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Xenetic Biosciences, Inc.

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FY2023 Annual Report · Xenetic Biosciences, Inc.
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

Form 10-K

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.
For the fiscal year ended December 31, 2023

TRANSITION REPORTS PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.
For the transition period from to

Commission File Number: 001-37937

XENETIC BIOSCIENCES, INC.
(Exact name of registrant as specified in its charter)

Nevada
(State or other jurisdiction of
incorporation or organization)

45-2952962
(IRS Employer
Identification No.)

945 Concord Street
Framingham, Massachusetts 01701
(Address of principal executive offices and zip code)

781-778-7720
(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

 Common Stock, $0.001 par value per share
 Purchase Warrants

Trading Symbol(s)
XBIO
XBIOW

Name of each exchange on which registered
The Nasdaq Capital Market
The Nasdaq Capital Market

Securities registered pursuant to Section 12(g) of the Act:
None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act: Yes ☐ No ☒

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act: Yes ☐ 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: 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): Yes ☒ No ☐

Indicate  by  check  mark  whether  the  registrant  is  a  large  accelerated  filer,  an  accelerated  filer,  a  non-accelerated  filer,  a  smaller  reporting  company  or  an  emerging  growth
company. See the definitions of “large accelerated filer,” “accelerated filer” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer
Non-accelerated filer

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☒

Accelerated filer
Smaller reporting company
Emerging growth company

☐
☒
☐

If an emerging growth company, 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 by the registered public accounting firm that prepared or issued its audit report. ☐

If  securities  are  registered  pursuant  to  Section  12(b)  of  the Act,  indicate  by  check  mark  whether  the  financial  statements  of  the  registrant  included  in  the  filing  reflect  the
correction of an error to previously issued financial statements. ☐

Indicate  by  check  mark  whether  any  of  those  error  corrections  are  restatements  that  required  a  recovery  analysis  of  incentive-  based  compensation  received  by  any  of  the
registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the registrant is a shell company (as defined in Exchange Act Rule 12b-2): Yes  ☐    No  ☒

The aggregate market value of the voting and non-voting common stock held by non-affiliates of the registrant as of June 30, 2023, the last business day of the registrant’s most
recently completely second fiscal quarter, based upon the closing price of the registrant’s common stock on the Nasdaq Capital Market on that date of $3.28, was approximately
$5,026,928. For purposes of this computation, all officers, directors, and 10% beneficial owners of the registrant are deemed to be affiliates. Such determination should not be
deemed to be an admission that such officers, directors or 10% beneficial owners are, in fact, affiliates of the registrant.

As of March 15, 2024, the number of outstanding shares of the registrant’s common stock was 1,540,684.

DOCUMENTS INCORPORATED BY REFERENCE

Information  required  in  response  to  Part  III  of  Form  10-K  (Items  10,  11,  12,  13  and  14)  is  hereby  incorporated  by  reference  to  portions  of  the  registrant's  definitive  proxy
statement for its 2024 Annual Meeting of Stockholders, information statement or an amendment to this Annual Report on Form 10-K. The registrant intends to file a definitive
proxy statement, information statement or an amendment to this Annual Report on Form 10-K with the Securities and Exchange Commission no later than 120 days after the
end of the registrant's fiscal year ended December 31, 2023.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
XENETIC BIOSCIENCES, INC.
2023 ANNUAL REPORT ON FORM 10-K

TABLE CONTENTS

PART I

Item 1

  Business

Item 1A

  Risk Factors

Item 1B

  Unresolved Staff Comments

Item 1C

  Cybersecurity

Item 2

Properties

Item 3

  Legal Proceedings

Item 4

  Mine Safety Disclosures

PART II

Item 5

  Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Item 6

[Reserved]

Item 7

  Management’s Discussion and Analysis of Financial Condition and Results of Operations

Item 7A

  Quantitative and Qualitative Disclosures About Market Risk

Item 8

Financial Statements and Supplementary Data

Item 9

  Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

Item 9A

  Controls and Procedures

Item 9B

  Other Information

Item 9C

  Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

PART III

Item 10

  Directors, Executive Officers and Corporate Governance

Item 11

  Executive Compensation

Item 12

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Item 13

  Certain Relationships and Related Transactions, and Director Independence

Item 14

Principal Accounting Fees and Services

PART IV

Item 15

  Exhibits and Financial Statement Schedules

Item 16

Form 10-K Summary

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Annual  Report  on  Form  10-K  (“Annual  Report”)  contains  forward-looking  statements  within  the  meaning  of  Section  21E  of  the  Securities  Exchange Act  of  1934,  as
amended (the “Exchange Act”), and Section 27A of the Securities Act of 1933, as amended. All statements contained in this Annual Report other than statements of historical
fact, including statements regarding our future results of operations and financial position, our business strategy and plans, future revenues, projected costs, prospects and our
objectives for future operations, are forward-looking statements. These forward-looking statements include, but are not limited to, statements concerning: anticipated effects of
geopolitical events, including the conflicts in the Ukraine and the Middle East and associated sanctions imposed by the United States (“U.S.”) and other countries in response;
our  plans  to  develop  our  proposed  drug  candidates;  our  expectations  regarding  the  nature,  timing  and  extent  of  clinical  trials  and  proposed  clinical  trials;  our  expectations
regarding the timing for proposed submissions of regulatory filings, including but not limited to, any Investigational New Drug (“IND”) filing or any New Drug Application
(“NDA”); the nature, timing and extent of collaboration arrangements; the expected results pursuant to collaboration arrangements, including the receipts of future payments
that  may  arise  pursuant  to  collaboration  arrangements;  the  outcome  of  our  plans  to  obtain  regulatory  approval  of  our  drug  candidates;  the  outcome  of  our  plans  for  the
commercialization  of  our  drug  candidates;  our  plans  to  address  certain  markets,  engage  third  party  manufacturers,  and  evaluate  additional  drug  candidates  for  subsequent
commercial  development  along  with  the  likelihood  and  extent  of  competition  to  our  drug  candidates;  our  plans  to  advance  innovative  immune-oncology  technologies
addressing hard to treat oncology indications; expectations regarding our Deoxyribonuclease (“DNase”) platform, such as regarding the DNase platform being in development
for  the  treatment  of  solid  tumors  and  being  aimed  at  improving  outcomes  of  existing  treatments,  including  immunotherapies,  by  targeting  neutrophil  extracellular  traps
(“NETs”) and our expectations to prioritize our efforts and resources on this newly licensed technology; our expectations regarding our PolyXen® platform; and all statements
under the heading “Opportunity to Address Multiple Oncology Indications”.

In  some  cases,  these  statements  may  be  identified  by  terminology  such  as  “may,”  “will,”  “would,”  “could,”  “should,”  “expect,”  “plan,”  “anticipate,”  “believe,”  “estimate,”
“seek,” “approximately,” “intend,” “predict,” “potential,” “projects,” “upcoming”, “opportunity”, “target” or “continue,” or the negative of such terms and other comparable
terminology. Although  we  believe  that  the  expectations  reflected  in  the  forward-looking  statements  contained  herein  are  reasonable,  we  cannot  guarantee  future  results,  the
levels of activity, performance or achievements. These statements involve known and unknown risks and uncertainties that may cause our or our industry's results, levels of
activity, performance or achievements to be materially different from those expressed or implied by forward-looking statements.

Some factors that could cause actual results to differ materially include without limitation:

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·

uncertainty of the expected financial performance of the Company;
failure to realize the anticipated potential of the DNase or PolyXen technologies;
our ability to implement our business strategy;
our failure to maintain compliance with the continued listing requirements of the Nasdaq Stock Market;
our need to raise additional working capital in the future for the purpose of further developing our pipeline and to continue as a going concern;
our ability to finance our business;
our ability to successfully execute, manage and integrate key acquisitions and mergers;
product development and commercialization risks, including our ability to successfully develop the DNase technology;
the impact of adverse safety outcomes and clinical trial results for our therapies;
our ability to secure and maintain a manufacturer for our technologies;
the impact of new therapies and new uses of existing therapies on the competitive environment;

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our ability to successfully commercialize our current and future drug candidates;
our ability to achieve milestone and other payments associated with our current and future co-development collaborations and strategic arrangements;
our reliance on consultants, advisors, vendors and business partners to conduct work on our behalf;
the impact of new technologies on our drug candidates and our competition;
changes in laws or regulations of governmental agencies;
interruptions or cancellation of existing contracts;
impact of competitive products and pricing;
product demand and market acceptance and risks;
the presence of competitors with greater financial resources;
continued availability of supplies or materials used in manufacturing at the current prices;
the ability of management to execute plans and motivate personnel in the execution of those plans;
our ability to attract and retain key personnel;
adverse publicity related to our products or the Company itself;
adverse claims relating to our intellectual property;
the adoption of new, or changes in, accounting principles;
the costs inherent with complying with statutes and regulations applicable to public reporting companies, such as the Sarbanes-Oxley Act of 2002;
other new lines of business that the Company may enter in the future;
general economic and business conditions, as well as inflationary trends and financial market instability or disruptions to the banking system due to bank failures;
the impact of natural disasters or public health emergencies, such as the COVID-19 global pandemic, and geopolitical events, such as the Russian invasion of
Ukraine and conflict in the Middle East, and related sanctions and other economic disruptions or concerns, on our financial condition and results of operations;
and
other factors set forth in the Risk Factors section of our Annual Report on Form 10-K and in subsequent filings with the Securities and Exchange Commission
(“SEC”).

These factors are not necessarily all of the important factors that could cause actual results to differ materially from those expressed in the forward-looking statements in this
Annual  Report.  Other  unknown  or  unpredictable  factors  also  could  have  material  adverse  effects  on  our  future  results,  including,  but  not  limited  to,  those  discussed  in  the
section titled “Risk Factors.” The forward-looking statements in this Annual Report are made only as of the date of this Annual Report, and we do not undertake any obligation
to publicly update any forward-looking statements to reflect subsequent events or circumstances. We intend that all forward-looking statements be subject to the safe-harbor
provisions of the Private Securities Litigation Reform Act of 1995.

As used in this Annual Report, unless otherwise indicated, all references herein to “Xenetic,” the “Company,” “we” or “us” refer to Xenetic Biosciences, Inc. and its wholly-
owned subsidiaries.

Our brand and product names, including but not limited to, XDNASE™, XCART™, OncoHist™, PolyXen®, ErepoXen™ and ImuXen™ contained in this Annual Report are
trademarks, registered trademarks or service marks of Xenetic Biosciences, Inc. and/or its subsidiaries in the United States of America (“USA” or “U.S.”) and certain other
countries. All other company and product names may be trademarks of the respective companies with which they are associated.

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Summary Risk Factors

Our business is subject to numerous risks. In addition to the summary below, you should carefully review the “Risk Factors” section of this Annual Report on Form 10-K. We
may be subject to additional risks and uncertainties not presently known to us or that we currently deem immaterial. These risks should be read in conjunction with the other
information in this Annual Report on Form 10-K. Some of the principal risks relating to our business include:

· We have never been profitable and may never achieve or sustain profitability. If we are unable to generate sufficient revenue from our operations to pay expenses
or we are unable to obtain additional financing on commercially reasonable terms, our business, financial condition and results of operations may be materially
and adversely affected.

· We will require substantial additional funding to achieve our goals. Failure to obtain this necessary capital when needed on acceptable terms, or at all, may force

us to delay, limit or terminate our product development efforts, other operations or commercialization efforts.

·

Raising additional capital may cause dilution to our stockholders, restrict our operations or require us to relinquish rights to our technologies or drug candidates.

· We may not continue to meet the continued listing requirements of the Nasdaq Stock Market (“Nasdaq”), which could result in a delisting of our common shares.

·

Our business is substantially dependent on the success of the DNase oncology platform.

· We operate in an extremely competitive environment and there can be no assurances that competing technologies would not harm our business development.

· We are an early-stage company in the business of developing pharmaceutical products including drug candidates and technologies. Given the uncertainty of such

development, our business operations may never fully materialize and create value for investors.

·

If conflicts arise between us and our collaborators or strategic partners, these parties may act in their self-interest, which may limit our ability to implement our
strategies.

· We expect to rely on third parties to conduct, supervise and monitor our clinical studies, and if these third parties perform in an unsatisfactory manner, it may harm

our business.

·

Our  collaborators  or  strategic  partners  may  decide  to  adopt  alternative  technologies  or  may  be  unable  to  develop  commercially  viable  products  with  our
technology, which would negatively impact our revenues and our strategy to develop these products.

· We  may  seek  to  establish  additional  collaborations  and,  if  we  are  not  able  to  establish  them  on  commercially  reasonable  terms,  we  may  have  to  alter  our

development and commercialization plans.

·

If  we  enter  into  one  or  more  collaborations,  we  may  be  required  to  relinquish  important  rights  to  and  control  over  the  development  of  our  drug  candidates  or
otherwise be subject to unfavorable terms.

· We may find it difficult to enroll patients in our clinical studies, which could delay or prevent clinical studies of our pharmaceutical products.

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· We may encounter substantial delays in commencement, enrollment or completion of our clinical trials, or we may fail to demonstrate safety and efficacy to the
satisfaction of applicable regulatory authorities, which could prevent us from commercializing our current and future drug candidates on a timely basis, if at all.

·

·

·

·

·

If we complete the necessary preclinical and clinical studies, we cannot predict when or if we will obtain regulatory approval to commercialize a drug candidate,
or the approval may be for a more narrow indication than we expect.

If we obtain regulatory approval for a drug candidate, our drug candidate will remain subject to regulatory scrutiny.

The commercial success of any current or future pharmaceutical products will depend upon the degree of market acceptance by physicians, patients, third-party
payors and others in the medical community.

The  commercial  potential  of  a  pharmaceutical  candidate  in  development  is  difficult  to  predict.  If  the  market  size  for  a  new  drug  candidate  or  technology  is
significantly smaller than we anticipate, it could significantly and negatively impact our revenue, results of operations and financial condition.

Failure  to  obtain  or  maintain  adequate  coverage  and  reimbursement  for  our  drug  candidates,  if  approved,  could  limit  our  ability  to  market  those  products  and
decrease our ability to generate revenue.

· We may use our financial and human resources to pursue a particular research program or drug candidate and fail to capitalize on programs or drug candidates that

may be more profitable or for which there is a greater likelihood of success.

· We may not be successful in our efforts to identify or discover additional pharmaceutical products.

·

The market opportunities for our drug candidates may be limited to those patients who are ineligible for or have failed prior treatments and may be small.

· We have no manufacturing, sales, marketing or distribution capabilities, and we may have to invest a significant amount of resources to develop these capabilities.

·

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Our reliance on third parties requires us to share our trade secrets, which increases the possibility that a competitor will discover them or that our trade secrets will
be misappropriated or disclosed.

If we fail to adequately protect or enforce our intellectual property rights, we may be unable to operate effectively.

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

· We may not be able to protect our intellectual property rights throughout the world.

·

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If we infringe on the intellectual property rights of others, our business and profitability may be adversely affected.

If  we  fail  to  comply  with  our  obligations  in  the  agreements  under  which  we  license  intellectual  property  rights  from  third-parties  or  otherwise  experience
disruptions to our business relationships with our licensors, we could lose license rights that are important to our business.

· We  may  be  subject  to  claims  that  our  employees,  consultants  or  independent  contractors  have  wrongfully  used  or  disclosed  confidential  information  of  third

parties or that our employees have wrongfully used or disclosed alleged trade secrets of their former employers.

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· We may be subject to claims challenging the inventorship or ownership of our patents and other intellectual property.

·

·

Our inability to protect our confidential information and trade secrets would harm our business and competitive position.

Our future success depends on our ability to retain principal members of our executive team, consultants and advisors and to attract, retain and motivate qualified
personnel.

· We will need to expand our organization, and we may experience difficulties in managing this growth, which could disrupt our operations.

· We are a party to collaboration agreements and other significant agreements which contain complex commercial terms that could result in disputes, litigation or

indemnification liability that could adversely affect our business, results of operations and financial condition.

·

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The market price of our securities may be highly volatile, and you may not be able to sell our securities.

Actions of activist shareholders could cause us to incur substantial costs, divert management's attention and resources, and have an adverse effect on our business.

Our preferred stockholders have rights, preferences and privileges that are not held by, and are preferential to, the rights of our common stockholders, which could
result in the interests of our preferred stockholders differing from those of our common stockholders.

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ITEM 1 – BUSINESS

Overview

PART I

We  are  a  biopharmaceutical  company  focused  on  advancing  innovative  immune-oncology  technologies  addressing  hard  to  treat  cancers.  Our  proprietary  DNase  platform  is
designed  to  improve  outcomes  of  existing  treatments,  including  immunotherapies,  by  targeting  NETs,  which  have  been  implicated  in  cancer  progression  and  resistance  to
cancer treatments.

The DNase platform is designed to target NETs, which are weblike structures composed of extracellular chromatin coated with histones and other proteins. NETs are expelled
by  activated  neutrophils,  in  response  to  microbial  or  pro-inflammatory  challenges.  However,  excessive  production  or  reduced  clearance  of  NETs  can  lead  to  aggravated
inflammatory, hypercoagulability and autoimmune pathologies, as well as creation of pro-tumorigenic niches in the case of cancer growth and metastasis.

We  are  focused  on  advancing  the  development  of  our  DNase  platform  toward  a  first-in-human,  multicenter,  dose  escalation  and  dose-expansion  study  of  IV  rhDNase  I  in
subjects with locally advanced or metastatic solid tumors. Our systemic DNase program is initially targeting multi-billion-dollar indications including pancreatic cancer (which
includes pancreatic ductal adenocarcinoma (“PDAC”)), colorectal carcinoma (“CRC”) and other gastrointestinal cancers. These are all cancer indications with significant unmet
need, and with opportunities for substantial improvement of the currently available therapeutic options. PDAC has a low rate of early diagnosis, a high mortality rate and a poor
five-year  survival  prognosis.  Symptoms  are  usually  non-specific  and  as  a  result,  PDAC  is  often  not  diagnosed  until  it  reaches  an  advanced  stage.  Once  the  disease  has
metastasized, or spread to other organs, it becomes especially hard to treat. Each year, about 185,000 individuals globally are diagnosed with this condition; and in 2021, the
Surveillance,  Epidemiology  and  End  Results  program,  or  SEER,  of  the  National  Cancer  Institute  estimated  that  in  the  United  States  there  would  be  approximately  60,000
individuals diagnosed with pancreatic cancer. The overall five-year survival rate among pancreatic cancer patients is 7-8%, which constitutes the highest mortality rate among
solid tumor malignancies; among those diagnosed with metastatic disease, the overall five-year survival rate is only 3%. Recent developments that have improved the survival
in many cancer types have not been effective for pancreatic cancer patients, highlighting the urgent need for the development of newer, more effective therapeutic options. For
those  few  patients  that  present  with  earlier  stage  PDAC,  surgical  resection  followed  by  chemotherapy  is  possible,  but  for  the  majority  of  PDAC  patients  which  present  at
diagnosis with advanced disease, chemotherapy is the only option, and has only very limited benefit. Second-line patients that were diagnosed already with metastatic disease
have  even  fewer  therapeutic  options.  The  only  approved  regimen  for  second-line  patients  is  Onivyde®  in  combination  with  5FU  and  LV.  For  these  Stage  IV  at  diagnosis
patients reaching second-line therapy, median overall survival is only 4.7 months (Macarulla et al, Pancreas 2020 ).

CRC is the second most common cause of cancer death in the United States after lung cancer. CRC is the third most commonly diagnosed cancer in males and the second in
females, globally, according to the World Health Organization GLOBOCAN database. In the United States, CRC is the second most common cause of cancer death after lung
cancer. According to data from the NCI’s Surveillance, Epidemiology, and End Results (“SEER) Program, it is estimated that in 2023 approximately 153,000 individuals in the
U.S. will be diagnosed with colon cancer, and an estimated 53,000 will die of the disease. CRC is in decline in older patients (>65 years) but that is offset by a steady increase
in CRC diagnoses and deaths in individuals younger than 55 years of age. Despite continued overall declines, CRC is rapidly shifting to diagnosis at a younger age, at a more
advanced stage, and in the left colon/rectum. If CRC is diagnosed at a localized stage, the 5-year survival rate is 91%. However, if the cancer has spread to surrounding tissues
or organs and/or the regional lymph nodes, the 5-year relative survival rate is 72%. There are numerous treatment options for earlier stage CRC patients, but as they progress to
advanced and metastatic disease (“mCRC”), those options become limited. Approximately 22% of CRC cases have metastasis at presentation, and 19% will develop metastasis
after primary tumor removal. Unfortunately, if CRC has spread to distant parts of the body, the 5-year relative survival rate is 13%.

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All major guidelines recommend patients with mCRC undergo testing of DNA for high DNA microsatellite instability (MSI-H), a mutation found in approximately 10% of all
CRC, and up to 5% of mCRC. CRC patients that are MSI-H/MMRd (or “mismatch repair deficient”) are candidates for immunotherapy using immune checkpoint inhibitors
(“ICIs”);  at  present,  there  are  three  ICIs  approved  for  MSI-H/MMRd  CRC  –  Keytruda,  Opdivo  (anti-PD-1  antibodies)  and Yervoy  (anti-CTLA-4  antibody).  While  the  ICI
response rates in this small subset of CRC are encouraging at around 50%, a significant number of patients are resistant, or become refractory to ICI therapy. However, the vast
majority of mCRC patients (>90%) are microsatellite stable (“MSS”) and mismatch repair proficient (“MMRp”), where ICIs have not been shown to provide benefit. The lack
of  ICI  response  in  this  subset  is  due  to  poor  immunogenicity  and  immunosuppression. Again,  this  highlights  the  urgent  need  for  the  development  of  newer,  more  effective
therapeutic options.

A  substantial  amount  of  scientific  literature  has  implicated  NETs  in  the  context  of  cancer  pathogenesis  and  resistance  to  cancer  therapies  (including  chemo,  radio,  and
immunotherapies  such  as  checkpoint  inhibitors  and  cell  therapies).  In  published  reports,  elevated  levels  of  NETs  have  been  a  biomarker  associated  with  poor  prognosis  in
patients  with  a  variety  of  cancers  and  in  particular,  in  gastrointestinal  cancers.  In  addition,  resistance  to  existing  therapeutic  agents  can  involve  the  release  of
immunosuppressive signaling factors from NETs, or physical barriers created by NETs, which can impede the infiltration, activity, and survival of cytotoxic T cells in the tumor
microenvironment. Published pre-clinical models have demonstrated the effectiveness of systemically administered DNase, alone or in combination with other agents, for the
elimination  of  NETs  and  prevention  of  tumor  growth  and  metastasis. We  are  currently  focused  on  advancing  our  systemic  DNase  program  into  the  clinic  as  an  adjunctive
therapy for pancreatic carcinoma and locally advanced or metastatic solid tumors, including CRC.

Adoptive transfer of Chimeric Antigen Receptor (“CAR”) T cells has emerged as one of the most promising advances in cancer immunotherapy. To successfully treat solid
tumors, CAR T cells must be able to infiltrate, persist, and maintain anti-tumor function in a hostile tumor microenvironment that is itself adept at immunosuppression and
conducive  to  tumor  cell  survival.  Recent  approaches  to  CAR  T  design  include  “armored”  CAR-T  cells,  so  named  because  they  can  express  additional  factors  to  resist
immunosuppression  or  degrade  physical  components  of  the  tumor’s  extracellular  matrix,  including  NETs.  We  intend  to  conduct  pre-clinical  research  with  the  goal  of
demonstrating that armoring CAR T cells to secrete DNase can support depth and durability of response against solid tumor indications. Engineered CAR T cells, designed to
recognize cancer-associated antigens, are capable of sustained and selective killing of tumor cells, with substantial reduction of tumor burden. CAR T therapies have exhibited
remarkable clinical success against hematological malignancies but thus far have failed to demonstrate success in the context of solid tumors. Published evidence suggests that
in  addition  to  immunosuppressive  factors,  mechanical  barriers  formed  by  NETs  can  impede T-cell  penetration  and  occlude T-cell  contact  with  tumor  cells. The  conduct  of
several CAR T in vivo models has been a primary focus of our Scripps collaboration.

Our collaboration with Belgian Volition SARL Limited (“Volition”) is an early exploratory program to evaluate the potential combination of Volition’s Nu.Q® technology and
Xenetic’s DNase-Armored CAR T platform to develop proprietary adoptive cell therapies potentially targeting multiple types of solid cancers for which current CAR T cell
therapies have shown limited or no effect. Under the terms of the collaboration agreement, Volition will fund a research program and the two parties will share proceeds from
commercialization or licensing of any products arising from the collaboration. Epigenetically modified nucleosomes are present on tumor cell surfaces and within the tumor
microenvironment  of  multiple  types  of  solid  cancers,  and  thus  these  nucleosomes  may  represent  generalizable  tumor  antigens  that  are  not  limited  to  a  single  cancer  type.
Volition’s Nu.Q® technology can specifically recognize and target epigenetically modified nucleosomes, while our DNase-Armored CAR T platform is designed to enhance the
function of CAR T cells within solid tumor microenvironments.

Additionally, we have partnered with biotechnology and pharmaceutical companies to develop our proprietary drug delivery platform, PolyXen, and receive royalty payments
under an exclusive license arrangement in the field of blood coagulation disorders. PolyXen is an enabling platform technology for protein and peptide drug delivery. It uses the
biological polymer polysialic acid (“PSA”) to prolong the drug's half-life and potentially improve the stability of therapeutic peptides and proteins. Both the site of attachment
and the length of the PSA chain can influence the properties of the therapeutic by changing the apparent hydrodynamic radius of the molecule, which in turn, can enhance a
number of the biological characteristics of the therapeutic. It can also be used for small molecule drugs.

2

 
 
 
 
 
 
 
 
 
 
 
We incorporate our patented and proprietary technologies into drug candidates currently under development with biotechnology and pharmaceutical industry collaborators to
create what we believe will be the next-generation biologic drugs with improved pharmacological properties over existing therapeutics. Our drug candidates have resulted from
our research activities or that of our collaborators and are in the development stage. As a result, we continue to commit a significant amount of our resources to our research and
development activities and anticipate continuing to do so for the near future. To date, none of our drug candidates have received regulatory marketing authorization or approval
in  the  U.S.  by  the  Food  and  Drug Administration  (“FDA”)  nor  in  any  other  countries  or  territories  by  any  applicable  agencies. As  noted  above,  we  are  receiving  ongoing
royalties pursuant to a license of our PolyXen technology to an industry partner.

Although we hold a broad patent portfolio, the focus of our internal efforts in 2023 was on the licensing and advancement of our DNase platform.

We were incorporated under the laws of the State of Nevada in August 2011. We, directly or indirectly, through our wholly-owned subsidiaries, Hesperix S.A. (“Hesperix”) and
Xenetic  Biosciences  (U.K.)  Limited  (“Xenetic  U.K.”),  and  the  wholly-owned  subsidiaries  of  Xenetic  UK,  Lipoxen Technologies  Limited  (“Lipoxen”),  Xenetic  Bioscience,
Incorporated and SymbioTec, GmbH (“SymbioTec”), own various U.S. federal trademark registrations and applications, along with unregistered trademarks and service marks,
including but not limited to XCART, OncoHist, PolyXen, ErepoXen and ImuXen.

Our Strategy

Our primary focus is aimed at advancing the systemic DNase program into the clinic as an adjunctive therapy for pancreatic cancer and other locally advanced or metastatic
solid  tumors,  including  CRC.  Our  goal  is  to  provide  solutions  in  the  treatment  of  solid  tumors  by  improving  response  and  overcoming  resistance  to  checkpoint  inhibitors,
chemotherapy, and other standard of care treatments. We also intend to pursue industry collaborations and potential licenses to develop DNase for other uses and indications.

We intend to pursue orphan drug designations and accelerated approval pathways for relevant oncology indications as appropriate in both the U.S. and Europe. If our orphan
oncology drug candidates are granted orphan drug designation, then we may benefit from certain key advantages of orphan status including certain market exclusivities.

We  intend  to  advance  development  of  our  DNase  platform  primarily  through  the  use  of  contract  manufacturing,  contract  research  organizations  (“CROs”)  and  academic
institutions in order to efficiently manage our resources. Continuous pipeline growth and advancement of out-licensed drug candidates is dependent, in part, on our ability to
raise sufficient capital and to advance our existing co-development collaborations and strategic arrangements as well as enter into new such arrangements.

Business Developments

Volition Collaboration

On August 2, 2022, we announced a research and development collaboration with Volition to develop NETs-targeted adoptive cell therapies for the treatment of cancer. The
collaboration is an early exploratory program to evaluate the potential combination of Volition’s Nu.Q® technology Test and the Company’s DNase-Armored CAR T platform
to develop proprietary adoptive cell therapies potentially targeting multiple types of solid cancers. Under the terms of the collaboration agreement, Volition will fund a research
program and the two parties will share proceeds from commercialization or licensing of any products arising from the collaboration. On July 10, 2023, we entered into the first
Collaborator Statement of Work as part of this collaboration with Volition.

3

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Scripps Research Institute (“Scripps Research”)

On March 17, 2023, the Company and Scripps Research, entered into a Research Funding and Option Agreement (the “Agreement”), pursuant to which we agreed to provide
Scripps Research an aggregate of up to $938,000 to fund research relating to advancing the pre-clinical development of our DNase oncology platform technology. The research
funding is payable by us to Scripps Research on a monthly basis in accordance with a negotiated budget, which provides for an initial payment of approximately $78,000 on the
date of the Agreement and subsequent monthly payments of approximately $78,000 over a 12-month period. Under the Agreement, we have the option to acquire a worldwide
exclusive  license  to  Scripps  Research’s  rights  in  the Technology  or  Patent  Rights  (as  defined  in  the Agreement),  as  well  as  a  non-exclusive,  royalty-free,  non-transferrable
license to make and use TSRI Technology (as defined in the Agreement) solely for our internal research purposes during the performance of the research program contemplated
by the Agreement.

Unless earlier terminated, the term of the Agreement continues from the date of the Agreement for fifteen (15) months. The Agreement may be terminated by us with 30 days
advance written notice to Scripps Research beginning six (6) months after the Effective Date (as defined in the Agreement) or by Scripps Research if we fail to make timely
payments due under the Agreement, subject to 30 days’ written notice to cure such nonpayment. The Agreement may further be terminated by either party in the event of the
other party’s uncured failure to perform any obligations under the Agreement or the bankruptcy of the other party.

University of Virginia (“UVA”)

On December 21, 2023, we entered into a Research Funding and Material Transfer Agreement, as amended, with UVA (the “UVA Agreement”) to advance the development of
our systemic DNase program. Under the terms of the UVA Agreement, in addition to advancing our existing intellectual property, we have an option to acquire an exclusive
license to any new intellectual property arising from the DNase research program. Allan Tsung, MD, a member of the Company’s Scientific Advisory Board and Chair of the
Department of Surgery at the UVA School of Medicine, will oversee the research conducted under the UVA Agreement. As a surgical oncologist and scientist, Dr. Tsung is
internationally recognized for leading substantial research on the role of NETs in tumor growth, metastasis, and resistance to existing cancer therapies.

Our Technology and Drug Candidates

The Technologies

We incorporate our patented and proprietary technologies into a number of drug candidates which are currently under development internally or with our biotechnology and
pharmaceutical collaborators, with the goal of creating what we believe will be the next generation of biologic drugs and therapeutics. While we primarily focus on researching
and developing oncology drugs, we also have ownership and other economic interests in drugs being developed by our collaborators to treat other conditions.

During the year ended December 31, 2023, the focus of our internal development efforts was on the advancement of our DNase oncology platform. We have not been actively
pursuing development efforts for XCART or PolyXen or any of our other technologies.

DNase

The DNase platform is designed to target NETs, which are weblike structures composed of extracellular chromatin coated with histones and other proteins.
NETs are expelled by activated neutrophils, in response to microbial or pro-inflammatory challenges. However, excessive production or reduced clearance of
NETs  can  lead  to  aggravated  inflammatory  and  autoimmune  pathologies,  as  well  as  creation  of  pro-tumorigenic  niches  in  the  case  of  cancer  growth  and
metastasis.

Program Highlights:

·

Exclusive license and sublicense agreements with CLS Therapeutics Ltd. (“CLS”) to develop its interventional DNase platform, which is aimed at
improving outcomes of existing treatments, including immunotherapies;
· Multiple value-driving milestones expected over the next 12 -24 months;
·

Systemic DNase program initially targeting multi-billion-dollar indications including pancreatic carcinoma and other locally advanced or metastatic
solid tumors; and
DNase-armored CAR T program in early pre-clinical development.

·

4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
XCART

The Chimeric Antigen Receptor (“CAR”) T cell (“XCART”) technology platform was designed by its originators to utilize an established screening technique
to identify peptide ligands that bind specifically to the unique BCR on the surface of an individual patient’s malignant tumor cells. The peptide is then inserted
into the antigen-binding domain of a CAR T cell, and a subsequent transduction/transfection process is used to engineer the patient’s T cells into a CAR T
format  which  redirects  the  patient’s  T  cells  to  attack  the  tumor.  Essentially,  the  XCART  screening  platform  is  the  inverse  of  a  typical  CAR  T  screening
protocol  wherein  libraries  of  highly  specific  antibody  domains  are  screened  against  a  given  target.  In  the  case  of  XCART  screening,  the  target  is  itself  an
antibody domain, and hence highly specific by its nature. The XCART technology creates the possibility of personalized treatment of lymphomas utilizing a
CAR with an antigen-binding domain that should only recognize, and only be recognized by, the unique BCR of a particular patient’s B-cell lymphoma. An
expected result for XCART is limited off-tumor toxicities, such as B-cell aplasia. We have suspended further development of XCART at this time, as we focus
our efforts and resources on our DNase technology platform.

PolyXen

An enabling biological platform technology designed to extend the circulation time of drug molecules in the human body by chemically attaching PSA, to the
drug  molecule  by  a  process  termed  polysialylation,  thereby  creating  potentially  superior  next  generation  therapeutic  candidates.  PSA,  a  biopolymer,
comprising a chain of sialic acid molecules, is a natural constituent of the human body, although we obtain our PSA from a bacterial source. 

Research, Outside Services and Collaborations

Through  partner  efforts,  we  are  developing  our  pipeline  of  next-generation  bio-therapeutics  and  novel  oncology  drugs  based  on  our  DNase  and  PolyXen  proprietary
technologies.  In  order  to  do  this  while  efficiently  managing  our  overhead,  we  rely  on  the  services  of  contract  manufacturers,  CROs  and  our  strategic  collaborations.  We
currently do not have in-house research facilities to pursue these initiatives. Accordingly, continuous pipeline growth and advancement of our technologies and drug candidates
is dependent on several important collaborations and strategic arrangements, including our arrangements with:

·

·

·

·

Catalent Pharma Solutions LLC (“Catalent”), a global leader in enabling biopharma, cell, gene and consumer health partners to optimize development, launch, and
supply of better patient treatments across multiple modalities;

PJSC  Pharmsynthez  (“Pharmsynthez”),  including  its  wholly-owned  subsidiary  SynBio  LLC  (“SynBio”),  a  beneficial  owner  of  approximately  3.4%  of  our
common stock;

Scripps Research, one of the world’s largest, private non-profit research organizations; and

The University of Virginia, a non-profit, educational, research and healthcare institution.

Accordingly, in addition to pursuing our development of the DNase technology, we also have significant interests in drug candidates being developed by our collaborators to
treat other conditions. We may collect some combination of milestone payments and royalties pursuant to these collaborations to the extent that these drugs are successfully
developed  and  marketed.  However,  other  than  royalty  payments  under  a  sublicense  with  Takeda  Pharmaceutical  Co.  Ltd.  (together  with  its  wholly-owned  subsidiaries,
“Takeda”) and potential royalty payments under our collaboration agreement with Pharmsynthez, we do not anticipate any milestone or royalty payments in the near term, if at
all. For further detail, please read the section titled “Significant Collaborations and Strategic Arrangements” below.

5

 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Our Drug Candidate Pipeline

Our product pipeline contains drug candidates under development internally and with our biotechnology and pharmaceutical collaborators. The following table summarizes key
information regarding our current drug candidates:

ErepoXen

ErepoXen, or polysialylated erythropoietin (“PSA-EPO”), uses our PolyXen platform technology for the treatment of anemia in chronic kidney disease (“CKD”) patients. It is
designed  to  reduce  the  dosing  frequency  by  extending  the  circulating  half-life  of  the  therapeutic  in  the  body.  We  are  not  pursuing  clinical  development  of  ErepoXen  but
continue to entertain out-license opportunities for the drug candidate in our licensed territories.

We have collaboration agreements with Pharmsynthez and Serum Institute to develop and launch ErepoXen in limited markets pursuant to which we will collect royalties if
they are successful in these efforts.

Pharmsynthez  received  regulatory  approval  to  commence  a  Phase  II(b)/III  human  clinical  trial  of  ErepoXen  (also  known  as  Epolong)  in  Russia  with  patient  recruitment
completed in 2020. In December 2020, Pharmsynthez reported positive data from this clinical trial and, in February 2021, reported in a press release that it had started the
registration phase of Epolong by filing a registration dossier to obtain approval in Russia. Pharmsynthez had reported in its press release that it expected that the Russian stage
of registration activities would be completed in 2021 and that it would be able to start production of the product as early as the first quarter of 2022. In the first quarter of 2023,
Pharmsynthez informed us that it had received a response letter indicating certain deficiencies in the dossier and continues to develop a gap mitigation strategy with the intent
of refiling the registration upon correction.

6

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Serum Institute conducted Phase I and Phase II clinical trials of ErepoXen in ninety-five human subjects. These safety trials, which had no significant drug-related adverse
events, provided us with the data to commence a Phase II, repeat dosing, International Conference on Harmonisation of Technical Requirements for Pharmaceuticals for Human
Use compliant clinical trial for ErepoXen in Australia, New Zealand and South Africa for CKD patients not on dialysis. We completed three cohorts of this study and then
terminated the study.

In addition, Serum Institute finished Phase I/II clinical trials in India of ErepoXen for in-center-dialysis patients. Serum Institute may seek to leverage Pharmsynthez’s trial data
and potential Russian marketing authorization to request a waiver for a Phase III clinical trial in India, subject to local regulatory authority approval.

Pipeline Expansion Opportunities

Operating under licenses from us within their home markets, our collaborators can potentially generate preclinical and clinical data related to our technologies across a wide
spectrum of therapeutic areas. Under these agreements, we retain all rights for major markets and co-own the clinical data. We therefore have the opportunity to utilize the data
in our decision-making process regarding development and commercialization in major markets.

Significant Collaborations and Strategic Arrangements

Takeda

In  October  2017,  we  granted  to Takeda  the  right  to  grant  a  non-exclusive  sublicense  to  certain  patents  related  to  our  PolyXen  technology  that  were  previously  exclusively
licensed to Takeda in connection with products related to the treatment of blood and bleeding disorders. Royalty payments of approximately $2.5 million and $1.7 million were
recorded as revenue by us during the years ended December 31, 2023 and 2022, respectively, and are based on single digit royalties on net sales of certain covered products.

CLS

On April  26,  2022,  we  entered  into  an  Exclusive  Sublicense Agreement  (the  “Sublicense Agreement”)  with  CLS  pursuant  to  which  we  received  an  exclusive  license  under
certain patent rights and know-how owned or controlled by CLS, to develop and commercialize certain pharmaceutical products and methods incorporating DNase enzyme for
use  in  the  treatment  of  cancer  (the  “Sublicensed  Products”).  Under  the  terms  of  the  Sublicense Agreement,  we  will  have  sole  responsibility  to,  and  shall  use  commercially
reasonable  efforts  to,  among  other  things,  research,  develop  and  obtain  marketing  approval  for  the  Sublicensed  Products  in  the  U.S.  and  certain  European  markets,  and  to
commercialize such Sublicensed Products in the relevant market once marketing approval is obtained.

Concurrent with the Sublicense Agreement, we entered into an Exclusive License Agreement (the “License Agreement”) with CLS, pursuant to which we received an exclusive
license under certain patent rights and know-how owned or controlled by CLS to develop and commercialize certain pharmaceutical products and methods incorporating DNase
in conjunction with CAR T therapies (the “Licensed Products”). Under the terms of the License Agreement, we will have sole responsibility to, and shall use commercially
reasonable  efforts  to,  among  other  things,  research,  develop  and  obtain  marketing  approval  for  the  Licensed  Products  in  the  U.S.  and  certain  European  markets,  and  to
commercialize such Licensed Products in the relevant market once marketing approval is obtained.

Volition

On August 2, 2022, we announced a research and development collaboration with Volition to develop NETs-targeted adoptive cell therapies for the treatment of cancer and on
July  10,  2023  we  entered  into  the  first  Collaborator  Statement  of Work  with Volition  as  part  of  this  collaboration.  For  more  information  regarding  such  collaboration  with
Volition, refer to the section titled “Business Developments” above.

7

 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
Catalent

On June 30, 2022, we entered into a Statement of Work (the “SOW”) with Catalent to outline the general scope of work, timeline, and pricing pursuant to which Catalent will
provide certain services to us to perform current Good Manufacturing Practices (“cGMP”) manufacturing of our recombinant protein, Human DNase I. The parties agreed to
enter into a Master Services Agreement (“MSA”) that will contain terms and conditions to govern the project contemplated by the SOW and that will supersede the addendum
to the SOW containing Catalent’s standard terms and conditions. In addition, in the event of any conflict between the project-specific terms and conditions set forth in the SOW
and the MSA, the MSA terms and conditions shall govern. The estimated total cost of the project contemplated by the SOW is expected to be up to approximately $5 million
(exclusive of certain fees and potential alternatives) for the manufacturing services over the course of the term of the project with each phase of the project invoiced separately
in connection with the commencement of such phase.

Scripps Research

On March 17, 2023, the Company and Scripps Research entered into the Agreement, pursuant to which we have agreed to provide Scripps Research an aggregate of up to
$938,000 to fund research relating to advancing the pre-clinical development of our DNase oncology platform technology. For more information regarding the Agreement, refer
to the section titled “Business Developments” above.

Other Agreements

We have also entered into various research, development, license and supply agreements with Serum Institute of India (“Serum Institute”), Pharmsynthez and SynBio, a wholly
owned  subsidiary  of  Pharmsynthez.  We  and  our  collaborative  partners  continued  to  engage  in  research  and  development  activities  with  no  resultant  commercial  products
through  December  31,  2023.  No  amounts  were  recognized  as  revenue  related  to  the  Serum  Institute,  Pharmsynthez  or  SynBio  agreements  during  each  of  the  years  ended
December 31, 2023 and 2022.

Our Intellectual Property

We strive to protect and enhance the proprietary technology, inventions and improvements that are commercially important to our business, including seeking, maintaining and
defending  patent  rights,  whether  developed  internally  or  licensed  from  our  collaborators  or  other  third  parties.  Our  policy  is  to  seek  to  protect  our  proprietary  position  by,
among other methods, filing patent applications in the U.S. and in jurisdictions outside of the U.S. covering our proprietary technology, inventions, improvements and product
candidates that are important to the development and implementation of our business. We also rely on trade secrets and know-how relating to our proprietary technology and
product candidates, continuing innovation and in-licensing opportunities to develop, strengthen and maintain our proprietary position in the field of oncology. We also plan to
rely on data exclusivity, market exclusivity and patent term and supplemental patent certificate extensions when available. Our commercial success will depend in part on our
ability to obtain and maintain patent and other proprietary protection for our technology, inventions and improvements; to preserve the confidentiality of our trade secrets; to
obtain and maintain licenses to use intellectual property owned by third parties; to defend and enforce our proprietary rights, including any patents that we may own in the
future; and to operate without infringing on the valid and enforceable patents and other proprietary rights of third parties.

Our drug candidates are in various stages of development, each protected by patent and pending patent applications in the U.S. with the U.S. Patent and Trademark Office
(“USPTO”)  and  in  certain  other  developed  countries.  Our  first  issued  patents  began  to  expire  in  2021  with  the  majority  of  the  existing  issued  patents  for  our  PolyXen
technology expiring between 2025 and 2030. Our XCART and XDNASE patent families include patent applications that were recently filed, with those most recently filed
having an expiration date of 2042.

8

 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
Our  patent  strategy  is  to  file  patent  applications  on  innovations  and  improvements  in  those  jurisdictions  that  comprise  the  major  pharmaceutical  markets  in  the  world  or
locations where a pharmaceutical may be manufactured. These jurisdictions generally include for our key patent portfolios, but are not limited to, the U.S., U.K., Australia,
Japan, Canada, South Korea, China, India, Russia and certain other countries in the European Union (“E.U.”), though we do not necessarily file a patent application in each of
these jurisdictions for every patent family.

As of February 15, 2024, we directly or indirectly own (e.g. through a license with CLS), through our wholly-owned subsidiaries, Hesperix and Xenetic U.K., and Xenetic
U.K.’s wholly-owned subsidiaries, Lipoxen, XTI and SymbioTec, more than 170 U.S. and international patents and pending patent applications that cover various aspects of
our  technologies.  This  number  includes  patents  and  patent  applications  that  we  have  acquired  or  filed  covering  various  aspects  of  our  XDNASE  and  XCART  platform
technology, including all rights throughout the world in and to patents and patent applications related to “Articles And Methods Directed To Personalized Therapy Of Cancer,”
and  our  PolyXen  platform  technology  covering  polysialylation  and  advanced  polymer  conjugate  technologies,  respectively,  as  well  as  our  other  product  candidates.  More
specifically,  our  patents  and  patent  applications  cover  cancer  treatments,  method  of  use,  polymer  architecture,  drug  conjugates,  formulations,  methods  of  manufacturing
polymers and polymer conjugates along with methods of administering polymer conjugates.

We have received patent protection for certain therapeutics that use our PolyXen technology linking the specific therapeutic to a PSA. These include, but are not limited to,
PSA-EPO,  PSA-insulin  and  PSA-insulin  like  protein,  a  next  generation  Factor  VIII  protein  product  candidate  SHP656  (PSA-rFVIII),  PSA-DNase  I  and  PSA-granulocyte
colony stimulating factor (PSA-GCSF). Further patents cover methods to prepare proteins that are linked to a PSA as well as covering PSA linkages. These method patents
include those that link a PSA to a protein in a high pH solution as well as patents that use a process for producing an aldehyde derivative of a sialic acid through the opening
and oxidation of a sialic acid unit. For instance, we have patent protection for a PSA linkage that can be at the N-terminus.

We  have  received  patent  protection  for  the  production  of  PSA  and  the  removal  of  endotoxin  during  the  purification  process. The  removal  of  endotoxin  occurs  through  the
addition of a high pH solution to the PSA and a process to separate a polydisperse ionically charged polysaccharide, such as PSA, into fractions of different average molecular
weight. This is accomplished through the use of a column and elution buffers with different and constant ionic strength and pH, resulting in a fractionated polysaccharide that
has a molecular weight polydispersity of 1.1 or lower.

We have also received patent protection for our XDNASE technology, which covers the use of DNase for the treatment of cancer and amelioration of the side effects associated
with  a  cancer  treatment.  The  DNase  can  be  administered  alone  or  in  combination  with  a  cancer  therapeutic.  This  portfolio  and  that  of  the  XCART  portfolio  also  provide
coverage for the use of certain types of CAR-T cells, with or without the addition of a DNase to treat a cancer. The portfolio further covers the use of CAR-T cells with or
without DNase that are administered with an immune checkpoint inhibitor or modulator to treat a cancer.

Issued patents can provide protection for varying periods of time, depending upon the date of filing of the patent application, the date of patent issuance and the legal term of
patents in the countries in which they are obtained. In general, patents issued for applications filed in the U.S. can provide exclusionary rights for twenty years from the earliest
effective filing date. In addition, in certain instances, the term of an issued U.S. patent that covers or claims an FDA approved product can be extended to recapture a portion of
the term effectively lost as a result of the FDA regulatory review period, which is called patent term extension in the United States and supplemental patent certificate in Europe
and several other countries. The restoration period cannot be longer than five years, and the total patent term, including the restoration period, must not exceed fourteen years
following FDA approval. The term of patents outside of the U.S. varies in accordance with the laws of the foreign jurisdiction but is typically also twenty years from the earliest
effective  filing  date.  However,  the  actual  protection  afforded  by  a  patent  varies  on  a  product-by-product  basis,  from  country-to-country,  and  depends  upon  many  factors,
including the type of patent, the scope of its coverage, the availability of regulatory-related extensions, the availability of legal remedies in a particular country and the validity
and enforceability of the patent.

9

 
 
 
 
 
 
 
 
 
 
 
 
In certain situations, where we work with drugs covered by one or more patents, our ability to develop and commercialize our technologies may be affected by limitations of
our access to these proprietary drugs. Even if we believe we are free to work with a proprietary drug, we cannot guarantee that we will not be accused of, or be determined to
be, infringing on a third party’s rights and be prohibited from working with the drug or found liable for damages. Any such restriction on access or liability for damages would
have a material adverse effect on our business, results of operations and financial condition.

The patent positions of pharmaceutical and biotechnology companies, such as ours, are uncertain and involve complex legal and factual issues. There can be no assurance that
patents  that  have  been  issued  will  be  held  valid  and  enforceable  in  a  court  of  law.  Even  for  patents  that  are  held  valid  and  enforceable,  the  legal  process  associated  with
obtaining such a judgment is time consuming and costly. Additionally, issued patents can be subject to opposition or other proceedings that can result in the revocation of the
patent  or  maintenance  of  the  patent  in  amended  form  (and  potentially  in  a  form  that  renders  the  patent  without  commercially  relevant  and/or  broad  coverage).  Further,  our
competitors may be able to circumvent and otherwise design around our patents. Even if a patent is issued and enforceable, because development and commercialization of
pharmaceutical products can be subject to substantial delays, patents may expire early and provide only a short period of protection, if any, following the commercialization of
products  encompassed  by  our  patent(s).  We  may  have  to  participate  in  interference  proceedings  declared  by  the  USPTO,  which  could  result  in  a  loss  of  the  patent  and/or
substantial cost to us. Further, we understand that if any of our pending patent applications do not issue, or are deemed invalid following issuance, we may lose valuable IP
protection.

U.S. and foreign patent rights and other proprietary rights exist that are owned by third parties and relate to pharmaceutical compositions and reagents, medical devices and
equipment and methods for preparation, packaging and delivery of pharmaceutical compositions. We cannot predict with any certainty which, if any, of these rights will be
considered relevant to our technology by authorities in the various jurisdictions where such rights exist, nor can we predict with certainty which, if any, of these rights will or
may be asserted against us by third parties. We could incur substantial costs in defending ourselves and our partners against any such claims. Furthermore, parties making such
claims may be able to obtain injunctive or other equitable relief, which could effectively block our ability to develop or commercialize some or all of our products in the U.S.
and in other countries and could result in the award of substantial damages. In the event of a claim of infringement, we or our partners may be required to obtain one or more
licenses from third parties. There can be no assurance that we can obtain a license to any technology that we determine we require on reasonable terms, if at all, or that we could
develop or otherwise obtain alternative technology. The failure to obtain licenses, if required, may have a material adverse effect on our business, results of operations and
financial condition. Further, we may not be able to obtain IP licenses related to the development of our drug candidates on a commercially reasonable basis, if at all.

It is our policy to require our employees and consultants, outside scientific collaborators, sponsored researchers and other advisors who receive confidential information from
us  to  execute  confidentiality  agreements  upon  the  commencement  of  employment  or  consulting  relationships  with  us.  These  agreements  provide  that  all  confidential
information developed or made known to the individual during the course of the individual’s relationship with us is to be kept confidential and not disclosed to third parties
except in specific circumstances. The agreements provide that all inventions conceived by an employee shall be our property. There can be no assurance, however, that these
agreements will provide meaningful protection or adequate remedies for our trade secrets in the event of unauthorized use or disclosure of such information.

Manufacturing and Supply

We do not have the capability to manufacture our own materials necessary to support our drug candidate development programs nor do we intend to acquire such capability as
part of our present business strategy. We currently have agreements in place with Catalent and Serum Institute whereby Catalent and Serum Institute would produce clinical
materials for use in the development of drug candidates involving our DNase and PolyXen technologies, respectively, including candidates developed by our partners. We do
not have any agreements in place to manufacture clinical materials for use in the development of our XCART technology and would seek a third party manufacturer for our
clinical supply needs, if necessary.

10

 
 
  
 
 
 
 
 
 
 
 
 
 
Government Regulation

General

Government  authorities  in  the  U.S.  at  the  federal,  state  and  local  level,  and  other  countries,  extensively  regulate,  among  other  things,  the  research,  development,  testing,
manufacture, quality control, approval, labeling, packaging, storage, record-keeping, promotion, advertising, distribution, marketing and export and import of products such as
those we are developing. Generally, a new drug must be approved by the FDA through the NDA process and a new biologic must be licensed by the FDA through the biologics
license application (“BLA”) process before it may be legally marketed in the U.S.

U.S. Regulation

Drug Development Process

In  the  U.S.,  the  FDA  regulates  drugs  under  the  Federal  Food,  Drug,  and  Cosmetic Act  (“FDCA”),  and  in  the  case  of  biologics,  also  under  the  Public  Health  Service Act
(“PHSA”), and their implementing 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  the  FDA’s
refusal to approve pending applications, withdrawal of an approval, license revocation, a clinical hold, warning letters or untitled letters, product recalls, product seizures, total
or partial suspension of production or distribution, injunctions, fines, refusals of government contracts, restitution, disgorgement or civil or criminal penalties. Any agency or
judicial enforcement action could have a material adverse effect on us.

The process required by the FDA before a drug or biologic may be marketed in the U.S. generally involves the following:

·

·

·

·

·

·

completion of preclinical laboratory tests, animal studies and formulation studies in accordance with Good Laboratory Practices (“GLP”) regulations and other
applicable 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  Good  Clinical  Practice  (“GCP”)  regulations  to  establish  the  safety  and
efficacy of the proposed drug for its intended use;

submission to the FDA of an NDA or BLA;

satisfactory  completion  of  an  FDA  inspection  of  the  manufacturing  facility  or  facilities  at  which  the  drug  is  produced  to  assess  compliance  with  cGMPs
requirements to assure that the facilities, methods and controls are adequate to preserve the drug’s identity, strength, quality and purity; and

FDA review and approval of the NDA or BLA.

The drug or biologic manufacturer may also be subject to post-approval regulatory requirements. Once a pharmaceutical candidate is identified for development, it enters the
preclinical testing stage. Preclinical tests include laboratory evaluations of product chemistry, toxicity and formulation, as well as animal studies. An IND sponsor must submit
the  results  of  the  preclinical  tests,  together  with  manufacturing  information  and  analytical  data,  to  the  FDA  as  part  of  the  IND.  The  sponsor  will  also  include  a  protocol
detailing, among other things, the objectives of the first phase of the clinical trial, the parameters to be used in monitoring safety and the effectiveness criteria to be evaluated, if
the first phase lends itself to an efficacy evaluation. Some preclinical testing may continue even after the IND is submitted. The IND automatically becomes effective thirty
days after receipt by the FDA, unless the FDA, within the thirty-day time period, places the clinical trial on a clinical hold. In such a case, the IND sponsor and the FDA must
resolve any outstanding concerns before the clinical trial can begin. Clinical holds may also be imposed by the FDA at any time before or during clinical trials due to safety
concerns  about  ongoing  or  proposed  clinical  trials  or  noncompliance  with  specific  FDA  requirements,  and  the  trials  may  not  begin  or  continue  until  the  FDA  notifies  the
sponsor that the hold has been lifted.

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All clinical trials must be conducted under the supervision of one or more qualified investigators in accordance with GCP regulations. They must be conducted under protocols
detailing the objectives of the trial, dosing procedures, subject selection and exclusion criteria and the safety and effectiveness criteria to be evaluated. Each protocol must be
submitted to the FDA as part of the IND, and timely safety reports must be submitted to the FDA if any serious and unexpected adverse events occur. An institutional review
board  (“IRB”)  at  each  institution  participating  in  the  clinical  trial  (or  in  some  cases  an  independent  IRB)  must  review  and  approve  each  protocol  before  a  clinical  trial
commences at that institution. As part of its review, the IRB must also approve the information regarding the trial and the consent form that must be provided to each trial
subject or his or her legal representative, monitor the study until completion and otherwise comply with IRB regulations.

Human clinical trials are typically conducted in three sequential phases that may overlap or be combined:

·

·

·

Phase I: The drug candidate is initially introduced into healthy human subjects and tested for safety, dosage tolerance, absorption, metabolism, distribution and
excretion. In the case of some products for severe or life-threatening diseases, such as cancer, especially when the product may be too inherently toxic to ethically
administer to healthy volunteers, the initial human testing is often conducted in patients.

Phase  II:  This  phase  involves  clinical  trials  in  a  limited  patient  population  to  identify  possible  adverse  effects  and  safety  risks,  to  preliminarily  evaluate  the
efficacy of the product for specific targeted diseases and to determine dosage tolerance and appropriate dosage.

Phase  III:  Clinical  trials  are  undertaken  to  further  evaluate  dosage,  clinical  efficacy  and  safety  in  an  expanded  patient  population  at  geographically  dispersed
clinical study sites. These clinical trials are intended to establish the overall risk-benefit ratio of the drug candidate and provide, if appropriate, an adequate basis
for product labeling.

Post-approval trials, sometimes referred to as Phase IV studies, 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 certain instances, the FDA may mandate the performance of Phase IV clinical trials as a condition of approval of
an NDA or BLA.

The FDA or the sponsor may suspend a clinical trial at any time on various grounds, including a finding that the research subjects 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. In addition, some clinical trials are overseen by an independent group of qualified experts organized
by the sponsor, known as a data safety monitoring board or committee. Depending on its charter, this group may determine whether a trial may move forward at designated
check points based on access to certain data from the trial.

Concurrent  with  clinical  trials,  sponsors  must  also  develop  additional  information  about  the  chemistry  and  physical  characteristics  of  the  drug  and  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 drug candidate and, among other things, the manufacturer must develop methods for testing the identity, strength, quality and purity of the final drug. In addition,
appropriate packaging must be selected and tested and stability studies must be conducted to demonstrate that the drug candidate does not undergo unacceptable deterioration
over its shelf life.

While the IND is active and before approval, progress reports summarizing the results of the clinical trials and nonclinical studies performed since the last progress report must
be submitted at least annually to the FDA by the Sponsor, and written IND safety reports must be submitted to the FDA for serious and unexpected suspected adverse events,
findings from other studies suggesting a significant risk to humans exposed to the same or similar drugs, findings from animal or in-vitro testing suggesting a significant risk to
humans and any clinically important increased incidence of a serious suspected adverse reaction compared to that listed in the protocol or investigator brochure.

There are also requirements governing the reporting of ongoing clinical trials and completed trial results to public registries. Sponsors of certain clinical trials of FDA-regulated
products are required to register and disclose specified clinical trial information, which is publicly available at www.clinicaltrials.gov. Information related to the product, patient
population, phase of investigation, trial 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.

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U.S. Market Approval Process

The  results  of  product  development,  preclinical  and  other  non-clinical  studies  and  clinical  trials,  along  with  descriptions  of  the  manufacturing  process,  analytical  tests
conducted  on  the  chemistry  of  the  drug,  proposed  labeling  and  other  relevant  information  will  be  submitted  to  the  FDA  as  part  of  an  NDA  or  BLA  requesting  approval  to
market the product. The submission of an NDA or BLA is subject to the payment of user fees; a waiver of such fees may be obtained under certain limited circumstances. The
FDA reviews all NDAs and BLAs submitted to ensure they are sufficiently complete for substantive review before it accepts them for filing. The FDA may request additional
information rather than accept an NDA or BLA for filing. In this event, the NDA or BLA must be resubmitted with the additional information. The resubmitted application also
is subject to review before the FDA accepts it for filing.

Once  the  submission  is  accepted  for  filing,  the  FDA  begins  an  in-depth  substantive  review.  The  FDA  may  refer  the  NDA  or  BLA  to  an  advisory  committee  for  review,
evaluation and recommendation as to whether the application should be approved and under what conditions. The FDA is not bound by the recommendation of an advisory
committee, but it generally follows such recommendations. The approval process is lengthy and often difficult, and the FDA may refuse to approve an NDA or BLA if the
applicable regulatory criteria are not satisfied or may require additional clinical or other data and information. Even if such data and information are submitted, the FDA may
ultimately decide that the NDA or BLA does not satisfy the criteria for approval. The FDA reviews an NDA to determine, among other things, whether a product is safe and
effective for its intended use and whether its manufacturing is cGMP-compliant to assure and preserve the product’s identity, strength, quality and purity. The FDA reviews a
BLA to determine, among other things whether the product is safe, pure and potent and the facility in which it is manufactured, processed, packed or held meets standards
designed to assure the product’s continued safety, purity and potency. Before approving an NDA or BLA, the FDA will inspect the facility or facilities where the product is
manufactured.

After the FDA evaluates an NDA or BLA, it will issue an approval letter or a Complete Response Letter. An approval letter authorizes commercial marketing of the drug with
prescribing  information  for  specific  indications. A  Complete  Response  Letter  indicates  that  the  review  cycle  of  the  application  is  complete  and  the  application  will  not  be
approved in its present form. A Complete Response Letter usually describes the specific deficiencies in the NDA or BLA identified by the FDA and may require additional
clinical data, such as an additional pivotal Phase III trial or other significant and time-consuming requirements related to clinical trials, nonclinical studies or manufacturing. If
a Complete Response Letter is issued, the sponsor must resubmit the NDA or BLA, addressing all of the deficiencies identified in the letter, or withdraw the application. Even if
such data and information are submitted, the FDA may decide that the NDA or BLA does not satisfy the criteria for approval.

If a product receives regulatory approval, the approval may be significantly limited to specific diseases and dosages or the indications for use may otherwise be limited, which
could restrict the commercial value of the product. In addition, the FDA may require a sponsor to conduct Phase IV testing, which involves clinical trials designed to further
assess a drug’s safety and effectiveness after NDA or BLA approval, and may require testing and surveillance programs to monitor the safety of approved products which have
been commercialized. The FDA may also place other conditions on approval including the requirement for a risk evaluation and mitigation strategy (“REMS”) to assure the
safe use of the drug. If the FDA concludes a REMS is needed, the sponsor of the NDA or BLA must submit a proposed REMS. The FDA will not approve the NDA or BLA
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.  Marketing  approval  may  be  withdrawn  for  noncompliance  with  regulatory  requirements  or  if  problems  occur  following
initial marketing.

Orphan Drug Act

The Orphan Drug Act provides incentives to manufacturers to develop and market drugs or biologics for rare diseases and conditions affecting fewer than 200,000 persons in
the U.S. at the time of application for orphan drug designation or for a patient population greater than 200,000 in the U.S. where there is no reasonable expectation that the cost
of developing the drug or biologic will be recovered from sales in the U.S. The first developer to receive FDA marketing approval for an orphan drug is entitled to a seven-year
exclusive marketing period in the U.S. for that product. However, a drug that the FDA considers to be clinically superior to, or different from, another approved orphan drug,
even though for the same indication, may also obtain approval in the U.S. during the seven-year exclusive marketing period. In addition, holders of exclusivity for orphan drugs
are expected to assure the availability of sufficient quantities of their orphan drugs to meet the needs of patients. Failure to do so could result in the withdrawal of marketing
exclusivity for the drug.

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Pediatric Information

Under the Pediatric Research Equity Act of 2007 (“PREA”), NDAs or BLAs or supplements to NDAs or BLAs must contain data to assess the safety and effectiveness of the
drug for the claimed indication(s) in all relevant pediatric sub-populations and to support dosing and administration for each pediatric sub-population for which the drug is safe
and effective. The FDA may grant deferrals for submission of data or full or partial waivers. Unless otherwise required by regulation, PREA does not apply to any drug for an
indication for which orphan drug designation has been granted. The Best Pharmaceuticals for Children Act (“BPCA”) provides sponsors of NDAs with an additional six-month
period of market exclusivity for all unexpired patent or non-patent exclusivity on all forms of the drug containing the active moiety if the sponsor submits results of pediatric
studies  specifically  requested  by  the  FDA  under  BPCA  within  required  timeframes.  The  Biologics  Price  Competition  and  Innovation  Act  provides  sponsors  of  BLAs  an
additional six-month extension for all unexpired non-patent market exclusivity on all forms of the biologic containing the active moiety pursuant to the BPCA if the conditions
under the BPCA are met.

The Food and Drug Administration Safety and Innovation Act (“FDASIA”), which was signed into law on July 9, 2012, amended the FDCA. FDASIA requires that a sponsor
who is planning to submit a marketing application for a drug or biological product that includes a new active ingredient, new indication, new dosage form, new dosing regimen
or new route of administration submit an initial Pediatric Study Plan (“PSP”) within sixty days of an end-of-Phase II meeting or as may be agreed between the sponsor and
FDA. The initial PSP must include an outline of the pediatric study or studies that the sponsor plans to conduct, including study objectives and design, age groups, relevant
endpoints and statistical approach, or a justification for not including such detailed information, and any request for a deferral of pediatric assessments or a full or partial waiver
of the requirement to provide data from pediatric studies along with supporting information. FDA and the sponsor must reach agreement on the PSP. A sponsor can submit
amendments  to  an  agreed-upon  initial  PSP  at  any  time  if  changes  to  the  pediatric  plan  need  to  be  considered  based  on  data  collected  from  nonclinical  studies,  early  phase
clinical trials, and/or other clinical development programs.

Expedited Development and Review Programs

The FDA has a Fast Track program that is intended to expedite or facilitate the process for reviewing new drugs and biological products that meet certain criteria. Specifically,
new drugs and biological products are eligible for Fast Track designation if they are intended to treat a serious or life-threatening condition and demonstrate the potential to
address unmet medical needs for the condition. Fast Track designation applies to the combination of the product and the specific indication for which it is being studied. The
sponsor of a new drug or biologic may request the FDA to designate the drug or biologic as a Fast Track product at any time during the clinical development of the product. For
a Fast Track designated product, the FDA may consider for review sections of the marketing application on a rolling basis before the complete application is submitted, if the
sponsor  provides  a  schedule  for  the  submission  of  the  sections  of  the  application,  the  FDA  agrees  to  accept  sections  of  the  application  and  determines  that  the  schedule  is
acceptable, and the sponsor pays any required user fees upon submission of the first section of the application.

Any product submitted to the FDA for marketing, including under a Fast Track program, may be eligible for other types of FDA programs intended to expedite development
and review, such as priority review and accelerated approval. Fast Track designation, priority review and accelerated approval do not change the standards for approval but may
expedite  the  development  or  approval  process. Any  product  is  eligible  for  priority  review  if  it  has  the  potential  to  provide  safe  and  effective  therapy  where  no  satisfactory
alternative therapy exists or a significant improvement in the treatment, diagnosis or prevention of a disease compared to marketed products. The FDA will attempt to direct
additional resources to the evaluation of an application for a new drug or biological product designated for priority review in an effort to facilitate the review. Additionally, a
product may be eligible for accelerated approval. Drug or biological products studied for their safety and effectiveness in treating serious or life-threatening illnesses and that
provide meaningful therapeutic benefit over existing treatments may receive accelerated approval, which means that they may be approved on the basis of adequate and well-
controlled clinical trials establishing that the product has an effect on a surrogate endpoint that is reasonably likely to predict a clinical benefit, or on the basis of an effect on a
clinical  endpoint  other  than  survival  or  irreversible  morbidity. As  a  condition  of  approval,  the  FDA  may  require  that  a  sponsor  of  a  drug  or  biological  product  receiving
accelerated approval perform adequate and well-controlled post-marketing clinical trials. In addition, the FDA currently requires as a condition for accelerated approval pre-
approval of promotional materials, which could adversely impact the timing of the commercial launch of the product. If the FDA concludes that a drug shown to be effective
can  be  safely  used  only  if  distribution  or  use  is  restricted,  it  will  require  such  post-marketing  restrictions  as  it  deems  necessary  to  assure  safe  use  of  the  drug,  such  as  (i)
distribution restricted to certain facilities or physicians with special training or experience or (ii) distribution conditioned on the performance of specified medical procedures.

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FDASIA  established  a  new  category  of  drugs  and  biologics  referred  to  as  “breakthrough  therapies”  that  may  be  eligible  to  receive  Breakthrough  Therapy  Designation. A
sponsor may seek FDA designation of a drug or biologic candidate as a “breakthrough therapy” if the product is intended, alone or in combination with one or more other
products, to treat a serious or life-threatening disease or condition and preliminary clinical evidence indicates that the product may demonstrate substantial improvement over
existing therapies on one or more clinically significant endpoints, such as substantial treatment effects observed early in clinical development. The designation includes all of
the Fast Track program features, as well as more intensive FDA interaction and guidance. The Breakthrough Therapy Designation is a distinct status from both accelerated
approval and priority review, which can also be granted to the same drug if relevant criteria are met. If a product is designated as breakthrough therapy, the FDA will expedite
the development and review of such drug. All requests for breakthrough therapy designation will be reviewed within 60 days of receipt, and the FDA will either grant or deny
the request.

The  21st  Century  Cures  Act,  enacted  in  2016,  established  a  new  expedited  approval  program  for  regenerative  medicine  products,  including  cell  and  gene  therapies.  The
Regenerative  Medicine  Advanced  Therapy  (“RMAT”)  program  established  an  expedited  review  program  to  facilitate  development  and  review  of  regenerative  medicine
therapies intended to address an unmet medical need in patients with serious conditions. An investigational drug is eligible for RMAT designation if: (1) It meets the definition
of regenerative medicine therapy (such as a cell therapy or gene therapy); (2) it is intended to treat, modify, reverse, or cure a serious condition; and (3) preliminary clinical
evidence indicates that the regenerative medicine therapy has the potential to address unmet medical needs for such condition. Advantages of the RMAT designation include all
the benefits of the fast track and breakthrough therapy designation programs, including early interactions with FDA.

Post-Approval Requirements

Once an approval is granted, the FDA may withdraw the approval if compliance with regulatory requirements or standards is not maintained or if problems occur after the
product  reaches  the  market.  Later  discovery  of  previously  unknown  problems  with  a  product  may  result  in  restrictions  on  the  product  or  even  complete  withdrawal  of  the
product from the market. After approval, some types of changes to the approved product, such as adding new indications, certain manufacturing changes and additional labeling
claims, are subject to further FDA review and approval. Drug and biologics manufacturers and other entities involved in the manufacture and distribution of approved drugs and
biologics are required to register their establishments with the FDA and certain state agencies and are subject to periodic unannounced inspections by the FDA and certain state
agencies for compliance with cGMP regulations and other laws and regulations.

U.S. Patent Term Restoration and Marketing Exclusivity

The  Biologics  Price  Competition  and  Innovation Act,  or  BPCIA,  amended  the  Public  Health  Service Act  to  authorize  the  FDA  to  approve  similar  versions  of  innovative
biologics, commonly known as biosimilars. A competitor seeking approval of a biosimilar must file an application to establish its molecule as highly similar to an approved
innovator biologic, among other requirements. The BPCIA, however, bars the FDA from approving biosimilar applications based on the Company’s data for twelve years after
an innovator biological product receives initial marketing approval. This twelve-year period of data exclusivity may be extended by six months, for a total of twelve and a half
years, if the FDA requests that the innovator company conduct pediatric clinical investigations of the product.

Depending upon the timing, duration and specifics of the FDA approval of our drug 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 extension cannot extend the remaining term of a patent beyond a total of fourteen years from the product’s approval date. The patent term extension period is generally
one-half the time between the effective date of an IND and the submission date of an NDA or BLA plus the time between the submission date of an NDA or BLA and the
approval of that application up to a maximum of five years extension. 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 USPTO, in consultation with the FDA, reviews and approves the application for any patent term extension
or restoration. In the future, we intend to apply for extension of the patent term for one of our currently owned or licensed patents to add patent life beyond its current expiration
date where reasonably obtainable and depending on the expected length of the clinical trials and other factors involved in the filing of the relevant NDA or BLA.

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Marketing exclusivity provisions under the FDCA can also delay the submission or the approval of certain marketing applications. The FDCA provides a five-year period of
non-patent marketing exclusivity within the U.S. to the first applicant to obtain approval of an NDA for a new chemical entity. A drug is a new chemical entity if the FDA has
not  previously  approved  any  other  new  drug  containing  the  same  active  moiety,  which  is  the  molecule  or  ion  responsible  for  the  action  of  the  drug  substance.  During  the
exclusivity period, the FDA may not accept for review an abbreviated new drug application (ANDA), or a 505(b)(2) NDA submitted by another company for another drug
based on the same active moiety, regardless of whether the drug is intended for the same indication as the original innovator drug or for another indication, where the applicant
does not own or have a legal right of reference to all the data required for approval. However, an application may be submitted after four years if it contains a certification of
patent invalidity or non-infringement to one of the patents listed with the FDA by the innovator NDA holder. The FDCA also provides three years of marketing exclusivity for
an NDA or supplement to an existing NDA if new clinical investigations (other than bioavailability studies) that were conducted or sponsored by the applicant are deemed by
the  FDA  to  be  essential  to  the  approval  of  the  application  (e.g.,  new  indications,  dosages  or  strengths  of  an  existing  drug).  This  three-year  exclusivity  covers  only  the
modification for which the drug received approval on the basis of the new clinical investigations and does not prohibit the FDA from approving ANDAs for drugs containing
the  active  agent  for  the  original  indication  or  condition  of  use.  Five-year  and  three-year  exclusivity  will  not  delay  the  submission  or  approval  of  a  full  NDA.  However,  an
applicant  submitting  a  full  NDA  would  be  required  to  conduct  or  obtain  a  right  of  reference  to  all  of  the  preclinical  studies  and  adequate  and  well-controlled  clinical  trials
necessary to demonstrate safety and effectiveness.

Pediatric  exclusivity  is  another  type  of  regulatory  market  exclusivity  in  the  U.S.  under  the  BPCA.  Pediatric  exclusivity  provides  for  an  additional  six  months  of  marketing
exclusivity if a sponsor conducts clinical trials in children as addressed in the section named “Pediatric Information” above. In addition, orphan drug exclusivity, as described
above, may offer a seven-year period of marketing exclusivity, except in certain circumstances.

Foreign Regulation

In addition to regulations in the U.S., we will be subject to a variety of regulations in other jurisdictions governing, among other things, clinical trials and any commercial sales
and distribution of our drug candidates.

Whether  or  not  we  obtain  FDA  approval  for  our  drug  candidates,  we  must  obtain  the  requisite  approvals  from  regulatory  authorities  in  foreign  countries  prior  to  the
commencement of clinical trials or marketing of the drug candidates in those countries. Certain countries outside of the U.S. have a similar process that requires the submission
of a clinical trial application (“CTA”) much like the IND prior to the commencement of human clinical trials. In the European Union, for example, a CTA must be submitted to
each country’s national health authority and an independent ethics committee, much like the FDA and the IRB, respectively. Once the CTA is approved in accordance with a
country’s requirements, clinical study development may proceed.

The requirements and process governing the conduct of clinical trials, product approval and licensing, pricing and reimbursement vary from country to country. In all cases, the
clinical trials are conducted in accordance with GCP and the applicable regulatory requirements and the ethical principles that have their origin in the Declaration of Helsinki.

To obtain regulatory approval of an investigational drug or biological product under European Union regulatory systems, we must submit a marketing authorization application.
The application used to file the NDA or BLA in the U.S. is similar to that required in the European Union, with the exception of, among other things, country-specific document
requirements.  The  European  Union  also  provides  opportunities  for  market  exclusivity.  For  example,  in  the  European  Union,  upon  receiving  marketing  authorization,  new
chemical entities generally receive eight years of data exclusivity and an additional two years of market exclusivity. If granted, data exclusivity prevents regulatory authorities
in the European Union from referencing the innovator’s data to assess a generic application. During the additional two-year period of market exclusivity, a generic marketing
authorization can be submitted, and the innovator’s data may be referenced, but no generic product can be marketed until the expiration of the market exclusivity. However,
there  is  no  guarantee  that  a  product  will  be  considered  by  the  European  Union’s  regulatory  authorities  to  be  a  new  chemical  entity,  and  products  may  not  qualify  for  data
exclusivity. Products receiving orphan designation in the European Union can receive ten years of market exclusivity, during which time no similar medicinal product for the
same indication may be placed on the market. An orphan product can also obtain an additional two years of market exclusivity in the European Union for pediatric studies. No
extension to any supplementary protection certificate can be granted on the basis of pediatric studies for orphan indications.

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The criteria for designating an “orphan medicinal product” in the European Union are similar in principle to those in the U.S. Under Article 3 of Regulation (EC) 141/2000, a
medicinal  product  may  be  designated  as  orphan  if  (1)  it  is  intended  for  the  diagnosis,  prevention  or  treatment  of  a  life-threatening  or  chronically  debilitating  condition;  (2)
either (a) such condition affects no more than five in 10,000 persons in the European Union when the application is made, or (b) the product, without the benefits derived from
orphan status, would not generate sufficient return in the European Union to justify investment; and (3) there exists no satisfactory method of diagnosis, prevention or treatment
of such condition authorized for marketing in the European Union, or if such a method exists, the product will be of significant benefit to those affected by the condition, as
defined in Regulation (EC) 847/2000. Orphan medicinal products are eligible for financial incentives such as reduction of fees or fee waivers and are, upon grant of a marketing
authorization,  entitled  to  ten  years  of  market  exclusivity  for  the  approved  therapeutic  indication. The  application  for  orphan  drug  designation  must  be  submitted  before  the
application for marketing authorization. The applicant will receive a fee reduction for the marketing authorization application if the orphan drug designation has been granted,
but  not  if  the  designation  is  still  pending  at  the  time  the  marketing  authorization  is  submitted.  Orphan  drug  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 that the product no longer meets the criteria for orphan designation,
for example, if the product is sufficiently profitable not to justify maintenance of market exclusivity. In addition, marketing authorization may be granted to a similar product
for the same indication at any time if:

·

·

·

the second applicant can establish that its product, although similar, is safer, more effective or otherwise clinically superior;

the applicant consents to a second orphan medicinal product application; or

the applicant cannot supply enough orphan medicinal products.

For other countries outside of the European Union, such as countries in Eastern Europe, Latin America or Asia, the requirements governing the conduct of clinical studies,
product licensing or approval, pricing and reimbursement vary from country to country. In all cases, again, the clinical studies are conducted in accordance with GCP and the
applicable regulatory requirements and the ethical principles that have their origin in the Declaration of Helsinki.

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 Regulatory Matters

Manufacturing, sales, promotion and other activities following product approval are also potentially subject to regulation by numerous regulatory authorities in addition to the
FDA,  including,  in  the  U.S.,  the  Centers  for  Medicare  &  Medicaid  Services,  other  divisions  of  the  Department  of  Health  and  Human  Services,  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  U.S.,  sales,  marketing  and  scientific/educational  programs  must  also  comply  with  state  and  federal  fraud  and  abuse  laws,
including state and federal anti-kickback, false claims, data privacy and security and physician payment transparency laws. Pricing and rebate programs must comply with the
federal health care program (e.g. Medicaid) rebate requirements of the U.S. Omnibus Budget Reconciliation Act of 1990 and more recent requirements in the Patient Protection
and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010, collectively the Affordable Care Act, as well as the Inflation Reduction Act
of 2022. If products are made available to authorized users of the Federal Supply Schedule of the General Services Administration, additional laws and requirements apply. 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.

17

 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
The failure to comply with regulatory requirements may subject us 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  a  firm  to  enter  into  supply  contracts,  including  government  contracts.  In  addition,  even  if  a  firm  complies  with  FDA  and  other
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; (ii) additions or modifications to product labeling; (iii) the recall or discontinuation of our products; or (iv) additional record-keeping requirements. If any such
changes were to be imposed, they could adversely affect the operation of our business.

Reimbursement

In both domestic and foreign markets, sales and reimbursement of any approved products will depend, in part, on the extent to which the costs of such products will be covered
by third-party payors, such as government health programs, commercial insurance and managed healthcare organizations. These third-party payors are increasingly challenging
the prices charged for medical products and services and imposing controls to manage costs. 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. Governments have shown significant interest in implementing cost-containment programs, including price
controls, restrictions on reimbursement and requirements for substitution of generic products. For example, in the U.S. there have been several recent 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 drugs. Additionally, in May 2018,
the  Trump Administration  laid  out  a  “Blueprint”  to  lower  drug  prices  and  reduce  out-of-pocket  costs  of  drugs  that  contains  additional  proposals  to  increase  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. While the Biden Administration has not continued this effort, it has the authority to institute other actions. In December of
2020, the Trump Administration issued interim final rules focused on attempting to lower drug prices, including permitting the importation of certain drugs from Canada, most-
favored nation pricing for certain drug categories under Medicare Part B and modifications to the Medicare Part D drug rebate program by modifying the U.S. federal Anti-
Kickback Statute. The Part B most-favored nation rule was blocked from taking effect on January 4, 2021, by a federal judge stating that the rule was rushed and the public was
not provided time to give comment as required by the Administrative Procedures Act. Then, on December 29, 2021, CMS issued a final rule that formally rescinded the most-
favored nation rule. There is also pending litigation to stay the changes to the Medicare Part D drug rebate program and the Anti-Kickback Statute. On January 30, 2021, the
District Court for the District of Columbia granted the parties’ stipulated request to delay the effective date of the Part D rebate rule to January 1, 2023. On August 7, 2022,
Congress passed the Inflation Reduction Act of 2022 which delayed the implementation of the changes to the Medicare Part D drug rebate program and the U.S. Federal Anti-
Kickback Statute until January 2032.

Additionally, the Inflation Reduction Act of 2022 may impact existing Medicare programs that cover prescription drugs. In addition to other relevant provisions, the Inflation
Reduction Act of 2022 allow the Medicare program to directly negotiate the price of certain high-expenditure prescription drugs covered under Medicare Parts B and D, starting
in the year 2028 and 2026, respectively, by setting certain "maximum fair prices." Moreover, the Inflation Reduction Act of 2022 requires manufacturers to pay rebates to the
federal government if prices of certain drugs covered under the Medicare program rise faster than the rate of inflation.

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, to
encourage importation from other countries and bulk purchasing.

18

 
 
 
 
 
 
 
 
 
 
 
 
Within  the  U.S.,  if  we  obtain  appropriate  approval  in  the  future  to  market  any  of  our  product  candidates,  we  may  seek  approval  and  coverage  for  those  products  under
Medicaid, Medicare and the Public Health Service, or PHS, pharmaceutical pricing program and may also seek to sell the products to federal agencies. Medicaid is a joint
federal and state program that is administered by the states for low-income and disabled beneficiaries. Under the Medicaid Drug Rebate Program, manufacturers are required to
pay a rebate for each unit of product reimbursed by the state Medicaid programs. The amount of the rebate for each product is set by law and may be subject to an additional
discount if certain pricing increases more than inflation. Medicare is a federal program administered by the federal government that covers individuals age 65 and over as well
as those with certain disabilities. Medicare Part D provides coverage to enrolled Medicare patients for self-administered drugs (i.e., drugs that do not need to be administered by
a  physician).  Medicare  Part  D  is  administered  by  private  prescription  drug  plans  approved  by  the  U.S.  government,  and  each  drug  plan  and/or  pharmacy  benefit  manager
establishes its own Medicare Part D formulary for prescription drug coverage and pricing, which the drug plan and/or pharmacy benefit manager may modify from time-to-
time. Medicare Part B covers most injectable drugs given in an in-patient setting and some drugs administered by a licensed medical provider in hospital outpatient departments
and doctors’ offices. Medicare Part B is administered by Medicare Administrative Contractors, which generally have the responsibility of making coverage decisions. Subject to
certain payment adjustments and limits, Medicare generally pays for Part B covered drugs based on a percentage of manufacturer-reported average sales price. Drug products
are subject to discounted pricing when purchased by federal agencies via the Federal Supply Schedule, or FSS. FSS participation is required for a drug product to be covered
and paid for by certain federal agencies and for coverage under Medicaid, Medicare Part B and the PHS pharmaceutical pricing program. FSS pricing is negotiated periodically
with the Department of Veterans Affairs. FSS pricing is intended to not exceed the price that a manufacturer charges its most-favored non-federal customer for its product. In
addition,  prices  for  drugs  purchased  by  the  Veterans Administration,  Department  of  Defense  (including  drugs  purchased  by  military  personnel  and  dependents  through  the
TRICARE retail pharmacy program), Coast Guard and PHS are subject to a cap on pricing (known as the “federal ceiling price”) and may be subject to an additional discount if
pricing  increases  more  than  inflation.  To  maintain  coverage  of  drugs  under  the  Medicaid  Drug  Rebate  Program,  manufacturers  are  required  to  extend  discounts  to  certain
purchasers under the PHS pharmaceutical pricing program. Purchasers eligible for discounts include hospitals that serve a disproportionate share of financially-needy patients,
community health clinics and other entities that receive health services grants from the PHS.

In March 2010, the U.S. Congress enacted the Patient Protection and Affordable Care Act and the Health Care and Education Reconciliation Act, or the Affordable Care Act,
which  included  changes  to  the  coverage  and  payment  for  drug  products  under  government  health  care  programs.  Since  its  enactment,  there  have  been  judicial  and
Congressional challenges to numerous elements of the Affordable Care Act, as well as efforts by both the executive and legislative branches of the federal government to repeal
or  replace  certain  aspects  of  the Affordable  Care Act.  For  example,  the  former  President  Trump  signed  Executive  Orders  designed  to  delay  the  implementation  of  certain
provisions  of  the Affordable  Care Act  or  otherwise  circumvent  some  of  the  requirements  for  health  insurance  mandated  by  the Affordable  Care Act.  In  addition,  the  U.S.
Congress  has  considered  legislation  that  would  repeal  or  repeal  and  replace  all  or  part  of  the Affordable  Care Act.  While  Congress  has  not  passed  comprehensive  repeal
legislation,  it  has  enacted  laws  that  modify  certain  provisions  of  the Affordable  Care Act,  such  as  removing  penalties,  starting  January  1,  2019,  for  not  complying  with  the
Affordable Care Act’s individual mandate to carry health insurance, delaying the implementation of certain mandated fees and increasing the point-of-sale discount that is owed
by  pharmaceutical  manufacturers  who  participate  in  Medicare  Part  D.  In  December  2018,  a  Texas  U.S.  District  Court  Judge  ruled  that  the  Affordable  Care  Act  is
unconstitutional in its entirety because the “individual mandate” was repealed by Congress as part of the Tax Cuts and Jobs Act of 2017, or the Tax Act. Although the Supreme
Court ruled the plaintiffs did not have standing in June of 2021, any other executive, legislative or judicial action to “repeal and replace” all or part of the Affordable Care Act
may have the effect of limiting the amounts that government agencies will pay for healthcare products and services, which could result in reduced demand for our products or
additional pricing pressure, or may lead to significant deregulation, which could make the introduction of competing products and technologies much easier.

Regardless of the future of the Affordable Care Act provisions, the Congress will continue to debate a range of policies that could impact the prices pharmaceutical companies
charge for products or how much they are reimbursed.

19

 
 
 
 
 
 
 
 
 
Environmental Regulation

In  addition  to  being  subject  to  extensive  regulation  by  the  FDA,  we  must  also  comply  with  environmental  regulation  insofar  as  such  regulation  applies  to  us  or  our  drug
candidates. Our costs of compliance with environmental regulation as applied to similar pharmaceutical companies are minimal, since we do not currently, nor do we intend to,
engage in the manufacturing of any of our drug candidates. We currently use unaffiliated manufacturers to produce all of our drug candidate material and receive final material
from such manufacturer, without any involvement on our part in the manufacturing process at any stage of the process.

Although we believe that our safety procedures for using, handling, storing and disposing of our drug candidate materials comply with the environmental standards required by
state and federal laws and regulations, we cannot completely eliminate the risk of accidental contamination or injury from these materials. We do not carry a specific insurance
policy to mitigate this risk to us or to the environment.

Employees

At December 31, 2023, we employed four full-time employees. We are not a party to any collective bargaining agreement with our employees, nor are any of our employees a
member of any labor unions.

To complement our own professional staff, we utilize specialists in regulatory affairs, pharmacovigilance, process engineering, manufacturing, quality assurance, preclinical
and clinical development, accounting and business development. These individuals include scientific advisors as well as independent consultants.

Competition

The  biotechnology  and  pharmaceutical  industries  are  characterized  by  rapidly  advancing  technologies,  intense  competition,  and  a  strong  emphasis  on  proprietary  products.
While we believe that our technology, development experience and scientific knowledge provide us with competitive advantages, we face potential competition from many
different  sources,  including  major  pharmaceutical,  specialty  pharmaceutical  and  biotechnology  companies,  academic  institutions  and  governmental  agencies  and  public  and
private research institutions. Any product candidates that we successfully develop and commercialize will compete with existing therapies and new therapies that may become
available in the future.

Many of our competitors may have significantly greater financial resources and expertise in research and development, manufacturing, preclinical testing, conducting clinical
trials, obtaining regulatory approvals, and marketing approved products than we do. Mergers and acquisitions in the pharmaceutical, biotechnology, and diagnostic industries
may result in even more resources being concentrated among a smaller number of our competitors. 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. Smaller or early stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and
established companies.

The key competitive factors affecting the success of all our product candidates, if approved, are likely to be their efficacy, safety, side effects, convenience, price, the level of
generic competition, and the availability of reimbursement from government and other third-party payors.

Our commercial opportunity could be reduced or eliminated if our competitors develop and commercialize products that are safer, more effective, have fewer or less severe side
effects, are more convenient, or are less expensive than any products that we may develop. Our competitors also may obtain FDA or other regulatory approval for their products
more  rapidly  than  we  may  obtain  approval  for  ours,  which  could  result  in  our  competitors  establishing  a  strong  market  position  before  we  are  able  to  enter  the  market.  In
addition, our ability to compete may be affected in many cases by insurers or other third-party payors seeking to encourage the use of generic products. There are many generic
products currently on the market for the indications that we are pursuing, and additional products are expected to become available on a generic basis over the coming years. If
our therapeutic product candidates are approved, we expect that they will be priced at a significant premium over competitive generic products.

20

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The most common methods of treating patients with cancer are surgery, radiation and drug therapy, including chemotherapy, hormone therapy, immunotherapy, and targeted
drug therapy. There are a variety of available drug therapies marketed for cancer. In many cases, these drugs are administered in combination to enhance efficacy. To the extent
our product candidates are ultimately used in combination with or as an adjunct to existing drug or other therapies, our product candidates will not be competitive with them.
Some of the currently approved drug therapies are branded and subject to patent protection, and others are available on a generic basis. Many of these approved drugs are well
established  therapies  and  are  widely  accepted  by  physicians,  patients  and  third-party  payors.  In  general,  although  there  has  been  considerable  progress  over  the  past  few
decades in the treatment of cancer and the currently marketed therapies provide benefits to many patients, these therapies all are limited to some extent in their efficacy and
frequency of adverse events, and none of them are successful in treating all patients. As a result, the level of morbidity and mortality from cancer remains high.

DNase for pancreatic cancer and solid tumors

In the field of pancreatic cancer, we will compete with the few, currently approved treatments for pancreatic carcinoma, including pancreatic ductal adenocarcinoma (“PDAC”).
In  the  first  line  setting,  Gemcitabine  in  combination  with Abraxane®  or  FOLFIRINOX  regimen  are  the  current  standard  of  care,  although  NALIRIFOX,  which  substitutes
liposomal  irinotecan  (Onivyde)  for  irinotecan,  recently  received  FDA  approval  for  first-line  treatment  of  metastatic  pancreatic  adenocarcinoma.  Oncologists  have  limited
options  of  existing  therapies  for  second-line  metastatic  patients.  The  only  FDA-approved  second-line  treatment  is  Onivyde®  in  combination  with  Fluorouracil  (5FU)  and
leucovorin (LV) for gemcitabine-treated patients. In addition to chemotherapy, Merck’s KEYTRUDA® was approved for MSI-H cancers (approximately 1% of all cases) and
Lynparza® was approved for maintenance of BRCA (or “BReast CAncer gene”) mutated pancreatic cancer (approximately 7% of all cases).

In the last years there have been a number of late-stage clinical failures of compounds for advanced PDAC. Most of these failed trials have been based on a single promising
endpoint. There are very few compounds in advanced stages of development in PDAC.

With respect to other solid tumors, there are a large number of companies developing treatments intended to be used in combination with approved immunotherapies, including
immune checkpoint inhibitors, to treat a variety of solid tumor indications. In the field of CRC, there are numerous approved treatments for CRC diagnosed at earlier stages.
However,  for  mCRC,  chemotherapy  remains  the  mainstay  of  systemic  treatment  for  MSS/MMRp  mCRC,  which  at  95%,  represent  the  majority  of  mCRC  patients.
Chemotherapy regimens will typically consist of a fluoropyrimidine (5-FU or capecitabine) paired in a two-drug regimen (doublet) with irinotecan or oxaliplatin. Treatment
regimens can be 5-FU- or capecitabine-based and can be either oxaliplatin-based (FOLFOX or CAPEOX) or irinotecan- based (FOLFIRI or CAPIRI) with no difference in
survival. Regimens with a three-drug (triplet) combination, FOLFIRINOX or FOLFOXIRI, are also available as first-line therapy and are commonly paired with the anti-VEGF
antibody  bevacizumab.  Second-line  therapy  is  tailored  according  to  previous  therapies.  In  general,  patients  who  receive  oxaliplatin-based  chemotherapy  upfront  should  be
treated with irinotecan-based chemotherapy and vice versa [20–22]. Biologics such as aflibercept ramucirumab are added based on molecular profiling. After progression on
second-line therapy, patients with RAS/BRAF wild-type disease receive an EGFR inhibitor combined with irinotecan. Alternatively, if they have HER2 mutation, trastuzumab
is typically preferred. Patients with the BRAFV600E mutation typically receive an encorafenib-cetuximab regimen.

For those 5% of patients with MSI-H/dMMR mCRC, immune checkpoint inhibitors are now the preferred first line therapy. However, 50% of those will fail and the therapeutic
options  then  become  very  limited.  Immunotherapy  is  so  far  largely  considered  ineffective  in  MSS/MMRp  mCRC.  We  will  compete  with  novel  combinations  of  ICIs  with
conventional cancer drugs or immunotherapeutics that have started to expose vulnerabilities in MSS/MMRp mCRC. These include dual immune checkpoint inhibition of both
the PD-1/L1 axis and CTLA-4. Other combinations being explored include immunotherapies combined with anti-EGFR antibodies, small molecule VEGFR inhibitors, small
molecule inhibitors against other targets (for example, KRAS), and novel ICIs targeting lymphocyte activation gene 3 (LAG3). These combination have shown modest benefit
and with the exception of LAG3, do not directly address the main reasons for ICI failure, which are lower mutation and neoantigen loads in MSS/MMRp mCRC compared to
MSI-H/MMRd mCRC, and immunosuppression.

21

 
 
 
 
 
 
 
 
 
 
 
 
PSA for Drug Delivery

Current competing platforms include PEGylation, Fc-fusion, albumin-fusion, HESylation, PASylation, and CTP-fusion, among others as well as those of academic institutions
and other smaller pharmaceutical companies engaged in drug development. In addition to competing with universities and other research institutions in the development of drug
products, therapies, technologies and processes, we may compete with other companies in acquiring rights to products or technologies from universities.

Available Information

Our website address is www.xeneticbio.com. The information on, or that can be accessed through, our website is not part of this Annual Report on Form 10-K. Our Annual
Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K and amendments to those reports are available, free of charge, on or through our
website  as  soon  as  practicable  after  we  electronically  file  such  forms,  or  furnish  them  to,  the  SEC.  The  SEC  maintains  an  internet  site  that  contains  reports,  proxy  and
information statements and other information regarding our filings at www.sec.gov.

In addition to disclosing current information pursuant to Section 13 or 15(d) of the Exchange Act and for reports of information required to be disclosed by Regulation FD
through our SEC filings, we also intend to disclose such current information through our investor relations website, press releases, public conference calls and webcasts.

22

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 1A – RISK FACTORS

Our business is subject to numerous risks. You should consider carefully the risks and uncertainties described below, in addition to other information contained in this Annual
Report  as  well  as  our  other  public  filings  with  the  Securities  and  Exchange  Commission. Any  of  the  following  risks  could  have  a  material  adverse  effect  on  our  business,
financial condition, results of operations and prospects and cause the trading price of our common stock to decline.

Risks Related to Our Financial Condition and Capital Requirements

We have never been profitable and may never achieve or sustain profitability. If we are unable to generate sufficient revenue from our operations to pay expenses or we are
unable  to  obtain  additional  financing  on  commercially  reasonable  terms,  our  business,  financial  condition  and  results  of  operations  may  be  materially  and  adversely
affected.

We are a clinical-stage biopharmaceutical company with a limited operating history. Pharmaceutical product and technology development is a highly speculative undertaking
and involves a substantial degree of risk. We have no products approved for commercial sale and have generated only limited revenue to date. Our primary focus is now on
advancing our DNase oncology platform via partnering opportunities or through regulatory approval and commercialization. We expect to continue to incur significant research
and  development  and  other  expenses  related  to  our  ongoing  operations. As  a  result,  we  have  never  been  profitable  and  we  may  not  achieve  profitability  in  the  foreseeable
future, if at all. Our ability to generate profits in the future will depend on a number of factors, including:

·

Funding the costs relating to the research and development, regulatory approval, commercialization and sale and marketing of our drug candidates and
technologies;

· Market acceptance of our drug candidates and technologies;
·
·
·
·
·
·
·
·

Costs of acquiring and developing new drug candidates and technologies;
Ability to bring our drug candidates to market;
General and administrative costs relating to our operations;
Increases in our research and development costs;
Charges related to purchases of technology or other assets;
Establishing, maintaining and protecting our intellectual property rights;
Attracting, hiring and retaining qualified personnel; and
Our ability to raise additional capital.

As of December 31, 2023, we had an accumulated deficit of approximately $193.2 million. We expect to incur additional significant operating losses as we expand our research
and development activities and our commercialization, marketing and sales efforts. We may also encounter unforeseen expenses, difficulties, complications, delays and other
unknown  factors  that  may  adversely  affect  our  business.  In  addition,  because  of  the  numerous  risks  and  uncertainties  associated  with  pharmaceutical  product  development,
including that our current drug candidates may not achieve the clinical endpoints of applicable trials, we are unable to predict the timing or amount of increased expenses and if
or when we will achieve or maintain profitability. If we are unable to generate sufficient revenue from our operations to pay expenses or we are unable to obtain additional
financing on commercially reasonable terms, our business, financial condition and results of operations may be materially and adversely affected.

23

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We will require substantial additional funding to achieve our goals. Failure to obtain this necessary capital when needed on acceptable terms, or at all, may force us to
delay, limit or terminate our product development efforts, other operations or commercialization efforts.

Developing drug candidates is an expensive, risky and lengthy process, and we expect our expenses to increase in connection with our ongoing activities, particularly as we
continue the research and development of, initiate clinical trials of, and seek marketing approval for, our drug candidates.

As  of  December  31,  2023,  we  had  cash  of  approximately  $9.0  million.  We  expect  that  we  will  require  additional  capital  to  commence  and  complete  clinical  trials,  obtain
regulatory approval for, and to commercialize, our drug candidates, including our other preclinical drug candidates and our future drug candidates. However, our operating plan
may change as a result of many factors currently unknown to us, and we may need to seek additional funds sooner than planned. Additional funding may come through public
or private equity or debt financings, third-party funding, marketing and distribution arrangements or other collaborations, strategic alliances and licensing arrangements (or a
combination  of  these  approaches).  In  any  event,  we  will  require  additional  capital  to  pursue  preclinical  and  clinical  activities,  pursue  regulatory  approval  for,  and  to
commercialize, our longer term pipeline drug candidates. Even if we believe we have sufficient funds for our current or future operating plans, we may seek additional capital if
market conditions are favorable or if we have specific strategic considerations.

Our  ability  to  raise  additional  funds  will  depend  on  financial,  economic,  political,  and  market  conditions  and  other  factors  over  which  we  may  have  no  or  limited  control.
Market volatility resulting from economic, political or other factors, such as geopolitical tension, including the conflicts in the Ukraine and the Middle East, and any resulting
sanctions, export controls or other restrictive actions, could also adversely impact our ability to access capital as and when needed. Additional funds may not be available when
we need them, on terms and at a cost that are acceptable to us, or at all.

Any additional fundraising efforts may divert our management from their day-to-day activities, which may adversely affect our ability to develop and commercialize our drug
candidates. In addition, we cannot guarantee that future financing will be available in sufficient amounts or on terms acceptable to us, if at all. Moreover, the terms of any
financing may negatively impact the holdings or the rights of our stockholders, and the issuance of additional securities (whether equity or debt) by us, or the possibility of such
issuance, may cause the market price of our shares to decline. The incurrence of indebtedness could result in increased fixed payment obligations, and we may be required to
agree to certain restrictive covenants, such as limitations on our ability to incur additional debt, limitations on our ability to acquire, sell or license intellectual property rights
and other operating restrictions that could adversely impact our ability to conduct our business.

If  we  are  unable  to  obtain  funding  on  a  timely  basis,  we  may  be  required  to  significantly  curtail,  delay  or  discontinue  our  pre-clinical  development  program  or  the
commercialization of any drug candidates. We may also be unable to expand our operations or otherwise capitalize on our business opportunities, as desired, which could harm
our business, financial condition and results of operations.

Raising additional capital may cause dilution to our stockholders, restrict our operations or require us to relinquish rights to our technologies or drug candidates.

Until such time, if ever, as we can generate substantial product revenues, we expect to finance our cash needs through a combination of equity and debt financings, as well as
selectively  continuing  to  enter  into  collaborations,  strategic  alliances  and  licensing  arrangements. We  do  not  currently  have  any  committed  external  source  of  funds. To  the
extent that we raise additional capital through the sale of equity or convertible debt securities, equity interests will be diluted, and the terms of these securities may include
liquidation  or  other  preferences  that  adversely  affect  the  rights  of  our  stockholders.  Debt  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. Such debt financing may also be secured by
all or a portion of our assets.

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

24

 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
Risks Related to the Discovery and Development of our Pharmaceutical Products

Our business is substantially dependent on the success of the DNase oncology platform.

Our  business  will  substantially  depend  on  the  successful  clinical  development,  regulatory  approval  and  commercialization  of  the  DNase  oncology  platform.  It  will  require
substantial clinical development and regulatory approval efforts before we are permitted to commence its commercialization, if ever. We have, and plan to continue to pursue
our clinical development strategy through academic and strategic collaborations. If we have difficulty maintaining, obtaining, or are unable to obtain these collaborations and
additional academic collaborations as planned, we may need to delay, limit or terminate any ongoing or planned clinical development, which would have an adverse effect on
our business. The clinical trials and manufacturing and marketing of DNase and any other product candidates will be subject to extensive and rigorous review and regulation by
numerous  government  authorities  in  the  U.S.,  the  European  Union  and  other  jurisdictions  where  we  intend  to  test  and,  if  approved,  market  our  product  candidates.  Before
obtaining regulatory approvals for the commercial sale of any product candidate, we must demonstrate through preclinical testing and clinical trials that the product candidate is
safe and effective for use in each target indication and potentially in specific patient populations. This process can take many years and may include post-marketing studies and
surveillance,  which  would  require  the  expenditure  of  substantial  resources  beyond  the  proceeds  we  have  currently  raised.  Of  the  large  number  of  drugs  in  development  for
approval  in  the  U.S.  and  the  European  Union,  only  a  small  percentage  successfully  complete  the  FDA  or  European  Medicines Agency  regulatory-approval  processes,  as
applicable, and are commercialized. Accordingly, even if we are able to obtain the requisite financing or identify an academic or strategic collaboration partner to continue to
fund  our  research,  development  and  clinical  programs,  we  cannot  assure  you  that  DNase  or  any  of  our  other  product  candidates  will  be  successfully  developed  or
commercialized.

We  are  an  early  stage  company  in  the  business  of  developing  pharmaceutical  products  including  drug  candidates  and  technologies.  Given  the  uncertainty  of  such
development, our business operations may never fully materialize and create value for investors.

We have invested substantially all of our efforts and financial resources in developing our products, and we currently do not have any products that have gained marketing
approval. Our revenues currently consist primarily of royalty revenue from a single partner and not from product sales. Our ability to generate product revenues, which may not
occur for several more years, if ever, will depend on the successful development and eventual commercialization of our drug candidates. We currently generate royalty revenue
under a sub-license agreement but do not have revenue from sales of any drugs, and we may never be able to develop or commercialize a marketable drug. Each of our drug
candidates will require development, management of development and manufacturing activities, marketing approval in multiple jurisdictions, obtaining manufacturing supply,
building of a commercial organization, substantial investment and significant marketing efforts before we generate any revenues from drug sales. We have not yet demonstrated
an  ability  to  successfully  overcome  many  of  the  risks  and  uncertainties  frequently  encountered  by  companies  in  new  and  rapidly-evolving  fields,  particularly  in  the
pharmaceutical area. For example, to execute our business plan we will need to successfully:

·
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·

·

Execute development activities for our drug candidates, including successful enrollment in and completion of clinical trials;
Obtain required marketing approvals for the development and commercialization of our drug candidates;
Obtain and maintain patent and trade secret protection or regulatory exclusivity for our drug candidates;
Protect, leverage and expand our intellectual property portfolio;
Establish  and  maintain  clinical  and  commercial  manufacturing  capabilities  or  make  arrangements  with  third-party  manufacturers  for  clinical  and  commercial
manufacturing;
Build and maintain robust sales, distribution and marketing capabilities, either on our own or in collaboration with strategic partners, if our drug candidates are
approved;
Gain acceptance for our drug candidates, if approved, by patients, the medical community and third-party payors;
Effectively compete with other therapies;
Obtain and maintain healthcare coverages and adequate reimbursement;

·
·
·
· Maintain a continued acceptable safety profile for our drug candidates following approval;
·
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· Manage our spending as costs and expenses increase due to preclinical development, clinical trials, marketing approvals and commercialization.

Develop and maintain any strategic relationships we elect to enter into, if any;
Enforce and defend intellectual property rights and claims; and

25

 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We may find it difficult to enroll patients in our clinical studies, which could delay or prevent clinical studies of our pharmaceutical products.

Identifying and qualifying patients to participate in clinical studies of our pharmaceutical products is critical to our success. The timing of our clinical studies depends on the
speed at which we can recruit patients to participate in testing our pharmaceutical products. We may experience delays. If patients are unwilling to participate in our clinical
studies  because  of  negative  publicity  from  adverse  events  in  the  biopharmaceutical  industries  or  for  other  reasons,  including  competitive  clinical  studies  for  similar  patient
populations,  the  timeline  for  recruiting  patients,  conducting  studies  and  obtaining  regulatory  approval  of  potential  products  may  be  delayed.  These  delays  could  result  in
increased costs, delays in advancing our product development, delays in testing the effectiveness of our technology or termination of the clinical studies altogether.

We may not be able to identify, recruit and enroll a sufficient number of patients, or those with required or desired characteristics to achieve diversity in a study, to complete our
clinical studies in a timely manner. Patient enrollment is affected by many factors, including:

·
·
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·
·
·
·
·

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Severity of the disease under investigation;
Real or perceived availability of alternative treatments;
Size and nature of the patient population;
Eligibility criteria for and design of the trial in question;
Perceived risks and benefits of the drug candidate under study;
Proximity and availability of clinical sites for prospective patients;
Ongoing clinical trials of potentially competitive agents;
Physicians’ and patients’ perceptions as to the potential advantages of our drug candidates being studied in relation to available therapies or other products under
development;
Our CRO’s and our trial sites’ efforts to facilitate timely enrollment in clinical trials;
Patient referral practices of physicians; and
The need to monitor patients and collect patient data adequately during and after treatment.

We may not be able to initiate or continue clinical studies if we cannot enroll a sufficient number of eligible patients to participate in the clinical studies required by the FDA or
other regulatory agencies. Our ability to successfully initiate, enroll and complete a clinical study 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 studies;
Our 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 to conduct our clinical studies as planned, we may need to delay, limit or terminate ongoing or planned clinical
studies, any of which would have an adverse effect on our business.

26

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
We may encounter substantial delays in commencement, enrollment or completion of our clinical trials, or we may fail to demonstrate safety and efficacy to the satisfaction
of applicable regulatory authorities, which could prevent us from commercializing our current and future drug candidates on a timely basis, if at all.

Before obtaining marketing approval from regulatory authorities for the sale of our current and future drug candidates, we must conduct extensive clinical trials to demonstrate
the safety and efficacy of the drug candidates. We cannot guarantee that any clinical studies will be conducted as planned or completed on schedule, if at all. A failure of one or
more clinical studies can occur at any stage of testing. Events that may prevent successful or timely completion of clinical development include:

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Delays in reaching a consensus with regulatory agencies on study design;
Delays in reaching agreement on acceptable terms with prospective CROs and clinical study sites;
Delays in obtaining required IRB, or Independent Ethics Committee approval at each clinical study site;
Delays in recruiting suitable patients to participate in our clinical studies;
Imposition of a clinical hold by regulatory agencies, including after an inspection of our clinical study operations or study sites;
Failure by our CROs, other third parties or us to adhere to clinical study requirements;
Failure to perform in accordance with the FDA’s GCP or applicable regulatory requirements in other countries;
Delays in the testing, validation, manufacturing and delivery of our drug candidates to the clinical sites;
Delays in having patients complete participation in a study or return for post-treatment follow-up;
Clinical study sites or patients dropping out of a study;
Clinical trial results may fail to demonstrate the safety and/or efficacy of the drug candidate;
Occurrence of serious adverse events associated with the drug candidate that are viewed to outweigh its potential benefits; or
Changes in regulatory requirements and guidance that require amending or submitting new clinical protocols.

Any inability to successfully complete preclinical studies and clinical trials could result in additional costs to us or impair our ability to generate revenues from product sales,
regulatory  and  commercialization  milestones  and  royalties.  In  addition,  if  we  make  manufacturing  or  formulation  changes  to  our  drug  candidates,  we  may  need  to  conduct
additional studies to bridge our modified drug candidates to earlier versions. Clinical trial delays also could shorten any periods during which we may have the exclusive right
to commercialize our drug candidates or allow our competitors to bring products to market before we do, which could impair our ability to successfully commercialize our drug
candidates and may harm our business, financial condition, results of operations and prospects.

If the results of our clinical studies are inconclusive or if there are safety concerns or adverse events associated with our pharmaceutical products, we may:

·
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Be delayed in obtaining marketing approval or licenses for our drug candidates, if we receive them at all;
Obtain approval for indications or patient populations that are not as broad as intended or desired;
Obtain approval with labeling that includes significant use or distribution restrictions or safety warnings;
Be subject to changes with the way the product is administered;
Be required to perform additional clinical studies to support approval or be subject to additional post-marketing testing requirements;
Have  regulatory  authorities  withdraw  their  approval  of  the  product  or  impose  restrictions  on  its  distribution  in  the  form  of  a  modified  risk  evaluation  and
mitigation strategy;
Be subject to the addition of labeling statements, such as warnings or contraindications;
Be sued; or
Experience damage to our reputation.

As described above, any of these events could prevent us from achieving or maintaining market acceptance and approval of our pharmaceutical products and impair our ability
to generate revenues.

27

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
If we complete the necessary preclinical and clinical studies, we cannot predict when or if we will obtain regulatory approval to commercialize a drug candidate, or the
approval may be for a more narrow indication than we expect.

A  drug  candidate  cannot  be  commercialized  until  the  appropriate  regulatory  authorities  have  reviewed  and  approved  the  drug  candidate.  Even  if  our  drug  candidates
demonstrate  safety  and  efficacy  in  clinical  studies,  the  regulatory  agencies  may  not  complete  their  review  processes  in  a  timely  manner,  or  we  may  not  be  able  to  obtain
regulatory approval. Additional delays may result if an FDA Advisory Committee or other regulatory advisory group or authority recommends non-approval or restrictions on
approval.  In  addition,  we  may  experience  delays  or  rejections  based  upon  additional  government  regulation  from  future  legislation  or  administrative  action  or  changes  in
regulatory agency policy during the period of product development, clinical studies and the review process. Regulatory agencies also may approve a drug candidate for fewer or
more  limited  indications  than  requested  or  may  grant  approval  subject  to  the  performance  of  post-marketing  studies.  In  addition,  regulatory  agencies  may  not  approve  the
labeling claims that are necessary or desirable for the successful commercialization of our drug candidates. Failure to obtain, or a delay in obtaining, regulatory approval to
commercialize a drug candidate will impair our ability to generate revenues and harm our business prospects.

If we obtain regulatory approval for a drug candidate, our drug candidate will remain subject to regulatory scrutiny.

If our drug candidates are approved, they will be subject to ongoing regulatory requirements for manufacturing, labeling, packaging, storage, advertising, promotion, sampling,
record-keeping,  reporting,  conduct  of  post-marketing  studies  and  submission  of  safety,  efficacy  and  other  post-market  information,  including  both  federal  and  state
requirements in the United States and requirements of comparable foreign regulatory authorities.

Manufacturers  and  manufacturing  facilities  are  required  to  comply  with  extensive  FDA  and  comparable  foreign  regulatory  authority  requirements,  including  ensuring  that
quality control and manufacturing procedures conform to cGMP regulations. As such, we will be subject to continual review and inspections to assess compliance with cGMP
and adherence to commitments made in any NDA, BLA or marketing authorization application (“MAA”). Accordingly, we and our collaborators and suppliers must continue to
expend time, money and effort in all areas of regulatory compliance, including manufacturing, production and quality control.

Any  regulatory  approvals  that  we  or  our  collaboration  partners  receive  for  our  drug  candidates  may  be  subject  to  limitations  on  the  approved  indicated  uses  for  which  the
product may be marketed or to the conditions of approval or may contain requirements for potentially costly additional clinical trials and surveillance to monitor the safety and
efficacy of the drug candidate. We will be required to report certain adverse reactions, serious adverse events and production problems, if any, to the FDA and comparable
foreign  regulatory  authorities.  Any  new  legislation  addressing  drug  safety  or  other  issues  related  to  regulatory  review  and  approval  could  result  in  delays  in  product
development or commercialization or increased costs to assure compliance. We will have to comply with requirements concerning advertising and promotion for our products.
Promotional communications with respect to prescription drugs are subject to a variety of legal and regulatory restrictions and must be consistent with the information in the
product’s approved label. As such, we are not allowed to promote our products for indications or uses for which they do not have approval. If our drug candidates are approved,
we must submit new or supplemental applications and obtain approval for certain changes to the approved products, product labeling or manufacturing process. We could also
be asked to conduct post-marketing clinical trials to verify the safety and efficacy of our products in general or in specific patient subsets. An unsuccessful post-marketing study
or failure to complete such a study could result in the withdrawal of marketing approval.

28

 
 
 
 
 
 
 
 
 
 
 
 
 
 
If a regulatory agency discovers previously unknown problems with an approved product, such as adverse events of unanticipated severity or frequency or problems with our
manufacturing facilities, or if a regulatory agency disagrees with the promotion, marketing or labeling of a product, such regulatory agency may impose restrictions on that
product or us, including requiring withdrawal of the product from the market. If we fail to comply with applicable regulatory requirements, a regulatory agency or enforcement
authority may, among other things:

·
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Issue inspectional findings;
Issue untitled and warning letters;
Impose civil or criminal penalties;
Suspend or withdraw regulatory approval or revoke a license;
Suspend or hold any of our ongoing clinical trials;
Refuse to approve pending applications or supplements to approved applications submitted by us;
Impose restrictions on our operations, including closing our manufacturing facilities; or
Seize or detain products or require a product recall.

Any government investigation of alleged violations of law could require us to expend significant time and resources in response and could generate negative publicity. Any
failure  to  comply  with  ongoing  regulatory  requirements  may  significantly  and  adversely  affect  our  ability  to  commercialize  and  generate  revenue  from  our  products.  If
regulatory sanctions are applied or if regulatory approval is withdrawn, the value of the Company and our operating results will be negatively impacted.

The commercial success of any current or future pharmaceutical products will depend upon the degree of market acceptance by physicians, patients, third-party payors
and others in the medical community.

Even  with  the  requisite  approvals,  the  commercial  success  of  our  pharmaceutical  products  will  depend  in  part  on  the  medical  community,  patients  and  third-party  payors
accepting  our  pharmaceutical  products  as  medically  useful,  cost-effective  and  safe. Any  pharmaceutical  product  that  we,  or  our  partners,  bring  to  the  market  may  not  gain
market  acceptance  by  physicians,  patients,  third-party  payors  or  others  in  the  medical  community.  The  degree  of  market  acceptance  of  these  pharmaceutical  products,  if
approved for commercial sale, will depend on a number of factors, including:

·
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·
·
·
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·

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The effectiveness of our approved drug candidates as compared to currently available products;
Patient willingness to adopt our approved drug candidates in place of current therapies;
Our ability to provide acceptable evidence of safety and efficacy;
Relative convenience and ease of administration;
The prevalence and severity of any adverse side effects;
Restrictions on use in combination with other products;
Availability of alternative treatments;
Pricing  and  cost-effectiveness  assuming  either  competitive  or  potential  premium  pricing  requirements,  based  on  the  profile  of  our  drug  candidates  and  target
markets;
Effectiveness of our or our partners’ sales and marketing strategy;
Our ability to obtain sufficient third-party coverage or reimbursement; and
Potential product liability claims.

Even if a potential product displays a favorable efficacy and safety profile in preclinical and clinical studies, market acceptance of the product will not be known until after it is
launched. Our efforts to educate the medical community and third-party payors on the benefits of the pharmaceutical products may require a significant amount of resources
and may never be successful. If these products do not achieve an adequate level of acceptance, we may not generate significant product revenue and may not become profitable.

29

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
The commercial potential of a pharmaceutical candidate in development is difficult to predict. If the market size for a new drug candidate or technology is significantly
smaller than we anticipate, it could significantly and negatively impact our revenue, results of operations and financial condition.

It  is  very  difficult  to  estimate  the  commercial  potential  of  pharmaceutical  products  due  to  important  factors,  such  as  safety  and  efficacy  compared  to  other  available
technologies or treatments, including changing standards of care, third-party payor reimbursement standards, patient and physician preferences, the availability of competitive
alternatives that may emerge either during the long drug development process or after commercial introduction and the availability of generic versions of our successful drug
candidates following approval by government health authorities, based on the expiration of regulatory exclusivity or our inability to prevent generic versions from coming to
market  by  asserting  our  patents.  If  due  to  these  factors,  or  others,  the  market  potential  for  a  pharmaceutical  product  is  lower  than  we  anticipated,  it  could  significantly  and
negatively impact the commercial terms of any collaboration partnership potential for such pharmaceutical product or, if we have already entered into a collaboration for such
pharmaceutical product, the revenue potential from royalty and milestone payments could be significantly diminished, which would negatively impact our business, financial
condition and results of operations.

Failure to obtain or maintain adequate coverage and reimbursement for our drug candidates, if approved, could limit our ability to market those products and decrease our
ability to generate revenue.

The success of our drug candidates, if approved, depends on the availability of adequate coverage and reimbursement from third-party payors. In addition, because our drug
candidates represent new approaches to the treatment of certain diseases, we cannot be sure that coverage and reimbursement will be available for, or accurately estimate the
potential revenue from, our drug candidates or assure that coverage and reimbursement will be available for any product that we may develop.

Patients  who  are  provided  medical  treatment  for  their  conditions  generally  rely  on  third-party  payors  to  reimburse  all  or  part  of  the  costs  associated  with  their  treatment.
Adequate coverage and reimbursement from federal health care programs, such as Medicare and Medicaid, and commercial payors are critical to new product acceptance.

Government authorities and third-party payors, such as private health insurers and health maintenance organizations, as well as their pharmacy benefit managers decide which
drugs and treatments they will cover and the amount of reimbursement. Coverage and reimbursement by a third-party payor may depend upon a number of factors, including
the third-party payor’s determination that use of a product is:

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A covered benefit under its health plan;
Safe, effective and medically necessary;
Appropriate for the specific patient;
Cost-effective; and
Neither experimental nor investigational.

In  the  United  States,  no  uniform  policy  of  coverage  and  reimbursement  for  products  exists  among  third-party  payors  and  their  contracted  pharmacy  benefit  managers  that
manage prescription benefits for such payors. As a result, obtaining coverage and reimbursement approval of a product from a government or other third-party payor is a time-
consuming and costly process that could require us to provide to each payor supporting scientific, clinical and cost-effectiveness data for the use of our products on a payor-by-
payor  basis,  with  no  assurance  that  coverage  and  adequate  reimbursement  will  be  obtained.  Even  if  we  obtain  coverage  for  a  given  product,  the  resulting  reimbursement
payment rates might not be adequate for us to achieve or sustain profitability or may require co-payments that patients find unacceptably high. Additionally, third-party payors
and their pharmacy benefit managers may not cover, or provide adequate reimbursement for, long-term follow-up evaluations that may be required for our products. Patients are
unlikely to use our drug candidates unless coverage is provided and reimbursement is adequate to cover a significant portion of the cost of our drug candidates and/or if patient
out-of-pocket  costs  (such  as  co-pays  or  co-insurance)  are  prohibitively  high.  There  is  significant  uncertainty  related  to  insurance  coverage  and  reimbursement  of  newly-
approved products. It is difficult to predict at this time what third-party payors will decide with respect to the coverage and reimbursement for our drug candidates.

30

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
Moreover, increasing efforts by governmental and third-party payors in the United States and abroad to cap or reduce healthcare costs may cause such organizations to limit
both  coverage  and  the  level  of  reimbursement  for  newly-approved  products  and,  as  a  result,  they  may  not  cover  or  provide  adequate  payment  for  our  drug  candidates. We
expect to experience pricing pressures in connection with the sale of any of our drug candidates due to the trend toward managed healthcare, value-based pricing, the increasing
influence of health maintenance organizations, cost containment initiatives and additional legislative changes.

We intend to seek approval to market our drug candidates in both the United States and in select foreign jurisdictions. If we obtain approval in one or more foreign jurisdictions
for  our  drug  candidates,  we  will  be  subject  to  rules  and  regulations  in  those  jurisdictions.  In  some  foreign  countries,  the  pricing  of  pharmaceutical  products  is  subject  to
governmental  control  and  other  market  regulations  which  could  put  pressure  on  the  pricing  and  usage  of  our  drug  candidates.  In  these  countries,  pricing  negotiations  with
governmental authorities can take considerable time after obtaining marketing approval of a drug candidate. In addition, market acceptance and sales of our drug candidates
will depend significantly on the availability of adequate coverage and reimbursement from third-party payors for our drug candidates and may be affected by existing and future
health care reform measures. Failure to obtain or maintain adequate coverage and reimbursement for our drug candidates, if approved, could limit our ability to market those
products and decrease our ability to generate revenue.

We may use our financial and human resources to pursue a particular research program or drug candidate and fail to capitalize on programs or drug candidates that may
be more profitable or for which there is a greater likelihood of success.

Because we have limited resources, we may forego or delay pursuit of opportunities with certain programs, drug candidates or for indications that later prove to have greater
commercial potential. Our resource allocation decisions may cause us to fail to capitalize on viable commercial products or profitable market opportunities. Our spending on
current and future research and development programs for drug candidates may not yield any commercially viable products. If we do not accurately evaluate the commercial
potential or target market for a particular drug candidate, we may relinquish valuable rights to that drug candidate through strategic collaboration, licensing or other royalty
arrangements  in  cases  in  which  it  would  have  been  more  advantageous  for  us  to  retain  sole  development  and  commercialization  rights  to  such  drug  candidate,  or  we  may
allocate internal resources to a drug candidate in a therapeutic area in which it would have been more advantageous to enter into a partnering arrangement. Failure to pursue
opportunities with greater commercial potential or relinquishing valuable rights to drug candidates may adversely impact our business, results of operations and prospects.

We may not be successful in our efforts to identify or discover additional pharmaceutical products.

The  success  of  our  business  depends  primarily  upon  our  ability  to  identify  and  develop  pharmaceutical  products.  Our  research  programs  may  fail  to  identify  potential
pharmaceutical products for clinical development for a number of reasons. Our research methodology may be unsuccessful in identifying potential pharmaceutical products, or
our potential pharmaceutical products may be shown to have harmful side effects or may have other characteristics that may make the products unmarketable or unlikely to
receive marketing approval.

If any of these events occur, we may be forced to abandon our development efforts for a program or programs, which would have a material adverse effect on our business and
could potentially cause us to cease operations. Research programs to identify new pharmaceutical products require substantial technical, financial and human resources. We
may focus our efforts and resources on potential programs or pharmaceutical products that ultimately prove to be unsuccessful. If we are not successful in our efforts to identify
or discover additional pharmaceutical products, it could adversely affect our business, results of operations and prospects.

31

 
 
 
 
 
 
 
  
 
 
 
 
 
 
The market opportunities for our drug candidates may be limited to those patients who are ineligible for or have failed prior treatments and may be small.

Cancer therapies are sometimes characterized as first line, second line or third line, and the FDA often approves new therapies initially only for third line use. When cancer is
detected  early  enough,  first  line  therapy  is  sometimes  adequate  to  cure  the  cancer  or  prolong  life  without  a  cure.  Whenever  first  line  therapy,  which  usually  consists  of
chemotherapy, hormone therapy, surgery or a combination of these, proves unsuccessful, second line therapy may be administered. Second line therapies often consist of more
chemotherapy, radiation, antibody drugs, tumor targeted small molecules or a combination of these. Third line therapies can include bone marrow transplantation, antibody and
small molecule targeted therapies, more invasive forms of surgery and new technologies. In markets with approved therapies, we expect to initially seek approval of our drug
candidates  as  a  later  stage  therapy  for  patients  who  have  failed  other  approved  treatments.  Subsequently,  for  those  drugs  that  prove  to  be  sufficiently  beneficial,  if  any,  we
would expect to seek approval as a second line therapy and potentially as a first line therapy, but there is no guarantee that our drug candidates, even if approved, would be
approved for second line or first line therapy. In addition, we may have to conduct additional clinical trials prior to gaining approval for second line or first line therapy.

Our projections of both the number of people who have the cancers we are targeting, as well as the subset of people with these cancers in a position to receive later stage
therapy and who have the potential to benefit from treatment with our drug candidates, are based on our beliefs and estimates. These estimates have been derived from a variety
of  sources,  including  scientific  literature,  surveys  of  clinics,  patient  foundations  or  market  research  and  may  prove  to  be  incorrect.  Further,  new  studies  may  change  the
estimated incidence or prevalence of these cancers. The number of patients may turn out to be lower than expected. In addition, the potentially addressable patient population
for our drug candidates may be limited or may not be amenable to treatment with our drug candidates. Even if we obtain significant market share for our drug candidates, we
may never achieve profitability without obtaining regulatory approval for additional indications, including use as a first or second line therapy, which may adversely affect our
business and results of operations.

Clinical trials may fail to demonstrate the safety and efficacy of our pharmaceutical drug candidates and could prevent or significantly delay regulatory approval.

Before receiving NDA or BLA approval to commercialize a drug candidate, we must demonstrate to the FDA, with substantial evidence from well-controlled clinical trials, that
the drug candidate is both safe and effective or the biologic is safe, pure and potent. If these trials or future clinical trials are unsuccessful, our business and reputation could be
harmed and our stock price could be adversely affected.

Clinical  failure  can  occur  at  any  stage  of  clinical  development.  Clinical  trials  may  produce  negative  or  inconclusive  results,  and  we  or  any  of  our  current  and  future
collaborators  may  decide,  or  regulators  may  require  us,  to  conduct  additional  clinical  or  preclinical  testing.  We  will  be  required  to  demonstrate  with  substantial  evidence
through well-controlled clinical trials that our drug candidates are as safe and effective for use in a specific patient population as the respective reference products before we can
seek regulatory approvals for their commercial sale. Success in early clinical trials does not mean that future larger registration clinical trials will be successful because drug
candidates  in  later-stage  clinical  trials  may  fail  to  demonstrate  equivalent  safety  and  efficacy  to  the  satisfaction  of  the  FDA  and  foreign  regulatory  agencies  despite  having
progressed  through  initial  clinical  trials.  Drug  candidates  that  have  shown  promising  results  in  early  clinical  trials  may  still  fail  in  subsequent  confirmatory  clinical  trials.
Similarly, the outcome of preclinical testing and early clinical trials may not be predictive of the success of later clinical trials, and interim results of a clinical trial do not
necessarily predict final results. A number of companies in the pharmaceutical industry, including those with greater resources and experience than us, have suffered significant
setbacks in advanced clinical trials, even after obtaining promising results in earlier clinical trials.

In addition, 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. We  may  be  unable  to  design  and  execute  a  clinical  trial  to  support  regulatory  approval.  In  some  instances,  there  can  be  significant
variability  in  safety  or  efficacy  results  between  different  trials  of  the  same  drug  candidate  due  to  numerous  factors,  including  but  not  limited  to,  changes  in  trial  protocols,
differences in size and type of the patient populations, adherence to the dosing regimen and the rate of dropout among clinical trial participants.

Because  of  these  risks,  our  research  and  development  efforts,  and  those  of  our  collaborative  partners,  may  not  result  in  any  commercially  viable  products.  If  a  significant
portion of these development efforts is not successfully completed, or if required regulatory approvals are not obtained by us or our partners, or any approved products are not
commercially successful, we may not generate significant revenues or become profitable.

32

 
 
 
  
 
 
 
 
  
 
 
 
 
We may fail to obtain orphan drug designations from the FDA for our drug candidates, and even if we obtain such designations, we may be unable to maintain the benefits
associated with orphan drug designation, including the potential for market exclusivity.

Under the Orphan Drug Act, the FDA may grant orphan drug designation to a drug or biologic intended to treat a rare disease or condition, which is defined as one occurring in
a patient population of fewer than 200,000 in the United States, or a patient population greater than 200,000 in the United States where there is no reasonable expectation that
the cost of developing the drug or biologic will be recovered from sales in the United States. In the United States, orphan drug designation entitles a party to financial incentives
such as opportunities for grant funding towards clinical trial costs, tax advantages and user-fee waivers. In addition, if a product that has orphan drug designation subsequently
receives the first FDA approval for the disease for which it has such designation, the product is entitled to orphan drug exclusivity, which means that the FDA may not approve
any other applications, including a full NDA or BLA, to market the same drug or biologic for the same indication for seven years, except in limited circumstances, such as a
showing of clinical superiority to the product with orphan drug exclusivity or where the manufacturer is unable to assure sufficient product quantity.

We may seek to obtain orphan drug designation for our active drug candidates for any qualifying indications they may be approved for in the future. Even if we obtain such
designations,  we  may  not  be  the  first  to  obtain  marketing  approval  of  our  drug  candidate  for  the  orphan-designated  indication  due  to  the  uncertainties  associated  with
developing pharmaceutical products. In addition, exclusive marketing rights in the United States may be limited if we seek approval for an indication broader than the orphan-
designated indication, or may be lost if the FDA later determines that the request for designation was materially defective or if the manufacturer is unable to assure sufficient
quantities of the product to meet the needs of patients with the rare disease or condition. Further, even if we obtain orphan drug exclusivity for a product, that exclusivity may
not effectively protect the product from competition because different drugs with different active moieties can be approved for the same condition. Even after an orphan product
is  approved,  the  FDA  can  subsequently  approve  the  same  drug  with  the  same  active  moiety  for  the  same  condition  if  the  FDA  concludes  that  the  later  drug  is  safer,  more
effective or makes a major contribution to patient care. Orphan drug designation neither shortens the development time or regulatory review time of a drug, nor gives the drug
any  advantage  in  the  regulatory  review  or  approval  process.  In  addition,  even  if  we  seek  orphan  drug  designation  for  our  drug  candidates,  we  may  never  receive  such
designations.

Healthcare legislative reform measures may have a material adverse effect on our business and results of operations.

In both the United States and certain foreign jurisdictions, there have been a number of legislative and regulatory enactments in recent years that change the healthcare system
in ways that could impact our future ability to sell our drug candidates profitably.

Furthermore, there have been and continue to be a number of initiatives at the federal and state level that seek to reduce healthcare costs. Most significantly, in March 2010, the
Patient Protection and Affordable Health Care Act, as amended by the Health Care and Education Reconciliation Act (collectively, the “ACA”), was signed into law, which
includes  measures  that  significantly  change  the  way  healthcare  is  financed  by  both  governmental  and  private  insurers.  In  January  2017,  Congress  voted  to  adopt  a  budget
resolution for fiscal year 2017, or the Budget Resolution, that authorizes the implementation of legislation that would repeal portions of the ACA. In addition, on January 20,
2017, former President Trump signed an Executive Order directing federal agencies with authorities and responsibilities under the ACA to waive, defer, grant exemptions from,
or  delay  the  implementation  of  any  provision  of  the ACA  that  would  impose  a  fiscal  or  regulatory  burden  on  states,  individuals,  healthcare  providers,  health  insurers,  or
manufacturers of pharmaceuticals or medical devices. Further, on October 12, 2017, former President Trump issued another executive order requiring the Secretaries of HHA
and the Departments of Labor and Treasury to consider proposing regulations or revising existing guidance to allow more employers to form association health plans that would
be  allowed  to  provide  coverage  across  state  lines,  increase  the  availability  of  short-term,  limited-duration  health  insurance  plans,  which  are  generally  not  subject  to  the
requirements of the ACA, and increase the availability and permitted use of health reimbursement arrangements. On October 13, 2017, the Department of Justice announced
that HHS was immediately stopping its cost sharing reduction payments to insurance companies based on the determination that those payments had not been appropriated by
Congress. Furthermore, on December 22, 2017, former President Trump signed the Tax Cuts and Jobs Act (the “TCJA”) into law that, in addition to overhauling the federal tax
system, also, effective as of January 1, 2019, repeals the penalties associated with the individual mandate. Congress or the President of the United States also could consider
subsequent legislation or executive action to replace, eliminate or reaffirm elements of the ACA. We will continue to evaluate the effect that the ACA and any future measures
to modify, repeal, replace or reaffirm the ACA have on our business.

33

 
 
 
 
 
 
 
 
 
 
 
Additionally, the Inflation Reduction Act of 2022 may impact existing Medicare programs that cover prescription drugs. In addition to other relevant provisions, the Inflation
Reduction Act of 2022 allow the Medicare program to directly negotiate the price of certain high-expenditure prescription drugs covered under Medicare Parts B and D, starting
in the year 2028 and 2026, respectively, by setting certain "maximum fair prices." Moreover, the Inflation Reduction Act of 2022 requires manufacturers to pay rebates to the
federal government if prices of certain drugs covered under the Medicare program rise faster than the rate of inflation. We will continue to evaluate the effects that the Inflation
Reduction Act of 2022 will have on our business.

We are not able to provide any assurance that the continued healthcare reform debate will not result in legislation, regulation, litigation or executive action by the President of
the United States that is adverse to our business.

Laws and other reform and cost containment measures that may be proposed and adopted in the future remain uncertain but may contain provisions that restrict our ability to
price our products and/or could result in additional reductions in Medicare and other healthcare funding, which could have a material adverse effect on our future customers
and, accordingly, our ability to generate revenue, attain profitability or commercialize our products.

Risks Related to Our Reliance on Third-Parties

We may seek to establish additional collaborations and, if we are not able to establish them on commercially reasonable terms, we may have to alter our development and
commercialization plans.

Our drug candidate development programs and the potential commercialization of our drug candidates will require substantial additional cash to fund expenses. For some of our
drug candidates, we may decide to collaborate with additional pharmaceutical and biotechnology companies for the development and potential commercialization of those drug
candidates.

We  face  significant  competition  in  seeking  appropriate  collaborators.  Whether  we  reach  a  definitive  agreement  for  any  additional  collaborations  will  depend,  among  other
things, upon our assessment of the collaborator’s resources and expertise, the terms and conditions of the proposed collaboration and the proposed collaborator’s evaluation of a
number of factors. Those factors may include the design or results of clinical trials, the likelihood of approval by FDA or similar regulatory authorities outside the U.S., the
potential market for the subject drug candidate, the costs and complexities of manufacturing and delivering such drug candidate to patients, the potential of competing drugs,
the existence of uncertainty with respect to our ownership of technology (which can exist if there is a challenge to such ownership without regard to the merits of the challenge)
and industry and market conditions generally. The collaborator may also consider alternative drug candidates or technologies for similar indications that may be available to
collaborate  on  and  whether  such  a  collaboration  could  be  more  attractive  than  the  one  with  us  for  our  drug  candidate.  The  terms  of  any  additional  collaborations  or  other
arrangements that we may establish may not be favorable to us.

We  may  also  be  restricted  under  existing  collaboration  agreements  from  entering  into  future  agreements  on  certain  terms  with  potential  collaborators.  Collaborations  are
complex  and  time-consuming  to  negotiate  and  document.  In  addition,  there  have  been  a  significant  number  of  recent  business  combinations  among  large  pharmaceutical
companies that have resulted in a reduced number of potential future collaborators.

We may not be able to negotiate additional collaborations on a timely basis on acceptable terms, or at all. If we are unable to do so, we may have to curtail the development of
the drug candidate for which we are seeking to collaborate, reduce or delay its development program or one or more of our other development programs, delay its potential
commercialization or reduce the scope of any sales or marketing activities or increase our expenditures and undertake development or commercialization activities at our own
expense. If we elect to increase our expenditures to fund development or commercialization activities on our own, we may need to obtain additional capital, which may not be
available to us on acceptable terms, or at all. If we do not have sufficient funds, we may not be able to further develop our drug candidates or bring them to market and generate
product revenue.

34

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
If conflicts arise between us and our collaborators or strategic partners, these parties may act in their self-interest, which may limit our ability to implement our strategies.

If  conflicts  arise  between  our  corporate  or  academic  collaborators  or  strategic  partners  and  us,  the  other  party  may  act  in  its  self-interest,  which  may  limit  our  ability  to
implement our strategies. Some of our academic collaborators and strategic partners are conducting multiple product development efforts within each area that is the subject of
the collaboration with us. Our collaborators or strategic partners, however, may develop, either alone or with others, products in related fields that are competitive with the
products  or  potential  products  that  are  the  subject  of  these  collaborations.  Competing  products,  either  developed  by  the  collaborators  or  strategic  partners  or  to  which  the
collaborators or strategic partners have rights, may result in the withdrawal of partner support for our drug candidates.

Some  of  our  collaborators  or  strategic  partners  could  also  become  our  competitors  in  the  future.  Our  collaborators  or  strategic  partners  could  develop  competing  products,
preclude us from entering into collaborations with their competitors, fail to obtain timely regulatory approvals, terminate their agreements with us prematurely, or fail to devote
sufficient  resources  to  the  development  and  commercialization  of  products. Any  of  these  developments  could  harm  our  product  development  efforts,  which  may  adversely
affect our business, results of operations and prospects.

We expect to rely on third parties to conduct, supervise and monitor our clinical studies, and if these third parties perform in an unsatisfactory manner, it may harm our
business.

We  rely  on  CROs,  clinical  investigators  and  clinical  study  sites  to  ensure  our  clinical  studies  are  conducted  properly  and  on  time. We  will  have  limited  influence  over  the
performance by CROs, clinical investigators and clinical study sites, and we will control only certain aspects of our CROs’ activities. Nevertheless, we will be responsible for
ensuring that each of our clinical studies is conducted in accordance with the applicable protocol, legal and regulatory requirements and scientific standards, and our reliance
on the CROs does not relieve us of our regulatory responsibilities. Furthermore, facilities used by these third party CROs, clinical investigators and clinical study sites may be
negatively  affected  by  catastrophic  events,  such  as  pandemics,  terrorist  attacks,  wars  or  other  armed  conflicts,  geopolitical  tensions,  such  as  the  ongoing  conflict  between
Russia  and  Ukraine  and  related  sanctions  and  other  economic  disruptions  or  concerns,  natural  disasters,  such  as  floods  or  fire,  or  such  facilities  could  face  manufacturing
issues, such as contamination or regulatory concerns following a regulatory inspection of such facility. In such instances, we may need to locate an appropriate replacement
third-party  facility  and  establish  a  contractual  relationship,  which  may  not  be  readily  available  or  on  acceptable  terms,  which  would  cause  additional  delay  and  increased
expense, including as a result of additional required FDA approvals, and may have a material adverse effect on our business.

We, our clinical investigators, and our CROs are required to comply with the FDA’s GCPs for conducting, recording and reporting the results of clinical trials to assure that the
data and reported results are credible and accurate and that the rights, integrity and confidentiality of clinical trial participants are protected. The FDA enforces these GCPs
through periodic inspections of study sponsors, principal investigators and clinical trial sites. If we, our CROs or the clinical investigators fail to comply with applicable GCPs,
the clinical data generated in our clinical trials may be deemed unreliable, and the FDA may require us to perform additional clinical trials before approving any marketing
applications. Upon inspection, the FDA may determine that our clinical trials did not comply with GCPs. In addition, our future clinical trials will require a sufficient number of
test subjects to evaluate the safety and efficacy of our drug candidates. Accordingly, if our CROs or clinical investigators fail to comply with these regulations or fail to recruit a
sufficient number of patients, we may be required to repeat such clinical trials, which would delay the regulatory approval process.

35

 
 
  
 
 
 
 
 
 
 
 
 
 
Our  CROs  are  not  our  employees,  and  we  are  therefore  unable  to  directly  monitor  whether  or  not  they  devote  sufficient  time  and  resources  to  our  clinical  and  nonclinical
programs, which must be conducted in accordance with GCPs and GLPs, respectively. These CROs may also have relationships with other commercial entities, including our
competitors,  for  whom  they  may  also  be  conducting  clinical  studies  or  other  drug  development  activities  that  could  harm  our  competitive  position.  If  our  CROs  do  not
successfully carry out their contractual duties or obligations, fail to meet expected deadlines or the quality or accuracy of the clinical data they obtain is compromised due to the
failure to adhere to our clinical protocols or regulatory requirements (or for any other reasons), our clinical studies may be extended, delayed or terminated, and we may not be
able  to  obtain  regulatory  approval  for,  or  successfully  commercialize,  our  pharmaceutical  products. As  a  result,  our  financial  results  and  the  commercial  prospects  for  our
pharmaceutical products would be harmed, our costs could increase and our ability to generate revenues could be delayed.

We may also rely on other third parties to store and distribute our products for any clinical studies that we may conduct. Any performance failure on the part of our distributors
could  delay  clinical  development  or  marketing  approval  of  our  pharmaceutical  products  or  commercialization  of  our  products,  if  approved,  producing  additional  losses  and
depriving us of potential product revenue.

Our collaborators or strategic partners may decide to adopt alternative technologies or may be unable to develop commercially viable products with our technology, which
would negatively impact our revenues and our strategy to develop these products.

Our collaborators or strategic partners may adopt alternative technologies, which could decrease the marketability of our products. Additionally, because our current or future
collaborators or strategic partners are likely to be working on more than one development project, they could choose to shift their resources to projects other than those they are
working  on  with  us.  If  they  do  so,  this  would  delay  our  ability  to  test  our  technology  and  would  delay  or  terminate  the  development  of  potential  products  based  on  our
platforms. Further, our collaborators and strategic partners may elect not to develop products arising out of our collaborative and strategic partnering arrangements or to devote
sufficient  resources  to  the  development,  manufacturing,  marketing  or  sale  of  these  products.  The  failure  to  develop  and  commercialize  a  drug  candidate  pursuant  to  our
agreements with our current or future collaborator would prevent us from receiving future milestone and royalty payments, which would negatively impact our revenues.

If we enter into one or more collaborations, we may be required to relinquish important rights to and control over the development of our drug candidates or otherwise be
subject to unfavorable terms.

Any future collaborations we enter into could subject us to a number of risks, including:

· We may not be able to control the amount and timing of resources that our collaborators devote to the development or commercialization of our drug candidates;
·

Collaborators may delay clinical trials, provide insufficient funding, terminate a clinical trial or abandon a drug candidate, repeat or conduct new clinical trials or
require a new version of a drug candidate for clinical testing;
Collaborators  may  not  pursue  further  development  and  commercialization  of  products  resulting  from  the  strategic  partnering  arrangement  or  may  elect  to
discontinue research and development programs;
Collaborators may not commit adequate resources to the marketing and distribution of our drug candidates, limiting our potential revenues from these products;
Disputes  may  arise  between  us  and  our  collaborators  that  result  in  the  delay  or  termination  of  the  research,  development  or  commercialization  of  our  drug
candidates or that result in costly litigation or arbitration that diverts management’s attention and consumes resources;
Collaborators may experience financial difficulties;
Collaborators may not properly maintain or defend our intellectual property rights or may use our proprietary information in a manner that could jeopardize or
invalidate our proprietary information or expose us to potential litigation;
Business combinations or significant changes in a collaborator’s business strategy may also adversely affect a collaborator’s willingness or ability to complete its
obligations under any arrangement;
Collaborators  could  decide  to  move  forward  with  a  competing  drug  candidate  developed  either  independently  or  in  collaboration  with  others,  including  our
competitors; and
Collaborators  could  terminate  the  arrangement  or  allow  it  to  expire,  which  would  delay  the  development  and  may  increase  the  cost  of  developing  our  drug
candidates.

·

·
·

·
·

·

·

·

36

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We have no manufacturing, sales, marketing or distribution capabilities, and we may have to invest a significant amount of resources to develop these capabilities.

We  have  no  internal  manufacturing  capabilities. As  a  result,  for  manufacturing  we  depend  on  third-party  manufacturers.  Our  strategy  is  based  on  leveraging  the  ability  of
collaboration partners to develop and manufacture our products for commercialization in the pharmaceutical marketplace, and we will be dependent on collaborations with drug
development  and  manufacturing  capabilities.  If  we  are  not  able  to  maintain  existing  collaborative  arrangements  or  establish  new  arrangements  on  commercially  acceptable
terms, we would be required to undertake product manufacturing and development activities at our own expense. This would increase our capital requirements or require us to
limit  the  scope  of  our  development  activities.  Moreover,  we  have  limited  or  no  experience  in  conducting  full-scale  bioequivalence  or  other  clinical  studies,  preparing  and
submitting regulatory applications and distributing and marketing pharmaceutical products. As such, we are reliant on contract parties for such efforts. We may not be able to
enter into collaborations or hire consultants or external service providers to assist us in sales, marketing and distribution functions on acceptable financial terms, or at all.

If  any  of  our  developmental  collaborators  breach  or  terminate  their  agreements  with  us  or  otherwise  fail  to  conduct  their  collaborative  activities  in  a  timely  manner,  the
preclinical and/or clinical development and/or commercialization of our pharmaceutical products will be delayed and we would be required to devote additional resources to
product development and commercialization or terminate certain development programs. Also, a license relationship may be terminated at the discretion of our collaborator, or
at the end of contract terms, and in some cases with only limited notice to us. The termination of the collaborative arrangement could have a material adverse effect on our
business, financial condition and results of operations. There also can be no assurance that disputes will not arise with respect to the ownership of rights to any technology
developed with third parties. These and other possible disagreements with collaborators could lead to delays in the development or commercialization of our pharmaceutical
products or could result in litigation or arbitration, which could be time-consuming and expensive and could have a material adverse effect on our business, financial condition
and results of operations. Even if we decide to perform clinical trials, sales, marketing and distribution functions ourselves, we could face a number of additional related risks,
including:

· We may not be able to attract clinical investigators and build effective clinical trials or a solid marketing department or sales force;
·

The  cost  of  establishing  an  internal  clinical  trials  program,  marketing  department  or  sales  force  may  exceed  our  available  financial  resources  and  the  revenue
generated by any of our current product candidates, if approved, or any other pharmaceutical products that we may develop, in-license or acquire; and
Our direct sales and marketing efforts may not be successful.

·

Any failure to perform such activities could have a material adverse effect on our business, financial condition and results of our operations.

Our reliance on third parties requires us to share our trade secrets, which increases the possibility that a competitor will discover them or that our trade secrets will be
misappropriated or disclosed.

Because  we  rely  on  third  parties  to  manufacture  our  pharmaceutical  products,  and  because  we  collaborate  with  various  organizations  and  academic  institutions  on  the
development  of  our  pharmaceutical  products,  we  must,  at  times,  share  trade  secrets  with  them.  We  seek  to  protect  our  proprietary  technology  in  part  by  entering  into
confidentiality  agreements  and,  if  applicable,  material  transfer  agreements,  collaborative  research  agreements,  consulting  agreements  or  other  similar  agreements  with  our
collaborators, advisors, employees and consultants prior to beginning research or disclosing proprietary information. These agreements typically limit the rights of the third
parties to use or disclose our confidential information, such as trade secrets. The need to share trade secrets and other confidential information when working with third parties
increases the risk that such trade secrets become known by our competitors, are inadvertently incorporated into the technology of others or are disclosed or used in violation of
these agreements. Given that our proprietary position is based, in part, on our know-how and trade secrets, a competitor’s discovery of our trade secrets or other unauthorized
use or disclosure would impair our competitive position and may have a material adverse effect on our business.

In addition, these agreements typically restrict the ability of our collaborators, advisors, employees and consultants to publish data potentially relating to our trade secrets. Our
academic collaborators typically have rights to publish data, provided that we are notified in advance and may delay publication for a specified time in order to secure our
intellectual property rights arising from the collaboration. In other cases, publication rights are controlled exclusively by us, although in some cases we may share these rights
with other parties. We may also conduct joint research and development programs that may require us to share trade secrets under the terms of our research and development
partnerships  or  similar  agreements.  Our  competitors  may  discover  our  trade  secrets,  either  through  breach  of  these  agreements,  independent  development  or  publication  of
information including our trade secrets in cases where we do not have proprietary or otherwise protected rights at the time of publication. A competitor’s discovery of our trade
secrets would impair our competitive position and have an adverse impact on our business.

37

 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
Our  contract  manufacturers  are  subject  to  significant  regulation  with  respect  to  manufacturing  our  products.  The  manufacturing  facilities  on  which  we  rely  may  not
continue to meet regulatory requirements and have limited capacity.

We currently have relationships with a limited number of suppliers for the manufacturing of our pharmaceutical products. Each supplier may require licenses to manufacture
components if such processes are not owned by the supplier or in the public domain, and we may be unable to transfer or sublicense the intellectual property rights we may
have with respect to such activities.

All  entities  involved  in  the  preparation  of  pharmaceutical  products  for  clinical  studies  or  commercial  sale,  including  our  existing  contract  manufacturers  for  our  drug
candidates, are subject to extensive regulation. Components of a finished pharmaceutical product approved for commercial sale or used in late-stage clinical studies must be
manufactured in accordance with cGMP. These regulations govern manufacturing processes and procedures (including record keeping) and the implementation and operation of
quality systems to control and assure the quality of investigational products and products approved for sale. Poor control of production processes can lead to the introduction of
adventitious agents or other contaminants or to inadvertent changes in the properties or stability of our pharmaceutical products that may not be detectable in final product
testing. Our contract manufacturers must supply all necessary documentation in support of an NDA or BLA on a timely basis and must adhere to the FDA’s GLP and cGMP
regulations  enforced  by  the  FDA  through  its  facilities  inspection  program. The  facilities  and  quality  systems  of  some  or  all  of  our  third-party  contractors  must  pass  a  pre-
approval inspection for compliance with the applicable regulations as a condition of regulatory approval of our pharmaceutical products or any of our other potential products.
In  addition,  the  regulatory  authorities  may,  at  any  time,  audit  or  inspect  a  manufacturing  facility  involved  with  the  preparation  of  our  pharmaceutical  products  or  our  other
potential products or the associated quality systems for compliance with the regulations applicable to the activities being conducted. If these facilities do not pass a pre-approval
plant inspection, FDA approval of the products will not be granted.

The regulatory authorities also may, at any time following approval of a product for sale, audit the manufacturing facilities of our third-party contractors. If any such inspection
or  audit  identifies  a  failure  to  comply  with  applicable  regulations  or  if  a  violation  of  our  product  specifications  or  applicable  regulations  occurs  independent  of  such  an
inspection or audit, we, or the relevant regulatory authority, may require remedial measures that may be costly and/or time-consuming for us or a third party to implement and
that  may  include  the  temporary  or  permanent  suspension  of  a  clinical  study  or  commercial  sales  or  the  temporary  or  permanent  closure  of  a  facility. Any  such  remedial
measures imposed upon third parties with whom we contract could materially harm our business.

If our third-party manufacturers fail to maintain regulatory compliance, the FDA can impose regulatory sanctions including, among other things, refusal to approve a pending
application for a drug candidate or revocation of a pre-existing approval. As a result, our business, financial condition and results of operations may be materially harmed.

Additionally, if supply from one approved manufacturer is interrupted, there could be a significant disruption in commercial supply. The number of manufacturers with the
necessary manufacturing capabilities is limited. In addition, an alternative manufacturer would need to be qualified through an NDA or BLA supplement which could result in
further  delay.  The  regulatory  agencies  may  also  require  additional  studies  if  a  new  manufacturer  is  relied  upon  for  commercial  production.  Switching  manufacturers  may
involve substantial costs and is likely to result in a delay in our desired clinical and commercial timelines, which could materially harm our business and results of operations.

These factors could cause the delay of clinical studies, regulatory submissions, required approvals or commercialization of our pharmaceutical products and/or cause us to incur
higher costs and prevent us from commercializing our products successfully. Furthermore, if our suppliers fail to meet contractual requirements, and we are unable to secure
one or more replacement suppliers capable of production at a substantially equivalent cost, our clinical studies may be delayed or we could lose potential revenue, which could
materially harm our business and results of operations.

38

 
 
 
 
  
 
 
 
 
 
 
 
 
 
Risks Related to Our Intellectual Property

If we fail to adequately protect or enforce our intellectual property rights, we may be unable to operate effectively.

Our  success  and  ability  to  compete  are  substantially  dependent  on  our  patents,  proprietary  formulations  and  trademarks.  There  can  be  no  assurance  that  our  patents  and
associated trademarks and licenses will not be challenged and subsequently invalidated and/or canceled. The invalidation or cancellation of any one or all of the patents or
trademarks would significantly damage our commercial prospects. Further, we may find it necessary to legally challenge parties infringing our patents or trademarks or licensed
trademarks to enforce our rights thereto. There can be no assurance that any of the patents would ultimately be held valid or that efforts to defend any of the patents, trade
secrets, know-how or other IP rights would be successful.

The patent positions of pharmaceutical and biotechnology companies, such as ours, are uncertain and involve complex legal and factual issues. We own numerous U.S. and
foreign patents and a number of pending patent applications that cover various aspects of our drug candidates and technologies. There can be no assurance that patents that have
been  issued  will  be  held  valid  and  enforceable  in  a  court  of  law.  Even  for  patents  that  are  held  valid  and  enforceable,  the  legal  process  associated  with  obtaining  such  a
judgment  is  time-consuming  and  costly.  Additionally,  issued  patents  can  be  subject  to  opposition  or  other  proceedings  that  can  result  in  the  revocation  of  the  patent  or
maintenance of the patent in amended form (and potentially in a form that renders the patent without commercially relevant and/or broad coverage). Further, our competitors
may be able to circumvent and otherwise design around our patents. Even if a patent is issued and enforceable because development and commercialization of pharmaceutical
products  can  be  subject  to  substantial  delays,  patents  may  expire  early  and  provide  only  a  short  period  of  protection,  if  any,  following  the  commercialization  of  a  product
encompassed by our patents. We may have to participate in interference proceedings declared by the USPTO, which could result in a loss of the patent and/or substantial cost to
us.

We have filed patent applications and plan to file additional patent applications covering various aspects of our drug candidates and technologies. There can be no assurance
that the patent applications for which we apply would actually be issued as patents, or do so with commercially relevant and/or broad coverage. The coverage claimed in a
patent application can be significantly reduced before the patent is issued. The scope of our claim coverage can be critical to our ability to enter into licensing transactions with
third parties and our right to receive royalties from our collaboration partnerships. Since publication of discoveries in scientific or patent literature often lags behind the date of
such discoveries, we cannot be certain that we were the first inventor of inventions covered by our patents or patent applications. In addition, there is no guarantee that we will
be the first to file a patent application directed to an invention.

An adverse outcome in any judicial proceeding involving IP, including patents, could subject us to significant liabilities to third parties, require disputed rights to be licensed
from or to third parties or require us to cease using the technology in dispute. In those instances where we seek an IP license from another, we may not be able to obtain the
license on a commercially reasonable basis, if at all, thereby raising concerns on our ability to freely commercialize our technologies and/or products. It is also possible that we
or our licensors or licensees will fail to identify patentable aspects of inventions made in the course of development and commercialization activities before it is too late to
obtain patent protection on them. Moreover, in some circumstances, we may not have the right to control the preparation, filing and prosecution of patent applications (or to
maintain the patents) covering technology that we license from or license to third parties. We are reliant on our licensors or licensees. Therefore, these patents and applications
may not be prosecuted and enforced in a manner consistent with the best interests of our business. If our current or future licensors or licensees fail to establish, maintain or
protect such patents and other intellectual property rights, such rights may be reduced or eliminated. If our licensors or licensees are not fully cooperative or disagree with us as
to the prosecution, maintenance or enforcement of any patent rights, such patent rights could be compromised.

Failure to adequately protect or enforce our intellectual property rights could have a material adverse impact on our business, results of operations and prospects.

39

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

If we or one of our licensing partners initiated legal proceedings against a third-party to enforce a patent covering one of our drug candidates, the defendant could counterclaim
that  the  patent  covering  our  drug  candidate  is  invalid  and/or  unenforceable.  In  patent  litigation  in  the  United  States,  defendant  counterclaims  alleging  invalidity  and/or
unenforceability  are  commonplace.  Grounds  for  a  validity  challenge  could  be  an  alleged  failure  to  meet  any  of  several  statutory  requirements,  including  lack  of  novelty,
obviousness  or  non-enablement.  Grounds  for  an  unenforceability  assertion  could  be  an  allegation  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  equivalent  proceedings  in  foreign  jurisdictions  (e.g.,
opposition proceedings). Such proceedings could result in revocation or amendment to our patents in such a way that they no longer cover our drug candidates. The outcome
following  legal  assertions  of  invalidity  and  unenforceability  is  unpredictable.  With  respect  to  the  validity  question,  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  and/or
unenforceability, we would lose at least part, and perhaps all, of the patent protection on our drug candidates. Such a loss of patent protection would have a material adverse
impact on our business.

We may not be able to protect our intellectual property rights throughout the world.

Filing,  prosecuting  and  defending  patents  on  drug  candidates  in  all  countries  throughout  the  world  would  be  prohibitively  expensive,  and  our  intellectual  property  rights  in
some countries outside the United States can be less extensive than those in the United States. In addition, the laws of some foreign countries do not protect intellectual property
rights to the same extent as federal and state laws in the United States. Consequently, we may not be able to prevent third parties from practicing our inventions in all countries
outside  the  United  States  or  from  selling  or  importing  products  made  using  our  inventions  in  and  into  the  United  States  or  other  jurisdictions.  Competitors  may  use  our
inventions  in  jurisdictions  where  we  have  not  obtained  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.

Many companies have encountered significant problems in protecting and defending intellectual property rights in foreign jurisdictions. The legal systems of certain countries,
particularly  certain  developing  countries,  do  not  favor  the  enforcement  of  patents,  trade  secrets  and  other  intellectual  property  protection,  particularly  those  relating  to
biotechnology products, which could make it difficult for us to stop the infringement of our patents or marketing of competing products in violation of our proprietary rights
generally. 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. 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.

Failure to adequately protect our intellectual property rights throughout the world could have a material adverse impact on our business, results of operations and prospects.

If we infringe on the intellectual property rights of others, our business and profitability may be adversely affected.

Our commercial success will also depend, in part, on us and our collaborative partners not infringing on the patents or proprietary rights of others. There can be no assurance
that the technologies and products used or developed by our collaborative partners and marketed and sold by us will not infringe such rights. If such infringement occurs and
neither we nor our collaborative partner is able to obtain a license from the relevant third party, we will not be able to continue the development, manufacture, use or sale of any
such infringing technology or product. There can be no assurance that necessary licenses to third-party technology will be available at all, or on commercially reasonable terms.
In some cases, litigation or other proceedings may be necessary to defend against or assert claims of infringement or to determine the scope and validity of the proprietary
rights  of  third  parties. Any  potential  litigation  could  result  in  substantial  costs  to,  and  diversion  of,  our  resources  and  could  have  a  material  and  adverse  impact  on  us. An
adverse  outcome  in  any  such  litigation  or  proceeding  could  subject  us  to  significant  liabilities,  require  us  to  cease  using  the  subject  technology  or  require  us  to  license  the
subject technology from the third party, all of which could have a material adverse effect on our business.

40

 
 
 
 
 
 
 
  
 
 
 
 
 
 
If we fail to comply with our obligations in the agreements under which we license intellectual property rights from third parties or otherwise experience disruptions to our
business relationships with our licensors, we could lose license rights that are important to our business.

We are a party to a number of intellectual property license agreements that are important to our business, and we expect to enter into additional license agreements in the future.
Our existing license agreements impose, and we expect that future license agreements will impose, various diligence, milestone payment, royalty and other obligations on us. If
we fail to comply with our obligations under these agreements, or we are subject to a bankruptcy, the licensor may have the right to terminate the license, in which event we
would not be able to market products covered by the license.

We may need to obtain licenses from third parties to advance our research, and we have done so from time to time. We may fail to obtain any of these licenses at a reasonable
cost or on reasonable terms, if at all. In that event, we may be required to expend significant time and resources to develop or license replacement technology. If we are unable
to do so, we may be unable to develop the affected drug candidates, which could harm our business significantly. We cannot provide any assurances that third-party patents do
not exist which might be enforced against our current drug candidates or future products, resulting in either an injunction prohibiting the sales, or, with respect to the sales, an
obligation on our part to pay royalties and/or other forms of compensation to third parties.

In many cases, patent prosecution of our licensed technology is controlled solely by the licensor. If our licensors fail to obtain and maintain patent or other protection for the
proprietary intellectual property we license from them, we could lose our rights to the intellectual property or our exclusivity with respect to those rights, and our competitors
could market competing products using the intellectual property. In certain cases, we control the prosecution of patents resulting from licensed technology. In the event we
breach any of our obligations related to such prosecution, we may incur significant liability to our licensing partners. Licensing of intellectual property is of critical importance
to  our  business  and  involves  complex  legal,  business  and  scientific  issues  and  is  complicated  by  the  rapid  pace  of  scientific  discovery  in  our  industry.  Disputes  may  arise
regarding intellectual property subject to a licensing agreement, including:

·
·
·
·
·
·

The scope of rights granted under the license agreement and other interpretation-related issues;
The extent to which our technology and processes infringe on intellectual property of the licensor that is not subject to the licensing agreement;
The sublicensing of patent and other rights under our collaborative development relationships;
Our diligence obligations under the license agreement and what activities satisfy those diligence obligations;
The ownership of inventions and know-how resulting from the joint creation or use of intellectual property by our licensors and us and our partners; and
The priority of invention of patented technology.

If disputes over intellectual property that we have licensed prevent or impair our ability to maintain our current licensing arrangements on acceptable terms, we may be unable
to successfully develop and commercialize the affected drug candidates, which could have a material adverse effect on our business.

We may be subject to claims that our employees, consultants or independent contractors have wrongfully used or disclosed confidential information of third parties or that
our employees have wrongfully used or disclosed alleged trade secrets of their former employers.

We employ individuals who were previously employed at universities or other biotechnology or pharmaceutical companies, including our competitors or potential competitors.
We may be subject to claims that we or our employees, consultants or independent contractors have inadvertently or otherwise used or disclosed intellectual property, including
trade secrets or other proprietary information, of any of our employee’s former employers 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, which could adversely impact our
business. 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.

41

 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We may be subject to claims challenging the inventorship or ownership of our patents and other intellectual property.

We may also be subject to claims that former employees, collaborators or other third parties have an ownership interest in our patents or other intellectual property. We may
have in the future ownership disputes arising, for example, from conflicting obligations of consultants or others who are involved in developing our drug candidates. Litigation
may  be  necessary  to  defend  against  these  and  other  claims  challenging  inventorship  or  ownership.  If  we  fail  in  defending  any  such  claims,  in  addition  to  paying  monetary
damages,  we  may  lose  valuable  intellectual  property  rights,  such  as  exclusive  ownership  of,  or  right  to  use,  valuable  intellectual  property.  Such  an  outcome  could  have  a
material  adverse  effect  on  our  business.  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.

Our inability to protect our confidential information and trade secrets would harm our business and competitive position.

In  addition  to  seeking  patents  for  some  of  our  technology  and  products,  we  also  rely  on  trade  secrets,  including  unpatented  know-how,  technology  and  other  proprietary
information, to maintain our competitive position. We seek to protect these trade secrets, in part, by entering into non-disclosure and confidentiality agreements with parties
who have access to them, such as our employees, corporate collaborators, outside scientific collaborators, contract manufacturers, consultants, advisors and other third parties.
We also enter into confidentiality and invention or patent assignment agreements with our employees and consultants. Any of these parties may breach the agreements and
disclose our proprietary information, including our trade secrets, and we may not be able to obtain adequate remedies for such breaches. Enforcing a claim that a party illegally
disclosed or misappropriated a trade secret is difficult, expensive and time-consuming, and the outcome is unpredictable. In addition, some courts both within and outside the
United States may be less willing or unwilling to protect trade secrets. If a competitor lawfully obtained or independently developed any of our trade secrets, we would have no
right to prevent such competitor from using that technology or information to compete with us, which could harm our competitive position and our business.

We may be involved in lawsuits to protect or enforce our patents or the patents of our licensors, which could be expensive, time-consuming and unsuccessful.

Competitors may infringe our patents or the patents of our licensors. To counter infringement or unauthorized use, we may be required to file infringement claims, which can be
expensive and time-consuming. In addition, in an infringement proceeding, a court may decide that a patent of ours or our licensors is not valid, is unenforceable and/or is not
infringed, or may refuse to stop the other party from using the technology at issue on the grounds that our patents do not cover the technology in question. An adverse result in
any litigation or defense proceedings could put one or more of our patents at risk of being invalidated or interpreted narrowly and could put our patent applications at risk of not
issuing.

Interference proceedings provoked by third parties or brought by us may be necessary to determine the priority of inventions with respect to our patents or patent applications
or those of our licensors. An unfavorable outcome could require us to cease using the related technology or to attempt to license rights to it from the prevailing party. Our
business could be harmed if the prevailing party does not offer us a license on commercially reasonable terms. Our defense of litigation or interference proceedings may fail
and,  even  if  successful,  may  result  in  substantial  costs  and  distract  our  management  and  other  employees.  We  may  not  be  able  to  prevent,  alone  or  with  our  licensors,
misappropriation of our intellectual property rights, particularly in countries where the laws may not protect those rights as fully as in the United States.

Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our confidential information
could be compromised by disclosure during this type of litigation. There could also be public announcements of the results of hearings, motions or other interim proceedings or
developments. If securities analysts or investors perceive these results to be negative, it could have a material adverse effect on the price of our common stock.

42

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Changes in U.S. patent law could diminish the value of patents in general, thereby impairing our ability to protect our products.

As is the case with other biopharmaceutical companies, our success is heavily dependent on intellectual property, particularly patents. Obtaining and enforcing patents in the
biotechnology industry involve both technological and legal complexity and is, therefore, costly, time-consuming and inherently uncertain. In addition, the United States has
enacted  and  is  expected  to  continue  to  implement  wide-ranging  patent  reform  legislation.  Further,  certain  U.S.  Supreme  Court  rulings  have  narrowed  the  scope  of  patent
protection available in certain circumstances and/or weakened the rights of patent owners in certain situations. In addition to increasing uncertainty with regard to our ability to
obtain  patents  in  the  future,  this  combination  of  events  has  created  uncertainty  with  respect  to  the  value  of  patents,  once  obtained.  Depending  on  decisions  by  the  U.S.
Congress,  the  federal  courts  and  the  USPTO,  the  laws  and  regulations  governing  patents  could  change  in  unpredictable  ways  that  would  weaken  our  ability  to  obtain  new
patents or to enforce our existing patents and patents that we might obtain in the future.

Patent reform legislation could increase the uncertainties and costs surrounding the prosecution of our and our licensors’ patent applications and the enforcement or defense of
our or our licensors’ issued patents. Provisions of the Leahy-Smith America Invents Act (the “Leahy-Smith Act”), adopted in September 2011, made a number of significant
changes  to  U.S.  patent  law,  the  effects  of  which  are  still  unfolding.  The  Leahy-Smith  Act  and  its  implementation,  in  addition  to  any  new  regulation,  could  increase  the
uncertainties and costs surrounding the prosecution of our patent applications and the enforcement or defense of our issued patents, all of which could have a material adverse
effect on our business and financial condition.

Obtaining and maintaining our patent protection depends on compliance with various procedural, document submission, fee payment and other requirements imposed by
governmental patent agencies, and our patent protection could be reduced or eliminated for non-compliance with these requirements.

Periodic maintenance fees, renewal fees, annuity fees and various other governmental fees on patents and/or applications will be due to be paid to the USPTO and various
governmental patent agencies outside of the United States in several stages over the lifetime of the patents and/or applications. The USPTO and various non-U.S. governmental
patent agencies require compliance with a number of procedural, documentary, fee payment and other similar provisions during the patent application process. Non-compliance
may result in abandonment or lapse of the patent or patent application, resulting in partial or complete loss of patent rights in the relevant jurisdiction. In such an event, our
competitors might be able to enter the market, and this circumstance would have a material adverse effect on our business.

Risks Related to Our Business Operations

Market  conditions  and  changing  circumstances,  some  of  which  may  be  beyond  our  control,  could  impair  our  ability  to  access  our  existing  cash,  cash  equivalents  and
investments and to timely pay collaborators and others.

Market  conditions  and  changing  circumstances,  some  of  which  may  be  beyond  our  control,  could  impair  our  ability  to  access  our  existing  cash,  cash  equivalents  and
investments and to timely pay key vendors and others. If banks and financial institutions with whom we have banking relationships enter receivership or become insolvent in
the  future,  we  may  be  unable  to  access,  and  we  may  lose,  some  or  all  of  our  existing  cash,  cash  equivalents  and  investments  to  the  extent  those  funds  are  not  insured  or
otherwise protected by the FDIC. In addition, in such circumstances we might not be able to make timely payments to our collaborators or others. The Company maintains its
primary banking relationship with one large financial institution and all cash on deposit is federally insured. The Company has not experienced any losses on its accounts, and
does not believe it is exposed to any unusual credit risk beyond the normal credit risk currently associated with commercial banking relationships. However, any delay in our
ability to access our cash, cash equivalents and investments or to timely pay our collaborators and others could have a material adverse effect on our operations and cause us to
need to seek additional capital sooner than planned.

43

 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
Our  future  success  depends  on  our  ability  to  retain  principal  members  of  our  executive  team,  consultants  and  advisors  and  to  attract,  retain  and  motivate  qualified
personnel.

We  are  highly  dependent  on  principal  members  of  our  executive  team,  the  loss  of  whose  services  may  adversely  impact  the  achievement  of  our  objectives.  Recruiting  and
retaining other qualified employees, consultants and advisors for our business, including scientific and technical personnel, will also be critical to our success. Competition for
skilled personnel is intense and the turnover rate can be high. We may not be able to attract and retain personnel on acceptable terms given the competition among numerous
pharmaceutical  and  biotechnology  companies  for  individuals  with  similar  skill  sets.  In  addition,  failure  to  succeed  in  preclinical  or  clinical  studies  may  make  it  more
challenging  to  recruit  and  retain  qualified  personnel. The  inability  to  recruit  or  loss  of  the  services  of  any  executive,  consultant  or  advisor  may  impede  the  progress  of  our
research and development objectives.

We will need to expand our organization and we may experience difficulties in managing this growth, which could disrupt our operations.

As of December 31, 2023, we had four full-time employees. As we mature, we may need to expand our full-time employee base and to hire more consultants and contractors.
Our management may need to divert a disproportionate amount of its attention away from our day-to-day activities and devote a substantial amount of time to managing these
growth activities. We may not be able to effectively manage the expansion of our operations, which may result in weaknesses in our infrastructure, operational mistakes, loss of
business opportunities, loss of employees and reduced productivity among remaining employees, all of which may have a material adverse effect on our business, results of
operations and prospects. Any future growth could require significant capital expenditures and may divert financial resources from other projects, such as the development of
additional drug candidates. If our management is unable to effectively manage our growth, our expenses may increase more than expected, our ability to generate and/or grow
revenues could be reduced and we may not be able to implement our business strategy. Our future financial performance and our ability to commercialize drug candidates and
compete effectively will depend, in part, on our ability to effectively manage any future growth.

We  are  a  party  to  collaboration  agreements  and  other  significant  agreements  which  contain  complex  commercial  terms  that  could  result  in  disputes,  litigation  or
indemnification liability that could adversely affect our business, results of operations and financial condition.

We  currently  derive,  and  expect  to  derive  in  the  foreseeable  future,  all  or  much  of  our  revenue  from  collaboration  agreements  with  biotechnology  and  pharmaceutical
companies. These collaboration agreements contain complex commercial terms, including:

·

·

·

·
·

·

Clinical development and commercialization obligations that are based on certain commercial reasonableness performance standards that can often be difficult to
enforce if disputes arise as to adequacy of our partner’s performance;
Research and development performance and reimbursement obligations for our personnel and other resources allocated to partnered drug candidate development
programs;
Clinical and commercial manufacturing agreements, some of which are priced on an actual cost basis for products supplied by us to our partners with complicated
cost allocation formulas and methodologies;
Intellectual property ownership allocation between us and our partners for improvements and new inventions developed during the course of the collaboration;
Royalties on drug sales based on a number of complex variables, including net sales calculations, geography, scope of patent claim coverage, patent life, generic
competitors, bundled pricing and other factors; and
Indemnity obligations for intellectual property infringement, product liability and certain other claims.

From time to time, we may have informal dispute resolution discussions with third parties regarding the appropriate interpretation of the complex commercial terms contained
in our agreements. One or more disputes may arise or escalate in the future regarding our collaboration agreements, transaction documents or third-party license agreements
that may ultimately result in costly litigation and unfavorable interpretation of contract terms, which would have a material adverse effect on our business, financial condition
and results of operations.

44

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We operate in an extremely competitive environment and there can be no assurances that competing technologies would not harm our business development.

We are engaged in a rapidly-evolving field. Competition from numerous pharmaceutical companies is intense and expected to increase. The large and rapidly-growing market
for oncology treatments is likely to attract new entrants. Numerous biotechnology and pharmaceutical companies are focused on developing cancer treatments and immuno-
oncology technologies. Many, if not all, of these companies have greater financial and other resources and development capabilities than we do. Many of our competitors also
have  greater  collective  experience  in  undertaking  preclinical  and  clinical  testing  of  products,  obtaining  regulatory  approvals  and  manufacturing  and  marketing  prescription
pharmaceutical products. There can be no assurance that our under-development drug candidates will be more effective or achieve greater market acceptance than competitive
products or that our competitors will not succeed in developing products and technologies that are more effective than those being developed by us or that would render our
products and technologies less competitive or obsolete. Additionally, there can be no assurance that the development by others of new or improved drugs will not make our
pharmaceutical products superfluous or obsolete.

Potential new accounting standards or legislative actions may adversely impact our future financial position or results of operations.

Future  changes  in  financial  accounting  standards  may  cause  adverse,  unexpected  fluctuations  in  the  timing  of  the  recognition  of  revenues  or  expenses,  and  may  affect  our
financial position or results of operations. New standards may occur in the future and may cause us to be required to make changes in our accounting policies. Compliance with
changing  regulation  of  corporate  governance  and  public  disclosure  may  result  in  additional  expenses.  Changing  laws,  regulations  and  standards  relating  to  corporate
governance and public disclosure, including the Sarbanes-Oxley Act of 2002 (or the Sarbanes-Oxley Act), new SEC regulations, Public Company Accounting Oversight Board
(or PCAOB) standards and Nasdaq rules, are creating uncertainty for companies such as ours. Insurance, accounting and auditing costs are high as a result of this uncertainty
and other factors.

We  have  limited  capital  resources  and  currently  have  only  one  full-time  employee  in  our  finance  department.  We  rely  on  outside  consultants  to  supplement  our  internal
expertise and are committed to maintaining high standards of corporate governance and public disclosure. As a result, we intend to invest all reasonably necessary resources to
comply  with  evolving  standards,  and  this  investment  may  result  in  increased  general  and  administrative  expenses  and  a  diversion  of  management  time  and  attention  from
revenue-generating activities to compliance activities.

Risks Related to Our Common Stock

We may not continue to meet the continued listing requirements of Nasdaq, which could result in a delisting of our common shares.

Our common shares are listed on the Nasdaq. While we are currently in compliance, we have in the past been, and may in the future be, unable to comply with certain listing
standards that we are required to meet to maintain the listing of our common shares on the Nasdaq. For instance, on June 3, 2022, we received written notification from the
Listing Qualifications Department of Nasdaq notifying us that the closing bid price for our common stock had been below $1.00 for 30 consecutive business days and that we,
therefore, were not in compliance with the Nasdaq minimum bid price requirement. After approval from the Company’s Board of Directors, on May 15, 2023, we effected a
reduction, on a 1-for-10 basis, in our authorized common stock, par value $0.001, along with a corresponding and proportional decrease in the number of shares issued and
outstanding(the  “Reverse  Stock  Split”).  On  May  30,  2023,  we  received  a  letter  from  Nasdaq  notifying  us  that  we  had  regained  compliance  with  the  minimum  bid  price
requirement as a result of the closing bid price of our common stock being at $1.00 per share or greater for the 10 consecutive business days from May 15, 2023 through May
26, 2023 and that this matter was closed.

The primary intent for the Reverse Stock Split was that the anticipated increase in the price of our common shares immediately following and resulting from a reverse stock
split due to the reduction in the number of issued and outstanding common shares would help us meet the minimum bid price requirement. It cannot be assured that the Reverse
Stock Split will result in any sustained proportionate increase in the market price of our common shares, which is dependent upon many factors, including the business and
financial  performance  of  the  company,  general  market  conditions,  and  prospects  for  future  success,  which  are  unrelated  to  the  number  of  shares  of  our  common  shares
outstanding. It is not uncommon for the market price of a company’s common shares to decline in the period following a reverse stock split. Thus, while we have regained
compliance with the continued listing requirements for Nasdaq, it cannot be assured that we will continue to do so. If Nasdaq delists our common shares from trading on its
exchange for failure to meet the listing standards, an investor would likely find it significantly more difficult to dispose of or obtain our shares, and our ability raise future
capital through the sale of our shares could be severely limited. Delisting could also have other negative results, including the potential loss of confidence by employees, the
loss of institutional investor interest and fewer business development opportunities.

45

 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
The Reverse Stock Split may decrease the liquidity of our common shares.

The liquidity of our common stock may be adversely affected by the reduced number of shares outstanding after the Reverse Stock Split. In addition, the Reverse Stock Split
may have increased the number of shareholders who own odd lots (less than 100 shares) of our common shares, creating the potential for such shareholders to experience an
increase in the cost of selling their shares and greater difficulty effecting such sales.

The market price of our securities may be highly volatile, and you may not be able to sell our securities.

Companies trading in the stock market in general have experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating
performance of these companies. Broad market and industry factors may negatively affect the market price of our securities, regardless of our actual operating performance.

The market price of our securities may be volatile. Our securities could be subject to wide fluctuations in price in response to a variety of factors, including the following:

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Failure to realize the anticipated potential of the DNase or PolyXen technologies;
Adverse results, delays, or holds in pre-clinical or clinical studies;
Inability to obtain additional funding;
Any delay in filing an IND or BLA for any of our drug candidates and any adverse development or perceived adverse development with respect to the FDA’s
review of that IND or BLA;
Failure to develop successfully our drug candidates;
Failure to maintain our existing strategic collaborations or enter into new collaborations;
Failure by us or our licensors and strategic collaboration partners to prosecute, maintain or enforce our intellectual property rights;
Changes in laws or regulations applicable to future products;
Inability to obtain adequate product supply for our drug candidates or the inability to do so at acceptable prices;
Adverse regulatory decisions;
Introduction of new products, services or technologies by our competitors;
Failure to meet or exceed financial projections we may provide to the public;
Failure to meet or exceed the financial projections of the investment community;
The perception of the pharmaceutical industry by the public, legislatures, regulators and the investment community;
Announcements  of  significant  acquisitions,  strategic  partnerships,  joint  ventures  or  capital  commitments  by  us,  our  strategic  collaboration  partner  or  our
competitors;
Disputes or other developments relating to proprietary rights, including patents, litigation matters and our ability to obtain patent protection for our technologies;
Additions or departures of key scientific or management personnel;
Significant lawsuits, including patent or stockholder litigation;
Changes in the market valuations of similar companies;
Sales of our securities by us or our stockholders in the future;
Adverse economic conditions, including potential adverse effects of public health issues, such as the coronavirus outbreak, and geopolitical events, such as the
Russian invasion of Ukraine, and related sanctions and other economic disruptions or concerns, on economic activity generally; and
Trading volume of our securities.

46

 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Our preferred stockholders have rights, preferences and privileges that are not held by, and are preferential to, the rights of our common stockholders, which could result
in the interests of our preferred stockholders differing from those of our common stockholders.

The holders of our preferred stock have the right to receive a liquidation preference entitling them to be paid out of our assets available for distribution to stockholders before
any  payment  may  be  made  to  holders  of  any  common  stock  or  any  series  of  preferred  stock  ranked  junior  to  such  class  of  preferred  stock.  The  existence  of  a  liquidation
preference may reduce the value of our common stock, make it harder for us to sell shares of common stock in offerings in the future or prevent or delay a change of control.
Additionally, each share of Series B Preferred Stock are convertible into shares of our common stock, subject to an issuable maximum and subject to certain adjustments, which
may  cause  significant  dilution  to  our  common  stockholders. The  preferential  rights  could  result  in  divergent  interests  between  the  holders  of  shares  of  preferred  stock  and
holders of our common stock.

The issuance of future shares of common stock may result in dilution to our stockholders.

As  of  March  15,  2023,  we  had  approximately  1.5  million  shares  of  common  stock  outstanding,  excluding  0.7  million  of  potentially  dilutive  common  stock  related  to
outstanding preferred stock, warrants, options, restricted stock and common stock awards.

The issuance of these shares of common stock and the sale of these shares of common stock, or even the potential of such issuance and sale, may have a depressive effect on the
market price of our common stock, and the issuance of such common stock will cause dilution to our stockholders.

We could be subject to securities class action litigation.

In the past, securities class action litigation has often been brought against a company following a decline in the market price of its securities. This risk is especially relevant for
us because we have experienced significant stock price volatility in recent years. If we face such litigation, it could result in substantial costs and a diversion of management’s
attention and resources, which could harm our business.

An active, liquid and orderly market for our common stock or purchase warrants may not develop.

Our common stock and purchase warrants trade on the Nasdaq Capital Market. An active, liquid trading market for our common stock or purchase warrants may never develop
or be sustained. If an active, liquid market for our common stock or purchase warrants does not continue to develop or is not sustained, it may be difficult for investors to sell
shares or purchase warrants without depressing the market price, and investors may not be able to sell the shares or purchase warrants at all. An inactive or illiquid market may
also impair our ability to raise capital by selling common stock or purchase warrants and may impair our ability to acquire other businesses, applications or technologies using
our common stock or purchase warrants as consideration, which, in turn, could materially adversely affect our business.

We have entered into several agreements with our stockholders.

We  have  in  the  past,  and  may  continue  to  enter  into  from  time  to  time,  agreements  with  our  stockholders,  which  may  result  in  conflicts  of  interest.  In  addition,  these
arrangements may not have been negotiated at arm’s length and may contain terms and conditions that are not in our best interest.

Actions of activist shareholders could cause us to incur substantial costs, divert management's attention and resources, and have an adverse effect on our business.

We actively engage in discussions with our shareholders regarding further strengthening our Company and creating long-term shareholder value. Some shareholder activism,
including  potential  proxy  contests,  could  result  in  substantial  costs,  such  as  legal  fees  and  expenses,  disrupt  our  operations,  and  divert  management’s  and  our  Board  of
Directors’ attention and resources from our business and strategic plans. Public shareholder activism can create perceived uncertainties as to our future direction, strategy, or
leadership and may result in the loss of potential business opportunities, harm our ability to attract new employees, investors, collaborators and other partners, and cause our
stock price to experience volatility. These risks could adversely affect our financial performance.

47

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We do not intend to pay dividends on our common stock or preferred stock so any returns will be limited to the value of our stock.

We have never declared or paid any cash dividends on our common stock or preferred stock. We currently anticipate that we will retain future earnings for the development,
operation  and  expansion  of  our  business  and  do  not  anticipate  declaring  or  paying  any  cash  dividends  for  the  foreseeable  future.  Any  return  to  common  or  preferred
stockholders will therefore be limited to the appreciation of their stock.

Certain provisions of our Articles of Incorporation, Bylaws, and the Nevada Revised States may be deemed to have an anti-takeover effect, which could cause the market
price of our common stock to decline.

Certain provisions of our Articles of Incorporation, Bylaws, and the Nevada Revised States may be deemed to have an anti-takeover effect. Such provisions may delay, deter or
prevent a tender offer or takeover attempt that a stockholder might consider to be in that stockholder’s best interests, including attempts that might result in a premium over the
market price for the shares held by stockholders, which could cause the market price of our common stock to decline.

General Risk Factors

Our financial condition, results of operations, business and cash flow may be negatively affected by unfavorable U.S. or global economic conditions.

Our  financial  condition,  results  of  operations,  business  and  cash  flow  may  be  negatively  affected  by  general  conditions  in  the  global  economy  and  in  the  global  financial
markets and uncertainty about economic stability. The global economy has experienced extreme volatility and disruptions, including as a result of public health epidemics and
pandemics, or other outbreaks of communicable diseases, such as the COVID-19 pandemic, as well as from international conflicts, terrorism or other geopolitical events, such
as the Russian invasion of Ukraine, and related sanctions and other economic disruptions or concerns.

Additionally, the global economy and financial markets may also be adversely affected by the current or anticipated impact of military conflict, terrorism or other geopolitical
events, such as the wars in Ukraine and the Middle East. Sanctions imposed by the United States and other countries in response to such conflicts, may also adversely impact
the financial markets and the global economy, and the economic countermeasures by the affected countries or others could exacerbate market and economic instability. For
example, in response to the Russian invasion of Ukraine, the United States and certain other countries imposed significant sanctions and trade actions against Russia and could
impose further sanctions, trade restrictions, and other retaliatory actions as the conflict continues or if it worsens. It is not possible to predict the broader consequences of such
conflict or any others, such as the war in the Middle East, including related geo-political tensions, and the measures and retaliatory actions that will be taken by the United
States and other countries in respect thereof, as well as any countermeasures or retaliatory actions Russia or any other country may take in response, are likely to cause regional
instability and geo-political shifts and could materially adversely affect global trade, currency exchange rates, regional economies, and the global economy. While it is difficult
to anticipate the impact of any of the foregoing on our Company in particular, the conflict and actions taken in response to the conflict could increase our costs, disrupt our
supply chain, impair our ability to raise or access additional capital when needed on acceptable terms, if at all, or otherwise adversely affect our business, financial condition,
and results of operations.

There can be no assurance that further deterioration in credit and financial markets and confidence in economic conditions will not occur. A severe or prolonged economic
downturn could result in a variety of risks to our business, including weakened demand for any product candidates we may develop and our ability to raise additional capital
when needed on acceptable terms, if at all. A weak or declining economy could also strain our suppliers, possibly resulting in supply disruption. If the equity and credit markets
deteriorate, it may make any necessary debt or equity financing more difficult, more costly, and more dilutive. Failure to secure any necessary financing in a timely manner and
on favorable terms could impair our ability to achieve our growth strategy, could harm our financial performance and stock price and could require us to delay or abandon
clinical development plans. In addition, there is a risk that our current or future service providers, manufacturers or other collaborators may not survive such difficult economic
times,  which  could  directly  affect  our  ability  to  attain  our  operating  goals  on  schedule  and  on  budget. We  cannot  anticipate  all  of  the  ways  in  which  the  current  economic
climate and financial market conditions could adversely impact our business.

48

 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
Our  ability  to  use  potential  future  operating  losses  and  our  federal  and  state  NOL  carryforwards  to  offset  taxable  income  from  revenue  generated  from  operations  or
corporate collaborations could be limited.

The use of our NOL carryforwards may have limitations resulting from certain future ownership changes or other factors under the Code and other taxing authorities, including
foreign tax regimes. The TCJA changed both the federal deferred tax value of the NOL carryforwards and the rules of utilization of federal NOL carryforwards.

If our NOL carryforwards are limited, and we have taxable income which exceeds the available NOL carryforwards for that period, we would incur an income tax liability even
though NOL carryforwards may be available in future years prior to their expiration. Any such income tax liability may adversely affect our future cash flow, financial position
and financial results.

Tax reform may significantly affect the Company and our stockholders.

Due  to  the  potential  for  changes  to  tax  laws  and  regulations  or  changes  to  the  interpretation  thereof,  the  ambiguity  of  tax  laws  and  regulations,  the  subjectivity  of  factual
interpretations  and  other  factors,  our  estimates  of  effective  tax  rate  and  income  tax  assets  and  liabilities  may  be  incorrect  and  our  financial  statements  could  be  adversely
affected. The impact of these factors referenced in the first sentence of this paragraph may be substantially different from period-to-period.

In addition, the amount of income taxes we pay is subject to ongoing audits by U.S. federal, state and local tax authorities and by non-U.S. tax authorities. If audits result in
payments  or  assessments  different  from  our  reserves,  our  future  results  may  include  unfavorable  adjustments  to  our  tax  liabilities  and  our  financial  statements  could  be
adversely affected. Any further significant changes to the tax system in the United States or in other jurisdictions (including changes in the taxation of international income as
further described below) could adversely affect our financial statements.

Governments may impose price controls, which may adversely affect our future profitability.

We intend to seek approval to market our drug candidates in both the United States and in foreign jurisdictions. In some foreign countries and jurisdictions, particularly in the
European Union, the pricing of prescription pharmaceuticals is subject to governmental control. In these countries, pricing negotiations with governmental authorities can take
considerable time after the receipt of marketing approval for a drug candidate. To obtain reimbursement or pricing approval in some countries, we may be required to conduct
clinical trials to compare the cost effectiveness of our drug candidates to other available therapies, which is time-consuming and costly. If reimbursement of our future products
is unavailable or limited in scope or amount, or if pricing is set at unsatisfactory levels, we may be unable to achieve or sustain profitability.

Our  employees,  principal  investigators,  consultants  and  commercial  partners  may  engage  in  misconduct  or  other  improper  activities,  including  non-compliance  with
regulatory standards and requirements and insider trading.

We are exposed to the risk of fraud or other misconduct by our employees, principal investigators, consultants and commercial partners. Misconduct by these parties could
include intentional failures to comply with the regulations of the FDA and non-U.S. regulators, provide accurate information to the FDA and non-U.S. regulators, comply with
healthcare fraud and abuse 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 may restrict or prohibit a wide range of pricing, discounting, marketing and promotion, sales commission,
customer incentive programs and other business arrangements. Such misconduct could also involve the improper use of information obtained in the course of clinical studies,
which could result in regulatory sanctions and cause serious harm to our reputation or could cause regulatory agencies not to approve our drug candidates. It is not always
possible to identify and deter employee misconduct, and the precautions we take to detect and prevent this activity may not be effective 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 fines or other sanctions.

49

 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
Use of our drug candidates could be associated with adverse side effects.

As with most biopharmaceutical products, use of our drug candidates could be associated with side effects or adverse events which can vary in severity and frequency. Side
effects or adverse events associated with the use of our drug candidates may be observed at any time, including in clinical trials or once a product is commercialized, and any
such side effects or adverse events may negatively affect our ability to obtain regulatory approval or market our drug candidates. Side effects such as toxicity or other safety
issues associated with the use of our drug candidates could require us to perform additional studies or halt development or sale of these drug candidates or expose us to product
liability lawsuits which will harm our business.

The emergence of unforeseen safety issues or adverse events may lead to regulatory agencies requiring us to conduct additional preclinical or clinical trials regarding the safety
and efficacy of our drug candidates, which we have not planned or anticipated. We cannot assure you that we will resolve any issues related to any product-related adverse
events to the satisfaction of the FDA or any regulatory agency in a timely manner or ever, which could harm our business, prospects and financial condition. We may also
inadvertently fail to report adverse events we become aware of within the prescribed timeframe. We may also fail to appreciate that we have become aware of a reportable
adverse event, especially if it is not reported to us as an adverse event or if it is an adverse event that is unexpected or removed in time from the use of our products. If we fail to
comply  with  our  reporting  obligations,  the  FDA  or  other  foreign  regulatory  agencies  could  take  action  including  criminal  prosecution,  the  imposition  of  civil  monetary
penalties, seizure of our products, or delay in approval or clearance of future products.

We face potential product liability, and, if successful claims are brought against us, we may incur substantial liability and costs. If the use of our drug candidates harms
patients, or is perceived to harm patients even when such harm is unrelated to our drug candidates, our regulatory approvals could be revoked or otherwise negatively
impacted, and we could be subject to costly and damaging product liability claims.

The use of our drug candidates in clinical studies and the sale of any products for which we obtain marketing approval exposes us to the risk of product liability claims. Product
liability claims might be brought against us by consumers, healthcare providers, pharmaceutical companies or others selling or otherwise coming into contact with our products.
There is a risk that our drug candidates may induce adverse events. If we cannot successfully defend against product liability claims, we could incur substantial liability and
costs. In addition, regardless of merit or eventual outcome, product liability claims may result in, among other negative effects:

·
Impairment of our business reputation;
· Withdrawal of clinical study participants;
·
·
·
·
·

Costs due to related litigation;
Distraction of management’s attention from our primary business;
Substantial monetary awards to patients or other claimants;
The inability to commercialize our drug candidates; and
Decreased demand for our drug candidates, if approved for commercial sale,

all of which may have a material adverse effect on our business, results of operations and prospects.

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  operations  involve  the  use  of  hazardous  and  flammable  materials,  including  chemicals  and  biological  materials.  Our
operations  also  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. In the event of contamination or injury resulting from our use of hazardous materials, we could be held liable for any resulting
damages, and any liability could exceed our resources. We also could incur significant costs associated with civil or criminal fines and penalties.

50

 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The  workers’  compensation  insurance  we  maintain  to  cover  us  for  costs  and  expenses  we  may  incur  due  to  injuries  to  our  employees  resulting  from  the  use  of  hazardous
materials or other work-related injuries may not provide adequate coverage against potential liabilities. 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, which may have a material adverse effect on our
business and results of operations.

Non-cash charges such as share-based payments may adversely impact our results of operations.

We record non-cash charges related to share-based expense, which could fluctuate materially as the Company expects to continue to issue share-based payments awards and
may adversely impact our results of operations.

Varying  interpretations  of  existing  accounting  standards  and  rules  have  occurred  with  frequency  and  may  cause  us  to  have  to  restate  previously  reported  result  of
operations.

Varying interpretations of existing standards of accounting policies or accounting treatments of existing transactions may cause us to have to restate previously reported result
of operations.

Our disclosure controls and procedures may not prevent or detect all errors or acts of fraud.

We are subject to the periodic reporting requirements of the Exchange Act. Any disclosure controls and procedures or internal controls and procedures, no matter how well-
conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. These inherent limitations include the realities
that  judgments  in  decision-making  can  be  faulty  and  that  breakdowns  can  occur  because  of  simple  error  or  mistake.  Additionally,  controls  can  be  circumvented  by  the
individual acts of some persons, by collusion of two or more people or by an unauthorized override of the controls. Accordingly, because of the inherent limitations in our
control system, misstatements due to error or fraud may occur and not be detected, which may have a material adverse effect on our business and results of operations.

Failure  in  our  information  technology  systems  or  those  of  our  third-party  service  providers,  including  by  cybersecurity  attacks  or  other  data  security  incidents,  could
significantly disrupt our operations.

Our operations depend, in part, on the continued performance of our information technology systems, which are cloud-based and maintained by third-party service providers.
Our  information  technology  systems  are  potentially  vulnerable  to  physical  or  electronic  break-ins,  computer  viruses  and  similar  disruptions.  Failure  of  our  information
technology systems could adversely affect our business, profitability and financial condition.

A  successful  cybersecurity  attack  or  other  data  security  incident  could  result  in  the  misappropriation  and/or  loss  of  confidential  or  personal  information,  create  system
interruptions or deploy malicious software that attacks our systems. It is possible that a cybersecurity attack might not be noticed for some period of time. The occurrence of a
cybersecurity attack or incident could result in business interruptions from the disruption of our information technology systems, or negative publicity resulting in reputational
damage with our clinical trial participants, customers, stockholders and other stakeholders and/or increased costs to prevent, respond to or mitigate cybersecurity events. In
addition, the unauthorized dissemination of sensitive personal information or proprietary or confidential information could expose us or other third parties to regulatory fines or
penalties, litigation and potential liability, or otherwise harm our business.

51

 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
We are a smaller reporting company, and the reduced reporting requirements applicable to smaller reporting companies may make our common stock less attractive to
investors.

We  are  a  smaller  reporting  company  (“SRC”),  which  allows  us  to  take  advantage  of  exemptions  from  various  reporting  requirements  that  are  applicable  to  other  public
companies that are not SRCs, including not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act of 2002, as amended,
reduced disclosure obligations regarding executive compensation in our Annual Report and our periodic reports and proxy statements and providing only two years of audited
financial statements in our Annual Report and our periodic reports. We will remain an SRC until (a) the aggregate market value of our outstanding common stock held by non-
affiliates as of the last business day our most recently completed second fiscal quarter exceeds $250 million or (b) (1) we have over $100 million in annual revenues and (2) the
aggregate market value of our outstanding common stock held by non-affiliates as of the last business day our most recently completed second fiscal quarter exceeds $700
million. We cannot predict whether investors will find our common stock less attractive if we rely on certain or all of these exemptions. If some investors find our common
stock less attractive as a result, there may be a less active trading market for our common stock and our stock price may be more volatile and may decline.

ITEM 1B – UNRESOLVED STAFF COMMENTS

Not applicable.

ITEM 1C – CYBERSECURITY

Risk management and strategy

We, through our third-party provider that manages our information technology systems and networks, maintain policies and processes for assessing, identifying, and managing
material  risk  from  cybersecurity  threats,  and  have  integrated  these  processes  into  our  overall  risk  management  systems  and  processes.  Primary  responsibility  for  assessing,
monitoring and managing our cybersecurity risks rests with the Chief Financial Officer, who manages the Company’s overall risk assessment and mitigation process.

In addition to monitoring cybersecurity threats to the Company’s information systems, the Company’s risk management practices are intended to help monitor, mitigate and
prevent  cybersecurity  risks  from  external  sources. We  operate  as  a  virtual  company  and  maintain  vital  information,  including  financial  and  payroll  information,  on  servers
owned and maintained by our vendors. As such, we rely on the internal controls of our third party vendors to protect our vital information. We obtain and review reports on the
internal controls of our vendors on an annual basis to ensure that we believe their cybersecurity procedures are adequate and to confirm that there have been no data breaches
affecting our information.

We engage third party services in connection with our cybersecurity risk assessment processes. These service providers assist us to design and implement our cybersecurity
policies and procedures, as well as to monitor and test our safeguards. Our managed information technology service provider monitors and alerts us of cybersecurity threats and
potential  breaches.  Our  managed  information  technology  service  provider  has  the  ability  to  implement  and  maintain  appropriate  security  measures,  consistent  with  all
applicable laws, to implement and maintain reasonable security measures in connection with their work with us, and to promptly report any suspected breach of its security
measures that may affect our company. Employee training and phishing campaigns are conducted every year. The Company’s employees are expected to help safeguard the
Company’s information systems and to assist in the discovery and reporting of cybersecurity incidents.

Although we may face a number of cybersecurity risks in connection with our business, we have not experienced any cybersecurity threats, incidents, or challenges that have
materially affected, or are reasonably likely to materially affect, our business strategy, results of operations, or financial condition. For additional information regarding risks
from cybersecurity threats, please refer to Item 1A, “Risk Factors,” in this annual report on Form 10-K.

Governance

One of the key functions of our board of directors is informed oversight of our risk management process, including risks from cybersecurity threats. Our board of directors is
responsible  for  monitoring  and  assessing  strategic  risk  exposure,  and  our  executive  officers,  with  assistance  from  third-party  consultants  or  advisors  as  appropriate,  are
responsible for the day-to-day management of the material risks we face. Our Chief Financial Officer oversees our cybersecurity risk assessment and mitigation process, and is
responsible for the timely reporting of any material cybersecurity incident or threat, as well as any other cybersecurity related risks, to our board of directors.

52

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 2 – PROPERTIES

We  rent  office  space  at  an  office  share  location  at  945  Concord  Street  in  Framingham,  Massachusetts. The  lease  agreement  is  for  12  months  through  September  2024. We
believe that this space is adequate for our current needs and that if additional space is required, it can be obtained at commercially reasonable terms nearby.

In addition, we lease 360 sq. ft. of office space in Miami, Florida. The lease provided for an initial term of 12 months, which commenced on December 1, 2016, and has been
extended on a year-by-year basis through November 30, 2024. We believe that this space is adequate for our current needs and that if additional space is required, it can be
obtained at commercially reasonable terms either within its current space or nearby.

ITEM 3 – LEGAL PROCEEDINGS

From time to time, we may be a party to litigation and subject to claims incident to the ordinary course of business. Although the results of litigation and claims cannot be
predicted with certainty, we currently believe that the final outcome of these ordinary course matters will not have a material adverse effect on our business. 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.

There are no matters, as of December 31, 2023, that, in the opinion of management, might have a material adverse effect on our financial position, results of operations or cash
flows.

ITEM 4 – MINE SAFETY DISCLOSURES

Not applicable.

53

 
 
 
  
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM  5  –  MARKET  FOR  REGISTRANT’S  COMMON  EQUITY,  RELATED  STOCKHOLDER  MATTERS  AND  ISSUER  PURCHASES  OF  EQUITY
SECURITIES

Our common stock and common stock purchase warrants are listed on the Nasdaq Capital Market under the symbols “XBIO” and “XBIOW”, respectively.

PART II

Holders of Record

As of March 15, 2024, there were 425 holders of record of our common stock.

Dividends

We have never previously declared or paid any cash dividends on our common stock. We currently intend to retain earnings and profits, if any, to support our business strategy
and  do  not  intend  to  pay  any  cash  dividends  within  the  foreseeable  future. Any  future  determination  to  pay  cash  dividends  will  be  at  the  sole  discretion  of  our  Board  of
Directors and will depend upon the financial condition of the Company, our operating results, capital requirements, general business conditions and any other factors that the
Board of Directors deems relevant.

Equity Compensation Plan Information

The information required by Item 5 with respect to securities authorized for issuance under equity compensation plans is incorporated herein by reference to Part III, Item 12 of
this Form 10-K.

Recent Sales of Unregistered Securities

None.

Repurchases of Equity Securities of the Issuer

During the quarter ended December 31, 2023, we did not repurchase any of our outstanding shares of common stock.

ITEM 6 – [RESERVED]

Reserved.

ITEM 7 – MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

BUSINESS OVERVIEW

We  are  a  biopharmaceutical  company  focused  on  advancing  innovative  immune-oncology  technologies  addressing  hard  to  treat  cancers.  Our  Deoxyribonuclease  (“DNase”)
platform is designed to improve outcomes of existing treatments, including immunotherapies, by targeting neutrophil extracellular traps (“NETs”), which have been implicated
in  cancer  progression  and  resistance  to  cancer  treatments. We  are  currently  focused  on  advancing  our  systemic  DNase  program  into  the  clinic  as  an  adjunctive  therapy  for
pancreatic  carcinoma  and  locally  advanced  or  metastatic  solid  tumors. Additionally,  we  have  partnered  with  biotechnology  and  pharmaceutical  companies  to  develop  our
proprietary drug delivery platform, PolyXen, and receive royalty payments under an exclusive license arrangement in the field of blood coagulation disorders.

54

 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We incorporate our patented and proprietary technologies into drug candidates currently under development with biotechnology and pharmaceutical industry collaborators to
create what we believe will be the next-generation biologic drugs with improved pharmacological properties over existing therapeutics. Our drug candidates have resulted from
our research activities or that of our collaborators and are in the development stage. As a result, we continue to commit a significant amount of our resources to our research and
development activities and anticipate continuing to do so for the near future. To date, none of our drug candidates have received regulatory marketing authorization or approval
in the United States (“U.S.”) by the Food and Drug Administration (“FDA”) nor in any other countries or territories by any applicable agencies. We are receiving ongoing
royalties pursuant to a license of our PolyXen technology to an industry partner. Although we hold a broad patent portfolio, the focus of our internal efforts during the year
ended December 31, 2023, was on the advancement of our DNase platform.

Critical Accounting Policies and Estimates

The preparation of our financial statements in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”) requires us to make estimates, judgments and
assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenue, costs and expenses during the
reporting period. On an ongoing basis, we evaluate our estimates that are based on historical experience and on various other assumptions that we believe to be reasonable
under the circumstances. The result of these evaluations forms the basis for making judgments about the carrying values of assets and liabilities and the reported amount of
expenses that are not readily apparent from other sources. Because future events and their effects cannot be determined with certainty, actual results and outcomes may differ
materially from our estimates, judgments and assumptions.

Management believes that the following accounting estimates are the most critical to aid in fully understanding and evaluating our reported financial results, and they require
management’s most difficult subjective or complex judgments, resulting from the need to make estimates about the effect of matters that are inherently uncertain. The following
narrative describes these critical accounting estimates, judgments and assumptions and the effect if actual results differ from these assumptions.

Revenue Recognition

We enter into supply, license and collaboration arrangements with pharmaceutical and biotechnology partners, some of which include royalty agreements based on potential net
sales of approved commercial pharmaceutical products.

We recognize revenue in accordance with Accounting Standards Codification (“ASC”) Topic 606, Revenue from Contracts with Customers (“ASC 606”). This standard applies
to all contracts with customers, except for contracts that are within the scope of other standards, such as leases, insurance, collaboration arrangements and financial instruments.
Under ASC 606, an entity recognizes revenue when its customer obtains control of promised goods or services, in an amount that reflects the consideration which the entity
expects to receive in exchange for those goods or services. To determine revenue recognition for arrangements that an entity determines are within the scope of ASC 606, the
entity performs the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction
price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue at a point in time, or over time, as it satisfies a performance
obligation. We  only  apply  the  five-step  model  to  contracts  when  it  is  probable  that  it  will  collect  the  consideration  it  is  entitled  to  in  exchange  for  the  goods  or  services  it
transfers  to  the  customer. At  contract  inception,  once  the  contract  is  determined  to  be  within  the  scope  of ASC  606,  we  assess  the  goods  or  services  promised  within  each
contract,  determine  those  that  are  performance  obligations,  and  assess  whether  each  promised  good  or  service  is  distinct. We  then  recognize  as  revenue  the  amount  of  the
transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied.

As part of the accounting for these arrangements, we must use significant judgment to determine: a) the number of performance obligations based on the determination under
step (ii) above; b) the transaction price under step (iii) above; and c) the stand-alone selling price for each performance obligation identified in the contract for the allocation of
transaction price in step (iv) above. We use judgment to determine whether milestones or other variable consideration should be included in the transaction price as described
further below. The transaction price is allocated to each performance obligation on a relative stand-alone selling price basis, for which we recognize revenue as or when the
performance  obligations  under  the  contract  are  satisfied.  In  developing  the  stand-alone  price  for  a  performance  obligation,  we  consider  applicable  market  conditions  and
relevant entity-specific factors, including factors that were contemplated in negotiating the agreement with the customer and estimated costs. We validate the stand-alone selling
price for performance obligations by evaluating whether changes in the key assumptions used to determine the stand-alone selling prices will have a significant effect on the
allocation of transaction price between multiple performance obligations. We recognize a contract asset or liability for the difference between our performance (i.e., the goods
or services transferred to the customer) and the customer’s performance (i.e., the consideration paid by, and unconditionally due from, the customer).

55

 
 
 
 
 
 
 
 
 
 
 
 
 
 
The  terms  of  our  license  agreements  may  include  delivery  of  an  IP  license  to  a  collaboration  partner.  We  may  be  compensated  under  license  arrangements  through  a
combination  of  non-refundable  upfront  receipts,  development  and  regulatory  objective  receipts  and  royalty  receipts  on  future  product  sales  by  partners.  We  anticipate
recognizing  non-refundable  upfront  license  payments  and  development  and  regulatory  milestone  payments  received  by  us  in  license  and  collaboration  arrangements  that
include  future  obligations,  such  as  supply  obligations,  ratably  over  our  expected  performance  period  under  each  respective  arrangement. We  make  our  best  estimate  of  the
period over which we expect to fulfill our performance obligations, which may include technology transfer assistance, research activities, clinical development activities, and
manufacturing activities from development through the commercialization of the product. Given the uncertainties of these collaboration arrangements, significant judgment is
required to determine the duration of the performance period.

When  we  enter  into  an  arrangement  to  sublicense  some  of  our  patents,  we  will  consider  the  performance  obligations  to  determine  if  there  is  a  single  element  or  multiple
elements to the arrangement as we determine the proper method and timing of revenue recognition. We consider the terms of the license or sublicense for such elements as price
adjustments  or  refund  clauses  in  addition  to  any  performance  obligations  for  us  to  provide  such  as  services,  patent  defense  costs,  technology  support,  marketing  or  sales
assistance or any other elements to the arrangement that could constitute an additional deliverable to it that could change the timing of the revenue recognition. Non-refundable
upfront  license  and  sublicense  fees  received,  whereby  continued  performance  or  future  obligations  are  considered  inconsequential  or  perfunctory  to  the  relevant  licensed
technology, are recognized as revenue upon delivery of the technology.

We  expect  to  recognize  royalty  revenue  in  the  period  of  sale,  based  on  the  underlying  contract  terms,  provided  that  the  reported  sales  are  reliably  measurable,  we  have  no
remaining performance obligations, and all other revenue recognition criteria are met. We anticipate reimbursements for research and development services completed by us
related to the collaboration agreements to be recognized in operations as revenue on a gross basis. Our license and collaboration agreements with certain collaboration partners
could also provide for future milestone receipts to us based solely upon the performance of the respective collaboration partner in consideration of deadline extensions or upon
the achievement of specified sales volumes of approved drugs. For such receipts, we expect to recognize the receipts as revenue when earned under the applicable contract
terms on a performance basis or ratably over the term of the agreement. These receipts may also be recognized as revenue when continued performance or future obligations by
us are considered inconsequential or perfunctory.

Research and Development Expenses

Research and development expenses consist of expenses incurred in performing research and development activities, including compensation and benefits, facilities expenses,
overhead  expenses,  pre-clinical  development,  clinical  trial  and  related  clinical  manufacturing  expenses,  fees  paid  to  contract  research  organizations  (“CROs”)  and  contract
manufacturing organizations (“CMOs") and other outside expenses. We expense research and development costs as incurred. We expense upfront, non-refundable payments
made  for  research  and  development  services  as  obligations  are  incurred.  The  value  ascribed  to  intangible  assets  acquired  but  which  have  not  met  capitalization  criteria  is
expensed as research and development at the time of acquisition. Upfront payments under license agreements are expensed upon receipt of the license. Milestone payments
under license agreements are accrued, with a corresponding expense being recognized, in the period in which the milestone is determined to be probable of achievement and the
related amount is reasonably estimable.

56

 
 
 
  
 
 
 
 
 
 
 
 
We  are  required  to  estimate  accrued  research  and  development  expenses  at  each  reporting  period.  This  process  involves  reviewing  open  contracts  and  purchase  orders,
communicating with our personnel to identify services that have been performed on our behalf and estimating the level of service performed and the associated cost incurred for
the service when we have not yet been invoiced or otherwise notified of actual costs. The majority of our service providers invoice us in arrears for services performed, on a
pre-determined schedule or when contractual milestones are met. However, some require advanced payments. We make estimates of accrued expenses as of each balance sheet
date in the financial statements based on facts and circumstances known at that time. We periodically confirm the accuracy of the estimates with the service providers and make
adjustments, if necessary. Examples of estimated accrued research and development expenses include fees paid to:

·
·
·
·
·

Collaborative partners performing research and development and pre-clinical activities;
Program managers in connection with overall program management of clinical trials;
CMOs in connection with cGMP manufacturing;
CROs in connection with clinical trials; and
Investigative sites in connection with clinical trials.

We  base  our  expenses  related  to  research  and  development,  pre-clinical  activities,  manufacturing  and  clinical  trials  on  our  estimates  of  the  services  received  and  efforts
expended pursuant to quotes and contracts with multiple research institutions, CMOs and CROs that conduct and manage clinical trials on our behalf. The financial terms of
these  agreements  are  subject  to  negotiation,  vary  from  contract  to  contract  and  may  result  in  uneven  payment  flows.  There  may  be  instances  in  which  payments  made  to
vendors will exceed the level of services provided and result in a prepayment of the expense. In accruing service fees, we estimate the time period over which services will be
performed and the level of effort to be expended in each period. If the actual timing of the performance of services or the level of effort varies from the estimate, we adjust the
accrual or prepaid accordingly. Although we do not expect our estimates to be materially different from amounts actually incurred, our understanding of the status and timing of
services performed relative to the actual status and timing of services performed may vary and may result in reporting amounts that are too high or too low in any particular
period. To date, there have not been any material adjustments to our prior estimates of accrued research and development expenses.

Share-based Expense

Share-based  expense  includes  grants  of  options  and  restricted  stock  units  (“RSUs”)  to  employees  and  non-employees  to  purchase  shares  of  our  common  stock,  Joint  Share
Ownership Plan awards to employees and agreements to issue common stock in exchange for services provided by non-employees.

Share-based expense is based on the estimated fair value of the option or calculated using the Black-Scholes option pricing model. Determining the appropriate fair value model
and related assumptions requires judgment, including estimating share price volatility and expected terms of the awards. The expected volatility rates are estimated based on the
historical volatility of the Company. To the extent Company data is not available for the full expected term of the awards, we use a weighted average of our historical volatility
and  of  a  peer  group  of  comparable  publicly  traded  companies  over  the  expected  term  of  the  option. The  expected  term  represents  the  time  that  options  are  expected  to  be
outstanding. We account for forfeitures as they occur and not at the time of grant. We have not paid dividends and do not anticipate paying cash dividends in the foreseeable
future and, accordingly, we use an expected dividend yield of zero. The risk-free interest rate is based on the rate of U.S. Treasury securities with maturities consistent with the
estimated expected term of the awards. Upon exercise, stock options are redeemed for newly issued shares of our common stock. RSUs are redeemed for newly issued shares of
our common stock as the vesting and settlement provisions of the grant are met.

For employee options that vest based solely on service conditions, the fair value measurement date is generally on the date of grant and the related compensation expense is
recognized  on  a  straight-line  basis  over  the  requisite  vesting  period  of  the  awards.  For  non-employee  options  issued  in  exchange  for  goods  or  services  consumed  in  our
operations, the fair value measurement date is the earlier of the date the performance of services is complete or the date the performance commitment has been reached. We
generally  determine  that  the  fair  value  of  the  stock  options  is  more  reliably  measurable  than  the  fair  value  of  the  services  received.  Compensation  expense  related  to  stock
options granted to non-employees is recognized on a straight-line basis over requisite vesting periods of the awards.

57

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Warrants

In connection with certain financing, consulting and collaboration arrangements, we issued warrants to purchase shares of our common stock. The outstanding warrants are
standalone instruments that are not puttable or mandatorily redeemable by the holder and are classified as equity awards. We measure the fair value of the awards using the
Black-Scholes  option  pricing  model  as  of  the  measurement  date.  Warrants  issued  to  collaboration  partners  in  conjunction  with  the  issuance  of  common  stock  are  initially
recorded at fair value as a reduction in additional paid-in capital of the common stock issued.

All other warrants are recorded at fair value as expense on a straight-line basis over the requisite service period or at the date of issuance if there is not a service period or if
service has already been rendered. For warrants that contain vesting triggers based on the achievement of certain objectives, we apply judgment to estimate the probability and
timing of the achievement of those objectives. These estimates involve inherent uncertainties, and as a result, if the probability or timing of the achievement of those objectives
change, expense related warrants could be materially different in the future. For warrants issued in connection with financing arrangements we allocate the proceeds based on
the relative fair value of the award and other instrument(s).

Indefinite-lived Intangible Assets

Assets  acquired  and  liabilities  assumed  in  business  combinations,  licensing  and  other  transactions  are  generally  recognized  at  the  date  of  acquisition  at  their  respective  fair
values. At  acquisition,  we  generally  determine  the  fair  value  of  intangible  assets,  including  in-process  research  and  development  (“IPR&D”),  using  the  “income  method.”
Acquired  IPR&D  intangible  assets  are  considered  indefinite-lived  intangible  assets  until  completion  or  abandonment  of  the  associated  research  and  development  efforts.
Substantial additional research and development may be required before the Company’s IPR&D reaches technological feasibility. Upon completion of the IPR&D project, the
IPR&D assets will be amortized over their estimated useful lives.

Indefinite lived intangibles are not amortized but are reviewed for impairment at least annually or when events or changes in the business environment indicate it is more likely
than not that the carrying value may be impaired. Our annual assessment may consist of a qualitative or quantitative analysis to determine if it is more likely than not that its
fair value exceeds the carrying value. When performing the qualitative method, we determine whether the existence of events or circumstances leads us to determine that it is
more likely than not (that is, a likelihood of more than 50%) that indefinite lived intangibles are impaired. If we choose to first assess qualitative factors and it is determined
that it is not more likely than not that intangible assets are impaired, then we are not required to take further action to test for impairment. We also have the option to bypass the
qualitative assessment and perform only the quantitative impairment test, which we may choose to perform in some periods but not in others. As the option to perform the
qualitative assessment is not a permanent election, we reassess this option during each annual impairment review. An impairment loss, if any, is measured as the excess of the
carrying value of the intangible asset over its fair value.

Intangible assets are highly vulnerable to impairment charges, particularly newly acquired assets for IPR&D. Considering the high risk nature of research and development and
the  industry’s  success  rate  of  bringing  developmental  compounds  to  market,  IPR&D  impairment  charges  are  likely  to  occur  in  future  periods.  Estimating  the  fair  value  of
IPR&D for potential impairment is highly sensitive to changes in projections and assumptions and changes in assumptions could potentially lead to impairment.

We  believe  our  estimates  and  assumptions  are  reasonable  and  otherwise  consistent  with  assumptions  that  market  participants  would  use  in  their  estimates  of  fair  value.
However, if future results are not consistent with our estimates and assumptions, then we may be exposed to an impairment charge, which could be material. Use of different
estimates and judgments could yield materially different results in our analysis and could result in materially different asset values or expense.

58

 
 
 
 
   
 
 
 
 
 
 
 
 
 
Impact of the Global Conflicts on Our Operations

The short and long-term implications of Russia’s invasion of Ukraine and conflict in the Middle East are difficult to predict at this time. The imposition of current and future
sanctions and counter sanctions may have an adverse effect on the economic markets generally and could impact our business, financial condition, and results of operations.

Results of Operations

The table below sets forth the comparison of our historical results of operations for the year ended December 31, 2023 to the year ended December 31, 2022.

Description
Revenue:
Royalty revenue
Operating costs and expenses:
Research and development
General and administrative
Total operating costs and expenses
Loss from operations
Other income (expense):
Other income (expense)
Interest income, net
Net loss

Revenue

2023

2022

Increase
(Decrease)

Percentage
Change

$

2,539,986   

$

1,706,925   

$

833,061   

48.8% 

(3,494,765)  
(3,560,936)  
(7,055,701)  
(4,515,715)  

(4,770,834)  
(3,653,999)  
(8,424,833)  
(6,717,908)  

25,380   
355,757   
(4,134,578)  

$

(1,597)  
167,152   
(6,552,353)  

$

$

(1,276,069)  
(93,063)  
(1,369,132)  
(2,202,193)  

26,977   
188,605   
(2,417,775)  

(26.7)%
(2.5)%
(16.3)%
(32.8)%

1,689.2%
112.8%
(36.9)%

Revenue for the year ended December 31, 2023 increased by $0.8 million, or 48.8%, to $2.5 million from approximately $1.7 million for the year ended December 31, 2022.
The increase represents an increase in royalty revenue related to our sublicense agreement with Takeda as compared to the same period in 2022.

Research and Development Expense

Overall,  R&D  expenses  for  the  year  ended  December  31,  2023  decreased  by  $1.3  million,  or  26.7%  to  $3.5  million  from  $4.8  million  in  the  comparable  period  in  2022
primarily due to IPR&D expense of $1.8 million. During the year ended December 31, 2022, the Company expensed $1.8 million of IPR&D associated with our licensing of
the  DNase  platform.  There  was  no  similar  expense  in  2023.  Excluding  the  $1.8  million  of  IPR&D  expense  from  total  R&D  expense  of  $4.8  million  for  the  year  ended
December 31, 2022, R&D expenses for the year ended December 31, 2023 increased approximately $0.5 million, or 17.4% to $3.5 million, from $3.0 million for the year ended
December 31, 2022. The table below sets forth the R&D costs incurred by us, by category of expense, for the years ended December 31, 2023 and 2022:

Category of Expense

IPR&D expense
Outside services and contract research organizations
Salaries and wages
Share-based expense
Other
Total research and development expense

Year ended December 31,

2023

2022

–   
2,886,985   
417,952   
56,112   
133,716   
3,494,765   

$

$

1,793,750 
2,314,513 
435,564 
86,305 
140,702 
4,770,834 

$

$

59

 
 
 
 
 
 
 
   
   
   
 
 
 
    
 
    
 
    
 
  
 
 
 
 
    
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The increase in outside services and contract research organizations expense was primarily due to increased spending in connection with our pre-clinical development efforts
associated with our DNase platform. We licensed the DNase platform in April 2022 and directed our R&D efforts and resources on the development of this newly acquired
technology. As a result, we suspended development of our XCART technology platform.

General and Administrative Expense

General and administrative expenses for the year ended December 31, 2023 was $3.6 million, decreasing by approximately $0.1 million, or 2.5%, compared to the same period
in the prior year. The decrease was primarily due to a decrease in employee related costs substantially offset by increases in consulting and legal costs during the year ended
December 31, 2023 compared to the prior year.

Other Income (Expense)

Other income was approximately $25,000 for the year ended December 31, 2023 compared to other expense of approximately $1,600 for the same period in 2022. This increase
in other income was primarily related to fees associated with the Pharmsynthez Loan recognized during the year ended December 31, 2023 for which there were no similar fees
received in 2022.

Interest Income, net

Interest  income,  net  increased  to  approximately  $0.4  million  during  the  year  ended  December  31,  2023  as  compared  to  approximately  $0.2  million  in  the  prior  year.  This
increase is due to higher interest rates on invested funds during the year ended December 31, 2023 compared to the prior year, as well as an increase in interest income on the
Pharmsynthez Loan. 

Non-GAAP Measures

In  our  narrative  discussion  of  operations  above,  we  exclude  the  impact  of  non-cash  expenses  from  certain  operating  measures,  which  narrative  discussion  includes
reconciliation of such adjusted financial measures to the directly comparable GAAP financial measure. We believe these adjusted operating measures may provide investors
with useful information regarding our underlying performance from period to period and allow investors to better understand our results of operations. Management uses these
adjusted measures when assessing the performance of the business.

Liquidity and Capital Resources

We incurred a net loss of approximately $4.1 million for the year ended December 31, 2023. We had an accumulated deficit of approximately $193.2 million at December 31,
2023, as compared to an accumulated deficit of approximately $189.1 million at December 31, 2022. Working capital was approximately $8.8 million at December 31, 2023,
and $12.6 million at December 31, 2022, respectively. During the year ended December 31, 2023, our working capital decreased by $3.8 million primarily due to our net loss
for the year ended December 31, 2023 and, to a lesser extent, decreases in current liabilities.

Our principal source of liquidity consists of cash. At December 31, 2023, we had approximately $9.0 million in cash and $0.8 million in current liabilities. At December 31,
2022, we had approximately $13.1 million in cash and $1.1 million in current liabilities.

60

 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We evaluate whether there are conditions or events, considered in the aggregate that raise substantial doubt about our ability to continue as a going concern within one year
after the date that the financial statements are issued. We have incurred substantial losses since our inception, and we expect to continue to incur operating losses in the near-
term. These  factors  raise  substantial  doubt  about  our  ability  to  continue  as  a  going  concern. We  believe  that  we  have  access  to  capital  resources  through  possible  public  or
private equity offerings, debt financings, corporate collaborations, related party funding, or other means to continue as a going concern. We believe that our existing resources
will be adequate to fund our operations for a period of at least twelve months from the date of the issuance of these financial statements. However, we anticipate we may need
additional  capital  in  the  long-term  to  pursue  our  business  initiatives.  The  terms,  timing  and  extent  of  any  future  financing  will  depend  upon  several  factors,  including  the
achievement  of  progress  in  our  clinical  development  programs,  our  ability  to  identify  and  enter  into  licensing  or  other  strategic  arrangements,  our  continued  listing  on  the
Nasdaq Stock Market (“Nasdaq”), and factors related to financial, economic, geo-political, industry and market conditions, many of which are beyond our control. The capital
markets for the biotech industry can be highly volatile, which make the terms, timing and extent of any future financing uncertain. On June 3, 2022, we received a written
notification  from  the  Listing  Qualifications  Department  of  Nasdaq  notifying  us  that  the  closing  bid  price  for  our  common  stock  had  been  below  $1.00  for  30  consecutive
business days and that we therefore were not in compliance with the minimum bid price requirement for continued inclusion on Nasdaq under Nasdaq Listing Rule 5550(a)(2)
(the “Bid Price Requirement”). On May 15, 2023, we effected a reduction, on a 1-for-10 basis, in our authorized common stock, par value $0.001, along with a corresponding
and proportional decrease in the number of shares issued and outstanding. On May 30, 2023, we received a letter from Nasdaq notifying us that we had regained compliance
with the Bid Price Requirement as a result of the closing bid price of the Company’s common stock being at $1.00 per share or greater for the 10 consecutive business days
from May 15, 2023 through May 26, 2023 and that this matter is closed.

Cash Flows from Operating Activities

Cash  flows  used  in  operating  activities  for  the  year  ended  December  31,  2023  totaled  approximately  $4.1  million,  which  was  primarily  due  to  our  net  loss  for  the  period,
partially offset by non-cash charges associated with share-based expense and, to a lesser extent, a decrease in current liabilities. Cash flows used in operating activities for the
year ended December 31, 2022 totaled approximately $4.6 million, which was primarily due to our net loss for the period, partially offset by non-cash charges associated with
acquired IPR&D and share-based expense. In addition, current liabilities decreased during the year ended December 31, 2022.

Cash Flows from Investing Activities

There were no cash flows from investing activities for the year ended December 31, 2023. Cash flows used in investing activities for the year ended December 31, 2022 totaled
$500,000, which represented cash paid to license the DNase oncology platform.

Cash Flows from Financing Activities

There were no cash flows from financing activities for each of the years ended December 31, 2023 and 2022.

61

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Contractual Obligations

Contractual obligations represent future cash commitments and liabilities under agreements with third-parties and exclude contingent liabilities for which we cannot reasonably
predict future payment. Our contractual obligations result from property leases for office space. Although we do have obligations for CMO and CRO services, the table below
excludes  potential  payments  we  may  be  required  to  make  under  our  agreements  with  CMOs  and  CROs  because  timing  of  payments  and  actual  amounts  paid  under  those
agreements may be different depending on the timing of receipt of goods or services or changes to agreed-upon terms or amounts for some obligations, and those agreements
are cancelable upon written notice by the Company and therefore, not long-term liabilities. The contracts may also contain variable costs that are hard to predict as they are
based on such things as patients enrolled and clinical trial sites, which can vary and, therefore, are also not included in the table below. Additionally, the expected timing of
payment of the obligations presented below is estimated based on current information.

The following tables represent our contractual obligations as of December 31, 2023, aggregated by type:

Total

Less
than
1 year

1-3
years

3-5
years

More
than
5 years

Lease obligations
Total

$
$

30,290   
30,290   

$
$

30,290   
30,290   

$
$

–   
–   

$
$

–   
–   

$
$

– 
– 

Payments Due by Period
As of December 31, 2023

Recent Accounting Standards

Refer to Note 3, Summary of Significant Accounting Policies, of the accompanying financial statements set forth in Item 8.

ITEM 7A – QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are not required to provide the information required by this Item because we are a “smaller reporting company” (as
defined in Rule 12b-2 of the Exchange Act).

62

 
 
 
 
 
 
 
 
 
 
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 8 – FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Report of Independent Registered Public Accounting Firm (PCAOB ID 688)

Consolidated Balance Sheets as of December 31, 2023 and 2022

Consolidated Statements of Comprehensive Loss for the years ended December 31, 2023 and 2022

Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2023 and 2022

Consolidated Statements of Cash Flows for the years ended December 31, 2023 and 2022

Notes to Consolidated Financial Statements

F-1

F-3

F-4

F-5

F-6

F-7

63

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and Board of Directors of
Xenetic Biosciences, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Xenetic Biosciences, Inc. (the “Company”) as of December 31, 2023 and 2022, the related consolidated
statements of comprehensive loss, stockholders’ equity and cash flows for each of the two years in the period ended December 31, 2023, and the related notes (collectively
referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December
31,  2023  and  2022,  and  the  results  of  its  operations  and  its  cash  flows  for  each  of  the  two  years  in  the  period  ended  December  31,  2023,  in  conformity  with  accounting
principles generally accepted in the United States of America.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's 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 audits to obtain reasonable assurance about
whether the 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 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 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 financial statements. We
believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matters

The  critical  audit  matters  communicated  below  are  matters  arising  from  the  current  period  audit  of  the  financial  statements  that  were  communicated  or  required  to  be
communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging,
subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are
not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

Going Concern Assessment

Description of the Matter

We identified the Company’s assessment of its ability to continue as a going concern and related disclosures as a critical audit matter. The Company prepared future cash flow
forecasts which involves judgement and estimation of key variables such as future expected revenue royalty proceeds and costs associated with progressing DNase technology.
Auditing the Company’s going concern assessment described above involves a high degree of auditor judgment to assess the reasonableness of the cash flow forecasts and other
assumptions used in the Company’s going concern analysis.

As described in Note 1 to the consolidated financial statements, management believes that the Company has sufficient funding available to it at the date of approval of these
financial statements and that it will be able to continue as a going concern for a period of at least twelve months from the date of these financial statements. In making this
assessment, management has considered the Company’s existing resources.

F-1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
How We Addressed the Matter in Our Audit

We evaluated the assumptions used in the model to estimate the future cash flows for the next twelve months from the date of our opinion by comparing assumptions used by
management against historical performance, budgets, and the Company’s strategic plans. We also assessed the key assumptions including those pertaining to revenue royalty
proceeds  and  the  timing  of  significant  payments  in  the  cash  flow  forecast  by  comparing  them  to  historical  data  and  the  underlying  agreements.  We  performed  sensitivity
analyses on key assumptions such as future expected costs to determine their impact on the projections of future cash flows. Further, we assessed the Company’s disclosures
with respect to its going concern assessment.

Revenue Recognition over Royalty Revenue

Description of the Matter

As described in Note 3 to the consolidated financial statements, the Company’s sources of revenue include royalty proceeds from a royalty agreement with a third-party based
on potential net sales of approved commercial pharmaceutical products which is based on estimated variable consideration. The Company must use significant judgment to
determine when the reported sales are reliably measurable, the Company has no remaining performance obligations, and all other revenue recognition criteria are met.  The
Company’s policy is to recognize expected royalties as revenue when they are reliably measurable, which is upon receipt of reports from the third-party. The Company typically
receives these reports in the quarter subsequent to the actual sublicensee sales.

The principal consideration for our determination that performing procedures relating to revenue recognition, specifically related to management’s estimate of the potential net
sales as expected variable consideration, is a critical audit matter that requires significant judgment by management in determining the best estimate of the amount of expected
variable  consideration.  This  in  turn  led  to  a  high  degree  of  auditor  judgment,  subjectivity  and  effort  in  performing  procedures  and  evaluating  audit  evidence  related  to
management’s identification of expected variable consideration within the royalty contract with the third-party and the judgments made by management used to estimate the
best estimate of variable consideration.

How We Addressed the Matter in Our Audit

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements.
These  procedures  included  evaluating  management’s  best  estimate  of  the  potential  net  sales  by  the  third-party  to  determine  variable  consideration.  These  procedures  also
included, among others, (i) evaluating and testing the reasonableness of the significant assumptions used by management, (ii) consideration of both historical or current trends,
noting a relative lack of historical experience available in relation to expected amounts and (iii) obtaining and vouching evidence including reports received from the third-
party.

Marcum LLP

We have served as the Company’s auditor since 2015.

Boston, Massachusetts
March 21, 2024

F-2

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
XENETIC BIOSCIENCES, INC.
CONSOLIDATED BALANCE SHEETS

December 31, 2023    

December 31, 2022  

ASSETS
Current assets:

Cash
Prepaid expenses and other
Total current assets

Other assets
Total assets

LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:

Accounts payable
Accrued expenses and other current liabilities
Total current liabilities

Total liabilities

Commitments and contingencies (Note 13)
Stockholders' equity:

Preferred stock, 10,000,000 shares authorized
Series B, $0.001 par value: 1,804,394 shares issued and outstanding as of December 31, 2023 and December 31,

2022

Series A, $0.001 par value: 0 and 970,000 shares issued and outstanding as of December 31, 2023 and December

31, 2022, respectively

Common stock, $0.001 par value; 10,000,000 shares authorized as of December 31, 2023 and December 31,

2022; 1,543,385 and 1,519,360 shares issued as of December 31, 2023 and December 31, 2022, respectively;
1,540,684 and 1,516,659 shares outstanding as of December 31, 2023 and December 31, 2022, respectively

Additional paid in capital
Accumulated deficit
Accumulated other comprehensive income
Treasury stock
Total stockholders' equity

Total liabilities and stockholders' equity

$

$

$

$

8,983,046   
603,828   
9,586,874   

1,018,352   
10,605,226   

240,832   
568,753   
809,585   
809,585   

1,804   

–   

1,544   
208,053,935   
(193,234,196)  
253,734   
(5,281,180)  
9,795,641   
10,605,226   

$

$

$

$

13,097,265 
556,094 
13,653,359 

1,066,931 
14,720,290 

287,360 
785,796 
1,073,156 
1,073,156 

1,804 

970 

1,520 
207,769,904 
(189,099,618)
253,734 
(5,281,180)
13,647,134 
14,720,290 

The accompanying notes are an integral part of these consolidated financial statements.

F-3

 
 
 
 
 
   
 
 
 
 
 
 
 
   
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
   
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
XENETIC BIOSCIENCES, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

FOR THE YEARS ENDED
DECEMBER 31,

2023

2022

2,539,986   
2,539,986   

$

1,706,925 
1,706,925 

(3,494,765)  
(3,560,936)  
(7,055,701)  

(4,515,715)  

25,380   
355,757   
381,137   

(4,134,578)  

(2.71)  

$

$

(4,770,834)
(3,653,999)
(8,424,833)

(6,717,908)

(1,597)
167,152 
165,555 

(6,552,353)

(4.61)

$

$

$

Revenue

Royalty revenue

Total revenue

Operating costs and expenses:
Research and development
General and administrative

Total operating costs and expenses

Loss from operations

Other income (expense):

Other income (expense)
Interest income, net
Total other income, net

Net loss

Basic and diluted net loss per share

Weighted-average shares of common stock outstanding, basic and diluted

1,528,210   

1,422,443 

The accompanying notes are an integral part of these consolidated financial statements.

F-4

 
 
 
 
 
   
 
 
 
 
 
 
 
   
 
 
 
    
  
 
 
    
 
  
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
    
 
  
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
Balance as of January 1, 2022
Issuance of common stock in connection with purchase

of in-process research and development

Exercise of purchase warrants
Share-based expense
Net loss
Balance as of December 31, 2022
Issuance of common stock to adjust for reverse split

rounding

Conversion of Series A preferred stock to shares of

common stock

Share-based expense
Net loss
Balance as of December 31, 2023

XENETIC BIOSCIENCES, INC.
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

Preferred Stock

Common Stock

Number
of
Shares
  2,774,394 

– 
– 
– 
– 
  2,774,394 

Par
Value
($0.001)

  $

2,774 

– 
– 
– 
– 
2,774 

  $

Number
of
Shares
  1,346,661 

172,500 
199 
– 
– 
  1,519,360 

Par
Value
($0.001)

  $

1,347 

Additional
Paid in
Capital
  $ 205,964,847 

173 
– 
– 
– 
1,520 

1,293,577 
– 
511,480 
– 
  $ 207,769,904 

  $

– 

– 

15,941 

16 

(16)  

(970,000)  

– 
– 
  1,804,394 

  $

(970)  
– 
– 
1,804 

8,084 
– 
– 
  1,543,385 

  $

8 
– 
– 
1,544 

962 
283,085 
– 
  $ 208,053,935 

(4,134,578)  

  $ (193,234,196)   $

The accompanying notes are an integral part of these consolidated financial statements.

F-5

  Accumulated  
Other
Comprehensive
Income

Accumulated
Deficit

  $ (182,547,265)   $

253,734 

Treasury
Stock

  $ (5,281,180)   $

Total
Stockholders'
Equity
18,394,257 

– 
– 
– 

(6,552,353)  

  $ (189,099,618)   $

– 

– 
– 

– 
– 
– 
– 
253,734 

– 

– 
– 
– 
253,734 

– 
– 
– 
– 

  $ (5,281,180)   $

– 

– 
– 
– 

  $ (5,281,180)   $

1,293,750 
– 
511,480 
(6,552,353)
13,647,134 

– 

– 
283,085 
(4,134,578)
9,795,641 

 
 
 
 
 
  
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
XENETIC BIOSCIENCES, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS

CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss

Adjustments to reconcile net loss to net cash used in operating activities:
Acquired in-process research and development
Amortization of right of use asset
Share-based expense
Changes in operating assets and liabilities:

Prepaid expenses and other
Other long-term assets
Accounts payable, accrued expenses and other liabilities

Net cash used in operating activities

CASH FLOWS FROM INVESTING ACTIVITIES:

Net cash paid to acquire in-process research and development

Net cash used in investing activities

Net change in cash
Cash at beginning of period

Cash at end of period

SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for interest

SUPPLEMENTAL SCHEDULE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:

Issuance of common stock to acquire in-process research and development
Issuance of common stock to adjust for Reverse Stock Split
Conversion of Series A preferred stock to common stock

FOR THE YEARS ENDED
DECEMBER 31,

2023

2022

$

(4,134,578)  

$

(6,552,353)

–   
–   
283,085   

(47,734)  
48,579   
(263,571)  
(4,114,219)  

–   
–   

1,793,750 
27,043 
511,480 

(103,738)
25,000 
(347,947)
(4,646,765)

(500,000)
(500,000)

(4,114,219)  
13,097,265   

(5,146,765)
18,244,030 

8,983,046   

$

13,097,265 

–   

$

– 

–   
16   
970   

$

$
$

1,293,750 
– 
– 

$

$

$

$
$

The accompanying notes are an integral part of these consolidated financial statements.

F-6

 
 
 
 
 
   
 
 
 
 
 
 
 
   
 
 
 
    
  
 
 
    
 
  
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
XENETIC BIOSCIENCES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.

The Company

Background

Xenetic  Biosciences,  Inc.  (“Xenetic”  or  the  “Company”),  incorporated  in  the  state  of  Nevada  and  based  in  Framingham,  Massachusetts,  is  a  biopharmaceutical  company
focused  on  advancing  innovative  immune-oncology  technologies  addressing  hard  to  treat  cancers.  The  Company’s  proprietary  Deoxyribonuclease  (“DNase”)  platform  is
designed to improve outcomes of existing treatments, including immunotherapies, by targeting neutrophil extracellular traps (“NETs”), which have been implicated in cancer
progression and resistance to cancer treatments. Xenetic is currently focused on advancing its systemic DNase program into the clinic as an adjunctive therapy for pancreatic
carcinoma and locally advanced or metastatic solid tumors. Additionally, Xenetic has partnered with biotechnology and pharmaceutical companies to develop its proprietary
drug delivery platform, PolyXen®, and receives royalty payments under an exclusive license arrangement in the field of blood coagulation disorders.

The  Company,  directly  or  indirectly,  through  its  wholly-owned  subsidiaries,  Hesperix  S.A.  (“Hesperix”)  and  Xenetic  Biosciences  (U.K.)  Limited  (“Xenetic  UK”),  and  the
wholly-owned subsidiaries of Xenetic UK, Lipoxen Technologies Limited (“Lipoxen”), Xenetic Bioscience, Incorporated and SymbioTec, GmbH (“SymbioTec”), own various
United  States  (“U.S.”)  federal  trademark  registrations  and  applications  along  with  unregistered  trademarks  and  service  marks,  including  but  not  limited  to  XCART,
OncoHist™, PolyXen, ErepoXen™, and ImuXen™, which are used throughout this Annual Report. All other company and product names may be trademarks of the respective
companies with which they are associated.

Going Concern and Management’s Plan

Management  evaluates  whether  there  are  conditions  or  events,  considered  in  the  aggregate,  that  raise  substantial  doubt  about  the  Company’s  ability  to  continue  as  a  going
concern within one year after the date that the financial statements are issued. The Company has incurred substantial losses since its inception and expects to continue to incur
operating  losses  in  the  near-term. These  factors  raise  substantial  doubt  about  its  ability  to  continue  as  a  going  concern. The  Company  believes  that  it  has  access  to  capital
resources through possible public or private equity offerings, debt financings, corporate collaborations, related party funding, or other means to continue as a going concern.
The Company believes that its existing resources will be adequate to fund the Company’s operations for a period of at least twelve months from the date of the issuance of these
financial statements. However, the Company anticipates it may need additional capital in the long-term to pursue its business initiatives. The terms, timing and extent of any
future financing will depend upon several factors, including the achievement of progress in its product development programs, its ability to identify and enter into licensing or
other  strategic  arrangements,  its  continued  listing  on  the  Nasdaq  Stock  Market  (“Nasdaq”),  and  factors  related  to  financial,  economic,  geo-political,  industry  and  market
conditions, many of which are beyond its control. The capital markets for the biotech industry can be highly volatile, which make the terms, timing and extent of any future
financing uncertain.

On June 3, 2022, the Company received a written notification (the “Notice”) from the Listing Qualifications Department of Nasdaq notifying the Company that the closing bid
price  for  its  common  stock  had  been  below  $1.00  for  30  consecutive  business  days  and  that  the  Company  therefore  was  not  in  compliance  with  the  minimum  bid  price
requirement for continued inclusion on Nasdaq under Nasdaq Listing Rule 5550(a)(2) (the “Bid Price Requirement”). The Notice had no immediate effect on the listing of the
Company’s common stock on the Nasdaq Capital Market. On May 15, 2023, the Company effected a reduction, on a 1-for-10 basis, in its authorized common stock, par value
$0.001, along with a corresponding and proportional decrease in the number of shares issued and outstanding (the “Reverse Stock Split”). On May 30, 2023, the Company
received a letter from Nasdaq notifying the Company that it has regained compliance with the Bid Price Requirement as a result of the closing bid price of the Company’s
common stock being at $1.00 per share or greater for the 10 consecutive business days from May 15, 2023 through May 26, 2023 and that this matter is closed.

F-7

 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
2.

Risks and Uncertainties

Impact of Global Conflicts on Operations

The short and long-term implications of Russia’s invasion of Ukraine and conflict in the Middle East are difficult to predict at this time. The imposition of current and future
sanctions and counter sanctions may have an adverse effect on the economic markets generally and could impact our business, financial condition, and results of operations.

3.

Summary of Significant Accounting Policies

Preparation of Financial Statements

On May 15, 2023, the Company effected the Reverse Stock Split. On the effective date of the Reverse Stock Split, (i) every 10 shares of common stock were reduced to one
share of common stock, with any fractional amounts rounded up to one share; (ii) the number of shares of common stock into which each outstanding warrant, restricted stock
unit, or option to purchase common stock was convertible into was proportionately reduced on the same basis as the common stock; (iii) the exercise price of each outstanding
warrant  or  option  to  purchase  common  stock  was  proportionately  increased  on  a  1-to-10  basis;  and  (iv)  the  number  of  shares  of  common  stock  into  which  each  share  of
preferred stock was convertible into was proportionately reduced on the same basis as the common stock. Unless otherwise indicated, all of the share numbers, share prices, and
exercise prices have been adjusted in this Annual Report, on a retroactive basis, to reflect this 1-for-10 Reverse Stock Split.

Principles of Consolidation

The  consolidated  financial  statements  of  the  Company  include  the  accounts  of  Hesperix,  Xenetic  UK  and  Xenetic  UK’s  wholly-owned  subsidiaries:  Lipoxen,  Xenetic
Bioscience, Incorporated, and SymbioTec. All material intercompany balances and transactions have been eliminated in consolidation.

Certain prior period amounts have been reclassified in this Annual Report to conform to the presentation for the current period.

Use of Estimates

The consolidated financial statements and accompanying notes are prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”). The preparation
of the financial statements in accordance with U.S. GAAP requires management to make estimates, judgments and assumptions that affect the reported amounts of assets and
liabilities, the reported amounts of revenue, costs and expenses in the financial statements and disclosures in the accompanying notes. Actual results and outcomes may differ
materially from management’s estimates, judgments and assumptions.

Functional Currency Change

The functional currency for the Company’s foreign subsidiaries is the U.S. dollar. The functional currency of the Company’s UK-based subsidiaries changed from the British
Pound Sterling to the U.S. dollar when the Company relocated to the U.S. in 2014. The change in functional currency was applied on a prospective basis. Therefore, any gains
and losses that were previously recorded in accumulated other comprehensive income remain unchanged.

Foreign Currency Transactions

Realized and unrealized gains and losses resulting from foreign currency transactions arising from exchange rate fluctuations on balances denominated in currencies other than
the functional currencies are recognized in “Other income (expense)” in the consolidated statements of comprehensive loss. Monetary assets and liabilities that are denominated
in a currency other than the functional currency are re-measured to the functional currency using the exchange rate at the balance sheet date and gains or losses are recorded in
the consolidated statements of comprehensive loss.

F-8

 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
Fair Value of Financial Instruments

Accounting Standards Codification (“ASC”) Topic 820, Fair Value Measurement, defines fair value as the price that would be received to sell an asset or be paid to transfer a
liability in an orderly transaction between market participants at the measurement date. The Company applies the following fair value hierarchy, which prioritizes the inputs
used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value
measurement. Level 1 inputs are quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level
2 utilizes quoted market prices in markets that are not active, broker or dealer quotations or alternative pricing sources with reasonable levels of price transparency. Level 3
inputs are unobservable inputs for the asset or liability in which there is little, if any, market activity for the asset or liability at the measurement date. As of December 31, 2023
and 2022, the carrying amount of certain of the Company’s financial instruments approximates fair value due to their short maturities. See Note 8, Fair Value Measurements,
for discussion of the Company’s fair value measurements.

Cash and Concentrations of Credit Risk

The Company considers all highly liquid investments with an original maturity of 90 days or less from the date of purchase to be cash equivalents. Investments with original
maturities of greater than 90 days from the date of purchase but less than one year from the balance sheet date are classified as short-term investments, while investments with
maturities  of  one  year  or  beyond  from  the  balance  sheet  date  are  classified  as  long-term  investments.  Management  determines  the  appropriate  classification  of  its  cash
equivalents  and  investment  securities  at  the  time  of  purchase  and  re-evaluates  such  determination  as  of  each  balance  sheet  date.  The  carrying  amount  of  cash  equivalents
approximate their fair value due to the short-term nature of these instruments.

Financial  instruments  that  potentially  subject  the  Company  to  credit  risk  consist  primarily  of  cash  on  deposit  with  financial  institutions,  the  balances  of  which  may  exceed
federally insured limits. The Company has not experienced any losses on such accounts, and does not believe it is exposed to any unusual credit risk beyond the normal credit
risk currently associated with commercial banking relationships. The Company maintains its primary banking relationship with one large financial institution and all cash on
deposit is covered under federally insured limits.

Property and Equipment

The Company records property and equipment at cost less accumulated depreciation. Expenditures for major renewals and improvements which extend the life or usefulness of
the asset are capitalized. Items of an ordinary repair or maintenance nature are charged directly to operating expense as incurred. The Company calculates depreciation using
the straight-line method over the estimated useful lives of the assets:

Asset Classification
Office and computer equipment
Leasehold improvements
Furniture and fixtures

Estimated Useful Life

3 years
5 years or the remaining term of the lease, if shorter
5 years

The Company eliminates the cost of assets retired or otherwise disposed of, along with the corresponding accumulated depreciation, from the related accounts, and the resulting
gain or loss is reflected in the results of operations.

F-9

 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
Indefinite-Lived Intangible Assets

Assets  acquired  and  liabilities  assumed  in  business  combinations,  licensing  and  other  transactions  are  generally  recognized  at  the  date  of  acquisition  at  their  respective  fair
values. At acquisition, the Company generally determines the fair value of intangible assets, including in-process research and development (“IPR&D”), using the “income
method.” Acquired IPR&D intangible assets are considered indefinite-lived intangible assets and are not amortized until completion or abandonment of the associated research
and development efforts. Substantial additional research and development may be required before the Company’s IPR&D reaches technological feasibility. Upon completion of
the IPR&D project, the IPR&D assets will be amortized over their estimated useful lives.

IPR&D is not amortized but is reviewed for impairment at least annually or when events or changes in the business environment indicate that it is more likely than not that the
carrying value may be impaired. The Company also has the option to first assess qualitative factors to determine whether the existence of events or circumstances leads the
Company to determine that it is more likely than not (that is, a likelihood of more than 50%) that the acquired IPR&D is impaired. If the Company chooses to first assess the
qualitative factors and it is determined that it is not more likely than not acquired IPR&D is impaired, the Company is not required to take further action to test for impairment.
The Company also has the option to bypass the qualitative assessment and perform only the quantitative impairment test, which the Company may choose to perform in some
periods but not in others. The impairment loss, if any, is measured as the excess of the carrying value of the intangible asset over its fair value.

Intangible assets are highly vulnerable to impairment charges, particularly newly acquired assets for IPR&D. Considering the high risk nature of research and development and
the  industry’s  success  rate  of  bringing  developmental  compounds  to  market,  IPR&D  impairment  charges  are  likely  to  occur  in  future  periods.  Estimating  the  fair  value  of
IPR&D for potential impairment is highly sensitive to changes in projections and assumptions and changes to assumptions could potentially lead to impairment. The Company
believes its estimates and assumptions are reasonable and otherwise consistent with assumptions market participants would use in their estimates of fair value. However, if
future results are not consistent with the Company’s estimates and assumptions, then the Company may be exposed to an impairment charge, which could be material. Use of
different estimates and judgments could yield materially different results in the Company’s analysis and could result in materially different asset values or expense.

Impairment of Long-Lived Assets

The Company reviews long-lived assets to be held and used, including property and equipment, for impairment whenever events or changes in circumstances indicate that the
carrying amount of the assets or asset group may not be fully recoverable.

Evaluation  of  recoverability  is  based  on  an  estimate  of  undiscounted  future  cash  flows  resulting  from  the  use  of  the  asset  or  asset  group  and  its  eventual  disposition.
Impairment, if any, is calculated as the amount by which an asset’s carrying value exceeds its fair value, typically using discounted cash flows to determine fair value. No such
impairments were recorded during the years ended December 31, 2023 and 2022.

Revenue Recognition

The Company enters into supply, license and collaboration arrangements with pharmaceutical and biotechnology partners, some of which include royalty agreements based on
potential net sales of approved commercial pharmaceutical products.

The  Company  recognizes  revenue  in  accordance  with ASC  Topic  606,  Revenue  from  Contracts  with  Customers  (“ASC  606”).  This  standard  applies  to  all  contracts  with
customers, except for contracts that are within the scope of other standards, such as leases, insurance, collaboration arrangements and financial instruments. Under ASC 606, an
entity recognizes revenue when its customer obtains control of promised goods or services, in an amount that reflects the consideration which the entity expects to receive in
exchange for those goods or services. To determine revenue recognition for arrangements that an entity determines are within the scope of ASC 606, the entity performs the
following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the
transaction price to the performance obligations in the contract; and (v) recognize revenue at a point in time, or over time, as it satisfies a performance obligation. The Company
only applies the five-step model to contracts when it is probable that it will collect the consideration it is entitled to in exchange for the goods or services it transfers to the
customer. At contract inception, once the contract is determined to be within the scope of ASC 606, the Company assesses the goods or services promised within each contract,
determines those that are performance obligations and assesses whether each promised good or service is distinct. The Company then recognizes as revenue the amount of the
transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied.

F-10

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
As  part  of  the  accounting  for  these  arrangements,  the  Company  must  use  significant  judgment  to  determine:  a)  the  number  of  performance  obligations  based  on  the
determination under step (ii) above; b) the transaction price under step (iii) above; and c) the stand-alone selling price for each performance obligation identified in the contract
for the allocation of transaction price in step (iv) above. The Company uses judgment to determine whether milestones or other variable consideration should be included in the
transaction  price  as  described  further  below.  The  transaction  price  is  allocated  to  each  performance  obligation  on  a  relative  stand-alone  selling  price  basis,  for  which  the
Company recognizes revenue as or when the performance obligations under the contract are satisfied. In developing the stand-alone price for a performance obligation, the
Company considers applicable market conditions and relevant entity-specific factors, including factors that were contemplated in negotiating the agreement with the customer
and estimated costs. The Company validates the stand-alone selling price for performance obligations by evaluating whether changes in the key assumptions used to determine
the stand-alone selling prices will have a significant effect on the allocation of transaction price between multiple performance obligations. The Company recognizes a contract
asset  or  liability  for  the  difference  between  the  Company’s  performance  (i.e.,  the  goods  or  services  transferred  to  the  customer)  and  the  customer’s  performance  (i.e.,  the
consideration paid by, and unconditionally due from, the customer).

The terms of the Company’s license agreements may include delivery of an IP license to a collaboration partner. The Company may be compensated under license arrangements
through a combination of non-refundable upfront receipts, development and regulatory objective receipts and royalty receipts on future product sales by partners. The Company
anticipates recognizing non-refundable upfront license payments and development and regulatory milestone payments received by the Company in license and collaboration
arrangements  that  include  future  obligations,  such  as  supply  obligations,  ratably  over  the  Company’s  expected  performance  period  under  each  respective  arrangement. The
Company  makes  its  best  estimate  of  the  period  over  which  the  Company  expects  to  fulfill  the  Company’s  performance  obligations,  which  may  include  technology  transfer
assistance,  research  activities,  clinical  development  activities,  and  manufacturing  activities  from  development  through  the  commercialization  of  the  product.  Given  the
uncertainties of these collaboration arrangements, significant judgment is required to determine the duration of the performance period.

When  the  Company  enters  into  an  arrangement  to  sublicense  some  of  its  patents,  it  will  consider  the  performance  obligations  to  determine  if  there  is  a  single  element  or
multiple elements to the arrangement as it determines the proper method and timing of revenue recognition. The Company considers the terms of the license or sublicense for
such elements as price adjustments or refund clauses in addition to any performance obligations for it to provide such as services, patent defense costs, technology support,
marketing  or  sales  assistance  or  any  other  elements  to  the  arrangement  that  could  constitute  an  additional  deliverable  to  it  that  could  change  the  timing  of  the  revenue
recognition. Non-refundable upfront license and sublicense fees received, whereby continued performance or future obligations are considered inconsequential or perfunctory
to the relevant licensed technology, are recognized as revenue upon delivery of the technology.

The Company expects to recognize royalty revenue in the period of sale, based on the underlying contract terms, provided that the reported sales are reliably measurable, the
Company has no remaining performance obligations, and all other revenue recognition criteria are met. The Company anticipates reimbursements for research and development
services  completed  by  the  Company  related  to  the  collaboration  agreements  to  be  recognized  in  operations  as  revenue  on  a  gross  basis.  The  Company’s  license  and
collaboration  agreements  with  certain  collaboration  partners  could  also  provide  for  future  milestone  receipts  to  the  Company  based  solely  upon  the  performance  of  the
respective collaboration partner in consideration of deadline extensions or upon the achievement of specified sales volumes of approved drugs. For such receipts, the Company
expects to recognize the receipts as revenue when earned under the applicable contract terms on a performance basis or ratably over the term of the agreement. These receipts
may also be recognized as revenue when continued performance or future obligations by the Company are considered inconsequential or perfunctory.

See also Note 4, Significant Strategic Collaborations.

F-11

 
 
   
 
 
  
 
 
 
 
 
 
Research and Development Expenses

Research and development expenses consist of expenses incurred in performing research and development activities, including compensation and benefits, facilities expenses,
overhead  expenses,  pre-clinical  development,  clinical  trial  and  related  clinical  manufacturing  expenses,  fees  paid  to  contract  research  organizations  (“CROs”)  and  contract
manufacturing organizations (“CMOs”) and other outside expenses. The Company expenses research and development costs as incurred. The Company expenses upfront, non-
refundable  payments  made  for  research  and  development  services  as  obligations  are  incurred.  The  value  ascribed  to  intangible  assets  acquired  but  which  have  not  met
capitalization criteria is expensed as research and development at the time of acquisition. Upfront payments under license agreements are expensed upon receipt of the license.
Milestone payments under license agreements are accrued, with a corresponding expense being recognized, in the period in which the milestone is determined to be probable of
achievement and the related amount is reasonably estimable.

The Company is required to estimate accrued research and development expenses at each reporting period. This process involves reviewing open contracts and purchase orders,
communicating  with  Company  personnel  to  identify  services  that  have  been  performed  on  its  behalf  and  estimating  the  level  of  service  performed  and  the  associated  cost
incurred for the service when the Company has not yet been invoiced or otherwise notified of actual costs. The majority of the Company’s service providers invoice in arrears
for services performed, on a pre-determined schedule or when contractual milestones are met. However, some require advanced payments. The Company makes estimates of
accrued  expenses  as  of  each  balance  sheet  date  in  the  financial  statements  based  on  facts  and  circumstances  known  at  that  time.  The  Company  periodically  confirms  the
accuracy of the estimates with the service providers and makes adjustments, if necessary. Examples of estimated accrued research and development expenses include fees paid
to:

·
·
·
·
·

Collaborative partners performing research and development and pre-clinical activities;
Program managers in connection with overall program management of clinical trials;
CMOs in connection with cGMP manufacturing;
CROs in connection with clinical trials; and
Investigative sites in connection with clinical trials.

The  Company  bases  its  expenses  related  to  research  and  development,  pre-clinical  activities,  manufacturing  and  clinical  trials  on  its  estimates  of  the  services  received  and
efforts expended pursuant to quotes and contracts with multiple research institutions, CMOs and CROs that conduct and manage clinical trials on the Company’s behalf. The
financial  terms  of  these  agreements  are  subject  to  negotiation,  vary  from  contract  to  contract  and  may  result  in  uneven  payment  flows.  There  may  be  instances  in  which
payments made to vendors will exceed the level of services provided and result in a prepayment of the expense. In accruing service fees, the Company estimates the time period
over which services will be performed and the level of effort to be expended in each period. If the actual timing of the performance of services or the level of effort varies from
the estimate, the Company adjusts the accrual or prepaid accordingly. Although it does not expect its estimates to be materially different from amounts actually incurred, the
Company’s understanding of the status and timing of services performed relative to the actual status and timing of services performed may vary and may result in reporting
amounts that are too high or too low in any particular period. To date, there have not been any material adjustments to the Company’s prior estimates of accrued research and
development expenses. The Company has recorded approximately $0.5 million and $0.3 million of prepayments as a component of prepaid expenses and other current assets as
of  December  31,  2023  and  2022,  respectively.  In  addition,  the  Company  had  recorded  accrued  program  expense  of  approximately  $0.1  million  as  a  component  of  accrued
expenses as of each of December 31, 2023 and 2022.

Share-based Expense

The Company grants share-based payments in the form of options and restricted stock units (“RSUs”) to employees and non-employees to purchase shares of the Company’s
common stock, Joint Share Ownership Plan (“JSOP”) awards to employees and agreements to issue common stock in exchange for services provided by non-employees.

Share-based expense is based on the estimated fair value of the option or calculated using the Black-Scholes option pricing model. Determining the appropriate fair value model
and related assumptions requires judgment, including estimating share price volatility and expected terms of the awards. The expected volatility rates are estimated based on the
historical volatility of the Company. To the extent Company data is not available for the full expected term of the awards the Company uses a weighted-average of the historical
volatility of the Company and of a peer group of comparable publicly traded companies over the expected term of the option. The expected term represents the time that options
are expected to be outstanding. The Company accounts for forfeitures as they occur and not at the time of grant. The Company has not paid dividends and does not anticipate
paying  cash  dividends  in  the  foreseeable  future  and,  accordingly,  uses  an  expected  dividend  yield  of  zero.  The  risk-free  interest  rate  is  based  on  the  rate  of  U.S.  Treasury
securities  with  maturities  consistent  with  the  estimated  expected  term  of  the  awards.  Upon  exercise,  stock  options  are  redeemed  for  newly  issued  shares  of  common  stock.
RSUs are redeemed for newly issued shares of common stock as the vesting and settlement provisions of the grant are met.

F-12

 
 
 
  
 
 
 
 
 
  
 
 
 
 
 
 
 
 
For employee options that vest based solely on service conditions, the fair value measurement date is generally on the date of grant and the related compensation expense is
recognized  on  a  straight-line  basis  over  the  requisite  vesting  period  of  the  awards.  For  non-employee  options  issued  in  exchange  for  goods  or  services  consumed  in  the
Company’s operations, the fair value measurement date is the earlier of the date the performance of services is complete or the date the performance commitment has been
reached. The  Company  generally  determines  that  the  fair  value  of  the  stock  options  is  more  reliably  measurable  than  the  fair  value  of  the  services  received.  Compensation
expense related to stock options granted to non-employees is recognized on a straight-line basis over requisite vesting periods of the awards.

Warrants

In connection with certain financing, consulting and collaboration arrangements, the Company has issued warrants to purchase shares of its common stock. The outstanding
warrants are standalone instruments that are not puttable or mandatorily redeemable by the holder and are classified as equity awards. The Company measures the fair value of
the awards using the Black-Scholes option pricing model as of the measurement date. Warrants issued to collaboration partners in conjunction with the issuance of common
stock are initially recorded at fair value as a reduction in additional paid-in capital of the common stock issued. All other warrants are recorded at fair value as expense on a
straight-line  basis  over  the  requisite  service  period  or  at  the  date  of  issuance  if  there  is  not  a  service  period  or  if  service  has  already  been  rendered.  Warrants  granted  in
connection with ongoing arrangements are more fully described in Note 10, Stockholders’ Equity.

Income Taxes

The  Company  accounts  for  income  taxes  using  the  asset  and  liability  method.  Under  this  method,  deferred  tax  assets  and  liabilities  are  determined  based  on  temporary
differences  resulting  from  the  different  treatment  of  items  for  tax  and  financial  reporting  purposes.  Deferred  tax  assets  and  liabilities  are  measured  using  enacted  tax  rates
expected  to  apply  to  taxable  income  in  the  years  in  which  those  temporary  differences  are  expected  to  reverse. Additionally,  the  Company  must  assess  the  likelihood  that
deferred tax assets will be recovered as deductions from future taxable income. The Company evaluates the recoverability of its deferred tax assets on a quarterly basis.

Basic and Diluted Net Loss per Share

The Company computes basic net loss per share by dividing net loss applicable to common stockholders by the weighted-average number of shares of the Company’s common
stock outstanding during the period. The Company computes diluted net loss per share after giving consideration to the dilutive effect of stock options that are outstanding
during the period, except where such non-participating securities would be anti-dilutive. The Company’s JSOP awards, prior to exercise, are considered treasury shares by the
Company and thus do not impact the Company’s net loss per share calculation.

For the years ended December 31, 2023 and 2022, basic and diluted net loss per share are the same for each year due to the Company’s net loss position. Potentially dilutive,
non-participating securities have not been included in the calculations of diluted net loss per share, as their inclusion would be anti-dilutive. As of December 31, 2023 and 2022,
approximately 5,000 potentially dilutive securities were deemed anti-dilutive for each period.

Segment Information

Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision
maker,  who  is  the  Company’s  Chief  Executive  Officer,  in  making  decisions  on  how  to  allocate  resources  and  assess  performance.  The  Company  views  its  operations  and
manages its business in one operating segment.

F-13

 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
Leases

The Company leases administrative facilities under operating leases. Lease agreements may include rent holidays, rent escalation clauses and tenant improvement allowances.
The Company recognizes a lease liability and a right-of-use asset for all leases, with the exception of short-term leases, at the commencement date. See Note 13, Commitments
and Contingencies for further information.

Acquisitions

The Company has a history of engaging in acquisition transactions that require the Company to evaluate whether the transaction meets the criteria of a business combination. If
the transaction does not meet the business combination requirements, the transaction is accounted for as an asset acquisition or recapitalization and no goodwill is recognized. If
the acquisition meets the definition of a business combination, the Company allocates the purchase price, including any contingent consideration, to the assets acquired and the
liabilities assumed at their estimated fair values as of the date of the acquisition with any excess of the purchase price paid over the estimated fair value of net assets acquired
recorded as goodwill. The fair value of the assets acquired and liabilities assumed is typically determined by using either estimates of replacement costs or discounted cash flow
valuation methods.

When determining the fair value of tangible assets acquired, the Company estimates the cost to replace the asset with a new asset, taking into consideration such factors as age,
condition  and  the  economic  useful  life  of  the  asset.  When  determining  the  fair  value  of  intangible  assets  acquired,  the  Company  uses  judgment  to  estimate  the  applicable
discount rate, growth rates and the timing and amount of future cash flows. The fair value of assets acquired and liabilities assumed is typically determined using the assistance
of an independent third-party specialist.

Business combination related costs are expensed in the period in which the costs are incurred. Asset acquisition related costs are generally capitalized as a component of cost of
the assets acquired.

Recent Accounting Standards

In  June  2016,  the  Financial  Accounting  Standards  Board  issued  Accounting  Standards  Update  (“ASU”)  2016-13,  Financial  Instruments  –  Credit  Losses  (Topic  326):
Measurement of Credit Losses on Financial Instruments. The guidance modified the measurement and recognition of credit losses for most financial assets and certain other
instruments. The amendment updated the guidance for measuring and recording credit losses on financial assets measured at amortized cost by replacing the “incurred loss”
model  with  an  “expected  loss”  model.  This  may  result  in  earlier  recognition  of  allowance  for  losses.  The  Company  adopted ASU  2016-13  as  of  January  1,  2023  and  the
adoption did not have a material effect on our consolidated financial statements.

4.

Significant Strategic Collaborations

Takeda Pharmaceutical Co. Ltd. ( together with its wholly-owned subsidiaries, “Takeda”)

In  October  2017,  the  Company  granted  to  Takeda  the  right  to  grant  a  non-exclusive  sublicense  to  certain  patents  related  to  the  Company’s  PolyXen  technology  that  were
previously exclusively licensed to Takeda in connection with products related to the treatment of blood and bleeding disorders. Royalty payments of approximately $2.5 million
and $1.7 million were recorded as revenue by the Company during the years ended December 31, 2023 and 2022, respectively, and are based on single digit royalties on net
sales of certain covered products. The Company’s policy is to recognize royalty payments as revenue when they are reliably measurable, which is upon receipt of reports from
Takeda.  The  Company  receives  these  reports  in  the  quarter  subsequent  to  the  actual  sublicensee  sales.  At  the  time  the  revenue  was  received,  there  were  no  remaining
performance obligations and all other revenue recognition criteria were met.

F-14

 
 
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
Catalent Pharma Solutions LLC (“Catalent”)

On June 30, 2022, the Company entered into a Statement of Work (the “SOW”) with Catalent to outline the general scope of work, timeline, and pricing pursuant to which
Catalent will provide certain services to the Company to perform cGMP manufacturing of the Company’s recombinant protein, Human DNase I. The parties agreed to enter into
a Master Services Agreement (“MSA”) that will contain terms and conditions to govern the project contemplated by the SOW and that will supersede the addendum to the
SOW containing Catalent’s standard terms and conditions. In addition, in the event of any conflict between the project-specific terms and conditions set forth in the SOW and
the MSA, the MSA terms and conditions shall govern. The estimated total cost of the project contemplated by the SOW was expected to be up to approximately $5 million
(exclusive of certain fees and potential alternatives) for the manufacturing services over the course of the term of the project with each phase of the project invoiced separately
in connection with the commencement of such phase. The Company has paid Catalent approximately $2.5 million through December 31, 2023, of which $0.1 million has been
recognized as an advance payment and is included in prepaid expenses and other current assets and $0.3 million has been recognized within other assets as of December 31,
2023. As of December 31, 2022, approximately $0.3 million had been recorded as an advance payment and was included in prepaid expenses and other current assets.

Scripps Research

On March 17, 2023, the Company and Scripps Research entered into a Research Funding and Option Agreement (the “Agreement”), pursuant to which the Company has agreed
to provide Scripps Research an aggregate of up to $938,000 to fund research relating to advancing the pre-clinical development of the Company’s DNase oncology platform
technology. The research funding is payable by the Company to Scripps Research on a monthly basis in accordance with a negotiated budget, which provides for an initial
payment of approximately $78,000 on the date of the Agreement and subsequent monthly payments of approximately $78,000 over a 12-month period. Under the Agreement,
the Company has the option to acquire a worldwide exclusive license to Scripps Research’s rights in the Technology or Patent Rights (as defined in the Agreement), as well as a
non-exclusive,  royalty-free,  non-transferrable  license  to  make  and  use TSRI Technology  (as  defined  in  the Agreement)  solely  for  the  Company’s  internal  research  purposes
during the performance of the research program contemplated by the Agreement.

Unless earlier terminated, the term of the Agreement continues from the date of the Agreement for fifteen (15) months. The Agreement may be terminated by the Company with
30 days advance written notice to Scripps Research beginning six (6) months after the Effective Date (as defined in the Agreement) or by Scripps Research if the Company fails
to make timely payments due under the Agreement, subject to 30 days’ written notice to cure such nonpayment. The Agreement may further be terminated by either party in the
event of the other party’s uncured failure to perform any obligations under the Agreement or the bankruptcy of the other party.

The  Company  has  paid  Scripps  Research  approximately  $0.8  million  under  the  Agreement  through  December  31,  2023,  of  which  approximately  $0.4  million  has  been
recognized as an advance payment and is included in prepaid expenses and other current assets as of December 31, 2023.

University of Virginia (“UVA”)

On December 21, 2023, the Company entered into a Research Funding and Material Transfer Agreement with UVA (the “UVA Agreement”) to advance the development of our
systemic DNase program. Under the terms of the UVA Agreement, in addition to advancing our existing intellectual property, we have an option to acquire an exclusive license
to  any  new  intellectual  property  arising  from  the  DNase  research  program.  Allan  Tsung,  MD,  a  member  of  the  Company’s  Scientific  Advisory  Board  and  Chair  of  the
Department of Surgery at the UVA School of Medicine, will oversee the research conducted under the UVA Agreement. As a surgical oncologist and scientist, Dr. Tsung is
internationally recognized for leading substantial research on the role of NETs in tumor growth, metastasis, and resistance to existing cancer therapies.

F-15

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
PJSC Pharmsynthez

In November 2009, the Company entered into a collaborative research and development license agreement with Pharmsynthez (the “Pharmsynthez Arrangement”) pursuant to
which the Company granted an exclusive license to Pharmsynthez to develop, commercialize and market six product candidates based on the Company’s PolyXen and ImuXen
technology in certain territories. In exchange, Pharmsynthez granted an exclusive license to the Company to use any preclinical and clinical data developed by Pharmsynthez,
within the scope of the Pharmsynthez Arrangement, and to engage in further research, development and commercialization of drug candidates outside of certain territories at the
Company’s own expense.

Pharmsynthez directly, and indirectly through its wholly-owned subsidiary, SynBio, LLC (“SynBio”), had a share ownership in the Company of approximately 3.4% and 2.9%
of the total outstanding common stock as of December 31, 2023 and 2022, respectively. In addition to its common stock ownership, Pharmsynthez owns approximately 1.5
million shares of our outstanding Series B Preferred Stock (as defined in Note 10, Stockholders’ Equity.)

In August  2011,  SynBio  and  the  Company  entered  into  a  stock  subscription  and  collaborative  development  agreement  (the  “Co-Development Agreement”).  The  Company
granted an exclusive license to SynBio to develop, market and commercialize certain drug candidates utilizing molecules based on SynBio’s technology and the Company’s
proprietary technologies (PolyXen, OncoHist and ImuXen) in Russia and CIS, collectively referred to herein as the SynBio Market. In return, SynBio granted an exclusive
license to the Company to use the preclinical and clinical data generated by SynBio in certain agreed products and to engage in the development of commercial candidates in
any territory outside of the SynBio Market.

SynBio  is  solely  responsible  for  funding  and  conducting  their  own  research  and  clinical  development  activities. There  are  no  milestone  or  other  research-related  payments
provided  for  under  the  Co-Development Agreement  other  than  fees  for  the  supply  of  each  company’s  respective  research  supplies  based  on  their  technology,  which,  when
provided, are due to mutual convenience and not representative of an ongoing or recurring obligation to supply research supplies. Upon successful commercialization of any
resultant products, the Company is entitled to receive a 10% royalty on sales in certain territories and pay royalties to SynBio for sales outside those certain territories, subject
to the terms of the Co-Development Agreement. Effective December 20, 2021, SynBio assigned the Co-Development Agreement to Pharmsynthez.

Through  December  31,  2023,  Pharmsynthez  continued  to  engage  in  research  and  development  activities  with  no  resultant  commercial  products.  In  December  2020,
Pharmsynthez  reported  positive  data  from  its  Phase  3  clinical  study  of  Epolong,  a  treatment  for  anemia  in  patients  with  chronic  kidney  disease  leveraging  the  Company’s
PolyXen technology. In February 2021, Pharmsynthez reported in a press release that it had started the registration phase of Epolong by filing a registration dossier to obtain
approval in Russia. Pharmsynthez had reported in its press release that it expected that the Russian stage of registration activities would be completed in 2021 and that it would
be able to start production of the product as early as the first quarter of 2022. Pharmsynthez has informed the Company that it has received a response letter indicating certain
deficiencies  in  the  dossier  and  continues  to  develop  a  gap  mitigation  strategy  with  the  intent  of  refiling  the  registration  upon  correction.  The  Company  did  not  recognize
revenue in connection with the Co-Development Agreement during the years ended December 31, 2023 and 2022.

Serum Institute of India Limited

In August 2011, the Company entered into a collaborative research and development agreement with Serum Institute of India Limited (“Serum Institute”) providing Serum
Institute  an  exclusive  license  to  use  the  Company’s  PolyXen  technology  to  research  and  develop  one  potential  commercial  product,  Polysialylated  Erythropoietin.  Serum
Institute is responsible for conducting all preclinical and clinical trials required to achieve regulatory approvals within the certain predetermined territories at Serum Institute’s
own expense. Royalty payments are payable by Serum Institute to the Company for net sales to certain customers in the Serum Institute sales territory. There are no milestone
or other research-related payments due under the collaborative arrangement.

Through December 31, 2023, no commercial products were developed and no royalty revenue or expense was recognized by the Company related to the arrangement. Serum
Institute had a share ownership of less than 1% of the total outstanding common stock of the Company as of each of December 31, 2023 and 2022.

F-16

 
 
 
 
  
 
   
 
 
 
 
 
 
 
 
5.

Licensing Arrangements

Exclusive Sublicense Agreement 

On April 26, 2022, the Company entered into an Exclusive Sublicense Agreement (the “Sublicense Agreement”) with CLS Therapeutics Ltd. (“CLS”) pursuant to which the
Company received an exclusive license, under certain patent rights and know-how owned or controlled by CLS, to develop and commercialize pharmaceutical products and
methods incorporating DNase enzyme for use in treatment of cancer (the “Sublicensed Products”). Under the terms of the Sublicense Agreement, the Company will have sole
responsibility for, and shall use commercially reasonable efforts to, among other things, research, develop and obtain marketing approval for the Sublicensed Products in the
U.S. and certain European markets, and to commercialize such Sublicensed Products in the relevant market once marketing approval is obtained.

In consideration for the license and other rights granted to the Company under the Sublicense Agreement, the Company issued to CLS 37,500 shares of the Company’s common
stock (the “Sublicense Agreement Shares”), of which 25,000 Sublicense Agreement Shares were issued directly to OPKO Health, Inc. (“OPKO”) in lieu of transfer indirectly
from  CLS  to  EirGen  Pharma  Ltd.  (“EirGen”),  a  wholly  owned  subsidiary  of  OPKO,  in  satisfaction  of  certain  third-party  contractual  obligations  between  CLS  and  EirGen.
Additionally,  the  Company  is  obligated  to  pay  to  CLS  up  to  $13,000,000  in  cash  in  potential  milestone  payments  for  the  achievement  of  certain  clinical  and  regulatory
milestones, as well as issue an additional 95,000 shares of the Company’s common stock to CLS based on the achievement of certain regulatory milestones. In addition, the
Company is obligated to pay tiered royalties ranging from the mid-single to low-double digits on net sales of licensed products falling within the scope of the license during the
Royalty Term (as defined in the Sublicense Agreement), as well as pay a percentage share in the low-to-mid teens of certain consideration received by the Company from any
sublicensees.

Exclusive License Agreement

On April 26, 2022, the Company entered into an Exclusive License Agreement (the “License Agreement”) with CLS, pursuant to which the Company received an exclusive
license under certain patent rights and know-how owned or controlled by CLS to develop and commercialize pharmaceutical products and methods incorporating DNase in
conjunction  with  CAR  T  therapies  (the  “Licensed  Products”).  Under  the  terms  of  the  License  Agreement,  the  Company  will  have  sole  responsibility  for,  and  shall  use
commercially reasonable efforts to, among other things, research, develop and obtain marketing approval for the Licensed Products in the U.S. and certain European markets,
and to commercialize such Licensed Products in the relevant market once marketing approval is obtained.

In consideration for the license and other rights granted to the Company under the License Agreement, the Company paid CLS a one-time fee of $500,000 in cash, issued to
CLS 50,000 shares of the Company’s common stock, and is obligated to pay up to $13,000,000 in cash in potential milestone payments for the achievement of certain clinical
and regulatory milestones for each Licensed Product. In addition, the Company is obligated to pay tiered royalties ranging from the mid-single to low-double digits on net sales
of licensed products falling within the scope of the license during the Royalty Term (as defined in the License Agreement), as well as pay a percentage share in the mid-teens to
low double digits of certain consideration received by the Company from any sublicensees.

The total consideration for the Sublicense and License Agreements was approximately $1.3 million, which consisted of a $0.5 million cash payment and the fair value of the
87,500 common shares issued of $0.8 million utilizing the closing market price of the Company’s stock price at the closing date. As there was no future alternative use for the
sublicense and license, the Company recorded an expense of $1.3 million to research and development expense during the year ended December 31, 2022. No milestone or
other contingent consideration was recognized in 2023 and 2022 as there were no development, regulatory or sales milestones that were probable of being achieved as of each
of December 31, 2023 and December 31, 2022.

F-17

 
 
 
 
 
 
 
 
 
 
 
 
 
Patent Assignment and Volition Collaboration

On August  2,  2022,  the  Company  announced  a  research  and  development  collaboration  with Volition  to  develop  NETs-targeted  adoptive  cell  therapies  for  the  treatment  of
cancer. The collaboration is an early exploratory program to evaluate the potential combination of Volition’s Nu.Q® technology Test and the Company’s DNase-Armored CAR
T platform to develop proprietary adoptive cell therapies potentially targeting multiple types of solid cancers. Under the terms of the collaboration agreement, Volition will fund
a research program and the two parties will share proceeds from commercialization or licensing of any products arising from the collaboration. On July 10, 2023, the Company
entered into the first Collaborator Statement of Work as part of this collaboration with Volition. Volition has funded approximately $0.1 million under this research program
through December 31, 2023. The Company has recorded this funding as a reduction in research and development costs during the year ended December 31, 2023.

On October 4, 2022, the Company completed a patent assignment related to its collaboration with Belgian Volition SARL Limited (“Volition”) and CLS. In connection with the
patent  assignment,  the  Company  entered  into  a  Subscription Agreement  with  CLS Therapeutics,  LLC,  a  Delaware  limited  liability  company  (“CLS  LLC  ”)  on  October  12,
2022, pursuant to which the Company agreed to issue to CLS LLC, and CLS LLC agreed to subscribe for, 85,000 shares of the Company’s common stock (the “Shares”) as
consideration for the assignment by CLS and its affiliates to the Company of certain patent rights owned by CLS and its affiliates.

The total consideration for the patent assignment was approximately $0.5 million, representing the fair value of the 85,000 common shares issued utilizing the closing market
price of the Company’s stock price at the closing date. As there was no future alternative use for the patent rights, the Company recorded an expense of approximately $0.5
million to research and development expense for the year ended December 31, 2022. No milestone or other contingent consideration was recognized in 2023 and 2022 as there
were no development, regulatory or sales milestones that were probable of being achieved as of each of December 31, 2023 and 2022.

As of December 31, 2023 and 2022, CLS owned approximately 9.6% of the Company’s common stock. The Company incurred approximately $0.4 million of transaction costs
in connection with the licensing of the DNase technology for the year ended December 31, 2022.

6.

Other Assets

In 2016, the Company entered into an agreement with Serum Institute for the prepayment of clinical PSA supply in exchange for the Company’s common stock. As of each of
December 31, 2023 and 2022, the Company has classified $0.7 million of prepaid clinical supply as long-term as it does not anticipate utilizing the majority of the PSA supply
within the next 12 months. No clinical supply was utilized during the years ended December 31, 2023 and 2022.

See also Note 14, Related Party Transactions for a description of the Pharmsynthez Loan.

7.

Accrued Expenses

Accrued expenses consist of the following: 

Accrued payroll and benefits
Accrued professional fees
Accrued research costs
Other

December 31,
2023

December 31,
2022

$

$

216,547   
233,950   
70,000   
48,256   
568,753   

$

$

353,539 
288,808 
103,500 
39,949 
785,796 

F-18

 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
8.

Fair Value Measurements

ASC Topic 820, Fair Value Measurement, defines fair value as the price that would be received to sell an asset or be paid to transfer a liability in an orderly transaction between
market participants at the measurement date. The Company applies the following fair value hierarchy, which prioritizes the inputs used to measure fair value into three levels
and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement. Level 1 inputs are quoted prices
in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2 utilizes quoted market prices in markets that
are not active, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency. Level 3 inputs are unobservable inputs for the asset or
liability in which there is little, if any, market activity for the asset or liability at the measurement date. As of December 31, 2023 and December 31, 2022, the carrying amounts
of the Company’s financial instruments approximate fair value due to their short maturities. There were no financial instruments classified as Level 3 in the fair value hierarchy
during the years ended December 31, 2023 and 2022.

9.

Income Taxes

Deferred  tax  assets  and  liabilities  are  determined  based  on  temporary  differences  resulting  from  the  different  treatment  of  items  for  tax  and  financial  reporting  purposes.
Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to
reverse. Additionally, the Company must assess the likelihood that deferred tax assets will be recovered as deductions from future taxable income. The Company has provided a
full valuation allowance on the Company’s deferred tax assets because the Company believes it is more likely than not that its deferred tax assets will not be realized. The
Company evaluates the recoverability of its deferred tax assets on a quarterly basis. There was no income tax provision (benefit) for the years ended December 31, 2023 and
2022, as the Company has incurred losses to date.

The components of loss before income taxes are as follows:

Domestic (U.S.)
Foreign (U.K.)
Foreign (Germany)
Foreign (Switzerland)
Loss before income taxes

Year ended December 31,

2023

2022

$

$

(6,424,969)  
2,440,857   
(136,977)  
(13,489)  
(4,134,578)  

$

$

(7,905,676)
1,488,938 
(124,279)
(11,336)
(6,552,353)

The reconciliation of income tax benefit at the U.S. corporation tax rate, being the rate applicable to the country of domicile of the Company to net income tax benefit, is as
follows:

Federal
State
Change in valuation allowance
Permanent differences, net
Foreign rate differential
Share-based expense, net
Enhanced research and development tax credits
Rate change
Other items
Net benefit for income taxes

Year ended December 31,

2023

2022

(868,261)  
(373,684)  
1,116,036   
271,546   
81,227   
7,213   
(238,631)  
–   
4,554   
–   

$

$

(1,375,995)
(476,802)
7,233,525 
197,151 
(39,041)
19,087 
(109,792)
(5,120,196)
(327,937)
– 

$

$

F-19

 
 
 
 
 
 
 
    
  
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Deferred tax assets and liabilities reflect the net tax effect of temporary differences between the carrying amount of assets and liabilities for financial reporting purposes and the
amounts used for income tax purposes. Significant components of the Company’s deferred tax assets are as follows:

Deferred tax assets:

U.K. net operating loss carryforwards
U.K. capital loss carryforwards
U.S. federal net operating loss carryforwards
Switzerland net operating loss carryforwards
IPR&D
Share-based expense
Enhanced research and development tax credits
Germany net operating loss carryforwards
Capitalized research and experimental expenditure
U.S. state net operating loss carryforwards
Other
Lease liability

Total deferred tax assets before valuation allowance
Valuation allowance for deferred tax assets

Net deferred tax assets

Deferred tax liabilities:

Right of use asset – leases
Total deferred tax liabilities

Net deferred liability

Year ended December 31,

2023

2022

$

14,664,858   
1,545,934   
6,573,614   
23,868   
8,066,098   
2,235,214   
2,038,421   
693,007   
1,473,049   
2,142,380   
250,669   
–   
39,707,112   
(39,707,112)  
–   

–   
–   
–   

$

14,812,743 
1,545,934 
6,085,858 
22,722 
8,546,593 
2,169,480 
1,820,269 
627,780 
735,702 
1,913,128 
288,887 
– 
38,569,096 
(38,569,096)
– 

– 
– 
– 

$

$

For the years ended December 31, 2023 and 2022, the Company had U.K. net operating loss carryforwards of approximately $61.3 million and $61.9 million, respectively, U.S.
federal  net  operating  loss  carryforwards  of  approximately  $31.3  million  and  $29.0  million,  respectively,  U.S.  state  net  operating  loss  carryforwards  of  approximately  $33.9
million and $30.3 million, respectively, Germany net operating loss carryforwards of approximately $2.2 million and $2.0 million, respectively, and Switzerland net operating
loss carryforwards of approximately $0.3 million and $0.3 million, respectively. The U.K. and Germany net operating loss carryforwards can be carried forward indefinitely.
$17.9 million of the U.S. federal net operating loss carryforwards can be carried forward indefinitely, and the remaining U.S. federal and state net operating loss carryforwards
begin to expire in 2031. The Switzerland net operating loss carryforwards begin to expire in 2026.

The Company’s ability to use its operating loss carryforwards and tax credits generated in the U.S. to offset future taxable income is subject to restrictions under Section 382 of
the  U.S.  Internal  Revenue  Code  (the  “Code”).  These  restrictions  may  limit  the  future  use  of  the  operating  loss  carryforwards  and  tax  credits  if  certain  ownership  changes
described in the Code occur. Future changes in stock ownership may occur that would create further limitations on the Company’s use of the operating loss carryforwards and
tax credits. In such a situation, the Company may be required to pay income taxes, even though significant operating loss carryforwards and tax credits exist.

The Company’s ability to use its operating loss carryforwards and tax credits generated in the U.K. are subject to restrictions under U.K. tax legislation. These regulations may
limit the future use of operating loss carryforwards (i) if there is a change in ownership and a change in the nature or conduct of the business carried on by the Company, and
(ii) in certain circumstances where there is a change in the nature or conduct of the business only. In such cases the carryforwards would cease to be available to set against
future income.

The Company’s ability to use its operating loss carryforwards and tax credits generated in Germany and Switzerland are also subject to restrictions under German and Swiss tax
legislation. These regulations may limit the future use of operating loss carryforwards if there is a change in ownership. In such cases the carryforwards would cease to be
available to set against future income.

F-20

 
 
 
    
  
 
 
 
 
 
   
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
As of December 31, 2023 and 2022, the Company did not record any uncertain tax positions.

The Company files income tax returns in the U.S. federal tax jurisdiction, Massachusetts state tax jurisdiction, and certain foreign tax jurisdictions. The Company is subject to
examination  by  the  U.S.  federal,  state,  foreign,  and  local  income  tax  authorities  for  calendar  tax  years  through  2023  due  to  available  net  operating  loss  carryforwards  and
research  and  development  tax  credits  arising  in  those  years.  The  Company  has  not  been  notified  of  any  examinations  by  the  Internal  Revenue  Service  or  any  other  tax
authorities as of December 31, 2023. The Company has not recorded any interest or penalties for unrecognized tax benefits since its inception.

Potential 382 Limitation

The Company’s net operating loss and tax credit carryforwards are subject to review and possible adjustment by the Internal Revenue Service. The Company’s ability to utilize
its net operating loss (“NOL”) and research and development credit (“R&D”) carryforwards may be substantially limited due to ownership changes that may have occurred or
that could occur in the future, as required by Section 382 of the Code, as well as similar state provisions. These ownership changes may limit the amount of NOL and R&D
credit carryforwards that can be utilized annually to offset future taxable income and tax, respectively. In general, an ownership change, as defined in Section 382 of the Code,
results from a transaction or series of transactions over a three-year period resulting in an ownership change of more than 50% of the outstanding stock of a company by certain
stockholders or public groups.

The Company has not completed a study to assess whether one or more ownership changes have occurred since it became a loss corporation as defined in Section 382 of the
Code, but the Company believes that it is likely that an ownership change has occurred. If the Company has experienced an ownership change, utilization of the NOL and R&D
credit carryforwards would be subject to an annual limitation, which is determined by first multiplying the value of the Company’s common stock at the time of the ownership
change by the applicable long-term, tax-exempt rate, and then could be subject to additional adjustments, as required. Any such limitation may result in the expiration of a
portion of the NOL or R&D credit carryforwards before utilization. Until a study is completed, and any limitation known, no amounts are being considered as an uncertain tax
position or disclosed as an unrecognized tax benefit. Any carryforwards that expire prior to utilization as a result of such limitations will be removed from deferred tax assets
with a corresponding adjustment to the valuation allowance. Due to the existence of the valuation allowance, it is not expected that any potential limitation will have a material
impact on the Company’s operating results.

From time to time the Company may be assessed interest or penalties by major tax jurisdictions, namely the Commonwealth of Massachusetts. As of December 31, 2023, the
Company  had  no  material  unrecognized  tax  benefits  and  no  adjustments  to  liabilities  or  operations  were  required.  No  interest  and  penalties  have  been  recognized  by  the
Company to date.

10.

Stockholders’ Equity

Common Stock

Each share of the Company’s common stock entitles the holder to one vote on all matters submitted to a vote of the Company’s stockholders. Common stockholders are entitled
to dividends when and if declared by the Board of Directors. In the event of any voluntary or involuntary liquidation, dissolution or winding-up of the Company, the holders of
common stock are entitled to share ratably in the assets of the Company available for distribution.

On May 11, 2023, the Company filed a Certificate of Change to the Company’s Articles of Incorporation with the Secretary of State of Nevada to effect the Reverse Stock Split.
The Reverse Stock Split was effective at 12:01 a.m., Eastern Time, on May 15, 2023. No fractional shares were issued as a result of the Reverse Stock Split and any remaining
share fractions were rounded up to the nearest whole share, resulting in 15,941 new shares of common stock being issued to existing holders of the Company’s common stock.

F-21

 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
Authorized Share Increase

On December 21, 2022, shareholders of the Company voted to approve an amendment to the Company’s Articles of Incorporation to increase the authorized shares of common
stock to 10,000,000 shares (the “Authorized Share Increase”). The Company filed a Certificate of Amendment to the Company’s Articles of Incorporation with the Secretary of
the State of Nevada to effect the Authorized Share Increase as of December 21, 2022.

At the Market (“ATM”) Offering

On  November  19,  2021,  the  Company  entered  into  an ATM  Offering Agreement  (the  “ATM Agreement”)  with  H.C. Wainwright  &  Co.,  LLC,  as  the  exclusive  sales  agent
(“Wainwright”), pursuant to which the Company may offer and sell, from time to time through Wainwright, shares of its common stock, par value $0.001 per share. The offer
and sale of the shares will be made pursuant to a shelf registration statement on Form S-3 (File No. 333-260201) and the related prospectus, filed with the SEC on October 12,
2021 and declared effective on October 22, 2021, and is currently limited to a number of securities it can sell under the ATM Agreement of up to $4 million, provided that the
Company may be limited in the amount of securities that it can sell pursuant to General Instruction I.B.6 of Form S-3.

Pursuant  to  the  ATM  Agreement,  Wainwright  may  sell  the  shares  in  sales  deemed  to  be  “at-the-market”  equity  offerings  as  defined  in  Rule  415  promulgated  under  the
Securities Act, including sales made directly on or through the Nasdaq Capital Market. If agreed to in a separate terms agreement, the Company may sell shares to Wainwright
as principal, at a purchase price agreed upon by Wainwright and the Company. Wainwright may also sell shares in privately negotiated transactions with the Company’s prior
approval. Sales of the shares through Wainwright, if any, will be made in amounts and at times to be determined by the Company from time to time, but the Company has no
obligation to sell any of the shares and either the Company or Wainwright may at any time suspend offers under the agreement or terminate the agreement. Actual sales will
depend on a variety of factors to be determined by the Company from time to time, including (among others) market conditions, the trading price of the Company’s common
stock  and  determinations  by  the  Company  of  the  appropriate  sources  of  funding  for  the  Company.  The  offer  and  sale  of  the  shares  pursuant  to  the ATM Agreement  will
terminate upon the earlier of (a) the issuance and sale of all of the shares subject to the ATM Agreement or (b) the termination of the ATM Agreement by Wainwright or the
Company pursuant to the terms thereof.

No shares were sold under the ATM Agreement during the years ended December 31, 2023 and 2022. The Company incurred approximately $0.2 million of costs associated
with the ATM which were expensed during the year ended December 31, 2023. These costs were recorded within prepaid expenses and other current assets as of December 31,
2022.

Series A Preferred Stock

The Company has designated 1,000,000 shares as Series A preferred stock with each share having a par value of $0.001 and stated value of $4.80 (the “Series A Preferred
Stock”). The following is a summary of the material terms of the Series A Preferred Stock.

Liquidation.    Upon any dissolution, liquidation or winding up, whether voluntary or involuntary, holders of Series A Preferred Stock will be entitled to receive distributions
out of the Company’s assets, of an amount equal to the stated value per share of Series A Preferred Stock (as adjusted for stock splits, combinations, reorganizations and the
like) plus any accrued and unpaid dividends thereon before any distributions shall be made on the common stock or any series of preferred stock ranked junior to the Series A
Preferred Stock.

Dividends.    Holders of the Series A Preferred Stock are entitled to receive a non-cumulative cash dividend at an annual rate of 5% of the stated value per share of Series A
Preferred Stock, when and if declared by the Company’s Board, out of the Company’s assets legally available therefor. No dividends or other distribution will be made on the
common stock or any series of preferred stock ranked junior to the Series A Preferred Stock unless the dividend on the Series A Preferred Stock has been paid current and a
reserve has been made for the next calendar year. The Company’s ability to pay dividends on Series A Preferred Stock is subject to restrictions in the Company’s Series B
Preferred Stock, which ranks senior to the Series A Preferred Stock in right of payment.

F-22

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Conversion.    Series A Preferred Stock is convertible, at any time and from time to time at the option of the holder thereof, with a minimum of 61 days’ advance notice to the
Company, at a rate of one hundred twenty shares of Series A Preferred Stock to one share of common stock basis.

Redemption.    Upon 30 days’ prior written notice, the Company may require the holder of any Series A Preferred Stock to convert any or all of such holder’s Series A Preferred
Stock to common stock at a rate of one hundred twenty shares of Series A Preferred Stock to one share of common stock basis.

The Series A Preferred Stock has additional terms covering stock dividends and splits, voting rights, fractional shares and fundamental transactions. As of December 31, 2022,
there were approximately 1.0 million shares of Series A Preferred Stock issued and outstanding. During 2023, the holder of the Series A Preferred Stock converted all of their
shares into 8,084 shares of Company common stock. As a result, there was no Series A Preferred Stock outstanding as of December 31, 2023.

Series B Preferred Stock

The  Company  has  designated  2,500,000  shares  as  Series  B  preferred  stock  with  each  share  having  a  stated  value  of  $4.00  per  share  (the  “Series  B  Preferred  Stock”). The
following is a summary of the material terms of the Company’s Series B Preferred Stock.

Liquidation.    Upon any dissolution, liquidation or winding up, whether voluntary or involuntary, holders of Series B Preferred Stock will be entitled to receive distributions
out of the Company’s assets of an amount equal to the stated value per share of Series B Preferred Stock (as adjusted for stock splits, combinations, reorganizations and the
like)  plus  any  accrued  and  unpaid  dividends  thereon  and  any  other  fees  or  liquidated  damages  then  due  and  owing  thereon  under  the  amended  and  restated  certificate  of
designation before any distributions shall be made on the common stock or any series of preferred stock ranked junior to the Series B Preferred Stock, which includes Series A
Preferred Stock. A fundamental transaction or change of control under the amended and restated certificate of designation shall constitute a liquidation for purposes of this
right. Xenetic will give each holder of Series B Preferred Stock written notice of any liquidation at least 30 days before any meeting of stockholders to approve such liquidation
or at least 45 days before the date of such liquidation if no meeting is to be held.

Dividends.    Subject to any preferential rights of any outstanding series of preferred stock created by the Company’s Board from time to time, the holders of shares of the
Company’s Series B Preferred Stock will be entitled to such cash dividends, non-cumulative, as may be declared from time to time by the Company’s Board on shares of the
Company’s common stock (on an as-converted basis) from funds available therefore. The Company shall not directly or indirectly pay or declare any dividend or make any
distribution  upon,  nor  shall  any  distribution  be  made  in  respect  of,  any  junior  securities,  including  Series A  Preferred  Stock,  as  long  as  any  dividends  due  on  the  Series  B
Preferred Stock remain unpaid, nor shall any monies be set aside for or applied to the purchase or redemption of any junior securities or shares pari passu with the Series B
Preferred Stock.

Conversion.     Series B Preferred Stock is convertible, at any time and from time to time at the option of the holder thereof, at a rate of one preferred share to approximately
0.033 common share basis, subject to an issuable maximum and the adjustments described below. There were no Series B Preferred Stock conversions during the years ended
December 31, 2023 and 2022.

Subsequent  Equity  Sales.        The  Series  B  Preferred  Stock  has  ratchet  price  based  anti-dilution  protection,  subject  to  customary  carve  outs,  in  the  event  of  a  down-round
financing at a price per share below the stated value of the Series B Preferred Stock. There is no bifurcation of the embedded conversion option being clearly and closely related
to the host instrument.

The Series B Preferred Stock has additional terms covering stock dividends and splits, voting rights, fractional shares and fundamental transactions. As of December 31, 2023
and 2022, there were approximately 1.8 million shares of Series B Preferred Stock issued and outstanding which are convertible into approximately 60,000 shares of common
stock in each year, which represents the issuable maximum that can be issued upon the conversion of the currently outstanding Series B Preferred Stock.

F-23

 
 
  
 
 
 
 
 
  
 
   
 
 
 
 
 
Warrants Related to Financing Arrangements

In connection with its July 2021 private placement, the Company issued warrants to purchase an aggregate of 462,963 shares of the Company’s common stock (the “Series A
Warrants”). The Series A Warrants are immediately exercisable at a price of $33.00 per share of common stock and expire on February 23, 2025. No Series A Warrants were
exercised or forfeited during the years ended December 31, 2023 and 2022.

In addition, the Company has publicly traded warrants to purchase approximately 2,100 shares of common stock outstanding as of both December 31, 2023 and 2022. These
warrants have an exercise price of $130.00 per share and expire on July 17, 2024. The warrants trade on Nasdaq under the symbol “XBIOW.” The warrants also provide that if
the weighted-average price of common stock on any trading day on or after 30 days after issuance is lower than the then-applicable exercise price per share, each warrant may
be exercised, at the option of the holder, on a cashless basis for one share of common stock. None of these warrants were exercised during the year ended December 31, 2023.
Warrants to purchase approximately 200 shares of common stock were exercised on a cashless, one-for-one basis during the year ended December 31, 2022. None of these
warrants were forfeited during the years ended December 31, 2023 and 2022.

The Company also has outstanding warrants to purchase approximately 800 shares of the Company’s common stock as of December 31, 2023 and 2022. These warrants have
an exercise price of $29.09 per share and expire on July 3, 2026. None of these warrants were exercised or forfeited during the years ended December 31, 2023 and 2022.

11.

Share-Based Expense

Total share-based expense related to stock options, RSUs and common stock awards was approximately $0.3 million and $0.5 million for the years ended December 31, 2023
and 2022, respectively. Share-based expense is classified in the consolidated statements of comprehensive loss as follows:

Research and development expenses
General and administrative expenses

Stock Options

Year Ended December 31,

2023

2022

$

$

56,112   
226,973   
283,085   

$

$

86,305 
425,175 
511,480 

The Company grants stock option awards and RSUs to employees and non-employees with varying vesting terms under the Xenetic Biosciences, Inc. Amended and Restated
Equity Incentive Plan. The Company measures the fair value of stock option awards using the Black-Scholes option pricing model, which uses the assumptions noted in the
tables  below,  including  the  risk-free  interest  rate,  expected  term,  share  price  volatility,  dividend  yield  and  forfeiture  rate.  The  risk-free  interest  rate  is  based  upon  the  U.S.
Treasury yield curve in effect at the time of grant, with a term that approximates the expected life of the option. For stock options issued in 2023 and 2022 that qualify as “plain
vanilla” stock options, the expected term is based on the simplified method. The Company has a limited history of stock option exercises, which does not provide a reasonable
basis for the Company to estimate the expected term of employee and non-employee stock options. For all other stock options, the Company estimates the expected life using
judgment based on the anticipated research and development milestones of the Company’s clinical projects and behavior of the Company’s employees and non-employees. The
expected life of non-employee options is the contractual life of the option. The expected volatility rates are estimated based on the actual volatility of the Company. To the
extent Company data is not available for the full expected term of the awards the Company uses a price volatility based on a blended rate of the Company’s historical volatility
with that of comparable publicly traded companies with drug candidates in similar therapeutic areas and stages of nonclinical and clinical development to the Company’s drug
candidates. The Company has applied an expected dividend yield of 0% as the Company has not historically declared a dividend and does not anticipate declaring a dividend
during the expected life of the options. The Company accounts for forfeitures as they occur.

F-24

 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
Employee Stock Options

During the years ended December 31, 2023 and 2022, 57,500 and 35,000 total stock options to purchase shares of common stock were granted by the Company, respectively.
The weighted average grant date fair value per option was $3.49 and $7.29, respectively. No employee stock options were exercised and none expired during the years ended
December 31, 2023 and 2022.

During the years ended December 31, 2023 and 2022, 33,333 and 37,503 total stock options vested, respectively, with total fair values of approximately $0.3 million and $0.6
million,  respectively.  As  of  December  31,  2023,  there  was  approximately  $0.3  million  of  unrecognized  share-based  payments  related  to  employee  stock  options  that  are
expected to vest. The Company expects to recognize this expense over a weighted-average period of approximately 2.1 years.

Key assumptions used in the Black-Scholes option pricing model for options granted to employees during the years ending December 31, 2023 and 2022 are as follows: 

Weighted-average expected dividend yield (%)
Weighted-average expected volatility (%)
Weighted-average risk-free interest rate (%)
Weighted-average expected life of option (years)
Weighted-average exercise price ($)

The following is a summary of employee stock option activity for the years ended December 31, 2023 and 2022: 

Outstanding as of January 1, 2022
Granted
Expired
Outstanding as of December 31, 2022
Granted
Expired
Outstanding as of December 31, 2023

Vested or expected to vest as of December 31, 2023

Exercisable as of December 31, 2022
Exercisable as of December 31, 2023

Number of
shares

Weighted-
average
exercise
price

62.66   
8.27   
–   
49.43   
4.00   
–   
36.46   

36.46   

65.70   
52.10   

108,888   
35,000   
–   
143,888   
57,500   
–   
201,388   

201,388   

100,555   
133,888   

$

$

$

$

$
$

F-25

Year Ended December 31,

2023

2022

–   
121.50   
4.21   
5.76   
4.00   

– 
126.51 
2.90 
5.72 
8.27 

Weighted-
average
remaining
life
(years)

Aggregate
intrinsic
value

8.22   

$

23,750 

7.78   

$

7.69   

7.69   

7.14   
6.69   

$

$

$
$

– 

– 

– 

– 
– 

 
 
 
  
 
 
    
  
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
 
   
   
   
 
 
 
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
 
    
 
    
 
    
 
  
 
 
 
 
    
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
A summary of the status of the Company’s non-vested employee stock option shares as of December 31, 2023, and the changes during the year ended December 31, 2023, is as
follows: 

Balance as of January 1, 2023
Granted
Forfeited
Vested
Balance as of December 31, 2023

Restricted Stock Units

Number of
shares

43,334   
57,500   
–   
(33,333)  
67,501   

$

$

Weighted-
average
grant date
fair value

10.39 
3.49 
– 
9.86 
4.77 

There are 417 RSUs outstanding as of December 31, 2023 and 2022, respectively. The RSUs are fully vested and had a grant date fair value of $253.70 per share. No RSUs
were granted or expired during the years ended December 31, 2023 and 2022.

Non-Employee Stock Options

Share-based expense related to stock options granted to non-employees is recognized as the services are rendered on a straight-line basis. The Company determined that the fair
value of the stock options is more reliably measurable than the fair value of the services received. No stock options to purchase shares of common stock were granted by the
Company to non-employees during the years ended December 31, 2023 and 2022. No non-employee stock options were exercised during the years ended December 31, 2023
and 2022. No compensation expense related to non-employee options during the years ended December 31, 2023 and December 31, 2022 as all non-employee stock options
were fully vested as of December 31, 2020.

The following is a summary of non-employee stock option activity for the years ended December 31, 2023 and 2022:

Outstanding as of January 1, 2022
Granted
Expired
Outstanding as of December 31, 2022
Granted
Expired
Outstanding as of December 31, 2023

Vested or expected to vest as of December 31, 2023

Exercisable as of December 31, 2022
Exercisable as of December 31, 2023

Number of
shares

Weighted-
average
exercise
price

120.83   
–   
–   
120.83   
–   
231.60   
115.99   

115.99   

120.83   
115.99   

2,009   
–   
–   
2,009   
–   
(84)  
1,925   

1,925   

2,009   
1,925   

$

$

$

$
$

F-26

Weighted-
average
remaining
life
(years)

Aggregate
intrinsic
value

2.83   

$

3,255 

1.83   

0.91   

0.91   

1.83   
0.91   

$

$

$
$

– 

– 

– 

– 
– 

 
  
 
  
 
  
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
   
 
  
 
  
 
  
 
  
 
 
   
   
   
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
    
 
  
 
 
 
 
 
 
    
 
    
 
    
 
  
 
 
 
 
 
 
    
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
Common Stock Awards

The Company has granted common stock awards to non-employees in exchange for services provided. The Company measures the fair value of these awards using the fair
value of the services provided or the fair value of the awards granted, whichever is more reliably measurable. The fair value measurement date of these awards is generally the
date the performance of services is complete. The fair value of the awards is recognized as services are rendered on a straight-line basis. No common stock awards were granted
or issued during the years ended December 31, 2023 and 2022.

Joint Share Ownership Plan

As  of  December  31,  2023  and  2022,  there  were  approximately  2,701  JSOP  awards  issued  and  outstanding  to  two  former  senior  executives.  Under  the  JSOP,  shares  in  the
Company are jointly purchased at fair market value by the participating executives and the trustees of the JSOP trust, with such shares held in the JSOP trust. For U.S. GAAP
purposes the awards were valued as employee options and recorded as a reduction in equity as treasury shares until they are exercised by the employee. The JSOP awards are
fully vested and have no expiration date. There were no compensation charges during the years ended December 31, 2023 and 2022.

12.

Employee Benefit Plans

The Company has a defined contribution 401(k) savings plan (the “401(k) Plan”). The 401(k) Plan covers substantially all U.S. employees, and allows participants to defer a
portion of their annual compensation on a pre-tax basis or make post-tax contributions. Company contributions to the 401(k) Plan may be made at the discretion of the Board of
Directors. During the years ended December 31, 2023 and 2022, the Company made contributions of approximately $41,000 and $38,000 to the 401(k) Plan, respectively.

13.

Commitments and Contingencies

Leases

The Company determines whether an arrangement is a lease at inception. On October 1, 2020, the Company entered into a two-year lease for its corporate headquarters in
Framingham,  Massachusetts. This  lease  called  for  total  future  minimum  rent  payments  of  approximately  $78,000  at  inception  and  had  a  termination  date  of  September  30,
2022. The Company recorded a right-of-use (“ROU”) asset and corresponding lease liability on the consolidated balance sheet. The Company did not have options to extend,
termination options or material residual value guarantees. The lease was not renewed and the Company entered into a 12-month lease for office space in a shared office location
effective October 1, 2022. As this lease has a term of 12 months at inception, the Company did not apply the provisions of ASU 2016-02 and will account for it as an operating
lease. As of December 31, 2023, total minimum lease payments on this lease were approximately $15,000.

Supplemental cash flow information and non-cash activity related to our operating leases are as follows: 

Operating cash flow information:
Cash paid for amounts included in the measurement of lease liabilities

Year Ended
December 31,
2023

Year Ended
December 31,
2022

$

–   

$

27,043 

The Company did not apply the provisions of ASU 2016-02 to the lease of its office space in Miami, Florida. Effective November 1, 2023, the Company renewed its Miami
office lease for twelve-months to November 2024. As this lease has a term of 12 months at inception, the Company accounts for it as an operating lease. As of December 31,
2023, total minimum lease payments on this lease were approximately $15,000.

F-27

 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
   
 
 
 
    
 
  
 
 
  
 
 
 
 
 
14.

Related Party Transactions

The Company has entered into various research, development, license and supply agreements with Serum Institute and Pharmsynthez, each a related party whose relationship,
ownership,  and  nature  of  transactions  is  disclosed  within  other  sections  of  these  footnotes.  Please  refer  to  Note  4,  Significant  Strategic  Collaborations,  and  Note  6,  Other
Assets, for details on arrangements with collaboration partners that are also related parties.

During  the  fourth  quarter  of  2019,  the  Company  entered  into  a  loan  agreement  with  Pharmsynthez  (the  “Pharmsynthez  Loan”),  pursuant  to  which  the  Company  advanced
Pharmsynthez an aggregate principal amount of up to $500,000 to be used for the development of a specific product under the Company’s Co-Development Agreement with
Pharmsynthez. The Pharmsynthez Loan had an initial term of 15-months and accrued interest at a rate of 10% per annum. The Pharmsynthez Loan was guaranteed by all of the
operating subsidiaries of Pharmsynthez, including SynBio and AS Kevelt, and was secured by all of the common and preferred stock of the Company owned by Pharmsynthez
and SynBio.

Pharmsynthez paid all obligations due under the Pharmsynthez Loan in May 2023, and no further amounts are due under the Pharmsynthez Loan. As a result, the Company
recognized approximately $65,000 of income related to interest and fees associated with the Pharmsynthez Loan including approximately $40,000 related to interest income
during  the  twelve  months  ended  December  31,  2023. The  Company  recognized  approximately  $9,000  of  interest  income  related  to  the  Pharmsynthez  Loan  during  the  year
ended December 31, 2022. As of December 31, 2022, approximately $0.4 million was included in other assets on the consolidated balance sheet. No amounts were outstanding
as of December 31, 2023.

In April 2022, the Company entered into certain agreements with CLS as described in Note 5. One of the Company’s directors, Roger Kornberg, is a member of the scientific
advisory board of CLS. However, Mr. Kornberg does not own any equity of CLS and is not receiving any economic benefit as a result of the transactions contemplated by such
agreements. Mr. Adam Logal, one of our directors, is Senior Vice President, Chief Financial Officer, Chief Accounting Officer and Treasurer of OPKO. Dr. Dmitry Genkin is a
significant shareholder of CLS. Dr. Genkin was elected to our board of directors on December 6, 2023.

15.

Subsequent Events

The Company performed a review of events subsequent to the balance sheet date through the date the financial statements were issued and determined that there were no such
events requiring recognition or disclosure in the financial statements.

F-28

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 9 – CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

Not applicable.

ITEM 9A – CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures as
defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), as of the end of the period covered by this Annual
Report on Form 10-K.

Based on this evaluation our management, including our Chief Executive Officer and Chief Financial Officer, concluded that, as of December 31, 2023, our disclosure controls
and procedures are designed at a reasonable assurance level and are effective to provide reasonable assurance that information we are required to disclose in reports that we file
or submit under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms, and that such information is
accumulated and communicated to our management, including our principal executive and principal financial officers, or persons performing similar functions, as appropriate,
to allow timely decisions regarding required disclosure.

Management’s Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Rule 13a-15(f) of the Exchange
Act.  Management,  under  the  supervision  and  with  the  participation  of  our  Chief  Executive  Officer  and  Chief  Financial  Officer,  conducted  an  assessment  of  the  design  and
effectiveness of our internal control over financial reporting as of the end of the period covered by this Annual Report on Form 10-K. In making its assessment of internal
control over financial reporting, management used the criteria set forth by the Committee of Sponsoring Organizations (“COSO”) of the Treadway Commission in Internal
Control — Integrated Framework (2013 Framework). Based on this assessment, our management concluded that, as of the end of the period covered by this Annual Report on
Form 10-K, our internal control over financial reporting was effective based on the criteria set forth by COSO of the Treadway Commission in Internal Control — Integrated
Framework.

This annual report does not include an attestation report of our registered public accounting firm regarding internal control over financial reporting. Management’s report was
not subject to attestation by our registered public accounting firm pursuant to an exemption for non-accelerated filers set forth in Section 989G of the Dodd-Frank Wall Street
Reform and Consumer Protection Act.

Changes in Internal Control Over Financial Reporting

There have been no changes in our internal control over financial reporting that occurred during the quarterly period covered by this Annual Report on Form 10-K that have
materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

64

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Limitations on Effectiveness of Controls and Procedures

In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can
provide only reasonable assurance of achieving the desired control objectives. The Company’s internal control over financial reporting includes those policies and procedures
that:

(1)
(2)

(3)

Pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the Company’s assets;
Provide  reasonable  assurance  that  transactions  are  recorded  as  necessary  to  permit  preparation  of  financial  statements  in  accordance  with  generally  accepted
accounting principles, and that the Company’s receipts and expenditures are being made only in accordance with authorizations of the Company’s management and
directors; and
Provide  reasonable  assurance  regarding  prevention  or  timely  detection  of  unauthorized  acquisition,  use,  or  disposition  of  the  Company’s  assets  that  could  have  a
material effect on the financial statements.

Management,  including  the  Company’s  principal  executive  and  principal  financial  officers,  or  persons  performing  similar  functions,  does  not  expect  that  the  Company’s
internal controls will prevent or detect all errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance
that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must
be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of internal controls can provide absolute assurance that all control
issues and instances of fraud, if any, have been detected. Also, any evaluation of the effectiveness of controls in future periods are subject to the risk that those internal controls
may become inadequate because of changes in business conditions, or that the degree of compliance with the policies or procedures may deteriorate.

ITEM 9B – OTHER INFORMATION

During the quarter ended December 31, 2023, no director or officer adopted or terminated any Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement, as
each term is defined in Item 408(a) of Regulation S-K.

ITEM 9C – DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

Not applicable.

65

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 10 – DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

PART III

The information required by this Item will be set forth in the Company’s definitive proxy statement or information statement to be filed with the SEC in connection with the
Company’s 2024 Annual Meeting of Stockholders within 120 days of the end of the Company’s fiscal year ended December 31, 2023 and is incorporated herein by reference,
or will be included in an amendment to this Annual Report on Form 10-K.

ITEM 11 – EXECUTIVE COMPENSATION

The information required by this Item will be set forth in the Company’s definitive proxy statement or information statement to be filed with the SEC in connection with the
Company’s 2024 Annual Meeting of Stockholders within 120 days of the end of the Company’s fiscal year ended December 31, 2023 and is incorporated herein by reference,
or will be included in an amendment to this Annual Report on Form 10-K.

ITEM 12 – SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The information required by this Item will be set forth in the Company’s definitive proxy statement or information statement to be filed with the SEC in connection with the
Company’s 2024 Annual Meeting of Stockholders within 120 days of the end of the Company’s fiscal year ended December 31, 2023 and is incorporated herein by reference,
or will be included in an amendment to this Annual Report on Form 10-K.

ITEM 13 – CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The information required by this Item will be set forth in the Company’s definitive proxy statement or information statement to be filed with the SEC in connection with the
Company’s 2024 Annual Meeting of Stockholders within 120 days of the end of the Company’s fiscal year ended December 31, 2023 and is incorporated herein by reference,
or will be included in an amendment to this Annual Report on Form 10-K.

ITEM 14 – PRINCIPAL ACCOUNTING FEES AND SERVICES

The information required by this Item will be set forth in the Company’s definitive proxy statement or information statement to be filed with the SEC in connection with the
Company’s 2024 Annual Meeting of Stockholders within 120 days of the end of the Company’s fiscal year ended December 31, 2023 and is incorporated herein by reference,
or will be included in an amendment to this Annual Report on Form 10-K.

66

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 15 – EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a)

The following is filed as part of this Annual Report on Form 10-K:

PART IV

·

·

Consolidated Financial Statements:  The consolidated financial statements and report of independent registered public accounting firm required by this item are
included in Part II, Item 8;
Financial Statement Schedules:  All schedules are omitted because they are not applicable or not required, or because the required information is shown either in
the consolidated financial statements or in the notes thereto.

(b)

Exhibits: The exhibits which are filed or furnished with this Annual Report on Form 10-K or which are incorporated herein by reference are set forth in the Exhibit
Index beginning on page 67 which is incorporated herein by reference.

ITEM 16 – FORM 10-K SUMMARY

Not applicable.

EXHIBIT INDEX

Exhibit
No.

3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8

3.9

3.10
3.11
3.12
3.13
3.14
3.15
4.1

4.2
4.3
4.4
4.5

Exhibit Index

  Articles of Incorporation
  Certificate of Amendment to Articles of Incorporation
  Certificate of Amendment to Articles of Incorporation
  Certificate of Amendment to Articles of Incorporation
  Certificate of Change Pursuant to NRS 78.209
  Certificate of Amendment to Articles of Incorporation
  Amended and Restated Bylaws
  Form of Amended and Restated Certificate of Designation of Preferences, Rights and

Limitations of Series A Preferred Stock

  Second Amended and Restated Certificate of Designation of Preferences, Rights and

Limitations of Series B Preferred Stock

  Certificate of Change Pursuant to NRS 78.209
  Certificate of Amendment to Articles of Incorporation
  Certificate of Amendment to Articles of Incorporation
  Certificate of Amendment to Articles of Incorporation
  Certificate of Amendment to Articles of Incorporation
  Certificate of Change to Articles of Incorporation
  Description of Registrant’s Securities Registered Pursuant to Section 12 of the Securities

Exchange Act of 1934

  Form of Common Stock Certificate of the Registrant
  Form of Common Stock Purchase Warrant
  Form of Common Stock Purchase Warrant
  Form of Series A Warrant

Form

S-1
8-K
8-K
10-Q
10-Q
8-K
8-K
S-1/A

S-1/A

8-K
8-K
10-K
10-K
10-K
8-K

S-1/A
8-K
8-K
8-K

Filing Date

11/21/2011
02/12/2013
02/27/2013
01/10/2014
01/10/2014
09/30/2015
02/27/2017
10/27/2016

10/31/2016

06/24/2019
06/24/2019
03/16/2021
03/16/2021
03/22/2023
05/12/2023

07/14/2016
06/25/2019
07/22/2019
07/28/2021

Exhibit
Number

Filed
Herewith

3.1
3.1
3.1
3.1
3.2
3.1
3.1
3.8

3.9

3.1
3.2
3.12
3.13
3.14
3.1

4.1
4.1
4.2
4.1

X

67

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit
No.
10.1†

  Form of Amended and Restated Xenetic Biosciences, Inc. Equity Incentive Plan, as

amended, effective as of December 7, 2021

Exhibit Index

Form

DEF14A  

Filing Date
10/15/2021

Exhibit
Number
  Appendix A  

Filed
Herewith

10.2#

  Agreement on Co-Development and the Terms of Exclusive License dated August 4, 2011

10-K/A  

02/18/2015

between Lipoxen plc, Lipoxen Technologies LTD and SynBio LLC

10.3

  Novation of Agreement on Co-Development and the Terms of Exclusive License, dated

10-K

03/22/2022

10.18

10.3

December 17, 2021, between Xenetic Biosciences (UK) Limited (formerly Lipoxen plc),
Lipoxen Technologies Limited, SynBio LLC and Public Joint-Stock Company
Pharmsynthez

10.4##

  Exclusive License Agreement, dated December 20, 2021, between Lipoxen Technologies

10-K

03/22/2022

10.4

10.5#

Limited and Public Joint-Stock Company Pharmsynthez
Subscription Agreement in respect of ordinary shares in the capital of Lipoxen plc dated
August 4, 2011 between SynBio LLC and Lipoxen plc

10-K/A  

02/18/2015

10.6#

  Collaboration, License and Development Agreement, dated November 11, 2009, between

10-K/A  

02/18/2015

Pharmsynthez ZAO and Lipoxen Technologies Ltd.

10.7#

  Exclusive Patent and Know How License and Manufacturing Agreement, dated August 4,

10-K/A  

02/18/2015

2011, between Lipoxen plc, Lipoxen Technologies Ltd and Serum Institute of India
Limited

10.8

  Intellectual Property Assignment between Dmitry Genkin, FDS Pharma, Lipoxen

10-K

04/15/2015

Technologies Limited and Xenetic Biosciences Inc.

10.9†

  Employment Agreement, dated January 1, 2017 between Xenetic Biosciences, Inc. and

Curtis Lockshin

10.10†

  Employment Agreement, dated March 23, 2017 between Xenetic Biosciences, Inc. and

James F. Parslow

8-K

8-K

01/04/2017

04/04/2017

10.11†

  Form of Indemnity Agreement by and between Xenetic Biosciences, Inc. and each of its

10-Q

08/14/2017

directors and executive officers

10.12†

  Amended and Restated Employment Agreement, dated October 26, 2017, between Xenetic

10-K

03/30/2018

Biosciences, Inc. and Jeffrey Eisenberg

10.13#

  Right to Sublicense Agreement, dated October 27, 2017, by and among Xenetic
Biosciences, Inc., Baxalta Incorporated, Baxalta US Inc., and Baxalta GmbH

10-K

03/30/2018

10.14

  Assignment Agreement between Xenetic Biosciences, Inc. and OPKO Pharmaceuticals,

8-K/A

05/20/2019

LLC, dated March 1, 2019

10.15
10.16
10.17
10.18

  First Amendment to Assignment Agreement dated June 7, 2019
  Second Amendment to Assignment Agreement dated June 24, 2019
  Third Amendment to Assignment Agreement dated July 15, 2019
  Form of Consent Agreement by and among Xenetic Biosciences, Inc. and certain

purchasers dated June 24, 2019

10.19

  Warrant Agency Agreement, between Xenetic Biosciences, Inc. and Empire Stock Transfer,

Inc. dated July 19, 2019

10.20

  Consent Agreement by and among Xenetic Biosciences, Inc. and certain purchasers dated

July 16, 2019

10.21†

  Form of Letter Agreement re. Appointment of Non – Employee, Independent Director of

Xenetic Biosciences, Inc.

10.22†
10.23†

  Form of Xenetic Biosciences, Inc. Stock Option Grant Notice
  Xenetic Biosciences, Inc. Stock Option Grant Notice, dated December 4, 2019, between

Jeffrey Eisenberg and Xenetic Biosciences, Inc.

8-K
8-K
8-K
8-K

8-K

8-K

10-K

10-K
10-K

06/13/2019
06/24/2019
07/16/2019
06/25/2019

07/22/2019

07/16/2019

03/26/2020

03/26/2020
03/26/2020

10.19

10.20

10.21

10.1

10.1

10.1

10.1

10.45

10.46

10.1

10.1
10.1
10.1
10.1

10.1

10.1

10.51

10.52
10.53

68

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit
No.
10.24

  Form of Securities Purchase Agreement, dated July 26, 2021, by and among the Company

and the other parties thereto

Exhibit Index

10.25

  At The Market Offering Agreement by and between Xenetic Biosciences, Inc. and H.C.

Wainwright & Co., LLC, dated November 19, 2021

Form
8-K

8-K

Filing Date
7/28/2021

11/19/2021

10.26##

  Exclusive Sublicense Agreement, dated April 26, 2022, between Xenetic Biosciences, Inc.

10-Q

8/11/2022

and CLS Therapeutics LTD

10.27##

  Exclusive License Agreement, dated April 26, 2022, between Xenetic Biosciences, Inc. and

10-Q

8/11/2022

CLS Therapeutics LTD

10.28

  Form of Subscription Agreement, dated April 26, 2022, between Xenetic Biosciences, Inc.

and CLS Therapeutics LTD

10.29##

  Statement of Work, dated June 30, 2022, between Xenetic Biosciences, Inc. and Catalent

Pharma Solutions, LLC

10.30##

  Research Funding and Option Agreement, dated March 17, 2023, between the Company

10-Q

10-Q

10-Q

8/11/2022

8/11/2022

5/11/2023

Exhibit
Number
10.1

Filed
Herewith

1.1

10.1

10.2

10.3

10.4

10.1

21.1
23.1
24.1
31.1

31.2

32.1*

and the Scripps Research Institute

  List of Subsidiaries
  Consent of Marcum LLP
  Power of Attorney (included on signature page)

Certification of Principal Executive Officer, as required by Rule 13a-14(a) or Rule 15d-
14(a)
Certification of Principal Financial Officer, as required by Rule 13a-14(a) or Rule 15d-
14(a)
Certification of Principal Executive Officer and Principal Financial Officer, as required by
Rule 13a-14(b) or Rule 15d-14(b) and Section 1350 of Chapter 36 of Title 18 of the United
States Code (18 U.S.C. §1350)

  Policy Regarding the Mandatory Recovery of Compensation
  Inline XBRL Instance Document.

97.1
101.INS
101.SCH   Inline XBRL Taxonomy Extension Schema Document.
101.CAL   Inline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF   Inline XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB   Inline XBRL Taxonomy Extension Label Linkbase Document.
101.PRE   Inline XRBL Taxonomy Extension Presentation Linkbase Document.

104

  Cover Page Interactive Data File (embedded within the Inline XBRL document)

X
X
X
X

X

X

X
X
X
X
X
X
X
X

†
#

##

*

Indicates a management contract or any compensatory plan, contract or arrangement.
Application  has  been  made  with  the  Securities  and  Exchange  Commission  to  seek  confidential  treatment  of  certain  confidential  material  contained  in  this  document.
Omitted material for which confidential treatment has been requested has been filed separately with the Securities and Exchange Commission.
Portions of this exhibit, marked by brackets and asterisks, have been omitted pursuant to Item 601(b)(10) of Regulation S-K under the Securities Act of 1933, as amended,
because they are both (i) not material and (ii) would likely cause competitive harm to the registrant if publicly disclosed. The registrant undertakes to promptly provide an
unredacted copy of the exhibit on a supplemental basis, if requested by the Commission or its staff.
This certification is deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section,
nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

69

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the

undersigned, thereunto duly authorized.

SIGNATURES

Date: March 21, 2024

By:

XENETIC BIOSCIENCES, INC.

/s/ JEFFREY F. EISENBERG
Jeffrey F. Eisenberg
Chief Executive Officer

POWER OF ATTORNEY AND SIGNATURES

We, the undersigned officers and directors of Xenetic Biosciences, Inc., hereby severally constitute and appoint Jeffrey F. Eisenberg, our true and lawful attorney, with
full power to him, to sign for us in our names in the capacities indicated below, all amendments to this report, and generally to do all things in our names and on our behalf in
such capacities to enable Xenetic Biosciences, Inc. to comply with the provisions of the Securities Exchange Act of 1934, as amended, and all requirements of the Securities
and Exchange Commission.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the

capacities indicated below on the 21st day of March, 2024.

Signature

Title(s)

/s/ JEFFREY F. EISENBERG
Jeffrey F. Eisenberg
Date: March 21, 2024

/s/ JAMES PARSLOW
James Parslow
Date: March 21, 2024

/s/ GRIGORY BORISENKO
Grigory Borisenko
Date: March 21, 2024

/s/ JAMES CALLAWAY
James Callaway
Date: March 21, 2024

/s/ FIRDAUS JAL DASTOOR
Firdaus Jal Dastoor
Date: March 21, 2024

/s/ DMITRY GENKIN
Dmitry Genkin
Date: March 21, 2024

/s/ ROGER KORNBERG
Roger Kornberg
Date: March 21, 2024

/s/ ADAM LOGAL
Adam Logal
Date: March 21, 2024

Moshe Mizrahy
Date: March 21, 2024

/s/ ALEXEY VINOGRADOV
Alexey Vinogradov
Date: March 21, 2024

Chief Executive Officer and Director
(Principal Executive Officer)

Chief Financial Officer
(Principal Financial Officer and Principal Accounting Officer)

Director

Director

Director

Director

Director

Director

Director

Director

70

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 4.1

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12
OF THE SECURITIES EXCHANGE ACT OF 1934

When used herein, the terms the “Company”, “we,” “our,” and “us” refer to Xenetic Biosciences, Inc.

The following summary describes our capital stock and the material provisions of our articles of incorporation, as amended, and our amended and restated bylaws. Because the
following is only a summary, it does not contain all of the information that may be important to you. For a complete description, you should refer to our articles of
incorporation, as amended, and our amended and restated bylaws, copies of which are incorporated by reference as exhibits to our Annual Report on Form 10-K.

DESCRIPTION OF CAPITAL STOCK

Our charter provides that we may issue up to 10,000,000 shares of Common Stock, $0.001 par value per share (the “Common Stock”), and 10,000,000 shares of preferred
stock, $0.001 par value per share, 1,000,000 of which are designated as Series A Preferred Stock, 2,500,000 of which are designated as Series B Preferred Stock, and 6,500,000
of which shares of preferred stock are undesignated. Under Nevada law, stockholders are not generally liable for our debts or obligations.

DESCRIPTION OF COMMON STOCK

Voting Rights

Common Stock is entitled to one vote per share on all matters submitted to a vote of the stockholders, including the election of directors. Except as otherwise required by law or
provided in any resolution adopted by our board of directors with respect to any series of preferred stock, the holders of our Common Stock will possess all voting power.
Generally, all matters to be voted on by stockholders must be approved by a majority (or, in the case of election of directors, by a plurality) of the votes entitled to be cast by all
shares of our Common Stock that are present in person or represented by proxy, subject to any voting rights granted to holders of any preferred stock. Our stockholders do not
have cumulative voting rights in the election of directors. Holders of our Common Stock representing 50% of our capital stock issued, outstanding and entitled to vote,
represented in person or by proxy, are necessary to constitute a quorum at any meeting of our stockholders. A vote by the holders of a majority of our outstanding shares is
required to effectuate certain fundamental corporate changes such as liquidation, merger or an amendment to our charter.

Dividends

Subject to the preferential rights of any other class or series of shares of stock created from time to time by our board of directors from time to time, the holders of shares of our
Common Stock will be entitled to such cash dividends, non-cumulative, as may be declared from time to time by our board of directors from funds available therefore. We will
not pay any dividends on shares of Common Stock (other than dividends in the form of Common Stock) unless and until such time as we pay dividends on our preferred stock
on an as-converted basis.

Liquidation

Subject to the preferential rights of any other class or series of shares of stock created from time to time by our board of directors, upon liquidation, dissolution or winding up,
the holders of shares of our Common Stock will be entitled to share ratably in the assets of the Company available for distribution to such holders.

1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Rights and Preferences

In the event of any merger or consolidation with or into another company in connection with which shares of our Common Stock are converted into or exchangeable for shares
of stock, other securities or property (including cash), all holders of our Common Stock will be entitled to receive the same kind and amount of shares of stock and other
securities and property (including cash). Holders of our Common Stock have no pre-emptive, conversion, subscription or other rights and there are no redemption or sinking
fund provisions applicable to our Common Stock. The rights, preferences and privileges of the holders of our Common Stock are subject to and may be adversely affected by
the rights of the holders of shares of any series of our preferred stock that we may designate in the future.

Fully Paid and Nonassessable

All of our outstanding shares of Common Stock are duly authorized, validly issued, fully paid and nonassessable.

Exchange Listing

Our Common Stock is traded on the Nasdaq Capital Market under the trading symbol “XBIO.”

DESCRIPTION OF PURCHASE WARRANTS

The following summary of certain terms and provisions of warrants to purchase approximately 2,100 shares of the Common Stock outstanding as of December 31, 2023 (the
“Purchase Warrants”) is not complete and is subject to, and qualified in its entirety by the provisions of, the Purchase Warrants. For a complete description, you should refer to
the form of Purchase Warrant, a copy of which is incorporated by reference as an exhibit to our Annual Report on Form 10-K.

Exercisability

The Purchase Warrants are exercisable beginning on the date of original issuance and at any time up to the date that is five years after their original issuance (or July 17, 2024).
The Purchase Warrants will be exercisable, at the option of each holder, in whole or in part by delivering to us a duly executed exercise notice and, at any time a registration
statement registering the issuance of the shares of Common Stock underlying the Purchase Warrants under the Securities Act of 1933, as amended (the “Securities Act”) is
effective and available for the issuance of such shares, or an exemption from registration under the Securities Act is available for the issuance of such shares, by payment in full
in immediately available funds for the number of shares of Common Stock purchased upon such exercise. If a registration statement registering the issuance of the shares of
Common Stock underlying the Purchase Warrants under the Securities Act is not effective or available and an exemption from registration under the Securities Act is not
available for the issuance of such shares, the holder may, in its sole discretion, elect to exercise the Purchase Warrant through a cashless exercise, in which case the holder
would receive upon such exercise the net number of shares of Common Stock determined according to the formula set forth in the Purchase Warrant. In addition, the Purchase
Warrant may be exercised on a cashless basis beginning 30 days from the pricing of the Purchase Warrant (“Cashless Date”) if the VWAP (as defined in the Purchase Warrant)
of the Common Stock on any Trading Day (as defined in the Purchase Warrant) on or after the Cashless Date fails to exceed the exercise price in effect on such date (as may be
subject to adjustment). The number of shares of Common Stock issuable in such cashless exercise shall equal the number of shares of Common Stock that would be issuable
upon exercise of the Purchase Warrant in accordance with it terms if such exercise were by means of a cash exercise. No fractional shares of Common Stock will be issued in
connection with the exercise of a Purchase Warrant. In lieu of fractional shares, we will pay the holder an amount in cash equal to the fractional amount multiplied by the
exercise price.

Exercise Limitation

A holder will not have the right to exercise any portion of the Purchase Warrant if the holder (together with its affiliates) would beneficially own in excess of 4.99% (or, upon
election of the holder, 9.99%) of the number of shares of our Common Stock outstanding immediately after giving effect to the exercise, as such percentage ownership is
determined in accordance with the terms of the Purchase Warrants. However, any holder may increase or decrease such percentage, provided that any increase will not be
effective until the 61st day after such election.

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Exercise Price

The Purchase Warrants will have an exercise price of $130.00 per share. The exercise price is subject to appropriate adjustment in the event of certain stock dividends and
distributions, stock splits, stock combinations, reclassifications or similar events affecting our Common Stock and also upon any distributions of assets, including cash, stock or
other property to our stockholders.

Transferability

Subject to applicable laws, the Purchase Warrants may be offered for sale, sold, transferred or assigned without our consent.

Exchange Listing

The Purchase Warrants are traded on the Nasdaq Capital Market under the symbol “XBIOW.”

Fundamental Transactions

If a fundamental transaction occurs, then the successor entity will succeed to, and be substituted for us, and may exercise every right and power that we may exercise and will
assume all of our obligations under the Purchase Warrants with the same effect as if such successor entity had been named in the Purchase Warrant itself. If holders of our
Common Stock are given a choice as to the securities, cash or property to be received in a fundamental transaction, then the holder shall be given the same choice as to the
consideration it receives upon any exercise of the Purchase Warrant following such fundamental transaction.

Rights as a Stockholder

Except as otherwise provided in the Purchase Warrants or by virtue of such holder’s ownership of shares of our Common Stock, the holder of a Purchase Warrant does not have
the rights or privileges of a holder of our Common Stock, including any voting rights, until the holder exercises the Purchase Warrant.

ANTI-TAKEOVER EFFECTS

Certain provisions of the Company’s articles of incorporation, as amended, the Company’s amended and restated bylaws, and the Nevada Revised Statutes (the “NRS”) may be
deemed to have an anti-takeover effect. Such provisions may delay, deter or prevent a tender offer or takeover attempt that a stockholder might consider to be in that
stockholder’s best interests, including attempts that might result in a premium over the market price for the shares held by stockholders.

The NRS permits, if authorized by the Company’s articles of incorporation, as amended, the issuance of blank check preferred stock with preferences, limitations and relative
rights determined by a corporation’s board of directors without stockholder approval.

The Company’s articles of incorporation, as amended, currently authorizes the issuance of blank check preferred stock, of which 6,500,000 preferred shares are available for
future issuance in one or more series to be issued from time to time.

The Company has opted out of NRS 78.411 to 78.444, which prohibits Nevada corporations from engaging in any “combination” with an “interested stockholder” for a period
of two years following the date that the stockholder became an “interested stockholder” unless prior to that time the Board of Directors of the corporation approved either the
“combination” or the transaction which resulted in the stockholder becoming an “interested stockholder.”

Each of the foregoing may have the effect of preventing or rendering more difficult or costly, the completion of a takeover transaction that stockholders might view as being in
their best interests.

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Exhibit 21.1

SUBSIDIARIES OF REGISTRANT

Subsidiary

Country / State of Incorporation

Xenetic Biosciences (UK), Ltd.

United Kingdom registered company

Lipoxen Technologies, Ltd.

United Kingdom registered company

Xenetic Bioscience, Inc.

Delaware

SymbioTec, GmbH

Hesperix S.A.

German registered company

Swiss registered company

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 23.1

INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM’S CONSENT

We consent to the incorporation by reference in the Registration Statement of Xenetic Biosciences, Inc. on Form S-8 (File Nos. 333-261956, 333-237529, 333-222272 and 333-
218024) and on Form S-3 (File Nos. 333-260201, 333-258810, and 333-233769) of our report dated March 21, 2024, with respect to our audits of the consolidated financial
statements of Xenetic Biosciences, Inc. as of December 31, 2023 and 2022 and for each of the two years in the period ended December 31, 2023, which report is included in
this Annual Report on Form 10-K of Xenetic Biosciences, Inc. for the year ended December 31, 2023.

/s/ Marcum LLP

Marcum LLP
Boston, Massachusetts
March 21, 2024

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER
PURSUANT TO EXCHANGE ACT RULES 13a-14(a) AND 15d-14(a),
AS ADOPTED PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Jeffrey F Eisenberg, certify that:

1.

2.

3.

4.

I have reviewed this annual report on Form 10-K of Xenetic Biosciences, Inc.;

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;

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 registrant as of, and for, the periods presented in this report;

The registrant’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 registrant and have:

(a)

(b)

(c)

(d)

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 registrant, 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;

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;

Evaluated the effectiveness of the registrant’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

Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the
registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal
control over financial reporting; and

5.

The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s
auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)

(b)

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 registrant’s ability to record, process, summarize and report financial information; and

Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial
reporting.

Dated: March 21, 2024

By: /s/ Jeffrey F Eisenberg
Jeffrey F. Eisenberg
Principal Executive Officer

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 31.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER
PURSUANT TO EXCHANGE ACT RULES 13a-14(a) AND 15d-14(a),
AS ADOPTED PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, James Parslow, certify that:

1.

2.

3.

4.

I have reviewed this annual report on Form 10-K of Xenetic Biosciences, Inc.;

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;

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 registrant as of, and for, the periods presented in this report;

The registrant’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 registrant and have:

(a)

(b)

(c)

(d)

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 registrant, 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;

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;

Evaluated the effectiveness of the registrant’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

Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the
registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal
control over financial reporting; and

5.

The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s
auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)

(b)

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 registrant’s ability to record, process, summarize and report financial information; and

Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial
reporting.

Dated: March 21, 2024

By: /s/ James Parslow
James Parslow
Principal Financial Officer

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 32.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of Xenetic Biosciences, Inc. (the “Company”) for the fiscal year ended December 31, 2023, as filed with the Securities and
Exchange Commission on the date hereof (the “Report”), we, the undersigned officers of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

1.

2.

The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: March 21, 2024

/s/ Jeffrey F. Eisenberg            
Jeffrey F. Eisenberg
Chief Executive Officer
(Principal Executive Officer)

/s/James Parslow            
James Parslow
Chief Financial Officer
(Principal Financial Officer)

 
 
 
 
 
 
 
 
 
 
 
Exhibit 97.1

XENETIC BIOSCIENCES, INC.
Policy Regarding the Mandatory Recovery of Compensation
Effective October 2, 2023

I. Applicability and Administration. This Policy Regarding the Mandatory Recovery of Compensation (the “Policy”) applies to any Incentive Compensation paid to
the Executive Officers of Xenetic Biosciences, Inc. (the “Company”). This Policy is intended to comply with and be interpreted in accordance with the requirements of
Listing Rule 5608 (“Rule 5608”) of the Nasdaq Stock Market LLC (“Nasdaq”). This Policy shall be administered by the Compensation Committee (the “Committee”)
of  the  Board  of  Directors  of  the  Company  (the  “Board”)  and  the  Committee  is  authorized  to  make  all  determinations  necessary,  appropriate  or  advisable  for  the
administration of this Policy, to engage, at the Company’s expense, such counsel, advisors and agents and to direct the Company’s officers and other employees to take
any actions necessary and appropriate to effectuate this Policy. Any determinations made by the Committee shall be final and binding on all affected individuals. The
provisions of Rule 5608 shall prevail in the event of any conflict between the text of this Policy and such section. This Policy shall apply to all Incentive Compensation
Received on or after October 2, 2023 (the “Effective Date”). Certain capitalized terms are defined in Section IV hereof.

II. Recovery.

a. Triggering Event.

Except as provided herein and subject to Section II(b) below, in the event that the Company is required to prepare a Financial Restatement, the Company
shall recover the Recoverable Amount of any Incentive Compensation Received by a current or former Executive Officer during the Look-Back Period.
The  Recoverable  Amount  shall  be  repaid  to  the  Company  within  a  reasonable  time  after  the  current  or  former  Executive  Officer  is  notified  of  the
Recoverable Amount  as  set  forth  in  Section  II(c)  below.  For  the  sake  of  clarity,  the  recovery  rule  in  this  Section  II(a)  shall  apply  regardless  of  any
misconduct, fault, or illegal activity of the Company, the Executive Officer, the Board or any committee thereof.

b. Compensation Subject to Recovery.

i.

Incentive Compensation subject to mandatory recovery under Section II(a) includes any Incentive Compensation Received by an Executive

Officer on or after the Effective Date:

a. After beginning service as an Executive Officer;

b. Who served as an Executive Officer at any time during the performance period for that Incentive Compensation; and

c. During the Look-Back Period.

ii.

As  used  in  this  Section  II(b),  Incentive  Compensation  is  deemed  “Received”  in  the  fiscal  period  that  the  Financial  Reporting  Measure
specified in the applicable Incentive Compensation award is attained, even if the payment or grant of the Incentive Compensation occurs after the
end of that period. This Section II(b) will only apply to Incentive Compensation Received after the Effective Date.

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c. Recoupment.

i.

The Committee shall determine, at its sole discretion, the method for recouping Incentive Compensation, which may include (A) requiring
reimbursement  of  Incentive  Compensation  previously  paid;  (B)  seeking  recovery  of  any  gain  realized  on  the  vesting,  exercise,  settlement,  sale,
transfer, or other disposition of any equity-based awards; (C) deducting the amount to be recouped from any compensation otherwise owed by the
Company to the Executive Officer; and/or (D) taking any other remedial and recovery action permitted by law, as determined by the Committee.

d. Recoverable Amount.

i.

ii.

The “Recoverable Amount” is equal to the amount of Incentive Compensation Received in excess of the amount of Incentive Compensation that
would have been Received had it been determined based on the restated amounts in the Financial Restatement, without regard to taxes paid by the
Company or the Executive Officer.

In the event the Incentive Compensation is based on a measurement that is not subject to mathematical recalculation (including, without limitation,
stock price and total shareholder return), the Recoverable Amount shall be based on a reasonable estimate of the effect of the Financial Restatement on
such measurement, as determined by the Committee, which shall be set forth in writing.

iii.

To  the  extent  that  an  Executive  Officer  has  already  reimbursed  the  Company  any  portion  of  the  Recoverable  Amount  under  any  law,  rule,

regulation or policy, such amount shall be credited to the Recoverable Amount under this Policy.

e. Exceptions to Applicability.

The Company or a delegate thereof must recover the Recoverable Amount of Incentive Compensation as stated above in Section II(a), unless the Committee
makes a determination that recovery would be impracticable, and at least one of the following applies:

i.

ii.

III. Miscellaneous.

The direct expense paid to a third party to assist in enforcing recovery would exceed the Recoverable Amount, and a reasonable attempt to recover

the Recoverable Amount has already been made and documented; or

Recovery would likely cause an otherwise tax-qualified retirement plan under which benefits are broadly available to employees of the Company,

to fail to meet the qualification requirements of 26 U.S.C. 401(a)(13) or 26 U.S.C. 411(a) and regulations thereunder.

a. The  Committee  or  the  Board  of  Directors  of  the  Company,  as  applicable,  may  require  that  any  incentive  plan,  employment  agreement,  equity  award
agreement,  or  similar  agreement  entered  into  on  or  after  the  date  hereof  shall,  as  a  condition  to  the  grant  of  any  benefit  thereunder,  require  an  Executive
Officer to agree to abide by the terms of this Policy, including the repayment of the Recoverable Amount of erroneously awarded Incentive Compensation.
This Policy shall be binding and enforceable against all Executive Officers and, to the extent required by applicable law, rule or regulation, or guidance from
the Securities and Exchange Commission (the “SEC”) or NASDAQ, their beneficiaries, heirs, executors, administrators or other legal representatives. This
Policy is to be applied to the fullest extent required by applicable law, regulation and NASDAQ listing standards. Any right of recovery under this Policy is in
addition  to,  and  not  in  lieu  of,  any  other  remedies  or  rights  of  recovery  that  may  be  available  to  the  Company  under  applicable  law,  regulation  or  rule  or
pursuant to the terms of any policy of the Company or any provision in any employment agreement, equity award agreement, compensatory plan, agreement
or other arrangement.

2

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
b. The  Company  shall  not  indemnify  any  Executive  Officer  or  other  individual  against  the  loss  of  any  incorrectly  awarded  or  otherwise  recouped  Incentive

Compensation.

c. The Company shall comply with applicable compensation recovery policy disclosure rules of the Securities and Exchange Commission.

IV. Definitions.

a.

Incentive Compensation. “Incentive Compensation” means any compensation that is granted, earned, or vests based wholly or in part upon the attainment of a
Financial Reporting Measure, but does not include awards that are earned or vest based solely on the continued provision of services for a period of time.

b. Financial  Reporting  Measure.  “Financial  Reporting  Measure”  means  any  reporting  measure  that  is  determined  and  presented  in  accordance  with  the
accounting principles used in preparing the Company’s financial statements, and any measures that are derived wholly or in part from such measures and need
not be presented with the Company’s financial statements. Stock price and total shareholder return are considered to be Financial Reporting Measures for
purposes of this Policy.

c. Financial Restatement. A “Financial Restatement” means any accounting restatement due to the material noncompliance of the Company with any financial
reporting  requirement  under  applicable  securities  laws,  including  any  required  accounting  restatement  to  correct  an  error  in  previously  issued  financial
statements  that  (i)  is  material  to  the  previously  issued  financial  statements  (commonly  referred  to  as  a  “Big  R”  restatement),  or  (ii)  is  not  material  to
previously issued financial statements, but would result in a material misstatement if the error was left uncorrected in the current period or the error correction
were recognized in the current period (commonly referred to as a “little r” restatement). For purposes of this Policy, the date of a Financial Restatement will
be deemed to be the earlier of (i) the date the Board, a committee of the Board, the officer or officers authorized to take such action if Board action is not
required concludes, or reasonably should have concluded, that the Company is required to prepare a Financial Restatement, and (ii) the date a court, regulator,
or other legally authorized body directs the Company to prepare Financial Restatement.

d. Executive Officer. “Executive Officer” shall mean the Company’s Chief Executive Officer, President, Chief Financial Officer, or principal accounting officer
(or, if there is no such accounting officer, the Controller), any vice-president of the Company in charge of a principal business unit, division or function (such
as  sales,  administration  or  finance),  and  any  other  officer  or  person  who  performs  a  significant  policy-making  function  for  the  Company.  For  the  sake  of
clarity, ”Executive Officer” includes at a minimum executive officers identified by the Board pursuant to 17 CFR 229.401(b).

e. Look-Back  Period.  The  “Look-Back  Period”  means  the  three  completed  fiscal  years  immediately  preceding  the  date  of  a  Financial  Restatement  and  any

transition period as specified in Rule 5608.

3