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VistaGen Therapeutics Inc

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FY2019 Annual Report · VistaGen Therapeutics Inc
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Form 10-K

For the fiscal year ended: March 31, 2019

or

Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

☒

☐

Commission file number: 001-37761

VistaGen Therapeutics, Inc.

(Exact name of registrant as specified in its charter)

Nevada
(State or other jurisdiction of
incorporation or organization)

20-5093315
(I.R.S. Employer
Identification No.)

343 Allerton Avenue
South San Francisco, California 94080
(650) 577-3600
(Address, including zip code, and telephone number, including area code, of registrant’s principal executive office)

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

Title of each class
Common Stock, par value $0.001 per share

Name of each exchange on which registered
The Nasdaq Capital Market

Securities registered pursuant to Section 12(g) of the Act

None

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

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

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding
12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes   ☒
    No   ☐

Indicate  by  check  mark  whether  the  registrant  has  submitted  electronically  every  Interactive  Data  File  required  to  be  submitted  pursuant  to  Rule  405  of  Regulation  S-T
(§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes   ☒     No   ☐

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s
knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.   ☒

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

Large accelerated filer   ☐   Accelerated filer    ☐

  Non-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 is a shell company (as defined in Rule 12b-2 of the Act).    Yes   ☐     No   ☒

The aggregate market value of the common stock of the registrant held by non-affiliates of the registrant on September 30, 2018, the last business day of the registrant’s second
fiscal quarter, was: $41,111,438.

As of June 24, 2019, there were 42,622,965 shares of the registrant’s common stock, $0.001 par value per share, outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Items 10, 11, 12, 13 and 14 of Part III incorporate by reference certain information from VistaGen Therapeutics, Inc.’s definitive proxy statement, to be filed with the Securities
and Exchange Commission on or before July 29, 2019.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
Table of Contents

Item No.

PART I  

1.
1A.
1B.
2.
3.
4.
PART II  
5.
6.
7.
7A.
8.
9.
9A.
9B.

PART III  

TABLE OF CONTENTS

Business
Risk Factors
Unresolved Staff Comments
Properties
Legal Proceedings
Mine Safety Disclosures

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
Selected Financial Data
Management’s Discussion and Analysis of Financial Condition and Results of Operations
Quantitative and Qualitative Disclosures About Market Risk
Financial Statements and Supplementary Data
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
Controls and Procedures
Other Information

10.
11.
12.
13.
14.

Directors, Executive Officers and Corporate Governance
Executive Compensation
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Certain Relationships and Related Transactions, and Director Independence
Principal Accounting Fees and Services

PART IV  

15.

Exhibits and Financial Statement Schedules

EXHIBIT INDEX
SIGNATURES

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Page No.

1
30
66
66
66
66

67
67
68
79
80
114
114
114

115
115
115
115
115

116
117
120

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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Forward-Looking Statements

This Annual  Report  on  Form  10-K  (Annual  Report)  contains  forward-looking  statements  that  involve  substantial  risks  and  uncertainties. All  statements  contained  in  this
Annual Report other than statements of historical facts, including statements regarding our strategy, future operations, future financial position, future revenue, projected costs,
prospects, plans, objectives of management and expected market growth, 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.

The words “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “plan,” “predict,” “project,” “target,” “potential,” “will,” “would,” “could,” “should,” “continue,” and
similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. These forward-looking
statements include, among other things, statements about:

●

●

●

●

●

●

●

●

●

●

●

●

the  availability  of  capital  to  satisfy  our  working  capital  requirements  and  clinical  and  non-clinical  development
objectives;

the  accuracy  of  our  estimates  regarding  expenses,  future  revenues  and  capital
requirements;

our plans to develop and commercialize our product candidates, including, among other things, AV-101, initially as an add-on treatment for Major Depressive Disorder
(MDD), and subsequently as a treatment for additional diseases and disorders involving the Central Nervous System (CNS), PH94B as a treatment for Social Anxiety
Disorder (SAD) and PH10 as a treatment for MDD;

our ability to initiate and complete necessary preclinical and clinical trials, to advance  our  product  candidates  into  additional  preclinical  and  clinical  trials,  including
pivotal clinical trials, to successfully complete any such preclinical and clinical trials, and for those trials to generate positive results;

economic,  regulatory  and  political  developments  in  the  U.S.  and  foreign
countries;

the  performance  of  the  Department  of  Veterans  Affairs  (VA),  Baylor  University,  our  third-party  contract  manufacturer(s)  (CMOs),  contract  research  organizations
(CROs) and other third-party preclinical and clinical drug development collaborators and regulatory service providers;

our  ability  to  obtain  and  maintain  intellectual  property  (IP)  protection  for  our  core  assets,  including  our  product
candidates;

the  size  of  the  potential  markets  for  our  product  candidates  and  our  ability  to  enter  and  serve  those
markets;

the  rate  and  degree  of  market  acceptance  of  our  product  candidates  for  any  indication  once
approved;

the success of competing products and product candidates in development by others that are or become available for the indications that we are pursuing in the markets
we seek to enter on our own or with collaborators;

the loss of key scientific, clinical or nonclinical development, regulatory, and/or management personnel, internally or from one or more of our third-party collaborators;
and

other  risks  and  uncertainties,  including  those  listed  under  Part  I,  Item  1A  of  this  Annual  Report  titled  “Risk
Factors.”

These forward-looking statements are only predictions and we may not actually achieve the plans, intentions or expectations disclosed in our forward-looking statements, so
you should not place undue reliance on our forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in
the forward-looking statements we make. We have based these forward-looking statements largely on our current expectations and projections about future events and trends
that  we  believe  may  affect  our  business,  financial  condition  and  operating  results.  We  have  included  important  factors  in  the  cautionary  statements  included  in  this Annual
Report, particularly in Part I, Item 1A, titled “Risk Factors,” that could cause actual future results or events to differ materially from the forward-looking statements that we
make. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures or investments we may make.

You  should  read  this Annual  Report  and  the  documents  that  we  have  filed  as  exhibits  to  the Annual  Report  with  the  understanding  that  our  actual  future  results  may  be
materially different from what we expect. We do not assume any obligation to update any forward-looking statements, whether as a result of new information, future events or
otherwise, except as required by applicable law. 

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PART I

All brand names or trademarks appearing in this Annual Report are the property of their respective holders. Unless the context requires otherwise, references in this report to
“VistaGen,” the “Company,” “we,” “us,” and “our” refer to VistaGen Therapeutics, Inc., a Nevada corporation. All references to future quarters and years in this Annual
Report refer to calendar quarters and calendar years, unless reference is made otherwise.

Item 1.

Business

Overview

We  are  a  clinical-stage  biopharmaceutical  company  committed  to  developing  and  commercializing  new  generation  medicines  to  treat  diseases  and  disorders  of  the  central
nervous system (CNS)  with  high  unmet  need.  Our  portfolio  of  three  clinical-stage  product  candidates  is  currently  focused  on  major  depressive  disorder  (MDD),  neuropathic
pain (NP), levodopa-induced dyskinesia (LID), social anxiety disorder (SAD) and suicidal ideation (SI).

Our most advanced product candidate, PH94B neuroactive nasal spray, is fundamentally different from all current treatments for SAD. Developed from proprietary compounds
called pherines and administered as a nasal spray, PH94B activates nasal chemosensory receptors that trigger neural circuits in the brain that suppress fear and anxiety. In a
published, peer-reviewed, double-blind, placebo-controlled Phase 2 clinical trial undertaken in a laboratory setting mimicking public speaking and social interaction challenges,
PH94B neuroactive nasal spray was significantly more effective than placebo in reducing behavior related to social anxiety in individuals with SAD. Its novel mechanism of
pharmacological  action,  rapid-onset  of  therapeutic  effects  and  exceptional  safety  and  tolerability  profile  in  clinical  trials  to  date  make  PH94B  neuroactive  nasal  spray  an
excellent product candidate with potential to become the first FDA-approved on-demand treatment for SAD. Additional potential indications for PH94B include post-traumatic
stress disorder (PTSD) and general anxiety disorder (GAD), as well as other neuropsychiatric indications.

AV-101 (4-Cl-KYN), one of our two product candidates initially focused on MDD, belongs to a new generation of investigational medicines in neuropsychiatry and neurology
known as NMDA (N-methyl-D-aspartate) glutamate receptor modulators. The NMDA receptor is a pivotal receptor in the brain and abnormal NMDA function is associated
with multiple CNS diseases and disorders, including MDD, epilepsy, LID, NP and many others. AV-101 is an oral prodrug of   7-chlorokynurenic  acid  (7-Cl-KYNA), which
binds uniquely at the glycine site of the NMDA receptor and has potential to be a new at-home treatment for MDD and other CNS indications with high unmet need. AV-101 is
currently in Phase 2 development in the U.S. for MDD. ELEVATE is our Phase 2 multicenter, double blind, placebo-controlled clinical study to evaluate the efficacy and safety
of AV-101  as  an  add-on  treatment  for  MDD  in  adult  patients  with  an  inadequate  therapeutic  response  to  current  FDA-approved  oral  antidepressants  ( ADs)  (the ELEVATE
Study). Dr. Maurizio Fava, Professor of Psychiatry at Harvard Medical School and Director, Division of Clinical Research, Massachusetts General Hospital (MGH) Research
Institute, is the Principal Investigator of the ELEVATE Study, assisting our internal team, which is led by Mark Smith, MD, PhD, our Chief Medical Officer. Dr. Fava was the
co-Principal Investigator with Dr. A. John Rush of the STAR*D study, the largest clinical trial conducted in depression to date, whose findings were published in journals such
as the New England Journal of Medicine (NEJM) and the Journal of the American Medical Association (JAMA). We currently anticipate top line results from the ELEVATE
Study in the second half of 2019. In addition to MDD, we believe preclinical data and positive safety data in all clinical studies to date support AV-101’s potential to treat LID,
NP and SI, The FDA has granted Fast Track designation for development of AV-101 both as a potential add-on treatment of MDD and as a non-opioid treatment for NP.

Our other product candidate in Phase 2 development and initially focused on MDD is PH10 neuroactive nasal spray. PH10 is a potential first-in-class, CNS neurosteroid nasal
spray  administered  in  microgram  doses  for  front-line  treatment  of  MDD.  PH10  nasal  spray  activates  nasal  chemosensory  receptors  that,  in  turn,  engage  GABA  (gamma-
aminobutyric acid) and CRH (corticotropin-releasing hormone) neurons in the limbic amygdala system. The activation of these neural circuits is believed to have the potential to
lead to rapid antidepressant effects without psychological side effects, systemic exposure or safety concerns often associated with current antidepressants. Based on positive
results from a small exploratory Phase 2a study in MDD in which rapid-onset antidepressant effects were observed without psychological side effects or systemic exposure, we
are planning for Phase 2b clinical development of PH10 as a first-line treatment for MDD in the second half of 2020.

In addition to our CNS business, we have two pipeline-enabling programs through our wholly-owned subsidiary, VistaStem Therapeutics ( VistaStem). VistaStem is focused on
applying pluripotent stem cell (hPSC)  technology  to  discover,  rescue,  develop  and  commercialize  proprietary  new  chemical  entities  (NCEs)  for  CNS  and  other  diseases  and
regenerative  medicine  (RM)  involving  hPSC-derived  blood,  cartilage,  heart  and  liver  cells.  Our  internal  drug  rescue  programs  are  designed  to  utilize CardioSafe  3D,  our
customized stem cell technology-based cardiac bioassay system, to discover and develop small molecule NCEs for our CNS pipeline or for out-licensing. To advance potential
RM applications of our cardiac stem cell technology, we have sublicensed to BlueRock Therapeutics LP, a next generation cell therapy and RM company established by Bayer
AG and Versant Ventures ( BlueRock Therapeutics), rights to certain proprietary technologies relating to the production of cardiac stem cells for the treatment of heart disease
(the BlueRock Agreement). In a manner similar to the BlueRock Agreement, we may pursue additional collaborations or licensing transactions involving blood, cartilage, and/or
liver cells derived from hPSCs for cell-based therapy, cell repair therapy, RM and/or tissue engineering.

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Table of Contents

Our goal is to be a leading biopharmaceutical company committed to development and commercialization of novel proprietary therapies for the treatment of CNS diseases and
disorders with high unmet need. Our current focus is on building our opportunities in neuropsychiatry, with emphasis on MDD, SAD and SI, and in neurology, with emphasis
on LID and NP. Key elements of our strategy are to:

Our Strategy

● Advance  and  complete  Phase  3  clinical  development  of  PH94B  for  on-demand  treatment  of

SAD;

●

File  for  and  obtain  regulatory  approval  of  PH94B  for  treatment  of  SAD  in  the  U.S.,  if  our  Phase  3  development  efforts  are
successful;

● Commercialize  PH94B  in  the  U.S.  on  our  own,  if  and  when  approved  for  treatment  of

SAD;

● Advance AV-101 and PH10 through completion of Phase 2 clinical development for treatment of MDD on our own, and, if our Phase 2 development efforts are

successful, through completion of Phase 3 clinical development for treatment of MDD, either on our own or with a collaborator;

●

File  for  and  obtain  regulatory  approval  of AV-101  and  PH10  for  treatment  of  MDD  in  the  U.S.,  if  they  are  advanced  into  and  successfully  complete  Phase  3
development;

● Commercialize  AV-101  and  PH10  in  the  U.S.  on  our  own  or  with  a  collaborator,  if  and  when

approved;

●

●

●

●

●

Explore potential of our product candidates, in preclinical studies and in early-stage clinical clinical studies, in additional CNS indications, including evaluation of
PH94B, AV-101 and PH10 in additional neuropsychiatry disorders such as PTSD, GAD, and SI, as well as AV-101’s potential as a treatment for LID and NP;

Evaluate the market potential and regulatory pathways for our product candidates in China, the European Union (the EU), Japan, Hong Kong, South Korea and other
countries outside the U.S., and move forward where and when it may make business and strategic sense for us to proceed;

Explore  potential  for  development  and  commercialization  collaborations  to  advance  clinical  development,  file  for  and  obtain  regulatory  approval  of,  and
commercialize our product candidates in China, the EU, Japan, Hong Kong, South Korea, and other global markets outside the U.S.;

 Continue our research and development efforts to evaluate the potential for our existing product candidates in the treatment of additional CNS indications, and the
identification of new drug candidates and new areas of interest;

Enhance the probability of our success by developing and commercializing unique assets with differentiated features, and focus our development activities on CNS
indications where we can make well-informed go/no-go decisions;

● Utilize  the  strengths  of  our  proprietary  hPSC-based  cardiotoxicity  assay  system, CardioSafe  3D,  and  our  scientific  know-how  to  both  expand  our  CNS  product
candidate portfolio through our internal drug rescue programs and lessen our long-term reliance on the success of any one particular program to facilitate our long-
term growth; and

●

Leverage the strengths of our hPSC-based intellectual property portfolio to explore potential for one or more additional strategic out-licensing transactions in the RM
and  cell  therapy  (RM/CT)  fields  focused  on  applications  of  blood,  cartilage  and/or  liver  cells,  with  each  such  transaction  similar  in  scope  and  structure  to  the
BlueRock Agreement.

The following table summarizes the status of our development programs as of the filing date of this Annual Report.

Our Product Pipeline

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Table of Contents

PH94B Neuroactive Nasal Spray for SAD

Our Programs

SAD, a social phobia that affects as many as 15 million Americans according to the Anxiety and Depression Association of America (ADAA), is characterized by an intense
and persistent fear of embarrassment, evaluation, humiliation, judgment, and rejection in everyday social or performance situations, leading the individual to avoid anxiety and
fear-producing  social  situations  when  possible,  even  if  such  avoidance  is  detrimental  to  the  individual’s  employment,  social  activities  and  overall  quality  of  life.  SAD  is
commonly treated chronically with ADs, which have slow onset of effect (several weeks or months) and known side effects that may make them unattractive to individuals
intermittently or episodically affected by SAD. Benzodiazepines, also known as benzos, and beta blockers, which are prescribed off-label to treat SAD, have been found in third
party literature to have addictive or sedative properties, and have other adverse effects when used to treat SAD.

PH94B  neuroactive  nasal  spray  is  a  synthetic  investigational  neurosteroid  with  a  novel,  rapid-onset  mechanism  of  action  that  is  fundamentally  different  from  all  current
treatments  for  SAD.  Developed  from  proprietary  compounds  called  pherines  and  administered  at  microgram  doses  as  an  odorless  nasal  spray,  PH94B  activates  nasal
chemosensory receptors that trigger neural circuits in the brain that suppress fear and anxiety. Specifically, PH94B engages nasal chemosensory receptors that trigger a subset
of neurons in the main olfactory bulbs (OB). OB neurons then stimulate inhibitory GABAergic neurons in the limbic amygdala, releasing anxiolytic neuropeptide S, decreasing
release of norepinephrine, and facilitating fear extinction activity of the limbic-hypothalamic parasympathetic system.

In a 91-patient published, peer-reviewed, randomized, double-blind, placebo-controlled Phase 2 clinical trial, which included both laboratory-based public speaking and social
situation  challenges,  PH94B,  administered  as  a  nasal  spray  at  a  microgram  dose,  significantly  improved  the  primary  efficacy  endpoint,  as  assessed  using  subjective  anxiety
ratings on the Subjective Units of Distress Scale (SUDS), within 10 to 15 minutes of self-administration, without systemic exposure. It was not observed to be addictive, sedative
or  have  other  adverse  events.  In  a  22-patient,  four-week,  randomized,  double  blind,  placebo-controlled  pilot  Phase  3  crossover  study,  subjects  receiving  PH94B  had  a
significantly greater decrease in average peak SUDS scores compared to placebo within one week of treatment.  There was also a significantly greater decrease in Liebowitz
Social Anxiety Scale (LSAS) avoidance scores for subjects who received PH94B first, before crossing over to placebo. These data were presented in a poster session at ADAA’s
2019 Annual Conference. PH94B's safety profile was excellent in all clinical studies to date, without systemic exposure and with no serious adverse events. 

We acquired PH94B in September 2018 on a non-cash basis through the issuance of unregistered shares of our common stock under a license from Pherin Pharmaceuticals, Inc.
(Pherin) giving us the exclusive worldwide rights to develop and commercialize PH94B. With its novel mechanism of pharmacological action, rapid-onset of therapeutic effects
and exceptional safety  and  tolerability  profile  shown  in  clinical  trials  to  date,  we  believe  PH94B  neuroactive  nasal  spray  is  an  excellent  product  candidate  with  potential  to
become the first FDA-approved, on-demand, as-needed treatment for SAD. We are currently preparing for the initial pivotal Phase 3 study of PH94B as a first-line on-demand
treatment for SAD. Subject to securing sufficient financing, we currently plan to begin this initial pivotal Phase 3 study in the first half of 2020.

AV-101 for MDD

According to the World Health Organization (WHO), depression is the leading cause of disability worldwide, affecting over 300 million people, or approximately 4.4% of the
global population. Statistics from the U.S. National Institute of Mental Health (NIMH) indicate that an estimated 17.3 million adults in the U.S., or approximately 7.1% of all
adults in the U.S., had at least one major depressive episode in 2017. While most people will experience depressed mood at some point during their lifetime, MDD is different.
In typical depressive episodes, the person experiences depressed mood, loss of interest and enjoyment, and reduced energy leading to diminished activity and impaired daily
functioning  for  at  least  two  weeks  and  often  much  longer.  Symptoms  of  MDD  also  may  include  diminished  pleasure  in  activities,  changes  in  appetite  that  result  in  weight
changes, insomnia or oversleeping, psychomotor agitation, loss of energy or increased fatigue, feelings of worthlessness or inappropriate guilt, difficulty thinking, concentrating
or making decisions, and thoughts of death or suicide and attempts at suicide. MDD is the psychiatric diagnosis most commonly associated with suicide.

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For many people, depression cannot be controlled for any length of time without treatment. Current oral ADs available in the multi-billion-dollar global depression market,
including commonly-prescribed oral SSRIs and SNRIs, have modest efficacy, substantial lag of onset of action, and considerable side effects. Approximately two out of every
three depression sufferers do not receive adequate therapeutic benefits from their initial treatment with a standard AD, and the likelihood of achieving remission of depressive
symptoms  declines  with  each  successive AD  treatment  attempt.  Even  after  multiple  treatment  attempts,  approximately  one-third  of  depression  sufferers  still  fail  to  find  an
adequately effective AD. In addition, this trial and error process and the systemic effects of the various ADs involved may increase the risk of patient tolerability issues and
serious side effects, including suicidal thoughts and behaviors in certain groups. New generation ADs with different mechanisms of action, faster onset activity and fewer side
effects are needed.

Convincing  clinical  data  involving  the  NMDAR  antagonist,  ketamine,  and  its  isomer,  esketamine, support  that  the  NMDAR  complex  is  involved  in  improving  depressive
symptoms faster than current ADs. Ketamine-based therapies block the ion channel of the NMDAR, and this blockade is associated with significant psychological side effects
and safety concerns.

AV-101  (4-Cl-KYN)  is  an  orally-available  investigational  prodrug  of  7-chlorokynurenic  acid  (7-Cl-KYNA),  a  potent  and  selective  full  antagonist  of  the  glycine  site  of  the
NMDAR. AV-101’s mechanism of action is fundamentally different from all current oral ADs. In preclinical models, after oral administration, AV-101 is actively transported
across  the  blood-brain  barrier  and  converted  into  7-Cl-KYNA  in  the  brain,  primarily  in  astrocytes  and  predominantly  by  kynurenine  aminotransferase  II,  the  major  enzyme
responsible for the levels of kynurenic acid that can be rapidly mobilized in the brain. Although 7-Cl-KYNA is a full antagonist at the glycine site of the NMDAR, it does not
block the ion channel of the NMDAR. Instead, 7-Cl-KYNA is an allosteric antagonist and down-regulates the NMDAR, which, in part, accounts for AV-101’s exceptional
safety profile and lack of psychological side effects and safety concerns.

In clinical and nonclinical testing, AV-101 has good oral bioavailability, an excellent pharmacokinetic ( PK) profile, and is not an inhibitor or inducer of the human cytochrome
P450 (CYP) isoforms. No binding of AV-101 or 7-Cl-KYNA to off-site targets was identified by an extensive receptor screening. Moreover, in all clinical trials to date, AV-101
has been safe and very well-tolerated with no psychological side effects or safety concerns, and no treatment-related serious adverse events that are often observed with classic
channel-blocking NMDAR antagonists such as ketamine and amantadine. We are conducting our ELEVATE Study to evaluate the safety and efficacy of AV-101 as an add-on
treatment of MDD in adult patients with an inadequate response to standard, FDA-approved oral ADs s. We currently anticipate that we will be able to report top line results of
the ELEVATE Study during the second half of 2019. The Principal Investigator of the ELEVATE Study is Dr. Maurizio Fava of Harvard Medical School. Dr. Fava was the co-
Principal  Investigator  with  Dr. A.  John  Rush  of  the  largest  clinical  trial  ever  conducted  in  depression,  STAR*D,  whose  findings  were  published  in  journals  such  the  New
England Journal of Medicine and the Journal of the American Medical Association. In published preclinical studies, AV-101 has been shown to have rapid, persistent, AMPA-
dependent  antidepressive  effects  similar  to  ketamine  controls.  Recent  nonclinical  results  also  indicate  that  chronic  administration  of  4-Cl-KYN  induces  hippocampal
neurogenesis, a hallmark of drugs that have antidepressive effects, and increases endogenous levels of KYNA, which also is a functional NMDAR glycine site antagonist.

The FDA has granted Fast Track designation for development of AV-101 as an add-on treatment for MDD in adult patients with an inadequate response to standard, FDA-
approved ADs.

We believe the potential for widespread and long-term use of ketamine-based therapies for MDD may be limited by the potential for abuse, dissociative and other psychological
side effects and by the inconvenience and practical challenges associated with required administration in a clinical setting. In the event that the cost, side effects, safety concerns,
required  in-clinic  administration  or  other  factors  limit  the  use  of  ketamine-based  therapies  and  result  in  relapse  of  MDD  and/or  suicidal  ideation,  we  believe AV-101  has
potential to prevent relapse of MDD and/or suicidal ideation without ketamine-like side effects and safety concerns, when administered orally to ketamine therapy responders,
on an at-home basis, following cessation of ketamine-based therapy. In May 2019, we announced top line results from the NIMH’s small, exploratory Phase 2 clinical study of
AV-101  as  a  monotherapy  (given  alone)  in  patients  with  treatment-resistant  depression  ( TRD),  a  disease  characterized  by  serious,  long-lasting  episodes  of  depression.  The
average length of the current depressive episode of the 19 TRD patients that completed the NIMH study was 8.6 years. Prior to participating in the NIMH study, patients had
undergone an average of 7.8 attempts to treat their TRD over their lifetime, using multiple different antidepressant drugs. In this severe treatment resistant population, AV-101
given alone, as a monotherapy, did not demonstrate significant separation from placebo on the primary outcome measure, the change from baseline in the Hamilton Depression
Rating Scale (HDRS) total score compared to placebo. A key objective of the NIMH study was to evaluate safety and tolerability of AV-101 in TRD patients, and, consistent
with our Phase 1 studies, AV-101 was very well-tolerated with no ketamine-like psychological side effects or safety concerns and no treatment-related serious adverse events. In
sharp contrast to the NIMH monotherapy study in severe TRD patients, our ELEVATE Study is intended to evaluate AV-101 as an adjunctive therapy (as add-on treatment
given with a current oral AD) in patients experiencing less severe depression. We plan to leverage our ELEVATE Study Investigational New Drug application ( IND) to conduct
an exploratory Phase 2 study to assess the efficacy and safety of AV-101 as an add-on treatment with standard ADs to prevent relapse of MDD following successful ketamine-
based therapy.

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PH10 Neuroactive Nasal Spray for MDD

PH10 neuroactive nasal spray is a synthetic investigational neurosteroid with a novel, rapid-onset mechanism of action that is fundamentally different from all current treatments
for  MDD.  Developed  from  proprietary  compounds  called  pherines  and  administered  at  microgram  doses  as  an  odorless  nasal  spray,  PH10  activates  nasal  chemosensory
receptors that trigger neural circuits in the brain that produce antidepressant effects. Specifically, PH94B engages nasal chemosensory receptors that trigger a subset of neurons
in the main OB. OB neurons then stimulate neurons in the limbic amygdala that release norepinephrine and increase activity of the limbic-hypothalamic sympathetic nervous
system.

In  an  exploratory  30-patient  Phase  2a  clinical  trial,  PH10  was  well-tolerated  and,  at  microgram  doses,  demonstrated  rapid-onset  antidepressant  effects,  as  measured  by  the
Hamilton Depression Rating Scale (HAM-D), without systemic psychological side effects or safety concerns. PH10 is a new generation antidepressant with a mechanism of
action that is fundamentally different from AV-101 and all current ADs. As with AV-101, we believe PH10 has potential for multiple applications in global depression markets,
initially as a stand-alone front line therapy for MDD, and as both an add-on therapy to augment current FDA-approved ADs for patients with MDD who have an inadequate
response to standard ADs, and to prevent relapse following successful treatment with ketamine-based therapy.

We acquired PH10 from Pherin in October 2018, on a non-cash basis through the issuance of unregistered shares of our common stock. Under our license, we have exclusive
worldwide rights to develop and commercialize PH10. We are currently planning for Phase 2b development of PH10 as a first-line treatment for MDD. Subject to securing
sufficient financing, we plan to submit our IND for a Phase 2b study of PH10 in MDD in the second half of 2020, and, if authorized by the FDA, begin the study in the second
half of 2020.

Additional Potential Clinical Development Programs

Suicidal Ideation

According to the WHO, every year approximately 800,000 people worldwide take their own life and many more attempt suicide. The U.S. Centers for Disease Control (CDC)
views suicide as a major public health concern in the U.S. as rates of suicide have been increasing for both men and women and across all age groups. Suicide is the 10th
leading cause of death in the U.S. and is one of just three leading causes that are on the rise. According to experts in the field of suicidal ideation (SI), characterized as suicidal
thoughts  and  behavior,  the  number  of Americans  who  die  by  suicide  is,  since  2010,  higher  than  those  who  die  in  motor  vehicle  accidents.  People  of  all  genders,  ages,  and
ethnicities can be at risk for suicide. Suicidal ideation is complex and there is no single cause. The NIMH attributes many different factors to someone making a suicide attempt,
including,  but  not  limited  to,  depression,  other  mental  health  disorders  or  substance  abuse. Additionally,  according  to  reports  released  by  the  U.S.  Department  of  Veterans
Affairs (VA), the U.S. Military Veteran population is at significantly higher risk for suicide than the general population.

We  are  collaborating  with  Baylor  College  of  Medicine  (Baylor)  and  the  VA  on  a  small  Phase  1b  clinical  trial  of AV-101  in  healthy  volunteer  U.S.  Military  Veterans  from
Operation Enduring Freedom, Operation Iraqi Freedom or Operation New Dawn (the Baylor Study). The Baylor Study is a randomized, double-blind, placebo-controlled cross-
over  study  designed  as  a  target  engagement  study  as  the  first-step  in  our  plans  to  test  potential  anti-suicidal  effects  of AV-101  in  U.S.  Military  Veterans  who  respond  to
ketamine-based therapy. Dr. Marijn Lijffijt of Baylor is the Principal Investigator of the Baylor Study. In June 2018, we entered into a Material Transfer Cooperative Research
and  Development Agreement  ( MT  CRADA)  with  the  VA  regarding  clinical  trial  material  for  the  Baylor  Study.  Government  funding  from  the  VA  is  being  provided  for
substantially all other study costs.

Neuropathic Pain

NP  affects  approximately  33  million  people  in  the  United  States  (excluding  patients  with  back  pain)  according  to  an  article  published  in  the  Journal  of  Pain  Research  in
2017. NP is a complex, chronic pain state characterized by a steady burning "pins and needles" or "electric shock" sensation that results in abnormal neuronal function after
nerve damage. The American Chronic Pain Association has identified various causes of NP, including tissue injury, nerve damage or disease, diabetes, infection, toxins, certain
types  of  drugs,  such  as  antivirals  and  chemotherapeutic  agents,  certain  cancers,  and  even  chronic  alcohol  intake. Current  treatments  for  NP  include  antidepressants,
anticonvulsants (such as gabapentin and pregabalin), and opioids, among others. However, current medications may offer inadequate efficacy, have limiting side effects, and be
associated with abuse.

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The effects of AV-101 as a potential new treatment for NP were assessed in published peer-reviewed preclinical studies involving four well-established models of pain. In these
studies, AV-101 was observed to have robust, dose-dependent anti-nociceptive effects, as measured by  dose-dependent reversal of NP in the Chung (nerve ligation), formalin
and carrageenan thermal models in rats, and was well-tolerated. The publication, titled: “Characterization of the effects of L-4-chlorokynurenine on nociception in rodents,” by
lead  author,  Tony  L.  Yaksh,  Ph.D.,  Professor  in Anesthesiology  at  the  University  of  California,  San  Diego,  was  published  in  The  Journal  of  Pain  in April  2017  (J  Pain.
18:1184-1196, 2017)). In recent studies in this preclinical model, AV-101 also had positive results using pregabalin (Lyrica®2) as an active control. AV-101 demonstrated robust
analgesic  effects,  similar  to  Lyrica,  but  fewer  side  effects  as  measured  in  the  rotarod  assay.  Neurontin  and  Lyrica  have  been  associated  with  sedation  and  mild  cognitive
impairment in third party literature and are often prescribed for treatment of NP. Other commonly prescribed medications for NP include drugs targeting opioid receptors in the
brain. Unfortunately, misuse of such drugs can lead to a significantly increased risk of addiction, and, we believe, their therapeutic utility for neuropathic pain is unclear.

Based on successful preclinical studies involving AV-101, gabapentin and pregabalin, as well as AV-101’s exceptional safety profile in all preclinical and clinical studies to
date, we are exploring the optimal development path forward, subject to securing sufficient capital, for Phase 2a clinical development of AV-101 as a new generation, non-
opioid treatment to reduce debilitating NP, as well as its potential to avoid sedative side effects and cognitive impairment that have been observed in third party literature to be
associated with other NP treatments, and to reduce the risk of addiction associated with pain medications targeting opioid receptors.

The FDA has granted Fast Track designation for development of AV-101 as a potential new, non-opioid treatment of NP.

Levodopa-Induced Dyskinesia

Parkinson’s  disease  ( PD)  is  the  second  most  common  neurodegenerative  disease  worldwide,  affecting  approximately  one  million  people  in  the  U.S.,  according  to  the
Parkinson’s Foundation. Although there is no "one-size-fits-all” description of PD, PD is a complex neurodegenerative disorder that occurs when brain cells responsible for
making dopamine, a chemical that coordinates movement, stop working or die. This results in progressive deterioration of voluntary motor control. Loss of dopamine neurons is
thought to be due to neurotoxicity associated with misfolding of proteins and is associated with increased signaling of glutamate, the most abundant excitatory neurotransmitter
in the brain. Increased glutamate activity is involved with aberrant neuronal signaling and excitotoxic death of neurons. Classic PD motor symptoms include muscular rigidity,
resting tremor, and postural and gait impairment. Typically, PD patients present with a combination of motor and non-motor symptoms. Non-motor symptoms may include
cognitive impairment, sleep disorders pain and fatigue. There is currently no medication to slow, delay, stop or cure PD, and currently available treatments are symptomatic.
Treatment of motor symptoms with oral levodopa, introduced about 50 years ago, remains the gold standard treatment.

Levodopa-induced dyskinesia (LID) is a disorder that affects people with PD who are treated with levodopa, for an extended period of time. Oral levodopa remains the most
effective  therapy  for  motor  symptoms  of  PD.  However,  after  continuous  long-term  use  (longer  than  five  years),  many  PD  patients  experience  LID.  Although  clinical
manifestations of LID are heterogenous, LID is commonly associated with abnormal involuntary movements, including chorea and dystonia. These motor complications tend to
become  more  severe  as  PD  progresses  and  as  the  duration  of  levodopa  treatment  is  extended,  until  the  impact  of  LID  may  compromise  the  advantage  of  treatment  with
levodopa. PD treatment with levodopa is routinely delayed due to concerns over LID. Once LID develops, levodopa-treated PD patients may be faced with a choice between
immobility due to untreated and uncontrolled PD, or mobility with the associated LID. Studies published in the New England Journal of Medicine and Movement  Disorders
have shown LID develops in approximately 45% of levodopa-treated Parkinson’s disease patients after five years and 80% after 10 years of levodopa treatment. In the U.S.,
there are an estimated 150,000 to 200,000 people with PD who are impacted by LID.

AV-101 is not a dopamine-based drug candidate. Rather, as a member of a new generation of investigational medicines in neuropsychiatry and neurology known as NMDA
glutamate  receptor  modulators, AV-101’s  active  metabolite,  7-Cl-KYNA,  is  a  potent  and  selective  NMDA  receptor  glycine  site  antagonist  with  neuroprotective  properties,
which receptor plays a major role in glutamatergic signaling and has been shown to be a therapeutic target for LID.

In a recently reported preclinical study in the “gold standard” MPTP monkey model of PD and LID, AV-101’s efficacy against LID was measured through behavioral scores on
a dyskinesia scale, and a Parkinsonian disability scale was used to measure levodopa anti-parkinsonian efficacy. This study demonstrated that AV-101 significantly (p = 0.01)
reduced  LID.  Importantly, AV-101  did  not  reduce  the  timing,  extent,  or  duration  of  the  therapeutic  effects  of  levodopa,  indicating  that AV-101  did  not  impact  the  anti-
parkinsonian efficacy of levodopa. Moreover, AV-101 did not cause adverse events often associated with amantadine therapy for LID, such as hallucinations, dizziness, and
falls. These recent preclinical results confirm our prior antidyskinesia study in this MPTP monkey model. We believe these preclinical data and AV-101’s positive safety profile
in all clinical studies to date support AV-101’s potential to treat LID, while both maintaining the antiparkinsonian benefits of levodopa and without causing hallucinations or
other serious side effects that may be associated with amantadine therapy for LID. As  a  result,  we  are  exploring  the  optimal  development  path  forward,  subject  to  securing
sufficient capital, for Phase 2a clinical development of AV-101 as a new generation treatment for LID.

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General Anxiety Disorder

Generalized Anxiety Disorder (GAD) is a common chronic neuropsychiatric disorder characterized by persistent, debilitating and excessive concern and worry about family,
friends,  health,  money,  work,  or  other  everyday  issues  and  situations.  Individuals  with  GAD  find  it  difficult  to  control  their  worry  and  may  worry  more  about  actual
circumstances than seems appropriate. They may also expect the worst even when there is no apparent reason to do so. GAD is diagnosed when an individual is unable or finds
it difficult to control worry on more days than not for at least six months and has three or more of the many symptoms of GAD, such as excessive and ongoing worrying and
tension, an unrealistic view of problems, restlessness, irritability, difficulty concentrating, or being easily startled. This differentiates GAD from worry that may be specific to a
set stressor or for a more limited period of time. According to the Anxiety and Depression Association, GAD affects approximately 6.8 million adults in the U.S. in any given
year. GAD comes on gradually and can begin across the life cycle, though the risk is highest between childhood and middle age.

People  with  GAD  do  not  know  how  to  stop  the  worry  cycle  and  feel  it  is  beyond  their  control,  even  though  they  usually  realize  that  their  anxiety  is  more  intense  than  the
situation  warrants.  Many  individuals  with  GAD  may  avoid  situations  because  they  have  the  disorder  or  they  may  not  take  advantage  of  important  professional  or  social
opportunities in their lives due to their anxiety and worry. When their anxiety is severe, it is difficult for individuals with GAD to carry out even the simplest of daily activities.
Currently, the standard of care for GAD includes psychotherapy and certain medications with limited therapeutic benefits and various side effects and safety concerns, including
antidepressants (SSRIs and SNRIs) and benzodiazepines.

PH94B demonstrated efficacy in a small placebo-controlled study in patients with GAD. Twenty one patients were randomized to receive 200 pg PH94B or placebo in a one
second aerosol pulse to the chemosensory epithelium of the anterior nasal septum. Thirty minutes after treatment there was mean reduction of 32.0% for the PH94B group and
19.6%  for  the  placebo  group  in  the  total  HAM-A  score.  Electrophysiological  changes  (respiratory,  cardiac,  and  electrodermal  frequency),  concordant  with  the  reduction  in
anxiety, were significantly greater for the PH94B group. We believe these transient anti-anxiety effects of PH94B may warrant further investigation in a Phase 2b GAD trial.

Post-Traumatic Stress Disorder

Post-traumatic  stress  disorder  (PTSD)  is  a  clinically  diagnosed  psychiatric  disorder  that  develops  in  some  people  who  have  experienced  or  witnessed  a  shocking,  scary,
dangerous  or  life-threatening  event,  such  as  military  combat,  natural  disasters,  terrorist  incidents,  serious  accidents,  or  physical  or  sexual  assault  in  adulthood  or
childhood. Symptoms of PTSD include flashbacks, nightmares, severe anxiety, uncontrollable intrusive thoughts, and emotional numbing after the event. More than 8 million
people in the U.S. suffer from PTSD. Anyone can develop PTSD at any age. According to the National Center for PTSD, about 7 or 8 out of every 100 people will experience
PTSD at some point in their lives. PTSD is often accompanied by depression, substance abuse or one or more of the other anxiety disorders.

It is natural to feel afraid during and after a traumatic situation. Fear triggers many split-second changes in the body to help defend against danger or to avoid it. This “fight-or-
flight”  response  is  a  typical  reaction  meant  to  protect  a  person  from  harm.  Because  PTSD  is  associated  with  a  heightened  “fight  or  flight”  response  mediated  by  increased
sympathetic nervous response to conditioned stimuli, an agent which decreases sympathetic tone may be able to treat some symptoms of PTSD. Our PH94B neuroactive nasal
spray is a neurosteroid that binds to chemosensory cells in the olfactory bulb and indirectly decreases amygdala function, reduces stress-induced blood pressure, heart rate and
sweating  mediated  by  the  sympathetic  nervous  system.  In  Phase  2  studies,  at  microgram  doses,  PH94B  has  been  shown  to  have  anti-anxiety  effects  in  patients  with  both
generalized anxiety disorder and social anxiety disorder. PH94B may therefore have utility either as monotherapy or as add-on therapy in PTSD.  Available therapeutic options
for PTSD are limited, including only two FDA-approved SSRI antidepressants, which have limited efficacy, undesirable side effects, and target only the symptoms of PTSD,
not the underlying disorder itself. We are currently assessing PH94B’s potential for Phase 2a clinical development as a new generation, rapid-acting, anxiolytic for treatment of
PTSD.

Epilepsy

Epilepsy is one of the most prevalent neurological disorders, affecting almost 1% of the worldwide population. According to the Epilepsy Foundation, as many as three million
Americans have epilepsy, and one-third of those suffering from epilepsy are not effectively treated with currently available medications. In addition, standard anticonvulsants
can cause significant side effects, which frequently interfere with compliance.

Glutamate  is  a  neurotransmitter  that  is  also  critically  involved  in  the  pathophysiology  of  epilepsy.  Through  its  stimulation  of  the  NMDAR  subtype,  glutamate  has  been
implicated  in  the  neuropathology  and  clinical  symptoms  of  the  disease.  In  support  of  this,  NMDAR  antagonists  are  potent  anticonvulsants.  However,  as  noted,  classic  ion
channel-blocking  NMDAR  antagonists  are  limited  by  adverse  effects,  such  as  neurotoxicity,  declining  mental  status,  and  the  onset  of  psychotic  symptoms  following
administration of the drug. The endogenous amino acid glycine modulates glutamatergic neurotransmission by stimulating the glycine coagonist site of the NMDAR. Glycine
site  antagonists  such  as AV-101’s  active  metabolite,  7-Cl-KYNA,  inhibit  NMDAR  function  and  are  therefore  anticonvulsant  and  neuroprotective.  Importantly,  glycine  site
antagonists  have  fewer  and  less  severe  side  effects  than  classic  ion  channel-blocking  NMDAR  antagonists  and  other  antiepileptic  agents,  making  them  a  safer  potential
alternative to, and one expected to be associated with greater patient compliance than, currently available anticonvulsant medications.

In addition, another active metabolite of AV-101, 4-Cl-3-hydroxyanthranilic acid, inhibits the synthesis of quinolinic acid ( QUIN), which is an endogenous NMDAR agonist
that causes convulsions and excitotoxic neuronal damage.

AV-101  has  been  shown  to  protect  against  seizures  and  neuronal  damage  in  preclinical  animal  models  of  epilepsy.  We  believe AV-101’s  dual  action  as  a  NMDAR  GlyB
antagonist and QUIN synthesis inhibitor, and exploratory preclinical data, together with human safety data in all clinical studies to date, may provide support for AV-101’s
potential as a Phase 2a clinical development candidate for treatment of epilepsy. As a result, subject to securing sufficient capital, we anticipate conducting additional preclinical
studies in 2020 to assess AV-101’s optimal development path forward and potential for future Phase 2a clinical development as a new generation treatment for epilepsy.

VistaStem Therapeutics - Stem Cell Technology-Based Programs

Stem cells are the building blocks of all cells of the human body.  They have the potential to develop into many different mature cell types. Stem cells are defined by a minimum
of  two  key  characteristics:  (i)  their  capacity  to  self-renew,  or  divide  in  a  way  that  results  in  more  stem  cells;  and  (ii)  their  capacity  to  differentiate,  or  turn  into  mature,
specialized cells that make up tissues and organs. There are many different types of stem cells that come from different places in the body or are formed at different times
throughout our lives, including pluripotent stem cells and adult or tissue-specific stem cells, which are limited to differentiating into the specific cell types of the tissues in which
they reside. We focus exclusively on hPSCs, which can be differentiated into all of the more than 200 types of cells in the human body, can be expanded readily, and have
diverse medical research, drug discovery, drug rescue (DR), drug development and therapeutic applications. We believe hPSCs can be used to develop numerous cell types,
tissues and customized assays that can mimic complex human biology, including heart biology for DR applications.

VistaStem Therapeutics (VistaStem) is our wholly owned subsidiary focused on applying our hPSC technology to discover, rescue, develop and commercialize proprietary new
chemical entities (NCEs) for our CNS pipeline and cellular therapies and RM involving hPSC-derived blood, cartilage, heart and liver cells. We used our hPSC-derived human
heart  cells  to  develop CardioSafe  3D™,  our  customized in vitro  bioassay  system  for  predicting  heart  toxicity  of  potential  DR  NCEs.    We  believe CardioSafe  3D  is  more
comprehensive and clinically predictive than the hERG assay and provides us with new generation human cell-based technology to identify and evaluate DR candidates and
develop DR NCEs for our CNS pipeline and/or out-licensing.

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Drug Rescue 

Our DR activities are focused on producing, for our internal CNS pipeline or out-licensing, novel, proprietary and safer variants of still-promising NCEs previously discovered,
optimized and tested for efficacy by pharmaceutical companies and others but terminated before FDA approval due to unexpected heart toxicity. Our DR strategy involves using
CardioSafe 3D to assess the cardiac toxicity that caused certain NCEs available in the public domain to be terminated, and then produce and develop new, potentially safer, and
proprietary NCEs. We believe the pre-existing public domain knowledge base supporting the therapeutic and commercial potential of NCEs that we target for our DR programs
will provide us with a valuable head start as we launch each of our potential DR programs. The essential components of our DR strategy are to (i) leverage the substantial prior
investments  by  global  pharmaceutical  companies  and  others  in  discovery,  optimization  and  efficacy  validation  of  the  NCEs  we  identify  in  the  public  domain  and  (ii)  use
CardioSafe  3D  to  enhance  our  understanding  of  the  cardiac  liability  profile  of  such  NCEs,  insight  not  previously  available  when  the  NCEs  were  originally  discovered,
optimized for efficacy and developed by others, and (iii) demonstrate preclinical proof-of-concept (POC) as to the efficacy and safety of new, safer DR NCEs in standard in
vitro  and in vivo  models  earlier  in  development  and  with  substantially  less  investment  in  discovery  and  preclinical  development  than  was  required  of  others  prior  to  their
decision to terminate the original NCE. In this context, POC means that the lead DR NCE, as compared to the original previously-terminated original NCE, demonstrates both
(i) equal or superior efficacy in the same, or a similar, in vitro and in vivo preclinical efficacy models used by the initial developer of the previously-terminated NCE before it
was terminated for cardiac safety reasons, and (ii) significant reduction of concentration dependent cardiotoxicity in CardioSafe 3D.

Regenerative Medicine

Stem cell technology-based cell therapy (CT)  and  RM  have  the  potential  to  transform  healthcare  by  providing  new  approaches  for  treating  the  fundamental  mechanisms  of
disease.  We  currently  intend  to  establish  strategic  CT-  and/or  RM-focused  collaborations  to  leverage  our  hPSC  technology  platform,  our  expertise  in  human  biology,
differentiation of hPSCs to develop functional adult human cells and tissues involved in human disease, including blood, bone, cartilage, heart and liver cells for CT and RM
purposes. We  have  exclusively  sublicensed  to  BlueRock  Therapeutics,  a  next  generation  RM  company  established  by  Bayer AG  and  Versant  Ventures,  rights  to  certain
proprietary technologies relating to the production of cardiac stem cells for the treatment of heart disease. In a manner similar to our agreement with BlueRock Therapeutics, we
may pursue additional CT and RM collaborations or licensing transactions involving blood, cartilage, and/or liver cells derived from hPSCs for CT and RM applications. 

Intellectual Property

We strive to protect the proprietary know-how and technology that we believe is important to our business, including seeking and maintaining patents intended to cover our
product candidates and related pharmaceutical compositions, their methods of use, including therapeutic and prognostic methods, as well as processes for their manufacture, and
any other aspects of our discoveries and inventions that are commercially important to the development of our business.

We may also rely on trade secrets to protect aspects of our business that are not amenable to, or that we do not consider appropriate for, patent protection. We also rely on know-
how, continuing technological innovation and in-licensing opportunities to develop and maintain our proprietary position. We seek to obtain domestic and international patent
protection, and endeavor to promptly file patent applications for new commercially valuable inventions.

To  protect  our  rights  to  our  proprietary  technology,  we  require  all  employees,  as  well  as  our  external  collaborators,  consultants  and  CROs  when  feasible,  to  enter  into
agreements that require disclosure and assignment to us of ideas, developments, discoveries and inventions made by these employees, consultants, and CROs in the course of
their service to us.

We plan to continue to expand our intellectual property estate by filing patent applications directed to compositions, methods of use, including treatment and patient selection,
formulations and manufacturing processes created or identified from our ongoing development of our product candidates.

Patents

We own and have licensed granted patents and pending patent applications in the U.S. and in certain foreign countries. These patent properties include, but are not limited to:

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AV-101

●

●

●

Two  granted  U.S.  patents  related  to  the  treatment  of  depression  with  AV-101  and  to  certain  unit  dose  formulations  of  AV-101  effective  to  treat
depression;

Pending U.S. patent applications and foreign granted patents and pending foreign patent applications related to treatment of various disorders, including depression,
LID, NP, tinnitus and obsessive-compulsive disorder; and

Pending U.S. patent application related to the prognostic identification of high and low responders to treatment of various CNS disorders with AV-
101.

The  U.S.  and  foreign  patents  related  to AV-101  nominally  expire  between  2034  and  2040,  depending  on  the  particular  subject  matter,  subject  to  extensions  that  may  be
available on a country-by-country basis.

PH94B (licensed by us from Pherin)

●

Two  granted  U.S.  patents  and  other  foreign  patents  related  to  the  reduction  of  anticipatory  anxiety  or  social  phobic
response.

The  U.S.  patents  related  to  PH94B  nominally  expire  either  in  2025  or  2028,  respectively,  and  foreign  patents  nominally  expire  in  2026,  subject  to  extensions  that  may  be
available on a country-by-country basis.

PH10 (licensed by us from Pherin)

● One  allowed  U.S.  patent  application  related  to  treatment  of  depressive  disorders;

and

● Granted  foreign  patents  and  pending  foreign  patent  applications  related  to  treatment  of  depressive

disorders.

The U.S. and foreign patents related to PH10 nominally expire in 2033, subject to extensions that may be available on a country-by-country basis.

Stem Cell Technology (owned by us and/or licensed by us from the University Health Network (Toronto) or Icahn School of Medicine at Mount Sinai)

Cardiac Cells

● U.S.  and  foreign  patents  and  patent  applications  relating  to  methods  for  enriching  pluripotent  stem  cell-derived  cardiomyocyte  cells,  methods  for  generating
epicardium  cells,  methods  for  making  and  using  sino-atrial  node-like  pacemaker  and  ventricular-like  cardiomyocytes  and  methods  for  generation  of  atrial  and
ventricular cardiomyocyte lineages.

The U.S. and foreign patents and patent applications related to cardiac stem cells nominally expire between 2031 and 2037, subject to extensions that may be available on a
country-by-country basis. Additionally, therapeutic and certain other fields of use have been licensed by us to BlueRock Therapeutics under the BlueRock Agreement.

Blood Cells

● U.S.  and  foreign  patents  and  patent  applications  relating  mesoderm  and  definitive  endoderm  cell  populations,  and  to  populations  of  hematopoietic

progenitors.

The U.S. and foreign patents and patent applications related to blood stem cells nominally expire between 2023 and 2032, subject to extensions that may be available on a
country-by-country basis.

Cartilage and Chondrocyte Cells

● U.S.  and  foreign  patents  and  patent  applications  relating  to  methods  and  compositions  for  generating  chondrocyte  lineage  cells  and  cartilage  like

tissue.

The U.S. and foreign patents and patent applications related to blood stem cells nominally expire in 2034, subject to extensions that may be available on a country-by-country
basis.

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Liver and Biliary Cells

● U.S. and foreign patents and patent applications relating to methods for generating hepatocytes and cholangiocytes from pluripotent stem cells and to toxicity typing

using liver stem cells.

The U.S. and foreign patents and patent applications related to blood stem cells nominally expire between 2021 and 2034.

Patent Term

The base term of a U.S. patent is 20 years from the filing date of the earliest-filed non-provisional patent application from which the patent claims priority. The term of a U.S.
patent can be lengthened by patent term adjustment, which compensates the owner of the patent for administrative delays at the USPTO. In some cases, the term of a U.S.
patent is shortened by a terminal disclaimer that reduces its term to that of an earlier-expiring and related patent.

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

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

Some  foreign  jurisdictions,  including  Europe  and  Japan,  also  have  patent  term  extension  provisions,  which  allow  for  extension  of  the  term  of  a  patent  that  covers  a  drug
approved  by  the  applicable  foreign  regulatory  agency.  In  the  future,  if  and  when  our  pharmaceutical  products  receive  FDA  approval,  we  expect  to  apply  for  patent  term
extension on patents covering those products, their methods of use, and/or methods of manufacture.

Trade Secrets

In  addition  to  patents,  we  may  rely  on  trade  secrets  and  know-how  to  develop  and  maintain  our  competitive  position.  We  protect  trade  secrets,  if  any,  and  know-how  by
establishing confidentiality agreements and invention assignment agreements with our employees, consultants, scientific advisors, contractors and partners. These agreements
provide that all confidential information developed or made known during the course of an individual or entity’s relationship with us must be kept confidential during and after
the  relationship.  These  agreements  also  generally  provide  that  all  relevant  inventions  resulting  from  work  performed  for  us  or  relating  to  our  business  and  conceived  or
completed during the period of employment or assignment, as applicable, shall be our exclusive property. In addition, we take other appropriate precautions, such as physical
and technological security measures, to guard against misappropriation of our proprietary information by third parties.

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Trademarks

The Company also owns a registered trademark in the U.S. for “VISTAGEN,” which was renewed in 2014. In addition, we use trademarks in our business for CardioSafe 3D
and LiverSafe 3D.

Strategic Transactions and Relationships

Strategic collaborations are an important cornerstone of our corporate development strategy. We believe that our highly selective outsourcing of certain research, development,
manufacturing  and  regulatory  activities  gives  us  flexible  access  to  a  broad  range  of  capabilities  and  expertise  at  a  lower  overall  cost  than  developing  and  maintaining  such
capabilities and expertise internally on a full-time basis. In particular, we contract with third parties for certain manufacturing, nonclinical development, clinical development
and  regulatory  affairs  support.  We  may  seek  multiple  additional  strategic  collaborations  and  relationships  focused  on  development  and  commercialization  of  our  product
candidates in regions outside the U.S.

Manufacturing and Supply

We neither own nor operate, and currently have no plans to own or operate, any manufacturing facilities. We currently source all of our clinical and nonclinical material supply
through third party contract development and manufacturing organizations (CDMOs). If our product candidates are approved, we intend to contract with CDMOs to produce all
of our future commercial supplies on our behalf.

We have established relationships with CMOs under which the CMOs manufacture clinical and nonclinical supplies of the active pharmaceutical ingredient (API), as well as
drug product, for AV-101, PH94B and PH10 on a purchase order basis. When produced, all clinical supplies are certified by our CDMOs to have been manufactured under
current Good Manufacturing Practices (cGMP). Starting materials and key intermediates to support the production of these candidates are either manufactured by other qualified
suppliers or purchased from chemical suppliers. We do not currently have arrangements in place for either long-term supply or redundant supply of bulk drug substance or drug
product for AV-101, PH94B and PH10. Our CMOs manufacture such product candidates on a purchase order basis under master service and quality agreements. We intend to
put a long-term commercial supply agreement in place at the appropriate time for drug substance and drug product for each product candidate, if development continues. We
plan to mitigate potential commercial supply risks for any products that are approved in the future through inventory management and through exploring additional back-up
manufacturers to provide API and/or drug product.

We continue to refine and scale up the manufacturing process for PH94B to supply our Phase 3 clinical trials, and for AV-101 and PH10 to supply future clinical and nonclinical
studies. We believe we currently have sufficient AV-101 drug substance on hand for our ongoing ELEVATE Study and the ongoing Baylor/VA Study.

AV-101,  PH94B  and  PH10  are  small  molecule  drugs.  The  current  syntheses  of AV-101,  PH94B  and  PH10  are  reliable  and  reproducible  from  readily  available  starting
materials. On-going development work is in progress to ensure that these synthetic routes are cost-effective , robust and amenable to large-scale manufacturing. We expect to
continue to identify and develop drug candidates that are amenable to cost-effective manufacturing at contract manufacturing facilities.

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Sales and Marketing

We believe that we can successfully launch and commercialize PH94B on our own in the U.S., if approved by the FDA, through the hiring of a targeted sales and marketing
force. If an NDA for PH94B in the treatment of SAD is approved by the FDA following our Phase 3 clinical development program, we anticipate hiring and deploying a field
sales force of key account managers calling on hospitals and specialty representatives calling on healthcare professionals who treat SAD. We expect to focus our future sales and
marketing efforts, if PH94B is approved for SAD, on psychiatrists and select primary care physicians and potentially on pediatricians who are likely to see adolescents, as well
as nurse practitioners and psychologists who, in some states, are permitted to prescribe medications.

Should we advance AV-101 and PH10 through successful completion of Phase 2 and Phase 3 clinical development for treatment of MDD and/or other CNS indications, we
plan to file for and obtain regulatory approval of AV-101 and PH10 in the U.S. and then commercialize them in the U.S., either on our own or with a collaborator.

To  develop  and  commercialize  one  or  more  our  product  candidates  in  pharmaceutical  markets  outside  the  U.S.,  if  approved  in  such  markets,  we  may  decide  to  establish
agreements or alliances with one or more pharmaceutical company collaborators and/or distributors. Currently, in China, the EU, Japan, Hong Kong, and South Korea, we plan
to  develop  and  commercialize  our  product  candidates  with  third-party  collaborators  with  successful  operations  involving  development  and/or  commercialization  of  CNS
products, especially neuropsychiatry products. We  anticipate  that  such  collaborations  would  involve  local  clinical  development,  regulatory  submissions  comparable  to  those
required by the FDA in the U.S. and commercial activities necessary to monetize our product candidates. We may also consider other partnering opportunities if we believe the
partnering opportunity will add significant value to our efforts, including through local capabilities and infrastructure, as well as speed to market and financial contributions, in
each case depending on, among other things, the applicable indications, the expected development pathway and related costs, deal terms, our available resources, and whether
the transaction makes strategic sense.

Competition

The biopharmaceutical industry is highly competitive and subject to rapid and significant technological change. The large and growing markets for SAD, MDD, NP, LID, and
other  CNS  diseases  and  disorders  make  them  attractive  therapeutic  areas  for  biopharmaceutical  businesses. We  face  potential  competition  from  many  different  sources,
including  major  pharmaceutical,  specialty  pharmaceutical,  and  biotechnology  companies,  academic  institutions,  governmental  agencies,  and  public  and  private  research
institutions. Any product candidates that we successfully develop and commercialize will compete with existing therapies and new therapies that may become available in the
future. Many of our competitors may have significantly greater financial resources and expertise in research and development, manufacturing, preclinical testing, conducting
clinical studies, obtaining regulatory approvals, and marketing approved products than we do. Several of these entities have commercial products, robust drug pipelines, readily
available capital, and established research and development organizations. Mergers and acquisitions in the pharmaceutical, biotechnology, and diagnostic industries may result
in even more resources being concentrated among a smaller number of our competitors. These competitors also compete with us in recruiting and retaining qualified scientific
and management personnel and establishing clinical study sites and patient registration for clinical studies, as well as in acquiring technologies complementary to, or necessary
for,  our  programs.  Small  or  early-stage  companies  may  also  prove  to  be  significant  competitors,  particularly  through  collaborative  arrangements  with  large  and  established
companies. It is probable that the number of companies seeking to develop products and therapies similar to our products will increase. The key competitive factors affecting the
success of all of our product candidates, if approved, are likely to be their efficacy, safety, convenience, price, the level of branded and generic competition, and the availability
of reimbursement from government and other third-party payors.

Although  currently  there  are  no  FDA-approved  therapies  for  SAD  with  the  mechanism  of  action  of  PH94B,  we  are  aware  of two  companies  with  development  programs
potentially focused on SAD. However, neither of those companies is developing a potential treatment for SAD that is either a nasal spray or involves the same mechanism of
pharmacological action as PH94B.

Although currently there are no FDA-approved oral therapies for MDD with the mechanism of pharmacological action of either AV-101 or PH10, we are aware of  numerous
pharmaceutical and biotechnology companies that are developing therapies targeting the MDD market, including with drug candidates focused on the NMDAR. Certain of the
potential MDD therapies being developed are broad NMDAR antagonists and tend to have multiple target actions. We believe AV-101 is an NMDAR glycine site antagonist
and is modulatory, without negative off-target activity in preclinical screening. We are aware of the numerous companies developing or commercializing therapies for MDD or
NMDAR-targeted  therapies  for  other  CNS  disorders.  Such  companies  include  but  are  not  limited  to,  Acadia,  Adamas,  Alkermes,  Allergan,  Aptynix,  Avanir,  Axsome,
Biohaven,  BlackThorn,  Cadent,  Cerecor,  Eli  Lilly,  ,  Janssen,  Lundbeck,  Minerva,  Navitor,  NeuroRx,  Otsuka,  Novartis,  Perceptive  Neuroscience,  Relmada,  Sage,  Seelos,
Shionogi, Taisho and Takeda.  Additionally, we expect that AV-101 and PH10 will have to compete with a variety of therapeutic procedures for treatment of MDD, such as
psychotherapy and electroconvulsive therapy.

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While  we  believe  that  our  employees  and  consultants,  scientific  knowledge,  technology,  and  development  experience  provide  us  with  competitive  advantages,  many  of  our
potential competitors, alone or with their strategic partners, have substantially greater financial, technical and human resources than we do and significantly greater experience in
the discovery and development of product candidates, obtaining FDA and other regulatory approvals of treatments and the commercialization of those treatments.  

We believe that VistaStem’s hPSC technology platform, the hPSC-derived human cells we produce, and the customized human cell-based assay systems we have formulated
and  developed  are  capable  of  being  competitive  in  the  diverse  and  growing  global  stem  cell,  CT  and  RM  markets,  including  potential  markets  involving  the  sale  of  hPSC-
derived cells to third-parties for their in vitro drug discovery and safety testing, contract predictive toxicology drug screening services for third parties, internal drug discovery,
drug development and DR of new NCEs, and RM, including in vivo CT research and development. A representative list of such biopharmaceutical companies pursuing one or
more of these potential applications of adult and/or hPSC technology includes, but is not limited to, the following: Acea, Astellas, Athersys, BioCardia, BioTime, Caladrius,
Cellectis, Cellerant, Cytori, Fujifilm, HemoGenix, International Stem Cell, Neuralstem, Organovo, PluriStem, and Stemina BioMarker Discovery. Pharmaceutical companies
and other established corporations such as Bristol-Myers Squibb, Charles River, GE Healthcare, GlaxoSmithKline, Novartis, Pfizer, Roche Holdings, Thermo Fisher and others
have  been  and  are  expected  to  continue  pursuing  internally  various  stem  cell-related  research  and  development  programs.  Many  of  the  foregoing  companies  have  greater
resources and capital availability and as a result, may be more successful in their research and development programs than us. We anticipate that acceptance and use of hPSC
technology for drug development, CT and RM will continue to occur and increase at pharmaceutical and biotechnology companies in the future.

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Government  authorities  in  the  U.S.  at  the  federal,  state  and  local  level  and  in  other  countries  extensively  regulate,  among  other  things,  the  research,  development,  testing,
manufacture, quality control, approval, labeling, packaging, storage, record-keeping, promotion, advertising, distribution, post-approval monitoring/pharmacovigilance, safety
and  periodic  reporting,  marketing  and  export  and  import  of  drug  products.  Generally,  before  a  new  drug  can  be  marketed  in  a  given  jurisdiction,  considerable  data
demonstrating its quality, safety and efficacy must be obtained and/or generated, organized into a format specific to each regulatory authority, submitted for review and the drug
must be approved by the relevant regulatory authority or authorities.

Government Regulation

U.S. Drug Development

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

Each of our product candidates must be approved by the FDA through the NDA process before they may be legally marketed in the U.S. The process required by the FDA
before a drug may be marketed in the U.S. requires substantial time, effort and financial resources and generally involves the following:

● Completion of extensive non-clinical studies and testing, sometimes referred to as non-clinical laboratory tests, non-clinical animal studies and formulation studies,

in accordance with applicable regulations, including the FDA’s current Good Laboratory Practice (cGLP) regulations;

●

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

● Approval  by  an  independent  institutional  review  board  (IRB)  or  ethics  committee  representing  each  clinical  trial  site  before  each  trial  may  be

initiated;

●

●

Performance  of  adequate  and  well-controlled  human  clinical  trials  in  accordance  with  applicable  IND  and  other  clinical  trial-related  regulations,  sometimes
collectively referred to as good clinical practice (cGCP) to establish the safety and efficacy of the proposed drug for each proposed indication;

Submission  to  the  FDA  of  an  NDA  for  marketing  approval  of  a  new
drug;

● A determination by the FDA within 60 days of its receipt of an NDA to accept and file the NDA for review; Satisfactory completion of a potential FDA pre-approval
inspection of the manufacturing facility or facilities where the drug is produced to assess compliance with cGMP requirements to assure that the facilities, methods
and controls are adequate to preserve the drug’s identity, strength, quality and purity;

●

●

Potential FDA audit of the non-clinical and/or clinical trial sites that generated the data in support of the NDA;
and

Payment of applicable  user  fees  and  FDA  review  and  approval  of  the  NDA,  including  consideration  of  the  views  of  any  FDA  advisory  committee,  prior  to  any
commercial marketing or sale of the drug in the United States.

The  data  required  to  support  an  NDA  are  generated  in  two  distinct  development  stages:  nonclinical  and  clinical.  For  NCEs,  the  nonclinical  development  stage  generally
involves  synthesizing  the  active  component,  developing  the  formulation  and  determining  the  manufacturing  process,  as  well  as  carrying  out  non-human  toxicology,
pharmacology and drug metabolism studies in the laboratory, which support subsequent clinical testing. Nonclinical tests include laboratory evaluation of product chemistry,
formulation, stability and toxicity, as well as animal studies to assess the characteristics and potential safety and efficacy of the product. The conduct of the nonclinical tests
must comply with federal laws and regulations, including, for animal studies, the Animal Welfare Act and cGLP. The sponsor must submit the results of the non-clinical tests,
together with manufacturing information, analytical data, any available clinical data or literature and a proposed clinical protocol, to the FDA as part of the IND.

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An IND is a request for authorization from the FDA to administer an investigational drug product to humans. Some non-clinical testing may continue even after the IND is
submitted, but an IND must become effective before human clinical trials may begin. The central focus of an IND submission is on the general investigational plan and the
protocols for human trials. The IND automatically becomes effective 30 days after receipt by the FDA, unless the FDA raises concerns or questions regarding the proposed
clinical trials, including whether subjects will be exposed to unreasonable health risks, and places the IND on clinical hold within that 30-day time period. In such a case, the
IND sponsor and the FDA must resolve any outstanding concerns before the clinical trial can begin. The FDA may also impose clinical holds on a drug candidate at any time
before or during clinical trials due to safety concerns or non- compliance. Accordingly, we cannot be sure that submission of an IND will result in the FDA allowing clinical
trials to begin, or that, once begun, issues will not arise that could cause the trial to be suspended or terminated.

The clinical stage of development involves the administration of the drug candidate to healthy volunteers or to patients with the disease or condition being studied under the
supervision of qualified investigators, generally physicians not employed by or under the trial sponsor’s control. Clinical trials must be conducted in accordance with cGCPs,
which  include  the  requirement  that  all  research  subjects  provide  their  informed  consent  for  their  participation  in  any  given  clinical  trial.  Clinical  trials  are  conducted  under
protocols describing, among other details, the objectives of the clinical trial, dosing procedures, subject selection and exclusion criteria, and the parameters to be used to monitor
subject safety and assess efficacy. Each protocol, and any subsequent amendments to the protocol, must be submitted to the FDA as part of the IND. Further, each clinical trial
must be reviewed and approved by an IRB at or servicing each institution at which the clinical trial will be conducted. An IRB is charged with protecting the welfare and rights
of trial participants, and considers such items as whether the risks to individuals participating in the clinical trials are minimized and are reasonable in relation to anticipated
benefits. The IRB also approves the informed consent form that must be provided to each clinical trial subject or his or her legal representative and must monitor the clinical
trial until completed. There are also requirements governing the reporting of ongoing clinical trials and completed clinical trial results to public registries.

A sponsor who wishes to conduct a clinical trial outside the U.S. may, but need not, obtain FDA authorization to conduct the clinical trial under an IND. If a foreign clinical trial
is not conducted under an IND, the sponsor may submit data from the clinical trial to the FDA in support of an NDA so long as the clinical trial is conducted in compliance with
cGCP, including review and approval by an independent ethics committee and compliance with informed consent principles, and FDA is able to validate the data from the study
through an onsite inspection if deemed necessary.

Clinical Trials

Clinical trials are generally conducted in three phases that may overlap, known as Phase 1, Phase 2 and Phase 3 clinical trials.

●

●

●

Phase  1  clinical  trials  generally  involve  a  small  number  of  healthy  volunteers  who  are  initially  exposed  to  a  single  dose  and  then  multiple  doses  of  the  product
candidate. The primary purpose of these clinical trials is to assess the metabolism, pharmacologic action, side effect tolerability and safety of the drug.

Phase 2 clinical trials typically involve studies in disease-affected patients to determine the dose required to produce the desired benefits. At the same time, safety
and further pharmacokinetic and pharmacodynamic information is collected, as well as identification of possible adverse effects and safety risks and preliminary
evaluation of efficacy.

Phase 3 clinical trials generally involve large numbers of patients at multiple sites (typically from several hundred to several thousand subjects), and are designed to
provide the data necessary to demonstrate the effectiveness of the product for its intended use, its safety in use, and to establish the overall benefit/risk relationship
of  the  product  and  provide  an  adequate  basis  for  product  approval  and  labeling.  Phase  3  clinical  trials  may  include  comparisons  with  placebo  and/or  other
comparator treatments. The duration of treatment is often extended for drugs intended for chronic dosing to mimic the actual use of a product during marketing.

Post-approval trials, sometimes referred to as Phase 4 clinical trials, may be conducted after initial marketing approval. These trials are used to gain additional experience from
the treatment of patients in the intended therapeutic indication. In certain instances, FDA may mandate the performance of Phase 4 clinical trials as a condition of approval of an
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Progress reports detailing the results of the clinical trials must be submitted at least annually to the FDA and written IND safety reports must be submitted to the FDA and the
investigators for serious and unexpected suspected adverse events, increased rates of serious suspected adverse events, or findings from other studies or from animal or in vitro
testing that suggests a significant risk for human subjects. Phase 1, Phase 2 and Phase 3 clinical trials may not be completed successfully within any specified period, if at all.
Success in one phase does not mean similar results will be observed in subsequent phases. Each phase may involve multiple studies. The FDA, the IRB, or the sponsor may
suspend or terminate a clinical trial at any time on various grounds, including a finding that the research subjects or patients are being exposed to an unacceptable health risk.
Similarly, an IRB can suspend or terminate approval of a clinical trial at its institution if the clinical trial is not being conducted in accordance with the IRB’s requirements or if
the drug has been associated with unexpected serious harm to patients. Additionally, some clinical trials are overseen by an independent group of qualified experts organized by
the clinical trial sponsor, known as a data safety monitoring board or committee. This group provides authorization for whether or not a trial may move forward at designated
check points based on access to certain data from the trial, and may suspend a clinical trial at any time on various grounds, including a finding that the research subjects are
being  exposed  to  an  unacceptable  health  risk.  Concurrent  with  clinical  trials,  companies  usually  complete  additional  animal  studies  and  must  also  develop  additional
information about the chemistry and physical characteristics of the drug as well as finalize a process for manufacturing the product in commercial quantities in accordance with
cGMP requirements. The manufacturing process must be capable of consistently producing quality batches of the drug candidate and, among other things, we must develop
methods for testing the identity, strength, quality and purity of the final drug product. Additionally, appropriate packaging must be selected and tested and stability studies must
be conducted to demonstrate that the drug candidate does not undergo unacceptable deterioration over its shelf life.

NDA and FDA Review Process

The  results  of  nonclinical  studies  and  of  the  clinical  trials,  together  with  other  detailed  information,  including  extensive  manufacturing  information  and  information  on  the
composition of the drug and proposed labeling, are submitted to the FDA in the form of an NDA requesting approval to market the drug for one or more specified indications.
The  FDA  reviews  an  NDA  to  determine,  among  other  things,  whether  a  drug  is  safe  and  effective  for  its  intended  use  and  whether  the  product  is  being  manufactured  in
accordance with cGMP to assure and preserve the product’s identity, strength, quality and purity. FDA approval of an NDA must be obtained before a drug may be offered for
sale in the U.S.

In addition, under the Pediatric Research Equity Act (PREA) certain NDAs or supplements to an NDA must contain data to assess the safety and efficacy of the drug 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.
The FDA may grant deferrals for submission of pediatric data or full or partial waivers. Under the Best Pharmaceuticals for Children Act ( BPCA) the FDA may also issue a
Written Request asking a sponsor to conduct pediatric studies related to a particular active moiety; if the sponsor agrees and meets certain requirements, the sponsor may be
eligible to receive additional marketing exclusivity for its drug product containing such active moiety.

Under the Prescription Drug User Fee Act (PDUFA), as amended, each NDA must be accompanied by a user fee, unless subject to a waiver. The FDA adjusts the PDUFA user
fees on an annual basis. According to the FDA’s fee schedule, effective through September 30, 2019, the user fee for an application requiring clinical data, such as an NDA, is
approximately  $2.6  million.  PDUFA  also  imposes  an  annual  prescription  drug  program  fee  for  human  drugs  of  approximately  $0.3  million.  Fee  waivers  or  reductions  are
available in certain circumstances, including a waiver of the application fee for the first application filed by a small business. Additionally, no user fees are assessed on NDAs
for products designated as orphan drugs, unless the product also includes a non-orphan-designated indication.

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The FDA reviews all NDAs submitted before it accepts them for filing, and may request additional information rather than accepting an NDA for filing. The FDA must make a
decision on accepting an NDA for filing within 60 days of receipt. Once the submission is accepted for filing, the FDA begins an in-depth review of the NDA. Under the goals
and policies agreed to by the FDA under PDUFA, the FDA aims to complete its initial review of an NDA and respond to the applicant within 10 months from the filing date for
a standard NDA and, and within six months from the filing date for a priority NDA. The FDA does not always meet its PDUFA goal dates for standard and priority NDAs, and
the review process is often significantly extended by FDA requests for additional information or clarification.

After  the  NDA  submission  is  accepted  for  filing,  the  FDA  reviews  the  NDA  to  determine,  among  other  things,  whether  the  proposed  product  is  safe  and  effective  for  its
intended  use,  and  whether  the  product  is  being  manufactured  in  accordance  with  cGMP  to  assure  and  preserve  the  product’s  identity,  strength,  quality  and  purity.  Before
approving an NDA, the FDA will generally conduct a pre-approval inspection of the manufacturing facilities for the new product to determine whether the facilities comply with
cGMPs. 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. Before approving an NDA, the FDA may also audit data from clinical trials to ensure compliance
with GCP requirements and integrity of the data submitted in the NDA. Additionally, the FDA may refer applications for novel drug products or drug products which present
difficult questions of safety or efficacy to an advisory committee, typically a panel that includes clinicians and other experts, for review, evaluation and a recommendation as to
whether  the  application  should  be  approved  and  under  what  conditions.  For  example,  the  advisory  committee  may  recommend  or  the  FDA  may  determine  that  a  Risk
Evaluation and Mitigtion Strategy (REMS) program is necessary to ensure safe use of the product. The FDA is not bound by the recommendations of an advisory committee, but
it considers such recommendations carefully when making decisions. The FDA will likely re-analyze the clinical trial data, which could result in extensive discussions between
the FDA and the applicant during the review process. The review and evaluation process for an NDA by the FDA is extensive and time consuming and may take longer than
originally planned to complete, and we may not receive a timely approval, if at all.

After the FDA evaluates an NDA, it may issue an approval letter or a Complete Response Letter. An approval letter authorizes commercial marketing of the drug with specific
prescribing information for specific indications. A Complete Response Letter indicates that the review cycle of the application is complete and the application is not ready for
approval. A  Complete  Response  Letter  usually  describes  all  of  the  specific  deficiencies  in  the  NDA  identified  by  the  FDA.  The  Complete  Response  Letter  may  require
additional clinical data and/or one or more additional pivotal Phase 3 clinical trials, and/or other significant and time-consuming requirements related to clinical trials, non-
clinical studies or manufacturing. If a Complete Response Letter is issued, the applicant may either resubmit the NDA, addressing all of the deficiencies identified in the letter,
or withdraw the application. Even if such additional data and information are submitted, the FDA may ultimately decide that the NDA does not satisfy the criteria for approval.
Data obtained from clinical trials are not always conclusive, and the FDA may interpret data differently than we interpret the same data.

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

Orphan Drug Designation

Under the Orphan Drug Act, the FDA may grant orphan designation to a drug product intended to treat a “rare disease or condition,” which is generally a disease or condition
that affects fewer than 200,000 individuals in the United States, or more than 200,000 individuals in the United States, but for which there is no reasonable expectation that the
cost of developing and making a drug product available in the United States for this type of disease or condition will be recovered from sales of the product. Orphan product
designation must be requested before submitting an NDA for the drug for the proposed rare disease or condition. After the FDA grants orphan drug designation, the common
name of the therapeutic agent and its designated orphan use are disclosed publicly by the FDA. Orphan product designation does not, by itself, convey any advantage in or
shorten the duration of the regulatory review and approval process.

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If a product that has orphan designation subsequently receives the first FDA approval for the disease or condition for which it has such designation, the product is entitled to
orphan product exclusivity, which means that the FDA may not approve any other sponsors’ applications to market the same drug for the same indication for seven years, except
in  limited  circumstances,  such  as  a  showing  of  clinical  superiority  to  the  product  with  orphan  exclusivity.  Orphan  exclusivity  operates  independently  from  other  regulatory
exclusivities and other protection against generic competition, including patents that we hold for our products. A sponsor of a product application that has received an orphan
drug  designation  may  also  be  granted  tax  incentives  for  clinical  research  undertaken  to  support  the  application.  In  addition,  the  FDA  may  coordinate  with  the  sponsor  on
research study design for an orphan drug and may exercise its discretion to grant marketing approval on the basis of more limited product safety and efficacy data than would
ordinarily be required, based on the limited size of the applicable patient population.

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 than that 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 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 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. The FDA can revoke a product’s orphan drug exclusivity under certain circumstances, including when the holder of the approved orphan drug application is
unable to assure the availability of sufficient quantities of the drug to meet patient needs. Orphan drug status in the EU has similar, but not identical, benefits.

Expedited Development and Review Programs

The FDA has several programs that are intended to expedite or facilitate the process for reviewing new drugs that are intended to treat a serious or life-threatening condition and
demonstrate the potential to address unmet medical needs for the condition and provides meaningful therapeutic benefit over existing treatments. Fast Track designation and
Breakthrough Therapy designation are two of these programs and apply to the combination of the product and the specific indication for which it is being studied. The sponsor
of a new drug or biologic may request the FDA to designate the drug as a Fast Track product at any time during the development of the product and may request the FDA to
designate  the  drug  as  a  Breakthrough  Therapy  based  on  preliminary  clinical  evidence  which  meet  the  criteria  outlined  in  the  FDA’s  programs.  Under  the  Fast  Track  or
Breakthrough Therapy expedited programs, the FDA may review sections of the marketing application on a rolling basis before the complete NDA is submitted if the sponsor
provides a schedule for the submission of the sections of the application, the FDA agrees to accept sections of the application and determines that the schedule is acceptable, and
the sponsor pays any required user fees upon submission of the first section of the application.

Any product submitted to the FDA for marketing, including under a Fast Track or Breakthrough Therapy program, may be eligible for other types of FDA programs intended to
expedite development and review, such as priority review and accelerated approval.

Any  product  is  eligible  for  priority  review  if  it  treats  a  serious  condition  and  offers  a  significant  improvement  in  the  safety  and  effectiveness  of  treatment,  diagnosis  or
prevention  compared  to  marketed  products.  Significant  improvement  may  be  shown  by  evidence  of  increased  effectiveness  in  the  treatment  of  a  condition,  elimination  or
substantial reduction of a treatment-limiting product reaction, documented enhancement of patient compliance that may lead to improvement in serious outcomes, and evidence
of safety and effectiveness in a new subpopulation. The FDA will attempt to direct additional resources to the evaluation of an application for a new drug designated for priority
review in an effort to facilitate the review, and to shorten the FDA’s goal for taking action on a marketing application from ten months to six months from the date of the NDA
filing.

A product may also be eligible for accelerated approval if the product is intended to treat a serious or life-threatening illness and provides meaningful therapeutic benefit over
existing treatments. Accelerated approval for a product means that it may be approved on the basis of adequate and well-controlled clinical trials establishing that the product
has an effect on a surrogate endpoint that is reasonably likely to predict a clinical benefit, or on the basis of an effect on a clinical endpoint other than survival or irreversible
morbidity. As  a  condition  of  approval,  the  FDA  may  require  that  a  sponsor  of  a  drug  receiving  accelerated  approval  perform  adequate  and  well-controlled  post-marketing
clinical trials. If the FDA concludes that a drug shown to be effective can be safely used only if distribution or use is restricted, it will require such post-marketing restrictions, as
it deems necessary to assure safe use of the drug, such as:

●

●

distribution restricted to certain facilities or physicians with special training or experience;
or

distribution  conditioned  on 
procedures.

the  performance  of  specified  medical

The limitations imposed would be commensurate with the specific safety concerns presented by the drug. 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,  accelerated  approval  and  Breakthrough  Therapy  designation  do  not  change  the  standards  for  approval,  but  may  expedite  the
development or approval process.

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Pediatric Trials

The  Food  and  Drug Administration  Safety  and  Innovation Act  (FDASIA)  which  was  signed  into  law  on  July  9,  2012,  amended  the  FDCA  to  require  that  a  sponsor  who  is
planning  to  submit  a  marketing  application  for  a  drug  that  includes  a  new  active  ingredient,  new  indication,  new  dosage  form,  new  dosing  regimen  or  new  route  of
administration submit an initial Pediatric Study Plan (PSP) within sixty days of an end-of-Phase 2 meeting or as may be agreed between the sponsor and FDA. The initial PSP
must include an outline of the pediatric study or studies that the sponsor plans to conduct, including study objectives and design, age groups, relevant endpoints and statistical
approach, or a justification for not including such detailed information, and any request for a deferral of pediatric assessments or a full or partial waiver of the requirement to
provide data from pediatric studies along with supporting information. FDA and the sponsor must reach agreement on the PSP. A sponsor can submit amendments to an agreed-
upon initial PSP at any time if changes to the pediatric plan need to be considered based on data collected from non-clinical studies, early phase clinical trials, and/or other
clinical development programs. The FDA, if it learns of new information, may also request that the sponsor amend the initial PSP.

Post-marketing Requirements

Following approval of a new product, a pharmaceutical company and the approved product are subject to continuing regulation by the FDA, including, among other things,
monitoring  and  recordkeeping  activities,  reporting  to  the  applicable  regulatory  authorities  of  adverse  experiences  with  the  product,  providing  the  regulatory  authorities  with
updated safety and efficacy information, product sampling and distribution requirements, and complying with promotion and advertising requirements, which include, among
others, standards for direct-to-consumer advertising, restrictions on promoting drugs for uses or in patient populations that are not described in the drug’s approved labeling
(known  as off-label use), limitations on industry-sponsored scientific and educational activities, and requirements for promotional activities involving the Internet. Although
physicians may prescribe legally available drugs for off-label uses, manufacturers may not market or promote such off-label uses. Prescription drug promotional materials must
be submitted to the FDA in conjunction with their first use. Further, if there are any modifications to the drug, including changes in indications, labeling, or manufacturing
processes  or  facilities,  the  applicant  may  be  required  to  submit  and  obtain  FDA  approval  of  a  new  NDA  or  NDA  supplement,  which  may  require  the  applicant  to  develop
additional  data  or  conduct  additional  non-clinical  studies  and  clinical  trials. As  with  new  NDAs,  the  review  process  is  often  significantly  extended  by  FDA  requests  for
additional information or clarification. Any distribution of prescription drug products and pharmaceutical samples must comply with the U.S. Prescription Drug Marketing Act
(the PDMA) and the Drug Supply Chain Security Act (DSCSA).

FDA regulations also require that approved products be manufactured in specific approved facilities and in accordance with cGMP. We rely, and expect to continue to rely, on
third  parties  for  the  production  of  clinical  and  commercial  quantities  of  our  products  in  accordance  with  cGMP  regulations.  NDA  holders  using  contract  manufacturers,
laboratories  or  packagers  are  responsible  for  the  selection  and  monitoring  of  qualified  firms,  and,  in  certain  circumstances,  qualified  suppliers  to  these  firms.  These
manufacturers must comply with cGMP regulations that require, among other things, quality control and quality assurance as well as the corresponding maintenance of records
and documentation and the obligation to investigate and correct any deviations from cGMP. Drug manufacturers and other entities involved in the manufacture and distribution
of approved drugs 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 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. The discovery of violative conditions, including failure to conform to cGMP, could result in enforcement actions that interrupt the
operation of any such facilities or the ability to distribute products manufactured, processed or tested by them. Discovery of problems with a product after approval may result in
restrictions on a product, manufacturer, or holder of an approved NDA, including, among other things, recall or withdrawal of the product from the market.

Discovery  of  previously  unknown  problems  with  a  product  or  the  failure  to  comply  with  applicable  FDA  requirements  can  have  negative  consequences,  including  adverse
publicity, administrative enforcement, warning or untitled letters from the FDA, mandated corrective advertising or communications with doctors, and civil penalties or criminal
prosecution, among others. Newly discovered or developed safety or effectiveness data may require changes to a product’s approved labeling, including the addition of new
warnings and contraindications, and also may require the implementation of other risk management measures. Also, new government requirements, including those resulting
from new legislation, may be established, or the FDA’s policies may change, which could delay or prevent regulatory approval of our products under development.

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Other Regulatory Matters

Manufacturing,  sales,  promotion  and  other  activities  following  product  approval  are  also  subject  to  regulation  by  numerous  regulatory  authorities  in  addition  to  the  FDA,
including,  in  the  U.S.,  the  Department  of  Health  and  Human  Services;  the  Department  of  Justice;  the  DEA;  the  Consumer  Product  Safety  Commission;  the  Federal  Trade
Commission; the Occupational Safety and Health Administration; the Environmental Protection Agency; and state and local governments.

In  the  U.S.,  a  drug  product  approved  by  the  FDA  may  also  be  subject  to  regulation  under  the  Controlled  Substances  Act  (CSA)  as  a  controlled  substance.  The  CSA  is
administered  by  the  DEA  and  establishes,  among  other  things,  certain  registration,  security,  recordkeeping,  reporting,  import,  export  and  other  requirements  for  controlled
substances. The CSA classifies controlled substances into five schedules: Schedule I, II, III, IV or V. FDA approved pharmaceutical products may be listed in Schedule II, III,
IV or V, with Schedule II substances considered to present the highest potential for abuse or dependence and Schedule V substances the lowest relative risk of abuse among
such substances. An approved drug product or drug candidate that has not yet been approved by the FDA may be subject to scheduling as a controlled substance under the
CSA, depending on the drug’s potential for abuse. For a drug approved by the FDA and determined to require control under the CSA, the CSA requires the DEA to issue an
interim  final  order  scheduling  the  drug  within  90  days  after  the  FDA  approves  the  drug  and  the  DEA  receives  a  scientific  and  medical  evaluation  and  scheduling
recommendation from the Department of Health and Human Services, after it has been completed by FDA. We do not expect FDA to recommend scheduling of any of our
product candidates as a controlled substance, if approved.

In the U.S., arrangements and interactions with health care professionals, third-party payors, patients and others will expose us to broadly applicable anti-fraud and abuse, anti-
kickback,  false  claims  and  other  health  care  laws  and  regulations.  These  broadly  applicable  laws  and  regulations  may  constrain  the  business  or  financial  arrangements  or
relationships  through  which  we  sell,  market  and  distribute  our  products,  if  and  when  we  obtain  marketing  approval.  In  the  U.S.,  federal  and  state  health  care  laws  and
regulations that may affect our operations include:

●

●

The  federal Anti-Kickback  Statute,  which  makes  it  illegal  for  any  person,  including  a  company  marketing  a  prescription  drug  (or  a  party  acting  on  its  behalf)  to
knowingly  and  willfully  solicit,  receive,  offer,  or  pay  any  remuneration  (including  any  kickback,  bribe  or  rebate),  directly  or  indirectly,  in  cash  or  in  kind,  that  is
intended to induce or reward the referral of an individual or purchase, lease or order, or the arranging for or recommending the purchase or order, of a particular item or
service, for which payment may be made in whole or in part under a federal healthcare program, such as Medicare or Medicaid. This statute has been interpreted to apply
to arrangements between pharmaceutical companies on one hand and prescribers, patients, purchasers and formulary managers on the other. Liability under the Anti-
Kickback Statute may be established without proving actual knowledge of the statute or specific intent to violate it. In addition, the government may assert that a claim
including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the federal civil False
Claims Act. Although there are a number of statutory exemptions and regulatory safe harbors to the federal Anti-Kickback Statute protecting certain common business
arrangements and activities from prosecution or regulatory sanctions, the exemptions and safe harbors are drawn narrowly. Practices that involve remuneration to those
who prescribe, purchase, or recommend pharmaceutical and biological products, including certain discounts, or engaging such individuals as consultants, advisors, or
speakers, may be subject to scrutiny if they do not fit squarely within an exemption or safe harbor. Our practices may not in all cases meet all of the criteria for safe
harbor  protection  from  anti-kickback  liability.  Moreover,  there  are  no  safe  harbors  for  many  common  practices,  such  as  educational  and  research  grants,  charitable
donations, product support and patient assistance. Violations of this law are punishable by up to five years in prison, criminal fines, damages, administrative civil money
penalties, and exclusion from participation in federal healthcare programs.

The  federal  civil  False  Claims  Act,  which  prohibits  anyone  from,  among  other  things,  knowingly  presenting,  or  causing  to  be  presented  claims  for  payment  of
government funds that are false or fraudulent, or knowingly making, using, or causing to be made or used a false record or statement material to a false or fraudulent
claim or knowingly and improperly avoiding, decreasing or concealing an obligation to pay money to the federal government. Actions under the False Claims Act may
be  brought  by  the  federal  government  or  as  a  qui  tam  action  by  a  private  individual  in  the  name  of  the  government.  Many  pharmaceutical  manufacturers  have  been
investigated and have reached substantial financial settlements with the federal government under the civil False Claims Act for a variety of alleged improper activities.
The government may deem companies to have “caused” the submission of false or fraudulent claims by, for example, providing inaccurate billing or coding information
to customers or promoting a product off-label. In addition, our future activities relating to the reporting of prices used to calculate Medicaid rebate information and other
information affecting federal, state, and third-party reimbursement for our products, and the sale and marketing of our products, are subject to scrutiny under this law.
Penalties for a False Claims Act violation may include three times the actual damages sustained by the government, plus significant civil penalties for each separate false
or fraudulent claim, and the potential for exclusion from participation in federal healthcare programs.

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●

●

●

●

Numerous federal and state laws, including state security breach notification laws, state health information privacy laws, and federal and state consumer protection laws,
govern the collection, use, and disclosure and protection of health-related and other personal information. Failure to comply with these laws and regulations could result
in government enforcement actions and create liability, private litigation, or adverse publicity. In addition, we may obtain health information from third parties, such as
hospitals, healthcare professionals, and research institutions from which we or our collaborators obtain patient health information, that are subject to privacy and security
requirements  under  the  federal  Health  Insurance  Portability  and Accountability Act  of  1996,  as  amended  by  the  Health  Information  Technology  for  Economic  and
Clinical  Health Act  ( HIPAA). Although  we  are  not  directly  subject  to  the  HIPAA  information  privacy  and  security  provisions,  other  than  with  respect  to  providing
certain  employee  benefits,  we  could  potentially  be  subject  to  criminal  penalties  if  we  or  our  agents  knowingly  obtain  or  disclose  individually  identifiable  health
information maintained by a HIPAA-covered entity in a manner that is not authorized or permitted by HIPAA. In addition, HIPAA does not replace federal, state, or
other laws that may grant individuals even greater privacy protections.

The  HIPAA  fraud  provisions,  which  impose  criminal  and  civil  liability  for  knowingly  and  willfully  executing  a  scheme  to  defraud  any  healthcare  benefit  program,
including private third-party payors, and prohibit knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false, fictitious
or fraudulent statement or representation, or making or using any false writing or document knowing the same to contain any materially false fictitious or fraudulent
statement or entry, in connection with the delivery of or payment for healthcare benefits, items or services.

The  federal  Physician  Payment  Sunshine Act,  being  implemented  as  the  Open  Payments  Program,  which  requires  manufacturers  of  drugs,  devices,  biologics,  and
medical supplies for which payment is available under Medicare, Medicaid or the Children’s Health Insurance Program (with certain exceptions) to report annually to
the  Centers  for  Medicare  and  Medicaid  Services  (CMS),  the  agency  that  administers  the  Medicare  and  Medicaid  programs,  information  related  to  direct  or  indirect
payments and other transfers of value to physicians and teaching hospitals, as well as ownership and investment interests held in the company by physicians and their
immediate family members. Beginning in 2022, applicable manufacturers also will be required to report information regarding payments and transfers of value provided
to physician assistants, nurse practitioners, clinical nurse specialists, certified nurse anesthetists, and certified nurse-midwives.

Analogous state and local laws and regulations, such as state anti-kickback and false claims laws, which may apply to items or services reimbursed under Medicaid and
other state programs or, in several states, regardless of the payer. We also may become subject to other state laws that require pharmaceutical companies to comply with
the  pharmaceutical  industry’s  voluntary  compliance  guidelines  and  the  relevant  compliance  guidance  promulgated  by  the  federal  government  or  otherwise  restrict
payments that may be made to healthcare providers; state laws that restrict the ability of manufacturers to offer co-pay support to patients for certain prescription drugs;
state laws that require drug manufacturers to report information related to clinical trials, or information related to payments and other transfers of value to physicians and
other  healthcare  providers  or  marketing  expenditures;  state  laws  and  local  ordinances  that  require  identification  or  licensing  of  sales  representatives;  and  state  laws
governing the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and often are not preempted
by  HIPAA,  thus  complicating  compliance  efforts.Substantial  resources  are  necessary  to  ensure  that  our  business  arrangements  and  interactions  with  health  care
professionals, third party payors, patients and others comply with applicable health care laws and regulations. Although compliance programs can mitigate the risk of
investigation  and  prosecution  for  violations  of  these  laws,  the  risks  cannot  be  entirely  eliminated.  It  is  possible  that  governmental  authorities  will  conclude  that  our
business  practices  do  not  comply  with  current  or  future  statutes,  regulations  or  case  law,  and  if  we  are  found  to  be  in  violation  of  any  of  these  laws  or  any  other
governmental  regulations,  we  may  be  subject  to  significant  civil,  criminal  and  administrative  penalties,  imprisonment,  damages,  fines,  exclusion  from  government
funded health care programs such as Medicare and Medicaid, or the curtailment or restructuring of our operations. Any action against us for violation of these laws or
regulations, even if we successfully defend against it, could cause us to incur significant legal expenses and divert our management’s attention from the operation of our
business.

Numerous other laws may apply to our products. Pricing and rebate programs must comply with the Medicaid rebate requirements of the U.S. Omnibus Budget Reconciliation
Act  of  1990  and  more  recent  requirements  in  the  Patient  Protection  and Affordable  Care Act,  as  amended  by  the  Health  Care  and  Education  Reconciliation Act  of  2010,
collectively referred to herein as ACA. If products are made available to authorized users of the Federal Supply Schedule of the General Services Administration, additional
laws  and  requirements  apply.  Products  must  meet  applicable  child-resistant  packaging  requirements  under  the  U.S.  Poison  Prevention  Packaging Act.  Manufacturing,  sales,
promotion and other activities are also potentially subject to federal and state consumer protection and unfair competition laws.

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The handling of any controlled substances must comply with the U.S. Controlled Substances Act and Controlled Substances Import and Export Act.

The  distribution  of  pharmaceutical  products  is  subject  to  additional  requirements  and  regulations,  including  extensive  record-  keeping,  licensing,  storage  and  security
requirements intended to prevent the unauthorized sale of pharmaceutical products. The failure to comply with any of these laws or regulatory requirements subjects firms to
possible  legal  or  regulatory  action.  Depending  on  the  circumstances,  failure  to  meet  applicable  regulatory  requirements  can  result  in  criminal  prosecution,  fines  or  other
penalties, injunctions, recall or seizure of products, total or partial suspension of production, denial or withdrawal of product approvals, or refusal to allow a firm to enter into
supply contracts, including government contracts. Any action against us for violation of these laws, even if we successfully defend against it, could cause us to incur significant
legal expenses and divert our management’s attention from the operation of our business. Prohibitions or restrictions on sales or withdrawal of future products marketed by us
could materially affect our business in an adverse way.

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

European Union Drug Development

We plan to develop and commercialize our product candidates in the EU, either alone or with a collaborator. As in the U.S., in the EU, our future products also will be subject to
extensive regulatory requirements. As in the U.S., medicinal products can only be marketed if a Marketing Authorization ( MA) from the competent regulatory authorities in the
EU has been obtained.

Similar to the U.S., the various phases of nonclinical and clinical research in the EU are subject to significant regulatory controls. Although the EU Clinical Trials Directive
2001/20/EC has sought to harmonize the EU clinical trials regulatory framework, setting out common rules for the control and authorization of clinical trials in the EU, the EU
Member States have transposed and applied the provisions of the Directive in a manner that is often not uniform. This has led to variations in the rules governing the conduct of
clinical trials in the individual EU Member States. The EU legislator has, therefore, adopted Regulation (EU) No 536/2014, or the EU Clinical Trials Regulation. The new EU
Clinical Trials Regulation, which will replace the EU Clinical Trials Directive, introduces a complete overhaul of the existing regulation of clinical trials for medicinal products
in  the  EU,  including  a  new  coordinated  procedure  for  authorization  of  clinical  trials  that  is  reminiscent  of  the  mutual  recognition  procedure  for  marketing  authorization  of
medicinal products, and increased obligations on sponsors to publish clinical trial results. The Clinical Trials Regulation is expected to start to apply in late-2019 or in 2020.

Clinical trials in the EU must currently be conducted in accordance with the requirements of the EU Clinical Trials Directive and applicable good clinical practice standards, as
implemented into national legislation by EU Member States. Under the current regime, before a clinical trial can be initiated it must be approved in each EU Member State
where there is a site at which the trial is to be conducted by two distinct bodies: the National Competent Authority, or NCA, and one or more Ethics Committees ( ECs). Under
the current regime all suspected unexpected serious adverse reactions to the investigated drug that occur during the clinical trial have to be reported to the NCA and ECs of the
Member State where they occurred.

In the EU, pediatric data or an approved Pediatric Investigation Plan (PIP) or waiver, is required to have been approved by the European Medicines Agency (EMA)  prior  to
submission of a MA application to the EMA or the competent authorities of the EU Member States. In most EU countries, we are also required to have an approved PIP before
we can begin enrolling pediatric patients in a clinical trial.

European Union Drug Review and Approval and Post-marketing Requirements

In  the  European  Economic Area  (EEA)  (which  is  comprised  of  28  Member  States  of  the  EU  plus  Norway,  Iceland  and  Liechtenstein),  medicinal  products  can  only  be
commercialized  after  a  related  MA  has  been  granted. A  MA  for  medicinal  products  can  be  obtained  through  several  different  procedures.  These  are  through  a  centralized,
mutual  recognition  procedure,  decentralized  procedure,  or  national  procedure  (single  EU  Member  State).  The  centralized  procedure  allows  a  company  to  submit  a  single
application to the EMA. If a related positive opinion is provided by the EMA, the European Commission will grant a centralized MA that is valid in all EU Member States and
three of the four European Free Trade Associations (EFTA) countries (Iceland, Liechtenstein and Norway).

The Centralized Procedure is mandatory for certain types of products, such as biotechnology medicinal products, orphan medicinal products, and medicinal products containing
a  new  active  substance  indicated  for  the  treatment  of AIDS,  cancer,  neurodegenerative  disorders,  diabetes,  auto-immune  and  viral  diseases.  The  Centralized  Procedure  is
optional for products containing a new active substance that is not yet authorized in the EEA, or for products that constitute a significant therapeutic, scientific or technical
innovation or for which grant of centralized marketing authorization is in the interest of patients in the EU.

The  decentralized  authorization  procedure  permits  companies  to  file  identical  applications  for  authorization  to  several  EU  Member  States  simultaneously  for  a  medicinal
product that has not yet been authorized in any EU Member State. The competent authorities of a single EU Member State, the reference member state, is appointed to review
the application and provide an assessment report. The competent authorities of the other EU Member States, the concerned member states, are subsequently required to grant
marketing  authorization  for  their  territories  on  the  basis  of  this  assessment.  The  only  exception  to  this  is  where  an  EU  Member  State  considers  that  there  are  concerns  of
potential serious risk to public health related to authorization of the product. In these circumstances, the matter is submitted to the Heads of Medicines Agencies (CMDh) for
review. The mutual recognition procedure allows companies that have a medicinal product already authorized in one EU Member State to apply for this authorization to be
recognized by the competent authorities in other EU Member States.

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The  maximum  timeframe  for  the  evaluation  of  a  marketing  authorization  application  in  the  EU  is  210  days,  not  including  clock  stops  during  which  applicants  respond  to
questions  from  the  competent  authority.  The  initial  marketing  authorization  granted  in  the  EU  is  valid  for  five  years.  The  authorization  may  be  renewed  and  valid  for  an
unlimited period unless the national competent authority or the European Commission decides on justified grounds to proceed with one additional five-year renewal period. The
renewal of a marketing authorization is subject to a re-evaluation of the risk-benefit balance of the product by the national competent authorities or the EMA.

The holder of an EU MA for a medicinal product must also comply with the EU’s pharmacovigilance legislation. This includes requirements to conduct pharmacovigilance, or
the assessment and monitoring of the safety of medicinal products.

Various requirements apply to the manufacturing and placing on the EU market of medicinal products. Manufacture of medicinal products in the EU requires a manufacturing
authorization. The manufacturing authorization holder must comply with various requirements set out in the applicable EU laws, regulations and guidance. These requirements
include compliance with EU cGMP standards when manufacturing medicinal products and APIs, including the manufacture of APIs outside of the EU with the intention to
import the APIs into the EU. Similarly, the distribution of medicinal products into and within the EU is subject to compliance with the applicable EU laws, regulations and
guidelines, including the requirement to hold appropriate authorizations for distribution granted by the competent authorities of the EU Member States. MA holders may be
subject  to  civil,  criminal  or  administrative  sanctions,  including  suspension  of  manufacturing  authorization,  in  case  of  non-compliance  with  the  EU  or  EU  Member  States’
requirements applicable to the manufacturing of medicinal products.

In the EU, the advertising and promotion of medicinal products are subject to EU Member States’ laws governing promotion of medicinal products, interactions with physicians,
misleading and comparative advertising and unfair commercial practices. Breaches of the rules governing the promotion of medicinal products in the EU could be penalized by
administrative measures, fines and imprisonment. These laws may further limit or restrict the advertising and promotion of medicinal products to the general public and may
also impose limitations on promotional activities with healthcare professionals.

European Union New Chemical Entity Exclusivity

In  the  EU,  innovative  medicinal  products  that  are  subject  to  marketing  authorization  on  the  basis  of  a  full  dossier  and  do  not  fall  within  the  scope  of  the  concept  of  global
marketing authorization, which prevents the same marketing authorization holder or members of the same group from obtaining separate data and market exclusivity periods for
medicinal  products  that  contain  the  same  active  substance,  qualify  for  eight  years  of  data  exclusivity  upon  marketing  authorization  and  an  additional  two  years  of  market
exclusivity.  This  data  exclusivity,  if  granted,  prevents  regulatory  authorities  in  the  EU  from  referencing  the  innovator’s  data  to  assess  a  generic  application  or  biosimilar
application for eight years from the date of authorization of the innovative product, after which a generic or biosimilar marketing authorization application can be submitted,
and the innovator’s data may be referenced. However, the generic product or biosimilar products cannot be marketed in the EU for a further two years thereafter. The overall
ten-year period may be extended for a further year to a maximum of 11 years if, during the first eight years of those ten years, the marketing authorization holder obtains an
authorization for one or more new therapeutic indications which, during the scientific evaluation prior to their authorization, are held to bring a significant clinical benefit in
comparison with existing therapies.

European Union Orphan Designation and Exclusivity

In the EU, orphan drug designations are granted by the European Commission based on a scientific opinion by the EMA’s Committee for Orphan Medicinal Products in relation
to medicinal products that are intended for the diagnosis, prevention or treatment of life-threatening or chronically debilitating conditions affecting not more than 5 in 10,000
persons in the European Union and in relation to which no satisfactory method of diagnosis, prevention, or treatment has been authorized (or the product would be a significant
benefit to those affected). Additionally, designation is granted for products intended for the diagnosis, prevention, or treatment of a life-threatening, seriously debilitating or
serious and chronic condition and when, without incentives, it is unlikely that sales of the drug in the European Union would be sufficient to justify the necessary investment in
developing the medicinal product.

Orphan medicinal products are entitled to ten years of exclusivity in all EU Member States and a range of other benefits during the development and regulatory review process.
However, marketing authorization may be granted to a similar medicinal product with the same orphan indication during the ten-year period with the consent of the marketing
authorization holder for the original orphan medicinal product or if the manufacturer of the original orphan medicinal product is unable to supply sufficient quantities of the
product. Marketing authorization may also be granted to a similar medicinal product with the same orphan indication if the similar product is deemed safer, more effective or
otherwise clinically superior to the original orphan medicinal product. The period of market exclusivity may, in addition, be reduced to six years if it can be demonstrated on the
basis of available evidence that the original orphan medicinal product is sufficiently profitable not to justify maintenance of market exclusivity.

In addition, grant of orphan designation by the European Commission also entitles the holder of this designation to financial incentives such as reduction of fees or fee waivers.
Orphan drug designation must be requested before submitting an application for marketing authorization. Orphan drug designation does not, in itself, convey any advantage in,
or shorten the duration of, the regulatory review and authorization process.

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Rest of the World Regulation

For other countries outside of the U.S. and the EU, such as countries in Eastern Europe, Latin America or Asia, the requirements governing the conduct of clinical trials, product
licensing, pricing and reimbursement vary from countr- to-country. In all cases, the clinical trials must be conducted in accordance with cGCP requirements and the applicable
regulatory requirements and the ethical principles that have their origin in the Declaration of Helsinki.

Approval  by  a  regulatory  authority  in  one  jurisdiction  does  not  guarantee  approval  by  comparable  regulatory  authorities  in  other  jurisdictions.  If  we  fail  to  comply  with
applicable foreign regulatory requirements applicable to a given country, we may not be able to obtain regulatory approval for our product candidates in such country if we
choose  to  seek  such  approval,  or  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.

Coverage and Reimbursement

U.S. Healthcare Reform

The containment of healthcare costs has become a priority of federal and state governments, and the prices of drugs have been a focus in this effort. Changes in government
legislation  or  regulation  and  changes  in  private  third-party  payors’  policies  toward  reimbursement  for  our  products,  if  successfully  developed  and  approved,  may  reduce
reimbursement  of  our  products’  costs  to  physicians,  pharmacies,  patients,  and  distributors.  The  U.S.  government,  state  legislatures  and  foreign  governments  have  shown
significant interest in implementing cost-containment programs, including price controls, restrictions on reimbursement and requirements for substitution of generic products.
Adoption of price controls and cost-containment measures, and adoption of more restrictive policies in jurisdictions with existing controls and measures, could limit our net
revenue and results for products, if any, we commercialize in the future.

The pricing and reimbursement environment for our products may change in the future and become more challenging due to, among other reasons, policies advanced by the
Trump Administration, federal agencies, new healthcare legislation passed by Congress or fiscal challenges faced by all levels of government health administration authorities.
The American Recovery and Reinvestment Act of 2009 ( ARRA), for example, allocated new federal funding to compare the effectiveness of different treatments for the same
condition. The plan for the research was published in 2012 by the Department of Health and Human Services, the Agency for Healthcare Research and Quality and the National
Institutes for Health, and periodic reports on the status of the research and related expenditures are made to Congress. Although ARRA does not mandate the use of the results
of comparative effectiveness studies for reimbursement purposes, it is not clear what effect, if any, the research will have on the sales of any products for which we receive
marketing approval or on the reimbursement policies of public and private payors. It is possible that comparative effectiveness research demonstrating benefits in a competitor’s
product could adversely affect the sales of any product for which we receive marketing approval. For example, if third-party payors find our products not to be cost-effective
compared to other available therapies, they may not cover our products after approval as a benefit under their plans or, if they do, the level of payment may not be sufficient to
allow us to sell our products on a profitable basis.

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The Affordable Care Act (ACA) is a sweeping measure intended to expand healthcare coverage within the U.S., primarily through the imposition of health insurance mandates
on employers and individuals, the provision of subsidies to eligible individuals enrolled in plans offered on the health insurance exchanges, and the expansion of the Medicaid
program. This law has substantially changed the way healthcare is financed by both governmental and private insurers and significantly impacts the pharmaceutical industry.
Changes that may affect our business include those governing enrollment in federal healthcare programs, reimbursement changes, benefits for patients within a coverage gap in
the Medicare Part D prescription drug program (commonly known as the donut hole), rules regarding prescription drug benefits under the health insurance exchanges, changes
to the Medicaid Drug Rebate program, expansion of the Public Health Service’s 340B drug pricing program, or 340B program, fraud and abuse and enforcement. These changes
have  impacted  previously  existing  government  healthcare  programs  and  have  resulted  in  the  development  of  new  programs,  including  Medicare  payment  for  performance
initiatives and improvements to the physician quality reporting system and feedback program.

One of the goals of ACA was to expand coverage for the uninsured while at the same time containing overall healthcare costs. With regard to pharmaceutical products, among
other things, the ACA expanded and increased industry rebates for drugs covered under Medicaid. The ACA also imposed new reporting requirements on drug manufacturers
for  payments  made  to  physicians  and  teaching  hospitals,  as  well  as  ownership  and  investment  interests  held  by  physicians  and  their  immediate  family  members.  Failure  to
submit required information may result in civil monetary penalties of $1,000 to $10,000 for each payment or ownership interest that is not timely, accurately, or completely
reported (annual maximum of $150,000), and $10,000 to $100,000 for each knowing failure to report (annual maximum of $1 million). The reporting requirements apply only to
manufacturers of products for which reimbursement is available under Medicare, Medicaid, or the Children’s Health Insurance Program.

Some states have elected not to expand their Medicaid programs by raising the income limit to 133% of the federal poverty level, as is permitted under the ACA. For each state
that does not choose to expand its Medicaid program, there may be fewer insured patients overall, which could impact sales of our approved products that are approved and that
we successfully commercialize, and our business and financial condition. Where Medicaid patients receive insurance coverage under any of the new options made available
through  the ACA,  the  possibility  exists  that  manufacturers  may  be  required  to  pay  Medicaid  rebates  on  drugs  used  under  these  circumstances,  a  decision  that  could  impact
manufacturer revenues. In addition, there have been delays in the implementation of key provisions of the ACA, including the excise tax on generous employer-based health
insurance plans. The implications of these delays for business and financial condition, if any, are not yet clear.

Moreover, additional legislative changes to or regulatory changes under the ACA remain possible. The Trump Administration has identified repeal and replacement of the ACA
as one of its priorities, and has altered the implementation of the ACA and related laws. In this regard, the U.S. Tax Cuts and Jobs Act of 2017, signed into law in December
2017, includes a provision repealing, effective January 1, 2019, the tax-based shared responsibility payment imposed by the ACA on certain individuals who fail to maintain
qualifying health coverage for all or part of a year that is commonly referred to as the “individual mandate.” The nature and extent of any additional legislative changes to the
ACA are uncertain at this time. In addition, in December 2018, a federal district court judge, in a challenge brought by a number of state attorneys general, found the ACA
unconstitutional in its entirety because once Congress repealed the “individual mandate” provision as part of tax reform legislation enacted in late 2017, there was no longer a
basis to rely on Congressional taxing authority to support enactment of the law. The court reasoned that the “individual mandate” was not severable from the rest of the ACA
and found the entire Act was an unconstitutional exercise of Congressional authority. While the Trump administration and CMS have both stated that the ruling will have no
immediate effect, it is unclear how this decision, subsequent appeals, if any, and other efforts to repeal and replace the ACA will impact the ACA and our business. We expect
that the ACA, as currently enacted or as it may be amended, and other healthcare reform measures that may be adopted in the future, could have a material adverse effect on our
industry generally and on our ability to commercialize our product candidates, if approved.

Other legislative changes relating to reimbursement have been adopted in the U.S. since the ACA was enacted. For example, beginning April 1, 2013, Medicare payments for all
items and services under Part A and B, including drugs and biologicals, and most payments to plans under Medicare Part D were reduced by 2% under the sequestration (i.e.,
automatic  spending  reductions)  required  by  the  Budget  Control  Act  of  2011,  or  BCA,  as  amended  by  the  American  Taxpayer  Relief  Act  of  2012.  The  BCA  requires
sequestration for most federal programs, excluding Medicaid, Social Security, and certain other programs. Subsequent legislation extended the 2% reduction to 2027 unless
additional Congressional action is taken. As long as these cuts remain in effect, they could adversely impact payment for any products we may commercialize in the future. We
expect that additional federal healthcare reform measures will be adopted in the future, any of which could limit the amounts that federal and state governments will pay for
healthcare products and services, and in turn could significantly reduce the projected value of certain development projects and reduce our profitability.

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Pharmaceutical Pricing and Reimbursement

If we are successful in developing and gaining regulatory approval for our product candidates, sales of our products will be dependent on the availability and extent of coverage
and reimbursement from third-party payors, which are increasingly reducing reimbursements for medical products and services. Decreases in third-party reimbursement for our
products or a decision by a third-party payor not to cover a product for which we received marketing approval could reduce physician usage of our products and have a material
adverse effect on our sales, results of operations and financial condition. In the United States, healthcare providers are reimbursed for covered services and products they use
through  Medicare,  Medicaid,  and  other  government  healthcare  programs,  as  well  as  through  commercial  insurance  and  managed  healthcare  organizations.  In  the  U.S.  no
uniform policy of coverage and reimbursement for drug products exists. Accordingly, decisions regarding the extent of coverage and amount of reimbursement to be provided
for any of our products will be made on a payor-by-payor basis. As a result, the coverage determination process is often a time-consuming and costly process that will require us
to provide scientific and clinical support for the use of our products to each payor separately, with no assurance that coverage and adequate reimbursement will be obtained.

If we are successful in developing and gaining regulatory approval for our product candidates, we may participate in the Medicaid Drug Rebate Program. The Medicaid Drug
Rebate  Program  and  other  governmental  programs  impose  obligations  to  report  pricing  figures  to  the  federal  government,  meaning  that  we  would  be  subject  to  these  price
reporting and other compliance obligations. Other programs impose limits on the price we will be permitted to charge certain entities for our products, if any, for which we
receive regulatory approval. Statutory and regulatory changes or other agency action regarding these programs and their requirements could negatively affect the coverage and
reimbursement by these programs of products for which we receive regulatory approval and could negatively impact our results of operations.

The Medicaid Drug Rebate Program was established by the Omnibus Budget Reconciliation Act of 1990 and amended by the Veterans Health Care Act of 1992 as well as
subsequent legislation. If we participate in the Medicaid Drug Rebate Program, we will be required to pay a rebate to each state Medicaid program for our covered outpatient
drugs that are dispensed to Medicaid beneficiaries and paid for by a state Medicaid program as a condition of having federal funds being made available to the state for our drugs
under  Medicaid  and  Medicare  Part  B.  Those  rebates  will  be  based  on  pricing  data  reported  by  us  on  a  monthly  and  quarterly  basis  to  Centers  for  Medicare  and  Medicaid
Services (CMS), previously known as the Health Care Financing Administration (HCFA) the federal agency that administers the Medicare and Medicaid programs. These data
will include the average manufacturer price and, in the case of innovator products, the best price for each drug, which, in general, represents the lowest price available from the
manufacturer to any entity in the U.S. in any pricing structure, calculated to include all sales and associated rebates, discounts, and other price concessions. The ACA made
significant  changes  to  the  Medicaid  Drug  Rebate  program,  and  CMS  issued  a  final  regulation,  which  became  effective  on April  1,  2016,  to  implement  the  changes  to  the
Medicaid Drug Rebate Program under the ACA. Our failure to comply with these price reporting and rebate payment options could negatively impact our financial results.

Federal  law  requires  that  any  company  that  participates  in  the  Medicaid  Drug  Rebate  Program  also  participate  in  the  Public  Health  Service’s  340B  drug  pricing  discount
program in order for federal funds to be available for the manufacturer’s drugs under Medicaid and Medicare Part B. The 340B drug pricing program, which is administered by
the Health Resources and Services Administration, or HRSA, requires participating manufacturers to agree to charge statutorily defined covered entities no more than the 340B
“ceiling price” for the manufacturer’s covered outpatient drugs. These 340B covered entities include a variety of community health clinics and other entities that receive health
services grants from the Public Health Service, as well as hospitals that serve a disproportionate share of low-income patients. The ACA expanded the list of covered entities to
include certain free-standing cancer hospitals, critical access hospitals, rural referral centers and sole community hospitals, but exempts “orphan drugs” from the ceiling price
requirements for these covered entities. The 340B ceiling price is calculated using a statutory formula, which is based on the average manufacturer price and rebate amount for
the covered outpatient drug as calculated under the Medicaid Drug Rebate Program, and in general, products subject to Medicaid price reporting and rebate liability are also
subject to the 340B ceiling price calculation and discount requirement. Changes to the definition of average manufacturer price and the Medicaid Drug Rebate amount under the
ACA or otherwise also could affect our 340B ceiling price calculations and negatively impact our results of operations.

HRSA  issued  a  final  regulation  regarding  the  calculation  of  the  340B  ceiling  price  and  the  imposition  of  civil  monetary  penalties  on  manufacturers  that  knowingly  and
intentionally overcharge covered entities, which became effective on January 1, 2019. It is currently unclear how HRSA will apply its enforcement authority under the new
regulation. HRSA also is implementing a ceiling price reporting requirement related to the 340B program during the first quarter of 2019, pursuant to which we are required to
report  our  340B  ceiling  prices  to  HRSA  on  a  quarterly  basis.  Implementation  of  the  civil  monetary  penalties  regulation  and  the  issuance  of  any  other  final  regulations  and
guidance could affect our obligations under the 340B program in ways we cannot anticipate. In addition, legislation may be introduced that, if passed, would further expand the
340B program to additional covered entities or would require participating manufacturers to agree to provide 340B discounted pricing on drugs used in the inpatient setting.

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Federal  law  also  requires  that  a  company  that  participates  in  the  Medicaid  Drug  Rebate  Program  report  average  sales  price  information  each  quarter  to  CMS  for  certain
categories  of  drugs  that  are  paid  under  the  Medicare  Part  B  program.  Manufacturers  calculate  the  average  sales  price  based  on  a  statutorily  defined  formula  as  well  as
regulations and interpretations of the statute by CMS. CMS uses these submissions to determine payment rates for drugs under Medicare Part B. Statutory or regulatory changes
or CMS guidance could affect the average sales price calculations for our approved products that we successfully commercialize and the resulting Medicare payment rate, and
could  negatively  impact  our  results  of  operations. Also,  the  Medicare  Part  B  drug  payment  methodology  is  subject  to  change  based  on  potential  demonstration  projects
undertaken by CMS or potential legislation enacted by Congress.

Pricing  and  rebate  calculations  vary  among  products  and  programs.  The  calculations  are  complex  and  are  often  subject  to  interpretation  by  us,  governmental  or  regulatory
agencies and the courts. The Medicaid rebate amount will be computed each quarter based on our submission to CMS of our current average manufacturer prices and best prices
for the quarter. If we participate in the Medicaid Drug Rebate Program and become aware that our reporting for a prior quarter was incorrect, or has changed as a result of
recalculation of the pricing data, we are obligated to resubmit the corrected data for a period not to exceed 12 quarters from the quarter in which the data originally were due.
Such restatements and recalculations would increase our costs for complying with the laws and regulations governing the Medicaid Drug Rebate Program. Any corrections to
our rebate calculations could result in an overage or underage in our rebate liability for past quarters, depending on the nature of the correction. Price recalculations also may
affect the ceiling price at which we are required to offer our products to certain covered entities, such as safety-net providers, under the 340B drug pricing program.

If we participate in the Medicaid Drug Rebate Program and consequently the 340B drug pricing program, we could be held liable for errors associated with our submission of
pricing data. Civil monetary penalties can be applied if we are found to have made a misrepresentation in the reporting of our average sales price, or if we are found to have
charged 340B covered entities more than the statutorily mandated ceiling price In addition to retroactive rebates and the potential for 340B program refunds, if we are found to
have knowingly submitted false average manufacturer price or best price information to the government, we may be liable for significant civil monetary penalties per item of
false information. Our failure to submit monthly/quarterly average manufacturer price and best price data on a timely basis could result in a significant civil monetary penalty
per day for each day the information is late beyond the due date. Such failure also could be grounds for CMS to terminate our Medicaid drug rebate agreement, pursuant to
which we will participate in the Medicaid program. In the event that CMS terminates our rebate agreement, no federal payments would be available under Medicaid or Medicare
Part B for our covered outpatient drugs.

CMS  and  the  Office  of  the  Inspector  General  have  pursued  manufacturers  that  were  alleged  to  have  failed  to  report  these  data  to  the  government  in  a  timely  manner.
Governmental  agencies  may  also  make  changes  in  program  interpretations,  requirements  or  conditions  of  participation,  some  of  which  may  have  implications  for  amounts
previously  estimated  or  paid.  If  we  participate  in  the  Medicaid  Drug  Rebate  Program  and  consequently  the  340B  drug  pricing  program,  we  cannot  assure  you  that  our
submissions will not be found by CMS to be incomplete or incorrect.

In order to be eligible to have our products paid for with federal funds under the Medicaid and Medicare Part B programs and purchased by the Department of Veterans Affairs
(VA), Department of Defense (DoD), Public Health Service, and Coast Guard (the Big Four agencies) and certain federal grantees, we will be required to participate in the VA
Federal Supply Schedule (FSS) pricing program, established under Section 603 of the Veterans Health Care Act of 1992. Under this program, we will be obligated to make our
“covered” drugs (i.e., innovator drugs and biologics) available for procurement on an FSS contract and charge a price to the Big Four agencies that is no higher than the Federal
Ceiling Price (FCP), which is a price calculated pursuant to a statutory formula. The FCP is derived from a calculated price point called the “non-federal average manufacturer
price” (Non-FAMP),  which  we  will  be  required  to  calculate  and  report  to  the  VA  on  a  quarterly  and  annual  basis.  Pursuant  to  applicable  law,  knowing  provision  of  false
information in connection with a Non-FAMP filing can subject a manufacturer to significant civil monetary penalties for each item of false information. The FSS contract also
contains extensive disclosure and certification requirements. In addition, Section 703 of the National Defense Authorization Act for FY 2008, will require us to pay quarterly
rebates  to  DoD  on  utilization  of  covered  drugs  that  are  dispensed  through  DoD’s  Tricare  network  pharmacies  to  Tricare  beneficiaries.  The  rebates  are  calculated  as  the
difference between the annual Non-FAMP and FCP for the calendar year that the product was dispensed. If we overcharge the government in connection with the FSS contract
or Tricare Retail Pharmacy Rebate Program, whether due to a misstated FCP or otherwise, we will be required to refund the difference to the government. Failure to make
necessary disclosures and/or to identify contract overcharges can result in allegations against us under the False Claims Act and other laws and regulations. Unexpected refunds
to the government, and any response to government investigation or enforcement action, would be expensive and time-consuming, and could have a material adverse effect on
our business, financial condition, results of operations and growth prospects.

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In addition, in many foreign countries, the proposed pricing for a drug must be approved before it may be lawfully marketed. The requirements governing drug pricing vary
widely from country to country. For example, the EU Member States have the power to restrict the range of medicinal products for which their national health insurance systems
provide reimbursement and to control the prices of medicinal products for human use. An EU Member State may approve a specific price for the medicinal product or it may
instead adopt a system of direct or indirect controls on the profitability of the company placing the medicinal product on the market. There can be no assurance that any country
that  has  price  controls  or  reimbursement  limitations  for  pharmaceutical  products  will  allow  favorable  reimbursement  and  pricing  arrangements  for  any  of  our  products,  if
approved. Historically, products launched in the EU do not follow price structures of the United States, and generally prices tend to be significantly lower.

In  various  EU  Member  States,  we  expect  to  be  subject  to  continuous  cost-cutting  measures,  such  as  lower  maximum  prices,  lower  or  lack  of  reimbursement  coverage  and
incentives to use cheaper, usually generic, products as an alternative. Health Technology Assessment, or HTA, of medicinal products is becoming an increasingly common part
of the pricing and reimbursement procedures in some EU Member States, including countries representing major markets. The HTA process, which is governed by the national
laws of these countries, is the procedure according to which the assessment of the public health impact, therapeutic impact and the economic and societal impact of use of a
given  medicinal  product  in  the  national  healthcare  systems  of  the  individual  country  is  conducted.  The  outcome  of  HTA  regarding  specific  medicinal  products  will  often
influence the pricing and reimbursement status granted to these medicinal products by the competent authorities of individual EU Member States. On January 31, 2018, the
European Commission adopted a proposal for a regulation on health technologies assessment. This legislative proposal is intended to boost cooperation among EU Member
States in assessing health technologies, including new medicinal products, and providing the basis for cooperation at the EU level for joint clinical assessments in these areas.
The proposal provides that EU Member States will be able to use common HTA tools, methodologies, and procedures across the EU,  working  together  in  four  main  areas,
including joint clinical assessment of the innovative health technologies with the most potential impact for patients, joint scientific consultations whereby developers can seek
advice  from  HTA  authorities,  identification  of  emerging  health  technologies  to  identify  promising  technologies  early,  and  continuing  voluntary  cooperation  in  other  areas.
Individual EU Member States will continue to be responsible for assessing non-clinical (e.g., economic, social, ethical) aspects of health technology, and making decisions on
pricing  and  reimbursement.  The  European  Commission  has  stated  that  the  role  of  the  draft  HTA  regulation  is  not  to  influence  pricing  and  reimbursement  decisions  in  the
individual EU Member States. However, this consequence cannot be excluded.

Stem Cell Technology - United States

With respect to our stem cell research and development in the U.S., the U.S. government has established requirements and procedures relating to the isolation and derivation of
certain stem cell lines and the availability of federal funds for research and development programs involving those lines. All of the stem cell lines that we are using were either
isolated under procedures that meet U.S. government requirements and are approved for funding from the U.S. government, or were isolated under procedures that meet U.S.
government requirements.

All procedures we use to obtain clinical samples, and the procedures we use to isolate hESCs, are consistent with the informed consent and ethical guidelines promulgated by
the U.S. National Academy of Science, the International Society of Stem Cell Research ( ISSCR), or the NIH. These procedures and documentation have been reviewed by an
external Stem Cell Research Oversight Committee, and all cell lines we use have been approved under one or more of these guidelines.

The U.S. government and its agencies on July 7, 2009 published guidelines for the ethical derivation of hESCs required for receiving federal funding for hESC research. Should
we seek further NIH funding for our stem cell research and development, our request would involve the use of hESC lines that meet the NIH guidelines for NIH funding. In the
U.S., the President’s Council on Bioethics monitors stem cell research, and may make recommendations from time to time that could place restrictions on the scope of research
using human embryonic or fetal tissue. Although numerous states in the U.S. are considering, or have in place, legislation relating to stem cell research, it is not yet clear what
affect, if any, state actions may have on our ability to commercialize stem cell technologies. 

VistaGen Therapeutics. Inc., a California corporation, dba VistaStem Therapeutics ( VistaStem), is our wholly-owned subsidiary and has a wholly-owned subsidiary, Artemis
Neuroscience, Inc., a corporation incorporated pursuant to the laws of the State of Maryland. The operations of VistaStem, and its wholly owned subsidiary are managed by our
senior management team based in South San Francisco, California.

Subsidiaries and Inter-Corporate Relationships

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Corporate History

VistaGen Therapeutics, Inc., a California corporation incorporated on May 26, 1998, dba VistaStem, is our wholly-owned subsidiary. Excaliber Enterprises, Ltd. ( Excaliber), a
publicly-held company (formerly OTCBB: EXCA) was incorporated under the laws of the State of Nevada on October 6, 2005. Pursuant to a strategic merger transaction on
May  11,  2011,  Excaliber  acquired  all  outstanding  shares  of  VistaStem  in  exchange  for  341,823  shares  of  our  common  stock  and  assumed  all  of  VistaStem’s  pre-Merger
obligations (the Merger). Shortly after the Merger, Excaliber’s name was changed to “VistaGen Therapeutics, Inc.” (a Nevada corporation).

VistaStem,  as  the  accounting  acquirer  in  the  Merger,  recorded  the  Merger  as  the  issuance  of  common  stock  for  the  net  monetary  assets  of  Excaliber,  accompanied  by  a
recapitalization.  The accounting treatment for the Merger was identical to that resulting from a reverse acquisition, except that we recorded no goodwill or other intangible
assets. A total of 78,450 shares of our common stock, representing the shares held by stockholders of Excaliber immediately prior to the Merger are reflected as outstanding for
all periods presented in the Consolidated Financial Statements of the Company included in Item 8 of this Annual Report. Additionally, the Consolidated Balance Sheets reflect
the $0.001 par value of Excaliber’s common stock.

The  Consolidated  Financial  Statements  included  in  Item  8  of  this Annual  Report  represent  the  activity  of  VistaStem  from  May  26,  1998,  and  the  consolidated  activity  of
VistaStem and Excaliber (now VistaGen Therapeutics, Inc., a Nevada corporation), from May 11, 2011 (the date of the Merger) through March 31, 2019. The Consolidated
Financial  Statements  also  include  the  accounts  of  VistaStem’s  two  inactive  wholly-owned  subsidiaries, Artemis  Neuroscience,  Inc.,  a  Maryland  corporation  ( Artemis),  and
VistaStem Canada, Inc., a corporation organized under the laws of Ontario, Canada (VistaStem Canada).

Employees

As of June 24, 2019, we employed nine full-time employees, four of whom have doctorate degrees. Five full-time employees work in research and development and laboratory
support  services  and  four  full-time  employees  work  in  general  and  administrative  roles.  Staffing  for  all  other  functional  areas  is  achieved  through  our  diverse  network  of
strategic relationships with CROs, CDMOs, and other third-party service providers and consultants, each of whom provides services on a real-time, as-needed basis, including
human  resources  and  payroll,  information  technology,  facilities,  legal,  investor  and  public  relations,  regulatory  affairs  and  FDA  program  management  to  complement  our
internal resources in these areas.

We  have  never  had  a  work  stoppage,  and  none  of  our  employees  is  represented  by  a  labor  organization  or  under  any  collective  bargaining  agreement.  We  consider  our
employee relations to be good.

We lease our office and laboratory space, which consists of approximately 10,900 square feet located in South San Francisco, California, under a lease expiring on July 31,
2022.  

Facilities

None.

Legal Proceedings

Environmental Regulation

Our business does not require us to comply with any extraordinary environmental regulations.

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 Item 1A.  Risk Factors

Investing in our securities involves a high degree of risk. You should consider carefully the risks and uncertainties described below, together with all other information in this
Annual  Report  before  investing  in  our  securities.    The  risks  described  below  are  not  the  only  risks  facing  our  Company.    Additional  risks  and  uncertainties  not  currently
known to us or that we currently deem to be immaterial may also materially adversely affect our business, financial condition and/or operating results. If any of the following
risks are realized, our business, financial condition and/or operating results could be materially and adversely affected.

Risks Related to Product Development, Regulatory Approval and Commercialization

We  depend  heavily  on  the  success  of  one  or  more  of  our  current  drug  candidates  and  we  cannot  be  certain  that  we  will  be  able  to  obtain  regulatory  approval  for,  or
successfully commercialize any of our product candidates.

We currently have no drug products for sale and may never be able to develop and commercialize marketable drug products. Our business currently depends heavily on the
successful  development,  regulatory  approval  and  commercialization  of  one  or  more  of  our  current  drug  candidates,  as  well  as,  but  to  a  more  limited  extent,  our  ability  to
acquire, license or produce, develop and commercialize additional product candidates. Each of our current drug candidates will require substantial additional nonclinical and
clinical development and regulatory approval before any of them may be commercialized, and there can be no assurance that any of them will ever achieve regulatory approval.
Any DR NCE we produce will require substantial nonclinical development, all phases of clinical development, and regulatory approval before it may be commercialized. The
nonclinical and clinical development of our product candidates are, and the manufacturing and marketing of our product candidates will be, subject to extensive and rigorous
review and regulation by numerous government authorities in the U.S. and in other countries where we intend to test and, if approved, market any product candidate. Before
obtaining  regulatory  approvals  for  the  commercial  sale  of  any  product  candidate,  we  must  demonstrate  through  numerous  nonclinical  and  clinical  studies  that  the  product
candidate  is  safe  and  effective  for  use  in  each  target  indication.  Research  and  development  of  product  candidates  in  the  pharmaceutical  industry  is  a  long,  expensive  and
uncertain  process,  and  delay  or  failure  can  occur  at  any  stage  of  any  of  nonclinical  or  clinical  studies.  This  process  takes  many  years  and  may  also  include  post-marketing
studies, surveillance obligations and drug safety programs, which would require the expenditure of substantial resources beyond the proceeds we have raised to date. Of the
large  number  of  drug  candidates  in  development  in  the  U.S.,  only  a  small  percentage  will  successfully  complete  the  required  FDA  regulatory  approval  process  and  will  be
commercialized. Accordingly, we cannot assure you that any of our current drug candidates or any future product candidates will be successfully developed or commercialized
in the U.S. or any market outside the U.S..

We are not permitted to market our product candidates in the U.S. until we receive approval of a NDA from the FDA, or in any foreign countries until we receive the requisite
approval from such countries. Obtaining FDA approval of a NDA is a complex, lengthy, expensive and uncertain process. The FDA may refuse to permit the filing of our NDA,
delay, limit or deny approval of a NDA for many reasons, including, among others:

● if we submit a NDA and it is reviewed by a FDA advisory committee, the FDA may have difficulties scheduling an advisory committee meeting in a timely manner or the
advisory committee may recommend against approval of our application or may recommend that the FDA require, as a condition of approval, additional nonclinical or
clinical studies, limitations on approved labeling or distribution and use restrictions;

● a FDA advisory committee may recommend, or the FDA may require, a REMS safety program as a condition of approval or post-approval;

● a FDA advisory committee or the FDA or applicable regulatory agency may determine that there is insufficient evidence of overall effectiveness or safety in a NDA and

require additional clinical studies;

● the FDA or the applicable foreign regulatory agency may determine that the manufacturing processes or facilities of third-party contract manufacturers with which we

contract do not conform to applicable requirements, including current Good Manufacturing Practices (cGMPs); or

● the FDA or applicable foreign regulatory agency may change its approval policies or adopt new regulations.

Any of these factors, many of which are beyond our control, could jeopardize our ability to obtain regulatory approval for and successfully commercialize any current or future
drug product candidate we may develop. Any such setback in our pursuit of regulatory approval for any product candidate would have a material adverse effect on our business
and prospects.

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In addition, we anticipate that certain of our product candidates, including PH94B and PH10, will be subject to regulation as combination products, which means that they are
composed of both a drug product and device product. If marketed individually, each component would be subject to different regulatory pathways and reviewed by different
centers within the FDA. Our product candidates that are considered to be drug-device combination products will require review and coordination by FDA’s drug and device
centers prior to approval, which may delay approval. A combination product with a drug primary mode of action generally would be reviewed and approved pursuant to the
drug approval processes under the Federal Food, Drug and Cosmetic Act of 1938. In reviewing the NDA application for such a product, however, FDA reviewers in the drug
center could consult with their counterparts in the device center to ensure that the device component of the combination product met applicable requirements regarding safety,
effectiveness, durability and performance. Under FDA regulations, combination products are subject to cGMP requirements applicable to both drugs and devices, including
the  Quality  System  (QS)  regulations  applicable  to  medical  devices.  Problems  associated  with  the  device  component  of  the  combination  product  candidate  may  delay  or
prevent approval.

We have been granted Fast Track designation from the FDA for development of AV-101 for the adjunctive treatment of MDD and for the treatment of NP. However, these
designations may not actually lead to faster development or regulatory review or approval processes for AV-101. Further, there is no guarantee the FDA will grant Fast
Track designation for AV-101 as a treatment option for other CNS indications or for any of our other product candidates in the future.

The Fast Track designation is a program offered by the FDA, pursuant to certain mandates under the FDA Modernization Act of 1997, designed to facilitate drug development
and to expedite the review of new drugs that are intended to treat serious or life threatening conditions. Compounds selected must demonstrate the potential to address unmet
medical needs. The FDA’s Fast Track designation allows for close and frequent interaction with the FDA. A designated Fast Track drug may also be considered for priority
review  with  a  shortened  review  time,  rolling  submission,  and  accelerated  approval  if  applicable.  The  designation  does  not,  however,  guarantee  FDA  approval  or  expedited
approval of any application for the product candidate.

In December 2017, the FDA granted Fast Track designation for development of AV-101 for the adjunctive (add-on) treatment of MDD in patients with an inadequate response
to current antidepressants. In September 2018, the FDA granted Fast Track designation for development of AV-101 for the treatment of NP. However, these FDA Fast Track
designations may not lead to a faster development or regulatory review or approval process for AV-101 and the FDA may withdraw Fast Track designation of AV-101 for
either or both indications if it believes that the respective designation is no longer supported by data from our clinical development programs.

In addition, we may apply for Fast Track designation for AV-101 as a treatment option for other CNS indications, and for our other product candidates. The FDA has broad
discretion whether or not to grant a Fast Track designation, and even if we believe AV-101, PH94B, PH10 and/or other product candidates may be eligible for this designation,
we cannot be sure that the review or approval will compare to conventional FDA procedures.

Results of earlier clinical trials may not be predictive of the results of later-stage clinical trials.

The results of preclinical studies and early clinical trials of AV-101, PH94B, PH10 and/or our other future product candidates, if any, including positive results, may not be
predictive of the results of later-stage clinical trials. AV-101, PH94B, PH10 or any other future product candidates in later stages of clinical development may fail to show the
desired  safety  and  efficacy  results  despite  having  progressed  through  nonclinical  studies  and  initial  clinical  trials.  Many  companies  in  the  biopharmaceutical  industry  have
suffered  significant  setbacks  in  advanced  clinical  trials  due  to  adverse  safety  profiles  or  lack  of  efficacy,  notwithstanding  promising  results  in  earlier  studies.  Similarly,  our
future clinical trial results may not be successful for these or other reasons.

Moreover,  nonclinical  and  clinical  data  are  often  susceptible  to  varying  interpretations  and  analyses,  and  many  companies  that  believed  their  product  candidates  performed
satisfactorily in nonclinical studies and clinical trials nonetheless failed to obtain FDA approval. With respect to our current product candidates, if our ELEVATE Study, any
future clinical study of AV-101, one or more of the future Phase 3 clinical trials of PH94B for SAD or a future Phase 2 clinical trial of PH10 for MDD fail(s) to produce positive
results,  the  development  timeline  and  regulatory  approval  and  commercialization  prospects  for AV-101,  PH94B,  or  PH10  and,  correspondingly,  our  business  and  financial
prospects, could be materially adversely affected.

This drug candidate development risk is heightened by any changes in planned timing or nature of clinical trials compared to completed clinical trials. As product candidates are
developed through preclinical to early- and late-stage clinical trials towards regulatory approval and commercialization, it is customary that various aspects of the development
program,  such  as  manufacturing  and  methods  of  administration,  are  altered  along  the  way  in  an  effort  to  optimize  processes  and  results.  While  these  types  of  changes  are
common and are intended to optimize the product candidates for later stage clinical trials, approval and commercialization, such changes do carry the risk that they will not
achieve these intended objectives.

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For example, the results of planned clinical trials may be adversely affected if we or any of our collaborators seek to optimize and scale-up production of a product candidate.
In such case, we will need to demonstrate comparability between the newly manufactured drug substance and/or drug product relative to the previously manufactured drug
substance and/or drug product. Demonstrating comparability may cause us to incur additional costs or delay initiation or completion of our clinical trials, including the need to
initiate a dose escalation study and, if unsuccessful, could require us to complete additional nonclinical or clinical studies of our product candidates. 

If serious adverse events or other undesirable side effects or safety concerns attributable to AV-101 are identified during the Baylor Study, other investigator-sponsored
clinical  trials,  in  our  clinical  trials  of  AV-101,  including  our  ELEVATE  study,  or  our  clinical  trials  of  PH94B  or  PH10,  it  may  adversely  affect  or  delay  our  clinical
development and commercialization of AV-101, PH94B or PH10.

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. AV-101 was previously tested by the NIMH in the NIMH Study, is currently being tested by Baylor in the Baylor Study and
may  be  subjected  to  testing  in  the  future  for  other  CNS  indications  in  additional  investigator-sponsored  clinical  trials. Although  no  treatment-related  serious  adverse  events
(SAEs) were observed in the NIMH Study, if treatment-releated SAEs or other undesirable side effects or safety concerns, or unexpected characteristics attributable to AV-101
are observed in the Baylor Study other investigator-sponsored clinical trials of AV-101, our clinical trials of AV-101, including our ELEVATE Study, or in our future clinical
trials of PH94B or PH10, it may adversely affect or delay our clinical development and commercialization of AV-101, PH94B or PH10, and the occurrence of these events
could have a material adverse effect on our business and financial prospects. Results of our future clinical trials could reveal a high and unacceptable severity and prevalence of
adverse side effects. In such an event, our trials could be suspended or terminated and the FDA or other regulatory agency could order us to cease further development of or
deny approval of our product candidates for any or all targeted indications. The drug-related side effects could affect patient recruitment or the ability of enrolled patients to
complete the trial or result in potential product liability claims.

Additionally,  if  any  of  our  product  candidates  receives  marketing  approval  and  we  or  others  later  identify  undesirable  or  unacceptable  side  effects  caused  by  these  product
candidates, a number of potentially significant negative consequences could result, including:

● 

● 

● 

● 

regulatory authorities may withdraw, suspend, or limit approvals of such product and require us to take them off the
market;

regulatory authorities may require the addition of labeling statements, specific warnings, a contraindication or field alerts to physicians and
pharmacies;

regulatory authorities may require a medication guide outlining the risks of such side effects for distribution to patients, or that we implement a REMS plan to ensure that
the benefits of the product outweigh its risks;

we may be required to change the way a product is distributed or administered, conduct additional clinical trials or change the labeling of a
product;

●            we may be required to conduct additional post-marketing studies or

surveillance;

●            we may be subject to limitations on how we may promote the

product;

●            sales of the product may decrease

significantly;

● 

we may be subject to regulatory investigations, government enforcement actions, litigation or product liability claims;
and

●            our products may become less competitive or our reputation may

suffer.

Any  of  these  events  could  prevent  us  or  any  collaborators  from  achieving  or  maintaining  market  acceptance  of  our  product  candidates  or  could  substantially  increase
commercialization costs and expenses, which in turn could delay or prevent us from generating significant revenue from the sale of our product candidates.

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Failures or delays in the commencement or completion of our planned clinical trials and nonclinical studies of AV-101, PH94B, PH10 or other our product candidates
could result in increased costs to us and could delay, prevent or limit our ability to generate revenue and continue our business.

We will need to complete our ELEVATE Study, at least two pivotal Phase 3 clinical trials, additional toxicology and other standard nonclinical and clinical safety studies, as
well as certain standard smaller clinical studies prior to the submission of any NDA for regulatory approval for AV-101 as an adjunctive treatment for MDD in patients with an
inadequate  response  to  current ADs,  or  any  other  CNS  indication.  Similarly,  we  will  need  to  complete  at  least  two  pivotal  Phase  3  clinical  studies  of  PH94B,  additional
toxicology  and  other  standard  nonclinical  and  clinical  safety  studies,  as  well  as  certain  standard  smaller  clinical  studies  prior  to  our  submission  of  an  NDA  for  regulatory
approval of PH94B as an on-demand treatment for SAD or any CNS other indication. For PH10, we will need to complete at least one additional Phase 2 clinical study, two
pivotal Phase 3 clinical trials, additional toxicology and other standard nonclinical and clinical safety studies, as well as certain standard smaller clinical studies prior to the
submission of an NDA for regulatory approval of PH10 as treatment for MDD, or any other CNS indication.Successful completion of our nonclinical and clinical trials is a
prerequisite  to  submitting  an  NDA  and,  consequently,  the  ultimate  approval  required  before  commercial  marketing  of  any  product  candidate  we  may  develop.  Except  as
disclosed herein, we do not know whether the Baylor Study, our ELEVATE Study or any of our future-planned nonclinical and clinical trials of AV-101, PH94B, PH10 or any
other product candidate will be completed on schedule, if at all, as the commencement and completion of nonclinical and clinical trials can be delayed or prevented for a number
of reasons, including, among others:

● the regulatory authority may deny permission to proceed with planned clinical trials or any other clinical trials we may initiate, or may place a planned or ongoing clinical

trial on hold;

● delays in filing or receiving approvals from regulatory authorities of additional INDs that may be required;

● negative or ambiguous results from nonclinical or clinical studies;

● delays in reaching or failing to reach agreement on acceptable terms with prospective CROs, investigators and clinical trial sites, the terms of which can be subject to

extensive negotiation and may vary significantly among different CROs, investigators and clinical trial sites;

● delays in the manufacturing of, or insufficient supply of product candidates necessary to conduct nonclinical or clinical trials, including delays in the manufacturing of

sufficient supply of drug substance or finished drug product;

● inability to manufacture or obtain clinical supplies of a product candidate meeting required quality standards;

● difficulties obtaining Institutional Review Board (IRB) approval to conduct a clinical trial at a prospective clinical site or sites; 

● challenges in recruiting and enrolling patients to participate in clinical trials, including the proximity of patients to clinical trial sites;

● eligibility criteria for a clinical trial, the nature of a clinical trial protocol, the availability of approved effective treatments for the relevant disease and competition from

other clinical trial programs for similar indications;

● severe or unexpected adverse drug-related side effects experienced by patients in a clinical trial;

● delays in validating any endpoints utilized in a clinical trial;

● the  regulatory  authority  may  disagree  with  our  clinical  trial  design  and  our  interpretation  of  data  from  prior  nonclinical  studies  or  clinical  trials,  or  may  change  the

requirements for approval even after it has reviewed and commented on the design for our clinical trials;

● reports from nonclinical or clinical testing of other CNS indications or therapies that raise safety or efficacy concerns; and

● difficulties retaining patients who have enrolled in a clinical trial but may be prone to withdraw due to rigors of the clinical trial, lack of efficacy, side effects, personal

issues or loss of interest.

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Clinical  trials  may  also  be  delayed  or  terminated  prior  to  completion  as  a  result  of  ambiguous  or  negative  interim  results.  In  addition,  a  clinical  trial  may  be  suspended  or
terminated  by  us,  the regulatory authority,  the  IRBs  at  the  sites  where  the  IRBs  are  overseeing  a  clinical  trial,  a  data  and  safety  monitoring  board  (DSMB),  overseeing  the
clinical trial at issue or other regulatory authorities due to a number of factors, including, among others:

● failure to conduct the clinical trial in accordance with regulatory requirements or approved clinical protocols;

● inspection  of  the  clinical  trial  operations  or  trial  sites  by  the  regulatory  authority  that  reveals  deficiencies  or  violations  that  require  us  to  undertake  corrective  action,

including the imposition of a clinical hold;

● unforeseen safety issues, including any that could be identified in nonclinical carcinogenicity studies, adverse side effects or lack of effectiveness;

● changes in government regulations or administrative actions;

● problems with clinical supply materials that may lead to regulatory actions; and 

● lack of adequate funding to continue nonclinical or clinical studies.

Changes  in  regulatory  requirements,  regulatory  guidance  or  unanticipated  events  during  our  nonclinical  studies  and  clinical  trials  of  AV-101,  PH94B,  PH10  or  other
product  candidates  may  occur,  which  may  result  in  changes  to  nonclinical  studies  and  clinical  trial  protocols  or  additional  nonclinical  studies  and  clinical  trial
requirements, which could result in increased costs to us and could delay our development timeline.

Changes in regulatory requirements, guidance or unanticipated events during our nonclinical studies and clinical trials of AV-101, PH94B, PH10 or other product candidates
may  force  us  to  amend  nonclinical  studies  and  clinical  trial  protocols  or  the  regulatory  authority  may  impose  additional  nonclinical  studies  and  clinical  trial  requirements.
Amendments or changes to our clinical trial protocols would require resubmission to the regulatory authority and IRBs for review and approval, which may adversely impact
the cost, timing or successful completion of clinical trials. Similarly, amendments to our nonclinical studies may adversely impact the cost, timing, or successful completion of
those nonclinical studies. If we experience delays completing, or if we terminate, any of our nonclinical studies or clinical trials, or if we are required to conduct additional
nonclinical  studies  or  clinical  trials,  the  commercial  prospects  for AV-101,  PH94B,  PH10  or  other  product  candidates  may  be  harmed  and  our  ability  to  generate  product
revenue will be delayed.

We rely, and expect that we will continue to rely, on third parties to conduct our nonclinical and clinical trials of our current product candidates and will continue to do so
for  any  other  future  product  candidates.  If  these  third  parties  do  not  successfully  carry  out  their  contractual  duties  and/or  meet  expected  deadlines,  completion  of  our
nonclinical or clinical trials and development of AV-101, PH94B, PH10 or other future product candidates may be delayed and we may not be able to obtain regulatory
approval for or commercialize AV-101, PH94B, PH10 or other future product candidates and our business could be substantially harmed.

By strategic design, we do not have the internal staff resources to independently conduct nonclinical and clinical trials of our product candidates completely on our own. We rely
on our extensive network of strategic relationships with various academic research centers, medical institutions, nonclinical and clinical investigators, contract laboratories and
other third parties, such as CROs, to assist us to conduct and complete nonclinical and clinical trials of our product candidates. We enter into agreements with third-party CROs
to provide monitors for and to manage data for our clinical trials, as well as provide other services necessary to prepare for, conduct and complete clinical trials. We rely heavily
on these and other third-parties for execution of nonclinical and clinical trials for our product candidates and we control only certain aspects of their activities. As a result, we
have less direct control over the conduct, timing and completion of these nonclinical and clinical trials and the management of data developed through nonclinical and clinical
trials than would be the case if we were relying entirely upon our own internal staff resources. Communicating with outside parties can also be challenging, potentially leading
to mistakes as well as difficulties in coordinating activities. Outside parties may:

● have staffing difficulties and/or undertake obligations beyond their anticipated capabilities and resources;

● fail to comply with contractual obligations;

● experience regulatory compliance issues;

● undergo changes in priorities or become financially distressed; or

● form relationships with other entities, some of which may be our competitors.

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These  factors  may  materially  adversely  affect  the  willingness  or  ability  of  third  parties  to  conduct  our  nonclinical  and  clinical  trials  and  may  subject  us  to  unexpected  cost
increases  that  are  beyond  our  control.  Nevertheless,  we  are  responsible  for  ensuring  that  each  of  our  nonclinical  studies  and  clinical  trials  is  conducted  and  completed  in
accordance with the applicable protocol, legal, regulatory and scientific requirements and standards, and our reliance on CROs, Baylor or other independent investigators does
not relieve us of our regulatory responsibilities. We and our CROs, Baylor and any investigator in an investigator-sponsored study are required to comply with regulations and
guidelines, including current Good Clinical Practice regulations (cGCPs) for conducting, monitoring, recording and reporting the results of clinical trials to ensure that the data
and results are scientifically credible and accurate, and that the trial patients are adequately informed of the potential risks of participating in clinical trials. These regulations are
enforced  by  the  FDA,  the  Competent Authorities  of  the  Member  States  of  the  European  Economic Area  and  comparable  foreign  regulatory  authorities  for  any  products  in
clinical development. The FDA enforces cGCP regulations through periodic inspections of clinical trial sponsors, principal investigators and trial sites. If we, any of our CROs
or  any  of  our  third-party  collaborators  fail  to  comply  with  applicable  cGCPs,  the  clinical  data  generated  in  clinical  trials  involving  our  product  candidates  may  be  deemed
unreliable and the FDA or comparable foreign regulatory authorities may require us to perform additional clinical trials before approving our marketing applications. We cannot
assure  you  that,  upon  inspection,  the  FDA  will  determine  that  any  of  our  clinical  trials  comply  with  cGCPs.  In  addition,  our  clinical  trials  must  be  conducted  with  product
candidates produced under cGMPs and will require a large number of test patients. Our failure or the failure of our CROs or other third-party collaborators to comply with these
regulations may require us to repeat clinical trials, which would delay the regulatory approval process and could also subject us to enforcement action up to and including civil
and criminal penalties.

Although  we  design  our  clinical  trials  for  our  product  candidates,  our  clinical  development  strategy  involves  having  CROs  and  other  third-party  investigators  and  medical
institutions conduct clinical trials of our product candidates. As a result, many important aspects of our drug development programs are outside of our direct control. In addition,
although CROs, or independent investigators or medical institutions, as the case may be, may not perform all of their obligations under arrangements with us or in compliance
with  applicable  regulatory  requirements,  under  certain  circumstances,  we  may  be  responsible  and  subject  to  enforcement  action  that  may  include  civil  penalties  up  to  and
including criminal prosecution for any violations of FDA laws and regulations during the conduct of clinical trials of our product candidates. If such third parties do not perform
clinical trials of our product candidates in a satisfactory manner, breach their obligations to us or fail to comply with applicable regulatory requirements, the development and
commercialization of our product candidates may be delayed or our development program materially and irreversibly harmed. In certain cases, including the Baylor Study and
other investigator-sponsored clinical studies, we cannot control the amount and timing of resources these third-parties devote to clinical trials involving our product candidates.
If we are unable to rely on nonclinical and clinical data collected by our third-party collaborators, we could be required to repeat, extend the duration of, or increase the size of
our clinical trials and this could significantly delay commercialization and require significantly greater expenditures.

If our relationships with one or more of our third-party collaborators terminates, we may not be able to enter into arrangements with alternative third-party collaborators.  If
such third-party collaborators, including our CROs, Baylor or the VA do not successfully carry out their contractual duties or obligations or meet expected deadlines, if they
need  to  be  replaced  or  if  the  quality  or  accuracy  of  the  clinical  data  they  obtain  is  compromised  due  to  their  failure  to  adhere  to  applicable  clinical  protocols,  regulatory
requirements  or  for  other  reasons,  any  clinical  trials  that  such  third-parties  are  associated  with  may  be  extended,  delayed  or  terminated,  and  we  may  not  be  able  to  obtain
regulatory approval for or successfully develop and commercialize our product candidates. As a result, we believe that our financial results and the commercial prospects for
our product candidates in the subject indication would be harmed, our costs would increase and our ability to generate revenue would be delayed.

We rely completely on third-parties to manufacture, formulate, hold and distribute supplies of our product candidates for all nonclinical and clinical studies, and we intend
to continue to rely on third parties to produce all nonclinical, clinical and commercial supplies of our product candidates in the future.

By strategic design, we do not currently have, nor do we plan to acquire or develop, internal infrastructure or technical capabilities to manufacture, formulate, hold or distribute
supplies of our product candidates, for use in nonclinical and clinical studies or commercial scale.  As a result, with respect to all of our product candidates, we rely, and will
continue to rely, completely on CMOs to manufacture API and formulate, hold and distribute final drug product. The facilities used by our CMOs to manufacture AV-101,
PH94B and PH10 API and AV-101, PH94B and PH10 final drug product are subject to a pre-approval inspection by the FDA and other comparable foreign regulatory agencies
to  assess  compliance  with  applicable  regulatory  guidelines  and  requirements,  including  cGMPs,  and  may  be  required  to  undergo  similar  inspections  by  the  FDA  or  other
comparable foreign regulatory agencies, after we submit INDs, NDAs or relevant foreign regulatory submission equivalent to the applicable regulatory agency.

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We  do  not  directly  control  the  manufacturing  process  or  the  supply  or  quality  of  materials  used  in  the  manufacturing  and  formulation  of  our  product  candidates,  and,  with
respect to all of our product candidates, we are completely dependent on our CMOs to comply with all applicable cGMPs for the manufacturing of both API and finished drug
product. If our CMOs cannot secure adequate supplies of suitable raw materials or successfully manufacture our product candidates, including AV-101, PH94B and PH10 API
and  finished  drug  product,  that  conforms  to  our  specifications  and  the  strict  regulatory  requirements  of  the  FDA  or  applicable  foreign  regulatory  agencies,  production  of
sufficient supplies of our product candidates, including AV-101, PH94B and PH10 API and finished drug product, may be delayed and our CMOs may not be able to secure
and/or maintain regulatory approval for their manufacturing facilities, or the FDA may take other actions, including the imposition of a clinical hold. In addition, we have no
direct control over our CMOs’ ability to maintain adequate quality control, quality assurance and qualified personnel. All of our CMOs are engaged with other companies to
supply and/or manufacture materials or products for such other companies, which exposes our CMOs to regulatory risks for the production of such materials and products. As a
result, failure to satisfy the regulatory requirements for the production of those materials and products may affect the regulatory clearance of our CMO’s facilities generally or
affect the timing of manufacture of AV-101, PH94B and PH10 for required or planned nonclinical and/or clinical studies. If the FDA or an applicable foreign regulatory agency
determines now or in the future that our CMOs’ facilities are noncompliant, we may need to find alternative manufacturing facilities, which would adversely impact our ability
to develop, obtain regulatory approval for or market our product candidates. Our reliance on CMOs also exposes us to the possibility that they, or third parties with access to
their facilities, will have access to and may appropriate our trade secrets or other proprietary information.

With respect to AV-101, PH94B and PH10, we do not yet have long-term supply agreements in place with our CMOs and each batch of AV-101, PH94B and PH10 is or will be
individually contracted under a separate supply agreement. If we engage new CMOs, such contractors must complete an inspection by the FDA and other applicable foreign
regulatory  agencies.  We  plan  to  continue  to  rely  upon  CMOs  and,  potentially,  collaboration  partners,  to  manufacture  research  and  development  scale,  and,  if  approved,
commercial quantities of our product candidates. Although we believe our current scale of API manufacturing for AV-101, and our contemplated scale of API manufacturing for
PH94B and PH10, and the current and projected supply of AV-101, PH94B and PH10 API and finished drug product will be adequate to support our planned nonclinical and
clinical studies of AV-101, PH94B and PH10, no assurance can be given that unanticipated supply shortages or CMO-related delays in the manufacture and formulation of AV-
101, PH94B or PH10 API and/or finished drug product will not occur in the future.

Additionally,  we  anticipate  that  PH94B  and  PH10  will  be  considered  drug-device  combination  products.  Third-party  manufacturers  may  not  be  able  to  comply  with  cGMP
requirements  applicable  to  drug/device  combination  products,  including  applicable  provisions  of  the  FDA’s  or  a  comparable  foreign  regulatory  authority’s  drug  cGMP
regulations, device cGMP requirements embodied in the Quality System Regulation (QSR) or similar regulatory requirements outside the U.S. Our failure, or the failure of our
third-party  manufacturers,  to  comply  with  applicable  regulations  could  result  in  sanctions  being  imposed  on  us,  including  clinical  holds,  fines,  injunctions,  civil  penalties,
delays, suspension or withdrawal of approvals, license revocation, seizures or recalls of product candidates, operating restrictions and criminal prosecutions, any of which could
significantly affect supplies of our product candidates. The facilities used by our CMOs to manufacture our product candidates must be approved by the FDA anf comparable
foreign  regulatory  authorities  pursuant  to  inspections  that  will  or  may  be  conducted  after  we  submit  our  NDA.  We  do  not  control  the  manufacturing  process  of,  and  are
completely dependent on, our CMO partners for compliance with cGMPs and QSRs. If our CMOs cannot successfully manufacture material that conforms to our specifications
and the strict regulatory requirements of the FDA or other comparable foreign regulatory authorities, they will not be able to secure and/or maintain regulatory approval for their
manufacturing facilities. In addition, we have no control over the ability of our contract manufacturers to maintain adequate quality control, quality assurance and qualified
personnel. If the FDA or a comparable foreign regulatory authority does not approve these facilities for the manufacture of our product candidates or if it withdraws any such
approval  in  the  future,  we  may  need  to  find  alternative  manufacturing  facilities,  which  would  significantly  impact  our  ability  to  develop,  obtain  regulatory  approval  for  or
market our product candidates, if approved. CMOs may face manufacturing or quality control problems causing drug substance production and shipment delays or a situation
where the contractor may not be able to maintain compliance with the applicable cGMP and QSR requirements. Any failure to comply with cGMP or QSR requirements or
other FDA, EMA and comparable foreign regulatory requirements could adversely affect our clinical research activities and our ability to develop our product candidates and
market our products following approval.

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Even if we receive marketing approval for AV-101, PH94B, PH10 or any other product candidate in the U.S., we may never receive regulatory approval to market AV-101,
PH94B, PH10 or any other product candidate outside of the U.S.

In order to market AV-101, PH94B, PH10 or any other product candidate outside of the U.S., we must establish and comply with the numerous and varying safety, efficacy and
other regulatory requirements of other countries. Approval procedures vary among countries and can involve additional product candidate testing and additional administrative
review periods. The time required to obtain approvals in other countries might differ from that required to obtain FDA approval. The marketing approval processes in other
countries may implicate all of the risks detailed above regarding FDA approval in the U.S. as well as other risks. In particular, in many countries outside of the U.S., products
must receive pricing and reimbursement approval before the product can be commercialized. Obtaining this approval can result in substantial delays in bringing products to
market  in  such  countries.  Marketing  approval  in  one  country  does  not  ensure  marketing  approval  in  another,  but  a  failure  or  delay  in  obtaining  marketing  approval  in  one
country may have a negative effect on the regulatory process in others. Failure to obtain marketing approval in other countries or any delay or other setback in obtaining such
approval would impair our ability to market our product candidates in such foreign markets. Any such impairment would reduce the size of our potential market, which could
have a material adverse impact on our business, results of operations and prospects.

If any of our product candidates are ultimately regulated as controlled substances, we, our CMOs, as well as future distributors, prescribers, and dispensers will be required
to  comply  with  additional  regulatory  requirements  which  could  delay  the  marketing  of  our  product  candidates,  and  increase  the  cost  and  burden  of  manufacturing,
distributing, dispensing, and prescribing our product candidates.

Before we can commercialize our product candidates in the U.S. or any market outside the U.S., the U.S. Drug Enforcement Administration (DEA) or its foreign counterpart
may need to determine whether such product candidates will be considered to be a controlled substance, taking into account the recommendation of the FDA or its foreign
counterpart, as the case may be. This may be a lengthy process that could delay our marketing of a product candidate and could potentially diminish any regulatory exclusivity
periods for which we may be eligible, which would increase the cost associated with commercializing such products and, in turn, may have an adverse impact on our results of
operations. Although  we  currently  do  not  know  whether  the  DEA  or  any  foreign  counterpart  will  consider  any  of  our  current  or  future  product  candidate  to  be  controlled
substances, we cannot yet give any assurance that such product candidates, including AV-101, PH94B and PH10 will not be regulated as controlled substances.

If any of our product candidates are regulated as controlled substances, depending on the DEA controlled substance schedule in which the product candidates are placed or that
of its foreign counterpart, we, our CMOs, and any future distributers, prescribers, and dispensers of the scheduled product candidates may be subject to significant regulatory
requirements, such as registration, security, recordkeeping, reporting, storage, distribution, importation, exportation, inventory, quota and other requirements administered by
the DEA or a foreign counterpart of the DEA as the case may be. Moreover, if any of our product candidates are regulated as controlled substances, we and our CMOs would
be subject to initial and periodic DEA inspection. If we or our CMOs are not able to obtain or maintain any necessary DEA registrations or comparable foreign registrations, we
may not be able to commercialize any product candidates that are deemed to be controlled substances or we may need to find alternative CMOs, which would take time and
cause us to incur additional costs, delaying or limit our commercialization efforts.

Because of their restrictive nature, these laws and regulations could limit commercialization of our product candidates, should they be deemed to contain controlled substances.
Failure  to  comply  with  the  applicable  controlled  substance  laws  and  regulations  can  also  result  in  administrative,  civil  or  criminal  enforcement.  The  DEA  or  its  foreign
counterparts  may  seek  civil  penalties,  refuse  to  renew  necessary  registrations,  or  initiate  administrative  proceedings  to  revoke  those  registrations.  In  some  circumstances,
violations could result in criminal proceedings or consent decrees. Individual states also independently regulate controlled substances.

If we are unable to establish sales and marketing capabilities or enter into agreements with third parties to market and sell our product candidates, we may not be able to
generate any revenue.

We do not currently have any internal resources for the sale, marketing and distribution of pharmaceutical products, and we may not create such internal capabilities in the
foreseeable future. Therefore, to market our product candidates, if approved by the FDA or any other regulatory body, we must make contractual arrangements with third parties
to perform services related to sales, marketing, managerial and other non-technical capabilities relating to the commercialization of our product candidates, or establish those
capabilities prior to market approval. If we are unable to establish adequate contractual arrangements for such sales, marketing and distribution capabilities, or if we are unable
to do so on commercially reasonable terms, or if we are unable to establish such capabilities on our own, our business, results of operations, financial condition and prospects
will be materially adversely affected.

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Even if we receive marketing approval for our product candidates, our product candidates may not achieve broad market acceptance, which would limit the revenue that
we generate from their sales.

The commercial success of our product candidates, if approved by the FDA or other applicable regulatory authorities, will depend upon the awareness and acceptance of our
product candidates among the medical community, including physicians, patients and healthcare payors. Market acceptance of our product candidates, if approved, will depend
on a number of factors, including, among others:

● the efficacy and safety of our product candidates as demonstrated in clinical trials, and, if required by any applicable regulatory authority in connection with the approval

for the applicable indications, to provide patients with incremental health benefits, as compared with other available therapies;

● limitations or warnings contained in the labeling approved for our product candidates by the FDA or other applicable regulatory authorities;

● the clinical indications for which our product candidates are approved;

● availability of alternative treatments already approved or expected to be commercially launched in the near future;

● the potential and perceived advantages of our product candidates over current treatment options or alternative treatments, including future alternative treatments;

● 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 timing of market introduction of competitive products;

● publicity concerning our products or competing products and treatments;

● pricing and cost effectiveness;

● the effectiveness of our sales and marketing strategies;

● our ability to increase awareness of our product candidates through marketing efforts;

● our ability to obtain sufficient third-party coverage or reimbursement; or

● the willingness of patients to pay out-of-pocket in the absence of third-party coverage.

If our product candidates are approved but do not achieve an adequate level of acceptance by patients, physicians and payors, we may not generate sufficient revenue from our
product candidates to become or remain profitable. Before granting reimbursement approval, healthcare payors may require us to demonstrate that our product candidates, in
addition to treating these target indications, also provide incremental health benefits to patients. Our efforts to educate the medical community and third-party payors about the
benefits of our product candidates may require significant resources and may never be successful.

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Our product candidates may cause undesirable safety concerns and side effects that could 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.

Undesirable safety concerns and side effects caused by our product candidates could cause us or regulatory authorities to interrupt, delay or halt nonclinical studies and clinical
trials and could result in a more restrictive label or the delay or denial of regulatory approval by the FDA or other regulatory authorities.

Further, clinical trials by their nature utilize a sample of potential patient populations. With a limited number of patients and limited duration of exposure, rare and severe side
effects  of  our  product  candidates  may  only  be  uncovered  with  a  significantly  larger  number  of  patients  exposed  to  the  product  candidate.  If  our  product  candidates  receive
marketing approval and we or others identify undesirable safety concerns or side effects caused by such product candidates (or any other similar products) after such approval, a
number of potentially significant negative consequences could result, including:

● regulatory authorities may withdraw or limit their approval of such product candidates;

● regulatory authorities may require the addition of labeling statements, such as a “black box” warning or a contraindication;

● we may be  required  to  change  the  way  such  product  candidates  are  distributed  or  administered,  conduct  additional  clinical  trials  or  change  the  labeling  of  the  product

candidates;

● we may be subject to regulatory investigations and government enforcement actions;

● we may decide to remove such product candidates from the marketplace;

● we could be sued and held liable for injury caused to individuals exposed to or taking our product candidates; and

● our reputation may suffer.

We believe that any of these events could prevent us from achieving or maintaining market acceptance of the affected product candidates and would substantially increase the
costs of commercializing our product candidates and significantly impact our ability to successfully commercialize our product candidates and generate revenues.

Even if we receive marketing approval for our product candidates, we may still face future development and regulatory difficulties.

Even if we receive marketing approval for our product candidates, regulatory authorities may still impose significant restrictions on our product candidates, indicated uses or
marketing  or  impose  ongoing  requirements  for  potentially  costly  post-approval  studies.  Our  product  candidates  will  also  be  subject  to  ongoing  regulatory  requirements
governing the labeling, packaging, storage and promotion of the product and record keeping and submission of safety and other post-market information. The FDA and other
regulatory authorities have significant post-marketing authority, including, for example, the authority to require labeling changes based on new safety information and to require
post-marketing studies or clinical trials to evaluate serious safety risks related to the use of a drug. The FDA and other regulatory authorities also have the authority to require, as
part of an NDA or post-approval, the submission of a REMS or comparable safety program. Any REMS or comparable safety program required by the FDA or other regulatory
authority may lead to increased costs to assure compliance with new post-approval regulatory requirements and potential requirements or restrictions on the sale of approved
products, all of which could lead to lower sales volume and revenue.

Manufacturers  of  drug  and  device  products  and  their  facilities  are  subject  to  continual  review  and  periodic  inspections  by  the  FDA  and  other  regulatory  authorities  for
compliance with cGMPs and other regulations. If we or a regulatory agency discover problems with our product candidates, such as adverse events of unanticipated severity or
frequency,  or  problems  with  the  facility  where  our  product  candidates  are  manufactured,  a  regulatory  agency  may  impose  restrictions  on  our  product  candidates,  the
manufacturer  or  us,  including  requiring  withdrawal  of  our  product  candidates  from  the  market  or  suspension  of  manufacturing.  If  we,  our  product  candidates,  or  the
manufacturing facilities for our product candidates fail to comply with applicable regulatory requirements, a regulatory agency may, among other things:

● issue warning letters or untitled letters;

● seek an injunction or impose civil or criminal penalties or monetary fines;

● suspend or withdraw marketing approval;

● suspend any ongoing clinical trials;

● refuse to approve pending applications or supplements to applications submitted by us;

● suspend or impose restrictions on operations, including costly new manufacturing requirements; or

● seize or detain products, refuse to permit the import or export of products, or require that we initiate a product recall.

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Competing therapies could emerge adversely affecting our opportunity to generate revenue from the sale of our product candidates.

The  pharmaceutical  industry  is  highly  competitive.  There  are  many  public  and  private  pharmaceutical  companies,  universities,  governmental  agencies  and  other  research
organizations  actively  engaged  in  the  research  and  development  of  product  candidates  that  may  be  similar  to  and  compete  with  our  product  candidates  or  address  similar
markets. It is probable that the number of companies seeking to develop product candidates similar to and competitive with our product candidates will increase.

Currently, management is unaware of any FDA-approved oral adjunctive therapy for MDD patients with an inadequate response to standard antidepressants having the same
mechanism of pharmacological action and safety profile as our orally-administered AV-101 or our intranasally-administered PH10. However, new antidepressant products with
other  mechanisms  of  pharmacological  action  or  products  approved  for  other  indications,  including  the  FDA-approved  anesthetic  ketamine  hydrochloride  administered
intravenously,  are  being  or  may  be  used  off-label  for  treatment  of  MDD,  as  well  as  other  CNS  indications  for  which AV-101  or  PH10  may  have  therapeutic  potential.
Additionally,  other  non-pharmaceutical  treatment  options,  such  psychotherapy  and  electroconvulsive  therapy  (ECT)  are  used  before  or  instead  of  standard  antidepressant
medications  to  treat  patients  with  MDD.  Management  is  also  unaware  of  any  FDA-approved  rapid-onset,  on-demand  treatment  for  SAD  having  the  same  mechanism  of
pharmacological action and safety profile as our PH94B.

In the field of new generation, oral adjunctive treatments for adult patients with MDD with an inadequate response to standard FDA-approved ADs, we believe our principal
competitors may be Axsome’s AX-05, Alkermes’ ALKS-5461, Allergan’s AGN-241751 and Sage’s Sage-217. Additional potential competitors may include, but not be limited
to, academic and private commercial clinics providing intravenous ketamine therapy on an off-label basis and Janssen’s intranasally-administered Spravato (esketamine). With
respect to PH94B and current FDA-approved treatment options for SAD in the U.S., our competition may include, but is not limited to, certain current generic ADs approved
by the FDA for treatment of SAD and certain classes of drugs used on an off-label basis for treatment of SAD, including benzodiazapines such as alprazolam, and beta blockers
such as propranolol.

Many of our potential competitors, alone or with their strategic partners, have substantially greater financial, technical and human resources than we do and significantly greater
experience  in  the  discovery,  and  development  of  product  candidates,  obtaining  FDA  and  other  regulatory  approvals  of  treatments  and  the  commercialization  of  those
treatments.    With  respect  to AV-101  and  PH10,  we  believe  that  a  range  of  pharmaceutical  and  biotechnology  companies  have  programs  to  develop  drug  candidates  for  the
treatment  of  depression,  including  MDD,  Parkinson’s  disease  levodopa-induced  dyskinesia,  neuropathic  pain,  epilepsy,  and  other  neurological  conditions  and  diseases,
including, but not limited to, Abbott Laboratories, Acadia, Allergan, Alkermes, Aptynix, AstraZeneca, Eli Lilly, GlaxoSmithKline, IntraCellular, Janssen, Lundbeck, Merck,
Novartis, Ono, Otsuka, Pfizer, Roche, Sage, Sumitomo Dainippon, and Takeda, as well as any affiliates of the foregoing companies.  With respect to PH94B, in addition to
potential  competition  from  certain  current  FDA-approved  antidepressants  and  off-label  use  of  benzodiazepines  and  beta  blockers,  we  believe  additional  drug  candidates  in
development for SAD may include, but potentially not be limited to, an oral fatty acid amide hydrolase inhibitor in development by Janssen and a sublingual formulation of the
sodium channel blocker riluzole in development by Biohaven. Mergers and acquisitions in the biotechnology and pharmaceutical industries may result in even more resources
being concentrated among a smaller number of our competitors. Our commercial opportunity could be reduced or eliminated if our competitors develop and commercialize
products that are safer, more effective, have fewer or less severe side effects, are more convenient or are less expensive than any products that we may develop. Our competitors
also may obtain FDA or other regulatory approval for their products more rapidly than we may obtain approval for ours, which could result in our competitors establishing a
strong market position before we are able to enter the market.

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

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

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

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

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

In addition, any future collaboration that we enter into may not be successful. The success of our collaboration arrangements will depend heavily on the efforts and activities of
our  collaborators.  Collaborators  generally  have  significant  discretion  in  determining  the  efforts  and  resources  that  they  will  apply  to  these  collaborations.  Disagreements
between parties to a collaboration arrangement regarding clinical development and commercialization matters can lead to delays in the development process or commercializing
the applicable product candidate and, in some cases, termination of the collaboration arrangement. These disagreements can be difficult to resolve if neither of the parties has
final decision-making authority. Collaborations with pharmaceutical or biotechnology companies and other third parties often are terminated or allowed to expire by the other
party. Any such termination or expiration would adversely affect us financially and could harm our business reputation.

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

The success of our business depends primarily upon our ability to identify, develop and commercialize product candidates with commercial and therapeutic potential. Although
AV-101 is in Phase 2 clinical development for treatment of MDD, and we are planning for Phase 2a studies of AV-101 for treatment of NP and LID, for Phase 3 development of
PH94B for on-demand treatment of SAD, and a Phase 2b study of PH10 for treatment of MDD, we may fail to pursue additional development opportunities for AV-101, PH94B
or PH10, or identify additional product candidates for clinical development for a number of reasons. Our research methodology may be unsuccessful in identifying new product
candidates  or  our  product  candidates  may  be  shown  to  have  harmful  side  effects  or  may  have  other  characteristics  that  may  make  the  products  unmarketable  or  unlikely  to
receive marketing approval.

Because  we  currently  have  limited  financial  and  management  resources,  we  necessarily  focus  on  a  limited  number  of  research  and  development  programs  and  product
candidates  and  are  currently  focused  primarily  on  development  of  AV-101,  PH94B  and  PH10,  with  additional  limited  focus  on  NCE  DR  and,  through  a  third-party
collaboration, RM. As a result, we may forego or delay pursuit of opportunities with other product candidates or for other potential CNS-related indications for AV-101, PH94B
and/or PH10 that later prove to have greater commercial potential. Our resource allocation decisions may cause us to fail to capitalize on viable commercial drugs 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 drugs. If we do not accurately evaluate the commercial potential or target market for a particular product candidate, we may relinquish valuable rights to that product
candidate through future 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.

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If any of these events occur, we may be forced to abandon our development efforts for a program or programs, which would have a material adverse effect on our business and
could potentially cause us to cease operations. Research and development programs to identify and advance new product candidates require substantial technical, financial and
human resources. We may focus our efforts and resources on potential programs or product candidates that ultimately prove to be unsuccessful.

We are subject to healthcare laws and regulations, which could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm and diminished
profits and future earnings.

Although we do not currently have any products on the market, once we begin commercializing our product candidates, we may be subject to additional healthcare statutory and
regulatory requirements and enforcement by the federal government and the states and foreign governments in which we conduct our business. Healthcare providers, physicians
and others will play a primary role in the recommendation and prescription of our product candidates, if approved. Our future arrangements with third-party payors will expose
us to broadly applicable fraud and abuse and other healthcare laws and regulations that may constrain the business or financial arrangements and relationships through which
we market, sell and distribute our product candidates, if we obtain marketing approval. Restrictions under applicable federal and state healthcare laws and regulations include
the following:

● The federal anti-kickback statute prohibits, among other things, persons from knowingly and willfully soliciting, offering, receiving or providing remuneration, directly or
indirectly, in cash or in kind, to induce or reward either the referral of an individual for, or the purchase, order or recommendation of, any good or service, for which
payment may be made under federal healthcare programs such as Medicare and Medicaid.

● The  federal  False  Claims  Act  imposes  criminal  and  civil  penalties,  including  those  from  civil  whistleblower  or  qui  tam  actions,  against  individuals  or  entities  for
knowingly presenting, or causing to be presented, to the federal government, claims for payment that are false or fraudulent or making a false statement to avoid, decrease,
or conceal an obligation to pay money to the federal government.

● The  federal  Health  Insurance  Portability  and Accountability Act  of  1996,  as  amended  by  the  Health  Information  Technology  for  Economic  and  Clinical  Health Act,
imposes criminal and civil liability for executing a scheme to defraud any healthcare benefit program and also imposes obligations, including mandatory contractual terms,
with respect to safeguarding the privacy, security and transmission of individually identifiable health information.

● The federal false statements statute prohibits 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.

● The federal transparency requirements, sometimes referred to as the “Sunshine Act,” under the Patient Protection and Affordable Care Act, require manufacturers of drugs,
devices, biologics and medical supplies that are reimbursable under Medicare, Medicaid, or the Children’s Health Insurance Program to report to the Department of Health
and Human Services information related to physician payments and other transfers of value and physician ownership and investment interests.

● Analogous state laws and regulations, such as state anti-kickback and false claims laws and transparency laws, may apply to sales or marketing arrangements and claims
involving  healthcare  items  or  services  reimbursed  by  non-governmental  third-party  payors,  including  private  insurers,  and  some  state  laws  require  pharmaceutical
companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the relevant compliance.

● Guidance promulgated by the federal government in addition to requiring drug manufacturers to report information related to payments to physicians and other healthcare

providers or marketing expenditures and drug pricing.

● Foreign Corrupt Practices Act and its application to marketing and selling practices as well as to clinical trials.

Ensuring  that  our  future  business  arrangements  with  third  parties  comply  with  applicable  healthcare  laws  and  regulations  could  be  costly.  It  is  possible  that  governmental
authorities  will  conclude  that  our  business  practices  do  not  comply  with  current  or  future  statutes,  regulations  or  case  law  involving  applicable  fraud  and  abuse  or  other
healthcare laws and regulations. If our operations were found to be in violation of any of these laws or any other governmental regulations that may apply to us, we may be
subject to significant civil, criminal and administrative penalties, damages, fines and exclusion from government funded healthcare programs, such as Medicare and Medicaid,
any  of  which  could  substantially  disrupt  our  operations.  If  any  of  the  physicians  or  other  providers  or  entities  with  whom  we  expect  to  do  business  are  found  to  be  out  of
compliance with applicable laws, they may be subject to criminal, civil or administrative sanctions, including exclusions from government funded healthcare programs.

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

The FDA and other regulatory agencies strictly regulate the promotional claims that may be made about prescription products, such as AV-101, PH94B and PH10, if approved.
In particular, a product may not be promoted for uses that are not approved by the FDA or such other regulatory agencies as reflected in the product’s approved labeling. For
example,  if  we  receive  FDA  marketing  approval  for AV-101  as  an  adjunctive  treatment  of  MDD,  physicians  may  prescribe AV-101  to  their  patients  in  a  manner  that  is
inconsistent  with  the  FDA-approved  label.  However,  if  we  are  found  to  have  promoted  such  off-label  uses,  we  may  become  subject  to  significant  liability.  The  federal
government has levied large civil and criminal fines against companies for alleged improper off-label promotion and has enjoined several companies from engaging in off-label
promotion. The FDA has also requested that companies enter into consent decrees or imposed permanent injunctions under which specified promotional conduct is changed or
curtailed.  If  we  cannot  successfully  manage  the  promotion  of  our  product  candidates,  if  approved,  we  could  become  subject  to  significant  liability,  which  would  materially
adversely affect our business and financial condition.

Even if approved, reimbursement policies could limit our ability to sell our product candidates.

Market  acceptance  and  sales  of  our  product  candidates  will  depend  heavily  on  reimbursement  policies  and  may  be  affected  by  healthcare  reform  measures.  Government
authorities and third-party payors, such as private health insurers and health maintenance organizations, decide which medications they will pay for and establish reimbursement
levels for those medications. Cost containment is a primary concern in the United States healthcare industry and elsewhere. Government authorities and these third-party payors
have attempted to control costs by limiting coverage and the amount of reimbursement for particular medications. We cannot be sure that reimbursement will be available for
our product candidates and, if reimbursement is available, the level of such reimbursement. Reimbursement may impact the demand for, or the price of, 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.

In  some  foreign  countries,  particularly  in  Canada  and  European  countries,  the  pricing  of  prescription  pharmaceuticals  is  subject  to  strict  governmental  control.  In  these
countries, pricing negotiations with governmental authorities can take six months or longer after the receipt of regulatory approval and product launch. To obtain favorable
reimbursement  for  the  indications  sought  or  pricing  approval  in  some  countries,  we  may  be  required  to  conduct  a  clinical  trial  that  compares  the  cost-effectiveness  of  our
product candidates with other available therapies. If reimbursement for our product candidates is unavailable in any country in which we seek reimbursement, if it is limited in
scope  or  amount,  if  it  is  conditioned  upon  our  completion  of  additional  clinical  trials,  or  if  pricing  is  set  at  unsatisfactory  levels,  our  operating  results  could  be  materially
adversely affected.

We may seek FDA Orphan Drug designation for one or more of our product candidates. Even if we have obtained FDA Orphan Drug designation for a product candidate,
there may be limits to the regulatory exclusivity afforded by such designation.

We may, in the future, choose to seek FDA Orphan Drug designation for one or more of our current or future product candidates. Even if we obtain Orphan Drug designation
from  the  FDA  for  a  product  candidate,  there  are  limitations  to  the  exclusivity  afforded  by  such  designation.  In  the  U.S.,  the  company  that  first  obtains  FDA  approval  for  a
designated  orphan  drug  for  the  specified  rare  disease  or  condition  receives  orphan  drug  marketing  exclusivity  for  that  drug  for  a  period  of  seven  years.  This  orphan  drug
exclusivity  prevents  the  FDA  from  approving  another  application,  including  a  full  NDA  to  market  the  same  drug  for  the  same  orphan  indication,  except  in  very  limited
circumstances, including when the FDA concludes that the later drug is safer, more effective or makes a major contribution to patient care. For purposes of small molecule
drugs, the FDA defines “same drug” as a drug that contains the same active moiety and is intended for the same use as the drug in question. To obtain Orphan Drug status for a
drug that shares the same active moiety as an already approved drug, it must be demonstrated to the FDA that the drug is safer or more effective than the approved orphan
designated drug, or that it makes a major contribution to patient care. In addition, a designated orphan drug may not receive orphan drug exclusivity if it is approved for a use
that  is  broader  than  the  indication  for  which  it  received  orphan  designation.  In  addition,  orphan  drug  exclusive  marketing  rights  in  the  U.S.  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 quantity of the drug to meet the needs of patients with
the rare disease or condition or if another drug with the same active moiety is determined to be safer, more effective, or represents a major contribution to patient care.

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

Our future profitability may depend, in part, on our ability to commercialize our product candidates in foreign markets for which we may rely on collaboration with third parties.
If we commercialize our product candidates in foreign markets, we would be subject to additional risks and uncertainties, including:

● our customers’ ability to obtain reimbursement for our product candidates in foreign markets;

● our inability to directly control commercial activities because we are relying on third parties;

● the burden of complying with complex and changing foreign regulatory, tax, accounting and legal requirements;

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

● import or export licensing requirements;

● longer accounts receivable collection times;

● longer lead times for shipping;

● language barriers for technical training;

● reduced protection of intellectual property rights, different standards of patentability and different availability of prior art in some foreign countries as compared with the

U.S.;

● the existence of additional potentially relevant third party intellectual property rights;

● foreign currency exchange rate fluctuations; and

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

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

We  are  a  development  stage  biopharmaceutical  company  with  no  current  revenues  or  approved  products,  and  limited  experience  developing  new  therapeutic  product
candidates, including conducting clinical trials and other areas required for the successful development and commercialization of therapeutic products, which makes it
difficult to assess our future viability.

We are a development stage biopharmaceutical company. Although we have one drug candidate in Phase 2 development and are preparing to advance another drug candidate
into Phase 2 development and a third drug candidate into pivotal Phase 3 clinical trials, we currently have no approved products and currently generate no revenues, and we
have not yet fully demonstrated an ability to overcome many of the fundamental risks and uncertainties frequently encountered by development stage companies in new and
rapidly evolving fields of technology, particularly biotechnology. To execute our business plan successfully, we will need to accomplish the following fundamental objectives,
either on our own or with collaborators:

● develop and obtain required regulatory approvals for commercialization of AV-101, PH94B, PH10 and/or other product candidates;

● maintain, leverage and expand our intellectual property portfolio;

● establish and maintain sales, distribution and marketing capabilities, and/or enter into strategic partnering arrangements to access such capabilities;

● gain market acceptance for our product candidates; and

● obtain  adequate  capital  resources  and  manage  our  spending  as  costs  and  expenses  increase  due  to  research,  production,  development,  regulatory  approval  and

commercialization of product candidates.

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Our future success is highly dependent upon our ability to successfully develop and commercialize any of our current product candidates, acquire or license additional
product candidates, or discover, as well as produce, develop and commercialize proprietary DR NCEs using our stem cell technology, and we cannot provide any assurance
that we will successfully develop and commercialize AV-101, PH94B, PH10 or acquire or license additional product candidates or discover and develop DR NCEs, or that,
if produced, AV-101, PH94B, PH10 or any other product candidate will be successfully commercialized.

Business development and research and development programs designed to identify, acquire or license additional product candidates, or, as the case may be, produce DR NCEs
require  substantial  technical,  financial  and  human  resources,  whether  or  not  any  additional  product  candidate  is  acquired  or  licensed  or  NCEs  are  ultimately  identified  and
produced.  

In  addition,  we  do  not  have  a  sales  or  marketing  infrastructure,  and  we,  including  our  executive  officers,  do  not  have  any  significant  pharmaceutical  sales,  marketing  or
distribution experience. We may seek to collaborate with others to develop and commercialize AV-101, PH94B, PH10, drug rescue NCEs and/or other product candidates if and
when they are acquired and developed, or we may seek to establish those commercial capabilities ourselves.  If we enter into arrangements with third parties to perform sales,
marketing and distribution services for our products, the resulting revenues or the profitability from these revenues to us are likely to be lower than if we had sold, marketed and
distributed our products ourselves. In addition, we may not be successful entering into arrangements with third parties to sell, market and distribute AV-101, PH94B, PH10, any
drug rescue NCEs or other product candidates or may be unable to do so on terms that are favorable to us.  We likely will have little control over such third parties, and any of
these third parties may fail to devote the necessary resources and attention to sell, market and distribute our products effectively.  If we do not establish sales, marketing and
distribution capabilities successfully, either on our own or in collaboration with third parties, we will not be successful in commercializing our product candidates.

We have limited operating history with respect to drug development, including our anticipated focus on the identification and acquisition of additional product candidates
or the assessment of potential DR NCEs and no operating history with respect to the production of DR NCEs, and we may never be able to produce a DRNCE.

If we are unable to develop and commercialize AV-101, PH94B, PH10 or acquire or license additional product candidates, or produce suitable DR NCEs, we may not be able to
generate sufficient revenues to execute our business plan, which likely would result in significant harm to our financial position and results of operations, which could adversely
impact our stock price.  

With respect to DR, there are a number of factors, in addition to the utility of CardioSafe 3D, that may impact our ability to identify and produce, develop or out-license and
commercialize DR NCEs, independently or with partners, including:

● our ability to identify potential DR candidates in the public domain, obtain sufficient quantities of them, and assess them using our bioassay systems;

● if we seek to rescue DR candidates that are not available to us in the public domain, the extent to which third parties may be willing to out-license or sell certain DR

candidates to us on commercially reasonable terms;

● our  medicinal  chemistry  collaborator’s  ability  to  design  and  produce  proprietary  DR  NCEs  based  on  the  novel  biology  and  structure-function  insight  we  provide

using CardioSafe 3D; and

● financial resources available to us to develop and commercialize lead DR NCEs internally, or, if we sell or out-license them to partners, the resources such partners choose

to dedicate to development and commercialization of any DR NCEs they acquire or license from us.

Even if we do acquire additional product candidates or produce proprietary DR NCEs, we can give no assurance that we will be able to develop and commercialize them as
marketable  drugs,  on  our  own  or  in  collaboration  with  others.  Before  we  generate  any  revenues  from AV-101,  PH94B,  PH10  or  additional  acquired  or  licensed  products
candidates  or  any  DR  NCEs,  we  or  our  potential  collaborators  must  complete  preclinical  and  clinical  development  programs,  submit  clinical  and  manufacturing  data  to  the
FDA, qualify a third party CMO, receive regulatory approval in one or more jurisdictions, satisfy the FDA that our CMO is capable of manufacturing the product in compliance
with  cGMP,  build  a  commercial  organization,  make  substantial  investments  and  undertake  significant  marketing  efforts  ourselves  or  in  partnership  with  others.  We  are  not
permitted to market or promote any of our product candidates before we receive regulatory approval from the FDA or comparable foreign regulatory authorities, and we may
never receive such regulatory approval for any of our product candidates.

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If CardioSafe  3D fails to predict accurately and efficiently the cardiac effects, both toxic and nontoxic, of DR candidates and DR NCEs, then our DR programs will be
adversely affected.

Success of our subsidiary, VistaStem, is partly dependent on our ability to use  CardioSafe 3D to identify and predict, accurately and efficiently, the potential toxic and nontoxic
cardiac effects of DR candidates and  DR  NCEs.  If CardioSafe 3D is not capable of providing physiologically relevant and clinically predictive information regarding human
cardiac biology, our DR business will be adversely affected.

CardioSafe 3D may not be meaningfully more predictive of the behavior of human cells than existing methods.

DR  drug  rescue  programs  is  highly  dependent  upon CardioSafe  3D  being  more  accurate,  efficient  and  clinically  predictive  than  long-established  surrogate  safety  models,
including animal cells and live animals, and immortalized, primary and transformed cells, currently used by pharmaceutical companies and others. We cannot give assurance
that CardioSafe  3D  will  be  more  efficient  or  accurate  at  predicting  the  heart  safety  of  new  drug  candidates  than  the  testing  models  currently  used.  If CardioSafe  3D  fails  to
provide a meaningful difference compared to existing or new models in predicting the behavior of human heart, respectively, their utility for DR will be limited and our DR
business will be adversely affected.

We may invest in producing DR NCEs for which there proves to be no demand.

To generate revenue from our DR activities, we must produce proprietary DR NCEs for which there proves to be demand within the healthcare marketplace, and, if we intend to
out-license a particular DR NCE for development and commercialization prior to market approval, then also among pharmaceutical companies and other potential collaborators.
However, we may produce DR NCEs for which there proves to be no or limited demand in the healthcare market and/or among pharmaceutical companies and others. If we
misinterpret market conditions, underestimate development costs and/or seek to rescue the wrong DR candidates, we may fail to generate sufficient revenue or other value, on
our own or in collaboration with others, to justify our investments, and our DR business may be adversely affected.

We may experience difficulty in producing human cells and our future stem cell technology research and development efforts may not be successful within the timeline
anticipated, if at all.

Our  hPSC  technology  is  technically  complex,  and  the  time  and  resources  necessary  to  develop  various  human  cell  types  and  customized  bioassay  systems,  although  not
significant  at  present,  are  difficult  to  predict  in  advance.  We  might  decide  to  devote  significant  additional  personnel  and  financial  resources  to  research  and  development
activities designed to expand, in the case of DR, and explore, in the case of drug discovery and RM, potential applications of our stem cell technology platform. In particular, we
may conduct exploratory nonclinical RM programs involving blood, bone, cartilage, and/or liver cells. Although we and our third-party collaborators have developed proprietary
protocols to produce multiple differentiated cell types, we could encounter difficulties in differentiating and producing sufficient quantities of particular cell types, even when
following these proprietary protocols. These difficulties could result in delays in production of certain cells, assessment of certain DR candidates and DR NCEs, design and
development of certain human cellular assays and performance of certain exploratory nonclinical RM studies. In the past, our stem cell research and development projects have
been significantly delayed when we encountered unanticipated difficulties in differentiating hPSCs into heart and liver cells. Although we have overcome such difficulties in the
past, we may have similar delays in the future, and we may not be able to overcome them or obtain any benefits from our future stem cell technology research and development
activities. Any delay or failure by us, for example, to produce functional, mature blood, bone, cartilage, and liver cells could have a substantial and material adverse effect on
our potential drug discovery, DR and RM business opportunities and results of operations.

Restrictions on research and development involving human embryonic stem cells and religious and political pressure regarding such stem cell research and development
could impair our ability to conduct or sponsor certain potential collaborative research and development programs and adversely affect our prospects, the market price of
our common stock and our business model.

Some  of  our  research  and  development  programs  may  involve  the  use  of  human  cells  derived  from  our  controlled  differentiation  of  human  embryonic  stem  cells  (hESCs).
Some believe the use of hESCs gives rise to ethical and social issues regarding the appropriate use of these cells. Our research related to differentiation of hESCs may become
the  subject  of  adverse  commentary  or  publicity,  which  could  significantly  harm  the  market  price  of  our  common  stock. Although  now  substantially  less  than  in  years  past,
certain political and religious groups in the U.S. and elsewhere voice opposition to hESC technology and practices. We may use hESCs derived from excess fertilized eggs that
have  been  created  for  clinical  use  in in vitro  fertilization  (IVF)  procedures  and  have  been  donated  for  research  purposes  with  the  informed  consent  of  the  donors  after  a
successful IVF procedure because they are no longer desired or suitable for IVF. Certain academic research institutions have adopted policies regarding the ethical use of human
embryonic tissue. These policies may have the effect of limiting the scope of future collaborative research opportunities with such institutions, thereby potentially impairing our
ability to conduct certain research and development in this field that we believe is necessary to expand the DR capabilities of our technology, which would have a material
adverse effect on our business.

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The use of embryonic or fetal tissue in research (including the derivation of hESCs) in other countries is regulated by the government, and such regulation varies widely from
country to country.  Government-imposed  restrictions  with  respect  to  use  of  hESCs  in  research  and  development  could  have  a  material  adverse  effect  on  us  by  harming  our
ability to establish critical collaborations, delaying or preventing progress in our research and development, and causing a decrease in the market interest in our stock.

The foregoing potential ethical concerns do not apply to our use of induced pluripotent stem cells (iPSCs) because their derivation does not involve the use of embryonic tissues.

We  have  assumed  that  the  biological  capabilities  of  iPSCs  and  hESCs  are  likely  to  be  comparable.  If  it  is  discovered  that  this  assumption  is  incorrect,  our  exploratory
research and development activities focused on potential regenerative medicine applications of our stem cell technology platform could be harmed.

We may use both hESCs and iPSCs to produce human cells for our customized in vitro assays for drug discovery and drug rescue purposes. However, we anticipate that our
future exploratory research and development, if any, focused on potential regenerative medicine applications of our stem cell technology platform primarily will involve iPSCs.
With  respect  to  iPSCs,  we  believe  scientists  are  still  somewhat  uncertain  about  the  clinical  utility,  life  span,  and  safety  of  such  cells,  and  whether  such  cells  differ  in  any
clinically significant ways from hESCs. If we discover that iPSCs will not be useful for whatever reason for potential regenerative medicine programs, this would negatively
affect our ability to explore expansion of our platform in that manner, including, in particular, where it would be preferable to use iPSCs to reproduce rather than approximate
the effects of certain specific genetic variations.

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

We are subject to numerous environmental, health and safety laws and regulations, including those governing laboratory procedures and the handling, use, storage, treatment
and  disposal  of  hazardous  materials  and  wastes.  Our  operations  involve  the  use  of  hazardous  and  flammable  materials,  including  chemicals  and  biological  materials.  Our
operations  also  produce  hazardous  waste  products.  We  generally  contract  with  third  parties  for  the  disposal  of  these  materials  and  wastes.  We  cannot  eliminate  the  risk  of
contamination or injury from these materials. In the event of contamination or injury resulting from our use of hazardous materials, we could be held liable for any resulting
damages, and any liability could exceed our resources. We also could incur significant costs associated with civil or criminal fines and penalties.

Although we maintain workers' compensation insurance to cover us for costs and expenses we may incur due to injuries to our employees resulting from the use of hazardous
materials, this insurance may not provide adequate coverage against potential liabilities. We do not maintain insurance for environmental liability or toxic tort claims that may
be asserted against us in connection with our storage or disposal of biological, hazardous or radioactive materials.

In addition, we may incur substantial costs to comply with current or future environmental, health and safety laws and regulations. These current or future laws and regulations
may impair our research, development, or production efforts. Failure to comply with these laws and regulations also may result in substantial fines, penalties, or other sanctions,
which could have a material adverse effect on our operations.

To the extent our research and development activities involve using iPSCs, we will be subject to complex and evolving laws and regulations regarding privacy and informed
consent.  Many  of  these  laws  and  regulations  are  subject  to  change  and  uncertain  interpretation,  and  could  result  in  claims,  changes  to  our  research  and  development
programs and objectives, increased cost of operations or otherwise harm the Company.

To the extent that we pursue research and development activities involving iPSCs, we will be subject to a variety of laws and regulations in the U.S. and abroad that involve
matters central to such research and development activities, including obligations to seek informed consent from donors for the use of their blood and other tissue to produce, or
have produced for us, iPSCs, as well as state and federal laws that protect the privacy of such donors. U.S. federal and state and foreign laws and regulations are constantly
evolving and can be subject to significant change. If we engage in iPSC-related research and development activities in countries other than the U.S., we may become subject to
foreign  laws  and  regulations  relating  to  human-subjects  research  and  other  laws  and  regulations  that  are  often  more  restrictive  than  those  in  the  U.S.  In  addition,  both  the
application and interpretation of these laws and regulations are often uncertain, particularly in the rapidly evolving stem cell technology sector. Compliance with these laws and
regulations can be costly, can delay or impede our research and development activities, result in negative publicity, increase our operating costs, require significant management
time and attention and subject us to claims or other remedies, including fines or demands that we modify or cease existing business practices.

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Legal, social and ethical concerns surrounding the use of iPSCs, biological materials and genetic information could impair our operations.

To  the  extent  that  our  future  stem  cell  research  and  development  activities  involve  the  use  of  iPSCs  and  the  manipulation  of  human  tissue  and  genetic  information,  the
information  we  derive  from  such  iPSC-related  research  and  development  activities  could  be  used  in  a  variety  of  applications,  which  may  have  underlying  legal,  social  and
ethical  concerns,  including  the  genetic  engineering  or  modification  of  human  cells,  testing  for  genetic  predisposition  for  certain  medical  conditions  and  stem  cell  banking.
Governmental authorities could, for safety, social or other purposes, call for limits on or impose regulations on the use of iPSCs and genetic testing or the manufacture or use of
certain biological materials involved in our iPSC-related research and development programs. Such concerns or governmental restrictions could limit our future research and
development activities, which could have a material adverse effect on our business, financial condition and results of operations.

Our  human  cellular  bioassay  systems  and  human  cells  we  derive  from  human  pluripotent  stem  cells,  although  not  currently  subject  to  regulation  by  the  FDA  or  other
regulatory agencies as biological products or drugs, could become subject to regulation in the future.

The human cells we produce from hPSCs and our customized bioassay systems using such cells, including CardioSafe 3D, are not currently sold, for research purposes or any
other purpose, to biotechnology or pharmaceutical companies, government research institutions, academic and nonprofit research institutions, medical research organizations or
stem cell banks, and they are not therapeutic procedures. As a result, they are not subject to regulation as biological products or drugs by the FDA or comparable agencies in
other countries. However, if, in the future, we seek to include human cells we derive from hPSCs in therapeutic applications or product candidates, such applications and/or
product  candidates  would  be  subject  to  the  FDA’s  pre-  and  post-market  regulations.  For  example,  if  we  seek  to  develop  and  market  human  cells  we  produce  for  use  in
performing RM applications, such as tissue engineering or organ replacement, we would first need to obtain FDA pre-market clearance or approval. Obtaining such clearance or
approval from the FDA is expensive, time-consuming and uncertain, generally requiring many years to obtain, and requiring detailed and comprehensive scientific and clinical
data. Notwithstanding the time and expense, these efforts may not result in FDA approval or clearance. Even if we were to obtain regulatory approval or clearance, it may not
be for the uses that we believe are important or commercially attractive.

Risks Related to Our Financial Position

We  have  incurred  significant  net  losses  since  inception  and  we  will  continue  to  incur  substantial  operating  losses  for  the  foreseeable  future.  We  may  never  achieve  or
sustain profitability, which would depress the market price of our common stock and could cause you to lose all or a part of your investment.

We have incurred significant net losses in each fiscal year since our inception in 1998, including net losses of approximately $24.6 million and $14.3 million during our fiscal
years ended March 31, 2019 and 2018, respectively. At March 31, 2019, we had an accumulated deficit of approximately $181.1 million. We do not know whether or when we
will become profitable. Substantially all of our operating losses have resulted from costs incurred in connection with our research and development programs and from general
and administrative costs associated with our operations. We expect to incur increasing levels of operating losses over the next several years and for the foreseeable future. Our
prior  losses,  combined  with  expected  future  losses,  have  had  and  will  continue  to  have  an  adverse  effect  on  our  stockholders’  equity  and  working  capital.  We  expect  our
research  and  development  expenses  to  significantly  increase  in  connection  with  nonclinical  studies  and  clinical  trials  of  our  product  candidates.  In  addition,  if  we  obtain
marketing approval for our product candidates, we may incur significant sales, marketing and outsourced-manufacturing expenses should we elect not to collaborate with one or
more third parties for such services and capabilities. As a public company, we incur additional costs associated with operating as a public company. As a result, we expect to
continue  to  incur  significant  and  increasing  operating  losses  for  the  foreseeable  future.  Because  of  the  numerous  risks  and  uncertainties  associated  with  developing
pharmaceutical products, we are unable to predict the extent of any future losses or when we will become profitable, if at all. Even if we do become profitable, we may not be
able to sustain or increase our profitability on a quarterly or annual basis.

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Our ability to become profitable depends upon our ability to generate revenues. To date, we have generated approximately $17.7 million in revenues, consisting of receipt of
non-dilutive cash payments from collaborators, sublicense revenue, and research and development grant awards from the NIH. We have not yet commercialized any product or
generated any revenues from product sales, and we do not know when, or if, we will generate any revenue from product sales. We do not expect to generate significant revenue
unless and until we obtain marketing approval of, and begin to experience sales of, AV-101, PH94B, PH10 or another future product candidate, or we enter into one or more
development and commercialization agreements with respect to AV-101, PH94B, PH10 or one or more other future product candidates. Our ability to generate revenue depends
on a number of factors, including, but not limited to, our ability to:

● initiate and successfully complete nonclinical and clinical trials that meet their prescribed endpoints;

● initiate and successfully complete all safety studies required to obtain U.S. and foreign marketing approval for our product candidates;

● timely complete and compose successful regulatory submissions such as NDAs or comparable documents for both the U.S. and foreign jurisdictions;

● commercialize our product candidates, if approved, by developing a sales force or entering into collaborations with third parties for sales and marketing capabilities; and

● achieve market acceptance of our product candidates in the medical community and with third-party payors.

Unless we enter into a commercialization collaboration or partnership with respect to the commercialization of our product candidates, we expect to incur significant sales and
marketing costs as we prepare to commercialize our product candidates. Even if we initiate and successfully complete pivotal clinical trials of our product candidates, and our
product  candidates  are  approved  for  commercial  sale,  and  despite  expending  these  costs,  our  product  candidates  may  not  be  commercially  successful.  We  may  not  achieve
profitability soon after generating product sales, if ever. If we are unable to generate product revenue, we will not become profitable and may be unable to continue operations
without continued funding.

We require additional financing to execute our business plan and continue to operate as a going concern.

Our audited consolidated financial statements for the year ended March 31, 2019 included elsewhere in this Annual Report on Form 10-K for the year ended March 31, 2019
(Annual Report) were prepared assuming we will continue to operate as a going concern, although we and our auditors have indicated that our continuing losses and negative
cash flows from operations raise substantial doubt about our ability to continue as such. Because we continue to experience net operating losses, our ability to continue as a
going concern is subject to our ability to obtain necessary funding from outside sources, including obtaining additional funding from this offering as well as future sales of our
securities or potentially obtaining loans and grant awards from financial institutions and/or government agencies where possible. Our continued net operating losses increase the
difficulty in completing such sales or securing alternative sources of funding, and there can be no assurances that we will be able to obtain any future funding on favorable terms
or at all. If we are unable to obtain sufficient financing from the sale of our securities or from alternative sources, we may be required to reduce, defer, or discontinue certain or
all of our research and development activities or we may not be able to continue as a going concern.

Since our inception, most of our resources have been dedicated to research and development of AV-101 and the DR capabilities of VistaStem’s stem cell technology platform.
In  particular,  we  have  expended  substantial  resources  on  research  and  development  of  methods  and  processes  relating  to  the  production  of AV-101 API  and  drug  product,
advancing AV-101 through IND-enabling preclinical development, Phase 1 clinical safety studies, and into ongoing Phase 2 clinical development, including preparation for and
launch  of  our  ELEVATE  Study,  as  well  as  research  and  development  and  regulatory  expenses  related  to  the  production  of  PH94B  and  PH10  and  our  stem  cell  technology
platform, including development of CardioSafe 3D for DR and our cardiac stem cell technology for potential RM applications in connection with the Bluerock Agreement, and
we expect to continue to expend substantial resources for the foreseeable future developing and commercializing our product candidates on our own or in collaborations. These
expenditures will include costs associated with general and administrative costs, facilities costs, research and development, acquiring new technologies, manufacturing product
candidates, conducting nonclinical experiments and clinical trials and obtaining regulatory approvals, as well as commercializing any products approved for sale.

At  March  31,  2019,  we  had  cash  and  cash  equivalents  of  approximately  $13.1  million.  We  do  not  believe  this  amount  alone  is  sufficient  to  enable  us  to  fund  our  planned
operations for at least the twelve months following the issuance of the financial statements included elsewhere in this Annual Report. We expect to seek additional capital to
produce PH94B study material, conduct PH94B pivotal Phase 3 clinical trials, produce additional AV-101 study material for future nonclinical and clinical studies, conduct AV-
101 Phase 3-enabling toxicology studies, conduct pivotal Phase 3 clinical studies of AV-101 in MDD, conduct AV-101 Phase 2 studies in LID, MDD, NP and SI, produce
PH10 study material and conduct a Phase 2b clinical trial of PH10 in MDD, acquire or license and conduct research and development of additional product candidates and to
fund our internal operations.

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Further, we have no current source of revenue to sustain our present activities, and we do not expect to generate revenue until, and unless, we (i) out-license or sell a product
candidate to a third-party, (ii) enter into additional license arrangements involving our stem cell technology, or (iii) obtain approval from the FDA or other regulatory authorities
and successfully commercialize, on our own or through a future collaboration, one or more of our product candidates.

As  the  outcome  of  our  ongoing  research  and  development  activities,  including  the  outcome  of  ongoing  and  future  anticipated  clinical  trials  is  highly  uncertain,  we  cannot
reasonably estimate the actual amounts necessary to successfully complete the development and commercialization of our product candidates, on our own or in collaboration
with others. In addition, other unanticipated costs may arise. As a result of these and other factors, we will need to seek additional capital in the near term to meet our future
operating requirements, including capital necessary to develop, obtain regulatory approval for, and to commercialize our product candidates, and may seek additional capital in
the event there exists favorable market conditions or strategic considerations even if we believe we have sufficient funds for our current or future operating plans. We have
completed in the past, and are currently considering a range of potential financing transactions, including public or private equity or debt financings, government or other third-
party funding, marketing and distribution arrangements and other collaborations, strategic alliances and licensing arrangements or a combination of these approaches, and we
may complete additional financing arrangements later in 2019 and thereafter. Raising funds in the current economic environment may present additional challenges. Even if we
believe we have sufficient funds for our current or future operating plans, we may seek additional capital if market conditions are favorable or if we have specific strategic
considerations.

Our future capital requirements depend on many factors, including:

●

●

●

●

●

●

the  number  and  characteristics  of  the  product  candidates  we
pursue;

the  scope,  progress,  results  and  costs  of  researching  and  developing  our  product  candidates,  and  conducting  preclinical  and  clinical
studies;

the  timing  of,  and  the  costs  involved  in,  obtaining  regulatory  approvals  for  our  product
candidates;

the  cost  of  commercialization  activities  if  any  of  our  product  candidates  are  approved  for  sale,  including  marketing,  sales  and  distribution
costs;

the  cost  of  manufacturing  our  product  candidates  and  any  products  we  successfully
commercialize;

our  ability  to  establish  and  maintain  strategic  partnerships,  licensing  or  other  collaborative  arrangements  and  the  financial  terms  of  such
agreements;

● market 

acceptance 

of 

our 

product

candidates;

●

●

●

●

●

●

the effect of competing technological and market developments;

our  ability  to  obtain  government  funding  for  our  research  and  development
programs;

the  costs  involved  in  obtaining,  maintaining  and  enforcing  patents  to  preserve  our  intellectual
property;

the  costs  involved  in  defending  against  such  claims  that  we  infringe  third-party  patents  or  violate  other  intellectual  property  rights  and  the  outcome  of  such
litigation;

the timing, receipt and amount of potential future licensee fees, milestone payments, and sales of, or royalties on, our future products, if any;
and

the  extent  to  which  we  may  acquire  or  invest  in  additional  businesses,  product  candidates  and
technologies.

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Any additional fundraising efforts will divert certain members of our management team from their day-to-day activities, which may adversely affect our ability to develop and
commercialize our product candidates. In addition, our ability to engage in certain types of capital raising transactions may be limited by the Listing Rules of the Nasdaq Stock
Market and/or General Instruction I.B.6 of Form S-3 so long as the market value of our common stock held by non-affiliates remains below $75 million. We cannot guarantee
that future financing will be available in sufficient amounts, in a timely manner, or on terms acceptable to us, if at all. The terms of any future financing may adversely affect the
holdings or the rights of our stockholders and the issuance of additional securities, whether equity or debt, by us, or the possibility of such issuance, may cause the market price
of  our  shares  to  decline.  The  sale  of  additional  equity  securities  and  the  conversion,  exchange  or  exercise  of  certain  of  our  outstanding  securities  will  dilute  all  of  our
stockholders. The incurrence of debt could result in increased fixed payment obligations and we could be required to agree to certain restrictive covenants, such as limitations on
our ability to incur additional debt, limitations on our ability to acquire, sell or license intellectual property rights and other operating restrictions that could adversely impact our
ability to conduct our business. We could also be required to seek funds through arrangements with collaborative partners or otherwise at an earlier stage than otherwise would
be desirable and we may be required to relinquish rights to some of our technologies or product candidates or otherwise agree to terms unfavorable to us, any of which may
have a material adverse effect on our business, operating results and prospects.

If we are unable to obtain additional funding on a timely basis and on acceptable terms, we may be required to significantly curtail, delay or discontinue one or more of our
research or product development programs or the commercialization of any product candidate or be unable to continue or expand our operations or otherwise capitalize on our
business opportunities, as desired, which could materially affect our business, financial condition and results of operations.

We have identified material weaknesses in our internal control over financial reporting, and our business and stock price may be adversely affected if we do not adequately
address those weaknesses or if we have other material weaknesses or significant deficiencies in our internal control over financial reporting.

We have identified material weaknesses in our internal control over financial reporting. In particular, we concluded that (i) the size and capabilities of our staff does not permit
appropriate segregation of duties to prevent one individual from overriding the internal control system by initiating, authorizing and completing all transactions, and (ii) we
utilize  accounting  software  that  does  not  prevent  erroneous  or  unauthorized  changes  to  previous  reporting  periods  and/or  can  be  adjusted  so  as  to  not  provide  an  adequate
auditing trail of entries made in the accounting software.

The  existence  of  one  or  more  material  weaknesses  or  significant  deficiencies  could  result  in  errors  in  our  financial  statements,  and  substantial  costs  and  resources  may  be
required to rectify any internal control deficiencies. If we cannot produce reliable financial reports, investors could lose confidence in our reported financial information, we
may be unable to obtain additional financing to operate and expand our business and our business and financial condition could be harmed.

Raising additional capital will cause substantial dilution to our existing stockholders, may restrict our operations or require us to relinquish rights, and may require us to
seek stockholder approval to authorize additional shares of our common stock.

We intend to pursue private and public equity offerings, debt financings, strategic collaborations and licensing arrangements during 2019 and beyond. To the extent that we
raise additional capital through the sale of common stock or securities convertible or exchangeable into common stock, or to the extent, for strategic purposes, we convert or
exchange certain of our outstanding securities into common stock, our current stockholders’ ownership interest in our company will be substantially diluted. In addition, the
terms of any such securities may include liquidation or other preferences that materially adversely affect rights of our stockholders. Debt financing, if available, would increase
our fixed payment obligations and 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 collaboration, strategic partnerships and licensing arrangements with third parties, we
may have to relinquish valuable rights to our product candidates, our intellectual property, future revenue streams or grant licenses on terms that are not favorable to us.

Some of our programs have been partially supported by government grant awards, which may not be available to us in the future.

Since  inception,  we  have  received  substantial  funds  under  grant  award  programs  funded  by  state  and  federal  governmental  agencies,  such  as  the  NIH,  the  NIH’s  National
Institute of Neurological Disease and Stroke (NINDS) and the NIMH, and the California Institute for Regenerative Medicine (CIRM). To fund a portion of our future research
and  development  programs,  we  may  apply  for  additional  grant  funding  from  such  or  similar  governmental  organizations.    However,  funding  by  these  governmental
organizations may be significantly reduced or eliminated in the future for a number of reasons. For example, some programs are subject to a yearly appropriations process in
Congress. In addition, we may not receive funds under future grants because of budgeting constraints of the agency administering the program. Therefore, we cannot assure you
that  we  will  receive  any  future  grant  funding  from  any  government  organization  or  otherwise.   A  restriction  on  the  government  funding  available  to  us  could  reduce  the
resources that we would be able to devote to future research and development efforts. Such a reduction could delay the introduction of new products and hurt our competitive
position.

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Our ability to use net operating losses to offset future taxable income is subject to certain limitations.

As of March 31, 2019, we had federal and state net operating loss carryforwards of approximately $109.0 million and $63.6 million, respectively, which begin to expire in fiscal
2020.  Under Section 382 of the Internal Revenue Code of 1986, as amended (the Code), changes in our ownership may limit the amount of our net operating loss carryforwards
that  could  be  utilized  annually  to  offset  our  future  taxable  income,  if  any.  This  limitation  would  generally  apply  in  the  event  of  a  cumulative  change  in  ownership  of  our
company of more than 50% within a three-year period. Any such limitation may significantly reduce our ability to utilize our net operating loss carryforwards and tax credit
carryforwards  before  they  expire.  Any  such  limitation,  whether  as  the  result  of  future  offerings,  prior  private  placements,  sales  of  our  common  stock  by  our  existing
stockholders  or  additional  sales  of  our  common  stock  by  us  in  the  future,  could  have  a  material  adverse  effect  on  our  results  of  operations  in  future  years.  We  have  not
completed a study to assess whether an ownership change for purposes of Section 382 has occurred, or whether there have been multiple ownership changes since our inception,
due to the significant costs and complexities associated with such study.

General Company-Related Risks

If  we  fail  to  attract  and  retain  senior  management  and  key  scientific  personnel,  we  may  be  unable  to  successfully  produce,  develop  and  commercialize  our  product
candidates.

Our success depends in part on our continued ability to attract, retain and motivate highly qualified management and scientific and technical personnel. We are highly dependent
upon our Chief Executive Officer, President and Chief Scientific Officer, Chief Medical Officer, Chief Financial Officer, and Vice President – Corporate Development as well
as our other employees, consultants and scientific collaborators. As of the date of this Annual Report, we have nine full-time employees, which may make us more reliant on
our  individual  employees  than  companies  with  a  greater  number  of  employees.  The  loss  of  services  of  any  of  these  individuals  could  delay  or  prevent  the  successful
development of our product candidates or disrupt our administrative functions.

Although we have not historically experienced unique difficulties attracting and retaining qualified employees, we could experience such problems in the future. For example,
competition for qualified personnel in the biotechnology and pharmaceuticals field is intense. We will need to hire additional personnel should we elect to expand our research
and development and administrative activities. We may not be able to attract and retain quality personnel on acceptable terms.

In addition, we rely on a broad and diverse range of strategic consultants and advisors, including manufacturing, nonclinical and clinical development, and regulatory advisors,
to assist us in designing and implementing our research and development and regulatory strategies and plans for our product candidates. Our consultants and advisors may be
employed by employers other than us and may have commitments under consulting or advisory contracts with other entities that may limit their availability to us.

As we seek to advance development of our product candidates, we may need to expand our research and development capabilities and/or contract with third parties to provide
these capabilities for us. As our operations expand, we expect that we will need to manage additional relationships with various strategic partners and other third parties. Future
growth will impose significant added responsibilities on members of management. Our future financial performance and our ability to develop and commercialize our product
candidates and to compete effectively will depend, in part, on our ability to manage any future growth effectively. To that end, we must be able to manage our research and
development  efforts  effectively  and  hire,  train  and  integrate  additional  management,  administrative  and  technical  personnel.  The  hiring,  training  and  integration  of  new
employees may be more difficult, costly and/or time-consuming for us because we have fewer resources than a larger organization. We may not be able to accomplish these
tasks, and our failure to accomplish any of them could prevent us from successfully growing the company.

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If product liability lawsuits are brought against us, we may incur substantial liabilities and may be required to limit commercialization of our product candidates.

As we develop our product candidates. either on our own or in collaboration with others, we will face inherent risks of product liability as a result of the required clinical testing
of such product candidates, and will face an even greater risk if we or our collaborators commercialize any such product candidates. For example, we may be sued if AV-101,
PH94B,  PH10,  any  DR  NCE,  other  product  candidate,  or  RM  product  candidate  we  develop  allegedly  causes  injury  or  is  found  to  be  otherwise  unsuitable  during  product
testing, manufacturing, marketing or sale. Any such product liability claims may include allegations of defects in manufacturing, defects in design, a failure to warn of dangers
inherent in the product, negligence, strict liability, and a breach of warranties. Claims could also be asserted under state consumer protection acts. If we cannot successfully
defend  ourselves  against  product  liability  claims,  we  may  incur  substantial  liabilities  or  be  required  to  limit  commercialization  of  our  product  candidates.  Even  successful
defense would require significant financial and management resources. Regardless of the merits or eventual outcome, liability claims may result in:

● decreased demand for product candidates that we may develop;

● injury to our reputation;

● withdrawal of clinical trial participants;

● costs to defend the related litigation;

● a diversion of management's time and our resources;

● substantial monetary awards to trial participants or patients; or

● product recalls, withdrawals or labeling, marketing or promotional restrictions.

Our  inability  to  obtain  and  retain  sufficient  product  liability  insurance  at  an  acceptable  cost  to  protect  against  potential  product  liability  claims  could  prevent  or  inhibit  the
commercialization  of  products  we  develop. Although  we  maintain  general  and  product  liability  insurance,  any  claim  that  may  be  brought  against  us  could  result  in  a  court
judgment or settlement in an amount that is not covered, in whole or in part, by our insurance or that is in excess of the limits of our insurance coverage. Our insurance policies
also  have  various  exclusions,  and  we  may  be  subject  to  a  product  liability  claim  for  which  we  have  no  coverage.  We  will  have  to  pay  any  amounts  awarded  by  a  court  or
negotiated in a settlement that exceed our coverage limitations or that are not covered by our insurance, and we may not have, or be able to obtain, sufficient capital to pay such
amounts.

As a public company, we incur significant administrative workload and expenses to comply with U.S. regulations and requirements imposed by the Nasdaq Stock Market
concerning corporate governance and public disclosure.

As a public company with common stock listed on the Nasdaq Capital Market, we must comply with various laws, regulations and requirements, including certain provisions of
the Sarbanes-Oxley Act of 2002, as well as rules implemented by the SEC and the Nasdaq Stock Market. Complying with these statutes, regulations and requirements, including
our public company reporting requirements, continues to occupy a significant amount of the time of management and involves significant accounting, legal and other expenses.
Our efforts to comply with these regulations are likely to result in increased general and administrative expenses and management time and attention directed to compliance
activities.

Unfavorable global economic or political conditions could adversely affect our business, financial condition or results of operations.

Our results of operations could be adversely affected by global political conditions, as well as general conditions in the global economy and in the global financial and stock
markets. Global financial and political crises cause extreme volatility and disruptions in the capital and credit markets. A severe or prolonged economic downturn, such as the
recent global financial crisis, could result in a variety of risks to our business, including, weakened demand for our product candidates and our ability to raise additional capital
when needed on acceptable terms, if at all. A weak or declining economy could also strain our suppliers, possibly resulting in supply disruption, or cause our customers to delay
making payments for our services. Any of the foregoing could harm our business and we cannot anticipate all of the ways in which the current economic climate and financial
market conditions could adversely impact our business.

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We or the third parties upon whom we depend may be adversely affected by natural disasters and our business continuity and disaster recovery plans may not adequately
protect us from a serious disaster.

Natural disasters could severely disrupt our operations, and have a material adverse effect on our business, results of operations, financial condition and prospects. If a natural
disaster, power outage or other event occurred that prevented us from using all or a significant portion of our headquarters, that damaged critical infrastructure, such as the
manufacturing facilities of our third-party CMOs, or that otherwise disrupted operations, it may be difficult or, in certain cases, impossible for us to continue our business for a
substantial period of time. The disaster recovery and business continuity plans we have in place may prove inadequate in the event of a serious disaster or similar event. We
may  incur  substantial  expenses  as  a  result  of  the  limited  nature  of  our  disaster  recovery  and  business  continuity  plans,  which  could  have  a  material  adverse  effect  on  our
business.

Our business and operations would suffer in the event of cybersecurity or other system failures.  Our business depends on complex information systems, and any failure to
successfully maintain these systems or implement new systems to handle our changing needs could result in a material disruption of our product candidates’ development
programs or otherwise materially harm our operations. 

In the ordinary course of our business, we collect and store sensitive data, including intellectual property, our proprietary business information and that of our suppliers, as well
as personally identifiable information of employees. Similarly, our third-party CROs, CMOs and other contractors and consultants possess certain of our sensitive data. The
secure maintenance of this information is material to our operations and business strategy. Despite the implementation of security measures, our internal computer systems and
those of our third-party CROs, CMOs and other contractors and consultants are vulnerable to attacks by hackers, damage from computer viruses, unauthorized access, breach
due to employee error, malfeasance or other disruptions, natural disasters, terrorism and telecommunication and electrical failures. Any such attack or breach could compromise
our networks and the information stored there could be accessed, publicly disclosed, lost or stolen. The legislative and regulatory landscape for privacy and data protection
continues to evolve, and there has been an increasing amount of focus on privacy and data protection issues with the potential to affect our business, including recently enacted
laws in a majority of states requiring security breach notification. Thus, any access, disclosure or other loss of information, including our data being breached at our partners or
third-party  providers,  could  result  in  legal  claims  or  proceedings  and  liability  under  laws  that  protect  the  privacy  of  personal  information,  disruption  of  our  operations,  and
damage to our reputation, which could adversely affect our business.

While we have not experienced any such system failure, accident, or security breach to date, if such an event were to occur and cause interruptions in our operations, it could
result in a material disruption of our programs. For example, the loss of clinical trial data for AV-101, PH94B, PH10 or other product candidates could result in delays in our
regulatory approval efforts and significantly increase our costs to recover or reproduce the data. To the extent that any disruption or security breach results in a loss of or damage
to our data or applications or other data or applications relating to our technology or product candidates, or inappropriate disclosure of confidential or proprietary information,
we could incur liabilities and the further development of our product candidates could be delayed.

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

We may acquire additional businesses or product candidates, form strategic alliances or create joint ventures with third parties that we believe will complement or augment our
existing business. If we acquire businesses with promising markets or technologies, we may not be able to realize the benefit of acquiring such businesses if we are unable to
successfully integrate them with our existing operations and company culture. We may encounter numerous difficulties in developing, manufacturing and marketing any new
product  candidates  resulting  from  a  strategic  alliance,  licensing  transaction  or  acquisition  that  delay  or  prevent  us  from  realizing  their  expected  benefits  or  enhancing  our
business. We cannot assure you that, following any such acquisition or licensing transaction, we will achieve the expected synergies to justify the transaction.

Risks Related to Our Intellectual Property Rights

If we are unable to adequately protect our proprietary technology or obtain and maintain issued patents that are sufficient to protect our product candidates, others could
compete against us more directly, which would have a material adverse impact on our business, results of operations, financial condition and prospects.

We strive to protect and enhance the proprietary technologies that we believe are important to our business, including seeking patents intended to cover our product candidates,
their compositions and formulations, their methods of use and methods of manufacturing and any other inventions we consider important to the development of our business.
We also rely on trade secrets to protect aspects of our business that are not amenable to, or that we do not consider appropriate for, patent protection.

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Our success will depend significantly on our ability to obtain and maintain patent and other proprietary protection for commercially important technology, inventions and know-
how related to our business, to defend and enforce our patents, to preserve the confidentiality of our trade secrets and to operate without infringing the valid and enforceable
patents  and  proprietary  rights  of  third  parties.  We  also  rely  on  know-how,  continuing  technological  innovation  and  in-licensing  opportunities  to  develop,  strengthen  and
maintain the proprietary position of our product candidates. We own and have licensed patents and patent applications related to product candidates AV-101, PH94B, PH10 and
also to hPSC technology.

Although we own and have licensed issued and allowed patents and patent applications relating to AV-101, PH94B and PH10 in the U.S., selected countries in the EU and other
jurisdictions, we cannot yet provide any assurances that any of our pending U.S. and additional foreign patent applications will mature into issued patents and, if they do, that
any of our patents will include claims with a scope sufficient to protect our product candidates or otherwise provide any competitive advantage.

Moreover, other parties may have developed technologies that may be related or competitive to our approach and may have filed or may file patent applications and may have
received or may receive patents that may overlap or conflict with our patent properties, for example, either by claiming the same methods or formulations or by claiming subject
matter that could dominate our patent position. Such third-party patent positions may limit or even eliminate our ability to obtain or maintain patent protection.

The uncertainty about adequate protection includes changes to the patent laws through either legislative action to change statutory patent law or court action that may reinterpret
existing law in ways affecting the scope or validity of issued patents. Moreover, relevant laws differ from country-to-country.

The  patent  positions  of  biotechnology  and  pharmaceutical  companies,  including  our  patent  portfolio  with  respect  to  our  product  candidates,  involve  complex  legal  and
factual questions, and, therefore, the issuance, scope, validity and enforceability of any additional patent claims that we may obtain cannot be predicted with certainty.

Our ability to obtain valid and enforceable patents depends in large measure on whether the differences between our technology and the prior art allow our inventions to be
patentable over relevant prior art. Such prior art includes scientific publications, investment blogs, granted patents and published patent applications. Patent uncertainty cannot
be eliminated because of the potential existence of other prior art about which we are currently unaware that may be relevant to our patent applications and patents, which may
prevent a pending patent application from being granted or result in an issued patent being held invalid or unenforceable.

In  addition,  some  patent-related  uncertainty  exists  because  of  the  challenge  in  finding  and  addressing  all  of  the  relevant  and  material  prior  art  in  the  biotechnology  and
pharmaceutical fields. For example, there are numerous reports in the scientific literature of compounds that target similar cellular receptors as certain of our product candidates
or were evaluated in early (often pre-clinical) studies. In addition, even some reports in the trade press and public announcements made us us before the filing date of our AV-
101 patent applications mentioned that AV-101 was in development for certain therapeutic purposes. For example, we published a web post on the NIH clinical trials website
prior  to  our  filing  of  our  initial AV-101  patent  applications,  which  describes  unit  doses  for  a  then  future  study,  but  does  not  mention  treatment  of  depression  and  does  not
provide any preclinical or clinical study data relating to depression or any other medical condition, disease or disorder. This post was not submitted to the United States Patent
and  Trademark  Office  (USPTO)  in  our  two  granted  U.S.  patents  related  to  (i)  unit  dose  formulations  of AV-101  effective  to  treat  depression  and  (ii)  methods  of  treating
depression with AV-101, respectively. However, it was submitted in our pending AV-101 patent applications that make similar claims, and we are considering entering this web
post in the record of the aforementioned two issued U.S. patents. Another source of uncertainty pertains to patent properties that were in-licensed by us for which prior art
submissions were under the control of the licensor. We rely on these licensors to have satisfied the relevant disclosure obligations.

In the event any previously published prior art is deemed to be invalidating prior art, it may cause certain of our issued patents to be invalid and/or unenforceable which would
cause us to lose at least part, and perhaps all, of the patent protection on our product candidates. Such a loss of patent protection would have a material adverse impact on our
business.

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.

The USPTO, the European Patent Office (EPO) and various other foreign governmental patent agencies require compliance with a number of procedural, documentary, fee
payment  and  other  provisions  during  the  patent  process.  There  are  situations  in  which  noncompliance  can  result  in  abandonment  or  lapse  of  a  patent  or  patent  application,
resulting in partial or complete loss of patent rights in the relevant jurisdiction. In such an event, competitors might be able to enter the market earlier than would otherwise have
been the case.

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Even if patents do successfully issue, third parties may challenge the validity, enforceability or scope of such issued patents or any other issued patents we own or license,
which may result in such patents being narrowed, invalidated or held unenforceable.

United  States  and  foreign  patents  and  patent  applications  may  be  subject  to  various  types  of  infringement  and  validity  proceedings,  including  interference  proceedings, ex
parte reexamination, inter partes  review  proceedings,  supplemental  examination  and  challenges  in  district  court.  Patents  may  be  subjected  to  opposition,  post-grant  review,
invalidity actions, or comparable proceedings lodged in various foreign, both national and regional, patent offices or courts. These proceedings could result in loss of the patent
or denial of the patent application or loss or reduction in the scope of one or more of the claims of the patent or patent in such a way that they no longer cover our product
candidates or competitive products.

Furthermore, though an issued patent is presumed valid and enforceable, its issuance is not conclusive as to its validity or its enforceability and it may not provide us with
adequate proprietary protection or competitive advantages against competitors with similar products. Even if a patent issues and is held to be valid and enforceable, competitors
may be able to design around our patents, for example, by using pre-existing or newly developed technology. Other parties may develop and obtain patent protection for more
effective technologies, designs or methods.

If we or one of our licensing partners initiated legal proceedings against a third-party to enforce a patent covering one of our product candidates, including patents related to
AV-101, PH94B or PH10, the defendant could counterclaim that the patent covering our product candidate is invalid and/or unenforceable. In patent litigation in the United
States, defendant counterclaims alleging invalidity and/or unenforceability are commonplace. Grounds for a validity challenge include alleged failures to meet any of several
statutory  requirements,  including  lack  of  novelty,  obviousness  or  non-enablement.  Grounds  for  unenforceability  assertions  include  allegations  that  someone  connected  with
prosecution of the patent withheld relevant information from the USPTO or made a misleading statement during prosecution. Third parties may also raise similar claims before
administrative  bodies  in  the  United  States  or  abroad,  even  outside  the  context  of  litigation.  If  a  defendant  were  to  prevail  on  a  legal  assertion  of  invalidity  and/or
unenforceability, we would lose at least part, and perhaps all, of the patent protection on our product candidates. Such a loss of patent protection would have a material adverse
impact on our business.

In  addition,  such  patent-related  proceedings  may  be  costly.  Thus,  any  patent  properties  that  we  may  own  or  exclusively  license  ultimately  may  not  provide  commercially
meaningful protection against competitors. Furthermore, an adverse decision in an interference proceeding can result in a third party receiving the patent right sought by us,
which in turn could affect our ability to develop, market or otherwise commercialize our product candidates.

We may not be able to prevent the unauthorized disclosure or use of our technical knowledge or trade secrets by consultants, vendors, or former or current employees. The laws
of some foreign countries do not protect our proprietary rights to the same extent as the laws of the United States, and we may encounter significant problems in protecting our
proprietary rights in these countries. If these developments were to occur, they could have a material adverse effect on our sales.

Our  ability  to  enforce  our  patent  rights  also  depends  on  our  ability  to  detect  infringement.  It  is  difficult  to  detect  infringers  who  do  not  advertise  the  components  or
manufacturing  processes  that  are  used  in  their  products.  Moreover,  it  may  be  difficult  or  impossible  to  obtain  evidence  of  infringement  in  a  competitor’s  or  potential
competitor’s product. Any litigation to enforce or defend our patent rights, even if we were to prevail, could be costly and time-consuming and would divert the attention of our
management and key personnel from our business operations. We may not prevail in any lawsuits that we initiate and the damages or other remedies awarded if we were to
prevail may not be commercially meaningful.

In addition, proceedings to enforce or defend our patents could put our patents at risk of being invalidated, held unenforceable, or interpreted narrowly. Such proceedings could
also provoke third parties to assert claims against us, including that some or all of the claims in one or more of our patents are invalid or otherwise unenforceable. If any patents
covering  our  product  candidates  are  invalidated  or  found  unenforceable,  our  financial  position  and  results  of  operations  would  be  materially  and  adversely  impacted.  In
addition, if a court found that valid, enforceable patents held by third parties covered our product candidates, our financial position and  results  of  operations  would  also  be
materially and adversely impacted.

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Overall, the degree of future protection for our proprietary rights is uncertain, and we cannot ensure that:

● any issued patents related to AV-101, PH94B, PH10 or any pending patent applications, if issued and challenged by others, will include or maintain claims having a scope
sufficient to protect AV-101, PH94B, PH10 or any other products or product candidates against generic or other competition, particularly considering that any patent rights
to these compounds per se have expired;

● any of our pending patent applications will issue as patents at all;

● we will be able to successfully commercialize our product candidates, if approved, before our relevant patents expire;

● we were the first to make the inventions covered by each of our patents and pending patent applications;

● we were the first to file patent applications for these inventions;

● others will not develop similar or alternative technologies that do not infringe our patents;

● others will not use pre-existing technology to effectively compete against us;

● any of our patents, if issued, will ultimately be found to be valid and enforceable, including on the basis of prior art relating to our patent applications and patents;

● any  patents  currently  held  or  issued  to  us  in  the  future  will  provide  a  basis  for  an  exclusive  market  for  our  commercially  viable  products,  will  provide  us  with  any

competitive advantages or will not be challenged by third parties;

● we will develop additional proprietary technologies or product candidates that are separately patentable; or

● our commercial activities or products will not infringe upon the patents or proprietary rights of others.

We also rely upon unpatented trade secrets, unpatented know-how and continuing technological innovation to develop and maintain our competitive position, which we seek to
protect,  in  part,  by  confidentiality  agreements  with  our  employees  and  our  collaborators  and  consultants.  It  is  possible  that  technology  relevant  to  our  business  will  be
independently developed by a person that is not a party to such an agreement.  Furthermore, if the employees, collaborators and consultants who are parties to these agreements
breach or violate the terms of these agreements, we may not discover or have adequate remedies for any such breach or violation, and we could lose our trade secrets through
such breaches or violations. Further, our trade secrets could otherwise become known or be independently discovered by our competitors.

Third parties may initiate legal proceedings against us alleging that we infringe their intellectual property rights, which may prevent or delay our product development
efforts and stop us from commercializing candidate products or increase the costs of commercializing them, if approved. Also, we may file counterclaims or initiate other
legal proceedings against third parties to challenge the validity or scope of their intellectual property rights, the outcomes of which also would be uncertain and could have
a material adverse effect on the success of our business.

We cannot assure that our business, product candidates and methods do not or will not infringe the patents or other intellectual property rights of third parties. Third parties may
initiate legal proceedings against us or our licensors or collaborators alleging that we or our licensors or collaborators infringe their intellectual property rights. In addition, we
or our licensors or collaborators may file counterclaims in such proceedings or initiate separate legal proceedings against third parties to challenge the validity or scope of their
intellectual property rights, including in oppositions, interferences, reexaminations, inter partes reviews or derivation proceedings before the United States or other jurisdictions.

Our success will depend in part on our ability to operate without infringing the intellectual property and proprietary rights of third parties. Success also will depend on our ability
to prevail in litigation if we are sued for infringement or to resolve litigation matters with rights and at costs favorable to us.

The pharmaceutical industry is characterized by extensive litigation regarding patents and other intellectual property rights. Other parties may allege that our product candidates
or  the  use  of  our  technologies  infringes  patent  claims  or  other  intellectual  property  rights  held  by  them  or  that  we  are  employing  their  proprietary  technology  without
authorization. As  we  continue  to  develop  and,  if  approved,  commercialize  our  current  product  candidates  and  future  product  candidates,  competitors  may  claim  that  our
technology infringes their intellectual property rights as part of their business strategies designed to impede our successful commercialization. There may be third-party patents
or patent applications with claims to materials, formulations, methods of manufacture or methods for treatment related to the use or manufacture of our product candidates.
Because  patent  applications  can  take  many  years  to  issue,  third  parties  may  have  currently  pending  patent  applications  that  later  result  in  issued  patents  that  our  product
candidates may infringe, or that such third parties assert are infringed by our technologies.

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The foregoing types of proceedings can be expensive and time-consuming and many of our own or our licensors’ or collaborators’ adversaries in these proceedings may have
the  ability  to  dedicate  substantially  greater  resources  to  prosecuting  these  legal  actions  than  we  or  our  licensors  or  collaborators  can.  Our  defense  of  litigation  or  other
proceedings may fail and, even if successful, may result in substantial costs and distract our management and other employees. We may not be able to prevent, alone or with our
licensors, misappropriation of our intellectual property rights, particularly in countries where the laws may not protect those rights as fully as in the United States or European
Union. 

The outcome of intellectual property litigation is subject to uncertainties that cannot be adequately quantified in advance. The coverage of patents is subject to interpretation by
the courts, and the interpretation is not always uniform. If we are sued for patent infringement, we would need to demonstrate that our product candidates, products or methods
either  do  not  infringe  the  patent  claims  of  the  relevant  patent  or  that  the  patent  claims  are  invalid,  and  we  may  not  be  able  to  do  this.  Even  if  we  are  successful  in  these
proceedings,  we  may  incur  substantial  costs  and  the  time  and  attention  of  our  management  and  scientific  personnel  could  be  diverted  in  pursuing  these  proceedings,  which
could have a material adverse effect on us. In addition, we may not have sufficient financial resources to bring these actions to a successful conclusion.

An  unfavorable  outcome  in  the  foregoing  kinds  of  proceedings  could  require  us  or  our  licensors  or  collaborators  to  cease  using  the  related  technology  or  developing  or
commercializing our product candidates, or to attempt to license rights to it from the prevailing party. Our business could be harmed if the prevailing party does not offer us or
our licensors or collaborators a license on commercially reasonable terms or at all. Even if we or our licensors or collaborators obtain a license, it may be non-exclusive, thereby
giving our competitors access to the same technologies licensed to us or our licensors or collaborators.

In addition, we could be found liable for monetary damages, including treble damages and attorneys’ fees, if we are found to have willfully infringed a patent. A finding of
infringement could prevent us from commercializing our product candidates or force us to cease some of our business operations, which could materially harm our business.

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

Patent and other types of intellectual property litigation can involve complex factual and legal questions, and their outcomes are uncertain. Any claim relating to intellectual
property infringement that is successfully asserted against us may require us to pay substantial damages, including treble damages and attorney’s fees if we are found to have
willfully infringed a third party’s patents, for past use of the asserted intellectual property and royalties and other consideration going forward if we are forced to take a license.
In addition, if any such claim is successfully asserted against us and we could not obtain such a license, we may be forced to stop or delay developing, manufacturing, selling or
otherwise commercializing our product candidates.

Patent  litigation  is  costly  and  time-consuming.  We  may  not  have  sufficient  resources  to  bring  these  actions  to  a  successful  conclusion.  Even  if  we  are  successful  in  these
proceedings, we may incur substantial costs and divert management time and attention in pursuing these proceedings, which could have a material adverse effect on us. If we
are unable to avoid infringing the patent rights of others, we may be required to seek a license, defend an infringement action or challenge the validity of the patents in court, or
redesign our products.

In addition, intellectual property litigation or claims could force us to do one or more of the following:

● cease developing, selling or otherwise commercializing our product candidates;

● pay substantial damages for past use of the asserted intellectual property;

● obtain a license from the holder of the asserted intellectual property, which license may not be available on reasonable terms, if at all; and

● in the case of trademark claims, redesign, or rename, some or all of our product candidates to avoid infringing the intellectual property rights of third parties, which may

not be possible and, even if possible, could be costly and time-consuming.

Any of these risks coming to fruition could have a material adverse effect on our business, results of operations, financial condition and prospects.

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

We enter into confidentiality and intellectual property assignment agreements with our employees, consultants, outside scientific collaborators, sponsored researchers and other
advisors. These agreements generally provide that inventions conceived by the party in the course of rendering services to us will be our exclusive property. However, these
agreements  may  not  be  honored  and  may  not  effectively  assign  intellectual  property  rights  to  us.  For  example,  even  if  we  have  a  consulting  agreement  in  place  with  an
academic advisor pursuant to which such academic advisor is required to assign any inventions developed in connection with providing services to us, such academic advisor
may not have the right to assign such inventions to us, as it may conflict with his or her obligations to assign their intellectual property to his or her employing institution.

Litigation  may  be  necessary  to  defend  against  these  and  other  claims  challenging  inventorship  or  ownership.  If  we  fail  in  defending  any  such  claims,  in  addition  to  paying
monetary damages, we may lose valuable intellectual property rights, such as exclusive ownership of, or right to use, valuable intellectual property. Such an outcome could have
a  material  adverse  effect  on  our  business.  Even  if  we  are  successful  in  defending  against  such  claims,  litigation  could  result  in  substantial  costs  and  be  a  distraction  to
management and other employees.

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

Filing, prosecuting and defending patents on product candidates in all countries and jurisdictions throughout the world is prohibitively expensive, and our intellectual property
rights in some countries outside the U.S. could be less extensive than those in the United States, assuming that rights are obtained in the U.S. In addition, the laws of some
foreign countries do not protect intellectual property rights to the same extent as federal and state laws in the U.S. Consequently, we may not be able to prevent third parties
from  practicing  our  inventions  in  all  countries  outside  the  U.S.,  or  from  selling  or  importing  products  made  using  our  inventions  in  and  into  the  United  States  or  other
jurisdictions. The statutory deadlines for pursuing patent protection in individual foreign jurisdictions are based on the priority date of each of our patent applications. For the
pending patent applications relating to AV-101, as well as for other of the patent families that we own or license, the relevant statutory deadlines have not yet expired. Thus, for
each of the patent families that we believe provide coverage for our lead product candidates or technologies, we will need to decide whether and where to pursue protection
outside the U.S.

Competitors may use our technologies in jurisdictions where we do not pursue and obtain patent protection to develop their own products and further, may export otherwise
infringing products to territories where we have patent protection, but enforcement is not as strong as that in the U.S. These products may compete with our products and our
patents  or  other  intellectual  property  rights  may  not  be  effective  or  sufficient  to  prevent  them  from  competing.  Even  if  we  pursue  and  obtain  issued  patents  in  particular
jurisdictions, our patent claims or other intellectual property rights may not be effective or sufficient to prevent third parties from so competing.

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

An unfavorable outcome could require us or our licensors or collaborators to cease using the related technology or developing or commercializing our product candidates, or to
attempt to license rights to it from the prevailing party. Our business could be harmed if the prevailing party does not offer us or our licensors or collaborators a license on
commercially reasonable terms or at all. Even if we or our licensors or collaborators obtain a license, it may be non-exclusive, thereby giving our competitors access to the same
technologies licensed to us or our licensors or collaborators. In addition, we could be found liable for monetary damages, including treble damages and attorneys’ fees, if we are
found to have willfully infringed a patent. A finding of infringement could prevent us from commercializing our product candidates or force us to cease some of our business
operations, which could materially harm our business.

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

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Furthermore,  proceedings  to  enforce  our  patent  rights  in  foreign  jurisdictions  could  result  in  substantial  costs  and  divert  our  efforts  and  attention  from  other  aspects  of  our
business, could put our patents at risk of being invalidated or interpreted narrowly, could put our patent applications at risk of not issuing and could provoke third parties to
assert  claims  against  us.  We  may  not  prevail  in  any  lawsuits  that  we  initiate  and  the  damages  or  other  remedies  awarded,  if  any,  may  not  be  commercially  meaningful.
Accordingly,  our  efforts  to  enforce  our  intellectual  property  rights  around  the  world  may  be  inadequate  to  obtain  a  significant  commercial  advantage  from  the  intellectual
property that we develop or license.

We are dependent, in part, on licensed intellectual property. If we were to lose our rights to licensed intellectual property, we may not be able to continue developing or
commercializing our product candidates, if approved. If we breach any of the agreements under which we license the use, development and commercialization rights to our
product candidates or technology from third parties or, in certain cases, we fail to meet certain development or payment deadlines, we could lose license rights that are
important to our business.

For our PH10, PH94B and certain stem cell technologies, we are a party to a number of license agreements under which we are granted rights to intellectual properties that are
or could become important to our business, and we expect that we may need to enter into additional license agreements in the future. Our existing license agreements impose,
and we expect that future license agreements will impose on us, various development, regulatory and/or commercial diligence obligations, payment of fees, milestones and/or
royalties and other obligations. If we fail to comply with our obligations under these agreements, or we are subject to a bankruptcy, the licensor may have the right to terminate
the license, in which event we would not be able to develop or market products, which could be covered by the license. Our business could suffer, for example, if any current or
future licenses terminate, if the licensors fail to abide by the terms of the license, if the licensed patents or other rights are found to be invalid or unenforceable, or if we are
unable to enter into necessary licenses on acceptable terms.

As we have done previously, we may need to obtain licenses from third parties to advance our research or allow commercialization of our product candidates, and we cannot
provide any assurances that third-party patents do not exist that might be enforced against our current product candidates or future products in the absence of such a license. We
may  fail  to  obtain  any  of  these  licenses  on  commercially  reasonable  terms,  if  at  all.  Even  if  we  are  able  to  obtain  a  license,  it  may  be  non-exclusive,  thereby  giving  our
competitors  access  to  the  same  technologies  licensed  to  us.  In  that  event,  we  may  be  required  to  expend  significant  time  and  resources  to  develop  or  license  replacement
technology. If we are unable to do so, we may be unable to develop or commercialize the affected product candidates, which could materially harm our business and the third
parties owning such intellectual property rights could seek either an injunction prohibiting our sales, or, with respect to our sales, an obligation on our part to pay royalties
and/or other forms of compensation.

Licensing of intellectual property is of critical importance to our business and involves complex legal, business and scientific issues. Disputes may arise between us and our
licensors regarding intellectual property subject to a license agreement, including:

● the scope of rights granted under the license agreement and other interpretation-related issues;

● whether and the extent to which our technology and processes infringe on intellectual property of the licensor that is not subject to the licensing agreement;

● our right to sublicense patent and other rights to third parties under collaborative development relationships;

● our diligence obligations with respect to the use of the licensed technology in relation to our development and commercialization of our product candidates, and what

activities satisfy those diligence obligations; and

● the ownership of inventions and know-how resulting from the joint creation or use of intellectual property by our licensors and us and our partners.

If disputes over intellectual property that we have licensed prevent or impair our ability to maintain our current licensing arrangements on acceptable terms, we may be unable
to successfully develop and commercialize the affected product candidates.

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We have entered into several licenses, both in-license agreements and out-license agreements, to support and leverage our various stem cell technology-related programs. We
may enter into additional license(s) to third-party intellectual property that are necessary or useful to our business. Our current licenses and any future licenses that we may enter
into impose various royalty payments, milestone, and other obligations on us. For example, the licensor may retain control over patent prosecution and maintenance under a
license agreement, in which case, we may not be able to adequately influence patent prosecution or prevent inadvertent lapses of coverage due to failure to pay maintenance
fees. If we fail to comply with any of our obligations under a current or future license agreement, our licensor(s) may allege that we have breached our license agreement and
may accordingly seek to terminate our license with them. In addition, future licensor(s) may decide to terminate our license at will. Termination of any of our current or future
licenses could result in our loss of the right to use the licensed intellectual property, which could materially adversely affect our ability to develop and commercialize a product
candidate or product, if approved, as well as harm our competitive business position and our business prospects.

In addition, if our licensors fail to abide by the terms of the license, if the licensors fail to prevent infringement by third parties, if the licensed patents or other rights are found to
be invalid or unenforceable, or if we are unable to enter into necessary licenses on acceptable terms our business could suffer.

Some intellectual property which we have licensed may have been discovered through government funded programs and thus may be subject to federal regulations such as
“march-in”  rights,  certain  reporting  requirements,  and  a  preference  for  U.S.  industry.  Compliance  with  such  regulations  may  limit  our  exclusive  rights,  subject  us  to
expenditure of resources with respect to reporting requirements, and limit our ability to contract with non-U.S. manufacturers.

Some of the intellectual property rights we have licensed or will license in the future may have been generated through the use of U.S. government funding and may therefore
be subject to certain federal regulations. As a result, the U.S. government may have certain rights to intellectual property embodied in our current or future product candidates
pursuant to the Bayh-Dole Act of 1980 (Bayh-Dole Act). These U.S. government rights in certain inventions developed under a government-funded program include a  non-
exclusive, non-transferable, irrevocable worldwide license to use inventions for any governmental purpose.

In  addition,  the  U.S.  government  has  the  right  to  require  us  to  grant  exclusive,  partially  exclusive,  or  non-exclusive  licenses  to  any  of  these  inventions  to  a  third  party  if  it
determines  that:  (i)  adequate  steps  have  not  been  taken  to  commercialize  the  invention;  (ii)  government  action  is  necessary  to  meet  public  health  or  safety  needs;  or
(iii) government action is necessary to meet requirements for public use under federal regulations (also referred to as “march-in rights”). The U.S. government also has the right
to take title to these inventions if we fail, or the applicable licensor fails, to disclose the invention to the government and fail to file an application to register the intellectual
property within specified time limits. Also, the U.S. government may acquire title to these inventions in any country in which a patent application is not filed within specified
time limits.

Intellectual property generated under a government funded program is further subject to certain reporting requirements, compliance with which may require us, or the applicable
licensor,  to  expend  substantial  resources.  In  addition,  the  U.S.  government  requires  that  any  products  embodying  the  subject  invention  or  produced  through  the  use  of  the
subject invention be manufactured substantially in the U.S. The manufacturing preference requirement can be waived if the owner of the intellectual property can show that
reasonable but unsuccessful efforts have been made to grant licenses on similar terms to potential licensees that would be likely to manufacture substantially in the U.S. or that
under the circumstances domestic manufacture is not commercially feasible. This preference for U.S. manufacturers may limit our ability to contract with non-U.S. product
manufacturers for products covered by such intellectual property.

In the event we apply for additional U.S.government funding, and we discover compounds or drug candidates as a result of such funding, intellectual property rights to such
discoveries may be subject to the applicable provisions of the Bayh-Dole Act.

If  we  do  not  obtain  additional  protection  under  the  Hatch-Waxman  Amendments  and  similar  foreign  legislation  by  extending  the  patent  terms  and  obtaining  data
exclusivity for our product candidates, our business may be materially harmed.

In the U.S., depending upon the timing, duration and specifics of FDA marketing approval of our product candidates, one or more of the U.S.patents we own or license may be
eligible for limited patent term restoration under the Drug Price Competition and Patent Term Restoration Act of 1984, referred to as the Hatch-Waxman Amendments. The
Hatch-Waxman Amendments permit a patent restoration term of up to five years as compensation for patent term lost during product development and the FDA regulatory
review  process.  However,  we  may  not  be  granted  an  extension  because  of,  for  example,  failing  to  apply  within  applicable  deadlines,  failing  to  apply  prior  to  expiration  of
relevant  patents  or  otherwise  failing  to  satisfy  applicable  requirements.  For  example,  we  may  not  be  granted  an  extension,  for  example,  if  the  active  ingredient  of AV-101,
PH94B or PH10 is used in another drug company’s product candidate and that product candidate is the first to obtain FDA approval.

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Moreover, the applicable time period or the scope of patent protection afforded could be less than we request. If we are unable to obtain patent term extension or restoration or
the term of any such extension is less than we request, our competitors may obtain approval of competing products following our patent expiration, and our ability to generate
revenues could be materially adversely affected.

Similar kinds of patent term and regulatory and data protection periods are available outside of the U.S. We will pursue such opportunities to extend the exclusivity of our
products, but we cannot predict the availability of such exclusivity pathways or that we will be successful in pursuing them.

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

As is the case with other pharmaceutical and biotechnology companies, our success is heavily dependent on intellectual property, particularly patents. Obtaining and enforcing
patents in the biotechnology industry involve both technological and legal complexity, and is therefore costly, time-consuming and inherently uncertain. In addition, the U.S.in
recent years enacted and is currently implementing wide-ranging patent reform legislation: the Leahy-Smith America Invents Act, referred to as the America Invents Act. The
America Invents Act includes a number of significant changes to U.S.patent law. These include provisions that affect the way patent applications will be prosecuted and may
also affect patent litigation. It is not yet clear what, if any, impact the America Invents Act will have on the operation of our business. However, the America Invents Act and its
implementation could increase the uncertainties and costs surrounding the prosecution of our patent applications and the enforcement or defense of any patents that may issue
from our patent applications, all of which could have a material adverse effect on our business and financial condition.

In  addition,  recent  U.S.Supreme  Court  rulings  have  narrowed  the  scope  of  patent  protection  available  in  certain  circumstances  and  weakened  the  rights  of  patent  owners  in
certain situations. The full impact of these decisions is not yet known. For example, on March 20, 2012 in Mayo Collaborative Services, DBA Mayo Medical Laboratories, et
al. v. Prometheus Laboratories, Inc., the Court held that several claims drawn to measuring drug metabolite levels from patient samples and correlating them to drug doses were
not patentable subject matter. The decision appears to impact diagnostics patents that merely apply a law of nature via a series of routine steps and it has created uncertainty
around the ability to obtain patent protection for certain inventions. Additionally, on June 13, 2013 in  Association for Molecular Pathology v. Myriad Genetics, Inc., the Court
held that claims to isolated genomic DNA are not patentable, but claims to complementary DNA molecules are patent eligible because they are not a natural product. The effect
of the decision on patents for other isolated natural products is uncertain.

Additionally, on March 4, 2014, the USPTO issued a memorandum to patent examiners providing guidance for examining claims that recite laws of nature, natural phenomena
or natural products under the Myriad and Prometheus decisions. This guidance did not limit the application of Myriad to DNA but, rather, applied the decision to other natural
products. Further, in 2015, in Ariosa Diagnostics, Inc. v. Sequenom, Inc., the Court of Appeals for the Federal Circuit held that methods for detecting fetal genetic defects were
not  patent  eligible  subject  matter.  Other  more  recent  court  decisions  and  related  USPTO  examination  guidelines  must  be  taken  into  account,  particularly  as  they  relate  to
changes in what types of inventions are eligible for patent protection. Foreign patent and intellectual property laws also are evolving and are not predictable as to their impact on
the Company and other biopharmaceutical companies.

In addition to increasing uncertainty regarding our ability to obtain future patents, this combination of events has created uncertainty with respect to the value of patents, once
obtained.  Depending  on  these  and  other  decisions  by  the  U.S.Congress,  the  federal  courts  and  the  USPTO,  the  laws  and  regulations  governing  patents  could  change  in
unpredictable ways that would weaken our ability to obtain new patents or to enforce any patents that may issue in the future.

We may be subject to damages resulting from claims that we or our employees have wrongfully used or disclosed alleged trade secrets of their former employers.

Certain of our current employees have been, and certain of our future employees may have been, previously employed at other biotechnology or pharmaceutical companies,
including our competitors or potential competitors. We also engage advisors and consultants who are concurrently employed at universities or who perform services for other
entities.

Although  we  are  not  aware  of  any  claims  currently  pending  or  threatened  against  us,  we  may  be  subject  to  claims  that  we  or  our  employees,  advisors  or  consultants  have
inadvertently or otherwise used or disclosed intellectual property, including trade secrets or other proprietary information, of a former employer or other third party. We have
and may in the future also be subject to claims that an employee, advisor or consultant performed work for us that conflicts with that person’s obligations to a third party, such
as an employer, and thus, that the third party has an ownership interest in the intellectual property arising out of work performed for us. Litigation may be necessary to defend
against these claims. Even if we are successful in defending against these claims, litigation could result in substantial costs and be a distraction to management. If we fail in
defending such claims, in addition to paying monetary claims, we may lose valuable intellectual property rights or personnel. A loss of key personnel or their work product
could hamper or prevent our ability to commercialize our product candidates, which would materially adversely affect our commercial development efforts.

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Numerous factors may limit any potential competitive advantage provided by our intellectual property rights.

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,  provide  a  barrier  to  entry  against  our  competitors  or  potential  competitors,  or  permit  us  to  maintain  our  competitive  advantage.  Moreover,  if  a  third  party  has
intellectual property rights that cover the practice of our technology, we may not be able to fully exercise or extract value from our intellectual property rights. The following
examples are illustrative:

● others may be able to develop and/or practice technology that is similar to our technology or aspects of our technology but that is not covered by the claims of patents,

should such patents issue from our patent applications;

● we might not have been the first to make the inventions covered by a pending patent application that we own;

● we might not have been the first to file patent applications covering an invention;

● others may independently develop similar or alternative technologies without infringing our intellectual property rights;

● pending patent applications that we own or license may not lead to issued patents;

● patents, if issued, that we own or license may not provide us with any competitive advantages, or may be held invalid or unenforceable or be narrowed, as a result of legal

challenges by our competitors;

● third parties may compete with us in jurisdictions where we do not pursue and obtain patent protection;

● we may not be able to obtain and/or maintain necessary or useful licenses on reasonable terms or at all; and

● the patents of others may have an adverse effect on our business.

Should any of these events occur, they could significantly harm our business and results of operations.

With regard to our stem cell technology, if, instead of identifying DR candidates based on information available to us in the public domain, we seek to in-license DR candidates
from biotechnology, medicinal chemistry and pharmaceutical companies, academic, governmental and nonprofit research institutions, including the NIH, or other third parties,
there can be no assurances that we will obtain material ownership or economic participation rights over intellectual property we may derive from such licenses or similar rights
to the DR NCEs that we may produce and develop. If we are unable to obtain ownership or substantial economic participation rights over intellectual property related to DR
NCEs we produce and develop, our DR business may be adversely affected.

Risks Related to our Securities

If we fail to comply with the continued listing requirements of the Nasdaq Capital Market, our common stock may be delisted and the price of our common stock and our
ability to access the capital markets could be negatively impacted.

On June 17, 2019, we were notified by the Nasdaq Stock Market, LLC (Nasdaq) that we were not in compliance with the minimum bid price requirements set forth in Nasdaq
Listing Rule 5550(a)(2) for continued listing on the Nasdaq Capital Market. Nasdaq Listing Rule 5550(a)(2) requires listed securities to maintain a minimum bid price of $1.00
per  share,  and  Nasdaq  Listing  Rule  5810(c)(3)(A)  provides  that  a  failure  to  meet  the  minimum  bid  price  requirement  exists  if  the  deficiency  continues  for  a  period  of  30
consecutive business days. The notification provided that we had 180 calendar days, or until December 16, 2019, to regain compliance with Nasdaq Listing Rule 5550(a)(2). To
regain compliance, the bid price of our common stock must have a closing bid price of at least $1.00 per share for a minimum of 10 consecutive business days. If we do not
regain  compliance  by  December  16,  2019,  an  additional  180  days  may  be  granted  to  regain  compliance,  so  long  as  we  meet  the  Nasdaq  Capital  Market  continued  listing
requirements (except for the bid price requirement) and notify  Nasdaq in writing of our intention to cure the deficiency during the second compliance period. If we do not
qualify for the second compliance period or fail to regain compliance during the second 180-day period, then Nasdaq will notify us of its determination to delist our common
stock, at which point we will have an opportunity to appeal the delisting determination to a hearings panel.

No  assurance  can  be  given  that  we  will  meet  applicable  Nasdaq  continued  listing  standards.  Failure  to  meet  applicable  Nasdaq  continued  listing  standards  could  result  in  a
delisting of our common stock, which could materially reduce the liquidity of our common stock and result in a corresponding material reduction in the price of our common
stock. In addition, delisting could harm our ability to raise capital through alternative financing sources on terms acceptable to us, or at all, and may result in the inability to
advance our drug development programs, potential loss of confidence by investors and employees, and fewer business development opportunities.

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Market volatility may affect our stock price and the value of your investment.

The market price for our common stock, similar to other biopharmaceutical companies, is likely to be highly volatile. The market price of our common stock may fluctuate
significantly in response to a number of factors, most of which we cannot control, including, among others:

● plans for, progress of or results from nonclinical and clinical development activities related to our product candidates;

● the failure of the FDA or other regulatory authority to approve our product candidates;

● announcements of new products, technologies, commercial relationships, acquisitions or other events by us or our competitors;

● the success or failure of other CNS therapies;

● regulatory or legal developments in the U.S. and other countries;

● announcements regarding our intellectual property portfolio;

● failure of our product candidates, if approved, to achieve commercial success;

● fluctuations in stock market prices and trading volumes of similar companies;

● general market conditions and overall fluctuations in U.S. equity markets;

● variations in our quarterly operating results;

● changes in our financial guidance or securities analysts’ estimates of our financial performance;

● changes in accounting principles;

● our ability to raise additional capital and the terms on which we can raise it;

● sales or purchases of large blocks of our common stock, including sales or purchases by our executive officers, directors and significant stockholders;

● establishment of short positions by holders or non-holders of our stock or warrants;

● additions or departures of key personnel;

● discussion of us or our stock price by the press and by online investor communities; and

● other risks and uncertainties described in these risk factors.

Future sales and issuances of our common stock may cause our stock price to decline.

Sales or issuances of a substantial number of shares of our common stock in the public market, or the perception that such sales or issuances are occurring or might occur, could
significantly reduce the market price of our common stock and impair our ability to raise adequate capital through the sale of additional equity securities.

The stock market in general, and small biopharmaceutical companies like ours in particular, have frequently experienced significant volatility in the market prices for securities
that often has been unrelated to the operating performance of the underlying companies. These broad market and industry fluctuations may adversely affect the market price of
our  common  stock,  regardless  of  our  actual  operating  performance.  In  certain  situations  in  which  the  market  price  of  a  stock  has  been  volatile,  holders  of  that  stock  have
instituted securities class action litigation against the company that issued the stock. If any of our stockholders were to bring a lawsuit against us, the defense and disposition of
the  lawsuit  could  be  costly  and  divert  the  time  and  attention  of  our  management  and  harm  our  operating  results. Additionally,  if  the  trading  volume  of  our  common  stock
remains low and limited there will be an increased level of volatility and you may not be able to generate a return on your investment.

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A  portion  of  our  total  outstanding  shares  are  restricted  from  immediate  resale  but  may  be  sold  into  the  market  in  the  near  future.  Future  sales  of  shares  by  existing
stockholders could cause our stock price to decline, even if our business is doing well.

Sales of a substantial number of shares of our common stock in the public market could occur at any time. These sales, or the perception in the market that the holders of a
large  number  of  shares  intend  to  sell  shares,  could  reduce  the  market  price  of  our  common  stock.  Historically,  there  has  been  a  limited  public  market  for  shares  of  our
common stock. Future sales and issuances of a substantial number of shares of our common stock in the public market, including shares issued upon the conversion of our
Series A Preferred, Series B Preferred or Series C Preferred, and the exercise of outstanding options and warrants for common stock which are issuable upon exercise, in the
public market, or the perception that these sales and issuances are occurring or might occur, could significantly reduce the market price for our common stock and impair our
ability to raise adequate capital through the sale of equity securities.

A limited number of institutional stockholders could limit your ability to influence the outcome of key transactions, including changes in control.

A limited number of institutional stockholders own a substantial portion of our outstanding preferred stock, consisting of shares of our Series A Preferred, Series B Preferred,
and Series C Preferred, all of which is convertible, at the option of the holders (but subject to certain beneficial ownership restrictions), into a substantial number of shares of
our common stock.  Accordingly, should a few of these institutional holders convert their shares of preferred stock into common stock, such stockholders may exert influence
over  us  and  over  the  outcome  of  any  corporate  actions  requiring  approval  of  holders  of  our  common  stock,  including  the  election  of  directors  and  amendments  to  our
organizational documents, such as increases in our authorized shares of common stock, any merger, consolidation or sale of all or substantially all of our assets or any other
significant corporate transactions. These stockholders may also delay or prevent a change of control of the Company, even if such a change of control is approved by our Board
and  would  benefit  our  other  stockholders.  Furthermore,  the  interests  of  such  institutional  stockholders  may  not  always  coincide  with  your  interests  or  the  interests  of  other
common stockholders and an institutional holder may act in a manner that advances its best interests and not necessarily those of other stockholders.

If equity research analysts do not publish research or reports about our business or if they issue unfavorable commentary or downgrade our common stock, the price of our
common stock could decline.

The trading market for our common stock relies in part on the research and reports that equity research analysts publish about us and our business. We do not control these
analysts.  The  price  of  our  common  stock  could  decline  if  one  or  more  equity  research  analysts  downgrade  our  common  stock  or  if  such  analysts  issue  other  unfavorable
commentary or cease publishing reports about us or our business.

There may be additional issuances of shares of preferred stock in the future.

Our Restated Articles of Incorporation, as amended (the Articles), permit us to issue up to 10.0 million shares of preferred stock. Our Board has authorized the issuance of (i)
500,000 shares of Series A Preferred, all of which shares are issued and outstanding at March 31, 2019; (ii) 4.0 million shares of Series B 10% Convertible Preferred stock, of
which  approximately  1.2  million  shares  remain  issued  and  outstanding  at  March  31,  2019;  and  (iii)  3.0  million  shares  of  Series  C  Convertible  Preferred  Stock,  of  which
approximately 2.3 million shares are issued and outstanding at March 31, 2019. Our Board could authorize the issuance of additional series of preferred stock in the future and
such  preferred  stock  could  grant  holders  preferred  rights  to  our  assets  upon  liquidation,  the  right  to  receive  dividends  before  dividends  would  be  declared  to  holders  of  our
common stock, and the right to the redemption of such shares, possibly together with a premium, prior to the redemption of the common stock. In the event and to the extent that
we  do  issue  additional  preferred  stock  in  the  future,  the  rights  of  holders  of  our  common  stock  could  be  impaired  thereby,  including  without  limitation,  with  respect  to
liquidation.

We do not intend to pay dividends on our common stock and, consequently, our stockholders’ ability to achieve a return on their investment will depend on appreciation in
the price of our common stock.

We have never declared or paid any cash dividend on our common stock and do not currently intend to do so in the foreseeable future. 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  in  the  foreseeable  future.
Therefore, the success of an investment in shares of our common stock will depend upon any future appreciation in their value. There is no guarantee that shares of our common
stock will appreciate in value or even maintain the price at which our stockholders purchased them.

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We incur significant costs to ensure compliance with corporate governance, federal securities law and accounting requirements.

We are subject to the reporting requirements of the Securities Exchange Act of 1934, as amended ( Exchange Act), which requires that we file annual, quarterly and current
reports with respect to our business and financial condition, and the rules and regulations implemented by the SEC, the Sarbanes-Oxley Act of 2002, the Dodd-Frank Act, and
the  Public  Company Accounting  Oversight  Board,  each  of  which  imposes  additional  reporting  and  other  obligations  on  public  companies.    We  have  incurred  and  will
continue  to  incur  significant  costs  to  comply  with  these  public  company  reporting  requirements,  including  accounting  and  related  audit  costs,  legal  costs  to  comply  with
corporate  governance  requirements  and  other  costs  of  operating  as  a  public  company.  These  legal  and  financial  compliance  costs  will  continue  to  require  us  to  divert  a
significant amount of resources that we could otherwise use to achieve our research and development and other strategic objectives.

The filing and internal control reporting requirements imposed by federal securities laws, rules and regulations on companies that are not “smaller reporting companies” under
federal securities laws are rigorous and, once we are no longer a smaller reporting company, we may not be able to meet them, resulting in a possible decline in the price of our
common stock and our inability to obtain future financing. Certain of these requirements may require us to carry out activities we have not done previously and complying with
such requirements may divert management’s attention from other business concerns, which could have a material adverse effect on our business, results of operations, financial
condition and cash flows. Any failure to adequately comply with applicable federal securities laws, rules or regulations could subject us to fines or regulatory actions, which
may materially adversely affect our business, results of operations and financial condition.

In addition, changing laws, regulations and standards relating to corporate governance and public disclosure are creating uncertainty for public companies, increasing legal and
financial compliance costs and making some activities more time consuming. These laws, regulations and standards are subject to varying interpretations, in many cases due to
their lack of specificity, and, as a result, their application in practice may evolve over time as new guidance is provided by regulatory and governing bodies. This could result in
continuing  uncertainty  regarding  compliance  matters  and  higher  costs  necessitated  by  ongoing  revisions  to  disclosure  and  governance  practices.  We  will  continue  to  invest
resources to comply with evolving laws, regulations and standards, however this investment may result in increased general and administrative expenses and a diversion of
management’s time and attention from revenue-generating activities to compliance activities. If our efforts to comply with new laws, regulations and standards differ from the
activities intended by regulatory or governing bodies due to ambiguities related to their application and practice, regulatory authorities may initiate legal proceedings against us
and our business may be adversely affected.

 Item 1B.  Unresolved Staff Comments

The disclosures in this section are not required since we qualify as a smaller reporting company.

 Item 2.  Properties

Our corporate headquarters and laboratories are located at 343 Allerton Avenue, South San Francisco, California 94080, where we occupy approximately 10,900 square feet of
office and lab space under a lease expiring on July 31, 2022. We believe that our facilities are suitable and adequate for our current and foreseeable needs.

 Item 3.  Legal Proceedings

None.

 Item 4.  Mine Safety Disclosures

Not applicable.

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 Item 5.  Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Market Information

PART II

Our common stock was approved for listing and has traded since May 11, 2016 on The Nasdaq Capital Market under the symbol “VTGN”. From June 21, 2011 through May
10, 2016, our common stock traded on the OTC Marketplace, under the symbol “VSTA”.  There was no established trading market for our common stock prior to June 21,
2011.

Shown below is the range of high and low sales prices for our common stock for the periods indicated as reported by the Nasdaq Capital Market. The market quotations reflect
inter-dealer prices, without retail mark-up, mark-down or commissions and may not necessarily represent actual transactions.  

Year Ending March 31, 2019
First quarter ending June 30, 2018
Second quarter ended September 30, 2018
Third quarter ended December 31, 2018
Fourth quarter ended March 31, 2019

Year Ending March 31, 2018
First quarter ending June 30, 2017
Second quarter ended September 30, 2017
Third quarter ended December 31, 2017
Fourth quarter ended March 31, 2018

High

Low

  $
  $
  $
  $

  $
  $
  $
  $

1.76 
1.53 
2.44 
1.86 

2.40 
2.05 
2.65 
1.79 

  $
  $
  $
  $

  $
  $
  $
  $

0.81 
1.20 
1.26 
1.05 

1.72 
1.53 
0.69 
0.86 

On June 24, 2019 the closing price of our common stock on the Nasdaq Capital Market was $0.7544 per share.

As of June 24, 2019, we had 42,622,965 shares of common stock outstanding and approximately 6,000 stockholders of record.  On the same date, two stockholders held all
500,000  outstanding  restricted  shares  of  our  Series A  Preferred  Stock,  which  shares  are  convertible  into  750,000  shares  of  common  stock;  two  stockholders  held  1,160,240
outstanding  shares  of  our  Series  B  10%  Convertible  Preferred  Stock,  which  shares  are  convertible  into  1,160,240  shares  of  common  stock;  and  one  stockholder  held  all
2,318,012 outstanding shares of our Series C Preferred stock, which shares are convertible into 2,318,012 shares of common stock.

Dividend Policy

We  have  never  paid  or  declared  any  cash  dividends  on  our  common  stock,  and  we  do  not  anticipate  paying  any  cash  dividends  on  our  common  stock  in  the  foreseeable
future. Our Series B Preferred accrues dividends at a rate of 10% per annum, which dividends are payable solely in unregistered shares of our common stock at the time the
Series B Preferred is converted into common stock.

Recent Sales of Unregistered Securities

None.

 Item 6.  Selected Financial Data

The disclosures in this section are not required because we qualify as a smaller reporting company under federal securities laws.

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 Item 7.  Management’s Discussion and Analysis of Financial Condition and Results of Operations

Cautionary Note Regarding Forward-Looking Statements

This Annual Report on Form 10-K (Annual Report) includes forward-looking statements. All statements contained in this Annual Report other than statements of historical fact,
including statements regarding our future results of operations and financial position, our business strategy and plans, and our objectives for future operations, are forward-
looking statements. The words “believe,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “expect” and similar expressions are intended to identify forward-looking
statements. We have based these forward- looking statements largely on our current expectations and projections about future events and trends that we believe may affect our
financial  condition,  results  of  operations,  business  strategy,  short-term  and  long-term  business  operations  and  objectives,  and  financial  needs.  These  forward-looking
statements  are  subject  to  a  number  of  risks,  uncertainties  and  assumptions.  Our  business  is  subject  to  significant  risks  including,  but  not  limited  to,  our  ability  to  obtain
additional financing, the results of our research and development efforts, the results of non-clinical and clinical testing, the effect of regulation by the United States Food and
Drug Administration (FDA) and other agencies, the impact of competitive products, product development, commercialization and technological difficulties, the effect of our
accounting  policies,  and  other  risks  as  detailed  in  the  section  entitled  “Risk  Factors”  in  this  Annual  Report.    Further,  even  if  our  product  candidates  appear  promising  at
various  stages  of  development,  our  share  price  may  decrease  such  that  we  are  unable  to  raise  additional  capital  without  significant  dilution  or  other  terms  that  may  be
unacceptable to our management, Board of Directors and stockholders.

Moreover, we operate in a very competitive and rapidly changing environment. New risks emerge from time to time. It is not possible for our management or Board to predict
all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially
from  those  contained  in  any  forward-looking  statements  we  may  make.  In  light  of  these  risks,  uncertainties  and  assumptions,  the  future  events  and  trends  discussed  in  this
Annual Report may not occur and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statements.

You  should  not  rely  upon  forward-looking  statements  as  predictions  of  future  events.  The  events  and  circumstances  reflected  in  the  forward-looking  statements  may  not  be
achieved or occur. Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, levels of activity,
performance or achievements. We are under no duty to update any of these forward-looking statements after the date of this Annual Report or to conform these statements to
actual results or revised expectations. If we do update one or more forward-looking statements, no inference should be drawn that we will make additional updates with respect
to those or other forward-looking statements.

Business Overview

We  are  a  clinical-stage  biopharmaceutical  company  committed  to  developing  and  commercializing  new  generation  medicines  to  treat  diseases  and  disorders  of  the  central
nervous system (CNS) with high unmet need. Our portfolio of three clinical-stage product candidates is currently focused predominantly on major depressive disorder (MDD)
and social anxiety disorder (SAD).

MDD is a serious neurobiologically-based mood disorder, affecting approximately 16 million adults in the United States, according to the U.S. National Institutes of Health
(NIH). Individuals diagnosed with MDD exhibit depressive symptoms, such as a depressed mood or a loss of interest or pleasure in daily activities, for more than a two-week
period, as well as impaired social, occupational, educational or other important functioning which has a negative impact on their quality of life. Globally, MDD affects nearly
300 million people of all ages and is the leading cause of disability worldwide.

SAD affects as many as 15 million Americans and is the third most common psychiatric condition after depression and substance abuse. SAD is characterized by a persistent
and unreasonable fear of one or more social or performance situations, where the individual fears that he or she will act in a way or show symptoms that will be embarrassing or
humiliating, leading to avoidance of the situations when possible and anxiety or distress when they occur. These fears have a significant impact on the person's employment,
social activities and overall quality of life. Only three drugs, all antidepressants, are approved by the U.S Food and Drug Administration ( FDA) for treatment of SAD. However,
for treatment of both MDD and SAD, current oral antidepressants (ADs) have slow onset of effect (often several weeks to months) and significant side effects that may make
them inadequate treatment alternatives for many individuals affected by MDD and SAD.

Our most advanced product candidate, PH94B neuroactive nasal spray, is fundamentally different from all current treatments for SAD. Developed from proprietary compounds
called pherines and administered as a nasal spray, PH94B activates nasal chemosensory receptors that trigger neural circuits in the brain that suppress fear and anxiety. In a
published double-blind, placebo-controlled Phase 2 clinical trial, PH94B neuroactive nasal spray was significantly more effective than placebo in reducing public-speaking and
social interaction anxiety on laboratory challenges of individuals with SAD. Its novel mechanism of pharmacological action, rapid-onset of therapeutic effects and exceptional
safety and tolerability profile in clinical trials to date make PH94B neuroactive nasal spray an excellent product candidate with potential to become the first FDA-approved on-
demand, as-needed, or PRN, treatment for SAD.

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AV-101  (4-Cl-KYN),  one  of  our  two  product  candidates  for  MDD,  belongs  to  a  new  generation  of  investigational  medicines  in  neuropsychiatry  and  neurology  known  as
NMDA (N-methyl-D-aspartate) glutamate receptor modulators. The NMDA receptor is a pivotal receptor in the brain and abnormal NMDA function is associated with multiple
CNS diseases and disorders, including MDD, chronic neuropathic pain, epilepsy, Parkinson's disease levodopa-induced dyskinesia and many others. AV-101 is an oral prodrug
of 7-Cl-KYNA which binds uniquely at the glycine site of the NMDA receptor and has potential to be a new at-home treatment for MDD. AV-101 is currently in Phase 2
development in the U.S. for MDD. ELEVATE is our Phase 2 multicenter, multi-dose, double blind, placebo-controlled clinical study to evaluate the efficacy and safety of AV-
101  as  an  add-on  treatment  for  MDD  in  adult  patients  with  an  inadequate  therapeutic  response  to  current  FDA-approved ADs  (the ELEVATE  Study).  Dr.  Maurizio  Fava,
Professor  of  Psychiatry  at  Harvard  Medical  School  and  Director,  Division  of  Clinical  Research,  Massachusetts  General  Hospital  ( MGH)  Research  Institute,  is  the  Principal
Investigator of the ELEVATE Study assisting our internal team, which is led by Mark Smith, MD, PhD, our Chief Medical Officer. Dr. Fava was the co-Principal Investigator
with Dr. A. John Rush of the STAR*D study, the largest clinical trial conducted in depression to date, whose findings were published in journals such as the  New  England
Journal of Medicine (NEJM) and the Journal of the American Medical Association (JAMA). We currently anticipate top line results from the ELEVATE Study in the second half
of 2019. The FDA has granted Fast Track designation for development of AV-101 as a potential add-on treatment of MDD.

Our  other  product  candidate  for  MDD  in  Phase  2  development  for  MDD  is  PH10  neuroactive  nasal  spray.  PH10  is  a  potential  first-in-class,  CNS  neurosteroid  nasal  spray
administered  in  microgram  doses  for  MDD.  PH10  nasal  spray  activates  nasal  chemosensory  receptors  that,  in  turn,  engage  GABA  (gamma-aminobutyric  acid)  and  CRH
(corticotropin-releasing hormone) neurons in the limbic amygdala system. The activation of these neural circuits is believed to have the potential to lead to rapid antidepressant
effects without psychological side effects, systemic exposure or safety concerns often associated with current antidepressants. Based on positive results of a small exploratory
Phase 2a study in MDD in which rapid-onset antidepressant effects were observed without psychological side effects or systemic exposure, we are preparing for planned Phase
2b clinical development of PH10 as a first-line treatment for MDD.

Additional  potential  indications  for  PH94B  include  post-tramautic  stress  disorder  (PTSD)  and  general  anxiety  disorder  (GAD)  and  others  neuropsychiatric  indications.
Additional potential indications for AV-101 include as a non-addictive, non-sedating treatment of chronic neuropathic pain ( CNP), epilepsy, and to reduce dyskinesia induced
by levodopa therapy for Parkinson’s disease (PD LID).

In addition to our CNS business, we have two pipeline-enabling programs through our wholly-owned subsidiary, VistaStem Therapeutics ( VistaStem). VistaStem is focused on
applying pluripotent stem cell (hPSC)  technology  to  discover,  rescue,  develop  and  commercialize  proprietary  new  chemical  entities  (NCEs)  for  CNS  and  other  diseases  and
regenerative  medicine  (RM)  involving  hPSC-derived  blood,  cartilage,  heart  and  liver  cells.  Our  internal  drug  rescue  programs  are  designed  to  utilize CardioSafe  3D,  our
customized cardiac bioassay system, to discover and develop small molecule NCEs for our CNS pipeline or for out-licensing. To advance potential RM applications of our
cardiac  stem  cell  technology,  we  have  sublicensed  to  BlueRock  Therapeutics  LP,  a  next  generation  cell  therapy  and  RM  company  established  by  Bayer AG  and  Versant
Ventures (BlueRock Therapeutics),  rights  to  certain  proprietary  technologies  relating  to  the  production  of  cardiac  stem  cells  for  the  treatment  of  heart  disease  (the BlueRock
Agreement). In a manner similar to the BlueRock Agreement, we may pursue additional collaborations or licensing transactions involving blood, cartilage, and/or liver cells
derived from hPSCs for cell-based therapy, cell repair therapy, RM and/or tissue engineering.

Critical Accounting Policies and Estimates

We consider certain accounting policies related to revenue recognition, impairment of long-lived assets, research and development, stock-based compensation, warrant liability
and income taxes to be critical accounting policies that require the use of significant judgments and estimates relating to matters that are inherently uncertain and may result in
materially different results under different assumptions and conditions. The preparation of financial statements in conformity with United States generally accepted accounting
principles (GAAP)  requires  us  to  make  estimates  and  assumptions  that  affect  the  amounts  reported  in  the  financial  statements  and  accompanying  notes  to  the  consolidated
financial statements. These estimates include useful lives for property and equipment and related depreciation calculations, and assumptions for valuing options, warrants and
other stock-based compensation. Our actual results could differ from these estimates.

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Revenue Recognition

We have historically generated revenue principally from collaborative research and development arrangements, licensing and technology access fees and government grants.
We adopted Accounting Standards Update ( ASU)  No.  2014-09, Revenue  from  Contracts  with  Customers  (Topic  606)  and  its  related  amendments,  collectively  referred  to  as
ASC (Accounting Standards Codification)  Topic  606,  as  of April  1,  2018,  using  the  modified  retrospective  transition  method. At  adoption  and  currently,  we  have  only  the
BlueRock Agreement as a potential revenue generating arrangement. Upon adoption of ASC Topic 606, there was no change to the units of accounting previously identified
with  respect  to  the  BlueRock Agreement  under  legacy  GAAP,  which  are  now  considered  performance  obligations  under ASC  Topic  606,  and  there  was  no  change  to  the
revenue recognition pattern for the performance obligation. Accordingly, there was no cumulative effect change to our opening accumulated deficit balance upon the adoption of
ASC Topic 606. We did not recognize any revenue in our fiscal years ended March 31, 2019 or 2018.

Under ASC Topic 606, we recognize revenue when our customer obtains control of promised goods or services, in an amount that reflects the consideration that 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  Topic  606,  we  perform  the
following five steps: (i) identify the contract with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price, including variable
consideration,  if  any;  (iv)  allocate  the  transaction  price  to  the  performance  obligations  in  the  contract;  and  (v)  recognize  revenue  when  (or  as)  we  satisfy  a  performance
obligation.  We  only  apply  the  five-step  model  to  contracts  when  it  is  probable  that  we  will  collect  the  consideration  to  which  we  are  entitled  in  exchange  for  the  goods  or
services we transfer to a customer.

Once a contract is determined to be within the scope of Topic 606, we assesses the goods or services promised within each contract and determine those that are performance
obligations. Arrangements that include rights to additional goods or services that are exercisable at a customer’s discretion are generally considered options. We assess whether
these options provide a material right to the customer and if so, they are considered performance obligations. The exercise of a material right may be accounted for as a contract
modification or as a continuation of the contract for accounting purposes.

We assess whether each promised good or service is distinct for the purpose of identifying the performance obligations in the contract. This assessment involves subjective
determinations and requires judgments about the individual promised goods or services and whether such are separable from the other aspects of the contractual relationship.
Promised goods and services are considered distinct provided that: (i) the customer can benefit from the good or service either on its own or together with other resources that
are readily available to the customer (that is, the good or service is capable of being distinct) and (ii) our promise to transfer the good or service to the customer is separately
identifiable from other promises in the contract (that is, the promise to transfer the good or service is distinct within the context of the contract). In assessing whether a promised
good or service is distinct in the evaluation of a collaboration arrangement subject to Topic 606, we consider factors such as the research, manufacturing and commercialization
capabilities  of  the  collaboration  partner  and  the  availability  of  the  associated  expertise  in  the  general  marketplace.  We  also  consider  the  intended  benefit  of  the  contract  in
assessing whether a promised good or service is separately identifiable from other promises in the contract. If a promised good or service is not distinct, we are required to
combine that good or service with other promised goods or services until we identifies a bundle of goods or services that is distinct.

The transaction price is then determined and allocated to the identified performance obligations in proportion to their standalone selling prices (SSP) on a relative SSP basis.
SSP is determined at contract inception and is not updated to reflect changes between contract inception and satisfaction of the performance obligations. Determining the SSP
for  performance  obligations  requires  significant  judgment.  In  developing  the  SSP  for  a  performance  obligation,  we  consider  applicable  market  conditions  and  relevant
Company-specific factors, including factors that were contemplated in negotiating the agreement with the customer and estimated costs. In certain circumstances, we may apply
the residual method to determine the SSP of a good or service if the standalone selling price is considered highly variable or uncertain. We validate the SSP for performance
obligations  by  evaluating  whether  changes  in  the  key  assumptions  used  to  determine  the  SSP  will  have  a  significant  effect  on  the  allocation  of  arrangement  consideration
between multiple performance obligations.

If the consideration promised in a contract includes a variable amount, we estimate the amount of consideration to which we will be entitled in exchange for transferring the
promised goods or services to a customer. We determine the amount of variable consideration by using the expected value method or the most likely amount method. We include
the unconstrained amount of estimated variable consideration in the transaction price. The amount included in the transaction price is constrained to the amount for which it is
probable  that  a  significant  reversal  of  cumulative  revenue  recognized  will  not  occur. At  the  end  of  each  subsequent  reporting  period,  we  re-evaluate  the  estimated  variable
consideration  included  in  the  transaction  price  and  any  related  constraint,  and  if  necessary,  adjust  our  estimate  of  the  overall  transaction  price. Any  such  adjustments  are
recorded on a cumulative catch-up basis in the period of adjustment.

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If an arrangement includes development and regulatory milestone payments, we evaluate whether the  milestones  are  considered  probable  of  being  reached  and  estimate  the
amount to be included in the transaction price using the most likely amount method. If it is probable that a significant revenue reversal would not occur, the associated milestone
value is included in the transaction price. Milestone payments that are not within our control or the licensee’s control, such as regulatory approvals, are generally not considered
probable of being achieved until those approvals are received.

In  determining  the  transaction  price,  we  adjust  consideration  for  the  effects  of  the  time  value  of  money  if  the  timing  of  payments  provides  us  with  a  significant  benefit  of
financing. We do not assess whether a contract has a significant financing component if the expectation at contract inception is such that the period between payment by the
licensee and the transfer of the promised goods or services to the licensee will be one year or less. For arrangements with licenses of intellectual property that include sales-
based royalties, including milestone payments based on the level of sales, and the license is deemed to be the predominant item to which the royalties relate, we recognize
royalty revenue and sales-based milestones at the later of (i) when the related sales occur, or (ii) when the performance obligation to which the royalty has been allocated has
been satisfied.

We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) each performance obligation is satisfied
at a point in time or over time, and if over time, based on the use of an output or input method.

Impairment of Long-Lived Assets

In accordance with ASC 360-10, Property, Plant & Equipment—Overall, we review long-lived assets for impairment whenever events or changes in circumstances indicate that
the carrying amount of property and equipment may not be recoverable. Determination of recoverability is based on an estimate of undiscounted future cash flows resulting
from the use of the asset and its eventual disposition. In the event that such cash flows are not expected to be sufficient to recover the carrying amount of the assets, we write
down the assets to their estimated fair values and recognize the loss in the Consolidated Statements of Operations and Comprehensive Loss.

Research and Development Expenses

Research and development expenses are composed of both internal and external costs.  Internal costs include salaries and employment-related expenses, including stock-based
compensation expense, of scientific personnel and direct project costs.  External research and development expenses consist primarily of costs associated with clinical and non-
clinical development of AV-101, PH94B and PH10, stem cell research and development costs, and costs related to the application and prosecution of patents related to AV-101,
PH94B, PH10 and our stem cell technology platform. All such costs are charged to expense as incurred.

We also record accruals for estimated ongoing clinical trial costs. Clinical trial costs represent costs incurred by contract research organizations (CROs) and clinical trial sites.
Progress payments are generally made to CROs, clinical sites, investigators and other professional service providers. We analyze the progress of the clinical trial, including
levels of subject enrollment, invoices received and contracted costs when evaluating the adequacy of accrued liabilities. Significant judgments and estimates must be made in
determining the clinical trial accrual in any reporting period. Actual results could differ from those estimates under different assumptions. Revisions are charged to research and
development expense in the period in which the facts that give rise to the revision become known.

Costs incurred in obtaining product or technology licenses are charged immediately to research and development expense if the product or technology licensed has not achieved
regulatory  approval  or  reached  technical  feasibility  and  has  no  alternative  future  uses.  In  September  2018,  we  acquired  an  exclusive  license  to  develop  and  commercialize
PH94B and an option to acquire a license to develop and commercialize PH10 by issuing an aggregate of 1,630,435 unregistered shares of our common stock having a fair
market value of $2,250,000. In October 2018, we exercised our option to acquire an exclusive license to develop and commercialize PH10 by issuing 925,926 shares of our
unregistered common stock having a fair market value of $2,000,000. Since, at the date of each acquisition, neither product candidate had achieved regulatory approval and
each will require significant additional development and expense, we recorded the costs related to acquiring the licenses and the option as research and development expense.

Stock-Based Compensation

We recognize non-cash compensation expense for all stock-based awards to employees based on the grant date fair value of the award.  We record this expense over the period
during which the employee is required to perform services in exchange for the award, which generally represents the scheduled vesting period.  We have granted no restricted
stock awards, nor do we have any awards with market or performance conditions.  For option grants to non-employees, we have historically re-measured the fair value of the
awards  as  they  vest  and  any  resulting  increase  in  value  has  been  recognized  as  an  expense  during  the  period  over  which  the  services  are  performed.  Noncash  expense
attributable to compensatory grants of stock to non-employees is determined by the quoted market price of the stock on the date of grant and is either recognized as fully-earned
at the time of the grant or expensed ratably over the term of the related service agreement, depending on the terms of the specific agreement.

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We use the Black-Scholes option pricing model to estimate the fair value of stock-based awards as of the grant date. The Black-Scholes model is complex and dependent upon
key data input estimates. The primary data inputs with the greatest degree of judgment are the expected term of the stock options and the estimated volatility of our stock price.
The Black-Scholes model is highly sensitive to changes in these two inputs. The expected term of the options represents the period of time that options granted are expected to
be outstanding. We use the simplified method in accordance with guidance provided by the Securities and Exchange Commission (SEC) to estimate the expected term as an
input into the Black-Scholes option pricing model. We determine expected volatility using the historical method, which, because of the limited period during which our stock
has been publicly traded and its historically limited trading volume, is based on the historical daily trading data of the common stock of a peer group of public companies over
the expected term of the option.

Warrants Issued in Connection with Equity Financing

We generally account for warrants issued in connection with equity financings as a component of equity, unless there is a deemed possibility that we may have to settle the
warrants  in  cash  or  the  warrants  contain  other  features  requiring  them  to  be  treated  as  liabilities.  For  warrants  issued  with  the  possibility  of  cash  settlement  or  otherwise
requiring liability treatment, we record the fair value of the issued warrants as a liability at each reporting period and record changes in the estimated fair value as noncash gain
or loss in the Consolidated Statements of Operations and Comprehensive Loss.

Income Taxes

We  account  for  income  taxes  using  the  asset  and  liability  approach  for  financial  reporting  purposes.  We  recognize  deferred  tax  assets  and  liabilities  for  the  future  tax
consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and
tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in  the  years  in  which  those  temporary
differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the
enactment date. Valuation allowances are established, when necessary, to reduce the deferred tax assets to an amount expected to be realized.

Recent Accounting Pronouncements

See Note 3 to the Consolidated Financial Statements included in Item 8 in this Annual Report on Form 10-K for information on recent accounting pronouncements.

Financial Operations Overview and Results of Operations

Net Loss

We have not yet achieved recurring revenue-generating status from any of our product candidates or technologies. Since inception, we have devoted substantially all of our time
and efforts to developing our initial CNS product candidate, AV-101, from early nonclinical studies to our ongoing Phase 2 clinical development program in MDD. In addition,
we have devoted resourced to stem cell technology research and development, bioassay development and small molecule drug development, as well as creating, protecting and
patenting intellectual property (IP) related to our product candidates and technologies, with the corollary initiatives of recruiting and retaining personnel and raising working
capital. As discussed in greater detail in Part I, Item 1. Business in the Annual Report, during our fiscal year ended March 31, 2019  (Fiscal 2019), we acquired the rights to
develop and commercialize PH94B and PH10. As of March 31, 2019, we had an accumulated deficit of approximately $181.1 million. Our net loss for Fiscal 2019 and the fiscal
year ended March 31, 2018 (Fiscal 2018) was approximately $24.6 million and $14.3 million, respectively. We expect losses to continue for the foreseeable future, primarily as
we complete our ELEVATE Study later in 2019, pursue further clinical development of AV-101 for the adjunctive treatment of MDD and for a range of other CNS indications,
and further develop PH94B and PH10.

Summary of Our Fiscal Year Ended March 31, 2019

During Fiscal 2019, we continued to (i) advance both nonclinical development, including manufacturing, and clinical development of AV-101 as a potential new generation
antidepressant  and  as  a  potential  new  therapeutic  alternative  for  several  CNS  indications  with  significant  unmet  need,  (ii)  expand  the  regulatory  and  intellectual  property
foundation to support broad clinical development and, ultimately, commercialization of AV-101 in the U.S. and foreign markets, (iii) expand our neuropsychiatry pipeline by
acquiring exclusive worldwide licenses to PH94B and PH10, and (iv) on a limited basis, advance drug rescue applications of our stem cell technology to further expand our
CNS pipeline. Each of these initiatives is futher described below.

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With respect to development of AV-101 during Fiscal 2019, we continued to conduct our ELEVATE Study throughout the fiscal year, in addition to producing supplies of AV-
101 and conducting certain Phase 3-enabling nonclinical studies involving AV-101.

In addition, pursuant to our MT CRADA with the VA and our arrangements with Baylor, Baylor commenced the Baylor Study to define a dose-response relationship between
AV-101 and relevant biomarkers related to NMDA function and others possibly related to suicidal ideation in U.S. Military Veterans.

During Fiscal 2019, we expanded our portfolio of product candidates by acquiring licenses from Pherin giving us the exclusive worldwide rights to develop and commercialize
PH94B, a rapid-onset neuroactive nasal spray with potential to be the first FDA-approved on-demand treatment for SAD, and PH10, a rapid-onset neuroactive nasal spray for
treatment of MDD. We completed the acquisitions of PH94B and PH10 on a noncash basis through the issuance of an aggregate of 2,556,361 shares of our common stock. We
are actively pursuing nonclinical and regulatory initiatives necessary to facilitate pivotal Phase 3 clinical development of PH94B for SAD and Phase 2b clinical development of
PH10 for MDD.

We continue to pursue  initiatives to secure a broad portfolio of patent protection for AV-101 that covers the treatment of multiple CNS indications, unit dose formulations of
AV-101  effective  to  treat  depression  and  chemical  synthesis  methods.  With  respect  to  CNS  treatments,  during  Fiscal  2019  we  obtained  patents  in  several  countries  for  the
treatment of depression and we are pursuing patent applications related to treatment of LID, certain types of NP, tinnitus and obsessive-compulsive disorder. Additional patent
applications to other aspects of prognostic testing and treatment using AV-101 are under consideration.

During Fiscal 2018 and Fiscal 2019, we have pursued patent applications in the U.S., Australia, China, Europe, Japan and other selected countries and regions with significant
commercial potential. Several of these patent applications were allowed or have been granted in the U.S. and other major pharmaceutical markets during Fiscal 2019. Based on
patent issuances or allowances to-date in several countries, we believe that pending counterpart patent applications related to AV-101 currently under review in other countries
also are likely to be granted, although there can be no assurance that all pending applications will ultimately be granted.

As noted above, we have an exclusive license from Pherin to its portfolio of patent assets around PH94B. Patents have issued in several countries, including the U.S., Australia,
Canada, China, Europe, Japan, Korea and Mexico. We also have an exclusive license from Pherin to its portfolio of patent assets around PH10. Patents in this portfolio have
issued in Australia, China, Europe and Japan. Applications are pending in the U.S., Canada, Korea and Mexico.

As with AV-101, we plan to seek regulatory exclusivity in countries where this is available for the therapeutic use of PH94B, with initial emphasis on treating SAD as our lead
indication in clinical development, and for the therapeutic use of PH10, with our lead indication being the treatment of MDD. 

We  have  obtained  and  are  pursuing  patent  rights  to  the  production  of  several  types  of  stem  cells  and  cells  differentiated  from  those  stem  cells,  including  cardiomyocytes,
hematopoietic  cells,  chondrocytes,  cartilage  cells  and  hepatocytes,  as  well  as  the  use  of  certain  cell  types  that  have  been  differentiated  from  pluripotent  stem  cells  for
therapeutic purposes, including cell-based therapy and regenerative medicine.

With respect to financing activities in Fiscal 2019, between June 2018 and October 2018, we completed a self-placed private placement with accredited investors pursuant to
which we sold units, at a purchase price of $1.25 per unit, consisting of 4,605,000 unregistered shares of our common stock and warrants, exercisable through February 28,
2022, to purchase 4,605,000 unregistered shares of our common stock at an exercise price of $1.50 per share (the Summer 2018 Private Placement). We received aggregate cash
proceeds of $5,756,200 from the Summer 2018 Private Placement. The Summer 2018 Private Placement was oversubscribed.

To accommodate additional investor interest, during October 2018, we accepted subscription agreements from accredited investors, pursuant to which we sold to such investors
units, at a unit purchase price equal to $0.15 above the closing quoted market price of our common stock on the Nasdaq Capital Market on the effective date of the investor’s
subscription agreement, consisting of an aggregate of 420,939 unregistered shares of our common stock and four-year, immediately exercisable warrants to purchase 420,939
unregistered shares of our common stock at a per share exercise  price  equal  to  the  closing  quoted  market  price  of  our  common  stock  on  the  Nasdaq  Capital  Market  on  the
effective date of the investor’s subscription agreement (the Fall 2018 Private Placement). We received aggregate cash proceeds of $812,500 in connection with the Fall 2018
Private  Placement  and  settled  an  outstanding  professional  service  payable  by  accepting  a  subscription  agreement  in  the  amount  of  $40,000  and  issuing  the  corresponding
number of shares and warrants.

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In  February  and  March  2019,  we  completed  an  underwritten  public  offering  of  11,500,000  shares  of  our  common  stock,  including  full  exercise  of  the  underwriter’s
overallotment option, at a public offering price of $1.00 per share, resulting in gross proceeds of $11,500,000, pursuant to our shelf registration statement on Form S-3 (File No.
333-215671), previously filed with the SEC (the Spring 2019 Public Offering). We received net proceeds of approximately $10.4 million after deducting underwriting discounts
and commissions and offering expenses.

During Fiscal 2019, we also received cash proceeds of $605,700 from the exercise of outstanding warrants to purchase an aggregate of 403,800 shares our common stock.

As a matter of course, we continue to minimize, to the greatest extent possible, cash commitments and expenditures for both internal and external research and development and
general and administrative services. To further advance the clinical and nonclinical development of AV-101, PH94B, PH10 and our stem cell technology platform, as well as
support our operating activities, we continue to carefully manage our routine operating costs, including our internal employee related expenses, as well as external costs relating
to  regulatory  consulting,  contract  research  and  development,  investor  relations  and  corporate  development,  legal,  acquisition  and  protection  of  intellectual  property,  public
company compliance and other professional services and internal costs. 

Comparison of Fiscal Years Ended March 31, 2019 and 2018

The following table summarizes the results of our operations (including cash and noncash items) for the fiscal years ended March 31, 2019 and 2018 (amounts in thousands).

Operating expenses:
 Research and development
 General and administrative
  Total operating expenses

Loss from operations

Interest expense (net)
Loss on extinguishment of accounts payable

Loss before income taxes
Income taxes

Net loss
  Accrued dividend on Series B Preferred Stock
  Deemed dividend from trigger of down round
       provision feature
Net loss attributable to common stockholders

Revenue   

 Fiscal Year Ended March 31,

 2019

 2018

  $

  $

17,098 
7,458 
24,556 

7,763 
6,437 
14,200 

(24,556)

(14,200)

(8)
(23)

(24,587)
(2)

(24,589)
(1,140)

  $

- 
(25,729)

  $

(9)
(135)

(14,344)
(2)

(14,346)
(1,030)

(199)
(15,575)

We reported no revenue for either Fiscal 2019 or Fiscal 2018 and we presently have no recurring revenue generating arrangements, including arrangements with respect to AV-
101, PH94B, PH10 or other potential product candidates. While we may potentially receive additional payments and royalties in the future under our December 2016 BlueRock
Agreement  in  the  event  certain  performance-based  milestones  and  commercial  sales  are  achieved,  there  can  be  no  assurance  that  the  BlueRock  Agreement  will  provide
additional revenue to us in the near term or at all.

Research and Development Expense

Research  and  development  expense  increased  to  approximately  $17.1  million  in  Fiscal  2019  (including  approximately  $5.6  million  of  non-cash  expense)  compared  to
approximately $7.8 million in Fiscal 2018. This increase is primarily attributable to (i) the noncash acquisition of the PH94B license and the PH10 option and license through
the issuance of unregistered shares of our common stock, which resulted in an aggregate of $4.25 million of expense, (ii) expenses related to conducting the ELEVATE Study
throughout Fiscal 2019 and (iii) various nonclinical research and development, as well as manufacture of additional quantities of AV-101. Other noncash expenses included in
research  and  development  expense,  including  stock  compensation,  lab  equipment  depreciation  and  a  portion  of  rent  expense  in  both  years  and  a  portion  of AV-101  project
expenses in Fiscal 2019, aggregated approximately $1,382,000 and $1,595,000 for Fiscal 2019 and Fiscal 2018, respectively.

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The following table indicates the primary components of research and development expense for each of the periods (amounts in thousands):

Fiscal Years Ended March 31,

2019

2018

Salaries and benefits
Stock-based compensation
Consulting and other professional services
Technology licenses and royalties
Project-related research and supplies:

ELEVATE study and other AV-101 expenses
PH94B and PH10 licenses and other expenses
Stem cell and all other

Rent
Depreciation
All other

  $

  $

1,806 
1,259 
264 
571 

8,126 
4,496 
105 
12,727 
419 
49 
3 

Total Research and Development Expense

  $

17,098 

  $

1,563 
969 
32 
433 

4,154 
- 
130 
4,284 
412 
66 
4

7,763

The increase in salaries and benefits expense reflects the impact of salary increases effective in July 2018 and bonuses granted to our Chief Medical Officer (CMO),  Chief
Scientific Officer (CSO) and members of our scientific staff, offset by the impact of a staff termination in the first quarter of Fiscal 2018 and a staff leave of absence in the
fourth quarter of Fiscal 2019.

Non-cash stock-based compensation expense increased significantly in Fiscal 2019 as a result of (i) the impact of new options granted to our CMO, CSO, and members of our
scientific staff in August 2018, which options were 25% vested upon grant and vest ratably until becoming fully-vested within two years thereafter, and (ii) the modification in
August 2018 of outstanding options held by our CMO, CSO and members of our scientific staff having exercise prices over $1.56 per share to reduce the exercise price to
$1.50 per share in accordance with the terms of our 2016 Amended and Restated Stock Incentive Plan. Non-cash stock compensation expense attributable to grants made in
Fiscal 2019 and including the $104,000 immediately recognized impact of the modification of exercise prices accounted for approximately $310,000 in Fiscal 2019. Fiscal 2019
expense is attributable to grants made in June 2016 and thereafter, all earlier grants having become fully vested and amortized prior to September 30, 2018.

Consulting and other professional services reflects fees paid or accrued for scientific, nonclinical and clinical development and regulatory advisory services rendered to us by
third-parties, in both  periods,  in  Fiscal  2018,  primarily  by  members  of  our  scientific  and  CNS  clinical  and  regulatory  advisory  boards.  The  increase  in  Fiscal  2019  expense
reflects consulting and support services in connection with our acquisition of the exclusive licenses to PH94B and PH10 and related consulting arrangements.

Technology license and royalties expense reflects both recurring annual license fees as well as legal counsel and other costs related to patent prosecution and protection pursuant
to our stem cell technology license agreements or that we have elected to pursue for commercial purposes. We recognize these costs as they are invoiced to us by the licensors
or  counsel  and  they  may  vary  noticeably  between  years.  In  both  periods,  this  expense  includes  legal  counsel  and  other  costs  we  have  incurred  to  advance  pending  patent
applications  in  the  U.S.  and  numerous  foreign  countries  with  respect  to  AV-101  and  our  stem  cell  technology  platform.  Acquisition  of  the  PH94B  and  PH10  licenses
contributed only nominally to the increased expense in Fiscal 2019.

AV-101 project expense for Fiscal 2019 primarily reflects the continuing costs of conducting the ELEVATE Study, including various CRO, investigator and clinical site costs,
as  well  as  expense  incurred  to  manufacture  additional  quantities  of AV-101  for  use  in  future  nonclinical  and  clinical  trials  of AV-101  for  MDD  and  other  potential  CNS
indications.  In  Fiscal  2018, AV-101  project  expense  primarily  reflected  costs  incurred  to  develop  our  current  proprietary  manufacturing  methods  for AV-101,  to  produce
quantities of AV-101 in preparation for the ELEVATE Study and Baylor Study and various expenses related to initiating the ELEVATE Study.

As  indicated  earlier,  noncash  expense  related  to  the  acquisition  of  the  PH94B  and  PH10  licenses  and  PH10  option  reflects  the  $4.25  million  fair  value  of  an  aggregate  of
2,556,361 unregistered shares of our common stock issued to Pherin in September 2018 and October 2018 under the terms of the applicable license and option agreements.
Additional Fiscal 2019 expense primarily relates to initiatives advancing the further development of PH94B.

Stem cell and other project related expenses reflects costs associated with drug rescue applications of our stem cell technology in both years.

Rent expense is relatively flat between the periods and reflects commercial property rents prevalent in the South San Francisco real estate market at the time of our November
2016 lease amendment extending the lease of our headquarters facilities in South San Francisco by five years from July 31, 2017 to July 31, 2022 and the related accounting for
the amendment.

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General and Administrative Expense

General and administrative (G&A) expense increased by approximately $1.0 million to approximately $7.5 million in Fiscal 2019, as compared to approximately $6.4 million in
Fiscal 2018, primarily as a result of increased noncash stock-based compensation expense. Other G&A expenses fluctuated moderately both up and down, but in aggregate were
generally unchanged between years. Noncash G&A expense components accounted for approximately $2,622,000 and $2,884,000 in Fiscal 2019 and Fiscal 2018, respectively.
Such non-cash expenses included, in both periods, stock compensation expense, a portion of professional services and investor relations expense, a portion of rent expense, and
warrant modification expense. The following table indicates the primary components of general and administrative expense for each of the periods (amounts in thousands):

Salaries and benefits
Stock-based compensation
Board fees
Legal, accounting and other professional fees
Investor relations
Insurance
Travel expenses
Rent and utilities
Warrant modification expense
All other expenses

Fiscal Years Ended March 31,

2019

2018

  $

  $

1,972 
2,184 
163 
503 
1,690 
281 
174 
288 
26 
177 
7,458 

  $

  $

1,575 
1,375 
155 
785 
1,454 
242 
131 
279 
293 
148 
6,437 

The increase in salaries and benefits primarily reflects the impact of salary increases effective in July 2018 and bonuses granted to our Chief Executive Officer (CEO), Chief
Financial Officer (CFO), Vice President - Corporate Development (VP Corporate Development) and a non-officer member of our administrative staff.

Non-cash stock-based compensation expense increased significantly in Fiscal 2019 as a result of (i) the impact of new options granted to our CEO in January 2019 and to our
CFO, VP Corporate Development, our administrative staff, and the independent members of our Board of Directors (Board) in August 2018, each of which were 25% vested
upon grant and vest ratably until becoming fully-vested within two years thereafter, and (ii) the modification in August 2018 of outstanding options held by our CEO, CFO, VP
Corporate Development, our administrative staff, and the independent members of our Board having exercise prices over $1.56 per share to reduce the exercise price to $1.50
per share as permitted by the terms of our 2016 Amended and Restated Stock Incentive Plan. Non-cash stock compensation expense attributable to grants made in Fiscal 2019,
including the $154,000 immediately recognized impact of the modification of exercise prices, accounted for approximately $584,000 in Fiscal 2019. Additionally, the full year
expense  impact  of  grants  made  in  February  2018  to  our  CEO,  CFO,  VP  Corporate  Development,  our  administrative  staff,  and  the  independent  members  of  our  Board
contributed approximately an additional $183,000 to Fiscal 2019 expense. Fiscal 2019 expense is attributable to grants made in June 2016 and thereafter, all earlier grants having
become fully vested and amortized prior to September 30, 2018.

Board fees represents fees paid as consideration for Board and Board Committee services to the independent members of our Board. The Fiscal 2019 increase is attributable to
the addition of a new independent member to our Board in January 2019.

Legal, accounting and other professional fees for Fiscal 2019 and Fiscal 2018 includes expenses related to routine legal fees as well as the accounting expense related to the
annual audit of the prior year’s financial statements and the review of the financial statements for the first three quarters of the current fiscal year. Further, in Fiscal 2019, we
incurred $94,000 attributable to services provided by an international business development consultant. In addition to routine legal and accounting cash fees incurred, in Fiscal
2018, we granted an aggregate of 20,000 unregistered shares of our common stock having an aggregate grant date fair value of $30,800 to legal services providers as partial
compensation  for  services  and  an  aggregate  of  150,000  unregistered  shares  of  our  common  stock  having  an  aggregate  grant  date  fair  value  of  $234,000  to  two  investment
banking firms pursuant to financial advisory agreements. We incurred no similar non-cash expense in Fiscal 2019.

Investor and public relations expense includes the fees of our various external service providers for a broad spectrum of investor relations and public relations services, as well
as  market  awareness,  strategic  advisory  and  support  functions  and  initiatives  that  included  numerous  meetings  in  multiple  U.S.  markets  and  other  communication  activities
focused  on  expanding  market  awareness  of  the  Company  and  its  research  and  development  programs,  including  among  registered  investment  professionals  and  investment
advisors, individual and institutional investors, securities analysts and media. During Fiscal 2019, in addition to cash fees and expenses, we granted: (i) in the first quarter, an
aggregate of 100,000 unregistered shares of our common stock to certain financial advisory service providers as full or partial compensation for their services and recognized
noncash expense of approximately $123,000 representing the fair value of the stock at the time of issuance; (ii) in the second quarter, an aggregate of 50,000 unregistered shares
of our common stock and four-year warrants to purchase an aggregate of 288,000 unregistered shares of our common stock having an aggregate fair value of approximately
$336,000  to  various  corporate  development,  investor  relations,  and  market  awareness  service  providers,  pursuant  to  which  we  recognized  aggregate  non-cash  expense  of
approximately $257,000; and (iii) in the fourth quarter, 25,000 registered shares of our common stock pursuant to our 2016 Amended and Restated Stock Incentive Plan having
a fair value of $41,500 as partial compensation for investor relations services, pursuant to which we recognized noncash expense of approximately $14,000. The balance of the
fair value of the securities granted in the second and fourth quarters of Fiscal 2019 remains recorded as a prepaid expense and is being amortized over the remaining service
period of the respective contracts. In Fiscal 2018, in addition to cash fees and expenses we incurred, we granted an aggregate of 582,000 shares of our unregistered common
stock  to  various  corporate  development,  investor  relations,  market  awareness  and  business  advisory  service  providers  as  full  or  partial  compensation  for  their  services  and
recognized noncash expense totaling $886,300, representing the fair value of the stock at the time of issuance.

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In  both  Fiscal  2019  and  Fiscal  2018,  travel  expense  reflects  costs  associated  with  management  presentations  and  meetings  held  in  multiple  U.S.  markets,  and  certain
international markets in Fiscal 2019, with existing and potential individual and institutional investors, investment professionals and advisors, media, and securities analysts, as
well  as  various  investor  relations,  market  awareness  and  corporate  development  and  partnering  initiatives  and  in  monitoring  the  progress  of  our  ELEVATE  Study  in  Fiscal
2019.

Rent expense is essentially unchanged between the two periods and primarily reflects commercial property rents prevalent in the South San Francisco real estate market at the
time of our November 2016 lease amendment extending the lease of our headquarters facilities in South San Francisco by five years from July 31, 2017 to July 31, 2022 and the
related accounting for the amendment.

During the third quarter of Fiscal 2019, we modified certain warrants issued in the Summer 2018 Private Placement to comply with certain provisions of The Nasdaq Stock
Market Rules applicable to the offering by increasing the exercise price of such warrants to purchase an aggregate of 304,000 shares of our common stock from $1.50 per share
to $1.59 per share or $1.69 per share, depending on the effective date of the related subscription agreement. As additional consideration for the modification, we granted the
investors additional warrants to purchase an aggregate of 23,800 unregistered shares of our common stock at an exercise price of $1.75 per share through February 28, 2022.
We  determined  that  the  modification  decreased  the  fair  value  of  the  modified  warrants,  which  decrease  is  not  recognized;  however,  the  fair  value  of  the  new  warrants  was
determined  to  be  $25,800,  which  we  recognized  as  noncash  warrant  modification  expense.  In  the  second  quarter  of  Fiscal  2018,  we  reduced  the  exercise  price  of  247,500
warrants  issued  in  our  spring  2017  private  placement  offering  from  a  weighted  average  exercise  price  of  $3.99  per  share  to  $2.00  per  share.  We  also  issued  to  each  of  the
investors in the spring 2017 private placement additional warrants to purchase an aggregate total of 247,501 shares of common stock, with an exercise price of $2.00 per share.
We recognized noncash expense of $279,700 in the second quarter of Fiscal 2018 representing the increase in fair value of the warrants granted initially plus the fair value of the
additional  warrants  granted.  During  the  third  quarter  of  Fiscal  2018,  we  modified  outstanding  warrants  issued  in  private  placement  transactions  between August  2017  and
November  2017  to  purchase  an  aggregate  of  178,572  shares  of  our  common  stock  to  reduce  the  exercise  prices  from  a  weighted  average  of  $2.32  per  share  to  a  weighted
average of $1.58 per share. We recognized the calculated increase in the fair value of the warrants, $13,000, as noncash warrant modification expense.

Interest and Other Expenses, Net   

Interest expense totaled $8,000 for Fiscal 2019 compared to $8,900 for Fiscal 2018. Interest expense in both periods relates to interest paid on insurance premium financing and
on a capital lease of office equipment.

During the third quarter of Fiscal 2019, in connection with the Fall 2018 Private Placement, we settled an outstanding professional service payable by accepting a subscription
agreement in the amount of $40,000 and issuing the corresponding number of shares of common stock and warrants. The fair value of the common stock and warrant issued in
settlement of the payable was determined to be $62,700 on the effective date of the agreement. Accordingly, we recognized a loss on extinguishment of accounts payable in the
amount  of  $22,700  in  Fiscal  2019.  During  the  third  quarter  of  Fiscal  2018,  we  issued  500,000  unregistered  shares  of  our  common  stock  having  a  grant  date  fair  value  of
$585,000 and a cash payment of $76,500 to a contract manufacturing organization in settlement of $526,500 of open accounts payable. We recognized a corresponding loss on
settlement of accounts payable in the amount of $135,000 in Fiscal 2018.

We recognized $1,139,900 and $1,030,300 in Fiscal 2019 and Fiscal 2018, respectively, representing the 10% cumulative noncash dividend payable on our Series B Preferred
as an additional deduction in arriving at net loss attributable to common stockholders in the Consolidated Statement of Operations and Comprehensive Loss included in Item 8
of this Annual Report. The dividends are payable in unregistered shares of our common stock upon the conversion of Series B Preferred shares. There have been no conversions
of outstanding shares of Series B Preferred into common shares since August 2016.

Our  December  2017  public  offering  of  units  consisting  of  shares  of  our  common  stock  and  common  stock  purchase  warrants  at  an  offering  price  of  $1.50  per  unit  (the
December 2017 Public Offering) triggered the anti-dilution protection provisions of the Series A2 Warrants to purchase an aggregate of 503,641 shares of our common stock
issued in the public offering we completed in September 2017. In accordance with the anti-dilution terms and formula contained in the Series A2 warrants, the exercise price of
the  Series A2  Warrants  was  reduced  from  the  initial  exercise  price  of  $1.82  per  share  to  $0.001  per  share.  We  recognized  the  effect  of  triggering  the  down  round  feature,
$199,200, as a further addition to net loss attributable to common stockholders and in our calculation of basic and fully diluted earnings per share in our Consolidated Statement
of Operations and Comprehensive Loss and as a dividend in our Consolidated Statement of Stockholders’ Equity for Fiscal 2018 included in Item 8 of this Annual Report. The
holders  of  the  Series A2  Warrants  subsequently  exercised  them  in  the  third  and  fourth  quarters  of  Fiscal  2018  and  we  received  minimal  cash  proceeds  from  the  exercises.
Following the exercise of the Series A2 Warrants, none of our outstanding warrants contain antidilution protection provisions other than is customary in the event of a change in
our capital structure as a result of a stock split or dividend.

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Liquidity and Capital Resources

Since our inception in May 1998 through March 31, 2019, we have financed our operations and technology acquisitions primarily through the issuance and sale of our equity
and  debt  securities  for  cash  proceeds  of  approximately  $79.0  million,  as  well  as  from  an  aggregate  of  approximately  $17.7  million  of  government  research  grant  awards
(excluding  the  fair  market  value  of  government  sponsored  and  funded  clinical  trials  such  as  the  Baylor  Study),  strategic  collaboration  payments,  intellectual  property
sublicensing  and  other  revenues. Additionally,  we  have  issued  equity  securities  with  an  approximate  value  at  issuance  of  $38.1  million  in  noncash  acquisitions  of  product
licenses and in settlements of certain liabilities, including liabilities for professional services rendered to us or as compensation for such services.

At March 31, 2019, we had cash and cash equivalents of approximately $13.1 million.

Our  cash  position  at  March  31,  2019  considered  with  our  recurring  and  anticipated  losses,  negative  cash  flows  from  operations  and  limited  stockholders’  equity  make  it
probable, in the absence of additional financing, that we will not have sufficient resources to fund our planned operations for the twelve months following the issuance of these
financial statements, during which time we plan to complete our ELEVATE study, prepare for and launch a pivotal Phase 3 clinical trial of PH94B, prepare for additional Phase
2a clinical and certain nonclinical studies involving AV-101 and prepare for a Phase 2b clinical trial of PH10, and raises substantial doubt that we can continue as a going
concern.  Nevertheless,  when  necessary  and  advantageous,  we  plan  to  raise  additional  capital,  primarily  through  the  sale  of  our  equity  securities  in  one  or  more  private
placements to accredited investors or in public offerings. Subject to certain restrictions, our effective Registration Statement on Form S-3 (Registration No. 333-215671) (the S-
3 Registration Statement) remains available for future sales of our equity securities in one or more public offerings from time to time. While we may make additional sales of
our equity securities under the S-3 Registration Statement, we do not have an obligation to do so. As we have been in the past, we expect that, if and as necessary, we will be
successful  in  raising  additional  capital  from  the  sale  of  our  equity  securities  either  in  one  or  more  public  offerings  or  in  one  or  more  private  placement  transactions  with
individual accredited investors or institutions.

In addition to the potential sale of our equity securities, we may also seek to enter research, development and/or commercialization collaborations that could generate revenue or
provide funding, including non-dilutive funding, for development of AV-101, PH94B, PH10 and/or additional product candidates. We may also seek additional government
grant  awards  or  agreements  similar,  for  example,  to  our  recent  CRADA  with  the  NIMH,  which  provided  for  the  NIMH  to  fully  fund  the  NIMH  Study,  or  similar  to  our
relationships with Baylor and the VA in connection with the Baylor Study. Such strategic collaborations may provide non-dilutive resources to advance our strategic initiatives
while  reducing  a  portion  of  our  future  cash  outlays  and  working  capital  requirements.  We  may  also  pursue  intellectual  property  arrangements  similar  to  the  BlueRock
Agreement with other parties. Although we may seek additional collaborations that could generate revenue and/or provide non-dilutive funding for development of AV-101,
PH94B, PH10 or other product candidates, as well as new government grant awards and/or agreements, no assurance can be provided that any such collaborations, awards or
agreements will occur in the future.  

Our future working capital requirements will depend on many factors, including, without limitation, the scope and nature of opportunities related to our success and the success
of  certain  other  companies  in  clinical  trials,  including  our  development  and  commercialization  of  our  current  product  candidates  and  various  applications  of  our  stem  cell
technology platform, the availability of, and our ability to obtain, government grant awards and agreements, and our ability to enter into collaborations on terms acceptable to us.
To further advance the clinical development of AV-101, PH94B, PH10 and, to a lesser extent, our stem cell technology platform, as well as support our operating activities, we
plan to continue to carefully manage our routine operating costs, including our employee headcount and related expenses, as well as costs relating to regulatory consulting,
contract  research  and  development,  investor  relations  and  corporate  development,  legal,  acquisition  and  protection  of  intellectual  property,  public  company  compliance  and
other professional services and operating costs. 

Notwithstanding the foregoing, there can be no assurance that future financings or government or other strategic collaborations will be available to us in sufficient amounts, in a
timely manner, or on terms acceptable to us, if at all. If we are unable to obtain substantial additional financing on a timely basis when needed in 2019 and beyond, our business,
financial condition, and results of operations may be harmed, the price of our stock may decline, we may be required to reduce, defer, or discontinue certain of our research and
development activities and we may not be able to continue as a going concern.  The Consolidated Financial Statements included in Part II, Item 8 of this Annual Report do not
include any adjustments that might result from the negative outcome of this uncertainty.

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Cash and Cash Equivalents

The following table summarizes changes in cash and cash equivalents for the periods stated (in thousands):

Net cash used in operating activities
Net cash used in investing activities
Net cash provided by financing activities

 Net increase in cash and cash equivalents
 Cash and cash equivalents at beginning of period

 Cash and cash equivalents at end of period

Fiscal Years Ended March 31,

2019

2018

  $

  $

(14,528)
(174)
17,424 

2,722 
10,378 

(9,058)
(2)
16,517 

7,457 
2,921 

  $

13,100 

  $

10,378 

The increase in cash used in operations results primarily from conducting our ELEVATE Study, which commenced at the end of the fourth quarter of Fiscal 2018. Additional
contributors to the increase in cash used in operations are modest increases in employee cash compensation and benefits and an expansion of various investor relations and
corporate development and awareness initiatives. The increase in cash used in investing activities reflects the cost of tenant improvements at our office and laboratory facilities
in South San Francisco, California, substantially all of which were reimbursed by our landlord under the terms of our November 2016 lease extension, which reimbursement is
reflected in operating activities. Cash provided by financing activities in Fiscal 2019 primarily reflects the cash proceeds from our Spring 2019 Public Offering, our Summer
2018 and Fall 2018 Private Placements, and warrant and option exercises and, in Fiscal 2018, the proceeds of our September 2017 and December 2017 public offerings, net of
routine note and capital lease payments in both years.

Off-Balance Sheet Arrangements

Other than contractual obligations incurred in the normal course of business, we do not have any off-balance sheet financing arrangements or liabilities, guarantee contracts,
retained or contingent interests in transferred assets or any obligation arising out of a material variable interest in an unconsolidated entity. VistaStem has two inactive, wholly
owned subsidiaries, Artemis Neuroscience, Inc., a Maryland corporation, and VistaStem Canada, Inc., an Ontario corporation.

 Item 7A.  Quantitative and Qualitative Disclosures About Market Risk

The disclosures in this section are not required because we qualify as a smaller reporting company under federal securities laws.

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Item 8.  Financial Statements and Supplementary Data

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm
Consolidated Balance Sheets
Consolidated Statements of Operations and Comprehensive Loss
Consolidated Statements of Cash Flows
Consolidated Statements of Stockholders' Equity
Notes to Consolidated Financial Statements

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Stockholders and Board of Directors
VistaGen Therapeutics, Inc.
South San Francisco, California

Opinion on the Financial Statements

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We  have  audited  the  accompanying  consolidated  balance  sheets  of  VistaGen  Therapeutics,  Inc.  as  of  March  31,  2019  and  2018,  the  related  consolidated  statements  of
operations and comprehensive loss, cash flows, and stockholders’ equity for each of the two fiscal years in the period ended March 31, 2019, and the related notes (collectively
referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company at March 31, 2019
and 2018, and the results of its operations and its cash flows for each of the two years in the period ended March 31, 2019, in conformity with accounting principles generally
accepted in the United States of America.

Going Concern Uncertainty

The  accompanying  consolidated  financial  statements  have  been  prepared  assuming  that  the  Company  will  continue  as  a  going  concern.  As  discussed  in  Note  2  to  the
consolidated  financial  statements,  the  Company  has  not  yet  generated  sustainable  revenues,  has  suffered  recurring  losses  and  negative  cash  flows  from  operations  and  has
minimal  stockholders’  equity,  all  of  which  raise  substantial  doubt  about  its  ability  to  continue  as  a  going  concern.  Management's  plans  in  regard  to  these  matters  are  also
described in Note 2. The consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.

Basis for Opinion

These  consolidated  financial  statements  are  the  responsibility  of  the  Company’s  management.  Our  responsibility  is  to  express  an  opinion  on  the  Company’s  consolidated
financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”) and are
required  to  be  independent  with  respect  to  the  Company  in  accordance  with  the  U.S.  federal  securities  laws  and  the  applicable  rules  and  regulations  of  the  Securities  and
Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about
whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to
perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but
not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing
procedures  that  respond  to  those  risks.  Such  procedures  included  examining,  on  a  test  basis,  evidence  regarding  the  amounts  and  disclosures  in  the  consolidated  financial
statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of
the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

/s/ OUM & CO. LLP

San Francisco, California
June 25, 2019
We have served as the Company's auditor since 2006.

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 Current assets:

 Cash and cash equivalents
 Receivable from supplier
 Prepaid expenses and other current assets

 Total current assets
 Property and equipment, net
 Security deposits and other assets
 Total assets

VISTAGEN THERAPEUTICS, INC.

CONSOLIDATED BALANCE SHEETS
(Amounts in dollars, except share amounts)

 ASSETS

 LIABILITIES AND STOCKHOLDERS’ EQUITY

 Current liabilities:

 Accounts payable
 Accrued expenses
 Current notes payable
 Capital lease obligations

 Total current liabilities

 Non-current liabilities:

 Accrued dividends on Series B Preferred Stock
 Deferred rent liability
 Capital lease obligations
 Total non-current liabilities
 Total liabilities

 Commitments and contingencies

 Stockholders’ equity:
      Preferred stock, $0.001 par value; 10,000,000 shares authorized at March 31, 2019 and 2018:
          Series A Preferred, 500,000 shares authorized, issued and outstanding at March 31, 2019 and 2018
          Series B Preferred; 4,000,000 shares authorized at March 31, 2019 and 2018; 1,160,240 shares
              issued and outstanding at March 31, 2019 and 2018
          Series C Preferred; 3,000,000 shares authorized at March 31, 2019 and 2018; 2,318,012 shares
              issued and outstanding at March 31, 2019 and 2018

 Common stock, $0.001 par value; 100,000,000 shares authorized at March 31, 2019 and 2018;

  42,758,630 and 23,068,280 shares issued and outstanding at March 31, 2019 and March 31, 2018,
   respectively
 Additional paid-in capital
 Treasury stock, at cost, 135,665 shares of common stock held at March 31, 2019 and 2018
 Accumulated deficit
 Total stockholders’ equity
 Total liabilities and stockholders’ equity

See accompanying notes to consolidated financial statements.

-82-

  March 31,

 2019

 March 31,
 2018

  $

  $

  $

  $

  $

  $

13,100,300 
300,000 
250,900 
13,651,200 
312,700 
47,800 
14,011,700 

1,055,000 
1,685,600 
57,300 
3,000 
2,800,900 

3,748,200 
381,100 
6,300 
4,135,600 
6,936,500 

10,378,300 
- 
644,800 
11,023,100 
207,400 
47,800 
11,278,300 

1,195,700 
206,300 
53,900 
2,600 
1,458,500 

2,608,300 
285,600 
9,300 
2,903,200 
4,361,700 

500 

1,200 

2,300 

500 

1,200 

2,300 

42,800 
192,129,900 
(3,968,100)
(181,133,400)
7,075,200 
14,011,700 

  $

23,100 
167,401,400 
(3,968,100)
(156,543,800)
6,916,600 
11,278,300 

  $

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

VISTAGEN THERAPEUTICS, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
(Amounts in dollars, except share amounts)

Operating expenses:

 Research and development
 General and administrative
Total operating expenses

Loss from operations
Other expenses, net:

 Interest expense, net
 Loss on extinguishment of accounts payable

Loss before income taxes
Income taxes
Net loss and comprehensive loss

   Accrued dividend on Series B Preferred stock
   Deemed dividend from trigger of down round

provision feature

Net loss attributable to common stockholders

Basic and diluted net loss attributable to common
     stockholders per common share

Weighted average shares used in computing

 basic and diluted net loss attributable to common
 stockholders per common share

See accompanying notes to consolidated financial statements.

-83-

 Fiscal Years Ended March 31,

 2019

2018

  $

  $

17,098,500 
7,457,800 
24,556,300 
(24,556,300)

7,762,500 
6,437,100 
14,199,600 
(14,199,600)

(8,000)
(22,700)
(24,587,000)
(2,600)
(24,589,600)

(8,900)
(135,000)
(14,343,500)
(2,400)
(14,345,900)

(1,139,900)

(1,030,400)

- 

(199,200)

  $

(25,729,500)

  $

(15,575,500)

  $

(0.90)

  $

(1.12)

28,562,490 

13,890,041 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
  
 
 
  
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
Table of Contents

VISTAGEN THERAPEUTICS, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS
(Amounts in dollars)

Cash flows from operating activities:

Net loss
Adjustments to reconcile net loss to net cash used in operating activities:

Depreciation and amortization
Stock-based compensation
Expense related to modification of warrants
Fair value of common stock issued for services
Fair value of common stock issued for product licenses and option
Fair value of warrants issued for services
Loss on settlement of accounts payable
Changes in operating assets and liabilities:

Receivable from supplier
Prepaid expenses and other current assets
Accounts payable and accrued expenses
Deferred rent

Net cash used in operating activities

Cash flows from property and investing activities:

Purchases of equipment and acquisition of tenant improvements

Net cash used in investing activities

Cash flows from financing activities:

Net proceeds from issuance of common stock and warrants, including Units
Proceeds from exercise of warrants
Repayment of capital lease obligations
Repayment of notes payable

Net cash provided by financing activities

Net increase in cash and cash equivalents
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period

Supplemental disclosure of cash flow activities:

Cash paid for interest
Cash paid for income taxes

Supplemental disclosure of noncash activities:

Insurance premiums settled by issuing note payable
Accrued dividends on Series B Preferred
Deemed dividend from trigger of down round provision feature
Accounts payable settled by issuing common stock

See accompanying notes to consolidated financial statements.

-84-

 Fiscal Years Ended March 31,

2019

2018

  $

(24,589,600)

  $

(14,345,900)

91,200 
3,443,400 
25,800 
391,100 
4,250,000 
119,700 
22,700 

(300,000)
589,000 
1,338,700 
90,500 
(14,527,500)

80,700 
2,344,200 
292,700 
1,615,800 
- 
- 
135,000 

- 
131,200 
541,700 
146,300 
(9,058,300)

(174,000)
(174,000)

(1,600)
(1,600)

17,041,000 
605,700 
(2,700)
(220,500)
17,423,500 
2,722,000 
10,378,300 
13,100,300 

  $

16,722,300 
- 
(2,400)
(203,000)
16,516,900 
7,457,000 
2,921,300 
10,378,300 

8,000 
2,600 

  $
  $

8,900 
2,400 

224,000 
1,139,900 
- 
40,000 

  $
  $
  $
  $

202,100 
1,030,400 
199,200 
450,000 

  $

  $
  $

  $
  $
  $
  $

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
Table of Contents

VISTAGEN THERAPEUTICS, INC.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

Fiscal Years Ended March 31, 2018 and 2019
(Amounts in dollars, except share amounts)

  Series A Preferred Stock  

  Series B Preferred Stock  

  Series C Preferred Stock  

 Shares

 Amount

 Shares

 Amount

 Shares

 Amount

  Additional  

Total

 Common
Stock
 Shares

 Amount

 Paid-in  
 Capital

  Treasury  
Stock

  Accumulated 
Deficit

   Stockholders’
  Equity  

Balances at
March 31,
2017

Proceeds from
sale of common
stock and
warrants for
cash in
September
2017 Public
Offering, net of
underwriting
discount and
expenses
Proceeds from
sale of common
stock and
warrants for
cash in
December 2017
Public
Offering, net of
underwriting
discount and
expenses
Proceeds from
sale of common
stock and
warrants for
cash in private
placement
offerings
Proceeds from
exercise of
warrants
Accrued
dividends on
Series B
Preferred stock    
Stock-based
compensation
expense
Fair value of
common stock
granted for
services
Fair value of
common stock
granted in
settlement of
accounts
payable
Increase in fair
value
attributable to
warrant
modifications
Deemed
dividend from
trigger of down
round provision
feature
Net loss for the
fiscal year
ended March
31, 2018

Balances at
March 31,
2018

Proceeds from
sale of common
stock for cash
in February
2019 Public
Offering, net of
underwriting
discount and
expenses

500,000 

  $

500 

    1,160,240 

  $

1,200 

    2,318,012 

  $

2,300 

    8,974,386 

  $

9,000 

  $146,569,600 

  $ (3,968,100)   $(141,998,700)   $ 615,800 

- 

- 

- 

- 

- 

- 

    1,371,430 

1,400 

    2,023,000 

- 

- 

    2,024,400 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

    10,000,000 

10,000 

    13,614,000 

- 

- 

- 

- 

616,323 

600 

    1,072,600 

503,641 

500 

- 

- 

- 

- 

    (1,030,400)    

- 

    2,344,100 

- 

    1,102,500 

1,100 

    1,732,100 

- 

500,000 

500 

584,500 

- 

- 

- 

- 

- 

- 

- 

- 

- 

   13,624,000 

- 

    1,073,200 

- 

500 

- 

    (1,030,400)

- 

    2,344,100 

- 

    1,733,200 

- 

585,000 

- 

292,700 

292,700 

- 

- 

- 

- 

- 

- 

- 

- 

- 

199,200 

- 

(199,200)    

- 

- 

- 

    (14,345,900)    (14,345,900)

500,000 

  $

500 

    1,160,240 

  $

1,200 

    2,318,012 

  $

2,300 

    23,068,280 

  $

23,100 

  $167,401,400 

  $ (3,968,100)   $(156,543,800)   $ 6,916,600 

- 

- 

- 

- 

- 

- 

    11,500,000 

11,500 

    10,376,900 

- 

- 

   10,388,400 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
 
   
 
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
 
   
  
   
  
 
 
  
   
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
   
  
   
   
   
   
   
   
   
   
   
Proceeds from
sale of common
stock and
warrants for
cash and
settlement of
professional
services
payable in
private
placement
offerings
Proceeds from
exercise of
warrants
Proceeds from
exercise of
stock options
Accrued
dividends on
Series B
Preferred stock    
Stock-based
compensation
expense
Fair value of
common stock
issued for
PH94B license
and PH10
option and
license
Fair value of
common stock
and warrants
issued for
services
Increase in fair
value
attributable to
warrant
modifications
Net loss for the
fiscal year
ended March
31, 2019

Balances at
March 31,
2019

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

    5,025,939 

5,000 

    6,626,400 

- 

- 

- 

- 

403,800 

400 

605,300 

29,250 

- 

43,900 

- 

- 

- 

    (1,139,900)    

- 

    3,443,400 

- 

    2,556,361 

2,600 

    4,247,400 

- 

175,000 

200 

499,300 

- 

- 

- 

- 

- 

- 

- 

- 

- 

    6,631,400 

- 

- 

605,700 

43,900 

- 

    (1,139,900)

- 

    3,443,400 

- 

    4,250,000 

- 

499,500 

- 

25,800 

- 

- 

- 

- 

- 

- 

25,800 

- 

- 

    (24,589,600)    (24,589,600)

500,000 

  $

500 

    1,160,240 

  $

1,200 

    2,318,012 

  $

2,300 

    42,758,630 

  $

42,800 

  $192,129,900 

  $ (3,968,100)   $(181,133,400)   $ 7,075,200 

See accompanying notes to consolidated financial statements.

-85-

   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
  
   
 
 
Table of Contents

1.  Description of Business

Overview

VistaGen  Therapeutics,  Inc.,  a  Nevada  corporation  (which  may  be  referred  to  as VistaGen,  the Company,  we,  our,  or us) , is  a  clinical-stage  biopharmaceutical  company
committed  to  developing  and  commercializing  new  generation  medicines  to  treat  diseases  and  disorders  of  the  central  nervous  system  (CNS)  with  high  unmet  need.  Our
portfolio of three clinical-stage product candidates is currently focused predominantly on major depressive disorder (MDD) and social anxiety disorder (SAD).

MDD is a serious neurobiologically-based mood disorder, affecting approximately 16 million adults in the United States, according to the U.S. National Institutes of Health
(NIH). Individuals diagnosed with MDD exhibit depressive symptoms, such as a depressed mood or a loss of interest or pleasure in daily activities, for more than a two-week
period, as well as impaired social, occupational, educational or other important functioning which has a negative impact on their quality of life. Globally, MDD affects nearly
300 million people of all ages and is the leading cause of disability worldwide.

SAD  affects  as  many  as  15  million Americans  and  is  the  third  most  common  psychiatric  condition  after  depression  and  substance  abuse,  according  to  the Anxiety  and
Depression Association of America.. SAD is characterized by a persistent and unreasonable fear of one or more social or performance situations, where the individual fears that
he or she will act in a way or show symptoms that will be embarrassing or humiliating, leading to avoidance of the situations when possible and anxiety or distress when they
occur. These fears have a significant impact on the person's employment, social activities and overall quality of life. Only three drugs, all antidepressants, are approved by the
U.S Food and Drug Administration (FDA) for treatment of SAD. However, for treatment of both MDD and SAD, current oral antidepressants (ADs) have slow onset of effect
(often several weeks to months) and significant side effects that may make them inadequate treatment alternatives for many individuals affected by MDD and SAD.

Our most advanced product candidate, PH94B neuroactive nasal spray, is fundamentally different from all current treatments for SAD. Developed from proprietary compounds
called pherines and administered as a nasal spray, PH94B activates nasal chemosensory receptors that trigger neural circuits in the brain that suppress fear and anxiety. In a
published double-blind, placebo-controlled Phase 2 clinical trial, PH94B neuroactive nasal spray was significantly more effective than placebo in reducing public-speaking and
social interaction anxiety on laboratory challenges of individuals with SAD. Its novel mechanism of pharmacological action, rapid-onset of therapeutic effects and exceptional
safety and tolerability profile in clinical trials to date make PH94B neuroactive nasal spray an excellent product candidate with potential to become the first FDA-approved on-
demand, as-needed, or PRN, treatment for SAD.

AV-101  (4-Cl-KYN),  one  of  our  two  product  candidates  for  MDD,  belongs  to  a  new  generation  of  investigational  medicines  in  neuropsychiatry  and  neurology  known  as
NMDA (N-methyl-D-aspartate) glutamate receptor modulators. The NMDA receptor is a pivotal receptor in the brain and abnormal NMDA function is associated with multiple
CNS diseases and disorders, including MDD, chronic neuropathic pain, epilepsy, Parkinson's disease levodopa-induced dyskinesia and many others. AV-101 is an oral prodrug
of 7-Cl-KYNA which binds uniquely at the glycine site of the NMDA receptor and has potential to be a new at-home treatment for MDD. AV-101 is currently in Phase 2
development in the U.S. for MDD. ELEVATE is our Phase 2 multicenter, multi-dose, double blind, placebo-controlled clinical study to evaluate the efficacy and safety of AV-
101 as an add-on treatment for MDD in adult patients with an inadequate therapeutic response to current FDA-approved ADs (the ELEVATE Study). We currently anticipate top
line results from the ELEVATE Study in the second half of 2019. The FDA has granted Fast Track designation for development of AV-101 both as a potential add-on treatment
of MDD and as a non-opioid treatment for neuropathic pain.

Our  other  product  candidate  for  MDD  in  Phase  2  development  for  MDD  is  PH10  neuroactive  nasal  spray.  PH10  is  a  potential  first-in-class,  CNS  neurosteroid  nasal  spray
administered  in  microgram  doses  for  MDD.  PH10  nasal  spray  activates  nasal  chemosensory  receptors  that,  in  turn,  engage  GABA  (gamma-aminobutyric  acid)  and  CRH
(corticotropin-releasing hormone) neurons in the limbic amygdala system. The activation of these neural circuits is believed to have the potential to lead to rapid antidepressant
effects without psychological side effects, systemic exposure or safety concerns often associated with current antidepressants. Based on positive results of a small exploratory
Phase 2a study in MDD in which rapid-onset antidepressant effects were observed without psychological side effects or systemic exposure, we are preparing for planned Phase
2b clinical development of PH10 as a first-line treatment for MDD.

Additional  potential  indications  for  PH94B  include  post-traumatic  stress  disorder  (PTSD)  and  general  anxiety  disorder  (GAD)  and  others  neuropsychiatric  indications.
Additional potential indications for AV-101 include as a non-addictive, non-sedating treatment of chronic neuropathic pain ( CNP), epilepsy, and to reduce dyskinesia induced
by levodopa therapy for Parkinson’s disease (PD LID).

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Table of Contents

In addition to our CNS business, we have two pipeline-enabling programs through our wholly-owned subsidiary, VistaStem Therapeutics ( VistaStem). VistaStem is focused on
applying pluripotent stem cell (hPSC)  technology  to  discover,  rescue,  develop  and  commercialize  proprietary  new  chemical  entities  (NCEs)  for  CNS  and  other  diseases  and
regenerative  medicine  (RM)  involving  hPSC-derived  blood,  cartilage,  heart  and  liver  cells.  Our  internal  drug  rescue  programs  are  designed  to  utilize CardioSafe  3D,  our
customized cardiac bioassay system, to discover and develop small molecule NCEs for our CNS pipeline or for out-licensing. To advance potential RM applications of our
cardiac  stem  cell  technology,  we  have  sublicensed  to  BlueRock  Therapeutics  LP,  a  next  generation  cell  therapy  and  RM  company  established  by  Bayer AG  and  Versant
Ventures (BlueRock Therapeutics),  rights  to  certain  proprietary  technologies  relating  to  the  production  of  cardiac  stem  cells  for  the  treatment  of  heart  disease  (the BlueRock
Agreement). In a manner similar to the BlueRock Agreement, we may pursue additional collaborations or licensing transactions involving blood, cartilage, and/or liver cells
derived from hPSCs for cell-based therapy, cell repair therapy, RM and/or tissue engineering.

Subsidiaries

As noted above, VistaStem is our wholly-owned subsidiary. Our Consolidated Financial Statements in this Annual Report on Form 10-K ( Report) also include the accounts of
VistaStem’s two wholly-owned inactive subsidiaries, Artemis Neuroscience, Inc., a Maryland corporation, and VistaStem Canada, Inc., a corporation organized under the laws
of Ontario, Canada.

2.  Basis of Presentation and Going Concern

The accompanying Consolidated Financial Statements have been prepared assuming that we will continue as a going concern. As a clinical-stage biopharmaceutical company
having not yet developed commercial products or achieved sustainable revenues, we have experienced negative cash flows from operations and recurring losses resulting in a
deficit of $181.1 million accumulated from inception through March 31, 2019. We expect losses and negative cash flows from operations to continue for the foreseeable future
as  we  engage  in  further  development  of AV-101,  PH94B  and  PH10,  execute  our  drug  rescue  programs  and  pursue  potential  drug  development  and  regenerative  medicine
opportunities.

Since our inception in May 1998 through March 31, 2019, we have financed our operations and technology acquisitions primarily through the issuance and sale of our equity
and  debt  securities  for  cash  proceeds  of  approximately  $79.0  million,  as  well  as  from  an  aggregate  of  approximately  $17.7  million  of  government  research  grant  awards
(excluding  the  fair  market  value  of  government  sponsored  and  funded  clinical  trials  such  as  the  Baylor  Study),  strategic  collaboration  payments,  intellectual  property
sublicensing  and  other  revenues. Additionally,  we  have  issued  equity  securities  with  an  approximate  value  at  issuance  of  $38.1  million  in  noncash  acquisitions  of  product
licenses and in settlements of certain liabilities, including liabilities for professional services rendered to us or as compensation for such services.

At March 31, 2019, we had cash and cash equivalents of approximately $13.1 million.

Our  cash  position  at  March  31,  2019  considered  with  our  recurring  and  anticipated  losses,  negative  cash  flows  from  operations  and  limited  stockholders’  equity  make  it
probable, in the absence of additional financing, that we will not have sufficient resources to fund our planned operations for the twelve months following the issuance of these
financial statements, during which time we plan to complete our ELEVATE study, prepare for and launch a pivotal Phase 3 clinical trial of PH94B, prepare for additional Phase
2 clinical studies and certain nonclinical studies involving AV-101 and prepare for a Phase 2b clinical trial of PH10, and raises substantial doubt that we can continue as a going
concern.  Nevertheless,  when  necessary  and  advantageous,  we  plan  to  raise  additional  capital,  primarily  through  the  sale  of  our  equity  securities  in  one  or  more  private
placements to accredited investors or in public offerings. Subject to certain restrictions, our effective Registration Statement on Form S-3 (Registration No. 333-215671) (the S-
3 Registration Statement) remains available for future sales of our equity securities in one or more public offerings from time to time. While we may make additional sales of
our equity securities under the S-3 Registration Statement, we do not have an obligation to do so. As we have been in the past, we expect that, if and as necessary, we will be
successful  in  raising  additional  capital  from  the  sale  of  our  equity  securities  either  in  one  or  more  public  offerings  or  in  one  or  more  private  placement  transactions  with
individual accredited investors or institutions.

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Table of Contents

In addition to the potential sale of our equity securities, we may also seek to enter research, development and/or commercialization collaborations that could generate revenue or
provide funding, including non-dilutive funding, for development of AV-101, PH94B, PH10 and/or additional product candidates. We may also seek additional government
grant  awards  or  agreements  similar,  for  example,  to  our  recent  CRADA  with  the  NIMH,  which  provided  for  the  NIMH  to  fully  fund  the  NIMH  Study,  or  similar  to  our
relationships with Baylor and the VA in connection with the Baylor Study. Such strategic collaborations may provide non-dilutive resources to advance our strategic initiatives
while  reducing  a  portion  of  our  future  cash  outlays  and  working  capital  requirements.  We  may  also  pursue  intellectual  property  arrangements  similar  to  the  BlueRock
Agreement with other parties. Although we may seek additional collaborations that could generate revenue and/or provide non-dilutive funding for development of AV-101,
PH94B, PH10 or other product candidates, as well as new government grant awards and/or agreements, no assurance can be provided that any such collaborations, awards or
agreements will occur in the future. 

Our future working capital requirements will depend on many factors, including, without limitation, the scope and nature of opportunities related to our success and the success
of  certain  other  companies  in  clinical  trials,  including  our  development  and  commercialization  of  our  current  product  candidates  and  various  applications  of  our  stem  cell
technology platform, the availability of, and our ability to obtain, government grant awards and agreements, and our ability to enter into collaborations on terms acceptable to us.
To further advance the clinical development of AV-101, PH94B, PH10 and, to a lesser extent, our stem cell technology platform, as well as support our operating activities, we
plan to continue to carefully manage our routine operating costs, including our employee headcount and related expenses, as well as costs relating to regulatory consulting,
contract  research  and  development,  investor  relations  and  corporate  development,  legal,  acquisition  and  protection  of  intellectual  property,  public  company  compliance  and
other professional services and operating costs. 

Notwithstanding the foregoing, there can be no assurance that future financings or government or other strategic collaborations will be available to us in sufficient amounts, in a
timely manner, or on terms acceptable to us, if at all. If we are unable to obtain substantial additional financing on a timely basis when needed in 2019 and beyond, our business,
financial condition, and results of operations may be harmed, the price of our stock may decline, we may be required to reduce, defer, or discontinue certain of our research and
development activities and we may not be able to continue as a going concern.  As noted above, these Consolidated Financial Statements do not include any adjustments that
might result from the negative outcome of this uncertainty.

3.  Summary of Significant Accounting Policies

Use of Estimates

The preparation of financial statements in conformity with U.S. generally accepted accounting principles (U.S. GAAP) requires management to make estimates and assumptions
that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of
revenues and expenses during the reporting period. Actual results could differ from those estimates.  Significant estimates include, but are not limited to, those relating to stock-
based compensation, revenue recognition, research and development expenses and the assumptions used to value warrants, warrant modifications and warrant liabilities.

Principles of Consolidation

The  accompanying  consolidated  financial  statements  include  the  Company’s  accounts,  VistaStem’s  accounts  and  the  accounts  of  VistaStem’s  two  wholly-owned  inactive
subsidiaries, Artemis Neurosciences and VistaStem Canada. All material intercompany accounts and transactions have been eliminated in consolidation.

Cash and Cash Equivalents

Cash and cash equivalents are considered to be highly liquid investments with maturities of three months or less at the date of purchase.

Property and Equipment

Property and equipment is stated at cost. Repairs and maintenance costs are expensed in the period incurred. Depreciation is calculated using the straight-line method over the
estimated useful lives of the assets. The estimated useful lives of property and equipment range from three to seven years.

Impairment of Long-Lived Assets

Our  long-lived  assets  consist  of  property  and  equipment.  Long-lived  assets  to  be  held  and  used  are  tested  for  recoverability  whenever  events  or  changes  in  business
circumstances indicate that the carrying amount of the assets may not be fully recoverable. Factors that we consider in deciding when to perform an impairment review include
significant underperformance of the business in relation to expectations, significant negative industry or economic trends, and significant changes or planned changes in our use
of the assets. An impairment loss would be recognized when estimated undiscounted future cash flows expected to result from the use of an asset are less than its carrying
amount. The impairment loss would be based on the excess of the carrying value of the impaired asset over its fair value, determined based on discounted cash flows. To date,
we have not recorded any impairment losses on long-lived assets.

Revenue Recognition

We  have  historically  generated  revenue  principally  from  collaborative  research  and  development  arrangements,  licensing  and  technology  transfer  agreements,  including
strategic licenses or sublicenses, and government grants. We adopted Accounting Standards Update (ASU) No. 2014-09, Revenue from Contracts with Customers (Topic 606)
and its related amendments, collectively referred to as ASC (Accounting Standards Codification) Topic 606, as of April 1, 2018, using the modified retrospective transition
method. At adoption and currently, we have only the BlueRock Agreement as a potential revenue generating arrangement. Upon adoption of ASC Topic 606, there was no
change to the units of accounting previously identified with respect to the BlueRock Agreement under legacy GAAP, which are now considered performance obligations under
ASC Topic 606, and there was no change to the revenue recognition pattern for the performance obligation. Accordingly, there was no cumulative effect change to our opening
accumulated deficit upon the adoption of ASC Topic 606.

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Under ASC Topic 606, we recognize revenue when our customer obtains control of promised goods or services, in an amount that reflects the consideration that 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  Topic  606,  we  perform  the
following five steps: (i) identify the contract with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price, including variable
consideration,  if  any;  (iv)  allocate  the  transaction  price  to  the  performance  obligations  in  the  contract;  and  (v)  recognize  revenue  when  (or  as)  we  satisfy  a  performance
obligation.  We  only  apply  the  five-step  model  to  contracts  when  it  is  probable  that  we  will  collect  the  consideration  to  which  we  are  entitled  in  exchange  for  the  goods  or
services we transfer to a customer.

Once a contract is determined to be within the scope of Topic 606, we assesses the goods or services promised within each contract and determine those that are performance
obligations. Arrangements that include rights to additional goods or services that are exercisable at a customer’s discretion are generally considered options. We assess whether
these options provide a material right to the customer and if so, they are considered performance obligations. The exercise of a material right may be accounted for as a contract
modification or as a continuation of the contract for accounting purposes.

We assess whether each promised good or service is distinct for the purpose of identifying the performance obligations in the contract. This assessment involves subjective
determinations and requires judgments about the individual promised goods or services and whether such are separable from the other aspects of the contractual relationship.
Promised goods and services are considered distinct provided that: (i) the customer can benefit from the good or service either on its own or together with other resources that
are readily available to the customer (that is, the good or service is capable of being distinct) and (ii) our promise to transfer the good or service to the customer is separately
identifiable from other promises in the contract (that is, the promise to transfer the good or service is distinct within the context of the contract). In assessing whether a promised
good or service is distinct in the evaluation of a collaboration arrangement subject to Topic 606, we consider factors such as the research, manufacturing and commercialization
capabilities  of  the  collaboration  partner  and  the  availability  of  the  associated  expertise  in  the  general  marketplace.  We  also  consider  the  intended  benefit  of  the  contract  in
assessing whether a promised good or service is separately identifiable from other promises in the contract. If a promised good or service is not distinct, we are required to
combine that good or service with other promised goods or services until we identify a bundle of goods or services that is distinct.

The transaction price is then determined and allocated to the identified performance obligations in proportion to their standalone selling prices (SSP) on a relative SSP basis.
SSP is determined at contract inception and is not updated to reflect changes between contract inception and satisfaction of the performance obligations. Determining the SSP
for  performance  obligations  requires  significant  judgment.  In  developing  the  SSP  for  a  performance  obligation,  we  consider  applicable  market  conditions  and  relevant
Company-specific factors, including factors that were contemplated in negotiating the agreement with the customer and estimated costs. In certain circumstances, we may apply
the residual method to determine the SSP of a good or service if the standalone selling price is considered highly variable or uncertain. We validate the SSP for performance
obligations  by  evaluating  whether  changes  in  the  key  assumptions  used  to  determine  the  SSP  will  have  a  significant  effect  on  the  allocation  of  arrangement  consideration
between multiple performance obligations.

If the consideration promised in a contract includes a variable amount, we estimate the amount of consideration to which we will be entitled in exchange for transferring the
promised goods or services to a customer. We determine the amount of variable consideration by using the expected value method or the most likely amount method. We include
the unconstrained amount of estimated variable consideration in the transaction price. The amount included in the transaction price is constrained to the amount for which it is
probable  that  a  significant  reversal  of  cumulative  revenue  recognized  will  not  occur. At  the  end  of  each  subsequent  reporting  period,  we  re-evaluate  the  estimated  variable
consideration  included  in  the  transaction  price  and  any  related  constraint,  and  if  necessary,  adjust  our  estimate  of  the  overall  transaction  price. Any  such  adjustments  are
recorded on a cumulative catch-up basis in the period of adjustment.

If an arrangement includes development and regulatory milestone payments, we evaluate whether the  milestones  are  considered  probable  of  being  reached  and  estimate  the
amount to be included in the transaction price using the most likely amount method. If it is probable that a significant revenue reversal would not occur, the associated milestone
value is included in the transaction price. Milestone payments that are not within our control or the licensee’s control, such as regulatory approvals, are generally not considered
probable of being achieved until those approvals are received.

In  determining  the  transaction  price,  we  adjust  consideration  for  the  effects  of  the  time  value  of  money  if  the  timing  of  payments  provides  us  with  a  significant  benefit  of
financing. We do not assess whether a contract has a significant financing component if the expectation at contract inception is such that the period between payment by the
licensee and the transfer of the promised goods or services to the licensee will be one year or less. For arrangements with licenses of intellectual property that include sales-
based royalties, including milestone payments based on the level of sales, and the license is deemed to be the predominant item to which the royalties relate, we recognize
royalty revenue and sales-based milestones at the later of (i) when the related sales occur, or (ii) when the performance obligation to which the royalty has been allocated has
been satisfied.

We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) each performance obligation is satisfied
at a point in time or over time, and if over time, based on the use of an output or input method.

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Research and Development Expenses

Research and development expenses are composed of both internal and external costs.  Internal costs include salaries and employment-related expenses, including stock-based
compensation  expense,  of  scientific  personnel  and  direct  project  costs.    External  research  and  development  expenses  consist  primarily  of  costs  associated  with  clinical  and
nonclinical development of AV-101, PH94B and PH10, stem cell research and development costs, and costs related to the application and prosecution of patents related to AV-
101 and our stem cell technology platform. All such costs are charged to expense as incurred.

We also record accruals for estimated ongoing clinical trial costs. Clinical trial costs represent costs incurred by contract research organizations (CROs) and clinical trial sites.
Progress payments are generally made to CROs, clinical sites, investigators and other professional service providers. We analyze the progress of the clinical trial, including
levels of subject enrollment, invoices received and contracted costs when evaluating the adequacy of accrued liabilities. Significant judgments and estimates must be made in
determining the clinical trial accrual in any reporting period. Actual results could differ from those estimates under different assumptions. Revisions are charged to research and
development expense in the period in which the facts that give rise to the revision become known.

Costs incurred in obtaining product or technology licenses are charged immediately to research and development expense if the product or technology licensed has not achieved
regulatory  approval  or  reached  technical  feasibility  and  has  no  alternative  future  uses.  In  September  2018,  we  acquired  an  exclusive  license  to  develop  and  commercialize
PH94B and an option to acquire a license to develop and commercialize PH10 by issuing an aggregate of 1,630,435 unregistered shares of our common stock having a fair
market value of $2,250,000. In October 2018, we exercised our option to acquire an exclusive license to develop and commercialize PH10 by issuing 925,926 shares of our
unregistered common stock having a fair market value of $2,000,000. Since, at the date of each acquisition, neither product candidate had achieved regulatory approval and
each will require significant additional development and expense, we recorded the costs related to acquiring the licenses and the option as research and development expense.

Stock-Based Compensation

We recognize compensation cost for all stock-based awards to employees and non-employee consultants based on the grant date fair value of the award.  We record stock-based
compensation expense over the period during which the employee is required to perform services in exchange for the award, which generally represents the scheduled vesting
period.  We have not granted restricted stock awards to employees nor do we have any awards with market or performance conditions.  For option grants to non-employees, we
have historically re-measured the fair value of the awards as they vest and any resulting increase in value has been recognized as an expense during the period over which the
services are performed. Noncash expense attributable to compensatory grants of stock to non-employees is determined by the quoted market price of the stock on the date of
grant and is either recognized as fully-earned at the time of the grant or expensed ratably over the term of the related service agreement, depending on the terms of the specific
agreement.

Income Taxes

We  account  for  income  taxes  using  the  asset  and  liability  approach  for  financial  reporting  purposes.  Deferred  tax  assets  and  liabilities  are  recognized  for  the  future  tax
consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and
tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in  the  years  in  which  those  temporary
differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the
enactment date. Valuation allowances are established, when necessary, to reduce the deferred tax assets to an amount expected to be realized.

Concentrations of Credit Risk

Financial instruments, which potentially subject us to concentrations of credit risk, consist of cash and cash equivalents. Our investment policies limit any such investments to
short-term, low-risk investments. We deposit cash and cash equivalents with quality financial institutions and are insured to the maximum of federal limitations. Balances in
these accounts may exceed federally insured limits at times.

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Fair Value Measurements

We do not use derivative instruments for hedging of market risks or for trading or speculative purposes. When applicable, we follow the principles of fair value accounting as
they relate to our financial assets and financial liabilities. Fair value is defined as the estimated exit price received to sell an asset or paid to transfer a liability in an orderly
transaction between market participants at the measurement date, rather than an entry price that represents the purchase price of an asset or liability.  Where available, fair value
is  based  on  observable  market  prices  or  parameters,  or  derived  from  such  prices  or  parameters.    Where  observable  prices  or  inputs  are  not  available,  valuation  models  are
applied.    These  valuation  techniques  involve  some  level  of  management  estimation  and  judgment,  the  degree  of  which  is  dependent  on  several  factors,  including  the
instrument’s complexity.  The required fair value hierarchy that prioritizes observable and unobservable inputs used to measure fair value into three broad levels is described as
follows:

●  Level 1 — Quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities. The fair value hierarchy gives the highest

priority to Level 1 inputs.

●  Level 2 — Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that

are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

●  Level 3 — Unobservable inputs (i.e., inputs that reflect the reporting entity’s own assumptions about the assumptions that market participants would use in estimating the

fair value of an asset or liability) are used when little or no market data is available. The fair value hierarchy gives the lowest priority to Level 3 inputs.

A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.  Where quoted
prices  are  available  in  an  active  market,  securities  are  classified  as  Level  1  of  the  valuation  hierarchy.  If  quoted  market  prices  are  not  available  for  the  specific  financial
instrument, then we estimate fair value by using pricing models, quoted prices of financial instruments with similar characteristics or discounted cash flows. In certain cases
where there is limited activity or less transparency around inputs to valuation, financial assets or liabilities are classified as Level 3 within the valuation hierarchy.

We carried no assets or liabilities that are measured on a recurring basis at fair value at March 31, 2019 or 2018.

Warrants Issued in Connection with Equity Financing

We generally account for warrants issued in connection with equity financings as a component of equity, unless there is a deemed possibility that we may have to settle the
warrants  in  cash  or  the  warrants  contain  other  features  requiring  them  to  be  treated  as  liabilities.  For  warrants  issued  with  the  possibility  of  cash  settlement,  or  otherwise
requiring liability treatment, we record the fair value of the issued warrants as a liability at each reporting period and record changes in the estimated fair value as noncash gain
or loss in the Consolidated Statements of Operations and Comprehensive Loss.

Comprehensive Loss

We have no components of other comprehensive loss other than net loss, and accordingly our comprehensive loss is equivalent to our net loss for the periods presented.

Loss per Common Share Attributable to Common Stockholders

Basic net loss attributable to common stockholders per share of common stock excludes the effect of dilution and is computed by dividing net loss increased by the accrual for
dividends on our Series B Preferred and, for the fiscal year ended March 31, 2018, the deemed dividend attributable to the trigger of a down-round provision feature (refer to
Note 9, Capital Stock, for a description of this adjustment), by the weighted-average number of shares of common stock outstanding for the period. Diluted net loss attributable
to  common  stockholders  per  share  of  common  stock  reflects  the  potential  dilution  that  could  occur  if  securities  or  other  contracts  to  issue  shares  of  common  stock  were
exercised  or  converted  into  shares  of  common  stock.  In  calculating  diluted  net  loss  attributable  to  common  stockholders  per  share,  we  have  generally  not  increased  the
denominator to include the number of potentially dilutive common shares assumed to be outstanding during the period using the treasury stock method because the result is
antidilutive.

As  a  result  of  our  net  loss  for  both  years  presented,  potentially  dilutive  securities  were  excluded  from  the  computation  of  diluted  loss  per  share,  as  their  effect  would  be
antidilutive.

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Basic and diluted net loss attributable to common stockholders per share was computed as follows:

 Numerator:
 Net loss attributable to common stockholders for basic and diluted earnings

per share

 Denominator:

 Fiscal Years Ended March 31,

 2019

 2018

  $

(25,729,500)

  $

(15,575,500)

 Weighted average basic and diluted common shares outstanding

28,562,490 

13,890,041 

 Basic and diluted net loss attributable to common stockholders per common share

  $

(0.90)

  $

(1.12)

Potentially dilutive securities excluded in determining diluted net loss per common share for the fiscal years ended March 31, 2019 and 2018 are as follows:

Series A Preferred stock issued and outstanding (1)
Series B Preferred stock issued and outstanding (2)
Series C Preferred stock issued and outstanding (3)
Outstanding options under the Amended and Restated 2016 (formerly 2008) Stock Incentive Plan
Outstanding warrants to purchase common stock

As of March 31,

2019

2018

750,000 
1,160,240 
2,318,012 
6,626,088 
21,453,402 

750,000 
1,160,240 
2,318,012 
5,300,338 
16,603,516 

Total
____________
(1) Assumes exchange under the terms of the October 11, 2012 Note Exchange and Purchase Agreement, as amended
(2) Assumes exchange under the terms of the Certificate of Designation of the Relative Rights and Preferences of the Series B 10% Convertible Preferred Stock, effective May
5, 2015; excludes common shares issuable in payment of dividends on Series B Preferred upon conversion
(3) Assumes exchange under the terms of the Certificate of Designation of the Relative Rights and Preferences of the Series C Convertible Preferred Stock, effective January
25, 2016

32,307,742 

26,132,106 

Recent Accounting Pronouncements

We believe the following recent accounting pronouncements or changes in accounting pronouncements are of significance or potential significance to the Company.

In February 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU)  2016-02, Leases (ASC 842), which will replace the existing
guidance in ASC 840, Leases, and which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e. lessees
and lessors). The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease
is effectively a financed purchase by the lessee. This classification will determine whether lease expense is recognized based on an effective interest method or on a straight-line
basis over the term of the lease, respectively. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months
regardless  of  their  classification.  Leases  with  a  term  of  12  months  or  less  will  be  accounted  for  similar  to  the  current  guidance  for  operating  leases.  This  standard  becomes
effective for our fiscal year beginning April 1, 2019. We estimate that we will record lease liabilities of approximately $4.5 million and right-of-use assets approximating $4.1
million upon implementation of ASC 842. We have evaluated our contracts with clinical research and manufacturing organizations and determined that such contracts do not
contain embedded leases.

In June 2018, the FASB issued ASU 2018-07, Compensation-Stock Compensation (Topic 718), Improvements to Nonemployee Share-Based Payment Accounting (ASU 2018-
07). ASU 2018-07 expands the scope of Topic 718 to include share-based payment transactions for acquiring goods and services from nonemployees. ASU 2018-07 aligns the
accounting  for  share-based  payment  awards  issued  to  employees  and  non-employees.  Under ASU  2018-07,  the  existing  guidance  regarding  share-based  transactions  with
employees will apply to share-based transactions with non-employees, as long as the transaction is not effectively a form of financing, with the exception of specific guidance
related  to  the  attribution  of  compensation  cost.  The  cost  of  non-employee  awards  will  continue  to  be  recorded  as  if  the  grantor  had  paid  cash  for  the  goods  or  services.  In
addition,  the  contractual  term  may  be  used  in  lieu  of  an  expected  term  in  the  option-pricing  model  for  non-employee  awards. ASU  2018-07  is  effective  for  our  fiscal  year
beginning April  1,  2019.  We  are  evaluating  the  impact  of  this  new  guidance,  but  we  do  not  believe  that  our  adoption  of ASU  2018-17  will  have  a  material  impact  on  our
consolidated financial statements.

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In  July  2017,  the  Financial  Accounting  Standards  Board  (FASB)  issued  Accounting  Standards  Update  (ASU)  2017-11,  “Earnings  Per  Share  (Topic  260);  Distinguishing
Liabilities  from  Equity  (Topic  480);  Derivatives  and  Hedging  (Topic  815):  Part  I:  Accounting  for  Certain  Financial  Instruments  with  Down  Round  Features;  Part  II:
Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling
Interests with a Scope Exception” (ASU 2017-11).  Part  I  of  this ASU  provides  that  an  entity  will  no  longer  have  to  consider  “down  round”  features  (i.e.,  a  provision  in  an
equity-linked financial instrument, such as a free-standing warrant, or an embedded feature, such as a conversion option in a convertible instrument, that reduces the exercise
price of such instrument if the entity subsequently sells stock for a lower price or issues an equity-linked instrument with a lower exercise price) when determining whether
certain  equity-linked  financial  instruments  or  embedded  features  are  indexed  to  its  own  stock.  The  definition  of  a  down  round  feature  in ASU  2017-11  excludes  standard
antidilution  provisions  related  to  changes  in  an  entity’s  capital  structure. Accounting  Standards  Codification  Topic  815-40,  “Derivatives  and  Hedging–Contracts  in  Entity’s
Own Equity” (ASC 815-40)  requires  that  a  freestanding  equity-linked  financial  instrument  be  indexed  to  the  issuer’s  own  stock  to  be  classified  as  equity. An  equity-linked
embedded feature that meets the definition of a derivative may avoid bifurcation and derivative accounting if it is indexed to the issuer’s own stock. Under the terms of prior
guidance, a freestanding financial instrument or embedded feature was not considered indexed to the issuer’s own stock if it had a down round provision. Consequently, the
freestanding financial instrument was classified as a liability (or asset), and if it met the definition of a derivative, was measured at fair value with changes in fair value recorded
through earnings. Similarly, an embedded feature was bifurcated and separately accounted for as a derivative if it met all other criteria for bifurcation under ASC 815-40. The
bifurcated embedded feature was also measured at fair value through earnings. Under the provisions of ASU 2017-11, an entity that presents earnings per share (EPS) under
Accounting Standards Codification Topic 260, “Earnings Per Share” will recognize the effect of a down round feature in a freestanding equity-classified financial instrument
only when it is triggered. The effect of triggering such a feature will be recognized as a dividend and a reduction to income available to common shareholders in basic EPS. The
new guidance requires new disclosures for financial instruments with down round features and other terms that change conversion or exercise prices. Part I of ASU 2017-11
became effective for fiscal years beginning after December 15, 2018, however early adoption was permitted. We early-adopted ASU 2017-11 effective for our fiscal quarter
ended September 30, 2017 and applied its guidance to certain of the warrants issued in the September 2017 Public Offering, as described more completely in Note 9, Capital
Stock. No retrospective adjustment to our consolidated financial statements was required as a result of our adoption of ASU 2017-11.

In  May  2014,  the  FASB  issued ASU  No.  2014-09, Revenue  from  Contracts  with  Customers  (Topic  606),  to  provide  guidance  on  revenue  recognition.  In August  2015  and
March, April,  May  and  December  2016,  the  FASB  issued  additional  amendments  to  the  new  revenue  guidance  relating  to  reporting  revenue  on  a  gross  versus  net  basis,
identifying performance obligations, licensing arrangements, collectability, noncash consideration, presentation of sales tax, transition, and clarifying examples. Collectively
these  are  referred  to  as ASC  Topic  606,  which  replaces  all  legacy  GAAP  guidance  on  revenue  recognition  and  eliminates  all  industry-specific  guidance.  The  new  revenue
recognition guidance provides a unified model to determine how revenue is recognized. The core principal of the guidance is that an entity should recognize revenue when it
transfers  promised  goods  or  services  to  customers  in  an  amount  that  reflects  the  consideration  to  which  the  company  expects  to  be  entitled  in  exchange  for  those  goods  or
services. ASC Topic 606 defines a five-step process to achieve this core principal which may require entities to use more judgment and make more estimates than under legacy
guidance.  These  estimates  and  judgments  include  identifying  performance  obligations  in  the  contract,  estimating  the  amount  of  variable  consideration  to  include  in  the
transaction price and allocating the transaction price to each distinct performance obligation. We adopted ASC Topic 606 as of April 1, 2018, using the modified retrospective
transition method, applying the new guidance to the most current period presented. At adoption and currently, we have only the BlueRock Agreement as a potential revenue
generating arrangement. We identified no change to the units of accounting previously identified with respect to that contract under legacy GAAP, which are now considered
performance  obligations  under ASC  Topic  606,  nor  did  we  identify  any  change  to  the  revenue  recognition  pattern  for  the  performance  obligation. Accordingly,  we  did  not
recognize a cumulative effect change to our opening accumulated deficit upon our adoption of ASC Topic 606.

In May 2017, the FASB issued ASU 2017-09,  Compensation - Stock Compensation (Topic 718): Scope of Modification Accounting, to clarify which changes to the terms or
conditions  of  a  share-based  payment  award  require  an  entity  to  apply  modification  accounting  under ASC  718.  Under  this  guidance,  an  entity  will  not  apply  modification
accounting to a share-based payment award if all of the following remain unchanged immediately before and after the change of terms and conditions:

●

●

●

The  award’s  fair  value  (or  calculated  value  or  intrinsic  value,  if  those  measurement  methods  are
used),
The  award’s  vesting  conditions,
and
The  award’s  classification  as  an  equity  or 
instrument.

liability

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We adopted ASU 2017-09 effective for our fiscal year beginning April 1, 2018. Our adoption of ASU 2017-09 did not have a material impact on our financial statements.

Other accounting standards that have been issued or proposed by the FASB or other standards-setting bodies that do not require adoption until a future date are not expected to
have a material impact on our consolidated financial statements upon adoption.

4.  Receivable from Supplier

This amount reflects the balance of a prepayment made to a supplier that is to be refunded due to the termination of the underlying contract prior to March 31, 2019.

5. Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consist of the following:

 AV-101 and PH94B materials and contract services
 Fair value of securities issued for professional services
 Insurance
 Public offering filing fees and expenses
 All other

6.  Property and Equipment

Property and equipment consists of the following:

 Laboratory equipment
 Tenant improvements
 Computers and network equipment
 Office furniture and equipment

 Accumulated depreciation and amortization

 Property and equipment, net

 March 31,

 2019

 2018

  $

  $

5,900 
105,900 
96,300 
22,300 
20,500 

505,900 
- 
88,300 
25,900 
24,700 

  $

250,900 

  $

644,800 

 March 31,

 2019

 2018

  $

  $

892,500 
214,400 
54,600 
84,600 
1,246,100 

888,300 
26,900 
54,600 
79,700 
1,049,500 

(933,400)

(842,100)

  $

312,700 

  $

207,400 

The increase in tenant improvements reflects recently completed construction at our South San Francisco, California offices. Under the terms of our November 2016 lease
extension agreement, our landlord has provided a cash reimbursement of $158,600 of such tenant improvement costs. Such reimbursement is a component of the deferred rent
liability shown on our Consolidated Balance Sheet at March 31, 2019.

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The following table summarizes depreciation and amortization expense attributable to owned and leased property and equipment for the fiscal years ended March 31, 2019 and
2018:

 Owned assets
 Leased assets

 Total depreciation and amortization

Other than certain leased office equipment, none of our assets were subject to third party security interests at March 31, 2019 or 2018.

7.  Accrued Expenses

Accrued expenses consist of:

 Accrued AV-101 clinical trial, development, and
      related expenses
 Accrued compensation
 Accrued professional services
 All other

8.  Notes Payable

The following table summarizes our notes payable:

 Fiscal Years Ended March 31,

 2019

 2018

  $

  $

88,300 
2,900 

  $

77,800 
2,900 

91,200 

  $

80,700 

 March 31,

 2019

 2018

  $

  $

1,067,600 
439,200 
172,100 
6,700 

176,600 
- 
27,000 
2,700 

  $

1,685,600 

  $

206,300 

Principal
Balance

March 31, 2019
Accrued
Interest

Total

Principal
Balance

March 31, 2018
Accrued
Interest

Total

7.75% (2019) and 7.15% (2018) Notes payable
to insurance premium financing company (current)

 $ 57,300

 $ -

 $ 57,300  

 $ 53,900

 $ -

 $ 53,900

In February 2018, we executed a 7.15% promissory note in the principal amount of $59,700 in connection with certain insurance policy premiums. That note was payable in
monthly installments of $6,200, including principal and interest, through December 2018, when it was paid in full. In May 2018, we executed a 6.50% promissory note in the
principal amount of $160,500 in connection with other insurance policy premiums. That note was payable in monthly installments of $16,500, including principal and interest,
through March 2019, when it was paid in full. In February 2019, we executed a 7.75% promissory note in the face amount of $63,500 in connection with other insurance policy
premiums.  The  note  is  payable  in  monthly  installments  of  $6,600,  including  principal  and  interest,  through  December  2019,  and  has  an  outstanding  balance  of  $57,300  at
March 31, 2019.

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9.  Capital Stock

Common Stock

At  our Annual  Meeting  of  Stockholders  on  September  15,  2017,  as  approved  by  and  recommended  to  our  stockholders  by  our  Board  of  Directors  (Board),  our  stockholders
approved an amendment to our Restated Articles of Incorporation to increase the authorized number of shares of common stock that we may issue from 30.0 million shares to
100.0 million shares. The amendment became effective on September 15, 2017, upon our filing of a certificate of amendment with the Nevada Secretary of State. In connection
with the underwritten public offering of our common stock and warrants in May 2016, our common stock was approved for listing on the Nasdaq Capital Market. Our common
stock has been trading on the Nasdaq Capital Market under the symbol “VTGN” since May 11, 2016.

Series A Preferred Stock

In December 2011, our Board authorized the creation of a series of up to 500,000 shares of Series A Preferred, par value $0.001 ( Series A Preferred).  Each restricted share of
Series A Preferred is currently convertible at the option of the holder into one and one-half restricted shares of our common stock.  The Series A Preferred ranks prior to the
common stock for purposes of liquidation preference.

The Series A Preferred has no separate dividend rights, however, whenever the Board declares a dividend on the common stock, each holder of record of a share of Series A
Preferred shall be entitled to receive an amount equal to such dividend declared on one share of common stock multiplied by the number of shares of common stock into which
such share of Series A Preferred could be converted on the applicable record date.

Except with respect to transactions upon which the Series A Preferred shall be entitled to vote separately as a class, the Series A Preferred has no voting rights. The restricted
common stock into which the Series A Preferred is convertible shall, upon issuance, have all of the same voting rights as other issued and outstanding shares of our common
stock.

In  the  event  of  the  liquidation,  dissolution  or  winding  up  of  our  affairs,  after  payment  or  provision  for  payment  of  our  debts  and  other  liabilities,  the  holders  of  Series A
Preferred then outstanding shall be entitled to receive distributions out of our assets, if any, an amount per share of Series A Preferred calculated by taking the total amount
available for distribution to holders of all of our outstanding common stock before deduction of any preference payments for the Series A Preferred, divided by the total of (x),
all of the then outstanding shares of our common stock, plus (y) all of the shares of our common stock into which all of the outstanding shares of the Series A Preferred can be
converted before any payment shall be made or any assets distributed to the holders of the common stock or any other junior stock.

At March 31, 2019 and 2018, there were 500,000 restricted shares of Series A Preferred outstanding, convertible into 750,000 shares of our common stock at the option of the
two respective holders.

Series B Preferred Stock

In July 2014, our Board authorized the creation of a class of Series B Preferred Stock, par value $0.001 (Series B Preferred). In May 2015, we filed a Certificate of Designation
of the Relative Rights and Preferences of the Series B 10% Preferred Stock of VistaGen Therapeutics, Inc. ( Certificate of Designation) with the Nevada Secretary of State to
designate 4.0 million shares of our authorized preferred stock as Series B Preferred.

Each share of Series B Preferred is convertible, at the option of the holder (Voluntary Conversion),  into  one  (1)  share  of  our  common  stock,  subject  to  adjustment  only  for
customary  stock  dividends,  reclassifications,  splits  and  similar  transactions  set  forth  in  the  Certificate  of  Designation.  Outstanding  shares  of  Series  B  Preferred  are  also
convertible automatically on a one-to-one basis into shares of our common stock (Automatic Conversion) upon the closing or effective date of any of the following transactions
or events: (i) a strategic transaction involving AV-101 with an initial up-front cash payment to us of at least $10.0 million; (ii) a registered public offering of our common stock
with aggregate gross proceeds to us of at least $10.0 million; or (iii) for 20 consecutive trading days, our common stock trades at least 20,000 shares per day with a daily closing
price  of  at  least  $12.00  per  share;  provided,  however,  that  Automatic  Conversion  and  Voluntary  Conversion  (collectively,   Conversion)  are  subject  to  certain  beneficial
ownership blockers as set forth in the Certificate of Designation and/or securities purchase agreements. Following the completion of our underwritten public offering in May
2016,  which  occurred  concurrently  with  and  facilitated  the  listing  of  our  common  stock  on  the  NASDAQ  Capital  Market,  approximately  2.4  million  shares  of  Series  B
Preferred  were  converted  automatically  into  approximately  2.4  million  shares  of  our  common  stock  pursuant  to  the Automatic  Conversion  provision.  There  have  been  no
conversions of Series B Preferred since August 2016.

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Prior to Conversion, shares of Series B Preferred accrue in-kind dividends (payable only in unregistered shares of our common stock) at a rate of 10% per annum (Accrued
Dividends).  The Accrued Dividends are payable on the date of either a Voluntary Conversion or Automatic Conversion in that number of shares of common stock equal to the
Accrued Dividends. At March 31, 2019, we have recognized a liability in the amount of $3,748,200 for Accrued Dividends in the  accompanying Consolidated Balance Sheet at
March 31, 2019, based on the Series B Preferred issued and outstanding through that date. We have recognized a deduction from net loss of $1,139,900 and $1,030,400 related
to dividends on Series B Preferred in arriving at net loss attributable to common stockholders in the accompanying Consolidated Statement of Operations and Comprehensive
Loss for the fiscal years ended March 31, 2019 and 2018, respectively.

In the event of the liquidation, dissolution or winding-up of our affairs, after payment or provision for payment of our debts and other liabilities, the Holders of the Series B
Preferred then outstanding shall be entitled to receive distributions out of our assets, if any, an amount equal to the Stated Value of the Series B Preferred ($7.00 per share), plus
any accrued and unpaid dividends thereon, before any distribution or payment shall be made to the holders of any junior securities, including holders of our common stock. If
our assets are insufficient to pay, in full, such amounts, then the entire assets to be distributed to the holders of the Series B Preferred shall be ratably distributed among the
holders in accordance with the respective amounts that would be payable on such shares if all amounts payable thereon were paid in full. Upon liquidation, each share of Series
B  Preferred  ranks  pari-passu  with  our  Series A  Preferred  and  our  Series  C  Preferred  (defined  below). The  liquidation  value  of  the  Series  B  Preferred  at  March  31,  2019  is
approximately $11,869,800.

At March 31, 2019 and 2018, there were 1,160,240 shares of Series B Preferred outstanding, which shares are subject to beneficial ownership blockers and are exchangeable at
the option of the two respective holders by Voluntary Conversion, or pursuant to Automatic Conversion to the extent not otherwise subject to beneficial ownership blockers, into
an aggregate of 1,160,240 shares of our common stock, excluding shares of our common stock which may be issued in payment of Accrued Dividends upon conversion.

Series C Preferred Stock

In January 2016, our Board authorized the creation of and, accordingly, we filed a Certificate of Designation of the Relative Rights and Preferences of the Series C Convertible
Preferred Stock of VistaGen Therapeutics, Inc. (the  Series C Preferred Certificate of Designation) with the Nevada Secretary of State to designate 3.0 million shares of our
preferred stock, par value $0.001 per share, as Series C Convertible Preferred Stock (Series C Preferred).

In  the  event  of  the  liquidation,  dissolution  or  winding  up  of  our  affairs,  after  payment  or  provision  for  payment  of  our  debts  and  other  liabilities,  the  holders  of  Series  C
Preferred then outstanding shall be entitled to receive, out of our assets, if any, an amount per share of Series C Preferred calculated by taking the total amount available for
distribution to holders of all of our outstanding common stock before deduction of any preference payments for the Series C Preferred, divided by the total of (x), all of the then
outstanding shares of our common stock, plus (y) all of the shares of our common stock into which all of the outstanding shares of the Series C Preferred can be exchanged
before any payment shall be made or any assets distributed to the holders of the common stock or any other junior stock. Upon liquidation, each share of Series C Preferred
ranks pari-passu with our Series B Preferred and our Series A Preferred.

Each share of Series C Preferred is convertible, at the option of the holder into one share of our common stock, subject to certain beneficial ownership limitations as set forth in
the Series C Preferred Certificate of Designation. Shares of the Series C Preferred do not accrue dividends, and holders of the Series C Preferred have no voting rights. At
March 31, 2019 and 2018, one holder and its affiliates held all 2,318,012 outstanding shares of Series C Preferred.

Common Stock and Warrants Issued in September 2017 Public Offering

On September 6, 2017, we completed a public offering of units consisting of shares of common stock and Series A1 and A2 common stock purchase warrants to two of our
existing institutional investors (the September 2017 Public Offering), resulting in gross proceeds of approximately $2.4 million. We issued an aggregate of 1,371,430 shares of
our common stock, Series A1 Warrants to purchase up to 1,388,931 shares of common stock and Series A2 Warrants to purchase up to 503,641 of common stock (collectively,
the Warrants), each exercisable for $1.82 per share. The Series A1 Warrants became exercisable by the investors for a five-year period commencing on March 7, 2018, and the
Series A2 Warrants were immediately exercisable at any time through September 6, 2022. The common stock and the shares of common stock underlying the Warrants issued
in  the  September  2017  Public  Offering  were  offered,  issued  and  sold  pursuant  to  our  S-3  Registration  Statement  (Registration  No.  333-215671)  that  had  previously  been
declared effective by the Securities and Exchange Commission (the Commission) to cover this and potential future sales of our equity securities in one or more public offerings
from  time  to  time. We  received  net  proceeds  of  approximately  $2.0  million  from  the  September  2017  Public  Offering,  after  deducting  underwriter’s  commission  and  other
expenses related to the offering.

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The Series A1 Warrants to purchase an aggregate of 1,388,931 shares of our common stock issued in the September 2017 Public Offering have no anti-dilution or other exercise
price or share reset features, except as is customary with respect to a change in our capital structure in the event of a stock split or dividend, and, accordingly, we accounted for
them as equity warrants. The Series A2 Warrants to purchase an aggregate of 503,641 shares of our common stock contained anti-dilution protection provisions that would take
effect upon the issuance of any common stock, securities convertible into common stock or certain other issuances at a price below the then-current ($1.82 per share) exercise
price of the Series A2 Warrants, with certain exceptions; provided, however, that such anti-dilution protection would terminate automatically on the trading day following the
date  on  which  we  raised  at  least  $20.0  million  in  aggregate  gross  proceeds  through  one  or  more  issuances  of  common  stock  or  equity-linked  securities.  The  anti-dilution
protection provisions in the Series A2 Warrants constituted a down round feature subject to the guidance in ASU 2017-11. Since the Series A2 Warrants contained no other
provisions which required their treatment as liability warrants rather than equity warrants, including exercise price or share reset features, except as is customary with respect to
a change in our capital structure in the event of a stock split or dividend and which are also present in the Series A1 Warrants, we also accounted for the Series A2 Warrants as
equity warrants. The anti-dilution protection provisions of the Series A2 Warrants were triggered upon our issuance of common stock and warrants in the December 2017 Public
Offering (defined below) at a price below the Series A2 Warrants’ then-current $1.82 per share exercise price.

Common Stock and Warrants Issued in December 2017 Public Offering and Trigger of Anti-Dilution Protection Provisions of Series A2 Warrants Issued in September
2017 Public Offering

On December 13, 2017, we completed a public offering of units consisting of shares of common stock and common stock purchase warrants at a combined public offering
price of $1.50 per share and related warrant (the December 2017 Public Offering), resulting in gross proceeds of $15.0 million. We issued an aggregate of 10,000,000 shares of
our common stock and warrants to purchase up to 10,000,000 shares of our common stock at an exercise price of $1.50 per share (the December 2017 Offering Warrants). The
common stock and the shares of common stock underlying the December 2017 Offering Warrants issued in the December 2017 Public Offering were offered, issued and sold
pursuant to our Registration Statement on Form S-1 (Registration No. 333-221009) that was declared effective by the Commission on December 11, 2017. The December 2017
Offering Warrants are exercisable at any time through December 13, 2022, have no anti-dilution or other exercise price or share reset features, except as is customary with
respect to a change in our capital structure in the event of a stock split or dividend, and do not contain any cashless exercise features as long as our Registration Statement on
Form S-1 (Registration No. 333-221009) is effective. Accordingly, we accounted for the December 2017 Offering Warrants as equity warrants. We received net proceeds of
approximately $13.6 million from the December 2017 Public Offering, after deducting underwriter’s commission and other expenses related to the offering.

Our sale of units consisting of common stock and warrants in the December 2017 Public Offering at an offering price of $1.50 per unit triggered the anti-dilution provisions of
the Series A2 Warrants. In accordance with the anti-dilution terms and formula contained in the Series A2 warrants, the exercise price of the Series A2 Warrants was reduced to
$0.001 per share. In December 2017 and January 2018, the holders exercised the reset Series A2 warrants to purchase an aggregate of 503,641 shares of our common stock
from which we received nominal cash proceeds. In accordance with the guidance in ASU 2017-11, we recognized the effect of triggering the down round feature as a deemed
dividend in our Consolidated Statements of Stockholders’ Equity for the fiscal year ended March 31, 2018 and as an increase in net loss attributable to common stockholders
and in our calculation of basic and fully diluted earnings per share in our Consolidated Statements of Operations and Comprehensive Loss for the fiscal year ended March 31,
2018.

We  calculated  the  deemed  dividend  from  the  trigger  of  the  down  round  provision  feature,  $199,200,  using the  Black-Scholes  Option  Pricing  Model  and  the  assumptions
indicated in the table below:

Assumption:
Market price per share
Exercise price per share
Risk-free interest rate
Remaining contractual term in years
Volatility
Dividend rate

Number of warrant shares
Fair value per share

Common Stock Issued in Spring 2019 Public Offering

  $
  $

Pre-reset

Post-reset

  $
  $

1.17 
1.82 
2.09%  
4.73 
97.8%  
0.0%  

1.17 
0.001 
2.09%
4.73 
97.8%
0.0%

  $

503,641 
0.77 

  $

503,641 
1.17 

During the quarter ended March 31, 2019, we completed an underwritten public offering of 11,500,000 shares of our common stock, including the overallotment option, at a
public  offering  price  of  $1.00  per  share,  resulting  in  gross  proceeds  to  us  of  $11,500,000,  pursuant  to  our  shelf  registration  statement  on  Form  S-3  (File  No.  333-215671),
previously filed with the Commission (the Spring 2019 Public Offering). We received net proceeds of approximately $10.4 million after deducting underwriter’s commission
and offering expenses.

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Common Stock and Warrants Issued in Private Placements in our Fiscal Year Ended March 31, 2018

During the quarter ended June 30, 2017, in self-placed private placement transactions, we accepted subscription agreements from individual accredited investors, pursuant to
which we sold to such investors units, at a weighted average purchase price of $2.00 per unit, consisting of an aggregate of 437,751 unregistered shares of our common stock
and warrants, exercisable through April 30, 2021, to purchase an aggregate of 218,875 unregistered shares of our common stock at a weighted average exercise price of $3.99
per share. The purchasers of the units have no registration rights with respect to the shares of common stock, warrants or the shares of common stock issuable upon exercise of
the warrants comprising the units sold. The warrants are not exercisable until six months and one day following the date of issuance. We received aggregate cash proceeds of
$873,300 in connection with these self-placed private placement transactions, and the entire amount of the proceeds was credited to stockholders’ equity.

During  the  quarter  ended  September  30,  2017,  in  a  self-placed  private  placement  transaction,  we  sold  to  an  accredited  investor  units  consisting  of  28,572  shares  of  our
unregistered common stock  and  warrants  exercisable  through April  30,  2021  to  purchase  28,572  unregistered  shares  of  our  common  stock  at  an  exercise  price  of  $4.00  per
share. The purchaser of the units has no registration rights with respect to the shares of common stock, warrants or the shares of common stock issuable upon exercise of the
warrants comprising the units sold. The warrants are not exercisable until six months and one day following the date of issuance. We received cash proceeds of $50,000 from
this sale of our securities, and the entire amount of the proceeds was credited to stockholders’ equity.

During  the  quarter  ended  December  31,  2017,  in  a  self-placed  private  placement  transaction,  we  sold  to  an  accredited  investor  units  consisting  of  150,000  shares  of  our
unregistered common stock and warrants exercisable through November 30, 2021 to purchase 150,000 unregistered shares of our common stock at an exercise price of $2.00
per share. The purchaser of the units has no registration rights with respect to the shares of common stock, warrants or the shares of common stock issuable upon exercise of the
warrants comprising the units sold. The warrants are not exercisable until six months and one day following the date of issuance. We received cash proceeds of $150,000 from
this sale of our securities, and the entire amount of the proceeds was credited to stockholders’ equity.

Common Stock and Warrants Issued in Summer 2018 Private Placement

Between June 2018 and October 2018, we completed a self-placed private placement with accredited investors, pursuant to which we sold units, at a purchase price of $1.25 per
unit, consisting of 4,605,000 unregistered shares of our common stock and warrants, exercisable through February 28, 2022, to purchase 4,605,000 unregistered shares of our
common stock at an exercise price of $1.50 per share (the Summer 2018 Private Placement). The purchasers of the units have no registration rights with respect to the shares of
common stock, warrants or the shares of common stock issuable upon exercise of the warrants comprising the units sold. The warrants are not exercisable until at least six
months and one day following the date of issuance. We received aggregate cash proceeds of $5,756,200 in connection with the Summer 2018 Private Placement and the entire
amount of the proceeds was credited to stockholders’ equity.

Common Stock and Warrants Issued in Fall 2018 Private Placement

The  Summer  2018  Private  Placement  was  oversubscribed.  To  accommodate  additional  investor  interest,  during  October  2018,  we  accepted  subscription  agreements  from
accredited investors, pursuant to which we sold to such investors units, at a unit purchase price equal to $0.15 above the closing quoted market price of our common stock on the
Nasdaq Capital Market on the effective date of the investor’s subscription agreement, consisting of an aggregate of 420,939 unregistered shares of our common stock and four-
year, immediately exercisable warrants to purchase 420,939 unregistered shares of our common stock at a per share exercise price equal to the closing quoted market price of
our common stock on the Nasdaq Capital Market on the effective date of the investor’s subscription agreement (the Fall 2018 Private Placement). The purchasers of the units
have no registration rights with respect to the shares of common stock, warrants or the shares of common stock issuable upon exercise of the warrants comprising the units sold.
We received aggregate cash proceeds of $812,500 in connection with the Fall 2018 Private Placement and settled an outstanding professional service payable by accepting a
subscription agreement in the amount of $40,000 and issuing the corresponding number of shares of common stock and warrants. The entire amount of the proceeds of the Fall
2018 Private Placement was credited to stockholders’ equity. The fair value of the common stock and warrant issued in the Fall 2018 Private Placement in settlement of the
professional services payable was determined to be $62,700 on the effective date of the agreement. Accordingly, we recognized a loss on extinguishment of accounts payable in
the amount of $22,700 in our Consolidated Statement of Operations and Comprehensive Loss for the fiscal year ended March 31, 2019.

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Modification of Warrants issued in Summer 2018 Private Placement

Subsequent  to  the  completion  of  the  Summer  2018  Private  Placement,  we  amended  warrants  to  purchase  an  aggregate  of  304,000  shares  of  our  common  stock  issued  to
investors who submitted Summer 2018 Private Placement subscription agreements between October 3, 2018 and October 5, 2018 to increase the exercise price of their warrants
from $1.50 per share to $1.59 per share or $1.69 per share, depending on the effective date of the related subscription agreement, to comply with certain provisions of The
Nasdaq Stock Market Rules applicable to the private placement. As additional consideration for agreeing to the increase in the warrant exercise price, we granted the investors
additional  warrants  to  purchase  an  aggregate  of  23,800  unregistered  shares  of  our  common  stock  at  an  exercise  price  of  $1.75  per  share  through  February  28,  2022. We
calculated the fair value of the modified warrants immediately before and after the modification using the Black Scholes Option Pricing Model and determined that the increase
in the exercise price resulted in a decrease in the fair value of the warrants, which decrease is not recognized. We calculated the fair value of the new warrants using the Black-
Scholes Option Pricing Model and the weighted average assumptions indicated in the table below, recognizing $25,800 as the fair value of the new warrants and as warrant
modification expense, included as a component of general and administrative expenses, in our Consolidated Statement of Operations and Comprehensive Loss for the fiscal year
ended March 31, 2019.

Assumption:
Market price per share
Exercise price per share
Risk-free interest rate
Remaining contractual term in years
Volatility
Dividend rate

Number of warrant shares
Weighted average fair value per share

Issuance of Common Stock for Product Licenses and Option

  New Warrants  
1.80 
  $
1.75 
  $
2.83%
3.25 
88.80%
0.0%

  $

23,800 
1.08 

As indicated in Note 1, Description of Business, and Note 3, Summary of Significant Accounting Policies, in September 2018 we issued an aggregate of 1,630,435 shares of our
unregistered common stock having a fair market value of $2,250,000, based on the $1.38 per share quoted closing market price of our common stock on the Nasdaq Capital
Market, to Pherin to acquire an exclusive worldwide license to develop and commercialize PH94B and an option to acquire a similar license for PH10. In October 2018, we
exercised our option to acquire an exclusive worldwide license to develop and commercialize PH10 by issuing 925,926 shares of our unregistered common stock having a fair
market value of $2,000,000, based on the $2.16 per share closing quoted market price of our common stock on the Nasdaq Capital Market, to Pherin under the terms of the
PH10 license agreement. Under the terms of the PH94B and PH10 license agreements, we are obligated to make additional cash payments and pay royalties to Pherin in the
event that certain regulatory and performance-based milestones and commercial sales are achieved. Additionally, in connection with the license agreements, we are obligated to
pay to Pherin monthly support payments of $10,000 for a term of the earlier of 18 months or the termination of the license agreement, however no monthly support payment is
required under the 18-month period identified in the PH10 license agreement if support payments are being made under the terms of the PH94B license agreement.

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Issuance of Common Stock and Warrants to Professional Services Providers and in Settlement of Accounts Payable

During our fiscal years ended March 31, 2018 and 2019, we issued the following securities in private placement transactions as compensation for various professional services.
Unless  otherwise  noted,  we  recorded  the  related  noncash  expense  as  a  component  of  general  and  administrative  expense  in  the  Consolidated  Statement  of  Operations  and
Comprehensive Loss for the fiscal years ended March 31, 2018 and 2019, as appropriate.

● During the quarter ended September 30, 2017, we issued an aggregate of 927,500 unregistered shares of our common stock, of which 477,500 shares were issued from
our 2016 Plan, for various professional services, including contract research, legal, investor relations and financial advisory services. The common stock issued had an
aggregate fair value of $1,503,600 on the dates issued, of which all but $117,300 has been recognized as noncash expense through March 31, 2018. The un-expensed
portion at March 31, 2018, which is included in prepaid expenses in our accompanying Consolidated Balance Sheet, is being recognized in expense ratably through July
2019 in accordance with the terms of work orders for certain contract research services to be provided through that period.

● During the quarter ended December 31, 2017, we issued an aggregate of 70,000 unregistered shares of our common stock, all of which were issued from our Amended
and  Restated  2016  Stock  Incentive  Plan  for  additional  investor  relations  and  financial  advisory  services.  The  common  stock  issued  had  an  aggregate  fair  value  of
$140,800 on the dates issued.

● During the quarter ended December 31, 2017, we also issued 500,000 unregistered shares of our common stock having a fair value at the time of issuance of $585,000
and a cash payment of $76,500 to our contract manufacturing organization (CMO) in exchange for and settlement of $526,500 of open accounts payable for services
provided  by  the  CMO  relating  to  production  of AV-101  drug  substance.  We  recognized  a  corresponding  loss  on  settlement  of  accounts  payable  in  the  amount  of
$135,000 in the Consolidated Statement of Operations and Comprehensive Loss for the fiscal year ended March 31, 2018.

● During the quarter ended March 31, 2018, we issued 30,000 unregistered shares of our common stock to a provider of investor relations and financial advisory services.

The common stock issued had an aggregate fair value of $39,000 on the date issued.

● During the quarter ended June 30, 2018, we issued an aggregate of 100,000 unregistered shares of our common stock having a fair value on the dates of issuance of

$123,000 as full or partial compensation to an investor relations service provider and under a financial advisory agreement.

● During the quarter ended September 30, 2018, we issued 50,000 shares of our unregistered common stock having a fair value on the date of issuance of $68,000 as

partial compensation to a corporate awareness service provider.

● During the quarter ended September 30, 2018, we also issued four-year warrants to three service providers to purchase an aggregate of 288,000 unregistered shares of
our common stock at an exercise price of $1.50 per share as full or partial compensation for investor relations and corporate awareness services. We valued the warrants
at an aggregate fair value of $266,900 using the Black-Scholes Option Pricing Model and the following grant date weighted average assumptions: exercise price per
share: $1.50; market price per share: $1.40; risk-free interest rate: 2.71%; contractual term: 4 years; volatility: 94.17%; dividend rate: 0%; deriving a value per warrant
share of $0.93. The fair value of the common stock and warrants is being recognized in expense ratably over the term of the underlying contracts.

● During the quarter ended March 31, 2019, we issued 25,000 registered shares of our common stock having a fair value of $41,500 on the date of issuance from our
Amended and Restated 2016 Stock Incentive Plan to an investor relations and social media service provider. The fair value of the common stock is being recognized in
expense ratably over the term of the underlying contract.

Stock Option Exercises

During the quarter ended March 31, 2019, our Chief Executive Officer and Chief Scientific Officer and a member of our Board exercised outstanding stock options to purchase
an aggregate of 29,250 shares of our common stock and we received cash proceeds of $43,900.

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Warrant Modifications

In addition to the Summer 2018 Private Placement warrants modified during our fiscal year ended March 31, 2019, we modified other outstanding warrants during our fiscal
year ended March 31, 2018.

During the quarter ended September 30, 2017, the Board authorized the modification of outstanding warrants issued in private placement transactions between March 2017 and
June 2017 to reduce the exercise prices and increase the number of shares issuable thereunder. We calculated the fair value of the warrant immediately before and after the
modification  using  the  Black-Scholes  Option  Pricing  Model  and  the  weighted  average  assumptions  indicated  in  the  table  below.  We  recognized  the  incremental  fair  value,
$279,700, as warrant modification expense, included as a component of general and administrative expenses, in our Consolidated Statement of Operations and Comprehensive
Loss for the fiscal year ended March 31, 2018.

Assumption:
Market price per share
Exercise price per share
Risk-free interest rate
Remaining contractual term in years
Volatility
Dividend rate

Number of warrant shares
Weighted average fair value per share

  $
  $

Pre-
modification  
1.54 
3.99 
1.62%  
3.62 
95.5%  
0.0%  

  $
  $

Post-
modification  
1.54 
2.00 
1.62%
3.62 
95.5%
0.0%

  $

247,500 
0.71 

  $

495,001 
0.92 

During the quarter ended December 31, 2017, the Board authorized the modification of outstanding warrants issued in private placement transactions between August 2017 and
November 2017 to reduce the exercise prices of the warrants. We calculated the fair value of the warrants immediately before and after the modification using the Black Scholes
Option Pricing Model and the weighted average assumptions indicated in the table below. We recognized the incremental fair value, $13,000, as warrant modification expense,
included as a component of general and administrative expenses, in our Consolidated Statement of Operations and Comprehensive Loss for the fiscal year ended March 31,
2018.

Assumption:
Market price per share
Exercise price per share
Risk-free interest rate
Remaining contractual term in years
Volatility
Dividend rate

Number of warrant shares
Weighted average fair value per share

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  $
  $

Pre-
modification  
1.14 
2.32 
2.12%  
3.85 
98.7%  
0.0%  

  $
  $

Post-
modification  
1.14 
1.58 
2.12%
3.85 
98.7%
0.0%

  $

178,572 
0.64 

  $

178,572 
0.71 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
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Warrants Outstanding

The following table summarizes outstanding and exercisable warrants to purchase shares of our common stock as of March 31, 2019.  The weighted average exercise price of
outstanding and exercisable warrants at March 31, 2019 was $2.53 per share and $2.57 per share, respectively.

Exercise Price
per Share

  Expiration
Date

Warrants Outstanding at
March 31, 2019

Warrants Exercisable at
March 31, 2019

14,335,200 
292,000 
12,000 
182,434 
23,800 
115,385 
1,388,931 
523,573 
106,383 
16,737 
50,000 
25,000 
2,705,883 
97,750 
1,262,878 
185,000 
20,000 
110,448 
21,453,402 

$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$

1.50 
1.59 
1.69 
1.70 
1.75 
1.80 
1.82 
2.00 
2.20 
2.24 
3.51 
4.50 
5.30 
6.00 
7.00 
8.00 
10.00 
20.00 

11/30/2021 to 12/13/2022
2/28/2022
2/28/2022
10/5/2022
2/28/2022
10/10/2022
3/7/2023
4/30/2021
10/19/2022
10/16/2022
12/31/2021
9/26/2019
5/16/2021
9/26/2019 to 11/30/2019
1/11/2020 to 3/3/2023
3/25/2021
1/11/2020
9/15/2019

Reserved Shares

At March 31, 2019, we have reserved shares of our common stock for future issuance as follows:

Upon exchange of all shares of Series A Preferred currently issued and outstanding (1)
Upon exchange of all shares of Series B Preferred currently issued and outstanding (2)
Upon exchange of all shares of Series C Preferred currently issued and outstanding (3)
Pursuant to warrants to purchase common stock:
    Subject to outstanding warrants
Pursuant to stock incentive plan:
    Subject to outstanding options under the Amended and Restated 2016 Stock Incentive  Plan

    Available for future grants under the Amended and Restated 2016 Stock Incentive Plan

13,857,200 
- 
- 
182,434 
- 
115,385 
1,388,931 
523,573 
106,383 
16,737 
50,000 
25,000 
2,705,883 
97,750 
1,262,878 
185,000 
20,000 
110,448 
20,647,602 

750,000 
5,096,738 
2,318,012 

21,453,402 

6,626,088 
2,607,162 

Total
____________
(1) Assumes exchange under the terms of the October 11, 2012 Note Exchange and Purchase Agreement
(2) Assumes exchange under the terms of the Certificate of Designation of the Relative Rights and Preferences of the Series B 10% Convertible Preferred Stock, effective May
5, 2015; includes 3,936,498 shares of common stock issuable in payment of dividends on Series B Preferred upon conversion
(3) Assumes exchange under the terms of the Certificate of Designation of the Relative Rights and Preferences of the Series C Convertible Preferred Stock, effective January
25, 2016

9,233,250 
38,851,402 

At March 31, 2019, we have 18,525,633 authorized shares of our common stock not subject to reserves and available for future issuance.

10.  Research and Development Expenses

We  recorded  research  and  development  expenses  of  approximately  $17.1  million  (including  approximately  $5.6  million  of  non-cash  expense)  and  $7.8  million  in  the  fiscal
years  ended  March  31,  2019  and  2018,  respectively.  Research  and  development  expense  is  composed  of  employee  compensation  expenses,  including  stock–based
compensation, direct project expenses, notably including costs attributable to our AV-101 ELEVATE clinical trial and other preclinical and nonclinical projects, and costs to
maintain and prosecute our intellectual property suite, including new patent applications for AV-101 for various indications. As indicated in Note 9,  Capital Stock, research and
development expense for the fiscal year ended March 31, 2019 also includes non-cash expense of $4.25 million attributable to the acquisition of the PH94B and PH10 licenses
and the PH10 option.

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11.  Income Taxes

The provision for income taxes for the periods presented in the Consolidated Statements of Operations and Comprehensive Loss represents minimum California franchise tax
and North Carolina income tax.

On December 22, 2017, the Tax Cuts and Jobs Act (the  Tax Act) was enacted into law, significantly changing the fundamentals of U.S. corporate income taxation by, among
many  other  things,  reducing  the  U.S.  federal  corporate  income  tax  rate  to  21%,  converting  to  a  territorial  tax  system,  and  creating  various  income  inclusion  and  expense
limitation provisions. The reduction of the U.S. federal statutory tax rate from 34% to 21% became effective January 1, 2018. Income tax expense for the fiscal year ended
March 31, 2018 was computed by applying the U.S. federal income tax rate of 34% for April 1, 2017 to December 31, 2017 and 21% for January 1, 2018 to March 31, 2018
(prorated basis 30.75%) to pretax losses. Income tax expense differed from the amounts computed by applying the U.S. federal income tax rate of 21% and the prorated rate of
30.75% for the fiscal years ended March 31, 2019 and 2018, respectively, to pretax losses as a result of the following:

Computed expected tax benefit
Tax effect of warrant modifications and other non-deductible items
Tax effect of research and development credits
Effect of U.S. tax law change (federal and state)
Other losses not benefitted
Other
Income tax expense

Fiscal Years Ended March 31,

2019

2018

(21.00)% 
0.74%  
(1.92)% 
-%  
22.19%  
-%  
0.01%  

(30.75)%
0.40%
(1.44)%
88.09%
(56.28)%
-%
0.02%

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

Deferred tax assets:

Net operating loss carryovers
Basis differences in fixed assets
Stock based compensation
Accruals and reserves

Total deferred tax assets
Valuation allowance
Net deferred tax assets

March 31,

2019

2018

  $

  $

27,190,900 
(2,700)
3,516,600 
2,047,500 
32,752,300 
(32,752,300)
- 

  $

  $

21,402,600 
(7,600)
2,504,500 
1,352,900 
25,252,400 
(25,252,400)
- 

Realization of deferred tax assets is dependent upon future earnings, if any, the timing and amount of which are uncertain. Accordingly, the deferred tax assets have been fully
offset  by  a  valuation  allowance.  The  valuation  allowance  increased  by $7,499,900  and  decreased  by  $9,529,300  during  the  fiscal  years  ended  March  31,  2019  and  2018,
respectively.

At March 31, 2019 we had U.S. federal net operating loss carryforwards of approximately $109,032,500, which will expire in fiscal years 2020 through 2038.  At March 31,
2019, we had state net operating loss carryforwards of approximately $63,574,300, which will expire in fiscal years 2029 through 2039. Federal net operating losses incurred in
our  fiscal  year  ended  March  31,  2019  and  thereafter  will  not  expire.  We  also  have  federal  and  state  research  and  development  tax  credit  carryforwards  of  approximately
$1,624,700 and $1,049,500, respectively. The federal tax credits will expire at various dates beginning in the year 2029, unless previously utilized. The state tax credits do not
expire and will carry forward indefinitely until utilized.

On December 22, 2017, the SEC staff issued Staff Accounting Bulletin No. 118 (SAB 118) to provide guidance for companies that are not able to complete their accounting for
the  income  tax  effects  of  the  Tax Act  in  the  period  of  enactment.  SAB  118  provides  for  a  measurement  period  of  up  to  one  year  from  the  date  of  enactment.  During  the
measurement period, companies need to reflect adjustments to any provisional amounts if it obtains, prepares or analyzes additional information about facts and circumstances
that existed as of the enactment date that, if known, would have affected the income tax effects initially reported as provisional amounts.

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At March 31, 2019 we have completed our analysis of the Tax Act. The Act required us to re-measure our net U.S. deferred tax assets reducing the U.S. federal corporate rate to
21%, which was offset by our valuation allowance. During our fiscal year ended March 31, 2019, this amount was finalized and no additional adjustment was required to be
made due to the change in corporate tax rate.

Also effective for our fiscal  year  ended  March  31,  2019  is  a  new  Global  Intangible  Low-Taxed  Income  inclusion  (GILTI).  The  GILTI  income  inclusion  did  not  impact  our
current loss and valuation allowance as our Canadian subsidiary is an inactive entity. The Company has elected to account for GILTI as a period cost in the year the income or
tax is incurred.

U.S. federal and state tax laws include substantial restrictions on the utilization of net operating loss carryforwards in the event of an ownership change of a corporation. We
have not performed a change in ownership analysis since our inception in 1998 and accordingly some or all of our net operating loss carryforwards may not be available to
offset future taxable income, if any.

We file income tax returns in the U.S. federal, Canada and various U.S. state jurisdictions. We are subject to U.S. federal and state income tax examinations by tax authorities
for tax years 1998 through 2018 due to net operating losses that are being carried forward for tax purposes, but we are not currently under examination by tax authorities in any
jurisdiction.

Uncertain Tax Positions

Our unrecognized tax benefits at March 31, 2019 and 2018 relate entirely to research and development tax credits. The total amount of unrecognized tax benefits at March 31,
2019  and  2018  is  $668,700  and  $451,600,  respectively.  If  recognized,  none  of  the  unrecognized  tax  benefits  would  impact  our  effective  tax  rate.  The  following  table
summarizes the activity related to our unrecognized tax benefits.

Unrecognized benefit - beginning of period
Current period tax position increases
Prior period tax position increases
Unrecognized benefit - end of period

Fiscal Years Ended March 31,

2019

2018

  $

  $

451,600 
210,100 
7,000 
668,700 

  $

  $

290,500 
102,300 
58,800 
451,600 

Our policy is to recognize interest and penalties related to income taxes as components of interest expense and other expense, respectively. We incurred no interest or penalties
related  to  unrecognized  tax  benefits  in  the  years  ended  March  31,  2019  or  2018.  We  do  not  anticipate  any  significant  changes  of  our  uncertain  tax  positions  within  twelve
months of this reporting date.

12.  Licensing, Sublicensing and Collaborative Agreements

License Agreements with Pherin Pharmaceuticals, Inc. (Pherin)

In September 2018 we issued an aggregate of 1,630,435 shares of our unregistered common stock having a fair market value of $2,250,000 to Pherin to acquire an exclusive
worldwide license to develop and commercialize PH94B for social anxiety disorder and an option to acquire a similar license for PH10 for MDD. In October 2018, we exercised
our option to acquire an exclusive worldwide license to develop and commercialize PH10 by issuing 925,926 shares of our unregistered common stock having a fair market
value of $2,000,000 to Pherin under the terms of the PH10 license agreement. Under the terms of the PH94B and PH10 license agreements, we are obligated to make additional
cash payments and pay royalties to Pherin in the event that certain regulatory and performance-based milestones and commercial sales are achieved. Additionally, in connection
with the license agreements, we are obligated to pay to Pherin monthly support payments of $10,000 for a term of the earlier of 18 months or the termination of the license
agreement, however no monthly support payment is required under the 18-month period identified in the PH10 license agreement if support payments are being made under the
terms of the PH94B license agreement.

BlueRock Therapeutics Sublicense Agreement

In December 2016, we entered into an Exclusive License and Sublicense Agreement (BlueRock Agreement) with BlueRock Therapeutics, LP, a next generation regenerative
medicine company established in December 2016 by Bayer AG and Versant Ventures ( BlueRock Therapeutics), pursuant to which BlueRock Therapeutics received exclusive
rights  to  utilize  certain  technologies  exclusively  licensed  by  us  from  University  Health  Network  (UHN)  for  the  production  of  cardiac  stem  cells  for  the  treatment  of  heart
disease.  We  retained  rights  to  cardiac  stem  cell  technology  licensed  from  UHN  related  to  small  molecule,  protein  and  antibody  drug  discovery,  drug  rescue  and  drug
development, including small molecules with cardiac regenerative potential, as well as small molecule, protein and antibody testing involving cardiac cells. To date, we have
recognized $1.25 million in sublicense revenue, in our fiscal year ended March 31, 2017, under the BlueRock Agreement.

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Cato Research Ltd.

We have built a long-term strategic development relationship with Cato Research Ltd. ( CRL), a global contract research and development organization, or CRO, and an affiliate
of one of our largest institutional stockholders. CRL has provided us with access to essential CRO services and regulatory expertise supporting our AV-101 preclinical and
clinical development programs, including our ELEVATE Study, and other projects, including projects related to PH94B and PH10.  We recorded research and development
expenses for CRO services provided by CRL in the amounts of $3,969,100 and $1,390,700 for the fiscal years ended March 31, 2019 and 2018, respectively. 

13.  Stock Option Plans and 401(k) Plan

At March 31, 2019, we have the following share-based compensation plan.

Amended and Restated 2016 Stock Incentive Plan

Our Board unanimously approved the Company’s Amended and Restated 2016 Stock Incentive Plan, formerly titled the 2008 Stock Incentive Plan (the 2016 Plan), on July 26,
2016,  and  the  2016  Plan  was  approved  by  our  stockholders  at  our  2016 Annual  Meeting  of  Stockholders  on  September  26,  2016,  and  further  amended  at  our  2017 Annual
Meeting  of  Stockholders  on  September  15,  2017.  The  2016  Plan  provides  for  the  grant  of  stock  options,  restricted  shares  of  common  stock,  stock  appreciation  rights  and
dividend equivalent rights, collectively referred to as “Awards”. Stock options granted under the 2016 Plan may be either incentive stock options under the provisions of Section
422 of the Internal Revenue Code of 1986, as amended (the Code), or non-qualified stock options. We may grant incentive stock options only to employees of the Company or
any parent or subsidiary of the Company. Awards other than incentive stock options may be granted to employees, directors and consultants. A total of 10.0 million shares of
our  common  stock  were  initially  authorized  for  issuance  under  the  2016  Plan,  of  which  approximately  9.2  million  shares  remain  authorized  and  approximately  2.6  million
registered shares remain available for future equity grants under the plan at March 31, 2019.

Description of the 2016 Plan

The 2016 Plan provides for the grant of stock options, restricted shares of common stock, stock appreciation rights and dividend equivalent rights, collectively referred to as
“Awards”. Stock options granted under the 2016 Plan may be either incentive stock options under the provisions of Section 422 of the Code, or non-qualified stock options. We
may grant incentive stock options only to employees of the Company or any parent or subsidiary of the Company. Awards other than incentive stock options may be granted to
employees, directors and consultants.

The Compensation Committee of the Board of Directors (the Committee), administers the 2016 Plan, including selecting the Award recipients, determining the number of shares
to be subject to each Award, the exercise or purchase price of each Award and the vesting and exercise periods of each Award.

The exercise price of all incentive stock options granted under the 2016 Plan must be at least equal to 100% of the fair market value of the shares on the date of grant. The
maximum term of an incentive stock option granted to any other participant may not exceed 10 years. The Committee determines the term and exercise or purchase price of all
other Awards granted under the 2016 Plan.

Under the 2016 Plan, incentive stock options may not be sold, pledged, assigned, hypothecated, transferred or disposed of in any manner other than by will or by the laws of
descent or distribution and may be exercised, during the lifetime of the participant, only by the participant. Other Awards shall be transferable:

●
●

by will and by the laws of descent and distribution; and
during the lifetime of the participant, to the extent and in the manner authorized by the Committee by gift or pursuant to a domestic relations order to members of the
participant’s Immediate Family (as defined in the 2016 Plan).

The  maximum  number  of  shares  with  respect  to  which  options  and  stock  appreciation  rights  may  be  granted  to  any  participant  in  any  calendar  year  is  300,000  shares  of
common stock. In connection with a participant’s commencement of service with the Company, a participant may be granted options and/or stock appreciation rights for up to
an  additional  50,000  shares  that  will  not  count  against  the  foregoing  limitation.  In  addition,  for Awards  of  restricted  stock  and  restricted  shares  of  common  stock  that  are
intended to be “performance-based compensation” (within the meaning of Section 162(m) of the Code), the maximum number of shares with respect to which such Awards
may be granted to any participant in any calendar year is 300,000 shares of common stock. The limits described in this paragraph are subject to adjustment in the event of any
change in our capital structure as described below.

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The terms and conditions of Awards are determined by the Committee, including the vesting schedule and any forfeiture provisions. Awards under the 2016 Plan may vest upon
the  passage  of  time  or  upon  the  attainment  of  certain  performance  criteria. Although  we  do  not  currently  have  any Awards  outstanding  that  vest  upon  the  attainment  of
performance criteria, the Committee may establish criteria based on any one of, or a combination of, a number of financial measurements. 

Effective upon the consummation of a Corporate Transaction (as defined below), all outstanding Awards under the 2016 Plan will terminate unless the acquirer assumes or
replaces  such Awards.  The  Committee  has  the  authority,  exercisable  either  in  advance  of  any  actual  or  anticipated  Corporate  Transaction  or  Change  in  Control  (as  defined
below) or at the time of an actual Corporate Transaction or Change in Control and exercisable at the time of the grant of an Award under the 2016 Plan or any time while an
Award remains outstanding, to provide for the full or partial automatic vesting and exercisability of one or more outstanding unvested Awards under the 2016 Plan and the
release from restrictions on transfer and repurchase or forfeiture rights of such Awards in connection with a Corporate Transaction or Change in Control, on such terms and
conditions as the Committee may specify. The Committee also has the authority to condition any such Award vesting and exercisability or release from such limitations upon
the subsequent termination of the service of the grantee within a specified period following the effective date of the Corporate Transaction or Change in Control. The Committee
may provide that any Awards so vested or released from such limitations in connection with a Change in Control, shall remain fully exercisable until the expiration or earlier
termination of the Award.

Under the 2016 Plan, a Corporate Transaction is generally defined as:

●

●

●

●
●

an acquisition of securities possessing more than fifty percent (50%) of the total combined voting power of our outstanding securities but excluding any such transaction or
series of related transactions that the Committee determines shall not be a Corporate Transaction;
a reverse merger in which we remain the surviving entity but: (i) the shares of common stock outstanding immediately prior to such merger are converted or exchanged by
virtue of the merger into other property, whether in the form of securities, cash or otherwise; or (ii) in which securities possessing more than fifty percent (50%) of the total
combined voting power of our outstanding securities are transferred to a person or persons different from those who held such securities immediately prior to such merger;
a  sale,  transfer  or  other  disposition  of  all  or  substantially  all  of  the  assets  of  the
Company;
a merger or consolidation in which the Company is not the surviving entity; or
a 
dissolution.

liquidation 

complete 

or

Under the 2016 Plan, a Change in Control is generally defined as: (i) the acquisition of more than 50% of the total combined voting power of our stock by any individual or
entity which a majority of our Board (who have served on our board for at least 12 months) do not recommend our stockholders accept; (ii) or a change in the composition of
our Board over a period of 12 months or less.

Unless terminated sooner, the 2016 Plan will automatically terminate in 2026. Our Board may at any time amend, suspend or terminate the 2016 Plan. To the extent necessary to
comply with applicable provisions of U.S. federal securities laws, state corporate and securities laws, the Code, the rules of any applicable stock exchange or national market
system, and the rules of any non-U.S. jurisdiction applicable to Awards granted to residents therein, we will obtain stockholder approval of any such amendment to the 2016
Plan in such a manner and to such a degree as required.

During our fiscal year ended March 31, 2019, we granted from the 2016 Plan:

●

●

●

●

●

options to purchase an aggregate of 860,000 shares of our common stock at an exercise price of $1.27 per share to the independent members of our Board, to all of our
officers except our Chief Executive Officer, and to all non-officer employees in August 2018;
options to purchase an aggregate of 250,000 shares of our common stock at exercise prices ranging from $1.52 per share to $2.20 per share to various scientific, legal,
investor relations, and financial and strategic advisory consultants in October 2018;
an option to purchase 25,000 shares of our common stock at an exercise price of $1.74 per share to a new independent member of our Board in January
2019;
an option to purchase 220,000 shares of our common stock at an exercise price of $1.70 per share to our Chief Executive Officer in January 2019;
and
25,000 shares of registered common stock having a fair value of $41,500 on the date of grant to an investor relations and social media consultant. Noncash expense related
to this grant is being amortized ratably over the contractual period as a component of general and administrative expense not included in stock compensation expense.

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During our fiscal year ended March 31, 2018, we granted from the 2016 Plan:

●

●

●

●

●

options to purchase an aggregate of 880,000 shares of our common  stock  at  an  exercise  price  of  $1.96  per  share  to  the  independent  members  of  our  Board  and  to  our
officers and all non-officer employees in April 2017;
options to purchase an aggregate of 770,000 shares of our common stock at an exercise price of $1.56 per share to the independent members of our Board, officers, non-
officer employees and two consultants in September 2017;
options to purchase an aggregate of 2,000,000 shares of our common stock at an exercise price of $1.16 per share to the independent members of our Board, officers, non-
officer employees and ten consultants in February 2018;
options to purchase 25,000 shares of our common stock at an exercise price of $1.21 per share to a legal services consultant in February 2018;
and
an  aggregate  of  547,500  shares  of  unregistered  common  stock  to  various  legal,  investor  relations,  and  financial  and  strategic  advisory  consultants  in  September  and
October  2017  pursuant  to  which  we  recognized  an  aggregate  of  $827,900  as  a  noncash  component  of  general  and  administrative  expense  not  included  in  stock
compensation expense for the fiscal year.

The following table summarizes stock-based compensation expense related to option grants to our officers, independent directors, consultants and service providers, included in
the accompanying Consolidated Statement of Operations and Comprehensive Loss for the years ended March 31, 2019 and 2018.

 Research and development expense:

 Stock option grants

 General and administrative expense:

 Stock option grants

 Total stock-based compensation expense

 Fiscal Years Ended March 31,

 2019

 2018

  $

  $

1,259,400 
1,259,400 
2,184,000 
2,184,000 
3,443,400 

  $

  $

969,200 
969,200 
1,375,000 
1,375,000 
2,344,200 

We used the Black-Scholes Option Pricing model with the following weighted average assumptions to determine share-based compensation expense related to option grants
during the fiscal years ended March 31, 2019 and 2018:

Exercise price
Market price on date of grant
Risk-free interest rate
Expected term (years)
Volatility
Expected dividend yield

Fair value per share at grant date

Fiscal Years Ended March 31,

 2019
(weighted
average)

 2018
(weighted
average)

  $
  $

  $
  $

1.45 
1.45 
2.84%  
6.32 
96.58%  
0.00%  

1.44 
1.44 
2.39%
6.87 
90.40%
0.00%

  $

1.15 

  $

1.10 

The expected term of options represents the period that our share-based compensation awards are expected to be outstanding. We have calculated the weighted-average expected
term of the options using the simplified method as prescribed by Securities and Exchange Commission Staff Accounting Bulletins No. 107 and No. 110 (SAB No. 107 and 110).
The utilization of SAB No. 107 and 110 is based on the lack of relevant historical option exercises and relevant historical data due to our limited experience as a publicly traded
company and the historical lack of liquidity in freely-tradable shares of our common stock. Those factors also resulted in our decision to utilize the historical volatilities of a
peer group of public companies’ stock over the expected term of the option in determining our expected volatility assumptions.  The risk-free interest rate for periods related to
the expected life of the options is based on the U.S. Treasury yield curve in effect at the time of grant. The expected dividend yield is zero, as we have not paid any dividends
and do not anticipate paying dividends in the near future. We recognize the effect of forfeitures as they occur.

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Table of Contents

The following table summarizes activity for the fiscal years ended March 31, 2019 and 2018 under the 2016 Plan:

 Options outstanding at beginning of period

 Options granted
 Options exercised
 Options forfeited
 Options expired

 Options outstanding at end of period
 Options exercisable at end of period
 Weighted average grant-date fair value of
 options granted during the period

 Fiscal Years Ended March 31,

 2019

 2018

  Number of
Shares

Weighted
Average
Exercise
Price

  Number of
Shares

Weighted
Average
Exercise
Price

5,300,338 
1,355,000 
(29,250)
- 
- 
6,626,088 

4,303,972 

  $
  $
  $
  $
  $
  $
  $

  $

2.43 
1.45 
1.50 
- 
- 
1.48 
1.53 

1.15 

1,659,324 
3,675,000 
- 
(12,154)
(21,832)
5,300,338 

1,818,962 

  $
  $
  $
  $
  $
  $

  $

  $

4.76 
1.44 
- 
5.39 
9.42 
2.43 

3.31 

1.10 

In August 2018, in accordance with the terms of the 2016 Plan, the Board approved the modification of outstanding options held by independent members of our Board, our
officers and our employees that had exercise prices higher than $1.56 per share to reduce the exercise prices thereof to $1.50 per share. We calculated the fair value of such
options immediately before and after the modification using the Black-Scholes Option Pricing Model and the weighted average assumptions indicated in the table below. We
immediately recognized the additional fair value attributable to vested options, $258,100, as stock compensation expense, which is included in the expense reported above. The
additional fair value resulting from the modification, approximately $142,200, is being expensed over the remaining vesting period of the modified options.

Assumption:
Market price per share
Exercise price per share
Risk-free interest rate
Remaining expected term in years
Volatility
Dividend rate

Number of option shares
Weighted average fair value per share

-109-

  $
  $

Pre-
modification  
1.49 
3.57 
2.77%  
5.08 
94.9%  
0.0%  

  $
  $

Post-
modification  
1.49 
1.50 
2.77%
5.08 
94.9%
0.0%

2,419,503 
0.91 

  $

2,419,503 
1.08 

  $

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
Table of Contents

VISTAGEN THERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following table summarizes information on stock options outstanding and exercisable under the 2016 Plan as of March 31, 2019, including the results of the exercise price
modification noted above:

 Exercise
  Price 

 Number
 Outstanding

  $
  $
  $
  $
  $
  $

1.16 
1.21 to $1.27 
1.50 
1.52 to $1.99 
2.20 to $3.80 
8.00 to $15.00 

2,000,000 
885,000 
2,390,253 
1,215,000 
55,000 
80,835 
6,626,088 

Options Outstanding
 Weighted
 Average
 Remaining
 Years until
 Expiration

 Weighted
 Average
 Exercise
 Price

Options Exercisable

 Number
 Exercisable

 Weighted
 Average
 Exercise
 Price

8.84 
9.34 
7.34 
8.91 
9.38 
5.86 
8.35 

  $
  $
  $
  $
  $
  $
  $

1.16 
1.27 
1.50 
1.62 
2.35 
8.54 
1.48 

1,312,493 
419,529 
1,699,753 
777,058 
14,304 
80,835 
4,303,972 

  $
  $
  $
  $
  $
  $
  $

1.16 
1.27 
1.50 
1.59 
3.67 
8.54 
1.53 

At March 31, 2019, there were 2,607,162 registered shares of our common stock remaining available for grant under the 2016 Plan.  Two officers and a member of our Board
exercised  outstanding  stock  options  to  purchase  an  aggregate  of  29,250  shares  of  our  common  stock  during  the  fiscal  year  ended  March  31,  2019. There  were  no  option
exercises during the fiscal year ended March 31, 2018.

Aggregate intrinsic value is the sum of the amount by which the fair value of the underlying common stock exceeds the aggregate exercise price of the outstanding options (in-
the-money-options).  Based  on  the  $1.29  per  share  quoted  closing  market  price  of  our  common  stock  on  March  31,  2019,  outstanding  options  to  purchase  an  aggregate  of
2,885,000 shares had aggregate intrinsic value of approximately $250,300 and exercisable options to purchase an aggregate of 1,732,022 shares had aggregate intrinsic value of
approximately $162,700 at that date.

As of March 31, 2019, there was approximately $3,089,300 of unrecognized compensation cost related to non-vested share-based compensation awards from the 2016 Plan,
which is expected to be recognized through January 2021.  

401(k) Plan

Through a third-party agent, we maintain a retirement and deferred savings plan for our employees. This plan is intended to qualify as a tax-qualified plan under Section 401(k)
of the Internal Revenue Code. The retirement and deferred savings plan provides that each participant may contribute a portion of his or her pre-tax compensation, subject to
statutory limits. Under the plan, each employee is fully vested in his or her deferred salary contributions. Employee contributions are held and invested by the plan’s trustee. The
retirement and deferred savings plan also permits us to make discretionary contributions, subject to established limits and a vesting schedule. To date, we have not made any
discretionary contributions to the retirement and deferred savings plan on behalf of participating employees.

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Table of Contents

14.  Related Party Transactions

Cato Holding Company (CHC), doing business as Cato BioVentures (CBV), is the parent of Cato Research Ltd. (CRL). CRL is a contract research, development and regulatory
services organization (CRO) that we have engaged for a wide range of material aspects related to the nonclinical and clinical development and regulatory affairs associated with
our efforts to develop and commercialize AV-101 for MDD, including our ELEVATE Study, and other potential CNS indications, PH94B, PH10, and other potential product
candidates. At March 31, 2019, CBV held approximately 2% of our outstanding common stock.

In July 2017, we entered into a Master Services Agreement (MSA) with CRL, which replaced a substantially similar May 2007 master services agreement, pursuant to which
CRL  may  assist  us  in  the  evaluation,  development,  commercialization  and  marketing  of  our  potential  product  candidates,  and  provide  regulatory  and  strategic  consulting
services as requested from time to time. Specific projects or services are and will be delineated in individual work orders negotiated from time-to-time under the MSA. Under
the terms of work orders issued pursuant to the July 2017 MSA and our prior May 2007 master services agreement, we incurred expenses of $3,969,100 and $1,390,700 for the
fiscal years ended March 31, 2019 and 2018, respectively. We anticipate periodic expenses for CRO services from CRL related to nonclinical and clinical development of, and
regulatory affairs related to, AV-101, PH94B, PH10 and other potential product candidates will increase in future periods.

As  disclosed  in  Note  9,  Capital  Stock,  in  September  2018,  we  issued  an  aggregate  of  1,630,435  shares  of  our  unregistered  common  stock  having  a  fair  market  value  of
$2,250,000 to acquire an exclusive worldwide license to develop and commercialize PH94B and an option to acquire a similar license for PH10. In October 2018, we issued an
additional  925,926  shares  of  our  unregistered  common  stock  having  a  fair  market  value  of  $2,000,000  to  exercise  the  option  to  acquire  an  exclusive  worldwide  license  to
develop and commercialize PH10. The acquisition of the licenses and option was recorded as research and development expense. Additionally, between the acquisition of the
PH94B license in September 2018 and March 31, 2019, we expensed $70,000 of monthly cash support payments to Pherin under the terms of the PH94B license agreement as
research and development expense. At March 31, 2019, Pherin held approximately 6% of our outstanding Common Stock.

15.  Commitments, Contingencies, Guarantees and Indemnifications

From time to time, we may become involved in claims and other legal matters arising in the ordinary course of business. Management is not currently aware of any claims made
or other legal matters that will have a material adverse effect on our consolidated financial position, results of operations or its cash flows.

We  indemnify  our  officers  and  directors  for  certain  events  or  occurrences  while  the  officer  or  director  is  or  was  serving  at  our  request  in  such  capacity.  The  term  of  the
indemnification period is for the officer’s or director’s lifetime. We will indemnify the officers or directors against any and all expenses incurred by the officers or directors
because of their status as one of our directors or executive officers to the fullest extent permitted by Nevada law. We have never incurred costs to defend lawsuits or settle
claims related to these indemnification agreements.  We have a director and officer insurance policy which limits our exposure and may enable us to recover a portion of any
future amounts paid.  We believe the fair value of these indemnification agreements is minimal. Accordingly, there are no liabilities recorded for these agreements at March 31,
2019 or 2018.

In the normal course of business, we provide indemnifications of varying scopes under agreements with other companies, typically clinical research organizations, investigators,
clinical sites, suppliers and others.  Pursuant to these agreements, we generally indemnify, hold harmless, and agree to reimburse the indemnified parties for losses suffered or
incurred  by  the  indemnified  parties  in  connection  with  the  use  or  testing  of  our  product  candidates  or  with  any  U.S.  patents  or  any  copyright  or  other  intellectual  property
infringement claims by any third party with respect to our product candidates.  The terms of these indemnification agreements are generally perpetual.  The potential future
payments we could be required to make under these indemnification agreements is unlimited.  We maintain liability insurance coverage that limits our exposure.  We believe
the fair value of these indemnification agreements is minimal.  Accordingly, we have not recorded any liabilities for these agreements as of March 31, 2019 or 2018.

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Table of Contents

Leases

At March 31, 2019 and or 2018, the following assets are subject to capital lease obligations and included in property and equipment:

Office equipment
Accumulated depreciation
Net book value

March 31,

2019

2018

  $

  $

14,700 
(6,500)
8,200 

  $

  $

14,700 
(3,600)
11,100 

Amortization expense for assets recorded under capital leases is included in depreciation expense.  Future minimum payments, by year and in the aggregate, required under
capital leases are as follows:

Fiscal Years Ending March 31,

2020
2021
2022

Future minimum lease payments
    Less imputed interest included in minimum lease payments
Present value of minimum lease payments
    Less current portion
Non-current capital lease obligation

  Capital Leases  
3,800 
  $
3,800 
3,300 
10,900 
(1,600)
9,300 
(3,000)
6,300 

  $

At March 31, 2019, future minimum payments under operating leases relate to our facility lease in South San Francisco, California through July 31, 2022 and are as follows:

Fiscal Years Ending March 31,

2020
2021
2022
2023

Amount

623,900 
645,800 
668,400 
225,300 
2,163,400 

  $

  $

We incurred total facility rent expense for the fiscal years ended March 31, 2019 and 2018 of $657,900 and $645,800, respectively.

Debt Repayment

At  March  31,  2019,  future  minimum  principal  payments  on  outstanding  notes  related  to  an  insurance  premium  financing  arrangement  in  the  remaining  principal  amount  of
$57,300, which will be repaid in monthly principal and interest installments of $6,600 through December 2019.

16.  Subsequent Events

We have evaluated subsequent events through the date of this Annual Report and have identified the following material events and transactions that occurred after March 31,
2019: 

Grants of Stock Options and Adoption of 2019 Stock Incentive Plan

On May 23, 2019, when the quoted market price of our common stock was $0.80 per share, the Compensation Committee of the Board granted options from our 2016 Plan to
our independent directors, officers and employees and to certain consultants to purchase an aggregate of 1,210,000 shares of our common stock at an exercise price of $1.00
per share. The options were vested 25% upon grant with the remaining shares vesting over three years for independent directors, officers and employees, and over two years
for consultants. On May 30, 2019, when the quoted market price of our common stock was $0.91 per share, we granted options to purchase 10,000 shares of our common
stock to another consultant. The options were vested 25% upon grant with the remaining shares vesting over two years.

On May 27, 2019, the Board approved, subject to subsequent stockholder approval at our 2019 Annual Meeting of Stockholders expected to be held in September 2019, the
2019 Omnibus Equity Incentive Plan (the 2019 Plan) and designated 7.5 million shares of our authorized common stock to be reserved thereunder. On May 28, 2019, when
the  quoted  market  price  of  our  common  stock  was  $0.82  per  share,  the  Compensation  Committee  granted  options  from  the  2019  Plan  to  one  of  our  officers  to  purchase
170,000 shares of our common stock at an exercise price of $1.00 per share, which grant is contingent upon the approval of the 2019 Plan by our stockholders. The option will
vest 25% upon approval of the 2019 Plan with the remaining shares vesting over three years.

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Table of Contents

17. Supplemental Financial Information (Unaudited)

The  following  table  presents  the  unaudited  statements  of  operations  data  for  each  of  the  eight  quarters  in  the  period  ended  March  31,  2019.  The  information  has  been
presented  on  the  same  basis  as  the  audited  financial  statements  and  all  necessary  adjustments,  consisting  only  of  normal  recurring  adjustments,  have  been  included  in  the
amounts below to present fairly the unaudited quarterly results when read in conjunction with the audited financial statements and related notes. The operating results for any
quarter should not be relied upon as necessarily indicative of results for any future period.

Quarterly Results of Operations (Unaudited)
 (in thousands, except share and per share amounts)

Operating expenses:

Research and development
General and administrative
Total operating expenses

Loss from operations

Other expenses, net:

Interest expense, net
Loss on extinguishment of accounts payable

Loss before income taxes
Income taxes
Net loss and comprehensive loss

Three Months Ended

June 30,
2018

September
30, 2018

December
31, 2018

March 31,
2019

Total
Fiscal Year
2019

  $

  $

2,744 
1,466 
4,210 
(4,210)    

  $

5,261 
2,171 
7,432 
(7,432)    

  $

5,335 
1,857 
7,192 
(7,192)    

  $

3,758 
1,964 
5,722 
(5,722)    

17,098 
7,458 
24,556 
(24,556)

(2)    
- 

(3)    
- 

(2)    
(23)    

(1)    
- 

(8)
(23)

(4,212)    
(2)    
(4,214)    

(7,435)    
- 
(7,435)    

(7,217)    
- 
(7,217)    

(5,723)    
- 
(5,723)    

(24,587)
(2)
(24,589)

Accrued dividend on Series B Preferred stock
Net loss attributable to common stockholders

(274)    
(4,488)   $

(284)    
(7,719)   $

(291)    
(7,508)   $

(291)    
(6,014)   $

(1,140)
(25,729)

  $

Basic and diluted net loss per common share
attributable to common stockholders

Weighted average shares used in computing:
 Basic and diluted net loss per common share
       attributable to common stockholders

Operating expenses:

Research and development
General and administrative
Total operating expenses

Loss from operations

Other expenses, net:

Interest expense, net
Loss on extinguishment of accounts payable

Loss before income taxes
Income taxes
Net loss and comprehensive loss

Accrued dividend on Series B Preferred stock
Deemed dividend from trigger of down round

provision feature

  $

(0.20)   $

(0.30)   $

(0.24)   $

(0.17)   $

(0.90)

    22,987,066 

    25,815,245 

    30,696,312 

    35,113,753 

    28,562,490 

Three Months Ended

June 30,
2017

September
30, 2017

December
31, 2017

March 31,
2018

Total
Fiscal Year
2018

  $

  $

1,096 
1,164 
2,260 
(2,260)    

  $

2,427 
2,567 
4,994 
(4,994)    

  $

1,602 
1,266 
2,868 
(2,868)    

  $

2,638 
1,440 
4,078 
(4,078)    

7,763 
6,437 
14,200 
(14,200)

(3)    

- 

(3)    

- 

(2)    
(135)    

(1)    

- 

(9)
(135)

(2,263)    
(2)    
(2,265)    
(247)    

(4,997)    
- 
(4,997)    
(257)    

(3,005)    
- 
(3,005)    
(263)    

(4,079)    
- 
(4,079)    
(263)    

(14,344)
(2)
(14,346)
(1,030)

- 

- 

(199)    

- 

(199)

Net loss attributable to common stockholders

  $

(2,512)   $

(5,254)   $

(3,467)   $

(4,342)   $

(15,575)

Basic and diluted net loss per common share

attributable to common stockholders

Weighted average shares used in computing:

Basic and diluted net loss per common share

attributable to common stockholders

  $

(0.28)   $

(0.53)   $

(0.25)   $

(0.19)   $

(1.12)

9,034,213 

9,892,016 

    13,895,642 

    22,880,968 

    13,890,041 

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Table of Contents

 Item 9.  Changes in and Disagreements With Accountants on Accounting and Financial Disclosure

None.

 Item 9A.  Controls and Procedures

Disclosure Controls and Procedures.

As required by Rule 13a-15(b) under the Securities Exchange Act of 1934, as amended, (the Exchange Act) our Chief Executive Officer (CEO) and our Chief Financial Officer
(CFO)  conducted  an  evaluation  as  of  the  end  of  the  period  covered  by  this Annual  Report  on  Form  10-K,  of  the  effectiveness  of  our  disclosure  controls  and  procedures  as
defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act. Based on that evaluation, our CEO and our CFO each concluded that our disclosure controls and procedures
are effective to provide reasonable assurance that information required to be disclosed in the reports that we file or submit under the Exchange Act, (i) is recorded, processed,
summarized  and  reported  within  the  time  periods  specified  in  the  Securities  and  Exchange  Commission's  rules  and  forms  and  (ii)  is  accumulated  and  communicated  to  our
management, including our CEO and our CFO, as appropriate to allow timely decisions regarding required disclosure.

Management's Report on Internal Control Over Financial Reporting.

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rules 13a-15(f) and
15d-15(f). Our internal control system is designed to provide reasonable assurance to our management and Board of Directors regarding the reliability of financial reporting and
the preparation and fair presentation of financial statements for external purposes in accordance with U.S. generally accepted accounting principles.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Therefore, even those systems determined to be effective
can  provide  only  reasonable  assurance  of  achieving  their  control  objectives.  Smaller  reporting  companies  may  face  additional  limitations  in  achieving  control  objectives.
Smaller reporting companies typically employ fewer individuals who are often tasked with a wide range of responsibilities, making it difficult to segregate duties. Often, one or
two individuals control many, or all, aspects of the smaller reporting company’s general and financial operations, placing such individual(s) in a position to override any system
of internal control. Additionally, projections of an evaluation of current effectiveness to future periods are subject to the risk that controls may become inadequate because of
changes in conditions, or that the degree of compliance with the controls may deteriorate.

Management has assessed the effectiveness of our internal control over financial reporting for our fiscal year ended March 31, 2019. Management's assessment was based on
criteria set forth in Internal Control - Integrated Framework (2013), issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based upon
this assessment, management concluded that, as of March 31, 2019, our internal control over financial reporting was not effective, based upon those criteria, as a result of the
material weaknesses identified below.

A  material  weakness  is  a  deficiency  or  combination  of  deficiencies  in  internal  control  over  financial  reporting,  such  that  there  is  a  reasonable  possibility  that  a  material
misstatement of the annual or interim financial statements will not be prevented or detected on a timely basis.

Specifically,  management  identified  the  following  control  weaknesses:  (i)  the  size  of  the  Company’s  staff  does  not  permit  appropriate  segregation  of  duties  to  (a)  permit
appropriate review of accounting transactions and/or accounting treatment by multiple qualified individuals, and (b) prevent one individual from overriding the internal control
system by initiating, authorizing and completing all transactions; and (ii) the Company utilizes accounting software that does not prevent erroneous or unauthorized changes to
previous reporting periods and/or can be adjusted so as to not provide an adequate audit trail of entries made in the accounting software. The Company does not believe that
these  control  weaknesses  have  resulted  in  any  deficient  financial  reporting  because  each  of  our  CEO  and  CFO  is  aware  of  his  responsibilities  under  the  SEC's  reporting
requirements and personally certifies our financial reports. Further, the Company has implemented a series of manual checks and balances to verify that no previous reporting
period has been improperly modified and that no unauthorized entries have been made in the current reporting period.

Accordingly, while the Company has identified certain material weaknesses in its system of internal control over financial reporting, it believes that it has taken reasonable and
sufficient steps to ascertain that the financial information contained in this Annual Report is in accordance with U.S. generally accepted accounting principles. Management has
determined that current resources would be more appropriately applied elsewhere and when resources permit, they will alleviate the material weaknesses through various steps,
which may include the addition of qualified financial personnel and/or the acquisition and implementation of alternative accounting software.

As a result of the enactment of the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, and the resulting amendment of Section 404 of the Sarbanes-Oxley
Act of 2002, as a smaller reporting company, we are not required to provide an attestation report by our independent registered public accounting firm regarding internal control
over financial reporting for the fiscal year ended March 31, 2019 or thereafter, until such time as we are no longer eligible for the exemption for smaller issuers set forth within
the Sarbanes-Oxley Act.

 Item 9B.  Other Information

None.

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Table of Contents

Item 10. Directors, Executive Officers and Corporate Governance

PART III

The information required by this Item is incorporated herein by reference to the information that will be contained in our proxy statement related to the 2019 Annual Meeting of
Stockholders, which we intend to file with the Securities and Exchange Commission on or before July 29, 2019 pursuant to General Instruction G(3) of Form 10-K.

Item 11. Executive Compensation

The information required by this Item is incorporated herein by reference to the information that will be contained in our proxy statement related to the 2019 Annual Meeting of
Stockholders, which we intend to file with the Securities and Exchange Commission on or before July 29, 2019 pursuant to General Instruction G(3) of Form 10-K.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required by this Item is incorporated herein by reference to the information that will be contained in our proxy statement related to the 2019 Annual Meeting of
Stockholders, which we intend to file with the Securities and Exchange Commission on or before July 29, 2019 pursuant to General Instruction G(3) of Form 10-K.

Item 13. Certain Relationships and Related Transactions, and Director Independence

The information required by this Item is incorporated herein by reference to the information that will be contained in our proxy statement related to the 2019 Annual Meeting of
Stockholders, which we intend to file with the Securities and Exchange Commission on or before July 29, 2019 pursuant to General Instruction G(3) of Form 10-K.

Item 14. Principal Accounting Fees and Services

The information required by this Item is incorporated herein by reference to the information that will be contained in our proxy statement related to the 2019 Annual Meeting of
Stockholders, which we intend to file with the Securities and Exchange Commission on or before July 29, 2019 pursuant to General Instruction G(3) of Form 10-K.

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 Item 15.  Exhibits, Financial Statement Schedules

(a)(1) Financial Statements

See Index to Financial Statements under Item 8 on page 64.

(a)(2) Consolidated Financial Statement Schedules

PART IV

Consolidated financial statement schedules are omitted because they are not applicable or are not required or the information required to be set forth therein is included in the
Consolidated Financial Statements or notes thereto.

(a)(3) Exhibits

The exhibits listed in the Exhibit Index below are filed or incorporated by reference as part of this report.

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Table of Contents

Exhibit No.
2.1*
3.4

3.5

3.6

3.7

3.9

3.10

3.11

3.12

10.22*
10.23*

10.24*

10.26*

10.40*
10.41*
10.49

10.57

10.67

10.73

10.75

10.76

 Exhibit Index

Description
Agreement and Plan of Merger by and among Excaliber Enterprises, Ltd., VistaGen Therapeutics, Inc. and Excaliber Merger Subsidiary, Inc.
Articles of Merger filed with the Nevada Secretary of State on May 24, 2011, incorporated by reference from Exhibit 3.1 to the Company’s Current Report
on Form 8-K filed on May 31, 2011.
Certificate  of  Designations  Series  A  Preferred,  incorporated  by  reference  from  Exhibit  3.1  to  the  Company’s  Current  Report  on  Form  8-K  filed  on
December 23, 2011.
Certificate of Change filed with the Nevada Secretary of State on August 11, 2014 incorporated by reference from Exhibit 3.1 to the Company’s Current
Report on Form 8-K filed on August 14, 2014.
Certificate of Designation of the Relative Rights and Preferences of the Series B 10% Convertible Preferred Stock of VistaGen Therapeutics, Inc., filed
with the Nevada Secretary of State on May 7, 2015, incorporated by reference from Exhibit 3.1 to the Company’s Current Report on Form 8-K filed on
May 13, 2015.
Certificate  of  Designation  of  the  Relative  Rights  and  Preferences  of  the  Series  C  Convertible  Preferred  Stock  of  VistaGen  Therapeutics,  Inc.,  dated
January 25, 2016, incorporated by reference from Exhibit 3.1 to the Company’s Current Report on Form 8-K filed on January 29, 2016.
Restated Articles of Incorporation of VistaGen Therapeutics, Inc., dated August 16, 2016, incorporated by reference from Exhibit 3.1 to the Company’s
Current Report on Form 8-K, filed on August 17, 2016.
Second  Amended  and  Restated  Bylaws  of  VistaGen  Therapeutics,  Inc.,  dated  August  16,  2016,  incorporated  by  reference  from  Exhibit  3.2  to  the
Company’s Current Report on Form 8-K, filed on August 16, 2016.
Certificate of Amendment to the Restated and Amended Articles of Incorporation of VistaGen Therapeutics, Inc., dated September 15, 2017; incorporated
by reference from Exhibit 3.1 to the Company’s Current Report on Form 8-K, filed on September 20, 2017.
License Agreement by and between Mount Sinai School of Medicine of New York University and the Company, dated October 1, 2004.
Non-Exclusive License Agreement, dated December 5, 2008, by and between VistaGen and Wisconsin Alumni Research Foundation, as amended by that
certain Wisconsin Materials Addendum, dated February 2, 2009.
Sponsored Research Collaboration Agreement, dated September 18, 2007, between VistaGen and University Health Network, as amended by that certain
Amendment No. 1 and Amendment No. 2, dated April 19, 2010 and December 15, 2010, respectively.
License  Agreement,  dated  October  24,  2001,  by  and  between  the  University  of  Maryland,  Baltimore,  Cornell  Research  Foundation  and  Artemis
Neuroscience, Inc.
Employment Agreement, by and between, VistaGen and Shawn K. Singh, dated April 28, 2010, as amended May 9, 2011.
Employment Agreement, by and between, VistaGen and H. Ralph Snodgrass, PhD, dated April 28, 2010, as amended May 9, 2011.
License Agreement No. 1, dated as of October 24, 2011 between University Health Network and VistaGen Therapeutics, Inc., incorporated by reference
from Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on November 30, 2011.
License Agreement No. 2, dated as of March 19, 2012 between University Health Network and VistaGen Therapeutics, Inc., incorporated by reference
from Exhibit 10.57 to the Company’s Annual Report on Form 10-K filed on July 2, 2012.
Note Exchange and Purchase Agreement dated as of October 11, 2012 by and between VistaGen Therapeutics, Inc. and Platinum Long Term Growth VII,
LLP, incorporated by reference from Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on October 16, 2012.
Amendment to Note Exchange and Purchase Agreement as of November 14, 2012 between VistaGen Therapeutics Inc. and Platinum Long Term Growth
VII, LLP, incorporated by reference from Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on November 20, 2012.
Amendment  No.  2  to  Note  Exchange  and  Purchase Agreement  as  of  January  31,  2013  between  VistaGen  Therapeutics  Inc.  and  Platinum  Long  Term
Growth VII, LLP, incorporated by reference from Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q filed on February 14, 2013.
Amendment  No.  3  to  Note  Exchange  and  Purchase Agreement  as  of  February  22,  2013  between  VistaGen  Therapeutics  Inc.  and  Platinum  Long  Term
Growth VII, LLP, incorporated by reference from Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on February 28, 2013.

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10.77

10.83

10.84

10.85

10.86

10.87

10.88

10.111

10.112

10.113

10.114

10.115
10.116

10.117

10.118

10.119

10.120+

10.121+

10.122

Form of Warrant to Purchase Common Stock issued to independent members of the Company’s Board of Directors and its executive officers on March 3,
2013, incorporated by reference from Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on March 6, 2013.
Lease  between  Bayside Area  Development,  LLC  and  VistaGen  Therapeutics,  Inc.  (California)  dated April  24,  2013,  incorporated  by  reference  from
Exhibit 10.83 to the Company’s Annual Report on Form 10-K filed July 18, 2013.
Indemnification  Agreement  effective  May  20,  2013  between  the  Company  and  Jon  S.  Saxe,  incorporated  by  reference  from  Exhibit  10.84  to  the
Company’s Annual Report on Form 10-K filed on July 18, 2013.
Indemnification Agreement  effective  May  20,  2013  between  the  Company  and  Shawn  K.  Singh,  incorporated  by  reference  from  Exhibit  10.85  to  the
Company’s Annual Report on Form 10-K filed on July 18, 2013.
Indemnification Agreement effective May 20, 2013 between the Company and H. Ralph Snodgrass, incorporated by reference from Exhibit 10.86 to the
Company’s Annual Report on Form 10-K filed on July 18, 2013.
Indemnification Agreement effective May 20, 2013 between the Company and Brian J. Underdown, incorporated by reference from Exhibit 10.87 to the
Company’s Annual Report on Form 10-K filed on July 18, 2013.
Indemnification Agreement  effective  May  20,  2013  between  the  Company  and  Jerrold  D.  Dotson,  incorporated  by  reference  from  Exhibit  10.88  to  the
Company’s Annual Report on Form 10-K filed on July 18, 2013.
Exchange Agreement,  by  and  between  VistaGen  Therapeutics,  Inc.,  and  Platinum  Long  Term  Growth  VII,  LLC  and  Montsant  Partners,  LLC,  dated
January 25, 2016, incorporated by reference from Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on January 29, 2016.
Indemnification  Agreement  effective  April  8,  2016  between  the  Company  and  Jerry  B.  Gin,  incorporated  by  reference  from  Exhibit  10.112  to  the
Company’s Annual Report on Form 10-K filed on June 24, 2016.
Underwriting Agreement, by and between Chardan Capital Markets, LLC and WallachBeth Capital, LLC, as representatives of the several underwriters,
and VistaGen Therapeutics, Inc., dated May 10, 2016, incorporated by reference from Exhibit 1.1 to the Company’s Current Report on Form 8-K filed on
May 16, 2016.
Warrant Agency Agreement, by and between Computershare, Inc. and VistaGen Therapeutics, Inc., dated May 16, 2016, incorporated by reference from
Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on May 16, 2016.
Form of Warrant; incorporated by reference from Exhibit 4.2 to the Company’s Current Report on Form 8-K filed on May 16, 2016.
Second Amendment to Employment Agreement by and between VistaGen Therapeutics, Inc. and Shawn K. Singh, dated June 22, 2016, incorporated by
reference from Exhibit 10.116 to the Company’s Annual Report on Form 10-K filed on June 24, 2016.
Second  Amendment  to  Employment  Agreement  by  and  between  VistaGen  Therapeutics,  Inc.  and  H.  Ralph  Snodgrass,  Ph.D.,  dated  June  22,  2016,
incorporated by reference from Exhibit 10.117 to the Company’s Annual Report on Form 10-K filed on June 24, 2016.
Second Amendment  to  Lease  between  Bayside Area  Development  and  the  Company,  effective  November  10,  2016,  incorporated  by  reference  from
Exhibit 10.1 to the Company’s Quarterly report on Form 10-Q filed on November 15, 2016.
Indemnification Agreement effective November 10, 2016 between the Company and Mark A. Smith, incorporated by reference from Exhibit 10.2 to the
Company’s Quarterly report on Form 10-Q filed on November 15, 2016.
Exclusive  License  and  Sublicense  Agreement  by  and  between  VistaGen  Therapeutics,  Inc.  and  Apollo  Biologics  LP,  effective  December  9,  2016,
incorporated by reference from Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q filed on May 11, 2017.
Patent License Amendment Agreement between VistaGen Therapeutics Inc. and University Health Network effective December 9, 2016, incorporated by
reference from Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q/A filed on May 1, 2017.
Amended and Restated 2016 Stock Incentive Plan (formerly the VistaGen Therapeutics, Inc. 2008 Stock Incentive Plan), incorporated by reference from
Exhibit 10.122 to the Company’s Annual Report on Form 10-K filed on June 29, 2017.

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10.123

10.124
10.125
10.126

10.127
10.128

10.129
10.130+

10.131+

10.132+

10.133

10.134

10.135

10.136
10.137

10.138
23.1
31.1
31.2
32.1

101.INS
101.SCH
101.CAL
101.DEF
101.LAB
101.PRE
_______________

Underwriting Agreement,  dated  as  of August  31,  2017,  by  and  between  VistaGen  Therapeutics,  Inc.  and  Oppenheimer  &  Co.  Inc.,  incorporated  by
reference from Exhibit 1.1 to the Company’s Current Report on Form 8-K filed on August 31, 2017.
Form of Series A1 Warrant, incorporated by reference from Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on August 31, 2017.
Form of Series A2 Warrant, incorporated by reference from Exhibit 4.2 to the Company’s Current Report on Form 8-K filed on August 31, 2017.
Underwriting Agreement,  dated  as  of  December  11,  2017,  by  and  between  VistaGen  Therapeutics,  Inc.  and  Oppenheimer  &  Co.  Inc.,  incorporated  by
reference from Exhibit 1.1 to the Company’s Current Report on Form 8-K filed on December 13, 2017.
Form of Warrant, incorporated by reference from Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on December 13, 2017.
Form of Summer 2018 Private Placement Subscription Agreement, incorporated by reference from the Company’s Current Report on Form 8-K filed on
August 9, 2018.
Form of Summer 2018 Private Placement Warrant, incorporated by reference from the Company’s Current Report on Form 8-K filed on August 9, 2018.
License Agreement (PH94B), by and between VistaGen Therapeutics, Inc. and Pherin Pharmaceuticals, Inc., dated September 11, 2018, incorporated by
reference from Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on September 13, 2018
Option Agreement, by and between VistaGen Therapeutics, Inc. and Pherin Pharmaceuticals, Inc., dated September 11, 2018, incorporated by reference
from Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on September 13, 2018.
License Agreement  (PH10),  by  and  between  VistaGen  Therapeutics,  Inc.  and  Pherin  Pharmaceuticals,  Inc.,  dated  October  24,  2018,  incorporated  by
reference from Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q/A filed on October 30, 2018.
Form of Fall 2018 Private Placement Subscription Agreement, incorporated by reference from Exhibit 10.4 to the Company’s Quarterly Report on Form
10-Q filed on October 29, 2018.
Form of Fall 2018 Private Placement Warrant, incorporated by reference from Exhibit 10.5 to the Company’s Quarterly Report on Form 10-Q filed on
October 29, 2018.
Indemnification Agreement, dated January 10, 2019, by and between VistaGen Therapeutics, Inc. and Ann Cunningham, incorporated by reference from
Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on January 15, 2019.
Indemnification Agreement, dated November 10, 2016, by and between VistaGen Therapeutics, Inc. and Mark A. McPartland, filed herewith.
Underwriting Agreement, dated as of February 26, 2019, by and between VistaGen Therapeutics, Inc. and William Blair & Company, LLC, incorporated
by reference from Exhibit 1.1 to the Company’s Current Report on Form 8-K filed on March 4, 2019.
Master Services Agreement, dated July 11, 2017, by and between VistaGen Therapeutics, Inc. and Cato Research Ltd., filed herewith.
Consent of Independent Registered Public Accounting Firm, filed herewith.
Certification of the Company’s Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, filed herewith.
Certification of the Company’s Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, filed herewith.
Certification  of  the  Company’s  Chief  Executive  Officer  and  Chief  Financial  Officer  pursuant  to  Section  906  of  the  Sarbanes-Oxley Act  of  2002,  filed
herewith.
XBRL Instance Document, filed herewith
XBRL Taxonomy Extension Schema, filed herewith
XBRL Taxonomy Extension Calculation Linkbase, filed herewith
XBRL Taxonomy Extension Definition Linkbase, filed herewith
XBRL Taxonomy Extension Label Linkbase, filed herewith
XBRL Taxonomy Extension Presentation Linkbase, filed herewith

*  Incorporated by reference from the like-numbered exhibit filed with our Current Report on Form 8-K on May 16, 2011.
+ Confidential treatment has been granted for certain confidential portions of this agreement.

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Pursuant  to  the  requirements  of  Section  13  or  15(d)  of  the  Securities  Exchange Act  of  1934,  the  Registrant  has  duly  caused  this  report  to  be  signed  on  its  behalf  by  the
undersigned, thereunto duly authorized, in the City of South San Francisco, State of California, on the 25th day of June, 2019.

SIGNATURES

Date: June 25, 2019

VistaGen Therapeutics, Inc.

By:   /s/ Shawn K. Singh

Shawn K. Singh, J.D.
Chief Executive Officer 

In accordance with the Exchange Act, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. 

Signature

Title

/s/ Shawn K. Singh        
Shawn K. Singh, JD

/s/ Jerrold D. Dotson        
Jerrold D. Dotson

/s/ H. Ralph Snodgrass        
H. Ralph Snodgrass, Ph.D

/s/ Jon S. Saxe        
Jon S. Saxe

/s/ Brian J. Underdown        
Brian J. Underdown, Ph. D

/s/ Jerry B. Gin, Ph.D     
Jerry B. Gin, Ph.D.

/s/ Ann M. Cunningham     
Ann M. Cunningham

   Chief Executive Officer, and Director

(Principal Executive Officer)

   Vice President and Chief Financial Officer

(Principal Financial and Accounting Officer)

   President, Chief Scientific Officer and Director

   Chairman of the Board of Directors

   Director

Director

Director

-120-

Date

June 25, 2019

June 25, 2019

June 25, 2019

June 25, 2019

June 25, 2019

June 25, 2019

June 25, 2019

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
THIS AGREEMENT is entered into, effective as of November 10, 2016 between VistaGen Therapeutics, Inc., a Nevada corporation (the "Company"), and Mark A.

McPartland (“Indemnitee”).

VISTAGEN THERAPEUTICS, INC. INDEMNIFICATION AGREEMENT

 Exhibit 10.136

WHEREAS, it is essential to the Company to retain and attract as directors and officers the most capable persons available;

WHEREAS, Indemnitee is an officer of the Company;

WHEREAS, both the Company and Indemnitee recognize the increased risk of litigation and other claims currently being asserted against directors and officers of

corporations; and

WHEREAS, in recognition of Indemnitee's need for substantial protection against personal liability in order to enhance Indemnitee's continued and effective service
to the Company, and in order to induce Indemnitee to provide services to the Company as an officer, the Company wishes to provide in this Agreement for the indemnification
of  and  the  advancing  of  expenses  to  Indemnitee  to  the  fullest  extent  (whether  partial  or  complete)  permitted  by  law  and  as  set  forth  in  this Agreement,  and,  to  the  extent
insurance is maintained, for the coverage of Indemnitee under the Company's directors' and officers' liability insurance policies.

NOW, THEREFORE, in consideration of the above premises and of Indemnitee's continuing to serve the Company directly or, at its request, with another enterprise,

and intending to be legally bound hereby, the parties agree as follows:

1. Certain Definitions:

(a) Board: the Board of Directors of the Company.

(b) Change in Control: shall be deemed to have occurred if (i) any "person" (as such term is used in Sections 13(d) and 14(d) of the Securities Exchange

Act of 1934, as amended), other than a trustee or other fiduciary holding securities under an employee benefit plan of the Company or a corporation owned directly or
indirectly by the shareholders of the Company in substantially the same proportions as their ownership of stock of the Company, is or becomes the "Beneficial Owner" (as
defined in Rule 13d-3 under said Act), directly or indirectly, of securities of the Company representing 20% or more of the total voting power represented by the Company's
then outstanding Voting Securities, or (ii) during any period of two consecutive years, individuals who at the beginning of such period constitute the Board and any new
director whose election by the Board or nomination for election by the Company's shareholders was approved by a vote of at least two-thirds (2/3) of the directors then still in
office who either were directors at the beginning of the period or whose election or nomination for election was previously so approved, cease for any reason to constitute a
majority thereof, or (iii) the shareholders of the Company approve a merger or consolidation of the Company with any other corporation, other than a merger or consolidation
that would result in the Voting Securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted
into Voting Securities of the surviving entity) at least 80% of the total voting power represented by the Voting Securities of the Company or such surviving entity outstanding
immediately after such merger or consolidation, or the shareholders of the Company approve a plan of complete liquidation of the Company or an agreement for the sale or
disposition by the Company (in one transaction or a series of transactions) of all or substantially all of the Company's assets.

(c) Expenses: any expense, liability, or loss, including attorneys' fees, judgments, fines, ERISA excise taxes and penalties, amounts paid or to be paid in

settlement, any interest, assessments, or other charges imposed thereon, and any federal, state, local, or foreign taxes imposed as a result of the actual or deemed receipt of any
payments under this Agreement, paid or incurred in connection with investigating, defending, being a witness in, or participating in (including on appeal), or preparing for any
of the foregoing in, any Proceeding relating to any Indemnifiable Event.

-1-

 
 
  
  
  
  
  
  
  
   
  
 
 
 
 
(d) Indemnifiable Event: any event or occurrence that takes place either prior to or after the execution of this Agreement, related to the fact that Indemnitee

is or was an officer of the Company, or while an officer is or was serving at the request of the Company as a director, officer, employee, trustee, agent, or fiduciary of another
foreign or domestic corporation, partnership, joint venture, employee benefit plan, trust, or other enterprise, or was a director, officer, employee, or agent of a foreign or
domestic corporation that was a predecessor corporation of the Company or of another enterprise at the request of such predecessor corporation, or related to anything done or
not done by Indemnitee in any such capacity, whether or not the basis of the Proceeding is alleged action in an official capacity as a director, officer, employee, or agent or in
any other capacity while serving as a director, officer, employee, or agent of the Company, as described above.

  (e)     Independent Counsel: the person or body appointed in connection with Section 3.

  (f) Proceeding: any threatened, pending, or completed action, suit, or proceeding (including an action by or in the right of the Company), or any inquiry,
hearing, or investigation, whether conducted by the Company or any other party, that Indemnitee in good faith believes might lead to the institution of any such action, suit, or
proceeding, whether civil, criminal, administrative, investigative, or other.

(g) Reviewing Party: the person or body appointed in accordance with Section

3.

(h) Voting Securities: any securities of the Company that vote generally in the election of directors.

2. Agreement to Indemnify.

(a) General Agreement. In the event Indemnitee was, is, or becomes a party to or witness or other participant in, or is threatened to be made a party to or

witness or other participant in, a Proceeding by reason of (or arising in part out of) an Indemnifiable Event, the Company shall indemnify Indemnitee from and against any and
all Expenses to the fullest extent permitted by law, as the same exists or may hereafter be amended or interpreted (but in the case of any such amendment or interpretation, only
to the extent that such amendment or interpretation permits the Company to provide broader indemnification rights than were permitted prior thereto). The parties hereto intend
that this Agreement shall provide for indemnification in excess of that expressly permitted by statute, including, without limitation, any indemnification provided by the
Company's Articles of Incorporation, its Bylaws, vote of its shareholders or disinterested directors, or applicable law.

(b) Initiation of Proceeding. Notwithstanding anything in this Agreement to the contrary, Indemnitee shall not be entitled to indemnification pursuant to
this Agreement in connection with any Proceeding initiated by Indemnitee against the Company or any director of the Company unless (i) the Company has joined in or the
Board has consented to the initiation of such Proceeding; (ii) the Proceeding is one to enforce indemnification rights under Section 5; or (iii) the Proceeding is instituted after a
Change in Control (other than a Change in Control approved by a majority of the directors on the Board who were directors immediately prior to such Change in Control) and
Independent Counsel has approved its initiation.

(c) Expense Advances. If so requested by Indemnitee, the Company shall advance (within ten business days of such request) any and all Expenses to

Indemnitee (an "Expense Advance"); provided that, if and to the extent that the Reviewing Party determines that Indemnitee would not be permitted to be so indemnified under
applicable law, the Company shall be entitled to be reimbursed by Indemnitee (who hereby agrees to reimburse the Company) for all such amounts theretofore paid. If
Indemnitee has commenced or commences legal proceedings in a court of competent jurisdiction to secure a determination that Indemnitee should be indemnified under
applicable law, as provided in Section 4, any determination made by the Reviewing Party that Indemnitee would not be permitted to be indemnified under applicable law shall
not be binding and Indemnitee shall not be required to reimburse the Company for any Expense Advance until a final judicial determination is made with respect thereto (as to
which all rights of appeal therefrom have been exhausted or have lapsed). Indemnitee's obligation to reimburse the Company for Expense Advances shall be unsecured and no
interest shall be charged thereon.

(d) Mandatory Indemnification. Notwithstanding any other provision of this Agreement, to the extent that Indemnitee has been successful on the merits in

defense of any Proceeding relating in whole or in part to an Indemnifiable Event or in defense of any issue or matter therein, Indemnitee shall be indemnified against all
Expenses incurred in connection therewith.

-2-

 
 
  
 
  
 
 
 
 
  
 
 
 
 
Expenses, but not, however, for the total amount thereof, the Company shall nevertheless indemnify Indemnitee for the portion thereof to which Indemnitee is entitled.

(e) Partial Indemnification. If indemnitee is entitled under any provision of this Agreement to indemnification by the Company for some or a portion of

(f) Prohibited Indemnification. No indemnification pursuant to this Agreement shall be paid by the Company on account of any Proceeding in which final
unappealed judgment beyond the right of appeal is rendered against Indemnitee for an accounting of profits made from the purchase or sale by Indemnitee of securities of the
Company pursuant to the provisions of Section 16(b) of the Securities Exchange Act of 1934, as amended, or similar provisions of any federal, state, or local laws.

3. Reviewing Party. Prior to any Change in Control, the Reviewing Party shall be any appropriate person or body consisting of a member or members of the Board
or any other person or body appointed by the Board who is not a party to the particular Proceeding with respect to which Indemnitee is seeking indemnification; after a Change
in Control, the Reviewing Party shall be the Independent Counsel referred to below. With respect to all matters arising after a Change in Control (other than a Change in
Control approved by a majority of the directors on the Board who were directors immediately prior to such Change in Control) concerning the rights of Indemnitee to indemnity
payments and Expense Advances under this Agreement or any other agreement or under applicable law or the Company's Articles of Incorporation or Bylaws now or hereafter
in effect relating to indemnification for Indemnifiable Events, the Company shall seek legal advice only from Independent Counsel selected by Indemnitee and approved by the
Company (which approval shall not be unreasonably withheld), and who has not otherwise performed services for the Company or the Indemnitee (other than in connection
with indemnification matters) within the last five years. The Independent Counsel shall not include any person who, under the applicable standards of professional conduct then
prevailing, would have a conflict of interest in representing either the Company or Indemnitee in an action to determine Indemnitee's rights under this Agreement. Such counsel,
among other things, shall render its written opinion to the Company and Indemnitee as to whether and to what extent the Indemnitee should be permitted to be indemnified
under applicable law. The Company agrees to pay the reasonable fees of the Independent Counsel and to indemnify fully such counsel against any and all expenses (including
attorneys' fees), claims, liabilities, loss, and damages arising out of or relating to this Agreement or the engagement of Independent Counsel pursuant hereto.

4. Indemnification Process and Appeal.

 (a) Indemnification Payment. Indemnitee shall be entitled to indemnification of Expenses, and shall receive payment thereof, from the Company in

accordance with this Agreement as soon as practicable after Indemnitee has made written demand on the Company for indemnification, unless the Reviewing Party has given a
written opinion to the Company that Indemnitee is not entitled to indemnification under applicable law.

(b) Suit to Enforce Rights. Regardless of any action by the Reviewing Party, if Indemnitee has not received full indemnification within thirty days after

making a demand in accordance with Section 4(a), Indemnitee shall have the right to enforce its indemnification rights under this Agreement by commencing litigation in any
court in the State of Nevada having subject matter jurisdiction thereof and in which venue is proper seeking an initial determination by the court or challenging any
determination by the Reviewing Party or any aspect thereof. The Company hereby consents to service of process and to appear in any such proceeding. Any determination by
the Reviewing Party not challenged by the Indemnitee shall be binding on the Company and Indemnitee. The remedy provided for in this Section 4 shall be in addition to any
other remedies available to Indemnitee in law or equity.

(c) Defense to Indemnification, Burden of Proof, and Presumptions. It shall be a defense to any action brought by Indemnitee against the Company to

enforce this Agreement (other than an action brought to enforce a claim for Expenses incurred in defending a Proceeding in advance of its final disposition where the required
undertaking has been tendered to the Company) that it is not permissible under applicable law for the Company to indemnify Indemnitee for the amount claimed. In connection
with any such action or any determination by the Reviewing Party or otherwise as to whether Indemnitee is entitled to be indemnified hereunder, the burden of proving such a
defense or determination shall be on the Company. Neither the failure of the Reviewing Party or the Company (including its Board, independent legal counsel, or its
shareholders) to have made a determination prior to the commencement of such action by Indemnitee that indemnification of the claimant is proper under the circumstances
because he has met the standard of conduct set forth in applicable law, nor an actual determination by the Reviewing Party or Company (including its Board, independent legal
counsel, or its shareholders) that the Indemnitee had not met such applicable standard of conduct, shall be a defense to the action or create a presumption that the Indemnitee
has not met the applicable standard of conduct. For purposes of this Agreement, the termination of any claim, action, suit, or proceeding, by judgment, order, settlement
(whether with or without court approval), conviction, or upon a plea of nolo contendere, or its equivalent, shall not create a presumption that Indemnitee did not meet any
particular standard of conduct or have any particular belief or that a court has determined that indemnification is not permitted by applicable law.

-3-

 
 
  
  
  
  
  
 
 
 
 
 
5. Indemnification for Expenses Incurred in Enforcing Rights. The Company shall indemnify Indemnitee against any and all Expenses that are incurred by

Indemnitee in connection with any action brought by Indemnitee for

Company's Articles of Incorporation or Bylaws now or hereafter in effect relating to indemnification for Indemnifiable Events; and/or

  (i) indemnification of Expenses by the Company under this Agreement or any other agreement or under applicable law or the

(ii) recovery under directors' and officers' liability insurance policies maintained by the Company, but only in the event that
Indemnitee ultimately is determined to be entitled to such indemnification or insurance recovery, as the case may be. In addition, the Company shall, if so
requested by Indemnitee, advance the foregoing Expenses to Indemnitee, subject to and in accordance with Section 2(c).

6. Notification 
Proceeding.

and 

Defense 

of

(a) Notice. Promptly after receipt by Indemnitee of notice of the commencement of any Proceeding, Indemnitee will, if a claim in respect thereof is to be
made against the Company under this Agreement, notify the Company of the commencement thereof; but the omission so to notify the Company will not relieve it from any
liability that it may have to Indemnitee, except as provided in Section 6(c).

(b) Defense. With respect to any Proceeding as to which Indemnitee notifies the Company of the commencement thereof, the Company will be entitled to
participate in the Proceeding at its own expense and except as otherwise provided below, to the extent the Company so wishes, it may assume the defense thereof with counsel
reasonably satisfactory to Indemnitee. After notice from the Company to Indemnitee of its election to assume the defense of any Proceeding, the Company will not be liable to
Indemnitee under this Agreement or otherwise for any Expenses subsequently incurred by Indemnitee in connection with the defense of such Proceeding other than reasonable
costs of investigation or as otherwise provided below. Indemnitee shall have the right to employ his own counsel in such Proceeding, but all Expenses related thereto incurred
after notice from the Company of its assumption of the defense shall be at Indemnitee's expense unless: (i) the employment of counsel by Indemnitee has been authorized by
the Company; (ii) Indemnitee has reasonably determined that there may be a conflict of interest between Indemnitee and the Company in the defense of the Proceeding, after a
Change in Control (other than a Change in Control approved by a majority of the directors on the Board who were directors immediately prior to such Change in Control); (iii)
the employment of counsel by Indemnitee has been approved by the Independent Counsel; or (iv) the Company shall not in fact have employed counsel to assume the defense
of such Proceeding, in each of which case all Expenses of the Proceeding shall be borne by the Company. The Company shall not be entitled to assume the defense of any
Proceeding brought by or on behalf of the Company or as to which Indemnitee shall have made the determination provided for in (ii) above.

(c) Settlement of Claims. The Company shall not be liable to indemnify Indemnitee under this Agreement or otherwise for any amounts paid in settlement
of any Proceeding effected without the Company's written consent, provided, however, that if a Change in Control has occurred (other than a Change in Control approved by a
majority of the directors on the Board who were directors immediately prior to such Change in Control), the Company shall be liable for indemnification of Indemnitee for
amounts paid in settlement if the Independent Counsel has approved the settlement. The Company shall not settle any Proceeding in any manner that would impose any penalty
or limitation on Indemnitee without Indemnitee's written consent. Neither the Company nor the Indemnitee will unreasonably withhold their consent to any proposed
settlement. The Company shall not be liable to indemnify the Indemnitee under this Agreement with regard to any judicial award if the Company was not given a reasonable
and timely opportunity, at its expense, to participate in the defense of such action; the Company's liability hereunder shall not be excused if participation in the Proceeding by
the Company was barred by this Agreement.

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7. Establishment of Trust. In the event of a Change in Control (other than a Change in Control approved by a majority of the directors on the Board who were

directors immediately prior to such Change in Control) the Company shall, upon written request by Indemnitee, create a Trust for the benefit of the Indemnitee and from time to
time upon written request of Indemnitee shall fund the Trust in an amount sufficient to satisfy any and all Expenses reasonably anticipated at the time of each such request to be
incurred in connection with investigating, preparing for, participating in, and/or defending any Proceeding relating to an Indemnifiable Event. The amount or amounts to be
deposited in the Trust pursuant to the foregoing funding obligation shall be determined by the Reviewing Party. The terms of the Trust shall provide that: (i) the Trust shall not
be revoked or the principal thereof invaded, without the written consent of the Indemnitee; (ii) the Trustee shall advance, within ten business days of a request by the
Indemnitee, any and all Expenses to the Indemnitee (and the Indemnitee hereby agrees to reimburse the Trust under the same circumstances for which the Indemnitee would be
required to reimburse the Company under Section 2(c) of this Agreement); (iii) the Trust shall continue to be funded by the Company in accordance with the funding obligation
set forth above; (iv) the Trustee shall promptly pay to the Indemnitee all amounts for which the Indemnitee shall be entitled to indemnification pursuant to this Agreement or
otherwise; and (v) all unexpended funds in the Trust shall revert to the Company upon a final determination by the Reviewing Party or a court of competent jurisdiction, as the
case may be, that the Indemnitee has been fully indemnified under the terms of this Agreement. The Trustee shall be chosen by the Indemnitee. Nothing in this Section 7 shall
relieve the Company of any of its obligations under this Agreement. All income earned on the assets held in the Trust shall be reported as income by the Company for federal,
state, local, and foreign tax purposes. The Company shall pay all costs of establishing and maintaining the Trust and shall indemnify the Trustee against any and all expenses
(including attorneys' fees), claims, liabilities, loss, and damages arising out of or relating to this Agreement or the establishment and maintenance of the Trust.

8. Non-Exclusivity. The rights of Indemnitee hereunder shall be in addition to any other rights Indemnitee may have under the Company's Articles of Incorporation,

Bylaws, applicable law, or otherwise. To the extent that a change in applicable law (whether by statute or judicial decision) permits greater indemnification by agreement than
would be afforded currently under the Company's Articles of Incorporation, Bylaws, applicable law, or this Agreement, it is the intent of the parties that Indemnitee enjoy by
this Agreement the greater benefits so afforded by such change.

9. Liability Insurance. To the extent the Company maintains an insurance policy or policies providing directors' and officers' liability insurance, Indemnitee shall be

covered by such policy or policies, in accordance with its or their terms, to the maximum extent of the coverage available for any Company director or officer.

10. Period of Limitations. No legal action shall be brought and no cause of action shall be asserted by or on behalf of the Company or any affiliate of the Company

against Indemnitee, Indemnitee's spouse, heirs, executors, or personal or legal representatives after the expiration of two (2) years from the date of accrual of such cause of
action, or such longer period as may be required by state law under the circumstances. Any claim or cause of action of the Company or its affiliate shall be extinguished and
deemed released unless asserted by the timely filing of a legal action within such period; provided, however, that if any shorter period of limitations is otherwise applicable to
any such cause of action the shorter period shall govern.

11. Amendment of this Agreement. No supplement, modification, or amendment of this Agreement shall be binding unless executed in writing by both of the parties

hereto. No waiver of any of the provisions of this Agreement shall be binding unless in the form of a writing signed by the party against whom enforcement of the waiver is
sought, and no such waiver shall operate as a waiver of any other provisions hereof (whether or not similar), nor shall such waiver constitute a continuing waiver. Except as
specifically provided herein, no failure to exercise or any delay in exercising any right or remedy hereunder shall constitute a waiver thereof.

12. Subrogation. In the event of payment under this Agreement, the Company shall be subrogated to the extent of such payment to all of the rights of recovery of

Indemnitee, who shall execute all papers required and shall do everything that may be necessary to secure such rights, including the execution of such documents necessary to
enable the Company effectively to bring suit to enforce such rights.

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13. No Duplication of Payments. The Company shall not be liable under this Agreement to make any payment in connection with any claim made against

Indemnitee to the extent Indemnitee has otherwise received payment (under any insurance policy, Bylaw, or otherwise) of the amounts otherwise Indemnifiable hereunder.

14. Binding Effect. This Agreement shall be binding upon and inure to the benefit of and be enforceable by the parties hereto and their respective successors

(including any direct or indirect successor by purchase, merger, consolidation, or otherwise to all or substantially all of the business and/or assets of the Company), assigns,
spouses, heirs, and personal and legal representatives. The Company shall require and cause any successor (whether direct or indirect by purchase, merger, consolidation, or
otherwise) to all, substantially all, or a substantial part, of the business and/or assets of the Company, by written agreement in form and substance satisfactory to Indemnitee,
expressly to assume and agree to perform this Agreement in the same manner and to the same extent that the Company would be required to perform if no such succession had
taken place. The indemnification provided under this Agreement shall continue as to Indemnitee for any action taken or not taken while serving in an indemnified capacity
pertaining to an Indemnifiable Event even though he may have ceased to serve in such capacity at the time of any Proceeding.

15. Severability. If any provision (or portion thereof) of this Agreement shall be held by a court of competent jurisdiction to be invalid, void, or otherwise

unenforceable, the remaining provisions shall remain enforceable to the fullest extent permitted by law. Furthermore, to the fullest extent possible, the provisions of this
Agreement (including, without limitation, each portion of this Agreement containing any provision held to be invalid, void, or otherwise unenforceable, that is not itself
invalid, void, or unenforceable) shall be construed so as to give effect to the intent manifested by the provision held invalid, void, or unenforceable.

16. Governing Law. This Agreement shall be governed by and construed and enforced in accordance with the laws of the State of California applicable to contracts

made and to be performed in such State without giving effect to the principles of conflicts of laws.

17. Notices. All notices, demands, and other communications required or permitted hereunder shall be made in writing and shall be deemed to have been duly given

if delivered by hand, against receipt, or mailed, postage prepaid, certified or registered mail, return receipt requested, and addressed to the Company at:

VistaGen Therapeutics, Inc.
343 Allerton Avenue
South San Francisco, CA 94080 Attention: CEO

and to Indemnitee at:

Mark A. McPartland
405 Marsh Oaks Drive
Wilmington, NC 28411

Notice of change of address shall be effective only when done in accordance with this Section. All notices complying with this Section shall be deemed to have been

received on the date of delivery or on the third business day after mailing.

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IN WITNESS WHEREOF, the parties hereto have duly executed and delivered this Agreement as of the day specified above.

VISTAGEN THERAPEUTICS, INC.

By: /s/ Shawn Singh
Name: Shawn Singh
Title: Chief Executive Officer

MARK A. MCPARTLAND

/s/ Mark A. McPartland
Indemnitee

-7-

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
MASTER SERVICES AGREEMENT
(For All CRO Services)

  Exhibit 10.138

 This Master Services Agreement (this “Agreement”) is made as of the 11th day of July, 2017 (the “Effective Date”) by and between Cato Research Ltd.,  a  North  Carolina
corporation headquartered at 4364 South Alston Avenue, Durham, North Carolina, USA 27713 (“CRL”), and VistaGen Therapeutics, Inc., a Nevada corporation headquartered
at  343 Allerton Avenue,  South  San  Francisco,  California  94080,  USA  (“VistaGen”).  Each  of  CRL  and  VistaGen  may  be  referred  to  herein  separately  as  a  “Party”  and
collectively  as  the  “Parties.” As  used  in  this Agreement,  “Affiliate(s)”  means  any  corporation,  firm,  partnership,  or  other  entity  which  controls,  is  controlled  by  or  is  under
common control with a Party. For the purpose of this definition, “control” shall mean the power to direct, or cause the direction of, the management and policies of an entity
through  the  ownership,  directly  or  indirectly,  of  at  least  fifty  percent  (50%)  of  the  voting  share  capital  of  such  entity  or  any  other  comparable  equity,  by  contract,  or  by
ownership interest.

WHEREAS, VistaGen is engaged in the evaluation, development, commercialization and/or marketing of biologics, pharmaceutical agents, medical devices and/or

other life sciences technologies (collectively, “Products”); and

WHEREAS,  CRL  is  an  independent  contract  research  and  development  organization  (“CRO”)  providing  a  broad  range  of  services  relating  to  the  evaluation,

development, commercialization and marketing of new biologics, pharmaceutical agents, medical devices and/or other life sciences technologies; and

WHEREAS, VistaGen wishes to retain CRL, and CRL wishes to be retained by VistaGen, to assist VistaGen with certain aspects of the evaluation, development,
commercialization or marketing of VistaGen Products or otherwise to provide certain regulatory or other strategic consulting services as specified by VistaGen from time to
time; and

 NOW, THEREFORE, in consideration of the foregoing premises and the promises, benefits, rights, and obligations set forth below, the Parties agree as follows:

1.

Work  Orders 
Services.

for  CRO

1.1

1.2

CRL  shall  provide  CRO  services  to  VistaGen,  as  requested  by  VistaGen  from  time  to  time  in  accordance  with  the  terms  of  this Agreement  (the  “CRO
Services”). Requested CRO Services may include any area of services customarily undertaken by CRL, including without limitation the areas of nonclinical
development, clinical development, regulatory affairs, medical monitoring and pharmacovigilance or safety services.

Whenever VistaGen requests CRL to perform CRO Services, and CRL wishes to perform CRO Services requested by VistaGen, CRL shall prepare a Work
Order, in a form acceptable to both Parties and containing, at a minimum, the CRO Services to be performed and the compensation to be paid by VistaGen for
the CRO Services covered by the Work Order. It may also include any other requirements or obligations agreed upon by the Parties and not set forth herein.
Each  such  Work  Order,  to  be  binding  an  effective  on  the  Parties,  shall  be  executed  and  delivered  by  the  Parties   before  any  CRO  Services  are  rendered
thereunder.  If  CRL  submits  a  project  proposal  for  CRO  Services  to  VistaGen,  and  such  project  proposal  is  executed  and  delivered  by  both  Parties  with  the
expressed intent reflected in writing therein that it be performed as a Work Order, then it shall be deemed a Work Order for purposes of this Agreement. Each
Work  Order  shall  be  deemed  a  part  of  this Agreement  and  incorporated  into  it,  but  no  Work  Order  shall  be  deemed  part  of  another  Work  Order,  unless
specifically so stated in the applicable Work Order executed and delivered by both Parties.

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1.3

1.4

1.5

1.6

1.7

CRL shall not be obligated to perform, and VistaGen shall not be obligated to pay for, the CRO Services described in any proposal, draft work order or similar
document unless and until such time as the Work Order related to such CRO Services has been signed and delivered by both Parties.

If the terms of a Work Order conflict with those of this Agreement, then the terms of this Agreement shall control unless otherwise specifically stated in the
Work Order. If either Party sends a purchase order, confirmation, or similar form, then the terms of this Agreement and not those in such additional document
shall control; the Parties agree that any additional or different terms in such form, now or in the future, are void even if the form indicates that it shall control.

Unless a Work Order specifies to the contrary, CRL may subcontract some or all of its obligations under such Work Order to an Affiliate provided that such
Affiliate is bound by confidentiality obligations at least as protective of VistaGen’s confidential information as those in this Agreement. CRL shall be equally
responsible for the performance of such Affiliate as CRL would be if it performed such obligations itself. CRL may use individuals engaged as independent
contractors  to  perform  CRO  Services  hereunder  provided  that  CRL  remains  equally  liable  for  their  conduct  as  if  they  were  employees.  Except  for  such
individuals and Affiliates, CRL shall not subcontract any of its obligations under a Work Order to a third party without Vistagen’s consent.

If a Work Order is unclear, ambiguous, or permits different understandings of the CRO Services to be performed, the Parties shall use good faith efforts to
resolve such ambiguity in writing, it being understood that such resolution may result in an adjustment to the budgeted costs.

If the scope or definition of the CRO Services in a Work Order changes, including without limitation a change in the number of units of any CRO Services as
specified in the budget for the applicable Work Order, and the additional cost of such additional CRO Services does not exceed the lesser of (x) ten percent
(10%)  of  the  budget  for  the  CRO  Services  as  set  forth  in  the  applicable  Work  Order  or  (y)  $50,000,  CRL  will  notify  VistaGen  of  the  changes  and,  upon
VistaGen’s  written  authorization  (which  may  be  by  email),  will  commence  performance  of  the  additional  CRO  Services  without  a  formal  Work  Order
amendment. CRL will thereafter formalize the changes by providing to VistaGen a formal amendment to the Work Order reflecting the authorized changes. The
Parties  shall  then  timely  sign  such  amendment,  but  Vistagen  shall  nevertheless  be  obligated  to  pay  for  the  changed  CRO  Services  based  on  the  previously-
given  authorization  to  proceed  even  if  Vistagen  does  not  sign  the  relevant  amendment.  With  respect  to  changes  requested  in  excess  of  the  lesser  of  (x)  ten
percent (10%) of the applicable budget or (y) $50,000, neither party shall be obligated unless and until a prior written Work Order amendment is signed and
delivered by the Parties.

1.8

The parties acknowledge that any change in regulations to which the CRO Services are subject may require an amendment to the relevant Work Order, and that
some changes to regulations may render the underlying project economically or practically infeasible and, in such instances, the parties will work together to
negotiate an appropriate amendment to the Work Order to wind-down the CRO Services efficiently.

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1.9

Unless specifically included in an applicable Work Order, CRL will not collect or report to VistaGen any payments made which may be reportable under the
Physicians Payment Sunshine Act. If collection and reporting obligations are specified in an applicable Work Order, CRL shall report the required information
based  no  payments  made  by  CRL,  and  CRL  shall  have  no  obligations  with  respect  to  any  payments  made  by  VistaGen;  VistaGen  shall  aggregate  its  own
information from all sources and make its report to the Centers for Medicare and Medicaid Services.

1.10

Subject  to  the  terms  of  Section  1.7  or  1.8,  a  Work  Order  may  only  be  amended  in  writing  with  the  signature  of  both
Parties.

2.

Performance 
Services.

of 

CRO

2.1

2.2

CRL shall use commercially reasonable efforts to perform the CRO Services in accordance with the specifications, instructions, and guidelines in each Work
Order and this Agreement in all material respects. CRL shall use its own protocols in the performance of CRO Services unless specified to the contrary in the
applicable Work Order.

All CRO Services performed by CRL shall be performed in conformity with all applicable international, federal, state and local laws and regulations, including
without  limitation,  as  applicable,  current  Good  Laboratory  Practices,  Good  Manufacturing  Practices,  Good  Clinical  Practices,  ICH  Guidelines,  and  all
applicable FDA regulations.

3.

VistaGen Obligations.  VistaGen  shall  undertake  the  following  obligations  with  respect  to  the  performance  of  this Agreement,  in  addition  to  any  other  obligations
outlined herein or in the applicable Work Order.

3.1

3.2

3.3

3.4

VistaGen shall use commercially reasonable efforts to deliver all information and materials reasonably required for CRL’s performance of CRO Services in
accordance with mutually agreed upon timelines.

VistaGen  shall  immediately  inform  CRL  of  any  safety  concerns  or  serious  adverse  events  related  to  a  Product  that  is  the  subject  of  the  CRO
Services.

VistaGen shall use commercially reasonable efforts to not take any actions or participate in any activities that are intended to, or can be reasonably expected to,
disrupt or interfere with CRL’s obligations under this Agreement.

CRL  believes  all  data,  information  and  analysis  provided  and  all  reports  generated  as  Deliverables  (as  defined  below)  will  be  accurate  and  reliable,  but
VistaGen is ultimately and solely responsible for its use of the Deliverables or other matter or information produced or provided under this Agreement.

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4.

Compensation.

4.1

4.2

4.3

4.4

4.5

VistaGen shall pay CRL for the CRO Services as specified in the Work Order governing such CRO Services. If travel time is not included in the applicable unit
price  on  the  Work  Order,  then  it  shall  be  billed  as  out  of  scope  work  time,  with  the  understanding  that,  to  the  extent  practical,  travel  time  shall  be  used  to
perform CRO Services for VistaGen.

Unless otherwise specified in the applicable Work Order, VistaGen shall reimburse CRL for out-of-pocket expenses reasonably incurred in performance of the
CRO  Services  under  this Agreement  including,  but  not  limited  to,  third-party  fees  and  expenses,  passthrough  expenses,  telephone,  facsimile,  messenger,
postage and other communication costs, document copying and retrieval, on-site and off-site storage fees, computer research fees and filing fees, reasonable
transportation, lodging, and meal expenses for travel to sites away from CRL’s office, and travel between CRL offices (collectively, “Expenses”); provided
however, that advanced written approval is required from VistaGen for any Expense which exceeds five hundred dollars ($500).

Invoices for CRO Services and Expenses shall be in United States dollars unless the Work Order related to such CRO Services or Expenses specifies a different
currency shall be sent monthly, and shall itemize the CRO Services performed and Expenses incurred. VistaGen shall pay all invoices in the currency of the
invoice within thirty (30) days of the date of the invoice via wire transfer, per wire instructions which shall be provided by CRL. In addition to paying the
amount due with respect to CRO Services and Expenses, VistaGen shall also make additional payments for any federal, state, county, local or governmental
taxes, duties, excise taxes, now or hereafter applied including sales tax, value added tax, or any similar tax. No deduction shall be made from the amount due or
paid as a result of any taxes or withholding that may occur by governments with respect to payments made to CRL from outside the United States or as a result
of any taxes paid by VistaGen. Except as specified in Section 4.4, payment shall be in the full amount specified on the invoice.

If VistaGen disputes the amount due on any invoice, then VistaGen must notify CRL of such dispute before the payment due date and pay such amount as is
undisputed  by  the  payment  due  date.  Both  Parties  shall  act  in  good  faith  to  promptly  resolve  such  dispute,  and  upon  resolution  of  the  dispute,  any  amount
remaining due shall be paid within fifteen (15) days after the resolution.

If all or any undisputed portion of an invoice remains unpaid when due, then such unpaid portion shall accrue a finance charge of 1.25% per month from the
date of the invoice until paid. For the avoidance of confusion, in calculating finance charges related to disputed invoices, an invoice (or portions thereof, as
applicable) shall be deemed to have been due such that finance charges begin to accrue: (a) thirty (30) days after the date of the original invoice if the invoice is
determined to have been correct; or (b) if the dispute relates to incomplete or incorrect work then fifteen (15) days after the date on which it is determined all
obligations for payment of each disputed amount were met under the Work Order such that payment of such amount should have been made. VistaGen shall
reimburse  CRL  on  demand  for  all  reasonable  out-of-pocket  costs  and  expenses  CRL  incurs  in  enforcing  payment  of  an  overdue  invoice,  including,  without
limitation, attorneys’ fees and expenses. Payments received from VistaGen by CRL on an overdue invoice shall be first applied to costs of collection, then to
accrued interest, and then to the unpaid balance of the invoice. CRL may, in its discretion, allocate collection costs among any overdue invoices and apply any
payments received against any overdue invoices.

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4.6

Except  as  otherwise  set  forth  herein,  any  and  all  payments  made  hereunder  are
nonrefundable.

5.

Term and Termination.

5.1

5.2

5.3

5.4

5.5

5.6

The term of this Agreement shall be five (5) years from the Effective Date and it shall automatically renew for additional one (1) year terms unless, at least
sixty  (60)  days  before  the  expiration  of  any  term,  a  Party  gives  written  notice  to  the  other  Party  that  it  does  not  want  to  renew  this Agreement;  provided
however, that if the term of a Work Order extends beyond the term of this Agreement, then this Agreement will continue in effect as to that Work Order (only)
until the completion or termination of such Work Order and all wind-down CRO Services related to such Work Order.

Either Party may terminate a Work Order upon the other Party’s material default under this Agreement with respect to such Work Order, provided that the
terminating Party has given the defaulting Party not less than thirty (30) days’ prior written notice of such default and the defaulting Party has not cured such
default by the end of the notice period. Termination of a Work Order based on an uncured default does not give rise to the right to terminate any other Work
Order or this Agreement.

Except with respect to Work Orders for clinical trials, either Party may terminate a Work Order at any time upon no less than thirty (30) days’ prior written
notice to the other Party. With respect to Work Orders for clinical trials, only VistaGen may terminate at any time upon no less than sixty (60) days’ prior
written notice to CRL.

Upon  early  termination  of  a  Work  Order,  CRL  shall  invoice  VistaGen  and  VistaGen  shall  pay  CRL  for  all  CRO  Services  rendered  and  Expenses  incurred
through the date of termination in accordance with Section 4 above. CRL’s compensation under any Work Order being paid on a fixed-fee basis or on any
payment  schedule  which  is  other  than  either  time-and  materials  or  a  unit-based  budget,  the  Work  Order  shall  be  converted  to  a  time-and-materials  basis  in
accordance with CRL’s current rates, and CRL shall be paid for all CRO Services performed and Expenses incurred through the date of termination.

If VistaGen terminates a Work Order under Section 5.3 or CRL terminates a Work Order under Section 5.2, then, in addition to payments made under Section
5.4, then (a) VistaGen shall reimburse CRL for any and all non-cancelable obligations of CRL to third parties related to the terminated Work Order and (b) if
the terminated Work Order relates to a clinical trial, then VistaGen shall pay CRL the Termination Fee (if any) for such Work Order, as described in Section
5.6.

The  Termination  Fee  for  a  work  order  shall  be  computed  as
follows:

The Termination Fee shall be twenty-five percent (25%) of the estimated remaining unbilled amounts for CRO Services (but excluding any pass-through costs or or Expenses)
under the Work Order if either:

(a)

(b)

the clinical trial to which the Work Order relates is terminated either in anticipation of or following a Change of Control (as defined below),
or

Vistagen does not undertake a new clinical trial within three (3) months of the date of termination where, in connection with such trial, Vistagen enters into a
new Work Order with CRL providing for similar services (in description, price and quantity) as specified in the original terminated Work Order.

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As  used  above,  a  “Change  of  Control”  means  any  event  or  series  of  events  by  which  (a)  any  person  or  group  of  related  persons  acquires  shares  representing  fifty
percent  (50%)  of  the  outstanding  voting  power  of  VistaGen  (b)  any  merger,  share  exchange  or  simiar  transaction  of  VistaGen  with  another  entity  in  which  the  holders  of
VistaGen shares representing the majority of the voting power of VistaGen (as measured before the relevant events) do not hold shares representing the majority of the voting
power of the resulting entity (as measured after the resulting events); or (c) a sale of the assets of VistaGen to which the Work Order relates.

The Termination Fee shall be $0 if neither (a) nor (b), above, apply.

5.7

5.8

5.9

Upon early termination of a Work Order, CRL shall inform VistaGen of the extent to which it expects work in progress to be completed as of the termination
date and CRL shall (unless otherwise instructed by VistaGen) take steps to wind-down work in progress in an orderly fashion. In addition to all other amounts
payable  to  CRL,  VistaGen  shall  pay  CRL  for  such  winddown  CRO  Services  on  a  time-and-materials  basis  at  CRL’s  current  rates  for  all  reasonable  and
customary wind-down CRO Services performed and Expenses incurred by CRL. If VistaGen instructs CRL not to complete such wind-down CRO Services,
CRL shall, upon notification of the termination of the Work Order, promptly cease providing CRO Services and incurring costs to the extent practicable. In any
such event, VistaGen shall be deemed to have released CRL from all legal liability and to have covenanted not to sue CRL on any claims related to failure to
perform and the failure to complete reasonable and customary wind-down CRO Services.

In addition to termination of this Agreement under Sections 5.1-5.3, at any time CRO Services under all Work Orders have been completed or terminated such
that there is no request for CRO Services pending, either Party may terminate this Agreement by giving written notice of termination to the other Party.

The remedies set forth in this Section 5 are not meant to limit any additional remedies available to a Party for breach of this Agreement by the other
Party.

6.

Suspension of CRO Services.

6.1

If VistaGen should, for any reason, suspend the CRO Services to be provided under any Work Order for a period of thirty (30) days, then at the end of such
thirty (30) day period CRL may invoice VistaGen and VistaGen shall pay for all CRO Services which have been performed through the date of suspension
which have not been invoiced previously. For any Work Order being paid on a unit-based budget basis, payment shall be made for each partially completed
unit on a time-and-materials basis related to the CRO Services undertaken for each such unit. For any Work Order being paid on a fixed-fee basis or on any
payment schedule which is other than either time-and-materials or a unit-based budget, all CRO Services performed shall be converted to a time-and-materials
basis in accordance with CRL’s current rates and CRL shall be paid for all CRO Services performed and Expenses incurred through the date of suspension.

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6.2

6.3

6.4

6.5

6.6

CRL may in its sole discretion suspend its performance of CRO Services if an undisputed invoice is sixty (60) days or more overdue, and CRL may refrain
from resuming performance of CRO Services until all overdue undisputed invoices have been paid in full. If CRL should suspend the CRO Services pursuant to
this Section 6.2, and in the further event that the suspension shall remain in place for a period of at least thirty (30) days, then at the end of such 30-day period,
CRL  may  invoice  VistaGen  and  VistaGen  shall  pay  for  all  CRO  Services  which  have  been  performed  through  the  date  of  suspension  which  have  not  been
invoiced previously in the same manner as set forth in Section 6.1.

Any CRO Services performed related to a Work Order, during a period when it is under suspension shall be invoiced on a time-and-materials basis at CRLS’s
then-current rates.

Upon suspension of CRO Services, CRL may reassign its personnel assigned to the suspended Work Order unless a retainer fee in an amount to be agreed upon
by the Parties at such time is paid in advance of each month during which VistaGen wishes to reserve the assigned personnel. Payment of such retainer will
ensure CRL will not reassign the designated personnel such that they are unavailable to provide the CRO Services upon resumption of CRO Services.

If any suspension initiated continues for a period of ninety (90) days, then unless either a retainer is being paid pursuant to Section 6.4 or the Parties agree to the
contrary, at the end of the 90-day period the Work Order shall be deemed terminated either by VistaGen without cause or by CRL with cause, as applicable,
such that the terms of Section 5.5 shall apply.

The resumption of CRO Services after any suspension shall be subject to any additional costs which may be incurred as a result of the Work Order having been
suspended  and  then  restarted,  including  without  limitation  the  training  of  new  personnel  if  the  retainer  has  not  been  paid  for  personnel  to  remain  with  the
project.

7.

Confidential Information.

7.1

7.2

For purposes of this Section, the Party disclosing Confidential Information is known as “Disclosing Party” and the Party receiving information is known as
“Receiving Party.” As applied to CRL, each of these terms shall include CRL and any applicable Affiliates within the definition.

"Confidential Information" means: (i) all information furnished by the Disclosing Party to the Receiving Party in tangible, visible, electronic or verbal form or
by  observation  or  by  any  other  means,  including,  but  not  limited  to,  business  plans,  protocols,  processes,  samples,  formulae,  chemical  entities,  compounds,
mixtures, prospective and current products, clinical data and analyses, test results, toxicology and pharmacology information, study procedures and manuals,
pharmacy  dispensing  instructions,  case  report  forms  and  their  content,  statistical  reports,  project  management  and  staffing,  manufacturing  processes,
nonpublished  patent  applications,  financial  data,  forecasts  and  projections,  proprietary  software  and  database  structures,  research,  “know-how,”  technology
under development, marketing information, agreements with or proprietary information of third parties, licensors and licensees and strategic partners, regardless
of  whether  such  disclosures  are  marked  or  otherwise  designated  as  “Confidential”;  and  (ii)  the  terms  and  conditions  of  this Agreement,  all  proposals  and
requests for proposals (including those submitted to the Receiving Party prior to the date of this Agreement and marked as Confidential at the time of delivery),
and the existence of the discussions between the Parties to which this Agreement pertains.

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7.3

No information shall be within the above definition of Confidential Information  if
it:

(a) is generally known to the public at the time the Disclosing Party discloses it to any Receiving Party;

on the part of such Receiving Party;

(b) becomes generally known to the public subsequent to the time of the Disclosing Party's disclosure to any Receiving Party without any fault or disclosure

Party's written records;

(c) was known to any Receiving Party prior to the disclosure by the Disclosing Party, free of any obligation of confidence, as evidenced by such Receiving

(d) is independently developed by such Receiving Party without reference to or reliance on the Confidential Information as evidenced by Receiving Party’s

written records;

Agreement; or

(e)  is,  to  such  Receiving  Party’s  knowledge,  rightfully  communicated  to  it  free  of  any  obligation  of  confidence  by  anyone  who  is  not  a  Party  to  this

(f) is communicated by the Disclosing Party free of any obligation of confidence to anyone that is not a Party to this Agreement.

By way of example and not limitation, information is not generally known to the public if it is not available without considerable research or if it can be primarily located in
cached memories of materials otherwise deleted from internet sources. Notwithstanding the foregoing, specific Confidential Information shall not be deemed to be within any of
the foregoing exclusions  merely  because  it  is  within  the  scope  of  more  general  information  within  one  or  more  of  the  exclusions.  Further,  any  combination  of  Confidential
Information (whether or not combined with nonconfidential information) shall not be deemed to be within the above exceptions merely because one or more individual items of
Confidential Information are within the above exceptions. In furtherance but not limitation of the preceding sentence, any combination of items of Confidential Information shall
not be deemed to fall within the foregoing exclusions merely because any or all of the items are published or otherwise in the rightful possession of the Receiving Party unless
the combination itself and the principle of its use are published or otherwise in the rightful possession of the Receiving Party.

7.4

Receiving  Party  shall  neither  use  nor  reproduce  Disclosing  Party’s  Confidential  Information  except  as  necessary  for:  (a)  negotiations,  discussions  and
consultations with the personnel or authorized representatives of Disclosing Party; or (b) for the purpose of performing its obligations under this Agreement.
Upon completion of the obligations under this Agreement that use the Confidential Information, or upon termination of this Agreement, Receiving Party shall,
when requested by Disclosing Party in writing, promptly return to Disclosing Party all of the Confidential Information provided by Disclosing Party, except that
Receiving  Party  may  retain  one  (1)  copy  for  recordkeeping  purposes  and  Receiving  Party  shall  not  be  required  to  remove  or  destroy  any  Confidential
Information contained on backup media as a result of systematic backups of Receiving Party’s computer system, provided that Receiving Party shall not access
such backup media for the purpose of recovering the Confidential Information.

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7.5

7.6

7.7

7.8

Receiving Party shall not disclose, without the prior written consent of Disclosing Party, any of Disclosing Party’s Confidential Information to any third party
other than Receiving Party’s, and its Affiliates’, directors, officers, employees, agents and consultants, hospital or institution authorities, Institutional Review
Board members, clinical investigators, and others who are involved in fulfilling Receiving Party’s obligations under this Agreement and who, in each case, (a)
need  to  know  such  information  for  the  purposes  of  performing  such  obligations  and  (b)  are  bound  by  obligations  of  confidentiality  and  non-use  at  least  as
restrictive  as  those  set  forth  herein.  With  respect  to  the  obligation  in  7.5(b)  it  shall  be  deemed  met  as  to  disclosures  by  CRL  of  VistaGen’s  confidential
information if VistaGen has in place a nondisclosure agreement with the third party related to VistaGen’s Confidential Information. Receiving Party shall take
commercially reasonable steps to prevent the disclosure or use of any such Confidential Information by Receiving Party’s, and its Affiliates’, directors, officers,
employees, agents or consultants except as provided in this Agreement.

If any Disclosing Party’s Confidential Information is required to be disclosed by Receiving Party to any government or regulatory authority or court entitled by
law  to  disclosure  of  the  same,  Receiving  Party  shall  not,  unless  required  by  law,  order,  regulation  or  ruling,  disclose  Confidential  Information  until  the
Disclosing Party has first (a) received prompt written notice of such requirement to disclose and (b) had an adequate opportunity to obtain a protective order or
other reliable assurance that confidential treatment will be accorded to the Confidential Information required to be disclosed. The Receiving Party shall, at the
expense  of  the  Disclosing  Party,  provide  the  Disclosing  Party  with  any  reasonable  assistance  requested,  and  shall  not  oppose  reasonable  actions  by  the
Disclosing Party to assure confidential treatment. If the Disclosing Party is unable to obtain such protective order or other appropriate remedy, the Receiving
Party and its Representatives will furnish only that portion of the Confidential Information which it is legally required to furnish. Any disclosure of Confidential
Information pursuant to this Section 7.6 shall not affect or lessen the Receiving Party’s obligations hereunder.

For  purposes  of  this Agreement,  the  Parties  hereby  acknowledge  and  agree  that,  subject  to  the  exceptions  set  forth  in  Section  7.3,  this Agreement  shall  be
considered VistaGen’s Confidential Information; provided however, that either Party may disclose the terms of this Agreement to advisors, investors and others
on  a  need-to-know  basis  under  circumstances  that  reasonably  ensure  the  confidentiality,  nondisclosure  and  nonuse  thereof.  Notwithstanding  the  foregoing,
VistaGen may disclose the existence of this Agreement in its sole discretion.

Receiving Party’s obligations under this Section 7 shall terminate with respect to any Confidential Information of Disclosing Party five (5) years after the date
of disclosure.

8.

Protected  Health  Information.  The  Parties  recognize  that  the  Federal  Health  Insurance  Portability  and Accountability Act  of  1996  and  implementing  regulations
(“HIPAA”) require written confidentiality agreements to protect the privacy and security of protected health information (as defined under HIPAA) that may be acquired
in  the  course  of  performing  this Agreement.  The  Parties  agree  to  comply  with  HIPAA  and  other  applicable  laws  and  governmental  regulations  governing  protected
confidential health information. Under no circumstances shall VistaGen deliver to CRL any social security or other identification number issued to subjects/patients by
any governmental agency as part of the data delivered to CRL under any Work Order.

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9.

Ownership.

9.1

9.2

VistaGen shall own all right, title, and interest in and to all data, information, improvements, discoveries, inventions, printed materials, and other work product
contained the Deliverable. To the extent not covered by the preceding sentence, and except as limited by Section 9.2, all copyrights, patents, trade secrets and
other intellectual property rights associated with any ideas, conepts, techniques, inventions, processes or works of authorship included in the Deliverable shall
be treated in the same manner as the deliverable and as specified in the previous sentence.. Upon request of VistaGen and at VistaGen's expense, CRL shall take
such  further  actions,  including  execution  and  delivery  of  instruments  of  conveyance  necessary  to  obtain  legal  protection  in  the  United  States  and  foreign
countries for such Deliverable and for the purpose of vesting title thereto in VistaGen. As used herein, “Deliverable” shall mean reports, information or other
matters which are physically delivered (whether in hard copy or electronically) to VistaGen in accordance with the terms of the Work Order. To the extent the
Work Order requires CRL to undertake general consulting services pursuant to which CRL provides generic explanations or information, only such part of any
deliverable which contains VistaGen-specific subject matter shall be deemed a Deliverable subject to the terms of this Section 9.1

Notwithstanding  the  foregoing  Section  9.1,  VistaGen  acknowledges  that  within  the  scope  of  the  business  practices  of  CRL  and  its Affiliates,  they  possess
certain  inventions,  processes,  know-how,  trade  secrets,  improvements,  other  intellectual  property  and  business  assets,  including  forms,  templates,  analytical
methods,  protocols,  procedures  and  techniques,  computer  technical  expertise  and  software,  independently  developed  or  otherwise  owned  by  CRL  and  its
Affiliates and not specifically related to the Deliverables. In addition, during the course of performing or incidental to the CRO Services, CRL or its Affiliates
may develop forms, templates, analytical methods, protocols, procedures and techniques, functions, computer code, database structures and other property that
are not specific to the general functionality of the Deliverables, not specific to any Product unique to VistaGen, and which does not in its generic form rely on
or otherwise incorporate any Confidential Information of VistaGen (collectively, the “Cato Property”). VistaGen and CRL agree that any Cato Property used,
improved or modified by CRL or its Affiliates under or during the term of this Agreement shall be deemed Cato Property and owned solely by CRL or its
Affiliates. If any Cato Property is incorporated into the Deliverables, then CRL hereby grants to VistaGen a fully paid-up, non-exclusive, perpetual worldwide
license to use such Cato Property (without representation or warranty), to the extent reasonably necessary to use such Deliverables and to transfer rights to the
VistaGen products or programs to which this Agreement relates.

9.3

CRL and its Affiliates shall be free to use and employ the general skills, knowhow, and expertise of their employees, and to use, disclose, and employ any
generalized  ideas,  concepts,  know-how,  methods,  techniques,  or  skills  gained  or  learned  by  their  employees  and  consultants  during  the  course  of  any
assignment, so long as they acquire and apply such information without disclosure of any Confidential Information of VistaGen and without any unauthorized
use or disclosure of any Deliverable.

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10.

Representations and Warranties.

10.1

10.2

10.3

10.4

CRL represents and warrants that CRL has the experience, capability, personnel and resources necessary to perform CRO Services under this Agreement and
each Work Order in a commercially reasonable manner.

VistaGen represents and warrants that it has the ability to comply with and perform all financial obligations under this Agreement. VistaGen further represents
and warrants that it owns or otherwise has all necessary rights in and to the Product and all intellectual property rights therein (including without limitation the
patent rights in all Products) so as to permit use of the Product and such intellectual property by CRL as contemplated in each Work Order; no third party has
any right to prevent or to claim a payment is due from CRL as a result of its use of any Product or of the intellectual property rights therein as contemplated in
any Work Order.

Each Party represents and warrants that (a) it has the corporate power and authority to enter into and perform its obligations under this Agreement and any
Work Order; and (b) entering into and performing this Agreement and any Work Order will not conflict with or result in a violation of any of the terms or
provisions, or constitute a default under any of its organizational documents, any mortgage, indenture, lease, contract or other agreement or instrument binding
upon  it  or  by  which  any  of  its  properties  are  bound,  or  any  permit,  concession,  franchise,  license,  judgment,  order,  decree,  statute,  law,  ordinance,  rule  or
regulation applicable to it or its properties.

Except as set forth in this Section 10, CRL makes no warranty, either express or implied, including without limitation the warranties of merchantability, fitness
for a particular purpose, title and non-infringement as to any matter, and further including but not limited to the CRO Services, results of CRO Services, any
Deliverables or any other matter or information produced or provided under this Agreement. Without limiting the foregoing, CRL does not warrant, guarantee,
or  make  any  warranty  regarding  the  use,  or  the  results  of  the  use,  of  the  Deliverable,  reports,  analyses,  documents,  memoranda  or  any  other  matter  or
information produced or provided under this Agreement.

11.

CRL Personnel.

11.1

CRL shall be responsible for all aspects of the labor relations of the personnel undertaking the CRO Services including, but not limited to, wages, benefits,
discipline, hiring, firing, promotions, pay raises, overtime, and job assignments. VistaGen shall have no power or authority in these areas. CRL shall ensure the
payment  of  all  contributions  and  taxes  imposed  by  any  federal  or  state  governmental  authority  with  respect  to  or  measured  by  wages,  salaries,  or  other
compensation paid to persons employed to undertake the CRO Services.

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11.2

VistaGen understands that the performance of CRO Services requires special skills, training and experience. VistaGen further understands that CRL and its
Affiliates  have  expended  considerable  sums  to  train  their  personnel  to  perform  the  CRO  Services  requested  by  VistaGen  from  time  to  time  under  this
Agreement,  and  CRL  will  give  VistaGen  access  to  experienced  and  highly  skilled  practitioners.  When  CRL  or  its  Affiliates  lose  personnel,  CRL  or  its
applicable Affiliate incurs significant expenses in hiring and training his or her replacement. Accordingly, during the term of this Agreement and for a period of
one (1) year after the termination or expiration of the last Work Order to terminate or expire under this Agreement, VistaGen agrees that it will not, without
CRL’s prior written permission, solicit for employment (directly or indirectly) or hire as an employee or independent contractor any employee or independent
contractor of CRL or its Affiliates who has participated in the performance of CRO Services under this Agreement. VistaGen acknowledges that any breach by
VistaGen of this Section 11.2 shall cause substantial damages to CRL which are difficult to calculate including, but not limited to, costs of hiring and training
replacement  personnel,  lost  revenue  and  damage  to  CRL’s  relationships  with  its  other  customers.  Correspondingly,  if  VistaGen  breaches  this  Section  11.2,
VistaGen agrees that it shall pay CRL liquidated damages in an amount equal to the first-year annual guaranteed compensation (including base salary and any
guaranteed bonus) of the hired person. ...

12.

Indemnification.

12.1

12.2

VistaGen  shall  indemnify,  defend  and  hold  harmless  each  CRL  Indemnified  Party  from  and  against  all  Losses  resulting  from,  related  to  or  (as  appropriate)
alleging  any  CRL  Indemnified  Conditions.  The  foregoing  indemnification  obligations  of  VistaGen  under  this  Section  12.1  shall  not  include  any  Losses
incurred by CRL when, and to the extent that, such Losses result from or are related to (a) the negligence, intentional misconduct or intentional omission of the
CRL  Indemnified  Party,  (b)  the  breach  of  this Agreement  by  CRL,  an Affiliate  of  CRL  or  any  other  person  for  whose  actions  CRL  is  liable  under  this
Agreement or applicable law, or (c) the violation by CRL, its directors, officers, employees or agents of any applicable law, regulation or other government
requirement where such violation was caused by the conduct of the relevant CRL Indemnified Party and where CRL is seeking indemnification due to such
breach.

CRL  shall  indemnify,  defend  and  hold  harmless  each  VistaGen  Indemnified  Party  from  and  against  all  Losses  resulting  from,  related  to  or  (as  appropriate)
alleging any VistaGen Indemnified Conditions. The foregoing indemnification obligations of CRL under this Section 12.2 shall not include any losses incurred
by VistaGen when, and to the extent that, such Losses result or are related to (a) the negligence, intentional misconduct or intentional omission of the VistaGen
Indemnified Party; (b) the breach of this Agreement by VistaGen, an affiliate of VistaGen, or any other person for whose actions VistaGen is liable under this
Agreement  or  applicable  law;  or  (c)  the  violation  by  VistaGen,  its  directors,  officers,  employees  or  agents,  of  any  applicable  law,  regulation  or  other
governmental requirement. Notwithstanding the foregoing, CRL shall not be liable for, and this Section 12.2 does not require CRL to provide indemnification
with respect to, the actions or omissions of any third party which CRL hires (excluding Affiliates of CRL) at VistaGen’s request to provide services hereunder..

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12.3

If an Indemnified Party receives notice of any claims for which the Indemnified Party wishes to seek indemnity under this Agreement, then the Indemnified
Party shall promptly provide prompt written notice of the claim no later than thirty (30) calendar days following its notice of the claim to the Party required to
provide indemnification by Section 12.1 or 12.2. The failure of an Indemnified Party to promptly provide such notice will not relieve the indemnifying Party of
any indemnification responsibility under this Section 12, except to the extent, if any, that such failure materially prejudices the ability of the Indemnifying Party
to defend such claims. The indemnifying Party shall have the right to control the defense or settlement of the claims with counsel of its own choosing provided
that such counsel is reasonably acceptable to the Indemnified Party and provided further that the Indemnified Party will be entitled, at the Indemnified Party’s
expense, to participate with its own counsel in such defense and settlement. The Indemnified Party shall at all times cooperate in the investigation and defense
of such claims and promptly deliver to the indemnifying Party (or its counsel) such information related to the basis for the claims as the indemnifying Party (or
its  counsel)  may  reasonably  request.  If  the  indemnifying  Party  declines  to  assume  defense  of  any  claim,  and  it  is  later  determined  by  a  court  of  competent
jurisdiction  that  such  claim  was  eligible  for  indemnification  under  Section  12.1  or  12.2,  as  applicable,  then  within  thirty  (30)  calendar  days  following  such
determination, the Indemnifying Party shall reimburse the Indemnified Party in full for all judgments, costs and expenses (including reasonable attorneys’ fees)
incurred in connection with such claim. The indemnifying Party shall not settle any claim without the prior written consent of the Indemnified Party if such
settlement:  (a)  materially  diminishes  any  of  the  Indemnified  Party’s  rights  under  this  Agreement  and/or  the  Work  Order  or  seeks  to  impose  additional
obligations  on  the  Indemnified  Party;  or  (b)  arises  out  of  or  is  a  part  of  any  criminal  action,  suit  or  proceeding  or  contains  a  stipulation  or  admission  or
acknowledgement of any liability or wrongdoing (whether in contract, tort or otherwise) on the part of the Indemnified Party.

12.4

Definitions. The following definitions apply in this Section 12:

(a)

(b)

(c)

(d)

“CRL  Indemnified  Party”  means  CRL  and  its  Affiliates  and  the  directors,  officers,  employees,  consultants  and  agents  of  CRL  and/or  its
Affiliates.

“VistaGen Indemnified Party” means VistaGen and its Affiliates and the directors, officers, employees, consultants and agents of VistaGen and/or
its Affiliates.

“Indemnified  Party”  means  either  a  CRL  Indemnified  Party  or  an  VistaGen  Indemnified
Party.

“Losses”  mean  all  liability,  loss,  costs,  claims,  damages,  expenses,  judgments,  awards,  and  settlements,  including  (without  limitation)  actual
attorneys’ fees and expenses, whether arising in tort or in contract, in law or in equity. arising from a claim brought by a third party, in response to
any legal proceeding brought by a third party or occurring due to any contractual obligation to indemnify, defend and/or hold harmless any third
party.

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(e)

“CRL Indemnified Conditions” means:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

the CRO Services;

use 
the 
Deliverables;

of

any  harm  or  bodily  injury  caused  by  any
Product;

the  infringement  of  or  use  of  any  intellectual  property  right  or  proprietary  right  in  relation  to  VistaGen’s  Products,  programs,  procedures,
materials, data, or other information used by, or on behalf of, or furnished by or on behalf of, VistaGen in connection with this Agreement or
the provision of CRO Services under this Agreement;

the  material  breach  of  this Agreement  by  VistaGen  or  by  any  other  person  for  whose  actions  VistaGen  is  liable  under  this Agreement  or
applicable law;

the negligence, intentional misconduct or intentional omission of VistaGen or of any employee, contractor, agent or representative of VistaGen;
or

any request for deposition, documents or other information legally compelled including, without limitation, by subpoena or by agreement made
in lieu of subpoena, in connection with VistaGen’s litigation, arbitration or other proceeding with any third party where CRL and/or any of its
Affiliates are not also a party or in any investigation of VistaGen by any governmental authority.

(f) “VistaGen Indemnified Conditions” means:

(i)

(ii)

the  negligence,  intentional  misconduct  or  intentional  omission  of  CRL  or  any  employee,  contractor,  agent  or  representative  of
CRL;

the  material  breach  of  this  Agreement  by  CRL  or  any  other  person  for  whose  actions  CRL  is  liable  under  applicable  law  or  this
Agreement;

(iii)

the  violation  by  CRL,  its  directors,  officers,  employees  or  agents,  of  applicable  law,  regulation  or  other  governmental
requirement;

13.

Insurance.

13.1

VistaGen shall maintain in full force and effect customary insurance coverage for all VistaGen Products, clinical trials or other projects related to the CRO
Services, including, without limitation, products liability, general liability, and related insurance coverage with policy limits in an amount VistaGen’s senior
management reasonably determines to be sufficient to support VistaGen’s indemnification obligations hereunder, but as of such date as VistaGen commences a
clinical trial for which CRL or its Affiliates provide CRO Services, then in no event less than $5,000,000 per occurrence as it relates to clinical trials. Upon
completing  or  otherwise  terminating  each  clinical  trial  for  which  CRL  provides  CRO  Services,  VistaGen  shall  purchase  and  maintain  a  tail  policy  to  cover
claims first made and/or reported after completion of such clinical trial.

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13.2

VistaGen’s insurance policy(ies) covering any clinical trial shall name CRL and its respective officers, directors and employees as additional named insureds
with a broad form additional insured endorsement (acceptable in form and content to CRL) and shall indicate that the policy will not be canceled or changed
until thirty (30) days after written notice of such cancellation or change is delivered to CRL. At CRL’s request, VistaGen shall provide CRL with an additional
insured certificate and a copy of the additional insured endorsement from VistaGen’s insurance carrier.

13.3

CRL shall maintain in full force and effect, at no cost to VistaGen, customary insurance coverage for the CRO Services to be undertaken under each Work
Order with policy limits in an amount CRL’s senior management reasonably determines to be commercially reasonable under the circumstances.

14.

Limitation of Liability.

14.1

14.2

14.3

14.4

VistaGen agrees that, regardless of the form of any claim, VistaGen’s sole remedy and CRL’s sole obligation with respect to any claims made related to or
arising out of this Agreement shall be governed by this Section.

VistaGen’s remedies for defective performance by CRL under this Agreement shall be limited to, at CRL’s option, either: (a) correction of the non-conforming
CRO  Services,  or  (b)  reimbursements  of  payments  (excluding  payments  for  Expenses)  made  by  VistaGen  to  CRL  for  such  non-conforming  CRO  Services
under the applicable Work Order during the six (6) month period immediately preceding the event for which the claim is made.

CRL’s obligations for any reason other than as set forth in Section 14.2 shall not exceed the aggregate compensation paid to CRL for CRO Services actually
performed  during  the  rolling  twelve  (12)  month  period  preceding  the  date  on  which  notice  of  the  claim  is  given  under  the  Work  Order  to  which  the  claim
pertains; provided however, with respect to delivery of any notice of claim during the initial twelve (12) months of the applicable Work Order, such limitation
shall be equal to the actual aggregate compensation paid to CRL during the first six months of such Work Order; and provided, further, with respect to delivery
of any notice of claim following termination or expiration of this Agreement, such limitation shall be equal to the aggregate compensation paid to CRL during
the final twelve (12) months of the applicable Work Order.

It is expressly agreed that in no event shall CRL, its Affiliates or anyone else who has been involved in the performance of this Agreement on behalf of CRL be
liable for any indirect, consequential, incidental, special, punitive, or exemplary damages arising from any legal theory, even if such person had been apprised
of the likelihood of such damages occurring. VistaGen agrees that, notwithstanding the applicable statute of limitations, it may not bring any claim against CRL
more than one (1) year after the cause of action arose.

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15.

Investigator 
Payments.

and  Other 

Third-Party

15.1

15.2

CRL shall, at VistaGen’s request in a Work Order, disburse payments to investigators, monitors, laboratories or other third parties contracted with VistaGen to
provide services with respect to a clinical study for which CRL is providing CRO Services to VistaGen (each, a “Third-Party Contractor”). CRL will disburse
all such payments (each, a “Third-Party Contractor Fee”) in accordance with the provisions of the agreement between VistaGen and the Third-Party Contractor
(each,  a  “Third-Party  Contractor Agreement”),  a  copy  of  which  shall  be  provided  to  CRL  prior  to  any  payment  being  made.  CRL  will  not  unreasonably
withhold any Third-Party Contractor Fee and will not impose additional restrictions on the terms of payment for the Third-Party Contractor Fee set forth in the
Third-Party Contractor Agreement.

VistaGen  shall  provide  CRL  with  the  funds  to  pay  each  Third-Party  Contractor  Fee,  plus  any  related  administrative  fee,  prior  to  the  date  on  which  CRL  is
scheduled to disburse such Third-Party Contractor Fee. To the extent payments to any Third-Party Contractors are to be made in a currency other than U.S.
dollars, then contrary to the terms of Section 4.3 to make payment in U.S. dollars, funds for each such payment shall be made by VistaGen in the currency in
which the Third-Party Contractor Fee is to be paid. If VistaGen does not provide the funds to CRL, then CRL will not disburse such Third-Party Contractor Fee
until  it  receives  the  funds,  including  any  administrative  fee,  from  VistaGen.  In  such  event,  VistaGen  shall  be  deemed  to  have  released  CRL  from  all  legal
liability, and to have covenanted to indemnify and not to sue CRL on any claims related to failure to disburse or otherwise pay the Third-Party Contractor Fee.
VistaGen agrees that CRL shall not have any liability to VistaGen with respect to payments made to any Third-Party Contractor in accordance with the terms of
the applicable Third-Party Contractor Agreement, even if VistaGen would prefer such payment not be made unless VistaGen shall have notified CRL, which
notification may be made by any reasonable means (which may include email, depending on the circumstances), prior to the time the payment is due not to
make the payment. If VistaGen notifies CRL not to make any payment, VistaGen agrees to indemnify CRL with respect to any claims made against it by the
Third-Party Contractor related to failure to disburse or otherwise pay the Third-Party Contractor Fee withheld in accordance with VistaGen’s instructions.

15.3

If  VistaGen  provides  CRL  with  funds  in  excess  of  the  total  Third-Party  Contractor  Fees  disbursed  by  CRL  (plus  any  administrative  fee  for  Third-Party
Contractor Fees actually paid), then CRL shall prepare and send a reconciliation of such funds to VistaGen within ninety (90) days after the early termination or
expiration of the Work Order under which such Fees were being disbursed. Any excess funds shall first be applied to undisputed amounts otherwise due to
CRL hereunder, and then any remainder shall be refunded to VistaGen.

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16.

Transfer of Responsibilities and Obligations.

16.1

16.2

If VistaGen, pursuant to a Work Order, requests that CRL enter into agreements with investigators, monitors, laboratories, storage facilities, clinical material
manufacturers or shippers, or other third parties to provide services with respect to a clinical study for which CRL is providing CRO Services to VistaGen (each
a “Third-Party Agreement”), then subject to CRL undertaking its obligations under each Third-Party Agreement (except as with respect to payment which is
governed by Section 16.2), VistaGen will assume all obligations and liabilities under such Third-Party Agreement, including but not limited to all regulatory
and legal obligations, and indemnify CRL for any claims made against CRL for any liability incurred by it as a result of the execution and delivery by CRL of
such Third-Party Agreement(s). Notwithstanding the foregoing, the Parties shall establish a process for review of Third-Party Agreements before execution,
which  process  shall  generally  include  an  agreement  on  the  base  form,  information  provided  by  VistaGen  on  parameters  for  changes,  and  consultation  with
VistaGen on significant issues outside the parameters. If a Work Order terminates (for any reason) before completion of the CRO Services specified therein and
pursuant to that Work Order, CRL has entered into any Third-Party Agreements, CRL shall be free to terminate such Third-Party Agreements and VistaGen
shall pay all termination fees or other liabilities owed by CRL or its Affiliates due to such termination.

VistaGen shall provide CRL with the funds to pay each Third-Party Agreement (the “Third-Party Fees”), plus any administrative fee, before the date on which
CRL is scheduled to disburse each such Third-Party Fee. To the extent payments to Third Parties are to be made in a currency other than U.S. dollars, then
contrary to the terms of Section 4.3, funds for each such payment shall be made by VistaGen in the currency in which the Third-Party Fee is to be paid. If
VistaGen does not provide the funds to CRL before the scheduled payment date, then CRL will not disburse such Third-Party Fee until it receives the funds
(including any administrative fee) from VistaGen. CRL shall have no liability to VistaGen with respect to payments made to any Third Party in accordance with
the terms of a Third-Party Agreement, even if VistaGen would prefer such payment not be made unless VistaGen instructs CRL not to make the payment before
CRL does so. If VistaGen fails to provide the required funds on a timely basis or notifies CRL to withhold or otherwise not pay any Third-Party Fees required to
be paid under an applicable Third-Party Agreement, then VistaGen agrees to indemnify CRL with respect to any claims made against CRL by the Third Party
for  failure  to  make  (or  delay  in  making)  the  payment  of  the  Third-Party  Fees  (including,  but  not  limited  to,  charges  for  interest  and  late  payment  fees).  If
VistaGen provides CRL with funds in excess of the total Third-Party Fees disbursed by CRL (plus the administrative fee), then CRL shall prepare and send a
reconciliation of such funds to VistaGen within ninety (90) days after the early termination or expiration of the Work Order under which such Third-Party Fees
were being disbursed. Any excess Third-Party Fees shall first be applied to undisputed amounts otherwise due to CRL hereunder, and then any remainder shall
be refunded to VistaGen.

16.3

Transfer of sponsor obligations with respect to any clinical trial may only be made pursuant to a Work Order, a signed Transfer of Sponsor Obligation form,
and otherwise in accordance with 21 CFR 312.52 and other applicable laws and regulations.

-17-

 
 
 
  
  
  
 
 
 
 
 
17.

Audits, Inspections and Site Visits.

17.1

17.2

17.3

17.4

17.5

VistaGen  and/or  VistaGen’s  representative  may,  during  normal  business  hours  and  upon  no  less  than  two  (2)  weeks’  prior  notice,  meet  with  CRL  or  its
applicable Affiliate(s)  and  their  respective  employees,  consultants,  and/or  subcontractors  engaged  in  the  performance  of  CRO  Services  at  CRL  or  at  the
location(s) of the facilities used to undertake the CRO Services to: (i) examine and inspect the facilities used for the performance of CRO Services, (ii) observe
the progress of activities relating to the CRO Services; (iii) inspect and copy or have copied records, documents, information, data, and materials specifically
relating to the CRO Services, and (iv) inspect and copy or have copied financial reports and other documents accounting for the fees, costs and expenses of the
CRO Services.

CRL will, during regular business hours and on no less than two (2) weeks’ notice, permit a regulatory auditor to have access to CRL’s records pertaining to the
CRO Services provided pursuant to this Agreement for the purpose of auditing and verifying such CRO Services.

CRL will, during regular business hours and on no less than two (2) weeks’ notice, permit a financial auditor to have access to CRL’s records pertaining to the
CRO Services provided pursuant to this Agreement for the purpose of auditing and verifying the billing for such CRO Services.

At VistaGen’s reasonable request, CRL shall cooperate with any regulatory authorities and allow them to review and copy applicable records and data related
to the CRO Services. If a request is made directly to CRL (or its applicable Affiliate(s)) by any regulatory authority to review records and data, or to contact,
visit, or inspect CRL’s (or its applicable Affiliate’s or investigator’s) records and data, relating to any CRO Services or CRL’s (or its applicable Affiliate’s or
investigator’s) performance of CRO Services, then CRL shall notify VistaGen as soon as practicable (unless prohibited by law) after such regulatory authority
issues  or  gives  to  CRL  (or  any  such  of  its  applicable Affiliate(s)  or  investigator)  any  notice  of  intent  to  inspect,  notice  of  inspection,  notice  of  inspectional
observations,  warning  letter,  or  other  written  communication  concerning  any  CRO  Services,  and  CRL  shall  provide  VistaGen  a  copy  thereof.  To  the  extent
permitted  by  law,  prior  to  any  submission  to  a  regulatory  authority  of  any  response  that  may  be  required  as  a  result  of  the  inspection  or  visit,  CRL  (its
applicable Affiliate(s) or investigator) shall provide VistaGen with the opportunity to review and comment on the proposed response.

All  persons  sent  by  VistaGen  to  undertake  such  visits,  inspections  or  audits  pursuant  to  Sections  17.1-17.3  shall  be  qualified  by  education,  training,  and
experience, and shall be reasonably acceptable to CRL. The number, extent and frequency of such visits, inspections or audits shall be reasonable under the
circumstances and normally shall not exceed one in every twelve (12) month rolling period. Unless such person is an employee of VistaGen, he or she shall
report  to  VistaGen  only  those  facts  and  conclusions  determined  as  a  result  of  the  visit  which  are  directly  related  to  VistaGen’s  interests. All  information
obtained from an audit shall be Confidential Information except as otherwise set forth in Section 7.3, above. Unless the visits, inspections and/or audits set
forth in Sections 17.1-17.4 are specifically included in a Work Order, VistaGen shall, in addition to any other payment obligations under this Agreement, pay
CRL,  on  a  time-and-materials  basis,  at  its  current  rates  for  the  CRL  or  Affiliate  personnel  assigned  to  supervise  or  otherwise  participate  in  or  assist
administratively with such audit, inspection or visit, including without limitation for any CRL or Affiliate personnel required to participate in it or meet with the
regulatory inspectors.

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18.

Force Majeure; Other Delays.

18.1

If  either  Party  is  delayed  in,  hindered  in,  or  prevented  from  the  performance  of  any  act  required  under  this Agreement  by  reason  of  strike,  lockout,  labor
problems,  restrictions  of  government,  judicial  orders  or  decrees,  riots,  insurrection,  terrorism,  war,  acts  of  God,  inclement  weather,  or  other  causes  that  are
beyond  the  reasonable  control  of  such  Party,  then  performance  of  such  act  shall  be  excused  until  the  cause  is  remedied.  The  delayed  Party  shall  use
commercially reasonable efforts to resume performance as soon as possible.

Notwithstanding the foregoing, this Section 18.1 shall not apply to or excuse any failure to make payments when due.

18.2

CRL  will  not  be  liable  to  VistaGen  nor  be  deemed  to  have  breached  this Agreement  for  errors,  delays  or  other  consequences  arising  from  the  failure  of
VistaGen or any third party not under CRL’s direct control to provide documents, materials or information in a timely manner or otherwise cooperate in order
for CRL to perform its obligations, and any such failure by VistaGen or any third party not under CRL’s direct control shall automatically extend any timelines
affected by such failure by at least the period of the delay (and such longer period as it may take as a result of the need to suspend and then wind up again),
unless VistaGen agrees in writing to pay any additional costs that would be required to meet the original timeline.

19.

20.

21.

22.

Independent  Contractor.  CRL  shall  perform  CRO  Services  as  an  independent  contractor.  Neither  Party  has  authority  to  make  any  statement,  representation,  or
commitment of any kind nor to take any action binding on the other Party without the other Party’s prior written consent.

Use of Names. The Parties agree that they may use each other’s name as a reference for prospective clients or in literature relating to their capabilities and strategic
relationships, provided that such use does not violate Section 7 above.

Notification. Any notices given hereunder shall be in writing and shall be deemed to have been given on the earlier of personal receipt by an authorized representative
of the Party, or receipt at the Party’s notice address. Notice may be given by the following means: registered mail/return receipt requested, overnight courier, personal
delivery, or, where specified in this Agreement, by email. All notices shall be sent to a Party at its address set forth on the signature page of this Agreement, or to such
other address as is given by notice to the other Party. Notices are deemed given on receipt or attempted delivery (if receipt is refused).

Waiver. No waiver of any right or remedy with respect to any occurrence or event shall be valid unless it is in writing and executed by the waiving Party. No such valid
waiver shall be deemed a waiver of such right or remedy with respect to such occurrence or event on a continuing basis or in the future unless the waiver states that it is
intended to apply continuously or to future events. A waiver shall not excuse use a subsequent breach of the same term, unless the waiver so states.

-19-

 
 
 
  
 
  
  
  
  
  
 
 
 
 
23.

24.

25.

26.

Severability. If any provisions of this Agreement are determined to be invalid or unenforceable, those provisions shall be reformed to the extent necessary to comply
with law and the Parties’ intent, or struck if necessary, and the validity and effect of the other provisions of this Agreement shall not be affected.

Contract 
Resolution.

Interpretation 

and 

Dispute

24.1

24.2

24.3

24.4

24.5

The official language of this Agreement and any interpretation of it is American English. All contract interpretations, notices and dispute resolutions shall be in
English. Any attachments or amendments to this Agreement shall be in English. Translation of any of these documents shall not be construed as official or
original versions of the documents.

This Agreement has been prepared following arm’s-length negotiations in which each Party had the opportunity to consult with legal counsel regarding the
provisions hereof. Every covenant, term and provision of this Agreement shall be construed according to its fair meaning and not strictly for or against any
Party or Parties.

This Agreement shall be governed by, construed and interpreted in accordance with the laws of the United States and the State of New York, without regards to
its conflict of law principles.

Any controversy, claim or dispute arising out of, in connection with or relating to this Agreement shall be first submitted to mediation, which mediation shall
take place in San Diego, Calfornia, unless another location shall be agreed upon by the Parties. If mediation is not successful, then the dispute shall be resolved
solely by binding arbitration, in accordance with Exhibit A and the Commercial Arbitration Rules of the American Arbitration Association (“AAA”) in effect
as of the day the arbitration demand is made. If the AAA rules conflict with Exhibit A, Exhibit A shall prevail.

Notwithstanding Section 24.4, (a) with respect to any uncollected invoice, if CRL asks VistaGen if VistaGen disputes that payment is due and either VistaGen
does not reply within one (1) month or VistaGen replies that there is no dispute, then CRL may bring a collection suit in a court resident in Durham County,
North Carolina and VistaGen consents to the personal jurisdiction of such courts in such matter; and (b) if damages for a breach are not likely to be an adequate
remedy, then either Party may bring an injunction proceeding before any court with jurisdiction.

Survival. The representations and warranties of the Parties in Section 10 shall survive the events to which they relate and survive the expiration or earlier termination of
this Agreement and the rights and obligations of the Parties set forth in Sections 3.2, 4, 5, 7 - 17, 20, 24 and 25 shall survive expiration or earlier termination of this
Agreement.

Assignment. This Agreement  may  not  be  assigned  by  either  Party  without  the  prior  written  consent  of  the  other  Party,  which  shall  not  be  unreasonably  withheld;
provided  however,  that  either  Party  may  assign  this Agreement  without  prior  written  consent  of  the  other  Party  in  connection  with  a  merger  or  the  sale  of  all  or
substantially all of the assigning Party’s assets or equity on the condition that such assignment shall be solely to the acquirer or purchaser of the assigning Party and such
acquirer or purchaser must assume the assigning Party’s obligations under this Agreement.

-20-

 
 
 
 
  
  
  
  
   
  
 
 
 
 
 
27.

28.

29.

Freedom to Contract. Except with respect to CRO Services for which VistaGen specifically hires CRL to perform under this Agreement, (a) VistaGen is not required to
use CRL for any specific work; (b) VistaGen is free to retain others to perform the same or similar CRO Services as offered by CRL; (c) CRL is not required to provide
any CRO Services to VistaGen; and (d) CRL is free to provide CRO Services to other clients that are similar to CRO Services provided to VistaGen.

Entire Agreement. Exhibit A to this Agreement and Work Orders are incorporated into and made a part of this Agreement. This Agreement, including the incorporated
Exhibit A  and  Work  Orders,  constitutes  the  entire  agreement  between  the  Parties  relating  to  the  subject  matter  hereof  and  supersedes  all  prior  agreements,  whether
written or oral, relating to the subject matter hereof; provided however, that all prior confidentiality, nonuse and nondisclosure agreements shall remain in effect as to all
matters  not  specifically  covered  by  this Agreement.  Except  as  otherwise  authorized  herein,  changes,  modifications,  and  amendments  shall  be  valid  only  if  made  in
writing and signed by both Parties. To be effective, any agreement between the Parties purporting to amend a term of this Agreement, including without limitation any
Work Order, must specifically identify that term’s Section number and state the Parties’ specific intent to amend that term.

Signatures. This Agreement and any amendment or Work Order issued under it may be executed in one or more counterparts, each of which shall be deemed to be an
original but all of which together shall constitute one and the same instrument. Facsimile signatures and signatures transmitted by email after having been scanned shall
be accepted as originals for the purposes of this Agreement and any Work Orders issued hereunder.

-21-

 
 
 
  
  
 
 
 
 
The Parties have executed this Agreement as of the date first written above.

Cato Research Ltd.

By: Jo Cato

VistaGen Therapeutics, Inc.

By: Shawn K. Singh

The signer certifies that he/she has the authority to execute this Master Services
Agreementon behalf of Cato Research Ltd.

The signer certifies that he/she has the authority to execute this Master Services
Agreement behalf of VistaGen Therapeutics, Inc.

Name:  Jo Cato  
Title: COO  

Name: Shawn J. Singh  
Title: Chief Executive Officer

-22-

 
 
 
 
 
 
 
 
 
 
                                                                         
 
                                          
 
 
 
The following rules shall apply to any arbitration of the parties under Section 24:

EXHIBIT A
ARBITRATION PROCEDURES

1. Location and Language. The location of the arbitration shall be in San Mateo, California, unless the Parties should agree to a different location. The arbitration shall be
conducted in American English and any findings and/or decisions shall be rendered in American English.

2. Number and Selection of Arbitrator. The arbitration shall be conducted by one arbitrator who is independent and disinterested with respect to the Parties, this Agreement,
and the outcome of the arbitration (a “neutral arbitrator”). If the Parties cannot agree on a neutral arbitrator, then each Party shall select an arbitrator it believes to be neutral,
who together shall select a third neutral arbitrator to conduct the arbitration. The arbitrator will be selected with consideration given to his or her experience with disputes of the
type being submitted (e.g., the nature of the claim and the technology involved). It is the intent of the Parties that the final arbitrator be selected within thirty (30) days after the
arbitration demand is first made.

3. Case Management. Prompt resolution of any dispute is important to both Parties and the Parties agree that the arbitration of any dispute shall be conducted expeditiously.
The arbitrator is instructed and directed to assume case management initiative and control over the arbitration process (including scheduling of events, pre-hearing discovery
and activities, and the conduct of the hearing), in order to complete the arbitration as expeditiously as is reasonably practical to obtain a just resolution of the dispute.

4. Remedies. The arbitrator shall follow and apply the applicable law. The arbitrator shall grant such legal or equitable remedies and relief in compliance with applicable law
that the arbitrator deems just and equitable, but only to the extent that such remedies or relief could be granted by a state or federal court and as otherwise limited by the terms in
this Agreement. No punitive damages may be awarded by the arbitrator. The arbitrator may not award punitive damages and no court action may be maintained seeking
punitive damages.

5. Expenses. The expenses of the arbitration, including the arbitrator’s fees, expert witness fees, and attorney’s fees, may be awarded to the prevailing Party, in the discretion of
the arbitrator, or may be apportioned between the Parties in any manner deemed appropriate by the arbitrator. Unless and until the arbitrator decides that one Party is to pay for
all (or a share) of such expenses, both Parties shall share equally in the payment of the arbitrator’s fees as and when billed by the arbitrator.

6. Confidentiality. The Parties shall keep confidential the fact of the arbitration, the dispute being arbitrated, and the decision of the arbitrator. Notwithstanding the foregoing,
(a) the Parties may disclose information about the arbitration to persons who have a need to know, such as directors, trustees, management employees, witnesses, experts,
investors, attorneys, lenders, insurers, and others who may be directly affected; (b) if a Party has stock that is publicly traded, the Party may make such disclosures as are
required by applicable securities laws or listing rules; and (c) if a Party is expressly asked by a Third Party about the dispute or the arbitration, the Party may disclose and
acknowledge in general and limited terms that there is a dispute with the other Party which is being (or has been) arbitrated.

A-1

 
 
 
 
 
 
 
 
 
 
 
 
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-223556 and 333-208354) and Form S-3 (File No. 333-215671)
of VistaGen Therapeutics, Inc. of our report dated June 25, 2019 ( which report expresses an unqualified opinion and includes an explanatory paragraph expressing substantial
doubt  about  the  Company’s  ability  to  continue  as  a  going concern),  relating  to  the  consolidated  financial  statements  of  VistaGen  Therapeutics,  Inc.,  which  appears  in  this
Annual Report on Form 10-K.

Exhibit 23.1

/s/ OUM & CO. LLP

San Francisco, California
June 25, 2019

 
 
 
 
 
 
 
 
 
EXHIBIT 31.1

I, Shawn K. Singh, certify that;

1.            I  have  reviewed  this  Annual  Report  on  Form  10-K  of  VistaGen  Therapeutics,  Inc.,  a  Nevada

corporation;

CERTIFICATION

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 the 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(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules

13a-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(s)  and  I  have  disclosed,  based  on  our  most  recent  evaluation  of  internal  control  over  financial  reporting,  to  the  registrant’s

auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) 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.

June 25, 2019                                                                                                            

/s/ Shawn K.
Singh
Shawn K. Singh, JD

Principal Executive Officer 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EXHIBIT 31.2

I, Jerrold D. Dotson, certify that:

1.            I  have  reviewed  this  Annual  Report  on  Form  10-K  of  VistaGen  Therapeutics,  Inc.,  a  Nevada

corporation;

CERTIFICATION

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 the 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(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules

13a-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(s)  and  I  have  disclosed,  based  on  our  most  recent  evaluation  of  internal  control  over  financial  reporting,  to  the  registrant’s

auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) 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.

June 25, 2019                                                                                                 

/s/ Jerrold D. Dotson
Jerrold D. Dotson 
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

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of VistaGen Therapeutics, Inc. (the “Company ”)

hereby certifies, to such officer’s knowledge, that:

(i) the accompanying Annual Report on Form 10-K of the Company for the annual period ended March 31, 2019 (the “Report”) fully complies with the requirements

of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

June 25, 2019

/s/ Shawn K. Singh
Shawn K. Singh, JD
Principal Executive Officer

/s/ Jerrold D. Dotson
Jerrold D. Dotson
Principal Financial Officer