Quarterlytics / Healthcare / Biotechnology / MeiraGTx Holdings plc

MeiraGTx Holdings plc

mgtx · NASDAQ Healthcare
Claim this profile
Ticker mgtx
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Employees 375
← All annual reports
FY2021 Annual Report · MeiraGTx Holdings plc
Sign in to download
Loading PDF…
Table of Contents

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 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, 2021
OR
☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF

1934

For the transition period from to
Commission file number: 001-38520

MEIRAGTX HOLDINGS PLC

(Exact name of registrant as specified in its charter)

Cayman Islands
(State or other jurisdiction of
incorporation or organization)

450 East 29th Street, 14th Floor
New York, NY
(Address of principal executive offices)

98-1448305
(I.R.S. Employer
Identification No.)

10016
(Zip Code)

(646) 860-7985
(Registrant’s telephone number, including area code)

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

Title of each class
Ordinary Shares, $0.00003881 par value per share

Trading Symbol(s)
MGTX

Name of exchange on which registered
The Nasdaq Global Select 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 Exchange 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, 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

☐
☒

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 (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.  ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒
As of June 30, 2021, the last business day of the registrant's most recently completed second fiscal quarter, the aggregate market value of the registrant’s ordinary shares held by non-affiliates of the
registrant was approximately $458,612,481 (based upon the closing sale price of the registrant’s ordinary shares on that date on the Nasdaq Global Select Market).

As of March 8, 2022, the registrant had 44,677,614 ordinary shares outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s definitive Proxy Statement relating to its 2022 annual shareholder meeting to be filed with the SEC within 120 days after the end of the fiscal year ended

December 31, 2021 are incorporated herein by reference in Part III of this Annual Report on Form 10-K.

Table of Contents

PART I

CONTENTS

Business

Item 1.
Item 1A. Risk Factors
Item 1B. Unresolved Staff Comments
Item 2.
Item 3.
Item 4.

Properties
Legal Proceedings
Mine Safety Disclosures

PART II

Item 5.

Market For Registrant’s Common Equity, Related Stockholder Matters And Issuer Purchases Of
Equity Securities
Reserved
Management’s Discussion And Analysis Of Financial Condition And Results Of Operations

Item 6.
Item 7.
Item 7A. Quantitative And Qualitative Disclosures About Market Risk
Item 8.
Item 9.
Item 9A. Controls And Procedures
Item 9B. Other Information
Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

Financial Statements And Supplementary Data
Changes In And Disagreements With Accountants On Accounting And Financial Disclosure

PART III

Item 10. Directors, Executive Officers And Corporate Governance
Item 11.
Item 12.

Executive Compensation
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 Accountant Fees And Services

PART IV

Item 15.
Item 16.

Exhibits and Financial Statement Schedules
Form 10-K Summary

Page
4
4
47
106
106
107
107
108

108
109
109
122
F-1
119
119
120
120
121
121
121

121
122
122
123
123
126

Table of Contents

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K (the “Form 10-K”) contains forward-looking statements that can involve substantial
risks and uncertainties. All statements other than statements of historical facts contained in this Form 10-K, including
statements regarding our future results of operations and financial position, business strategy, prospective products,
product approvals, research and development costs, future revenue, timing and likelihood of success, plans and objectives
of management for future operations, future results of anticipated products and prospects, plans and objectives of
management are forward-looking statements. These statements involve known and unknown risks, uncertainties and other
important factors that may cause our actual results, performance or achievements to be materially different from any future
results, performance or achievements expressed or implied by the forward-looking statements.

In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “expect,” “plan,”
“anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential,”
“would” or “continue” or the negative of these terms or other similar expressions. The forward-looking statements in this
Form 10-K are only predictions. We have based these forward-looking statements largely on our current expectations and
projections about future events and financial trends that we believe may affect our business, financial condition and results
of operations. These forward-looking statements speak only as of the date of this Form 10-K and are subject to a number of
risks, uncertainties and assumptions described under the sections in this Form 10-K entitled “Item 1A. Risk Factors” and
“Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and elsewhere in this
Form 10-K. Because forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be
predicted or quantified and some of which are beyond our control, you should not rely on these forward-looking statements
as predictions of future events. The events and circumstances reflected in our forward-looking statements may not be
achieved or occur and actual results could differ materially from those projected in the forward-looking statements.
Moreover, we operate in an evolving environment. New risk factors and uncertainties may emerge from time to time, and it
is not possible for management to predict all risk factors and uncertainties. Except as required by applicable law, we do
not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new
information, future events, changed circumstances or otherwise. Thus, one should not assume that our silence over time
means that actual events are bearing out as expressed or implied in such forward-looking statements.

You should read this Form 10-K and the documents that we reference in this Form 10-K and have filed as exhibits to this
Form 10-K, completely and with the understanding that our actual future results may be materially different from what we
expect.

In addition, statements that “we believe” and similar statements reflect our beliefs and opinions on the relevant subject.
These statements are based upon information available to us as of the date of this Form 10-K, and while we believe such
information forms a reasonable basis for such statements, such information may be limited or incomplete, and our
statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all relevant
information. These statements are inherently uncertain and investors are cautioned not to unduly rely upon these
statements. These statements should not be relied upon as representing our views as of any date subsequent to the date of
this Form 10-K.

1

Table of Contents

RISK FACTOR SUMMARY

We  are  providing  the  following  summary  of  the  principal  risk  factors  contained  in  this  Form  10-K  to  enhance  the
readability and accessibility of our risk factor disclosures. We encourage you to carefully review in their entirety the full
risk  factors  set  forth  in  the  section  of  this  Form  10-K  captioned  “Item  1A.  Risk  Factors”  for  additional  information
regarding  the  material  factors  that  make  an  investment  in  our  ordinary  shares  speculative  or  risky.  These  risks  and
uncertainties include, among others, the following:

• We have incurred significant losses since inception and anticipate that we will incur continued losses for the

foreseeable future, and may never achieve or maintain profitability.

• We will require additional capital to fund our operations, which may not be available on acceptable terms, if

at all.

• We are heavily dependent on the success of our Most Advanced Product Candidates (as defined in “Item 1A.
Risk  Factors”),  which  are  still  in  development,  and  if  none  of  them  receive  regulatory  approval  or  are
successfully commercialized, our business may be harmed.

•

•

•

•

•

The outbreak of the novel coronavirus disease, COVID-19, or other pandemic, epidemic or outbreak of an
infectious  disease  may  materially  and  adversely  impact  our  business,  including  our  preclinical  studies,
clinical trials, manufacturing capabilities and regulatory approvals.

It  is  difficult  to  predict  the  time  and  cost  of  product  candidate  development  on  our  novel  gene  therapy
platform. Very few gene therapies have been approved in the United States or in Europe.

Because  gene  therapy  is  novel  and  the  regulatory  landscape  that  governs  any  product  candidates  we  may
develop is uncertain and may change, we cannot predict the time and cost of obtaining regulatory approval, if
we receive it at all, for any product candidates we may develop.

Clinical  trials  are  expensive,  time-consuming,  difficult  to  design  and  implement,  and  involve  an  uncertain
outcome. Further, we may encounter substantial delays in our clinical trials.

The affected populations for our product candidates may be smaller than we or third parties currently project,
which may affect the addressable markets for our product candidates.

• We  and  our  contract  manufacturers  for  plasmid  are  subject  to  significant  regulation  with  respect  to
manufacturing our products. Our manufacturing facilities and the third-party manufacturing facilities which
we rely on may not continue to meet regulatory requirements and have limited capacity.

•

Enacted  and  future  healthcare  legislation  may  increase  the  difficulty  and  cost  for  us  to  obtain  marketing
approval of and commercialize our product candidates and may affect the prices we may set.

• We are subject to government laws, regulations, standards and other legal obligations relating to data privacy
and security. Compliance with these requirements is complex and costly and our actual or perceived failures
to comply could materially harm our business.

• We face significant competition in an environment of rapid technological change, and there is a possibility
that our competitors may achieve regulatory approval before us or develop therapies that are safer or more
advanced  or  effective  than  ours,  which  may  harm  our  financial  condition  and  our  ability  to  successfully
market or commercialize any product candidates we may develop.

2

Table of Contents

• We depend on proprietary technology licensed from others. If we lose our existing licenses or are unable to
acquire or license additional proprietary rights from third parties, we may not be able to continue developing
our product candidates.

•

If we are unable to obtain and maintain patent protection for our technology and product candidates or if the
scope of the patent protection obtained is not sufficiently broad, we may not be able to compete effectively in
our markets.

• We will need to expand our organization, and we may experience difficulties in managing this growth, which

could disrupt our operations.

•

Our  future  success  depends  on  our  ability  to  retain  our  key  personnel  and  to  attract,  retain  and  motivate
qualified personnel.

BASIS OF PRESENTATION

Unless  the  context  otherwise  requires,  references  in  this  Form  10-K  to  “Meira,”  “MeiraGTx,”  “we,”  “us”,  “our”  or  “the
Company” refer to MeiraGTx Holdings plc and its subsidiaries.

We have proprietary rights to trademarks, trade names and service marks appearing in this Form 10-K that are important to
our  business.  Solely  for  convenience,  the  trademarks,  trade  names  and  service  marks  may  appear  in  this  Form  10-K
without the ® and TM symbols, but any such references are not intended to indicate, in any way, that we forgo or will not
assert,  to  the  fullest  extent  under  applicable  law,  our  rights  or  the  rights  of  the  applicable  licensors  to  these  trademarks,
trade  names  and  service  marks.  All  trademarks,  trade  names  and  service  marks  appearing  in  this  Form  10-K  are  the
property of their respective owners.

INDUSTRY AND OTHER DATA

We  obtained  the  industry,  market  and  competitive  position  data  in  this  Form  10-K  from  our  own  internal  estimates  and
research  as  well  as  from  industry  and  general  publications  and  research,  surveys  and  studies  conducted  by  third  parties.
Industry publications, studies and surveys generally state that they have been obtained from sources believed to be reliable,
although  they  do  not  guarantee  the  accuracy  or  completeness  of  such  information.  While  we  believe  that  each  of  these
studies and publications is reliable, we have not independently verified market and industry data from third-party sources.
While we believe our internal company research as to such matters is reliable and the market definitions are appropriate,
neither such research nor these definitions have been verified by any independent source.

3

Table of Contents

ITEM 1.  BUSINESS

Overview

PART I

We are a vertically integrated, clinical stage gene therapy company with six programs in clinical development and 

a broad pipeline of preclinical and research programs.  We have core capabilities in viral vector design and optimization 
and gene therapy manufacturing, as well as a potentially transformative gene regulation technology.  Led by an experienced 
management team, we have taken a portfolio approach by licensing, acquiring and developing technologies that give us 
depth across both product candidates and indications.  The Company’s initial focus is on three distinct areas of unmet 
medical need: ocular, including inherited retinal diseases and large degenerative ocular diseases, neurodegenerative 
diseases and severe forms of xerostomia. Though initially focusing on the eye, central nervous system and salivary gland, 
we intend to expand our focus in the future to develop additional gene therapy treatments for patients suffering from a 
range of serious diseases.

We own and operate a flexible and scalable viral vector manufacturing facility in London, United Kingdom that 

we expect can supply our current ophthalmology, neurodegenerative disease and salivary gland clinical and preclinical 
programs through regulatory approval and, should they be approved, provide sufficient capacity for commercial 
production.  Completed in early 2018 and designed to meet global regulatory requirements, including the current good 
manufacturing practices, or cGMP, required by the U.S. Food and Drug Administration, or FDA, our 29,000 square foot 
facility has two cell production suites, three independent viral vector production suites providing multi-product and multi-
viral vector manufacturing capabilities and an integrated, flexible fill-and-finish suite.  In May 2018, we were granted a 
license to manufacture gene therapy product candidates in our cGMP compliant manufacturing facility by the United 
Kingdom’s Medicines and Healthcare products Regulatory Agency, or MHRA.  The MHRA re-certified the facility in the
second quarter of 2020.

We have expanded our manufacturing capabilities by acquiring the buildings for our second cGMP viral vector 
manufacturing facility and our first cGMP plasmid and DNA production facility in Shannon, Ireland. We completed the 
acquisitions in January 2021.  The campus encompasses 150,000 square feet and will include a high capacity cGMP 
manufacturing hub for clinical through commercial supply, clinical supply storage, quality control laboratories for global 
release, up to twelve viral vector production suites, fully scalable automated fill and finish facilities, an extensive 
warehouse and a separate cGMP plasmid and DNA manufacturing facility.  We believe building our second viral vector 
manufacturing facility and bringing cGMP plasmid and DNA production in-house will provide greater flexibility and 
efficiency as we advance our product candidates through development, and should they be approved, commercial 
production.

We have also established a comprehensive platform for the efficient clinical development of the next generation of 

gene therapies and manufacturing in accordance with cGMP.  Our deep understanding of disease models informs our 
development of potency assays for the cGMP production of our product candidates, and our teams experienced in viral 
vector design and optimization work closely with our process development team to design viral vectors and develop 
proprietary production cell lines for efficient scaling of manufacturing processes.

We are also developing a potentially transformative technology to precisely and specifically control gene therapy 

expression levels via dose-response to orally delivered small molecules.  The aim of this gene regulation platform is to 
transform gene therapy into a generalizable delivery mechanism for biologic drugs using a small molecule “switch” for 
temporal control.  We believe the capacity for temporal control of gene therapy products has the potential to transform the 
gene therapy landscape by opening up new treatment possibilities.

4

Table of Contents

Our Pipeline

Our initial focus is on three distinct areas of unmet medical need: ocular diseases, including inherited retinal 

diseases, or IRDs, as well as large degenerative ocular diseases, severe forms of xerostomia and neurodegenerative 
diseases.  Utilizing our product development platform, we have assembled a pipeline of gene therapies to treat these serious 
diseases.  Our criteria for selecting our initial product candidates included:

● unmet medical need;

● high potential for meaningful clinical benefit;

● promising preclinical data using multiple animal models as well as human stem cell derived organoids;

● compartmentalized anatomy of target tissue and the partially immune protected nature of target tissue; and

● understanding of the disease state from natural history studies and detailed long-term characterization of

patients prior to entry into gene therapy treatment studies.

A summary of our product candidates and the status of such product candidates as of March 1, 2022 is described 

below.  We retain worldwide development and commercialization rights to all of our product candidates, with the exception 
of AAV-CNGB3, AAV-CNGA3 and botaretigene sparoparvovec, formerly referred to as AAV-RPGR, which are subject to 
a strategic Collaboration, Option and License Agreement (the “Collaboration Agreement”) that we executed with Janssen 
Pharmaceuticals, Inc. (“Janssen”), one of the Janssen Pharmaceutical Companies of Johnson & Johnson on January 30,
2019.

5

Table of Contents

In addition to these clinical and preclinical programs, we have preclinical and research programs in other

indications and novel molecular technologies that we aim to advance into clinical development, including:

● geographic atrophy age related macular degeneration, or dry AMD—use of gene therapy technology to

introduce light sensitive molecules into rod photoreceptors in order to restore some aspects of vision lost in
this disease;

● other ocular conditions—glaucoma and uveitis;

● amyotrophic lateral sclerosis, or ALS—targeting dysregulation of neuronal RNA processing, which we

believe may lead to the degeneration of motor neurons that occurs in ALS;

● Alzheimer’s disease—targeting endosomal trafficking, which is a central mechanism that we believe

underlies Alzheimer’s disease;

● central nervous systems/peripheral nervous system diseases—brain-derived neurotrophic factor gene therapy
for treatment of genetic obesity disorders, as well as the development of gene therapy product candidates for
other central nervous system diseases;

● gene regulation—use of our proprietary RNA shape regulation cassette to switch gene therapy expression on

and off with small molecules, potentially transforming gene therapy technology into a delivery mechanism
for a broad array of biologic drugs; and

● inflammatory/autoimmune diseases—use of gene therapy technology for the local delivery of

immunomodulatory therapeutics, including osteoarthritis, gout and certain rare inflammatory disorders.

Our Ophthalmology Programs

Eye diseases are our first area of clinical focus and we aim to provide treatments with durable, long-term clinical 
benefit that will halt vision loss in patients.  We currently have three Phase 1/2 clinical programs targeting IRDs, including 
AAV-CNGB3 and AAV-CNGA3 for the treatment of achromatopsia, or ACHM, related to mutations in CNGB3 and
CNGA3 genes, respectively, and AAV-RPE65 for retinal dystrophy related to mutations in the RPE65 gene, or RPE65
deficiency. We have completed enrollment and dosing in all three of these programs. We also have a Phase 3 clinical
program for botaretigene sparoparvovec for the treatment of X-linked retinitis pigmentosa related to mutations in the
RPGR gene, or XLRP-RPGR.  In addition to these four programs, AAV-AIPL1 was manufactured and released for
compassionate use under an MHRA specials license in the United Kingdom, or UK, to treat patients with Leber congenital
amaurosis 4, or LCA4, caused by mutations in the AIPL1 gene.  In addition to these clinical programs in IRDs, we have 
preclinical programs that apply novel approaches to both wet and dry AMD, glaucoma and uveitis, as well as several other 
IRDs including retinol dehydrogenase 12, or RDH12, mutation-associated retinal dystrophy.

We chose diseases of the eye as our first area of clinical focus because we believe the eye is ideally suited for gene

therapy for the following reasons.

● The eye is easily accessible and has highly compartmentalized anatomy, which allows for accurate delivery

of vectors to specific tissues using direct visualization and microsurgical techniques.

● The structure of the eye allows for efficient delivery to specific cell subtypes with small volumes of vector,

making the dose per patient much lower than is needed for systemic treatment.

6

Table of Contents

● Anatomical barriers and unique structure of the eye make the immune response to the intraocular

administration of vectors more attenuated than systemic administration.

● Largely non-dividing cell populations in the eye make good targets for potentially stable, long-term gene

delivery and expression.

● The retina, a structure in the back of the eye, is visible and there are many well validated structural and

functional readouts allowing the detailed assessment of the therapeutic impact of the gene therapy treatment.

Our strategy for developing gene therapies targeting eye diseases is to begin with a number of monogenic IRDs 

that are good candidates for gene replacement therapies and expand to more common eye diseases over time.  We have 
taken a portfolio approach to the development of IRDs because, while some of these genetic defects are rare, IRDs as a 
class are one of the most common causes of blindness in working age adults and there are multiple synergies at the clinical, 
regulatory and commercial levels between many of these diseases caused by different gene mutations.

The deep scientific and clinical understanding of IRDs driving our approach to gene therapy development helps us 

to optimize our product candidates for each specific genetic mutation and phenotype.  We develop our viral vectors by 
selecting and modifying proprietary cell specific promoters, selecting appropriate capsids for transfection of target cells 
and refining the vector for efficient production and scalable manufacturing.  Not only does this allow us to synergistically 
target a portfolio of inherited eye conditions, we also believe it has potential to be applied to the development of gene 
therapies for other diseases.

Our longstanding relationships with leading institutions in retinal disease treatment, including the Moorfields Eye

Hospital in London, the University of Michigan Kellogg Eye Center, Massachusetts Eye and Ear, the Medical College of
Wisconsin & Froedtert Hospital and the Casey Eye Institute at the Oregon Health & Science University, provide us with
access to experts whose guidance and insight informs our development strategy, as well potential patients for our clinical
trials.

We intend to leverage our platform to take advantage of the many synergies across our ophthalmology programs,
including identification, diagnosis and characterization of patients, specialized surgical techniques, clinical and regulatory
process, vector production and cGMP manufacturing.

Botaretigene Sparoparvovec for the Treatment of X-Linked Retinitis Pigmentosa Associated with Mutations in the
RPGR Gene

Retinitis pigmentosa, or RP, is a group of IRDs which represent the most common genetic cause of blindness.  The 

condition is characterized by progressive retinal degeneration and vision loss that ends in complete blindness.  RP initially 
presents as nighttime blindness during childhood or early adulthood, progressing to peripheral visual field loss and “tunnel 
vision,” central visual impairment, reduced visual acuity and, ultimately, complete blindness.

RP may be caused by mutations in any of over 100 different genes.  The most severe forms of RP are X-linked, or 
XLRP, with onset in early childhood and rapid progression to blindness generally by the time patients reach 30 to 40 years 
old.  The most frequent mutation causing XLRP is in the retinitis pigmentosa GTPase regulator gene, or RPGR. XLRP 
associated with a mutation in RPGR, or XLRP-RPGR, accounts for more than 70% of cases of XLRP.  There are estimated 
to be approximately 20,000 XLRP-RPGR patients in the United States (U.S.), Japan and Germany, France, Spain, Italy and 
the UK, or the EU5, with a little less than 50% of those patients being under the age of 40 and approximately 200 new 
cases being diagnosed annually.  We believe the availability of a therapeutic option may increase patient identification and 
the estimated prevalence of XLRP-RPGR.

7

Table of Contents

There are currently no approved treatments for XLRP.

Clinical Development of Botaretigene Sparoparvovec

We have an ongoing natural history study in XLRP-RPGR including approximately 100 patients, which allows us 

to collect structural and functional data for up to five years on prospectively defined endpoints, including functional tests, 
retinal imaging and electrophysiological assessments.  We believe access to this large population of XLRP-RPGR patients 
has enabled us to efficiently enroll appropriate patients into our XLRP clinical development program.

 Since XLRP-RPGR is a progressive disease in which the retina gradually degenerates starting in the outer, or 

peripheral, regions of the retina and initially causing “tunnel vision” with final degeneration of the central retina resulting 
in the complete loss of visual acuity and blindness that generally occurs by the time patients are 30 to 40 years old, we 
believe that the central region of the retina, including the macula and fovea, must be preserved to prevent the ultimate 
degeneration to blindness and to retain visual acuity.  To this end, we aim to deliver botaretigene sparoparvovec to this 
central region of the retina.

We conducted a Phase 1/2 clinical trial of botaretigene sparoparvovec in XLRP patients. Botaretigene

sparoparvovec was delivered via subretinal injection of up to 1mL with the potential for the surgeon to use multiple
retinotomies targeting the region of the central retina, including the macula and fovea.

In the dose escalation portion of the Phase 1/2 trial, we enrolled 13 patients, including 10 young adults and 3 

children. After we completed dosing patients in the dose escalation portion of the study, we enrolled patients in the 
randomized, controlled, extension portion of the Phase 1/2 trial. We disclosed six-month data from the dose escalation 
portion of the study as a late-breaker at the American Society of Retina Specialists 2020 Virtual Annual Meeting in July 
2020, nine-month data at EURETINA 2020 Virtual Congress in October 2020 and twelve-month data at the American 
Academy of Ophthalmology 2020 Virtual Annual Meeting in November 2020.  Data from each time point revealed that 
patients treated with low (n=3) and intermediate (n=4) dose botaretigene sparoparvovec experienced statistically significant 
improvement in retinal sensitivity. Nine-month data also indicated significant improvement in vision-guided mobility, and 
at 12-months, six of seven patients continued to show improved or stable vision in the treated eye. Each patient was treated 
with subretinal delivery of botaretigene sparoparvovec in one eye and the patient’s other eye served as an untreated control. 
The primary endpoint of the trial is safety, with secondary endpoints assessing changes in visual function at pre-specified 
timepoints post-treatment. Baseline values were determined in triplicate.  Additionally, based on the safety and efficacy
profile, the low and intermediate doses are being evaluated in the ongoing randomized, controlled, extension portion of the
Phase 1/2 study, which completed enrollment in the first half of 2020.

We disclosed additional twelve-month clinical data from the dose escalation portion of the Phase 1/2 trial as part 

of an oral presentation at the EURETINA 2021 Virtual Congress in September 2021.  The retinal function of ten adult 
males aged 18-30 years with RPGR-associated XLRP was assessed twelve months post-treatment.  For the intermediate 
dose-escalation dose cohort (n=4), intervention with botaretigene sparoparvovec in the poorer-seeing eye altered the course 
of natural disease progression.  At twelve months post-intervention, mean retinal sensitivity (MS) and volumetric analysis 
of the central 30 degrees of the retinal field (V30) in the treated eye were similar to levels observed twenty-four months 
pre-intervention, while the untreated eye showed a continued downward trajectory.  

We recently initiated our Phase 3 Lumeos clinical trial, a randomized, controlled study of botaretigene
sparoparvovec for the treatment of XLRP associated with variants in the RPGR gene.  We have begun actively dosing 
patients and additional patients are being screened and enrolled at multiple sites across North America and Europe.

The FDA has granted Fast Track and orphan drug designations to botaretigene sparoparvovec.  Competent 
authorities in the European Union, or EU, have granted Priority Medicines, or PRIME, advanced therapy medicinal 
product, or ATMP, and orphan drug designations to botaretigene sparoparvovec.

8

Table of Contents

AAV-RPE65 for the Treatment of RPE65-Associated Retinal Dystrophy

We are developing AAV-RPE65 for the treatment of retinal dystrophy associated with mutations in the RPE65

gene. RPE65-associated retinal dystrophy causes rod photoreceptor dysfunction and impaired vision from birth.  Absence 
of RPE65 results in severe dysfunction of rods and causes impaired vision in dim lighting conditions.  Although cone 
photoreceptors are generally preserved during childhood in RPE65-deficient patients, the lack of function and degeneration 
of the rods eventually results in the loss of cones and degeneration of the whole retina over time.  Consequently, most
 RPE65-associated retinal dystrophy patients experience central vision loss progressing to complete blindness by early
adulthood.

Based on an estimated prevalence of approximately one in 500,000 people in the United States suffering from

Leber congenital amaurosis, or LCA, related to mutations in the RPE65 gene, and approximately one in 70,000 people in
the United States having RP due to mutations in the RPE65 gene, RPE65-deficiency occurs in approximately one in 
125,000 people in the United States.  There are estimated to be approximately 6,000 RPE65-deficiency patients in the 
United States, Japan and EU5, with almost 30% of those patients being under the age of 30 and approximately 50 new 
cases being diagnosed annually.  We have developed a gene therapy candidate optimized for safety and potency for the 
treatment of RPE65-associated retinal dystrophy, AAV-RPE65. AAV-RPE65 is an AAV2/5 viral vector, in which a codon
optimized RPE65 gene is driven by a novel synthetic retinal pigment epithelium cell specific promoter.

The FDA has approved the first gene treatment for RPE65-associated retinal dystrophy, Luxturna, a commercially 
available product developed by Spark Therapeutics, Inc., which was purchased by Roche.  While RPE65-associated retinal 
dystrophy primarily causes a loss of rod function initially leading to impaired vision in dim light, these patients ultimately 
experience complete blindness because of degeneration of the cone rich fovea.  To prevent blindness, therefore, we believe 
it is critical to treat the central retina in order to maintain structural integrity in this region and save central vision.  We aim 
to treat as extensive an area of the central retina as possible, including the cone rich fovea.  Thus, in addition to improving 
rod function, we aim to provide sufficient RPE65 protein to the cells in the central retina to prevent the degeneration of 
both rods and cones in this region, and thereby prevent the progression to complete blindness.

Clinical Development of AAV-RPE65

We have an ongoing natural history study in patients with RPE65-associated retinal dystrophy with approximately

30 patients enrolled that allows us to collect structural and functional data on prospectively defined endpoints, including
functional tests, retinal imaging, and electrophysiological assessments.

Our Phase 1/2 clinical trial enrolled RPE65-associated retinal dystrophy patients in the UK and U.S.  Dosing in 
the Phase 1/2 clinical trial was completed in June 2018.  The primary endpoint of this open-label, dose-escalation clinical 
trial is safety.  Secondary endpoints include the outcomes of a range of functional tests, detailed structural analysis of the 
retina and quality of life measures. A total of 15 patients were treated in this clinical trial, including nine adult patients in 
three dose escalation cohorts and six pediatric patients in the pediatric extension arm of the trial.

In May 2019, we announced positive topline safety and efficacy data from the Phase 1/2 trial of AAV-RPE65.

Additional data from this study were presented at the Retina Subspecialty Day of the American Academy of
Ophthalmology Annual Meeting in October 2019.

AAV-RPE65 met the study’s primary endpoint of safety and tolerability. Additionally, AAV-RPE65 demonstrated

statistically significant improvement across several secondary endpoints assessing clinical activity. Significant
improvement in vision was demonstrated at six months after AAV-RPE65 treatment, as measured by assessments of vision-
guided mobility, retinal sensitivity, visual acuity and contrast sensitivity. Larger improvements from baseline in functional
vision were observed between treated and control eyes at lower light levels. We believe these outcomes address the core
functional manifestation of RPE65-associated retinal dystrophy, which typically causes vision

9

Table of Contents

impairment beginning in early childhood that is most pronounced in low-light conditions, and is consistent with the
proposed mechanism of action of AAV-RPE65.

We expect to initiate a Phase 3 clinical trial for AAV-RPE65 in 2022.

The FDA and European Medicines Agency, or EMA, each granted orphan status to AAV-RPE65 for the treatment
of LCA caused by mutations in the RPE65 gene.  The FDA also granted AAV-RPE65 rare pediatric disease designation for 
the treatment of inherited retinal dystrophy due to biallelic RPE65 mutations.

AAV-CNGB3 and AAV-CNGA3 for the Treatment of Achromatopsia

Achromatopsia, or ACHM, is an IRD that specifically prevents cone photoreceptors from functioning.  ACHM 

patients are legally blind from birth and usually suffer from severely reduced visual acuity of 20/200 or worse, a disabling 
sensitivity to light, or photoaversion, total color blindness and involuntary back and forth eye movements, or nystagmus. 
ACHM patients suffer significant vision loss due to the complete lack of cone function. ACHM occurs in approximately 
one in 30,000 people in the United States.  The CNGB3 and CNGA3 genes are the two most common genes that have been
identified as causing ACHM, together accounting for up to 92% of ACHM cases, with CNGB3 slightly more common than
CNGA3 in most geographic territories.

There are estimated to be approximately 12,000 patients with ACHM caused by mutations in CNGB3 in the 

United States, Japan, and the EU5, with about 25% of those patients being under the age of 18 and approximately 125 new 
cases being diagnosed annually.  We believe the availability of a therapeutic option may increase patient identification and 
the estimated prevalence of ACHM.

ACHM is predominantly a stationary disease, which means that ACHM patients’ retinas contain non-functioning 
cones that survive intact for many decades.  This is in contrast to many IRDs in which the entire retina slowly degenerates 
over a patient’s life.  This extended survival of cones with their potential for light sensitivity presents a wide window of 
opportunity to introduce a normal copy of the mutated gene via a gene therapy product candidate and thereby restore cone 
function. While the stationary nature of ACHM means that cones remain present for decades, the functional connections 
between active cones and the visual cortex in the brain are thought to become fixed in teenage years.  Therefore, we 
believe that younger individuals are likely to benefit most from gene therapy treatment for ACHM because of their greater 
visual plasticity. Another debilitating symptom of ACHM, which lasts throughout life, is photoaversion.  A disabling and 
ubiquitous symptom of ACHM, photoaversion is the avoidance of light due to discomfort in the presence of levels of light 
equivalent to a normally lit room or daylight.  ACHM patients often avoid light and wear dark glasses, which further 
diminishes their already very poor vision.  We believe it is possible that restoration of cone function in adult patients might 
have an impact on photoaversion even if brain plasticity is limited.

We believe that gene therapy treatment for ACHM in which we aim to restore cone function via a gene

replacement strategy may offer benefits across a range of ages, which we aim to define in our clinical development
programs.

We have designed specifically optimized gene therapy viral vector candidates to treat ACHM caused by mutations
in each of CNGB3 and CNGA3, with which we aim to address the majority of patients suffering from ACHM.  Our product 
candidates are delivered via subretinal injection covering the central macula region of the eye, where most of the cones in 
the retina are located.

We have an ongoing natural history study in ACHM including over 90 patients that allows us to collect structural
and functional data for up to five years on prospectively defined endpoints, including functional tests, retinal imaging and
electrophysiological assessments. We believe access to these ACHM patients has enabled us to efficiently enroll the most
appropriate patients into our CNGB3 and CNGA3 Phase 1/2 clinical trials.   In addition to giving us access to patients and 
potentially accelerated enrollment in our treatment studies, we believe the prospective natural 

10

Table of Contents

history data on each treated patient allow us to gather robust data from our Phase 1/2 clinical trials in a condensed 
timeframe.  We plan to initiate, together with Janssen, later stage clinical studies for AAV-CNGB3 and AAV-CNGA3 for 
the treatment of ACHM in 2022.  

Clinical Development of AAV-CNGB3 for the Treatment of ACHM Caused by Mutations in the CNGB3 Gene

We have developed a product candidate, AAV-CNGB3, to treat ACHM caused by mutations in the CNGB3 gene.  
Mutations in the CNGB3 gene prevent cone photoreceptors from functioning because CNGB3’s gene product is integral to 
the formation of a specific membrane channel that enables cones’ electrical response to light.  CNGB3 is a gene exclusively
expressed in cones and our aim is to replace the absent function of the mutant CNGB3 gene with a normal copy of the gene 
in cones of IRD patients and thereby restore cone function.  In order to drive expression of the functional CNGB3 gene
specifically in cones and not in other cells of the retina, we use the cone specific human cone arrestin, or CAR, promoter to
drive the expression of a codon optimized CNGB3 cDNA.  Codon optimization improves protein expression by increasing 
translation efficiency.  To transfect cone photoreceptors, we use the AAV8 capsid, which enables the efficient delivery of 
the CNGB3 gene cargo to those photoreceptors.  As the vast majority of the cones in the eye are located centrally and 
concentrated in the macula, we treat this central region of the retina through subretinal injection to deliver the viral vector 
product candidate to the photoreceptors in which its activity is required.

We have completed enrollment and dosing of the Phase 1/2 clinical trial of AAV-CNGB3 in both adult and

pediatric patients.  In this trial, AAV-CNGB3 was delivered via subretinal injection of up to 0.5mL targeting the central 
region of the retina, including the macula and fovea, where most of the cones are located.  One eye is treated in each 
patient.  The primary endpoint of this open-label, dose-escalation clinical trial is safety. Secondary endpoints include the 
outcomes of a range of functional and structural assessments.

Dosing was completed in this clinical trial in May 2019.  In the dose escalation portion of the trial, we treated 11 
adults. We also treated 12 children in the pediatric expansion cohorts. Six months following treatment, patients can move 
onto a long term follow up study in which they are followed for safety and indication of benefit for an additional four and a 
half years.

Our gene therapy product candidate AAV-CNGB3 was granted orphan drug designation by the FDA and the

European Commission for the treatment of achromatopsia caused by mutations in the CNGB3 gene, rare pediatric disease
designation by the FDA for the treatment of achromatopsia caused by mutations in the CNGB3 gene, and Fast Track
designation by the FDA for the treatment of achromatopsia caused by CNGB3 mutations.  We were granted PRIME 
designation by the EMA in October 2018 based on data from the first adult treatment cohort along with preclinical data.

Clinical Development of AAV-CNGA3 for the Treatment of ACHM Caused by Mutations in the CNGA3 Gene

We are also developing AAV-CNGA3 to treat ACHM caused by mutations in the CNGA3 gene.  We have 
designed a synthetic promoter to drive high levels of CNGA3 expression specifically in cones because we believe a larger
amount of CNGA3 protein is required to restore cone function as compared to CNGB3.  AAV-CNGA3 utilizes this 
proprietary pan cone promoter to drive a codon optimized CNGA3 gene sequence.  We believe this novel promoter can 
drive sufficient expression of CNGA3 in cones to restore light sensitivity to these cones in CNGA3 deficient patients.  We 
use the AAV8 capsid to transfect cone photoreceptors in the back of the eye and we target the cones concentrated in the 
central region of the retina via a subretinal injection that covers the macula.

We have completed enrollment and dosing of the open-label, dose-escalation Phase 1/2 clinical trial of AAV-

CNGA3 in patients with ACHM due to mutations in the CNGA3 gene.

11

Table of Contents

Our gene therapy product candidate AAV-CNGA3 was granted orphan drug designation by the FDA and EMA,

rare pediatric disease designation by the FDA, and in January 2021, was granted Fast Track designation by the FDA for the
treatment of ACHM caused by CNGA3 mutations.

AAV-AIPL1 for the Treatment of LCA4

LCA4 is an IRD that causes complete blindness before age five.  AIPL1 is a central protein for the maintenance of 

photoreceptor structure and function.  Deletion of the AIPL1 gene causes the most severe form of early retinal dystrophy, 
LCA4, in which the retinal structure is destroyed with complete vision loss.  LCA4 is rare, representing approximately 8% 
of all LCA cases.

There are currently no approved treatments for LCA4, and we believe an effective intervention will require

introducing a normal functional copy of the AIPL1 gene into rod and cone photoreceptors early in a patient’s life while 
some retinal structure remains in order to activate function and survival of the photoreceptors that are still present.  We 
believe gene therapy has the potential to be the only effective way to address the disease’s root cause.

LCA4’s extremely rapid progression, rarity and early age of onset make the standard process of seeking regulatory 

approval through clinical development challenging because adult safety trials would not yield meaningful data given the 
early onset of the disease.  We believe we are well placed to initiate the first clinical intervention in this indication through 
our relationships with the University College of London, or UCL, and Moorfields Eye Hospital, whose expertise and large 
IRD patient population enables such an aggressive and uncommon IRD to be treated.

To address LCA4, we developed a viral vector to replace the AIPL1 gene in all photoreceptors by using the AIPL1

cDNA driven by the rhodopsin kinase promoter, which is active in both rods and cones.

We have manufactured and released AAV-AIPL1 for compassionate use under an MHRA specials license in the 

UK to treat LCA4 patients.  A specials license allows physicians to prescribe a treatment of AAV-AIPL1 for LCA4 patients 
they deem appropriate.  We play no role in the physician’s treatment decision.  We intend to use any data produced by the 
compassionate use treatment to inform any potential clinical development plan as well as any interactions with the 
regulatory agencies that would enable us to make this intervention more widely available to the LCA4 patient population.

As the manufacturer of AAV-AIPL1 under a specials license, we have a record retention requirement and a

continuing obligation to inform the MHRA of any suspected adverse reaction to our medicinal product which is a serious
adverse reaction.

The UK’s Human Medicines Regulations 2012 allow for the manufacture and supply of medicinal products not 

authorized for marketing to patients with special needs at the request of the healthcare professional responsible for the 
patient’s care (these products are referred to as “specials”).  A special may only be supplied in: (i) response to an 
unsolicited order from a healthcare professional responsible for the care of the patient, (ii) if the product is manufactured 
and assembled in accordance with the specifications of that healthcare professional to fulfil the special needs of the 
individual patient that cannot be met by products already authorized for marketing and (iii) if the product is manufactured 
under a specials license granted by the MHRA.

Manufacturing a special also imposes a five year record retention requirement subject to review by the MHRA,

including details of any suspected adverse reaction to the product so sold or supplied of which the person is aware or
subsequently becomes aware, as well as a continuing obligation to notify the MHRA of any suspected adverse reaction to
the medicinal product which is a serious adverse reaction.

The FDA and European Commission granted orphan designation to AAV-AIPL1 for treatment of inherited retina

dystrophy due to defects in AIPL1 gene.

12

Table of Contents

Ophthalmology Preclinical Development Pipeline

We also have a preclinical IRD development pipeline focused on diseases caused by mutations in additional 
genes.  In order to expand our gene therapy pipeline for retinal diseases, we are also developing treatments for certain 
multifactorial eye diseases, which are diseases caused by multiple genetic or environmental factors.

AAV-RDH12 for the Treatment of RDH12 Mutation-Associated Retinal Dystrophy

Disease-causing sequence variants in RDH12 cause severe retinal dystrophy most often resulting in the clinical 

diagnosis of Leber congenital amaurosis (LCA) and early onset severe retinal dystrophy (EOSRD); although RDH12 
variants have also been associated with a clinical diagnosis of RP.  Sequence variants in RDH12 account for 3.4%–10.5% 
of LCA/EOSRD. Individuals with RDH12 deficiency exhibit widespread retinal degeneration impacting both rods and 
cones, with early macular involvement. Most people with RDH12–LCA/EOSRD experience marked central visual loss by 
their late teens to twenties.  AAV-RDH12 is an AAV based gene therapy designed to deliver a functional copy of the
 RDH12 gene to the retina of patients with genetically defined RDH12 deficiency.

We recently received orphan drug designation from the FDA as well as orphan medicinal product designation 

from the European Commission for AAV-RDH12 for the treatment of RDH12-associated retinal dystrophy.  

Wet and Dry Neovascular Age Related Macular Degeneration (AMD)

We are developing pre-clinical programs relating to neovascular age related macular degeneration, or wet AMD.  

We use a gene therapy product to deliver an antibody targeting the vascular endothelial growth factor receptor 2, or anti-
VEGFR2, with the aim of blocking disease related vascular formation in the eye.

Additionally, we are developing a novel approach to treat advanced dry AMD patients who have lost central 

vision through our innovative “rod-to-cone” technology.  By genetically engineering rods with molecules that will improve 
their speed of response to light, we aim to effectively transform a patch of rod photoreceptors in the outer part of the retina 
to behave more like cone photoreceptors, thus improving vision. There is no currently approved therapy that impacts 
disease progression of dry AMD.  The best available treatment for patients after they lose central vision and acuity is 
support and rehabilitation services to help them better utilize the remaining peripheral part of their retina.

Our Salivary Gland Programs

Our second area of clinical focus is xerostomia, a chronic and debilitating disorder of the salivary glands in which 
saliva production is impaired.  Xerostomia may be caused by a number of different insults to the salivary glands, including 
radiation therapy for head and neck cancer and certain autoimmune diseases.

AAV-hAQP1 for the Treatment of Radiation-Induced Grade 2/3 Xerostomia

Radiation induced xerostomia, or RIX, is a severe and debilitating long-term side effect of radiation treatment for

head and neck cancer. Chronic RIX results in severe side effects, including difficulty swallowing, or dysphagia, oral
discomfort, malnutrition, oral mucositis, changes in taste, increased oral infections and dental cavities, resulting in a
significant negative impact on patient quality of life. Current treatment options for RIX are few and are of limited benefit.
The sialogogues pilocarpine (approved for RIX) and cevimeline (used off-label) are minimally effective in patients with
grade 2/3 RIX where the gland structure and function have been significantly impaired. No new medications for RIX have
been approved in over 20 years.

Worldwide, there are approximately 650,000 new cases of head and neck cancer diagnosed each year, with 
approximately 54,000 cases in the U.S. alone, making it the fifth most common malignancy.  Approximately 85% of 
patients who receive radiation treatment for head and neck cancer experience reduced saliva production during 

13

Table of Contents

treatment, and approximately 50% of those patients who remain cancer free for two or more years after treatment continue 
to suffer from grade 2 or 3 RIX.  There are approximately 170,000 such patients in the U.S., with approximately 5,000 to 
10,000 new cases each year in the U.S.

Salivary glands are an attractive target organ for gene therapy treatments because they are self-contained, partially

immune protected and easily accessible, allowing for non-invasive delivery of small vector doses.

We are developing AAV-hAQP1 to treat RIX by increasing water conduction in the chronically damaged salivary 

glands by introducing a water conducting channel into the remaining epithelial cells of these damaged glands.  Adequate 
water secretion by surviving epithelial cells has the potential to deliver the protective exocrine proteins produced by 
remaining gland cells into the mouth.

The key to our approach is that, unlike the water conducting acinar cells, the water impermeable duct cells of the 

glands appear to be resilient to infrared radiation exposure.  As a consequence of this relative resilience to radiation 
treatment, salivary glands damaged by radiation treatment tend to contain mostly water impermeable ductal epithelial cells.  
To make these duct cells permeable to water, AAV-hAQP1 introduces the gene for the human aquaporin water channel, or
 hAQP1.  We have demonstrated that this has the potential to convey water permeability and causes ductal cells to generate 
an osmotic gradient, which causes them to secrete fluid into the lumen of the duct.

The proof of concept for this mechanism and its ability to increase the volume of saliva secreted by damaged 

salivary glands was observed in a Phase 1 clinical trial conducted by the NIH in patients with chronic grade 2 or 3 RIX.  
The trial was designed as a short-term dose escalation trial of a gene therapy using adenovirus as the vector to deliver the
 hAQP1 to the remaining epithelial cells in the parotid gland of 11 patients suffering from chronic RIX.  There were no 
reported severe adverse events among the patients treated, two out of three patients in each of the first three cohorts in this 
clinical trial were observed to have objective increases in saliva volume produced by the treated parotid gland, with 
increases in parotid flow ranging from 60% to 540%, and all but one of these patients showed a decrease in symptoms of 
dry mouth as measured by subjective visual analog scales, validated in other forms of xerostomia.  The results of this study 
were published in Proceedings of the National Academy of Sciences in 2012.

We are currently conducting a Phase 1 dose escalation clinical trial of AAV-hAQP1 at the NIH in patients with 

grade 2 or 3 RIX who remain cancer free for at least five years after receiving radiation treatment.  In this trial we are using 
AAV2 to deliver the hAQP1 gene, as we believe AAV2 efficiently transfects the salivary gland cells and does not spread 
beyond the target cells.  The aim of the trial is to determine the safety of inserting hAQP1 locally into the salivary glands of 
RIX patients, as well as to measure changes in salivary flow resulting from the introduction of this channel.  We have 
completed dosing in the first four cohorts and are enrolling patients into the fifth and final dose escalation cohort. This 
clinical trial is being conducted in conjunction with the National Institute of Dental and Craniofacial Research at the United 
States National Institutes of Health, or the NIH, Dental Clinic.

In the third quarter of 2019, we also initiated an open-label, multi-center Phase 1 dose escalation clinical trial of a 

single administration of our product candidate AAV-hAQP1 to one or both parotid glands in patients with grade 2 or 3 RIX.  
In December 2021, we announced preliminary data from this Phase 1 clinical trial.  The announcement included data from 
seven patients treated in cohorts 1, 2 and 3 of the unilateral dose escalation phase of the clinical trial. Six of the seven 
patients who reached 90 days following treatment reported their symptoms of dry mouth as better following treatment 
pursuant to a validated patient reported assessment of xerostomia symptoms, constituting clinically meaningful 
improvement.  One patient who reported the maximum response evaluable at 12-months had reached the 24-month time 
point and reported the same level of response.  In March 2022, we completed enrollment of the study.  A total of 24 
patients received either unilateral (n=12) or bilateral (n=12) treatment in one of eight escalating dose cohorts of three 
patients each. The investigational gene therapy AAV-hAQP1 has been well tolerated with no dose limiting toxicity and no 
treatment-related serious adverse events reported.  All subjects are to be followed for one year post-treatment in the present 
study and for an additional four years in the long-term follow-up study, per FDA guidelines.   

14

Table of Contents

Based on the safety and efficacy profile of AAV-hAQP1 in the Phase 1 clinical trial and regulatory precedent, we 

intend to initiate a randomized, double-blind, placebo-controlled Phase 2 study evaluating two active doses of AAV-hAQP1 
for the treatment of grade 2 or 3 RIX in the second half of 2022.  

The FDA granted orphan drug designation to AAV-hAQP1 for the treatment of symptoms of grade 2 and grade 3

late xerostomia from parotid gland hypofunction caused by radiotherapy for cancer of the oral cavity.

AAV-hAQP1 for the Treatment of Sjogren’s Syndrome

The destruction of salivary tissue resulting in chronic xerostomia may also be caused by chronic autoimmune 

disease.  Sjogren’s syndrome is an autoimmune disease in which a patient’s immune system may target the salivary glands.  
Chronic inflammation of the salivary glands results in long term damage and chronic xerostomia in many Sjogren’s 
patients.  Data from preclinical studies in animal models of Sjogren’s syndrome and data from explants of minor salivary 
glands of Sjogren’s patients suggest that Sjogren’s syndrome may also be treatable with our AAV-hAQP1 vector.  
Supported by data from our preclinical studies and our ongoing RIX clinical trials, we are currently conducting IND-
enabling studies of AAV-hAQP1 for xerostomia caused by Sjogren’s syndrome.

Our Neurodegenerative Disease Programs

Neurodegenerative diseases are our third area of focus. Relying on our expertise in viral vector design, delivery,

production and manufacturing, we are aiming to develop and optimize vectors to effectively treat both genetic and sporadic
forms of these diseases.

AAV-GAD for the Treatment of Parkinson’s Disease

Our first target indication is Parkinson’s disease, where we have Phase 2 clinical data from a successful

randomized, double-blind, sham-controlled trial.

Affecting nearly one million Americans and 10 million worldwide, Parkinson’s disease is the second-most 
common neurodegenerative disease after Alzheimer’s disease and is the 14th-leading cause of death in the United States.  It 
is associated with a progressive loss of motor control (e.g., shaking or tremor at rest and lack of facial expression), as well 
as non-motor symptoms (e.g., depression and anxiety).  There is no cure for Parkinson’s disease and 60,000 new cases are 
diagnosed each year in the United States alone.

Our product candidate targeting Parkinson’s disease, AAV-GAD, is designed to deliver the glutamic acid
decarboxylase, or GAD, gene to the subthalamic nucleus in order to increase production of GABA, the primary inhibitory 
neurotransmitter in the human brain.  GAD is the rate-limiting enzyme in the synthesis of GABA, therefore we believe that 
increasing subthalamic nucleus GAD expression through gene therapy has the potential to address the dysregulation of 
motor circuits and improve symptoms in Parkinson’s disease patients without affecting other brain regions, which can be 
responsible for complications of existing therapies.

Clinical Development of AAV-GAD

In a blinded Phase 2 clinical trial of AAV-GAD in patients with medically refractory Parkinson’s disease, 45 

patients were randomized 1:1 to receive either AAV-GAD gene therapy delivered by injection into the subthalamic nucleus 
on both sides of the brain or bilateral sham surgery.  Subjects were followed for one year and all results remained blinded 
until the final treated patient reached the 6-month primary endpoint.  The trial met the primary endpoint, of six-month 
change from baseline in double-blind assessment of off-medication motor scores of the Unified Parkinson’s Disease Rating 
Scale, or UPDRS.  At the six-month endpoint, UPDRS score for the AAV-GAD group decreased by 8.1 points (SD 1.7, 
23.1%; p<0.0001) and by 4.7 points in the sham group (1.5, 12.7%; p=0.003).  The AAV-GAD group showed a 
significantly greater improvement from baseline in UPDRS scores compared with the sham 

15

Table of Contents

group over the six-month course of the study (RMANOVA, p=0.04).  An improvement in complications of medical therapy 
as measured by the UPDRS part 4 was observed in the AAV-GAD group at both six and 12 months.  A significant decline 
in duration of disabling dyskinesia was observed only in the AAV-GAD treated patients.

AAV-GAD was reported to be well-tolerated, with no significant adverse events related to the therapy and no 

speech or cognitive complications observed.  The results of the trial were published in the March 2011 issue of The Lancet
Neurology, the August 2014 issue of the Journal of Clinical Investigation and the April 2017 issue of JCI Insight, building
upon publications of the Phase 1 trial data in The Lancet and the Proceedings of the National Academy of Sciences.  In 
addition, in research published in the November 28, 2018 issue of Science Translational Medicine, fifteen patients treated 
with AAV-GAD gene therapy were observed to have expressed a treatment-related reorganization of functional brain 
connectivity that was related to disease symptom improvement.  These flurodeoxyglucose positron emission tomography 
analyses provided objective biological evidence of improvements in abnormal brain networks associated with Parkinson’s 
disease following AAV-GAD gene therapy.

These results were observed in patients treated in both Phase 1 and Phase 2 studies.  Blinded analyses showed 

significant improvements in abnormal thalamic metabolism, a key node in the movement circuitry, in the AAV-GAD 
treated patients.  This pattern of brain network activity was not seen in untreated hemispheres or patients in the sham arm.  
Furthermore, a specific pattern of brain network activity was identified in those subjects with clinical improvements in the 
sham arm, which was different from the pattern observed in AAV-GAD responders.

We anticipate filing an Investigational New Drug application (IND) for AAV-GAD during the first half of 2022,

with material that has been manufactured with our in-house proprietary manufacturing process at our cGMP manufacturing
facility in London.

Neurodegenerative Disease Preclinical Development Pipeline

In addition to our clinical stage Parkinson’s disease program, we continue to conduct research to develop our

preclinical pipeline of gene therapy product candidates for the treatment of other serious diseases of the central nervous
system, including AAV-UPF1 to address motor neuron death in ALS, and an Alzheimer’s disease program focused on
endosomal trafficking dysfunction. Each of these programs are directed towards the underlying cell biology that may be
driving neurogeneration in these diseases.

ALS

ALS is a devastating, progressive, neurodegenerative disease leading to the loss of motor neurons, which are the 

neurons that control the ability to move, speak, swallow and ultimately to breathe.  The gradual paralysis in ALS invariably 
leads to death.  While 10% of ALS cases are caused by inherited genetic mutations, most ALS occurs sporadically, with no 
known genetic cause.  Mutations in over 20 genes have been identified that cause the inherited ALS cases.  
Characterization of these disease-causing genes have implicated several cellular pathways in the disease, with a prominent 
role emerging for genes involved in the cellular control of RNA.  Many new regulatory roles are being discovered for 
RNA, particularly in neurons.

We have designed a viral vector product candidate, AAV-UPF1, with the aim of increasing UPF1 expression in 
the motor neurons of ALS patients.  In preclinical studies, we observed that administration of AAV-UPF1 reduced motor 
neuron death thought to be driven by the toxic effects of several different genetic causes of ALS including, TDP-43, FUS 
and C9orf72.  Improvements in ALS-like symptoms related to limb strength and mobility in rodent models of ALS have 
also been observed following administration of AAV-UPF1.

We believe that gene therapy using AAV-UPF1 may increase UPF1 levels in cells affected by ALS, and we intend

to deliver our viral vector product candidate to the central nervous system via intrathecal injection, or injection into the
spinal canal.

16

Table of Contents

Alzheimer’s Disease

With the world population aging, Alzheimer’s disease has emerged as an extremely common and costly disease.  

While some treatments that have temporary effects on Alzheimer’s disease symptoms are available, there is currently no 
approved treatment that halts the progression of the disease.

Our Alzheimer’s disease program focuses on the endosomal trafficking pathway.  In preclinical studies, we 

observed that increasing levels of key retromer proteins may reverse endosomal trafficking defects.  We are identifying 
suitable retromer targets for gene augmentation in pre-symptomatic Alzheimer’s patients.

There are several reasons why gene therapy is, in principle, well suited for Alzheimer’s disease and other 
neurodegenerative diseases.  The first relates to the pathophysiology, time course, and anatomical spread of these disorders.  
Neurodegenerative diseases generally begin locally in selectively vulnerable regions with “cell sickness” years before 
rampant cell death and wide-spread anatomical distribution.  To be most effective, we believe interventions should be 
administrated early and will benefit from local delivery.  Even then, however, an intervention must maintain its efficacy for 
years because, unlike other cells in the body, neurons do not typically divide over the course of their life.  We believe AAV-
delivered gene therapy products may have a durable effect.  In the best case scenario, one delivery successfully taken up by 
targeted neurons would be sufficient for years of efficacy.

An important component of our approach is the development and validation of surrogate markers of endosomal 

dysfunction and predictive markers of Alzheimer’s disease.  In particular, several well studied biomarkers linked to 
Alzheimer’s disease, such as amyloid-beta and tau, have also been shown to be biomarkers of endosomal trafficking 
dysfunction in neurons.  Such biomarkers could potentially be used to identify patients with Alzheimer’s disease, as well as 
demonstrate potential product efficacy in the absence of Alzheimer’s disease symptoms.  By targeting endosomal 
trafficking dysregulation we aim to address the underlying cause of Alzheimer’s disease as well as other neurodegenerative 
diseases, such as certain forms of Parkinson’s disease.

Our Strengths

In addition to our three core therapeutic areas of focus, our six ongoing clinical development programs, and our 

broad pipeline of preclinical programs, we have core capabilities in viral vector design and optimization, gene therapy 
manufacturing and a potentially transformative gene regulation technology.  Utilizing the following key strengths, we aim 
to develop, commercialize and expand our portfolio of product candidates.

● Deep Expertise in Gene Therapy Development: We believe our expertise in viral vector design,

optimization and process development allows us to efficiently advance gene therapy products candidates
from preclinical development to cGMP manufacturing and clinical development through commercialization.

● Potentially Transformative Gene Regulation Technology Platform: We are developing proprietary 

technology to enable innovative gene therapy treatments whose expression can be turned on and off with an 
easily administered small molecule.  We believe the capacity for temporal control of gene therapy products 
has the potential to transform the gene therapy landscape by opening up new treatment possibilities.

● Manufacturing Capabilities and Capacity: We have a flexible and scalable cGMP manufacturing facility
and production process in London, which we expect can supply our current clinical and preclinical programs
through regulatory approval and, should they be approved, provide sufficient capacity for their commercial
production. We have also expanded our manufacturing capabilities by acquiring the buildings for our second
cGMP viral vector manufacturing facility and our first cGMP plasmid and DNA production

17

Table of Contents

facility in Shannon, Ireland. The plasmid and DNA production facility is complete and we expect the viral
vector manufacturing facility to be completed during 2022.

● Robust and Diverse Clinical and Preclinical Pipeline: Applying our portfolio approach to gene therapy
product development, our initial focus is on treatments for ocular disorders, including IRDs and large
degenerative ocular diseases, as well as salivary gland disorders and neurodegenerative diseases. We have six
programs in clinical development, one program under a compassionate use specials license and a broad
preclinical development pipeline.

● Relationships with Leading Institutions: Our longstanding relationships with leading institutions and

experts provides us with guidance on development strategy and access to potential patients for our clinical
trials.

● Natural History Study Data: We sponsor ongoing prospective long-term natural history studies in IRDs

that facilitate our ability to efficiently enroll our treatment studies, potentially reducing clinical trial timelines
and providing insight into the appropriate endpoints for regulatory approval.

Our Strategy

Our goal is to develop and commercialize innovative gene therapy products to treat serious disorders and broaden 

the scope of indications that may be treatable by our gene therapies.  Our strategy to achieve this goal is to:

● successfully complete clinical development, obtain regulatory approval and commercialize our pipeline of

gene therapy product candidates;

● continue to advance the development of our preclinical pipeline product candidates;

● utilize our viral vector design and optimization capabilities to identify and develop new gene therapies for

serious diseases;

● advance the development of our potentially transformative proprietary technology for regulating the activity

of gene therapy products using small molecules and initiate clinical trials of new regulatable product
candidates; and

● continue to pursue and evaluate further strategic collaborations with additional biotechnology and

pharmaceutical companies to leverage our capabilities, manufacturing capacity and proprietary gene
regulation technology.

Gene Therapy Overview

Gene therapy uses a delivery vehicle, referred to as a vector, to insert a functionally active gene into cells in the 

body.  The gene encodes a therapeutic protein that may block disease pathways or may enhance a deficient pathway.  Gene 
therapy has been studied for over 50 years, with a variety of different viral vectors employed to deliver therapeutic genes.  
Since the first clinical study of therapeutic gene transfer in humans in 1990, thousands of gene therapy studies covering a 
broad range of disease targets have been initiated.  In recent years, the first gene therapies have received regulatory 
approval, including approval by the FDA of Luxturna, marketed by Spark Therapeutics, Inc. which was purchased by 
Roche, for treatment of RPE65-associated retinal dystrophy, and Zolgensma, marketed by AveXis, Inc., a Novartis
company, for the treatment of spinal muscular atrophy, resulting in a growing acceptance of gene therapy technology as a
potentially safe and effective therapeutic approach.

18

Table of Contents

Our current programs use adeno-associated virus, or AAV, as the vector for delivering gene sequences into a 

patient’s cells.  The key components of an AAV vector include: (i) the capsid, or the outer viral protein shell that encloses 
the target DNA, which is responsible for binding to the cell surface and allowing the therapeutic gene that it is carrying to 
enter the cell; (ii) the therapeutic gene, or transgene, that encodes the therapeutic protein; and (iii) the promoter, or the 
DNA sequence that drives the expression of the transgene.  AAV is a good vector for gene therapy delivery because of its 
relative safety and broad applicability.  AAV is less immunogenic, or less prone to causing an immune reaction, than 
previous generations of gene therapy vectors, such as adenoviral vectors and AAV does not readily integrate into the 
genome of the target cell, reducing the potential for oncogenesis, or the induction of cancer.  AAV vectors can transfer a 
therapeutic gene into, or transduce, numerous cell types.  Slight differences in capsid proteins can modulate the efficiency 
with which different capsids deliver genes to different cells, thus allowing different AAV capsids to be selected to most 
effectively target particular cell types.

The therapeutic gene sequence that enters the targeted cell includes both the protein coding region and an 

engineered promoter sequence that is used to drive functional gene expression.  These engineered promoters may be 
designed to drive different levels of gene expression or to limit gene expression to specific cell types.  Additional aspects of 
the transgene sequence may be engineered for optimal gene expression, such as codon usage and synthetic introns, which 
may enhance levels of therapeutic protein expression.

Gene therapy can be used to address monogenic diseases, which result in mutations in a single gene in a patient’s 

genome.  In such cases, the viral vector is used to deliver a normal copy of the gene to the cells that are defective due to the 
lack of the gene function.  The normal gene then drives production of the missing protein and offers a therapeutic benefit in 
patients with the disease.  This gene replacement approach underlies all of our IRD programs.

In addition to replacing a gene that is defective or missing in a monogenic disease, gene therapy can also provide a 
therapeutic impact by adding a particular new gene function to cells and thereby change cell behavior and function in other 
types of diseases.  This is the aim of our salivary gland programs, where our treatment is designed to promote water to flow 
through otherwise impermeable cells in damaged salivary glands and increase saliva flow into the mouth.  Additionally, 
gene therapy may be used to deliver a therapeutic protein that may block a disease pathway or enhance a deficient cellular 
pathway in multifactorial diseases such as wet AMD and neurodegenerative diseases, including ALS and Alzheimer’s 
disease.

Importantly, AAV vectors enable targeting of therapeutic genes to non-dividing cells, in which they are thought to 

remain for the rest of the cell’s life.  This means that a single treatment may offer patients a durable effect and long-term 
benefit.  The specific cells of the eye, salivary gland and the neurons that we target in our current gene therapy programs 
are largely non-dividing cells and preclinical evidence has shown that they can be effectively targeted by the specific AAV 
capsids that we use, enabling us to potentially achieve a durable impact on each of the diseases that we treat.

Our Competitive Advantage in IRDs: Vector Engineering, Natural History Studies and Relationships with Leading
Institutions

IRDs as a class are the most common cause of blindness in the working age population worldwide and a leading 
cause of impaired vision in children in developed countries.  There are approximately 200,000 people in each of the U.S., 
EU and UK affected by IRDs.  However, IRDs may be caused by mutations in over 300 identified genes, and in many 
cases each genetically defined IRD may be a small patient population.  Meaningful clinical trials for these sorts of rare 
indications are especially challenging because they require access to sufficient patients and baseline data on each patient in 
order to secure clear indicators of efficacy as a result of intervention.  We seek to address this problem by sponsoring 
prospectively designed natural history studies in each of the indications that we are treating in our Phase 1/2 trials.

19

Table of Contents

For each of the natural history studies, baseline assessments are made upon enrollment, with follow up 
assessments at later time points.  A broad range of assessments are used, including functional tests, retinal imaging and 
electrophysiological assessments.  The same assessments used for each natural history study are used in our corresponding 
clinical trial targeting the same indication, allowing us to compare the impact of our product candidates on the progression 
of these diseases on a population, as well as individual patient basis.

We expect the natural history studies will enhance our understanding of disease progression for each indication 
that we are targeting and allow us to identify optimal windows for intervention, provide specific functional and structural 
parameters to quantify treatment effects and define clinical endpoints.  These studies also provide us with a source of 
potential patients for our treatment studies and have facilitated efficient enrollment of these studies.  These patients are not 
only genotyped, but also have up to five years of detailed functional and structural assessment data prior to enrollment into 
an appropriate treatment study.

We also have longstanding active relationships and clinical site agreements with leading institutions in retinal

disorder treatments, including, among others, Moorfields Eye Hospital in London, the University of Michigan Kellogg Eye
Center, Massachusetts Eye and Ear, the Medical College of Wisconsin & Froedtert Hospital and the Casey Eye Institute at
the Oregon Health & Science University.  These institutions and others where we have active relationships are among the 
premier treatment centers for the indications that we are pursuing and provide us with access to potential patients for our 
clinical trials and experts in IRDs who offer strategic guidance and expertise for our development strategy.  They provide 
services with respect to our preclinical and clinical studies.  Participants enrolled at the University of Michigan Kellogg 
Eye Center and Massachusetts Eye and Ear Hospital may travel to the Medical College of Wisconsin & Froedtert Hospital 
for adaptive optic assessments.  The Casey Eye Institute at the Oregon Health & Science University provides certain 
reading center and other clinical services with respect to our clinical trials.

Our Gene Regulation Platform

We are developing a potentially transformative technology designed to precisely and specifically control gene 

therapy expression levels via dose-response to orally delivered small molecules.  The aim of this gene regulation platform 
is to transform gene therapy into a generalizable mechanism for the delivery of biologic drugs.  The idea is that the gene 
encoding a particular biologic drug or a therapeutic antibody would be delivered to target cells in the body, but these genes 
would only be activated in the presence of a specific, proprietary small molecule.  The therapeutic protein would be 
manufactured by the body only in the presence of the small molecule so that intermittent production of the therapeutic 
protein would be achieved by dosing with the small molecule drug.

This temporal regulation of gene therapy products by exogenous small molecules has long been a goal of gene 
therapy researchers.  The ability to regulate transgenes by introducing temporal control has the potential to transform the 
gene therapy landscape and the biologics industry as a whole.  Our approach focuses on riboswitches to regulate gene 
expression rather than on the modulation of transcription factor activity.

Riboswitches are pieces of RNA that fold into alternative shapes depending on the binding of a specific small 

molecule to that RNA sequence.  One RNA shape allows the gene containing the riboswitch to be active, while the 
alternative shape inactivates the gene.  Riboswitches are used extensively by bacteria, but none have been identified in 
mammalian cells to date.

We designed de-novo mammalian riboswitches that we have observed respond to small molecules to switch genes
on and off in mammalian cells and in vivo in mice.  Our riboswitch contains a stretch of RNA sequence, called an aptamer, 
that binds to a specific small molecule.  The riboswitch is inserted into the therapeutic transgene cDNA.  In the absence of 
the specific small molecule, the unbound riboswitch folds into the shape that drives the destruction of the RNA message 
and no therapeutic protein is produced in the absence of the small molecule.  However, when the small molecule is present 
and binds to the riboswitch it adopts the alternative RNA shape, causing stable messages to be formed and the therapeutic 
protein to be produced.

20

Table of Contents

One of the features of our mammalian riboswitch is its unprecedented dynamic range of greater than 5,000-fold.  

We believe this technology is viable for a therapeutic product and is also the first instance of a proprietary system for 
screening randomized aptamers and small molecules within mammalian cells for functional interactions.

Using our proprietary technology, we have demonstrated the ability to regulate multiple genes in vitro and in vivo

in multiple tissue types using multiple small molecules.

Our Manufacturing Capabilities

We own and operate a cGMP manufacturing facility situated in London, United Kingdom.  Supporting our global 

approach to clinical development and market supply, we designed the 29,000 square foot facility to meet multiple 
regulatory standards, including the MHRA, EMA and FDA standards.

We believe our facility can supply our current clinical and preclinical programs through regulatory approval and, 
should they be approved, provide sufficient capacity, for commercial production.  Strategically, we believe our facility will 
minimize our dependence on third-party CMOs, which we believe provides a significant strategic, clinical and commercial 
advantage.

Our London facility is flexible and scalable, with eleven independent air handling units, two cell culture suites and 

three separate viral vector production suites, which allows us to produce multiple product candidates in parallel, as well as 
sequentially at different scales.  This allows us to accommodate up to three independent parallel manufacturing streams of 
viral vector products that are isolated within dedicated production areas.

Our London manufacturing facility includes an integrated analytical department and in-house analytical tool kit 

that allows for in-house release of clinical and commercial manufactured products.  It is also equipped with dedicated areas 
for microbiology, molecular biology, and cell-based analytics.  Our analytical department can perform product related 
assays, allowing us to retain and gain expertise that is normally lost to third parties.  The close integration allows for rapid 
turnaround and flexibility in scheduling of key assays, reducing lead times for product candidate releases.  Further, our 
dedicated product fill and finish suite allows us to manufacture a full range of clinical and commercial products under one 
roof and in our control.

We have more than 185 highly trained multidisciplinary staff on our manufacturing team with backgrounds in a
diverse array of manufacturing sciences, technologies, analytics and production working together to expedite delivery of
gene therapy products.

We have identified and licensed a proprietary HEK-293 cell line that is well characterized and that we have 

banked in hundreds of vials.  The specific cell line, size of the bank, culture media, and cryopreservation agents have been 
selected to facilitate bridging between process development platforms and targets.  Our HEK-293 cells are suitable for both 
the adherent culture platform and the bioreactor process.  We believe the ability to use the same cell line throughout the 
product and process development lifecycle will allow us to use a bracketed approach to process validation and 
comparability, which we believe may reduce the time and costs related to their implementation.

We have expanded our manufacturing capabilities by acquiring the buildings for our second cGMP viral vector 
manufacturing facility and our first cGMP plasmid and DNA production facility in Shannon, Ireland. We completed the 
acquisitions in January 2021.  The campus encompasses 150,000 square feet and will include a high capacity cGMP 
manufacturing hub for clinical through commercial supply, clinical supply storage, quality control laboratories for global 
release, up to twelve viral vector production suites, fully scalable automated fill and finish facilities, an extensive 
warehouse and a separate cGMP plasmid and DNA manufacturing facility. 

We currently rely on third-party manufacturers for the plasmid used in the production of our product candidates.

We believe that building a second viral vector manufacturing facility and bringing cGMP plasmid and DNA

21

Table of Contents

production in-house will provide greater flexibility and efficiency as we advance our product candidates through 
development, and should they be approved, commercial production.  The plasmid and DNA production facility has been 
completed and we expect the viral vector facility to be completed in 2022.

Our significant investment in the development of our internal manufacturing capacity and expertise to allow for
better control over our process development timelines, costs, product quality and intellectual property provides us with a
key competitive advantage.

Competition

The biotechnology and pharmaceutical industries are characterized by rapidly changing technologies, significant 

competition and a strong emphasis on intellectual property.  This is true in the field of gene therapy generally, and in the 
treatments for our key disease areas.  While we believe that the strength of our team, gene therapy expertise, scientific 
knowledge and intellectual property provide us with competitive advantages, we face competition from several sources, 
including large and small biopharmaceutical companies, academic research institutions, government agencies and public 
and private research institutions.  Not only must we compete with other companies that are focused on gene therapy, but 
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 have significantly greater financial resources and expertise in research and development, 

manufacturing, preclinical testing, clinical trials, regulatory approvals and product marketing than we do.  These 
competitors also compete with us in recruiting and retaining qualified scientific and management personnel, establishing 
clinical trial sites and patient registration for clinical trials and acquiring technologies complementary to, or necessary for, 
clinical programs.  Mergers and acquisitions in the pharmaceutical and biotechnology industries may result in even more 
resources being concentrated among a smaller number of our competitors.  Smaller or early stage companies may also 
prove to be significant competitors, particularly through collaborative arrangements with large and established companies.

There are other organizations working to improve existing therapies or to develop new therapies for our initially 

selected disease indications.  Depending on how successful these efforts are, it is possible they may increase the barriers to 
adoption and success for our product candidates, if approved.  These efforts include two product candidates Applied 
Genetic Technologies Corporation, or AGTC, have in Phase 1/2 clinical trials to treat ACHM related to CNGB3 and
CNGA3, respectively, a product candidate in Phase 1/2 clinical trials by each of Biogen Inc. and 4D Molecular
Therapeutics, Inc. and a program AGTC is running to treat XLRP, as well as Luxturna, marketed by Spark Therapeutics,
Inc. which was purchased by Roche, and has been approved to treat RPE65-associated retinal dystrophy.  We are not aware 
of any other gene therapy product candidates in clinical development targeting xerostomia.  We are aware of other ALS 
gene therapies utilizing different treatment mechanisms to treat different genetically defined subsets of ALS patients, as 
well as gene therapy product candidates being developed for the treatment of Parkinson’s disease, including those being 
developed by Voyager Therapeutics, Inc., Prevail Therapeutics, Inc. and Axovant Sciences Ltd.

We anticipate that we will face intense and increasing competition as new drugs enter the market and advanced 

technologies become available.  We expect any treatments that we develop and commercialize to compete on the basis of, 
among other things, efficacy, safety, convenience of administration and delivery, price, the level of generic competition and 
the availability of reimbursement from government and other third-party payors.

Intellectual Property

Our success depends in large part upon our ability to secure and maintain proprietary protection for our 
technologies and products and to operate without infringing the proprietary rights of others.  Our policy is to protect our 
proprietary position by, among other methods, filing or collaborating with our licensors to file U.S. and foreign patent 
applications related to our proprietary technology, inventions and improvements that are important to the development 

22

Table of Contents

and implementation of our business.  We also use other forms of protection, such as confidential information and trademark 
protection, particularly where we do not believe patent protection is appropriate or obtainable.  Our patent portfolio 
consists of a combination of issued patents and pending patent applications that are owned or licensed from third parties.

As of December 31, 2021, we own, co-own, have an exclusive license, or an exclusive option to license 261 

United States and foreign issued or allowed patents and 342 patent applications, pending in the United States and 
internationally.  For any individual patent, the term depends on the applicable law in the country in which the patent is 
granted.  In most countries where we have filed patent applications or in-licensed patents and patent applications, patents 
have a term of 20 years from the application filing date or earliest claimed non-provisional priority date.  In the United 
States, the patent term is 20 years but may be shortened if a patent is terminally disclaimed over another patent that expires 
earlier.  The term of a U.S. patent may also be lengthened by a patent term adjustment, in order to address administrative 
delays by the United States Patent and Trademark Office in granting a patent.  In the United States, the term of a patent that 
covers an FDA-approved drug or biologic may be eligible for patent term extension in order to restore the period of a 
patent term lost during the premarket FDA regulatory review process.  The Drug Price Competition and Patent Term 
Restoration Act of 1984, or the Hatch-Waxman Act, permits a patent term extension of up to five years beyond the natural 
expiration of the patent.  The patent term restoration period is generally equal to the regulatory review period for the 
approved product which period occurs after the date the patent is issued, subject to certain exceptions.  Only one patent 
may be extended for a regulatory review period for any product, and the application for the extension must be submitted 
prior to the expiration of the patent.  In the future, we may decide to apply for restoration of patent term for one of our 
currently owned or licensed patents to extend its current expiration date, depending on the expected length of the clinical 
trials and other factors involved in the filing of the relevant Biologics License Application.

Company-Owned Intellectual Property

We own seven patent families relating to gene regulation platform technologies developed by us.  The first patent 
family includes 43 issued patents in the United States, Albania, Austria, Belgium, Bulgaria, China, Croatia, Cyprus, Czech, 
Denmark, Estonia, Eurasian Patent Organization, Finland, France, Germany, Greece, Hong Kong, Hungary, Iceland, 
Ireland, Israel, Italy, Japan, Latvia, Lithuania, Luxembourg, Malta, Monaco, Netherlands, North Macedonia, Norway, 
Poland, Portugal, Romania, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland/Liechtenstein, Turkey and 
the United Kingdom and 23 pending patent applications with claims directed to compositions of matter and methods of use 
in the United States, Europe, African Regional Intellectual Property Organization, Australia, Brazil, Canada, China, Egypt, 
Eurasian Patent Organization, India, Indonesia, Israel, Japan, Republic of Korea, Malaysia, Mexico, New Zealand (two 
applications), Philippines (two applications), Singapore, South Africa and Vietnam.  Patents issued from this family are 
expected to expire February 2, 2036, not including any patent term adjustments that may extend the patent term in certain 
jurisdictions.

The second patent family includes 23 pending patent applications with claims directed to compositions of matter 

and methods of use in the United States, Europe, African Regional Intellectual Property Organization, Australia, Brazil, 
Canada, China, Egypt, Eurasian Patent Organization, Hong Kong, India, Indonesia (two applications), Israel, Japan, 
Republic of Korea, Malaysia, Mexico, New Zealand, Philippines, Singapore, South Africa and Vietnam.  Patents issued 
from this family are expected to expire February 2, 2037, not including any patent term adjustments that may extend the 
patent term in certain jurisdictions.

The third patent family includes 22 pending patent applications with claims directed to compositions of matter and 

methods of use in the United States, Europe, African Regional Intellectual Property Organization, Australia, Brazil, 
Canada, China, Egypt, Eurasian Patent Organization, Hong Kong, India, Indonesia, Israel, Japan, Republic of Korea, 
Malaysia, Mexico, New Zealand, Philippines, Singapore, South Africa and Vietnam.  Patents issued from this family are 
expected to expire February 2, 2037, not including any patent term adjustments that may extend the patent term in certain 
jurisdictions.

23

Table of Contents

The fourth patent family includes 22 pending patent applications with claims directed to compositions of matter

and methods of use in the United States, Europe, African Regional Industrial Property Organization, Australia, Brazil,
Canada, China, Egypt, Eurasian Patent Organization, Hong Kong, India, Indonesia, Israel, Japan, Republic of Korea,
Malaysia, Mexico, New Zealand, Philippines, Singapore, South Africa and Vietnam. Patents issued from this family are
expected to expire August 3, 2037, not including any patent term adjustments that may extend the patent term in certain
jurisdictions.

The fifth patent family includes 22 pending patent applications with claims directed to compositions of matter and
methods of use in the United States, Europe, African Regional Industrial Property Organization, Australia, Brazil, Canada,
China, Eurasian Patent Organization, Egypt, Hong Kong, Indonesia, Israel, India, Japan, Republic of Korea, Mexico,
Malaysia, New Zealand, Philippines, Singapore, South Africa and Vietnam. Patents issued from this family are expected to
expire on March 2, 2038, not including any patent term adjustments that may extend the patent term in certain jurisdictions.

The sixth patent family includes 22 pending patent applications with claims directed to compositions of matter

and methods of use in the United States, Europe, African Regional Industrial Property Organization, Australia, Brazil,
Canada, China, Eurasian Patent Organization, Egypt, Hong Kong, India, Indonesia, Israel, Japan, Republic of Korea,
Mexico, Malaysia, New Zealand, Philippines, Singapore, South Africa and Vietnam. Patents issued from this family are
expected to expire on February 21, 2038, not including any patent term adjustments that may extend the patent term in
certain jurisdictions.

The seventh patent family includes one pending Patent Cooperation Treaty patent application with claims directed

to compositions of matter and methods of use. Patents issued from this family are expected to expire on March 24, 2041,
not including any patent term adjustments that may extend the patent term in certain jurisdictions.

Licensed Intellectual Property

Certain of our issued patents and pending patent applications are exclusively licensed to us from UCL Business,

Plc (“UCLB”), Brandeis University (“Brandeis”) and the National Institute of Dental and Craniofacial Research
(“NIDCR”).

UCLB

The UCLB portfolio includes three licensed patent families relating to our RPE65, CNGA3, and RPGR gene
therapy programs and one optioned patent family relating to our dry AMD gene therapy program with a combined 80
United States and foreign issued patents and 68 pending patent applications.

The first patent family, with claims directed to compositions of matter and methods of use relating to our RPE65 

program, and the AAV-RPE65 product candidate includes 43 issued patents in the United States, Albania, Austria, 
Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hong Kong, Hungary, 
Iceland, India, Ireland, Italy, Japan, Latvia, Lithuania, Luxembourg, Malta, Mexico, Monaco, Netherlands, North 
Macedonia, Norway, Poland, Portugal, Romania, San Moreno, Serbia, Singapore, Slovakia, Slovenia, Spain, Sweden, 
Switzerland/Liechtenstein, Turkey and the United Kingdom and 17 pending patent applications in the United States, 
Europe, Australia, Brazil, Canada, China, Egypt, Hong Kong, Israel (two applications), Malaysia, Mexico, New Zealand 
(two applications), Nigeria, Philippines and Thailand.  Patents issued from this family are expected to expire February 8, 
2036, not including any patent term extensions or adjustments that may extend the patent term in certain jurisdictions.

The second patent family includes 22 pending patent applications with claims directed to compositions of matter
and methods of use relating to our achromatopsia program and the AAV-CNGA3 product candidate in the United States,
Europe, African Regional Intellectual Property Organization, Australia, Brazil, Canada, China, Egypt, Eurasian

24

Table of Contents

Patent Convention, Hong Kong, India, Indonesia, Israel, Japan, Republic of Korea, Malaysia, Mexico, New Zealand, 
Philippines, Singapore, South Africa and Vietnam.  Patents issued from this family are expected to expire January 14, 
2039, not including any patent term extensions or adjustments that may extend the patent term in certain jurisdictions.

The third patent family, with claims directed to compositions of matter and methods of use relating to our retinitis 
pigmentosa program and the botaretigene sparoparvovec product candidate, includes 41 issued patents in the United States 
(two patents), Albania, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, 
Germany, Greece, Hungary, Iceland, Ireland, Italy, Japan (two patents), Latvia, Lithuania, Luxembourg, Malta, Monaco, 
Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, San Moreno, Serbia, Slovakia, Slovenia, Spain, 
Sweden, Switzerland/Liechtenstein, Turkey and the United Kingdom and five pending applications in Europe, Canada, 
China, Hong Kong and Japan.  Patents issued from this family are expected to expire July 17, 2035, not including any 
patent term extensions or adjustments that may extend the patent term in certain jurisdictions.

The fourth patent family which we have optioned, with claims directed to compositions of matter and methods of 
use relating to our dry AMD gene therapy program, includes five issued patents in Japan, Singapore, Malaysia, Republic of 
Korea and South Africa and 21 pending applications in the United States, Europe, African Regional Intellectual Property 
Organization, Australia, Brazil, Canada, China, Egypt, Eurasian Patent Organization, Hong Kong (two applications), India, 
Indonesia, Israel, Mexico, New Zealand, Nigeria, Philippines, Singapore, Thailand and Vietnam.  Patents issued from this 
family are expected to expire February 19, 2036, not including any patent term extensions or adjustments that may extend 
the patent term in certain jurisdictions.

Brandeis

The licensed Brandeis portfolio includes one patent family with claims directed to compositions of matter and

methods of use relating to our ALS gene therapy program and the AAV-UPF1 product candidate.

This patent family includes 16 issued patents in the United States, Austria, Australia, Belgium, Denmark, France, 

Germany, Hong Kong, Ireland, Italy, Netherlands, Norway, Spain, Sweden, Switzerland/Liechtenstein and the United 
Kingdom  and four pending patent applications in the United States, Europe, Canada and Hong Kong.  Patents issued from 
this family are expected to expire October 8, 2033, not including any patent term extensions or adjustments that may 
extend the patent term in certain jurisdictions.

National Institute of Dental and Craniofacial Research

The exclusively licensed NIDCR portfolio includes one patent family with claims directed to compositions of 

matter and methods of use relating to our Sjogren’s Syndrome gene therapy program.  This patent family includes 16 
issued patents in the United States, Canada, Australia, Austria, Belgium, Denmark, France, Germany, Ireland, Italy, 
Netherlands, Norway, Spain, Sweden, Switzerland and the United Kingdom.  Patents issued from this family are expected 
to expire August 30, 2033, not including any patent term extensions or adjustments that may extend the patent term in 
certain jurisdictions.

License Agreements

License Agreements with UCLB

We previously entered into several license agreements with UCLB, covering the following inherited retinal 
disease programs: (a) ACHM caused by mutations in CNGB3; (b) ACHM caused by mutations in CNGA3; (c) XLRP; and 
(d) RPE65-mediated IRD (together, the “Licensed Gene Therapy Programs”).  The terms of these license agreements were 
set forth in (i) the license agreement, dated February 4, 2015, as amended, between Athena Vision Ltd. 

25

Table of Contents

and UCLB (the “First UCLB License Agreement”); (ii) the license agreements, dated July 29, 2017, as amended, between 
MeiraGTx UK II Limited and UCL Business, Plc (the “Second UCLB License Agreement”); and (iii) the license 
agreement, dated March 15, 2018, among MeiraGTx Limited, MeiraGTx UK II Limited and UCL Business Plc (the “Third 
UCLB License Agreement” and, collectively, the “prior UCLB license agreements”).  In January and February 2019, we 
amended and restated the prior UCLB license agreements to establish a new standalone license agreement (each, a “Stand-
Alone UCLB Agreement”) for each of the Licensed Gene Therapy Programs.  We have removed from each of the Stand-
Alone Agreements our obligation to pay UCLB a share of certain sublicensing revenues as was provided under the First 
UCLB License Agreement and have aligned the material terms of the Stand-Alone Agreements to track those under the 
Third UCLB License Agreement as previously disclosed and a summary of which is set forth below as is now reflected in 
each of the Stand-Alone Agreements.

Under the terms of the Third UCLB License Agreement, we paid an initial upfront payment of £6,994, and issued 

to UCLB £100,000 of our ordinary shares.  

Under each of the Stand-Alone UCLB Agreements, UCLB granted us an exclusive, worldwide, and sublicensable

license under certain intellectual property rights controlled by UCLB relating to one of the Licensed Gene Therapy
Programs to develop and commercialize licensed products in a relevant field of gene therapy. We must use diligent efforts
to develop and commercialize the licensed products.

Under the terms of each Stand-Alone UCLB Agreement, we are required to pay UCLB sales milestone payments

of up to a total of £39.8 million in the aggregate and an annual management fee of £50 thousand until certain royalty
payments have been paid. Additionally, pursuant to the Stand-Alone UCLB Agreement related to CNGB3, we paid UCLB
an upfront payment of £1.5 million and issued £1.5 million of the Company’s ordinary shares.

Commencing on the first commercial sale of licensed products under each Stand-Alone UCLB Agreement, we
must make low single-digit percentage royalty payments to UCLB on net sales of such products. Our royalty obligations
under each agreement continue on a licensed product-by-licensed product and country-by-country basis until the latest to
occur of the expiration of the last valid claim of a patent claiming such licensed product in such country, the expiration of
any regulatory exclusivity for all licensed products in such country, or the tenth anniversary of first commercial sale of
such licensed product in such country.

Each Stand-Alone UCLB Agreement will remain in effect on a country-by-country basis until the expiration of

the last payment obligation in such country. Each Stand-Alone UCLB Agreement may be terminated: (a) by either party in
the event of the other party’s material breach that remains uncured for 30 days (or for 14 days in the case of breaches
related to payment obligations), (b) by either party for the other party’s insolvency, (c) immediately by UCLB if we are in
persistent breach of the agreement and the parties fail to agree upon a mechanism to remedy such persistent breach (or we
do not comply with such agreed upon mechanism), or (d) immediately by UCLB if we undergo certain change of control
events or if we enter into a sublicense with certain prohibited persons, which may adversely affect UCL’s and/or UCLB’s
reputation. Each Stand-Alone UCLB Agreement may also be terminated or converted to a non-exclusive license by UCLB
upon three months’ notice if we, based on an independent expert determination, fail to use diligent efforts to develop and
commercially exploit licensed products and do not cure such failure within a certain cure period.

License Agreement between BRI-Alzan Inc. and Brandeis

In May 2013, BRI-Alzan Inc., or BRI-Alzan, entered into a license agreement with Brandeis, or the Brandeis 

Agreement.  On December 31, 2015, we entered into an Agreement and Plan of Merger, or the BRI-Alzan Merger 
Agreement, with BRI-Alzan, and the Brandeis Agreement was assigned to us as a result of such merger.  Pursuant to the 
terms of the BRI-Alzan Merger Agreement, we agreed to make cash payments to the sellers of BRI-Alzan upon the 
achievement of certain milestones, subject to an aggregate cap of $4,500,000.  In addition, we agreed to make low single-
digit percentage royalty payments to the sellers of BRI-Alzan on net sales of any product for the therapeutic or 
prophylactic treatment of ALS that is covered by a valid claim of the patent rights licensed under the Brandeis 

26

Table of Contents

Agreement.  The BRI-Alzan Merger Agreement includes customary confidentiality, indemnification, non-competition and 
non-solicitation provisions.

Pursuant to the Brandeis Agreement, Brandeis granted us an exclusive, worldwide license under certain patent

rights with claims directed to compositions of matter and methods of use relating to our ALS gene therapy program and the
AAV-UPF1 product candidate to develop and commercialize licensed products.

We must use commercially reasonable efforts to develop and commercialize licensed products.  We also acquired 

non-exclusive, worldwide licenses to certain know-how controlled by Brandeis to exploit licensed products.  We are 
required to pay Brandeis developmental and regulatory milestone payments of up to a total of $1.0 million in the aggregate.  
We are also required to pay Brandeis annual license maintenance fees ranging from $15,000 to $100,000 depending on the 
development stage of the licensed product.  Commencing on the first commercial sale of licensed products, we must make 
low single-digit percentage royalty payments to Brandeis on net sales of such products.  In addition, we must pay Brandeis 
mid-teen percentages of sublicensing revenues.

The Brandeis Agreement will remain in effect on a country-by-country basis until the earlier of: (a) 1 year after

the date that we, our affiliates or sublicensees last sell any licensed product in such country or (b) until the expiration of the 
last–to-expire of the licensed patent rights in such country.  The Brandeis Agreement may be terminated by Brandeis for 
our insolvency or for our material breach that remains uncured for 60 days (or for 30 days in the case of breaches related to 
payment obligations).  Such material breach may be cured only once in any 12-month period. Brandeis may also terminate 
any license granted under the Brandeis Agreement if we fail to timely achieve certain regulatory milestone events.

Trade Secrets

We also rely on trade secrets, technical know-how and continuing innovation to develop and maintain our 

competitive advantage.  We require inventors who are identified on any company-owned patent applications to assign 
rights to us.  We also rely on confidentiality agreements with our employees, consultants and other advisors to protect our 
proprietary information.  Our policy is to require third parties that receive material confidential information to enter into 
confidentiality agreements with us.

Trademarks

Our trademark MeiraGTx has been registered in the U.S. and EU.

Government Regulation and Product Approval

Governmental 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, labeling, packaging, promotion, storage, advertising, 
distribution, marketing, post-approval monitoring and reporting and export and import of products such as those we are 
developing.  The processes for obtaining regulatory approvals in the United States and in foreign countries and 
jurisdictions, along with subsequent compliance with applicable statutes and regulations and other regulatory authorities, 
are extensive and require the expenditure of substantial time and financial resources.

FDA Approval Process

We expect our product candidates to be regulated as biologics.  Biological products, including gene therapy 

products, are subject to extensive regulation by the FDA under the Federal Food, Drug, and Cosmetic Act, or FDCA, and 
the Public Health Service Act, or PHSA, and other federal, state, local and foreign statutes and regulations.  Both the 
FDCA and the PHSA and their corresponding regulations govern, among other things, the research, development, safety, 

27

Table of Contents

testing, packaging, manufacture, storage, recordkeeping, approval, labeling, promotion and marketing, distribution, post-
approval monitoring and reporting, sampling, and import and export of biological products.  

U.S. Biological Products Development Process

Our products must be approved by the FDA through the Biologics License Application, or BLA, process before 

they may be legally marketed in the United States.  The process required by the FDA before a biologic may be marketed in 
the United States generally involves the following:

● completion of extensive nonclinical studies, sometimes referred to as preclinical laboratory tests, and

preclinical studies and applicable requirements for the humane use of laboratory animals and formulation
studies in accordance with applicable regulations, including good laboratory practices, or GLPs;

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

● approval by an independent Institutional Review Board, or IRB, or ethics committee at each clinical site

before the trial is commenced;

● performance of adequate and well controlled human clinical trials according to the FDA’s regulations

commonly referred to as good clinical practices, or GCPs, and any additional requirements for the protection
of human research subjects and their health information, to establish the safety and efficacy of the proposed
biological product for its intended use;

● submission to the FDA of a BLA for marketing approval that includes substantive evidence of safety, purity,

potency and efficacy from results of nonclinical testing and clinical trials;

● satisfactory completion of an FDA inspection of the manufacturing facility or facilities where the biological

product is produced to assess compliance with cGMP to assure that the facilities, methods and controls are
adequate to preserve the biological product’s identity, strength, quality and purity;

● potential FDA audit of the nonclinical and clinical study sites that generated the data in support of the BLA;

and

● FDA review and approval, or licensure, of the BLA.

Before testing any biological product candidate, including a gene therapy product, in humans, the product 

candidate enters the preclinical testing stage.  Preclinical tests, also referred to as nonclinical studies, include laboratory 
evaluations of product chemistry, toxicity and formulation, as well as animal studies to assess the potential safety and 
activity of the product candidate.  The conduct of the preclinical tests must comply with federal regulations and 
requirements, including GLPs.  The clinical trial sponsor must submit the results of the preclinical tests, together with 
manufacturing and controls, information about product chemistry, analytical data, any available clinical data or literature 
and a proposed clinical protocol, to the FDA as part of the IND.  Some preclinical testing, such as reproductive toxicity 
tests and carcinogenicity in animals, may continue even after the IND is submitted.  The IND automatically becomes 
effective 30 days after receipt by the FDA, after which human clinical trials may begin unless the FDA places the clinical 
trial on a clinical hold within that 30-day time period.  In such a case, the IND sponsor and the FDA must resolve any 
outstanding concerns before the clinical trial can begin.  The FDA may also impose clinical holds on a biological product 
candidate at any time before or during clinical trials due to safety concerns or non-compliance.  If the FDA imposes a 
clinical hold, trials may not recommence without FDA authorization and then only under terms authorized by the FDA.  

28

Table of Contents

In addition to the IND submission process, sponsors of certain human clinical trials of cells containing 

recombinant or synthetic nucleic acid molecules, including human gene transfer studies, are subject to evaluation and 
assessment by an institutional biosafety committee, or IBC, a local institutional committee that reviews and oversees 
research utilizing recombinant or synthetic nucleic acid molecules at that institution, pursuant to the National Institutes of 
Health’s Guidelines for Research Involving Recombinant or Synthetic Nucleic Acid Molecules, or NIH Guidelines.  The 
IBC assesses the safety of the research and identifies any potential risk to the public health or the environment, and such 
review may result in some delay before initiation of a clinical trial.  While the NIH Guidelines are not mandatory unless the 
research in question is being conducted at or sponsored by institutions receiving NIH funding of recombinant or synthetic 
nucleic acid molecule research, many companies and other institutions not otherwise subject to the NIH Guidelines 
voluntarily follow them.

Clinical trials involve the administration of the biological product candidate to healthy volunteers or patients 
under the supervision of qualified investigators, generally physicians not employed by or under the study sponsor’s control.  
Clinical trials are conducted under protocols detailing, among other things, the objectives of the clinical trial, dosing 
procedures, subject selection and exclusion criteria, the efficacy measurements to be evaluated and the parameters to be 
used to monitor subject safety, including stopping rules that assure a clinical trial will be stopped if certain adverse events 
should occur.  Each protocol and any amendments to the protocol must be submitted to the FDA as part of the IND.  
Clinical trials must be conducted and monitored in accordance with the FDA’s regulations comprising the GCP 
requirements, including the requirement that all research subjects provide informed consent.  Further, each clinical trial 
must be reviewed and approved by an independent institutional review board, or IRB, at or servicing each institution at 
which the clinical trial will be conducted.  An IRB is charged with protecting the welfare and rights of study participants 
and considers such items as whether the risks to individuals participating in the clinical trials are minimized and are 
reasonable in relation to anticipated benefits.  The IRB also approves the form and content of the informed consent that 
must be signed by each clinical trial subject or his or her legal representative and must monitor the clinical trial until 
completed.  

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

● Phase 1.  The biological product candidate is initially introduced into healthy human subjects and tested for 
safety.  In the case of some products for severe or life-threatening diseases, 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 2.  The biological product candidate is evaluated 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, optimal dosage and dosing schedule.

● Phase 3.  Clinical trials are undertaken to further evaluate dosage, clinical efficacy, potency, and safety in an 
expanded patient population at geographically dispersed clinical trial sites.  These clinical trials are intended 
to establish the overall risk/benefit ratio of the product and provide an adequate basis for product labeling.

In most cases, the FDA requires two adequate and well controlled Phase 3 clinical trials to demonstrate the safety 

and efficacy of a biological product. In some instances, a single Phase 3 trial, together with other confirmatory evidence 
may be sufficient to support a BLA submission.  Post-approval clinical trials, sometimes referred to as Phase 4 clinical 
trials, may be conducted after initial marketing approval.  These clinical trials are used to gain additional experience from 
the treatment of patients in the intended therapeutic indication, particularly for long-term safety follow-up.  The FDA 
recommends that sponsors observe subjects for potential gene therapy-related delayed adverse events for a 15-year period, 
including a minimum of five years of annual examinations followed by ten years of annual queries, either in person or by 
questionnaire.

29

Table of Contents

During all phases of clinical development, regulatory agencies require extensive monitoring and auditing of all 

clinical activities, clinical data, and clinical trial investigators.  Annual progress reports detailing the results of the clinical 
trials must be submitted to the FDA.  Written IND safety reports must be promptly submitted to the FDA, the NIH and the 
investigators for serious and unexpected adverse events, any findings from other trials, tests in laboratory animals or in
vitro testing that suggest a significant risk for human subjects, or any clinically important increase in the rate of a serious 
suspected adverse reaction over that listed in the protocol or investigator brochure.  The sponsor must submit an IND safety 
report within 15 calendar days after the sponsor determines that the information qualifies for reporting.  The sponsor also 
must notify the FDA of any unexpected fatal or life-threatening suspected adverse reaction within seven calendar days after 
the sponsor’s initial receipt of the information.  Phase 1, Phase 2 and Phase 3 clinical trials may not be completed 
successfully within any specified period, if at all.  The FDA or the sponsor or its data safety monitoring board may suspend 
or permanently discontinue a clinical trial at any time on various grounds, including a finding that the research subjects or 
patients are being exposed to an unacceptable health risk or the clinical trial is not being conducted in accordance with 
FDA regulations.  Similarly, an IRB can suspend or terminate approval of a clinical study at its institution if the clinical 
trial is not being conducted in accordance with the IRB’s requirements or if the biological product candidate has been 
associated with unexpected serious harm to patients.  The FDA and the IRB may also halt, terminate or impose other 
conditions if either believes the patients are subject to unacceptable risk.

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

Concurrent with clinical trials, companies usually complete additional animal trials and must also develop 
additional information about the physical characteristics of the biological product candidate as well as finalize a process for 
manufacturing the product in commercial quantities in accordance with cGMP requirements.  To help reduce the risk of the 
introduction of adventitious agents with use of biological products, the PHSA emphasizes the importance of manufacturing 
control for products whose attributes cannot be precisely defined.  The manufacturing process must be capable of 
consistently producing quality batches of the product candidate and, among other things, the sponsor must develop 
methods for testing the identity, strength, quality, potency and purity of the final biological product.  Additionally, 
appropriate packaging must be selected and tested and stability studies must be conducted to demonstrate that the 
biological product candidate does not undergo unacceptable deterioration over its shelf life.

U.S. Review and Approval Processes

After the completion of clinical trials of a biological product candidate, FDA approval of a BLA must be obtained 

before commercial marketing and distribution of the biological product.  The BLA must include results of product 
development, laboratory and animal trials, human trials, information on the manufacture, pharmacology, chemistry and 
controls of the product, proposed labeling and other relevant information.  In addition, under the Pediatric Research Equity 
Act, or PREA, a BLA or supplement to a BLA must contain data to assess the safety and effectiveness of the biological 
product candidate for the claimed indications in all relevant pediatric subpopulations and to support dosing and 
administration for each pediatric subpopulation for which the product is safe and effective.

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 must submit an 
initial Pediatric Study Plan, or PSP, within sixty days after an end-of-Phase 2 meeting or as may be agreed between the 
sponsor and FDA.  The initial PSP must include, among other things, an outline of the pediatric study or studies that the 
sponsor plans to conduct, including to the extent practicable study objectives and design, age groups, relevant endpoints 
and statistical approach, or a justification for not including such detailed information, and any request 

30

Table of Contents

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, along with any other information specified in FDA regulations.  The 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.  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 biological product for an indication for 
which orphan designation has been granted. 

Under the Prescription Drug User Fee Act, or PDUFA, as amended, each BLA must be accompanied by a user 

fee.  The FDA adjusts the PDUFA user fees on an annual basis.  PDUFA also imposes an annual program fee for products.  
Fee waivers or reductions are available in certain circumstances, including a waiver of the application fee for the first 
human drug application filed by a small business.  Additionally, no user fees are assessed on BLAs for products designated 
as orphan drugs, unless the product also includes a non-orphan indication.

Within 60 days following submission of the application, the FDA reviews a BLA submitted to determine if it is 

substantially complete before the agency accepts it for filing.  The FDA may refuse to file any BLA that it deems 
incomplete or not properly reviewable at the time of submission and may request additional information.  In this event, the 
BLA must be resubmitted with the additional information.  The resubmitted application is also subject to an initial review 
before the FDA accepts it for filing.  Once the submission is accepted for filing, the FDA begins an in-depth substantive 
review of the BLA.  The FDA’s goal is to complete the review of standard BLAs within ten months after it accepts an 
application for filing, or, if the application qualifies for priority review, six months after the FDA accepts the application 
for filing.  In both standard and priority reviews, the review process is often significantly extended by FDA requests for 
additional information or clarification. 

The FDA reviews the BLA to determine, among other things, whether the proposed product is safe and potent, or 

effective, for its intended use, and has an acceptable purity profile, and whether the product is being manufactured in 
accordance with cGMP requirements to assure and preserve the product’s identity, safety, strength, quality, potency and 
purity.  The FDA may refer applications for novel biological products or biological products that present difficult questions 
of safety or efficacy to an advisory committee, typically a panel that includes clinicians and other experts, for review, 
evaluation and a recommendation as to whether the application should be approved and under what conditions.  The FDA 
is not bound by the recommendations of an advisory committee, but it considers such recommendations carefully when 
making decisions.  During the biological product approval process, the FDA also will determine whether a Risk Evaluation 
and Mitigation Strategy, or REMS, is necessary to assure the safe use of the biological product candidate.  If the FDA 
concludes a REMS is needed, the sponsor of the BLA must submit a proposed REMS; the FDA will not approve the BLA 
without a REMS, if required.

Before approving a BLA, the FDA will inspect the facilities at which the product is manufactured.  The FDA will 
not approve the product unless it determines that the manufacturing processes and facilities are in compliance with cGMP 
requirements and adequate to assure consistent production of the product within required specifications.  Additionally, 
before approving a BLA, the FDA will typically inspect one or more clinical sites to assure that the clinical trials were 
conducted in compliance with IND study requirements and GCP requirements.  To assure cGMP and GCP compliance, an 
applicant must incur significant expenditure of time, money and effort in the areas of training, record keeping, production, 
and quality control.

Notwithstanding the submission of relevant data and information, the FDA may ultimately decide that the BLA 

does not satisfy its regulatory criteria for approval and deny approval.  If the agency decides not to approve the BLA in its 
present form, the FDA will issue a complete response letter that usually describes all of the specific deficiencies in the 
BLA identified by the FDA.  The deficiencies identified may be minor, for example, requiring labeling changes, or major, 
for example, requiring additional clinical trials.  Additionally, the complete response letter may include recommended 
actions that the applicant might take to place the application in a condition for approval.  If a complete response letter is 
issued, the applicant may either resubmit the BLA, addressing all of the deficiencies identified in the 

31

Table of Contents

letter, or withdraw the application.  If, or when, those deficiencies have been addressed to the FDA’s satisfaction in a 
resubmission of the BLA, the FDA will issue an approval letter.  Under the current PDUFA guidelines, the FDA has 
committed to reviewing such resubmissions in two or six months of receipt depending on the type of information included.

If regulatory approval of a product is granted, such approval will be granted for particular indications and may 

entail limitations on the indicated uses for which such product may be marketed.  For example, the FDA may approve the 
BLA with a REMS, to ensure the benefits of the product outweigh its potential risks.  A REMS is a safety strategy to 
manage a known or potential serious risk associated with a medicine and to enable patients to have continued access to 
such medicines by managing their safe use, and 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.  
The FDA also may condition approval on, among other things, changes to proposed labeling or the development of 
adequate controls and specifications.  The requirement for a REMS can materially affect the potential market and 
profitability of the product.

Once approved, the FDA may withdraw the product approval if compliance with pre- and post-marketing 

requirements is not maintained or if problems occur after the product reaches the marketplace.  Changes to some of the 
conditions established in an approved BLA, including changes in indications, product labeling, manufacturing processes or 
facilities, require submission and FDA approval of a new BLA or BLA supplement before the change can be implemented.  
A BLA supplement for a new indication typically requires clinical data similar to that in the original application, and the 
FDA uses the same procedures and actions in reviewing BLA supplements as it does in reviewing BLAs.  The FDA may 
require one or more Phase 4 post-market studies or surveillance to further assess and monitor the product’s safety and 
effectiveness after commercialization, and may limit further marketing of the product based on the results of these post-
marketing studies.

Orphan Drug Designation

The FDA may grant orphan drug designation to drugs or biologics intended to treat a rare disease or condition that 

affects fewer than 200,000 individuals in the United States, or if it affects more than 200,000 individuals in the United 
States, there is no reasonable expectation that the cost of developing and marketing the drug or biologic for this type of 
disease or condition will be recovered from its sales in the United States.  Orphan drug designation must be requested 
before submitting a BLA.  After the FDA grants orphan product designation, the identity of the therapeutic agent and its 
potential orphan use are disclosed publicly by the FDA.  Orphan drug designation does not convey any advantage in or 
shorten the duration of the regulatory review and approval process.

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 BLA user-fee waivers.  In addition, if a product receives the first 
FDA approval for the indication for which it has orphan designation, the product is entitled to orphan drug exclusivity, 
which means the FDA may not approve any other application, including a full BLA, to market the same drug or biologic 
for the same disease or condition for a period of seven years, except in limited circumstances, such as a showing of clinical 
superiority over the product with orphan exclusivity or where the manufacturer with orphan exclusivity is unable to assure 
sufficient quantities of the approved orphan-designated product.  Competitors, however, may receive approval of different 
products for the indication for which the orphan product has exclusivity or obtain approval for the same product but for a 
different indication for which the orphan product has exclusivity.  Orphan product exclusivity also could block the approval 
of one of our products for seven years if a competitor obtains approval of the same biological product as defined by the 
FDA or if our product candidate is determined to be contained within the competitor’s product for the same indication or 
disease.  If a drug or biological product designated as an orphan product receives marketing approval for an indication 
broader than what is designated, it may not be entitled to orphan product exclusivity.  In addition, exclusive marketing 
rights in the United States 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.

32

Table of Contents

Expedited Development and Review Programs

The FDA has a Fast Track program that is intended to expedite or facilitate the process for reviewing new 
biological products that meet certain criteria.  Specifically, new biological products are eligible for Fast Track designation 
if they are intended to treat a serious or life-threatening disease or condition and demonstrate the potential to address unmet 
medical needs for the disease or 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 biologic may request that the FDA designate the 
biologic as a Fast Track product at any time during clinical development of the product.  The FDA must determine if the 
biologic product candidate qualifies for Fast Track designation within 60 days of receipt of the sponsor’s request.  Unique 
to a Fast Track 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. In addition, a Fast Track 
designated product is eligible for more frequent meetings with the FDA to discuss the biologic product's development plan 
and ensure collection of appropriate data needed to support approval, and may result in more frequent written 
communication from the FDA about such things as the design of the proposed clinical trials and use of biomarkers.

In addition, the FDA established a Breakthrough Therapy designation which is intended to expedite the 

development and review of products that are intended to treat serious or life-threatening diseases or conditions.  A 
Breakthrough Therapy-designated product candidate is defined as a drug or biologic that is intended, alone or in 
combination with one or more other drugs or biologics, 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 features of Fast Track designation, as well as more intensive FDA 
interaction and guidance.

Any product submitted to the FDA for marketing, including a product that has received a Fast Track or 
Breakthrough Therapy designation, may be eligible for other types of FDA programs intended to expedite development 
and review, such as priority review and accelerated approval.  An application seeking marketing approval for a biologic 
product is eligible for priority review if the biologic has the potential to provide safe and effective therapy where no 
satisfactory alternative therapy exists or there is potential for 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 biological product designated for priority review in an effort to facilitate the review.  
Priority review means the FDA’s goal is to take action on an application within six months (compared to 10 months under 
standard review).

Additionally, a product may be eligible for accelerated approval.  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 be eligible for 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 or 
mortality or other clinical benefit, taking into account the severity, rarity, or prevalence of the condition and the availability 
or lack of alternative treatments.  As a condition of approval, the FDA may require that a sponsor of a biological product 
subject to accelerated approval perform adequate and well-controlled post-marketing Phase 4 clinical trials.  Failure to 
conduct required post-approval trials, or to confirm a clinical benefit during post-marketing trials, will allow the FDA to 
withdraw the approved biologic product from the market on an expedited basis.  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.  Fast Track designation, priority review and accelerated approval do not change the 
standards for approval but may expedite the development or approval process.

33

Table of Contents

Furthermore, as part of its implementation of the 21st Century Cures Act, the FDA established the Regenerative 

Medicine Advanced Therapy, or RMAT, designation, to facilitate an efficient development program for, and expedite 
review of, certain drugs and biological products.  A biological product is eligible for RMAT designation if it qualifies as a 
RMAT, which is defined as a cell therapy, therapeutic tissue engineering product, human cell and tissue product, or any 
combination product using such therapies or products, with limited exceptions, and is intended to treat, modify, reverse, or 
cure a serious or life-threatening disease or condition and for which preliminary clinical evidence indicates that the 
biological product has the potential to address unmet medical needs for such a disease or condition.  Like Breakthrough 
Therapy designation, RMAT designation provides potential benefits that include more frequent meetings with FDA to 
discuss the development plan for the product candidate, and eligibility for rolling review and priority review.  Products 
granted RMAT designation may also be eligible for accelerated approval on the basis of a surrogate or intermediate 
endpoint reasonably likely to predict long-term clinical benefit, or reliance upon data obtained from a meaningful number 
of sites, including through expansion to additional sites.  RMAT-designated products that receive accelerated approval may, 
as appropriate, fulfill their post-approval requirements through the submission of clinical evidence, clinical trials, patient 
registries, or other sources of real world evidence (such as electronic health records); through the collection of larger 
confirmatory data sets; or via post-approval monitoring of all patients treated with such therapy prior to approval of the 
therapy.

Fast Track designation, priority review, accelerated approval, Breakthrough Therapy designation and RMAT 

designation do not change the standards for approval but may expedite the development or approval process.  Even if these 
designations are received, the FDA may later decide that a product candidate no longer meets the conditions for 
qualification. 

Post-Approval Requirements

Rigorous and extensive FDA regulation of biological products continues after approval, particularly with respect 
to cGMP requirements.  Manufacturers of our products are required to comply with applicable requirements in the cGMP 
regulations, including quality control and quality assurance and maintenance of records and documentation.  Other post-
approval requirements applicable to biological products, include reporting of cGMP deviations that may affect the identity, 
potency, purity and overall safety of a distributed product, record-keeping requirements, reporting of adverse effects, 
reporting updated safety and efficacy information, and complying with electronic record and signature requirements.

After a BLA is approved, the product also may be subject to official lot release.  As part of the manufacturing 

process, the manufacturer is required to perform certain tests on each lot of the product before it is released for distribution.  
If the product is subject to official release by the FDA, the manufacturer submits samples of each lot of product to the FDA 
together with a release protocol showing a summary of the history of manufacture of the lot and the results of all of the 
manufacturer’s tests performed on the lot.  The FDA also may perform certain confirmatory tests on lots of some products, 
such as viral vaccines, before releasing the lots for distribution by the manufacturer.  In addition, the FDA conducts 
laboratory research related to the regulatory standards on the safety, purity, potency, and effectiveness of biological 
products.

The FDA may require one or more Phase 4 post-market trials or surveillance to further assess and monitor the 
product’s safety and effectiveness after commercialization, and may limit further marketing of the product based on the 
results of these post-marketing studies.  We also must comply with the FDA’s advertising and promotion requirements, 
such as those related to direct-to-consumer advertising, the prohibition on promoting products for uses or in patient 
populations that are not described in the product’s approved labeling (known as “off-label use”), industry-sponsored 
scientific and educational activities, and promotional activities involving the Internet.  Biologics may be marketed only for 
the approved indications and in accordance with the provisions of the approved labeling.

Discovery of previously unknown problems or the failure to comply with the applicable regulatory requirements

may result in restrictions on the marketing of a product or withdrawal of the product from the market as

34

Table of Contents

well as possible civil or criminal sanctions.  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 or manufacturer to 
administrative or judicial civil or criminal sanctions and adverse publicity.  FDA sanctions could include refusal to approve 
pending applications, withdrawal of an approval, clinical hold, warning or untitled letters, product recalls, product seizures, 
total or partial suspension of production or distribution, injunctions, fines, refusals of government contracts, mandated 
corrective advertising or communications with doctors, debarment, restitution, disgorgement of profits, or civil or criminal 
penalties. 

Biological product manufacturers and other entities involved in the manufacture and distribution of approved 

biological products 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 requirements and 
other laws.  Accordingly, manufacturers must continue to expend time, money, and effort in the area of production and 
quality control to maintain cGMP compliance.  Discovery of problems with a product after approval may result in 
restrictions on a product, manufacturer, or holder of an approved BLA, including withdrawal of the product from the 
market.  In addition, changes to the manufacturing process or facility generally require prior FDA approval before being 
implemented and other types of changes to the approved product, such as adding new indications and additional labeling 
claims, are also subject to further FDA review and approval.

Biosimilars and Exclusivity

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

Under the BPCIA, an application for a biosimilar product may not be submitted to the FDA until four years 
following the date that the reference product was first licensed by the FDA.  In addition, the approval of a biosimilar 
product may not be made effective by the FDA until 12 years from the date on which the reference product was first 
licensed.  During this 12-year period of exclusivity, another company may still market a competing version of the reference 
product if the FDA approves a full BLA for the competing product containing the sponsor’s own preclinical data and data 
from adequate and well-controlled clinical trials to demonstrate the safety, purity and potency of their product.  The BPCIA 
also created certain exclusivity periods for biosimilars approved as interchangeable products.  

A biological product can also obtain pediatric market exclusivity in the United States.  Pediatric exclusivity, if 

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

Other Healthcare Laws and Compliance Requirements

Pharmaceutical companies are subject to additional healthcare regulation and enforcement by the federal

government and by authorities in the states and foreign jurisdictions in which they conduct their business, which may
constrain the financial arrangements and relationships through which we conduct our research, as well as, sell, market

35

Table of Contents

and distribute any products for which we obtain marketing approval. Such laws include, without limitation, federal and 
state anti-kickback, fraud and abuse, false claims and transparency laws and regulations regarding drug pricing and 
payments or other transfers of value made to physicians and other licensed healthcare professionals.  If their operations are 
found to be in violation of any of such laws or any other governmental regulations that apply, they may be subject to 
penalties, including, without limitation, administrative, civil and criminal penalties, damages, fines, disgorgement, the 
curtailment or restructuring of operations, exclusion from participation in federal and state healthcare programs, integrity 
oversight and reporting obligations to resolve allegations of non-compliance and imprisonment.

Coverage and Reimbursement

Significant uncertainty exists as to the coverage and reimbursement status of any pharmaceutical or biological 

product for which we obtain regulatory approval.  Sales of any product depend, in part, on the extent to which such product 
will be covered by third-party payors, such as federal, state, and foreign government healthcare programs, commercial 
insurance and managed healthcare organizations, and the level of reimbursement for such product by third-party payors.  
Decisions regarding the extent of coverage and amount of reimbursement to be provided are made on a plan-by-plan basis.  
For products administered under the supervision of a physician, obtaining coverage and adequate reimbursement may be 
particularly difficult because of the higher prices often associated with such drugs.  Additionally, separate reimbursement 
for the product itself or the treatment or procedure in which the product is used may not be available, which may impact 
physician utilization.

In addition, the U.S. government, state legislatures and foreign governments have continued implementing cost-

containment programs, including price controls, restrictions on coverage and reimbursement and requirements for 
substitution of generic products.  Third party payors are increasingly challenging the prices charged for medical products 
and services, examining the medical necessity and reviewing the cost effectiveness of pharmaceutical or biological 
products, medical devices and medical services, in addition to questioning safety and efficacy.  Adoption of price controls 
and cost-containment measures, and adoption of more restrictive policies in jurisdictions with existing controls and 
measures, could further limit sales of any product.  Decreases in third-party reimbursement for any product or a decision by 
a third-party payor not to cover a product could reduce physician usage and patient demand for the product.

Healthcare Reform

The United States and some foreign jurisdictions are considering or have enacted a number of reform proposals to 

change the healthcare system.  There is significant interest in promoting changes in healthcare systems with the stated 
goals of containing healthcare costs, improving quality or expanding access.  In the United States, the pharmaceutical 
industry has been a particular focus of these efforts and has been significantly affected by federal and state legislative 
initiatives, including those designed to limit the pricing, coverage, and reimbursement of pharmaceutical and 
biopharmaceutical products, especially under government-funded health care programs, and increased governmental 
control of drug pricing.

In March 2010, the Patient Protection and Affordable Care Act, or the ACA, was signed into law, which 
substantially changed the way healthcare is financed by both governmental and private insurers in the United States, and 
significantly affected the pharmaceutical industry.  The ACA contained a number of provisions of particular import to the 
pharmaceutical and biotechnology industries, including, but not limited to, those governing enrollment in federal 
healthcare programs, a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate 
Program are calculated for drugs that are inhaled, infused, instilled, implanted or injected, and annual fees based on 
pharmaceutical companies’ share of sales to federal health care programs.  

Since its enactment, there have been judicial, Congressional and executive branch challenges to certain aspects of 
the ACA.  On June 17, 2021, the U.S. Supreme Court dismissed the most recent judicial challenge to the ACA brought by
several states without specifically ruling on the constitutionality of the ACA. Prior to the Supreme Court’s decision,
President Biden issued an executive order to initiate a special enrollment period for purposes of obtaining

36

Table of Contents

health insurance coverage through the ACA marketplace from February 15, 2021 through August 15, 2021. The executive
order also instructed certain governmental agencies to review and reconsider their existing policies and rules that limit
access to healthcare, including among others, reexamining Medicaid demonstration projects and waiver programs that
include work requirements, and policies that create unnecessary barriers to obtaining access to health insurance coverage
through Medicaid or the ACA.

Other legislative changes have been proposed and adopted since the ACA was enacted, including aggregate

reductions of Medicare payments to providers of 2% per fiscal year, which was temporarily suspended from May 1, 2020
through March 31, 2022, and reduced payments to several types of Medicare providers.  Moreover, there has recently been 
heightened governmental scrutiny over the manner in which manufacturers set prices for their marketed products, which 
has resulted in several Congressional inquiries and proposed and enacted federal and state legislation designed to, among 
other things, bring more transparency to product pricing, review the relationship between pricing and manufacturer patient 
programs, and reform government program reimbursement methodologies for drug products.  At the state level, legislatures 
have increasingly passed legislation and implemented regulations designed to control pharmaceutical product pricing, 
including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost 
disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and 
bulk purchasing.

Additionally, on May 30, 2018, the Trickett Wendler, Frank Mongiello, Jordan McLinn, and Matthew Bellina 
Right to Try Act of 2017, or the Right to Try Act, was signed into law.  The law, among other things, provides a federal 
framework for certain patients to access certain investigational new drug products that have completed a Phase 1 clinical 
trial and that are undergoing investigation for FDA approval.  Under certain circumstances, eligible patients can seek 
treatment without enrolling in clinical trials and without obtaining FDA permission under the FDA expanded access 
program.  There is no obligation for a pharmaceutical manufacturer to make its drug products available to eligible patients 
as a result of the Right to Try Act.

U.S. Data Privacy and Security Laws

In the United States, numerous federal and state laws and regulations, including data breach notification laws,

health information privacy and security laws, including the Health Insurance Portability and Accountability Act of 1996, as
amended by the Health Information Technology for Economic and Clinical Health Act of 2009, and regulations
promulgated thereunder, or collectively, HIPAA, and federal and state consumer protection laws and regulations (e.g.,
Section 5 of the Federal Trade Commission Act), that govern the collection, use, disclosure, and protection of health-
related and other personal information could apply to our operations or the operations of our partners. In addition, certain
state laws, such as the California Consumer Privacy Act, or CCPA, the California Privacy Rights Act, or CPRA, govern the
privacy and security of personal information, including health-related information in certain circumstances, some of which
are more stringent than HIPAA and many of which differ from each other in significant ways and may not have the same
effect, thus complicating compliance efforts. Failure to comply with these laws, where applicable, can result in the
imposition of significant civil and/or criminal penalties and private litigation. Privacy and security laws, regulations, and
other obligations are constantly evolving, may conflict with each other to make compliance efforts more challenging, and
can result in investigations, proceedings, or actions that lead to significant penalties and restrictions on data processing.

U.S. Foreign Corrupt Practices Act

The U.S. Foreign Corrupt Practices Act of 1977, or FCPA, prohibits U.S. corporations and individuals from 
engaging in certain activities to obtain or retain business or secure any improper advantage, or to influence a person 
working in an official capacity.  It is illegal to pay, offer to pay or authorize the payment of anything of value to any 
employee or official of a foreign government or public international organization, or political party, political party official, 
or political candidate in an attempt to obtain or retain business or to otherwise influence a person working in an official 
capacity.  The scope of the FCPA also includes employees and officials of state-owned or controlled enterprises, 

37

Table of Contents

which may include healthcare professionals in many countries.  Equivalent laws have been adopted in other foreign 
countries that impose similar obligations.

Government Regulation Outside of the United States

In addition to regulations in the United States, we may be subject to a variety of regulations in other jurisdictions, 

for instance in the UK or EU, governing, among other things, clinical trials, marketing authorizations, post-marketing 
authorization requirements and any commercial sales and distribution of our products.  Because biologically sourced raw 
materials are subject to unique contamination risks, their use may be restricted in some countries. In addition, ethical, 
social and legal concerns about gene therapy, genetic testing, genetic research and gene-editing technology, could result in 
additional regulations restricting or prohibiting the processes we may use.

Whether or not we obtain FDA approval of a product, we must obtain the requisite approvals from regulatory 

authorities in foreign countries prior to the commencement of clinical trials or marketing of the product in those countries.  
The requirements and process governing the conduct of clinical trials, product licensing, pricing and reimbursement vary 
from country to country.  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.

Non-Clinical Studies and Clinical Trials

Similar to the United States, the various phases of non-clinical and clinical research abroad are subject to

significant regulatory controls.

Non-clinical studies are performed to demonstrate the health or environmental safety of new chemical or
biological substances. Non-clinical studies must be conducted in compliance with the principles of GLP, as set forth in EU
Directive 2004/10/EC. In particular, non-clinical studies, both in vitro and in vivo, must be planned, performed, monitored,
recorded, reported and archived in accordance with the GLP principles, which define a set of rules and criteria for a quality
system for the organizational process and the conditions for non-clinical studies. These GLP standards reflect the
Organization for Economic Co-operation and Development requirements.

Clinical trials of medicinal products in the EU must be conducted in accordance with EU and national regulations 

and the International Conference on Harmonization, or ICH, guidelines on GCPs, as well as the applicable regulatory 
requirements and the ethical principles that have their origin in the Declaration of Helsinki.  Additional GCP guidelines 
from the European Commission, focusing in particular on traceability, apply to clinical trials of ATMPs.  If the sponsor of 
the clinical trial is not established within the EU, it must appoint an entity within the EU to act as its legal representative.  
The sponsor must take out a clinical trial insurance policy, and in most EU member states, the sponsor is liable to provide 
‘no fault’ compensation to any study subject injured in the clinical trial.

The regulatory landscape related to clinical trials in the EU has been subject to recent changes. The EU Clinical

Trials Regulation, or CTR, which was adopted in April 2014 and repeals the EU Clinical Trials Directive, became
applicable on January 31, 2022. Unlike directives, the CTR is directly applicable in all EU member states without the need
for member states to further implement it into national law. The CTR notably harmonizes the assessment and supervision
processes for clinical trials throughout the EU via a Clinical Trials Information System, which contains a centralized EU
portal and database.

While the Clinical Trials Directive required a separate clinical trial application, or CTA, to be submitted in each
member state, to both the competent national health authority and an independent ethics committee, much like the FDA
and IRB respectively, the CTR introduces a centralized process and only requires the submission of a single application to
all member states concerned. The CTR allows sponsors to make a single submission to both the competent authority and an
ethics committee in each member state, leading to a single decision per member state. The CTA must include,

38

Table of Contents

among other things, a copy of the trial protocol and an investigational medicinal product dossier containing information
about the manufacture and quality of the medicinal product under investigation. The assessment procedure of the CTA has
been harmonized as well, including a joint assessment by all member states concerned, and a separate assessment by each
member state with respect to specific requirements related to its own territory, including ethics rules. Each member state’s
decision is communicated to the sponsor via the centralized EU portal. Once the CTA is approved, clinical study
development may proceed.

The CTR foresees a three-year transition period. The extent to which ongoing and new clinical trials will be
governed by the CTR varies. For clinical trials whose CTA was made under the Clinical Trials Directive before January 31,
2022, the Clinical Trials Directive will continue to apply on a transitional basis for three years. Additionally, sponsors may
still choose to submit a CTA under either the Clinical Trials Directive or the CTR until January 31, 2023 and, if authorized,
those will be governed by the Clinical Trials Directive until January 31, 2025. By that date, all ongoing trials will become
subject to the provisions of the CTR.

Medicines used in clinical trials must be manufactured in accordance with good manufacturing practices, or GMP.

Other national and EU-wide regulatory requirements may also apply.

During the development of a medicinal product, the EMA and national regulators within the EU provide the 

opportunity for dialogue and guidance on the development program.  At the EMA level, this is usually done in the form of 
scientific advice, which is given by the Scientific Advice Working Party of the Committee for Medicinal Products for 
Human Use, or CHMP.  A fee is incurred with each scientific advice procedure.  Advice from the EMA is typically 
provided based on questions concerning, for example, quality (chemistry, manufacturing and controls testing), nonclinical 
testing and clinical trials, and pharmacovigilance plans and risk-management programs.  Advice is not legally binding with 
regard to any future marketing authorization application of the product concerned.

Marketing Authorizations

In the EU, medicinal products can only be placed on the market after obtaining a marketing authorization, or MA. 
To obtain regulatory approval of an investigational chemical or biological product in the EU, we must submit a marketing 
authorization application, or MAA.    The process for doing this depends, among other things, on the nature of the 
medicinal product.

“Centralized MAs” issued by the European Commission, based on the opinion of the EMA, are valid across the 

entire territory of the EU.  The centralized procedure is compulsory for certain types of product candidates, such as: 
(i) medicinal products derived from biotechnology processes, such as genetic engineering, (ii) medicinal products 
containing a new active substance indicated for the treatment of certain diseases, such as HIV/AIDS, cancer, diabetes, 
neurodegenerative diseases, autoimmune and other immune dysfunctions and viral diseases, (iii) designated orphan 
medicines and (iv) ATMPs, such as gene therapy, somatic cell therapy or tissue-engineered medicines.  The centralized 
procedure is optional for product candidates containing a new active substance not yet authorized in the EU, or for product 
candidates that constitute a significant therapeutic, scientific or technical innovation or which are in the interest of public 
health in the EU.

The Committee for Advanced Therapies, or CAT, is responsible in conjunction with the CHMP for the evaluation 

of advanced therapy medicinal products, or ATMPs.  The CAT is primarily responsible for the scientific evaluation of 
ATMPs and prepares a draft opinion on the quality, safety and efficacy of each ATMP for which an MAA is submitted.  
The CAT’s opinion is then taken into account by the CHMP when giving its final recommendation regarding the 
authorization of a product in view of the balance of benefits and risks identified.  Although the CAT’s draft opinion is 
submitted to the CHMP for final approval, the CHMP may depart from the draft opinion, if it provides detailed scientific 
justification.  The CHMP and CAT are also responsible for providing guidelines on ATMPs and have published numerous 
guidelines, including specific guidelines on gene therapies and cell therapies.  These guidelines provide additional 
guidance on the factors that the EMA will consider in relation to the development and evaluation of 

39

Table of Contents

ATMPs and include, among other things, the preclinical studies required to characterize ATMPs; the manufacturing and 
control information that should be submitted in an MAA; and post-approval measures required to monitor patients and 
evaluate the long term efficacy and potential adverse reactions of ATMPs.  Although these guidelines are not legally 
binding, we believe that our compliance with them is likely necessary to gain and maintain approval for any of our product 
candidates.

Under the centralized procedure, the maximum timeframe for the evaluation of an MAA by the EMA is 210 days.  

This excludes so-called clock stops, during which additional written or oral information is to be provided by the applicant 
in response to questions asked by the CHMP.  At the end of the review period, the CHMP provides an opinion to the 
European Commission.  If this opinion is favorable, the Commission may then adopt a decision to grant an MA.

  “National MAs” are issued by the competent authorities of the EU member states, only cover their respective 

territory, and are available for product candidates not falling within the mandatory scope of the centralized procedure. 
Where a product has already been authorized for marketing in an EU member state, this national MA can be recognized in 
another member state through the mutual recognition procedure. If the product has not received a national MA in any 
member state at the time of application, it can be approved simultaneously in various member states through the 
decentralized procedure. Under the decentralized procedure an identical dossier is submitted to the competent authorities of 
each of the member states in which the MA is sought, one of which is selected by the applicant as the reference member 
state.

MAs have an initial duration of five years. After these five years, the authorization may be renewed on the basis
of a reevaluation of the risk-benefit balance. Once renewed, the MA is valid for an unlimited period unless the European
Commission or the national competent authority decides, on justified grounds relating to pharmacovigilance, to proceed
with one additional five-year renewal

In exceptional cases, the CHMP might perform an accelerated review of an MAA in no more than 150 days (not 

including clock stops).  Innovative products that target an unmet medical need and are expected to be of major public 
health interest may be eligible for a number of expedited development and review programs, such as the PRIME scheme, 
which provides incentives similar to the Breakthrough Therapy designation in the U.S.  PRIME is a voluntary scheme 
aimed at enhancing the EMA’s support for the development of medicines that target unmet medical needs.  It is based on 
increased interaction and early dialogue with companies developing promising medicines, to optimize their product 
development plans and speed up their evaluation to help them reach patients earlier.  Product developers that benefit from 
PRIME designation can expect to be eligible for accelerated assessment but this is not guaranteed.  Many benefits accrue to 
sponsors of product candidates with PRIME designation, including but not limited to, early and proactive regulatory 
dialogue with the EMA, frequent discussions on clinical trial designs and other development program elements, and 
accelerated MAA assessment once a dossier has been submitted. Importantly, a dedicated contact and rapporteur from the 
CHMP is appointed early in the PRIME scheme facilitating increased understanding of the product at EMA’s committee 
level. An initial meeting initiates these relationships and includes a team of multidisciplinary experts at the EMA to 
provide guidance on the overall development and regulatory strategies.

Moreover, in the EU, the European Commission may grant a so-called “conditional MA” prior to obtaining the 

comprehensive clinical data required for an application for a full MA.  Such conditional MAs may be granted for product 
candidates (including medicines designated as orphan medicinal products), if (i) the risk-benefit balance of the product 
candidate is positive, (ii) it is likely that the applicant will be in a position to provide the required comprehensive clinical 
trial data, (iii) the product fulfills an unmet medical need and (iv) the benefit to public health of the immediate availability 
on the market of the medicinal product concerned outweighs the risk inherent in the fact that additional data are still 
required.  A conditional MA may contain specific obligations to be fulfilled by the MA holder, including obligations with 
respect to the completion of ongoing or new studies, and with respect to the collection of pharmacovigilance data.  
Conditional MAs are valid for one year, and may be renewed annually, if the risk-benefit balance remains positive, and 
after an assessment of the need for additional or modified conditions and/or specific obligations.  The MA can be converted 
into a standard MA once the MA holder fulfils the obligations that were imposed 

40

Table of Contents

and the complete data confirm that the medicine's benefits continue to outweigh its risks. The timelines for the centralized 
procedure described above also apply with respect to the review by the CHMP of applications for a conditional MA.

The European Commission may also grant a so-called “marketing authorization under exceptional circumstances”.  

Such MA is intended for products for which the applicant can demonstrate that it is unable to provide comprehensive data 
on the efficacy and safety under normal conditions of use even after the product has been authorized, because the 
indications for which the product in question is intended are encountered so rarely that the applicant cannot reasonably be 
expected to provide comprehensive evidence, or in the present state of scientific knowledge, comprehensive information 
cannot be provided, or it would be contrary to generally accepted principles of medical ethics to collect such information.  
Consequently, MAs under exceptional circumstances may be granted subject to certain specific obligations, which may 
include the following:

● the applicant must complete an identified program of studies within a time period specified by the competent

authority, the results of which form the basis of a reassessment of the benefit/risk profile;

● the medicinal product in question may be supplied on medical prescription only and may in certain cases be

administered only under strict medical supervision, possibly in a hospital and in the case of a radio-
pharmaceutical, by an authorized person; and

● the package leaflet and any medical information must draw the attention of the medical practitioner to the
fact that the particulars available concerning the medicinal product in question are as yet inadequate in
certain specified respects.

An MA under exceptional circumstances is subject to annual review to reassess the risk-benefit balance in an 
annual reassessment procedure.  Continuation of the authorization is linked to the annual reassessment and a negative 
assessment could potentially result in the MA being suspended or revoked.  The renewal of an MA of a medicinal product 
under exceptional circumstances, however, follows the same rules as a “normal” MA.  Thus, an MA under exceptional 
circumstances is granted for an initial five years, after which the authorization will become valid indefinitely, unless the 
EMA decides that safety grounds merit one additional five-year renewal.  An MA under exceptional circumstances should 
not be granted when a conditional MA is more appropriate.

The EU medicines rules expressly permit the EU member states to adopt national legislation prohibiting or 

restricting the sale, supply or use of any medicinal product containing, consisting of or derived from a specific type of 
human or animal cell, such as embryonic stem cells.  While the products we have in development do not make use of 
embryonic stem cells, it is possible that the national laws in certain EU member states may prohibit or restrict us from 
commercializing our products, even if they have been granted an MA.

Data and Marketing Exclusivity

The EU also provides opportunities for market exclusivity.  Upon receiving MA, reference products generally 

receive eight years of data exclusivity and an additional two years of market exclusivity.  If granted, data exclusivity 
prevents generic or biosimilar applicants from relying on the preclinical and clinical trial data contained in the dossier of 
the reference product when applying for a generic or biosimilar MA in the EU during a period of eight years from the date 
on which the reference product was first authorized in the EU.  The market exclusivity period prevents a successful generic 
or biosimilar applicant from commercializing its product in the EU until ten years have elapsed from the initial MA of the 
reference product in the EU.   The overall ten-year market exclusivity period may be extended to a maximum of eleven 
years if during the first eight years of those ten years, the MA holder obtains an authorization for one or more new 
therapeutic indications with significant clinical benefit over existing therapies. However, there is no guarantee that a 
product will be considered by the EU regulatory authorities to be a new chemical or biological entity, and products may not 
qualify for data exclusivity.

41

Table of Contents

There is a special regime for biosimilars, or biological medicinal products that are similar to a reference medicinal 

product but that do not meet the definition of a generic medicinal product, for example, because of differences in raw 
materials or manufacturing processes.  For such products, the results of appropriate preclinical or clinical trials must be 
provided, and guidelines from the EMA detail the type of quantity of supplementary data to be provided for different types 
of biological product.  There are no such guidelines for complex biological products, such as gene or cell therapy medicinal 
products, and so it is unlikely that biosimilars of those products will currently be approved in the EU.  However, guidance 
from the EMA states that they will be considered in the future in light of the scientific knowledge and regulatory 
experience gained at the time.

Orphan Medicinal Products

The criteria for designating an “orphan medicinal product” in the EU are similar in principle to those in the United 
States.  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 EU when the application is made, or (b) the product, without the benefits derived from orphan status, would 
not generate sufficient return in the EU to justify investment; and (3) there exists no satisfactory method of diagnosis, 
prevention or treatment of such condition authorized for marketing in the EU, or if such a method exists, the product will 
be of significant benefit to those affected by the condition.  

Orphan drug designation entitles a party to incentives such as reduction of fees or fee waivers, protocol assistance, 
and access to the centralized procedure.  The application for orphan drug designation must be submitted before the MAA.  
The applicant will receive a fee reduction for the MAA if the orphan drug designation has been granted, but not if the 
designation is still pending at the time the MA is submitted.  Upon grant of a MA, orphan medicinal products are entitled to 
a ten-year period of market exclusivity for the approved therapeutic indication, which means that regulatory authorities 
cannot accept another MA or grant an MA or accept an application to extend an existing MA in respect of a similar 
medicinal product for the same indication for a period of ten years. The period of market exclusivity is extended by two 
years for orphan medicinal products that have also complied with an agreed pediatric investigation plan, or PIP.  Orphan 
drug designation does not convey any advantage in, or shorten the duration of, the regulatory review and approval process.

The ten-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 or where the prevalence of the condition has increased above the threshold.  
Additionally, an MA may be granted to a similar product for the same indication at any time if (1) the second applicant can 
establish that its product, although similar, is safer, more effective or otherwise clinically superior, (2) the applicant 
consents to a second orphan medicinal product application; or (3) the applicant cannot supply enough orphan medicinal 
product.

Pediatric Development

In the EU, MAAs for new medicinal products have to include the results of trials conducted in the pediatric 

population, in compliance with a PIP agreed with the EMA’s Pediatric Committee, or PDCO.  The PIP sets out the timing 
and measures proposed to generate data to support a pediatric indication of the drug for which an MA is being sought.  The 
PDCO can grant a deferral of the obligation to implement some or all of the measures of the PIP until there are sufficient 
data to demonstrate the efficacy and safety of the product in adults.  Further, the obligation to provide pediatric clinical trial 
data can be waived by the PDCO when these data are not needed or appropriate because the product is likely to be 
ineffective or unsafe in children, the disease or condition for which the product is intended occurs only in adult 
populations, or when the product does not represent a significant therapeutic benefit over existing treatments for pediatric 
patients.  Once the MA is obtained in all EU member states and study results are included in the product information, even 
when negative, the product is eligible for a six-months supplementary protection certificate 

42

Table of Contents

extension (if any is in effect at the time of approval) or, in the case of orphan medicinal products, a two year extension of
the orphan market exclusivity is granted.

Post-Approval Requirements

Similar to the United States, both MA holders and manufacturers of medicinal products are subject to 

comprehensive regulatory oversight by the EMA, the European Commission and/or the competent regulatory authorities of 
the member states. The holder of an MA must establish and maintain a pharmacovigilance system and appoint an 
individual qualified person for pharmacovigilance who is responsible for oversight of that system.  Key obligations include 
expedited reporting of suspected serious adverse reactions and submission of periodic safety update reports, or PSURs.

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

The advertising and promotion of medicinal products is also subject to laws concerning promotion of medicinal 

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

Failure to comply with EU and member state laws that apply to the conduct of clinical trials, manufacturing
approval, MA of medicinal products and marketing of such products, both before and after grant of the MA, manufacturing
of pharmaceutical products, statutory health insurance, bribery and anti-corruption or with other applicable regulatory
requirements may result in administrative, civil or criminal penalties. These penalties could include delays or refusal to
authorize the conduct of clinical trials or to grant MA, product withdrawals and recalls, product seizures, suspension,
withdrawal or variation of the MA, total or partial suspension of production, distribution, manufacturing or clinical trials,
operating restrictions, injunctions, suspension of licenses, fines and criminal penalties.

The aforementioned EU rules are generally applicable in the European Economic Area, or EEA, which consists of

the 27 EU member states plus Iceland, Liechtenstein and Norway.

Pricing and Reimbursement

Even if a medicinal product obtains an MA in the EU, there can be no assurance that reimbursement for such 

product will be secured on a timely basis or at all.  Governments influence the price of medicinal products through their 
pricing and reimbursement rules and control of national healthcare systems that fund a large part of the cost of those 
products to consumers.  Member states are free to restrict the range of pharmaceutical products for which their national 
health insurance systems provide reimbursement, and to control the prices and reimbursement levels of pharmaceutical 
products for human use. Some jurisdictions operate positive and negative list systems under which products may only be 
marketed once a reimbursement price has been agreed to by the government.  Member states may approve a specific price 
or level of reimbursement for the pharmaceutical product, or alternatively adopt a system of direct or indirect controls on 
the profitability of the company responsible for placing the pharmaceutical product on the market, including volume-based 
arrangements, caps and reference pricing mechanisms.  To obtain reimbursement or pricing approval, some of these 
countries may require the completion of clinical trials that compare the cost-effectiveness of a particular product candidate 
to currently available therapies.  Other EU member states allow companies to fix their own prices for 

43

Table of Contents

medicines, but monitor and control company profits.  The downward pressure on healthcare costs in general, particularly 
prescription medicines, has become very intense.  As a result, increasingly high barriers are being erected to the entry of 
new products. In addition, in some countries, cross border imports from low-priced markets exert a commercial pressure on 
pricing within a country.

Brexit and the Regulatory Framework in the United Kingdom

The UK formally left the EU on January 31, 2020, commonly referred to as “Brexit”. The post-Brexit transition
period, during which EU pharmaceutical laws continued to apply to the UK, expired on December 31, 2020. This means
that since January 1, 2021, the UK operates under a distinct regulatory regime. EU pharmaceutical laws now only apply to
the UK in respect of Northern Ireland (as laid out in the Protocol on Ireland and Northern Ireland, including but not limited
to MAAs).

Since January 1, 2021, EU laws which have been transposed into UK law through secondary legislation continue 

to be applicable as “retained EU law”. However, new legislation such as the EU CTR will not be applicable.  The UK 
government adopted the Medicines and Medical Devices Act 2021, which introduces delegated powers in favor of the
Secretary of State or an ‘appropriate authority’ to amend or supplement existing regulations in the area of medicinal
products and medical devices. This allows new rules to be introduced in the future by way of secondary legislation, which
aims to allow flexibility in addressing regulatory gaps and future changes in the fields of human medicines and clinical
trials.

The UK and EU have reached an agreement on their future trading relationship pursuant to the EU-UK Trade and

Cooperation Agreement, or TCA, which includes certain provisions affecting pharmaceutical companies such as customs
and tariffs in relation to healthcare products and provides for the mutual recognition of GMP, inspections of manufacturing
facilities for medicinal products and GMP documents issued. It is important to note that significant regulatory gaps still
exist and the TCA does not contain wholesale mutual recognition of UK and EU pharmaceutical regulations and product
standards.

UK Clinical Trials

It is currently unclear to what extent the UK will seek to align its regulations with the EU.  The UK regulatory

framework in relation to clinical trials is derived from existing EU legislation (as implemented into UK law, through
secondary legislation), and after Brexit, EU laws on clinical trials (including the EU CTR) are no longer directly applicable
in Great Britain (i.e., the UK excluding Northern Ireland). On January 17, 2022, the MHRA launched an eight-week
consultation on reframing the UK legislation for clinical trials. The consultation closes on March 14, 2022 and aims to
streamline clinical trials approvals, enable innovation, enhance clinical trials transparency, enable greater risk
proportionality, and promote patient and public involvement in clinical trials. The outcome of the consultation will be
closely watched and will determine whether the UK chooses to align with the regulation or diverge from it to maintain
regulatory flexibility.

UK Marketing Authorizations

The MHRA is now the UK’s standalone regulator for MAAs. All existing centralized procedure MAs were

automatically converted into UK MAs effective in Great Britain and issued with a UK MA number on January 1, 2021
(unless MA holders opted out of this scheme by January 21, 2021). As a result of the implementation of the Protocol on
Ireland and Northern Ireland, centralized procedure MAs remain valid for marketing products in Northern Ireland. Pending
applications which were submitted to EMA prior to the end of the transition period will either be determined in parallel by
the MHRA, or will be put “on hold” until the CHMP issues a positive decision which can be relied upon by MHRA.
Converted EU MAs will be treated as if they were granted on the date the corresponding centralized procedure MA was
granted and the renewal date will stay the same. If renewals were submitted and no decision was rendered before January
1, 2021, the MHRA will ensure the renewal process is concluded and processed appropriately, and there

44

Table of Contents

will be no need to resubmit the application. From January 1, 2021 the requirements for renewal submissions remain the
same as required by the EMA and the MA holders should continue to submit renewal applications to the MHRA nine
months before they expire (or six months in relation to conditional MAs).

Following January 1, 2021, an applicant for a centralized procedure MA must be established in the EU. After this
date, companies established in the UK can no longer use the centralized procedure and instead must follow one of the UK
national authorization procedures or one of the remaining post-Brexit international cooperation procedures (such as the
Access Consortium) to obtain an MA to market products in the UK. In addition, for a two-year period from January 1,
2021, MHRA may rely on a decision taken by the European Commission on the approval of a new centralized procedure
MA when determining an application for a Great Britain MA; or use the MHRA’s decentralized or mutual recognition
procedures which enable MAs approved in EU member states (or Iceland, Liechtenstein, Norway) to be granted in Great
Britain. Additionally, the ‘Unfettered Access Procedure’ enables MA holders in Northern Ireland to seek recognition in
Great Britain. Post Brexit, the MHRA has updated various aspects of the regulatory regime for medicines in the UK,
including: introducing the Innovative Licensing and Access Procedure to accelerate the time to market and facilitate patient
access for innovative medicines; updates to the UK national approval procedure, introducing a 150-day objective for
assessing applications for MAs in the UK, Great Britain and Northern Ireland and a rolling review process for MA
applications (rather than a consolidated full dossier submission).

UK Orphan Designation

The UK regulatory framework in relation to orphan drug designation is derived from existing EU legislation (as

implemented into UK law, through secondary legislation). The European Commission is currently evaluating new
legislation in relation to orphan medicines, and after Brexit, these laws will no longer be directly applicable in Great
Britain. Since January 1, 2021, there has been no route to obtain pre-MA orphan designation in Great Britain, however, as a
result of the implementation of the Protocol on Ireland and Northern Ireland, EU orphan drug designation and time periods
of market exclusivity still remain valid for marketing products in Northern Ireland. Instead, the MHRA now reviews
applications for Great Britain orphan designation in parallel with the corresponding MA application. The criteria are
essentially the same as under the EU regime, but have been tailored for the Great Britain market, i.e. the prevalence of the
condition in Great Britain (rather than the EU) must not be more than 5 in 10,000. For medicinal products that have
received orphan status on or after January 1, 2021, a period of 10 years orphan market exclusivity is awarded from the date
of MA by the MHRA. An additional two years of exclusivity may be added where pediatric data requirements have been
met. Products with an orphan designation in the EU may be considered for a Great Britain orphan marketing authorization.
However, where centrally authorized MAs that have been converted into Great Britain MAs have an existing EU orphan
designation, these shall continue in effect with the remaining period of orphan market exclusivity.

UK Specials Regulation

The UK’s Human Medicines Regulations 2012 allow for the manufacture and supply of medicinal products not 

authorized for marketing to patients with special needs at the request of the healthcare professional responsible for the 
patient’s care (these products are referred to as “specials”).  A special may only be supplied: (i) in response to an 
unsolicited order from a healthcare professional responsible for the care of the patient, (ii) if the product is manufactured 
and assembled in accordance with the specifications of that healthcare professional to fulfil the special needs of the 
individual patient which cannot be met by products already authorized for marketing, and (iii) if the product is 
manufactured under a specials license granted by the UK’s MHRA.

Manufacturing a special also imposes a five year record retention requirement subject to review by the MHRA,

including details of any suspected adverse reaction to the product so sold or supplied of which the person is aware or
subsequently becomes aware, as well as a continuing obligation to notify the MHRA of any suspected adverse reaction to
the medicinal product which is a serious adverse reaction.

45

Table of Contents

Privacy and Data Protection Laws

We are also subject to laws and regulations in non-U.S. countries in which we are established or in which we run 

clinical trials, as well as countries in which we may sell, market and distribute products for which we obtain marketing 
approval. These laws and regulations cover data privacy and the protection of health-related and other personal data.  Laws 
and regulations in the EU and other jurisdictions apply broadly to the collection, use, storage, disclosure, processing and 
security of personal data, and have generally become more stringent over time.

For example, the General Data Protection Regulation, or GDPR, imposes strict requirements for processing the 

personal data of individuals within the EEA.  The GDPR allows EU member states to make additional laws and regulations 
further regulating the processing of genetic, biometric or health data.  Failure to comply with the requirements of GDPR 
and the applicable national data protection laws of the EU member states may result in fines of up to €20 million or up to 
4% of the total worldwide annual turnover of the preceding financial year, whichever is higher, and other administrative 
penalties and may expose us to compensation claims from affected individuals.

Further, from January 1, 2021, we are subject to the GDPR and also the UK GDPR, which, together with the

amended UK Data Protection Act 2018, retains the GDPR in UK national law. The UK GDPR mirrors the fines under the
GDPR, e.g. fines up to the greater of £17.5 million or 4% of the total worldwide annual turnover of the preceding financial
year. The European Commission has adopted an adequacy decision in favor of the UK, enabling data transfers from EU
member states to the UK without additional safeguards. However, the UK adequacy decision will automatically expire in
June 2025 unless the European Commission re-assesses and renews/extends that decision, and it continues to remain under
review by the Commission during this period.

Employees

As of December 31, 2021, we had 296 employees, 287 of which are full-time employees. None of our employees 
is subject to a collective bargaining agreement or represented by a trade or labor union.  We consider our relationship with 
our employees to be good. 

Our human capital resources objectives include, as applicable, identifying, recruiting, retaining, incentivizing and
integrating our existing and new employees, advisors and consultants. The principal purposes of our equity incentive plans
are to attract, retain and reward personnel through the granting of equity-based compensation awards in order to increase
shareholder value and the success of our company by motivating such individuals to perform to the best of their abilities
and achieve our objectives.

Corporate Information

MeiraGTx Holdings plc was formed on May 1, 2018 under the laws of the Cayman Islands. Our predecessor, 

MeiraGTx Limited, a limited company under the laws of England and Wales, was formed on March 20, 2015.  In 
connection with our initial public offering (“IPO”), we reorganized whereby MeiraGTx Limited became a wholly owned 
subsidiary of MeiraGTx Holdings plc.

Available Information

Our website can be found at http://www.meiragtx.com. From time to time, we may use our website as a channel of

distribution of material company information. Financial and other material information is routinely posted and accessible
under the Investors and Media section of our website at http://www.meiragtx.com.

We file annual, quarterly and current reports, proxy statements and other information with the U.S. Securities and

Exchange Commission (“SEC”). Our SEC filings are available to the public over the Internet at the SEC’s website at
http://www.sec.gov. Our SEC filings are also available without charge under the Investors and Media section of our

46

Table of Contents

website at http://www.meiragtx.com. We make this information available on our website as soon as reasonably practicable
after we electronically file such information with, or furnish it to, the SEC. Our website and the information contained on
or connected to that site are not incorporated into this Form 10-K.

ITEM 1A.

RISK FACTORS

Investing in our ordinary shares involves a high degree of risk. You should consider carefully the risks described below,
together with the other information included or incorporated by reference in this Form 10-K. If any of the following risks
occur, our business, financial condition, results of operations and future growth prospects could be materially and
adversely affected. In these circumstances, the market price of our ordinary shares could decline. Other events that we do
not currently anticipate or that we currently deem immaterial may also affect our business, prospects, financial condition
and results of operations, particularly in light of the fast-changing nature of the COVID-19 pandemic, containment
measures, vaccine distribution, vaccination rates, new variants and the related impacts to economic and operating
conditions.

Risks Related to Our Financial Position and Need for Additional Capital

We have incurred significant losses since inception and anticipate that we will incur continued losses for the foreseeable
future, and may never achieve or maintain profitability.

We are a clinical stage company with limited operating history. We were formed and began operations in 2015.
We  have  never  been  profitable  and  do  not  expect  to  be  profitable  in  the  foreseeable  future.  We  have  incurred  net  losses
since  inception,  including  net  losses  of  approximately  $79.6  million  and  $58.0  million  for  the  twelve  months  ended
December  31,  2021  and  2020,  respectively.  As  of  December  31,  2021,  we  had  an  accumulated  deficit  of  approximately
$340.6  million.  Since  our  inception,  we  have  devoted  substantially  all  of  our  resources  to  developing  our  technology
platform,  establishing  our  viral  vector  manufacturing  facilities  and  plasmid  and  DNA  production  facility,  developing
manufacturing  processes,  advancing  the  product  candidates  in  our  ophthalmology,  salivary  gland  and  neurodegenerative
disease programs, research and development activities, building our intellectual property portfolio, organizing and staffing
our  company,  developing  our  business  plans,  raising  capital,  and  providing  general  and  administrative  support  for  these
operations.  We  have  not  yet  demonstrated  an  ability  to  successfully  complete  large-scale,  pivotal  clinical  trials,  obtain
marketing  approval,  manufacture  product  at  a  commercial  scale,  or  arrange  for  a  third  party  to  do  so  on  our  behalf,  or
conduct  sales  and  marketing  activities  necessary  for  successful  product  commercialization.  Given  the  length  of  time
typically needed to develop a new drug from the time it enters Phase 1 clinical trials to when it is approved for treating
patients,  predictions  about  our  future  success  or  viability  may  not  be  as  accurate  as  they  could  be  if  we  had  a  longer
operating history or a history of successfully developing and commercializing genetic medicine products.

We expect to continue to incur significant expenses and additional operating losses for the foreseeable future as
we  seek  to  advance  product  candidates  through  preclinical  and  clinical  development,  expand  our  research,  development
and  manufacturing  activities,  develop  new  product  candidates,  build  and  expand  our  intellectual  product  portfolio,
complete  clinical  trials,  seek  regulatory  approval  and,  if  we  receive  regulatory  approval,  commercialize  our  products.
Furthermore, the costs of advancing product candidates into each succeeding clinical phase tend to increase substantially
over time, including the ongoing Phase 3 Lumeos clinical trial of botaretigene sparoparvovec for the treatment of patients
with XLRP and the initiation of a Phase 3 clinical trial of AAV-RPE65 for the treatment of retinal dystrophy associated
with  mutations  in  the  RPE65  gene,  although  we  believe  that  certain  of  these  increases  will  be  partially  offset  by  the
research funding in connection with the Collaboration Agreement. The total costs to advance any of our product candidates
to marketing approval in even a single jurisdiction would be substantial. Because of the numerous risks and uncertainties
associated with gene therapy product development, we are unable to accurately predict the timing or amount of increased
expenses  or  whether  we  will  be  able  to  begin  generating  revenue  from  the  commercialization  of  products  or  achieve  or
maintain  profitability.  Our  expenses  have  and  will  continue  to  increase  substantially  as  a  public  company  and  as  we
continue to add clinical, scientific, operational, financial, manufacturing, compliance and management information

47

Table of Contents

systems  and  personnel,  including  personnel  to  support  our  product  development,  manufacturing  and  planned  future
commercialization efforts.

Before  we  generate  any  revenue  from  product  sales,  each  of  our  programs  and  product  candidates  will  require
additional  preclinical  and/or  clinical  development,  potential  regulatory  approval  in  multiple  jurisdictions,  manufacturing,
building  of  a  commercial  organization,  substantial  investment  and  significant  marketing  efforts.  Our  expenses  could
increase  beyond  expectations  if  we  are  required  by  the  FDA,  MHRA,  EMA,  or  other  regulatory  authorities  to  perform
preclinical  studies  and  clinical  trials  in  addition  to  those  that  we  currently  anticipate.  These  risks  are  further  described
under “—Risks Related to Discovery, Development, Clinical Testing, Manufacturing and Regulatory Approval” and “—
Risks  Related  to  Commercialization.”  As  a  result,  we  expect  to  continue  to  incur  net  losses  for  the  foreseeable  future.
These net losses have had, and will continue to have, an adverse effect on our shareholders’ equity and working capital.

As  we  continue  to  build  our  business,  we  expect  our  financial  condition  and  operating  results  may  fluctuate
significantly from quarter to quarter and year to year due to a variety of factors, many of which are beyond our control.
Accordingly,  you  should  not  rely  upon  the  results  of  any  particular  quarterly  or  annual  period  as  indications  of  future
operating performance. If we are unable to develop and commercialize one or more of our product candidates either alone
or with collaborators, or if revenues from any product candidate that receives marketing approval are insufficient, we will
not achieve profitability. Even if we do achieve profitability, we may not be able to sustain or increase profitability. If we
are unable to achieve and then maintain profitability, the value of our equity securities will be adversely affected.

We will require additional capital to fund our operations, which may not be available on acceptable terms, if at all.

We  expect  to  spend  substantial  amounts  to  complete  the  development  of,  seek  regulatory  approvals  for  and
commercialize our product candidates, as well as continue to expand our manufacturing and supply chain capabilities. This
will require additional capital, which we may raise through equity offerings, debt financings, marketing and distribution
arrangements and other collaborations, strategic alliances and licensing arrangements or other sources. Our ability to raise
additional capital when needed may be adversely affected by external factors beyond our control, including changes in the
political  climate,  geopolitical  actions,  changes  in  market  interest  rates,  potential  reforms  and  changes  to  government
regulations, the effect of healthcare reform legislation, including those that may limit pricing of pharmaceutical products
and  drugs,  market  prices  and  conditions,  prospects  for  favorable  or  unfavorable  clinical  trial  results,  new  product
initiatives,  the  manufacturing  and  distribution  of  new  products,  product  safety  and  efficacy  issues,  new  collaborations,
strategic  alliances  and  licensing  arrangements,  and  the  COVID-19  outbreak  and  mitigation  measures.  Furthermore,  we
expect to continue to incur costs associated with operating as a public company. Adequate additional financing may not be
available to us on acceptable terms, or at all. Our failure to raise capital as and when needed would have a negative effect
on  our  financial  condition  and  our  ability  to  pursue  our  business  strategy.  In  addition,  attempting  to  secure  additional
financing may divert the time and attention of our management from day-to-day activities and harm our product candidate
development efforts. If we are unable to raise capital when needed or on acceptable terms, we would be forced to delay,
reduce or eliminate certain of our research and development programs.

Our operations have consumed significant amounts of cash since inception. As of December 31, 2021, our cash
and cash equivalents were $137.7 million. In addition, we expect to receive $22.4 million in receivables which we expect
to collect in the first quarter of 2022 from Janssen in connection with the Collaboration Agreement. Based on our cash and
cash equivalents at December 31, 2021 and the research funding and milestone payments we expect to receive under the
Collaboration Agreement, we estimate that such funds will be sufficient to enable us to fund our operating expenses and
capital expenditure requirements through the second quarter of 2023. This estimate is based on assumptions that may prove
to be wrong, and we could use our available capital resources sooner than we currently expect. Changing circumstances
could cause us to spend more than expected or consume capital significantly faster than we currently anticipate, such as
inflation  or  other  factors  that  may  significantly  increase  our  business  costs.  Because  the  length  of  time  and  activities
associated with successful development of our product candidates is uncertain, we are unable to estimate the actual funds
we  will  require  for  development  and  any  approved  marketing  and  commercialization  activities.  Our  future  funding
requirements, both near and long-term, will depend on many factors, including, but not limited to:

48

Table of Contents

● the  progress,  timing,  costs  and  results  of  our  ongoing  clinical  development  for  our  X-linked  retinitis
pigmentosa  product  candidate,  botaretigene  sparoparvovec,  including  the  ongoing  Phase  3  Lumeos
clinical  trial  of  botaretigene  sparoparvovec  for  the  treatment  of  patients  with  XLRP,  for  our  CNGB3
achromatopsia  gene  therapy  product  candidate,  AAV-CNGB3,  for  our  CNGA3  achromatopsia  gene
therapy product candidate, AAV-CNGA3, for our RPE65-associated retinal dystrophy product candidate,
AAV-RPE65,  including  the  initiation  of  a  Phase  3  clinical  trial  of  AAV-RPE65  for  the  treatment  of
retinal  dystrophy  associated  with  mutations  in  the  RPE65  gene,  for  our  radiation  induced  xerostomia
product  candidate,  AAV-hAQP1,  and  to  continue  to  conduct  our  ongoing  natural  history  studies  for
inherited retinal diseases, or IRDs;

● the progress, timing, costs and results of our clinical development program for our product candidate for

the treatment of Parkinson’s disease, AAV-GAD;

● the  development  of  our  product  candidate  for  the  treatment  of  ALS,  AAV-UPF1,  for  our  product
candidate  for  the  treatment  of  xerostomia  associated  with  Sjogren’s  syndrome,  AAV-hAQP1,  and  our
product candidate for the treatment of neovascular age related macular degeneration, or wet AMD;

● the  development  of  potentially  transformative  gene  regulation  technology  designed  to  precisely  and
specifically  control  gene  therapy  expression  levels  via  dose-response  to  orally  delivered  small
molecules;

● continuing  our  current  research  programs  and  our  preclinical  development  of  product  candidates  from

our current research programs;

● seeking to identify, assess, acquire and/or develop additional research programs and additional product

candidates;

● the preclinical testing and clinical trials for any product candidates we identify and develop;

● the outcome, timing and cost of meeting regulatory requirements established by the FDA, MHRA, EMA

and other regulatory authorities;

● the  cost  of  expanding  and  protecting  our  intellectual  property  portfolio,  including  filing,  prosecuting,

defending and enforcing our patent claims and other intellectual property rights;

● the  cost  of  defending  potential  intellectual  property  disputes,  including  patent  infringement  actions

brought by third parties against us or any of our product candidates;

● the effect of competing technological and market developments;

● the cost of further developing and scaling our manufacturing facilities and processes;

● the cost and timing of completion of commercial-scale manufacturing facilities and activities;

● the  cost  of  making  royalty,  milestone  or  other  payments  under  current  and  any  future  in-license

agreements;

● our  ability  to  establish  and  maintain  strategic  collaborations,  licensing  or  other  agreements  and  the

financial terms of such agreements;

49

Table of Contents

● the  extent  to  which  we  in-license  or  acquire  rights  to  other  products,  product  candidates  and

technologies;

● the  cost  of  establishing  sales,  marketing  and  distribution  capabilities  for  our  product  candidates  in

regions where we choose to commercialize our products; and

● the  initiation,  progress,  timing  and  results  of  our  commercialization  of  our  product  candidates,  if

approved for commercial sale.

Raising  additional  capital  through  the  sale  of  equity  or  convertible  debt  securities  will  dilute  your  ownership
interest, and the terms of these securities may include liquidation or other preferences that adversely affect your rights as a
shareholder.  Debt  financing  and  preferred  equity  financing,  if  available,  may  involve  agreements  that  include  covenants
limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or
declaring  dividends.  If  we  raise  additional  funds  through  collaborations,  strategic  alliances  or  marketing,  distribution  or
licensing  arrangements  with  third  parties,  we  may  be  required  to  relinquish  valuable  rights  to  our  technologies,  future
revenue streams or product candidates or grant licenses on terms that may not be favorable to us. If we are unable to raise
additional funds through equity or debt financings 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 product candidates that
we would otherwise prefer to develop and market ourselves.

We are heavily dependent on the success of our Most Advanced Product Candidates, which are still in development, and
if none of them receive regulatory approval or are successfully commercialized, our business may be harmed.

Our future success and ability to generate product revenue is substantially dependent on our ability to successfully
develop,  obtain  regulatory  approval  for  and  successfully  commercialize  our  product  candidates.  We  currently  have  no
products that are approved for commercial sale and may never be able to develop marketable products. We have invested
and  expect  to  continue  to  invest  a  meaningful  portion  of  our  efforts  and  expenditures  over  the  next  few  years  in  the
development of botaretigene sparoparvovec, AAV-GAD, AAV-CNGB3, AAV-CNGA3, AAV-RPE65 and AAV-hAQP1 (the
“Most  Advanced  Product  Candidates”),  which  will  require  additional  clinical  development,  management  of  clinical  and
manufacturing  activities,  regulatory  approval  in  multiple  jurisdictions,  manufacturing  sufficient  supply,  building  of  a
commercial  organization,  substantial  investment  and  significant  marketing  efforts  before  we  can  generate  any  revenues
from  any  commercial  sales.  While  we  have  entered  into  a  Collaboration  Agreement  with  Janssen  with  respect  to  AAV-
CNGB3,  AAV-CNGA3  and  botaretigene  sparoparvovec,  pursuant  to  which  we  received  a  $100  million  upfront  payment
and  will  also  receive  funding  for  certain  research,  manufacturing,  clinical  development  and  commercialization  costs,
potential  additional  milestone  payments  upon  the  achievement  of  such  milestones  and  royalties  on  future  net  sales  of
products, there can be no assurance that these three product candidates will be successfully developed and commercialized
by us and Janssen. We cannot be certain that our Most Advanced Product Candidates will be successful in clinical trials,
receive regulatory approval or be successfully commercialized even if we receive regulatory approval. Even if we receive
approval to market our Most Advanced Product Candidates from the FDA, MHRA or other regulatory bodies, we cannot
be certain that our product candidates will be successfully commercialized by us or our collaborators, widely accepted in
the  marketplace  or  more  effective  than  other  commercially  available  alternatives.  Additionally,  the  research,  testing,
manufacturing, labeling, approval, sale, marketing and distribution of gene therapy products are and will remain subject to
extensive and evolving regulation by the FDA, MHRA and other regulatory authorities. We are not permitted to market our
Most Advanced Product Candidates in the United States until they receive approval of a biologics license application, or
BLA, from the FDA, we cannot market them in the UK or EU until we receive approval for an MA from the MHRA or
European  Commission,  respectively,  and  we  cannot  market  them  in  other  countries  until  we  receive  any  other  required
regulatory approval in those countries.

Because  some  of  our  other  product  candidates  are  based  on  similar  technology  as  our  Most  Advanced  Product
Candidates, if any of our product candidates show unexpected adverse events or a lack of efficacy in the indications we
intend to treat, or if we experience other regulatory or developmental issues, our development plans and business could be

50

Table of Contents

significantly  harmed.  Further,  competitors  may  be  developing  products  with  similar  technology  and  may  experience
problems with their products that could identify problems that would potentially harm our business.

We may not be successful in our efforts to identify additional product candidates.

Part  of  our  strategy  involves  identifying  novel  product  candidates.  The  process  by  which  we  identify  product
candidates may fail to yield product candidates for clinical development for a number of reasons, including those discussed
in these risk factors and also:

● we may not be able to assemble sufficient resources to acquire or discover additional product candidates;

● competitors  may  develop  alternatives  that  render  our  potential  product  candidates  obsolete  or  less

attractive;

● potential product candidates we develop may nevertheless be covered by third parties’ patents or other

exclusive rights;

● potential product candidates may, on further study, be shown to have harmful side effects, toxicities or
other  characteristics  that  indicate  that  they  are  unlikely  to  be  products  that  will  receive  marketing
approval and achieve market acceptance;

● potential product candidates may not be effective in treating their targeted diseases;

● the  market  for  a  potential  product  candidate  may  change  so  that  the  continued  development  of  that

product candidate is no longer reasonable;

● a  potential  product  candidate  may  not  be  capable  of  being  produced  in  commercial  quantities  at  an

acceptable cost, or at all; or

● the regulatory pathway for a potential product candidate may be too complex and difficult to navigate

successfully or economically.

In  addition,  we  may  choose  to  focus  our  efforts  and  resources  on  a  potential  product  candidate  that  ultimately
proves  to  be  unsuccessful.  As  a  result,  we  may  fail  to  capitalize  on  viable  commercial  products  or  profitable  market
opportunities, be required to forego or delay pursuit of opportunities with other product candidates or other diseases that
may  later  prove  to  have  greater  commercial  potential,  or  relinquish  valuable  rights  to  such  product  candidates  through
collaboration, licensing or other royalty arrangements in cases in which it would have been advantageous for us to retain
sole  development  and  commercialization  rights.  If  we  are  unable  to  identify  additional  suitable  product  candidates  for
clinical  development,  this  would  adversely  impact  our  business  strategy  and  our  financial  position  and  share  price  and
could potentially cause us to cease operations.

Risks Related to Discovery, Development, Clinical Testing, Manufacturing and Regulatory Approval

The outbreak of the novel coronavirus disease, COVID-19, or other pandemic, epidemic or outbreak of an infectious
disease  may  materially  and  adversely  impact  our  business,  including  our  preclinical  studies,  clinical  trials,
manufacturing capabilities and regulatory approvals.

The COVID-19 pandemic and government measures taken in response have had a significant impact, both direct
and indirect, on businesses and commerce globally, as worker shortages have occurred; supply chains have been disrupted;

51

Table of Contents

facilities and production have been suspended; and demand for certain goods and services, such as medical services and
supplies, has spiked, while demand for other goods and services, such as travel, has fallen.

As a result of the COVID-19 pandemic, we have at times restricted onsite activities, and may continue to restrict
onsite activities, to manufacturing functions, laboratory research and certain support activities. We have also experienced
some delays in enrolling, treating and monitoring patients in our clinical trials, as well as limited supply chain disruptions.
We  may  experience  other  disruptions  from  the  COVID-19  pandemic  or  other  pandemic,  epidemic  or  outbreak  of  an
infectious  disease  that  could  severely  impact  our  business,  preclinical  studies,  clinical  trials  and  laboratory  and
manufacturing activities, including:

● delays or difficulties in enrolling patients in our clinical trials;

● delays  or  difficulties  in  clinical  site  initiation,  including  difficulties  in  recruiting  clinical  site

investigators and clinical site staff;

● diversion  of  healthcare  resources  away  from  the  conduct  of  clinical  trials,  including  the  diversion  of

hospitals serving as our clinical trial sites and hospital staff supporting the conduct of our clinical trials;

● interruption of key clinical trial activities, such as clinical trial site data monitoring, due to limitations on
travel imposed or recommended by federal, state, local or foreign governments, employers and others, or
interruption  of  clinical  trial  subject  visits  and  study  procedures,  which  may  impact  the  integrity  of
subject data and clinical study endpoints;

● interruption or delays in the operations of the FDA, MHRA, EMA or other regulatory authorities, which

may impact review and approval timelines;

● interruption  of,  or  delays  in,  the  manufacturing  of  our  product  candidates  due  to  staffing  shortages,
governmental  restrictions  relating  to  on-site  activities,  production  slowdowns  or  stoppages  and  supply
chain disruptions;

● slowdowns  or  problems  with  the  development  and  startup  of  our  new  manufacturing  facilities  in

Shannon, Ireland;

● interruptions in preclinical studies due to restricted or limited operations at our laboratory facilities;

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

● interruption or delays to our sourced discovery and clinical activities.

The COVID-19 pandemic continues to impact businesses globally and new and more contagious variations of the
virus  have  emerged  or  may  emerge  in  the  future.  The  extent  to  which  the  outbreak  may  further  impact  our  business,
preclinical studies, clinical trials and laboratory and manufacturing activities will depend on future developments, which
are highly uncertain and cannot be predicted with confidence, such as the duration of the pandemic, the timing, distribution
and  effectiveness  of  vaccines,  vaccination  rates,  travel  restrictions  and  physical  distancing  requirements  in  the  countries
where  we  do  business,  business  closures  or  business  disruptions,  and  the  effectiveness  of  actions  taken  in  the  countries
where  we  do  business  to  contain  and  treat  the  disease,  respond  to  the  reduction  in  global  economic  activity  and  resume
normal economic and operating conditions. If we or any of the third parties with whom we engage experience prolonged
shutdowns or other business disruptions, our ability to conduct our business in the manner and on the timelines presently

52

Table of Contents

planned could be materially and negatively impacted. The pandemic and public and private responses to the pandemic may
continue to affect economic conditions and may lead to an economic downturn, significant inflation and/or a recession, at a
global scale, which could materially affect our performance, financial condition, results of operations, and cash flows, as
well as our ability to raise additional capital.

In  addition,  we  expect  the  COVID-19  pandemic  will  continue  to  affect  our  employees,  our  vendors  and  their
employees  or  the  employees  of  companies  with  which  we  do  business,  which  may  ultimately  disrupt  our  business
operations. We have and will continue to adhere to applicable guidelines and safety measures including work-from-home
policies  and  restricting  onsite  activities  to  manufacturing  functions,  laboratory  research  and  certain  support  activities  as
necessary.  Employees  who  are  working  in  our  offices  are  required  to  quarantine  if  they  are  diagnosed  with,  show
symptoms of, or are exposed to someone with, the coronavirus. We may also have to reinstitute a broader work-from-home
policy  for  an  undetermined  amount  of  time  if  COVID-19  cases  increase  in  the  jurisdictions  where  we  have  offices.  An
extended  period  of  remote  working,  whether  by  our  employees,  our  vendors  and  their  employees  or  the  employees  of
companies with which we do business may negatively impact productivity, or disrupt, delay, or otherwise adversely impact
our business. In addition, this could increase our cyber security risk due to increases in malware campaigns and phishing
attacks  exploiting  remote  workers  and  preying  on  the  uncertainties  surrounding  COVID-19,  create  data  accessibility
concerns, and make us more susceptible to communication disruptions, any of which could adversely impact our business
operations or delay necessary interactions with regulators, laboratory and manufacturing sites, research or clinical trial sites
and other important agencies and contractors.

It is difficult to predict the time and cost of product candidate development on our novel gene therapy platform. Very few
gene therapies have been approved in the United States or in Europe.

We have concentrated a portion of our research and development efforts on our gene therapy platform, which uses
both transduction and gene control technology. Our future success depends on the successful development of these novel
therapeutic approaches. To date, very few products that utilize gene transfer have been approved in the United States or
Europe.

Our gene therapy platform is based on a suite of viral vectors which we can deploy with gene therapy constructs,
which relies on the ability of AAV to efficiently transmit a therapeutic gene to certain kinds of cells. The mechanism of
action by which these vectors target particular tissues is still not completely understood. Therefore, it is difficult for us to
determine  that  our  vectors  will  be  able  to  properly  deliver  gene  transfer  constructs  to  enough  tissue  cells  to  reach
therapeutic levels. We cannot be certain that animal models will exist for some of the diseases we expect to pursue, that our
viral vectors will be able to meet safety and efficacy levels needed to be therapeutic in humans or that they will not cause
significant adverse events or toxicities. Furthermore, prior work conducted by a third party in non-human primates suggests
that intravenous, or IV, delivery of certain AAV vectors at very high doses may result in severe toxicity. The indications
that we target do not use IV administration for viral vector delivery and do not use doses as high as those tested in these
publications,  and  to  date  we  have  not  observed  the  severe  toxicities  described  in  these  publications  with  the  naturally
occurring AAV vectors that we use. However, we cannot be certain that we will be able to avoid triggering toxicities in our
future preclinical studies or clinical trials. Any such results could impact our ability to develop a product candidate. As a
result  of  these  factors,  it  is  more  difficult  for  us  to  predict  the  time  and  cost  of  product  candidate  development,  and  we
cannot predict whether the application of our gene therapy platform, or any similar or competitive gene therapy platforms,
will result in the identification, development, and regulatory approval of any product candidates, or that other gene therapy
technologies will not be considered better or more attractive. There can be no assurance that any development problems we
experience  in  the  future  related  to  our  gene  therapy  platform  or  any  of  our  research  programs  will  not  cause  significant
delays or unanticipated costs, or that such development problems can be solved. Any of these factors may prevent us from
completing our preclinical studies or clinical trials or commercializing any product candidates we may develop on a timely
or profitable basis, if at all.

In  addition,  because  our  gene  regulation  technology  is  still  in  the  research  stage,  we  have  not  yet  been  able  to

assess safety in humans, and there may be long-term effects from treatment that we cannot predict at this time.

53

Table of Contents

Because gene therapy is novel and the regulatory landscape that governs any product candidates we may develop is
uncertain and may change, we cannot predict the time and cost of obtaining regulatory approval, if we receive it at all,
for any product candidates we may develop.

The  regulatory  requirements  that  will  govern  any  novel  gene  therapy  product  candidates  we  develop  are  not
entirely  clear  and  may  change.  Within  the  broader  genetic  medicine  field,  very  few  therapeutic  products  have  received
marketing authorization from the FDA, MHRA and European Commission. Even with respect to more established products
that  fit  into  the  categories  of  gene  therapies  or  cell  therapies,  the  regulatory  landscape  is  still  developing.  Regulatory
requirements governing gene therapy products and cell therapy products have changed frequently and will likely continue
to  change  in  the  future.  Moreover,  there  is  substantial,  and  sometimes  uncoordinated,  overlap  in  those  responsible  for
regulation  of  existing  gene  therapy  products  and  cell  therapy  products,  which  could  impact  the  timing  and  cost  of  any
regulatory  approval.  For  example,  in  the  United  States,  the  FDA  has  established  the  Office  of  Tissues  and  Advanced
Therapies within its Center for Biologics Evaluation and Research, or CBER, to consolidate the review of gene therapy and
related products, and the Cellular, Tissue and Gene Therapies Advisory Committee to advise CBER on its review. Gene
therapy clinical trials are also subject to review and oversight by an institutional biosafety committee, or IBC, and/or an
institutional review board, or IRB, which are local institutional committees or boards, as applicable, that review, approve
and oversee basic and clinical research conducted at the institution participating in the clinical trial.

In the EU, the EMA’s Committee for Advanced Therapies, or CAT, is responsible for assessing the quality, safety,
and  efficacy  of  ATMPs.  ATMPs  include  gene  therapy  medicines,  somatic-cell  therapy  medicines  and  tissue-engineered
medicines.  The  role  of  the  CAT  is  to  prepare  a  draft  opinion  on  an  application  for  marketing  authorization  for  a  gene
therapy medicinal candidate that is submitted to the EMA. In the EU, the development and evaluation of a gene therapy
product must be considered in the context of the relevant EU guidelines. The EMA may issue new guidelines concerning
the  development  and  marketing  authorization  for  gene  therapy  products  and  require  that  we  comply  with  these  new
guidelines. As a result, the procedures and standards applied to gene therapy products and cell therapy products may be
applied to any gene therapy product candidate we may develop, but that remains uncertain at this point.

Post  Brexit,  MAAs  for  ATMPs  in  Great  Britain  are  regulated  nationally  and  assessed  in  accordance  with  the
general provisions in place for the licensing of medicines, taking the specific requirements for this group of medicines into
account.  In  Northern  Ireland,  ATMPs  will  continue  to  be  authorized  according  to  the  EU’s  centralized  procedure.
Definitions for individual classes of ATMPs remain unchanged and classification of ATMPs are undertaken by the MHRA
in  accordance  with  EU  legislation  and  current  guidance  from  CAT.  Data,  traceability,  exemptions  from  licensing,
packaging and post-authorization requirements remain in line with EU requirements transposed into UK law. However, if
the  EMA  issues  new  guidance  on  ATMPs  going  forward,  there  is  a  risk  of  regulatory  divergence  with  the  MHRA  and
separate procedures and standards with which we may need to comply.

Adverse developments in preclinical studies or clinical trials conducted by others in the field of gene therapy and
gene regulation products may cause the FDA, MHRA and other regulatory bodies to revise the requirements for approval
of  any  product  candidates  we  may  develop  or  limit  the  use  of  products  utilizing  gene  regulation  technologies,  either  of
which  could  harm  our  business.  In  addition,  the  clinical  trial  requirements  of  the  FDA,  MHRA  and  other  regulatory
authorities  and  the  criteria  these  regulators  use  to  determine  the  safety  and  efficacy  of  a  product  candidate  vary
substantially  according  to  the  type,  complexity,  novelty,  and  intended  use  and  market  of  the  potential  products.  The
regulatory  approval  process  for  product  candidates  such  as  ours  can  be  more  expensive  and  take  longer  than  for  other,
better known, or more extensively studied pharmaceutical or other product candidates. Further, as we are developing novel
treatments  for  diseases  in  which  there  is  little  clinical  experience  with  new  endpoints  and  methodologies,  there  is
heightened  risk  that  the  FDA,  MHRA,  EMA  or  other  regulatory  bodies  may  not  consider  the  clinical  trial  endpoints  to
provide  clinically  meaningful  results,  and  the  resulting  clinical  data  and  results  may  be  more  difficult  to  analyze.  The
prospectively  designed  natural  history  studies  with  the  same  endpoints  as  our  corresponding  clinical  trials  may  not  be
accepted by the FDA, MHRA, EMA or other regulatory authorities. Regulatory agencies administering existing or future
regulations  or  legislation  may  not  allow  production  and  marketing  of  products  utilizing  gene  regulation  technology  in  a
timely manner or under

54

Table of Contents

technically or commercially feasible conditions. In addition, regulatory action or private litigation could result in expenses,
delays, or other impediments to our research programs or the commercialization of resulting products.

The regulatory review committees and advisory groups described above and the new guidelines they promulgate
may lengthen the regulatory review process, require us to perform additional preclinical studies or clinical trials, increase
our  development  costs,  lead  to  changes  in  regulatory  positions  and  interpretations,  delay  or  prevent  approval  and
commercialization  of  these  treatment  candidates,  or  lead  to  significant  post-approval  limitations  or  restrictions.  As  we
advance our research programs and develop future product candidates, we will be required to consult with these regulatory
and  advisory  groups  and  to  comply  with  applicable  guidelines.  If  we  fail  to  do  so,  we  may  be  required  to  delay  or
discontinue development of any product candidates we identify and develop.

Clinical trials are expensive, time-consuming, difficult to design and implement, and involve an uncertain outcome.
Further, we may encounter substantial delays in our clinical trials.

The clinical trials and manufacturing of our product candidates are, and the manufacturing and marketing of our
products, if approved, will be, subject to extensive and rigorous review and regulation by numerous government authorities
in the United States and in other countries where we intend to test and market our product candidates. Before obtaining
regulatory  approvals  for  the  commercial  sale  of  any  of  our  product  candidates,  we  must  demonstrate  through  lengthy,
complex and expensive preclinical testing and clinical trials that our product candidates are both safe and effective for use
in each target indication. In particular, because our product candidates are subject to regulation as biological drug products,
we will need to demonstrate that they are safe, pure, and potent for use in their target indications. Each product candidate
must demonstrate an adequate risk versus benefit profile in its intended patient population and for its intended use.

Clinical testing is expensive, can take many years to complete and is subject to uncertainty. We cannot guarantee
that any clinical trials will be conducted as planned or completed on schedule, if at all. Failure can occur at any time during
the clinical trial process. Even if our future clinical trials are completed as planned, we cannot be certain that their results
will support the safety and effectiveness of our product candidates for their targeted indications. Our future clinical trial
results may not be successful.

In  addition,  even  if  such  trials  are  successfully  completed,  we  cannot  guarantee  that  the  FDA,  MHRA,  EMA  or
other  regulatory  authorities  will  interpret  the  results  as  we  do,  and  more  trials  could  be  required  before  we  submit  our
product candidates for approval. To the extent that the results of the trials are not satisfactory to the FDA, MHRA, EMA or
other regulatory authorities for support of an MAA, we may be required to expend significant resources, which may not be
available to us, to conduct additional trials in support of potential approval of our product candidates.

To date, we have not completed any clinical development programs required for the approval of any of our product
candidates.  Although  we  are  currently  conducting  several  clinical  development  programs,  we  may  experience  delays  in
conducting any clinical trials and we do not know whether our ongoing and future clinical trials will begin on time, need to
be redesigned, be able to recruit and enroll patients on time or be completed on schedule, or at all. Events that may prevent
successful or timely completion of clinical development include:

● inability  to  generate  sufficient  preclinical,  toxicology,  or  other  in  vivo  or  in  vitro  data  to  support  the

initiation of clinical trials;

● delays  in  sufficiently  developing,  characterizing  or  controlling  a  manufacturing  process  suitable  for

advanced clinical trials;

● delays in developing suitable assays for screening patients for eligibility for trials with respect to certain

product candidates;

55

Table of Contents

● delays  in  reaching  agreement  with  the  FDA,  MHRA,  EMA  or  other  regulatory  authorities  as  to  the
design or implementation of our clinical trials and obtaining regulatory approval to commence a clinical
trial;

● inability  to  reach  an  agreement  on  acceptable  terms  with  clinical  trial  sites  or  prospective  contract
research  organizations,  or  CROs,  the  terms  of  which  can  be  subject  to  extensive  negotiation  and  may
vary significantly among different clinical trial sites;

● our  inability  to  recruit  and  train  clinical  trial  investigators  with  the  appropriate  competencies  and
experience  to  conduct  the  clinical  trials,  administer  our  product  candidates  and  oversee  clinical  trial
staff;

● delays in obtaining IRB or ethics committee approval at each site;

● inability to recruit suitable patients to participate in a clinical trial;

● inability to develop and validate the companion diagnostic to be used in a clinical trial, if applicable;

● delays  in  sufficiently  developing,  designing  and  manufacturing  equipment  or  medical  devices  used  in

our clinical trials;

● patients not completing a clinical trial or returning for post-treatment follow-up;

● clinical sites, CROs, or other third parties deviating from trial protocol or dropping out of a trial;

● failure  to  perform  in  accordance  with  the  FDA’s  good  clinical  practice,  or  GCP,  requirements,  or

applicable regulatory guidelines in other countries;

● addressing patient safety concerns that arise during the course of a trial, including occurrence of adverse

events associated with the product candidate that are viewed to outweigh its potential benefits;

● having an insufficient number of clinical trial sites; or

● inability to manufacture sufficient quantities of our product candidates for use in clinical trials.

We may experience numerous unforeseen events during, or as a result of, clinical trials that could delay or prevent
our ability to receive marketing approval or commercialize our product candidates or significantly increase the cost of such
trials, including:

● we may experience changes in regulatory requirements or guidance, or receive feedback from regulatory

authorities that requires us to modify the design of our clinical trials;

● clinical  trials  of  our  product  candidates  may  produce  negative  or  inconclusive  results,  and  we  may
decide,  or  regulators  may  require  us,  to  conduct  additional  clinical  trials  or  abandon  development
programs;

● the  number  of  patients  required  for  clinical  trials  of  our  product  candidates  may  be  larger  than  we
anticipate, enrollment in these clinical trials may be slower than we anticipate, or participants may drop
out of these clinical trials at a higher rate than we anticipate;

56

Table of Contents

● our  third-party  contractors  may  fail  to  comply  with  regulatory  requirements  or  meet  their  contractual

obligations to us in a timely manner, or at all;

● we or our investigators might have to suspend or terminate clinical trials of our product candidates for
various  reasons,  including  non-compliance  with  regulatory  requirements,  a  finding  that  our  product
candidates  have  undesirable  side  effects  or  other  unexpected  characteristics,  or  a  finding  that  the
participants are being exposed to unacceptable health risks;

● the cost of clinical trials of our product candidates may be greater than we anticipate, and we may not

have funds to cover the costs;

● the supply or quality of our product candidates or other materials necessary to conduct clinical trials of

our product candidates may be insufficient or inadequate;

● business interruptions resulting from geopolitical actions, including war and terrorism, or a widespread
health  emergency,  such  as  the  COVID-19  pandemic,  or  natural  disasters  including  earthquakes,
typhoons, floods and fires, or from economic or political instability; and

● any  future  collaborators  that  conduct  clinical  trials  may  face  any  of  the  above  issues,  and  they  may

conduct clinical trials in ways they view as advantageous to them but that are suboptimal for us.

If we are required to conduct additional clinical trials or other testing of our product candidates beyond those that
we  currently  contemplate,  if  we  are  unable  to  successfully  complete  clinical  trials  of  our  product  candidates  or  other
testing, if the results of these trials or tests are not positive or are only modestly positive or if there are safety concerns, we
may:

● incur unplanned costs;

● be delayed in obtaining marketing approval for our product candidates or not obtain marketing approval

at all;

● obtain marketing approval in some countries and not in others;

● obtain  marketing  approval  for  indications  or  patient  populations  that  are  not  as  broad  as  intended  or

desired;

● obtain marketing approval with labeling that includes significant use or distribution restrictions or safety

warnings, including boxed warnings;

● be subject to additional post-marketing testing requirements; or

● have the product removed from the market after obtaining marketing approval.

We could encounter delays if a clinical trial is suspended or terminated by us, by the IRBs of the institutions in
which  such  trials  are  being  conducted,  by  the  Data  Safety  Monitoring  Board,  or  DSMB,  for  such  trial  or  by  the  FDA,
MHRA,  EMA  or  other  regulatory  authorities.  Such  authorities  may  impose  such  a  suspension  or  termination  due  to  a
number of factors, including failure to conduct the clinical trial in accordance with regulatory requirements or our clinical
protocols, inspection of the clinical trial operations or trial site by the FDA, MHRA, EMA or other regulatory authorities
resulting  in  the  imposition  of  a  clinical  hold,  unforeseen  safety  issues  or  adverse  side  effects,  failure  to  demonstrate  a
benefit  from  using  a  drug,  changes  in  governmental  regulations  or  administrative  actions  or  lack  of  adequate  funding  to
continue the clinical trial.

57

Table of Contents

Our Most Advanced Product Candidates will require extensive clinical testing before we are prepared to submit a
BLA  or  MAA  for  regulatory  approval.  We  cannot  predict  with  any  certainty  if  or  when  we  might  complete  the  clinical
development  for  our  product  candidates  and  submit  a  BLA  or  MAA  for  regulatory  approval  of  any  of  our  product
candidates or whether any such BLA or MAA will be approved. We may also seek feedback from the FDA, MHRA, EMA
or  other  regulatory  authorities  on  our  clinical  development  program,  and  the  FDA,  MHRA,  EMA  or  such  regulatory
authorities may not provide such feedback on a timely basis, or such feedback may not be favorable, which could further
delay our development programs.

If we experience delays in the commencement or completion of our clinical trials, or if we terminate a clinical trial
prior  to  completion,  the  commercial  prospects  of  our  product  candidates  could  be  harmed,  and  our  ability  to  generate
revenues from our product candidates may be delayed. In addition, any delays in our clinical trials could increase our costs,
slow  down  the  development  and  approval  process  and  jeopardize  our  ability  to  commence  product  sales  and  generate
revenues. Any of these occurrences may harm our business, financial condition and results of operations. In addition, many
of the factors that cause, or lead to, a delay in the commencement or completion of clinical trials may also ultimately lead
to the denial of regulatory approval of our product candidates.

In  addition,  the  FDA’s  and  other  regulatory  authorities’  policies  with  respect  to  clinical  trials  may  change  and
additional government regulations may be enacted. For instance, the regulatory landscape related to clinical trials in the EU
recently evolved. The EU CTR adopted in April 2014 became applicable on January 31, 2022 and repeals the EU Clinical
Trials Directive. While the Clinical Trials Directive required a separate CTA to be submitted in each member state, to both
the competent national health authority and an independent ethics committee, the CTR introduces a centralized process and
only requires the submission of a single application to all member states concerned. The CTR allows sponsors to make a
single  submission  to  both  the  competent  authority  and  an  ethics  committee  in  each  member  state,  leading  to  a  single
decision  per  member  state.  The  assessment  procedure  of  the  CTA  has  been  harmonized  as  well,  including  a  joint
assessment  by  all  member  states  concerned,  and  a  separate  assessment  by  each  member  state  with  respect  to  specific
requirements  related  to  its  own  territory,  including  ethics  rules.  Each  member  state’s  decision  is  communicated  to  the
sponsor  via  the  centralized  EU  portal.  Once  the  CTA  is  approved,  clinical  study  development  may  proceed.  The  CTR
foresees a three-year transition period. The extent to which ongoing and new clinical trials will be governed by the CTR
varies. For clinical trials whose CTA was made under the Clinical Trials Directive before January 31, 2022, the Clinical
Trials  Directive  will  continue  to  apply  on  a  transitional  basis  for  three  years.  Additionally,  sponsors  may  still  choose  to
submit a CTA under either the Clinical Trials Directive or the CTR until January 31, 2023 and, if authorized, those will be
governed by the Clinical Trials Directive until January 31, 2025. By that date, all ongoing trials will become subject to the
provisions of the CTR. Compliance with the CTR requirements by us and our third-party service providers, such as CRO,
may impact our development plans.  

It  is  currently  unclear  to  what  extent  the  UK  will  seek  to  align  its  regulations  with  the  EU.  The  UK  regulatory
framework  in  relation  to  clinical  trials  is  derived  from  existing  EU  legislation  (as  implemented  into  UK  law,  through
secondary  legislation).  On  January  17,  2022,  the  MHRA  launched  an  eight-week  consultation  on  reframing  the  UK
legislation for clinical trials. The consultation closes on March 14, 2022 and aims to streamline clinical trials approvals,
enable innovation, enhance clinical trials transparency, enable greater risk proportionality, and promote patient and public
involvement in clinical trials. The outcome of the consultation will be closely watched and will determine whether the UK
chooses  to  align  with  the  regulation  or  diverge  from  it  to  maintain  regulatory  flexibility.  A  decision  by  the  UK  not  to
closely  align  its  regulations  with  the  new  approach  that  will  be  adopted  in  the  EU  may  have  an  effect  on  the  cost  of
conducting clinical trials in the UK as opposed to other countries and/or make it harder to seek an MA in the EU for our
product candidates on the basis of clinical trials conducted in the UK.

If  we  are  slow  or  unable  to  adapt  to  changes  in  existing  requirements  or  the  adoption  of  new  requirements  or

policies governing clinical trials, our development plans may also be impacted.

58

Table of Contents

The affected populations for our product candidates may be smaller than we or third parties currently project, which
may affect the addressable markets for our product candidates.

Our projections of the number of people who have the diseases we are seeking to treat, as well as the subset of
people  with  these  diseases  who  have  the  potential  to  benefit  from  treatment  with  our  product  candidates,  are  estimates
based  on  our  knowledge  and  understanding  of  these  diseases.  The  total  addressable  market  opportunity  for  our  product
candidates will ultimately depend upon a number of factors including the diagnosis and treatment criteria included in the
final label, if approved for sale in specified indications, acceptance by the medical community, patient access and product
pricing and reimbursement. Incidence and prevalence estimates are frequently based on information and assumptions that
are not exact and may not be appropriate, and the methodology is forward-looking and speculative. The process we have
used in developing an estimated incidence and prevalence range for the indications we are targeting has involved collating
limited  data  from  multiple  sources.  Accordingly,  the  incidence  and  prevalence  estimates  included,  or  supporting  the
information,  in  our  SEC  filings  and  other  materials  should  be  viewed  with  caution.  Further,  the  data  and  statistical
information  included,  or  supporting  the  information,  in  our  SEC  filings  and  other  materials,  including  estimates  derived
from them, may differ from information and estimates made by our competitors or from current or future studies conducted
by independent sources.

The  use  of  such  data  involves  risks  and  uncertainties  and  is  subject  to  change  based  on  various  factors.  Our
estimates may prove to be incorrect and new studies may change the estimated incidence or prevalence of the diseases we
seek  to  address.  The  number  of  patients  with  the  diseases  we  are  targeting  in  the  United  States,  the  UK,  the  EU  and
elsewhere may turn out to be lower than expected or may not be otherwise amenable to treatment with our products, or new
patients may become increasingly difficult to identify or access, all of which would harm our results of operations and our
business.

Negative public opinion of gene therapy and increased regulatory scrutiny of gene therapy and genetic research may
adversely impact public perception of our current and future product candidates.

Our  potential  therapeutic  products  involve  introducing  genetic  material  into  patients’  cells.  The  clinical  and
commercial success of our potential products will depend in part on public acceptance of the use of gene therapy and gene
regulation  for  the  prevention  or  treatment  of  human  diseases.  Public  attitudes  may  be  influenced  by  claims  that  gene
therapy and gene regulation are unsafe, unethical, or immoral, and, consequently, our products may not gain the acceptance
of  the  public  or  the  medical  community.  Public  attitudes  may  adversely  impact  our  ability  to  enroll  clinical  trials.
Moreover, our success will depend upon physicians prescribing, and their patients being willing to receive, treatments that
involve the use of product candidates we may develop in lieu of, or in addition to, existing treatments with which they are
already familiar and for which greater clinical data may be available.

More restrictive government regulations or negative public opinion would have a negative effect on our business or
financial condition and may delay or impair the development and commercialization of our product candidates or demand
for  any  products  once  approved.  For  example,  in  2003,  trials  using  early  versions  of  murine  gamma-retroviral  vectors,
which integrate with, and thereby alter, the host cell’s DNA, have led to several well-publicized adverse events, including
reported cases of leukemia. Although none of our current product candidates utilize murine gamma-retroviral vectors, our
product candidates use a viral delivery system. Adverse events in our clinical trials, even if not ultimately attributable to
our product candidates, and the resulting publicity could result in increased governmental regulation, unfavorable public
perception, potential regulatory delays in the testing or approval of our product candidates or the halting of clinical trials,
stricter labeling requirements for those product candidates that are approved and a decrease in demand for any such product
candidates. The risk of cancer remains a concern for gene therapy and we cannot assure that it will not occur in any of our
planned or future clinical trials. In addition, there is the potential risk of delayed adverse events following exposure to gene
therapy products due to persistent biological activity of the genetic material or other components of products used to carry
the genetic material. If any such adverse events occur, commercialization of our product candidates or further advancement
of our clinical trials could be halted or delayed, which would have a negative impact on our business and operations.

59

Table of Contents

We may fail to maintain the benefits of certain regulatory designations that we have obtained for our product
candidates, and may in the future seek and fail to obtain such designations for other of our current or potential future
product candidates. Even if such designations are obtained, they may not lead to faster development or regulatory
review or approval, and they do not increase the likelihood that our product candidates will receive marketing approval.

A sponsor may seek approval of its product candidate under programs designed to accelerate the FDA’s review and
approval  of  new  drugs  and  biological  products  that  meet  certain  criteria.  For  example,  the  FDA  has  a  Fast  Track
designation  program  that  is  intended  to  expedite  or  facilitate  the  process  for  reviewing  new  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 disease or condition and demonstrate the potential to address unmet medical needs. Fast Track
designation applies to the combination of the product and the specific indication for which it is being studied. For product
candidates with Fast Track designation, sponsors may be eligible for more frequent meetings with the FDA to discuss the
candidate’s development plan and more frequent written communication from the FDA about such things as the design of
the proposed clinical trials and use of biomarkers.  In addition, the FDA may consider for review sections of the BLA on a
rolling  basis  before  the  complete  application  is  submitted  if  relevant  criteria  are  satisfied,  including  an  agreement  with
FDA on the proposed schedule for the submission of portions of the BLA, and the payment of applicable user fees before
FDA may initiate a review. Even if Fast Track designation is granted, it may be rescinded if the product no longer meets
the qualifying criteria. In April 2018, botaretigene sparoparvovec was issued Fast Track designation by the FDA for the
treatment of X-linked retinitis pigmentosa owing to defects in RPGR. In August 2018, AAV-CNGB3 was issued Fast Track
designation by the FDA for the treatment of achromatopsia caused by CNGB3 mutations. In January 2021, AAV-CNGA3
was issued Fast Track designation by the FDA for the treatment of achromatopsia caused by CNGA3 mutations.

Similarly,  the  EMA  has  established  the  PRIME  scheme  to  expedite  the  development  and  review  of  product
candidates that show a potential to address to a significant extent an unmet medical need, based on early clinical data. In
February  2018,  AAV-CNGB3  in  the  treatment  of  achromatopsia  associated  with  defects  in  CNGB3  was  admitted  to  the
PRIME  scheme  of  the  EMA.  In  February  2020,  botaretigene  sparoparvovec  for  the  treatment  of  X-linked  retinitis
pigmentosa owing to defects in RPGR was admitted to the PRIME scheme of the EMA.

A sponsor may also seek an RMAT designation for its product candidates. In 2017, the FDA established the RMAT
designation  as  part  of  its  implementation  of  the  21st  Century  Cures  Act.  A  biological  product  is  eligible  for  RMAT
designation if it qualifies as an RMAT, which is defined as a cell therapy, therapeutic tissue engineering product, human
cell  and  tissue  product,  or  any  combination  product  using  such  therapies  or  products,  with  limited  exceptions,  and  is
intended  to  treat,  modify,  reverse,  or  cure  a  serious  or  life-threatening  disease  or  condition  and  for  which  preliminary
clinical evidence indicates that the biological product has the potential to address unmet medical needs for such a disease
or condition. In a February 2019 guidance, the FDA also stated that certain gene therapies that lead to a sustained effect on
cells or tissues may meet the definition of a regenerative medicine therapy. RMAT designation provides potential benefits
that include more frequent meetings with FDA to discuss the development plan for the product candidate, and eligibility
for rolling review and priority review. Products granted RMAT designation may also be eligible for accelerated approval on
the basis of a surrogate or intermediate endpoint reasonably likely to predict long-term clinical benefit, or reliance upon
data  obtained  from  a  meaningful  number  of  sites,  including  through  expansion  to  additional  sites.  RMAT-designated
products  that  receive  accelerated  approval  may,  as  appropriate,  fulfill  their  post-approval  requirements  through  the
submission of clinical evidence, clinical trials, patient registries, or other sources of real world evidence (such as electronic
health  records);  through  the  collection  of  larger  confirmatory  data  sets;  or  via  post-approval  monitoring  of  all  patients
treated with such therapy prior to approval of the therapy.

Such regulatory designations are within the discretion of the FDA, MHRA, EMA and other regulatory authorities.
Accordingly, even if we believe one of our product candidates meets the criteria for such regulatory programs designed to
accelerate  the  review  and  approval  of  new  drugs  and  we  seek  such  designations,  the  FDA,  MHRA,  EMA  or  other
applicable  regulatory  authority  may  disagree  and  instead  determine  not  to  make  such  designation  for  such  product
candidate. We cannot be sure that our evaluation of our product candidates as qualifying for such regulatory designations

60

Table of Contents

will  meet  the  regulatory  authority’s  expectations.  In  any  event,  the  receipt  of  such  regulatory  designations  for  a  product
candidate may not result in a faster development process, review, or approval compared to product candidates considered
for approval under conventional regulatory procedures and does not assure ultimate approval by the regulatory authorities.
In addition, even if additional product candidates are granted such regulatory designations, the regulatory authority may
later decide that such product candidates no longer meet the conditions for qualification or decide that the time period for
review or approval will not be shortened.

We have received orphan drug designation from the FDA and European Commission for AAV-CNGB3, AAV-CNGA3,
AAV-RPE65, botaretigene sparoparvovec, AAV-AIPL1, AAV-RDH12 and from the FDA for AAV-hAQP1, and we may
seek orphan drug designation for additional product candidates in the future, but any orphan drug designations we
have received or may receive in the future may not confer marketing exclusivity or other expected benefits.

Under the Orphan Drug Act, the FDA may designate a product as an orphan drug if it is intended to treat a rare
disease  or  condition,  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 will be recovered from sales in the United States. In the EU, the European Commission grants orphan
drug designation on the basis of the EMA’s Committee for Orphan Medicinal Products opinion.  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  EU  when  the
application  is  made,  or  (b)  the  product,  without  the  benefits  derived  from  orphan  status,  would  not  generate  sufficient
return in the EU to justify investment; and (3) there exists no satisfactory method of diagnosis, prevention or treatment, of
such condition authorized for marketing in the EU, or if such a method exists, the  product will be of significant benefit to
those affected by the condition.

In the United States, orphan drug designation entitles a party to financial incentives such as opportunities for grant
funding towards clinical trial costs, tax credits for qualified clinical testing, and user-fee waivers. In addition, if a product
receives the first FDA approval of that drug for the indication for which it has orphan designation, the product is entitled to
orphan  drug  exclusivity,  which  means  the  FDA  may  not  approve  any  other  application  to  market  the  same  drug  for  the
same  disease  or  condition  for  a  period  of  seven  years,  except  in  limited  circumstances,  such  as  a  showing  of  clinical
superiority  over  the  product  with  orphan  exclusivity  or  where  the  manufacturer  is  unable  to  assure  the  availability  of
sufficient quantities of the orphan drug to meet the needs of patients with the rare disease or condition. Under the FDA’s
regulations,  the  FDA  will  deny  orphan  drug  exclusivity  to  a  designated  drug  upon  approval  if  the  FDA  has  already
approved  another  drug  with  the  same  principal  molecular  structural  features,  in  the  case  of  a  biologic,  for  the  same
indication,  unless  the  drug  is  demonstrated  to  be  clinically  superior  to  the  previously  approved  drug.  In  the  EU,  orphan
drug designation entitles a party to financial incentives such as reduction of fees or fee waivers and ten years of market
exclusivity following approval for the approved therapeutic indication. This period may be reduced to six years if, at the
end of the fifth year, the orphan drug designation criteria are no longer met, including where it is shown that the drug is
sufficiently profitable not to justify maintenance of market exclusivity. In the EU, an MA for an orphan designated product
will not be granted if a similar drug has been approved in the EU for the same therapeutic indication, unless the applicant
can establish that its product is safer, more effective or otherwise clinically superior. A similar drug is a product containing
a  similar  active  substance  or  substances  as  those  contained  in  an  already  authorized  product.  Similar  active  substance  is
defined as an identical active substance, or an active substance with the same principal molecular structural features (but
not necessarily all of the same molecular features) and which acts via the same mechanism.

Products  with  an  orphan  designation  in  the  EU  may  be  considered  for  a  Great  Britain  orphan  marketing
authorization.  However,  where  centrally  authorized  MAs  have  an  existing  EU  orphan  designation,  these  have  been
converted  into  Great  Britain  MAs  and  shall  continue  in  effect  with  the  remaining  period  of  orphan  market  exclusivity.
Since the end of the Brexit transition period, there has been no route to obtain pre-MA orphan designation in Great Britain,
however, as a result of the implementation of the Protocol on Ireland and Northern Ireland, EU orphan drug designation
and time periods of market exclusivity still remain valid for marketing products in Northern Ireland. Instead, the MHRA

61

Table of Contents

now reviews applications for Great Britain orphan designation in parallel with the corresponding MA application. Market
exclusivity  periods  between  those  approved  by  the  MHRA  may  vary  to  products  which  already  have  an  EU  orphan
designation.

We  have  obtained  orphan  drug  designation  from  the  FDA  and  European  Commission  for  AAV-CNGB3  for  the
treatment of achromatopsia caused by mutations in the CNGB3 gene, for AAV-CNGA3 for the treatment of achromatopsia
due to autosomal-recessive CNGA3 gene mutations, for AAV-RPE65 for the treatment of Leber congenital amaurosis, for
botaretigene  sparoparvovec  for  the  treatment  of  X-linked  retinitis  pigmentosa,  for  AAV-AIPL1  for  the  treatment  of
inherited retinal dystrophy due to defects in AIPL1 gene and for AAV-RDH12 for the treatment of retinol dehydrogenase
12  (RDH12)  mutation-associated  retinal  dystrophy,  and  we  obtained  orphan  drug  designation  from  the  FDA  for  AAV-
hAQP1 for the treatment of grade 2 and grade 3 late xerostomia from parotid gland hypofunction caused by radiotherapy.
We may seek orphan drug designation for other current and future product candidates. Even with orphan drug designation,
we may not be the first to obtain marketing approval for any particular orphan indication due to the uncertainties associated
with  developing  pharmaceutical  products,  which  could  prevent  us  from  marketing  our  product  candidates  if  another
company  is  able  to  obtain  orphan  drug  exclusivity  before  we  do.  In  addition,  exclusive  marketing  rights  in  the  United
States and the EU may be unavailable if we seek approval for an indication broader than the orphan-designated indication
or may be lost in the United States or EU if the FDA or foreign authorities later determine that the request for designation
was materially defective or if we are unable to assure sufficient quantities of the drug to meet the needs of patients with the
rare disease or condition following approval. Further, even if we obtain orphan drug exclusivity, that exclusivity may not
effectively  protect  our  product  candidates  from  competition  because  different  biologics  with  different  active  principal
molecular  structural  features  can  be  approved  for  the  same  condition.  In  addition,  the  FDA  can  subsequently  approve
products with the same principal molecular structural features, in the case of a biologic, for the same condition if the FDA
concludes that the later product is safer, more effective, or makes a major contribution to patient care. Likewise, in the EU
and  Great  Britain,  the  European  Commission  or  MHRA,  respectively,  can  approve  a  similar  product  for  the  same
therapeutic  indication,  if  it  concludes  that  the  later  product  is  safer,  more  effective  or  clinically  superior.  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, while we intend to seek orphan drug designation for other existing
and future product candidates, we may never receive such designations. There have been legal challenges to aspects of the
FDA’s regulations and policies concerning the exclusivity provisions of the Orphan Drug Act, and future challenges could
lead  to  changes  that  affect  the  protections  afforded  our  product  candidates  in  ways  that  are  difficult  to  predict.  It  is
uncertain how ongoing and future challenges might affect our business.

We and our contract manufacturers for plasmid are subject to significant regulation with respect to manufacturing our
products. Our manufacturing facilities and the third-party manufacturing facilities which we rely on 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 plasmid, a component
of  our  viral  vectors  and  product  candidates.  We  completed  the  fit-out  of  our  first  cGMP  manufacturing  facility  in  early
2018 and we completed the acquisition of the buildings for our second cGMP viral vector manufacturing facility and our
first cGMP plasmid and DNA production facility in Shannon, Ireland in January 2021 to expand our manufacturing and
supply  chain  capabilities.  However,  if  we  experience  slowdowns  or  problems  with  our  completed  facility  or  the
development and startup of our new facilities and are unable to establish or scale our internal manufacturing capabilities,
we will need to continue to contract with manufacturers that can produce the preclinical, clinical and commercial supply of
our products. Each supplier may require licenses to manufacture such 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 therapeutics for clinical trials or commercial sale, including our existing
contract  manufacturers  for  components  of  our  product  candidates,  are  subject  to  extensive  regulation.  Components  of  a
finished  therapeutic  product  approved  for  commercial  sale  or  used  in  late-stage  clinical  trials  must  be  manufactured  in
accordance with cGMP. These regulations govern manufacturing processes and procedures (including record keeping) and

62

Table of Contents

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 product candidates that may not be detectable in
final product testing. We or our contract manufacturers must supply all necessary documentation in support of a BLA or
MAA on a timely basis. Our facilities and quality systems and 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 product candidates 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 product candidates 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, MHRA or other regulatory approval
of the products will not be granted.

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  trial  or  commercial  sales  or  the
temporary or permanent closure of a facility. Any such remedial measures imposed upon us or third parties with whom we
contract could harm our business. If we or any of our third-party manufacturers fail to maintain regulatory compliance, the
FDA,  MHRA  or  other  regulatory  authorities  can  impose  regulatory  sanctions  including,  among  other  things,  refusal  to
approve a pending application for a new drug product or biologic product, or revocation of a pre-existing approval. As a
result,  our  business,  financial  condition  and  results  of  operations  may  be  harmed.  Additionally,  if  supply  from  one
approved  manufacturer  is  interrupted,  there  could  be  a  significant  disruption  in  commercial  supply.  An  alternative
manufacturer would need to be qualified through a BLA and/or MAA 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.

These  factors  could  cause  the  delay  of  clinical  trials,  regulatory  submissions,  required  approvals  or
commercialization  of  our  product  candidates,  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 trials may be delayed, or
we could lose potential revenue.

Any contamination in our manufacturing process, shortages of raw materials or failure of our plasmid supplier to
deliver necessary components, or other issues with the manufacturing process, could result in delays in our clinical
development or marketing schedules.

Given the nature of biologics manufacturing, there is a risk of contamination. Any contamination could adversely
affect our ability to produce product candidates on schedule and could, therefore, harm our results of operations and cause
reputational damage. Some of the raw materials required in our manufacturing process are derived from biologic sources.
Such raw materials are difficult to procure and may be subject to contamination or recall. In addition, our manufacturing
process is complex, and the manufacturing batch cycle period can be several weeks long. Each batch cycle may not yield
planned  quantities  or  meet  the  required  standards.  A  material  shortage,  contamination,  recall  or  restriction  on  the  use  of
biologically  derived  substances  in  the  manufacture  of  our  product  candidates,  failure  of  manufacturing  equipment  or
systems or other issues with our manufacturing process, could adversely impact or disrupt the commercial manufacturing
or the production of clinical material, which could adversely affect our development timelines and our business, financial
condition, results of operations and prospects.

63

Table of Contents

Expanding our manufacturing capacity has and will continue to be costly and we may be unsuccessful in doing so in a
timely manner, which could delay our current and future clinical development programs, or delay the
commercialization of our product candidates.

In addition to our existing manufacturing facility in London, United Kingdom, we may lease, operate, purchase, or
construct additional facilities to conduct expanded manufacturing or other related activities in the future. In January 2021,
we completed the acquisition of the buildings for our second cGMP viral vector manufacturing facility and our first cGMP
plasmid  and  DNA  production  facility  in  Shannon,  Ireland.  Expanding  our  manufacturing  capacity  to  produce  the
preclinical, clinical and commercial supply of our products and their components will require completing the development
and startup of our new facilities in Ireland, substantial additional expenditures, time, and various regulatory approvals and
permits,  all  of  which  may  be  impacted  by  the  COVID-19  pandemic.  Further,  we  will  need  to  hire  and  train  significant
numbers  of  employees  and  managerial  personnel  to  staff  our  expanding  manufacturing  and  supply  chain  operations,
including in our new facilities in Ireland. Start-up costs can be large and may exceed our expectations, and scale-up entails
significant risks related to process development and manufacturing yields. In addition, we may face difficulties or delays in
developing  or  acquiring  the  necessary  production  equipment  and  technology  to  manufacture  sufficient  quantities  of  our
product candidates for use in clinical trials and, should they be approved, to supply the commercial market at reasonable
costs and in compliance with applicable regulatory requirements. We may not successfully expand or establish sufficient
manufacturing capabilities or manufacture our products economically or in compliance with cGMP and other regulatory
requirements,  and  we  and  our  collaborators  may  not  be  able  to  build  or  procure  additional  capacity  in  the  required
timeframe  to  meet  the  requirements  of  our  clinical  programs  or  to  meet  potential  commercial  demand  for  our  product
candidates. This could also delay or require us to discontinue one or more of our clinical development programs or could
interfere with our efforts to successfully commercialize our products. As a result, our business, prospects, operating results,
and financial condition could be materially harmed.

If we encounter difficulties enrolling patients in our clinical trials, our clinical development activities could be delayed
or otherwise adversely affected.

The  timely  completion  of  clinical  trials  in  accordance  with  their  protocols  depends,  among  other  things,  on  our
ability to enroll a sufficient number of patients who remain in the study until its conclusion. The natural history studies may
fail to provide us with patients for our clinical trials because patients enrolled in the natural history studies may not be good
candidates for our clinical trials or may choose to not enroll in our clinical trials. We may encounter delays in enrolling, or
be unable to enroll, a sufficient number of patients to complete any of our clinical trials, and even once enrolled we may be
unable to retain a sufficient number of patients to complete any of our trials. This may result in increased costs, program
delays or both, which could have a harmful effect on our ability to develop our product candidates, or could render further
development impossible. The enrollment of patients depends on many factors, including:

● the size and nature of the patient population;

● the patient eligibility criteria defined in the protocol;

● the size of the patient population required for analysis of the trial’s primary endpoints;

● the proximity of patients to study sites;

● the design of the trial or side effects that may arise in development;

● our ability to recruit clinical trial investigators with the appropriate competencies and experience;

64

Table of Contents

● clinicians’ and patients’ perceptions as to the potential advantages of the product candidate being studied
in  relation  to  other  available  therapies,  including  any  new  products  that  may  be  approved  for  the
indications we are investigating;

● our ability to obtain and maintain patient consents;

● the risk that patients enrolled in clinical trials will drop out of the trials before completion; and

● business  interruptions  resulting  from  geopolitical  actions,  including  war  and  terrorism,  or  widespread
health  emergencies,  such  as  the  COVID-19  pandemic,  or  natural  disasters  including  earthquakes,
typhoons, floods and fires, or from economic or political instability.

In  addition,  other  clinical  trials  for  product  candidates  that  are  in  the  same  therapeutic  areas  as  our  product
candidates or approved products for the same clinical indications (such as Luxturna marketed by Spark Therapeutics, Inc.
for the treatment of RPE65-associated retinal disease) may reduce the number and type of patients available to us.

Our product candidates may cause serious adverse events or undesirable side effects or have other properties which may
delay or prevent their regulatory approval, limit the commercial profile of an approved label, or, result in significant
negative consequences following marketing approval, if any.

Serious adverse events or undesirable side effects caused by our product candidates could cause us or regulatory
authorities  to  interrupt,  delay  or  halt  clinical  trials  and  could  result  in  a  more  restrictive  label  or  the  delay  or  denial  of
regulatory  approval  by  the  FDA,  MHRA  or  other  authorities.  Results  of  our  clinical  trials  could  reveal  a  high  and
unacceptable severity and prevalence of side effects, toxicities or unexpected characteristics, including death. A risk in any
gene therapy product based on viral vectors is the risk of insertional mutagenesis.

If unacceptable side effects or deaths arise in the development of our product candidates, we, the FDA, the IRBs at
the  institutions  in  which  our  studies  are  conducted,  DSMB,  or  other  regulatory  bodies  could  suspend  or  terminate  our
clinical trials or the FDA, MHRA or other regulatory authorities could order us to cease clinical trials or deny approval of
our  product  candidates  for  any  or  all  targeted  indications.  Undesirable  side  effects  or  deaths  in  clinical  trials  with  our
product  candidates  may  cause  the  FDA  or  comparable  foreign  regulatory  authorities  to  place  a  clinical  hold  on  the
associated clinical trials, to require additional studies, or otherwise to delay or deny approval of our product candidates for
any or all targeted indications. Treatment-related side effects could also affect patient recruitment or the ability of enrolled
patients  to  complete  the  trial  or  result  in  potential  product  liability  claims.  In  addition,  these  side  effects  may  not  be
appropriately recognized or managed by the treating medical staff. We expect to have to train medical personnel using our
product candidates to understand the side effect profiles for our clinical trials and upon any commercialization of any of
our product candidates. Inadequate training in recognizing or managing the potential side effects of our product candidates
could result in patient injury or death. Any of these occurrences may harm our business, financial condition and prospects
significantly.

If  any  of  our  product  candidates  receives  marketing  approval,  and  we  or  others  later  identify  undesirable  side
effects caused by any such product, including during any long-term follow-up observation period recommended or required
for  patients  who  receive  treatment  using  our  products,  a  number  of  potentially  significant  negative  consequences  could
result, including:

● regulatory authorities may withdraw approvals of such product;

● we may be required to recall a product or change the way such product is administered to patients;

● additional restrictions may be imposed on the marketing of the particular product or the manufacturing

processes for the product;

65

Table of Contents

● regulatory authorities may require additional warnings on the label, such as a “black box” warning or

contraindication;

● we may be required to implement a Risk Evaluation and Mitigation Strategy, or REMS, or create a

medication guide outlining the risks of such side effects for distribution to patients or similar risk
management measures;

● the product could become less competitive;

● we could be sued and held liable for harm caused to patients; and

● our reputation may suffer.

Any of these events could prevent us from achieving or maintaining market acceptance of the particular product

candidate, if approved, and could significantly harm our business, results of operations and prospects.

Success in preclinical studies or clinical trials may not be indicative of results in future clinical trials.

Results  from  previous  preclinical  studies  or  clinical  trials  are  not  necessarily  predictive  of  future  clinical  trial
results, and interim results of a clinical trial are not necessarily indicative of final results. Our product candidates may fail
to  show  the  desired  safety  and  efficacy  in  clinical  development  despite  positive  results  in  preclinical  studies  or  having
successfully advanced through initial clinical trials.

Success  in  preclinical  testing  and  early  clinical  trials  does  not  ensure  that  later  clinical  trials  will  generate  the

same results or otherwise provide adequate data to demonstrate the efficacy and safety of a product candidate.

Frequently,  product  candidates  that  have  shown  promising  results  in  early  clinical  trials  have  subsequently
suffered  significant  setbacks  in  later  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  have  limited  experience  designing  clinical  trials  and  may  be  unable  to  design  and
execute  a  clinical  trial  to  support  regulatory  approval.  There  is  a  high  failure  rate  for  drugs  and  biologic  products
proceeding  through  clinical  trials.  Data  obtained  from  preclinical  and  clinical  activities  are  subject  to  varying
interpretations,  which  may  delay,  limit  or  prevent  regulatory  approval,  which  could  negatively  impact  our  business,
financial condition, results of operations and prospects.

The regulatory approval processes of the FDA, MHRA, competent authorities in the EU and other regulatory
authorities are lengthy, time consuming and inherently unpredictable, and if we are ultimately unable to obtain
regulatory approval for our product candidates, our business will be substantially harmed.

The time required to obtain approval by the FDA, MHRA, European Commission and other regulatory authorities
is  unpredictable  but  typically  takes  many  years  following  the  commencement  of  clinical  trials  and  depends  upon
numerous  factors,  including  the  substantial  discretion  of  the  regulatory  authorities.  In  addition,  approval  policies,
regulations, or the type and amount of clinical data necessary to gain approval may change during the course of a product
candidate’s  clinical  development  and  may  vary  among  jurisdictions.  For  instance,  the  EU  pharmaceutical  legislation  is
currently  undergoing  a  complete  review  process,  in  the  context  of  the  Pharmaceutical  Strategy  for  Europe  initiative,
launched  by  the  European  Commission  in  November  2020.  A  proposal  for  revision  of  several  legislative  instruments
related  to  medicinal  products  (potentially  revising  the  duration  of  regulatory  exclusivity,  eligibility  for  expedited
pathways, etc.) is expected to be adopted by the European Commission by the end of 2022. The proposed revisions, once
they are agreed and adopted by the European Parliament and European Council (not expected before the end of 2024)
may have a significant impact on the pharmaceutical industry in the long term.

66

Table of Contents

We have not obtained regulatory approval for any product candidate and it is possible that none of our product
candidates  in  clinical  programs  or  any  other  product  candidates  we  may  seek  to  develop  in  the  future  will  ever  obtain
regulatory approval. Neither we nor any future collaborator is permitted to market any of our product candidates in the
United  States,  the  UK  or  the  EU  until  we  receive  regulatory  approval  of  a  BLA  from  the  FDA  or  an  MAA  from  the
MHRA or European Commission, respectively. It is possible that the FDA may refuse to accept for substantive review
any BLAs, or the MHRA or EMA any of our MAAs, that we submit for our product candidates or may conclude after
review of our data that our application is insufficient to obtain marketing approval of our product candidates.

Prior  to  obtaining  approval  to  commercialize  a  product  candidate  in  the  United  States,  the  UK,  the  EU  or
elsewhere, we or our collaborators must demonstrate with substantial evidence from well-controlled clinical trials, and to
the  satisfaction  of  the  FDA,  MHRA,  EMA  or  foreign  regulatory  agencies,  that  such  product  candidates  are  safe  and
effective for their intended uses. Results from nonclinical studies and clinical trials can be interpreted in different ways.
Even  if  we  believe  the  nonclinical  or  clinical  data  for  our  product  candidates  are  promising,  such  data  may  not  be
sufficient  to  support  approval  by  the  FDA,  MHRA,  European  Commission  or  other  regulatory  authorities.  The  FDA,
MHRA or EMA may also require us to conduct additional preclinical studies or clinical trials for our product candidates
either  prior  to  or  post-approval,  or  it  may  object  to  elements  of  our  clinical  development  program.  Depending  on  the
extent of these or any other FDA, MHRA or EMA required studies, approval of any regulatory approval applications that
we  submit  may  be  delayed  by  several  years,  or  may  require  us  to  expend  significantly  more  resources  than  we  have
available.

Of  the  large  number  of  potential  products  in  development,  only  a  small  percentage  successfully  complete  the
FDA, MHRA, or other foreign regulatory approval processes and are commercialized. The lengthy approval process as
well as the unpredictability of future clinical trial results may result in our failing to obtain regulatory approval to market
our product candidates, which would significantly harm our business, results of operations and prospects.

Even if we and / or our collaboration partners, as applicable, obtain FDA, MHRA or European Commission
approval for AAV-GAD, botaretigene sparoparvovec, AAV-CNGB3, AAV-CNGA3, AAV-RPE65, AAV-hAQP1 or our
other product candidates in the United States, UK or EU, we may never obtain approval for or commercialize them in
any other jurisdiction, which would limit our ability to realize their full market potential.

In order to market any products in any particular jurisdiction, we must establish and comply with numerous and
varying regulatory requirements on a country-by-country basis regarding safety and efficacy. Approval by the FDA in the
United  States,  the  MHRA  in  the  UK  or  the  competent  authorities  in  the  EU  does  not  ensure  approval  by  regulatory
authorities in other countries or jurisdictions. However, the failure to obtain approval in one jurisdiction may negatively
impact our ability to obtain approval elsewhere. In addition, clinical trials conducted in one country may not be accepted
by  regulatory  authorities  in  other  countries,  and  regulatory  approval  in  one  country  does  not  guarantee  regulatory
approval in any other country.

Approval processes vary among countries and can involve additional product testing and validation and additional
administrative review periods. Seeking foreign regulatory approval could result in difficulties and increased costs for us
and  require  additional  preclinical  studies  or  clinical  trials  which  could  be  costly  and  time  consuming.  Regulatory
requirements  can  vary  widely  from  country  to  country  and  could  delay  or  prevent  the  introduction  of  our  products  in
those countries. We do not have any product candidates approved for sale in any jurisdiction, including in international
markets, and we do not have experience in obtaining regulatory approval in international markets. If we fail to comply
with  regulatory  requirements  in  international  markets  or  to  obtain  and  maintain  required  approvals,  or  if  regulatory
approvals in international markets are delayed, our target market will be reduced and our ability to realize the full market
potential of any product we develop will be unrealized.

67

Table of Contents

Even if we receive regulatory approval of one or more of our product candidates, we will be subject to ongoing
regulatory obligations and continued regulatory review, which may result in significant additional expense, and we may
be subject to penalties if we fail to comply with regulatory requirements or experience unanticipated problems with our
product candidates.

Any  product  candidate  for  which  we  obtain  marketing  approval,  along  with  the  manufacturing  processes,  post-
approval clinical data, labeling, packaging, distribution, adverse event reporting, storage, recordkeeping, export, import,
advertising  and  promotional  activities  for  such  product,  among  other  things,  will  be  subject  to  extensive  and  ongoing
requirements  of  and  review  by  the  FDA,  MHRA  and  other  regulatory  authorities.  These  requirements  include
submissions  of  safety  and  other  post-marketing  information  and  reports,  establishment  registration  and  drug  listing
requirements,  continued  compliance  with  cGMP  and  similar  requirements  relating  to  manufacturing,  quality  control,
quality assurance and corresponding maintenance of records and documents, requirements regarding the distribution of
samples to physicians and recordkeeping and GCP requirements for any clinical trials that we conduct post-approval.

The FDA, MHRA and other regulatory authorities closely regulate the post-approval marketing and promotion of
genetic  therapy  medicines  to  ensure  they  are  marketed  only  for  the  approved  indications  and  in  accordance  with  the
provisions of the approved labeling. The FDA, MHRA and other regulatory authorities impose stringent restrictions on
manufacturers’  communications  regarding  off-label  use  and  if  we  market  our  products  for  uses  beyond  their  approved
indications, we may be subject to enforcement action for off-label marketing. Violations of the U.S. federal Food, Drug,
and Cosmetic Act, or FDCA, relating to the promotion of prescription drugs may lead to FDA enforcement actions and
investigations  alleging  violations  of  federal  and  state  health  care  fraud  and  abuse  laws,  as  well  as  state  consumer
protection laws. Similar risks apply in foreign jurisdictions.  

In  addition,  later  discovery  of  previously  unknown  adverse  events  or  other  problems  with  our  products,
manufacturers or manufacturing processes, including adverse events of unanticipated severity or frequency, or with our
manufacturing  processes  or  third-party  manufacturers,  or  failure  to  comply  with  regulatory  requirements,  may  yield
various results, including:

● restrictions on manufacturing such products;

● restrictions on the labeling or marketing of a product;

● restrictions on product distribution or use;

● requirements to conduct post-marketing studies or clinical trials;

● warning letters or holds on clinical trials;

● withdrawal of the products from the market;

● refusal to approve pending applications or supplements to approved applications that we submit;

● recall of products;

● fines, restitution or disgorgement of profits or revenues;

● suspension or withdrawal of marketing approvals;

● refusal to permit the import or export of our products;

● product seizure or detention; or

68

Table of Contents

● injunctions or the imposition of civil or criminal penalties.

The FDA’s and foreign regulatory authorities’ policies may change and additional government regulations may be
enacted  that  could  prevent,  limit  or  delay  regulatory  approval  of  our  product  candidates.  We  also  cannot  predict  the
likelihood, nature or extent of government regulation that may arise from future legislation or administrative action, either
in the United States or in other countries. If we are slow or unable to adapt to changes in existing requirements or the
adoption  of  new  requirements  or  policies,  or  if  we  are  not  able  to  maintain  regulatory  compliance,  we  may  lose  any
marketing  approval  that  we  may  have  obtained  which  would  adversely  affect  our  business,  prospects  and  ability  to
achieve or sustain profitability.

Interim, “topline” and preliminary data from our clinical trials that we announce or publish from time to time may
change as more patient data become available and are subject to audit and verification procedures that could result
in material changes in the final data.

From time to time, we may publicly disclose preliminary or topline data from our clinical trials, which is based on

a preliminary analysis of then-available data, and the results and related findings and conclusions are subject to change
following a more comprehensive review of the data related to the particular study or trial. We also make assumptions,
estimations, calculations and conclusions as part of our analyses of data, and we may not have received or had the
opportunity to fully and carefully evaluate all data. As a result, the topline or preliminary results that we report may differ
from future results of the same studies, or different conclusions or considerations may qualify such results, once additional
data have been received and fully evaluated. Topline and preliminary data also remain subject to audit and verification
procedures that may result in the final data being materially different from the topline or preliminary data we previously
published. As a result, topline and preliminary data should be viewed with caution until the final data are available.

 From time to time, we may also disclose interim data from our clinical trials. Interim data from these trials that 

we may complete are subject to the risk that one or more of the clinical outcomes may materially change as subject 
enrollment continues and more data become available. Adverse differences between interim data and topline, preliminary, 
or final data could significantly harm our business prospects. Further, disclosure of interim data by us or by our competitors 
could result in volatility in the price of our common stock. 

  Further,  others,  including  regulatory  agencies,  may  not  accept  or  agree  with  our  assumptions,  estimates,
calculations, conclusions or analyses or may interpret or weigh the importance of data differently, which could impact the
value of the particular program, the approvability or commercialization of the particular product candidate or product and
our company in general. In addition, the information we choose to publicly disclose regarding a particular clinical trial is
based on what is typically extensive information, and you or others may not agree with what we determine is material or
otherwise appropriate information to include in our disclosure. If the interim, topline, or preliminary data that we report
differ from actual results, or if others, including regulatory authorities, disagree with the conclusions reached, our ability
to  obtain  approval  for,  and  commercialize,  our  product  candidates  may  be  harmed,  which  could  harm  our  business,
operating results, prospects or financial condition.

We may expend our limited resources to pursue a particular product candidate or indication and fail to capitalize
on product candidates or indications that may be more profitable or for which there is a greater likelihood of
success.

Because  we  have  limited  financial  and  managerial  resources,  we  focus  on  research  programs  and  product
candidates that we identify for specific indications. As a result, we may forego or delay pursuit of opportunities with other
product candidates or for other indications that later prove to have greater commercial potential. Our resource allocation
decisions may cause us to fail to timely capitalize on viable commercial products or profitable market opportunities. Our
spending on current and future research and development programs and product candidates for specific indications may
not yield any commercially viable products. If we do not accurately evaluate the commercial potential

69

Table of Contents

or target market for a particular product candidate, we may relinquish valuable rights to that product candidate through
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 product candidate.

Changes in funding for, or disruptions caused by global health concerns impacting, the FDA and other government
or regulatory agencies could hinder their ability to hire and retain key leadership and other personnel, or otherwise
prevent new products and services from being developed, approved or commercialized in a timely manner, which
could negatively impact our business.

The ability of the FDA and foreign regulatory authorities to review and approve new products can be affected by a
variety  of  factors,  including  government  budget  and  funding  levels,  ability  to  hire  and  retain  key  personnel,  including
those with experience relating to novel gene therapy product candidates, acceptance of the payment of user fees, statutory,
regulatory,  and  policy  changes  and  other  events  that  may  otherwise  affect  the  FDA’s  or  foreign  regulatory  authorities’
ability to perform routine functions. Average review times at the FDA and foreign regulatory authorities have fluctuated
in  recent  years  as  a  result.  In  addition,  government  funding  of  other  government  agencies  that  fund  research  and
development activities is subject to the political process, which is inherently fluid and unpredictable.

Disruptions at the FDA and other government or regulatory agencies such as the EMA, following its relocation to
Amsterdam  and  related  reorganization  (including  staff  changes),  may  also  slow  the  time  necessary  for  new  product
candidates to be reviewed and/or approved, which would adversely affect our business. For example, over the last several
years, the U.S. government has shut down several times and certain regulatory agencies, such as the FDA, have had to
furlough  critical  FDA  employees  and  stop  critical  activities.  While  Congress  is  currently  negotiating  a  spending  bill  to
extend  federal  funding  through  September  30,  2022,  the  risk  of  a  U.S.  government  shutdown  remains  a  probability  if
Congress cannot reach an agreement before the current short-term spending bill expires.  

Separately, in response to the COVID-19 pandemic, in March 2020 the FDA announced its intention to postpone
most  inspections  of  foreign  manufacturing  facilities  and  products  and  also  temporarily  postponed  routine  surveillance
inspections of domestic manufacturing facilities. Subsequently, in July 2020, the FDA resumed certain on-site inspections
of  domestic  manufacturing  facilities  subject  to  a  risk-based  prioritization  system.  The  FDA  utilized  this  risk-based
assessment  system  to  assist  in  determining  when  and  where  it  is  safest  to  conduct  prioritized  domestic  inspections.
Additionally, on April 15, 2021, the FDA issued a guidance document in which the FDA described its plans to conduct
voluntary remote interactive evaluations of certain drug manufacturing facilities and clinical research sites, among other
facilities.  According  to  the  guidance,  the  FDA  may  request  such  remote  interactive  evaluations  where  the  FDA
determines that remote evaluation would be appropriate based on mission needs and travel limitations.  In May 2021, the
FDA  outlined  a  detailed  plan  to  move  toward  a  more  consistent  state  of  inspectional  operations,  and  in  July  2021,  the
FDA  resumed  standard  inspectional  operations  of  domestic  facilities  and  was  continuing  to  maintain  this  level  of
operation  as  of  September  2021.  More  recently,  the  FDA  has  continued  to  monitor  and  implement  changes  to  its
inspectional activities to ensure the safety of its employees and those of the firms it regulates as it adapts to the evolving
COVID-19 pandemic. Regulatory authorities outside the U.S. have adopted similar restrictions or other policy measures
in  response  to  the  COVID-19  pandemic  and  may  experience  delays  in  their  regulatory  activities.  If  a  prolonged
government  shutdown  occurs,  or  if  global  health  concerns  continue  to  prevent  the  FDA  or  other  regulatory  authorities
from conducting business as usual or conducting inspections, reviews or other regulatory activities, it could significantly
impact  the  ability  of  such  regulatory  authorities  to  timely  review  and  process  our  regulatory  submissions,  which  could
have a material adverse effect on our business.

70

Table of Contents

Risks Related to Healthcare Laws and Other Legal Compliance Matters

Enacted and future healthcare legislation may increase the difficulty and cost for us to obtain marketing approval
of and commercialize our product candidates and may affect the prices we may set.

In the United States, the UK, the EU and other jurisdictions, there have been, and we expect there will continue to
be, a number of legislative and regulatory changes and proposed changes to the healthcare system that could affect our
future results of operations. In particular, there have been and continue to be a number of initiatives at the U.S. federal
and state levels that seek to reduce healthcare costs and improve the quality of healthcare. For example, in March 2010,
the  Patient  Protection  and  Affordable  Care  Act,  as  amended  by  the  Health  Care  and  Education  Reconciliation  Act,  or
collectively the ACA, was enacted, which substantially changed the way healthcare is financed by both governmental and
private insurers. Among the provisions of the ACA, those of greatest importance to the pharmaceutical and biotechnology
industries include the following:

● an  annual,  non-deductible  fee  payable  by  any  entity  that  manufactures  or  imports  certain  branded
prescription  drugs  and  biologic  agents  (other  than  those  designated  as  orphan  drugs),  which  is
apportioned  among  these  entities  according  to  their  market  share  in  certain  government  healthcare
programs;

● a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program

are calculated for drugs that are inhaled, infused, instilled, implanted or injected;

● expansion of eligibility criteria for Medicaid programs by, among other things, allowing states to offer
Medicaid  coverage  to  certain  individuals  with  income  at  or  below  133%  of  the  federal  poverty  level,
thereby potentially increasing a manufacturer’s Medicaid rebate liability;

● a licensure framework for follow on biologic products;

● a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in, and conduct

comparative clinical effectiveness research, along with funding for such research; and

● establishment of a Center for Medicare & Medicaid Innovation at the Centers for Medicare & Medicaid
Services,  or  CMS,  to  test  innovative  payment  and  service  delivery  models  to  lower  Medicare  and
Medicaid spending, potentially including prescription drug spending.

Since its enactment, there have been judicial, Congressional and executive branch challenges to certain aspects of
the ACA. On June 17, 2021, the U.S. Supreme Court dismissed the most recent judicial challenge to the ACA brought by
several  states  without  specifically  ruling  on  the  constitutionality  of  the  ACA.  Prior  to  the  Supreme  Court’s  decision,
President  Biden  issued  an  executive  order  to  initiate  a  special  enrollment  period  for  purposes  of  obtaining  health
insurance coverage through the ACA marketplace from February 15, 2021 through August 15, 2021.  The executive order
also instructed certain governmental agencies to review and reconsider their existing policies and rules that limit access to
healthcare, including among others, reexamining Medicaid demonstration projects and waiver programs that include work
requirements,  and  policies  that  create  unnecessary  barriers  to  obtaining  access  to  health  insurance  coverage  through
Medicaid or the ACA.

In  addition,  other  legislative  changes  have  been  proposed  and  adopted  in  the  United  States  since  the  ACA  was
enacted. In August 2011, the Budget Control Act of 2011, among other things, led to aggregate reductions of Medicare
payments  to  providers  of  2%  per  fiscal  year.  These  reductions  went  into  effect  in  April  2013  and,  due  to  subsequent
legislative amendments to the statute, will remain in effect through 2030, with the exception of a temporary suspension
from  May  1,  2020  through  December  31,  2021,  unless  additional  action  is  taken  by  Congress.  In  January  2013,  the
American Taxpayer Relief Act of 2012 was signed into law, which, among other things, further reduced Medicare

71

Table of Contents

payments to several types of providers, including hospitals, imaging centers and cancer treatment centers, and increased
the statute of limitations period for the government to recover overpayments to providers from three to five years. These
new  laws  or  any  other  similar  laws  introduced  in  the  future  may  result  in  additional  reductions  in  Medicare  and  other
health care funding, which could negatively affect our customers and accordingly, our financial operations.

Moreover, payment methodologies may be subject to changes in healthcare legislation and regulatory initiatives.
For  example,  CMS  may  develop  new  payment  and  delivery  models,  such  as  bundled  payment  models.  In  addition,
recently  there  has  been  heightened  governmental  scrutiny  over  the  manner  in  which  manufacturers  set  prices  for  their
marketed  products,  which  has  resulted  in  several  U.S.  Congressional  inquiries  and  proposed  and  enacted  federal
legislation designed to, among other things, bring more transparency to drug pricing, reduce the cost of prescription drugs
under  Medicare,  and  review  the  relationship  between  pricing  and  manufacturer  patient  programs.  We  expect  that
additional U.S. federal healthcare reform measures will be adopted in the future, any of which could limit the amounts
that the U.S. federal government will pay for healthcare products and services, which could result in reduced demand for
our product candidates or additional pricing pressures.

Individual  states  in  the  United  States  have  also  increasingly  passed  legislation  and  implemented  regulations
designed to control pharmaceutical and biological product pricing, including price or patient reimbursement constraints,
discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some
cases, designed to encourage importation from other countries and bulk purchasing. Legally mandated price controls on
payment  amounts  by  third-party  payors  or  other  restrictions  could  harm  our  business,  results  of  operations,  financial
condition  and  prospects.  In  addition,  regional  healthcare  authorities  and  individual  hospitals  are  increasingly  using
bidding procedures to determine what pharmaceutical products and which suppliers will be included in their prescription
drug and other healthcare programs. This could reduce the ultimate demand for our product candidates or put pressure on
our product pricing.

In addition, FDA regulations and guidance may be revised or reinterpreted by the FDA in ways that may
significantly affect our business and our products. Any new regulations or guidance, or revisions or reinterpretations of
existing regulations or guidance, may impose additional costs or lengthen FDA review times for our product candidates.
We cannot determine how changes in regulations, statutes, policies, or interpretations when and if issued, enacted or
adopted, may affect our business in the future.

Such  changes  would  likely  require  substantial  time  and  impose  significant  costs,  or  could  reduce  the  potential
commercial value of our product candidates, and could materially harm our business and our financial results. In addition,
delays  in  receipt  of  or  failure  to  receive  regulatory  clearances  or  approvals  for  any  other  products  would  harm  our
business, financial condition, and results of operations.

In the UK and EU, similar political, economic and regulatory developments may affect our ability to profitably
commercialize  our  product  candidates,  if  approved.  In  addition  to  continuing  pressure  on  prices  and  cost  containment
measures,  legislative  developments  at  the  UK  or  the  EU  or  member  state  level  may  result  in  significant  additional
requirements  or  obstacles  that  may  increase  our  operating  costs.  The  delivery  of  healthcare  in  the  UK  and  the  EU,
including the establishment and operation of health services and the pricing and reimbursement of medicines, is almost
exclusively  a  matter  for  national  law  and  policy.  National  governments  and  health  service  providers  have  different
priorities and approaches to the delivery of health care and the pricing and reimbursement of products in that context. In
general,  however,  the  healthcare  budgetary  constraints  in  the  UK  and  in  most  EU  member  states  have  resulted  in
restrictions  on  the  pricing  and  reimbursement  of  medicines  by  relevant  health  service  providers.  Coupled  with  ever-
increasing  national  regulatory  burdens  on  those  wishing  to  develop  and  market  products,  this  could  prevent  or  delay
marketing  approval  of  our  product  candidates,  restrict  or  regulate  post-approval  activities  and  affect  our  ability  to
commercialize our product candidates, if approved.

In markets outside of the United States, the UK and the EU, reimbursement and healthcare payment systems vary

significantly by country, and many countries have instituted price ceilings on specific products and therapies.

72

Table of Contents

We cannot predict the likelihood, nature or extent of government regulation that may arise from future legislation
or administrative action in the United States, the UK the EU or any other jurisdiction. If we or any third parties we may
engage are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or
if we or such third parties are not able to maintain regulatory compliance, our product candidates may lose any regulatory
approval that may have been obtained and we may not achieve or sustain profitability.

Our  business  operations  and  current  and  future  relationships  with  investigators,  healthcare  professionals,
consultants,  third-party  payors,  patient  organizations  and  customers  will  be  subject  to  applicable  healthcare
regulatory laws, which could expose us to penalties.

Our  business  operations  and  current  and  future  arrangements  with  investigators,  healthcare  professionals,
consultants, third-party payors, patient organizations and customers, may expose us to broadly applicable fraud and abuse
laws  and  other  healthcare  laws  and  regulations.  These  laws  may  constrain  the  business  or  financial  arrangements  and
relationships  through  which  we  conduct  our  operations,  including  how  we  research,  market,  sell  and  distribute  our
product candidates, if approved. Such laws include:

● the  U.S.  federal  Anti-Kickback  Statute,  which  prohibits,  among  other  things,  persons  or  entities  from
knowingly  and  willfully  soliciting,  offering,  receiving  or  providing  any  remuneration  (including  any
kickback, bribe, or certain rebate), directly or indirectly, overtly or covertly, in cash or in kind, to induce
or  reward,  or  in  return  for,  either  the  referral  of  an  individual  for,  or  the  purchase,  lease,  order  or
recommendation of, any good, facility, item or service, for which payment may be made, in whole or in
part,  under  U.S.  federal  and  state  healthcare  programs  such  as  Medicare  and  Medicaid.  A  person  or
entity does not need to have actual knowledge of the statute or specific intent to violate it in order to
have committed a violation;

● the  U.S.  federal  civil  and  criminal  false  claims  and  civil  monetary  penalties  laws,  including  the  civil
False  Claims  Act,  which,  among  other  things,  impose  criminal  and  civil  penalties,  including  through
civil  whistleblower  or  qui  tam  actions,  against  individuals  or  entities  for  knowingly  presenting,  or
causing to be presented, to the U.S. federal government, claims for payment or approval that are false or
fraudulent, knowingly making, using or causing to be made or used, a false record or statement material
to a false or fraudulent claim, or from knowingly making a false statement to avoid, decrease or conceal
an obligation to pay money to the U.S. federal government. In addition, the government may assert that
a claim including items and services resulting from a violation of the U.S. federal Anti-Kickback Statute
constitutes a false or fraudulent claim for purposes of the False Claims Act;

● the U.S. federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which created
additional  federal  criminal  statutes  which  prohibit,  among  other  things,  knowingly  and  willfully
executing, or attempting to execute, a scheme to defraud any healthcare benefit program, or knowingly
and  willfully  falsifying,  concealing  or  covering  up  a  material  fact  or  making  any  materially  false
statement,  in  connection  with  the  delivery  of,  or  payment  for,  healthcare  benefits,  items  or  services.
Similar  to  the  U.S.  federal  Anti-Kickback  Statute,  a  person  or  entity  does  not  need  to  have  actual
knowledge of the statute or specific intent to violate it in order to have committed a violation;

● the FDCA, which prohibits, among other things, the adulteration or misbranding of drugs, biologics and

medical devices;

● the U.S. Public Health Service Act, which prohibits, among other things, the introduction into interstate

commerce of a biological product unless a biologics license is in effect for that product;

73

Table of Contents

● federal consumer protection and unfair competition laws, which broadly regulate marketplace activities

and activities that potentially harm consumers;

● the  U.S.  Physician  Payments  Sunshine  Act  and  its  implementing  regulations,  which  requires  certain
manufacturers of drugs, devices, biologics and medical supplies that are reimbursable under Medicare,
Medicaid,  or  the  Children’s  Health  Insurance  Program,  with  specific  exceptions,  to  report  annually  to
the  government  information  related  to  certain  payments  and  other  transfers  of  value  to  physicians
(defined to include doctors, dentists, optometrists, podiatrists and chiropractors), certain non-physician
practitioners  (physician  assistants,  nurse  practitioners,  clinical  nurse  specialists,  certified  nurse
anesthetists, anesthesiologist assistants and certified nurse midwives), and teaching hospitals, as well as
ownership and investment interests held by physicians and their immediate family members;

● analogous U.S. state laws and regulations, including: state anti-kickback and false claims laws, which
may  apply  to  our  business  practices,  including  but  not  limited  to,  research,  distribution,  sales  and
marketing arrangements and claims involving healthcare items or services reimbursed by any third-party
payor, including private insurers; state laws that require pharmaceutical companies to comply with the
pharmaceutical  industry’s  voluntary  compliance  guidelines  and  the  relevant  compliance  guidance
promulgated  by  the  U.S.  federal  government,  or  otherwise  restrict  payments  that  may  be  made  to
healthcare  providers  and  other  potential  referral  sources;  state  laws  and  regulations  that  require  drug
manufacturers to file reports relating to pricing and marketing information, which requires tracking gifts
and other remuneration and items of value provided to healthcare professionals and entities; and state
and local laws that require the registration of pharmaceutical sales representatives; and

● similar healthcare laws and regulations in the UK, EU and other jurisdictions, including reporting

requirements detailing interactions with and payments to healthcare providers.

Ensuring that our internal operations and future business arrangements with third parties comply with applicable
healthcare laws and regulations will involve substantial costs. It is possible that governmental authorities will conclude
that  our  business  practices  do  not  comply  with  current  or  future  statutes,  regulations,  agency  guidance  or  case  law
involving  applicable  fraud  and  abuse  or  other  healthcare  laws  and  regulations.  If  our  operations  are  found  to  be  in
violation of any of the laws described above or any other governmental laws and regulations that may apply to us, we
may be subject to significant penalties, including civil, criminal and administrative penalties, damages, fines, exclusion
from government-funded healthcare programs, such as Medicare and Medicaid or similar programs in other countries or
jurisdictions,  integrity  oversight  and  reporting  obligations  to  resolve  allegations  of  non-compliance,  disgorgement,
individual imprisonment, contractual damages, reputational harm, diminished profits and the curtailment or restructuring
of our operations. If any of the physicians or other providers or entities with whom we expect to do business are found to
not be in compliance with applicable laws, they may be subject to criminal, civil or administrative sanctions, including
exclusions from government funded healthcare programs and imprisonment, which could affect our ability to operate our
business.  Further,  defending  against  any  such  actions  can  be  costly,  time-consuming  and  may  require  significant
personnel  resources.  Therefore,  even  if  we  are  successful  in  defending  against  any  such  actions  that  may  be  brought
against us, our business may be impaired.

We  are  subject  to  government  laws,  regulations,  standards  and  other  legal  obligations  relating  to  data  privacy  and
security.  Compliance  with  these  requirements  is  complex  and  costly  and  our  actual  or  perceived  failures  to  comply
could materially harm our business.

The global data protection landscape is rapidly evolving, and we are or may become subject to numerous state,
federal and foreign laws, requirements and regulations governing the collection, use, disclosure, retention and security of
personal information.

74

Table of Contents

In  the  U.S.,  HIPAA  imposes  privacy,  security  and  breach  reporting  obligations  with  respect  to  individually
identifiable health information upon “covered entities” (health plans, health care clearinghouses and certain health care
providers),  and  their  respective  business  associates,  individuals  or  entities  that  create,  receive,  maintain  or  transmit
protected health information in connection with providing a service for or on behalf of a covered entity, as well as their
covered subcontractors. Most healthcare providers, including research institutions and other vendors from which we may
obtain patient health information, are subject to privacy and security regulations promulgated under HIPAA.  We do not
believe  that  we  are  currently  acting  as  a  covered  entity  or  business  associate  under  HIPAA  and  thus  are  not  directly
subject to its requirements or penalties.  However, depending on the facts and circumstances, we could face substantial
criminal penalties if we knowingly receive individually identifiable health information from a HIPAA-covered healthcare
provider  or  research  institution  that  has  not  satisfied  HIPAA’s  requirements  for  disclosure  of  individually  identifiable
health information.  

In addition, certain state laws govern the privacy and security of health information in certain circumstances, some
of which are more stringent than HIPAA and many of which differ from each other in significant ways and may not have
the same effect, thus complicating compliance efforts. Failure to comply with these laws, where applicable, can result in
the imposition of significant civil and/or criminal penalties and private litigation. Further, we may also be subject to other
state  laws  governing  the  privacy,  processing  and  protection  of  personal  information.    For  example,  the  California
Consumer Privacy Act, or CCPA, confers individual privacy rights for California consumers (as such term is defined in
the law) and places increased privacy and security obligations on entities handling personal information of consumers or
households. The CCPA provides for civil penalties for violations, as well as a private right of action for data breaches that
is  expected  to  increase  data  breach  litigation.  Further,  the  California  Privacy  Rights  Act,  or  the  CPRA,  was  passed  in
California  in  November  2020.  The  CPRA  significantly  amends  the  CCPA  and  will  impose  additional  data  protection
obligations  on  covered  businesses,  including  additional  consumer  rights  processes,  limitations  on  data  uses,  new  audit
requirements for higher risk data, and opt outs for certain uses of sensitive data. It will also create a new California data
protection  agency  authorized  to  issue  substantive  regulations  and  could  result  in  increased  privacy  and  information
security enforcement. The majority of the provisions will go into effect on January 1, 2023, and additional compliance
investment and potential business process changes may be required. The CCPA, the CPRA and other domestic privacy
and data protection laws and regulations may increase our compliance costs and potential liability.

Our operations abroad may also be subject to increased scrutiny or attention from data protection authorities.  For
example, the GDPR imposes stringent requirements for processing the personal data of individuals within the European
Economic Area, or EEA, which consists of the 27 EU member states plus Norway, Lichtenstein and Iceland.  Companies
that  must  comply  with  the  GDPR  face  increased  compliance  obligations  and  risk,  including  more  robust  regulatory
enforcement of data protection requirements and potential fines for noncompliance of up to €20 million or up to 4% of
the  total  worldwide  annual  turnover  of  the  preceding  financial  year,  whichever  is  higher,  and  other  administrative
penalties.  

Among other requirements, the GDPR regulates transfers of personal data subject to the GDPR to third countries
that have not been found to provide adequate protection to such personal data, including the U.S. In July 2020, the Court of
Justice of the European Union, or CJEU, limited how organizations could lawfully transfer personal data from the EEA to
the U.S. by invalidating the Privacy Shield for purposes of international transfers and imposing further restrictions on the
use  of  standard  contractual  clauses  (a  standard  form  of  contract  approved  by  the  European  Commission  as  an  adequate
personal data transfer mechanism, and potential alternative to the Privacy Shield), or SCCs.  The European Commission
issued revised SCCs on June 4, 2021 to account for the decision of the CJEU and recommendations made by the European
Data  Protection  Board.    The  revised  SCCs  must  be  used  for  relevant  new  data  transfers  from  September  27,  2021.
Arrangements  using  the  existing  standard  contractual  clauses  must  be  migrated  to  the  revised  clauses  by  December  27,
2022.The new SCCs apply only to the transfer of personal data outside of the EEA and not the UK; the UK’s Information
Commission’s Office launched a public consultation on its draft revised data transfer mechanisms in August 2021 and laid
its proposal before the UK Parliament, with the UK SCC’s expected to come into force in March 2022, with a two-year
grace period. There is some uncertainty around whether the revised clauses can be used for all types of data transfers,

75

Table of Contents

particularly  whether  they  can  be  relied  on  for  data  transfers  to  non-EEA  entities  subject  to  the  GDPR.   As  supervisory
authorities issue further guidance on personal data export mechanisms, including circumstances where the SCCs cannot be
used, and/or start taking enforcement action, we could suffer additional costs, complaints and/or regulatory investigations
or fines, and/or if we are otherwise unable to transfer personal data between and among countries and regions in which we
operate,  it  could  affect  the  manner  in  which  we  provide  our  services,  the  geographical  location  or  segregation  of  our
relevant systems and operations, and could adversely affect our financial results.

Further, since the beginning of 2021, after the end of the transition period following the UK’s departure from the
EU, we are also subject to the UK data protection regime, which imposes separate but similar obligations to those under the
GDPR and comparable penalties, including fines of up to £17.5 million or 4% of a noncompliant company’s global annual
revenue for the preceding financial year, whichever is greater. As we continue to expand into other foreign countries and
jurisdictions, we may be subject to additional laws and regulations that may affect how we conduct business.

Although  we  work  to  comply  with  applicable  laws,  regulations  and  standards,  as  well  as  our  contractual
obligations and other legal obligations, relating to data privacy and security, these requirements are evolving and may be
modified,  interpreted  and  applied  in  an  inconsistent  manner  from  one  jurisdiction  to  another,  and  may  conflict  with  one
another or other legal obligations with which we must comply. Any failure or perceived failure by us or our employees,
representatives,  contractors,  consultants,  collaborators,  or  other  third  parties  to  comply  with  such  requirements  or
adequately  address  privacy  and  security  concerns,  even  if  unfounded,  could  result  in  additional  cost  and  liability  to  us,
damage our reputation, and adversely affect our business and results of operations.

We are subject to environmental, health and safety laws and regulations, and we may become exposed to liability
and substantial expenses in connection with environmental compliance or remediation activities.

Our  operations,  including  our  development,  testing  and  manufacturing  activities,  are  subject  to  numerous
environmental,  health  and  safety  laws  and  regulations.  These  laws  and  regulations  govern,  among  other  things,  the
controlled use, handling, release and disposal of and the maintenance of a registry for, hazardous materials and biological
materials, such as chemical solvents, human cells, carcinogenic compounds, mutagenic compounds and compounds that
have a toxic effect on reproduction, laboratory procedures and exposure to blood-borne pathogens. If we fail to comply
with such laws and regulations, we could be subject to fines or other sanctions. Additionally, if environmental regulations
are  enacted  that  restrict  our  ability  to  use  one  or  more  of  the  materials  or  compounds  necessary  to  manufacture  our
product candidates, and we are unable to find suitable alternatives or such alternatives require additional testing or will
extend the manufacturing timeline, then we may be unable to manufacture our product candidates in a timely manner, or
at all.

We  may  be  subject  to  environmental  liability  inherent  in  our  current  and  historical  activities,  including  liability
relating  to  releases  of  or  exposure  to  hazardous  or  biological  materials.  Environmental,  health  and  safety  laws  and
regulations  are  becoming  more  stringent.  We  may  be  required  to  incur  substantial  expenses  in  connection  with  future
environmental  compliance  or  remediation  activities,  in  which  case,  our  production  efforts  or  those  of  our  third-party
manufacturers may be interrupted or delayed.

Due to our international operations, we are subject to anti-corruption laws, as well as export control laws, customs
laws, sanctions laws and other laws governing our operations. If we fail to comply with these laws, we could be subject
to civil or criminal penalties, other remedial measures and legal expenses.

Our operations are subject to anti-corruption laws, including the UK Bribery Act 2010, or Bribery Act; the U.S.
Foreign Corrupt Practices Act, or FCPA; and other anti-corruption laws that apply in countries where we do business and
may do business in the future. The Bribery Act, FCPA, and these other laws generally prohibit us, our officers and our
employees and intermediaries from bribing, being bribed by, or providing prohibited payments or anything else of value
to government officials or other persons to obtain or retain business or gain some other business advantage. We may in
the future operate in jurisdictions that pose a high risk of potential Bribery Act or FCPA violations, and we may

76

Table of Contents

participate  in  collaborations  and  relationships  with  third  parties  whose  actions  could  potentially  subject  us  to  liability
under the Bribery Act, FCPA, or local anti-corruption laws. In addition, we cannot predict the nature, scope, or effect of
future  regulatory  requirements  to  which  any  of  our  international  operations  might  be  subject  or  the  manner  in  which
existing laws might be administered or interpreted.

We  also  are  subject  to  other  laws  and  regulations  governing  any  international  operations,  including  regulations
administered by the governments of the UK and the U.S., and authorities in the EU, including applicable export control
regulations, economic sanctions on countries and persons, customs requirements and currency exchange regulations, or,
collectively, the Trade Control laws.

There  is  no  assurance  that  we  will  be  completely  effective  in  ensuring  our  compliance  with  all  applicable  anti-
corruption laws, including the Bribery Act, the FCPA, or other legal requirements, including Trade Control laws. If we
are not in compliance with the Bribery Act, the FCPA, and other anti-corruption laws or Trade Control laws, we may be
subject to criminal and civil penalties, disgorgement, and other sanctions and remedial measures and legal expenses. Any
investigation of any potential violations of the Bribery Act, the FCPA, other anti-corruption laws, or Trade Control laws
by UK, U.S., or other authorities, even if it is ultimately determined that we did not violate such laws, could be costly and
time-consuming, require significant personnel resources, and harm our reputation.

We  have  established  internal  controls  to  detect  and  prevent  violations  of  applicable  anti-corruption  laws  and  to
remedy any weaknesses identified. There can be no assurance, however, that the policies and procedures will be followed
at  all  times  or  effectively  detect  and  prevent  violations  of  the  applicable  laws  by  one  or  more  of  our  employees,
consultants, agents, or collaborators and, as a result, we could be subject to fines, penalties, or prosecution.

Risks Related to Commercialization

We face significant competition in an environment of rapid technological change, and there is a possibility that our
competitors may achieve regulatory approval before us or develop therapies that are safer or more advanced or
effective than ours, which may harm our financial condition and our ability to successfully market or commercialize
any product candidates we may develop.

The development and commercialization of new gene therapy products is highly competitive. Moreover, the gene
regulation  and  manufacturing  fields  are  characterized  by  rapidly  changing  technologies  and  a  strong  emphasis  on
intellectual  property.  We  may  face  competition  with  respect  to  any  product  candidates  that  we  may  seek  to  develop  or
commercialize  in  the  future  from  major  pharmaceutical  companies,  specialty  pharmaceutical  companies,  and
biotechnology companies worldwide. Potential competitors also include academic institutions, government agencies, and
other public and private research organizations that conduct research, seek patent protection, and establish collaborative
arrangements for research, development, manufacturing, and commercialization.

There are a number of large pharmaceutical and biotechnology companies that currently market and sell products
or  are  pursuing  the  development  of  products  for  the  treatment  of  the  disease  indications  for  which  we  have  research
programs, including inherited retinal diseases and neurodegenerative diseases. Some of these competitive products and
therapies are based on scientific approaches that are similar to our approach, and others are based on entirely different
approaches. Differences in the scientific approaches may create confusion or uncertainty among clinical trial investigators
or patient populations, which could delay or hinder enrollment or initiation of our clinical trials.

Our platform and products focus on the development of gene therapies and gene regulation technology. In 2017,
the  FDA  approved  the  first  gene  treatment  for  RPE65-associated  retinal  disease,  Luxturna,  a  commercially  available
product developed by Spark Therapeutics, Inc., which was purchased by Roche. There are a number of other companies
developing  ocular  gene  therapy  products,  including  Applied  Genetic  Technologies  Corporation,  Biogen,  Inc.  and  4D
Molecular Therapeutics, Inc. There are a number of companies developing gene therapy products for neurodegenerative
diseases, including Voyager Therapeutics, Inc., Brain Neurotherapy Bio, Inc., Axovant Gene Therapies Ltd. and Prevail

77

Table of Contents

Therapeutics Inc. (which was purchased by Eli Lilly and Company). In addition to competition from other gene therapies,
any products we may develop may also face competition from other types of therapies, such as small molecule, antibody,
or protein therapies. Many of our current or potential competitors, either alone or with their collaboration partners, have
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  gene  therapy  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, manufacturing and management personnel and establishing clinical trial sites and patient enrollment in clinical
trials, as well as in acquiring technologies complementary to, or necessary for, our programs. 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,
limiting demand or the price we are able to charge, or that could render any products that we may develop obsolete or
non-competitive.  Our  competitors  also  may  obtain  FDA,  MHRA  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,  as  a  result  of  the  expiration  or  successful  challenge  of  our  patent
rights,  we  could  face  more  litigation  with  respect  to  the  validity  and/or  scope  of  patents  relating  to  our  competitors’
products.

The successful commercialization of our product candidates will depend in part on the extent to which
governmental authorities and health insurers establish coverage, adequate reimbursement levels and pricing
policies. Failure to obtain or maintain coverage and adequate reimbursement for our product candidates, if
approved, could limit our ability to market those products and decrease our ability to generate revenue.

The  availability  of  coverage  and  adequacy  of  reimbursement  by  governmental  healthcare  programs  such  as
Medicare and Medicaid, private health insurers and other third-party payors are essential for most patients to be able to
afford medical services and pharmaceutical products such as our product candidates, assuming FDA approval. Our ability
to  achieve  acceptable  levels  of  coverage  and  reimbursement  for  our  products  or  procedures  using  our  products  by
governmental authorities, private health insurers and other organizations will have an effect on our ability to successfully
commercialize  our  product  candidates.  Obtaining  coverage  and  adequate  reimbursement  for  our  products  may  be
particularly  difficult  because  of  the  higher  prices  often  associated  with  drugs  administered  under  the  supervision  of  a
physician. Separate reimbursement for the product itself or the treatment or procedure in which our product is used may
not be available. A decision by a third-party payor not to cover or separately reimburse for our products or procedures
using our products, could reduce physician utilization of our products if approved. Assuming there is such coverage by a
third-party  payor,  the  resulting  reimbursement  payment  rates  may  not  be  adequate  or  may  require  co-payments  that
patients find unacceptably high. We cannot be sure that coverage and reimbursement in the United States, the UK, the EU
or elsewhere will be available for our product candidates or any product that we may develop, and any reimbursement
that may become available may not be adequate or may be decreased or eliminated in the future.

Third-party  payors  increasingly  are  challenging  prices  charged  for  pharmaceutical  products  and  services,  and
many  third-party  payors  may  refuse  to  provide  coverage  and  reimbursement  for  particular  drugs  or  biologics  when  an
equivalent  generic  drug,  biosimilar  or  a  less  expensive  therapy  is  available.  It  is  possible  that  a  third-party  payor  may
consider our product candidates as substitutable and only offer to reimburse patients for the less expensive product. Even
if we show improved efficacy or improved convenience of administration with our product candidates, pricing of existing
third-party  therapeutics  may  limit  the  amount  we  will  be  able  to  charge  for  our  product  candidates.  These  payors  may
deny or revoke the reimbursement status of a given product or establish prices for new or existing marketed products at
levels  that  are  too  low  to  enable  us  to  realize  an  appropriate  return  on  our  investment  in  our  product  candidates.  If
reimbursement is not available or is available only at limited levels, we may not be able to successfully commercialize
our product candidates and may not be able to obtain a satisfactory financial return on our product candidates.

There is significant uncertainty related to the insurance coverage and reimbursement of newly-approved products.

In the United States, third-party payors, including private and governmental payors, such as the Medicare and Medicaid

78

Table of Contents

programs,  play  an  important  role  in  determining  the  extent  to  which  new  drugs  and  biologics  will  be  covered.  The
Medicare and Medicaid programs increasingly are used as models in the United States for how private payors and other
governmental payors develop their coverage and reimbursement policies for drugs and biologics. Some third-party payors
may  require  pre-approval  of  coverage  for  new  or  innovative  devices  or  drug  therapies  before  they  will  reimburse
healthcare  providers  who  use  such  therapies.  We  cannot  predict  at  this  time  what  third-party  payors  will  decide  with
respect to the coverage and reimbursement for our product candidates.

No  uniform  policy  for  coverage  and  reimbursement  for  products  exists  among  third-party  payors  in  the  United
States. Therefore, coverage and reimbursement for products can differ significantly from payor to payor. As a result, the
coverage determination process is often a time-consuming and costly process that will require us to provide scientific and
clinical  support  for  the  use  of  our  product  candidates  to  each  payor  separately,  with  no  assurance  that  coverage  and
adequate reimbursement will be applied consistently or obtained in the first instance. Furthermore, rules and regulations
regarding reimbursement change frequently, in some cases on short notice.

Outside the United States, international operations are generally subject to extensive governmental price controls
and other market regulations, and we believe the increasing emphasis on cost-containment initiatives in Europe and other
countries have and will continue to put pressure on the pricing and usage of our product candidates. In many countries,
the prices of medical products are subject to varying price control mechanisms as part of national health systems. Other
countries  allow  companies  to  fix  their  own  prices  for  medical  products  but  monitor  and  control  company  profits.
Additional  foreign  price  controls  or  other  changes  in  pricing  regulation  could  restrict  the  amount  that  we  are  able  to
charge for our product candidates. Accordingly, in markets outside the United States, the reimbursement for our product
candidates may be reduced compared with the United States and may be insufficient to generate commercially-reasonable
revenue and profits.

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  product  candidates.  We
expect  to  experience  pricing  pressures  in  connection  with  the  sale  of  our  product  candidates  due  to  the  trend  toward
managed health care, the increasing influence of health maintenance organizations and additional legislative changes. The
downward pressure on healthcare costs in general, particularly prescription drugs and biologics and surgical procedures
and  other  treatments,  has  become  intense.  As  a  result,  increasingly  high  barriers  are  being  erected  to  the  entry  of  new
products.

Even if our product candidates receive marketing approval, they may fail to achieve market acceptance by
physicians, patients, third-party payors or others in the medical community necessary for commercial success.

If  our  product  candidates  receive  marketing  approval,  they  may  nonetheless  fail  to  gain  sufficient  market
acceptance  by  physicians,  patients,  third-party  payors  and  others  in  the  medical  community.  If  they  do  not  achieve  an
adequate  level  of  acceptance,  we  may  not  generate  significant  product  revenues  or  become  profitable.  The  degree  of
market  acceptance  of  our  product  candidates,  if  approved  for  commercial  sale,  will  depend  on  a  number  of  factors,
including but not limited to:

● the efficacy and potential advantages compared to alternative treatments;

● effectiveness of sales and marketing efforts;

● the cost of treatment in relation to alternative treatments, including any similar generic treatments;

● our ability to offer our product candidates for sale at competitive prices;

● the convenience and ease of administration;

79

Table of Contents

● the willingness of the target patient population to try new therapies and of physicians to prescribe these

therapies;

● the strength of marketing and distribution support, and publicity concerning our products or competing

products and treatments;

● the timing of market introduction of competitive products;

● the availability of third-party coverage and adequate reimbursement;

● product labeling or product insert requirements of the FDA, MHRA, EMA or other regulatory
authorities, including any limitations or warnings contained in a product’s approved labeling;

● the prevalence and severity of any side effects; and

● any restrictions on the use of our product together with other medications.

Because  we  expect  sales  of  our  product  candidates,  if  approved,  to  generate  substantially  all  of  our  product
revenues  for  a  substantial  period,  the  failure  of  these  product  candidates  to  find  market  acceptance  would  harm  our
business and could require us to seek additional financing.

If we are unable to establish sales, marketing and distribution capabilities either on our own or in collaboration
with third parties, we may not be successful in commercializing our product candidates or realizing the synergies in
the target indications of our programs, even if they are approved.

We  do  not  have  any  infrastructure  for  the  sales,  marketing  or  distribution  of  our  products,  and  the  cost  of
establishing  and  maintaining  such  an  organization  may  exceed  the  cost-effectiveness  of  doing  so  or  we  may  seek
collaborative  arrangements  or  external  funding  to  commercialize  our  product  candidates.  For  example,  Janssen  will  be
solely responsible for the commercialization of botaretigene sparoparvovec, AAV-CNGB3 and AAV-CNGA3 pursuant to
our  Collaboration  Agreement  with  them.  There  are  significant  expenses  and  risks  involved  with  establishing  our  own
sales, marketing and distribution capabilities, including our ability to hire, retain and appropriately incentivize qualified
individuals,  generate  sufficient  sales  leads,  provide  adequate  training  to  sales  and  marketing  personnel,  and  effectively
manage a geographically dispersed sales and marketing team. Any failure or delay in the development of such capabilities
could  delay  any  product  launch,  which  would  adversely  impact  the  commercialization  of  our  product  candidates.
Additionally,  if  any  commercial  launch  is  delayed  or  does  not  occur  for  any  reason,  we  would  have  prematurely  or
unnecessarily  incurred  these  commercialization  expenses.  This  may  be  costly,  and  our  investment  would  be  lost  if  we
cannot retain or reposition our sales and marketing personnel.

We  may  not  have  the  resources  in  the  foreseeable  future  to  allocate  to  the  sales  and  marketing  of  our  product
candidates in certain markets. Therefore, our future sales in these markets will largely depend on our ability to enter into
and maintain collaborative relationships for such capabilities, the collaborator’s strategic interest in the product and such
collaborator’s ability to successfully market and sell the product. We may pursue collaborative arrangements regarding
the sale and marketing of AAV-GAD, AAV-RPE65, AAV-hAQP1 or other future gene therapy programs, if approved, for
the United States and/or certain markets overseas; however, there can be no assurance that we will be able to establish or
maintain such collaborative arrangements, or if able to do so, that they will have effective sales forces.

If  we  are  unable  to  build  our  own  sales  force  or  negotiate  or  maintain  a  collaborative  relationship  for  the
commercialization of our product candidates, we may be forced to delay potential commercialization or reduce the scope
of  our  sales  or  marketing  activities.  If  we  elect  to  increase  our  expenditures  to  fund  commercialization  activities
internationally, we will need to obtain additional capital, which may not be available to us on acceptable terms, or at all.

80

Table of Contents

We could enter into arrangements with collaborative partners at an earlier stage than otherwise would be ideal and we
may be required to relinquish rights or otherwise agree to terms unfavorable to us, any of which may have an adverse
effect on our business, operating results and prospects.

Some  indications  targeted  by  our  ophthalmology  programs  are  rare,  but  we  anticipate  realizing  synergies  in
commercializing  our  IRD  product  candidates,  should  they  be  approved.  Failure  to  realize  synergies  in  our  sales,
marketing and distribution efforts may harm our commercialization efforts.

If  we  or  our  collaborators  are  unable  to  establish  or  maintain  adequate  sales,  marketing  and  distribution
capabilities, we will not be successful in commercializing our product candidates and may not become profitable and may
incur significant additional losses. We will be competing with many companies that currently have extensive and well-
funded marketing and sales operations. Without an internal team or the support of a third party to perform marketing and
sales functions, we may be unable to compete successfully against these more established companies.

If any of our products are commercialized outside of the United States, the UK or the EU, a variety of risks
associated with international operations could adversely affect our business.

If  any  of  our  products  are  approved  for  commercialization,  we  have  entered  into,  and  intend  to  enter  into,
agreements with third parties to market them in certain jurisdictions outside the United States, the UK and the EU, such
as under our Collaboration Agreement with Janssen. We expect that we and our third-party collaborators will be subject
to additional risks related to international pharmaceutical operations, including:

● different regulatory requirements for drug and biologic approvals and rules governing drug and biologic

commercialization in foreign countries;

● tighter restrictions on privacy and the collection and use of patient data;

● reduced or loss of protection for intellectual property rights;

● foreign reimbursement, pricing and insurance regimes;

● unexpected changes in tariffs, trade barriers and regulatory requirements;

● economic weakness, including inflation, or political instability in particular foreign economies and

markets;

● foreign currency fluctuations, which could result in increased operating expenses and reduced revenues,

and other obligations incident to doing business in another country;

● business  interruptions  resulting  from  geopolitical  actions,  including  war  and  terrorism,  or  widespread
health  emergencies,  such  as  the  COVID-19  pandemic,  or  natural  disasters  including  earthquakes,
typhoons, floods and fires, or from economic or political instability;

● greater difficulty with enforcing our contracts;

● potential noncompliance with the FCPA, the Bribery Act and similar anti-bribery and anticorruption

laws in other jurisdictions;

● production shortages resulting from any events affecting raw material supply or manufacturing

capabilities abroad; and

81

Table of Contents

● workforce  uncertainty  in  countries  where  labor  unrest  is  more  common  than  in  the  United  States  and

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

We  have  no  prior  experience  in  these  areas  and  we  may  rely  on  other  third  parties  to  help  us  establish  our
international  commercialization  operations.  In  addition,  there  are  complex  regulatory,  tax,  labor  and  other  legal
requirements  imposed  by  individual  countries  in  Europe  with  which  we  and  our  third-party  collaborators  will  need  to
comply. If we are unable to successfully manage the challenges of international expansion and operations, our business
and operating results could be harmed.

Any product candidates for which we intend to seek approval as biologic products may face competition sooner
than anticipated.

The ACA includes a subtitle called the Biologics Price Competition and Innovation Act of 2009, or BPCIA, which
created an abbreviated approval pathway for biological products that are biosimilar to or interchangeable with an FDA-
licensed reference biological product. Under the BPCIA, an application for a biosimilar product may not be submitted to
the  FDA  until  four  years  following  the  date  that  the  reference  product  was  first  licensed  by  the  FDA.  In  addition,  the
approval  of  a  biosimilar  product  may  not  be  made  effective  by  the  FDA  until  12  years  from  the  date  on  which  the
reference  product  was  first  licensed  by  the  FDA.  During  this  12-year  period  of  exclusivity,  another  company  may  still
market  a  competing  version  of  the  reference  product  if  the  FDA  approves  a  full  BLA  for  the  competing  product
containing the sponsor’s own pre-clinical data and data from adequate and well-controlled clinical trials to demonstrate
the safety, purity and potency of the other company’s product.

We believe that any of our product candidates approved as a biological product under a BLA should qualify for
the  12-year  period  of  exclusivity.  However,  there  is  a  risk  that  any  of  our  product  candidates  approved  as  a  biological
product under a BLA would not qualify for the 12-year period of exclusivity or that this exclusivity could be shortened
due  to  Congressional  action  or  otherwise,  or  that  the  FDA  will  not  consider  our  product  candidates  to  be  reference
products  for  competing  products,  potentially  creating  the  opportunity  for  generic  competition  sooner  than  anticipated.
Other aspects of the BPCIA, some of which may impact the BPCIA exclusivity provisions, have also been the subject of
recent litigation. Jurisdictions outside the United States have established abbreviated pathways for regulatory approval of
biological products that are biosimilar to earlier approved reference products. For example, the EU has had an established
regulatory  pathway  for  biosimilars  since  2006.  Moreover,  the  extent  to  which  a  biosimilar,  once  licensed,  will  be
substituted  for  any  one  of  our  reference  products  in  a  way  that  is  similar  to  traditional  generic  substitution  for  non-
biological  products  is  not  yet  clear,  and  will  depend  on  a  number  of  marketplace  and  regulatory  factors  that  are  still
developing.

If competitors are able to obtain marketing approval for biosimilars referencing our products, our products may

become subject to competition from such biosimilars, with the attendant competitive pressure and consequences.

Risks Related to Our Dependence on Third Parties

If our cGMP and GMP manufacturing facilities are unable to supply our product candidates for all of our current
preclinical, clinical and potential commercial needs, we will be forced to seek out third-party manufacturers. We
currently contract with third parties for the manufacture of plasmid used in producing our product candidates.
Relying on third parties increases the risk that we will not have sufficient quantities of such materials, product
candidates, or any medicines that we may develop and commercialize, or that such supply will not be available to us at
an acceptable cost, which could delay, prevent, or impair our development or commercialization efforts.

We produce our product candidates in our cGMP viral vector manufacturing facility completed in early 2018 and
we  completed  the  acquisition  of  the  buildings  for  our  second  cGMP  viral  vector  manufacturing  facility  and  our  first
cGMP plasmid and DNA production facility in Shannon, Ireland in January 2021 to expand our manufacturing and

82

Table of Contents

supply chain capabilities. However, if our current facility is damaged, suffers any form of delay or regulatory challenges,
we experience slowdowns or problems with the development and startup of our new facilities or we are unable to scale
our internal manufacturing capabilities to meet demand for our product candidates, we will need to contract with third-
party manufacturers to produce our product candidates. While we now have our own plasmid manufacturing capabilities
in our Shannon, Ireland facilities, we may also rely on third-party manufacturers from time to time for the manufacture of
plasmid used in the production of some of our product candidates. We do not have a long-term supply agreement with any
of the third-party manufacturers, and we purchase our required supply on a purchase order basis.

We and our third-party manufacturers may also encounter difficulties or delays in manufacturing of our product
candidates  or  the  plasmid  used  in  the  production  of  our  product  candidates.  Geopolitical  actions,  natural  disaster  or  a
widespread health emergency, such as the COVID-19 pandemic, could impact our supply chain. To the extent that we or
our third-party manufacturers are located in geographies affected by these matters, it may result in the temporary closing
of manufacturing facilities and may increase the costs associated with manufacturing our product candidates.

We  may  be  unable  to  establish  any  agreements  with  third-party  manufacturers  or  to  do  so  on  acceptable  terms.
Even if we are able to establish agreements with third-party manufacturers, reliance on third-party manufacturers entails
additional risks, including:

● the possible breach of the manufacturing agreement by the third party, including failure to provide

appropriate quantities in a timely manner;

● the possible termination or nonrenewal of the agreement by the third party at a time that is costly or

inconvenient for us; and

● reliance on the third party for regulatory compliance, quality assurance, safety, and pharmacovigilance

and related reporting.

We  and  our  third-party  manufacturers  may  not  be  able  to  comply  with  cGMP  regulations  or  similar  regulatory
requirements  that  might  be  required  by  the  FDA,  MHRA  or  EMA.  Our  failure,  or  the  failure  of  our  third-party
manufacturers,  to  comply  with  applicable  regulations  could  result  in  sanctions  being  imposed  on  us,  including  fines,
injunctions,  civil  penalties,  delays,  suspension  or  withdrawal  of  approvals,  license  revocations,  seizures  or  recalls  of
product candidates or medicines, operating restrictions, and criminal prosecutions, any of which could adversely affect
supplies of our candidates and harm our business, financial condition, results of operations, and prospects.

Any  therapies  that  we  may  develop  may  compete  with  other  product  candidates  and  products  for  access  to
manufacturing facilities. There are a limited number of manufacturers that operate under cGMP or similar regulations and
that  might  be  capable  of  manufacturing  for  us.  Any  performance  failure  on  the  part  of  our  existing  or  future
manufacturers could delay clinical development or marketing approval.

Our current and anticipated future dependence upon others for the manufacture of any product candidates we may
develop or any components required for the manufacture of our product candidates may adversely affect our future profit
margins and our ability to commercialize any product candidates that receive marketing approval on a timely and
competitive basis.

We have in the past, and may in the future, collaborate with third parties for the development, manufacture and
commercialization of our product candidates. We may not succeed in establishing and maintaining
collaborative relationships, which may significantly limit our ability to develop and commercialize our product
candidates successfully, if at all.

We have entered into collaboration agreements with third parties for the development and commercialization of
our product candidates, including our Collaboration Agreement with Janssen for the development and commercialization

83

Table of Contents

of  AAV-CNGB3,  AAV-CNGA3  and  botaretigene  sparoparvovec.  We  have  also  entered  into  a  manufacturing  research
collaboration  agreement  with  Janssen  to  further  develop  processes  for  manufacturing  AAV  viral  vectors.  We  may  seek
additional  collaborative  relationships  in  the  future.  Failure  to  obtain  a  collaborative  relationship  for  our  product
candidates may significantly impair their commercial potential. We also may need to enter into collaborative relationships
to provide funding to support our other research and development programs. The process of establishing and maintaining
collaborative relationships is difficult, time-consuming and involves significant uncertainty, such as:

● a collaboration partner may shift its priorities and resources away from our product candidates due to a

change in business strategies, or a merger, acquisition, sale or downsizing;

● a  collaboration  partner  may  seek  to  renegotiate  or  terminate  their  relationships  with  us  due  to
unsatisfactory clinical results, manufacturing issues, a change in business strategy, a change of control
or other reasons;

● a collaboration partner may cease development in therapeutic areas which are the subject of our strategic

collaboration;

● a collaboration partner may not devote sufficient capital or resources towards our product candidates;

● a collaboration partner may change the success criteria for a product candidate thereby delaying or

ceasing development of such candidate;

● a  significant  delay  in  initiation  of  certain  development  activities  by  a  collaboration  partner  will  also
delay  payment  of  milestones  tied  to  such  activities,  thereby  impacting  our  ability  to  fund  our  own
activities;

● a collaboration partner could develop a product that competes, either directly or indirectly, with our

product candidate;

● a collaboration partner with commercialization obligations may not commit sufficient financial or

human resources to the marketing, distribution or sale of a product;

● a collaboration partner with manufacturing responsibilities may encounter regulatory, resource or quality

issues and be unable to meet demand requirements;

● a collaboration partner may terminate a strategic alliance;

● a  dispute  may  arise  between  us  and  a  partner  concerning 

the  research,  development  or
commercialization  of  a  product  candidate  resulting  in  a  delay  in  milestones,  royalty  payments  or
termination  of  an  alliance  and  possibly  resulting  in  costly  litigation  or  arbitration  which  may  divert
management attention and resources; and

● a partner may use our products or technology in such a way as to make us subject to litigation with a

third party.

If  any  collaborator  fails  to  fulfill  its  responsibilities  in  a  timely  manner,  or  at  all,  our  research,  clinical
development, manufacturing or commercialization efforts related to that collaboration could be delayed or terminated, or
it  may  be  necessary  for  us  to  assume  responsibility  for  expenses  or  activities  that  would  otherwise  have  been  the
responsibility  of  our  collaborator.  If  we  are  unable  to  establish  and  maintain  collaborative  relationships  on  acceptable
terms or to successfully transition terminated collaborative agreements, we may have to delay or discontinue further

84

Table of Contents

development of one or more of our product candidates, undertake development and commercialization activities at our
own expense or find alternative sources of capital.

We have relied, and we expect to continue to rely, on third parties to conduct, supervise and monitor our preclinical
studies  and  clinical  trials,  and  if  these  third  parties  perform  in  an  unsatisfactory  manner,  our  business  could  be
harmed.

We  expect  to  rely  on  CROs,  clinical  trial  sites,  and  other  vendors  to  ensure  our  preclinical  studies  and  clinical
trials  are  conducted  properly  and  on  time.  We  may  also  engage  third  parties  such  as  clinical  data  management
organizations, medical institutions and clinical investigators to conduct or assist in our clinical trials or other preclinical
and  clinical  research  and  development  work.  While  we  will  have  agreements  governing  their  activities,  we  will  have
limited influence over their actual performance. We will control only certain aspects of our third-party service providers’
activities.  Nevertheless,  we  will  be  responsible  for  ensuring  that  each  of  our  preclinical  studies  and  clinical  trials  is
conducted in accordance with the applicable protocol, legal, quality, regulatory and scientific standards. Our reliance on
these  third  parties  does  not  relieve  us  of  our  regulatory  responsibilities.  For  example,  we  are  conducting  the  Phase  3
Lumeos clinical trial of botaretigene sparoparvovec for the treatment of patients with XLRP caused by mutations in the
RPGR gene at multiple clinical trial sites in North America and Europe. If any locations terminate the clinical trial, we
would be required to find another party to conduct any new trials. We may be unable to find a new party to conduct new
trials of our product candidates or obtain clinical supply of our product candidates or AAV vectors for such trials. If we
elect to internalize some or all activities related to the conduct of our preclinical studies or clinical trials that are currently
performed by our third-party service providers, or if we are required to do so due to a service provider’s termination of
our relationship, then we may be required to source additional technology and personnel in order to perform the relevant
activities.  We  may  be  unsuccessful  in  our  efforts  to  internalize  some  or  all  relevant  activities,  either  on  the  desired
timeline or at all.

Our third-party service providers are not our employees, and we are therefore unable to directly monitor whether
or not they devote sufficient time, attention, expertise and resources to our clinical and nonclinical programs. These third-
party service providers may also have relationships with other commercial entities, including our competitors, for whom
they may also be conducting clinical trials or other drug development activities that could harm our competitive position.
If  our  third-party  service  providers  do  not  successfully  carry  out  their  contractual  duties  or  obligations  or  fail  to  meet
expected deadlines, including as a result of the impact of the COVID-19 pandemic, or if the quality or accuracy of the
preclinical or 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 preclinical studies or clinical trials may be extended, delayed or terminated,
and  we  may  not  be  able  to  obtain  regulatory  approval  for,  or  successfully  commercialize  our  product  candidates.  As  a
result,  our  financial  results  and  the  commercial  prospects  for  our  product  candidates  could  be  harmed,  our  costs  could
increase, and our ability to generate revenues could be delayed.

If our relationship with any CROs terminate, we may not be able to enter into arrangements with alternative CROs
or do so on commercially reasonable terms. Switching or adding additional CROs involves substantial cost and requires
management time and focus. In addition, there is a natural transition period when a new CRO commences work. As a
result, delays occur, which can materially impact our ability to meet our desired clinical development timelines. Though
we  intend  to  carefully  manage  our  relationships  with  our  CROs,  there  can  be  no  assurance  that  we  will  not  encounter
challenges  or  delays  in  the  future  or  that  these  delays  or  challenges  will  not  have  an  adverse  impact  on  our  business,
financial condition and prospects.

85

Table of Contents

Risks Related to Intellectual Property

We depend on proprietary technology licensed from others. If we lose our existing licenses or are unable to acquire
or license additional proprietary rights from third parties, we may not be able to continue developing our product
candidates.

We currently in-license certain intellectual property from research institutions, universities and other third parties.
We may also enter into additional agreements, including license agreements, with other parties in the future that impose
diligence, development and commercialization timelines, milestone payments, royalties, insurance and other obligations
on us. If we fail to comply with our obligations to any of our current or future collaborators, our counterparties may have
the  right  to  terminate  these  agreements,  in  which  event  we  might  not  be  able  to  develop,  manufacture  or  market  any
product candidate that is covered by these agreements, which could adversely affect the value of the product candidate
being  developed  under  any  such  agreement.  Termination  of  these  agreements  or  reduction  or  elimination  of  our  rights
under these agreements may result in our having to negotiate new or reinstated agreements with less favorable terms, or
cause us to lose our rights under these agreements, including our rights to important intellectual property or technology.

We  may  rely  on  other  third  parties  from  whom  we  license  proprietary  technology  to  file  and  prosecute  patent
applications  and  maintain  patents  and  otherwise  protect  the  intellectual  property  we  license  from  them.  We  may  have
limited control over these activities or any other intellectual property that may be related to our in-licensed intellectual
property. For example, we cannot be certain that such activities by these licensors will be conducted in compliance with
applicable laws and regulations or will result in valid and enforceable patents and other intellectual property rights. We
may have limited control over the manner in which our licensors initiate an infringement proceeding against a third-party
infringer of the intellectual property rights, or defend certain of the intellectual property that may be licensed to us. It is
possible that the licensors’ infringement proceedings or defense activities may be less vigorous than if we conduct them
ourselves.  The  licensing  and  acquisition  of  third-party  intellectual  property  rights  is  a  competitive  practice,  and
companies that may be more established, or have greater resources than we do, may also be pursuing strategies to license
or acquire third-party intellectual property rights that we may consider necessary or attractive in order to commercialize
our product candidates. More established companies may have a competitive advantage over us due to their larger size
and cash resources or greater clinical development and commercialization capabilities. There can be no assurance that we
will  be  able  to  successfully  complete  such  negotiations  and  ultimately  acquire  the  rights  to  the  intellectual  property
surrounding the additional product candidates that we may seek to acquire. If we are unable to obtain and maintain patent
protection for our technology and product candidates or if the scope of the patent protection obtained is not sufficiently
broad, we may not be able to compete effectively in our markets.

If we are unable to obtain and maintain patent protection for our technology and product candidates or if the scope
of the patent protection obtained is not sufficiently broad, we may not be able to compete effectively in our markets.

We  rely  upon  a  combination  of  patents,  trade  secret  protection  and  confidentiality  agreements  to  protect  the
intellectual  property  related  to  our  proprietary  technologies,  product  candidate  development  programs  and  product
candidates. Our success depends in part on our ability to secure and maintain patent protection in the United States and
other  countries  with  respect  to  our  current  product  candidates  and  any  future  product  candidates  we  may  develop.  We
seek  to  protect  our  proprietary  position  by  filing  or  collaborating  with  our  licensors  to  file  patent  applications  in  the
United  States  and  abroad  related  to  our  proprietary  technologies,  development  programs  and  product  candidates.  The
patent prosecution process is expensive and time-consuming, and we may not be able to file and prosecute all necessary
or  desirable  patent  applications  at  a  reasonable  cost  or  in  a  timely  manner.  Moreover,  the  issuance,  scope,  validity,
enforceability and commercial value of our patent rights are uncertain.

It is also possible that we might fail to identify patentable aspects of our research and development output before it
is  too  late  to  obtain  patent  protection.  We  may  not  have  the  right  to  control  the  preparation,  filing,  and  prosecution  of
patent applications, or to maintain the rights to patents licensed to third parties. Therefore, these patents and patent

86

Table of Contents

applications may not be prosecuted and enforced in a manner consistent with the best interests of our business. The patent
applications that we own or in-license may fail to result in issued patents with claims that cover our proprietary products
and  technology,  including  current  product  candidates,  any  future  product  candidates  we  may  develop,  and  our  gene
regulation technology in the United States or in other countries, in whole or in part. Alternately, our existing patents and
any  future  patents  we  obtain  may  not  be  sufficiently  broad  to  prevent  others  from  using  our  technology  or  from
developing competing products and technologies. There is no assurance that all potentially relevant prior art relating to
our  patents  and  patent  applications  has  been  found,  which  can  prevent  a  patent  from  issuing  from  a  pending  patent
application  or  later  invalidate  or  narrow  the  scope  of  an  issued  patent.  For  example,  publications  of  discoveries  in  the
scientific  literature  often  lag  behind  the  actual  discoveries,  and  patent  applications  in  the  United  States  and  other
jurisdictions  are  typically  not  published  until  18  months  after  filing  or,  in  some  cases,  not  at  all.  Therefore,  we  cannot
know  with  certainty  whether  we  were  the  first  to  make  the  inventions  claimed  in  our  patents  or  pending  patent
applications,  or  that  we  were  the  first  to  file  for  patent  protection  of  such  inventions.  In  addition,  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.  Even  if  patents  do  successfully  issue  and  even  if  such  patents
cover our current product candidates, any future product candidates we may develop and our gene regulation technology,
third  parties  may  challenge  their  validity,  enforceability  or  scope  thereof,  which  may  result  in  such  patents  being
narrowed, invalidated, or held unenforceable. Any successful challenge to these patents or any other patents owned by or
licensed to us could deprive us of rights necessary for the successful commercialization of any of our product candidates
or  gene  regulation  technology.  Our  competitors  may  be  able  to  circumvent  our  patents  by  developing  similar  or
alternative  product  candidates  in  a  non-infringing  manner.  Further,  if  we  encounter  delays  in  regulatory  approvals,  the
period  of  time  during  which  we  could  market  a  product  candidate  and  our  gene  regulation  technology  under  patent
protection could be reduced.

If  the  patent  applications  we  hold  or  have  in-licensed  with  respect  to  our  development  programs  and  product
candidates  fail  to  issue,  if  their  validity,  breadth  or  strength  of  protection  is  threatened,  or  if  they  fail  to  provide
meaningful  exclusivity  for  any  of  our  current  or  future  product  candidates  or  technology,  it  could  dissuade  companies
from  collaborating  with  us  to  develop  product  candidates,  encourage  competitors  to  develop  competing  products  or
technologies  and  threaten  our  ability  to  commercialize  future  product  candidates.  Any  such  outcome  could  harm  our
business.

The  patent  position  of  biotechnology  and  pharmaceutical  companies  is  uncertain,  involves  complex  legal  and
factual  questions,  and  is  characterized  by  the  existence  of  large  numbers  of  patents  and  frequent  litigation  based  on
allegations of patent or other intellectual property infringement or violation. In addition, the laws of jurisdictions outside
the United States may not protect our rights to the same extent as the laws of the United States. Changes in either the
patent  laws  or  interpretation  of  the  patent  laws  in  the  United  States  and  other  countries  may  diminish  the  value  of  our
patents or narrow the scope of our patent protection.

The issuance of a patent is not conclusive as to its inventorship, scope, validity or enforceability, and our owned
and licensed patents may be challenged in the courts or patent offices in the United States and abroad. Such challenges
may  result  in  loss  of  exclusivity  or  freedom  to  operate  or  in  patent  claims  being  narrowed,  invalidated  or  held
unenforceable, in whole or in part, which could limit our ability to stop others from using or commercializing similar or
identical  technology  and  products,  or  limit  the  duration  of  the  patent  protection  of  our  technology  and  products.  Thus,
even  if  our  patent  applications  issue  as  patents,  they  may  not  issue  in  a  form  that  will  provide  us  with  meaningful
protection,  prevent  competitors  from  competing  with  us  or  otherwise  provide  us  with  any  competitive  advantage.
Moreover, patents have a limited lifespan. In the United States, the natural expiration of a patent is generally 20 years
after it is filed. Various extensions may be available; however, the life of a patent, and the protection it affords, is limited.
Without  patent  protection  for  our  current  or  future  product  candidates,  we  may  be  open  to  competition  from  generic
versions of such products. Given the amount of time required for the development, testing and regulatory review of new
product candidates, patents protecting such candidates might expire before or shortly after such candidates are

87

Table of Contents

commercialized. As a result, our owned and licensed patent portfolio may not provide us with sufficient rights to exclude
others from commercializing products similar or identical to ours.

Third parties may assert claims against us alleging infringement of their patents and proprietary rights, or we may
need to become involved in lawsuits to defend or enforce our patents, either of which could result in substantial costs
or loss of productivity, delay or prevent the development and commercialization of our product candidates, prohibit
our use of proprietary technology or sale of products or put our patents and other proprietary rights at risk.

Our commercial success depends, in part, upon our ability to develop, manufacture, market and sell our product
candidates without alleged or actual infringement, misappropriation or other violation of the patents and proprietary rights
of third parties. However, our research, development and commercialization activities may be subject to claims that we
infringe or otherwise violate patents or other intellectual property rights owned or controlled by third parties. Litigation
relating  to  infringement  or  misappropriation  of  patent  and  other  intellectual  property  rights  in  the  pharmaceutical  and
biotechnology industries is common, including patent infringement lawsuits, interferences, oppositions and inter partes
reviews,  and  reexamination  proceedings  before  the  U.S.  Patent  and  Trademark  Office,  or  USPTO,  and  corresponding
foreign  patent  offices.  In  addition,  many  companies  in  intellectual  property-dependent  industries,  including  the
biotechnology  and  pharmaceutical  industries,  have  employed  intellectual  property  litigation  as  a  means  to  gain  an
advantage over their competitors. Numerous U.S., EU and foreign issued patents and pending patent applications, which
are owned by third parties, exist in the fields in which we are developing product candidates, and as the biotechnology
and pharmaceutical industries expand and more patents are issued, the risk increases that our product candidates may be
subject  to  claims  of  infringement  of  the  intellectual  property  rights  of  third  parties.  Some  claimants  may  have
substantially greater resources than we do and may be able to sustain the costs of complex intellectual property litigation
to a greater degree and for longer periods of time than we could. In addition, patent holding companies that focus solely
on extracting royalties and settlements by enforcing patent rights may target us.

We may be subject to third-party claims including infringement, interference or derivation proceedings, post-grant
review and inter partes review before the USPTO or similar adversarial proceedings or litigation in other jurisdictions.
Even if such claims are without merit, a court of competent jurisdiction could hold that these third-party patents are valid,
enforceable  and  infringed,  and  the  holders  of  any  such  patents  may  be  able  to  block  our  ability  to  commercialize  the
applicable product candidate unless we obtained a license under the applicable patents, or until such patents expire or are
finally determined to be invalid or unenforceable. In addition, third parties may obtain patents in the future and claim that
use of our technologies infringes upon these patents, and the holders of any such patents may be able to prohibit our use
of those compositions, formulations, methods of treatment, prevention or use or other technologies, effectively blocking
our  ability  to  develop  and  commercialize  the  applicable  product  candidate  until  such  patent  expires  or  is  finally
determined to be invalid or unenforceable or unless we obtained a license.

In addition, defending such claims would cause us to incur substantial expenses and, if we are not successful in
defending such claims, it could cause us to pay substantial damages if we are found to be infringing a third party’s patent
rights.  These  damages  potentially  include  increased  damages  (possibly  treble  damages)  and  attorneys’  fees  if  we  are
found to have infringed such rights willfully. Further, if a patent infringement suit is brought against us or our third-party
service providers, our development, manufacturing or sales activities relating to the product or product candidate that is
the  subject  of  the  suit  may  be  delayed  or  terminated.  As  a  result  of  patent  infringement  claims,  or  in  order  to  avoid
potential infringement claims, we may choose to seek, or be required to seek, a license from the third party, which may
require  payment  of  substantial  royalties  or  fees,  or  require  us  to  grant  a  cross-license  under  our  intellectual  property
rights. These licenses may not be available on reasonable terms or at all. Even if a license can be obtained on reasonable
terms, the rights may be nonexclusive, which would give our competitors access to the same intellectual property rights.
If we are unable to enter into a license on acceptable terms, we could be prevented from commercializing one or more of
our product candidates, or forced to modify such product candidates, or to cease some aspect of our business operations,
which could harm our business significantly. We might also be forced to redesign or modify our product candidates so
that we no longer infringe the third-party intellectual property rights, which may result in significant cost or delay to us,
or which redesign or modification could be impossible or technically infeasible. Even if we were ultimately to prevail,

88

Table of Contents

any of these events could require us to divert substantial financial and management resources that we would otherwise be
able to devote to our business.

Competitors may infringe our patents or other intellectual property. If we or one of our licensors were to initiate
legal proceedings against a third party to enforce a patent covering one of our product candidates, the defendant could
counterclaim that our patent is invalid or unenforceable. If a defendant were to prevail on a legal assertion of invalidity or
unenforceability, we would lose at least part, and perhaps all, of the patent protection on our product candidates.

Even  if  resolved  in  our  favor,  litigation  or  other  legal  proceedings  relating  to  intellectual  property  claims  may
cause  us  to  incur  significant  expenses  and  could  distract  our  technical  and  management  personnel  from  their  normal
responsibilities.  In  addition,  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.  Such  litigation  or  proceedings  could  substantially  increase  our  operating  losses  and  reduce  our
resources  available  for  development  activities.  We  may  not  have  sufficient  financial  or  other  resources  to  adequately
conduct  such  litigation  or  proceedings.  Some  of  our  competitors  may  be  able  to  sustain  the  costs  of  such  litigation  or
proceedings  more  effectively  than  we  can  because  of  their  substantially  greater  financial  resources.  Uncertainties
resulting from the initiation and continuation of patent litigation or other proceedings could have an adverse effect on our
ability to compete in the marketplace.

We may not identify relevant third-party patents or may incorrectly interpret the relevance, scope or expiration of a
third-party patent, which might adversely affect our ability to develop, manufacture and market our product
candidates.

We cannot guarantee that any of our or our licensors’ patent searches or analyses, including but not limited to the
identification  of  relevant  patents,  analysis  of  the  scope  of  relevant  patent  claims  or  determination  of  the  expiration  of
relevant patents, are complete or thorough, nor can we be certain that we have identified each and every third-party patent
and  pending  application  in  the  United  States,  the  UK,  the  EU  and  elsewhere  that  is  relevant  to  or  necessary  for  the
commercialization  of  our  product  candidates  in  any  jurisdiction.  For  example,  in  the  United  States,  applications  filed
before  November  29,  2000  and  certain  applications  filed  after  that  date  that  will  not  be  filed  outside  the  United  States
remain  confidential  until  patents  issue.  Patent  applications  in  the  United  States,  the  UK,  the  EU  and  elsewhere  are
published  approximately  18  months  after  the  earliest  filing  for  which  priority  is  claimed,  with  such  earliest  filing  date
being commonly referred to as the priority date. Therefore, patent applications covering our product candidates could be
filed by others without our knowledge. Additionally, pending patent applications that have been published can, subject to
certain  limitations,  be  later  amended  in  a  manner  that  could  cover  our  product  candidates  or  the  use  of  our  product
candidates. After issuance, the scope of patent claims remains subject to construction as determined by an interpretation
of the law, the written disclosure in a patent and the patent’s prosecution history. Our interpretation of the relevance or the
scope  of  a  patent  or  a  pending  application  may  be  incorrect,  which  may  negatively  impact  our  ability  to  market  our
product candidates. We may incorrectly determine that our product candidates are not covered by a third-party patent or
may  incorrectly  predict  whether  a  third  party’s  pending  application  will  issue  with  claims  of  relevant  scope.  Our
determination  of  the  expiration  date  of  any  patent  in  the  United  States,  the  UK,  the  EU  or  elsewhere  that  we  consider
relevant may be incorrect, which may negatively impact our ability to develop and market our product candidates. Our
failure  to  identify  and  correctly  interpret  relevant  patents  may  negatively  impact  our  ability  to  develop  and  market  our
product candidates.

If we fail to correctly identify or interpret relevant patents, we may be subject to infringement claims. We cannot
guarantee that we will be able to successfully settle or otherwise resolve such infringement claims. If we fail in any such
dispute,  in  addition  to  being  forced  to  pay  monetary  damages,  we  may  be  temporarily  or  permanently  prohibited  from
commercializing  our  product  candidates.  We  might,  if  possible,  also  be  forced  to  redesign  our  product  candidates  in  a
manner that no longer infringes third-party intellectual property rights. Any of these events, even if we were ultimately to
prevail,  could  require  us  to  divert  substantial  financial  and  management  resources  that  we  would  otherwise  be  able  to
devote to our business.

89

Table of Contents

Changes in patent laws or patent jurisprudence could diminish the value of patents in general, thereby impairing
our ability to protect our product candidates.

Obtaining and enforcing patents in the biotechnology and genetic medicine industries involve both technological
complexity and legal complexity. In addition, the Leahy-Smith America Invents Act, or the AIA, which was passed in
September 2011, resulted in significant changes to the U.S. patent system.

An important change introduced by the AIA is that, as of March 16, 2013, the United States transitioned from a
“first-to-invent” to a “first-to-file” system for deciding which party should be granted a patent when two or more patent
applications are filed by different parties claiming the same invention. Under a “first-to-file” system, assuming the other
requirements for patentability are met, the first inventor to file a patent application generally will be entitled to a patent on
the  invention  regardless  of  whether  another  inventor  had  made  the  invention  earlier.  A  third  party  that  files  a  patent
application in the USPTO after that date but before us could therefore be awarded a patent covering an invention of ours
even if we made the invention before it was made by the third party. This will require us to be cognizant of the time from
invention  to  filing  of  a  patent  application  and  diligent  in  filing  patent  applications,  but  circumstances  could  prevent  us
from promptly filing patent applications on our inventions.

In addition, a third party may attempt to use the USPTO procedures to invalidate our patent claims that would not
have  been  invalidated  if  first  challenged  by  the  third  party  as  a  defendant  in  a  district  court  action  because  of  a  lower
evidentiary  standard  in  USPTO  proceedings  compared  to  the  evidentiary  standard  in  U.S.  federal  courts  necessary  to
invalidate a patent claim. An adverse determination in any such proceeding could reduce the scope of, or invalidate, our
owned or in-licensed patent rights, allow third parties to commercialize our technology or products and compete directly
with  us,  without  payment  to  us,  or  result  in  our  inability  to  manufacture  or  commercialize  products  without  infringing
third-party patent rights.

Additionally, the U.S. Supreme Court has ruled on several patent cases in recent years either narrowing the scope
of patent protection available in certain circumstances or weakening the rights of patent owners in certain situations, and
there  are  other  open  questions  under  patent  law  that  courts  have  yet  to  decisively  address.  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  Congress,  the  federal  courts  and  the
USPTO, the laws and regulations governing patents could change in unpredictable ways and could weaken our ability to
obtain  new  patents  or  to  enforce  our  existing  patents  and  patents  that  we  might  obtain  in  the  future.  In  addition,  the
European  patent  system  is  relatively  stringent  in  the  type  of  amendments  that  are  allowed  during  prosecution,  but,  the
complexity and uncertainty of European patent laws has also increased in recent years. Complying with these laws and
regulations could limit our ability to obtain new patents that may be important for our business.

We enjoy only limited geographical protection with respect to certain patents and we may not be able to protect
our intellectual property rights throughout the world.

Filing, prosecuting and defending patents covering our product 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-licensing  patents  covering  our  product  candidates  in  all  countries
throughout the world may similarly be prohibitively expensive, if such opportunities are available at all. And in- licensing
or filing, prosecuting and defending patents even in only those jurisdictions in which we develop or commercialize our
product  candidates  may  be  prohibitively  expensive  or  impractical.  Competitors  may  use  our  and  our  licensors’
technologies  in  jurisdictions  where  we  have  not  obtained  patent  protection  or  licensed  patents  to  develop  their  own
products  and,  further,  may  export  otherwise  infringing  products  to  territories  where  we  and  our  licensors  have  patent
protection, but enforcement is not as strong as that in the United States, the UK or the EU. These products may compete
with our product candidates, and our or our licensors’ patents or other intellectual property rights may not be effective or
sufficient to prevent them from competing.

90

Table of Contents

The  laws  of  some  jurisdictions  do  not  protect  intellectual  property  rights  to  the  same  extent  as  the  laws  or
regulations  in  the  United  States,  the  UK  and  the  EU,  and  many  companies  have  encountered  significant  difficulties  in
protecting  and  defending  proprietary  rights  in  such  jurisdictions.  Moreover,  the  legal  systems  of  certain  countries,
particularly  certain  developing  countries,  do  not  favor  the  enforcement  of  patents,  trade  secrets  or  other  forms  of
intellectual  property,  which  could  make  it  difficult  for  us  to  prevent  competitors  in  some  jurisdictions  from  marketing
competing  products  in  violation  of  our  proprietary  rights  generally.  Proceedings  to  enforce  our  patent  rights  in  foreign
jurisdictions, whether or not successful, are likely to result in substantial costs and divert our efforts and attention from
other  aspects  of  our  business,  and  additionally  could  put  at  risk  our  or  our  licensors’  patents  of  being  invalidated  or
interpreted  narrowly,  could  increase  the  risk  of  our  or  our  licensors’  patent  applications  not  issuing,  or  could  provoke
third  parties  to  assert  claims  against  us.  We  may  not  prevail  in  any  lawsuits  that  we  initiate,  while  damages  or  other
remedies may be awarded to the adverse party, which may be commercially significant. If we prevail, damages or other
remedies  awarded  to  us,  if  any,  may  not  be  commercially  meaningful.  Accordingly,  our  efforts,  or  the  efforts  of  our
licensors  or  collaborators,  to  enforce  intellectual  property  rights  around  the  world  may  be  inadequate  to  obtain  a
significant commercial advantage from the intellectual property that we develop or license.

Patent terms may be inadequate to protect our competitive position on our product candidates for an adequate
amount of time.

The term of any individual patent depends on applicable law in the country where the patent is granted. In the
United States, provided all maintenance fees are timely paid, a patent generally has a term of 20 years from its application
filing date or earliest claimed non-provisional filing date. Extensions may be available under certain circumstances, but
the life of a patent and, correspondingly, the protection it affords is limited. Even if we or our licensors obtain patents
covering  our  product  candidates,  when  the  terms  of  all  patents  covering  a  product  expire,  our  business  may  become
subject to competition from competitive medications, including generic medications. Given the amount of time required
for  the  development,  testing  and  regulatory  review  and  approval  of  new  product  candidates,  patents  protecting  such
candidates may expire before or shortly after such candidates are commercialized. As a result, our owned and licensed
patent  portfolio  may  not  provide  us  with  sufficient  rights  to  exclude  others  from  commercializing  products  similar  or
identical to ours.

If  we  do  not  obtain  patent  term  extension  in  the  United  States  under  the  Hatch-Waxman  Act  and  in  foreign
countries under similar legislation, thereby potentially extending the term of marketing exclusivity for our product
candidates, our business may be harmed.

In the United States, a patent that covers an FDA-approved drug or biologic may be eligible for a term extension
designed to restore the period of the patent term that is lost during the premarket regulatory review process conducted by
the FDA. Depending upon the timing, duration and conditions of FDA marketing approval of our product candidates, one
or  more  of  our  U.S.  patents  may  be  eligible  for  limited  patent  term  extension  under  the  Drug  Price  Competition  and
Patent  Term  Restoration  Act  of  1984,  or  the  Hatch-Waxman  Act,  which  permits  a  patent  term  extension  of  up  to  five
years  for  a  patent  covering  an  approved  product  as  compensation  for  effective  patent  term  lost  during  product
development and the FDA regulatory review process. In the UK and the EU, our product candidates may be eligible for
term extensions based on similar legislation. In each of these jurisdictions, however, we may not receive an extension if
we fail to apply within applicable deadlines, fail to apply prior to expiration of relevant patents or otherwise fail to satisfy
applicable  requirements.  Even  if  we  are  granted  such  extension,  the  duration  of  such  extension  may  be  less  than  our
request. If we are unable to obtain a patent term extension, or if the term of any such extension is less than our request,
the  period  during  which  we  can  enforce  our  patent  rights  for  that  product  will  be  essentially  shortened  and  our
competitors  may  obtain  approval  to  market  competing  products  sooner.  The  resulting  reduction  in  revenue  from
applicable products could be substantial.

91

Table of Contents

Our proprietary rights may not adequately protect our technologies and product candidates, and do not
necessarily address all potential threats to our competitive advantage.

The  degree  of  future  protection  afforded  by  our  intellectual  property  rights  is  uncertain  because  intellectual
property rights have limitations, and may not adequately protect our business, or permit us to maintain our competitive
advantage. The following examples are illustrative:

● others may be able to make products that are the same as or similar to our product candidates but that

are not covered by the claims of the patents that we own or have exclusively licensed;

● others,  including  inventors  or  developers  of  our  owned  or  in-licensed  patented  technologies  who  may
become  involved  with  competitors,  may  independently  develop  similar  technologies  that  function  as
alternatives  or  replacements  for  any  of  our  technologies  without  infringing  our  intellectual  property
rights;

● we  or  our  licensors  or  our  other  collaboration  partners  might  not  have  been  the  first  to  conceive  and
reduce to practice the inventions covered by the patents or patent applications that we own, license or
will own or license;

● we  or  our  licensors  or  our  other  collaboration  partners  might  not  have  been  the  first  to  file  patent
applications covering certain of the patents or patent applications that we or they own or have obtained a
license, or will own or will have obtained a license;

● we or our licensors may fail to meet obligations to the U.S. government with respect to in-licensed

patents and patent applications funded by U.S. government grants, leading to the loss of patent rights;

● issued patents that we own or exclusively license may not provide us with any competitive advantage, or

may be held invalid or unenforceable, as a result of legal challenges by our competitors; and

● our competitors might conduct research and development activities in countries where we do not have
patent rights, or in countries where research and development safe harbor laws exist, and then use the
information  learned  from  such  activities  to  develop  competitive  products  for  sale  in  our  major
commercial markets.

Our  reliance  on  third  parties  may  require  us  to  share  our  trade  secrets,  which  increases  the  possibility  that  our
trade secrets will be misappropriated or disclosed, and confidentiality agreements with employees and third parties
may not adequately prevent disclosure of trade secrets and protect other proprietary information.

We  consider  proprietary  trade  secrets,  confidential  know-how  and  unpatented  know-how  to  be  important  to  our
business.  We  may  rely  on  trade  secrets  and  confidential  know-how  to  protect  our  technology,  especially  where  patent
protection  is  believed  by  us  to  be  of  limited  value.  However,  trade  secrets  and  confidential  know-how  are  difficult  to
protect, and we have limited control over the protection of trade secrets and confidential know-how used by our licensors,
collaborators and suppliers. Because we have relied in the past on third parties to manufacture our product candidates,
because  we  may  continue  to  do  so  in  the  future,  and  because  we  expect  to  collaborate  with  third  parties  on  the
development  of  our  current  product  candidates  and  any  future  product  candidates  we  develop,  we  may,  at  times,  share
trade  secrets  with  them.  We  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. Under such circumstances,
trade secrets and confidential know-how can be difficult to maintain as confidential.

To protect this type of information against disclosure or appropriation by competitors, our policy is to require our

employees, consultants, contractors and advisors to enter into confidentiality agreements and, if applicable, material

92

Table of Contents

transfer agreements, consulting agreements or other similar agreements with us 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,  including  our  trade  secrets.  However,  current  or  former  employees,  consultants,  contractors  and  advisers
may unintentionally or willfully disclose our confidential information to competitors, and confidentiality agreements may
not  provide  an  adequate  remedy  in  the  event  of  unauthorized  disclosure  of  confidential  information.  We  may  also  be
subject  to  claims  that  our  employees,  consultants  or  independent  contractors  have  wrongfully  used  or  disclosed
confidential  information  of  their  former  employers  or  other  third  parties.  The  need  to  share  trade  secrets  and  other
confidential  information  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
competitive 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  an  adverse  effect  on  our
business and results of operations. Enforcing a claim that a third party obtained illegally and is using trade secrets and/or
confidential  know-how  is  expensive,  time  consuming  and  unpredictable,  and  the  enforceability  of  confidentiality
agreements  may  vary  from  jurisdiction  to  jurisdiction.  Courts  outside  the  United  States  are  sometimes  less  willing  to
protect proprietary information, technology and know-how.

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

If  our  trademarks  and  trade  names  are  not  adequately  protected,  then  we  may  not  be  able  to  build  name
recognition  in  our  markets  of  interest  and  our  business  may  be  adversely  affected.  Our  trademark  MeiraGTx  has  been
registered  in  the  EU,  UK  and  United  States.  We  may  not  be  able  to  protect  our  rights  to  these  trademarks  and  trade
names, which we need to build name recognition among potential partners or customers in our markets of interest. At
times,  competitors  may  adopt  trade  names  or  trademarks  similar  to  ours,  thereby  impeding  our  ability  to  build  brand
identity  and  possibly  leading  to  market  confusion.  In  addition,  there  could  be  potential  trade  name  or  trademark
infringement claims brought by owners of other registered trademarks or trademarks that incorporate variations of our
unregistered trademarks or trade names. Over the long term, if we are unable to successfully register our trademarks and
trade  names  and  establish  name  recognition  based  on  our  trademarks  and  trade  names,  then  we  may  not  be  able  to
compete effectively and our business may be adversely affected. Our efforts to enforce or protect our proprietary rights
related to trademarks, trade secrets, domain names, copyrights or other intellectual property may be ineffective and could
result  in  substantial  costs  and  diversion  of  resources  and  could  adversely  impact  our  financial  condition  or  results  of
operations.

We may need to license or acquire additional intellectual property from third parties, and such intellectual property
may not be available or may not be available on commercially reasonable terms.

The growth of our business may depend in part on our ability to acquire or in-license additional proprietary rights.
For  example,  our  programs  may  involve  product  candidates  or  equipment  that  may  require  the  use  of  additional
proprietary rights held by third parties. Our product candidates may also require specific formulations to work effectively
and  efficiently.  These  formulations  may  be  covered  by  intellectual  property  rights  held  by  others.  We  may  develop
products containing our compositions and pre-existing pharmaceutical compositions. These pharmaceutical products may
be covered by intellectual property rights held by others. We may be required by the FDA, MHRA, EMA or other foreign
regulatory authorities to provide a companion diagnostic test or tests with our product candidates. These diagnostic test or
tests may be covered by intellectual property rights held by others. We may be unable to acquire or in-license any relevant
third-party intellectual property rights that we identify as necessary or important to our business operations. We may fail
to obtain any of these licenses at a reasonable cost or on reasonable terms, if at all, which would harm our business. We
may need to cease use of the compositions or methods covered by such third-party intellectual property rights, and may
need to seek to develop alternative approaches that do not infringe on such intellectual property rights which may entail
additional costs and development delays, even if we were able to develop such alternatives, which may not be feasible.
Even if we are able to obtain a license under such intellectual property rights, any such license may be non-exclusive,
which may allow our competitors access to the same technologies licensed to us.

93

Table of Contents

Risks Related to Employee Matters and Managing Growth

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, 2021, we had 296 employees. We expect to continue to significantly expand our organization,

including hiring and training significant numbers of employees and managerial personnel to staff our expanding
manufacturing and supply chain operations in our new facilities in Ireland. We may have difficulty identifying, hiring and
integrating new personnel. Future growth would impose significant additional responsibilities on our management,
including the need to identify, recruit, maintain, motivate and integrate additional employees, consultants and contractors.
Also, 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, give rise to operational mistakes,
loss of business opportunities, loss of employees and reduced productivity among remaining employees. Our expected
growth could require significant capital expenditures and may divert financial resources from other projects, such as the
development of product 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 our product
candidates and compete effectively will depend, in part, on our ability to effectively manage any future growth. Our
expected growth could require significant capital expenditures and may divert financial resources from other projects,
such as the development of additional product candidates. If our management is unable to effectively manage our
expected growth, our expenses may increase more than expected, our potential ability to generate revenue could be
reduced and we may not be able to implement our business strategy. Many of the biotechnology companies that we
compete against for qualified personnel and consultants have greater financial and other resources, different risk profiles
and a longer history in the industry than we do. If we are unable to continue to attract and retain high-quality personnel
and consultants, the rate and success at which we can discover and develop product candidates and operate our business
will be limited.

Our future success depends on our ability to retain our key personnel and to attract, retain and motivate
qualified personnel.

Our  industry  has  experienced  a  high  rate  of  turnover  of  management  personnel  in  recent  years.  We  are  highly
dependent on the development, regulatory, commercialization and business development expertise of Alexandria Forbes,
Ph.D., our President and Chief Executive Officer, Rich Giroux, our Chief Operating Officer and Chief Financial Officer
and  Stuart  Naylor,  Ph.D.,  our  Chief  Development  Officer,  as  well  as  the  other  principal  members  of  our  management,
scientific  and  clinical  teams.  Although  we  have  formal  employment  agreements  with  certain  of  our  executive  officers,
these  agreements  do  not  prevent  them  from  terminating  their  employment  with  us  at  any  time  and,  for  certain  of  our
executive  officers,  entitle  them  to  receive  severance  payments  in  connection  with  their  voluntary  resignation  of
employment.

If we lose one or more of our executive officers or key employees, our ability to implement our business strategy
successfully  could  be  seriously  harmed.  Furthermore,  replacing  executive  officers  and  key  employees  may  be  difficult
and may take an extended period of time because of the limited number of individuals in our industry with the breadth of
skills and experience required to develop, gain regulatory approval of and commercialize product candidates successfully.
Competition  to  hire  from  this  limited  pool  is  intense,  and  we  may  be  unable  to  hire,  train,  retain  or  motivate  these
additional key personnel on acceptable terms given the competition among numerous pharmaceutical and biotechnology
companies  for  similar  personnel.  In  addition,  we  rely  on  consultants  and  advisors,  including  scientific  and  clinical
advisors, to assist us in formulating our research and development and commercialization strategy. Our consultants and
advisors may be engaged by entities other than us and may have commitments under consulting or

94

Table of Contents

advisory  contracts  with  other  entities  that  may  limit  their  availability  to  us.  If  we  are  unable  to  continue  to  attract  and
retain high quality personnel, our ability to develop and commercialize product candidates will be limited.

Potential product liability lawsuits against us could cause us to incur substantial liabilities and limit
commercialization of any products that we may develop.

The use of our product candidates in clinical trials 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, health care providers, pharmaceutical companies or others selling or otherwise coming into contact with our
products.  On  occasion,  large  judgments  have  been  awarded  in  class  action  lawsuits  based  on  products  that  had
unanticipated adverse effects. 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:

● impairment of our business reputation and significant negative media attention;

● withdrawal of participants from our clinical trials;

● significant time, costs and diversion of management resources to defend the related litigation;

● substantial monetary awards to patients or other claimants;

● inability to commercialize our product candidates;

● product recalls, withdrawals or labeling, marketing or promotional restrictions;

● decreased demand for our product candidates, if approved for commercial sale; and

● loss of revenue.

Our insurance policies are expensive and protect us only from some business risks, which leaves us exposed
to significant uninsured liabilities.

We  do  not  carry  insurance  for  all  categories  of  risk  that  our  business  may  encounter.  Some  of  the  policies  we
currently maintain include general liability, clinical trial liability, employment practices liability, property, auto, workers’
compensation, umbrella, cyber and directors’ and officers’ insurance. Any additional product liability insurance coverage
we  acquire  in  the  future,  may  not  be  sufficient  to  reimburse  us  for  any  expenses  or  losses  we  may  suffer.  Moreover,
insurance coverage is becoming increasingly expensive and restrictive, and in the future we may not be able to maintain
insurance coverage at a reasonable cost or in sufficient amounts to protect us against losses due to liability. If we obtain
marketing approval for our product candidates, we intend to acquire insurance coverage to include the sale of commercial
products;  however,  we  may  be  unable  to  obtain  product  liability  insurance  on  commercially  reasonable  terms  or  in
adequate amounts. A successful product liability claim or series of claims brought against us could cause our share price
to decline and, if judgments exceed our insurance coverage, could adversely affect our results of operations and business,
including preventing or limiting the commercialization of any product candidates we develop. We do not carry specific
biological  or  hazardous  waste  insurance  coverage,  and  our  property,  casualty  and  general  liability  insurance  policies
specifically  exclude  coverage  for  damages  and  fines  arising  from  biological  or  hazardous  waste  exposure  or
contamination. Accordingly, in the event of contamination or injury, we could be held liable for damages or be penalized
with fines in an amount exceeding our resources, and our clinical trials or regulatory approvals could be suspended.

Operating as a public company may make it more difficult and more expensive for us to obtain director and officer
liability  insurance,  and  we  may  be  required  to  accept  reduced  policy  limits  and  coverage  or  incur  substantially  higher
costs to obtain the same or similar coverage. As a result, it may be more difficult for us to attract and retain qualified

95

Table of Contents

people  to  serve  on  our  board  of  directors,  our  board  committees  or  as  executive  officers.  If  we  are  unable  to  maintain
existing insurance with adequate levels of coverage, any significant uninsured liability may require us to pay substantial
amounts, which would adversely affect our cash position and results of operations.

Our employees and independent contractors, including consultants, vendors, and any third parties we may engage in
connection with development and commercialization may engage in misconduct or other improper activities,
including noncompliance with regulatory standards and requirements, which could harm our business.

Misconduct by our employees and independent contractors, including consultants, vendors, and any third parties
we may engage in connection with development and commercialization, could include intentional, reckless or negligent
conduct or unauthorized activities that violate: (i) applicable laws and regulations of the FDA, MHRA, EMA and other
regulatory  or  governmental  authorities,  including  those  laws  that  require  the  reporting  of  true,  complete  and  accurate
information  to  such  authorities;  (ii)  manufacturing  standards;  (iii)  data  privacy,  security,  fraud  and  abuse  and  other
healthcare  laws  and  regulations;  or  (iv)  laws  that  require  the  reporting  of  true,  complete  and  accurate  financial
information and data. Specifically, 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.  Activities  subject  to  these  laws  could  also
involve  the  improper  use  or  misrepresentation  of  information  obtained  in  the  course  of  clinical  trials,  creation  of
fraudulent data in preclinical studies or clinical trials or illegal misappropriation of drug product, which could result in
regulatory sanctions and cause serious harm to our reputation. It is not always possible to identify and deter misconduct
by employees and other third parties, 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 such laws or regulations. Additionally, we are subject to the
risk that a person or government could allege such fraud or other misconduct, even if none occurred. 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 and results of operations, including the imposition of significant civil, criminal and
administrative  penalties,  damages,  monetary  fines,  disgorgements,  possible  exclusion  from  participation  in  Medicare,
Medicaid,  other  U.S.  federal  healthcare  programs  or  healthcare  programs  in  other  jurisdictions,  integrity  oversight  and
reporting  obligations  to  resolve  allegations  of  non-compliance,  individual  imprisonment,  other  sanctions,  contractual
damages, reputational harm, diminished profits and future earnings, and curtailment of our operations.

Our business and operations may suffer in the event of system failures and our systems and those of our business
partners and service providers may be vulnerable to cybersecurity risks.

Our information technology systems, including manufacturing systems, as well as those of our business partners
and  service  providers,  are  vulnerable  to  damage  from  computer  viruses,  unauthorized  access,  hardware  and  software
failures, natural disasters, terrorism, war and telecommunication and electrical failures. If such an event were to occur, it
could  result  in  a  material  disruption  of  our  product  candidate  development  programs  or  manufacturing  operations.  For
example, the loss of preclinical study or clinical trial data from completed, ongoing or planned trials could result in delays
in  our  regulatory  approval  efforts  and  significantly  increase  our  costs  to  recover  or  reproduce  the  data.  A  significant
interruption to our manufacturing operations could delay the completion of clinical trials and increase the costs of those
trials. To the extent that any disruption or security breach were to result in a loss of or damage to our data or applications,
or inappropriate disclosure of personal, confidential or proprietary information, we could incur liability and the further
development of our product candidates could be delayed.

In  the  ordinary  course  of  our  business,  we,  our  business  partners  and  our  service  providers  collect,  process  and
store sensitive data, including intellectual property, clinical trial data, proprietary business information, personal data and
personally identifiable information of our clinical trial subjects and employees. The secure processing, maintenance and
transmission  of  this  information  is  critical  to  our  operations.  Increased  cybersecurity  threats  pose  a  risk  to  this
information, in addition to our and our business partners’ and service providers’ systems and networks. Attacks upon

96

Table of Contents

information technology systems are increasing in their frequency, levels of persistence, sophistication and intensity, and
are being conducted by sophisticated and organized groups, governments and individuals with a wide range of motives
and expertise. As a result of the COVID-19 pandemic, we may also face increased cybersecurity risks due to our reliance
on  internet  technology  and  the  number  of  our  employees  who  are  working  remotely,  which  may  create  additional
opportunities  for  cybercriminals  to  exploit  vulnerabilities.  Furthermore,  because  the  techniques  used  to  obtain
unauthorized access to, or to sabotage, systems change frequently and often are not recognized until launched against a
target,  we  may  be  unable  to  anticipate  these  techniques  or  implement  adequate  preventative  measures.  We  may  also
experience security breaches that may remain undetected for an extended period. Even if identified, we may be unable to
adequately investigate or remediate incidents or breaches due to attackers increasingly using tools and techniques that are
designed to circumvent controls, to avoid detection, and to remove or obfuscate forensic evidence.

Despite our security measures, our information technology and infrastructure may be vulnerable to cyber-attacks
by  hackers  or  internal  bad  actors,  or  breached  due  to  employee  error,  a  technical  vulnerability,  malfeasance  or  other
disruptions  that  could  have  a  negative  impact,  including  loss  or  destruction  of  data  (including  confidential  or  critical
business information). Although, to our knowledge, we have not experienced any such material security breach to date,
we  may  experience  cybersecurity  incidents  such  as  malware  infections,  ransomware,  phishing  attempts,  thefts  of
personal,  confidential,  proprietary  or  other  critical  business  information  and  other  attempts  at  compromising  our
information technology that are typical for a company of our size in our market. Any security breach could compromise
our  networks  and  the  information  stored  there  could  be  accessed,  publicly  disclosed,  lost  or  stolen.  Any  such  access,
disclosure  or  other  loss  of  information  could  result  in  legal  claims  or  proceedings,  liability  under  laws  that  protect  the
privacy of personal information, significant regulatory penalties, and such an event could disrupt our operations, damage
our reputation, result in significant expenses in implementing future security measures and cause a loss of confidence in
us and our ability to conduct clinical trials, which could adversely affect our reputation and financial results, and delay
clinical development of our product candidates.

The UK’s withdrawal from the EU has resulted in changes to regulatory requirements and has had and may continue
to have a negative effect on global economic conditions, financial markets and our business, which could reduce the
price of our shares.

Following  a  national  referendum  and  enactment  of  legislation  by  the  government  of  the  UK,  the  UK  formally
withdrew from the EU on January 31, 2020, commonly referred to as “Brexit” and, following the expiry of the Brexit
transitional period on December 31, 2020, the UK now operates under a distinct regulatory regime and certain EU laws
now  only  apply  to  the  UK  in  respect  of  Northern  Ireland  (as  laid  out  in  the  Protocol  on  Ireland  and  Northern  Ireland,
including  but  not  limited  to  MAs).  The  MHRA  is  now  the  UK’s  standalone  regulator.  Although  the  UK  and  EU  have
reached an agreement on their future trading relationship pursuant to the EU-UK Trade and Cooperation Agreement, or
TCA, which has been provisionally applicable from January 1, 2021, the agreement does not cover all regulatory areas
regarding  supply  of  medicinal  product,  which  will  likely  be  subject  to  future  bilateral  discussions  going  forward  and
could further change the relationship between the UK and the EU in this regard.

EU  laws  which  have  been  transposed  into  UK  law  through  secondary  legislation  continue  to  be  applicable  as
“retained  EU  law”.  However,  new  legislation  such  as  the  EU  Clinical  Trials  Regulation,  (“EU  CTR”)  or  in  relation  to
orphan medicines will not be applicable. In addition, as there is no general power to amend the “retained EU law”, the UK
government adopted the Medicines and Medical Devices Act 2021 in February 2021 which introduces delegated powers in
favor  of  the  Secretary  of  State  or  an  “appropriate  authority”  to  amend  or  supplement  existing  regulations  in  the  area  of
medicinal products.  This allows new rules to be introduced in the future by way of secondary legislation, which aims to
allow flexibility in addressing regulatory gaps and future changes in the fields of human medicines and clinical trials of
human medicines. The new UK legislation may diverge from EU law and require that we comply with separate procedures
and standards, which may lead to additional costs and increase our overall risk exposure.

Brexit  has  created  additional  administrative  burdens  that  are  likely  to  result  in  disruptions  to  and  uncertainty

surrounding our planned clinical trials and activities in the UK and the EU, which may impact relationships with our

97

Table of Contents

existing and prospective customers, partners, vendors and employees. Already, various benefits of membership no longer
apply to the UK for clinical trials, such that, for example, UK sponsored trials that span several EU countries now need to
have an individual or organization in the EU to act as a legal representative, or sponsor and it is unclear whether the UK
will  have  access  to  new  EU  clinical  trial  databases  such  as  the  Clinical  Trial  Information  System  going  forward,  (the
centralized EU Portal for clinical trial information storage). Additionally, new rules apply to the import of investigational
medicinal products from the EU and EEA to Great Britain.

While agreement on the terms of the TCA has avoided a “no deal” Brexit scenario, and provides in principle for
quota  and  tariff  free  trading  of  goods,  it  is  nevertheless  expected  that  the  TCA  will  result  in  the  creation  of  non-tariff
barriers (such as increased shipping and regulatory costs and complexities) to the trade in goods between the UK and EU.
Further, the TCA does not provide for the continued free movement of services between the UK and EU and also grants
each of the UK and EU the ability, in certain circumstances, to unilaterally impose tariffs on one another. The TCA does
provide  for  the  mutual  recognition  of  GMP,  inspections  of  manufacturing  facilities  for  medicinal  products  and  GMP
documents  issued.  However,  it  is  important  to  note  that  significant  regulatory  gaps  still  exist  and  the  TCA  does  not
contain  wholesale  mutual  recognition  of  UK  and  EU  pharmaceutical  regulations  and  product  standards  between  the
parties, for example, in relation to batch testing and pharmacovigilance, which remain subject to further discussions.

For  MAs,  an  applicant  for  a  centralized  procedure  MA  must  be  established  in  the  EU.  After  Brexit,  companies
established  in  the  UK  can  no  longer  use  the  centralized  procedure  and  instead  must  follow  one  of  the  UK  national
authorization  procedures  or  one  of  the  remaining  post-Brexit  international  cooperation  procedures  (such  as  the  Access
Consortium) to obtain an MA to market products in the UK. The MHRA may rely on a decision taken by the European
Commission on the approval of a new (centralized procedure) MA when determining an application for a Great Britain
MA;  or  use  the  MHRA’s  decentralized  or  mutual  recognition  procedures  which  enable  MAs  approved  in  EU  member
states (or Iceland, Liechtenstein, Norway) to be granted in Great Britain. Additionally, the ‘Unfettered Access Procedure’
enables a marketing authorization holder in Northern Ireland to seek recognition in Great Britain.

The  full  impact  of  these  new  arrangements  and  requirements,  both  on  our  existing  processes  and  our  ability  to
adjust our business and operations to operate successfully in the UK and EU, as well as more broadly on UK-EU cross-
border trade and the economy, are expected to become clearer in the course of 2021. In particular, it remains to be seen
whether  the  initial  implementation  of,  and  adjustment  of  UK-EU  trading  processes  for,  the  TCA  could  disrupt  or
otherwise negatively impact our business and operations. These negative impacts could include amongst others a decrease
in foreign direct investment in the UK, an increase of our costs, disruption of our supply chains, restrictions on our ability
to access capital and depression on economic activity or economic instability, which could in turn lead to a reduction in
asset valuations, currency exchange rates and credit ratings.

In addition, the TCA has imposed additional restrictions on the free movement of people between the UK and the
EU,  which  could  have  a  material  adverse  effect  on  us,  since  we  compete  in  these  jurisdictions  for  well  qualified
employees  in  all  aspects  of  our  business.  Any  impact  on  our  ability  to  attract  new  employees  and  to  retain  existing
employees in their current jurisdictions could decrease our competitiveness. Any of these factors could have an adverse
effect on our business, financial condition, results of operations, and prospects.

Risks Related to Our Ordinary Shares

The market price of our ordinary shares may be volatile and fluctuate substantially, which could result in
substantial losses for purchasers of our ordinary shares.

Our share price is likely to be volatile. The stock market in general and the market for smaller biopharmaceutical
companies in particular have experienced extreme volatility that has often been unrelated to the operating performance of
particular companies. Additionally, the trading prices for our ordinary shares and the shares of other smaller
biopharmaceutical companies have been and continue to be highly volatile as a result of the COVID-

98

Table of Contents

19 pandemic. As a result of this volatility, you may not be able to sell your ordinary shares at or above your purchase
price. The market price for our ordinary shares may be influenced by many factors, including:

● the success of competitive products or technologies;

● actual or expected changes in our growth rate relative to our competitors;

● results of clinical trials of our product candidates or those of our competitors;

● developments related to our existing or any future collaborations;

● regulatory or legal developments in the United States and other countries;

● development of new product candidates that may address our markets and make our product candidates

less attractive;

● changes in physician, hospital or healthcare provider practices that may make our product candidates

less useful;

● announcements by us, our partners or our competitors of significant acquisitions, strategic partnerships,

joint ventures, collaborations or capital commitments;

● developments or disputes concerning patent applications, issued patents or other proprietary rights;

● the recruitment or departure of key personnel;

● the level of expenses related to any of our product candidates or clinical development programs;

● failure to meet or exceed financial estimates and projections of the investment community or that we

provide to the public;

● the results of our efforts to discover, develop, acquire or in-license additional product candidates or

products;

● actual or expected changes in estimates as to financial results, development timelines, recommendations

by securities analysts or shifting investor perceptions;

● variations in our financial results or those of companies that are perceived to be similar to us;

● changes in the structure of healthcare payment systems;

● market conditions in the pharmaceutical and biotechnology sectors;

● general economic, industry and market conditions;

● changes in accounting principles; and

● the other factors described in this “Item 1A. Risk Factors” section and elsewhere in this Form 10-K.

In  addition,  the  stock  market  in  general,  and  Nasdaq  and  biopharmaceutical  companies  in  particular,  have

experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating

99

Table of Contents

performance of these companies. In the past, when the market price of a security has been volatile, holders of that security
have sometimes instituted securities class action litigation against the issuer. This risk is especially relevant for us because
biopharmaceutical companies have experienced significant stock price volatility in recent years and during the COVID-
19  pandemic.  If  any  of  the  holders  of  our  ordinary  shares  were  to  bring  such  a  lawsuit  against  us,  we  could  incur
substantial costs defending the lawsuit and the attention of our senior management would be diverted from the operation
of our business. Any adverse determination in litigation could also subject us to significant liabilities. Broad market and
industry factors may negatively affect the market price of our ordinary shares, as well as general economic, political and
market conditions such as recessions, interest rate changes or international currency fluctuations, regardless of our actual
operating performance. Further, a decline in the financial markets and related factors beyond our control may cause the
price  of  our  ordinary  shares  to  decline  rapidly  and  unexpectedly.  If  the  market  price  of  our  ordinary  shares  does  not
exceed your purchase price, you may not realize any return on your investment in us and may lose some or all of your
investment.

Our executive officers, directors and principal shareholders, if they choose to act together, have the ability
to significantly influence all matters submitted to shareholders for approval.

As  of  December  31,  2021,  our  executive  officers,  directors  and  shareholders  who  owned  more  than  5%  of  our
outstanding  ordinary  shares  and  their  respective  affiliates,  in  the  aggregate,  hold  ordinary  shares  representing
approximately 41.1% of our outstanding ordinary shares.

As a result, if these shareholders choose to act together, they would be able to significantly influence all matters
submitted to our shareholders for approval, as well as our management and affairs. For example, these persons, if they
choose to act together, would significantly influence the election of directors, the composition of our management and
approval of any merger, consolidation, sale of all or substantially all of our assets or other business combination that other
shareholders may desire. Any of these actions could adversely affect the market price of our ordinary shares.

We are an “emerging growth company” and a “smaller reporting company,” and the reduced disclosure
requirements applicable to emerging growth companies and smaller reporting companies may make our ordinary
shares less attractive to investors.

We are an “emerging growth company,” as defined in the Jumpstart Our Business Startups Act of 2012 (“JOBS
Act”), and may remain an emerging growth company until the last day of the fiscal year following the fifth anniversary of
our  IPO.  However,  if  certain  events  occur  prior  to  the  end  of  such  five-year  period,  including  if  we  become  a  “large
accelerated filer,” our annual gross revenues exceed $1.07 billion or we issue more than $1.0 billion of non-convertible
debt in any three-year period, we will cease to be an emerging growth company prior to the end of such five-year period.
For so long as we remain an emerging growth company, we are permitted and intend to rely on exemptions from certain
disclosure  requirements  that  are  applicable  to  other  public  companies  that  are  not  emerging  growth  companies.  These
exemptions include:

● reduced disclosure obligations relating to the presentation of financial statements in the “Management’s
Discussion and Analysis of Financial Condition and Results of Operations” disclosure in our periodic
reports filed with the SEC;

● not being required to comply with the auditor attestation requirements in the assessment of our internal

control over financial reporting;

● not  being  required  to  comply  with  any  requirement  that  may  be  adopted  by  the  Public  Company
Accounting Oversight Board regarding mandatory audit firm rotation or a supplement to the auditor’s
report providing additional information about the audit and the financial statements;

● reduced disclosure obligations regarding executive compensation; and

100

Table of Contents

● exemptions from the requirements of holding a nonbinding advisory vote on executive compensation

and shareholder approval of any golden parachute payments not previously approved.

In  addition,  the  JOBS  Act  provides  that  an  emerging  growth  company  can  take  advantage  of  an  extended
transition period for complying with new or revised accounting standards. This allows an emerging growth company to
delay the adoption of these accounting standards until they would otherwise apply to private companies. We have elected
to take advantage of this extended transition period.

We are also a smaller reporting company, and we will remain a smaller reporting company until the fiscal year
following  the  determination  that  our  voting  and  non-voting  ordinary  shares  held  by  non-affiliates  is  more  than  $250
million measured on the last business day of our second fiscal quarter, or our annual revenues are more than $100 million
during  the  most  recently  completed  fiscal  year  and  our  voting  and  non-voting  ordinary  shares  held  by  non-affiliates  is
more  than  $700  million  measured  on  the  last  business  day  of  our  second  fiscal  quarter.  Similar  to  emerging  growth
companies,  smaller  reporting  companies  are  able  to  provide  simplified  executive  compensation  disclosure,  are  exempt
from the auditor attestation requirements of Section 404, and have certain other reduced disclosure obligations, including,
among  other  things,  not  being  required  to  provide  selected  financial  data,  supplemental  financial  information  or  risk
factors.

We  may  choose  to  take  advantage  of  some,  but  not  all,  of  the  available  exemptions  for  emerging  growth
companies  and  smaller  reporting  companies.  We  cannot  predict  whether  investors  will  find  our  ordinary  shares  less
attractive if we rely on these exemptions. If some investors find our ordinary shares less attractive as a result, there may
be a less active trading market for our ordinary shares and our share price may be more volatile.

Anti-takeover  provisions  in  our  organizational  documents  and  Cayman  Islands  law  may  discourage  or  prevent  a
change of control, even if an acquisition would be beneficial to our shareholders, which could depress the price of our
ordinary shares and prevent attempts by our shareholders to replace or remove our current management.

Our  memorandum  and  articles  of  association  contain  provisions  that  may  discourage  unsolicited  takeover
proposals that shareholders may consider to be in their best interests. Our board of directors is divided into three classes
with staggered, three-year terms. Our board of directors has the ability to designate the terms of and issue preferred shares
without  shareholder  approval.  We  are  also  subject  to  certain  provisions  under  Cayman  Islands  law  that  could  delay  or
prevent  a  change  of  control.  Together  these  provisions  may  make  more  difficult  the  removal  of  management  and  may
discourage  transactions  that  otherwise  could  involve  payment  of  a  premium  over  prevailing  market  prices  for  our
ordinary shares.

There may be difficulties in enforcing foreign judgments against our management or us.

Certain of our directors and management reside outside the United States. A significant portion of our assets and
such persons’ assets are located outside the United States. As a result, it may be difficult or impossible for investors to
effect service of process upon us within the United States or other jurisdictions, including judgments predicated upon the
civil liability provisions of the federal securities laws of the United States.

In particular, investors should be aware that there is uncertainty as to whether the courts of the Cayman Islands or
any  other  applicable  jurisdictions  would  recognize  and  enforce  judgments  of  U.S.  courts  obtained  against  us  or  our
directors or management predicated upon the civil liability provisions of the securities laws of the United States or any
state in the United States or entertain original actions brought in the Cayman Islands or any other applicable jurisdiction’s
courts against us or our directors or officers predicated upon the securities laws of the United States or any state in the
United States.

101

Table of Contents

The rights of our shareholders differ from the rights typically offered to shareholders of a U.S. corporation.

Our corporate affairs and the rights of holders of ordinary shares are governed by Cayman Islands law, including
the  provisions  of  the  Cayman  Islands  Companies  Law  (as  amended),  or  the  Companies  Law,  the  common  law  of  the
Cayman Islands and by our memorandum and articles of association. We are also subject to the federal securities laws of
the United States. The rights of shareholders to take action against the directors, actions by minority shareholders and the
fiduciary responsibilities of our directors to us under Cayman Islands law are to a large extent governed by the common
law of the Cayman Islands. The common law of the Cayman Islands is derived in part from comparatively limited judicial
precedent in the Cayman Islands as well as from English common law, the decisions of whose courts are of persuasive
authority,  but  are  not  binding  on  a  court  in  the  Cayman  Islands.  The  rights  of  our  shareholders  and  the  fiduciary
responsibilities  of  our  directors  under  Cayman  Islands  law  are  different  from  what  they  would  be  under  statutes  or
judicial  precedent  in  some  jurisdictions  in  the  United  States.  In  particular,  the  Cayman  Islands  has  a  different  body  of
securities laws as compared to the United States, and certain states, such as Delaware, may have more fully developed
and  judicially  interpreted  bodies  of  corporate  law.  In  addition,  Cayman  Islands  companies  may  not  have  standing  to
initiate a shareholders derivative action in a Federal court of the United States.

As a result of all of the above, public shareholders may have more difficulty in protecting their interests in the face
of actions taken by management, members of the board of directors or controlling shareholders than they would as public
shareholders of a United States company.

We expect to be treated as resident in the UK for tax purposes, but may be treated as a dual resident company for UK
tax purposes.

Our board of directors conducts our affairs so that the central management and control of the company is exercised
in the UK. As a result, we expect to be treated as resident in the UK for UK tax purposes. Accordingly, we expect to be
subject to UK taxation on our income and gains, except where an exemption applies.

However,  we  may  be  treated  as  a  dual  resident  company  for  UK  tax  purposes.  As  a  result,  our  right  to  claim
certain reliefs from UK tax may be restricted, and changes in law or practice in the UK could result in the imposition of
further restrictions on our right to claim UK tax reliefs.

We may be classified as a passive foreign investment company, or PFIC, for U.S. federal income tax purposes,
which could result in adverse U.S. federal income tax consequences to U.S. investors in our ordinary shares.

Based  on  the  current  and  anticipated  value  of  our  assets,  including  goodwill,  and  the  current  and  anticipated
composition  of  our  income,  assets  and  operations,  we  do  not  believe  we  were  a  PFIC  for  the  taxable  year  ended  on
December 31, 2021, and do not expect to be a PFIC for the current taxable year. However, the application of the PFIC
rules is subject to uncertainty in several respects, and we cannot assure you that the U.S. Internal Revenue Service, or the
IRS, will not take a contrary position. Furthermore, a separate determination must be made after the close of each taxable
year  as  to  whether  we  are  a  PFIC  for  that  year.  Accordingly,  we  cannot  assure  you  that  we  were  not  a  PFIC  for  our
taxable year ended on December 31, 2021 or that we will not be a PFIC for our current taxable year or any future taxable
year. A non-U.S. company will be considered a PFIC for any taxable year if (i) at least 75% of its gross income is passive
income (including interest income), or (ii) at least 50% of the value of its assets (based on an average of the quarterly
values of the assets during a taxable year) is attributable to assets that produce or are held for the production of passive
income. The value of our assets generally is determined by reference to the market price of our ordinary shares, which
may fluctuate considerably. In addition, the composition of our income and assets is affected by how, and how quickly,
we spend any cash we raise. If we were to be classified as a PFIC for any taxable year during which a U.S. holder holds
our ordinary shares, certain materially adverse U.S. federal income tax consequences could apply to such U.S. holder.

102

Table of Contents

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

If a U.S. holder of our ordinary shares is treated as owning (directly, indirectly or constructively) at least 10% of
the value or voting power of our ordinary shares, such U.S. holder may be treated as a “United States shareholder” with
respect to each “controlled foreign corporation” in our group (if any). If our group includes one or more U.S. subsidiaries,
certain  of  our  non-U.S.  subsidiaries  could  be  treated  as  controlled  foreign  corporations  (regardless  of  whether  we  are
treated  as  a  controlled  foreign  corporation).  A  United  States  shareholder  of  a  controlled  foreign  corporation  may  be
required  to  report  annually  and  include  in  its  U.S.  taxable  income  its  pro  rata  share  of  “Subpart  F  income,”  “global
intangible low-taxed income” and investments in U.S. property by controlled foreign corporations, regardless of whether
we  make  any  distributions.  An  individual  that  is  a  United  States  shareholder  with  respect  to  a  controlled  foreign
corporation generally would not be allowed certain tax deductions or foreign tax credits that would be allowed to a United
States  shareholder  that  is  a  U.S.  corporation.  Failure  to  comply  with  these  reporting  obligations  may  subject  you  to
significant monetary penalties and may prevent the statute of limitations from starting with respect to your U.S. federal
income  tax  return  for  the  year  for  which  reporting  was  due.  We  cannot  provide  any  assurances  that  we  will  assist
investors in determining whether any of our non-U.S. subsidiaries is treated as a controlled foreign corporation or whether
such investor is treated as a United States shareholder with respect to any of such controlled foreign corporations. Further,
we  cannot  provide  any  assurances  that  we  will  furnish  to  any  United  States  shareholders  information  that  may  be
necessary to comply with the aforementioned reporting and tax payment obligations. U.S. holders of our ordinary shares
should  consult  their  tax  advisors  regarding  the  potential  application  of  these  rules  to  their  investment  in  our  ordinary
shares.

Changes in tax laws or challenges to our tax position could adversely affect our results of operations and
financial condition.

We  are  subject  to  complex  tax  laws  that  are  subject  to  change  or  differing  interpretations,  including  on  a
retroactive basis. Any such changes in tax laws, regulations and treaties, or the interpretation thereof, tax policy initiatives
and reforms under consideration and the practices of tax authorities in jurisdictions in which we operate could adversely
affect our tax position, including our effective tax rate or tax payments.

We have significant U.S. federal and state net operating losses, or NOLs, and UK carryforward tax losses which we
may not be able to realize or which may be restricted under applicable law. We also benefit from certain tax incentive
regimes, such as research and development tax credits. Any adverse change to these regimes, the application thereof
or challenges to the tax position we have adopted under these rules could adversely affect our results of operations
and financial condition.

As of December 31, 2021, we had federal and state NOL carryforwards in the United States of $73.6 million and
$73.3 million, respectively, and cumulative carryforward tax losses in the UK of $164.3 million, which we expect to be
available  to  reduce  future  taxable  income  subject  to  any  relevant  restrictions  (including  those  in  the  U.S.  and  UK  that
limit the percentage of taxable income that can be reduced by NOLs and carried forward losses). The U.S. federal and
state NOLs incurred prior to January 1, 2018 in the amount of approximately $6.8 million and $6.7 million, respectively,
will begin to expire in 2036. U.S. federal NOLs generated after December 31, 2017 are not subject to expiration but such
NOLs may only offset 80% of taxable income for taxable years beginning after December 31, 2020. As of December 31,
2021,  we  also  had  orphan  drug  and  research  and  development  credits  in  the  U.S.  in  the  amount  of  $6.7  million  and
research and development credits in the UK of $1.5 million. The UK carryforward tax losses will continue indefinitely,
subject to relevant restrictions, under current UK legislation.

The  NOLs  and  carryforward  tax  losses  are  subject  to  review  and  possible  adjustment  by  the  applicable  tax
authorities. Additionally, NOLs and UK carryforward tax losses, and research and development tax credits, may become
subject to limitations in the event of certain cumulative changes in the ownership interest of significant shareholders, as
determined under Sections 382 of the United States Internal Revenue Code, as well as the Corporation Tax Act 2010 Part
14 under the UK tax rules. This could limit the amount of NOLs or carryforward tax losses that we can utilize

103

Table of Contents

annually  to  offset  future  taxable  income  or  tax  liabilities.  We  have  conducted  a  review  of  changes  in  the  ownership
interest of significant shareholders and determined that as of December 31, 2020, there were no limitations in the UK.
However, for U.S. federal tax purposes, we have determined that ownership changes occurred in August 2016 and June
2018. We are still in the process of determining the annual limitation on NOLs as a result of such ownership changes.
Subsequent  ownership  changes  and  changes  to  the  U.S.  federal  or  state  or  UK  tax  rules  in  respect  of  the  utilization  of
NOLs and carryforward tax losses may further affect the limitation in future years.

General Risk Factors

We may engage in acquisitions that could disrupt our business, cause dilution to our shareholders or reduce
our financial resources.

We have, and may in the future, enter into transactions to acquire other businesses, products or technologies. If
we  do  identify  suitable  candidates,  we  may  not  be  able  to  make  such  acquisitions  on  favorable  terms,  or  at  all.  Any
acquisitions we make may not strengthen our competitive position, and these transactions may be viewed negatively by
customers  or  investors.  We  may  decide  to  incur  debt  in  connection  with  an  acquisition  or  issue  our  ordinary  shares  or
other equity securities to the shareholders of the acquired company, which would reduce the percentage ownership of our
existing shareholders. We could incur losses resulting from undiscovered liabilities of the acquired business that are not
covered by the indemnification we may obtain from the seller. In addition, we may not be able to successfully integrate
the acquired personnel, technologies and operations into our existing business in an effective, timely and nondisruptive
manner. Acquisitions may also divert management attention from day-to-day responsibilities, increase our expenses and
reduce  our  cash  available  for  operations  and  other  uses.  We  cannot  predict  the  number,  timing  or  size  of  future
acquisitions or the effect that any such transactions might have on our operating results.

Exchange rate fluctuations may adversely affect our results of operations and financial condition.

Owing  to  the  international  scope  of  our  operations,  fluctuations  in  exchange  rates  may  adversely  affect  us,
particularly between the U.S. dollar on the one hand, and the pound sterling and euro on the other hand. As a result, our
business and the market price of our securities may be affected by such fluctuations, which may have a significant impact
on our results of operations and cash flows from period to period. Currently, we do not have any exchange rate hedging
arrangements in place

Our management team has broad discretion as to the use of the net proceeds from public and private equity or debt
financings and the investment of these proceeds may not yield a favorable return. We may invest the proceeds in
ways with which our shareholders disagree.

We  have  broad  discretion  in  the  application  of  any  net  proceeds  we  may  receive  pursuant  to  any  past  or  future
equity or debt financings. Shareholders may not agree with our decisions, and our use of the proceeds and our existing
cash  and  cash  equivalents  may  not  improve  our  results  of  operation  or  enhance  the  value  of  our  ordinary  shares.  Our
failure to apply these funds effectively could have a material adverse effect on our business, delay the development of our
product candidates and cause the market price of our ordinary shares to decline. In addition, until the net proceeds are
used, they may be placed in investments that do not produce significant income or that may lose value. Additionally, our
existing cash and cash equivalents are subject to general credit, liquidity, market and interest rate risks, which have been
and may, in the future, be exacerbated by a U.S. and/or global financial crises. We may realize losses in the fair value of
certain  of  our  investments  or  a  complete  loss  of  these  investments  if  the  credit  markets  tighten,  which  would  have  an
adverse effect on our results of operations, liquidity and financial condition.

104

Table of Contents

We incur substantial costs as a result of operating as a public company, and our management is required to
devote substantial time to new compliance initiatives and corporate governance practices.

As  a  public  company,  and  particularly  if  we  no  longer  qualify  as  an  emerging  growth  company  and  smaller
reporting company in the future, we incur and will continue to incur significant legal, accounting and other expenses that
we  did  not  incur  as  a  private  company.  The  Sarbanes-Oxley  Act  of  2002,  the  Dodd-Frank  Wall  Street  Reform  and
Consumer  Protection  Act,  The  Nasdaq  Global  Select  listing  requirements  and  other  applicable  securities  rules  and
regulations  impose  various  requirements  on  public  companies,  including  establishment  and  maintenance  of  effective
disclosure  and  financial  controls  and  corporate  governance  practices.  Our  management  and  other  personnel  need  to
devote a substantial amount of time to these compliance initiatives. Moreover, these rules and regulations increase our
legal and financial compliance costs.

Pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, or Section 404, we are required to furnish a report by
our  management  on  our  internal  control  over  financial  reporting.  However,  while  we  remain  an  emerging  growth
company, we will not be required to include an attestation report on internal control over financial reporting issued by our
independent  registered  public  accounting  firm.  To  achieve  compliance  with  Section  404,  we  engage  in  a  process  to
document and evaluate our internal control over financial reporting, which is both costly and challenging. In this regard,
we will need to continue to dedicate internal resources, potentially engage outside consultants, adopt a detailed work plan
to  assess  and  document  the  adequacy  of  internal  control  over  financial  reporting,  continue  steps  to  improve  control
processes as appropriate, validate through testing whether such controls are functioning as documented, and implement a
continuous reporting and improvement process for internal control over financial reporting. Despite our efforts, there is a
risk  that  we,  or  our  independent  registered  public  accounting  firm  if  we  no  longer  qualify  as  an  emerging  growth
company, will not be able to conclude that our internal control over financial reporting is effective as required by Section
404.  In  addition,  any  testing  by  us  conducted  in  connection  with  Section  404,  or  any  subsequent  testing  by  our
independent  registered  public  accounting  firm,  may  reveal  deficiencies  in  our  internal  controls  over  financial  reporting
that  are  deemed  to  be  material  weaknesses  or  that  may  require  prospective  or  retroactive  changes  to  our  financial
statements or identify other areas for further attention or improvement. If we identify one or more material weaknesses or
determine we have inadequate internal controls, it could result in an adverse reaction in the financial markets due to a loss
of confidence in the reliability of our financial statements.

If securities or industry analysts cease to publish research or reports about our business, or if they issue an adverse
or misleading opinion regarding our ordinary shares, our share price and trading volume could decline.

The  trading  market  for  our  ordinary  shares  relies  in  part  on  the  research  and  reports  that  industry  or  securities
analysts publish about us or our business. We do not control these analysts. Furthermore, if any of the analysts who cover
us  issue  an  adverse  or  misleading  opinion  regarding  us,  our  business  model,  our  intellectual  property  or  our  share
performance,  or  if  any  of  our  preclinical  studies  or  clinical  trials  and  operating  results  fail  to  meet  the  expectations  of
analysts, our share price would likely decline. If one or more of these analysts ceases coverage of us or fails to publish
reports  on  us  regularly,  we  could  lose  visibility  in  the  financial  markets,  which  in  turn  could  cause  our  share  price  or
trading volume to decline.

Expectations relating to environmental, social and governance factors may impose additional costs and expose us to
new risks.

There is an increasing focus from the SEC, stock exchanges, certain investors and other stakeholders concerning
corporate responsibility, specifically related to environmental, social and governance factors. The SEC is considering new
disclosure  requirements  relating  to  environmental,  social  and  governance  factors,  and  the  SEC  recently  approved  new
Nasdaq listing and disclosure requirements relating to board diversity that are applicable to us. Some investors may use
these factors to guide their investment strategies and, in some cases, may choose not to invest in us if they believe our
policies  and  disclosures  relating  to  corporate  responsibility  are  inadequate.  Third-party  providers  of  corporate
responsibility ratings and reports on companies have varied and in some cases inconsistent standards. In addition, the

105

Table of Contents

criteria by which companies’ corporate responsibility practices are assessed are evolving, which could result in greater
expectations of us and cause us to undertake costly initiatives to satisfy such new criteria. Alternatively, if we elect not to
or are unable to satisfy such new criteria or do not meet the criteria of a specific third-party provider, some investors may
conclude that our policies with respect to corporate responsibility are insufficient. We may face reputational damage in
the event that our corporate responsibility procedures or standards do not meet the standards set by various constituencies.
Furthermore, if our competitors’ corporate responsibility performance is perceived to be greater than ours, potential or
current  investors  may  elect  to  invest  with  our  competitors  instead.  In  addition,  in  the  event  that  we  communicate  or
disclose  certain  initiatives  and  goals  regarding  environmental,  social  and  governance  matters,  we  could  fail,  or  be
perceived to fail, in our achievement of such initiatives or goals, or we could be criticized for the scope of such initiatives
or  goals  or  be  subject  to  litigation  for  such  failures.  If  we  fail  to  satisfy  the  expectations  of  investors  and  other
stakeholders  or  our  initiatives  are  not  executed  as  planned,  our  reputation  and  financial  results  could  be  adversely
affected.

Because we do not anticipate paying any cash dividends on our ordinary shares in the foreseeable future,
capital appreciation, if any, would be your sole source of gain.

Under Cayman Islands law, we may only make distributions by way of dividend out of profits, or out of our share
premium account (provided that immediately following the date that the dividend is proposed to be paid we are able to
pay our debts as they fall due in the ordinary course of business). We have never declared or paid any cash dividends on
our  ordinary  shares.  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. As a
result,  capital  appreciation,  if  any,  of  our  ordinary  shares  would  be  your  sole  source  of  gain  on  an  investment  in  our
ordinary  shares  for  the  foreseeable  future.  See  the  “Dividend  Policy”  section  of  this  Form  10-K  for  the  year  ended
December 31, 2021 for additional information.

ITEM 1B.

UNRESOLVED STAFF COMMENTS

Not applicable.

ITEM 2.

PROPERTIES

Our principal office is located at 450 East 29th Street, New York, New York, USA, where we lease 22,721 square 

feet of office and laboratory space.  We lease this office space under a lease that terminates on October 31, 2026.

We also own a long leasehold interest in the ground rights where our 29,000 square foot manufacturing facility is 

located, at 92 Britannia Walk, London, United Kingdom.  The long leasehold interest expires in 2126, and there is no 
facility rent due.

Additionally, we lease an 11,306 square foot office facility located at 34-38 Provost Street, London, United 

Kingdom and 6,679 square feet of laboratory facilities at 15 Ebenezer Street, London, United Kingdom.  The office space 
lease terminates on September 8, 2029 and the laboratory leases terminate on May 24, 2027. We also lease 10,126 square 
feet of office, laboratory and storage facilities at Paalbergweg 2-4, Amsterdam, Netherlands.  The lease terminates on 
March 30, 2031.   

In January 2021, we completed the acquisition of the buildings for our second cGMP viral vector manufacturing
facility and our first cGMP plasmid and DNA production facility located in Buildings 2 and 3, Block K, Airport Avenue,
Shannon Free Zone, Shannon, Ireland. The campus encompasses an aggregate of 150,000 square feet.  We also entered into
a lease for each property providing for a long leasehold interest of approximately 191 years.

106

Table of Contents

ITEM 3.

LEGAL PROCEEDINGS

We are not subject to any material legal proceedings.

ITEM 4.

MINE SAFETY DISCLOSURES

Not applicable.

107

Table of Contents

PART II

ITEM 5.
AND ISSUER PURCHASES OF EQUITY SECURITIES

MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS

Market Information

Our ordinary shares trade on the Nasdaq Global Select Market under the symbol “MGTX.”

Holders of Record

As of March 8, 2022, there were 64 holders of record.  The actual number of shareholders of our ordinary shares 

is greater than this number of record holders and includes shareholders who are beneficial owners but whose ordinary 
shares are held in street name by brokers and other nominees.  This number of holders of record also does not include 
shareholders whose ordinary shares may be held in trust by other entities.

Dividend Policy

We have never declared or paid any cash dividends on our ordinary shares.  We intend to retain future earnings, if 

any, to finance the operation and expansion of our business and do not anticipate paying any cash dividends in the 
foreseeable future.  However, if we do pay a cash dividend on our ordinary shares in the future, we will only pay such 
dividend out of our profits or share premium (subject to solvency requirements) as permitted under Cayman Islands law.

Recent Sales of Unregistered Securities

On  October  4,  2021  (the  “Bullseye  Closing  Date”),  we  acquired  Bullseye  Therapeutics,  Inc.  (“Bullseye”),  a
company  engaged  in  developing  mechanisms  to  deliver  retinal  drugs  and  gene  therapies  to  the  eye.  We  entered  into  an
agreement to acquire Bullseye pursuant to an Agreement and Plan of Merger (the “Bullseye Merger Agreement”) by and
among the Company, Bullseye, BT Acquisition Sub, Inc., a wholly-owned subsidiary of the Company (“Merger Sub 1”),
BT  Acquisition  Sub  2,  Inc.,  a  wholly-owned  subsidiary  of  the  Company  (“Merger  Sub  2”),  the  Bullseye  stockholders
named  therein  and  the  Bullseye  stockholder  representative,  pursuant  to  which  Merger  Sub  1  was  merged  with  and  into
Bullseye, with Bullseye being the surviving corporation (“Merger 1”) and, immediately following Merger 1, Bullseye was
merged  with  and  into  Merger  Sub  2,  with  Merger  Sub  2  being  the  surviving  corporation  (together  with  Merger  1,  the
“Bullseye Merger”). As a result of the Bullseye Merger, Bullseye is a wholly-owned subsidiary of the Company.

In connection with the acquisition of Bullseye, the consideration to Bullseye’s selling stockholders consisted of an
aggregate  of  80,276  of  the  Company’s  ordinary  shares  of  which  (i)  12,040  ordinary  shares  were  issued  on  the  Bullseye
Closing Date, (ii) 28,097 restricted ordinary shares were issued on the Bullseye Closing Date, with 50% of such restricted
ordinary  shares  scheduled  to  vest  on  each  of  the  first  and  second  anniversaries  of  the  Bullseye  Closing  Date,  and  (iii)
40,139 ordinary shares will be issued 18 months following the Bullseye Closing Date, provided that the shares described in
clauses (ii) and (iii) are subject to certain indemnification claims under the Bullseye Merger Agreement. The Company also
assumed $0.5 million of Bullseye’s liabilities (“Assumed Liabilities”). Total consideration of $1.5 million was based on the
closing price of the Company’s ordinary shares of $13.31 per share on October 1, 2021, plus the Assumed Liabilities.

Additionally,  on  October  9,  2021,  we  issued  58,000  ordinary  shares  to  certain  stockholders  of  Emrys  Bio  Inc.
(“Emrys”) in accordance with the terms of the Agreement and Plan of Merger, dated as of April 9, 2020, by and among the
Company, Emrys, and EB Acquisition, Inc., a wholly-owned subsidiary of the Company, the Emrys stockholders and the
Emrys stockholder representative. 

108

Table of Contents

The ordinary shares have not been registered under the Securities Act of 1933, as amended (the “Securities Act”)
or any state securities laws and were issued and will be issued, as applicable, in reliance on the exemption from registration
provided by Section 4(a)(2) of the Securities Act and Rule 506 of Regulation D promulgated thereunder.  

ITEM 6.

RESERVED

ITEM 7.
RESULTS OF OPERATIONS

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

You should read the following discussion and analysis of financial condition and operating results together with
our  financial  statements  and  the  related  notes  appearing  in  this  Form  10-K.    Some  of  the  information  contained  in  this
discussion  and  analysis  or  set  forth  elsewhere  in  this  Form  10-K,  including  information  with  respect  to  our  plans  and
strategy for our business and related financing, includes forward-looking statements that involve risks and uncertainties.
As a result of many important factors, including those set forth in the section of this Form 10-K captioned “Item 1A.  Risk
Factors”  and  elsewhere  in  this  Form  10-K,  our  actual  results  could  differ  materially  from  the  results  described  in,  or
implied  by,  the  forward-looking  statements  contained  in  the  following  discussion  and  analysis.    For  convenience  of
presentation some of the numbers have been rounded in the text below.

Overview

We are a vertically integrated, clinical stage gene therapy company with six programs in clinical development and 
a broad pipeline of preclinical and research programs. We have core capabilities in viral vector design and optimization and 
gene therapy manufacturing, as well as a potentially transformative gene regulation technology. Led by an experienced 
management team, we have taken a portfolio approach by licensing, acquiring and developing technologies that give us 
depth across both product candidates and indications. Our initial focus is on three distinct areas of unmet medical need: 
ocular, including inherited retinal diseases and large degenerative ocular diseases, neurodegenerative diseases, and severe 
forms of xerostomia.  Though initially focusing on the eye, central nervous system and salivary gland, we intend to expand 
our focus in the future to develop additional gene therapy treatments for patients suffering from a range of serious diseases.

We are an exempted company incorporated under the laws of the Cayman Islands in 2018, and prior to that, we

commenced operations as MeiraGTx Limited, a private limited company incorporated under the laws of England and
Wales in 2015. Our discussion of our financial condition and results of operations is based upon our financial statements,
which have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”).
Since our formation, we have devoted substantially all of our resources to developing our technology platform, establishing
our viral vector manufacturing facilities and our cGMP plasmid and DNA production facility and developing
manufacturing processes, advancing the product candidates in our ophthalmology, salivary gland and neurodegenerative
disease programs, building our intellectual property portfolio, organizing and staffing our company, developing our
business plan, raising capital, and providing general and administrative support for these operations. To date, we have
financed our operations primarily with cash on hand and proceeds from the sales of our Series A ordinary shares,
Convertible Preferred C Shares and ordinary shares. Through December 31, 2021, we received gross proceeds of
approximately $446.0 million from sales of our ordinary shares, Series A ordinary shares and convertible preferred C
shares and $130.0 million from the collaboration, option and license agreement with Janssen Pharmaceuticals, Inc.
(“Janssen”), one of the Janssen Pharmaceuticals Companies of Johnson & Johnson (the “Collaboration Agreement”). As of
December 31, 2021, we had cash and cash equivalents of $137.7 million, as well as $22.4 million in receivables due from
Janssen in the first quarter of 2022 in connection with the Collaboration Agreement.

We are a clinical stage company and have not generated any product revenues to date. We have six clinical

programs and a pipeline of preclinical programs. Since inception, we have incurred significant operating losses. Our net
losses for the years ended December 31, 2021 and 2020 were $79.6 million and $58.0 million, respectively. As of
December 31, 2021, we had an accumulated deficit of $340.6 million. We do not expect to generate revenue from sales

109

Table of Contents

of any products for several years, if at all. Under the Collaboration Agreement, we received an upfront payment in the
amount of $100.0 million in March 2019 and a milestone payment in the amount of $30.0 million in December 2021.
Additionally, pursuant to the Collaboration Agreement, we are eligible to receive research and development funding and
additional potential milestone payments and royalties.

Our total operating expenses were $110.9 million and $78.1 million for the years ended December 31, 2021 and

2020, respectively. While we expect our operating expenses to continue to increase in connection with our ongoing
development activities related to our product candidates, including the ongoing Phase 3 Lumeos clinical trial of
botaretigene sparoparvovec for the treatment of patients with XLRP and the initiation of a Phase 3 clinical trial of AAV-
RPE65 for the treatment of retinal dystrophy associated with mutations in the RPE65 gene, we believe that certain of these 
increases will be partially offset by the research funding in connection with the Collaboration Agreement.  In addition, we 
expect to continue incurring increasing costs associated with our clinical activities for AAV-hAQP1 for the treatment of 
radiation-induced xerostomia and xerostomia associated with Sjogren’s syndrome. We expect to file an IND application for 
AAV-GAD in the first half of 2022. We also incurred expenses during the year ended December 31, 2021 and expect to
continue to incur expenses related to research activities in additional therapeutic areas to expand our pipeline, developing
our potentially transformative gene regulation technology, hiring additional personnel in manufacturing, research, clinical
operations, quality and other functional areas, and associated cash and share-based compensation expense, as well as the
further development of internal manufacturing capabilities and capacity and other associated costs including the
management of our intellectual property portfolio.

As a result of these anticipated expenditures and the acquisition, development and startup of our new Shannon, 

Ireland manufacturing facilities, we raised net proceeds of $81.9 million during the year ended December 31, 2020 from an 
at-the market offering and a public offering of our ordinary shares.  We will require additional capital in the future, which 
we may raise through equity offerings, debt financings, marketing and distribution arrangements and other collaborations, 
strategic alliances and licensing arrangements or other sources to enable us to complete the development and potential 
commercialization of our product candidates. Furthermore, we expect to continue incurring costs associated with being a 
public company. Adequate additional financing may not be available to us on acceptable terms, or at all. Our failure to raise 
capital as and when needed would have a negative effect on our financial condition and our ability to pursue our business 
strategy. In addition, attempting to secure additional financing may divert the time and attention of our management from 
day-to-day activities and harm our product candidate development efforts. If we are unable to raise capital when needed or 
on acceptable terms, we would be forced to delay, reduce or eliminate certain of our research and development programs.

Based on our cash and cash equivalents at December 31, 2021 and the research funding and milestone payments 

we expect to receive under the Collaboration Agreement, we estimate that such funds will be sufficient to enable us to fund 
our operating expenses and capital expenditure requirements through the second quarter of 2023.  We have based these 
estimates on assumptions that may prove to be wrong, and we may use our available capital resources sooner than we 
currently expect. See “Liquidity and Capital Resources.” Because of the numerous risks and uncertainties associated with 
the development of our product candidates, any future product candidates, our platform and technology and because the 
extent to which we may enter into collaborations with third parties for development of any of our product candidates is 
unknown, we are unable to estimate the amounts of increased capital outlays and operating expenses associated with 
completing the research and development of our product candidates. 

Adequate additional funds may not be available to us on acceptable terms, or at all. To the extent that we raise

additional capital through the sale of equity or convertible securities, your ownership interest will be diluted, and the terms
of these securities may include liquidation or other preferences that adversely affect your rights as a shareholder. Any
future debt financing or preferred equity or other 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 and may require the issuance of warrants, which could potentially dilute your ownership interests.

110

Table of Contents

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

Because of the numerous risks and uncertainties associated with drug development, we are unable to predict the
timing or amount of increased expenses or when or if we will be able to achieve or maintain profitability. Even if we are
able to generate revenue from product sales, we may not become profitable. If we fail to become profitable or are unable to
sustain profitability on a continuing basis, then we may be unable to continue our operations at planned levels and be
forced to reduce or terminate our operations.

Highlights and Recent Developments

Recent Clinical Development Highlights and Anticipated 2022 Milestones

Botaretigene Sparoparvovec (AAV-RPGR) for the Treatment of XLRP:  

● MeiraGTx, in collaboration with Janssen, is dosing and enrolling patients in the Phase 3 Lumeos clinical trial of

botaretigene sparoparvovec.

● We received a $30 million payment from Janssen for a clinical milestone in the Phase 3 Lumeos trial of

botaretigene sparoparvovec.

AAV-hAQP1 for the Treatment of Grade 2/3 Radiation-Induced Xerostomia:  

● We reported positive preliminary data from the Phase 1 AQUAx clinical trial in December 2021.

o Clinically meaningful improvements in xerostomia symptoms and disease burden in two validated

o

Patient-Reported Outcome (PRO) measures were demonstrated.
6 of the 7 participants through 90-day assessments following treatment achieved clinically meaningful
improvement in symptoms using both the McMaster Global Rate of Change PRO and the Xerostomia
Questionnaire.

o One participant with the maximum response evaluable at 12 months has now reached 24 months and the

same level of response/xerostomia symptom improvement was maintained.

o AAV-hAQP1 appears safe and well-tolerated at each dose tested.

● We completed treatment of patients in all four cohorts of the unilateral dose escalation (n=12) Phase 1 AQUAx

trial in the fourth quarter of 2021.

● Four cohorts of dose escalating bilateral treatment (n=12) were added to the protocol to further assess potential

efficacy. Treatment of all bilateral patients was completed in the first quarter of 2022.

● Based on the safety and efficacy profile of AAV-hAQP1 in the AQUAx Phase 1 study and regulatory precedent,

we intend to initiate a randomized, double-blind, placebo-controlled Phase 2 study evaluating two active doses of
AAV-hAQP1 by the end of 2022.

Riboswitch Gene Regulation Platform:

● We presented data from our proprietary riboswitch gene regulation platform in December 2021 demonstrating

regulation of multiple therapeutic genes in multiple tissues in vitro and in vivo, as well as in vivo models showing
dose responsive physiological effects indicative of potential therapeutic activity.

● Transformative riboswitch technology platform has unprecedented dynamic range of greater than 5,000-fold.
● Proprietary technology platform allows precise and specific control of gene therapy expression levels via dose-

response to orally delivered small molecules.

● We have developed a library of novel small molecules that tightly regulate aptamer driven cassettes with drug

properties designed specifically for the regulation of different genes in different tissues.

● This technology is applicable to the control of any gene in the context of any vector, including both gene editing

and RNA editing.

111

Table of Contents

AAV-GAD for the Treatment of Parkinson’s Disease:

● We anticipate filing an IND in the coming weeks, with material that has been manufactured with our proprietary

manufacturing process at our cGMP manufacturing facility in London.

AAV-CNGB3 and AAV-CNGA3 for the Treatment of ACHM:  

● With partner Janssen, we expect to initiate later stage clinical studies in 2022 for both AAV-CNGB3 and AAV-

CNGA3 for the treatment of ACHM associated with mutations in the CNGB3 and CNGA3 genes.

Manufacturing and Process Development:

● We successfully manufactured cGMP material for six different clinical programs, including three for Janssen-
partnered programs, highlighting the breadth and expertise of our manufacturing and quality infrastructure.

Components of Our Results of Operations

License Revenue

Our license revenue consisted of the amortization of the upfront and milestone payments we received in

connection with the Collaboration Agreement.

Operating Expenses

Our operating expenses since inception have consisted primarily of general and administrative costs and research

and development costs.

General and Administrative Expenses

General and administrative expenses consist primarily of salaries and other related costs, including share-based
compensation, for personnel in our executive, finance, legal, business development and administrative functions. General
and administrative expenses also include legal fees relating to intellectual property and corporate matters; professional fees
for accounting, auditing, tax and consulting services; insurance costs; travel expenses; and office facility-related expenses,
which include direct depreciation costs.

We expect that our general and administrative expenses will increase in the future as we increase our personnel

headcount to support increased research and development activities. We have also incurred and expect to continue to incur
increased expenses associated with being a public company, including costs of accounting, audit, legal, regulatory and tax-
related services associated with maintaining compliance with Nasdaq and SEC requirements; director and officer insurance
costs; and investor and public relations costs.

Research and Development Expenses

Research and development expenses consist primarily of costs incurred for our research activities, including our

discovery efforts, and the development of our product candidates, and include:

● employee-related expenses, including salaries, benefits and travel of our research and development

personnel;

● expenses incurred in connection with third-party vendors that conduct clinical and preclinical studies and

manufacture the drug product for the clinical trials and preclinical activities;

112

Table of Contents

● acquisition of in process research and development;

● costs associated with clinical and preclinical activities including costs related to facilities, supplies, rent,

insurance, certain legal fees, share-based compensation, and depreciation; and

● expenses incurred with the development and operation of our manufacturing facilities.

We expense research and development costs as incurred.

Research and development activities are central to our business model. We expect that our research and
development expenses will continue to increase substantially for the foreseeable future as we initiate additional preclinical
and clinical trials of our existing product candidates, including the ongoing Phase 3 Lumeos trial of botaretigene
sparoparvovec for the treatment of patients with XLRP and the initiation of a Phase 3 clinical trial of AAV-RPE65 for the
treatment of retinal dystrophy associated with mutations in the RPE65 gene, and continue to discover and develop
additional product candidates. Certain of these increases in research and development costs will be partially offset by the
research funding provided in connection with the Collaboration Agreement we entered into in January 2019. In addition,
we expect to continue incurring increasing research and development costs associated with our clinical activities for AAV-
hAQP1 for the treatment of radiation-induced xerostomia and xerostomia associated with Sjogren’s syndrome.

We cannot determine with certainty the duration and costs of future clinical trials of our product candidates or any

other product candidate we may develop or if, when, or to what extent we will generate revenue from the
commercialization and sale of any product candidate for which we obtain marketing approval. We may never succeed in
obtaining marketing approval for any product candidate. The duration, costs and timing of clinical trials and development
of our existing product candidates or any other product candidate we may develop will depend on a variety of factors,
including:

● the scope, rate of progress, expense and results of clinical trials of our existing product candidates, as well as
of any future clinical trials of other product candidates and other research and development activities that we
may conduct;

● uncertainties in clinical trial design and patient enrollment rates;

● the actual probability of success for our product candidates, including the safety and efficacy, early clinical

data, competition, manufacturing capability and commercial viability;

● significant and changing government regulation and regulatory guidance;

● the timing and receipt of any marketing approvals; and

● the expense of filing, prosecuting, defending and enforcing any patent claims and other intellectual property

rights.

A change in the outcome of any of these variables with respect to the development of a product candidate could

mean a significant change in the costs and timing associated with the development of that product candidate. For example,
if the FDA or another U.S. or foreign regulatory authority were to require us to conduct clinical trials beyond those that we
anticipate will be required for the completion of clinical development of a product candidate, or if we experience
significant delays in our clinical trials due to patient enrollment or other reasons, we would be required to expend
significant additional financial resources and time on the completion of clinical development.

113

Table of Contents

Other non-operating income (expense)

Other non-operating income (expense) includes the following:

Foreign currency (loss) gain

Our consolidated financial statements are presented in U.S. dollars, which is our reporting currency. The financial

position and results of operations of our subsidiaries MeiraGTx UK II Limited, MeiraGTx Ireland DAC, MeiraGTx
Netherlands B.V., MeiraGTx B.V. and MeiraGTx Belgium are measured using the foreign subsidiaries’ local currency as
the functional currency. These entities’ cash accounts holding U.S. dollars and intercompany payables and receivables are
remeasured based upon the exchange rate at the date of remeasurement with the resulting gain or loss included in the
consolidated statement of operations and comprehensive loss. Expenses of such subsidiaries have been translated into U.S.
dollars at average exchange rates prevailing during the period. Assets and liabilities have been translated at the rates of
exchange on the consolidated balance sheet date. The resulting translation gain and loss adjustments are recorded directly
as a separate component of shareholders’ equity and as other comprehensive loss on the consolidated statement of
operations and comprehensive loss.

Other comprehensive income (loss)

Other comprehensive income (loss) includes the following:

Foreign currency translation gain (loss)

Expenses of subsidiaries have been translated into U.S. dollars at average exchange rates prevailing during the

period. Assets and liabilities have been translated at the rates of exchange on the consolidated balance sheet date. The
resulting translation gain and loss adjustments are recorded directly as a separate component of shareholders’ equity and as
other comprehensive loss on the consolidated statements of operations and comprehensive loss.

Critical Accounting Policies and Use of Estimates

Management’s discussion and analysis of our financial condition and results of operations is based on our

consolidated financial statements, which have been prepared in accordance with GAAP. The preparation of these
consolidated financial statements requires us to make estimates and judgements that affect the reporting amounts of assets,
liabilities and expenses and the disclosure of contingent assets and liabilities in our consolidated financial statements. On
an ongoing basis, we evaluate our estimates and judgements, including those related to license and collaboration revenue,
share-based compensation and accrued expenses. We base our estimates on historical experience, known trends and events
and various other factors that we believe to be reasonable under the circumstances, the results of which form the basis for
making judgements about the carrying value of assets and liabilities that are not readily apparent from our sources. Actual
results may differ from these estimates under different assumptions.

While our significant accounting policies are described in more detail in the notes to our financial statements

appearing in this Form 10-K, we believe that the following accounting policies are those most critical to the judgments and
estimates used in the preparation of our financial statements.

Collaboration Arrangements

We evaluate our collaborative arrangements pursuant to Accounting Standards Codification (“ASC”) 808,

Collaborative Arrangements (“ASC 808”) and ASC 606, Revenue from Contracts with Customers (“ASC 606”). We
consider the nature and contractual terms of collaborative arrangements and assess whether the arrangement involves a
joint operating activity pursuant to which we are an active participant and are exposed to significant risks and rewards with
respect to the arrangement. If we are an active participant and exposed to significant risks and rewards with respect

114

Table of Contents

to the arrangement, we account for the arrangement as a collaboration under ASC 808. To date, we have entered into two
separate collaboration agreements, both of which are with Janssen, which were determined to be within the scope of ASC
808.

ASC 808 does not address recognition or measurement matters related to collaborative arrangements. Payments

between participants pursuant to a collaborative arrangement that are within the scope of other authoritative accounting
literature on income statement classification are accounted for using the relevant provisions of that literature. If the
payments are not within the scope of other authoritative accounting literature, the income statement classification for the
payments is based on an analogy to authoritative accounting literature or if there is no appropriate analogy, a reasonable,
rational and consistently applied accounting policy election. Payments received from a collaboration partner to which this
policy applies may include upfront payments in respect of a license of intellectual property, development and
commercialization-based milestones, and royalties.

Revenue Recognition

Arrangements with collaborators may include licenses to intellectual property, research and development services,
manufacturing services for clinical and commercial supply, and participation on joint steering committees. We evaluate the
promised goods or services to determine which promises, or group of promises, represent performance obligations. In
contemplation of whether a promised good or service meets the criteria required of a performance obligation, we consider
the stage of development of the underlying intellectual property, the capabilities and expertise of the customer relative to
the underlying intellectual property, and whether the promised goods or services are integral to or dependent on other
promises in the contract. When accounting for an arrangement that contains multiple performance obligations, we must
develop judgmental assumptions, which may include market conditions, reimbursement rates for personnel costs,
development timelines and probabilities of regulatory success to determine the stand-alone selling price for each
performance obligation identified in the contract.

When we conclude that a contract should be accounted for as a combined performance obligation and recognized

over time, we must then determine the period over which revenue should be recognized and the method by which to
measure revenue. We generally recognize revenue using a cost-based input method.

The Collaboration Agreement is accounted for under ASC 808, however, as ASC 808 does not address
recognition or measurement matters such as determining the appropriate unit of accounting or when the recognition criteria
are met, we account for the consideration received from Janssen in accordance with ASC 606. In accordance with ASC
606, we recognize revenue when the customer or collaborator obtains control of promised goods or services, in an amount
that reflects the consideration which we expect to receive in exchange for those goods or services. To determine revenue
recognition for arrangements that we determine are within the scope of ASC 606, we perform 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 within the contract; and

v.

recognize revenue when (or as) the entity satisfies a performance obligation.

We only apply the five-step model to contracts when we determine that it is probable we will collect the

consideration we are entitled to in exchange for the goods or services we transfer to the customer.

115

Table of Contents

At contract inception, once the contract is determined to be by analogy within the scope of ASC 606, we assess
the goods or services promised within the contract to determine whether each promised good or service is a performance
obligation. The promised goods or services for our arrangements typically consist of a license to our intellectual property
and research, development and manufacturing services. We may provide options to additional items in such arrangements,
which are accounted for as separate contracts when the customer elects to exercise such options, unless the option provides
a material right to the customer. Performance obligations are promises in a contract to transfer a distinct good or service to
the customer that (i) the customer can benefit from on its own or together with other readily available resources, and (ii) is
separately identifiable from other promises in the contract. Goods or services that are not individually distinct performance
obligations are combined with other promised goods or services until such combined group of promises meet the
requirements of a performance obligation.

We determine transaction prices based on the amount of consideration we expect to receive for transferring the
promised goods or services in the contract. Consideration may be fixed, variable, or a combination of both. At contract
inception for arrangements that include variable consideration, we estimate the probability and extent of consideration we
expect to receive under the contract utilizing either the most likely amount method or expected amount method, whichever
best estimates the amount expected to be received. We then consider any constraints on the variable consideration and
include in the transaction price variable consideration to the extent it is deemed probable that a significant reversal in the
amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is
subsequently resolved.

We then allocate the transaction price to each performance obligation based on the relative standalone selling price

and recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation
when (or as) control is transferred to the customer and the performance obligation is satisfied. For performance obligations
which consist of licenses and other promises, we utilize judgment to assess the nature of the combined performance
obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if
over time, the appropriate method of measuring progress. We evaluate the measure of progress each reporting period and, if
necessary, adjust the measure of performance and related revenue recognition.

We record amounts as accounts receivable when the right to consideration is deemed unconditional. When

consideration is received, or such consideration is unconditionally due, from a customer prior to transferring goods or
services to the customer under the terms of a contract, a contract liability is recorded as deferred revenue.

Amounts received prior to satisfying the revenue recognition criteria are recognized as deferred revenue in our
consolidated balance sheet. Amounts expected to be recognized as revenue within the 12 months following the balance
sheet date are classified as deferred revenue – related party, current. Amounts not expected to be recognized as revenue
within the 12 months following the balance sheet date are classified as deferred revenue – related party.

Income Taxes

Since we have recurring losses and a valuation allowance against deferred tax assets, there was no tax expense 

(benefit) for the years ended December 31, 2021 and 2020.  

As of December 31, 2021, we had federal and state net operating losses (“NOLs”) in the United States of 

approximately $73.6 million and $73.3 million, respectively, and carryforward tax losses in the UK of approximately 
$164.3 million which are available to reduce future taxable income.  The U.S. federal and state NOLs incurred prior to 
January 1, 2018 in the amount of approximately $6.8 million and $6.7 million, respectively, will begin to expire in 2036.  
The U.S. NOLs incurred after December 31, 2017 and the UK carryforward tax losses will be indefinitely carried forward.  
As of December 31, 2021, we also had orphan drug and research and development credits in the U.S. in the amount of $6.7 
million, which will begin to expire in 2036 and research and development credits in the UK in the amount of $1.5 million, 
which can be carried forward indefinitely.

116

Table of Contents

Research and Development

Research and development costs are charged to expense as incurred.  These costs include, but are not limited to, 

employee-related expenses, including salaries, benefits and travel of our research and development personnel; expenses 
incurred under agreements with contract research organizations and investigative sites that conduct clinical and preclinical 
studies and manufacture the drug product for the clinical studies and preclinical activities; acquisition of in-process 
research and development; facilities; supplies; rent, insurance, certain legal fees, stock-based compensation, depreciation 
and other costs associated with clinical and preclinical activities and regulatory operations.  Research funding under 
collaboration agreements and refundable research and development credits / tax credits received are recorded as an offset to 
these costs.

Costs for certain development activities, such as outside research programs funded by us, are recognized based on 
an evaluation of the progress to completion of specific tasks with respect to their actual costs incurred.  Payments for these 
activities are based on the terms of the individual arrangements, which may differ from the pattern of costs incurred, and 
are reflected in the financial statements as prepaid or accrued research and development expense, as the case may be.

Share-Based Compensation

Options

We grant share options to employees, non-employee members of our board of directors and non-employee 

consultants as compensation for services performed.  Employee and non-employee members of the board of directors’ 
awards of share-based compensation are accounted for in accordance with ASC 718, Compensation—Stock Compensation, 
or ASC 718.  ASC 718 requires all share-based payments to employees and non-employee directors, including grants of 
share options, to be recognized in the statement of operations and comprehensive loss based on their grant date fair values.  
The grant date fair value of share options is estimated using the Black-Scholes option valuation model.

Using this model, fair value is calculated based on assumptions with respect to (i) the fair value of our ordinary

shares on the grant date; (ii) expected volatility of our ordinary share price, (iii) the periods of time over which employees
and members of our board of directors are expected to hold their options prior to exercise (expected term), (iv) expected
dividend yield on our ordinary shares, and (v) risk-free interest rates.

Our ordinary shares were not traded on a public exchange prior to our IPO in June 2018.  Therefore, we believe 
that our future volatility will differ materially during the expected term from the volatility that would be calculated from 
our historical share prices to date.  Consequently, expected volatility is based on an analysis of guideline companies in 
accordance with ASC 718.  The expected dividend yield is zero as we have never paid dividends and do not currently 
anticipate paying any in the foreseeable future.  Risk-free interest rates are based on quoted U.S. Treasury rates for 
securities with maturities approximating the option’s expected term. 

Restricted Share Units

The Company grants restricted share units (“RSUs”) to employees, non-employee members of our board of
directors and non-employee consultants as compensation for services performed. Awards of RSUs are accounted for in
accordance with ASC 718, Compensation - Stock Compensation, or ASC 718. ASC 718 requires all share-based payments
to employees and non-employee directors, including grants of RSUs, to be recognized in the consolidated statement of
operations and comprehensive loss based on their grant date fair values. The grant date fair value of RSUs is determined
using the closing market price of the Company’s ordinary shares on the date of grant.

117

Table of Contents

Restricted Shares

In connection with certain employment, service and research agreements, we have granted restricted ordinary 

shares as compensation.  The shares are recognized in the statement of operations and comprehensive loss based on their 
grant date fair values.  Compensation cost relating to share grants with service-based graded vesting schedules is 
recognized based on the vesting schedule.

Results of Operations

Comparison of the Years Ended December 31, 2021 and 2020

License revenue - related party
Operating expenses:

General and administrative
Research and development

Total operating expenses

Loss from operations
Other non-operating income (expense)
Foreign currency (loss) gain
Interest income
Interest expense

Net loss
Other comprehensive income (loss):
Foreign currency translation gain (loss)
Total comprehensive loss

License Revenue

2021

$

 37,701

2020
(in thousands)
 15,563
$

Change

$

 22,138

 43,765
 67,128
 110,893
 (73,192)

 (6,293)
 212
 (288)
 (79,561)

 44,207
 33,910
 78,117
 (62,554)

 3,426
 1,275
 (139)
 (57,992)

 (442)
 33,218
 32,776
 (10,638)

 (9,719)
 (1,063)
 (149)
 (21,569)

 2,226

$

 (77,335) $

 (3,103)
 (61,095) $

 5,329
 (16,240)

License revenue was $37.7 million for the year ended December 31, 2021, compared to $15.6 million for the year

ended December 31, 2020. This increase represents the increased amortization of the $100.0 million upfront payment as
well as amortization of the $30.0 million milestone payment received in connection with the Collaboration Agreement.

General and Administrative Expenses

General and administrative expenses were $43.8 million for the year ended December 31, 2021, compared to
$44.2 million for the year ended December 31, 2020.  The decrease of $0.4 million was primarily due to a decrease in 
share-based compensation of $1.3 million and payroll and payroll related costs of $0.8 million, which was partially offset 
by increases in insurance of $0.3 million, facility costs of $0.9 million, professional fees of $0.2 million and $0.3 of other 
general and administrative expenses.

118

    
    
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Research and Development Expenses

Research and development expenses for the years ended December 31, 2021 and 2020 were as follows (in

millions):

Gross research and development expenses
Janssen reimbursements
Tax incentive reimbursement
Research and development expenses

2021
 141.5     $
 (69.0)
 (5.4)
 67.1

$

2020

Change

 96.6     $
 (57.4)
 (5.3)
 33.9

$

 44.9
 (11.6)
 (0.1)
 33.2

    $

$

Gross research and development expenses for the year ended December 31, 2021 increased $44.9 million as

compared to the prior year primarily due to an increase of $21.8 million in research and clinical trial costs related to our
ophthalmology, neurology, gene regulation and salivary gland programs, $7.6 million in manufacturing of our clinical trial
materials, $10.3 million in payroll and payroll related costs, $3.6 million in depreciation, $1.8 million in rent and facility
costs, $3.7 million in share-based compensation and $2.2 million in other research costs, which was partially offset by a
decrease of $6.2 million in acquired research and development costs.

Reimbursements under the Collaboration Agreement for the year ended December 31, 2021 increased $11.6

million as compared to the prior year primarily due to an increase in activity in the programs licensed under the
Collaboration Agreement.

Tax incentive reimbursement for the year ended December 31, 2021 increased $0.1 million as compared to the

prior year primarily due to the increase in allowable research and development costs.

Foreign Currency (Loss) Gain

Foreign currency loss was $6.3 million for the year ended December 31, 2021 compared to a gain of $3.4 million

for the year ended December 31, 2020.  The change of $9.7 million was primarily due to a weakening of the pound sterling 
and euro against the U.S. dollar and an increase in the amounts due from foreign subsidiaries in 2021.

Interest Income

Interest income was $0.2 million for the year ended December 31, 2021 compared to $1.3 million for the year 
ended December 31, 2020.  The decrease was due to a lower average cash balance and lower interest rates during 2021.

Other Comprehensive Income (Loss) – Foreign Currency Translation Gain (Loss)

Foreign currency translation adjustments resulted in a translation gain of $2.2 million for the year ended
December 31, 2021 compared to a translation loss of $3.1 million for the year ended December 31, 2020. The change in
the amount of $5.3 million was primarily due to a strengthening of the U.S. dollar against the pound sterling and euro
during the year ended December 31, 2021.

Liquidity and Capital Resources

Since our inception, we have incurred significant operating losses. For the year ended December 31, 2021, we

used $10.5 million in cash flows from operations. We did not generate positive cash flows from operations during the year
and there are no assurances that we will generate positive cash flows in the future. Additionally, there are no assurances
that we will be successful in obtaining an adequate level of financing for the development and

119

 
 
 
 
 
 
 
 
 
Table of Contents

commercialization of our product candidates. We expect to incur significant expenses and operating losses for the
foreseeable future as we advance the preclinical and clinical development of our product candidates. We expect that our
research and development and general and administrative costs will increase in connection with conducting preclinical
studies and clinical trials for our product candidates, building out internal capacity to have products manufactured to
support preclinical studies and clinical trials, expanding our intellectual property portfolio, and providing general and
administrative support for our operations. In addition, on August 4, 2020 we entered into agreements to acquire the
buildings for our second cGMP viral vector manufacturing facility and our first cGMP plasmid and DNA production
facility in Shannon, Ireland to expand our manufacturing and supply chain capabilities. We closed on the acquisition of the
first building in August 2020 and closed on the second building in January 2021. As a result of these incurred and expected
expenses we will need additional capital to fund our operations, which we may obtain from additional equity or debt
financings, collaborations, licensing arrangements, or other sources.

We do not currently have any approved products and have never generated any revenue from product sales. We

have historically financed our operations primarily through cash on hand and proceeds from the sale of our ordinary shares,
series A ordinary shares and convertible preferred C shares. In March 2019 and December 2021, we received a
$100.0 million upfront payment and a $30.0 million milestone payment, respectively, in connection with the Collaboration
Agreement, which also provides us with research funding, and we are eligible to receive additional potential milestone
payments and royalties.

Based on our current cash, cash equivalents and accounts receivable – related party at December 31, 2021 and the

research funding and milestone payments we expect to receive under the Collaboration Agreement, we estimate that we
will be able to fund our operating expenses and capital expenditure requirements through the second quarter of 2023. We
have based these estimates on assumptions that may prove to be wrong, and we could utilize our available capital resources
sooner than we expect.

Cash Flows

We had $137.7 million and $209.5 million of cash and cash equivalents as of December 31, 2021 and 2020,

respectively.

The following table summarizes our sources and uses of cash for the period presented:

Net cash used in operating activities
Net cash used in investing activities
Net cash provided by financing activities
Decrease in cash

Operating Activities

For the Years Ended December 31, 

2021

2020

(in thousands)

    $

$

 (10,530)    $
 (61,717)
 1,708
 (70,539)

$

 (63,967)    
 (37,020)
 82,728
 (18,259)

During the year ended December 31, 2021, our cash used in operating activities of $10.5 million was primarily
due to our net loss of $79.6 million as we incurred expenses associated with research activities on our clinical programs,
manufacturing of our clinical trial materials, preclinical research programs and general and administrative expenses. The
net loss included non-cash charges of $37.8 million, which consisted of $20.8 million of share-based compensation, $6.3
million of a foreign currency loss, $7.9 million of depreciation and amortization, $1.0 million of shares issued in
connection with a license agreement, $1.0 million of shares issued in connection with an asset acquisition, $0.4 million of a
fair value adjustment, $0.2 million of net change in right-of-use assets and liabilities, $0.1 million of amortization of
interest on asset retirement obligations and $0.1 million of loss on disposal of equipment, furniture and fixtures.
Additionally, operating assets, consisting of accounts receivable-related party, prepaid expenses, tax incentive

120

 
 
 
 
 
 
 
Table of Contents

receivable, other current assets and other assets, decreased by $17.3 million and operating liabilities, consisting of accounts
payable, accrued expenses, and deferred revenue-related party, increased by $14.0 million.

During the year ended December 31, 2020, our cash used in operating activities of $64.0 million was primarily
due to our net loss of $58.0 million as we incurred expenses associated with research activities on our clinical programs,
manufacturing of our clinical trial materials, preclinical research programs and general and administrative expenses. The
net loss included non-cash charges of $26.7 million, which consisted of $7.7 million for acquired research and
development, $18.4 million of share-based compensation, $3.4 million of a foreign currency gain and $4.1 million of
depreciation and amortization. Additionally, operating assets, consisting of accounts receivable-related party, prepaid
expenses, tax incentive receivable, security deposits and other current assets, increased by $20.8 million and operating
liabilities, consisting of accounts payable, accrued expenses, and deferred revenue-related party, decreased by $11.9
million.

Investing Activities

Net cash used in investing activities for the year ended December 31, 2021 of $61.7 million consisted primarily of

$8.9 million in payments for the acquisition of the second building and long-term lease of our manufacturing facility in
Ireland, $6.5 million in connection with equity method and other investments and $46.3 million for purchases of property
and equipment for our manufacturing, laboratory and process development facilities and buildout costs of our new facilities
in Ireland.

Net cash used in investing activities for the year ended December 31, 2020 of $37.0 million consisted primarily of

$14.0 million in payments for the acquisition of the first building and long-term lease for our manufacturing facilities in
Ireland, $2.1 million for the purchase of an intangible asset and $20.9 million for purchases of property and equipment for
our manufacturing, laboratory and process development facilities and buildout costs of our facilities in the UK and Ireland.

Financing Activities

Net cash provided by financing activities was $1.7 million for the year ended December 31, 2021, which is

primarily from the exercise of share options.

Net cash provided by financing activities was $82.7 million for the year ended December 31, 2020, which
consisted primarily of gross proceeds of $87.0 million from an at-the market offering and a public offering of our ordinary
shares, which was offset by $5.1 million in offering costs, as well as $0.8 million from the exercise of share options.

Off-Balance Sheet Arrangements

We have not entered into any off-balance sheet arrangements under applicable SEC rules and do not have any

holdings in variable interest entities.

Emerging Growth Company Status

The Jumpstart Our Business Startups Act of 2012, (the “JOBS Act”), permits an “emerging growth company,”

which we are, to take advantage of an extended transition period to comply with new or revised accounting standards
applicable to public companies until those standards would otherwise apply to private companies. We have elected to take
advantage of this extended transition period.

121

Table of Contents

ITEM 7A.

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

We are exposed to market risks in the ordinary course of our business.  These risks primarily include foreign 

currency exchange rate sensitivities and interest rate risk.

We currently operate in the United States, the United Kingdom, and the European Union.  Our activities in these 

jurisdictions expose us to currency exchange rate fluctuations primarily between the U.S. Dollar and the British Pound 
Sterling and Euro.  When the U.S. Dollar strengthens against these currencies, the U.S. Dollar value of non-U.S. Dollar 
based losses increases.  To the extent that our international activities recorded in local currencies increase in the future, our 
exposure to fluctuations in currency exchange rates will correspondingly increase. With respect to our foreign currency 
exposures as of December 31, 2021, a 10% unfavorable movement in foreign currency exchange rates would not expose us 
to a significant increase in net loss. We have not engaged in derivative financial instruments as a means of hedging this
financial statement risk.

We had cash and cash equivalents of $137.7 million as of December 31, 2021, which consist of non-interest-

bearing and interest-bearing bank deposits.  Other than accounts payable and accrued expenses incurred in the ordinary 
course of business, we had no other debt outstanding as of December 31, 2021.  We had cash and cash equivalents of 
$209.5 million as of December 31, 2020, which consisted of non-interest-bearing and interest-bearing bank deposits.  Such 
interest-earning instruments carry a degree of interest rate risk; however, historical fluctuations in interest income have not 
been significant for us.

122

Table of Contents

ITEM 8.

FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
FOR THE YEARS ENDED DECEMBER 31, 2021 AND 2020
INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm (PCAOB ID 42)

Consolidated:

Balance Sheets
Statements of Operations and Comprehensive Loss
Statements of Shareholders' Equity
Statements of Cash Flows
Notes to Consolidated Financial Statements

F-1

F-2

F-3
F-4
F-5
F-6
F-7

Table of Contents

Report of Independent Registered Public Accounting Firm

To the Shareholders and the Board of Directors of MeiraGTx Holdings plc and Subsidiaries

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of MeiraGTx Holdings plc and Subsidiaries (the
“Company”) as of December 31, 2021 and 2020, the related consolidated statements of operations and comprehensive loss,
shareholders' equity and cash flows for each of the two years in the period ended December 31, 2021, and the related notes
(collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements
present fairly, in all material respects, the financial position of the Company at December 31, 2021 and 2020, and the
results of its operations and its cash flows for each of the two years in the period ended December 31, 2021, in conformity
with U.S. generally accepted accounting principles.

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 audit 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.

/s/ Ernst & Young LLP

We have served as the Company’s auditor since 2016.

Jericho, New York
March 10, 2022

F-2

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
(in thousands, except share and per share amounts)

December 31, 
2021

December 31, 
2020

ASSETS

CURRENT ASSETS:
Cash and cash equivalents
Accounts receivable - related party
Prepaid expenses
Tax incentive receivable
Other current assets

Total Current Assets

Property, plant and equipment, net
Intangible assets, net
In-process research and development
Other assets
Equity method and other investments
Right-of-use assets - operating leases, net
Right-of-use assets - finance leases, net

TOTAL ASSETS

LIABILITIES AND SHAREHOLDERS' EQUITY

CURRENT LIABILITIES:
Accounts payable
Accrued expenses
Lease obligations, current
Deferred revenue - related party, current
Other current liabilities

Total Current Liabilities

Deferred revenue - related party
Lease obligations
Asset retirement obligations
Deferred income tax liability
Other long-term liabilities
TOTAL LIABILITIES

COMMITMENTS (Note 14)

SHAREHOLDERS' EQUITY:
Ordinary Shares, $0.00003881 par value, 1,288,327,750 
authorized, 44,548,925 and 44,189,150 shares issued and
outstanding at December 31, 2021 and 2020, respectively
Capital in excess of par value
Accumulated other comprehensive loss
Accumulated deficit

Total Shareholders' Equity
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY

$

$

$

$

137,703
22,384
8,102
12,634
2,420
183,243

75,860
1,791
783
1,404
6,656
22,782
27,645
320,164

15,348
27,586
3,374
21,820
—
68,128

43,046
20,359
2,081
196
953
134,763

2
528,659
(2,671)
(340,589)
185,401
320,164

$

$

$

$

209,520
38,479
7,082
12,930
4,565
272,576

44,042
2,119
852
1,026
—
21,486
21,596
363,697

7,134
20,861
2,583
23,545
24
54,147

49,297
19,666
1,814
214
—
125,138

2
504,482
(4,897)
(261,028)
238,559
363,697

See Notes to Consolidated Financial Statements

F-3

    
    
 
   
  
 
   
  
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
(in thousands, except share and per share amounts)

For the Years Ended December 31, 
2020

2021

License revenue - related party

$

37,701

$

15,563

Operating expenses:

General and administrative
Research and development

Total operating expenses
Loss from operations
Other non-operating income (expense):

Foreign currency (loss) gain
Interest income
Interest expense

Net loss
Other comprehensive income (loss):
Foreign currency translation gain (loss)
Total comprehensive loss

Net loss
Basic and diluted net loss per ordinary share
Weighted-average number of ordinary shares outstanding

43,765
67,128
110,893
(73,192)

(6,293)
212
(288)
(79,561)

2,226
(77,335)

(79,561)
(1.80)
44,139,655

$

$
$

$

$
$

44,207
33,910
78,117
(62,554)

3,426
1,275
(139)
(57,992)

(3,103)
(61,095)

(57,992)
(1.54)
37,724,189

See Notes to Consolidated Financial Statements

F-4

    
    
 
 
 
 
 
 
 
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
FOR THE YEARS ENDED DECEMBER 31, 2021 AND 2020
(in thousands, except share amounts)

Ordinary
Shares

     Amount

Capital in Excess
of Par Value

Accumulated Other
Comprehensive
Loss

Accumulated

     Deficit

Total
Shareholders'
Equity

Balance at January 1, 2020
Issuance of shares in connection with asset acquisition
Issuance of shares in at-the-market offering, net of issuance costs of
$506
Issuance of shares in connection with public placement, net of
issuance costs of $4,635
Exercise of share options
Share-based compensation
Other comprehensive loss
Net loss
Balance at December 31, 2020
Issuance of shares in connection with equity method and other
investments
Issuance of shares in connection with asset acquisitions
Exercise of share options
Share-based compensation
Other comprehensive income
Net loss
Balance at December 31, 2021

36,791,906
544,500

$

993,448

5,750,000
109,296

—  
—  
—  

44,189,150

75,000
98,137
186,638

—  
—
—  
$

44,548,925

1

$
—  

—  

1

—  
—  
—  
—  

2

—  
—  
—  
—  
—
—  
$

2

395,630
7,685

$

12,657

69,252
841
18,417

—  
—  

504,482

1,165
519
1,709
20,784
—
—  
$

528,659

See Notes to Consolidated Financial Statements

F-5

(1,794)

$ (203,036)

$
—  

190,801
7,685

—  

12,657

—  

—  

—  
—  
—  

(3,103)

—  

(4,897)

—  
—  
—  
—  

(57,992)
(261,028)

—  
—  
—  
—  

—  

—  
—  
—  
—  
—
(79,561)
$ (340,589)

$

2,226

(2,671)

69,253
841
18,417
(3,103)
(57,992)
238,559

1,165
519
1,709
20,784
2,226
(79,561)
185,401

    
    
    
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)

Cash flows from operating activities:

Net loss
Adjustments to reconcile net loss to net cash used in operating activities:

Share-based compensation expense
Foreign currency loss (gain)
Depreciation and amortization
Net change in right-of-use assets and liabilities
Loss on disposal of equipment, furniture and fixtures
Gain on termination of lease liability
Loss on equity method investment
Amortization of interest on asset retirement obligations
Issuance of shares in connection with license agreement
Issuance of shares in connection with asset acquisition
Fair value adjustment

(Increase) decrease in operating assets:
Accounts receivable - related party
Prepaid expenses
Tax incentive receivable
Other current assets
Other assets

Increase (decrease) in operating liabilities:

Accounts payable
Accrued expenses
Other current liabilities
Deferred revenue - related party
Net cash used in operating activities

Cash flows from investing activities:

Purchase of property, plant and equipment
Payment for right-of-use asset
Purchase of intangible asset
Equity method and other investments

Net cash used in investing activities

Cash flows from financing activities:

Payments on lease obligations - financing leases
Exercise of share options
Proceeds from the issuance of ordinary shares
Issuance costs in connection with ordinary shares

Net cash provided by financing activities

Net decrease in cash and cash equivalents
Effect of exchange rate changes on cash
Cash and cash equivalents at beginning of year
Cash and cash equivalents at end of year

Supplemental disclosure of non-cash transactions:

Issuance of shares in connection with equity method and other investments
Fixed asset acquisition included in accounts payable and accrued expenses at end of year
Right-of-use assets obtained in exchange for lease liabilities
Asset retirement obligations in connection with leases
Issuance of shares in connection with asset acquisition

Supplemental disclosure of cash flow information:

Cash paid for interest

For the Years Ended December 31, 
2020
2021

$

(79,561)

$

(57,992)

20,784
6,293
7,873
161
56
—
9
148
976
1,020
434

16,391
(1,083)
310
2,161
(457)

13,347
8,118
(23)
(7,487)
(10,530)

(46,351)
(8,866)
—
(6,500)
(61,717)

(1)
1,709

—  
—  

1,708

(70,539)
(1,278)
209,520
137,703

1,165
7,178
4,424
120
519

139

$

$
$
$
$
$

$

18,417
(3,426)
4,172
(387)
213
(144)
—
136
—
7,685
—

(15,402)
(2,366)
(715)
(2,520)
164

1,566
2,171
24
(15,563)
(63,967)

(20,924)
(13,968)
(2,128)
—
(37,020)

(23)
841
87,051
(5,141)
82,728

(18,259)
422
227,357
209,520

—
1,615
1,889
—
7,685

3

$

$
$
$
$
$

$

See Notes to Consolidated Financial Statements

F-6

    
    
 
   
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.    Principal Business Activity

The Company

MeiraGTx Holdings plc and subsidiaries (the “Company” or “Meira Holdings”), an exempted company incorporated
under the laws of the Cayman Islands, is a vertically integrated, clinical stage gene therapy company with six
programs in clinical development and a broad pipeline of preclinical and research programs. The Company has core
capabilities in viral vector design and optimization and gene therapy manufacturing, as well as a potentially
transformative gene regulation technology. Led by an experienced management team, the Company has taken a
portfolio approach by licensing, acquiring and developing technologies that give depth across both product candidates
and indications. The Company’s initial focus is on three distinct areas of unmet medical need: ocular diseases,
including inherited retinal diseases as well as large degenerative ocular diseases, neurodegenerative diseases and
severe forms of xerostomia. Though initially focusing on the eye, central nervous system and salivary gland, the
Company intends to expand its focus in the future to develop additional gene therapy treatments for patients suffering
from a range of serious diseases. The Company also owns and operates a current good manufacturing practices, or
cGMP, multi-product, multi-viral vector manufacturing facility in London, United Kingdom (“UK”), which includes
fill and finish capabilities and can supply the Company’s clinical and potential commercial material. Additionally, on
August 4, 2020, the Company entered into agreements to acquire the buildings for its second cGMP viral vector
manufacturing facility and its first cGMP plasmid and DNA production facility in Shannon, Ireland to expand its
manufacturing and supply chain capabilities. The Company closed on the acquisition of the first building in August
2020 and closed on the acquisition of the second building in January 2021.

Acquisitions

On October 4, 2021, the Company acquired Bullseye Therapeutics, Inc. (“Bullseye”), a company engaged in
developing mechanisms to deliver retinal drugs and gene therapies to the eye. Bullseye was renamed MeiraGTx
Therapeutics, Inc.

On April 9, 2020, the Company acquired Emrys Bio Inc. (“Emrys”), a pre-clinical biopharmaceutical company
developing brain-derived neurotrophic factor gene therapy for treatment of genetic obesity disorders, as well as the
development of gene therapy product candidates for other central nervous system diseases. Emrys was renamed
MeiraGTx Bio, Inc.

These acquisitions are part of the Company’s continuing efforts to expand its focus to develop additional gene therapy
treatments for patients suffering from a range of serious diseases. (See Note 3 for additional information).

Basis of Presentation

The accompanying consolidated financial statements have been prepared in conformity with accounting principles
generally accepted in the United States of America (“GAAP”). Any reference in these notes to applicable guidance is
meant to refer to the authoritative United States generally accepted accounting principles as found in the Accounting
Standards Codification (“ASC”) and Accounting Standards Update (“ASU”) of the Financial Accounting Standards
Board (“FASB”).

Liquidity

The Company has not yet achieved profitable operations. There is no assurance that profitable operations, if ever
achieved, could be sustained on a continuing basis. In addition, development activities, clinical and preclinical testing,
and commercialization of the Company’s product candidates will require significant additional financing. The
Company’s accumulated deficit at December 31, 2021 totaled $340.6 million, and management expects to incur
substantial losses in future periods. The success of the Company is subject to certain risks and uncertainties,

F-7

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

including among others, uncertainty of product development; competition in the Company’s field of use; uncertainty
of capital availability; uncertainty in the Company’s ability to enter into agreements with collaborative partners;
expanding and protecting the Company’s intellectual property portfolio; dependence on third parties; dependence on
key personnel; the COVID-19 pandemic and mitigation measures. For the year ended December 31, 2021, the
Company used $10.5 million in cash flows from operations and there are no assurances that the Company will
generate positive cash flows in the future. Additionally, there are no assurances that the Company will be successful in
obtaining an adequate level of financing for the development and commercialization of its product candidates.

As of December 31, 2021, the Company had cash and cash equivalents in the amount of $137.7 million, which
consisted of depository and money market accounts. On January 30, 2019, the Company entered into a collaboration,
option and license agreement with Janssen Pharmaceuticals, Inc. (“Janssen”), one of the Janssen Pharmaceuticals
Companies of Johnson & Johnson (the “Collaboration Agreement”), for the research, development and
commercialization of gene therapies for the treatment of inherited retinal diseases (“IRD”). Under the terms of the
Collaboration Agreement, the Company received an upfront payment of $100.0 million in March 2019 and a $30.0
million milestone payment in December 2021. The Company also receives funding for certain research,
manufacturing, clinical development and commercialization costs, potential additional milestone payments upon the
achievement of such milestones and royalties on future net sales of products. The Company estimates that its cash and
cash equivalents on hand and accounts receivable – related party at December 31, 2021 will be sufficient to cover its
expenses for at least the next twelve months from the date of issuance of these consolidated financial statements.

Risks and Uncertainties

The Company operates in an industry that is subject to intense competition, government regulation and rapid
technological change. The Company’s operations are subject to significant risk and uncertainties including financial,
operational, technological, regulatory and other risks, including the potential risk of business failure.

There are also many uncertainties regarding the pandemic caused by the novel coronavirus, or COVID-19, and the
Company continues to monitor the impact of the pandemic on all aspects of its business, including how the pandemic
will impact its financial condition, liquidity, operations, clinical studies, employees, vendors, and industry. While the
pandemic did not materially affect the Company's financial results and business operations in the year ended
December 31, 2021 and 2020, the Company is unable to predict the impact that COVID-19 will have on its financial
position and operating results in future periods due to numerous uncertainties. The Company will continue to assess
the evolving impact of the COVID-19 pandemic and will make adjustments to its operations as necessary.

The Company’s capital resources and operations to date have been funded primarily with the proceeds from the
Collaboration Agreement and private and public equity offerings. In the future, the Company may seek to raise
additional capital through equity offerings, debt financings, marketing and distribution arrangements and other
collaborations, strategic alliances and licensing arrangements or other sources to enable it to complete the development
and potential commercialization of its product candidates. The COVID-19 outbreak and mitigation measures also have
had, and may continue to have, an adverse impact on global economic conditions, which could have an adverse effect
on the Company’s ability to raise capital when needed.

F-8

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

2.    Summary of Significant Accounting Policies

Consolidation

The accompanying consolidated financial statements include the accounts of Meira Holdings and its wholly owned
subsidiaries:

MeiraGTx Limited, a limited company incorporated under the laws of England and Wales;
MeiraGTx, LLC, a Delaware limited liability company (“Meira LLC”);
MeiraGTx UK II Limited, a limited company incorporated under the laws of England and Wales (“Meira UK II”);
MeiraGTx Ireland DAC, a designated activity company incorporated under the laws of Ireland (“Meira Ireland”);
MeiraGTx Netherlands B.V., a private company with limited liability incorporated under the laws of the
Netherlands (“Meira Netherlands”);
MeiraGTx Belgium, a private company with limited liability incorporated under the laws of Belgium (“Meira
Belgium”);
BRI-Alzan, Inc., a Delaware corporation (“BRI-Alzan”);
MeiraGTx Bio Inc., a Delaware corporation (“Meira Bio”);
MeiraGTx B.V., a private company with limited liability incorporated under the laws of the Netherlands (“Meira
B.V.”);
MeiraGTx Neurosciences, Inc., a Delaware corporation (“Meira Neuro”);
MeiraGTx Therapeutics, Inc., a Delaware corporation (“Meira Therapeutics”); and
MeiraGTx UK Limited, a limited company incorporated under the laws of England and Wales (“Meira UK”).

All intercompany balances and transactions between the consolidated companies have been eliminated in
consolidation.

Use of Estimates

Management considers many factors in selecting appropriate financial accounting policies and controls, and in
developing the estimates and assumptions that are used in the preparation of these consolidated financial statements.
Management must apply significant judgment in this process. In addition, other factors may affect estimates, including
expected business and operational changes, sensitivity and volatility associated with the assumptions used in
developing estimates, and whether historical trends are expected to be representative of future trends. The estimation
process often may yield a range of potentially reasonable estimates of the ultimate future outcomes and management
must select an amount that falls within that range of reasonable estimates. This process may result in actual results
differing materially from those estimated amounts used in the preparation of the financial statements if these results
differ from historical experience, or other assumptions do not turn out to be substantially accurate, even if such
assumptions are reasonable when made. In preparing these consolidated financial statements, management used
significant estimates in the following areas, among others: collaboration revenue, the accounting for research and
development costs, share-based compensation, leases, asset retirement obligations and tax incentive receivable.

Additionally, the Company has made estimates of the impact of the COVID-19 pandemic within the consolidated
financial statements and there may be changes to those estimates in future periods. Actual results may differ from
these estimates.

F-9

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Cash and Cash Equivalents

The Company considers all highly liquid instruments with an original maturity of 90 days or less at the time of 
purchase to be cash equivalents.  Cash and cash equivalents consist of checking and money market accounts that are 
readily convertible into cash.

Financial Instruments

The carrying value of accounts receivable-related party, tax incentive receivable, other current assets, and accounts
payable reported in the consolidated balance sheets equal or approximate fair value due to their short maturities.

Tax Incentive Receivable

Meira UK II is eligible to participate in a UK research and development tax incentive programs under which it is
eligible to receive a cash refund from Her Majesty’s Revenue & Customs (“HMRC”) for a percentage of the qualified
research and development costs expended by Meira UK II under the small and medium sized enterprises (“SME”)
program and the research and development expenditures credit (“RDEC”) program. The SME cash refund is available
to companies with less than 500 employees and annual aggregate revenue of less than 100.0 million euro or total
aggregate assets less than 86.0 million euro during the reimbursable period. The Company’s estimate of the amount of
cash refund it expects to receive related to the SME and RDEC programs is included in tax incentive receivable in the
accompanying consolidated balance sheets and such amounts are recorded as a reduction of research and development
expense in the statements of operations. During the years ended December 31, 2021 and 2020, the Company recorded
reductions to research and development expenses of $5.4 million and $5.3 million, respectively.  

In addition, the Company incurs Value Added Tax (“VAT”) on services provided by UK and EU vendors, which it is
entitled to reclaim. The Company’s estimate of the amount of cash refund it expects to receive related to VAT was $1.9
million and $4.0 million as of December 31, 2021 and 2020, respectively, which is included in other current assets in
the accompanying consolidated balance sheets.

Fair Value Measurements

Fair value is defined as the price that would be received upon sale of an asset or paid upon transfer of a liability in an
orderly transaction between market participants at the measurement date and in the principal or most advantageous
market for that asset or liability. The fair value should be calculated based on assumptions that market participants
would use in pricing the asset or liability, not on assumptions specific to the entity. In addition, the fair value of
liabilities should include consideration of non-performance risk including the Company’s own credit risk.

The Company follows ASC Topic 820, Fair Value Measurements and Disclosures, or ASC 820, for application to
financial assets and liabilities. In addition to defining fair value, the standard expands the disclosure requirements
around fair value and establishes a fair value hierarchy for valuation inputs. The hierarchy prioritizes the inputs into
three levels based on the extent to which inputs used in measuring fair value are observable in the market. Each fair
value measurement is reported in one of the three levels which are determined by the lowest level input that is
significant to the fair value measurement in its entirety. These levels are:

● Level 1: Observable inputs such as quoted prices in active markets for identical assets the reporting entity

has the ability to access as of the measurement date;

● Level 2: Inputs, other than the quoted prices in active markets, that are observable either directly or

indirectly; and

F-10

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

● Level 3: Unobservable inputs in which there is little or no market data, which require the reporting entity

to develop its own assumptions.

The table below represents the values of the Company's financial assets and liabilities that are required to be measured
at fair value on a recurring basis (in thousands):

Description
Cash and cash equivalents
Other long-term liabilities

December 31, 
2021
66,585
953

$
$

Fair Value Measurement Using:
Significant
Observable Inputs
(Level 1)

     Significant Other     
Observable Inputs
(Level 2)

Significant
Unobservable
(Level 3)

$
$

66,585
953

$
$

— $
— $

—
—

Description
Cash and cash equivalents

December 31, 
2020
186,938

$

Fair Value Measurement Using:
Significant
Observable Inputs
(Level 1)

     Significant Other     
Observable Inputs
(Level 2)

Significant
Unobservable
(Level 3)

$

186,938

$

— 0

—

Equity Method and Other Investments

The Company accounts for equity investments under the equity method of accounting when the requirements for
consolidation are not met, and the Company has significant influence over the operations of the investee. Equity
method investments are initially recorded at cost and subsequently adjusted for the Company’s share of net income or
loss and cash contributions and distributions and are included in equity method and other investments in the
accompanying consolidated balance sheets. Equity investments that do not result in consolidation and are not
accounted for under the equity method are measured at fair value, with any changes in fair value recognized in net
income (loss). For any such investments that do not have readily determinable fair values, the Company elects the
measurement alternative to measure the investments at cost minus impairment, if any, plus or minus changes resulting
from observable price changes in orderly transactions for the identical or a similar investment of the same issuer.
Equity method investments are reviewed for impairment whenever events or changes in circumstances indicate that the
carrying amount may not be recoverable. If it is determined that a loss in value of the equity method investment is
other than temporary, an impairment loss is measured based on the excess of the carrying amount of an investment
over its estimated fair value. Impairment analyses are based on current plans, intended holding periods, and available
information at the time the analysis is prepared.

Concentrations of Credit Risk

The Company maintains its cash and cash equivalents primarily in depository and money market accounts within two
large financial institutions in the United States and one large financial institution in the United Kingdom and Ireland.
 Cash balances deposited at these major financial banking institutions exceed the insured limit. The Company has not
experienced any losses on its bank deposits and believes these deposits do not expose the Company to any significant
credit risk.

Intangible Assets

Intangible assets consist of purchased rights to licensed technology as it relates to the Company’s manufacturing 
processes and has future alternative use in the Company’s operations.  The licensed technology is being amortized on a 
straight-line basis over 7 years, which represents the estimated periods of benefit and the expected pattern of
consumption (see Note 7).

F-11

    
    
    
    
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Property, Plant and Equipment, Net

Property, plant and equipment are stated at cost, net of accumulated depreciation. Depreciation is calculated using the
straight-line method over the estimated useful lives of the respective assets. Leasehold improvements are depreciated
over the lesser of their useful lives or the life of the lease (see Note 6).

The estimated useful lives of the asset categories are as follows:

Asset Category
Computer and office equipment
Laboratory equipment
Manufacturing equipment
Furniture and fixtures
Leasehold improvements

Useful Lives

3 years
5 years
7 years
5 years
lesser of useful
life or
remaining term
of lease

Expenditures for leasehold improvements are capitalized, and expenditures for maintenance and repairs are expensed
to operations as incurred.

ASC Topic 360, Property, Plant and Equipment, addresses the financial accounting and reporting for impairment or
disposal of long-lived assets. The Company reviews the recorded values of long-lived assets for impairment whenever
events or changes in business circumstances indicate that the carrying amount of an asset or group of assets may not be
fully recoverable. The Company recorded no material impairment charges in 2021 or 2020.

Leases

The Company accounts for leases in accordance with ASC 842. The Company determines if an arrangement is a lease
at contract inception. A lease exists when a contract conveys the right to control the use of identified property, plant, or
equipment for a period of time in exchange for consideration. The definition of a lease embodies two conditions:
(1) there is an identified asset in the contract that is land or a depreciable asset (i.e., property, plant, and equipment),
and (2) the Company has the right to control the use of the identified asset. The Company accounts for the lease and
non-lease components as a single lease component.

From time to time the Company enters into direct financing lease arrangements that include a lessee obligation to
purchase the leased asset at the end of the lease term, a bargain purchase option, or provides for minimum lease
payments with a present value of 90% or more of the fair value of the leased asset at the date of lease inception.

Operating leases where the Company is the lessee are included in right-of-use (“ROU”) assets and lease obligations
are included on the Company’s consolidated balance sheets. The lease obligations are initially and subsequently
measured at the present value of the unpaid lease payments at the lease commencement date and subsequent reporting
periods.

Finance leases where the Company is the lessee are included in ROU assets – finance leases, net and lease obligations
on the Company’s consolidated balance sheets. The lease obligations are initially measured in the same manner as for
operating leases and are subsequently measured at amortized cost using the effective interest method.

Key estimates and judgments include how the Company determined (1) the discount rate used to discount the unpaid
lease payments to present value, (2) lease term and (3) lease payments.

F-12

    
 
 
 
 
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

ASC 842 requires a lessee to discount its unpaid lease payments using the interest rate implicit in the lease or, if that
rate cannot be readily determined, its incremental borrowing rate. As most of the Company’s leases where it is the
lessee do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information
available at commencement date in determining the present value of lease payments. The Company’s incremental
borrowing rate for a lease is the rate of interest it would have to pay on a collateralized basis to borrow an amount
equal to the lease payments under similar terms. The Company uses the implicit rate when readily determinable.

The lease term for all of the Company’s leases includes the non-cancellable period of the lease plus any additional
periods covered by either a lessee option to extend (or not to terminate) the lease that is reasonably certain to be
exercised, or an option to extend (or not to terminate) the lease controlled by the lessor.

The ROU asset is initially measured at cost, which comprises the initial amount of the lease liability adjusted for lease
payments made at or before the lease commencement date less any lease incentives received.

For operating leases, the ROU asset is subsequently measured throughout the lease term at the carrying amount of the
lease liability, minus any accrued lease payments, less the unamortized balance of lease incentives received. Lease
expense for lease payments is recognized on a straight-line basis over the lease term.

For finance leases, the ROU asset is subsequently amortized using the straight-line method from the lease
commencement date to the earlier of the end of its useful life or the end of the lease term unless the lease transfers
ownership of the underlying asset, or the Company is reasonably certain to exercise an option to purchase the
underlying asset. In those cases, the ROU asset is amortized over the useful life of the underlying asset. Amortization
of the ROU asset is recognized and presented separately from interest expense on the lease liability.

The Company has elected not to recognize ROU assets and lease liabilities for all short-term leases that have a lease
term of 12 months or less at lease commencement. Lease payments associated with short-term leases are recognized as
an expense on a straight-line basis over the lease term.

Asset Retirement Obligations

Accounting for asset retirement obligations requires legal obligations associated with the retirement of long-lived 
assets to be recognized at fair value when incurred and capitalized as part of the related long-lived asset.  In the 
absence of quoted market prices, the Company estimates the fair value of its asset retirement obligations using Level 3 
present value techniques, in which estimates of future cash flows associated with retirement activities are discounted 
using a credit-adjusted risk-free rate of 8%.  Asset retirement obligations currently reported on the Company’s 
consolidated balance sheets were measured during a period of historically low interest rates.  The impact on 
measurements of new asset retirement obligations using different rates in the future may be significant.

The Company uses estimates to determine the asset retirement obligations at the end of the lease term and discounts
such asset retirement obligations using an estimated discount rate. Interest on the discounted asset retirement
obligation is amortized over the term of the lease using the effective interest method and is recorded as interest
expense in the consolidated statements of operations and comprehensive loss.

F-13

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The change in asset retirement obligations is as follows (in thousands):

Balance at beginning of period
Additional  asset  retirement  obligations  during  the

     $

period

Amortization of interest
Effects of exchange rate
Balance at end of period

Share-Based Compensation Expense

Options

$

For the Years Ended December 31, 

2021

2020

1,814      $

120
148
(1)
2,081

$

1,655

—
136
23
1,814

The Company grants share options to employees, non-employee members of the Company’s board of directors and
non-employee consultants as compensation for services performed. Employee and non-employee members of the
board of directors’ awards of share-based compensation are accounted for in accordance with ASC 718, Compensation
- Stock Compensation, or ASC 718. ASC 718 requires all share-based payments to employees and non-employee
directors, including grants of share options, to be recognized in the consolidated statement of operations and
comprehensive loss based on their grant date fair values. The grant date fair value of share options is estimated using
the Black-Scholes option valuation model.

Using this model, fair value is calculated based on assumptions with respect to (i) the fair value of the Company’s
ordinary shares on the grant date; (ii) expected volatility of the Company’s ordinary share price, (iii) the periods of
time over which the optionees are expected to hold their options prior to exercise (expected term), (iv) expected
dividend yield on the Company’s ordinary shares, and (v) risk-free interest rates.

As there had been no public market for the Company’s ordinary shares until the Company’s initial public offering 
(“IPO”) on June 7, 2018, the estimated fair value of the ordinary shares until that time had been determined by the 
Company’s board of directors as of the date of each option grant, with input from management, considering the most 
recently available third-party valuations of ordinary shares and the board of directors’ assessment of additional 
objective and subjective factors that it believed were relevant and which may have changed from the date of the most 
recent valuation through the date of the grant.  The assumptions underlying these valuations represented management’s 
best estimate, which involved inherent uncertainties and the application of management’s judgment. As a result, if the 
Company had used different assumptions or estimates, the fair value of its ordinary shares and its share-based 
compensation expense could have been materially different.

The fair value of ordinary shares after the Company’s IPO was determined based upon the closing share price on the
date of grant.

Since the Company’s ordinary shares had not been traded on a public exchange prior to the Company’s IPO and have
only been traded on a public exchange for a short period of time since the Company’s IPO, the Company believes that
it does not have sufficient company-specific information available to determine the expected term based on its
historical data. As a result, the expected term of share options granted to the optionees is determined using the average
of the vesting period and contractual life of the option, an accepted method for the Company’s option grants under the
Securities and Exchange Commission’s (“SEC”) Staff Accounting Bulletin No. 107 and No. 110, Share-Based
Payment.

F-14

 
 
 
 
 
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Similarly, the Company believes that its future volatility could differ materially during the expected term from the
volatility that would be calculated from its historical share prices to date. Consequently, expected volatility is based on
an analysis of guideline companies in accordance with ASC 718. The expected dividend yield is zero as the Company
has never paid dividends and does not currently anticipate paying any in the foreseeable future. Risk-free interest rates
are based on quoted U.S. Treasury rates for securities with maturities approximating the option’s expected term.

Restricted Shares

In connection with certain employment, service and research agreements, the Company has granted restricted ordinary
shares as compensation. The ordinary shares are recognized in the consolidated statements of operations and
comprehensive loss based on their grant date fair values. Compensation cost relating to share grants with service-based
graded vesting schedules is recognized based on the vesting schedule.

Restricted Share Units

The Company grants restricted share units (“RSUs”) to employees, non-employee members of the Company’s board
of directors and non-employee consultants as compensation for services performed. Awards of RSUs are accounted for
in accordance with ASC 718, Compensation - Stock Compensation, or ASC 718. ASC 718 requires all share-based
payments to employees, non-employee members of the Company’s board of directors and non-employee consultants,
including grants of RSUs, to be recognized in the consolidated statement of operations and comprehensive loss based
on their grant date fair values. The grant date fair value of RSUs is determined using the closing market price of the
Company’s ordinary shares on the date of grant.

Collaboration Arrangements

The Company evaluates its collaborative arrangements pursuant to ASC 808, Collaborative Arrangements (“ASC
808”) and ASC 606, Revenue from Contracts with Customers (“ASC 606”). The Company considers the nature and
contractual terms of collaborative arrangements and assesses whether the arrangement involves a joint operating
activity pursuant to which the Company is an active participant and is exposed to significant risks and rewards with
respect to the arrangement. If the Company is an active participant and is exposed to significant risks and rewards with
respect to the arrangement, the Company accounts for the arrangement as a collaboration under ASC 808. To date, the
Company has entered into two separate collaboration agreements, both of which are with Janssen, which were
determined to be within the scope of ASC 808.

ASC 808 does not address recognition or measurement matters related to collaborative arrangements. Payments
between participants pursuant to a collaborative arrangement that are within the scope of other authoritative
accounting literature on income statement classification are accounted for using the relevant provisions of that
literature. If the payments are not within the scope of other authoritative accounting literature, the income statement
classification for the payments is based on an analogy to authoritative accounting literature or if there is no appropriate
analogy, a reasonable, rational and consistently applied accounting policy election. Payments received from a
collaboration partner to which this policy applies may include upfront payments in respect of a license of intellectual
property, development and commercialization-based milestones, and royalties.

Refer to the discussion in Note 12 for further information related to the accounting for the Collaboration Agreement.

Revenue Recognition

Arrangements with collaborators may include licenses to intellectual property, research and development services,
manufacturing services for clinical and commercial supply, and participation on joint steering committees. The
Company evaluates the promised goods or services to determine which promises, or group of promises, represent

F-15

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

performance obligations. In contemplation of whether a promised good or service meets the criteria required of a
performance obligation, the Company considers the stage of development of the underlying intellectual property, the
capabilities and expertise of the customer relative to the underlying intellectual property, and whether the promised
goods or services are integral to or dependent on other promises in the contract. When accounting for an arrangement
that contains multiple performance obligations, the Company must develop judgmental assumptions, which may
include market conditions, reimbursement rates for personnel costs, development timelines and probabilities of
regulatory success to determine the stand-alone selling price for each performance obligation identified in the contract.

When the Company concludes that a contract should be accounted for as a combined performance obligation and
recognized over time, the Company must then determine the period over which revenue should be recognized and the
method by which to measure revenue. The Company generally recognizes revenue using a cost-based input method.

The Collaboration Agreement with Janssen is accounted for under ASC 808, however, as ASC 808 does not address
recognition or measurement matters such as determining the appropriate unit of accounting or when the recognition
criteria are met, the Company accounts for the consideration received from Janssen in accordance with ASC 606. In
accordance with ASC 606, the Company recognizes revenue when its customer or collaborator obtains control of
promised goods or services, in an amount that reflects the consideration which the Company expects to receive in
exchange for those goods or services. To determine revenue recognition for arrangements that the Company
determines are within the scope of ASC 606, it performs the following five steps:

i.

ii.

identify the contract(s) with a customer;

identify the performance obligations in the contract;

iii.

determine the transaction price;

iv.

v.

allocate the transaction price to the performance obligations within the contract; and

recognize revenue when (or as) the entity satisfies a performance obligation.

The Company only applies the five-step model to contracts when it determines that it is probable 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 by analogy within the scope of ASC 606, the Company
assesses the goods or services promised within the contract to determine whether each promised good or service is a
performance obligation. The promised goods or services in the Company’s arrangements typically consist of a license
to the Company’s intellectual property and research, development and manufacturing services. The Company may
provide options to additional items in such arrangements, which are accounted for as separate contracts when the
customer elects to exercise such options, unless the option provides a material right to the customer. Performance
obligations are promises in a contract to transfer a distinct good or service to the customer that (i) the customer can
benefit from on its own or together with other readily available resources, and (ii) is separately identifiable from other
promises in the contract. Goods or services that are not individually distinct performance obligations are combined
with other promised goods or services until such combined group of promises meet the requirements of a performance
obligation.

The Company determines transaction price based on the amount of consideration the Company expects to receive for
transferring the promised goods or services in the contract. Consideration may be fixed, variable, or a combination of
both. At contract inception for arrangements that include variable consideration, the Company estimates the
probability and extent of consideration it expects to receive under the contract utilizing either the most

F-16

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

likely amount method or expected amount method, whichever best estimates the amount expected to be received. The
Company then considers any constraints on the variable consideration and includes in the transaction price variable
consideration to the extent it is deemed probable that a significant reversal in the amount of cumulative revenue
recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved.

The Company then allocates the transaction price to each performance obligation based on the relative standalone
selling price and recognizes as revenue the amount of the transaction price that is allocated to the respective
performance obligation when (or as) control is transferred to the customer and the performance obligation is satisfied.
For performance obligations which consist of licenses and other promises, the Company utilizes judgment to assess the
nature of the combined performance obligation to determine whether the combined performance obligation is satisfied
over time or at a point in time and, if over time, the appropriate method of measuring progress. The Company
evaluates the measure of progress each reporting period and, if necessary, adjusts the measure of performance and
related revenue recognition.

The Company records amounts as accounts receivable when the right to consideration is deemed unconditional. When
consideration is received, or such consideration is unconditionally due, from a customer prior to transferring goods or
services to the customer under the terms of a contract, a contract liability is recorded as deferred revenue.

Amounts received prior to satisfying the revenue recognition criteria are recognized as deferred revenue in the
Company’s consolidated balance sheet. Amounts expected to be recognized as revenue within the 12 months following
the balance sheet date are classified as deferred revenue – related party, current. Amounts not expected to be
recognized as revenue within the 12 months following the balance sheet date are classified as deferred revenue –
related party.

The Company’s collaboration revenue arrangements include the following:

Up-front License Fees: If a license is determined to be distinct from the other performance obligations identified in the
arrangement, the Company recognizes revenues from nonrefundable, up-front fees allocated to the license when the
license is transferred to the licensee and the licensee is able to use and benefit from the license. For licenses that are
bundled with other promises, the Company utilizes judgment to assess the nature of the combined performance
obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if
over time, the appropriate method of measuring progress for purposes of recognizing revenue from non-refundable,
up-front fees. The Company evaluates the measure of progress each reporting period and, if necessary, adjusts the
measure of performance and related revenue recognition.

Milestone Payments: At the inception of an agreement that includes research and development milestone payments,
the Company evaluates each milestone to determine when and how much of the milestone to include in the transaction
price. The Company first estimates the amount of the milestone payment that the Company could receive using either
the expected value or the most likely amount approach. The Company primarily uses the most likely amount approach
as that approach is generally most predictive for milestone payments with a binary outcome. Then, the Company
considers whether any portion of that estimated amount is subject to the variable consideration constraint (that is,
whether it is probable that a significant reversal of cumulative revenue would not occur upon resolution of the
uncertainty.) The Company updates the estimate of variable consideration included in the transaction price at each
reporting date which includes updating the assessment of the likely amount of consideration and the application of the
constraint to reflect current facts and circumstances.

Royalties: For arrangements that include sales-based royalties, including milestone payments based on a level of sales,
and the license is deemed to be the predominant item to which the royalties relate, the Company will recognize
revenue at the later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of
the royalty has been allocated has been satisfied (or partially satisfied). To date, the Company has not recognized any
revenue related to sales-based royalties or milestone payments based on the level of sales.

F-17

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Research and Development Services: The Company is incurring research and development costs, with Janssen
responsible for up to 100% of the costs, depending on the type of research and development services being performed.
The Company records costs associated with the development activities as research and development expenses in the
consolidated statement of operations and comprehensive loss consistent with ASC 730, Research and Development.
The reimbursement of the research and development costs by Janssen is representative of the joint risk sharing nature
of the arrangement. The Company considered the guidance in ASC 808 and recognizes the payments received from
Janssen as a reduction to research and development expense when the related costs are incurred.

Research and Development

Research and development costs are charged to expense as incurred. These costs include, but are not limited to, 
employee-related expenses, including salaries, benefits and travel of the Company’s research and development 
personnel; expenses incurred under agreements with contract research organizations and investigative sites that 
conduct clinical and preclinical studies and for the drug product for the clinical studies and preclinical activities; 
facilities; supplies; rent, insurance, certain legal fees, share-based compensation, depreciation, other costs associated 
with clinical and preclinical activities and regulatory operations and acquisition of in process research and 
development write-offs.  Research funding under collaboration agreements and refundable research and development 
credits / tax credits are recorded as an offset to these costs.

Costs for certain development activities, such as Company funded outside research programs, are recognized based on
an evaluation of the progress to completion of specific tasks with respect to their actual costs incurred. Payments for
these activities are based on the terms of the individual arrangements, which may differ from the pattern of costs
incurred, and are reflected in the consolidated financial statements as prepaid or accrued research and development
expenses, as the case may be.

Foreign Currencies

The Company’s consolidated financial statements are presented in U.S. dollars, the reporting currency of the 
Company. The financial position and results of operations of Meira UK II, Meira Ireland, Meira Netherlands, Meira 
Belgium and Meira B.V. are measured using the foreign subsidiaries’ local currency as the functional currency. These 
entities’ cash accounts holding U.S. dollars are remeasured based upon the exchange rate at the date of remeasurement 
with the resulting gain or loss included in the consolidated statements of operations and comprehensive loss.  Expenses 
of such subsidiaries have been translated into U.S. dollars at average exchange rates prevailing during the period. 
Assets and liabilities have been translated at the rates of exchange on the consolidated balance sheet dates. The 
resulting translation gain and loss adjustments are recorded directly as a separate component of shareholders' equity 
and as other comprehensive loss on the consolidated statements of operations and comprehensive loss.

Income Taxes

Income taxes are recorded in accordance with ASC Topic 740, Income Taxes, or ASC 740, which provides for deferred
taxes using an asset and liability approach. The Company recognizes deferred tax assets and liabilities for the expected
future tax consequences of events that have been included in the financial statements or tax returns. Deferred tax assets
and liabilities are determined based on the difference between the financial statement and tax bases of assets and
liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. Realization of
net deferred tax assets is dependent on future taxable income. Valuation allowances are provided if, based upon the
weight of available evidence, it is more likely than not that some, or all, of the deferred tax assets will not be realized.
Realization of net deferred tax assets is dependent on future taxable income (see Note 11).

F-18

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The Company accounts for uncertain tax positions in accordance with the provisions of ASC 740. When uncertain tax
positions exist, the Company recognizes the tax benefit of tax positions to the extent that the benefit will more likely
than not be realized. The determination as to whether the tax benefit will more likely than not be realized is based
upon the technical merits of the tax position as well as consideration of the available facts and circumstances. As of
December 31, 2021 and 2020, the Company recorded unrecognized tax positions of $0.7 and $0.5 million, 
respectively.  No interest and penalties have been accrued relative to the unrecognized tax positions.

The Company is required to estimate income taxes in each of the jurisdictions in which it operates.

Net Loss per Ordinary Share

Basic net loss per ordinary share is computed by dividing net loss by the weighted average number of shares of the
Company’s ordinary shares outstanding during the period of computation. Diluted net loss per ordinary share is
computed similar to basic net loss per share except that the denominator is increased to include the number of
additional ordinary shares that would have been outstanding if the ordinary share equivalents had been issued at the
beginning of the year and if the additional ordinary shares were dilutive (treasury stock method) or the two-class
method, whichever is more dilutive. For all periods presented, basic and diluted net loss per ordinary share are the
same as any additional ordinary share equivalents would be anti-dilutive.

The following securities are considered to be ordinary share equivalents, but were not included in the computation of
diluted net loss per ordinary share because to do so would have been anti-dilutive:

Share options
Restricted share units
Restricted ordinary shares subject to forfeiture

Other Comprehensive Loss

     December 31, 

     December 31, 

2021

5,924,690  
1,415,000
173,097
7,512,787  

2020
4,824,771
545,000
290,000
5,659,771

Other comprehensive loss is defined as the change in equity of a business enterprise during a period from transactions 
and other events and circumstances from non-owner sources.  The only component of other comprehensive loss 
impacting the Company is foreign currency translation.

Segment Information

Management has concluded it has a single reporting segment for purposes of reporting financial condition and results
of operations.

The Company’s license revenue, research funding and deferred revenue from its Collaboration Agreement are
generated in the United Kingdom.

The following table summarizes non-current assets by geographical area (in thousands):

United States
United Kingdom
European Union

December 31, 
2021

December 31, 
2020

23,636
43,349
69,936
136,921

$

$

17,536
44,487
29,098
91,121

$

$

F-19

    
    
 
 
    
    
 
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Recent Accounting Pronouncements Not Yet Adopted

In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of
Credit Losses on Financial Instruments, which adds a new Topic 326 to the Codification and removes the thresholds
that companies apply to measure credit losses on financial instruments measured at amortized cost, such as loans,
receivables, and held-to-maturity debt securities. Under current GAAP, companies generally recognize credit losses
when it is probable that the loss has been incurred. The revised guidance will remove all recognition thresholds and
will require companies to recognize an allowance for credit losses for the difference between the amortized cost basis
of a financial instrument and the amount of amortized cost that the company expects to collect over the instrument’s
contractual life. ASU 2016-13 also amends the credit loss measurement guidance for available-for-sale debt securities
and beneficial interests in securitized financial assets. The guidance is applicable for fiscal years beginning after
December 15, 2019 and interim periods within those years, however, the FASB extended the effective date for smaller
reporting companies to fiscal years beginning after December 15, 2022. The Company is currently evaluating the
potential impact of the adoption of this standard on its related disclosures.

3.    Acquisitions

Bullseye Therapeutics, Inc.

On October 4, 2021 (the “Bullseye Closing Date”), the Company acquired the stock of Bullseye, a company engaged
in developing mechanisms to deliver retinal drugs and gene therapies to the eye. As a result, Bullseye is a wholly-
owned subsidiary of the Company and was renamed MeiraGTx Therapeutics, Inc.

In connection with the acquisition of Bullseye, the consideration to Bullseye’s selling stockholders consisted of an
aggregate of 80,276 of the Company’s ordinary shares of which (i) 12,040 ordinary shares were issued on the Bullseye
Closing Date, (ii) 28,097 restricted ordinary shares were issued on the Bullseye Closing Date, with 50% of such
restricted ordinary shares scheduled to vest on each of the first and second anniversaries of the Bullseye Closing Date,
and (iii) 40,139 ordinary shares will be issued 18 months following the Bullseye Closing Date, provided that the shares
described in clauses (ii) and (iii) are subject to certain indemnification claims under the Bullseye Merger
Agreement. The Company also assumed $0.5 million of Bullseye’s liabilities (“Assumed Liabilities”). Total
consideration of $1.5 million was based on the closing price of the Company’s ordinary shares of $13.31 per share on
October 1, 2021, plus the Assumed Liabilities.

The Company determined this transaction represented an asset acquisition as substantially all of the value was in the
intellectual property as defined by ASC 805, Business Combinations (“ASC 805”). The asset acquisition of in-process
research and development was recorded at a fair value of $1.5 million as of October 4, 2021. The acquired in process
research and development was immediately charged to research and development expense in the consolidated
statement of operations and comprehensive loss as of the acquisition date since the Company determined that there
was no additional alternative use of these assets.

The 40,139 ordinary shares that are to be issued 18 months following the Bullseye Closing Date were recorded as a
liability at a fair value of $0.5 million on the Bullseye Closing Date.  At December 31, 2021, the liability was revalued 
to $1.0 million based upon the closing price of the Company’s ordinary shares of $23.74 per share on December 31, 
2021.  The $0.5 million change in fair value was recorded as research and development expense for the year ended
December 31, 2021.

Emrys Bio Inc.

On April 9, 2020 (the “Emrys Closing Date”), the Company acquired Emrys, a pre-clinical biopharmaceutical
company developing brain-derived neurotrophic factor gene therapy for treatment of genetic obesity disorders, as well
as the development of gene therapy product candidates for other central nervous system diseases. The

F-20

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Company acquired Emrys pursuant to an Agreement and Plan of Merger (the “Emrys Merger Agreement”), dated as of
April 9, 2020, by and among the Company, Emrys, and EB Acquisition, Inc., a wholly-owned subsidiary of the
Company (“Merger Sub”), the Emrys stockholders and the Emrys stockholder representative, pursuant to which
Merger Sub was merged with and into Emrys, with Emrys being the surviving corporation (the “Emrys Merger”). As a
result of the Emrys Merger, Emrys became a wholly-owned subsidiary of the Company and was renamed MeiraGTx
Bio Inc.

As part of the entry into the Emrys Merger Agreement, the parties to the Agreement and Plan of Merger (the “Vector
Merger Agreement”), dated October 5, 2018, entered into an Amendment and Waiver to the Vector Merger Agreement
by and among the Company, VN Acquisition, Inc., VN Acquisition 2, Inc., the former Vector Neurosciences Inc.
(“Vector”) stockholders and the Vector stockholder representative, to terminate and waive all milestone payments
payable under the Vector Merger Agreement that were otherwise required if specified regulatory milestones were met,
and to terminate and waive all royalty payments that were otherwise required to be paid under the Vector Merger
Agreement. Several of the selling Emrys stockholders were also stockholders of Vector.

In connection with the acquisition of Emrys and the termination and waiver of the milestone and royalty payments
otherwise required under the Vector Merger Agreement, the consideration to Emrys selling stockholders consisted of
an aggregate of 580,000 of the Company’s ordinary shares of which (i) 232,000 ordinary shares were issued on the
Emrys Closing Date, (ii) 290,000 restricted ordinary shares were issued on the Emrys Closing Date, with 50% of such
restricted ordinary shares scheduled to vest on each of the first and second anniversaries of the Emrys Closing Date,
and (iii) 58,000 ordinary shares will be issued 18 months following the Emrys Closing Date, provided that the shares
described in clauses (ii) and (iii) are subject to certain indemnification claims under the Emrys Merger Agreement.
Total consideration of $7.7 million was based on the closing price of the Company’s ordinary shares of $13.25 per
share on the Closing Date.

The Company determined this transaction represented an asset acquisition as substantially all of the value was in the
intellectual property as defined by ASC 805, Business Combinations (“ASC 805”). The asset acquisition of in-process
research and development was recorded at a fair value of $7.7 million as of April 9, 2020. The acquired in process
research and development was immediately charged to research and development expense in the consolidated
statement of operations and comprehensive loss as of the acquisition date since the Company determined that there
was no additional alternative use of these assets.

4. Equity Method and Other Investments

The Company’s investments consist of the following (in thousands):

Investee
Visiogene LLC
Other
Total equity method and
other investments

Visiogene LLC

Investment Type
Equity Method Investment
Equity Investment

December 31, 2021
  Ownership Percentage   Carrying Value    Cost Basis
5,156 $ 5,165
1,500
1,500

25 % $
3 %

$

6,656 $ 6,665

On January 4, 2021, the Company and Visiogene LLC (“Visiogene”) entered into a License and Investment Agreement
(“Visiogene License Agreement”) for an exclusive, worldwide license to certain of Visiogene’s intellectual property
relating to ocular gene therapy. Concurrently, the Company and Visiogene entered into a Preferred Unit Purchase
Agreement (“Visiogene Unit Agreement”) pursuant to which the Company purchased 3,000,000 Visiogene preferred
units. In connection with the two Visiogene agreements, the Company paid $5.0

F-21

  
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

million in cash and issued to Visiogene 75,000 ordinary shares of the Company with a fair market value of $1.2 
million based on the closing price of the Company’s ordinary shares on the date of closing. 

The Company accounted for the payments under the Visiogene License Agreement and Visiogene Unit Agreement as a
basket transaction and allocated $1.0 million to the Visiogene License Agreement and the remaining $5.2 million was
allocated to the Visiogene preferred units. The $1.0 million allocated to the Visiogene License Agreement was
expensed as acquired in-process research and development as the Company determined there was no alternative future
use. The Company accounts for this investment using the equity method of accounting.

During the year ended December 31, 2021, the Company recorded research and development expenses in the amount
of $0.01 million related to the Company’s share of Visiogene’s losses.

5.    Prepaid Expenses

Prepaid expenses at December 31, 2021 and 2020 consist of the following (in thousands):

Clinical trial costs
Insurance
Dues and license fees
Research and development
Manufacturing costs
Rent and facilities costs
Other

December 31, 
2021

December 31, 
2020

$

$

2,322
2,122
1,185
991
624
455
403
8,102

$

$

1,625
2,903
515
164
1,395
169
311
7,082

6.    Property, Plant and Equipment, net

Property, plant and equipment, net at December 31, 2021 and 2020 consist of the following (in thousands):

Leasehold improvements
Manufacturing equipment
Laboratory equipment
Computer and office equipment
Furniture and fixtures

Less: Accumulated depreciation

December 31, 
2021

December 31, 
2020

60,878
12,156
10,868
5,750
687
90,339
(14,479)
75,860

$

$

33,777
7,021
7,350
3,713
568
52,429
(8,387)
44,042

$

$

In connection with certain operating leases, the Company has determined that it has asset retirement obligations in the
aggregate amount of $4.1 million at the end of those leases. The Company discounted the asset retirement obligations
using an 8% discount rate and recorded an asset retirement obligation in the aggregate amount of $1.9 million, which
is included in leasehold improvements and is being depreciated over the term of the respective leases.

Depreciation expense related to property, plant and equipment was $6.3 million and $3.7 million for the years ended
December 31, 2021 and 2020, respectively.

F-22

    
    
 
 
 
 
 
 
 
 
 
 
    
    
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

7.

Intangible Assets

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

In November 2020, the Company entered into a non-exclusive, royalty-free technology license agreement that required
the Company to pay an upfront payment to the licensor of $2.1 million.  The Company accounted for the transaction as 
an asset acquisition and recorded an intangible asset as it was determined to have alternative future uses in connection 
with the Company’s manufacturing capabilities.

The following table presents the details of the Company’s intangible assets as of December 31, 2021 and 2020 (in
thousands):

Licensed Technology
Less: Accumulated amortization

December 31, 
2021

December 31, 
2020

$

$

2,119
(328)
1,791

$

$

2,145
(26)
2,119

The intangible asset will be amortized over a period of seven years. Amortization expense of $0.3 million and $0.02
million was recorded as a component of research and development expenses for the years ended December 31, 2021
and 2020, respectively.

As of December 31, 2021, the expected amortization expense for the next five years and thereafter is as follows (in
thousands):

2022
2023
2024
2025
2026
Thereafter
Total amortization

8.    Accrued Expenses

Amortization
Expense

$

$

306
306
306
306
306
261
1,791

Accrued expenses at December 31, 2021 and 2020 were comprised of the following (in thousands):

Clinical trial costs
Compensation and benefits
Manufacturing costs
Fixed assets
Research and development
Professional fees
Consulting
Other

December 31, 
2021

December 31, 
2020

12,524
6,029
2,889
2,077
1,735
1,018
858
456
27,586

$

$

10,261
3,791
1,886
949
893
1,219
1,047
815
20,861

$

$

F-23

    
    
    
    
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

9.   Share-Based Compensation

Equity Incentive Plans

The Company’s 2018 Incentive Award Plan and 2016 Equity Incentive Plan (collectively, the “Plans”), were adopted
by the Company’s board of directors and shareholders. Under the Plans, the Company has granted share options and
restricted share units (“RSUs”) to selected officers, employees, non-employee members of the Company’s board of
directors and non-employee consultants. The Company’s board of directors or a committee thereof administers the
Plans. Upon the adoption of the 2018 Incentive Award Plan, the Company ceased issuing awards under the 2016
Equity Incentive Plan. The number of shares available for issuance under the 2018 Incentive Award Plan are increased
on January 1 of each calendar year beginning in 2019 and ending in and including 2028, by an amount equal to the
lesser of (A) 4% of the ordinary shares outstanding on the final day of the immediately preceding calendar year and
(B) a smaller number of shares determined by the Company's board of directors. Under the 2018 Incentive Award Plan
the Company initially reserved up to 3,054,996 shares for issuance, which has been increased to 7,388,448 as of
December 31, 2021. As of December 31, 2021, 1,195,477 shares remain available for future issuance. In January 2022,
the number of shares available for issuance under the 2018 Incentive Award Plan increased by 1,778,500 shares. Also,
in January 2022, the Company granted 2,186,200 options and restricted share units to certain executives, employees
and consultants, in each case, under the 2018 Incentive Award Plan.

Options

A summary of the Company’s share option activity related to employees, non-employee members of the board of
directors and non-employee consultants as of and for the years ended December 31, 2021 and 2020 is as follows (in
thousands, except share and per share amounts):

Weighted-
     Weighted-      Average

Average
Exercise
Price

Remaining
Contractual
Life (years)

Number of
Options

Outstanding at December 31, 2019
Granted
Exercised
Expired
Forfeited
Outstanding at December 31, 2020
Granted
Exercised
Expired
Forfeited
Outstanding at December 31, 2021
Options exercisable at December 31, 2021
Aggregate intrinsic value of options outstanding as
of December 31, 2021
Aggregate intrinsic value of options exercisable as
of December 31, 2021

  3,645,360
  1,666,500

  4,824,771
  1,667,700

$
$
(109,296) $
— $
(377,793) $
$
$
(186,638) $
— $
(381,143) $
$
$

  5,924,690
  3,275,644

$

$

62,702

41,884

9.31  
15.91  
7.69  
—  
15.71  
11.85  
15.53  
9.16  
—
12.22  
13.16
10.95

7.67 years

7.40 years
6.48 years

Options granted under the Plans have a maximum contractual term of ten years. Options granted generally vest 25%
on the first anniversary of the date of grant and the balance ratably over the next 36 months. Options granted to
directors when they join the board generally vest in 36 equal monthly installments following the date of grant, and
annual options granted to directors generally vest on the earlier of the first anniversary of the date of grant or the day
before the Company’s next annual meeting of shareholders after the date of grant.

F-24

    
  
  
 
  
 
  
 
  
 
 
 
 
  
   
 
  
   
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The total share-based compensation expense recorded in connection with the options was $14.8 million and $12.9
million, of which $6.2 million and $7.0 million was recorded as general and administrative expense and $8.6 million
and $5.9 million was recorded as research and development expense during the years ended December 31, 2021 and
2020, respectively.

The total fair value of options vested during the years ended December 31, 2021 and 2020 was $14.4 million and $8.2
million, respectively.

The weighted average grant date fair value of options granted during the years ended December 31, 2021 and 2020
was $11.44 and $11.87, respectively. The grant date fair values of the share options granted were estimated using the
Black-Scholes option valuation model with the following ranges of assumptions (see Note 2):

Risk-free interest rate
Expected volatility
Expected dividend yield
Expected life (in years)

2021

2020

  0.62 - 1.39%   0.32 - 2.56%

90%
0%
5.5 - 6.1

90%
0%
5.5 - 6.1

As of December 31, 2021, the total compensation expense relating to unvested options granted that had not yet been
recognized was $26.1 million, which is expected to be realized over a period of 4.0 years. The Company will issue
shares upon exercise of options from ordinary shares reserved under the Plans.

Restricted Share Units

A summary of the Company’s RSU activity related to employees, non-employee members of the board of directors
and non-employee consultants for the years ended December 31, 2021 and 2020 is as follows:

Number of
Restricted
Share Units

     Weighted-
Average
Grant Date
Fair Value

Outstanding at December 31, 2019
Granted
Vested
Forfeited
Outstanding at December 31, 2020
Granted
Vested
Forfeited
Outstanding at December 31, 2021

545,000

545,000
870,000

— $
$
— $
— $
$
$
— $
— $
$

1,415,000

—
20.02
—
—
20.02
15.36
—
—
17.16

RSUs granted generally vest 50% on the second anniversary of the date of grant and 25% on the third and fourth
anniversaries of the date of grant. Annual RSUs granted to directors generally vest in a single installment on the
earliest to occur of the first anniversary of the grant date or the day immediately prior to the date of the next annual
meeting of the Company’s shareholders occurring after the date of grant. The RSUs granted to the directors in June
2021 will be paid on or within 30 days after the date a director ceases to serve on the board. For RSUs granted in
future years, the directors will be able to elect whether to defer the payment of their annual RSU awards under the
Deferred Compensation Plan for Non-Employee Directors, which was adopted by the board on December 17, 2021.
The related share-based compensation expense, which is recognized ratably over the requisite service period, is

F-25

    
    
 
 
 
 
 
 
    
 
 
 
 
 
 
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

included in general and administrative and research and development expenses, as applicable, in the consolidated
statements of operations and comprehensive loss.

Total share-based compensation expense recorded in connection with the RSUs was $6.0 million and $2.6 million, of
which $4.9 million and $2.5 million was recorded as general and administrative expense and $1.1 million and $0.1
million was recorded as research and development expense during the years ended December 31, 2021 and 2020,
respectively.

As of December 31, 2021, the total compensation expense relating to unvested RSUs granted that had not yet been
recognized was $15.6 million, which is expected to be realized over a period of 3.7 years.

Restricted Ordinary Shares

On June 7, 2018, 1,306,348 restricted ordinary shares, which represented 5% of the fully-diluted outstanding shares of
the Company as of such date, were issued to certain members of senior management in accordance with their
employment agreements. One-third of such shares vested immediately, with the balance vesting quarterly over the next
eight quarters beginning three months after the effectiveness of the Company’s registration statement on Form S-1
filed with the SEC on June 7, 2018 (the “Registration Statement”). The shares were valued at $15.00 per share and the
related share-based compensation expense, which is recognized over the requisite service period, is included in general
and administrative expenses in the consolidated statements of operations and comprehensive loss. Additionally, under
the terms of the employment agreements, the Company was required to pay the income taxes incurred by the grantees
in connection with the grant of those restricted shares.

These restricted ordinary shares were fully vested as of June 2020.

Total compensation expense in connection with the issuance of those restricted ordinary shares, in the amount of $6.5
million, of which $2.9 million was share-based and $3.6 million was paid in cash, was recorded as general and
administrative expense during the year ended December 31, 2020.

During the years ended December 31, 2021 and 2020 the Company recognized total share-based compensation
expense in the accompanying consolidated statements of operations and comprehensive loss as follows (in thousands):

Research and development
General and administrative
Total share-based compensation

2021

2020

$

$

9,685
11,099
20,784

$

$

6,026
12,391
18,417

The Company does not expect to realize any tax benefits from its share option activity or the recognition of share-
based compensation expense because the Company currently has net operating losses and has a full valuation
allowance against its deferred tax assets. Accordingly, no amounts related to excess tax benefits have been reported in
cash flows from operations or cash flows from financing activities for the years ended December 31, 2021 and 2020.

F-26

    
    
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

10.  Ordinary Shares

2021

Equity Method and Other Investments

As discussed in Note 3, on January 4, 2021, the Company issued 75,000 ordinary shares in connection with the
Visiogene transaction in the amount of $1.2 million.

Acquisitions

As discussed in Note 3, on October 4, 2021 the Company issued 12,040 ordinary shares in connection with the
Bullseye acquisition.

Also discussed in Note 3, on October 9, 2021, the Company issued 58,000 ordinary shares in connection with the
Emrys acquisition.

2020

Public Offering

In November 2020, the Company issued 5,000,000 ordinary shares in a public offering for gross proceeds of $64.3
million. In December 2020, the underwriter exercised its overallotment provision and the Company issued an
additional 750,000 ordinary shares for gross proceeds of $9.6 million. Offering costs in connection with both issuances
were approximately $4.6 million.

At-the-Market Offering

In July 2019, the Company entered into an “at-the-market” sales agreement with Chardan Capital Markets, LLC, or
Chardan, pursuant to which the Company may sell from time to time, ordinary shares having an aggregate offering
price of up to $75.0 million through Chardan, acting as our agent. During the year ended December 31, 2020, the
Company raised gross proceeds of $13.2 million, through the sale of 993,448 ordinary shares pursuant to an “at-the-
market” equity offering program. Offering costs were approximately $0.5 million.  In November 2020, the Company 
terminated the at-the-market equity program.

Acquisitions

In April 2020, the Company issued 522,000 ordinary shares in connection with the acquisition of Emrys.

In October 2020, the Company issued 22,500 ordinary shares, which represented the holdback shares from a previous
acquisition.

11.  Income Taxes

For the years ended December 31, 2021 and 2020, the Company recognized a tax benefit of $0.

F-27

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

As of December 31, 2021, the Company had U.S. federal and state net operating losses (“NOLs”) and foreign
carryforward tax losses which are available to reduce future taxable income of (in thousands):

United Kingdom
United States
Other

Federal
$ 164,288
73,568
$
35,296
$

State/City
$
—
73,308
$
—
$

The U.S. federal and state NOLs incurred prior to January 1, 2018 in the amount of approximately $6.8 million and
$6.7 million, respectively, will begin to expire in 2036. The U.S. NOLs incurred after December 31, 2017 and the UK
carryforward tax losses will be indefinitely carried forward. Also, as of December 31, 2021, the Company had orphan
drug and research and development credits in the U.S. in the amount of $6.7 million which will begin to expire 2036
and research and development credits of $1.5 million in the UK which can be carried forward indefinitely. The U.S.
NOLs and UK carryforward tax losses may become subject to an annual limitation in the event of certain cumulative
changes in the ownership interest of significant shareholders, as defined under Section 382 Internal Revenue Code, as
well as UK tax rules. This could limit the amount of NOLs and carryforward tax losses that the Company can utilize
annually to offset future taxable income or tax liabilities. As of December 31, 2020, the Company had performed such
an analysis and determined that there were no limitations in the UK. However, for U.S. purposes, the Company
determined that a change of ownership occurred in April 2016 and again in June 2018. The Company is still in the
process of determining the annual limitation on losses that occurred prior to June 2018.

The Company's pre-tax earnings are as follows (in thousands):

United Kingdom
United States
Other

$

    December 31, 2021    December 31, 2020
(41,373)
(13,472)
(3,147)
(57,992)

(17,056) $
(49,223)
(13,282)
(79,561) $

$

The Company is subject to the corporate tax rate in the UK as a limited UK corporation.

F-28

 
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following table summarizes a reconciliation of income tax benefit compared with the amounts at the UK statutory
income tax rate (in thousands):

Statutory rate
Permanent differences - other
RTP and other adjustment
State and local rate, net of federal
tax
U.K. tax credit
U.S. tax credit
Foreign tax rate differential
UK rate change (19% & 25% at
expected DTA turn)
US state rate change
Change in valuation allowance
Actual income tax benefit effective
tax rate

    December 31, 2021    

     December 31, 2020    

(15,117)
934
(2,735)

19.00 %  
(1.17)%  
3.44 %  

(11,019) 
1,976  
(2,136)

19.00 %
(3.41)%
3.68 %  

(5,850)
(1,464)
(1,491)
(540)

7.35 %  
1.84 %  
1.87 %  
0.68 %  

(1,478) 
574
(1,242)
(254)

2.55 %
(0.99)%  
2.14 %  
0.44 %  

(10,247)
(447)
36,957

12.88 %  
0.56 %  
(46.45)%  

(2,234) 
25

15,788  

3.85 %
(0.04)%  
(27.22)%

—  

0.00 %  

—  

0.00 %

The Expense/(Benefit) for income taxes from continuing operations consists of the following (in thousands):

Current Tax Expense/(Benefit)
United Kingdom
United States
Other
Total Current
Deferred Tax Expense/(Benefit)
United Kingdom
United States
Other
Total Deferred
Change in Valuation Allowance
Total Income Tax Expense/(Benefit)

    December 31, 2021     December 31, 2020

—  
—  
—
—  

(16,079) 
(17,369) 
(3,509)
(36,957) 
36,957  
—  

—
—
—
—

(9,197)
(5,852)
(739)
(15,788)
15,788
—

F-29

 
 
   
  
 
 
 
 
   
  
 
 
 
 
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Deferred Tax Assets/(Liabilities) (in thousands):

Deferred Tax Assets:

Net operating loss carryforwards
Share-based compensation
R&D credit
Lease liability
Other

Deferred tax assets

Deferred Tax Liabilities:

Indefinite-lived intangibles
Depreciation
Right of use assets

Less: valuation allowance
Net deferred tax liability

December 31, 2021

December 31, 2020

$

$

74,007
10,314
7,498
7,040
1,481
100,340

(196)
(3,339)
(6,733)
(90,268)
(196)

$

$

43,831
5,392
5,819
6,150
298
61,490

(173)
(2,252)
(5,929)
(53,311)
(175)

ASC 740 requires a valuation allowance to reduce the deferred tax assets reported if, based on the weight of available
evidence, it is more likely than not that some portion or all of the deferred tax assets will not be realized. After
consideration of all the evidence, both positive and negative, the Company has recorded a full valuation allowance,
after consideration of the reversal of the deferred tax liabilities for the ROU assets and fixed assets, against its deferred
tax assets at December 31, 2021 and 2020 because the Company's management has determined that is it more likely
than not that these assets will not be fully realized.

Changes to the UK corporation tax rates have been announced which will impact future accounting periods. Finance
Act 2021 increases the UK corporation tax rate from 19% to 25% effective April 1, 2023 for companies with profits in
excess of GBP 250,000. As the Company does not expect to be able to utilize its carryforward tax losses in the UK
until after April 2023, the deferred tax has been calculated using a tax rate of 25%.

As of December 31, 2021 and 2020, the Company recorded unrecognized tax positions of $0.7 and $0.5 million
respectively. The unrecognized tax positions are netted with deferred tax assets above with full valuation allowance.
The changes to unrecognized tax positions for 2021 and 2020 were as follows (in thousands):

Unrecognized tax benefits as of January 1
Gross increases/(decreases) related to current year
Gross increases/(decreases) related to prior years
Foreign currency translation
Unrecognized tax positions as of December 31

     December 31, 2021      December 31, 2020
—
513   $
  $
138
165  
375
(12) 
—
—
513
666   $

  $

The Company will recognize interest and penalties related to uncertain tax positions in income tax expense. As of
December 31, 2021 and 2020, the Company had no accrued interest or penalties related to uncertain tax positions and
no amounts have been recognized in the Company's statements of operations and comprehensive loss.

The Company files income tax returns in the United States, UK, various foreign jurisdictions and various U.S. state 
jurisdictions.  In the U.S., all years remain subject to examination.  The earliest year subject to the statute of limitations 
in the UK is 2019.  

F-30

 
 
 
 
 
 
 
 
 
 
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

MeiraGTx Holdings plc is a UK tax resident with no earnings in its foreign subsidiaries and the Company does not 
expect any temporary basis difference in its investment in these subsidiaries to reverse in the foreseeable future.  
Therefore, the Company has not recorded deferred taxes on the outside basis difference in its foreign subsidiaries.  It is 
not probable to compute the amounts, if any.

New Tax Legislation

Many governments have enacted or are currently contemplating economic stimulus and financial aid measures. Many
of these measures include deferring the due dates for tax payments, including both income tax and other taxes. The
Coronavirus Aid, Relief, and Economic Security Act ("CARES Act") was enacted on March 27, 2020 in the United
States to address the economic impacts of the COVID-19 pandemic. The CARES Act includes corporate income tax,
payroll tax, and other provisions. While the Company may receive financial, tax, or other benefits under the bill, this
legislation did not impact the Company during the year ended December 31, 2021 and 2020.

12.  Related Party Transactions

Collaboration and License Agreements

Janssen Pharmaceuticals, Inc.

On January 30, 2019, the Company entered into a Collaboration Agreement with Janssen for the research,
development and commercialization of gene therapies for the treatment of IRD. Under the agreement, Janssen paid the
Company a non-refundable upfront fee of $100.0 million. Janssen and the Company will collaborate to develop the
Company’s current clinical programs in retinitis pigmentosa and two genetic forms of achromatopsia and Janssen has
the exclusive right to commercialize these three product candidates (“Clinical IRD Product Candidates”) globally.

Pursuant to the Collaboration Agreement, the Company and Janssen also agreed on a research collaboration to develop
a pipeline of preclinical inherited retinal disease gene therapy candidates (“Research IRD Product Candidates”). The
parties will select and prioritize the Research IRD Product Candidates and Janssen has the right to opt-in for a fee for
each of the specified targets (each an “Option Target”) to obtain certain development, manufacturing and
commercialization rights for the Research IRD Product Candidates.

Unless terminated earlier under certain termination clauses, the Collaboration Agreement will continue in effect, on a
product-by-product and country-by-country basis, until such time as the royalty terms expire in such country. The
Company has determined enforceable rights exist in the Collaboration Agreement as the termination clauses are
substantive termination penalties by way of the non-refundable upfront fee and the reversion of any licensed
intellectual property granted to Janssen upon the termination of the agreement.

On February 27, 2019, in connection with a private placement, the Company issued 2,898,550 ordinary shares to
Johnson & Johnson Innovation – JJDC, Inc. (“JJDC”), the investment arm of Johnson & Johnson and owner of
Janssen, on the same terms and conditions as the other investors in the offering. After the offering, JJDC became a
related party.

Clinical IRD Product Candidates

Under the Collaboration Agreement, the Company and Janssen will jointly develop Clinical IRD Product Candidates
to permit Janssen to commercialize such Clinical IRD Product Candidates under an exclusive license from the
Company. In general, the Company will have the primary responsibility to develop each Clinical IRD Product
Candidate in accordance with the development plan for each Clinical IRD Product Candidate, including where
applicable, conducting any necessary research in order to submit the applicable regulatory filings to

F-31

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

regulatory authorities. The Company will manufacture these products in its cGMP manufacturing facilities for both
clinical and commercial supply. Janssen will pay 100% of the clinical and commercialization costs of the products and
the Company is eligible to receive untiered 20% royalties on net sales of products and additional development and
commercialization milestones up to $340.0 million.  The Company received its first milestone payment of $30.0
million in December 2021.

Research IRD Product Candidates

Under the Collaboration Agreement, the Company and Janssen will collaborate to develop Research IRD Product
Candidates, with Janssen paying for the majority of the research costs. Janssen has the right to exclusively license any
product coming out of the collaboration at the time of an investigational new drug application for an additional fee for
each Research IRD Product Candidate. Janssen will then pay 100% of the clinical and commercialization costs for
these Research IRD Product Candidates and the Company will receive an untiered royalty on net sales in the high
teens as well as development milestones for each Research IRD Product Candidate.

Revenue Recognition under the Collaboration Agreement

The Collaboration Agreement is accounted for under ASC 808, however, ASC 808 does not address recognition or
measurement matters. Therefore, the Company will account for the recognition and measurement of consideration
under ASC 606. In determining the appropriate amount of revenue to be recognized under ASC 606, the Company
performed the following steps: (i) identified the promised goods or services in the contract; (ii) determined whether the
promised goods or services are performance obligations including whether they are distinct in the context of the
contract; (iii) measurement of the transaction price, including the constraint on variable consideration; (iv) allocation
of the transaction price to the performance obligations; and (v) recognition of revenue when (or as) the Company
satisfies each performance obligation. The Company evaluated the potential performance obligations in the contract,
which included the exclusive license to Clinical IRD Product Candidates, the research, development and
manufacturing services (“the services”), and the participation in various joint committees and determined that none of
the performance obligations by themselves were distinct. Goods and services that are not distinct are bundled with
other goods or services in the contract until a bundle of goods or services that is distinct is created. The services, when
combined with the licenses, represent a bundle and should be accounted for as a single performance obligation due to
the relevance of the services to the value of the early-stage license and the potential for the intellectual property to be
significantly modified during the services period. The Company also evaluated whether or not the right to purchase
exclusive option rights for specified Research IRD Product Candidates represents future performance obligations and
concluded that these represent a separate buyer decision at market rates, rather than a material right performance
obligation. As such, these options have been excluded from the initial allocation of transaction price and the Company
will account for these options as separate contracts when and if Janssen elects to exercise the options.

Under ASC 606, the Company recognized collaboration revenue using the cost-to-cost input method, which it believes
best depicts the transfer of control to the customer. Under the cost-to-cost input method, the extent of progress towards
completion is measured based on the ratio of actual costs incurred to the total estimated costs expected upon satisfying
the combined performance obligation by the potential product candidate. Under this method, revenue is being recorded
as a percentage of the estimated transaction price based on the extent of progress towards completion. Under ASC 606,
the estimated transaction price includes variable consideration subject to constraints. The Company does not include
variable consideration to the extent that it is probable that a significant reversal in the amount of cumulative revenue
recognized will occur when any uncertainty associated with the variable consideration is resolved. The estimate of the
Company’s measure of progress and estimate of variable consideration to be included in the transaction price will be
updated at each reporting date as a change in estimate. The amount related to the unsatisfied portion will be recognized
as that portion is satisfied over time.

Under ASC 606 the Company accounts for (i) the licenses it conveyed with respect to the Clinical IRD Product
Candidates and (ii) its obligations to perform services as a single performance obligation under the Collaboration

F-32

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Agreement with Janssen on a product candidate basis. Janssen’s right to purchase exclusive options to obtain certain
development, manufacturing and commercialization rights are accounted for separately as they do not represent
material rights, based on the criteria of ASC 606. Upon the exercise of any purchased option by Janssen, the contract
promises associated with an Option Target would use a separate cost-to-cost model for purposes of revenue
recognition under ASC 606.

During the year ended December 31, 2019, the Company received a $100.0 million non-refundable upfront fee from
Janssen and during the year ended December 31, 2021, the Company received a $30.0 million milestone payment. The
Company allocated these amounts plus other variable consideration not subject to constraint to each identified
performance obligation using a combination of methods allowable under ASC 606. The Company applies the practical
expedient in Topic 606 and does not include disclosures regarding amounts for variable consideration allocated to
wholly-unsatisfied performance obligations or wholly-unsatisfied distinct goods that form part of a single performance
obligation, if any. This variable consideration includes expected reimbursement of research and development costs.

During the years ended December 31, 2021 and 2020, the Company recognized $37.7 million and $15.6 million,
respectively, of the deferred revenue – related party as license revenue.

The Company also recognized $69.0 million and $57.4 million during the years ended December 31, 2021 and 2020,
respectively, related to the reimbursement of research and development expenses.

As of December 31, 2021, the Company expects to recognize the remaining $64.9 million in deferred revenue
associated with the non-refundable upfront fee and milestone payment over the estimated research and development
period using the cost-to-cost input method over an estimated period of approximately 3.5 years.

A summary of the deferred revenue recognition is as follows (in thousands):

Deferred revenue at December 31, 2019
Deferred revenue recognized as license revenue during the year ended December 31, 2020
Effects of exchange rate
Deferred revenue at December 31, 2020
Milestone payment from Janssen
Deferred revenue recognized as license revenue during the year ended December 31, 2021
Effects of exchange rate
Deferred revenue at December 31, 2021

     $

$

86,214
(15,563)
2,191
72,842
30,000
(37,701)
(275)
64,866

Leases

ARE Lease

Effective July 1, 2016, the Company entered into a non-cancellable operating lease (the ”ARE Lease”) for laboratory
and related office facilities in New York with ARE-East River Science Park, LLC (“ARE”), an entity that is under
common control by an entity that is a minority shareholder of the Company and whose executive chairman and
founder is a director of the Company. The ARE Lease provided for monthly base rent and property management fees,
including rent escalations and rent holidays, plus operating expenses during the lease term, which was scheduled to
expire on December 31, 2021. The Company recorded monthly rent expense on a straight-line basis from July 1, 2016
through February 29, 2020, the date the ARE Lease was terminated as described below.

On January 28, 2020, the Company and ARE mutually agreed to terminate the lease with no further obligation for 
either party effective as of February 29, 2020.  Accordingly, the remaining right of use asset and operating lease 

F-33

 
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

liability in the amount of $0.9 million and $1.0 million, respectively, was written off which resulted in a gain of $0.1
million.

Total rent expense under this operating lease was $0 and $0.1 million for the years ended December 31, 2021 and
2020, respectively.

ARE Vivarium Lease

Effective May 1, 2019, the Company entered into an operating lease for vivarium space with ARE, which was
subsequently amended to add additional space within the vivarium. The initial lease had a term of twelve months
which automatically renews on an annual basis.

The rent expense under this operating lease was $0.09 million and $0.02 million for the years ended December 31,
2021 and 2020, respectively, which are included in loss from operations.

The Company made cash payments to ARE in connection with this operating lease in the amount of $0.09 million and
$0.02 million during the years ended December 31, 2021 and 2020, respectively.

There were no amounts due to ARE under this operating lease at December 31, 2021 and 2020.

As of December 31, 2021, the Company’s lease commitment is approximately $0.09 million.

Kadmon Lease

The Company leased office space on a month-to-month basis from Kadmon Corporation, LLC (“Kadmon”).

During the years ended December 31, 2021 and 2020, the Company incurred and paid rent charges from Kadmon in
the amount of $0.5 million and $0.6 million, respectively, which are included in loss from operations.

This lease was terminated effective November 12, 2021.

13.  Leases

The Company has commitments under operating leases for laboratory, warehouse, clinical trial sites and office space.
The Company also has finance leases for manufacturing space and office equipment. The Company’s leases have
initial lease terms ranging from 3 years to 191 years. Certain lease agreements contain provisions for future rent
increases. Payments due under the lease contracts include fixed payments.

Total rent expense recorded under these leases was $5.0 million and $3.3 million for the years ended December 31,
2021 and 2020, respectively.

On August 4, 2020, Meira Ireland entered into two agreements (the “Agreements”) with Shannon Commercial
Enterprises DAC trading as Shannon Commercial Properties, to acquire two properties in the Shannon Free Zone in
Shannon, Ireland for an aggregate price of €18 million, or approximately $21.2 million. These properties will serve as
the Company’s second cGMP viral vector manufacturing facility and its first cGMP plasmid and DNA production
facility.

The closing for the first building occurred in August 2020 and the closing for the second building occurred in January
2021. The total cost of the first and second buildings, including taxes and legal fees, was €11.9 million and €7.5
million, or approximately $13.8 million and $8.9 million, respectively, and have been recorded as right of use

F-34

Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

assets in the consolidated balance sheets as of December 31, 2021. There is no corresponding lease liability as the 
Company paid the full cost on the date of the closings.

At the closings, Meira Ireland entered into a lease for each property providing for a long leasehold interest of
approximately 191 years.

The leases also include customary terms and conditions, with a nominal annual lease cost and annual maintenance fees
of approximately €0.3 million, or approximately $0.4 million, in the aggregate, which amount is subject to change
depending on the annual maintenance costs within the Shannon Free Zone development.

During the year ended December 31, 2021, the Company recognized seven operating leases for locations in connection
with its clinical trials for its IRD product candidates with initial lease terms between 5 years and 6 years. Certain lease 
agreements contain provisions for tenant allowances and future rent increases. Payments due under the lease contracts 
include fixed payments. In conjunction with these operating leases, the Company recognized initial operating lease 
right-of-use assets in the amount of $2.2 million and corresponding lease liabilities in the amount of $2.3 million 
which are included in the right-of-use assets and lease obligations in the consolidated balance sheets as of December 
31, 2021.

The components of lease cost for the years ended December 31, 2021 and 2020 are as follows (in thousands):

Finance lease cost
Amortization of right-of-use assets
Interest on lease liabilities
Total finance lease cost
Operating lease cost
Short-term lease cost
Total lease cost

2021

2020

$

$

1,227
2
1,229
5,002
751
6,982

$

$

519
3
522
3,423
714
4,659

Amounts reported in the consolidated balance sheets for leases where the Company is the lessee as of December 31,
2021 and 2020 were as follows (in thousands):

Operating leases
Right-of-use asset
Capitalized lease obligations
Finance leases
Right-of-use asset
Capitalized lease obligations
Weighted-average remaining lease term
Operating leases
Finance leases
Weighted-average discount rate
Operating leases
Finance leases

December 31,
2021

December 31,
2020

$
$

$
$

22,782
23,721

27,645
12

$
$

$
$

21,486
22,221

21,596
28

6.5 years
176.7 years

8.5 %  
8.0 %  

7.0 years
175.1 years

8.6 %  
8.0 %  

F-35

   
  
 
 
 
 
 
 
 
 
  
 
  
 
    
  
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Other information related to leases as of the years ended December 31, 2021 and 2020 are as follows (in thousands):

Cash paid for amounts included in the measurement of
lease liabilities
Operating cash flows from finance leases
Operating cash flows from operating leases
Financing cash flows from finance leases

$
$
$

Right-of-use assets obtained in exchange for lease liabilities 
$
Operating leases
$
Finance leases

2021

2020

16
4,969
2

$
$
$

4,424

$
— $

22
3,791
3

1,889
—

Future minimum lease payments under non-cancellable leases as of December 31, 2021 are as follows (in thousands):

2022
2023
2024
2025
2026
Thereafter
Total undiscounted lease payments
Less: Imputed interest
Total lease liabilities

     Operating Leases    

$

$

$

5,252
5,382
5,223
5,226
4,996
4,251
30,330
(6,609)
23,721

 Finance Leases 
13
$
—
—
—
—
—
13
(1)
12

$

$

14.  Commitments

License Agreement

Effective February 4, 2015, the Company entered into an exclusive worldwide license agreement with UCL Business,
PLC (“UCL Business”) to develop up to eight programs using certain ocular gene therapy technology. Under the terms
of the agreement, the Company had agreed to pay UCL Business certain sales milestone payments, if achieved, in the
aggregate amount of £39.8 million, or approximately $53.7 million using the exchange rate at December 31, 2021, and
royalties on net sales, as defined upon commercialization. Additionally, the Company is responsible for all patent
prosecution and maintenance costs incurred and has also agreed to pay UCL Business an annual maintenance fee of
£0.5 million, or approximately $0.07 million, until the first commercial sale of a product. The agreement terminates
upon the later of (i) the last valid claim in a relevant product, (ii) the expiration of regulatory exclusivity to all licensed
products, or (iii) the 10th anniversary of the first commercial sale of a product.

On July 28, 2017, March 15, 2018 and September 7, 2018, the Company entered into additional exclusive worldwide
license agreements with UCL Business under the same terms as the February 4, 2015 worldwide license agreement.

In January and February 2019, the Company amended and restated the following agreements: (i) the License
Agreement, dated February 4, 2015, as amended, between the Company and UCL Business; (ii) the License
Agreement, dated July 28, 2017, as amended, between the Company and UCL Business; and (iii) the License
Agreement, dated March 15, 2018, between the Company and UCL Business to establish new stand-alone license

F-36

 
        
  
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

agreements for the following inherited retinal disease programs: (a) achromatopsia (“ACHM”) caused by mutations in
CNGB3; (b) ACHM caused by mutations in CNGA3; (c) X-linked retinitis pigmentosa (“XLRP”); and (d) RPE65-
mediated IRD.

The Company’s obligation to pay UCL Business a share of certain sublicensing revenues, as was provided under the
February 4, 2015 agreement, has been removed from each of the stand-alone agreements with respect to the IRD
programs listed above. Each of the stand-alone agreements now reflects terms substantially similar to those of the
February 4, 2015 agreement.

Additionally, under the new stand-alone agreement related to CNGB3 the Company paid UCL Business an upfront
payment of £1.5 million, or approximately $1.2 million, and issued 158,832 of the Company’s ordinary shares, which
were valued at £1.5 million, or approximately $2.0 million.

Effective March 23, 2020, the Company entered into another worldwide license agreement with UCL Business, to
develop an additional ocular gene therapy technology. Under the terms of the agreement, the Company agreed to pay
UCL Business certain development and sales milestone payments, if achieved, in the aggregate amount of $39.25
million and royalties on net sales, as defined upon commercialization. Additionally, the Company is responsible for all
patent prosecution and maintenance costs incurred and also agreed to pay UCL Business an upfront payment of $0.05
million and an annual maintenance fee of $0.03 million until the first commercial sale of a product. The agreement
terminates upon the later of (i) the last valid claim in a relevant product, or (ii) the 10th anniversary of the first
commercial sale of a product.

The Company incurred research and development expenses under the agreements in the amount of $0.4 million and
$0.03 million during the years ended December 31, 2021 and 2020, respectively.

The amount due to UCL under the license agreements at December 31, 2021 and 2020 is $0.01 million and $0, and is
included in accounts payable and accrued expenses on the consolidated balance sheets.

15.  Employee Benefit Plans

United States

On January 1, 2017, Meira LLC adopted a defined contribution retirement plan that complies with Section 401(k) of
the Internal Revenue Code. All Meira LLC employees over the age of 21 are eligible to participate in the plan after
three consecutive months of service. Employees are able to defer a portion of their pay into the plan on the first day of
the month or after the day all age and service requirements have been met. The plan provides for a Company matching
contribution. All eligible employees receive an employer matching contribution equal to the lesser of the amount the
employee contributes to the plan or 6% of their salary up to the annual IRS limit.

United Kingdom

On August 1, 2016, Meira UK II adopted a defined contribution group personal pension plan that complies with
HMRC for tax relief. All Meira UK II employees are eligible to participate in the plan upon joining the company and
providing the required services. All eligible employees, if they elect to join the pension scheme, receive an employer
pension contribution equal to 7.5% to 10.0% of their pensionable earnings. Currently, employees are required to
contribute 0.5%, to meet minimum legal pension funding levels of 8%, but may make optional contributions up to the
annual allowance HMRC limits.

F-37

Table of Contents

Netherlands

MEIRAGTX HOLDINGS PLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Meira Netherlands operates a defined contribution pension.  All of its employees participate in the plan.  All eligible 
employees receive an employer pension contribution and are also required to contribute.

Ireland

On November 20, 2020, MeiraGTx Ireland adopted a defined contribution pension plan.  All MeiraGTx Ireland 
employees are eligible to participate in the plan upon joining the Company. All eligible employees, if they elect to join 
the pension scheme, receive an employer pension contribution. The Company’s current contribution, exclusive of an 
employee match, is 4.5%, which exceeds Revenue Ireland requirements.

Belgium

Meira Belgium operates a defined contribution pension plan. All eligible employees receive an employer pension
contribution of 8% of their annual salary. Employees do not make contributions to the plan.

During the years ended December 31, 2021 and 2020, employer contributions to all plans were $1.8 million and $1.1 
million, respectively.  

F-38

Table of Contents

ITEM 9.
FINANCIAL DISCLOSURE

CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND

Not Applicable.

ITEM 9A.

CONTROLS AND PROCEDURES

Limitations on Effectiveness of Controls and Procedures

In designing and evaluating our 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.  In addition, the design of disclosure controls and procedures must reflect the fact that there are resource 
constraints and that management is required to apply judgment in evaluating the benefits of possible controls and 
procedures relative to their costs.

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer (principal executive officer) and Chief 

Financial Officer (principal financial officer), evaluated, as of the end of the period covered by this Form 10-K, 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”)).  Based on that evaluation, our Chief Executive Officer 
(principal executive officer) and Chief Financial Officer (principal financial officer) concluded that our disclosure controls 
and procedures were effective at the reasonable assurance level at the end of the period covered by this Form 10-K.

Management’s Report on Internal Control Over Financial Reporting

Management is responsible for establishing and maintaining adequate internal control over financial reporting, as

defined in Exchange Act Rule 13a-15(f). Our internal control over financial reporting is a process designed under the
supervision of our Chief Executive Officer and Chief Financial Officer, and affected by our board of directors,
management and other personnel, to provide reasonable assurance regarding the reliability of financial reporting and the
preparation of our financial statements for external reporting purposes in accordance with U.S. GAAP and includes policies
and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the
transactions and dispositions of our assets, (ii) provide reasonable assurance that transactions are recorded as necessary to
permit preparation of financial statements in accordance with U.S. GAAP, and that our receipts and expenditures are being
made only in accordance with authorizations of our management and directors and (iii) provide reasonable assurance
regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could have a
material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect

misstatements. Also, projections of any evaluation of the effectiveness to future periods are subject to the risk that controls
may become inadequate because of changes in conditions, or that the degree of compliance with policies and procedures
may deteriorate.

Management assessed the effectiveness of our internal control over financial reporting as of December 31, 2021.

In making this assessment, management used the criteria set forth by the Committee of Sponsoring Organizations of the
Treadway Commission (COSO) in Internal Control—Integrated Framework (2013). Based on its assessment and those
criteria, management has concluded that we maintained effective internal control over financial reporting as of December
31, 2021.

119

Table of Contents

Exemption from Attestation Report of the Registered Public Accounting Firm on Internal Control Over Financial
Reporting

This Form 10-K does not include an attestation report on our internal control over financial reporting from our
independent registered public accounting firm since we qualify as an “emerging growth company” as defined under the
JOBS Act.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-

15(f) under the Exchange Act) during the quarter ended December 31, 2021 that have materially affected, or are reasonably
likely to materially affect, our internal control over financial reporting.

ITEM 9B.

OTHER INFORMATION

Not applicable.

ITEM 9C.

DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

Not applicable.

120

Table of Contents

PART III

ITEM 10.

DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

The information required by this Item is incorporated by reference to our definitive proxy statement for our 2022

annual shareholder meeting to be filed with the SEC within 120 days of the fiscal year ended December 31, 2021.

ITEM 11.

EXECUTIVE COMPENSATION

The information required by this Item is incorporated by reference to our definitive proxy statement for our 2022

annual shareholder meeting to be filed with the SEC within 120 days of the fiscal year ended December 31, 2021.

ITEM 12.
RELATED STOCKHOLDER MATTERS

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND

Securities Authorized for Issuance Under Equity Compensation Plans (as of December 31, 2021)

The following table provides information as of December 31, 2021, regarding our ordinary shares that may be

issued under the MeiraGTx Holdings plc 2016 Equity Incentive Plan, as amended (the “2016 Plan”), the MeiraGTx
Holdings plc 2018 Incentive Award Plan (the “2018 Plan”) and the MeiraGTx Holdings plc 2018 Employee Stock
Purchase Plan (the “2018 ESPP”).

Plan category:
Equity compensation plans approved by shareholders  

(a)

Number of Securities  
to be Issued Upon  

Exercise of

  Outstanding Options,  
  Warrants, and Rights  

     Weighted-Average
Exercise Price of
Outstanding
Options,
Warrants, and
Rights
(b)

     Number of Securities
Available for Future
Issuance Under Equity
Compensation Plans
(excludes securities
reflected in column(a))
(c)

2016 Plan(1)
2018 Plan (2)(3)
2018 ESPP (4)

Equity compensation plans not approved by
shareholders

Total

 1,184,459
 6,155,231

$
$
 —  

 —  
$

 7,339,690

 5.26  
 15.13  
 —  

 —  
 13.16  

 —
 1,195,477
 1,592,528

 —
 2,788,005

(1) In connection with our IPO, we assumed the 2016 Plan. As the 2016 Plan was previously approved by our

shareholders and, as we will not make future grants or awards under these plans, it is listed as “approved by
shareholders.” As such, the securities remaining available under the 2016 Plan have been excluded from the table
above.

(2) Pursuant to the terms of the 2018 Plan, the number of ordinary shares available for issuance under the 2018 Plan

automatically increases on each January 1, until and including January 1, 2028, by an amount equal to the lesser of:
(a) 4% of the aggregate number of ordinary shares outstanding on the final day of the immediately preceding
calendar year and (b) such smaller number of ordinary shares as is determined by our board of directors.

(3) The weighted average exercise price of outstanding awards does not take into account the shares issuable upon vesting 

of outstanding restricted share units which have no exercise price.  At December 31, 2021 there were a total of 
1,415,000 shares subject to restricted share units included in the Number of Securities to be Issued Upon Exercise of 
Outstanding Options, Warrants and Rights.

(4) Pursuant to the terms of the 2018 ESPP, the number of ordinary shares available for issuance under the 2018 ESPP
automatically increases on each January 1, until and including January 1, 2028, by an amount equal to the lesser of:
(a) 1% of the aggregate number of ordinary shares outstanding on the final day of the immediately preceding
calendar year and (b) such smaller number of ordinary shares as is determined by our board of directors, subject to the
limit set forth in the 2018 ESPP.

121

    
 
 
 
 
 
 
 
 
 
 
 
   
   
  
 
 
 
 
 
Table of Contents

Other

The remaining information required by this Item is incorporated by reference to our definitive proxy statement for
our 2022 annual shareholder meeting to be filed with the SEC within 120 days of the fiscal year ended December 31, 2021.

ITEM 13.
INDEPENDENCE

CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR

The information required by this Item is incorporated by reference to our definitive proxy statement for our 2022

annual shareholder meeting to be filed with the SEC within 120 days of the fiscal year ended December 31, 2021.

ITEM 14.

PRINCIPAL ACCOUNTANT FEES AND SERVICES

The information required by this Item is incorporated by reference to our definitive proxy statement for our 2022

annual shareholder meeting to be filed with the SEC within 120 days of the fiscal year ended December 31, 2021.

122

Table of Contents

ITEM 15.

EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

EXHIBIT INDEX

PART IV

Exhibit Number

Exhibit Description

Incorporated by Reference

     Form      File No.

     Exhibit     

Filing
Date

Filed/
Furnished
Herewith

3.1

4.1

4.2

4.3

10.1#

10.2#

10.3#

10.4#

10.5

10.6

10.7#

10.8#

10.9#

10.10†

10.11#

10.12#

Amended and Restated Memorandum and
Articles of Association of the Registrant.

Specimen Share Certificate evidencing the
ordinary shares of the Registrant.

Shareholder Agreement.

Description of Securities.

10-Q

001-38520

3.1

8/7/19

S-1

333-224914

10-K

001-38520

10-K

001-38520

4.1

4.2

4.3

5/29/18

3/11/20

3/11/20

2016 Equity Incentive Plan, as amended, and
form of option agreements thereunder.

S-1/A 333-224914

10.1

5/29/18

2018 Incentive Award Plan and forms of award
agreements thereunder.

S-1/A 333-224914

Non-Employee Director Compensation Program.

10-Q

001-38520

10.2

10.1

5/29/18

08/11/21

Form of Indemnification Agreement for Directors
and Officers.

S-1/A 333-224914

10.4

5/29/18

License and Sub-Lease Agreement, dated
May 31, 2019, between MeiraGTx LLC and
Imclone Systems, LLC.

Lease Agreement, effective February 2, 2016,
among MeiraGTx Limited, Moorfields Eye
Hospital NHS, Foundation Trust and Kadmon
Corporation LLC.

Employment Agreement, dated February 15,
2016, between MeiraGTx Limited and
Alexandria Forbes, Ph.D., as amended.

Employment Agreement, dated February 15,
2016 between MeiraGTx Limited and Richard
Giroux, as amended.

Employment Agreement, dated April 27, 2015,
between MeiraGTx Limited and Stuart Naylor,
Ph.D., as amended.

Agreement and Plan of Merger, dated
December 31, 2015, among MeiraGTx
Acquisition Corporation, BRI-Alzan, Inc., F-
Prime Inc., Gregory Petsko, Dagmar Ringe,
Brandeis University and MeiraGTx Limited.

10-Q

001-38520

10.2

8/7/19

S-1

333-224914

10.6

5/14/18

S-1/A 333-224914

10.7

5/29/18

S-1/A 333-224914

10.8

5/29/18

S-1/A 333-224914

10.9

5/29/18

S-1/A 333-224914

10.14

5/29/18

2018 Employee Share Purchase Plan.

S-1/A 333-224914

10.15

5/29/18

UK Sub-Plan Under the 2018 Incentive Award
Plan.

10-K

001-38520

10.12

3/26/19

123

    
    
Table of Contents

Exhibit Number

Exhibit Description

Incorporated by Reference

10.13#

10.14#

10.15

10.16

10.17

10.18

10.19†

10. 20†

10. 21†

10. 22†

10. 23†

10. 24†

10. 25†

     Form      File No.

     Exhibit     

Filing
Date

Filed/
Furnished
Herewith

Form of Option Grant Notice and Option
Agreement Under the UK Sub-Plan to the 2018
Incentive Award Plan.

10-K

001-38520

Form of Change in Control Agreement.

10-K

001-38520

10.13

10.14

3/26/19

3/11/21

Lease agreement by and between Moorfields Eye
Hospital NHS Foundation Trust and MeiraGTx
UK II Limited, dated July 30, 2018.

Lease agreement by and between Moorfields Eye
Hospital NHS Foundation Trust and MeiraGTx
UK II Limited, dated July 30, 2018.

Transfer of Title, dated December 14, 2018, and
Lease, dated October 12, 2001, relating to the
Pharmacy Manufacturing Unit, Britannia Walk,
London, England.

Overage Deed, dated December 14, 2018,
between Moorfields Eye Hospital NHS
Foundation Trust and MeiraGTx UK II Limited
relating to the Pharmacy Manufacturing Unit,
Britannia Walk, London, England.

Consulting Agreement, dated October 5, 2018,
between MeiraGTx Holdings plc, Vector
Consulting LLC, Michael G. Kaplitt, Matthew
During, and Stephen B. Kaplitt.

License Agreement (RPE65), dated January 29,
2019, as amended and restated by and among
UCL Business PLC, MeiraGTx UK II Limited
and MeiraGTx Limited.

License Agreement (CNGB3), dated January 29,
2019, as amended and restated by and among
UCL Business PLC, MeiraGTx Holdings plc,
MeiraGTx UK II Limited and MeiraGTx
Limited.

License Agreement (CNGA3), dated January 29,
2019, as amended and restated by and among
UCL Business PLC, MeiraGTx UK II Limited
and MeiraGTx Limited.

License Agreement (RPGR), dated February 5,
2019, as amended and restated by and among
UCL Business PLC, MeiraGTx UK II Limited
and MeiraGTx Limited.

Amendment No. 4 to Exclusive License
Agreement, dated January 29, 2019, between
UCLB and MeiraGTx Limited.

Collaboration, Option and License Agreement,
dated January 30, 2019, by and among Janssen
Pharmaceuticals, Inc., MeiraGTx UK II Limited
and MeiraGTx Holdings plc.

124

10-Q

001-38520

10.4

8/8/18

10-Q

001-38520

10.5

8/8/18

8-K

001-38520

10.1

12/14/18

8-K

001-38520

10.2

12/14/18

10-K

001-38520

10.19

3/26/19

10-K

001-38520

10.20

3/26/19

10-K

001-38520

10.21

3/26/19

10-K

001-38520

10.22

3/26/19

10-K

001-38520

10.23

3/26/19

10-K

001-38520

10.24

3/26/19

10-K

001-38520

10.25

3/26/19

    
    
Table of Contents

Exhibit Number

Exhibit Description

Incorporated by Reference

10.26††

10. 27†

10.28#

10.29#

10.30

10.31#

10.32#

10.33

10.34

10.35#

10.36#

21

23.1

First Amendment to Collaboration, Option and
License Agreement, dated December 16, 2021.

Registration Rights Agreement, dated
February 26, 2019, by and among MeiraGTx
Holdings plc and the investors named therein.

Employment Agreement, dated March 25, 2019,
between MeiraGTx, LLC and Bruce Gottlieb.

Separation and Release Agreement, dated
January 7, 2020, between MeiraGTx Holdings
plc and Bruce Gottlieb.

Agreement for Lease with Landlord’s
Refurbishment Works, dated May 29, 2019,
between MeiraGTx UK II Limited and Provost 1
Limited and Provost 2 Limited, including agreed
form of Lease between MeiraGTx UK II Limited
and Provost 1 Limited and Provost 2 Limited.

Form of Restricted Share Unit Grant Notice and
Restricted Share Unit Agreement Under the 2018
Incentive Award Plan.

Form of Restricted Share Unit Grant Notice and
Restricted Share Unit Agreement Under the UK
Sub-Plan to the 2018 Incentive Award Plan.

Particulars and Conditions of Sale of Building 2,
Block K, Shannon Free Zone, Shannon, County
Clare, Ireland, dated as of August 4, 2020, by and
between Shannon Commercial Enterprises DAC
trading as Shannon Commercial Properties and
MeiraGTx Ireland DAC, including agreed form
of Lease between Shannon Commercial
Enterprises DAC and MeiraGTx Ireland DAC.

Particulars and Conditions of Sale of Building 3,
Block K, Shannon Free Zone, Shannon, County
Clare, Ireland, dated as of August 4, 2020, by and
between Shannon Commercial Enterprises DAC
trading as Shannon Commercial Properties and
MeiraGTx Ireland DAC, including agreed form
of Lease between Shannon Commercial
Enterprises DAC and MeiraGTx Ireland DAC.

Deferred Compensation Plan for Non-Employee
Directors.

Form of Restricted Share Unit Grant Notice and
Restricted Share Unit Agreement for Non-
Employee Directors Under the 2018 Incentive
Award Plan.

List of Subsidiaries.

Consent of Ernst & Young LLP.

125

     Form      File No.

     Exhibit     

Filing
Date

Filed/
Furnished
Herewith

*

8-K

001-38520

10.2

2/26/19

10-Q

001-38520

10.1

5/14/19

10-Q

001-38520

10.1

5/7/20

10-Q

001-38520

10.3

8/7/19

10-K

001-38520

10.30

3/11/20

10-K

001-38520

10.31

3/11/20

10-Q

001-38520

10.1

11/5/20

10-Q

001-38520

10.2

11/5/20

*

*

*

*

    
    
Table of Contents

Exhibit Number

Exhibit Description

Incorporated by Reference

     Form      File No.

     Exhibit     

Filing
Date

Filed/
Furnished
Herewith

31.1

31.2

32.1

32.2

101.INS

101.SCH

101.CAL

101.DEF

101.LAB

101.PRE

104

Certification of Chief Executive Officer pursuant
to Rules 13a-14(a)/15d-14(a) under the Securities
Exchange Act of 1934, as amended.

Certification of Chief Financial Officer pursuant
to Rules 13a-14(a)/15d-14(a) under the Securities
Exchange Act of 1934, as amended.

Certification of Chief Executive Officer pursuant
to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002.

Certification of Chief Financial Officer pursuant
to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002.

Inline XBRL Instance Document.

Inline XBRL Taxonomy Extension Schema
Document.

Inline XBRL Taxonomy Extension Calculation
Linkbase Document.

Inline XBRL Taxonomy Definition Linkbase
Document.

Inline XBRL Taxonomy Label Linkbase
Document.

Inline XBRL Taxonomy Extension Presentation
Linkbase Document.

Cover Page Interactive Data File (formatted as
Inline XBRL and contained in Exhibit 101).

*

*

**

**

*

*

*

*

*

*

*

*     Filed herewith
**   Furnished herewith
#     Management contract or compensation plan or arrangement
†     Portions of this exhibit (indicated by asterisks) have been omitted pursuant to a request for confidential treatment

pursuant to Rule 406 under the Securities Act of 1933, as amended

†† Portions of this exhibit (indicated by asterisks) have been omitted pursuant to Item 601(b)(10)(iv) of Regulation S-K

Certain agreements filed as exhibits to this Form 10-K contain representations and warranties that the parties

thereto made to each other. These representations and warranties have been made solely for the benefit of the other parties
to such agreements and may have been qualified by certain information that has been disclosed to the other parties to such
agreements and that may not be reflected in such agreements. In addition, these representations and warranties may be
intended as a way of allocating risks among parties if the statements contained therein prove to be incorrect, rather than as
actual statements of fact. Accordingly, there can be no reliance on any such representations and warranties as
characterizations of the actual state of facts. Moreover, information concerning the subject matter of any such
representations and warranties may have changed since the date of such agreements.

ITEM 16.

FORM 10-K SUMMARY

None.

126

    
    
Table of Contents

Pursuant to the requirements of Section 13 or 15(d) 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 10, 2022

MeiraGTx Holdings plc (Registrant)

By:

/s/ Alexandria Forbes
Alexandria Forbes
President and Chief Executive Officer and
Director (Principal Executive Officer)

127

Table of Contents

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the

following persons on behalf of Registrant and in the capacities and on the dates indicated.

Signature

Title

/s/ Alexandria Forbes, Ph.D

President and Chief Executive Officer and Director
(Principal Executive Officer)

Alexandria Forbes, Ph.D

/s/ Richard Giroux

Richard Giroux

Chief Financial Officer
(Principal Financial and Accounting Officer)

Date

March 10, 2022

March 10, 2022

/s/ Keith R. Harris, Ph.D.

Chairman of the Board and Director

March 10, 2022

Keith R. Harris, Ph.D.

/s/ Martin Indyk

Director

Martin Indyk

/s/ Ellen Hukkelhoven

Director

Ellen Hukkelhoven

/s/ Nicole Seligman

Director

Nicole Seligman

/s/ Arnold J. Levine, Ph.D.

Director

Arnold J. Levine, Ph.D.

/s/ Joel S. Marcus

Director

Joel S. Marcus

/s/ Lord Mendoza

Director

Lord Mendoza

/s/ Thomas E. Shenk, Ph.D.

Director

Thomas E. Shenk, Ph.D.

128

March 10, 2022

March 10, 2022

March 10, 2022

March 10, 2022

March 10, 2022

March 10, 2022

March 10, 2022

Certain information marked as [***] has been excluded from this exhibit because it is both (i) not material and (ii) is
the type that the Company treats as private or confidential.

Exhibit 10.26

FIRST AMENDMENT TO

COLLABORATION, OPTION AND LICENSE AGREEMENT

This First Amendment (the “Amendment”) is entered into by and among Janssen Pharmaceuticals, Inc.
(“Janssen”), MeiraGTx UK II Limited and MeiraGTx Holdings plc (MeiraGTx UK II Limited and MeiraGTx
Holdings plc, individually or collectively “MeiraGTx”), effective as of the date of last signature below (the
“First Amendment Effective Date”) and amends that certain Collaboration, Option and License Agreement by
and among Janssen and MeiraGTx, executed as of January 30, 2019 and effective as of February 25, 2019 (the
“Collaboration Agreement”).

WHEREAS, unless otherwise expressly provided for in this Amendment, all capitalized words or phrases or
other defined terms used in this Amendment will have the same meaning ascribed to them in the Collaboration
Agreement.

WHEREAS, except to the extent expressly amended by this Amendment, the Collaboration Agreement remains
in full force and effect.

NOW, THEREFORE, in consideration of the mutual promises and obligations contained herein, the parties,
intending to be legally bound, hereby agree as follows:

1. Amendment.

The table in Section 10.6(a)(i) (“10.6 Development Milestone Payments;” “(a) Clinical IRD Products;” “(i)
RPGR Product”) shall be deleted and replaced in its entirety with the following table:

(i)

RPGR Product

Development Milestone Event 
[***]

Development Milestone Payment (USD) 
[***]

[***]

[***]

[***]

[***]

[***]

[***]

2. Remainder of Agreement. Except as expressly provided in this Amendment, the Collaboration

Agreement shall continue to be in full force and effect in accordance with the terms and conditions
thereof, and is hereby ratified, adopted, approved and

1

confirmed.  From and after the date hereof, each reference to the Collaboration Agreement in any other 
instrument or document shall be deemed a reference to the Collaboration Agreement as amended 
hereby unless the context otherwise requires.

3. Successors and Assigns. This Amendment shall be binding upon the parties hereto and their respective
executors, administrators, legal representatives, heirs, successors and permitted assigns, and shall inure
to the benefit of the parties hereto and, except as otherwise provided herein, their respective executors,
administrators, legal representatives, heirs, successors and permitted assigns.

4. Severability. In case any one or more of the provisions contained in this Amendment or any application
thereof shall be invalid, illegal or unenforceable in any respect, the validity, legality and enforceability
of the remaining provisions contained herein and other application thereof shall not in any way be
affected or impaired thereby.

5. Counterparts. This Amendment may be executed in one or more counterparts, each of which shall be
deemed an original, and all of which taken together shall be deemed to constitute one and the same
single instrument. Signature pages of this Amendment exchanged by facsimile or other electronic
transmission will be deemed to be as effective as an original executed signature page.

6. Governing Law. This Amendment, the rights and obligations of the parties hereto, and any claims or
disputes relating thereto shall be governed by and construed in accordance with the provisions of
Section 18.2 of the Collaboration Agreement and shall apply as if expressly set out in this Amendment.

[Signature Page Follows]

2

IN WITNESS WHEREOF, the undersigned have executed this Amendment effective as of the date of last
signature below.

JANSSEN PHARMACEUTICALS, INC.

MEIRAGTX UK II LIMITED

By:

/s/ Sarah Brennan

Name:

Sarah Brennan

By:

/s/ Rich Giroux

Name: Rich Giroux

Title:

Date:

VP, New Bus. Develop. and Alliance Mgmt.

Title: CFO and COO

December 16, 2021

Date: December 16, 2021

MEIRAGTX HOLDINGS PLC

By:

/s/ Rich Giroux

Name: Rich Giroux

Title:

Date:

CFO and COO

December 16, 2021

3

Exhibit 10.35

MEIRAGTX HOLDINGS PLC
DEFERRED COMPENSATION PLAN FOR NON-EMPLOYEE DIRECTORS

Purpose and Effective Date. The purpose of the Plan is to provide the non-employee members of the Board

1.
of Directors (the “Board”) of MeiraGTx Holdings plc (the “Company”), with an opportunity to defer payment of
all or a portion of their Restricted Share Units. The Plan shall be effective as of December 17, 2021 (the
“Effective Date”).

Definitions. The following terms shall have the meanings given in this section unless a different meaning

2.
is clearly implied by the context:

(a)

“Change in Control” shall have the same meaning as defined in the Equity Plan as in effect on the

Effective Date; provided, that, for purposes of the Plan, in no event will a Change in Control be deemed to have
occurred if the transaction is not also a “change in control event” under Section 409A.

(b)

(c)

(d)

“Code” means the Internal Revenue Code of 1986, as amended.

“Compensation Committee” means the Compensation Committee of the Board.

“Deferred Compensation Account” means an account maintained for each Director who makes a

deferral election as described in Section 4.

(e)

“Deferred Share Unit” means an economic unit equal in value to one Ordinary Share (or fraction

thereof) that is received by a participant pursuant to the Plan and provides for the deferred receipt of
compensation.

(f)

(g)

“Director” means a non-employee member of the Board.

“Equity Plan” means the MeiraGTx Holdings plc 2018 Incentive Award Plan, as it may be

amended or restated from time to time, or, to the extent applicable, any future or successor equity compensation
plan of the Company.

(h)

(i)

(j)
Directors.

(k)

(l)

“Fair Market Value” means “Fair Market Value” as defined in the Equity Plan.

“Ordinary Shares” means the ordinary shares of the Company.

“Plan” means this MeiraGTx Holdings plc Deferred Compensation Plan for Non-Employee

“Plan Administrator” means the Compensation Committee or its designee.

“Plan Year” means a calendar year.

(m)

“Restricted Share Unit” means “Restricted Share Unit” as defined in the Equity Plan and granted
to a Director for serving as a Director, and includes any dividend equivalent rights associated with the Restricted
Share Unit.

(n)

(o)

Section 409A.

“Section 409A” means Section 409A of the Code.

“Separation from Service” means a “separation from service” within the meaning of

Eligibility. All Directors who are not employees of the Company or any subsidiary of the Company shall

3.
be eligible to participate in the Plan.

4.

Election to Defer Restricted Share Units.

(a)

Manner and Amount of Deferral Election. A participant may elect to defer receipt of all or a

specified portion of such participant’s Restricted Share Units by giving written notice on an election form
provided by the Plan Administrator. A participant’s election to defer is irrevocable and may not be changed,
except as may be provided in the election form.

(b)

Time of Election. Elections to defer Restricted Share Units shall be made at the following times:

(i)

A Director may elect to defer Restricted Share Units at such time or times during the

calendar year as permitted by the Plan Administrator. Such election shall be effective, as applicable, for Restricted
Share Units granted in the following calendar year or years.

(ii)

A nominee for election to Director (who is not at the time of nomination a sitting Director
and was not previously eligible to participate in the Plan) may elect to defer Restricted Share Units no later than
30 days after the date of the Director’s commencement of service as a Director. Such deferral election shall be
effective, as applicable, for Restricted Share Units granted following the later of (A) the date of the Director’s
commencement of service as a Director, and (B) the date an irrevocable election form is filed with the Company.

(c)

Duration of Deferral Election. Unless otherwise permitted by the Plan Administrator and specified

in an applicable election form, a deferral election will only apply to one Plan Year and a participant must make a
new deferral election with respect to each Plan Year that the participant decides to defer Restricted Share Units.
Notwithstanding the foregoing, the Plan Administrator may provide, pursuant to the terms of an approved election
form, that such deferral election shall carry forward from year-to-year and continue to apply to Restricted Share
Units granted in subsequent years until the participant makes a new deferral election with respect to a Plan Year.

Deferred Compensation Accounts. The Company shall establish on its books and records a Deferred

5.
Compensation Account for each participant, as provided below.

(a)

Crediting of Restricted Share Units. Deferred Restricted Share Units shall be credited to the
participant’s Deferred Compensation Account in an equal amount of Deferred Share Units on the date the
Restricted Share Units would otherwise have been granted. The Deferred Share Units related to such deferred
Restricted Share Units shall be subject to the same vesting or other forfeiture restrictions that would have
otherwise applied to such Restricted Share Units. In the event the participant forfeits Deferred Share Units in
accordance with the foregoing, the participant’s Deferred Compensation Account shall be debited for the number
of Deferred Share Units forfeited.

(b)

Dividend Equivalents. Each Deferred Share Unit credited to a participant’s Deferred Compensation

Account shall carry with it a right to receive dividend equivalents in respect of the Ordinary Share underlying
such Deferred Share Unit. As of a dividend payment date, a participant’s Deferred Compensation Account will be
credited with that number of additional Deferred Share Units (“Additional Deferred Share Units”) equal to the
amount of any ordinary cash dividend paid by the Company on the number of Ordinary Shares equivalent to the
number of Deferred Share Units in the Deferred Compensation Account as of the record date for the dividend,
divided by the Fair Market Value

2

of one Ordinary Share on the dividend payment date. An Additional Deferred Share Unit will be subject to the
same vesting or other forfeiture restrictions that apply to the corresponding Deferred Share Unit. The dividend
equivalent right associated with a Deferred Share Unit shall remain outstanding until, and any Additional Deferred
Share Unit will be delivered at the same time as, the delivery to the participant of the Ordinary Share underlying,
or cash settlement of, the corresponding Deferred Share Unit. If a Deferred Share Unit is forfeited, any
corresponding Additional Deferred Share Unit will also be forfeited and the applicable Deferred Compensation
Account will be debited for the Additional Deferred Share Units forfeited.

(c)

Adjustment of Deferred Share Units. If the number of outstanding Ordinary Shares is increased or
decreased or the Ordinary Shares are changed into or exchanged for a different number or kind of shares or other
securities of the Company on account of any recapitalization, reclassification, share split, reverse split,
combination of shares, exchange of shares, share dividend, or other distribution payable in capital shares, or other
increase or decrease in such shares effected without receipt of consideration by the Company occurring after the
Effective Date, the Plan Administrator will make appropriate adjustments to (i) the number and kind of securities
for which Deferred Share Units are outstanding, and (ii) the number of Deferred Share Units credited to each
participant’s Deferred Compensation Account.

6.

Payment of Deferred Compensation.

(a)

Distributions. Payment from the Deferred Compensation Account of Deferred Share Units

corresponding to a participant’s deferral election for a given Plan Year shall be made in one lump sum on (or
during) the earliest to occur of:

(i)

(ii)

the 90 days following the participant’s Separation from Service;

immediately prior to, on or within 30 days following a Change in Control, provided that the
participant’s Separation from Service has not occurred prior to the Change in Control; or

(iii)

the participant’s death.

Notwithstanding anything to the contrary in the Plan, if, on the date of the participant’s Separation from

Service, the participant is a “specified employee” within the meaning of Section 409A, the payment will occur on
the later to occur of (x) the scheduled distribution date and (y) the first day of the seventh month following the
date of the participant’s Separation from Service or, if earlier, the date of the participant’s death.

(b)

Medium of Payment. Payments from the Deferred Compensation Account shall be made in whole
shares for each whole Deferred Share Unit, and in cash for any fractional Deferred Share Unit; provided, that, the
Compensation Committee may choose in its discretion to pay the participant cash in lieu of all or a portion of the
Ordinary Shares. If a Deferred Share Unit (including a fraction thereof) is paid in cash, the amount of cash paid
with respect to the Deferred Share Unit (or fraction thereof) will equal the Fair Market Value of an Ordinary Share
(or fraction thereof) on the day immediately preceding the payment date.

Unfunded Promise to Pay; No Segregation of Funds or Assets. Nothing in the Plan shall require the

7.
segregation of any assets of the Company or any type of funding by the Company, it being the intention of the
parties that the Plan be an unfunded arrangement for federal income tax purposes. No participant shall have any
rights to or interest in any specific assets or Ordinary Shares by reason of the

3

Plan, and any participant’s rights to enforce payment of the obligations of the Company hereunder shall be those
of a general creditor of the Company.

Non-assignability; Beneficiary Designation. The right of a participant to receive any unpaid portion of the

8.
participant’s Deferred Compensation Account shall not be assigned, transferred, pledged or encumbered or
subjected in any manner to alienation or anticipation. However, in the event of a participant’s death, the Company
will pay the unpaid portion of the participant’s Deferred Compensation Account to the participant’s designated
beneficiaries. If the participant fails to complete a valid beneficiary designation, the participant’s beneficiary will
be the participant’s estate.

Administration. The Plan will be administered under the supervision of the Plan Administrator. The Plan

9.
Administrator will prescribe guidelines and forms for the implementation and administration of the Plan, interpret
the terms of the Plan, and make all other substantive decisions regarding the operation of the Plan. The Plan
Administrator’s decisions in its administration of the Plan are conclusive and binding on all persons.

Construction. The laws of the Cayman Islands shall govern all questions of law arising with respect to the

10.
Plan, disregarding any choice-of-law principles requiring the application of a jurisdiction’s laws other than the
Cayman Islands. The Plan is intended to be construed so that participation in the Plan will be exempt from
Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to regulations and interpretations
issued from time to time by the Securities and Exchange Commission. If any provision of the Plan is held to be
illegal or void, such illegality or invalidity shall not affect the remaining provisions of the Plan, but shall be fully
severable, and the Plan shall be construed and enforced as if the illegal or invalid provision had never been
inserted. This document constitutes the entire Plan, and supersedes any prior oral or written agreements on the
subject matter hereof.

Section 409A; Changes in Tax Law. The Plan is intended to comply with Section 409A and any

11.
regulations and guidance thereunder such that no adverse tax consequences or penalties under Section 409A apply
and shall be interpreted and operated in accordance with such intent. Neither the Company, its affiliates, the
Board, nor the Compensation Committee (a) makes any representation or warranty with respect to the tax
treatment of the Plan or benefits provided under the Plan, (b) will have any obligation to take any action to
prevent the assessment of any excise tax or penalty on any participant under the Code, or (c) will have any
liability to any participant or other person or entity for such tax or penalty or for any early, retroactive or
additional tax or penalty under any provision of the Code enacted or revised after the Effective Date.
Notwithstanding any provision of the Plan to the contrary, if the Plan Administrator determines that any amounts
payable under the Plan will have adverse tax consequences to any participant under any provision of the Code that
is enacted or revised after the Effective Date and changes the tax treatment of the benefits provided by the Plan,
the Plan Administrator may (without any obligation to do so or to indemnify any participant for failure to do so),
without any participant’s consent, adopt such amendments to the Plan or take such other actions that the Plan
Administrator determines to be necessary or appropriate to preserve the intended tax treatment of the benefits
provided by the Plan, to preserve the economic benefits of the Plan or benefits provided under the Plan or to avoid
less favorable tax consequences for any participant or the Company, in each case, to the extent the Plan
Administrator reasonably determines is permitted under then-applicable law. The nature and implementation of
any such amendments or other actions will be determined unilaterally by the Plan Administrator in its discretion.

Claw-back. All awards of Deferred Share Units under the Plan will be subject to mandatory repayment by
12.
the participant to the Company to the extent the participant is, or in the future becomes, subject to any Company
or affiliate “claw-back” or recoupment policy that is adopted to comply with the requirements of any applicable
law, rule, regulation or otherwise, or any law, rule, or regulation that imposes mandatory recoupment, under
circumstances set forth in such law, rule or regulation.

4

Amendment and Termination. The Board may amend, suspend, or terminate the Plan at any time and for

13.
any reason. No amendment, suspension, or termination will, without the consent of the participant, materially
impair rights or obligations under any Deferred Share Units previously awarded to the participant under the Plan,
except as provided below. The Board may terminate the Plan and distribute the Deferred Compensation Accounts
to participants in accordance with and subject to the rules of Treas. Reg. Section 1.409A-3(j)(4)(ix), or successor
provisions, and any generally applicable guidance issued by the Internal Revenue Service permitting such
termination and distribution.

Incorporation of Equity Plan. The Plan is established under and subject to the terms of the Equity Plan.

14.
Deferred Share Units issued to, and Ordinary Shares paid to, participants under the Plan shall be issued and paid
from the Equity Plan and subject to its terms. Notwithstanding the foregoing, if there is a conflict between the
terms of the Plan and the Equity Plan, the terms of the Plan will control.

* * * * *

5

MEIRAGTX HOLDINGS PLC
2018 INCENTIVE AWARD PLAN

RESTRICTED SHARE UNIT GRANT NOTICE

Exhibit 10.36

Capitalized terms not specifically defined in this Restricted Share Unit Grant Notice (the “Grant Notice”) have the
meanings  given  to  them  in  the  2018  Incentive  Award  Plan  (as  amended  from  time  to  time,  the  “Plan”)  of  MeiraGTx
Holdings plc (the “Company”).

The Company has granted to the participant listed below (“Participant”) the Restricted Share Units described in this
Grant  Notice  (the  “RSUs”),  subject  to  the  terms  and  conditions  of  the  Plan  and  the  Restricted  Share  Unit  Agreement
attached as Exhibit A (the “Agreement”), both of which are incorporated into this Grant Notice by reference.

Participant:

Grant Date:

Number of RSUs:

Vesting Schedule:

Subject to the terms of the Agreement, the RSUs will vest in a single
installment on the earliest to occur of (i) the first anniversary of the Grant
Date, (ii) the day immediately prior to the date of the next annual meeting
of the Company’s shareholders occurring after the Grant Date and (iii)
the occurrence of a Change in Control.

By Participant’s signature below, Participant agrees to be bound by the terms of this Grant Notice, the Plan and the
Agreement. Participant has reviewed the Plan, this Grant Notice and the Agreement in their entirety, has had an opportunity
to  obtain  the  advice  of  counsel  prior  to  executing  this  Grant  Notice  and  fully  understands  all  provisions  of  the  Plan,  this
Grant  Notice  and  the  Agreement.  Participant  hereby  agrees  to  accept  as  binding,  conclusive  and  final  all  decisions  or
interpretations of the Administrator upon any questions arising under the Plan, this Grant Notice or the Agreement.

MEIRAGTX HOLDINGS PLC

PARTICIPANT

By:
Name:
Title:

[Participant Name]

RESTRICTED SHARE UNIT AGREEMENT

Exhibit A

Capitalized terms not specifically defined in this Agreement have the meanings specified in the Grant Notice or the
Plan or, if not defined therein, in the MeiraGTx Holdings plc Deferred Compensation Plan for Non-Employee Directors (the
“Deferred Compensation Plan”).

1.1

Award of RSUs and Dividend Equivalents.

ARTICLE I.
 GENERAL

(a)

The  Company  has  granted  the  RSUs  to  Participant  effective  as  of  the  grant  date  set  forth  in  the
Grant Notice (the “Grant Date”). Each RSU represents the right to receive one Share or, at the option of the Company, an
amount of cash, in either case, as set forth in this Agreement. Participant will have no right to the distribution of any Shares
or payment of any cash until the time (if ever) the RSUs have vested.

(b)

The  Company  hereby  grants  to  Participant,  with  respect  to  each  RSU,  a  Dividend  Equivalent  for
ordinary cash dividends paid to substantially all holders of outstanding Shares with a record date after the Grant Date and
prior to the date the applicable RSU is settled, forfeited or otherwise expires. Each Dividend Equivalent entitles Participant
to receive the equivalent value of any such ordinary cash dividends paid on a single Share. The Company will establish a
separate Dividend Equivalent bookkeeping account (a “Dividend Equivalent Account”) for each Dividend Equivalent and
credit the Dividend Equivalent Account (without interest) on the applicable dividend payment date with the amount of any
such cash paid.

1.2

Deferral Election. Notwithstanding Section 1.1 or any other provision of this Agreement, the Grant Notice
or  the  Plan,  if  Participant  has  previously  made  a  valid  election  to  defer  receipt  of  all  or  any  portion  of  this  Award  in
accordance with the terms of the Deferred Compensation Plan, the Company will not issue the RSUs to Participant as set
forth in this Agreement and the Grant Notice and will instead credit to Participant’s Deferred Compensation Account on the
Grant Date an equal amount of Deferred Stock Units. The Deferred Stock Units related to this Award will be subject to all of
the terms and conditions of the Deferred Compensation Plan and paid at the times set forth in the Deferred Compensation
Plan and the Participant’s applicable deferral election thereunder.

1.3

Incorporation  of  Terms  of  Plan.  The  RSUs  are  subject  to  the  terms  and  conditions  set  forth  in  this
Agreement and the Plan, which is incorporated herein by reference. In the event of any inconsistency between the Plan and
this Agreement, the terms of the Plan will control.

1.4

Unsecured Promise. The RSUs and Dividend Equivalents will at all times prior to settlement represent an

unsecured Company obligation payable only from the Company’s general assets.

ARTICLE II.
 VESTING; FORFEITURE AND SETTLEMENT

2.1

Vesting; Forfeiture. The RSUs will vest according to the vesting schedule in the Grant Notice. In the event
of Participant’s Termination of Service as a non-employee Director for any reason, all unvested RSUs will immediately and
automatically  be  cancelled  and  forfeited,  except  as  otherwise  determined  by  the  Administrator  or  provided  in  a  binding
written agreement between Participant and the Company. Dividend Equivalents (including any Dividend Equivalent Account
balance) will vest or be

forfeited, as applicable, upon the vesting or forfeiture of the RSU with respect to which the Dividend Equivalent (including
the Dividend Equivalent Account) relates.

2.2

Settlement.

(a)

Subject  to  Section  1.2,  RSUs  and  Dividend  Equivalents  (including  any  Dividend  Equivalent
Account balance) will be paid in Shares or cash at the Company’s option as soon as administratively practicable after the
vesting of the applicable RSU, but in no event more than sixty (60) days after the RSU’s vesting date.

(b)

Notwithstanding the foregoing, the Company may delay any payment under this Agreement that the
Company reasonably determines would violate Applicable Law until the earliest date the Company reasonably determines
the making of the payment will not cause such a violation (in accordance with Treasury Regulation Section 1.409A-2(b)(7)
(ii)), provided the delay will not result in the imposition of excise taxes under Section 409A.

(c)

If  an  RSU  is  paid  in  cash,  the  amount  of  cash  paid  with  respect  to  the  RSU  will  equal  the  Fair
Market Value of a Share on the day immediately preceding the payment date. If a Dividend Equivalent is paid in Shares, the
number of Shares paid with respect to the Dividend Equivalent will equal the quotient, rounded down to the nearest whole
Share,  of  the  Dividend  Equivalent  Account  balance  divided  by  the  Fair  Market  Value  of  a  Share  on  the  day  immediately
preceding the payment date.

ARTICLE III.
 TAXATION AND TAX WITHHOLDING

3.1

Representation. Participant represents to the Company that Participant has reviewed with Participant’s own
tax advisors the tax consequences of this Award and the transactions contemplated by the Grant Notice and this Agreement.
Participant  is  relying  solely  on  such  advisors  and  not  on  any  statements  or  representations  of  the  Company  or  any  of  its
agents.

3.2

Taxes.  Participant  acknowledges  that  Participant  is  ultimately  liable  and  responsible  for  all  taxes  owed  in
connection with the RSUs and the Dividend Equivalents, regardless of any action the Company or any Subsidiary takes with
respect  to  any  tax  withholding  obligations  that  arise  in  connection  with  the  RSUs  or  Dividend  Equivalents.  Neither  the
Company  nor  any  Subsidiary  makes  any  representation  or  undertaking  regarding  the  treatment  of  any  tax  withholding  in
connection with the awarding, vesting or payment of the RSUs or the Dividend Equivalents or the subsequent sale of Shares.
The  Company  and  the  Subsidiaries  do  not  commit  and  are  under  no  obligation  to  structure  the  RSUs  or  Dividend
Equivalents to reduce or eliminate Participant’s tax liability.

ARTICLE IV.
 OTHER PROVISIONS

4.1

Adjustments.  Participant  acknowledges  that  the  RSUs,  the  Shares  subject  to  the  RSUs  and  the  Dividend
Equivalents are subject to adjustment, modification and termination in certain events as provided in this Agreement and the
Plan.

4.2

Notices. Any notice to be given under the terms of this Agreement to the Company must be in writing and
addressed  to  the  Company  in  care  of  the  Company’s  Secretary  at  the  Company’s  principal  office  or  the  Secretary’s  then-
current email address or facsimile number. Any notice to be given under the terms of this Agreement to Participant must be
in writing and addressed to Participant at Participant’s last known mailing address, email address or facsimile number in the
Company’s personnel files. By a notice

A-2

given pursuant to this Section, either party may designate a different address for notices to be given to that party. Any notice
will be deemed duly given when actually received, when sent by email, when sent by certified mail (return receipt requested)
and deposited with postage prepaid in a post office or branch post office regularly maintained by the United States Postal
Service, when delivered by a nationally recognized express shipping company or upon receipt of a facsimile transmission
confirmation.

4.3

Titles. Titles are provided herein for convenience only and are not to serve as a basis for interpretation or

construction of this Agreement.

4.4

Conformity to Securities Laws. Participant acknowledges that the Plan, the Grant Notice and this Agreement
are intended to conform to the extent necessary with all Applicable Laws and, to the extent Applicable Laws permit, will be
deemed amended as necessary to conform to Applicable Laws.

4.5

Successors  and  Assigns.  The  Company  may  assign  any  of  its  rights  under  this  Agreement  to  single  or
multiple assignees, and this Agreement will inure to the benefit of the successors and assigns of the Company. Subject to the
restrictions  on  transfer  set  forth  in  the  Plan,  this  Agreement  will  be  binding  upon  and  inure  to  the  benefit  of  the  heirs,
legatees, legal representatives, successors and assigns of the parties hereto.

4.6

Limitations  Applicable  to  Section  16  Persons.  Notwithstanding  any  other  provision  of  the  Plan  or  this
Agreement, if Participant is subject to Section 16 of the Exchange Act, the Plan, the Grant Notice, this Agreement, the RSUs
and the Dividend Equivalents will be subject to any additional limitations set forth in any applicable exemptive rule under
Section 16 of the Exchange Act (including any amendment to Rule 16b-3) that are requirements for the application of such
exemptive rule. To the extent Applicable Laws permit, this Agreement will be deemed amended as necessary to conform to
such applicable exemptive rule.

4.7

Entire Agreement. The Plan, the Grant Notice and this Agreement (including any exhibit hereto) constitute
the entire agreement of the parties and supersede in their entirety all prior undertakings and agreements of the Company and
Participant with respect to the subject matter hereof.

4.8

Agreement Severable. In the event that any provision of the Grant Notice or this Agreement is held illegal or
invalid, the provision will be severable from, and the illegality or invalidity of the provision will not be construed to have
any effect on, the remaining provisions of the Grant Notice or this Agreement.

4.9

Limitation on Participant’s Rights. Participation in the Plan confers no rights or interests other than as herein
provided. This Agreement creates only a contractual obligation on the part of the Company as to amounts payable and may
not be construed as creating a trust. Neither the Plan nor any underlying program, in and of itself, has any assets. Participant
will  have  only  the  rights  of  a  general  unsecured  creditor  of  the  Company  with  respect  to  amounts  credited  and  benefits
payable, if any, with respect to the RSUs and Dividend Equivalents, and rights no greater than the right to receive cash or the
Shares as a general unsecured creditor with respect to the RSUs and Dividend Equivalents, as and when settled pursuant to
the terms of this Agreement.

4.10

Not  a  Contract  of  Employment.  Nothing  in  the  Plan,  the  Grant  Notice  or  this  Agreement  confers  upon
Participant any right to continue in the employ or service of the Company or any Subsidiary or interferes with or restricts in
any  way  the  rights  of  the  Company  and  its  Subsidiaries,  which  rights  are  hereby  expressly  reserved,  to  discharge  or
terminate  the  services  of  Participant  at  any  time  for  any  reason  whatsoever,  with  or  without  Cause,  except  to  the  extent
expressly provided otherwise in a written agreement between the Company or a Subsidiary and Participant.

A-3

4.11

Counterparts.  The  Grant  Notice  may  be  executed  in  one  or  more  counterparts,  including  by  way  of  any
electronic  signature,  subject  to  Applicable  Law,  each  of  which  will  be  deemed  an  original  and  all  of  which  together  will
constitute one instrument.

4.12

Electronic  Delivery  and  Acceptance.  The  Company  may,  in  its  sole  discretion,  decide  to  deliver  any
documents related to current or future participation in the Plan by electronic means. Participant hereby consents to receive
such  documents  by  electronic  delivery  and  agrees  to  participate  in  the  Plan  through  an  on-line  or  electronic  systems
established and maintained by the Company or a third party designated by the Company.

4.13

Deemed Acceptance. Participant is required to accept the terms and conditions set forth in this Agreement
prior to the first vesting date in order for Participant to receive the RSUs granted hereunder. If Participant wishes to decline
the RSUs, Participant must reject this Agreement prior to the first vesting date. For Participant’s benefit, if Participant has
not  rejected  the  Agreement  prior  to  the  first  vesting  date,  Participant  will  be  deemed  to  have  automatically  accepted  the
RSUs and all the terms and conditions set forth in this Agreement. Deemed acceptance will allow the Shares to be released
to Participant in a timely manner and once released, Participant waives any right to assert that Participant has not accepted
the terms hereof.

* * * * *

A-4

Legal Name of Subsidiary
BRI-Alzan, Inc.
MeiraGTx B.V.
MeiraGTx Netherlands B.V.
MeiraGTx Limited
MeiraGTx, LLC
MeiraGTx UK Limited
MeiraGTx UK II Limited
MeiraGTx Ireland DAC
MeiraGTx Neurosciences, Inc.
MeiraGTx Bio Inc.
MeiraGTx Belgium
MeiraGTx Therapeutics, Inc.

SUBSIDIARIES OF MEIRAGTX HOLDINGS PLC

     Jurisdiction of Organization

Exhibit 21

Delaware
Netherlands
Netherlands
England and Wales
Delaware
England and Wales
England and Wales
Ireland
Delaware
Delaware
Belgium
Delaware

EXHIBIT 23.1

We consent to the incorporation by reference in the following Registration Statements:

Consent of Independent Registered Public Accounting Firm

(1) Registration Statement (Form S-8 No. 333-225535) pertaining to the 2016 Equity Incentive Plan, 2018 Incentive Award Plan and

2018 Employee Share Purchase Plan of MeiraGTx Holdings plc,

(2) Registration Statement (Form S-3 No. 333-232527) of MeiraGTx Holdings plc,

(3) Registration Statement (Form S-3 No. 333-232677) of MeiraGTx Holdings plc, and

(4) Registration Statement (Form S-8 No. 333-257164) pertaining to the 2018 Incentive Award Plan and 2018 Employee Share

Purchase Plan of MeiraGTx Holdings plc;

of our report dated March 10, 2022, with respect to the consolidated financial statements of MeiraGTx Holdings plc included in this
Annual Report (Form 10-K) of MeiraGTx Holdings plc for the year ended December 31, 2021.

/s/ Ernst & Young LLP

Jericho, New York
March 10, 2022

CERTIFICATION

Exhibit 31.1

I, Alexandria Forbes, certify that:

1.

I have reviewed this Annual Report on Form 10-K for the fiscal year ended December 31, 2021 of MeiraGTx Holdings plc;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary
to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to
the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all

material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in
this report;

4. The registrant’s other certifying officer 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) 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;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed
under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of
financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the 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

(d) 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 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) 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

(b) 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.

Date: March 10, 2022

By:

/s/ Alexandria Forbes
Alexandria Forbes
President and Chief Executive Officer
(Principal Executive Officer)

 
      
      
 
 
 
 
 
 
Exhibit 31.2

I, Richard Giroux, certify that:

CERTIFICATION

1.    I have reviewed this Annual Report on Form 10-K for the fiscal year ended December 31, 2021 of MeiraGTx Holdings plc;

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary
to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to
the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all

material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in
this report;

4.    The registrant’s other certifying officer 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)  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;

(b)  Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed
under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of
financial statements for external purposes in accordance with generally accepted accounting principles;

(c)  Evaluated the effectiveness of the 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

(d)  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 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)  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

(b)  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.

Date: March 10, 2022

By:

/s/ Richard Giroux
Richard Giroux
Chief Financial Officer and Chief Operating Officer
(Principal Financial Officer)

 
      
      
 
 
 
 
 
 
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32.1

In connection with the Annual Report on Form 10-K of MeiraGTx Holdings plc (the “Company”) for the year ended December 31,
2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, pursuant to 18 U.S.C. § 1350, as
adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1)  The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)  The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations

of the Company.

Date: March 10, 2022

By:

/s/ Alexandria Forbes
Alexandria Forbes
President and Chief Executive Officer
(Principal Executive Officer)

 
      
      
 
 
 
 
 
 
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32.2

In connection with the Annual Report on Form 10-K of MeiraGTx Holdings plc (the “Company”) for the year ended December 31,
2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, pursuant to 18 U.S.C. § 1350, as
adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1)  The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)  The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations

of the Company.

Date: March 10, 2022

By:

/s/ Richard Giroux
Richard Giroux
Chief Financial Officer and Chief Operating Officer
(Principal Financial Officer)