Quarterlytics / Healthcare / Biotechnology / Erytech Pharma S.A.

Erytech Pharma S.A.

eryp · NASDAQ Healthcare
Claim this profile
Ticker eryp
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Employees 201-500
← All annual reports
FY2020 Annual Report · Erytech Pharma S.A.
Sign in to download
Loading PDF…
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
________________________
FORM 20-F
________________________

(Mark One)

☐

x

☐

☐

REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

OR

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from____________to____________
OR

For the fiscal year ended December 31, 2020
OR

Date of event requiring this shell company report
Commission File Number 001-38281
________________________

ERYTECH Pharma S.A.

(Exact name of registrant as specified in its charter and translation of registrant’s name into English)
________________________
France
(Jurisdiction of incorporation or organization)
60 Avenue Rockefeller
69008 Lyon France
(Address of principal executive offices)
Gil Beyen
Chief Executive Officer
ERYTECH Pharma S.A.
60 Avenue Rockefeller
69008 Lyon France
Tel: +33 4 78 74 44 38 Fax: +33 4 78 75 56 29 E-mail: investors@erytech.com
(Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person)
Securities registered or to be registered pursuant to Section 12(b) of the Act.

Title of each class
American Depositary Shares, each representing one
ordinary share, nominal value €0.10 per share
Ordinary shares, nominal value €0.10 per share*

Trading Symbol
ERYP

Name of each exchange on which registered
The Nasdaq Global Select Market

*

The Nasdaq Global Select Market*

*    Not for trading, but only in connection with the registration of the American Depositary Shares.

Securities registered or to be registered pursuant to Section 12(g) of the Act. None
Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act. None
________________________

Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report.

Ordinary shares, nominal value €0.10 per share: 20,057,562 as of December 31, 2020

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  ☐Yes   x No
If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.   ☐ Yes  x No
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  x Yes  ☐ No
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12
months (or for such shorter period that the registrant was required to submit such files).  xYes  ☐ No
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or an emerging growth company. See definition of “large accelerated filer,” “accelerated filer,” and
“emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer
Non-accelerated filer

☐
☐

Accelerated Filer
Emerging growth company

x
x

If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new
or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-
Oxley Act (15 U.S.C.7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐ Yes  x No
Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:

U.S. GAAP ☐

International Financial Reporting Standards
 as issued by the International Accounting Standards Board x

Other  ☐

If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow.  ☐ Item 17  ☐ Item 18
If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  ☐ Yes  x No

TABLE OF CONTENTS

INTRODUCTION

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

SUMMARY RISK FACTORS

PART  I

Item 1.

Item 2.

Item 3.

Identity of Directors, Senior Management and Advisers

Offer Statistics and Expected Timetable

Key Information

A. Selected Financial Data

B. Capitalization and Indebtedness

C. Reasons for the Offer and Use of Proceeds

D. Risk Factors

Item 4.

Information on the Company

A. History and Development of the Company

B. Business Overview

C. Organizational Structure

D. Property, Plants and Equipment

Item 4A.

Unresolved Staff Comments

Item 5.

Operating and Financial Review and Prospects

A. Operating Results

B. Liquidity and Capital Resources

C. Research and Development, Patents and Licenses

D. Trend Information

E. Off-Balance Sheet Arrangements

F. Tabular Disclosure of Contractual Obligations

G. Safe Harbor

Item 6.

Directors, Senior Management and Employees

A. Directors and Senior Management

B. Compensation

C. Board Practices

D. Employees

E. Share Ownership

Item 7.

Major Shareholders and Related Party Transactions

A. Major Shareholders

B. Related Party Transactions

C. Interests of Experts and Counsel

Item 8.

Financial Information

A. Consolidated Statements and Other Financial Information

B. Significant Changes

Item 9.

The Offer and Listing

A. Offer and Listing Details

B. Plan of Distribution

C. Markets

D. Selling Shareholders

E. Dilution

Page

1

1

3

5

5

5

5

5

5

5

44

44

45

73

73

74

74

78

81

83

83

84

84

84

85

85

88

96

99

99

99

99

101

105

105

105

105

105

105

105

105

105
106

F. Expenses of the Issue

Item 10.

Additional Information

A. Share Capital

B. Memorandum and Articles of Association

C. Material Contracts

D. Exchange Controls

E. Taxation

F. Dividends and Paying Agents

G. Statement by Experts

H. Documents on Display

I. Subsidiary Information

Item 11.

Item 12.

Quantitative and Qualitative Disclosures About Market Risk

Description of Securities Other than Equity Securities

A. Debt Securities

B. Warrants and Rights

C. Other Securities

D. American Depositary Shares

PART  II

Item 13.

Item 14.

Item 15.

Defaults, Dividend Arrearages and Delinquencies

Material Modifications to the Rights of Security Holders and Use of Proceeds

Controls and Procedures

Item 16A.

Audit Committee Financial Expert

Item 16B.

Code of Ethics

Item 16C.

Principal Accountant Fees and Services

Item 16D.

Exemptions from the Listing Standards for Audit Committees

Item 16E.

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

Item 16F.

Change in Registrant’s Certifying Accountant

Item 16G.

Corporate Governance

Item 16H. Mine Safety Disclosure

PART III

Item 17.

Item 18.

Item 19.

Financial Statements

Financial Statements

Exhibits

106

106

106

106

122

125

126

133

133

133

133

134

135

135

135

135

135

137

137

137

139

139

140

140

140

140

140

141

141

141

141

INTRODUCTION

Unless otherwise indicated in this Annual Report, “ERYTECH,” “the company,” “our company,” “we,” “us” and “our” refer to ERYTECH Pharma S.A.
and its consolidated subsidiary.

®

“ERYTECH Pharma,” “ERYCAPS,” “GRASPA,” the ERYTECH logo and other trademarks or service marks of ERYTECH Pharma S.A. appearing in this
Annual Report on Form 20-F for the year ended December 31, 2020, or the Annual Report, are the property of ERYTECH Pharma S.A. or its subsidiary,
ERYTECH  Pharma,  Inc.  Solely  for  convenience,  the  trademarks,  service  marks  and  trade  names  referred  to  in  this  Annual  Report  are  listed  without
the   and ™ symbols, but such references should not be construed as any indicator that their respective owners will not assert, to the fullest extent under
applicable law, their right thereto. All other trademarks, trade names and service marks appearing in this Annual Report are the property of their respective
owners. We do not intend to use or display other companies’ trademarks and trade names to imply any relationship with, or endorsement or sponsorship of
us by, any other companies.

Our audited consolidated financial statements have been prepared in accordance with International Financial Reporting Standards, or IFRS, as issued by the
International  Accounting  Standards  Board,  or  IASB.  Our  consolidated  financial  statements  are  presented  in  euros,  and  unless  otherwise  specified,  all
monetary amounts are in euros. All references in this Annual Report to “$,” “US$,” “U.S.$,” “U.S. dollars,” “dollars” and “USD” mean U.S. dollars and all
references to “€” and “euros” mean euros, unless otherwise noted. Throughout this Annual Report, references to ADSs mean American Depositary Shares
or ordinary shares represented by such ADSs, as the case may be.

1

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This  Annual  Report  contains  forward-looking  statements  within  the  meaning  of  Section  27A  of  the  U.S.  Securities  Act  of  1933,  as  amended,  and
Section  21E  of  the  Securities  Exchange  Act  of  1934,  as  amended,  that  are  based  on  our  management’s  beliefs  and  assumptions  and  on  information
currently  available  to  our  management.  All  statements  other  than  present  and  historical  facts  and  conditions  contained  in  this  Annual  Report,  including
statements regarding our future results of operations and financial positions, business strategy, plans and our objectives for future operations, are forward-
looking statements. When used in this Annual Report, the words “anticipate,” “believe,” “can,” “could,” “estimate,” “expect,” “intend,” “is designed to,”
“may,” “might,” “plan,” “potential,” “predict,” “objective,” “should,” or the negative of these and similar expressions identify forward-looking statements.
Forward-looking statements include, but are not limited to, statements about:

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

our  ability  to  attain,  maintain  and  expand  marketing  approval  for  eryaspase,  which  is  known  under  the  trade  name  GRASPA  in  Europe  and
Israel;

our ability to obtain and maintain regulatory approval of eryaspase in the indications for which we plan to develop, and any related restrictions,
limitations or warnings in the label of an approved drug or therapy;

the initiation, timing, progress and results of our pre-clinical studies and clinical trials including our pivotal Phase 3 clinical trial of eryaspase for
the treatment of second-line pancreatic cancer patients, which we refer to as the TRYbeCA-1 trial, and our proof-of-concept Phase 2 clinical trial
in triple negative breast cancer in Europe, which we refer to as the TRYbeCA-2 trial;

our ability to successfully develop our ERYCAPS platform and advance our pipeline of product candidates;

the size and growth potential of the markets for our product candidates, if approved, and the rate and degree of market acceptance of our product
candidates, including reimbursement that may be received from payors;

the timing of our regulatory filings for our product candidates, along with regulatory developments in the United States, European Union and
other foreign countries;

our ability to maintain and enter into and successfully complete collaborations, licensing arrangements or in-license or acquire rights to other
products, product candidates or technologies;

our  reliance  on  third  parties  to  manufacture  and  conduct  the  clinical  trials  of  our  lead  product  candidate,  which  we  refer  to  as  eryaspase  or
GRASPA,  and  our  other  ERYCAPS  product  candidates,  which  could  limit  our  commercialization  efforts  or  delay  or  limit  their  future
development or regulatory approval;

our ability to develop sales, commercialization, marketing and manufacturing capabilities and strategy, including future hiring plans;

our ability to produce adequate supplies of our product candidates for preclinical and clinical testing and to fulfill our contractual obligations to
third-party distributors;

the impact of the ongoing COVID-19 pandemic on our business, operations, strategy, goals and anticipated timelines;

the effects of increased competition as well as innovations by new and existing competitors in our industry;

our ability to obtain funding for our operations and working capital requirements;

our  ability  to  maintain,  protect  and  enhance  our  intellectual  property  rights  and  propriety  technologies  and  to  operate  our  business  without
infringing the intellectual property rights and proprietary technology of third parties;

regulatory developments in the United States, Europe and other foreign countries;

our ability to attract and retain qualified employees and key personnel;

our estimates regarding expenses, future revenues, capital requirements and needs for additional financing;

our planned level of capital expenditures and our belief that our existing cash, cash equivalents and short- term investments will be sufficient to
fund our operating expenses and capital expenditure requirements;

the uncertainty of economic conditions in certain countries in Europe and Asia, such as those related to the COVID-19 pandemic and general
economic conditions; and

• whether we are classified as a passive foreign investment company, or PFIC, for current and future periods; and

•

other risks and uncertainties, including those listed in the section of this Annual Report titled “Item 3.D—Risk Factors.”

You should refer to the section of this Annual Report titled “Item 3.D—Risk Factors” for a discussion of important factors that may cause our actual results
to differ materially from those expressed or implied by our forward-looking statements. As a result of these

2

factors, we cannot assure you that the forward-looking statements in this Annual Report will prove to be accurate. Furthermore, if our forward-looking
statements prove to be inaccurate, the inaccuracy may be material. In light of the significant uncertainties in these forward-looking statements, you should
not regard these statements as a representation or warranty by us or any other person that we will achieve our objectives and plans in any specified time
frame or at all. We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or
otherwise, except as required by law.

You should read this Annual Report and the documents that we reference in this Annual Report and have filed as exhibits to this Annual Report completely
and with the understanding that our actual future results, levels of activity, performance and events and circumstances may be materially different from
what we expect. We qualify all of our forward-looking statements by these cautionary statements.

In addition, statements that “we believe” and similar statements reflect our beliefs and opinions on the relevant subject. These statements are based upon
information available to us as of the date of this Annual Report, and while we believe such information forms a reasonable basis for such statements, such
information may be limited or incomplete. Our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of,
all  potentially  available  relevant  information.  These  statements  are  inherently  uncertain  and  investors  are  cautioned  not  to  unduly  rely  upon  these
statements.

Unless  otherwise  indicated,  information  contained  in  this  Annual  Report  concerning  our  industry  and  the  markets  in  which  we  operate,  including  our
general expectations and market position, market opportunity and market size estimates, is based on information from independent industry analysts, third-
party sources and management estimates. Management estimates are derived from publicly available information released by independent industry analysts
and third-party sources, as well as data from our internal research, and are based on assumptions made by us based on such data and our knowledge of such
industry and market, which we believe to be reasonable. In addition, while we believe the market opportunity information included in this Annual Report is
generally reliable and is based on reasonable assumptions, such data involve risks and uncertainties and are subject to change based on various factors,
including those discussed under the section of this Annual Report titled “Item 3.D—Risk Factors.”

3

SUMMARY RISK FACTORS

Investing in our shares involves numerous risks, including the risks described in “Item 3.D—Risk Factors” of this Annual Report on Form 20-F. Below are
some of our principal risks, any one of which could materially adversely affect our business, financial condition, results of operations, and prospects:

• We will need to raise substantial additional funding to pursue our business objectives, which may not be available on acceptable terms, or at all,
and  failure  to  obtain  this  necessary  capital  when  needed  may  force  us  to  delay,  limit  or  terminate  our  product  development  efforts,  potential
commercialization efforts or other operations.

• We have incurred significant losses since our inception and expect that we will continue to incur significant losses for the foreseeable future and

we may never achieve profitability.

•

Changes in European regulations may limit our ability to attract and obtain additional financing sources outside France.

• We have no approved products, which makes it difficult to assess our future prospects.

• We are heavily dependent on the success of our most advanced product candidate, eryaspase.

• We  face  substantial  competition  from  companies  with  considerably  more  resources  and  experience  than  we  have,  which  may  result  in  others

discovering, developing, receiving approval for, or commercializing products before or more successfully than us.

•

If our product candidates are not approved for marketing by applicable government authorities, we will be unable to commercialize them.

• Our product candidates will need to undergo clinical trials that are time-consuming and expensive, the outcomes of which are unpredictable, and
for which there is a high risk of failure. If clinical trials of our product candidates fail to satisfactorily demonstrate safety and efficacy to the EMA,
FDA and other regulators, we may incur additional costs or experience delays in completing, or ultimately be unable to complete, the development
and commercialization of these product candidates.

•

•

The  United  States  and  European  formulations  of  eryaspase  differ,  and  regulatory  authorities  in  each  jurisdiction  may  not  accept  data  from
alternative  eryaspase  formulations  in  other  jurisdiction(s),  which  may  result  in  delays  and  additional  costs  in  order  to  conduct  additional
comparability studies or the need to repeat nonclinical and clinical studies in order to obtain approval in each jurisdiction in which we intend to
commercialize eryaspase.

In the United States, our product candidates will be regulated as biological products, or biologics, which may subject them to competition sooner
than we currently anticipate.

• We rely on third parties to assist in our discovery and development activities, and the loss of any of our relationships with research institutions

could hinder our product development prospects.

• We rely on third parties to conduct our clinical trials and perform data collection and analysis, which may result in costs and delays that prevent us

from successfully commercializing our product candidates.

• Due to our limited resources and access to capital, our decisions to prioritize development of certain product candidates may adversely affect our

business prospects.

•

Even if we obtain marketing approvals for our product candidates, the terms of approvals and ongoing regulation of our products may limit how
we market our products, which could materially impair our ability to generate revenues.

• Our production capacity could prove insufficient for our needs.

• Our production costs may be higher than we currently estimate.

• Our failure to maintain certain tax benefits applicable to French biopharmaceutical companies may adversely affect our results of operations, our

cash flows and our financial condition.

•

The COVID-19 coronavirus could adversely impact our business, including our clinical trials.

• Our ability to compete may decline if we do not adequately protect our proprietary rights.

•

•

•

The market price of our equity securities may be volatile or may decline regardless of our operating performance.

The dual listing of our ordinary shares and our ADSs may adversely affect the liquidity and value of our ordinary shares and ADSs.

The rights of shareholders in companies subject to French corporate law differ in material respects from the rights of shareholders of corporations
incorporated in the United States.

4

Item1.

Identity of Directors, Senior Management and Advisers.

Not applicable.

Item2. Offer Statistics and Expected Timetable

PART I

Not applicable.

Item 3. Key Information.

3.A.Selected Financial Data

We  have  elected  to  comply  with  Item  3.A  of  Form  20-F  (Selected  Financial  Data),  as  amended  February  10,  2021  and  are  omitting  this  disclosure  in
reliance thereon.

3.B.Capitalization and Indebtedness

Not applicable.

3.C.Reasons for the Offer and Use of Proceeds

Not applicable.

3.D.Risk Factors

Our business faces significant risks. You should carefully consider all of the information set forth in this Annual Report and in our other filings with the
United States Securities and Exchange Commission, or the SEC, including the following risk factors which we face and which are faced by our industry.
Our business, financial condition or results of operations could be materially adversely affected by any of these risks. This report also contains forward-
looking statements that involve risks and uncertainties. Our results could materially differ from those anticipated in these forward-looking statements, as a
result of certain factors including the risks described below and elsewhere in this Annual Report and our other SEC filings. See “Special Note Regarding
Forward-Looking Statements” above.

3.D.1. Risks Related to our Financial Position and Capital Needs

We will need to raise substantial additional funding to pursue our business objectives, which may not be available on acceptable terms, or at all, and
failure  to  obtain  this  necessary  capital  when  needed  may  force  us  to  delay,  limit  or  terminate  our  product  development  efforts,  potential
commercialization efforts or other operations.

Our net cash flows used in operating activities were €47.9 million, €43.3 million and €51.7 million for the years ended December 31, 2018, 2019 and 2020,
respectively. As of December 31, 2020, our cash and cash equivalents were €44.4 million ($54.4 million) compared to €73.2 million as of December 31,
2019 which represents an annual cash and cash equivalents net use of €28.7 million. We believe that our cash and cash equivalents as of December 31,
2020  with  (i)  the  sale  of  shares  under  the  ATM  program  in  February  2021,  for  a  gross  amount  of  €6.6  million  ($8.0  million)  and  (iii)  the  tranche  of
convertible  notes  issued  in  March  2021  for  a  gross  amount  of  €3.0  million  enable  us  to  cover  our  cash  requirements  until  the  fourth  quarter  2021.
Moreover, we believe that we will be able to fund our operations until the first quarter 2022 with the possibility of further use of the OCABSA agreement
to raise up to a maximum of €42.0 million until June 2022, subject to the regulatory limit of 20% dilution, representing approximately €30.0 million as of
the date of this Annual Report based on a share price of €6.63 (closing share price on the day before the date of this Annual Report). However, we will
need to obtain substantial additional funding to support our continuing operations beyond the first quarter 2022.

Refer to "Item 10.B. Liquidity and capital resources" and "Item 10.C Material Contracts for further information on the ATM program and on the OCABSA
agreement".

Identifying  potential  product  candidates  and  conducting  preclinical  testing  and  clinical  trials  is  a  time  consuming,  expensive  and  uncertain  process  that
takes  years  to  complete,  and  we  or  any  current  or  future  collaborators  may  never  generate  the  necessary  data  or  results  required  to  obtain  regulatory
approval  and  achieve  product  sales.  In  addition,  eryaspase  or  any  of  our  product  candidates,  if  approved,  may  not  achieve  commercial  success.  Our
commercial revenue, if any, will be derived from the sale of drugs that we do not

5

expect to be commercially available for several years, if at all. Accordingly, we will need to continue to rely on additional financing to achieve our business
objectives. While we are pursuing various financing strategies, adequate additional financing may not be available to us on acceptable terms, or at all. If we
are unable to raise capital when needed or on attractive terms, we could be forced to delay, reduce or eliminate our research and development programs or
any future commercialization efforts.

Raising additional capital may cause dilution to our shareholders, restrict our operations or require us to relinquish rights to our product candidates.

To date, we have financed our operations primarily through a combination of sale of equity securities, debt financings, including, but not limited to, the
ATM offering program in the United States, the convertible bond financing pursuant to the OCABSA Agreement, state-guaranteed loans in France, or PGE
loans, and public assistance programs in support of innovation, such as the conditional advances and subsidies from the Banque Publique d’Investissement,
or Bpifrance, and research tax credits. Until such time, if ever, as we can generate substantial revenue from the sale of our product candidates, we expect to
continue  to  finance  our  cash  needs  through  a  combination  of  equity  offerings,  debt  financings,  collaborations,  strategic  alliances  and  licensing
arrangements. To the extent that we raise additional capital through the sale of equity securities or convertible debt securities, your ownership interest will
be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect your rights as a shareholder. Debt financing
and preferred equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such
as incurring additional debt, making capital expenditures or declaring dividends.

We also implemented a convertible bond financing with European High Growth Opportunities Fund in June 2020 and an At the Market Program (ATM) in
the United States, it being specified that the total number of new shares that may be issued in connection with these two instruments is capped at 20% of
the  number  of  shares  admitted  to  trading  on  Euronext  Paris,  including  shares  admitted  without  a  prospectus  during  the  twelve  months  prior  to  their
issuance.

If we raise additional funds through collaborations, strategic alliances or marketing, distribution or licensing arrangements with third parties, we may be
required to relinquish valuable rights to our research programs or product candidates or grant licenses on terms that may not be favorable to us. If we are
unable to raise additional funds through equity or debt financings or other arrangements with third parties when needed, we may be required to delay, limit,
reduce or terminate our drug development or future commercialization efforts or grant rights to third parties to develop and market product candidates that
we would otherwise prefer to develop and market ourselves.

We have incurred significant losses since our inception and expect that we will continue to incur significant losses for the foreseeable future and we
may never achieve profitability.

We have not yet generated significant revenues and have incurred significant operating losses since our inception. We incurred net losses of €38.2 million,
€62.7  million  and  €73.3  million  for  the  years  ended  December  31,  2018,  2019  and  2020,  respectively;  these  losses  have  adversely  impacted,  and  will
continue to adversely impact, our equity attributable to shareholders and net assets. These losses are principally the result of our research expenditures and
development costs for conducting preclinical studies and clinical trials, as well as general and administrative expenses associated with our operations. We
anticipate that our operating losses will continue for at least the next several years as we continue our research and development activities and until we
generate substantial revenues from any approved product candidates. As of December 31, 2020, we had a total shareholders' equity of €26.5 million.

We have devoted most of our financial resources to research and development, including our clinical and preclinical development activities. The amount of
our  future  net  losses  will  depend,  in  part,  on  the  pace  and  amount  of  our  future  expenditures  and  our  ability  to  obtain  funding  through  equity  or  debt
financings,  strategic  collaborations  or  tax  credits  until  such  time,  if  ever,  as  we  can  generate  substantial  product  revenue.  We  have  not  yet  received
marketing approval for any of our product candidates. Even if we obtain regulatory approval to market a product candidate, our future revenues will depend
upon  the  size  of  any  markets  in  which  our  product  candidates  have  received  approval,  and  our  ability  to  achieve  sufficient  market  acceptance,
reimbursement from third-party payors and adequate market share for our product candidates in those markets.

We anticipate that our expenses will increase substantially as we:

•

•

•

•

•

continue the preclinical and clinical development of our product candidates;

expand the scope of our current clinical trials for our product candidates;

expand our clinical and commercial manufacturing capabilities for our product candidates;

seek regulatory and marketing approvals for our product candidates that successfully complete clinical trials;

establish a sales, marketing and distribution infrastructure to commercialize any products for which we may obtain marketing approval and for
which we have not entered into a third-party collaboration;

6

•

•

seek to identify and validate additional product candidates;

acquire or in-license other product candidates and technologies;

• make milestone, royalty or other payments under in-license or collaboration agreements;

• maintain, protect and expand our intellectual property portfolio;

•

•

attract new and retain existing skilled personnel; and

create additional infrastructure or improve existing ones to support our operations.

Our operating results may fluctuate significantly from year to year, such that a period-to-period comparison of our results of operations may not be a good
indication of our future performance. In any particular period or periods, our operating results could be below the expectations of securities analysts or
investors, which could cause the price of the ordinary shares and ADSs to decline.

We  may  be  forced  to  repay  conditional  advances  prematurely  if  we  fail  to  comply  with  our  contractual  obligations  under  certain  innovation  grant
agreements.

Through December 31, 2020, we have received €2.4 million in non-refundable grants and €5.0 million in conditional advances from Bpifrance. To date,
TEDAC  is  the  only  ongoing  program  funded  by  non-refundable  grants  and  conditional  advances.  If  we  fail  to  comply  with  our  contractual  obligations
under the applicable innovation grant agreements, including if we lose our exclusive right to commercially develop our product candidates, we could be
forced to repay the conditional advances (amounting to €4.2 million at the date of this Annual Report) ahead of schedule. Such premature repayment could
adversely affect our ability to finance our research and development projects, in which case we would need to locate alternative sources of capital, which
may not be available on commercially reasonable terms or at all.

We have entered into a note and warrant transaction consisting of tranches of convertible bonds with warrants attached (OCABSA) and may encounter
adverse effects as a result thereof.

On  June  24,  2020,  we  entered  into  the  OCABSA  Agreement,  pursuant  to  which  we  may  raise  up  to  €60  million  in  the  aggregate  from  the  exercise  of
convertible notes, subject to the regulatory limit of 20% dilution, unless further authorized. The share warrants attached to the notes represent 10% of the
nominal amount of the issued notes and have an exercise price of €8.91 per share. This exercise price represents a 20% premium over the lowest volume-
weighted average daily price of the share over the reference period preceding the issue of the first tranche.

As  of  December  31,  2020,  we  issued  five  tranches  of  €3.0  million  (on  July  6,  2020,  August  24,  2020,  November  17,  2020,  December  7,  2020  and
December 22, 2020), for a total amount of €15.0 million, all of which convertible notes have been converted into ordinary shares and no warrants have
been exercised. Since December 31, 2020, we issued one further tranche of €3.0 million on March 2, 2021 and we could decide to issue additional tranches
up to a maximum of €42.0 million until June 2022, subject to the regulatory limit of 20% dilution. There is no guarantee that we will be able to raise this
maximum amount, and our ability to issue additional tranches depends on a number of factors and conditions beyond our control.

By using this financing program, we may encounter the following adverse effects:

•

•

•

•

the rapid and frequent sale of the new shares resulting from the conversion of the convertible notes and the exercise of the share warrants by the
investor may adversely impact our share price;

the total amount of issuances of convertible notes and share warrants may depend on certain regulatory approvals making the financing amount
uncertain;

as  our  share  price  has  an  impact  on  the  number  of  shares  issued  upon  the  conversion  of  the  convertible  notes  and  the  exercise  of  the  share
warrants, the number of shares issued upon the conversion of the convertible notes and the exercise of the share warrants is uncertain and may
significantly fluctuate during the lifetime of the financing program; and

conversion into ordinary shares of all or part of the convertible notes and the exercise of all or part of the share warrants could have a potentially
significant dilutive effect for our shareholders.

As an example, a shareholder holding 1% of our share capital as of the date of this Annual Report would hold 0.73% of the share capital in the event of the
conversion of outstanding notes, the exercise of outstanding warrants and the use of all the amounts remaining in the OCABSA Agreement (€42.0 million)
and a share price of €6.63 (closing share price on the day before the date of this Annual Report), subject to obtaining additional authorizations relating
thereto if applicable.

7

3.D.2. Risks Related to Development of our Product Candidates

We have no approved products, which makes it difficult to assess our future prospects.

A key element of our strategy is to use and expand our proprietary ERYCAPS platform to build a pipeline of innovative product candidates and to progress
these drug candidates through clinical development for the treatment of severe forms of cancer and orphan diseases. The discovery of therapeutic drugs
based on encapsulating molecules inside red blood cells is an emerging field, and the scientific discoveries that form the basis for our efforts to discover
and develop drug candidates are relatively new. The scientific evidence to support the feasibility of developing drug candidates based on these discoveries
is both preliminary and limited. Although our research and development efforts to date have resulted in a pipeline of product candidates, we have not yet
obtained approval for any products, we have not yet generated any revenues from the sale of approved products and we may not be able to develop product
candidates that are considered to be safe and effective. Our operations to date have been limited to developing our ERYCAPS platform technology and
undertaking preclinical studies and clinical trials of our product candidates, including our lead product candidate, eryaspase, also known as GRASPA, the
approved  trade  name  for  eryaspase  in  Europe.  However,  we  have  not  yet  demonstrated  an  ability  to  overcome  many  of  the  risks  and  uncertainties
frequently encountered by companies in new and rapidly evolving fields, particularly in the pharmaceutical industry. Consequently, the ability to predict
our future operating results or business prospects is more limited than if we had a longer operating history or approved products on the market.

We are heavily dependent on the success of our most advanced product candidate, eryaspase.

Our  business  and  future  success  depends  on  our  ability  to  obtain  regulatory  approval  for  and,  together  with  third-party  collaborators,  to  successfully
commercialize  our  lead  product  candidate,  eryaspase,  which  is  under  clinical  development  for  oncology  indications.  Eryaspase  is  our  only  product
candidate in late-stage clinical development, and our business currently depends heavily on its successful development. Eryaspase will require additional
clinical  and  non-clinical  development,  regulatory  review  and  approval  in  multiple  jurisdictions,  substantial  investment,  access  to  sufficient  commercial
manufacturing  capacity  and  significant  marketing  efforts  before  we  can  generate  any  revenue  from  product  sales.  We  cannot  be  certain  eryaspase  will
receive regulatory approval or be successfully commercialized even if we receive regulatory approval. In addition, because eryaspase is our most advanced
product  candidate,  and  because  our  other  product  candidates  are  based  on  the  same  ERYCAPS  platform  technology,  if  eryaspase  encounters  safety  or
efficacy problems, developmental delays or regulatory issues or other problems, our development plans and business would be significantly harmed.

We may not be successful in our efforts to use and expand our ERYCAPS platform to develop marketable products.

We believe that our ERYCAPS platform has broad potential application and can be used to encapsulate a wide range of therapeutic agents within red blood
cells for which long-circulating therapeutic activity and rapid and specific targeting is desired. However, we are at an early stage of development and our
platform has not yet, and may never, lead to approved or marketable products. Even if we are successful in continuing to build our product pipeline, the
potential product candidates that we identify may not be suitable for clinical development, including for reasons related to their harmful side effects, limited
efficacy or other characteristics that indicate that they are unlikely to be products that will receive marketing approval and achieve market acceptance. Use
of red blood cells as the basis for our ERYCAPS platform may result in similar risks that affect the ability of our products to receive marketing approval
and achieve market acceptance. If we do not successfully develop and commercialize product candidates based upon our technological approach, we may
not be able to obtain product or collaboration revenues in future periods, which would harm our business and our prospects.

We  face  substantial  competition  from  companies  with  considerably  more  resources  and  experience  than  we  have,  which  may  result  in  others
discovering, developing, receiving approval for, or commercializing products before or more successfully than us.

The biopharmaceuticals industry is highly competitive. Numerous biopharmaceutical laboratories, biotechnology companies, institutions, universities and
other  research  entities  are  actively  involved  in  the  discovery,  research,  development  and  marketing  of  therapeutics  to  treat  severe  forms  of  cancer  and
orphan diseases, making it a highly competitive field. We have competitors in a number of jurisdictions, many of which have substantially greater name
recognition, commercial infrastructures and financial, technical and personnel resources than we have.

L-asparaginase  is  currently  available  in  four  forms,  and  the  current  market  primarily  includes  several  products  marketed  by  large  pharmaceutical
companies, including Jazz Pharmaceuticals PLC and Servier. To our knowledge, there is no potential treatment being developed using non encapsulated L-
asparaginase for the treatment of pancreatic cancer or other solid tumor indications, but this may change and current marketed asparaginase products may
attempt  to  broaden  their  indications.  Our  products  and  product  candidates  may  also  have  to  compete  with  other  products  and  product  candidates  in
development by established pharmaceutical companies and biotechnology companies.

8

Established  competitors  may  invest  heavily  to  quickly  discover  and  develop  novel  compounds  that  could  make  our  product  candidates  obsolete  or
uneconomical.  Any  new  product  that  competes  with  an  approved  product  may  need  to  demonstrate  compelling  advantages  in  efficacy,  convenience,
tolerability and safety to be commercially successful. Any of our product candidates that are approved in the future will also face other competitive factors,
including generic competition, which could force us to lower prices or could result in reduced sales. In addition, new products developed by others could
emerge as competitors to our product candidates. If we are not able to compete effectively against our current and future competitors, our business will not
grow and our financial condition and operations will suffer.

Intravenous administration of our product candidates could present risks that exist in relation to blood transfusions.

Our product candidates must be intravenously injected and are therefore subject to risks associated with blood transfusions and the blood type compatibility
of the donor. We currently acquire red blood cells from blood donations prepared and tested by blood banks, notably the Établissement Français du Sang,
the  New  York  Blood  Center,  the  American  Red  Cross  and  the  German  Red  Cross  Blood  Donor  Service.  However,  using  donor-derived  red  blood  cells
presents risks associated with the potential transmission of infectious agents, such as viruses, bacteria, prions and parasites, as well as risks associated with
the  development  of  allergies  or  other  complications,  such  as  allo-immunization,  post-transfusion  graft-versus-host  disease,  anaphylactic  shock  or  death.
Risks  associated  with  the  encapsulation  of  molecules  inside  red  blood  cells  may  vary  and  will  depend  on  their  toxicity.  Although  the  blood  banks  that
supply  our  red  blood  cells  follow  a  strict  preparation  process,  approved  by  health  authorities,  to  detect  and  reduce  possible  risks  for  contamination  by
infectious agents, we cannot guarantee that our product candidates will not be contaminated, which could be detrimental to our product development and
commercialization efforts.

3.D.3. Risks Related to the Discovery and Development of and Obtaining Regulatory Approval for our Product Candidates

If our product candidates are not approved for marketing by applicable government authorities, we will be unable to commercialize them.

The European Commission (following review by the European Medicines Agency, or EMA) in Europe, the U.S. Food and Drug Administration, or FDA, in
the  United  States  and  comparable  regulatory  authorities  in  other  jurisdictions  must  approve  new  drug  or  biologic  candidates  before  they  can  be
commercialized,  marketed,  promoted  or  sold  in  those  territories.  We  must  provide  these  regulatory  authorities  with  data  from  preclinical  studies  and
clinical  trials  that  demonstrate  that  our  product  candidates  are  safe  and  effective  for  a  defined  indication  before  they  can  be  approved  for  commercial
distribution. Clinical testing is expensive, difficult to design and implement, can take many years to complete and is inherently uncertain as to outcome. We
must provide data to ensure the identity, strength, quality and purity of the drug substance and drug product. Also, we must assure the regulatory authorities
that the characteristics and performance of the clinical batches will be replicated consistently in the commercial batches. We have focused our development
and planned commercialization efforts on Europe and the United States.

The processes by which regulatory approvals are obtained from the EMA and FDA to market and sell a new product are complex, require a number of
years and involve the expenditure of substantial resources. We cannot assure you that eryaspase or any of our future product candidates will receive EMA
or  FDA  approval.  For  example,  in  September  2015,  we  submitted  a  Marketing  Authorization  Application,  or  MAA,  to  the  EMA  for  the  approval  of
GRASPA as a treatment for acute lymphoblastic leukemia, or ALL. However, in November 2016, we announced our withdrawal of the MAA for GRASPA.
In October 2017, we resubmitted to the EMA our MAA for GRASPA for relapsed or refractory ALL and subsequently announced our withdrawal of the
MAA for GRASPA in June 2018. Even if we obtain marketing approval of any of our product candidates in a major pharmaceutical market such as the
United  States  or  Europe,  we  may  never  obtain  approval  or  commercialize  our  products  in  other  major  markets,  due  to  varying  approval  procedures  or
otherwise, which would limit our ability to realize their full market potential.

Our product candidates will need to undergo clinical trials that are time-consuming and expensive, the outcomes of which are unpredictable, and for
which there is a high risk of failure. If clinical trials of our product candidates fail to satisfactorily demonstrate safety and efficacy to the EMA, FDA
and  other  regulators,  we  may  incur  additional  costs  or  experience  delays  in  completing,  or  ultimately  be  unable  to  complete,  the  development  and
commercialization of these product candidates.

Preclinical testing and clinical trials are long, expensive and unpredictable processes that can be subject to extensive delays. We cannot guarantee that any
clinical trials will be conducted as planned or completed on schedule, if at all. It may take several years to complete the preclinical testing and clinical
development  necessary  to  commercialize  a  product  candidate,  and  delays  or  failure  can  occur  at  any  stage.  Interim  results  of  clinical  trials  do  not
necessarily  predict  final  results,  and  success  in  preclinical  testing  and  early  clinical  trials  does  not  ensure  that  later  clinical  trials  will  be  successful.  A
number of companies in the pharmaceutical, biopharmaceutical and biotechnology industries have suffered significant setbacks in advanced clinical trials
even after promising results in earlier trials, and we cannot be certain that we will not face similar setbacks. The design of a clinical trial can determine
whether its results will support approval of a product, and flaws in the design of a clinical trial may not become apparent until the clinical trial is well
advanced. An unfavorable outcome in one or more trials would be a major setback for our product candidates and

9

for us. Due to our limited financial resources, an unfavorable outcome in one or more trials may require us to delay, reduce the scope of, or eliminate one or
more product development programs, which could have a material adverse effect on our business and financial condition and on the value of our securities.

In connection with clinical testing and trials, we face a number of risks, including risks that:

•

•

•

•

•

a product candidate is ineffective, inferior to existing approved medicines, unacceptably toxic, or has unacceptable side effects;

patients may die or suffer other adverse effects for reasons that may or may not be related to the product candidate being tested;

extension studies on long-term tolerance could invalidate the use of our product;

the results may not confirm the positive results of earlier testing or trials; and

the results may not meet the level of statistical significance required by the EMA, FDA or other regulatory agencies to establish the safety and
efficacy of our product candidates.

The results of preclinical studies do not necessarily predict clinical success, and larger and later-stage clinical trials may fail to show the desired safety and
efficacy  results  despite  having  progressed  through  preclinical  studies  and  initial  clinical  trials.  Furthermore,  there  can  be  no  assurance  that  any  of  our
clinical  trials  will  ultimately  be  successful  or  support  further  clinical  development  of  any  of  our  product  candidates.  Our  clinical  trials  of  eryaspase
conducted to date have generated favorable safety and efficacy data, other than our Phase 2b clinical trial in acute myeloid leukemia for which we did not
achieve the primary endpoint. However, we may have different results in other indications. Differences in enrollment criteria and different combinations
with other treatment modalities may also lead to different outcomes in our future clinical trials. As a result, we may not observe a similarly favorable safety
or  efficacy  profile  as  in  our  prior  clinical  trials.  There  is  a  high  failure  rate  for  drugs  proceeding  through  clinical  trials.  Many  companies  in  the
pharmaceutical,  biopharmaceutical  and  biotechnology  industries  have  suffered  significant  setbacks  in  late-stage  clinical  trials  after  achieving  positive
results in early-stage development and we cannot be certain that we will not face similar setbacks. These setbacks have been caused by, among other things,
preclinical findings made while clinical trials were underway, or safety or efficacy observations made in preclinical studies and clinical trials, including
previously  unreported  adverse  events.  Moreover,  preclinical  and  clinical  data  are  often  susceptible  to  varying  interpretations  and  analyses  and  many
companies that believed their product candidates performed satisfactorily in preclinical studies and clinical trials nonetheless failed to obtain FDA or EMA
approval.  In  addition,  we  cannot  assure  you  that  in  the  course  of  potential  widespread  use  in  the  future,  we  will  not  suffer  setbacks  in  maintaining
production quality or stability.

If we do not successfully complete preclinical and clinical development, we will be unable to market and sell our product candidates and generate revenues.
Even  if  we  do  successfully  complete  clinical  trials,  those  results  are  not  necessarily  predictive  of  results  of  additional  trials  that  may  be  needed  before
marketing applications may be submitted to the EMA or FDA, as applicable. For instance, despite having observed favorable results and safety profile in
multiple  clinical  trials  of  eryaspase  in  patients  with  ALL,  based  on  feedback  from  the  regulatory  agencies  requiring  additional  investment,  increasingly
competitive landscape and the limited market opportunity for eryaspase with ALL, we decided in June 2018 to cease further clinical developments efforts
in ALL. In addition, our research and development costs amounted to €33.5 million, €52.2 million and €57.6 million during the years ended December 31,
2018,  2019  and  2020,  respectively.  Although  there  are  a  large  number  of  drugs  and  biologics  in  development  in  Europe,  the  United  States  and  other
countries, only a small percentage result in the submission of a marketing application, even fewer are approved for commercialization, and only a small
number  achieve  widespread  physician  and  consumer  acceptance  following  regulatory  approval.  If  our  clinical  trials  are  substantially  delayed  or  fail  to
prove the safety and effectiveness of our product candidates in development, we may not receive regulatory approval of any of these product candidates
and our business and financial condition will be materially harmed.

Delays, suspensions and terminations in our clinical trials could result in increased costs to us and delay or prevent our ability to generate revenues.

Human clinical trials are very expensive, time-consuming, and difficult to design, implement and complete. The completion of trials for eryaspase or our
other product candidates may be delayed for a variety of reasons, including delays in:

•

•

•

•

demonstrating sufficient safety and efficacy to obtain regulatory approval to commence a clinical trial;

reaching agreement on acceptable terms with prospective contract research organizations, or CROs, and clinical trial sites;

validating test methods to support quality testing of the drug substance and drug product;

obtaining sufficient quantities of the drug substance or other materials necessary to conduct clinical trials;

• manufacturing sufficient quantities of a product candidate;

10

•

•

•

•

obtaining approval of applications from regulatory authorities for the commencement of a clinical trial;

obtaining institutional review board, or IRB, approval to conduct a clinical trial at a prospective clinical trial site;

determining dosing and clinical trial design; and

patient enrollment, which is a function of many factors, including the size of the patient population, the nature of the protocol, the proximity of
patients to clinical trial sites, the availability of effective treatments for the relevant disease and the eligibility criteria for the clinical trial.

For example, in our Phase 1 clinical trial in the United States in adult ALL patients, patient enrollment took longer than expected.

The  commencement  and  completion  of  clinical  trials  for  our  product  candidates  may  be  delayed,  suspended  or  terminated  due  to  a  number  of  factors,
including:

•

•

•

•

•

•

•

•

•

•

•

lack of effectiveness of product candidates during clinical trials;

adverse events, safety issues or side effects relating to the product candidates or their formulation;

inability to raise additional capital in sufficient amounts to continue clinical trials or development programs, which are very expensive;

the need to sequence clinical trials as opposed to conducting them concomitantly in order to conserve resources;

our inability to maintain or enter into collaborations relating to the development and commercialization of our product candidates;

our failure to conduct clinical trials in accordance with regulatory requirements;

our inability to manufacture or obtain from third parties materials sufficient for use in preclinical studies and clinical trials;

governmental or regulatory delays and changes in regulatory requirements, policy and guidelines, including mandated changes in the scope or
design of clinical trials or requests for supplemental information with respect to clinical trial results;

delays in patient enrollment, variability in the number and types of patients available for clinical trials, and lower-than anticipated retention rates
for patients in clinical trials;

difficulty in patient monitoring and data collection due to failure of patients to maintain contact after treatment; and

varying interpretations of our data, and regulatory commitments and requirements by the EMA, FDA and similar regulatory agencies.

For example, our Investigational New Drug application, or IND, submitted to the FDA for eryaspase was on clinical hold from its original submission in
July 2011 until March 21, 2013. Although we received acceptance from the FDA of our IND to extend our pivotal Phase 3 clinical trial of eryaspase for the
treatment  of  second-line  pancreatic  cancer  patients  to  the  United  States  in  May  2019,  we  cannot  assure  you  that  any  future  IND  will  not  be  subject  to
clinical holds.

Many of these factors may also ultimately lead to denial of our marketing application for eryaspase or our other product candidates. If we experience delay,
suspensions or terminations in a clinical trial, the commercial prospects for the related product candidate will be harmed, and our ability to generate product
revenues will be delayed or such revenues could be reduced or fail to materialize.

We  may  find  it  difficult  to  enroll  patients  in  our  clinical  trials,  which  could  delay  or  prevent  us  from  proceeding  with  clinical  trials  of  our  product
candidates.

Identifying  and  qualifying  patients  to  participate  in  clinical  trials  of  our  product  candidates  is  critical  to  our  success.  The  timing  of  our  clinical  trials
depends on our ability to recruit patients to participate, as well as completion of required follow-up periods. If patients are unwilling to enroll in our clinical
trials because of competitive clinical trials for similar patient populations or for other reasons, the timeline for recruiting patients, conducting studies and
obtaining  regulatory  approval  of  our  product  candidates  may  be  delayed.  These  delays  could  result  in  increased  costs,  delays  in  advancing  our  product
candidates, delays in testing the effectiveness of our product candidates or termination of clinical trials altogether.

Some  of  our  current  product  candidates  are  being  developed  to  treat  severe  forms  of  cancer  and  other  orphan  diseases,  which  are  generally  defined  as
having a patient population of fewer than 200,000 individuals in the United States. For example, 150,000 new cases of pancreatic cancer are diagnosed
each  year  in  the  United  States  and  Europe.  We  may  not  be  able  to  initiate  or  continue  clinical  trials  if  we  cannot  enroll  a  sufficient  number  of  eligible
patients to participate in the clinical trials required by the FDA, EMA or other regulatory authorities. Also, we may not be able to identify, recruit and enroll
a sufficient number of patients, or those with required or

11

desired characteristics, to complete our clinical trials in a timely manner. Patient enrollment can be affected by many factors, including:

•

•

•

•

•

•

•

•

•

•

size of the patient population and process for identifying patients;

eligibility and exclusion criteria for our clinical trials;

perceived risks and benefits of our product candidates;

severity of the disease under investigation;

proximity and availability of clinical trial sites for prospective patients;

ability to obtain and maintain patient consent;

patient drop-outs prior to completion of clinical trials;

patient referral practices of physicians;

ability to monitor patients adequately during and after treatment ; and

COVID-19  pandemic;  in  that  respect,  we  experienced  a  3  to  4  months  delay  in  patient  enrollment  in  the  TRYbeCA1  trial,  which  has  been
completed to date.

Our ability to successfully initiate, enroll and complete clinical trials in any foreign country is subject to numerous risks unique to conducting business in
foreign countries, including:

•

•

•

•

difficulty in establishing or managing relationships with CROs and physicians;

different standards for the conduct of clinical trials;

inability to locate qualified local consultants, physicians and partners; and

the potential burden of complying with a variety of foreign laws, medical standards and regulatory requirements, including the regulation of
pharmaceutical and biotechnology products and treatment.

If we have difficulty enrolling a sufficient number of patients or finding additional clinical trial sites to conduct our clinical trials as planned, we may need
to delay, limit or terminate ongoing or planned clinical trials, any of which could have an adverse effect on our business, financial condition, results of
operations and prospects.

Changes in regulatory requirements, guidance from regulatory authorities or unanticipated events during the clinical trials of our product candidates
could necessitate changes to clinical trial protocols or additional clinical trial requirements, which would result in increased costs to us and could delay
our development timeline.

Changes in regulatory requirements, FDA guidance or guidance from the EMA or other European regulatory authorities, or unanticipated events during our
clinical  trials,  may  force  us  to  amend  clinical  trial  protocols.  The  regulatory  authorities  could  also  impose  additional  clinical  trial  requirements.
Amendments  to  our  clinical  trial  protocols  would  require  resubmission  to  the  FDA,  EMA,  national  clinical  trial  regulators  and  IRBs  for  review  and
approval, which may adversely impact the cost, timing or successful completion of a clinical trial. If we experience delays completing, or if we terminate,
any of our clinical trials, or if we are required to conduct additional clinical trials, the commercial prospects for our product candidates may be harmed and
our ability to generate product revenue will be delayed.

The United States and European formulations of eryaspase differ, and regulatory authorities in each jurisdiction may not accept data from alternative
eryaspase formulations in other jurisdiction(s), which may result in delays and additional costs in order to conduct additional comparability studies or
the need to repeat nonclinical and clinical studies in order to obtain approval in each jurisdiction in which we intend to commercialize eryaspase.

The  formulations  of  eryaspase  used  to  conduct  clinical  trials  in  the  United  States  and  Europe  have  differed  in  composition,  manufacturing  process  and
release specifications. After seeking feedback from regulatory agencies, we have conducted studies to harmonize the formulation of eryaspase, including in
vitro comparability studies and stability studies. Even with this additional data, regulatory authorities may not find it acceptable to support the approval of
eryaspase. If regulatory authorities require us to generate

12

additional nonclinical or clinical data, the generation of additional data could result in submission delays and additional costs in order to obtain marketing
approval of eryaspase.

In the United States, our product candidates will be regulated as biological products, or biologics, which may subject them to competition sooner than
we currently anticipate.

The  Biologics  Price  Competition  and  Innovation  Act  of  2009,  or  BPCIA,  was  enacted  as  part  of  the  2010  enactments  of  the  Patient  Protection  and
Affordable  Care  Act,  as  amended  by  the  Health  Care  and  Education  Reconciliation  Act  of  2010,  or  collectively,  the  ACA,  to  establish  an  abbreviated
licensure  pathway  for  biological  products  shown  to  be  biosimilar  to,  or  interchangeable  with,  an  FDA-licensed  biological  reference  product.
“Biosimilarity”  means  that  the  biological  product  is  highly  similar  to  the  reference  product  notwithstanding  minor  differences  in  clinically  inactive
components  and  there  are  no  clinically  meaningful  differences  between  the  biological  product  and  the  reference  product  in  terms  of  safety,  purity,  and
potency  of  the  product.  To  meet  the  higher  standard  of  “interchangeability,”  an  applicant  must  provide  sufficient  information  to  show  biosimilarity  and
demonstrate  that  the  biological  product  can  be  expected  to  produce  the  same  clinical  result  as  the  reference  product  in  any  given  patient  and,  if  the
biological product is administrated more than once to an individual, the risk in terms of safety or diminished efficacy of alternating or switching between
the use of the biological product and the reference product is not greater than the risk of using the reference product without such alternation or switch.

Under the BPCIA, an application for a biosimilar or interchangeable product cannot be approved by the FDA until 12 years after the reference product was
first licensed, and the FDA will not even accept an application for review until four years after the date of first licensure. The law is evolving, complex and
is still being interpreted and implemented by the FDA. As a result, its ultimate impact, implementation, and meaning are subject to uncertainty. While it is
uncertain when such processes intended to implement BPCIA may be fully adopted by the FDA, any such processes could have a material adverse effect
on the future commercial prospects for our biological products.

We believe that any of our product candidates approved as a biological product under a Biologics License Application, or BLA, should qualify for the 12-
year period of exclusivity. However, there is a risk that this exclusivity could be shortened due to congressional action or otherwise, potentially creating the
opportunity for biosimilar or interchangeable competition sooner than we currently anticipate. Moreover, the process by which an interchangeable product,
once  approved,  will  be  substituted  for  any  one  of  our  reference  products  in  a  way  that  is  similar  to  traditional  generic  substitution  for  non-biological
products,  such  as  drugs,  is  not  yet  clear,  and  will  depend  on  a  number  of  marketplace  and  regulatory  factors  that  are  still  developing  and  subject  to
interpretation.

Even though we have obtained orphan drug designation from the FDA and EMA for eryaspase for the treatment of pancreatic cancer, ALL and AML,
we may not be able to obtain orphan drug marketing exclusivity for any of our other product candidates for other indications.

Regulatory  authorities  in  some  jurisdictions,  including  the  United  States  and  the  European  Union,  may  designate  drugs  for  relatively  small  patient
populations  as  orphan  drugs.  Under  the  Orphan  Drug  Act,  the  FDA  may  designate  a  drug  as  an  orphan  drug  if  it  is  intended  to  treat  a  rare  disease  or
condition,  which  is  generally  defined  as  a  patient  population  of  fewer  than  200,000  individuals  annually  in  the  United  States.  Similarly,  in  Europe,  a
medicinal product may receive orphan designation under Article 3 of Regulation (EC) 141/2000, as amended. This applies to products that are intended for
a life-threatening or chronically debilitating condition and either the condition affects no more than five in 10,000 persons in the European Union when the
application is made or the product, without the benefits derived from orphan status, would unlikely generate sufficient return in the European Union to
justify the necessary investment. Moreover, in order to obtain orphan designation in the European Union, it is necessary to demonstrate that there exists no
satisfactory method of diagnosis, prevention or treatment of the condition authorized for marketing in the European Union, or if such a method exists, that
the product will be of significant benefit to those affected by the condition. The EMA will reassess whether GRASPA continues to meet the criteria for
orphan  drug  designation  in  the  European  Union  at  the  time  it  reviews  a  marketing  authorization  application  for  the  product.  If  the  EMA  considers  that
GRASPA  no  longer  meets  these  criteria,  for  example,  because  it  does  not  offer  a  significant  benefit  over  existing  therapies,  it  may  revoke  GRASPA’s
orphan drug designation prior to approval.

The EMA has granted orphan drug designation for GRASPA for the treatment of pancreatic cancer, ALL and AML, and the FDA has granted orphan drug
designation  for  eryaspase  for  the  same  indications.  We  may  seek  orphan  drug  designation  for  our  other  product  candidates,  and  with  respect  to  other
indications. Generally, if a drug with an orphan drug designation subsequently receives the first marketing approval for the indication for which it has such
designation, the drug is entitled to a period of marketing exclusivity, which precludes the FDA from approving another marketing application for the same
drug for that time period or the EMA or any other medicines regulator in the European Union from approving a similar medicinal product. The applicable
period is seven years in the United States and usually 10 years in the European Union. The European Union exclusivity period can be reduced to six years
if a drug no longer meets the criteria for orphan drug designation or if the drug is sufficiently profitable so that market exclusivity is no longer justified.
This exclusivity period may increase to 12 years if, among other things, the MAA includes the results of studies from an agreed pediatric investigation
plan. Orphan drug exclusivity may be lost if the FDA or EMA determines that the request for

13

designation was materially defective or if the manufacturer is unable to assure sufficient quantity of the drug to meet the needs of patients with the rare
disease or condition.

Even  if  we  obtain  orphan  drug  exclusivity  for  a  product  candidate,  that  exclusivity  may  not  effectively  protect  the  candidate  from  competition  because
different  drugs  can  be  approved  for  the  same  condition.  Even  after  an  orphan  drug  is  approved,  the  applicable  regulatory  authority  can  subsequently
approve another drug for the same condition if it concludes that the later drug is clinically superior in that it is shown to be safer, more effective or makes a
major contribution to patient care. Similarly, if our competitors are able to obtain orphan product exclusivity for their products in the same indications for
which we are developing our product candidates, we may not be able to have our products approved by the applicable regulatory authority for a significant
period of time.

In the European Union, GRASPA contains a known active substance, which would undermine its data and marketing exclusivities; however, this will
not affect GRASPA’s orphan product exclusivity.

In the European Union, data exclusivity refers to the period of time during which another company cannot refer to our data held in the authority’s files in
support of its marketing authorization. The subsequent market exclusivity refers to the period of time during which another company may use our data in
support of its marketing authorization for a generic, hybrid or biosimilar product, but the product in question may not be placed on the market. For products
containing  new  active  substances,  this  effectively  prevents  certain  products,  such  as  generics  and  similar  biological  products,  from  being  placed  on  the
market during the combined data and marketing exclusivity period. This combined period usually lasts for 10 years from the date of approval of the product
containing the new active substance.

Because the active ingredient in GRASPA is not a new active substance, the 10-year period of protection against generics and similar biological products is
undermined.  Competitors  developing  such  products  could  receive  European  Union  marketing  authorizations  and  place  their  products  on  the  European
Union market within 10 years of GRASPA’s own marketing authorization, if obtained.

However, if we still have orphan drug designation for GRASPA in the treatments of pancreatic cancer, ALL and AML in Europe at the time we receive
marketing  approval  from  the  EMA  in  these  indications,  we  would  still  benefit  from  the  independent  period  of  market  exclusivity  afforded  to  orphan
products. In the European Union, this is usually a period of 10 years from the date of marketing approval. The exclusivity period can be reduced to six
years  if  a  drug  no  longer  meets  the  criteria  for  orphan  drug  designation  or  if  the  drug  is  sufficiently  profitable  so  that  market  exclusivity  is  no  longer
justified.  The  exclusivity  period  may  increase  to  12  years  if,  among  other  things,  the  MAA  includes  the  results  of  studies  from  an  agreed  pediatric
investigation plan. During the orphan exclusivity period, regulators should not accept or approve applications for the approval of a similar medicine for the
same  therapeutic  indication,  unless  the  second  product  is  demonstrably  safer,  more  effective  or  otherwise  clinically  superior.  Regulators  may  approve
different products for the same condition as GRASPA.

We rely on third parties to assist in our discovery and development activities, and the loss of any of our relationships with research institutions could
hinder our product development prospects.

We currently have and expect to continue to depend on collaborations with public and private research institutions to conduct some of our early-stage drug
discovery activities. If we are unable to enter into research collaborations with these institutions, or if any one of these institutions fails to work efficiently
with us, the research, development or marketing of our product candidates planned as part of the research collaboration could be delayed or canceled. In the
event a research agreement is terminated or we become no longer in a position to renew the arrangement under acceptable conditions, our drug discovery
and development activities may also be delayed.

We rely on third parties to conduct our clinical trials and perform data collection and analysis, which may result in costs and delays that prevent us
from successfully commercializing our product candidates.

We rely, and will rely in the future, on medical institutions, clinical investigators, CROs, contract laboratories and collaborators to perform data collection
and analysis and to carry out our clinical trials.

For  example,  in  June  2019,  we  entered  in  an  exclusive  worldwide  license  agreement  with  SQZ  Biotechnologies  pursuant  to  which  we  and  SQZ
Biotechnologies will focus on the development of novel red blood cell-based therapeutics for the treatment of immuno-oncology and tolerance induction.
Our other main subcontractors and key partners include Etablissement Français du Sang, the American Red Cross, the New York Blood Center, Medac
GmbH and the German Red Cross Blood Donor Service.

Our development activities or clinical trials conducted in reliance on third parties may be delayed, suspended, or terminated if:

•

the third parties do not devote a sufficient amount of time or effort to our activities or otherwise fail to successfully carry out their contractual
duties or to meet regulatory obligations or expected deadlines;

• we replace a third party; or

14

•

the  quality  or  accuracy  of  the  data  obtained  by  third  parties  is  compromised  due  to  their  failure  to  adhere  to  clinical  protocols,  regulatory
requirements, or for other reasons.

We generally would not have the ability to control the performance of third parties in their conduct of development activities. In the event of a default,
bankruptcy or shutdown of, or a dispute with, a third party, we may be unable to enter into a new agreement with another third party on commercially
acceptable terms. Further, third-party performance failures may increase our development costs, delay our ability to obtain regulatory approval, and delay
or  prevent  the  commercialization  of  our  product  candidates.  In  addition,  our  third-party  agreements  usually  contain  a  clause  limiting  such  third  party’s
liability, such that we may not be able to obtain full compensation for any losses we may incur in connection with the third party’s performance failures.
While we believe that there are numerous alternative sources to provide these services, in the event that we seek such alternative sources, we may not be
able to enter into replacement arrangements without incurring delays or additional costs.

We may enter into collaboration agreements with third parties for the development and commercialization of our product candidates, which may affect
our ability to generate revenues.

We  have  limited  capabilities  for  product  development  and  may  seek  to  enter  into  collaborations  with  third  parties  for  the  development  and  potential
commercialization  of  our  product  candidates.  For  example,  in  June  2019,  we  entered  into  a  collaboration  with  SQZ  Biotechnologies  to  focus  on  the
development of novel red blood-cell based therapeutics for the treatment of immuno-oncology and tolerance induction. Should we seek to collaborate with
any additional third parties with respect to a prospective development program, we may not be able to locate a suitable collaborator and may not be able to
enter  into  an  agreement  on  commercially  reasonable  terms  or  at  all.  Even  if  we  succeed  in  securing  collaborators  for  the  development  and
commercialization  of  our  product  candidates,  we  will  have  limited  control  over  the  amount  and  timing  that  our  collaborators  may  dedicate  to  the
development or commercialization of our product candidates. These collaborations pose a number of risks, including the following:

•

•

•

•

•

•

collaborators  may  not  have  sufficient  resources  or  decide  not  to  devote  the  necessary  resources  due  to  internal  constraints  such  as  budget
limitations, lack of human resources, or a change in strategic focus;

collaborators may believe our intellectual property is not valid or is unenforceable or the product candidate infringes on the intellectual property
rights of others;

collaborators may dispute their responsibility to conduct development and commercialization activities pursuant to the applicable collaboration,
including the payment of related costs or the division of any revenues;

collaborators may decide to pursue a competitive product developed outside of the collaboration arrangement;

collaborators may not be able to obtain, or believe they cannot obtain, the necessary regulatory approvals; or

collaborators  may  delay  the  development  or  commercialization  of  our  product  candidates  in  favor  of  developing  or  commercializing  another
party’s product candidate.

Thus, collaboration agreements may not lead to development or commercialization of product candidates in the most efficient manner or at all.

Some  collaboration  agreements  are  terminable  without  cause  on  short  notice.  Once  a  collaboration  agreement  is  signed,  it  may  not  lead  to
commercialization of a product candidate. We also face competition in seeking out collaborators. If we are unable to secure new collaborations that achieve
the collaborator’s objectives and meet our expectations, we may be unable to advance our product candidates and may not generate meaningful revenues.

Due  to  our  limited  resources  and  access  to  capital,  our  decisions  to  prioritize  development  of  certain  product  candidates  may  adversely  affect  our
business prospects.

Because we have limited resources and access to capital to fund our operations, we must decide which product candidates to pursue and the amount of
resources to allocate to each. As such, we are currently primarily focused on the development of eryaspase for the treatment of pancreatic cancer and other
solid tumors. Our decisions concerning the allocation of research, collaboration, management and financial resources toward particular compounds, product
candidates  or  therapeutic  areas  may  not  lead  to  the  development  of  viable  commercial  products  and  may  divert  resources  away  from  more  promising
opportunities.  Similarly,  our  potential  decisions  to  delay,  terminate  or  collaborate  with  third  parties  with  respect  to  some  of  our  product  development
programs may also prove not to be optimal and could cause us to miss valuable opportunities. If we do not accurately evaluate the commercial potential or
target  market  for  a  particular  product  candidate,  we  may  relinquish  valuable  rights  to  that  product  candidate  through  collaboration,  licensing  or  other
arrangements in cases in which it would have been more advantageous for us to retain sole development and commercialization rights. If we make incorrect
determinations regarding the market potential of our product candidates or misread trends in the pharmaceutical industry, our business prospects could be
harmed.

15

3.D.4. Risks Related to the Commercialization of Our Product Candidates

Even if we successfully complete clinical trials of our product candidates, those candidates may not be commercialized successfully for other reasons.

Even if we successfully complete clinical trials for one or more of our product candidates and obtain relevant regulatory approvals, those candidates may
not be commercialized for other reasons, including:

•

•

•

•

•

•

•

failing to receive regulatory clearances required to market them as drugs;

being subject to proprietary rights held by others;

failing to obtain clearance from regulatory authorities on the manufacturing of our products;

being difficult or expensive to manufacture on a commercial scale;

having adverse side effects that make their use less desirable;

failing to compete effectively with products or treatments commercialized by competitors; or

failing to show that the long-term benefits of our products exceed their risks.

Even if any of our product candidates are commercialized, they may fail to achieve the degree of market acceptance by physicians, patients, third-party
payors or the medical community in general necessary for commercial success.

Even if the medical community accepts a product as safe and efficacious for its indicated use, physicians may choose to restrict the use of the product if we
are unable to demonstrate that, based on experience, clinical data, side-effect profiles and other factors, our product is preferable to any existing drugs or
treatments. We cannot predict the degree of market acceptance of any product candidate that receives marketing approval, which will depend on a number
of factors, including, but not limited to:

•

•

•

•

•

•

•

the demonstration of the clinical efficacy and safety of the product;

the approved labeling for the product and any required warnings;

the advantages and disadvantages of the product compared to alternative treatments;

our ability to educate the medical community about the safety and effectiveness of the product;

the experience of clinicians with other potential treatments that use red blood cells to deliver therapeutics;

the coverage and reimbursement policies of government and commercial third-party payors pertaining to the product; and

the market price of our product relative to competing treatments.

If we are unable to establish sales, marketing and distribution capabilities for our product candidates, whether it be an internal infrastructure or an
arrangement with a third party, we may not be successful in commercializing those product candidates if and when they are approved.

We  do  not  have  a  sales  or  marketing  infrastructure  and  have  no  experience  in  the  sale,  marketing  or  distribution  of  pharmaceutical  drugs.  To  achieve
commercial success for eryaspase, including in the United States, for the treatment of pancreatic cancer, as well as eryaspase for the treatment of other
indications and any other product candidates for which we may obtain marketing approval, we will need to establish a sales and marketing organization to
market  or  co-promote  those  products.  There  are  risks  involved  with  establishing  our  own  sales,  marketing  and  distribution  capabilities.  For  example,
recruiting  and  training  a  sales  force  in  competition  with  other  pharmaceutical  or  biotechnology  companies  is  expensive  and  time-consuming  and  could
delay any product launch. If the commercial launch of a product candidate for which we recruit a sales force and establish marketing capabilities is delayed
or does not occur for any reason, we would have prematurely or unnecessarily incurred these commercialization expenses. This may be costly, and our
investment would be lost if we cannot retain or reposition our sales and marketing personnel.

Factors that may inhibit our efforts to commercialize products on our own include:

•

•

•

•

our inability to recruit, train and retain adequate numbers of effective sales and marketing personnel;

the  inability  of  sales  personnel  to  obtain  access  to  physicians  and  educate  an  adequate  number  of  physicians  on  the  benefits  of  any  future
products;

the lack of complementary products to be offered by sales personnel, which may put us at a competitive disadvantage relative to companies with
more products; and

unforeseen costs and expenses associated with creating an independent sales and marketing organization.

16

If we are unable to establish our own sales, marketing and distribution capabilities and enter into arrangements with third parties to perform these services,
our revenue and our profitability, if any, are likely to be lower than if we were to sell, market and distribute any products that we develop ourselves.

Even if we obtain marketing approvals for our product candidates, the terms of approvals and ongoing regulation of our products may limit how we
market our products, which could materially impair our ability to generate revenues.

Even if we receive regulatory approval for a product candidate, this approval may carry conditions that limit the market for the product or put the product at
a competitive disadvantage relative to alternative therapies. For instance, a regulatory approval may limit the indicated uses for which we can market a
product or the patient population that may utilize the product or may be required to carry a warning in its labeling and on its packaging. Products with
boxed warnings are subject to more restrictive advertising regulations than products without such warnings. These restrictions could make it more difficult
to  market  any  product  candidate  effectively.  Accordingly,  assuming  we  receive  marketing  approval  for  one  or  more  of  our  product  candidates,  we  will
continue to expend time, money and effort in all areas of regulatory compliance.

Government  restrictions  on  pricing  and  reimbursement,  as  well  as  other  healthcare  payor  cost-containment  initiatives,  may  negatively  impact  our
ability to generate revenues even if we obtain regulatory approval to market a product.

Our  ability  to  commercialize  any  products  successfully  also  will  depend  in  part  on  the  extent  to  which  coverage  and  adequate  reimbursement  for  these
products  and  related  treatments  will  be  available  from  government  health  administration  authorities,  private  health  insurers  and  other  organizations.
Government authorities and other third-party payors, such as private health insurers and health maintenance organizations, determine which medications
they will cover and establish reimbursement levels. Assuming we obtain coverage for a given product by a third-party payor, the resulting reimbursement
payment  rates  may  not  be  adequate  or  may  require  co-payments  that  patients  find  unacceptably  high.  Patients  who  are  prescribed  medications  for  the
treatment of their conditions, and their prescribing physicians, generally rely on third-party payors to reimburse all or part of the costs associated with their
prescription drugs. Patients are unlikely to use our products unless coverage is provided and reimbursement is adequate to cover all or a significant portion
of the cost of our products. Therefore, coverage and adequate reimbursement is critical to new product acceptance. Coverage decisions may depend upon
clinical  and  economic  standards  that  disfavor  new  drug  products  when  more  established  or  lower  cost  therapeutic  alternatives  are  already  available  or
subsequently become available.

Government authorities and other third-party payors are developing increasingly sophisticated methods of controlling healthcare costs, such as by limiting
coverage and the amount of reimbursement for particular medications. Increasingly, third-party payors are requiring that drug companies provide them with
predetermined discounts from list prices as a condition of coverage, are using restrictive formularies and preferred drug lists to leverage greater discounts in
competitive classes and are challenging the prices charged for medical products. In addition, in the United States, federal programs impose penalties on
drug manufacturers in the form of mandatory additional rebates and/or discounts if commercial prices increase at a rate greater than the Consumer Price
Index-Urban, and these rebates and/or discounts, which can be substantial, may impact our ability to raise commercial prices. Further, no uniform policy
requirement  for  coverage  and  reimbursement  for  drug  products  exists  among  third-party  payors  in  the  United  States.  Therefore,  coverage  and
reimbursement for drug products can differ significantly from payor to payor. As a result, the coverage determination process is often a time-consuming
and costly process that will require us to provide scientific and clinical support for the use of our products to each payor separately, with no assurance that
coverage and adequate reimbursement will be applied consistently or obtained in the first instance.

The continuing efforts of governments, insurance companies, managed care organizations and other payors of healthcare costs to contain or reduce costs of
healthcare may negatively affect our commercialization prospects, including:

•

•

•

•

our ability to set a price we believe is fair for our products, if approved;

our ability to obtain and maintain market acceptance by the medical community and patients;

our ability to generate revenues and achieve profitability; and

the availability of capital.

We cannot be sure that coverage and reimbursement will be available for any potential product candidate that we may commercialize and, if reimbursement
is available, what the level of reimbursement will be. Coverage and reimbursement may impact the demand for, or the price of, any product candidate for
which we obtain marketing approval. If coverage and reimbursement are not available or reimbursement is available only to limited levels, we may not
successfully commercialize any product candidate for which we obtain marketing approval.

In  the  United  States,  the  ACA  is  significantly  impacting  the  provision  of,  and  payment  for,  healthcare.  Various  provisions  of  the  ACA  are  designed  to
expand Medicaid eligibility, subsidize insurance premiums, provide incentives for businesses to provide healthcare

17

benefits,  prohibit  denials  of  coverage  due  to  pre-existing  conditions,  establish  health  insurance  exchanges,  and  provide  additional  support  for  medical
research. With regard to pharmaceutical products specifically, the ACA, among other things, expanded and increased industry rebates for drugs covered
under Medicaid programs and made changes to the coverage requirements under the Medicare prescription drug benefit.

There have been executive, judicial and Congressional challenges to certain aspects of the ACA. For example, since January 2017, President Trump signed
several Executive Orders and other directives designed to delay the implementation of certain provisions of the ACA or otherwise circumvent some of the
requirements  for  health  insurance  mandated  by  the  ACA.  Concurrently,  the  U.S.  Congress  has  considered  legislation  that  would  repeal  or  repeal  and
replace all or part of the ACA. While Congress has not passed comprehensive repeal legislation, several bills affecting the implementation of certain taxes
under the ACA have been signed into law. Legislation enacted in 2017, informally titled the Tax Cuts and Jobs Act, or the Tax Act, included a provision
which repealed, effective January 1, 2019, the tax-based shared responsibility payment imposed by the ACA on certain individuals who fail to maintain
qualifying  health  coverage  for  all  or  part  of  a  year  that  is  commonly  referred  to  as  the  “individual  mandate.”  The  2020  federal  spending  package
permanently  eliminated,  effective  January  1,  2020,  the  ACA-mandated  “Cadillac”  tax  on  high-cost  employer-sponsored  health  coverage  and  medical
device  tax  and,  effective  January  1,  2021,  also  eliminates  the  health  insurer  tax.  The  Bipartisan  Budget  Act  of  2018,  or  the  BBA,  among  other  things,
amended  the  ACA,  effective  January  1,  2019,  to  increase  from  50  percent  to  70  percent  the  point-of-sale  discount  that  is  owed  by  pharmaceutical
manufacturers who participate in Medicare Part D and to close the coverage gap in most Medicare drug plans, commonly referred to as the “donut hole.”
On December 14, 2018, a Texas U.S. District Court Judge ruled that ACA is unconstitutional in its entirety because the “individual mandate” was repealed
by Congress as part of the Tax Act. Additionally, on December 18, 2019, the U.S. Court of Appeals for the 5th Circuit upheld the District Court ruling that
the individual mandate was unconstitutional and remanded the case back to the District Court to determine whether the remaining provisions of the ACA
are invalid as well. The U.S. Supreme Court is currently reviewing this case, although it is uncertain when a decision will be made. Although the U.S.
Supreme  Court  has  yet  ruled  on  the  constitutionality  of  the  ACA,  on  January  28,  2021,  President  Biden  issued  an  executive  order  to  initiate  a  special
enrollment period from February 15, 2021 through May 15, 2021 for purposes of obtaining health insurance coverage through the ACA marketplace. The
executive  order  also  instructs  certain  governmental  agencies  to  review  and  reconsider  their  existing  policies  and  rules  that  limit  access  to  healthcare,
including  among  others,  reexamining  Medicaid  demonstration  projects  and  waiver  programs  that  include  work  requirements,  and  policies  that  create
unnecessary barriers to obtaining access to health insurance coverage through Medicaid or the ACA. It is also unclear how the Supreme Court ruling, other
litigation and healthcare reform measures of the Biden administration will impact ACA and our business.

In addition, both the Budget Control Act of 2011 and the American Taxpayer Relief Act of 2012 have instituted, among other things, mandatory reductions
in Medicare payments to certain providers. The Budget Control Act of 2011, among other things, includes reductions to Medicare payments to providers of
2% per fiscal year, which went into effect on April 1, 2013 and, due to subsequent legislative amendments to the statute will remain in effect through 2030,
except for a temporary suspension from May 1, 2020 through March 31, 2021 due to the COVID-19 pandemic, unless additional Congressional action is
taken. On January 2, 2013, the American Taxpayer Relief Act of 2012 was signed into law, which, among other things, reduced Medicare payments to
several providers, including hospitals, and increased the statute of limitations period for the government to recover overpayments to providers from three to
five years. Additional legislative proposals to reform healthcare and government insurance programs, along with the trend toward managed healthcare in
the United States, could influence the purchase of medicines and reduce reimbursement and/or coverage of our product candidates, if approved.

Recently, there has been heightened governmental scrutiny over the manner in which manufacturers set prices for their marketed products. Such scrutiny
has resulted in several recent U.S. Congressional inquiries and proposed and enacted federal and state legislation designed to, among other things, bring
more transparency to drug pricing, review the relationship between pricing and manufacturer patient programs, reduce the costs of drugs under Medicare
and  reform  government  program  reimbursement  methodologies  for  drug  products.  At  the  federal  level,  the  Trump  administration’s  budget  proposal  for
fiscal year 2021 included a $135 billion allowance to support legislative proposals seeking to reduce drug prices, increase competition, lower out-of-pocket
drug  costs  for  patients,  and  increase  patient  access  to  lower-cost  generic  and  biosimilar  drugs.  On  July  24,  2020  and  September  13,  2020,  the  Trump
administration announced several executive orders related to prescription drug pricing that seek to implement several of the administration’s proposals. As
a result, the FDA released a final rule on September 24, 2020, effective November 30, 2020, providing guidance for states to build and submit importation
plans for drugs from Canada. Further, on November 20, 2020, the U.S. Department of Health and Human Services finalized a regulation removing safe
harbor  protection  for  price  reductions  from  pharmaceutical  manufacturers  to  plan  sponsors  under  Part  D,  either  directly  or  through  pharmacy  benefit
managers, unless the price reduction is required by law. The implementation of the rule has been delayed by the Biden administration from January 1, 2022
to January 1, 2023 in response to ongoing litigation. The rule also creates a new safe harbor for price reductions reflected at the point-of-sale, as well as a
safe harbor for certain fixed fee arrangements between pharmacy benefit managers and manufacturers, the implementation of which have also been delayed
pending review by the Biden administration until March 22, 2021. On November 20, 2020, the Centers for Medicare & Medicaid Services, or CMS, issued
an  interim  final  rule  implementing  President  Trump’s  Most  Favored  Nation  executive  order,  which  would  tie  Medicare  Part  B  payments  for  certain
physician-administered drugs to the lowest price paid in other economically advanced countries, effective January 1, 2021. On December 28, 2020, the
United States District Court in Northern

18

California issued a nationwide preliminary injunction against implementation of the interim final rule. The likelihood of implementation of any of the other
Trump administration reform initiatives is uncertain as it is unclear whether the Biden administration will work to reverse these measures or pursue similar
policy initiatives. At the state level, legislatures have increasingly passed legislation and implemented regulations designed to control pharmaceutical and
biological  product  pricing,  including  price  or  patient  reimbursement  constraints,  discounts,  restrictions  on  certain  product  access  and  marketing  cost
disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing.

We expect that the ACA, as well as other healthcare reform measures that may be adopted in the future, may result in more rigorous coverage criteria and
lower  reimbursement,  and  in  additional  downward  pressure  on  the  price  that  we  receive  for  any  approved  product  candidate.  Any  reduction  in
reimbursement  from  Medicare  or  other  government-funded  programs  may  result  in  a  similar  reduction  in  payments  from  private  payors.  The
implementation  of  cost  containment  measures  or  other  healthcare  reforms  may  prevent  us  from  being  able  to  generate  revenue,  attain  profitability  or
commercialize our drugs. Moreover, we cannot predict what healthcare reform initiatives may be adopted in the future.

In some foreign countries, the proposed pricing for a drug must be approved before it may be lawfully marketed. In addition, in some foreign markets, the
pricing  of  prescription  drugs  is  subject  to  government  control  and  reimbursement  may  in  some  cases  be  unavailable.  The  requirements  governing  drug
pricing vary widely from country to country. For example, the European Union provides options for its member states to restrict the range of medicinal
products  for  which  their  national  health  insurance  systems  provide  reimbursement  and  to  control  the  prices  of  medicinal  products  for  human  use.  A
member state may approve a specific price for the medicinal product, may refuse to reimburse a product at the price set by the manufacturer or may instead
adopt a system of direct or indirect controls on the profitability of the company placing the medicinal product on the market. There can be no assurance that
any  country  that  has  price  controls  or  reimbursement  limitations  for  biopharmaceutical  products  will  allow  favorable  reimbursement  and  pricing
arrangements  for  eryaspase  or  any  of  our  other  product  candidates  that  may  be  approved.  Historically,  biopharmaceutical  products  launched  in  the
European Union do not follow price structures of the United States and generally tend to have significantly lower prices.

We believe that pricing pressures at the federal and state levels in the United States, as well as internationally, will continue and may increase, which may
make it difficult for us to sell our potential product candidates that may be approved in the future at a price acceptable to us or any third parties with whom
we may choose to collaborate. Further, it is possible that additional governmental action is taken in response to the COVID-19 pandemic.

Any of our product candidates for which we obtain marketing approval could be subject to post-marketing restrictions or withdrawal from the market,
and  we  may  be  subject  to  substantial  penalties  if  we  fail  to  comply  with  regulatory  requirements  or  experience  unanticipated  problems  with  our
products following approval.

Any  of  our  product  candidates  for  which  we  obtain  marketing  approval,  as  well  as  the  manufacturing  processes,  post-approval  studies  and  measures,
labeling, advertising and promotional activities for such products, among other things, will be subject to continual requirements of and review by the EMA,
FDA and other regulatory authorities. These requirements include submissions of safety and other post-marketing information and reports, registration and
listing requirements, requirements relating to manufacturing, quality control, quality assurance and corresponding maintenance of records and documents,
requirements  regarding  the  distribution  of  samples  to  physicians  and  recordkeeping.  Even  if  marketing  approval  of  a  product  candidate  is  granted,  the
approval may be subject to limitations on the indicated uses for which the product may be marketed or to the conditions of approval, including the FDA
requirement to implement a REMS to ensure that the benefits of a drug or biological product outweigh its risks.

The EMA and FDA may also impose requirements for costly post-marketing studies or clinical trials and surveillance to monitor the safety or efficacy of a
product, such as long-term observational studies on natural exposure. The FDA and other agencies, including the Department of Justice, closely regulate
and monitor the post-approval marketing and promotion of products to ensure that they are manufactured, marketed and distributed only for the approved
indications  and  in  accordance  with  the  provisions  of  the  approved  labeling.  The  EMA  and  FDA  impose  stringent  restrictions  on  manufacturers’
communications  regarding  off-label  use  and  if  we  do  not  market  any  of  our  product  candidates  for  which  we  receive  marketing  approval  for  only  their
approved indications, we may be subject to warnings or enforcement action for off-label marketing. Violation of the Federal Food, Drug and Cosmetic Act,
or FDCA, and other statutes, including the civil False Claims Act, relating to the promotion and advertising of prescription drugs may lead to investigations
or allegations of violations of federal and state health care fraud and abuse laws and state consumer protection laws.

19

Post marketing regulations in the EU and in State Members also require specifications regarding promotion and advertising of prescription drugs.

The EMA, FDA and other regulatory agencies actively enforce the laws and regulations prohibiting the promotion of drugs for off-label uses. If we are
found to have improperly promoted off-label use, we may become subject to significant liability.

The  EMA,  FDA  and  other  regulatory  agencies  strictly  regulate  the  promotional  claims  that  may  be  made  about  prescription  drug  products,  such  as  our
product candidates, if approved. In particular, a product may not be promoted for uses that are not approved by the EMA, FDA or such other regulatory
agencies as reflected in the product’s approved labeling. However, we may share truthful and not misleading information that is otherwise consistent with
the  product’s  approved  labeling.  For  example,  if  we  receive  marketing  approval  for  eryaspase,  physicians,  in  their  professional  medical  judgment,  may
nevertheless prescribe eryaspase to their patients in a manner that is inconsistent with the approved label. If we are found to have promoted such off-label
use,  we  may  become  subject  to  significant  liability  under  the  FDCA  and  other  statutory  authorities,  such  as  laws  prohibiting  false  claims  for
reimbursement.  The  federal  government  has  levied  large  civil  and  criminal  fines  against  companies  for  alleged  improper  promotion  and  has  enjoined
several companies from engaging in off-label promotion. The FDA has also requested that companies enter into consent decrees or permanent injunctions
under which specified promotional conduct is changed or curtailed. If we cannot successfully manage the promotion of our products, if approved, we could
become subject to significant liability, which would harm our reputation and negatively impact our financial condition. In addition to European legislation,
each Member State of the European Union also enforce specific laws regarding the regulation of promotional claims which may change depending of the
country marketing.

Our future growth depends, in part, on our ability to penetrate foreign markets, where we would be subject to additional regulatory burdens and other
risks and uncertainties.

Our future profitability will depend, in part, on our ability to commercialize our product candidates in markets within and without the United States and
Europe. If we commercialize our product candidates in foreign markets, we would be subject to additional risks and uncertainties, including:

•

•

•

•

•

•

•

•

economic weakness, including inflation, or political instability in particular economies and markets;

the burden of complying with complex and changing foreign regulatory, tax, accounting and legal requirements, many of which vary between
countries;

different medical practices and customs in foreign countries affecting acceptance in the marketplace;

tariffs and trade barriers;

other trade protection measures, import or export licensing requirements or other restrictive actions by U.S. or foreign governments;

longer accounts receivable collection times;

longer lead times for shipping;

compliance with tax, employment, immigration and labor laws for employees living or traveling abroad;

• workforce uncertainty in countries where labor unrest is common;

•

•

•

•

•

•

language barriers for technical training;

reduced protection of intellectual property rights in some foreign countries, and related prevalence of generic alternatives to therapeutics;

foreign currency exchange rate fluctuations and currency controls;

differing foreign reimbursement landscapes;

uncertain and potentially inadequate reimbursement of our products; and

the interpretation of contractual provisions governed by foreign laws in the event of a contract dispute.

Foreign  sales  of  our  products  could  also  be  adversely  affected  by  the  imposition  of  governmental  controls,  political  and  economic  instability,  trade
restrictions and changes in tariffs.

Adverse market and economic conditions may exacerbate certain risks associated with commercializing our product candidates.

Future  sales  of  our  product  candidates,  it  they  are  approved,  will  be  dependent  on  purchasing  decisions  of  and  reimbursement  from  government  health
administration authorities, distributors and other organizations. As a result of adverse conditions affecting the

20

global economy and credit and financial markets, including disruptions due to political instability or otherwise, these organizations may defer purchases,
may  be  unable  to  satisfy  their  purchasing  or  reimbursement  obligations,  or  may  delay  payment  for  eryaspase  or  any  of  our  product  candidates  that  are
approved for commercialization in the future. In addition, there have been concerns for the overall stability and suitability of the euro as a single currency
given the economic and political challenges facing individual Eurozone countries. Continuing deterioration in the creditworthiness of Eurozone countries,
the withdrawal of one or more member countries from the European Union, or the failure of the euro as a common European currency or an otherwise
diminished value of the euro could materially and adversely affect our future product revenue from European sales of our products.

3.D.5. Risks Related to the Production and Manufacturing of our Product Candidates and Future Products, if Any

Our production capacity could prove insufficient for our needs.

Our  production  capacity  may  prove  insufficient  in  the  future  to  meet  the  growth  of  our  business,  including  producing  sufficient  quantities  of  product
candidates for preclinical studies, clinical trials and, ultimately, our customers and distributors. For instance, we have initiated a Phase 3 clinical trial in
Europe and the United States in patients with second-line metastatic pancreatic cancer. Although we have extended our production capacity for our current
clinical trials and a potential commercial launch, if approved, with the construction of a manufacturing facility in Princeton, New Jersey and the extension
of our manufacturing facility in Lyon, France, there is no guarantee that we will or have properly estimated our required manufacturing capacities in or
outside of the United States and Europe or that the third parties we rely on to provide required machinery and materials for the manufacturing process will
be able to perform on our proposed timelines or meet our manufacturing demands, if at all. Also, if we must increase production capacity for any reason,
we may need to make considerable investments that could lead to significant financing needs or require us to enter into subcontracting agreements in order
to outsource part of the production.

We may not have access to the raw materials and other components, including asparaginase and red blood cells, necessary for the manufacturing of
our product candidates.

We are dependent on third parties for the supply of various materials that are necessary to produce our product candidates for clinical trials.

With respect to eryaspase, we rely on Medac GmbH, or Medac, for the supply of asparaginase. Since we rely on a single-source supplier for asparaginase,
if our agreement with Medac GmbH were to be terminated or if this supplier is unable to meet our demands for asparaginase, we could experience delays in
our  research  or  planned  clinical  trials  or  commercialization.  We  could  be  unable  to  find  alternative  suppliers  of  acceptable  quality,  in  the  appropriate
volumes and at an acceptable cost.

With regard to the supply of red blood cells, we rely on the New York Blood Center and the American Red Cross in the United States and the French Blood
Agency (Établissement Français du Sang) and the German Red Cross Blood Donor Service in Europe. The French Blood Agency (Établissement Français
du Sang)  is  the  sole  operator  in  its  territory  for  blood  transfusions  and  is  in  charge  of  satisfying  national  needs  for  blood  products.  Although  we  have
entered into agreements with the New York Blood Center, the American Red Cross, the French Blood Agency (Établissement Français du Sang) and the
German Red Cross Blood Donor Service related to the supply of those materials, the supply could be reduced or interrupted at any time. In such case, we
may not be able to find other suppliers of acceptable materials in appropriate quantities at an acceptable cost. If we lose key suppliers or the supply of
materials is diminished or discontinued, or in the event of a major or international crisis impacting blood banks and the practice of blood donation, we may
not be able to continue to develop, manufacture and market our product candidates or products in a timely and competitive manner.

In addition, these materials are subject to stringent manufacturing processes and rigorous testing. Delays in the completion and validation of facilities and
manufacturing  processes  of  these  materials  could  adversely  affect  our  ability  to  complete  trials  and  commercialize  our  products  in  a  cost-effective  and
timely manner. If we encounter difficulties in the supply of these materials, chemicals or biological products, or if we were not able to maintain our supply
agreements or establish new supply agreements in the future, our product development and our business prospects could be significantly compromised.

Our manufacturing facilities are subject to significant government regulations and approvals. If we or our third-party manufacturers fail to comply
with these regulations or maintain these approvals, our business will be materially harmed.

We currently manufacture our product candidates for use in Europe in our facility in Lyon, France. In addition, we have entered into agreements with the
American Red Cross, the French Blood Agency (Établissement Français du Sang), the German Red Cross Blood Donor Service and the New York Blood
Center to produce eryaspase for use in our clinical trials in Europe and in the United States and we built a U.S. manufacturing facility in Princeton, New
Jersey, which began producing eryaspase for use in our U.S clinical trials in the fourth quarter of 2019. We also have an agreement with Medac to provide
us  with  L-asparaginase  for  use  in  our  production  of  eryaspase.  We  and  our  third-party  manufacturers  are  subject  to  ongoing  regulation  and  periodic
inspection by the EMA, FDA and

21

other regulatory bodies to ensure compliance with current Good Manufacturing Practices, or cGMP, as part of our clinical trials. Any failure to follow and
document our or their adherence to such cGMP regulations or other regulatory requirements may lead to significant delays in the availability of products
for commercial sale or clinical trials, may result in the termination of or a hold on a clinical trial, or may delay or prevent filing or approval of marketing
applications for our products.

Failure  to  comply  with  applicable  regulations  could  also  result  in  the  EMA,  FDA  or  other  applicable  regulatory  authorities  taking  various  actions,
including:

•

•

•

•

•

•

•

levying fines and other civil penalties;

imposing consent decrees or injunctions;

requiring us to suspend or put on hold one or more of our clinical trials;

suspending or withdrawing regulatory approvals;

delaying or refusing to approve pending applications or supplements to approved applications;

requiring us to suspend manufacturing activities or product sales, imports or exports;

requiring us to communicate with physicians and other customers about concerns related to actual or potential safety, efficacy, and other issues
involving our products;

• mandating product recalls or seizing products;

•

•

imposing operating restrictions; and

seeking criminal prosecutions.

Any of the foregoing actions could be detrimental to our reputation, business, financial condition or operating results. Furthermore, our key suppliers may
not continue to be in compliance with all applicable regulatory requirements, which could result in our failure to produce our products on a timely basis and
in the required quantities, if at all. In addition, before any additional products would be considered for marketing approval in the United States, Europe or
elsewhere, our suppliers will have to pass an audit by the applicable regulatory agencies. We are dependent on our suppliers’ cooperation and ability to pass
such audits, and the audits and any audit remediation may be costly. Failure to pass such audits by us or any of our suppliers would affect our ability to
commercialize our product candidates in the United States, Europe or elsewhere.

Our production costs may be higher than we currently estimate.

We manufacture our product candidates according to manufacturing best practices applicable to drugs for clinical trials and to specifications approved by
the applicable regulatory authorities. If any of our products are found to be non-compliant, we would be required to manufacture the product again, which
would entail additional costs and may prevent delivery of the product to patients on time.

Other risks inherent in the production process may have the same effect, such as:

•

•

•

•

•

•

•

contamination of the controlled atmosphere area;

unusable premises and equipment;

new regulatory requirements requiring a partial and/or extended stop to the production unit to meet the requirements;

unavailable qualified personnel;

power failure of extended duration;

logistical error; and

rupture  in  the  cold  chain,  which  is  a  system  for  storing  and  transporting  blood  and  blood  products  within  the  correct  temperature  range  and
conditions.

In addition, a rise in direct or indirect energy rates may increase product manufacturing and logistical costs. Any of these risks, should they occur, could
disrupt our activities and compromise our financial position, results, reputation or growth.

22

3.D.6. Risks Related to Our Employees and Business

We may encounter difficulties in managing our growth, which could disrupt our operations.

As of December 31, 2020, we had 206 employees, and we expect to increase our number of employees and the scope of our operations. To manage our
development  and  expansion,  including  the  potential  commercialization  of  our  product  candidates  in  Europe  and  the  United  States,  we  will  need  to
implement  and  improve  our  managerial,  operational  and  financial  systems,  expand  our  facilities  and  continue  to  recruit  and  train  additional  qualified
personnel. Also, our management may need to divert a disproportionate amount of its attention away from its day-to-day activities and devote a substantial
amount of time to managing these development activities. Due to our limited resources, we may not be able to effectively manage the expansion of our
operations or recruit and train additional qualified personnel. This may result in weaknesses in our infrastructure, give rise to operational mistakes, loss of
business opportunities, loss of employees and reduced productivity among remaining employees. The physical expansion of our operations may lead to
significant costs and may divert financial resources from other projects, such as the development of our product candidates. If our management is unable to
effectively  manage  our  expected  development  and  expansion,  our  expenses  may  increase  more  than  expected,  our  ability  to  generate  or  increase  our
revenue could be reduced and we may not be able to implement our business strategy. Our future financial performance and our ability to commercialize
our  product  candidates,  if  approved,  and  compete  effectively  will  depend,  in  part,  on  our  ability  to  effectively  manage  the  future  development  and
expansion of our company.

We depend on qualified management personnel and our business could be harmed if we lose key personnel and cannot attract new personnel.

Our success depends to a significant degree upon the technical and management skills of our senior management team. The loss of the services of any of
these  individuals  could  have  a  material  adverse  effect  on  our  ability  to  achieve  our  corporate  objectives  and  successfully  execute  our  business  plan.
Although  we  have  implemented  an  executive  compensation  policy  that  includes  variable  compensation  based  on  performance  as  well  as  share-based
compensation plans for the benefit of our key employees, we cannot guarantee that this policy will be sufficient to retain these key employees. Our success
also  will  depend  upon  our  ability  to  attract  and  retain  additional  qualified  management,  marketing,  technical,  and  sales  executives  and  personnel.  We
compete for key personnel against numerous companies, including larger, more established companies with significantly greater financial resources than
we  possess.  There  can  be  no  assurance  that  we  will  be  successful  in  attracting  or  retaining  such  personnel,  and  the  failure  to  do  so,  could  harm  our
operations and our growth prospects.

Our failure to maintain certain tax benefits applicable to French biopharmaceutical companies may adversely affect our results of operations, our cash
flows and our financial condition.

As a French biopharmaceutical company, we have benefited from certain tax advantages, including, for example, the CIR, which is a French tax credit
aimed at stimulating research and development. The CIR can be offset against French corporate income tax due and the portion in excess, if any, may be
refunded. The CIR is calculated based on our claimed amount of eligible research and development expenditures in France and amounted to €4.4 million,
€3.9 million and €3.4 million for the years ended December 31, 2018, 2019 and 2020, respectively. The French tax authorities, with the assistance of the
Research and Higher Education Ministry, may audit each research and development program in respect of which a CIR benefit has been claimed and assess
whether such program qualifies in its view for the CIR benefit. The French tax authorities may challenge our eligibility for, or our calculation of, certain tax
reductions or deductions in respect of our research and development activities. Should the French tax authorities be successful, the CIR representing the
majority of the our operating revenues (74% of revenues for the year ended December 31, 2019 and more than 90% for the years ended December 31, 2018
and December 31, 2020), our credits may be reduced, which would have a negative impact on our results of operations and future cash flows. We believe,
due to the nature of our business operations, that we will continue to be eligible to receive the CIR tax credit. However, if the French Parliament decides to
eliminate,  or  to  reduce  the  scope  or  the  rate  of,  the  CIR  benefit,  either  of  which  it  could  decide  to  do  at  any  time,  our  results  of  operations  could  be
adversely affected.

The COVID-19 coronavirus could adversely impact our business, including our clinical trials.

In December 2019, a novel strain of coronavirus, COVID-19, was reported to have surfaced in Wuhan, China. Since then, the COVID-19 coronavirus has
spread globally, including to France, the United States and many of the countries in which we have planned or ongoing clinical trials. If the COVID-19
coronavirus continues to spread in France and the United States, we may experience disruptions that could severely impact our business and clinical trials,
including:

•

•

delays or difficulties in enrolling patients in our clinical trials;

delays or difficulties in clinical site initiation, including difficulties in recruiting clinical site investigators and clinical site staff;

23

•

•

•

diversion of healthcare resources away from the conduct of clinical trials, including the diversion of hospitals serving as our clinical trial sites
and hospital staff supporting the conduct of our clinical trials;

interruption of key clinical trial activities, such as clinical trial site monitoring, due to limitations on travel imposed or recommended by federal
or state governments, employers and others; and

limitations  in  employee  resources  that  would  otherwise  be  focused  on  the  conduct  of  our  clinical  trials,  including  because  of  sickness  of
employees or their families or the desire of employees to avoid contact with large groups of people.

We experienced a 3 to 4 months delay in patient enrollment in the TRYbeCA1 study which has been completed to date, and therefore in the intermediary
analysis of this study. With the exception of this delay, we did not suffer any delay in other studies that would be related to the economic and health effects
of the COVID-19 pandemic.

For our clinical trials that are being conducted in countries which are experiencing heightened impact from the COVID-19 coronavirus, in addition to the
risks listed above, we may also experience the following adverse impacts:

•

•

•

•

•

•

delays in receiving approval from local regulatory authorities to initiate our planned clinical trials;

delays in clinical sites receiving the supplies and materials needed to conduct our clinical trials;

interruption in global shipping that may affect the transport of clinical trial materials, such as investigational drug product and comparator drugs
used in our clinical trials;

changes in local regulations as part of a response to the COVID-19 coronavirus outbreak which may require us to change the ways in which our
clinical trials are conducted, which may result in unexpected costs, or to discontinue the clinical trials altogether;

delays  in  necessary  interactions  with  local  regulators,  ethics  committees  and  other  important  agencies  and  contractors  due  to  limitations  in
employee resources or forced furlough of government employees; and

refusal of the EMA or the FDA to accept data from clinical trials in these affected geographies.

The global outbreak of the COVID-19 coronavirus and the virus variants continues to rapidly evolve. The extent to which the COVID-19 coronavirus may
impact our business and clinical trials will depend on future developments, which are highly uncertain and cannot be predicted with confidence, such as the
ultimate geographic spread of the disease, the duration of the outbreak, travel restrictions and social distancing in the European Union, the United States
and other countries, business closures or business disruptions and the effectiveness of actions taken in the European Union, the United States and other
countries to contain and treat the disease such as the lockdown measures put in place in most countries. Further, the adverse effect on the financial markets,
on  the  market  price  of  our  ADSs  and/or  ordinary  shares,  is  unknown.  To  date,  the  global  economy  remains  heavily  impacted  by  the  outbreak  of  the
COVID-19 coronavirus. We believe that the recently emerged variants of the Covid-19 coronavirus are not likely to modify the risks as described above..

Our business may become subject to economic, political, regulatory and other risks associated with international operations.

We are a company based in France with international operations, including in the United States. A significant portion of our suppliers and collaborative and
clinical trial relationships are located outside the United States. Accordingly, our future results could be harmed by a variety of factors, including:

◦

◦

◦

◦

◦

◦

◦

◦

◦

economic weakness, including inflation, or political instability in particular non-U.S. economies and markets;

differing regulatory requirements for drug approvals in non-U.S. countries;

differing jurisdictions could present different issues for securing, maintaining or obtaining freedom to operate in such jurisdictions;

potentially reduced protection for intellectual property rights;

difficulties in compliance with non-U.S. laws and regulations;

changes in non-U.S. regulations and customs, tariffs and trade barriers;

changes in non-U.S. currency exchange rates of the euro and currency controls;

changes in a specific country's or region's political or economic environment, including the withdrawal of the United Kingdom from the EU;

trade protection measures, import or export licensing requirements or other restrictive actions by U.S. or non-U.S. governments;

24

◦

◦

◦

differing reimbursement regimes and price controls in certain non-U.S. markets;

negative consequences from changes in tax laws;

compliance with tax, employment, immigration and labor laws for employees living or traveling abroad;

◦ workforce uncertainty in countries where labor unrest is more common than in the United States;

◦

◦

◦

difficulties associated with staffing and managing international operations, including differing labor relations;

production shortages resulting from any events affecting raw material supply or manufacturing capabilities abroad; and

business  interruptions  resulting  from  geo-political  actions,  including  war  and  terrorism,  or  natural  disasters  including  earthquakes,  typhoons,
floods and fires, or public health emergencies, such as the novel COVID-19 coronavirus.

Our business may be exposed to foreign exchange risks.

Owing to the international scope of our operations, fluctuations in exchange rates, particularly between the euro and the U.S. dollar, may adversely affect
us. Although we are based in the France, we source research and development, manufacturing, consulting and other services from the United States as well
as other countries outside the European Union. We incur some of our expenses, and may in the future derive revenues, in currencies other than the euro.

We use the euro as our functional currency for our financial communications. However, a significant portion of our expenses, financial assets and liabilities
are  denominated  in  U.S  dollars  and  are  exposed  to  changes  in  foreign  currency  exchange  rates.  We  also  entered  into  a  license  agreement  with  SQZ
Biotechnologies  in  2019  and  any  potential  revenues  pursuant  to  this  agreement  will  be  made  in  U.S.  dollars.  We  do  not  currently  engage  in  hedging
transactions or the use of forward contracts but may in the future in order to minimize the impact of uncertainty in future exchange rates on cash flows. A
deterioration of the U.S dollar of the Euro could reduce our cash and cash equivalents. Refer to "Item 11. Quantitative and Qualitative Disclosures About
Market Risk" for more information.

As we advance our clinical development in the United States and potentially commercialize our product candidates in that market, we expect to face greater
exposure  to  exchange  rate  risk..  We  cannot  predict  the  impact  of  foreign  currency  fluctuations,  and  foreign  currency  fluctuations  in  the  future  may
adversely affect our financial condition, results of operations and cash flows. Therefore, fluctuations in the exchange rate between the euro and the U.S.
dollar will also affect, among other matters, the value of our ordinary shares and ADSs.

We  may  use  hazardous  chemicals  and  biological  materials  in  our  business.  Any  claims  relating  to  improper  handling,  storage  or  disposal  of  these
materials could be time-consuming and costly.

Our  research  and  development  processes  involve  the  controlled  use  of  hazardous  materials,  including  chemicals  and  biological  materials.  We  cannot
eliminate the risk of accidental contamination or discharge and any resultant injury from these materials. We may be sued for any injury or contamination
that results from our use or the use by third parties of these materials, and our liability may exceed any insurance coverage and our total assets. French and
U.S.  federal,  state,  local  or  foreign  laws  and  regulations  govern  the  use,  manufacture,  storage,  handling  and  disposal  of  these  hazardous  materials  and
specified waste products, as well as the discharge of pollutants into the environment and human health and safety matters. Compliance with environmental
laws and regulations may be expensive and may impair our research and development efforts. If we fail to comply with these requirements, we could incur
substantial  costs,  including  civil  or  criminal  fines  and  penalties,  clean-up  costs  or  capital  expenditures  for  control  equipment  or  operational  changes
necessary  to  achieve  and  maintain  compliance.  In  addition,  we  cannot  predict  the  impact  on  our  business  of  new  or  amended  environmental  laws  or
regulations or any changes in the way existing and future laws and regulations are interpreted and enforced.

Product  liability  and  other  lawsuits  could  divert  our  resources,  result  in  substantial  liabilities  and  reduce  the  commercial  potential  of  our  product
candidates.

Although  we  comply  with  cGMP,  and  Good  Clinical  Practices,  or  GCPs,  the  risk  that  we  may  be  sued  on  product  liability  claims  is  inherent  in  the
development and commercialization of biopharmaceutical products. Side effects of, or manufacturing defects in, products that we develop could result in
the deterioration of a patient’s condition, injury or even death. Our liability could be sought after by patients participating in the clinical trials in the context
of  the  development  of  the  therapeutic  products  tested  and  unexpected  side  effects  resulting  from  the  administration  of  these  products.  For  example,  we
reported  adverse  events  in  our  Phase  2b  clinical  trial  of  second-line  treatment  of  patients  with  metastatic  pancreatic  cancer  compared  to  treatment  with
chemotherapy alone. The percentage of patients with at least one adverse event reported as grade 3 or 4 (i.e., most commonly, increased gamma glutamyl
transferase, neutropenia, deterioration of general health and anemia) amounted to 79% in the eryaspase treatment arm, versus 86% in the control arm, and
the  percentage  of  patients  with  at  least  one  reported  severe  adverse  event  (i.e.,  most  commonly,  deterioration  in  general  health  and  gastrointestinal
hemorrhage) amounted to 45% in the eryaspase treatment arm versus 50% in the control arm.

25

Once a product is approved for sale and commercialized, the likelihood of product liability lawsuits increases. Criminal or civil proceedings might be filed
against us by patients, regulatory authorities, biopharmaceutical companies and any other third party using or marketing our products. These actions could
include claims resulting from acts by our partners, licensees and subcontractors, over which we have little or no control. These lawsuits may divert our
management from pursuing our business strategy and may be costly to defend. In addition, if we are held liable in any of these lawsuits, we may incur
substantial liabilities and may be forced to limit or forgo further commercialization of the affected products.

We maintain product liability insurance coverage for our clinical trials at levels which we believe are appropriate for our clinical trials. Nevertheless, our
insurance coverage may be insufficient to reimburse us for any expenses or losses we may suffer. In addition, in the future, we may not be able to obtain or
maintain sufficient insurance coverage at an acceptable cost or to otherwise protect against potential product or other legal or administrative liability claims
by us or our collaborators, licensees or subcontractors, which could prevent or inhibit the commercial production and sale of any of our product candidates
that  receive  regulatory  approval.  Product  liability  claims  could  also  harm  our  reputation,  which  may  adversely  affect  our  ability  to  commercialize  our
products successfully.

Our  internal  computer  systems,  or  those  of  our  third-party  contractors  or  consultants,  may  fail  or  suffer  security  breaches,  which  could  result  in  a
material disruption of our product development programs.

Despite the implementation of security measures, our internal computer systems and those of our third-party contractors and consultants are vulnerable to
damage  from  computer  viruses,  unauthorized  access,  natural  disasters,  terrorism,  war  and  telecommunication  and  electrical  failures.  While  we  do  not
believe that we have experienced any such system failure, accident or security breach to date, including cybersecurity incidents, if such an event were to
occur and cause interruptions in our operations, it could result in a material disruption of our programs. For example, the loss of clinical trial data for our
product candidates could result in delays in our regulatory approval efforts and significantly increase our costs to recover or reproduce the lost data. To the
extent that any disruption or security breach results in a loss of or damage to our data or applications or other data or applications relating to our technology
or product candidates, or inappropriate disclosure of confidential or proprietary information, we could incur liabilities and the further development of our
product  candidates  could  be  delayed.  As  these  threats  continue  to  evolve,  particularly  around  cybersecurity,  we  may  be  required  to  expend  significant
resources  to  enhance  our  control  environment,  processes,  practices  and  other  protective  measures.  Despite  these  efforts,  such  events  could  materially
adversely affect our business, financial condition or results of operations.

We may acquire businesses or products, or form strategic alliances, in the future, and we may not realize the benefits of such acquisitions.

Our  current  growth  strategy  does  not  involve  plans  to  acquire  companies  or  technologies  facilitating  or  enabling  us  to  access  to  new  medicines,  new
research  projects,  or  new  geographical  areas,  or  enabling  us  to  express  synergies  with  our  existing  operations.  However,  if  such  acquisitions  were  to
become  necessary  in  the  future,  we  may  not  be  able  to  identify  appropriate  targets  or  make  acquisitions  under  satisfactory  conditions,  in  particular,
satisfactory price conditions. In addition, we may be unable to obtain the financing for these acquisitions on favorable terms, which could require us to
finance  these  acquisitions  using  our  existing  cash  resources  that  could  have  been  allocated  to  other  purposes.  If  we  acquire  businesses  with  promising
markets or technologies, we may not be able to realize the benefit of acquiring such businesses if we are unable to successfully integrate them with our
existing operations and company culture. We may encounter numerous difficulties in developing, manufacturing and marketing any new products resulting
from a strategic alliance or acquisition that delay or prevent us from realizing their expected benefits or enhancing our business. We cannot assure you that,
following any such acquisition, we will achieve the expected synergies to justify the transaction.

European data processing is governed by restrictive regulations governing the collection, processing, and cross-border transfer of personal data.

The collection and use of personal data in the European Union is governed by the provisions of the General Data Protection Regulation ((EU) 2016/679), or
GDPR. This legislation imposes requirements relating to having legal bases for processing personal data relating to identifiable individuals and securing
transfers  of  such  data  outside  the  European  Economic  Area  including  to  the  United  States,  providing  information  to  those  individuals  regarding  the
processing of their personal data, keeping personal data secure, having data processing agreements with third parties who process personal data, responding
to  individuals’  requests  to  exercise  their  rights  in  respect  of  their  personal  data,  reporting  security  breaches  involving  personal  data  to  the  competent
national data protection authority and affected individuals, conducting record-keeping and,where applicable, appointing data protection officers, conducting
data protection impact assessments. The GDPR imposes additional responsibilities and liabilities in relation to personal data that we process and we may be
required to put in place additional mechanisms ensuring compliance with the new data protection rules. The GDPR applies across the EEA and, by virtue
of the UK GDPR in the United Kingdom, in a broadly uniform manner. However, the GDPR provides that EEA member states can make their own further
laws and regulations to introduce specific requirements related to the processing of ‘special categories of personal data,’ including personal data related to
health, biometric data used for unique

26

identification purposes and genetic information; as well as personal data related to criminal offences or convictions – in the United Kingdom, the United
Kingdom  Data  Protection  Act  2018  complements  the  UK  GDPR  in  this  regard.  This  fact  may  lead  to  greater  divergence  on  the  law  that  applies  to  the
processing of such data types across the EEA and/or United Kingdom, compliance with which, as and where applicable, may increase our costs and could
increase our overall compliance risk. Such country-specific regulations could also limit our ability to collect, use and share data in the context of our EEA
and/or  United  Kingdom  establishments  (regardless  of  where  any  processing  in  question  occurs),  and/or  could  cause  our  compliance  costs  to  increase,
ultimately having an adverse impact on our business, and harming our business and financial condition. Failure to comply with the requirements of the
GDPR and related national data protection laws of the member states of the European Union may result in substantial fines, other administrative penalties
and  civil  claims  being  brought  against  us,  which  could  have  a  material  adverse  effect  on  our  business,  results  of  operations  and  financial  condition.
Moreover, in some European countries, including France, the hosting of personal health data must be carried out by specifically certified hosting service
providers. The absence or suspension of the appropriate certification of such hosting service provider may adversely affect our business, or even lead to
penalties related to breach of security of personal data.

We are subject to U.S. and certain foreign export and import controls, sanctions, embargoes, anti-corruption laws, and anti-money laundering laws and
regulations. Compliance with these legal standards could impair our ability to compete in domestic and international markets. We can face criminal
liability and other serious consequences for violations, which can harm our business.

We are subject to export control and import laws and regulations, including the U.S. Export Administration Regulations, U.S. Customs regulations, various
economic  and  trade  sanctions  regulations  administered  by  the  U.S.  Treasury  Department’s  Office  of  Foreign  Assets  Controls,  the  U.S.  Foreign  Corrupt
Practices Act of 1977, as amended, the U.S. domestic bribery statute contained in 18 U.S.C. § 201, the U.S. Travel Act, the USA PATRIOT Act, and other
state and national anti-bribery and anti-money laundering laws in the countries in which we conduct activities. Anti-corruption laws are interpreted broadly
and prohibit companies and their employees, agents, contractors, and other collaborators from authorizing, promising, offering, or providing, directly or
indirectly, improper payments or anything else of value to recipients in the public or private sector. We may engage third parties to sell our products sell our
products  outside  the  United  States,  to  conduct  clinical  trials,  and/or  to  obtain  necessary  permits,  licenses,  patent  registrations,  and  other  regulatory
approvals. We have direct or indirect interactions with officials and employees of government agencies or government-affiliated hospitals, universities, and
other organizations. We can be held liable for the corrupt or other illegal activities of our employees, agents, contractors, and other collaborators, even if we
do not explicitly authorize or have actual knowledge of such activities. Any violations of the laws and regulations described above may result in substantial
civil and criminal fines and penalties, imprisonment, the loss of export or import privileges, debarment, tax reassessments, breach of contract and fraud
litigation, reputational harm, and other consequences.

3.D.7. Risks Related to Other Legal Compliance Matters

We are subject to anti-bribery, anti-kickback, fraud and abuse and other healthcare laws and regulations which may require substantial compliance
efforts and could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm and diminished profits and future earnings,
among other penalties.

Healthcare providers, physicians and others will play a primary role in the recommendation and prescription of our products, if approved. Our business
operations  in  the  United  States  and  our  arrangements  with  clinical  investigators,  healthcare  providers,  consultants,  third  party  payors  and  patients  may
expose us to broadly applicable federal and state anti-bribery fraud and abuse and other healthcare laws. These laws may impact, among other things, our
research, proposed sales, marketing and education programs of our product candidates that obtain marketing approval. Restrictions under applicable U.S.
federal, state and foreign healthcare laws and regulations include, but are not limited to, the following:

•

•

•

the U.S. federal Anti-Kickback Statute, which prohibits, among other things, persons or entities from knowingly and willfully soliciting, offering,
receiving or providing remuneration, including any kickback, bribe or rebate, directly or indirectly, in cash or in kind, to induce or reward, or in
return for, either the referral of an individual for, or the purchase or lease, order or recommendation of, any item, good, facility or service, for
which payment may be made under federal healthcare programs such as Medicare and Medicaid;

the U.S. federal civil and criminal false claims laws, including the civil False Claims Act, which can be enforced by individuals, on behalf of the
government, through civil whistleblower or qui tam actions, and civil monetary penalties laws prohibits individuals or entities from, among other
things, knowingly presenting, or causing to be presented, claims for payment that are false or fraudulent or making a false statement to avoid,
decrease, or conceal an obligation to pay money to the federal government;

the  U.S.  federal  Health  Insurance  Portability  and  Accountability  Act  of  1996,  or  HIPAA,  which  created  additional  federal,  civil  and  criminal
statutes that impose criminal and civil liability for, among other things, executing or attempting to execute

27

a scheme to defraud any healthcare benefit program or knowingly and willingly falsifying, concealing or covering up a material fact or making
false statements relating to healthcare matters;

• HIPAA,  as  amended  by  the  Health  Information  Technology  for  Economic  and  Clinical  Health  Act,  or  HITECH,  and  their  implementing
regulations, which impose requirements on certain healthcare providers, health plans and healthcare clearinghouses, known as “covered entities,”
and persons or entities that perform functions or activities that involve individually identifiable health information on behalf of a covered entity,
known as “business associates,” including mandatory contractual terms as well as their covered subcontractors, with respect to safeguarding the
privacy, security and transmission of individually identifiable health information;

• U.S.  federal  transparency  requirements  under  the  Physician  Payments  Sunshine  Act,  enacted  as  part  of  the  ACA,  that  require  applicable
manufacturers  of  covered  drugs,  devices,  biologics  and  medical  supplies  for  which  payment  is  available  under  Medicare,  Medicaid,  or  the
Children’s  Health  Insurance  Program,  with  specific  exceptions,  to  track  and  annually  report  to  the  CMS  payments  and  other  transfers  of  value
provided  to  physicians  (defined  to  include  doctors,  dentists,  optometrists,  podiatrists  and  chiropractors)  and  teaching  hospitals,  and  certain
ownership  and  investment  interests  held  by  physicians  or  their  immediate  family  members.  Beginning  in  2022,  such  obligations  will  include
payments and other transfers of value provided in the previous year to certain other healthcare professionals, including physician assistants, nurse
practitioners, clinical nurse specialists, certified nurse anesthetists, anesthesiologist assistants, and certified nurse midwives;

•

analogous  state  or  foreign  laws  and  regulations,  such  as  state  anti-kickback  and  false  claims  laws,  which  may  apply  to  items  or  services
reimbursed  by  any  third-party  payor,  including  commercial  insurers,  state  marketing  and/or  transparency  laws  applicable  to  manufacturers  that
may be broader in scope than the federal requirements, state laws that require biopharmaceutical companies to comply with the biopharmaceutical
industry’s voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal government, state laws that require
drug manufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers, marketing
expenditures, or drug pricing, state and local laws that require the registration of pharmaceutical sales representatives, and state laws governing the
privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and may not have
the same effect as HIPAA, thus complicating compliance efforts;

• GDPR, the local EU data protection laws, and other ex-U.S. protections;

•

•

the  French  “transparency”  provisions,  or  “French  Sunshine  Act”  (Articles  L.  1453-1  and  D.  1453-1  and  seq.  PHC),  which  contains  provisions
regarding  transparency  of  fees  received  by  some  healthcare  professionals  from  industries,  such  as  companies  manufacturing  or  marketing
healthcare products (medicinal products, medical devices, etc.) or services related to these products in France. According to the provisions, these
companies shall publicly disclose (on a specific public website available at www.entreprises-transparence.sante.gouv.fr) the advantages and fees
paid to healthcare professionals amounting to €10 or above, as well as the agreements concluded with the latter, along with detailed information
about each agreement (the precise subject matter of the agreement, the date of signature of the agreement, its end date, the total amount paid to the
healthcare professional, etc.); and

the  French  “anti-gift”  provisions  (Articles  L.1453-3  to  L.1453-12  PHC),  setting  out  a  general  prohibition  of  payments  and  rewards  from
industries, i.e. companies manufacturing or marketing health products, to - but not only - healthcare professionals, with limited exceptions and
strictly  defines  the  conditions  under  which  such  payments  or  awards  are  lawful,  notably  the  authorization  of  the  Professional  Boards  if  the
financial counterpart is higher than a certain amount, this limit being different according to the nature of the benefit concerned

Ensuring that our business arrangements with third parties comply with applicable healthcare laws and regulations will likely be costly. It is possible that
governmental  authorities  will  conclude  that  our  business  practices  do  not  comply  with  current  or  future  statutes,  regulations  or  case  law  involving
applicable  fraud  and  abuse  or  other  healthcare  laws  and  regulations.  If  our  operations  were  found  to  be  in  violation  of  any  of  these  laws  or  any  other
governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties, damages, fines, disgorgement,
imprisonment, possible exclusion from government funded healthcare programs, such as Medicare and Medicaid, additional reporting requirements and
oversight  if  we  become  subject  to  a  corporate  integrity  agreement  or  similar  agreement  to  resolve  allegations  of  non-compliance  with  these  laws,
contractual damages, reputational harm, diminished profits and future earnings, and curtailment of our operations, any of which could substantially disrupt
our operations. If the physicians or other providers or entities with whom we expect to do business are found not to be in compliance with applicable laws,
they may be subject to significant criminal, civil or administrative sanctions, including exclusions from government funded healthcare programs.

If we fail to comply with environmental, health and safety laws and regulations, we could become subject to fines or penalties or incur costs that could
have a material adverse effect on the success of our business.

We are subject to numerous environmental, health and safety laws and regulations, including those governing laboratory procedures and the handling, use,
storage, treatment and disposal of hazardous materials and wastes. Our research and development activities

28

involve the use of biological and hazardous materials and produce hazardous waste products. We generally contract with third parties for the disposal of
these  materials  and  wastes.  We  cannot  eliminate  the  risk  of  contamination  or  injury  from  these  materials,  which  could  cause  an  interruption  of  our
commercialization  efforts,  research  and  development  efforts  and  business  operations,  environmental  damage  resulting  in  costly  clean-up  and  liabilities
under  applicable  laws  and  regulations  governing  the  use,  storage,  handling  and  disposal  of  these  materials  and  specified  waste  products.  Although  we
believe  that  the  safety  procedures  utilized  by  our  third-party  manufacturers  for  handling  and  disposing  of  these  materials  generally  comply  with  the
standards prescribed by these laws and regulations, we cannot guarantee that this is the case or eliminate the risk of accidental contamination or injury from
these materials. In such an event, we may be held liable for any resulting damages and such liability could exceed our resources and state or federal or other
applicable authorities may curtail our use of certain materials and/or interrupt our business operations. Furthermore, environmental laws and regulations are
complex, change frequently and have tended to become more stringent. We cannot predict the impact of such changes and cannot be certain of our future
compliance. In addition, we may incur substantial costs in order to comply with current or future environmental, health and safety laws and regulations.
These current or future laws and regulations may impair our research, development or production efforts. Failure to comply with these laws and regulations
also may result in substantial fines, penalties or other sanctions.

Although we maintain professional liability insurance which cover for costs and expenses we may incur due to environmental liability that may be asserted
against us or due to injuries to our employees resulting from the use of hazardous materials, may not provide adequate coverage against potential liabilities.

Our  employees  may  engage  in  misconduct  or  other  improper  activities,  including  violating  applicable  regulatory  standards  and  requirements  or
engaging in insider trading, which could significantly harm our business.

We  are  exposed  to  the  risk  of  employee  fraud  or  other  misconduct.  Misconduct  by  employees  could  include  intentional  failures  to  comply  with  legal
requirements  or  the  requirements  of  CMS,  EMA,  FDA  and  other  government  regulators,  provide  accurate  information  to  applicable  government
authorities, comply with fraud and abuse and other healthcare laws and regulations in the United States and abroad, report financial information or data
accurately  or  disclose  unauthorized  activities  to  us.  In  particular,  sales,  marketing  and  business  arrangements  in  the  healthcare  industry  are  subject  to
extensive  laws  and  regulations  intended  to  prevent  fraud,  misconduct,  kickbacks,  self-dealing  and  other  abusive  practices.  These  laws  and  regulations
restrict  or  prohibit  a  wide  range  of  pricing,  discounting,  marketing  and  promotion,  sales  commission,  customer  incentive  programs  and  other  business
arrangements.  Employee  misconduct  could  also  involve  the  improper  use  of,  including  trading  on,  information  obtained  in  the  course  of  clinical  trials,
which could result in regulatory sanctions and serious harm to our reputation. We have adopted a Code of Business Conduct and Ethics, but it is not always
possible  to  identify  and  deter  employee  misconduct,  and  the  precautions  we  take  to  detect  and  prevent  this  activity  may  be  ineffective  in  controlling
unknown or unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to comply
with these laws or regulations. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our rights, those
actions could have a significant impact on our business, including the imposition of significant civil, criminal and administrative penalties, damages, fines,
disgorgement,  imprisonment,  possible  exclusion  from  government  funded  healthcare  programs,  such  as  Medicare  and  Medicaid,  additional  reporting
requirements  and  oversight  if  we  become  subject  to  a  corporate  integrity  agreement  or  similar  agreement  to  resolve  allegations  of  non-compliance,
contractual damages, reputational harm, diminished profits and future earnings, and curtailment of our operations.

Changes in European regulations may limit our ability to attract and obtain additional financing sources outside France.

As a result of the implementation of Regulation (EU) 2019/452 of the European Parliament and of the Council of March 19, 2019 establishing a framework
for  the  screening  of  foreign  direct  investments  into  the  European  Union,  the  list  of  sectors  of  activity  which  are  subject  to  a  control  by  the  French
authorities has been extended to cover foreign investments in additional economic sectors. Prior authorization of the Minister of Economy is required for
investments  in:  (i)  businesses  participating,  even  occasionally,  under  the  exercise  of  French  public  authority,  (ii)  businesses  that  would  be  liable  to
negatively impact public order, public security or the national defense interest, as well as (iii) business focused on research, production or trade of arms,
ammunition, gunpowder and explosive substances.

A foreign direct investment will be subject to authorization where there is an (i) acquisition of control, under article L.233-3 of the French Commercial
Code, of an entity subject to French law, (ii) where a party acquires all or part of a branch of activity of an entity subject to French law, (iii) or where a
party crosses directly or indirectly, and acting alone or in concert, the 25% voting rights threshold of an entity subject to French law.

The French government has adapted the foreign investment control procedure in France within the context of the ongoing COVID-19 pandemic in two
ways: (i) the inclusion, by a Ministerial order (arrêté) of April 27, 2020, of biotechnologies in the list of critical technologies and (ii) the addition, by a
Decree (décret) of July 22, 2020 as amended by Decree n°2020-1729 of December 28, 2020, of the threshold of 10% of voting rights of a company subject
to French law whose securities are listed on a stock exchange as triggering the control procedure.

29

The  Decree  of  July  22,  2020,  as  amended  by  the  decree  of  December  28,  2020,  currently  provides  that  this  new  10%  threshold  will  be  effective  until
December 31, 2021 and a fast-track review procedure for foreign investments exceeding this threshold.

If an investment in the company subject to prior authorization is realized without this authorization having been granted, the Minister will be able to order
the investor, subject to a fine for non-performance, to: (i) file an authorization application, (ii) restore the previous situation, or (iii) amend the investment
and, if he considers that the conditions for the authorization have not been met, the Minister may also revoke the authorization or order the investor, subject
to a fine for non-performance, to comply with the authorization. In both cases, he may also take provisional measures.

Furthermore, an investor who has carried out a transaction without prior authorization or has not complied with the orders or measures set by the French
Minister of Economy will be liable to a fine of up to the greater of the following amounts: (i) double the amount of the irregular investment, (ii) 10% of the
turnover (excluding taxes) of the company, (iii) five million euros for legal entities, and (iv) one million euros for individuals.

Inclusion of biotechnologies in the list of critical technologies subject to foreign investment control procedure could discourage foreign investment in the
Company's  securities,  thereby  limiting  access  to  foreign  sources  of  financing.  If  interested  investors  do  not  or  cannot  obtain  such  authorization,  their
investment could be cancelled and be subject to additional fees and/or monetary penalties.

Future changes to tax laws could materially adversely affect our company and reduce net returns to our shareholders.

Our tax treatment is subject to the enactment of, or changes in, tax laws, regulations and treaties, or the interpretation thereof, tax policy initiatives and
reforms  under  consideration  and  the  practices  of  tax  authorities  in  jurisdictions  in  which  we  operate,  including  those  related  to  the  Organization  for
Economic  Co-Operation  and  Development’s  Base  Erosion  and  Profit  Shifting  Project,  the  European  Commission’s  state  aid  investigations  and  other
initiatives. Such changes may include (but are not limited to) the taxation of operating income, investment income, dividends received or (in the specific
context of withholding tax) dividends paid. We are unable to predict what tax reform may be proposed or enacted in the future or what effect such changes
would have on our business, but such changes, to the extent they are brought into tax legislation, regulations, policies or practices, could affect our financial
position and overall or effective tax rates in the future in countries where we have operations, reduce post-tax returns to our shareholders, and increase the
complexity, burden and cost of tax compliance.

For  example,  the  Tax  Act  enacted  many  significant  changes  to  the  U.S.  tax  laws.  Future  guidance  from  the  Internal  Revenue  Service  and  other  tax
authorities with respect to the Tax Act may affect us, and certain aspects of the Tax Act could be repealed or modified in future legislation. In addition, it is
uncertain if and to what extent various states will conform to the Tax Act or any newly enacted federal tax legislation. Changes in corporate tax rates, the
realization of net deferred tax assets relating to our operations, the taxation of foreign earnings, and the deductibility of expenses under the Tax Act or
future  reform  legislation  could  have  a  material  impact  on  the  value  of  our  deferred  tax  assets,  could  result  in  significant  one-time  charges,  and  could
increase  our  future  U.S.  tax  expense.  We  urge  you  to  consult  with  your  legal  and  tax  advisors  with  respect  to  this  legislation  and  the  potential  tax
consequences of investing in or holding our common shares.

Tax  authorities  may  disagree  with  our  positions  and  conclusions  regarding  certain  tax  positions,  resulting  in  unanticipated  costs,  taxes  or  non-
realization of expected benefits.

A tax authority may disagree with tax positions that we have taken, which could result in increased tax liabilities. For example, the U.S. Internal Revenue
Service  or  another  tax  authority  could  challenge  our  allocation  of  income  by  tax  jurisdiction  and  the  amounts  paid  between  our  affiliated  companies
pursuant  to  our  intercompany  arrangements  and  transfer  pricing  policies,  including  amounts  paid  with  respect  to  our  intellectual  property  development.
Similarly,  a  tax  authority  could  assert  that  we  are  subject  to  tax  in  a  jurisdiction  where  we  believe  we  have  not  established  a  taxable  connection,  often
referred to as a “permanent establishment” under international tax treaties, and such an assertion, if successful, could increase our expected tax liability in
one or more jurisdictions. A tax authority may take the position that material income tax liabilities, interest and penalties are payable by us, in which case,
we expect that we might contest such assessment. Contesting such an assessment may be lengthy and costly and if we were unsuccessful in disputing the
assessment, the implications could increase our anticipated effective tax rate, where applicable.

For U.S. tax purposes, our ability to use our net operating loss carryforwards to offset future taxable income may be subject to certain limitations.

In general, under Section 382 of the U.S. Internal Revenue Code, or the Code, a corporation that undergoes an “ownership change” is subject to limitations
on its ability to utilize its pre-change net operating loss carryforwards, or NOLs, to offset future taxable income. We have not performed a detailed analysis
to determine whether an ownership change under Section 382 of the Code has occurred after each of our previous issuances of ordinary shares. In addition,
if we underwent an ownership change in the past, our ability to utilize NOLs could be limited by Section 382 of the Code. Future changes in our share
ownership, some of which are outside of our

30

control, could result in an ownership change under Section 382 of the Code. Furthermore, our ability to utilize NOLs of companies that we may acquire in
the future may be subject to limitations. As a result, even if we attain profitability, we may be unable to use a material portion of our NOLs and other tax
attributes, which could negatively impact our future cash flows.

3.D.8. Risks Related to Intellectual Property

Our ability to compete may decline if we do not adequately protect our proprietary rights.

Our commercial success depends on obtaining and maintaining proprietary rights to our product candidates and defending these rights against third-party
challenges.  We  will  only  be  able  to  protect  our  product  candidates  and  their  uses  from  unauthorized  use  by  third  parties  to  the  extent  that  valid  and
enforceable patents, or effectively protected trade secrets, cover them. Our ability to obtain patent protection for our product candidates is uncertain due to
a number of factors, including:

• we or our licensors may not have been the first to make the inventions covered by pending patent applications or issued patents;

• we or our licensors may not have been the first to file patent applications for our product candidates or the compositions we developed or for

their uses;

•

•

•

others may independently develop identical, similar or alternative products or compositions and uses thereof;

our or our licensors’ disclosures in patent applications may not be sufficient to meet the statutory requirements for patentability;

any or all of our or our licensors’ pending patent applications may not result in issued patents;

• we or our licensors may not seek or obtain patent protection in countries that may eventually provide us a significant business opportunity;

•

•

•

•

any patents issued to us or our licensors may not provide a basis for commercially viable products, may not provide any competitive advantages,
or may be successfully challenged by third parties;

our or our licensors’ compositions and methods may not be patentable;

others may design around our patent claims to produce competitive products which fall outside of the scope of our patents; or

others may identify prior art or other bases which could invalidate our or our licensors’ patents.

Even if we have or obtain patents covering our product candidates or compositions, we may still be barred from making, using and selling our product
candidates  or  technologies  because  of  the  patent  rights  of  others.  Others  may  have  filed,  and  in  the  future,  may  file,  patent  applications  covering
compositions  or  products  that  are  similar  or  identical  to  ours.  There  are  many  issued  U.S.  and  foreign  patents  relating  to  chemical  compounds  and
therapeutic products, and some of these relate to compounds we intend to commercialize. Numerous U.S. and foreign issued patents and pending patent
applications owned by others exist in the cancer treatment field in which we are developing products. These could materially affect our ability to develop
our  product  candidates  or  sell  our  products  if  approved.  Because  patent  applications  can  take  many  years  to  issue,  there  may  be  currently  pending
applications unknown to us that may later result in issued patents that our product candidates or compositions may infringe. These patent applications may
have priority over patent applications filed by us.

Obtaining  and  maintaining  a  patent  portfolio  entails  significant  expense  and  resources.  Part  of  the  expense  includes  periodic  maintenance  fees,  renewal
fees, annuity fees, various other governmental fees on patents and/or applications due in several stages over the lifetime of patents and/or applications, as
well as the cost associated with complying with numerous procedural provisions during the patent application process. We may not choose to pursue or
maintain  protection  for  particular  inventions.  In  addition,  there  are  situations  in  which  failure  to  make  certain  payments  or  noncompliance  with  certain
requirements in the patent process can result in abandonment or lapse of a patent or patent application, resulting in partial or complete loss of patent rights
in  the  relevant  jurisdiction.  If  we  choose  to  forgo  patent  protection  or  allow  a  patent  application  or  patent  to  lapse  purposefully  or  inadvertently,  our
competitive position could suffer.

Legal actions to enforce our patent rights can be expensive and may involve the diversion of significant management time. In addition, these legal actions
could be unsuccessful and could also result in the invalidation of our patents or a finding that they are unenforceable. We may or may not choose to pursue
litigation  or  other  actions  against  those  that  have  infringed  on  our  patents,  or  used  them  without  authorization,  due  to  the  associated  expense  and  time
commitment of monitoring these activities. If we fail to protect or to enforce our intellectual property rights successfully, our competitive position could
suffer, which could harm our results of operations.

31

Issued patents covering our product candidates could be found invalid or unenforceable if challenged in court.

If we initiate legal proceedings against a third party to enforce a patent covering our product candidate or technology, the defendant could counterclaim that
the  patent  covering  our  product  candidate  or  technology  is  invalid  or  unenforceable.  In  patent  litigation  in  the  United  States,  defendant  counterclaims
alleging  invalidity  and  unenforceability  are  commonplace.  Grounds  for  a  validity  challenge  include  alleged  failures  to  meet  any  of  several  statutory
requirements,  including  lack  of  novelty,  obviousness  or  non-enablement.  Grounds  for  unenforceability  assertions  include  allegations  that  someone
connected with prosecution of the patent withheld relevant information from the USPTO, or made a misleading statement, during prosecution. Third parties
may also raise similar claims before administrative bodies in the United States or abroad, even outside the context of litigation. Such mechanisms include
re-examination,  post-grant  review  and/or  inter  partes  review  and  equivalent  proceedings  in  foreign  jurisdictions,  and  opposition  proceedings.  Such
proceedings could result in revocation or amendment of our patents in such a way that they no longer cover our product candidates or competitive products.
The outcome following legal assertions of invalidity and unenforceability is unpredictable. With respect to validity, for example, we cannot be certain that
there is no invalidating prior art, of which we and the patent examiner were unaware during prosecution. If a defendant were to prevail on a legal assertion
of invalidity or unenforceability, we would lose at least part, and perhaps all, of the patent protection on our product candidates.

Biopharmaceutical  patents  and  patent  applications  involve  highly  complex  legal  and  factual  questions,  which,  if  determined  adversely  to  us,  could
negatively impact our patent position.

The  patent  positions  of  biopharmaceutical  companies  can  be  highly  uncertain  and  involve  complex  legal  and  factual  questions.  The  interpretation  and
breadth  of  claims  allowed  in  some  patents  covering  biopharmaceutical  compositions  may  be  uncertain  and  difficult  to  determine  and  are  often  affected
materially  by  the  facts  and  circumstances  that  pertain  to  the  patented  compositions  and  the  related  patent  claims.  The  standards  of  the  U.S.  Patent  and
Trademark  Office,  or  USPTO,  are  evolving  and  could  change  in  the  future.  Consequently,  we  cannot  predict  the  issuance  and  scope  of  patents  with
certainty.  Patents,  if  issued,  may  be  challenged,  invalidated  or  circumvented.  U.S.  patents  and  patent  applications  may  also  be  subject  to  interference
proceedings, and U.S. patents may be subject to reexamination proceedings, post-grant review and/or inter partes review in the USPTO. Foreign patents
may be subject also to opposition or comparable proceedings in the corresponding foreign patent office, which could result in either loss of the patent or
denial  of  the  patent  application  or  loss  or  reduction  in  the  scope  of  one  or  more  of  the  claims  of  the  patent  or  patent  application.  In  addition,  such
interference, reexamination, post-grant review, inter partes review and opposition proceedings may be costly. Accordingly, rights under any issued patents
may not provide us with sufficient protection against competitive products or processes.

In addition, changes in or different interpretations of patent laws in the United States and foreign countries may permit others to use our or our licensors’
discoveries or to develop and commercialize our technology and products without providing any compensation to us, or may limit the number of patents or
claims we can obtain. The laws of some countries do not protect intellectual property rights to the same extent as U.S. laws and those countries may lack
adequate rules and procedures for defending our intellectual property rights.

If  we  fail  to  obtain  and  maintain  patent  protection  and  trade  secret  protection  for  our  product  candidates,  we  could  lose  our  competitive  advantage  and
competition we face would increase, reducing any potential revenues and adversely affecting our ability to attain or maintain profitability.

Developments in patent law could have a negative impact on our business.

From time to time, the U.S. Supreme Court, other federal courts, the U.S. Congress, the USPTO or similar foreign authorities may change the standards of
patentability  and  any  such  changes  could  have  a  negative  impact  on  our  business.  In  addition,  the  Leahy-Smith  America  Invents  Act,  or  the  America
Invents Act, which was signed into law in 2011, includes a number of significant changes to U.S. patent law. These changes include a transition from a
“first-to-invent”  system  to  a  “first-to-file”  system,  changes  to  the  way  issued  patents  are  challenged,  and  changes  to  the  way  patent  applications  are
disputed during the examination process. These changes may favor larger and more established companies that have greater resources to devote to patent
application filing and prosecution. The USPTO has developed new regulations and procedures to govern the full implementation of the America Invents
Act,  and  many  of  the  substantive  changes  to  patent  law  associated  with  the  America  Invents  Act,  and,  in  particular,  the  first-to-file  provisions,  became
effective  on  March  16,  2013.  Substantive  changes  to  patent  law  associated  with  the  America  Invents  Act,  or  any  subsequent  U.S.  legislation  regarding
patents, may affect our ability to obtain patents, and if obtained, to enforce or defend them. Accordingly, it is not clear what, if any, impact the America
Invents Act will have on the cost of prosecuting our U.S. patent applications, our ability to obtain U.S. patents based on our discoveries and our ability to
enforce or defend any patents that may issue from our patent applications, all of which could have a material adverse effect on our business.

32

If we do not obtain protection under the Hatch-Waxman Amendments and similar non-U.S. legislation for extending the term of patents covering each
of our product candidates, our business may be materially harmed.

Depending upon the timing, duration and conditions of FDA marketing approval of our product candidates, one or more of our U.S. patents may be eligible
for  limited  patent  term  extension  under  the  Drug  Price  Competition  and  Patent  Term  Restoration  Act  of  1984,  referred  to  as  the  Hatch-Waxman
Amendments, and similar legislation in the European Union. The Hatch-Waxman Amendments permit a patent term extension of up to five years for a
patent covering an approved product as compensation for effective patent term lost during product development and the FDA regulatory review process.
However, we may not receive an extension if we fail to apply within applicable deadlines, fail to apply prior to expiration of relevant patents or otherwise
fail to satisfy applicable requirements. Moreover, the length of the extension could be less than we request. If we are unable to obtain patent term extension
or the term of any such extension is less than we request, the period during which we can enforce our patent rights for that product will be shortened and
our competitors may obtain approval to market competing products sooner. As a result, our revenue from applicable products could be reduced, possibly
materially.

If we are unable to protect the confidentiality of our trade secrets, our business and competitive position would be harmed.

In addition to patent protection, because we operate in the highly technical field of development of therapies, we rely in part on trade secret protection in
order  to  protect  our  proprietary  technology  and  processes.  However,  trade  secrets  are  difficult  to  protect.  We  have  entered  into  confidentiality  and
intellectual property assignment agreements with our employees, consultants, outside scientific collaborators, sponsored researchers, and other advisors.
These agreements generally require that the other party keep confidential and not disclose to third parties all confidential information developed by the
party  or  made  known  to  the  party  by  us  during  the  course  of  the  party’s  relationship  with  us.  These  agreements  also  generally  provide  that  inventions
conceived by the party in the course of rendering services to us will be our exclusive property. However, these agreements may not be honored and may not
effectively assign intellectual property rights to us.

In  addition  to  contractual  measures,  we  try  to  protect  the  confidential  nature  of  our  proprietary  information  using  physical  and  technological  security
measures. Such measures may not, for example, in the case of misappropriation of a trade secret by an employee or third party with authorized access,
provide adequate protection for our proprietary information. Our security measures may not prevent an employee or consultant from misappropriating our
trade  secrets  and  providing  them  to  a  competitor,  and  recourse  we  take  against  such  misconduct  may  not  provide  an  adequate  remedy  to  protect  our
interests fully. Enforcing a claim that a party illegally disclosed or misappropriated a trade secret can be difficult, expensive, and time-consuming, and the
outcome is unpredictable. In addition, courts outside the United States may be less willing to protect trade secrets. Trade secrets may be independently
developed by others in a manner that could prevent legal recourse by us. If any of our confidential or proprietary information, such as our trade secrets,
were  to  be  disclosed  or  misappropriated,  or  if  any  such  information  was  independently  developed  by  a  competitor,  our  competitive  position  could  be
harmed.

We will not seek to protect our intellectual property rights in all jurisdictions throughout the world and we may not be able to adequately enforce our
intellectual property rights even in the jurisdictions where we seek protection.

Filing,  prosecuting  and  defending  patents  on  our  product  candidates  in  all  countries  and  jurisdictions  throughout  the  world  would  be  prohibitively
expensive, and our intellectual property rights in some countries outside the United States could be less extensive than those in the United States, assuming
that rights are obtained in the United States. Competitors may use our technologies in jurisdictions where we do not pursue and obtain patent protection to
develop their own products and further, may export otherwise infringing products to territories where we have patent protection, but enforcement is not as
strong as that in the United States. These products may compete with our products and our patents or other intellectual property rights may not be effective
or sufficient to prevent them from competing. Even if we pursue and obtain issued patents in particular jurisdictions, our patent claims or other intellectual
property rights may not be effective or sufficient to prevent third parties from so competing.

In  addition,  the  laws  of  some  foreign  countries  do  not  protect  intellectual  property  rights  to  the  same  extent  as  the  federal  and  state  laws  in  the  United
States. Many companies have encountered significant problems in protecting and defending intellectual property rights in certain foreign jurisdictions. The
legal  systems  of  some  countries,  particularly  developing  countries,  do  not  favor  the  enforcement  of  patents  and  other  intellectual  property  protection,
especially those relating to biopharmaceuticals or biotechnologies. This could make it difficult for us to stop the infringement of our patents, if obtained, or
the misappropriation of our other intellectual property rights. For example, many foreign countries have compulsory licensing laws under which a patent
owner  must  grant  licenses  to  third  parties.  In  addition,  many  countries  limit  the  enforceability  of  patents  against  third  parties,  including  government
agencies or government contractors. In these countries, patents may provide limited or no benefit. Patent protection must ultimately be sought on a country-
by-country basis, which is an expensive and time-consuming process with uncertain outcomes. Accordingly, we may choose not to seek patent protection in
certain countries, and we will not have the benefit of patent protection in such countries.

33

Proceedings to enforce our patent rights in foreign jurisdictions could result in substantial costs and divert our efforts and attention from other aspects of
our business, could put our patents at risk of being invalidated or interpreted narrowly, could put our patent applications at risk of not issuing and could
provoke third parties to assert claims against us. We may not prevail in any lawsuits that we initiate and the damages or other remedies awarded, if any,
may not be commercially meaningful. In addition, changes in the law and legal decisions by courts in the United States and foreign countries may affect
our ability to obtain adequate protection for our technology and the enforcement of intellectual property. Accordingly, our efforts to enforce our intellectual
property rights around the world may be inadequate to obtain a significant commercial advantage from the intellectual property that we develop or license.

Third parties may assert ownership to inventions we develop.

Collaborators or third party partners may in the future make claims challenging the inventorship or ownership of our intellectual property developed in the
context of their collaboration with us. We have written agreements with collaborators and third party partners that provide us the ownership of intellectual
property or provide that we must negotiate certain intellectual property rights with collaborators and third party partners with respect to joint inventions or
inventions made by them that arise from the results of the collaboration. In some instances, written provisions or conditions may be challenged or may not
be  adequate  to  address  clearly  the  resolution  of  intellectual  property  rights  that  may  arise  from  a  collaboration.  If  we  cannot  successfully  negotiate
ownership of intellectual property to the inventions that result from our use of a third-party partner or collaborator’s materials where required, or if disputes
otherwise arise with respect to the intellectual property developed with the use of a third-party partner or collaborator’s samples, we may be limited in our
ability  to  capitalize  on  the  market  potential  of  these  inventions.  In  addition,  we  may  face  claims  by  third  parties  that  our  agreements  with  employees,
contractors, or consultants obligating them to assign intellectual property to us are ineffective, or in conflict with prior or competing contractual obligations
of assignment, which could result in ownership disputes regarding intellectual property we have developed or will develop and interfere with our ability to
capture the commercial value of such inventions. Litigation may be necessary to resolve an ownership dispute, and if we are not successful, we may be
precluded  from  using  certain  intellectual  property,  or  may  lose  our  exclusive  rights  in  that  intellectual  property.  Either  outcome  could  have  an  adverse
impact on our business.

If we fail to comply with our obligations under license or technology agreements with third parties, we could lose license rights that are critical to our
business.

We license intellectual property that is critical to our business, including licenses underlying the technology in our diagnostic tests, and in the future, we
may enter into additional agreements that provide us with licenses to valuable intellectual property or technology. These licenses impose various royalty
payments,  milestones,  and  other  obligations  on  us.  If  we  fail  to  comply  with  any  of  these  obligations,  the  licensor  may  have  the  right  to  terminate  the
license. Termination by the licensor would cause us to lose valuable rights, and could prevent us from distributing our current tests, or inhibit our ability to
commercialize future test candidates. Our business would suffer if any current or future licenses terminate, if the licensors fail to abide by the terms of the
license, if the licensors fail to prevent infringement by third parties, if the licensed patents or other rights are found to be invalid or unenforceable, or if we
are unable to enter into necessary licenses on acceptable terms.

Third  parties  may  assert  that  our  employees  or  consultants  have  wrongfully  used  or  disclosed  confidential  information  or  misappropriated  trade
secrets.

We employ individuals who were previously employed at universities or other biotechnology or pharmaceutical companies, including our competitors or
potential competitors. Although we try to ensure that our employees and consultants do not use the proprietary information or know-how of others in their
work  for  us,  and  no  such  claims  against  us  are  currently  pending,  we  may  be  subject  to  claims  that  we  or  our  employees,  consultants  or  independent
contractors have used or disclosed intellectual property, including trade secrets or other proprietary information, of a former employer or other third parties.
Litigation may be necessary to defend against these claims. If we fail in defending any such claims, in addition to paying monetary damages, we may lose
valuable intellectual property rights or personnel. Even if we are successful in defending against such claims, litigation could result in substantial costs and
be a distraction to management and other employees.

A dispute concerning the infringement or misappropriation of our proprietary rights or the proprietary rights of others could be time-consuming and
costly, and an unfavorable outcome could harm our business.

There is significant litigation in the biopharmaceutical industry regarding patent and other intellectual property rights. While we are not currently subject to
any  pending  intellectual  property  litigation,  and  are  not  aware  of  any  such  threatened  litigation,  we  may  be  exposed  to  future  litigation  by  third  parties
based on claims that our product candidates, technologies or activities infringe the intellectual property rights of others. If our development activities are
found to infringe any such patents, we may have to pay significant damages or seek licenses to such patents. A patentee could prevent us from using the
patented drugs or compositions. We may need to resort to litigation to enforce a patent issued to us, to protect our trade secrets, or to determine the scope
and validity of third-party proprietary rights. From time to time, we may hire scientific personnel or consultants formerly employed by other

34

companies involved in one or more areas similar to the activities conducted by us. Either we or these individuals may be subject to allegations of trade
secret misappropriation or other similar claims as a result of prior affiliations. If we become involved in litigation, it could consume a substantial portion of
our managerial and financial resources, regardless of whether we win or lose. We may not be able to afford the costs of litigation. Any adverse ruling or
perception of an adverse ruling in defending ourselves against these claims could have a negative impact on our cash position. Any legal action against us
or our collaborators could lead to:

•

•

•

payment of damages, potentially treble damages, if we are found to have willfully infringed a party’s patent rights;

injunctive or other equitable relief that may effectively block our ability to further develop, commercialize, and sell products; or

us or our collaborators having to enter into license arrangements that may not be available on commercially acceptable terms, if at all.

Any of these outcomes could hurt our cash position and financial condition and our ability to develop and commercialize our product candidates.

If our trademarks and trade names are not adequately protected, we may not be able to build name recognition in our markets of interest.

Our registered or unregistered trademarks or trade names may be challenged, infringed, circumvented or declared generic or determined to be infringing on
other marks. We may not be able to protect our rights to these trademarks and trade names, which we will need to build name recognition by potential
partners or customers in our markets of interest. Over the long term, if we are unable to establish name recognition based on our trademarks and trade
names, we may not be able to compete effectively.

3.D.9. Risks Related to Ownership of our Securities and our Status as a Non-U.S. Company with Foreign Private Issuer Status

The market price of our equity securities may be volatile or may decline regardless of our operating performance.

The market price for our ADSs and ordinary shares has fluctuated and is likely to continue to fluctuate, substantially. The stock market in general and the
market for biopharmaceutical companies in particular have experienced extreme volatility that in some instances is unrelated to the operating performance
of particular companies. For example, on the day we announced our positive Phase 2b clinical trial results evaluating eryaspase in metastatic pancreatic
cancer in March 2017, the closing price per ordinary share on Euronext Paris increased by 71% compared to the average of the closing price per ordinary
share for the previous 20 trading days. Conversely, on the day we announced the discontinuation of our developments in AML in June 2018, the closing
price per ordinary share on Euronext Paris decreased by 31% compared to the average of the closing price per ordinary share for the previous 20 trading
days. A significant decrease in our share price could have a significant adverse effect on our financial condition, reputation and prospects.

As a result of this volatility in our market and industry, holders of our equity securities may not be able to sell their ADSs or ordinary shares at or above the
price  originally  paid  for  the  security.  The  market  price  for  our  ADSs  and  ordinary  shares  may  be  influenced  by  numerous  factors,  some  of  which  are
beyond our control, including:

•

•

•

•

•

•

•

•

•

•

•

actual or anticipated fluctuations in our financial condition and operating results;

actual or anticipated changes in our growth rate relative to our competitors;

competition from existing products or new products that may emerge;

announcements  by  us  or  our  competitors  of  significant  acquisitions,  strategic  partnerships,  joint  ventures,  collaborations,  or  capital
commitments;

failure to meet or exceed financial estimates and projections of the investment community or that we provide to the public;

issuance of new or updated research or reports by securities analysts;

fluctuations in the valuation of companies perceived by investors to be comparable to us;

share and ADS price and volume fluctuations attributable to inconsistent trading volume levels of our shares and ADSs;

additions or departures of key management or scientific personnel;

lawsuits threatened or filed against us, disputes or other developments related to proprietary rights, including patents, litigation matters, and our
ability to obtain patent protection for our technologies;

changes to coverage policies or reimbursement levels by commercial third-party payors and government payors and any announcements relating
to coverage policies or reimbursement levels;

35

•

•

•

•

•

announcement or expectation of additional debt or equity financing efforts;

adverse regulatory decisions, including failure to receive regulatory approval for any of our product candidates;

the termination of a strategic alliance or the inability to establish additional strategic alliances;

sales of our ordinary shares or ADSs by us, our insiders or our other shareholders; and

general economic and market conditions.

These and other market and industry factors may cause the market price and demand for our ordinary shares and ADSs to fluctuate substantially, regardless
of our actual operating performance, which may limit or prevent holders of our equity securities from readily selling their ordinary shares or ADSs and may
otherwise negatively affect the liquidity of the trading market for the ordinary shares and ADSs.

In  addition,  in  the  past,  stockholders  have  initiated  class  action  lawsuits  against  pharmaceutical  and  biotechnology  companies  following  periods  of
volatility  in  the  market  prices  of  these  companies’  stock.  Such  litigation,  if  instituted  against  us,  could  cause  us  to  incur  substantial  costs  and  divert
management’s attention and resources from our business.

The dual listing of our ordinary shares and our ADSs may adversely affect the liquidity and value of our ordinary shares and ADSs.

Our ADSs are listed on Nasdaq, and our ordinary shares are listed on Euronext Paris. We cannot predict the effect our dual listing will have on the value of
our ADSs and ordinary shares. However, the dual listing of our ADSs and ordinary shares may dilute the liquidity of these securities in one or both markets
and may adversely affect the trading market or price for our ADSs or ordinary shares.

If we do not achieve our projected development and commercialization goals in the timeframes we announce and expect, our business will be harmed
and the price of our securities could decline as a result.

We sometimes estimate for planning purposes the timing of the accomplishment of various scientific, clinical, regulatory and other product development
objectives. These milestones may include our expectations regarding the commencement or completion of scientific studies, clinical trials, the submission
of regulatory filings, or commercialization objectives. From time to time, we may publicly announce the expected timing of some of these milestones, such
as the completion of an ongoing clinical trial, the initiation of other clinical programs, receipt of marketing approval, or a commercial launch of a product.
The achievement of many of these milestones may be outside of our control. All of these milestones are based on a variety of assumptions which may
cause the timing of achievement of the milestones to vary considerably from our estimates, including:

•

•

•

•

•

•

•

our available capital resources or capital constraints we experience;

the rate of progress, costs and results of our clinical trials and research and development activities, including the extent of scheduling conflicts
with participating clinicians and collaborators, and our ability to identify and enroll patients who meet clinical trial eligibility criteria;

our receipt of approvals by the EMA, FDA and other regulatory agencies and the timing thereof;

other actions, decisions or rules issued by regulators;

our  ability  to  access  sufficient,  reliable  and  affordable  supplies  of  compounds  and  raw  materials  used  in  the  manufacture  of  our  product
candidates;

the efforts of our collaborators with respect to the commercialization of our products; and

the securing of, costs related to, and timing issues associated with, product manufacturing as well as sales and marketing activities.  

If we fail to achieve announced milestones in the timeframes we expect, the commercialization of our product candidates may be delayed, our business and
results of operations may be harmed, and the trading price of the ordinary shares and ADSs may decline as a result.

Our ownership is concentrated in the hands of our principal shareholders and ADS holders and management, who continue to be able to exercise a
direct or indirect controlling influence on us.

As  of  December  31,  2020,  our  executive  officers,  directors,  current  5%  or  greater  shareholders  and  their  respective  affiliated  entities,  including  BVF
Partners  L.P,  RA  Capital  Management  LLC  and  Auriga  Ventures  III  FCPR,  together  beneficially  owned  approximately  40%  of  our  ordinary  shares
(including ordinary shares in the form of ADSs). As a result, these shareholders, acting together, will have

36

significant  influence  over  all  matters  that  require  approval  by  our  shareholders,  including  the  election  of  directors  and  approval  of  significant  corporate
transactions.  Corporate  action  might  be  taken  even  if  other  shareholders  oppose  them.  This  concentration  of  ownership  might  also  have  the  effect  of
delaying or preventing a change of control of our company that other shareholders may view as beneficial.

If securities or industry analysts do not publish research or publish inaccurate or unfavorable research about our business, the price of the ordinary
shares and ADSs and their trading volume could decline.

The trading market for the ADSs and ordinary shares depends in part on the research and reports that securities or industry analysts publish about us or our
business. If no or few securities or industry analysts cover our company, the trading price for our ADSs and ordinary shares would be negatively impacted.
If one or more of the analysts who covers us downgrades our equity securities or publishes incorrect or unfavorable research about our business, the price
of the ordinary shares and ADSs would likely decline. If one or more of these analysts ceases coverage of our company or fails to publish reports on us
regularly, or downgrades our securities, demand for the ordinary shares and ADSs could decrease, which could cause the price of the ordinary shares and
ADSs or their trading volume to decline.

We do not currently intend to pay dividends on our securities and, consequently, the ability of our shareholders and ADS holders to achieve a return on
investment will depend on appreciation in the price of the ordinary shares and ADSs. In addition, French law may limit the amount of dividends we are
able to distribute.

We have never declared or paid any cash dividends on our share capital and do not currently intend to do so for the foreseeable future. We currently intend
to  invest  our  future  earnings,  if  any,  to  fund  our  growth.  Therefore,  our  shareholders  and  ADS  holders  are  not  likely  to  receive  any  dividends  for  the
foreseeable future and any increase in value will depend solely upon future appreciation. Consequently, holders of our equity securities may need to sell all
or part of their holdings of ordinary shares or ADSs after price appreciation, which may never occur, as the only way to realize any future gains.

Further, under French law, the determination of whether we have been sufficiently profitable to pay dividends is made on the basis of our statutory financial
statements  prepared  and  presented  in  accordance  with  accounting  standards  applicable  in  France.  In  addition,  payment  of  dividends  may  subject  us  to
additional taxes under French law. Please see the section of this Annual Report titled “Item 10.B—Memorandum and Articles of Association” for further
details on the limitations on our ability to declare and pay dividends and the taxes that may become payable by us if we elect to pay a dividend. Therefore,
we may be more restricted in our ability to declare dividends than companies not based in France.

In addition, exchange rate fluctuations may affect the amount of euros that we are able to distribute, and the amount in U.S. dollars that our shareholders
receive upon the payment of cash dividends or other distributions we declare and pay in euros, if any. These factors could harm the value of our equity
securities, and, in turn, the U.S. dollar proceeds that holders receive from the sale of ADSs.

Future sales, or the possibility of future sales, of a substantial number of our ADSs or ordinary shares could adversely affect the market price of our
ADSs and ordinary shares.

As of December 31, 2020, 20,057,562 ordinary shares were issued and outstanding. Sales of a substantial number of shares of our ordinary shares or ADSs
in the public market, or the perception that these sales might occur, could depress the market price of our securities and could impair our ability to raise
capital through the sale of additional equity securities. A substantial number of our shares are now generally freely tradable, subject, in the case of sales by
our  affiliates,  to  the  volume  limitations  and  other  provisions  of  Rule  144  under  the  U.S.  Securities  Act  of  1933,  as  amended,  or  the  Securities  Act.  If
holders of these shares sell, or indicate an intent to sell, substantial amounts of our securities in the public market, the trading price of our securities could
decline significantly.

We have also filed a registration statement with the SEC to register the ordinary shares that may be issued under our equity incentive plans. The ordinary
shares subject to outstanding options under our equity incentive plans, ordinary shares reserved for future issuance under our equity incentive plans and
ordinary  shares  subject  to  outstanding  warrants  will  become  eligible  for  sale  in  the  public  market  in  the  future,  subject  to  certain  legal  and  contractual
limitations. Sales of a large number of the shares issued under these plans in the public market could have an adverse effect on the market price of our
securities. In addition, pursuant to the OCABSA Agreement, we may issue ordinary shares upon conversion of convertible notes and/or exercise of share
warrants. In the event that such ordinary shares are sold in the public market, such sales of ordinary shares pursuant to the OCABSA Agreement could also
have an adverse effect on the market price of our securities.

37

The rights of shareholders in companies subject to French corporate law differ in material respects from the rights of shareholders of corporations
incorporated in the United States.

We are a French company with limited liability. Our corporate affairs are governed by our bylaws and by the laws governing companies incorporated in
France. The rights of shareholders and the responsibilities of members of our board of directors are in many ways different from the rights and obligations
of shareholders in companies governed by the laws of U.S. jurisdictions. For example, in the performance of its duties, our board of directors is required by
French  law  to  consider  the  interests  of  our  company,  its  shareholders,  its  employees  and  other  stakeholders,  rather  than  solely  our  shareholders  and/or
creditors. It is possible that some of these parties will have interests that are different from, or in addition to, the interests of our shareholders or holders of
our  ADSs.  See  the  sections  of  this  Annual  Report  titled  “Item  10.  B—Memorandum  and  Articles  of  Association”  and  “Item  16.G—Corporate
Governance.”

U.S.  holders  of  our  equity  securities  may  have  difficulty  enforcing  civil  liabilities  against  our  company  and  directors  and  senior  management  and
experts named herein.

Certain members of our board of directors and senior management and certain experts named herein are non-residents of the United States, and all or a
substantial portion of our assets and the assets of such persons are located outside the United States. As a result, it may not be possible to serve process on
such persons or us in the United States or to enforce judgments obtained in U.S. courts against them or us based on civil liability provisions of the securities
laws of the United States. Additionally, it may be difficult to assert U.S. securities law claims in actions originally instituted outside of the United States.
Foreign  courts  may  refuse  to  hear  a  U.S.  securities  law  claim  because  foreign  courts  may  not  be  the  most  appropriate  forums  in  which  to  bring  such  a
claim. Even if a foreign court agrees to hear a claim, it may determine that the law of the jurisdiction in which the foreign court resides, and not U.S. law, is
applicable to the claim. Further, if U.S. law is found to be applicable, the content of applicable U.S. law must be proved as a fact, which can be a time-
consuming and costly process, and certain matters of procedure would still be governed by the law of the jurisdiction in which the foreign court resides. In
particular, there is some doubt as to whether French courts would recognize and enforce certain civil liabilities under U.S. securities laws in original actions
or judgments of U.S. courts based upon these civil liability provisions. In addition, awards of punitive damages in actions brought in the United States or
elsewhere may be unenforceable in France. An award for monetary damages under the U.S. securities laws would be considered punitive if it does not seek
to  compensate  the  claimant  for  loss  or  damage  suffered  but  is  intended  to  punish  the  defendant.  French  law  provides  that  a  shareholder,  or  a  group  of
shareholders, may initiate a legal action to seek indemnification from the directors of a corporation in the corporation’s interest if it fails to bring such legal
action itself. If so, any damages awarded by the court are paid to the corporation and any legal fees relating to such action may be borne by the relevant
shareholder or the group of shareholders.

The enforceability of any judgment in France will depend on the particular facts of the case as well as the laws and treaties in effect at the time. The United
States  and  France  do  not  currently  have  a  treaty  providing  for  recognition  and  enforcement  of  judgments  (other  than  arbitration  awards)  in  civil  and
commercial matters.

Our bylaws and French corporate law contain provisions that may delay or discourage a takeover attempt.

Provisions  contained  in  our  bylaws  and  French  corporate  law  could  make  it  more  difficult  for  a  third-party  to  acquire  us,  even  if  doing  so  might  be
beneficial to our shareholders. In addition, provisions of our bylaws impose various procedural and other requirements, which could make it more difficult
for shareholders to effect certain corporate actions. These provisions include the following:

•

•

•

under French law, the owner of 90% of the share capital or voting rights of a public company listed on a regulated market in a Member State of
the  European  Union  or  in  a  state  party  to  the  European  Economic  Area,  or  EEA,  Agreement,  including  France,  has  the  right  to  force  out
minority shareholders following a tender offer made to all shareholders;

under French law, a non-resident of France as well as any French entity controlled by non-residents of France may have to file a declaration for
statistical purposes with the Bank of France (Banque de France) within 20 working days following the date of certain direct foreign investments
in us, including any purchase of our ADSs. In particular, such filings are required in connection with investments exceeding €15,000,000 that
lead to the acquisition of at least 10% of our share capital or voting rights or cross such 10% threshold. See “Item 10.B - Limitations Affecting
Shareholders of a French Company;”

under French law, certain investments in a French company relating to certain strategic industries by individuals or entities not residents in a
Member State of the European Union or controlled by individuals of entities not resident in a Member State of the European Union are subject
to prior authorization of the Ministry of Economy pursuant to Law n°2019-486 (and as from April 1, 2020 pursuant to the decree n°2019-1590).
See  “Item  10.B  -  Limitations  Affecting  Shareholders  of  a  French  Company;”.  Within  the  context  of  the  ongoing  COVID-19  pandemic,  the
French government has included biotechnologies in the list of strategic industries by a Ministerial order (arrêté) of April 27, 2020. See section
D "Risk Factors - Risks Related to our Financial Position and Capital Needs ";

38

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

a merger (i.e., in a French law context, a stock for stock exchange following which our company would be dissolved without being liquidated
into the acquiring entity and our shareholders would become shareholders of the acquiring entity) of our company into a company incorporated
in the European Union would require the approval of our board of directors as well as a two-thirds majority of the votes held by the shareholders
present, represented by proxy or voting by mail at the relevant meeting;

a  merger  of  our  company  into  a  company  incorporated  outside  of  the  European  Union  would  require  the  unanimous  approval  of  our
shareholders;

under French law, a cash merger is treated as a share purchase and would require the consent of each participating shareholder;

our shareholders have granted and may grant in the future our board of directors broad authorizations to increase our share capital or to issue
additional  ordinary  shares  or  other  securities,  such  as  warrants,  to  our  shareholders,  the  public  or  qualified  investors,  including  as  a  possible
defense following the launching of a tender offer for our shares;

our shareholders have preferential subscription rights on a pro rata basis on the future issuance by us of any additional securities for cash or a
set-off of cash debts, which rights may only be waived by the extraordinary general shareholders’ meeting (by a two-thirds majority vote) of our
shareholders or on an individual basis by each shareholder;

our  board  of  directors  has  the  right  to  appoint  directors  to  fill  a  vacancy  created  by  the  resignation  or  death  of  a  director,  for  the  remaining
duration of such director’s term of office and subject to the approval by the shareholders of such appointment at the next shareholders’ meeting,
which prevents shareholders from having the sole right to fill vacancies on our board of directors;

our board of directors can be convened by our chairman or our managing director, if any, or, when no board meeting has been held for more than
two consecutive months, by directors representing at least one third of the total number of directors;

our board of directors meetings can only be regularly held if at least half of the directors attend either physically or by way of videoconference
or teleconference enabling the directors’ identification and ensuring their effective participation in the board’s decisions;

our shares are nominative or bearer, if the legislation so permits, according to the shareholder’s choice;

approval  of  at  least  a  majority  of  the  votes  held  by  shareholders  present,  represented  by  a  proxy,  or  voting  by  mail  at  the  relevant  ordinary
shareholders’ general meeting is required to remove directors with or without cause;

advance notice is required for nominations to the board of directors or for proposing matters to be acted upon at a shareholders’ meeting, except
that a vote to remove and replace a director can be proposed at any shareholders’ meeting without notice;

our bylaws can be changed in accordance with applicable laws;

the crossing of certain thresholds has to be disclosed and can impose certain obligations; see the section of this Annual Report titled “Item 10.B
—Memorandum and Articles of Association”;

transfers of shares shall comply with applicable insider trading rules and regulations and, in particular, with the Market Abuse Directive and
Regulation dated April 16, 2014; and

pursuant to French law, the sections of our bylaws relating to the number of directors and election and removal of a director from office, may
only be modified by a resolution adopted by two-thirds of the votes held by our shareholders present, represented by a proxy or voting by mail
at the meeting.

Holders of our ADSs may not be able to exercise their right to vote the ordinary shares underlying such ADSs.

Holders of our ADSs may exercise voting rights with respect to the ordinary shares represented by the ADSs only in accordance with the provisions of the
amended and restated deposit agreement. The amended and restated deposit agreement provides that, upon receipt of notice of any meeting of holders of
our ordinary shares, the depositary will fix a record date for the determination of ADS holders who shall be entitled to give instructions for the exercise of
voting rights. Upon timely receipt of notice from us, if we so request, the depositary shall distribute to the holders as of the record date (1) the notice of the
meeting or solicitation of consent or proxy sent by us and (2) a statement as to the manner in which instructions may be given by the holders.

Holders of our ADSs may instruct the depositary of their ADSs to vote the ordinary shares underlying such ADSs. Otherwise, holders of our ADSs will not
be able to exercise voting rights unless they withdraw the ordinary shares underlying the ADSs they hold. However, a holder of our ADSs may not know
about the meeting far enough in advance to withdraw those ordinary shares. If we ask for a holder of our ADSs’ instructions, the depositary, upon timely
notice from us, will notify him or her of the upcoming vote and

39

arrange to deliver our voting materials to him or her. We cannot guarantee to any holder of ADSs that he or she will receive the voting materials in time to
ensure that he or she can instruct the depositary to vote his or her ordinary shares or to withdraw his or her ordinary shares so that he or she can vote them
directly. Pursuant to the terms of our amended deposit agreement, in certain situations if, in the opinion of our management, the matter is not materially
adverse to the interests of our shareholders, we may request that if the depositary does not receive timely voting instructions from a holder of ADSs, the
depositary may give a proxy to a person designated by us to vote, in its discretion, the ordinary shares underlying the unvoted ADSs, as long as the matter
is  endorsed  by  our  board.  In  addition,  the  depositary  and  its  agents  are  not  responsible  for  failing  to  carry  out  voting  instructions  or  for  the  manner  of
carrying out voting instructions. This means that a holder of ADSs may not be able to exercise his or her right to vote, and there may be nothing he or she
can do if the ordinary shares underlying his or her ADSs are not voted as he or she requested.

The  right  as  a  holder  of  ADSs  to  participate  in  any  future  preferential  subscription  rights  or  to  elect  to  receive  dividends  in  shares  may  be  limited,
which may cause dilution to the holders of our ADSs.

Under French law, if we issue additional securities for cash, current shareholders will have preferential subscription rights for these securities on a pro rata
basis unless they waive those rights at an extraordinary meeting of our shareholders (by a two-thirds majority vote) or individually by each shareholder.
However, our ADS holders in the United States will not be entitled to exercise or sell such rights unless we register the rights and the securities to which
the rights relate under the Securities Act or an exemption from the registration requirements is available. In addition, the amended and restated deposit
agreement provides that the depositary will not make rights available to holders of our ADSs unless the distribution to ADS holders of both the rights and
any related securities are either registered under the Securities Act or exempted from registration under the Securities Act. Further, if we offer holders of
our ordinary shares the option to receive dividends in either cash or shares, under the amended and restated deposit agreement the depositary may require
satisfactory  assurances  from  us  that  extending  the  offer  to  holders  of  our  ADSs  does  not  require  registration  of  any  securities  under  the  Securities  Act
before making the option available to holders of our ADSs. We are under no obligation to file a registration statement with respect to any such rights or
securities  or  to  endeavor  to  cause  such  a  registration  statement  to  be  declared  effective.  Moreover,  we  may  not  be  able  to  establish  an  exemption  from
registration  under  the  Securities  Act.  Accordingly,  ADS  holders  may  be  unable  to  participate  in  our  rights  offerings  or  to  elect  to  receive  dividends  in
shares and may experience dilution in their holdings. In addition, if the depositary is unable to sell rights that are not exercised or not distributed or if the
sale is not lawful or reasonably practicable, it will allow the rights to lapse, in which case holders of our ADSs will receive no value for these rights.

Holders of our ADSs may be subject to limitations on the transfer of such ADSs and the withdrawal of the underlying ordinary shares.

ADSs, which may be evidenced by ADRs, are transferable on the books of the depositary. However, the depositary may close its books at any time or from
time to time when it deems expedient in connection with the performance of its duties. The depositary may refuse to deliver, transfer or register transfers of
ADSs generally when our books or the books of the depositary are closed, or at any time if we or the depositary think it is advisable to do so because of any
requirement  of  law,  government  or  governmental  body,  or  under  any  provision  of  the  amended  and  restated  deposit  agreement,  or  for  any  other  reason
subject to an ADS holder’s right to cancel such ADSs and withdraw the underlying ordinary shares. Temporary delays in the cancellation of such ADSs and
withdrawal  of  the  underlying  ordinary  shares  may  arise  because  the  depositary  has  closed  its  transfer  books  or  we  have  closed  our  transfer  books,  the
transfer of ordinary shares is blocked to permit voting at a shareholders’ meeting or we are paying a dividend on our ordinary shares. In addition, a holder
of ADSs may not be able to cancel his or her ADSs and withdraw the underlying ordinary shares when he or she owes money for fees, taxes and similar
charges  and  when  it  is  necessary  to  prohibit  withdrawals  in  order  to  comply  with  any  laws  or  governmental  regulations  that  apply  to  ADSs  or  to  the
withdrawal of ordinary shares or other deposited securities.

As a foreign private issuer, we are exempt from a number of rules under the U.S. securities laws and are permitted to file less information with the SEC
than a U.S. company. This may limit the information available to holders of our ADSs or ordinary shares.

We are a foreign private issuer, as defined in the SEC’s rules and regulations and, consequently, we are not subject to all of the disclosure requirements
applicable to public companies organized within the United States. For example, we are exempt from certain rules under the U.S. Securities Exchange Act
of 1934, as amended, or the Exchange Act, that regulate disclosure obligations and procedural requirements related to the solicitation of proxies, consents
or  authorizations  applicable  to  a  security  registered  under  the  Exchange  Act,  including  the  U.S.  proxy  rules  under  Section  14  of  the  Exchange  Act.  In
addition,  our  officers  and  directors  are  exempt  from  the  reporting  and  “short-swing”  profit  recovery  provisions  of  Section  16  of  the  Exchange  Act  and
related rules with respect to their purchases and sales of our securities. Moreover, while we currently make annual and semi-annual filings with respect to
our listing on Euronext Paris and expect to continue to file such reports, we are not required to file periodic reports and financial statements with the SEC
as frequently or as promptly as U.S. public companies and we are not required to file quarterly reports on

40

Form 10-Q or current reports on Form 8-K under the Exchange Act. Accordingly, there is less publicly available information concerning our company than
there would be if we were a U.S. domestic issuer.

As  a  foreign  private  issuer,  we  are  permitted  and  we  follow  certain  home  country  practices  in  relation  to  corporate  governance  matters  that  differ
significantly from Nasdaq’s corporate governance standards. These practices may afford less protection to shareholders than they would enjoy if we
complied fully with the corporate governance standards of the Nasdaq Global Select Market.

As a foreign private issuer listed on the Nasdaq Global Select Market, we are subject to Nasdaq’s corporate governance standards. However, Nasdaq rules
provide  that  foreign  private  issuers  are  permitted  to  follow  home  country  corporate  governance  practices  in  lieu  of  Nasdaq’s  corporate  governance
standards as long as notification is provided to Nasdaq of the intention to take advantage of such exemptions. We currently rely on exemptions for foreign
private  issuers  and  follow  French  corporate  governance  practices  in  lieu  of  Nasdaq’s  corporate  governance  standards,  to  the  extent  possible.  Certain
corporate governance practices in France, which is our home country, may differ significantly from Nasdaq corporate governance standards. For example,
as a French company, neither the corporate laws of France nor our bylaws require a majority of our directors to be independent and we can include non-
independent directors as members of our remuneration committee, and our independent directors are not required to hold regularly scheduled meetings at
which only independent directors are present.

We are also exempt from provisions set forth in Nasdaq rules which require an issuer to provide in its bylaws for a generally applicable quorum, and that
such quorum may not be less than one-third of the outstanding voting stock. Consistent with French law, our bylaws provide that a quorum requires the
presence  of  shareholders  having  at  least  (1)  20%  of  the  shares  entitled  to  vote  in  the  case  of  an  ordinary  shareholders’  general  meeting  or  at  an
extraordinary shareholders’ general meeting where shareholders are voting on a capital increase by capitalization of reserves, profits or share premium, or
(2) 25% of the shares entitled to vote in the case of any other extraordinary shareholders’ general meeting.

As a foreign private issuer, we are required to comply with Rule 10A-3 of the Exchange Act, relating to audit committee composition and responsibilities.
Under French law, the audit committee may only have an advisory role and appointment of our statutory auditors, in particular, must be decided by the
shareholders at our annual meeting.

Therefore, our shareholders may be afforded less protection than they otherwise would have under Nasdaq’s corporate governance standards applicable to
U.S. domestic issuers.

We are an “emerging growth company” under the JOBS Act and are able to avail ourselves of reduced disclosure requirements applicable to emerging
growth companies, which could make our ADSs less attractive to investors.

We  are  an  “emerging  growth  company,”  as  defined  in  the  U.S.  Jumpstart  Our  Business  Startups  Act  of  2012,  or  the  JOBS  Act,  and  we  intend  to  take
advantage  of  certain  exemptions  from  various  reporting  requirements  that  are  applicable  to  other  public  companies  that  are  not  “emerging  growth
companies,” including not being required to comply with the auditor attestation requirements of Section 404(b) of the Sarbanes-Oxley Act of 2002, or the
Sarbanes-Oxley Act, and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and shareholder approval of
any golden parachute payments not previously approved. In addition, Section 107 of the JOBS Act also provides that an emerging growth company can
take  advantage  of  the  extended  transition  period  provided  in  Section  7(a)(2)(B)  of  the  Securities  Act  for  complying  with  new  or  revised  accounting
standards. We have elected not to take advantage of the extended transition period provided under Section 7(a)(2)(B) of the Securities Act for complying
with new or revised accounting standards. Since IFRS makes no distinction between public and private companies for purposes of compliance with new or
revised accounting standards, the requirements for our compliance as a private company and as a public company are the same.

We cannot predict if holders of our ADSs will find the ADSs less attractive because we may rely on these exemptions. If some holders find the ADSs less
attractive as a result, there may be a less active trading market for the ADSs and the price of the ADSs may be more volatile. We may take advantage of
these reporting exemptions until we are no longer an emerging growth company. We will remain an emerging growth company until the earliest of (i) the
last day of the fiscal year in which we have total annual gross revenue of $1.07 billion or more; (ii) December 31, 2022, which is the last day of our fiscal
year following the fifth anniversary of the date of the completion of our November 2017 global offering; (iii) the date on which we have issued more than
$1.0 billion in nonconvertible debt during the previous three years; and (iv) the date on which we are deemed to be a large accelerated filer under the rules
of the SEC.

We may lose our foreign private issuer status in the future, which could result in significant additional cost and expense.

While we currently qualify as a foreign private issuer, the determination of foreign private issuer status is made annually on the last business day of our
most recently completed second fiscal quarter and, accordingly, the next determination will be made with respect

41

to us on June 30, 2021. In the future, we would lose our foreign private issuer status if we fail to meet the requirements necessary to maintain our foreign
private issuer status as of the relevant determination date. We will remain a foreign private issuer until such time that more than 50% of our outstanding
voting securities are held by U.S. residents and any of the following three circumstances applies: (i) the majority of our executive officers or directors are
U.S. citizens or residents; (ii) more than 50% of our assets are located in the United States; or (iii) our business is administered principally in the United
States.

The regulatory and compliance costs to us under U.S. securities laws as a U.S. domestic issuer would likely be significantly more than costs we incur as a
foreign private issuer. If we lost our foreign private issuer status, we would be required to file periodic reports and registration statements on U.S. domestic
issuer  forms  with  the  SEC,  which  are  more  detailed  and  extensive  in  certain  respects  than  the  forms  available  to  a  foreign  private  issuer.  We  would  be
required under current SEC rules to prepare our financial statements in accordance with U.S. GAAP, rather than IFRS, and modify certain of our policies to
comply  with  corporate  governance  practices  associated  with  U.S.  domestic  issuers.  Such  conversion  of  our  financial  statements  to  U.S.  GAAP  would
involve significant time and cost. In addition, we would lose our ability to rely upon exemptions from certain corporate governance requirements on U.S.
stock exchanges that are available to foreign private issuers such as the ones described herein and exemptions from procedural requirements related to the
solicitation of proxies.

U.S. holders of our ADSs or ordinary shares may suffer adverse tax consequences if we are characterized as a passive foreign investment company.

Based on the composition of our gross income, assets, activities and market capitalization in 2020, the nature of our business and due to fluctuations in our
stock price, we believe that we may have been characterized as a passive foreign investment company, or PFIC, for our taxable year ending December 31,
2020. However, because our PFIC status is subject to a number of uncertainties and it is very early in the year, neither we nor our tax advisors can provide
any assurances with respect to our PFIC status for the prior, current, or any future taxable year. Moreover, because the calculation of the value of our assets
may  be  based  in  part  on  the  value  of  our  ADSs,  the  value  of  which  may  fluctuate  considerably,  our  PFIC  status  may  change  from  year  to  year  and  is
difficult to predict. A separate determination must be made after the close of each taxable year as to whether we are a PFIC for that year. As a result, our
PFIC status may change from year to year and we have not yet made any determination as to our expected PFIC status for the current year. Our status as a
PFIC will depend on the composition of our income (including whether we receive certain non-refundable grants or subsidies and whether such amounts
and reimbursements of certain refundable research tax credits will constitute gross income for purposes of the PFIC income test) and the composition and
value of our assets, which may be determined in large part by reference to the market value of the ADSs and our ordinary shares, which may be volatile,
from time to time. Our status may also depend, in part, on how quickly we utilize the cash proceeds from our global offerings in our business. Our U.S.
counsel expresses no opinion regarding our conclusions or our expectations regarding our PFIC status.

Generally, if, for any taxable year, at least 75% of our gross income is passive income, or at least 50% of the value of our assets is attributable to assets that
produce passive income or are held for the production of passive income, including cash, we will be characterized as a PFIC for U.S. federal income tax
purposes. For purposes of these tests, passive income includes dividends, allocations of income with respect to any partnership, interest, and gains from the
sale or exchange of investment property and rents and royalties other than rents and royalties which are received from unrelated parties in connection with
the  active  conduct  of  a  trade  or  business.  If  we  are  characterized  as  a  PFIC,  U.S.  holders  of  the  ADSs  may  suffer  adverse  tax  consequences,  including
having gains realized on the sale of the ADSs treated as ordinary income, rather than capital gain, the loss of the preferential rate applicable to dividends
received on the ADSs by individuals who are U.S. holders, and having interest charges apply to distributions by us and the proceeds of sales of the ADSs.
See “Item 10. E. Taxation—Material U.S. Federal Income Tax Considerations—Passive Foreign Investment Company Considerations.”

If  a  U.S.  holder  is  treated  as  owning  at  least  10%  of  our  ADSs  or  ordinary  shares,  such  holder  may  be  subject  to  adverse  U.S.  federal  income  tax
consequences.

If  a  U.S.  holder  (as  defined  below  under  “Item  10.  E.  Taxation—Material  U.S.  Federal  Income  Tax  Considerations”)  is  treated  as  owning  (directly,
indirectly or constructively) at least 10% of the value or voting power of our ADSs or ordinary shares, such U.S. holder will be treated as a “United States
shareholder”  with  respect  to  each  “controlled  foreign  corporation”  in  our  group  (if  any).  Because  our  group  includes  at  least  one  U.S.  subsidiary
(ERYTECH Pharma, Inc.), if we were to form or acquire any non-U.S. subsidiaries in the future, they may be treated as controlled foreign corporations. A
U.S. shareholder of a controlled foreign corporation will be required to annually report and include in its U.S. taxable income its pro rata share of “Subpart
F income,” “global intangible low-taxed income” and investments in U.S. property by the controlled foreign corporations, regardless of whether we make
any  distributions.  An  individual  that  is  a  U.S.  shareholder  with  respect  to  a  controlled  foreign  corporation  generally  would  not  be  allowed  certain  tax
deductions or foreign tax credits that would be allowed to a U.S. shareholder that is a U.S. corporation. We cannot provide any assurances that we will
assist  investors  in  determining  whether  any  non-U.S.  subsidiaries  that  we  may  form  or  acquire  in  the  future  would  be  treated  as  a  controlled  foreign
corporation or whether such investor would be treated as a U.S. shareholder with respect to any of such controlled foreign corporations. Further, we cannot
provide any assurances that we will furnish to any U.S.

42

shareholder the information that may be necessary to comply with the reporting and tax paying obligations discussed above. Failure to comply with these
reporting and tax paying obligations may subject you to significant monetary penalties and may prevent the statute of limitations with respect to your U.S.
federal  income  tax  return  for  the  year  for  which  reporting  was  due  from  starting.  U.S.  holders  should  consult  their  tax  advisors  regarding  the  potential
application of these rules to their investment in our ADSs or ordinary shares.

We have identified material weaknesses in our internal control over financial reporting. If we are unable to remediate these material weaknesses, or if
we experience additional material weaknesses in the future or otherwise fail to maintain an effective system of internal controls, we may not be able to
accurately or timely report our financial condition or results of operations, which may adversely affect investor confidence in us and, as a result, the
trading price of our ADSs or ordinary shares.

We have identified two material weaknesses in our internal control over financial reporting as of December 31, 2018, which have not been remediated as of
December 31, 2020. A material weakness is a deficiency, or combination of deficiencies, in internal control over financial reporting such that there is a
reasonable possibility that a material misstatement of our financial statements will not be prevented or detected on a timely basis.

If we are unable to remediate these material weaknesses, or if we experience additional material weaknesses in the future or otherwise fail to maintain an
effective system of internal controls, we may not be able to accurately or timely report our financial condition or results of operations, which may adversely
affect investor confidence in us and, as a result, the value of our securities.

In connection with the preparation of our financial results for the year ended December 31, 2018, our management concluded that, as of December 31,
2018, our internal control over financial reporting was not effective as a result of two material weaknesses in our internal control over financial reporting
related to: (i) the monitoring of research and development projects, as controls designed to track actual costs incurred against invoices received were not
operating at a sufficient level of precision due to insufficient personnel with an appropriate level of knowledge and training in internal control over complex
processes; and (ii) the lack of sufficiently developed and documented internal controls for our U.S. subsidiary. We believe these two material weaknesses
concerning (i) the monitoring of research and development projects and (ii) the lack of sufficiently developed and documented internal controls for our U.S.
subsidiary were not fully remediated as of December 31, 2020.

During  the  year  2020,  we  have  deployed  the  following  remediation  efforts  focused  on  improving  our  internal  control  over  financial  reporting  and  to
specifically address the control deficiencies that led to our material weaknesses:

•

•

•

hire a vendor coordinator to reinforce the team dedicated to the monitoring of research and development projects for which process level controls
have not been considered as effective in 2019;

strengthen the controls over our research and development financial information to detect and correct errors and some of which are still in the
process of being implemented;

analyze the existing segregation of duties environment implemented in our U.S. subsidiary, identify potential organizational conflicts due to the
size of the team and when possible define mitigating controls;

• On-going design and implementation of effective controls over certain information technology (“IT”) systems relevant to the preparation of the

consolidated financial statements, with a specific focus on users’ access controls.

We  plan  to  continue  to  deploy  the  following  remediation  efforts  focused  on  improving  our  internal  control  over  financial  reporting  and  to  specifically
address the control deficiencies that led to our material weaknesses:

•

•

•

reinforce our U.S. finance team by the recruitment of a new staff accountant to ensure a proper segregation of duties at an operational level.

keep implementing effective controls over certain information technology (“IT”) systems relevant to the preparation of the consolidated financial
statements.

finalize  the  implementation  and  the  rolling  out  of  the  controls  over  our  research  and  development  financial  information  to  detect  and  correct
errors.

We believe that these activities will further support the remediation of these material weaknesses. However, we cannot assure you that the measures we
have taken to date, and actions we may take in the future, will be sufficient to remediate the control deficiencies that led to our material weaknesses in our
internal  control  over  financial  reporting  or  that  they  will  prevent  or  avoid  potential  future  material  weaknesses.  In  addition,  our  independent  registered
public accounting firm has not performed an evaluation of our internal control over financial reporting in accordance with the provisions of the Sarbanes-
Oxley Act because no such evaluation has been

43

required. Had our independent registered public accounting firm performed an evaluation of our internal control over financial reporting in accordance with
the provisions of the Sarbanes-Oxley Act, additional material weaknesses may have been identified. If we are unable to successfully remediate our existing
or any future material weaknesses in our internal control over financial reporting, or identify any additional material weaknesses, the accuracy and timing
of our financial reporting may be adversely affected, we may be unable to maintain compliance with securities law requirements regarding timely filing of
reports in addition to applicable stock exchange listing requirements, investors may lose confidence in our financial reporting, and the trading price of our
ADSs or ordinary shares may decline as a result.

If we fail to establish and maintain proper internal controls, our ability to produce accurate financial statements or comply with applicable regulations
could be impaired.

We are required, pursuant to Section 404(a) of the Sarbanes-Oxley Act, or Section 404(a), to furnish a report by management on, among other things the
effectiveness of our internal control over financial reporting on an annual basis. This assessment includes disclosure of any material weaknesses identified
by our management in our internal control over financial reporting. In connection with the preparation of our financial results for the year ended December
31,  2020,  we  identified  two  material  weaknesses  in  our  internal  control  over  financial  reporting.  Our  Management’s  Report  on  Internal  Control  over
Financial Reporting included in this Annual Report describes these material weaknesses and includes our conclusion that our internal controls were not
effective as of the end of the period covered by this Annual Report. While we have established certain procedures and control over our financial reporting
processes, including initiating remediation efforts with respect to the material weaknesses, we cannot assure you that these efforts will prevent restatements
of our financial statements in the future. Although Section 404(b) of the Sarbanes-Oxley Act, or Section 404(b), requires our independent registered public
accounting  firm  to  issue  an  annual  report  that  addresses  the  effectiveness  of  our  internal  control  over  financial  reporting,  we  have  opted  to  rely  on  the
exemptions provided in the JOBS Act, and consequently will not be required to comply with SEC rules that implement Section 404(b) until such time as
we are no longer an EGC.

The presence of material weaknesses could result in financial statement errors which, in turn, could lead to errors in our financial reports, delays in our
financial reporting, which could require us to restate our operating results or our auditors may be required to issue a qualified audit report. We might not
identify one or more material weaknesses in our internal controls in connection with evaluating our compliance with Section 404(a). In order to maintain
and improve the effectiveness of our disclosure controls and procedures and internal control over financial reporting, we will need to expend significant
resources and provide significant management oversight. Implementing any appropriate changes to our internal control may require specific compliance
training of our directors and employees, entail substantial costs in order to modify our existing accounting systems, take a significant period of time to
complete and divert management’s attention from other business concerns. These changes may not, however, be effective in achieving and maintaining the
adequacy of our internal control.

If either we are unable to conclude that we have effective internal control over financial reporting, as is the case currently, or, at the appropriate time, our
independent auditors are unwilling or unable to provide us with an unqualified report on the effectiveness of our internal control over financial reporting as
required  by  Section  404(b),  investors  may  lose  confidence  in  the  accuracy  or  completeness  of  our  financial  reports,  the  price  of  our  ADSs  or  ordinary
shares could decline and we may be subject to litigation, sanctions or investigations by regulatory authorities, including the SEC and Nasdaq. Failure to
remediate  any  material  weakness  in  our  internal  control  over  financial  reporting,  or  to  maintain  other  effective  control  systems  required  of  public
companies, could also restrict our future access to the capital markets. In addition, if we are unable to meet the requirements of Section 404, we may not be
able to remain listed on Nasdaq.

Item 4. Information on the Company.

4.A.History and Development of the Company

Our  legal  and  commercial  name  is  ERYTECH  Pharma  S.A.  We  were  incorporated  as  a  société  par  actions  simplifiée,  or  S.A.S.,  under  the  laws  of  the
French Republic on October 26, 2004 and became a société anonyme, or S.A., on September 29, 2005. We are registered at the Register of Commerce and
Companies  of  Lyon  (Registre  du  commerce  et  des  sociétés)  under  the  number  479  560  013.  In  April  2014,  we  incorporated  our  wholly-owned  U.S.
subsidiary,  ERYTECH  Pharma,  Inc.  In  February  2016,  we  opened  our  U.S.  office  in  Cambridge,  Massachusetts  and  in  2018,  we  entered  into  a  lease
agreement for a U.S. manufacturing facility in Princeton, New Jersey, United States, which has been operational since the fourth quarter of 2019.

Our principal executive offices are located at 60 Avenue Rockefeller, 69008 Lyon, France. Our telephone number at our principal executive offices is +33 4
78 74 44 38. Our agent for service of process in the United States is ERYTECH Pharma, Inc. Our website address is www.erytech.com. The reference to
our  website  is  an  inactive  textual  reference  only  and  information  contained  in,  or  that  can  be  accessed  through,  our  website  or  any  other  website  cited
herein is not part of this Annual Report. The U.S. Securities and Exchange Commission maintains a website (www.sec.gov) that contains reports, proxy
and information statements and other information regarding registrants, such as ERYTECH, that file electronically with the SEC. We expect our capital
expenditures to

44

increase in absolute terms in the near term as we continue to advance our research and development programs, prepare for commercialization, if approved,
and grow our operations. For the near future, these investments will be located in France where our corporate headquarters and our primary production
facility are currently located, and in the United States for our secondary production facility.

Our  actual  capital  expenditures  for  the  years  ended  December  31,  2018,  2019  and  2020  amounted  to  €14.2  million,  €12.1  million  and  €0.4  million,
respectively. These capital expenditures were related primarily to the buildup of our fixed assets for our pharmaceutical facility and laboratory and to a
lesser extent to the purchase of office and computer equipment. We do not capitalize clinical research and development costs until we obtain marketing
authorization for a product candidate.

4.B.Business Overview

4.B.1. Overview

We  are  a  clinical-stage  biopharmaceutical  company  developing  innovative  therapies  for  severe  forms  of  cancer  and  orphan  diseases.  Leveraging  our
proprietary ERYCAPS platform, which uses a novel technology to encapsulate therapeutic drug substances inside erythrocytes, or red blood cells, or RBC.
We are developing a pipeline of product candidates for patients with high unmet medical needs. Our lead product candidate eryaspase, which we also refer
to  as  GRASPA,  targets  the  metabolism  of  cancer  cells  by  depriving  the  cells  of  asparagine,  an  amino  acid  necessary  for  their  survival  and  critical  in
maintaining  the  cells’  rapid  growth  rate.  We  are  currently  developing  eryaspase  for  the  treatment  of  severe  tumors,  including  pancreatic  cancer,  acute
lymphoblastic leukemia, or ALL, and triple negative breast cancer, or TNBC.

In 2018, we initiated a pivotal Phase 3 clinical trial of eryaspase for the treatment of second-line advanced pancreatic cancer patients. Patient enrollment in
this trial, which we refer to as the TRYbeCA-1 trial, began in September 2018 in Europe. The U.S. Food and Drug Administration, or FDA, approved our
Investigational New Drug, or IND, application in May 2019, and the TRYbeCA-1 trial opened for patient enrollment in the United States in October 2019.
We  have  obtained  clinical  trial  authorizations  in  the  United  States  and  from  11  European  countries  and  have  conducted  the  clinical  trial  at  close  to  90
clinical sites in Europe and in the United States. In April 2020, the FDA granted eryaspase Fast Track Designation as a potential second-line treatment for
patients with metastatic pancreatic cancer. Eryaspase has also received orphan drug designation, or ODD, for pancreatic cancer in both the United States
and Europe. We completed the patient enrollment in the TRYbeCA-1 trial in December 2020. A total of 512 patients participated in the trial, slightly above
the target enrollment of 482 patients. The trial recently accrued the required number of events for the planned interim superiority analysis, to be performed
by an Independent Data Monitoring Committee, or IDMC. We published the results from the interim superiority analysis from the TRYbeCA-1 trial on
February 8, 2021. Based on such analysis, the trial will continue toward a final analysis, expected in the fourth quarter 2021.

We  are  also  supporting  a  proof-of-concept  investigator-sponsored,  or  IST,  Phase  1  clinical  trial,  which  we  refer  to  as  the  rESPECT  trial,  evaluating  the
safety  and  tolerability  of  eryaspase  in  combination  with  FOLFIRINOX  for  the  treatment  of  first-line  pancreatic  cancer  patients,  as  well  as  in  other
indications of pancreatic cancer. The Georgetown Lombardi Comprehensive Cancer Center is the sponsor of this trial. We announced the enrollment of the
first  patient  in  this  trial  in  January  2021.  Two  more  patients  were  enrolled  in  February,  completing  the  first  treatment  cohort.  The  trial  is  expected  to
determine the maximum tolerated dose by the end of 2021.

We launched a proof-of-concept Phase 2 clinical trial in TNBC in Europe, which we refer to as the TRYbeCA-2 trial, in the fourth quarter of 2018. The
trial is enrolling patients in three European countries. We expect to report first results from the TRYbeCA-2 trial in the fourth quarter of 2021.

We are also supporting a Phase 2 clinical trial initiated and sponsored by investigators of the Nordic Society of Pediatric Hematology and Oncology, or
NOPHO.  This  trial  is  evaluating  the  safety  and  pharmacological  profile  of  eryaspase  in  ALL  patients,  who  developed  hypersensitivity  reactions  to
pegylated L-asparaginase. In December 2020, positive results from the trial were presented at the American Society of Hematology 2020 Annual Meeting.
The trial was conducted at 21 clinical sites in the Nordic and Baltic countries of Europe and enrolled 55 patients. The primary objective of the trial was
enzyme activity of eryaspase. The endpoint was met. We are in discussions with the FDA to evaluate the possibility of pursuing regulatory approval for
eryaspase in the United States in this indication based on this investigator sponsored Phase 2 trial. We expect to provide an update in the first half of 2021.
If the potential for an approval can be confirmed, we anticipate filing a BLA in the second half of 2021.

In addition to the encapsulation of L-asparaginase, we believe that our ERYCAPS platform has broad potential application and can be used to encapsulate a
wide  range  of  therapeutic  agents  for  which  long-circulating  therapeutic  activity  or  rapid  and  specific  targeting  is  desired.  For  example,  we  developed
erymethionase,  a  preclinical  product  candidate  which  encapsulates  methionine-γ-lyase  in  RBC  and  is  designed  to  target  the  amino  acid  metabolism  of
cancer  cells  and  induce  tumor  starvation.  We  intend  to  continue  to  work  on  the  development  of  erymethionase  as  well  as  potential  other  therapeutic
strategies based on methionine depletion, depending on financial resources and business strategy.We have also developed two preclinical programs aimed
at maximizing the value creation potential of

45

our ERYCAPS program, which we believe may result in attractive partnering opportunities: enzyme replacement and immune modulation. As part of our
value creation strategy, in June 2019, we entered into a collaboration with SQZ Biotechnologies, a cell therapy company developing novel treatments in
multiple  therapeutic  areas,  to  focus  on  the  development  of  novel  red  blood  cell-based  therapeutics  for  the  treatment  of  immuno-oncology  and  tolerance
induction.

Corporate Information

We were incorporated in 2004. In May 2013, we completed the initial public offering of our ordinary shares on Euronext Paris. In November 2017, we
completed a global public offering, consisting of a U.S. initial public offering of American Depositary Shares, or ADSs, each representing one ordinary
share,  and  a  concurrent  private  placement  in  Europe  and  other  countries  outside  of  the  United  States  and  Canada  of  our  ordinary  shares.  Our  ordinary
shares  are  listed  on  Euronext  Paris  under  the  ticker  symbol  “ERYP”  and  our  ADSs  are  listed  on  the  Nasdaq  Global  Select  Market  under  the  symbol
“ERYP.”

4.B.2. Our Strategy

Our mission is to help patients live better, longer. Our vision is to be the leader in red blood-cell based therapeutics to treat severe forms of cancer and
orphan diseases. The key elements of our strategy to achieve this goal include the following:

Advance the development of eryaspase for the treatment of pancreatic cancer Following positive Phase 2b clinical trial results regarding eryaspase as
second-line treatment of advanced pancreatic cancer, we launched TRYbeCA-1, a pivotal Phase 3 clinical trial of eryaspase, also as a second-line treatment
for advanced pancreatic cancer, in Europe and in the United States. Patient enrollment began in September 2018 and was completed in December 2020. A
total of 512 patients participated in the trial. An interim superiority analysis was conducted by an independent data monitoring committee and announced
on February 8, 2021. Based on such analysis, the trial will continue toward a final analysis, expected in the fourth quarter 2021. In view of broadening the
indication scope of eryaspase to other pancreatic cancer settings such as first-line metastatic and locally advanced pancreatic cancer, we are supporting a
proof-of-concept  investigator-sponsored  Phase  1  clinical  trial,  evaluating  the  safety  eryaspase  in  combination  with  FOLFIRINOX.  The  Georgetown
Lombardi Comprehensive Cancer Center is the sponsor of the trial. This rESPECT trial is expected to determine the maximum tolerated dose by the end of
2021.

Develop eryaspase for the treatment of other oncology indications Based on the results of scientific publications and preclinical studies as well as our
clinical trials to date, we believe that targeting the asparagine metabolism of cancer cells could potentially slow down or halt the growth of different tumor
types. Based on these results, we are conducting other clinical trials and are planning to seek regulatory authorizations for eryaspase for the treatment of
selected oncology indications beyond pancreatic cancer. Current development tracks are in:

• ALL: Following positive results in December 2020 of a Phase 2 clinical trial initiated and sponsored by NOPHO, we are currently evaluating
the possibility of pursuing regulatory approval in the United States based on this investigator sponsored Phase 2 trial. We are in discussions with
the FDA regarding our planned BLA submission of eryaspase for the treatment ALL and anticipate to provide an update in the first half of 2021.
If the potential for an approval can be confirmed, we expect filing a BLA in the second half of 2021.

•

TNBC:  we  continue  our  Phase  2  proof-of-concept  clinical  trial  initiated  in  Europe  in  the  fourth  quarter  of  2018. The  trial  is  now  enrolling
patients in three European countries and we expect to report first results in the fourth quarter of 2021.

Leverage our ERYCAPS platform to develop additional innovative and novel red blood-cell based therapeutics targeting cancer and orphan diseases In
addition  to  encapsulating  L-asparaginase,  the  active  ingredient  in  eryaspase,  we  plan  to  leverage  the  broad  applicability  of  our  ERYCAPS  platform  to
develop additional product candidates that use other therapeutic drug substances. We developed at a preclinical stage erymethionase, methionine-γ-lyase, or
MGL,  encapsulated  in  red  blood  cells,  to  target  methionine-dependent  cancer  cells  and  induce  tumor  starvation.  We  intend  to  continue  to  work  on  the
development of our methionine depletion program in the future, subject to future financial resources and business strategy, but are not currently devoting
significant  financial  resources  due  to  other  strategic  priorities.  We  are  also  evaluating  other  cancer  metabolism  targeting  enzymes  such  as  arginine-
deiminase. In addition to our developments in cancer metabolism, we are also evaluating other therapeutic approaches such as cancer immunotherapy and
enzyme replacement therapies for metabolic diseases in view of potentially establishing partnering options. To support this strategy, we intend to continue
to seek robust worldwide intellectual property protection for our ERYCAPS platform and our resulting product candidates.

Execute on research and development and commercialization opportunities that maximize the value of our proprietary ERYCAPS platform We seek to
maximize  shareholder  value  from  our  proprietary  ERYCAPS  platform  technology  through  a  combination  of  in-house  development  and  well-selected
partnering opportunities in development and commercialization. In some instances, we may elect to continue development and commercialization activities
through the expansion of our in-house capabilities, but we will also

46

evaluate and pursue collaborative arrangements with third parties for the development and distribution of our product candidates for specified indications
and  in  specified  territories  where  appropriate.  For  example,  in  June  2019,  we  entered  into  a  collaboration  with  SQZ  Biotechnologies  for  the  immune
modulation  program.  We  may  also  explore  co-development  or  out-licenses  of  our  platform  technology  to  third  parties  and  the  creation  of  spin-out
companies. As we move our product candidates through development toward regulatory approval in the United States and Europe, we will evaluate several
options  for  each  product  candidate’s  commercialization  strategy.  These  options  include  building  our  own  internal  sales  force  and  distribution  units  or
entering into collaborations with third parties for the distribution and marketing of approved products.

4.B.3. Our ERYCAPS Platform Technology

Our ERYCAPS platform uses our proprietary technology to entrap active drug substances inside red blood cells using reversible hypotonic and hypertonic
osmotic stress. Our platform technology uses transfusion-grade, standard packed red blood cells of all four blood groups (O, A, B and AB) from blood
donors  with  a  specific  blood  type  which  we  obtain  from  blood  banks.  We  match  the  red  blood  cells  used  to  the  blood  type  of  the  patient  receiving
treatment. To allow the therapeutic compounds to enter into the red blood cells, we subject the red blood cells to a hypotonic solution. This causes swelling
of cells and opening of pores in the cellular membrane. At this time, therapeutic molecules can enter the red blood cells. Once the desired concentration of
molecules is reached inside the red blood cells, we subject the red blood cells to a hypertonic solution to restore the osmotic pressure to normal. This step
causes water to flow out of the cell and the pores to close, rendering the cellular membrane impermeable to molecules above a specific size, including the
molecules that have been trapped inside the cell.

The extent to which a red blood cell can swell, known as osmotic fragility, is not uniform and varies between packages of red blood cells. When we obtain
a package of red blood cells from a blood bank, we measure a number of key hematological parameters, including the osmotic fragility of the particular
sample. Based on the level of osmotic fragility measured, we are able to calculate the specific amount of osmotic pressure to apply in order to achieve the
desired  concentration  of  drug  substance  in  each  production  batch.  This  patent-protected  process  allows  us  to  reduce  variations  in  the  amount  of  drug
substance to be encapsulated, which ensures that quantifiable amounts of drug substance can be captured in each batch. Our expertise in understanding
osmotic fragility and optimizing the red blood cell encapsulation parameters is the cornerstone of our proprietary ERYCAPS platform.

We believe that our ERYCAPS platform technology is an innovative approach that offers several key potential benefits:

•

Prolonged duration of activity. Red blood cells are biocompatible carriers that have a half-life of approximately one month in the body, and this
duration  of  activity  appears  not  to  be  significantly  affected  by  our  proprietary  encapsulation  process.  This  long  half-life,  coupled  with  the
protection from the cellular membrane, allows encapsulated therapeutic drug substances to remain in the body longer, thereby increasing the
duration  of  their  therapeutic  activity  and  their  potential  efficacy  with  lower  dosages  and  fewer  injections.  In  the  case  of  L-asparaginase,
encapsulation  of  red  blood  cells  has  been  shown  in  our  clinical  trials  to  extend  the  half-life  of  free-form  L-asparaginase  from  one  day  to
approximately two to three weeks.

• Decreased risk of side effects. The red blood cell membrane protects the body from toxicities associated with the trapped drug substance, which

reduces the potential for adverse side effects from the drug.

• High reproducibility with rapid turnaround on commercial scale. Our encapsulation process is automated and is designed to produce batches
of  loaded  red  blood  cells  in  a  highly  reproducible,  reliable  and  rapid  manner.  At  our  cGMP-certified  production  facilities,  the  process  for
delivering eryaspase to patients typically takes approximately 24 hours from the start of production to delivery of the product candidate to the
hospital. We have produced over  5,100  bags  of  eryaspase  to  date  for  use  in  clinical  trials,  and  we  estimate  our  current  production  facilities,
including our expanded Lyon facilities and our newly constructed U.S. facility in Princeton, New Jersey, which has been operational since the
fourth quarter of 2019 will be sufficient to establish supply for our ongoing Phase 2 and Phase 3 clinical trials, as well as anticipated initial
commercial needs of eryaspase, if we receive the appropriate marketing authorizations.

•

•

Stability  and  ease  of  administration.  After  manufacturing  and  release  of  the  product,  eryaspase  has  shown  to  remain  stable  for  five  days  in
refrigeration followed by six hours at room temperature. This allows efficient transportation to the hospitals where the patients are treated, as
well as flexibility in the timing of the administration to the patients.

Broad applicability. Our initial efforts have focused on encapsulating enzymes, such as L-asparaginase, that deplete nutrients necessary for the
growth and proliferation of tumor cells, resulting in their starvation and death. Based on our preclinical studies and clinical experience to date,
we believe that a variety of additional therapeutic molecules can be encapsulated within red blood cells to induce tumor starvation, both for
blood cancers and solid tumors, and to develop cancer immunotherapies and enzyme replacement therapies.

Our intellectual property portfolio contains issued patents and patent applications in the United States and foreign countries, including 15 patent families
directed to our production process, our ERYCAPS  platform, our product candidates, methods of use and/or

®

47

treatment, and related diagnostic tests. Our core patent covers eryaspase in the United States until the end of 2029, with potential extension to the end of
2034, and in Europe until 2025, with a potential extension to 2030. We have exclusively in-licensed one patent family from Radboud University in the
Netherlands relating to synergistic combinations of amino acid depletion agents.

4.B.4. Our Pipeline

4.B.5. Our Lead Product Candidate Eryaspase—A Unique Approach to Cancer Treatment

Eryaspase,  our  first  product  candidate  developed  using  our  proprietary  ERYCAPS  platform  consists  of  the  enzyme  L-asparaginase  encapsulated  inside
erythrocytes, or red blood cells. L-asparaginase breaks down asparagine, a naturally occurring amino acid, into L-aspartic acid and ammonia. Asparagine is
produced by healthy cells in the body for their own use in protein synthesis. Cancer cells also need asparagine to grow and proliferate, even more than
normal cells, but most cancer cells cannot produce enough asparagine and must rely on circulating asparagine to survive. Injection of L-asparaginase, either
by intravenous or intramuscular modes of administration, can lower asparagine levels throughout the body, thereby depriving cancer cells of a key nutrient
and causing them to starve and ultimately die. The use of L-asparaginase to deplete asparagine is a well-established treatment for ALL patients, and in
particular,  pediatric  ALL  patients.  However,  important  side  effects  including  allergies,  coagulation  disorders,  pancreatic  and  hepatic  toxicities  can  limit
treatment  compliance,  particularly  in  adults,  limiting  the  potential  use  of  current,  non-encapsulated  L-asparaginases  beyond  ALL.  We  believe  that
encapsulating L-asparaginase in red blood cells, utilizing our proprietary ERYCAPS platform, reduce the side effects of L-asparaginase, which we believe
broadens the potential use of L-asparaginase outside the pediatric ALL setting, including for the treatment of aggressive solid and liquid tumors. Eryaspase
has been administered to more than 630 patients in clinical trials and compassionate use programs to date.

Eryaspase  is  administered  by  intravenous  infusion.  Once  administered,  the  red  blood  cells  containing  L-asparaginase  circulate  in  the  bloodstream  and
remove  asparagine  mainly  through  a  mechanism  of  active  transportation  of  asparagine  into  the  red  blood  cells.  Active  transporters  for  asparagine  are
present in the membrane of red blood cells. They cause normal red blood cells to contain two to three times more asparagine within the cell than in the
surrounding  plasma.  When  L-asparaginase  is  encapsulated  in  the  red  blood  cells,  it  causes  the  inner  concentration  of  asparagine  to  decrease,  which
activates the natural mechanism of the red blood cell to draw asparagine circulating in the blood plasma into the red blood cell. This asparagine is rapidly
degraded  inside  the  red  blood  cells  as  well.  When  maintained  long  enough,  this  pumping  and  degradation  activity  leads  to  a  systemic  depletion  of
asparagine levels in the bloodstream without releasing L-asparaginase into the bloodstream. The red blood cell membrane also protects the encapsulated L-
asparaginase from antibodies present in the patient’s blood that would substantially lessen or neutralize the enzyme’s activity or cause

48

allergic reactions. As a result, the enzyme can remain active and potentially effective in the red blood cell for a longer period of time, while at the same
time reducing the potential for toxicity and related side effects. Our research indicates that the encapsulation process does not significantly alter the life
span of the red blood cell.

The following diagram illustrates the main mode of action of eryaspase:

Clinical Development of Eryaspase (GRASPA)
The table below sets forth summary information regarding our clinical trials of eryaspase conducted to date.

Completed clinical trials

PHASE

TRIAL
REFERENCE

Metastatic Pancreatic Cancer

# OF
PATIENTS
ENROLLED

AGE

INDICATION

PRIMARY
ENDPOINTS

DOSE

REGION

DESIGN

2b

1

GRASPANC
2013-03

141

18+

Second-line patients
with metastatic
pancreatic
adenocarcinoma

• Efficacy (progression-
free survival or overall
survival) and safety of
eryaspase in
combination with
chemotherapy

100 U/kg

EU

Randomized,
open label,
controlled

GRASPANC
2008-02

12

18+

Second-line

• Determination of the
maximum tolerated
dose (MTD) and
recommended Phase 2
dose

25 /
50 /
100 /
150
U/kg

EU

Non- randomized,
open label

Acute Lymphoblastic Leukemia

2/3

GRASPALL
2009-06

2a

1/2

1/2

1

GRAALL SA2-
2008

GRASPALL
2005-01

GRASPALL
2012-09

GRASPALL
2012-10-EAP

80

1 to 55

Relapsed/refractory • Mean duration (days)

of ASNase activity
>100 U/L

• Incidence of allergic
reactions (induction
phase)

30

55+

First-line

• Efficacy and safety of

eryaspase with
combination therapy
and determination of
the MTD in elderly

24

14

1 to 55

Relapsed/refractory • Determination of the

MTD and
recommended Phase 2
dose

18+

First-line

• Determination of the

18

Up to 55 At risk - all lines

MTD and
recommended Phase 3
dose

• Safety of eryaspase in
combination with
polychemotherapy

150 U/
kg

EU

Randomized,
open label

EU

EU

US

50 /
100 /
150 U/kg

50 /
100 /
150 U/
kg

50 /
100 /
150 /
200 U/
kg

Non-randomized,
open label

Randomized,
open label

Non-
randomized,
open label

150 U/kg

EU

Non-randomized,
open label

PHASE

TRIAL
REFERENCE

Acute Myeloid Leukemia

# OF
PATIENTS
ENROLLED

AGE

INDICATION

PRIMARY
ENDPOINTS

DOSE

REGION

DESIGN

2b

ENFORCE 1

123

65 to 85

First-line, unfit

• Overall survival

100 U/ kg

EU

Multicenter, open
label,
randomized,
controlled

On going clinical trials

PHASE

TRIAL
REFERENCE

Solid Tumors

# OF
PATIENTS
PLANNED

AGE

INDICATION

PRIMARY
ENDPOINTS

DOSE

REGION

DESIGN

1

3

2

STUDY00002008
(rESPECt)

12-18 
(max 21)

18+

TRYbeCA-1

512*

18+

TRYbeCA-2

64

18+

First line patients
with locally
advanced and
metastatic
pancreatic cancer

Second-line patients
with metastatic
pancreatic
adenocarcinoma

Metastatic or locally
recurrent Triple-
Negative Breast
Cancer / 1st line

25 / 50 / 75 /
100 U/Kg

US

Single arm, Open
label

Determination of the
MTD, tolerability and
safety of Eryaspase in
combination with the
dose-modified
FOLFIRINOX

• Overall survival

100 U/kg

EU/US

• Objective response

100 U/kg

EU

rate determined by an
independent
radiological review

Open label,
randomized

Open label,
randomized 1:1
(chemotherapy ±
eryaspase)

Acute Lymphoblastic Leukemia

2

NOPHO

55*

1 to 45

Second-line post
PEG-asparaginase

• PK / PD, safety and
immunogenicity

150 U/kg

EU

Single arm, open
label

*

Enrollment for these clinical trials is completed at the date of this Annual Report. The figures represent the number of patients effectively enrolled.

Eryaspase for the Treatment of Pancreatic Cancer and Other Solid Tumors

Researchers  have  investigated  the  potential  to  target  asparagine  metabolism  in  solid  tumor  indications,  and  based  on  the  observation  that  many  solid
tumors, like lymphoblasts, lack the asparagine synthetase, or ASNS, enzyme, a rationale for the use of asparaginase in solid tumors exists. L-asparaginase
has been shown to have growth inhibitory effects in different solid tumor cell lines and in xenograft models. The toxicity profile of existing asparaginase
products has, however, been prohibitive for their use in patients. Historically, Phase 1 clinical trials conducted by researchers have been modified or halted
because of excess toxicity.

Background and Potential for L-asparaginase as a Treatment for Pancreatic Cancer
We estimate there are approximately 150,000 new cases of pancreatic cancer diagnosed each year in Europe and the United States. Pancreatic cancer is a
particularly aggressive cancer, with a five-year survival rate of less than 10%, and is one of the fastest growing cancer indications. According to estimates
published by the American Cancer Society, pancreatic cancer is currently the fourth largest

cause  of  cancer  deaths  in  the  United  States.  According  to  an  article  published  in  the  scientific  journal  Cancer  Research  in  2014,  pancreatic  cancer  is
projected to surpass colon and breast cancer to become the second largest cause of cancer deaths by 2030. The following table summarizes the number of
estimated cases and deaths in the United States in 2017 and 2030 in various solid tumor indications, as well as the five-year survival rate of each type of
cancer for the years 2006 through 2012.

INDICATION

Lung and bronchus

Pancreas

Liver

Colon and rectum

Breast

Prostate

Bladder

Brain and other nervous system

Oesophagus

Kidney

Ovary

(1)

Refers to female survival rate.

CASES (U.S., IN
THOUSANDS)

DEATHS (U.S., IN
THOUSANDS)

2017

2030

2017

2030

5-YEAR
SURVIVAL
RATE

223 

54 

41 

135 

255 

161 

79 

24 

17 

64 

22 

225 

88 

83 

114 

294 

228 

113 

N/A

N/A

69 

N/A

156 

156 

43 

29 

50 

41 

27 

17 

17 

16 

14 

14 

63 

51 

47 

37 

24 

22 

17 

17 

16 

14 

19 %

9 

18 

66 

91(1)

99 

79 

35 

21 

75 

46 

Completed Phase 1 Clinical Trial of Eryaspase for the Treatment of Pancreatic Cancer

In 2011, we completed an open-label Phase 1 clinical trial in 12 patients with pancreatic cancer at four sites in France. The enrolled patients were separated
into  four  cohorts  of  three  subjects  each.  Eryaspase  was  administered  as  one  injection  of  four  different  doses,  25  Units,  or  U,  per  kilogram,  50  U  per
kilogram, 100 U per kilogram or 150 U per kilogram. The primary endpoint of the trial was the determination of the maximum tolerated dose. Secondary
endpoints  included  assessments  of  safety  and  exploratory  measures  of  efficacy.  No  dose-limiting  toxicities  were  reported,  even  at  the  highest  dose
administered in the trial.

Phase 2b Clinical Trial for Eryaspase for the Treatment of Second-Line Metastatic Pancreatic Cancer

In 2014, we commenced a multi-center, open-label, randomized Phase 2b clinical trial to evaluate the efficacy of eryaspase as a second-line treatment for
patients  with  metastatic  pancreatic  cancer.  The  trial  was  conducted  at  16  sites  in  France  and  performed  in  collaboration  with  the  Groupe  Coopérateur
Multidisciplinaire en Oncologie. Professor Pascal Hammel, a gastroenterologist-oncologist at Beaujon Hospital in Paris, was the principal investigator of
the trial. The original recruitment objective was 90 patients. In February 2016, we elected to continue to enroll patients to increase the statistical power of
the trial. In September 2016, we completed enrollment of 141 patients in this trial. In March 2017, we reported positive top-line results from this trial,
which  also  included  three  data  safety  monitoring  board,  or  DSMB,  safety  reviews.  In  September  2017,  we  presented  the  full  results  of  this  trial  at  the
ESMO Congress in Madrid, Spain and the results of the trial were published in the European Journal of Cancer in November 2019.

Trial Design

In this trial, patients in the active arm were treated with eryaspase in addition to the current standard of chemotherapy, consisting of either gemcitabine or
FOLFOX, depending on which treatment the patient had received as first-line therapy. Patients in the control arm were patients treated with chemotherapy
alone. Patients were randomized at a 2:1 ratio. Prior to enrolling each patient in this trial, we used a diagnostic test to assess the level of ASNS expression
in such patient’s cancer cells. We included both patients with no or low ASNS expression levels and patients with normal or high ASNS expression levels
in the trial.

Endpoints

The co-primary endpoints of the Phase 2b clinical trial were progression-free survival, or PFS, and overall survival, or OS, rates, as measured by the hazard
ratio, or HR, for the patients that were enrolled with no or low ASNS expression levels. The HR represents the chance of events occurring in the treatment
arm relative to the chance of events occurring in the control arm. An HR of one means that there is no difference in survival between the two groups, while
an HR of greater than one or less than one means that survival was better in one of the groups. The outcome of the trial would be considered positive if the
HR was below 0.85 for the low or no ASNS expression group, irrespective of statistical significance. The secondary endpoints of the clinical trial included
overall progression-free

survival and overall survival rates, as measured by HR, in the entire patient population and for the patients enrolled with normal or high ASNS expression
levels, as well as objective response rates and safety outcomes.

Efficacy Results

The primary objectives of the trial were met, with an overall survival HR of 0.65 and a progression-free survival HR of 0.72 in the patient population with
no  or  low  ASNS  expression  levels.  This  sub-group  of  the  patient  population  constituted  approximately  70%  of  the  trial  population.  There  was  also  an
overall survival benefit in the entire patient population, with a statistically significant overall survival HR of 0.60 (nominal p-value = 0.008), meaning that a
reduction in risk of death rate of 40% was observed. The PFS hazard ratio was 0.56 (nominal p-value = 0.011). The graph below shows the Kaplan-Meier
overall survival curve of the trial in the entire patient population. A Kaplan-Meier plot is a graphical statistical method commonly used to describe survival
characteristics. Similar results were observed for progression-free survival.

The baseline characteristics and demographics in the patient population were balanced, and overall survival and progression-free survival results appeared
to be consistent across different sub-groups, including age, gender and prior treatment.

An unexpected finding from these results was that the ASNS expression level in the patients did not appear to be predictive of treatment efficacy. However,
the ASNS expression level does appear to be a prognostic factor. Patients with high ASNS expression levels appear to have a worse prognosis, and their
relative response to eryaspase seems to be relatively higher in this group than the patients with no, low or normal ASNS expression levels. Based on this
finding, we believe future clinical trials may be conducted in the entire patient population, independent of ASNS expression levels.

Ongoing – TRYbeCA-1 Trial

Following  our  positive  Phase  2b  clinical  trial  results,  we  launched  TRYbeCA-1,  a  pivotal  Phase  3  clinical  trial  of  eryaspase  for  second-line  metastatic
pancreatic  cancer.  The  TRYbeCA-1  trial  is  evaluating  eryaspase  in  combination  with  standard  chemotherapy,  compared  to  standard  chemotherapy
(gemcitabine/nab-paclitaxel or an irinotecan-based regimen) alone, in 512 patients. Patients who met the eligibility criteria have been randomized 1-to-1 to
receive  eryaspase  in  combination  with  standard  chemotherapy  (gemcitabine/abraxane  or  irinotecan-based  regimen)  or  chemotherapy  alone  until  disease
progression.  The  primary  endpoint  is  overall  survival.  The  main  secondary  endpoints  include  progression-free  survival,  objective  response  rate,  disease
control  rate,  quality  of  life  and  safety.  Patient  enrollment  for  the  TRYbeCA-1  trial  commenced  in  September  2018  in  Europe  and  after  receipt  of  IND
approval from the FDA, we have opened clinical sites in the United States. We have obtained clinical trial authorizations in the United States and from 11
European  countries,  and  as  of  the  date  of  this  Annual  Report,  where  the  trial  has  been  conducted  in  90  clinical  trial  sites.  We  completed  enrollment  in
December 2020 with 512 randomized patients.

The interim analysis was triggered when two-thirds of the total number of events had occurred (i.e. two-thirds of the number of deaths required to make the
final analysis of the overall survival in the trial) have occurred. Those events have been reached in October 2020. We published the results from the interim
superiority analysis on February 8, 2021. This is the third review by the IDMC of the safety data of the patients enrolled and treated in the trial. The prior
reviews took place at 150, 199 and 320 patients, respectively. No safety issues were identified and the IDMC recommended that we continue the trial as
planned. We remain blinded to the primary and secondary endpoint efficacy data. The trial will continue toward a final analysis, expected in the fourth
quarter of 2021.

Ongoing – rESPECt trial

rESPECt  (STUDY00002008)  is  a  proof-of-concept  investigator  initiated  Phase  1  clinical  trial  evaluating  the  safety  of  eryaspase  in  combination  with
FOLFIRINOX for the treatment of first-line pancreatic cancer patients. The US Food and Drug Administration (FDA) reviewed IND/Investigational New
Drug application and cleared the study to proceed enrolling patients in December 2019. It is planned to enrol approximately 12 to 18 patients. The study is
open for enrollment.

Next Steps in Pancreatic Cancer

We will pursue our clinical development strategy in the treatment of pancreatic cancer as follows:

•

•

the completion of the TRYbeCA1 Phase 3 clinical trial in second-line advanced pancreatic cancer in Europe and the U.S. Final analysis results are
expected in the fourth quarter of 2021.

the  continuation  of  the  rESPECT  Phase  1  clinical  trial  in  first  line  pancreatic  cancer,  led  and  sponsored  by  the  Georgetown  Lombardi
Comprehensive Cancer Center in Washington, DC, USA. Determination of the maximum tolerated dose will be expected by end of year 2021.

Both the FDA and EMA have granted orphan drug designation for eryaspase or GRASPA for the treatment of pancreatic cancer. Orphan drug designation
provides manufacturers with research grants, tax credits and eligibility for marketing exclusivity of up to seven years in the United States and 10 years in
Europe.

We retain worldwide rights to commercialize eryaspase for the pancreatic cancer indication.

Ongoing and Planned Clinical Development in Triple Negative Breast Cancer and Other Solid Tumors

Following the results with eryaspase in the proposed treatment of second-line metastatic pancreatic cancer, we conducted a comprehensive evaluation to
determine other potential solid tumor indications and selected metastatic TNBC as the next indication to evaluate in order to expand the potential use of
eryaspase in solid tumors. TNBC is an aggressive and metabolically active form of breast cancer with high rates of symptomatic metastases. TNBC cells
lack expression of estrogen and progesterone receptors and do not overexpress HER2. Scientific literature estimates that approximately 10% to 20% of the
600,000 breast cancers that are diagnosed each year in the United States and Europe in aggregate are classified as TNBC. As commonly-utilized hormone
therapy and HER2 targeting agents are not treatment options for women with TNBC, there is significant unmet need for novel therapeutic approaches in
this subtype of breast cancer. At the end of 2018, we launched a Phase 2 proof-of-concept clinical trial in this indication in Europe, which we refer to as the
TRYbeCA-2 trial. The trial is now open for enrollment in three European countries and we announced enrollment of the first patient in June 2019. The
TRYbeCA-2  trial,  is  evaluating  eryaspase  in  combination  with  gemcitabine  and  carboplatine  chemotherapy,  compared  to  chemotherapy  alone  in
approximately 64 patients, with previously untreated metastatic TNBC. We expect to report first results from the TRYbeCA-2 trial in the fourth quarter of
2021.

Planned Clinical Development in Other Solid Tumors

Preclinical work is ongoing to identify other relevant solid tumor indications, including a review of the use of the product candidate in combination with
chemotherapy and immunotherapy compounds.

Eryaspase for the Treatment of Acute Lymphoblastic Leukemia (ALL)

We were previously developing eryaspase, or GRASPA, for the treatment of children and adults with ALL in combination with chemotherapy. We started
the development of eryaspase in ALL in 2005 with a Phase 1 clinical trial in patients with relapsed and refractory ALL. The clinical trial was completed in
2009. We also completed a Phase 2 study in elderly patients with ALL in 2010. We have completed five clinical trials in ALL in Europe and in the United
States in which a total of 166 patients with ALL were enrolled, of which 132 patients were treated with eryaspase.

Different hard-to-treat sub-indications of ALL were targeted in these trials, relapsed and refractory patients, adults and elderly patients and patients who
were allergic to other asparaginases. We believe the results of our trials support our hypothesis that encapsulation could prolong asparaginase activity and
reduce its side-effects. We also observed eryaspase to have an improved clinical benefit as compared to native L-asparaginase in our completed clinical
trials, as described below.

In 2014, we completed a phase 2/3 clinical trial in 80 children and adults with relapsed ALL in which we evaluated the safety and efficacy of GRASPA
compared to free-form L-asparaginase derived from the bacteria E. coli, also known as native L-asparaginase. In this European trial, patients without a
history of allergies to native L-asparaginase treatments were randomized to receive standard

chemotherapy plus either GRASPA or native L-asparaginase. Patients with a known allergy to native L-asparaginase treatments were treated with standard
chemotherapy plus GRASPA. The trial achieved both of its primary endpoints:

•

•

Lower Incidence of Allergic Reactions. Among the non-allergic patients, none of the 26 patients treated with GRASPA experienced an allergic
reaction during the induction phase, compared to 13 patients out of 28, or 46%, of those treated with native L-asparaginase in the control group.

Superior Duration of L-Asparaginase Activity. Among the non-allergic patients, the patients treated with GRASPA maintained a mean duration
of  L-asparaginase  activity  above  100  U  per  liter  for  18.9  days,  with  at  most  two  injections  during  the  first  month  of  treatment.  This  result
compared to a mean duration of activity of 8.5 days in the control group, who received up to eight injections of native L-asparaginase.

Eryaspase  or  GRASPA  was  also  observed  to  have  an  improved  clinical  benefit  as  compared  to  native  L-asparaginase  based  on  its  achievement  of  the
secondary efficacy endpoints:

• Higher  Complete  Remission  Rate.  At  the  end  of  the  induction  phase,  the  non-allergic  patients  in  the  GRASPA  treatment  arm,  or  76%,  had
achieved complete remission, or the disappearance of all signs of cancer in response to treatment, as compared to 46.4%, in the control arm.
Among the allergic patients, 60% achieved complete remission after treatment with GRASPA.

•

•

Improved Minimal Residual Disease Rate. Among the non-allergic patients, nine out of 26, or 35%, achieved low levels of residual leukemic
cells classified as minimal residual disease, or MRD, at the end of the induction phase, as compared to seven out of 28, or 25%, of those in the
control group. Among the allergic patients, six out of 26, or 23%, achieved MRD after treatment with GRASPA.

Improved Overall Survival Rates. 12-month overall survival rates among the non-allergic patients treated with GRASPA were 76.9%, compared
to 67.9%, for those in the control group. 12-month overall survival in the allergic group of patients was 50%. Based on three years of follow-up,
a nominal improvement of overall survival was observed (HR = 0.73).

Treatment  with  GRASPA  was  generally  well  tolerated.  Drug-related  adverse  events  generally  consisted  of  allergic  reactions,  clotting  problems,  liver
toxicities and pancreas disorders. None of the 52 patients receiving GRASPA during the Phase 2/3 trial had an adverse event leading to discontinuation of
the trial, as compared to 13 out of the 28 patients, or 46%, in the control arm. A total of three patients out of the 52 patients treated with GRASPA during
the trial experienced serious adverse events determined to be drug-related.

Based on the positive efficacy and safety results from our Phase 2/3 pivotal trial, we submitted a Marketing Authorization Application, or MAA, to the
EMA for GRASPA for the treatment of relapsed or refractory ALL in September 2015. Following discussions with the EMA, we withdrew the MAA in
November  2016.  We  conducted  activities  designed  to  provide  data  regarding  immunogenicity  and  pharmacodynamics  of  eryaspase,  as  well  as
comparability of eryaspase produced with native versus recombinant L-asparaginase, and resubmitted an MAA in October 2017. In June 2018, based on
feedback from the EMA and FDA, it appeared that significant additional investment would be required in order to seek regulatory approval of eryaspase for
the treatment of ALL. In the context of the rapidly changing and increasingly competitive landscape with newly-approved treatment options for ALL, the
regulatory  feedback  and  what  we  observed  to  be  a  limited  market  opportunity  for  eryaspase  in  ALL,  we  elected  to  cease  further  clinical  development
efforts in ALL. Accordingly, we withdrew our MAA in the second half of 2018.

Despite  our  ceasing  clinical  development  efforts  in  this  indication,  an  investigator-sponsored  trial,  initiated  in  2017  by  the  Nordic  Society  of  Pediatric
Haematology and Oncology, or NOPHO, is still ongoing. The Phase 2 trial was expected to enroll approximately 30 patients at 22 sites across seven Nordic
and Baltic countries. The trial protocol was amended in 2019 to increase the number of patients to be recruited up to 50 patients. The main objectives of
this  trial  are  to  evaluate  the  pharmacokinetic  and  pharmacodynamic  activity,  safety  and  immunogenicity  profile  of  eryaspase  in  combination  with
NOPHO’s multi-agent chemotherapy protocol for ALL, administered as second-intention treatment for children or adult ALL patients, one year to 45 years
of  age,  who  experience  hypersensitivity  reactions  to  PEG-asparaginase  or  silent  inactivation.  The  enrollment  has  been  completed  in  August  2020  (55
patients enrolled). Preliminary results have been presented in March 2020 during the annual NOPHO meeting and final positive results have been presented
at the American Society of Hematology (ASH) meeting on 6 December 2020.

4.B.6. Other ERYCAPS Development Programs

In addition to eryaspase, our product candidate based on L-asparaginase treatment, we believe that our ERYCAPS platform has broad potential application
and can be used to encapsulate within red blood cells a wide range of therapeutic agents for which long-circulating therapeutic activity or rapid and specific
targeting is desired.

Cancer Metabolism

In  addition  to  our  product  pipeline  centered  on  L-asparaginase  treatment,  we  are  using  our  proprietary  patent-protected  ERYCAPS  platform  to  identify
additional  enzymes  that  could  induce  tumor  starvation.  The  TEDAC  program  intended  to  identify  additional  tumor  starvation  agents  and  to  identify
companion  diagnostic  tests.  In  preclinical  studies  performed  under  the  TEDAC  program,  we  have  identified  two  other  amino  acids,  methionine  and
arginine, and their respective enzymes, methionine-γ-lyase, or MGL, and arginine deiminase, or ADI, that we believe may be promising treatments when
encapsulated inside red blood cells.

In 2017, we presented preclinical data with our product candidate erymethionase, which consists of MGL in red blood cells, at the American Society of
Clinical Oncology Gastrointestinal Cancers Symposium and the American Association for Cancer Research conferences. We intend to continue to work on
the development of erymethionase as well as potential other therapeutic strategies based on methionine depletion, depending on financial resources and
business strategy. We are also evaluating eryminase, which consists of ADI encapsulated inside red blood cells, as a potential product candidate for further
clinical  development.  In  2017,  we  entered  into  a  research  collaboration  with  the  Fox  Chase  Cancer  Center  to  advance  the  preclinical  development  of
erymethionase for the treatment of homocystinuria and with Queen’s University of Canada to advance the preclinical development of eryminase for the
treatment of arginase-1-deficiency. In September 2017, we presented early preclinical data on both programs at the 13th International Congress of Inborn
Errors of Metabolism (ICIEM).

Enzyme Replacement

Outside of the oncology field, we also are studying the use of our ERYCAPS platform to promote long-acting enzyme activity

Enzyme  replacement  is  a  preclinical  development  program  designed  to  use  our  proprietary  ERYCAPS  platform  for  enzyme-based  therapies  beyond
oncology. We encapsulate therapeutic enzymes inside donor-derived red blood cells using our proprietary ERYCAPS platform in order to create product
candidates to target certain metabolic diseases. We believe that the encapsulation of the therapeutic enzymes in the red blood cells may be able to reduce
the potential for allergic reactions and to allow the therapeutic substance to remain in the body longer as compared to non-encapsulated enzymes.

Immune modulation

We  demonstrated  the  proof  of  concept  to  encapsulate  tumor  antigens  or  adjuvants  within  red  blood  cells  as  an  innovative  approach  to  cancer
immunotherapy.

Based on our preclinical research on immune modulation, we believe that encapsulated tumor antigens can be targeted to the spleen or to the liver, in order
to  induce  an  immune  response,  resulting  in  sustained  activation  of  the  body’s  immune  system  to  fight  cancers  or  to  tolerance  induction.  In  preclinical
studies with three different antigens loaded in red blood cells, we have observed promising proof-of-concept data in three different tumor models. In these
studies, we observed significantly increased antigen-specific CD8+ and CD4+ T-cell responses and delays in tumor growth when the encapsulated antigens
were injected in mice with tumors, as compared to the injection of the unloaded antigens alone. As part of our value creation strategy, in 2019, we have
granted  to  SQZ  Biotechnologies  an  exclusive  worldwide  licence  to  develop  antigen-specific  immune  modulating  therapies  employing  RBC-based
approaches.  Combining  SQZ’s  proprietary  and  versatile  cell  engineering  platform,  Cell  Squeeze®,  with  our  intellectual  property  related  to  RBC-based
therapeutics, rapid development of a broad pipeline of novel immunomodulatory products addressing multiple indications is envisaged.

4.B.7. Manufacturing and Supply

We currently operate two manufacturing facilities to manufacture our product candidates.

Our  primary  production  facility  for  Europe  is  based  in  Lyon,  France.  This  production  facility  complies  with  European  cGMP.  We  have  extended  the
capacity  of  our  Lyon  facility  in  July  2019  to  ensure  supply  in  our  ongoing  and  future  clinical  trials,  as  well  as  anticipated  early  commercial  needs,  if
eryaspase is approved for marketing. We believe our current leased space is sufficient to meet our current needs in Europe.

For our clinical trials in the United States, we started manufacturing GMP-compliant batches out of our manufacturing facility in Princeton, New Jersey in
the fourth quarter of 2019. This manufacturing facility was designed with the ability to scale production to supply eryaspase to meet our anticipated clinical
trial  needs,  including  our  supply  requirements  for  U.S.  patients  in  the  TRYbeCA-1  trial,  and  for  our  anticipated  initial  commercial  needs  in  the  United
States  if  eryaspase  is  approved.  In  connection  with  the  transition  to  our  Princeton  facility,  we  closed  our  small  production  facility  in  Philadelphia,
Pennsylvania in January 2020.

56

We believe our production facilities will be sufficient to supply eryaspase for our ongoing Phase 2 and Phase 3 clinical trials and for our anticipated initial
commercial needs of eryaspase in Europe and the United States, in the event we receive appropriate marketing authorizations.

In Europe, we purchase packed red blood cells from the French Blood Agency (Ėtablissement Français du Sang) and the German Red Cross Blood Donor
Service. In the United States, we have supply agreements with the American Red Cross and the New York Blood Center.

In  the  case  of  eryaspase,  we  have  the  manufacturing  and  logistics  in  place  to  deliver  eryaspase  to  patients  in  approximately  24  hours  from  the  start  of
production to delivery of the product candidate to the hospital. Once a prescription is written, we receive an order for eryaspase from the hospital. We then
source a pack of red blood cells, compatible with the patient’s blood type, from one of our partner blood banks. After identification of the key parameters of
the red blood cell unit, we encapsulate the L-asparaginase into the red blood cells using an automated process that takes three to four hours. Before release,
the product must meet a number of quality control specifications, including the number of red blood cells in the packed product, the level of L-asparaginase
activity, the amount of extracellular L-asparaginase in the blood and the integrity of the container holding the red blood cells. We then deliver the product to
the hospital using a third-party commercial overnight delivery service. We ship the product at a refrigerated temperature of between two and eight degrees
Celsius, or approximately 36 to 46 degrees Fahrenheit. At this temperature, the product has been shown to remain stable for five days. Once removed and
ready for administration, the product remains stable for six hours at room temperature.

In May 2011, we entered into a worldwide supply agreement, as subsequently amended on April 4, 2014 and July 25, 2016, which we refer to as the 2011
Medac Agreement, under which Medac has agreed to supply us with their new, recombinant free-form L-asparaginase, called Spectrila, for which Medac
obtained  a  European  marketing  approval  in  2016.  The  2011  Medac  Agreement  includes  an  exclusivity  period,  starting  from  the  date  of  commercial
authorization of eryaspase/GRASPA for a duration of five years. The term of the 2011 Medac Agreement is until December 2028, provided, that Medac is
entitled, upon expiration of the five-year exclusivity period, to terminate the agreement, upon five years’ notice, in the event its supplier of the recombinant
formulation of L-asparaginase discontinues supplying to Medac. The July 2016 amendment nullified the clauses providing that we could have been forced
to  refrain  from  any  form  of  promotion  of  eryaspase/GRASPA  if  such  product  was  produced  from  a  new  formulation  of  asparaginase  registered  and
marketed prior to eryaspase/GRASPA as a first-line treatment. We are exclusively using this new recombinant formulation of L-asparaginase in eryaspase
for new indications, including our ongoing clinical trials for pancreatic cancer, and no longer intend to use the native form of asparaginase for eryaspase.

4.B.8. Commercialization

As we move our product candidates through development toward regulatory approval in the United States and Europe, we will evaluate several options for
each  product  candidate’s  commercialization  strategy.  These  options  include  building  our  own  internal  sales  force  and  distribution  units  or  entering  into
collaborations with third parties for the distribution and marketing of the approved products. We generally expect to retain commercial rights to our product
candidates, but we will also evaluate collaborative arrangements with third parties for the commercialization and distribution of our product candidates for
specified indications and in specified territories where appropriate. We previously entered into collaborations with Teva for the distribution of GRASPA as
a treatment of ALL in Israel, and with Orphan Europe, part of the Recordati Group, for the distribution of GRASPA as a treatment of ALL and AML in
Europe. As a consequence of our withdrawal of the MAA for ALL and our decision to focus on solid tumors, our agreement with Orphan Europe was
terminated in the first half of 2019 without financial consequences to us. The agreement with Teva is still in effect, but, at this time, there are no current
ongoing obligations under the agreement. With the exception of Israel, we have retained worldwide rights to commercialize eryaspase for the treatment of
all indications, including ALL, pancreatic cancer and TNBC. We have retained worldwide commercial rights for all of our other product candidates.

57

4.B.9.

Intellectual Property

Our  patent  portfolio  includes  pending  patent  applications  and  issued  patents  in  the  United  States  and  foreign  countries.  These  patents  and  applications
include 15 patent families we own in our own name with more than 290 granted patents, summarized below:

TECHNOLOGY

RBC Encapsulation Platform

Eryaspase

Other Onco-metabolism

Rare Metabolic Disorders

Immunology

Small Molecule

NUMBER
OF PATENT
FAMILIES

EXPIRATION
YEARS FOR
EACH PATENT
FAMILY *

2

3

4

3

2

1

2024 - 2030
2033 - 2034

2027 - 2029
2032 - 2033
2028 - 2029

2026
2034 - 2035
2035 - 2036
2038

2028
2033 - 2034
2037 - 2038

2030
2027 - 2028

2028 - 2029

COUNTRIES IN WHICH PATENTS ARE ISSUED (OR
ALLOWED/ACCEPTED)

Japan, Europe, Australia, China, United States, South Korea, India, Canada,
Russia, Hong Kong, Mexico, GCC, Israel

Europe, United States, Australia, Singapore, Israel, Japan,
South  Korea,  China,  India,  United  Arab  Emirates,  GCC,  Russia  Canada,
Hong Kong

Europe, Japan, China, Canada, South Korea, Australia, United States, Hong
Kong, Israel, Russia, GCC, Jordan

Europe, Israel

Australia,  Singapore,  France,  China,  Israel,  South  Korea,  Europe,  United
States, Japan, United Arab Emirates, Canada, Hong Kong

Europe,  Israel,  China,  Australia,  Singapore,  South  Korea,  Canada,  Hong
Kong

*

This expiration year does not take into account supplementary patent protection that could be obtained for some of our patents in the United States,
Europe, Japan and other countries. Expiration dates for U.S. patents not yet granted may be subject to patent term adjustment (PTA) and/or patent
term extension (PTE).

Of our 15 patent families, 13 patent families currently include at least one issued patent.

The term of a U.S. patent may be eligible for patent term restoration under the Hatch-Waxman Act to account for at least some of the time the drug or
method of manufacture is under development and regulatory review after the patent is granted. With regard to a drug or method of manufacture for which
FDA approval is the first permitted marketing of the active ingredient, the Hatch-Waxman Act allows for extension of the term of one U.S. patent. The
extended  patent  term  cannot  exceed  the  shorter  of  five  years  beyond  the  non-extended  expiration  of  the  patent  or  14  years  from  the  date  of  the  FDA
approval of the drug or method of manufacture. Some foreign jurisdictions have analogous patent term extension provisions that allow for extension of the
term of a patent that covers a device approved by the applicable foreign regulatory agency. In the future, if and when our product candidates receive FDA
approval, we expect to apply for patent term extensions on the patents that we believe will provide the best exclusivity position if extended.

In  addition  to  patent  protection,  we  have  trademark  protection  in  many  countries  for  our  name,  logo  and  several  product  candidates.  None  of  our
trademarks are subject to a third-party license.

Patent License from Radboud University

In 2018, we entered into an exclusive license agreement with Radboud University (the Netherlands), or Radboud, under which Radboud has granted us an
exclusive  license  to  a  patent  family,  including  a  PCT  application  filed  December  6,  2018,  directed  to  synergistic  combinations  of  amino  acid  depletion
agents, or AADA, and amino acid depletion agent sensitizers. We intend to use the patent rights licensed from Radboud to develop product candidates,
either alone or in collaboration with external partners, including product candidates that contain eryaspase as the AADA. Under the terms of the exclusive
license agreement, we may also sublicense the patent rights to external partners to generate sublicense revenue.

4.B.10. Competition

The biotechnology and pharmaceutical industries are highly competitive and subject to significant and rapid technological change as researchers learn more
about diseases and develop new technologies and treatments. Significant competitive factors in our industry include product efficacy and safety; quality
and breadth of an organization’s technology; skill of an organization’s employees and its ability to recruit and retain key employees; timing and scope of
regulatory  approvals;  government  reimbursement  rates  for,  and  the  average  selling  price  of,  products;  the  availability  of  raw  materials  and  qualified
manufacturing capacity; manufacturing costs;

58

intellectual property and patent rights and their protection; and sales and marketing capabilities. We cannot ensure you that any of our products that we
successfully develop will be clinically superior or scientifically preferable to products developed or introduced by our competitors.

Our competitors may also succeed in obtaining EMA, FDA or other regulatory approvals for their product candidates more rapidly than we are able to do,
which could place us at a significant competitive disadvantage or deny us marketing exclusivity rights.

Market acceptance of our product candidates will depend on a number of factors, including:

•

•

•

•

potential advantages over existing or alternative therapies or tests;

the actual or perceived safety of similar classes of products;

the effectiveness of our sales, marketing, and distribution capabilities; and

the scope of any approval provided by the FDA or foreign regulatory authorities.

Although we believe our product candidates possess attractive attributes, we cannot ensure that our product candidates will achieve regulatory or market
acceptance, or that we will be able to compete effectively in the biopharmaceutical drug markets. If our product candidates fail to gain regulatory approvals
and acceptance in their intended markets, we may not generate meaningful revenues or achieve profitability.

In  general,  eryaspase  will  be  positioned  as  an  add-on  to  standard  chemotherapeutic  regimens.  In  pancreatic  adenocarcinoma,  gemcitabine-based  (e.g.
gemcitabine  and  nab  paclitaxel,  Celgene’s  Abraxane)  and  fluoropyrimidine-based  (e.g.  FOLFIRINOX,  comprised  of  fluorouracil,  leucovorin,  irinotecan
and oxaliplatin) chemotherapy regimens are standards of care for the first-line treatment of patients with metastatic disease. Our ongoing TRYbeCA-1 trial
in  second-line  metastatic  pancreatic  adenocarcinoma  is  evaluating  the  addition  of  eryaspase  to  both  (i)  gemcitabine  and  Celgene’s  Abraxane  in  patients
whose  disease  has  progressed  on  a  prior  fluoropyrimidine-based  chemotherapy  and  (ii)  an  irinotecan-based  regimen,  including  the  approved  liposomal
formulation  of  irinotecan,  Ipsen/Servier’s  Onivyde,  in  combination  with  flurouracil  and  leucovorin  in  patients  whose  disease  has  progressed  on  a  prior
gemcitabine-based regimen. If approved, we anticipate that eryaspase will be used in combination with gemcitabine-based and irinotecan-based regimens.

Depending on the results of the TRYbeCA-1 trial, we believe eryaspase has the potential to be seen as competitive to or as a combination partner for many
of these agents. Eryaspase could potentially face competition from several investigational agents currently being evaluated in metastatic patients who have
progressed  on  previous  first-line  chemotherapy.  These  include,  but  are  not  limited  to,  Eleison  Pharmaceuticals’  glufosfamide,  SynCore  Biotechnology’s
EndoTAG-1,Tyme Technologies’ SM-88, BioLineRx’s BL-8040, and NantKwest’s PD-L1.t-haNK combined with ImmunityBio’s N-803. Eryaspase could
also potentially compete with agents being evaluated in combination with standard chemotherapy regimens for the first-line treatment of metastatic disease.
These include, but are not limited to, Rafael Pharmaceuticals’ CPI-613, Apexigen’s APX005M and Astellas’ zolbetuximab.

In  TNBC,  we  expect  eryaspase  to  be  used  in  combination  with  various  chemotherapy  agents  that  are  used  to  treat  metastatic  triple  negative  disease,
including taxanes (paclitaxel, docetaxel and Celgene’s Abraxane), capecitabine, and Eisai’s Halaven. Eryaspase could potentially face competition from
small molecule poly-ADP ribose polymerase (PARP) inhibitors, including, but not limited to, AstraZeneca/Merck’s Lynparza and Pfizer’s Talzenna, which
received FDA approval for the treatment of germline BRCA mutant metastatic breast cancer in 2018; PD-1/PD-L1 antibodies, including, but not limited to,
Roche’s Tecentriq and Merck’s Keytruda which were approved by the FDA for metastatic TNBC in 2019 and 2020 respectively; Trop-2 directed antibody-
drug conjugates (ADCs), including, but not limited to, Gilead Science’s Trodelvy which was approved by the FDA for previously treated metastatic TNBC
in 2020; and other molecules in development, including, but not limited to, Roche’s ipatasertib, Astrazeneca’ capivasertib, Seattle Genetics’ ladiratuzumab
vedotin, and G1 Therapeutics’ trilaciclib.

Though there are several L-asparaginase based products approved for use in ALL, we do not believe that these products are being evaluated in the solid
tumor indications we are pursuing with eryaspase at this time.

Many of the companies against which we are competing, or against which we may compete in the future, have significantly greater financial resources and
expertise in research and development, manufacturing, preclinical testing, conducting clinical trials, obtaining regulatory approvals and marketing approved
drugs  than  we  do.  Mergers  and  acquisitions  in  the  pharmaceutical  and  biotechnology  industries  may  result  in  even  more  resources  being  concentrated
among  a  smaller  number  of  our  competitors.  Smaller  or  early-stage  companies  may  also  prove  to  be  significant  competitors,  particularly  through
collaborative arrangements with large and established companies. These competitors also compete with us in recruiting and retaining qualified scientific
and management personnel and establishing clinical trial sites and patient registration for clinical trials, as well as in acquiring technologies complementary
to, or necessary for, our programs.

59

4.B.11. Government Regulation

Government  authorities  in  the  United  States  at  the  federal,  state  and  local  level  and  in  other  countries  extensively  regulate,  among  other  things,  the
research, development, testing, manufacture, quality control, approval, labeling, packaging, storage, record-keeping, promotion, advertising, distribution,
post-approval monitoring and reporting, marketing and export and import of drug and biological products, or biologics, such as our product candidates.
Generally, before a new drug or biologic can be marketed, considerable data demonstrating its quality, safety and efficacy must be obtained, organized into
a format specific to each regulatory authority, submitted for review and approved by the regulatory authority.

U.S. Biological Product Development

In the United States, the FDA regulates biologics under the Federal Food, Drug, and Cosmetic Act, or FDCA, and the Public Health Service Act, or PHSA,
and their implementing regulations. Biologics are also subject to other federal, state and local statutes and regulations. The process of obtaining regulatory
approvals and the subsequent compliance with appropriate federal, state, local and foreign statutes and regulations require the expenditure of substantial
time  and  financial  resources.  Failure  to  comply  with  the  applicable  U.S.  requirements  at  any  time  during  the  product  development  process,  approval
process or after approval, may subject an applicant to administrative or judicial sanctions. These sanctions could include, among other actions, the FDA’s
refusal  to  approve  pending  applications,  withdrawal  of  an  approval,  a  clinical  hold,  untitled  or  warning  letters,  product  recalls  or  withdrawals  from  the
market,  product  seizures,  total  or  partial  suspension  of  production  or  distribution  injunctions,  fines,  refusals  of  government  contracts,  restitution,
disgorgement, reputational harm, and/or civil or criminal penalties. Any agency or judicial enforcement action could have a material adverse effect on us.

Our product candidates must be approved by the FDA through the Biologics License Application, or BLA, process before they may be legally marketed in
the United States. The process required by the FDA before a biologic may be marketed in the United States generally involves the following:

•

•

•

•

•

•

•

completion of extensive nonclinical, sometimes referred to as preclinical laboratory tests, preclinical animal studies and formulation studies in
accordance with applicable regulations, including the FDA’s Good Laboratory Practice, or GLP, regulations;

submission to the FDA of an IND, which must become effective before human clinical trials may begin;

performance of adequate and well-controlled human clinical trials in accordance with applicable IND and other clinical trial-related regulations,
sometimes  referred  to  as  Good  Clinical  Practices,  or  GCPs,  to  establish  the  safety  and  efficacy  of  the  proposed  product  candidate  for  its
proposed indication;

submission to the FDA of a BLA;

satisfactory completion of an FDA pre-approval inspection of the manufacturing facility or facilities where the product is produced to assess
compliance with the FDA’s cGMP requirements to assure that the facilities, methods and controls are adequate to preserve the product’s identity,
strength, quality, purity and potency;

potential FDA audit of the preclinical and clinical trial sites that generated the data in support of the BLA; and

FDA review and approval of the BLA prior to any commercial marketing or sale of the product in the United States.

The data required to support a BLA is generated in two distinct development stages: preclinical and clinical. The preclinical development stage generally
involves laboratory evaluations of drug chemistry, formulation and stability, as well as studies to evaluate toxicity in animals, which support subsequent
clinical testing. The conduct of the preclinical studies must comply with federal regulations, including GLPs. The sponsor must submit the results of the
preclinical studies, together with manufacturing information, analytical data, any available clinical data or literature and a proposed clinical protocol, to the
FDA as part of the IND. An IND is a request for authorization from the FDA to administer an investigational drug product to humans. The central focus of
an  IND  submission  is  on  the  general  investigational  plan  and  the  protocol(s)  for  human  trials.  The  IND  automatically  becomes  effective  30  days  after
receipt by the FDA, unless the FDA raises concerns or questions regarding the proposed clinical trials and places the IND on clinical hold within that 30-
day time period. In such a case, the IND sponsor and the FDA must resolve any outstanding concerns before the clinical trial can begin. The FDA may also
impose clinical holds on a product candidate at any time before or during clinical trials due to safety concerns or non-compliance. Accordingly, we cannot
be sure that submission of an IND will result in the FDA allowing clinical trials to begin, or that, once begun, issues will not arise that could cause the trial
to be suspended or terminated.

The clinical stage of development involves the administration of the product candidate to healthy volunteers or patients under the supervision of qualified
investigators, generally physicians not employed by or under the trial sponsor’s control, in accordance with GCPs, which include the requirement that all
research subjects provide their informed consent for their participation in any clinical trial. Clinical trials are conducted under protocols detailing, among
other things, the objectives of the clinical trial, dosing procedures, subject selection and exclusion criteria, and the parameters to be used to monitor subject
safety and assess efficacy. Each protocol, and

60

any subsequent amendments to the protocol, must be submitted to the FDA as part of the IND. Further, each clinical trial must be reviewed and approved
by an independent institutional review board, or IRB, at or servicing each institution at which the clinical trial will be conducted. An IRB is charged with
protecting  the  welfare  and  rights  of  trial  participants  and  considers  such  items  as  whether  the  risks  to  individuals  participating  in  the  clinical  trials  are
minimized and are reasonable in relation to anticipated benefits. The IRB also approves the informed consent form that must be provided to each clinical
trial subject or his or her legal representative and must monitor the clinical trial until completed.

There are also requirements governing the reporting of ongoing clinical trials and completed clinical trial results to public registries. Sponsors of clinical
trials of FDA-regulated products, including biologics, are required to register and disclose certain clinical trial information, which is publicly available at
www.clinicaltrials.gov. Information related to the product, patient population, phase of investigation, study sites and investigators, and other aspects of the
clinical  trial  is  then  made  public  as  part  of  the  registration.  Sponsors  are  also  obligated  to  discuss  the  results  of  their  clinical  trials  after  completion.
Disclosure of the results of these trials can be delayed until the new product or new indication being studied has been approved.

Clinical trials are generally conducted in three sequential phases that may overlap, known as Phase 1, Phase 2 and Phase 3 clinical trials. Phase 1 clinical
trials generally involve a small number of healthy volunteers who are initially exposed to a single dose and then multiple doses of the product candidate.
The primary purpose of these clinical trials is to assess the metabolism, pharmacologic action, side effect tolerability and safety of the product candidate
and, if possible, to gain early evidence on effectiveness. Phase 2 clinical trials typically involve studies in disease-affected patients to determine the dose
required to produce the desired benefits. At the same time, safety and further pharmacokinetic and pharmacodynamic information is collected, as well as
identification of possible adverse effects and safety risks and preliminary evaluation of efficacy. Phase 3 clinical trials generally involve large numbers of
patients  at  multiple  sites,  in  multiple  countries,  from  several  hundred  to  several  thousand  subjects,  and  are  designed  to  provide  the  data  necessary  to
demonstrate the efficacy of the product for its intended use and its safety in use, and to establish the overall benefit/risk relationship of the product and
provide  an  adequate  basis  for  product  approval.  Phase  3  clinical  trials  may  include  comparisons  with  placebo  and/or  other  comparator  treatments.  The
duration of treatment is often extended to mimic the actual use of a product during marketing. Generally, two adequate and well-controlled Phase 3 clinical
trials are required by the FDA for approval of a BLA.

Post-approval  trials,  sometimes  referred  to  as  Phase  4  clinical  trials,  may  be  conducted  after  initial  marketing  approval.  These  trials  are  used  to  gain
additional experience from the treatment of patients in the intended therapeutic indication. In some instances, FDA may condition approval of a BLA on
the sponsor’s agreement to conduct additional clinical trials to further assess the biologic’s safety and effectiveness after BLA approval.

Progress reports detailing the results of the clinical trials must be submitted at least annually to the FDA and written IND safety reports must be submitted
to  the  FDA  and  the  investigators  for  serious  and  unexpected  suspected  adverse  events  or  any  finding  from  tests  in  laboratory  animals  that  suggests  a
significant risk for human subjects. Phase 1, Phase 2 and Phase 3 clinical trials may not be completed successfully within any specified period, if at all. The
FDA, the IRB, or the sponsor may suspend or terminate a clinical trial at any time on various grounds, including a finding that the research subjects or
patients  are  being  exposed  to  an  unacceptable  health  risk.  Similarly,  an  IRB  can  suspend  or  terminate  approval  of  a  clinical  trial  at  its  institution  if  the
clinical trial is not being conducted in accordance with the IRB’s requirements or if the drug has been associated with unexpected serious harm to patients.
Additionally, some clinical trials are overseen by an independent group of qualified experts organized by the clinical trial sponsor, known as a data safety
monitoring board or committee. This group provides authorization for whether or not a trial may move forward at designated intervals based on access to
certain data from the trial. We may also suspend or terminate a clinical trial based on evolving business objectives and/or competitive climate. Concurrent
with clinical trials, companies usually complete additional animal studies and must also develop additional information about the chemistry and physical
characteristics  of  the  product  candidate  as  well  as  finalize  a  process  for  manufacturing  the  product  in  commercial  quantities  in  accordance  with  cGMP
requirements. The manufacturing process must be capable of consistently producing quality batches of the product candidate and, among other things, must
develop methods for testing the identity, strength, quality and purity of the final product. Additionally, appropriate packaging must be selected and tested
and stability studies must be conducted to demonstrate that the product candidate does not undergo unacceptable deterioration over its shelf life.

BLA and FDA Review Process

Following trial completion, trial data is analyzed to assess safety and efficacy. The results of preclinical studies and clinical trials are then submitted to the
FDA as part of a BLA, along with proposed labeling for the product and information about the manufacturing process and facilities that will be used to
ensure  product  quality,  results  of  analytical  testing  conducted  on  the  chemistry  of  the  product  candidate,  and  other  relevant  information.  The  BLA  is  a
request for approval to market the biologic for one or more specified indications and must contain proof of safety, purity, potency and efficacy, which is
demonstrated by extensive preclinical and clinical testing. The application includes both negative or ambiguous results of preclinical and clinical trials, as
well as positive findings. Data may come from company-sponsored clinical trials intended to test the safety and efficacy of a use of a product, or from a
number of alternative sources, including studies initiated by investigators. To support marketing approval, the data submitted must be sufficient

61

in quality and quantity to establish the safety and efficacy of the investigational product to the satisfaction of the FDA. FDA approval of a BLA must be
obtained before a biologic may be offered for sale in the United States.

Under the Prescription Drug User Fee Act, or PDUFA, as amended, each BLA must be accompanied by a significant user fee, which is adjusted on an
annual basis. PDUFA also imposes an annual product fee for human drugs and an annual establishment fee on facilities used to manufacture prescription
drugs. Fee waivers or reductions are available in certain circumstances, including a waiver of the application fee for the first application filed by a small
business.

Once a BLA has been accepted for filing, which occurs, if at all, 60 days after the BLA’s submission, the FDA’s goal is to review BLAs within 10 months
of the filing date for standard review or six months of the filing date for priority review, if the application is for a product intended for a serious or life-
threatening disease or condition and the product, if approved, would provide a significant improvement in safety or effectiveness. The review process is
often significantly extended by FDA requests for additional information or clarification.

After the BLA submission is accepted for filing, the FDA reviews the BLA to determine, among other things, whether the proposed product candidate is
safe  and  effective  for  its  intended  use,  and  whether  the  product  candidate  is  being  manufactured  in  accordance  with  cGMP  to  assure  and  preserve  the
product  candidate’s  identity,  strength,  quality,  purity  and  potency.  The  FDA  may  refer  applications  for  novel  drug  product  candidates  or  drug  product
candidates which present difficult questions of safety or efficacy to an advisory committee, typically a panel that includes clinicians and other experts, for
review,  evaluation  and  a  recommendation  as  to  whether  the  application  should  be  approved  and  under  what  conditions.  The  FDA  is  not  bound  by  the
recommendations of an advisory committee, but it considers such recommendations carefully when making decisions. The FDA will likely re-analyze the
clinical trial data, which could result in extensive discussions between the FDA and us during the review process.

The review and evaluation of a BLA by the FDA is extensive and time consuming and may take longer than originally planned to complete, and we may
not receive a timely approval, if at all.

Before approving a BLA, the FDA will conduct a pre-approval inspection of the manufacturing facilities for the new product to determine whether they
comply  with  cGMP.  The  FDA  will  not  approve  the  product  unless  it  determines  that  the  manufacturing  processes  and  facilities  are  in  compliance  with
cGMP requirements and adequate to assure consistent production of the product within required specifications. In addition, before approving a BLA, the
FDA may also audit data from clinical trials to ensure compliance with GCP requirements. After the FDA evaluates the application, manufacturing process
and manufacturing facilities, it may issue an approval letter or a Complete Response Letter. An approval letter authorizes commercial marketing of the
product  with  specific  prescribing  information  for  specific  indications.  A  Complete  Response  Letter  indicates  that  the  review  cycle  of  the  application  is
complete and the application is not ready for approval. A Complete Response Letter usually describes all of the specific deficiencies in the BLA identified
by  the  FDA.  The  Complete  Response  Letter  may  require  additional  clinical  data  and/or  an  additional  pivotal  Phase  3  clinical  trial(s),  and/or  other
significant and time-consuming requirements related to clinical trials, preclinical studies or manufacturing. If a Complete Response Letter is issued, the
applicant  may  either  resubmit  the  BLA,  addressing  all  of  the  deficiencies  identified  in  the  letter,  or  withdraw  the  application.  Even  if  such  data  and
information is submitted, the FDA may ultimately decide that the BLA does not satisfy the criteria for approval. Data obtained from clinical trials are not
always conclusive and the FDA may interpret data differently than we interpret the same data.

There is no assurance that the FDA will ultimately approve a product for marketing in the United States, and we may encounter significant difficulties or
costs during the review process. If a product receives marketing approval, the approval may be significantly limited to specific populations, severities of
allergies, and dosages or the indications for use may otherwise be limited, which could restrict the commercial value of the product. Further, the FDA may
require  that  certain  contraindications,  warnings  or  precautions  be  included  in  the  product  labeling  or  may  condition  the  approval  of  the  BLA  on  other
changes to the proposed labeling, development of adequate controls and specifications, or a commitment to conduct post-market testing or clinical trials
and surveillance to monitor the effects of approved products. For example, the FDA may require Phase 4 testing, which involves clinical trials designed to
further assess the product’s safety and effectiveness and may require testing and surveillance programs to monitor the safety of approved products that have
been commercialized. The FDA may also place other conditions on approvals including the requirement for a Risk Evaluation and Mitigation Strategy, or
REMS, to assure the safe use of the product. If the FDA concludes a REMS is needed, the sponsor of the BLA must submit a proposed REMS. The FDA
will not approve the NDA without an approved REMS, if required. A REMS could include medication guides, physician communication plans, or elements
to  assure  safe  use,  such  as  restricted  distribution  methods,  patient  registries  and  other  risk  minimization  tools.  Any  of  these  limitations  on  approval  or
marketing  could  restrict  the  commercial  promotion,  distribution,  prescription  or  dispensing  of  products.  Product  approvals  may  be  withdrawn  for  non-
compliance with regulatory standards or if problems occur following initial marketing.

62

Other U.S. Regulatory Matters

Manufacturing,  sales,  promotion  and  other  activities  following  product  approval  are  also  subject  to  regulation  by  numerous  regulatory  authorities  in
addition to the FDA, including, in the United States, the Centers for Medicare & Medicaid Services, or CMS, other divisions of the Department of Health
and  Human  Services,  or  HHS,  the  Drug  Enforcement  Administration,  the  Consumer  Product  Safety  Commission,  the  Federal  Trade  Commission,  the
Occupational  Safety  &  Health  Administration,  the  Environmental  Protection  Agency  and  state  and  local  governments.  In  the  United  States,  sales,
marketing and scientific or educational programs must comply with state and federal fraud and abuse laws, data privacy and security laws, transparency
laws,  and  pricing  and  reimbursement  requirements  in  connection  with  governmental  payor  programs,  among  others.  The  handling  of  any  controlled
substances must comply with the U.S. Controlled Substances Act and Controlled Substances Import and Export Act. Products must meet applicable child-
resistant packaging requirements under the U.S. Poison Prevention Packaging Act. Manufacturing, sales, promotion and other activities are also potentially
subject  to  federal  and  state  consumer  protection  and  unfair  competition  laws.  The  distribution  of  pharmaceutical  products  is  subject  to  additional
requirements and regulations, including extensive record-keeping, licensing, storage and security requirements intended to prevent the unauthorized sale of
pharmaceutical products.

The failure to comply with regulatory requirements subjects’ entities to possible legal or regulatory action. Depending on the circumstances, failure to meet
applicable  regulatory  requirements  can  result  in  criminal  prosecution,  fines  or  other  penalties,  injunctions,  recall  or  seizure  of  products,  total  or  partial
suspension  of  production,  denial  or  withdrawal  of  product  approvals,  or  refusal  to  allow  an  entity  to  enter  into  supply  contracts,  including  government
contracts. In addition, even if an entity complies with FDA and other regulatory requirements, new information regarding the safety or efficacy of a product
could lead the FDA to modify or withdraw product approval. Prohibitions or restrictions on sales or withdrawal of future products marketed by us could
materially affect our business in an adverse way.

Changes in regulations, statutes or the interpretation of existing regulations could impact our business in the future by requiring, for example: (i) changes to
our manufacturing arrangements, and/or our commercial operations; (ii) additions or modifications to product labeling; (iii) the recall or discontinuation of
our products; or (iv) additional record-keeping and/or documentation requirements. If any such changes were to be imposed, they could adversely affect the
operation of our business.

U.S. Patent Term Restoration and Marketing Exclusivity

Depending upon the timing, duration and specifics of the FDA approval of our product candidates, some of our U.S. patents may be eligible for limited
patent  term  extension  under  the  Drug  Price  Competition  and  Patent  Term  Restoration  Act  of  1984,  commonly  referred  to  as  the  Hatch-Waxman
Amendments. The Hatch-Waxman Amendments permit a patent restoration term of up to five years as compensation for patent term lost during product
development and the FDA regulatory review process. However, patent term restoration cannot extend the remaining term of a patent beyond a total of 14
years  from  the  product’s  approval  date.  The  patent  term  restoration  period  is  generally  one-half  the  time  between  the  effective  date  of  an  IND  and  the
submission  date  of  a  BLA  plus  the  time  between  the  submission  date  of  a  BLA  and  the  approval  of  that  application.  Only  one  patent  applicable  to  an
approved drug is eligible for the extension and the application for the extension must be submitted prior to the expiration of the patent. The U.S. Patent and
Trademark Office, in consultation with the FDA, reviews and approves the application for any patent term extension or restoration. In the future, we may
apply for restoration of patent term for our currently owned or licensed patents to add patent life beyond their current expiration dates, depending on the
expected length of the clinical trials and other factors involved in the filing of the relevant BLA.

An abbreviated approval pathway for biological products shown to be similar to, or interchangeable with, an FDA-licensed reference biological product
was created by the Biologics Price Competition and Innovation Act of 2009. Biosimilarity, which requires that the biological product is highly similar to
the reference product notwithstanding minor differences in clinically inactive components and that there be no clinically meaningful differences between
the product and the reference product in terms of safety, purity, and potency, can be shown through analytical studies, animal studies, and a clinical trial or
trials.  Interchangeability  requires  that  a  biological  product  is  biosimilar  to  the  reference  product  and  the  product  can  be  expected  to  produce  the  same
clinical results as the reference product and, for products administered multiple times, the product and the reference product may be switched after one has
been previously administered without increasing safety risks or risks of diminished efficacy relative to exclusive use of the reference biological product.
However, complexities associated with the larger, and often more complex, structure of biological products, as well as the process by which such products
are manufactured, pose significant hurdles to implementation that are still being worked out by the FDA.

A  reference  biological  product  is  granted  12  years  of  exclusivity  from  the  time  of  first  licensure  of  the  reference  product.  The  first  biological  product
submitted  under  the  abbreviated  approval  pathway  that  is  determined  to  be  interchangeable  with  the  reference  product  has  exclusivity  against  other
biologics submitting applications under the abbreviated approval pathway for the lesser of one year after the first commercial marketing, 18 months after
approval if there is no legal challenge, 18 months after the resolution in the applicant’s favor of a lawsuit challenging the biologic’s patents if an application
has been submitted, or 42 months after the application has been approved if a lawsuit is ongoing within the 42-month period.

63

Pediatric  exclusivity  is  another  type  of  regulatory  market  exclusivity  in  the  United  States.  Pediatric  exclusivity,  if  granted,  adds  six  months  to  existing
exclusivity periods and patent terms. This six-month exclusivity, which runs from the end of other exclusivity protection or patent term, may be granted
based on the voluntary completion of a pediatric trial in accordance with an FDA-issued “Written Request” for such a trial.

European Union Drug Development

In the European Union, our product candidates may also be subject to extensive regulatory requirements. Medicinal products can only be marketed if a
marketing authorization from the competent regulatory agencies has been obtained.

The  various  phases  of  preclinical  and  clinical  research  in  the  European  Union  are  subject  to  significant  regulatory  controls.  Clinical  trials  of  medicinal
products  in  the  European  Union  must  be  conducted  in  accordance  with  European  Union  and  national  regulations  and  the  International  Conference  on
Harmonization, or ICH, guidelines on Good Clinical Practices, or GCP. Although the EU Clinical Trials Directive 2001/20/EC has sought to harmonize the
European Union clinical trials regulatory framework, setting out common rules for the control and authorization of clinical trials in the European Union, the
EU  Member  States  have  transposed  and  applied  the  provisions  of  the  Directive  differently.  This  has  led  to  significant  variations  in  the  Member  State
regimes. To improve the current system, Regulation (EU) No 536/2014 on clinical trials on medicinal products for human use, which repealed Directive
2001/20/EC, was adopted on April 16, 2014 and published in the European Official Journal on May 27, 2014. The Regulation aims at harmonizing and
streamlining  the  clinical  trials  authorization  process,  simplifying  adverse  event  reporting  procedures,  improving  the  supervision  of  clinical  trials,  and
increasing their transparency. Although the Regulation entered into force on June 16, 2014, it has not yet become applicable, its enactment will occur six
months after the publication of a notice delivered by the European Commission on the European Union clinical trial portal and database, the EMA has
announced  that  the  effective  launch  of  the  portal  is  expected  in  December  2021.  Until  then  the  Clinical  Trials  Directive  2001/20/EC  will  still  apply.  In
addition,  the  transitory  provisions  of  the  new  Regulation  offer  the  sponsors  the  possibility  to  choose  between  the  requirements  of  the  Directive  and  the
Regulation for one year from the entry into application of the Regulation.

Under the current regime, before a clinical trial can be initiated it must be approved in each of the EU Member States where the trial is to be conducted by
two  distinct  bodies:  the  National  Competent  Authority,  or  NCA,  and  one  or  more  Ethics  Committees,  or  ECs.  Under  the  current  regime  all  suspected
unexpected serious adverse reactions, or SUSARs, to the investigated drug that occur during the clinical trial have to be reported to the NCA and ECs of
the Member State where they occurred.

European Union Marketing Authorizations

In  the  European  Economic  Area,  or  EEA  (which  is  comprised  of  the  27  Member  States  of  the  European  Union  plus  Norway,  Iceland  and
Liechtenstein),medicinal  products  can  only  be  commercialized  after  obtaining  a  Marketing  Authorization,  or  MA.  Marketing  Authorizations  may  be
granted either centrally (Community MA) or nationally (National MA).

The Community MA is issued centrally by the European Commission through the Centralized Procedure, based on the opinion of the CHMP of the EMA
and is valid throughout the entire territory of the EEA.

Regulation (EC) No 726/2004 of the European Parliament and of the Council of 31 March 2014 provides for the Centralized authorization procedure. The
centralized  procedure  results  in  a  single  marketing  authorization,  or  MA,  granted  by  the  European  Commission  that  is  valid  across  the  EEA.  The
centralized procedure is compulsory for human drugs that are: (i) derived from biotechnology processes, such as genetic engineering, (ii) contain a new
active substance indicated for the treatment of certain diseases, such as HIV/AIDS, cancer, diabetes, neurodegenerative diseases, autoimmune and other
immune dysfunctions and viral diseases, (iii) officially designated orphan medicines and (iv) advanced-therapy medicines, or ATMPs, such as gene therapy,
somatic cell therapy or tissue-engineered medicines.

Under Article 3 of the Regulation (EC) No 726/2004, the Centralized procedure is optional for any medicinal product not appearing in the Annex if: (1) the
medicinal product contains a new active substance which, on the date of entry into force of this Regulation, was not authorized in the Community; or (2)
the applicant shows that the medicinal product constitutes a significant therapeutic, scientific or technical innovation or that the granting of authorization in
accordance with this Regulation is in the interests of patients or animal health at Community level.

National MAs are issued nationally by the competent authorities of the Member States of the EEA and only cover their respective territory. National MAs
are  available  for  products  not  falling  within  the  mandatory  scope  of  the  Centralized  Procedure.  National  MAs  may  be  applied  for  through  the  Mutual
Recognition Procedure or Decentralized Procedure in order that multiple competent authorities in different member states of the EEA may each issue a
national MA in their territory for the same product on the back of the same application. We do not foresee that any of our current product candidates will be
suitable for a National MA as they fall within the mandatory criteria for the Centralized Procedure. Therefore, our product candidates will be approved
through Community MAs.

64

Under  the  above-described  procedures,  before  granting  the  MA,  the  EMA  or  the  competent  authorities  of  the  Member  States  of  the  EEA  make  an
assessment of the risk-benefit balance of the product on the basis of scientific criteria concerning its quality, safety and efficacy.

Market exclusivities

The European Union also provides opportunities for market exclusivity. For example, under Article 14(11) of the Regulation (EC) No 726/2004, without
prejudice to the law on the protection of industrial and commercial property, medicinal products for human use which have been authorized in accordance
with the provisions of this Regulation shall benefit from an eight-year period of data protection and an additional two-year period of marketing protection,
which may be extended further one year period, taking the total regulatory exclusivity period to a maximum of 11 years if, during the first eight years of
regulatory exclusivity, the MA holder obtains an authorization for one or more new therapeutic indications which, during the scientific evaluation prior to
their authorization, are held to bring a significant clinical benefit in comparison with existing therapies.

If granted, data exclusivity prevents regulatory authorities in the European Union from referencing the innovator’s data to assess a generic or biosimilar
application.  During  the  additional  two-year  period  of  market  exclusivity,  a  generic  or  biosimilar  marketing  authorization  can  be  submitted,  and  the
innovator’s data may be referenced, but no generic or biosimilar product can be marketed until the expiration of the market exclusivity.

Pediatric clinical trials

Under European law, medicinal products for use in the pediatric population are eligible for rewards and incentives. Under Regulation No 1901/2006, when
the intention is to apply for an MA in accordance with Article 7(1) (a) or (d), Article 8 or Article 30, a Pediatric Investigation Plan, or PIP, must be drawn
up and submitted to the EMA with a request for agreement, unless a deferral or waiver applies (e.g., because the relevant disease or condition occurs only
in adults) (Article 7).

Pursuant to Regulation (EC) No. 1901/2006, all applications for MA for new medicines must include, in addition to the particulars and documents referred
to in Directive 2001/83/EC, the results of all studies performed and details of all information collected in compliance with a PIP, agreed between regulatory
authorities and the applicant, unless the medicine is exempt because of a deferral or waiver of the EMA. Before the EMA is able to begin its assessment of
a Community MA application, it will validate that the applicant has complied with the agreed PIP. The applicant and the EMA may, where such a step is
adequately  justified,  agree  to  modify  a  PIP  to  assist  validation.  Modifications  are  not  always  possible;  may  take  longer  to  agree  than  the  period  of
validation  permits;  and  may  still  require  the  applicant  to  withdraw  its  marketing  authorization  application  and  to  conduct  additional  non-clinical  and
clinical studies.

Products that are granted a MA on the basis of the pediatric clinical trials conducted in accordance with the PIP are eligible for a six-month extension of the
protection under a supplementary protection certificate (if any is in effect at the time of approval) (Regulation No 1901/2006) or, in the case of orphan
medicinal products, a two-year extension of the orphan market exclusivity (Regulation (EC) No 1901/2006, see above). This pediatric reward is subject to
specific conditions and is not automatically available when data in compliance with the PIP are developed and submitted.

We do not currently know whether our product candidates will need to be covered by a PIP.

Orphan designation

Under  Article  8  of  the  Regulation  (EC)  No  141/2000,  products  receiving  orphan  designation  in  the  European  Union  can  receive  ten  years  of  market
exclusivity,  during  which  time  no  similar  medicinal  product  may  be  placed  on  the  market  for  the  same  therapeutic  indication.  Under  Article  37  of  the
Regulation  (EC)  No  1901/2006,  an  orphan  product  can  also  obtain  an  additional  two  years  of  market  exclusivity  in  the  European  Union  for  pediatric
studies (in this case for orphan medicinal product no extension to any supplementary protection certificate can be granted, see further detail below).

Under  Article  3  of  the  Regulation  (EC)  No  141/2000,  a  medicinal  product  may  be  designated  as  orphan  if:  (1)  (a)  it  is  intended  for  the  diagnosis,
prevention  or  treatment  of  a  life-threatening  or  chronically  debilitating  condition  affecting  not  more  than  five  in  ten  thousand  persons  in  the  European
Union when the application is made, or (b) it is intended for the diagnosis, prevention or treatment of a life-threatening, seriously debilitating or serious and
chronic condition in the European Union and that without incentives it is unlikely that the marketing of the medicinal product in the European Union would
generate sufficient return to justify the necessary investment; and (2) that there exists no satisfactory method of diagnosis, prevention or treatment of the
condition in question that has been authorized in the European Union or, if such method exists, that the medicinal product will be of significant benefit to
those affected by that condition, as defined in Regulation (EC) 847/2000.

65

Pursuant to Regulation (EC) No. 847/2000 of April 27, 2000 laying down the provisions for implementation of the criteria for designation of a medicinal
product  as  an  orphan  medicinal  product  and  definitions  of  the  concepts  “similar  medicinal  product”  and  “clinical  superiority”,  an  application  for  the
designation  of  a  medicinal  product  as  an  orphan  drug  may  be  submitted  at  any  stage  of  development  of  the  medicinal  product  before  filing  of  an  MA
application.

Orphan  medicinal  products  are  eligible  for  financial  incentives  such  as  reduction  of  fees  or  fee  waivers  and  scientific  assistance  for  study  proposals
(Articles 6 and 9). The application for orphan medicinal product designation must be submitted before the application for marketing authorization (Article
5). The applicant will receive a fee reduction for the marketing authorization application if the orphan medicinal product designation has been granted, but
not  if  the  designation  is  still  pending  at  the  time  the  marketing  authorization  is  submitted.  Orphan  medicinal  product  designation  does  not  convey  any
advantage in, or shorten the duration of, the regulatory review and approval process.

The 10-year market exclusivity may be reduced to six years if, at the end of the fifth year, it is established, in respect of the medicinal product concerned,
that the above-mentioned criteria for orphan medicinal product designation are no longer met, in other words, when it is shown on the basis of available
evidence that the product is sufficiently profitable not to justify maintenance of market exclusivity (Article 8).

Notwithstanding the foregoing, an MA may be granted, for the same therapeutic indication, to a similar medicinal product if:

•

•

•

the holder of the MA for the original orphan medicinal product has given its consent to the second applicant;

the holder of the MA for the original orphan drug is unable to supply sufficient quantities of the medicinal product; or

the second applicant can establish in the application that the second medicinal product, although similar to the orphan medicinal product already
authorized, is safer, more effective or otherwise clinically superior.

Pharmacovigilance system

The holder of an MA must establish and maintain a pharmacovigilance system and appoint an individual qualified person for pharmacovigilance, or QPPV,
who  is  responsible  for  oversight  of  that  system.  Key  obligations  include  expedited  reporting  of  suspected  serious  adverse  reactions  and  submission  of
periodic safety update reports, or PSURs to the competent authority.

Also, the competent national authority can ask for interim PSURs outside the submission schedule.

All new MAAs must include a risk management plan, or RMP, describing the risk management system that the company will put in place and documenting
measures to prevent or minimize the risks associated with the product. The regulatory authorities may also impose specific obligations as a condition of the
MA. Such risk-minimization measures or post-authorization obligations may include additional safety monitoring, more frequent submission of PSURs, or
the  conduct  of  additional  clinical  trials  or  post-authorization  safety  studies.  RMPs  and  PSURs  are  routinely  available  to  third  parties  requesting  access,
subject to limited redactions.

Advertising

All advertising and promotional activities for the product must be consistent with the approved summary of product characteristics, and therefore all off-
label  promotion  is  prohibited.  Direct-to-consumer  advertising  of  prescription  medicines  is  also  prohibited  in  the  European  Union.  Although  general
requirements for advertising and promotion of medicinal products are established under EU directives, the details are governed by regulations in each EU
Member State and can differ from one country to another.

If  we  fail  to  comply  with  applicable  foreign  regulatory  requirements,  we  may  be  subject  to,  among  other  things,  fines,  suspension  or  withdrawal  of
regulatory approvals, product recalls, seizure of products, operating restrictions and criminal prosecution.

Other European Regulatory Matters

French Regulatory Framework

France: Clinical trials

General framework: In the European Union, pending the entry into force of Regulation No. 536/2014, the regulation governing clinical trials is currently
based on European Directive No. 2001/20/EC of April 4, 2001 relative to the implementation of good clinical practices in the conduct of clinical trials on
medicinal products for human use. Each Member State of the European Union had to transpose this Directive into national law, which resulted in Member
States adapting it to their own regulatory framework.

In  France,  for  example,  Directive  No.  2001/20/EC  has  been  implemented  by  Law  2004-806  of  August  9,  2004  regarding  the  public  health  policy  and
Decree 2006-477 of April 26, 2006, modifying the section of the Public Health Code, or PHC, on biomedical

66

research. The Act of August 9, 2004 was notably amended by Law No. 2012-300 of March 5, 2012, or the “Loi Jardé,” related to biomedical research
involving  human  subjects,  and  French  Order  No.  2016-800  of  June  16,  2016  related  to  clinical  trials  of  medicinal  products  for  human  use,  which  has
recently adapted French law to the new provisions of Regulation No. 536/2014 of the European Parliament and of the Council of April 16, 2014 related to
clinical trials of medicinal products for human use, which repealed Directive 2001/20/EC. The Jardé Act was inapplicable for a long time, and applicable
since November 18, 2016, date of its enforcement decree.

This decree specifies the modalities for carrying out research involving the human person. In particular, it specifies the definitions applicable to the various
categories of research falling within its scope, the operation of the committees for the protection of persons (CPP), the procedures for requesting an opinion
from the CPP and authorization from the ANSM, as well as the rules applicable to vigilance.

Applicable provisions: French Act No. 2012-300 of March 5, 2012, or the “Loi Jardé,” related to research involving the human person, and French Order
No. 2016-800 of 16 June 2016 related to research involving the human person have adapted French law to the new provisions of Regulation No. 536/2014.
Article  L.  1121-4  and  L.  1123-8  PHC  currently  in  force  (as  amended  by  Law  2004-806,  Law  2012-300  Order  2016-800),  establishes  a  system  of  prior
authorization for interventional clinical trials only. This authorization is granted by the French Medicines Agency, or ANSM. The conduct of all clinical
trials (interventional or not) also requires a favorable opinion of the competent Ethics Committee (Comité de protection des personnes – CPP).

Ethics Committee assessment: Under Article L. 1123-7 of the PHC, the competent Ethics Committee—selected randomly by drawing lots under Article
L.  1123-6  of  the  PHC—shall  notably  assess  whether  the  conditions  in  which  the  trial  will  be  conducted  are  valid.  This  assessment  should  be  based  on
whether:  adequate  protection  is  offered  to  individuals,  in  particular  to  participants;  adequate  information  is  provided  to  the  participants  and  appropriate
procedure is in place to obtain their informed consent; the project is relevant; the benefits/risks assessment is satisfactory; the objectives of the trial are
adequate  to  the  means  implemented;  the  qualification  of  the  investigator(s)  is  satisfactory;  the  conditions  and  amount  of  patients’  remuneration  is
compliant; and the method for recruiting participants is adequate.

ANSM authorization: The ANSM, after submission of the complete file containing not only information on the clinical protocol, but also specific product
data  and  its  quality  control,  as  well  as  results  of  preclinical  studies,  may  inform  the  sponsor  that  it  objects  to  the  implementation  of  the  research.  The
sponsor can then modify the contents of its research project and submit this amended or supplemented request to the ANSM. If the sponsor does not alter
the  content  of  its  request,  the  request  is  considered  rejected.  Under  Article  R.  1123-38  of  the  PHC,  the  time  limit  for  the  examination  of  a  request  for
authorization cannot exceed 60 days from the receipt of the complete file. Under Article L. 1123-11 of the PHC, in the event of risk to public health or if
the  ANSM  considers  that  the  conditions  in  which  the  research  is  implemented  no  longer  correspond  to  the  conditions  indicated  in  the  request  for
authorization or does not comply with the provisions of the Public Health Code, it may at any time request changes to procedures for the realization of
research, and suspend or ban this research.

The decision of the ANSM of November 24, 2006 sets the rules for Good Clinical Practice, or GCPs, for clinical trials on medicines for human use as
referred to in Article L. 1121-3 of the PHC. GCPs aim to ensure both the reliability of data arising from clinical trials and the protection of the persons
participating  in  these  clinical  trials.  GCPs  apply  to  all  clinical  trials,  including  pharmacokinetics,  bioavailability  and  bioequivalence  studies  in  healthy
volunteers as well as Phase 2 to Phase 4 clinical trials.

Depending  of  the  type  of  personal  data  processing  carried  out  during  clinical  trials  and  the  nature  of  such  trials,  it  might  be  necessary  to  carry  out
formalities by the French Data Protection Authority, or the CNIL. The sponsor of the trial might have to file with the CNIL a compliance undertaking with
one of CNIL's reference methodologies through a simplified notification procedure or file for a request of authorization. Patients then always shall have a
right  to  access  and  correct  their  personal  data,  and  to  object  to  their  processing/withdraw  their  consent,  require  their  deletion  or  a  limitation  of  the
processing pursuant to the GDPR.

The main French legislative and regulatory texts relating to the conduct of clinical trials are as follows (which are mainly codified in the French Public
Health Code (Articles L. 1121-1 to L. 1126-12 and Articles R. 1121-1 to R. 1125-26)):

•

Regulation No. 536/2014, of the European Parliament and of the Council of April 16, 2014 related to clinical trials of medicinal products for
human use, which repealed Directive No. 2001/20/EC;

• Decree No. 2017/884 of May 9, 2017 modifying regulatory provisions related to research involving human subjects;

• Decree No. 2016-1538 of November 16, 2016 on the Unique Agreement for the implementation of commercial clinical trials involving human

beings in health care institutions;

• Decree No. 2016-1537 of November 16, 2016 related to research involving human beings;

• Order No. 2016-800 of June 16, 2016 related to research involving human beings;

67

•

•

Loi Jardé, Law No. 2012-300 of March 5, 2012, related to biomedical research involving human subjects;

Law 2004-806 of August 9, 2004 related to the public health policy;

• Decision of December 29, 2015 establishing the rules of Good Manufacturing Practice;

•

•

Law 78-17 of January 6, 1978, as amended, on data protection and its implementing decrees;

Law 2002-303 of March 4, 2002 and its implementing decrees regarding patient’s rights and the quality of the healthcare system;

• Deliberation No. 2018-153 of May 3, 2018 approving a reference methodology relating to the processing of personal data implemented in the

context of research in the field of health with the consent of the person concerned (MR -001);

• Decision No. 2016-262 of July 21, 2016 concerning the standard methodology for the processing of personal data carried out within the context

of clinical trials (standard methodology MR-001);

• Deliberation No. 2015-256 of July 16, 2015 approving a reference methodology relating to the processing of personal data implemented in the

context of non-interventional performance studies on in vitro diagnostic medical devices (MR- 002);

• Decision  No.  2016-263  of  July  21,  2016  concerning  the  approval  of  a  standard  methodology  for  processing  personal  data  in  the  context  of

research in the field of health, which does not require the express consent of the person involved (methodology MR-003);

• Deliberation No 2018-154 of May 3, 2018 approving the reference methodology relating to the processing of personal data implemented in the

context of research in the field of health that does not require the collection of the consent of the person concerned (MR-003);

• Deliberation No 2018-155 of May 3, 2018 approving the reference methodology relating to the processing of personal data implemented in the

framework of research not involving the human person, studies and evaluations in the field of health (MR-004);

• Deliberation No. 2018-256 of June 7, 2018 approving a reference methodology relating to data processing requiring access by health institutions
and federations to PMSI data and centralized emergency passage summaries (ERs) and made available on the secure platform of the ATIH (MR-
005);

• Deliberation No. 2018-257 of June 7, 2018 approving a reference methodology relating to the processing of data requiring access on behalf of
persons  producing  or  marketing  products  mentioned  in  II  of  Article  L.  5311-1  of  the  public  health  code  to  centralized  PMSI  data  and  made
available by ATIH through a secure solution (MR-006);

•

•

Law 2011-2012 of December 29, 2011 strengthening the safety of medicines and health products;

Law  2000-230  of  March  13,  2000,  Decree  2001-272  of  March  30,  2001  as  amended,  and  Decree  2002-535  of  April  18,  2002,  relating  to
electronic signatures;

• Decree No. 2016-1871 of December 28, 2016 concerning the processing of personal data on the new “National Health Data System” of France;

• Decision of November 24, 2006 establishing the rules for Good Clinical Practice;

•

•

Law of January 6, 1978 on Information Technology, Data Files and Civil Liberties as amended; and

Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to
the processing of personal data and on the free movement of such data.

Protection of Clinical Trial Subjects

Under  French  law  (Article  L.  1121-2  PHC),  a  clinical  trial  may  be  undertaken  only  if  (i)  it  is  based  on  the  latest  stage  of  scientific  knowledge  and  on
sufficient preclinical testing, (ii) the foreseeable risk incurred by the subjects is outweighed by the benefit expected for these persons or the interest of the
research,  (iii)  it  aims  at  expanding  scientific  knowledge  and  the  means  possible  to  improve  the  human  condition  and  (iv)  the  research  was  designed  to
reduce the pain, inconveniences, fear and other predictable inconvenience connected to the disease or to the research, by taking into account in particular
the degree of maturity of minors and the capacity of understanding of adults unable to express an informed consent. All these conditions must be fulfilled
in order to start a clinical trial.

A  clinical  trial  (Article  L.  1121-3  PHC)  may  be  undertaken  under  the  following  technical  conditions:  (a)  under  the  direction  and  the  supervision  of  a
qualified  physician  and  (b)  under  adapted  material  and  technical  conditions,  compatible  with  the  rigorous  imperatives  of  science  and  the  safety  of  the
clinical trial subjects.

68

Two documents must be provided to clinical trial subjects before the conduct of the trial. First, the patient must receive a patient information sheet which
must contain in particular a description of the objective, the methodology and the time period of the research, as well as a description of the alternative
treatments, the number of subjects expected to take part in the study, the anticipated benefits, the constraints and the foreseeable risks resulting from the
administration of the products that are the object of the clinical trials but also the favorable opinion of the ethics committee and the authorization of the
ANSM, and information on processing of personal data. The information communicated must be summarized in a written document delivered to the patient
prior to any administration of products by the investigator or a physician (Article L. 1122-1 PHC).

Second, the patient must confirm his or her agreement to participate in the clinical study by signing an informed consent form (Article L. 1122-1-1 PHC).
For each study, patient information must include a right to refuse to participate and to withdraw consent at any time and by any means without further
consequences or prejudice. A clinical trial on a minor may be undertaken only if, in particular, the informed consent of the parents or legal representative
has been obtained. Furthermore, a clinical trial on adults under guardianship requires the informed consent of the adult’s legal representative.

Responsibility of the sponsor and insurance obligation of the sponsor

The sponsor shall indemnify the subject of the trial in case of damage arising as a consequence of the research, unless he proves that the damage does not
result from his fault or the fault of any other person intervening in the trial (Article L.1121-10 PHC). The sponsor must have an insurance covering its civil
liability and the liability of any person intervening in the research, for any damage arising from the trial for a minimum of 10 years as of the end of the trial
(Article L.1121-10 PHC).

Under French law, the State is responsible for compensating the damage resulting from a medical accident occurring during a clinical trial in the event of
no fault, i.e. in the event of a medical accident for which no fault is found. In this respect, a mechanism provides for compensation by the National Office
for Medical Accidents (Office national des accidents médicaux), as part of national solidarity.

France: Post-marketing requirements

Any  pharmaceutical  product  distributed  in  France  will  be  subject  to  pervasive  and  continuing  regulation  by  the  ANSM,  including,  among  other  things,
record-keeping  requirements,  reporting  of  adverse  experiences  with  the  product,  providing  updated  safety  and  efficacy  information,  distribution
requirements,  complying  with  promotion  and  advertising  requirements.  French  law  strictly  regulates  labeling,  advertising,  promotion  and  other  types  of
information on products that are placed on the market and imposes requirements and restrictions on drug manufacturers, such as those related to direct-to-
consumer advertising, the prohibition on promoting products for uses or in patient populations that are not described in the product’s approved labeling
(known as “off-label use”), industry-sponsored scientific and educational activities.

Failure to comply with the applicable regulatory requirements may result in restrictions on the marketing of a product or withdrawal of the product from the
market as well as possible administrative or criminal sanctions.

France: Declaration of Financial Interests

“Transparency”  or  “French  Sunshine  Act”:  The  French  Public  Health  Code  (PHC)  contains  certain  provisions  regarding  transparency  of  fees  and
rewards received by some healthcare professionals from industries, i.e. companies manufacturing or marketing health products, resulting from an Act No.
2011-2012 of December 29, 2011, amended by an Act No. 2016-41 of 26 January 2016, and corresponding implementing decrees. It results from these
provisions (Article L.1453-1 and D. 1453-1 and seq. PHC) that companies manufacturing or marketing healthcare products (medicinal products, medical
devices, etc.) in France shall publicly disclose (on a specific public website available at: https://www.entreprises-transparence.sante.gouv.fr) the advantages
and  fees  paid  to  healthcare  professionals  amounting  to  10  euros  or  above,  as  well  as  the  agreements  concluded  with  the  latter,  along  with  detailed
information about each agreement (the precise subject matter of the agreement, the date of signature of the agreement, its end date, the total amount paid to
the healthcare professional, etc.).

“Anti-gift”: The French Public Health Code also contains “anti-gift” provisions setting out a general prohibition of payments and rewards from industries,
i.e. companies manufacturing or marketing health products, to healthcare professionals, with limited exceptions and strictly defines the conditions under
which such payments or rewards are lawful. The provisions resulting from an Act No. 2011-2012 were amended by an Order No. 2017-49 of January 19,
2017 ratified by the Law 2019-774 of July 24, 2019 which notably extended their application to a broader range of legal and physical persons - including
social media influencers, specified the scope of the operations excluded from the prohibition and those authorized under some conditions, and provided for
a new authorization process. The changes of the “anti-gift” rules were aimed to enter into force on a date provided by decree or, at the latest, on July 1,
2018. In the absence of implementing texts to date, the new provisions (Articles L. 1453-3 to L. 1453-12 PHC) entered into force on July 1, 2018. A decree
of  August  7,  2020  sets  out  the  amounts  for  which  the  benefit,  depending  on  the  benefit  provided,  is  considered  negligible  and  does  not  require  any
declaratory action. A second decree of August 7, 2020 defines the amounts above

69

which the agreement is subject to an authorization regime, with amounts less than or equal to these amounts requiring a simple declaration. The decree also
provide with the declaration schedule to the competent authority.

French Pharmaceutical Company Status

We have the regulated status of pharmaceutical establishment and operating company, which allows us to manufacture and market our product candidates.
Obtaining  a  pharmaceutical  establishment  license,  either  as  a  distributor  or  as  a  manufacturer  requires  the  submission  of  an  application  dossier  to  the
ANSM. The application package will vary depending on the type of application (distribution license or manufacturing license). The ANSM grants such
license after verifying that the company has adequate premises, the necessary personnel and adequate procedures to carry out the proposed pharmaceutical
activities.

Reimbursement and Health Reform

Significant uncertainty exists as to the coverage and reimbursement status of any product candidates for which we obtain regulatory approval. In the case of
GRASPA, we have entered into distribution arrangements with Orphan Europe and Teva for marketing in Europe and Israel, respectively, and those third
parties will be responsible for obtaining coverage and reimbursement for GRASPA in those territories if it is approved. Our agreement with Orphan Europe
was  terminated  in  the  first  half  of  2019  without  financial  consequences  to  us.  The  agreement  with  Teva  is  still  in  effect,  but,  at  this  time,  there  are  no
current ongoing obligations under the agreement. Sales of our products will depend, in part, on the extent to which our products, once approved, will be
covered and reimbursed by third-party payors, such as government health programs, commercial insurance and managed healthcare organizations. These
third-party payors are increasingly reducing reimbursement levels for medical products and services. The process for determining whether a third-party
payor  will  provide  coverage  for  a  drug  product  typically  is  separate  from  the  process  for  setting  the  price  of  a  drug  product  or  for  establishing  the
reimbursement rate that a payor will pay for the drug product once coverage is approved. Third-party payors may limit coverage to specific drug products
on an approved list, also known as a formulary, which might not include all of the approved drugs for a particular indication.

To secure coverage and reimbursement for any product candidate that might be approved for sale, we may need to conduct expensive pharmacoeconomic
studies in order to demonstrate the medical necessity and cost-effectiveness of the product candidate, in addition to the costs required to obtain FDA or
other  comparable  regulatory  approvals.  Whether  or  not  we  conduct  such  studies,  our  product  candidates  may  not  be  considered  medically  necessary  or
cost-effective. A third-party payor’s decision to provide coverage for a drug product does not imply that an adequate reimbursement rate will be approved.
Further,  one  payor’s  determination  to  provide  coverage  for  a  product  does  not  assure  that  other  payors  will  also  provide  coverage,  and  adequate
reimbursement, for the product. Third-party reimbursement may not be sufficient to enable us to maintain price levels high enough to realize an appropriate
return on our investment in product development.

The containment of healthcare costs has become a priority of federal and state governments, and the prices of drugs have been a focus in this effort. The
U.S. government, state legislatures and foreign governments have shown significant interest in implementing cost-containment programs, including price
controls, restrictions on reimbursement, utilization management and requirements for substitution of generic products. Adoption of price controls and cost-
containment measures, and adoption of more restrictive policies in jurisdictions with existing controls and measures, could further limit our net revenue and
results. Decreases in third-party reimbursement for our product candidates or a decision by a third-party payor to not cover our product candidates could
reduce physician usage of the product candidates and could have a material adverse effect on our sales, results of operations and financial condition.

For  example,  the  ACA  has  already  had,  and  is  expected  to  continue  to  have,  a  significant  impact  on  the  health  care  industry.  The  ACA  has  expanded
coverage for the uninsured while at the same time containing overall healthcare costs. With regard to pharmaceutical products, among other things, the
ACA  expanded  and  increased  industry  rebates  for  drugs  covered  under  Medicaid  programs  and  made  changes  to  the  coverage  requirements  under  the
Medicare Part D program. Some of the provisions of the ACA have yet to be implemented, and there have been judicial and Congressional challenges to
certain aspects of the ACA, as well as recent efforts by the Trump administration to repeal or replace certain aspects of the ACA. Since January 2017,
President Trump signed several Executive Orders and other directives designed to delay the implementation of certain provisions of the ACA or otherwise
circumvent some of the requirements for health insurance mandated by the ACA. Concurrently, Congress considered legislation that would repeal or repeal
and replace all or part of the ACA. While Congress has not passed comprehensive repeal legislation, several bills affecting the implementation of certain
taxes  under  the  ACA  have  been  signed  into  law.  The  Tax  Act  included  a  provision  which  repealed,  effective  January  1,  2019,  the  tax-based  shared
responsibility  payment  imposed  by  the  ACA  on  certain  individuals  who  fail  to  maintain  qualifying  health  coverage  for  all  or  part  of  a  year  that  is
commonly  referred  to  as  the  “individual  mandate.”  The  2020  federal  spending  package  permanently  eliminated,  effective  January  1,  2020,  the  ACA-
mandated “Cadillac” tax on high-cost employer-sponsored health coverage and medical device tax and, effective January 1, 2021, also eliminates the health
insurer tax. Further, the BBA, among other things, amended the ACA, effective January 1, 2019, to increase from 50 percent to 70 percent the point-of-sale
discount that is owed by pharmaceutical manufacturers who participate in Medicare Part D and to close the coverage gap in most Medicare drug plans,
commonly referred to as the “donut hole.” On December 14, 2018, a Texas U.S. District Court Judge ruled that

70

ACA is unconstitutional in its entirety because the “individual mandate” was repealed by Congress as part of the Tax Act. Additionally, on December 18,
2019, the U.S. Court of Appeals for the 5th Circuit upheld the District Court ruling that the individual mandate was unconstitutional and remanded the case
back to the District Court to determine whether the remaining provisions of the ACA are invalid as well. The U.S. Supreme Court is currently reviewing
this case, although it is uncertain when a decision will be made. Although the U.S. Supreme Court has yet ruled on the constitutionality of the ACA, on
January  28,  2021,  President  Biden  issued  an  executive  order  to  initiate  a  special  enrollment  period  from  February  15,  2021  through  May  15,  2021  for
purposes of obtaining health insurance coverage through the ACA marketplace. The executive order also instructs certain governmental agencies to review
and reconsider their existing policies and rules that limit access to healthcare, including among others, reexamining Medicaid demonstration projects and
waiver programs that include work requirements, and policies that create unnecessary barriers to obtaining access to health insurance coverage through
Medicaid or the ACA. It is unclear how the Supreme Court ruling, other such litigation, and the healthcare reform measures of the Biden administration
will impact ACA.

In addition, other legislative changes have been proposed and adopted in the United States since the ACA was enacted. For example, on August 2, 2011,
the Budget Control Act of 2011 among other things, created measures for spending reductions by Congress. Specifically, the Joint Select Committee on
Deficit  Reduction  was  created  to  recommend  to  Congress  proposals  in  spending  reductions.  The  Joint  Select  Committee  on  Deficit  Reduction  did  not
achieve  a  targeted  deficit  reduction  of  at  least  $1.2  trillion  for  the  years  2012  through  2021,  thereby  triggering  the  legislation’s  automatic  reduction  to
several government programs. This includes aggregate reductions to Medicare payments to providers of up to 2% per fiscal year, started in April 2013 and
which,  due  to  subsequent  legislative  amendments,  including  the  BBA,  will  stay  in  effect  through  2030  unless  additional  Congressional  action  is  taken.
However,  COVID-19  relief  support  legislation  suspended  the  2%  Medicare  sequester  from  May  1,  2020  through  March  31,  2021.  Additionally,  on
January 2, 2013, President Obama signed into law the American Taxpayer Relief Act of 2012, which, among other things, reduced Medicare payments to
several providers, including hospitals, imaging centers and cancer treatment centers, and increased the statute of limitations period for the government to
recover overpayments to providers from three to five years.

Recently, there has been heightened governmental scrutiny over the manner in which manufacturers set prices for their marketed products. Such scrutiny
has resulted in several recent U.S. Congressional inquiries and proposed and enacted federal and state legislation designed to, among other things, bring
more transparency to drug pricing, review the relationship between pricing and manufacturer patient programs, reduce the cost of drugs under Medicare
and  reform  government  program  reimbursement  methodologies  for  drug  products.  At  the  federal  level,  the  Trump  administration’s  budget  proposal  for
fiscal year 2021 includes a $135 billion allowance to support legislative proposals seeking to reduce drug prices, increase competition, lower out-of-pocket
drug costs for patients, and increase patient access to lower-cost generic and biosimilar drugs. Further, the Trump administration released a “Blueprint”, or
plan,  to  lower  drug  prices  and  reduce  out  of  pocket  costs  of  drugs  that  contained  proposals  to  increase  drug  manufacturer  competition,  increase  the
negotiating power of certain federal healthcare programs, incentivize manufacturers to lower the list price of their products, and reduce the out of pocket
costs of drug products paid by consumers.On July 24, 2020 and September 13, 2020, the Trump administration announced several executive orders related
to prescription drug pricing that seek to implement several of the administration’s proposals. As a result, the FDA released a final rule on September 24,
2020, effective November 30, 2020, providing guidance for states to build and submit importation plans for drugs from Canada. Further, on November 20,
2020, HHS finalized a regulation removing safe harbor protection for price reductions from pharmaceutical manufacturers to plan sponsors under Part D,
either directly or through pharmacy benefit managers, unless the price reduction is required by law. The implementation of the rule has been delayed by the
Biden administration from January 1, 2022 to January 1, 2023 in response to ongoing litigation. The rule also creates a new safe harbor for price reductions
reflected  at  the  point-of-sale,  as  well  as  a  safe  harbor  for  certain  fixed  fee  arrangements  between  pharmacy  benefit  managers  and  manufacturers  ,  the
implementation of which have also been delayed pending review by the Biden administration until March 22, 2021. On November 20, 2020, CMS issued
an  interim  final  rule  implementing  President  Trump’s  Most  Favored  Nation  executive  order,  which  would  tie  Medicare  Part  B  payments  for  certain
physician-administered drugs to the lowest price paid in other economically advanced countries, effective January 1, 2021. On December 28, 2020, the
U.S. District Court in Northern California issued a nationwide preliminary injunction against implementation of the interim final rule. The likelihood of
implementation  of  any  of  the  other  Trump  administration  reform  initiatives  is  uncertain  as  it  is  unclear  whether  the  Biden  administration  will  work  to
reverse these measures or pursue similar policy initiatives. At the state level, legislatures have increasingly passed legislation and implemented regulations
designed to control pharmaceutical and biological product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain
product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and
bulk purchasing.

We expect that additional federal healthcare reform measures will be adopted in the future, any of which could limit the amounts that federal and state
governments will pay for healthcare products and services, and in turn could significantly reduce the projected value of certain development projects and
reduce our profitability. Further, it is possible that additional action is taken in response to the COVID-19 pandemic.

In addition, in some foreign countries, the proposed pricing for a drug must be approved before it may be lawfully marketed. The requirements governing
drug pricing vary widely from country to country. For example, the European Union provides options for its

71

Member States to restrict the range of medicinal products for which their national health insurance systems provide reimbursement and to control the prices
of medicinal products for human use. A Member State may approve a specific price for the medicinal product or it may instead adopt a system of direct or
indirect controls on the profitability of the company placing the medicinal product on the market. For example, in France, effective market access will be
supported  by  agreements  with  hospitals  and  products  may  be  reimbursed  by  the  Social  Security  Fund.  The  price  of  medicines  is  negotiated  with  the
Economic Committee for Health Products, or CEPS. There can be no assurance that any country that has price controls or reimbursement limitations for
pharmaceutical products will allow favorable reimbursement and pricing arrangements for any of our product candidates. Historically, products launched in
the European Union do not follow price structures of the United States and generally prices tend to be significantly lower.

Other Healthcare Laws and Compliance Requirements

Our  business  operations  in  the  United  States  and  our  arrangements  with  clinical  investigators,  healthcare  providers,  consultants,  third  party  payors  and
patients may expose us to broadly applicable federal and state fraud and abuse and other healthcare laws. These laws may impact, among other things, our
research, proposed sales, marketing and education programs of our product candidates that obtain marketing approval. The laws that may affect our ability
to operate include, among others:

•

•

the  U.S.  federal  Anti-Kickback  Statute,  which  prohibits,  among  other  things,  persons  and  entities  from  knowingly  and  willfully  soliciting,
receiving,  offering  or  paying  remuneration  (including  any  kickback,  bribe  or  rebate),  directly  or  indirectly,  in  cash  or  in  kind,  to  induce  or
reward, or in return for, either the referral of an individual for, or the purchase, lease, order, or recommendation of, an item, good, facility or
service reimbursable under a federal healthcare program, such as the Medicare and Medicaid programs;

the U.S. federal civil and criminal false claims laws, including the civil False Claims Act, which can be enforced by individuals, on behalf of the
government through civil whistleblower or qui tam actions, and civil monetary penalty laws prohibits individuals and entities from, among other
things, knowingly presenting, or causing to be presented, claims for payment from Medicare, Medicaid, or other third-party payors that are false
or fraudulent, or making a false statement or record material to payment of a false claim or avoiding, decreasing, or concealing an obligation to
pay money to the federal government, including for example, providing inaccurate billing or coding information to customers or promoting a
product off-label;

• HIPAA, which created additional federal, civil and criminal statutes that prohibit knowingly and willfully executing or attempting to execute a
scheme to defraud any healthcare benefit program, knowingly and willfully embezzling or stealing from a healthcare benefit program, willfully
obstructing a criminal investigation of a healthcare offense, and knowingly and willingly falsifying, concealing or covering up a material fact or
making materially false statements, fictitious, or fraudulent statements in connection with the delivery of or payment for healthcare benefits,
items, or services;

•

the federal Physician Payments Sunshine Act, enacted as part of the ACA, which requires applicable manufacturers of drugs, devices, biologics
and  medical  supplies  for  which  payment  is  available  under  Medicare,  Medicaid,  or  the  Children’s  Health  Insurance  Program,  with  specific
exceptions,  to  track  and  annually  report  to  CMS  payments  and  other  transfers  of  value  provided  to  physicians  (defined  to  include  doctors,
dentists, optometrists, podiatrists and chiropractors) and teaching hospitals and certain ownership and investment interests held by physicians or
their  immediate  family  members.  Beginning  in  2022,  applicable  manufacturers  also  will  be  required  to  report  such  information  regarding  its
payments and other transfers of value to physician assistants, nurse practitioners, clinical nurse specialists, certified registered nurse anesthetists
and certified nurse midwives during the previous year;

• HIPAA,  as  amended  by  HITECH,  and  their  implementing  regulations,  which  imposes  certain  requirements  on  covered  entities,  and  their
business associates that perform functions or activities that involve individually identifiable health information on their behalf as well as their
covered subcontractors, relating to the privacy, security and transmission of individually identifiable health information; and

•

State and/or foreign equivalents of each of the above federal laws and regulations, such as: state anti-kickback and false claims laws which may
apply  to  items  or  services  reimbursed  by  any  third-party  payor,  including  commercial  insurers;  state  marketing  and/or  transparency  laws
applicable to manufacturers that may be broader in scope than the federal requirements; state laws that require biopharmaceutical companies to
comply  with  the  biopharmaceutical  industry’s  voluntary  compliance  guidelines  and  the  relevant  compliance  guidance  promulgated  by  the
federal  government;  state  laws  that  require  drug  manufacturers  to  report  information  related  to  payments  and  other  transfers  of  value  to
physicians  and  other  healthcare  providers,  marketing  expenditures,  or  drug  pricing;  state  and  local  laws  that  require  the  registration  of
pharmaceutical  sales  representatives;  and  state  and/or  foreign  laws  governing  the  privacy  and  security  of  health  information  in  certain
circumstances,  many  of  which  differ  from  each  other  in  significant  ways  and  may  not  have  the  same  effect  as  HIPAA,  thus  complicating
compliance efforts.

The  ACA  broadened  the  reach  of  the  federal  fraud  and  abuse  laws  by,  among  other  things,  amending  the  intent  requirement  of  the  U.S.  federal  Anti-
Kickback Statute and certain federal criminal healthcare fraud statutes. Pursuant to the statutory amendment, a person or

72

entity no longer needs to have actual knowledge of those statutes or specific intent to violate them in order to have committed a violation. In addition, the
ACA provides that the government may assert that a claim including items or services resulting from a violation of the U.S. federal Anti-Kickback Statute
constitutes a false or fraudulent claim for purposes of the civil False Claims Act or the civil monetary penalties statute.

Efforts to ensure that our business arrangements with third parties will comply with applicable healthcare laws will involve substantial costs. It is possible
that governmental authorities will conclude that our business practices may not comply with current or future statutes, regulations or case law involving
applicable  fraud  and  abuse  or  other  healthcare  laws.  If  our  operations  are  found  to  be  in  violation  of  any  of  these  laws  or  any  other  governmental
regulations that may apply to us, we may be subject to, for example, significant administrative, civil, and criminal penalties, damages, fines, disgorgement,
contractual  damages,  reputational  harm,  diminished  profits  and  future  earnings,  imprisonment,  exclusion  from  government  funded  healthcare  programs,
such  as  Medicare  and  Medicaid,  additional  reporting  requirements  and  oversight  if  we  become  subject  to  a  corporate  integrity  agreement  or  similar
agreement  to  resolve  allegations  of  non-compliance  with  these  laws  and  the  curtailment  or  restructuring  of  our  operations.  If  the  physicians  or  other
healthcare  providers  or  entities  with  whom  we  expect  to  do  business  are  found  to  be  not  in  compliance  with  applicable  laws,  they  may  be  subject  to
significant administrative, civil, and criminal sanctions, including exclusions from government funded healthcare programs.

4.C.Organizational Structure.

The following diagram illustrates our corporate structure:

4.D.Property, Plants and Equipment.

Our principal executive offices are located at 60 Avenue Rockefeller, 69008 Lyon, France. We lease office and laboratory space, which together consist of
approximately 1,400 square meters, in Lyon, France. The lease for this facility expires in June 2024, and we have the ability to terminate the lease early in
June  2021.  In  July  2019,  we  entered  into  another  lease  in  Lyon,  France  for  additional  offices  and  laboratory  space,  which  together  will  consist  of
approximately 3,000 square meters. The lease for this facility expires in June 2029, and we will have the ability to terminate the lease either in June 2025 or
June 2028. We believe our current leased space is sufficient to meet our current needs in Europe.

In  February  2016,  we  opened  our  U.S.  office  in  Cambridge,  Massachusetts.  We  currently  lease  6,289  square  feet  of  office  space  in  Cambridge,
Massachusetts  under  a  lease  that  expires  in  June  2029.  In  2018,  we  entered  into  a  lease  for  3,000  square  meters  of  manufacturing  and  office  space  in
Princeton, New Jersey, under a lease that expires in June 2029. Our Princeton manufacturing facility in Princeton has been able to produce GMP-compliant
batches  since  the  fourth  quarter  of  2019.  Additionally,  our  Princeton  manufacturing  facility  was  designed  with  the  ability  to  scale  production  to  supply
eryaspase to meet our anticipated clinical trial needs, including for supply requirements for U.S. patients in the TRYbeCA-1 trial, and for our anticipated
initial commercial needs in the United States, if eryaspase receives approval. Following the opening of our Princeton manufacturing facility, we terminated
our agreement with the American Red Cross for the use of a manufacturing facility in Philadelphia, Pennsylvania in January 2020.

73

We believe our production facilities will be sufficient to supply eryaspase for our ongoing Phase 2 and Phase 3 clinical trials and to meet our anticipated
initial commercial needs for eryaspase in Europe and United States, if approved.

Item4.A.Unresolved Staff Comments.

Not applicable.

Item 5. Operating and Financial Review and Prospects.

You  should  read  the  following  discussion  of  our  operating  and  financial  review  and  prospects  in  conjunction  with  our  audited  consolidated  financial
statements  and  the  related  notes  thereto  included  elsewhere  in  this  Annual  Report.  In  addition  to  historical  information,  the  following  discussion  and
analysis contains forward-looking statements that reflect our plans, estimates and beliefs. Our actual results and the timing of events could differ materially
from those anticipated in the forward-looking statements. Factors that could cause or contribute to these differences include those discussed below and
elsewhere in this Annual Report, particularly in sections titled “Risk Factors” and “Special Note Regarding Forward-Looking Statements.”

Overview

We  are  a  clinical-stage  biopharmaceutical  company  developing  innovative  therapies  for  severe  forms  of  cancer  and  orphan  diseases.  Leveraging  our
proprietary ERYCAPS platform, which uses a novel technology to encapsulate therapeutic drug substances inside erythrocytes, or red blood cells, or RBC.
We are developing a pipeline of product candidates for patients with high unmet medical needs. Our lead product candidate eryaspase, which we also refer
to  as  GRASPA,  targets  the  metabolism  of  cancer  cells  by  depriving  the  cells  of  asparagine,  an  amino  acid  necessary  for  their  survival  and  critical  in
maintaining  the  cells’  rapid  growth  rate.  We  are  currently  developing  eryaspase  for  the  treatment  of  severe  tumors,  including  pancreatic  cancer,  acute
lymphoblastic leukemia, or ALL, and triple negative breast cancer, or TNBC. We are also exploring the use of our ERYCAPS platform for developing
cancer immunotherapies and enzyme therapies.

Since  our  inception,  we  have  devoted  substantially  all  of  our  financial  resources  to  research  and  development  efforts,  including  conducting  preclinical
studies and clinical trials of our product candidates, providing general and administrative support for our operations and protecting our intellectual property.

As of December 31, 2020, we had cash and cash equivalents amounted of €44.4 million ($54.4 million). Historically, we have financed our operations and
growth through private and public offerings of our equity securities, convertible notes, loans, public assistance programs in support of innovation, such as
the conditional advances and subsidies from Bpifrance, a French public investment bank and from research tax credits. In May 2013, we completed the
initial public offering of our ordinary shares on Euronext Paris, from which we raised €17.7 million in gross proceeds. In November 2017, we completed a
global offering for gross proceeds of $143.7 million, or €123.6 million. The global offering consisted of a U.S. initial public offering of 5,389,021 ADS,
each representing one ordinary share, and a concurrent private placement in Europe and other countries outside of the United States and Canada of 791,116
ordinary shares. Our net proceeds from the global offering were approximately €112.1 million ($130.4 million).

Since our inception in 2004, we have incurred significant operating losses. Our net loss was €38.2 million, €62.7 million and €73.3 million for the years
ended December 31, 2018, 2019 and 2020, respectively. We had a consolidated shareholders' equity of €26.5 million as of December 31, 2020, and we
expect to incur significant expenses and substantial operating losses over the next several years as we continue our research and development efforts and
advance our clinical development programs in Europe and the United States. Although it is difficult to predict future liquidity requirements, we believe that
our existing cash and cash equivalents as of the date of this Annual Report will be sufficient to fund our operations until the fourth quarter 2021. If we take
into account potential proceeds from the OCABSA Agreement, then we believe we could fund our operations until the first quarter 2022. Refer to "Item
3.D.1 Risks Related to our Financial Position and Capital Needs for further details.

Our net losses may fluctuate significantly from quarter to quarter and year to year, depending on the timing of our clinical trials, the receipt of milestone
payments,  if  any,  and  our  expenditures  on  other  research  and  development  activities.  We  anticipate  that  our  expenses  will  increase  substantially  in
connection with our ongoing activities, as we:

•

•

•

•

conduct our ongoing and planned clinical trials of eryaspase in Europe and in the United States;

seek regulatory approvals for any product candidates that successfully complete clinical trials;

scale-up our manufacturing capabilities to support the launch of additional clinical studies and the commercialization of our product candidates,
if approved;

establish a sales and marketing infrastructure for the commercialization of our product candidates, if approved;

• maintain, expand and protect our intellectual property portfolio;

74

•

•

•

•

continue the research and development of our other product candidates, including planned and future clinical trials;

seek to discover and develop additional product candidates;

seek to attract and retain new and existing skilled personnel; and

create additional infrastructure to support our operations as a public company listed in the United States.

Until such time that we can generate substantial revenue from product sales, we expect to finance these expenses and our operating activities through a
combination  of  equity  offerings,  debt  financings,  government  or  other  third-party  funding,  marketing  and  distribution  arrangements  and  other
collaborations,  strategic  alliances  and  licensing  arrangements.  However,  we  may  be  unable  to  raise  additional  funds  or  enter  into  other  funding
arrangements when needed on favorable terms, or at all, which would have a negative impact on our financial condition and could force us to delay, limit,
reduce or terminate our development programs or commercialization efforts or grant rights to third parties to develop or market product candidates that we
would otherwise prefer to develop and market ourselves. Moreover, no assurance can be given at this time as to whether we will be able to achieve these
financing objectives. Our ability to successfully transition to profitability will be dependent upon achieving a level of revenues adequate to support our cost
structure. We cannot assure you that we will ever be profitable or generate positive cash flow from operating activities.

The consolidated financial statements as of and for the years ended December 31, 2018, 2019 and 2020 included in this Annual Report have been prepared
in accordance with IFRS as issued by the IASB with no difference with the statutory consolidated financial statements and were approved and authorized
for issuance by our board of directors on March 5, 2021. Due to the listing of our ordinary shares on Euronext Paris and in accordance with the European
Union’s regulation No. 1606/2002 of July 19, 2002 as amended, our consolidated financial statements have also been prepared in accordance with IFRS as
adopted by the European Union, or EU.

Financial Operations Overview

Operating Income

To date, we have not generated any revenue from the sale of products. Our ability to generate product revenue and to become profitable will depend upon
our  ability  to  successfully  develop  and  commercialize  eryaspase  and  our  other  product  candidates.  Because  of  the  numerous  risks  and  uncertainties
associated with product development and regulatory approval, we are unable to predict the amount or timing of product revenue. Our operating income
consists of other income.  

Research Tax Credit

The research tax credit (crédit d’impôt recherche), or CIR, is granted to companies by the French tax authorities in order to encourage them to conduct
technical and scientific research. Companies demonstrating that they have expenses that meet the required criteria, including research expenses located in
France or, since January 1, 2005, within the European Union or in another state that is a party to the agreement in the European Economic Area that has
concluded  a  tax  treaty  with  France  that  contains  an  administrative  assistance  clause,  receive  a  tax  credit  which  can  be  used  against  the  payment  of  the
corporate tax due the fiscal year in which the expenses were incurred and during the next three fiscal years, or, as applicable, can be reimbursed for the
excess portion. The expenses taken into account for the calculation of the CIR only involve research and development expenses.

The main characteristics of the CIR are the following:

•

•

•

the CIR results in a cash inflow from the tax authorities paid directly to us as we are not subject to corporate income tax;

a company’s corporate income tax liability does not limit the amount of the CIR;

the CIR is not included in the determination of the corporate income tax.

As  a  result,  we  have  concluded  that  the  CIR  meets  the  definition  of  a  government  grant  as  defined  in  IAS  20  Accounting  for  Government  Grants  and
Disclosure  of  Government  Assistance. As  no  research  and  development  expenditure  is  capitalized  before  obtaining  a  marketing  authorization,  the  CIR
related to a research program is entirely recognized in "other income" in our statement of income (loss).

75

Subsidies

We have received financial assistance from Bpifrance and other governmental organizations in connection with the development of our product candidates.
Bpifrance’s mission is to provide assistance and support to emerging French enterprises to facilitate the development and commercialization of innovative
technologies.

Funds are recognized in "other income" in our statement of income (loss) for the fiscal year in which the financed expenses were recorded.

Revenue from Licenses or Other Contracts

Since January 1, 2018, agreements are analyzed and recorded in accordance with IFRS 15 Revenue from contracts with customers, or IFRS 15.

Partnership with Orphan Europe for NOPHO clinical trial

Pursuant to the terms of our distribution agreement, Orphan Europe agreed to finance the NOPHO trial for a total amount of €600 thousand. We recognized
revenues related to this partnership under “other income” in our statement of income (loss).

License agreement with SQZ Biotechnologies

Pursuant to the terms of our license agreement with SQZ Biotechnologies, we granted to SQZ Biotechnologies an exclusive worldwide license to develop
antigen  specific  immune  modulating  therapies  employing  red  blood  cell-based  approaches.  In  accordance  with  IFRS  15,  this  agreement  grants  to  SQZ
Biotechnologies a right to use the underlying intellectual property. Consequently, the income is recognized when SQZ Biotechnologies can begin to use the
licensed intellectual property.

Operating Expenses

Our operating expenses consist primarily of research and development expenses and general and administrative expenses.

Research and development expenses

We engage in substantial research and development efforts to develop innovative pharmaceutical product candidates.

Research and development expenses consist primarily of:

•

•

•

•

services, subcontracting and consulting fees, that primarily include the cost of third-party contractors such as contract research organizations, or
CROs, who conduct our clinical trials;

personnel  costs,  including  salaries,  related  benefits  and  share-based  compensation,  for  our  employees  engaged  in  scientific  research  and
development functions;

purchases of raw materials, especially asparaginase, and transportation costs associated;

depreciation and amortization expenses.

Since  our  inception,  our  research  and  development  efforts  have  been  related  primarily  to  our  completed  and  ongoing  clinical  trials  of  eryaspase  for  the
treatment of pancreatic cancer, ALL and AML. In June 2018, we ceased the development program for eryaspase in ALL and are focusing our development
efforts on eryaspase for the treatment of selected solid tumors. The resources that became available as a result of this strategic decision were allocated to
what  we  estimate  is  a  significantly  larger  unmet  medical  need  and  market  opportunity  for  the  potential  treatment  of  solid  tumors,  including  pancreatic
cancer and TNBC. This decision did not have a significant impact on our consolidated financial statements.

Our direct research and development expenses consist principally of external costs, such as fees paid to consultants, laboratories and CROs in connection
with our clinical trials, and purchases of raw materials which we allocate to our specific research programs.

Research and development activities are central to our business model. Product candidates in later stages of clinical development generally have higher
development costs than those in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials. We
expect  that  our  research  and  development  expenses  will  continue  to  increase  in  the  foreseeable  future  as  we  initiate  clinical  trials  for  certain  product
candidates and pursue later stages of clinical development of other product candidates, and will seek regulatory approvals for our product candidates, if
clinical trial are successfully completed.

We cannot determine with certainty the duration or costs of the current or future clinical trials of our product candidates or if, when, or to what extent we
will generate revenue from the commercialization and sale of any of our product candidates that obtain regulatory

76

approval. We may never succeed in achieving regulatory approval for any of our product candidates. The duration, costs and timing of clinical trials and
development of our product candidates will depend on a variety of factors, including:

•

•

•

•

•

the  scope,  rate  of  progress  and  expense  of  our  ongoing,  as  well  as  any  additional,  non-clinical  studies,  clinical  trials  and  other  research  and
development activities;

clinical trial and early-stage results;

the terms and timing of regulatory approvals;

the expense of filing, prosecuting, defending and enforcing patent claims and other intellectual property rights; and

the ability to market, commercialize and achieve market acceptance for eryaspase or any other product candidate that we may develop in the
future.

A change in the outcome of any of these variables with respect to the development of product candidates that we are developing could mean a significant
change  in  the  costs  and  timing  associated  with  the  development  of  such  product  candidates.  For  example,  if  the  FDA,  the  EMA  or  other  regulatory
authority were to require us to conduct non-clinical and clinical studies beyond those which we currently anticipate will be required for the completion of
clinical  development,  or  if  we  experience  significant  delays  in  enrollment  in  any  clinical  trials,  we  could  be  required  to  spend  significant  additional
financial resources and time on the completion of clinical development.

General and Administrative

General and administrative expenses consists primarily of :

•

•

services, subcontracting and consulting fees, mainly related to legal services, accounting and audit, IT, insurance costs and overhead costs;

personnel  costs  including  share-based  compensation  for  personnel  other  than  employees  engaged  in  scientific  research  and  development
functions;

We anticipate that our general and administrative expenses will increase in the future as we grow our support functions for the expected increase in our
research and development activities and the potential commercialization of our product candidates.

Financial Income (Loss)

Financial income (loss) relates primarily to:

•

•

•

•

expenses  and  income  on  convertibles  notes  recognized  in  accordance  with  IFRS  9  (amortized  cost  and  change  in  fair  value  of  embedded
derivatives),

interest expenses incurred on financial liabilities and lease liabilities,

income received from cash and cash equivalents and

gains and losses on exchange rate variations on financial and investing operation.

Income tax

We do not recognize current tax expense. Deferred tax assets resulting from temporary differences or tax losses carried forward are limited to the deferred
tax liabilities with the same maturity, except where their allocation on future taxable income is probable.

Critical Accounting Policies and Estimates

Some of the accounting methods and policies used in preparing our financial statements under IFRS are based on complex and subjective assessments by
our management or on estimates based on past experience and assumptions deemed realistic and reasonable based on the circumstances concerned. The
actual  value  of  our  assets,  liabilities  and  shareholders’  equity  and  of  our  losses  could  differ  from  the  value  derived  from  these  estimates  if  conditions
changed and these changes had an impact on the assumptions adopted. We believe that the most significant management judgments and assumptions in the
preparation of our financial statements are described below. For further details, see Notes to our consolidated financial statements.

Measurement of Share-based payments

We account for share-based compensation in accordance with IFRS 2 Share-based payment, or IFRS 2. Determining the fair value of share-based awards at
the grant date requires judgment. Fair value is estimated using the Black & Scholes valuation model (for BSA, SO and BSPCE valuation) and Monte-Carlo
valuation model (for AGA valuation). The determination of the fair value of warrants

77

using an option-pricing model is affected by assumptions regarding a number of complex and subjective variables. These variables include the expected
term  of  the  awards,  expected  volatility,  risk-free  interest  rates  and  expected  dividends.  If  any  of  the  assumptions  change  significantly,  share-based
compensation for future awards may differ materially compared with the awards granted previously.

Measurement of the convertible notes' agreement

Our convertible notes' agreement is measured in accordance with IFRS 9 Financial instruments, or IFRS 9. The determination of the accounting treatment
of this agreement requires judgment. We determined that this agreement includes: (i) a put and call option linked to the mutual commitment between us and
the investor qualified as derivative at the signing date of this agreement, (ii) a conversion option and warrants qualified as derivative at the issuance of a
tranche.  Fair  value  is  estimated  using  the  Tsiveriotis  Fernandes  valuation  model  for  the  put  and  call  option,  the  Monte-Carlo  valuation  model  for  the
conversion  option  and  the  Black  &  Scholes  valuation  model  for  warrants.  The  determination  of  the  fair  value  of  the  different  components  using  these
models is affected by assumptions regarding a number of complex and subjective variables. These variables include the expected term, expected volatility,
risk-free  interest  rates,  expected  dividends  for  the  three  valuation  models  and  credit  spread  for  the  Tsiveriotis  Fernandes  valuation  model.  If  any  of  the
assumptions change significantly, fair value of each components of this agreement could differ materially from their valuation.

Estimate of the hospital costs

The completion of the hospital costs related to clinical trials sponsored by the Company is measured based on two allocation keys : (i) site activation for
fixed  establishment  costs  which  are  recognized  in  full  when  sites  are  activated  and  (ii)  patient  randomization  for  variable  patient  costs  (including
chemotherapy  costs)  which  are  spread  over  the  estimated  time  of  treatment  of  the  patient  as  planned  in  the  clinical  protocol.  These  allocation  keys  are
applied to the estimated expenses of the clinical trial. The excess of estimated costs incurred over invoices received is recorded in "Vendors - accruals".

5.A.Operating Results

5.A.1. Operating Income

We  generated  operating  income  of  €4,447  thousand  in  2018,  €5,283  thousand  in  2019  and  €3,718  thousand  in  2020.  The  components  of  our  operating
income are set forth in the table below.

(in thousands of €)

Revenues

Other income

Research Tax Credit

Subsidies

Revenues from licenses or other contracts

Operating income

FOR THE YEAR ENDED DECEMBER 31,

2018

2019

2020

— 

4,375 

— 

72 

4,447

— 

3,915 

294 

1,074 

5,283 

— 

3,430 

42 

246 

3,718 

The  CIR  recognized  for  each  of  the  years  2018  and  2019  ended  were  received  in  cash  in  2019  and  2020,  respectively.  We  expect  to  receive  the  CIR
recognized for the 2020 year in 2021.

Revenues from licenses or other contracts in 2019 are primarily associated with our license agreement with SQZ Biotechnologies.

Research and Development Expenses

Our research and development expenses amounted to €33,468 thousand in 2018, €52,193 thousand in 2019 (an increase of 56% compared to 2018) and
€57,580 thousand in 2020 (an increase of 10% compared to 2019).

Our research and development expenses are broken down in the table below.

78

(in thousands of €)

FOR THE YEAR ENDED DECEMBER 31,

% CHANGE

2018

2019

2020

2018/2019

2019/2020

ERYASPASE

ERYMETHIONASE

IMMUNOTHERAPIES

ENZYME THERAPIES

Direct research and development expenses

Consumables

Rental and maintenance

Services, subcontracting and consulting fees
(1)

Personnel expenses 

Depreciation and amortization expense

Other

Indirect research and development expenses

Research and development expenses

 (2)

12,883 

2,472 

389 

256 

16,000 

938 

793 

4,532 

10,914 

233 

58 

17,468 

33,468 

22,740 

2,027 

275 

7 

25,049 

2,917 

1,292 

4,413 

14,967 

3,508 

47 

27,144 

52,193 

28,469 

41 

2 

0 

28,512 

3,695 

1,275 

4,179 

15,629 

4,232 

58 

29,068 

57,580 

77 %

(18 %)

(29 %)

(97 %)

57 %

211 %

63 %

(3 %)

37 %

1,406 %

(19 %)

55 %

56 %

25 %

(98 %)

(99 %)

(100 %)

14 %

27 %

(1 %)

(5 %)

4 %

21 %

23 %

7 %

10 %

(1)

(2)

Includes €1,158 thousand, €688 thousand and €531 thousand related to share-based compensation expense for 2018, 2019 and 2020, respectively.
€23,966 thousand, €44,398 thousand and €53,734 thousand of this amount are related to clinical trials for 2018, 2019 and 2020, respectively.

The increase in research and development expenses for periods presented is mainly due to:

• An increase in costs related to eryaspase of €9,857 thousand in 2019 and €5,729 thousand in 2020 because of the initiation of our TRYbeCA-1

trial, which began in September 2018.

• A decrease in costs related to erymethionase of €445 thousand in 2019 and €1,986 thousand in 2020 due to our decision to focus our financial

resources on other strategic priorities.

• An increase in personnel expenses of €4,053 thousand in 2019 and €662 thousand in 2020 , mainly related to an increase in headcount of our
research  and  development  workforce,  especially  in  technical  operations,  in  connection  with  our  ongoing  clinical  trials  and  particularly,  the
launch  of  the  TRYbeCA-1  trial  in  September  2018.  The  average  number  of  full-time  employees  allocated  to  our  research  and  development
workforce was 99 in 2018, 156 in 2019 and 166 in 2020.

• An increase in depreciation and amortization expenses of €3,275 thousand in 2019 and €724 thousand in 2020, mainly related to:

◦

◦

the recognition of an impairment of €1,036 thousand in 2019 on a production process recognized in intangible asset; and

the commissioning of our manufacturing facility in Princeton, New Jersey in the second half of 2019.

79

General and Administrative Expenses

Our general and administrative expenses amounted to €14,600 thousand in 2018, €17,164 thousand in 2019 (an increase of 18% compared to 2018) and
€14,970 thousand in 2020 (a decrease of 13% compared to 2019).

Our general and administrative expenses are broken down as follows:

(in thousands of €)

FOR THE YEAR ENDED DECEMBER 31,

% CHANGE

2018

2019

2020

2018/2019

2019/2020

Consumables

Rental and maintenance

Services, subcontracting, and consulting fees

Personnel expenses 

(1)

Depreciation and amortization expense

Other 

(2)

33 

1,584 

5,409 

5,925 

529 

1,120 

527 

1,117 

7,964 

6,331 

751 

474 

224 

1,070 

5,962 

6,573 

686 

455 

General and administrative expenses

14,600 

17,164 

14,970 

1,497 %

(29 %)

47 %

7 %

42 %

(58 %)

18 %

(57 %)

(4 %)

(25 %)

4 %

(9 %)

(4 %)

(13 %)

(1)

(2)

Includes €849 thousand, €522 thousand and €532 thousand related to share-based compensation expense for 2018, 2019 and 2020, respectively.
Includes €442 thousand, €159 thousand and €116 thousand related to share-based compensation expense (warrants allocated to directors and to the
chairman of the board) for 2018, 2019 and 2020, respectively.

Our general and administrative expenses are mainly composed of:

•

•

Services, subcontracting and consulting fees amounting to €5,409 thousand in 2018, €7,964 thousand in 2019 and €5,962 thousand in 2020. The
significance  of  these  expenses  in  2019  compared  to  2018  and  2020  was  mainly  due  to  the  establishment  of  our  Princeton,  New  Jersey
manufacturing facility; and

Personnel expenses amounting to €5,925 thousand in 2018, €6,331 thousand in 2019 and €6,573 thousand in 2020. The average number of full-
time employees allocated to our general and administrative workforce was 39 in 2018, 41 in 2019 and 41 in 2020.

5.A.2

Financial Income (Loss)

Our financial income (loss) amounted to €5,399 thousand in 2018, €1,414 thousand in 2019 and €(4,465) thousand in 2020. It is broken down as follows:

(in thousands of €)

Financial income

Financial expenses

Financial income (loss)

Our financial income related mainly to:

FOR THE YEAR ENDED DECEMBER 31,

2018

2019

2020

5,427 

(28)

5,399 

2,947 

(1,533)

1,414 

889 

(5,354)

(4,465)

•

Foreign currency gains and losses of €3,993 thousand in 2018, €781 thousand in 2019 and €(3,028) thousand in 2020. The decrease is due to a
significant fall in the U.S. dollar against the euro over the periods presented;

• A gain on foreign exchange swaps of €1,254 thousand in 2018, €1,124 thousand in 2019 and €61 thousand in 2020; and

• A  net  expense  of  €1,032  thousand  in  2020  due  to  the  recognition  of  the  convertible  notes  agreement  signed  with  European  High  Growth

Opportunities Securitization Fund in accordance with IFRS 9 (no corresponding expense during the comparative periods).

80

5.B.Liquidity and Capital Resources

5.B.1.

Sources of liquidity

Equity

We have financed our operations since our inception through several rounds of public and private financings that could be summarized as follows:

Until 2012
2013
2014
2015
2016
2017
2017
2020-2021

2021

Successive funding rounds : issuance of ordinary and preference shares
Initial public offering on Euronext
Follow-on offering
Private placement
Private placement
Follow-on offering
Global offering : U.S. initial public offering and concurrent private placement in Europe
Conversion of convertible notes
Shares sold under the at-the-market (“ATM”) program

Gross proceeds (in
millions of euros)

17.7
17.7
30.0
25.4
9.9
70.5
123.6
15.0

6.6
316.4

In September 2020, we entered into a sales agreement with Cowen with respect to an ATM offering program pursuant to which we may issue and sell, from
time to time at our sole discretion, ordinary shares in the form of ADSs to eligible investors at market prices, with aggregate gross sales proceeds of up to
$30 million, subject to the regulatory limit of 20% dilution (this threshold is calculated based on the total number of shares listed on Euronext without
prospectus during the twelve months before the issuance).

In February 2021, we sold shares under this ATM offering program resulting in gross proceeds of $8.0 million, or €6.6 million, resulting in net proceeds of
$7.8 million or €6.4 million. As of the date of this Annual Report, $22.0 million remained available for future issuance until September 2023, subject to the
regulatory limit of 20% dilution.

Non-refundable grants and conditional advances

Since our inception, we have received non-refundable subsidies from Bpifrance in the amount of €2.4 million in connection with our preclinical research
programs.

We have also received €5.0 million in three conditional advances from Bpifrance. To date, TEDAC is the only ongoing program funded by conditional
advances. No repayment were made during the years presented.

The  TEDAC  research  program,  which  is  funded  by  non-refundable  subsidies  and  conditional  advances  from  Bpifrance,  will  be  funded  according  to  a
specified schedule set forth in the contract, subject to completion of milestones. As the program advances, we will provide Bpifrance with interim progress
reports and a final report when the funded project ends. Based on these reports, we are entitled to conditional advances and non-refundable subsidies, each
award being made to help fund a specific development milestone.

•

•

The total amount of the subsidies to be granted is €2,058 thousand, of which we have received an aggregate amount of €1,749 thousand through
December 31, 2020.

The total amount of conditional advances to be granted is €4,895 thousand, of which we have received an aggregate amount of €4,161 thousand
through December 31, 2020. We will be obligated to make repayments based on the achievement of specified sales levels. Second, we will also
have to pay royalties based on our sales.

81

Research Tax Credit

The  Company  benefits  from  the  provisions  in  Articles  244  quater B and 49 septies F  of  the  French  Tax  Code  related  to  the  Research  Tax  Credit.  The
cumulative amount of research tax credit recognized for the years ended December 31, 2018, 2019 and 2020 was €11.7 million, of which €8.3 million are
received as of today. We expect to receive the remaining balance in 2021.

Loans

•

Convertible notes agreement ("OCABSA")

Refer to "Item 10.C. Material Contracts" for further information regarding our material contracts.

•

Bank loans

In  2017,  we  subscribed  an  unsecured  bank  loan  with  Société  Générale  subscribed  for  a  total  amount  of  €1.9  million  with  a  0.4%  interest  rate  and  36
monthly repayment terms. This loan is fully repaid as of December 31, 2020.

In November 2020, we received two loans of €5.0 million each, in the form of State-Guaranteed Loan (Prêt Garanti par l’Etat, or PGE in France), with
Bpifrance  and  Société  Générale  in  the  context  of  the  COVID-19  pandemic.  The  loans  bear  interest  at  fixed  rates  of  1.67%  and  0.25%  per  annum
respectively, with an initial term of one year and a five -year deferral option and the French government will guarantee 90% of the amount due.

5.B.2. Cash Flows

The table below summarizes our sources and uses of cash for the years ended December 31, 2018, 2019 and 2020.

(in thousands of €)
Net cash flows used in operating activities

Net cash flows used in investing activities

Net cash flows from (used in) financing activities

Exchange rate effect on cash in foreign currency

Net increase (decrease) in cash and cash equivalents

Cash flows used in operating activities

(in thousands of €)
Operating cash flow before change in working capital

Change in working capital

Net cash flow used in operating activities

FOR THE YEAR ENDED DECEMBER 31,

2018

2019

2020

(47,857)

(6,450)

(818)

3,981 

(51,144)

(43,310)

(19,838)

40 

1,910 

(61,198)

(51,720)

(1,475)

25,449 

(981)

(28,727)

FOR THE YEAR ENDED DECEMBER 31,

2018

2019

2020

(38,864)

(8,993)

(47,857)

(57,040)

13,730 

(43,310)

(62,522)

10,802 

(51,720)

Our net cash flows used in operating activities were €47,857 thousand, €43,310 thousand and €51,720 thousand for the years ended December 31, 2018,
2019 and 2020, respectively. Our operating cash flows before change in working capital increased over the years presented due to the launch of TRYbeCA-
1 trial in September 2018. In 2018, the negative impact of the working capital was mainly due to significant advances payments made to suppliers as part
of  the  launch  of  our  TRYbeCA-1  trial.  In  2019  and  2020,  the  positive  impact  of  the  working  capital  was  mainly  linked  to  accrued  hospital  costs;
corresponding to the time delay between services rendered and the receipt of invoices.

82

Cash flows used in investing activities

We do not capitalize clinical research and development costs until we obtain marketing authorization for a product candidate.

(in thousands of €)
Acquisition of property, plant and equipment, net of disposal

Acquisition of intangible assets

Increase in non-current & current financial assets, net of decrease

Net cash flow used in investing activities

FOR THE YEAR ENDED DECEMBER 31,

2018

2019

2020

(5,635)
(3)

(812)

(6,450)

(20,117)
(16)

295

(19,838)

(1,056)
(2)

(417)

(1,475)

Our net cash flows used in investing activities were €6,450 thousand, €19,838 thousand and €1,475 thousand in the years ended December 31, 2018, 2019
and 2020, respectively.

The largest portion of our capital expenditures for the years presented related to the establishment of our manufacturing facility in Princeton, New Jersey,
United States (€3.3 million in 2018, €18.5 million in 2019 and €0.8 million in 2020). These costs were capitalized in the amount of €11.9 million in 2018
and €10.6 million in 2019. This facility began the production of GMP-compliant clinical batches in 2019.

We also used cash to increase our manufacturing capacity in Lyon using €1.2 million in 2018 and €0.7 million in 2019.

The increase in financial assets related mainly to deposits paid on commercial leases and advance payments to suppliers.

Cash flows from (used in) financing activities

(in thousands of €)
Capital increases, net of transaction costs

Proceeds from borrowings, net of repayment

Repayment of lease liability, net of allowance received

Interests received (paid)

Other

Net cash flow from (used in) financing activities

FOR THE YEAR ENDED DECEMBER 31,

2018

2019

2020

— 
(818)

— 

— 

— 

(818)

— 
(738)

888 

(195)

85 

40 

118 
27,073 

(1,428)

(326)

12 

25,449 

Our net cash flows from (used in) financing activities were €(818) thousand in 2018, €40 thousand in 2019 and €25,449 thousand in 2020.

In 2020, proceeds from borrowing were primarily the result of the issuance of five tranches of convertible notes, in a total amount of €15.0 million (refer to
section Item 10, section C. Material Contracts) and the collection of two loans in the form of State-Guaranteed Loan for €10.0 million.

Operating Capital Requirements

5.B.3.
We believe that our existing cash and cash equivalents at of the date of this Annual Report will be sufficient to fund our operations until the fourth quarter
2021. If we take into account potential proceeds from the OCABSA Agreement, then we believe we could fund our operations until the first quarter 2022.
We have based this estimate on assumptions that may prove to be wrong, and we could use our capital resources sooner than we currently expect. As a
result, we should continue, in the short to mid-term, to be financed through partnership agreements for the development and commercialization of our drug
candidates and through the issuance of new debt or equity instruments.

For  more  information  as  to  the  risks  associated  with  our  future  funding  needs,  see  the  "Item  3.D.1  Risks  Related  to  our  Financial  Position  and  Capital
Needs".

5.C.Research and Development

For a discussion of our research and development activities, see “Item 4.B—Business Overview” and “Item 5.A—Operating Results.”

5.D.Trend Information

For a discussion of trends, see “Item 5.A—Operating Results” and “Item 5.B—Liquidity and Capital Resources.”

83

5.E.Off-Balance Sheet Arrangements

During  the  periods  presented,  we  did  not  and  do  not  currently  have  any  off-balance  sheet  arrangements  as  defined  under  Securities  and  Exchange
Commission rules, such as relationships with other entities or financial partnerships, which are often referred to as structured finance or special purpose
entities, established for the purpose of facilitating financing transactions that are not required to be reflected on our balance sheet.

5.F. Tabular Disclosure of Contractual Obligations

The following table discloses aggregate information about our material contractual obligations and the periods in which payments were due as of December
31, 2020. Future events could cause actual payments and timing of payments to differ from the contractual cash flows set forth below.

(in thousands of €)

Convertible notes

Conditional advances

Bank loans

Other financial liabilities

Lease liabilities

Trade and fixed assets payables

Total

Less than 1 year

1 to 3 years

3 to 5 years

More than 5
years

Total

2,400 

— 

98 

— 

1,607 

4,792 

8,897 

— 

— 

3,945 

35 

2,949 

— 

6,929 

— 

— 

3,984 

— 

2,202 

— 

6,186 

— 

4,421 

2,071 

— 

4,046 

— 

10,538 

2,400 

4,421 

10,098 

35 

10,804 

4,792 

32,550 

The amounts of contractual obligations set forth in the table above are associated with contracts that are enforceable and legally binding and that specify all
significant terms, fixed or minimum services to be used, fixed, minimum or variable price provisions, and the approximate timing of the actions under the
contracts. The table does not include obligations under agreements that we can cancel without a significant penalty.

5.G. Safe Harbor.

This Annual Report contains forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act
and as defined in the Private Securities Litigation Reform Act of 1995. See “Special Note Regarding Forward-Looking Statements.”

84

Item6. Directors, Senior Management and Employees.

6.A.Directors and Senior Management.

The following table sets forth information concerning our executive officers and directors as of the date of this Annual Report.

NAME

Executive Officers

Gil Beyen

Eric Soyer

Jean-Sébastien Cleiftie 

(1)

Iman El-Hariry, M.D., Ph.D.

 (1)

Jérôme Bailly, Pharm.D.

Stewart Craig 

(1)

Anne-Cécile Fumey

Brian Schwab

Françoise Horand

Non-Employee Directors
 (3)

Jean-Paul Kress, M.D.
 (2)(3)(4)

Sven Andréasson

Philippe Archinard, Ph.D. 
(5)

Luc Dochez, Pharm.D. 

(2)(3)(5)

Martine Ortin George, M.D.

 (5)

Melanie Rolli, M.D.

(5)

Hilde Windels 

(2)(6)

AGE

POSITION(S)

59

54

47

60

42

59

46
56

48

55

68

61

46

72

48

55

Chief Executive Officer and Director

Deputy General Manager, Chief Financial Officer and Chief Operating Officer

Chief Business Officer

Chief Medical Officer

Deputy General Manager, Operations Chief Quality Officer and Qualified Person

Chief Technical Officer

Human Resources Director
VP, Legal Affairs & General Counsel

MSc – Director of Research and Development Operations

Chairman of the Board

Director

Director

Director

Director

Director

Director

(1)

(2)

(3)

(4)

(5)

(6)

Employee of our wholly-owned U.S. subsidiary, ERYTECH Pharma, Inc.
Member of the audit committee.
Member of the remunerations and appointment committee.
As representative of Galenos SPRL, the legal entity that holds this board seat.
Member of the clinical strategy committee.
As representative of Hilde Windels BV, the legal entity that holds this board seat.

Executive Officers

Gil Beyen has served as our Chief Executive Officer since May 2013 and as a member of our board of directors since August 2013. Mr. Beyen served as
Chairman of our board of directors from August 2013 to June 2019. Prior to his appointment as Chief Executive Officer, he assisted our company in a
consulting role as of 2012 and also served as Chairman of our supervisory board from August 2012 until May 2013. Between 2000 and 2013, Mr. Beyen
was Chief Executive Officer and director of TiGenix, a company he co-founded. He previously served as the head of the Life Sciences division of Arthur
D.  Little,  an  international  management  consulting  firm,  in  Brussels.  Mr.  Beyen  received  an  M.S.  in  Bioengineering  from  the  University  of  Leuven
(Belgium) and an M.B.A. from the University of Chicago.

Eric Soyer has served as our Chief Financial Officer and Chief Operating Officer since September 2015 and as our Directeur Général Délégué, or Deputy
General Manager, since January 2019. Prior to his appointment as our Chief Financial Officer, he served for eight years as Chief Financial Officer of EDAP
TMS S.A., a French therapeutic ultrasound company. He also was Managing Director of the French affiliate of EDAP TMS from May 2012 to August
2015, and previously was EDAP TMS’s Executive Vice President of Finance, Human Resources and Administration from December 2006 to May 2012.
From 2005 to 2006, he served as Chief Financial Officer for Medica, a company operating nursing homes and post-care clinics throughout France and Italy.
From  1999  to  2005,  he  served  in  various  positions  of  increasing  responsibility  for  April  Group,  an  insurance  services  company.  He  has  international
experience as a controller and cost accountant for Michelin Group in France, the United States and Africa. Mr. Soyer graduated from

85

the  ESC  Clermont  School  of  Management  (France)  and  holds  an  M.B.A.  from  the  University  of  Kansas  and  an  Executive  M.B.A.  from  the  HEC  Paris
School of Management (France).

Jean-Sébastien Cleiftie has served as our Chief Business Officer since October 2016. Prior to joining us, he served as Associate Vice-President, Global
Business Development & Licensing at Sanofi in Paris, France from October 2010 to August 2016. Prior to joining Sanofi, Mr. Cleiftie served as a principal
at Innoven Partners, a European venture capital firm focused on investments in the healthcare and information technology industries in Europe and the
United States, from February 2004 to October 2010. From 1997 to 1999, Mr. Cleiftie was a research scientist with Aventis (now Sanofi) in the fields of
immunotherapy and gene therapy for cancer. Mr. Cleiftie holds an M.S. in Biological & Medical Sciences and an M.S. in Immunology from the University
of Paris V, and received his M.B.A from Cornell University.

Iman El-Hariry, M.D., Ph.D. has served as our Chief Medical Officer and employee of our wholly-owned U.S. subsidiary, ERYTECH Pharma, Inc., since
June 2015. Prior to her appointment as Chief Medical Officer, she served as President of Azure Oncology Consulting from July 2014 to June 2015 and also
assisted us in a consulting role from November 2014 to June 2015. Dr. El-Hariry served as Vice President of Clinical Research at Synta Pharmaceuticals
from November 2010 to July 2014 and as Global Head of Oncology at Astellas Pharma, Inc. from June 2009 to July 2010. From 2001 to 2009, she served
as Director of Clinical Development, Oncology at Glaxo Smith Kline. Dr. El-Hariry is a licensed oncologist with an M.D. from Alexandria Medical School
(Egypt) and a Ph.D. in Cancer Research from Imperial College of Science and Medicine (United Kingdom).

Jérôme  Bailly,  Pharm.D.  has  served  as  our  Qualified  Person  since  December  2011,  as  our  Director  of  Pharmaceutical  Operations  since  2007  until
November 2020 when he was appointed Chief Quality Officer and as a Vice President and Directeur Général Délégué, or Deputy General Manager, since
2017.  Prior  to  2007,  he  was  the  Director  of  QA/Production  at  Skyepharma  and  Laboratoire  Aguettant.  Dr.  Bailly  holds  a  Pharm.D.  and  a  degree  in
Chemical Engineering, specializing in Biopharmaceutical Engineering and Cellular Production from École Polytechnique de Montréal (Canada).

Dr. Stewart Craig, Ph.D has served as our Chief Technical Officer since November 2020. For the past 25 years, Dr. Craig has held executive level positions
designing,  implementing  and  operating  the  CMC  and  GMP  manufacturing  infrastructure  for  various  pioneering  cell  and  gene  therapy  companies
worldwide, including as Chief Manufacturing Officer of Orchard Therapeutics from 2016 to 2019, SVP Technical Operations of Sangamo from 2014 to
2016, EVP Manufacturing & Regulatory at Stemcells Inc.from 2008 to 2014, Chief Technology Officer at PCT Cell Therapy Services from 2005 to 2008
and Chief Operating Officer at Xcyte Therapies from 1999 to 2005. Dr. Stewart also has extensive experience in the successful management of regulatory
affairs for cell and gene therapy submissions in the United States, Canada and Europe. Dr. Craig holds a B.Sc. in Biochemistry and a Ph.D. in Physical
Biochemistry from Newcastle University (U.K.).

Anne-Cécile Fumey was appointed as our Human Resources Director in February 2016. Prior to joining our company, Mrs. Fumey served within several
high-growth  blue-chip  companies.  She  was  International  HR  Director  with  Clasquin  Group  and  Senior  HR  Manager  at  National  Bank  of  Canada  in
Montréal. Anne-Cécile Fumey started her career with BD where she was responsible for Human Resources management at the European headquarters, then
within  the  Pharmaceutical  Systems  business  unit,  before  being  appointed  Compensation  and  Benefits  Manager  France.  Mrs.  Fumey  graduated  from  the
Grenoble Institute of Political Studies (IEP) and has a postgraduate degree (DESS) in Human Resources Management from the Grenoble Graduate School
of Management (IAE).

Brian Schwab joined our company in January 2020 as VP, Legal Affairs & General Counsel and has over 25 years of French and US in-house and law firm
experience. Prior to his appointment, he served as General Counsel to two Global Business Units at Solvay in Lyon from July 2012 to December 2019 and
as Chief Licensing Officer and General Counsel at Scynexis, in North Carolina from March 2003 to June 2012. He previously served as Deputy General
Counsel at Aventis CropScience from January 1999 to February 2003 and as Senior Legal Counsel at Rhone-Poulenc from May 1996 to December 1998.
Mr.  Schwab  also  worked  as  an  attorney  for  Freshfields  Bruckhaus  Deringer  in  Paris  from  July  1993  to  May  1996  and  for  Cooley  LLP  in  Palo  Alto,
California from October 1989 to September 1992. Mr. Schwab received a B.A. from Cornell University, a law degree from the University of California –
Los Angeles and a LLM degree from the University of Maastricht in the Netherlands.

Françoise  Horand  joined  our  company  in  2008.  With  10  years’  experience  in  toxicology  and  preclinical  drug  regulations  obtained  at  MDS  Pharma
Services (now Charles River Laboratories), she was involved in putting together the R&D team when it started and launching the laboratory. She currently
heads  up  the  teams  in  charge  of  research  projects  as  well  as  the  research  laboratory.  Mrs.Horand  holds  a  Master’s  degree  in  Biochemistry  from  the
University of Lyon, and is also a graduate of the Ecole Pratique des Hautes Etudes in immunology.

Non-Employee Directors

Jean-Paul  Kress,  M.D.  has  served  as  Chairman  of  our  board  of  directors  since  June  2019.  Dr.  Kress  has  served  as  the  Chief  Executive  Officer  of
MorphoSys AG since September 2019. He previously served as President and Chief Executive Officer of Syntimmune Inc.

86

from January 2018 to November 2018. Prior to joining Syntimmune, Dr. Kress served as Executive Vice President, President of International and Head of
Global  Therapeutic  Operations  at  Biogen  Inc  from  June  2017  to  January  2018.  From  September  2015  to  June  2017,  Dr.  Kress  served  as  Senior  Vice
President, Head of North America at Sanofi Genzyme. From July 2011 to September 2015, Dr. Kress served as President and Chief Executive Officer of
Sanofi  Pasteur  MSD,  a  European  vaccine  company.  Prior  to  then,  Dr.  Kress  worked  at  Gilead,  Abbvie  and  Eli  Lilly  in  senior  commercial  and  business
development roles in the United States and in Europe. Dr. Kress holds an M.D. degree from Faculté Necker-Enfants Malades in Paris, and graduate and
post-graduate degrees in pharmacology and immunology from École Normale Supérieure in Paris.

Sven  Andréasson  (acting  as  legal  representative  of  Galenos  Sprl)  has  served  as  a  member  of  our  board  of  directors  since  2013  and  has  served  as
representative of Galenos SPRL, the legal entity that holds this board seat, since 2014. He also served as a member of our supervisory board from 2009 to
May  2013.  Mr. Andréasson  has  served  as  Senior  Vice  President,  Corporate  Development  for  Novavax,  Inc.  (United  States),  a  pharmaceutical  company,
since June 2014. From 2012 to 2013, he served as Chief Executive Officer of Isconova AB (Uppsala, Sweden), a leading international vaccine adjuvant
company acquired by Novavax in 2013, currently operating as Novavax AB. Prior to his role at Novavax AB, he served as Chief Executive Officer of Beta-
Cell  N.V.  (Brussels,  Belgium)  from  2008  to  2012  and  as  Chief  Executive  Officer  of  Active  Biotech  AB  (Lund,  Sweden)  from  1999  to  2008.
Mr.  Andréasson  spent  a  number  of  years  in  roles  at  Pharmacia  Corporation  (merged  with  Pfizer  Inc.),  including  President  of  Pharmacia  SA,  France,
President  of  KabiPharmacia  International  and  President  of  Pharmacia  Arzneimittel  GmbH.  He  has  extensive  experience  in  international  biotechnology
companies and in the pharmaceutical industry. Mr. Andréasson received his B.S. in Business Administration and Economics from the Stockholm School of
Economics (Sweden).

Philippe Archinard, Ph.D. has served as a member of our board of directors since 2013 and was previously a member of our supervisory board from 2007
to  May  2013.  Dr.  Archinard  was  appointed  Executive  Vice-President,  Technological  Innovation  and  Scientific  Partnerships  at  Institut  Mérieux  since
January 1, 2021. Prior to his role at Institut Mérieux, he was appointed as General Manager and Chief Executive Officer and director of Transgene S.A. in
December 2004 and chairman of the board of directors in June 2010 until December 2020. Prior to joining Transgene, he served as chief executive officer
of Innogenetics N.V., from 2000 to December 2004. Dr. Archinard previously spent 15 years in various positions of increasing responsibility at bioMérieux,
a multinational biotechnology company, including serving as chief executive officer of its U.S. subsidiary. He has served as a member of bioMérieux’s
board of directors since 2005. Dr. Archinard is a chemical engineer, holds a Ph.D. in biochemistry from the University of Lyon (France), and completed
Harvard Business School’s Program for Management Development (PMD).

Luc Dochez, Pharm.D. has served as a member of our board of directors since 2015. Mr. Dochez is currently a venture partner at DROIA N.V., a position
he has held since October 2018. Prior to then, he served as Chief Executive Officer of Tusk Therapeutics Ltd., a private company focused on developing
novel immuno-oncology products, from March 2015 until its acquisition by Roche in September 2018. Mr. Dochez has over 15 years of experience in the
biotechnology  industry.  He  served  as  the  Chief  Business  Officer  and  Senior  Vice  President  of  Business  Development  of  Prosensa  Holding  N.V.,  a
biotechnology company, from November 2008 until its acquisition by BioMarin Pharmaceutical Inc. in January 2015. Before joining Prosensa, he served as
Vice  President  of  Business  Development  at  TiGenix,  Director  Business  Development  at  Methexis  Genomics,  and  a  consultant  at  Arthur  D.  Little.
Mr. Dochez is a board member of Pharvaris BV, a Dutch company focused on rare diseases, as well as Bioncotech Therapeutics SL, a Spanish oncology
company. He serves as an advisor to EverImmune S.A., a French microbiome company, and is an expert member of the Investment Committee of QBIC II,
a Belgian seed investment fund. Mr. Dochez holds a Pharm.D. degree and a postgraduate degree in business economics from the University of Leuven
(Belgium) and an M.B.A. degree from Vlerick Management School (Belgium).

Martine Ortin George, M.D. has served as a member of our board of directors since 2014. She has extensive experience in the United States in clinical
research, medical affairs and regulatory issues, acquired in small and large companies specialized in oncology. She currently serves as principal and senior
executive  consultant-life  sciences  for  Global  Development  Inc.  Dr.  George  held  the  position  of  Vice  President  in  charge  of  Global  Medical  Affairs  for
Oncology at Pfizer Inc., New York from 2010 to 2015. Previously, Dr. George held the positions of Senior Vice President and Chief Medical Officer at
GPC Biotech, Princeton and Senior Vice President, Head of the Oncology Department at Johnson &Johnson, New Jersey. She is a qualified gynecologist
and oncologist, trained in France and in Montreal. Dr. George began her career as Chief of Service at the Institut Gustave Roussy (France), was a visiting
professor  at  the  Memorial  Sloan  Kettering  Cancer  Center,  New  York,  and  then  held  positions  of  increasing  responsibility  at  Lederle  Laboratories  (a
predecessor company to Pfizer Inc.), Sandoz (now a division of Novartis AG) and Rhône-Poulenc Rorer (today part of Sanofi).

Melanie Rolli, M.D. was appointed to our board of directors effective March 12, 2020. Dr. Rolli currently serves as the Chief Executive Officer of PIQUR
Therapeutics  AG,  a  Basel,  Switzerland-based  clinical  stage  biotechnology  company  dedicated  to  drug  development  of  targeted  therapies  in  various
oncological  and  dermatological  indications,  a  position  she  has  held  since  May  2019.  She  joined  PIQUR  in  2017  as  Chief  Medical  Officer  and  took  on
additional responsibilities as Chief Operating Officer in 2018. Prior to joining PIQUR, she was at Novartis Pharmaceuticals AG from 2003 to 2017, where
she held positions of increasing responsibility across the drug development, safety, and medical affairs functions. Prior to joining Novartis, she worked as a
post-doctoral cancer research physician at SCRIPPS Research Institute for Molecular and Experimental Medicine in La Jolla, California, and as a clinical
researcher in Germany. Dr. Rolli graduated from the University of Heidelberg with a doctorate in medicine and pharmacology.

87

Hilde Windels (acting as legal representative of Hilde Windels BV) has served as a member of our board of directors since 2014 and has served as the
representative  of  Hilde  Windels  BV,  the  legal  entity  that  holds  this  seat,  since  2017.  She  has  over  20  years  of  experience  in  corporate  finance,  capital
markets and strategic initiatives. She currently serves as Chief Executive Officer of Antelope Dx BV and Director of MDx Health NV and Celyad SA.
Prior  to  her  role  as  Antelope  Dx  BV,  she  was  executive  chairman  of  the  board  of  directors  and  co-Chief  Executive  Officer  of  Mycartis  NV,  a  private
immune  diagnostics  company  in  Belgium  and  a  spin-out  of  Biocartis  Group  NV.  Ms.  Windels  initially  joined  Biocartis  in  August  2011  as  its  Chief
Financial Officer, a position she held until September 2015 when she was appointed co-Chief Executive Officer, a position she held until early 2017, when
she became interim Chief Executive Officer of Biocartis until September 2017. From early 2009 to mid-2011, she worked as an independent chief financial
officer for several private biotechnology companies. Ms. Windels served as Chief Financial Officer of Devgen from 1999 to 2008 and as a member of its
board of directors from 2001 to 2008. Ms. Windels also currently serves on the board of directors of Ablynx, MDx Health NV, Celyad NV and VIB in
Belgium. Ms. Windels holds a Masters in Economics from the University of Leuven (Belgium).

Family Relationships

There are no family relationships among any of our executive officers or directors.

6.B.Compensation.

The aggregate compensation paid and benefits in kind granted by us to our current executive officers and directors was €2.8 million for the year ended
December 31, 2020. The fair value of share-based compensation granted to our executive officers and director during the year ended December 31, 2020
amounted  to  €1.3  million.  The  total  amount  set  aside  or  accrued  to  provide  pension,  retirement  or  similar  benefits  for  our  executive  officers  was  €275
thousand for the year ended December 31, 2020 . We did not set aside any similar pension or retirement benefits for the benefit of our directors.

Director Compensation

At our combined general meetings of shareholders held on June 28, 2018, June 21, 2019 and June 26, 2020, shareholders set the total annual amount of the
remuneration  to  be  distributed  among  non-employee  directors  at  €280  thousand  for  2018,  €400  thousand  for  2019  and  €425  thousand  for  2020.  The
following table sets forth information regarding the compensation allocated to our non-employee directors for service on our board of directors during the
year ended December 31, 2020. Gil Beyen, our Chief Executive Officer, is a director but does not receive any additional compensation for his services as a
director.

NAME
Jean Paul Kress

Philippe Archinard

Luc Dochez

Galenos SPRL

Martine Ortin George

Hilde Windels BV

Melanie Rolli

FEES

WARRANTS 

(1)

TOTAL

79,500  €

66,000  €

43,500  €

51,000  €

51,000  €

51,000  €

37,125  €

76,300  €

155,800 

—  €

—  €

—  €

—  €

—  €

—  €

66,000 

43,500 

51,000 

51,000 

51,000 

37,125 

€

€

€

€

€

€

€

(1)

As required by SEC rules governing disclosures in this Annual Report, our equity grants (e.g., options, warrants or free shares) are required to be
disclosed at their fair value on the date of grant and do not have any intrinsic value to their recipients if the strike price of the warrants is higher than
the underlying share price.

Executive Committee Compensation

Our executive committee currently consists of (i) our Chief Executive Officer, (ii) our Chief Financial Officer, Chief Operating Officer and Deputy General
Manager, (iii) our Chief Business Officer, (iv) our Chief Medical Officer (v) our Vice President and Director of Pharmaceutical Operations and Qualified
Person, (vi) our Director of Research and Development Operations, (vii) our Human Resources Director, (viii) our VP, Legal Affairs & General Counsel
and (ix) our Chief Technical Officer. The executive committee discusses and consults with the board and advises the board on our day-to-day management.
The following table sets forth information regarding compensation allocated during the year ended December 31, 2020 to:

• Gil Beyen, our Chief Executive Officer;

•

Eric Soyer, our Chief Financial Officer, Chief Operating Officer and Deputy General Manager; and

88

•

Jérôme Bailly, our Vice President and Director of Pharmaceutical Operations and Qualified Person and Deputy General Manager.

NAME AND PRINCIPAL POSITION

SALARY
(2)

BONUS

EQUITY
AWARDS

ALL OTHER
COMPENSATION

TOTAL

Gil Beyen

Chief Executive Officer

Jérôme Bailly

Deputy General Manager, Director of
Pharmaceutical
Operations and Qualified Person

Eric Soyer

Deputy General Manager, Chief
Financial Officer and
Chief Operating Officer

All other executive committee members

€

€

€

€

409,442 

(1 )

173,985 €

(3)(8)

174,258 

43,350 €

(3)

266,531 

77,350 €

1,094,725 

278,938 €

€

€

€

€

365,703 

(4)

82,218 

(6)

164,418 

(9)

621,320 

€

€

€

€

7,923 

(5)

11,292 

(7)

€

€

957,053 

311,118 

19,952 

(10)

€

528,251 

25,295 

€

2,020,278 

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

Of which $341,296 (€299,042) are allocated by our U.S. subsidiary, Erytech Pharma Inc., for Mr. Beyen’s position as President of Erytech Pharma Inc.
Reflects gross remuneration before taxes.
Reflects compensation received for achievement of strategic goals related to (i) the advancement of clinical trials with eryaspase, (ii) the advancement
of other development programs and (iii) building the organization and securing additional financing.
Reflects the valuation of 28,125 free shares and 105,000 stock options granted during the year ended December 31, 2020.
Reflects benefits in kind related to vehicle rentals.
Reflects the valuation of 23,438 free shares granted during the year ended December 31, 2020.
Reflects (i) €3,834 for benefits in kind related to vehicle rentals and (ii) €7,458 for retirement benefits.
Subject to approval of our shareholders at the next Annual General Meeting of Shareholders.
Reflects the valuation of 46,875 free shares granted during the year ended December 31, 2020.
Reflects (i) €5,797 for benefits in kind related to vehicle rentals and (ii) €14,155 for retirement benefits.

Executive Compensation Arrangements

For  a  discussion  of  our  employment  arrangements  with  our  executive  officers,  see  “Item  7.B.—Related  Party  Transactions—Arrangements  with  Our
Directors  and  Executive  Officers.”  Except  the  arrangements  described  in  “Item  7.B.—Related  Party  Transactions—Agreements  with  Our  Directors  and
Executive Officers,” there are no arrangements or understanding between us and any of our other executive officers providing for benefits upon termination
of their employment, other than as required by applicable law.

Limitations on Liability and Indemnification Matters
Under French law, provisions of bylaws that limit the liability of directors are prohibited. However, French law allows sociétés anonymes to contract for
and maintain liability insurance against civil liabilities incurred by any of their directors and officers involved in a third-party action, provided that they
acted in good faith and within their capacities as directors or officers of the company. Criminal liability cannot be indemnified under French law, whether
directly by the company or through liability insurance.

We have obtained directors’ and officers’ liability insurance for our directors and officers, which includes coverage against liability under the Securities
Act. We have entered into agreements with our directors and executive officers to provide contractual indemnification. With certain exceptions and subject
to limitations on indemnification under French law, these agreements provide for indemnification for damages and expenses including, among other things,
attorneys’ fees, judgments and settlement amounts incurred by any of these individuals in any action or proceeding arising out of his or her actions in that
capacity.

These agreements may discourage shareholders from bringing a lawsuit against our directors and executive officers for breach of their fiduciary duty. These
provisions also may have the effect of reducing the likelihood of derivative litigation against directors and executive officers, even though such an action, if
successful, might otherwise benefit us and our shareholders. Furthermore, a shareholder’s investment in our equity securities may be adversely affected to
the extent we pay the costs of settlement and damage awards against directors and officers pursuant to these insurance agreements.

89

Equity Incentives

We  believe  our  ability  to  grant  equity  incentives  is  a  valuable  and  necessary  compensation  tool  that  allows  us  to  attract  and  retain  the  best  available
personnel for positions of substantial responsibility, provides additional incentives to employees and promotes the success of our business. Due to French
corporate  law  and  tax  considerations,  we  have  historically  granted  several  different  equity  incentive  instruments  to  our  directors,  executive  officers,
employees and other service providers, including:

•

•

•

•

founder’s  share  warrants  (otherwise  known  as  bons  de  souscription  de  parts  de  créateurs  d’entreprise,  or  BSPCE),  which  are  granted  to  our
officers and employees;

share  warrants  (otherwise  known  as  bons  de  souscription  d’actions,  or  BSA),  which  have  historically  only  been  granted  to  non-employee
directors;

restricted, or free, shares (otherwise known as actions gratuites); and

stock options (otherwise known as options de souscription et/ou d’achat d’actions).

Our board of directors’ authority to grant these equity incentive instruments and the aggregate amount authorized to be granted under these instruments
must  be  approved  by  a  two-thirds  majority  of  the  votes  held  by  our  shareholders  present,  represented  or  voting  by  authorized  means,  at  the  relevant
extraordinary shareholders’ meeting. Once approved by our shareholders, our board of directors can grant share warrants (BSA) for up to 18 months, and
restricted (free) shares and stock options for up to 38 months from the date of the applicable shareholders’ approval. The authority of our board of directors
to  grant  equity  incentives  may  be  extended  or  increased  only  by  extraordinary  shareholders’  meetings.  As  a  result,  we  typically  request  that  our
shareholders authorize new pools of equity incentive instruments at every annual shareholders’ meeting.

We have six share-based compensation plans for our executive officers, non-employee directors and employees: the 2014 Plan, the 2016 Plan, the 2017
Plan,  the  2018  Plan,  the  2019  Plan  and  the  2020  Plan,  or  the  Plans.  In  general,  founder’s  share  warrants  and  share  warrants  no  longer  continue  to  vest
following termination of the employment, office or service of the holder and all vested shares must be exercised within post-termination exercise periods
set forth in the grant documents. In the event of certain changes in our share capital structure, such as a consolidation or share split or dividend, French law
and  applicable  grant  documentation  provides  for  appropriate  adjustments  of  the  numbers  of  shares  issuable  and/or  the  exercise  price  of  the  outstanding
warrants.

As of December 31, 2020, employee warrants, non-employee warrants, employee stock options and free shares were outstanding allowing for the purchase
of an aggregate of 2,249,941 ordinary shares at a weighted average exercise price of €9.36 ($11.45) per ordinary share based on the exchange rate in effect
as of such date (this weighted average exercise price does not include 760,505 ordinary shares issuable upon the vesting of outstanding free shares that may
be issued for free with no exercise price being paid).

Founder’s Share Warrants (BSPCE)

Founder’s share warrants have traditionally been granted to certain of our employees who were French tax residents because the warrants carry favorable
tax  and  social  security  treatment  for  French  tax  residents.  Similar  to  options,  founder’s  share  warrants  entitle  a  holder  to  exercise  the  warrant  for  the
underlying vested shares at an exercise price per share determined by our board of directors and at least equal to the fair market value of an ordinary share
on the date of grant. However, unlike options, the exercise price per share is fixed as of the date of implementation of the plans pursuant to which the
warrants may be granted, rather than as of the date of grant of the individual warrants.

90

We have issued two types of founder’s share warrants as follows:

Plan Title
Meeting date

Dates of allocation

Total number of BSPCEs authorized

Total number of BSPCEs granted

Start date for the exercise of the BSPCEs

BSPCE expiry date

BSPCE exercise price per share

Number of shares subscribed as of

December 31, 2020

Total number of BSPCEs granted but not exercised as

of December 31, 2020

Total number of shares available for subscription as of

December 31, 2020

Maximum number of new shares that can be issued

BSPCE 2014

April 2, 2013

January 22, 2014
June 23, 2015
May 6, 2016

19,500

(1)

18,410

(2)

For senior management, one-third was
vested in 2015 and two-thirds were
vested in 2016; for other employees,
immediately upon each grant except for
6,500 BSPCE2014 which could not be
exercised before July 1, 2017

January 22, 2024

€12.250

15,000

16,910

169,100

169,100

BSPCE 2012

May 21, 2012

May 31, 2012
July 18, 2013
July 17, 2014

33,787

33,787

(3)

From May to July 2012, 2013 and 2014

May 20, 2020

€7.362

184,190

—

—

—

(1)

(2)

(3)

2014

 were originally allocated by the board of directors on January 22, 2014. On December 4, 2014, the board of directors approved the

22,500 BSPCE
conversion of 3,000 BSPCE
Excludes 1,000 BSPCE initially allocated to a former officer which were forfeited following his resignation in January 2016 and 90 BSPCE allocated
to a former employee which were forfeited.
On June 26, 2020, the board of directors acknowledged the lapse of 15,368 BSPCE 2012 following their expiration.

 into 3,000 BSA .
2014

2014

Our  shareholders,  or  pursuant  to  delegations  granted  by  our  shareholders,  our  board  of  directors,  determines  the  recipients  of  the  warrants,  the  dates  of
grant, the number and exercise price of the founder’s share warrants to be granted, the number of shares issuable upon exercise and certain other terms and
conditions  of  the  founder’s  share  warrants,  including  the  period  of  their  exercisability  and  their  vesting  schedule.  However,  notwithstanding  any
shareholder authorization, under applicable law, we are no longer eligible to issue any further founders’ share warrants (BSPCE).

Share Warrants (BSA)

Share warrants have historically only been granted to our non-employee directors. Similar to options, share warrants entitle a holder to exercise the warrant
for the underlying vested shares at an exercise price per share determined by our board of directors and at least equal to the fair market value of an ordinary
share on the date of grant. However, unlike options, the exercise price per share is fixed as of the date of implementation of the plans pursuant to which the
warrants may be granted, rather than as of the date of grant of the individual warrants.

91

BSA 2012

May 21, 2012

May 31, 2012
August 3, 2012
July 18, 2013
July 17, 2014
April 29, 2015
August 31, 2015

11,263

10,760

As of December 31, 2020, we have issued six types of share warrants as follows:

Plan title
Meeting date

Dates of allocation

BSA 2020

BSA 2019

BSA 2018

BSA 2017

BSA 2016

June 26, 2020

June 21, 2019

June 28, 2018

June 27, 2017

June 24, 2016

BSA 2014

April 2, 2013

July 28, 2020

October 9, 2019

April 12, 2019

June 27, 2017
January 7, 2018

October 3, 2016
January 8, 2017

December 4, 2014
June 23, 2015

100,000

200,000

15,000

75,000

50,000

25,998

100,000

95,500

60,000

60,000

3,000(1)

3,000

Total number of BSAs
authorized
Total number of BSAs
granted
Start date for the exercise of
the BSAs

BSA expiry date

BSA exercise price per share
Number of shares subscribed
as of December 31, 2020
Total number of BSAs
granted but not exercised as
of December 31, 2020

Total number of shares
available for subscription as
of December 31, 2020
Maximum number of new
shares that can be issued
BSA Expired (caducity)

(4)

(5)

(6)

0

July 28, 2022

15,000 BSA2020
have been declared
lapsed on 4 November
2020 by the Board of
Directors

€6.97

0

0

0

0

October 9, 2021 One third as from 12
April 2020, one third
as from 12 April 2021
and one third as from
12 April 2022

October 9, 2022 25,998 BSA2018 have
been declared lapsed
on October 9, 2019 by
the Board of Directors

€3.71

0

75,000

0

75,000

€6.82

0

0

0

0

15,000

0

25,998

All BSA2016 are
exercisable since 8
January 2020

One-third vested in
2015 and two-thirds
vested in 2016 for
senior management

From May to July 2012,
2013, 2014 and 2015

(2)

January 22, 2024

May 20, 2020

(3)

0

€12.25

1,000

2,900

81,250

45,000

70,000

45,000

29,000

81,250

14,250

45,000

15,000

29,000

0

€7.36

67,420

0

0

0

4,018

(1)

(2)

(3)

(4)

(5)

(6)

Reflects conversion of 3,000 BSPCE2014 into 3,000 BSA2014 pursuant to a decision of the board of directors on December 4, 2014.
October 3, 2021 for the 45,000 BSA granted on October 3, 2016. January 8, 2022 for the 15,000 BSA granted on January 8, 2017.
€18.52 for the 45,000 BSA granted on October 3, 2016. €13.60 for the 15,000 BSA granted on January 8, 2017.
All 55,000 BSA granted on June 27, 2017, are exercisable since June 27, 2020 and for the 45,000 BSA granted on January 7, 2018, one third can be
exercised as from January 7, 2019, one third can be exercised as from January 7, 2020 and the remainder can be exercised a from January 7, 2021.
June 27, 2022 for the 55,000 BSA granted on June 27, 2017, January 7, 2023 for the 40,500 BSA granted on January 7, 2018.
€26.47 for the 55,000 BSA granted on June 27, 2017. €18.00 for the 40,500 BSA granted on January 7, 2018.

Our  shareholders,  or  pursuant  to  delegations  granted  by  our  shareholders,  our  board  of  directors,  determines  the  recipients  of  the  warrants,  the  dates  of
grant, the number and exercise price of the share warrants to be granted, the number of shares issuable upon exercise and certain other terms and conditions
of the share warrants, including the period of their exercisability and their vesting schedule.

92

Free Shares (AGA)

Under our Free Share Plans, we have granted free shares to certain of our employees and officers.

Free shares may be granted to any individual employed by us or by any affiliated company. Free shares may also be granted to our Chairman, to our Chief
Executive  Officer  and  to  our  Deputy  General  Managers.  However,  no  free  share  may  be  granted  to  a  beneficiary  holding  more  than  10%  of  our  share
capital  or  to  a  beneficiary  who  would  hold  more  than  10%  of  our  share  capital  as  a  result  of  such  grant.  The  maximum  number  of  shares  that  may  be
granted or issued is 250,000 under the 2016 Free Share Plan, 300,000 under the 2017 Free Share Plan, 150,000 under the 2018 Free Share Plan, 400,000
under the 2019 Free Share Plan and the 2020 Free Share Plan. In addition, under French law, the maximum number of shares that may be granted shall not
exceed 10% of the share capital as at the date of grant of the free shares (30% if the allocation benefits all employees).

Our board of directors has the authority to administer 2016 Free Share Plan, 2017 Free Share Plan, 2018 Free Share Plan, 2019 Free Share Plan and 2020
Free Share Plan, or the Free Share Plans. Subject to the terms of the Free Share Plans, our board of directors determines the recipients, the dates of grant,
the number of free shares to be granted and the terms and conditions of the free shares, including the length of their vesting period (starting on the grant
date, during which the beneficiary holds a right to acquire shares for free but has not yet acquired any shares) and holding period (starting when the shares
are issued and definitively acquired but may not be transferred by the recipient) within the limits determined by the shareholders. Our shareholders have
determined that the vesting period should be set by the board of directors and should not be less than one year from the date of grant and that the optimal
holding period should be set by the board of directors. From the beginning of the vesting period, the cumulated vesting and holding period should not be
less than two years.

The  board  of  directors  has  the  authority  to  modify  awards  outstanding  under  our  Free  Share  Plans,  subject  to  the  consent  of  the  beneficiary  for  any
modification adverse to such beneficiary. For example, the board has the authority to release a beneficiary from the continued service condition during the
vesting period after the termination of the employment.

The free shares granted under our Free Share Plans will be definitively acquired at the end of the vesting period as set by our board of directors subject to
continued service during the vesting period, except if the board releases a given beneficiary from this condition upon termination of his or her employment
contract, or pursuant to the achievement of the performance conditions set out in the Free Share Plans.

The vesting of the free shares granted under the 2016 Free Share Plan, 2017 Free Share Plan and 2018 Free Share Plan is divided in three equal shares
(33.33%), respectively following the first, second and third year following the date of grant. The vesting of the free shares granted under the 2019 Free
Share Plan and the 2020 Free Share Plan is in five tranches: the first (32%) one year following the date of grant, the second (32%) two years following the
date of grant, the third (32%) three years following the date of grant, the fourth (2%) four years following the date of grant and the fifth (2%) five years
following the date of grant.

At the end of the vesting period, the beneficiary will be the owner of the shares. However, the shares may not be sold, transferred or pledged during the
holding period. In the event of disability before the end of the vesting period, the free shares shall be definitively acquired by the beneficiary on the date of
disability. In the event the beneficiary dies during the vesting period, the free shares shall be definitively acquired at the date of the request of allocation
made by his or her beneficiaries in the framework of the inheritance provided that such request is made within six months from the date of death.

93

As of December 31, 2020, the following free shares have been granted:

Date of grant

October 3, 2016

October 3, 2016

January 8, 2017

June 27, 2017

October 3, 2017

January 7, 2018

June 27, 2017

June 27, 2017

January 7, 2018

January 7, 2018

January 6, 2019

April 12, 2019

April 12, 2019

October 9, 2019

October 9, 2019

February 25, 2020

July 28, 2020

July 28, 2020

Denomination of the
free shares

Competent body that
granted the AGA

Beneficiaries

Number of AGA
granted

Number of shares that
can be subscribed as of
December 31, 2020

AGA2016-03102016

Board of Directors

AGA 2016 (under the 2016 Free Share Plan)
Executive Officers

AGA2016-03102016

Chief Executive Officer

Employees

AGA2016-08012017

Board of Directors

Executive Officers

AGA2016-27062017

Chief Executive Officer

AGA2016-03102017

Chief Executive Officer

Employees

Employees

AGA2016-07012018

AGA2017-27062017

Board of Directors

Board of Directors

Executive Officers
AGA 2017 (under the 2017 Free Share Plan)
Executive Officers

AGA2017-27062017

Chief Executive Officer

Employees

AGA2017-07012018

Board of Directors

Executive Officers

AGA2017-07012018

AGA2018-06012019

Chief Executive Officer

Chief Executive Officer

Employees
AGA 2018 (under the 2018 Free Share Plan)
Employees

AGA2018-12042019

Chief Executive Officer

Executive Officers

AGA2018-12042019

Chief Executive Officer

Employees

59,001

52,260

15,000

8,652

16,650

40,500

45,000

29,475

27,000

86,940

36,150

36,000

58,200

AGA2019-09102019

Board of Directors

AGA 2019 (under the 2019 Free Share Plan)
Executive Officers

149,999

AGA2019-09102019

Board of Directors

AGA2019-25022020

Chief Executive Officer

Employees

Employees

150,942

50,037

AGA2020-28072020

Board of Directors

AGA 2020 (under the 2020 Free Share Plan)
Executive Officers

98,438

AGA2020-28072020

Board of Directors

Employees

151,574

—

—

—

—

—

40,500

(1)

—

—

13,500

(2)

52,110

(2)

(3)

30,750
26,000
(4)

50,500

117,926
(5)

130,889

50,037

(6)

98,438

149,855

(7)

Some free shares have lapsed following the departure of certain employees.

(1) On January 7, 2021, the Chief Executive Officer acknowledged that 40,500 free shares have lapsed following the non-achievement of the performance criteria.
(2) On January 7, 2021, the Chief Executive Officer acknowledged that 65,610 free shares have lapsed following the non-achievement of the performance criteria.
(3) On January 6, 2021, the Chief Executive Officer acknowledged the final acquisition of 1,699 free shares following the partial achievement of the performance criteria.
(4) On February 25, 2021, the Chief Executive Officer acknowledged that 500 free shares have lapsed following the departure of certain employees.
(5) On February 25, 2021, the Chief Executive Officer acknowledged that 749 free shares have lapsed following the departure of certain employees.
(6) On February 25, 2021, the Chief Executive Officer acknowledged the final acquisition of 4,256 free shares following the partial achievement of the performance criteria.
(7) On February 25, 2021, the Chief Executive Officer acknowledged that 625 free shares have lapsed following the departure of certain employees.

Stock Options (SO)

Stock options issued pursuant to our Stock Option Plans provide the holder with the right to purchase a specified number of ordinary shares from us at a
fixed exercise price payable at the time the stock option is exercised, as determined by our board of directors. Our Stock Option Plans generally provide
that the exercise price for any stock option will be no less than 95% of the average of the closing sales prices per ordinary share during the 20 market
trading days prior to the day of the board of directors’ decision to grant the options. The maximum number of ordinary shares subject to stock options
issued is 250,000 ordinary shares under the 2016 Stock Option Plan, 300,000 under the 2017 Stock Option Plan, 300,000 under the 2018 Stock Option
Plan, 700,000 under the 2019 Stock Option Plan and 500,000 under the 2020 Stock Option Plan. Incentive stock options and non-statutory stock options
may be granted under our Stock Option Plan.

Stock options may be granted to any individual employed by us or by any affiliated company. Stock options may also be granted to our Chairman, our
General Manager and to our Deputy General Managers. In addition, incentive stock options may not be granted to owners of shares possessing 10% or
more of the share capital of the company.

Our board of directors has the authority to administer and interpret the 2016 Stock Option Plan, 2017 Stock Option Plan, 2018 Stock Option Plan, 2019
Stock Option Plan and 2020 Stock Option Plan, or the Stock Option Plans. Subject to the terms and conditions of our Stock Option Plans, our board of
directors determines the recipients, dates of grant, exercise price, number of stock options to be granted and the terms and conditions of the stock options,
including the length of their vesting schedules. Our board of directors is not required to grant stock options with vesting and exercise terms that are the
same for every participant. The term of each stock option

94

granted under our Stock Option Plan will generally be 10 years from the date of grant. Further, stock options will generally terminate on the earlier of when
the beneficiary ceases to be an employee of our company or upon certain transactions involving our company.

The board of directors has the authority to modify awards outstanding under our Stock Option Plans, subject to the written consent of the beneficiary for
any modification adverse to such beneficiary. For example, the board of directors has the authority to extend a post-termination exercise period.

Stock options granted under our Stock Option Plans generally may not be sold, transferred or pledged in any manner other than by will or by the laws of
descent or distribution. In the event of disability, unless otherwise resolved by our board of directors, the beneficiary’s right to exercise the vested portion
of his or her stock option generally terminates six months after the last day of such beneficiary’s service, but in any event no later than the expiration of the
maximum term of the applicable stock options. In the event the beneficiary dies during the vesting period, then, unless otherwise resolved by our board of
directors,  the  beneficiary’s  estate  or  any  recipient  by  inheritance  or  bequest  may  exercise  any  portion  of  the  stock  option  vested  at  the  time  of  the
beneficiary’s death within the six months following the date of death, but in any event no later than the expiration of the maximum term of the applicable
stock options.

As of December 31, 2020, the following options have been granted:

Date of grant

Denomination of the
SOP

Competent body that
granted the SOP

Beneficiaries

Number of SOP
granted

Exercise
Price

October 3, 2016

October 3, 2016

January 8, 2017

June 27, 2017

October 3, 2017

June 27, 2017

June 27, 2017

January 7, 2018

January 7, 2018

SOP 2016 (under the 2016 Stock Option Plan)

SOP2016-03102016

Board of Directors

SOP2016-03102016

Chief Executive Officer

SOP2016-08012017

Chief Executive Officer

SOP2016-27062017

Chief Executive Officer

SOP2016-03102017

Chief Executive Officer

Employees

Employees

Employees

Employees

Employees

SOP 2017 (under the 2017 Stock Option Plan)

SOP2017-27062017

Board of Directors

SOP2017-27062017

Chief Executive Officer

SOP2017-07012018

Board of Directors

SOP2017-07012018

Chief Executive Officer

Employees

Employees

Employees

Employees

SOP 2018 (under the 2018 Stock Option Plan)

September 7, 2018

SOP2018-07092018

Board of Directors

SOP2018-06012019

Chief Executive Officer

Employees

Employees

January 6, 2019

April 12, 2019

April 12, 2019

July 31, 2019

October 9, 2019

October 9, 2019

SOP2018-12042019

Chief Executive Officer

Executive Officer (Gil Beyen)

SOP2018-12042019

Chief Executive Officer

Employees

SOP 2019 (under the 2019 Stock Option Plan)

SOP2019-31072019

SOP2019-09102019

SOP2019-09102019

Board of Directors

Board of Directors

Board of Directors

Executive Officer (J.P Kress)

Executive Officers (Gil Beyen)

Employees

Employees

February 25, 2020

SOP2019-25022020

Chief Executive Officer

July 28, 2020

July 28, 2020

SOP2020-28072020

Board of Directors

SOP2020-28072020

Board of Directors

November 13, 2020

SOP2020-13112020

Chief Executive Officer

Executive Officers (Gil Beyen &
J.P Kress)

Employees

Employees

SOP 2020 (under the 2020 Stock Option Plan)

21,999

22,500

3,000

18,000

30,000

12,000

10,200

40,500

56,703

24,000

38,025

18,200

58,705

59,123

105,000

242,250

41,950

135,000

239,000

75,000

€18.52

€18.52

€15.65

€26.47

€23.59

€26.47

€26.47

€18.00

€18.00

€9.26

€6.38

€7.20

€7.20

€5.78

€4.25

€4.25

€5.87

€6.88

€6.88

€6.14

Number of shares
that can be
subscribed as of
December 31, 2020

21,999

9,000

—

18,000

9,000

12,000

3,600

40,500

31,389

—

21,450

(1)

18,200

50,125

59,123

105,000
(2)

201,500
40,950

(3)

135,000

(4)

238,250
75,000

(1) On January 6, 2021 and February 25, 2021, the Chief Executive Officer acknowledged respectively that 975 and 1,950 stock options have lapsed following the departure of employees
(2) On January 6, 2021 and February 25, 2021, the Chief Executive Officer acknowledged respectively that 1,750 and 5,000 stock options have lapsed following the departure of employees.
(3) On February 25, 2021, the Chief Executive Officer acknowledged that 1,000 stock options have lapsed following the departure of employees.
(4) On January 6, 2021 and February 25, 2021, the Chief Executive Officer acknowledged respectively that 1,750 and 5,250 stock options have lapsed following the departure of employees.

Some stock options have lapsed following the departure of certain employees.

95

6.C.Board Practices.

Prior  to  May  2013,  our  company  had  a  two-tier  corporate  governance  system:  an  executive  board  was  responsible  for  managing  the  company  and  a
supervisory board oversaw and advised the executive board. We have now established a board of directors. Our board of directors currently consists of
eight members, less than a majority of whom are citizens or residents of the United States. As permitted by French law, two of our directors, Galenos SPRL
and Hilde Windels BV, are legal entities. Each of these entities has designated an individual, Sven Andréasson and Hilde Windels, respectively, to represent
it and to act on its behalf at meetings of our board of directors. These representatives have the same responsibilities to us and to our shareholders as he or
she would have if he or she had been elected to our board of directors in his or her individual capacity.

Under  French  law  and  our  bylaws,  our  board  of  directors  must  be  comprised  of  between  three  and  18  members,  without  prejudice  to  the  derogation
established  by  law  in  the  event  of  merger.  Since  January  1,  2017,  the  number  of  directors  of  each  gender  may  not  be  less  than  40%.  Following  the
resignation of Allene Diaz effective September 30, 2019, the Board sought a replacement. On March 12, 2020, Dr. Melanie Rolli was appointed to the
board. The General Shareholders’ Meeting decided on June 26, 2020 to ratify the appointment of Mrs. Melanie Rolli as Director for a three-year term. To
date, our board is composed of five men and three women. Any appointment made in violation of this limit that is not remedied within six months of this
appointment will be null and void. Within these limits, the number of directors is determined by our shareholders. Directors are appointed, reappointed to
their position, or removed by the company’s ordinary general meeting, and in particular, any appointment which remedies a violation of the 40% limit must
be ratified by our shareholders at the next ordinary general meeting. Their term of office, in accordance with our bylaws, is three years. Directors chosen or
appointed to fill a vacancy must be elected by our board of directors for the remaining duration of the current term of the vacant director. The appointment
must then be ratified at the next shareholders’ general meeting. In the event the board of directors would be comprised of less than three directors as a result
of a vacancy, the remaining directors shall immediately convene a shareholders’ general meeting to elect one or several new directors so there are at least
three directors serving on the board of directors, in accordance with French law.

The following table sets forth the names of our directors, the years of their initial appointment as directors of the board and the expiration dates of their
current term.

Jean-Paul Kress

Gil Beyen

Galenos SPRL represented by Sven Andréasson 

(2)

Philippe Archinard

Luc Dochez

Martine Ortin George

Hilde Windels BV represented by Hilde Windels

(3)

Melanie Rolli

CURRENT
POSITION

Chairman

Director

Director

Director

Director

Director

Director

Director

YEAR OF
INITIAL
APPOINTMENT

TERM
EXPIRATION
YEAR

(1)

2019

2013

2014

2013

2015

2014

2017

2020

2022

2022

2022

2022

2022

2023

2023

2023

(1)

(2)

(3)

At the end of the ordinary general meeting convened to approve the accounts for the previous financial year during the year in which their term office
expires.
Galenos  SPRL  has  designated  an  individual,  Sven  Andréasson,  to  represent  it  and  to  act  on  its  behalf  at  meetings  of  our  board  of  directors.  Mr.
Andréasson previously served as a member of our board from 2013 to 2014. Galenos SPRL is a company controlled by Mr. Andréasson.
Hilde Windels BV was appointed as a director by our shareholders at our combined general meeting in June 2017. Hilde Windels BV has designated
an individual, Hilde Windels, to represent it and to act on its behalf at meetings of our board of directors. She served as a member of the board of
directors in her individual capacity from 2014 to 2017. Hilde Windels BV is a company controlled by Ms. Windels.

Director Independence

As a foreign private issuer, under the listing requirements and rules of the Nasdaq Global Select Market, we are not required to have independent directors
on our board of directors, except to the extent that our audit committee is required to consist of independent directors. Nevertheless, our board of directors
has  undertaken  a  review  of  the  independence  of  the  directors  and  considered  whether  any  director  has  a  material  relationship  with  us  that  could
compromise his or her ability to exercise independent judgment in carrying out his or her responsibilities. Based upon information requested from, and
provided by, each director concerning such director’s

96

background, employment and affiliations, including family relationships, our board of directors determined that all of our directors, except for Mr. Beyen,
qualify as “independent directors” as defined under applicable rules of the Nasdaq Global Select Market and the independence requirements contemplated
by Rule 10A-3 under the Exchange Act. In making these determinations, our board of directors considered the current and prior relationships that each non-
employee  director  has  with  our  company  and  all  other  facts  and  circumstances  that  our  board  of  directors  deemed  relevant  in  determining  their
independence, including the beneficial ownership of our securities by each non-employee director and his or her affiliated entities (if any).

Role of the Board in Risk Oversight

Our  board  of  directors  is  primarily  responsible  for  the  oversight  of  our  risk  management  activities  and  has  delegated  to  the  audit  committee  the
responsibility to assist our board in this task. The audit committee also monitors our system of disclosure controls and procedures and internal control over
financial  reporting  and  reviews  contingent  financial  liabilities.  The  audit  committee,  among  other  things,  examines  our  balance  sheet  commitments  and
risks and the relevance of risk monitoring procedures. While our board oversees our risk management, our management is responsible for day-to-day risk
management  processes.  Our  board  of  directors  expects  our  management  to  consider  risk  and  risk  management  in  each  business  decision,  to  proactively
develop and monitor risk management strategies and processes for day-to-day activities and to effectively implement risk management strategies adopted
by the board of directors. We believe this division of responsibilities is the most effective approach for addressing the risks we face.

Corporate Governance Practices

As a French société anonyme, we are subject to various corporate governance requirements under French law. In addition, as a foreign private issuer listed
on  the  Nasdaq  Global  Select  Market,  we  are  subject  to  Nasdaq  corporate  governance  listing  standards.  However,  the  corporate  governance  standards
provide that foreign private issuers are permitted to follow home country corporate governance practices in lieu of Nasdaq rules, with certain exceptions.
We  currently  rely  on  these  exemptions  for  foreign  private  issuers  and  follow  French  corporate  governance  practices  in  lieu  of  the  Nasdaq  corporate
governance  rules,  which  would  otherwise  require  that  (1)  a  majority  of  our  board  of  directors  consist  of  independent  directors;  (2)  we  establish  a
nominating and corporate governance committee; and (3) our remuneration committee be composed entirely of independent directors.

As a foreign private issuer, we are required to comply with Rule 10A-3 of the Exchange Act, relating to audit committee composition and responsibilities.
Rule  10A-3  provides  that  the  audit  committee  must  have  direct  responsibility  for  the  nomination,  compensation  and  choice  of  our  auditors,  as  well  as
control  over  the  performance  of  their  duties,  management  of  complaints  made,  and  selection  of  consultants.  However,  if  the  laws  of  a  foreign  private
issuer’s  home  country  require  that  any  such  matter  be  approved  by  the  board  of  directors  or  the  shareholders,  the  audit  committee’s  responsibilities  or
powers with respect to such matter may instead be advisory. Under French law, the audit committee may only have an advisory role and appointment of our
statutory auditors, in particular, must be decided by the shareholders at our annual meeting.

In addition, Nasdaq rules require that a listed company specify that the quorum for any meeting of the holders of common stock be at least 33 1/3% of the
outstanding  shares  of  the  company’s  voting  stock.  Consistent  with  French  law,  our  bylaws  provide  that  a  quorum  requires  the  presence  of  shareholders
having at least (1) 20% of the shares entitled to vote in the case of an ordinary shareholders’ general meeting or at an extraordinary shareholders’ general
meeting where shareholders are voting on a capital increase by capitalization of reserves, profits or share premium, or (2) 25% of the shares entitled to vote
in the case of any other extraordinary shareholders’ general meeting. If a quorum is not present, the meeting is adjourned. There is no quorum requirement
when  an  ordinary  general  meeting  is  reconvened,  but  the  reconvened  meeting  may  consider  only  questions  which  were  on  the  agenda  of  the  adjourned
meeting. When an extraordinary general meeting is reconvened, the quorum required is 20% of the shares entitled to vote, except where the reconvened
meeting  is  considering  capital  increases  through  capitalization  of  reserves,  profits  or  share  premium.  For  these  matters,  no  quorum  is  required  at  the
reconvened meeting. If a quorum is not present at a reconvened meeting requiring a quorum, then the meeting may be adjourned for a maximum of two
months.

Furthermore, we follow French corporate governance practices in lieu of the Nasdaq corporate governance rules that require shareholder approval prior to
specified  issuances  of  securities.  More  specifically,  Nasdaq  Marketplace  Rule  5635  requires  a  U.S.  domestic  listed  company  to  obtain  shareholder
approval:  (1)  prior  to  the  issuance  of  securities  when  the  issuance  or  potential  issuance  will  result  in  a  change  of  control  of  the  issuer;  (2)  prior  to  the
issuance of securities in connection with a transaction other than a public offering involving the sale, issuance or potential issuance by the issuer alone, or
together with sales by its officers, directors or substantial shareholders, of common stock (or securities convertible into or exercisable for common stock)
equal to 20% or more of the common stock or 20% or more of the voting power outstanding before the issuance for less than the greater of book or market
value; and (3) prior to the issuance of securities when an equity compensation arrangement is made or materially amended, including prior to the issuance
of common stock to the issuer’s officers, director, employees or consultants for less than the greater of book or market value. While French law requires a
French company to obtain prior shareholder approval to issue shares, its shareholders may pre-authorize the company’s board of directors to issue shares
such that shareholder approval is not required at the time of issuance.

97

Board Committees

The board of directors has established an audit committee and a remuneration and appointments committee, which operate pursuant to rules of procedure
adopted  by  our  board  of  directors.  The  board  of  directors  has  also  established  a  clinical  strategy  committee,  which  is  responsible  for  analyzing  and
reviewing our clinical and regulatory strategy. Subject to available exemptions, the composition and functioning of all of our committees (other than the
clinical strategy committee) will comply with all applicable requirements of the French Commercial Code, the Exchange Act, the Nasdaq Global Select
Market and SEC rules and regulations.

In accordance with French law, committees of our board of directors will only have an advisory role and can only make recommendations to our board of
directors. As a result, decisions will be made by our board of directors taking into account non-binding recommendations of the relevant board committee.

Audit Committee. Our audit committee assists our board of directors in its oversight of our corporate accounting and financial reporting and submits the
selection of our statutory auditors, their remuneration and independence for approval. Mr. Andréasson, Dr. Archinard and Ms. Windels currently serve on
our audit committee. Ms. Windels is the chairperson of our audit committee. Our board has determined that each of Mr. Andréasson, Dr. Archinard and
Ms. Windels is independent within the meaning of the applicable listing rules and the independence requirements contemplated by Rule 10A-3 under the
Exchange  Act.  Our  board  of  directors  has  further  determined  that  Ms.  Windels  is  an  “audit  committee  financial  expert”  as  defined  by  SEC  rules  and
regulations and that each of the members qualifies as financially sophisticated under the applicable exchange listing rules. The principal responsibility of
our audit committee is to monitor the existence and efficacy of the company’s financial audit and risk control procedures on an ongoing basis.

Our board of directors has specifically assigned the following duties to the audit committee:

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

examining the corporate and consolidated annual and interim financial statements;

validating the relevance of the company’s accounting methods and choices;

verifying the relevance of financial information published by the company;

ensuring the implementation of internal control procedures;

verifying the correct operation of internal controls with the assistance of internal quality audits;

examining the schedule of work for internal and external audits;

examining any subject likely to have a significant financial and accounting impact;

examining the state of significant disputes;

examining off-balance sheet commitments and risks;

examining the relevance of risk monitoring procedures;

establishing  and  overseeing  procedures  for  the  treatment  of  complaints  or  submissions  identifying  concerns  regarding  accounting,  internal
accounting controls, or auditing matters;

examining  any  regulated  agreements  as  well  as  monitoring  any  agreements  relating  to  current  operations  and  entered  into  under  normal
conditions;

directing the selection of statutory auditors, their remuneration, and ensuring their independence;

ensuring proper performance of the statutory auditors’ mission; and

establishing the rules for the use of statutory auditors for work other than auditing of the accounts and verifying the correct execution thereof.

Remuneration  and  Appointments  Committee.  Mr.  Andréasson,  Dr.  Archinard  and  Dr.  Kress  currently  serve  on  our  remuneration  and  appointments
committee. Dr. Archinard is the chairperson of our remuneration and appointments committee.

Our board of directors has specifically assigned the following duties to the remuneration and appointments committee:

•

•

formulating  recommendations  and  proposals  concerning  (i)  the  various  elements  of  the  remuneration,  pension  and  health  insurance  plans  for
executive officers and directors, (ii) the procedures for establishing the terms and conditions for setting the variable portion of their remunerations,
and (iii) a general policy for awarding share warrants and founder’s warrants;

examining the amount of the annual remuneration of the directors and the system for distributing such amount amongst the directors, taking into
account their dedication and the tasks performed within the board of directors;

98

•

•

•

•

•

•

advising and assisting the board of directors as necessary in the selection of senior executives and the establishment of their remuneration;

assessing any increases in capital reserved for employees;

assisting the board of directors in the selection and recruitment of new directors;

ensuring the implementation of structures and procedures to allow the application of good governance practices within the company;

preventing conflicts of interest within the board of directors; and

implementing the procedure for evaluating the board of directors.

Clinical Strategy Committee. Dr. George, Mr. Dochez, Dr. Archinard and Dr. Rolli currently serve on our clinical strategy committee. Dr. George is the
chairperson  of  our  clinical  strategy  committee.  Our  clinical  strategy  committee  is  responsible  for  analyzing  and  reviewing  our  clinical  and  regulatory
strategy. It meets, at least once a year, and makes recommendations to the board of directors regarding our clinical and regulatory development strategy.

Our board of directors has specifically assigned the following duties to the clinical strategy committee:

•

•

analyzing and reviewing our clinical development focus; and

analyzing and reviewing our regulatory approval strategies.

6.D.Employees.

As of December 31, 2020, we had 206 employees. We consider our labor relations to be positive. At each date shown, we had the following headcount,
broken out by department and geography:

Function:

Research and preclinical development

Clinical, medical and regulatory affairs

Pharmaceutical operations

Manufacturing and supply

Management and administration

Business development and licensing

Total

Geography:

France

United States

Total

6.E.Share Ownership.

At December 31,

2018

2019

2020

35 

33 

20 

41 

37 

6 

172 

146 

26 

172 

31 

34 

26 

82 

38 

6 

217 

158 

59 

217 

24 

37 

29 

76 

35 

5 

206 

145 

61 

206 

For  information  regarding  the  share  ownership  of  our  directors  and  executive  officers,  see  “Item  6.B—Compensation”  and  “Item  7.A—Major
Shareholders.”

Item 7. Major Shareholders and Related Party Transactions

7.A. Major Shareholders

The following table and accompanying footnotes set forth, as of December 31, 2020, information regarding beneficial ownership of our ordinary shares by:

•

•

each person, or group of affiliated persons, known by us to beneficially own more than 5% of our ordinary shares;

each of our executive officers;

99

•

•

each of our directors; and

all of our executive officers and directors as a group.

Beneficial ownership is determined according to the rules of the SEC and generally means that a person has beneficial ownership of a security if he, she or
it possesses sole or shared voting or investment power of that security, including free shares that vest within 60 days of December 31, 2020 and options and
warrants  that  are  currently  exercisable  or  exercisable  within  60  days  of  December  31,  2020.  Shares  subject  to  free  shares  that  vest  within  60  days  of
December 31, 2020 and shares subject to warrants currently exercisable or exercisable within 60 days of December 31, 2020 are deemed to be outstanding
for  computing  the  percentage  ownership  of  the  person  holding  these  free  shares  and  warrants  and  the  percentage  ownership  of  any  group  of  which  the
holder is a member, but are not deemed outstanding for computing the percentage of any other person.

Except  as  indicated  by  the  footnotes  below,  we  believe,  based  on  the  information  furnished  to  us,  that  the  persons  named  in  the  table  below  have  sole
voting  and  investment  power  with  respect  to  all  shares  shown  that  they  beneficially  own,  subject  to  community  property  laws  where  applicable.  The
information does not necessarily indicate beneficial ownership for any other purpose, including for purposes of Sections 13(d) and 13(g) of the Exchange
Act.

Our calculation of the percentage of beneficial ownership is based on 20,057,562 of our ordinary shares (including ordinary shares in the form of ADSs)
outstanding as of December 31, 2020. Unless otherwise indicated, the address of each beneficial owner listed in the table below is c/o ERYTECH Pharma
S.A., 60 Avenue Rockefeller, 69008 Lyon, France.

NAME OF BENEFICIAL OWNER
5% Shareholders:

BVF Partners LP 

(1)

RA Capital Management LLC

(2)

Auriga Ventures III FCPR 

(3)

Directors and Executive Officers:
(4)

Gil Beyen 

Eric Soyer 

(5)

Jean-Sébastien Cleiftie

(6)

Iman El-Hariry 
(8)

Jérôme Bailly 

(7)

Stewart Craig

Anne-Cécile Fumey

(9)

Brian Schwab

Françoise Horand

(10)

Jean-Paul Kress

Galenos SPRL 

(11)

Philippe Archinard 

(12)

Luc Dochez 

(13)

Martine Ortin George 
(14)

Hilde Windels BV 

(14)

Melanie Rolli

All directors and executive officers as a group (16 persons) 

(15)

NUMBER OF
ORDINARY
SHARES
BENEFICIALLY
OWNED

PERCENTAGE
OF ORDINARY
SHARES
BENEFICIALLY
OWNED

4,468,058

2,000,000

1,147,522

62,468

22,310

21,304

83,249

25,821

0

469

0

3,885

0

25,251

35,550

25,250

25,251

25,251

0

356,059

22.28 %

9.97 %

5.72 %

0.31 %

0.11 %

0.11 %

0.42 %

0.13 %

— %

— %

— %

0.02 %

— %

0.13 %

0.18 %

0.13 %

0.13 %

0.13 %

— %

1.78 %

*    Represents beneficial ownership of less than 1%.
(1)

The address of BVF Partners LP. is One Sansome Street, 30  Floor, San Francisco, California 94104. Mark Lampert is the General Partner of BVF
Partners LP and may be deemed to be beneficial owner of securities of the company directly held by BVF Partners LP., and may be deemed to have the
power to vote or direct the vote of and the power to dispose or direct the disposition of such securities. Mark Lampert disclaims beneficial ownership
of the securities held directly by BVF Partners LP., except to the extent of his pecuniary interest.

th

100

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

(14)

(15)

The  address  of  RA  Capital  Management  LLC  is  20  Park  Plaza,  Suite  1200,  Boston,  Massachusetts  02116.  Mr.  Peter  Kolchinsky  is  the  Managing
Director and may be deemed to be beneficial owner of securities of the company directly held by RA Capital Management LLC, and may be deemed
to have the power to vote or direct the vote of and the power to dispose or direct the disposition of such securities. Mr. Peter Kolchinsky disclaims
beneficial ownership of the securities held directly by RA Capital Management LLC, except to the extent of his pecuniary interest.
Jacques Chatain,  Bernard  Daugeras  and  Patrick  Bamas  are  managers  of  Auriga  Ventures  III  FCPR,  or  Auriga,  and  exercise  voting  and  investment
power with respect to shares held by Auriga. The managers disclaim beneficial ownership of all shares held by Auriga. The address of Auriga is c/o
Auriga Partners, 18 avenue Matignon 75008 Paris, France.
Consists of 2,468 ordinary shares and 60,000 ordinary shares issuable upon exercise of warrants that are exercisable within 60 days of December 31,
2020.
Consists of 2,310 ordinary shares and 20,000 ordinary shares issuable upon exercise of warrants that are exercisable within 60 days of December 31,
2020.
Consists of 1,054 ordinary shares and 20,250 ordinary shares issuable upon exercise of warrants that are exercisable within 60 days of December 31,
2020.
Consists of 83,249 ordinary shares issuable upon exercise of warrants that are exercisable within 60 days of December 31, 2020.
Consists of 1,821 ordinary shares and 24,000 ordinary shares issuable upon exercise of warrants that are exercisable within 60 days of December 31,
2020.
Consists of 469 ordinary shares.
Consists  of  385  ordinary  shares  and  3,500  ordinary  shares  issuable  upon  exercise  of  warrants  that  are  exercisable  within  60  days  of  December  31,
2020.
Consists  of  one  ordinary  share  and  25,250  ordinary  shares  issuable  upon  exercise  of  warrants  that  are  exercisable  within  60  days  of  December  31,
2020.
Consists of 10,300 ordinary shares and 25,250 ordinary shares issuable upon exercise of warrants that are exercisable within 60 days of December 31,
2020.
Consists of 25,250 ordinary shares issuable upon exercise of warrants that are exercisable within 60 days of December 31, 2020
Consists  of  one  ordinary  share  and  25,250  ordinary  shares  issuable  upon  exercise  of  warrants  that  are  exercisable  within  60  days  of  December  31,
2020.
Consists of 18,810 ordinary shares and 337,249 ordinary shares issuable upon exercise of warrants that are exercisable within 60 days of December 31,
2020.

None of our principal shareholders have voting rights different than our other shareholders.

As of 8 March 2021, we estimate that approximately 40% of our outstanding ordinary shares (including ordinary shares in the form of ADSs) were held in
the United States by approximately 20 holders of record including Bank of New York Mellon, the nominee of the Depositary Trust Company, which held
approximately 8.40% of our outstanding ordinary shares as of said date. The actual number of holders is greater than these numbers of record holders and
includes beneficial owners whose ordinary shares or ADSs are held in street name by brokers and other nominees. This number of holders of record also
does not include holders whose shares may be held in trust by other entities.

7.B.Related Party Transactions.

We have engaged in the following transactions with our directors, executive officers and holders of more than five percent (5%) of our outstanding voting
securities and their affiliates, which we refer to as our related parties.

Agreements with Our Directors and Executive Officers

Severance Pay

On May 24, 2013, the board of directors approved terms for severance pay to be awarded under certain conditions to our then-executive officers, which
included Gil Beyen, our Chief Executive Officer. The agreement provides that, in the event of expiration of the executive’s term of office (except where
renewal is rejected by the executive) or in the event of revocation (unless the executive has been revoked for gross negligence or willful misconduct as that
term  is  defined  by  the  labor  chamber  of  the  French  Supreme  Court),  the  executive  is  entitled  to  severance  equal  to  12  times  the  average  of  monthly
remuneration (bonuses included) received during the 12 months preceding the revocation decision or the expiration of the executive’s term of office. The
payment of the compensation shall be subject to the performance of the following conditions: (i) respect of our company’s budget and expenditures

101

and (ii) at least one of the following conditions: (a) an agreement of collaboration or a current license, and (b) one product in an active phase of clinical
development by the company. No related expense has been recorded to date.

Executive Employment Agreement with Gil Beyen

Effective April 1, 2019, we and our U.S. subsidiary, ERYTECH Pharma, Inc., entered into an executive employment agreement with Mr. Beyen, or the
Executive Employment Agreement, that provides for the terms of his employment and compensation as President of ERYTECH

Pharma, Inc., including an annual base salary and variable compensation in an amount up to 50% of his base salary, based upon achievement of specified
performance  objectives.  The  Executive  Employment  Agreement  also  provides  for  severance  pay  in  specified  situations.  In  the  event  of  Mr.  Beyen’s
termination without “cause,” he will be entitled to an amount equal to 12 times the average of monthly remuneration (bonuses included) received during the
12 months preceding his termination, subject to certain specified performance conditions. Mr. Beyen will also be entitled to these severance benefits (with
no duplication) if Mr. Beyen is terminated without “cause” or resigns for “good reason” within 12 months following a change of control of our company.
Any severance payments paid to Mr. Beyen under the Executive Employment Agreement are conditioned on Mr. Beyen executing a release. Pursuant to an
Employee Confidential Information and Invention Assignment Agreement attached to his Executive Employment Agreement, upon voluntary termination
or termination for ”cause,” for a period of 12 months, Mr. Beyen cannot seek employment in any business in which we are engaged or plans to be engaged,
or service that we provide or have plans to provide.

Employment Agreements with Eric Soyer and Jean-Sebastien Cleiftie

In September 2015 and October 2016, respectively, we entered into employment agreements with Messrs. Soyer, and Cleiftie. Each employment agreement
provides for an annual base salary and variable compensation in amounts up to 35% of the executive’s current base salaries, based upon achievement of
specified  performance  objectives.  These  employment  agreements  also  provide  for  severance  pay  in  specified  situations.  In  the  event  of  the  executive’s
termination in the absence of gross negligence or willful misconduct, the executive will be entitled to an amount equal to six months’ base salary, plus an
additional three months’ base salary for each full year such executive has worked for us, up to a maximum of 12 months’ base salary in total, including any
additional indemnity as provided for by French law. In connection with a change of control of our company, if the executive is terminated in the absence of
gross  negligence  or  willful  misconduct  or  resigns  pursuant  to  suffering  a  diminution  of  the  executive’s  job  duties,  or  in  the  event  of  a  mutually  agreed
termination  (rupture  conventionnelle)  under  French  law,  such  executive  will  be  entitled  to  an  amount  equal  to  12  times  the  average  of  monthly
remuneration, including bonuses, received during the 12 months preceding the termination. If a change of control of our company occurs within 24 months
of the granting of bonus shares, such executive will be entitled to an amount intended to compensate for the potential loss of compensation in the event of
cancellation of bonus shares granted or for the potential loss of favorable tax treatment in the event of the sale of such shares, in the context of this change
of control. These agreements also provide for a 12-month non-compete clause (18 months in the case of Mr. Soyer), whereby the executive is entitled to an
amount equal to 33% of his average monthly remuneration over the last three months (12 months in the case of Mr. Soyer).

Employment Agreements with Françoise Horand, Anne-Cécile Fumey and Brian Schwab

In October 2008, February 2016 and January 2020, respectively, we entered into employment agreements with Mrs. Horand, Mrs. Fumey and Mr. Schwab.

Each  employment  agreement  provides  for  an  annual  base  salary  and  variable  compensation  in  amounts  ranging  from  20%  to  25%  of  the  current  base
salaries, based upon achievement of specified performance objectives. These employment agreements do not provide any additional termination indemnity
other  than  the  one  provided  for  by  French  law.  Mrs.  Horand  and  Mr.  Schwab’s  agreements  provide  for  a  18-month  non-compete  clause,  whereby  Mrs.
Horand and Mr. Schwab are entitled to an amount equal to 33% of their average monthly remuneration over the last three months.

Employment Agreement with Iman El-Hariry

In June 2015, our U.S. subsidiary, ERYTECH Pharma, Inc., entered into an employment agreement with Dr. El-Hariry that provides for an annual base
salary and variable compensation in an amount up to 35% of her base salary, based upon achievement of specified performance objectives. This variable
amount was increased from 35% to 40% of her base salary in January 2019. The agreement also provides for severance pay in specified situations. In the
event of Dr. El-Hariry’s termination without cause (as defined in Dr. El-Hariry’s employment agreement), she will be entitled to an amount equal to six
months’ base salary, plus an additional three months’ base salary for each full year she has worked for us, up to a maximum of 12 months’ base salary in
total. If Dr. El-Hariry resigns as a result of (i) a diminution of her job duties, (ii) a change in reporting or (iii) a relocation, she will be entitled to an amount
up to 12 months’ base salary compensation depending upon the length of her employment with us. In connection with a change of control, if Dr. El-Hariry
is terminated within 12 months (a) by us, (b) by mutual agreement or (c) by her decision to resign after receiving an

102

offer that is not at least equivalent to her position prior to the change in control, she will be entitled to a lump sum payment equal to one year’s salary plus
bonus (under the condition that she would not be eligible for the other severance benefits described above). Upon termination for any reason, our company
may request Dr. El-Hariry to execute a non-competition agreement for a period of 12 months, whereby Dr. El-Hariry will be entitled to severance pay.

Employment Agreement with Stewart Craig

In November 2020, our U.S. subsidiary, ERYTECH Pharma, Inc., entered into an employment agreement with Dr. Craig that provides for an annual base
salary and variable compensation in an amount up to 35% of his base salary, based upon achievement of specified performance objectives. The agreement
also  provides  for  severance  pay  in  specified  situations.  In  the  event  of  Dr.  Craig’s  termination  without  cause  (as  defined  in  Dr.Craig’s  employment
agreement), he will be entitled to an amount equal to six months’ base salary during the first 24 months of employment, plus an additional three months’
base salary for each full year he has worked for us, up to a maximum of 12 months’ base salary in total. In connection with a change of control, if Dr. Craig
is terminated within 12 months (a) by us, (b) by mutual agreement or (c) by his decision to resign after receiving an offer that is not at least equivalent to
his position prior to the change in control, he will be entitled to a lump sum payment equal to one year’s salary plus bonus (under the condition that he
would not be eligible for the other severance benefits described above).Upon termination for any reason, our company may request Dr. Craig to execute a
non-competition agreement for a period of 12 months, whereby Dr. Craig will be entitled to severance pay.

Employment Agreement with Jérôme Bailly

In January 2007, we entered into an employment agreement with Dr. Bailly, which was amended as of January 2018. He is entitled to an annual base salary
set  at  €170,000,  and  variable  compensation,  in  an  amount  up  to  25%  of  his  base  salary,  upon  achievement  of  specified  performance  objectives.  This
variable amount was increased from 25% to 30% of his base salary in January 2019. If a change of control of our company occurs within 24 months of the
granting of bonus shares, Dr. Bailly will be entitled to an amount intended to compensate for the potential loss of compensation in the event of cancellation
of bonus shares granted or for the potential loss of favorable tax treatment in the event of the sale of such shares.

His employment agreements also provide for severance pay in specified situations. In the event of the termination in the absence of gross negligence or
willful misconduct, Mr. Bailly will be entitled to an amount equal to six months’ base salary, plus an additional three months’ base salary for each full year
such executive has worked for us, up to a maximum of 12 months’ base salary in total, including any additional indemnity as provided for by French law.
In  connection  with  a  change  of  control  of  our  company,  if  Mr.  Bailly  is  terminated  in  the  absence  of  gross  negligence  or  willful  misconduct  or  resigns
pursuant to suffering a diminution of the executive’s job duties, or in the event of a mutually agreed termination (rupture conventionnelle) under French
law, Mr. Bailly will be entitled to an amount equal to 12 times the average of monthly remuneration, including bonuses, received during the 12 months
preceding the termination. The payment of the compensations shall be subject to the performance of the following conditions: (i) respect of our company’s
budget and expenditures and (ii) at least one of the following conditions: (a) an agreement of collaboration or a current license, and (b) one product in an
active phase of clinical development by the company.

If a change of control of our company occurs within 24 months of the granting of bonus shares, such executive will be entitled to an amount intended to
compensate for the potential loss of compensation in the event of cancellation of bonus shares granted or for the potential loss of favorable tax treatment in
the event of the sale of such shares, in the context of this change of control.

His employment agreement also provides for a 18-month non-compete clause, whereby Mr. Bailly is entitled to an amount equal to 33% of his average
monthly remuneration over the last three months.

Other Arrangements

We  have  entered  into  other  compensatory  arrangements  with  our  executive  officers,  which  have  been  ratified  by  our  board  of  directors.  The  primary
arrangements are summarized in the table below.

NAME
Gil Beyen

Jérôme Bailly

TAX
ASSISTANCE

X

TRAINING

X

Director and Executive Officer Compensation

See “Item 6.B—Compensation” for information regarding compensation of directors and executive officers.

103

Equity Awards

See “Item. 7A—Major Shareholders” for information regarding equity awards to our executive officers.

Bonus Plans

All our executive officers are entitled to a bonus ranging between 25% and 50% based on yearly objectives determined by our board of directors upon
recommendation of our remuneration and appointments committee.

Indemnification Agreements

We have entered into indemnification agreements with each of our directors and some of our executive officers. See “Item. 6B—Limitations on Liability
and Indemnification Matters.”

Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers or persons controlling us pursuant to the
foregoing provisions, we have been informed that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act
and is therefore unenforceable.

Related-Party Transactions Policy

We comply with French law regarding approval of transactions with related parties. We have adopted a related person transaction policy that sets forth our
procedures for the identification, review, consideration and approval or ratification of related person transactions. The policy became effective in November
2017 upon the closing of our global offering and was subsequently amended in March 2020 to meet the new French law requirements arising from Law no.
2019-486 of May 22, 2019 (Pacte law) as described below.

For  purposes  of  our  policy  only,  a  related  person  transaction  is  defined  as  (i)  any  transaction,  arrangement  or  relationship  (or  any  series  of  similar
transactions,  arrangements  or  relationships)  in  which  we  and  any  related  person  are,  were  or  will  be  participants  in  and  the  amount  involved  exceeds
$120,000, or (ii) any agreement or similar transaction under French law which falls within the scope of Article L. 225-38 of the French Commercial Code.
A  related  person  is  any  executive  officer,  director  or  beneficial  owner  of  more  than  5%  of  any  class  of  our  voting  securities,  including  any  of  their
immediate family members and any entity owned or controlled by such persons. Article L. 225-38 of the French Commercial Code covers any agreement
or similar transaction entered into directly or indirectly between (i) the company and a corporate officer, a director, a shareholder holding more than 10% of
the company’s voting rights or, if such shareholder is a corporate entity, its controlling shareholder within the meaning of Article L. 233-3 of the French
Commercial Code or between (ii) the company and another firm if a corporate officer or director of the company is the owner, a fully liable shareholder, a
corporate officer, a director or a member of that other firm’s supervisory board or, more generally, a person in any way involved in its management.

Under the policy, if a transaction has been identified as a related person transaction, including any transaction that was not a related person transaction
when originally consummated or any transaction that was not initially identified as a related person transaction prior to consummation, our management
must  present  information  regarding  the  related  person  transaction  to  our  board  of  directors  for  review,  consideration  and  approval  or  ratification.  The
presentation must include a description of, among other things, the material facts, the interests, direct and indirect, of the related persons, the benefits to us
of the transaction and whether the transaction is on terms that are comparable to the terms available to or from, as the case may be, an unrelated third party
or to or from employees generally. Under the policy, we will collect information that we deem reasonably necessary from each director, executive officer
and, to the extent feasible, significant shareholder to enable us to identify any existing or potential related-person transactions and to effectuate the terms of
the policy. Our General Counsel will conduct an assessment of our related person transactions, notably to determine whether such transactions relate to
current operations and entered into under normal conditions (portant sur des opérations courantes et conclues à des conditions normales), which will be
monitored at least annually by our audit committee.

In addition, under our Code of Business Conduct and Ethics, our employees and directors have an affirmative responsibility to disclose any transaction or
relationship that reasonably could be expected to give rise to a conflict of interest.

In considering related person transactions, our board of directors will take into account the relevant available facts and circumstances including, but not
limited to:

•

•

the risks, costs and benefits to us;

the impact on a director’s independence in the event that the related person is a director, immediate family member of a director or an entity with
which a director is affiliated;

104

•

•

the availability of other sources for comparable services or products; and

the terms available to or from, as the case may be, unrelated third parties or to or from employees generally.

The policy requires that, in determining whether to approve, ratify or reject a related person transaction, our board of directors must consider, in light of
known circumstances, whether the transaction is in, or is not inconsistent with, our best interests and those of our shareholders, as our board of directors
determines in the good faith exercise of its discretion.

7.C.Interests of Experts and Counsel.

Not applicable.

Item 8. Financial Information

8.A.Consolidated Statements and Other Financial Information.

Consolidated Financial Statements

Our consolidated financial statements are included as part of this Annual Report, starting at page F-1.

Dividend Distribution Policy

We  have  never  declared  or  paid  any  cash  dividends  on  our  ordinary  shares.  We  do  not  anticipate  paying  cash  dividends  on  our  equity  securities  in  the
foreseeable future and intend to retain all available funds and any future earnings for use in the operation and expansion of our business, given our state of
development.

Subject to the requirements of French law and our bylaws, dividends may only be distributed from our distributable profits, plus any amounts held in our
available reserves which are reserves other than legal and statutory and revaluation surplus. See “Item 10. B—Memorandum and Articles of Association”
for  further  details  on  the  limitations  on  our  ability  to  declare  and  pay  dividends.  Dividend  distributions,  if  any  in  the  future,  will  be  made  in  euros  and
converted into U.S. dollars with respect to the ADSs, as provided in the amended and restated deposit agreement.

Legal Proceedings

From time to time we may become involved in legal proceedings or be subject to claims arising in the ordinary course of our business. We are not presently
a party to any legal proceedings that, if determined adversely to us, would individually or taken together have a material adverse effect on our business,
results  of  operations,  financial  condition  or  cash  flows.  Regardless  of  the  outcome,  litigation  can  have  an  adverse  impact  on  us  because  of  defense  and
settlement costs, diversion of management resources and other factors.

8.B.Significant Changes.

Not applicable.

Item 9. The Offer and Listing.

9.A.Offer and Listing Details.

Our  ADSs  have  been  listed  on  the  Nasdaq  Global  Select  Market  under  the  symbol  “ERYP”  since  November  10,  2017.  Our  ordinary  shares  have  been
trading on Euronext Paris under the symbol “ERYP” since May 7, 2013.

9.B.Plan of Distribution.

Not applicable.

9.C.Markets.

Our ADSs have been listed on Nasdaq under the symbol “ERYP” since November 10, 2017. Our ordinary shares have been listed on Euronext Paris under
the symbol “ERYP” since May 7, 2013.

9.D.Selling Shareholders.

Not applicable.

105

9.E.Dilution.

Not applicable.

9.F. Expenses of the Issue.

Not applicable.

Item 10.Additional Information.

10.A.

Share Capital.

Not applicable.

10.B. Memorandum and Articles of Association.

Corporate Purpose (Article 3 of the Bylaws)

The Company’s corporate purpose in France and abroad includes the research, manufacturing, importation, distribution and marketing of investigational
drugs, devices and medical equipment, and the provision of advisory services associated with these activities. The Company is authorized to engage in all
financial, commercial, industrial, civil, property or security-related transactions that directly or indirectly relate to accomplishing the purposes stated above.

The Company may act directly or indirectly and do all these operations in all countries, for or on behalf of third parties, either alone or with partnership
with third parties, association, group or creation of new companies, contribution, sponsorship, subscription, purchase of shares or rights, mergers, alliances,
undeclared partnership or taking or giving in lease or in management of all property and rights or otherwise.

Directors (Articles 17-22 of the Bylaws)

Duties of the Board. Except for powers given to the Company’s shareholders by law and within the limit of the corporate purpose, the Company’s board of
directors is responsible for all matters relating to the successful operations of the Company, including but not limited to, social and environmental issues
associated with the Company’s activities, and, through its resolutions, governs matters involving the company.

Appointment and Term. The Company’s board of directors must be composed of at least three members, but may not exceed 18 members, subject to the
dispensation established by law in the event of merger. In appointing and electing directors, the Company seeks a balanced representation of women and
men. The term of a director is 3 years, and directors may be re-elected at the Company’s annual ordinary share meetings; however, a director over the age
of 75 may not be appointed if such appointment would result in the number of directors over the age of 75 constituting more than one-third of the board.
The number of directors who are also the Company’s employees cannot exceed one-third of the board. Directors may be natural persons or legal entities
except for the chairman of the board who must be a natural person. Legal entities appointed to the board must designate a permanent representative. If a
director dies or resigns between annual meetings, the board may appoint a temporary director to fill the vacancy, subject to ratification at the next ordinary
general meeting, or, if such vacancy results in a number of directors below three, the board must call an ordinary general meeting to fill the vacancy. If a
director is absent at more than four consecutive meetings or placed with guardians, he or she will be deemed to have automatically resigned.

Organization. The board must elect a chairman from among the board members. The chairman must be a natural person, age 75 or younger, and may be
removed by the board at any time. The board may also elect a natural person as vice president to preside in the chairman’s absence and may designate up to
two non-voting board observers.

Deliberations. At least half of the number of directors in office must be present to constitute a quorum. Decisions are made by a majority of the directors
present  or  represented  and,  if  there  is  a  tie,  the  vote  of  the  chairman  will  carry  the  decision.  Meetings  may  be  held  as  often  as  required;  however,  the
chairman is required to call a meeting with a determined agenda upon the request of at least one-third of the directors if the board has not met for more than
two months. French law and the Company’s charter and bylaws allow directors to attend meetings in person or, to the extent permitted by applicable law
and with specified exceptions in the Company’s bylaws, by videoconference or other telecommunications arrangements. The board of directors can also
make decisions by way of written consultation under the conditions provided by law.

Directors’  Voting  Powers  on  Proposal,  Arrangement  or  Contract  in  which  any  Director  is  Materially  Interested.  Under  French  law,  any  agreement
entered into, directly or through an intermediary, between the Company and any director that is not entered into in the ordinary course of the Company’s
business and upon standard market terms is subject to the prior authorization of the board of directors. The interested director cannot vote on such decision.
The same provision applies to agreements between the Company and

106

another company, except where such company is the Company’s wholly owned subsidiary, if one of the Company’s directors is the owner or a general
partner, manager, director, general manager or member of the executive or supervisory board of the other company, as well as to agreements in which one
of the Company’s directors has an indirect interest.

Directors’ Compensation. Director compensation for attendance at board meetings is determined at the annual ordinary general meeting. The general
meeting may allocate an annual fixed sum and the board of directors allocates this sum among its members as it sees fit. In addition, the board of directors
may allocate exceptional compensation (rémunération exceptionnelle) for missions or mandates entrusted to its members, for example as member or chair
of one or more board committees, this remuneration is subject to the provisions regarding related-parties agreements. At the Company’s combined general
meetings of shareholders held on June 28, 2018, June 21, 2019 and June 26, 2020, shareholders set the total annual attendance fees to be distributed among
non-employee directors at €280 thousand for 2018, €400 thousand for 2019 and €425 thousand for 2020.

Board  of  Directors’  Borrowing  Powers.  There  are  currently  no  limits  imposed  on  the  amounts  of  loans  or  borrowings  that  the  board  of  directors  may
approve.

Directors’ Share Ownership Requirements. The Company’s directors are not required to own any of the Company’s shares.

Shareholder rights

Rights, Preferences and Restrictions Attaching to Ordinary Shares (Articles 9, 16, 30, 33 and 34 of the Bylaws)

Dividends. The Company may only distribute dividends out of the Company’s distributable profits, plus any amounts held in the Company’s reserves that
the shareholders decide to make available for distribution, other than those reserves that are specifically required by law.

“Distributable Profits” consist of the Company’s statutory net profit in each fiscal year, calculated in accordance with accounting standards applicable in
France, as increased or reduced by any profit or loss carried forward from prior years, less any contributions to the reserve accounts pursuant to French law.

Legal Reserve. Pursuant to French law, the Company must allocate 5% of the Company’s statutory net profit for each year to the Company’s legal reserve
fund before dividends may be paid with respect to that year. Funds must be allocated until the amount in the legal reserve is equal to 10% of the aggregate
par value of the issued and outstanding share capital.

Approval of Dividends. Pursuant to French law, the Company’s board of directors may propose a dividend for approval by the shareholders at the annual
ordinary general meeting.

Upon recommendation of the Company’s board of directors, the Company’s shareholders may decide to allocate all or part of any distributable profits to
special or general reserves, to carry them forward to the next fiscal year as retained earnings or to allocate them to the shareholders as dividends. However,
dividends may not be distributed when the Company’s net assets are or would become as a result of such distribution lower than the amount of the share
capital plus the amount of the legal reserves which, under French law, may not be distributed to shareholders. The amount of the Company’s share capital
plus the amount of the Company’s legal reserves which may not be distributed was equal to €1,795,611.50 at June 26, 2020.

The Company’s board of directors may distribute interim dividends after the end of the fiscal year but before the approval of the financial statements for the
relevant  fiscal  year  when  the  interim  balance  sheet,  established  during  such  year  and  certified  by  an  auditor,  reflects  that  the  Company  has  earned
distributable profits since the close of the last financial year, after recognizing the necessary depreciation and provisions and after deducting prior losses, if
any, and the sums to be allocated to reserves, as required by law or the bylaws, and including any retained earnings. The amount of such interim dividends
may not exceed the amount of the profit so defined.

Distribution  of  Dividends.  Dividends  are  distributed  to  shareholders  pro  rata  according  to  their  respective  holdings  of  shares.  In  the  case  of  interim
dividends,  distributions  are  made  to  shareholders  on  the  date  set  by  the  Company’s  board  of  directors  during  the  meeting  in  which  the  distribution  of
interim dividends is approved. The actual dividend payment date is decided by the shareholders at an ordinary general shareholders’ meeting or by the
Company’s board of directors in the absence of such a decision by the shareholders. Shareholders that own shares on the actual payment date are entitled to
the dividend.

Shareholders  may  be  granted  an  option  to  receive  dividends  in  cash  or  in  shares,  in  accordance  with  legal  conditions.  The  conditions  for  payment  of
dividends in cash shall be set at the shareholders’ meeting or, failing this, by the board of directors.

107

Timing of Payment. Pursuant to French law, dividends must be paid within a maximum of nine months after the close of the relevant fiscal year, unless
extended by court order. Dividends not claimed within five years after the payment date shall be deemed to expire and revert to the French state.

Voting Rights. Each share shall entitle its holder to vote and be represented in the shareholders’ meetings in accordance with the provisions of French law
and  of  the  Company’s  bylaws.  Ownership  of  one  share  implies,  ipso  jure,  adherence  to  the  Company’s  bylaws  and  the  decisions  of  the  shareholders’
meeting.

In general, each shareholder is entitled to one vote per share at any general shareholders’ meeting. Pursuant to the Company’s bylaws, however, a double
voting right is attached to each registered share which is held in the name of the same shareholder for at least two years. Under French law, ordinary bearer
shares are not eligible for double voting rights. Purchasers of ADSs or of ordinary shares deposited with the depositary to receive ADSs, will be unlikely to
meet the requirements to have double voting rights.

Under  French  law,  treasury  shares  or  shares  held  by  entities  controlled  by  the  Company  are  not  entitled  to  voting  rights  and  do  not  count  for  quorum
purposes.

Rights to Share in the Company’s Profit. Each share entitles its holder to a portion of the corporate profits and assets proportional to the amount of share
capital represented thereby.

Rights to Share in the Surplus in the Event of Liquidation. If the Company is liquidated, any assets remaining after payment of the debts, liquidation
expenses and all of the remaining obligations will first be used to repay in full the par value of the Company’s shares. Any surplus will be distributed pro
rata among shareholders in proportion to the number of shares respectively held by them, taking into account, where applicable, of the rights attached to
shares of different classes.

Repurchase and Redemption of Shares. Under French law, the Company may acquire its own shares. Such acquisition may be challenged on the ground of
market abuse regulations. However, Regulation (EU) No. 596/2014 of April 16, 2014 provides for safe harbor exemptions when the acquisition is made for
one of the following purposes:

• to decrease the Company’s share capital, provided that such a decision is not driven by losses and that a purchase offer is made to all shareholders
on  a  pro  rata  basis,  with  the  approval  of  the  shareholders  at  an  extraordinary  general  meeting;  in  this  case,  the  shares  repurchased  must  be
cancelled within one month from the expiry of the purchase offer;

• to meet obligations arising from debt securities that are exchangeable into equity instruments;

•  to  provide  shares  for  distribution  to  employees  or  managers  under  a  profit-sharing,  free  share  or  share  option  plan;  in  this  case  the  shares

repurchased must be distributed within 12 months from their repurchase failing which they must be cancelled; or

• the Company benefit from a simple exemption when the acquisition is made under a liquidity contract complying with the general regulations of,

and market practices accepted by the French Financial Markets Authority (AMF).

All other purposes, and especially share buy-backs made for external growth operations in pursuance of Article L. 20-10-62 of the French Commercial
Code, while not forbidden, must be pursued in strict compliance of market manipulation and insider dealing rules.

Under the Market Abuse Regulation 596/2014 of August 16, 2014 (MAR) and in accordance with the General Regulations of the AMF, a corporation shall
report  to  the  competent  authority  of  the  trading  value  on  which  the  shares  have  been  admitted  to  trading  or  are  traded,  no  later  than  by  the  end  of  the
seventh daily market session following the date of the execution of the transaction, all the transactions relating to the buy-back program, in a detailed form
and in an aggregated form.

No  such  repurchase  of  shares  may  result  in  the  Company  holding,  directly  or  through  a  person  acting  on  the  Company’s  behalf,  more  than  10%  of  the
Company’s issued share capital. Shares repurchased by the Company continue to be deemed “issued” under French law but are not entitled to dividends or
voting rights so long as the Company holds them directly or indirectly, and the Company may not exercise the preemptive rights attached to them.

Sinking Fund Provisions. The Company’s bylaws do not provide for any sinking fund provisions.

Liability to Further Capital Calls. Shareholders are liable for corporate liabilities only up to the par value of the shares they hold; they are not liable to
further capital calls.

Requirements  for  Holdings  Exceeding  Certain  Percentages.  None,  except  as  described  below  under  the  sections  of  this  exhibit  titled  “Declaration  of
Crossing of Ownership Thresholds (Article 9 of the Bylaws)” and “Form, Holding and Transfer of Shares (Articles 13 and 15 of the Bylaws)—Ownership
of Shares by Non-French Persons.”

108

Actions Necessary to Modify Shareholders’ Rights

Shareholders’  rights  may  be  modified  as  allowed  by  French  law.  Only  the  extraordinary  shareholders’  meeting  is  authorized  to  amend  any  and  all
provisions of the Company’s bylaws. It may not, however, increase shareholder commitments without the prior approval of each shareholder.

Special Voting Rights of Warrant Holders

Under French law, the holders of warrants of the same class (i.e., warrants that were issued at the same time and with the same rights), including founder’s
warrants, are entitled to vote as a separate class at a general meeting of that class of warrant holders under certain circumstances, principally in connection
with any proposed modification of the terms and conditions of the class of warrants or any proposed issuance of preferred shares or any modification of the
rights of any outstanding class or series of preferred shares.

Rules for Admission to and Calling Annual Shareholders’ Meetings and Extraordinary Shareholders’ Meetings (Section IV of the Bylaws)

Access  to,  Participation  in  and  Voting  Rights  at  Shareholders’  Meetings.  Shareholders’  meetings  are  composed  of  all  shareholders,  regardless  of  the
number of shares they hold. Each shareholder has the right to attend the meetings and participate in the discussions (1) personally; (2) by granting proxy to
any individual or legal entity of his choosing; (3) by sending a proxy to the Company without indication of the mandate; (4) by voting by correspondence;
or  (5)  at  the  option  of  the  board  of  directors  at  the  time  the  meeting  is  called,  by  videoconference  or  another  means  of  telecommunication,  including
internet,  in  accordance  with  applicable  laws  that  allow  identification.  The  board  of  directors  organizes,  in  accordance  with  legal  and  regulatory
requirements, the participation and vote of these shareholders at the meeting, assuring, in particular, the effectiveness of the means of identification.

Participation in shareholders’ general meetings, in any form whatsoever, is subject to registration or registration of shares under the conditions and time
limits provided for applicable laws.

The final date for returning voting ballots by correspondence is set by the board of directors and disclosed in the notice of meeting published in the French
Journal of Mandatory Statutory Notices, or BALO (Bulletin des Annonces Légales Obligatoires). This date cannot be earlier than three days prior to the
meeting unless otherwise provided in the bylaws. The Company’s bylaws provide that the board of directors has the option to accept the voting ballots by
correspondence beyond the limit set by applicable laws.

A shareholder who has voted by correspondence will no longer be able to participate directly in the meeting or to be represented. In the case of returning
the proxy form and the voting by correspondence form, the proxy form is taken into account, subject to the votes cast in the voting by correspondence
form.

A shareholder may be represented at meetings by any individual or legal entity by means of a proxy form which the Company sends to such shareholder
either at the shareholder’s request or at the Company’s initiative. A shareholder’s request for a proxy form must be received at the registered office at least
five days before the date of the meeting. The proxy is only valid for a single meeting or for successive meetings convened with the same agenda. It can also
be granted for two meetings, one ordinary, and the other extraordinary, held on the same day or within a period of fifteen days.

A shareholder may vote by correspondence by means of a voting form, which the Company sends to such shareholder either at the shareholder’s request or
at the Company’s initiative, or which the Company includes in an appendix to a proxy voting form under the conditions provided for by current laws and
requirements. A shareholder’s request for a voting form must be received at the registered office at least six days before the date of the meeting. The voting
form is also available on the Company’s website at least 21 days before the date of the meeting. The voting form must be recorded by the Company three
days prior to the shareholders’ meeting, in order to be taken into consideration. The voting by correspondence form addressed by a shareholder is only valid
for a single meeting or for successive meetings convened with the same agenda.

To better understand the voting rights of the ADSs, ADS holders should carefully read the section in this exhibit titled “II. American Depositary Shares—
Voting Rights.” .

Notice of Annual Shareholders’ Meetings. Shareholders’ meetings are convened by the Company’s board of directors, or, failing that, by the statutory
auditors, or by a court appointed agent or liquidator in certain circumstances. Meetings are held at the Company’s registered offices or at any other location
indicated in the meeting announcement (avis de réunion). A meeting announcement is published in the BALO at least 35 days prior to a meeting, as well as
on the Company’s website at least 21 days prior to the meeting. In addition to the particulars relative to the Company, it indicates, notably, the meeting’s
agenda and the draft resolutions that will be presented. The requests for recording of issues or draft resolutions on the agenda must be addressed to the
Company under the conditions provided for in the current legislation.

109

Subject to special legal provisions, the convening notice (avis de convocation) is sent out at least 15 days prior to the date of the meeting, by means of a
notice inserted both in a legal announcement bulletin of the registered office department and in the BALO. Further, the holders of registered shares for at
least a month at the time of the latest of the insertions of the convening notice shall be summoned individually, by regular letter (or by registered letter if
they  request  it  and  include  an  advance  of  expenses)  sent  to  their  last  known  address.  This  notice  may  also  be  transmitted  by  electronic  means  of
telecommunication,  in  lieu  of  any  such  mailing,  to  any  shareholder  requesting  it  beforehand  by  registered  letter  with  acknowledgment  of  receipt  in
accordance with legal and regulatory requirements, specifying his e-mail address. The latter may at any time expressly request by registered letter to the
Company with acknowledgment of receipt that the aforementioned means of telecommunication should be replaced in the future by a mailing.

The convening notice must also indicate the conditions under which the shareholders may vote by correspondence and the places and conditions in which
they can obtain voting forms by mail.

The convening notice may be addressed, where appropriate, with a proxy form and a voting by correspondence form, under the conditions specified in the
Company’s  bylaws,  or  with  a  voting  by  correspondence  form  alone,  under  the  conditions  specified  in  the  Company’s  bylaws.  When  the  shareholders’
meeting cannot deliberate due to the lack of the required quorum, the second meeting must be called at least ten days in advance in the same manner as
used for the first notice.

Agenda and Conduct of Annual Shareholders’ Meetings. The agenda of the shareholders’ meeting shall appear in the convening notice of the meeting
and is set by the author of the notice. The shareholders’ meeting may only deliberate on the items on the agenda except for the removal of directors and the
appointment of their successors which may be put to vote by any shareholder during any shareholders’ meeting. Pursuant to French law and the Company’s
current share capital, one or more shareholders representing 5% of the Company’s share capital may request the inclusion of items or proposed resolutions
on the agenda. Such request must be received at the latest on the 25th day preceding the date of the shareholders’ meeting, and in any event no later than
the 20th day following the date of the shareholders’ meeting announcement.

Shareholders’ meetings shall be chaired by the Chairman of the board of directors or, in his or her absence, by a Deputy Chairman or by a director elected
for  this  purpose.  Failing  that,  the  meeting  itself  shall  elect  a  Chairman.  Vote  counting  shall  be  performed  by  the  two  members  of  the  meeting  who  are
present and accept such duties, who represent, either on their own behalf or as proxies, the greatest number of votes.

Ordinary  Shareholders’  Meeting.  Ordinary  shareholders’  meetings  are  those  meetings  called  to  make  any  and  all  decisions  that  do  not  amend  the
Company’s bylaws. An ordinary meeting shall be convened at least once a year within six months of the end of each fiscal year in order to approve the
annual and consolidated accounts for the relevant fiscal year or, in case of postponement, within the period established by court order. Upon first notice, the
meeting may validly deliberate only if the shareholders present or represented by proxy or voting by mail represent at least one-fifth of the shares entitled
to  vote.  Upon  second  notice,  no  quorum  is  required.  Decisions  are  made  by  a  majority  of  the  votes  cast  by  the  shareholders  present,  or  represented  by
proxy,  or  voting  by  mail.  Abstentions  will  have  the  same  effect  of  a  “no”  vote.  In  addition,  pursuant  to  a  recent  AMF  recommendation,  French  listed
companies may be required to conduct a consultation of the ordinary shareholders meeting prior to the disposal of the majority of their assets, under certain
circumstances. ,

Extraordinary  Shareholders’  Meeting.  The  Company’s  bylaws  may  only  be  amended  by  approval  at  an  extraordinary  shareholders’  meeting.  The
Company’s  bylaws  may  not,  however,  be  amended  to  increase  shareholder  commitments  without  the  approval  of  each  shareholder.  Subject  to  the  legal
provisions governing share capital increases from reserves, profits or share premiums, the resolutions of the extraordinary meeting shall be valid only if the
shareholders present, represented by proxy or voting by mail represent at least one-fourth of all shares entitled to vote upon first notice, or one-fifth upon
second notice. If the latter quorum is not reached, the second meeting may be postponed to a date no later than two months after the date for which it was
initially  called.  Decisions  are  made  by  a  two-thirds  majority  of  the  votes  cast  by  the  shareholders  present,  represented  by  proxy,  or  voting  by  mail.
Abstentions will have the same effect of a “no” vote.

Limitations

Ownership of ADSs or Shares by Non-French Residents

Neither  the  French  Commercial  Code  nor  the  Company’s  bylaws  presently  impose  any  restrictions  on  the  right  of  non-French  residents  or  non-French
shareholders to own and vote shares. However, non-French residents must file a declaration for statistical purposes with the Bank of France (Banque de
France) within twenty working days following the date of certain direct foreign investments in the Company, including any purchase of the Company’s
ADSs. In particular such filings are required in connection with investments exceeding €15,000,000 that lead to the acquisition of at least 10% of the share
capital or voting rights or cross such 10% threshold. Violation of this filing requirement may be sanctioned by five years’ imprisonment and a fine up to
twice the amount of the relevant investment. This amount may be increased fivefold if the violation is made by a legal entity. Moreover, certain foreign

110

investments in companies incorporated under French laws are subject to the prior authorization from the French Minister of the Economy, where all or part
of the target’s business and activity relate to a strategic sector, such as energy, transportation, public health and telecommunications. etc., pursuant to Law
n°2019-486 (and as from April 1, 2020 pursuant to the decree n°2019-1590). The French government has adapted this foreign investment control procedure
in  France  within  the  context  of  the  ongoing  COVID-19  pandemic  in  two  ways:  (i)  the  inclusion,  by  a  Ministerial  order  (arrêté)  of  April  27,  2020,  of
biotechnologies  in  the  list  of  critical  technologies  and  (ii)  the  addition,  by  a  Decree  (décret)  of  July  22,  2020  as  amended  by  Decree  n°2020-1729  of
December  28,  2020,  of  the  threshold  of  10%  of  voting  rights  of  a  company  subject  to  French  law  whose  securities  are  listed  on  a  stock  exchange  as
triggering the control procedure. The Decree of July 22, 2020, as amended by the Decree of December 28, 2020, currently provides that this new 10%
threshold will be effective until December 31, 2020 and a fast-track review procedure for foreign investments exceeding this threshold.

Foreign Exchange Controls

Under  current  French  foreign  exchange  control  regulations  there  are  no  limitations  on  the  amount  of  cash  payments  that  the  Company  may  remit  to
residents of foreign countries. Laws and regulations concerning foreign exchange controls do, however, require that all payments or transfers of funds made
by a French resident to a non-resident such as dividend payments be handled by an accredited intermediary. All registered banks and substantially all credit
institutions in France are accredited intermediaries.

Availability of Preferential Subscription Rights

The  Company’s  shareholders  will  have  the  preferential  subscription  rights  described  under  “Ordinary  Shares—Changes  in  Share  Capital—Preferential
Subscription Right.” Under French law, shareholders have preferential rights to subscribe for cash issues of new shares or other securities giving rights to
acquire additional shares on a pro rata basis. Holders of the Company’s securities in the United States (which may be represented by ADSs) will not be able
to exercise preferential subscription rights for their securities unless a registration statement under the Securities Act is effective with respect to such rights
or an exemption from the registration requirements imposed by the Securities Act is available. The Company may, from time to time, issue new shares or
other  securities  giving  rights  to  acquire  additional  shares  (such  as  warrants)  at  a  time  when  no  registration  statement  is  in  effect  and  no  Securities  Act
exemption is available. If so, holders of the Company’s securities in the United States will be unable to exercise any preferential subscription rights and
their interests will be diluted. The Company is under no obligation to file any registration statement in connection with any issuance of new shares or other
securities. The Company intends to evaluate at the time of any rights offering the costs and potential liabilities associated with registering the rights, as well
as the indirect benefits to the Company of enabling the exercise by holders of shares in the United States and ADS holders of the subscription rights, and
any other factors the Company considers appropriate at the time, and then to make a decision as to whether to register the rights. The Company cannot
guarantee that it will file a registration statement.

For holders of the Company’s ordinary shares represented by ADSs, the depositary may make these rights or other distributions available to ADS holders.
If the depositary does not make the rights available to ADS holders and determines that it is impractical to sell the rights, it may allow these rights to lapse.
In that case, ADS holders will receive no value for them. The section herein titled “II. American Depositary Shares—Dividends and Other Distributions”
explains in detail the depositary’s responsibility in connection with a rights offering. See also “Risk Factors—The right as a holder of ADSs to participate
in any future preferential subscription rights or to elect to receive dividends in shares may be limited, which may cause dilution to the holders of our ADSs”
in the Company’s Annual Report on Form 20-F to which this description is filed as an exhibit.

Provisions Having the Effect of Delaying, Deferring or Preventing a Change in Control of the Company

Provisions contained in the Company’s bylaws and French corporate law could make it more difficult for a third-party to acquire the Company, even if
doing so might be beneficial to the Company’s shareholders. These provisions include the following:

• under French law, the owner of 90% of the share capital or voting rights of a public company listed on a regulated market in a Member State of the
European Union or in a state party to the EEA Agreement, including from the main French Stock Exchange, has the right to force out minority
shareholders following a tender offer made to all shareholders;

• under  French  law,  a  non-resident  of  France  as  well  as  any  French  entity  controlled  by  non-residents  of  France  may  have  to  file  a  declaration  for
statistical purposes with the Bank of France (Banque de France) within 20 working days following the date of certain direct foreign investments in
the Company, including any purchase of the Company’s ADSs. In particular, such filings are required in connection with investments exceeding
€15,000,000  that  lead  to  the  acquisition  of  at  least  10%  of  the  Company’s  share  capital  or  voting  rights  or  cross  such  10%  threshold.  See
“Limitations Affecting Shareholders of a French Company;”

•

under French law, certain investments in a French company relating to certain strategic industries, including biotechnologies, by individuals or
entities not residents in a Member State of the European Union are subject to prior authorization of the

111

Ministry  of  Economy  pursuant  to  Law  n°2019-486  (and  as  from  April  1,  2929  pursuant  to  the  decree  n°2019-1580  of  December  31,  2019,  as
amended by decree (arrêté) of April 27, 2020). See “Limitations Affecting Shareholders of a French Company;”

• a merger (i.e., in a French law context, a share for share exchange following which the Company’s company would be dissolved into the acquiring
entity  and  the  Company’s  shareholders  would  become  shareholders  of  the  acquiring  entity)  of  the  Company’s  company  into  a  company
incorporated in the European Union would require the approval of the Company’s board of directors as well as a two-thirds majority of the votes
cast by the shareholders present, represented by proxy or voting by mail at the relevant meeting;

•  a  merger  of  the  Company’s  company  into  a  company  incorporated  outside  of  the  European  Union  would  require  100%  of  the  Company’s

shareholders to approve it;

•

under French law, a cash merger is treated as a share purchase and would require the consent of each participating shareholder;

•  the  Company’s  shareholders  have  granted  and  may  grant  in  the  future  the  Company’s  board  of  directors  broad  authorizations  to  increase  the
Company’s share capital or to issue additional ordinary shares or other securities, such as warrants, to the Company’s shareholders, the public or
qualified investors, including as a possible defense following the launching of a tender offer for the Company’s shares;

• the Company’s shareholders have preferential subscription rights on a pro rata basis on the issuance by the Company of any additional securities for
cash  or  a  set-off  of  cash  debts,  which  rights  may  only  be  waived  by  the  extraordinary  general  meeting  (by  a  two-thirds  majority  vote)  of  the
Company’s shareholders or on an individual basis by each shareholder;

• the Company’s board of directors has the right to appoint directors to fill a vacancy created by the resignation or death of a director for the remaining
duration of such directors' term of office and subject to the approval by the shareholders of such appointment at the next shareholders’ meeting,
which prevents shareholders from having the sole right to fill vacancies on the Company’s board of directors ;

• the Company’s board of directors can be convened by its chairman or its managing director, if any, or, when no board meeting has been held for more

than two consecutive months, by directors representing at least one third of the total number of directors;

•  the  Company’s  board  of  directors  meetings  can  only  be  regularly  held  if  at  least  half  of  the  directors  attend  either  physically  or  by  way  of

videoconference or teleconference enabling the directors’ identification and ensuring their effective participation in the board’s decisions;

• the Company’s shares are nominative or bearer, if the legislation so permits, according to the shareholder’s choice;

•  approval  of  at  least  a  majority  of  the  votes  cast  by  shareholders  present,  represented  by  a  proxy,  or  voting  by  mail  at  the  relevant  ordinary

shareholders’ general meeting is required to remove directors with or without cause;

• advance notice is required for nominations to the board of directors or for proposing matters to be acted upon at a shareholders’ meeting, except that

a vote to remove and replace a director can be proposed at any shareholders’ meeting without notice;

• the Company’s bylaws can be changed in accordance with applicable laws;

• the crossing of certain thresholds has to be disclosed and can impose certain obligations; see the section of this exhibit titled “Declaration of Crossing

of Ownership Thresholds (Article 9 of the Bylaws);”

•  transfers  of  shares  shall  comply  with  applicable  insider  trading  rules  and  regulations,  and  in  particular  with  the  Market  Abuse  Directive  and

Regulation dated April 16, 2014; and

• pursuant to French law, the sections of the bylaws relating to the number of directors and election and removal of a director from office may only be
modified by a resolution adopted by two-thirds of the votes of the Company’s shareholders present, represented by a proxy or voting by mail at the
meeting.

Disclosure of shareholdings

Declaration of Crossing of Ownership Thresholds (Article 9 of the Bylaws)

Any individual or legal entity referred to in Articles L. 233-7, L. 233-9 and L. 223-10 of the French Commercial Code coming to directly or indirectly own,
or cease to own, alone or in concert, a number of shares representing a fraction of the Company’s capital or voting rights greater or equal to 5%, 10%, 15%,
20%, 25%, 30%, 33.33%, 50%, 66.66%, 90% and 95% shall inform the Company as well as the French Financial Market Authority (AMF) of the total
number of shares and voting rights and of securities giving access to

112

the capital or voting rights that it owns immediately or over time within a period of four trading days from the crossing of the said holding thresholds.

This obligation applies when crossing each of the above-mentioned thresholds in a downward direction.

In the event of failure to declare shares or voting rights exceeding the fraction that should have been declared, such shares shall be deprived of voting rights
at General Meetings of Shareholders for any meeting that would be held until the expiry of a period of two years from the date of regularization of the
notification in accordance with Article L. 233-14 of the French Commercial Code.

In addition, any shareholder, alone or acting in concert, crossing the 10%, 15%, 20% or 25% threshold shall file a declaration with the AMF pursuant to
which it shall expose its intention over the following 6 months, including notably whether it intends to continue acquiring shares of the Company, it intends
to acquire control over the Company, its intended strategy for the Company.

Further, and subject to certain exemptions, any shareholder crossing, alone or acting in concert, the 30% threshold shall file a mandatory public tender offer
with the AMF. Also, any shareholder holding directly or indirectly a number between 30% and 50% of the capital or voting rights and who, in less than 12
consecutive months, increases his/her/its holding of capital or voting rights by at least 1% company’s capital or voting rights, shall file a mandatory public
tender offer.

Differences in Corporate Law
The Company is a société anonyme, or S.A., incorporated under the laws of France. The laws applicable to French sociétés anonymes differ from laws
applicable  to  U.S.  corporations  and  their  shareholders.  Set  forth  below  is  a  summary  of  certain  differences  between  the  provisions  of  the  French
Commercial Code applicable to the Company and the Delaware General Corporation Law relating to shareholders’ rights and protections. This summary
is not intended to be a complete discussion of the respective rights and it is qualified in its entirety by reference to Delaware law and French law. .

FRANCE

DELAWARE

Number of Directors

Director Qualifications

Removal of Directors

Under French law, a société anonyme must have at least three
and may have up to 18 directors. The number of directors is
fixed by or in the manner provided in the bylaws. Since
January 1, 2017, the number of directors of each gender may
not be less than 40%. Any appointment made in violation of
this limit that is not remedied will be null and void.

Under French law, a corporation may prescribe qualifications
for directors under its bylaws. In addition, under French law,
members of a board of directors of a corporation may be legal
entities (with the exception of the chairman of the board), and
such legal entities may designate an individual to represent
them and to act on their behalf at meetings of the board of
directors as well as the deliberations taken by the board
member irregularly appointed.

Under French law, directors may be removed from office,
with or without cause, at any shareholders’ meeting without
notice or justification, by a simple majority vote.

Under Delaware law, a corporation must have at
least one director and the number of directors
shall be fixed by or in the manner provided in
the bylaws.

Under Delaware law, a corporation may
prescribe qualifications for directors under its
certificate of incorporation or bylaws.

Under Delaware law, unless otherwise provided
in the certificate of incorporation, directors may
be removed from office, with or without cause,
by a majority stockholder vote, though in the
case of a corporation whose board is classified,
stockholders may effect such removal only for
cause.

Vacancies on the Board of Directors

Under French law, vacancies on the board of directors
resulting from death or a resignation, provided that at least
three directors remain in office, may be filled by a majority of
the remaining directors pending ratification by the
shareholders by the next shareholders’ meeting.

Under Delaware law, vacancies on a
corporation’s board of directors, including those
caused by an increase in the number of
directors, may be filled by a majority of the
remaining directors.

113

Annual General Meeting

General Meeting

FRANCE

DELAWARE

Under French law, the annual general meeting of shareholders
shall be held at such place, on such date and at such time as
decided each year by the board of directors and notified to the
shareholders in the convening notice of the annual meeting,
within six months after the close of the relevant fiscal year
unless such period is extended by court order.

Under Delaware law, the annual meeting of
stockholders shall be held at such place, on such
date and at such time as may be designated from
time to time by the board of directors or as
provided in the certificate of incorporation or by
the bylaws.

Under French law, general meetings of the shareholders may
be called by the board of directors or, failing that, by the
statutory auditors, or by a court appointed agent (mandataire
ad hoc) or liquidator in certain circumstances, or by the
majority shareholder in capital or voting rights following a
public tender offer or exchange offer or the transfer of a
controlling block on the date decided by the board of directors
or the relevant person

Under Delaware law, special meetings of the
stockholders may be called by the board of
directors or by such person or persons as may
be authorized by the certificate of incorporation
or by the bylaws.

114

Notice of General Meetings

FRANCE

DELAWARE

Under Delaware law, unless otherwise provided
in the certificate of incorporation or bylaws,
written notice of any meeting of the
stockholders must be given to each stockholder
entitled to vote at the meeting not less than 10
nor more than 60 days before the date of the
meeting and shall specify the place, date, hour,
and purpose or purposes of the meeting.

A  meeting  announcement  is  published  in  the  French  Journal
of Mandatory Statutory Notices (BALO) at least 35 days prior
to  a  meeting  and  made  available  on  the  website  of  the
company at least 21
day  prior  to  the  meeting.  Subject  to  limited  exceptions
provided  by  French  law,  additional  convening  notice  is  sent
out at least 15 days prior to the date of the meeting, by means
of a notice inserted both in a legal announcement bulletin of
the registered office department and in the French Journal of
Mandatory  Statutory  Notices  (BALO).  Further,  shareholders
holding registered shares for at least a month at the time latest
insertions  of  the  notices  shall  be  summoned  individually,  by
regular  letter  (or  by  registered  letter  if  they  request  it  and
include  an  advance  of  expenses)  sent  to  their  last  known
address.  This  notice  to  registered  shareholders  may  also  be
transmitted by electronic means of telecommunication, in lieu
of  any  such  mailing,  to  any  shareholder  requesting  it
beforehand  by  registered  letter  with  acknowledgment  of
receipt in accordance with legal and regulatory requirements,
specifying  his  e-mail  address.  When 
the  shareholders’
meeting cannot deliberate due to lack of required quorum, the
second  meeting  must  be  called  at  least  ten  calendar  days  in
advance in the same manner as used for the first notice.

The convening notice shall specify the name of the company,
its  legal  form,  share  capital,  registered  office  address,
registration  number  with  the  French  Registry  of  Commerce
and  Companies,  the  place,  date,  hour  and  agenda  of  the
its  nature  (ordinary  and/or  extraordinary
meeting  and 
meeting).  The  convening  notice  must  also  indicate  the
conditions  under  which  the  shareholders  may  vote  by
correspondence and the places 
and conditions in which they can obtain voting forms by mail
and, as the case may be, the email address to which they may
send written questions.
meeting).  The  convening  notice  must  also  indicate  the
conditions  under  which  the  shareholders  may  vote  by
correspondence  and  the  places  and  conditions  in  which  they
can obtain voting forms by mail and conditions in which they
can obtain voting forms by mail.

115

FRANCE

DELAWARE

law,  at  any  meeting  of
Under  Delaware 
stockholders,  a  stockholder  may  designate
another  person  to  act  for  such  stockholder  by
proxy, but no such proxy shall be voted or acted
upon  after  three  years  from  its  date,  unless  the
proxy provides for a longer period.

Under  Delaware  law,  a  corporation’s  certificate
of incorporation (1) may permit stockholders to
act  by  written  consent  if  such  action  is  signed
by all stockholders, (2) may permit stockholders
to act by written consent signed by stockholders
having  the  minimum  number  of  votes  that
would  be  necessary  to  take  such  action  at  a
meeting  or  (3)  may  prohibit  actions  by  written
consent.

Under Delaware law, unless otherwise provided
in a corporation’s certificate of incorporation, a
stockholder  does  not,  by  operation  of  law,
to
possess  preemptive  rights 
additional issuances of the corporation’s stock.

to  subscribe 

Proxy

Each  shareholder  has  the  right  to  attend  the  meetings  and
participate in the discussions (i) personally, or (ii) by granting
proxy to his/her spouse, his/her partner with whom he/she has
entered into a civil union or to another shareholder or to any
individual or legal entity of his choosing; or (iii) by sending a
proxy  to  the  company  without  indication  of  the  mandate  (in
this case, such proxy shall be cast in favor of the resolutions
supported  by  the  board  of  directors),  or  (iv)  by  voting  by
correspondence,  or  (v)  by  videoconference  or  another  means
of telecommunication in accordance with applicable laws that
allow  identification.  The  proxy  is  only  valid  for  a  single
meeting  or  for  successive  meetings  convened  with  the  same
agenda. It can also be granted for two meetings, one ordinary,
and the other extraordinary, held on the same day or within a
period of fifteen days.

Shareholder Action by Written Consent Under French law, shareholders’ action by written consent is

not permitted in a société anonyme.

Preemptive Rights

Under French law, in case of issuance of additional shares or
other  securities  for  cash  or  set-off  against  cash  debts,  the
existing shareholders have preferential
  subscription  rights  to  these  securities  on  a  pro  rata  basis
unless such rights are waived by a two-thirds majority of the
votes  cast  by  the  shareholders  present  at  the  extraordinary
general  meeting  deciding  or  authorizing  the  capital  increase,
voting in person or represented by proxy or voting by mail. In
case  such  rights  have  not  been  waived  by  the  extraordinary
general  meeting,  each  shareholder  may  individually  either
exercise,  assign  or  not  exercise  its  preferential  subscription
rights.  Preferential  subscription  rights  may  only  be  exercised
during the subscription period. In accordance with French law,
the  exercise  period  shall  not  be  less  than  five  trading  days.
Preferential  subscription  rights  are  transferable  during  a
period  equivalent  to  the  subscription  period  but  starting  two
business days prior to the opening of the subscription period
and  ending  two  business  days  prior  to  the  closing  of  the
subscription period.

116

Sources of Dividends

Repurchase of Shares

FRANCE

DELAWARE

Under Delaware law, dividends may be paid by
a Delaware corporation either out of (1) surplus
or (2) in case there is no surplus, out of its net
profits for the fiscal year in which the dividend
is  declared  and/or  the  preceding  fiscal  year,
except  when  the  capital  is  diminished  by
depreciation  in  the  value  of  its  property,  or  by
losses, or otherwise, to an amount less than the
aggregate  amount  of  capital  represented  by
stock  having  a
issued  and  outstanding 
preference on the distribution of assets.

Under  French  law,  dividends  may  only  be  paid  by  a
French société anonyme out of
“distributable  profits,”  plus  any  distributable  reserves  and
“distributable premium” that the shareholders decide to make
available  for  distribution,  other  than  those  reserves  that  are
specifically required by law.
  “Distributable  profits”  consist  of  the  unconsolidated  net
profits  of  the  relevant  corporation  for  each  fiscal  year,  as
increased  or  reduced  by  any  profit  or  loss  carried  forward
from prior years.
“Distributable premium” refers to the contribution paid by the
stockholders  in  addition  to  the  par  value  of  their  shares  for
their  subscription  that  the  stockholders  decide  to  make
available for distribution.
Except in case of a share capital reduction, no distribution can
be made to the stockholders when the net equity is, or would
become,  lower  than  the  amount  of  the  share  capital  plus  the
reserves  which  cannot  be  distributed  in  accordance  with  the
law or the bylaws.

Under Delaware law, a corporation may
generally redeem or repurchase shares of its
stock unless the capital of the corporation is
impaired or such redemption or repurchase
would impair the capital of the corporation.

 to  decrease  its  share  capital  with  the  approval  of  the

 to  meet  obligations  arising  from  debt  securities,  that  are

Under French law, a corporation may acquire its own shares.
Such acquisition may be challenged on the ground of market
abuse  regulations.  However,  the  Market  Abuse  Regulation
596/2014  of  April  16,  2014  (MAR)  provides  for  safe  harbor
exemptions  when  the  acquisition  is  made  for  the  following
purposes:
• 
shareholders at the extraordinary general meeting;
• 
exchangeable into equity instruments; or
• 
 with  a  view  to  distributing  the  relevant  shares  to
employees  or  managers  under  a  profit-sharing,  free  share  or
share option plan.
All other purposes, and especially share buy-backs for
external growth operations by virtue of Article L. 20-10-62 of
the French Commercial Code, while not forbidden, must be
pursued in
strict compliance of market manipulation and insider dealing
rules.
Under  the  Market  Abuse  Regulation  596/2014  of  April  16,
2014 (MAR) and in accordance with the General Regulations
of the French Financial Markets Authority, a corporation shall
report  to  the  competent  authority  of  the  trading  venue  on
which the shares have been admitted to trading or are traded,
no  later  than  by  the  end  of  the  seventh  daily  market  session
following the date of the execution of the transaction, all the
transactions  relating  to  the  buy-back  program,  in  a  detailed
form and in an aggregated form.
No  such  repurchase  of  ordinary  shares  may  result  in  the
company  holding,  directly  or  through  a  person  acting  on  its
behalf, more than 10% of its issues share capital.

117

FRANCE

DELAWARE

Liability of Directors and Officers

Under French law, the bylaws may not include any provisions
limiting the liability of directors. Civil liability of the directors
may be sought for (1) an infringement of laws and regulations
applicable to the company, (2) breach of the bylaws and (3)
management failure.

 any breach of the director’s duty of loyalty

Under Delaware law, a corporation’s certificate
of incorporation may include a provision
eliminating or limiting the personal liability of a
director to the corporation and its stockholders
for damages arising from a breach of fiduciary
duty as a director. However, no provision can
limit the liability of a director for:
• 
to the corporation or its stockholders;
 acts or omissions not in good faith or that
• 
involve intentional misconduct or a knowing
violation of law;
• 
 intentional or negligent payment of unlawful
dividends or stock purchases or redemptions; or
redemptions; or any transaction from which the
director derives an improper personal benefit

Voting Rights

Shareholder Vote on Certain
Transactions

French law provides that, unless otherwise provided in the
bylaws, each shareholder is entitled to one vote for each share
of capital stock held by such shareholder. As from April 2016,
double voting rights are automatically granted to the shares
being registered since more than two years, unless the bylaws
are modified in order to provide otherwise.

Generally, under French law, completion of a merger,
dissolution, sale, lease or exchange of all or substantially all
of a corporation’s assets requires:
 the approval of the board of directors; and
• 
• 
 approval by a two-thirds majority of the votes cast by the
shareholders present, represented by proxy or voting by mail
at the relevant meeting or, in the case of a merger with a non-
EU company, approval of all shareholders of the corporation
(by exception, the extraordinary general meeting of the
acquiring company may delegate to the board authority to
decide a merger-absorption or to determine the terms and
conditions of the merger plan).

Delaware law provides that, unless otherwise
provided in the certificate of incorporation, each
stockholder is entitled to one vote for each share
of capital stock held by such stockholder.

Generally, under Delaware law, unless the
certificate of incorporation provides for the vote
of a larger portion of the stock, completion of a
merger, consolidation, sale, lease or exchange of
all or substantially all of a corporation’s assets
or dissolution requires:
 the approval of the board of directors; and
• 
• 
 approval by the vote of the holders of a
majority of the outstanding stock or, if the
certificate of incorporation provides for more or
less than one vote per share, a majority of the
votes of the outstanding stock of a corporation
entitled to vote on the matter.

118

                
FRANCE

DELAWARE

Dissent or Dissenters’ Appraisal Rights

French law does not provide for any such right but provides
that a merger is subject to shareholders’ approval by a two-
thirds majority vote as stated above.

Under Delaware law, a holder of shares of any
class or series has the right, in specified
circumstances, to dissent from a merger or
consolidation by demanding payment in cash
for the stockholder’s shares equal to the fair
value of those shares, as determined by the
Delaware Chancery Court in an action timely
brought by the corporation or a dissenting
stockholder. Delaware law grants these
appraisal rights only in the case of mergers or
consolidations and not in the case of a sale or
transfer of assets or a purchase of assets for
stock. Further, no appraisal rights are available
for shares of any class or series that is listed on
a national securities exchange or held of record
by more than 2,000 stockholders, unless the
agreement of merger or consolidation requires
the holders to accept for their shares anything
other than:
• 
• 
are either listed on a national securities
exchange or held of record by more than 2,000
stockholders;
• 
 cash in lieu of fractional shares of the stock
described in the two preceding bullet points; or
• 
In addition, appraisal rights are not available to
holders of shares of the surviving corporation in
specified mergers that do not require the vote of
the stockholders of the surviving corporation.

 shares of stock of the surviving corporation;
 shares of stock of another corporation that

 any combination of the above.

Standard of Conduct for Directors

French law does not contain specific provisions setting forth
the standard of conduct of a director. However, directors have
a duty to act without self-interest, on a well-informed basis
and they cannot make any decision against a corporation’s
corporate interest (intérêt social). In addition, directors shall
take into account social and environmental issues arising out
of the company’s activity.

Delaware law does not contain specific
provisions setting forth the standard of conduct
of a director. The scope of the fiduciary duties
of directors is generally determined by the
courts of the State of Delaware. In general,
directors have a duty to act without self-interest,
on a well-informed basis and in a manner they
reasonably believe to be in the best interest of
the stockholders.

119

FRANCE

DELAWARE

Shareholder Suits

Amendment of Bylaws

French law provides that a shareholder, or a group of
shareholders, may initiate a legal action to seek
indemnification from the directors of a corporation in the
corporation’s interest if it fails to bring such legal action itself.
If so, any damages awarded by the court are paid to the
corporation and any legal fees relating to such action may be
borne by the relevant shareholder or the group of
shareholders.
The plaintiff must remain a shareholder through the duration
of the legal action.
There is no other case where shareholders may initiate a
derivative action to enforce a right of a corporation.
A shareholder may alternatively or cumulatively bring
individual legal action against the directors, provided he has
suffered distinct damages from those suffered by the
corporation. In this case, any damages awarded by the court
are paid to the relevant shareholder.

Under French law, only the extraordinary shareholders’
meeting is authorized to adopt or amend the bylaws.
However, the board of directors is authorized to (i) modify the
bylaws as a result of a decision to move the company’s
registered office and (ii) to bring to the bylaws any
modification rendered necessary by an amendment to an
applicable law or regulation if the board of directors has been
prior authorized by the extraordinary shareholders meeting for
this purpose, and subject, in both cases, to ratification by the
next extraordinary shareholders’ meeting.

Under Delaware law, a stockholder may initiate
a derivative action to enforce a right of a
corporation if the corporation fails to enforce
the right itself. The complaint must:
• 
 state that the plaintiff was a stockholder at
the time of the transaction of which the plaintiff
complains or that the plaintiff’s shares thereafter
devolved on the plaintiff by operation of law;
and
• 
the plaintiff to obtain the action the plaintiff
desires from the directors and the reasons for
the plaintiff’s failure to obtain the action; or
• 
Additionally, the plaintiff must remain a
stockholder through the duration of the
derivative suit. The action will not be dismissed
or compromised without the approval of the
Delaware Court of Chancery.

 allege with particularity the efforts made by

 state the reasons for not making the effort.

Under Delaware law, the stockholders entitled
to vote have the power to adopt, amend or
repeal the bylaws of the corporation. A
corporation may also confer, in its certificate of
incorporation, that power upon the board of
directors.

Changes in Share Capital

Increases  in  Share  Capital  (Article  10  of  the  Bylaws).  Pursuant  to  French  law,  the  Company’s  share  capital  may  be  increased  only  with  shareholders’
approval  at  an  extraordinary  general  shareholders’  meeting  following  the  recommendation  of  the  Company’s  board  of  directors.  The  shareholders  may
delegate to the Company’s board of directors either the authority (délégation de compétence) or the power (délégation de pouvoir) to carry out any increase
in share capital.

Increases in the Company’s share capital may be effected by:

• issuing additional shares;

• increasing the par value of existing shares;

• creating a new class of equity securities; and

• exercising the rights attached to securities giving access to the share capital.

Increases in share capital by issuing additional securities may be effected through one or a combination of the following:

• in consideration for cash;

• in consideration for assets contributed in kind;

• through an exchange offer;

• by conversion of previously issued debt instruments;

120

• by capitalization of profits, reserves or share premium; and

• subject to certain conditions, by way of offset against debt incurred by the Company.

Decisions  to  increase  the  share  capital  through  the  capitalization  of  reserves,  profits  and/or  share  premium  require  shareholders’  approval  at  an
extraordinary general shareholders’ meeting, acting under the quorum and majority requirements applicable to ordinary shareholders’ meetings. Increases
effected by an increase in the par value of shares require unanimous approval of the shareholders, unless effected by capitalization of reserves, profits or
share  premium.  All  other  capital  increases  require  shareholders’  approval  at  an  extraordinary  general  shareholders’  meeting  acting  under  the  regular
quorum and majority requirements for such meetings.

Reduction in Share Capital.  Pursuant  to  French  law,  any  reduction  in  the  Company’s  share  capital  requires  shareholders’  approval  at  an  extraordinary
general shareholders’ meeting following the recommendation of the Company’s board of directors. The share capital may be reduced either by decreasing
the  par  value  of  the  outstanding  shares  or  by  reducing  the  number  of  outstanding  shares.  The  number  of  outstanding  shares  may  be  reduced  by  the
repurchase and cancellation of shares. Holders of each class of shares must be treated equally unless each affected shareholder agrees otherwise.

Preferential Subscription Right. According to French law, if the Company issues additional securities for cash, current shareholders will have preferential
subscription rights to these securities on a pro rata basis. Preferential subscription rights entitle the individual or entity that holds them to subscribe pro
rata based on the number of shares held by them to the issuance of any securities increasing, or that may result in an increase of, the Company’s share
capital by means of a cash payment or a set-off of cash debts. The preferential subscription rights are transferable during the subscription period relating to
a particular offering.

Pursuant to recent legislation that went into effect on October 1, 2016, the preferential subscription rights will be transferable during a period starting two
days prior to the opening of the subscription period and ending two days prior to the closing of the subscription period.

The preferential subscription rights with respect to any particular offering may be waived at an extraordinary general meeting by a two-thirds vote of the
Company’s shareholders or individually by each shareholder. The Company’s board of directors and its independent auditors are required by French law to
present reports to the shareholders’ meeting that specifically address any proposal to waive the preferential subscription rights.

In  the  future,  to  the  extent  permitted  under  French  law,  the  Company  may  seek  shareholder  approval  to  waive  preferential  subscription  rights  at  an
extraordinary  general  shareholders’  meeting  in  order  to  authorize  the  board  of  directors  to  issue  additional  shares  and/or  other  securities  convertible  or
exchangeable into shares.

Listing

Our ADSs are listed on the Nasdaq Global Select Market under the symbol “ERYP.” Our ordinary shares are listed on Euronext Paris under the symbol
“ERYP.”

Transfer Agent and Registrar

The  transfer  agent  and  registrar  for  our  ADSs  is  The  Bank  of  New  York  Mellon.  Our  share  register  for  our  ordinary  shares  is  maintained  by  Société
Générale. The share register reflects only record owners of our ordinary shares. Holders of our ADSs are not treated as our shareholders and their names
are therefore not entered in our share register. The depositary, the custodian or their nominees are the holder of the shares underlying our ADSs. Holders of
our  ADSs  have  a  right  to  receive  the  ordinary  shares  underlying  their  ADSs.  For  discussion  on  our  ADSs  and  ADS  holder  rights,  see  “Description  of
American Depositary Shares” in this prospectus.

LIMITATIONS AFFECTING SHAREHOLDERS OF A FRENCH COMPANY

Ownership of ADSs or Shares by Non-French Residents
Neither the French Commercial Code nor our bylaws presently impose any restrictions on the right of non-French residents or non-French shareholders to
own and vote shares. However, non-French residents must file a declaration for statistical purposes with the Bank of France (Banque de France) within
twenty working days following the date of certain direct foreign investments in us, including any purchase of our ADSs. In particular such filings are
required in connection with investments exceeding €15,000,000 that lead to the acquisition of at least 10% of the share capital or voting rights or cross such
10% threshold. Violation of this filing requirement may be sanctioned by five years’ imprisonment and a fine up to twice the amount of the relevant
investment. This amount may be increased fivefold if the violation is made by a legal entity. Moreover, certain foreign investments in companies
incorporated under French laws are subject to the prior authorization from the French Minister of the Economy, where all or part of the target’s business
and activity relate to a strategic sector, such as energy, transportation, public health, telecommunications, etc.,

121

Foreign Exchange Controls

Under  current  French  foreign  exchange  control  regulations  there  are  no  limitations  on  the  amount  of  cash  payments  that  we  may  remit  to  residents  of
foreign  countries.  Laws  and  regulations  concerning  foreign  exchange  controls  do,  however,  require  that  all  payments  or  transfers  of  funds  made  by  a
French  resident  to  a  non-resident  such  as  dividend  payments  be  handled  by  an  accredited  intermediary.  All  registered  banks  and  substantially  all  credit
institutions in France are accredited intermediaries.

Availability of Preferential Subscription Rights

Our shareholders will have the preferential subscription rights described under “Description of Share Capital—Key Provisions of Our Bylaws and French
Law Affecting Our Ordinary Shares—Changes in Share Capital—Preferential Subscription Right.” Under French law, shareholders have preferential rights
to subscribe for cash issues of new shares or other securities giving rights to acquire additional shares on a pro rata basis. Holders of our securities in the
United  States  (which  may  be  represented  by  ADSs)  will  not  be  able  to  exercise  preferential  subscription  rights  for  their  securities  unless  a  registration
statement under the Securities Act is effective with respect to such rights or an exemption from the registration requirements imposed by the Securities Act
is available. We may, from time to time, issue new shares or other securities giving rights to acquire additional shares (such as warrants) at a time when no
registration statement is in effect and no Securities Act exemption is available. If so, holders of our securities in the United States will be unable to exercise
any preferential subscription rights and their interests will be diluted. We are under no obligation to file any registration statement in connection with any
issuance  of  new  shares  or  other  securities.  We  intend  to  evaluate  at  the  time  of  any  rights  offering  the  costs  and  potential  liabilities  associated  with
registering  the  rights,  as  well  as  the  indirect  benefits  to  us  of  enabling  the  exercise  by  holders  of  shares  in  the  United  States  and  ADS  holders  of  the
subscription rights, and any other factors we consider appropriate at the time, and then to make a decision as to whether to register the rights. We cannot
assure you that we will file a registration statement.

For  holders  of  our  ordinary  shares  represented  by  ADSs,  the  depositary  may  make  these  rights  or  other  distributions  available  to  ADS  holders.  If  the
depositary does not make the rights available to ADS holders and determines that it is impractical to sell the rights, it may allow these rights to lapse. In
that case, ADS holders will receive no value for them. The section of this prospectus titled “Description of American Depositary Shares—Dividends and
Other Distributions” explains in detail the depositary’s responsibility in connection with a rights offering. See also “Risk Factors—The right as a holder of
ADSs to participate in any future preferential subscription rights or to elect to receive dividends in shares may be limited, which may cause dilution to the
holders of our ADSs”.

10.C. Material Contracts.

The section below provides a summary of material contracts, for the two years immediately preceding this Annual Report.

License and Collaboration Agreement with SQZ Biotechnologies

In June 2019, we entered into a license agreement, or the 2019 license agreement, with SQZ Biotechnologies Company, or SQZ, pursuant to which we
granted  SQZ  a  worldwide,  exclusive  license  under  certain  of  our  intellectual  property,  rights  related  to  encapsulation  technology  to  research,  develop,
manufacture,  commercialize  and  otherwise  exploit  products  that  modulate  an  immune  response  that  contain  red  blood  cells  and  one  or  more  antigens,
excluding red blood cell containing products that have a primary mechanism of action that is other than eliciting an antigen-specific immune response or
whose  primary  purpose  is  to  elicit  immune  tolerance  to  certain  enzymes  that  modulate  specified  metabolites.  SQZ  is  solely  responsible  for  future
development and commercialization of licensed products and is required to use commercially reasonable efforts to develop and commercialize at least one
licensed product throughout the world.

In consideration for entering into the 2019 license agreement, SQZ made an initial upfront payment of $1.0 million. Additionally, we are also entitled to
receive  $6.0  million  in  the  aggregate  for  certain  specified  development  and  regulatory  milestones,  $50.0  million  in  the  aggregate  for  certain  specified
commercial milestones, a tiered percentage royalty on annual net sales ranging in the low-single digits, subject to certain specified reductions, and a tiered
percentage royalty on certain sublicensing revenue received by SQZ ranging from low-single digit to low-second decile. Royalties are payable by SQZ on a
licensed  product-by-licensed  product,  indication-by-indication,  and  country-by-country  basis  until  the  expiration  of  the  last  valid  claim  covering  the
licensed product in such country.

During  the  term  of  the  2019  license  agreement  we,  alone  and  with  third  parties,  are  prohibited  from  researching,  developing,  manufacturing,
commercializing or otherwise exploiting products whose primary purpose is to elicit immune tolerance to a therapeutic enzyme, wherein the red blood cells
contain a portion or derivative of the therapeutic enzyme that is sufficient to elicit immune tolerance.

The 2019 license agreement expires on the date of expiration of all royalty obligations. Either party may terminate the 2019 license agreement earlier upon
an uncured material breach of the agreement by the other party or the insolvency of the other party. We may terminate the 2019 license agreement in the
event that SQZ initiates an action challenging the validity or enforceability of the licensed

122

patents. Additionally, SQZ may terminate the 2019 license agreement for any or no reason on country-by-country basis or in its entirety upon specified
written notice.

OCABSA Agreement with Alpha Blue Ocean

We  entered  into  an  agreement  on  June  24,  2020  (the  "OCABSA  Agreement")  allowing  the  issuance  for  the  benefit  of  the  Luxembourg-based  fund
European High Growth Opportunities Securitization Fund, represented by its asset manager European High Growth Opportunities Manco SA., of 1,200
notes warrants (bons d'émission) (the "Notes Warrants" or "BEOCABSA") giving right to convertible notes into new and/or existing shares (the "Notes")
with warrants attached (the "Warrants" and together with the Notes, the "OCABSA"), enabling a potential fund raising of up to EUR 60 million, subject
to the regulatory limit of 20% dilution.

The main characteristics of the securities are described in the table below:

Issuance date :

Characteristics of the issuance

Condition of exercise:

Number of exercised BEOCABSA

June 24, 2020, by decision of the Chief Executive Officer

BEOCABSA

1,200 BEOCABSA issued for free for the benefit of European High Growth Opportunities Securitization
Fund (the "Investor"), pursuant to the 25th resolution of the extraordinary general shareholder's meeting
held on June 21, 2019

by  tranches  until  June  25,  2022,  upon  request  of  the  Company,  it  being  specified  that  the  Investor  shall
have the right to request the issuance of two tranches at any moment.
Any  request  for  a  drawdown  by  the  Company  will  be  subject  to  the  satisfaction  of  certain  conditions
precedent, including (i) the fact that the Company's closing price on Euronext Paris has been 150% higher
than the nominal value of the Company's shares for more than 60 Trading Days prior to the request, or (ii)
the fact that the Company has a number of shares that may be issued corresponding to at least 175% of the
number of shares issuable upon conversion of the outstanding Notes and of the Notes to be issued upon the
drawdown request.
Each exercise of a Note Warrant will give rise to the issuance of 60 Notes with 33,670 Warrants attached
(or of 30 Notes with 16,835 Warrants attached in the event where the Company's capitalization is less than
EUR 50 million for 20 consecutive trading days).

360, by tranches of 6, respectively on July 6, 2020, August 24, 2020, November 17, 2020, December 7,
2020, December 22, 2020 and March 2, 2021 (including 2 tranches issued upon request of the Investor) i.e.
a total amount of EUR 18 million, resulting in the issuance of 360 Notes with 202 020 Warrants attached.

Number of outstanding BEOCABSA

840

Nominal value :

Issuance conditions:

Interest:

Subscription price:

Maturity:

EUR 3,000,000 by tranches (EUR 50,000 by Note)

Notes

upon exercise of the Notes Warrants in one or more tranches of 60 Notes (or 30 Notes in the event where
the Company's capitalization is less than EUR 50 million for 20 consecutive trading days), corresponding
to a total nominal value of EUR 3 million (or EUR 1.5 million in case of issuance of a tranche of 30 Notes)

No interest

98% of their nominal value, i.e. EUR 2,940,000 by tranche (EUR 49,000 by Notes)

12 months from their issuance

123

Conversion into new shares

at the request of the holder, at any time from their issue until their maturity date, at the conversion ratio for
a Note determined by the formula below:
N = Vn / P, where:
"N" is the number of Shares issue upon conversion of the Notes to be granted to the Note holders,
"Vn" is the nominal value of a Note, i.e. EUR 50,000, of which the conversion is requested,
"P" is the conversion price (the "Conversion Price") of a Note, i.e. the higher of (i) 95% of the volume-
weighted average trading price of the Company's shares on Euronext Paris during the 3 consecutive trading
days expiring on the Trading Day immediately preceding the conversion date,(ii)the nominal value of the
share and (iii)the minimum issuance price of a share as provided in the Resolution(or any resolution that
may succeed it), i.e., to date 80% of the volume-weighted average (in the central order book and excluding
off-market block trades) of the Company's share price on Euronext Paris during the 3trading sessions prior
to the pricing of the issue price, it being specified that the theoretical value of the Warrants will be taken
into account and that the Shareholder's Meeting has set at 10 million the maximum number of shares that
may be issued.

Warrants

Number of Warrants to be issued :

Condition of exercise:

Exercise price:

10 % of the nominal value of the issued Notes (i.e. 33,670 by tranche of 60 Notes and 16,835 by tranche of
30 Notes), detached from the OCABSA as from their issuance.

exercise  by  the  holder  for  a  period  of  5  years  from  the  date  of  issue,  each  warrant  giving  the  right  to
subscribe to one new share.

8,91  €,  representing  a  20%  premium  of  the  lowest  volume-weighted  average  price  over  the  reference
period preceding the issuance of the first tranche.

The use of the OCABSA Agreement as of the date of the Annual Report is described in the table below:

Operation

Date

Number of
convertible
notes

Number of shares
issued upon
conversion of
convertible
Notes

Operation

Date

Number of
warrants

Number of
shares issued
upon
conversion of
warrants

Total number of
shares
issued

07/06/2020

Issuance
Conversion
Number of
convertible notes oustanding
Number of shares issued (1)

08/24/2020

Issuance
Conversion
Number of
convertible notes oustanding
Number of shares issued (1)

11/17/2020

Issuance
Conversion
Number of
convertible notes oustanding

60
60
0

60
60
0

Tranche 1

Issuance

07/06/2020

33 670

511 020

Number of warrants outstanding

33 670

511 020 Number of shares issued
Tranche 2

Issuance

08/24/2020

33 670

614 853

Number of warrants outstanding

33 670

614 853 Number of shares issued
Tranche 3 (Resulting from Investor Call No. 1 dated 12 November 2020

60
60
0

475 442

Issuance

11/17/2020

33 670

Number of warrants outstanding

33 670

124

0

0

511 020

614 853

0

0

0

0

475 442

408 163

421 447

42 492
2 473 417
840

Number of
convertible
notes

Number of shares
issued upon
conversion of
convertible
Notes

Operation

Date

Number of
warrants

Number of
shares issued
upon
conversion of
warrants

Total number of
shares
issued

Operation

Date

Number of shares issued (1)

12/07/2020

Issuance
Conversion
Number of
convertible notes oustanding
Number of shares issued (1)

12/22/2020

Issuance
Conversion
Number of
convertible notes oustanding
Number of shares issued (1)

475 442 Number of shares issued
Tranche 4 (Resulting from Investor Call No. 2 dated 4 December 2020)

60
60
0

60
60
0

Issuance

12/07/2020

33 670

408 163

Number of warrants outstanding

33 670

408 163 Number of shares issued
Tranche 5

Issuance

12/22/2020

33 670

421 447

Number of warrants outstanding

33 670

421 447 Number of shares issued
Tranche 6

03/02/2021

Issuance
Conversion
Number of
convertible notes oustanding
Number of shares issued (1)
Number of shares issued upon conversion of convertible Notes and exercise of warrants
Number of note warrants outstanding

60
6
54

Issuance

42 492

42 492 Number of shares issued

03/02/2021

Number of warrants outstanding

33 670

33 670

(1) i.e an average parity of 1 Convertible Note for 8,517 new shares for tranche 1, 10,248 new shares for tranche 2, 7,924 new shares for tranche 3, 6,803
new shares for tranche 4, and 7,024 new shares for tranche 5.

As of the date of the Annual Report, we issued six tranches of €3.0 million (on July 6, 2020, August 24, 2020, November 17, 2020, December 7, 2020,
December  22,  2020  and  March  2,  2021),  for  a  total  amount  of  €18.0  million,  for  which 306 Notes were  converted  and  no  Warrants  were  exercised,  as
described in the table above.

Accordingly,  we  may  decide  to  issue  additional  tranches  up  to  a  maximum  of  €42.0  million  until  June  2022,  subject  to  the  limit  of  20%  dilution,
representing €30.0 million as of the date of this Annual Report based on a share price of €6.63 (closing share price on the day before the date of this Annual
Report). It is specified that this maximum amount is not guaranteed and depends on a number of factors and conditions beyond our control.

We  publish 
content/uploads/2021_03_05_ERY_Suivi_des_actions_OCABSA.pdf).

the  monitoring 

and  update 

relating 

table 

to 

the  OCABSA  Agreement  on  our  website 

(https://erytech.com/wp-

For  additional  information  on  our  material  contracts,  please  see  “Item  4.  Information  on  the  Company,”  “Item  6.  Directors,  Senior  Management  and
Employees,” and “Item 7.B. Related Party Transactions” of this Annual Report on 20-F.

10.D.

Exchange Controls.

Under  current  French  foreign  exchange  control  regulations  there  are  no  limitations  on  the  amount  of  cash  payments  that  we  may  remit  to  residents  of
foreign  countries.  Laws  and  regulations  concerning  foreign  exchange  controls  do,  however,  require  that  all  payments  or  transfers  of  funds  made  by  a
French  resident  to  a  non-resident  such  as  dividend  payments  be  handled  by  an  accredited  intermediary.  All  registered  banks  and  substantially  all  credit
institutions in France are accredited intermediaries.

125

10.E.

Taxation.

The following describes material U.S. federal income tax and French tax considerations relating to the acquisition, ownership and disposition of ADSs by a
U.S. holder (as defined below). This summary does not address all U.S. federal income tax and French tax matters that may be relevant to a particular U.S.
holder.  This  summary  does  not  address  tax  considerations  applicable  to  a  holder  of  ADSs  that  may  be  subject  to  special  tax  rules  including,  without
limitation, the following:

•

•

•

•

•

•

•

•

•

•

•

•

banks, financial institutions or insurance companies;

brokers, dealers or traders in securities, currencies, commodities, or notional principal contracts;

tax-exempt entities or organizations, including an “individual retirement account” or “Roth IRA” as defined in Section 408 or 408A of the Code
(as defined below), respectively;

real estate investment trusts, regulated investment companies or grantor trusts;

persons that hold the ADSs as part of a “hedging,” “integrated,” “wash sale” or “conversion” transaction or as a position in a “straddle” for U.S.
federal income tax purposes;

S corporations;

certain former citizens or long-term residents of the United States;

persons that received ADSs as compensation for the performance of services;

persons acquiring ADSs in connection with a trade or business conducted outside of the United States, including a permanent establishment in
France;

persons subject to Section 451(b) of the Code;

holders that own directly, indirectly, or through attribution 10% or more of the voting power or value of our ADSs and shares or, in the case of the
discussion of French tax consequences, 5% or more of the voting stock or our share capital; and

holders that have a “functional currency” other than the U.S. dollar.

For the purposes of this description, a “U.S. holder” is a beneficial owner of ADSs that is (or is treated as), for U.S. federal income tax purposes:

•

•

•

•

an individual who is a citizen or resident of the United States;

a domestic corporation;

an estate, the income of which is subject to U.S. federal income taxation regardless of its source; or

a trust, if a court within the United States is able to exercise primary supervision over its administration and one or more U.S. persons have the
authority  to  control  all  of  the  substantial  decisions  of  such  trust,  or  if  such  trust  has  a  valid  election  in  effect  under  applicable  U.S.  Treasury
Regulations to be treated as a U.S. person.

If a partnership (or any other entity treated as a partnership for U.S. federal income tax purposes) holds ADSs, the U.S. federal income tax consequences
relating to an investment in the ADSs will depend in part upon the status of the partner and the activities of the partnership. Such a partner or partnership
should  consult  its  tax  advisor  regarding  the  U.S.  federal  income  tax  considerations  of  acquiring,  owning  and  disposing  of  the  ADSs  in  its  particular
circumstances.

The  discussion  in  this  section  is  based  in  part  upon  the  representations  of  the  depositary  and  the  assumption  that  each  obligation  in  the  amended  and
restated deposit agreement and any related agreement will be performed in accordance with its terms.

Persons considering an investment in the ADSs should consult their own tax advisors as to the particular tax consequences applicable to them
relating to the acquisition, ownership and disposition of the ADSs, including the applicability of U.S. federal, state and local tax laws, French tax
laws and other non-U.S. tax laws.

Material French Tax Considerations

The  following  describes  the  material  French  income  tax  consequences  to  U.S.  holders  of  purchasing,  owning  and  disposing  of  our  ADSs  and,  unless
otherwise noted, this discussion is the opinion of Gide Loyrette Nouel A.A.R.P.I, our French tax counsel, insofar as it relates to matters of French tax law
and legal conclusions with respect to those matters.

This discussion does not purport to be a complete analysis or listing of all potential tax effects of the acquisition, ownership or disposition of our ADSs to
any particular investor, and does not discuss tax considerations that arise from rules of general application

126

or that are generally assumed to be known by investors. All of the following is subject to change. Such changes could apply retroactively and could affect
the consequences described below.

The description of the French income tax and wealth tax consequences set forth below is based on the Convention Between the Government of the United
States of America and the Government of the French Republic for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with Respect to
Taxes on Income and Capital of August 31, 1994, or the Treaty, which came into force on December 30, 1995 (as amended by any subsequent protocols,
including the protocol of January 13, 2009), and the tax guidelines issued by the French tax authorities in force as of the date of this Annual Report.

This discussion applies only to investors that are entitled to Treaty benefits under the “Limitation on Benefits” provision contained in the Treaty.

France has recently introduced a comprehensive set of new tax rules applicable to French assets that are held by or in foreign trusts. These rules provide
inter alia for the inclusion of trust assets in the settlor’s net assets for the purpose of applying the French real estate wealth tax, for the application of French
gift and death duties to French assets held in trust, for a specific tax on capital on the French assets of foreign trusts not already subject to the French real
estate  wealth  tax  and  for  a  number  of  French  tax  reporting  and  disclosure  obligations.  The  following  discussion  does  not  address  the  French  tax
consequences applicable to securities (including ADSs) held in trusts. If ADSs are held in trust, the grantor, trustee and beneficiary are urged to consult
their own tax advisor regarding the specific tax consequences of acquiring, owning and disposing of securities (including ADSs).

U.S. holders are urged to consult their own tax advisors regarding the tax consequences of the purchase, ownership and disposition of securities in light of
their particular circumstances, especially with regard to the “Limitations on Benefits” provision.

Estate and Gift Taxes and Transfer Taxes

In  general,  a  transfer  of  securities  by  gift  or  by  reason  of  death  of  a  U.S.  holder  that  would  otherwise  be  subject  to  French  gift  or  inheritance  tax,
respectively,  will  not  be  subject  to  such  French  tax  by  reason  of  the  Convention  between  the  Government  of  the  United  States  of  America  and  the
Government  of  the  French  Republic  for  the  Avoidance  of  Double  Taxation  and  the  Prevention  of  Fiscal  Evasion  with  Respect  to  Taxes  on  Estates,
Inheritances and Gifts, dated November 24, 1978 (as amended by the protocol of December 8, 2004), unless (i) the donor or the transferor is domiciled in
France at the time of making the gift or at the time of his or her death, or (ii) the securities were used in, or held for use in, the conduct of a business
through a permanent establishment or a fixed base in France.

Pursuant to Article 235 ter ZD of the Code général des impôts (French Tax Code, or FTC), purchases of shares or ADSs of a French company listed on a
regulated market of the European Union or on a foreign regulated market formally acknowledged by the French Financial Market Authority (AMF) are
subject to a 0.3% French tax on financial transactions provided that the issuer’s market capitalization exceeds 1 billion euros as of December 1 of the year
preceding the taxation year pursuant to Regulations BOI-ANNEX-000467-23/12/2020 issued on December 23, 2020. The Nasdaq Global Select Market is
not currently acknowledged by the French AMF but this may change in the future. A list of French relevant companies whose market capitalization exceeds
1  billion  euros  as  of  December  1  of  the  year  preceding  the  taxation  year  is  published  annually  and  at  least  once  a  year,  by  the  French  State.  As  at
December 1, 2020, our market capitalization did not exceed 1 billion euros.

Following the global offering, purchases of our securities may be subject to such tax provided that its market capitalization exceeds 1 billion euros and that
the Nasdaq Global Select Market is acknowledged by the French AMF.

In  the  case  where  Article  235  ter  ZD  of  the  FTC  is  not  applicable,  transfers  of  shares  issued  by  a  French  company,  which  is  listed  on  a  regulated  or
organized market within the meaning of the French Financial and Monetary Code, are subject to uncapped registration duties at the rate of 0.1% if the
transfer  is  evidenced  by  a  written  statement  (“acte”)  executed  either  in  France  or  outside  France.  Although  there  is  no  case  law  or  official  guidelines
published by the French tax authorities on this point, transfers of ADSs should remain outside of the scope of the aforementioned 0.1% registration duties.

Tax on Sale or Other Disposition

As  a  matter  of  principle,  under  French  tax  law,  a  U.S.  holder  should  not  be  subject  to  any  French  tax  on  any  capital  gain  from  the  sale,  exchange,
repurchase or redemption by us of ordinary shares or ADSs, provided such U.S. holder is not a French tax resident for French tax purposes and has not held
more than 25% of our dividend rights, known as “droits aux benefices sociaux,” at any time during the preceding five years, either directly or indirectly,
and,  as  relates  to  individuals,  alone  or  with  relatives  (as  an  exception,  a  U.S  holder  resident,  established  or  incorporated  in  a  non-cooperative  State  or
territory as defined in Article 238-0 A of the FTC should be subject to a 75% withholding tax in France on any such capital gain, regardless of the fraction
of the dividend rights it holds). The list of non-cooperative State or territories is published by decree and is in principal updated annually. This list was last
updated on

127

January 6, 2020, and currently includes, in addition to Panama, which was already included in the former version of this list, American Samoa, Anguilla,
the Bahamas, the British Virgin Islands, Fiji, Guam, Oman, Samoa, Seychelles, Trinidad and Tobago, the United States Virgin Islands and Vanuatu. States
referred to in Article 238-0 A 2 bis 2° of the FTC, and thus outside of the scope of Article 125 A III of the FTC, are currently American Samoa, Fiji, Guam,
Oman, Samoa, Trinidad and Tobago and the United States Virgin Islands.

Under application of the Treaty, a U.S. holder who is a U.S. resident for purposes of the Treaty and entitled to Treaty benefit will not be subject to French
tax on any such capital gain unless the ordinary shares or the ADSs form part of the business property of a permanent establishment or fixed base that the
U.S. holder has in France. U.S. holders who own ordinary shares or ADSs through U.S. partnerships that are not resident for Treaty purposes are advised to
consult their own tax advisors regarding their French tax treatment and their eligibility for Treaty benefits in light of their own particular circumstances. A
U.S. holder that is not a U.S. resident for Treaty purposes or is not entitled to Treaty benefit (and in both cases is not resident, established or incorporated in
a non-cooperative State or territory as defined in Article 238-0 A of the FTC) and has held more than 25% of our dividend rights, known as “droits aux
benefices sociaux,” at any time during the preceding five years, either directly or indirectly, and, as relates to individuals, alone or with relatives will be
subject to a levy in France at the rate of 12.8% if such U.S. holder is an individual or 28% for corporate bodies or other legal entities (as from January 1,
2021, to be reduced to 25% as from 2022). Special rules apply to U.S. holders who are residents of more than one country.

Taxation of Dividends

Dividends paid by a French corporation to non-residents of France are generally subject to French withholding tax at a rate of 12.8% when the recipient is
an individual and 26,5% otherwise (the 26,5% rate for legal entities will be reduced to 25% as from 2022). Dividends paid by a French corporation in a
non-cooperative State or territory, as defined in Article 238-0 A of the FTC, will generally be subject to French withholding tax at a rate of 75%. However,
eligible U.S. holders, other than individuals subject to the French withholding tax at a rate of 12.8%, entitled to Treaty benefits under the ‘‘Limitation on
Benefits’’ provision contained in the Treaty who are U.S. residents, as defined pursuant to the provisions of the Treaty, will not be subject to this 26,5% or
75% withholding tax rate, but may be subject to the withholding tax at a reduced rate (as described below).

Under  the  Treaty,  the  rate  of  French  withholding  tax  on  dividends  paid  to  an  eligible  U.S.  holder  who  is  a  U.S.  resident  as  defined  pursuant  to  the
provisions of the Treaty and whose ownership of the ordinary shares or ADSs is not effectively connected with a permanent establishment or fixed base
that such U.S. holder has in France, may be reduced to 15%, or to 5% if such U.S. holder is a corporation and owns directly or indirectly at least 10% of the
share capital of the issuer; such U.S. holder may claim a refund from the French tax authorities of the amount withheld in excess of the Treaty rates of 15%
or 5%, if any.

For U.S. holders that are not individuals but are U.S. residents, as defined pursuant to the provisions of the Treaty, the requirements for eligibility for Treaty
benefits,  including  the  reduced  5%  or  15%  withholding  tax  rates  contained  in  the  ‘‘Limitation  on  Benefits’’  provision  of  the  Treaty,  are  complex,  and
certain technical changes were made to these requirements by the protocol of January 13, 2009. U.S. holders are advised to consult their own tax advisors
regarding their eligibility for Treaty benefits in light of their own particular circumstances. Dividends paid to an eligible U.S. holder may immediately be
subject to the reduced rates of 5% or 15% provided that:

◦

◦

such holder establishes before the date of payment that it is a U.S. resident under the Treaty by completing and providing the depositary with a
treaty form (Form 5000) in accordance with the French guidelines (BOI-INT-DG-20-20-20-20-12/09/2012); or

the depositary or other financial institution managing the securities account in the U.S. of such holder provides the French paying agent with a
document  listing  certain  information  about  the  U.S.  holder  and  its  ordinary  shares  or  ADSs  and  a  certificate  whereby  the  financial  institution
managing  the  U.S.  holder’s  securities  account  in  the  United  States  takes  full  responsibility  for  the  accuracy  of  the  information  provided  in  the
document.

Otherwise,  dividends  paid  to  a  U.S.  holder,  other  than  individuals  subject  to  the  French  withholding  tax  at  a  rate  of  12.8%,  will  be  subject  to  French
withholding tax at the rate of 26,5%, or 75% if paid in a non-cooperative State or territory (as defined in Article 238-0 A of the FTC), and then reduced at a
later date to 5% or 15%, provided that such holder duly completes and provides the French tax authorities with the treaty forms Form 5000 and Form 5001
before December 31 of the second calendar year following the year during which the dividend is paid.

Certain qualifying pension funds and certain other tax-exempt entities are subject to the same general filing requirements as other U.S. holders except that
they may have to supply additional documentation evidencing their entitlement to these benefits.

Form 5000 and Form 5001, together with instructions, will be provided by the depositary to all U.S. holders registered with the depositary. The depositary
will arrange for the filing with the French tax authorities of all such forms properly completed and executed

128

by U.S. holders of ordinary shares or ADSs and returned to the depositary in sufficient time so that they may be filed with the French tax authorities before
the distribution in order to immediately obtain a reduced withholding tax rate. Otherwise, the depositary must withhold tax at the full rate of 26,5% or 75%
as applicable. In that case, the U.S. holders may claim a refund from the French tax authorities of the excess withholding tax.

Since the withholding tax rate applicable under French domestic law to U.S. holders who are individuals does not exceed the cap provided in the Treaty
(i.e. 15%), the 12.8% rate shall apply, without any reduction provided under the Treaty.

Besides,  please  note  that  pursuant  to  Article  235  quater  of  the  FTC  and  under  certain  conditions  (in  particular  reporting  obligations),  a  corporate  U.S.
Holder  which  is  in  a  tax  loss  position  for  the  fiscal  year  during  which  the  dividend  is  received  may  be  entitled  to  a  deferral  regime,  and  obtain  a
withholding tax refund. The tax deferral ends in respect of the first financial year during which this U.S. Holder is in a profit making position, as well as in
the cases set out in Article 235 quater of the FTC.

Real Estate Wealth Tax

On January 1, 2018, the French wealth tax was replaced with a real estate wealth tax (impôt sur la fortune immobilière, or IFI). Individuals holding directly
or indirectly through one or more legal entities real estate assets or rights with a value exceeding €1,300,000 may fall within the scope of the IFI. A general
exclusion applies to real estate assets owned by companies carrying out a commercial or industrial activity when the taxpayer (together with the members
of his/her household) holds directly or indirectly less than 10% of the share capital or voting rights of the company. ADSs owned by a U.S. holder should
not fall within the scope of the IFI provided that such U.S. holder does not own (together with the members of his/her household) directly or indirectly a
shareholding  exceeding  10%  of  the  financial  rights  and  voting  rights  of  our  share  capital.  U.S.  holders  holding  directly  or  indirectly  a  shareholding
exceeding 10% of the financial rights and voting rights of our share capital should seek additional advice.

Material U.S. Federal Income Tax Considerations

This section discusses the material U.S. federal income tax considerations relating to the acquisition, ownership and disposition of ADSs by a U.S. holder
and holds the ADSs as a capital asset. This description does not address the U.S. federal estate, gift, or alternative minimum tax considerations, or any U.S.
state, local, or non-U.S. tax considerations of the acquisition, ownership and disposition of the ADSs.

This  description  is  based  on  the  U.S.  Internal  Revenue  Code  of  1986,  as  amended,  or  the  Code,  existing,  proposed  and  temporary  U.S.  Treasury
Regulations promulgated thereunder and administrative and judicial interpretations thereof, in each case as in effect and available on the date hereof. All
the foregoing is subject to change, which change could apply retroactively, and to differing interpretations, all of which could affect the tax considerations
described below. There can be no assurances that the U.S. Internal Revenue Service, or the IRS, will not take a position different from what is described
below concerning the tax consequences of the acquisition, ownership and disposition of the ADSs or that such a position would not be sustained by a court.
Holders should consult their own tax advisers concerning the U.S. federal, state, local and non-U.S. tax consequences of acquiring, owning and disposing
of the ADSs in their particular circumstances.

In general, and taking into account the earlier assumptions, for U.S. federal income and French tax purposes, a U.S. holder holding ADRs evidencing ADSs
will be treated as the owner of the shares presented by the ADRs. Exchanges of shares for ADRs, and ADRs for shares, generally will not be subject to
U.S. federal income or to French tax.

Passive Foreign Investment Company Considerations. Based on the composition of our gross income, assets, activities and market capitalization in 2020,
the nature of our business and due to fluctuations in our stock price, we believe that we may have been characterized as a PFIC for our taxable year ended
December  31,  2020.  However,  because  our  PFIC  status  is  subject  to  a  number  of  uncertainties  and  it  is  very  early  in  the  year,  neither  we  nor  our  tax
advisors can provide any assurances with respect to our PFIC status for the prior, current, or any future taxable year. Moreover, because the calculation of
the value of our assets may be based in part on the value of our ADSs, the value of which may fluctuate considerably, our PFIC status may change from
year to year and is difficult to predict. A separate determination must be made after the close of each taxable year as to whether we are a PFIC for that year.
As a result, our PFIC status may change from year to year and we have not yet made any determination as to our expected PFIC status for the current year.
Our status as a PFIC will depend on the composition of our income (including whether we receive certain non-refundable grants or subsidies and whether
such amounts and reimbursements of certain refundable research tax credits will constitute gross income for purposes of the PFIC income test) and the
composition and value of our assets, which may be determined in large part by reference to the market value of the ADSs and our ordinary shares, which
may  be  volatile,  from  time  to  time.  Our  status  may  also  depend,  in  part,  on  how  quickly  we  utilize  the  cash  proceeds  from  our  global  offerings  in  our
business. Our U.S. counsel expresses no opinion regarding our conclusions or our expectations regarding our PFIC status.

129

If we are classified as a PFIC, a U.S. holder will be subject to special rules discussed below. If we are classified as a PFIC in any year with respect to which
a U.S. holder owns the ADSs, we will continue to be treated as a PFIC with respect to the ADSs and such U.S. holder in all succeeding years during which
the U.S. holder owns the ADSs, regardless of whether we continue to meet the PFIC tests described below.

We will be classified as a PFIC for U.S. federal income tax purposes in any taxable year in which, after applying certain look-through rules with respect to
the income and assets of our subsidiaries, either: (i) at least 75% of the gross income is “passive income” or (ii) at least 50% of the average quarterly value
of our total gross assets (which would generally be measured by fair market value of our assets, and for which purpose the total value of our assets may be
determined in part by the market value of the ADSs and our ordinary shares, which are subject to change) is attributable to assets that produce “passive
income” or are held for the production of “passive income.”

Passive income for this purpose generally includes dividends, allocations of income with respect to any partnership interest, interest, royalties, rents, gains
from commodities and securities transactions, the excess of gains over losses from the disposition of assets which produce passive income, and includes
amounts derived by reason of the temporary investment of funds raised in offerings of the ADSs. If a non-U.S. corporation owns directly or indirectly at
least 25% by value of the stock of another corporation or the partnership interests in a partnership, the non-U.S. corporation is treated for purposes of the
PFIC tests as owning its proportionate share of the assets of the other corporation or partnership and as receiving directly its proportionate share of the
other corporation’s or partnership’s income.

The market value of our assets may be determined in large part by reference to the market price of the ADSs and our ordinary shares, which is likely to
fluctuate.  In  addition,  the  composition  of  our  income  and  assets  will  be  affected  by  how,  and  how  quickly,  we  use  the  cash  proceeds  from  our  global
offerings in our business. Whether we are a PFIC for any taxable year will depend on our assets and income (including whether we receive certain non-
refundable grants or subsidies and whether such amounts and reimbursements of certain refundable research tax credits will constitute gross income for
purposes of the PFIC income test) in each year, and because this is a factual determination made annually after the end of each taxable year, there can be no
assurance that we will not be considered a PFIC in any taxable year.

If we are a PFIC, and you are a U.S. holder that does not make one of the elections described below, a special tax regime will apply to both (a) any “excess
distribution”  by  us  to  you  (generally,  your  ratable  portion  of  distributions  in  any  year  which  are  greater  than  125%  of  the  average  annual  distribution
received by you in the shorter of the three preceding years or your holding period for the ADSs) and (b) any gain realized on the sale or other disposition of
the ADSs. Under this regime, any excess distribution and realized gain will be treated as ordinary income and will be subject to tax as if (i) the excess
distribution or gain had been realized ratably over your holding period, (ii) the amount deemed realized in each year had been subject to tax in each year of
that holding period at the highest marginal rate for such year (other than income allocated to the current period or any taxable period before we became a
PFIC, which would be subject to tax at the U.S. holder’s regular ordinary income rate for the current year and would not be subject to the interest charge
discussed below), and (iii) the interest charge generally applicable to underpayments of tax had been imposed on the taxes deemed to have been payable in
those years. In addition, dividend distributions made to you will not qualify for the lower rates of taxation applicable to qualified dividends discussed above
under “Distributions.”

Certain elections may alleviate some of the adverse consequences of PFIC status and would result in an alternative treatment of the ADSs. If a U.S. holder
makes a mark-to-market election, the U.S. holder generally will recognize as ordinary income any excess of the fair market value of the ADSs at the end of
each taxable year over their adjusted tax basis, and will recognize an ordinary loss in respect of any excess of the adjusted tax basis of the ADSs over their
fair market value at the end of the taxable year (but only to the extent of the net amount of income previously included as a result of the mark-to-market
election). If a U.S. holder makes the election, the U.S. holder’s tax basis in the ADSs will be adjusted to reflect these income or loss amounts. Any gain
recognized on the sale or other disposition of ADSs in a year when we are a PFIC will be treated as ordinary income and any loss will be treated as an
ordinary  loss  (but  only  to  the  extent  of  the  net  amount  of  income  previously  included  as  a  result  of  the  mark-to-market  election).  The  mark-to-market
election is available only if we are a PFIC and the ADSs are “regularly traded” on a “qualified exchange.” The ADSs will be treated as “regularly traded”
in any calendar year in which more than a de minimis quantity of the ADSs are traded on a qualified exchange on at least 15 days during each calendar
quarter  (subject  to  the  rule  that  trades  that  have  as  one  of  their  principal  purposes  the  meeting  of  the  trading  requirement  as  disregarded).  The  Nasdaq
Global  Select  Market  is  a  qualified  exchange  for  this  purpose  and,  consequently,  if  the  ADSs  are  regularly  traded,  the  mark-to-market  election  will  be
available to a U.S. holder.

If we are a PFIC, we expect to provide investors, upon request, a “PFIC Annual Information Statement” with the information required to allow investors to
make a “qualified electing fund election” or “QEF Election” for United States federal income tax purposes. U.S. holders should consult their tax advisors to
determine  whether  any  of  these  elections  would  be  available  and  if  so,  what  the  consequences  of  the  alternative  treatments  would  be  in  their  particular
circumstances.

130

If a U.S. holder makes a QEF Election with respect to a PFIC, in lieu of the tax consequences described below, the U.S. holder will be subject to current
taxation on its pro rata share of the PFIC’s ordinary earnings and net capital gain for each taxable year that the entity is classified as a PFIC. If a U.S. holder
makes a QEF Election with respect to us, any distributions paid by us out of our earnings and profits that were previously included in the U.S. holder’s
income under the QEF Election will not be taxable to the holder. A U.S. holder will increase its tax basis in its ADSs by an amount equal to any income
included  under  the  QEF  Election  and  will  decrease  its  tax  basis  by  any  amount  distributed  on  the  ADSs  that  is  not  included  in  the  holder’s  income.  In
addition, a U.S. holder will recognize capital gain or loss on the disposition of ADSs in an amount equal to the difference between the amount realized and
the holder’s adjusted tax basis in the ADSs. U.S. holders should note that if they make QEF Elections with respect to us and lower-tier PFICs, they may be
required to pay U.S. federal income tax with respect to their ADSs for any taxable year significantly in excess of any cash distributions (which are expected
to be zero) received on the ADSs for such taxable year. U.S. holders should consult their tax advisors regarding making QEF Elections in their particular
circumstances. If a U.S. holder does not make and maintain a QEF election for the U.S. holder’s entire holding period for our ADSs by making the election
for the first year in which the U.S. holder owns our ADSs pursuant to this offering, the U.S. holder will be subject to the adverse PFIC rules discussed
above unless the U.S. holder can properly make a “purging election” with respect to our ADSs in connection with the U.S. Shareholder’s QEF Election. A
purging election may require the U.S. holder to recognize taxable gain on the U.S. holder’s ADSs. No purging election is necessary for a U.S. holder that
timely makes a QEF election for the first year in which the U.S. holder acquired our ADSs.

If we are determined to be a PFIC, the general tax treatment for U.S. holders described in this section will apply to indirect distributions and gains deemed
to be realized by U.S. Holders in respect of any of our subsidiaries that also may be determined to be PFICs.

If  a  U.S.  holder  owns  ADSs  during  any  taxable  year  in  which  we  are  a  PFIC,  the  U.S.  holder  generally  will  be  required  to  file  an  IRS  Form  8621
(Information Return by a Shareholder of a Passive Foreign Investment Company or Qualified Electing Fund) with respect to the company, generally with
the  U.S.  holder’s  federal  income  tax  return  for  that  year.  If  our  company  is  a  PFIC  for  a  given  taxable  year,  then  you  should  consult  your  tax  advisor
concerning your annual filing requirements.

The  U.S.  federal  income  tax  rules  relating  to  PFICs  are  complex.  Prospective  U.S.  investors  are  urged  to  consult  their  own  tax  advisers  with
respect to the acquisition, ownership and disposition of the ADSs, the consequences to them of an investment in a PFIC, any elections available
with respect to the ADSs and the IRS information reporting obligations with respect to the acquisition, ownership and disposition of the ADSs.

U.S.  Federal  Income  Tax  Consequences  If  We  Are  Not  a  PFIC.  The  description  of  the  U.S.  federal  income  tax  consequences  of  the  receipt  of
distributions  and  the  sale  or  other  taxable  exchange  of  our  ADSs,  described  in  the  following  two  sections  “—Distributions”  and  “—Sale,  Exchange  or
Other Taxable Disposition of the ADSs,” apply only if we are not a PFIC in the relevant year and our stock is not subject to the rules described above under
“—Passive Foreign Investment Company Considerations” because we were a PFIC with respect to a U.S. holder and its ADSs in a prior year.

Distributions. We do not expect to make any distribution in respect of our ADSs. If we are not treated as a PFIC under the rules described above under “—
Passive Foreign Investment Company Considerations” and made any distribution in respect of our ADSs, the gross amount of the distribution (including
any  amounts  of  foreign  tax  withheld  in  respect  of  such  distribution)  actually  or  constructively  received  by  a  U.S.  holder  with  respect  to  ADSs  will  be
taxable to the U.S. holder as a dividend to the extent of the U.S. holder’s pro rata share of our current or accumulated earnings and profits as determined
under U.S. federal income tax principles. Distributions in excess of earnings and profits will be non-taxable to the U.S. holder to the extent of, and will be
applied against and reduce, the U.S. holder’s adjusted tax basis in the ADSs. Distributions in excess of earnings and profits and such adjusted tax basis will
generally be taxable to the U.S. holder as either long-term or short-term capital gain depending upon whether the U.S. holder's holding period exceeds one
year as of the time such distribution is received. However, since we do not calculate our earnings and profits under U.S. federal income tax principles, it is
expected that any distribution will be reported as a dividend, even if that distribution would otherwise be treated as a non-taxable return of capital or as
capital  gain  under  the  rules  described  above.  Non-corporate  U.S.  holders  may  qualify  for  the  preferential  rates  of  taxation  with  respect  to  dividends  on
ADSs applicable to long-term capital gains (i.e., gains from the sale of capital assets held for more than one year) applicable to qualified dividend income
(as discussed below) if we are a “qualified foreign corporation” and certain other requirements (discussed below) are met. A non-U.S. corporation (other
than a corporation that is classified as a PFIC for the taxable year in which the dividend is paid or the preceding taxable year) generally will be considered
to be a qualified foreign corporation (a) if it is eligible for the benefits of a comprehensive tax treaty with the United States which the Secretary of Treasury
of the United States determines is satisfactory for purposes of this provision and which includes an exchange of information provision, or (b) with respect
to any dividend it pays on ADSs which are readily tradable on an established securities market in the United States. Our ADSs are currently listed on the
Nasdaq Global Select Market, which is an established securities market in the United States, and we expect the ADSs to be readily tradable on the Nasdaq
Global  Select  Market.  However,  there  can  be  no  assurance  that  the  ADSs  will  be  considered  readily  tradable  on  an  established  securities  market  in  the
United States in later years. The Company, which is incorporated under the laws of France, believes that it qualifies as a resident of France for purposes of,
and is eligible for the benefits of, the Convention between the Government of the

131

that 

United States of America and the Government of the French Republic for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with
Respect to Taxes on Income and Capital, signed on August 31, 1994, as amended and currently in force, or the U.S.-France Tax Treaty, although there can
be no assurance in this regard. Further, the IRS has determined that the U.S.-France Tax Treaty is satisfactory for purposes of the qualified dividend rules
and 
the  discussion  under  “—Passive  Foreign  Investment
Company Considerations,” above, such dividends will generally be “qualified dividend income” in the hands of individual U.S. holders, provided that a
holding period requirement (more than 60 days of ownership, without protection from the risk of loss, during the 121-day period beginning 60 days before
the ex-dividend date) and certain other requirements are met. The dividends will not be eligible for the dividends-received deduction generally allowed to
corporate U.S. holders.

includes  an  exchange-of-information  program.  Therefore,  subject 

to 

it 

A U.S. holder generally may claim the amount of any French withholding tax as either a deduction from gross income or a credit against its U.S. federal
income tax liability, subject to generally applicable limitations. Generally, the credit is determined separately for different categories of income and cannot
exceed the proportionate share of a U.S. holder’s U.S. federal income tax liability that such U.S. holder’s taxable income from foreign sources bears to such
U.S.  holder’s  worldwide  taxable  income.  For  foreign  tax  credit  limitation  purposes,  dividend  distributions  with  respect  to  our  ADSs  generally  will  be
treated as passive category income from foreign sources. The amount of a distribution with respect to the ADSs that is treated as a “dividend” may be lower
for U.S. federal income tax purposes than it is for French income tax purposes, potentially resulting in a reduced foreign tax credit for the U.S. holder. Each
U.S. holder should consult its own tax advisors regarding the foreign tax credit rules.

In general, the amount of a distribution paid to a U.S. holder in a foreign currency will be the dollar value of the foreign currency calculated by reference to
the spot exchange rate on the day the Depositary receives the distribution, regardless of whether the foreign currency is converted into U.S. dollars at that
time. Any foreign currency gain or loss a U.S. holder realizes on a subsequent conversion of foreign currency into U.S. dollars will be U.S. source ordinary
income or loss. If dividends received in a foreign currency are converted into U.S. dollars on the day they are received, a U.S. holder should not be required
to recognize foreign currency gain or loss in respect of the dividend.

Sale, Exchange or Other Taxable Disposition of the ADSs. A U.S. holder will generally recognize gain or loss for U.S. federal income tax purposes upon
the sale, exchange or other taxable disposition of ADSs in an amount equal to the difference between the U.S. dollar value of the amount realized from
such  sale  or  exchange  and  the  U.S.  holder’s  tax  basis  in  those  ADSs,  determined  in  U.S.  dollars.  Subject  to  the  discussion  under  “—Passive  Foreign
Investment Company Considerations” above, this gain or loss will generally be a capital gain or loss. The adjusted tax basis in the ADSs generally will be
equal  to  the  cost  of  such  ADSs.  Capital  gain  from  the  sale,  exchange  or  other  taxable  disposition  of  ADSs  of  a  non-corporate  U.S.  holder  is  generally
eligible for a preferential rate of taxation applicable to capital gains, if the non-corporate U.S. holder’s holding period determined at the time of such sale,
exchange or other taxable disposition for such ADSs exceeds one year (i.e., such gain is long-term taxable gain). The deductibility of capital losses for U.S.
federal income tax purposes is subject to limitations. Any such gain or loss that a U.S. holder recognizes generally will be treated as U.S. source gain or
loss for foreign tax credit limitation purposes.

For a cash basis taxpayer, units of foreign currency paid or received are translated into U.S. dollars at the spot rate on the settlement date of the purchase or
sale. In that case, no foreign currency exchange gain or loss will result from currency fluctuations between the trade date and the settlement date of such a
purchase or sale. An accrual basis taxpayer, however, may elect the same treatment required of cash basis taxpayers with respect to purchases and sales of
the  ADSs  that  are  traded  on  an  established  securities  market,  provided  the  election  is  applied  consistently  from  year  to  year.  Such  election  may  not  be
changed without the consent of the IRS. For an accrual basis taxpayer who does not make such election, units of foreign currency paid or received are
translated into U.S. dollars at the spot rate on the trade date of the purchase or sale. Such an accrual basis taxpayer may recognize exchange gain or loss
based on currency fluctuations between the trade date and the settlement date. Any foreign currency gain or loss a U.S. Holder realizes will be U.S. source
ordinary income or loss.

Medicare Tax. Certain U.S. holders that are individuals, estates or trusts are subject to a 3.8% tax on all or a portion of their “net investment income,”
which may include all or a portion of their dividend income and net gains from the disposition of ADSs. Each U.S. holder that is an individual, estate or
trust is urged to consult its tax advisors regarding the applicability of the Medicare tax to its income and gains in respect of its investment in the ADSs.

Backup Withholding and Information Reporting. U.S. holders generally will be subject to information reporting requirements with respect to dividends
on  ADSs  and  on  the  proceeds  from  the  sale,  exchange  or  disposition  of  ADSs  that  are  paid  within  the  United  States  or  through  U.S.-related  financial
intermediaries, unless the U.S. holder is an “exempt recipient.” In addition, U.S. holders may be subject to backup withholding on such payments, unless
the U.S. holder provides a taxpayer identification number and a duly executed IRS Form W-9 or otherwise establishes an exemption. Backup withholding
is not an additional tax, and the amount of any backup withholding will be allowed as a credit against a U.S. holder’s U.S. federal income tax liability and
may entitle such holder to a refund, provided that the required information is timely furnished to the IRS.

132

Foreign  Asset  Reporting.  Certain  individual  U.S.  holders  are  required  to  report  information  relating  to  an  interest  in  the  ADSs,  subject  to  certain
exceptions (including an exception for shares held in accounts maintained by U.S. financial institutions) by filing IRS Form 8938 (Statement of Specified
Foreign Financial Assets) with their federal income tax return. U.S. holders are urged to consult their tax advisors regarding their information reporting
obligations, if any, with respect to their ownership and disposition of the ADSs.

THE DISCUSSION ABOVE IS A SUMMARY OF THE MATERIAL FRENCH AND U.S. FEDERAL INCOME TAX CONSEQUENCES OF AN
INVESTMENT IN OUR ADSs OR ORDINARY SHARES AND IS BASED UPON LAWS AND RELEVANT INTERPRETATIONS THEREOF
IN EFFECT AS OF THE DATE OF THIS ANNUAL REPORT ON FORM 20-F, ALL OF WHICH ARE SUBJECT TO CHANGE, POSSIBLY
WITH  RETROACTIVE  EFFECT.  EACH  PROSPECTIVE  INVESTOR  IS  URGED  TO  CONSULT  ITS  OWN  TAX  ADVISOR  ABOUT  THE
TAX  CONSEQUENCES  TO  IT  OF  AN  INVESTMENT  IN  ADSs  OR  ORDINARY  SHARES  IN  LIGHT  OF  THE  INVESTOR’S  OWN
CIRCUMSTANCES.

10.F. Dividends and Paying Agents.

Not applicable.

10.G.

Statement by Experts.

Not applicable.

10.H. Documents on Display.

We are subject to the information reporting requirements of the Exchange Act applicable to foreign private issuers and under those requirements will file
reports with the SEC. Those reports may be inspected without charge at the locations described below. As a foreign private issuer, we are exempt from the
rules under the Exchange Act related to the furnishing and content of proxy statements, and our officers, directors and principal shareholders are exempt
from  the  reporting  and  short-swing  profit  recovery  provisions  contained  in  Section  16  of  the  Exchange  Act.  In  addition,  we  are  not  required  under  the
Exchange Act to file periodic reports and financial statements with the SEC as frequently or as promptly as United States companies whose securities are
registered under the Exchange Act. Nevertheless, we will file with the SEC an Annual Report on Form 20-F containing financial statements that have been
examined and reported on, with and opinion expressed by an independent registered public accounting firm.

We maintain a corporate website at www.erytech.com. We intend to post our Annual Reports on Form 20-F on our website promptly following it being filed
with the SEC. Information contained on, or that can be accessed through, our website does not constitute a part of this Annual Report. We have included
our website address in this Annual Report solely as an inactive textual reference.

The  Securities  and  Exchange  Commission  maintains  a  website  (www.sec.gov)  that  contains  reports,  proxy  and  information  statements  and  other
information regarding registrants, such as us, that file electronically with the SEC.

With respect to references made in this Annual Report to any contract or other document of our company, such references are not necessarily complete and
you should refer to the exhibits attached or incorporated by reference to this Annual Report for copies of the actual contract or document.

10.I.

Subsidiary Information.

Not required.

133

Item 11.Quantitative and Qualitative Disclosures About Market Risk.

Liquidity Risk

As of December 31, 2020, our cash and cash equivalents were €44.4 million ($54.4 million) and were primarily cash and term deposits that are convertible
into  cash  in  approximately  30  days  notice  without  penalty.  We  believe  that  our  cash  and  cash  equivalents  as  of  December  31,  2020  with  (i)  the  sale  of
shares under the ATM program in February 2021 for a gross amount of €6.6 million, (ii) the tranche of convertible notes issued in March 2021 for a gross
amount of €3.0 million and (iii) the possibility of further use of the OCABSA agreement enable to cover our cash requirements until the first quarter 2022.
We may need to seek additional funds sooner than planned, through public or private equity or debt financings, government or other third-party funding,
marketing  and  distribution  arrangements  and  other  collaborations,  strategic  alliances  and  licensing  arrangements  or  a  combination  of  these  approaches.
However, no assurance can be given at this time as to whether we will be able to achieve these financing objectives.

Foreign Currency Exchange Risk

We use the euro as our functional currency for our financial communications. However, a significant portion of our expenses, financial assets and liabilities
are  denominated  in  U.S  dollars  and  are  exposed  to  changes  in  foreign  currency  exchange  rates.  We  also  entered  into  a  license  agreement  with  SQZ
Biotechnologies in 2019 and any potential revenues pursuant to this agreement will be made in U.S. dollars.

We do not currently engage in hedging transactions or the use of forward contracts but may in the future in order to minimize the impact of uncertainty in
future exchange rates on cash flows. A deterioration of the U.S dollar of the Euro could impact our financial statements as follows:

(in thousands)
Financial assets

of which cash and cash equivalents

Financial liabilities

As of December 31, 2020
EUR
USD

+ 1 %

Sensitivity
+ 5 %

17,630 
17,285 
10,152 

14,368 
14,086 
8,273 

(142)
(139)
(82)

(684)
(671)
(394)

+ 10 %

(1,306)
(1,281)
(752)

As we advance our clinical development in the United States and potentially commercialize our product candidates in that market, we expect to face greater
exposure to exchange rate risk and would then consider using exchange rate derivative or hedging techniques at that time. We expect to continue to enter
into transactions based in foreign currencies that could be impacted by changes in exchange rates.

Equity risk

The Company's exposure to equity risk is limited to its own shares and linked to the OCABSA agreement. The total amount that could be issued under this
agreement is subject to the regulatory limit of 20% dilution. As the share price of the Company has an impact on the number of shares issued upon the
conversion of the convertible notes, the possibility to raise up to €42.0 million will depend on the share price of the company. Based on the closing market
price the day before the approval date of the Consolidated Financial Statements (€7.10), the Company could raise approximately €33.0 million. A change
in the the share price used could change the amount that could be raised as follows:

(in millions of euros)
Amount that could be raised

Interest Rate Risk

- 20%

Sensitivity
€7.10

+20%

24.0 

33.0 

33.0 

We believe we have very low exposure to interest rate risk. Such exposure primarily involves our money market funds and time deposit accounts. Changes
in interest rates have a direct impact on the rate of return on these investments and the cash flows generated.

The outstanding bank loans bear interest at a fixed rate, and therefore we are not subject to interest rate risk with respect to this loan.

134

Credit Risk

We believe that the credit risk related to our cash and cash equivalents is not significant in light of the quality of the financial institutions at which such
funds are held.

Item 12.Description of Securities Other than Equity Securities.

12.A. Debt Securities.

Not applicable.

12.B. Warrants and Rights.

Not applicable.

12.C. Other Securities.

Not applicable.

12.D. American Depositary Shares.

The Bank of New York Mellon acts as the depositary for the American Depositary Shares. The Bank of New York Mellon’s depositary offices are located
at 240 Greenwich Street, New York, New York 10286. American Depositary Shares are frequently referred to as ADSs and represent ownership interests in
securities that are on deposit with the depositary. ADSs may be evidenced by certificates that are commonly known as American Depositary Receipts, or
ADRs. The depositary typically appoints a custodian to safekeep the securities on deposit. In this case, the custodian is Société Générale.

An owner of ADSs may hold its ADSs either (1) directly (a) by having an ADR, which is a certificate evidencing a specific number of ADSs, registered in
such owner’s name, or (b) by having uncertificated ADSs registered in the owner’s name in the Direct Registration System, or DRS, or (2) indirectly by
holding a security entitlement in ADSs through the owner’s broker or other financial institution that is a direct or indirect participant in the Depository
Trust Company, or DTC. If an owner of ADSs decides to hold its ADSs directly, such owner is a registered ADS holder, also referred to as an ADS holder.
This description assumes all owners are an ADS holder. If an owner of ADSs decides to hold the ADSs indirectly, such owner must rely on the procedures
of its broker or other financial institution to assert the rights of ADS holders described in this section. Such indirect holder should consult with its broker or
financial institution to find out what those procedures are.

DRS is a system administered by DTC pursuant to which the depositary may register the ownership of uncertificated ADSs, which ownership is confirmed
by periodic statements sent by the depositary to the registered holders of uncertificated ADSs.

An  ADS  holder  will  not  be  treated  as  one  of  the  Company’s  shareholders  and  such  ADS  holder  will  not  have  shareholder  rights.  French  law  governs
shareholder rights. The depositary will be the holder of the ordinary shares underlying each owner’s ADSs. A holder of ADSs will have ADS holder rights.
An amended and restated deposit agreement among the Company, the depositary and all persons directly and indirectly holding ADSs sets out ADS holder
rights as well as the rights and obligations of the depositary. New York law governs the amended and restated deposit agreement and the ADRs. In the
event of any discrepancy between the ADRs and the amended and restated deposit agreement, the amended and restated deposit agreement governs. The
following is a summary of the material provisions of the amended and restated deposit agreement. More complete information is contained in the amended
and  restated  deposit  agreement  and  the  form  of  ADR.  Members  of  the  public  may  obtain  copies  of  those  documents  from  the  SEC’s  website  at
www.sec.gov. A copy of the amended and restated deposit agreement is also filed as an exhibit to the Company’s Annual Report on Form 20-F to which
this description is also an exhibit.

135

Fees and Expenses

Pursuant  to  the  terms  of  the  amended  and  restated  deposit  agreement,  the  holders  of  our  ADSs  will  be  required  to  pay  the  following  fees
Persons depositing or withdrawing ordinary shares or ADSs
must pay:
$5.00 (or less) per 100 ADSs (or portion of 100 ADSs)

 Issue of ADSs, including issues resulting from a distribution of ordinary

For:

• 
shares or rights

 Cancellation of ADSs for the purpose of withdrawal, including if the

• 
amended and restated deposit agreement terminates

$0.05 (or less) per ADS

• 

 Any cash distribution to an ADS holder

A fee equivalent to the fee that would be payable if securities distributed to
an ADS holder had been ordinary shares and the shares had been deposited
for issue of ADSs

 Distribution of securities distributed to holders of deposited securities

• 
which are distributed by the depositary to an ADS holder

$0.05 (or less) per ADS per calendar year

• 

 Depositary services

Registration or transfer fees

Expenses of the depositary

 Transfer and registration of ordinary shares on the Company’s

• 
 share register to or from the name of the depositary or its agent when an
ADS holder deposits or withdraws shares

 Cable (including SWIFT) and facsimile transmissions as expressly

• 
provided in the amended and restated deposit agreement

• 

 Converting foreign currency to U.S. dollars

Taxes and other governmental charges the depositary or the custodian have
to pay on any ADS or share underlying an ADS, for example, share transfer
taxes, stamp duty or withholding taxes

• 

 As necessary

Any charges payable by the depositary, custodian or their agents in
connection with the servicing of deposited securities

• 

 As necessary

The depositary collects its fees for delivery and surrender of ADSs directly from investors depositing ordinary shares or surrendering ADSs for the purpose
of withdrawal or from intermediaries acting for them. The depositary collects fees for making distributions to investors by deducting those fees from the
amounts distributed or by selling a portion of distributable property to pay the fees. The depositary may collect its annual fee for depositary services by
deduction  from  cash  distributions  or  by  directly  billing  investors  or  by  charging  the  book-entry  system  accounts  of  participants  acting  for  them.  The
depositary may collect any of its fees by deduction from any cash distribution payable to ADS holders that are obligated to pay those fees. The depositary
may generally refuse to provide for-fee services until its fees for those services are paid.

From time to time, the depositary may make payments to the Company to reimburse or share revenue from the fees collected from ADS holders, or waive
fees and expenses for services provided, generally relating to costs and expenses arising out of establishment and maintenance of the ADS program. In
performing  its  duties  under  the  amended  and  restated  deposit  agreement,  the  depositary  may  use  brokers,  dealers,  foreign  currency  or  other  service
providers that are affiliates of the depositary and that may earn or share fees, spreads or commissions.

The depositary may convert foreign currency itself or through any of its affiliates and, in those cases, acts as principal for its own account and not as agent,
advisor, broker or fiduciary on behalf of any other person and earns revenue, including, without limitation, transaction spreads, that it will retain for its own
account.  The  revenue  is  based  on,  among  other  things,  the  difference  between  the  exchange  rate  assigned  to  the  currency  conversion  made  under  the
amended  and  restated  deposit  agreement  and  the  rate  that  the  depositary  or  its  affiliate  receives  when  buying  or  selling  foreign  currency  for  its  own
account.  The  depositary  makes  no  representation  that  the  exchange  rate  used  or  obtained  in  any  currency  conversion  under  the  amended  and  restated
deposit agreement will be the most favorable rate that could be obtained at the time or that the method by which that rate will be determined will be the
most favorable to

136

  
  
 
  
 
  
 
  
 
  
 
  
 
 
 
  
  
holders of ADSs, subject to the depositary’s obligations under the amended and restated deposit agreement. The methodology used to determine exchange
rates used in currency conversions is available upon request.

Payment of Taxes

ADS holders will be responsible for any taxes or other governmental charges payable on their ADSs or on the deposited securities represented by any of
such holder’s ADSs. The depositary may refuse to register any transfer of a holder’s ADSs or allow them to withdraw the deposited securities represented
by such holder’s ADSs until such taxes or other charges are paid. It may apply payments owed to ADS holders or sell deposited securities represented by
such  holder’s  ADSs  to  pay  any  taxes  owed  and  such  holder  will  remain  liable  for  any  deficiency.  If  the  depositary  sells  deposited  securities,  it  will,  if
appropriate, reduce the number of ADSs registered in the ADS holder’s name to reflect the sale and pay to such holder any net proceeds, or send such
holder any property, remaining after it has paid the taxes. An ADS holder’s obligation to pay taxes and indemnify the Company and the depository against
any tax claims will survive the transfer or surrender of such holder’s ADSs, the withdrawal of the deposited ordinary shares as well as the termination of
the amended and restated deposit agreement.

PART II.

Item 13. Defaults, Dividend Arrearages and Delinquencies.

Not applicable.

Item 14. Material Modifications to the Rights of Security Holders and Use of Proceeds.

Not applicable.

Item 15.Controls and Procedures.

Disclosure Controls and Procedures

Our management, with the participation of our chief executive officer (principal executive officer) and our chief financial officer and chief operating officer
(principal financial officer), has evaluated the effectiveness of our disclosure controls and procedures (as such term is defined in Rules 13(a) - 15(e) and
15(d) - 15(e) under the Securities Exchange Act of 1934, as amended), as of December 31, 2020. Based on such evaluation, our principal executive officer
and  principal  financial  officer  have  concluded  that  our  disclosure  controls  and  procedures  were  not  effective  at  the  reasonable  assurance  level  as  of
December 31, 2020 as a result of the material weaknesses described below. We are undertaking the remedial steps to address the material weaknesses in our
disclosure controls and procedures as set forth below under “Management’s Plan for Remediation of Current Material Weaknesses.”

Management’s Annual Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal controls over financial reporting (as defined in Rules 13a-15(f) and 15d-
15(f)  under  the  Exchange  Act)  and  for  the  assessment  of  the  effectiveness  of  our  internal  control  over  financial  reporting.  Because  of  its  inherent
limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future
periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or
procedures may deteriorate.

Under the supervision and with the participation of our chief executive officer (principal executive officer) and chief financial officer and chief operating
officer  (principal  financial  officer),  management  conducted  an  assessment  of  our  internal  control  over  financial  reporting  based  upon  the  framework  in
Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). A material
weakness  is  a  deficiency,  or  a  combination  of  deficiencies,  in  internal  control  over  financial  reporting,  such  that  there  is  a  reasonable  possibility  that  a
material misstatement of our financial statements will not be prevented or detected on a timely basis.

In connection with the preparation of our financial results for the year ended December 31, 2018, our management concluded that, as of December 31,
2018, our internal control over financial reporting was not effective as a result of two material weaknesses in our internal control over financial reporting
related to: (i) the monitoring of research and development projects, as controls designed to track actual costs incurred against invoices received were not
operating at a sufficient level of precision due to insufficient personnel with an appropriate level of knowledge and training in internal control over complex
processes; and (ii) the lack of sufficiently developed and documented internal controls for our U.S. subsidiary. We believe that the two material weaknesses
concerning (i) the

137

monitoring of research and development projects and (ii) the lack of sufficiently developed and documented internal controls for our U.S. subsidiary were
not fully remediated as of December 31, 2020.

In  connection  with  our  assessment  as  of  December  31,  2020,  our  management  concluded  that  the  following  two  material  weaknesses  have  not  been
remediated as of December 31, 2020.

Monitoring of Research and Development Projects.

As of December 31, 2018, we identified a material weakness related to the monitoring of research and development projects, as controls designed to track
actual costs incurred compared to invoices received were not operating at a sufficient level of precision due to insufficient personnel with an appropriate
level of knowledge and training in internal control over complex processes.

To remediate this material weakness, we took number of actions to improve internal control over financial reporting related to our U.S subsidiary during
years ended December 31, 2019 and December 31, 2020, including the following:

• We hired a vendor coordinator to reinforce the team dedicated to the monitoring of research and development projects for which process level

controls have not been considered as effective in 2019 ; and

• We strengthened the controls over our research and development financial information to detect and correct errors in 2019 and some of which

were still in the process of being implemented in 2020.

We believe the remediation plan described above improved the reliability of financial information related to research and development as the precision of
controls relating to the tracking of actual costs compared to invoiced amounts was improved.

Nevertheless, our management identified that the finalization of the implementation and the rolling out of the controls over our research and development
financial information to detect and correct errors was necessary to fully remediate this material weakness.

Internal Control of U.S. Subsidiary.

As of December 31, 2018, we identified a material weakness related to the lack of sufficiently developed and documented internal controls for our U.S.
subsidiary, ERYTECH Pharma Inc.

To remediate this material weakness, we took number of actions to improve internal control over financial reporting related to our U.S subsidiary during
years ended December 31, 2019 and December 31, 2020, including the following:

•

•

analyzing the existing segregation of duties environment implemented in our U.S. subsidiary, identifying potential organizational conflicts due to
the size of the team and when possible define mitigating controls;

on-going design and implementation of effective controls over certain information technology (“IT”) systems relevant to the preparation of the
consolidated financial statements, with a specific focus on users’ access controls.

However, we failed to fully remediate this material weakness since we have not yet designed, implemented and maintained effective controls over certain
information technology systems supporting our U.S operations that are relevant to the preparation of the consolidated financial statements. Specifically, we
did not restrict user and privileged access to certain financial applications, data and programs to the appropriate personnel.

As a result of the two material weaknesses described above, management concluded our internal control over financial reporting was not effective as of
December 31, 2020 at the reasonable assurance level.

Management’s Plan for Remediation of Current Material Weaknesses

With  the  oversight  of  senior  management  and  our  audit  committee,  we  continue  to  evaluate  our  internal  control  over  financial  reporting  and  are  taking
several remediation actions to address the two material weaknesses that were not remediated as of December 31, 2020:

Monitoring of Research and Development Projects

Going forward, we plan to finalize of the implementation and the rolling out of the controls over our research and development financial information to
detect and correct errors.

Lack of Effective Control Over IT System Supporting Financial U.S Activities

138

Going forward, we plan to:

•

•

reinforce of our U.S. finance team by the recruitment of a new staff accountant to ensure a proper segregation of duties at an operational level

keep implementing effective controls over certain information technology (“IT”) systems relevant to the preparation of the consolidated financial
statements.

Notwithstanding the material weaknesses, our management has concluded that the financial statements included elsewhere in this Annual Report present
fairly, in all material respects, our financial position, results of operations and cash flows for the periods presented in conformity with IFRS.

Our independent registered public accounting firm has not assessed the effectiveness of our internal control over financial reporting, which may increase
the risk that weaknesses or deficiencies in our internal control over financial reporting go undetected.

Attestation Report of the Registered Public Accounting Firm

This Annual Report does not include an attestation report of our registered public accounting firm due to a transition period established by rules of the
Securities and Exchange Commission for emerging growth companies.

Changes in Internal Control over Financial Reporting

Other  than  the  remediation  activities  described  above,  there  were  no  changes  in  our  internal  control  over  financial  reporting  during  the  year  ended
December 31, 2020 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Item 16. Reserved.

Not applicable.

Item 16A. 

Audit Committees Financial Expert.

Our board of directors has determined that Ms. Windels is an audit committee financial expert as defined by SEC rules and regulations and each of the
members  of  our  board  of  directors  has  the  requisite  financial  sophistication  under  the  applicable  rules  and  regulations  of  the  Nasdaq  Stock  Market.
Ms. Windels is independent as such term is defined in Rule 10A-3 under the Exchange Act and under the listing standards of the Nasdaq Stock Market.

Item 16B.

Code of Business Conduct and Ethics.

We have adopted a Code of Business Conduct and Ethics, or the Code of Ethics, that is applicable to all of our employees, executive officers and directors.
A copy of the Code of Ethics is available on our website at www.erytech.com. The audit committee of our board of directors is responsible for overseeing
the Code of Ethics and must approve any waivers of the Code of Ethics for employees, executive officers and directors. We expect that any amendments to
the Code of Ethics, or any waivers of its requirements, will be disclosed on our website.

139

Item 16C.

Principal Accountant Fees and Services.

KPMG S.A., or KPMG, has served as our independent registered public accounting firm for the years ended December 31, 2019 and 2020. Our accountants
billed the following fees to us for professional services in each of those fiscal years, all of which were approved by our audit committee:

(in thousands of €)
Audit Fees

Audit-Related Fees

All Other Fees

Total

Year Ended December 31,

2019

2020

322 

74 

— 

396

363 

165 

— 

528 

“Audit Fees” are the aggregate fees billed for the audit of our annual financial statements. This category also includes services that KPMG provides, such
as consents and assistance with and review of documents filed with the SEC.

“Audit-Related Fees” are the aggregate fees billed for assurance and related services that are reasonably related to the performance of the audit and are not
reported under Audit Fees.

“All Other Fees” are additional amounts billed for products and services provided by KPMG.

There were no “Tax Fees” billed or paid during 2019 or 2020.

Audit and Non-Audit Services Pre-Approval Policy

The audit committee has responsibility for appointing, setting compensation of and overseeing the work of the independent registered public accounting
firm. In recognition of this responsibility, the audit committee has adopted a policy governing the pre-approval of all audit and permitted non-audit services
performed by our independent registered public accounting firm to ensure that the provision of such services does not impair the independent registered
public  accounting  firm’s  independence  from  us  and  our  management.  Unless  a  type  of  service  to  be  provided  by  our  independent  registered  public
accounting firm has received general pre-approval from the audit committee, it requires specific pre-approval by the audit committee. The payment for any
proposed services in excess of pre-approved cost levels requires specific pre-approval by the audit committee.

Pursuant to its pre-approval policy, the audit committee may delegate its authority to pre-approve services to the chairperson of the audit committee. The
decisions of the chairperson to grant pre-approvals must be presented to the full audit committee at its next scheduled meeting. The audit committee may
not delegate its responsibilities to pre-approve services to the management.

The audit committee has considered the non-audit services provided by KPMG as described above and believes that they are compatible with maintaining
KPMG’s independence as our independent registered public accounting firm.

Item 16D.

Exemptions from the Listing Standards for Audit Committees.

Not applicable.

Item 16E.

Purchases of Equity Securities by the Issuer and Affiliated Purchasers.

Not applicable.

Item 16F.

Change in Registrant’s Certifying Accountant.

Not applicable.

Item 16G.

Corporate Governance.

As a French société anonyme, we are subject to various corporate governance requirements under French law. In addition, as a foreign private issuer listed
on  the  Nasdaq  Global  Select  Market,  we  are  subject  to  Nasdaq  corporate  governance  listing  standards.  However,  the  corporate  governance  standards
provide that foreign private issuers are permitted to follow home country corporate governance practices in lieu of Nasdaq rules, with certain exceptions.
We currently rely on these exemptions for foreign private issuers and follow

140

French corporate governance practices in lieu of the Nasdaq corporate governance rules, which would otherwise require that (1) a majority of our board of
directors  consist  of  independent  directors;  (2)  we  establish  a  nominating  and  corporate  governance  committee;  and  (3)  our  remuneration  committee  be
composed entirely of independent directors.

The following are the significant ways in which our corporate governance practices differ from those required for U.S. companies listed on Nasdaq:

As a foreign private issuer, we are required to comply with Rule 10A-3 of the Exchange Act, relating to audit committee composition and responsibilities.
Rule  10A-3  provides  that  the  audit  committee  must  have  direct  responsibility  for  the  nomination,  compensation  and  choice  of  our  auditors,  as  well  as
control  over  the  performance  of  their  duties,  management  of  complaints  made,  and  selection  of  consultants.  However,  if  the  laws  of  a  foreign  private
issuer’s  home  country  require  that  any  such  matter  be  approved  by  the  board  of  directors  or  the  shareholders,  the  audit  committee’s  responsibilities  or
powers with respect to such matter may instead be advisory. Under French law, the audit committee may only have an advisory role and appointment of our
statutory auditors, in particular, must be decided by the shareholders at our annual meeting.

In addition, Nasdaq rules require that a listed company specify that the quorum for any meeting of the holders of common stock be at least 33 / % of the
outstanding  shares  of  the  company’s  voting  stock.  Consistent  with  French  law,  our  bylaws  provide  that  a  quorum  requires  the  presence  of  shareholders
having at least (1) 20% of the shares entitled to vote in the case of an ordinary shareholders’ general meeting or at an extraordinary shareholders’ general
meeting where shareholders are voting on a capital increase by capitalization of reserves, profits or share premium, or (2) 25% of the shares entitled to vote
in the case of any other extraordinary shareholders’ general meeting. If a quorum is not present, the meeting is adjourned. There is no quorum requirement
when  an  ordinary  general  meeting  is  reconvened,  but  the  reconvened  meeting  may  consider  only  questions  which  were  on  the  agenda  of  the  adjourned
meeting. When an extraordinary general meeting is reconvened, the quorum required is 20% of the shares entitled to vote, except where the reconvened
meeting  is  considering  capital  increases  through  capitalization  of  reserves,  profits  or  share  premium.  For  these  matters,  no  quorum  is  required  at  the
reconvened meeting. If a quorum is not present at a reconvened meeting requiring a quorum, then the meeting may be adjourned for a maximum of two
months.

3

 1

Item 16H.

Mine Safety Disclosure.

Not applicable.

PART III.

Item 17. Financial Statements.

See the financial statements beginning on page F-1 of this Annual Report.

Item 18. Financial Statements.

Not applicable.

Item 19. Exhibits.

The exhibits listed below are filed as exhibits to this Annual Report.

Exhibit

1.1

2.1

2.2

2.3*

2.4

Description

Bylaws (statuts) of the registrant (English translation)

Amended and Restated Deposit Agreement

Form of American Depositary Receipt (included in Exhibit 2.1)

Description of Securities

Sales Agreement, dated September 21, 2020, by and between the
Registrant and Cowen and Company, LLC

141

Incorporated by Reference

Schedule/
Form

File
Number

Exhibit

File
Date

F-3

F-3

F-3

333-248953

333-248953

4.2

4.2

September 21, 2020

September 21, 2020

333-248953

1.2

September 21, 2020

4.1

4.2

4.3

4.4

4.7#

4.8#

4.9#

4.10

4.11#

4.12†

4.13†

4.14†

4.15†

4.16†

4.17†

4.18†

4.19†

4.20†

4.21†

4.22†

4.23†

4.24†

Exhibit

Description

Lease Agreement by and between the registrant and PFO2 SCPI
(represented by PERIAL Asset Management SASU), dated June 9,
2015 (English translation)

Addendum #1 to the Lease Agreement by and between the registrant
and PF02 SCPI (represented by PERIAL Asset Management SASU),
dated December 30, 2016 (English translation)

Incorporated by Reference

Schedule/
Form

File
Number

Exhibit

File
Date

F-1

333-220867

10.1

October 6, 2017

F-1

333-220867

10.2

October 6, 2017

Lease Agreement by and between the registrant and EUROGAL, dated
December 6, 2017 (English Translation)

20-F

001-38281

Lease by and between the registrant and 104 Campus Drive LLC, dated
April 27, 2018

20-F

001-38281

4.3

4.4

April 24, 2018

March 29, 2019

Exclusive Distribution Agreement by and between the registrant and
Abic Marketing Limited, dated as of March 28, 2011

Exclusive Supply Agreement for L-asparaginase by and between the
registrant and medac GmbH, dated as of December 12, 2008 and
Addendum #1 to the Exclusive Supply Agreement for L-Asparaginase,
dated August 19, 2009

Exclusive Supply Agreement for recombinant L-asparaginase by and
between the registrant and medac GmbH, dated as of May 3, 2011 and
Addendum #1 to the Exclusive Supply Agreement for recombinant L-
asparaginase, dated April 4, 2014

Addendum #2 to the Exclusive Supply Agreement for L-asparaginase
by and between the registrant and medac GmbH, dated July 25, 2016

Addendum #2 to the Exclusive Supply Agreement for recombinant L-
asparaginase by and between the registrant and medac GmbH, dated
July 25, 2016

Form of indemnification agreement between the registrant and each of
its executive officers and directors

Summary of BSA Plans

Summary of BSPCE Plans

2016 Share Option Plan (English translation)

2016 Free Share Plan (English translation)

2017 Share Option Plan (English translation)

2017 Free Share Plan (English translation)

2018 Share Option Plan (English translation)

2018 Free Share Plan (English translation)

2018 BSA Subscription Plan (English translation)

2019 Share Option Plan (English translation)

2019 Free Share Plan (English translation)

2019 BSA Subscription Plan (English translation)

F-1

F-1

333-220867

10.5

October 6, 2017

333-220867

10.6

October 6, 2017

F-1

333-220867

10.7

October 6, 2017

F-1

F-1

F-1

F-1

F-1

F-1

F-1

S-8

S-8

S-8

S-8

S-8

20-F

20-F

S-8

333-220867

10.8

October 6, 2017

333-220867

10.9

October 6, 2017

333-220867

10.11

October 6, 2017

333-220867

333-220867

333-220867

333-220867

333-222673

333-222673

333-232670

333-232670

333-232670
001-38281

001-38281

333-239429

10.12

10.13

10.14

10.15

99.5

99.6

99.2

99.3

99.4

4.22

4.23

99.4

October 6, 2017

October 6, 2017

October 6, 2017

October 6, 2017

January 24, 2018

January 24, 2018

July 16, 2019

July 16, 2019

July 16, 2019
March 18, 2020

March 18, 2020

June 25, 2020

142

Exhibit

4.25^

4.26†

4.27†*

4.28†*

4.29†*

4.30†*

8.1

12.1*

12.2*

13.1**

Incorporated by Reference

Schedule/
Form
20-F

File
Number
001-38281

Exhibit

4.24

File
Date
March 18, 2020

20-F

001-38281

4.25

March 18, 2020

Description

License and Collaboration Agreement by and between the registrant
and SQZ Biotechnologies Company, dated June 24, 2019

Executive Employment Agreement by and between the registrant and
Gil Beyen, dated as of April 1, 2019

2020 Share Option Plan

2020 Free Share Plan (English translation)

2020 BSA Subscription Plan

Agreement for the issuance of and subscription to warrants giving
access to notes convertible into new and/or existing shares with share
subscription warrants attached

List of subsidiaries of the registrant

F-1

333-220867

21.1

October 6, 2017

Certification by the Principal Executive Officer pursuant to Securities
Exchange Act Rules 13a-14(a) and 15d-14(a) as adopted pursuant to
Section 302 of the Sarbanes-Oxley Act of 2002

Certification by the Principal Financial Officer pursuant to Securities
Exchange Act Rules 13a-14(a) and 15d-14(a) as adopted pursuant to
Section 302 of the Sarbanes-Oxley Act of 2002

Certification by the Principal Executive Officer and Principal Financial
Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002

15.1*

Consent of KPMG S.A.

101.INS*

XBRL Instance Document

101.SCH*

XBRL Taxonomy Extension Schema Document

101.CAL*

XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF*

XBRL Taxonomy Extension Definition Linkbase Document

101.LAB*

XBRL Taxonomy Extension Label Linkbase Document

101.PRE*

XBRL Taxonomy Extension Presentation Linkbase Document

*    Filed herewith.
**    Furnished herewith.
†    Indicates a management contract or any compensatory plan, contract or arrangement.
#    Confidential treatment has been granted from the Securities and Exchange Commission as to certain portions of this document.
^        Portions  of  this  document  (indicated  by  "[***]")  have  been  omitted  because  they  are  not  material  and  would  likely  cause  competitive  harm  to

ERYTECH Pharma S.A. if disclosed.

143

The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized the undersigned to
sign this annual report on its behalf.

SIGNATURES

ERYTECH Pharma S.A.

By:

Name:

Title:

/s/ Gil Beyen

Gil Beyen

Chief Executive Officer

Date: March 8, 2021

144

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Consolidated Financial Statements as of and for the Years Ended December 31, 2018, 2019 and 2020
Report of KPMG S.A., Independent Registered Public Accounting Firm

Consolidated Statements of Income (Loss) for the Years Ended December 31, 2018, 2019 and 2020

Consolidated Statements of Comprehensive Income (Loss) for the Years Ended December 31, 2018, 2019 and 2020

Consolidated Statements of Financial Position as of December 31, 2018, 2019 and 2020

Consolidated Statements of Cash Flows for the Years Ended December 31, 2018, 2019 and 2020

Consolidated Statements of Changes in Shareholders’ Equity for the Years Ended December 31, 2018, 2019 and 2020

Notes to the Consolidated Financial Statements

Page

F-2

F-3

F-3

F-4

F-5

F-6

F-7

F-1

Report of Independent Registered Public Accounting Firm

To the Shareholders and Board of Directors,

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated statements of financial position of Erytech Pharma S.A. and subsidiary (the Company) as of December 31,
2020, 2019 and 2018, the related consolidated statements of income (loss), comprehensive income (loss), changes in shareholders’ equity, and cash flows
for each of the years in the three‑year period ended December 31, 2020, and the related notes (collectively, the consolidated financial statements). In our
opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2020, 2019
and 2018, and the results of its operations and its cash flows for each of the years in the three‑year period ended December 31, 2020, in conformity with
International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”).

Change in Accounting Principle

As discussed in Notes 4.2 and 4.10 to the consolidated financial statements, the Company has changed its method of accounting for leases on January 1,
2019, due to the adoption of IFRS 16 “Leases”.

Basis for Opinion

These  consolidated  financial  statements  are  the  responsibility  of  the  Company’s  management.  Our  responsibility  is  to  express  an  opinion  on  these
consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board
(United  States)  (PCAOB)  and  are  required  to  be  independent  with  respect  to  the  Company  in  accordance  with  the  U.S.  federal  securities  laws  and  the
applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable
assurance  about  whether  the  consolidated  financial  statements  are  free  of  material  misstatement,  whether  due  to  error  or  fraud.  The  Company  is  not
required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain
an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal
control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or
fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and
disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by
management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis
for our opinion.

We have served as the Company’s auditor since 2004.

Lyon, 8 March 2021

KPMG Audit

A division of KPMG S.A.

Stéphane Devin

Partner

F-2

CONSOLIDATED STATEMENT OF INCOME (LOSS)

(Amounts in thousands of euros,
except loss per share)

Revenues

Other income

Operating income

Research and development

General and administrative

Operating expenses

Operating loss

Financial income

Financial expenses

Financial income (loss)

Income tax

Net loss

Basic / Diluted loss per share (€/share)

Notes

12/31/2018

12/31/2019

12/31/2020

3.1

3.2.1

3.2.2

3.5

3.5

3.6

3.7

— 

4,447 

4,447 

(33,468)

(14,600)

(48,068)

(43,621)

5,427 

(28)

5,399 

(2)

(38,224)

(2.13)

— 

5,283 

5,283 

(52,193)

(17,164)

(69,357)

(64,074)

2,947 

(1,533)

1,414 

1 

(62,659)

(3.49)

— 

3,718 

3,718 

(57,580)

(14,970)

(72,550)

(68,832)

889 

(5,354)

(4,465)

(3)

(73,300)

(3.99)

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS)

(Amounts in thousands of euros)
Net loss

Elements that may be reclassified subsequently to income (loss)

Currency translation adjustment

Elements that may not be reclassified subsequently to income (loss)

Remeasurement of defined benefit liabilities

Tax effect

Other comprehensive income (loss)

Comprehensive income (loss)

12/31/2018

12/31/2019

12/31/2020

(38,224)

(62,659)

(73,300)

15 

(60)

2 

(43)

(38,267)

1,237 

(38)

0 

1,199 

(61,460)

400 

(19)

— 

381 

(72,919)

F-3

CONSOLIDATED STATEMENT OF FINANCIAL POSITION

(Amounts in thousands of euros)
ASSETS

Non-current assets

Intangible assets

Property, plant and equipment

Right of use

Other non-current financial assets

Total non-current assets

Current assets

Other current financial assets

Inventories

Trade and other receivables

Other current assets

Cash and cash equivalents

Total current assets

TOTAL ASSETS

(Amounts in thousands of euros)
LIABILITIES AND SHAREHOLDERS' EQUITY

Shareholders’ equity

Share capital

Premiums related to share capital

Reserves

Translation reserve

Net loss for the period

Total shareholders’ equity

Non-current liabilities

Provisions - non-current portion

Financial liabilities – non-current portion

Derivative liabilities - non current portion

Lease liabilities - non-current portion

Deferred tax

Total Non-current liabilities

Current liabilities

Provisions - current portion

Financial liabilities – current portion

Derivative liabilities - current portion

Lease liabilities - current portion

Trade and other payables

Other current liabilities

Total current liabilities

TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY

Notes

December 31, 2018 December 31, 2019 December 31, 2020

As of

4.1.1

4.1.2

4.2

4.3

4.3

4.4

4.5

4.5

4.6

1,613 

15,274 

— 

1,046 

17,933 

— 

1,396 

30 

14,111 

134,371 

149,908 

167,841 

603 

25,632 

10,009 

718 

36,962 

41 

358 

36 

7,975 

73,173 

81,583 

118,545 

589 

20,862 

8,228 

1,091 

30,770 

59 

— 

4 

5,123 

44,446 

49,632 

80,402 

Notes

December 31, 2018 December 31, 2019 December 31, 2020

As of

1,794 

281,744 

(99,524)

(188)

(38,224)

145,602 

347 

1,243 

— 

— 

— 

1,590 

— 

776 

— 

— 

16,656 

3,217 

20,649 

167,841 

1,794 

281,688 

(136,607)

1,344 

(62,659)

85,560 

506 

1,321 

— 

11,278 

— 

13,105 

71 

99 

— 

1,425 

13,775 

4,510 

19,880 

118,545 

2,006 

120,705 

(24,616)

1,744 

(73,300)

26,539 

652 

14,379 

288 

9,197 

— 

24,516 

— 

2,265 

129 

1,607 

20,910 

4,436 

29,347 

80,402 

4.7

4.8

4.9

4.9.1

4.10

4.8

4.9

4.9.1

4.10

4.11

4.11

F-4

CONSOLIDATED STATEMENT OF CASH FLOWS

(Amounts in thousands of euros)

Cash flows from operating activities

Net loss

Reconciliation of net loss and the cash used for operating activities

Gain or loss on exchange

Amortization and depreciation

Provision
Change in fair value of derivative liabilities
Expenses related to share-based payments

Gain or loss on disposal

Interest expense (income)

Income tax expense (income)

Operating cash flow before change in working capital

(Increase) decrease in inventories

(Increase) decrease in trade and other receivables

(Increase) decrease in other current assets

Increase (decrease) in trade and other payables

Increase (decrease) in other current liabilities

Change in working capital

Net cash flow used in operating activities

Cash flows from investing activities

Acquisition of property, plant and equipment

Acquisition of intangible assets

Increase in non-current & current financial assets

Disposal of property, plant and equipment

Decrease in non-current & current financial assets

Net cash flow used in investing activities

Cash flows from financing activities

Capital increases, net of transaction costs

Subscription of warrants

Proceeds from borrowings, net of transaction costs

Repayment of borrowings

Allowance received from a lessor

Repayment of lease liability (IFRS 16)

Interests received (paid)

Other change in financial liabilities
Net cash flow from (used in) financing activities

Exchange rate effect on cash in foreign currency

Increase (Decrease) in cash and cash equivalents

Net cash and cash equivalents at the beginning of the period

Net cash and cash equivalents at the closing of the period

Cash paid for interest

Cash paid for income tax

Notes

12/31/2018

12/31/2019

12/31/2020

(38,224)

(62,659)

(73,300)

(3,965)

797 

73 
— 
2,449 

— 

4 

2 

(38,864)

(1,219)

47 

(8,321)

(8)

508 

(8,993)

(47,857)

(5,635)

(3)

(812)

— 

— 

(673)

4,216 

192 
— 
1,359 

42 

484 

(1)

3,028 

4,991 

57 
(652)
1,179 

22 

2,150 

3 

(57,040)

(62,522)

1,038 

(7)

6,150 

5,993 

556 

13,730 

(43,310)

(20,117)

(16)

(119)

— 

414 

358 

33 

2,829 

6,913 

669 

10,802 

(51,720)

(1,139)

(2)

(421)

83 

4 

(6,450)

(19,838)

(1,475)

— 

— 

— 

(818)

— 

— 

— 

— 

(818)

3,981 

(51,144)

185,515 

134,371 

14 

— 

— 

47 

— 

(738)

1,866 

(978)

(195)

38 

40 

1,910 

(61,198)

134,371 

73,173 

195 

— 

118 

12 

27,134 

(62)

188 

(1,615)

(326)

— 

25,449 

(981)

(28,727)

73,173 

44,446 

326 

— 

3.4

3.4

3.3

4.1.2

3.6

4.4

4.5

4.5

4.11

4.11

4.1.1

4.3

4.7

4.9

4.9

4.1

4.1

4.9

4.6

4.6

F-5

CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS’ EQUITY

(Amount  in  thousands  of  euros,  except
number of shares)

Share capital

Premiums
related to the
share capital

Reserves

Translation
reserve

Net income
(loss)

Total
shareholders’
equity

1,794 

281,744 

(68,385)

(203)

Total comprehensive income (loss)

— 

Allocation of prior period loss

At December 31, 2017

Net loss for the period

Other comprehensive income

Total comprehensive income (loss)

Allocation of prior period loss

Issue of ordinary shares

Share-based payment

At December 31, 2018

Net loss for the period

Other comprehensive income

Issue of ordinary shares

Issue of warrants

Share-based payment

Reclassification

At December 31, 2019

Net loss for the period

Other comprehensive income

Total comprehensive income (loss)

Allocation of prior period loss (2)

Allocation of reserves on premiums (2)

Issue of ordinary shares (1)

Issue of warrants

Share-based payment

At December 31, 2020

— 

0 

— 

0 

1,794 

281,744 

— 

59

(115)

(58)

(58)

(33,530)

2,449 

(99,524)

(38)

(38)

(38,224)

1,359 

(180)

1,794 

281,688 

(136,607)

— 

212

— 

(54,208)

(119,282)

12,507 

2,006 

120,705 

(19)

(19)

(8,451)

119,282 

1,179 

(24,616)

15 

15 

(188)

1,237 

1,237 

295
1,344 

400 

400 

(33,530)

(38,224)

(38,224)

33,530 

(38,224)

(62,659)

(62,659)

38,224 

(62,659)

(73,300)

(73,300)

62,659 

1,744 

(73,300)

181,420 

(38,224)

(43)

(38,267)

— 

0 

2,449 

145,602 

(62,659)

1,199 

(61,460)

— 

— 

59 

1,359 

— 

85,560 

(73,300)

381 

(72,919)

— 

— 

12,719 

0 

1,179 

26,539 

(1) Includes €12,600 thousand linked to the conversion of convertible notes (refer to note 4.9.1).

(2) In accordance with the decision of the shareholders meeting dated June 26, 2020.

F-6

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

The  notes  are  an  integral  part  of  the  accompanying  Consolidated  Financial  Statements.  The  Consolidated  Financial  Statements  were  approved  and
authorized for issuance by the Board of Directors on March 5, 2021.

1. DESCRIPTION OF THE BUSINESS

ERYTECH Pharma S.A. (“ERYTECH,” and together with its subsidiary the “Company”) is incorporated in Lyon, France, and was founded in 2004 to
develop and market innovative red blood cell-based therapeutics for cancer and orphan diseases. The Company’s most advanced product candidates are
being developed for the treatment of pancreatic cancer.

The  Company  completed  its  initial  public  offering  on  Euronext  Paris  in  May  2013,  raising  €17.7  million,  and  on  the  Nasdaq  Global  Select  Market  in
November 2017, raising €124.0 million ($144.0 million on a gross basis before deducting offering expenses).

The Company has incurred losses and negative cash flows from operating activities since its inception and had shareholders’ equity of €26,539 thousand as
of December 31, 2020 as a result of several financing rounds, including an initial public offering. The Company anticipates incurring additional losses until
such time, if ever, that it can generate significant revenue from its product candidates in development. The COVID-19 pandemic and the measures decided
by the governments of the countries in which the Company operates have resulted in a delay of 3 to 4 months in patient enrollment in the TRYbeCA-1 trial
and thus in the interim analysis. The end of recruitment and interim analysis occurred in December 2020 and February 2021, respectively.

Substantial additional financing will be needed by the Company to fund its operations and to commercially develop its product candidates. The situation on
the financial markets and the delay in the TRYbeCA-1 trial due to the COVID-19 pandemic may impair the ability of the Company to raise capital when
needed or on attractive terms.

The  Company’s  future  operations  are  highly  dependent  on  a  combination  of  factors,  including:  (i)  the  success  of  its  research  and  development;
(ii)  regulatory  approval  and  market  acceptance  of  the  Company’s  proposed  future  products;  (iii)  the  timely  and  successful  completion  of  additional
financing;  and  (iv)  the  development  of  competitive  therapies  by  other  biotechnology  and  pharmaceutical  companies.  As  a  result,  the  Company  is  and
should continue, in the short to mid-term, to be financed through partnership agreements for the development and commercialization of its drug candidates
and through the issuance of new debt or equity instruments.

The accompanying consolidated financial statements and related notes (the “Consolidated Financial Statements”) present the operations of ERYTECH
Pharma S.A. and its subsidiary, ERYTECH Pharma, Inc.

Registered office of ERYTECH Pharma S.A.: 60 avenue Rockefeller, 69008, Lyon, France.

Major events of 2020

Business

February 2020:

•

•

The Company received from Bpifrance a reimbursable advance of €2,979 thousand and a subsidy of €294 thousand (recorded in 2019) under the
milestone n°6 of the TEDAC project.

The Company entered into a strategic partnership with the German Red Cross Blood Donor Service Baden-Württemberg-Hessen (GRCBDS) for
the supply of donor red blood cells to manufacture its product candidates, including eryaspase, in Europe and to complement the existing alliance
with the French Blood Bank (EFS).

March 2020:

•

•

The  TRYbeCA-1  trial  has  continued  to  progress  despite  the  challenges  caused  by  the  impact  of  the  COVID-19  global  pandemic,  and  patient
enrollment has continued notwithstanding the increasing difficulties experienced by hospitals to organize the proper treatment and follow-up.

The  independent  data  monitoring  committee  (IDMC)  of  the  TRYbeCA-1  trial  reviewed  the  safety  data  of  the  first  320  patients  enrolled  and
treated.  In  line  with  the  two  earlier  safety  reviews  of  the  trial,  no  safety  issues  were  identified,  and  the  IDMC  recommended  the  Company  to
continue the trial as planned.

F-7

April 2020:

•

The U.S. Food and Drug Administration (FDA) has granted the Company Fast Track Designation for the development of eryaspase as a second-
line treatment of patients with metastatic pancreatic cancer.

May 2020:

•

The Company announced it will be part of EVIDENCE, a public-private consortium supported by the European Union in the framework of the EU
Horizon 2020 program. The EVIDENCE consortium, consisting of leading experts in the field of red blood cell research, will explore how red
blood cells are influenced by their extra-cellular environment.

June 2020:

•

•

The  Company  announced  that  the  ongoing  Phase  2  clinical  trial,  sponsored  by  the  Nordic  Society  of  Paediatric  Haematology  and  Oncology
(NOPHO) of eryaspase in second-line acute lymphoblastic leukemia (ALL) patients has reached its target enrollment of 50 patients. Preliminary
findings of the trial suggest that eryaspase achieved the target level and duration of asparaginase activity in these patients. Moreover, the addition
of  eryaspase  to  the  combination  chemotherapy  was  associated  with  an  acceptable  tolerability  profile,  enabling  the  majority  of  these  patients  to
receive their fully intended courses of asparaginase. Recent data have confirmed that discontinuation of asparaginase therapy in ALL patients has
been associated with inferior disease free survival.

The Company signed a financing agreement with Luxembourg-based European High Growth Opportunities Securitization Fund, represented by its
asset manager European High Growth Opportunities Manco SA (entities related to Alpha Blue Ocean), in the form of convertible notes with share
subscription  warrants  attached  (“OCABSA”),  allowing  a  potential  financing  arrangement  of  up  to  a  maximum  of  €60  million,  subject  to  the
regulatory limit of 20% dilution.

July/August 2020:

• As part of the convertible notes’ agreement signed in June 2020, the Company issued two tranches of €3 million each (60 OCABSA) on July 6,

2020 and on August 24, 2020, respectively.

September 2020:

•

The Company established a financing facility with the implementation of an at-the-market program on Nasdaq with Cowen allowing the Company
to issue and sell ordinary shares in the form of American Depositary Shares ("ADSs"), to eligible investors at market prices, with aggregate gross
sales proceeds of up to $30 million (subject to a regulatory limit of 20% dilution), from time to time, pursuant to the terms of a sales agreement.

November 2020:

•

The Company received two loans of €5.0 million each, in the form of State-Guaranteed Loan (Prêt Garanti par l’Etat, or PGE, in France) with
Bpifrance and Société Générale in the context of the COVID-19 pandemic.

November/December 2020:

• As  part  of  the  convertible  notes’  agreement  signed  in  June  2020,  the  Company  issued  three  tranches  of  €3.0  million  each  (60  OCABSA)  on

November 17, 2020, December 7, 2020 and December 22 , respectively.

December 2020:

•

The  Company  announced  positive  results  from  eryaspase  Phase  2  Trial  in  Acute  Lymphoblastic  Leukemia  ("ALL").  The  study  confirms  the
potential  of  eryaspase  as  an  attractive  treatment  option  for  ALL  patients  with  hypersensitivity  to  PEG-asparaginase.  The  Phase  2  NOR-
GRASPALL-2016  trial  evaluated  the  safety  and  pharmacological  profile  of  eryaspase  in  ALL  patients  who  had  previously  experienced
hypersensitivity  reactions  to  pegylated  asparaginase  therapy.  The  trial  was  conducted  by  the  Nordic  Society  of  Pediatric  Hematology  and
Oncology (NOPHO). Primary objectives of the trial were asparaginase enzyme activity and safety. Both endpoints were met.

•

The Company announced the completion of enrollment in the TRYbeCA-1 Phase 3 trial in second-line pancreatic cancer.

F-8

Management

March 2020:

• Appointment of Melanie Rolli, M.D., as member of the Company’s Board of Directors.

October 2020:

• Appointment of Stewart Craig as Chief Technical Officer

Major events of 2019

Business

May 2019:

• Acceptance  by  the  U.S.  Food  and  Drug  Administration  (FDA)  of  the  Company’s  Investigational  New  Drug  (IND)  application  for  eryaspase,
consisting of the enzyme L-asparaginase encapsulated inside donor derived red blood cells. The acceptance of the IND will enable ERYTECH to
initiate enrollment at U.S. clinical trial sites for its ongoing pivotal Phase 3 TRYbeCA-1trial evaluating eryaspase in second-line pancreatic cancer.

June 2019:

• Opening of a new U.S.-based GMP manufacturing facility in Princeton, New Jersey, United States. The facility will support production capacity

needs for eryaspase, the Company’s lead product candidate, for patients in the United States.

•

•

The Company signed an agreement with SQZ Biotechnologies (SQZ), a cell therapy company developing novel treatments in multiple therapeutic
areas, to collaborate on the advancement of novel red blood cell-based therapeutics for immune modulation. The Company is eligible to receive up
to $57 million in combined upfront and potential development, regulatory and commercial milestone payments for the first product successfully
developed by SQZ under this agreement. The Company will also be eligible to receive sales royalties.

Enrollment of first patient in the Phase 2 clinical trial, named TRYbeCA-2, evaluating the Company’s lead product candidate, eryaspase, for the
treatment of first line triple negative breast cancer (TNBC).

November 2019:

•

•

The  Company  achieved  two  important  milestones  for  the  TRYbeCA-1  Phase  3  clinical  trial  of  eryaspase  in  second  line  metastatic  pancreatic
cancer. TRYbeCA-1 was opened for patient enrollment in the United States and the first site was activated. The manufacturing of eryaspase for the
patients to be treated in the United States will take place at the Company’s newly established manufacturing facility in Princeton, New Jersey.

Publication of the full results from the Phase 2b trial evaluating eryaspase in metastatic pancreatic in the European Journal of Cancer.

Management

January 2019:

•

Eric Soyer was appointed as Deputy General Manager of the Company.

June 2019:

• Dr. Jean-Paul Kress was appointed as Chairman of the Board of Directors by the Board of Directors following his appointment as board member
at the Company’s Annual General Meeting of Shareholders held on June 21, 2019. Dr. Kress has over 25 years’ experience as a senior executive
officer  in  international  biotechnology  and  pharmaceutical  groups.  He  was  Chairman  and  Chief  Executive  Officer  of  Syntimmune  (Cambridge,
MA, US) until the end of 2018, when the company was acquired by Alexion Pharmaceuticals.

F-9

Major events of 2018

June 2018:

•

•

The Company announced that it will focus its development efforts for the product candidate eryaspase on the potential treatment of selected solid
tumor indications. The Company also announced its plans to cease the development program for eryaspase in ALL, including the withdrawal of its
previously submitted European MAA for eryaspase for the treatment of relapsed and refractory ALL.

The Company signed a lease agreement in order to establish a manufacturing facility in the United States (Princeton, New Jersey).

2. ACCOUNTING RULES AND METHODS

2.1. Basis of preparation

The Consolidated Financial Statements have been prepared in accordance with the underlying assumptions of going concern as the Company’s loss-making
situation is explained by the innovative nature of the products developed, therefore involving a multi-year research and development phase.

The Company has historically financed its growth by strengthening its equity in the form of capital increases and issuance of convertible notes.

At the approval date of the financial statements, the Board of Directors believes that the Company will be able to fund its operations until the first quarter
2022, considering:

•

•

•

•

Cash  and  cash  equivalents  held  by  the  Company  amounted  to  €44.4  million  as  of  December  31,  2020.  They  are  composed  of  cash  and  term
deposits readily available without penalty;

Shares sold under the at-the-market (“ATM”) program in February 2021, for gross proceeds of approximately €6.6 million ;

The issuance of a tranche of convertibles notes of €3.0 million in March 2021, as part of the financing agreement signed with Luxembourg-based
European High Growth Opportunities Securitization Fund

The  possibility  of  further  use  of  this  financing  agreement  allowing  a  potential  fundraising  up  to  a  maximum  of  €42.0  million  until  June  2022,
subject  to  the  regulatory  limit  of  20%  dilution,  representing  approximately  €33.0  million  based  on  the  closing  market  price  the  day  before  the
approval date of the Consolidated Financial Statements (€7.10).

Considering the above factors and assumptions, the Company believes that it is able to fund its operations during the 12 months after the closing date.

From  this  date,  the  Company  will  have  to  find  additional  funding.  Various  financing  sources  are  considered  among  the  issuance  of  new  debt  or  equity
instruments and partnership agreements.

The Consolidated Financial Statements have been prepared in accordance with the historical cost principle with the exception of certain categories of assets
and liabilities measured at fair value in accordance with IFRS.

All amounts are expressed in thousands of euros, unless stated otherwise.

2.2 Statement of compliance

The  Consolidated  Financial  Statements  have  been  prepared  in  accordance  with  International  Financial  Reporting  Standards  (“IFRS”)  as  issued  by  the
International Accounting Standard Board (“IASB”) and were approved and authorized for issuance by the Board of Directors of the Company on March 5,
2021. They will be subject to the approval of the General Meeting on June 25, 2021.

Due to the listing of ordinary shares of the Company on Euronext Paris and in accordance with the European Union’s regulation No. 1606/2002 of July 19,
2002, the Consolidated Financial Statements of the Company are also prepared in accordance with IFRS, as adopted by the European Union (EU).

As of December 31, 2020, all IFRS that the IASB had published and that are mandatory are the same as those endorsed by the EU and mandatory in the
EU. As a result, the Consolidated Financial Statements comply with International Financial Reporting Standards as published by the IASB and as adopted
by the EU.

F-10

IFRS include International Financial Reporting Standards (“IFRS”), International Accounting Standards (“IAS”), as well as the interpretations issued by
the Standing Interpretations Committee (“SIC”), and the International Financial Reporting Interpretations Committee (“IFRS IC”). The main accounting
methods  used  to  prepare  the  Consolidated  Financial  Statements  are  described  in  the  corresponding  notes.  These  methods  were  used  for  all  periods
presented.

The Company adopted the following standards, amendments and interpretations that are applicable as at January 1, 2020:

• Amendments to References to the conceptual framework in IFRS standards ;

• Amendments to IAS 1 and IAS 8: Definition of "material";

• Amendments to IFRS 3: Definition of a business;

• Amendments to IFRS 9, IAS 39 and IFRS 7: Interest rate benchmark reform (phase 1).

These new texts did not have any significant impact on the Company’s results or financial position.

The standards and interpretations that are optionally applicable to the Company as of December 31, 2020 were not applied in advance.

Recently issued accounting pronouncements that may be relevant to the Company’s operations are as follows:

• Amendment to IFRS 16 : Covid 19-Related rent concessions;

• Amendments to IAS 1 : Classification of liabilities as current or non-current;

• Amendments to IAS 16 : Property, Plant and Equipment - Proceeds before intended use .

• Amendments to IAS 37 : Onerous contracts - cost of fulfilling a contract

• Annual Improvements 2018-2020.

2.3 Basis of consolidation

In  accordance  with  IFRS  10  Consolidated  Financial  Statements  (“IFRS  10”),  an  entity  is  consolidated  when  it  is  controlled  by  the  Company.  The
Company  controls  an  entity  when  it  is  exposed  or  has  rights  to  variable  returns  from  its  involvement  with  the  entity  and  has  the  ability  to  affect  those
returns through its power over the entity. All intercompany balances, transactions and dividends are eliminated in full. The Company has one subsidiary for
which no non-controlling interest is recognized.

ERYTECH Pharma, Inc.

There was no change in the consolidation scope over the years presented.

2.4. Foreign currencies

Date of
Incorporation

April 2014

Percent of
Ownership Interest

Accounting Method

100%

Consolidated

Functional Currency and Translation of Financial Statements into Presentation Currency

The Consolidated Financial Statements are presented in euros, which is also the functional currency of the parent company, ERYTECH Pharma S.A. (the
“Parent Company”). The statement of financial position of the consolidated entity having a functional currency different from the euro are translated into
euros  at  the  closing  exchange  rate  (spot  exchange  rate  at  the  statement  of  financial  position  date)  and  the  statement  of  income  (loss),  statement  of
comprehensive income (loss) and statement of cash flow of such consolidated entity are translated at the average exchange rate for the period, except if
exchanges rates fluctuate significantly. The resulting translation adjustment is included in other comprehensive income (loss) as a cumulative translation
adjustment.

Exchange rate (USD per EUR)

Weighted average rate

Closing rate

12/31/2018

12/31/2019

12/31/2020

1.1815

1.1450

1.1196

1.1234

1.1413

1.2271

F-11

Conversion of Foreign Currency Transactions

Foreign  currency  transactions  are  converted  to  functional  currency  (euros)  at  the  exchange  rate  applicable  on  the  transaction  date.  At  the  closing  date,
foreign  currency  monetary  assets  and  liabilities  are  converted  at  the  exchange  rate  prevailing  on  that  date.  The  resulting  exchange  gains  or  losses  are
recorded in the consolidated statement of income (loss) in “Financial income (loss)”.

The loan in U.S. dollars from the Parent Company to ERYTECH Pharma, Inc. was considered as part of the net investment in a foreign operation until the
end of the third quarter of 2019, when the loan was partly converted into capital and partly restructured as a medium term loan. As a result of this financial
restructuring, the loan is no longer qualified as an investment in a foreign operation. Exchange rate differences are recognized in the consolidated statement
of income (loss) since October 1, 2019.

2.5 Use of estimates and judgments

Preparation of the consolidated financial statements in accordance with the rules prescribed by the IFRS requires the use of estimates and the formulation
of assumptions having an impact on the financial statements. These estimates can be revised where the circumstances on which they are based change. The
actual results may therefore differ from the estimates initially formulated. The use of estimates and judgment relate primarily to the measurement of:

•

•

•

the share-based payments in accordance with IFRS 2 (see note 3.3.3);

the fair value of the convertible notes' agreement and its classification in accordance with IFRS 9 and IAS 32 (see note 4.9.1);

the hospital costs accrual (see note 4.11).

2.6 Presentation of the statement of income (loss)

The  Company  presents  its  statement  of  income  (loss)  by  function.  As  of  today,  the  main  activity  of  the  Company  is  the  research  and  development.
Consequently, only “research and development expenses” and “general administrative expenses” functions are considered to be representative. The detail
of the expenses by nature is disclosed in note 3.2.

2.7 Presentation of the statement of cash flows

The  consolidated  statements  of  cash  flows  are  prepared  using  the  indirect  method  and  separately  present  the  cash  flows  associated  with  operating,
investing, and financing activities.

2.8 Segment reporting

In accordance with IFRS 8 Operating Segments ("IFRS 8") , reporting by operating segment is derived from the internal organization of the Company’s
activities; it reflects management’s viewpoint and is established based on internal reporting used by the chief operating decision maker (the Chief Executive
Officer) to allocate resources and to assess performance.

Information per business segment

The  Company  operates  in  a  single  operating  segment:  the  conducting  of  research  and  development  of  innovative  red  blood  cell-based  therapeutics  for
cancer and orphan diseases in order to market them in the future.

Information per geographical segment

Revenues from external customers (amounts in thousands of euros)

12/31/2018

12/31/2019

12/31/2020

France

United States

Total

72 

—

72 

105 

969 

1,074 

61 

185 

246 

F-12

Non current assets (amounts in thousands of euros)

12/31/2018

12/31/2019

12/31/2020

France

United States

Total

2.9  Events after the close of the reporting period

4,912 

11,975 

16,887 

9,616 

26,629 

36,245 

8,414 

21,265 

29,679 

The consolidated statement of financial position and the consolidated statement of income (loss) of the Company are adjusted to reflect the subsequent
events that alter the amounts related to the situations that exist as of the closing date.

January 2021:

•

The Company announced the first patient enrolled in a Phase 1 investigator sponsored trial (IST), named rESPECT, of eryaspase for the first-line
treatment of pancreatic cancer. The rESPECT Phase 1 IST will be conducted by Dr Marcus Noel (Associate Professor of Medicine at Georgetown
University, Washington DC, USA). The trial will enroll patients who have received no prior chemotherapy for the treatment of locally advanced or
metastatic pancreatic cancer.

February 2021:

•

The Company sold 744,186 shares under the at-the-market (“ATM”) program, for gross proceeds of approximately €6.6 million ($8.0 million).

March 2021:

• As part of the convertible notes’ agreement signed in June 2020, the Company issued a tranche of €3.0 million (60 OCABSA) on March 2, 2021.

F-13

3. NOTES RELATED TO THE CONSOLIDATED STATEMENT OF INCOME (LOSS)

3.1 Operating income

Accounting policies

Research tax credit

The research tax credit (Crédit d’Impôt Recherche or “CIR”) (the “Research Tax Credit”) is granted to companies by the French tax authorities in order to
encourage them to conduct technical and scientific research. Companies that prove that they have expenditures that meet the required criteria (research
expenditures located in France or, since January 1, 2005, within the European Union or in another State that is a party to the Agreement on the European
Economic Area that has concluded a tax treaty with France that contains an administrative assistance clause) receive a tax credit that (a) can be used for the
payment  of  the  corporate  tax  due  for  the  fiscal  year  in  which  the  expenditures  were  made  and  the  next  three  fiscal  years,  or,  (b)  as  applicable,  can  be
reimbursed in cash. The expenses taken into account for the calculation of the Research Tax Credit involve only research expenses.

The Company benefits from the Research Tax Credit since its inception.

The CIR is presented under operating income as it meets the definition of government grant as defined in IAS 20 Accounting for Government Grants and
Disclosure of Government Assistance (“IAS 20”).

Subsidies

Subsidies received that are not repayable by the Company are recognized as operating income where there exists reasonable assurance that the Company
will comply with the conditions attached to the subsidies and the subsidies will be received.

Subsidies that are upfront payments are presented as deferred revenue and recognized ratably through income over the duration of the research program to
which the subsidy relates.

A  public  subsidy  that  is  to  be  received  either  as  compensation  for  expenses  or  for  losses  already  incurred,  or  for  immediate  financial  support  of  the
Company without associated future costs, is recognized as operating income when there exists reasonable assurance that the subsidies will be received.

Revenues from licenses or other contracts

For each of its partnership agreements, the Company determines if it acts as a principal or as an agent in accordance with IFRS 15 Revenue from contracts
with customers (“IFRS 15").

Partnership with Orphan Europe NOPHO clinical trial

Within the context of this agreement, Orphan Europe agreed to finance the NOPHO study for a total amount of €600 thousand. This revenue is recognized
in “other income” in the statement of income (loss).

License agreement with SQZ Biotechnologies (“SQZ”)

Under the terms of the agreement, the Company has granted to SQZ Biotechnologies an exclusive worldwide license to develop antigen specific immune
modulating therapies employing red blood cell-based approaches. In accordance with IFRS 15, this agreement grants to SQZ Biotechnologies a right to use
the underlying intellectual property ("static license"). Consequently, the income linked to the upfront payment ($1.0 million) was recognized in June 2019
when SQZ Biotechnologies could begin to use the licensed intellectual property.

The Company does not generate any revenue from the sale of its products considering its stage of development.

(amounts in thousands of euros)
Research Tax Credit

Subsidies

Revenues from licenses or other contracts

Total

12/31/2018

12/31/2019

12/31/2020

4,375 

— 

72 

4,447 

3,915 

294 

1,074 

5,283 

3,430 

42 

246 

3,718 

F-14

Revenues from licenses or other contracts

Revenues from licenses or other contracts in 2019 are mainly linked to the license agreement signed with SQZ Biotechnologies (see note 7).

3.2 Operating expenses by nature

3.2.1

Research and development expenses

 For the year ended December 31, 2018 (amounts in thousands of euros)

R&D

Clinical studies

Total

Consumables

Rental and maintenance

Services, subcontracting and fees

Personnel expenses

Depreciation and amortization

Other

Total

1,061 

279 

5,043 

3,013 

68 

38 

9,502 

728 

526 

14,589 

7,901 

192 

30 

23,966 

1,789 

805 

19,632 

10,914 

260 

68 

33,468 

 For the year ended December 31, 2019 (amounts in thousands of euros)

R&D

Clinical studies

Total

Consumables

Rental and maintenance

Services, subcontracting and fees

Personnel expenses

Depreciation and amortization

Other

Total

668 

171 

3,543 

3,056 

307 

50 

7,795 

6,340 

1,125 

21,753 

11,911 

3,229 

40 

44,398 

7,008 

1,296 

25,296 

14,967 

3,536 

90 

52,193 

 For the year ended December 31, 2020 (amounts in thousands of euros)

R&D

Clinical studies

Total

Consumables

Rental and maintenance

Services, subcontracting and fees

Personnel expenses

Depreciation, amortization & provision

Other

Total

54 

117 

1,099 

2,268 

283 

25 

3,846 

6,732 

1,162 

28,487 

13,361 

3,951 

41 

53,734 

6,786 

1,279 

29,586 

15,629 

4,234 

66 

57,580 

The increase in research and development expenses for periods presented is mainly due to:

•

•

The increase in external services mainly linked to the ongoing clinical trials of eryaspase for the treatment of solid tumors, particularly with the
commencement of the Phase 3 clinical trial for the treatment of pancreatic cancer in September 2018;

The increase in depreciation, amortization & provision between 2018 and 2019 related mainly to :

◦

◦

the recognition of an impairment in 2019 on a production process recognized in intangible asset (see note 4.1.1),

the commissioning of the Princeton, New Jersey manufacturing facility in the second half of 2019;

•

The increase in research and development personnel expenses (see note 3.3).

F-15

3.2.2. General and administrative expenses

General and administrative expenses (amounts in thousands of euros)

12/31/2018

12/31/2019

12/31/2020

Consumables

Rental and maintenance

Services, subcontracting and fees

Personnel expenses

Depreciation and amortization

Other

Total

33 

1,584 

5,409 

5,925 

529 

1,120 

527 

1,117 

7,964 

6,331 

751 

474 

224 

1,070 

5,962 

6,573 

686 

455 

14,600 

17,164 

14,970 

The significance of services, subcontracting and fees in 2019 is mainly due to costs incurred as part of the establishment of the Princeton manufacturing
facility.

3.3 Personnel expenses

3.3.1.

Research and development expenses

 For the year ended December 31, 2018 (amounts in thousands of euros)

R&D

Clinical studies

Total

Wages and salaries

Share-based payments (employees and executive management)

Social security expenses

Total personnel expenses

1,887 

334 

792 

3,013 

5,393 

824 

1,684 

7,901 

7,281 

1,158 

2,475 

10,914 

 For the year ended December 31, 2019 (amounts in thousands of euros)

R&D

Clinical studies

Total

Wages and salaries

Share-based payments (employees and executive management)

Social security expenses

Total personnel expenses

2,029 

223 

804 

3,056 

8,893 

465 

2,553 

11,911 

10,922 

688 

3,357 

14,967 

 For the year ended December 31, 2020 (amounts in thousands of euros)

R&D

Clinical studies

Total

Wages and salaries

Share-based payments (employees and executive management)

Social security expenses

Total personnel expenses

1,579 

24 

665 

2,268 

9,886 

507 

2,968 

13,361 

11,465 

531 

3,633 

15,629 

The  increase  in  personnel  expenses  is  mainly  due  to  an  increase  in  research  and  development  employee  headcount.  The  weighted  average  full-time
employees (FTE) was 99 in 2018, 156 in 2019 and 166 in 2020.

3.3.2. General and administrative expenses

General and administrative expenses (amounts in thousands of euros)

12/31/2018

12/31/2019

12/31/2020

Wages and salaries

Share-based payments (employees and executive management)

Social security expenses

Total personnel expenses

3,721 

849 

1,355 

5,925 

4,376 

522 

1,433 

6,331 

4,393 

532 

1,648 

6,573 

The weighted average full-time employees (FTE) was 39 in 2018, 41 in 2019 and 41 in 2020.

F-16

3.3.3.

Share-based payments (IFRS 2)

Accounting policies

The Company has applied IFRS 2 Share-based payment (“IFRS 2”)  to  all  equity  instruments  e.g.  free  shares  (“AGA”), stock options (“SO”),  share
subscription  warrants  (“BSA”)  and  founder  subscription  warrants  (“BSPCE”)  granted  since  inception  to  its  employees,  members  of  the  Board  of
Directors or other individuals. Pursuant to IFRS 2, the cost of the remuneration granted with equity instruments is recognized as an expense in exchange
for an increase in the shareholders’ equity for the vesting period during which the rights to be enjoyed from the equity instruments are acquired. As such,
changes in value subsequent to the grant date have no effect on this initial measurement.

Fair value is estimated using the Black & Scholes valuation model (for BSA, SO and BSPCE valuation) and Monte-Carlo valuation model (for AGA
valuation). These models allow the Company to take into account the characteristics of the plan (exercise price, vesting period), the market data at the
grant date (volatility, expected dividends, repo margin), possible performance conditions attached to warrants and recipient behavior assumptions.

The Company has no legal or constructive obligation to repurchase or settle any of these equity instruments in cash.

Founder subscription warrants (“BSPCE”) plan

Types of securities

Maturity

BSPCE2012

BSPCE2014

May 20, 2020

January 22, 2024

 to which he subscribed
In the event of a beneficiary departure from the Company for any reason whatsoever, this beneficiary shall retain the BSPCE
prior  to  his  departure.  However,  in  the  event  of  a  beneficiary  departure  from  the  Company,  for  any  reason  whatsoever,  prior  to  subscription  of  the
BSPCE2014 to which the beneficiary has a right, the BSPCE2014 will be forfeited. In this situation, the BSPCE2014 not subscribed may be re-allocated to
other beneficiaries within the same category and/or replacing the person who left the Company.

2014

Share subscription warrants (“BSA”) plan

Types of securities

BSA2012

BSA2014

BSA2016

BSA2017

BSA2019

Vesting period

NA

NA

Maturity

May-2020

January-2024

Tranche 1 : 1 year
Tranche 2 : 2 years

Tranche 1 : 1 year
Tranche 2 : 2 years
Tranche 3 : 3 years

Depending of the grant
date
October-2021
January-2022

Depending of the grant
date
June-2022
January-2023

2 years

October-2022

F-17

The main assumptions used to determine the fair value of the plans granted in 2018, 2019 and 2020 are:

Number of warrants

Exercise price

Price of the underlying share

Expected dividends

Volatility (1)

Expected term

Fair value of the plan (in thousands of euros) (2)

Grant in January 2018

Grant in October 2019

40,500 BSA2017

75,000 BSA2019

€

€

€

€

18.00 

18.00 

0.00 %

43.94 %

T1 : 5.5 years
T2 : 6 years
T3 : 6.5 years

300 

3.71 

3.78 

0.00 %

33.41 %

2.5 years

59 

(1) based on the historical volatility observed on the ERYP index on Euronext

(2) BSA were granted at fair value in October 2019. Therefore, no expense was recognized under IFRS 2.

Stock options (“SO”) plan

Types of securities

SO2016

SO2017

SO2018

SO2019

SO2020

Vesting period (identical for all
plans)

Maturity

Depending of the
grant date
October-2026
January-2027
June-2027
October-2027

Depending of the
grant date
June-2027
January-2028

Tranche 1: 2 years
Tranche 2: 3 years

Depending of the
grant date
September-2028
January-2029
April-2029

The main assumptions used to determine the fair value of the plans granted in 2018, 2019 and 2020 are:

Depending of the
grant date
July-2029
October-2029

Depending of the
grant date
February-2030
July-2030

Number of options

Exercise price

Price of the underlying share

Expected dividends

Volatility (1)

Expected term

Fair value of the plan (in thousands of euros)

Number of options

Exercise price

Price of the underlying share

Expected dividends

Volatility (1)

Expected term

€

€

€

€

Grant in 
January 2018

Grant in September
2018

Grant in 
January 2019

97,203 SO2017

24,000 SO2018

38,025 SO2018

€

€

18.00 

18.00 

0.00 %

43.94 %

9.26 

8.75 

€

€

0.00 %

41.59 %

T1 : 6 years
T2 : 6.5 years

6.38 

6.38 

0.00 %

41.88 %

731 

80 

97 

Grant in 
April 2019

Grant in 
July 2019

Grant in 
October 2019

76,905 SO2018

59,123 SO2019

347,250 SO2019

7.20 

7.20 

€

€

0.00 %

41.65 %

5.78 

5.81 

€

€

0.00 %

41.00 %

T1 : 6 years
T2 : 6.5 years

4.25 

3.78 

0.00 %

40.69 %

Fair value of the plan (in thousands of euros)

217 

131 

447 

F-18

Number of options

Exercise price

Price of the underlying share

Expected dividends

Volatility (1)

Expected term

Grant in February
2020

Grant in 
July 2020

Grant in November
2020

41,950 SO2019

374,000 SO2020

75,000 SO2020

€

€

5.87 

5.51 

€

€

0.00 %

41.35 %

6.88 

6.56 

€

€

0.00 %

43.41 %

T1: 6 years
T2 : 6.5 years

6.14 

6.37 

0.00 %

44.32 %

Fair value of the plan (in thousands of euros)

84 

951 

199 

(1) based on the historical volatility observed on the ERYP index on Euronext

Free shares (“AGA”) plan

Types of securities

Vesting period

AGA2017

AGA2018

AGA2019

AGA2020

Tranche 1:1 year
Tranche 2: 2 years
Tranche 3: 3 years

Tranche 1: 1 year
Tranche 2: 2 years
Tranche 3: 3 years
Tranche 4 : 4 years
Tranche 5 : 5 years

The main assumptions used to determine the fair value of the plans granted in 2018, 2019 and 2020 are:

Number of shares

Price of the underlying share

Expected dividends

Volatility

Repo margin

Maturity

Performance criteria

ERYP
Performance multiple ("PM")

Fair value of the plan (in thousands of euros)

Number of shares

Price of the underlying share

Expected dividends

Volatility

Repo margin

Maturity

Performance criteria

ERYP
Performance multiple ("PM")

Fair value of the plan (in thousands of euros)

Grant in January 2018

Grant in January 2019

Grant in April 2019

40,500 AGA2016
113,940 AGA2017

36,150 AGA2018

94,200 AGA2018

€

€

18.00 

€

6.38 

€

0.00 %

42.17 %

5.00 %

3 years

(2)

20.12 
2 
1,145 

€

0.00 %

38.22 %

5.00 %

3 years

(2)

6.54 
2 
102 

€

7.20 

0.00 %

36.32 %

5.00 %

3 years

(2)

7.52 
2 
269 

Grant in October 2019

Grant in February 2020

Grant in July 2020

300,941 AGA2019

50,037 AGA2019

250,012 AGA2020

€

€

3.78 

€

5.51 

€

0.00 %

38.76 %

5.00 %

5 years

(2)

4.25 
3 
434 

€

0.00 %

38.55 %

5.00 %

5 years

(2)

5.87 
2.17 
133 

€

6.56 

0.00 %

42.23 %

5.00 %

5 years

(2)

6.88 
2 
877 

(1) based on the historical volatility observed on the ERYP index on Euronext

F-19

(2) performance criteria: progression of the quoted market share price between the grant date and the tranche acquisition date

•

Tri: (ERYPi - ERYP) / (ERYP x (PM – 1)) with ERYPi:

◦

average price of the 40-quoted market share price days before the acquisition date for grants until April 2019 ;

◦ maximum between the share price at the acquisition date and the average price of the 20-quoted market share price days before the grant

date discounted by 5% for grants from October 2019.

If TRi <=0% no shares granted are acquired

If Tri>100% all the shares granted are acquired

If 0%20%: 95% x (3bis) + [(8) - 15%]x (3bis)

11

Nominal value of the Share

Provided that (10)>(11), number of Shares to be issued:
(2) / (10) (rounded down to the nearest whole number)
Provided that (11)>(10), number of Shares to be issued:
(2) / (11) (rounded down to the nearest whole number)

12

EUR [0.10]

[·]

It is reminded that pursuant to the Agreement, the present notification shall be deemed received and confirmed by the Issuer twenty-four (24) hours after
sending.

Sincerely,

[Name of the Note holder]

24

CHARACTERISTICS OF THE WARRANTS

Schedule 6

1. Form

The Warrants shall be in registered form. Evidence of the rights of any Warrant holder shall be given by an inscription in its name in an account
kept by the Issuer in accordance with applicable laws and regulations.

2. Enjoyment

Subject to the terms and conditions of this Agreement, the Warrants are issued with full rights of enjoyment as from the date of their detachment
from the Notes to which they are attached (i.e. as from the date of the subscription of the relevant Notes).

3. Assignment, transfer and absence of admission to trading of the Warrants

3.1 The Warrants may be assigned or transferred without the prior consent of the Issuer, only to Affiliates of the Investor, subject to the prior

information of the Issuer and being provided that such Affiliate undertakes irrevocably, prior to this transfer, to retrocede the Warrants in question
and/or the Shares issued pursuant to the exercise of such Warrants to the Investor when this Affiliate ceases to be an Affiliate of the Investor.

3.2 To be effective vis-à-vis the Issuer and third parties, any transfer of Warrants shall be registered in the securities accounts and the transferor of any
Warrants  shall  be  deemed  to  be  the  holder  of  such  Warrants  until  the  name  of  the  transferee  is  entered  into  the  securities  accounts  in  respect
thereof.

3.3 Any transferee that becomes a Warrant holder, by whatever means and for whatever reason, shall have the benefit of, and be subject to, all of the
rights  and  obligations  arising  under  this  Agreement,  provided  that  such  permitted  transferee  shall  represent  that  it  falls  within  the  category  of
investors described in the EGM Resolution and to which the Note Warrants issuance has been reserved to (i.e. that the Investor is a natural or legal
person,  including  company,  trust  or  investment  fund,  organized  under  French  or  foreign  law,  that  regularly  invest  in  the  pharmaceutical,
biotechnological or medical technology sector).

3.4 The Warrants will not be admitted to trading on any financial market.

4. Term

The Warrants shall become automatically null and void sixty (60) months after their issuance date.

5. Exercise

5.1 Exercise of the Warrants into Shares of the Issuer; Exercise Period

Each  Warrant  holder  shall  have  the  right  at  its  option,  and  effective  at  any  time  prior  to  the  Warrant's  term  (the  "Warrant  Exercise  Period"),  to
exercise all or any of the Warrants into newly issued Shares in bearer form.

Each Warrant holder is allowed to make multiple exercises of Warrants.

5.2 Exercise Date; Exercise Notice

Each Warrant holder may exercise all or part of its Warrants on any Trading Day of its choice by delivering to the Issuer an exercise notice to the Issuer
(the "Warrant Exercise Notice") using the form attached in Schedule 7. The exercise date of the Warrants shall be the date of delivery of the Warrant
Exercise Notice (the "Warrant Exercise Date") during the Warrant Exercise Period.

The Issuer, after updating the securities account where the Warrants are registered, shall in turn send a notice to the Agent for the issuance of new
Shares to the relevant Warrant holder.

5.3 Exercise Ratio - Exercise Price

Each Warrant will give right to one (1) Share (the "Warrant Exercise Ratio") subject to any adjustment made in accordance with Paragraph 7 of this
Schedule 6.

The  new  Shares  resulting  from  the  exercise  of  the  Warrants  shall  be  issued  upon  payment  in  cash  by  the  relevant  Warrant  holder  of  the  Warrant
Exercise Price.

Such exercise shall not require the payment of any additional fee or charge by the relevant Warrant holder.

25

The Issuer shall promptly deliver freely tradable Shares to the relevant Warrant holder upon each exercise of Warrant(s). The issuance of the Shares
and their admission to trading on Euronext Paris shall occur no later than two (2) Trading Days after the Warrant Exercise Date. The reception of the
Warrant Exercise Price shall occur no later than 3pm Paris time two (2) trading days after the Warrant Exercise Date.

Subject to the right of the Issuer to use an existing additional delegation to the Board of Directors granted by another shareholders' general meeting of
the Issuer than the EGM in order to continue the financing program (in which case the Parties shall agree in good faith to amend the Agreement and
the  Warrants  to  the  extent  necessary),  if  the  Issuer  does  not  have  sufficient  shareholders'  authorizations  available  to  issue  new  Shares  to  a  Warrant
holder upon exercise of a Warrant, the exercised Warrant shall be acquired by the Issuer, on the Trading Day following the relevant Warrant Exercise
Date, for a price equal to (i) the Warrant Exercise Ratio multiplied by (ii) the difference between (a) the closing price of the Share on the day prior to
the Warrant Exercise Date and (b) the Warrant Exercise Price, as the case may be, divided by the Warrant Exercise Ratio. Such acquired Warrants shall
be cancelled by the Issuer.

Any payment to a Warrant holder made by the Issuer in accordance with Paragraph 5.3 of this Schedule 6 shall be made by the Issuer to the relevant
Warrant  holder  in  cash,  by  wire  transfer  to  a  bank  account  notified  by  the  relevant  Warrant  holder  to  the  Issuer,  in  immediately  available,  freely
transferable funds in Euros.

5.4 Rights attached to the Shares

The new Shares issued upon exercise of Warrant(s) shall be subject to all provisions of the By- Laws and to decisions of the general meetings of the
shareholders  of  the  Issuer.  The  new  Shares  shall  be  admitted  to  trading  on  Euronext  Paris  as  from  their  issuance,  will  carry  immediate  and  current
dividend rights ("jouissance courante") and will be fully assimilated to and fungible with the existing Shares.

6. Representation of the Warrant holders

6.1 As long as the Warrants are held by a single holder, such holder shall exercise under its own name all rights and powers granted by the French

Commercial Code to the "Masse" within the meaning of Article L. 228-103 of the French Commercial Code.

6.2 As soon as the Warrants having the same characteristics and being fungible are held by more than one holder, the holders shall appoint a

representative of the "Masse" in accordance with Articles L. 228-47 and L. 228-103 of the French Commercial Code.

For the avoidance of doubt, if certain of the Warrants no longer have the same characteristics, there will be several "Masses".

6.3 Where applicable, the rights of Warrant holders will be exercised in accordance with Article L. 228-103 paragraph 1 of the French Commercial

Code.

7. Protection of the Warrant holders

7.1 Upon completion of any of the following transactions:

1.
2.

3.

4.
5.
6.

7.
8.
9.

issue of securities carrying a preferential subscription right to shareholders,
increase  in  share  capital  by  capitalisation  of  reserves,  profits  or  share  premia,  and  by  distribution  of  free  shares,  or  stock  split  or
reverse stock split,
in  the  event  that  a  nominal  value  is  assigned  to  the  Shares,  an  increase  in  share  capital  of  the  Issuer,  without  issuing  Shares,  by
capitalisation of reserves, profits or share premia by increasing the nominal value of the Shares,
distribution of reserves in cash or in kind or a share premium,
allotment of bonus financial instruments other than Shares,
merger by acquisition (fusion par absorption), merger (fusion par création d'une nouvelle société), spin-off, division (scission) of the
Issuer,
buy-back of own Shares at a price that is higher than the Share price,
amortisation in share capital of the Issuer,
modification of the Issuer's allocation of its profits,

which the Issuer may carry out after the detachment date of the Warrants, the rights of the Warrants holders will be protected by adjusting the
Warrant Exercise Ratio and the Warrant Exercise Price in accordance with the following provisions.

In the event of an adjustment carried out in accordance with conditions 1 to 9 below, the new Warrant Exercise Ratio or Warrant Exercise Price
will be determined to one decimal place and rounded down to the nearest 10th (0.15 being

26

rounded up to the next highest 10th). Any subsequent adjustments will be carried out on the basis of such newly calculated and rounded Warrant
Exercise Ratio. However, the Warrants can only result in the delivery of a whole number of Shares.

1.

In the event of a financial transaction, conferring a preferential subscription right to existing shareholders, the new Warrant Exercise Ratio will be
determined by multiplying the Warrant Exercise Ratio in effect prior to the relevant transaction by the following formula:

share value ex-subscription right plus the value of the subscription right

share value ex-subscription right

For the purposes of calculating this formula, the values of the share ex-subscription right and of the subscription right will be determined on the
basis of the average of the opening prices of the Shares on Euronext Paris (as reported by Bloomberg) falling in the subscription period during
which the Shares and the subscription rights are listed simultaneously.

2.

In the event of an increase in share capital of the Issuer by capitalisation of reserves, profits or share premia and by distribution of free shares, or
in the event of a stock split or a reverse stock split the new Warrant Exercise Ratio will be determined by multiplying the Warrant Exercise Ratio
in effect prior to the relevant transaction by the following formula:

Number of shares after the transaction

Number of shares existing before the transaction

3.

4.

5.

•

In  the  event  of  an  increase  in  share  capital  of  the  Issuer  without  Shares  being  issued  by  means  of  a  capitalisation  of  reserves,  profits  or  share
premia performed by increasing the nominal value of the Shares, the nominal value of the Shares which may be delivered to the Warrants holders
upon exercise of their Warrants will be increased accordingly.

In the event of the distribution by the Issuer of reserves in cash or in kind or a share premium, the new Warrant Exercise Ratio will be determined
by multiplying the Warrant Exercise Ratio in effect prior to the relevant transaction by the following formula:

1

1 -

Amount of the distribution per share

Value of the share before distribution

For the purposes of calculating this formula, the value of the Shares before distribution will be determined on the basis of the weighted average of
the prices on Euronext Paris over the last three (3) Trading Days before the distribution.

In the event of an allotment of bonus financial instruments other than Shares of the Issuer, the new Warrant Exercise Ratio will be determined as
follows:

If  the  right  to  receive  financial  instruments  is  listed  on  Euronext  Paris,  the  new  Warrant  Exercise  Ratio  will  be  determined  by  multiplying  the
Warrant Exercise Ratio in effect prior to the relevant transaction by the following formula:

1 +

Price of the right to receive financial instruments

Share price ex-right

For the purposes of calculating this formula, the prices of the Shares ex-right and of the rights to receive financial instruments will be determined
on the basis of the weighted average of the prices on Euronext Paris over the first three (3) Trading Days as from the detachment of the financial
instruments.
If the right to receive financial instruments is not listed on Euronext Paris, the new Warrant Exercise Ratio will be determined by multiplying the
Warrant Exercise Ratio in effect prior to the relevant transaction by the following formula:

•

1 +

Value of the financial instruments allocated to each shares

Share price ex-right

For the purposes of calculating this formula, the price of the Shares ex-right and the value of the financial instruments will be determined on the
basis  of  the  weighted  average  of  the  prices  on  Euronext  Paris  over  the  first  three  (3)  Trading  Days  as  from  the  detachment  of  the  financial
instruments.

27

If the financial instruments allocated are not listed on Euronext Paris, their value shall be evaluated in an independent expert's certificate. This
certificate shall be produced by an expert of international repute appointed by the Issuer, whose opinion shall not be subject to appeal.

6.

In the event of merger by acquisition (fusion par absorption) of the Issuer by another company or of merger of the Issuer with one or more other
companies to create a new company (fusion par création d'une nouvelle société), or in the event of a division (scission) or spin-off of the Issuer,
the Warrants may be exercised into shares of the acquiring or new company or the companies resulting from any division or spin-off

The new Warrant Exercise Ratio shall be determined by adjusting the Warrant Exercise Ratio in effect before such event by the exchange ratio of
the Issuer's Shares against the shares of the acquiring or new company or companies resulting from any division or spin-off. These companies shall
be  substituted  to  the  Issuer  in  order  to  apply  the  above  adjustment,  the  purpose  being  to  maintain,  where  applicable,  the  rights  of  the  Warrants
holders in the event of financial or securities transactions, and, generally to ensure that the rights of the Warrants holders are guaranteed under the
legal, regulatory and contractual conditions.

7.

In the event that the Issuer makes an offer to the shareholders to buy-back its own Shares at a price that is higher than the Share price, the new
Warrant Exercise Ratio will be determined by multiplying the Warrant Exercise Ratio in effect by the following formula calculated to the nearest
100th of a Share:

Share value + pc% x (buy-back price - share value)

Share value

For the purposes of calculating this formula:
"Share value" means the volume-weighted average of the prices of the Shares listed on Euronext Paris during the three last trading days
preceding the buyback (or the ability of buyback).
"Pc%" means the percentage of the share capital of the Issuer that has been bought back.
"Buy-back price" means the effective price of the Shares bought-back (which is by definition higher than the Share value).

8.

In  the  event  of  an  amortisation  in  share  capital  of  the  Issuer,  the  new  Warrant  Exercise  Ratio  will  be  determined  by  multiplying  the  Warrant
Exercise Ratio in effect prior to the relevant transaction by the following formula:

1

1 -

Amount of amortisation per share

Value of the share before amortisation

For the purposes of calculating this formula, the value of the Share before the amortisation will be determined on the basis of the volume-weighted
average of the prices of the Share on Euronext Paris over the last three (3) Trading Days immediately prior to the date of the amortisation.

9.

In the event of the modification by the Issuer of the allocation of its profits as a result of the issue of preference shares, the new Warrant Exercise
Ratio will be determined by multiplying the Warrant Exercise Ratio in effect prior to the preference share issue date by the following formula:

1

1 -

Reduction of the profit right per share

Value of the share before modification

For the purposes of calculating this formula, the Share price before the modification of the allocation of profits will be determined on the basis of
the volume-weighted average of the prices of the Share on Euronext Paris over the last three (3) Trading Days immediately prior to the date of the
modification.

7.2 Any Warrants holder exercising its rights may subscribe to a number of Shares, which is calculated by multiplying the Warrant Exercise Ratio
in effect at such time by the number of the Warrants exercised. If the Shares are listed and if the number of Shares calculated in this manner is
not a whole number, a Warrant holder shall receive:

•

either the nearest whole number of Shares immediately less than its entitlement and will receive a payment equal to the value of such
additional fraction of a Share calculated on the basis of the closing Share price listed on Euronext Paris on the Warrant Exercise Date;

28

•

or  the  nearest  whole  number  of  shares  immediately  more  than  its  entitlement  and  will  provide  a  payment  equal  to  the  value  of  such
additional fraction of a Share calculated on the basis of the closing Share price listed on Euronext Paris on the Warrant Exercise Date.

Notwithstanding the above, the Issuer shall not be permitted, without the prior authorisation of the Warrants holder(s), to change its legal form or
corporate purpose.

29

FORM OF WARRANT EXERCISE NOTICE

Schedule 7

VIA EMAIL

Erytech Pharma SA
Attention to: Gil Beyen, Eric Soyer and Brian Schwab
E-mail addresses: gil.beyen@erytech.com, eric.soyer@erytech.com and brian.schwab@erytech.com
Phone number: +33 04 78 74 44 38

Copy to:

CM-CIC Banque Transatlantique
Attention to: Antoine Debourdon, Mireille Lucas and Thibault De Coussemaker
E-mail addresses:
antoine.debourbon@banquetransatlantique.com
mireille.lucas@banquetransatlantique.com
thibault.decoussemaker@banquetransatlantique.com

Please  find  below  the  Warrant  Exercise  Notice  pursuant  to  the  agreement  for  the  issuance  of  and  subscription  to  warrants  giving  access  to  notes
convertible into new and/or existing shares of the Issuer with share subscription warrants attached dated June 24, 2020 (the "Agreement").

All terms written with a capital initial letter shall have the definition ascribed to them in the Agreement.

1

2

3

4

Number of Warrants exercised

Number of Shares to which the Warrants exercised give acces

Warrant Exercise Price

Global subscription price of the Shares: (3)x(1)

[-] Warrants

[-] Shares

EUR [-]

EUR [-]

The global subscription price of the Shares shall be wired on the Issuer's bank account opened with
Société Générale, whose details are as follows:

IBAN: FR76 3000 3022 8100 0203 5389 678
BIC: SOGEFRPP

It is reminded that pursuant to the Agreement, the present notification shall be deemed received and confirmed by the Issuer twenty-four (24) hours after
sending.

Sincerely,

[Name of the Warrant holder]

30

INVESTOR CALL NOTICE FOR THE ISSUANCE OF A TRANCHE OF NOTES

Schedule 8

VIA EMAIL

To:

Erytech Pharma SA
Attention to: Gil Beyen, Eric Soyer and Brian Schwab
E-mail addresses: gil.beyen@erytech.com, eric.soyer@erytech.com and brian.schwab@erytech.com
Phone number: +33 04 78 74 44 38

Dear Sir,

We refer to the agreement for the issuance of and subscription to warrants giving access to notes convertible into new and/or existing shares of the Issuer
with share subscription warrants attached dated June 24, 2020 (the "Agreement").

All terms written with a capital initial letter shall have the definition ascribed to them in the Agreement.

We hereby exercise our Investor Call, for the issuance of a Tranche of Notes upon exercise of Note Warrants, amounting to a principal amount of [three
million/one  million  five  hundred  thousand  Euros  (EUR  3,000,000/1,500,000)].  Please  send  a  Request  in  this  respect,  in  accordance  with  the  terms  of
Clause 3.2 of the Agreement.

On [-], in [-].

Sincerely,

European High Growth Opportunities Securitization Fund,
Represented by European High Growth Opportunities Manco SA

31

Schedule 9

REQUEST FOR THE ISSUANCE OF A TRANCHE OF NOTES
THROUGH THE EXERCISE OF NOTE WARRANTS

VIA EMAIL

To:

European High Growth Opportunities Securitization Fund
Address: c/o European High Growth Opportunities Manco SA, 18, rue Robert Stümper, 2557
Luxembourg
Attention to: Pierre Vannineuse
E-mail address: p.vannineuse@abo.co

Copy to: Hugo Pingray and Amaury Mamou-Mani
E-mail addresses: h.pingray@abo.co and a.mamou-mani@abo.co

Dear Sirs,

We refer to the agreement for the issuance of and subscription to warrants giving access to notes convertible into new and/or existing shares of the Issuer
with share subscription warrants attached dated June 24, 2020 (the "Agreement").

All terms written with a capital initial letter shall have the definition ascribed to them in the Agreement.

The  conditions  set  out  in  Clause  3.4  of  the  Agreement  being  satisfied  (or  waived  by  the  Investor),  we  hereby  submit  a  Request,  in  accordance  with
Clause 3.1 of the Agreement, for the issuance of a Tranche of Notes amounting to a principal amount of three million Euros (EUR 3,000,000) through
the exercise of sixty (60) Note Warrants.

We also inform you that the Fair Market Value of the Warrants (as computed by the Issuer per standard Black & Scholes valuation model as of the date of
this Request) is equal to EUR [·].

On [-], in [-].

Sincerely,

Erytech Pharma SA
Mr. Gil Beyen
in his capacity as Chief Executive Officer (Directeur Général)

32

Exhibit 12.1

CERTIFICATION BY THE PRINCIPAL EXECUTIVE OFFICER PURSUANT TO SECURITIES EXCHANGE ACT RULES 13a-
14(a) and 15d - 14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Gil Beyen, certify that:

1.    I have reviewed this annual report on Form 20-F of ERYTECH Pharma S.A. (the “Company”);

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the
financial condition, results of operations and cash flows of the Company as of, and for, the periods presented in this report;

4.       The  Company’s  other  certifying  officer(s)  and  I  are  responsible  for  establishing  and  maintaining  disclosure  controls  and  procedures  (as  defined  in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for
the Company and have:

(a)     Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision,
to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being prepared;

(b)     Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external
purposes in accordance with generally accepted accounting principles;

(c)          Evaluated  the  effectiveness  of  the  Company’s  disclosure  controls  and  procedures  and  presented  in  this  report  our  conclusions  about  the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)     Disclosed in this report any change in the Company’s internal control over financial reporting that occurred during the period covered by the
annual report that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting; and

5.    The Company’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the
Company’s auditors and the audit committee of the Company’s board of directors (or persons performing the equivalent functions):

(a)          All  significant  deficiencies  and  material  weaknesses  in  the  design  or  operation  of  internal  control  over  financial  reporting  which  are
reasonably likely to adversely affect the Company’s ability to record, process, summarize and report financial information; and

(b)     Any fraud, whether or not material, that involves management or other employees who have a significant role in the Company’s internal
control over financial reporting.

Date: March 8, 2021

/s/ Gil Beyen 

Name: Gil Beyen

Title:

Chief Executive Officer
(Principal Executive Officer)

1

Exhibit 12.2

CERTIFICATION BY THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECURITIES EXCHANGE ACT RULES 13a - 14(a)
AND 15(d)-14(a) as ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Eric Soyer, certify that:

1.    I have reviewed this annual report on Form 20-F of ERYTECH Pharma S.A. (the “Company”);

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the
financial condition, results of operations and cash flows of the Company as of, and for, the periods presented in this report;

4.       The  Company’s  other  certifying  officer(s)  and  I  are  responsible  for  establishing  and  maintaining  disclosure  controls  and  procedures  (as  defined  in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for
the Company and have:

(a)     Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision,
to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being prepared;

(b)     Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external
purposes in accordance with generally accepted accounting principles;

(c)          Evaluated  the  effectiveness  of  the  Company’s  disclosure  controls  and  procedures  and  presented  in  this  report  our  conclusions  about  the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)     Disclosed in this report any change in the Company’s internal control over financial reporting that occurred during the period covered by the
annual report that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting; and

5.    The Company’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the
Company’s auditors and the audit committee of the Company’s board of directors (or persons performing the equivalent functions):

(a)          All  significant  deficiencies  and  material  weaknesses  in  the  design  or  operation  of  internal  control  over  financial  reporting  which  are
reasonably likely to adversely affect the Company’s ability to record, process, summarize and report financial information; and

(b)     Any fraud, whether or not material, that involves management or other employees who have a significant role in the Company’s internal
control over financial reporting.

Date: March 8, 2021

/s/ Eric Soyer

Name:

Eric Soyer

Title:

Chief Financial Officer, Chief Operating Officer and
Deputy General Manager (Principal Financial
Officer)

1

Exhibit 13.1

CERTIFICATION BY THE PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.S.C
SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to the requirement set forth in Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Section 1350 of
Chapter 63 of Title 18 of the United States Code (18 U.S.C. §1350), Gil Beyen, Chief Executive Officer of ERYTECH Pharma S.A. (the “Company”), and
Eric Soyer, Chief Financial Officer, Chief Operating Officer and Deputy General Manager of the Company, each hereby certifies that, to the best of his
knowledge:

(1) The Company’s Annual Report on Form 20-F for the year ended December 31, 2020, to which this Certification is attached as Exhibit 13.1 (the

“Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: March 8, 2021

/s/ Gil Beyen 
Name: Gil Beyen
Title:

Chief Executive Officer
(Principal Executive Officer)

/s/ Eric Soyer
Name: Eric Soyer
Title:

Chief Financial Officer, Chief Operating Officer and Deputy General
Manager
(Principal Financial Officer)

1

Exhibit 15.1

Consent of independent Registered Public Accounting Firm

The Board of Directors,

We consent to the incorporation by reference in the registration statements nos. 333-239429, 333-232670 and 333-222673 on Form S-8 and no. 333-248953
on Form F-3 of Erytech Pharma S.A. of our report dated March 8, 2021, with respect to the consolidated statements of financial position of Erytech Pharma
S.A. and its subsidiary as of December 31, 2020, 2019 and 2018, and the related consolidated statements of income (loss), comprehensive income (loss),
changes in shareholders’ equity and cash flows for each of the years in the three-year period ended December 31, 2020, and the related notes (collectively,
the “consolidated financial statements”), which report appears in the Annual Report on Form 20-F of Erytech Pharma S.A. for the year ended December
31, 2020.

Our report dated March 8, 2021, refers to the change in Erytech Pharma S.A.’s method of accounting for leases on January 1, 2019, due to the adoption of
IFRS 16 "Leases".

Lyon, March 8, 2021

KPMG Audit

A division of KPMG S.A.

Stéphane Devin

Partner

1