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PDS Biotechnology Corporation

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FY2021 Annual Report · PDS Biotechnology Corporation
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

(Mark One)

☒

☐

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

For the fiscal year ended  December 31, 2021

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

For the transition period from ________to ________

Commission file number 001-37568

PDS Biotechnology Corporation

(Exact name of registrant as specified in its charter)

Delaware
(State or other jurisdiction of incorporation or organization)

26-4231384
(IRS Employer Identification No.)

25B Vreeland Road, Suite 300, Florham Park, NJ 07932
(Address of principal executive offices)

(800) 208-3343
(Registrant’s telephone number)

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

Title of each class
Common Stock, par value $0.00033 per share

Trading symbol(s)
PDSB

Name of each exchange on which registered
Nasdaq Capital Market

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

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

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

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

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

Large accelerated filer ☐

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.  Yes ☐ No ☐

Indicate  by  check  mark  whether  the  registrant  has  filed  a  report  on  and  attestation  to  its  management’s  assessment  of  the  effectiveness  of  its  internal
control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared
or issued its audit report. ☐

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

The aggregate market value of the voting and non-voting common equity held by non-affiliates (without admitting that any person whose shares are not
included  in  such  calculation  is  an  affiliate)  of  the  registrant  as  of  June  30,  2021,  was  $339,715,787  (based  on  the  closing  price  for shares  of  the
registrant’s common stock as reported on the Nasdaq Capital Market on that date).

The number of shares of the registrant’s common stock, par value $0.00033 per share, outstanding as of March 25, 2022 was  28,448,612.

Documents Incorporated By Reference

Portions of registrant’s definitive proxy statement relating to registrant’s 2022 Annual Meeting of Stockholders (the “Proxy Statement”) to be filed with the
Securities and Exchange Commission pursuant to Regulation 14A, not later than 120 days after the close of the registrant’s fiscal year ended December
31,  2021,  are  incorporated  by  reference  in  Part  III  of  this  Annual  Report  on  Form  10-K. Except  with  respect  to  information  specifically  incorporated  by
reference in this Annual Report on Form 10-K, the Proxy Statement is not deemed to be filed as part of this Annual Report on Form 10-K.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
PDS BIOTECHNOLOGY CORPORATION

FORM 10-K FOR THE YEAR ENDED DECEMBER 31, 2021

INDEX

PART I

Business

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

Properties
Legal Proceedings
Mine Safety Disclosures

PART II

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuers Purchases of Equity Securities
Management’s Discussion and Analysis of Financial Condition and Results of Operations
Financial Statements and Supplementary Data
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

Item 5
Item 7
Item 8
Item 9
Item 9A Controls and Procedures
Item 9B Other Information

PART III

Item 10
Item 11
Item 12
Item 13
Item 14

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

PART IV

Item 15
Item 16

Exhibits and Financial Statement Schedules
Form 10-K Summary

Signatures

PAGE

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Index

Cautionary Note Regarding Forward-Looking Statements

This Annual Report on Form 10-K (this “Annual Report”) contains forward-looking statements (including within the meaning of Section 21E of the
United States Securities Exchange Act of 1934, as amended, and Section 27A of the United States Securities Act of 1933, as amended) concerning the
Company and other matters. These statements may discuss goals, intentions and expectations as to future plans, trends, events, results of operations or
financial  condition,  or  otherwise,  based  on  current  beliefs  of  the  Company’s  management,  as  well  as  assumptions  made  by,  and  information  currently
available  to,  management.  Forward-looking  statements  generally  include  statements that  are  predictive  in  nature  and  depend  upon  or  refer  to  future
events  or  conditions,  and  include  words  such  as  “may,”  “will,”  “should,”  “would,”  “expect,”  “anticipate,”  “plan,”  “likely,”  “believe,”  “estimate,”  “project,”
“intend,”  “forecast,”  “guidance”,  “outlook”  and  other  similar  expressions  among  others.  Forward-looking  statements  are  based  on  current  beliefs  and
assumptions  that  are  subject  to  risks  and  uncertainties  and  are  not  guarantees  of  future  performance.  Actual  results  could differ  materially  from  those
contained in any forward-looking statement as a result of various factors, including, without limitation:

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the Company’s ability to protect its intellectual property rights;

the Company’s anticipated capital requirements, including the Company’s anticipated cash runway and the Company’s current expectations
regarding its plans for future equity financings;

the Company’s dependence on additional financing to fund its operations and complete the development and commercialization of its product
candidates,  and  the  risks  that  raising  such  additional  capital  may restrict  the  Company’s  operations  or  require  the  Company  to  relinquish
rights to the Company’s technologies or product candidates;

the  Company’s  limited  operating  history  in  the  Company’s  current  line  of  business,  which  makes  it  difficult  to  evaluate  the  Company’s
prospects, the Company’s business plan or the likelihood of the Company’s successful implementation of such business plan;

the timing for the Company or its partners to initiate the planned clinical trials for PDS0101, PDS0103, PDS0203 and other Versamune  and
Infectimune based products and the future success of such trials;

the successful implementation of the Company’s research and development programs and collaborations, including any collaboration studies
concerning PDS0101, PDS0203 and other Versamune and Infectimune based products and the Company’s interpretation of the results and
findings of such programs and collaborations and whether such results are sufficient to support the future success of the Company’s product
candidates;

the  success,  timing  and  cost  of  the  Company’s  ongoing  clinical  trials  and  anticipated  clinical  trials  for  the  Company’s  current  product
candidates, including statements regarding the timing of initiation, pace of enrollment and completion of the trials (including our ability to fully
fund our disclosed clinical trials, which assumes no material changes to our currently projected expenses), futility analyses, presentations at
conferences and data reported in an abstract, and receipt of interim results (including, without limitation, any preclinical results or data), which
are not necessarily indicative of the final results of the Company’s ongoing clinical trials;

expectations  for  the  clinical  and  preclinical  development,  manufacturing,  regulatory  approval,  and  commercialization  of  our  product
candidates;

any  Company  statements  about  its  understanding  of  product  candidates  mechanisms  of  action  and  interpretation  of  preclinical  and  early
clinical results from its clinical development programs and any collaboration studies; the acceptance by the market of the Company’s product
candidates, if approved; the timing of and the Company’s ability to obtain and maintain U.S. Food and Drug Administration or other regulatory
authority approval of, or other action with respect to, the Company’s product candidates; and

other factors, including legislative, regulatory, political and economic developments not within the Company’s control, including  unforeseen
circumstances or other disruptions to normal business operations arising from or related to COVID-19 and those listed under Part II, Item 1A.
Risk Factors.

Any forward-looking statements in this Annual Report reflect our current views with respect to future events or to our future financial performance
and involve known and unknown risks, uncertainties and other 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 these forward-looking statements.  Given these uncertainties, you
should  not  place  undue  reliance  on  these  forward-looking  statements.  Except  as  required  by  law,  we  assume  no  obligation  to  update  or  revise  these
forward-looking statements for any reason, whether as a result of new information, future events or otherwise.

In this Annual Report, unless otherwise stated or the context otherwise indicates, references to “PDS,” “the Company,” “we,” “us,” “our” and similar

references refer to PDS Biotechnology Corporation, a Delaware corporation.

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Index

PART I

Unless the context requires otherwise, references in this report to “PDS,” “Company,” “we,” “us,” and “our” and similar designations refer to PDS

Biotechnology Corporation and our subsidiary.

ITEM 1.

Business

Company Overview

We are a clinical-stage immunotherapy company developing a growing pipeline of molecularly targeted immunotherapies designed to overcome
the limitations  of  current  immunotherapy  and  vaccine  technologies.  We  own  the  proprietary  T-cell  activating  platforms  designed  to  train  the  immune
system  to  better  attack  and  destroy  disease;  Versamune®,  for  treatments  in  oncology  and  Infectimune™,  for  treatments  in  infectious  disease.  When
paired with an antigen, which is a disease-related protein that is recognizable by the immune system, Versamune and Infectimune have both been shown
to  induce, in vivo,  large  quantities  of  high-quality,  highly  potent  polyfunctional  CD4+  helper  and  CD8+  killer  T-cells,  a  specific  sub-type  of  T-cell  that  is
more  effective  at  killing  infected  or  target  cells.  Infectimune  is  also  designed  to  promote  the  induction  of  disease-specific  neutralizing  antibodies.  Our
immuno-oncology  product  candidates  are  of  potential  interest  for  use  as  a component  of  combination  product  candidates  (for  example,  in  combination
with other leading technologies such as checkpoint inhibitors) to provide more effective treatments across a range of advanced and/or refractory cancers.
We are also evaluating our immunotherapies as monotherapies in early-stage disease for oncology.  We are developing targeted product candidates to
treat several cancers including Human Papillomavirus (HPV) associated cancers, melanoma, colorectal, lung, breast and prostate cancers. Our infectious
disease candidates are of potential interest as vaccines to prevent COVID-19 and universal influenza.

Our current pipeline of Versamune-based targeted immunotherapies and Infectimune-based therapies focuses on the use of selected disease-
associated antigens that have been demonstrated to be associated with a variety of solid tumors, as well as specific infectious diseases. Our pipeline is
shown below:

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Index

Immunotherapy Overview

Immunotherapy  is  a  treatment  that  uses  the  person’s  own  immune  to  fight  disease  by  recognizing,  attacking  and  eliminating  cancer  and  also
neutralizing  infectious  agents.  Immunotherapies,  specifically  for  cancer  treatment,  come  in  a  variety  of  forms  including,  but  not  limited  to,  killer  T-cell
stimulators, checkpoint inhibitors, CAR T-cell therapy and monoclonal antibodies.

Cancer  remains  a  leading  cause  of  morbidity  and  mortality  despite  improvements  in  treatment.  The  Versamune platform  belongs  to  a  class  of
promising  new  treatments  that  have  emerged  from  the  convergence  of  the  oncology  and  immunology  fields.  These  novel  therapies,  that  harness  the
power  of  the  immune  system  to  fight  cancer,  are  called immunotherapies. Cancer immunotherapies have significant potential to  treat  a  broad  range  of
cancers, and several have been approved by the United States Food and Drug Administration (“FDA”). While progress has been made in developing new
anti-cancer immunotherapeutic technologies and products, significant challenges continue to limit their broad clinical effectiveness.  We are developing
the  Versamune  based  treatments  with  the  goal  of  overcoming  the  limitations  and  safety concerns  presented  by  other  anti-cancer  treatments.    PDS
Biotechnology seeks to develop safe and effective therapies for cancer patients.

On  a  basic  immunological  level,  there  are  considerable  hurdles  impeding  the  ability  of  immunotherapy  to  harness  the body’s  immune  system.
Although  approved  checkpoint  inhibitors  have  been  demonstrated  to  be  effective  in  a  small  percentage  of  patients.  However,  for  those  patients  who
respond, the durability and duration of their responses can be significant. However, the reported rates of response for checkpoint inhibitors are only in the
range  of  15-20%.  Importantly,  immune  therapies,  including  checkpoint  inhibitors,  CAR-Ts  and  live-vector  vaccines,  present  the  potential  for  significant
systemic toxicities limiting their use both in the treatment of early-stage cancer or in combination with other approved anti-cancer treatments. In contrast
to the above described immunotherapies, we believe Versamune may have a unique combination of potency and safety therefore presenting a significant
commercial opportunity in both early and late-stage disease.

The challenges to effective immunotherapy

The  inability  to  generate  adequate  quantities  of  high-quality  killer  (CD8+)  T-cells,  to  minimize  systemic  toxicities,  to  overcome  the  immune
system’s  tolerance  of  the  cancer and  to  generate  immunological  memory,  all  limit  the  clinical  effectiveness  of  immunotherapies.    On  a  fundamental
biological or immunological level, one of the most significant challenges facing the industry is the development of simple and easy to administer therapies
that  can  effectively  treat  cancer  with  minimal  side  effects.    Suboptimal  activation  of  killer  (CD8+)  T-cells  remains  a  key  limitation  of  immunotherapies.
Potential hurdles exist at various stages of the immunological process, including poor uptake of the antigen by the dendritic cells as well as inadequate
processing and presentation of the tumor antigen into the correct immunological pathways.

Cancer Immunotherapy

Cancer immunotherapy is a form of cancer treatment that utilizes the power of the body’s own immune system to recognize, attack and eliminate
cancer. The ultimate goal of cancer immunotherapy is to improve patient quality of life and to extend patient life by slowing down the rate of spread of the
cancer, shrinkage of the tumors and in some cases eradication of the cancer. The body’s immune system is a complex,  biological network designed to
defend against germs, other microscopic invaders, and cancer cells. Once the immune system recognizes an organism or cell as foreign or dangerous, it
begins a series of complex reactions to identify, target and eliminate them. This process of events is referred to as mounting an immune response. Cancer
immunotherapy takes advantage of the fact that most cancer cells express unique proteins, also called tumor antigens, not normally expressed by healthy
cells that can be recognized by the immune system as abnormal. Because the immune system is precise, for the most part, a resulting immune response
can  target  these  dangerous  cancer  cells  exclusively  while  sparing  healthy  cells.  However,  the challenge  remains  that  cancer  cells  are  able  by  various
mechanisms to evade the immune system’s surveillance, so the body becomes tolerant to them.

An ideal cancer immunotherapy should have the following attributes to maximize the opportunity for clinical effectiveness in patients. It should:

● Stimulate both tumor-specific killer and helper T-cells within the body
● Activate, arm and expand large numbers of T-cells that recognize the tumor
● Alter or de-camouflage the tumor microenvironment (TME) to make the cancer more visible or susceptible to attack by the immune system
● Generate immune memory, so that if the cancer cells return, the immune system can recognize and eliminate them
● Optimize safety and tolerability by limiting systemic inflammation and toxicity

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Index

As  stated  in  the  June  2019  issue  of  The  Journal  of  Immunology ,  a  leading  peer-reviewed  journal  in  the  field  of  immunology,  our  Versamune
platform possesses each of these attributes, inducing potent anti-tumor responses in preclinical studies. (Gandhapudi, et al., J. Immunology, June 2019;
Rumfield et al, J. Journal for ImmunoTherapy of  Cancer, May 2020). We believe our Versamune technology platform is unique in its ability to successfully
encompass the mechanistic attributes required to induce a safe and effective anti-cancer immune response.

How does cancer immunotherapy work?

An important function of the body’s immune system is to scan for proteins not normally expressed in healthy tissue (antigens). Once an antigen
has been identified as foreign, abnormal or dangerous, the antigen is presented to T-cells, a type of white blood cell effective at eliminating cancer cells
and  infectious  agents  (e.g.  bacteria  and  viruses).  The  presentation  of  an  antigen  to  T-cells  is  implemented  primarily  in the  lymph  nodes  by  specialized
antigen presenting cells known as dendritic cells which are programmed specially to identify foreign antigens, process them and to present them to T-cells.
Unique  proteins  on  the  surface  of  dendritic  cells,  known  as major  histocompatibility  complex  (MHC)  molecules,  bind  to  the  foreign  antigen  and  display
them on the cell surface for recognition by the appropriate T-cells. Then, once presented, a sub-population of T-cells known as the CD8+ or killer T-cells,
are  primed  and  respond  to  the  specific  foreign  antigen  by  attacking  and  killing  the  cells  containing  the  abnormal  protein.  Other  T-cell  sub-populations,
such as CD4+ or helper T-cells, are also critical in regulating immune responses.

Cells communicate via chemical signaling. For an immune response to be triggered and to be effective, important immune signaling pathways
must be activated to enable the body to induce messenger proteins known as cytokines and chemokines. Some of these cytokines and chemokines serve
both to activate and expand T-cells and to arm the T-cells with the appropriate cancer-killing function.

An  effective  cancer  immunotherapy  must  modulate  these  complex  processes,  enhancing  activation  and  producing  robust  expansion  of  the
critically important high-quality, tumor-specific T-cell populations, most notably CD8+ killer cells. As will be reviewed in more detail in the section below,
the  ability  to  promote  the  induction  of  therapeutic  quantities  of  high-quality  tumor-targeting  CD8+  killer  T-cells  within  a  patient’s  own  body  has  been  a
major limitation of cancer immunotherapy.

Production  of  adequate  numbers  of  high-quality  CD8+  killer  T-cells  alone,  however,  is  insufficient  to  eradicate  all  cancer  cells.  One  of  the
difficulties in treating cancer, stems from the fact that cancer cells have the unique ability to evade the immune system; they camouflage themselves or
suppress  T-cell  attack  by  activating  immune  mechanisms  that  suppress  the  ability  of  T-cells  to  detect  or  attack  them.  They  accomplish  this  in  part  by
increasing  the  population  of  immune  suppressive  cells,  including  cells  known  as  regulatory  T-cells  (Treg)  as  well  as  other  cell  types,  within  the  tumor
microenvironment. An effective immunotherapy must overcome the tumor’s immune suppressive mechanisms in order to successfully locate and attack
the cancer cells.

Finally, cancers can be difficult to cure because they may recur even after successful initial treatment due to micro-metastatic (hidden) tumors that
are not completely eradicated after treatment and that eventually expand.  It is yet another task of the immune system to remain vigilant over a sustained
period to mitigate the risk of recurrence.  Such vigilance may be mediated by memory T-cells which serve as the immune system’s long-term memory. To
be durable and effective over an extended period after treatment, and to minimize the likelihood of cancer recurrence, an immunotherapy should enhance
this immune function as well.

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Index

Versamune Products

Versamune has shown the potential to overcome the challenges of immunotherapy

Versamune  is  a  proprietary  non-viral  (synthetic)  vector  or  T-cell  activating  platform  designed  to  overcome  the  challenges  of  current
immunotherapy and improve the treatment outcomes of patients with cancer. Versamune-derived products are based on positively charged (cationic) and
immune activating lipids that form spherical nanoparticles in aqueous media. These lipids include the R-enantiomer of 1,2-dioleoyl-e-trimethyl-ammonium-
propane (R-DOTAP). Cationic lipids are positively charged molecules that have a water-soluble portion (head group) attached to a water insoluble tail.
The water-soluble portion of the molecule has a positive charge and the water-insoluble portion is made up of hydrocarbon (also called fatty acid) chains.
The nanoparticles, which are coated with a positive charge, are deliberately sized to mimic viruses, facilitating detection by the body’s immune system and
uptake by dendritic cells.

To treat a specific cancer, the unique or overexpressed antigen found on the surface of the cancer cells is manufactured, then mixed with the

Versamune nanoparticles to create a pharmaceutical product for simple subcutaneous injection.

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Index

Versamune has the potential to promote dendritic cell update of antigens

One of the biggest challenges in developing a potent immunotherapy has been dendritic cell uptake. Versamune is designed specifically to be
taken  up  by  dendritic  cells  in  the skin.  As  noted,  Versamune  nanoparticles  are  sized  comparably  to  viruses  normally  taken  up  as  part  of  the  natural
function  of  the  dendritic  cells,  facilitating  efficient  uptake  of  the  Versamune-based  immunotherapy.  Studies  evaluating  the  uptake  of  Versamune
nanoparticles  by  dendritic  cells  and  epithelial  cells,  found  almost  exclusive  uptake  by  the  dendritic  cells.  Four  hours  following  a  single  subcutaneous
injection, about 80% of the dendritic cells in the draining lymph node were found to have taken up the Versamune-based immunotherapy.

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Versamune has the potential to promote efficient antigen processing and T-cell presentation

When dendritic cells take up Versamune nanoparticles they become activated, mature and begin recruiting additional dendritic cells. Once inside
the  dendritic  cell,  the tumor-associated  antigen  is  released  and  processed  into  the  requisite  small  peptides  (pieces  of  protein)  in  the  cell  compartment
known  as  the  cytoplasm.  An  important  potential  advantage  of  Versamune  is  its  ability  to  fuse  with  and  destabilize endosomes  in  the  cell,  promoting
efficient entry of the antigen into the cell compartment where processing can take place. Processed antigen is turned into peptides that then present in
both  the  MHC  class  I  and  class  II  pathways.  The  MHC  class  I pathway  is  critical  to  programming  CD8+  killer  T-cells  and  the  MHC  class  II  pathway  to
programming  CD4+  helper  T-cells  to  recognize  tumor  antigens.  When  Versamune-induced  maturation  occurs,  the  dendritic  cells  express  costimulatory
molecules on their surface, which facilitate the highly efficient uptake and presentation of antigens to the T-cells. We believe this activity overcomes one of
the  most  significant  limitations  of  current  immunotherapy  development  –  the  efficient  priming  of critical  CD8+  killer  T-cells  against  tumor  antigens.
Interestingly, Versamune has been demonstrated to promote presentation of antigens to CD4+ helper cells as well.

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Versamune has the potential to promote efficient activation and robust expansion of high quality polyfunctional CD8+ killer T-cells in Lymph
Nodes

Ultimately  mature  dendritic  cells  migrate  into  lymph  nodes,  small  glands  located  throughout  the  body  containing  white  blood  cells  including  T-
cells, where much of the key immunological activity pertaining to the priming and expansion of T-cells takes place.  In the lymph nodes the dendritic cells
present  the  tumor  antigens  to  T-cells  resulting  in  activation  or  priming  of  the  T-cells  to  recognize  the  particular  antigen  expressed  by  the  cancer.
Importantly,  Versamune  has  also  demonstrated  the  potential  to  upregulate  type  I  interferon  genes  (type  I  IFN),  which  are  responsible  for  critical
immunological  processes.  Upregulation  of  type  I  IFN  induces  an important  immunological  protein  called  CD69  that  facilitates  interactions  between  the
dendritic cell and T-cells in the lymph nodes.

Upregulation of type I IFN signaling also induces multiple immune messenger proteins called cytokines and chemokines that further signal T-cells
to infiltrate into the lymph nodes. Powerful activators of CD8+ killer T-cells, such as CCL2 and CXCL10 are documented to be induced by Versamune as
well. As the Versamune-induced production of chemokines appears to be restricted to the lymph nodes, the site of T-cell  activation, it provides for both
superior activation and expansion of CD8+ killer T-cells. Localization of these immune messengers within the lymph nodes and their limited presence in
the  blood  circulation  enhances  the  safety  of  the Versamune-based  immunotherapies.  Thus,  through  the  versality  of  its  mechanisms  of  action,  as
understood  to  date,  we  believe  that  Versamune  may  safely  promote  the  efficient  and  robust  expansion  in-vivo  of  large  numbers  of  highly  potent
(polyfunctional) CD8+ killer T-cells, both critical factors in developing a successful immunotherapy.

Versamune  has the potential to overcome immune suppression

Regulatory T-cells (Treg) are a sub-population of white blood cells normally responsible for recognizing normal healthy cells and for preventing
autoimmune  disease.  In  cancer however,  they  are  utilized  by  the  cancer  cells  to  suppress  immune  detection.  Versamune  may  contribute  to  significant
alteration  of  the  tumor  microenvironment  by  dramatically  reducing  the  Treg  to  killer  CD8+  T-cell  ratio  thus  making  the  tumors  more  susceptible  to
destruction  by  killer  T-cells.  Preclinical  studies  have  demonstrated  that  lowering  the  Treg  to  CD8+  killer  T-cell  ratio  with  polyfunctional  CD8+  killer  and
CD4+ helper T-cells promotes effective tumor lysis and regression.  Overcoming a tumor’s immune tolerance and minimizing its ability to evade detection
is a significant goal of a successful cancer immunotherapy that together with potent T-cell induction may translate to enhanced tumor elimination.

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In preclinical studies, Versamune (R-DOTAP) nanoparticles demonstrated a reduction in the Treg/CD8+ T-cell ratio

Results of Comparative Preclinical Testing of Versamune and Other Immunotherapies for the eradication of a Tumor

Using the tumor model, the Versamune based therapy was unique in its ability to reduce the tumor size and eventually completely regress the
tumors. The results from the Versamune based treatment are attributed to its ability to induce: (i) powerful activation of the critical immunological signaling
pathways,  (ii)  robust  production  of  both  CD8+  killer  and  CD4+  helper  T-cells,  and  (iii)  the  degradation  of  the tumor’s  protective  immune  suppression
mechanism.

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Versamune has the potential to induce Immune Memory

Memory T-cells allow the body to maintain tumor-recognizing and attacking T-cells for an extended period after treatment, with the ideal outcome
of  reducing  cancer recurrence.  Preliminary  studies  demonstrated  that  Versamune  protected  mice  that  had  experienced  tumor  regression  against  tumor
reestablishment even when the mice were reinjected with the same tumor cells. This sustained protection was evidence of immune memory: persistence
of  antigen-specific  T-cells  to  recognize  tumor  proteins  associated  with  a  particular  cancer,  as  the  animals  were  not  protected  against  establishment  of
different tumors. Evidence of the potential for Versamune-based  immunotherapies to induce immune memory was also demonstrated in a phase 1 clinical
trial in humans.

Enhancing  tumor-specific  memory  responses  to  monitor  for  tumor  antigens  and  eradicate  cancer  cells  well  after  initial  treatment  we  believe

provides potential for significant durable clinical benefit by possibly reducing the incidence of tumor recurrence and improving survival of patients.

Today, many cancer immunotherapies produce serious systemic autoimmune effects due to blockage of existing regulatory mechanisms such as
the immune checkpoints as well as inflammatory toxicities due to the increased presence and spikes of cytokines in the blood circulation. We believe the
mechanism of action of Versamune as well as its design have the potential to contribute to the localization of cytokines in the lymph nodes and specific
targeting  of  CD8+  killer  T-cells  to  antigens  in  tumor  tissue.  Therefore,  the  hypothesis  is  that  Versamune-based  therapies  may  exhibit  an  improved  and
favorable safety profile compared to currently available treatments.

As noted, Versamune is injected subcutaneously (under the skin) and its mechanisms of action are localized primarily in the lymph nodes. Further
supporting these observations are data demonstrating that negligible levels of Versamune-induced cytokines were detected in the blood of mice. Very low
quantities of Versamune were detected in the blood or in any organ outside of the lymph nodes.

Additionally, Versamune is broken down (hydrolyzed) in the body into fatty acids and excreted, showing in these preliminary studies that it could
mitigate the potential for short- or long-term accumulation of the nanoparticles. These preclinical observations have been confirmed by early clinical data
documenting that this localized and highly specific cascade of immune activity was associated with an absence of significant systemic toxicity at all doses
tested. In a phase 1 clinical trial designed to evaluate safety, all patients had transient swelling and redness at the injection site due to initiation of the
immunological  cascade  at  the  injection  site  which  cleared  completely  within  3-7  days  and  no  dose-limiting  toxicities  or  long-term  safety  concerns  were
observed.  Similarly,  in  our  ongoing  Phase  2  trials  in  combination  with  other  treatments,  no dose-limiting  toxicities  or  long-term  safety  concerns  were
attributed to PDS0101 since three of the four studies were initiated in 2020.

In  choosing  and  designing  a  Versamune-based  therapy  for  development,  careful  attention  is  paid  to  selecting  specific,  appropriate  antigens
because,  as  described  above, Versamune induces a strong T-cell response to the antigen. All of the antigens currently being evaluated in combination
with Versamune are present primarily in cancer cells which should therefore result in tumor-specific T-cell attack, thereby  minimizing off-target toxicity and
potential destruction of healthy cells and tissue.

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Versamune’ s potential as a cancer immunotherapy platform

The unique ability of Versamune to modulate and enhance numerous critical steps required for an effective immune response and to be combined
with targeted specific antigens found on tumor cells, offers several exciting opportunities to treat a variety of cancers. Further, its diverse mechanisms of
action together with its favorable safety profile suggest therapeutic promise when used in combination with other treatment modalities or immunotherapies
such as checkpoint inhibitors as well as in the single-agent monotherapy setting.

PDS0101: Human Papillomavirus (HPV)-Related Cancers

Despite  the  successful  introduction  of  HPV  preventive  vaccines,  HPV-related  cancers  remain  a  significant  component  of  the  global  cancer
burden. HPV infection occurs in both men and women and is associated with head and neck (oropharyngeal), cervical, anal, vaginal, vulvar and penile
cancers.

PDS0101 is our lead Versamune-based immunotherapy. PDS0101 combines Versamune with a mixture of short proteins (peptides) derived from
the cancer-causing HPV16 viral protein. HPV16 is the most pervasive and difficult to treat HPV amongst the 13 different high-risk, cancer-causing HPV
types. In a preclinical study in the most widely utilized animal HPV-cancer tumor model, PDS0101 uniquely induced complete regression of the  tumors
after a single sub-cutaneous injection. These data prompted a phase 1 open-label, dose-escalation, proof of concept study of PDS0101 in women with
cervical  intraepithelial  neoplasia  (CIN)  infected  with  high-risk  HPV  types.  The  data demonstrated  that  PDS0101  was  immunologically  active  at  all  three
doses  studied,  confirmed  induction  of  high  levels  of  active  HPV-specific  CD8+  killer  T-cells,  and  was  associated  with  clinical  regression  of  the  cervical
lesions  that  often occurred  rapidly.  These  results  suggest  that  PDS0101  activated  the  critical  mechanisms  in  humans  resulting  in  potent  T-cells  which
target and effectively kill human HPV-positive cancer cells. All patients who experienced regression remained disease-free over the 2-year retrospective
evaluation period, suggesting potential durability or memory of the immune response. The clinical data were presented at the 34th Annual Society for the
Immunotherapy  of  Cancer  Conference  in  November 2019 (Wood, et al., 2019).  Based on these encouraging preclinical and human data, PDS0101  is
being studied in multiple phase 2 clinical studies in various HPV-related cancers in collaboration with the NCI, Merck, MD Anderson Cancer Center and
Mayo Clinic. We are currently conducting 4 phase 2 clinical studies for PDS0101.

PDS0102: T-cell receptor gamma Alternate Reading frame Protein (TARP)-Related Cancers

The  TARP  antigen  is  strongly  associated  with  prostate  and  breast  cancers.  In  the  U.S.  450,000  patients  are  projected  to  be  diagnosed  with
prostate or breast cancer this year. Approximately 90% of prostate cancers and 50% of breast cancers overexpress the TARP tumor antigen. In a human
clinical trial, the National Cancer Institute demonstrated that its proprietary TARP antigens were effectively recognized by the immune system in prostate
cancer  patients  with  PSA  biochemical  recurrence  leading  to  a  notable  reduction  in  tumor  growth  rate.  In  preclinical  studies,  a  dramatically  enhanced
TARP-specific  killer  T-cell  response  was observed when our designed TARP antigens were combined with Versamune. As discussed further below,  in
November  2021,  we  entered  into  the  NCI  Patent  License  Agreement  with  the  U.S.  Department  of  Health  and  Human  Services,  as  represented  by the
National Cancer Institute, (“NCI”) of the National Institutes of Health (“NIH”).  We obtained a nonexclusive worldwide license to the patent rights for NCI’s
T-cell  receptor  gamma  alternate  reading  frame  protein  (“TARP”)  to  develop  and  commercialize  TARP  peptide-based  therapies  in  combination  with  our
Versamune technology for the treatment of Acute Myeloid Leukemia, prostate and breast cancers. Preclinical development is ongoing.

PDS0103: Mucin-1 (MUC1)-Related Cancers

MUC1 is highly expressed in multiple solid tumor types and has been shown to be associated with drug resistance and poor disease prognosis.
We are developing PDS0103, a Versamune-based therapy in combination with novel, highly immunogenic, agonist epitopes of the MUC1 oncogenic C-
terminal region to treat ovarian, breast, colorectal and lung cancers. In preclinical studies, similar to PDS0102, a dramatically enhanced MUC1-specific
killer T-cell response was observed when the novel antigens were combined with Versamune. Preclinical development is ongoing. 

Versamune  has  demonstrated  immunological  compatibility  with  a  wide  array  of  tumor  and  pathogenic  antigens.  While  our  current  oncology
pipeline  pairs  Versamune  with  4  different tumor  antigens,  to  address  over  10  cancer  types,  more  than  75  tumor  antigens  have  been  identified  and
reported. The versatility of the platform suggests that Versamune could work well with a wide range of identified tumor antigens and neoantigens. We are
exploring the expansion of our Versamune-based pipeline by pairing the technology with multiple tumor antigens to develop additional product candidates.

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Infectimune’ s potential as an infectious disease vaccine platform

PDS Biotechnology has developed a second cationic platform that is being applied to the development of infectious disease vaccines and this
specific  formulation  has  been trademarked  Infectimune.    It  has  been  formulated  to  activate  the  immune  system  to  induce  rapid  and  longer-lasting
neutralizing antibody responses for improved protection against infectious pathogens.  It has the potential to induce T-cell responses including memory T-
cell responses to provide the immune system with long-term memory and potential sustained protection against infectious pathogens over an extended
period  of  time  that  may  exceed  traditional  antibody-based  protection. It  could  provide  safe  and  effective  vaccines  that  are  well  tolerated  by  healthy
individuals.

PDS0201: Tuberculosis

PDS0201 combines the utility of the Versamune platform with bacillus Mycobacterium tuberculosis (M. tuberculosis) antigens. Tuberculosis (TB)
is the leading cause of death from a single infectious agent and is caused by the bacillus Mycobacterium tuberculosis, which is spread when people who
are sick with TB expel bacteria into the air. About a quarter of the world’s population is infected with M. tuberculosis and thus at risk of developing TB
disease.  It has been reported that a total of 1.5 million people died from TB in 2020. Worldwide, TB is one of the top 10 causes of death and the leading
cause from a single infectious agent (above HIV/AIDS).  It is estimated that 10 million people fell ill with TB worldwide - 5.7 million men, 3.2 million women
and 1.1 million children. There were cases in all countries and age groups. Multidrug-resistant TB (MDR-TB) remains a public health crisis and a health
security threat. The World Health Organization (WHO) estimates that there were 484,000 new cases with resistance to rifampicin – the most effective first-
line drug, of which 78% had MDR-TB. WHO has identified TB as a global priority and is focused on eradication of the disease. The only licensed vaccine
for prevention of TB disease was developed almost 100 years ago. PDS0201 is currently in preclinical development.

PDS0202: Universal influenza vaccine

According to the World Health Organization, influenza causes 3 to 5 million cases and approximately 290,000 to 650,000 deaths each year. Due

to the existence of multiple strains of flu, a new seasonal flu vaccination is usually developed to provide protection against the strains predicted to be
prevalent in an upcoming flu season. As a result, the protective efficacy of the current vaccines varies widely from season to season. We are developing a
new generation of flu vaccines with the potential to provide long-lasting, and broad protection against multiple strains of the virus. We believe that the
successful development of a universal flu vaccine could eliminate the need to create a vaccine to protect against each year’s predicted variants. Our
Infectimune platform is combined with computationally optimized broadly reactive antigen (COBRA) to potentially provide longer lasting, more effective
response to the influenza vaccine. The preclinical work is complete, and we are working to obtain nondilutive financing to fund the next steps in
development. In the fourth quarter of  2021, we entered into the UGA Patent License Agreement with the University of Georgia which provides a
nonexclusive license to the patent rights for the University of Georgia’s COBRA antigens to develop and commercialize a universal influenza vaccine
worldwide. The UGA Patent License Agreement includes customary milestone payments and royalties. Preclinical work is ongoing .

PDS0203: SARS-CoV-2 vaccine

Our Infectimune platform based COVD-19 vaccine combines our nanoparticle technology with a SARS-CoV-2 recombinant protein derived from

the spike (S) protein. Notably, the protein in this fully synthetic vaccine includes conserved and non-mutating regions of the virus. The vaccine has
demonstrated strong potential in preclinical studies to efficiently promote the induction of killer (CD8+) and helper (CD4+) helper T-cells that recognize
and induce immune responses against such non-mutating regions of the virus. The protein also includes regions of the spike protein that result in the
induction of neutralizing antibodies. Development is being conducted in Brazil by our collaborator Farmacore, who is fully responsible for the development
program, and clinical trials will be conducted in Brazil following all necessary regulatory approvals.  Farmacore is continuing to work on manufacturing and
scale up process for the antigen component of the vaccine.

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Versamune Development Strategy

The unique combination of high potency and excellent safety of the Versamune platform observed in preclinical studies was corroborated in the
successfully-completed 12-patient PDS0101 Phase 1/2a clinical trial.  In September 2019, we reported retrospective clinical outcome data from this trial.
Despite  most  of  the  patients  being  infected  with  multiple  HPV  strains  including  or excluding HPV 16, regression was seen in 8 out of 10 patients, with
complete regression of pre-cancerous lesions documented in 6 out of 10 patients at their first post-treatment evaluation, which occurred within 1-3 months
of  completing treatment.  In addition, the fact that no disease recurrence occurred over the two-year evaluation period strongly suggested a robust and
durable therapeutic immune response due to the induction of T-cells by PDS0101 administration that were  clinically active. As a result of this information
and the documentation in the trial of PDS0101’s ability to generate potent and biologically active CD8+ T-cells in-vivo, we focused our clinical strategy on
areas  of  more  severe  unmet  medical  need  in  which  PDS0101  is  combined  with  other  immune-modulating  agents,  including  checkpoint  inhibitors  and
standard of care e.g., chemoradiotherapy, to provide improved clinical benefit to patients.

We believe that rational design of combination immunotherapies using complementary agents that promote synergy with each other and reduce
the  potential  for  compounded toxicity  will  substantially  enhance  the  potential  for  combination  therapies  to  deliver  improved  clinical  benefit  for  cancer
patients.  Versamune  appears  to  activate  an  appropriate  combination  of  immunological  pathways  to  promote  strong  CD8+  T-cell  induction  while  also
altering  the  tumor  microenvironment  to  make  tumors  more  susceptible  to  T-cell  attack,  which  we  believe  makes  it  an  ideal  complement  to  checkpoint
inhibitors and other immune-modulating agents by enhancing their potency as part of combination therapies. In addition, the differences in mechanism of
action between Versamune and checkpoint inhibitors, as well as the initial demonstrated safety profile of Versamune, suggests that these combinations
may be potentially much better tolerated by patients than other combination therapies involving checkpoint inhibitors and other cancer treatments such as
immune-cytokines and chemotherapy.

VERSATILE-002: PDS0101 + KEYTRUDA ®

In  November  2020,  our  VERSATILE-002  Phase  2  clinical  trial  evaluating  the  combination  of  PDS0101  in  combination  with  Merck’s  anti-PD-1
therapy, KEYTRUDA® (pembrolizumab) which is the FDA-approved standard of care for first-line treatment of recurrent/ metastatic head and neck cancer
opened and is actively recruiting patients.  The clinical trial will evaluate the efficacy and safety of this therapeutic combination as a first-line treatment in
patients with recurrent or metastatic head and neck cancer and high-risk human papillomavirus-16 (HPV16) infection.

In this PDS Biotech-sponsored trial, patients whose cancer has returned or spread following initial treatment, will be able to avoid chemotherapy
and  take  this  combination  of  two  immuno-therapy  drugs.  Enrolling  patients  with  more  functional  immune  systems  that  have  not  been  compromised  by
extensive chemotherapy may allow improved efficacy of the combination.  Patients in the trial will receive a total of 5 cycles of combination therapy in the
context of standard of care KEYTRUDA® therapy administered every three weeks until disease progression.  The primary endpoint of VERSATILE-002 is
the objective response rate – or ORR – at six months following initiation of treatment.  There are two cohorts in the trial. Cohort 1 is for patients that are
yet  to  be  treated  with  a checkpoint  inhibitor  (CPI  naïve)  and  cohort  2  which  consists  of  patients  that  have  failed  checkpoint  inhibitor  therapy  (CPI
refractory).

In the February 2022, we announced we had achieved the preliminary efficacy milestone of at least four or more objective responses of the first

17 patients in the CPI naïve arm which now allows that arm to proceed to full enrollment. We also announced detailed preliminary safety data which
showed that the combination is likely safe and well tolerated without evidence of enhanced or significant toxicity in the first 18 patients in the CPI naïve
arm. We continue to enroll patients in the first stage of the CPI refractory arm.

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National Cancer Institute: PDS0101+ M9241 +Bintrafusp Alfa

In June 2020, the first patient was dosed under a PDS0101 Cooperative Research and Development Agreement (CRADA), in NCI, led Phase 2
clinical trial evaluating PDS0101 with NHS-IL12 (M9241), and M7824 (Bintrafusp Alfa), both of which are owned by EMD Serono (Merck KGaA) in patients
with advanced/refractory HPV-associated cancers who have failed prior treatment. In February 2021, we announced that the NCI’s Phase 2 clinical trial of
PDS0101  for  the  treatment  of  advanced/refractory  HPV-associated  cancers  achieved  its  preliminary  objective  response  target  in  patients  naïve  to
checkpoint inhibitors which allowed for full enrollment of approximately 20 patients in this group.  In addition, based on promising results in the CPI naïve
arm, the trial was amended to allow enrollment of a separate cohort of checkpoint inhibitor-refractory patients for assessment of  safety and activity of the
triple combination. Preliminary efficacy assessment of the triple combination in this added group of 20 checkpoint inhibitor refractory patients is ongoing. 
The NCI recently achieved the intended enrollment objective of 30 patients in the CPI refractory arm of the trial.  The trial has enrolled 45 patients and
enrollment in the trial will continue until the total enrollment of 56 patients is achieved.

Preclinical study results arising from this CRADA were recently published in the Journal for ImmunoTherapy of Cancer, 

Immunomodulation  to
enhance the efficacy of an HPV therapeutic vaccine  (Journal for ImmunoTherapy of Cancer 2020;8:e000612. doi:10.1136/ jitc-2020-000612) , indicating
that PDS0101 generated both HPV-specific T-cells and an associated antitumor response when used as a monotherapy.  When PDS0101 was combined
with two other novel clinical-stage anti-cancer agents, Bintrafusp Alfa and M9241, the preclinical data suggested that all three therapeutic agents worked
synergistically  to  provide  superior  tumor  T-cell  responses  and  subsequent  tumor  regression  when  compared  to  any  of  the  agents  alone  or  the  2-
component  combinations.    If  the  published  preclinical  data  demonstrating  powerful  activity  of  the  triple combination  is  successfully  confirmed  in  the
ongoing Phase 2 trial, this triple combination could form the basis of a unique platform providing improved cancer treatments across multiple cancers.

In June 2021, at the American Society of Clinical Oncology (ASCO) conference the NCI announced interim data in this trial which included, data
in both CPI naïve and refractory patients.  In the CPI naïve group 83% (5/6) of patients had an objective response, and 1 subject had achieved a complete
response with no evidence of disease.  100% of the CPI naïve patients were alive at a median duration of 8 months.  In the CPI refractory group 42%
(5/12) of patients had an objective response, and 1 subject had achieved a complete response with no evidence of disease.  10/12 (83%) of CPI refractory
patients were alive at a median duration of 8 months.  An update provided in January 2022 showed as of December 31, 2021, that >40 subjects had been
recruited into the trial and 30 HPV16-positive patients had been evaluated.  The median survival of all patients (3:1 CPI refractor to naïve) was 12 months
and progressing.  The historical survival of CPI naïve and CPI refractory advanced HPV-associated cancers when treated with CPI are 7-11 months and
3-4 months respectively.

MD Anderson Cancer Center (IMMUNOCERV): PDS0101+ Chemoradiotherapy

In October 2020, a third PDS0101 Phase 2 clinical study was initiated with The University of Texas MD Anderson Cancer Center and is actively
recruiting  patients.  This  clinical  trial  is  investigating  the  safety  and  anti-tumor  efficacy  of  PDS0101  in  combination  with  standard-of-care  chemo-
radiotherapy,  or  CRT,  and  their  correlation  with  critical  immunological  biomarkers  in  patients  with  locally  advanced  cervical  cancer.  PDS  believes  that
Versamune’s strong T-cell induction has the potential to meaningfully enhance efficacy of the current standard of care CRT treatment in this indication.
Enrollment rate in this trial had been negatively impacted by the COVID-19 pandemic and enrollment is on-going.

Mayo Clinic: PDS0101 Monotherapy and in combination with KEYTRUDA ®

In February 2022 we announced  the initiation of an Investigator-Initiated Trial (ITT), MC200710, for PDS0101 alone or in combination with the
checkpoint inhibitor, KEYTRUDA®, in patients with HPV-associated oropharyngeal cancer (HPV(+)OPSCC) at high risk of recurrence.  The trial is being
led  by  Drs.  David Routman, Katharine Price, Kathryn Van Abel, and Ashish Chintakuntlawar of Mayo Clinic, a nationally and internationally recognized
center of excellence for the treatment of head and neck cancers. We believe that this upcoming trial not only broadens our addressable patient population
of those affected by the increasing incidence of HPV(+)OPSCC, but also allows us to better understand the activity of PDS0101 alone or in combination
with KEYTRUDA® in earlier stages of disease.  This trial is currently open for enrollment.

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In  this  trial  treatment  will  be  administered  before  patients  proceed  to  transoral  robotic  surgery  (TORS)  with  curative  intent.  Treatment  in  this
setting is referred to as neoadjuvant treatment. PDS0101 has been shown to induce killer T-cells that target and kill HPV-positive cancers, either alone or
in combination with checkpoint inhibitors in preclinical studies, and in combination in clinical studies of patients with advanced recurrent/metastatic HPV-
associated  cancers.    This  trial  will  explore  whether  PDS0101  with  or  without  checkpoint  inhibition  may  increase  HPV-specific  anti-tumor  responses,
potentially resulting in tumor shrinkage, pathologic regression, and decreases in circulating tumor DNA (ctDNA).

Our  clinical  development  strategy  of  combining  PDS0101  with  standard  of  care  treatment  is  designed  to  mitigate  risk  in  our  proof-of-concept
phase  2  trials.    It  is  also designed  to  demonstrate  the  potential  for  significantly  enhanced  clinical  benefit  to  patients  over  the  standard  of  care,  without
compounding toxicity. If we achieve this goal, we believe that we will have a clear path towards commercialization of  PDS0101  in  multiple  indications. 
After initial commercial approval, our strategy of combining PDS0101 with standard of care also positions us for rapid market penetration and expansion.

Our  clinical  development  strategy  of  combining  PDS0101  with  standard  of  care  treatment  is  designed  to  mitigate  risk  in  our  proof-of-concept
phase  2 trials.    It  is  also  designed  to  demonstrate  the  potential  for  significantly  enhanced  clinical  benefit  to  patients  over  the  standard  of  care,  without
compounding toxicity. If we achieve this goal, we believe that we will have a clear path towards commercialization of PDS0101 in multiple indications. 

PDS0102

PDS0102  is  an  investigational  immunotherapy  utilizing  tumor-associated  and  immunologically  active  T-cell  receptor  gamma  alternate  reading
framed  protein  (TARP)  from  the  NCI. PDS0102  is  designed  to  treat  TARP-associated  cancers  including,  acute  myeloid  leukemia  (AML),  prostate  and
breast cancer. In our preclinical work, the administration of PDS0102, the Versamuine+TARP antigen combination led to the induction of  large numbers of
tumor targeted killer T-cells. In addition, the TARP tumor antigen alone has already been studied at the NCI in men with prostate cancer and been shown
to be safe, immunogenic with slowing tumor growth rates (NCT00972309). We are evaluating the next steps in the clinical development of PDS0102 and
are seeking nondilutive financings to move to human trials.

PDS0103

In  April  2020,  the  above  mentioned,  PDS-NCI  CRADA  was  expanded  beyond  PDS0101  to  include  clinical  and  preclinical  development  of
PDS0103.  PDS0103 is an investigational immunotherapy owned by us and designed to treat cancers associated with the mucin-1, or MUC-1, oncogenic
protein.    These  include  cancers  such  as  ovarian,  breast,  colorectal  and  lung  cancers.  PDS0103  combines  Versamune  with  novel  highly immunogenic
agonist epitopes of MUC-1 developed by the NCI and licensed by PDS. PDS0103 is currently in late preclinical development.

MUC1 is highly expressed in several types of cancer and has been shown to be associated with drug resistance and poor disease prognosis in
breast,  colorectal,  lung  and ovarian  cancers,  for  which  PDS0103  is  being  developed.    Expression  of  MUC-1  is  often  associated  with  poor  disease
prognosis, due in part to drug resistance. In preclinical studies, and similarly to PDS0101, PDS0103 demonstrated the ability to generate powerful MUC1-
specific CD8 killer T-cells.  In the first quarter of 2022, we held a pre-IND meeting with the FDA on PDS0103. We were satisfied with the responses and
believe we will submit our IND package in the third or fourth quarter of 2022 and will start human trials at the end of 2022.

Infectimune Development Strategy

We believe that the key differentiating attributes of the Infectimune platform technology, are strong induction of CD8+ and CD4+ T-cells as well as
antibodies,  which  can  be leveraged  to  improve  treatment  and  preventive  options  in  several  infectious  disease  indications.    Specifically,  the  COVID-19
pandemic  has  provided  a  unique  opportunity  to  highlight  Infectimune’s  potentially  transformative  utility  in  the development  of  more  effective  and  longer
lasting  protective  vaccines.    Our  expanded  infectious  diseases  pipeline  now  covers  three  infectious  pathogens  and  vaccines.    Current  preventive  and
prophylactic vaccine approaches and technologies predominantly focus on creating strong induction of antibody responses.  However, the induction of T-
cell responses, in addition to antibody responses, provides more durable and broad protection against infectious diseases.

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PDS0203: COVID-19

Farmacore is developing PDS0203 under a licensing agreement with PDS Biotechnology. PDS0203 is a second-generation Infectimune-based
COVID-19 vaccine candidate: a simple  subunit vaccine that utilizes a recombinant protein derived from the Spike protein of SARS-CoV-2, as opposed to
an  inactivated  virus-based  vaccine.    Preclinical  studies  of  PDS0203  have  shown  the  induction  of  strong  neutralizing  antibodies, virus-specific
polyfunctional  CD8+  (killer)  and  CD4+  (helper)  T-cells,  and  long-term  memory  T-cell  responses.    Initial  financial  support  for  the  program  has  been
provided by the Brazilian government for preclinical development.

On  February  22,  2021,  PDS  Biotechnology  and  Farmacore  announced  that  Blanver  Farmoquímica  e  Farmacêutica  S.A  joined  their  efforts
(collectively the “Consortium”) to develop and commercialize a novel COVID-19 vaccine in Latin America. Under the terms of the agreement, São Paulo-
based Blanver will manufacture, promote, distribute, and commercialize the Infectimune-based COVID-19 vaccine in Latin America.

On  March  11,  2021  we  announced  that  the  Consortium  received  a  commitment  from  the  Secretary  for  Research  and  Scientific  Training  of  the

MCTI, Brazil to fund up to approximately US$60 million to support the clinical development and commercialization of an Infectimune-based COVID-19.

The  progression  of  the  Farmacore  development  program  was  delayed  in  the  fourth  quarter  of  2021.    After  a  review  of  the  program  by  PDS  and
Farmacore,  the  agreement  with Farmacore  was  extended  for  six  months  to  May  31,  2022  to  provide  additional  time  to  Farmacore  to  commence
manufacturing  and  scale  up  of  drug  product  for  use  in  clinical  trials  and  any  necessary  process  development  work.    PDS  will  continue  to monitor
Farmacore’s progress with this program.

PDS0203 is being designed with the goal to potentially provide long-term and broad protection against infection from COVID-19 and its potential
mutations, based on the understood potential of Infectimune to prime the immune system to generate both antibodies for near term protection and T-cell
responses for long term protection against pathogens. Preclinical data of studies performed at the University of Kentucky indicates that PDS0203 elicits
the induction of highly active and potent virus-specific CD8 killer and CD4 helper T-cells within 14 days of treatment.  The study also showed induction of
the long-lasting virus-specific memory T-cells  necessary for longer term protection.  A 30-45-fold increase in COVID-19 specific T-cells was observed by
Day  14  when  compared  to  the  vaccine  without  Versamune.    These  preclinical  studies  also  indicated  induction  of  strong  anti-SARS-CoV-2 neutralizing
antibodies within 14 days, with a 20-25-fold increase when compared to the vaccine without Versamune.

The  peer-reviewed  scientific  publication  “ A  Newcastle  Disease  Virus  (NDV)  Expressing  a  Membrane-Anchored  Spike  as  a  Cost-Effective
Inactivated SARS-CoV-2 Vaccine” by Sun et al.  Vaccines (2020, volume 8, issue 4, page 771 ) also provides strong rationale for clinical development of an
Infectimune-based COVID-19 vaccine to maximize the full breadth of immune responses induced against SARS-CoV-2.   This research conducted at the
Mount Sinai Icahn School of Medicine, NY, indicated that there is powerful antibody induction by Versamune against SARS-CoV-2 at low antigen doses
suggesting  potential  for  an  effective  antigen  dose  sparing  COVID-19  vaccine.    These  data  are  based  on  preclinical  studies  combining  our  Infectimune
technology with an inactivated Newcastle disease virus (NDV)/SARS-CoV-2 vaccine (NDV vaccine) developed at Mount Sinai.

The preclinical study compared various treatment regimens in their ability to induce antibodies against SARS-CoV-2:

●

●

●

the NDV vaccine alone at doses of 5µg, 10µg and 20µg,

the NDV vaccine in combination with Versamune at 0.2µg, 1µg and 5µg,

and  the  NDV  vaccine  in  combination  with  Addavax,  an  adjuvant  well-known  for  its  ability  to  induce  powerful  antibody  responses,  at  0.2µg,
1µg and 5µg.

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As seen in Figure 3B of the publication, shown below, the NDV vaccine with R-DOTAP nanoparticles (Infectimune) yielded the strongest antibody
responses. Figure 3C, also shown below, highlighted Infectimune’s ability to induce the highest levels of neutralizing antibodies even at the lowest studied
antigen  dose  of  0.2µg.  Challenge  studies  also  indicated  that  the  Infectimune-containing  vaccine  conferred  protection  against challenge  with  the  SARS-
CoV-2 virus.

We understand this broader projected range of effective immunity to be a result of Infectimune’s activation of Type I interferons (IFNs) critical to
developing effective anti-viral immune responses, and also to promote presentation of the unique disease-associated protein or peptide to the appropriate
compartment  of  the  dendritic  cells  of  the  immune  system.  As  a  result  of  this  capability,  Infectimune  has  indicated there  is  potential  for  enhanced
immunogenicity in the context of dose sparing of both flu and COVID-19 antigens through strong induction of neutralizing antibodies.  Finally, in light of the
chemical composition of PDS0203 as a subunit vaccine, we believe manufacturing scale-up for global deployment may encounter fewer challenges than is
generally observed with more complex product candidates.

PDS0202; Universal Flu

Based  on  the  key  characteristics  of  Infectimune  we  are  progressing  development  of  PDS0202,  a  universal  influenza  vaccine  candidate,  which
combines  Infectimune  with  novel Computationally  Optimized  Broadly  Reactive  (COBRA)  influenza  vaccine  antigens  designed  by  renowned  influenza
expert Dr. Ted Ross and licensed from the University of Georgia.  PDS0202 preclinical development was supported by an agreement with the  National
Institute  of  Allergy  and  Infectious  Diseases  Collaborative  Influenza  Vaccine  Innovation  Centers,  or  CIVICs,  program,  with  a  goal  of  progressing  into  a
human clinical trial. Preclinical development studies were performed at three sites: our Princeton, NJ laboratories, The University of Kentucky School of
Medicine,  and  the  CIVICs  Center  for  Influenza  Vaccine  Research  for  High-Risk  Populations.    The  data  produced  in  the  preclinical  showed  significant
levels  of  hemagglutinin inhibition (HAI) titer levels when utilizing PDS0202 as compared to COBRA antigens alone ranging from 28x to 62x on various
strains of the H1N1 influenza virus.

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The preclinical data also showed all animals in the control group when challenged by the flu virus became sick and died while all animals treated

with either a 3mcg (high dose) or .012mcg (low dose) of PDS0102 remained alive and healthy.

We are seeking nondilutive financing for the next stage of clinical development.

PDS0201: Tuberculosis

In  December  2019,  we  entered  into  an  Amended  and  Restated  Material  Transfer  Agreement  (MTA)  with  Farmacore  to  develop  a  novel
tuberculosis,  or  TB,  immunotherapy  based  on  a combination  of  Farmacore’s  proprietary  TB  antigens  with  Infectimune.  In  preliminary  evaluations,  our
Infectimune-based  TB  product,  PDS0201,  demonstrated  highly  promising  TB-specific  T-cell  induction in-vivo.   Under  the  Farmacore  MTA,  we  will
undertake product development and Farmacore will conduct in-vivo preclinical studies to evaluate product efficacy.  Testing is to be performed in Brazil
although development was put on hold to prioritize PDS0203.  The term of the agreement extends until the end of the initial product testing period.  The
research plan has been delayed due to COVID-19 research restrictions in Brazil.

Since  our  inception  we  have  devoted  substantially  all  our  resources  to  developing  our  Versamune  and  Infectimune  platforms  and  our
Versamune and  Infectimune  -based  products,  advancing  preclinical  programs,  conducting  clinical  trials,  manufacturing  PDS0101  for  clinical  trials,  and
providing general and administrative support. We have funded our operations primarily from the issuance of common stock. We have not generated any
product revenue to date.  We have never been profitable and have incurred net losses in each year since our inception.

Our future funding requirements will depend on many factors, including the following:

●

●

●

●

●

●

the timing and costs of our planned clinical trials;

the timing and costs of our planned preclinical studies of our Versamune and Infectimune-based products;

the outcome, timing and costs of seeking regulatory approvals;

the impact of COVID-19 on our operations;

the terms and timing of any future collaborations, licensing, consulting or other arrangements that we may enter into;

the  amount  and  timing  of  any  payments  we  may  be  required  to  make  in  connection  with  the  licensing,  filing,  prosecution,  maintenance,
defense and enforcement of any patents or patent applications or other intellectual property rights; and

●

the extent to which we license or acquire other products and technologies.

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Leadership

We are led by a team of executives and directors with significant experience in drug discovery, development and commercialization.  Our founder
and  CEO  Frank  Bedu-Addo  has  been responsible  for  developing  and  launching  products  for  KBI  BioPharma  Inc.,  Schering-Plough,  Merck,  Elan
Corporation,  and  the  National  Cancer  Institute.    Our  other  co-founder  and  Chief  Scientific  Officer,  Dr.  Gregory  Conn  has  more  than  35  years  of  drug-
development experience, including development of antiviral and anticancer drugs through to commercialization. Our Chief Medical Officer, Dr. Lauren V.
Wood  has  over  30  years  of  translational  clinical  research  experience  and  held  senior positions  at  the  National  Cancer  Institute  Center  for  Cancer
Research.  Our  Chief  Financial  Officer,  Matthew  Hill  has  over  25  years  of  experience  in  finance  and  held  prior  roles  as  Chief  Financial  Officer  and  in
operational leadership roles at several public life science companies.

We are supported by scientific leaders in the field of vaccine development and oncology.  Dr. Lisa Rohan, one of our founders, is Chair of the
Scientific  Advisory  Board.    She  is  a  professor  in  the  department  of  Pharmaceutical  Sciences  at  the  University  of  Pittsburgh  where  she  also  holds
appointments in the Department of Obstetrics, Gynecology and Reproductive Sciences in the School of Medicine and the Clinical Translational Science
Institute.   Dr. Einstein, Professor and Chair in the Department of OB/ GYN & Women’s Heath at Rutgers University Medical School is an expert in HPV-
related pathogenesis, therapy and prevention of lower anogenital tract and gynecologic cancers.  He is an active leader for management guidelines and
translating  clinical  study  and  translational  data  for  the  World  Health  Organization,  American  Cancer  Society,  Society  of  Gynecologic  Oncology and  the
American College of Obstetrics and Gynecology.  Professor Leaf Huang, one of our founders, is a Distinguished Professor of Pharmaco-engineering and
Molecular  Pharmaceutics  at  the  Eshelman  School  of  Pharmacy,  University  of  North  Carolina  at  Chapel  Hill  pioneered  the  liposome  design  and
manufacture of cationic lipid vector nanoparticles as a delivery system for cDNA, mRNA, siRNA, proteins and peptides for tumor growth inhibition and for
vaccines in treating cancer and infectious diseases.  Dr. Olivera Finn is a Distinguished Professor of Immunology at the University of Pittsburgh School of
Medicine  and  she  discovered  the  MUC1  antigen.    Our  Principal  Investigator  for  the  PDS0101  Head  and  Neck  Trial  with  KEYTRUDA ®  for  first-line
treatment of recurrent/ metastatic Head and Neck Cancer is Dr. Jared Weiss, Associate Professor of Medicine, University of North Carolina Lineberger
Comprehensive Cancer Center, who is an expert in head and neck thoracic oncology with a focus on immunotherapeutic approaches for these diseases.

Facilities & Manufacturing and Commercial scale up

Product  candidates  using  our  Versamune  and  Infectimune  development  platforms  are  manufactured  using  a  readily  scalable,  fill-finish  process
with  well-defined  and  reproducible operations.  We  do  not  own  or  operate  cGMP  compliant  manufacturing  facilities  to  produce  any  of  our  product
candidates  and  we  do  not  have  plans  to  develop  our  own  manufacturing  operations  in  the  foreseeable  future.  We  currently  rely  on  third-party contract
manufacturing organizations to produce the amounts of our product candidates necessary for our preclinical research and clinical studies. As part of the
manufacture and design process for our product candidates, we rely on internal, scientific and manufacturing know-how and trade secrets and the know-
how and trade secrets of third-party manufacturers. We currently employ internal resources to manage our manufacturing contractors.

Our research and development activities are located at the Princeton Innovation Center BioLabs, 303A College Road East, Princeton, NJ 08540,
which  provides  first-rate development  facilities  for  biotech  companies.  All  animal  toxicology  and  efficacy  testing  are  done  via  third  party  contracts  and
collaborations to provide maximum flexibility and to minimize operational costs and overhead. This approach allows for independent validation of our data,
and we believe it has historically been a cost-efficient way to progress our development programs.

We do not intend to incur the costs of building, staffing and maintaining manufacturing facilities in the near term. The supply chain integrity was
not  negatively  impacted  by COVID-19 thus far.  Our management team has formulation, manufacturing and operations expertise, including past  senior
executive  management  roles  in  contract  drug  development  and  manufacturing.  Our  management  team  plans  to  utilize  its  expertise  and knowledge  to
identify suitable alternative contract manufacturers who will be capable of efficiently manufacturing our products.

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Regulatory Pathway

For our lead product candidate, PDS0101, the next step in the product development process are our ongoing Phase 2 clinical trials.  This process
is described further under “U.S. Product Development Process.”  The final protocols for all phase 2 clinical trials were submitted to the FDA prior to trial
initiation  and  information  for  all  three  trials  are  on  www.clinicaltrials.gov.    To  conform  to  the  FDA  electronic  Common  Technical  Document  format
requirement and submission of the CGMP material that will be used in the Phase 2 trials for PDS0101, we submitted a Chemistry, Manufacturing, and
Controls amendment to our Investigational New Drug application, related to PDS’s Phase 2 studies with PDS0101 to the FDA in 2020.

If Phase 2 clinical trials support further development, under standard FDA processes we would then need to complete a registrational Phase 2/3

clinical trial while continuing to gather other necessary application data and information for PDS0101 to seek marketing authorization.

We  anticipate  that  we  would  seek  marketing  authorization  from  the  FDA  for  our  product  candidates  through  the  Biologics  License  Application
pathway,  under  Section  351(a)  of  the  Public  Health  Service  Act.    This  process  and  the  requirements  are  described  further  under  “U.S.  Product
Development Process.”

For our earlier stage, preclinical product candidates PDS0102 and PDS0103, we plan to work to develop data with the goal of progressing to an
IND submission in 2022 or early 2023 and progressing clinical development to first-in-human trials with these products.  We have engaged with the FDA
and  received  useful  initial  feedback  on  the  clinical  trial  design  for  the  PDS0103  program  and  this information  will  influence  our  strategy  for  regulatory
submissions and the protocol development.

Intellectual Property

PATENTS

We seek to maintain high barriers to entry around our product candidates and the markets in which they are utilized by using a multiple layered
approach to our patents, patent applications, and substantial know-how and trade secrets related to the Versamune  platform.  We strive to protect and
enhance  the  proprietary  technology,  inventions and  improvements  that  are  commercially  important  to  its  business,  including  seeking,  maintaining,  and
defending patent rights. We also rely on trade secrets relating to its platform and on know-how, continuing technological innovation to develop, strengthen
and maintain its proprietary position in the vaccine field. In addition, we rely on regulatory protection afforded through data exclusivity, market exclusivity
and  patent  term  extensions  where  available.  We  also  utilize  trademark protection  for  our  company  name  and  we  expect  to  do  so  for  products  and/or
services as they are marketed.

PDS  has  developed  numerous  patents  and  patent  applications  and  owns  substantial  know-how  and  trade  secrets  related  to  its  Versamune

platform. As of December 31, 2021, PDS holds six (6) U.S. patents with granted claims directed to its platform technology and sixteen (16) pending U.S.
patent applications. These issued patents will expire in 2028, 2029, 2031 and 2033. Should the more recently submitted patent applications currently in
prosecution be issued, these will expire in 2033 through 2037 assuming no patent term extensions are granted. As of March 1, 2022, PDS holds seventy
(70) issued foreign patents and thirty-eight (38) pending or published foreign patent applications.  Most of our international issued patents are issued in
multiple  countries  including  Europe,  Japan  and  Australia,  and  all  of  which  cover compositions  of  matter  and  methods  of  use  related  to  its  platform
technology. These issued patents will expire in 2031-2037, or later if patent term extension applies. Most recently, the USPTO allowed an application for
our HPV 16 immunotherapy which when granted will run until October 2037.

Licensed Patents

We  have  an  exclusive  worldwide  license  from  Merck  &  Cie  to  (R)-DOTAP  and  its  crystal  forms,  manufacturing  methods,  and  pharmaceutical
compositions using the compounds., which are owned by Merck Patent GmbH, for use in our immunotherapy compositions and immunotherapies. Merck
& Cie has informed us that it has rights to license these patent families through an intra-company agreement with Merck Patent GmbH.  These licensed
patents are significant to Versamune and Infectimune platforms, as they are directed to the currently utilized Versamune ingredient.

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Index

We have licensed patented antigens from the US government for use  worldwide in our cationic lipid immunotherapies.  We have licensed T-cell
receptor gamma alternate reading frame protein (“TARP”) from the National Cancer Institute (“NCI”)  to develop and commercialize TARP peptide-based
therapies  in combination  with  the  Company’s  Versamune  technology  and  any  other  of  the  Company’s  proprietary  technologies  for  prostate  and  breast
cancers and Acute Myeloid Leukemia.  These patents are directed to Immunogenic Peptides and Peptide Derivatives for The Treatment of Prostate and
Breast Cancer Treatment and Multi-Epitope TARP Peptide Vaccine and Uses Thereof. These antigens are incorporated in PDS0102 with Versamune. 
We  have  licensed  mucin-1  (“MUC1”) novel  highly  immunogenic  agonist  epitopes  of  MUC1  developed  by  the  National  Cancer  Institute.  MUC1is  highly
expressed in multiple solid tumors and has been shown to be associated with drug resistance and poor disease prognosis in breast, colorectal, lung and
ovarian cancers, for which PDS0103 is being developed.   We have been granted patents and are pursuing additional patents that cover compositions and
methods of use of cationic lipid immunotherapies with each of the licensed technologies.

We entered into a non-exclusive agreement to license COBRA universal influenza antigens with the University of Georgia Research Foundation
to develop, manufacture and use COBRA antigens in a clinical trial for a universal influenza vaccine worldwide.  These antigens are developed by Dr.
Ted  Ross  at  the  University  of  Georgia.    We  believe  that  the  combination  of  these  antigens  with  our  proprietary  Infectimune  technology,  representing
PDS0202, has the potential to induce a broad immune response as a universal flu vaccine, based on preclinical development studies performed to date.

Trade Secrets and Other Proprietary Information

In contrast to patent protection or regulatory exclusivities, trade secret protection is a form of intellectual property that does not require disclosure
of the subject information as part of the process, but instead depends on maintaining the subject information as strictly confidential.  Companies may in
some circumstances rely on trade secrets to protect certain aspects of their proprietary know-how and technological advances, especially where they do
not  believe  patent  protection  is  appropriate  or  obtainable.  Trade  secret  protection  depends  in  part  on  confidentiality  agreements  with  employees,
consultants,  outside  scientific  collaborators, sponsored  researchers  and  other  advisors  that  prohibit  disclosure  of  designated  proprietary  information. 
Trade  secrets  can  be  difficult  to  protect.    Confidentiality  agreements  may  not  succeed  in  preventing  a  person  or  parties  from  disclosing confidential
information,  and  in  that  event  the  rights  of  the  trade  secret  holder  are  subject  to  the  viability  of  an  adequate  remedy  at  law,  typically  under  state  law
modeled on the Uniform Trade Secrets Protection Act, to stop, mitigate or compensate for the unauthorized disclosure of confidential information.  Costly
and time-consuming litigation could be necessary to enforce and determine the scope of the proprietary rights.  Finally, there is always at least some risk
that others may independently discover the trade secrets and proprietary information.

Material License Agreements and Research and Development Agreements

Patent License Agreements with National Institutes of Health.

Effective January 5, 2015, we entered into a Patent License Agreement (the “Patent License Agreement”) as Amended by First Amendment to
Patent  License  Agreement  (“First Amendment”)  of  August  5,  2015,  with  an  agency  within  the  Department  of  Health  and  Human  Services  (“HHS”),
pursuant  to  which  NIH  granted  PDS  a  nonexclusive  license  to  certain  patent  rights  for  the  development  of  a  therapeutic  cancer  vaccine specifically  in
combination with PDS’s proprietary Versamune technology for ovarian, breast, colon and lung cancers. The Patent License Agreement expires when the
last licensed patent expires if the Patent License Agreement is not terminated prior to that date. NIH may terminate the Patent License Agreement if PDS
is  in  default  in  the  performance  of  any  material  obligation  under  the  Patent  License  Agreement.  PDS  may  unilaterally  terminate  the  Patent  License
Agreement in any country or territory upon sixty (60) days written notice.

Under the Patent License Agreement and First Amendment PDS agreed to pay NIH: (a) a noncreditable, nonrefundable royalty in the amount of
$30,000 upon execution of the Patent License Agreement; (b) a noncreditable, nonrefundable royalty in the amount of $60,000 upon execution of the First
Amendment to Patent License Agreement (c) a nonrefundable minimum annual royalty of $5,000; (d) earned royalties of two percent (2%) on net sales,
reducible by a half percent (0.5%) for any earned royalties PDS must pay to third parties; (e) benchmark royalties as follows: (i) $25,000 upon successful
completion of each Phase 2 Clinical Studies of a licensed product for breast, colon, lung or ovarian cancer within each licensed territory; (ii) $50,000 upon
initiation of the first Phase 3 Clinical Trial of a licensed product for breast, colon, lung or ovarian cancer within each licensed territory; (iii) $750,000 upon
the  first  commercial  sale  in  the  licensed  territory  utilizing  and/or  directed  to  licensed  product(s)  and/or  licensed  process(es)  within  the  licensed  patent
rights for breast, colon, lung or ovarian cancer; and (f) additional sublicensing royalties for each sublicense required to be approved by NIH of four percent
(4%) on the fair market value of any consideration received for granting such sublicense.

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Effective  as  November  5,  2021,  we  entered  into  a  Patent  License  Agreement  (the  “NCI  Patent  License  Agreement”)  with  the  U.S.  Department  of
Health  and  Human  Services,  as represented  by  NCI  of  NIH.    Pursuant  to  the  NCI  Patent  License  Agreement,  the  Company  obtained  a  nonexclusive,
worldwide  license  to  the  patent  rights  for  TARP  to  develop  and  commercialize  TARP  peptide-based  therapies  in  combination  with  the  Versamune
technology  and  any  other  of  our  proprietary  technologies  for  prostate  and  breast  cancers  and  Acute  Myeloid  Leukemia.    The  NCI  Patent  License
Agreement  expires  when  the  last  licensed  patent  expires  if  the  Patent  License  Agreement  is  not terminated  prior  to  that  date.  NCI  may  terminate  the
Patent License Agreement if we are in default in the performance of any  material  obligation  under  the  Patent  License  Agreement.  We  may  unilaterally
terminate the NCI Patent License Agreement in any country or territory upon sixty (60) days written notice. Under the NCI Patent License Agreement, we
agreed  to  pay  NCI  certain  non-creditable,  nonrefundable  license  issue  royalties,  unreimbursed  patent  expenses  for  the  licensed  patent  rights, a
nonrefundable minimum annual royalty, earned royalties as a percentage of net sales and benchmark royalties.

DOTAP Chloride Enantiomer License Agreement with Merck Eprova AG.

Effective November 1, 2008, we entered into a DOTAP Chloride Enantiomer License (the “DOTAP License Agreement”) with Merck Eprova AG
(“EPRO”), pursuant to which we obtained an exclusive license from EPRO technology to undertake development of products relating to the R-enantiomer
and  S-enantiomer  of  DOTAP  Chloride  for  worldwide  commercialization  in  a  composition  and  method  of  inducing  an  immune  response  in  a  subject  by
administering at least one cationic lipid with or without an antigen. The DOTAP License Agreement expires on a licensed product-by-licensed product and
country-by-country basis until the expiration of the obligation to pay royalties applicable to such  licensed  product  in  such  country.  We  have  the  right  to
unilaterally terminate the DOTAP License Agreement (in its entirety or on a licensed product-by-licensed product or country-by-country basis) at any time
for  any  reason  upon  prior  written notice.  We  paid  a  one-time  royalty  of  CHF  100,000  as  a  result  of  the  reverse  merger  between  PDS  and  Edge
Therapeutics, Inc.

Cooperative  Research  and  Development  Agreement  for  Intramural-PHS  Clinical  Research  with  The  U.S.  Department  of  Health  and  Human
Services.

Effective February 2, 2016, we entered into a Cooperative Research and Development Agreement (the “ CRADA”) with the U.S. Department of
Health and Human Services, as represented by the National Cancer Institute (“NCI”), pursuant to which the parties agreed to perform certain research and
development  activities  as  defined  by  the  exhibited Research  Plan.  The  principal  goal  of  the  CRADA  is  to  determine  whether  our  Versamune
immunotherapeutic technology will be effective for enhancing delivery of cancer vaccines or viral vaccines or other immunotherapies developed by the
Vaccine Branch, Center for Cancer Research, NCI, in mouse models and in human clinical studies. The CRADA provides for development, testing and
studies  to  be  conducted  in  conjunction  with  the  Vaccine  Branch  involving  Versamune  and  Multi-epitope  (ME)  T  cell  receptor  gamma  alternate  reading
frame  protein  peptide  (TARP)  to  develop  a  treatment  for  prostate  cancer  using  autologous  dendritic  cells  and  co-  administered  locally  with  ME  TARP
peptides co-formulated with Versamune immunotherapeutic technology in a non-cellular vaccine platform.

The term of the CRADA is five (5) years, starting February 2, 2016. Pursuant to Appendix A, PDS agreed to provide up to $1,000,000 but no less
than $500,000 during the first year of the CRADA and up to $1,000,000 but no less than $750,000 per year for the remaining years of the CRADA for NCI
to use in connection with acquiring technical, statistical, and administrative support for the clinical research activities, as well as to pay for supplies and
travel  expenses  and,  upon  consent  of  the  parties,  to  acquire  support  for  a  postdoctoral  research  fellow  to  conduct  additional  preclinical  studies.  The
CRADA  may  be  terminated  by  either  party  at  any  time  by  mutual written  consent.  Either  party  may  unilaterally  terminate  the  CRADA  at  any  time  by
providing sixty (60) days written notice. If we terminate prior to the completion of all approved or active study protocol(s) pursuant to the CRADA, we must
supply enough  study  test  product  to  complete  these  study  protocol(s)  unless  termination  is  for  safety  reasons.  If  the  CRADA  is  mutually  or  unilaterally
terminated by us before its expiration, we must pay non-cancellable obligations for personnel for a period of six (6) months after the termination date or
until the expiration date of the CRADA, whichever is sooner. If we suspend development on the test article without the transfer of its active development
efforts, assets, and obligations to a third party within ninety (90) days of discontinuation, NCI may continue development. In such event, we must transfer
all information necessary to enable NCI to contract for the manufacture of the test article and grant NCI a nonexclusive, irrevocable, worldwide, paid-up
license regarding same.

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Index

Cost Reimbursement Agreement with University of Kentucky Research Foundation - I. with University of Kentucky Research Foundation - I.

Effective  November  1,  2015,  we  entered  into  an  annual  Research  Agreement  (the  “Cost  Reimbursement  Agreement”)  with  the  University  of
Kentucky Research Foundation (“UKRF”), pursuant to which UKRF agreed to test PDS’s preclinical and clinical-stage formulations based on HPV, TARP,
MUC-1, Melanoma antigens as specified more fully in the statement of work. The Cost Reimbursement Agreement has been renewed annually, and was
renewed on July 1, 2021, for an anticipated cost of $404,502. The agreement terminates on June 30, 2022, unless extended by written mutual agreement
of  parties  or  is  terminated  by  one  of  the  parties.  Either  party  may  terminate  the  Cost Reimbursement  Agreement  for  any  reason  with  thirty  (30)  days
written notice.

Cost Reimbursement and Sponsored Agreement with University of Kentucky Research Foundation - II.

Effective  November  1,  2015,  we  entered  into  an  annual  Research  Agreement  (the  “Cost  Reimbursement  Agreement”)  with  the  University  of
Kentucky Research Foundation (“UKRF”), pursuant to which UKRF agreed to test PDS’s preclinical and clinical-stage formulations based on HPV, TARP,
MUC-1, Melanoma antigens as specified more fully in the statement of work. The Cost Reimbursement Agreement has been renewed annually, and was
renewed on July 1, 2021, for an anticipated cost of $13,998. The agreement terminates on June 30, 2022, unless extended by written mutual agreement
of  parties  or  is  terminated  by  one  of  the  parties.  Either  party  may  terminate  the  Cost Reimbursement  Agreement  for  any  reason  with  thirty  (30)  days
written notice.

Clinical Trial Collaboration and Supply Agreement with MSD International GmbH.

Effective  May  19,  2017,  we  entered  into  a  Clinical  Trial  Collaboration  and  Supply  Agreement  (the  “CTCSA”)  with  MSD  International  GmbH
(“Merck”) pursuant  to  which  we  and  Merck  agreed  to  collaborate  in  a  Phase  2  clinical  trial  to  evaluate  the  safety,  and  preliminary  efficacy  of  the
concomitant and/or sequenced administration of the combination of a Merck compound (i.e., pembrolizumab, a humanized anti-human PD-1 monoclonal
antibody) and our compound (i.e., PDS0101, a cationic lipid-based therapeutic vaccine combining HPV peptides) in treatment of patients with recurrent or
metastatic head and neck cancer and high-risk human papillomavirus-16 (HPV 16) infection. The term of the CTCSA commenced on May 19, 2017 and
will  continue  until  the  earlier  of  (i)  delivery  of  the  final  study  report  and  (ii)  Study  Completion  (i.e.,  upon  database  lock  of  the  Study  results),  or until
terminated  by  either  party.  In  the  event  the  CTCSA  is  terminated  by  Merck  upon  a  material  breach  by  PDS,  PDS  must  reimburse  Merck  for  its  direct
manufacturing costs, such as manufacturing fees, raw materials, direct labor, freight and duty,  factory overhead costs and its indirect manufacturing costs,
such as allocations of indirect factory overhead and site support costs. This agreement was amended on October 28, 2019 to reflect the trial will be for
first in line treatment of disease.

On October 28, 2019, we entered into an amendment to the clinical trial collaboration agreement with Merck to evaluate the combination of our
lead Versamune-based  immunotherapy,  PDS0101,  with  Merck’s  anti-PD-1  therapy,  KEYTRUDA®  (pembrolizumab),  in  a  Phase  II  clinical  trial.  The
modification to the clinical trial design to evaluate PDS0101 in combination with KEYTRUDA® as first-line treatment comes as a result of Merck’s approval
by the FDA on June 10, 2019 for first line treatment of patients with metastatic or unresectable recurrent HNSCC using KEYTRUDA® in combination with
platinum and fluorouracil (FU) for all patients and as a single agent for patients whose tumors express PD-L1 as determined by an FDA-approved test.
The  trial  was  initiated  in  November  of  2020  to  evaluate  the  efficacy  and  safety  of  the  combination  as  a  first-line  treatment  in  patients  with recurrent  or
metastatic head and neck cancer and high-risk human papillomavirus-16 (HPV16) infection.

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Other Research and Development Agreements

Cooperative  Research  and  Development  Agreement  for  Intramural-PHS  Clinical  Research  with  The  U.S.  Department  of  Health  and  Human
Services.

Effective April 22, 2019, PDS entered into a Cooperative Research and Development Agreement (the “ CRADA”)  with the  U.S.  Department  of
Health and Human Services, as represented by the National Cancer Institute (“NCI”), pursuant to which the parties agreed to perform certain research and
development activities as defined by the exhibited Research Plan. Under the agreement, PDS will collaborate with the NCI’s Genitourinary Malignancies
Branch  (GMB)  and  Laboratory  of  Tumor  Immunology  and  Biology  (LTIB)  with  plans  to  conduct  a  Phase  2  clinical  trial  evaluating  PDS0101  with  novel
immune-modulating agents M7824 and NHS-IL12 being studied at NCI as part of a CRADA with EMD Serono (Merck KGaA). The phase 2 clinical trial
was  initiated  in  June  of  2020.  The  CRADA  also  involves  preclinical evaluation  of  PDS0101  in  combination  with  other  therapeutic  modalities  upon  the
mutual agreement of both parties. In April 2020, this agreement was amended to include PDS0103, in preclinical and clinical development for treatment of
ovarian, breast, colorectal and lung cancers.

The  term  of  the  CRADA  is  five  (5)  years,  starting  April  22,  2019.  Pursuant  to  Appendix  A,  we  agreed  to  provide  $110,000  annually,  the  first
payment of which is to be made on the first anniversary the of the CRADA Effective date or upon the initiation of a Phase II clinical trial as the NIH Clinical
Center,  whichever  comes  first  for  NCI  to  use  in  connection  with  acquiring  technical,  statistical,  and  administrative  support  for  the  clinical  research
activities, as well as to pay for supplies and travel expenses and infrastructure costs. The CRADA may be terminated by either party at any time by mutual
written  consent.  Either  party  may unilaterally  terminate  the  CRADA  at  any  time  by  providing  sixty  (60)  days  written  notice.  If  we  terminate  prior  to  the
completion  of  all  approved  or  active  study  protocol(s)  pursuant  to  the  CRADA,  we  must  supply  enough  study  test  product  to complete  these  study
protocol(s) unless termination is for safety reasons. If the CRADA is mutually or unilaterally terminated by PDS before its expiration, we must pay non-
cancellable  obligations  for  personnel  for  a  period  of  six  (6)  months after  the  termination  date  or  until  the  expiration  date  of  the  CRADA,  whichever  is
sooner. If we suspend development on the test article without the transfer of its active development efforts, assets, and obligations to a third party within
ninety (90) days of discontinuation, NCI may continue development. In such event, we must transfer all information necessary to enable NCI to contract
for the manufacture of the test article and grant NCI a nonexclusive, irrevocable, worldwide, paid-up license regarding same.

Amended and Restated Material Transfer Agreement with Farmacore Biotechnology

On  December  4,  2019,  we  entered  into  an  Amended  and  Restated  Material  Transfer  Agreement  with  Farmacore  Biotechnology  to  develop  a
novel tuberculosis (TB) immunotherapy based on Farmacore’s proprietary TB antigens and Versamune.  A prior material transfer agreement under which
preliminary work commenced was Amended and Restated due to promising early preclinical results and to progress to the next development phase.  We
will undertake product development and Farmacore will conduct preclinical studies to evaluate the  efficacy  of  the  product.    The  term  of  the  agreement
extends until the end of the product testing period and may be terminated at any time by either party with 30 days’ notice.  This research plan has been
delayed by the COVID-19 research restrictions in Brazil.

License and Collaboration Agreement with Farmacore Biotechnology

In  June  2020,  we  announced  a  second  collaboration  with  Farmacore  to  develop  PDS0204,  a  vaccine  to  prevent  COVID-19,  combining
Versamune with Farmacore’s recombinant SARS-CoV-2  antigen.  Based on the highly promising antibody and T-cell data generated with PDS0203, we
and Farmacore amended the agreement to prioritize the advancement of PDS0203 to human clinical trials.  Farmacore will retain commercialization rights
i n Latin  America  and  revenues  from  Latin  American  sales  will  be  shared  between  us  and  Farmacore.    Under  the  Agreement,  Farmacore  leads  the
regulatory  and  clinical  trial  effort  and  we  contribute  scientific  expertise  and  operational  support.    The Agreement  term  extends  until  the  next  phase  of
development and may be terminated with 30 days’ notice.  This Agreement has been extended through May 31, 2022.

Option to License with the University of Georgia Research Foundation of Georgia Research Foundation

On October 25, 2021, we entered into a non-exclusive agreement to license Computationally Optimized Broadly Reactive Antigen (COBRA) with
the University  of  Georgia  Research  Foundation.  This  agreement  allows  us  to  develop,  manufacture  and  use  COBRA  antigens  in  a  clinical  trial  for  a
universal  influenza  vaccine  worldwide.    The  term  of  the  agreement  extends  twelve  months  after  initiation of  first  Phase  1  clinical  trial  and  may  be
extended upon agreement of the parties.  We may convert the option to a full agreement any time prior to the conclusion of the term.

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COVID-19 Impact on Business and Operations

In December 2019, a novel (new) coronavirus known as SARS-CoV-2 was first detected in Wuhan, Hubei Province, People’s Republic of China,
causing outbreaks of the coronavirus disease, known as COVID-19, that has now spread globally. On January 30, 2020, the World Health Organization
(WHO) declared COVID-19 a public health emergency. The Secretary of Health and Human Services declared a public health emergency on January  31,
2020, under section 319 of the Public Health Service Act (42 U.S.C. 247d), in response to the COVID-19 outbreak. On March 11, 2020, the WHO declared
COVID-19  a  pandemic  and  on  March  13  the  President  declared  a  national  emergency  in  response  to the  pandemic.  The  full  impact  of  the  COVID-19
pandemic is unknown and rapidly evolving. The COVID-19 pandemic has and could continue to negatively affect the Company’s liquidity and operations. 
Since the pandemic began, variants of the disease have caused continuous waves of widespread transmission and illness, causing broad economic and
supply  chain  disruptions.    The  FDA  issued  and  since  updated  guidance  to  assist  sponsors  in  assuring  the  safety  of  trial  participants,  maintaining
compliance  with  Good  Clinical  Practice  (GCP)  and  minimizing  risks  to  trial  integrity.    Clinical  trial  sites  have  implemented  institution-specific  measures
securing the safety of patients and staff to ensure the integrity of the trials in the face of the ongoing pandemic. The evolving COVID-19 pandemic has
impacted  the  pace  of  enrollment  in  clinical  trials  in  general  and  we  may  be  negatively  affected  with  our  trials.  COVID-19  related  travel  and  other
restrictions  may  also  impact  the potential  for  on-site  monitoring  visiting  and  audits  and  inspections  by  us,  third  parties,  and  regulators.  There  may  be
shortages of site personnel and equipment necessary for the timely completion of our trials. We are providing support to address these challenges, but
these mitigation measures may not overcome the obstacles that the pandemic has wrought which continue to impede progress of clinical trials.

Competition

The biotechnology and pharmaceutical industries are characterized by intense competition to develop new technologies and proprietary products.
We  are  aware  of  various established  companies,  including  major  pharmaceutical  companies,  broadly  engaged  in  immunotherapies  and  vaccines  in
research and development that may compete directly with the products we are developing including Jansen Pharmaceuticals (part of J&J), Sanofi-Aventis,
GlaxoSmithKline  plc,  Merck  and  Pfizer,  among  others.  In  addition,  there  are  also  many  development-stage  biotechnology  companies  in  various
immunotherapy  and  vaccine  development  including,  but  not  limited  to  Inovio, Advaxis,  Kite  Pharma,  Hookipa,  Moderna,  ZIOPHARM  Oncology,  Heat
Biologics, Harpoon Therapeutics, Oncosec Medical, BioNTech, Osivax, Medicago, Vaxart, and Flugen. If one or more of these companies is successful in
developing their technologies, it could materially impact our business.

While we believe that the Versamune and Infectimune platforms provide us with competitive advantages, we face competition from many different
sources,  including  biotechnology and  pharmaceutical  companies,  academic  institutions,  government  agencies,  as  well  as  public  and  private  research
institutions.  Any  products  that  we  may  commercialize  will  have  to  compete  with  existing  products  and  therapies  as  well  as  new  products and
immunotherapies that may become available in the future.

We anticipate that it will face intense and increasing competition as new immunotherapies enter the market and advanced technologies become
available.  PDS  expects  any  products that  it  develops  and  commercializes  to  compete  based  on,  among  other  things,  efficacy,  safety,  convenience  of
administration and delivery, price, availability of therapeutics, the level of generic competition and the availability of reimbursement from government and
other third-party payors.  PDS’s competitors may obtain FDA or other regulatory approval for their products more rapidly than it may obtain approval for its
products, which could result in our competitors establishing a strong market position before it is able to enter the market. In addition, our ability to compete
may be affected in many cases by insurers or other third-party payors seeking to encourage the use of generic products.

Government Regulation and Product Approval

Federal, state and local government authorities in the United States and in other countries extensively regulate, among other things, the research,
development,  testing, manufacturing,  quality  control,  approval,  labeling,  packaging,  storage,  record-keeping,  promotion,  advertising,  distribution,  post-
approval  monitoring  and  reporting,  marketing  and  export  and  import  of  biological  and  pharmaceutical  products  such  as those  we  are  developing.  Our
product  candidates  must  be  approved  by  the  FDA  before  they  may  be  legally  marketed  in  the  United  States  and  by  the  appropriate  foreign  regulatory
agency before they may be legally marketed in foreign countries. Generally, its activities in other countries will be subject to regulation that is similar in
nature and scope as that imposed in the United States. The process for obtaining regulatory marketing approvals and the subsequent compliance with
appropriate federal, state, local and foreign statutes and regulations require the expenditure of substantial time and financial resources.

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U.S. Product Development Process

In  the  United  States,  the  FDA  regulates  biological  drug  products  under  the  Federal  Food,  Drug  and  Cosmetic  Act,  or  FDCA,  and  the  Public
Health Service Act, or PHSA, and implementing regulations. Products are also subject to certain other federal, state and local statutes and regulations.
The process of obtaining regulatory approvals and the subsequent compliance with appropriate federal, state, local and foreign statutes and regulations
requires 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  post-approval,  may subject  an  applicant  to  administrative  or  judicial  action.  FDA  decisions  or  enforcement
actions could include, among other actions, refusal to approve pending applications, withdrawal of an approval, a clinical hold, warning letters, product
recalls or withdrawals from the market, product seizures, total or partial suspension of production or distribution injunctions, fines, refusals of government
contracts, restitution, disgorgement or civil or criminal penalties. Any agency or judicial enforcement action could have a material adverse effect on PDS.

The process required by the FDA before a biological drug product may be marketed in the United States generally involves the following:

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•

•

•

•

•

•

completion  of  nonclinical  laboratory  tests  and  animal  studies  according  to  good  laboratory  practice  regulations,  or  GLP,  and  applicable
requirements for the humane use of laboratory animals or other applicable regulations;

submission to the FDA of an investigational new drug application, or an IND, which must become effective before human clinical studies may
begin;

performance of adequate and well-controlled human clinical studies according to the FDA’s regulations commonly referred to as good clinical
practice, or GCP, and  any additional requirements for the protection of human research subjects and their health information, to establish the
safety and efficacy of the proposed biological product for its intended use;

submission to the FDA of a Biologics License Application, or BLA, for marketing approval that meets applicable requirements to ensure the
continued safety, purity, and potency/efficacy of the product that is the subject of the BLA based on results of nonclinical testing and clinical
studies (including among other things clinical data, chemistry, and manufacturing and controls (CMC) data);

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

pre-approval inspection by the FDA of the sponsor (or any third party service providers) relative to oversight of clinical studies, clinical trial
sites that generated the data in support of the BLA, and any manufacturing facilities; and

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

Before testing any product candidate in humans, the product enters the preclinical testing stage. Preclinical tests, also referred to as nonclinical
studies, include laboratory evaluations of product chemistry, toxicity and formulation, as well as animal studies to assess the potential safety and activity of
the  product  candidate.  The  conduct  of  the  preclinical  tests  must  comply  with  federal  regulations  and  requirements including  GLP.  The  clinical  study
sponsor must submit the results of the preclinical 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.  Some  preclinical  testing  may  continue  even  after  the  IND  is  submitted.  The  results  of
preclinical studies and early clinical studies of product candidates with small patient populations may not be predictive of the results of later-stage  clinical
studies  or  the  results  once  the  applicable  clinical  studies  are  completed.  The  IND  automatically  becomes  effective  30  days  after  receipt  by  the  FDA,
unless the FDA raises concerns or questions regarding the proposed clinical studies and places the study on a clinical hold within that 30-day time period.
In  such  a  case,  the  IND  sponsor  and  the  FDA  must  resolve  any  outstanding  concerns  before  the  clinical  study  can  begin.  The  FDA  may  also  impose
clinical holds on a biological product candidate at any time before or during clinical studies due to safety concerns or non-compliance. If the FDA imposes
a clinical hold, studies may not recommence without FDA authorization and then only under terms authorized by the FDA. Accordingly, PDS cannot be
sure that submission of an IND will result in the FDA allowing clinical studies to begin, or that, once begun, issues will not arise that suspend or terminate
such studies.

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Clinical  trials  involve  the  administration  of  the  biological  product  candidate  to  volunteers  or  patients  under  the  supervision  of  qualified
investigators,  generally  physicians not  employed  by  or  under  the  trial  sponsor’s  control.  Clinical  trials  are  conducted  under  protocols  detailing,  among
other things, the objectives of the clinical trial, dosing procedures, subject selection (for example, inclusion and exclusion criteria), and the parameters to
be used to monitor subject safety, including stopping rules that assure a clinical trial will be stopped if certain adverse events should occur. Each protocol
and any amendments to the protocol must be submitted to the FDA as part of the IND and require IRB approval. Clinical trials must be conducted and
monitored in accordance with the FDA law including GCP requirements, including the requirement that all research subjects provide informed consent.
Further, each clinical trial must be reviewed and approved by an independent institutional review board, or IRB, at or servicing each institution at which the
clinical trial will be conducted. An IRB is charged with protecting the welfare and rights of 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 form and
content of the informed consent that must be signed by each clinical trial subject or his or her legal representative and must monitor the clinical trial until
completed. Human clinical trials are typically conducted in three sequential phases that may overlap or be combined:

•

•

•

Phase  1.  The  biological  product  is  initially  introduced  into  healthy  human  subjects  and  tested  for  safety.  In  the  case  of  some  products  for
severe or life-threatening diseases, especially when the product may be too inherently toxic to ethically administer to healthy volunteers, the
initial human testing is often conducted in seriously ill subjects. These studies are designed to test the safety, dosage tolerance, absorption,
metabolism  and  pharmacologic  actions  of  the  investigational  product  in  humans,  the  side  effects  associated  with  increasing  doses,  and,  if
possible, to gain early evidence of effectiveness.

Phase  2.  The  biological  product  is  evaluated  in  a  limited  patient  population  to  identify  possible  adverse  effects  and  safety  risks,  to
preliminarily evaluate the efficacy of the product for specific targeted diseases and to determine dosage tolerance, optimal dosage and dosing
schedule.  Multiple  Phase  2  clinical  studies  may  be  conducted  to  obtain  information  prior  to  beginning  larger  and  more expensive  Phase  3
clinical studies.

Phase 3. Clinical studies, which must be adequate and well-controlled, are undertaken to further evaluate dosage, clinical efficacy, potency,
and  safety  in  an expanded patient population generally at geographically dispersed clinical trial sites. These clinical studies are intended to
establish the overall risk to benefit ratio of the product and provide an adequate basis for product labeling.

Although  these  are  the  typical  phases  of  progression,  and  characteristics  of  the  phases  of  a  clinical  development  program,  certain  expedited
programs allow for variations that could support a marketing application based on surrogate endpoints, intermediate clinical endpoints, or single-arm as
opposed to comparative or placebo-controlled studies (for example, FDA could rely on well-controlled Phase 2 studies for evidence of effectiveness under
certain circumstances).

Post-approval clinical studies, sometimes referred to as Phase 4 clinical studies, may be conducted after initial marketing approval. These clinical
studies are used to gain additional experience from the treatment of patients in the intended therapeutic indication, particularly for long-term safety follow-
up, or to gain other information about the product.

During all phases of clinical development, regulatory agencies require extensive monitoring and auditing of all clinical activities, clinical data, and
clinical trial investigators. Annual progress reports detailing the results of the clinical trials must be submitted to the FDA. Written IND safety reports must
be  promptly  submitted  to  the  FDA  and  the  investigators  of  potential  safety  risks,  from  clinical  trials or  any  other  source,  including  for  serious  and
unexpected  adverse  events  and  serious  and  unexpected  suspected  adverse  reactions,  any  findings  from  other  studies  suggesting  a  significant  risk  in
humans  exposed  to  the  drug,  tests  in  laboratory animals or in vitro testing that suggest a significant risk for human subjects, or any clinically important
increase  in  the  rate  of  a  serious  suspected  adverse  reaction  over  that  listed  in  the  protocol  or  investigator  brochure.  The  sponsor  must submit  an  IND
safety report within 15 calendar days after the sponsor determines that the information qualifies for reporting. The sponsor also must notify the FDA of
any unexpected fatal or life-threatening suspected adverse reaction as soon as possible but no later than within seven calendar days after the sponsor’s
initial receipt of the information. Phase 1, Phase 2 and Phase 3 clinical trials may not be completed successfully within any specified period, if at all. The
FDA,  the sponsor  or  its  data  safety  monitoring  board,  or  DSMB,  may  suspend  or  terminate  a  clinical  trial  at  any  time  on  various  grounds,  including  a
finding that the research subjects are being exposed to an unacceptable health risk. Similarly, an IRB can suspend or terminate approval of a clinical trial
at its institution if the clinical trial is not being conducted in accordance with the IRB’s requirements or if the biological product has been associated with
unexpected serious harm to subjects.

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Information  about  certain  clinical  trials  must  be  submitted  within  specific  timeframes  to  the  National  Institutes  of  Health,  or  NIH,  for  public

dissemination on their ClinicalTrials.gov website, and other jurisdictions have similar laws that may apply.

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

U.S. Review and Approval Processes

After  the  completion  of  clinical  trials  of  a  biological  product,  FDA  approval  of  a  BLA  must  be  obtained  before  commercial  marketing  of  the
biological product. The BLA must include results of product development, laboratory and animal studies, human trials, information on the manufacture and
composition of the product, proposed labeling and other relevant information. The testing and approval processes require substantial time and effort and
there can be no assurance that the FDA will accept the BLA for filing and, even if filed, that any approval will be granted on a timely basis, if at all.

Under  the  Prescription  Drug  User  Fee  Act,  or  PDUFA,  as  amended,  each  BLA  must  be  accompanied  by  a  significant  application  fee.  For
approved drugs, including BLA-licensed biological products, PDUFA also imposes an annual PDUFA program fee. The FDA adjusts the PDUFA user fees
on an annual basis. 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. No user fees are assessed on BLAs for products designated as orphan drugs unless the application for the product also includes a
non-orphan indication.

Within 60 days following submission of the application, the FDA reviews a BLA submitted to determine if it is substantially complete before the
agency accepts it for filing. The FDA may refuse to file any BLA that it deems incomplete or not properly reviewable at the time of submission and may
request additional information. In this event, the BLA must be resubmitted with the additional information. The resubmitted application also is subject to
review before the FDA accepts it for filing. Once the submission is accepted for filing, the FDA begins an in-depth substantive review of the BLA. The FDA
reviews  the  BLA  to  determine,  among  other  things,  whether  the proposed  product  is  safe,  potent,  and/or  effective  for  its  intended  use,  and  has  an
acceptable purity profile, and whether the product is being manufactured in accordance with cGMP to assure and preserve the product’s identity, safety,
strength, quality,  potency  and  purity.  The  FDA  may  refer  an  application  to  an  advisory  committee  for  review,  evaluation  and  recommendation  as  to
whether the application should be approved, and applications for new molecular entities and original BLAs are generally discussed at advisory committee
meetings  unless  the  FDA  determines  that  this  type  of  consultation  is  not  needed  under  the  circumstances.  The  FDA  is  not  bound  by  the
recommendations  of  an  advisory  committee,  but  it  considers  such recommendations  carefully  when  making  decisions.  During  the  biological  product
approval process, the FDA also will determine whether a Risk Evaluation and Mitigation Strategy, or REMS, is necessary to assure the safe use of the
biological  product. If the FDA concludes a REMS is needed, the sponsor of the BLA must submit a proposed REMS. The FDA will not approve a BLA
without a REMS, if required.

Before approving a BLA, the FDA will typically inspect the facilities at which the product is manufactured. The FDA will not approve the product
unless  it  is  satisfied  that  the manufacturing  establishments  and  processes  supporting  the  BLA  meet  the  appropriate  requirements  and  comply  with  the
applicable  regulations  (including  cGMP  requirements  and  adequate  assurance  for  consistent  commercial  production  of  the  product within  required
specifications). Additionally, before approving a BLA, the FDA will typically conduct a pre-approval inspection of regulated participants in clinical trials (for
example, the sponsor, investigators responsible for specific sites, and CROs) to assure that the clinical trials were conducted in compliance with the IND
and GCP requirements. To assure cGMP and GCP compliance, an applicant must incur significant expenditure of time, money and effort in the areas of
training, record keeping, production, and quality control.

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Notwithstanding  the  submission  of  relevant  data  and  information,  the  FDA  may  ultimately  decide  that  the  BLA  does  not  satisfy  its  regulatory
criteria for approval and deny approval. Data obtained from clinical studies are not always conclusive and the FDA may interpret data differently than PDS
interprets the same data. If the agency decides not to approve the BLA in its present form, the FDA will issue a complete response letter that describes all
of the specific deficiencies in the BLA identified by the FDA. The deficiencies identified may be minor, for example, requiring labeling changes, or major,
for  example,  requiring  additional  clinical  studies. Additionally,  the  complete  response  letter  may  include  recommended  actions  that  the  applicant  might
take to place the application in a condition for approval. If a complete response letter is issued, the applicant may either resubmit the BLA, addressing all
of the deficiencies identified in the letter, or withdraw the application.

If a product receives regulatory approval, the approval may be significantly limited to specific diseases and dosages or the indications for use may

otherwise be limited, which could restrict the commercial value of the product.

Further, the FDA may require that certain contraindications, warnings or precautions be included in the product labeling. The FDA may impose
restrictions  and  conditions  on product distribution, prescribing, or dispensing in the form of a risk management plan, or otherwise limit the scope of any
approval. In addition, the FDA may require post marketing clinical studies, sometimes referred to as Phase 4 clinical studies, designed to further assess a
biological  product’s  safety  and  effectiveness,  and  testing  and  surveillance  programs  to  monitor  the  safety  of  approved  products  that  have  been
commercialized.

In addition, under the Pediatric Research Equity Act, a BLA or supplement to a BLA for a new indication, dosage form, dosage regimen, or route
of  administration  must  contain data  that  are  adequate  to  assess  the  safety  and  effectiveness  of  the  product  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, on its own initiative or at the request of the applicant, grant deferrals for submission of some or all pediatric data until after approval of the product for
use in adults, or full or partial waivers from the pediatric data requirements.

Post-Approval Requirements

Any  products  for  which  PDS  receives  FDA  approvals  are  subject  to  continuing  regulation  by  the  FDA,  including,  among  other  things,  record-
keeping  requirements,  reporting  of adverse  experiences  with  the  product,  providing  the  FDA  with  updated  safety  and  efficacy  information,  product
sampling  and  distribution  requirements,  and  complying  with  FDA  promotion  and  advertising  requirements,  which  include,  among  others, standards  for
direct-to-consumer advertising, restrictions on promoting products for uses or in patient populations that are not described in the product’s approved uses
or consistent with the 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 products for off-label uses, if the physicians deem to be
appropriate in their professional medical judgment, manufacturers may not market or promote such off-label uses. Recent court decisions have impacted
the FDA’s enforcement activity regarding off-label promotion in light of First Amendment considerations; however, there are still significant risks in this area
in  part  due  to  the  potential  False  Claims  Act  exposure.    Further,  the  FDA  has  not  materially  changed  its  position  on  off-label  promotion  following  legal
setbacks on First Amendment grounds and the DOJ has consistently asserted in FCA briefings that “speech that serves as a conduit for violations of the
law is not constitutionally protected.”

In addition, quality control and manufacturing procedures must continue to conform to applicable manufacturing requirements after approval to
ensure  the  long-term  stability  of the  product.  cGMP  regulations  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.  Manufacturers  and
other  entities  involved  in  the  manufacture  and  distribution  of  approved  products  are  required  to  register  their  establishments  with  the  FDA  and  certain
state agencies and are subject to periodic unannounced inspections by the FDA and certain state agencies for compliance with cGMP and other laws.
Accordingly, manufacturers must continue to expend time, money, and effort in the area of production and quality control to maintain cGMP compliance.
Discovery of problems with a product after approval may result in restrictions on a product, manufacturer, or holder of an approved BLA, including, among
other things, recall or withdrawal of the product from the market. In addition, changes to the manufacturing process are strictly regulated, and depending
on the significance of the change, may require prior FDA approval before being implemented. Other types of changes to the approved product, such as
adding new indications and claims, are also subject to further FDA review and approval.

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The Drug Supply Chain Security Act, or DSCSA imposes obligations on manufacturers of prescription biopharmaceutical products for commercial
distribution,  regulating  the distribution of the products at the federal level, and sets certain standards for federal or state registration and compliance of
entities in the supply chain (manufacturers and repackagers, wholesale distributors, third-party logistics providers, and dispensers). The DSCSA preempts
certain previously enacted state pedigree laws and the pedigree requirements of the Prescription Drug Marketing Act, or PDMA. Trading partners within
the drug supply chain must now ensure certain product tracing requirements are met that they are doing business with other authorized trading partners;
and they are required to exchange transaction information, transaction history, and transaction statements. Product identifier information (an aspect of the
product tracing scheme) is also now required. The DSCSA requirements, development of standards, and the system for product tracing have been and
will continue to be phased in over a period of years, with the FDA indicating enforcement discretion on certain aspects due to the COVID-19 pandemic.
The distribution of product samples continues to be regulated under the PDMA, and some states also impose regulations on drug sample distribution.

The  FDA  also  may  require  post-marketing  testing,  known  as  Phase  4  testing,  and  surveillance  to  monitor  the  effects  of  an  approved  product.
Discovery  of  previously  unknown problems with a product or the failure to comply with applicable FDA requirements can have negative consequences,
including adverse publicity, judicial or administrative enforcement, warning letters from the FDA, mandated corrective advertising or  communications with
doctors,  and  civil  or  criminal  penalties,  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 its product candidates under development.

Regulatory Exclusivities Applicable to Biologics and Related Matters

Abbreviated  Licensure  Pathway  for  Biosimilars :  The  Biologics  Price  Competition  and  Innovation  Act  of  2009  (BPCIA)  amended  the  PHSA  to
create an abbreviated approval pathway for “biosimilar” biologics, that is, those shown to be highly similar to an already-FDA-licensed reference biologic. 
The  abbreviated  approval  process  for  biosimilars  under  the  BPCIA  is  similar  in  concept  to  the  Abbreviated  New  Drug Application  (“ANDA”)  for  generic
small molecule drugs established by the Drug Price Competition and Patent Term Restoration Act of 1984 (“Hatch-Waxman”) amendments to the FDCA. 
As  with  Hatch-Waxman,  the  goal  of  the  BPCIA  was  to  increase  access  to lower-priced  versions  of  drugs,  while  balancing  the  need  to  continue
incentivizing  innovation  in  drug  development.  Biosimilarity  is  defined  to  mean  that  the  proposed  biologic  is  highly  similar  to  the  reference  product
notwithstanding minor differences in clinically inactive components and that there are no clinically meaningful differences between the biological product
and the reference product in terms of the safety, purity and potency of the product.  Further, a biosimilar may be  determined to be “interchangeable” with
the reference product, in which case the biosimilar may be substituted for the reference product under state substitution laws, similar to the way generic
small molecule drugs are substituted.  The higher standard of interchangeability requires a showing that the biosimilar is expected to produce the same
clinical result as the reference biologic in any given patient, and further that the risk to the patient in terms of safety, purity, and/or  potency pf switching
between the biosimilar and the reference product is no more than using the reference product without switching.

Regulatory Exclusivities Applicable to Biologics Under the BPCIA : The BPCIA established certain regulatory exclusivities that provide reference
biologics  with  prescribed periods  of  time  during  which  competing  biosimilars  or  interchangeable  biosimilars  may  not  be  approved  or  may  not  be
marketed.    Once  its  BLA  is  approved  (“date  of  first  licensure)  the  reference  biologic  is  entitled  to  a  period  of  four  years  after its  date  of  first  licensure
during which time FDA is prohibited from accepting a marketing application that would seek approval of any products that are biosimilar to the branded
product.    In  addition,  the  reference  biologic  is  entitled  to  a  period of  12  years  after  its  date  of  first  licensure  during  which  time  FDA  is  prohibited  from
approving  marketing  applications  for  any  products  that  are  biosimilar  to  the  branded  product.    In  addition,  the  first  interchangeable  biosimilar  may  be
entitled to a period of one year after its date of first licensure, or other periods keyed to the outcome of patent litigation if instituted, during which FDA is
prohibited  from  finding  that  any  other  biosimilars  are  interchangeable  to  the  same  reference biologic.    The  reference  biologic  may  also  be  entitled  to
regulatory exclusivity under other statutory provisions that apply to biologics and small molecule drugs.

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Orphan Drug Exclusivity:  Under  the  Orphan  Drug  Act,  the  FDA  may  grant  orphan  drug  designation  to  biological  products  indicated  for    a  rare
disease  or  condition, generally  a  disease  or  condition  that  affects  fewer  than  200,000  individuals  in  the  United  States,  or  in  the  alternative  there  is  no
reasonable expectation that the cost of developing and making a product available in the United States for such disease or condition will be recovered
from sales of the product. Orphan designation must be requested before submitting a BLA. After the FDA grants orphan drug designation, the identity of
the  biological  product  and  its  potential  orphan  use  are disclosed  publicly  by  the  FDA.    The  first  BLA  sponsor  to  receive  FDA  approval  for  a  particular
active moiety to treat a particular disease with FDA orphan drug designation is entitled to a period of 12 years after its date of first licensure during which
time FDA is prohibited from approving marketing applications for any products that are biosimilar to the branded product.  There is an exception in certain
limited circumstances, such as for a showing of clinical superiority to the product with orphan drug exclusivity. A product is clinically superior if it is safer,
more  effective  or  makes  a  major  contribution  to  patient  care.  Orphan  drug  exclusivity  does  not  prevent  the  FDA  from  approving  a  different  drug  or
biological  product  for the same disease or condition, or the same biological product for a different disease or condition.  Other benefits of orphan drug
designation include tax credits for certain research and a waiver of the BLA user fee.

Pediatric  Study  Requirements  and  Pediatric  Exclusivity :  Under  the  Best  Pharmaceuticals  for  Children  Act  (BPCA),  a  sponsor  qualifies  for
“pediatric  exclusivity”  if  it complies  with  a  Written  Request  (WR)  issued  by  FDA  for  pediatric  studies.    The  sponsor  may  apply  to  FDA  to  issue  a  WR. 
Pediatric exclusivity operates by adding six months of exclusivity on to the end of the latest-expiring form of exclusivity and may apply to patent rights or to
FDA regulatory exclusivities.  To qualify for pediatric exclusivity, at least one of those rights must still be currently in force at the time FDA approves the
pediatric studies.

Patent Term Extensions :  Patents  have  a  limited  lifespan.  In  most  countries,  including  the  U.S.,  the  standard  expiration  of  a  patent  is  20  years
from  the  effective  filing date.  Various  extensions  of  patent  terms  may  be  available  in  certain  circumstances,  for  example  where  there  are  delays  in
obtaining FDA regulatory approvals that result in a reduction of the period of time during which we could market a product under patent protection.  In the
U.S., such possible extensions include those permitted under Hatch-Waxman, which permits a patent term extension of up to five years to cover an FDA-
approved product. The actual length of the extension will depend on the amount of patent term lost while the product was in clinical trials, and FDA must
agree with our calculation of the time lost in regulatory review.

Other U.S. Healthcare Laws and Compliance Requirements

In the United States, PDS’s activities are potentially subject to regulation, either directly or indirectly, by various federal, state and local authorities
in  addition  to  the FDA, including but not limited to, the Centers for Medicare and Medicaid Services, or CMS, other divisions of the U.S. Department of
Health and Human Services, for instance the Office of Inspector General (OIG), the U.S. Department of Justice (DOJ), and individual U.S. Attorney offices
within the DOJ, and state and local governments. For example, sales, marketing and scientific/educational grant programs must comply with the anti-fraud
and  abuse  provisions  of  the  Social  Security  Act, the criminal provisions of the Health Insurance Portability and Accountability Act of 1996 (HIPAA), the
federal  Anti-Kickback  Statute,  the  federal  false  claims  laws,  the  physician  payment  transparency  laws,  and  similar  state  laws,  each  as  amended. The
compliance and enforcement landscape, and related risk, is informed by government enforcement precedent and settlement history, Advisory Opinions,
and Special Fraud Alerts.  Our approach to compliance may evolve over time in light of these types of developments.

The federal Anti-Kickback Statute prohibits, among other things, any person or entity, from knowingly and willfully offering, paying, soliciting or
receiving any remuneration, directly or indirectly, overtly or covertly, in cash or in kind, to induce or in return for purchasing, leasing, ordering or arranging
for  the  purchase,  lease  or  order  of  any  item  or  service  reimbursable  under  Medicare,  Medicaid  or  other  federal healthcare  programs.  The  term
remuneration  has  been  interpreted  broadly  to  include  anything  of  value.  The  Anti-Kickback  Statute  has  been  interpreted  to  apply  to  arrangements
between pharmaceutical manufacturers on one hand and prescribers, purchasers, and formulary managers on the other. There are a number of statutory
exceptions and regulatory safe harbors protecting some common activities from prosecution. The exceptions and safe harbors are drawn narrowly and
practices that involve remuneration that may be alleged to be intended to induce prescribing, purchasing or recommending may be subject to scrutiny if
they do not qualify for an exception or safe harbor. Failure to meet all of the requirements of a particular  applicable statutory exception or regulatory safe
harbor, however, does not make the conduct per se illegal under the Anti-Kickback Statute. Instead, the legality of the arrangement will be evaluated on a
case-by-case  basis  based  on  a  cumulative review of all of its facts and circumstances. PDS’s practices may not in all cases meet all of the criteria for
protection  under  a  statutory  exception  or  regulatory  safe  harbor.  The  lack  of  uniform  court  interpretation  of  the  Anti-Kickback  Statute combined  with
emerging,  novel  enforcement  theories,  makes  compliance  with  the  law  difficult.  The  potential  safe  harbors  available  are  subject  to  change  through
legislative and regulatory action, and we may decide to adjust our business practices or be subject to heightened scrutiny as a result. Violations of the
federal  Anti-Kickback  Statute  can  result  in  significant  criminal  fines,  exclusion  from  participation  in  Medicare  and  Medicaid  and  follow-on  civil  litigation,
among other things, for both entities and individuals.

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Additionally,  the  intent  standard  under  the  Anti-Kickback  Statute  was  amended  by  the  Affordable  Care  Act  to  a  stricter  standard  such  that  a
person or entity no longer needs to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation. In addition,
the Affordable Care Act codified case law that a claim including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes
a per se false or fraudulent claim for purposes of the federal False Claims Act, as discussed below.

The Criminal Healthcare Fraud statute, 18 U.S.C. § 1347 prohibits knowingly and willfully executing a scheme to defraud any healthcare benefit
program, including private third-party payers. Federal criminal law at 18 U.S.C. § 1001, among other sections, prohibits knowingly and willfully falsifying,
concealing or covering up a material fact or making any materially false, fictitious or fraudulent statement in connection with the delivery of or payment for
healthcare benefits, items or services.

The civil monetary penalties statute imposes penalties against any person or entity that, among other things, is determined to have presented or
caused  to  be  presented  a  claim to  a  federal  health  program  that  the  person  knows  or  should  know  is  for  an  item  or  service  that  was  not  provided  as
claimed or is false or fraudulent.

The federal False Claims Act prohibits, among other things, any person or entity from knowingly presenting, or causing to be presented, a false
claim  for  payment  to,  or approval  by,  the  federal  government  or  knowingly  making,  using,  or  causing  to  be  made  or  used  a  false  record  or  statement
material to a false or fraudulent claim to the federal government. The qui tam  provisions of the False Claims Act and similar state laws allow a private
individual to bring civil actions on behalf of the federal or state government and to share in any monetary recovery. As a result of a modification made by
the  Fraud Enforcement and Recovery Act of 2009, a claim includes “any request or demand” for money or property presented to the U.S. government,
whether  directly  or  indirectly.  Recently,  several  pharmaceutical  and  other  healthcare  companies  have  been  prosecuted  under  these  laws  for  allegedly
providing free product to customers with the expectation that the customers would bill federal programs for the product.

Other  companies  have  been  prosecuted  for  causing  false  claims  to  be  submitted  because  of  the  companies’  marketing  of  the  product  for

unapproved, and thus non-reimbursable, uses.

HIPAA created new federal criminal statutes that prohibit knowingly and willfully executing, or attempting to execute, a scheme to defraud or to
obtain, by means of false or fraudulent pretenses, representations or promises, any money or property owned by, or under the control or custody of, any
healthcare  benefit  program,  including  private  third-party  payors  and  knowingly  and  willfully  falsifying,  concealing  or covering  up  by  trick,  scheme  or
device,  a  material  fact  or  making  any  materially  false,  fictitious  or  fraudulent  statement  in  connection  with  the  delivery  of  or  payment  for  healthcare
benefits,  items  or  services.  Similar  to  the  federal Anti-Kickback  Statute,  a  person  or  entity  does  not  need  to  have  actual  knowledge  of  the  statute  or
specific intent to violate it in order to have committed a violation.

Also, many states have enacted similar fraud and abuse statutes or regulations that apply to items and services reimbursed under Medicaid and

other state programs, or, in several states, apply regardless of the payor, even extending to self-pay items and services.

PDS may be subject to data privacy and security regulations by both the federal government and the states in which it conducts its business. We
are  not  a  covered  entity  under HIPAA  and  have  not  functioned  as  a  business  associate  under  HIPAA  that  would  cause  the  HIPAA  Security  Rule  and
provisions  of  the  Privacy  Rule  to  apply  directly  to  us  as  a  business  associate.    To  the  extent  that  we  ever  function  in  a  business associate  capacity,
HIPAA,  as  amended  by  the  HITECH  Act,  and  its  respective  implementing  regulations,  including  the  final  omnibus  rule  published  on  January  25,  2013,
imposes requirements relating to the privacy, security and transmission of  individually identifiable health information. Following enactment of the HITECH
Act,  HIPAA’s  privacy  and  security  standards  now  directly  apply  to  business  associates  of  covered  entities  that  receive  or  obtain  protected  health
information in connection with providing a service on behalf of a covered entity. HITECH also created four new tiers of civil monetary penalties, gave state
attorneys general new authority to file civil actions for damages or injunctions in federal courts to enforce the federal HIPAA laws and seek attorneys’ fees
and  costs  associated  with  pursuing  federal  civil  actions.  In  addition,  state  laws  govern  the  privacy  and  security  of  health  information  in  specified
circumstances, many of which differ from each other in significant ways, and may apply more broadly thus complicating compliance efforts (for example,
California recently enacted legislation — the California Consumer Privacy Act, or CCPA — which went into effect on January 1, 2020 and among other
things, creates new data privacy obligations for covered companies and provides new privacy rights to California residents, including the right to opt out of
certain  disclosures  of  their  information,  and  creates  a  private  right  of action with statutory damages for certain data  breaches.  The  CCPA  was  recently
amended by the California Privacy Rights Act, or CPRA, expanding certain consumer rights such as the right to know. It remains unclear what, if any,
additional modifications will be made to these laws by the California legislature or how these laws will be interpreted and enforced. The potential effects of
the CCPA and CPRA and implementing regulations are significant and may cause us to incur substantial costs and expenses to comply.

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Even  for  entities  that  are  not  deemed  “covered  entities”  or  “business  associates”  under  HIPAA,  according  to  the  United  States  Federal  Trade
Commission,  or  the  FTC,  failing  to take  appropriate  steps  to  keep  consumers’  personal  information  secure  constitutes  unfair  acts  or  practices  in  or
affecting commerce in violation of Section 5(a) of the Federal Trade Commission Act, or the FTCA, 15 USC § 45(a). The FTC expects a  company’s data
security measures to be reasonable and appropriate in light of the sensitivity and volume of consumer information it holds, the size and complexity of its
business,  and  the  cost  of  available  tools  to  improve  security  and  reduce vulnerabilities.  Medical  data  is  considered  sensitive  data  that  merits  stronger
safeguards.  The  FTC’s  guidance  for  appropriately  securing  consumers’  personal  information  is  similar  to  what  is  required  by  the  HIPAA  Security  Rule.
The FTC’s authority under Section 5 is concurrent with HIPAA’s jurisdiction and with any action taken under state law.

Additionally, the Federal Physician Payments Sunshine Act under the Affordable Care Act, and its implementing regulations, require that certain
manufacturers  of  drugs,  devices, biological  and  medical  supplies  for  which  payment  is  available  under  Medicare,  Medicaid  or  the  Children’s  Health
Insurance Program, with certain exceptions, report information related to certain payments or other transfers of value made or distributed  to  physicians
and  teaching  hospitals,  or  to  entities  or  individuals  at  the  request  of,  or  designated  on  behalf  of,  the  physicians  and  teaching  hospitals  and  to  report
annually  certain  ownership  and  investment  interests  held  by physicians  and  their  immediate  family  members.  Failure  to  submit  timely,  accurately,  and
completely the required information may result in civil monetary penalties of up to an aggregate of $150,000 per year and up to an aggregate of $1 million
per year  for  “knowing  failures”.  In  2022  the  Sunshine  Act  reporting  will  be  extended  to  payments  and  transfers  of  value  to  physician  assistants,  nurse
practitioners,  and  other  mid-level  practitioners  (with  reporting  requirements  going  into  effect  in 2022  for  payments  made  in  2021).  Certain  states  also
mandate  implementation  of  compliance  programs,  impose  restrictions  on  pharmaceutical  manufacturer  marketing  practices  and/or  require  the  tracking
and reporting of gifts, compensation and other remuneration to healthcare providers and entities.

In order to distribute products commercially, PDS must also comply with state laws that require the registration of manufacturers and wholesale
distributors of drug and biological products in a state, including, in certain states, manufacturers and distributors who ship products into the state even if
such  manufacturers  or  distributors  have  no  place  of  business  within  the  state.  Several  states  have  enacted legislation  requiring  pharmaceutical  and
biotechnology  companies  to  establish  marketing  compliance  programs,  file  periodic  reports  with  the  state,  make  periodic  public  disclosures  on  sales,
marketing, pricing, clinical studies and other activities, and/or register their sales representatives, as well as to prohibit pharmacies and other healthcare
entities from providing certain physician prescribing data to pharmaceutical and biotechnology companies for use in sales and marketing, and to prohibit
certain other sales and marketing practices. All of PDS’s activities are potentially subject to federal and state consumer protection and unfair competition
laws.

The  scope  and  enforcement  of  each  of  these  laws  is  uncertain  and  subject  to  rapid  change  in  the  current  environment  of  healthcare  reform,
especially  in  light  of  the  lack  of applicable  precedent  and  regulations.  Federal  and  state  enforcement  bodies  have  recently  increased  their  scrutiny  of
interactions between pharmaceutical companies and providers and patients, which has led to a number of investigations, prosecutions,  convictions  and
settlements  in  the  industry.  Ensuring  that  business  arrangements  with  third  parties  comply  with  applicable  healthcare  laws,  as  well  as  responding  to
possible investigations by government authorities, can be time- and resource-consuming and can divert management’s attention from the business, even
if investigators ultimately find that no violation has occurred.

If  PDS  operations  are  found  to  be  in  violation  of  any  of  the  federal  and  state  healthcare  laws  described  above  or  any  other  governmental
regulations  that  apply  to  it,  PDS  may be subject to penalties, including without limitation, civil, criminal and/or administrative penalties; damages; fines;
disgorgement;  exclusion  from  participation  in  government  programs,  such  as  Medicare  and  Medicaid;  injunctions;  private  “qui  tam” actions  brought  by
individual whistleblowers in the name of the government, or refusal to allow it to enter into government contracts; contractual damages; reputational harm;
administrative burdens; diminished profits and future earnings; and the curtailment or restructuring of its operations; any of which could adversely affect
PDS’s ability to operate its business and its results of operations.

In addition to the laws discussed above, we may see more stringent state and federal privacy legislation in the future, as the increased cyber-
attacks  during  the  COVID-19  pandemic  have  heightened  attention  to  data  privacy  and  security  in  the  U.S.  and  other  jurisdictions.  We  cannot  predict
where new legislation might arise, the scope of such legislation, or the potential impact to our business and operations.

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Coverage, Pricing and Reimbursement

Significant uncertainty exists as to the coverage and reimbursement status of any product candidates for which PDS obtains regulatory approval.
In the United States and markets in other countries, sales of any products for which PDS receives regulatory approval for commercial sale will depend, in
part, on the extent to which third-party payors provide coverage, and establish adequate reimbursement levels for such products. In the United States,
third-party payors include federal and state healthcare programs, private managed care providers, health insurers and other organizations. The process
for determining whether a third-party payor will provide coverage for a product may be separate from the process for setting the price of a product or for
establishing the reimbursement rate that such a payor will pay for the product. Third-party payors may limit coverage to specific products on an approved
list, also known as a formulary, which might not include all of the FDA-approved products for a particular indication. Third-party payors are increasingly
challenging  the  price,  examining  the  medical  necessity  and  reviewing  the  cost-effectiveness  of medical  products,  therapies  and  services,  in  addition  to
questioning their safety and efficacy. PDS may need to conduct expensive pharmaco-economic studies in order to demonstrate the medical necessity and
cost-effectiveness of its tablet product candidates, in addition to the costs required to obtain the FDA approvals. PDS’s product candidates may not be
considered medically necessary or cost-effective. A payor’s decision to provide coverage for a product does not imply that an adequate reimbursement
rate will be approved. Further, one payor’s determination to provide coverage for a product does not assure that other payors will also provide coverage
for the product. Adequate third-party reimbursement may not be available to enable PDS to maintain price levels sufficient to realize an appropriate return
on its investment in product development.

Different pricing and reimbursement schemes exist in other countries. Some jurisdictions operate positive and negative list systems under which
products may only be marketed once a reimbursement price has been agreed. To obtain reimbursement or pricing approval, some of these countries may
require  the  completion  of  clinical  studies  that  compare  the  cost-effectiveness  of  a  particular  product  candidate  to  currently available  therapies.  Other
countries allow companies to fix their own prices for medicines, but monitor and control company profits. The downward pressure on health care costs
has  become  very  intense.  As  a  result,  increasingly  high  barriers  are being  erected  to  the  entry  of  new  products.  In  addition,  in  some  countries,  cross-
border imports from low-priced markets exert a commercial pressure on pricing within a country.

The marketability of any product candidates for which it receives regulatory approval for commercial sale may suffer if the government and third-
party payors fail to provide adequate coverage and reimbursement, or require onerous prior approvals or other restricted access. In addition, emphasis on
managed care in the United States has increased and PDS expects the pressure on healthcare pricing will continue to increase. Coverage policies and
third-party reimbursement rates may change at any time. Even if favorable coverage and reimbursement status is attained for one or more products for
which PDS receives regulatory approval, less favorable coverage policies and reimbursement rates may be implemented in the future.

U.S. Healthcare Reform

In recent years, there have been numerous initiatives on the federal and state levels in the United States for comprehensive reforms affecting the
payment for, the availability of and reimbursement for healthcare services. There have been a number of federal and state proposals during the last few
years  regarding  the  pricing  of  pharmaceutical  and  biopharmaceutical  products,  limiting  coverage  and  reimbursement  for  drugs and  other  medical
products, government control and other changes to the healthcare system in the United States. PDS anticipates that current and future U.S. legislative
healthcare reforms may result in additional downward pressure on the price that PDS receives for any approved product, if covered, and could seriously
harm  its  business.  Any  reduction  in  reimbursement  from  Medicare  and  other  government  programs  may  result  in  a  similar  reduction  in  payments  from
private  payors.  The implementation of cost containment measures or other healthcare reforms may prevent PDS from being able to generate revenue,
attain profitability or commercialize its product candidates. In addition, it is possible that there will be further legislation or regulation that could harm its
business, financial condition and results of operations.

For example, the Affordable Care Act (ACA) which was signed into law in the United States in March 2010, was enacted to broaden access to
health insurance, reduce or constrain the growth of healthcare spending, enhance remedies against fraud and abuse, add new transparency requirements
for health care and health insurance industries, impose new taxes and fees on the health industry and impose additional health policy reforms. Since its
enactment, there have been judicial, executive and Congressional challenges to certain aspects of the ACA. On June 17, 2021, the U.S. Supreme Court
dismissed  the  most  recent  judicial  challenge  to  ACA  brought  by  several  states without  specifically  ruling  on  the  constitutionality  of  the  Act.  Prior  to  the
Supreme Court’s decision, President Biden issued an executive order to initiate a special enrollment period from February 15, 2021 through August 15,
2021  for  purposes  of obtaining  health  insurance  coverage  through  the  ACA  marketplace.  The  executive  order  also  instructed  certain  governmental
agencies  to  review  and  reconsider  their  existing  policies  and  rules  that  limit  access  to  healthcare,  including  among  others, reexamining  Medicaid
demonstration projects and waiver programs that include work requirements, and policies that create unnecessary barriers to obtaining access to health
insurance coverage through Medicaid or the ACA. It is unclear how other healthcare reform measures of the Biden administration or other efforts, if any, to
challenge, repeal or replace the ACA will impact health care laws and regulations PDS’s business.

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There  has  been  increasing  legislative  and  enforcement  interest  in  the  United  States  with  respect  to  drug  pricing  practices.  For  example,  U.S.
federal prosecutors have issued subpoenas to pharmaceutical companies seeking information about pricing practices in connection with an investigation
into  pricing  practices  being  conducted  by  the  U.S.  Department  of  Justice.  Several  state  attorneys  general  also  have  commenced  drug pricing
investigations and filed lawsuits against pharmaceutical companies, and the U.S. Senate has publicly investigated a number of pharmaceutical companies
relating to price increases and pricing practices. Proposed legislation has been designed to, among other things, bring more transparency to drug pricing,
reduce the cost of prescription drugs under Medicare, review the relationship between pricing and manufacturer patient programs and reform government
program reimbursement methodologies for drugs. Drug pricing is and will remain a key legislative issue in the coming year, although we do not know the
steps the Biden Administration will take with respect to drug pricing.

At the state level, legislatures have increasingly passed legislation and implemented regulations designed to control pharmaceutical and biological
product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and
transparency  measures,  and,  in  some  cases,  designed  to  encourage  importation  from  other  countries  and  bulk  purchasing. In  addition,  regional  health
care authorities and individual hospitals are increasingly using bidding procedures to determine what pharmaceutical products and which suppliers will be
included in their prescription drug and other health care programs. These measures could reduce the ultimate demand for our products or put pressure on
our  product  pricing.  We  expect  that  additional  state  healthcare  reform  measures  will  be  adopted  in  the  future,  which  could  limit  the  amounts  that  state
governments  will  pay  for  healthcare  products  and  services  and  result  in  additional  pricing  pressures.  The  boom  in  state  laws  targeting  drug  pricing  is
unprecedented  and  the  requirements  are  not  uniform  from  state  to  state,  creating  additional compliance  and  commercialization  challenges  for
manufacturers.  If  PDS  is  able  to  obtain  marketing  approval  for  one  or  more  of  our  products,  our  revenue  and  future  profitability  could  be  negatively
affected if these or other inquiries were to result in legislative or regulatory proposals that limit our ability to increase the prices of any products for which
we obtain marketing approval.

Foreign Regulation

In order to market any product outside of the United States, we would need to comply with numerous and varying regulatory requirements of other
countries and jurisdictions regarding quality, safety and efficacy and governing, among other things, clinical studies, marketing authorization, commercial
sales and distribution of its products. Whether or not PDS obtains FDA approval for a product, it would need to obtain the necessary approvals by the
comparable  foreign  regulatory  authorities  before  it  can  commence  clinical  studies  or  marketing  of  the  product  in  foreign  countries  and  jurisdictions.
Although many of the issues discussed above with respect to the United States apply similarly in the context of the European Union, the approval process
varies between countries and jurisdictions and can involve additional product testing and additional administrative review periods. The time required to
obtain approval in other countries and jurisdictions might differ from and be longer than that required to obtain FDA approval. Regulatory approval in one
country or jurisdiction does not ensure regulatory approval in another, but a failure or delay in  obtaining regulatory approval in one country or jurisdiction
may negatively impact the regulatory process in others.

European Union member states and other foreign jurisdictions, including Switzerland, have adopted data protection laws and regulations which
impose significant compliance obligations. Moreover, the collection and use of personal health data in the European Union, which was formerly governed
by  the  provisions  of  the  European  Union  Data  Protection  Directive,  was  replaced  with  the  European  Union  General  Data  Protection Regulation,  or  the
GDPR, in May 2018. The GDPR, which is wide-ranging in scope, imposes several requirements relating to the consent of the individuals to whom the
personal data relates, the information provided to the individuals, the security and confidentiality of the personal data, data breach notification and the use
of third-party processors in connection with the processing of personal data. The GDPR also imposes strict rules on the transfer of personal data out of the
European Union to the United States, provides an enforcement authority and imposes large penalties for noncompliance, including the potential for fines
of up to €20 million or 4% of the annual global revenues of the noncompliant company, whichever is greater. The  recent implementation of the GDPR has
increased our responsibility and liability in relation to personal data that we process, including in clinical trials, and we may in the future be required to put
in place additional mechanisms to ensure compliance with the GDPR, which could divert management’s attention and increase our cost of doing business.
In addition, new regulation or legislative actions regarding data privacy and security (together with applicable industry standards) may increase our costs
of doing business. In this regard, we expect that there will continue to be new proposed laws, regulations and industry standards relating to privacy and
data protection in the United States, the European Union and other jurisdictions, and we cannot determine the impact such future laws, regulations and
standards may have on our business.

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Employees and Human Capital Management

Our  management  team  possesses  considerable  experience  in  drug  development  research,  manufacturing,  clinical  development  and  regulatory
matters.  PDS’  virtual  operating  strategy of collaborating with scientific and clinical experts in cancer immunology, tumor immunology and gynecological
oncology  provides  additional  considerable  experience  in  immunotherapy  development,  clinical  design  and  execution.  We  have  no  collective bargaining
agreements with our employees and we have not experienced any work stoppages.

As  of  December  31,  2021,  we  had  22  employees.  Our  employees  are  highly  skilled,  and  many  hold  advanced  degrees.  We  consider  our
relationship with our employees to be good. Our future performance depends significantly upon the continued service of our key scientific, technical, and
senior management personnel and our continued ability to attract and retain highly skilled employees. We provide our employees with market salaries and
bonuses, opportunities for equity ownership, development programs that enable continued learning and growth and a robust employment package that
promotes well-being across all aspects of their lives. In addition to salaries, these programs include potential annual discretionary bonuses, stock awards,
a 401(k) plan, healthcare and insurance benefits, health savings and flexible spending accounts, paid time off, family leave, and flexible work schedules,
among other benefits.

We have taken proactive, aggressive action throughout the COVID-19 pandemic to protect the health and safety of our employees. We expect to
continue to implement these measures until we determine that the COVID-19 pandemic is adequately contained for purposes of our business. We may
take further actions, in compliance with all appropriate government regulations, that we determine to be in the best interest of our employees.

Environmental Regulations

We  believe  we  are  compliant  in  all  material  respects  with  applicable  environmental  laws.  Presently,  we  do  not  anticipate  such  compliance  will

have a material effect on capital expenditures, earnings, or our competitive position with respect to any of our operations.

ITEM 1A. Risk Factors

The risks described below may not be the only ones relating to our company. Additional risks that we currently believe are immaterial may also
impair our business operations. Our business, financial conditions and future prospects and the trading price of our common stock could be harmed as a
result of any of these risks. Investors should also refer to the other information contained or incorporated by reference in this Annual Report on Form 10-K,
including our financial statements and related notes, and our other filings from time to time with the Securities and Exchange Commission or SEC.

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Risk Factors Summary

Our business is subject to a number of risks and uncertainties, including those risks discussed at length below. These risks include, among others,
the following principal risk factors that make an investment in our company speculative or risky. You are encouraged to carefully review our full discussion
of the material risk factors relevant to an investment in our business, which follows the brief bulleted list of our principal risk factors set forth below:

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We have incurred significant losses since our inception and expect to continue to incur significant losses for the foreseeable future
and may never achieve or maintain profitability.
We  are  dependent  on  the  success  of  our  Versamune  and  Infectimune  products,  which  are  still  in  early-stage  clinical development,
and  if  our  Versamune  and  Infectimune  products  do  not  receive  regulatory  approval  or  are  not  successfully  commercialized,  our
business may be harmed.
We have a limited operating history and have never generated any product revenue.
We will require additional capital to fund our operations, and if we fail to obtain necessary financing, we may not be able to complete
the development and commercialization of our Versamune and Infectimune Products.
Raising  additional  funds  by  issuing  securities  may  cause  dilution  to  existing  stockholders  and  raising  funds  through lending  and
licensing arrangements may restrict our operations or require us to relinquish proprietary rights.
We will need to expand our organization, and may experience difficulties in managing this growth, which could disrupt operations.
Our employees, independent contractors, principal investigators, consultants, commercial collaborators, service providers and other
vendors  may  engage  in  misconduct  or  other  improper  activities,  including  noncompliance  with  regulatory  standards  and
requirements, which could have an adverse effect on our results of operations.
If we fail to maintain an effective system of internal control over financial reporting in the future, we may not be able to  accurately
report  our  financial  condition,  results  of  operations  or  cash  flows,  which  may  adversely  affect  investor  confidence  in  us  and,  as  a
result, the value of our common stock. Further, we continue to incur significant increased costs as a result of operating as a public
company, and our management is required to devote substantial time to compliance initiatives.
Our business and operations would suffer, and could be negatively affected, in the event of system failures or cyberattacks.
Periodic reporting requirements under the Exchange Act and compliance with the Sarbanes-Oxley Act of 2002, including establishing
and maintaining acceptable internal control over financial reporting, are costly and may increase substantially and, as a ® reporting
company,  we  may  take  advantage  of  reduced  reporting  requirements  which  may  make  our  common  stock  less  attractive  to
investors.
Clinical trials are very expensive, time-consuming, difficult to design and implement and involve an uncertain outcome, and if  they
fail  to  demonstrate  safety  and  efficacy  to  the  satisfaction  of  the  FDA,  or  similar  regulatory  authorities,  we  will  be  unable  to
commercialize PDS0101 and other Versamune and Infectimune based products.
Enrollment and retention of subjects in clinical trials is an expensive and time-consuming process and could be made more difficult
or rendered impossible by multiple factors outside our control.
We face significant competition from other biotechnology and pharmaceutical companies, and our operating results will suffer if we
fail to compete effectively.
Our product candidates are in various stages of development and we will not be able to commercialize our product candidates if our
preclinical  studies  do  not  produce  successful  results  and/or  our  clinical  trials  do  not  demonstrate  the  safety  and  efficacy  of  our
product candidates; early results and early understanding of product candidate potential may not be predictive of later success.
We  have  limited  to  no  manufacturing,  sales,  marketing  or  distribution  capability  and  we  must  rely  upon  third  parties  for such
activities.
If we are unable to establish sales, marketing and distribution capabilities either on our own or in collaboration with third parties, it
may not be successful in commercializing PDS0101 and other candidates, if approved.
If we obtain approval to commercialize PDS0101 and other candidates outside of the United States, a variety of risks associated with
international operations could harm our business.

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Recently  enacted  and  future  healthcare  legislation,  regulations,  and  policy  initiatives  may  increase  the  difficulty  and cost  for  us  to
obtain  marketing  approval  of  and  commercialize  PDS0101  and  other  candidates  and  affect  the  prices  we  may  obtain  and  our
profitability.
We  rely,  and  intend  to  continue  to  rely,  on  third  parties  to  conduct  our  clinical  trials  and  perform  some  of  our  research  and
preclinical  studies.  If  these  third  parties  do  not  satisfactorily  carry  out  their  contractual  duties,  fail  to  comply  with  applicable
regulatory  requirements  or  do  not  meet  expected  deadlines,  our  development  programs  may  be  delayed  or subject  to  increased
costs  or  we  may  be  unable  to  obtain  regulatory  approval,  each  of  which  may  have  an  adverse  effect  on  our  business,  financial
condition, results of operations and prospects.
Our stock price is expected to be volatile, and the market price of our common stock may drop in the future.
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.
If we are unable to establish or manage strategic collaborations in the future, our revenue and drug development may be limited.
Our  business  could  be  adversely  affected  by  the  effects  of  health  epidemics,  pandemics,  or  outbreaks  of  infectious  diseases,
including  the  recent  COVID-19  pandemic  and its  variants,  in  regions  where  we  or  third  parties  on  which  we  rely  have  significant
manufacturing facilities, concentrations of clinical trial sites or other business operations. The COVID-19 pandemic could materially
affect  our operations,  including  at  our  headquarters  in  New  Jersey,  and  at  our  clinical  trial  sites,  as  well  as  the  business  or
operations of our manufacturers, CROs or other third parties with whom we conduct business.
If we are unable to obtain and maintain patent protection for our Versamune and Infectimune platforms, PDS0101, or other products
or candidates or if the scope of the patent protection obtained is not sufficiently broad, we may not be able to compete effectively in
our markets.
We  may  be  involved  in  lawsuits  to  protect  or  enforce  our  patents,  the  patents  of  our  licensors  or  our  other  intellectual  property
rights,  or  defend  our  products  and methods  against  the  property  rights  of  others,  which  could  be  expensive,  time  consuming  and
unsuccessful.
If  we  fail  to  comply  with  federal  and  state  healthcare  regulatory  laws,  including  in  our  relationships  with  healthcare  providers  and
customers  and  third-party  payors,  we could  face  criminal  prosecution  and  sanctions,  substantial  civil  penalties,  damages,  fines,
disgorgement, exclusion from participation in governmental healthcare programs, contractual damages, reputational harm, and the
curtailment of our operations, any of which could harm our business.
Our effective tax rate may increase in the future, including as a result of tax legislation changes, which may have a material adverse
effect on our business, financial condition and results of operations.

Risks Related to Our Business, Financial Position and Capital Requirements

We have a limited operating history and have never generated any product revenue.

We are a clinical-stage biopharmaceutical company with a limited operating history. Our operations to date have been limited to organizing our
company  and  developing  the Versamune  platform  and  related  immunotherapy  product  candidates  that  incorporate  the  technology  of  our  Versamune
platform.  We  have  not  yet  successfully  completed  a  large-scale,  pivotal  clinical  trial,  obtained  marketing  approval,  manufactured Versamune  at
commercial  scale,  or  conducted  sales  and  marketing  activities  that  will  be  necessary  to  successfully  commercialize  our  Versamune  products.
Consequently, predictions about our future success or viability may not be as accurate as they could be if we had a longer operating history or a history of
successfully developing and commercializing immunotherapies.

Our ability to generate revenue and achieve and maintain profitability will depend upon our ability to successfully complete the development of our
Versamune-based  oncology products  PDS0101,  PDS0102,  PDS0103,  or  PDS0104,  and  Infectimune  to  treat  infectious  diseases  and  to  obtain  the
necessary regulatory approvals. We have never generated any product revenue and have no immunotherapy candidate in late-stage clinical development
or approved for commercial sale.

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Even if we receive regulatory approval for the sale of the Versamune and Infectimune Products, we do not know when we will begin to generate

revenue from PDS0101, if at all. Our ability to generate revenue depends on a number of factors, including our ability to:

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set  an  acceptable  price  for  Versamune-based  immunotherapy  candidates,  including  the  Versamune  Products,  and  obtain  coverage  and
adequate reimbursement from third-party payors;

establish sales, marketing, manufacturing and distribution systems;

add operational, financial and management information systems and personnel, including personnel to support our clinical, manufacturing and
planned future clinical development and commercialization efforts and operations as a public company;

develop manufacturing capabilities for bulk materials and manufacture commercial quantities of PDS0101 and other Versamune Products at
acceptable cost levels;

achieve  broad  market  acceptance  of  PDS0101  and  other  Versamune  and  Infectimune  based-products  in  the  medical  community  and  with
third-party payors and consumers;

attract and retain an experienced management and advisory team;

launch commercial sales of PDS0101 and other Versamune and Infectimune based-products, whether alone or in collaboration with others;
and

● maintain, expand and protect our intellectual property portfolio.

Because of the numerous risks and uncertainties associated with immunotherapy development and manufacturing, we are unable to predict the
timing or amount of increased development expenses, or when we will be able to achieve or maintain profitability, if at all. Our expenses could increase
beyond  expectations  if  we  are  required  by  the  U.S.  Food  and  Drug  Administration,  or  FDA,  or  comparable  non-U.S.  regulatory authorities,  to  perform
studies or clinical trials in addition to those we currently anticipate. Even if PDS0101 is approved for commercial sale, we anticipate incurring significant
costs  associated  with  the  commercial  launch  of  and  the  related commercial-scale  manufacturing  requirements  for  PDS0101  and  other  Versamune  and
Infectimune products. If we cannot successfully execute on any of the factors listed above, our business may not succeed, and your investment will be
adversely affected.

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

We  have  never  generated  any  product  revenues  and  expect  to  continue  to  incur  substantial  and  increasing  losses  as  we  continue  to  develop
PDS0101  and  other  Versamune  and Infectimune-based  products.  PDS0101  has  not  been  approved  for  marketing  in  the  United  States  and  may  never
receive such approval. As a result, we are uncertain when or if we will achieve profitability and, if so, whether we will be able to sustain it. Our ability to
generate  revenue  and  achieve  profitability  is  dependent  on  our  ability  to  complete  development,  obtain  necessary  regulatory  approvals,  and  have
PDS0101 manufactured and successfully marketed. We cannot assure you that we will be profitable even if we successfully commercialize PDS0101 or
other Versamune and Infectimune-based products. If we successfully obtain regulatory approval to market PDS0101, our revenues will be dependent, in
part, upon, the size of the markets in the territories for which regulatory approval is received, the number of competitors in such markets for the approved
indication, and the price at which we can offer PDS0101. If the indication approved by regulatory authorities is narrower than we expect, or the treatment
population is narrowed by competition, physician choice or treatment guidelines, we may not generate significant revenue from sales of PDS0101, even if
approved. Even if we do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis. If we fail to become and
remain profitable the market price of our common stock and our ability to raise capital and continue operations will be adversely affected.

We expect research and development expenses to increase significantly for PDS0101 and other Versamune and Infectimune-based products. In
addition,  even  if  we  obtain  regulatory approval,  significant  sales  and  marketing  expenses  will  be  required  to  commercialize  PDS0101.  As  a  result,  we
expect to continue to incur significant and increasing operating losses and negative cash flows for the foreseeable future. These losses have had and will
continue to have an adverse effect on our financial position and working capital. As of December 31, 2021 and 2020, we had an accumulated deficit of
$60.7 and $43.8 million, respectively.

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We are dependent on the success of our Versamune and Infectimune products, which are still in early-stage clinical development, and if our
Versamune  and Infectimune  products  do  not  receive  regulatory  approval  or  are  not  successfully  commercialized,  our  business  may  be
harmed.

PDS0101 is only in mid clinical development, and as a consequence, it is too early to determine whether the Versamune and Infectimune-based
products will ever be approved for commercial sale or be marketable. We expect that a substantial portion of our efforts and expenditures over the next
few years will be devoted to PDS0101 and other Versamune and Infectimune-based products. Accordingly, our business currently  depends heavily on the
successful  development,  regulatory  approval  and  commercialization  of  PDS0101.  PDS0101  may  not  receive  regulatory  approval  or  be  successfully
commercialized  even  if  regulatory  approval  is  received.  The  research,  testing, manufacturing,  labeling,  approval,  sale,  marketing  and  distribution  of
PDS0101 is and will remain subject to extensive regulation by the FDA and other regulatory authorities in the United States and other countries that each
have  differing regulations. We are not permitted to market PDS0101 in the United States until it receives approval of a biologics license application, or
BLA, from the FDA, or in any foreign countries until it receives the requisite approval from such countries. To date, we have only completed Phase 1/2A
clinical trials for certain applications of PDS0101. As a result, we have not submitted a BLA to the FDA or comparable applications to other regulatory
authorities and do not expect to be in a position to do so for the foreseeable future. Obtaining approval of a BLA is an extensive, lengthy, expensive and
inherently uncertain process, and the FDA may delay, limit or deny approval of PDS0101 for many reasons, including:

● we may not be able to demonstrate that PDS0101 is safe and effective to the satisfaction of the FDA;

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the FDA may not agree that the completed Phase 2 clinical trials of PDS0101 satisfy the FDA’s requirements and may require us to conduct
additional testing;

the results of our future clinical trials may not meet the level of statistical or clinical significance required by the FDA for marketing approval;

the FDA may disagree with the number, design, size, conduct or implementation of one or more of our clinical trials;

the contract research organizations, or CROs, that we retain to conduct clinical trials may take actions outside of our control that materially
and adversely impact our clinical trials;

the FDA may not find the data from our preclinical studies and clinical trials sufficient to demonstrate that the clinical and other benefits of
PDS0101 outweigh the safety risks;

the FDA may disagree with our interpretation of data from our preclinical studies and clinical trials;

the FDA may not accept data generated at our clinical trial sites;

if our BLA is reviewed by an 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 preclinical studies or clinical trials, limitations on approved labeling or distribution and use restrictions;

the FDA may require development of a risk evaluation and mitigation strategy, or REMS, as a condition of approval;

the FDA may identify deficiencies in our manufacturing processes or facilities; or

the FDA may change its approval policies or adopt new regulations.

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We  will  require  additional  capital  to  fund  our  operations,  and  if  we  fail  to  obtain  necessary  financing,  we  may  not  be  able  to  complete  the
development and commercialization of our Versamune and Infectimune based products.

We expect to spend substantial amounts to complete the development of, seek regulatory approvals for and commercialize PDS0101. Even with
our current cash reserves, we will require substantial additional capital to complete the development and potential commercialization of PDS0101 and the
development  of  other  Versamune  and  Infectimune  based  products.  If  we  are  unable  to  raise  capital  or  find  appropriate  partnering  or licensing
collaborations or other nondilutive financing, when needed or on acceptable terms, if at all, we could be forced to delay, reduce or eliminate one or more of
our development programs or any future commercialization efforts. In addition, attempting to secure additional financing may divert the time and attention
of our management from day-to-day activities and harm our development efforts.

Based upon our current operating plan, we believe that our cash reserves will be sufficient to fund our operating expenses and capital expenditure
requirements for at least the next 24 months from the date of this report. Our estimate as to what we will be able to accomplish is based on assumptions
that may prove to be inaccurate, and we could exhaust our available capital resources sooner than is currently expected. Because the length of time and
activities  associated  with  successful  development  of  PDS0101  is  highly  uncertain,  we  are  unable  to  estimate  the  actual  funds  we  will  require  for
development  and  any  approved  marketing  and  commercialization  activities. Our  future  funding  requirements,  both  near  and  long-term,  will  depend  on
many factors, including, but not limited to:

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the initiation, progress, timing, costs and results of our planned clinical trials;

the outcome, timing and cost of meeting regulatory requirements established by the FDA and other comparable foreign regulatory authorities;

the cost of filing, prosecuting, defending and enforcing our patent claims and other intellectual property rights;

the cost of defending potential intellectual property disputes, including any patent infringement actions brought by third parties against us now
or in the future;

the effect of competing technological and market developments;

the cost of establishing sales, marketing and distribution capabilities in regions where we choose to commercialize PDS0101 on our own; and

the initiation, progress, timing and results of the commercialization of PDS0101, if approved, for commercial sale.

Additional funding may not be available on acceptable terms, or at all. If we are unable to raise additional capital in sufficient amounts or on terms
acceptable  to  us,  we  may have  to  significantly  delay,  scale  back  or  discontinue  the  development  or  commercialization  of  PDS0101  or  potentially
discontinue  operations.  In  July  2019,  we  entered  into  a  common  stock  purchase  agreement,  or  the  Aspire  Purchase  Agreement,  with Aspire  Capital,
which  provides  that,  upon  the  terms  and  subject  to  the  conditions  and  limitations  set  forth  therein,  at  our  discretion,  Aspire  Capital  is  committed  to
purchase up to an aggregate of $20.0 million of shares of our common stock, or the Purchased Shares, over the 30-month term of the Aspire Purchase
Agreement.  We  may  sell  an  aggregate  of  1,034,979  shares  of  our  common  stock  (which  represented  19.99%  of  the  Company’s  outstanding  shares  of
common stock on the date of the Aspire Purchase Agreement) without stockholder approval. We may sell additional shares of our common stock above
the  19.99%  limit  provided  that  (i)  we  obtain  stockholder  approval  or  (ii)  stockholder  approval  has  not  been  obtained  at  any  time  the  1,034,979 share
limitation is reached and at all times thereafter the average price paid for all shares issued under the Aspire Purchase Agreement, is equal to or greater
than  $5.76,  which  was  the  consolidated  closing  bid  price  of  our  common  stock  on  July 26,  2019.    On  July  29,  2019,  we  issued  100,654  shares  of  our
common stock to Aspire Capital, as consideration for entering into the Aspire Purchase Agreement, which we refer to as the Commitment Shares. As of
December  31,  2021,  no  Purchase  Shares have  been  sold  to  Aspire  Capital  under  the  Aspire  Purchase  Agreement.    The  Aspire  Purchase  Agreement
expired in January 2022 and we have no plans to raise capital under the Aspire Purchase Agreement.

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Raising  additional  funds  by  issuing  securities  may  cause  dilution  to  existing  stockholders  and  raising  funds  through  lending  and  licensing
arrangements may restrict our operations or require us to relinquish proprietary rights.

We expect that significant additional capital will be needed in the future to continue our planned operations. Until such time, if ever, as we can
generate substantial product revenues, we expect to finance our cash needs through a combination of equity offerings, debt financings, strategic alliances
and license and development agreements in connection with any collaborations. In February 2020, we completed an underwritten public offering, in which
we  sold  10,000,000  shares  of  common  stock  at  a  public  offering  price  of  $1.30  per  share.  The  shares  sold  included  769,230  shares  issued  upon  the
exercise  by  the  underwriter  of  its  option  to  purchase additional  shares  at  the  public  offering  price.  We  received  gross  proceeds  of  approximately  $13
million and net proceeds of approximately $11.9 million after deducting underwriting discounts and commissions. In July 2020, we filed a shelf registration
statement, or the 2020 Shelf Registration Statement, with the SEC, for the issuance of common stock, preferred stock, warrants, rights, debt securities
and units, which we refer to collectively as the Shelf Securities, up to an aggregate amount of $100 million. The 2020 Shelf Registration Statement was
declared  effective  on  July  31,  2020.  On  August  13,  2020,  we  sold  6,900,000  shares  of  its  common  stock  at  a  public  offering  price  of  $2.75  per  share
pursuant to the 2020 Shelf Registration Statement, which includes 900,000 shares issued upon the exercise by the underwriter of its option to purchase
additional shares at the public offering price, minus underwriting discounts and commissions. We received gross proceeds of approximately $19.0 million
and  net  proceeds  of  approximately  $17.1  million,  after  deducting  underwriting  discounts  and  offering  expenses.  In  June  2021,  we  completed  an
underwritten public offering in which we sold 6,088,235 shares of common stock at a public offering price of $8.50 per share pursuant to the 2020 Shelf
Registration  Statement,  which  includes  794,117  shares  issued  upon  the  exercise  by  the  underwriter  of  its  option  to  purchase  additional  shares  at  the
public offering  price,  minus  underwriting  discounts  and  commissions.  We  received  gross  proceeds  of  approximately  $51.7  million  and  net  proceeds  of
approximately  $48.5  million,  after  deducting  underwriting  discounts  and  offering  expenses.  Approximately $29,300,000  of  Shelf  Securities  remain
available for future sale under the 2020 Shelf Registration Statement.

To the extent that we raise additional capital by issuing equity securities, our existing stockholders’ ownership may experience substantial dilution,
and the terms of these securities may include liquidation or other preferences that adversely affect your rights as a common stockholder. Debt financing
and preferred equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as
incurring additional debt, making capital expenditures, declaring dividends, creating liens, redeeming our stock or making investments.

If we raise additional funds through collaborations, strategic alliances or marketing, distribution or licensing arrangements with third parties, we
may have to relinquish valuable rights to our technologies, future revenue streams, research programs or Versamune Products or grant licenses on terms
that  may  not  be  favorable  to  us.  If  we  are  unable  to  raise  additional  funds  through  equity  or  debt  financings  when needed,  or  through  collaborations,
strategic alliances or marketing, distribution or licensing arrangements with third parties on acceptable terms, we may be required to delay, limit, reduce or
terminate our PDS0101 development or future commercialization efforts or grant rights to develop and market other Versamune and Infectimune products
that we would otherwise develop and market.

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

We  are  highly  dependent  on  our  executive  officers  and  the  other  principal  members  of  the  executive  and  scientific  teams,  particularly  our
President and Chief Executive Officer, Dr. Frank K. Bedu-Addo, our Chief Medical Officer, Dr. Lauren Wood, our Chief Financial Officer, Mr. Matthew Hill
and our Chief Scientific Officer, Dr. Gregory L. Conn. The loss of the services of any of our senior executive officers could impede  the achievement of our
research, development and commercialization objectives. We do not maintain “key person” insurance for any executive officer or employee.

Recruiting and retaining qualified scientific, clinical, and operational personnel is also critical to our success. We may not be able to attract and
retain these personnel on acceptable terms given the competition among numerous pharmaceutical and biotechnology companies for similar personnel.
we also experience competition for the hiring of scientific and clinical personnel from universities and research institutions. Our industry has experienced
an increasing rate of turnover of management and scientific personnel in recent years. In addition, we rely on consultants and advisors, including scientific
and  clinical  advisors,  to  assist  us  in  devising  our  research and  development  and  commercialization  strategy.  Our  consultants  and  advisors  may  be
employed by third parties and have commitments under consulting or advisory contracts with other entities that may limit their availability to advance our
strategic objectives.  If  any  of  these  advisors  or  consultants  can  no  longer  dedicate  a  sufficient  amount  of  time  to  the  company,  our  business  may  be
harmed

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If we fail to obtain or maintain adequate coverage and reimbursement for PDS0101, our ability to generate revenue could be limited.

The  availability  and  extent  of  reimbursement  by  governmental  and  private  payors  is  essential  for  most  patients  to  be  able  to  afford  expensive
treatments. Sales of any of PDS0101 that receive marketing approval will depend substantially, both in the United States and internationally, on the extent
to which the costs of PDS0101 will be paid by health maintenance, managed care, pharmacy benefit and similar healthcare management organizations,
or  reimbursed  by  government  health  administration  authorities,  private  health  coverage  insurers  and  other  third-party  payors.  If  reimbursement  is  not
available, or is available only on a limited basis, we may not be able to successfully commercialize PDS0101. Even if coverage is provided, the approved
reimbursement amount may not be high enough to allow us to establish or maintain adequate pricing that will allow it to realize a sufficient return on our
investment.

Outside the United States, international operations are generally subject to extensive governmental price controls and other market regulations,
and we believe the increasing emphasis on cost-containment initiatives in Europe, Canada and other countries may cause us to price PDS0101 on less
favorable  terms  than  we  currently  anticipate.  In  many  countries,  particularly  the  countries  of  the  European  Union,  the  prices  of medical  products  are
subject to varying price control mechanisms as part of national health systems. In these countries, pricing negotiations with governmental authorities can
take considerable time after the receipt of marketing approval for a product. To obtain reimbursement or pricing approval in some countries, we may be
required to conduct a clinical trial that compares the cost-effectiveness of PDS0101 to other available therapies. In general, the prices of products under
such systems  are  substantially  lower  than  in  the  United  States.  Other  countries  allow  companies  to  fix  their  own  prices  for  products,  but  monitor  and
control company profits. Additional foreign price controls or other changes in pricing regulation could restrict the amount that we are able to charge for
PDS0101. Accordingly, in markets outside the United States, the reimbursement for our products may be reduced compared with the United States and
may be insufficient to generate commercially reasonable revenues and profits.

Moreover, increasing efforts by governmental and third-party payors, in the United States and internationally, to cap or reduce healthcare costs
may  cause  such  organizations  to limit  both  coverage  and  level  of  reimbursement  for  newly  approved  products  and,  as  a  result,  they  may  not  cover  or
provide  adequate  payment  for  PDS0101.  We  expect  to  experience  pricing  pressures  in  connection  with  the  sale  of  PDS0101  due  to  the trend  toward
managed  healthcare,  the  increasing  influence  of  health  maintenance  organizations  and  additional  legislative  changes.  The  downward  pressure  on
healthcare  costs  in  general,  particularly  prescription  drugs  and  surgical  procedures  and other  treatments,  has  become  very  intense.  As  a  result,
increasingly high barriers are being erected to the entry of new products into the healthcare market.

We are unable to predict the future course of federal or state healthcare legislation in the United States directed at broadening the availability of
healthcare  and  containing or  lowering  the  cost  of  healthcare.  The  ACA  and  any  further  changes  in  the  law  or  regulatory  framework  that  reduce  our
revenue or increase our costs could also have a material and adverse effect on our business, financial condition and results of operations.

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

Our  future  financial  performance  and  our  ability  to  commercialize  PDS0101  and  compete  effectively  will  depend,  in  part,  on  our  ability  to
effectively manage any future growth. As of December 31, 2021, we had 22 employees and 2 consultants.  We expect to hire additional employees for our
managerial, clinical, scientific and engineering, operational, manufacturing, sales and marketing teams. We may have operational difficulties in connection
with identifying, hiring and integrating new personnel. Future growth would impose significant additional responsibilities on our management, including the
need to identify, recruit, maintain, motivate and integrate additional employees, consultants and contractors. Also, our management may need to divert a
disproportionate amount of our attention away from our day-to-day activities and devote a substantial amount of time to managing these growth activities.
We may not be able to effectively manage the expansion of our operations, which may result in weaknesses in our infrastructure, give rise to operational
mistakes,  loss  of  business  opportunities,  loss  of  employees  and  reduced  productivity  among remaining  employees.  Our  expected  growth  could  require
significant  capital  expenditures  and  may  divert  financial  resources  from  other  projects,  such  as  the  development  of  PDS0101.  If  we  are  unable  to
effectively manage our growth, our expenses may increase more than expected, our ability to generate and/or grow revenues could be reduced, and we
may not be able to implement our business strategy.

Many of the other pharmaceutical companies that we compete against for qualified personnel and consultants have greater financial and other
resources,  different  risk  profiles and a longer history in the industry than us. They also may provide more diverse opportunities and better chances for
career advancement. Some of these characteristics may be more appealing to high-quality candidates and consultants than what it has to offer. If we are
unable to continue to attract and retain high-quality personnel and consultants, the rate and success at which we can select and develop PDS0101 and
our business will be limited.

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Our employees, independent contractors, principal investigators, consultants, commercial collaborators, service providers and other vendors
may  engage  in misconduct  or  other  improper  activities,  including  noncompliance  with  regulatory  standards  and  requirements,  which  could
have an adverse effect on our results of operations.

We are exposed to the risk that our employees and contractors, including principal investigators, consultants, commercial collaborators, service
providers  and  other  vendors  may engage  in  fraudulent  or  other  illegal  activity.  Misconduct  by  these  parties  could  include  intentional,  reckless  and/or
negligent conduct or other unauthorized activities that violate the laws and regulations of the FDA and other similar regulatory bodies, including those laws
that  require  the  reporting  of  true,  complete  and  accurate  information  to  such  regulatory  bodies,  manufacturing  standards,  federal  and  state  healthcare
fraud  and  abuse  and  health  regulatory  laws  and  other  similar  foreign fraudulent  misconduct  laws,  or  laws  that  require  the  true,  complete  and  accurate
reporting of financial information or data. Misconduct by these parties may also involve the improper use or misrepresentation of information obtained in
the  course  of clinical trials, which could result in regulatory sanctions and serious harm to our reputation. It is not always possible to identify and deter
third-party misconduct, and the precautions we take to detect and prevent this activity may not be effective in controlling unknown or unmanaged risks or
losses  or  in  protecting  us  from  governmental  investigations  or  other  actions  or  lawsuits  stemming  from  a  failure  to  be  in  compliance  with  such  laws  or
regulations.  If  any  such  actions  are instituted against us, and we are not successful in defending ourselves or asserting our rights, those actions could
have a significant impact on our business and financial results, including the imposition of significant civil, criminal and administrative penalties, damages,
monetary fines, possible exclusion from participation in Medicare, Medicaid and other federal healthcare programs, reputational harm, diminished profits
and  future  earnings,  and  curtailment  of  our  operations,  any of  which  could  adversely  affect  our  ability  to  operate  our  business  and  our  results  of
operations.

Our business and operations would suffer, and could be negatively affected, in the event of system failures or cyberattacks

Our computer systems and those of our service providers, including our CROs, are vulnerable to damage from computer viruses, unauthorized
access, natural disasters, terrorism, war and telecommunication and electrical failures.  If such an event were to occur and cause interruptions in our or
their  operations,  it  could  result  in  a  material  disruption  of  our  development  programs.  For  example,  the  loss  of  preclinical  or clinical  trial  data  from
completed, ongoing or planned trials could result in delays in our regulatory approval efforts and significantly increase our costs to recover or reproduce
the data. To the extent that any disruption or security breach were to result in a loss of or damage to data or applications, or inappropriate disclosure of
personal, confidential or proprietary information, we could incur liability and the further development of PDS0101 could be delayed.

A cyberattack or similar incident could occur and result in information theft, data corruption, operational disruption, damage to our reputation or
financial  loss.  Our  industry has  become  increasingly  dependent  on  digital  technologies  to  conduct  certain  development  and  financial  activities.  Our
technologies,  systems,  networks,  or  other  proprietary  information,  and  those  of  our  vendors,  suppliers  and  other  business partners,  may  become  the
target of cyberattacks or information security breaches that could result in the unauthorized release, gathering, monitoring, misuse, loss or destruction of
proprietary and other information, or could otherwise lead to the disruption of our business operations. Cyberattacks are becoming more sophisticated and
certain  cyber  incidents,  such  as  surveillance,  may  remain  undetected  for  an  extended  period  and  could  lead  to  disruptions  in  critical  systems  or  the
unauthorized release of confidential or otherwise protected information. These events could lead to financial loss from remedial actions, loss of business,
disruption of operations, damage to our reputation or potential liability. Our systems and insurance coverage for protecting against cybersecurity risks may
not  be  sufficient.  Further,  as  cyberattacks  continue  to  evolve,  we  may  be  required  to  expend  significant  additional  resources  to  continue  to  modify  or
enhance our protective measures or to investigate and remediate any vulnerability to cyberattacks.

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Our  failure  to  comply  with  international  data  protection  laws  and  regulations  could  lead  to  government  enforcement  actions  and  significant
penalties against us, and adversely impact our operating results.

EU  member  states  and  other  foreign  jurisdictions,  including  Switzerland,  have  adopted  data  protection  laws  and  regulations  which  impose
significant compliance obligations. Moreover, the collection and use of personal health data in the EU, which was formerly governed by the provisions of
the EU Data Protection Directive, was replaced with the EU General Data Protection Regulation, or the GDPR, in May 2018. The GDPR, which is wide-
ranging in scope, imposes several requirements relating to the consent of the individuals to whom the personal data relates, the information provided to
the individuals, the security and confidentiality of the personal data, data breach notification and the use of third-party processors in connection with the
processing  of  personal  data.  The  GDPR  also  imposes  strict  rules  on  the  transfer  of  personal  data  out  of  the  EU  to  the  U.S.,  provides  an  enforcement
authority and imposes large penalties for noncompliance, including the potential for fines of up to €20 million or 4% of the annual global revenues of the
noncompliant  company,  whichever  is  greater.  The  GDPR  requirements  apply  not  only  to  third-party  transactions,  but  also  to  transfers  of  information
between us and our subsidiary, including employee information. The recent implementation of the GDPR has increased our responsibility and liability in
relation to personal data that we process, including in clinical trials, and we may in the future be required to put in place additional mechanisms to ensure
compliance with the GDPR, which could divert management’s attention and increase our cost of doing business. In addition, new regulation or legislative
actions  regarding  data  privacy  and  security  (together  with  applicable  industry  standards)  may  increase  our  costs  of  doing  business.  In  this  regard,  we
expect that there will continue to be new proposed laws, regulations and industry standards relating to privacy and data protection in the United States,
the EU and other jurisdictions, and we cannot determine the impact such future laws, regulations and standards may have on our business.

Our  failure  to  comply  with  state  and/or  national  data  protection  laws  and  regulations  could  lead  to  government  enforcement  actions  and
significant penalties against us, and adversely impact our operating results.

There are numerous other laws and legislative and regulatory initiatives at the federal and state levels addressing privacy and security concerns,
and some state privacy laws apply more broadly than the Health Insurance Portability and Accountability Act, or HIPAA, and associated regulations. For
example,  California  recently  enacted  legislation  -  the  California  Consumer  Privacy  Act,  or  CCPA  -  which  went  into  effect January  1,  2020.  The  CCPA,
among  other  things,  creates  new  data  privacy  obligations  for  covered  companies  and  provides  new  privacy  rights  to  California  residents,  including  the
right  to  opt  out  of  certain  disclosures  of  their  information.  The  CCPA  also  creates  a  private  right  of  action  with  statutory  damages  for  certain  data
breaches, thereby potentially increasing risks associated with a data breach. The CCPA was recently amended by the California Privacy Rights Act, or
CPRA, expanding certain consumer rights such as the right to know. It remains unclear what, if any, additional modifications will be made to these laws by
the California legislature or how these laws will be interpreted and enforced. The potential effects of the CCPA and CPRA and implementing regulations
are significant and may cause us to incur substantial costs and expenses to comply.

If we fail to maintain an effective system of internal control over financial reporting in the future, we may not be able to accurately report our
financial condition, results of operations or cash flows, which may adversely affect investor confidence in us and, as a result, the value of our
common stock. Further, we continue to incur significant increased costs as a result of operating as a public company, and our management is
required to devote substantial time to compliance initiatives.

As  a  public  company,  we  continue  to  incur  significant  legal,  accounting  and  other  expenses  that  we  did  not  incur  as  a  private  company.  In
addition, the Sarbanes-Oxley Act, as well as rules subsequently implemented by the SEC and Nasdaq, impose various requirements on public companies,
including requiring establishment and maintenance of effective disclosure controls and internal control over financial reporting and changes in corporate
governance practices. Our management and other personnel devote a substantial amount of time to these compliance initiatives. Moreover, these rules
and regulations have increased our legal and financial compliance costs and have made some activities more time-consuming and costly.

Effective internal controls over financial reporting are necessary for us to provide reliable financial reports and, together with adequate disclosure
controls  and  procedures, are designed to prevent fraud. Any failure to implement required new or improved controls, or difficulties encountered in their
implementation, could cause us to fail to meet our reporting obligations. In addition, any testing by us conducted in connection with Section 404 of the
Sarbanes-Oxley Act, may reveal deficiencies in our internal control over financial reporting that are deemed to be material weaknesses or that may require
prospective or retroactive changes to our financial statements or identify other areas for further attention or improvement. If we are unable to conclude that
our internal control over financial reporting is effective, or if our independent registered public accounting firm determines we have a material weakness or
significant deficiency in our internal control over financial reporting once that firm begins its Section 404 reviews or becomes aware of either during the
conduct of an audit, we could lose investor confidence in the accuracy and completeness of our financial reports, the market price of our common stock
could decline, and we could be subject to sanctions or investigations by the Nasdaq Capital Market, the SEC or other regulatory authorities. Failure to
remedy any material weakness in our internal control over financial reporting, or to implement or maintain other effective control systems required of public
companies, could also restrict our future access to the capital markets.

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Periodic  reporting  requirements  under  the  Exchange  Act  and  compliance  with  the  Sarbanes-Oxley  Act  of  2002,  including  establishing  and
maintaining  acceptable internal  control  over  financial  reporting,  are  costly  and  may  increase  substantially  and,  as  a  smaller  reporting
company, we may take advantage of reduced reporting requirements which may make our common stock less attractive to investors.

We are subject to the periodic reporting requirements of the Securities Exchange Act of 1934, as amended, or the Exchange Act. Our disclosure
controls and procedures are designed to reasonably assure that information required to be disclosed by us in reports we file or submit under the Exchange
Act is accumulated and communicated to management, recorded, processed, summarized and reported within the time periods specified in the rules and
forms  of  the  SEC.  We  believe  that  any  disclosure  controls  and  procedures  or  internal  controls  and  procedures,  no  matter  how  well  conceived  and
operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Our management and other personnel
devote  a  substantial  amount  of  time  to  these  compliance  initiatives.  Moreover,  these  rules  and  regulations  have  increased  our  legal  and  financial
compliance costs and will make some activities more time-consuming and costly.

In  addition,  the  Sarbanes-Oxley  Act  requires,  among  other  things,  that  we  maintain  effective  disclosure  controls  and  procedures  and  internal
control over financial reporting. In particular, Section 404 of the Sarbanes-Oxley Act will require us to perform system and process evaluation and testing
of our internal control over financial reporting to allow management to report on, and our independent registered public accounting firm to attest to, the
effectiveness of our internal control over financial reporting. We are currently a “smaller reporting company,” but we will cease to be a smaller reporting
company if we have a non-affiliate public float in excess of $250 million and annual revenues in excess of $100 million, or a non-affiliate public float in
excess of $700 million, determined on an annual basis.  As a smaller reporting company, we could take advantage of certain reduced governance and
disclosure requirements, including not being required to comply with the auditor attestation requirements in the assessment of our internal control over
financial  reporting.  As  a  result,  investors  and  others may  be  less  comfortable  with  the  effectiveness  of  our  internal  controls  and  the  risk  that
material  weaknesses  or  other  deficiencies  in  internal  controls  go  undetected  may  increase.  In  addition,  as  a  smaller reporting  company,  we
take advantage of our ability to provide certain other less comprehensive disclosures in our SEC filings, including, among other things, providing only  two
years of audited financial statements in annual reports and simplified executive compensation disclosures. Consequently, it may be more  challenging for
investors to analyze our results of operations and financial prospects, as the information we provide to stockholders may be different from what one might
receive from other public companies.

Risks Related to Clinical Development, Regulatory Approval and Commercialization

Clinical  trials  are  very  expensive,  time-consuming,  difficult  to  design  and  implement  and  involve  an  uncertain  outcome,  and  if  they  fail  to
demonstrate safety and efficacy to the satisfaction of the FDA, or similar regulatory authorities, we will be unable to commercialize PDS0101
and other Versamune and Infectimune-based products.

PDS0101 is still in early-stage clinical development and will require extensive additional clinical testing before we are prepared to submit a BLA
for  regulatory  approval  for any  indication  or  for  any  other  treatment  regime.  We  cannot  predict  with  any  certainty  if  or  when  it  might  submit  a  BLA  for
regulatory approval for PDS0101 and other Versamune  based products or whether any such BLAs will be approved by the FDA. Human clinical trials are
very expensive and difficult to design and implement, in part because they are subject to rigorous regulatory requirements. For instance, the FDA may not
agree with our proposed endpoints for any clinical trial we propose, which may delay the commencement of our clinical trials. The clinical trial process is
also time-consuming. We estimate that the clinical trials we need to conduct to be in a position to submit BLAs for PDS0101 will take several years to
complete.  We  cannot  predict  the  timeline  for  review  of  submissions  to  any  regulatory  authorities  or  when  any  of  our  product  candidates  will  receive
marketing approval,  if  at  all.  The  timeline  for  regulatory  approval  can  be  affected  by  a  variety  of  factors,  including  disruptive  effects  of  the  COVID-19
pandemic, budget and funding levels, agency staffing, and statutory, regulatory and policy changes.

Furthermore, failure can occur at any stage of the trials, and we could encounter problems that cause us to abandon or repeat clinical trials. In
later  stages  of  clinical trials, PDS0101 may fail to show the desired safety and efficacy traits despite having progressed through preclinical studies and
initial clinical trials, and the results of current clinical trials of PDS0101 therefore may not be predictive of the results of our continued or planned Phase 2
and 3 trials. A number of companies in the biopharmaceutical industry have suffered significant setbacks in advanced clinical trials due to lack of efficacy
or adverse safety profiles, notwithstanding promising results in earlier stages of clinical trials.

Moreover,  preclinical  and  clinical  data  are  often  susceptible  to  multiple  interpretations  and  analyses.  Many  companies  that  have  believed  their
immunotherapies  performed satisfactorily in preclinical studies and clinical trials have nonetheless failed to obtain marketing approval of their products.
Success in preclinical testing and early clinical trials does not ensure that later clinical trials, which involve many more subjects and different indications
than we have studied in Phase 2 clinical trials to date, and the results of later clinical trials may not replicate the results of prior clinical trials and preclinical
testing.

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We may experience numerous unforeseen events during, or as a result of, clinical trials that could delay or prevent our ability to receive marketing

approval or commercialize PDS0101 and other Versamune based products, including that:

●

regulators or institutional review boards may not authorize us or our investigators to commence a clinical trial or conduct a clinical trial at a
prospective trial site;

● we may have delays in reaching or fail to reach agreement on acceptable clinical trial contracts with prospective trial sites, or they may be

unwilling to conduct studies based on out protocols;

●

●

clinical  trials  of  PDS0101  may  produce  negative  or  inconclusive  results,  and  we  may  decide,  or  regulators  may  require  us,  to  conduct
additional clinical trials or abandon product development programs;

the  number  of  subjects  required  for  clinical  trials  of  PDS0101  and  other  Versamune   based  products  may  be  larger  than  we anticipate;
enrollment in these clinical trials may be slower than we anticipate, or participants may drop out of these clinical trials at a higher rate than we
anticipate;

● Our third-party contractors may fail to comply with regulatory requirements or meet their contractual obligations to us in a timely manner, or at

all;

●

●

●

●

●

●

●

●

●

●

regulators or institutional review boards may require that we or our investigators suspend or terminate clinical research for various reasons,
including noncompliance with regulatory requirements or a finding that the participants are being exposed to unacceptable health risks;

the cost of clinical trials of PDS0101 and other Versamune  based products may be greater than we anticipate; and

the supply or quality of PDS0101 or other materials necessary to conduct clinical trials of PDS0101 and other Versamune   based products
may be insufficient or inadequate.

If we are required to conduct additional clinical trials or other testing of PDS0101 beyond those that we currently contemplate, if we are unable
to successfully complete clinical trials of PDS0101 or other testing, if the results of these trials or tests are not positive or are only modestly
positive or if there are safety concerns, we may:

be delayed in obtaining marketing approval for PDS0101;

not obtain marketing approval at all;

obtain approval for indications or patient populations that are not as broad as intended or desired;

obtain approval with labeling that includes significant use or distribution restrictions or safety warnings, including boxed warnings;

be subject to additional post-marketing testing requirements; or

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

Product development costs will also increase if we experience delays in testing or in receiving marketing approvals. We do not know whether any
clinical trials will begin as planned, will need to be restructured or will be completed on schedule, or at all. Significant clinical trial delays also could shorten
any periods during which we may have the exclusive right to commercialize PDS0101, could allow our competitors to bring products to market before we
do, and could impair our ability to successfully commercialize PDS0101, any of which may harm our business and results of operations.

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Enrollment  and  retention  of  subjects  in  clinical  trials  is  an  expensive  and  time-consuming  process  and  could  be  made  more  difficult  or
rendered impossible by multiple factors outside our control.

We  may  encounter  delays  in  enrolling,  or  be  unable  to  enroll,  a  sufficient  number  of  participants  to  complete  any  of  our  clinical  trials.  Once
enrolled, we may be unable to retain a sufficient number of participants to complete any of our trials. Late-stage clinical trials of PDS0101 may require the
enrollment and retention of large numbers of subjects. Subject enrollment and retention in clinical trials depends on many factors, including the size of the
subject population, the nature of the trial protocol, the existing body of safety and efficacy data with respect to the study drug, the number and nature of
competing  treatments  and  ongoing  clinical  trials  of competing  drugs  for  the  same  indication,  the  proximity  of  subjects  to  clinical  sites  and  the  eligibility
criteria for the study. Moreover, the current pandemic is negatively impacting enrollment in many oncology clinical trials.

Furthermore, any negative results we may report in clinical trials of PDS0101 may make it difficult or impossible to recruit and retain participants
in  other  clinical  trials  of PDS0101.  Delays  or  failures  in  planned  subject  enrollment  or  retention  may  result  in  increased  costs,  program  delays  or  both,
which could have a harmful effect on our ability to develop PDS0101, or could render further development impractical. In addition, we expect to rely on
CROs and clinical trial sites to ensure proper and timely conduct of our future clinical trials and, while we intend to enter into agreements governing their
services,  we  will  be  limited  in  our  ability  to  compel  their actual  performance  in  compliance  with  applicable  regulations.  Enforcement  actions  brought
against these third parties may cause further delays and expenses related to our clinical development programs.

The successful development of immunotherapies is highly uncertain.

Successful development of immunotherapies is highly uncertain and is dependent on numerous factors, many of which are beyond our control.
Immunotherapies that appear promising in the early phases of development may fail to reach, or be delayed in reaching, the market for several reasons
including: preclinical study results that may show the immunotherapy to be less effective than desired (e.g., the study failed to meet its primary objectives)
or to have harmful or problematic side effects; clinical study results that may show the immunotherapy to be less effective than expected (e.g., the study
failed to meet its primary endpoint) or to have unacceptable side effects;  failure to receive the necessary regulatory approvals or a delay in receiving such
approvals. Among other things, such delays may be caused by slow enrollment in clinical studies, length of time to achieve study endpoints, delays in
receiving  the  necessary  products  or  supplies  for  the  conduct  of  clinical  or  preclinical  trials,  additional  time  requirements  for  data  analysis,  or  Biologics
License  Application  preparation,  discussions  with  the  FDA,  an  FDA  request  for additional  preclinical  or  clinical  data,  FDA  delays  in  inspecting
manufacturing  establishments,  failure  to  receive  FDA  approval  for  manufacturing  processes  or  facilities,  or  unexpected  safety  or  manufacturing  issues;
manufacturing  costs, formulation  issues,  pricing  or  reimbursement  issues,  or  other  factors  that  make  the  immunotherapy  uneconomical;  and  the
proprietary rights of others and their competing products and technologies that may prevent the immunotherapy from being commercialized. Success in
preclinical  and  early  and  interim  clinical  studies  does  not  ensure  that  large-scale  clinical  studies  will  be  successful.  Clinical  results  are  frequently
susceptible to varying interpretations that may delay, limit or prevent regulatory approvals. The length of time necessary to complete clinical studies and to
submit an application for marketing approval for a final decision by a regulatory authority varies significantly from one immunotherapy to the next and may
be difficult to predict. Even if our product candidates are approved, they may be subject to limitations on the indicated uses and populations for which they
may  be  marketed.  They  may  also  be  subject  to  other  conditions  of  approval,  may contain  significant  safety  warnings,  including  boxed  warnings,
contraindications, and precautions, may not be approved with label statements necessary or desirable for successful commercialization, or may contain
requirements for costly post-market testing and surveillance, or other requirements, including the submission of a REMS, to monitor the safety or efficacy
of the products. If we do not receive FDA approval for, and successfully commercialize our product candidates, we  will not be able to generate revenue
from these product candidates in the United States in the foreseeable future, or at all. Any significant delays in obtaining approval for and commercializing
our product candidates will have a material adverse impact on our business and financial condition.

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Index

We  face  significant  competition  from  other  biotechnology  and  pharmaceutical  companies,  and  our  operating  results  will  suffer  if  we  fail  to
compete effectively.

The biotechnology and biopharmaceutical industries are characterized by rapid technological developments and a high degree of competition. As
a result, PDS0101 or other Versamune and Infectimune-based products could become obsolete before we recoup any portion of our related research and
development and commercialization expenses. Competition in the biopharmaceutical industry is based significantly on scientific and technological factors.
These factors include the availability of patent and other protection for technology and products, the ability to commercialize technological developments
and  the  ability  to  obtain  governmental  approval  for  testing, manufacturing  and  marketing.  We  compete  with  specialized  biopharmaceutical  firms  in  the
United States, Europe and elsewhere, as well as a growing number of large pharmaceutical companies that are applying biotechnology to their operations.
Many biopharmaceutical companies have focused their development efforts in the human therapeutics area, including cancer. Many major pharmaceutical
companies have developed or acquired internal biotechnology capabilities or made commercial arrangements with  other  biopharmaceutical  companies.
These companies, as well as academic institutions and governmental agencies and private research organizations, also compete with us in recruiting and
retaining highly qualified scientific personnel and consultants. Our ability to compete successfully with other companies in the pharmaceutical field will also
depend to a considerable degree on the continuing availability of capital to us.

We  are  aware  of  certain  investigational  new  drugs  under  development  or  approved  products  by  competitors  that  are  used  for  the  prevention,
diagnosis, or treatment of certain diseases we have targeted for drug development. Various companies are developing biopharmaceutical products that
have  the  potential  to  directly  compete  with  PDS0101  even  though  their  approach  to  may  be  different.  We  believe  our  top  clinical-stage competitors
pursuing cancer immunotherapies and/or vaccines for infectious diseases include, but not limited to Jansen Pharmaceuticals (part of J&J), Sanofi-Aventis,
GlaxoSmithKline plc, Merck and Pfizer, Inovio, Advaxis, Kite Pharma, Hookipa, Moderna, ZIOPHARM Oncology, Heat Biologics, Harpoon Therapeutics,
Oncosec Medical, BioNTech, Osivax, Medicago, Vaxart, and Flugen. Many of these companies have substantially greater financial, marketing, and human
resources  than  we  do  (including, in  some  cases,  substantially  greater  experience  in  clinical  testing,  manufacturing,  and  marketing  of  pharmaceutical
products). If one or more of these companies is successful in developing their technologies, it could materially impact our business. We also experience
competition in the development of our immunotherapies from universities and other research institutions and competes with others in acquiring technology
from such universities and institutions.

Competition  may  increase  further  as  a  result  of  advances  in  the  commercial  applicability  of  technologies  and  greater  availability  of  capital  for
investment in these industries. Our competitors may succeed in developing, acquiring or licensing, on an exclusive basis, drugs that are more effective or
less costly than PDS0101 or our other Versamune and Infectimune-based products.

We will face competition from other drugs currently approved or that will be approved in the future for the treatment of the other cancers and

infectious diseases we are currently targeting. Therefore, our ability to compete successfully will depend largely on our ability to:

●

●

●

●

●

●

●

develop and commercialize immunotherapies that are superior to other alternatives in the market;

demonstrate through our clinical trials that PDS0101 is differentiated from existing and future therapies;

attract qualified scientific, immunotherapy development and commercial personnel;

obtain additional patent or other proprietary protection for PDS0101 and other Versamune and Infectimune-based products;

obtain required regulatory approvals;

obtain coverage and adequate reimbursement from, and negotiate competitive pricing with, third-party payors; and

successfully develop and commercialize, independently or with collaborators, new applications for PDS0101 or immunotherapies.

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Index

The  availability  of  our  competitors’  immunotherapies  and  other  treatments  could  limit  the  demand,  and  the  price  we  are  able  to  charge,  for
PDS0101. The inability to compete with existing or subsequently introduced immunotherapies and other treatments would have an adverse impact on our
business, financial condition and prospects.

Established  pharmaceutical  companies  may  invest  heavily  to  accelerate  discovery  and  development  of  novel  compounds  or  to  license  novel
compounds  that  could  make  PDS0101  less competitive.  In  addition,  any  new  immunotherapy  that  competes  with  an  approved  treatment  must
demonstrate  compelling  advantages  in  efficacy,  convenience,  tolerability  and  safety  in  order  to  overcome  price  competition  and  to  be  commercially
successful.  Accordingly,  our  competitors  may  succeed  in  obtaining  patent  protection,  discovering,  developing,  receiving  the  FDA’s  approval  for  or
commercializing medicines before we do, which would have an adverse impact on our business and results of operations.

PDS0101  may  cause  adverse  effects  or  have  other  properties  that  could  delay  or  prevent  its  regulatory  approval  or  limit  the  scope  of  any
approved label or market acceptance.

Adverse events caused by PDS0101 could cause reviewing entities, clinical trial sites or regulatory authorities to interrupt, delay or halt clinical
trials and could result in the denial of regulatory approval. If clinical trials for PDS0101 report an unacceptable frequency or severity of adverse events, our
ability to obtain regulatory approval for PDS0101 may be negatively impacted.

Furthermore,  if  PDS0101  is  approved  and  then  causes  serious  or  unexpected  side  effects,  a  number  of  potentially  significant  negative

consequences could result, including:

●

●

regulatory authorities may withdraw their approval of PDS0101 or impose restrictions on its distribution or other risk management measures;

regulatory authorities may require the addition of labeling statements, such as warnings or contraindications;

● we may be required to change the way PDS0101 is administered or to conduct additional clinical trials;

● we could be sued and held liable for injuries sustained by patients;

● we could elect to discontinue the sale of PDS0101;

●

●

our entire Versamune and Infectimune-based pipeline could be then put at risk; and

our reputation may suffer.

Any of these events could prevent us from achieving or maintaining market acceptance of PDS0101 and could substantially increase the costs of

commercialization.

If we are not able to obtain, or if there are delays in obtaining, required regulatory approvals, we will not be able to commercialize, or will be
delayed in commercializing, PDS0101, and our ability to generate revenue will be impaired.

PDS0101  and  the  activities  associated  with  its  development  and  commercialization,  including  its  design,  testing,  manufacture,  safety,  efficacy,
recordkeeping,  labeling, storage, approval, advertising, promotion, sale and distribution, are subject to comprehensive regulation by the FDA and other
regulatory agencies in the United States and by comparable authorities in other countries. Failure to obtain marketing approval for PDS0101 will prevent
us  from  commercializing  PDS0101.  We  have  not  received  approval  to  market  PDS0101  from  regulatory  authorities  in  any  jurisdiction.  We  have  only
limited experience in filing and supporting the applications necessary to gain marketing approvals and expect to rely on CROs to assist us in this process.
Securing  regulatory  approval  requires  the  submission  of  extensive  preclinical  and  clinical  data  and  supporting  information  to  the  various  regulatory
authorities for each therapeutic indication to establish the safety and efficacy of PDS0101. Securing regulatory approval also requires the submission of
information about the product manufacturing process to, and inspection of manufacturing facilities by, the  relevant regulatory authority. PDS0101 may not
be effective, may be only moderately effective or may prove to have undesirable  or  unintended  side  effects,  toxicities  or  other  characteristics  that  may
preclude it from obtaining marketing approval or prevent or limit commercial use.

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Index

The  process  of  obtaining  marketing  approvals,  both  in  the  United  States  and  elsewhere,  is  expensive,  may  take  many  years  and  can  vary
substantially  based  upon  a  variety  of factors.  We  cannot  assure  you  that  we  will  ever  obtain  any  marketing  approvals  in  any  jurisdiction.  Changes  in
marketing  approval  policies  during  the  development  period,  changes  in  or  the  enactment  of  additional  statutes  or  regulations  or  changes in  regulatory
review  for  each  submitted  product  application  may  cause  delays  in  the  approval  or  rejection  of  an  application.  The  FDA  and  comparable  authorities  in
other countries have substantial discretion in the approval process and may refuse to accept any application or may decide that our data is insufficient for
approval  and  require  additional  preclinical  or  other  studies,  and  clinical  trials.  In  addition,  varying  interpretations  of  the  data  obtained  from  preclinical
testing and clinical trials could delay, limit or prevent marketing approval of PDS0101. Additionally, any marketing approval we ultimately obtain may be
limited or subject to restrictions or post-approval commitments that render the approved product not commercially viable.

We rely, and intend to continue to rely, on third parties to conduct our clinical trials and perform some of our research and preclinical studies.
If  these third  parties  do  not  satisfactorily  carry  out  their  contractual  duties,  fail  to  comply  with  applicable  regulatory  requirements  or  do  not
meet expected deadlines, our development programs may be delayed or subject to increased costs or we may be unable to obtain regulatory
approval, each of which may have an adverse effect on our business, financial condition, results of operations and prospects.

There  is  no  guarantee  that  any  such  CROs,  clinical  trial  investigators  or  other  third  parties  on  which  we  rely  will  devote  adequate  time  and
resources  to  our  development activities or perform as contractually required. If any of these third parties fail to meet expected deadlines, adhere to our
clinical protocols or meet regulatory requirements, otherwise perform in a substandard manner, or terminate their engagements with us, the timelines for
our development programs may be extended or delayed or our development activities may be suspended or terminated. If our clinical trial site terminates
for any reason, we may experience the loss of follow-up information on subjects enrolled in such clinical trial unless we are able to transfer those subjects
to  another  qualified  clinical  trial  site,  which  may  be  difficult  or  impossible.  In  addition,  certain  of  our  scientific  advisors  or  consultants  who receive
compensation from us are clinical trial investigators for our clinical trial. Although we believe our existing relationships are within the FDA’s guidelines, if
these  relationships  and  any  related  compensation  result  in  perceived  or  actual conflicts of interest, or the FDA concludes that the financial relationship
may have affected the interpretation of the trial, the integrity of the data generated at the applicable clinical trial site may be questioned and the utility of
the clinical trial itself may be jeopardized, which could result in the delay or rejection of any marketing application we submit by the FDA. Any such delay
or rejection could prevent us from commercializing PDS0101 or any other product candidates.

Even  if  we  obtain  FDA  approval  in  the  United  States,  we  may  never  obtain  approval  for  or  commercialize  PDS0101  in  any  other  jurisdiction,
which would limit our ability to realize each product’s full market potential.

In order to market PDS0101 in a particular jurisdiction, we must establish and comply with numerous and varying regulatory requirements on a
country-by-country  basis  regarding safety and efficacy. Approval by the FDA in the United States does not ensure approval by regulatory authorities in
other countries or jurisdictions.

In addition, clinical trials conducted in one country may not be accepted by regulatory authorities in other countries, and regulatory approval in
one country does not guarantee regulatory approval in any other country. Approval processes vary among countries and can involve additional testing and
validation  and  additional  administrative  review  periods.  Seeking  foreign  regulatory  approval  could  result  in difficulties  and  costs  for  us  and  require
additional preclinical studies or clinical trials that could be costly and time consuming. Regulatory requirements can vary widely from country to country
and could delay or prevent the introduction of PDS0101 in those countries. PDS0101 is not approved for sale in any jurisdiction, including in international
markets,  and  we  do  not  have  experience  in  obtaining  regulatory  approval  in  international  markets.  If  we  fail  to  comply  with  regulatory requirements  in
international markets or to obtain and maintain required approvals, or if regulatory approvals in international markets are delayed, our target market will be
reduced.

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

From time to time, we may publicly disclose interim, topline or preliminary data from our sponsored or investigator initiated clinical trials, such as
preliminary  topline results  which  are  based  on  a  preliminary  analysis  of  then-available  data,  and  the  results  and  related  findings  and  conclusions  are
subject to change following a full analysis of all data related to the particular trial. We also make assumptions, estimations, calculations and conclusions as
part  of  our  analyses  of  data,  and  we  may  not  have  received  or  had  the  opportunity  to  fully  and  carefully  evaluate  all  data.  In  addition,  we  may  report
preliminary  analyses  of  only  certain  endpoints rather  than  all  endpoints.  As  a  result,  the  interim,  topline  or  preliminary  results  that  we  report  may  differ
from future results of the same trials, or different conclusions or considerations may qualify such results, once additional data have been received and fully
evaluated.  Topline  data  also  remain  subject  to  audit  and  verification  procedures  that  may  result  in  the  final  data  being  materially  different  from  the
preliminary data we previously published. As a result, interim, topline and preliminary data should be viewed with caution until the final data are available.
We may also disclose interim data from our clinical trials. Interim data from clinical trials that we may complete are subject to the risk that one or more of
the  clinical  outcomes  may  materially  change  as  subject  enrollment  continues  and  more  subject  data  become  available.  Adverse  differences  between
interim, topline or preliminary data and final data could significantly harm our reputation and business prospects. Further, disclosure of interim, topline or
preliminary data by us or by our competitors could result in volatility in the price of our common stock.

Further, others, including regulatory agencies, may not accept or agree with our assumptions, estimates, calculations, conclusions or analyses or
may interpret or weigh the importance of data differently, which could impact the potential of the particular program, the likelihood of marketing approval
or  commercialization  of  the  particular  drug  candidate,  any  approved  product,  and  our  company  in  general.  In  addition, the  information  we  choose  to
publicly disclose regarding a particular study or clinical trial is derived from information that is typically extensive, and you or others may not agree with
what  we  determine  is  material  or  otherwise  appropriate information  to  include  in  our  disclosure,  and  any  information  we  determine  not  to  disclose  may
ultimately be deemed significant with respect to future decisions, conclusions, views, activities or otherwise regarding a particular program, drug candidate
or our business.

If the interim, topline or preliminary data that we report differ from actual results, or if others, including regulatory authorities, disagree with the
conclusions reached, our ability to pursue strategic alternatives, including identifying and consummating transactions with third-party partners, to further
develop,  obtain  marketing  approval  for  and/or  commercialize  our  drug  candidates  may  be  harmed,  which  could harm  our  business,  operating  results,
prospects or financial condition.

Our  product  candidates  are  in  various  stages  of  development  and  we  will  not  be  able  to  commercialize  our  product  candidates  if  our
preclinical  studies  do not  produce  successful  results  and/or  our  clinical  trials  do  not  demonstrate  the  safety  and  efficacy  of  our  product
candidates; early results and early understanding of product candidate potential may not be predictive of later success.

Our  oncology  and  infectious  disease  product  candidates  are  susceptible  to  the  risks  of  failure  inherent  at  any  stage  of  product  development,
including  the  occurrence  of unexpected  or  unacceptable  adverse  events  or  the  failure  to  demonstrate  efficacy  in  clinical  trials.  Clinical  development  is
expensive and can take many years to complete, and its outcome is inherently uncertain.

The results of preclinical studies, preliminary study results, and early clinical trials of our product candidates may not be predictive of the results of
later-stage clinical  trials. Our product candidates may not perform as we expect, may ultimately have a different or no impact than expected, may have a
different mechanism of action than we initially understand or that we expect in humans, and may not ultimately prove to be safe and effective.

Preliminary and final results from preclinical studies and early-stage trials, and trials in compounds that we believe are similar to ours, may not be
representative  of  results that are found in larger, controlled, blinded, and longer-term studies. Product candidates may fail at any stage of preclinical or
clinical development. Product candidates may fail to show the desired safety and efficacy traits even if they have progressed through preclinical studies or
initial  clinical  trials.  Preclinical  studies  and  clinical  trials  may  also  reveal  unfavorable  product  candidate  characteristics,  including  safety  concerns.  A
number  of  companies  in  the  biopharmaceutical industry  have  suffered  significant  setbacks  in  clinical  trials,  notwithstanding  promising  results  in  earlier
preclinical studies or clinical trials or promising mechanisms of action. In some instances, there can be significant variability in safety or  efficacy  results
between  different  clinical  trials  of  the  same  product  candidate  due  to  numerous  factors,  including  changes  in  trial  procedures  set  forth  in  protocols,
differences in the size and type of the patient populations, changes in and adherence to the clinical trial protocols and the rate of dropout among clinical
trial participants. Moreover, should there be an issue with the design of a clinical trial, our results may be impacted. We may not discover such a flaw until
the clinical trial is at an advanced stage.

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We  may  also  experience  numerous  unforeseen  events  during,  or  as  a  result  of,  clinical  trials  that  could  delay  or  prevent  our  ability  to  receive
marketing  approval  or commercialize  our  product  candidates.    There  may  be  emerging  new  data  or  regulatory  questions  or  disagreements  regarding
interpretations of data and results at any stage.  For example, the FDA or comparable foreign regulatory authorities may disagree with our study design,
including endpoints, or our interpretation of data from preclinical studies and clinical trials or find that a product candidate’s benefits do not outweigh its
safety risks.

Even  if  we  obtain  regulatory  approval,  we  will  still  face  extensive  ongoing  regulatory  requirements  and  PDS0101  and  other  candidates  may
face future development and regulatory difficulties.

Marketing  of  PDS0101,  if  approved,  along  with  the  manufacturing  processes,  post-  approval  clinical  data,  labeling,  packaging,  distribution,
adverse event reporting, storage, recordkeeping, export, import, advertising and promotional activities for PDS0101, among other things, will be subject to
extensive  and  ongoing  requirements  of  and  review  by  the  FDA  and  other  regulatory  authorities.  These  requirements  include submissions  of  safety,
efficacy  and  other  post-marketing  information  and  reports,  establishment  registration  and  drug  listing  requirements,  continued  compliance  with  current
Good  Manufacturing  Practice,  or  cGMP,  requirements  relating  to  manufacturing,  quality  control,  quality  assurance  and  corresponding  maintenance  of
records and documents, requirements regarding the distribution of samples to physicians and recordkeeping and current Good Clinical Practice, or cGCP
requirements for  any  clinical  trials  that  we  conduct  post-approval.  Even  if  marketing  approval  of  PDS0101  is  granted,  the  approval  may  be  subject  to
limitations  on  the  indicated  uses  for  which  PDS0101  may  be  marketed  or  to  the  conditions  of  approval.  If  PDS0101 receives  marketing  approval,  an
accompanying label may limit the approved use of PDS0101, which could limit sales.

The FDA may also impose requirements for costly post-marketing studies or clinical trials and surveillance to monitor the safety and/or efficacy of
PDS0101. The FDA closely regulates the post-approval marketing and promotion of drugs to ensure drugs are marketed only for the approved indications
and in accordance with the provisions of the approved labeling. The FDA imposes stringent restrictions on manufacturers’ communications regarding off-
label  use  and  if  we  promote  or  otherwise  market  PDS0101  for  indications  other  than  those  for  which  it  is  approved,  we  may  be  subject  to  certain
enforcement  actions.  Violations  of  the  Federal  Food,  Drug,  and  Cosmetic  Act relating  to  the  promotion  of  prescription  biopharmaceutical  products  may
lead to FDA enforcement actions and investigations alleging violations of federal and state health care fraud and abuse laws, as well as state consumer
protection laws.

In addition, later discovery of previously unknown adverse events or other problems with PDS0101, manufacturers or manufacturing processes,

or failure to comply with regulatory requirements, may yield various results, including:

●

●

●

●

restrictions on manufacturing PDS0101;

restrictions on the labeling or marketing of PDS0101;

restrictions on PDS0101 distribution or use;

requirements to conduct post-marketing studies or clinical trials;

● warning letters;

● withdrawal of PDS0101 from the market;

●

●

●

●

●

●

●

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

recalls of PDS0101;

fines, restitution or disgorgement of profits or revenues;

suspension or withdrawal of marketing approvals;

refusal to permit the import or export of PDS0101;

seizures of PDS0101; or

injunctions or the imposition of civil or criminal penalties.

The FDA’s policies may change and additional government regulations may be enacted that could prevent, limit or delay regulatory approval of
PDS0101. If we are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we are not able to
maintain regulatory compliance, we may lose any marketing approvals or licenses that we may have obtained.

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Even  if  PDS0101  receives  licensure,  it  may  fail  to  achieve  market  acceptance  by  physicians,  patients,  third-party  payors  or  others  in  the
medical community necessary for commercial success.

If PDS0101 receives marketing approval, it may nonetheless fail to gain sufficient market acceptance by physicians, patients, third-party payors
and  others  in  the  medical community.  If  PDS0101  does  not  achieve  an  adequate  level  of  acceptance,  we  may  not  generate  significant  revenues  and
become profitable. The degree of market acceptance, if approved for commercial sale, will depend on a number of factors, including but not limited to:

●

●

●

●

●

●

●

●

●

●

●

the efficacy and potential advantages compared to alternative treatments;

effectiveness of sales and marketing efforts;

the cost of treatment in relation to alternative treatments;

our ability to offer PDS0101 for sale at competitive prices;

the convenience and ease of administration compared to alternative treatments;

the willingness of the target patient population to try new therapies and of physicians to prescribe these therapies;

the willingness of the medical community to offer customers PDS0101 in addition to or in the place of other immunotherapies;

the strength of marketing and distribution support;

the availability of third-party coverage and adequate reimbursement;

the prevalence and severity of any side effects; and

any restrictions on the use of PDS0101 together with other medications.

Because we expect sales of PDS0101, if approved, to generate substantially all of our revenues for the foreseeable future, the failure of PDS0101

to achieve market acceptance would harm our business and could require us to seek additional financing sooner than we otherwise plan.

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

Because  we  have  limited  financial  and  managerial  resources,  we  are  initially  developing  our  lead  product  candidate,  PDS0101  and  the  other
Versamune  and  Infectimune-based  products.  As  a  result,  we  may  forego  or  delay  pursuit  of  opportunities  with  other  product  candidates  or  for  other
indications  that  later  prove  to  have  greater  commercial  potential.  Our  resource  allocation  decisions  may  cause  us  to  fail  to  timely capitalize  on  viable
commercial products or profitable market opportunities. Our spending on current and future research and development programs and product candidates
for specific indications may not yield any commercially viable products. If we do not accurately evaluate the commercial potential or target market for a
particular product candidate, we may relinquish valuable rights to that product candidate through collaboration, licensing or other royalty arrangements in
cases in which it would have been more advantageous for us to retain sole development and commercialization rights to such product candidate.

If we fail to comply with federal and state healthcare regulatory laws, including in our relationships with healthcare providers and customers
and third-party payors, we could face criminal prosecution and sanctions, substantial civil penalties, damages, fines, disgorgement, exclusion
from participation in governmental healthcare programs, contractual damages, reputational harm, and the curtailment of our operations, any
of which could harm our business.

Although  we  do  not  provide  healthcare  services  or  submit  claims  for  third-party  reimbursement,  we  are  subject  to  healthcare  fraud  and  abuse
regulation  and  enforcement  by federal and state governments, which could significantly impact our business, particularly if and when we commercialize
any product candidates and if and when payment becomes available from payors for our products. Additionally, our future arrangements with third-party
payors and customers may 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 medicines for which we obtain marketing approval. The laws
that may affect our ability to operate include, but are not limited to:

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The  Federal  Anti-Kickback  Statute  (AKS),  which  prohibits,  among  other  things,  persons  and  entities  from  knowingly  and  willfully  soliciting,
receiving, offering, or paying remuneration, directly or indirectly, in cash or in kind, in exchange for or to induce either the referral of an individual for, or
the purchase, lease, order or recommendation of, any good, facility, item or service for which payment may be made, in whole or in part, under federal
healthcare programs such as Medicare and Medicaid. The Affordable Care Act, among other things, amended the intent requirements of the federal AKS.
A  person  or  entity  can  now  be  found  guilty  of  violating  the  AKS without  actual  knowledge  of  the  statute  or  specific  intent  to  violate  it.  In  addition,  the
Affordable Care Act provides that a claim including items or services resulting from a violation of the federal AKS constitutes a false or fraudulent claim for
purposes of the FCA.

The  False  Claims  Act’s  civil  provisions,  which  prohibit,  among  other  things,  individuals  or  entities  from  knowingly  presenting,  or  causing  to  be
presented, claims for payment from Medicare, Medicaid or other third-party payors that are false or fraudulent; knowingly making using, or causing to be
made or used, a false record or statement to get a false or fraudulent claim paid or approved by the government; or knowingly making, using, or causing to
be made or used, a false record or statement to avoid, decrease or conceal an obligation to pay money to the federal government.  Intent to deceive is not
required to establish liability under the civil False Claims Act.

The False Claims Act’s criminal provisions, which imposes criminal fines or imprisonment against individuals or entities who make or present a

claim to the government knowing such claim to be false, fictitious or fraudulent.

The  federal  Health  Insurance  Portability  and  Accountability  Act  of  1996,  or  HIPAA,  as  amended,  prohibits,  among  other  actions,  executing  or
attempting to execute, a scheme to defraud or to obtain, by means of false or fraudulent pretenses, representations, or promises, any of the money or
property owned by, or under the custody or control of, a healthcare benefit program, regardless of whether the payor is public or private, knowingly and
willfully embezzling or stealing from a health care benefit program, willfully obstructing a criminal investigation of a health care offense, and knowingly and
willfully falsifying, concealing, or covering up by any trick or device a material fact or making any materially false statements in connection with the delivery
of, or payment for, healthcare benefits, items, or services relating to healthcare matters.

HIPAA, as amended by the HITECH Act, and its respective implementing regulations, now makes HIPAA’s privacy and security standards directly
applicable to business associates independent contractors or agents of covered entities that receive or obtain protected health information in connection
with providing a service on behalf of a covered entity.

Section  5(a)  of  the  Federal  Trade  Commission  Act,  or  the  FTCA,  15  USC  §  45(a),  given  that  even  for  entities  that  are  not  deemed  “covered
entities” or “business associates” under HIPAA, according to the United States Federal Trade Commission, or the FTC, failing to take appropriate steps to
keep  consumers’  personal  information  secure  constitutes  unfair  acts  or  practices  in  or  affecting  commerce  in  violation  of  its laws.  The  FTC  expects  a
company’s data security measures to be reasonable and appropriate in light of the sensitivity and volume of consumer information it holds, the size and
complexity of its business, and the cost  of  available  tools  to  improve security  and  reduce  vulnerabilities.  Medical  data  is  considered  sensitive  data  that
merits stronger safeguards. The FTC’s guidance for appropriately securing consumers’ personal information is similar to what is required by the HIPAA
Security Rule.

The  federal  ”Sunshine”  and  “Open  Payments”  requirements  under  the  Patient  Protection  and  Affordable  Care  Act,  as  amended  by  the  Health
Care Education Reconciliation Act, or collectively, the Affordable Care Act, which require certain manufacturers of drugs, devices, biologics, and medical
supplies  to  report  annually  to  the  U.S.  Department  of  Health  and  Human  Services  information  related  to  payments  and  other  transfers of  value  to
physicians, other healthcare providers, and teaching hospitals, and ownership and investment interests held by physicians and other healthcare providers
and their immediate family members. Failure to submit timely, accurately, and  completely the required information may result in civil monetary penalties of
up to an aggregate of $150,000 per year and up to an aggregate of $1 million per year for “knowing failures.” In 2022 the Sunshine Act will be extended to
payments and transfers of value to physician assistants, nurse practitioners, and other mid-level practitioners (with reporting requirements going into effect
in 2022 for payments made in 2021). In addition, Section 6004 of the ACA requires annual reporting of information about drug samples that manufacturers
and authorized distributors provide to healthcare providers.

State law equivalents of each of the above federal laws and state laws otherwise addressing the pharmaceutical and healthcare industries, such
as anti-kickback and false claims laws that may apply to sales or marketing arrangements and claims involving healthcare items or services reimbursed by
any third-party payor, including commercial insurers, and in some cases that may apply regardless of payor, i.e., even if  reimbursement is not available;
state laws that require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary compliance guidelines (the PhRMA Code) and
the  relevant  compliance  program  guidance  promulgated  by  the  federal government  (HHS-OIG),  or  otherwise  prohibit,  restrict  or  impose  tracking  and
disclosure requirements related to payments, gifts, or others remuneration that may be made to healthcare providers and other potential referral sources,
or marketing practices to such persons and entities or drug pricing information; data privacy and security laws and regulations in foreign jurisdictions that
may  be  more  stringent  than  those  in  the  United  States  (such  as  the  European  Union,  which  adopted  the General  Data  Protection  Regulation,  which
became effective in May 2018) and state laws governing the privacy and security of information in certain circumstances, many of which differ from each
other in significant ways and may not have the same effect, and may apply more broadly than HIPAA, thus complicating compliance efforts.

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In  our  business,  healthcare  providers,  physicians  and  third-party  payors  will  play  a  primary  role  in  the  recommendation  and  prescription  of  our
product candidates, if approved for marketing. Moreover, while we do not plan to submit claims and our customers will make the ultimate decision on how
to submit claims, from time to time, we may provide reimbursement guidance to our customers. Current or future arrangements with physicians and other
healthcare  providers  and  customers,  and  third-party  payors,  may  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 medicines for
which we obtain marketing approval. If a government authority were to conclude that we provided improper advice to our customers or encouraged the
submission  of  false claims  for  reimbursement  or  failed  to  comply  with  government  price  reporting  requirements,  or  engaged  in  off-label  promotion  of
products, we could face action  by  government  authorities.  Any  violations  of  these  laws,  or  any  action  against  us  for violation  of  these  laws,  even  if  we
successfully defend against it, could result in a material adverse effect on our reputation, business, results of operations and financial condition.

  We  have  entered  into  consulting  and  employment  arrangements  with  individuals,  physicians  and  other  healthcare  providers.  While  we  have
worked to structure our arrangements to comply with applicable laws, because of the complex and far-reaching nature of these laws, regulatory agencies
may view these transactions as prohibited arrangements that must be restructured, or discontinued, or for which we could be subject to other significant
penalties. We could be adversely affected if regulatory agencies interpret our financial relationships with providers who serve as clinical investigators in
our clinical trials, or influence the ordering of and use our products to be in violation of applicable laws.

The  scope  and  enforcement  of  each  of  these  laws  is  uncertain  and  subject  to  rapid  change  in  the  current  environment  of  healthcare  reform,
especially  in  light  of  the  lack  of applicable  precedent  and  regulations.  Federal  and  state  enforcement  bodies  have  recently  increased  their  scrutiny  of
interactions  between  healthcare  companies  and  healthcare  providers,  which  has  led  to  a  number  of  investigations,  prosecutions, convictions  and
settlements in the healthcare industry.

Responding to investigations can be time- and resource-consuming and can divert management’s attention from the business. Additionally, as a
result of these investigations, healthcare providers and entities may have to agree to additional onerous compliance and reporting requirements as part of
a consent decree or corporate integrity agreement. Any such investigation or settlement could increase our costs or otherwise have an adverse effect on
our business.

Product liability lawsuits against us could cause us to incur substantial liabilities and could limit the commercialization of PDS0101.

We face an inherent risk of product liability exposure related to the testing of PDS0101 in human clinical trials and will face an even greater risk if

we commercially sell any products that we may develop after approval. Regardless of merit or eventual outcome, liability claims may result in:

●

●

decreased demand for PDS0101 or other immunotherapies that we may develop;

injury to our reputation and significant negative media attention;

● withdrawal of clinical trial participants;

●

●

●

●

significant costs to defend any related litigation;

substantial monetary awards to trial subjects or patients;

loss of revenue; and

the inability to commercialize any products we may develop.

Although we maintain product liability insurance coverage in the amount of up to $10 million per claim and $10 million in the aggregate, it may not
be adequate to cover all liabilities that it may incur. We anticipate that we will need to increase our insurance coverage as we continue clinical trials and if
we  successfully  commercialize  any  products.  Insurance  coverage  is  increasingly  expensive.  We  may  not  be  able  to maintain  insurance  coverage  at  a
reasonable cost or in an amount adequate to satisfy any liability that may arise.

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If we are unable to establish sales, marketing and distribution capabilities either on our own or in collaboration with third parties, we may not
be successful in commercializing PDS0101, if approved.

We  do  not  have  any  infrastructure  for  the  sales,  marketing  or  distribution  of  PDS0101,  and  the  cost  of  establishing  and  maintaining  such  an
organization may exceed the cost-effectiveness of doing so. In order to market PDS0101, we must build our sales, distribution, marketing, managerial and
other non-technical capabilities or make arrangements with third parties to perform these services. To achieve commercial success for PDS0101, we will
need either our own, or a third party’s, sales and marketing organization. There are significant expenses and risks involved with creating teams for, or
contracting for, sales, marketing and distribution capabilities.  Any failure or delay in the development of our sales, marketing and distribution capabilities,
either internally or in collaboration with third parties, could delay the launch of PDS0101, which would adversely affect commercialization.

We may be competing with many companies that currently have extensive and well-funded marketing and sales operations. Without an internal
team or the support of a third-party to perform marketing and sales functions, we may be unable to compete successfully against these more established
companies.

If we obtain approval to commercialize PDS0101 outside of the United States, a variety of risks associated with international operations could
harm our business.

If PDS0101 is approved for commercialization, we may enter into agreements with third parties to market them in certain jurisdictions outside the
United States. We expect that we will be subject to additional risks related to international operations or entering into international business relationships,
including:

●

●

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●

●

●

●

●

different regulatory requirements for drug approvals and rules governing drug commercialization in foreign countries;

reduced protection for intellectual property rights;

unexpected changes in tariffs, trade barriers and regulatory requirements;

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

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

foreign reimbursement, pricing and insurance regimes;

foreign taxes;

foreign  currency  fluctuations,  which  could  result  in  increased  operating  expenses  and  reduced  revenues,  and  other  obligations  incident  to
doing business in another country;

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

●

●

●

potential  noncompliance  with  the  U.S.  Foreign  Corrupt  Practices  Act,  the  U.K.  Bribery  Act  2010  and  similar  anti-bribery  and  anticorruption
laws in other jurisdictions;

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

business interruptions resulting from geopolitical actions, including war and terrorism, or natural disasters including earthquakes, typhoons,
floods and fires.

We have no prior experience in these areas. In addition, there are complex regulatory, tax, labor and other legal requirements imposed by both

the European Union and many of the individual countries in Europe with which we will need to comply.

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Recently  enacted  and  future  healthcare  legislation,  regulations,  and  policy  initiatives  may  increase  the  difficulty  and  cost  for  us  to  obtain
marketing approval of and commercialize PDS0101 and affect the prices we may obtain and our profitability.

In  the  United  States  and  some  foreign  jurisdictions,  there  have  been  a  number  of  legislative  and  regulatory  changes  and  proposed  changes
regarding  the  healthcare  system  that could,  among  other  things,  prevent  or  delay  marketing  approval  of  PDS0101,  restrict  or  regulate  post-approval
activities and affect our ability to profitably sell PDS0101.

For  example,  in  March  2010,  the  Affordable  Care  Act,  or  ACA,  was  enacted  to  broaden  access  to  health  insurance,  reduce  or  constrain  the
growth  of  healthcare  spending,  enhance remedies  against  fraud  and  abuse,  add  new  transparency  requirements  for  health  care  and  health  insurance
industries, impose new taxes and fees on the health industry and impose additional health policy reforms. Since its enactment, there have been judicial,
executive and Congressional challenges to certain aspects of the ACA. On June 17, 2021, the U.S. Supreme Court dismissed the most recent judicial
challenge to ACA brought by several states without specifically ruling on the constitutionality of the Act. Prior to the Supreme Court’s decision, President
Biden issued an executive order to initiate a special enrollment period from February 15, 2021 through August 15, 2021 for purposes of obtaining health
insurance coverage  through  the  ACA  marketplace.  The  executive  order  also  instructed  certain  governmental  agencies  to  review  and  reconsider  their
existing policies and rules that limit access to healthcare, including among others, reexamining Medicaid demonstration projects and waiver programs that
include work requirements, and policies that create unnecessary barriers to obtaining access to health insurance coverage through Medicaid or the ACA.
It is unclear how other healthcare reform measures of the Biden administration or other efforts, if any, to challenge, repeal or replace the ACA will impact
health care laws and regulations or our business.

As  another  example,  the  Drug  Supply  Chain  Security  Act  imposes  obligations  on  manufacturers  of  prescription  biopharmaceuticals  in  finished
dosage forms for commercial distribution. We have not yet adopted the significant measures that will be required to comply with this law. We are not sure
whether additional legislative changes will be enacted, or whether the current regulations, guidance or interpretations will be changed, or what the impact
of such changes on our business, if any, may be.

We expect that additional state and 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 immunotherapies, which could result in reduced demand for PDS0101 or additional pricing pressures.

Risks Related to Our Dependence on Third Parties

We have no manufacturing, sales, marketing or distribution capability and we must rely upon third parties for such.

We currently have agreements with various third-party manufacturing facilities for production of our products for research and development and
testing purposes. We depend on third-party manufacturers to supply our preclinical and clinical materials and will be reliant on a third-party manufacturer
to  produce  PDS0101  on  a  commercial  scale,  should  that  product  receive  regulatory  approval.  Third-party  manufacturers  must be  able  to  meet  our
deadlines and adhere to quality standards and specifications. Our predominant reliance on third parties for the manufacture of PDS0101 and all of our
Versamune and Infectimune-based products creates a dependency that could severely disrupt our research and development, clinical testing, and sales
and marketing efforts if the source of such supply proves to be unreliable or unavailable. There is no assurance that any third-party manufacturers will be
able to meet commercialized scale production requirements in a timely manner or in accordance with applicable standards or cGMP.

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

We  intend  to  rely  on  CROs  and  clinical  trial  sites  to  ensure  the  proper  and  timely  conduct  of  our  clinical  trials,  and  we  expect  to  have  limited

influence over their actual performance.

We  intend  to  rely  upon  CROs  to  monitor  and  manage  data  for  our  clinical  programs.  We  expect  to  control  only  certain  aspects  of  our  CROs’
activities.  Nevertheless,  we  will  be responsible  for  ensuring  that  each  of  our  studies  is  conducted  in  accordance  with  the  applicable  protocol,  legal,
regulatory and scientific standards and our reliance on the CROs does not relieve us of our regulatory responsibilities.

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We and our CROs will be required to comply with the Good Laboratory Practices and GCPs, which are regulations and guidelines enforced by the
FDA  and  are  also  required  by  the Competent  Authorities  of  the  Member  States  of  the  European  Economic  Area  and  comparable  foreign  regulatory
authorities  in  the  form  of  International  Conference  on  Harmonization  guidelines  for  our  products.  The  Regulatory  authorities  enforce  GCPs through
periodic inspections of trial sponsors, principal investigators and clinical trial sites. If we or our CROs fail to comply with GCPs, the clinical data generated
in our clinical trials 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. Accordingly, if our CROs fail to comply with these regulations or fail to recruit a sufficient number of subjects,
we may be required to repeat clinical trials, which would delay the regulatory approval process.

Our CROs will not be our employees, and we will not control whether or not they devote sufficient time and resources to our future clinical and
nonclinical  programs.  These  CROs may  also  have  relationships  with  other  commercial  entities,  including  our  competitors,  for  whom  they  may  also  be
conducting  clinical  trials,  or  other  drug  development  activities  which  could  harm  our  competitive  position.  We  face  the  risk  of potential  unauthorized
disclosure or misappropriation of our intellectual property by CROs, which may reduce our trade secret protection and allow our potential competitors to
access  and  exploit  our  proprietary  technology.  If  our  CROs  do  not successfully  carry  out  their  contractual  duties  or  obligations,  fail  to  meet  expected
deadlines, or if the quality or accuracy of the clinical data they obtain is compromised due to the failure to adhere to our clinical protocols or regulatory
requirements or for any other reasons, our clinical trials may be extended, delayed or terminated, and we may not be able to obtain regulatory approval
for,  or  successfully  commercialize  PDS0101.  As  a  result,  our  financial  results  and  the commercial  prospects  for  PDS0101  would  be  harmed,  our  costs
could increase, and our ability to generate revenues could be delayed.

If our relationship with these CROs terminate, we may not be able to enter into arrangements with alternative CROs or do so on commercially
reasonable terms. Switching or adding additional CROs involves substantial cost and requires management time and focus. In addition, there is a natural
transition  period  when  a  new  CRO  commences  work.  As  a  result,  delays  occur,  which  can  materially  impact  our  ability  to  meet  our desired  clinical
development  timelines.  Though  we  intend  to  carefully  manage  our  relationships  with  our  CROs,  there  can  be  no  assurance  that  we  will  not  encounter
challenges or delays in the future or that these delays or challenges will not have an adverse impact on our business, financial condition and prospects.

If we are unable to establish or manage strategic collaborations in the future, our revenue and drug development may be limited.

Our strategy may include potential reliance upon strategic collaborations for marketing and commercialization of PDS0101 and other Versamune
and Infectimune Products. We also rely on strategic collaborations for research, development, marketing and commercialization for PDS0101 and other
Versamune Products. We have also been heavily reliant upon third party outsourcing for our clinical trials execution and production of  drug supplies for
use in clinical trials.

Establishing  strategic  collaborations  is  difficult  and  time-consuming.  Our  discussions  with  potential  collaborators  may  not  lead  to  the
establishment  of  collaborations  on favorable  terms,  if  at  all.  We  face  significant  competition  in  seeking  appropriate  collaborators.  Whether  we  reach  a
definitive agreement for a 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 clinical trials, the likelihood of approval by the FDA or similar regulatory authorities outside the United States, the potential market for PDS0101
and  other  Versamune  Products,  the  costs  and  complexities  of  manufacturing  and  delivering  PDS0101  and  other  Versamune  Products  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
immunotherapies for similar indications that may be available to collaborate on and whether such a collaboration could be more attractive than the one
with us for PDS0101 and other Versamune Products.

Our  current  collaborations,  as  well  as  any  future  new  collaborations,  may  never  result  in  the  successful  development  or  commercialization  of
PDS0101 and other Versamune and Infectimune Products or the generation of sales revenue. To the extent that we have entered or will enter into co-
promotion or other collaborative arrangements, PDS0101 and other Versamune Products revenues are likely to be lower than if we directly marketed and
sold any products that we develop.

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Management of our relationships with our collaborators will require:

●

●

●

●

significant time and effort from our management team;

financial funding to support said collaboration;

coordination of our research and development programs with the research and development priorities of our collaborators; and

effective allocation of our resources to multiple projects.

If we continue to enter into research and development collaborations, our success will in part depend on the performance of our collaborators. We
will not directly control the amount or timing of resources devoted by our collaborators to activities related to PDS0101 and other Versamune Products.
Our collaborators may not commit sufficient resources to our research and development programs or the commercialization, marketing or distribution of
PDS0101 and other Versamune Products. If any collaborator fails to commit sufficient resources, our preclinical or clinical development programs related
to  this  collaboration  could  be  delayed  or  terminated.  Also,  our collaborators  may  pursue  existing  or  other  development-stage  products  or  alternative
technologies in preference to those being developed in collaboration with us. If we fail to make required milestone or royalty payments to our collaborators
or  to observe  other  obligations  in  our  agreements  with  them,  our  collaborators  may  have  the  right  to  terminate  those  agreements.  Additionally,  our
collaborators  may  seek  to  renegotiate  agreements  we  have  entered  into,  or  may  disagree  with  us  about  the terms  and  implementation  of  these
agreements.  If  collaborators  disagree  with  us  about  the  terms  or  implementation  of  our  agreements,  we  may  face  legal  claims  that  may  involve
considerable expense and could negatively affect our financial results.

The failure of third parties to meet their contractual, regulatory, and other obligations could adversely affect our business.

We rely on suppliers, vendors, outsourcing partners, consultants, alliance partners and other third parties to research, develop, manufacture and

commercialize our products and manage certain parts of our business. Using these third parties poses a number of risks, such as:

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they may not perform to our standards or legal requirements;

they may not produce reliable results;

they may not perform in a timely manner;

they may not maintain confidentiality of our proprietary information;

disputes may arise with respect to ownership of rights to technology developed with our partners, and those disputes may be resolved against
us; and

disagreements could cause delays in, or termination of, the research, development or commercialization of our products or result in litigation
or arbitration.

Moreover, some third parties are located in markets subject to political and social risk, corruption, infrastructure problems and natural disasters, in
addition to country-specific privacy and data security risk given current legal and regulatory environments. Failure of third parties to meet their contractual,
regulatory, legal and other obligations may materially affect our business.

Our  business  could  be  adversely  affected  by  the  effects  of  health  epidemics,  pandemics,  or  outbreaks  of  infectious  diseases,  including  the
recent COVID-19 pandemic, in regions where we or third parties on which we rely have significant manufacturing facilities, concentrations of
clinical trial sites or other business operations. The COVID-19 pandemic could materially affect our operations, including at our headquarters
in New Jersey, and at our clinical trial sites, as well as the business or operations of our manufacturers, CROs or other third parties with whom
we conduct business.

Our  business  could  be  adversely  affected  by  health  epidemics  in  regions  where  we  have  concentrations  of  clinical  trial  sites  or  other  business

operations and could cause significant disruption in the operations of third-party manufacturers and CROs upon whom we rely.

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For  example,  in  December  2019,  a  novel  strain  of  coronavirus,  COVID-19,  was  identified  in  Wuhan,  China.  This  virus  spread  globally  and  in
March 2020, the World Health Organization declared COVID-19 a pandemic. The COVID-19 pandemic negatively impacted the global economy, disrupted
global supply chains and created significant volatility and disruption of financial markets. In response to the COVID-19 outbreak, “shelter in place” orders
and  other  public  health  guidance  measures  were  implemented  across  much  of  the  United  States,  Europe  and  Asia,  including  in  the  locations  of  our
offices, clinical trial sites, key vendors and partners. Our clinical development program timelines were negatively affected by COVID-19, as evidenced by
the delay in the initiation of our planned Phase 2 trial of PDS0101 in combination with KEYTRUDA® in first-line treatment of recurrent/metastatic head and
neck cancer and initiation of the Phase 2 clinical trial at The MD Anderson Cancer Center in combination with CRT. Even though both of these studies
have since  been  initiated  despite  the  pandemic  challenges,  the  COVID-19  pandemic  impacted  the  pace  of  enrollment  in  clinical  trials  and  we  may  be
affected by similar delays as patients may avoid or may not be able to travel to healthcare facilities and physicians’ offices. Such facilities and offices have
been  and  may  continue  to  be  required  to  focus  limited  resources  on  non-clinical  trial  matters,  including  treatment  of  COVID-19  patients,  thereby
decreasing availability, in whole or in part, for clinical trial services. Further, due to “shelter in place” orders and other public health guidance measures,
we implemented a work-from-home policy for all staff members excluding those necessary to maintain minimum basic operations. Our increased reliance
on personnel working from home may negatively impact productivity, or disrupt, delay or otherwise adversely impact our business. In addition, the COVID-
19 pandemic has affected and may continue to affect the operations of the FDA and other health authorities, which could result in delays of reviews and
approvals. For example, during the course of the pandemic the FDA has at points delayed both domestic and foreign inspections.

As a result of the COVID-19 outbreak, or similar pandemics, and related “shelter in place” orders and other public health guidance measures, we
have  and  may  in  the  future experience  disruptions  that  materially  and  adversely  impact  our  clinical  trials,  business,  financial  condition  and  results  of
operations. Potential disruptions include but are not limited to:

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delays or difficulties in enrolling patients in our clinical trials;

delays or difficulties in initiating or expanding clinical trials, including delays or difficulties with clinical site initiation and recruiting clinical site
investigators and clinical site staff;

increased  rates  of  patients  withdrawing  from  our  clinical  trials  following  enrollment  as  a  result  of  contracting  COVID-19  or  other  health
conditions or being forced to quarantine;

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

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

interruption or delays in the operations of the FDA or other regulatory authorities, which may impact review and approval timelines;

delays or disruptions in preclinical experiments and investigational new drug application-enabling studies due to restrictions of on-site staff
and unforeseen circumstances at contract research organizations and vendors;

interruption  of,  or  delays  in  receiving,  supplies  of  our  product  candidates  from  our  contract  manufacturing  organizations  due  to  staffing
shortages, production slowdowns or stoppages and disruptions in delivery systems;

limitations on our ability to recruit and hire key personnel due to our inability to meet with candidates because of travel restrictions and “shelter
in place” orders;

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

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interruption or delays to our sourced discovery and clinical activities.

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Further,  on  March  25,  2020,  the  FDA  issued  Guidance  on  Conduct  of  Clinical  Trials  of  Medical  Products  during  the  COVID-19  pandemic  for
Industry,  Investigators,  and  Institutional  Review  Boards  to  assist  sponsors  in  assuring  the  safety  of  trial  participants,  maintaining  compliance  with  good
clinical  practices,  and  minimizing  risks  to  trial  integrity  during  the  COVID-19  pandemic,  or  the  COVID-19  Guidelines.  This  Guidance  was  updated  on
August  30,  2021  and  is  intended  to  remain  in  effect  only  for  the  duration  of  the  Public  Health  Emergency  (PHE)  related  to  COVID-19  declared  by  the
Department  of  Health  and  Human  Services  on  January  31,  2020  and  these guidelines  are  continuing.  We  have  implemented  several  procedures  in
accordance with the COVID-19 Guidelines to address patient safety and clinical trial conduct during the COVID-19 pandemic, including remote monitoring
of patients through telemedical visits, remote monitoring of sites by our clinical trial monitors, remote data entry, and follow-up visits at sites other than the
site where the patient was initially treated. Our implementation of the COVID-19 Guidelines and potential disruptions to patient follow up, site monitoring
or the timely completion of our trials may have a negative effect on our ability to complete trials and associated regulatory filings.

While the potential economic impact brought by, and the duration of, the COVID-19 pandemic is difficult to assess or predict, the impact of the
COVID-19 pandemic on the global financial markets has reduced and may continue to reduce our ability to access capital, which could negatively impact
our short-term and long-term liquidity.

We do not yet know the full extent of potential delays or impacts on our business, financing or clinical trial activities or on healthcare systems or
the  global  economy  as  a whole.  However,  these  effects  have  had  and  may  continue  to  have  a  material  impact  on  our  liquidity,  capital  resources,
operations and business and those of the third parties on which we rely and a recession or market correction resulting from the spread of COVID-19 could
materially  affect  our  business  and  the  value  of  our  common  stock.  In  addition,  the  trading  prices  for  our  common  stock  and  other  biopharmaceutical
companies have been highly volatile as a result of the COVID-19 pandemic. We will continue to monitor the COVID-19 situation closely.

Risks Related to Our Intellectual Property

If we are unable to obtain and maintain patent protection for our Versamune platform, PDS0101, or other Versamune-based Products or if the
scope of the patent protection obtained is not sufficiently broad, we may not be able to compete effectively in our markets.

We  rely  upon  a  combination  of  patents,  trade  secret  protection  and  confidentiality  agreements  to  protect  the  intellectual  property  related  to
Versamune. Our success depends in large part on our ability to obtain and maintain patent protection in the United States and other countries. We seek to
protect our proprietary position by filing patent applications in the United States and abroad related to  Versamune and Infectimune-based products. The
patent prosecution process is expensive and time-consuming, and we may not be able to file and prosecute all necessary or desirable patent applications
at a reasonable cost or in a timely manner.

It  is  also  possible  that  we  will  fail  to  identify  patentable  aspects  of  our  research  and  development  output  before  it  is  too  late  to  obtain  patent
protection.  The  patent applications that we own or license may fail to result in issued patents with claims that cover Versamune and Infectimune-based
products or applications in the United States or in other countries. There is no assurance that all potentially relevant prior art relating, which can invalidate
a  patent  or  prevent  a  patent  from  issuing  from  a  pending  patent  application  is  known  to  us.  Even  if  patents  do  successfully  issue,  third  parties  may
challenge  their  validity,  enforceability  or  scope,  which may  result  in  such  patents  being  narrowed,  invalidated,  or  held  unenforceable.  Any  successful
challenge to these patents or any other patents owned by or licensed to us could deprive us of rights necessary for the successful commercialization of
PDS0101 and other Versamune and Infectimune-based products that we may develop. Further, if we encounter delays in regulatory approvals, the period
of  time  during  which  we  could  exclusively  market  PDS0101  and  other  Versamune  and  Infectimune-based products  under  patent  protection  could  be
reduced.

The patent position of biotechnology and pharmaceutical companies generally is highly uncertain, involves complex legal and factual questions
and has in recent years been the subject of much litigation. In addition, the laws of foreign countries may not protect our rights to the same extent as the
laws of the United States. For example, European patent law restricts the patentability of methods of treatment of the human body more than U.S. law
does.  Publications  of  discoveries  in  scientific  literature  often  lag  behind  the  actual  discoveries,  and  patent  applications  in  the  United  States  and  other
jurisdictions are typically not published until 18 months after filing, or in some cases not at all. Therefore, we cannot know with certainty whether we were
the  first  to  make  the  inventions  claimed  in  our  owned  or  licensed  patents  or  pending  patent  applications,  or  that  we  were  the  first  to  file  for  patent
protection of such inventions. As a result, the issuance, scope, validity, enforceability and commercial value of our patent rights are highly uncertain. Our
pending  and  future  patent  applications  may  not  result  in  patents  being  issued  which protect  PDS0101  or  other  Versamune  and  Infectimune-based
products, in whole or in part, or which effectively prevent others from commercializing competitive technologies and immunotherapies. Changes in either
the patent laws or interpretation of the patent laws in the United States and other countries may diminish the value of our patents or narrow the scope of
our patent protection.  Recent Russian Federal Law, No. 46-FZ of March 8, 2022, allows the Russian Government to designate goods for which IP rights
are exempted and this rule applies to all IP rights, including trademarks and this rule may affect our IP in the Russian Federation.  There is no guidance
on how broadly this rule will be applied, though the rule appears to be limited only to the year 2022.

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Moreover,  we  may  be  subject  to  a  third-party  pre-issuance  submission  of  prior  art  to  the  U.S.  Patent  Office,  or  become  involved  in  derivation,
reexamination,  inter  parties review,  post-grant  review  or  interference  proceedings  challenging  its  patent  rights  or  the  patent  rights  of  others.  In  other
countries,  we  may  be  subject  to  or  become  involved  in  opposition  proceedings  challenging  our  patent  rights  or  the  patent rights  of  others.  An  adverse
determination in any such submission or proceeding could reduce the scope of, or invalidate, our patent rights, allow third parties to commercialize our
technology or immunotherapies and compete directly with us, without payment to us, or result in our inability to manufacture or commercialize PDS0101
without  infringing  third-  party  patent  rights.  In  addition,  if  the  breadth  or  strength  of  protection  provided  by  our  patents  and  patent  applications  is
threatened, it could dissuade companies from collaborating with us to license, develop or commercialize PDS0101 and other Versamune and Infectimune-
based products.

The issuance of a patent is not conclusive as to our inventorship, scope, validity or enforceability, and our owned and licensed patents may be
challenged in the courts or patent offices in the United States and abroad. Such challenges may result in patent claims being narrowed, invalidated or held
unenforceable,  in  whole  or  in  part,  which  could  limit  our  ability  to  stop  others  from  using  or  commercializing  similar or  identical  technology  and
immunotherapies, or limit the duration of the patent protection of our technology and immunotherapies. Moreover, patents have a limited lifespan. In the
United States and other countries, the natural expiration of a patent is generally 20 years after it is filed. Various extensions may be available; however,
the life of a patent, and the protection it affords, is limited. Without patent protection for PDS0101 and other Versamune and Infectimune-based products,
we may be open to competition from generic versions of PDS0101 or other similar products using our technology. Given the amount of time required for
the development, testing and regulatory review of new immunotherapy candidates, patents protecting such candidates might expire before or shortly after
such candidates are commercialized. As a result, our owned and licensed patent portfolio may not provide us with sufficient rights to exclude others from
commercializing immunotherapies similar or identical to ours.

We  may  be  involved  in  lawsuits  to  protect  or  enforce  our  patents,  the  patents  of  our  licensors  or  our  other  intellectual  property  rights,  or
defend our products and methods against the property rights of others, which could be expensive, time consuming and unsuccessful.

Competitors  may  infringe  or  otherwise  violate  our  patents,  the  patents  of  our  licensors  or  our  other  intellectual  property  rights.  To  counter
infringement  or  unauthorized  use, we may be required to file legal claims, which can be expensive and time-consuming. In addition, in an infringement
proceeding, a court may decide that a patent of ours or our licensors is not valid or is unenforceable, or may refuse to stop the other party from using the
technology at issue on the grounds that such patents do not cover the technology in question. An adverse result in any litigation or defense proceedings
could put one or more of our patents at risk of being invalidated or interpreted narrowly and could put our patent applications at risk of not issuing. The
initiation of a claim against a third-party may also cause the third-party to bring counter claims against us, such as claims asserting that our patents are
invalid  or  unenforceable.  In  patent  litigation  in  the  United  States,  defendant  counterclaims  alleging  invalidity  or  unenforceability  are  commonplace.
Grounds for a validity challenge could be an alleged failure to meet any of several  statutory requirements,  including  lack  of  novelty,  obviousness,  non-
enablement or lack of statutory subject matter. Grounds for an unenforceability assertion could be an allegation that someone connected with prosecution
of the patent withheld relevant material information from the USPTO, or made a materially misleading statement, during prosecution. Third parties may
also raise similar validity claims before the USPTO in post-grant proceedings such as inter partes review, or post-grant review,  or oppositions or similar
proceedings outside the United States, in parallel with litigation or even outside the context of litigation. The outcome following legal assertions of invalidity
and  unenforceability  is  unpredictable.  We  cannot  be  certain that  there  is  no  invalidating  prior  art,  of  which  we  and  the  patent  examiner  were  unaware
during prosecution. For the patents and patent applications that we have licensed, we may have limited or no right to participate in the defense of any
licensed patents against challenge by a third-party. If a defendant were to prevail on a legal assertion of invalidity or unenforceability, we would lose at
least  part,  and  perhaps  all,  of  any  future  patent  protection  on  PDS0101  and  other  Versamune and  Infectimune-based  products.  Such  a  loss  of  patent
protection could harm our business.

We may also face claims that our products infringe patents that our competitors hold. Claims for alleged infringement and any resulting lawsuit, if
successful,  could  subject  us to  significant  liability  for  damages  and  invalidations  of  our  proprietary  rights.  Any  such  lawsuit,  regardless  of  our  success,
would  likely  be  time  consuming  and  expensive  to  resolve  and  would  divert  management  time  and  attention.  Any  potential intellectual  property  litigation
could also force us to do one or more of the following: (a) stop selling our products; (b) obtain a license(s), from the owner of any asserted intellectual
property, to sell or use the relevant technology, which  license may not be available on reasonable terms, or at all; or (c) redesign our products to avoid
using the relevant technology.

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. Our business could be harmed if in litigation the prevailing party does not offer us a
license on commercially reasonable terms. Any litigation or other proceedings to enforce our intellectual property rights may fail, and even if successful,
may result in substantial costs and distract our management and other employees.

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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 an
adverse effect on the price of our common stock.

Changes in patent law in the United States and other jurisdictions could diminish the value of patents in general, thereby impairing our ability
to protect our products.

As is the case with other biotechnology companies, our success is heavily dependent on intellectual property, particularly patents. Obtaining and
enforcing  patents  in  the biotechnology industry involves both technological and legal complexity, and is therefore costly, time-consuming and inherently
uncertain. Patent reform legislation in the United States and in other jurisdictions could increase those uncertainties and costs.

The United States has enacted and implemented wide-ranging patent reform legislation. The United States Supreme Court has ruled on several
patent cases in recent years, either narrowing the scope of patent protection available in certain circumstances or weakening the rights of patent owners
in certain situations. In addition to increasing uncertainty with regard to our ability to obtain patents in the future, this combination of events has created
uncertainty with respect to the value of patents, once obtained. Depending on actions 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 patents that we
have licensed or that we might obtain in the future.

We may not be able to protect our intellectual property rights throughout the world, which could impair our business.

Filing,  prosecuting  and  defending  patents  covering  Versamune  and  Infectimune-based  products  throughout  the  world  would  be  prohibitively
expensive.  Competitors  may  use  our technologies  in  jurisdictions  where  we  have  not  obtained  patent  protection  to  develop  their  own  immunotherapies
and, further, may export otherwise infringing immunotherapies to territories where we may obtain patent protection, but where patent enforcement is not
as strong as that in the United States. These immunotherapies may compete with PDS0101 in jurisdictions where we do not have any issued or licensed
patents and any future patent claims or other intellectual property rights may not be effective or sufficient to prevent them from so competing.

Many countries, including European Union countries, India, Japan and China, have compulsory licensing laws under which a patent owner may
be compelled under specified circumstances to grant licenses to third parties. In those countries, we may have limited remedies if patents are infringed or
if  we  are  compelled  to  grant  a  license  to  a  third  party,  which  could  materially  diminish  the  value  of  those  patents.  This could  limit  our  ability  to  pursue
strategic alternatives, including identifying and consummating transactions with potential third-party partners, to further develop, obtain marketing approval
for  and/or  commercialize  our  drug  candidates,  and consequently  our  potential  revenue  opportunities.  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.

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

We  seek  to  protect  our  proprietary  technology  in  part  by  entering  into  confidentiality  agreements  with  third  parties  and,  if  applicable,  material
transfer  agreements, consulting  agreements  or  other  similar  agreements  with  our  advisors,  employees,  third-party  contractors  and  consultants  prior  to
beginning research or disclosing proprietary information. These agreements typically limit the rights of the third parties to use or disclose our confidential
information, including our trade secrets. Despite the contractual provisions employed when working with third parties, the need to share trade secrets and
other  confidential  information  increases  the  risk that  such  trade  secrets  become  known  by  our  competitors,  are  inadvertently  incorporated  into  the
technology of others, or are disclosed or used in violation of these agreements. Given that our proprietary position is based, in part, on our know-how and
trade secrets, a competitor’s discovery of our trade secrets or other unauthorized use or disclosure would impair our competitive position and may have an
adverse effect on our business and results of operations.

In  addition,  these  agreements  typically  restrict  the  ability  of  our  advisors,  employees,  third-party  contractors  and  consultants  to  publish  data
potentially  relating  to  our trade  secrets,  although  our  agreements  may  contain  certain  limited  publication  rights.  Despite  our  efforts  to  protect  our  trade
secrets,  our  competitors  may  discover  our  trade  secrets,  either  through  breach  of  our  agreements  with  third  parties, independent  development  or
publication of information by any of our third-party collaborators. A competitor’s discovery of our trade secrets would impair our competitive position and
have an adverse impact on our business.

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General Market Risk Factors

Our stock price is expected to be volatile, and the market price of our common stock may drop in the future.

The market price of our common stock may be subject to significant fluctuations in the future. Market prices for securities of early-stage pharmaceutical,
biotechnology and other life sciences companies have historically been particularly volatile. Some of the factors that may cause the market price of our
common stock to fluctuate include:

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the ability of us and our partners to develop product candidates and conduct clinical trials that demonstrate such product candidates are safe
and effective;

the ability of us or our partners to obtain regulatory approvals for product candidates, and delays or failures to obtain such approvals;

failure of any of our product candidates to demonstrate safety and efficacy, receive regulatory approval and achieve commercial success;

failure by us to maintain our existing third-party license, manufacturing and supply agreements;

impact of COVID-19 and its variants on business operations and clinical trials;

failure by us or our licensors to prosecute, maintain, or enforce our intellectual property rights;

changes in laws or regulations applicable to our product candidates;

any inability to obtain adequate supply of product candidates or the inability to do so at acceptable prices;

adverse regulatory authority decisions;

introduction of new or competing products by our competitors;

failure to meet or exceed financial and development projections we may provide to the public;

the perception of the pharmaceutical industry by the public, legislatures, regulators and the investment community;

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

disputes or other developments relating to proprietary rights, including patents, litigation matters, and our ability to obtain intellectual property
protection for our technologies;

additions or departures of key personnel;

significant lawsuits, including intellectual property or stockholder litigation;

if securities or industry analysts do not publish research or reports about us, or if they issue an adverse or misleading opinions regarding our
business and stock;

if large short positions are taken in our stock and or negative reports are provided, whether they are based in fact or otherwise;

changes in the market valuations of similar companies;

general market or macroeconomic conditions;

sales of our common stock by us or our stockholders in the future;

trading volume of our common stock;

adverse publicity relating to our markets generally, including with respect to other products and potential products in such markets;

changes in the structure of health care payment systems; and

period-to-period fluctuations in our financial results.

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Moreover, the stock markets in general have experienced substantial volatility that has often been unrelated to the operating performance of

individual companies. These broad market fluctuations may also adversely affect the trading price of our common stock.

In the past, following periods of volatility in the market price of a company’s securities, stockholders have often instituted class action securities
litigation  against  those companies.  Such  litigation,  if  instituted,  could  result  in  substantial  costs  and  diversion  of  management  attention  and  resources,
which could significantly harm our profitability and reputation.

We are required to meet the Nasdaq Capital Market’s continued listing requirements and other Nasdaq rules, and if we fail to meet such rules
and requirements,  we may be subject to delisting. Delisting could negatively affect the price of our common stock, which could make it more
difficult for us to sell securities in a future financing or for you to sell our common stock.

We  are  required  to  meet  the  continued  listing  requirements  of  the  Nasdaq  Capital  Market  and  other  Nasdaq  rules,  including  those  regarding
director  independence  and  independent committee  requirements,  minimum  stockholders’  equity,  minimum  share  price  and  certain  other  corporate
governance requirements. In particular, we are required to maintain a minimum bid price for our listed common stock of $1.00 per share. If we do not meet
these continued listing requirements, our common stock could be delisted. Delisting from the Nasdaq Capital Market would cause us to pursue eligibility
for  trading  of  these  securities  on  other  markets  or  exchanges,  including  the  OTC  BB  or  QB  markets,  or  on  the  OTC  “pink  sheets.”  In  such  case,  our
stockholders’ ability to trade, or obtain quotations of the market value of our common stock would be severely limited because of lower trading volumes
and  transaction  delays.  These  factors could  contribute  to  lower  prices  and  larger  spreads  in  the  bid  and  ask  prices  of  our  securities.  There  can  be  no
assurance  that  our  securities,  if  delisted  from  the  Nasdaq  Capital  Market  in  the  future,  would  be  listed  on  a  national  securities exchange,  a  national
quotation service, the OTC markets or the pink sheets. Delisting from the Nasdaq Capital Market, or even the issuance of a notice of potential delisting,
would also result in negative publicity, make it more difficult for us to raise additional capital, cause us to lose eligibility to register the sale or resale of our
shares on Form S-3 and the automatic exemption from registration under state securities laws for exchange-listed securities, adversely affect the market
liquidity of our securities, decrease securities analysts’ coverage of us or diminish investor, supplier and employee confidence.

We do not anticipate that we will pay any cash dividends in the foreseeable future.

We currently expect to retain our future earnings, if any, to fund the development and growth of our business. As a result, capital appreciation, if

any, of our company will be the sole source of our stockholders’ gain, if any, for the foreseeable future.

Future sales of shares by existing stockholders could cause our stock price to decline.

If our existing stockholders sell, or indicate an intention to sell, substantial amounts of our common stock in the public market after certain legal
restrictions on resale lapse, the trading price of our common stock could decline. As of December 31, 2021, we had 28,448,612 shares of common stock
outstanding.  Approximately  27,113,462  of  such  shares  are  freely  tradable,  without  restriction,  in  the  public  market. Approximately  1,335,150  of  such
shares of common stock are held by directors, executive officers and other affiliates and will be subject to volume limitations under Rule 144 under the
Securities Act and various vesting agreements.

Our  principal  stockholders  and  management  own  a  significant  percentage  of  our  stock  and  will  be  able  to  exert  significant  control  over
matters subject to stockholder approval.

Our  executive  officers,  directors,  and  5%  stockholders  and  their  affiliates  beneficially  owned  an  aggregate  of  approximately  4.7%  of  the
outstanding shares of our common stock as of December 31, 2021. Accordingly, these executive officers, directors and their affiliates, acting as a group,
may  have  substantial  influence  over  the  outcome  of  corporate  actions  requiring  stockholder  approval,  including  the  election  of directors,  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 our company, even if such a change of control would benefit our other stockholders. This concentration of ownership could delay or
prevent any acquisition of our company on terms that other stockholders may desire, and may adversely affect the market price of our common stock.

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Because  the  Merger  resulted  in  an  ownership  change  under  Section  382  of  the  Code  for  Edge,  pre-merger  U.S.  net  operating  loss
carryforwards and certain other tax attributes will be subject to limitations.

On March 15, 2019, we, then operating as Edge Therapeutics, Inc., or Edge, completed a reverse merger with privately held PDS Biotechnology
Corporation,  or  Private  PDS,  pursuant  to  and  in  accordance  with  the  terms  of  the  Agreement  and  Plan  of  Merger  and  Reorganization,  dated  as  of
November 23, 2018, as amended on January 24, 2019, by and among us, Echos Merger Sub, a wholly-owned subsidiary of Edge, or Merger Sub, and
Private PDS, whereby Private PDS merged with and into Merger Sub, with Private PDS surviving as our wholly-owned subsidiary, which we refer to as the
Merger. In connection with and immediately following completion of the Merger, we changed our corporate name from Edge Therapeutics, Inc. to PDS
Biotechnology Corporation, and Private PDS changed its name to PDS Operating Corporation.

As of December 31, 2018, prior to completion of the Merger, Edge had federal and state net operating loss carryforwards, or NOLs, of $128.6
million and $27.1 million, respectively, due to prior period losses. If a corporation undergoes an “ownership change” within the meaning of Section 382 of
the Code, the corporation’s U.S. net operating loss carryforwards and certain other tax attributes arising from before the ownership change are subject to
limitations  on  use  after  the  ownership  change.  In  general,  an  ownership  change  occurs  if  there  is  a  cumulative  change  in  the  corporation’s  equity
ownership by certain stockholders that exceeds fifty percentage points over a rolling three-year period. Similar rules may apply under state and foreign tax
laws. We believe that Edge may have already undergone one or more ownership changes prior to the Merger. However, the Merger also resulted in an
ownership change for Edge and, accordingly, Edge’s U.S. net operating loss carryforwards and certain other tax attributes available to us are subject to
limitations on their use.

Our effective tax rate may increase in the future, including as a result of tax legislation changes, which may have a material adverse effect on
our business, financial condition and results of operations.

Our effective tax rate may be impacted by changes in or interpretations of tax laws in the United States or in any given jurisdiction in which we
operate, utilization of or limitations on our ability to utilize any tax credit carry-forwards, changes in geographical allocation of revenue and expense and
changes in management’s assessment of matters such as our ability to realize the value of deferred tax assets.

In particular, the U.S. government may enact significant changes to the taxation of business entities including, among others, an increase in the
corporate income tax rate, the imposition of minimum taxes or surtaxes on certain types of income, significant changes to the taxation of income derived
from international operations, and an addition of further limitations on the deductibility of business interest. While certain draft legislation has been publicly
released and is under development in Congress at this time, the likelihood of these changes being enacted or implemented is unclear.

Our effective tax rate could also increase due to several factors, including:

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changes in tax rates, tax treaties, and regulations or the interpretation of them;

changes to our assessment about our ability to realize deferred tax assets that are based on estimates of our future results, the prudence and
feasibility of possible tax planning strategies, and the economic and political environments in which we do business;

the outcome of any future tax audits, examinations, or administrative appeals; and

the effects of any acquisitions;

There  can  be  no  assurance  that  our  effective  income  tax  rate  will  not  change  in  future  periods.  Accordingly,  if  our  effective  tax  rate  were  to

increase, it may have a material adverse effect on our business, financial condition and results of operations.

Anti-takeover  provisions  under  Delaware  law  could  make  an  acquisition  more  difficult  and  may  prevent  attempts  by  our  stockholders  to
replace or remove our current or future management.

Because we are incorporated in Delaware, our company is governed by the provisions of Section 203 of the DGCL, which prohibits stockholders
owning  in  excess  of  15%  of  our voting  stock  from  merging  or  combining  with  us.  Although  we  believe  these  provisions  collectively  will  provide  for  an
opportunity  to  receive  higher  bids  by  requiring  potential  acquirors  to  negotiate  with  our  board  of  directors,  they  would  apply even  if  the  offer  may  be
considered beneficial by some stockholders. In addition, these provisions may frustrate or prevent any attempts by our stockholders to replace or remove
then current management by making it more difficult for stockholders to replace members of the board of directors, which is responsible for appointing the
members of management.

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Our  eighth  amended  and  restated  certificate  of  incorporation,  as  amended,  provides  that,  unless  we  consent  to  the  selection  of  an  alternative
forum, the Court of Chancery of the State of Delaware is the sole and exclusive forum, to the fullest extent permitted by law, for: (a) any derivative action
or proceeding brought on our behalf; (b) any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officers or other employees
to us or our stockholders; (c) any action asserting a claim arising pursuant to the DGCL, our eighth amended and restated certificate of incorporation, as
amended, or our amended and restated bylaws; or (d) any action asserting a claim against us governed by the internal affairs doctrine. This choice  of
forum provision does not preclude or contract the scope of exclusive federal or concurrent jurisdiction for any actions brought under the Securities Act or
the Exchange Act. Accordingly, our exclusive forum provision will not relieve us of our duties to comply with the federal securities laws and the rules and
regulations thereunder, and our stockholders will not be deemed to have waived our compliance with these laws, rules and regulations.

Any person or entity purchasing or otherwise acquiring any interest in any of our securities shall be deemed to have notice of and consented to
these provisions. These exclusive-forum provisions may limit a stockholder’s ability to bring a claim in a judicial forum of its’ choosing for disputes with us
or our directors, officers or other employees, which may discourage lawsuits against us and our directors, officers and other employees.

If a court were to find the choice of forum provision contained in our eighth amended and restated certificate of incorporation, as amended, to be
inapplicable or unenforceable in an action, we may incur additional costs associated with resolving such action in other jurisdictions, which could harm our
business, results of operations, and financial condition. Even if we are successful in defending against these claims, litigation could result in substantial
costs and be a distraction to management and other employees.

Provisions in our amended and restated bylaws could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or
our directors, officers or employees.

Our amended and restated bylaws provide that, unless we consent in writing to the selection of an alternative forum, the federal district courts of the
U.S. shall be the exclusive forum for the resolution of any complaint asserting a cause of action under the Securities Act. This provision limits the ability of
our  stockholders  to  bring  claims  under  the  Securities  Act  in  any  court  other  than  the  U.S.  federal courts,  which  ultimately  may  disadvantage  our
stockholders  or  be  cost  prohibitive.  Notwithstanding  the  foregoing,  there  is  uncertainty  as  to  whether  a  court  (other  than  state  courts  in  the  State  of
Delaware, which have recently upheld the validity of such a provision) would enforce such a provision and whether investors can waive compliance with
the federal securities laws and the rules and regulations thereunder. Furthermore, the exclusive forum provision only applies to claims brought under the
Securities Act and does not apply to actions arising under the Exchange Act, which is already subject to federal courts as the exclusive forum.

If  a  court  were  to  find  these  provisions  of  our  amended  and  restated  bylaws  inapplicable  to,  or  unenforceable  in  respect  of,  one  or  more  of  the
specified  types  of  actions or  proceedings,  we  may  incur  additional  costs  associated  with  resolving  such  matters  in  other  jurisdictions,  which  could
adversely affect our business, results of operations and financial condition. Even if we are successful in defending against these claims, litigation could
result in substantial costs and be a distraction to management and other employees.

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ITEM 1B. Unresolved Staff Comments

None.

ITEM 2.

Properties

We  maintain  a  month-to-month  lease  for  our  research  facilities  at  the  Princeton  Innovation  Center  BioLabs  located  at  303A  College  Road  E,

Princeton, NJ 08540.

We  entered  into  a  temporary  month-to-month  lease  as  of  September  1,  2019  for  office  space  located  at  830  Morris  Turnpike,  Short  Hills,  NJ

07078 until we entered into a new lease for permanent office space. This lease was terminated on May 31, 2020.

On March 10, 2020, we entered into a sublease agreement, effective as of March 5, 2020, to occupy our corporate and executive office located at
25B Vreeland Road, Suite 300, Florham Park, NJ.  The sublease commenced on May 1, 2020 and continues for a term of approximately forty (40) months
with  an  option  to  renew  through  October  31,  2027.  On  March  17,  2020,  the  master  lessor  provided  its  consent  to  the  sublease  in accordance  with  the
terms of the sublease.

On July 8, 2019, we entered into a lease termination agreement for our office space located at 300 Connell Drive, Suite 4000, Berkeley Heights,
NJ 07922 effective August 31, 2019, or the Lease Termination Agreement. Pursuant to the Lease Termination Agreement, we were required to pay 50%
of the remaining lease payments of $665,802 over three installments on September 1, 2019, December 1, 2019, and March 1, 2020.

We believe our current facilities are suitable and adequate to meet our current needs.

ITEM 3.

Legal Proceedings

The  information  in  Note  11  to  the  Consolidated  Financial  Statements  contained  in  Part  IV,  Item  15  of  this  Annual  Report  on  Form  10-K  is
incorporated  herein  by  reference.  There are  no  matters  which  constitute  material  pending  legal  proceedings  to  which  we  are  a  party  other  than  those
incorporated into this item by reference from Note 11 to our Consolidated Financial Statements for the year ended December 31, 2021 contained in this
Annual Report on Form 10-K.

ITEM 4.

Mine Safety Disclosures

Not applicable.

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PART II

ITEM 5.

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

Market Information

Our common stock is listed on the Nasdaq Capital Market under the symbol “PDSB”.

Holders

As of March 25, 2022, there were 44 stockholders of record, which excludes stockholders whose shares were held in nominee or street name by

brokers.

Dividends

We have never declared or paid any cash dividends on our common stock and do not anticipate paying any cash dividends in the foreseeable
future. Any future determination to pay dividends will be at the discretion of our board of directors, subject to applicable laws, and will depend on a number
of factors, including our financial condition, results of operations, capital requirements, contractual restrictions, general business conditions, and any other
factors that our board may deem relevant.

Equity Compensation Plans

Information  regarding  our  equity  compensation  plans  is  incorporated  by  reference  from  the  information  in  our  Proxy  Statement  for our  2022
Annual Meeting of Stockholders, which we will file with the SEC within 120 days after the end of the fiscal year to which this Annual Report on Form 10-K
relates.

Issuer Purchases of Equity Securities

We did not purchase any of our registered equity securities during the period covered by this Annual Report.

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ITEM 7.

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

You should read the following discussion and analysis of our financial condition and results of operations together with our consolidated financial
statements  and  related  notes  appearing  elsewhere  in  this  Annual  Report.  In  addition  to  historical  information,  this  discussion  and  analysis  contains
forward-looking  statements  that  involve  risks,  uncertainties  and  assumptions.  Our  actual  results may  differ  materially  from  those  anticipated  in  these
forward-looking  statements  as  a  result  of  certain  factors.  We  discuss  factors  that  we  believe  could  cause  or  contribute  to  these  differences  below  and
elsewhere in this Annual Report, including those set forth under Item 1A. “Risk Factors” and under “Forward-Looking Statements” in this Annual Report.

Introduction to PDS Biotechnology Corporation

We are a clinical-stage immunotherapy company developing a growing pipeline of molecularly targeted immunotherapies designed to overcome
the limitations of current immunotherapy and vaccine technologies. We own proprietary T-cell activating platforms designed to train the immune system to
better attack and destroy disease; Versamune ®, for treatments in oncology and Infectimune™, for treatments in infectious disease. When paired with an
antigen, which is a disease-related protein that is recognizable by the immune system, Versamune and Infectimune have both been shown to induce, in
vivo, large quantities of high-quality, highly potent polyfunctional CD4+ helper and CD8+ killer T-cells, a specific sub-type of T-cell  that is more effective at
killing  infected  or  target  cells.  Infectimune  is  also  designed  to  promote  the  induction  of  disease-specific  neutralizing  antibodies.    Our  immuno-oncology
product  candidates  are  of  potential  interest  for  use  as  a component  of  combination  product  candidates  (for  example,  in  combination  with  other  leading
technologies  such  as  checkpoint  inhibitors)  to  provide  more  effective  treatments  across  a  range  of  advanced  and/or  refractory  cancers.  We  are  also
evaluating  our  immunotherapies  as  monotherapies  in  early-stage  disease.    We  are  developing  targeted  product  candidates  to  treat  several  cancers
including Human Papillomavirus (HPV)-associated cancers, melanoma, colorectal, lung, breast and prostate cancers. Our infectious disease candidates
are of potential interest as vaccines to prevent COVID-19 and universal influenza.

It is well documented that the most critical attribute of an effective cancer immunotherapy is the induction of high levels of active antigen-specific
CD8+ (killer) T-cells.  Priming adequate levels of active CD8+ T-cells in-vivo continues to be a major obstacle facing immunotherapy. PDS0101 in its first
human clinical trial provided data supporting the earlier promising preclinical study results and demonstrated the unique in-vivo induction of high levels of
active HPV-specific CD8+ T-cells in humans.

We  believe  that  the  Versamune  platform  has  the  potential  to  become  an  industry-leading  immuno-oncology  technology  and  is  currently  being
applied  to  the  development  of  a robust  pipeline  of  valuable  “new-generation,  multi-functional”  immunotherapies,  both  as  single  agents  and  as  part  of
combination therapies with other leading immuno-oncology technologies.

We believe that the key differentiating attributes of the Infectimune platform technology, are strong induction of CD8+ and CD4+ T-cells as well as
antibodies,  which  can  be leveraged  to  improve  treatment  and  preventive  options  in  several  infectious  disease  indications.    Specifically,  the  COVID-19
pandemic  has  provided  a  unique  opportunity  to  highlight  Infectimune’s  potentially  transformative  utility  in  the development  of  more  effective  and  longer
lasting protective vaccines.

PDS0101 in Combination with KEYTRUDA ® Clinical Trial:

In  November  2020,  our  VERSATILE-002  Phase  2  clinical  trial  evaluating  the  combination  of  PDS0101  (Versamune 

 plus  a  mixture  of  HPV16
antigens)  in  combination  with  Merck’s  anti-PD-1  therapy,  KEYTRUDA®  (pembrolizumab)  for  first-line  treatment  of  recurrent/ metastatic  HPV16-positive
head and neck cancer opened and is actively recruiting patients.   The clinical trial will evaluate the efficacy and safety of this therapeutic combination as
a first-line treatment in patients with recurrent or metastatic head and neck cancer and high-risk HPV16 infection.

In this sponsored trial, patients whose cancer has returned or spread following initial treatment, will take this combination of two immuno-therapy
drugs in lieu of chemotherapy. Enrolling patients with more functional immune systems earlier in disease recurrence that have not been compromised by
extensive chemotherapy may allow improved efficacy of the combination.  Patients in the trial will receive a total of 5 cycles of combination therapy in the
context of standard of care KEYTRUDA® therapy administered every three weeks until disease progression or intolerance to therapy.

The original trial design for this combination trial was restricted to patients naïve to checkpoint inhibitor (CPI) therapy.  PDS  amended the protocol
in May 2021 to expand this trial to include patients with advanced head and neck cancer who have failed multiple treatments, including CPI therapy (CPI
refractory patients), a treatment refractory population with extremely high unmet medical need.  The amended trial design is a Simon two stage design
that will evaluate objective response rate- or ORR – at six months following initiation of treatment in both the original CPI naïve arm and in the expansion
CPI  refractory arm.  Objective response is measured by radiographic tumor responses according to RECIST 1.1.   There will be a lead-in cohort of 12
patients for the entire trial to assess the safety of the combination.  In the CPI naïve arm of the trial, the first seventeen (17) patients will be evaluated for
efficacy  with  a  minimum  of  four  (4)  or  more  patients  with  documented  objective  response  required  to  progress  to  full  enrollment  of  this  arm.    In  the
expansion CPI refractory arm, the first twenty-one (21) patients will be evaluated for efficacy with a minimum of two (2) or more patients with documented
objective response required to progress to full enrollment of this arm.

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In the first quarter of 2022, at the Multidisciplinary Head and Neck Cancers Symposium, we announced the safety data for this trial in more detail,
which showed that PDS0101 in combination with KEYTRUDA® for the treatment of recurrent or metastatic head and neck cancer is likely safe and well
tolerated without evidence of enhanced or significant toxicity.

Also, in the first quarter of 2022, we announced we had met the preliminary efficacy milestone in the checkpoint inhibitor naïve arm and the arm
could  proceed  to  full enrollment  of  54  patients.  As  pre-specified  in  the  clinical  trial  design,  the  achievement  of  an  objective  response  as  measured  by
radiographic tumor responses according to RECIST 1.1 (tumor reduction of 30% or more) confirmed by two separate measurements among at least four
or more of the first 17 patients in the CPI naïve arm to progress to full enrollment.  The enrollment continues in the first stage of the CPI refractory arm.

PDS0101 in Combination with Bintrafusp alfa (M7824) and NHS-IL12 NCI-led Clinical Trial:

In  June  2020,  the  first  patient  was  dosed  under  a  PDS0101  Cooperative  Research  and  Development  Agreement,  which  we  refer  to  as  the
CRADA, in a National Cancer Institute, or NCI, led Phase 2 clinical trial evaluating PDS0101, in combination with two investigational immune-modulating
agents  Bintrafusp  alfa  (M7824),  a  bifunctional  “trap”  fusion  protein  targeting  TGF-β  and PD-L1,  and  NHS-IL12  (M9241),  a  tumor-targeting  immune-
cytokine. Both Bintrafusp alfa and NHS-IL12 are owned by and are being developed by Merck KGaA, Darmstadt, Germany.  The NCI-led trial is evaluating
the novel triple combination for the treatment of both CPI naïve and refractory patients with advanced HPV-associated cancers that have progressed or
returned after treatment. Almost all types of HPV-related cancers (anal, cervical, head and neck, vaginal and vulvar cancers) are represented among the
trial  subjects  to  date.    Objective  response  (tumor  reduction >  30%)  is  measured  by  radiographic  tumor  responses  according  to  RECIST  1.1.  The  NCI
recently achieved the intended enrollment objective of 30 patients in the CPI refractory arm of the trial.  The trial has enrolled 45 patients and enrollment in
the trial will continue until the total enrollment of 56 patients is achieved.

The trial was accepted for oral presentation at the 2021 meeting of the American Society of Clinical Oncology (ASCO) held June 4-8, 2021. On
May 20, 2021, we announced the abstract summarizing interim data of 14 patients from the trial. Objective responses were observed in 83% (5 of 6) of
HPV16-positive  checkpoint  inhibitor  naïve  patients  with  advanced  disease.  Objective responses  were  observed  in  63%  (5  of  8)  of  HPV16-positive
advanced cancer patients who had also failed checkpoint inhibitor therapy.

On June 7, 2021, updated interim data (Abstract 2501) was presented at ASCO by the trial’s Principal Investigator Dr. Julius Strauss. This data
included an update on the initial 14 patients with an additional four (4) subsequently recruited CPI refractory HPV16-positive patients whose data became
available  after  the  abstract  submission  as  well  as  an  additional  seven  (7) HPV16-negative  patients  (patients  whose  cancer  was  not  caused  by  HPV16
infection)  who  were  not  discussed  in  the  abstract.  Tumor  reduction  and  objective  response  was  seen  in  83%  (5/8)  of  CPI  naïve  patients  with  one  (1)
achieving a complete response. After a median of eight (8) months of follow-up, 100% (6/6) of these patients were alive, compared to the historical median
survival of 7-11 months. In the CPI refractory arm, tumor reduction was observed in 58% (7/12) patients. These 12 patients included the initial 8 patients
reported in the abstract where 5 of 8, or 63% had tumor reduction. Of the 4 additional patients in this updated data set, 2 patients already had ongoing
tumor reduction but had not yet met the criteria for objective response. Objective response was achieved in 42% (5/12) patients with one (1) achieving a
complete response in this refractory arm. The objective response rates reported in checkpoint refractory, advanced HPV-cancer patients are lower than
those naïve to checkpoint inhibitors, generally only 5-12%. Importantly, 83% (10/12) of all checkpoint inhibitor refractory patients were still alive at median
eight (8) months of follow-up; historic average median survival for this patient population is 3-4 months. Overall, tumor reduction occurred in 67% (12/18)
of the HPV16-positive patients, including both CPI naïve and CPI refractory patients. Of note, in the 7 HPV16-negative patients- those with an HPV type
other  than  HPV16  that  do  not express  the  molecular  target  of  PDS0101,  zero  (0)  of  seven  (7)  patients  experienced  tumor  reduction  or  an  objective
response, providing insight into the potential role of PDS0101 in the observed activity of the triple combination. These data suggest that HPV16-specific
CD8+  and  CD4+  T-cell  induction  by  PDS0101  as  demonstrated  in  preclinical  studies  and  phase  1  clinical  studies,  may  promote  tumor  reduction  and
enhanced clinical benefit of the triple combination.

Moreover,  PDS0101  did  not  appear  to  compound  the  toxicities  already  reported  to  be  induced  by  Bintrafusp  alfa  and  NHS-IL12.  This  is  an
important  consideration  for  combination oncology  treatment  regimens  where  a  key  goal  is  to  avoid  additional  or  excess  toxicity  associated  with  limited
anti-tumor activity. As would be expected with both PDS0101 and M9241 being delivered subcutaneously, injection site reactions were seen  in  20%  of
patients. No new or additional toxicities have been observed to date from the addition of PDS0101 to the combination of the other two immunotherapies.

In the first quarter of 2022, the NCI provided us with data that as of December 31, 2021, the median survival of all patients had increased to 12

months and on-going.

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PDS0101 in Combination with Chemo-Radiotherapy Clinical Trial (IMMUNOCERV):

In October 2020, a third PDS0101 phase 2 clinical trial was initiated with The University of Texas MD Anderson Cancer Center and is actively
recruiting patients.  This  clinical  trial  is  investigating  the  safety  and  preliminary  anti-tumor  efficacy  of  PDS0101  in  combination  with  standard-of-care
chemo-radiotherapy, or CRT, and their correlation with critical immunological biomarkers in patients  with locally advanced cervical cancer. The trial goals
include  evaluation  of  the  rate  of  regression  in  patients  with  a  primary  tumor  that  is  greater  than  or  equal  to  5cm  among  approximately  thirty-five  (35)
patients. The rate of complete metabolic response is measured by PET-CT at day 170 and the rate of > 90% tumor volume reduction evaluated by MRI at
30-40 days from the start of treatment. Preliminary data is expected from this trial in 2022. We believe that Versamune’s strong T-cell induction has the
potential to meaningfully enhance efficacy of the current standard of care CRT treatment in this indication.

PDS0101 as a Monotherapy and in Combination with  KEYTRUDA® in a Pre-Surgical Oropharynx Clinical Trial (Mayo Clinic):

In February 2022, a fourth phase 2 clinical trial was initiated with Mayo Clinic.     This study is currently open for enrollment.  This  investigator
initiated  clinical  trial  (MC200710),  for PDS0101  as  a  monotherapy  or  in  combination  with  KEYTRUDA ®,  in  patients  with  HPV  oropharynx  cancer
(HPV+OPSCC) at high risk for recurrence. The trial treatment will be administered before patients proceed to transoral robotic surgery with curative intent.
Treatment in this setting is referred to as neoadjuvant treatment. This  trial will explore wither PDS0101 with or without checkpoint inhibition may increase
HPV-specific anti-tumor responses, potentially resulting in tumor shrinkage, pathologic regression and decrease in circulating tumor DNA (ctDNA).

Other Versamune -Based Products in Development:

PDS0102 – Versamune + TARP antigens

The  TARP  antigen  is  over-expressed  in  acute  myelogenous  leukemia  (AML),  prostate  and  breast  cancers.  In  the  U.S.  450,000  patients  are
projected to be diagnosed with prostate or breast cancer this year and 19,900 patients are projected to be diagnosed with AML. One hundred percent of
adult  and  pediatric  AML  overexpress  the  TARP  tumor  antigen  while  approximately  90%  of  prostate  cancers  and  50% of  breast  cancers  overexpress
TARP, providing a potentially significant therapeutic opportunity to impact these diseases. In an early human clinical study, the National Cancer Institute
demonstrated that its proprietary TARP antigens (TARP mix)  were recognized by the immune system in prostate cancer patients with PSA biochemical
recurrence leading to a notable reduction in tumor growth rates. In preclinical studies, a dramatically enhanced TARP-specific CD8+ killer T-cell response
was observed when our designed TARP antigens were combined with Versamune (PDS0102). Preclinical development is ongoing. On November 5, 2021
PDS and NCI entered into a non-exclusive, worldwide Patent License Agreement to develop and commercialize a product including TARP antigens.  The
patent for the TARP antigens extends through 2034. This license agreement is an important step in the development of PDS0102. We are evaluating the
next steps in the clinical development of PDS0102 and are seeking nondilutive financings to move to human trials.

PDS0103 – Versamune + MUC1 antigens

In April 2020, the PDS-NCI CRADA was expanded beyond PDS0101 to include clinical and preclinical development of PDS0103.  PDS0103 is an
investigational immunotherapy  owned  by  PDS  and  designed  to  treat  cancers  associated  with  the  mucin-1,  or  MUC1,  oncogenic  protein.    PDS0103
combines Versamune with novel highly immunogenic agonist epitopes of MUC1 developed by the NCI and licensed by PDS.  MUC1 is highly expressed
in  multiple  solid  tumors  and  has  been  shown  to  be  associated  with  drug  resistance  and  poor  disease  prognosis  in  breast,  colorectal,  lung  and  ovarian
cancers,  for  which  PDS0103  is  being  developed.  In  preclinical  studies,  and similarly  to  PDS0101  and  PDS0102,  PDS0103  demonstrated  the  ability  to
generate powerful MUC1-specific CD8+ killer T-cells.  PDS0103 is currently in late preclinical development, and we requested a pre-IND meeting with the
FDA to align on a clinical development plan. In the first quarter of 2022, we held a pre-IND meeting with the FDA on PDS0103. We were satisfied with the
responses and believe we will submit our IND package and will start human trials at the end of 2022.

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PDS0104 – Versamune + TRP-2 and melanoma antigens

Rates of melanoma have been rising rapidly over the past few decades and approximately 96,480 new melanomas will be diagnosed this year
alone. More than 7,000 of these will prove fatal. PDS0104 combines Versamune with various melanoma antigens including the Tyrosinase-related protein
2 (TRP2) antigen which is highly expressed in melanoma. In preclinical B16 animal models of aggressive melanoma, PDS0104 has been shown to have
unique  and  significant  anti-tumor  activity  as  a  monotherapy  and  has  also  demonstrated  strong  anti-tumor  synergy  in  combination  with  checkpoint
inhibitors. As the first approval indications for checkpoint inhibitors occurred in melanoma, there is a growing unmet medical need to identify combination
regimens with potential activity in checkpoint inhibitor refractory patients with this disease. Preclinical development is ongoing.

Infectious Diseases

Our  primary  focus  remains  on  developing  our  oncology  products  and  progressing  the  clinical  trials  described  above.  However,  we  are  also
developing preventive  vaccines  to  address  several  infectious  diseases.  Based  on  the  key  characteristics  of  Versamune  we  are  progressing  preclinical
development  of  PDS0202,  a  universal  influenza  vaccine  candidate,  which  combines  Versamune  with  COBRA (Computationally  Optimized  Broadly
Reactive Antigen) antigens.  These COBRA antigens were designed by renowned influenza expert Dr. Ted Ross at the University of Georgia. PDS0202
leverages Versamune’s ability to induce the immune system to generate high levels of flu-specific neutralizing antibodies, CD4 helper and CD8 killer T-
cells, as well as long-acting memory T-cells to potentially provide broad and long-term protection against multiple influenza strains. PDS0202 preclinical
development is being supported by an agreement with the National Institute of Allergy and Infectious Diseases Collaborative Influenza Vaccine Innovation
Centers,  or  CIVIC  program.    We  have  completed  preclinical  formulation  and  we  have  entered into  an  agreement  to  license  COBRA  antigens  with  the
University of Georgia initially to progress into a human clinical trial.

PDS0203 is being designed with the goal to potentially provide long-term and broad protection against infection from COVID-19 and its potential
mutations, based on the understood potential of Versamune to prime the immune system to generate both antibodies for near term protection and T-cell
responses  for  immune  memory  and  long-term  protection  against  pathogens.  Farmacore  Biotechnology  has  licensed  Versamune  in Latin  America  to
develop  PDS0203  in  Brazil.    Farmacore  is  developing  and  manufacturing  the  antigen  component  of  the  vaccine,  leads  all  regulatory  and  clinical  trial
efforts in Brazil and has selected a top clinical research organization to conduct clinical trials.

On  February  22,  2021,  PDS  Biotechnology  and  Farmacore  announced  that  Blanver  Farmoquímica  e  Farmacêutica  S.A joined  their  efforts
(collectively the “Consortium”) to develop and commercialize a novel COVID-19 vaccine in Latin America. Under the terms of the agreement, São Paulo-
based Blanver will manufacture, promote, distribute, and commercialize the Infectimune-based COVID-19 vaccine in Latin America.

On  March  11,  2021  we  announced  that  the  Consortium  received  a  commitment  from  the  Secretary  for  Research  and Scientific  Training  of  the

MCTI, Brazil to fund up to approximately US$60 million to support the clinical development and commercialization of an Infectimune-based COVID-19.

The progression of the Farmacore development program was delayed in the fourth quarter of 2021.  After a review of the program by PDS and
Farmacore,    the  agreement  with  Farmacore  was  extended  for  six  months  to  May  31,  2022  to  provide  additional  time  to  Farmacore  to  commence
manufacturing  and  scale  up  of  drug  product  for  use  in  clinical  trials  and  any necessary  process  development  work.      PDS  will  continue  to  monitor
Farmacore’s  progress with this program.

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Our current pipeline of Versamune-based targeted immunotherapies and Infectimune-based therapies focuses on the use of selected disease-
associated antigens that have been demonstrated to be associated with a variety of solid tumors, as well as specific infectious diseases.  Our pipeline is
shown below:

We have never been profitable and have incurred net losses in each year since inception. Our net losses were $16.9 million, and $14.8 million for
the years ended December 31, 2021 and 2020, respectively. As of December 31, 2021, we had an accumulated deficit of $60.7 million. Substantially all of
our net losses have resulted from costs incurred in connection with its research and development programs and from general and  administrative  costs
associated with these operations.

As of December 31, 2021, we had $65.2 million in cash and cash equivalents.

Our future funding requirements will depend on many factors, including the following:

●

●

●

●

●

the timing and costs of our planned clinical trials;

the timing and costs of our planned preclinical studies of our Versamune platform;

the outcome, timing and costs of seeking regulatory approvals;

the terms and timing of any future collaborations, licensing, consulting or other arrangements that we may enter into;

the  amount  and  timing  of  any  payments  we  may  be  required  to  make  in  connection  with  the  licensing,  filing,  prosecution,  maintenance,
defense and enforcement of any patents or patent applications or other intellectual property rights; and

●

the extent to which we license or acquire other products and technologies.

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Selected Financial Operations Overview

Revenue

We have not generated any revenues from commercial product sales and do not expect to generate any such revenue in the near future.  We
may  generate  revenue  in  the  future  from a combination of research and development payments, license fees and other upfront payments or milestone
payments.

Research and Development Expenses

Research  and  development  expenses  include  employee-related  expenses,  licensing  fees  to  use  certain  technology  in  our  research  and
development projects, costs of acquiring, developing and manufacturing clinical trial materials, as well as fees paid to consultants and various entities that
perform certain research and testing on our behalf. Costs for certain development activities, such as clinical trials, are recognized based on an evaluation
of the progress to completion of specific tasks using data such as patient enrollment, clinical site activations or information provided by vendors on their
actual  costs  incurred.  Payments  for  these  activities  are based  on  the  terms  of  the  individual  arrangements,  which  may  differ  from  the  pattern  of  costs
incurred,  and  are  reflected  in  the  consolidated  financial  statements  as  prepaid  or  accrued  expenses.  Costs  incurred  in  connection  with  research  and
development activities are expensed as incurred.

We expect that our research and development expenses will increase significantly over the next several years as we advance our Versamune-
based  immuno-oncology,  or  I-O, candidates  into  and  through  clinical  trials,  pursues  regulatory  approval  of  our  injectable  Versamune  candidates  and
prepare for a possible commercial launch, all of which will also require a significant investment in contract and internal manufacturing and inventory related
costs.

The process of conducting human clinical trials necessary to obtain regulatory approval is costly and time consuming. We may never succeed in
achieving marketing approval for our injectable I-O candidates.  The probability of successful commercialization of our I-O candidates may be affected by
numerous  factors,  including  clinical  data  obtained  in  future  trials,  competition,  manufacturing  capability  and  commercial viability.    As  a  result,  we  are
unable to determine the duration and completion costs of our research and development projects or when and to what extent we will generate revenue
from the commercialization and sale of any of our product candidates.

The following table summarizes our research and development expenses incurred for the periods indicated (in thousands):

PDS projects
Clinical consulting
Salaries and other costs
Total

General and Administrative Expenses

Year Ended December 31,

2021

2020

  $

  $

6,173    $
732     
4,349     
11,254    $

4,601 
942 
2,381 
7,924 

General  and  administrative  expenses  consist  primarily  of  salaries  and  related  benefits,  including  stock-based  compensation,  related  to  our
executive, finance, legal, business development and support functions. Other general and administrative expenses include travel expenses, professional
fees for auditing, tax and legal services and facility-related costs.

Other Income

Other income consists of interest income earned on our cash and cash equivalents.

78

 
 
 
 
 
   
 
   
   
Index

Critical Accounting Policies

Our accounting policies are more fully described in Note 2 to the consolidated financial statements included in this Annual Report on Form 10-K.
As described in Note 2, the preparation of these financial statements requires us to make estimates and assumptions that affect the reported amounts of
assets  and  liabilities  and  the  disclosure  of  contingent  assets  and  liabilities  at  the  date  of  the  financial  statements,  as well  as  the  reported  revenue
generated and expenses incurred during the reporting periods. Our estimates are based on our historical experience and on various market specific and
other relevant assumptions that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the
carrying value of assets and liabilities that are not readily apparent from other sources. Estimates are assessed each period and updated to reflect current
information. Actual results may differ from these estimates. We believe that the following discussion addresses our most critical accounting policies, which
are those that are most important to the portrayal of our financial condition and results of operations and require management’s most difficult, subjective
and complex judgments.

Income Taxes

We file U.S. federal income tax returns and New Jersey state tax returns. Our deferred tax assets are primarily comprised of federal and state tax
net operating losses and tax credit carryforwards and are recorded using enacted tax rates expected to be in effect in the years in which these temporary
differences  are  expected  to  be  utilized.  At  December  31,  2021,  we  had  federal  net  operating  losses,  or  NOLs, carryforwards  of  approximately  $108.7
million,  $30.0  million  of  which  expire  at  various  dates  between  2028  and  2037,  losses  generated  in  2018  or  later  of  $78.7  million  will  carry  forward
indefinitely. At December 31, 2021, we had federal research  and development credits carryforwards of approximately $1.7 million. We may be subject to
the net operating loss utilization provisions of Section 382 of the Internal Revenue Code. The effect of an ownership change would be the imposition of an
annual limitation on the use of NOL carryforwards attributable to periods before the change. The amount of the annual limitation depends upon our value
immediately before the ownership change, changes to our capital during a specified period prior to the change, and the federal published interest rate.
Although we have not completed an analysis under Section 382 of the Code, it is likely that the utilization of the NOLs will be limited.

Accrued Clinical Expenses

When  preparing  our  financial  statements,  we  are  required  to  estimate  our  accrued  clinical  expenses.  This  process  involves  reviewing  open
contracts and communicating with our personnel to identify services that have been performed on our behalf and estimating the level of service performed
and  the  associated  cost  incurred  for  the  service  when  we  have  not  yet  been  invoiced  or  otherwise  notified  of  actual  cost.  If  we underestimate  or
overestimate the cost associated with a trial or service at a given point in time, adjustments to research and development expenses may be necessary in
future periods. Historically, our estimated accrued clinical expenses have approximated actual expense incurred.

Stock-based Compensation

We estimate the fair value of our stock-based option awards to employees, directors and non-employees using the Black-Scholes option-pricing
model, which requires the following assumptions: (1) the expected volatility of our stock is based on volatilities of a peer group of similar companies in the
biotechnology  industry  whose  share  prices  are  publicly  available,  (2)  the  expected  term  of  the  award  is  based  on  the simplified  method,  which  is  the
midpoint between the requisite service period and the contractual term of the option, as we have a limited history of being a public company from March
15, 2019 (the date of closing of the reverse merger between us and Edge Therapeutics, Inc.) to develop reasonable expectations about future exercise
patterns and employment duration for our options, (3) the risk-free interest rate based on U.S. Treasury notes with a term approximating the expected life
of the option and (4) expected dividend yield of 0, since we have never paid cash dividends and have no present intention to pay cash dividends.

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Index

Results of Operations

Comparison of the Years Ended December 31, 2021 and 2020

Operating expenses:
Research and development expenses
General and administrative expenses
Total operating expenses
Loss from operations
Interest income, net
Benefit from income taxes
Net loss and comprehensive loss

Research and Development Expenses

Year Ended December 31,

2021

2020

(in thousands)

Increase (Decrease)
%
$

  $

  $

11,254    $
10,185     
21,439     
(21,439)    
4     
4,516     
(16,918)   $

7,924    $
6,978     
14,902     
(14,902)    
55     
–     
(14,847)   $

3,330     
3,207     
6,537     
(6,537)    
(51)    
4,516     
(2,071)    

42%
46%
44%
44%
(93)%
100%
14%

For the year ended December 31, 2021, research and development expenses increased to approximately $11.3 million compared to approximately
$7.9 million for the year ended December 31, 2020. The increase of $3.4 million was primarily attributable to an increase in regulatory and clinical costs of
$2.6  million, non-cash  stock-based  compensation  of  $1.1  million  and  personnel  costs  of  $0.4  million,  partially  offset  by  an  overall  decrease  in
manufacturing and facility costs of $0.7 million.

General and Administrative Expenses

For the year ended December 31, 2021, general and administrative expenses increased to approximately $10.2 million compared to approximately
$7.0 million for the year ended December 31, 2020. The $3.2 million increase was primarily attributable to an increase in personnel costs of $1.0 million,
non-cash stock-based compensation of $2.5 million, and facilities costs of $0.1 million, partially offset by a decrease in professional fees of $0.4 million.

Benefit from Income Taxes

Income tax benefit was $4.5 million for the year ended December 31, 2021. In the second quarter of 2021, we recognized approximately $4.5
million as a Benefit from Income Taxes from the sale of our NJ tax benefits pursuant to the New Jersey Technology Business Tax Certificate Transfer Net
Operating  Loss  program.  This  transaction  reduced  our  reported  net  loss  and  comprehensive  income  for  the  year  ended  December  31,  2021  to
approximately $16.9 million, or approximately $2.1 million less than reported for the same period in 2020 which did not include a similar sale of NJ tax
benefits.

Liquidity and Capital Resources

In July 2019, we entered into a common stock purchase agreement, or the Aspire Purchase Agreement, with Aspire Capital pursuant to which, we
have the right, in our sole discretion, to present Aspire Capital Fund, LLC, or Aspire Capital, with a purchase notice, directing Aspire Capital (as principal)
to  purchase  up  to  100,000  shares  of  our  common  stock  per  business  day,  in  an  aggregate  amount of  up  to  $20.0  million  of  our  common  stock,  or  the
Purchased  Shares,  over  the  30-month  term  of  the  Aspire  Purchase  Agreement.  We  may  sell  an  aggregate  of  1,034,979  shares  of  our  common  stock
(which represented 19.99% of our outstanding shares of common stock on the date of the Aspire Purchase Agreement) without stockholder approval. We
may sell additional shares of our common stock above the 19.99% limit provided that (i) we obtain stockholder approval or (ii) stockholder approval has
not been obtained at any time the 1,034,979 share limitation is reached and at all times thereafter the average price paid for all shares issued under the
Aspire Purchase Agreement, is equal to or greater than $5.76, which was the consolidated closing bid price of our common stock on July 26, 2019. The
minimum price at which we can sell shares under the Aspire Purchase Agreement is $0.50. On July 29, 2019, we issued 100,654 shares of our common
stock to Aspire Capital, as consideration for entering into the Aspire Purchase Agreement, which we refer to as the Commitment Shares. We recorded the
fair value of the shares at July 29, 2019 of $603,924 as an expense in the third quarter of 2019. Concurrently with the Aspire Purchase Agreement, we
entered  into  a  registration  rights  agreement  with  Aspire  Capital,  or  the  Registration  Rights  Agreement.  In  accordance  with  the  Registration  Rights
Agreement, on August 20, 2019 we filed a Registration Statement on Form S-1 (File No. 333-232988) to cover the resale of the Commitment Shares and
any Purchased Shares issuable to Aspire Capital under the Aspire Purchase Agreement. As of December 31, 2021, no Purchase Shares have been sold
to Aspire Capital under the Aspire Purchase Agreement.  The Aspire Purchase Agreement expired in January 2022.

80

 
 
   
 
 
 
   
   
   
 
 
 
     
     
  
   
     
     
     
  
   
   
   
   
   
Index

In February 2020, we completed an underwritten public offering, in which we sold 10,000,000 shares of common stock at a public offering price of
$1.30 per share. The shares sold included 769,230 shares issued upon the exercise by the underwriter of its option to purchase additional shares at the
public  offering  price,  minus  underwriting  discounts  and  commissions.  We  received  gross  proceeds  of  approximately  $13  million and  net  proceeds  of
approximately $11.9 million after deducting underwriting discounts and commissions.

In July 2020, we filed a shelf registration statement, or the 2020 Shelf Registration Statement, with the SEC, for the issuance of common stock,
preferred  stock,  warrants, rights,  debt  securities  and  units,  which  we  refer  to  collectively  as  the  Shelf  Securities,  up  to  an  aggregate  amount  of  $100
million. The 2020 Shelf Registration Statement was declared effective on July 31, 2020. On August 13, 2020, we sold 6,900,000 shares of its common
stock  at  a  public  offering  price  of  $2.75  per  share  pursuant  to  the  2020  Shelf  Registration  Statement,  which  includes  900,000  shares  issued  upon  the
exercise  by  the  underwriter  of  its  option  to  purchase  additional shares  at  the  public  offering  price,  minus  underwriting  discounts  and  commissions.  We
received  gross  proceeds  of  approximately  $19.0  million  and  net  proceeds  of  approximately  $17.1  million,  after  deducting  underwriting  discounts  and
offering expenses.

In May 2021, we received approximately $4.5 million from the net sale of tax benefits to an unrelated, profitable New Jersey corporation pursuant

to our participation in the New Jersey Technology Business Tax Certificate Transfer Net Operating Loss program for State Fiscal Year 2020.

In June 2021, we sold 6,088,235 shares of our common stock at a public offering price of $8.50 per share pursuant to the 2020 Shelf Registration
Statement,  which  includes 794,117 shares issued upon the exercise by the underwriter of its option to purchase additional shares at the public offering
price,  minus  underwriting  discounts  and  commissions.  We  received  gross  proceeds  of  approximately  $51.7  million  and  net proceeds  of  approximately
$48.5 million, after deducting underwriting discounts and offering expenses. Approximately $29,300,000 of Shelf Securities remain available for future sale
under the 2020 Shelf Registration Statement

As of December 31, 2021, we had $65.2 million of cash and cash equivalents.

Our  primary  uses  of  cash  are  to  fund  operating  expenses,  primarily  research  and  development  expenditures.  Cash  used  to  fund  operating
expenses  is  impacted  by  the  timing  of when  we  pay  these  expenses,  as  reflected  in  the  change  in  our  outstanding  accounts  payable  and  accrued
expenses.

We evaluated whether there are any conditions and events, considered in the aggregate, that raise substantial doubt about its ability to continue
as a going concern within one year beyond the filing of this Annual Report on Form 10-K.  Our budgeted cash requirements in 2022 and beyond include
expenses  related  to  continuing  development  and  clinical  studies.    Based  on  our  available  cash  resources  and  cash  flow projections  as  of  the  date  the
consolidated financial statements were available for issuance, we believe there are sufficient funds to continue operations and research and development
programs for at least 12 months from the date of this report.

We plan to continue to fund our operations and capital funding needs through equity and/or debt financings. However, we cannot be certain that
additional financing will be available when needed or that, if available, financing will be obtained on terms favorable to us or our existing stockholders.  We
may  also  enter  into  government  funding  programs  and  consider  selectively  partnering  for  clinical  development  and commercialization.  The  sale  of
additional  equity  would  result  in  additional  dilution  to  our  stockholders.  Incurring  debt  financing  would  result  in  debt  service  obligations,  and  the
instruments  governing  such  debt  could  provide  for  operating  and financing  covenants  that  would  restrict  our  operations.  If  we  are  unable  to  raise
additional capital in sufficient amounts or on acceptable terms, we may be required to delay, limit, reduce, or terminate our product development or future
commercialization efforts or grant rights to develop and market immunotherapies that we would otherwise prefer to develop and market ourselves. Any of
these actions could harm our business, results of operations and prospects. Failure to obtain adequate financing also may adversely affect its ability to
operate as a going concern.

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Index

Cash flows

The following table shows a summary of our cash flows for each of the years indicated (in thousands):

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

Net Cash Used in Operating Activities

Year Ended December 31,

2021

2020

  $

  $

(12,486)   $
48,889     
36,403    $

(13,149)
29,827 
16,678 

Net cash used in operating activities was $12.5 million and $13.1 million for  the  years  ended  December  31,  2021  and  2020,  respectively.  The
decrease  in  cash  used  in  operating activities  of  $0.6  million  includes  the  $4.5  million  NOL  sale.  Excluding  the  NOL  sale,  net  cash  used  in  operating
activities  would  have  increased  $3.9  million  primarily  due  to  the  increase  in  the  loss  before  income  taxes  of  $6.6  million,  prepaid expenses  and  other
assets of $0.9 million, offset by an increase in stock-based compensation of $3.6 million.

Net Cash Provided by Financing Activities

Net  cash  provided  by  financing  activities  for  the  year  ended  December  31,  2021  was  primarily  due  to  the  receipt  of  net  proceeds  from  the

issuance of common stock of $48.5 million.

Net  cash  provided  by  financing  activities  for  the  year  ended  December  31,  2020  was  primarily  due  to  the  receipt  of  net  proceeds  from  the

issuance of common stock of $29.8 million.

Operating Capital Requirements

To date, we have not generated any product revenue. We do not know when, or if, we will generate any product revenue and we do not expect to
generate significant product revenue unless and until we obtain regulatory approval and commercialize one of our current or future product candidates. We
anticipate that we will continue to generate losses for the foreseeable future, and we expect the losses to increase as we continue the development of,
and seek regulatory approvals for, our tablet vaccine candidates, and begin to commercialize any approved vaccine candidates. We are subject to all of
the  risks  incident  to  the  development  of  new  products,  and  may encounter  unforeseen  expenses,  difficulties,  complications,  delays  and  other  unknown
factors that may harm our business. We expect to incur additional costs associated with operating as a public company and anticipate that we will need
substantial additional funding in connection with our continuing operations.

We evaluated whether there are any conditions and events, considered in the aggregate, that raise substantial doubt about our ability to continue
as  a  going  concern  within one  year  beyond  the  filing  of  this  Annual  Report.    Our  budgeted  cash  requirements  in  2022  and  beyond  include  expenses
related to continuing development and clinical studies.  We believe that our existing cash and cash equivalents as of December 31, 2021 are sufficient to
continue operations and research and development programs for at least the next 12 months from the date of this Annual Report. Until we can generate
significant cash from our operations, we expect to continue to fund our operations with available financial resources. These financial resources may not be
adequate to sustain our operations.

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Index

We  have  based  our  projections  of  operating  capital  requirements  on  assumptions  that  may  prove  to  be  incorrect  and  we  may  use  all  of  our
available  capital  resources  sooner  than we  expect.  Because  of  the  numerous  risks  and  uncertainties  associated  with  research,  development  and
commercialization  of  pharmaceutical  products,  we  are  unable  to  estimate  the  exact  amount  of  our  operating  capital  requirements.  Our  future  funding
requirements will depend on many factors, including, but not limited to:

●

●

●

●

●

●

●

the initiation, progress, timing, costs and results of our planned clinical trials;

the effects of health epidemics, pandemics, or outbreaks of infectious diseases, including the recent COVID-19 pandemic, on our business
operations, financial condition, results of operations and cash flows;

the  outcome,  timing  and  cost  of  meeting  regulatory  requirements  established  by  the  U.S.  Food  and  Drug  Administration,  or  FDA,  the
European Medicines Agency, or EMA, and other comparable foreign regulatory authorities;

the cost of filing, prosecuting, defending and enforcing our patent claims and other intellectual property rights;

the cost of defending potential intellectual property disputes, including patent infringement actions brought by third parties against us now or
in the future;

the effect of competing technological and market developments;

the cost of establishing sales, marketing and distribution capabilities in regions where we choose to commercialize our tablet vaccines on our
own; and

●

the initiation, progress, timing and results of our commercialization of our tablet vaccine candidates, if approved, for commercial sale.

Please see the section titled “Risk Factors” elsewhere in this Annual Report on Form 10-K for additional risks associated with our operations.

Purchase Commitments

We have no material non-cancelable purchase commitments with service providers as we have generally contracted on a cancelable, purchase

order basis.

Operations and Liquidity

While  the  potential  economic  impact  brought  by  and  over  the  duration  of  the  COVID-19  pandemic  may  be  difficult  to  assess  or  predict,  the
COVID-19 pandemic has resulted in significant disruption of global financial markets, which could in the future negatively affect our liquidity. In addition, a
recession or market volatility resulting from the COVID-19 pandemic could affect our business. We have taken proactive, aggressive action throughout the
COVID-19 pandemic to protect the health and safety of our employees and expect to continue to implement these measures until we determine that the
COVID-19 pandemic is adequately contained for purposes of our business. W e may take further actions as government authorities require or recommend
or  as  we determine  to  be  in  the  best  interests  of  our  employees.  Given  the  nature  and  type  of  our  short-term  investments,  we  do  not  believe  that  the
COVID-19 pandemic will have a material impact on our current investment liquidity.

Off-Balance Sheet Arrangements

We did not have during the periods presented, and we do not currently have, any off-balance sheet arrangements, as defined in the rules and

regulations of the SEC.

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Index

Smaller Reporting Company

As of January 1, 2021, we are no longer an “emerging growth company,” as defined in the Jumpstart Our Business Startups Act of 2012, or the
JOBS Act. However, we remain a “smaller reporting company,” as defined in Rule 12b-2 under the Securities Exchange Act of 1934, as amended. We will
cease to be a smaller reporting company if we have a non-affiliate public float in excess of $250 million and annual revenues in excess of $100 million, or
a non-affiliate public float in excess of $700 million, determined on an annual basis. Even though we no longer qualify as an emerging growth company,
we  may  still  qualify  as  a  smaller  reporting  company.  As  a  smaller reporting  company,  we  are  permitted  and  intend  to  rely  on  exemptions  from  certain
disclosure requirements that are applicable to other public companies that are not smaller reporting companies. These exemptions include:

•

•

•

•

being  permitted  to  provide  only  two  years  of  audited  consolidated  financial  statements  in  this  Annual  Report  on  Form  10-K, with
correspondingly reduced “Management’s Discussion and Analysis of Financial Condition and Results of Operations” disclosure;

reduced disclosure obligations regarding executive compensation;

not being required to furnish a contractual obligations table in “Management’s Discussion and Analysis of Financial Condition and Results of
Operations”; and

not being required to furnish a stock performance graph in our annual report.

We expect to continue to take advantage of some or all of the available exemptions.

ITEM 8.

Financial Statements and Supplementary Data

The financial statements required to be filed pursuant to this Item 8 are appended to this report. An index of those financial statements is found in

Item 15.

ITEM 9.

Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

None.

ITEM 9A.

Controls and Procedures

Limitations of Internal Control System

Because  of  the  inherent  limitations  in  a  cost-effective  control  system,  no  evaluation  of  internal  control  over  financial  reporting  can  provide
absolute assurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud, if any, within our company have
been  detected.  Therefore,  even  those  systems  determined  to  be  effective  can  provide  only  reasonable  assurance with  respect  to  financial  statement
preparation and presentation. Management does not expect that our disclosure controls and procedures or our internal control over financial reporting will
prevent or detect all errors and all fraud.

84

 
 
 
 
Index

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the design
and operation of our disclosure controls and procedures, (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of
1934 (the “Exchange Act”)), as of December 31, 2021. Based on that evaluation, management has concluded that, as of such date, our disclosure controls
and procedures were effective at the reasonable assurance level.

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed by us in reports that we file
or submit under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in SEC rules and forms, and that
such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate,
to allow timely decisions regarding required disclosure.

In designing and evaluating our disclosure controls and procedures, management recognized that disclosure controls and procedures, no matter
how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the disclosure controls and procedures are
met. Additionally, in designing disclosure controls and procedures, our management necessarily was required to apply its judgment in evaluating the cost-
benefit  relationship  of  possible  disclosure  controls  and  procedures.  The  design  of  any  disclosure  controls  and  procedures  also  is  based  in  part  upon
certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under
all potential future conditions.

Management’s Report on Internal Control over Financial Reporting

Our Management is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f)
and  15d-15(f)  under  the Exchange  Act.  Our  management  conducted  an  assessment  of  the  effectiveness  of  our  internal  control  over  financial  reporting
based  on  the  framework  established  in  the  2013 Internal  Control-Integrated  Framework  issued by  the  Committee  of  Sponsoring  Organizations  of  the
Treadway  Commission  (COSO).  Based  on  this  assessment,  our  management  has  determined  that  our  internal  control  over  financial  reporting  was
effective as of December 31, 2021.

Changes in Internal Control over Financial Reporting

There has been no change in our internal control over financial reporting in our most recent fiscal quarter that has materially affected, or is

reasonably likely to materially affect, our internal control over financial reporting.

ITEM 9B. Other Information

Not applicable.

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Index

PART III

Certain  information required by Part III is omitted from this Annual Report on Form 10-K because we will file a definitive Proxy Statement for the
Annual Meeting of Stockholders pursuant to Regulation 14A of the Securities Exchange Act of 1934 (the Proxy Statement), not later than 120 days after
the end of the fiscal year covered by this Annual Report on Form 10-K, and the applicable information included in the Proxy Statement is incorporated
herein by reference.

ITEM 10.

Directors, Executive Officers and Corporate Governance

The information required by this Item is incorporated herein by reference to the Proxy Statement.

ITEM 11.

Executive Compensation

The information required by this Item is incorporated herein by reference to the Proxy Statement.

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 Proxy Statement.

ITEM 13.

Certain Relationships and Related Transactions, and Director Independence

The information required by this Item is incorporated herein by reference to the Proxy Statement.

ITEM 14.

Principal Accounting Fees and Services

The information required by this Item is incorporated herein by reference to the Proxy Statement.

PART IV

ITEM 15.

Exhibits, Financial Statement Schedules

(a)          The following documents are filed as part of this report:

(1) Financial Statements:

Report of Independent Registered Public Accounting Firm (PCAOB ID  185)
Consolidated Balance Sheets
Consolidated Statements of Operations and Comprehensive Loss
Consolidated Statements of Changes in Stockholders’ Equity
Consolidated Statements of Cash Flows
Notes to Consolidated Financial Statements

(2) Financial Statement Schedules:

All  financial  statement  schedules  have  been  omitted  because  they  are  not  applicable,  not  required  or  the  information  required  is  shown  in  the
financial statements or the notes thereto.

(3) Exhibits.  The  exhibits  filed  as  part  of  this  Annual  Report  are  set  forth  on  the  Exhibit  Index  immediately  following  our  consolidated  financial

statements. The Exhibit Index is incorporated herein by reference.

ITEM 16.

Form 10-K Summary

We may voluntarily include a summary of information required by Form 10-K under this Item 16. We have elected not to include such summary

information.

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Index

Exhibit
Number

2.1

2.2

3.1

3.2

3.3

3.4

4.1

4.2

4.3

10.1

10.2

10.3

10.4

10.5

10.6

Exhibit Description

Agreement  and  Plan  of  Merger  and  Reorganization,  dated  November  23,  2018,  by  and  among  Edge  Therapeutics,  Inc.,  Echos  Merger
Sub, Inc. and PDS Biotechnology Corporation (filed as Exhibit 2.1 to the Company’s Current Report on Form 8-K filed on November 26,
2018, and incorporated by reference herein).

Amendment No. 1 to Agreement and Plan of Merger and Reorganization, dated January 24, 2019, by and among Edge Therapeutics, Inc.,
Echos Merger Sub, Inc. and PDS Biotechnology Corporation (filed as Exhibit 2.1 to the Company’s Current Report on Form 8-K filed on
January 30, 2019, and incorporated by reference herein).

Eighth Amended and Restated Certificate of Incorporation of Edge Therapeutics, Inc. (filed as Exhibit 3.1 to the Company’s Current Report
on Form 8-K filed on October 6, 2015, and incorporated by reference herein).

Third Amended and Restated Bylaws of PDS Biotechnology Corporation (filed as Exhibit 3.1 to the Company’s Current Report on Form 8-
K filed on March 15, 2022, and incorporated by reference herein).

Certificate of Amendment to Amended and Restated Certificate of Incorporation (filed as Exhibit 3.1 to the Company’s Current Report on
Form 8-K on March 18, 2019, and incorporated by reference herein).

Certificate of Amendment to Amended and Restated Certificate of Incorporation (filed as Exhibit 3.2 to the Company’s Current Report on
Form 8-K on March 18, 2019, and incorporated by reference herein).

Form of Certificate of Common Stock (filed as Exhibit 4.1 to the Company’s Pre-Effective Amendment No. 1 to the registration statement
on Form S-1 (File No. 333- 206416) filed on September 21, 2015, and incorporated by reference herein).

Description of Securities (filed as Exhibit 4.10 to the Company’s Annual Report on Form 10-K filed on March 27, 2020, and incorporated
by reference herein).

Form of Indenture (filed as Exhibit 4.3 to the Company’s registration statement on Form S-3 (File No. 333-240011) on July 22, 2020, and
incorporated by reference herein).

Clinical  Trial  Collaboration  and  Supply  Agreement,  dated  May  19,  2017,  by  and  between  PDS  Biotechnology  Corporation  and  MSD
International GmbH (filed as Exhibit 10.24 to the Company’s Registration Statement on Form S-4/A on January 25, 2019, and incorporated
by reference herein).

Patent License Agreement, dated January 5, 2015, by and between PDS Biotechnology Corporation and National Institutes of Health, as
amended by First Amendment, dated August 5, 2015 (filed as Exhibit 10.25 to the Company’s Registration Statement on Form S-4/A on
January 25, 2019, and incorporated by reference herein).

Cost Reimbursement Agreement, dated November 1, 2015, by and between PDS Biotechnology Corporation and University of Kentucky
Research  Foundation  (filed  as  Exhibit  10.26  to  the  Company’s Registration  Statement  on  Form  S-4/A  on  January  25,  2019,  and
incorporated by reference herein).

Cost Reimbursement Agreement, dated November 1, 2015, by and between PDS Biotechnology Corporation and University of Kentucky
Research  Foundation  (filed  as  Exhibit  10.27  to  the  Company’s Registration  Statement  on  Form  S-4/A  on  January  25,  2019,  and
incorporated by reference herein).

Public  Health  Service  Cooperative  Research  &  Development  Agreement  for  Intramural-PHS  Clinical  Research,  dated  effective  as  of
February  2,  2015,  by  and  between  the  National  Cancer Institute  and  PDS  Biotechnology  Corporation  (filed  as  Exhibit  10.28  to  the
Company’s Registration Statement on Form S-4/A on January 25, 2019, and incorporated by reference herein).

DOTAP  Chloride  Enantiomer  License  Agreement  effective  November  1,  2008,  between  Merck  Eprova  AG  and  PDS  Biotechnology
Corporation  (filed  as  Exhibit  10.29  to  the  Company’s  Registration Statement  on  Form  S-4/A  on  January  25,  2019,  and  incorporated  by
reference herein).

87

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Index

10. 7+

10. 8+

10. 9+

10.10+

10.11+

10.12+

10.13+

10.14+

10.15+

10.16+

10.17

10.18

PDS Biotechnology 2010 Equity Incentive Plan, and forms of agreement thereunder (filed as Exhibit 10.2 to the Company’s Registration
Statement on Form S-1/A on September 21, 2015, and incorporated by reference herein).

Second  Amended  and  Restated  PDS  Biotechnology  Corporation  2014  Equity  Incentive  Plan  (filed  as  Exhibit  10.3  to  the  Company’s
Current Report on Form 8-K on December 9, 2020, and incorporated by reference herein).

Employee Stock Option Agreement under the Second Amended and Restated PDS Biotechnology Corporation 2014 Equity Incentive Plan
(filed as Exhibit 10.4 to the Company’s Current Report on Form 8-K filed on December 9, 2020, and incorporated by reference herein).

PDS Biotechnology Corporation 2009 Stock Option Plan, as amended (filed as Exhibit 99.1 to the Company’s Registration Statement on
Form S-8 on June 4, 2019, and incorporated by reference herein).

PDS Biotechnology Corporation 2018 Stock Option Plan (filed as Exhibit 99.2 to the Company’s Registration Statement on Form S-8 on
June 4, 2019, and incorporated by reference herein).

Form  of  PDS  Biotechnology  Corporation  Option  Agreement  for  2009  Stock  Option  Plan,  as  amended  (filed  as  Exhibit  99.3  to  the
Company’s Registration Statement on Form S-8 on June 4, 2019, and incorporated by reference herein).

Form  of  PDS  Biotechnology  Corporation  Option  Agreement  for  2018  Stock  Incentive  Plan  (filed  as  Exhibit  99.4  to  the  Company’s
Registration Statement on Form S-8 on June 4, 2019, and incorporated by reference herein).

PDS Biotechnology Corporation 2019 Inducement Plan, as amended (filed as Exhibit 10.2 to the Company’s Current Report on Form 8-K
filed on December 9, 2020, and incorporated by reference herein).

Form of Stock Option Grant Notice and Stock Option Agreement under the 2019 Inducement Plan (filed as Exhibit 10.2 to the Company’s
Current Report on Form 8-K on June 20, 2019, and incorporated by reference herein).

Form of Indemnification Agreement for officers and directors (filed as Exhibit 10.9 to the Company’s Registration Statement on Form S-1
on August 14, 2015, and incorporated by reference herein).

Common Stock Purchase Agreement, dated July 29, 2019, by and among the Company and Aspire Capital Fund, LLC (filed as Exhibit
10.1 to the Company’s Current Report on Form 8-K on July 30, 2019, and incorporated by reference herein).

Sublease Agreement, effective as of March 5, 2020, by and between PDS Biotechnology Corporation and COWI North America, Inc. (filed
as Exhibit 10.37 to the Company’s Annual Report on Form 10-K filed on March 27, 2020, and incorporated by reference herein).

10.19*++

Patent License Agreement dated as of November 5, 2021, by and between PDS Biotechnology Corporation and the U.S. Department of
Health and Human Services, as represented by the National Cancer Institute.

10.20*++

Option Agreement with University of Georgia Research Foundation, Inc. effective as of October 25, 2021.

10.21*+

PDS Biotechnology Corporation Change of Control Severance Plan effective as of March 14, 2022.

10.22*+++

Amended and Restated Executive Employment Agreement by and between Frank K. Bedu-Addo and PDS Biotechnology Corporation,
effective as of March 14, 2022.

88

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Index

10.23*+++

Executive Employment Agreement by and between Gregory Conn, Ph.D. and PDS Biotechnology Corporation, effective as of March 14,
2022.

10.24*+++

Executive Employment Agreement by and between Matthew Hill and PDS Biotechnology Corporation, effective as of March 14, 2022.

10.25*+++

Executive Employment Agreement by and between Lauren V. Wood, M.D. and PDS Biotechnology Corporation, effective as of March 14,
2022.

21.1*

23.1*

31.1*

31.2*

32.1*

32.2*

Subsidiary of PDS Biotechnology Corporation.

Consent of KPMG LLP.

Principal Executive Officer’s Certifications Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Principal Financial Officer’s Certifications Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith).

Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith).

101.INS*

Inline XBRL Instance Document (the instance document does not appear in the Interactive Data File because its XBRL tags are
embedded within the Inline XBRL document)

101.SCH*

Inline XBRL Taxonomy Extension Schema Document

101.CAL*

Inline XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF*

Inline XBRL Taxonomy Extension Definition Linkbase Document

101.LAB*

Inline XBRL Taxonomy Extension Label Linkbase Document

101.PRE*

Inline XBRL Taxonomy Extension Presentation Linkbase Document

104

Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

+

*

Indicates management contract or compensatory plan.

Filed herewith unless otherwise indicated as furnished herewith

** Confidential  Treatment  has  been  requested  with  respect  to  certain  portions  of  this  Exhibit.  Omitted  portions  have  been  filed  separately  with  the

Securities and Exchange Commission.

++ Certain portions of this exhibit have been redacted pursuant to Item 601(b)(10)(iv) of Regulation S-K.

89

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Index

SIGNATURES

Pursuant to the requirements of the Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly  caused  this  Form  10-K  to  be
signed on its behalf by the undersigned, thereunto duly authorized.

March 31, 2022

March 31, 2022

PDS Biotechnology Corporation

By:

/s/ Frank Bedu-Addo
Frank Bedu-Addo, Ph.D.
President and Chief Executive Officer

By:

/s/ Matthew Hill
Matthew Hill
Chief Financial Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this Form 10-K has been signed by the following persons in the capacities indicated
below and on the dates indicated:

Signature

Title

Date

/s/ Frank Bedu-Addo
Frank Bedu-Addo, Ph.D.

/s/ Matthew Hill
Matthew Hill

/s/ Gregory Freitag
Gregory Freitag J.D., CPA

/s/ Stephen Glover
Stephen Glover

/s/ Sir Richard Sykes
Sir Richard Sykes

/s/ Kamil Ali-Jackson
Kamil Ali-Jackson

/s/ Otis W. Brawley
Otis W. Brawley

/s/ Ilian Iliev
Ilian Iliev

  President and Chief Executive Officer and Director

March 31, 2022

(Principal Executive Officer)

  Chief Financial Officer

(Principal Financial and Accounting Officer)

  Director

  Director

  Director

  Director

  Director

  Director

90

March 31, 2022

March 31, 2022

March 31, 2022

March 31, 2022

March 31, 2022

March 31, 2022

March 31, 2022

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Index

Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors
PDS Biotechnology Corporation:

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of PDS Biotechnology Corporation and subsidiary (the Company) as of December 31,
2021 and 2020, the related consolidated statements of operations and comprehensive loss, changes in stockholders’ equity, and cash flows for the years
then ended, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly,
in all material respects, the financial position of the Company as of December 31, 2021 and 2020, and the results of its operations and its cash flows for
the years then ended, in conformity with U.S. generally accepted accounting principles.

Basis for Opinion

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

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

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

Critical Audit Matters

Critical audit matters are matters arising from the current period audit of the consolidated financial statements that were communicated or required to be
communicated  to  the  audit  committee  and  that:  (1)  relate  to  accounts  or  disclosures  that  are  material  to  the  consolidated  financial  statements  and  (2)
involved our especially challenging, subjective, or complex judgments. We determined that there are no critical audit matters.

/s/ KPMG LLP

We have served as the Company’s auditor since 2019.

Short Hills, New Jersey
March 31, 2022

91

 
Index

PDS BIOTECHNOLOGY CORPORATION AND SUBSIDIARY
Consolidated Balance Sheets

ASSETS

Current assets:

Cash and cash equivalents
Prepaid expenses and other

Total current assets

Property and equipment, net
Operating lease right-to-use asset

Total assets

LIABILITIES AND STOCKHOLDERS’ EQUITY

Current liabilities:

Accounts payable
Accrued expenses
Operating lease obligation - short term

Total current liabilities

Noncurrent liability:

Operating lease obligation - long term

Total liabilities

STOCKHOLDERS’ EQUITY

Common stock, $0.00033 par value,  75,000,000 shares authorized at December 31, 2021 and December 31,

2020, 28,448,612 shares and  22,261,619 shares issued and outstanding at December 31, 2021 and December
31, 2020, respectively
Additional paid-in capital
Accumulated deficit

Total stockholders’ equity

Total liabilities and stockholders’ equity

See accompanying notes to the consolidated financial statements.

92

December 31,
2021

December 31,
2020

 $

 $

65,242,622 
1,597,569 
66,840,191 

28,839,565 
1,497,665 
30,337,230 

86 
357,611 

5,443 
547,706 

 $

67,197,888 

 $

30,890,379 

 $

 $

1,309,403 
2,187,704 
258,924 
3,756,031 

1,415,224 
1,735,322 
119,904 
3,270,450 

231,430 
3,987,461 

490,353 
3,760,803 

9,387 
   123,904,602 
(60,703,562)
63,210,427 

7,346 
70,907,315 
(43,785,085)
27,129,576 

 $

67,197,888 

 $

30,890,379 

 
 
   
 
   
     
 
   
     
 
  
  
  
  
 
  
  
  
  
  
  
  
  
 
  
  
  
  
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
  
  
  
  
  
  
  
  
  
  
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
  
  
  
  
 
Index

PDS BIOTECHNOLOGY CORPORATION AND SUBSIDIARY
Consolidated Statements of Operations and Comprehensive Loss

Operating expenses:

Research and development expenses
General and administrative expenses

Total operating expenses

Loss from operations

Other income:

Interest income

Loss before income taxes
Benefit from income taxes
Net loss and comprehensive loss

Per share information:
Net loss per share, basic and diluted

Year Ended December 31,

2021

2020

 $

 $

11,254,538 
10,184,773 
21,439,311 

7,924,450 
6,977,936 
14,902,386 

(21,439,311)

(14,902,386)

4,346 
(21,434,965)
4,516,488 
 $ (16,918,477)

55,006 
(14,847,380)
–
 $ (14,847,380)

 $

(0.66)

 $

(0.89)

Weighted average common shares outstanding basic and diluted

25,597,125 

16,745,044 

See accompanying notes to the consolidated financial statements.

93

 
 
 
 
 
   
 
   
     
 
  
  
  
  
 
  
  
  
  
  
  
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
  
  
  
  
  
  
  
  
 
  
  
  
  
  
  
Index

PDS BIOTECHNOLOGY CORPORATION AND SUBSIDIARY
Consolidated Statements of Changes in Stockholders’ Equity

Common Stock

  Shares Issued    

Amount

    Additional
    Paid-in Capital   

    Accumulated    
Deficit

Balance - December 31,  2019
Stock-based compensation expense
Issuance of common stock, net of issuance costs
Issuance of warrant exercise
Issuance of common stock from 401K match
Net loss
Balance - December 31,  2020

Stock-based compensation expense
Issuances of common stock, net of issuance costs
Issuance of common stock, from exercise of stock options
Issuance of common stock from 401K match
Net loss
Balance - December 31,  2021

See accompanying notes to the financial statements.

5,281,237 
– 
16,900,000 
65,240 
15,142 
– 
22,261,619 

– 
6,088,235 
82,116 
16,642 
– 
28,448,612 

 $

 $

94

1,742 
– 
5,581 
22 
1 
– 
7,346 

– 
2,009 
27 
5 
– 
9,387 

 $

40,633,670 
432,321 
29,750,921 
70,437 
19,966 
– 
70,907,315 

4,074,458 
48,542,989 
344,098 
35,742 
– 
 $ 123,904,602 

 $ (28,937,705)  $

– 
– 
– 
– 

(14,847,380)   
(43,785,085)   

– 
– 
– 
– 

(16,918,477)   
 $ (60,703,562)  $

Total
Equity
11,697,707 
432,321 
29,756,502 
70,459 
19,967 
(14,847,380)
27,129,576 

4,074,458 
48,544,998 
344,125 
35,747 
(16,918,477)
63,210,427 

 
 
 
   
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Index

PDS BIOTECHNOLOGY CORPORATION AND SUBSIDIARY
Consolidated Statements of Cash Flows

Cash flows from operating activities:

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

Stock-based compensation expense
Stock-based 401K company common match
Depreciation expense
Operating lease expense
Changes in operating assets and liabilities:

Prepaid expenses and other assets
Accounts payable
Accrued expenses
Restructuring reserve
Operating lease liabilities

Net cash used in operating activities

Cash flows from financing activities:
Proceeds from exercise of warrants
Proceeds from exercise of stock options
Proceeds from issuances of common stock, net of issuance costs

Net cash provided by financing activities

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

Year Ended December 31,

2021

2020

 $ (16,918,477)

 $ (14,847,380)

4,074,458 
35,747 
5,357 
241,031 

(99,904)
(105,821)
452,382 
– 
(170,839)
(12,486,066)

432,321 
19,967 
15,608 
160,684 

810,797 
217,504 
637,682 
(498,185)
(98,133)
(13,149,135)

– 
344,125 
48,544,998 
48,889,123 

70,459 
– 
29,756,502 
29,826,961 

36,403,057 
28,839,565 

16,677,826 
12,161,739 

Cash and cash equivalents at end of period

 $

65,242,622 

 $

28,839,565 

See accompanying notes to the consolidated financial statements.

95

 
 
 
 
 
   
 
   
     
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
  
  
  
  
  
  
  
  
 
  
  
  
  
 
Index

Note 1 – Nature of Operations

PDS BIOTECHNOLOGY CORPORATION AND SUBSIDIARY

Notes to Consolidated Financial Statements

PDS Biotechnology  Corporation,  a  Delaware corporation  (the  “Company”  or  “PDS”),  is  a  clinical-stage  immunotherapy  company  developing  a
growing pipeline of molecularly targeted immunotherapies designed to overcome the limitations of current immunotherapy and vaccine technologies. The
Company’s proprietary T-cell activating platforms designed to train the immune system to better attack and destroy disease; Versamune , for treatments in
oncology and Infectimune, for treatments in infectious disease  When paired with an antigen, which is a disease-related protein that is recognizable by the
immune system, Versamune and Infectimune have both been shown to induce, in vivo, large quantities of high-quality, highly potent polyfunctional CD4+
helper and CD8+ killer T-cells, a specific sub-type of T-cell that is more effective at killing infected or target cells. Infectimune is also  designed to promote
the  induction  of  disease-specific  neutralizing  antibodies.    The  Company’s  immuno-oncology  product  candidates  are  of  potential  interest  for  use  as  a
component of combination product candidates (for example, in combination with other leading technologies such as checkpoint inhibitors) to provide more
effective treatments across a range of advanced and/or refractory cancers. The Company is also evaluating our immunotherapies as monotherapies in
early-stage disease.  PDS is developing targeted product candidates to treat several cancers including Human Papillomavirus (HPV)-associated cancers,
melanoma, colorectal, lung, breast and prostate cancers. The Company infectious disease candidates are of potential interest for use in COVID-19 and
universal influenza vaccines.

In December 2019, a novel (new) coronavirus known as SARS-CoV-2 was first detected in Wuhan, Hubei Province, People’s Republic of China,
causing outbreaks of the coronavirus disease, known as COVID-19, that has now spread globally. On January 30, 2020, the World Health Organization
(WHO) declared COVID-19 a public health emergency. The Secretary of Health and Human  Services declared a public health emergency on January 31,
2020, under section 319 of the Public Health Service Act (42 U.S.C. 247d), in response to the COVID-19 outbreak. On March 11, 2020, the WHO declared
COVID-19 a pandemic and on March 13 the President declared a national emergency in response to the pandemic. PDS continues to learn more about
the full impact of the COVID-19 pandemic which has continued to evolve due to the emergence of variants of concern, resulting in new waves of infection
regionally and globally. The COVID-19 pandemic has and could continue to negatively affect the Company’s liquidity and operations.  To date, the start of
two of the  three initiated PDS0101 clinical trials were delayed, specifically as a result of the adverse impact the COVID-19 pandemic has had on clinical
trial operations for cancer indications in the United States. The FDA has continued to update its guidance assisting sponsors in assuring the safety of trial
participants,  maintaining  compliance  with  Good  Clinical  Practice  (GCP)  and  minimizing  risks  to  trial  integrity.    Clinical  trial  sites  have  implemented
institution-specific  measures  securing  the  safety  of  patients  and  staff  to ensure  the  integrity  of  the  trials  in  the  face  of  the  ongoing  pandemic.  All  three
studies have since been initiated despite the pandemic challenges; however, the evolving COVID-19 pandemic has impacted the pace of enrollment in
clinical trials in general and the Company may be negatively affected with its trials. COVID-19 related travel and other restrictions may also impact the
potential  for  on-site  monitoring  visiting  and  audits  and  inspections  by  Company  personnel,  third parties,  and  government  regulators.  There  may  be
shortages of site personnel and equipment necessary for the timely completion of the clinical trials. The Company is providing support to address these
challenges, but these mitigation measures may not overcome the obstacles that the pandemic has wrought which continue to impede progress of clinical
trials.

Although there is still uncertainty related to the anticipated impact of the COVID-19 pandemic and its variants on the Company’s  future  results,
management believes the Company’s current cash reserves leave us well-positioned to manage the business through this crisis as it continues to unfold.
However, the impacts of the COVID-19 pandemic and its variants  and its variants are broad-reaching and continuing and the financial impacts associated
with the COVID-19 pandemic and its variants are still uncertain.

Despite  the  economic  uncertainty  resulting  from  the  COVID-19  pandemic,  we  intend  to  continue  to  focus  on  the  development  of our  product
candidates and we have expanded our infectious disease pipeline since the pandemic brought renewed resources and interest on technologies such as
the  Versamune  platform  in  the  context  of  research  and  development  in  prevention  of COVID-19.  We  licensed  Versamune  to  Farmacore  in  Brazil  to
develop PDS0203; a vaccine for the prevention of COVID-19.  The Secretary for Research and Scientific Training of The Ministry of Science, Technology
and Innovation of Brazil provided a commitment to fund up to approximately US$60 million to support the clinical development and commercialization of a
Versamune-based COVID-19 vaccine in Brazil. We have not received confirmation of the availability of financial resources within the MCTI to support the
clinical  development  and  commercialization  of  a  Versamune-based  COVID-19  vaccine  in  Brazil.  Clinical  development  and  commercialization  of  a
Versamune-based COVID-19 vaccine in Brazil has not been initiated.

Due to delays in the program, in the fourth quarter of 2021, we met with Farmacore and performed a detailed program review.  As the result of
that review, we extended the contract with Farmacore for six months through May 31,  2022.  This allows time for Farmacore to begin manufacturing and
scale  up  of  product  for  the  use  in  clinical  studies  and  further  research and  development.    We  are  continuing  to  monitor  the  status  of  the  technical
manufacturing activities with Farmacore.

PDS  has  developed  numerous  patents  and  patent  applications  and  owns  substantial  know-how  and  trade  secrets  related  to  its Versamune
platform. As of December 31, 2021, PDS holds six (6) U.S. patents with granted claims directed to its platform technology and  sixteen (16) pending U.S.
patent applications. These issued patents will expire in 2028, 2029, 2031 and 2033. Should the more recently submitted patent applications currently in
prosecution be issued, these will expire in 2033 through 2037 assuming no patent term extensions are granted. As of March 1, 2022, PDS holds seventy
(70) issued  foreign  patents  and thirty-eight (38) pending or published foreign patent applications.  Most of our international issued patents are issued in
multiple  countries  including  Europe,  Japan  and  Australia,  and  all  of  which  cover  compositions  of matter  and  methods  of  use  related  to  its  platform
technology. These issued patents will expire in 2031-2037, or later if patent term extension applies. Most recently, the USPTO allowed an application for
PDS’s HPV 16 immunotherapy which when granted will run until October 2037.

96

 
Index

Licensed patents

We  have  licensed  patented antigens  from  the  US  government  for  use  in  our  cationic  lipid  immunotherapies. We  have  licensed  T-cell  receptor
gamma alternate reading frame protein (“TARP”) from the National Cancer Institute (“NCI”) to develop and commercialize TARP peptide-based therapies
in combination with the Company’s Versamune  technology and any other of the Company’s proprietary technologies for prostate and breast cancers and
Acute Myeloid Leukemia.  These patents are directed to Immunogenic Peptides and Peptide Derivatives for The Treatment of Prostate and Breast Cancer
Treatment and Multi-Epitope TARP Peptide Vaccine and Uses Thereof. These antigens are incorporated in PDS0102 with Versamune.  We have licensed
mucin-1 (“MUC1”) novel highly immunogenic agonist epitopes of MUC1 developed by the National Cancer Institute. MUC1 is highly expressed in multiple
solid tumors and has been shown to be associated with drug resistance and poor disease prognosis in breast, colorectal, lung and ovarian cancers, for
which PDS0103 is being developed.   We have been granted patents and are pursuing additional patents that cover compositions and methods of use of
cationic lipid immunotherapies with each of the licensed technologies.

We  entered  into  a  non-exclusive  agreement  to  license  Computationally  Optimized  Broadly  Reactive  Antigen  (COBRA)  with  the University  of
Georgia Research Foundation. These antigens are developed by Dr. Ted Ross at the University of Georgia.  We believe that the combination of these
antigens with our proprietary Versamune technology has potential to induce a broad immune response as a universal flu vaccine.

Note 2 – Summary of Significant Accounting Policies

(A)

Use of estimates:

The  preparation  of  consolidated  financial  statements  in  conformity  with  U.S.  GAAP  requires  management  to  make  estimates  and assumptions
that  affect  the  reported  amounts  of  assets  and  liabilities  and  the  reported  amounts  of  revenues  and  expenses  at  the  date  of  the  consolidated  financial
statements and during the reporting periods, and to disclose contingent assets and liabilities at the date of the consolidated financial statements. Actual
results could differ from those estimates. The most significant estimate relates to the fair value of securities underlying stock-based compensation.

(B)

Significant risks and uncertainties:

The Company’s operations are subject to a number of factors that may affect its operating results and financial condition. Such factors include,
but are not limited to: the clinical and regulatory development of its products, the Company’s ability to preserve its cash resources, the Company’s ability
to add product candidates to its pipeline, the Company’s intellectual property, competition from products manufactured and sold or being developed by
other companies, the price of, and demand for, Company products if approved for  sale,  the  Company’s  ability  to  negotiate  favorable  licensing  or  other
manufacturing and marketing agreements for its products, and the Company’s ability to raise capital.

The Company currently has no commercially approved products.  As such, there can be no assurance that the Company’s future research and
development programs will be successfully commercialized. Developing and commercializing a product requires significant time and capital and is subject
to  regulatory  review  and  approval  as  well  as  competition  from  other biotechnology  and  pharmaceutical  companies.  The  Company  operates  in  an
environment of rapid change and is dependent upon the continued services of its employees and consultants and obtaining and protecting its intellectual
property.

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Index

(C)

Cash equivalents and concentration of cash balance:

The  Company  considers  all  highly  liquid  securities  with  a  maturity  weighted  average  of  less  than  three  months  to  be  cash equivalents.  The

Company’s cash and cash equivalents in bank deposit accounts, at times, may exceed federally insured limits.

(D)

Property and equipment:

Property  and  equipment  are  recorded  at  cost.  Depreciation  is  recorded  for  property  and  equipment  using  the  straight-line method  over  the
estimated useful life of five years. The Company reviews the recoverability of all long-lived assets, including the related useful lives, whenever events or
changes in circumstances indicate that the carrying amount of a long-lived asset might not be recoverable.

(E)

Research and development:

Costs  incurred  in  connection  with  research  and  development  activities  are  expensed  as  incurred.  These  costs  include  licensing fees  to  use
certain technology in the Company’s research and development projects as well as fees paid to consultants and entities that perform certain research and
testing on behalf of the Company.

(F)

Patent costs:

The  Company  expenses  patent  costs  as  incurred  and  classifies  such  costs  as  general  and  administrative  expenses  in  the accompanying

statements of operations and comprehensive loss.

(G)

Stock-based compensation:

The Company accounts for its stock-based compensation in accordance with ASC Topic 718, Compensation—Stock  Compensation (“ASC 718”).
ASC 718 requires all stock-based payments to employees, directors and non-employees to be recognized as expense in the consolidated statements of
operations and comprehensive loss based on their grant date fair values. In order to determine the fair value of stock options on the date of grant, the
Company uses the Black-Scholes option-pricing model. Inherent in this model are assumptions related to expected stock-price volatility, option  term, risk-
free interest rate and dividend yield. While the risk-free interest rate and dividend yield are less subjective assumptions that are based on factual data
derived from public sources, the expected stock-price volatility and option term assumptions require a greater level of judgment. The Company expenses
the  fair  value  of  its  stock-based  compensation  awards  to  employees  and  directors  on  a  straight-line  basis  over  the  requisite  service  period,  which  is
generally the vesting period. The Company recognizes forfeitures as they occur.

In lieu of higher cash compensation, the Company has granted non-employee options to consultants and expensed $ 1,389 and $1,027 during the

years ended December 31, 2021 and 2020, respectively.

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(H)

Net loss per common share:

Basic  net  loss  per  common  share  is  calculated  by  dividing  the  net  loss  by  the  weighted  average  number  of  common  stock  shares outstanding
during the period. Diluted net loss per common share is the same as basic net loss per common share, because potentially dilutive securities would have
an antidilutive effect as the Company incurred a net loss for the years ended December 31, 2021 and 2020.

The potentially dilutive securities excluded from the determination of diluted loss per share as their effect is antidilutive, are as follows:

Stock options to purchase Common Stock
Warrants to purchase Common Stock
Total

(I)

Income taxes:

Year Ended December 31,

2021
3,163,835 
197,518 
3,361,353 

2020
1,650,898 
197,518 
1,848,416 

The  Company  provides  for  deferred  income  taxes  under  the  asset  and  liability  method,  which  requires  deferred  tax  assets  and liabilities  to  be
recognized for the future tax consequences attributable to net operating loss carryforwards and for differences between the financial statement carrying
amounts and the respective tax bases of assets and liabilities. Deferred tax assets are reduced if necessary, by a valuation allowance if it is more likely
than not that some portion or all of the deferred tax assets will not be realized.

(J)

Fair value of financial instruments:

FASB  ASC  820,  Fair  Value  Measurement  Disclosures,  specifies  a  hierarchy  of  valuation  techniques  based  on  whether  the  inputs  to  those
valuation  techniques  are  observable  or  unobservable.  Observable  inputs  reflect  market  data  obtained  from  independent  sources,  while  unobservable
inputs reflect market assumptions. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities
(Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement).

The three levels of the fair value hierarchy are as follows:

•

•

•

Level 1 — Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the
measurement  date.  Level  1  primarily  consists  of  financial instruments  whose  value  is  based  on  quoted  market  prices  such  as  exchange-
traded instruments and listed equities.

Level 2 — Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly (e.g.,
quoted prices of similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in markets that are not
active). Level 2 includes financial instruments that are valued using models or other valuation methodologies.

Level 3 — Unobservable inputs for the asset or liability. Financial instruments are considered Level 3 when their fair values are determined
using pricing models, discounted cash flows or similar techniques and at least one significant model assumption or input is unobservable.

(K)

Subsequent events:

Subsequent events have been evaluated through the date these financial statements were issued. See Note 13.

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(L)

New accounting standards adopted:

Recently Adopted Accounting Pronouncements

Recently issued accounting pronouncements did not, or are not believed by management to, have a material effect on our present or future consolidated
financial statements.

Recent Accounting Pronouncements Not Yet Adopted

All recently issued accounting pronouncements are not expected to have a material effect on the consolidated financial statements.

Note 3 – Liquidity and Capital Resources

As  of  December  31,  2021,  the  Company  had  $ 65.2  million  of  cash  and  cash  equivalents.  The  Company’s  primary  uses  of  cash  are  to  fund
operating  expenses,  primarily  research  and  development  expenditures.  Cash  used  to  fund  operating  expenses  is  impacted  by  the  timing  of  when  the
Company pays these expenses, as reflected in the change to the Company’s outstanding accounts payable and accrued expenses.

On  July  29,  2019,  the  Company  entered  into  a  common  stock  purchase  agreement,  or  the  Aspire  Purchase  Agreement,  with  Aspire Capital
pursuant  to  which,  the  Company  has  the  right,  in  its  sole  discretion,  to  present  Aspire  Capital  Fund,  LLC,  or  Aspire  Capital,  with  a  purchase  notice,
directing Aspire Capital (as principal) to purchase up to 100,000 shares of the Company’s common stock per business day, in an aggregate amount of up
to $20.0 million of its common stock, or the Purchased Shares, over the  30-month  term of the Aspire Purchase Agreement. The Company may sell an
aggregate  of 1,034,979  shares  of  its  common  stock  (which  represented 19.99%  of  its  outstanding  shares  of  common  stock  on  the  date  of  the  Aspire
Purchase Agreement) without stockholder approval. The Company may sell additional shares of its common stock above the 19.99% limit provided that (i)
the Company obtains stockholder approval or (ii) stockholder approval has not been obtained at any time the 1,034,979 share limitation is reached and at
all times thereafter the average price paid for all shares issued under the Aspire Purchase Agreement, is equal to or greater than $5.76,  which was the
consolidated closing bid price of the Company’s common stock on July 26, 2019. The minimum price at which the Company can sell shares under the
Aspire Purchase Agreement is $0.50. On July 29, 2019, the Company issued  100,654 shares of its common stock to Aspire Capital, as consideration for
entering  into  the  Aspire  Purchase  Agreement,  which  the  Company  refers  to  as  the  Commitment  Shares.  The  Company  recorded  the  fair  value  of  the
shares at July 29, 2019 of $603,924 as an expense in the third quarter of 2019. Concurrently with the Aspire Purchase Agreement, the Company entered
into a registration rights agreement with Aspire Capital, or the Registration Rights Agreement. In accordance with the Registration Rights Agreement, on
August 20, 2019, the Company filed a Registration Statement on Form S-1 (File No. 333-232988) to cover the resale of the Commitment Shares and any
Purchased Shares issuable to Aspire Capital under the Aspire Purchase Agreement. As of December 31, 2021, no Purchase Shares have been sold to
Aspire Capital under the Aspire Purchase Agreement. The Aspire Purchase Agreement expired in January 2022, and we have no plans to raise capital
under the Aspire Purchase Agreement.

In  February  2020,  the  Company  completed  an  underwritten  public  offering,  in  which  it  sold  10,000,000  shares  of  common  stock  at  a  public
offering price of $1.30 per share. The shares sold included  769,230 shares issued upon the exercise by the underwriter of its option to purchase additional
shares at the public offering price, minus underwriting discounts and commissions. The Company received gross proceeds of approximately $13 million
and net proceeds of approximately $11.9 million after deducting underwriting discounts and commissions.

In  July  2020,  the  Company  filed  a  shelf  registration  statement,  or  the  2020  Shelf  Registration  Statement,  with  the  SEC,  for  the issuance  of
common  stock,  preferred  stock,  warrants,  rights,  debt  securities  and  units,  which  the  Company  refers  to  collectively  as  the  Shelf  Securities,  up  to  an
aggregate amount of $100 million. The 2020 Shelf Registration Statement was declared effective on July 31, 2020.

In August 2020, the Company sold  6,900,000 shares of its common stock at a public offering price of $2.75 per share pursuant to the 2020 Shelf
Registration  Statement,  which includes 900,000  shares  issued  upon  the  exercise  by  the  underwriter  of  its  option  to  purchase  additional  shares  at  the
public offering  price,  minus  underwriting  discounts  and  commissions.  The  Company  received  gross  proceeds  of  approximately  $19.0  million  and net
proceeds of approximately $17.1 million, after deducting underwriting discounts and offering expenses.

In May 2021, the Company received approximately $ 4.5 million from the net sale of tax benefits through 2019 to an unrelated, profitable New
Jersey  corporation  pursuant  the  Company’s  participation  in  the  New  Jersey  Technology  Business Tax  Certificate  Transfer  Net  Operating  Loss  (NOL)
program for State Fiscal Year 2020.

In  June  2021,  the  Company  completed  an  underwritten  public  offering  in  which  it  sold  6,088,235  shares  of  common  stock  at  a  public  offering
price of $8.50 per share pursuant to the 2020 Shelf Registration Statement, which includes  794,117 shares issued upon the exercise by the underwriter of
its option to purchase additional shares at the public offering price, minus underwriting discounts and commissions. the Company received gross proceeds
of  approximately  $51.7  million  and  net  proceeds  of  approximately  $ 48.5  million,  after  deducting  underwriting  discounts  and  offering  expenses.
Approximately $29,300,000 of Shelf Securities remain available for future sale under the 2020 Shelf Registration Statement.

The  Company’s  primary  uses  of  cash  are  to  fund  operating  expenses,  primarily  research  and  development  expenditures.  Cash  used  to fund
operating expenses is impacted by the timing of when the Company pays these expenses, as reflected in the change in its outstanding accounts payable
and accrued expenses.

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The Company evaluated whether there are any conditions and events, considered in the aggregate, that raise substantial doubt about its ability to
continue as a going concern within one year beyond the filing of this Annual Report on Form 10-K. The Company’s budgeted cash requirements in 2022
and beyond include expenses related to continuing development and clinical studies.  Based on its available cash resources and cash flow projections as
of the date the consolidated financial statements were available for issuance, management believes there are sufficient funds to continue operations and
research and development programs for at least 12 months from the date of this report.

The Company plans to continue to fund its operations and capital funding needs through equity and/or debt financings. However, the Company
cannot be certain that additional financing will be available when needed or that, if available, financing will be obtained on terms favorable to the Company
or its existing stockholders.  The Company may also enter into government funding programs and consider selectively partnering for clinical development
and commercialization. The sale of additional equity would result in additional dilution to the Company’s stockholders. Incurring debt financing would result
in debt service obligations, and the instruments governing such debt could provide for operating and financing covenants that would restrict its operations.
If the Company is unable to raise additional capital in sufficient amounts or on acceptable terms, we may be required to delay, limit, reduce, or terminate
its  product  development  or  future  commercialization  efforts  or  grant  rights  to  develop  and  market  immunotherapies  that  the  Company  would  otherwise
prefer to develop and market itself. Any of these actions could harm its business, results of operations and prospects. Failure to obtain adequate financing
also may adversely affect the Company’s ability to operate as a going concern.

Note 4 – Fair Value of Financial Instruments

There were no transfers between Levels 1, 2, or 3 during the years ended December 31, 2021 or 2020.

Fair Value Measurements at Reporting Date Using
Quoted Prices in
Active Markets
(Level 1)

Quoted Prices in
Inactive Markets
(Level 2)

Significant
Unobservable Inputs
(Level 3)

Total

As of December 31, 2021:

Cash and cash equivalents

As of December 31, 2020:

Cash and cash equivalents

Note 5 – Property and Equipment

Property and equipment is summarized as follows:

Furniture and equipment
Computer and Telephone equipment
Lab equipment
Total furniture and equipment
Less accumulated depreciation
Property and equipment, net

 $ 65,242,622 

 $

65,242,622 

 $

 $ 28,839,565 

 $

28,839,565 

 $

– 

 $

– 

 $

– 

– 

December 31,

2021

2020

14,964 
13,545 
86,911 
115,420 
(115,334)
86 

 $

 $

14,964 
13,545 
86,911 
115,420 
(109,977)
5,443 

 $

 $

Depreciation expense for the years ended December 31, 2021 and 2020 was $ 5,357 and $15,608, respectively.

Note 6 – Leases

On July 8, 2019, the Company entered into a lease termination agreement for its office space located at 300 Connell Drive, Suite 4000, Berkeley
Heights,  NJ  07922  effective  August  31,  2019  (the  “Lease  Termination  Agreement”).  Pursuant  to  the  Lease  Termination  Agreement,  the  Company  was
required to pay 50 percent of the remaining lease payments of $ 665,802 over three installments on September 1, 2019, December 1, 2019, and March 1,
2020,  which  was  recorded  as  lease  termination  costs  in  the  third  quarter of 2019. The Company entered into a  temporary  month-to-month  lease  as  of
September  1,  2019,  for  office  space  located  at  830  Morris  Turnpike,  Short  Hills,  NJ  07078  until  the  Company  entered  into  a  new  lease  for  permanent
office space. This lease was terminated on May 31, 2020.

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Effective  March  5,  2020,  the  Company  entered  into  a  sublease  for  approximately  11,200  square  feet  of  office  space  located  at  25B  Vreeland
Road, Suite 300, Florham Park, NJ. The sublease commenced on May 1, 2020 and will continue for a term of forty (40) months with an option to renew
through  October  31,  2027. As  of  December  31,  2021,  there  are  twenty  ( 20)  months  remaining  in  the  lease  term.   Upon  inception  of  the lease,  the
Company recognized approximately $0.7 million of a ROU asset and operating lease liabilities. The discount rate used to measure the operating lease
liability  as  of  May  1,  2020,  was 9.15%.  Throughout  the  period  described  above  the  Company  has maintained,  and  continues  to  maintain,  a  month-to-
month lease for its research facilities at the Princeton Innovation Center BioLabs located at 303A College Road E, Princeton NJ, 08540.

Supplemental cash flow information related to operating leases is as follows:

Cash paid for operating lease liabilities
Right-of use assets recorded  in exchange for lease obligations

For the year ended December 31, 2021, the Company’s operating lease expense was $ 241,031.

Year ended December 31,
2022
2023
2024
2025
2026 and after
Total future minimum lease payments
Less imputed interest

Note 7 – Accrued Expenses

Accrued expenses consist of the following:

Accrued research and development costs
Accrued professional fees
Accrued compensation
Accrued rent

Total

102

Year Ended December 31,

2021

2020

  $
  $

170,839    $
–    $

98,133 
668,764 

 $

 $

294,986 
239,469 
– 
– 
– 
534,455 
(44,101)
490,354 

December 31,

2021

227,400 
485,400 
1,458,310 
16,594 
2,187,704 

 $

 $

2020

204,780 
219,822 
1,310,720 
– 
1,735,322 

 $

 $

 
 
 
 
 
   
 
   
 
  
  
  
  
  
  
 
 
 
 
 
 
   
 
  
  
  
  
  
  
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Note 8 – Stock-Based Compensation

The Company has  three equity compensation plans: the 2009 Stock Option Plan, 2014 Equity Incentive Plan and the 2018 Stock Incentive Plan

(the “Plans”).

In 2014, the Company’s stockholders approved the 2014 Equity Incentive Plan pursuant to which the Company may grant up to  91,367 shares as
ISOs, NQs and restricted stock units (“RSUs”), subject to increases as hereafter described (the “Plan Limit”). In addition, on January 1, 2015, and each
January 1 thereafter and prior to the termination of the 2014 Equity Incentive Plan, pursuant to the terms of the 2014 Equity Incentive Plan, the Plan Limit
was and shall be increased by the lesser of (x) 4% of the number of shares of Common Stock outstanding as of the immediately preceding December 31
and (y) such lesser number as the Board of Directors may determine in its discretion. In March 2019, the Plan was amended and restated which removed
the annual increase component and was limited to 826,292 shares.

As  previously  disclosed,  on  December  8,  2020,  the  Board  of  Directors  of  the  Company  adopted,  subject  to  stockholder approval,  the  Second
Amended and Restated PDS Biotechnology Corporation 2014 Equity Inventive Plan (the “Restated Plan”), which would amend and restate the Amended
and Restated PDS Biotechnology Corporation 2014 Equity Incentive Plan (the “Current Plan”).   The Company held its annual meeting of stockholders on
June 17, 2021 (the “Annual Meeting”).  The stockholders voted to approve the Restated Plan at the Annual Meeting.  The Restated Plan is identical to the
Current Plan in all material respects, except as follows: (a) the number of shares of Common Stock authorized for issuance under the Restated Plan will
increase  from 826,292  shares  to  3,339,243  shares,  plus  the  total  number  of  shares  that  remained  available for  issuance,  that  are  not  covered  by
outstanding  awards  issued  under  the  Current  Plan,  immediately  prior  to  December  8,  2020;  and  (b)  the  Restated  Plan  will  terminate  on  December  7,
2030, unless earlier terminated.

In 2018, the Company’s stockholders approved the 2018 Stock Incentive Plan pursuant to which the Company may grant up to  558,071 shares
as  (i)  Stock  Options,  (ii)  Stock  Appreciation  Rights,  (iii)  Restricted  Stock,  (iv)  Preferred  Stock,  (v)  Stock  Reload  Options  and/or (vi)  Other  Stock-Based
Awards.

Pursuant to the terms of the Plans, ISOs have a term of  ten years from the date of grant or such shorter term as may be provided in the option
agreement. Unless specified otherwise in an individual option agreement, ISOs generally vest over a four-year term and NQs generally vest over a  one-
to-five-year  term.  Unless  terminated  by  the  Board,  the  Plans  shall continue  to  remain  effective  for  a  term  of ten years  or  until  such  time  as  no  further
awards  may  be  granted  and  all  awards  granted under  the  Plans  are  no  longer  outstanding.  As  of  December  31,  2021,  there  were 190,799  shares
available for grant under the 2018 Stock Incentive Plan.

On June 17, 2019, the Board adopted the 2019 Inducement Plan (the “Inducement Plan”). The Inducement Plan provides for the  grant  of  non-
qualified stock options. The Inducement Plan was recommended for approval by the Compensation Committee of the Board and subsequently approved
and adopted by the Board without stockholder approval pursuant to Rule 5635(c)(4) of the Nasdaq Listing Rules.

On December 8, 2020, the Company amended the Inducement Plan solely to increase the total number of shares of Common Stock reserved for
issuance  under  the  Inducement  Plan  from 200,000  shares  to  500,000  shares. The  2019  Inducement  Plan  is  administered  by  the  Compensation
Committee of the Board. In accordance with Rule 5635(c)(4) of the Nasdaq Listing Rules, non-qualified stock options under the 2019 Inducement Plan
may only be made to an employee who has not previously been an employee or member of the Board (or any parent or subsidiary of the Company), or
following  a  bona  fide period of non-employment by the Company (or a parent or subsidiary of the Company), if he or she is granted such non-qualified
stock options in connection with his or her commencement of employment with the Company or a subsidiary and such grant is an inducement material to
his or her entering into employment with the Company or such subsidiary. As of December 31, 2021, there were 127,400 shares available for grant under
the 2019 Inducement Plan.

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The  following  table  summarizes  the  components  of  stock-based  compensation  expense  in  the  consolidated  statements  of  operations and

comprehensive loss for the years ended December 31, 2021 and 2020:

Research and development
General and administrative

Total

Year Ended December 31,

2021
1,395,957 
2,678,500 
4,074,457 

 $

 $

2020

229,977 
202,344 
432,321 

 $

 $

The following table summarizes the stock option activity for the Company’ stock option plans for the year ended December 31, 2021:

Balance at January 1,  2021
Granted
Exercised
Forfeited
Options outstanding at December 31,  2021

Vested and expected to vest at December 31,  2021

Exercisable at December 31,  2021

Weighted
Average
Exercise
Price

Weighted
Average
Remaining
Contractual
Life in Years    

Aggregate
Intrinsic
Value

11.87 
4.35 
6.59 
29.67 
5.57 

5.57 

6.55 

7.03 
9.11 
– 
– 
7.90 

7.90 

6.41 

 $

 $

 $

226,731 
8,803,138 
– 
– 
10,839,589 

10,839,589 

– 

Number
of Shares

1,650,897 
1,958,030 
(117,958)
(327,134)
3,163,835 

3,163,835 

1,437,539 

 $
 $
 $
 $
 $

 $

 $

As of December 31, 2021 there was approximately $ 11,800,706 of unamortized stock compensation expense, which is expected to be recognized

over a remaining average vesting period of 2.89 years.

The weighted-average grant date fair value of the stock options granted in 2021 was $ 7.65 per share.

The  fair  value  of  options  granted  during  the  year  ended  December  31,  2021  was  estimated  using  the  Black-Scholes  option  valuation  model

utilizing the following assumptions:

Volatility
Risk-Free Interest Rate
Expected Term in Years
Dividend Rate

Year Ended December 31,

2021

2020

Weighted Average
100.53%   
0.49%   
6.06 
– 

97.50%
0.39%
6.04 
– 

Fair Value of Option on Grant Date

 $

7.65 

 $

1.14 

Expected volatility. The expected volatility assumption is based on volatilities of a peer group of similar companies in the biotechnology industry

whose share prices are publicly available.

Risk-free interest rate . The risk-free interest rate assumption is based on observed interest rates appropriate for the expected term of the stock

option grants.

Expected term. The expected term represents the period options are expected to be outstanding. The expected term of the options is based on
using the simplified method, which is the midpoint between the requisite service period and the contractual term of the option, since the Company has a
limited history of being a public company from March 15, 2019 (the date of the Merger) to develop reasonable expectations about future exercise patterns
and employment duration for the stock options grants.

Expected dividend rate. The expected dividend yield assumption is based on the fact that the Company has never paid cash dividends and has

no present intention to pay cash dividends.

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Note 9 - Stockholders’ Equity

Preferred Stock

The Company currently has  5,000,000 shares of preferred stock authorized.

Voting

Shares of preferred stock may be issued in one or more series, from time to time, with each such series to consist of such number of shares and
to have such voting powers relative to other classes or series of preferred stock, if any, or common stock, full or limited or no voting powers, and such
designations, preferences and relative, participating, optional or other special rights, and such qualifications, limitations or restrictions thereof, as shall be
stated in the resolution or resolutions providing for the issuance of such series adopted by the  Company’s  Board of Directors.

Common Stock

The Company currently has  75,000,000 shares of common authorized.

Voting

Each holder of a share of common stock is entitled to  one vote for each share of common stock.

Dividends

 Dividends may be declared and paid as and when determined by the Board of Directors and subject to any preferential dividend rights  of  any

then outstanding preferred stock.

Preemptive Rights.

The holders of common stock shall have no preemptive rights to subscribe for any shares of any class of stock of the Company whether now or

hereafter authorized.

Liquidation Rights

Upon the dissolution or liquidation of the Company, whether voluntary or involuntary, holders of the common stock will be  entitled to receive all

assets of the Company available for distribution to its stockholders, subject to any preferential rights of any then outstanding preferred stock.

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Index

Note 10 – Income Taxes

A reconciliation of the statutory U.S. federal income tax rate to the Company’s effective tax rate is as follows:

Federal statutory rate
State taxes
Extraordinary gain
Permanent differences
Research and development
State Taxes/Sale of NOL
Valuation Allowance
Other
Effective tax rate

December 31,

2021

2020

21.0%   
(13.0)%   
0.0%   
(8.9)%   
2.8%   
21.0%   
(1.8)%   
0.0%   
21.1%   

21.0%
6.7%
0.0%
(4.5)%
2.3%
– 
(27.1)%
1.6%
0.0%

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets were as follows:

Federal net operating losses
State net operating losses
Stock options
Federal tax credit
State tax credits
Amortization
Accrued expense
Depreciation
Lease liabilities
Other

Total gross deferred tax assets

Less valuation allowance
Deferred tax assets, net

Right of use asset

Total gross deferred tax liabilities

Deferred tax, net

106

December 31,

2021
22,831,097 
3,426,561 
1,374,830 
1,661,238 
410,089 
35,579 
4,665 
719,666 
137,838 
15,278 
30,616,841 
(30,516,318)
100,523 

(100,523)

(100,523)

 $

 $

 $

2020
19,757,859 
5,704,791 
1,687,123 
1,089,138 
752,791 
41,695 
352,642 
721,024 
171,543 
18,098 
30,296,704 
(30,142,744)
153,960 

(153,960)

(153,960)

– 

 $

– 

 $

 $

 $

 $

 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
 
 
 
 
 
   
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Index

In  assessing  the  realizability  of  the  net  deferred  tax  assets,  the  Company  considers  all  relevant  positive  and  negative evidence  to  determine
whether  it  is  more  likely  than  not  that  some  portion  of  the  deferred  income  tax  will  not  be  realized.  The  realization  of  the  gross  deferred  tax  assets  is
dependent  on  several  factors,  including  the  generation  of sufficient  taxable  income  prior  to  the  expiration  of  the  net  operating  loss  carryforwards.  At
December 31, 2021 and 2020, the Company has recorded a full valuation allowance against its net deferred tax assets of approximately $30.5 and $30.1
million respectively. The change in the valuation allowance during the year ended 2021 was approximately $0.4 million.

At December 31, 2021, the Company had federal net operating loss (“NOL”) carryforwards of approximately  $ 108.7  million.  At  December  31,
2021, the Company had federal research and development credit carryforwards of approximately $1.7 million. The federal net operating loss carryforwards
begin to expire in 2028, losses generated in 2018 or later will carry forward indefinitely. The federal credit carryforwards begin to expire in 2032. Section
382 and 383 of the Internal Revenue Code of 1986 subject the future utilization of net operating losses and certain other tax attributes, such as research
and  experimental  tax  credits,  to  an  annual  limitation  in  the  event  certain ownership  changes,  as  defined.  The  Company  may  be  subject  to  the  net
operating loss utilization provisions of Section 382 of the Internal Revenue Code.  The effect of an ownership change would be the imposition of an annual
limitation on the use of NOL carryforwards attributable to periods before the change.  The amount of the annual limitation depends upon the value of the
Company  immediately  before  the  change,  changes  to  the  Company’s  capital  during  a  specified  period prior  to  the  change,  and  the  federal  published
interest  rate.    Although  the  Company  has  not  completed  an  analysis  under  Section  382  of  the  Code,  it  is  likely  that  the  utilization  of  the  NOLs  will  be
limited.

At December 31, 2021, the Company had approximately $ 48.2 million of State of New Jersey NOLs which expire between  2029  and 2041. At
December 31, 2021, the Company had approximately $0.5 million of the State of New Jersey research development credits carryforwards.  The State of
New  Jersey  has  enacted  legislation  permitting  certain  corporations  located  in  New Jersey  to  sell  state  tax  loss  carryforwards  and  state  research  and
development  credits,  or  net  loss  carryforwards.  The  Technology  Business  Tax  Certificate  Transfer  Program  enables  qualified,  unprofitable  NJ-based
technology  or  biotechnology companies  with  fewer  than  225  US  employees  (including  parent  company  and  all  subsidiary)  to  sell  a  percentage  of  New
Jersey  NOLs  and  research  and  development  (“R&D”)  tax  credits  to  unrelated  profitable  corporations.  In  2021,  the  company  sold  New  Jersey  NOL
carryforwards  and  R&D  Credits,  resulting  in  the  recognition  of  $4.5  million  of  income  tax  benefit,  net  of  transaction  costs.    There  is  no  certainty  as  to
whether this program will continue.

Entities are also required to evaluate, measure, recognize and disclose any uncertain income tax provisions taken on their income  tax  returns.
The Company has analyzed its tax positions and has concluded that as of December 31, 2021, there were no uncertain positions. The Company’s U.S.
federal and state net operating losses have occurred since its inception in 2009 and as such, tax years subject to potential tax examination could apply
from that date because the utilization of net operating losses from prior years opens the relevant year to audit by the IRS and/or state taxing authorities.
Interest  and  penalties,  if  any,  as  they  relate  to  income  taxes  assessed,  are  included  in  the  income  tax  provision.  The  Company  did not  have  any
unrecognized tax benefits and has not accrued any interest or penalties for the years ended December 31, 2021 and 2020.

Note 11 – Commitments and Contingencies

Employment Matters

The Company has entered into employment agreements with each of its executive officers. The employment agreements generally provide for,
among other things, salary, bonus and severance payments. The employment agreements generally provide for between 12  months  and 24  months  of
severance benefits to be paid to an executive (as well as certain potential bonus, COBRA and equity award benefits), subject to the effectiveness of a
general release of claims, if the executive terminates his or her employment for good reason or if the Company terminates the executive’s employment
without  cause.  Such  severance  payments  may  be provided  90  days  prior  to  and  for  as  long  as 24  months  following  the  effective  date  of  a  change  in
control. The continued provision of severance benefits is conditioned on each executive’s compliance with the terms of the Company’s confidentiality and
invention and assignment agreement as well as his or her release of claims.

Rent

For  the  years  ended  December  31,  2021  and  2020,  rent  was  $ 185,195  and  $183,372,  respectively,  for  month-to-month arrangements  not

impacted by the adoption of ASC 842.

Legal Proceedings

On July 23, 2021, David R. Rosener, a purported stockholder of the Company, filed a putative class action and shareholder  derivative complaint
in  the  Court  of  Chancery  of  the  State  of  Delaware  (C.A.  No.  2021-0644  JRS)  against  the  Company  and  all  of  its  directors  and  certain  of  its  executive
officers. The plaintiff named all current directors of PDS as defendants as well as PDS’s Chief Scientific Officer and PDS’s Chief Medical Officer and also
named PDS as a nominal defendant. The plaintiff claimed PDS’s bylaws required tabulation of broker non-votes on Proposal 3 at the Company’s 2021
annual stockholder  meeting  held  on  June  17,  2021  (the  “2021  Annual  Meeting”),  which  sought  shareholder  approval  of  the  Second  Amended  and
Restated PDS Biotechnology Corporation 2014 Equity Incentive Plan (the “Restated Plan”). The complaint asserted claims for breach of fiduciary duties,
declaratory  judgment,  waste  of  corporate  assets  and  unjust  enrichment  in  connection  with  the  Restated  Plan  and  the  granting  of  an  aggregate  of
1,040,700  stock  options  to  certain  executive  officers  pursuant  to  the  Restated  Plan.  The  plaintiff  sought  unspecified  monetary  damages,  to  have  the
Restated Plan declared void, and recission of the grant of stock options as ultra vires. At the Special Meeting of Stockholders held on January 19, 2022,
the requisite stockholders of the Company voted to ratify the prior approval of the Restated Plan which was adopted at the 2021 Annual Meeting and the
stock options issued under the Restated Plan. Thereafter, on February 22, 2022, the plaintiff filed a notice of voluntary dismissal in the Court of Chancery
of the State of Delaware.

On or about December 27, 2021, Seth Van Voorhees, the former Chief Financial Officer of the Company, filed a Demand for  Arbitration against
the Company with the American Arbitration Association, asserting that he was wrongfully terminated. In his demand, Dr. Van Voorhees contends that his
alleged damages are expected to be no less than $3,000,000, plus interest, arbitration costs, attorneys’ fees and punitive damages. We have offered and
accrued $300,000 associated with this matter. The Company denies all alleged wrongful conduct and the Company is vigorously defending the matter.

The Company may be involved, from time to time, in legal proceedings and claims arising in the ordinary course of its business. Such matters are
subject to many uncertainties and outcomes are not predictable with assurance. While there can be no assurances as to the ultimate outcome of any legal
proceeding or other loss contingency involving the Company, management does not believe any pending matter will be resolved in a manner that would
have a material adverse effect on its financial position, results of operations or cash flows.

107

Index

Note 12 – Retirement Plan

The Company has a 401(k) defined contribution plan for the benefit for all employees and permits voluntary contributions by employees subject to
IRS-imposed  limitations.  The  401(k)  employer  contribution  for  the  years  ended  December  31,  2021  and  2020  plan  years  were  $35,747  and  $19,967
respectively.

Note 13 – Subsequent Events

On January 19, 2022, the Company granted an option to purchase  765,605 shares of common stock to the management and employees of the
Company with a strike price of $6.28  vesting 25%  on  the first  anniversary  and  the  remaining  vesting  in  equal  monthly  installments  thereafter  until  fully
vested.  Included in the above mentioned grant, the Company granted an option to purchase 291,500, 112,200 and 88,600 to its Chief Executive Officer,
Chief Scientific Officer and its Chief Medical Officer, respectively.

108