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Salarius Pharmaceuticals

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FY2021 Annual Report · Salarius Pharmaceuticals
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
———————–––––—————————
FORM 10-K
————————————

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

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

For the Transition Period from                                  to

For the fiscal year ended December 31, 2021
OR

Commission File Number: 001-36812
——————————————
SALARIUS PHARMACEUTICALS, INC.
(previously known as Flex Pharmaceuticals, Inc.)
(Exact name of Registrant as Specified in Its Charter)
———————————————————

Delaware
(State or Other Jurisdiction of
Incorporation or Organization)

46-5087339

(I.R.S. Employer
Identification No.)

2450 Holcombe Blvd., Suite X, Houston, TX 77021
(Address of principal executive offices)(Zip Code)

Registrant's Telephone Number, Including Area Code: (832) 834-6992
Securities registered pursuant to Section 12(b) of the Act:

Title of each class
Common Stock, par value $ 0.0001

Trading Symbol(s)
SLRX

Name of each exchange on which registered
The Nasdaq Stock Market LLC

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

Indicate by check mark if the registrant is a well-known seasoned issuer as defined in Rule 405 of the Securities Act. Yes ☐ No ☒
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act.
Yes ☐ No ☒
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding
12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to the filing requirements for the past 90 days. Yes ☒ No ☐

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

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth
company. See the definitions of large accelerated filer, accelerated filer, smaller reporting company, and emerging growth company in Rule 12b-2 of the Exchange Act.
Large Accelerated Filer
Non-accelerated Filer
Emerging Growth Company

Accelerated Filer
Smaller Reporting Company

☐
☒

☐
☒
☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial
accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial
reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act.) Yes ☐ No ☒
The aggregate market value of the common stock of the registrant held by non-affiliates of the registrant is $47,291,038 based on a share price of $1.06 which is the closing
price per share on June 30, 2021.

As of March 18, 2022, there were 46,697,194 shares of common stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE:
Portions of the registrant’s definitive proxy statement for its 2021 Annual Meeting of Stockholders, which will be filed with the United States Securities and Exchange
Commission within 120 days of December 31, 2020, are incorporated by reference into Part III of this Annual Report on Form 10-K.

 
Table of Contents

SALARIUS PHARMACEUTICALS, INC.

TABLE OF CONTENTS

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

Special Note Regarding Forward Looking Statements
Summary of Selected Risks associated with our business
PART I.
Item 1.
Item 1A.
Item 1B.
Item 2.
Item 3.
Item 4.
Part II
Item 5.
Item 6.
Item 7.
Item 7A.
Item 8.

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
Reserved
Management’s Discussion and Analysis of Financial Condition and Results of Operations Overview
Quantitative and Qualitative Disclosure About Market Risk
Financial Statements and Supplementary Data

Index to Financial Statements
Report of Independent Registered Public Accounting Firm
Consolidated Balance Sheets
Consolidated Statements of Operations
Consolidated Statements of Cash Flows
Consolidated Statement of Stockholders' Equity (Deficit)
Notes to Consolidated Financial Statements

Item 9.
Item 9A.
Item 9B.
Part III
Item 10.
Item 11.
Item 12.
Item 13.
Item 14.
Part IV
Item 15.
Item 16.
SIGNATURES

Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
Controls and Procedures
Other Information

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

Exhibits, Financial Statement Schedules
Form 10-k Summary

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SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

The  information  in  this  Annual  Report  on  Form  10-K,  including  in  the  sections  entitled  “Business,”  and  “Management’s  Discussion  and
Analysis of Financial Condition and Results of Operations Overview,” and the information incorporated herein by reference, include forward-
looking  statements  within  the  meaning  of  Section  27A  of  the  Securities  Act  of  1933,  as  amended,  and  Section  21E  of  the  Securities
Exchange  Act  of  1934,  as  amended.  These  are  statements  that  include,  but  are  not  limited  to,  statements  about  future  periods;  the
Company's  strategy  and  ongoing  development  programs;  the  Company's  clinical  trials,  including  status,  costs  and  expectations  related
thereto;  the  Company's  strategic  collaborations  and  license  agreements,  intellectual  property,  FDA  approval  process  and  government
regulation;  the  potential  for  seclidemstat  to  target  the  epigenetic  dysregulation  underlying  Ewing  sarcoma  and  advanced  solid  tumors
including, but not limited to, prostate, breast, ovarian, melanoma, colorectal and other cancers; expected timing and results of clinical studies;
the nature, strategy and focus of the company; the development and commercial potential of any product candidates; the Company's liquidity
position and need for additional financing; the ability of the Company to access additional financing under the Grant Contract with Cancer
Prevention and Research Institute of Texas; and the Company's ability to continue as a going concern. These forward-looking statements are
based on current expectations and beliefs and involve numerous risks and uncertainties, including those discussed under “Risk Factors,” that
could cause actual results to differ materially from expectations. These forward-looking statements should not be relied upon as predictions
of future events as we cannot assure you that the events or circumstances reflected in these statements will be achieved or will occur. When
used in this report, the words “believe,” “may,” “could,” “will,” “estimate,” “continue,” “anticipate,” “intend,” “expect,” “indicate,” “seek,” “should,”
“would,” “aim,” “target” and similar expressions are intended to identify forward-looking statements, though not all forward-looking statements
contain these identifying words. All statements, other than statements of historical fact, are statements that could be deemed forward-looking
statements.

If any of these risks or uncertainties materializes or any of these assumptions proves incorrect, our results could differ materially from the
forward-looking statements in this report. All forward-looking statements in this report are current only as of the date of this report. We do not
undertake  any  obligation  to  publicly  update  any  forward-looking  statement  to  reflect  events  or  circumstances  after  the  date  on  which  any
statement is made or to reflect the occurrence of unanticipated events.

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SUMMARY OF SELECTED RISKS ASSOCIATED WITH OUR BUSINESS

Our business is subject to numerous risks and uncertainties, including those discussed at length in the section titled “Risk Factors.”

These risks include, among others, the following:

Risks Related to the Development of our Product Candidates

• Our approach to discovering and developing novel oncology therapeutics makes it difficult to predict timing and costs and obtaining

•

regulatory approval may never lead to marketable products.
Product  development  involves  a  lengthy  and  expensive  process  with  an  uncertain  outcome,  and  results  of  earlier  pre-clinical  and
clinical trials may not be predictive of future clinical trial results.

• Clinical trials are costly, time consuming and inherently risky, and we may fail to demonstrate safety and efficacy to the satisfaction of
applicable regulatory authorities or our product candidates may cause undesirable side effects or have other properties that could
limit the commercial viability or result in significant negative consequences.

• We cannot give any assurance that our clinical trials will generate positive data for any of our product candidates or indications which

we are pursuing.

• We may fail to capitalize on programs or product candidates that may be more profitable.
• We may find it difficult to enroll patients in our clinical trials.
• We may face potential product liability and incur substantial liability and costs and our regulatory approvals, if any, could be revoked

or otherwise negatively impacted.

Risks Related to our Financial Condition and Capital Requirements

• We have incurred significant losses since our inception and anticipate that we will continue to incur losses for the foreseeable future
which, together with our limited working capital and lack of revenue from product sales, raises substantial doubt about our financial
viability and as to whether we will be able to continue as a going concern.

• Raising additional capital may cause dilution to our stockholders restrict our operations or other rights.

Risks Related to Regulatory Approval of our Product Candidates and Other Legal Compliance Matters

•

Fast Track designation may not actually lead to a faster development or regulatory review or approval process. Additionally, FDA
may rescind the designation if it determines the product candidate no longer meets the qualifying criteria for Fast Track.

• We may fail to obtain the necessary regulatory approvals to market our product candidates and may not be able to commercialize

•

our product candidates.
Even if we obtain regulatory approval for a product, we will remain subject to ongoing regulatory requirements, we may be subject to
penalties if we fail to comply with regulatory requirements.

• Healthcare reform measures may have a material adverse effect on our business, financial condition or results of operations.
• We may be subject to fraud and abuse laws, false claims laws, and health information privacy and security laws under which we

could become subject to substantial penalties.

• Reliance on government funding for our programs may add uncertainty to our research and commercialization efforts and may

impose requirements that limit our ability to take specified actions.

Risks Related to our Intellectual Property

• We may not be successful in obtaining or maintaining exclusive or other necessary rights to our targets, product compounds and

processes for our development pipeline.

• We may not have sufficient patent term protections for our product candidates to protect our business.

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• Changes in U.S. patent law could diminish the value of patents in general and could increase the uncertainties and costs surrounding

•
•
•

prosecution and enforcement.
Third-party claims of intellectual property infringement may prevent or delay our development and commercialization efforts.
The patent protection and patent prosecution for some of our product candidates is dependent on third parties.
If we fail to comply with obligations in the agreements under which we licenses intellectual property and other rights from third parties
or otherwise experience disruptions to our business relationships with our licensors, we could lose license rights that are important to
our business.

• We may be involved in lawsuits to protect or enforce our patents or the patents of our licensors, which could be expensive, time

consuming, and unsuccessful.

Risks Related to our Reliance on Third Parties

•

If third parties on which we rely fail to obtain or maintain approval of government regulators, fail to comply with applicable regulations,
fail to provide us with sufficient quantities of drug product, or fail to do so at acceptable quality levels or prices, we may not be able to
successfully complete clinical development, obtain regulatory approval or commercialize our product candidates and our business
could be substantially harmed.

• We may be unable to realize the potential benefits of any current or future collaboration.
•

If we are required to indemnify third parties pursuant to the terms of any third party agreements, it could have a material adverse
effect on our business, financial condition and results of operations.

Risks Related to Commercialization of our Product Candidates

• We currently have very limited marketing and sales experience. Without the assistance of third parties, we may be unable to

generate any revenue.

• We may be unable to form future collaborations with respect to our product candidates, which may cause us to alter our development

•

and commercialization plans.
If the market opportunities for our product candidates are smaller than we believe they are, we may not meet our future revenue
expectations and our business may suffer.

• Our competitors may discover, develop or commercialize products faster or more successfully than us.
•

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

• We may not be successful in any efforts to identify, license, discover, develop, or commercialize additional product candidates.

Risks Related to our Business Operations

• Our future success depends in part on our ability to retain key personnel and attract, retain, and motivate other qualified personnel.
• We will need to expand our organization and difficulties in managing growth could disrupt our operations.

Risks Related to Our Common Stock

•
•

The terms of the warrants could impede our ability to enter into transactions or obtain additional financing.
Future sales of a significant number of our shares of common stock in the public markets, or the perception that such sales could
occur, could depress the market price of our shares of our common stock.

• We do not currently intend to pay dividends on our common stock.
•

Failure to meet the continued listing requirements of the Nasdaq Stock Market, LLC could result in the delisting of our common stock.

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Item 1. Business

Part I

References  to  “Salarius,”  the  “Company,”  “we,”  “us”  and  “our”  refer  to  Salarius  Pharmaceuticals,  Inc.  and  its  consolidated  subsidiaries
following the completion of the Merger and Salarius Pharmaceuticals, LLC prior to the completion of the Merger. References to “Notes” refer
to the Notes to Consolidated Financial Statements included herein (refer to Item 8).

Overview

Salarius  Pharmaceuticals,  Inc.  is  a  clinical-stage  biopharmaceutical  company  focused  on  developing  effective  treatments  for  cancers  with
high, unmet medical need. Specifically, we are developing treatments for cancers caused by dysregulated gene expression, i.e., genes which
are  incorrectly  turned  on  or  off.  We  are  developing  two  classes  of  drugs  that  address  gene  dysregulation:  epigenetic  drugs  and  targeted
protein  degraders.  Our  technologies  have  the  potential  to  work  in  both  liquid  and  solid  tumors.  Our  current  pipeline  consists  of  two
compounds: 1) seclidemstat (SP-2577), a small molecular inhibitor and 2) SP-3164, a small molecular protein degrader.

Recent Events

On January 12, 2022, we entered into an Acquisition and Strategic Collaboration Agreement (the “ASCA”), effective January 12, 2022, with
DeuteRx, LLC, a Delaware limited liability company (the “DeuteRx”), pursuant to which DeuteRx agreed to sell, and we agreed to purchase
and assume from DeuteRx, all of DeuteRx’s rights, title, and interest in and to certain assets of DeuteRx, including the development product
previously referred to as DRX-164, DeuteRx’s intellectual property, information and data related to the Product, tangible materials or reagents
related  to  the  Product,  goodwill,  rights  and  claims,  other  than  certain  excluded  assets  (collectively,  the  “Purchased  Assets”),  all  as  more
specifically set forth in the ASCA (the “DeuteRx Transaction”). Contemporaneous with the execution of the ASCA, the Seller and us entered
into an R&D Services Agreement(the “R&D Services Agreement”), which sets forth the terms and conditions upon which Seller will provide
services to us, including the implementation and performance of a Non-Clinical and Clinical Development Scope of Work. Subsequent to the
purchase, we changed the name from DRX-164 to SP-3164.

Current Assets

SP-2577

SP-2577  is  a  small-molecule  LSD1  inhibitor  with  a  novel  scaffold.  The  molecule  was  discovered  using  structure-based  computational
screening coupled with chemical screening and further optimization with structure-activity relationship studies.

We believe that SP-2577 is different from the three other LSD1 inhibitors that have active clinical development programs because in addition
to  inhibiting  LSD1’s  enzymatic  activity,  we  also  believe  it  more  comprehensively  inhibits  LSD1’s  scaffolding  properties.  To  the  best  of  our
knowledge, SP-2577 is one of two reversible LSD1 inhibitors in clinical development. The two other LSD1 inhibitors in clinical development
are irreversible inhibitors. SP-2577 has differentiated properties that may allow it to be developed in a broader range of cancer indications
and  in  different  combination  regimens  compared  to  the  other  LSD1  inhibitors  in  clinical  development.  Thus  far,  dose  escalation  data  has
demonstrated that SP-2577 has a manageable safety profile. Pharmacokinetic data indicates that SP-2577 can be given at dose levels that
achieve  drug  exposure  levels  in  patients  above  where  activity  was  demonstrated  in  preclinical  studies.  We  believe  that  SP-2577’s
manageable safety profile will allow for more flexible dosing strategies by potentially having a wide therapeutic window. This is being studied
and developed in our ongoing clinical program.

LSD1 Background

LSD1 is an enzyme that is, in part, responsible for epigenetic regulation of genes that support cancer growth. According to B. Majello, et al. in
“Expanding  the  Role  of  the  Histone  Lysine-Specific  Demethylase  LSD1  in  Cancer”,  LSD1  dysregulation  is  a  key  driver  in  multiple
malignancies.  LSD1  induces  a  cancer  phenotype  through  its  enzymatic  activity  and  through  its  role  as  a  scaffolding  protein  in  epigenetic
complexes. LSD1 is over-expressed in

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various cancers, and higher levels of LSD1 are often associated with poor prognosis in several types of cancer, making LSD1 inhibition an
area of interest in cancer research.

SP-3164

SP-3164  is  a  next-generation  cereblon  (CRBN)  binding  molecular  glue.  Molecular  glues  are  small  molecules  that  commandeer  the  body’s
normal protein degradation processes by causing proteins to stick to one another thereby inducing selective degradation of cancer-causing
proteins.  Derived  from  avadomide,  SP-3164  is  engineered  using  DECS  (deuterium-enabled  chiral  switching),  a  process  that  replaces
hydrogen  atoms  with  deuterium  to  stabilize  the  molecule’s  active  enantiomer,  resulting  in  a  novel  molecular  entity  with  the  potential  for
increased  efficacy  and  improved  safety  compared  to  the  1st  generation  compound.  SP-3164  degrades  transcription  factors  IKZF1  and
IKZF3, along with other proteins, resulting in both direct anti-cancer activity and immune-modulating properties. SP-3164 has activity in both
hematologic and solid tumors and is currently in IND-enabling studies.

Targeted Protein Degradation

The field of Targeted Protein Degradation (TPD) is rapidly growing and attracting a lot of interest from the biggest pharmaceutical companies.
The two most common types of protein degraders are molecular glues (MGs) and proteolysis-targeting chimeras (PROTACs). SP-3164 is a
next-generation CRBN-binding MG. There are currently seven MGs in clinical development (see table below) and a few additional MGs in
IND-enabling studies. Due to structural similarities (aminoglutarimide moiety), most MGs cause degradation of hematopoietic lineage factors,
Ikaros and Aiolos, making them attractive agents for the treatment of hematological malignancies. However, based on a compound’s overall
structure,  differences  in  depth  and  efficiency  of  Ikaros  and  Aiolos  degradation,  as  well  as  degradation  of  other  proteins,  e.g.,  GSPT1  or
PDE6E,  give  individual  MGs  different  therapeutic  activities.  Antitumor  activity,  immunomodulation  capabilities,  possible  combinations
strategies as well as the safety profile are all dependent on the select proteins degraded and extent of degradation.

Compound Name

Company

Main Protein Targets

Iberdomide (CC-220)
CC-90009
Mezigdomide (CC-92480)
CC-99282
CFT7455
DKY709
BTX-1188

Program Development

Bristol Myers Squibb (BMS)
BMS
BMS
BMS
C4 Therapeutics
Novartis
BioTheryX

Ikaros/Aiolos (I/A)
GSPT1, I/A
I/A
I/A
I/A
Helios
GSPT1, I/A

Indications
(Phase of development)

MM (Phase 2), NHL (Phase 1/2)
MDS and AML (Phase 1*)
R/R MM and ND MM (Phase 1/2)
NHL (Phase 1/1b), CLL (Phase 1)
NHL and MM (Phase 1)
AST (Phase 1)
AST, NHL and AML (Phase 1)

Our goal is to develop SP-2577 and SP-3164 for treatment of cancers while attempting to maximize return for investors. To achieve this goal,
our strategy consists of a two-pronged approach: 1) speed-to-market by developing SP-2577 and SP-3164 in high unmet need indications
and 2) expand the market by developing SP-2577 and SP-3164 in larger market indications.

Development of SP-2577 in Ewing Sarcoma Patients

Ewing sarcoma is a rare pediatric cancer with a lack of treatment options. The U.S. Food and Drug Administration ("FDA") has put in place
several different types of incentives for companies pursuing therapeutic treatments for such conditions. We have benefited from several of
these incentives, including SP-2577’s orphan status designation and designation as a potential treatment for a “rare pediatric disease.” This
means  that  if  proven  efficacious  with  a  benefit-risk  profile  that  the  FDA  judges  to  be  positive  and  supportive  of  approval,  SP-2577  could
qualify for priority review and to receive a priority review voucher ("PRV"), although there can be no assurance that we will be able to do so. If
received,  we  would  have  the  ability  to  sell  the  PRV  to  other  qualifying  pharmaceutical  companies.  Additionally,  in  December  2019  we
announced  that  SP-2577  had  been  granted  Fast  Track  Designation  by  the  FDA  for  the  treatment  of  relapsed/refractory  Ewing  sarcoma
patients.  Fast  Track  is  a  process  designed  by  the  FDA  to  expedite  the  development  and  review  of  new  drugs  with  the  potential  to  treat
serious or life-threatening conditions

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and  fill  unmet  medical  needs.  The  aim  is  to  streamline  the  drug  development  and  review  process  by  allowing  for  more  frequent
communications  with  the  agency  to  assure  that  questions  and  issues  are  resolved  quickly,  which  often  leads  to  earlier  drug  approval  and
access by patients. We initiated a Phase 1/2 clinical trial in the third quarter of 2018 and in the first quarter of 2021 we announced that the
recommended Phase 2 dose (RP2D) had been established and the dose expansion phase of the trial would begin. We also announced that
we will be combining SP-2577 with a commonly administered 2  and 3  line regimen, topotecan and cyclophosphamide. We hope that this
modification will allow us to treat patients earlier in the continuum of care, increase the potential addressable patient population, and facilitate
patient access to SP-2577. Additional clinical trials of SP-2577 will be necessary to receive FDA approval.

nd

rd

Disease background: Ewing sarcoma is a devastating pediatric and young adult cancer for which there are no approved targeted therapies.
The cause of Ewing sarcoma is a chromosomal translocation involving the Ewing sarcoma breakpoint region 1 (“EWSR1”) gene and ETS
family genes, resulting in expression of a fusion oncoprotein. The resulting oncoprotein has been found to co-localize with LSD1 throughout
the genome, making LSD1 an attractive therapeutic target for Ewing sarcoma. Based on data from the National Institute of Health (“NIH”) and
physician collaborators, we believe there are approximately 500 Ewing sarcoma patients diagnosed annually in the United States. Current
treatment for Ewing sarcoma consists of an intensive chemotherapy regime, radiation and often disfiguring surgeries. Due to the harshness
of  current  treatment  options,  children  and  adolescents  often  experience  long-term  side  effects  such  as  slowed  growth  and  development,
learning problems and an increased risk of developing second cancers. According to published literature, including “Management of recurrent
Ewing sarcoma: challenges and approaches” by David Van Mater and Lars Wagner, patients with overt metastasis (20-30% of patients) or
recurrent disease (~20%) have poor prognosis, with less than a 30% chance of experiencing disease-free survival, and there is currently not
a standardized treatment available for recurrent Ewing sarcoma. These are the patients that we aim to help.

Development of SP-2577 in Ewing-related Sarcoma (FET-translocated Sarcoma) Patients

Based on SP-2577’s proposed mechanism of action, preclinical data, and clinical data from our Advanced Solid Tumor trial (see below), we
announced  that  we  expanded  the  Ewing  sarcoma  dose  expansion  trial  to  include  a  cohort  of  Ewing-related  sarcomas  (also  referred  to  as
FET-translocated sarcomas). These sarcomas, like Ewing sarcoma, are caused by a chromosomal translocation that involves the FET-family
of  genes  (EWSR1,  FUS,  or  TAF15)  which  are  also  found  to  co-localize  with  LSD1.  Sarcomas  of  this  type  include  myxoid  liposarcoma,
desmoplastic small round cell tumors, clear cell sarcoma and several other sarcoma subtypes. We believe that there are approximately 1,500
patients with FET-translocated sarcomas diagnosed each year in the United States. Of these, 20-40% are advanced stage patients with a 30-
50% 5-year survival. Current treatments are rarely curative and only delay disease progression on average for ~5 months.

Development of SP-2577 in FET-translocated sarcomas provides us with additional paths to SP-2577's approval. In addition, because FET-
translocated  sarcomas  are  orphan  diseases,  many  of  the  regulatory  incentives  for  pursuing  Ewing  sarcoma  may  also  apply  to  FET-
translocated  sarcomas.  In  our  ongoing  Phase  1/2  trial,  we  will  enroll  up  to  30  patients  with  FET-translocated  sarcomas.  Fifteen  of  the  30
patients will be of the myxoid liposarcoma subtype, which is the most common of the FET-translocated sarcoma according to current data.
Hence, we will be treating three patient groups across Ewing and Ewing-related sarcomas, each with a potential path to regulatory approval
and commercial opportunity. Additional clinical trials will be necessary to receive FDA approval.

Expand SP-2577 Market by Pursuing Large Market Indications

As LSD1 can interact with over 60 regulatory proteins other than FET-fusion oncoproteins, we believe that LSD1 may also play a critical role
in progression of various other cancer types. Preliminary efficacy data from our previous Phase 1/2 Advanced Solid Tumor trial supported
this  notion  and  work  is  ongoing  to  identify  large  market  solid  tumor  indications  with  the  highest  potential  for  SP-2577  success.  Continued
progress in this area will support the market expansion portion of our strategy.

In addition to solid tumors, SP-2577 has shown promising preclinical activity in hematologic cancers. In 2021 we announced the initiation of
an Investigator Initiated Trial studying SP-2577 in combination with azacitidine for the treatment of patients with myelodysplastic syndromes
(MDS) or chronic myelomonocytic leukemia (CMML). Myelodysplastic syndromes can progress into Acute Myeloid Leukemia (AML) and data
from our ongoing trial intent to inform development of SP-2577 in hematologic cancers (also referred to as “liquid tumors" or "blood cancer”),

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including AML. The American Cancer Society estimates there were almost 20,000 new cases of AML in the US alone in 2020.

Recent data from “LSD1 Ablation Stimulates Anti-tumor Immunity and Enables Checkpoint Blockade” by W. Sheng, et al. and “Inhibition of
Histone Lysine-specific Demethylase 1 Elicits Breast Tumor Immunity and Enhances Antitumor Efficacy of Immune Checkpoint Blockade” by
Y. Qin, et al. suggests that LSD1 plays a role in tumor immune activity and can sensitize tumors to checkpoint inhibitors. These works have
sparked interest in combining LSD1 inhibitors with checkpoint inhibitors. We are conducting preclinical work with SP-2577 in this area.

The following figure lists our programs and their respective stages of development:

SP-3164 Development

Our  plan  is  to  develop  SP-3164  in  high  unmet  need  hematological  and  solid  tumor  indications.  SP-3164's  development  in  hematological
indications leverages clinical safety and efficacy data demonstrated by avadomide in hematological malignancies (e.g., Diffuse Large B cell
Lymphoma, Follicular Lymphoma) across several clinical trials. SP-3164 is the stabilized, active S-enantiomer of avadomide, which exists as
a 1:1 ratio of the S and R enantiomers. However, only the S-enantiomer is the active, anti-cancer species. Therefore, because SP-3164 is
the  stabilized  S-enantiomer,  it  has  the  potential  to  show  improved  therapy  and  safety  over  avadomide.  This  was  demonstrated  in  early
preclinical mouse models of multiple myeloma. In addition to having a clear development path in hematological cancers, we believe SP-3164
also  has  potential  in  solid  tumors.  We  are  conducting  preclinical  work  to  identify  the  most  promising  indications  and  combinations  for  SP-
3164's development in solid tumors.

SP-3164 Competitive Differentiation

Although SP-3164 is currently in IND-enabling studies, we believe it has a higher chance of approval than other similar stage assets due to
the extensive preclinical and clinical studies with the first-generation compound, avadomide. Furthermore, compared to MGs currently on the
market  including  Revlimid®  and  Pomalyst®,  SP-3164  has  potential  to  show  a  more  robust  degradation  of  Ikaros  and  Aiolos,  improved
immunomodulatory effects, and differential profile of proteins degraded, based on avadomide data.

Clinical Trials

Ewing Sarcoma and Ewing-Related Sarcoma

We  are  conducting  a  multi-site,  open-label  Phase  1/2  trial  of  SP-2577  for  treatment  of  patients  with  relapsed/refractory  Ewing  sarcoma  or
Ewing-related  sarcoma  (also  referred  to  as  FET-translocated  sarcoma).  Patients  must  have  histologic  confirmation  of  Ewing  sarcoma  or
Ewing-related sarcoma that is refractory or recurrent and must

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have received one prior course of therapy for the disease. Among other inclusion criteria, patients must be 12 years or older and have a life
expectancy of greater than 4 months.

The primary objectives of this clinical trial are to study the safety and tolerability of SP-2577. Secondary objectives include pharmacokinetic
assessment, food effects on drug pharmacokinetics, determination of the maximum tolerated dose (“MTD”) and assessment of preliminary
signs of anti-tumor activity. Additionally, the trial will explore the use of circulating tumor cells (“CTCs”), cell-free DNA (“cfDNA”), Hemoglobin
F and changes in molecular signatures of the tumor as pharmacodynamic markers of disease burden, drug effect and tumor response.

In February 2021, we announced that we reached the recommended phase 2 dose and would initiate the dose expansion portion of the trial.
Ewing sarcoma patients will be treated in combination with topotecan/cyclophosphamide. FET-translocated sarcoma patients will be treated
with single-agent SP-2577.

We have thirteen active sites enrolling patients across the United States in our Phase 1/2 trial of SP-2577 for treatment of Ewing sarcoma
and FET-translocated sarcoma.

Hematological Cancers

In June 2021 we announced the initiation of an Investigator Initiated Trial studying SP-2577 in combination with azacitidine for the treatment
of  patients  with  myelodysplastic  syndromes  (MDS)  or  chronic  myelomonocytic  leukemia  (CMML).  The  Phase  1/2  trial  will  be  led  by  Dr.
Guillermo Montalban-Bravo from the Department of Leukemia at The University of Texas MD Anderson Cancer Center. The dose-escalation
stage  of  the  Phase  1/2  trial  will  enroll  patients  aged  18  and  older  with  MDS  or  CMML.  Patients  will  receive  75  mg/m2  of  azacitidine,
administered intravenously (IV) or subcutaneously (SC), on days one through seven of each 28-day cycle in combination with an escalating,
twice-daily  dose  of  seclidemstat  administered  as  an  oral  tablet.  Once  the  MTD  of  the  combination  is  determined  by  the  Safety  Review
Committee,  the  dose-expansion  stage  is  planned  that  will  include  additional  patients  to  confirm  the  safety  and  tolerability  profile  for
seclidemstat in combination with azacitidine and capture efficacy data regarding overall response rate, duration of response, leukemia-free
survival, relapse-free survival, and overall survival.

Ongoing Development Programs

In  addition  to  the  aforementioned  clinical  trials,  we  are  exploring  other  opportunities  with  SP-2577,  in  combination  with  immunotherapy
agents  (checkpoint  inhibitors),  which  include  patients  with  select  tumor  mutations  and,  in  combination  with  anti-cancer  treatment  in
hematological malignancies.

Recent preclinical studies demonstrated that LSD1 inhibition has the potential to sensitize refractory patients to checkpoint inhibitors. While
checkpoint inhibitors have been successful in a subset of patients, they remain ineffective in a large portion of cancer patients. Considering
that the checkpoint inhibitor market is already a multibillion-dollar market, drugs that can be used to increase the clinical benefit of checkpoint
inhibitors  are  attractive.  Importantly,  recent  data  shows  that  certain  mutations  in  chromatin  modifying  complexes  (e.g.  mutations  in  the
SWI/SNF  complex)  could  increase  tumor  sensitivity  to  LSD1’s  immunomodulatory  effects.  We  are  currently  assessing  the  potential  of  SP-
2577 to be combined with checkpoint inhibitors through ongoing and planned studies.

Strategic Agreements

Listed below are the strategic agreements that may have an impact on our results of operations:

The University of Utah Research Foundation

On  August  3,  2011,  we  entered  into  an  Exclusive  License  Agreement  with  the  University  of  Utah  Research  Foundation  (the  “University  of
Utah”),  for  the  exclusive  license  with  respect  to  patent  rights  protecting  SP-2577  and  related  compounds.  The  patent  rights  were  for  a
provisional patent. The term of agreement is until the last-to-expire of the patent rights licensed under the agreement, which is expected to be
as late as 2037, unless otherwise terminated by law or by the parties pursuant to the agreement.

In  further  consideration  of  the  rights  granted  by  the  University  of  Utah,  we  agreed  to  pay  all  past  patent  expenses  incurred  in  filing  and
prosecuting  the  patent  application,  and  pay  all  future  patent  expenses  incurred  including  filing,  prosecuting,  enforcing  and  maintaining  the
patent right.

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Under  the  terms  of  the  agreement,  we  may  be  obligated  to  make  certain  future  milestone  and  royalty  payments,  including:  (i)  an  earned
royalty payment based on a single digit percentage of net sales and a required minimum annual royalty payment commencing with the third
full calendar year after the first commercial sale in the U.S., Germany, France, Japan or the U.K. ranging from $10,000 to $40,000 per year
which  minimum  payments  are  fully  creditable  towards  the  earned  royalty  payment  with  respect  to  the  relevant  calendar  year,  (ii)  a
sublicensee fee based on a single digit percentage of revenues received by sublicensees, (iii) milestone payments in agreed dollar amounts
upon receiving regulatory approvals allowing the marketing and sale of licensed products or licensed methods relating to the patients’ rights
in  each  of  the  U.S.,  the  European  Union  and  Japan  not  exceeding  $150,000  in  the  aggregate  and  (iv)  a  milestone  payment  in  an  agreed
dollar amount upon the two year anniversary of the first commercial sale of a licensed product not exceeding $1.0 million.

Either  party  has  a  right  to  terminate  the  agreement  for  a  breach  of  or  default  under  the  agreement  following  a  60-day  cure  period.  If  we
ceases to carry on our business with respect to the patent right granted under the agreement, the University of Utah has a right to terminate
the agreement upon 60 days’ notice. In addition, we may terminate the agreement at any time upon ninety days’ notice to the University of
Utah.

Cancer Prevention and Research Institute of Texas

In June 2016, we entered into a Cancer Research Grant Contract with Cancer Prevention and Research Institute of Texas (“CPRIT”). The
grant contract was for an amount up to $18.7 million to fund the development of LSD-1 inhibitor. The grant was subsequently amended to
remove  $2.6  million  related  to  a  discontinued  prostate  cancer  program.  This  is  a  3-year  grant  award  which  originally  expired  on  May  31,
2019. The grant now expires on May 31, 2022.

Under the agreement, we must provide matching funds equal to 50% of the funds provided by CPRIT. We must make a good faith effort to
spend at least 50% of the CPRIT and matching funds within the State of Texas with Texas-based employees or contractors.

Upon  commercialization  of  SP-2577,  and  if  our  revenue  is  above  a  specified  dollar  threshold,  we  will  be  required  to  pay  1.0%  of  such
revenue during the revenue term until CPRIT receives an amount equal to a single digit multiple of the total grant award. The revenue term is
determined on a country by country basis as revenue during the period beginning on the date of the first commercial sale of a product or
service until there no longer exists any exclusivity for a commercial product or service in such country, which may be as late as 2037. In the
event CPRIT receives such specified percentage of the total grant award from us during the revenue term, we will continue to pay CPRIT a
reduced revenue sharing percentage during the remainder of the revenue term. Additionally, if we are required to obtain a license under the
intellectual property rights of one or more third parties in order to sell commercial products in any given country, then the revenue sharing
percentages may be reduced.

The agreement may be terminated by the mutual consent of the parties or by us at our discretion. CPRIT may also terminate the agreement
upon an event of default, which includes our failure to conduct the project within the scope agreed by the parties, our material breach of the
agreement, our failure to comply with applicable law, or bankruptcy or discontinuation of our business operations, among others. In addition,
the agreement may be terminated by CPRIT if the allocated funds become legally unavailable during the term and CPRIT is unable to obtain
additional funds for such purposes. If CPRIT terminates the agreement prior to the expiration due to an event of default or if we terminate the
agreement, CPRIT may require us to repay some or all of the disbursed grant.

DeuteRX, LLC

On January 12, 2022, we entered into the ASCA with DeuteRx, LLC, pursuant to which we acquired the Purchased Assets.

The Purchased Assets were purchased for an aggregate purchase price of $1,500,000 and the delivery of one million (1,000,000) shares of
our common stock. We also agreed to pay to Seller (i) milestone payments upon the occurrence of certain events and (ii) royalty payments.
All cost related to the transaction will be immediately expensed in 2022 as acquired in-process research and development expenses since
SP-3164  has  not  yet  achieved  regulatory  approval  and,  absent  obtaining  such  approval,  has  no  alternative  future  use.  A  member  of  the
Company’s Board of Directors also serves as a consultant to the Seller and is employed by an affiliate of the Seller.

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Simultaneously with our entry into the ASCA, we and DeuteRX entered into the R&D Services Agreement, which sets forth the terms and
conditions  upon  which  DeuteRx  will  provide  services  to  us,  including  the  implementation  and  performance  of  a  Non-Clinical  and  Clinical
Development Scope of Work.

Manufacturing

We do not own or operate manufacturing facilities for the production of SP-2577 or our other product candidates, nor do we have plans to
develop our own manufacturing operations in the foreseeable future. We currently depend on third-party contract manufacturers for all our
required  raw  materials,  active  pharmaceutical  ingredients,  and  finished  product  candidates  for  our  clinical  trials.  We  currently  employs
internal resources and third-party consultants to manage our manufacturing contractors.

Sales and Marketing

We have not yet defined our sales, marketing or product distribution strategy for SP-2577 or any of our other product candidates because our
product  candidates  are  still  in  pre-clinical  or  early-stage  clinical  development.  Our  commercial  strategy  may  include  the  use  of  strategic
partners, distributors, a contract sale force, or the establishment of our own commercial and specialty sales force. We plan to further evaluate
these alternatives when and if we approach FDA approval for one of our product candidates.

Intellectual Property

As of December 31, 2021, we had a worldwide portfolio of 71 patents and patent applications of which 64 were issued or allowed and 7 are
pending applications. This portfolio includes (i) composition of matter and methods of use patents on our lead candidate, SP-2577 and (ii) the
patent  portfolio  of  5  patent  families  with  13  granted  patents  and  4  pending  applications  acquired  in  the  DeutRx  Transaction.  Seven  of  the
issued patents acquired in the DeutRx Transaction have claims that cover the composition of matter of SP-3164 with a patent term expiration
of January 14, 2034. Thepatents and patent applications related to SP-2577 are owned by the University of Utah Research Foundation and
are exclusively licensed to us.

In the United States, our anticipated first target market, we have two composition of matter patents (US#8,987,335 and US#9,266,838) and
two methods of use patents (US#9,642,857, US#9,555,024) protecting SP-2577 and related compounds which will expire in 2032.

In  addition  to  patent  protection,  we  seek  to  rely  on  trade  secret  protection,  trademark  protection  and  know-how  to  expand  our  proprietary
position around our chemistry, technology and other discoveries and inventions that we consider important to our business. We also seek to
protect our intellectual property in part by entering into confidentiality agreements with our employees, consultants, scientific advisors, clinical
investigators  and  other  contractors  and  by  requiring  our  employees,  commercial  contractors,  and  certain  consultants  and  investigators,  to
enter  into  invention  assignment  agreements  that  grant  us  ownership  of  any  discoveries  or  inventions  made  by  them.  Further,  we  seek
trademark protection in the United States and internationally where available and when we deem appropriate.

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Competition

SP-2577: LSD1 Inhibition and Competitive Differentiation

LSD1  is  a  widely  published  epigenetic  target  and  has  attracted  interest  from  several  large  pharmaceutical  companies.  LSD1  helps  drive
cancer  progression  through  demethylation  of  histones  and  by  acting  as  a  scaffolding  protein  within  various  activator  and  repressor
complexes. According to clinicaltrials.gov, there are four targeted LSD1 inhibitors and one dual LSD1/HDAC6 inhibitor (JBI-295) in Phase 1/2
below). 
clinical 

development 

(shown 

cancer 

variety 

types 

table 

the 

for 

of 

in 

a 

Company
Salarius
Oryzon
Celgene/Bristol Myers Squibb
Imago
Jubilant

Binding Mechanism
Reversible
Irreversible
Reversible
Irreversible
Irreversible

Drug Name
SP-2577
ORY-1001
CC-90011
IMG-7289
JBI-295

Latest Phase
Phase 1/2
Phase 2
Phase 2
Phase 2
Phase 1

We believe that SP-2577 is differentiated in its ability to effectively inhibit LSD1’s scaffolding properties in addition to LSD1’s demethylation
activity. Compared to irreversible LSD1 inhibitors, our molecule has a novel binding mechanism (reversible as opposed to irreversible) and
binding location (closer to substrate binding site as opposed to the FAD cofactor of LSD1). This was demonstrated in a study conducted by
A. Sehrawat, et al. in “LSD1 activates a Lethal Prostate Cancer Gene Network Independently of its Demethylase Function” with SP-2509, an
analogue  of  SP-2577.  Compared  to  LSD1  inhibitors  in  clinical  development,  SP-2577  binds  to  LSD1  in  a  different  manner,  which  we
hypothesizes may grant it therapeutic advantages over the competition. To further justify this hypothesis, we compared the ability of SP-2577
and an irreversible LSD1 inhibitor, specifically GSK-LSD1 (analogue to GSK’s former clinical candidate), to affect cancer cell growth in vitro.
SP-2577 was able to better inhibit cell growth across 32 cancer cell types compared to GSK-LSD1.

Targeted Protein Degradation and Competitive Differentiation

The field of Targeted Protein Degradation (TPD) is rapidly growing and attracting a lot of interest from the biggest pharmaceutical companies.
The two most common types of protein degraders are molecular glues (MGs) and proteolysis-targeting chimeras (PROTACs). SP-3164 is a
next-generation CRBN-binding MG. There are currently seven MGs in clinical development (see table below) and a few companies in IND-
enabling  studies.  Due  to  structural  similarities  (aminoglutarimide  moiety),  most  MGs  cause  degradation  of  hematopoietic  lineage  factors,
Ikaros and Aiolos, making them attractive agents for the treatment of hematological malignancies. However, based on a compound’s overall
structure,  differences  in  depth  and  efficiency  of  Ikaros  and  Aiolos  degradation,  as  well  as  degradation  of  other  proteins,  e.g.,  GSPT1  or
PDE6E, give individual MGs different therapeutic activities. Antitumor activity, immunomodulation, safety profile, and possible combinations
strategies are all dependent on the select proteins degraded and extent of degradation.

Compound Name

Company

Main Protein Targets

Iberdomide (CC-220)
CC-90009
Mezigdomide (CC-92480)
CC-99282
CFT7455
DKY709
BTX-1188

Bristol Myers Squibb (BMS)
BMS
BMS
BMS
C4 Therapeutics
Novartis
BioTheryX

Ikaros/Aiolos (I/A)
GSPT1, I/A
I/A
I/A
I/A
Helios
GSPT1, I/A

Indications
Indications

MM (Phase 2), NHL (Phase 1/2)
MDS and AML (Phase 1*)
R/R MM and ND MM (Phase 1/2)
NHL (Phase 1/1b), CLL (Phase 1)
NHL and MM (Phase 1)
AST (Phase 1)
AST, NHL and AML (Phase 1)

Although SP-3164 is in IND-enabling studies, we believe it has a higher chance of approval compared to compounds currently in Phase 1
trials or earlier due to the extensive preclinical and clinical studies with the first-

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generation compound, avadomide. Furthermore, compared to MGs currently on the market including Revlimid and Pomalyst , SP-3164 has
potential  to  show  a  more  robust  degradation  of  Ikaros  and  Aiolos,  improved  immunomodulatory  effects,  and  differential  profile  of  proteins
degraded, based on avadomide data.

® 

®

Government Regulation and Product Approvals

United States Government Regulation

In the United States, pharmaceutical products are subject to extensive regulation by the FDA. The Federal Food, Drug, and Cosmetic Act,
and other federal and state statutes and regulations, govern, among other things, the research, development, testing, manufacture, quality
control, safety, effectiveness, storage, recordkeeping, approval, labeling, promotion and marketing, distribution, post-approval monitoring and
reporting, sampling and import and export of pharmaceutical products. We cannot market a drug product candidate in the United States until
the drug has received FDA approval.

Drug Development Process

The process required before a drug may be marketed in the United States generally include the following:

•

•

•

•

•

•

•

•

•

completion  of  extensive  non-clinical  laboratory  tests  and  animal  studies  in  accordance  with  the  FDA’s  Good  Laboratory  Practices
("GLP")  regulations,  applicable  requirements  for  the  humane  use  of  laboratory  animals,  such  as  the  Animal  Welfare  Act  or  other
applicable regulations;

submission  to  the  FDA  of  an  Investigational  New  Drug  ("IND")  for  human  clinical  testing,  which  must  be  deemed  effective  before
human clinical trials may begin;

approval by an independent institutional review board ("IRB") overseeing each clinical site before each trial may be initiated at that
site;

performance of adequate and well-controlled human clinical trials in accordance with Good Clinical Practices ("GCP") requirements ,
and  any  additional  requirements  for  the  protection  of  human  research  subjects  and  their  health  information,to  establish  the  safety
and efficacy of the drug for each proposed indication;

submission  to  the  FDA  of  a  New  Drug  Approval  (“NDA”)  for  marketing  approval  that  includes  substantial  evidence  of  safety  and
effectiveness  from  results  of  clinical  trials,  as  well  as  the  results  of  preclinical  testing,  detailed  information  about  the  chemistry,
manufacturing and controls, and proposed labeling and packaging for the product candidate;

consideration by an FDA Advisory Committee, if applicable;

satisfactory completion of potential FDA audits of the preclinical study and clinical trial sites that generated the data in support of the
NDA;

satisfactory completion of an FDA pre-approval inspection of the nonclinical, clinical and/or manufacturing sites or facilities at which
the active pharmaceutical ingredient, (“API”), and finished drug product are produced and tested to assess compliance with current
Good Manufacturing Practices (“cGMP”); and

FDA review and approval of the NDA prior to any commercial marketing or sale of the drug in the United States, including agreement
on post-marketing commitments, if applicable.

Before testing any drugs with potential therapeutic value in humans, the drug enters the preclinical testing stage. Pre-clinical tests include
laboratory evaluation of product chemistry, formulation and toxicity, as well as animal trials to assess the characteristics and potential safety
and efficacy of the product. The conduct of the pre-clinical tests must comply with federal regulations and requirements, including GLP and
the Animal Welfare Act.

Before  commencing  the  first  clinical  trial  in  humans,  an  IND  must  be  submitted  to  the  FDA,  and  the  IND  must  become  effective.  An  IND
sponsor must submit the results of pre-clinical testing to the FDA as part of an IND along with other information, including information about
product  chemistry,  manufacturing  and  controls  and  a  proposed  clinical  trial  protocol.  Long  term  pre-clinical  tests,  such  as  animal  tests  of
reproductive toxicity and carcinogenicity, may continue after the IND is submitted. A 30-day waiting period after the submission of each IND
is required prior

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to the commencement of clinical testing in humans. If the FDA has neither commented on nor questioned the IND within this 30-day period,
the clinical trial proposed in the IND may begin if all other requirements, including IRB review and approval, have been met. If the FDA raises
concerns or questions about the conduct of the trial, such as whether human research subjects will be exposed to an unreasonable health
risk, the IND sponsor and the FDA must resolve any outstanding FDA concerns or questions before clinical trials can proceed. Even after the
IND has gone into effect and clinical testing has begun, the FDA may also impose clinical holds on clinical trials 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.

Clinical trials involve the administration of the investigational new drug to healthy volunteers or patients under the supervision of a qualified
investigator. Clinical trials must be conducted in compliance with state and federal regulations, including GCP requirements, which include
the requirement that all research subjects provide their informed consent in writing for their participation in any clinical trial. Clinical trials are
conducted under protocols detailing the objectives of the trial, dosing procedures, subject selection and exclusion criteria, and the
parameters to be used in monitoring safety and the effectiveness criteria to be evaluated, including stopping rules that assure a clinical trial
will be stopped if certain adverse events (“AEs”) should occur. Each protocol and subsequent protocol amendments must be submitted to the
FDA as part of the IND.

The FDA may order the temporary or permanent discontinuation of a clinical trial at any time, or impose other sanctions, if it believes that the
clinical trial either is not being conducted in accordance with FDA requirements or presents an unacceptable risk to the clinical trial patients.
The study protocol and informed consent information for patients in clinical trials must also be submitted to an IRB, for approval of each site
at which the clinical trial will be conducted. An IRB may also require the clinical trial at the site to be halted, either temporarily or permanently,
for failure to comply with the IRB’s requirements, or may impose other conditions. Information about certain clinical trials must be submitted
within specific timeframes to the National Institutes of Health (“NIH”) for public dissemination on their www.clinicaltrials.gov website.

Clinical trials to support NDAs for marketing approval are typically conducted in three sequential phases, but the phases may overlap. In
Phase 1, the initial introduction of the drug into healthy human subjects or patients, the drug is tested to assess pharmacological actions,
safety and side effects associated with increasing doses and, if possible, early evidence of effectiveness. Phase 2 usually involves trials in a
larger but limited patient population to study metabolism of the drug, pharmacokinetics, the effectiveness of the drug for a particular
indication, dosage tolerance and optimum dosage, and to identify common adverse effects and safety risks. If a compound demonstrates
evidence of effectiveness and an acceptable safety profile in Phase 2 evaluations, Phase 3 clinical trials, also called pivotal trials, are
undertaken to obtain the additional information about clinical efficacy and safety in a larger number of patients, typically at geographically
dispersed clinical trial sites, to permit the FDA to evaluate the overall benefit-risk relationship of the drug and to provide adequate information
for the labeling of the drug.
Post-approval  studies,  or  Phase  4  clinical  trials,  may  be  conducted  after  initial  marketing  approval.  These  studies  may  be  required  by  the
FDA  as  a  condition  of  approval  and  are  used  to  gain  additional  experience  from  the  treatment  of  patients  in  the  intended  therapeutic
indication. The FDA has express statutory authority to require post-market clinical studies to address safety issues.

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

In  limited  circumstances,  the  FDA  also  permits  the  administration  of  investigational  drug  products  to  patients  under  its  expanded  access
regulatory authorities. Under the FDA’s expanded access authority, patients who are not able

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to  participate  in  a  clinical  trial  may  be  eligible  for  accessing  investigational  products,  including  through  individual  compassionate  or
emergency use in concert with their requesting physician.

Concurrent  with  clinical  trials,  companies  usually  complete  additional  animal  studies,  develop  additional  information  about  the  physical
characteristics  of  the  biological  product  candidate  and  finalize  a  process  for  manufacturing  the  product  in  commercial  quantities  in
accordance  with  cGMP  requirements.  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.

FDA Review and Approval Process

After completion of the required clinical testing, a sponsor may prepare and submit an NDA to the FDA. FDA approval of the NDA is required
before marketing of the product may begin in the United States. The NDA must include the results of all non-clinical, clinical and other testing
and  a  compilation  of  data  relating  to  the  product’s  toxicology,  pharmacology,  chemistry,  manufacture  and  controls.  In  addition,  under  the
Pediatric  Research  Equity  Act,  as  amended,  an  NDA  or  supplement  to  an  NDA  generally  must  contain  data  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 grant deferrals for submission of data or full or partial
waivers depending on the designated pathway for submission. The cost of preparing and submitting an NDA is substantial. The submission
of most NDAs is additionally subject to a substantial application user fee, and the manufacturer and/or sponsor under an approved NDA are
also  subject  to  annual  product  and  establishment  user  fees.  These  fees  are  typically  increased  annually.  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.  Under  the
Prescription Drug User Fee Act (“PDUFA”) performance goals that are currently in effect, the FDA has a goal of ten months from the date of
“filing” of a standard NDA for a new molecular entity to review and act on the submission. This review typically takes twelve months from the
date  the  NDA  is  submitted  to  FDA,  because  the  FDA  has  approximately  two  months  to  make  a  “filing”  decision.  That  deadline  can  be
extended  under  certain  circumstances,  including  by  the  FDA’s  requests  for  additional  information.  The  targeted  action  date  can  also  be
shortened to 6 months of the “filing” date for products that are granted priority review designation because they are intended to treat serious
or life-threatening conditions and demonstrate the potential to address unmet medical needs.

Within 60 days following submission of the application, the FDA reviews all NDAs submitted to ensure that they are sufficiently complete for
substantive review before it accepts them for filing. The FDA may issue a refuse-to-file letter and request additional information rather than
accept  an  NDA  for  filing.  In  this  event,  the  NDA  must  be  resubmitted  with  the  additional  information.  The  resubmitted  application  also  is
subject  to  review  before  the  FDA  accepts  it  for  filing.  Once  the  submission  is  accepted  for  filing,  the  FDA  begins  an  in-depth  substantive
review. The FDA reviews an NDA to determine, among other things, whether the drug is safe and effective and whether the facility(ies) in
which it is manufactured, processed, packaged or held meets standards designed to assure the product’s continued safety, quality and purity.
The  FDA  may  also  refer  applications  for  novel  drug  products,  or  drug  products  that  present  difficult  questions  of  safety  or  efficacy,  to  an
advisory committee-typically a panel that includes clinicians and other experts-for consideration, discussion and a vote on specific questions
relevant  to  the  approval  decision.  The  FDA  is  not  bound  by  the  recommendation  of  an  advisory  committee,  but  it  considers  such
recommendations  carefully  when  making  decisions.  Before  approving  an  NDA,  the  FDA  will  typically  inspect  one  or  more  clinical  sites  to
assure compliance with GCPs. Additionally, the FDA will inspect the facility or the facilities at which the drug is manufactured. The FDA will
not  approve  the  product  unless  compliance  with  cGMP  requirements  is  satisfactory  and  the  NDA  contains  data  that  provide  substantial
evidence that the drug is safe and effective in the indication studied.

During the NDA review process, the FDA also will determine whether a Risk Evaluation and Mitigation Strategy (“REMS”) is necessary to
assure the safe use of the product. If the FDA concludes a REMS is needed, the sponsor must submit a proposed REMS; the FDA will not
approve the NDA without a REMS, if required. A REMS could include a medication guide, communication plan or elements to assure safe
use, such as required healthcare provider or pharmacy certification, a patient registry and other safe use conditions.

After the FDA evaluates the NDA and the manufacturing facilities, it issues either an approval letter or a complete response letter. A complete
response letter generally outlines the deficiencies in the submission and may require substantial additional clinical data , or information, in
order to resubmit the application for another cycle of FDA review. If a complete response letter is issued, the applicant may either resubmit
the NDA, addressing all of the

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deficiencies identified in the complete response letter, or withdraw the application. If those deficiencies have been addressed to the FDA’s
satisfaction in a resubmission of the NDA, the FDA will issue an approval letter. The FDA has committed to reviewing such resubmissions in
two or six months depending on the type of information included.

An approval letter authorizes commercial marketing of the drug with specific prescribing information for specific indications. Even if the FDA
approves a product, it may limit the approved indications for use of the product, require that contraindications, warnings or precautions be
included in the product labeling, require that post- approval studies, including Phase 4 clinical trials, be conducted to further assess a drug’s
safety after approval, require testing and surveillance programs to monitor the product after commercialization, or impose other conditions,
including  distribution  and  use  restrictions  or  other  risk  management  mechanisms  under  a  REMS  to  ensure  that  the  benefits  of  the  drug
outweigh the potential risks.. The requirement for a REMS can materially affect the potential market and profitability of the drug. The FDA
may prevent or limit further marketing of a product based on the results of post-marketing studies or surveillance programs. Once granted,
product  approvals  may  be  withdrawn  if  compliance  with  regulatory  standards  is  not  maintained,  FDA  determines  the  risk  outweighs  the
benefits of the product or other problems are identified following initial marketing.

Changes  to  some  of  the  conditions  established  in  an  approved  application,  including  changes  in  indications,  labeling,  or  manufacturing
processes or facilities, require submission and FDA approval of a new NDA or NDA supplement before the change can be implemented. An
NDA  supplement  for  a  new  indication  typically  requires  clinical  data  similar  to  that  in  the  original  application,  and  the  FDA  uses  the  same
procedures  and  actions  in  reviewing  NDA  supplements  as  it  does  in  reviewing  NDAs.  Such  supplements  are  typically  reviewed  within  10
months of receipt or 6 months of receipt for priority efficacy supplements.

Orphan Drug Status

Under the Orphan Drug Act, the FDA may grant orphan drug designation to drug candidates intended to treat a rare disease or condition,
which is generally a disease or condition that affects fewer than 200,000 individuals in the United States, or more than 200,000 individuals in
the United States and for which there is no reasonable expectation that costs of research and development of the drug for the indication can
be recovered by sales of the drug in the United States. Orphan drug designation must be requested before submitting an NDA. After the FDA
grants orphan drug designation, the generic identity of the therapeutic agent and its potential orphan use are disclosed publicly by the FDA.
Although there may be some increased communication opportunities, orphan drug designation does not convey any advantage in or shorten
the duration of the regulatory review and approval process.

If  a  drug  candidate  that  has  orphan  drug  designation  subsequently  receives  the  first  FDA  approval  for  the  disease  for  which  it  has  such
designation, the product is entitled to orphan drug exclusivity, which means that the FDA may not approve any other applications, including a
full NDA, to market the same drug for the same indication for seven years, except in limited circumstances, such as if the second applicant
demonstrates  the  clinical  superiority  of  its  product  or  if  FDA  finds  that  the  holder  of  the  orphan  drug  exclusivity  has  not  shown  that  it  can
assure the availability of sufficient quantities of the orphan drug to meet the needs of patients with the disease or condition for which the drug
was designated. Orphan drug exclusivity does not prevent the FDA from approving a different drug for the same disease or condition, or the
same drug for a different disease or condition. Among the other benefits of orphan drug designation are tax credits for certain research and a
waiver of the NDA application user fee.

As in the United States, designation as an orphan drug for the treatment of a specific indication in the European Union, must be made before
the application for marketing authorization is made. Orphan drugs in Europe enjoy economic and marketing benefits, including up to 10 years
of  market  exclusivity  for  the  approved  indication  unless  another  applicant  can  show  that  its  product  is  safer,  more  effective  or  otherwise
clinically superior to the orphan designated product.

The FDA and foreign regulators expect holders of exclusivity for orphan drugs to assure the availability of sufficient quantities of their orphan
drugs to meet the needs of patients. Failure to do so could result in the withdrawal of marketing exclusivity for the orphan drug.

Expedited Development and Review Programs

The FDA has a Fast Track program that is intended to expedite or facilitate the process for development and review of new drug products
that meet certain criteria. Specifically, new drug products are eligible for Fast Track

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designation  if  they  are  intended  to  treat  a  serious  or  life-threatening  disease  or  condition  and  demonstrate  the  potential  to  address  unmet
medical needs for the disease or condition. Fast Track designation applies to the combination of the product and the specific indication for
which it is being studied. The sponsor of a new drug may request that the FDA designate the drug as a Fast Track product at any time during
the  clinical  development  of  the  product.  For  a  Fast  Track-designated  product,  the  FDA  may  consider  for  review  sections  of  the  marketing
application  on  a  rolling  basis  before  the  complete  application  is  submitted,  if  the  sponsor  provides  a  schedule  for  the  submission  of  the
sections of the application, the FDA agrees to accept sections of the application and determines that the schedule is acceptable, and the
sponsor pays any required user fees upon submission of the first section of the application. Fast Tack designation may be rescinded if FDA
determines the program no longer meets the qualifying criteria for Fast Track.

Any  product  submitted  to  the  FDA  for  marketing,  including  under  a  Fast  Track  program,  may  be  eligible  for  other  types  of  FDA  programs
intended to expedite development and review, such as priority review and accelerated approval. A product is eligible for priority review if it is
intended  to  treat  a  serious  condition  and,  if  approved,  would  provide  a  significant  improvement  in  safety  or  effectiveness.  The  FDA  will
attempt to direct additional resources to the evaluation of an application for a new drug product designated for priority review in an effort to
facilitate the review on a 6 month, rather than the standard 10 month, timeline. We have received FDA designation as a potential treatment
for  a  rare  pediatric  disease  for  the  use  of  SP-2577  in  Ewing’s  Sarcoma.  Should  SP-2577  prove  to  be  efficacious  in  this  disease  with  a
positive benefit/risk ratio, we expect to receive a Priority Review Voucher. The Priority Review Voucher is transferable and may be sold.

Additionally,  a  product  may  be  eligible  for  accelerated  approval  if  it  treats  a  serious  or  life-threatening  disease  or  condition,  provides
meaningful  advantage  over  existing  treatments,  and  demonstrates  an  effect  on  a  surrogate  endpoint  that  is  reasonably  likely  to  predict  a
clinical benefit or on an intermediate clinical endpoint. If a product qualifies for accelerated approval, the product may be approved based on
an effect on a surrogate endpoint or intermediate clinical endpoint that is reasonably likely to predict the drug’s clinical benefit. As a condition
of accelerated approval, the FDA will require that a sponsor of a drug product subject to accelerated approval perform an adequate and well-
controlled  post-marketing  clinical  trial  to  confirm  clinical  benefit.  In  addition,  the  FDA  currently  requires  as  a  condition  for  accelerated
approval  that  promotional  materials  be  submitted  in  advance  of  initial  dissemination,  which  could  adversely  impact  the  timing  of  the
commercial launch of the product.

In  addition,  under  the  provisions  of  the  FDA  Safety  and  Innovation  Act  (“FDASIA”),  the  FDA  established  the  Breakthrough  Therapy
Designation  which  is  intended  to  expedite  the  development  and  review  of  products  that  treat  serious  or  life-threatening  diseases  or
conditions. A breakthrough therapy is defined as a drug that is intended, alone or in combination with one or more other drugs, to treat a
serious  or  life-threatening  disease  or  condition,  and  preliminary  clinical  evidence  indicates  that  the  drug  may  demonstrate  substantial
improvement over existing therapies on one or more clinically significant endpoints, such as substantial treatment effects observed early in
clinical development. The designation includes all of the features of Fast Track designation, as well as more intensive FDA interaction and
guidance.  The  Breakthrough  Therapy  Designation  is  distinct  from  both  accelerated  approval  and  priority  review,  but  these  can  also  be
granted to the same product candidate if the relevant criteria are met. The FDA may take certain actions, such as holding timely meetings
and providing advice, intended to expedite the development and review of an application for approval of a breakthrough therapy. Requests
for  breakthrough  therapy  designation  will  be  reviewed  within  60  days  of  receipt,  and  the  FDA  will  either  grant  or  deny  the  request.
Breakthrough  Therapy  designation  may  be  rescinded  if  the  FDA  determines  the  program  no  longer  meets  the  qualifying  criteria  for
breakthrough therapy.

Fast  Track  designation,  priority  review,  accelerated  approval  and  Breakthrough  Therapy  Designation  do  not  change  the  standards  for
approval, but may expedite the development or approval process. Even if we receive Fast Track or Breakthrough designations for its product
candidates,  the  FDA  may  later  decide  that  its  product  candidates  no  longer  meet  the  conditions  for  qualification.  In  addition,  these
designations may not provide us with a material commercial advantage.

Post-Approval Requirements

Once an NDA is approved, a product is subject to extensive continuing post-approval requirements. For example, as a condition of approval
of the NDA , the FDA may require post-marketing testing and surveillance to monitor the product’s safety or efficacy.

Adverse event reporting and submission of periodic reports is required following FDA approval of an NDA. The FDA also may require post-
marketing testing, known as Phase 4 testing, REMS or other surveillance to monitor the

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effects  of  an  approved  product,  or  restrictions  on  the  distribution  or  use  of  the  product.  In  addition,  quality  control,  drug  manufacture,
packaging and labeling procedures must continue to conform to cGMP after approval. Drug manufacturers and certain of their subcontractors
are required to register their establishments with the FDA and certain state agencies. Registration with the FDA subjects’ entities to periodic
unannounced  inspections  by  the  FDA,  during  which  the  agency  inspects  manufacturing  facilities  to  assess  compliance  with  cGMP.
Accordingly,  manufacturers  must  continue  to  expend  time,  money  and  effort  in  the  areas  of  production  and  quality-control  to  maintain
compliance with cGMP. Later discovery of previously unknown problems with a product, including adverse events of unanticipated severity or
frequency, or failure to comply with regulatory requirements, may result in mandatory revisions to the approved labeling to add new safety
information,  imposition  of  post-market  studies  or  clinical  trials  to  assess  new  safety  risks  or  imposition  of  distribution  or  other  restrictions
under a REMS program. Other potential consequences include, among other things:

•

•
•

•

restrictions on the marketing or manufacturing of the product, complete withdrawal of the product from the market or product recalls;

fines, untitled letters, warning letters or clinical holds on post-approval clinical trials;
refusal of the FDA to approve pending applications or supplements to approved applications, or suspension or revocation of product
approvals; and

product seizure or detention, or refusal to permit the import or export of products; or injunctions or the imposition of civil or criminal
penalties.

The FDA strictly regulates marketing, labeling, advertising and promotion of products that are placed on the market. Drugs may be promoted
only for the approved indications and in accordance with the provisions of the approved label. The FDA and other agencies actively enforce
the laws and regulations prohibiting the promotion of off-label uses, and a company that is found to have improperly promoted off-label uses
may be subject to significant liability.

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  trials,  marketing
authorization, commercial sales and distribution of our products. Whether or not we obtain FDA approval for a product, we would need to
obtain the necessary approvals by the comparable foreign regulatory authorities before we can commence clinical trials or marketing of the
product in foreign countries and jurisdictions.

Some countries outside of the United States have a similar process that requires the submission of a clinical trial application (“CTA”), much
like the IND prior to the commencement of human clinical trials. In Europe, for example, a CTA must be submitted to each country’s national
health authority and an independent ethics committee, much like the FDA and an IRB, respectively. Once the CTA is approved in accordance
with a country’s requirements, a clinical trial may proceed in that country. To obtain regulatory approval to commercialize a new drug under
European Union regulatory systems, we must submit a marketing authorization application (“MAA”). The MAA is similar to the NDA, with the
exception of, among other things, country-specific document requirements.

Other Healthcare Laws

Although  we  currently  do  not  have  any  products  on  the  market,  our  current  and  future  business  operations  may  be  subject  to  additional
healthcare  regulation  and  enforcement  by  the  federal  government  and  by  authorities  in  the  states  and  foreign  jurisdictions  in  which  we
conducts  our  business.  Such  laws  include,  without  limitation,  state  and  federal  anti-kickback,  fraud  and  abuse,  false  claims,  privacy  and
security, price reporting and physician sunshine laws. Some of our pre-commercial activities are subject to some of these laws.

The federal Anti-Kickback Statute makes it illegal for any person or entity, including a prescription drug manufacturer or a party acting on its
behalf to knowingly and willfully, directly or indirectly, solicit, receive, offer, or pay any remuneration that is intended to induce the referral of
business,  including  the  purchase,  order,  lease  of  any  good,  facility,  item  or  service  for  which  payment  may  be  made  under  a  federal
healthcare program, such as Medicare or Medicaid. The term “remuneration” has been broadly interpreted 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, formulary managers and beneficiaries on the other.

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Although 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.  Practices  that  involve  remuneration  that  may  be  alleged  to  be  intended  to  induce
prescribing, purchases or recommendations 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 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  its  facts  and  circumstances.  Several  courts  have  interpreted  the  statute’s  intent  requirement  to  mean  that  if  any  one  purpose  of  an
arrangement  involving  remuneration  is  to  induce  referrals  of  federal  healthcare  covered  business,  the  Anti-Kickback  Statute  has  been
violated. In addition, 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.  Violations  of  this  law  are  punishable  by  up  to  five  years  in  prison,  and  can  also  result  in  criminal  fines,  civil  money
penalties and exclusion from participation in federal healthcare programs.

Moreover, a claim including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent
claim for purposes of the federal civil False Claims Act.

The federal civil False Claims Act prohibits, among other things, any person or entity from knowingly presenting, or causing to be presented,
for  payment  to,  or  approval  by,  federal  programs,  including  Medicare  and  Medicaid,  claims  for  items  or  services,  including  drugs,  that  are
false or fraudulent or not provided as claimed. Persons and entities can be held liable under these laws if they are deemed to “cause” the
submission  of  false  or  fraudulent  claims  by,  for  example,  providing  inaccurate  billing  or  coding  information  to  customers  or  promoting  a
product  off-label.  In  addition,  our  future  activities  relating  to  the  reporting  of  wholesaler  or  estimated  retail  prices  for  our  products,  the
reporting of prices used to calculate Medicaid rebate information and other information affecting federal, state and third-party reimbursement
for our products, and the sale and marketing of our products, are subject to scrutiny under this law. Penalties for federal civil False Claims Act
violations may include up to three times the actual damages sustained by the government, plus mandatory civil penalties of between $5,500
and $11,000 for each separate false claim, the potential for exclusion from participation in federal healthcare programs, and, although the
federal False Claims Act is a civil statute, False Claims Act violations may also implicate various federal criminal statutes.

The  Health  Insurance  Portability  and  Accountability  Act  (“HIPAA”)  created  new  federal  criminal  statutes  that  prohibit  among  other  actions,
knowingly and willfully executing, or attempting to execute, a scheme to defraud any healthcare benefit program, including private third- party
payors,  knowingly  and  willfully  embezzling  or  stealing  from  a  healthcare  benefit  program,  willfully  obstructing  a  criminal  investigation  of  a
healthcare offense, and 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. Like 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.

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.

Also, many states have similar fraud and abuse statutes or regulations that may be broader in scope and may apply regardless of payor, in
addition to items and services reimbursed under Medicaid and other state programs. Additionally, to the extent that any of our products are
sold in a foreign country, we may be subject to similar foreign laws.

HIPAA,  as  amended  by  the  Health  Information  Technology  for  Economic  and  Clinical  Health  Act  (“HITECH”),  and  their  implementing
regulations,  including  the  final  omnibus  rule  published  on  January  25,  2013,  mandates,  among  other  things,  the  adoption  of  uniform
standards  for  the  electronic  exchange  of  information  in  common  healthcare  transactions,  as  well  as  standards  relating  to  the  privacy  and
security  of  individually  identifiable  health  information,  which  require  the  adoption  of  administrative,  physical  and  technical  safeguards  to
protect such information. Among other things, HITECH makes HIPAA’s security standards directly applicable to business associates, defined
as  independent  contractors  or  agents  of  covered  entities  that  create,  receive  or  obtain  protected  health  information  in  connection  with
providing a service for or on behalf of a covered entity. HITECH also increased the civil and criminal penalties that may be imposed against
covered entities and business associates, and 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 attorney’s fees and costs associated with pursuing federal civil actions. In addition,
certain state laws govern

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the  privacy  and  security  of  health  information  in  certain  circumstances,  some  of  which  are  more  stringent  than  HIPAA  and  many  of  which
differ  from  each  other  in  significant  ways  and  may  not  have  the  same  effect,  thus  complicating  compliance  efforts.  Failure  to  comply  with
these laws, where applicable, can result in the imposition of significant civil and/or criminal penalties.

The  ACA  imposed,  among  other  things,  new  annual  reporting  requirements  for  covered  manufacturers  for  certain  payments  and  other
transfers of value provided to physicians and teaching hospitals, as well as certain ownership and investment interests held by physicians
and their immediate family members.

Failure to submit timely, accurately and completely the required information for all payments, transfers of value and ownership or investment
interests 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.” Certain states also mandate implementation of compliance programs, impose restrictions on drug manufacturer marketing
practices and/or require the tracking and reporting of gifts, compensation and other remuneration to physicians.

Because  we  intend  to  commercialize  products  that  could  be  reimbursed  under  a  federal  healthcare  program  and  other  governmental
healthcare programs, we intend to develop a comprehensive compliance program that establishes internal control to facilitate adherence to
the rules and program requirements to which we will or may become subject. Although the development and implementation of compliance
programs  designed  to  establish  internal  control  and  facilitate  compliance  can  mitigate  the  risk  of  investigation,  prosecution,  and  penalties
assessed for violations of these laws, the risks cannot be entirely eliminated.

If our operations are found to be in violation of any of such laws or any other governmental regulations that apply to us, we may be subject to
penalties,  including,  without  limitation,  administrative,  civil  and  criminal  penalties,  damages,  fines,  disgorgement,  contractual  damages,
reputational  harm,  diminished  profits  and  future  earnings,  the  curtailment  or  restructuring  of  our  operations,  exclusion  from  participation  in
federal and state healthcare programs and individual imprisonment, any of which could adversely affect our ability to operate our business
and our financial results.

Healthcare Reform

In the United States and foreign jurisdictions, there have been a number of legislative and regulatory changes to the healthcare system that
could affect our future results of operations. There have been and continue to be a number of initiatives at the United States federal and state
levels that seek to reduce healthcare costs.

In  particular,  the  Patient  Protection  and  Affordable  Care  Act,  as  amended,  (the  “ACA”)  has  had,  and  is  expected  to  continue  to  have,  a
significant impact on the healthcare industry. The ACA was designed to expand coverage for the uninsured while at the same time containing
overall healthcare costs, among other objectives. With regard to pharmaceutical products, among other things, the ACA revised the definition
of  “average  manufacturer  price”  for  calculating  and  reporting  Medicaid  drug  rebates  on  outpatient  prescription  drug  prices  and  imposed  a
significant annual fee on companies that manufacture or import certain branded prescription drug products. It is unclear how efforts to modify
or  challenge  the  ACA  or  its  implementing  regulations,  or  portions  thereof,  will  affect  our  business.  Additional  legislative  and  regulatory
changes, and further judicial challenges, related to the ACA remain possible. Any such changes or challenges could have a material adverse
effect on our industry generally and on our ability to successfully commercialize our product candidates.

In  addition,  other  legislative  changes  have  been  proposed  and  adopted  since  the  ACA  was  enacted.  In  August  2011,  President  Obama
signed  into  law  the  Budget  Control  Act  of  2011,  which,  among  other  things,  created  the  Joint  Select  Committee  on  Deficit  Reduction  to
recommend to Congress proposals in spending reductions. The Joint Select Committee did not achieve a targeted deficit reduction of at least
$1.2 trillion for the years 2013 through 2021, triggering the legislation’s automatic reduction to several government programs. These included
reductions  to  Medicare  payments  to  providers  of,  on  average,  2%  per  fiscal  year,  which  went  into  effect  on  April  1,  2013  and,  due  to
subsequent legislative amendments to the statute, will stay in effect through 2030, with the exception of a temporary suspension from May 1,
2020, through May 31, 2022, due to the COVID-19 pandemic. The law provides for 1% Medicare sequestration in the second quarter of 2022
and allows the full 2% sequestration thereafter until 2030. To offset the temporary suspension during the COVID-19 pandemic, in 2030, the
sequestration will be 2.25% for the first half of the year, and 3% in the second half of the year.

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Additionally, in January 2013, the American Taxpayer Relief Act of 2012 was signed into law, which, among other things, further reduced
Medicare payments to several providers and increased the statute of limitations period for the government to recover overpayments to
providers from three to five years.

Moreover,  the  Drug  Supply  Chain  Security  Act,  imposes  new  obligations  on  manufacturers  of  pharmaceutical  products,  among  others,
related  to  product  tracking  and  tracing,  which  will  be  phased  in  over  several  years  beginning  in  2016.  Among  the  requirements  of  this
legislation,  manufacturers  will  be  required  to  provide  certain  information  regarding  the  drug  product  to  individuals  and  entities  to  which
product  ownership  is  transferred,  label  drug  product  with  a  product  identifier,  and  keep  certain  records  regarding  the  drug  product.  The
transfer of information to subsequent product owners by manufacturers will eventually be required to be done electronically. Manufacturers
will also be required to verify that purchasers of the manufacturers’ products are appropriately licensed. Further, under this new legislation,
manufacturers  will  have  drug  product  investigation,  quarantine,  disposition,  and  notification  responsibilities  related  to  counterfeit,  diverted,
stolen, and intentionally adulterated products, as well as products that are the subject of fraudulent transactions or which are otherwise unfit
for distribution such that they would be reasonably likely to result in serious health consequences or death.

We expect that the ACA, as well as other healthcare reform measures that have been adopted and may be adopted in the future, may result
in more rigorous coverage criteria and in additional downward pressure on the price that we may receive for our products, if commercialized,
and could seriously harm our future revenues. Any reduction in reimbursement from Medicare, Medicaid, or 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 us from being able to generate revenues, attain profitability, or successfully commercialize our products.

Coverage and Reimbursement

Sales of our product candidates, once approved, will depend, in part, on the extent to which the costs of our products will be covered by third-
party payors, such as government health programs, private health insurers and managed care organizations. Third-party payors generally
decide  which  drugs  they  will  cover  and  establish  certain  reimbursement  levels  for  such  drugs.  In  particular,  in  the  United  States,  private
health  insurers  and  other  third-party  payors  often  provide  reimbursement  for  products  and  services  based  on  the  level  at  which  the
government  (through  the  Medicare  or  Medicaid  programs)  provides  reimbursement  for  such  treatments.  Patients  who  are  prescribed
treatments for their conditions and providers performing the prescribed services generally rely on third-party payors to reimburse all or part of
the associated healthcare costs. Patients are unlikely to use our products unless coverage is provided and reimbursement is adequate to
cover  a  significant  portion  of  the  cost  of  our  products.  Sales  of  our  product  candidates,  and  any  future  product  candidates,  will  therefore
depend substantially on the extent to which the costs of our product candidates, and any future product candidates, will be paid by third-party
payors. Additionally, the market for our product candidates, and any future product candidates, will depend significantly on access to third-
party payors’ formularies without prior authorization, step therapy, or other limitations such as approved lists of treatments for which third-
party payors provide coverage and reimbursement. Additionally, coverage and reimbursement for therapeutic products can differ significantly
from payor to payor. One third-party payor’s decision to cover a particular medical product or service does not ensure that other payors will
also  provide  coverage  for  the  medical  product  or  service,  or  will  provide  coverage  at  an  adequate  reimbursement  rate.  As  a  result,  the
coverage determination process will require us to provide scientific and clinical support for the use of our products to each payor separately
and will be a time-consuming process.

Third-party payors are developing increasingly sophisticated methods of controlling healthcare costs and increasingly challenging the prices
charged  for  medical  products  and  services.  Additionally,  the  containment  of  healthcare  costs  has  become  a  priority  of  federal  and  state
governments  and  the  prices  of  drugs  have  been  a  focus  in  this  effort.  The  United  States  government,  state  legislatures  and  foreign
governments  have  shown  significant  interest  in  implementing  cost-containment  programs,  including  price  controls  and  transparency
requirements,  restrictions  on  reimbursement  and  requirements  for  substitution  of  generic  products.  Adoption  of  price  controls  and  cost-
containment  measures,  and  adoption  of  more  restrictive  policies  in  jurisdictions  with  existing  controls  and  measures,  could  limit  our  net
revenue and results. If these third-party payors do not consider our products to be cost-effective compared to other therapies, they may not
cover our products once approved as a benefit under their plans or, if they do, the level of reimbursement may not be sufficient to allow us to
sell our products on a profitable basis. Decreases in third-party reimbursement for our products once approved or a decision by a third-party
payor  to  not  cover  our  products  could  reduce  or  eliminate  utilization  of  our  products  and  have  an  adverse  effect  on  our  sales,  results  of
operations and financial condition. In addition, state and federal healthcare reform measures have

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been  and  will  be  adopted  in  the  future,  any  of  which  could  limit  the  amounts  that  federal  and  state  governments  will  pay  for  healthcare
products and services, which could result in reduced demand for our products once approved or additional pricing pressures.

Facilities

Our  principal  executive  offices  are  in  the  Texas  Medical  Center  in  Houston,  Texas,  under  a  month-to-month  lease.  This  facility  consists  of
approximately 1,000 square feet and accommodates our general and administrative activities. Additionally, we lease laboratory space from
Johnson & Johnson, JLABS facility located adjacent to our corporate office. We do not own any real property. We believe that our leased
facility is adequate to meet our current needs and that additional facilities will be available on commercially reasonable terms to meet our
future needs.

Employees and Human Capital Resources

As of March 12, 2022, we had 16 full-time employees. We have never had a work stoppage, and none of our employees are represented by
a labor organization or under any collective bargaining arrangements. We consider our employee relations to be good.

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

Legal Proceedings

We are not currently a party to any legal proceedings the outcome of which we believe, if determined adversely to us, would individually or in
the  aggregate,  have  a  material  adverse  effect  on  our  business,  financial  condition,  or  results  of  operations.  From  time  to  time,  we  may
become involved in legal proceedings arising in the ordinary course of business.

Corporate Information and Web Site Access to SEC Filings

The Company was initially incorporated as Flex Pharma, Inc. in Delaware in February 2014. In July 2019, we changed our named to Salarius
Pharmaceuticals, Inc. Our principal executive offices are located at 2450 Holcombe Blvd., Suite X, Houston, TX 77021, and our telephone
number is (832) 834-6992. Our website address is www.salariuspharma.com. The public can obtain any documents that we file with the SEC
at http://www.sec.gov.

Item 1A. Risk Factors

The  risk  factors  described  below,  as  well  as  statements  described  elsewhere  in  this  Annual  Report  on  Form  10-K,  including  our  audited  Consolidated
Financial Statements and the related notes and “Management’s Discussion and Analysis of Financial Conditions and Results of Operations”, or in other
SEC filings, describe risks that could materially and adversely affect our business, financial condition, and results of operations, which could also cause
the  trading  price  of  our  equity  securities  to  decline.  These  risks  are  not  the  only  risks  that  we  face.  Our  business,  financial  condition  and  results  of
operations could also be affected by additional factors that are not presently known to us or that we currently consider to be immaterial to our operations.

Risks Related to the Development of our Product Candidates

The approach we are taking to discover and develop novel oncology therapeutics using epigenetic enzymes to moderate
transcription factors and thereby control abnormal protein expression is unproven and may never lead to marketable products.

The scientific discoveries that form the basis for our efforts to discover and develop our current product candidates are relatively recent. To
date, neither we nor any other company has received regulatory approval to market therapeutics using epigenetic enzymes. The scientific
evidence to support the feasibility of developing drugs based

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on these discoveries is both preliminary and limited. The Successful development of therapeutic products will require solving a number of
issues. In addition, any product candidates that we develop may not demonstrate in patients the chemical and pharmacological properties
ascribed to them in laboratory and pre-clinical trials, and they may interact with human biological systems in unforeseen, ineffective or even
harmful ways. For instance, our clinical and pre-clinical data to date is not validated and we have no way of knowing if after validation our
clinical trial data will be complete and consistent. If we do not successfully develop and commercialize product candidates based upon this
technological approach, we may not become profitable and the value of our capital stock may decline.

Further, our focus on epigenetic enzyme technology for developing product candidates as opposed to multiple, more proven technologies for
drug  development  increases  the  risk  associated  with  our  business.  If  we  are  not  successful  in  developing  an  approved  product  using  our
technology,  we  may  not  be  able  to  identify  and  successfully  implement  an  alternative  product  development  strategy.  In  addition,  work  by
other  companies  pursuing  similar  technologies  may  encounter  setbacks  and  difficulties  that  regulators  and  investors  may  attribute  to  our
product candidates, whether appropriate or not.

Clinical trials are costly, time consuming and inherently risky, and we may fail to demonstrate safety and efficacy to the
satisfaction of applicable regulatory authorities.

Clinical  development  is  expensive,  time  consuming  and  involves  significant  risk.  We  cannot  guarantee  that  any  clinical  trials  will  be
conducted as planned or completed on schedule, if at all. A failure of one or more of our clinical trials can occur at any stage of development.
Events that may prevent successful or timely completion of clinical development include but are not limited to:

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the inability to generate satisfactory pre-clinical, toxicology, or other in vivo or in vitro data or diagnostics to support the initiation or
continuation of our clinical trials;

delays in reaching agreement on acceptable terms with clinical research organizations, (“CROs”), and clinical trial sites, the terms of
which can be subject to extensive negotiation and may vary significantly among different CROs and clinical trial sites;

delays in obtaining required IRB approval at each clinical trial site;

failure  to  permit  the  conduct  of  a  clinical  trial  by  regulatory  authorities,  after  review  of  an  investigational  new  drug  or  equivalent
foreign application or amendment;

delays and inability in recruiting qualified patients in our clinical trials;

imposition of a clinical hold by regulatory agencies for any reason, including safety concerns raised by other clinical trials of similar
product candidates that may reflect an unacceptable risk with the patient population, technology platform, product stability or after an
inspection of clinical operations or trial sites;

failure by clinical sites or CROs or other third parties to adhere to clinical trial requirements;

failure  by  our  clinical  sites,  CROs  or  other  third  parties  to  perform  in  accordance  with  contractual  obligations  or  the  regulatory
requirements of the FDA, or applicable foreign regulatory guidelines;

patients dropping out of our clinical trials;

the number of patients required for our clinical trials may be larger than we anticipate, enrollment in our clinical trials may be slower
than  we  anticipate  or  participants  may,  including  as  a  result  of  the  COVID  19  pandemic,  withdraw  from  our  clinical  trials,  fail  to
complete dosing or fail to return for post-treatment follow-up at higher rates than we anticipate, any of which could result in significant
delay;

• withdrawal of clinical trial sites from our clinical trials, including as a result of changing standards of care or the ineligibility of a site to

participate;

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delays or failure in the testing, validation, manufacturing and delivery of the product candidates to the clinical sites;

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adverse events or tolerability or animal toxicology issues significant enough for the FDA or other regulatory agencies to put any or all
clinical trials on hold;

occurrence of adverse events associated with our product candidates;

changes in regulatory requirements and guidance that require amending or submitting new clinical protocols;

the cost of the clinical trials of our product candidates;

negative  or  inconclusive  results  from  our  clinical  trials  which  may  result  in  us  deciding,  or  regulators  requiring  us,  to  conduct
additional clinical trials or abandon development programs in other ongoing or planned indications for a product candidate;

the regulatory requirements for product approval may not be explicit, may evolve over time and may diverge by jurisdiction;

evolution in the standard of care that require amendments to ongoing clinical trials and/or the conduct of additional preclinical studies
or clinical trials;

changes in regulatory requirements and guidance that require amending or submitting new clinical protocols; and

delays  in  reaching  agreement  on  acceptable  terms  with  third-party  manufacturers  and  the  time  for  manufacture  of  sufficient
quantities of our product candidates for use in clinical trials.

Any inability to successfully complete clinical development and obtain regulatory approval for our product candidates could result in additional
costs or impair our ability to generate revenue. In addition, if we make manufacturing or formulation changes to our product candidates, we
may  need  to  conduct  additional  pre-clinical  trials  or  the  results  obtained  from  such  new  formulation  may  not  be  consistent  with  previous
results  obtained.  Clinical  trial  delays  could  also  shorten  any  periods  during  which  our  products  have  patent  protection  and  may  allow
competitors to develop and bring products to market before we do, which could impair our ability to successfully commercialize our product
candidates and may harm our business and results of operations.

We, the FDA, other regulatory authorities outside the United States, or an IRB may suspend a clinical trial at any time for various reasons,
including if it appears that the clinical trial is exposing participants to unacceptable health risks or if the FDA or one or more other regulatory
authorities outside the United States find deficiencies in our IND or similar application outside the United States or the conduct of the trial.
Delays, including delays caused by the above factors, can be costly and could negatively affect our ability to complete a clinical trial.

We cannot give any assurance that we will be able to resolve any future clinical holds imposed by the FDA or other regulatory authorities
outside of the United States, or any delay caused by manufacturing failures or other factors described above or any other factors, on a timely
basis or at all. If we are not able to successfully initiate and complete clinical trials, we will not be able to obtain regulatory approval and will
not be able to commercialize our product candidates.

Even if our clinical trials are successfully completed as planned, the results may not support approval of our product candidates under the
laws and regulations of the FDA or other regulatory authorities outside the United States. The clinical trial process may fail to demonstrate
that our product candidates are both safe and effective for their intended uses. Pre-clinical and clinical data and analyses are often able to be
interpreted  in  different  ways.  Even  if  we  view  our  results  favorably,  if  a  regulatory  authority  has  a  different  view,  we  may  still  fail  to  obtain
regulatory approval of our product candidates. This, in turn, would significantly adversely affect our business prospects.

Our therapeutic product candidates are based on a relatively novel technology, which makes it difficult to predict the timing and
cost of development and of subsequently obtaining regulatory approval, if at all.

We  have  concentrated  our  research  and  development  efforts  to  date  on  a  limited  number  of  product  candidates  based  on  our  epigenetic
enzyme  therapeutic  platform  and  identifying  our  initial  targeted  disease  indications.  Our  future  success  depends  on  our  successful
development of viable product candidates. Currently, only one of our product candidates (seclidemstat) is in Phase 1 clinical development,
and the remainder of our product candidates

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are  in  pre-clinical  development.  There  can  be  no  assurance  that  we  will  not  experience  problems  or  delays  in  developing  our  product
candidates and that such problems or delays will not cause unanticipated costs, or that any such development problems can be solved.

The  clinical  trial  and  manufacturing  requirements  of  the  FDA,  the  European  Medicines  Agency  and  other  regulatory  authorities,  and  the
criteria these regulators use to determine the safety and efficacy of a product candidate, vary substantially according to the type, complexity,
novelty  and  intended  use  and  market  of  the  product  candidate.  The  regulatory  approval  process  for  novel  product  candidates  such  as
epigenetic  enzyme  therapeutics  can  be  more  expensive  and  take  longer  than  for  other,  better  known  or  more  extensively  studied  product
candidates. It is difficult to determine how long it will take or how much it will cost to obtain regulatory approvals for our product candidates in
either  the  United  States  or  the  European  Union  or  how  long  it  will  take  to  commercialize  our  product  candidates,  even  if  approved  for
marketing. Approvals by the European Commission may not be indicative of what the FDA, and vice versa, may require for approval and
different or additional pre-clinical trials or clinical trials may be required to support regulatory approval in each respective jurisdiction. Delay or
failure to obtain, or unexpected costs in obtaining, the regulatory approval necessary to bring a potential product candidate to market could
decrease our ability to generate sufficient product revenue, and our business, financial condition, results of operations and prospects may be
harmed.

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

Undesirable side effects caused by our product candidates could cause us, an IRB or ethics committee, or regulatory authorities to interrupt,
delay,  or  terminate  clinical  trials  or  even  if  approved,  result  in  a  restrictive  label  or  delay  regulatory  approval  by  the  FDA  or  comparable
foreign authorities and potential product liability claims.

In addition, to date our product candidates have been studied in only a very limited number of patients. Our understanding of the relationship
between our product candidates and these events, as well as our understanding of adverse events reported in future clinical trials of other
product  candidates,  may  change  as  we  gather  more  information,  and  additional  unexpected  adverse  events  may  be  observed.  We  may
experience a high rates or severity of adverse events and comparable or high rates of discontinuation in testing in our future clinical trials.
There is no guarantee that severe side effects will not be identified through ongoing clinical trials of our product candidates for current and
other indications. Undesirable side effects and negative results for other indications may negatively impact the development and potential for
approval of our product candidates for their proposed indications. In addition, the side effect profile of pharmaceutical drugs cannot be fully
established based on preapproval clinical trials involving a limited number of patients. Routine review and analysis of post-marketing safety
surveillance  and  clinical  trials  will  provide  additional  information,  for  example,  potential  evidence  of  rare,  population-specific  or  long-term
adverse reactions, and may adversely affect the commercialization of the product, and even lead to the suspension or revocation of product
marketing  authorization.  Specifically,  as  a  result  of  concerns  regarding  the  potential  teratogenic  and  abortifacient  effects  of  SP-2577,
pregnant women were excluded from the conducted studies.

If  we  or  others  identify  undesirable  side  effects  caused  by  our  product  candidates  either  before  or  after  receipt  of  marketing  approval,  a
number of potentially significant negative consequences could result, including but not limited to:

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our clinical trials may be put on hold;

• we may be unable to obtain regulatory approval for our product candidates;

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regulatory authorities may withdraw approvals of such products;

regulatory authorities may require additional warnings on the label;

• We  may  be  required  to  create  a  REMS  plan,  which  could  include  a  medication  guide  outlining  the  risks  of  such  side  effects  for

distribution to patients, a communication plan for healthcare providers, and/or other elements to assure safe use;

• We could be sued and held liable for harm caused to patients; and

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its reputation may suffer.

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Any of these events could prevent us from achieving or maintaining market acceptance of a product candidate, even if approved, and could
significantly harm or cause the complete failure of our business, results of operations, and prospects.

Some of our product candidates may produce results in pre-clinical or clinical settings for indications other than those for which
we contemplate conducting development activities or seeking FDA approval, and we cannot give any assurance that our clinical
trials  will  generate  data  for  any  of  our  product  candidates  sufficient  to  receive  regulatory  approval  in  our  planned  indications,
which will be required before they can be commercialized.

We currently have one product candidate in Phase 1/2 clinical trials for advanced solid tumors - seclidemstat. This is only one of the multiple
indications for which we plan to develop this product candidate. There can be no assurance that the data that we develop for our product
candidates in our planned indications will be sufficient to obtain regulatory approval.

In addition, none of our product candidates have advanced into a pivotal clinical trial for our proposed indications and it may be years before
any such clinical trial is initiated and completed, if at all. We are not permitted to market or promote any of our product candidates before we
receive regulatory approval from the FDA or comparable foreign regulatory authorities, and we may never receive such regulatory approval
for  any  of  our  product  candidates.  We  cannot  be  certain  that  any  of  our  product  candidates  will  be  successful  in  clinical  trials  or  receive
regulatory approval. Further, our product candidates may not receive regulatory approval even if they are successful in clinical trials. If we do
not receive regulatory approvals for our product candidates, we may not be able to continue our operations.

Product development involves a lengthy and expensive process with an uncertain outcome, and results of earlier pre-clinical and
clinical trials may not be predictive of future clinical trial results.

Clinical testing is expensive and generally takes many years to complete, and the outcome is inherently uncertain. Failure can occur at any
time during the clinical trial process. The results of pre-clinical trials and early clinical trials of our product candidates may not be predictive of
the  results  of  larger,  later-stage  controlled  clinical  trials.  Product  candidates  that  have  shown  promising  results  in  early-stage  clinical  trials
may still suffer significant setbacks in subsequent clinical trials. Our clinical trials to date have been conducted on a small number of patients
in limited numbers of clinical sites for a limited number of indications. We will have to conduct larger, well-controlled trials in our proposed
indications  to  verify  the  results  obtained  to  date  and  to  support  any  regulatory  submissions  for  further  clinical  development.  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 despite promising results in earlier, smaller clinical trials. Moreover, clinical data are often susceptible to varying interpretations
and analyses. We cannot assure whether any Phase 1, Phase 2, Phase 3, or other clinical trials we may conduct will demonstrate consistent
or adequate efficacy and safety with respect to the proposed indication for use sufficient to receive regulatory approval or market our drug
candidates.

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

Because  we  have  limited  financial  and  human  resources,  we  may  forego  or  delay  pursuit  of  opportunities  with  some  programs  or  product
candidates or for other indications that later prove to have greater commercial potential. Our resource allocation decisions may cause us to
fail  to  capitalize  on  viable  commercial  products  or  more  profitable  market  opportunities.  Our  spending  on  current  and  future  research  and
development programs and future product candidates for specific indications may not yield any commercially viable products. We may also
enter  into  additional  strategic  collaboration  agreements  to  develop  and  commercialize  some  of  our  programs  and  potential  product
candidates  in  indications  with  potentially  large  commercial  markets.  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  strategic  collaborations,
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,  or  we  may  allocate  internal  resources  to  a  product  candidate  in  a  therapeutic  area  in
which it would have been more advantageous to enter into a partnering arrangement.

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We may find it difficult to enroll patients in our clinical trials given the limited number of patients who have the diseases for which
our product candidates are being studied. Difficulty in enrolling patients is a common hurdle faced by early stage biotechnology
companies and could, and often does, delay or prevent clinical trials of product candidates.

Identifying and qualifying patients to participate in clinical trials of our product candidates is essential to our success. The timing of our clinical
trials  depends  in  part  on  the  rate  at  which  we  can  recruit  patients  to  participate  in  clinical  trials  of  our  product  candidates,  and  we  may
experience delays in our clinical trials if we encounter difficulties in enrollment.

Patient enrollment is affected by several factors, including:
severity of the disease under investigation;

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design of the trial protocol;

size of the patient population;

perceived risks and benefits of the product candidate being tested;

• willingness or availability of patients to participate in our clinical trials (including due to the COVID‑19 pandemic);

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proximity and availability of clinical trial sites for prospective patients;

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

availability of competing vaccines and/or therapies and related clinical trials;

efforts to facilitate timely enrollment in clinical trials;

our ability to obtain and maintain patient consents;

patient referral practices of physicians; and

ability to monitor patients adequately during and after treatment.

We may not be able to initiate or continue clinical trials if we cannot enroll a sufficient number of eligible patients to participate in the clinical
trials required by regulatory agencies.

The eligibility criteria of our planned clinical trials may further limit the available eligible trial participants as we expect to require that patients
have specific characteristics that we can measure or meet the criteria to assure their conditions are appropriate for inclusion in our clinical
trials.  We  may  not  be  able  to  identify,  recruit,  and  enroll  a  sufficient  number  of  patients  to  complete  our  clinical  trials  in  a  timely  manner
because of the perceived risks and benefits of the product candidate under study, the availability and efficacy of competing therapies and
clinical trials, and the willingness of physicians to participate in our planned clinical trials. If patients are unwilling to participate in our clinical
trials for any reason, the timeline for conducting trials and obtaining regulatory approval of our product candidates may be delayed.

Even  if  we  enroll  a  sufficient  number  of  eligible  patients  to  initiate  our  clinical  trials,  we  may  be  unable  to  maintain  participation  of  these
patients  throughout  the  course  of  the  clinical  trial  as  required  by  the  clinical  trial  protocol,  in  which  event  we  may  be  unable  to  use  the
research  results  from  those  patients.  If  we  have  difficulty  enrolling  and  maintaining  the  enrollment  of  a  sufficient  number  of  patients  to
conduct our clinical trials as planned, we may need to delay, limit or terminate ongoing or planned clinical trials, any of which would have an
adverse effect on our business.

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If we experience delays in the completion of, or termination of, any clinical trials of our product candidates, the commercial prospects of our
product candidates could be harmed, and our ability to generate product revenue from any of these product candidates could be delayed or
prevented.  In  addition,  any  delays  in  completing  our  clinical  trials  would  likely  increase  our  overall  costs,  impair  product  candidate
development and jeopardize our ability to obtain regulatory approval relative to our current plans. Any of these occurrences may harm our
business, financial condition, and prospects significantly.

We  may  face  potential  product  liability,  and,  if  successful  claims  are  brought  against  us,  we  may  incur  substantial  liability  and
costs  which  could  be  greater  than  our  insurance  coverage  or  overall  resources.  If  the  use  or  misuse  of  our  product  candidates
harms  patients,  or  is  perceived  to  harm  patients  even  when  such  harm  is  unrelated  to  our  product  candidates,  our  regulatory
approvals,  if  any,  could  be  revoked  or  otherwise  negatively  impacted  and  we  could  be  subject  to  costly  and  damaging  product
liability claims. If we are unable to obtain adequate insurance or are required to pay for liabilities resulting from a claim excluded
from, or beyond the limits of, our insurance coverage, a material liability claim could adversely affect our financial condition.

The  use  or  misuse  of  our  product  candidates  in  clinical  trials  and  the  sale  of  any  products  for  which  we  may  obtain  marketing  approval
exposes  us  to  the  risk  of  potential  product  liability  claims.  Product  liability  claims  might  be  brought  against  us  by  consumers,  healthcare
providers, pharmaceutical companies or others selling or otherwise coming into contact with our product candidates and approved products,
if  any.  There  is  a  risk  that  our  product  candidates  may  induce  adverse  events.  If  we  cannot  successfully  defend  against  product  liability
claims, we could incur substantial liability and costs. Patients with the diseases targeted by our product candidates may already be in severe
and  advanced  stages  of  disease  and  have  both  known  and  unknown  significant  preexisting  and  potentially  life-threatening  health  risks.
During  the  course  of  treatment,  patients  may  suffer  adverse  events,  including  death,  for  reasons  that  may  be  related  to  our  product
candidates.  Such  events  could  subject  us  to  costly  litigation,  require  us  to  pay  substantial  amounts  of  money  to  injured  patients,  delay,
negatively  impact  or  end  our  opportunity  to  receive  or  maintain  regulatory  approval  to  market  our  products,  or  require  us  to  suspend  or
abandon  our  commercialization  efforts.  Even  in  a  circumstance  in  which  an  adverse  event  is  unrelated  to  our  product  candidates,  the
investigation into the circumstance may be time-consuming or inconclusive. These investigations may delay our regulatory approval process
or impact and limit the type of regulatory approvals our product candidates receive or maintain. As a result of these factors, a product liability
claim, even if successfully defended, could have a material adverse effect on our business, financial condition or results of operations.

Although we have product liability insurance, which covers our clinical trials in the United States, for up to $2.0 million per occurrence, up to
an aggregate limit of $5.0 million, our insurance may be insufficient to reimburse us for any expenses or losses we may suffer. We will also
likely  be  required  to  increase  our  product  liability  insurance  coverage  for  the  advanced  clinical  trials  that  we  plans  to  initiate.  If  we  obtain
marketing  approval  for  any  of  our  product  candidates,  we  will  need  to  expand  our  insurance  coverage  to  include  the  sale  of  commercial
products.  There  is  no  way  to  know  if  we  will  be  able  to  continue  to  obtain  product  liability  coverage  and  obtain  expanded  coverage  if  we
requires  it,  in  sufficient  amounts  to  protect  us  against  losses  due  to  liability,  on  acceptable  terms,  or  at  all.  We  may  not  have  sufficient
resources  to  pay  for  any  liabilities  resulting  from  a  claim  excluded  from,  or  beyond  the  limits  of,  our  insurance  coverage.  Where  we  have
provided  indemnities  in  favor  of  third  parties,  there  is  also  a  risk  that  these  third  parties  could  incur  liability  and  bring  a  claim  under  such
indemnities. An individual may bring a product liability claim against us alleging that one of our product candidates causes, or is claimed to
have caused, an injury or is found to be unsuitable for consumer use. Any such product liability claims may include allegations of defects in
manufacturing, defects in design, a failure to warn of dangers inherent in the product, negligence, strict liability, and a breach of warranties.
Claims  could  also  be  asserted  under  state  consumer  protection  acts.  Any  product  liability  claim  brought  against  us,  with  or  without  merit,
could result in:

• withdrawal of clinical trial volunteers, investigators, patients or trial sites or limitations on approved indications;

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the inability to commercialize, or if commercialized, decreased demand for, our product candidates;

if commercialized, product recalls, withdrawals of labeling, marketing or promotional restrictions or the need for product modification;

initiation of investigations by regulators;

loss of revenues;

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substantial costs of litigation, including monetary awards to patients or other claimants;

liabilities that substantially exceed our product liability insurance, which we would then be required to pay ourself;

an increase in our product liability insurance rates or the inability to maintain insurance coverage in the future on acceptable terms, if
at all;

the diversion of management’s attention from our business; and

damage to our reputation and the reputation of our products and our technology.

Product liability claims may subject us to the foregoing and other risks, which could have a material adverse effect on our business, financial
condition or results of operations.

Risks Related to our Financial Condition and Capital Requirements

We have incurred losses since our inception, have a limited operating history on which to assess our business, and anticipate that
we will continue to incur significant losses for the foreseeable future which together with our limited working capital, and lack of
revenue from product sales, raises substantial doubt about our financial viability and as to whether we will be able to continue as a
going concern.

Our  auditor’s  report  on  our  financial  statements  for  the  year  ended  December  31,  2021,  includes  an  explanatory  paragraph  related  to  the
existence  of  substantial  doubt  about  our  ability  to  continue  as  a  going  concern.  We  are  a  clinical  development-stage  biopharmaceutical
company  with  a  limited  operating  history.  We  have  no  products  approved  for  commercial  sale  and  have  not  generated  any  revenue  from
product sales. To date, we have primarily financed our operations through equity financings and a grant from CPRIT. We have never been
profitable and have incurred operating losses in each year since inception. Our net losses were $12.8 million and $7.7 million for each of the
years ended December 31, 2021 and December 31, 2020.

We  will  continue  to  require  substantial  additional  capital  to  continue  our  clinical  development  and  potential  commercialization  activities.
Accordingly,  we  will  need  to  raise  substantial  additional  capital  to  continue  to  fund  our  operations.  We  cannot  be  certain  that  additional
funding will be available on acceptable terms, or at all, for a number of reasons, including market conditions, and the pace and results of our
clinical development efforts. Failure to raise capital as and when needed, on favorable terms or at all, would have a negative impact on our
financial condition and our ability to develop our product candidates. The aforementioned factors, which are largely outside of our control,
raise substantial doubt about our ability to continue as a going concern within one year from the date of filing of this annual report. We have
prepared our financial statements on a going concern basis, which contemplates the realization of assets and the satisfaction of liabilities and
commitments in the normal course of business. The financial statements do not include any adjustments relating to the recoverability and
classification of recorded asset amounts or amounts of liabilities that might be necessary should we be unable to continue in existence.

We  have  devoted  substantially  all  our  financial  resources  to  identify,  acquire,  and  develop  our  product  candidates,  including  conducting
clinical trials and providing general and administrative support for our operations. To date, we have financed our operations primarily through
the sale of equity securities. The amount of our future net losses will depend, in part, on the rate of our future expenditures and ability to
obtain  funding  through  equity  or  debt  financings,  strategic  collaborations,  or  grants.  Biopharmaceutical  product  development  is  a  highly
speculative and competitive undertaking and involves a substantial degree of risk. We expect losses to increase as we complete Phase 1
development and advance into Phase 2 development of our lead product candidates. It may be several years, if ever, before we complete
pivotal clinical trials and have a product candidate approved for commercialization. We expect to invest significant funds into the research
and development of our current product candidates to determine the potential to advance these product candidates to regulatory approval.
We expect to be required to expend a significant amount of funds before we know if we have a clinically successful product candidate.

Even if we obtain regulatory approval to market a product candidate, our future revenue will depend upon the size of any markets in which
our product candidates may receive approval, and our ability to achieve sufficient market acceptance, pricing, reimbursement from third-party
payors, and adequate market share for our product candidates in those markets. Even if we obtain adequate market share for our product
candidates, because the potential

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markets in which our product candidates may ultimately receive regulatory approval could be very small, we may never become profitable
despite obtaining such market share and acceptance of our products.

We  expect  to  continue  to  incur  significant  expenses  and  increasing  operating  losses  for  the  foreseeable  future  and  our  expenses  will
increase substantially if and as we:

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continue the clinical development of our product candidates;

continue efforts to discover new product candidates;

undertake the manufacturing of our product candidates or increase volumes manufactured by third parties;

advance our programs into larger, more expensive clinical trials;

initiate additional pre-clinical, clinical, or other trials or studies for our product candidates;

seek regulatory and marketing approvals and reimbursement for our product candidates;

establish  a  sales,  marketing,  and  distribution  infrastructure  to  commercialize  any  products  for  which  we  may  obtain  marketing
approval and market for ourselves;

seek to identify, assess, acquire, and/or develop other product candidates;

• make milestone, royalty or other payments under third-party license agreements;

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seek to maintain, protect, and expand our intellectual property portfolio;

seek to attract and retain skilled personnel; and

experience  any  delays  or  encounters  issues  with  the  development  and  potential  for  regulatory  approval  of  our  clinical  candidates
such as safety issues, clinical trial accrual delays, longer follow-up for planned studies, additional major studies, or supportive studies
necessary to support marketing approval.

Further, the net losses we incur may fluctuate significantly from quarter to quarter and year to year, such that a period-to-period comparison
of our results of operations may not be a good indication of our future performance.

We have never generated any revenue from product sales and may never generate revenue or be profitable.

We have no products approved for commercialization and have never generated any revenue. Our ability to generate revenue and achieve
profitability  depends  on  our  ability,  alone  or  with  strategic  collaborators,  to  successfully  complete  the  development  of,  and  obtain  the
regulatory  and  marketing  approvals  necessary  to  commercialize  one  or  more  of  our  product  candidates.  We  do  not  anticipate  generating
revenue  from  product  sales  for  the  foreseeable  future.  Our  ability  to  generate  future  revenue  from  product  sales  depends  heavily  on  our
success in many areas, including but not limited to:

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completing research and development of our product candidates;

obtaining regulatory and marketing approvals for our product candidates;

• manufacturing product candidates and establishing and maintaining supply and manufacturing relationships with third parties that are
commercially  feasible,  meet  regulatory  requirements  and  our  supply  needs  in  sufficient  quantities  to  meet  market  demand  for  our
product candidates, if approved;

• marketing, launching and commercializing product candidates for which we obtain regulatory and marketing approval, either directly

or with a collaborator or distributor;

gaining market acceptance of our product candidates as treatment options;

addressing any competing products;

protecting and enforcing our intellectual property rights, including patents, trade secrets, and know-how;

negotiating favorable terms in any collaboration, licensing, or other arrangements into which we may enter;

obtaining reimbursement or pricing for our product candidates that supports profitability; and

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attracting, hiring, and retaining qualified personnel.

Even  if  one  or  more  of  the  product  candidates  that  we  develop  is  approved  for  commercial  sale,  we  anticipate  incurring  significant  costs
associated  with  commercializing  any  approved  product  candidate.  Portions  of  our  current  pipeline  of  product  candidates  have  been  in-
licensed  from  third  parties,  which  make  the  commercial  sale  of  such  in-licensed  products  potentially  subject  to  additional  royalty  and
milestone  payments  to  such  third  parties.  We  will  also  have  to  develop,  contract  for  or  acquire  manufacturing  capabilities  to  continue
development  and  potential  commercialization  of  our  product  candidates.  We  will  need  to  develop  or  procure  our  drug  product  in  a
commercially feasible manner in order to successfully commercialize any future approved product; if any. Additionally, if we are not able to
generate revenue from the sale of any approved products, we may never become profitable.

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

We  received  substantial  funding  during  the  year  ended  December  31,  2021  including  reimbursement  from  CPRIT.  Other  than  the  CPRIT
funding, these raises caused significant dilution to stockholders who owned our shares of Common Stock prior to these capital raises. To the
extent  that  we  raise  additional  capital  through  the  sale  of  equity,  convertible  debt  or  other  securities  convertible  into  equity  the  ownership
interest of our stockholders will be diluted, and the terms of these new securities may include liquidation or other preferences that adversely
affect  rights  of  our  equity  holders.  Debt  financing,  if  available  at  all,  would  likely  involve  agreements  that  include  covenants  limiting  or
restricting  our  ability  to  take  specific  actions,  such  as  incurring  additional  debt,  making  capital  expenditures,  making  additional  product
acquisitions, or declaring dividends. If we raise additional funds through strategic collaborations or licensing arrangements with third parties,
we  may  have  to  relinquish  valuable  rights  to  our  product  candidates  or  future  revenue  streams  or  grant  licenses  on  terms  that  are  not
favorable to us. We cannot be assured that we will be able to obtain additional funding when necessary to fund our entire portfolio of product
candidates to meet our projected plans. If we are unable to obtain funding on a timely basis, we may be required to delay or discontinue one
or  more  of  our  development  programs  or  the  commercialization  of  any  product  candidates  or  be  unable  to  expand  our  operations  or
otherwise  capitalize  on  potential  business  opportunities,  which  could  materially  harm  our  business,  financial  condition,  and  results  of
operations.

We  have  also  historically  received  funds  from  state  and  federal  government  grants  for  research  and  development  including  CPRIT.  The
grants have been, and any future government grants and contracts we may receive may be, subject to the risks and contingencies set forth
below  under  the  risk  factor  titled  “Reliance  on  government  funding  for  our  programs  may  add  uncertainty  to  our  research  and
commercialization efforts with respect to those programs that are tied to such funding and may impose requirements that limit our ability to
take specified actions, increase the costs of commercialization and production of product candidates developed under those programs and
subject  us  to  potential  financial  penalties,  which  could  materially  and  adversely  affect  our  business,  financial  condition  and  results  of
operations.” Although we might apply for government contracts and grants in the future, we cannot assure you that we will be successful in
obtaining  additional  grants  for  any  product  candidates  or  programs.  Failure  to  receive  additional  government  grants  in  the  future  may
substantially harm our business.

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Risks Related to Regulatory Approval of our Product Candidates and Other Legal Compliance Matters

We  may  seek  breakthrough  therapy  designation  by  the  FDA  for  one  or  more  of  our  product  candidates,  but  it  might  not  receive
such  designation.  Even  if  FDA  grants  breakthrough  therapy  designation  for  one  or  more  of  our  product  candidates,  the
designation may not lead to a faster development or regulatory review or approval process, and it does not increase the likelihood
that  our  product  candidates  will  receive  marketing  approval,  and  FDA  may  rescind  the  designation  if  it  determines  the  product
candidate no longer meets the qualifying criteria for breakthrough therapy.

We may seek a breakthrough therapy designation from the FDA for some of our product candidates that reach the regulatory review process.
A breakthrough therapy is defined as a drug or biological product that is intended, alone or in combination with one or more other drugs, to
treat  a  serious  or  life-threatening  disease  or  condition,  and  preliminary  clinical  evidence  indicates  that  the  drug  or  biological  product  may
demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints, such as substantial treatment
effects  observed  early  in  clinical  development.  For  drugs  or  biological  products  that  have  been  designated  as  breakthrough  therapies,
interaction  and  communication  between  the  FDA  and  the  sponsor  of  the  trial  can  help  to  identify  the  most  efficient  path  for  clinical
development while minimizing the number of patients placed in ineffective control regimens. Drugs designated as breakthrough therapies by
the FDA could also be eligible for accelerated approval.

Designation  as  a  breakthrough  therapy  is  within  the  discretion  of  the  FDA.  Accordingly,  even  if  we  believe  one  of  our  product  candidates
meets the criteria for designation as a breakthrough therapy, the FDA may disagree and instead determine not to make such designation.

The receipt of a breakthrough therapy designation for a product candidate may not result in a faster development process, review or approval
compared  to  drugs  considered  for  approval  under  conventional  FDA  procedures  and  does  not  assure  ultimate  approval  by  the  FDA.  In
addition, even if one or more of our product candidates qualify and are designated as breakthrough therapies, the FDA may later decide that
the drugs or biological products no longer meet the conditions for designation and the designation may be rescinded.

We have received Fast Track designation for one of our product candidates, but such designation may not actually lead to a faster
development or regulatory review or approval process. Additionally, FDA may rescind the designation if it determines the product
candidate no longer meets the qualifying criteria for Fast Track.

If a product candidate is intended for the treatment of a serious condition and nonclinical or clinical data demonstrate the potential to address
unmet  medical  need  for  this  condition,  a  product  sponsor  may  apply  for  FDA  Fast  Track  designation.  We  recently  received  Fast  Track
designation  for  a  product  candidate.  However,  Fast  Track  designation  does  not  ensure  that  we  will  receive  marketing  approval  or  that
approval  will  be  granted  within  any  particular  time  frame.  We  may  not  experience  a  faster  development  or  regulatory  review  or  approval
process with Fast Track designation compared to conventional FDA procedures. In addition, the FDA may withdraw Fast Track designation if
it believes that the designation is no longer supported by data from our clinical development program. Fast Track designation alone does not
guarantee qualification for the FDA’s priority review procedures.

We cannot guarantee how long it will take regulatory agencies to review our applications for product candidates, and we may fail
to  obtain  the  necessary  regulatory  approvals  to  market  our  product  candidates.  If  we  are  not  able  to  obtain  required  regulatory
approvals,  we  will  not  be  able  to  commercialize  our  product  candidates  and  our  ability  to  generate  revenue  will  be  materially
impaired.

Our product candidates and the activities associated with their development and commercialization, including their design, research, testing,
manufacture, safety, efficacy, recordkeeping, labeling, packaging, storage, approval, advertising, promotion, sale and distribution, are subject
to  comprehensive  regulation  by  the  FDA  and  other  regulatory  agencies  in  the  United  States  and  foreign  jurisdictions.  Failure  to  obtain
marketing approval for our product candidates will prevent us from commercializing them in those markets.

We have not received approval from regulatory authorities to market any product candidate in any jurisdiction, and it is possible that neither
our  current  product  candidates  nor  any  product  candidates  that  we  may  seek  to  develop  in  the  future  will  ever  obtain  the  appropriate
regulatory approvals necessary for us to commence product sales.

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Securing  marketing  approval  requires  the  submission  of  extensive  preclinical  and  clinical  data  and  supporting  information  to  regulatory
authorities for each therapeutic indication of each of our product candidates to establish the product candidates’ safety and efficacy for such
indications.  Securing  marketing  approval  also  requires  the  submission  of  information  about  the  product  manufacturing  process  to,  and
inspection of manufacturing facilities by, regulatory authorities.

The pathway to regulatory approvals is time consuming and unpredictable, involves substantial costs and consumes management time and
attention. It is not possible to predict the timing or success of obtaining regulatory approvals with any degree of certainty, and as a result, it is
difficult to forecast our future financial results or prospects. Any unexpected development in the regulatory approval process, including delays
or  denials  of  regulatory  approvals  or  significant  modifications  to  our  product  candidates  required  by  our  regulators,  could  materially  and
adversely affect our business, results of operations and financial condition, and could substantially harm our stock price.

To obtain marketing approval, United States laws require:

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controlled research and human clinical testing;
establishment of the safety and efficacy of the product for each use sought;
government review and approval of a submission containing, among other things, manufacturing, pre-clinical and clinical data; and
compliance with cGMP regulations.

The  process  of  reviewing  and  approving  a  drug  is  time-consuming,  unpredictable,  and  dependent  on  a  variety  of  factors  outside  of  our
control. The FDA and corresponding regulatory authorities in other jurisdictions have a significant amount of discretion in deciding whether or
not  to  approve  a  marketing  application.  Our  product  candidates  could  fail  to  receive  regulatory  approval  from  the  FDA  or  comparable
regulatory authorities outside the United States for several reasons, including:

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disagreement with the design or implementation of our clinical trials;
failure to demonstrate that our candidate is safe and effective for the proposed indication;
failure of clinical trial results to meet the level of statistical significance required for approval;
failure to demonstrate that the product candidate’s benefits outweigh its risks;
disagreement with our interpretation of pre-clinical or clinical data; and
inadequacies in the manufacturing facilities or processes of third-party manufacturers.
The FDA or a comparable regulatory authority outside the United States may require us to conduct additional pre-clinical and clinical
testing, which may delay or prevent approval and our commercialization plans or cause us to abandon the development program.
Further,  any  approval  we  receive  may  be  for  fewer  or  more  limited  indications  than  we  request,  may  not  include  labeling  claims
necessary  for  successful  commercialization  of  the  product  candidate,  or  may  be  contingent  upon  our  conducting  costly  post-
marketing  clinical  trials.  Any  of  these  scenarios  could  materially  harm  the  commercial  prospects  of  a  product  candidate,  and  our
operations will be adversely effected.

Even if we obtain regulatory approval for a product, we will remain subject to ongoing regulatory requirements, which may result in
significant  additional  expense  and  other  restrictions,  and  we  may  be  subject  to  penalties  if  we  fail  to  comply  with  regulatory
requirements or experience unanticipated problems with our product candidates.

If any of our product candidates are approved, we will be subject to ongoing regulatory requirements with respect to manufacturing, labeling,
packaging, storage, marketing, advertising, promotion, sampling, record-keeping, conduct of post-marketing clinical trials, and submission of
safety, efficacy and other post-approval information, including both federal and state requirements in the United States and requirements of
comparable foreign regulatory authorities.

Manufacturers  and  manufacturers’  facilities  are  required  to  continuously  comply  with  FDA  and  comparable  foreign  regulatory  authority
requirements, including ensuring that quality control and manufacturing procedures conform to cGMP, regulations and corresponding foreign
regulatory manufacturing requirements. As such, we and our contract

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manufacturers will be subject to continual review and inspections to assess compliance with cGMP and adherence to commitments made in
any NDA or marketing authorization application.

Any regulatory approvals that we receive for our product candidates may be subject to limitations on the approved indicated uses for which
the product candidate may be marketed or to the conditions of approval, or contain requirements for potentially costly post-marketing testing,
including Phase 4 clinical trials, and surveillance to monitor the safety and efficacy of the product candidate. We will be required to report
adverse reactions and production problems, if any, to the FDA and comparable foreign regulatory authorities. Any new legislation addressing
drug  safety  issues  could  result  in  delays  in  product  development  or  commercialization,  or  increased  costs  to  assure  compliance.  If  our
original marketing approval for a product candidate was obtained through an accelerated approval pathway, we could be required to conduct
a successful post-marketing clinical trial in order to confirm the clinical benefit for our products. An unsuccessful post-marketing clinical trial
or failure to complete such a trial could result in the withdrawal of marketing approval.

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

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issue fines, untitled letters or warning letters;

impose civil or criminal penalties;

suspend or withdraw regulatory approval;

suspend any of our ongoing clinical trials;

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

product seizure or detention or refusal to permit the import or export of products;

impose restrictions on our operations, including closing our contract manufacturers’ facilities; or

impose  restrictions  on  the  marketing  or  manufacturing  of  the  product,  withdrawal  of  the  product  from  the  market  or  voluntary  or
mandatory product recalls.

Any  government  investigation  of  alleged  violations  of  law  would  be  expected  to  require  us  to  expend  significant  time  and  resources  in
response and could generate adverse publicity. Any failure to comply with ongoing regulatory requirements may significantly and adversely
affect our ability to develop and commercialize our products and our value and our operating results would be adversely affected.

Healthcare reform measures may have a material adverse effect on our business, financial condition or results of operations.

In the United States, there have been and continue to be a number of initiatives to contain healthcare costs or otherwise change or reform
the  provision  of  healthcare  products  and  services  to  the  patient  population.  For  example,  in  March  2010,  the  ACA  was  enacted,  which
substantially  changed  the  way  health  care  is  financed  by  both  governmental  and  private  insurers,  and  significantly  impacts  the  U.S.
pharmaceutical industry. The ACA, among other things, addresses a new methodology by which rebates owed by manufacturers under the
Medicaid Drug Rebate Program are calculated for drugs that are inhaled, infused, instilled, implanted, or injected, increased the minimum
Medicaid rebates owed by manufacturers under the Medicaid Drug Rebate Program and extended the rebate program to individuals enrolled
in Medicaid managed care organizations, established annual fees and taxes on manufacturers of specified branded prescription drugs, and
established a new Medicare Part D coverage gap discount program. Certain provisions of the ACA have been subject to judicial challenges,
as well as efforts to modify them or alter their interpretation or implementation. It is unclear how efforts to challenge or modify the ACA or its
implementing regulations, or portions thereof, will affect our business.

In addition, other legislative changes have been proposed and adopted in the United States since the ACA was enacted and we expect that
additional state and federal healthcare reform measures will be adopted in the future,

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any of which could result in more rigorous coverage criteria and in additional downward pressure on the price that we receive for our product
candidates, if commercialized, and could seriously harm our future revenues. Any reduction in reimbursement from Medicare, Medicaid, or
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  us  from  being  able  to  generate  revenues,  attain  profitability,  or  successfully
commercialize our product candidates.

We  may  be  subject,  directly  or  indirectly,  to  federal  and  state  healthcare  fraud  and  abuse  laws,  false  claims  laws,  and  health
information  privacy  and  security  laws.  If  we  are  unable  to  comply,  or  have  not  fully  complied,  with  such  laws,  we  could  face
substantial penalties.

If we obtain FDA approval for any of our product candidates and begins commercializing those products in the United States, our operations
may be subject to various federal and state fraud and abuse laws, including, without limitation, the federal Anti-Kickback Statute, the federal
False Claims Act, and physician sunshine laws and regulations. These laws may impact, among other things, our proposed sales, marketing,
and education programs. In addition, we may be subject to patient privacy regulation by both the federal government and the states in which
we conduct our business. The laws that may affect our ability to operate include:

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the  federal  Anti-Kickback  Statute,  which  prohibits,  among  other  things,  persons  from  knowingly  and  willfully  soliciting,  receiving,
offering or paying remuneration, directly or indirectly, to induce, or in return for, the purchase or recommendation of an item or service
reimbursable under a federal healthcare program, such as the Medicare and Medicaid programs;

federal civil and criminal false claims laws and civil monetary penalty laws, 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;

• HIPAA, which created new federal criminal statutes that prohibit executing a scheme to defraud any healthcare benefit program and

making false statements relating to healthcare matters;

• HIPAA, as amended by the Health Information Technology and Clinical Health Act, and its implementing regulations, which imposes

specified requirements relating to the privacy, security, and transmission of individually identifiable health information;

•

•

the  federal  physician  sunshine  requirements  under  the  Health  Care  Reform  Laws  requires  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  and  applicable  group
purchasing organizations; and

state  law  equivalents  of  each  of  the  above  federal  laws,  such  as  anti-kickback  and  false  claims  laws  that  may  apply  to  items  or
services  reimbursed  by  any  third-party  payor,  including  governmental  and  private  payors,  to  comply  with  the  pharmaceutical
industry’s  voluntary  compliance  guidelines  and  the  relevant  compliance  guidance  promulgated  by  the  federal  government,  or
otherwise restrict payments that may be made to healthcare providers and other potential referral sources; state laws that require
drug  manufacturers  to  report  information  related  to  payments  and  other  transfers  of  value  to  physicians  and  other  healthcare
providers  or  marketing  expenditures,  and  state  laws  governing  the  privacy  and  security  of  health  information  in  specified
circumstances,  many  of  which  differ  from  each  other  in  significant  ways  and  may  not  have  the  same  effect,  thus  complicating
compliance efforts.

Because of the breadth of these laws and the narrowness of the statutory exceptions and safe harbors available, it is possible that some of
our business activities could be subject to challenge under one or more of such laws. In addition, recent health care reform legislation has
strengthened these laws. For example, the Health Care Reform Law, among other things, amends the intent requirement of the federal anti-
kickback and criminal healthcare fraud statutes. A person or entity no longer needs to have actual knowledge of this statute or specific intent
to  violate  it.  Moreover,  the  Health  Care  Reform  Law  provides  that  the  government  may  assert  that  a  claim  including  items  or  services
resulting from a violation of the federal anti-kickback statute constitutes a false or fraudulent claim for purposes of the False Claims Act.

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If our operations are found to be in violation of any of the laws described above or any other governmental regulations that apply to us, we
may  be  subject  to  penalties,  including  civil  and  criminal  penalties,  damages,  fines,  exclusion  from  participation  in  government  health  care
programs,  such  as  Medicare  and  Medicaid,  imprisonment,  and  the  curtailment  or  restructuring  of  our  operations,  any  of  which  could
adversely affect our ability to operate our business and our results of operations.

Reliance on government funding for our programs may add uncertainty to our research and commercialization efforts with respect
to  those  programs  that  are  tied  to  such  funding  and  may  impose  requirements  that  limit  our  ability  to  take  specified  actions,
increase the costs of commercialization and production of product candidates developed under those programs and subject us to
potential  financial  penalties,  which  could  materially  and  adversely  affect  our  business,  financial  condition  and  results  of
operations.

During the course of our development of our product candidates, we have been funded in part through federal and state grants, including but
not limited to the funding we received from CPRIT. If CPRIT terminates the agreement prior to the expiration due to an event of default or if
we terminate the agreement, CPRIT may require us to repay some or all of the disbursed grant.

In addition to the funding we have received to date, we intend to continue to apply for federal and state grants to receive additional funding in
the future. Contracts and grants funded by the U.S. government, state governments and their related agencies include provisions that reflect
the  government’s  substantial  rights  and  remedies,  many  of  which  are  not  typically  found  in  commercial  contracts,  including  powers  of  the
government to:

•

•

•

•

•

•

•

•

•

•

•

•

require  repayment  of  all  or  a  portion  of  the  grant  proceeds,  in  specified  cases  with  interest,  in  the  event  we  violate  specified
covenants pertaining to various matters that include a failure to achieve specified milestones or to comply with terms relating to use
of grant proceeds, or failure to comply with specified laws;

terminate agreements, in whole or in part, for any reason or no reason;

reduce or modify the government’s obligations under such agreements without the consent of the other party;

claim rights, including intellectual property rights, in products and data developed under such agreements;

audit contract related costs and fees, including allocated indirect costs;

suspend  the  contractor  or  grantee  from  receiving  new  contracts  pending  resolution  of  alleged  violations  of  procurement  laws  or
regulations;

impose  U.S.  manufacturing  requirements  for  products  that  embody  inventions  conceived  or  first  reduced  to  practice  under  such
agreements;

impose  qualifications  for  the  engagement  of  manufacturers,  suppliers  and  other  contractors  as  well  as  other  criteria  for
reimbursements;

suspend or debar the contractor or grantee from doing future business with the government;

control and potentially prohibit the export of products;

pursue  criminal  or  civil  remedies  under  the  False  Claims  Act,  False  Statements  Act  and  similar  remedy  provisions  specific  to
government agreements; and

limit the government’s financial liability to amounts appropriated by the U.S. Congress on a fiscal year basis, thereby leaving some
uncertainty about the future availability of funding for a program even after it has been funded for an initial period.

In  addition  to  those  powers  set  forth  above,  the  government  funding  we  may  receive  could  also  impose  requirements  to  make  payments
based upon sales of our products, if any, in the future.

We may not have the right to prohibit the U.S. government from using specified technologies developed by us, and we may not be able to
prohibit third-party companies, including our competitors, from using those technologies in

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providing products and services to the U.S. government. The U.S. government generally takes the position that it has the right to royalty-free
use of technologies that are developed under U.S. government contracts. These and other provisions of government grants may also apply
to intellectual property we license now or in the future.

In addition, government contracts and grants normally contain additional requirements that may increase our costs of doing business, reduce
our profits, and expose us to liability for failure to comply with these terms and conditions. These requirements include, for example:

•

specialized accounting systems unique to government contracts and grants;

• mandatory  financial  audits  and  potential  liability  for  price  adjustments  or  recoupment  of  government  funds  after  such  funds  have

been spent;

•

public disclosures of some contract and grant information, which may enable competitors to gain insights into our research program;
and

• mandatory  socioeconomic  compliance  requirements,  including  labor  standards,  non-discrimination  and  affirmative  action  programs

and environmental compliance requirements.

If we fail to maintain compliance with any such requirements that may apply to us now or in the future, we may be subject to potential liability
and to termination of our contracts.

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

our research and development activities and our third-party manufacturers’ and suppliers’ activities involve the controlled storage, use, and
disposal  of  hazardous  materials,  including  the  components  of  our  product  candidates  and  other  hazardous  compounds.  We  and  our
manufacturers and suppliers are subject to laws and regulations governing the use, manufacture, storage, handling, and disposal of these
hazardous  materials.  In  some  cases,  these  hazardous  materials  and  various  wastes  resulting  from  their  use  are  stored  at  our  and  our
manufacturers’ facilities pending their use and disposal. We cannot eliminate the risk of contamination, which could cause an interruption of
our commercialization efforts, research and development efforts and business operations, environmental damage resulting in costly clean-up
and  liabilities  under  applicable  laws  and  regulations  governing  the  use,  storage,  handling,  and  disposal  of  these  materials  and  specified
waste products. Although we believe that the safety procedures utilized by us and our third-party manufacturers for handling and disposing of
these materials generally comply with the standards prescribed by these laws and regulations, we cannot guarantee that this is the case or
eliminate  the  risk  of  accidental  contamination  or  injury  from  these  materials.  In  such  an  event,  we  may  be  held  liable  for  any  resulting
damages and such liability could exceed our resources and state or federal or other applicable authorities may curtail our use of specified
materials  and/or  interrupt  our  business  operations.  Furthermore,  environmental  laws  and  regulations  are  complex,  change  frequently,  and
have tended to become more stringent. We cannot predict the impact of such changes and cannot be certain of our future compliance. We
do not currently carry biological or hazardous waste insurance coverage.

Risks Related to our Intellectual Property

We may not be successful in obtaining or maintaining necessary rights to our targets, product compounds and processes for our
development pipeline through acquisitions and in-licenses.

Presently, we have rights to the intellectual property, through licenses from third parties and under patents and patent applications that we
own, to modulate only a subset of the known epigenetic enzyme targets. Because our programs may involve a range of targets, including
targets that require the use of proprietary rights held by third parties, the growth of our business may depend in part on our ability to acquire,
in-license  or  use  these  proprietary  rights.  In  addition,  our  product  candidates  may  require  specific  formulations  to  work  effectively  and
efficiently and these rights may be held by others. We may be unable to acquire or in-license any compositions, methods of use, processes
or  other  third-party  intellectual  property  rights  from  third  parties  that  we  identify.  The  licensing  and  acquisition  of  third-party  intellectual
property rights is a competitive area, and a number of more established companies are also pursuing strategies to license or acquire third-
party intellectual property rights that we may consider attractive. These established companies may have a competitive advantage over us
due to their size, cash resources and greater clinical development and commercialization capabilities.

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For  example,  we  have  previously  and  may  continue  to  collaborate  with  academic  institutions  worldwide  to  accelerate  our  pre-clinical  and
clinical research or development under written agreements with these institutions. Typically, these institutions provide an option to negotiate a
license  to  any  of  the  institution’s  rights  in  technology  resulting  from  the  collaboration.  Regardless  of  such  right  of  first  negotiation  for
intellectual property, we may be unable to negotiate a license within the specified time frame or under terms that are acceptable to us. If we
are  unable  to  do  so,  the  institution  may  offer  the  intellectual  property  rights  to  other  parties,  potentially  blocking  our  ability  to  pursue  our
program.

In  addition,  companies  that  perceive  us  to  be  a  competitor  may  be  unwilling  to  assign  or  license  rights  to  us.  We  also  may  be  unable  to
license or acquire third-party intellectual property rights on terms that would allow us to make an appropriate return on our investment. If we
are unable to successfully obtain rights to third-party intellectual property rights, our business, financial condition and prospects for growth
could suffer.

We  intend  to  rely  on  patent  rights  for  our  product  candidates  and  any  future  product  candidates.  If  we  are  unable  to  obtain  or
maintain exclusivity from the combination of these approaches, we may not be able to compete effectively in our markets.

We rely or will rely upon a combination of patents, trade secret protection, and confidentiality agreements to protect the intellectual property
related to our technologies and product candidates. Our success depends in large part on our and our licensors’ ability to obtain regulatory
exclusivity and maintain patent and other intellectual property protection in the United States and in other countries with respect to our
proprietary technology and products.

We  have  sought  to  protect  our  proprietary  position  by  filing  patent  applications  in  the  United  States  and  abroad  related  to  our  product
candidates that are important to our business. This 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  position  of  biotechnology  and  pharmaceutical  companies  generally  is  highly  uncertain  and  involves  complex  legal  and  factual
questions for which legal principles remain unsolved. The patent applications that we own or in-licenses may fail to result in issued patents
with  claims  that  cover  our  product  candidates  in  the  United  States  or  in  other  foreign  countries.  There  is  no  assurance  that  all  potentially
relevant  prior  art  relating  to  our  patents  and  patent  applications  has  been  found,  which  can  invalidate  a  patent  or  prevent  a  patent  from
issuing from a pending patent application. Even if patents do successfully issue, and even if such patents cover our product candidates, third
parties  may  challenge  their  validity,  enforceability,  or  scope,  which  may  result  in  such  patents  being  narrowed,  found  unenforceable  or
invalidated.  Furthermore,  even  if  they  are  unchallenged,  our  patents  and  patent  applications  may  not  adequately  protect  our  intellectual
property, provide exclusivity for our product candidates, or prevent others from designing around our claims. Any of these outcomes could
impair our ability to prevent competition from third parties, which may have an adverse impact on our business.

We, independently or together with our licensors, have filed several patent applications covering various aspects of our product candidates.
We cannot offer any assurances about which, if any, patents will issue, the breadth of any such patent or whether any issued patents will be
found invalid and unenforceable or will be threatened by third parties. Any successful opposition to these patents or any other patents owned
by  or  licensed  to  us  after  patent  issuance  could  deprive  us  of  rights  necessary  for  the  successful  commercialization  of  any  product
candidates that we may develop. Further, if we encounter delays in regulatory approvals, the period of time during which we could market a
product candidate under patent protection could be reduced.

If we cannot obtain and maintain effective protection of exclusivity from our regulatory efforts and intellectual property rights, including patent
protection  or  data  exclusivity,  for  our  product  candidates,  we  may  not  be  able  to  compete  effectively  and  our  business  and  results  of
operations would be harmed.

We may not have sufficient patent term protections for our product candidates to effectively protect our business.

Patents have a limited term. In the United States, the statutory expiration of a patent is generally 20 years after it is filed. Although various
extensions may be available, the life of a patent, and the protection it affords, is limited. Even if patents covering our product candidates are
obtained,  once  the  patent  life  has  expired  for  a  product  candidate,  we  may  be  open  to  competition  from  generic  medications.  In  addition,
upon issuance in the United States any patent

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term can be adjusted based on specified delays caused by the applicant(s) or the U.S. Patent and Trademark Office (“USPTO”).

Patent term extensions under the Hatch-Waxman Act in the United States and under supplementary protection certificates in Europe may be
available  to  extend  the  patent  or  data  exclusivity  terms  of  our  product  candidates.  We  will  likely  rely  on  patent  term  extensions,  and  we
cannot provide any assurances that any such patent term extensions will be obtained and, if so, for how long. As a result, we may not be
able to maintain exclusivity for our product candidates for an extended period after regulatory approval, if any, which would negatively impact
our  business,  financial  condition,  results  of  operations  and  prospects.  If  we  do  not  have  sufficient  patent  terms  or  regulatory  exclusivity  to
protect our product candidates, our business and results of operations will be adversely affected.

Changes  in  U.S.  patent  law  could  diminish  the  value  of  patents  in  general,  thereby  impairing  our  ability  to  protect  our  products,
and  recent  patent  reform  legislation  could  increase  the  uncertainties  and  costs  surrounding  the  prosecution  of  our  patent
applications and the enforcement or defense of our issued patents.

As is the case with other biotechnology companies, our success is heavily dependent on patents and the ability to enforce and protect these
patients.  Obtaining  and  enforcing  patents  in  the  biotechnology  industry  involve  both  technological  and  legal  complexity,  and  is  therefore
costly,  time-consuming  and  inherently  uncertain.  In  addition,  the  United  States  has  recently  enacted  and  is  currently  implementing  wide-
ranging  patent  reform  legislation.  Recent  U.S.  Supreme  Court  rulings  have  narrowed  the  scope  of  patent  protection  available  in  specified
circumstances and weakened the rights of patent owners in specified situations. In addition to increasing uncertainty with regard to our ability
to  obtain  patents  in  the  future,  this  combination  of  events  has  created  uncertainty  with  respect  to  the  value  of  patents,  once  obtained.
Depending on decisions by the U.S. Congress, the federal courts, and the USPTO, the laws and regulations governing patents could change
in unpredictable ways that would weaken our ability to obtain new patents or to enforce our existing patents and patents that we might obtain
in the future. Some of our patent claims may be affected by the recent U.S. Supreme Court decision in Association for Molecular Pathology v.
Myriad Genetics. In Myriad, the Supreme Court held that unmodified isolated fragments of genomic sequences, such as the DNA constituting
the BRCA1 and BRCA2 genes, are not eligible for patent protection because they constitute a product of nature. The exact boundaries of the
Supreme Court’s decision remain unclear as the Supreme Court did not address other types of nucleic acids.

On December 16, 2014, the USPTO issued guidance to patent examiners titled 2014 Interim Guidance on Patent Subject Matter Eligibility
(Fed. Reg. 79 (241): 74618-33. These guidelines instruct USPTO examiners on the ramifications of the Prometheus and Myriad rulings and
apply the Myriad ruling to natural products and principles including all naturally occurring nucleic acids. In addition, the USPTO continues to
provide updates to its guidance and this is a developing area. The recent USPTO guidance could make it impossible for us to pursue similar
patent claims in patent applications we may prosecute in the future.

Our  patent  portfolio  contains  claims  of  various  types  and  scope,  including  chemically  modified  mimics,  as  well  as  methods  of  medical
treatment.  The  presence  of  varying  claims  in  our  patent  portfolio  significantly  reduces,  but  may  not  eliminate,  our  exposure  to  potential
validity  challenges  under  Myriad  or  future  judicial  decisions.  However,  it  is  not  yet  clear  what,  if  any,  impact  this  recent  Supreme  Court
decision or future decisions will have on the operation of our business.

For our U.S. patent applications containing a claim not entitled to priority before March 16, 2013, there is a greater level of uncertainty in the
patent law. On September 16, 2011, the Leahy-Smith America Invents Act (the “Leahy-Smith Act”) was signed into law. The Leahy-Smith Act
includes  a  number  of  significant  changes  to  U.S.  patent  law.  These  include  provisions  that  affect  the  way  patent  applications  will  be
prosecuted  and  may  also  affect  patent  litigation.  The  USPTO  has  promulgated  regulations  and  developed  procedures  to  govern
administration  of  the  Leahy-Smith  Act,  and  many  of  the  substantive  changes  to  patent  law  associated  with  the  Leahy-Smith  Act,  and  in
particular,  the  first  to  file  provisions,  did  not  come  into  effect  until  March  16,  2013.  Accordingly,  it  is  not  yet  clear  what,  if  any,  impact  the
Leahy-Smith  Act  will  have  on  the  operation  of  our  business.  However,  the  Leahy-Smith  Act  and  its  implementation  could  increase  the
uncertainties and costs surrounding the prosecution of our patent applications and the enforcement or defense of our issued patents, all of
which could have a material adverse effect on our business, financial condition or results of operations.

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An important change introduced by the Leahy-Smith Act is that, as of March 16, 2013, the United States transitioned to a “first-to-file” system
for deciding which party should be granted a patent when two or more patent applications are filed by different parties claiming the same
invention. Under such change, a third party that files a patent application in the USPTO after that date, but before we could, may be awarded
a  patent  covering  an  invention  of  our  even  if  we  had  made  the  invention  before  it  was  made  by  the  third  party.  This  will  require  us  to  be
cognizant going forward of the time from invention to filing of a patent application. Furthermore, our ability to obtain and maintain valid and
enforceable patents depends on whether the differences between our technology and the prior art allow our technology to be patentable over
the  prior  art.  Since  patent  applications  in  the  United  States  and  most  other  countries  are  confidential  for  a  period  of  time  after  filing,  we
cannot  be  certain  that  we  were  the  first  to  either  (i)  file  any  patent  application  related  to  our  product  candidates  or  (ii)  invent  any  of  the
inventions claimed in our patents or patent applications.

Among some of the other changes introduced by the Leahy-Smith Act are changes that limit where a patentee may file a patent infringement
suit  and  new  procedures  providing  opportunities  for  third  parties  to  challenge  any  issued  patent  in  the  USPTO.  Included  in  these  new
procedures is a process known as Inter Partes Review (“IPR”), which has been generally used by many third parties over the past two years
to invalidate patents. The IPR process is not limited to patents filed after the Leahy-Smith Act was enacted, and would therefore be available
to  a  third  party  seeking  to  invalidate  any  of  our  U.S.  patents,  even  those  issued  before  March  16,  2013.  Because  of  a  lower  evidentiary
standard in USPTO proceedings compared to the evidentiary standard in U.S. federal court necessary to invalidate a patent claim, a third
party  could  potentially  provide  evidence  in  a  USPTO  proceeding  sufficient  for  the  USPTO  to  hold  a  claim  invalid  even  though  the  same
evidence would be insufficient to invalidate the claim if first presented in a district court action. Accordingly, a third party may attempt to use
the  USPTO  procedures  to  invalidate  our  patent  claims  that  would  not  have  been  invalidated  if  first  challenged  by  the  third  party  as  a
defendant in a district court action.

If we are unable to maintain effective proprietary rights for our product candidates or any future product candidates, we may not be
able to compete effectively in our proposed markets.

In  addition  to  the  protection  afforded  by  patents,  we  rely  on  trade  secret  protection  and  confidentiality  agreements  to  protect  proprietary
know-how that is not patentable or that we elect not to patent, processes for which patents are difficult to enforce and any other elements of
our product candidate discovery and development processes that involve proprietary know-how, information or technology that is not covered
by  patents.  However,  trade  secrets  can  be  difficult  to  protect.  We  seek  to  protect  our  proprietary  technology  and  processes,  in  part,  by
entering into confidentiality agreements with our employees, consultants, scientific advisors, and contractors. We also seeks to preserve the
integrity and confidentiality of our data and trade secrets by maintaining physical security of our premises and physical and electronic security
of our information technology systems. While we have confidence in these individuals, organizations and systems, agreements or security
measures may be breached, and we may not have adequate remedies for any breach. In addition, our trade secrets may otherwise become
known or be independently discovered by competitors.

Although we expect all of our employees and consultants to assign their inventions to us, and all of our employees, consultants, advisors,
and any third parties who have access to our proprietary know- how, information, or technology to enter into confidentiality agreements, we
cannot provide any assurances that all such agreements have been duly executed or that our trade secrets and other confidential proprietary
information will not be disclosed or that competitors will not otherwise gain access to our trade secrets or independently develop substantially
equivalent information and techniques. Misappropriation or unauthorized disclosure of our trade secrets could impair our competitive position
and  may  have  a  material  adverse  effect  on  our  business,  financial  condition  or  results  of  operations.  Additionally,  if  the  steps  taken  to
maintain  our  trade  secrets  are  deemed  inadequate,  we  may  have  insufficient  recourse  against  third  parties  for  misappropriating  the  trade
secret.

Third-party claims of intellectual property infringement may prevent or delay our development and commercialization efforts.

Our  commercial  success  depends  in  part  on  our  ability  to  develop,  manufacture,  market  and  sell  our  product  candidates  and  use  our
proprietary technology without infringing the patent rights of third parties.

Numerous  third-party  U.S.  and  non-U.S.  issued  patents  and  pending  applications  exist  in  the  area  of  epigenetic  enzyme  inhibitors  and
related technologies. We are aware of U.S. and foreign patents and pending patent applications owned by third parties that cover therapeutic
uses of epigenetic inhibitors. We are currently monitoring

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these patents and patent applications. We may in the future pursue available proceedings in the U.S. and foreign patent offices to challenge
the validity of these patents and patent applications. In addition, or alternatively, we may consider whether to seek to negotiate a license of
rights to technology covered by one or more of such patents and patent applications. If any patents or patent applications cover our product
candidates or technologies, we may not be free to manufacture or market our product candidates, as planned, absent such a license, which
may not be available to us on commercially reasonable terms, or at all.

It is also possible that we have failed to identify relevant third-party patents or applications. For example, applications filed before November
29, 2000 and applications filed after that date that will not be filed outside the United States remain confidential until patents issue. Moreover,
it is difficult for industry participants, including us, to identify all third-party patent rights that may be relevant to our product candidates and
technologies because patent searching is imperfect due to differences in terminology among patents, incomplete databases and the difficulty
in  assessing  the  meaning  of  patent  claims.  We  may  fail  to  identify  relevant  patents  or  patent  applications  or  may  identify  pending  patent
applications of potential interest but incorrectly predict the likelihood that such patent applications may issue with claims of relevance to our
technology.  In  addition,  we  may  be  unaware  of  one  or  more  issued  patents  that  would  be  infringed  by  the  manufacture,  sale  or  use  of  a
current or future product candidate, or we may incorrectly conclude that a third-party patent is invalid, unenforceable or not infringed by our
activities.  Additionally,  pending  patent  applications  that  have  been  published  can,  subject  to  specified  limitations,  be  later  amended  in  a
manner that could cover our technologies, our product candidates or the use of our product candidates.

There  have  been  many  lawsuits  and  other  proceedings  involving  patent  and  other  intellectual  property  rights  in  the  biotechnology  and
pharmaceutical  industries,  including  patent  infringement  lawsuits,  interferences,  oppositions,  and  reexamination  proceedings  before  the
USPTO  and  corresponding  foreign  patent  offices.  Numerous  U.S.  and  foreign  issued  patents  and  pending  patent  applications,  which  are
owned by third parties, exist in the fields in which we are developing product candidates. As the biotechnology and pharmaceutical industries
expand and more patents are issued, the risk increases that our product candidates may be subject to claims of infringement of the patent
rights of third parties.

Parties making claims against we may obtain injunctive or other equitable relief, which could effectively block our ability to further develop
and  commercialize  one  or  more  of  our  product  candidates.  Defense  of  these  claims,  regardless  of  their  merit,  would  involve  substantial
litigation  expense  and  would  be  a  substantial  diversion  of  employee  resources  from  our  business.  In  the  event  of  a  successful  claim  of
infringement against us, we may have to pay substantial damages, including treble damages and attorneys’ fees for willful infringement, pay
royalties, redesign our infringing products or obtain one or more licenses from third parties, which may be impossible or require substantial
time and monetary expenditure.

We  may  not  be  successful  in  meeting  our  obligations  under  our  existing  license  agreements  necessary  to  maintain  our  product
candidate licenses in effect. In addition, if required in order to commercialize our product candidates, we may be unsuccessful in
obtaining or maintaining necessary rights to our product candidates through acquisitions and in-licenses.

We currently have rights to the intellectual property, through licenses from third parties and under patents that we do not own, to develop and
commercialize our product candidates. Because our programs may require the use of proprietary rights held by third parties, the growth of
our business will likely depend in part on our ability to maintain in effect these proprietary rights. Any termination of license agreements with
third parties with respect to our product candidates would be expected to negatively impact our business prospects.

We may be unable to acquire or in-license any compositions, methods of use, processes, or other third-party intellectual property rights from
third parties that we identify as necessary for our product candidates.

The licensing and acquisition of third-party intellectual property rights is a competitive area, and a number of more established companies are
also  pursuing  strategies  to  license  or  acquire  third-party  intellectual  property  rights  that  we  may  consider  attractive.  These  established
companies  may  have  a  competitive  advantage  over  us  due  to  their  size,  cash  resources,  and  greater  clinical  development  and
commercialization capabilities. In addition, companies that perceive us to be a competitor may be unwilling to assign or license rights to us.
Even if we are able to license or acquire third-party intellectual property rights that are necessary for our product candidates, there can be no
assurance that they will be available on favorable terms.

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We  collaborate  with  academic  institutions  worldwide  to  identify  product  candidates,  accelerate  our  research  and  conduct  development.
Typically, these institutions have provided us with an option to negotiate an exclusive license to any of the institution’s rights in the patents or
other  intellectual  property  resulting  from  the  collaboration.  Regardless  of  such  option,  we  may  be  unable  to  negotiate  a  license  within  the
specified timeframe or under terms that are acceptable to us. If we are unable to do so, the institution may offer the intellectual property rights
to other parties, potentially blocking our ability to pursue a program that we wish to pursue.

If we are unable to successfully obtain and maintain rights to required third-party intellectual property, we may have to abandon development
of that product candidate or pay additional amounts to the third-party, and our business and financial condition could suffer.

The patent protection and patent prosecution for some of our product candidates is dependent on third parties.

While  we  normally  seek  and  gains  the  right  to  fully  prosecute  the  patents  relating  to  our  product  candidates,  there  may  be  times  when
patents relating to our product candidates are controlled by our licensors. If future licensors fail to appropriately and broadly prosecute and
maintain  patent  protection  for  patents  covering  any  of  our  product  candidates,  our  ability  to  develop  and  commercialize  those  product
candidates may be adversely affected and we may not be able to prevent competitors from making, using, importing, and selling competing
products. In addition, even where we now have the right to control patent prosecution of patents and patent applications we have licensed
from  third  parties,  we  may  still  be  adversely  affected  or  prejudiced  by  actions  or  inactions  of  our  licensors  in  effect  from  actions  prior  to
assuming control over patent prosecution.

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

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

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

Competitors may infringe our patents or the patents of our licensors. If we or one of our licensing partners were to initiate legal proceedings
against a third party to enforce a patent covering one of our product candidates, the defendant could counterclaim that the patent covering
our  product  candidate  is  invalid  and/or  unenforceable.  In  patent  litigation  in  the  United  States,  defendant  counterclaims  alleging  invalidity
and/or  unenforceability  are  commonplace.  Grounds  for  a  validity  challenge  could  be  an  alleged  failure  to  meet  any  of  several  statutory
requirements,  including  lack  of  novelty,  obviousness,  written  description,  clarity  or  non-  enablement.  Grounds  for  an  unenforceability
assertion could be an allegation that someone connected with prosecution of the patent withheld relevant information from the USPTO, or
made a misleading statement, during prosecution. The outcome following legal assertions of invalidity and unenforceability is unpredictable.

Interference proceedings provoked by third parties or brought by us or declared by the USPTO may be necessary to determine the priority of
inventions  with  respect  to  our  patents  or  patent  applications  or  those  of  our  licensors.  An  unfavorable  outcome  could  require  us  to  cease
using the related technology or to attempt to license rights to us from the prevailing party. Our business could be harmed if the prevailing
party does not offer us a license on commercially reasonable terms. our defense of litigation or interference proceedings may fail and, even if
successful, may result in substantial costs and distract our management and other employees. In addition, the uncertainties associated with
litigation could have a material adverse effect on our ability to raise the funds necessary to continue our clinical trials, continue our research
programs,  license  necessary  technology  from  third  parties,  or  enter  into  development  partnerships  that  would  help  us  bring  our  product
candidates to market.

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

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type  of  litigation.  There  could  also  be  public  announcements  of  the  results  of  hearings,  motions,  or  other  interim  proceedings  or
developments. If securities analysts or investors perceive these results to be negative, it could have a material adverse effect on the price of
our common stock.

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

We  employ  individuals  who  were  previously  employed  at  universities  or  other  biotechnology  or  pharmaceutical  companies,  including  our
competitors  or  potential  competitors.  Although  we  have  written  agreements  and  makes  every  effort  to  ensure  that  our  employees,
consultants, and independent contractors do not use the proprietary information or intellectual property rights of others in their work for us,
we may in the future be subject to any claims that our employees, consultants, or independent contractors have wrongfully used or disclosed
confidential information of third parties. Litigation may be necessary to defend against these claims. If we fail in defending any such claims, in
addition  to  paying  monetary  damages,  we  may  lose  valuable  intellectual  property  rights  or  personnel,  which  could  adversely  impact  our
business.  Even  if  we  are  successful  in  defending  against  such  claims,  litigation  could  result  in  substantial  costs  and  be  a  distraction  to
management and other employees.

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

Filing, prosecuting, and defending patents on product candidates in all countries throughout the world would be prohibitively expensive, and
our intellectual property rights in some countries outside the United States can be less extensive than those in the United States. In addition,
the laws of some foreign countries do not protect intellectual property rights to the same extent as federal and state laws in the United States.
Competitors may use our technologies in jurisdictions where we have not obtained patent protection to develop our own products and may
also export infringing products to territories where we have patent protection, but enforcement is not as strong as that in the United States.
These  products  may  compete  with  our  products  and  our  patents  or  other  intellectual  property  rights  may  not  be  effective  or  sufficient  to
prevent them from competing.

Many companies have encountered significant problems in protecting and defending intellectual property rights in foreign jurisdictions. The
legal systems of some countries, particularly some developing countries, do not favor the enforcement of patents, trade secrets, and other
intellectual  property  protection,  particularly  those  relating  to  biotechnology  products,  which  could  make  it  difficult  for  us  to  stop  the
infringement  of  our  patents  or  marketing  of  competing  products  in  violation  of  our  proprietary  rights  generally.  Proceedings  to  enforce  our
patent rights in foreign jurisdictions, whether or not successful, could result in substantial costs and divert our efforts and attention from other
aspects of our business, could put our patents at risk of being invalidated or interpreted narrowly and our patent applications at risk of not
issuing and could provoke third parties to assert claims against us. We may not prevail in any lawsuits that we initiate and the damages or
other  remedies  awarded,  if  any,  may  not  be  commercially  meaningful.  Accordingly,  our  efforts  to  enforce  our  intellectual  property  rights
around the world may be inadequate to obtain a significant commercial advantage from the intellectual property that we develop or license.

Risks Related to our Reliance on Third Parties

We  rely  on  or  will  rely  on  third  parties  to  conduct  our  clinical  trials,  manufacture  our  product  candidates  and  perform  other
services.  If  these  third  parties  do  not  successfully  perform  and  comply  with  regulatory  requirements,  we  may  not  be  able  to
successfully complete clinical development, obtain regulatory approval or commercialize our product candidates and our business
could be substantially harmed.

We  have  relied  upon  and  plans  to  continue  to  rely  upon  third-parties  such  as  CROs,  hospitals,  etc.  to  conduct,  monitor  and  manage  our
ongoing  clinical  programs.  We  rely  on  these  parties  for  execution  of  clinical  trials  and  manages  and  controls  only  some  aspects  of  their
activities. We remain responsible for ensuring that each of our trials is conducted in accordance with the applicable protocol, legal, regulatory,
and scientific standards and our reliance on these third parties does not relieve us of our regulatory responsibilities. We and our CROs and
other  vendors  are  required  to  comply  with  all  applicable  laws,  regulations  and  guidelines,  including  those  required  by  the  FDA  and
comparable foreign regulatory authorities for all of our product candidates in clinical development. If we or any of our CROs or vendors fail to
comply with applicable laws, regulations and guidelines, the results 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. We
cannot be assured that our CROs and other vendors will meet these requirements, or that upon inspection by any regulatory authority, such

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regulatory authority will determine that efforts, including any of our clinical trials, comply with applicable requirements. Our failure to comply
with these laws, regulations and guidelines may require us to repeat clinical trials, which would be costly and delay the regulatory approval
process.

If any of our relationships with these third-parties terminate, we may not be able to enter into arrangements with alternative third parties in a
timely manner or do so on commercially reasonable terms. In addition, third parties may not prioritize our clinical trials relative to those of
other customers and any turnover in personnel or delays in the allocation of third party employees may negatively affect our clinical trials. If
third parties do not successfully carry out their contractual duties or obligations or meet expected deadlines, our clinical trials may be delayed
or terminated and we may not be able to meet our current plans with respect to our product candidates. CROs, in particular, may also involve
higher costs than anticipated, which could negatively affect our financial condition and operations.

In addition, we do not currently have, nor do we currently plan to establish the capability to manufacture product candidates for use in the
conduct  of  our  clinical  trials,  and  we  lack  the  resources  and  the  capability  to  manufacture  any  of  our  product  candidates  on  a  clinical  or
commercial  scale  without  the  use  of  third-party  manufacturers.  We  plan  to  rely  on  third-party  manufacturers  and  their  responsibilities  will
include purchasing from third-party suppliers the materials necessary to produce our product candidates for our clinical trials and regulatory
approval.  There  are  expected  to  be  a  limited  number  of  suppliers  for  the  active  ingredients  and  other  materials  that  we  expect  to  use  to
manufacture  our  product  candidates,  and  we  may  not  be  able  to  identify  alternative  suppliers  to  prevent  a  possible  disruption  of  the
manufacture of our product candidates for our clinical trials, and, if approved, ultimately for commercial sale. Although we generally do not
expect to begin a clinical trial unless we believe we have a sufficient supply of a product candidate to complete the trial, any significant delay
or discontinuity in the supply of a product candidate, or the active ingredient or other material components in the manufacture of the product
candidate  could  delay  completion  of  our  clinical  trials  and  potential  timing  for  regulatory  approval  of  our  product  candidates,  which  would
harm our business and results of operations.

We expect to rely on third parties to manufacture our clinical product supplies, and we intend to rely on third parties to produce
and process our product candidates, if approved, and our commercialization of any of our product candidates could be stopped,
delayed or made less profitable if those third parties fail to obtain approval of government regulators, fail to comply with applicable
regulations, fail to provide us with sufficient quantities of drug product, or fail to do so at acceptable quality levels or prices.

We do not currently have nor does we currently plan to develop the infrastructure or capability internally to manufacture our clinical supplies
for use in the conduct of our clinical trials, and we lack the resources and the capability to manufacture any of our product candidates on a
clinical or commercial scale. We currently rely on outside vendors to manufacture the clinical supplies of our product candidates. We plan to
continue relying on third parties to manufacture our product candidates on a commercial scale, if approved.

We do not yet have sufficient information to reliably estimate the cost of the commercial manufacturing of our product candidates and our
current costs to manufacture our drug products is not commercially feasible, and the actual cost to manufacture our product candidates could
materially  and  adversely  affect  the  commercial  viability  of  our  product  candidates.  As  a  result,  we  may  never  be  able  to  develop  a
commercially viable product.

In addition, our reliance on third-party manufacturers exposes us to the following additional risks:

• We may be unable to identify manufacturers on acceptable terms or at all;

• Our third-party manufacturers might be unable to timely formulate and manufacture our product or produce the quantity and quality

required to meet our clinical and commercial needs, if any;

•

contract manufacturers may not be able to execute our manufacturing procedures appropriately;

• Our future third-party manufacturers may not perform as agreed or may not remain in the contract manufacturing business for the

time required to supply our clinical trials or to successfully produce, store and distribute our products;

• manufacturers are subject to ongoing periodic unannounced inspection by the FDA and corresponding state agencies to ensure strict

compliance with cGMPs and other government regulations and corresponding

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foreign standards. We do not have control over third-party manufacturers’ compliance with these regulations and standards;

• We may not own, or may have to share, the intellectual property rights to any improvements made by our third-party manufacturers

in the manufacturing process for our product candidates; and

• Our third-party manufacturers could breach or terminate their agreement with us.

Each of these risks could delay our clinical trials, the approval, if any of our product candidates by the FDA or the commercialization of our
product candidates or result in higher costs or deprive us of potential product revenue. In addition, we rely on third parties to perform release
testing on our product candidates prior to delivery to patients. If these tests are not appropriately conducted and test data are not reliable,
patients could be put at risk of serious harm and could result in product liability suits.

The  manufacture  of  medical  products  is  complex  and  requires  significant  expertise  and  capital  investment,  including  the  development  of
advanced  manufacturing  techniques  and  process  controls.  Manufacturers  of  medical  products  often  encounter  difficulties  in  production,
particularly in scaling up and validating initial production and absence of contamination. These problems include difficulties with production
costs and yields, quality control, including stability of the product, quality assurance testing, operator error, shortages of qualified personnel,
as well as compliance with strictly enforced federal, state and foreign regulations. Third-party manufacturers may not be able to comply with
applicable  cGMP,  regulations  or  similar  regulatory  requirements  outside  the  United  States.  Our  failure,  or  the  failure  of  our  third-party
manufacturers, to comply with applicable regulations could result in sanctions being imposed, including clinical holds, fines, injunctions, civil
penalties, delays, license revocation, seizures or recalls of product candidates or products, operating restrictions and criminal prosecutions,
any of which could significantly and adversely affect supplies of our product candidates. Furthermore, if contaminants are discovered in our
supply  of  our  product  candidates  or  in  the  manufacturing  facilities,  such  manufacturing  facilities  may  need  to  be  closed  for  an  extended
period  of  time  to  investigate  and  remedy  the  contamination.  We  cannot  be  assured  that  any  stability  or  other  issues  relating  to  the
manufacture of our product candidates will not occur in the future. Additionally, our manufacturers may experience manufacturing difficulties
due to resource constraints or as a result of labor disputes or unstable political environments. If our manufacturers were to encounter any of
these  difficulties,  or  otherwise  fail  to  comply  with  their  contractual  obligations,  our  ability  to  provide  our  product  candidates  to  patients  in
clinical trials would be jeopardized. Any delay or interruption in the supply of clinical trial supplies could delay the completion of clinical trials,
increase the costs associated with maintaining clinical trial programs and, depending upon the period of delay, require us to commence new
clinical trials at additional expense or terminate clinical trials completely.

We may be unable to realize the potential benefits of any current or future collaboration.

We have entered into strategic collaborations and license agreements with the University of Utah, HLBLS, and CPRIT. While we may seek to
enter into future collaborations for the development and commercialization of our product candidates, there can be no assurance that we will
be able to do so. Even if we are successful in entering into a collaboration with respect to the development and/or commercialization of one
or more product candidates, there is no guarantee that the collaboration will be successful and we may be unable to realize in full or in part
the potential benefits of any of our current collaborations.

Collaborations may pose a number of risks, including:

•

•

•

•

collaborators often have significant discretion in determining the efforts and resources that they will apply to the collaboration, and
may not commit sufficient resources to the development, marketing or commercialization of the product or products that are subject
to the collaboration;

collaborators may not perform their obligations as expected;

any such collaboration may significantly limit our share of potential future profits from the associated program, and may require us to
relinquish  potentially  valuable  rights  to  our  current  product  candidates,  potential  products  or  proprietary  technologies  or  grant
licenses on terms that are not favorable to us;

collaborators may cease to devote resources to the development or commercialization of our product candidates if the collaborators
view our product candidates as competitive with their own products or product candidates;

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•

•

•

•

•

disagreements  with  collaborators,  including  disagreements  over  proprietary  rights,  contract  interpretation  or  the  course  of
development, might cause delays or termination of the development or commercialization of product candidates, and might result in
legal proceedings, which would be time consuming, distracting and expensive;

collaborators  may  be  impacted  by  changes  in  their  strategic  focus  or  available  funding,  or  business  combinations  involving  them,
which could cause them to divert resources away from the collaboration;

collaborators may infringe the intellectual property rights of third parties, which may expose us to litigation and potential liability;

the collaborations may not result in us achieving revenues to justify such transactions; and

collaborations  may  be  terminated  and,  if  terminated,  may  result  in  a  need  for  us  to  raise  additional  capital  to  pursue  further
development or commercialization of the applicable product candidate.

As a result, a collaboration may not result in the successful development or commercialization of our product candidates.

We enter into various contracts in the normal course of our business in which we indemnify the other party to the contract. In the
event we have to perform under these indemnification provisions, it could have a material adverse effect on our business, financial
condition and results of operations.

In  the  normal  course  of  business,  we  periodically  enter  into  academic,  commercial,  service,  collaboration,  licensing,  consulting  and  other
agreements that contain indemnification provisions. With respect to our academic and other research agreements, we typically indemnify the
institution and related parties from losses arising from claims relating to the products, processes or services made, used, sold or performed
pursuant to the agreements for which we have secured licenses, and from claims arising from our sublicensees’ exercise of rights under the
agreement.  With  respect  to  our  collaboration  agreements,  we  indemnify  our  collaborators  from  any  third-party  product  liability  claims  that
could result from the production, use or consumption of the product, as well as for alleged infringements of any patent or other intellectual
property right by a third party. With respect to consultants, we indemnify them from claims arising from the good faith performance of their
services.

Should our obligation under an indemnification provision exceed applicable insurance coverage or if we were denied insurance coverage, our
business, financial condition and results of operations could be adversely affected. Similarly, if we are relying on a collaborator to indemnify
us and the collaborator is denied insurance coverage or the indemnification obligation exceeds the applicable insurance coverage, and if the
collaborator  does  not  have  other  assets  available  to  indemnify  us,  our  business,  financial  condition  and  results  of  operations  could  be
adversely affected.

Risks Related to Commercialization of our Product Candidates

We currently have very limited marketing and sales experience. If we are unable to establish sales and marketing capabilities or
enter into agreements with third parties to market and sell our product candidates, we may be unable to generate any revenue.

Although some of our employees may have marketed, launched, and sold other pharmaceutical products in the past while employed at other
companies, We have no experience selling and marketing our product candidates and we currently have no marketing or sales organization.
To successfully commercialize any products that may result from our development programs, we will need to find one or more collaborators
to  commercialize  our  products  or  invest  in  and  develop  these  capabilities,  either  on  our  own  or  with  others,  which  would  be  expensive,
difficult  and  time  consuming.  Any  failure  or  delay  in  the  timely  development  of  our  internal  commercialization  capabilities  could  adversely
impact the potential for success of our products.

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

•

•

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

the inability of sales personnel to obtain access to physicians;

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•

•

•

the lack of adequate numbers of physicians to prescribe any future products;

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

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

If commercialization collaborators do not commit sufficient resources to commercialize our future products and we are unable to develop the
necessary  marketing  and  sales  capabilities  on  our  own,  we  will  be  unable  to  generate  sufficient  product  revenue  to  sustain  or  grow  our
business. We may be competing with companies that currently have extensive and well-funded marketing and sales operations, particularly
in  the  markets  our  product  candidates  are  intended  to  address.  Without  appropriate  capabilities,  whether  directly  or  through  third-party
collaborators, we may be unable to compete successfully against these more established companies.

We may attempt to form collaborations in the future with respect to our product candidates, but we may not be able to do so, which
may cause us to alter our development and commercialization plans.

We may attempt to form strategic collaborations, create joint ventures or enter into licensing arrangements with third parties with respect to
our programs that we believe will complement or augment our existing business. We may face significant competition in seeking appropriate
strategic collaborators, and the negotiation process to secure appropriate terms is time consuming and complex. We may not be successful
in our efforts to establish such a strategic collaboration for any product candidates and programs on terms that are acceptable to us, or at all.
This may be because our product candidates and programs may be deemed to be at too early of a stage of development for collaborative
effort,  our  research  and  development  pipeline  may  be  viewed  as  insufficient,  the  competitive  or  intellectual  property  landscape  may  be
viewed  as  too  intense  or  risky,  and/or  third  parties  may  not  view  our  product  candidates  and  programs  as  having  sufficient  potential  for
commercialization, including the likelihood of an adequate safety and efficacy profile.

Any delays in identifying suitable collaborators and entering into agreements to develop and/or commercialize our product candidates could
delay  the  development  or  commercialization  of  our  product  candidates,  which  may  reduce  their  competitiveness  even  if  they  reach  the
market. Absent a strategic collaborator, we would need to undertake development and/or commercialization activities at our own expense. If
we elect to fund and undertake development and/or commercialization activities on our own, we may need to obtain additional expertise and
additional capital, which may not be available to us on acceptable terms or at all. If we are unable to do so, we may not be able to develop
our product candidates or bring them to market and our business may be materially and adversely affected.

If the market opportunities for our product candidates are smaller than we believe they are, we may not meet our future revenue
expectations and, assuming approval of a product candidate, our business may suffer.

Given the small number of patients who have the diseases that we are targeting, the eligible patient population and pricing estimates may
differ significantly from the actual market addressable by our product candidates. For example, based off data from the National Institute of
Health  (NIH)  and  physician  collaborators,  we  believe  that  there  are  approximately  500  Ewing  sarcoma  patients  diagnosed  annually  in  the
United  States.  Because  the  patient  populations  in  the  market  for  our  product  candidates  may  be  small,  we  must  be  able  to  successfully
identify  patients  and  acquire  a  significant  market  share  to  achieve  profitability  and  growth,  which  would  negatively  affect  our  revenue  and
operating results.

We  face  substantial  competition  and  our  competitors  may  discover,  develop  or  commercialize  products  faster  or  more
successfully than us.

The  development  and  commercialization  of  new  drug  products  is  highly  competitive.  We  face  competition  from  major  pharmaceutical
companies,  specialty  pharmaceutical  companies,  biotechnology  companies,  universities  and  other  research  institutions  worldwide  with
respect  to  oncology  therapies  and  the  other  product  candidates  that  we  may  seek  to  develop  or  commercialize  in  the  future.  The  list  of
companies working on some form of cancer treatment is almost limitless with big and small companies working on every aspect of oncology
therapies worldwide.

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If  our  competitors  obtain  marketing  approval  from  the  FDA  or  comparable  foreign  regulatory  authorities  for  their  product  candidates  more
rapidly than us, it could result in our competitors establishing a strong market position before we are able to enter the market.

Many of our competitors have materially greater name recognition and financial, manufacturing, marketing, research and drug development
resources  than  we  do.  Additional  mergers  and  acquisitions  in  the  biotechnology  and  pharmaceutical  industries  may  result  in  even  more
resources being concentrated in our competitors. Large pharmaceutical companies in particular have extensive expertise in pre-clinical and
clinical testing and in obtaining regulatory approvals for drugs. In addition, academic institutions, government agencies, and other public and
private organizations conducting research may seek patent protection with respect to potentially competitive products or technologies. These
organizations  may  also  establish  exclusive  collaborative  or  licensing  relationships  with  our  competitors.  Failure  of  Seclidemstat  or  other
product candidates to effectively compete against established treatment options or in the future with new products currently in development
would harm our business, financial condition, results of operations and prospects.

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

Even  if  we  obtain  the  necessary  approvals  from  the  FDA  and  comparable  foreign  regulatory  authorities,  the  commercial  success  of  our
products  will  depend  in  part  on  the  health  care  providers,  patients,  and  third-party  payors  accepting  our  product  candidates  as  medically
useful, cost-effective, and safe. Any product that we bring to the market may not gain market acceptance by physicians, patients and third-
party payors. The degree of market acceptance of any of our products will depend on a number of factors, including but not limited to:

•

•

•

•

•

•

•

•

•

•

the efficacy of the product as demonstrated in clinical trials and potential advantages over competing treatments;

the prevalence and severity of the disease and any side effects;

the clinical indications for which approval is granted, including any limitations or warnings contained in a product’s approved labeling;

the convenience and ease of administration;

the cost of treatment;

the willingness of the patients and physicians to accept these therapies;

the  perceived  ratio  of  risk  and  benefit  of  these  therapies  by  physicians  and  the  willingness  of  physicians  to  recommend  these
therapies to patients based on such risks and benefits;

the marketing, sales and distribution support for the product;

the publicity concerning our products or competing products and treatments; and

the pricing and availability of third-party insurance coverage and reimbursement.

Even if a product displays a favorable efficacy and safety profile upon approval, market acceptance of the product remains uncertain. Efforts
to educate the medical community and third-party payors on the benefits of the products may require significant investment and resources
and may never be successful. If our products fail to achieve an adequate level of acceptance by physicians, patients, third-party payors, and
other health care providers, we will not be able to generate sufficient revenue to become or remain profitable.

We may not be successful in any efforts to identify, license, discover, develop, or commercialize additional product candidates.

Although  a  substantial  amount  of  our  effort  will  focus  on  the  continued  clinical  testing,  potential  approval,  and  commercialization  of  our
existing  product  candidates,  the  success  of  our  business  is  also  expected  to  depend  in  part  upon  our  ability  to  identify,  license,  discover,
develop, or commercialize additional product candidates. Because we have limited financial and managerial resources, we must focus on a
limited  number  of  research  programs  and  product  candidates  and  on  specific  indications.  As  a  result,  we  may  forego  or  delay  pursuit  of
opportunities with other product candidates or for other indications that later prove to have greater commercial potential. Our resource

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allocation  decisions  may  cause  us  to  fail  to  capitalize  on  viable  commercial  products  or  profitable  market  opportunities.  Our  spending  on
current  and  future  discovery  and  preclinical  development  programs  and  product  candidates  for  specific  indications  may  not  yield  any
commercially viable products. Furthermore, until such time as we are able to build a broader product candidate pipeline, if ever, any adverse
developments with respect to our current product candidates would have a more significant adverse effect on our overall business than if we
maintained a broader portfolio of product candidates.

Research  programs  to  identify  new  product  candidates  require  substantial  technical,  financial,  and  human  resources.  We  may  focus  our
efforts  and  resources  on  potential  programs  or  product  candidates  that  ultimately  prove  to  be  unsuccessful.  Our  research  programs  or
licensing  efforts  may  fail  to  yield  additional  product  candidates  for  clinical  development  and  commercialization  for  a  number  of  reasons,
including but not limited to the following:

• Our  research  or  business  development  methodology  or  search  criteria  and  process  may  be  unsuccessful  in  identifying  potential

product candidates;

• We may not be able or willing to assemble sufficient resources to acquire or discover additional product candidates;

•

•

•

•

•

•

•

our product candidates may not succeed in pre-clinical or clinical testing;

our potential product candidates may be shown to have harmful side effects or may have other characteristics that may make the
products unmarketable or unlikely to receive marketing approval;

competitors may develop alternatives that render our product candidates obsolete or less attractive;

product candidates we develop may be covered by third parties’ patents or other exclusive rights;

the market for a product candidate may change during our program so that such a product may become unreasonable to continue to
develop;

a product candidate may not be capable of being produced in commercial quantities at an acceptable cost, or at all; and

a product candidate may not be accepted as safe and effective by patients, the medical community, or third-party payors.

If any of these events occur, we may be forced to abandon our development efforts for a program or programs, or we may not be able to
identify,  license,  discover,  develop,  or  commercialize  additional  product  candidates,  which  would  have  a  material  adverse  effect  on  our
business, financial condition or results of operations and could potentially cause us to cease operations.

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

The pricing, coverage, and reimbursement of our approved products, if any, must be sufficient to support our commercial efforts and other
development programs and the availability and adequacy of coverage and reimbursement by third-party payors, including governmental and
private insurers, are essential for most patients to be able to afford expensive treatments. Sales of our approved products, if any, will depend
substantially, both domestically and abroad, on the extent to which the costs of our approved products, if any, will be paid for or reimbursed
by  health  maintenance,  managed  care,  pharmacy  benefit  and  similar  healthcare  management  organizations,  or  government  payors  and
private  payors.  If  coverage  and  reimbursement  are  not  available,  or  are  available  only  in  limited  amounts,  we  may  have  to  subsidize  or
provide products for free or we may not be able to successfully commercialize our products.

In addition, there is significant uncertainty related to the insurance coverage and reimbursement for newly approved products. In the United
States, the principal decisions about coverage and reimbursement for new drugs are typically made by Centers for Medicare and Medicaid
Services, (“CMS”), an agency within the U.S. Department of Health and Human Services, as CMS decides whether and to what extent a new
drug will be covered and reimbursed under Medicare. Private payors tend to follow the coverage reimbursement policies established by CMS

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to a substantial degree. It is difficult to predict what CMS will decide with respect to reimbursement for novel product candidates such as our
and what reimbursement codes our product candidates may receive if approved.

Outside the United States, international operations are generally subject to extensive governmental price controls and other price-restrictive
regulations, and we believe the increasing emphasis on cost-containment initiatives in Europe and other countries has and will continue to
put pressure on the pricing and usage of products. In many countries, the prices of products are subject to varying price control mechanisms
as part of national health systems. Price controls or other changes in pricing regulation could restrict the amount that we are able to charge
for our products, if any. Accordingly, in markets outside the United States, the potential revenue may be insufficient to generate commercially
reasonable revenue and profits.

Moreover,  increasing  efforts  by  governmental  and  private  payors  in  the  United  States  and  abroad  to  limit  or  reduce  healthcare  costs  may
result in restrictions on coverage and the level of reimbursement for new products and, as a result, they may not cover or provide adequate
payment  for  our  products.  We  expect  to  experience  pricing  pressures  in  connection  with  products  due  to  the  increasing  trend  toward
managed  healthcare,  including  the  increasing  influence  of  health  maintenance  organizations  and  additional  legislative  changes.  The
downward pressure on healthcare costs in general, particularly prescription drugs has and is expected to continue to increase in the future.
As a result, profitability of our products, if any, may be more difficult to achieve even if they receive regulatory approval.

Risks Related to our Business Operations

Our  future  success  depends  in  part  on  our  ability  to  retain  our  president  and  chief  executive  officer  and  our  executive  vice
president of finance and chief financial officer, and to attract, retain, and motivate other qualified personnel.

We are a small company with a limited number of employees performing multiple tasks each. We are highly dependent on David J. Arthur,
our president and chief executive officer, and Mark J. Rosenblum, our executive vice president of finance and chief financial officer, the loss
of service from either may adversely impact the achievement of our objectives. Although Mr. Arthur employment agreement contains a non-
compete provision for a period of one year following the termination of his employment agreement, he could leave our employment at any
time, as he is an “at will” employee. Recruiting and retaining other qualified employees, consultants, and advisors for our business, including
scientific  and  technical  personnel,  will  also  be  critical  to  our  success.  There  is  currently  a  shortage  of  highly  qualified  personnel  in  our
industry,  which  is  likely  to  continue.  Additionally,  this  shortage  of  highly  qualified  personnel  is  particularly  acute  in  the  area  where  we  are
located.  As  a  result,  competition  for  personnel  is  intense  and  the  turnover  rate  can  be  high.  We  may  not  be  able  to  attract  and  retain
personnel  on  acceptable  terms  given  the  competition  among  numerous  pharmaceutical  and  biotechnology  companies  for  individuals  with
similar  skill  sets.  In  addition,  failure  to  succeed  in  development  and  commercialization  of  our  product  candidates  may  make  it  more
challenging to recruit and retain qualified personnel. The inability to recruit and retain qualified personnel, or the loss of the services of Mr.
Arthur  or  Mr.  Rosenblum  may  impede  the  progress  of  our  research,  development,  and  commercialization  objectives  and  would  negatively
impact our ability to succeed in our product development strategy.

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

As  of  December  31,  2021,  we  had  15  full-time  employees.  As  our  development  and  commercialization  plans  and  strategies  develop,  we
expect  to  need  additional  managerial,  operational,  sales,  marketing,  financial,  legal,  and  other  resources.  Our  management  may  need  to
divert  a  disproportionate  amount  of  its  attention  away  from  its  day-to-day  activities  and  devote  a  substantial  amount  of  time  to  managing
these growth activities. We may not be able to effectively manage the expansion of our operations, which may result in weaknesses in our
infrastructure,  operational  mistakes,  loss  of  business  opportunities,  loss  of  employees,  and  reduced  productivity  among  remaining
employees. Our expected growth could require significant capital expenditures and may divert financial resources from other projects, such
as  the  development  of  additional  product  candidates.  If  our  management  is  unable  to  effectively  manage  our  growth,  our  expenses  may
increase  more  than  expected,  our  ability  to  generate  and/or  grow  revenue  could  be  reduced  and  we  may  not  be  able  to  implement  our
business strategy. Our future financial performance and our ability to commercialize product candidates and compete effectively will depend,
in part, on our ability to effectively manage any future growth.

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Risks Related to Our Common Stock

The terms of the warrants could impede our ability to enter into certain transactions or obtain additional financing.

The terms of the warrants require us, upon the consummation of any “fundamental transaction” (as defined in the securities), to, among other
obligations, cause any successor entity resulting from the fundamental transaction to assume all of our obligations under the warrants and
the associated transaction documents. In addition, holders of warrants are entitled to participate in any fundamental transaction on an as-
converted or as-exercised basis, which could result in the holders of our common stock receiving a lesser portion of the consideration from a
fundamental  transaction.  The  terms  of  the  warrants  could  also  impede  our  ability  to  enter  into  certain  transactions  or  obtain  additional
financing in the future.

Future sales of a significant number of our shares of common stock in the public markets, or the perception that such sales could
occur, could depress the market price of our shares of our common stock or cause our stock price to decline.

Sales of a substantial number of our shares of common stock in the public markets, or the perception that such sales could occur, including
from the exercise of warrants or sales of common stock issuable thereunder, could cause the market price of our shares of common stock to
decline and impair our ability to raise capital through the sale of additional equity securities. A substantial number of shares of common stock
are being offered by this prospectus. We cannot predict the number of these shares that might be sold nor the effect that future sales of our
shares of common stock, including shares issuable upon the exercise of warrants, would have on the market price of our shares of common
stock.

We do not currently intend to pay dividends on our common stock, and any return to investors is expected to come, if at all, only
from potential increases in the price of our common stock.

At  the  present  time,  we  intend  to  use  available  funds  to  finance  our  operations.  Accordingly,  while  payment  of  dividends  rests  within  the
discretion of our board of directors, we have no intention of paying any such dividends in the foreseeable future. Any return to investors is
expected to come, if at all, only from potential increases in the price of our common stock.

Failure to meet the continued listing requirements of the Nasdaq Stock Market, LLC (“Nasdaq”) could result in the delisting of our
common stock, negatively impact the price of our common stock and negatively impact our ability to raise additional capital.

Nasdaq requires listing issuers to comply with certain standards in order to remain listed on its exchange. If, for any reason, Nasdaq should
delist our securities from trading on its exchange and we are unable to obtain listing on another reputable national securities exchange, a
reduction in some or all of the following may occur, each of which could materially adversely affect our stockholders.

On  November  16,  2021,  we  were  notified  (the  “Notice”)  by  Nasdaq  that  on  August  17,  2021  the  average  closing  price  of  the  Company’s
common stock (the “Common Stock”) over the prior 30 consecutive trading days had fallen below $1.00 per share, which is the minimum
average  closing  price  required  to  maintain  listing  on  Nasdaq  under  Nasdaq  Listing  Rule  5450(a)(1)  (the  “Minimum  Bid  Requirement”).  To
regain compliance, the closing bid price of the Company’s common stock must be at least $1.00 per share for a minimum of ten consecutive
business days before May 16, 2022.

On  March  18,  2022,  the  closing  price  of  our  common  stock  was  $.39  per  share.  To  the  extent  that  we  are  unable  to  resolve  any  listing
deficiency, there is a risk that our common stock may be delisted from Nasdaq, which would adversely impact liquidity of our common stock
and potentially result in even lower bid prices for our common stock.

General Risks

Failure in our information technology and storage systems could significantly disrupt the operation of our business and/or lead to
potential large liabilities.

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Our ability to execute our business plan and maintain operations depends on the continued and uninterrupted performance of our information
technology  systems.  Information  technology  systems  are  vulnerable  to  risks  and  damages  from  a  variety  of  sources,  including
telecommunications  or  network  failures,  malicious  human  acts  and  natural  disasters.  Moreover,  despite  network  security  and  back-up
measures,  some  of  our  and  our  vendors’  servers  are  potentially  vulnerable  to  physical  or  electronic  break-ins,  including  cyber-attacks,
computer  viruses  and  similar  disruptive  problems.  These  events  could  lead  to  the  unauthorized  access,  disclosure  and  use  of  non-public
information which in turn could lead to operational difficulties and liabilities.

A  security  breach  or  privacy  violation  that  leads  to  disclosure  of  consumer,  customer,  supplier,  partner  or  employee  information  (including
personally identifiable information or protected health information) could harm our reputation, compel us to comply with disparate state and
foreign breach notification laws and otherwise subject us to liability under laws that protect personal data, resulting in increased costs or loss
of revenue.

The  techniques  used  by  criminal  elements  to  attack  computer  systems  are  sophisticated,  change  frequently  and  may  originate  from  less
regulated and remote areas of the world. As a result, we may not be able to address these techniques proactively or implement adequate
preventative  measures.  If  our  computer  systems  are  compromised,  we  could  be  subject  to  fines,  damages,  litigation  and  enforcement
actions,  and  we  could  lose  trade  secrets,  the  occurrence  of  which  could  harm  our  business.  Despite  precautionary  measures  to  prevent
unanticipated problems that could affect our information technology systems, sustained or repeated system failures that interrupt our ability to
generate  and  maintain  data  could  adversely  affect  our  ability  to  operate  our  business.  In  addition,  a  data  security  breach  could  distract
management or other key personnel from performing their primary operational duties.

The  interpretation  and  application  of  consumer  and  data  protection  laws  in  the  United  States,  Europe  and  elsewhere  are  often  uncertain,
contradictory and in flux. Among other things, foreign privacy laws impose significant obligations on U.S. companies to protect the personal
information of foreign citizens. It is possible that these laws may be interpreted and applied in a manner that is inconsistent with our data
practices, which could have a material adverse effect on our business. Complying with these various laws could cause us to incur substantial
costs or require us to change our business practices in a manner adverse to our business.

We may face business disruption and related risks resulting from the ongoing COVID-19 pandemic.

The outbreak of COVID-19 has spread worldwide. On March 11, 2020, the World Health Organization declared the outbreak a pandemic.
The COVID-19 pandemic is affecting the United States and global economies and may affect the Company’s operations and those of third
parties on which the Company relies. 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  may  reduce  the  Company’s  ability  to  access
capital, which could negatively impact the Company’s long-term liquidity. The ultimate impact of the COVID-19 pandemic is highly uncertain
and subject to change. The Company does not yet know the full extent of potential delays or impacts on our business, clinical trials or the
drug procurement, financing, or other activities or on healthcare systems or the global economy as a whole. However, these effects could
have a material impact on the our liquidity, capital resources, operations, and business and those of the third parties on which we rely.

The  COVID-19  pandemic  is  significantly  affecting  the  United  States,  global  economies,  and  businesses  worldwide.  While  the  potential
magnitude  and  duration  of  the  economic  and  social  impact  of  the  COVID-19  pandemic  is  difficult  to  assess  or  predict,  the  impact  on  the
global financial markets may, in the future, reduce our ability to access capital, which could negatively impact our short-term and long-term
liquidity. The COVID-19 pandemic could also have a material and negative impact on our liquidity, capital resources (including our ability to
secure additional financing if and when needed), our business and operations, and our workforce, as well as those of the third parties with
which we do business or upon which we rely. While the situation is fluid and we do not yet know the full extent of potential delays or impacts
on us or on healthcare systems or the global economy in general, at this time, we are experiencing minimal disruption to our clinical trials and
have experienced no disruptions to manufacturing capabilities. However, we may experience disruptions in the future that have and could
further  adversely  impact  our  business  operations,  preclinical  studies  and  clinical  trials,  and  certain  aspects  of  our  supply  chain  may  be
disrupted as certain of our third party suppliers and manufacturers have paused their operations in response to the COVID-19 pandemic or
have otherwise encountered delays in providing supplies and services. We continue to evaluate the extent to which these delays will impact
our ability to manufacture our product candidates for our clinical trials and conduct other research and development operations and maintain
applicable timelines. The ultimate impact of the COVID-19 pandemic on our business operations as well as our preclinical studies and clinical
trials remains uncertain and subject to change and will depend on future developments, which cannot be accurately predicted.

Item 1B. Unresolved Staff Comments

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None.

Items 2. Properties

The Company presently leases office space under operating lease agreements on a month to month basis.

Item 3. Legal Proceedings

None.

Item 4. Mine Safety Disclosures

Not applicable.

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

PART II

Market Information

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

As of March 15, 2022, we had approximately 143 record holders of our common stock. Because many of our shares are held by brokers and
other institutions on behalf of stockholders, we are unable to estimate the total number of individual stockholders represented by these record
holders.

Equity Compensation Plan Information

Information required by Item 5 of Form 10-K regarding our equity compensation plans is incorporated herein by reference from Item 12 of
Part III of this Annual Report on Form 10-K.

Recent Sales of Unregistered Securities

Other than as previously disclosed on our Current Reports on Form 8-K or Quarterly Reports on Form 10-Q filed with the SEC, we did not
issue any unregistered equity securities during the twelve months ended December 31, 2021.

Purchases of Equity Securities by the Issuer and Affiliated Purchasers
None.

Item 6.

RESERVED

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

This Management’s Discussion and Analysis provides material historical and prospective disclosures intended to enable investors and other
users to assess our financial condition and results of operations. Statements that are not historical are forward-looking and involve risks and
uncertainties discussed under the headings “SPECIAL NOTE REGARDING Forward-Looking Statements” and “Risk Factors” of this report.
The following discussion of our results of operations and financial condition should be read in conjunction with our financial statements and
the  related  notes  thereto  included  elsewhere  in  this  report.  These  risks  could  cause  our  actual  results  to  differ  materially  from  any  future
performance suggested below.

Introduction

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Our  Management's  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations,  or  MD&A,  is  provided  in  addition  to  the
accompanying consolidated financial statements and notes to assist readers in understanding our results of operations, financial condition,
and cash flows.

Overview

We are a clinical-stage biotechnology company focused on developing effective epigenetic-based cancer treatments for indications with high
unmet medical need. Our lead epigenetic enzyme technology was licensed from the University of Utah Research Foundation in 2011. We
also recent acquired DRX-164, subsequently named as SP-3164, which is a next-generation cereblon binding molecular glue and we believe
it has a clear development path in hematological cancer and potential in solid tumors.

Epigenetics refers to the system that regulates gene expression through conformational changes to the chromatin rather than changes to the
DNA sequence itself. Our lead compound, seclidemstat (“SP-2577”), is a small molecule that inhibits the epigenetic enzyme lysine specific
demethylase 1 (“LSD1”). LSD1 is an enzyme that removes mono- and di-methyl marks on histones (core protein of chromatin) to alter gene
expression. LSD1’s enzymatic activity can cause genes to turn on or off and thereby affect the cell’s gene expression and overall activity. In
addition, LSD1 can act via its scaffolding properties, independently of its enzymatic function, to alter gene expression and modulate cell fate.
In healthy cells, LSD1 is necessary for stem cell maintenance and cell development processes. However, in several cancers LSD1 is highly
expressed and acts aberrantly to incorrectly silence or activate genes leading to disease progression. High levels of LSD1 expression are
often  associated  with  aggressive  cancer  phenotypes  and  poor  patient  prognosis.  Hence,  development  of  targeted  LSD1  inhibitors  is  of
interest  for  the  treatment  of  various  cancers.  SP-2577  uses  a  novel,  reversible  mechanism  to  effectively  inhibit  LSD1’s  enzymatic  and
scaffolding properties and thereby treat and prevent cancer progression.

Our first indication of interest for SP-2577 is a devastating bone and soft-tissue cancer called Ewing sarcoma. Ewing sarcoma mostly afflicts
adolescents  and  young  adults,  with  the  median  age  of  diagnosis  being  15.  The  most  commonly  expressed  fusion  oncoprotein  in  Ewing
sarcoma is the EWS-FLI fusion protein, which is present in approximately 85% of Ewing sarcoma cases. The LSD1 enzyme associates with
EWS-FLI (and other E26 Transformation-Specific (“ETS”) fusion proteins) and is thought to promote tumorigenesis. We believe the SP-2577
molecule helps inhibit EWS-FLI activity by disrupting EWS-FLI from associating with coregulators (including LSD1) that are necessary for its
cancer  promoting  activity.  Therefore,  we  believe  that  SP-2577  can  potentially  reverse  the  aberrant  gene  expression  and  thereby  possibly
prevent  Ewing  sarcoma  cell  proliferation  and  even  promote  cell  death.  Preclinical  studies  of  SP-2577  in  certain  Ewing  sarcoma  animal
models show a significant tumor reduction as well as a significant survival benefit compared to untreated animals. Our ongoing Phase 1/2
clinical  trial  is  designed  as  a  single  agent  dose  escalation  followed  by  a  dose  expansion  study.  The  trial  can  enroll  up  to  50  relapsed  or
refractory  Ewing  sarcoma  patients.  The  primary  objectives  of  the  study  are  to  assess  the  safety  and  tolerability  of  SP-2577.  Secondary
objectives include assessing preliminary efficacy of SP-2577.

As  LSD1  can  associate  with  over  60  regulatory  proteins  other  than  EWS-FLI,  we  believe  that  LSD1  may  also  play  a  critical  role  in
progression of various other cancer types. These include both solid tumors and hematologic malignancies. In the second quarter of 2019, we
initiated a second company-sponsored Phase 1 trial to study SP-2577 in Advanced Solid Tumors. The Advanced Solid Tumor (“AST”) trial is
a  single  agent  dose  escalation,  dose  expansion  study  enrolling  patients  with  advanced  malignancies,  excluding  Ewing  sarcoma  or  central
nervous system tumors.

In  addition,  recent  data  from  “LSD1  Ablation  Stimulates  Anti-tumor  Immunity  and  Enables  Checkpoint  Blockade”  by  W.  Sheng,  et  al.  and
“Inhibition of Histone Lysine-specific Demethylase 1 Elicits Breast Tumor Immunity and Enhances Antitumor Efficacy of Immune Checkpoint
Blockade” by Y. Qin, et al. suggests that LSD1 plays a role in tumor immune activity and can sensitize tumors to checkpoint inhibitors. These
recent works have sparked interest in combining LSD1 inhibitors with checkpoint inhibitors. We are conducting preclinical work with SP-2577
in this area.

Our  plan  is  to  develop  SP-3164  in  high  unmet  need  hematological  and  solid  tumor  indications.  SP-3164's  development  in  hematological
indications leverates the clinical safety and efficacy data demonstrated by avadomide in hematological malignancies (e.g., Diffuse Large B
cell Lymphoma, Follicular Lymphoma) across several clinical trials. SP-3164 is the stabilized, active S-enantiomer of avadomide, which exists
as a 1:1 ratio of the S and R enantiomers. However, only the S-enantiomer is the active, anti-cancer species. Therefore, because SP-3164 is
the  stabilized  S-enantiomer,  it  has  the  potential  to  show  improved  therapy  and  safety  over  avadomide.  This  was  demonstrated  in  early
preclinical mouse models of multiple myeloma. In addition to having a clear development path

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in  hematological  cancers,  we  believe  SP-3164  also  has  potential  in  solid  tumors.  We  are  conducting  preclinical  work  to  identify  the  most
promising indications and combinations for SP-3164's development in solid tumors.

We have no products approved for commercial sale and have not generated any revenue from product sales. We have never been profitable
and have incurred operating losses in each year since inception. We had an accumulated deficit of $32.2 million as of December 31, 2021.
Substantially  all  of  our  operating  losses  resulted  from  expenses  incurred  in  connection  with  our  research  and  development  programs  and
from general and administrative costs associated with our operations.

We  expect  to  continue  to  incur  significant  expenses  and  increasing  operating  losses  for  at  least  the  next  several  years  as  we  initiate  and
continue  the  clinical  development  of,  and  seek  regulatory  approval  for,  our  product  candidates,  add  personnel  necessary  to  continue  to
operate as a public company, and work to develop an advanced clinical pipeline of product candidates. We expect that our operating losses
will  fluctuate  significantly  from  quarter-to-quarter  and  year-to-year  due  to  timing  of  clinical  development  programs  and  efforts  to  achieve
regulatory approval.

As of December 31, 2021, we had cash and cash equivalents of $29.2 million. We have received $14.5 million since inception of the grant.
We  believe  that  as  of  December  31,  2021,  CPRIT  fund  matching  requirements  had  been  fully  met.  Additionally,  during  the  twelve  months
ended December 31, 2021, we received $28.8 million cash from equity offering.

The lack of revenue from product sales to date and recurring losses from operations since our inception raise substantial doubt as to our
ability to continue as a going concern. We will continue to require substantial additional capital to continue our clinical development activities
and may need such additional capital sooner than 12 months. Accordingly, we will need to raise substantial additional capital to continue to
fund our operations. The amount and timing of our future funding requirements will depend on many factors, including the pace and results of
our development, regulatory approvals and authorizations, commercialization efforts and market conditions. Failure to raise capital as and
when  needed,  on  favorable  terms  or  at  all,  would  have  a  negative  impact  on  our  financial  condition  and  our  ability  to  develop  and
commercialize our product candidates.

We intend to obtain additional capital through the sale of equity securities in one or more offerings or through issuances of debt instruments.
We may also consider new collaborations or selectively partnering our technology. However, we cannot provide any assurance that we will
be successful in accomplishing any of our plans to obtain additional capital or be able to do so on terms acceptable to us.

Results of Operations

The following table sets forth the consolidated results of our operations for the year ended December 31, 2021 compared to the year ended
December 31, 2020.

Grant revenue

$

Research and development expenses
General and administrative expenses
Change in fair value of warrant liability
Government grants and other income
Net loss

Grant Revenue

Year ended December 31

2021

2020

$

1,840,216
8,548,520
6,104,627
44,693
—

5,233,301
6,913,853
6,105,793
258,551
178,587

Change

$

(3,393,085)
1,634,667
(1,166)
(213,858)
(178,587)

(5,419,031)

$

$

$

(12,768,238)

$

(7,349,207)

Grant revenue, which was derived solely from the CPRIT grant, was $1.8 million during the year ended December 31, 2021 compared to
$5.2 million during the year ended December 31, 2020. During 2021, we reached the maximum amount of the eligible spending that can be
reimbursed from CPRIT.

Research and Development Expenses

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Research and development expenses were $8.5 million during the year ended December 31, 2021 compared to $6.9 million during the year
ended December 31, 2020. This increase of $1.6 million was principally due to higher headcount in 2021, increased clinical trial cost in 2021
directly tied to patients enrollment, more spending on lab material and nonclinical activities, partially offset by decreased manufacturing cost.

General and Administrative Expense

General and administrative expenses were $6.1 million for the year ended December 31, 2021 compared to $6.1 million for the year ended
December 31, 2020, consistent with prior year.

Change in Fair Value of Warrant Liability

The change in fair value of warrant liability in current year was primarily due to the fluctuation of the price of our common stock which was
$0.5 per share on December 31, 2021 compared to $0.9 per share on December 31, 2020 and our common stock price was $3.8 per share
on December 31, 2019.

Liquidity and Capital Resources

Since inception, we have incurred operating losses and we anticipate that we will continue to incur losses for the foreseeable future. To date,
we have generated revenue from the CPRIT grant, and have not generated any cash inflows from product sales.

We have known material contractual obligations which will require cash to meet their requirements. These applicable obligations include our
lease  agreement  for  our  facilities,  and  our  employment  contracts.  We  also  plan  to  deploy  cash  for  other  research  and  development  and
general and administrative operating expenses. Our ability to continue meeting these contractual obligations will be reliant upon our ability to
secure significant additional capital funding.

We do not know when, or if, we will generate any revenue from product sales. We do not expect to generate any revenue from product sales
unless  and  until  we  obtain  regulatory  approval  for  and  commercializes  any  of  our  product  candidates,  all  of  which  are  in  early  stages  of
development.  At  the  same  time,  we  expect  our  expenses  to  increase  in  connection  with  our  ongoing  development  and  manufacturing
activities,  particularly  as  we  continue  the  research,  development,  manufacture  and  clinical  trials  of,  and  seek  regulatory  approval  for  our
product candidates.

As of December 31, 2021, we had $28.1 million of working capital and our cash and cash equivalents totaled $29.2 million, which were held
in bank accounts and money market account. Our cash and cash equivalents balance increased during the year ended December 31, 2021,
primarily due to the capital received from financing activities partially offset by our net loss incurred.

Liquidity

Net cash (used in) provided by:
Operating activities
Investing activities
Financing activities
Net increase in cash and cash equivalents

Year Ended December 31
2021

2020

$

$

(10,200,197)
—
28,295,963

18,095,766

$

$

(10,311,363)
(2,600)
17,693,677

7,379,714

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Net proceeds from issuance of equity securities
Payments on note payable
Net proceeds from warrants exercised for cash
Net cash provided by financing activities

$

2020

Year Ended December 31
2021
27,287,638 
(477,028)
1,485,353 
28,295,963  $

14,798,944 
(974,435)
3,869,168 
17,693,677 

Net cash provided by financing activities was $28.3 million and $17.7 million for the years ended December 31, 2021 and 2020. This
increase of $10.6 million resulted primarily from higher proceeds from the sale of our common shares during the first and third quarters of
2021, partially offset by lower net proceeds from warrants exercised for cash. Principal payments on the insurance financing note were $0.5
million during the year ended December 31, 2021 compared to $1.0 million for the year ended December 31, 2020.

Capital Resources

We expect to continue to incur additional costs associated with our ongoing research and development activities and our continued operation
as  a  public  company.  In  addition,  subject  to  obtaining  regulatory  approval  of  any  of  our  product  candidates,  we  anticipate  we  will  need
substantial additional funding in connection with our continuing operations.

We have no products approved for commercial sale, have not generated any revenue from product sales to date and have suffered recurring
losses from operations since our inception. The lack of revenue from product sales to date and recurring losses from operations since our
inception raise substantial doubt as to our ability to continue as a going concern. Until we can generate a sufficient amount of revenue from
our products, if ever, we expect to finance future cash needs through public or private equity or debt offerings. Additional capital may not be
available on reasonable terms, if 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 one or more of our product candidates. Based
on our expected cash requirements, we believe that there is substantial doubt that our existing cash and cash equivalents will be sufficient to
fund our operation through one year from the date of this report.

We  expect  our  research  and  development  expenses  to  substantially  increase  in  connection  with  our  ongoing  activities,  particularly  as  we
advance our product candidates in or towards clinical development.

Our future capital requirements are difficult to forecast and will depend on many factors, including but not limited to:

•

•

•

•

•

•

•

the terms and timing of any strategic alliance, licensing and other arrangements that we may establish;

the initiation and progress of our ongoing pre-clinical studies and clinical trials for our product candidates;

the number of programs we pursue;

the outcome, timing and cost of regulatory approvals;

the cost and timing of hiring new employees to support our continued growth;

the costs involved in patent filing, prosecution, and enforcement; and

the costs and timing of having clinical supplies of our product candidates manufactured.

We expect to finance our future cash needs primarily through the issuance of additional equity and potentially through borrowing, strategic
alliances  with  partner  companies,  and  grants.  To  the  extent  that  we  raise  additional  capital  through  the  issuance  of  additional  equity  or
convertible debt securities, the ownership interest of our stockholders will be diluted, and the terms of these securities may include liquidation
or other preferences that adversely affect the rights of existing stockholders. Debt financing, if available, may involve agreements that include
covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring
dividends.  If  we  raise  additional  funds  through  marketing  and  distribution  arrangements  or  other  collaborations,  strategic  alliances  or
licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research
programs or product candidates or grant

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licenses on terms that may not be favorable to us. If we are unable to raise additional funds through equity or debt financings when needed,
we may be required to delay, limit, reduce or terminate our product development or commercialization efforts or grant rights to develop and
market product candidates to third parties that we would otherwise prefer to develop and market itself.

Successful  development  of  product  candidates  is  highly  uncertain  and  may  not  result  in  approved  products.  Completion  dates  and
completion costs can vary significantly for each product candidate and are difficult to predict. We anticipate that we will make determinations
as  to  which  programs  to  pursue  and  how  much  funding  to  direct  to  each  program  on  an  ongoing  basis  in  response  to  the  scientific  and
clinical  success  of  each  product  candidate  and  ongoing  assessments  as  to  each  product  candidate’s  commercial  potential.  Our  failure  to
raise capital or enter into such other arrangements as and when needed would have a negative impact on our financial condition and our
ability to develop our product candidates.

Critical Accounting Policies and Significant Judgments and Estimates

Our  management's  discussion  and  analysis  of  our  financial  condition  and  results  of  operations  is  based  on  our  consolidated  financial
statements, which have been prepared in accordance with GAAP. The preparation of these consolidated financial statements requires us to
make estimates, judgments and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and
liabilities as of the date of the consolidated balance sheet and the reported amounts of expenses during the reporting period. In accordance
with  GAAP,  we  base  our  estimates  on  historical  experience  and  on  various  other  assumptions  that  we  believe  are  reasonable  under  the
circumstances at the time such estimates are made. Actual results may differ materially from our estimates and judgments under different
assumptions or conditions. We periodically review our estimates in light of changes in circumstances, facts and experience. The effects of
material revisions in estimates are reflected in our consolidated financial statements prospectively from the date of the change in estimate.

Our significant accounting policies are described in Note 2 to our audited consolidated financial statements for the year ended December 31,
2021 in this Annual Report on Form 10-K. We believe that our accounting policies relating to revenue recognition, research and development
expenses,  stock-based  compensation  and  fair  value  of  financial  instruments  are  the  most  critical  to  understanding  and  evaluating  our
reported financial results. We have identified these policies as critical because they both are important to the presentation of our financial
condition  and  results  of  operations  and  require  us  to  make  judgments  and  estimates  on  matters  that  are  inherently  uncertain  and  may
change  in  future  periods.  For  more  information  regarding  these  policies,  you  should  refer  to  Note  2  of  our  audited  consolidated  financial
statements included in this Annual Report on Form 10-K.

Off-Balance Sheet Arrangements

We have not entered into any off-balance sheet arrangements and does not have any holdings in variable interest entities.

Application of New Accounting Standards

In December 2019, the FASB issued ASU No. 2019-12, Simplifying the Accounting for Income Taxes (Topic 740). The guidance eliminates
certain exceptions for recognizing deferred taxes for investments, performing intra-period allocation and calculating income taxes in interim
periods.  This  guidance  also  includes  guidance  to  reduce  complexity  in  certain  areas,  including  recognizing  deferred  taxes  for  tax  goodwill
and allocating taxes to members of a consolidated group. ASU 2019-12 is effective for annual and interim periods in fiscal years beginning
after  December  15,  2020.  The  adoption  of  ASU  2019-12  in  the  first  quarter  of  2021  did  not  have  a  material  impact  on  the  Company’s
consolidated financial statements.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

The market risk inherent in our financial instruments and in our financial position represents the potential loss arising from adverse changes
in interest rates. As of December 31, 2021, our cash was primarily held in money market account. Therefore, we have minimal market risk
related to the fair market value of our portfolio.

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Item 8. Financial Statements and Supplementary Data

SALARIUS PHARMACEUTICALS, INC.

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm PCAOB ID (42)
Consolidated Balance Sheets
Consolidated Statements of Operations
Consolidated Statements of Cash Flows
Consolidated Statement of Stockholders' Equity (Deficit)
Notes to Consolidated Financial Statements

61
63
64
65
66
67

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Report of Independent Registered Public Accounting Firm

To the Shareholders and the Board of Directors of Salarius Pharmaceuticals, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Salarius Pharmaceuticals, Inc. (the Company) as of December 31, 2021
and 2020, the related consolidated statements of operations, stockholders’ equity (deficit) and cash flows for each of the two years in the
period ended December 31, 2021, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion,
the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2021 and
2020, and the results of its operations and its cash flows for each of the two years in the period ended December 31, 2021, in conformity with
U.S. generally accepted accounting principles.

The Company’s Ability to Continue as a Going Concern

The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern. As
discussed  in  Note  1  to  the  consolidated  financial  statements,  the  Company  has  a  lack  of  revenue  from  product  sales  and  has  suffered
recurring losses from operations since its inception and has stated that substantial doubt exists about the Company's ability to continue as a
going concern. Management's evaluation of the events and conditions and management’s plans regarding these matters are also described
in Note 1. The consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.

Basis for Opinion

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

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

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

Critical Audit Matter

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

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Description of the
Matter

How We
Addressed the
Matter in Our Audit

Goodwill impairment evaluation
At  December  31,  2021,  the  Company’s  goodwill  balance  was  $8.8  million.  As  discussed  in  Note  2  of  the  financial
statements, goodwill is tested for impairment at least annually or more frequently if indicators of impairment require
the performance of an interim impairment assessment. The test can be qualitative in nature through consideration of
economic factors at the macro and micro level or can be quantitative through a calculated analysis. Management did
not identify any impairment indicators during the year and therefore performed its annual assessment as required. A
quantitative assessment was not deemed necessary based on the qualitative assessment performed.

Auditing management’s annual goodwill impairment test was complex as considerable management judgment was
necessary  to  assess  and  weigh  the  effect  of  relevant  events  and  circumstances  on  management’s  evaluation  of
whether  it  is  more  likely  than  not  that  the  fair  value  of  the  reporting  unit  is  less  than  its  carrying  amount.  The
Company’s  impairment  assessment  is  sensitive  to  assumptions  related  to  potential  adverse  events  and
circumstances,  including  current  market  trends  in  control  premiums  and  involves  judgement  in  determining
comparable peer companies to include in the control premium evaluation.
Our substantive procedures to test the Company’s goodwill impairment analysis included, among others, assessing
the methodology and factors considered within the analysis and testing the qualitative factors discussed above and
the underlying data used by the Company in its analysis. We compared the qualitative factors used by management
to  current  industry  and  economic  trends,  current  market  trends  in  control  premiums  for  observable  transactions  of
comparable  peer  companies,  relevant  entity-specific  events,  and  other  relevant  factors  to  assess  for  potential
contrary evidence. In addition, we performed a sensitivity analysis of the assumption related to current market trends
in control premium to evaluate the changes in the analysis that would result from changes in this assumption.

/s/ Ernst & Young LLP
We have served as the Company’s auditor since 2019.
Houston, Texas
March 25, 2022

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SALARIUS PHARMACEUTICALS, INC.
CONSOLIDATED BALANCE SHEETS

Assets
Current assets:

Cash and cash equivalents
Grants receivable from CPRIT
Prepaid expenses and other current assets

Total current assets
Grants receivable from CPRIT
Property and equipment, net
Goodwill
Other assets

Total assets
Liabilities and stockholders' equity (deficit)
Current liabilities:

Accounts payable
Accrued expenses and other current liabilities
Note payable
Warrant liability

Total liabilities

Commitments and contingencies (NOTE 5)

Stockholders' equity (deficit):
Preferred stock, $0.0001 par value; 10,000,000 shares authorized; none issued or
outstanding
Common stock, $0.0001 par value; 100,000,000 shares authorized; 45,241,808 and
23,810,541 shares issued at December 31, 2021 and December 31, 2020, and 45,241,808
and 23,808,546 shares outstanding at December 31, 2021 and December 31, 2020,
respectively
Additional paid-in capital
Accumulated deficit
Total stockholders' equity

Total liabilities and stockholders' equity

December 31,
2021

December 31,
2020

$

$

$

$

$

29,214,380 
— 
949,215 
30,163,595 
1,610,490 
7,880 
8,865,909 
185,994 
40,833,868 

1,543,096 
553,269 
— 
14,518 
2,110,883 

— 

4,524 
70,915,653 
(32,197,192)
38,722,985 
40,833,868 

$

$

$

$

$

11,118,614 
3,855,996 
822,050 
15,796,660 
— 
22,639 
8,865,909 
247,113 
24,932,321 

1,853,756 
383,138 
477,028 
59,211 
2,773,133 

— 

2,381 
41,585,761 
(19,428,954)
22,159,188 
24,932,321 

See accompanying notes to consolidated financial statements.

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Revenue:
Grant revenue
Operating expenses:

Research and development
General and administrative

Total operating expenses
Loss before other income (expense)
Change in fair value of warrant liability
Government grants and other income
Net loss

SALARIUS PHARMACEUTICALS, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS

Twelve Months Ended December 31

2021

2020

$

1,840,216 

$

5,233,301 

8,548,520 
6,104,627 
14,653,147 
(12,812,931)
44,693 
— 
(12,768,238)

—
(12,768,238)

(0.31)

(0.31)
41,365,955 

$

$

$
$

$

$

$

$

6,913,853 
6,105,793 
13,019,646 
(7,786,345)
258,551 
175,540 
(7,352,254)

(396,407)
(7,748,661)

(0.50)
(0.50)

15,578,611 

Fair value increase related to warrant modification

Loss attributable to common stockholders

Loss per common share — basic and diluted

Total net loss per share

Weighted-average number of common shares outstanding — basic and diluted

See accompanying notes to consolidated financial statements.

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SALARIUS PHARMACEUTICALS, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS

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

Depreciation, amortization and impairment
Equity-based compensation expense
Change in fair value of warrant liability
Changes in operating assets and liabilities:

Grants receivable
Prepaid expenses and other current assets
Accounts payable
Accrued expenses and other current liabilities
Deferred revenue

Net cash used in operating activities

Investing activities
Purchase of property and equipment
Net cash used in investing activities

Financing activities
Proceeds from issuance of equity securities
Warrants exercised for cash
Payments on note payable
Net cash provided by financing activities
Net increase in cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash at beginning of period

Cash, cash equivalents and restricted cash at end of period

Supplemental disclosure of cash flow information:
Cash paid for interest
Non-cash investing and financing activities:
Change in accrued capital expenditures
Accrued issuance costs for warrants exercised for cash
Prepaid expense financed by note payable

Twelve Months Ended December 31

2021

2020

$

(12,768,238) $

(7,352,254)

19,183 
559,044 
(44,693)

2,245,506 
(70,470)
(310,660)
170,131 
— 
(10,200,197)

18,058 
319,391 
(258,551)

(3,855,996)
1,140,117 
(2,782)
222,355 
(541,701)
(10,311,363)

— 
— 

(2,600)
(2,600)

27,287,638 
1,485,353 
(477,028)
28,295,963 
18,095,766 
11,118,614 
29,214,380  $

14,798,944 
3,869,168 
(974,435)
17,693,677 
7,379,714 
3,738,900 
11,118,614 

1,468  $

8,663 

—  $
—  $
$

8,657 
56,915 
949,131 

$

$

$
$

See accompanying notes to consolidated financial statements.

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SALARIUS PHARMACEUTICALS, INC.
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT)

Common Stock
Shares
4,511,174 

Amount
451 

Preferred Stock
Shares

Amount
— 

— 

Additional
Paid-In
Capital
22,657,103 

Accumulated
Deficit
(12,076,700)

Total
Stockholders'
Equity (Deficit)
10,580,854 

13,483,870 

1,348 

1,246,519 

125  14,797,471 

1,246,519 
4,517,910 

125 
452 

(1,246,519)
— 

(125)
— 

— 
3,811,801 

Balance at December 31, 2019
Issuance of equity securities,
net
Preferred shares converted to
common shares
Warrants exercised for cash
Equity-based compensation
expense
Issuance of equity securities
for services
Modification of warrants
exercise prices and terms
Increase in fair value for
warrants modification
Net loss

Balance at December 31, 2020
Issuance of equity securities,
net
Warrants exercised for cash
Equity-based compensation
expense
Issuance of equity securities
for services
Net loss
Balance at December 31, 2021

30,509 

18,564 

— 

3 

2 

— 

— 
— 
23,808,546 

— 
— 
2,381 

20,054,556 
1,298,567 

2,006 
130 

73,951 

7 

6,188 
— 
45,241,808 

— 
— 
4,524 

— 

— 

— 

— 
— 
— 

— 
— 

— 

— 

— 

— 

— 
— 

— 

— 

— 

— 
— 

— 

14,798,944 

— 
3,812,253 

269,393 

49,998 

396,407 

(396,407)
(7,352,254)
22,159,188 

27,287,638 
1,485,353 

559,044 

— 
(12,768,238)
38,722,985 

— 

— 

— 

269,390 

49,996 

396,407 

(396,407)
— 

— 
— 
—  $41,585,761  $ (19,428,954) $

— 
(7,352,254)

—  27,285,632 
1,485,223 
— 

559,037 

— 

— 

— 
— 
—  $ (12,768,238)

—  $70,915,653  $ (32,197,192) $

See accompanying notes to consolidated financial statements.

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SALARIUS PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1. ORGANIZATION AND OPERATIONS

Nature of Business

Salarius Pharmaceuticals, Inc. (“Salarius” or the “Company”), together with its subsidiaries, Salarius Pharmaceuticals, LLC, Flex Innovation
Group  LLC,  and  TK  Pharma,  Inc.,  is  a  clinical-stage  biotechnology  company  focused  on  developing  effective  epigenetic-based  cancer
treatments for indications with high unmet medical need. Salarius’ lead epigenetic enzyme technology was licensed from the University of
Utah  Research  Foundation  in  2011.  The  Company  is  located  in  Houston,  Texas.  The  Company  merged  with  Flex  Pharma,  Inc.  ("Flex
Pharma") on July 19, 2019 through a reverse acquisition, Flex Pharma was renamed Salarius Pharmaceuticals, Inc. after the merger.

Going Concern

Salarius  has  no  products  approved  for  commercial  sale,  has  not  generated  any  revenue  from  product  sales  to  date  and  has  suffered
recurring  losses  from  operations  since  its  inception.  The  lack  of  revenue  from  product  sales  to  date  and  recurring  losses  from  operations
since its inception raise substantial doubt as to the Company's ability to continue as a going concern. The accompanying financial statements
are  prepared  using  accounting  principles  generally  accepted  in  the  United  States  applicable  to  a  going  concern,  which  contemplates  the
realization  of  assets  and  the  satisfaction  of  liabilities  in  the  normal  course  of  business.  The  financial  statements  do  not  include  any
adjustments relating to the recoverability and classification of recorded asset amounts and classification of liabilities should the Company be
unable  to  continue  as  a  going  concern.  Salarius  will  require  substantial  additional  capital  to  fund  its  research  and  development  expenses
related to its oncology drug. Based on Salarius’ expected cash requirements, Salarius believes that there is doubt that its existing cash and
cash equivalents, will be sufficient to fund its operations through one year from the financial statements issuance date. The Company intends
to obtain additional capital through the sale of equity securities in one or more offerings or through issuances of debt instruments, and may
also consider new collaborations or selectively partnering its technology. However, the Company cannot provide any assurance that it will be
successful in accomplishing any of its plans.

Risks Related to Covid-19 Pandemic

The  COVID-19  pandemic  is  significantly  affecting  the  United  States,  global  economies,  and  businesses  worldwide.  While  the  potential
magnitude  and  duration  of  the  economic  and  social  impact  of  the  COVID-19  pandemic  is  difficult  to  assess  or  predict,  the  impact  on  the
global financial markets may, in the future, reduce our ability to access capital, which could negatively impact our short-term and long-term
liquidity. At this time we are experiencing minimal disruption to our clinical trials. However, our ongoing Phase 1/2 Ewing sarcoma clinical trial
and Phase 1/2 AST clinical trial may encounter delays in enrolling new patients due to concerns or healthcare resource constraints because
of  the  COVID-19  pandemic.  In  addition,  although  at  this  time  we  have  experienced  no  disruptions  to  manufacturing  capabilities,  certain
aspects  of  our  supply  chain  may  be  disrupted  as  certain  of  our  third  party  suppliers  and  manufacturers  have  paused  their  operations  in
response  to  the  COVID-19  pandemic  or  have  otherwise  encountered  delays  in  providing  supplies  and  services.  The  COVID-19  pandemic
could also have a material and negative impact on our liquidity, capital resources (including our ability to secure additional financing if and
when  needed),  our  business  and  operations,  and  our  workforce,  as  well  as  those  of  the  third  parties  with  which  we  do  business  or  upon
which we rely. While the situation is fluid and we do not yet know the full extent of potential delays or impacts on us or on healthcare systems
or the global economy in general, we have worked to adapt to the unexpected and challenging circumstances resulting from the COVID-19
pandemic. However, we may experience disruptions in the future that have and could further adversely impact our business operations as
well as our preclinical studies and clinical trials.

NOTE 2. BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The accompanying consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the
United States ("GAAP"). Any reference in these notes to applicable guidance is meant to

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refer to the authoritative GAAP as found in the Accounting Standard Codification ("ASC") and Accounting Standards Update ("ASU") of the
Financial Accounting Standards Board ("FASB").

The  Company  considered  its  going  concern  disclosure  requirements  in  accordance  with  ASC  205-40-50.The  Company  has  performed  an
analysis and concluded substantial doubt exists with respect to the Company being able to continue as a going concern through one year
from the date of issuance of the consolidated financial statements for the year ended December 31, 2021.

Principles of Consolidation

The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All significant intercompany
balances and transactions have been eliminated in consolidation.

Use of Estimates

The  preparation  of  financial  statements  in  conformity  with  accounting  principles  generally  accepted  in  the  United  States  of  America  as
defined by the FASB ASC requires management to make estimates and assumptions that affect certain reported amounts and disclosures.
Accordingly, actual results could differ from those estimates.

Reclassification

Certain reclassifications of prior period presentations have been made to conform to the current period presentation.

Cash and Cash Equivalents

Salarius considers all highly-liquid investments with original maturities of three months or less to be cash equivalents.

The  Company  maintains  several  bank  accounts  including  an  interest-bearing  account  for  funds  received  from  Cancer  Prevention  and
Research Institution of Texas ("CPRIT").

Intangibles

Intangible  assets  that  have  finite  useful  lives  are  amortized  over  their  useful  lives,  and  are  reviewed  for  impairment  when  warranted  by
economic conditions. Intangible assets are included in other assets in the Company's Consolidated Balance Sheets.

Impairment of Long-Lived Assets

Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that their carrying value may not be
recoverable. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized in the amount by
which the carrying amount of the asset exceeds the fair value of the asset. There were no impairment charges related to long-lived assets
during the twelve months ended December 31, 2021 and 2020.

Goodwill

Goodwill  is  not  amortized,  but  is  tested  at  least  annually  for  impairment  at  the  reporting  unit  level.  The  Company  has  determined  that  the
reporting  unit  is  the  single  operating  segment  disclosed  in  its  current  financial  statements.  Additional  impairment  assessments  may  be
performed on an interim basis if the Company encounters events or changes in circumstances that would indicate that, more likely than not,
the carrying value of goodwill has been impaired.

Impairment is the condition that exists when the carrying amount of goodwill exceeds its implied fair value. The Company utilizes the option
to  perform  a  qualitative  assessment  for  its  reporting  unit  and  if  the  Company  concludes  it  is  more  likely  than  not  that  the  fair  value  of  the
reporting unit is less than its carrying amount, then the Company utilizes the two-step quantitative assessment. The Company’s qualitative
assessment  is  sensitive  to  assumptions  related  to  potential  adverse  events  and  circumstances,  including  current  market  trends  in  control
premiums and involves judgement in determining comparable peer companies to include in the control premium evaluation. Many

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of  the  events  and  circumstances  evaluated  in  determining  whether  it  is  more  likely  than  not  that  goodwill  is  impaired  are  outside  of  the
Company’s control and could change in future periods. There was no impairment of goodwill in 2021 or 2020.

Financial Instruments and Credit Risks

Financial  instruments  that  potentially  subject  the  Company  to  credit  risk  include  cash  and  cash  equivalents  and  restricted  cash.  Cash  is
deposited in demand accounts in federally insured domestic institutions to minimize risk. Insurance is provided through the Federal Deposit
Insurance Corporation (“FDIC”). Although the balances in these accounts exceed the federally insured limit from time to time, the Company
has not incurred losses related to these deposits.

Warrants

The  Company  determines  whether  warrants  should  be  classified  as  a  liability  or  equity.  For  warrants  classified  as  liabilities,  the  Company
estimates the fair value of the warrants at each reporting period using Level 3 inputs with changes in fair value recorded in the Consolidated
Statement of Operations within change in fair value of warrant liability. The estimates in valuation models are based, in part, on subjective
assumptions, including but not limited to stock price volatility, the expected life of the warrants, the risk-free interest rate and the fair value of
the common stock underlying the warrants, and could differ materially in the future. The Company will continue to adjust the fair value of the
warrant liability at the end of each reporting period for changes in fair value from the prior period until the earlier of the exercise or expiration
of the applicable warrant. For warrants classified as equity contracts, the Company allocates the transaction proceeds to the warrants and
any other free-standing instruments issued in the transaction based on an allowable allocation method.

Clinical Trial Accruals

The Company’s preclinical and clinical trials are performed by third party contract research organizations (CROs) and/or clinical investigators,
and clinical supplies are manufactured by contract manufacturing organizations (CMOs). Invoicing from these third parties may be monthly
based upon services performed or based upon milestones achieved. The Company accrues these expenses based upon its assessment of
the status of each clinical trial and the work completed, and upon information obtained from the CROs and CMOs. The Company’s estimates
are dependent upon the timeliness and accuracy of data provided by the CROs and CMOs regarding the status and cost of the studies, and
may  not  match  the  actual  services  performed  by  the  organizations.  This  could  result  in  adjustments  to  the  Company’s  research  and
development expenses in future periods. To date the Company has had no significant adjustments.

Grants Receivable and Revenue Recognition

Salarius’ source of revenue has been from a grant received from CPRIT. Grant revenue is recognized when qualifying costs are incurred and
there is reasonable assurance that conditions of the grant have been met. Cash received from grants in advance of incurring qualifying costs
is  recorded  as  deferred  revenue  and  recognized  as  revenue  when  qualifying  costs  are  incurred.  The  Company  records  revenue  and  a
corresponding grants receivable when qualifying costs are incurred before the grants are received.

Research and Development Costs

Research  and  development  costs  consist  of  expenses  incurred  in  performing  research  and  development  activities,  including  pre-clinical
studies  and  clinical  trials.  Research  and  development  costs  include  salaries  and  personnel-related  costs,  consulting  fees,  fees  paid  for
contract research services, the costs of laboratory equipment and facilities, license fees and other external costs. Research and development
costs are expensed when incurred.

Equity-Based Compensation

Salarius measures equity-based compensation based on the grant date fair value of the awards and recognizes the associated expense in
the financial statements over the requisite service period of the award, which is generally the vesting period.

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The Company uses the Black-Scholes option valuation model to estimate the fair value of the stock-based compensation and incentive units.
Assumptions utilized in these models include expected volatility calculated based on implied volatility from traded stocks of peer companies,
dividend yield and risk-free interest rate. Additionally, forfeitures are accounted for in compensation cost as they occur.

Loss Per Share

Basic net loss per share is calculated by dividing the net loss applicable to common stockholders by the weighted average number of shares
of  common  stock  outstanding  during  the  period.  Since  the  Company  was  in  a  loss  position  for  all  periods  presented,  diluted  net  loss  per
share is the same as basic net loss per share for all periods, as the inclusion of all potential common shares outstanding is anti-dilutive.

The  number  of  anti-dilutive  shares,  consisting  of  common  shares  underlying  (i)  common  stock  options,  (ii)  stock  purchase  warrants,  (iii)
unvested restricted stock and (iv) rights entitling holders to receive warrants to purchase the Company's common shares, which have been
excluded  from  the  computation  of  diluted  loss  per  share,  was  9,531,198  and  10,796,149  shares  as  of  December  31,  2021  and  2020,
respectively.

Income Taxes

Income taxes are recorded in accordance with FASB ASC Topic 740, Income Taxes ("ASC 740"), which provides for deferred taxes using an
asset  and  liability  approach.  Under  this  method,  deferred  tax  assets  and  liabilities  are  determined  based  on  the  difference  between  the
financial  reporting  and  the  tax  reporting  basis  of  assets  and  liabilities  and  are  measured  using  the  enacted  tax  rates  and  laws  that  are
expected to be in effect when the differences are expected to reverse. The Company provides a valuation allowance against net deferred tax
assets unless, based upon the available evidence, it is more likely than not that the deferred tax assets will be realized. The Company has
evaluated available evidence and concluded that the Company may not realize the benefit of its deferred tax assets; therefore, a valuation
allowance has been established for the full amount of the deferred tax assets.

The  Company  accounts  for  uncertain  tax  positions  in  accordance  with  the  provisions  of  ASC  740.  When  uncertain  tax  positions  exist,  the
Company recognizes the tax benefit of tax positions to the extent that the benefit will more likely than not be realized. The determination as to
whether the tax benefit will more likely than not be realized is based upon the technical merits of the tax position as well as consideration of
the available facts and circumstances. As of December 31, 2021 and 2020, the Company did not have any significant uncertain tax positions
and  no  interest  or  penalties  have  been  charged.  The  Company's  practice  is  to  recognize  interest  and/or  penalties  related  to  income  tax
matters in income tax expense. The Company is subject to routine audits by taxing jurisdictions.

Application of New Accounting Standards

In December 2019, the FASB issued ASU No. 2019-12, Simplifying the Accounting for Income Taxes (Topic 740). The guidance eliminates
certain exceptions for recognizing deferred taxes for investments, performing intra-period allocation and calculating income taxes in interim
periods.  This  guidance  also  includes  guidance  to  reduce  complexity  in  certain  areas,  including  recognizing  deferred  taxes  for  tax  goodwill
and allocating taxes to members of a consolidated group. ASU 2019-12 is effective for annual and interim periods in fiscal years beginning
after  December  15,  2020.  The  adoption  of  ASU  2019-12  in  the  first  quarter  of  2021  did  not  have  a  material  impact  on  the  Company’s
consolidated financial statements.

Pronouncements Not Yet Adopted

In June 2016, the FASB issued ASU No. 2016-13, Financial  Instruments  —  Credit  Losses  (Topic  326):  Measurement  of  Credit  Losses  on
Financial Instruments, which requires the measurement of all expected credit losses for financial assets including trade receivables held at
the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Subsequent to the issuance
of ASU 2016-13, the FASB issued ASU 2018-19, Codification Improvements to Topic 326, Financial Instruments - Credit Losses. This ASU
does  not  change  the  core  principle  of  the  guidance  in  ASU  2016-13,  instead  these  amendments  are  intended  to  clarify  and  improve
operability of certain topics included within the credit losses guidance. The FASB also subsequently issued ASU No. 2019-04, Codification
Improvements to Topic 326, Financial Instruments—Credit Losses, Derivatives and Hedging (Topic 815), and Financial Instruments (Topic
842), which did not change the core

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principle of the guidance in ASU 2016-13 but clarified that expected recoveries of amounts previously written off and expected to be written
off  should  be  included  in  the  valuation  account  and  should  not  exceed  amounts  previously  written  off  and  expected  to  be  written  off.  The
guidance is effective for fiscal years, and interim periods within those years, beginning after December 15, 2019 for public business entities,
excluding  smaller  reporting  companies.  Early  adoption  is  permitted.  As  a  smaller  reporting  company,  the  guidance  will  be  effective  for  the
Company  during  the  first  quarter  of  2023.  The  Company  is  in  the  process  of  assessing  the  impact  adoption  will  have  on  its  consolidated
financial statements.

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NOTE 3. GRANTS RECEIVABLE

Grants receivable represents qualifying costs incurred where there is reasonable assurance that conditions of the grant have been met but
the corresponding funds have not been received as of the reporting date. Grants receivable balances are $1.6 million and $3.9 million as of
December 31, 2021 and December 31, 2020, respectively. Grant receivables are classified as current or non-current receivables based on
the Company’s best estimate of whether or not the amounts will be collected within one year of the balance sheet date.

NOTE 4. PREPAID EXPENSES AND OTHER CURRENT ASSETS

Prepaid 

expenses 

and 

other 

current 

assets 

at  December 

31, 

2021 

and 

2020 

consisted 

of 

the 

following: 

Prepaid clinical trial expenses
Prepaid insurance
Other prepaid and current assets

Total prepaid expenses and other current assets

December 31, 2021

December 31, 2020

$

$

97,557  $

678,672 
172,986 
949,215  $

— 
684,268 
137,782 
822,050 

Prepaid insurance is comprised of prepaid directors' and officers' insurance. In July 2020, the Company financed their directors' and officers'
insurance premium with a short term note, the principal amount of which was approximately $0.9 million, bearing interest at a rate of 2.49%.
The note payable balance was $0.5 million as of December 31, 2020 and is included within Current Liabilities on the Consolidated Balance
Sheet. In July 2021, the Company paid the directors' and officers' insurance policy in full.

NOTE 5. COMMITMENTS AND CONTINGENCIES

License Agreement with the University of Utah Research Foundation

In 2011, the Company entered into a license agreement with the University of Utah, under which, the Company acquired license to LSD 1. In
exchange for the license, the Company issued 2% equity ownership in the Company based on a fully diluted basis at the effective date of the
agreement  and  subject  to  certain  adjustments  specified  in  the  agreement,  granted  revenue  sharing  rights  on  any  resulting  products  or
processes  to  commence  on  first  commercial  sale,  and  milestone  payments  based  upon  regulatory  approval  of  any  resulting  product  or
process as well as on the second anniversary of first commercial sale.

Cancer Prevention and Research Institute of Texas

In  June  2016,  the  Company  entered  into  a  Cancer  Research  Grant  Contract  with  CPRIT.  Pursuant  to  the  contract,  CPRIT  awarded  the
Company a grant up to $18.7 million, further modified to $16.1 million to fund development of LSD 1 inhibitor. This is a 3-year grant award
originally expired on May 31, 2019. The grant now expires on May 31, 2022.

The  Company  will  retain  ownership  over  any  intellectual  property  developed  under  the  contract  ("Project  Result").  With  respect  to  non-
commercial use of any Project Result, the Company agreed to grant to CPRIT a nonexclusive, irrevocable, royalty-free, perpetual, worldwide
license  with  right  to  sublicense  any  necessary  additional  intellectual  property  rights  to  exploit  all  Project  Results  by  CPRIT,  other
governmental entities and agencies of the State of Texas, and private or independent institutions of higher education located in Texas, for
education, research and other non-commercial purposes.

The Company is obligated to make revenue-sharing payments to CPRIT with respect to net sales of any product covered by the contract, up
to  a  maximum  repayment  of  certain  percentage  of  the  aggregate  amount  paid  to  the  Company  by  CPRIT  under  the  CPRIT  contract.  The
payments are determined as a percentage of net sales, which may be reduced if the Company is required to obtain a license from a third
party to sell any such product. In addition, upon meeting the foregoing limitation on revenue-sharing payments, the Company agreed to make
continued revenue-sharing payments to CPRIT of less than 1% of net sales.

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At December 31, 2021 and December 31, 2020, the Company had grants receivable of $1.6 million and $3.9 million, respectively, related to
CPRIT contract.

Lease Agreement

The Company presently leases office space under operating lease agreements on a month to month basis.

6. FAIR VALUE OF FINANCIAL INSTRUMENTS

Certain assets and liabilities are carried at fair value under GAAP. Fair value is defined as the exchange price that would be received for an
asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction
between  market  participants  on  the  measurement  date.  Valuation  techniques  used  to  measure  fair  value  must  maximize  the  use  of
observable inputs and minimize the use of unobservable inputs. A fair value hierarchy based on three levels of inputs, of which the first two
are considered observable and the last is considered unobservable, are used to measure fair value:

Level 1-Unadjusted quoted prices in active markets for identical assets or liabilities.

Level 2-Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; or
other  inputs  that  are  observable  or  can  be  corroborated  by  observable  market  data  for  substantially  the  full  term  of  the  assets  or
liabilities.

Level 3-Significant unobservable inputs including Salarius’ own assumptions in determining fair value.

The  Company  believes  the  recorded  values  of  its  financial  instruments,  including  cash  and  cash  equivalents,  accounts  payable  and  note
payable approximate their fair values due to the short-term nature of these instruments.

The  following  table  sets  forth  a  summary  of  changes  in  the  fair  value  of  Level  3  liabilities,  the  warrants  associated  with  the  Flex  Pharma
merger measured at fair value on a recurring basis for the twelve months ended December 31, 2021 and 2020:

Description

Warrant liability

Balance at December 31,
2020

Change in Fair Value

Balance at December
31, 2021

$

59,211  $

(44,693) $

14,518 

7. STOCKHOLDERS' EQUITY

Preferred Stock and Common Stock

On February 11, 2020, the Company completed a public offering with total gross proceeds of approximately $11.0 million, which includes the
full  exercise  of  the  underwriter's  over-allotment  option  to  purchase  an  additional  1,252,173  shares  and  warrants  prior  to  deducting
underwriting  discounts  and  commissions  and  offering  expenses  payable  by  Salarius  (the  “February  Offering”).  The  February  Offering  was
comprised of 7,101,307 Class A units, priced at a public offering price of $1.15 per unit, with each unit consisting of one share of common
stock and a five-year warrant to purchase one share of common stock at an exercise price of $1.15 per share, and 1,246,519 Class B units,
priced at a public offering price of $1.15 per unit, with each unit consisting of one share of Series A convertible preferred stock and a five-
year warrant to purchase one share of common stock with and exercise price of $1.15 per share. A total of 8,343,480 shares of common
stock, 1,246,519 shares of Series A convertible preferred stock, and warrants to purchase up to 9,599,999 shares of common stock were
issued in the offering, including the full exercise of the over-allotment option. The exercise price of the warrants are fixed and do not contain
any variable pricing features or any price based anti-dilutive features. All Series A preferred stock was converted to common stock prior to
December 31, 2020.

As  discussed  above,  in  connection  with  the  February  2020  Offering,  the  Company  issued  five-year  warrants  to  purchase  one  share  of
common stock at an exercise price of $1.15 per share (each a "warrant"). On December 11,

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2020, the Company entered into warrant exercise inducement offer letters (“Inducement Letters”) with certain holders of 3,964,065 Warrants
(collectively, the “Exercising Holders”) pursuant to which such holders agreed to exercise on December 11, 2020 for cash, their Warrants to
purchase 3,964,065 shares of Common Stock in exchange for the Company’s agreement to (i) lower the exercise price of the Warrants held
by the Exercising Holders to $0.90 and (ii) issue new warrants (the “Inducement Warrants”) to purchase up to 3,964,065 shares of Common
Stock.  Each  Inducement  Warrant  is  exercisable  at  a  price  per  share  of  $1.182  and  expires  on  June  11,  2026.  As  of  December  31,  2021,
there was 3,964,065 inducement warrants and 3,783,522 warrants from February 2020 Offering were still outstanding, respectively.

On August 3, 2020, the Company completed a public offering of 5,130,390 shares of its common stock at a price of $1.20 per share. Total
gross proceeds were approximately $6.2 million, prior to deducting underwriting discounts and commissions and offering expenses payable
by the Company.

On February 5, 2021, the Company entered into an At the Market Offering Agreement ("ATM") with Ladenburg Thalmann & Co. Inc. Under
this agreement the Company is able to issue and sell, from time to time, shares of its common stock. On February 5, 2021 and July 2, 2021,
the Company filed prospectus supplements with the SEC to register the offering and sale of Common Stock having an aggregate offering
price  of  up  to  $6.3  million  and  $25.0  million,  respectively.  During  the  twelve  months  ended  December  31,  2021,  the  Company  issued
3,247,834 shares under the ATM for gross proceeds of $6.8 million.

On March 8, 2021, the Company completed a public offering of 16,806,722 shares of its common stock at a price to the public of $1.3685 per
share. Total gross proceeds from the offering were approximately $23.0 million prior to deducting underwriting discounts and commissions
and offering expenses payable by the Company.

Warrants Exercised for Cash

During the twelve months ended December 31, 2021 and 2020, the Company issued 1,298,567 and 4,517,910 common shares as a result of
warrant exercises, and received cash proceeds of approximately $1.5 million and $3.9 million, respectively.

Right to Warrants

On January 3, 2019, Flex Pharma, Private Salarius and Merger Sub entered into the Merger Agreement. Pursuant to the Merger Agreement,
Flex Pharma distributed one right per share of common stock to stockholders of record as of the close of business on July 18, 2019. Each
right entitles such stockholders to receive a warrant to purchase the Company's common shares on January 20, 2020. These warrants were
issued on July 1, 2021 and are exercisable in the aggregate, into 142,711 shares of the Company's common stock with a 5-year term from
January 20, 2020, at an exercise price of $15.17 per share. The warrants are subject to a cashless exercise, at the option of the Company, at
the closing of an issuance and sale of the Company’s common stock in certain qualified financing, upon the closing of which the holders of
warrants  shall  be  entitled  to  receive  a  number  of  shares  of  common  stock  equal  to  the  greater  of  two  formulae  defined  by  the  Merger
Agreement, which are based on the volume weighted average price of the Company's common stock during the 10 consecutive trading days
ending on the trading day immediately preceding the date of exercise. As a result, the warrants have been classified as a liability.

The Company accounted for these warrants at fair value using Level 3 inputs. The Company determined the fair value of this warrant liability
using  a  Black-Scholes  valuation  model.  Using  this  method,  unobservable  inputs  included  the  Company’s  equity  value,  expected  timing  of
possible outcomes, risk free interest rates and stock
price volatility.

Variables used in the Black-Scholes model are as follows:

December 31, 2021

December 31, 2020

Discount rate
Expected life (years)
Expected volatility
Expected dividend

0.27 %
4.06 years
130.56 %
— %

0.97 %
3.06 years
125.58 %
— %

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Wedbush Warrant

On July 19, 2019, upon the closing of the merger, the Company elected to issue warrants to purchase 42,928 common shares to Wedbush
Securities  Inc.  ("Wedbush")  to  satisfy  $0.5  million  of  the  $1.0  million  success  fee  payable  to  Wedbush  at  the  closing  of  the  merger.  The
remaining  $0.5  million  success  fee  was  paid  in  cash.  These  warrants  have  an  exercise  price  of  $18.90  and  a  5-year  term.  As  of
December 31, 2021, all warrants issued to Wedbush were outstanding.

8. EQUITY-BASED COMPENSATION

Equity Incentive Plans

The  Company  has  granted  options  to  employees,  directors,  and  consultants  under  the  2015  Equity  Incentive  Plan  (the  "2015  Plan").  The
2015  Plan  provides  for  the  grant  of  incentive  stock  options  ("ISOs"),  nonstatutory  stock  options,  restricted  stock  awards,  restricted  stock
units, stock appreciation rights, performance-based stock awards and other stock-based awards. Additionally, the 2015 Plan provides for the
grant of performance-based cash awards. ISOs may be granted only to the Company's employees. All other awards may be granted to the
Company's employees, including officers, and to non-employee directors and consultants. As of December 31, 2021 and 2020, there were
1,026,690 and 108,348 shares, respectively, remaining available for the grant of stock option under the 2015 Plan.

During the twelve months ended December 31, 2021 and 2020, the Company awarded 79,000 and 1,468,118, respectively, stock options to
its  employees  and  directors,  pursuant  to  the  plan  described  above.  Stock  options  generally  vest  over  one  to  four  years  and  have  a
contractual term of ten years. Stock options are valued using the Black-Scholes option pricing model and compensation cost is recognized
based on the resulting value over the service period. Expected volatilities utilized in the model are based on implied volatilities from traded
stocks of peer companies. Similarly, the dividend yield is based on historical experience and the estimate of future dividend yields. The risk-
free interest rate is derived from the U.S. Treasury yield curve in effect at the time of grant. The expected term of the options is based on the
average  period  the  stock  options  are  expected  to  remain  outstanding.  The  fair  value  of  the  option  grants  of  $92,191  and  $1,196,469
respectively, has been estimated with the following assumptions for the year ended December 31, 2021 and 2020:

Risk-free interest rate
Volatility
Expected life (years)
Expected dividend yield

2021
0.93%-1.09%
130.44%-133.35%
6 years
0.00%

2020
0.28%-0.555%
113.17%-130.41%
5-6 years
0.00%

75

Table of Contents

The following table summarizes stock option activity for employees and non-employees for the twelve months ended December 31, 2021 and
2020: 

Outstanding at December 31, 2019

Granted
Exercised
Forfeited
Expired

Outstanding at December 31, 2020
Exercisable at December 31, 2020

Granted
   Exercised
   Forfeited
   Expired

Outstanding at December 31, 2021
Exercisable at December 31, 2021

Weighted-
Average
Exercise Price
34.42 
0.93 
— 
— 
— 

Shares

166,233  $

1,468,118 
— 
36,613 
33,766 
1,563,972  $
73,975  $

79,000  $
— 
45,000 
— 

1,597,972  $
683,346  $

Weighted-
Average
Remaining
Contractual
Term (in years)

Aggregate
Intrinsic
Value

6.53 $

— 

2.44 
35.89 

1.02 

2.75 
4.85 

4.87 $
5.41 $

175,770 
— 

8.50 $
8.21 $

— 
— 

As  of  December  31,  2021  and  2020,  there  was  approximately  $0.9  million  and  $1.3  million  of  total  unrecognized  compensation  cost,
respectively, related to unvested stock options. Total unrecognized compensation cost will be adjusted for future changes in employee and
non-employee forfeitures, if any. The Company expects to recognize that cost over a remaining weighted-average period of 2.22 years.

During the year ended December 31, 2020, the Company granted 1,468,118 stock options, in the aggregate, to certain employees, directors.
These awards vest monthly over 5 months to 4 years as continuous services are provided, and expense is being recognized over this period.
Total compensation cost related to stock options were $0.2 million for the year ended December 31, 2020.

During  the  year  ended  December  31,  2021,  the  Company  granted  79,000  stock  options,  in  the  aggregate,  to  certain  employees.  These
award vest over 4 years as continuous services are provided, and expense is being recognized over this period. Total compensation cost
related to stock options were $0.5 million for the year ended December 31, 2021

During  the  year  ended  December  31,  2021,  the  Company  granted  73,951  shares  of  common  stock  to  its  Employee  Stock  Purchase  Plan
("ESPP") participants. Fair value of the grants are valued using the Black-Scholes option pricing model and compensation cost is recognized
based on the resulting value over the derived service period.

9. INCOME TAX

The Company has no current or deferred tax expense due to its current year loss and its overall net operating loss position. A reconciliation
of the federal statutory tax rate and the effective tax rates for the year ended December 31, 2021 and 2020 is as follows:    

76

 
Table of Contents

Federal Tax at Statutory Rate
Permanent
Change in Valuation Allowance
Other items
R&D Credit

Effective Tax Rate

2021
21.00%
(0.69)%
(26.13)%
—%
5.82%

—%

December 31

2020
21.00%
0.63%
(25.65)%
(0.40)%
4.42%

—%

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets were as follows:

Capitalized R&D Expenses

Other Deferred Items
Stock Compensation
Net Operating Loss - US
R&D Credits

Net deferred tax assets

Valuation Allowance
Net deferred tax assets (liabilities)

December 31

2021

2020

3,002,819  $
121,152 
50,650 
1,931,959 
1,068,451 
6,175,031 

1,725,015 
87,432 
28,048 
673,186 
325,329 
2,839,010 

(6,175,031)

—  $

(2,839,010)
— 

$

$

The valuation allowance recorded by the Company as of December 31, 2020 and December 31, 2021 resulted from the uncertainties of the
future  utilization  of  deferred  tax  assets  caused  by  the  lack  of  future  taxable  income.  The  deferred  tax  asset  was  reviewed  for  expected
utilization using a “more likely than not” approach by assessing the available positive and negative evidence surrounding its recoverability.
Accordingly, a full valuation allowance continues to be recorded against the Company’s deferred tax asset, as it was determined based upon
past and projected future losses that it was “more likely than not” that the Company’s deferred tax assets would not be realized. In future
years,  if  the  deferred  tax  assets  are  determined  by  management  to  be  “more  likely  than  not”  to  be  realized,  the  recognized  tax  benefits
relating to the reversal of the valuation allowance will be recorded. The Company will continue to assess and evaluate strategies that will
enable the deferred tax asset, or portion thereof, to be utilized, and will reduce the valuation allowance appropriately as such time when it is
determined that the “more likely than not” criteria is satisfied.

The federal net operating loss carryforwards of $9.2 million have an indefinite life, but the R&D credits of $1.1 million begin to expire in 2039.
Due to the change in ownership provisions of the Internal Revenue Code, the availability of the Company’s net operating loss carry forwards
could be subject to annual limitations against taxable income in future periods, which could substantially limit the eventual utilization of such
carry forwards. The Company has not analyzed the historical or potential impact of its equity financings on beneficial ownership and therefore
no  determination  has  been  made  whether  the  net  operating  loss  carry  forward  is  subject  to  any  Internal  Revenue  Code  Section  382
limitation. To the extent there is a limitation, there could be a reduction in the deferred tax asset with an offsetting reduction in the valuation
allowance.

Tax positions taken or expected to be taken in the course of preparing the Company’s tax returns are required to be evaluated to determine
whether the tax positions are “more-likely-than-not” of being sustained by the applicable tax authority. Tax positions not deemed to meet a
more-likely-than-not threshold, as well as accrued interest and penalties, if any, would be recorded as an interest and penalties expense in
the  current  year.  There  were  no  uncertain  tax  positions  that  require  accrual  or  disclosure  to  the  financial  statements  as  of  December  31,
2021.

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Table of Contents

10. SUBSEQUENT EVENTS

On January 12, 2022, the Company, entered into an Acquisition and Strategic Collaboration Agreement (the “ASCA”), effective January 12,
2022 (the “Effective Date”), with DeuteRx, LLC, a Delaware limited liability company (the “Seller”), pursuant to which the Seller agreed to sell,
and  Company  agreed  to  purchase  and  assume  from  Seller,  all  of  Seller’s  rights,  title,  and  interest  in  and  to  certain  assets  of  the  Seller,
including the development product currently referred to as DRX-164 (the “Product”), Seller’s intellectual property, information and data related
to  the  Product,  tangible  materials  or  reagents  related  to  the  Product,  goodwill,  rights  and  claims,  other  than  certain  excluded  assets
(collectively, the “Purchased Assets”), all as more specifically set forth in the ASCA, and assume certain Assumed Liabilities (as defined in
the ASCA), upon the terms and subject to the conditions set forth in the ASCA. Contemporaneous with the execution of the ASCA, the Seller
and Company entered into a R&D Services Agreement (as defined in the ASCA), which sets forth the terms and conditions upon which Seller
will provide services to Company, including the implementation and performance of a Non-Clinical and Clinical Development Scope of Work
(collectively, the “Transaction”).

The Purchased Assets were purchased for an aggregate purchase price of $1,500,000 (the “Cash Payment”) and the delivery of one million
(1,000,000) shares of the Company’s common stock (the “Shares” and together with the Cash Payment, the “Purchase Price”). In addition to
the Purchase Price for the Purchased Assets, the Company agreed to pay to Seller (i) Milestone Payments (as defined in the ASCA) upon
the  occurrence  of  an  applicable  Milestone  Event  (as  defined  in  the  ASCA)  and  (ii)  Royalty  Payments  (as  defined  in  the  ASCA).  All  cost
related  to  the  transaction  will  be  immediately  expensed  in  2022  as  acquired  in-process  research  and  development  expenses  since  the
Product  has  not  yet  achieved  regulatory  approval  and,  absent  obtaining  such  approval,  has  no  alternative  future  use.  A  member  of  the
Company’s Board of Directors also serves as a consultant to the Seller and is employed by an affiliate of the Seller.

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

None.

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We  maintain  a  system  of  disclosure  controls  and  procedures  that  is  designed  to  ensure  that  information  required  to  be  disclosed  in  our
Exchange Act reports is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC,
and  that  such  information  is  accumulated  and  communicated  to  our  management,  including  our  principal  executive  officer  and  principal
financial officer, as appropriate, to allow timely decisions regarding required disclosures.

As  of  December  31,  2020,  our  management,  including  our  principal  executive  officer  and  principal  financial  officer,  had  evaluated  the
effectiveness of the design and operation of our disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-
15(e)) pursuant to Rule 13a-15(b) under the Exchange Act. Based upon and as of the date of the evaluation, our principal executive officer
and principal financial officer concluded that information required to be disclosed is recorded, processed, summarized and reported within the
specified  periods  and  is  accumulated  and  communicated  to  management,  including  our  principal  executive  officer  and  principal  financial
officer, to allow for timely decisions regarding required disclosure of material information required to be included in our periodic SEC reports.
In  connection  with  the  audit  of  our  consolidated  financial  statements  as  of  and  for  the  years  ended  December  31,  2017  and  2018,  we
identified  a  material  weakness  in  our  internal  control  over  financial  reporting  related  to  the  failure  to  evaluate  or  identify  the  accounting
implication  of  various  transactions  which  was  mainly  due  to  the  lack  of  accounting  personnel  with  necessary  knowledge  and  experience
related to financial reporting. During the year ended December 31, 2019, we designed and implemented processes and internal controls to
remediate  this  material  weakness.  We  engaged  consultants  and  added  accounting  personnel,  including  a  Chief  Financial  Officer  and
Controller,  with  necessary  knowledge  and  experience.  With  the  oversight  of  senior  management  and  our  audit  committee,  we  have  taken
steps to remediate the underlying causes of the material weakness. Based on the foregoing, our management determined that our disclosure
controls and procedures were effective as of December 31, 2021.

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Table of Contents

No change in our company’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act)
occurred during the quarter ended December 31, 2021, that has materially affected, or is reasonably likely to materially affect, our internal
control over financial reporting.

Management's Annual Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in
Exchange  Act  Rules  13a-15(f)  and  15d-15(f).  Under  the  supervision  and  with  the  participation  of  our  management,  including  our  principal
executive officer and principal financial and accounting officer, we conducted an evaluation of the effectiveness of our internal control over
financial  reporting  as  of  December  31,  2021  based  on  the  framework  in  Internal  Control—Integrated  Framework  2013  issued  by  the
Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on that evaluation, our management concluded that
our internal control over financial reporting was effective as of December 31, 2021.

Item 9B. Other Information

None

Certain information required by Part III is omitted from this Annual Report on Form 10-K and is incorporated herein by reference from our
definitive proxy statement relating to our 2022 annual meeting of stockholders, pursuant to Regulation 14A of the Exchange Act of 1934, also
referred to in this Annual Report on Form 10-K as our 2022 Proxy Statement, which we expect to file with the SEC no later than May 2, 2022.

PART III

Item 10. Directors, Executive Officers and Corporate Governance

Corporate Governance

We  have  adopted  a  written  Code  of  Business  Conduct  that  applies  to  all  of  our  employees,  officers  and  directors.  This  Code  of  Business
Conduct  is  designed  to  ensure  that  our  business  is  conducted  with  integrity  and  in  compliance  with  SEC  regulations  and  Nasdaq  listing
standards. The Code of Business Conduct covers adherence to laws and regulations as well as professional conduct, including employment
policies, conflicts of interest and the protection of confidential information. The Code of Business Conduct is available under “Governance
Overview” within the “Corporate Governance” section of our website at www.salariuspharma.com.

We intend to disclose any future amendments to, or waivers from, the Code of Business Conduct that affect our directors or senior financial
and  executive  officers  within  four  business  days  of  the  amendment  or  waiver  by  posting  such  information  on  the  website  address  and
location specified above.

Other Information

The other information required to be disclosed in Item 10 is hereby incorporated by reference to our 2022 Proxy Statement.

Item 11. Executive Compensation

The information required to be disclosed in Item 11 is hereby incorporated by reference to our 2022 Proxy Statement.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required to be disclosed in Item 12 is hereby incorporated by reference to our 2022 Proxy Statement.

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Table of Contents

Item 13. Certain Relationships and Related Transactions, and Director Independence

The information required to be disclosed in Item 13 is hereby incorporated by reference to our 2022 Proxy Statement.

Item 14. Principle Accounting Fees and Services

The information required to be disclosed in Item 14 is hereby incorporated by reference to our 2022 Proxy Statement.

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Table of Contents

PART IV

Item 15. Exhibits, Financial Statement Schedules

(a)(1) Financial Statements.

The financial statements filed as part of this report are listed on the Index to Consolidated Financial Statements on page 63.

(a)(2) Financial Statement Schedules.

We have omitted these schedules because they are not required, or are not applicable, or the required information is shown in the
consolidated financial statements or notes thereto.

(a)(3) Exhibits.

Exhibit
Number
3.1

3.2

3.3

4.1

4.2

4.3

4.4

4.5

4.6

10.1+

10.2*

10.3*

10.4+

Exhibit Title

Amended and Restated Certificate Amended and Restated
Certificate of Incorporation of the Registrant Incorporation of the
Registrant
Certificate of Amendment of Certificate of Incorporation of the
Registrant filed with the Secretary of State of Delaware on July
18, 2019
Amended and Restated Bylaws of the Registrant, effective July
19, 2019

Form of Common Stock Certificate of Form of Common Stock
Certificate of Registrant
Form of Common Stock Purchase Form of Common Stock
Purchase Warrant
Common Stock Purchase Warrant dated February 11, 2020

Form of Inducement Warrant dated December 11, 2020

Form of 2021 Flex Warrants

Description of Registrant's Securities

Form of Indemnification Agreement between the Registrant and
its directors and officers
Exclusive License Agreement, dated August 3, 2011, between
the University of Utah Research Foundation and Salarius
Pharmaceuticals, LLC
Cancer Research Grant Contract, dated June 1, 2016, between
the Cancer Prevention and Research Institute of Texas and
Salarius Pharmaceuticals, LLC
Amended and Restated Executive Employment Agreement,
dated February 5, 2019, between David J. Arthur and Salarius
Pharmaceuticals, LLC

81

Filed with
this Form
10-K

Incorporated by Reference

Form
8-K

8-K

8-K

S-1

S-1/A

8-K

8-K/A

8-K

10-K

8-K

S-4

S-4

S-4

File No.
001-36812
Exhibit 3.1

001-36812
Exhibit 3.1

001-36812
Exhibit 3.2

Date Filed
02/09/2015

07/22/2019

07/22/2019

333-201276
Exhibit 4.1
333-235879
Exhibit 4.8
001-36812
Exhibit 4.1
001-36812
Exhibit 4.1

001-36812
Exhibit 4.1
001-36812
Exhibit 4.11

001-36812
Exhibit 10.1
333-229666
Exhibit 10.1

333-229666
Exhibit 10.3

333-229666
Exhibit 10.5

12/29/2014

02/06/2020

02/12/2020

12/11/2020

07/01/2021

03/18/2021

07/22/2019

02/14/2019

02/14/2019

02/14/2019

Table of Contents

10.5+

10.6+

10.7+

10.8+

10.9+

10.10

Amendment to Amended and Restated Executive Employment
Agreement dated September 10, 2019, among David J. Arthur,
the Registrant and Salarius Pharmaceuticals, LLC
Employment Agreement between Mark J. Rosenblum and
Salarius Pharmaceutical, Inc., dated April 24, 2020
Salarius Pharmaceuticals, Inc., 2015 Equity Incentive Plan, as
amended

Forms of Stock Option Agreement, Notice of Exercise and Stock
Option Grant Notice under the Flex Pharma, Inc. 2015 Equity
Plan
Salarius Pharmaceuticals, Inc., 2015 Employee Stock Purchase
Plan, as amended
At the Market Offering Agreement, dated February 5, 2021,
between Salarius Pharmaceuticals, Inc. and Ladenburg
Thalmann & Co. Inc.

8-K

8-K

8-K

001-36812
Exhibit 10.5

09/16/2019

001-36812
Exhibit 10.1

001-36812
Exhibit 10.1

4/29/2020

06/19/2020

10-K

001-36812
Exhibit 10.4

03/24/2015

8-K

8-K

001-36812
Exhibit 10.2

001-36812
Exhibit 1.1

06/19/2020

02/05/2021

21.1

Subsidiaries of the Registrant

S-1

333-235879
Exhibit 21

01/10/2020

31.2

32.1

23.1
24.1
31.1

Consent of Ernst & Young LLP
Power of attorney (included on Signature Page)
Certification of Principal Executive Officer Pursuant to Securities
Exchange Act Rule 13a-14(a), as adopted pursuant to Section
302 of the Sarbanes-Oxley Act of 2002
Certification of Principal Financial and Accounting Officer
Pursuant to Securities Exchange Act Rule 13a-14(a), as
adopted pursuant to Section 302 of the Sarbanes-Oxley Act of
2002
Certification of Principal Executive Officer Pursuant to 18 U.S.C.
Section 1350, as Adopted Pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002
Certification of Principal Financial Officer Pursuant to 18 U.S.C.
Section 1350, as Adopted Pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002
101.INS
XBRL Instance Document
101.SCH XBRL Schema Document
101.CAL
101.DEF
101.LAB
101.PRE

XBRL Calculation Linkbase Document
XBRL Definition Linkbase Document
XBRL Label Linkbase Document
XBRL Presentation Linkbase Document

32.2

X

X

X

X

X

X

X

X

X

X

X

X

*

+

Portions of this exhibit have been omitted and provided separately to the SEC
pursuant to a request for confidential treatment.
Management contract or compensatory plans or arrangements.

Item 16. Form 10-K Summary
Not applicable.

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Table of Contents

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

March 25, 2022    SALARIUS PHARMACEUTICALS, INC.

SIGNATURES

By: /s/ David J. Arthur
David J. Arthur
President & Chief Executive Officer

Each of the undersigned officers and directors of Salarius Pharmaceuticals, Inc., hereby constitutes and appoints David J. Arthur and Mark J.
Rosenblum, their true and lawful attorney-in-fact and agent, for them and in their name, place and stead, in any and all capacities, to sign
their name to any and all amendments to this Report on Form 10-K, and other related documents, and to cause the same to be filed with the
Securities and Exchange Commission, granting unto said attorneys, full power and authority to do and perform any act and thing necessary
and proper to be done in the premises, as fully to all intents and purposes as the undersigned could do if personally present, and the
undersigned for himself hereby ratifies and confirms all that said attorney shall lawfully do or cause to be done by virtue hereof.

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

capacities 

registrant 

dates 

and 

and 

the 

the 

the 

on 

of 

in 

SIGNATURE

TITLE

/s/ William K. McVicar William K. McVicar Chairman of the Board
/s/ David J. Arthur David J. Arthur

Director, President & Chief Executive Officer (Principal
Executive Officer)
Chief Financial Officer (Principal Financial and Accounting
Officer)
Director
Director

/s/ Mark J. Rosenblum Mark J.
Rosenblum
/s/ Tess Burleson Tess Burleson
/s/ Arnold Hanish
Arnold Hanish
/s/ Paul Lammers Paul Lammers
/s/ Jon Lieber
Jon Lieber
/s/ Bruce McCreedy Bruce McCreedy

Director
Director

Director

DATE

March 25, 2022
March 25, 2022

March 25, 2022

March 25, 2022
March 25, 2022

March 25, 2022
March 25, 2022

March 25, 2022

Consent of Independent Registered Public Accounting Firm

Exhibit 23.1

We consent to the incorporation by reference in the following Registration Statements:

a. Registration Statement (Form S-8 No. 333-201816) pertaining to the 2014 Equity Incentive Plan, 2015 Equity Incentive
Plan and 2015 Employee Stock Purchase Plan of Salarius Pharmaceuticals, Inc. (formerly known as Flex Pharma, Inc.);

b. Registration Statement (Form S-8 Nos. 333-210283, 333-216534, 333-223499, 333-230104, 333-246310 and 333-

262896) pertaining to the 2015 Equity Incentive Plan and 2015 Employee Stock Purchase Plan of Salarius
Pharmaceuticals, Inc. (formerly known as Flex Pharma, Inc.);

c. Registration Statement (Form S-3 No. 333-231010 and 333-252169) of Salarius Pharmaceuticals, Inc. (formerly known as

Flex Pharma, Inc.); and

d. Registration Statement (Form S-1 No. 333-235879) of Salarius Pharmaceuticals, Inc.

of  our  report  dated  March  25,  2022,  with  respect  to  the  consolidated  financial  statements  of  Salarius  Pharmaceuticals,  Inc.
included in this Annual Report (Form 10-K) of Salarius Pharmaceuticals, Inc. for the year ended December 31, 2021.

/s/ Ernst & Young LLP

Houston, Texas
March 25, 2022

Exhibit 31.1

CERTIFICATION PURSUANT TO
RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,
AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, David J. Arthur, certify that:

1.

2.

3.

4.

I have reviewed this annual report on Form 10-K of Salarius Pharmaceuticals, Inc. for the year ended December 31, 2021;

based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this
report;

based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the
financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

the registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-
15(f)) for the registrant and have:

a.

b.

c.

d.

designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under my
supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to me by
others within those entities, particularly during the period in which this report is being prepared;

designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under my
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for
external purposes in accordance with generally accepted accounting principles;

evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report my conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

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

5.

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

a.

b.

all significant deficiencies and material weakness in the design or operation of internal control over financial reporting which are
reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

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

Dated: March 25, 2022

By:

/s/ David J. Arthur

Name: David J. Arthur
Title: Chief Executive Officer
          (Principal Executive Officer)

Exhibit 31.2

CERTIFICATION PURSUANT TO
RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,
AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Mark Rosenblum, certify that:

1.

2.

3.

4.

I have reviewed this Annual Report on Form 10-K for the year ended December 31, 2021 of Salarius Pharmaceuticals, Inc.;

based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this
report;

based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the
financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

the registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-
15(f)) for the registrant and have:

a.

b.

c.

d.

designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by
others within those entities, particularly during the period in which this report is being prepared;

designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for
external purposes in accordance with generally accepted accounting principles;

evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

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

5.

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

a.

b.

all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are
reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

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

Dated: March 25, 2022

By:

/s/ Mark Rosenblum
Name: Mark Rosenblum
Title: Chief Financial Officer
          (Principal Financial Officer)

Exhibit 32.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K for the year ended December 31, 2021 of Salarius Pharmaceuticals,
Inc.  (the  “Company”),  as  filed  with  the  Securities  and  Exchange  Commission  on  the  date  hereof  (the  “Report”),  I,  David  J.
Arthur, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906
of the Sarbanes-Oxley Act of 2002, that:

1.

the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.

the  information  contained  in  the  Report  fairly  presents,  in  all  material  respects,  the  financial  condition  and  results  of
operations of the Company.

Dated: March 25, 2022

By:

/s/ David J. Arthur
Name: David J. Arthur
Title: Chief Executive Officer
          (Principal Executive Officer)

                    
Exhibit 32.2

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K for the year ended December 31, 2021 of Salarius Pharmaceuticals,
Inc.  (the  “Company”),  as  filed  with  the  Securities  and  Exchange  Commission  on  the  date  hereof  (the  “Report”),  I,  Mark
Rosenblum, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section
906 of the Sarbanes-Oxley Act of 2002, that:

1.

the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.

the  information  contained  in  the  Report  fairly  presents,  in  all  material  respects,  the  financial  condition  and  results  of
operations of the Company.

Dated: March 25, 2022

By:

/s/ Mark Rosenblum
Name: Mark Rosenblum
Title: Chief Financial Officer

          (Principal Financial Officer)