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Rexahn Pharmaceuticals, Inc.

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FY2017 Annual Report · Rexahn Pharmaceuticals, Inc.
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____________________________________________________________________________________________
UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)
(cid:59) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) 
OF THE(cid:3)
SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2017

OR

(cid:133) TRANSITION REPORT PURSUANT TO SECTION 13 OR 
15(d) OF
THE SECURITIES EXCHANGE ACT OF 1934(cid:3)

For the transition period from 

to 

Commission File No.:001-34079

Rexahn Pharmaceuticals, Inc.

(Exact name of registrant as specified in its charter)

Delaware
(State or other jurisdiction of incorporation or organization)

11-3516358
(I.R.S. Employer Identification Number)

15245 Shady Grove Road, Suite 455
Rockville, MD 20850
(Address of principal executive offices, including zip code)

Telephone: (240) 268-5300
(Registrant’s telephone number, including area code)

Title of Each Class
Common Stock, $0.0001 par value per share

Name of Each Exchange On Which Registered
NYSE American

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined by Rule-405 of the Securities 
Act. Yes (cid:133) No(cid:59)

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 (cid:133) No (cid:59)(cid:3)
(cid:3)

(cid:3)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of 
the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant 
was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes 
(cid:59) No (cid:133)

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if 
any, every Interactive Data File required to be submitted and posted 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 and post such files). Yes (cid:59) No (cid:133)(cid:3)

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained 
herein; and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. (cid:59)

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer 
or a smaller reporting company. See definition of “accelerated filer,” “large accelerated filer” and “smaller reporting 
company” in Rule 12b-2 of the Exchange Act.
Large Accelerated Filer
Non-Accelerated Filer
(Do not check if a smaller reporting company)

(cid:133) Accelerated Filer
(cid:133) Smaller reporting company
(cid:3) Emerging growth company

(cid:59)
(cid:133)
(cid:133)

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. (cid:133)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act)
Yes (cid:133) No (cid:59)

State the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by 
reference to the price at which the common equity was last sold, or the average bid and asked price of such common 
equity, as of the last business day of the registrant’s most recently completed second fiscal quarter: As of June 30, 
2017, the aggregate market value of the registrant’s common stock held by non-affiliates of the registrant was 
$79,303,524 based on the closing price reported on NYSE American.

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest 
practicable date: 

Class
Common Stock, $0.0001 par value per share

Outstanding as of March 9, 2018
31,744,439 shares

DOCUMENTS INCORPORATED BY REFERENCE

Certain portions of the registrant’s Definitive Proxy Statement for its 2018 Annual Meeting of 
Stockholders, which is expected to be filed with the U.S. Securities and Exchange Commission within 120 days 
after the end of the registrant’s fiscal year ended December 31, 2017, are incorporated by reference into Part III of 
this Annual Report on Form 10-K.

Cautionary Statement Regarding Forward-Looking Statements.

This Annual Report on Form 10-K contains statements (including certain projections and 

business trends) accompanied by such phrases as “believe,” “estimate,” “expect,” “anticipate,” “will,” 
“intend” and other similar expressions, that are “forward-looking statements” as defined in the Private 
Securities Litigation Reform Act of 1995.    We caution that forward-looking statements are based largely 
on our expectations and are subject to a number of known and unknown risks and uncertainties that are 
subject to change based on factors that are, in many instances, beyond our control. Actual results, 
performance or achievements may differ materially from those contemplated, expressed or implied by the 
forward-looking statements.

Although we believe that the expectations reflected in our forward-looking statements are 
reasonable as of the date we make them, actual results could differ materially from those currently 
anticipated due to a number of factors, including risks relating to:

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our understandings and beliefs regarding the role of certain biological mechanisms and processes 
in cancer;

our drug candidates being in early stages of development, including in pre-clinical development;

our ability to initially develop drug candidates for orphan indications to reduce the time-to-market 
and take advantage of certain incentives provided by the U.S. Food and Drug Administration;

our ability to transition from our initial focus on developing drug candidates for orphan indications 
to candidates for more highly prevalent indications;

our ability to successfully and timely complete clinical trials for our drug candidates in clinical 
development;

uncertainties related to the timing, results and analyses related to our drug candidates in pre-clinical 
development;

our  ability  to  obtain  the  necessary  U.S. and  international  regulatory  approvals  for  our  drug 
candidates;

our reliance on third-party contract research organizations and other investigators and collaborators 
for certain research and development services;

our  ability  to  maintain  or  engage  third-party  manufacturers  to  manufacture,  supply,  store  and 
distribute supplies of our drug candidates for our clinical trials;

our ability to form strategic alliances and partnerships with pharmaceutical companies and other 
partners for sales and marketing of certain of our product candidates;

demand for and market acceptance of our drug candidates;

the scope and validity of our intellectual property protection for our drug candidates and our ability 
to develop our candidates without infringing the intellectual property rights of others;

 
(cid:120)

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our lack of profitability and the need for additional capital to operate our business; and

other risks and uncertainties, including those set forth herein under the caption “Risk Factors” and 
those detailed from time to time in our filings with the Securities and Exchange Commission.

These forward-looking statements are made only as of the date hereof, and we undertake no obligation to 
update or revise the forward-looking statements, whether as a result of new information, future events or 
otherwise.

 
REXAHN PHARMACEUTICALS, INC.
TABLE OF CONTENTS

Description of Business

PART I
Item 1
Item 1A Risk Factors
Item 1B Unresolved Staff Comments
Item 2
Item 3
Item 4 Mine Safety Disclosures

Description of Property
Legal Proceedings

PART II

Selected Financial Data

Item 5 Market for Common Equity, Related Stockholder Matters, and Issuer Purchases of Equity Securities
Item 6
Item 7 Management’s Discussion and Analysis of Financial Condition and Results of Operations
Item 7A Qualitative and Quantitative Disclosures About Market Risk
Item 8
Item 9
Item 9A Controls and Procedures
Item 9B Other Information

Financial Statements and Supplementary Data
Changes In and Disagreements with Accountants on Accounting and Financial Disclosure

PART III

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

Item 10 Directors, Executive Officers, and Corporate Governance
Item 11 Executive Compensation
Item 12
Item 13 Certain Relationships and Related Transactions; and Director Independence 
Item 14
Principal Accounting Fees and Services
Item 15 Exhibits, Financial Statement Schedules
Item 16

Form 10-K Summary

SIGNATURES

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Unless the context requires otherwise, any references in this Annual Report on Form 10-K to “we,” “us,” 
“our,” the “Company” or “Rexahn” refers to Rexahn Pharmaceuticals, Inc.

PART I

Item 1.    Description of Business

Overview 

We are a clinical stage biopharmaceutical company dedicated to the discovery and development of 
innovative treatments for cancer. Our mission is to improve the lives of cancer patients by developing next-
generation cancer therapies that are designed to maximize efficacy while minimizing the toxicity and side 
effects  traditionally  associated  with  cancer  treatment. Our  pipeline  features  two  oncology  product 
candidates  in  Phase  2  clinical  development  and  additional  compounds  in  pre-clinical  development.  Our 
strategy is to continue building a significant pipeline of innovative oncology product candidates that we 
intend to commercialize with partners. Our clinical stage drug candidates in active development are RX-
3117 and RX-5902 (Supinoxin™).   

(cid:120) RX-3117 is a novel, oral, small molecule nucleoside compound.    Once intracellularly activated 
(phosphorylated)  by  the  enzyme  UCK2,  it  is  incorporated  into  the  DNA  or  RNA  of  cells  and 
inhibits  both  DNA  and  RNA  synthesis,  which  induces  apoptotic  cell  death  of  tumor  cells.   
Because  UCK2  is  overexpressed  in  multiple  human  tumors,  but  has  a  very  limited  presence  in 
normal tissues, RX-3117 offers the potential for a targeted anti-cancer therapy with an improved 
efficacy and safety profile, and we believe it has therapeutic potential in a broad range of cancers, 
including pancreatic, bladder, colon, and lung cancer. 
In January 2018,  we reported final data 
from  a  Phase  2a  clinical  trial  of  RX-3117  in  patients  with  relapsed  or  refractory  metastatic 
pancreatic  cancer.  In  this  trial,  encouraging  progression  free  survival  and  evidence  of  tumor 
shrinkage  were  observed  in  patients  with  metastatic  pancreatic  cancer  that  was  resistant  to 
gemcitabine and who had failed on multiple prior treatments. RX-3117 is currently the subject of
a  Phase  2a  clinical  trial  in  combination  with  Abraxane® (paclitaxel  protein-bound) in  patients 
newly diagnosed with metastatic pancreatic cancer. In February 2018, updated safety and efficacy 
data from the ongoing Phase 2a clinical trial of RX-3117 in advanced urothelial (bladder) cancer 
were reported. In this trial, encouraging progression free survival and evidence of tumor shrinkage 
were observed in patients with advanced bladder cancer who had failed on multiple prior treatments 
including  immunotherapy  and  gemcitabine.    RX-3117  has  received  “orphan  drug  designation” 
from the U.S. Food and Drug Administration (“FDA”) and from the European Commission (“EC”)
for pancreatic cancer. Orphan drug designation in the U.S. provides tax incentives for clinical 
research  and  a  waiver  from  user  fees  under  certain  circumstances.  In  addition,  an  orphan  drug 
generally receives seven years of exclusivity in the U.S. after approval for a designated use, during 
which time the FDA generally cannot approve another product with the same active moiety for the 
same indication.   

(cid:120) RX-5902 (Supinoxin) is a potential first-in-class small molecule inhibitor of phosphorylated-p68, 
a protein that we believe plays a key role in cancer cell growth, progression and metastasis through 
its interaction with beta-catenin.    Phosphorylated p68, which is highly expressed in cancer cells, 
but  not  in  normal  cells,  results  in  up-regulation  of  cancer-related  genes  and  a  subsequent 
proliferation  of  cancer  cells  and  tumor  growth.    RX-5902 selectively blocks  the  interaction  of 
phosphorylated  p68  with  beta-catenin,  thereby  decreasing  the  proliferation  or  growth  of  cancer 
cells  in  preclinical  models.    In  addition,  multiple  pre-clinical  models  suggest  that  RX-5902
enhances the efficacy of immunotherapy. We have evaluated RX-5902 in a Phase 1 dose escalation 
study in patients with a diverse range of metastatic, treatment-refractory tumors, including breast, 

1

 
ovarian,  colorectal,  and  neuro-endocrine  tumors.    In  February  2017,  we  initiated  a  Phase  2a 
clinical study of RX-5902 in patients with metastatic triple negative breast cancer (“TNBC”). 

(cid:120) RX-0201 (Archexin) is a potential best-in-class, potent inhibitor of the protein kinase Akt-1, which 
we believe plays a critical role in cancer cell proliferation, survival, angiogenesis, metastasis and 
drug  resistance.    RX-0201  is  the  subject  of  a  research  and  development  collaboration  with 
Zhejiang  Haichang  Biotechnology Co.,  Ltd. (“Haichang”)  for  the  development  of  RX-0201  to 
conduct  certain  pre-clinical  and  clinical  activities  through  completion  of  a  Phase  2a  proof-of-
concept clinical trial in hepatocellular carcinoma (“HCC”) and pursuant to which the parties will 
share any  downstream  licensing  fees  and  royalties  paid  by  third  parties  in  connection  with  the 
further development and commercialization of RX-0201 for the treatment of HCC.    RX-0201 has 
received orphan drug designation from the FDA for renal cell carcinoma (“RCC”), glioblastoma, 
ovarian  cancer,  stomach  cancer  and  pancreatic  cancer.    In  February  2018,  in  response  to  the 
changing treatment landscape for metastatic RCC over the past two years with the approval of new 
therapies by the FDA, we announced plans to discontinue the internally funded programs of RX-
0201  and  ceased  enrolling  patients  in  a  Phase  2a  proof-of-concept  clinical  trial  of  RX-0201  in 
patients with metastatic renal cell carcinoma. 

In addition to our drug development efforts, our nano-based drug delivery systems, such as those 
used in the multiple nanoliposomal- and nanopolymer-based anti-cancer drugs that we are currently testing, 
may increase the availability of a drug at the disease site, minimize adverse reactions, and provide longer 
duration of action.

Company Background

We trace our history to the March 2001 founding of Rexahn, Corp. Dr. Peter D. Suzdak, our Chief 
Executive  Officer  since  February  2013,  has  extensive  experience  in  corporate  management  and  drug 
development, particularly in the field of oncology.   

Our common stock is currently listed on the NYSE American under the trading symbol “RNN.” 
Our  principal  corporate  office  is  located  at  15245  Shady  Grove  Road,  Suite  455,  Rockville, 
Maryland 20850 in Maryland’s I-270 technology corridor.    Our telephone number is (240) 268-5300. 

Industry and Disease Markets 

Market Overview

Our primary research and development focus is oncology therapeutics. A key component of our 
strategy is to develop innovative drugs that are potential first-in-class or market-leading compounds for the 
treatment of cancer. According to the Centers for Disease Control and Prevention, cancer claims the lives 
of  more  than  half  a  million  Americans  each  year  and  is  the  second  leading  cause  of  death  among 
Americans. The World Health Organization estimated in 2018 that there were 14 million new cases of 
cancer diagnosed worldwide in 2012 and that cancer was responsible for 8.8 million deaths in 2015. A
2018  American  Cancer  Society  report  projected  that  an  estimated  1.7  million  new  cancer  cases  will  be 
diagnosed in the United States in 2018. The IQVIA Institute for Human Data Science, formerly the IMS 
Institute for Healthcare Informatics, reported in 2017 that total global spending on oncology medicines, 
including therapeutic treatments and supportive care, reached $113 billion in 2016.

2

 
Current Cancer Treatments

Traditional cancer treatments involve surgery, radiation therapy and chemotherapy.    Surgery is 
widely used to treat cancer but may result in related or significant complications and may be ineffective if 
metastasis has occurred.    Radiation therapy, or radiotherapy, can be highly effective in treating certain 
types of cancer.    In radiation therapy, ionizing radiation deposits energy that injures or destroys cells in 
the area being treated by damaging their genetic material, making it impossible for these cells to continue 
to grow.    Although radiation damages both cancer cells and normal cells, the normal cells are generally 
able to repair themselves and function properly.    Chemotherapy involves the use of cytotoxic cancer drugs 
to destroy cancer cells by interfering with various stages of the cell division process.    For certain cancers 
and  in  certain  patients,  these  drugs  have  limited  efficacy  and  debilitating  adverse  side  effects. 
Administration  of  generally  cytotoxic  cancer  drugs  may  also  result  in  the  development  of  multi-drug 
resistance, a condition that results when certain tumor cells that have survived treatment with cytotoxic 
drugs are no longer susceptible to treatment by those and other drugs.    Recent advances in cancer treatment 
include  the  use  of  cancer-targeted  cytotoxic  agents  and  immunotherapies  to  stimulate  the  body’s  own 
immune system to kill cancer cells.    Immunotherapy can significantly improve survival in certain cancers, 
including  melanoma,  non-small  cell  lung  cancer,  head  and  neck  tumors,  lymphoma  and  renal  cell 
carcinoma.    However, immunotherapy approaches have not been effective in all tumor types and there is 
a risk of over-stimulation of the immune system that can lead to life-threatening autoimmune side-effects, 
such as colitis, pneumonia, and hepatitis.

Unmet Needs in Cancer 

Despite  significant  advances  in  cancer  research  and  treatments,  many  unmet  needs  still  remain 

including: 

(cid:120)

Long-term  management  of  cancers: Surgery,  radiation  therapy  or  chemotherapy  may  not 
result in long-term remission, although surgery and radiation therapies are considered effective 
methods for some cancers.    There is a need for more effective drugs and adjuvant therapies to 
treat relapsed and refractory cancers.

(cid:120) Multi-drug  resistance:    Multi-drug  resistance  is  a  major  obstacle  to  effectively  treating 

various cancers with chemotherapy.

(cid:120) Debilitating toxicity by chemotherapy: Chemotherapy as a mainstay of cancer treatment can 
induce severe adverse reactions and toxicities, adversely affecting quality of life or life itself.

Market Opportunity

There are several factors that we believe are favorable for commercializing new cancer drugs that 

may have the potential to be first-in-class or market leaders, including:

(cid:120) Expedited Regulatory or Commercialization Pathways.    Drugs for life-threatening diseases such 
as cancer are often candidates for fast track designation, breakthrough therapy designation, priority 
review and accelerated approval, each of which may lead to approval sooner than would otherwise 
be the case.

3

 
(cid:120) Favorable  Environment  for  Formulary  Access  and  Reimbursement.    We  believe  cancer  drugs 
with  proven  efficacy  would  gain  rapid  market  uptake,  formulary  listing  and  third-party  payor 
reimbursement.    Drugs with orphan designations are generally reimbursed by third-party payors 
because there are few, if any, alternatives.   

(cid:120)

Low Marketing Costs.    We believe the marketing of new drugs to oncologists can be accomplished 
with a smaller sales force and lower related costs than a sales force that markets widely to primary 
care physicians and general practitioners.

Our Strategy 

Our strategy is to continue building a significant product pipeline of innovative drug candidates 

that we intend to commercialize alone or with partners.    This strategy has several key components.

Develop Innovative Therapeutics with the Potential to be First-in-Class or Market Leaders

We  plan  to  focus  our  research  and  development  pipeline  on  potential  first-in-class  or  market-
leading  compounds  for  the  treatment  of  cancer.    By  expanding  the  breadth  and  depth  of  our  oncology 
pipeline,  we  aim  to  develop  an  industry-leading  oncology  therapeutics  franchise.    Our  pipeline  spans 
several  major  classes  of  cancer drugs,  including  molecular  targeted  therapies  and  nano-medicines  for 
targeted delivery of compounds and small  molecule cytotoxic compounds. Differentiated target product 
profiles and proprietary discovery and research technology platforms further support these strategic efforts.   

Clinically Develop Drug Candidates as Orphan Drugs in Underserved Specialty Oncology Indications

We  intend  to  initially  develop  drug  candidates  for  cancers  that  are  orphan  indications  or  for 
indications where there has been very little innovation and a high unmet need for better treatments.    Under 
the Orphan Drug Act, the FDA may grant orphan drug designation to new drugs developed to treat diseases 
generally affecting less than 200,000 patients.    Benefits associated with orphan drug designation include 
tax incentives for research and development and an exemption from user fees under certain circumstances. 
Although the standards for orphan drug approval are not different than for non-orphan products, the path 
to  approval  may  be  faster  because  clinical  trials  may  be  smaller  due  to  the  smaller  patient  population.   
Further,  a  drug  that  is  approved  for  its  orphan-designated  indication  generally  receives  seven  years  of 
orphan  drug  exclusivity,  during  which  the  FDA  generally  may  not  approve  any  other  application  for  a 
product containing the same active moiety and proposed for the same indication.    An approved orphan 
drug also may  qualify  for an exemption from the branded prescription drug fee.    The European Union 
(“EU”) also has a version of orphan drug designation, which generally carries with it a ten-year period of 
market  exclusivity.    We  plan  to  develop  drug  candidates,  when  possible,  for  cancers  that  are  orphan 
indications  to  take  advantage  of  the  benefits  of  orphan  drug  designation  during  development  and  the 
exclusivity available under applicable law for approved products, as well as the potential for reduced time 
to market.    Assuming positive clinical data, drugs intended to treat rare diseases or conditions also may 
qualify for fast track designation, breakthrough therapy designation, accelerated approval or priority review, 
any or all of which may speed the development and approval process and decrease drug development costs.

Establish Partnerships with Large Pharmaceutical Companies

We seek to establish strategic alliances and partnerships with larger pharmaceutical companies for 

the commercialization and co-development of our drug candidates.

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In-License Unique Technology

We continually review opportunities to in-license and advance compounds in oncology that have 

value-creating potential and will strengthen our clinical development pipeline.   

Capitalize on Our Management Team’s Expertise for Drug Development

Our management team possesses clinical development experience in oncology and several other 
therapeutic areas which facilitates strategic approaches to and competitive advantages in, the design, risk 
assessment  and  implementation  of  drug  development  programs.  Our  management  team  also  has  prior 
experience in pharmaceutical alliances, product launches and marketing.

Our Pipeline Drug Candidates

Clinical Stage Pipeline

RX-3117: Oral Small Molecule Nucleoside

RX-3117 is a novel, investigational, oral small molecule nucleoside compound.    In pre-clinical 
models when activated (phosphorylated) by uridine-cytidine kinase 2, a protein that is overexpressed in 
various human cancer cells, RX-3117 is incorporated into DNA or RNA of cells and inhibits both DNA 
and RNA synthesis, which induces apoptotic cell death of tumor cells. We believe RX-3117 has therapeutic 
potential in a broad range of cancers including pancreatic, bladder, lung, cervical, non-small cell lung cancer 
and  colon  cancer.    RX-3117  has  received  orphan  drug  designation  from  the  FDA and  the  EC for  the 
treatment of patients with pancreatic cancer. RX-3117 has also been shown in animal models to inhibit 
the growth of gemcitabine-resistant human cancers and improve overall survival.   

RX-3117 has demonstrated broad spectrum anti-tumor activity against over 100 different human 
cancer cell lines and efficacy in 17 different mouse xenograft models. Notably, the efficacy of RX-3117 in 
the mouse xenograft models was superior to that of gemcitabine. Further, RX-3117 still retains its full 
anti-tumor activity in human cancer cell lines made resistant to the anti-tumor effects of gemcitabine.
In 
August 2012, we reported the completion of an exploratory Phase 1 clinical trial of RX-3117 in cancer 
patients conducted in Europe to investigate the oral bioavailability, safety and tolerability of the compound. 
In this study, oral administration of a 50 mg dose of RX-3117 demonstrated an oral bioavailability of 56% 
and a plasma half-life (T1/2) of 14 hours. In addition, RX-3117 appeared to be safe and well tolerated in all 
subjects throughout the dose range tested.

Final  results  from  the  Phase  1b clinical  trial  of  RX-3117  presented  at  the  American  Society  of 
Clinical Oncology Annual Meeting in June 2016 showed evidence of single agent activity. Patients in the 
study had generally received four or more cancer therapies prior to enrollment. In this study, 12 patients 
experienced stable disease persisting for up to 276 days and three patients showed evidence of tumor burden 
reduction. A maximum tolerated dose of 700 mg was identified in the study.    At the doses tested to date, 
RX-3117, administered orally, appeared to be safe and well tolerated with a predictable pharmacokinetic
profile following oral administration.

In  March  2016,  we  initiated  a  multi-center  Phase  2a  clinical  trial  of  RX-3117  in  patients  with 
relapsed  or  refractory  pancreatic  cancer  to  further  evaluate  the  safety  and  anti-cancer  properties  of  this 
compound. Patients in the trial received a 700 mg daily oral dose of RX-3117, for five consecutive days, 
followed by two days off, for three weeks, followed by a week of rest, in a 28-day cycle for up to eight 
treatment cycles, or until their disease progressed.    The study was designed as a two-stage study with 10 
patients in stage 1 and an additional 40 patients in stage 2.    According to pre-set criteria, if greater than 

5

 
20% of the patients had an increase in progression free survival of more than four months, or an objective 
clinical response rate and reduction in tumor size, additional pancreatic cancer patients would be enrolled 
into stage 2. Secondary endpoints included time to disease progression, overall response rate and duration 
of response, as well as pharmacokinetic assessments and safety parameters.     

In September 2016, we initiated stage 2 of this Phase 2a clinical trial based on the satisfaction of 
the predefined criteria for preliminary efficacy for stage 1 of the trial that showed RX-3117 was safe and
well tolerated with preliminary efficacy in pancreatic cancer patients for whom three or more prior therapies 
had been ineffective. In January 2018, we presented the final data from this trial at the American Society 
of  Clinical  Oncology  Gastrointestinal  Cancers  2018  Annual  Meeting.  Encouraging  progression  free 
survival  and  evidence  of  tumor  shrinkage  was  observed  in  patients  with  metastatic  pancreatic  cancer 
resistant to gemcitabine who had failed on multiple prior treatments.

In November 2017, we initiated a Phase 2a trial of RX-3117 in combination with Abraxane® in 

patients newly diagnosed with metastatic pancreatic cancer.

In September 2016, we commenced enrollment in a  Phase 2a trial of RX-3117 in patients with 
advanced bladder cancer.    This Phase 2a clinical trial is a multicenter, open-label, single-agent study of 
RX-3117 being conducted at 10 clinical centers in the United States. RX-3117 is being administered orally 
five times weekly on a three weeks on, one week off dosing schedule.  The primary endpoint for the trial 
is an assessment of the progression free survival rate or an objective clinical response rate and reduction in 
tumor size. Secondary endpoints include time to disease progression, overall response rate and duration 
of response, as well as pharmacokinetic assessments and safety. In February 2018, we presented data from 
this  trial  at  the  American  Society  of  Clinical  Oncology  Genitourinary  Cancers  2018  Annual  Meeting. 
Encouraging  progression  free  survival  and  evidence  of  tumor  shrinkage were  observed  in  patients  with 
advanced  bladder  cancer  who  had  failed  on  multiple  prior  treatments  including  immunotherapy  and 
gemcitabine. 

Based on the progress of the RX-3117 clinical development program, we are continuing discussions 
with multiple companies to explore collaborative business structures in an effort to maximize the potential 
value of the program.

RX-5902 (Supinoxin): Potential First-in-Class Inhibitor of Phosphorylated p68

RX-5902 is  a  potential  first-in-class  small  molecule  inhibitor  of  the  interaction  between 
phosphorylated-p68, a protein that we believe plays a key role in cancer growth, progression and metastasis 
and  beta-catenin.    Many  cancers  are  driven  by  beta-catenin-mediated  gene  expression.  Phosphorylated 
p68, which is highly expressed in cancer cells, but not in normal cells, results in up-regulation of cancer-
related  genes  and  a  subsequent  proliferation  of  cancer  cells  and  tumor  growth.    RX-5902 selectively 
blocks the phosphorylated p68-beta catenin interaction, thereby decreasing the proliferation or growth of 
cancer cells.    In pre-clinical tissue culture models and in-vivo xenograft models, RX-5902 has exhibited 
single-agent  tumor  growth  inhibition,  potential  synergy  with  cytotoxic  agents  and  activity  against  drug 
resistant cancer cells.    In particular, in in-vivo xenograft models of human triple negative breast cancer 
and pancreatic cancer, treatment with RX-5902 on days one through 20 in mouse models produced a dose-
dependent inhibition of tumor growth and a survival benefit.

RX-5902 was  evaluated  in  a  Phase  1  dose-escalation  clinical  trial  in  cancer  patients  with  solid 
tumors designed to evaluate the safety, tolerability, dose-limiting toxicities and the recommended Phase 2 
dose.  Secondary  endpoints  include  pharmacokinetic  analyses  and  an  evaluation  of  the  preliminary  anti-
tumor effects of RX-5902.    We completed enrollment in this study in 2016.

6

 
Updated results from the Phase 1 clinical trial of RX-5902 were presented in October 2016 at the 

2016 European Society for Medical Oncology Congress.   

The results showed evidence of single-agent, clinical activity of RX-5902.    In this study, RX-5902
preliminarily appeared to be safe and well tolerated at the doses and dosing schedules tested with no dose 
limiting toxicities or treatment-related serious adverse events.    The most frequently reported drug related 
adverse events were mild nausea, vomiting and fatigue. Initial signs of clinical activity have been observed.   
Twenty-four subjects were enrolled (11 female, 13 male), and seven subjects experienced stable disease in 
breast, neuroendocrine, paraganglioma, head/neck or colorectal cancer.    Three subjects received treatment 
for more than one year. Approximately 55% of the subjects had received four or more therapies prior to 
their enrollment in the Phase 1 clinical study.   

We initiated a Phase 2a study of RX-5902 in patients with triple negative breast cancer in February 
2017.    The study will evaluate the safety and preliminary efficacy of RX-5902 in patients with metastatic 
triple  negative  breast  cancer  who  have  failed  prior  treatments.  We  also  plan  to  evaluate  RX-5902 in 
combination with other anticancer agents in TNBC, assuming positive data from this initial study.   

Based  on  the  progress  of  the  RX-5902 clinical  development  program,  we  are  continuing  our 
discussions with multiple companies to explore collaborative business structures in an effort to maximize 
the potential commercial value of the program.

RX-0201 (Archexin): Potential Best-in-Class Anti-Cancer Akt-1 Inhibitor

RX-0201 is a potential best-in-class, potent anti-sense inhibitor of protein kinase Akt-1 synthesis 
and  activity,  which  we  believe  plays  a  critical  role  in  cancer  cell  proliferation,  survival,  angiogenesis, 
metastasis and drug resistance. RX-0201 has received orphan drug designation from the FDA for RCC,
glioblastoma, ovarian cancer, stomach cancer and pancreatic cancer. We believe RX-0201 is differentiated 
from other Akt-1 inhibitors by its ability to inhibit both activated and inactivated forms of Akt-1, and as a 
result  it  is  not  expected  to  lead  to  drug  resistance,  which  has  been  observed  with  other  protein  kinase 
inhibitors.    Other targeted drugs may only inhibit inactivated Akt-1 and may also cause drug resistance.
Akt-1  is  over-activated  in  patients  with  many  cancers,  including  breast,  colorectal,  gastric,  pancreatic, 
prostate and melanoma cancers.    Akt-1 activity may be inhibited by signaling molecules upstream of Akt-
1 in cancer cells through the use of vascular endothelial growth factor and epidermal growth factor receptor 
inhibitors,  but  this  treatment  only  indirectly  affects  the  activity  of  native  Akt-1.    Because  signal 
transmission for cancer progression and resistance occurs when Akt-1 is activated, we believe it is also 
important to inhibit activated Akt-1.    We believe RX-0201 inhibits both activated and native Akt-1.

RX-0201 is an antisense oligonucleotide compound that is complementary to Akt-1 mRNA and 
highly  selective for  inhibiting  mRNA  expression,  which  leads  to  reduced  production of  Akt-1  protein.
RX-0201 preliminarily appeared to be safe and well tolerated with minimal side effects in a Phase 1 study 
in  patients  with  advanced  cancers,  where  Grade  3  fatigue  was  the  only  dose-limiting  toxicity  and  no 
significant hematological abnormalities were observed. A nano-liposomal formulation of RX-0201 is being 
developed  under  a  collaboration  with  Haichang  using  Haichang’s  proprietary  QTzomes™  technology. 
Under the agreement, Haichang intends to conduct a Phase 2a proof-of-concept clinical study in HCC in 
China.

We  completed  a  Phase  2a  clinical  trial  for  RX-0201 that  was  designed  to  assess  the  safety  and 
efficacy of RX-0201 in combination with gemcitabine. RX-0201 was shown to be safe and well tolerated 
with a preliminary indication of activity. 

7

 
In January 2014, we initiated a Phase 2a proof-of-concept clinical trial of RX-0201 to study its 
safety and efficacy in combination with Afinitor® (everolimus) in patients with metastatic RCC.    The trial 
is being conducted in two stages.    Stage 1 was a dose ranging study, with up to three dose groups with 
three  RCC  patients  each,  to  determine  its  maximum  tolerated  dose  (“MTD”)  in  combination  with 
everolimus.    In January 2016, we completed Stage 1 of the study and commenced enrollment in Stage 2, 
which  is  a  randomized,  open-label,  two-arm  dose  expansion  study  of  everolimus  versus  RX-0201 in
combination with everolimus to determine safety and efficacy of the combination.    This phase of the trial 
(Stage  2)  was  anticipated  to  enroll  up  to  40  RCC  patients  randomized  to  receive  either  RX-0201 in 
combination with everolimus, or everolimus alone, in a ratio of 2:1 The MTD was determined to be 250 
mg/m2/day of RX-0201, which was identified in Stage 1 and was administered in Stage 2 along with 10 mg 
of everolimus compared to 10 mg everolimus alone.    In February 2018, following a portfolio review of 
assets and in response to the changing treatment landscape for RCC patients over the past two years with 
the  approval  of  new  therapies  by  the  FDA,  we  announced  that  we  are  winding  down  internally  funded 
programs of RX-0201 including the cessation of enrollment in this trial. Patients currently enrolled in the 
trial will continue to be followed.

Research and Development Process

We  have  engaged  third-party  contract  research  organizations  and  other  investigators  and 
collaborators, such as universities and medical institutions, to conduct our pre-clinical studies, toxicology 
studies and clinical trials. Engaging third-party contract research organizations is typical practice in our 
industry. However, relying on such organizations means that the clinical trials and other studies described 
above are being conducted at external locations and that the completion of these trials and studies is not 
within our direct control. Trials and studies may be delayed due to circumstances outside our control, and 
such delays may result in additional expenses for us.

Competition

We  compete  against  fully  integrated  pharmaceutical  companies  and  smaller  companies  that  are 
collaborating with larger pharmaceutical companies, as well as academic institutions, government agencies 
and other public and private research organizations. Many of these competitors, either alone or together 
with their collaborative partners, operate larger research and development programs or have substantially 
greater financial resources than we do, as well as more experience in:

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developing drugs;

undertaking pre-clinical testing and human clinical trials;

obtaining FDA and other regulatory approvals of drugs;

formulating and manufacturing drugs; and

launching, marketing and selling drugs.

Large  pharmaceutical  companies  currently  sell  both  generic  and  proprietary  compounds  for  the 
treatment  of  cancer.  In  addition,  companies  developing  oncology  therapies  represent  substantial 
competition. Many of these organizations have substantially greater capital resources, larger research and 
development staff and facilities, history in obtaining regulatory approvals and greater manufacturing and 
marketing capabilities than we do. These organizations also compete with us to attract qualified personnel, 
parties for acquisitions, joint ventures or other collaborations.

8

 
We are aware of products under development by our competitors that target the same indications 
as our clinical stage drug candidates. If approved, RX-3117 could compete with other compounds with an 
anti-metabolite  mechanism  of  action  in  cancers,  such  as  NUC-1301  (Acelarin®),  which  is  under 
development by NuCana and other approved nucleoside analogues such as capecitabine and gemcitabine.   
We are not currently aware of known inhibitors of phosphorylated p68 that would compete with RX-5902
if RX-5902 were approved, but other drugs with a different mechanism of action are in development for 
the  same  indications,  such  as  Immunomedics’  sacitazumab  govitecan  and  Celldex’s  glembatumumab
vedotin, both in development for triple negative breast cancer. Our competitors may succeed in developing 
products  that  are  safer and/or  more  effective  than  ours,  which  could  render  our  product  candidates  less 
competitive prior to recovery by us of expenses incurred with respect to their development.

Government Regulation 

Regulation by governmental authorities in the United States and in other countries is a significant 
consideration in our product development, manufacturing and, upon approval of our product candidates,
marketing strategies.    We expect that all our drug candidates will require regulatory approval by the FDA 
and by similar regulatory authorities in foreign countries prior to commercialization and will be subjected 
to rigorous pre-clinical, clinical, and post-approval testing to demonstrate safety and effectiveness, as well 
as other significant regulatory requirements and restrictions in each jurisdiction in which we would seek to 
market  our  products.    U.S. federal  laws  and  regulations  govern  the  testing,  development,  manufacture, 
quality control, safety, effectiveness, approval, storage, labeling, record keeping, reporting, distribution, 
import, export and marketing of all biopharmaceutical products intended for therapeutic purposes.    We 
believe  that  we  and the  third  parties  that  work  with  us  are  in  compliance  in  all  material  respects  with 
currently applicable rules and regulations, however, any failure to comply could have a material negative 
impact on our ability to successfully develop and commercialize our products, and therefore on our financial 
performance.    In addition, these rules and regulations are subject to change.    For example, in December 
2016, the 21st Century Cures Act (the “Cures Act”) was signed into law. The Cures Act included numerous 
provisions  that  may  be  relevant  to  our  product  candidates,  including  provisions  designed  to  speed 
development of innovative therapies and provide funding for certain cancer-related research and technology 
development.    Because the Cures Act is still relatively new, it is difficult to foresee whether, how, or when 
it may affect our business. Further legislative and regulatory changes appear possible in the 115th United 
States Congress and under the Trump Administration, and it is difficult to foresee whether, how, or when 
such changes may affect our business.

Obtaining  governmental  approvals  and  maintaining  ongoing  compliance  with  applicable 
regulations  are  expected  to  require  the  expenditure  of  significant  financial  and  human  resources  not 
currently at our disposal.    We plan to fulfill our short-term needs through consulting agreements and joint 
ventures with academic or corporate partners while developing our own internal infrastructure for long-
term corporate growth.

Development and Approval

The  process  to  obtain  approval  for  biopharmaceutical  compounds  for  commercialization  in  the 
United States and many other countries is lengthy, complex and expensive, and the outcome is far from 
certain.    Although  foreign  requirements  for  conducting  clinical  trials  and  obtaining  approval  may  be 
different than in the United States, they often are equally rigorous and the outcome cannot be predicted 
with confidence. A key component of any submission for approval in any jurisdiction is pre-clinical and 
clinical data demonstrating the product’s safety and effectiveness.   

9

 
Pre-clinical Testing.    Before testing any compound in humans in the United States, a company 
must  develop  pre-clinical  data,  generally  including  laboratory  evaluation  of  product  chemistry  and 
formulation, as well as toxicological and pharmacological studies in animal species to assess safety and 
quality.    Certain  types  of  animal  studies  must  be  conducted  in  compliance  with  the  FDA’s  Good 
Laboratory  Practice  regulations  and  the  Animal  Welfare  Act,  which  is  enforced  by  the  Department  of 
Agriculture.

IND  Application.    In  the  United  States,  FDA  regulations  require  that  the  person  or  entity 
sponsoring  or  conducting  a  clinical  study  for  the  purpose  of  investigating  a  candidate’s  safety  and 
effectiveness  submit  to  the FDA  an  investigational  new  drug  (“IND”)  application,  which  contains  pre-
clinical  testing  results  and  provides  a  basis  for  the  FDA  to  conclude  that  there  is  an  adequate  basis  for 
testing  the  drug  in  humans.    If  the  FDA  does  not  object  to  the  IND  application  within  30  days  of 
submission, the clinical testing proposed in the IND may begin.    Even after the IND has gone into effect 
and clinical testing has begun, the FDA may put the clinical trials on “clinical hold,” suspending (or in 
some cases, ending) them because of safety concerns or for other reasons.   

Clinical Trials.    Clinical trials involve administering a drug to human volunteers or patients under 
the supervision of a qualified clinical investigator.    Clinical trials are subject to extensive regulation.    In 
the United States, this includes compliance with the FDA’s bioresearch monitoring regulations and Good 
Clinical Practice (“GCP”) requirements, which establish standards for conducting, recording data from, and 
reporting the results of, clinical trials, with the goal of assuring that the data and results are credible and 
accurate and that study participants’ rights, safety and well-being are protected.    Each clinical trial must 
be conducted under a protocol that details the study objectives, parameters for monitoring safety and the 
efficacy criteria, if any, to be evaluated.    The protocol is submitted to the FDA as part of the IND and 
reviewed  by  the  agency  before  the  study  begins.    Additionally,  each  clinical  trial  must  be  reviewed, 
approved and conducted under the auspices of an Institutional Review Board (“IRB”).    The sponsor of a 
clinical trial, the investigators and IRBs each must comply with requirements and restrictions that govern, 
among other things, obtaining informed consent from each study subject, complying with the protocol and 
investigational plan, adequately monitoring the clinical trial, and timely reporting adverse events.    Foreign 
studies conducted under an IND must meet the same requirements applicable to studies conducted in the 
United States.    However, if a foreign study is not conducted under an IND, the data may still be submitted 
to the FDA in support of a product application, if the study was conducted in accordance with GCP and the
FDA is able to validate the data.

Sponsors of clinical trials are required to make public certain information about active clinical trials 
and  trial  results  by  posting  the  information  on  government  or  independent  websites,  such  as 
http://clinicaltrials.gov.    Clinical testing is typically performed in three phases.

In Phase 1, the drug is administered to a small number of human subjects to confirm its safety and 
to  develop  detailed  profiles  of  its  pharmacological  and  pharmacokinetic  actions  (i.e.,  absorption, 
distribution,  metabolism,  and  excretion).    Although  Phase  1 trials  typically  are  conducted  in  healthy 
human subjects, in some instances (including, for example, with some cancer therapies) the study subjects 
are patients with the targeted disease or condition.

In Phase 2, the drug is administered to groups of patients (usually no more than several hundred) 
to develop initial data regarding efficacy against the targeted disease and determine the requisite dose and 
dose intervals, and generate additional information regarding the drug’s safety.    In a typical development 
program, additional animal toxicology studies precede this phase.    In some cases, the trial can be split into 
Phase 2a and 2b studies in order to test smaller subject pools.    Some Phase 1 clinical studies may proceed 
in parallel with some Phase 2 studies.   

10

 
In Phase 3, the drug is administered to a larger group of patients (usually from several hundred to 
several  thousand  or  more).    Phase  3 studies  also  may include  patients  with  concomitant  diseases  and 
medications.    Larger patient populations are evaluated in Phase 3 at multiple study sites and registration 
studies may be conducted concurrently for the sake of time and efficiency.    The extensive clinical testing 
is intended to obtain additional information about product safety and effectiveness necessary to evaluate 
the drug’s overall risk-benefit profile and to provide a basis for physician labeling.    Phase 3 data often 
form the core basis on which the FDA evaluates the product’s safety and effectiveness when considering 
an application to market the drug.

The study sponsor, the FDA or an IRB may suspend or terminate a clinical trial at any time on 
various grounds, including a determination that study subjects are being exposed to an unacceptable health 
risk.    Additionally, success in early-stage clinical trials does not assure success in later-stage clinical trials, 
and data from clinical trials are not always conclusive and may be subject to alternative interpretations that 
could delay, limit or prevent approval.

NDA Submission and Review.    After completing the clinical studies, a sponsor seeking approval 
to market a drug in the United States submits to the FDA a New Drug Application (“NDA”).    The NDA 
is  a  comprehensive,  multi-volume  application  intended  to  demonstrate  the  product’s  safety  and 
effectiveness and includes, among other things, pre-clinical and clinical data, information about the drug’s 
composition, the sponsor’s plans for manufacturing and packaging and proposed labeling.    When an NDA 
is submitted, the FDA makes an initial determination as to whether the application is sufficiently complete 
to be accepted for review.    If the application is not, the FDA may refuse to accept the NDA for filing and 
request  additional  information.    A  refusal  to  file,  which  requires  resubmission  of  the  NDA  with  the 
requested additional information, delays review of the application. 

FDA performance goals regarding the timeliness of NDA review generally provide for action on 
an NDA within 12 months of its submission.    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 eight months after submission 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.    Additionally, the FDA has programs for enhanced communication and consultation and 
other steps to expedite development and review of such products. For example, the Fast Track program 
is intended to facilitate the development and review of new drugs that demonstrate the potential to address 
unmet medical needs involving serious or life-threatening diseases or conditions. If a drug receives Fast 
Track designation, the FDA may review sections of the NDA on a rolling basis, rather than requiring the 
entire application to be submitted to begin the review. Products with Fast Track designation also may be 
eligible for more frequent meetings and correspondence with the FDA about the product’s development.   
Other FDA programs intended to expedite development and review include Accelerated Approval, which 
allows approval on the basis of a surrogate endpoint that is reasonably likely to predict clinical benefit and 
Breakthrough  Therapy  designation,  which  is  available  for  drugs  under  development  for  serious  or  life-
threatening conditions and where preliminary clinical evidence shows that the drug may have substantial 
improvement  on  at  least  one  clinically  significant  endpoint  over  available  therapy.    If  a  drug  receives 
Breakthrough Therapy designation, it will be eligible for all of the benefits of Fast Track designation, as 
well  as  for  more  intensive  guidance  from  the  FDA  on  an  efficient  drug  development  program  and  a 
commitment  from  the  agency  to  involve  senior  FDA  managers  in  such  guidance.    Even  if  a  product 
qualifies for Fast Track designation or Breakthrough Therapy designation, the FDA may later decide that 
the product no longer meets the conditions for designation, and/or may determine that the product does not 
meet the standards for approval. We anticipate, but cannot ensure, that our product candidates will qualify 
for such programs.

11

 
If it concludes that an NDA does not meet the regulatory standards for approval, the FDA typically 
issues  a  Complete  Response  letter,  which communicates  the  reasons  for  the  agency’s  decision  not  to 
approve the application and may request additional information, including additional clinical data.    An 
NDA  may  be  resubmitted  with  the  deficiencies  addressed,  but  that  does  not  guarantee  approval. Data 
from clinical trials are not always conclusive, and the FDA’s interpretation of data may differ from the 
sponsor’s.    Obtaining approval can take years, requires substantial resources and depends on a number of 
factors, including the severity of the targeted disease or condition, the availability of alternative treatments, 
and the risks and benefits demonstrated in clinical trials.    Additionally, as a condition of approval, the 
FDA  may  impose  restrictions  that  could  affect  the  commercial  prospects  of  a  product,  such  as  a  Risk 
Evaluation and Mitigation Strategy, and could require post-approval commitments to conduct additional 
studies or conduct surveillance programs to monitor the drug’s effects.   

Moreover, once a product is approved, information about its safety or effectiveness from broader 
clinical use  may limit  or  prevent  successful  commercialization,  either  because  of  regulatory  action  or 
market forces.    Post-approval modifications to a drug product, such as changes in indications, labeling or 
manufacturing processes or facilities, may require development and submission of additional information 
or data in a new or supplemental NDA, which would also require FDA approval.

One of our drug candidates, RX-0201 is an antisense oligonucleotide (“ASO”) compound. To date, 
the FDA has not approved any NDAs for any ASO compounds for cancer treatment; however, the FDA 
has approved the ASO compounds fomivirsen (marketed as Vitravene®) as a treatment for cytomegalovirus 
retinitis,  and  mipomersen  sodium  (marketed  as  Kynamro®),  as  a  treatment  for  homozygous  familial 
hypercholesterolemia. In addition, RX-0201 is in a drug class known as Akt-1 inhibitors, and drugs from 
this class have not been approved by the FDA to date. 

We have not submitted an NDA for any of our drug candidates.

Exclusivity  and  Patent  Protection.    In  the  United  States  and  elsewhere,  certain  regulatory 
exclusivities  and  patent  rights  can  provide  an  approved  drug  product  with  protection  from  certain 
competitors’  products  for  a  period  of  time  and  within  a  certain  scope.    In  the  United  States,  those 
protections include exclusivity under the Orphan Drug Act, which is available for drugs intended to treat 
rare  diseases  or  conditions,  which  generally  are  diseases  or  conditions  that  affect  fewer  than 
200,000 persons  in  the  United  States.    If  a  sponsor  demonstrates  that  a  drug  is  intended  to  treat  a  rare 
disease or condition and meets other qualifying criteria, the FDA grants orphan drug designation to the 
product  for  that  use.    A  product  that  has  received  orphan  drug  designation  is  eligible  for  research  and 
development tax credits and is exempt from user fees under certain circumstances.    Additionally, a drug 
that  is  approved  for  its  orphan-designated  indication  generally  receives  seven  years  of  orphan  drug 
exclusivity.    During that period, the FDA generally may not approve any other application for a product 
containing the same active moiety and proposed for the same indication.    There are exceptions, however, 
most notably when the later product is shown to be clinically superior to the product with exclusivity.    An 
approved orphan drug also may qualify for an exemption from the branded prescription drug fee.    Products 
that qualify for orphan designation may also qualify for other FDA programs that are intended to expedite 
the development and approval process and, as a practical matter, clinical trials for orphan products may be 
smaller, simply because of the smaller patient population.    Nonetheless, the same approval standards apply 
to orphan-designated products as for other drugs.   

RX-0201 has  received  orphan  drug  designation  from  the  FDA  for  RCC,  glioblastoma,  ovarian 
cancer, stomach cancer and pancreatic cancer.    RX-3117 received orphan drug designation for pancreatic 
cancer from the FDA in September 2014.

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A medicinal product may be granted an orphan designation in the EU if: (i) it would be used to 
treat or prevent a life-threatening or chronically debilitating condition and either affects no more than five 
in 10,000 people in the EU or for economic reasons would be unlikely to be developed without incentives; 
and (ii) no satisfactory method of diagnosis, prevention or treatment of the condition concerned exists, or, 
if  such  a  method  exists,  the  medicinal  product  would  be  of  significant  benefit  to  those  affected  by  the 
condition. The application for orphan designation must be submitted to the European Medicines Agency
(“EMA”) and  approved  prior  to  market  authorization. Once  authorized,  orphan  medicinal  products  are 
entitled to ten years of market exclusivity. During this ten-year period, with limited exceptions, neither the 
competent authorities of the EU Member States, the EMA, nor the EC are permitted to accept applications 
or  grant  marketing  authorization  for  other  similar  medicinal  products  with the  same  therapeutic 
indication. However, marketing authorization may be granted to a similar medicinal product with the same 
orphan indication during that period with the consent of the holder of the marketing authorization or if the 
manufacturer of the product is unable to supply sufficient quantities. Marketing authorization may also be 
granted to a similar medicinal product with the same orphan indication if the latter product is safer, more 
effective or otherwise clinically superior to the original product. The period of market exclusivity may be 
reduced to six years if it can be demonstrated on the basis of available evidence that the original orphan 
medicinal product is sufficiently profitable not to justify maintenance of market exclusivity.

RX-3117 received orphan designation from the EC in January 2018.

Generic Competition. Any drug candidates approved for commercial marketing under an NDA 
would be subject to the provisions of the Drug Price Competition and Patent Term Restoration Act of 1984,
known  as  the  Hatch-Waxman  Act.    Among  other  things,  the  Hatch-Waxman  Act  establishes  two 
abbreviated  approval  pathways  for  drug  products  that  are  in  some  way  follow-on  versions  of  already 
approved NDA products, including generic versions of the approved product, which may be approved under 
an Abbreviated New Drug Application by a showing that the generic product is the “same as” the approved 
product  in  key  respects.    Those  abbreviated  approval  pathways  generally  are  available,  however,  after 
expiration of certain periods of regulatory exclusivity and/or extended patent protection for the approved 
NDA product, which the Hatch-Waxman Act also provides.    These protections include: (1) five years of 
regulatory  exclusivity for a new  chemical entity (generally,  the first approval of a  product  containing a 
particular active moiety), during which an application for a follow-on product cannot be reviewed; (2) three 
years of exclusivity for the approval of an NDA or supplemental NDA that contains data from new clinical
investigations that were necessary for approval, during which the follow-on product may not receive final 
approval; and (3) up to five years’ extension of the term of a patent covering a drug that contains an active 
ingredient not previously approved.    The Hatch-Waxman Act also provides a means for the sponsor of an 
approved NDA to act before approval of a proposed abbreviated NDA to sue to protect patents claiming 
the drug substance, drug product, or an approved method of using the drug.    The laws of other key markets 
likewise  create  both  opportunities  for  exclusivity  periods  and  patent  protections  and  the  possibility  of 
generic  competition  once  such  periods  or  protections  have  either  expired  or  have  been  successfully 
challenged by generic entrants.

Post-Approval Regulation

Once approved, products are subject to continuing extensive regulation by the FDA.    If ongoing 
regulatory requirements are not met, or if safety problems occur after a product reaches market, the FDA 
may take actions to change the conditions under which the product is marketed, including suspending or 
even  withdrawing  approval.    In  addition  to  FDA  regulation,  the  healthcare  industry,  and  therefore  our 
business, is also subject to extensive federal, state, local and foreign regulation.   

Good  Manufacturing  Practices. Companies  engaged  in  manufacturing  drug  products  or  their 
components must comply with applicable current Good Manufacturing Practice (“cGMP”) requirements, 

13

 
which  include  requirements  regarding  organization  and  training  of  personnel,  building  and  facilities, 
equipment, control of components and drug product containers, closures, production and process controls, 
packaging  and  labeling  controls,  holding  and  distribution,  laboratory  controls  and  records  and  reports.   
The FDA inspects equipment, facilities and manufacturing processes before approval and conducts periodic 
re-inspections after approval.    Failure to comply with applicable cGMP requirements or the conditions of 
the  product’s  approval  may  lead  the  FDA  to  take  administrative  enforcement  action.    Although  we 
periodically monitor FDA compliance of the third parties on which we rely for manufacturing our drug 
products, we cannot be certain that our present or future third-party manufacturers will consistently comply 
with cGMP or other applicable FDA regulatory requirements.

Sales and Marketing. Once a product is approved, its advertising, promotion and marketing will 
be  subject  to  close  regulation,  including  with  regard  to  promotion  to  healthcare  practitioners,  direct-to-
consumer  advertising,  communications  regarding  unapproved  uses,  industry-sponsored  scientific  and 
educational activities and promotional activities involving the internet. In addition to FDA restrictions on 
marketing of pharmaceutical products, state and federal fraud and abuse laws have been applied to restrict 
certain marketing practices in the pharmaceutical industry for many years.    Some of the pertinent laws are 
open to a variety of interpretations. In addition, these laws and their interpretations are subject to change. 

Other  Requirements.    Companies  that  manufacture  or  distribute  drug  products  pursuant  to 
approved  NDAs  must  meet  numerous  other  regulatory  requirements,  including adverse  event  reporting, 
submission of periodic reports, and record-keeping obligations.

Fraud and Abuse Laws. At such time as we market, sell and distribute any products for which we 
obtain  marketing  approval,  it  is  possible  that  our  business  activities  could  be  subject  to  scrutiny  and 
enforcement under one or more federal or state health care fraud and abuse laws and regulations, which 
could affect our ability to operate our business.    These restrictions under applicable federal and state health 
care fraud and abuse laws and regulations that may affect our ability to operate include:

(cid:120) The federal Anti-Kickback Law, which prohibits, among other things, knowingly or willingly 
offering, paying, soliciting or receiving remuneration, directly or indirectly, in cash or in kind, 
to induce or reward the purchasing, leasing, ordering or arranging for or recommending the 
purchase, lease or order of any health care items or service for which payment may be made, 
in whole or in part, by federal healthcare programs such as Medicare and Medicaid. This statute 
has been interpreted to apply to arrangements between pharmaceutical companies on one hand 
and prescribers, purchasers and formulary managers on the other. Further, the Affordable Care 
Act clarified  among  other  things  that  liability  may  be  established  under  the  federal  Anti-
Kickback Law without proving actual knowledge of the statute or specific intent to violate it. 
In  addition,  the  Affordable  Care  Act amended  the  Social  Security  Act  to  provide  that  the
government may assert that a claim including items or services resulting from a violation of 
the  federal  Anti-Kickback  Law  constitutes  a  false  or  fraudulent  claim  for  purposes  of  the 
federal  civil  False  Claims  Act.  Although  there  are  a  number  of  statutory exemptions  and 
regulatory safe harbors to the federal Anti-Kickback Law protecting certain common business 
arrangements and activities from prosecution or regulatory sanctions, the exemptions and safe 
harbors are drawn narrowly, and practices that do not fit squarely within an exemption or safe 
harbor, or for which no exception or safe harbor is available, may be subject to scrutiny;

(cid:120) The federal civil False Claims Act, which prohibits, among other things, individuals or entities 
from knowingly presenting, or causing to be presented, a false or fraudulent claim for payment 
of government funds or knowingly making, using or causing to be made or used, a false record 
or statement material to an obligation to pay money to the government or knowingly concealing 
or knowingly and improperly avoiding, decreasing or concealing an obligation to pay money 

14

 
to the federal government. Many pharmaceutical and other healthcare companies have been 
investigated  and  have  reached  substantial  financial  settlements  with  the  federal  government 
under  the  civil  False  Claims  Act  for  a  variety  of  alleged  improper  marketing  activities, 
including: providing free product to customers with the expectation that the customers would 
bill federal programs for the product; providing sham consulting fees, grants, free travel and 
other benefits to physicians to induce them to prescribe the company’s products; and inflating 
prices reported to private price publication services, which are used to set drug payment rates 
under government healthcare programs. In addition, in recent years the government has pursued 
civil False Claims Act cases against a number of pharmaceutical companies for causing false 
claims to be submitted as a result of the marketing of their products for unapproved, and thus 
non-reimbursable,  uses.  Pharmaceutical  and  other  healthcare  companies  also  are  subject  to 
other federal false claim laws, including, among others, federal criminal healthcare fraud and 
false statement statutes that extend to non-government health benefit programs;

(cid:120) Analogous state laws and regulations, such as state anti-kickback and false claims laws, may 
apply to items or services reimbursed under Medicaid and other state programs or, in several 
states, apply regardless of the payor. Some state laws also require pharmaceutical companies 
to report expenses relating to the marketing and promotion of pharmaceutical products and to 
report  gifts  and  payments  to  certain  healthcare  providers  in  the  states.  Other  states  prohibit 
providing  meals  to  prescribers  or  other  marketing  related  activities.  In  addition,  California, 
Connecticut,  Nevada  and  Massachusetts  require  pharmaceutical  companies  to  implement 
compliance programs or marketing codes of conduct. 

(cid:120) The  federal  Physician  Payment  Sunshine  Act,  being  implemented  as  the  Open  Payments 
Program,  requires  certain  pharmaceutical  manufacturers  to  engage  in  extensive  tracking  of 
payments and other transfers of value to physicians and teaching hospitals, and to submit such 
data to the Centers for Medicare and Medicaid Services (“CMS”), which will then make all of 
this data publicly available on the CMS website. Pharmaceutical manufacturers with products 
for  which  payment  is  available  under  Medicare,  Medicaid  or  the  State  Children’s  Health 
Insurance Program are required to track reportable payments and must submit a report to CMS 
on or before the 90th day of each calendar year disclosing reportable payments made in the 
previous calendar year.    Failure to comply with the reporting obligations may result in civil 
monetary penalties;

(cid:120) The federal Foreign Corrupt Practices Act of 1997 and other similar anti-bribery laws in other 
jurisdictions generally prohibit companies and their intermediaries from providing money or 
anything of value to officials of foreign governments, foreign political parties, or international 
organizations  with  the  intent  to  obtain  or  retain  business  or  seek  a  business  advantage.   
Recently, there has been a substantial increase in anti-bribery law enforcement activity by U.S. 
regulators, with more frequent and aggressive investigations and enforcement proceedings by 
both the Department of Justice and the U.S. Securities and Exchange Commission (the “SEC”).   
Violations  of  United  States  or  foreign  laws  or  regulations  could  result  in  the  imposition  of 
substantial  fines,  interruptions  of  business,  loss  of  supplier,  vendor  or  other  third-party 
relationships,  termination  of  necessary  licenses  and  permits  and  other  legal  or  equitable 
sanctions.  Other  internal  or  government  investigations  or  legal  or  regulatory  proceedings,
including lawsuits brought by private litigants, may also follow as a consequence.

Violations of any of the laws described above or any other governmental regulations are punishable by 
significant  civil,  criminal  and  administrative  penalties,  damages,  fines  and  exclusion  from  government-
funded  healthcare  programs,  such  as  Medicare  and  Medicaid.    Although  compliance  programs  can 
mitigate the risk of investigation and prosecution for violations of these laws, the risks cannot be entirely 
eliminated.    Moreover,  achieving  and  sustaining  compliance  with  applicable  federal  and  state  privacy, 
security and fraud laws may prove costly.

15

 
Privacy  Laws.    We  are  also  subject  to  laws  and  regulations  covering  data  privacy  and  the 
protection of health-related and other personal information. The legislative and regulatory landscape for 
privacy and data protection continues to evolve, and there has been an increasing focus on privacy and data 
protection issues which may affect our business, including recently enacted laws in all jurisdictions where 
we operate. Numerous federal and state laws, including state security breach notification laws, state health 
information privacy laws and federal and state consumer protection laws, govern the collection, use and 
disclosure  of  personal  information.  Failure  to  comply  with  such  laws  and  regulations  could  result  in 
government  enforcement  actions  and  create  liability  for  us  (including  the  imposition  of  significant 
penalties), private litigation and/or adverse publicity that could negatively affect our business.    In addition, 
if  we  successfully  commercialize  our  drug  candidates,  we  may  obtain  patient  health  information  from 
healthcare providers who prescribe our products and research institutions we collaborate with, and they are 
subject to privacy and security requirements under the Health Insurance Portability and Accountability Act 
of  1996,  as  amended  by  the  Health  Information  Technology  for  Economic  and  Clinical  Health  Act 
(“HIPAA”). Although we are not directly subject to HIPAA other than with respect to providing certain 
employee benefits, we could potentially be subject to criminal penalties if we knowingly obtain or disclose 
individually identifiable health information maintained by a HIPAA-covered entity in a manner that is not 
authorized or permitted by HIPAA.

Coverage and Reimbursement

Significant uncertainty exists as to the coverage and reimbursement status of any drug candidates 
for which we may obtain regulatory approval.    The regulations that govern marketing approvals, pricing 
and  reimbursement  for  new  drug  products  vary  widely  from  country  to  country.  Current  and  future 
legislation may significantly change the approval requirements in ways that could involve additional costs 
and cause delays in obtaining approvals. Some countries require approval of the sale price of a drug before 
it can be marketed. In many countries, the pricing review period begins after marketing or product licensing 
approval  is  granted.  In  some  foreign  markets,  prescription  pharmaceutical  pricing  remains  subject  to 
continuing  governmental  control  even  after  initial  approval  is  granted.  As  a  result,  we  might  obtain 
marketing approval for a product in a particular country, but then be subject to price regulations that delay 
our commercial launch of the product, possibly for lengthy time periods, which could negatively impact 
the revenues we are able to generate from the sale of the product in that particular country. Adverse pricing 
limitations may hinder our ability to recoup our investment in one or more product candidates even if our 
product candidates obtain marketing approval.

Our ability to commercialize any products successfully also will depend in part on the extent to 
which coverage and adequate reimbursement for these products and related treatments will be available in 
a timely manner from government third-party payors, including government healthcare programs such as 
Medicare  and  Medicaid,  commercial  health  insurers  and  managed  care  organizations.    Government 
authorities  and  other  third-party  payors,  such  as  private  health  insurers  and  health  maintenance 
organizations, determine which medications they will cover and establish reimbursement levels.    Third-
party payors may limit coverage to specific products on an approved list, or formulary, which may not 
include all of the FDA-approved products for a particular indication.    The process for determining whether 
a  payor  will  provide  coverage  for  a  product  may  be  separate  from  the  process  for  setting  the  price  or 
reimbursement rate that the payor will pay for the product once coverage is approved.   

A primary trend in the U.S. healthcare industry and elsewhere is cost containment.    Government 
healthcare  programs  and  other  third-party  payors  are  increasingly  challenging  the  prices  charged  for 
medical  products  and  services  and  examining  the  medical  necessity  and  cost-effectiveness  of  medical 
products  and  services,  in  addition  to  their  safety  and  efficacy,  and  have  attempted  to  control  costs  by 
limiting coverage and the amount of reimbursement for particular medications. Increasingly, third-party 

16

 
payors are requiring that drug companies provide them with predetermined discounts from list prices and 
are  challenging  the  prices  charged  for  medical  products.  We  cannot  be  sure  that  coverage  and 
reimbursement  will  be  available  promptly  or  at  all  for  any  product  that  we  commercialize  and,  if 
reimbursement is available, what the level of reimbursement will be. Moreover, eligibility for coverage and 
reimbursement does not imply that any drug will be paid for in all cases. Limited coverage may impact the 
demand for, or the price of, any product candidate for which we obtain marketing approval. If coverage and 
reimbursement  are  not  available  or  reimbursement  is  available  only  to  limited  levels,  we  may  not 
successfully commercialize any product candidate for which we obtain marketing approval. 

Payors also are increasingly considering new metrics as the basis for reimbursement rates, such as 
average sales price (“ASP”), average manufacturer price (“AMP”) and actual acquisition cost. The existing 
data for reimbursement based on these metrics is relatively limited, although certain states have begun to 
survey acquisition cost data for the purpose of setting Medicaid reimbursement rates.    CMS surveys and 
publishes retail community pharmacy acquisition cost information in the form of National Average Drug 
Acquisition Cost (“NADAC”) files to provide state Medicaid agencies with a basis of comparison for their 
own reimbursement and pricing methodologies and rates.    It may be difficult to project the impact of these 
evolving reimbursement mechanics on the willingness of payors to cover our products for which we receive 
regulatory approval.

If we successfully commercialize any of our products, we may participate in the Medicaid Drug 
Rebate Program.    Participation is required for federal funds to be available for our products under Medicaid 
and Medicare Part B.    Under the Medicaid Drug Rebate Program, we would be required to pay a rebate to 
each state Medicaid program for our covered outpatient drugs that are dispensed to Medicaid beneficiaries 
and paid for by a state Medicaid program as a condition of having federal funds being made available to 
the states for our drugs under Medicaid and Part B of the Medicare program.   

Federal law requires that any company that participates in the Medicaid Drug Rebate Program also 
participate  in  the  Public  Health  Service’s  340B  drug  pricing  program  in  order  for  federal  funds  to  be 
available  for  the  manufacturer’s  drugs  under  Medicaid  and  Medicare  Part  B.    The  340B  drug  pricing
program requires participating manufacturers to agree to charge statutorily-defined covered entities no more 
than  the  340B  “ceiling  price”  for  the  manufacturer’s  covered  outpatient  drugs.    These  340B  covered 
entities include a variety of community health clinics and other entities that receive health services grants 
from  the  Public  Health  Service,  as  well  as  hospitals  that  serve  a  disproportionate  share  of  low-income 
patients.   

In  addition,  in  order  to  be  eligible  to  have  its  products  paid  for  with  federal  funds  under  the 
Medicaid and Medicare Part B programs and purchased by the Department of Veterans Affairs (the “VA”), 
Department of Defense (“DoD”), Public Health Service, and Coast Guard (the “Big Four agencies”) and 
certain federal grantees, a manufacturer also must participate in the VA Federal Supply Schedule (“FSS”) 
pricing  program,  established  by  Section  603  of  the  Veterans  Health  Care  Act  of  1992  (the  “VHCA”).   
Under this program, the manufacturer is obligated to make its covered drugs (innovator multiple source 
drugs, single source drugs, and biologics) available for procurement on an FSS contract and charge a price 
to the Big Four agencies that is no higher than the Federal Ceiling Price (“FCP”), which is a price calculated 
pursuant to a statutory formula. The FCP is derived from a calculated price point called the “non-federal 
average manufacturer price” (“Non-FAMP”), which we will be required to calculate and report to the VA 
on  a  quarterly  and  annual  basis.    Moreover,  pursuant  to  Defense  Health Agency  (“DHA”)  regulations, 
manufacturers must provide rebates on utilization of their innovator and single source products that are 
dispensed  to  TRICARE  beneficiaries  by  TRICARE  network  retail  pharmacies.    The  formula  for 
determining the rebate is established in the regulations and is based on the difference between the annual 
non-federal average manufacturer price and the Federal Ceiling Price, each required to be calculated by us 
under  the  VHCA.  The  requirements  under  the  340B,  FSS,  and  TRICARE  programs could  reduce  the 

17

 
revenue  we  may  generate  from  any  products  that  are  commercialized  in  the  future  and  could  adversely 
affect our business and operating results.

There  may be  significant  delays  in  obtaining  coverage  and  reimbursement  for  newly  approved 
drugs, and coverage may be more limited than the purposes for which the drug is approved by the FDA or 
comparable foreign regulatory authorities. Moreover, eligibility for coverage and reimbursement does not 
imply  that  a  drug  will  be  paid  for  in  all  cases  or  at  a  rate  that  covers  our  costs,  including  research, 
development, manufacture, sale and distribution. Interim reimbursement levels for new drugs, if applicable, 
may also not be sufficient to cover our costs and may only be temporary. Reimbursement rates may vary 
according to the use of the drug and the clinical setting in which it is used, may be based on reimbursement 
levels already set for lower cost drugs and may be incorporated into existing payments for other services.   
Net prices for drugs may be reduced by mandatory discounts or rebates required by government healthcare 
programs or private payors and by any future relaxation of laws that presently restrict imports of drugs from 
countries where they may be sold at lower prices than in the United States. Limited coverage may impact 
the demand for, or the price of, any product candidate for which we obtain marketing approval.    Third-
party payors also may seek additional clinical evidence, including expensive pharmacoeconomic studies, 
beyond the data required to obtain marketing approval, demonstrating clinical benefits and value in specific 
patient populations, before covering our products for those patients.    If reimbursement is available only 
for limited indications, we may not be able to successfully commercialize any product candidate for which 
we obtain marketing approval.    Our inability to promptly obtain coverage and profitable reimbursement 
rates from both government-funded and private payors for any approved products that we develop could 
have a material adverse effect on our operating results, our ability to raise capital needed to commercialize 
products and our overall financial condition.

United States Healthcare Reform

The  United  States  and  many  foreign  jurisdictions  have  enacted  or  proposed  legislative  and 
regulatory changes affecting the healthcare system that could prevent or delay marketing approval of our 
product candidates, restrict or regulate post-approval activities and affect our ability to profitably sell any 
product candidate for which we obtain marketing approval. The United States government, state legislatures 
and foreign governments also have shown significant interest in implementing cost-containment programs 
to  limit  the  growth  of  government-paid  healthcare  costs,  including  price  controls,  restrictions  on 
reimbursement and requirements for substitution of generic products for branded prescription drugs.

In recent years, Congress has considered reductions in Medicare reimbursement levels for drugs 
administered by physicians. CMS, the agency that administers the Medicare and Medicaid programs, also 
has authority to revise reimbursement rates and to implement coverage restrictions for some drugs. Cost 
reduction initiatives and changes in coverage implemented through legislation or regulation could decrease 
utilization of and reimbursement for any approved products, which in turn would affect the price we can 
receive  for  those  products.  While  Medicare  regulations  apply  only  to  drug  benefits  for  Medicare 
beneficiaries, private payors often follow Medicare coverage policy and payment limitations in setting their 
own reimbursement rates. Therefore, any reduction in reimbursement that results from federal legislation 
or regulation may result in a similar reduction in payments from private payors.

In March 2010, President Obama signed into law the Affordable Care Act.    This law substantially 
changes the way healthcare is financed by both governmental and private insurers, and significantly impacts 
the pharmaceutical industry.    The Affordable Care Act is intended to broaden access to health insurance, 
reduce  or  constrain  the  growth  of  healthcare  spending,  enhance  remedies  against  healthcare  fraud  and 
abuse, add new transparency requirements for healthcare and health insurance industries, impose new taxes 
and fees on pharmaceutical and medical device manufacturers, and impose additional health policy reforms. 
Among other things, the Affordable Care Act expanded manufacturers’ rebate liability under the Medicaid 

18

 
Drug Rebate Program by increasing the minimum Medicaid rebate for both branded and generic drugs, 
expanded  the  340B  program,  and  revised  the  definition  of  AMP,  which  could  increase  the  amount  of 
Medicaid drug rebates manufacturers are required to pay to states. The legislation also extended Medicaid 
drug  rebates,  previously  due  only  on  fee-for-service  Medicaid  utilization,  to  include  the  utilization  of 
Medicaid  managed  care  organizations  as  well  and  created  an  alternative  rebate  formula  for  certain  new 
formulations of certain existing products that is intended to increase the amount of rebates due on those 
drugs.    On February 1, 2016, CMS issued final regulations to implement the changes to the Medicaid Drug 
Rebate program under the Affordable Care Act.    These regulations became effective on April 1, 2016.   

Moreover,  certain  legislative  changes  to  and  regulatory  changes  under  the  Affordable  Care  Act 
have occurred in the 115th United States Congress and under the Trump Administration. For example, the 
Tax Cuts and Jobs Act, enacted on December 22, 2017, eliminated the shared responsibility payment for 
individuals who fail to maintain minimum essential coverage under section 5000A of the Internal Revenue 
Code of 1986, commonly referred to as the individual mandate, beginning in 2019. Additional legislative 
changes to and regulatory changes under the Affordable Care Act remain possible. Any such changes could 
decrease  the  number  of  individuals  with  health  coverage.  We  expect  that  the  Affordable  Care  Act,  as 
currently enacted or as it may be amended in the future, and other healthcare reform measures that may be 
adopted in the future could have a material adverse effect on our industry generally and on our ability to 
successfully commercialize our product candidates, if approved.

The Affordable Care Act requires pharmaceutical manufacturers of branded prescription drugs to 
pay  a  branded  prescription  drug  fee  to  the  federal  government.    Each  individual  pharmaceutical 
manufacturer pays a prorated share of the branded prescription drug fee of $4.1 billion in 2018 and $2.8 
billion in years thereafter, based on the dollar value of its branded prescription drug sales to certain federal 
programs identified in the law.    Furthermore, the Affordable Care Act requires manufacturers to provide a 
50%  discount  off  the  negotiated  price  of  prescriptions filled  by  beneficiaries  in  the  Medicare  Part  D 
coverage gap, referred to as the “donut hole.” The Bipartisan Budget Act of 2018 increased the required 
manufacturer discount to 70% off the negotiated price for Medicare Part D beneficiaries in the donut hole
beginning in 2019. 

The Affordable Care Act also expanded the Public Health Service’s 340B drug pricing discount 
program.    As noted above, the 340B drug pricing program requires participating manufacturers to agree to 
charge statutorily-defined covered entities no more than the 340B “ceiling price” for the manufacturer’s 
covered  outpatient  drugs.    The  Affordable  Care  Act  expanded  the  340B  program  to  include  additional 
types  of  covered  entities:  certain  free-standing  cancer  hospitals,  critical  access  hospitals,  rural  referral 
centers and sole community hospitals, each as defined by the Affordable Care Act. The Affordable Care 
Act exempts “orphan drugs”—those designated under section 526 of the Food, Drug, and Cosmetic Act—
from the ceiling price requirements for these newly-eligible entities.    Because the 340B ceiling price is 
determined based on AMP and Medicaid drug rebate data, the revisions to the Medicaid rebate formula and 
AMP definition could cause the required 340B discounts to increase.

In addition, other legislative changes have been proposed and adopted since the Affordable Care 
Act was enacted.    For example, recent legislative enactments have resulted in Medicare payments being 
subject to a two percent reduction, referred to as sequestration, until 2027. Continuation of sequestration or 
enactment of other reductions in Medicare reimbursement for drugs could affect our ability to achieve a 
profit on any candidate products that are approved for marketing.

We expect that the Affordable Care Act, 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 receive for any approved product 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 

19

 
measures  or  other  healthcare  reforms  may  prevent  us  from  being  able  to  generate  revenue,  attain 
profitability or commercialize our products.

Foreign Regulation

In  addition  to  regulations  in  the  United  States,  we  will  be  subject  to  a  number  of  significant 
regulations  in  other  jurisdictions  regarding  clinical  trials,  approval,  manufacturing,  marketing  and 
promotion and safety reporting.    These requirements and restrictions vary from country to country, but in 
many instances are similar to the United States requirements, and failure to comply with them could have 
the same negative effects as noncompliance in the United States.

Sales and Marketing

We do not currently have the sales and marketing infrastructure in place that would be necessary 
to sell and market products. As our drug candidates progress in clinical trials, we may build the commercial 
infrastructure that would be needed to successfully market and sell any successful drug candidate. For drug 
candidates that may require larger clinical trials or sales efforts, we intend to establish strategic alliances 
and partnerships with large pharmaceutical companies during the development process.

Research Technologies

Our research technologies are focused on our proprietary multi-target aimed ligands platform and 
nano-based  drug  delivery.    For  example,  we  have developed unique  proprietary  drug delivery  nano-
systems  that  we  believe  may  increase  the  availability  of  a  drug  at  the  disease  site,  minimize  adverse 
reactions,  and  provide  longer  duration  of  action.  We  are  currently  testing  multiple  nanoliposomal- and 
nanopolymer-based anti-cancer drugs.

In some circumstances, we partner with universities, research institutions and other organizations
to obtain research and development services.    For a discussion of collaboration arrangements pursuant to 
which we obtain research and development services, see “Collaboration and License Agreements” below 
in this Item 1.

Manufacturing and Distribution

We  have  no  experience  in  drug  formulation  or  manufacturing,  and  we  lack  the  resources  and 
expertise to formulate or manufacture our own drug candidates internally. Therefore, we rely on third-party 
expertise  to  support  us  in  this  area.  We  have  entered  into  contracts  with  third-party  manufacturers  to 
manufacture, supply, store and distribute supplies of our drug candidates for our clinical trials. If any of our 
drug  candidates  receive  FDA  approval,  we  expect  to  rely on  third-party  contractors  to  manufacture  our 
drugs. We have no current plans to build internal manufacturing capacity for any product, and we have no 
long-term supply arrangements.

20

 
Intellectual Property 

We  generally  seek  proprietary  patent  and  intellectual  property  (“IP”)  protection  for  our  drug 
candidates, processes, and other know-how. In addition to patent protection, we rely upon trade secrets, 
know-how, continuing technological innovation and licensing opportunities to develop and safeguard and 
maintain our IP.

We hold U.S. and foreign patents for our drug candidates that expire from 2023 to 2036. We hold 
U.S., European and Japanese patents for RX-3117, RX-5902 and RX-0201.    In addition to these patents, 
we have issued or pending patents in other jurisdictions. 

The patent portfolios for our most advanced programs are summarized below:

RX-3117:

The RX-3117 patent portfolio consists of three patent families.    The first family consists of 
patents  that  have  been  issued  in  the  United  States,  Europe,  Japan  and  other  jurisdictions.  The 
patents  in  this  family  include  composition  of  matter,  use,  and  process  claims  of  varying  scope, 
including picture claims to RX-3117 or a pharmaceutically acceptable salt thereof. The patents in 
this first family expire in 2025 but may be extended by patent term extension and orphan and market 
exclusivity. The second family consists of patents that have been issued in the United States, and 
are pending in Europe, Japan and other jurisdictions.  The patents in the second family include 
process claims that cover RX-3117.    The patents in this second family expire in 2034.    The third 
family consists of a patent that is issued in the United States and pending in other jurisdictions. 
This patent includes use claims that cover the administration of RX-3117.    This patent expires in 
2036.

RX-5902 (Supinoxin):

The  RX-5902 patent  portfolio  consists  of  three  patent  families.  The  first  family  consists  of 
patents that have been issued in the United States and Europe and are pending in Japan and other 
jurisdictions. The patents in the first family include composition of matter, use, and process claims 
of  varying  scope,  including  picture  claims  to  RX-5902 or  a  pharmaceutically  acceptable  salt 
thereof. The patents in this first family expire in 2025 and may be extended up to five years in the 
United States.    We also expect RX-5902 will be protected with market exclusivity in Europe for 
a minimum of ten years post-approval and in Japan for eight years. The second family consists of 
patents that are issued in the United States and Japan and pending in Europe and other jurisdictions. 
The patents in the second family include composition of matter and process claims that cover RX-
5902.    The  patents  in  this  second  family  would expire  in  2034.  The  third  family  consists  of  a 
patent  that  is  issued  in  the  United  States  and  pending  elsewhere.  The  patent  in  the  third  family 
includes use claims that cover RX-5902.    This patent will expire in 2036.   

RX-0201 (Archexin):

The RX-0201 patent portfolio consists of a patent family that includes patents that have been 
issued  in  the  United  States,  Europe,  Japan  and  other  jurisdictions.    The  patents  in  this  family 
include composition of matter and use claims of varying scope, including picture claims to RX-
0201 or a pharmaceutically acceptable salt thereof. The expiration date of these patents ranges from 
2023 to 2025, and may be extended by up to five years in certain countries including the United 
States.    In addition, it is expected that RX-0201 will be protected from generic launches by market 
and orphan designations for up to seven years in the United States, and ten years in Europe and 
Japan.

21

 
Collaboration and License Arrangements

We  have  numerous  collaborative  research  and  development  relationships  with  universities, 

research institutions pharmaceutical companies and other organizations.

Zhejiang Haichang Biotechnology Co., Ltd.

In  February  2018,  we  entered  into  a  research  and  development  collaboration  agreement  with 
Haichang,  a  privately  owned  specialized  biotechnology  company  incorporated  in  Hangzhou,  China  and 
focused on the development and manufacture of complex intravenous pharmaceutical products primarily 
for cancer treatment.    Under the agreement, Haichang will develop a nano-liposomal formulation of RX-
0201  using  its  proprietary  QTzomes™  technology  and  will  conduct  certain  pre-clinical  and  clinical 
activities through completion of a Phase 2a proof-of-concept clinical trial in HCC in China.    Haichang 
will fund all development activities through completion of the Phase 2a clinical trial up to an aggregate 
amount of $10,000,000 and the parties will share downstream licensing fees and royalties paid by third 
parties in an agreed ratio in connection with the further development and commercialization of RX-0201 
for the treatment of HCC.    If Haichang exercises its right of first negotiation after completion of the Phase 
2a clinical trial to obtain an exclusive license to further develop and commercialize RX-0201 in China, 
Haichang will pay customary license fees, milestone payments and royalties to Rexahn.    Any clinical trials 
conducted  by  Haichang  will  be  designed  to  meet  both  FDA  and  China  Food  and  Drug  Administration 
requirements.

Rexgene Biotech Co., Ltd. (“Rexgene”) and Next-BT Co. Ltd. (“Next-BT”)

In February 2003, we entered into a research collaboration agreement with Rexgene, which agreed 
to assist us with the research, development and clinical trials necessary for registration of RX-0201 in Asia.   
Under the agreement, we granted Rexgene an exclusive license, with right to sublicense, to make, have 
made, use, sell and import RX-0201 in Asia. 
In accordance with the agreement, Rexgene paid us a one-
time fee of $1,500,000 in 2003.

On February 5, 2018, we entered into a royalty and release agreement with Next-BT, the successor 
in interest to Rexgene.    In exchange for Next-BT terminating its rights to RX-0201 in Asia, we agreed to 
pay Next-BT a royalty in the low single digits of any net sales of RX-0201 we make in Asia and 50% of 
our licensing  revenue  related  to  licensing  of  RX-0201  in  Asia,  up  to  an  aggregate  of  $5,000,000.  The 
agreement  will  terminate  upon  the  earlier  of  Next-BT’s  receipt  of  $5,000,000  under  the  agreement, 
February 5, 2025 if Next-BT has received at least $3,000,000 under the agreement by that date, and the date 
after February 5, 2025 that Next-BT has received cumulative payments of $3,000,000 under the agreement.

Korea Research Institute of Chemical Technology (“KRICT”)

In June 2009, we entered into a license agreement with KRICT to acquire rights to all of KRICT’s 
intellectual property related to quinoxaline-piperazine derivatives, which includes RX-5902.    We paid an 
initial license fee of $100,000 in July 2009, and will pay a one-time milestone payment of $1,000,000 to 
KRICT upon marketing approval from FDA for the first commercial product stemming from intellectual 
property (the “Milestone Payment”).    Upon payment of the Milestone Payment all of the rights previously 
licensed to us will be transferred to us and the agreement will terminate.    The agreement is terminable by 
either party for the other party’s material breach, subject to a 60-day cure period. To date, we have paid 
only the $100,000 initial license fee pursuant to this agreement.

22

 
The University of Maryland Baltimore (“UMB”)

In July 2013, we entered into an exclusive license agreement with UMB for a novel drug delivery 
platform,  Nano-Polymer-Drug  Conjugate  Systems.    This  platform  combines  existing  chemotherapeutic 
agents with a proprietary polymer carrier that contains a signaling moiety to direct the agents into a tumor.   
This agreement requires us to make payments to UMB if any other products developed from the licensed 
delivery platform achieve development milestones.   

The Ohio State University

In October 2013, we entered into an exclusive license agreement with the Ohio State Innovation 
Foundation, an affiliate of The Ohio State University, for a novel oligonucleotide drug delivery platform, 
Lipid-Coated Albumin Nanoparticle (“LCAN”).    The LCAN platform incorporates both cationic lipid and 
cationized albumin that can form an electrostatic complex with oligonucleotides and be co-encapsulated by 
lipids.    The  agreement  requires  us  to  make  payments  to  the  Ohio  State  Innovation  Foundation  if  any 
products from the licensed delivery platform achieve development milestones.   

Total Research and Development Costs

We have incurred research and development costs of $10,715,296, $10,089,149, and $12,148,226 
for the years ended December 31, 2017, 2016 and 2015, respectively.    Research and development costs 
primarily consist of clinical trials and pre-clinical development costs, as well as payroll costs for research 
and development personnel. 

Employees

We currently have 17 full-time employees, all of whom are based either at our Rockville, Maryland 
office  or  our  Gaithersburg,  Maryland  lab  facility.    Our  employees  are  not  covered  by  any  collective 
bargaining agreement and we have never experienced a work stoppage.    We believe our relationships with 
our employees are satisfactory.

Available Information 

Under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), we are required to 
file  annual,  quarterly  and  current  reports,  proxy  statements  and  other  information  with  the  SEC.    Any 
document we file with the SEC may be read and copied at the SEC’s Public Reference Room at 100 F 
Street, N.E., Washington, D.C. 20549. Please call the SEC at (800) SEC-0330 for further information about 
the public reference room. The SEC maintains a website at www.sec.gov that contains reports, proxy and 
information statements and other information regarding issuers that file electronically with the SEC. 

We make available, free of charge, on our website at www.rexahn.com our Annual Report on Form 
10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K and all amendments thereto, as 
soon as reasonably practicable after they are filed with or furnished to the SEC. Investors are encouraged 
to access these reports and the other information about our business on our website. Information found on 
our website is not part of this Annual Report on Form 10-K (this “Annual Report”). We will also provide 
copies of this Annual Report, free of charge, upon written request to the Investor Relations Department at 
our main address, 15245 Shady Grove Road, Suite 455, Rockville MD, 20850.

Also posted on our website, and available in print upon written request of any shareholder to our 

Investor Relations Department, are the charters of the standing committees of our Board.

23

 
Item 1A.    Risk Factors.

You should carefully consider the risks described below together with the other information included in this 
Form 10-K. Our business, financial condition or results of operations could be adversely affected by any 
of these risks. If any of these risks occur, the value of our common stock could decline.

Risks Related to Our Financial Position and Capital Needs

We  currently  have  no  product  revenues,  have  incurred  negative  cash  flows  from  operations  since 
inception and will need to raise additional capital to operate our business.

To  date,  we  have  generated  no  product  revenues  and  have  incurred  negative  cash  flow  from 
operations. Until we receive approval from the FDA or other regulatory authorities for our drug candidates, 
we cannot sell our drugs and will not have product revenues. We expect to continue to incur significant 
development and other expenses related to our ongoing operations.    Therefore, for the foreseeable future, 
we will have to fund all of our operations and capital expenditures from the net proceeds of equity or debt 
offerings, cash on hand, licensing fees and grants, if any.    If we are not able to raise sufficient funds, we 
will have to reduce our research and development activities. We will first reduce research and development 
activities  associated  with  our  pre-clinical  compounds.  To  the  extent  necessary,  we  will  then  reduce  our 
research and development activities related to some or all of our clinical stage product candidates. 

Unforeseen events, difficulties, complications and delays may occur that could cause us to utilize 
our existing capital at a faster rate than projected, including the progress of our research and development 
efforts, the cost and timing of regulatory approvals and the costs of protecting our intellectual property 
rights. We may seek additional financing to implement and fund other drug candidate development, clinical 
trial and research and development efforts, including clinical trials for other new drug candidates, as well 
as other research and development projects.

We will need additional financing to continue to develop our drug candidates, which may not be 
available  on  favorable  terms,  if  at  all.  If  we  are  unable  to  secure  additional  financing  in  the  future  on 
acceptable terms, or at all, we may be unable to complete our planned pre-clinical and clinical trials or 
obtain approval of our drug candidates from the FDA and other regulatory authorities. In addition, we may 
be forced to reduce or discontinue product development or product licensing, reduce or forego sales and 
marketing efforts and forego attractive business opportunities in order to improve our liquidity to enable us 
to  continue  operations.  Any  additional  sources  of  financing  will  likely  involve  the  sale  of  our  equity 
securities  or  securities  convertible  into  our  equity  securities,  which  may  have  a  dilutive  effect  on  our 
stockholders.

We are not currently profitable and may never become profitable.

To  date,  we  have  generated  no  product  revenues  and  have  incurred  negative  cash  flow  from 
operations.  Our  accumulated deficit  as  of  December  31,  2017 and  2016 was $140,318,712 and
$115,024,209, respectively. For the years ended December 31, 2017, 2016 and 2015, we had net losses of 
$25,294,503,  $9,307,345, and  $14,384,556, respectively.  Even  if  we  succeed  in  developing  and 
commercializing  one  or  more  of  our  drug  candidates,  we  expect  to  incur  substantial  losses  for  the 
foreseeable  future  and  may  never  become  profitable.  We  also  expect  to  continue  to  incur  significant 
operating  and  capital  expenditures  and  anticipate  that  our  expenses  will  increase  substantially  in  the 
foreseeable future, based on the following considerations:

(cid:120)

continued pre-clinical development and clinical trials for our current and new drug candidates;

24

 
(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

finding and maintaining suitable partnerships to help us research, develop and commercialize drug 
candidates;

efforts to seek regulatory approvals for our drug candidates;

implementing additional internal systems and infrastructure;

in-licensing additional technologies to develop; and

hiring additional personnel or entering into relationships with third parties to perform functions that 
we are unable to perform on our own.

We also expect to continue to experience negative cash flow for the foreseeable future as we fund 
our operations and capital expenditures. Until we have the capacity to generate revenues, we are relying 
upon  outside  funding  resources  to  fund  our  cash  flow  requirements.  If  these  resources  are  depleted  or 
unavailable, we may be unable to continue to expand our operations or otherwise capitalize on our business 
opportunities, and our business, financial condition and results of operations would be materially adversely 
affected.

We have a limited operating history, and we have not demonstrated an ability to commercialize drug 
candidates.

We are a clinical-stage company with a limited number of drug candidates. We currently do not 
have any products that have gained regulatory approval, and we have not demonstrated an ability to perform 
the functions necessary for the successful commercialization of any of our drug candidates. The successful 
commercialization of our drug candidates will require us to first perform a variety of functions, including:

(cid:120)

(cid:120)

(cid:120)

(cid:120)

conducting pre-clinical and clinical trials;

participating in regulatory approval processes;

formulating and manufacturing products; and

conducting sales and marketing activities.

To  date,  our  operations  have  been  limited  to  organizing  and  staffing  the  Company,  acquiring, 
developing  and  securing  our  proprietary  technology,  and  undertaking  drug  candidate  research  and 
development,  including  pre-clinical  trials  and  clinical  trials  of  our  principal  drug  candidates.  These 
operations provide a limited basis for assessing our ability to commercialize drug candidates.

If we fail to comply with the continued listing standards of NYSE American, our common stock could be 
delisted. If it is delisted, our common stock and the liquidity of our common stock would be impacted.

Our common stock is listed on NYSE American, and the continued listing of our common stock 

on NYSE American is subject to our compliance with a number of listing standards. For example, Section 
1003(f)(v) of the NYSE American Company Guide provides that a company’s common stock may be 
delisted from NYSE American if it sells for a substantial period of time at a low price per share and the 
company fails to effect a reverse stock split or otherwise demonstrate sustained price improvement within 
a reasonable time after being notified that NYSE American deems such action to be appropriate under all 

25

 
the circumstances. Our common stock has previously traded at prices at which we expected that NYSE 
American could have delivered such a notice if the price did not increase. While our stock price thereafter 
increased, and while on May 5, 2017, we effected a one-for-ten reverse stock split of the outstanding 
shares of our common stock, there is no assurance that the market price of our common stock will remain 
at the level required to remain in compliance with NYSE American listing standards or that we will 
otherwise remain in compliance with NYSE American listing standards. Among other things, the NYSE 
American listing standards also have applicable provisions related to stockholders’ equity, disposal of 
assets and reduction of operations, and compliance with SEC and NYSE American regulations.

Delisting from  NYSE American would  adversely  affect our ability  to  raise additional financing 
through the public or private sale of equity securities, significantly affect the ability of investors to trade 
our securities and negatively affect the value and liquidity of our common stock.    Delisting also could 
have other negative results, including the potential loss of employee confidence, the loss of institutional 
investors or interest in business development opportunities.    Moreover, we committed in connection with 
the sale of securities to use commercially reasonably efforts to maintain the listing of our common stock 
during such time that certain warrants are outstanding.

Risks Related to Our Business

Several  of  our  drug  candidates  are  in  clinical  trials,  which  are  very  expensive,  time-consuming  and 
difficult to design and implement.

Our drug candidates are in various stages of development and require extensive clinical testing. 
Such testing is expensive and time-consuming and requires specialized knowledge and expertise. RX-
3117 entered a Phase 2a clinical trials in March 2016, September 2016, and November 2017 and RX-5902
entered a Phase 2a clinical trial in February 2017.

Human clinical trials are expensive and difficult to design and implement, in part because they are 
subject  to  rigorous  regulatory  requirements.  The  clinical  trial  process  is  also  time-consuming,  and  the 
outcome is not certain; the results of pre-clinical studies and early clinical trials may not be predictive of 
the results of later-stage clinical trials. We estimate that clinical trials of our current drug candidates will 
take multiple years to complete. Furthermore, failure can occur at any stage of a clinical trial, and we could 
encounter problems that cause us to abandon or repeat clinical trials. The commencement and completion 
of clinical trials may be delayed or precluded by a number of factors, including:

(cid:120)

(cid:120)

(cid:120)

delay or failure in reaching agreement with the FDA or a foreign regulatory authority on the design 
of a given trial, or in obtaining authorization to commence a trial;

delay or failure in reaching agreement on acceptable terms with prospective CROs and clinical trial 
sites;

delay or failure in obtaining approval of an IRB to conduct a clinical trial at a given site;

(cid:120) 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;

(cid:120)

(cid:120)

delay or failure in recruiting and enrolling study subjects;

delay or failure in having subjects complete a clinical trial or return for post-treatment follow up;

26

 
(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

clinical sites or investigators deviating from trial protocol, failing to conduct the trial in accordance 
with applicable regulatory requirements, or dropping out of a trial;

inability to identify and maintain a sufficient number of trial sites;

failure of third-party clinical trial managers to meet their contractual obligations or deadlines;

the need to modify a study protocol;

unforeseen safety issues;

emergence of dosing issues;

lack of effectiveness during clinical trials;

change in the standard of care of the indication being studied;

reliance on third-party suppliers for the clinical trial supply of drug candidates;

inability to monitor patients adequately during or after treatment;

lack of sufficient funding to finance the clinical trials; and

changes in governmental regulations or administrative action.

We, the FDA or an IRB may suspend a clinical trial at any time if it appears that we are exposing 
participants to unacceptable health risks or if the FDA finds deficiencies in our IND applications or the 
conduct of these trials. Additionally, we may have difficulty enrolling patients in our clinical trials.    If we 
experience such difficulties, we may not be able to complete a clinical trial or we may experience significant 
delays in completing a clinical trial.

If  the  results  of  our  clinical  trials  fail  to  support  the  approval of  any  of  our  drug  candidates,  the 
completion  of  development  of  that  candidate  may  be  significantly  delayed,  or  we  may  be  forced  to 
abandon  development  altogether,  which  will  significantly  impair  our  ability  to  generate  product 
revenues.

Even if our clinical trials are completed as planned, we cannot be certain that clinical results will 
support approval of our drug candidates. Success in pre-clinical testing and early clinical trials does not 
ensure that later clinical trials will be successful, and we cannot be sure that the results of later clinical trials 
will replicate the results of prior clinical trials and pre-clinical testing. The clinical trial process may fail to 
demonstrate that one or more of our drug candidates are safe and effective for indicated uses. As a result, 
we may have to conduct additional clinical trials or may decide to abandon a drug candidate, in which case 
we may never recognize any revenue related to such candidate. Standard of care treatments may change, 
which may require additional clinical trials. Repeating clinical trials or conducting additional clinical trials 
will increase our development costs and delay the filing of an NDA and, ultimately, delay our ability to 
commercialize our drug candidates and generate product revenues. 

We  may  not  obtain  the  necessary  U.S.  or  worldwide  regulatory  approvals  to  commercialize  our  drug 
candidates,  and  we  cannot  guarantee  how  long  it  will  take  the  FDA  or  other  comparable regulatory 
agencies to review applications for our drug candidates.

27

 
We  will  need  FDA  approval  to  commercialize  our  drug  candidates  in  the  United  States  and 
approvals  from  the  comparable regulatory  authorities  to  commercialize  our  drug  candidates  in  foreign
jurisdictions.

The  time  it  takes  to  obtain  approval,  either  in  the  United  States  or  foreign  jurisdictions,  is 
unpredictable,  but  typically  takes  many  years,  depending upon  a  variety  of  factors,  including  the  type, 
complexity  and  novelty  of  the  drug  candidate. Obtaining  approval  requires  substantial  resources  and  is 
subject to regulatory authorities’ substantial discretion.    In addition, approval policies, regulations or the 
type and amount of clinical data necessary to gain approval may change during the course of a product 
candidate’s  development  and  may  vary  among  jurisdictions.  We  cannot  guarantee  that  any  of  our  drug 
candidates will ultimately be approved by the FDA or any other regulatory authority, or the length of time 
obtaining approval will take. One of our drug candidates, RX-0201, is an ASO compound. To date, the 
FDA has approved relatively few ASO compounds.
In addition, RX-0201 is in the drug class known as
Akt-1 inhibitors that to date have not been approved by the FDA, and we have not submitted an NDA for 
any Akt-1 inhibitor.

Our product candidates could fail to receive regulatory approval from the FDA or a comparable 

foreign authority for a variety of reasons, including:

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

disagreement with the design or implementation of our clinical trials;

failure to demonstrate to the authority’s satisfaction that the product 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’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 foreign authority 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.

Even  if  our  product  candidates  obtain  approval,  they  may  face  future  development  and  regulatory 
difficulties that can negatively affect commercial prospects.

Even  if  we  obtain  approval  for  a  product  candidate,  it  would  be  subject  to  ongoing  regulatory 
requirements and restrictions of the FDA and comparable regulatory authorities regarding manufacturing, 
quality control, further development, labeling, packaging, storage, distribution, safety surveillance, import, 
export, advertising, promotion, recordkeeping and reporting.    Failure by us or any of the third parties on 
which we rely to meet those requirements can lead to enforcement action, among other consequences, that 
could  significantly  impair  our  ability  to  successfully  commercialize  a  given  product.    If  the  FDA  or  a 
comparable  regulatory  authority  becomes  aware  of  new  safety  information,  it  can  impose  additional 

28

 
restrictions on how the product is marketed or may seek to withdraw marketing approval altogether.

There is no assurance that any of our product candidates that has received or will receive orphan drug 
designation will subsequently obtain orphan drug exclusivity, or that any such exclusivity will provide 
the desired benefit.

Although we have obtained orphan drug designation for several uses of RX-0201 and one use of 
RX-3117  and  in  the  future  may  obtain  additional  orphan  drug  designation  for  these or  other  product 
candidates, we are not assured of being awarded orphan drug exclusivity or realizing the benefits of such 
exclusivity, even if any of these products is approved for its orphan-designated use.    If another company 
also holding orphan drug designation for a product containing the same active moiety intended for the same 
rare disease or condition receives approval before our orphan-designated product, approval of our product 
could  be  precluded  for  seven  years because  of  that  product’s  orphan  drug  exclusivity,  unless  we  could 
demonstrate our product to be clinically superior to the earlier-approved product.    Similarly, even if our 
orphan designated drug were approved first and awarded seven-year orphan drug exclusivity, it would not 
block approval of the other product if that product were shown to be clinically superior, or if we fail to 
assure a sufficient quantity of our orphan drug.    Additionally, because orphan drug exclusivity is product-
and indication-specific, it does not prevent approval of another drug for the same orphan indication or the 
same drug for a different use.   

If physicians and patients do not accept and use our drugs, our ability to generate revenue from sales of 
our products will be materially impaired.

Even if the FDA approves our drug candidates, physicians and patients may not accept and use 
them. Future acceptance and use of our products will depend upon a number of factors including, but not 
limited to:

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(cid:120)

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(cid:120)

(cid:120)

(cid:120)

awareness of a drug’s availability and benefits;

perceptions by members of the health care community, including physicians, about the safety and 
effectiveness of our drugs;

pharmacological benefit and cost-effectiveness of our products relative to competing products;

availability of reimbursement for our products from government or other third-party payors;

effectiveness of marketing and distribution efforts by us and our licensees and distributors, if any; 
and

the price at which we sell our products.

Because we expect sales of our current drug candidates, if approved, to generate substantially all 
of our product revenues for the foreseeable future, the failure of any of these drugs to find market acceptance 
would harm our business and could require us to seek additional financing.

Even if we are able to commercialize any of our product candidates, these products may become 
subject to unfavorable pricing regulations, third-party reimbursement practices or healthcare reform 
initiatives, which could harm our business.

29

 
The regulations that govern marketing approvals, pricing and reimbursement for new drug products 
vary widely from country to country. Current and future legislation may significantly change the approval 
requirements in ways that could involve additional costs and cause delays in obtaining approvals. Some 
countries require approval of the sale price of a drug before it can be marketed. In many countries,  the 
pricing  review  period  begins  after  marketing  or  product  licensing  approval  is  granted.  In  some  foreign 
markets, prescription pharmaceutical pricing remains subject to continuing governmental control even after 
initial approval is granted. As a result, we might obtain marketing approval for a product in a particular 
country, but then be subject to price regulations that delay our commercial launch of the product, possibly 
for lengthy time periods, which could negatively impact the revenues we are able to generate from the sale 
of the product in that particular country. Adverse pricing limitations may hinder our ability to recoup our 
investment in one or more product candidates even if our product candidates obtain marketing approval.

Our ability to commercialize any products successfully also will depend in part on the extent to 
which coverage and adequate reimbursement for these products and related treatments will be available in 
a timely manner from government third-party payors, including governmental healthcare programs such as 
Medicare  and  Medicaid,  commercial  health  insurers  and  managed  care  organizations.  Government 
authorities  and  other  third-party  payors,  such  as  private  health  insurers  and  health  maintenance 
organizations,  determine  which  medications  they  will  cover  and  establish  reimbursement  levels.  Third-
party payors may limit coverage to specific products on an approved list, or formulary, which may not 
include all of the FDA-approved products for a particular indication.    The process for determining whether 
a  payor  will  provide  coverage  for  a  product  may  be  separate  from  the  process  for  setting  the  price  or 
reimbursement rate that the payor will pay for the product once coverage is approved.

A primary trend in the U.S. healthcare industry and elsewhere is cost containment.    Government 
healthcare  programs  and  other  third-party  payors  are  increasingly  challenging  the  prices  charged  for 
medical  products  and  services  and  examining  the  medical  necessity  and  cost-effectiveness  of  medical 
products  and  services,  in  addition  to  their  safety  and  efficacy,  and  have  attempted  to  control  costs  by 
limiting coverage and the amount of reimbursement for particular medications. Increasingly, third-party 
payors are requiring that drug companies provide them with predetermined discounts from list prices and 
are  challenging  the  prices  charged  for  medical  products.  We  cannot  be  sure  that  coverage  and 
reimbursement  will  be  available  promptly  or  at  all  for  any  product  that  we  commercialize  and,  if 
reimbursement is available, what the level of reimbursement will be. Moreover, eligibility for coverage and 
reimbursement does not imply that any drug will be paid for in all cases. Limited coverage may impact the 
demand for, or the price of, any product candidate for which we obtain marketing approval. If coverage and 
reimbursement  are  not  available  or  reimbursement  is  available  only  to  limited  levels,  we  may  not 
successfully commercialize any product candidate for which we obtain marketing approval. 

Payors also are increasingly considering new metrics as the basis for reimbursement rates, such as 
ASP,  AMP  and  actual  acquisition  cost.    The  existing data  for  reimbursement  based  on these  metrics  is 
relatively  limited,  although  certain  states  have  begun  to  survey  acquisition  cost  data  for  the  purpose  of 
setting  Medicaid  reimbursement  rates.    CMS  surveys  and  publishes  retail  community  pharmacy 
acquisition cost information in the form of NADAC files to provide state Medicaid agencies with a basis 
of comparison for their own reimbursement and pricing methodologies and rates.    It may be difficult to 
project the impact of these evolving reimbursement mechanics on the willingness of payors to cover our 
products for which we receive regulatory approval.

If we successfully commercialize any of our products, we may participate in the Medicaid Drug 
Rebate program.    Participation is required for federal funds to be available for our products under Medicaid 
and Medicare Part B.  Under the Medicaid Drug Rebate Program, we would be required to pay a rebate to 
each state Medicaid program for our covered outpatient drugs that are dispensed to Medicaid beneficiaries 
and paid for by a state Medicaid program as a condition of having federal funds being made available to 
the states for our drugs under Medicaid and Part B of the Medicare program.   

30

 
Federal law requires that any company that participates in the Medicaid Drug Rebate Program also 
participate  in  the  Public  Health  Service’s  340B  drug  pricing  program  in  order  for  federal  funds  to  be 
available  for  the  manufacturer’s  drugs  under  Medicaid  and  Medicare  Part  B.    The  340B  drug  pricing 
program requires participating manufacturers to agree to charge statutorily-defined covered entities no more 
than  the  340B  “ceiling  price”  for  the  manufacturer’s  covered  outpatient  drugs.    These  340B  covered 
entities include a variety of community health clinics and other entities that receive health services grants 
from  the  Public  Health  Service,  as  well  as  hospitals  that  serve  a  disproportionate  share  of  low-income 
patients.   

In  addition,  in  order  to  be  eligible  to  have  its  products  paid  for  with  federal  funds  under  the 
Medicaid  and  Medicare  Part  B  programs  and  purchased  by  certain  federal  agencies  and  grantees,  a 
manufacturer also must participate in the FSS pricing program, established by Section 603 of the VHCA.   
Under this program, the manufacturer is obligated to make its covered drugs available for procurement on 
an FSS contract and charge a price to the Big Four agencies that is no higher than the statutory Federal 
Ceiling Price.    Moreover, pursuant to DHA regulations, manufacturers must provide rebates on utilization 
of  their  covered  drugs  that  are  dispensed  to  TRICARE  beneficiaries  by  TRICARE  network  retail 
pharmacies.    The formula for determining the rebate is established in the regulations and is based on the 
difference between the annual Non-FAMP and the FCP in effect on the dispense date (these price points 
are  required  to  be  calculated  by  us  under  the  VHCA).  The  requirements  under  the  340B,  FSS,  and 
TRICARE programs could reduce the revenue we may generate from any products that are commercialized 
in the future and could adversely affect our business and operating results.

There  may  be  significant  delays  in  obtaining  coverage  and  reimbursement  for  newly  approved 
drugs, and coverage may be more limited than the purposes for which the drug is approved by the FDA or 
comparable foreign regulatory authorities. Moreover, eligibility for coverage and reimbursement does not 
imply  that  a  drug  will  be  paid  for  in  all  cases  or  at  a  rate  that  covers  our  costs,  including  research, 
development, manufacture, sale and distribution. Interim reimbursement levels for new drugs, if applicable, 
may also not be sufficient to cover our costs and may only be temporary. Reimbursement rates may vary 
according to the use of the drug and the clinical setting in which it is used, may be based on reimbursement 
levels already set for lower cost drugs and may be incorporated into existing payments for other services. 
Net prices for drugs may be reduced by mandatory discounts or rebates required by government healthcare 
programs or private payors and by any future relaxation of laws that presently restrict imports of drugs from 
countries where they may be sold at lower prices than in the United States. Limited coverage may impact 
the demand for, or the price of, any product candidate for which we obtain marketing approval.    Third-
party payors also may seek additional clinical evidence, including expensive pharmacoeconomic studies
beyond the data required to obtain marketing approval, demonstrating clinical benefits and value in specific 
patient populations, before covering our products for those patients.    If reimbursement is available only 
for limited indications, we may not be able to successfully commercialize any product candidate for which 
we obtain marketing approval. Our inability to promptly obtain coverage and profitable reimbursement 
rates from both government-funded and private payors for any approved products that we develop could 
have a material adverse effect on our operating results, our ability to raise capital needed to commercialize 
products and our overall financial condition.

Changes in healthcare law and implementing regulations, including those based on recently enacted 
and future legislation, as well as changes in healthcare policy, may increase the difficulty and cost for 
us to commercialize our product candidates and affect the prices we may obtain.

The  United  States  and  many  foreign  jurisdictions  have  enacted  or  proposed  legislative  and 
regulatory changes affecting the healthcare system that could prevent or delay marketing approval of our 
product candidates, restrict or regulate post-approval activities and affect our ability to profitably sell any 
product candidate for which we obtain marketing approval. The United States government, state legislatures 
and foreign governments also have shown significant interest in implementing cost-containment programs 

31

 
to  limit  the  growth  of  government-paid  healthcare  costs,  including  price  controls,  restrictions  on 
reimbursement and requirements for substitution of generic products for branded prescription drugs.

In recent years, Congress has considered reductions in Medicare reimbursement levels for drugs 
administered  by  physicians.  CMS  also  has  authority  to  revise  reimbursement  rates  and  to  implement 
coverage  restrictions  for  some  drugs.  Cost  reduction  initiatives  and  changes  in  coverage  implemented 
through  legislation  or  regulation  could  decrease  utilization  of  and  reimbursement  for  any  approved 
products,  which  in  turn  would  affect  the  price  we  can  receive  for  those  products.  While  Medicare 
regulations apply only to drug benefits for Medicare beneficiaries, private payors often follow Medicare 
coverage policy and payment limitations in setting their own reimbursement rates. Therefore, any reduction 
in  reimbursement  that  results  from  federal  legislation  or  regulation  may  result  in  a  similar  reduction  in 
payments from private payors.

In March 2010, President Obama signed into law the Patient Protection and Affordable Care Act, 
as amended by the Health Care and Education Reconciliation Act of 2010 (collectively, the “Affordable 
Care  Act”).    This  law  substantially  changes  the  way  healthcare  is  financed  by  both  governmental  and 
private  insurers,  and  significantly  impacts  the  pharmaceutical  industry.    The  Affordable  Care  Act  is 
intended  to  broaden  access  to  health  insurance,  reduce  or  constrain  the  growth  of  healthcare  spending, 
enhance remedies against healthcare fraud and abuse, add new transparency requirements for healthcare 
and  health  insurance  industries,  impose  new  taxes  and  fees  on  pharmaceutical  and  medical  device 
manufacturers, and impose additional health policy reforms. Among other things, the Affordable Care Act 
expanded  manufacturers’  rebate  liability  under  the  Medicaid  Drug  Rebate  Program  by  increasing  the 
minimum Medicaid rebate for both branded and generic drugs, expanded the 340B program, and revised 
the definition of AMP. The legislation also extended Medicaid drug rebates, previously due only on fee-
for-service Medicaid utilization, to include the utilization of Medicaid managed care organizations as well 
and created an alternative rebate formula for certain new formulations of certain existing products that is 
intended to increase the amount of rebates due on those drugs.    On February 1, 2016, CMS issued final 
regulations to implement the changes to the Medicaid Drug Rebate program under the Affordable Care Act.   
These regulations became effective on April 1, 2016.   

Moreover,  certain  legislative  changes  to  and  regulatory  changes  under  the  Affordable  Care  Act 
have occurred in the 115th United States Congress and under the Trump Administration. For example, the 
Tax Cuts and Jobs Act, enacted on December 22, 2017, eliminated the shared responsibility payment for 
individuals who fail to maintain minimum essential coverage under section 5000A of the Internal Revenue 
Code of 1986, commonly referred to as the individual mandate, beginning in 2019. Additional legislative 
changes to and regulatory changes under the Affordable Care Act remain possible. Any such changes could 
decrease  the  number  of  individuals  with  health  coverage.  We  expect  that  the  Affordable  Care  Act,  as 
currently enacted or as it may be amended in the future, and other healthcare reform measures that may be 
adopted in the future could have a material adverse effect on our industry generally and on our ability to 
successfully commercialize our product candidates, if approved.

The Affordable Care Act requires pharmaceutical manufacturers of branded prescription drugs to 
pay  a  branded  prescription  drug  fee  to  the  federal  government.    Each  individual  pharmaceutical 
manufacturer pays a prorated share of the branded prescription drug fee of $4.1 billion in 2018, based on 
the  dollar  value  of  its  branded  prescription  drug  sales  to  certain  federal  programs  identified  in  the  law.   
Furthermore, the new law requires manufacturers to provide a 50% discount off the negotiated price of 
prescriptions filled by beneficiaries in the Medicare Part D coverage gap, referred to as the “donut hole.” 

The Affordable Care Act also expanded the Public Health Service’s 340B drug pricing discount 
program.    The  340B  drug  pricing  program  requires  participating  manufacturers  to  agree  to  charge 
statutorily-defined covered entities no more than the 340B “ceiling price” for the manufacturer’s covered 
outpatient  drugs.    The  Affordable  Care  Act  expanded  the  340B  program  to  include  additional  types  of 
covered entities: certain free-standing cancer hospitals, critical access hospitals, rural referral centers and 

32

 
sole community hospitals, each as defined by the Affordable Care Act. The Affordable Care Act exempts 
“orphan  drugs”—those  designated  under  section  526  of  the  Food,  Drug,  and  Cosmetic  Act—from  the 
ceiling price requirements for these newly-eligible entities.    Because the 340B ceiling price is determined 
based  on  AMP  and  Medicaid  drug  rebate  data,  the  revisions  to  the  Medicaid  rebate  formula  and  AMP 
definition described above could cause the required 340B discounts to increase.

In addition, other legislative changes have been proposed and adopted since the Affordable Care 
Act was enacted.    For example, recent legislative enactments have resulted in Medicare payments being 
subject to a two percent reduction, referred to as sequestration, until 2027. Continuation of sequestration or 
enactment of other reductions in Medicare reimbursement for drugs could affect our ability to achieve a 
profit on any candidate products that are approved for marketing.

We expect that the Affordable Care Act, as well as other healthcare reform measures that have and 
may be adopted in the future, may result in more rigorous coverage criteria and in additional downward 
pressure on the price that we receive for any approved product 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  revenue,  attain  profitability  or 
commercialize our products. 

If we are able to successfully commercialize any of our products and if we participate in the Medicaid 
drug  rebate  program  or  other  governmental  pricing  programs,  failure  to  comply  with  reporting  and 
payment  obligations  under  these  programs  could  result  in  additional  reimbursement  requirements, 
penalties,  sanctions  and  fines  which  could  have  a  material  adverse  effect  on  our  business,  financial 
condition, results of operations and growth prospects.

The Medicaid Drug Rebate Program and other governmental pricing programs require participating 
manufacturers to report pricing data to the government.    Pricing calculations vary among products and 
programs and include average manufacturer price and best price for the Medicaid Drug Rebate Program, 
average sales price for certain categories of drugs that are paid under Part B of the Medicare program, and 
FCP and non-FAMP for the FSS pricing program.    If we successfully commercialize any of our products 
and  participate  in  such  governmental  pricing  programs,  we  will  be  liable  for  errors  associated  with  our 
submission of pricing data.    That liability could be significant.    For example, if we are found to have 
knowingly  submitted  false  average  manufacturer  price,  average  sales  price,  best  price,  or  Non-FAMP 
information to the government, we may be liable for civil monetary penalties in the amount of $181,071
per item of false information.    If we are found to have made a misrepresentation in the reporting of average 
sales price, the statute provides for civil monetary penalties of up to $13,066 for each misrepresentation for 
each day in which the misrepresentation was applied.    Our failure to submit monthly/quarterly average 
manufacturer price, average sales price, and best price, and quarterly/annual Non-FAMP data on a timely 
basis could result in a civil monetary penalty of $18,107 per day for each day the information is late beyond 
the  due  date.    Such  failure  also  could  be  grounds  for  other  sanctions,  such  as  termination  from  the 
Medicaid Drug Rebate Program.

If we fail to comply with data protection laws and regulations, we could be subject to government 
enforcement actions (which could include civil or criminal penalties), private litigation and/or adverse 
publicity, which could negatively affect our operating results and business.

We  are  subject  to  data  protection  laws  and  regulations  (i.e.,  laws  and  regulations  that  address 
privacy and data security). In the U.S., numerous federal and state laws and regulations, including state data 
breach notification laws, state health information privacy laws, and federal and state consumer protection 
laws  (e.g.,  Section 5 of  the  Federal  Trade  Commission  Act),  govern  the  collection,  use,  disclosure,  and 

33

 
protection of health-related and other personal information. Failure to comply with data protection laws and 
regulations could result in government enforcement actions and create liability for us (which could include 
civil and/or criminal penalties), private litigation and/or adverse publicity that could negatively affect our 
operating  results  and  business.  In  addition,  we  may  obtain  health information  from  third  parties  (e.g., 
healthcare providers who prescribe our products) that are subject to privacy and security requirements under 
HIPAA. Although we are not directly subject to HIPAA—other than potentially with respect to providing 
certain employee benefits—we could be subject to criminal penalties if we knowingly obtain or disclose 
individually identifiable health information maintained by a HIPAA-covered entity in a manner that is not 
authorized or permitted by HIPAA. HIPAA generally requires that healthcare providers and other covered 
entities obtain written authorizations from patients prior to disclosing protected health information of the 
patient (unless an exception to the authorization requirement applies). If authorization is required and the 
patient fails to execute an authorization or the authorization fails to contain all required provisions, then we 
may not be allowed access to and use of the patient’s information and our research efforts could be impaired 
or delayed. Furthermore, use of protected health information that is provided to us pursuant to a valid patient 
authorization is subject to the limits set forth in the authorization (e.g., for use in research and in submissions 
to  regulatory  authorities  for  product  approvals).  In  addition,  HIPAA  does  not  replace  federal,  state, 
international or other laws that may grant individuals even greater privacy protections.

Our  relationships  with  customers  and  third-party  payors  will  be  subject  to  applicable  anti-kickback, 
fraud  and  abuse,  transparency  and  other  healthcare  laws  and  regulations,  which  could  expose  us  to 
criminal sanctions, civil penalties, contractual damages, reputational harm, administrative burdens and 
diminished profits and future earnings.

Healthcare providers, physicians and third-party payors play a primary role in the recommendation 
and  prescription  of  any  product  candidates  for  which  we  obtain  marketing  approval.  Our  future 
arrangements with third-party payors and customers may expose us to broadly applicable fraud and abuse 
and other healthcare laws and regulations that may constrain the business or financial arrangements and 
relationships  through  which  we  market,  sell  and  distribute  our  products  for  which  we  obtain  marketing 
approval.  Restrictions  under  applicable  federal  and  state  healthcare  laws  and  regulations  include  the 
following: 

(cid:120)

(cid:120)

the federal Anti-Kickback Law prohibits persons from, among other things, knowingly and 
willfully soliciting, offering, receiving or providing remuneration, directly or indirectly, in 
cash or in kind, to induce or reward, or in return for, the referral of an individual for the 
furnishing or arranging for the furnishing, or the purchase, lease or order, or arranging for 
or recommending purchase, lease or order, any good or service for which payment may be 
made under a federal healthcare program such as Medicare and Medicaid;

the federal civil False Claims Act imposes penalties, including through civil whistleblower 
or  qui  tam  actions,  against  individuals  or  entities  for,  among  other  things, knowingly 
presenting, or causing to be presented, to the federal government, claims for payment that 
are false or fraudulent or making a false statement material to an obligation to pay money 
to  the  government  or  knowingly  concealing  or  knowingly  and  improperly  avoiding, 
decreasing, or concealing an obligation to pay money to the federal government;

(cid:120) HIPAA  imposes  criminal  liability  for  knowingly  and  willfully  executing  a  scheme  to 
defraud any healthcare benefit program, knowingly and willfully embezzling or stealing 
from a health care benefit program, willfully obstructing a criminal investigation of a health 
care  offense,  or  knowingly  and  willfully  making  false  statements  relating  to  healthcare 
matters;

34

 
(cid:120) HIPAA and its implementing regulations also impose obligations on certain covered entity 
health care providers, health plans and health care clearinghouses as well as their business 
associates  that  perform  certain  services  involving  the  use  or  disclosure  of  individually 
identifiable  health  information,  including  mandatory  contractual  terms,  with  respect  to 
safeguarding  the  privacy,  security  and  transmission  of  individually  identifiable  health 
information;

(cid:120)

(cid:120)

the federal Open Payments program, created under Section 6002 of the Affordable Care 
Act and its implementing regulations, requires manufacturers of drugs, devices, biologics 
and  medical  supplies  for  which  payment  is  available  under  Medicare,  Medicaid  or  the 
Children’s Health Insurance Program (with certain exceptions) to report annually to the 
CMS information  related  to  “payments  or  other  transfers  of  value”  made  to  physicians 
(defined  to  include  doctors,  dentists,  optometrists,  podiatrists  and  chiropractors)  and 
teaching  hospitals,  and  applicable  manufacturers  and  applicable  group  purchasing 
organizations  to  report  annually  CMS ownership  and  investment  interests  held  by 
physicians (as defined above) and their immediate family members; and

analogous  state  and  foreign  laws  and  regulations,  such  as  state  anti-kickback  and  false 
claims laws, which may apply to sales or marketing arrangements and claims involving 
healthcare items or services reimbursed by non-governmental third-party payors, including 
private insurers; state and foreign laws that require pharmaceutical companies to comply 
with  the  pharmaceutical  industry’s  voluntary  compliance  guidelines  and  the  relevant 
compliance  guidance  promulgated  by  the  federal  government  or  otherwise  restrict 
payments  that  may  be  made  to  certain  healthcare  providers;  state  and  foreign  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 and 
foreign  laws  that  govern  the  privacy  and  security  of  health  information  in  certain 
circumstances, many of which differ from each other in significant ways and often are not 
preempted by HIPAA, thus complicating compliance efforts.

Efforts  to  ensure  that  our  business  arrangements  with  third  parties  will  comply  with  applicable 
healthcare laws and regulations will involve substantial costs. It is possible that governmental authorities 
will conclude that our business practices may not comply with current or future statutes, regulations or case 
law interpreting applicable fraud and abuse or other healthcare laws and regulations. If our operations are 
found to be in violation of any of these laws or any other governmental regulations that may apply to us, 
we may be subject to significant civil, criminal and administrative penalties, damages, fines, imprisonment, 
exclusion  from  government  funded  healthcare  programs,  such  as  Medicare  and  Medicaid,  and  the 
curtailment  or  restructuring  of  our  operations.  If  any  of  the  physicians  or  other  healthcare  providers  or 
entities with whom we expect to do business is found not to be in compliance with applicable laws, that 
person or entity may be subject to criminal, civil or administrative sanctions, including exclusions from 
government funded healthcare programs.    For a fuller discussion of the applicable anti-kickback fraud and 
abuse,  transparency  and  other  healthcare  laws  and  regulations  applicable  to  our  business,  see  Item  1, 
“Description of Business – Government Regulation.”

Developments by competitors may render our products or technologies obsolete or non-competitive.

We  compete  against  fully  integrated  pharmaceutical  companies  and  smaller  companies  that  are 
collaborating with larger pharmaceutical companies as well as academic institutions, government agencies 
and other public and private research organizations. Many of these competitors, either alone or together 
with their collaborative partners, operate larger research and development programs or have substantially 

35

 
greater financial resources than we do, as well as more experience in:

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

developing drugs;

undertaking pre-clinical testing and human clinical trials;

obtaining FDA and other regulatory approvals of drugs;

formulating and manufacturing drugs; and

launching, marketing and selling drugs.

Large  pharmaceutical  companies  currently  sell  both  generic  and  proprietary  compounds  for  the 
treatment  of  cancer.  In  addition,  companies  developing  oncology  therapies  represent  substantial 
competition. Many of these organizations have substantially greater capital resources, larger research and 
development staff and facilities, history in obtaining regulatory approvals and greater manufacturing and 
marketing capabilities than we do. These organizations also compete with us to attract qualified personnel, 
parties for acquisitions, joint ventures or other collaborations. Our competitors may succeed in obtaining 
regulatory approval of their products more rapidly than we are able to, obtaining patent protection or other 
intellectual property rights that limit our ability to develop or commercialize our product candidates, or 
developing products that are more effective and/or safer than ours, any of which could render our product 
candidates less competitive prior to recovery by us of expenses incurred with respect to their development 
and could lead us to alter our business plans or development strategies. For example, in response to the 
changing treatment landscape for renal cell carcinoma (“RCC”) patients over the past two years with the 
approval of new therapies by the FDA, in February 2018, we announced plans to discontinue the internally 
funded programs of RX-0201 and ceased enrolling patients in a Phase 2a proof-of-concept clinical trial of 
RX-0201 in patients with metastatic RCC.

If we are unable to successfully manage our growth, our business may be harmed.

In addition to our own internally developed drug candidates, we are actively seeking opportunities 
to in-license compounds in oncology and other therapeutic areas that are strategic additions to our product 
pipeline. Such additional drug candidates could significantly increase our capital requirements and place 
further  strain  on  our  resources,  including  on  the  time  of  our  existing  personnel,  which  may  delay  or 
otherwise adversely affect the development of our existing drug candidates. As of December 31, 2017, we 
had 17 full-time employees. We may need to hire more employees as our product pipeline and operations 
expand, further increasing the size of our organization and related expenses. If we are unable to manage 
our growth effectively, we may not efficiently use our resources, which may delay the development of our 
drug candidates and negatively impact our business, results of operations and financial condition.

We  may  not  be  able  to  attract  and  retain  qualified  personnel  necessary  for  the  development  and 
commercialization  of  our  drug  candidates.  Our  success  may  be  negatively  impacted  if  key  personnel 
leave.

Attracting  and  retaining  qualified  personnel  is  critical  to  our  future  success.  We  compete  for 
qualified  individuals  with  numerous  biopharmaceutical  companies,  universities  and  other  research 
institutions. Competition for such individuals is intense, and we cannot assure you that we will be successful 
in engaging personnel with the skills and experience to support our business and research and development 
activities.

36

 
Our key personnel, especially Dr. Peter Suzdak, our Chief Executive Officer, Mr. Douglas Swirsky, 
our President and Chief Financial Officer, Dr. Ely Benaim, our Chief Medical Officer, and Dr. Lisa Nolan, 
our Chief Business Officer, provide critical technical knowledge and expertise.    The loss of, Dr. Suzdak, 
Mr. Swirsky, Dr. Benaim, Dr. Nolan or any of the other members of our management team could result in 
delays in product development and diversion of management resources, which could adversely affect our 
operating results. We do not have “key person” life insurance policies for any of our executive officers.

The  recently  passed  comprehensive  tax  reform  bill  could  adversely  affect  our  business  and  financial 
condition.

On December 22, 2017, President Trump signed into law new legislation that significantly revises 
the Internal Revenue Code of 1986, as amended. The newly enacted federal income tax law, among other 
things, contains significant changes to corporate taxation, including reduction of the corporate tax rate from 
a top marginal rate of 35% to a flat rate of 21%, and limitation of the deduction for net operating losses to 
80% of current year taxable income and elimination of net operating loss carrybacks. Notwithstanding the 
reduction in the corporate income tax rate, the overall impact of the new federal tax law is uncertain, and 
our business and financial condition could be adversely affected. The impact of this tax reform on holders 
of our common stock is also uncertain and could be adverse. 

We may incur substantial liabilities and may be required to limit commercialization of our products in 
response to product liability lawsuits.

The testing and marketing of medical products entail an inherent risk of product liability. Product 
liability claims may be brought against us by subjects enrolled in our clinical trials, patients, healthcare 
providers or others using, administering or selling our products. Large judgments have been awarded in 
class action lawsuits based on drugs that had unanticipated side effects. If we cannot successfully defend 
ourselves  against  product  liability  claims,  we  may  incur  substantial  liabilities  or  be  required  to  limit 
commercialization  of  our  products.  Our  inability  to  obtain  sufficient  product  liability  insurance  at  an 
acceptable  cost  to  protect  against  potential  product  liability  claims  could  prevent  or inhibit  the 
commercialization  of  pharmaceutical  products  we  develop,  alone  or  with  collaborators.  Although  we 
currently carry clinical trial insurance and product liability insurance we, or any collaborators, may not be 
able to maintain such insurance at a reasonable cost. Even if our agreements with any future collaborators 
entitle us to indemnification against losses, such indemnification may not be available or adequate should 
any claims arise.

Risks Related to Reliance on Third Parties

Much  of  our  drug  development  program  depends  upon  third parties,  and  thus  the  conduct  and 
completion of our clinical trials are, to some extent, beyond our control.

We have engaged third-party CROs and other investigators and collaborators, such as universities, 
medical institutions and other life science companies, to conduct our pre-clinical studies, toxicology studies 
and clinical trials, and to pursue development for our product candidates. For example, in February 2018, 
we entered into a research collaboration and license agreement with Zhejiang Haichang Biotechnology Co., 
Ltd. (“Haichang”) pursuant to which Haichang will develop a nano-liposomal formulation of RX-0201 and 
will conduct certain pre-clinical and clinical activities through completion of a Phase 2a proof-of-concept 
clinical trial in hepatic cell carcinoma in China.    Engaging third parties, or collaborating with third parties, 
is typical practice in our industry. However, relying on such organizations means that the conduct of clinical 
trials and other studies, and the completion of these trials and studies, is not within our direct control. Trials 
and  studies  may  be  delayed  due  to  circumstances  outside our  control,  and  such  delays  may  result  in 
additional expenses for us.

37

 
While we make efforts to oversee the work of third-party contractors, these collaborators are not 
our employees, and we cannot control the effort, time or other resources that they devote to our programs. 
Third parties may not assign priority to our programs or pursue them as diligently as we would if we were 
undertaking them ourselves. 

If  outside  collaborators  fail  to  devote  sufficient  time  and  resources  to  our  drug-development 
programs, or if their performance is substandard, the approval of our FDA applications and introduction of 
new  drugs  to  the  market  may  be  delayed  or  unsuccessful.  For  example,  the  success  of  the  Haichang 
agreement  depends  on,  among  other  things,  the  skills,  experience  and  efforts  of  Haichang,  Haichang’s 
commitment  to  the  arrangement,  and  the  financial  condition  of  Haichang,  all  of  which  are  beyond  our 
control. In the event that Haichang fails to successfully develop or commercialize RX-0201, including due 
to early termination of the Haichang agreement, our ability to obtain license fees, milestone payments and 
royalties would be adversely affected, which could have an adverse effect on our financial condition and 
results of operation.    Our collaborators may also have relationships with other commercial entities, some 
of which may compete with us. If our collaborators assist our competitors at our expense, our competitive 
position would be harmed.

We rely exclusively on third parties to formulate and manufacture our drug candidates, which exposes
us to a number of risks that may delay development, regulatory approval and commercialization of our 
products or result in higher product costs.

We  have  no  experience  in  drug  formulation  or  manufacturing  and  we  lack  the  resources  and 
expertise to formulate or manufacture our own drug candidates internally. Therefore, we rely on third-party 
expertise  to  support  us  in  this  area.  We  have  entered  into  contracts  with  third-party  manufacturers  to 
manufacture, supply, store and distribute supplies of our drug candidates for our clinical trials. If any of our 
drug candidates receives FDA approval, we expect to rely on third-party contractors to manufacture our 
drugs. We have no current plans to build internal manufacturing capacity for any product candidate, and 
we have no long-term supply arrangements.

Our reliance on third-party manufacturers exposes us to potential risks, such as the following:

(cid:120) We may be unable to contract with third-party manufacturers on acceptable terms, or at all, because 
the number of potential manufacturers is limited. Potential manufacturers of any product candidate 
that is approved will be subject to FDA compliance inspections and any new manufacturer would 
have to be qualified to produce our products;

(cid:120) Our  third-party  manufacturers  might  be  unable  to  formulate  and  manufacture  our  drugs  in  the 

volume and of the quality required to meet our clinical and commercial needs, if any;

(cid:120) Our  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 through completion or to 
successfully produce, store and distribute our commercial products, if approved;

(cid:120) Drug manufacturers are subject to ongoing periodic unannounced inspection by the FDA and other 
government  agencies  to  ensure  compliance  with  cGMP and  other  government  regulations  and 
corresponding  foreign  standards.  We  do  not  have  control  over  third-party  manufacturers’ 
compliance with these regulations and standards, but we may ultimately be responsible for any of 
their failures;

(cid:120)

If any third-party manufacturer makes improvements in the manufacturing process for our products, 

38

 
we may not own, or may have to share, the intellectual property rights to such improvements; and

(cid:120) A third-party manufacturer may gain knowledge from working with us that could be used to supply 

one of our competitors with a product that competes with ours.

Each of these risks could delay or have other adverse impacts on our clinical trials and the approval 
and commercialization of our drug candidates, potentially resulting in higher costs, reduced revenues or 
both.

We have no experience selling, marketing or distributing products and currently no internal capability 
to do so.

We currently have no sales, marketing or distribution capabilities. While we intend to have a role 
in the commercialization of our products, we do not anticipate having the resources in the foreseeable future 
to  develop  global  sales  and  marketing  capabilities  for  all  of  our  proposed  products.  Our  future  success 
depends, in part, on our ability to enter into and maintain collaborative relationships with other companies 
that  have sales,  marketing  and  distribution  capabilities,  a  strategic  interest  in  the  products  under 
development, and the ability to successfully market and sell our products. To the extent that we decide not 
to, or are unable to, enter into collaborative arrangements with respect to the sales and marketing of our 
proposed products,  significant  capital expenditures, management  resources  and  time  will  be  required  to 
establish and develop an in-house marketing and sales force with the necessary expertise. We cannot assure 
you that we will be able to establish or maintain relationships with third-party collaborators or develop in-
house sales and distribution capabilities. To the extent that we depend on third parties for marketing and 
distribution, any revenues we receive will depend upon the efforts of such third parties, as well as the terms 
of our agreements with such third parties, which cannot be predicted at this early stage of our development. 
We cannot assure you that such efforts will be successful. In addition, we cannot assure you that we will 
be able to market and sell our products in the United States or overseas.

Risks Related to Our Intellectual Property

If we fail to adequately protect or enforce our intellectual property rights or secure rights to patents of 
others, the value of our intellectual property rights would diminish, and our business and competitive 
position would suffer.

Our success, competitive position and future revenues will depend in part on our ability and the 
abilities of our licensors and licensees to obtain and maintain patent protection for our products, methods,
processes and other technologies, to preserve our trade secrets, to prevent third parties from infringing on 
our proprietary rights and to operate without infringing the proprietary rights of third parties. We have an 
active patent protection program that includes filing patent applications on new compounds, formulations, 
delivery systems and methods of making and using products and prosecuting these patent applications in 
the  United  States  and  abroad.  As  patents  issue,  we  also  file  continuation  applications  as  appropriate. 
Although we have taken steps to build a strong patent portfolio, we cannot predict:

(cid:120)

(cid:120)

the degree and range of protection any patents will afford us against competitors, including whether 
third parties find ways to invalidate or otherwise circumvent our licensed patents;

if and when patents will issue in the United States or any other country;

(cid:120) whether or not others will obtain patents claiming aspects similar to those covered by our licensed 

patents and patent applications;

39

 
(cid:120) whether we will need to initiate litigation or administrative proceedings to protect our intellectual 

property rights, which may be costly whether we win or lose;

(cid:120) whether  any  of  our  patents  will  be  challenged  by  our  competitors  alleging  invalidity  or 
unenforceability and, if opposed or litigated, the outcome of any administrative or court action as 
to patent validity, enforceability or scope;

(cid:120) whether  a  competitor  will  develop  a  similar  compound  that  is  outside  the  scope  of  protection 
afforded  by  a  patent  or  whether  the  patent  scope  is  inherent  in  the  claims  modified  due  to 
interpretation of claim scope by a court;

(cid:120) whether there were activities previously undertaken by a licensor that could limit the scope, validity 

or enforceability of licensed patents and intellectual property; or

(cid:120) whether a competitor will assert infringement of its patents or intellectual property, whether or not 

meritorious, and what the outcome of any related litigation or challenge may be.

Our success also depends upon the skills, knowledge and experience of our scientific and technical 
personnel,  our  consultants  and  advisors  as  well  as  our  licensors,  sublicensees  and  contractors.  To  help 
protect our proprietary know-how and our inventions for which patents may be unobtainable or difficult to 
obtain,  we  rely  on  trade  secret  protection  and  confidentiality  agreements.  To  this  end,  we  require  all 
employees  to  enter  into  agreements  that  prohibit  the  disclosure  of  confidential  information  and,  where 
applicable, require disclosure and assignment to us of the ideas, developments, discoveries and inventions 
important to our business. These agreements  may not provide adequate protection for our trade secrets, 
know-how or other proprietary information in the event of any unauthorized use or disclosure or the lawful 
development  by  others  of  such  information.  If  any  of  our  trade  secrets,  know-how  or  other  proprietary 
information is disclosed, the value of our trade secrets, know-how and other proprietary rights would be 
significantly impaired, and our business and competitive position would suffer.

Due to legal and factual uncertainties regarding the scope and protection afforded by patents and other 
proprietary rights, we may not have meaningful protection from competition.

Our  long-term  success  will  substantially  depend  upon  our  ability  to  protect  our  proprietary 
technologies  from  infringement,  misappropriation,  discovery  and  duplication  and  avoid  infringing  the 
proprietary  rights  of  others.  Our  patent  rights,  and  the  patent  rights  of  biopharmaceutical  companies  in 
general, are highly uncertain and include complex legal and factual issues. These uncertainties also mean 
that any patents that we own or may obtain in the future could be subject to challenge, and even if not 
challenged, may not provide us with meaningful protection from competition. Patents already issued to us 
or our pending applications may become subject to dispute, and any dispute could be resolved against us.

In connection with the process of seeking patent protection for RX-5902 in Japan, we filed a patent 
application including claims covering RX-5902 with the Japanese Patent Office (“JPO”) for examination. 
The JPO initially agreed that the claims covering the compound for RX-5902 were allowable, but as a result 
of a mistake in the patent application filing as prepared and submitted by our Japanese patent attorney and 
incomplete review by the JPO’s patent examiner, the JPO issued a decision to grant a patent with claims 
that did not include RX-5902’s chemical structure. We appealed this decision with the JPO and requested
withdrawal of the ‘decision to grant’ so that the correct claims would be allowed, but the JPO refused to 
withdraw its decision. As a result, and in accordance with Japanese law and procedure for appealing patent 
application decisions, we have filed a lawsuit against the JPO in Tokyo District Court to cause the JPO to 

40

 
reverse  its  decision  to  grant  the  errant  patent  and  to  allow  a  patent  that  includes  claims  covering  RX-
5902. The patent application at issue remains pending subject to the outcome of this action. However, 
there can be no guarantee that we will be successful in winning the appeal to correct the error in the patent 
registration that would exclude the compound for RX-5902. While the composition of matter patent on 
RX-5902’s structure  remains  pending  in  Japan,  we  have also  filed,  or  intend  to  file,  additional  patents 
covering method of use and manufacturing process that would extend to 2035/2036 if approved.    We also 
expect that RX-5902 will be covered by regulatory exclusivity up to ten years post approval.

If we infringe the rights of third parties, we could be prevented from selling products and be forced to 
defend against litigation and pay damages.

If our products, methods, processes and other technologies infringe the proprietary rights of other 

parties, we could incur substantial costs and may have to:   

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

obtain licenses, which may not be available on commercially reasonable terms, if at all;

redesign our products or processes to avoid infringement;

stop using the subject matter claimed in patents held by others, which could cause us to lose the 
use of one or more of our drug candidates;

pay damages; or

defend litigation or administrative proceedings that may be costly whether we win or lose and that 
could result in a substantial diversion of our management resources.

Although we have not received any claims of infringement by any third parties to date, we expect 
that as our drug candidates move further into clinical trials and commercialization and our public profile is 
raised, we may be subject to such claims.

Risks Related to Ownership of Our Common Stock

An investment in shares of our common stock is very speculative and involves a very high degree of risk.

To  date,  we  have  generated  no revenues  from  product  sales  and  only  minimal  revenues  from  a 
research  agreement  with  a  minority  stockholder and  interest  on  bank  account  balances  and  short-term 
investments.  Our  accumulated deficit  as  of  December  31,  2017 and  2016 was $140,318,712  and 
$115,024,209 respectively. For the years ended December 31, 2017, 2016 and 2015, we had net losses of
$25,294,503, $9,307,345 and $14,384,556 respectively, partially as a result of expenses incurred through a 
combination of research and development activities related to the various technologies under our control 
and expenses supporting those activities. Until we receive approval from the FDA and other regulatory 
authorities for our drug candidates, we cannot sell our drugs and will not have product revenues.

The market price of our common stock may fluctuate significantly.

The market price of our common stock may fluctuate significantly in response to factors, some of 

which are beyond our control, such as:

(cid:120)

the announcement of new products or product enhancements by us or our competitors;

41

 
(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

changes in our relationships with our licensors or other strategic partners;

developments concerning intellectual property rights and regulatory approvals;

variations in our and our competitors’ results of operations;

changes in earnings estimates or recommendations by securities analysts; 

changes in the structure of healthcare payment systems; and

developments and market conditions in the pharmaceutical and biotechnology industries.

Further, the stock market, in general, and the market for biotechnology companies, in particular, 
have  experienced  extreme  price  and  volume  fluctuations.  Continued  market  fluctuations  could  result  in 
extreme volatility in the price of our common stock, which may be unrelated or disproportionate to our 
operating performance and which could cause a decline in the value of our common stock. You should also 
be aware that price volatility might be worse if the trading volume of our common stock is low. 

We will require additional capital funding the receipt of which may impair the value of our common 
stock.

Our future capital requirements depend on many factors, including our research, development, sales 
and marketing activities. We will need to raise additional capital through public or private equity or debt 
offerings or through arrangements with strategic partners or other sources in order to continue to develop 
our drug candidates.    There can be no assurance that additional capital will be available when needed or 
on terms satisfactory to us, if at all. To the extent we raise additional capital by issuing equity securities, 
our stockholders may experience substantial dilution and the new equity securities may have greater rights, 
preferences or privileges than our existing common stock.

We have not paid dividends to our stockholders in the past, and we do not anticipate paying dividends to 
our stockholders in the foreseeable future.

We have not declared or paid cash dividends on our common stock. We currently intend to retain 
all  future  earnings,  if  any,  to  fund  the  continuing  operation  of  our  business,  and  therefore  we  do  not 
anticipate paying dividends on our common stock in the foreseeable future. As a result, you will not realize 
any income from an investment in our common stock until and unless you sell your shares at a profit.

We may be subject to securities litigation, which is expensive and could divert management attention.

The  market  price  of  our  common  stock  may  be volatile,  and  in  the  past  companies  that  have 

experienced volatility in the market price of their stock have been subject to securities class action litigation.   
We may be the target of this type of litigation in the future.    Securities litigation against us could result in 
substantial  costs  and  direct  our  management’s  attention  from  other  business  concerns,  which  could 
seriously harm our business.

42

 
Item 1B.  Unresolved Staff Comments.

None

Item 2.    Description of Property.

We lease approximately 7,193 square feet of office space in Rockville, Maryland.    We also lease 
approximately 1,100 square feet of laboratory space in Gaithersburg, Maryland. The laboratory space is 
equipped with the requisite laboratory services required to conduct our business and we believe our existing 
facilities are adequate to meet our needs for the foreseeable future. The office lease, which commenced on 
June 29, 2009, expires in June 2019. The laboratory lease, which commenced on July 1, 2015, expires in 
June 2020. We do not own any real property. 

Item 3.    Legal Proceedings.

None 

Item 4.  Mine Safety Disclosures.

Not Applicable

(cid:3)

43

 
PART II

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

Our common stock is traded on NYSE American, under the ticker symbol “RNN”.    As of March 
9, 2018, there were approximately 54 stockholders of record of our common stock.    The following table 
sets forth the high and low sales prices of our common shares as reported on NYSE American during the 
periods indicated.   

Period

2016

First Quarter
Second Quarter
Third Quarter
Fourth Quarter

2017

First Quarter
Second Quarter
Third Quarter
Fourth Quarter

Reverse Stock Split

High ($)

Low ($)

4.25
3.42
2.80
2.29

5.62
7.10
3.06
3.19

2.60
2.40
2.02
1.27

1.36
2.80
1.70
1.69

On May 5, 2017, we effected a one-for-ten reverse stock split of the outstanding shares of our

common stock, together with a corresponding proportional reduction in the number of authorized shares 
of our capital stock. All share information contained in this report, including the sales prices listed 
above, has been retroactively adjusted to reflect the effects of the reverse split.

Dividends

We have not paid any cash dividends on common stock and do not expect to do so in the foreseeable 
future.    We  anticipate  that  any  earnings  generated  from  future  operations  will  be  used  to  finance  our 
operations.    No restrictions exist upon our ability to pay dividends.

Purchase of Equity Securities by the Issuer and Affiliated Purchasers

There were no repurchases of equity securities in 2017.

Recent Sales of Unregistered Equity Securities

None

44

 
Performance Graph

The  following  graph  compares  the  cumulative  total  stockholder  return  on  $100  of  our  common 
stock for the period beginning December 31, 2012 through December 31, 2017 with the cumulative total 
return over such period for an identical investment in (i) the NYSE Arca Biotechnology Index or (ii) the 
NYSE American Composite Index.    This graph and accompanying text is not deemed to be “filed” with 
the SEC or subject to the liabilities of Section 18 of the Exchange Act, and the graph shall not be deemed 
to be incorporated by reference into any prior or subsequent filing by us under the Securities Act or the 
Exchange Act.

(cid:3)(cid:936)(cid:1007)(cid:1004)(cid:1004)

(cid:3)(cid:936)(cid:1006)(cid:1009)(cid:1004)

(cid:3)(cid:936)(cid:1006)(cid:1004)(cid:1004)

(cid:3)(cid:936)(cid:1005)(cid:1009)(cid:1004)

(cid:3)(cid:936)(cid:1005)(cid:1004)(cid:1004)

(cid:3)(cid:936)(cid:1009)(cid:1004)

(cid:3)(cid:936)(cid:882)

(cid:1005)(cid:1006)(cid:876)(cid:1005)(cid:1006)

(cid:1005)(cid:1006)(cid:876)(cid:1005)(cid:1007)

(cid:1005)(cid:1006)(cid:876)(cid:1005)(cid:1008)

(cid:1005)(cid:1006)(cid:876)(cid:1005)(cid:1009)

(cid:1005)(cid:1006)(cid:876)(cid:1005)(cid:1010)

(cid:1005)(cid:1006)(cid:876)(cid:1005)(cid:1011)

(cid:90)(cid:286)(cid:454)(cid:258)(cid:346)(cid:374)(cid:3)(cid:87)(cid:346)(cid:258)(cid:396)(cid:373)(cid:258)(cid:272)(cid:286)(cid:437)(cid:410)(cid:349)(cid:272)(cid:258)(cid:367)(cid:400)(cid:853)(cid:3)(cid:47)(cid:374)(cid:272)(cid:856)

(cid:69)(cid:122)(cid:94)(cid:28)(cid:3)(cid:4)(cid:396)(cid:272)(cid:258)(cid:3)(cid:17)(cid:349)(cid:381)(cid:410)(cid:286)(cid:272)(cid:346)(cid:374)(cid:381)(cid:367)(cid:381)(cid:336)(cid:455)(cid:3)(cid:47)(cid:374)(cid:282)(cid:286)(cid:454)

(cid:69)(cid:122)(cid:94)(cid:28)(cid:3)(cid:4)(cid:373)(cid:286)(cid:396)(cid:349)(cid:272)(cid:258)(cid:374)(cid:3)(cid:18)(cid:381)(cid:373)(cid:393)(cid:381)(cid:400)(cid:349)(cid:410)(cid:286)(cid:3)(cid:47)(cid:374)(cid:282)(cid:286)(cid:454)

45

 
Item 6.    Selected Financial Data.

The following selected data should be read in conjunction with “Item 7. Management’s 
Discussion and Analysis of Financial Condition and Results of Operations” and our financial statements 
included elsewhere in this Annual Report.

Statement of Operations Data:
Revenues
Expenses:

$

2017

For the Year Ended December 31,
2015

2014

2016

2013

- $

- $

- $

- $

-

General and administrative
Research and development

Total expenses
Loss from operations
Other Income (Expense), net
Net Loss
Net Loss per share, basic and 
Weighted average shares 
outstanding, basic and diluted

Balance Sheet Data:

Cash, Cash Equivalents, and 
Marketable Securities
Working Capital(1)
Total Assets
Warrant Liabilities
Accumulated Deficit
Total Stockholders' Equity
Common shares outstanding

6,639,421
10,715,296
17,354,717
(17,354,717)
(7,939,786)

$ (25,294,503)$
(0.92)$
$

6,115,210
6,324,236
12,148,226
10,089,149
18,263,436
16,413,385
(18,263,436)
(16,413,385)
7,106,040
3,878,880
(9,307,345)$ (14,384,556)$ (18,521,601)$
(1.05)$

6,253,328
7,015,901
13,269,229
(13,269,229)
(5,252,372)

(0.79) $

(0.43) $

4,725,699
3,253,139
7,978,838
(7,978,838)
(1,520,586)
(9,499,424)
(0.74)

27,390,527

21,744,740

18,238,822

17,610,697

12,864,929

2017

2016

As of December 31,
2015

2014

2013

20,315,580 $
19,041,597 $
21,043,532 $
1,573,366 $

26,831,095 $
24,901,710 $
28,287,881 $
7,853,635 $

18,788,031
$
18,361,438
$
19,556,498
$
5,034,058
$
$ (140,318,712) $ (115,024,209) $ (105,716,864) $ (91,332,308) $ (72,810,707)
12,625,488
$
14,671,772
(cid:3)

32,698,296 $
30,970,020 $
33,533,060 $
3,768,351 $

23,439,526 $
22,000,046 $
24,805,029 $
2,739,163 $

26,580,491 $
17,825,331

16,768,596 $
31,725,114

17,058,462 $

18,775,548 $

(cid:3) 23,736,878

(cid:3) 19,741,378

(1) Working Capital defined as current assets less current liabilities

46

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

You should read the following discussion and analysis of our results of operations, financial condition and 
liquidity  in  conjunction  with  our  financial  statements  and  the  related  notes,  which  are  included  in  this 
Annual Report.    Some of the information contained in this discussion and analysis or set forth elsewhere 
in  this Annual  Report,  including  information  with  respect  to  our  plans  and  strategies  for  our  business, 
statements  regarding  the  industry  outlook,  our  expectations  regarding  the  future  performance  of  our 
business, and the other non-historical statements contained herein are forward-looking statements.    See 
“Cautionary  Statement Regarding  Forward-Looking  Statements.”    You  should  also  review  the “Risk 
Factors” section under this Item 1A of this Annual Report for a discussion of important factors that could 
cause  actual  results  to  differ  materially  from  the  results  described  herein  or  implied  by  such  forward-
looking statements.

OVERVIEW

We are a clinical stage biopharmaceutical company dedicated to the discovery, development and 
commercialization  of  innovative  treatments  for  cancer.  Our  mission  is  to  improve  the  lives  of  cancer 
patients  by  developing  next-generation  cancer  therapies  that  are  designed  to  maximize  efficacy  and
minimize the toxicity and side effects traditionally associated with cancer treatment. Our clinical pipeline 
features two product candidates in Phase 2 clinical development and additional compounds in pre-clinical 
development. Our strategy is to continue building a significant pipeline of innovative oncology product 
candidates that we will commercialize alone or with partners.

Since  our  inception,  our  efforts  and  resources  have  been  focused  primarily  on  developing  our 
pharmaceutical technologies, raising capital and recruiting personnel. We have no product sales to date, 
and we will not generate any product sales until we receive approval from the FDA or equivalent foreign 
regulatory bodies to begin selling our pharmaceutical candidates. Our major sources of working capital 
have been proceeds from various private and public financings, and licensing and collaboration agreements 
with our strategic investors and partners. 

On  May  5,  2017  we effected  a  one-for-ten  reverse  stock  split  of  the  outstanding  shares  of  our
common stock, together with a corresponding proportional reduction in the number of authorized shares of 
our  capital  stock.    See  Note  10,  “Common  Stock—Reverse  Stock  Split,”  in  the  Notes  to  the  Financial 
Statements of this Annual Report.

Critical Accounting Policies

A  “critical  accounting  policy”  is  one  which  is  both  important  to  the  portrayal  of  our  financial 
condition and results and requires our management’s most difficult, subjective or complex judgments, often 
as a result of the need to make estimates about the effect of matters that are inherently uncertain.    Our 
accounting policies are in accordance with U.S. generally accepted accounting principles and their basis of 
application  is  consistent  with  that  of  the  previous  year.    Our  significant  estimates  include  assumptions 
made in estimating the fair values of stock-based compensation, warrant liabilities, marketable securities, 
and our assessment relating to costs incurred on research and development contracts. 

Research and Development

Research and development costs are expensed as incurred.    Research and development expenses 
consist  primarily  of  third  party  service  costs  under  research  and  development  agreements,  salaries  and 
related  personnel  costs,  as  well  as  stock-based compensation  related  to  these  costs,  costs  to  acquire 

47

 
pharmaceutical  products  and  product  rights  for  development  and  amounts  paid  to  CROs, hospitals  and 
laboratories for the provision of services and materials for drug development and clinical trials.

Costs incurred in obtaining the license rights to technology in the research and development stage 

that have no alternative future uses and are for unapproved product compounds are expensed as incurred.

We are required to estimate our accrued expenses. This process involves reviewing open contracts 
and purchase orders, communicating with our personnel to identify services performed on our behalf and 
estimating  the  level  of  service  performed  and  the  associated  cost  incurred  when  we  have  not  yet  been 
invoiced or otherwise notified of the actual cost. The majority of our service providers invoice us monthly 
in arrears for services performed or when contractual milestones are met. We estimate our accrued expenses 
as of each balance sheet date in our financial statements based on facts and circumstances known to us at 
that time. Examples of estimated accrued research and development expenses include fees paid to:

(cid:120) CROs and investigative sites in connection with clinical studies;

(cid:120)

(cid:120)

vendors  in  connection  with product  manufacturing,  development,  and  distribution  of  clinical 
supplies; and

vendors in connection with preclinical development activities.

We record expenses related to clinical studies and manufacturing development activities based on 
our estimates of the services received and efforts expended pursuant to contracts with multiple CROs and 
manufacturing  vendors.  The  financial  terms  of  these  agreements  are  subject  to  negotiation,  vary  from 
contract to contract, and may result in uneven payment flows. There may be instances in which payments 
made to our vendors will exceed the level of services provided and result in a prepayment of the expense. 
Payments under some of these contracts depend on factors such as the successful enrollment of subjects 
and the completion of clinical trial milestones. In accruing service fees, we estimate the time period over 
which services will be performed, enrollment of subjects, number of sites activated and the level of effort 
to be expended in each period. If the actual timing of the performance of services or the level of effort varies 
from  our  estimate,  we  adjust  the  accrued  or  prepaid  expense  balance  accordingly.  Although  we  do  not 
expect our estimates to be materially different from amounts actually incurred, if our estimates of the status 
and timing of services performed differ from the actual status and timing of services performed, we may 
report amounts that are too high or too low in any particular period. To date, there have been no material 
differences from our estimates to the amounts actually incurred.

Fair Value of Financial Instruments

The  carrying  amounts  reported  in  the  accompanying  financial  statements  for  cash  and  cash 
equivalents and accounts payable and accrued expenses approximate fair value because of the short-term 
maturity  of  these  financial  instruments.    The  fair  value  methodology  for  our  warrant  liabilities  and 
marketable securities is described in detail in Item 8 of this Annual Report.

Income Taxes

We account for income taxes in accordance with Accounting Standards Codification (“ASC”) 740, 
“Income  Taxes.”    Deferred  tax  assets  and  liabilities  are  recorded  for  differences  between  the  financial 
statement and tax basis of the assets and liabilities that will result in taxable or deductible amounts in the
future based on enacted tax laws and rates.    ASC 740 requires that a valuation allowance be established 
when it is more likely than not that all portions of a deferred tax asset will not be realized.    A review of 
all  positive  and  negative  evidence  needs  to  be  considered,  including  a  company’s  current  and  past 
performance, the market environment in which the company operates, length of carryback and carryforward 
periods and existing contracts that will result in future profits.    Income tax expense is recorded for the 

48

 
amount of income tax payable or refundable for the period, increased or decreased by the change in deferred 
tax assets and liabilities during the period.

As a result of our significant cumulative losses, we determined that it was appropriate to establish 

a valuation allowance for the full amount of our net deferred tax assets.

The  calculation  of  our  tax  liabilities  involves  the  inherent  uncertainty  associated  with  the 
application  of  complex  tax  laws.    We  are  subject  to  examination  by  various  taxing  authorities.    We 
believe that as a result of our losses sustained to date, any examination would result in a reduction of our 
net operating loss carryforward rather than a tax liability.    As such, we have not provided for additional 
taxes estimated under ASC 740. 

Warrant Liabilities

We record warrant liabilities at fair value due to provisions in our warrant agreements, as discussed 
further  in  Note  12,  Warrants,  in  the  Notes  to  the  Financial  Statements in  this Annual  Report.    We 
reevaluate the fair value of our warrants at each reporting period, and changes in the fair value between 
reporting  periods  is  recorded  as  “unrealized  gain  (loss)  on  fair  value  of  warrants”  in  the  statement  of 
operations.

Stock-Based Compensation

In accordance with ASC 718, “Stock Compensation,” compensation costs related to share-based 
payment transactions, including employee stock options, are to be recognized in the financial statements. 
In  addition,  we  adhere  to  the  guidance  set  forth  within  SEC  Staff  Accounting  Bulletin  No.  107  (“SAB 
107”), which provides the Staff’s views regarding the interaction between ASC 718 and certain SEC rules 
and  regulations,  and  provides  interpretations  with  respect  to  the  valuation  of  share-based  payments  for 
public companies. 

We estimate the fair value of stock options using the Black-Scholes valuation model. The Black-

Scholes model requires the input of highly subjective assumptions. These assumptions include:

Expected Term. The expected term is estimated using the simplified method whereby the expected 
term  equals  the  arithmetic  average  of  the  vesting  term  and  the  original  contractual  term  of  the 
option.

Volatility. Volatility is based on the historical trading volatility of our stock on the date of grant for 
a period consistent with the expected term.

Risk-Free  Interest  Rate.  The  risk-free  interest  rate  is  based  on  the zero-coupon U.S.  Treasury 
instruments on the date of grant with a maturity date consistent with the expected term of our stock 
option grants.

Expected Dividend. To date, we have not declared or paid any cash dividends and do not have any 
plans to do so in the future. Therefore, we use an expected dividend yield of zero.

As required, we review our valuation assumptions at each grant date and, as a result, we may change
our valuation assumptions used to value employee stock-based awards granted in future periods. Employee 
and director stock-based compensation costs are recognized over the vesting period of the award.

49

 
Concentration of Credit Risk

ASC 825, “Financial Instruments,” requires disclosure of any significant off-balance sheet risk and 
credit risk concentration.    We do not have significant off-balance sheet risk or credit concentration.    We 
maintain cash and short-term investments with major financial institutions.    From time to time we have 
funds on deposit with commercial banks that exceed federally insured limits.    The balances are insured by 
the  Federal  Deposit  Insurance  Corporation  up  to  $250,000.  At  December  31,  2017 our  uninsured  cash 
balance was $8,399,154. Management does not consider this to be a significant credit risk as the banks are 
large, established financial institutions.

Recently Issued Accounting Standards

See  Note  2,  “Summary  of  Significant  Accounting  Policies in  the  Notes  to  the  Financial 
Statements,” in  the  Notes  to  Financial  Statements  in this  Annual  Report for  a  discussion  of  recent 
accounting pronouncements. 

Results of Operations

Comparison of the Years Ended December 31, 2017 and December 31, 2016

Total Revenues

We had no revenues for the years ended December 31, 2017 or 2016.

General and Administrative Expenses

General  and  administrative  expenses  consist  primarily  of  salaries  and  related  expenses  for 
executive, finance and other administrative personnel, recruitment expenses, professional fees and other 
corporate expenses, including business development, investor relations, and general legal activities.

General and administrative expenses increased approximately $315,000, or 5.0%, to $6,639,000 
for the year ended December 31, 2017 from $6,324,000 for the year ended December 31, 2016.    The year 
over year increase is primarily attributable to an increase in personnel expenses and professional fees.

Research and Development Expenses

Research and development expenses increased approximately $626,000, or 6.2%, to $10,715,000 
for the year ended December 31, 2017, from $10,089,000 for the year ended December 31, 2016. The 
increase in research and development costs is primarily attributable to increased clinical trial costs related 
to the progression of our Phase 2a proof-of-concept clinical trials for RX-3117, which we are currently 
evaluating  in  patients  with  relapsed  or  refractory  metastatic  pancreatic  cancer  and  locally  advanced  or 
metastatic bladder cancer.

50

 
The  table  below  summarizes  the  approximate  amounts  incurred  on  each  of  our  research  and 

development projects for the years ended December 31, 2017 and 2016:

Clinical Candidates:

RX-3117
RX-5902
RX-0201

For the Year Ended December 31, 

2017

2016

$

4,559,200 $
2,019,700
535,700

2,290,000
2,230,800
1,573,800

Preclinical, Personnel and Overhead

3,600,696

3,994,549

Total Research and Development Expenses

$

10,715,296 $

10,089,149

Interest Income

Interest  income  increased  approximately  $88,000, or  74.6%  to  $207,000  for  the  year  ended 
December  31,  2017 from  $119,000  for  the  year  ended  December  31,  2016. The  increase  is  primarily 
attributable  to  higher  interest  rates and  larger  balances on cash  and  cash  equivalents,  and  marketable 
securities for the year ended December 31, 2017 compared to the year ended December 31, 2016.

Mediation Settlement

During the year ended December 31, 2016, we received approximately $1,771,000 from a binding, 
one-time settlement agreement with one of our Japanese patent attorneys in exchange for our agreement 
not to bring any future claims related to a patent filing in Japan.

Unrealized (Loss) Gain on Fair Value of Warrants

Our warrants are recorded as liabilities at fair value, and the warrants are valued using a lattice 
model.    Changes in the fair value of warrants are recorded as an unrealized gain or loss in our statement 
of operations.    During the years ended December 31, 2017 and 2016, we recorded unrealized (losses) gains 
on the fair value of warrants of approximately ($7,594,000) and $5,530,000 respectively.    Estimating fair 
values of warrants requires the development of significant and subjective estimates that may, and are likely 
to, change over the duration of the warrants due to related changes to external market factors.    The large 
unrealized loss for the year ended December 31, 2017 primarily resulted from a significant increase in the 
stock price of the underlying common stock on December 31, 2017, as compared to December 31, 2016 
and from the price of the common stock compared to the warrant exercise price on dates during the year 
when  warrants  were  exercised. An  increase  in  volatility  of  the  common  stock  and an  increase  in  the 
number of outstanding warrants at times during the year ended December 31, 2017 also impacted the large 
unrealized loss for that period.

Financing Expense

We incurred approximately $553,000 and $313,000 of financing expenses during the year ended 
December 31, 2017, and 2016, respectively related to our registered direct offerings in October 2017, June 
2017, September 2016 and March 2016. 

51

 
Net Loss

Net loss for the year ended December 31, 2017 increased approximately $15,988,000 or 171.8%, 
to $25,295,000 ($0.92 per share) from $9,307,000 ($0.43 per share) for the year ended December 31, 2016, 
primarily  as  a  result  of  the  change  from  an  unrealized  gain  on  the  fair  value  of  warrants  in  2016  to  an 
unrealized loss on the fair value of warrants in 2017. 

Comparison of the Years Ended December 31, 2016 and December 31, 2015

Total Revenues

We had no revenues for the years ended December 31, 2016 or 2015.

General and Administrative Expenses

General  and  administrative  expenses  consist  primarily  of  salaries  and  related  expenses  for 
executive, finance and other administrative personnel, recruitment expenses, professional fees and other 
corporate expenses, including business development, investor relations, and general legal activities.

General and administrative expenses increased approximately $209,000, or 3.4%, to $6,324,000 
for the year ended December 31, 2016 from $6,115,000 for the year ended December 31, 2015.    The year 
over year increase is primarily attributable to an increase in personnel expenses.

Research and Development Expenses

Research  and  development  expenses  decreased approximately  $2,059,000,  or  16.9%,  to 
$10,089,000 for the year ended December 31, 2016, from $12,148,000 for the year ended December 31, 
2015.    Decreased research and development costs for the year ended December 31, 2016 were primarily 
attributable to lower manufacturing costs for our drug candidates due to a significant supply of our drug 
candidates already being available to us from earlier manufacturing campaigns.    During the year ended 
December  31,  2016,  we  incurred  approximately  $2,564,000 of  drug  manufacturing  costs,  compared  to 
approximately $5,614,000 during the year ended December 31, 2015.    Because the volume and timing of 
drug manufacturing does not correlate directly with the level and timing of clinical trial activity, we expect 
expenses related to drug manufacturing costs to vary from period to period based not only on the progress 
of  clinical  trials,  but  also  when  we  engage  in  manufacturing  activities.    The  decreases  to  drug 
manufacturing costs were partially offset by increases in clinical costs related to patient and site enrollment
and personnel costs.

52

 
The  table  below  summarizes  the  approximate  amounts  incurred  on  each  of  our  research  and 

development projects for the years ended December 31, 2016 and 2015:

Clinical Candidates:

RX-3117
RX-5902
RX-0201

For the Year Ended December 31, 

2016

2015

$

2,290,000 $
2,230,800
1,573,800

4,062,000
2,839,000
1,547,000

Preclinical, Personnel and Overhead

3,994,549

3,700,226

Total Research and Development Expenses

$

10,089,149 $

12,148,226

Interest Income

Interest  income  increased  approximately  $16,000  or  14.8%  to  $119,000 for  the  year  ended 
December  31,  2016  from  $103,000  for  the  year  ended  December  31,  2015.    The  increase  is  primarily 
attributable to higher interest rates on cash and cash equivalents, and  marketable securities for the year 
ended December 31, 2016 compared to the year ended December 31, 2015.

Mediation Settlement

During the year ended December 31, 2016, we received approximately $1,771,000 from a binding, 
one-time settlement agreement with one of our Japanese patent attorneys in exchange for our agreement
not to bring any future claims related to a patent filing in Japan.

Unrealized Gain on Fair Value of Warrants

Our warrants are recorded as liabilities at fair value, and the warrants are valued using a lattice 
model.    Changes in the fair value of warrants are recorded as an unrealized gain or loss in our statement 
of operations.    During the years ended December 31, 2016 and 2015, we recorded unrealized gains on the
fair  value  of  our  warrants  of  approximately  $5,530,000  and  $3,987,000 respectively.    Estimating  fair 
values of warrants requires the development of significant and subjective estimates that may, and are likely 
to, change over the duration of the warrant with related changes to external market factors. The unrealized 
gains for the years ended December 31, 2016 and 2015 primarily resulted from a decreased stock price 
underlying the common stock at December 31, 2016 and 2015, and from the greater number of warrants 
outstanding in 2016 compared to 2015.

Financing Expense

We incurred approximately $313,000 and $211,000 of financing expenses during the years ended 
December 31, 2016 and 2015, respectively, related to our registered direct offerings in September 2016, 
March 2016, and November 2015.

Net Loss

As  a  result  of  the  above,  net  loss  for  the  years  ended  December  31,  2016  and  2015 was

approximately $9,307,000 and $14,385,000 or $0.43 and $0.79 per share, respectively.

53

 
Research and Development Projects

Research and development costs are expensed as incurred. These costs consist primarily of salaries 
and related personnel costs, costs to acquire pharmaceutical products and product rights for development 
and amounts paid to CROs, hospitals and laboratories for the provision of services and materials for drug 
development and clinical trials. Costs incurred in obtaining the license rights to technology in the research 
and  development  stage  that  have  no  alternative  future  uses  are  expensed  as  incurred. Our  research  and 
development programs are related to our oncology drug candidates. As we expand our clinical studies, we 
expect  to enter  into  additional  development  agreements. Significant  additional  expenditures  will  be 
required  if  we  complete  our  clinical  trials,  start  new  trials,  apply  for  regulatory  approvals,  continue 
development of our technologies, expand our operations and bring our products to market. The eventual 
total cost of each clinical trial is dependent on a number of uncertainties such as trial design, the length of 
the trial, the number of clinical sites and the number of patients. The process of obtaining and maintaining 
regulatory  approvals  for  new  therapeutic  products  is  lengthy,  expensive  and  uncertain. Because  the 
successful development of our most advanced drug candidates, RX-3117 and RX-5902 is uncertain, we are 
unable to estimate the costs of completing our research and development programs, the timing of bringing 
such programs to market and, therefore, when material cash inflows could commence from the sale of these 
drug  candidates,  if  any. If  these  projects  are  not  completed  as  planned,  our  results  of  operations  and 
financial condition would be negatively affected.

RX-3117 

RX-3117 is a novel, investigational oral small molecule nucleoside compound.    We believe RX-
3117 has therapeutic potential in a broad range of cancers including pancreatic, bladder, lung, cervical, non-
small  cell  lung  cancer  and  colon  cancer.    Additional  information  about  RX-3117,  including  about the 
current Phase 2a clinical trials, can be found in Item 1 of this Annual Report. We expect that expenses 
related to RX-3117 will increase in 2018 compared to 2017 as we continue patient enrollment for clinical 
trials, including our Phase 2a clinical study of RX-3117 in combination with Abraxane® in patients newly 
diagnosed  with  metastatic  pancreatic  cancer,  which  began  in  November  2017,  as  well  as  for  continued 
manufacturing costs for new campaigns.

RX-5902 (Supinoxin)

RX-5902 is a potential first-in-class small molecule inhibitor of phosphorylated p68, a protein that 
we believe plays a key role in cancer growth, progression and metastasis. Phosphorylated p68 results in up-
regulation  of  cancer-related  genes  and  a  subsequent  proliferation  of  cancer  cells  and  tumor  growth.   
Additional information about RX-5902, including about the Phase 2a clinical trial in cancer patients with 
triple negative breast cancer can be found in Item 1 of this Annual Report.    We expect that expenses related 
to RX-5902 will increase in 2018 compared to 2017 as we continue our Phase 2a study in patients with 
triple negative breast cancer, and due to increased manufacturing costs for new campaigns.

RX-0201 (Archexin)

RX-0201 is a potential best-in-class, potent inhibitor of the protein kinase Akt-1, which we believe 

plays  a  critical  role  in  cancer  cell  proliferation,  survival,  angiogenesis,  metastasis  and  drug  resistance.   
Additional information about RX-0201, including about our research collaboration with Zhejiang Haichang 
Biotechnology Co., Ltd., can be found in Item 1 to this Annual Report.    We expect that expenses related 
to RX-0201 will decrease in 2018 compared to 2017 as we wind down our Phase 2a clinical trial of RX-
0201 in patients with metastatic renal cell carcinoma.

54

 
Pre-clinical Pipeline

We expect that expenses related to our pre-clinical pipeline, will remain flat in 2018 compared to 

2017 as we continue testing and development.

Research and Development Process

We have engaged third-party CROs and other investigators and collaborators, such as universities,
medical institutions and other life science companies, to conduct our pre-clinical studies, toxicology studies 
and clinical trials. Engaging third parties is typical practice in our industry. However, relying on such 
organizations means that the clinical trials and other studies described above are being conducted at external 
locations and the completion of these trials and studies is not within our direct control. Trials and studies 
may be delayed due to circumstances outside our control, and such delays may result in additional expenses 
for us.

Liquidity and Capital Resources

Cash Flows

The table below summarizes our net cash flow activity:

Net Cash Used in Operating Activities
Net Cash (Used In) Provided by Investing Activities
Net Cash Provided by Financing Activities
Net (Decrease) Increase in Cash and Cash Equivalents

For the Year Ended December 31,
2016
2017
$ (15,420,055)$ (13,227,101)$ (17,351,950)
9,554,394
8,170,751
373,195

(9,372,778)
22,113,514
(2,679,319)$

4,483,911
10,122,223

1,379,033 $

2015

$

Cash used in operating activities was approximately $15,420,000 for the year ended December 31, 
2017.    The operating cash flows during the year ended December 31, 2017 reflect a net loss of $25,295,000 
offset  by  an  unrealized  loss  on  the  fair  value  of  warrants  of  $7,594,000  and  a  net  increase  of  cash 
components  of  working  capital  and  non-cash  charges  totaling  $2,281,000.    Cash  used  in  operating 
activities  was  approximately  $13,227,000  for  the  year  ended  December  31,  2016.    The  operating  cash 
flows during the year ended December 31, 2016 reflect our net loss of $9,307,000, an unrealized gain on 
the fair value of warrants of $5,530,000 and a net increase of cash components of working capital and non-
cash charges totaling $1,610,000.    Cash used in operating activities was approximately $17,352,000 for 
the year ended December 31, 2015.    The operating cash flows during the year ended December 31, 2015 
reflect our net loss of $14,385,000, an unrealized gain on the fair value of warrants of $3,987,000 and a net
increase of cash components of working capital and non-cash charges totaling $1,020,000.       

Cash used in investing activities was approximately $9,373,000 for the year ended December 31, 
2017, which consisted of $21,018,000 and $75,000 for purchases of marketable securities and equipment, 
respectively,  offset  by  $11,720,000  from  the  redemption  of marketable  securities.    Cash  provided  by 
investing activities was approximately $4,484,000 for the year ended December 31, 2016, which consisted 
of  $13,240,000  from  the  redemption  of  marketable  securities,  offset  by  $8,747,000  and  $9,000  for  the 
purchases of marketable securities and equipment, respectively. Cash provided by investing activities was 
approximately $9,554,000 for the year ended December 31, 2015, which consisted of $17,525,000 from the 
redemption  of  marketable  securities,  offset  by  $7,909,000  and $62,000 for  the  purchases  of  marketable 
securities and equipment, respectively.

55

 
Cash provided by financing activities was approximately $22,114,000 for the year ended December 
31, 2017, which consisted of net proceeds of $16,682,000 from our registered direct public offerings in 
June 2017 and October 2017, and $5,354,000 and $78,000 from the exercise of stock warrants and options, 
respectively.    Cash provided by financing activities was approximately $10,122,000 for the year ended 
December 31, 2016 which consisted of net proceeds from our registered direct public offerings in March 
2016 and September 2016.    Cash provided by financing activities was approximately $8,171,000 for the 
year ended December 31, 2015, which consisted of net proceeds of $7,440,000 from our registered direct 
public  offering in  November  2015 and  sales  from  our  at  market  issuance  agreement,  and  proceeds  of 
$709,000 and $22,000 received from the exercise of stock options and stock warrants, respectively.   

Financings

On  November  12,  2015, we  closed  a  registered  direct  public  offering  of  1,666,667  shares  of 
common stock and warrants to purchase up to 1,250,000 shares of common stock.    The common stock 
and warrants were sold in units consisting of one share of common stock and a warrant to purchase 0.75 
shares of common stock at a price of $4.20 per unit, and the warrants have an exercise price of $5.30 per 
share.    The total gross proceeds of the offering were $7,000,000.    The warrants issued are exercisable 
beginning six months after the closing date until the five-year anniversary of the initial exercise date.

On March 2, 2016, we closed a registered direct public offering of 1,562,500 shares of common 
stock and warrants to purchase up to 1,171,875 shares of common stock.    The common stock and warrants 
were  sold  in  units  consisting  of  one  share  of  common  stock  and  a  warrant  to  purchase  0.75  shares  of 
common stock at a price of $3.20 per unit, and the warrants have an exercise price of $4.20 per share.    The 
total gross proceeds of the offering were $5,000,000.    The warrants are exercisable beginning six months 
after the closing date until the five-year anniversary of the initial exercise date.

On  September  19,  2016, we  closed  a  registered  direct  public  offering  of  2,400,000  shares  of
common stock and warrants to purchase up to 1,800,000 shares of common stock.    The common stock 
and warrants were sold in units consisting of one share of common stock and a warrant to purchase 0.75 
shares of common stock at a price of $2.50 per unit, and the warrants have an exercise price of $3.00 per 
share.    The total gross proceeds of the offering were $6,000,000.    The warrants are exercisable beginning 
six months after the closing date until the five-year anniversary of the initial exercise date.

On June 12, 2017, we closed a registered direct public offering of 3,030,304 shares of common 
stock and warrants to purchase up to 1,515,152 shares of common stock.    The common stock and warrants 
were sold in units consisting of one share of common stock and a warrant to purchase 0.5 shares of common 
stock at a price of $3.30 per unit, and the warrants have an exercise price of $4.00 per share.    The total 
gross proceeds of the offering were $10,000,003.    The warrants are exercisable beginning six months after 
the closing date until the five-year anniversary of the initial exercise date.

On October 17, 2017, we closed a registered direct public offering of 3,265,309 shares of common 
stock and warrants to purchase up to 1,632,654 shares of common stock.    The common stock and warrants 
were sold in units consisting of one share of common stock and a warrant to purchase 0.5 shares of common 
stock at a price of $2.45 per unit, and the warrants have an exercise price of $2.85 per share.    The total 
gross proceeds of the offering were $8,000,007.    The warrants are exercisable beginning six months after 
the closing date until the five-year anniversary of the initial exercise date.

We will need to raise additional capital through public or private equity or debt offerings or through 

arrangements with strategic partners or other sources in order to continue to develop our drug candidates.   
There can be no assurance that additional capital will be available when needed or on terms satisfactory to 
us, if at all. If we are not able to raise sufficient additional capital, we will have to reduce our research and 

56

 
development activities. We will first reduce research and development activities associated with our pre-
clinical compounds. To the extent necessary, we will then reduce our research and development activities 
related to some or all of our clinical drugs.

At Market Issuance Sales Agreement

On August 2, 2017, we terminated the at market issuance sales agreement, dated as of March 16, 
2015, with MLV & Co. LLC, now part of FBR & Co. (“MLV”), pursuant to which we were entitled to 
issue and sell shares of our common stock having an aggregate offering price of up to $40 million from 
time to time, at our option, through MLV as our sales agent.    For the year ended December 31, 2015, we
sold 140,707 shares of common stock pursuant to the sales agreement for $1,042,573 in gross proceeds.
There were no sales under the sales agreement in 2016 or 2017.   

Contractual Obligations   

The following table summarizes our contractual obligations as of December 31, 2017:

(cid:3)

Operating Leases

(cid:3)

(cid:3)

$

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)

Total
489,822 $

Less than 1 
year
279,274 $

1 -3 Years

3-5 Years

More than 5 
years

210,548 $

- $

-

We also have obligations under various license agreements that become due and payable on the 
achievement of certain development, regulatory, or commercial milestones.    We have not included these 
commitments on our balance sheet or in the above table of contractual obligations because the achievement 
and timing of these events is neither fixed nor determinable.

We have contracted with various vendors for research and development services, the terms of which 
require payments over the term of the agreements, usually ranging from two to 36 months. The costs to be 
incurred are estimated and are subject to revision. As of December 31, 2017, the total estimated cost to 
complete these agreements was approximately $11,110,000. All of these agreements may be terminated 
by either party upon appropriate notice as stipulated in the respective agreements, and therefore, are not 
included in the above table of contractual obligations.

Current and Future Financing Needs

We  have  incurred  negative  cash  flow  from  operations  since  we  started  our  business. We  have 
spent, and expect to continue to spend, substantial amounts in connection with implementing our business 
strategy,  including  our  planned  product  development  efforts,  our  clinical  trials  and  our  research  and 
development  efforts. We  will  need  to  raise  additional  capital  through  public  or  private  equity  or  debt 
offerings or through arrangements with strategic partners or other sources in order to continue to develop 
our drug candidates.    There can be no assurance that additional capital will be available when needed or 
on terms satisfactory to us, if at all.    If we are not able to raise sufficient additional capital, we will have 
to reduce our research and development activities. We believe our cash, cash equivalents, and marketable 
securities will be sufficient to cover our cash flow requirements for our current activities for at least the 
next 12 months from the date our financial statements are issued.

57

 
The actual amount of funds we will need to operate is subject to many factors, some of which are 

beyond our control.    These factors include the following:

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

(cid:120)

the progress of our product development activities;

the number and scope of our product development programs;

the progress of our pre-clinical and clinical trial activities;

the  progress  of  the  development  efforts  of  parties  with  whom  we  have  entered  into 
collaboration agreements;

our ability to maintain current collaboration programs and to establish new collaboration 
arrangements;

the  costs  involved  in  prosecuting  and  enforcing  patent  claims  and  other  intellectual 
property rights; and

the costs and timing of regulatory approvals.

Off-Balance Sheet Arrangements

We do not have any off-balance sheet arrangements or holdings in variable interest entities.

58

 
Item 7A.    Quantitative and Qualitative Disclosures About Market Risk.

For the year ended December 31, 2017, we are exposed to the following market risks:

Interest Rate Risk

We invest our cash in a variety of financial instruments.    At December 31, 2017, our cash and 
cash equivalents were invested primarily in short term bank deposits and municipal obligations, all of which 
were denominated in U.S. dollars.    Due to the conservative nature of these investments, which primarily 
bear interest at fixed rates, we do not believe we have material exposure to interest rate risk.   

Foreign Currency Risk

We are exposed to risks associated with foreign currency transactions on contracts with vendors 
associated outside of the United States.    Accordingly changes in the value of the U.S. dollar, relative to 
other currencies, may have an impact on our financial statements and earnings.    The number and dollar 
amount of contracts denominated in foreign currency is immaterial; therefore, we believe we do not have 
material exposure to foreign currency risk.         

Item 8.    Financial Statements and Supplementary Data.

Our financial statements and the Report of the Independent Registered Public Accounting Firm 

thereon filed pursuant to this Item 8 and are included in this Annual Report beginning on page F-1.

59

 
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. Under  the  supervision  and  with  the 
participation of our management, including our Chief Executive Officer and Chief Financial Officer, we 
evaluated the effectiveness of the design and operation of our disclosure controls and procedures (as defined 
in Rule 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. 
Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our 
disclosure controls and procedures as of the end of the period covered by this report were effective such 
that the information required to be disclosed by us in reports filed under the Exchange Act is (i) recorded, 
processed, summarized and reported within the time periods specified in the SEC’s rules and forms and 
(ii) accumulated and communicated to our management, including our Chief Executive Officer and Chief 
Financial Officer, as appropriate to allow timely decisions regarding disclosure. A controls system cannot 
provide absolute assurance, however, that the objectives of the controls system are met, and no evaluation 
of controls can provide absolute assurance that all control issues and instances of fraud, if any, within a 
company have been detected.

Changes  in  Internal  Control  Over  Financial  Reporting.    During  the  most  recent quarter  ended 
December 31, 2017, there has been no change in our internal control over financial reporting (as defined in 
Rule 13a-15(f) and 15d-15(f) under the Exchange Act)  that has materially affected, or is reasonably likely 
to materially affect, our internal control over financial reporting.
(cid:3)

60

 
MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

Our  management  is  responsible  for  establishing  and  maintaining  adequate  internal  control  over 
financial  reporting  (as  defined  in  Rule 13a-15(f)  under  the  Exchange  Act).    Our  internal  control over 
financial  reporting  is  a  process  designed  to  provide  reasonable  assurance  regarding  the  reliability  of 
financial reporting and the preparation of financial statements for external purposes in accordance with U.S. 
generally accepted accounting principles and includes those policies and procedures that:   

(cid:120)

(cid:120)

(cid:120)

pertain to the maintenance of records that, in reasonable detail, accurately and fairly 
reflect the transactions and the dispositions of our assets;

provide reasonable assurance that transactions are recorded as necessary to permit 
preparation of financial statements in accordance with generally accepted accounting 
principles, and that our receipts and expenditures are being made only in accordance 
with authorization of our management and the board of directors; and

provide  reasonable  assurance  regarding  prevention  or  timely  detection  of 
unauthorized acquisition, use, or disposition of our assets that could have a material 
effect on the financial statements.   

Because of its inherent limitations, internal control over financial reporting may not prevent or detect 
misstatements.    Also, projections of any evaluations of effectiveness to future periods are subject to risk 
that controls may become inadequate because of changes in conditions or because of declines in the degree 
of compliance with the policies or procedures.   

Our management, with the participation of the Chief Executive Officer and Chief Financial Officer, 
assessed  the  effectiveness  of  our  internal  control  over  financial  reporting  as  of  December 31,  2017.    In 
making  this  assessment,  our  management  used  the  criteria  set  forth  by  the  Committee  of  Sponsoring 
Organizations of the Treadway Commission in the Internal Control-Integrated Framework (2013).

Based on this evaluation, our management, with the participation of the Chief Executive Officer and 
Chief  Financial  Officer,  concluded  that,  as  of  December  31,  2017, our  internal  control  over  financial 
reporting was effective.   

Management’s assessment of the effectiveness of our internal control over financial reporting has 
been  audited  by  Baker  Tilly Virchow  Krause,  LLP,  an  independent  registered  public  accounting  firm.   
Baker Tilly Virchow Krause, LLP has issued an attestation report on the effectiveness of our internal control
over financial reporting, which appears in Item 8 of this Annual Report.

61

 
Item 9B.    Other Information.

None.

62

 
Item 10.    Directors, Executive Officers and Corporate Governance.

PART III

The information required by this Item is set forth in our 2018 Proxy Statement to be filed with the 

SEC within 120 days of December 31, 2017 and is incorporated into this Annual Report by reference.

Item 11.    Executive Compensation.

The information required by this Item is set forth in our 2018 Proxy Statement to be filed with the 

SEC within 120 days of December 31, 2017 and is incorporated into this Annual Report by reference.

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

The information required by this Item is set forth in our 2018 Proxy Statement to be filed with the 

SEC within 120 days of December 31, 2017 and is incorporated into this Annual Report by reference.

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

The information required by this Item is set forth in our 2018 Proxy Statement to be filed with the 

SEC within 120 days of December 31, 2017 and is incorporated into this Annual Report by reference.

Item 14.    Principal Accounting Fees and Services.

The information required by this Item is set forth in our 2018 Proxy Statement to be filed with the 

SEC within 120 days of December 31, 2017 and is incorporated into this Annual Report by reference.

63

 
Item 15.    Exhibits, Financial Statement Schedules.

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

(1) The following documents are filed as a part of this Annual Report:

Report of Baker Tilly Virchow Krause, LLP

Balance Sheet as of December 31, 2017 and December 31, 2016

Statement of Operations for the year ended December 31, 2017, 2016 and 2015

F-1

F-3

F-4

Statement of Comprehensive Loss for the year ended December 31, 2017, 2016 and 2015         F-5

Statement of Stockholders’ Equity for the year ended December 31, 2017, 2016 and 2015

F-6

Statement of Cash Flows for the year ended December 31, 2017, 2016 and 2015

Notes to the Financial Statements

F-7

F-8

(2) All financial statement schedules have been omitted because they are not applicable or not 
required or because the information is included elsewhere in the financial statements or the 
Notes thereto.

(3) See the accompanying Index to Exhibits filed as a part of this Annual Report, which list is 

incorporated by reference in this Item.

(b) See the accompanying Index to Exhibits filed as a part of this Annual Report.

(c) Other schedules are not applicable.

Item 16. Form 10-K Summary.

None.

64

 
3.1

3.2

3.3

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

INDEX TO EXHIBITS

Amended and Restated Certificate of Incorporation, filed as Appendix G to the Company’s 
Definitive Proxy Statement on Schedule 14A (File No. 000-50590) dated April 29, 2005, is 
incorporated herein by reference. 

Certificate of Amendment of Amended and Restated Certificate of Incorporation, filed as 
Exhibit 3.1 to the Company’s Current Report on Form 8-K, filed May 5, 2017, is 
incorporated herein by reference. 

Amended and Restated Bylaws, as amended, through March 21, 2014, filed as Exhibit 3.2 
to the Company’s Annual Report on Form 10-K on March 21, 2014, is incorporated herein 
by reference.

Specimen Certificate for the Company’s Common Stock, par value $.0001 per share, filed 
as Exhibit 4.3 to the Company’s Registration Statement on Form S-8 (File No. 333-129294)
dated October 28, 2005, is incorporated herein by reference.

Form of Warrant for the Company’s Common Stock Purchase Warrants, filed as Exhibit 4.1 
to the Company’s Current Report on Form 8-K filed on July 24, 2013, is incorporated 
herein by reference.

Form of Warrant for the Company’s Common Stock Purchase Warrants, filed as Exhibit 4.1 
to the Company’s Current Report on Form 8-K filed on October 16, 2013, is incorporated 
herein by reference.

Form of Warrant for the Company’s Common Stock Purchase Warrants, filed as Exhibit 4.1 
to the Company’s Current Report on Form 8-K filed on January 15, 2014, is incorporated 
herein by reference. 

Form of Warrant for the Company’s Common Stock Purchase Warrants, filed as Exhibit 4.1 
to the Company’s Current Report on Form 8-K filed on November 6, 2015, is incorporated 
herein by reference.

Form of Warrant for the Company’s Common Stock Purchase Warrants, filed as Exhibit 4.1 
to the Company’s Current Report on Form 8-K filed on February 26, 2016, is incorporated 
herein by reference.

Form of Warrant for the Company’s Common Stock Purchase Warrants, filed as Exhibit 4.1 
to the Company’s Current Report on Form 8-K filed on September 14, 2016, is incorporated 
herein by reference.

Form of Warrant for the Company’s Common Stock Purchase Warrants, filed as Exhibit 4.1 
to the Company’s Current Report on Form 8-K filed on June 7, 2017, is incorporated herein 
by reference.

Form of Warrant for the Company’s Common Stock Purchase Warrants, filed as Exhibit 4.1 
to the Company’s Current Report on Form 8-K filed on October 13, 2017, is incorporated 
herein by reference.

*10.1

*10.2

Rexahn Pharmaceuticals, Inc. Stock Option Plan, as amended, filed as Exhibit 4.4 to the 
Company’s Registration Statement on Form S-8 (File No. 333-129294) dated October 28, 
2005, is incorporated herein by reference.

Form of Stock Option Grant Agreement for Employees, filed as Exhibit 4.5.1 to the 
Company’s Registration Statement on Form S-8 (File No. 333-129294) dated October 28, 
2005, is incorporated herein by reference.

65

 
*10.3

*10.4

*10.5

*10.6

*10.7

*10.8

*10.9

*10.10

*10.11

*10.12

*10.13

10.14

10.15

Form of Stock Option Grant Agreement for Non-Employee Directors and Consultants, filed 
as Exhibit 4.5.2 to the Company’s Registration Statement on Form S-8 (File No. 333-
129294) dated October 28, 2005, is incorporated herein by reference.

Rexahn Pharmaceuticals, Inc. 2013 Stock Option Plan, as amended and restated, filed as 
Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on June 10, 2016, is 
incorporated herein by reference.

First Amendment to the Rexahn Pharmaceuticals, Inc. 2013 Stock Option Plan, as amended 
and restated as of June 9, 2016, filed as Exhibit 10.1 to the Company’s Current Report on 
Form 8-K filed on April 13, 2017, is incorporated herein by reference.

Form of Stock Option Grant Agreement under Rexahn Pharmaceuticals, Inc. 2013 Stock 
Option Plan filed as Exhibit 10.5 to the Company’s Annual Report on Form 10-K for the 
year ended December 31, 2015, filed on March 14, 2016, is incorporated herein by 
reference.

Employment Agreement, dated as of September 9, 2010, by and between Rexahn 
Pharmaceuticals, Inc. and T. H. Jeong, filed as Exhibit 10.3 to the Company’s Current 
Report on Form 8-K filed on September 10, 2010, is incorporated herein by reference.

Separation, Transition and General Release Agreement, dated as of December 11, 2017, by 
and between Rexahn Pharmaceuticals, Inc. and Tae Heum (Ted) Jeong.

Employment Agreement, dated as of February 4, 2013, by and between Rexahn 
Pharmaceuticals, Inc. and Peter Suzdak, filed as Exhibit 10.1 to the Company’s Current 
Report on Form 8-K filed on January 22, 2013, is incorporated herein by reference.

Employment Agreement, dated as of February 2, 2015, by and between Rexahn 
Pharmaceuticals, Inc. and Ely Benaim, M.D., filed as Exhibit 10.1 to the Company’s 
Current Report on Form 10-Q filed on May 8, 2015, is incorporated herein by reference.

Bonus Letter Agreement, dated as of August 2, 2016, by and between Rexahn 
Pharmaceuticals, Inc. and Ely Benaim, M.D., filed as Exhibit 10.2 to the Company’s 
Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2016, is 
incorporated herein by reference.

Employment Agreement, dated as of July 6, 2016, by and between Rexahn Pharmaceuticals, 
Inc. and Lisa Nolan, Ph.D., filed as Exhibit 10.2 to the Company’s Quarterly Report on 
Form 10-Q for the quarterly period ended September 30, 2016, is incorporated herein by 
reference.

Employment Agreement, dated as of January 2, 2018, by and between Rexahn
Pharmaceuticals, Inc. and Douglas Swirsky, filed as Exhibit 10.1 to the Company’s Current 
Report on Form 8-K filed January 4, 2018 is incorporated herein by reference.

Lease Agreement, dated June 5, 2009, by and between Rexahn Pharmaceuticals, Inc. and 
The Realty Associates Fund V, L.P., filed as Exhibit 10.4 to the Company’s Quarterly 
Report on Form 10-Q for the quarterly period ended June 30, 2009, is incorporated herein 
by reference.

First Amendment to Lease Agreement, dated as of June 7, 2013, by and between Rexahn 
Pharmaceuticals, Inc. and SG Plaza Holdings, LLC, filed as Exhibit 10.1 to the Company’s 
Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2013, is 
incorporated herein by reference.

66

 
10.16

10.17

10.18

10.19

10.20

10.21

10.22

10.23

10.24

10.25

10.26

Second Amendment to Lease Agreement, dated as of July 26, 2014, by and between 
Rexahn Pharmaceuticals, Inc. and SG Plaza Holdings, LLC, filed as Exhibit 10.1 to the 
Company’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 
2014, is incorporated herein by reference.

Third Amendment to Lease Agreement, dated as of May 6, 2015, by and between Rexahn 
Pharmaceuticals, Inc. and SG Plaza Holdings, LLC, filed as Exhibit 10.1 to the Company’s 
Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2015, is 
incorporated herein by reference.

Fourth Amendment to Lease Agreement, dated as of April 4, 2016, by and between Rexahn 
Pharmaceuticals, Inc. and SG Plaza Holdings, LLC, filed as Exhibit 10.1 to the Company’s 
Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2016, is 
incorporated herein by reference.

Fifth Amendment to Lease Agreement, dated as of April 13, 2017, by and between Rexahn
Pharmaceuticals, Inc. and SG Plaza Holdings, LLC, filed as Exhibit 10.2 to the Company’s 
Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2017, is 
incorporated herein by reference.

Form of Securities Purchase Agreement, dated as of July 23, 2013, by and between Rexahn 
Pharmaceuticals, Inc. and the purchasers identified on the signature pages thereto, filed as 
Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on July 24, 2013, is 
incorporated herein by reference.

Form of Securities Purchase Agreement, dated as of October 10, 2013, by and between 
Rexahn Pharmaceuticals, Inc. and the purchasers identified on the signature pages thereto, 
filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on October 16, 
2013, is incorporated herein by reference.

Form of Securities Purchase Agreement, dated as of January 15, 2014, by and between 
Rexahn Pharmaceuticals, Inc. and the purchasers identified on the signature pages thereto, 
filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on January 15,
2014, is incorporated herein by reference.

Form of Securities Purchase Agreement, dated as of November 6, 2015, by and between 
Rexahn Pharmaceuticals, Inc. and the purchasers identified on the signature pages thereto, 
filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on November 6, 
2015, is incorporated herein by reference.

Form of Securities Purchase Agreement, dated as of February 26, 2016, by and between 
Rexahn Pharmaceuticals, Inc. and the purchasers identified on the signature pages thereto, 
filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on February 26, 
2016, is incorporated herein by reference.

Form of Securities Purchase Agreement, dated as of September 14, 2016, by and between 
Rexahn Pharmaceuticals, Inc. and the purchasers identified on the signature pages thereto, 
filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on September 14, 
2016, is incorporated herein by reference.

Form of Securities Purchase Agreement, dated as of June 6, 2017, by and between Rexahn
Pharmaceuticals, Inc. and the purchasers identified on the signature pages thereto, filed as 
Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on June 7, 2017, is 
incorporated herein by reference.

67

 
10.27

12.1

23.1

24.1

31.1

31.2

32.1

32.2

Form of Securities Purchase Agreement, dated as of October 13, 2017, by and between 
Rexahn Pharmaceuticals, Inc. and the purchasers identified on the signature pages thereto, 
filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on October 13, 
2017, is incorporated herein by reference.

Statement Regarding the Computation of Ratio of Earnings to Combined Fixed Charges and 
Preferred Stock Dividends

Consent of Baker Tilly Virchow Krause, LLP, independent registered public accounting 
firm   

Power of Attorney

Certification of Chief Executive Officer Pursuant to Rule 13a-14(a) or Rule 15d-14(a)

Certification of Chief Financial Officer Pursuant to Rule 13a-14(a) or Rule 15d-14(a)

Certification of Chief Executive Officer of Periodic Report Pursuant to 18 U.S.C. 
Section 1350

Certification of Chief Financial Officer of Periodic Report Pursuant to 18 U.S.C. 
Section 1350

101.INS

XBRL Instance Document

101.SCH

XBRL Taxonomy Extension Schema

101.CAL

XBRL Taxonomy Calculation Linkbase

101.DEF

XBRL Taxonomy Definition Linkbase

101.LAB

XBRL Taxonomy Label Linkbase

101.PRE

XBRL Taxonomy Presentation Linkbase

*Indicates management contract or compensatory plan or arrangement

68

 
SIGNATURES

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

REXAHN PHARMACEUTICALS, INC.

By:    /s/ Douglas J. Swirsky
Douglas J. Swirsky
Chief Financial Officer and President

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

Name

Title

/s/ Peter D. Suzdak*
Peter Suzdak

/s/ Douglas J. Swirsky
Douglas J. Swirsky

/s/ Peter Brandt*
Peter Brandt

/s/ Charles Beever*
Charles Beever

/s/ Kwang Soo Cheong*
Kwang Soo Cheong

/s/ Mark Carthy*
Mark Carthy

/s/ Richard J. Rodgers*
Richard J. Rodgers

Chief Executive Officer and 
Director (Principal Executive 
Officer)

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

Date

March 9, 2018

March 9, 2018

Chairman

March 9, 2018

Director

Director

Director

Director

March 9, 2018

March 9, 2018

March 9, 2018

March 9, 2018

* By: /s/ Douglas J. Swirsky, Attorney-in Fact

Douglas J. Swirsky, Attorney-in-Fact**

** By authority of the power of attorney filed as Exhibit 24.1 hereto

69

 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the stockholders and the board of directors of Rexahn Pharmaceuticals, Inc.:

Opinions on the Financial Statements and Internal Control over Financial Reporting

We  have  audited  the  accompanying  balance  sheet  of  Rexahn Pharmaceuticals,  Inc.  (the  "Company")  as  of 
December 31, 2017 and 2016, the related statements of operations, comprehensive loss, stockholders’ equity 
and  cash  flows,  for  each  of  the  three  years  in  the  period  ended  December  31,  2017,  and  the  related  notes
(collectively referred to as the "financial statements"). We also have audited the Company’s internal control 
over financial reporting as of December 31, 2017, based on criteria established in Internal Control –Integrated 
Framework:  (2013) issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission 
(COSO).

In  our  opinion,  the  financial  statements  present  fairly,  in  all  material  respects,  the  financial  position  of  the 
Company as of December 31, 2017 and 2016, and the results of its operations and its cash flows for each of the 
three years in the period ended December 31, 2017, in conformity with accounting principles generally accepted 
in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective 
internal  control  over  financial  reporting  as  of  December  31,  2017,  based  on  criteria  established  in Internal 
Control – Integrated Framework: (2013) issued by COSO.

Basis for Opinions

The Company’s management is responsible for these financial statements, for maintaining effective internal 
control over financial reporting, and for its assessment of the effectiveness of internal control over financial 
reporting, included in the accompanying Management’s Report on Internal Control over Financial Reporting. 
Our  responsibility  is  to  express  an  opinion  on  the  Company's  financial  statements  and  an  opinion  on  the 
Company’s  internal  control  over  financial  reporting  based  on  our  audits.  We  are  a  public  accounting  firm 
registered with the Public Company Accounting Oversight Board (United States) ("PCAOB") and are required 
to  be  independent  with  respect  to  the Company  in accordance  with  the  U.S.  federal  securities  laws  and  the 
applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan 
and perform the audits to obtain reasonable assurance about whether the financial statements are free of material 
misstatement, whether due to error or fraud and whether effective internal control over financial reporting was 
maintained in all material respects. 

Our  audits  of  the  financial  statements  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. Our audit of internal control over financial reporting included obtaining an understanding of internal 
control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating 
the design and operating effectiveness of internal control based on the assessed risk. Our audits also included 
performing such other procedures as we considered necessary in the circumstances. We believe that our audits 
provide a reasonable basis for our opinions.

F-1

 
Definition and Limitations of Internal Control Over Financial Reporting

A company's internal control over financial reporting is a process designed 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.  A  company's  internal  control  over  financial 
reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable 
detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide 
reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements 
in accordance with generally accepted accounting principles, and that receipts and expenditures of the company 
are being made only in accordance with authorizations of management and directors of the company; and (3) 
provide  reasonable  assurance  regarding  prevention  or  timely  detection  of  unauthorized  acquisition,  use,  or 
disposition of the company's assets that could have a material effect on the financial statements.

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect 
misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that 
controls may become inadequate because of changes in conditions, or that the degree of compliance with the 
policies or procedures may deteriorate.

/s/ Baker Tilly Virchow Krause, LLP

We are uncertain as to the year we (or our predecessor firms) began serving consecutively as the auditor of the 
Company’s financial statements; however, we are aware that we (or our predecessor firms) have been have 
been the Company’s auditor consecutively since at least 2003.

Wyomissing, Pennsylvania 
March 9, 2018

F-2

 
REXAHN PHARMACEUTICALS, INC.
Balance Sheet

Current Assets:

Cash and cash equivalents
Marketable securities
Prepaid expenses and other current assets

Total Current Assets
Security Deposits
Equipment, Net
Total Assets

Current Liabilities:

December 31, 2017 December 31, 2016

ASSETS

$

$

8,899,154
17,931,941
1,304,541
28,135,636
30,785
121,460
28,287,881

$

$

$

11,578,473
8,737,107
608,517
20,924,097
30,785
88,650
21,043,532

1,882,500

LIABILITIES AND STOCKHOLDERS’ EQUITY

Accounts payable and accrued expenses

$

3,233,926

Deferred Research and Development Arrangement

375,000

450,000

Other Liabilities

Warrant Liabilities

Total Liabilities 
Commitments and Contingencies (note 15)
Stockholders’ Equity:

56,724

79,204

7,853,635

1,573,366

11,519,285

3,985,070

Preferred stock, par value $0.0001, 10,000,000 authorized   
      shares, none issued and outstanding
Common stock, par value $0.0001, 50,000,000 authorized 
shares, 31,725,114 and 23,736,878 issued and outstanding
Additional paid-in capital
Accumulated other comprehensive loss
Accumulated deficit

(cid:3)

(cid:3)

-

(cid:3)

(cid:3)

3,173
157,141,021
(56,886)
(140,318,712)

-

2,374
132,086,419
(6,122)
(115,024,209)

Total Stockholders’ Equity

16,768,596

17,058,462

Total Liabilities and Stockholders’ Equity 

$

28,287,881

$

21,043,532

(See accompanying notes to the financial statements)
F-3

 
REXAHN PHARMACEUTICALS, INC.
Statement of Operations

For the Year Ended December 31, 
2016

2015

2017

Revenues:

Expenses:

$

- $

-$

-

General and administrative
Research and development

6,639,421
10,715,296

6,324,236
10,089,149

6,115,210
12,148,226

Total Expenses

17,354,717

16,413,385

18,263,436

Loss from Operations

(17,354,717)

(16,413,385)

(18,263,436)

Other Income (Expense) 

Interest income
Mediation settlement
Unrealized (loss) gain on fair value of warrants
Financing expense

Total Other Income (Expense) 

207,003
-
(7,594,162)
(552,627)
(7,939,786)

118,565
1,770,658
5,529,907
(313,090)
7,106,040

103,269
-
3,986,727
(211,116)
3,878,880

Net Loss Before Provision for Income Taxes
Provision for income taxes

Net Loss

Net loss per share, basic and diluted

(25,294,503)
-

(25,294,503) $
(cid:3)
(0.92) $

(cid:3)

$
(cid:3)
$

(9,307,345)
-

(9,307,345)$
(cid:3) (cid:3)
(0.43)$

(14,384,556)
-
(14,384,556)
(cid:3)
(0.79)

Weighted average number of shares outstanding, 
basic and diluted

27,390,527

21,744,740

18,238,822

(See accompanying notes to the financial statements)
F-4

 
REXAHN PHARMACEUTICALS, INC.
Statement of Comprehensive Loss

For the Year Ended December 31, 

2017

2016

2015

Net Loss

$

(25,294,503)$

(9,307,345)$

(14,384,556)

Unrealized (loss) gain on available-for-sale 
securities

Comprehensive Loss

(50,764)

11,919

15,606

$
(cid:3)

(cid:3)

(25,345,267)$
(cid:3)

(cid:3)

(9,295,426)$
(cid:3)

(cid:3)

(14,368,950)

(See accompanying notes to the financial statements)
F-5

 
REXAHN PHARMACEUTICALS, INC.
Statement of Stockholders’ Equity
For the Year Ended December 31, 2017, 2016 and 2015

Balances at January 1, 
2015

Issuance of common 
stock and units

Stock issuance costs
Common stock issued 
in exchange for 
services
Stock options exercised

Stock warrants 
exercised
Stock-based 
compensation
Retirement of treasury 
stock

Net loss

Other comprehensive 
income

Balances at 
December 31, 2015

Issuance of common 
stock and units
Stock issuance costs

Common stock issued 
in exchange for 
services
Stock-based 
compensation
Net loss

Other comprehensive 
income

Balances at 
December 31, 2016

Issuance of common 
stock and units
Stock issuance costs
Common stock issued 
in exchange for 
services
Stock-based 
compensation
Stock options exercised

Stock warrants 
exercised

Net loss

Other comprehensive 
loss

Balances at 
December 31, 2017

Common Stock

Treasury Stock

Number of 
Shares

Amount

Additional 
Paid-in
Capital

Accumulated 
Deficit

Number 
of Shares

Amount

Accumulated 
Other 
Comprehensive 
Loss

Total 
Stockholders' 
Equity

17,836,652 $

1,784 $ 118,073,072 $ (91,332,308)

11,321 $ (128,410)$

(33,647)$

26,580,491

1,807,374
-

181
-

5,249,892
(566,065)

101,998
708,608

31,703

1,037,679

15,000
88,943

4,730

-

(11,321)
-

-

2
9

-

-

(1)
-

-

-
-

-
-

-

-

-
-

-
-

-

-

-
-

-
-

-

-

-
-

-
-

-

-

-
-

5,250,073
(566,065)

102,000
708,617

31,703

1,037,679

-
(14,384,556)

(128,409)
-

-
(14,384,556)

(11,321)
-

128,410
-

-

-

-
-

-

-
-

-

-
-

19,741,378 $

1,975 $ 124,508,478 $ (105,716,864)

3,962,500
-

396
-

6,908,562
(837,755)

33,000

-
-

-

3

-
-

-

97,646

1,409,488
-

-
(9,307,345)

-

-

-

-$

-
-

-

-
-

-

-

-$

-
-

-

-
-

-

15,606

15,606

(18,041)$

18,775,548

-
-

-

-
-

6,908,958
(837,755)

97,649

1,409,488
(9,307,345)

11,919

11,919

23,736,878 $

2,374 $ 132,086,419 $ (115,024,209)

-$

-$

(6,122)$

17,058,462

6,295,613
-

630
-

11,965,753
(1,470,536)

15,000

-
25,000

1,652,623
-

-

2

-
2

165
-

-

31,198

1,044,167
77,498

13,406,522
-

-
(25,294,503)

-

-

-
-

-

-
-

-
-

-

-
-

-

-
-

-
-

-

-
-

-

-
-

-
-

11,966,383
(1,470,536)

31,200

1,044,167
77,500

13,406,687
(25,294,503)

(50,764)

(50,764)

31,725,114$

3,173$ 157,141,021$ (140,318,712)

-$

-$

(56,886)$

16,768,596

(See accompanying notes to the financial statements)
F-6

 
REXAHN PHARMACEUTICALS, INC.
Statement of Cash Flows

Cash Flows from Operating Activities:

Net loss

Adjustments to reconcile net loss to net cash used in operating 
activities:
Compensatory stock

Depreciation and amortization
Amortization of premiums and discounts on marketable 
securities, net
Stock-based compensation

Amortization of deferred research and development arrangement

Unrealized loss (gain) on fair value of warrants

Financing expense

Amortization of deferred lease incentive

Deferred lease expenses

Changes in assets and liabilities:

Prepaid expenses and other assets

Accounts payable and accrued expenses

Net Cash Used in Operating Activities

Cash Flows from Investing Activities:

Purchase of equipment

Purchase of marketable securities

Redemption of marketable securities

Net Cash (Used in) Provided by Investing Activities

Cash Flows from Financing Activities:

Issuance of common stock and units, net of issuance costs

Proceeds from exercise of stock warrants

Proceeds from exercise of stock options

Net Cash Provided by Financing Activities

Net (Decrease) Increase in Cash and Cash Equivalents

Cash and Cash Equivalents – beginning of period

Cash and Cash Equivalents - end of period

Supplemental Cash Flow Information

Non-cash financing and investing activities:

Warrants issued

Warrant liability extinguishment from exercise of warrants

Retirement of treasury stock

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)

For the Year Ended December 31, 
2015
2016
2017

$

(25,294,503)$

(9,307,345)$

(14,384,556)

31,200

42,358

52,012

1,044,167

(75,000)

7,594,162

552,627

(12,444)

(10,036)

(696,024)

1,351,426

97,649

32,916

22,321

102,000

27,498

30,875

1,409,488

(75,000)

1,037,679

(75,000)

(5,529,907)

(3,986,727)

313,090

(12,443)

(12,373)

211,116

(12,443)

(8,492)

613,301

(778,798)

(495,935)

202,035

(15,420,055)

(13,227,101)

(17,351,950)

(75,168)

(21,017,610)

11,720,000

(9,372,778)

16,681,921

5,354,093

77,500

22,113,514

(2,679,319)

11,578,473

(8,666)

(8,747,423)

13,240,000

4,483,911

(62,302)

(7,908,304)

17,525,000

9,554,394

10,122,223

7,439,809

-

-

10,122,223

1,379,033

10,199,440

22,325

708,617

8,170,751

373,195

9,826,245

$

(cid:3)

(cid:3)
$

$

$

(cid:3)
(cid:3)

8,899,154 $

11,578,473 $

10,199,440

(cid:3)

(cid:3)

(cid:3)
6,738,701$

8,052,594 $

-$

(cid:3)
4,364,110 $

-$

-$

2,966,917

9,378

128,410

(See accompanying notes to the financial statements)
F-7

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

1. Operations and Organization

Operations

Rexahn  Pharmaceuticals,  Inc.  (the  “Company”),  a  Delaware  corporation,  is  a  biopharmaceutical 
company whose principal operations are the discovery and development of innovative treatments for 
cancer.    The  Company  had  an  accumulated  deficit  of  $140,318,712 at  December  31,  2017 and 
anticipates  incurring losses  through  fiscal  year  2018 and  beyond.    The  Company  has  not  yet 
generated commercial revenues and has funded its operating losses to date through the sale of shares 
of  its  common  stock  and  warrants  to  purchase  shares  of  its  common  stock,  convertible  debt, 
financings, interest income from cash, cash equivalents and marketable securities, and proceeds from 
reimbursed research and development costs.    The Company believes that its cash, cash equivalents, 
and marketable securities, will be sufficient to cover its cash flow requirements for its current activities 
at least for the next 12 months from the date these financial statements were issued.    Management 
believes it has the capability of managing the Company’s operations within existing cash available by
focusing on select research and development activities, selecting projects in conjunction with potential 
financings and milestones, and efficiently managing its general and administrative affairs.

2. Summary of Significant Accounting Policies

a) Cash and Cash Equivalents

Cash  and  cash  equivalents  include  cash  on  hand  and  short-term  investments  purchased  with 
remaining maturities of three months or less at acquisition.

b) Marketable Securities

Marketable securities are considered “available-for-sale” in accordance with Financial Statement 
Accounting Board (“FASB”) Accounting Standards Codification (“ASC”) 320, “Debt and Equity 
Securities,” and thus are reported at fair value in the Company’s accompanying balance sheet, with 
unrealized  gains  and  losses  excluded  from  earnings  and  reported  as  a  separate  component  of 
stockholders’  equity.    Amounts  reclassified  out  of  accumulated  other  comprehensive  loss into 
realized gains and losses are accounted for on the basis of specific identification and are included 
in  other  income  or  expense  in  the  statement  of  operations.    The  Company  classifies  such 
investments as current on the balance sheet as the investments are readily marketable and available 
for use in the Company’s current operations.   

c) Equipment

Equipment is stated at cost less accumulated depreciation. Depreciation, based on the lesser of the 
term of the lease or the estimated useful life of the assets, is provided as follows:

Life Depreciation Method

Furniture and fixtures
Office equipment
Lab equipment
Computer equipment
Leasehold improvements

7 years
5 years
5-7 years
3-5 years
3-5 years

straight line
straight line
straight line
straight line
straight line

F-8

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

d) Research and Development 

Research and development costs are expensed as incurred.    Research and development expenses 
consist primarily of third party service costs under research and development agreements, salaries 
and related personnel costs, including stock-based compensation, costs to acquire pharmaceutical 
products and product rights for development and amounts paid to contract research organizations, 
hospitals  and  laboratories  for  the  provision  of  services  and  materials  for  drug  development  and 
clinical trials.

Costs incurred in obtaining the licensing rights to technology in the research and development stage 
that have no alternative future uses and are for unapproved product compounds are expensed as 
incurred.

e) Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted 
in the United States of America requires management to make estimates and assumptions that affect 
the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities 
at the date of the financial statements and the reported amounts of revenues and expenses during 
the  reporting  period.    These  estimates  are  based  on  management’s  best  knowledge  of  current 
events and actions the Company may undertake in the future.    Actual results may ultimately differ 
from  these  estimates.    These  estimates  are  reviewed  periodically  and  as  adjustments  become 
necessary, they are reported in earnings in the period in which they become available.

f) Fair Value of Financial Instruments

The  carrying  amounts  reported  in  the  accompanying  financial  statements  for  cash  and  cash 
equivalents and accounts  payable  and  accrued  expenses  approximate  fair  value  because  of  the 
short-term maturity of these financial instruments.    The fair value of warrant liabilities is discussed 
in  Note  12,  and  the  fair value  of  marketable  securities and  certain  other  assets  and  liabilities  is
discussed in Note 16.

F-9

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

g) Income Taxes

The Company accounts for income taxes in accordance with ASC 740, “Income Taxes”.    Deferred 
tax assets and liabilities are recorded for differences between the financial statement and tax basis 
of the assets and liabilities that will result in taxable or deductible amounts in the future based on 
enacted tax laws and rates.  ASC 740 requires that a valuation allowance be established when it is 
more likely than not that all portions of a deferred tax asset will not be realized.    A review of all 
positive  and  negative  evidence  needs  to  be  considered,  including  a  company’s  current  and  past 
performance,  the  market  environment  in  which  the  company  operates,  length  of  carryback  and 
carryforward periods and existing contracts that will result in future profits.    Income tax expense 
is  recorded  for  the  amount  of  income  tax  payable  or  refundable  for  the  period,  increased  or 
decreased by the change in deferred tax assets and liabilities during the period.

As a result of the Company’s significant cumulative losses, the Company determined that it was 
appropriate to establish a valuation allowance for the full amount of net deferred tax assets.

The calculation of the Company’s tax liabilities involves the inherent uncertainty associated with 
the application of complex tax laws.    The Company is subject to examination by various taxing 
authorities.    The Company believes that, as a result of its loss carryforward sustained to date, any 
examination would result in a reduction of its net operating losses rather than a tax liability.    As
such, the Company has not provided for any additional taxes that would be estimated under ASC 
740.

h) Stock-Based Compensation

In accordance with ASC 718, “Stock Compensation,” compensation costs related to share-based 
payment  transactions,  including  employee  stock  options,  are  to  be  recognized  in  the  financial 
statements. In addition, the Company adheres to the guidance set forth within U.S. Securities and 
Exchange Commission (“SEC”) Staff Accounting Bulletin (“SAB”) No. 107, which provides the 
Staff’s views regarding the interaction between ASC 718 and certain SEC rules and regulations, 
and  provides  interpretations  with  respect  to  the  valuation  of  share-based  payments  for  public 
companies. 

i) Concentration of Credit Risk

ASC 825, “Financial Instruments,” requires disclosure of any significant off balance sheet risk and 
credit risk concentration.    The Company does not have significant off-balance sheet risk or credit 
concentration.    The  Company  maintains  cash  and  cash  equivalents with  major  financial 
institutions.    From time to time the Company has funds on deposit with commercial banks that 
exceed  federally  insured  limits.    The balances  are  insured  by  the  Federal  Deposit  Insurance 
Corporation up to $250,000. At December 31, 2017, the Company’s uninsured cash balance was 
$8,399,154. Management does not consider this to be a significant credit risk as the banks are large, 
established financial institutions.

F-10

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

j) Recent Accounting Pronouncements Affecting the Company

Revenue from Contracts with Customers

In May 2014, the FASB issued Accounting Standards Update (“ASU”) 2014-09, “Revenue from 
Contracts with Customers,” a comprehensive new revenue recognition standard that will supersede 
nearly  all  existing  revenue  recognition  guidance  under  U.S.  generally  accepted  accounting 
principles.  The  standard’s  core  principle  is  that  a  company  should  recognize  revenue  when  it 
transfers goods or services to customers in an amount that reflects the consideration to which the 
company expects to be entitled in exchange for those goods and services, and provides a revenue 
recognition framework in accordance with this principle.    On August 12, 2015, the FASB issued 
ASU 2015-14, which defers the effective date of ASU 2014-09 by one year to December 15, 2017 
for annual reporting periods beginning after that date and interim periods therein.    The Company 
will  adopt this  guidance  for  the  annual  reporting  period  beginning  January  1,  2018,  using  the 
modified retrospective method. As the Company does not have revenue contracts, we anticipate 
the  adoption  of  this  guidance  will not  have  a  material  impact  on  the  operating  results  of  the 
Company,  there  will  be  no  significant  changes  to  disclosures,  and  there  will  be no  cumulative 
adjustment to the opening balance of retained earnings as of January 1, 2018.

Leases

In February 2016, the FASB issued ASU 2016-02, “Leases,” which requires an entity to recognize 
assets and liabilities arising from leases on the balance sheet and to provide additional disclosures 
about leasing arrangements.    ASU 2016-02 will be effective for reporting periods beginning after 
December 15, 2018, with early adoption permitted. The Company is currently evaluating the impact 
the adoption of this guidance will have on its financial statements.

Compensation-Stock Compensation

In  March  2016,  the  FASB  issued  ASU  2016-09,  “Compensation-Stock  Compensation: 
Improvements  to  Employee  Share  Based  Payment  Accounting,”  which  includes  multiple 
provisions  intended  to  simplify  various  aspects  of  accounting  for  share-based  payments. The 
guidance is effective for reporting periods beginning after December 15, 2016, with early adoption 
permitted.    The Company adopted this guidance during the year ended December 31, 2017.    This 
pronouncement did not have a material impact on the financial statements.

F-11

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

3. Marketable Securities

The following table shows the Company’s marketable securities’ adjusted cost, gross unrealized gains 
and losses, and fair value by significant investment category as of December 31, 2017 and 2016:

(cid:3)

Commercial Paper
Corporate Bonds
Total Marketable Securities
(cid:3)
(cid:3)

Certificates of Deposit
Commercial Paper
Corporate Bonds
Total Marketable Securities

(cid:3)

(cid:3)
(cid:3)
(cid:3)
(cid:3)

(cid:3)
(cid:3)

(cid:3)

$

Cost 
Basis
3,241,005 $

14,747,822
$ 17,988,827 $
(cid:3)
(cid:3)
(cid:3)

(cid:3)

(cid:3)

Cost 
Basis
720,000 $

3,987,424
4,035,805
8,743,229 $

$

$

December 31, 2017

Gross 
Unrealized
Gains

Gross 
Unrealized
Losses

(2,505)$

Fair
Value
3,238,500
14,693,441
(54,381)
(56,886)$ 17,931,941
(cid:3)

(cid:3)

-$
- -
-$
(cid:3)
(cid:3)
December 31, 2016

Gross 
Unrealized
Gains

Gross 
Unrealized
Losses

197 $
-
-
197 $

-$
(1,684)
(4,635)
(6,319)$

Fair
Value
720,197
3,985,740
4,031,170
8,737,107

The Company typically invests in highly-rated securities, with the primary objective of minimizing the 
potential  risk  of  principal  loss.    As  of  December  31,  2017,  the  Company  had three investments  of
commercial paper with a fair value of $3,238,500 and unrealized losses of $2,505, and 15 corporate 
bonds  with  a  fair  value  of  $14,693,441 and  unrealized  losses of  $54,381,  all  of  which  have  been 
unrealized  losses  for  less  than  12  months. The  Company  does  not  intend to  sell  its  marketable 
securities in an unrealized loss position.    Based upon the Company’s securities’ fair value relative to 
the cost, high ratings, and volatility of fair value, the Company considers the declines in market value 
of its marketable securities to be temporary in nature and does not consider any of its investments other-
than-temporarily impaired, and anticipates that it will recover the entire amortized cost basis.

The amortized cost basis and fair value of marketable securities by contractual maturity are:

Maturity
Less than 1 year
1 to 5 years
Total Marketable Securities

Cost Basis

Fair Value

$

$

$

11,981,457
6,007,370
17,988,827 $

11,955,101
5,976,840
17,931,941

F-12

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

4.    Prepaid Expenses and Other Current Assets

(cid:3)

Deposits on contracts
Prepaid expenses and other current assets

(cid:3)

(cid:3)

(cid:3)
December 31, 
2017

(cid:3)

(cid:3)

December 31, 
2016

$

$

793,940 $
510,601

179,476
429,041

1,304,541 $

608,517

Deposits on contracts consist of deposits on research and development contracts for services that had 
not  been  incurred  as  of  the  balance  sheet  date.    Prepaid  expenses  and  other  assets  include  prepaid 
general and administrative expenses, such as insurance, rent, investor relations fees and compensatory 
stock issued for services not yet incurred as of the balance sheet date.

5. Equipment, Net

(cid:3)

Furniture and fixtures
Office and computer equipment
Lab equipment
Leasehold improvements

Total equipment
Less: Accumulated depreciation and amortization

(cid:3)

(cid:3)

(cid:3)
December 31, 
2017

(cid:3)

(cid:3)
December 31, 
2016

$

82,686 $

171,724
445,134
133,762

833,306
(711,846)

78,794
113,932
431,650
133,762

758,138
(669,488)

Net carrying amount

$

121,460 $

88,650

6. Accounts Payable and Accrued Expenses

(cid:3)

Trade payables
Accrued expenses
Accrued research and development contract costs
Payroll liabilities

(cid:3)

(cid:3)

(cid:3)
December 31, 
2017

(cid:3)

(cid:3)
December 31, 
2016

$

$

895,638$
95,416
1,435,109
807,763

430,013
141,190
499,889
811,408

3,233,926$

1,882,500

F-13

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

7.    Deferred Research and Development Arrangements

Rexgene Biotech Co., Ltd.

In 2003, the Company entered into a collaborative research agreement with Rexgene Biotech Co., 
Ltd. (“Rexgene”), a stockholder, pursuant to which Rexgene agreed to assist the Company with the 
research, development and clinical trials necessary for registration of the Company’s drug candidate 
RX-0201 (Archexin®) in Asia. 
In accordance with the agreement, Rexgene paid the Company a 
one-time fee of $1,500,000 in 2003.    The agreement provided that it would expire upon the later of 
(i) 20 years after the date of the agreement or (ii) the expiration of the patents relating to RX-0201.
The amortization reduces research and development expenses for the periods presented.   

The Company is using 20 years as its basis for recognition and accordingly research and development 
expenses were reduced by $75,000 for each of the years ended December 31, 2017, 2016 and 2015.
The remaining $375,000 and $450,000 to be amortized at December 31, 2017 and 2016, respectively, 
are reflected as a deferred research and development arrangement on the balance sheet.    The payment 
from Rexgene is being used in the cooperative funding of the costs of development of RX-0201.   

On February 5, 2018, the Company and NEXT BT Co. Ltd., the successor in interest to Rexgene, 
terminated the agreement. 

F-14

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

8. Other Liabilities

Deferred Lease Incentive

In accordance with the Company’s office lease agreement, as amended and further discussed in Note 
15, the Company has been granted leasehold improvement allowances from the lessor to be used for 
the  construction  cost  of  improvements  to  the  leased  property,  which  included  architectural  and 
engineering fees, government agency plan check, permit and other fees, sales and use taxes, testing 
and  inspection  costs  and  telephone  and  data  cabling  and  wiring in  the  premises.    The  Company 
accounted for the benefit of the leasehold improvement allowance as a reduction of rental expense 
over the term of the office lease.

The following table sets forth the cumulative deferred lease incentive:

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)

Deferred lease incentive
Less accumulated amortization

Balance

Deferred Office Lease Expense

December 31, 
2017

December 31, 
2016

$

$

154,660 $

(135,995)

154,660
(123,551)

18,665 $

31,109

The lease agreement, as amended, provided for an initial annual base rent with annual increases over 
the lease term.    The Company recognizes rental expense on a straight-line basis over the term of the 
lease, which resulted in a deferred rent liability of $38,059 and $48,095 as of December 31, 2017
and 2016, respectively.

9. Net Loss per Common Share

Basic loss per common share is computed by dividing net loss by the weighted average number of 
shares of common stock outstanding for the period.    Diluted loss per common share is computed by 
dividing net loss by the weighted average number of shares of common stock outstanding, plus the 
number of common share equivalents that would be dilutive.    As of December 31, 2017, 2016 and
2015, there  were  stock  options,  restricted  stock  units and  warrants  to  acquire,  in  the  aggregate,
8,961,140, 7,142,728, and 3,908,295 shares of the Company’s common stock, respectively, which are 
potentially dilutive. However, diluted loss per share for all periods presented is the same as basic loss 
per share because the inclusion of common share equivalents would be anti-dilutive.

F-15

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

10. Common Stock 

The following transactions occurred during the years ended December 31, 2017, 2016 and 2015:

Reverse Stock Split

On May 5, 2017, the Company effected a one-for-ten reverse stock split of the outstanding shares of 
the Company’s common stock, together with a corresponding proportional reduction in the number of 
authorized shares of the Company’s capital stock.    Each ten shares of the Company’s common stock, 
par value $0.0001 per share, issued and outstanding at the effective time of the reverse stock split were 
reclassified and combined into one share of common stock par value $0.0001 per share. The number 
of shares of common stock and preferred stock the Company is authorized to issue was reduced to 50
million  and  10 million,  respectively.    All  share  and  per  share  amounts  of  common  stock,  stock 
options, stock warrants and restricted stock units have been restated for all periods to give retroactive 
effect to the reverse stock split.    Accordingly, an amount equal to the par value of the decreased shares 
resulting from the reverse stock split was reclassified from “Common stock” to “Additional paid-in 
capital.”   

Public Offerings

November 2015 

On November 12, 2015, the Company closed a registered direct public offering of 1,666,667 shares of 
common  stock  and  warrants  to  purchase  up  to  1,250,000 shares  of  common  stock.    The  common 
stock and warrants were sold in units, consisting of a share of common stock and a warrant to purchase 
0.75 shares of common stock, at a price of $4.20 per unit, with an exercise price for the warrants of 
$5.30 per  share.    The  total  gross  proceeds  of  the  offering  were  $7,000,000.    The  warrants  issued 
became exercisable beginning six months after the closing date, and will remain exercisable until the 
five-year anniversary of the initial exercise date, and were recorded as liabilities at fair value.   

A summary of the allocation of the proceeds of the offering is shown below:
Gross Proceeds:

Allocated to warrant liabilities:
Allocated to common stock and additional paid-in capital

Total allocated gross proceeds:

$

$

7,000,000

2,792,500
4,207,500

7,000,000

The  closing  costs  of  $740,323 included  83,333 warrants  valued  at  $174,417 and  $565,906 for 
placement agent and other fees.    Based upon the estimated fair value of the stock and warrants in the 
units, the Company allocated $211,116 to financing expense and $529,207 as stock issuance costs.

F-16

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

March 2016

On  March  2,  2016, the  Company  closed  a  registered  direct  public  offering  of  1,562,500 shares  of 
common  stock  and  warrants  to  purchase  up  to  1,171,875 shares  of  common  stock.    The  common 
stock and warrants were sold in units, consisting of a share of common stock and a warrant to purchase 
0.75 shares of common stock, at a price of $3.20 per unit, with an exercise price for the warrants of 
$4.20 per  share.    The  total  gross  proceeds  of  the  offering  were  $5,000,000.    The  issued  warrants 
issued became exercisable beginning six months after the closing date, and will remain exercisable 
until the five-year anniversary of the initial exercise date, and were recorded as liabilities at fair value.   

A summary of the allocation of the proceeds of the offering is shown below:

Gross Proceeds:

Allocated to warrant liabilities:
Allocated to common stock and additional paid-in capital

Total allocated gross proceeds:

$

$

5,000,000

2,419,922
2,580,078

5,000,000

The  closing  costs  of  $575,751 included  78,125 warrants  valued  at  $155,938 and  $419,813 for 
placement agent and other fees.    Based upon the estimated fair value of the stock and warrants in the 
units, the Company allocated $169,887 to financing expense and $405,864 as stock issuance costs.

September 2016

On September 19, 2016, the Company closed a registered direct public offering of 2,400,000 shares of 
common  stock  and  warrants  to  purchase  up  to  1,800,000 shares  of  common  stock.    The  common 
stock and warrants were sold in units, consisting of a share of common stock and a warrant to purchase 
0.75 shares of common stock, at a price of $2.50 per unit, with an exercise price for the warrants of 
$3.00 per  share.    The  total  gross  proceeds  of  the  offering  were  $6,000,000.    The  warrants  issued 
became exercisable beginning six months after the closing date, and will remain exercisable until the 
five-year anniversary of the initial exercise date, and were recorded as liabilities at fair value.   

A summary of the allocation of the proceeds of the offering is shown below:

Gross Proceeds:

Allocated to warrant liabilities:
Allocated to common stock and additional paid-in capital

Total allocated gross proceeds:

$

$

6,000,000

1,671,120
4,328,880

6,000,000

The  closing  costs  of  $575,094 included  144,000 warrants  valued  at  $117,130 and  $457,964 for 
placement agent and other fees.    Based upon the estimated fair value of the stock and warrants in the 
units, the Company allocated $143,203 to financing expense and $431,891 as stock issuance costs.

F-17

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

June 2017

On  June  12,  2017  the  Company  closed  a  registered  direct  public  offering  of  3,030,304 shares  of 
common  stock  and  warrants  to  purchase  up  to  1,515,152 shares  of  common  stock.    The  common 
stock and warrants were sold in units, consisting of a share of common stock and a warrant to purchase 
0.5 shares of common stock, at a price of $3.30 per unit, with an exercise price for the warrants of 
$4.00 per share.    The total gross proceeds of the offering were $10,000,003.    The warrants issued 
became exercisable beginning six months after the closing date, and will remain exercisable until the 
five-year anniversary of the initial exercise date, and were recorded as liabilities at fair value.   

A summary of the allocation of the proceeds of the offering is shown below:
Gross Proceeds:

Allocated to warrant liabilities
Allocated to common stock and additional paid-in capital

Total allocated gross proceeds:

$

$

10,000,003

3,673,168
6,326,835

10,000,003

The Company also issued warrants to purchase up to an aggregate 181,818 shares of common stock to 
the  placement  agent  in  the  offering.    The  closing  costs  for  the  offering  of  $1,193,052 included 
$434,320 for the placement agent warrants and $758,732 for placement agent and other fees.    Based 
on the estimated fair value of the stock and warrants in the units, the Company allocated $333,050 to 
financing expense for the warrants and $860,002 as stock issuance costs.

October 2017

On October 17, 2017 the Company closed a registered direct public offering of 3,265,309 shares of 
common  stock  and  warrants  to  purchase  up  to  1,632,654 shares  of  common  stock.    The  common 
stock and warrants were sold in units, consisting of a share of common stock and a warrant to purchase
0.5 shares of common stock, at a price of $2.45 per unit, with an exercise price for the warrants of 
$2.85 per share.    The total gross proceeds of the offering were $8,000,007.    The warrants issued will 
become exercisable beginning six months after the closing date, and will remain exercisable until the 
five-year anniversary of the initial exercise date, and were recorded as liabilities at fair value.   

A summary of the allocation of the proceeds of the offering is shown below:
Gross Proceeds:

Allocated to warrant liabilities
Allocated to common stock and additional paid-in capital

Total allocated gross proceeds:

$

$

8,000,007

2,360,459
5,639,548

8,000,007

The Company also issued warrants to purchase up to an aggregate 195,919 shares of common stock to 
the placement agent in the offering.    The closing costs for the offering of $830,111 included $270,754
for the placement agent warrants and $559,357 for placement agent and other fees.    Based on the 
estimated  fair  value  of the  stock  and  warrants  in  the  units,  the  Company  allocated  $219,577 to 
financing expense for the warrants and $610,534 as stock issuance costs.

F-18

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

At Market Offering

On  August  2,  2017,  the  Company  terminated  the  at  market  issuance  sales  agreement  (the  “Sales 
Agreement”),  dated  March  16,  2015, with  MLV  &  Co.  LLC,  now  part  of  FBR  &  Co. (“MLV”),
pursuant to which the Company was entitled to issue and sell shares of its common stock having an 
aggregate offering price of up to $40 million from time to time, at its option, through MLV as the 
Company’s sales agent. For the year ended December 31, 2015, the Company sold 140,707 shares 
of  common  stock  pursuant  to  the  Sales  Agreement  for  $1,042,573 in gross  proceeds  at  a  weighted 
average  price  of  $7.41 per  share. Net  proceeds  to  the  Company  were  $1,005,715 after  deducting 
commissions and other transaction costs. There were no shares sold under the Sales Agreement for 
the years ended December 31, 2017 and 2016.

Compensatory Shares

The  Company  has  issued  restricted  shares  to  vendors  in  exchange  for  services.    The  table  below 
summarizes the shares issued and the related market value:

Compensatory shares issued
Aggregate market value

$

15,000
31,200 $

33,000
97,649 $

For the Year Ended December 31, 

2017

2016

2015

15,000
102,000

Stock Option and Stock Warrant Exercises

The table below summarizes stock options and stock warrants exercised:

Stock Option Exercises
Number of shares issued
Total cash received 

Stock Warrant Exercises
Number of shares issued
Total cash received 

Treasury Stock Transactions

For the Year Ended December 31, 

2017

2016

2015

25,000
77,500 $

1,652,623
5,354,093 $

$

$

-
- $

-
- $

88,943
708,617

4,730
22,325

On  December  3,  2015,  the  Company  retired  11,321 shares  of  treasury  stock  with  an  aggregate 
purchase price of $128,410.

F-19

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

11. Stock-Based Compensation

As of December 31, 2017, the Company had 1,814,231 options to purchase common stock and 47,300
restricted stock units (“RSUs”) outstanding.

At  the  Company’s  Annual  Meeting  of  the  Stockholders held  on  June  10,  2013,  the  Company’s 
stockholders voted to approve the Rexahn Pharmaceuticals, Inc. 2013 Stock Option Plan (the “2013 
Plan”).    Under the 2013 Plan, the Company grants equity awards to key employees, directors and 
consultants  of  the  Company. At  the  Company’s  Annual  Meeting  held  on  June  9,  2016, the 
Company’s stockholders voted to approve an amendment and restatement of the 2013 Plan, including 
to provide for awards of restricted stock and restricted stock units. The Company initially reserved 
1,700,000 shares of common stock for issuance pursuant to the 2013 Plan, and on April 11, 2017, the 
Company’s  stockholders approved  an  increase  of  1,700,000 shares  of  common  stock  reserved  for 
issuance pursuant to the 2013 Plan.    As of December 31, 2017, there were 1,477,231 options and 
47,300 RSUs outstanding under the 2013 Plan, and 1,874,719 shares were available for issuance.

On August 5, 2003, the Company established a stock option plan (the “2003 Plan”).    Under the 2003 
Plan, the Company granted stock options to key employees, directors and consultants of the Company.   
With the adoption of the 2013 Plan, no new stock options may be issued under the 2003 Plan, but 
previously  issued  options  under  the  2003  Plan  remain  outstanding  until  their  expiration.    As  of 
December 31, 2017, there were 325,000 outstanding options under the 2003 Plan.

In March 2016, the Company granted to a third party an option to purchase up to 12,000 shares of the 
Company’s common stock.    Of the Company’s outstanding options as of December 31, 2017, these 
were the only options that were not issued pursuant to the 2013 Plan or the 2003 Plan.

Accounting for Awards

Stock-based compensation expense is the estimated fair value of options and RSUs granted amortized 
on a straight-line basis over the requisite vesting service period for the entire portion of the award.   
Total stock-based compensation recognized by the Company for the years ended December 31, 2017, 
2016 and 2015 is as follows:

Statement of operations line item:
General and administrative
Research and development

Total

For the Year Ended December 31,
2015
2016
2017

$

$

765,726 $
278,441

905,911 $
503,577

665,063
372,616

1,044,167 $

1,409,488 $

1,037,679

No income  tax  benefit  has  been  recognized  in  the  statement  of  operations  for  stock-based 
compensation arrangements as the Company has provided for a 100% valuation allowance on its net 
deferred tax assets.

F-20

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

Summary of Stock Option Transactions

There  were  483,260 stock  options  granted  at  exercise  prices  ranging  from  $1.84 to  $6.18 with  an 
aggregate fair value of $738,937 during the year ended December 31, 2017. There were 592,637
stock options granted at exercise prices ranging from $1.80 to $3.70 with an aggregate fair value of 
$1,156,273 during the year ended December 31, 2016.    There were 420,130 stock options granted at 
exercise prices ranging from $5.40 to $8.90 with an aggregate fair value of $1,994,893 during the year 
ended December 31, 2015.   

For the majority of the grants to employees, the vesting period is either (i) 30%, 30% and 40% on the 
first, second and third anniversaries, of the grant date, respectively, or (ii) 25% each on the first four 
anniversaries.    Options expire between five and ten years from the date of grant. For grants to non-
employee consultants of the Company, the vesting period is between one and three years, subject to 
the fulfillment of certain conditions in the individual stock agreements, or 100% upon the occurrence 
of certain events specified in the individual stock agreements.

The fair value of options at the date of grant was estimated using the Black-Scholes option pricing 
model.    The  Company  took  into  consideration  guidance  under  ASC  718,  “Compensation-Stock 
Compensation” and Staff Accounting Bulletin No. 107 (“SAB 107”) when reviewing and updating 
assumptions.   

Significant assumptions are determined as follows:

Expected  Term.  The  expected  term  is  estimated  using  the  simplified  method  whereby  the 
expected term equals the arithmetic average of the vesting term and the original contractual term 
of the option.

Volatility. Volatility is based on the historical trading volatility of the Company’s stock on the 
date of grant for a period consistent with the expected term.

Risk-Free  Interest  Rate.  The  risk-free  interest  rate  is  based  on  the zero-coupon U.S.  Treasury 
instruments on the date of grant with a maturity date consistent with the expected term of the 
Company’s stock option grants.

Expected Dividend. To date, the Company has not declared or paid any cash dividends and do 
not have any plans to do so in the future. Therefore, the Company used an expected dividend 
yield of zero.

The assumptions made in calculating the fair values of options are as follows: 

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)

Black-Scholes assumptions
Expected dividend yield
Expected volatility
Risk-free interest rate
Expected term (in years)

Year Ended December 31, 
2016

2017

2015

0%
69-79%
1.7-2.0%

0%
31-75%
0.8-1.4%

0%
72-80%
1.2-1.7%

5.5-6 years

2-6 years

5-6 years

F-21

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

The following table summarizes share-based transactions:

Outstanding, January 1, 2017
Granted
Exercised
Expired
Cancelled

Outstanding, December 31, 2017
Exercisable, December 31, 2017

Number of 
Options

1,690,037 $
483,260 $
(25,000)$
(20,000)$
(314,066)$

1,814,231 $
1,086,688 $

Weighted 
Average 
Exercise 
Price

6.20
2.37
3.10
16.18
4.97

5.33
6.50

Weighted Average 
Remaining 
Contractual Term

Aggregate 
Intrinsic 
Value

7.3 years $

-

7.1 years $
6.2 years $

53,883
321

The total intrinsic value of options exercised was $97,872 and $99,895 for the years ended December 
31,  2017  and  2015,  respectively.    There  were  no stock  options  exercised  during  the  year  ended 
December 31, 2016.    The weighted average fair value of options granted was $1.53, $2.00, and $4.70
for the years ended December 31, 2017, 2016 and 2015, respectively.

A summary of the Company’s unvested options as of December 31, 2017 and changes during the year
ended December 31, 2017 is presented below:

(cid:3)

(cid:3)

(cid:3)

(cid:3)
2017

Unvested at January 1, 2017
Granted
Vested
Cancelled

Number of   
Options

Weighted Average Fair 
Value at Grant Date
$
897,123
483,260
$
(489,235) $
(163,605) $

3.21
1.53
3.11
2.25

Unvested at December 31, 2017

727,543

$

2.39

As of December 31, 2017, there was $1,233,528 of total unrecognized compensation cost related to 
unvested stock options, which is expected to be recognized over a weighted average vesting period of 
2.3 years.   

F-22

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

Summary of Restricted Stock Unit Transactions

The Company began granting RSUs to employees in 2017.    There were 62,300 RSUs granted with 
an aggregate fair value of $114,632 during the year ended December 31, 2017. The fair value of an 
RSU award is the closing price of the Company’s common stock on the date of grant.

A summary of RSU activity for the year ended December 31, 2017 is as follows:

Outstanding, January 1, 2017
Granted
Vested and Released
Cancelled

Outstanding, December 31, 2017

Number of RSUs

Weighted 
Average Grant 
Date Fair Value

- $
62,300 $
- $
(15,000) $

47,300 $

-
1.84
-
1.84

1.84

As  of  December  31,  2017,  there  was  $67,496 of  total  unrecognized  compensation  cost  related  to 
unvested  RSUs  which  is  expected  to  be  recognized  over  a  weighted  average  vesting  period  of  3.2
years.   

F-23

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

12. Warrants 

As of December 31, 2017, warrants to purchase 7,099,609 shares were outstanding, having exercise 
prices ranging from $2.85 to $12.80 and expiration dates ranging from July 26, 2018 to April 17, 2023.     

(cid:3)

(cid:3)

(cid:3)

(cid:3)
2017

(cid:3)

(cid:3)
(cid:3)
2016

Number of 
warrants

Weighted 
average exercise 
price

Number of 
warrants

Weighted average 
exercise price

Balance, January 1
Issued during the period
Exercised during the period
Expired during the period

5,452,691 $
3,525,543 $
(1,861,195) $
(17,430) $

Balance, December 31

7,099,609 $

4.92
3.42
3.51
4.72

4.55

2,649,199 $
3,194,000 $
- $
(390,508) $

5,452,691 $

7.97
3.47
-
13.72

4.92

At December 31, 2017, the weighted average remaining contractual life of the outstanding warrants 
was 4.0 years.

The warrants issued to investors in the December 2012, November 2015, March 2016 and September 
2016 offerings contain a provision for net cash settlement in the event of a fundamental transaction 
(contractually  defined  to  include  a  merger,  sale  of  substantially  all  assets,  tender  offer  or  share 
exchange).    Pursuant  to  the  November  2015,  March  2016,  and  September  2016  warrants,  if 
fundamental transaction occurs, then the warrant holder has the option to receive cash, equal to the fair 
value of the remaining unexercised portion of the warrant.    The option is available to holders of the 
December 2012 warrants only if the consideration issued in the fundamental transaction consists of 
cash  or  stock  in  a  non-public  company.    The  June  2017  and  October  2017  warrants  contain  a 
provision  that  allows  the  holder  to  opt  for  cash  settlement  in  a  fundamental  transaction  that  was 
approved  by,  or  required  to  be  approved  by,  the  board  of  directors  of  the  Company.  All  of  the 
Company’s outstanding warrants provide the holder the option as to the type of consideration received 
if  the  holders  of  common  stock  receive  an  option  as  to  their  consideration.  In  addition,  all  of  the 
Company’s outstanding warrants contain a cashless exercise provision that is exercisable only in the 
event that a registration statement is not effective. That provision may not be operative if an effective 
registration statement is not available because an exemption under the U.S. securities laws may not be 
available  to  issue  unregistered  shares.    As  a  result,  net  cash  settlement  may  be  required,  and  the 
warrants require liability classification.

ASC  820  provides  requirements  for  disclosure  of  liabilities  that  are  measured  at  fair  value  on  a 
recurring  basis  in  periods  subsequent  to  the  initial  recognition.    Fair  values  for  warrants  were 
determined using the Binomial Lattice (“Lattice”) valuation technique. The Lattice model provides for 
dynamic assumptions regarding volatility and risk-free interest rates within the total period to maturity. 
Accordingly, within the contractual term, the Company provided multiple date intervals over which 
multiple volatilities and risk-free interest rates were used. These intervals allow the Lattice model to 
project outcomes along specific paths that consider volatilities and risk-free rates that would be more 
likely in an early exercise scenario.

F-24

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

Significant assumptions are determined as follows: 
Trading market values—Published trading market values; 
Exercise price—Stated exercise price; 
Term—Remaining contractual term of the warrant; 
Volatility—Historical trading volatility for periods consistent with the remaining terms; and
Risk-free rate—Yields on zero coupon government securities with remaining terms consistent with the 
remaining terms of the warrants. 

Due  to  the  fundamental  transaction  provision,  which  could  provide  for  early  redemption  of  the 
warrants,  the  model  also  considered  the  probability  the  Company  would  enter  into  a  fundamental 
transaction  during  the  remaining  term  of  the  warrant.  Because  the  Company  is  not  yet  achieving 
positive cash flow, management believes the probability of a fundamental transaction occurring over 
the  term  of  the  warrant  is  unlikely  and  therefore  estimates  the  probability  of  entering  into  a 
fundamental transaction to be 5%.    For valuation purposes, the Company also assumed that if such a 
transaction did occur, it was more likely to occur towards the end of the term of the warrants.

The  significant  unobservable  inputs  used  in  the  fair  value  measurement  of  the  warrants  include 
management’s  estimate  of  the  probability  that  a  fundamental  transaction  may  occur  in  the  future.   
Significant increases (decreases) in the probability of occurrence would result in a significantly higher 
(lower) fair value measurement.

The following table summarizes the fair value of the warrants as of the respective balance sheet dates:

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)
Fair Value as of: 

(cid:3)

December 31, 2017 December 31, 2016
49
- $
$
2,060
3,708
714
260,500
13,542
358,945
21,320
854,640
57,888
-
-
-
-
1,573,366

8,762
26,288
29,257
1,260,050
2,936
697,554
-
1,054,083
-
1,981,864
221,591
2,305,552
265,698
7,853,635 $

$

Warrant Issuance:
December 2012 Investor Warrants 
July 2013 Investor Warrants 
October 2013 Investor Warrants
January 2014 Investor Warrants
November 2015 Investor Warrants
November 2015 Placement Agent Warrants   
March 2016 Investor Warrants
March 2016 Placement Agent Warrants
September 2016 Investor Warrants
September 2016 Placement Agent Warrants
June 2017 Investor Warrants
June 2017 Placement Agent Warrants
October 2017 Investor Warrants
October 2017 Placement Agent Warrants
Total:

F-25

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

The following table summarizes the number of shares indexed to  the warrants as  of  the  respective 
balance sheet dates:

(cid:3)

Warrant Issuance
December 2012 Investor Warrants 
July 2013 Investor Warrants 
October 2013 Investor Warrants
January 2014 Investor Warrants
November 2015 Investor Warrants
November 2015 Placement Agent Warrants   
March 2016 Investor Warrants
March 2016 Placement Agent Warrants
September 2016 Investor Warrants
September 2016 Placement Agent Warrants
June 2017 Investor Warrants
June 2017 Placement Agent Warrants
October 2017 Investor Warrants
October 2017 Placement Agent Warrants
Total:

(cid:3)

(cid:3)

(cid:3)
Number of Shares indexed as of:

December 31, 2017

December 31, 2016

-
200,000
231,732
476,193
1,250,001
3,334
607,806
-
805,000
-
1,515,152
181,818
1,632,654
195,919
7,099,609

17,430
200,000
231,732
476,193
1,250,001
83,335
1,171,875
78,125
1,800,000
144,000
-
-
-
-
5,452,691

The assumptions used in calculating the fair values of the warrants are as follows: 

Trading market prices
Estimated future volatility
Dividend
Estimated future risk-free rate
Equivalent volatility
Equivalent risk-free rate

December 31, 2017

December 31, 2016

$

$

2.02
104 %
-

2.14-2.45%
85-104%
1.30-1.89%

1.40
104 %
-

1.06-2.44%
51-60%
0.59-1.25%

F-26

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

Changes in the fair value of the warrant liabilities, carried at fair value, as reported as “unrealized 
(loss) gain on fair value of warrants” in the statement of operations:

$

Expired Warrants
December 2012 Investor Warrants 
July 2013 Investor Warrants 
October 2013 Investor Warrants
January 2014 Investor Warrants
November 2015 Investor Warrants
November 2015 Placement Agent Warrants 
March 2016 Investor Warrants
March 2016 Placement Agent Warrants
September 2016 Investor Warrants
September 2016 Placement Agent Warrants
June 2017 Investor Warrants
June 2017 Placement Agent Warrants
October 2017 Investor Warrants
October 2017 Placement Agent Warrants
Total:

$

For the Year Ended December 31,

2017

2016

2015

-$

49
(6,702)
(22,580)
(28,543)
(999,550)
(365,748)
(2,708,163)
(351,899)
(4,571,872)
(503,150)
1,691,304
212,729
54,907
5,056

(7,594,162)$

2,590 $
9,769
119,360
165,641
130,762
1,908,875
121,593
2,060,977
134,617
816,480
59,243
-
-
-
-

5,529,907 $

458,439
70,856
666,894
780,407
1,347,724
623,125
39,282
-
-
-
-
-
-
-
-
3,986,727

13. Mediation Settlement

In connection with the process of seeking patent protection for RX-5902 in Japan, the Company had 
filed a patent application including claims covering RX-5902 with the Japanese Patent Office (“JPO”) 
for examination. The JPO initially agreed that the claims covering the compound for RX-5902 were 
allowable, but as a result of a mistake in the patent application filing as prepared and submitted by the 
Company’s Japanese patent attorney and incomplete review by the JPO’s patent examiner, the JPO 
issued a decision to grant a patent with claims that did not include RX-5902’s chemical structure. The 
Company appealed this decision with the JPO to request withdrawal of the decision to grant so that 
the correct claims would be allowed, but the JPO refused to withdraw its decision. As a result, and in 
accordance with Japanese law and procedure for appealing patent application decisions, the Company 
has filed a lawsuit against the JPO in Tokyo District Court to cause the JPO to reverse its decision to
grant  the  errant  patent  and  to  allow  a  patent  that  includes  claims  covering RX-5902. The  patent 
application at issue remains pending subject to the outcome of this action. While the composition of 
matter patent on RX-5902 structure remains pending in Japan, the Company either has already or will 
have  protection in  Japan from  its  issued  and  pending  patents  on  formulation,  method  of  use,  and 
method of manufacturing as well as from market exclusivity period.

On  December  19,  2016,  the  Company  entered  into  a  binding  settlement  arrangement  with  the 
Company’s Japanese patent attorney in which the Japanese patent attorney agreed to pay a one-time 
settlement JPY 210,000,000, or $1,770,658, in exchange for the Company agreeing not to bring any 
future claims on account of this patent filing. The settlement payment was received by the Company 
by December 31, 2016.

F-27

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

14. Income Taxes

No provision for federal and state income taxes was required for the years ended December 31, 2017, 
2016 and  2015 due  to  the  Company’s  operating  losses  and  increased  deferred  tax  asset  valuation 
allowance.    At  December  31, 2017 and  2016, the  Company  had  unused  net  operating  loss  carry-
forwards  of  approximately $127,877,000 and $111,605,000, respectively, which  expire  at  various 
dates  through  2037.    Some  of  this  amount  may  be  subject  to  annual  limitations  under  certain 
provisions of the Internal Revenue Code related to “changes in ownership.”   

As  of  December  31,  2017, and  2016,  the  deferred  tax  assets  related  to  the  aforementioned  carry-
forwards  have  been  fully  offset  by  valuation  allowances,  because significant  utilization  of  such 
amounts is not presently expected in the foreseeable future.   

Deferred tax assets and valuation allowances consist of:

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)

December 31, 
2017

December 31, 
2016

Net Operating Loss Carryforwards
Stock Compensation Expense
Book tax differences on assets and liabilities
Valuation Allowance

Net Deferred Tax Assets

$

$

35,805,000 $
1,458,000
365,000
(37,628,000)

43,526,000
1,968,000
547,000
(46,041,000)

-$

-

The Company files income tax returns in the U.S. federal and Maryland state jurisdictions.  Tax 
years for fiscal 2014 through 2017 are open and potentially subject to examination by the federal and 
Maryland state taxing authorities.

The Tax Cuts and Jobs Act, which was signed into law on December 22, 2017, reduces the U.S. 
corporate income tax rate from 35 percent to 21 percent.    The Company remeasured its net deferred 
tax assets based on the new corporate tax rate.    There was no impact on income tax expenses 
resulting from the remeasurement due to the full offset by the valuation allowance.

F-28

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

15. Commitments and Contingencies

a)

The Company has contracted with various vendors for research and development services, with 
terms that require payments over the term of the agreements, usually ranging from two to 36
months. The costs to be incurred are estimated and are subject to revision. As of December 31,
2017,  the  total  estimated  cost  to  complete these  agreements  was  approximately  $11,110,000.
All of these agreements may be terminated by either party upon appropriate notice as stipulated 
in the respective agreements.

b) On June 22, 2009, the Company entered into a License Agreement with Korea Research Institute 
of Chemical Technology (“KRICT”) to acquire the rights to all intellectual property related to 
quinoxaline-piperazine  derivatives  that  were  synthesized  under  a  Joint  Research  Agreement.   
The  initial  license  fee  was  $100,000,  all  of  which  was  paid  as  of  December  31,  2009.    The 
agreement with KRICT calls for a one-time milestone payment of $1,000,000 within 30 days 
after the first achievement of marketing approval of the first commercial product arising out of 
or in connection with the use of KRICT’s intellectual properties.    As of December 31, 2017,
the milestone has not occurred.

c)

Office Space Lease

On June 5, 2009, the Company entered into a commercial lease agreement for 5,466 square feet 
of office space in Rockville, Maryland. The lease was amended on June 7, 2013 to extend the 
term until June 30, 2019.

On July 26, 2014, the lease was amended to add 1,727 square feet of office space, beginning on 
September  1,  2014  and  ending  on  August  31,  2015.  The  lease  of  additional  space  was 
subsequently renewed until June 30, 2019. Under the lease agreement, the Company pays its 
allocable portion of real estate taxes and common area operating charges. 

Rent paid under the Company’s lease during the years ended December 31, 2017, 2016, and 2015
was $206,667, $205,324, and $202,529, respectively.

Prior Laboratory Lease

to  use  laboratory  space 
On  August  26,  2014,
commencing on July 1, 2014. The lease required monthly rental payments of $4,554.    Rent 
paid under the Company’s lease during the year ended December 31, 2015 was $27,324.

the  Company  signed  a one-year  renewal

Current Laboratory Lease

On April 20, 2015, the Company signed a five-year lease agreement for 2,552 square feet of 
laboratory space commencing on July 1, 2015 and ending on June 30, 2020.    Under the lease 
agreement,  the  Company  pays  its  allocable  portion  of  real  estate  taxes  and  common  area 
operating charges. Rent paid under this lease during the years ended December 31, 2017, 2016 
and 2015 was $64,032, $62,167 and $30,624, respectively.

F-29

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

Future rental payments over the next five years for all leases are as follows:

(cid:3)
For the year ending December 31:
(cid:3)
(cid:3)
(cid:3)
(cid:3)

(cid:3)

(cid:3)
$

(cid:3)
2018
2019
2020

279,274
176,080
34,468

Total

$

489,822

d)

e)

f)

The Company has established a 401(k) plan for its employees.    The Company has elected to 
match 100% of the first 3% of an employee’s compensation plus 50% of an additional 2% of the 
employee’s  deferral.  Expense  related  to  this  matching  contribution  aggregated  to $123,145,
$113,204, and $121,519, for the years ended December 31, 2017, 2016 and 2015 respectively. 

In July 2013, the Company entered into an exclusive license agreement with the University of 
Maryland,  Baltimore  for  a  novel  drug  delivery  platform,  Nano-Polymer  Drug  Conjugate 
Systems.    The  agreement  requires  the  Company  to  make  payments  to  the  University  of 
Maryland if any products from the licensed delivery platform achieve development milestones.   
As of December 31, 2017, no development milestones have occurred.

In  October  2013,  the  Company  signed  an  exclusive  license  agreement  with  the  Ohio  State 
Innovation  Foundation,  for  a  novel  oligonucleotide  drug  delivery  platform,  Lipid-Coated 
Albumin Nanoparticle.    The agreement requires the Company to make payments to the Ohio 
State  Innovation  Foundation  or  any  products  from  the  licensed  delivery  platform  achieve 
development milestones.    As of December 31, 2017, no development milestones have occurred.

F-30

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

16.    Fair Value Measurements

ASC 820 defines fair value as the price that would be received to sell an asset or paid to transfer a 
liability in an orderly transaction between market participants at the measurement date, not adjusted 
for transaction costs.    ASC 820 also establishes a fair value hierarchy that prioritizes the inputs to 
valuation techniques used to measure fair value into three broad levels giving the highest priority to 
quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to 
unobservable inputs (Level 3).   

The three levels are described below: 

Level 1 Inputs — Unadjusted quoted prices in active markets for identical assets or 
liabilities that are accessible by the Company;

Level 2 Inputs — Quoted prices in markets that are not active or financial instruments for 
which all significant inputs are observable, either directly or indirectly;

Level 3 Inputs — Unobservable inputs for the asset or liability including significant 

assumptions of the Company and other market participants.

The following tables present assets and liabilities that are measured at fair value on a recurring 
basis  and  are  categorized  using  the  fair  value  hierarchy.    There  have  been  no  changes  in  the 
methodologies used at December 31, 2017 and 2016.

(cid:3)

Assets:
          Commercial Paper
          Corporate Bonds
Total Assets:

Liabilities:
          Warrant Liabilities

(cid:3)

(cid:3)
Fair Value Measurements at December 31, 2017

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)

(cid:3)

      Total

Level 1

Level 2

Level 3

3,238,500
14,693,441
17,931,941 $

7,853,635 $

$

$

-
-
- $

- $

3,238,500
14,693,441
17,931,941 $

-
-
-

- $

7,853,635

Fair Value Measurements at December 31, 2016

      Total

Level 1

Level 2

Level 3

Assets:
          Certificates of Deposit
          Commercial Paper
          Corporate Bonds
Total Assets:

Liabilities:
          Warrant Liabilities

$

$

$

720,197 $

3,985,740
4,031,170
8,737,107 $

1,573,366 $

- $
-
-
- $

- $

720,197 $

3,985,740
4,031,170
8,737,107 $

-
-
-
-

- $

1,573,366

F-31

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

The fair value of the Company’s Level 2 marketable securities is determined by using quoted prices 
from independent pricing services that use market data for comparable securities in active or inactive 
markets.    A variety of data inputs, including benchmark yields, interest rates, known historical trades 
and broker dealer quotes are using with pricing models to determine the quoted prices.

The fair value methodology for the warrant liabilities is disclosed in Note 12.

The carrying amounts reported in the financial statements for cash and cash equivalents (Level 1), and 
accounts payable and accrued expenses approximate fair value because of the short term maturity of 
these financial instruments.

The following table sets forth a reconciliation of changes in the years ended December 31, 2017 and 
2016 in the fair value of the liabilities classified as Level 3 in the fair value hierarchy:

Balance at January 1, 2017
Additions
Unrealized losses, net 
Transfers out of level 3
Balance at December 31, 2017

Balance at January 1, 2016
Additions
Unrealized gains, net 
Transfers out of level 3
Balance at December 31, 2016

Warrant Liabilities

1,573,366
6,738,701
7,594,162
(8,052,594)
7,853,635

Warrant Liabilities

2,739,163
4,364,110
(5,529,907)
-
1,573,366

$

$

$

$

Additions consist of the fair value of warrant liabilities upon issuance.    Transfers out of Level 3 for 
warrant liabilities consist of warrant exercises, where the liability is converted to additional paid-in 
capital upon exercise.    The Company’s policy is to recognize transfers in and transfers out as of the 
actual date of the event or change in circumstance that caused the transfer.

F-32

 
REXAHN PHARMACEUTICALS, INC.
Notes to Financial Statements

17. Select Quarterly Data (Unaudited)

$

$
$
$

$

$

$

Revenues
Expenses
Loss from Operations
Other Income (Expense), net
Net Income (Loss)
Net Income (Loss) per share, basic
Net Income (Loss) per share, diluted

Revenues
Expenses
Loss from Operations
Other Income, net
Net Loss

Net Loss per share, basic and diluted

18.    Subsequent Events

2017
For the Quarter Ended
June 30

March 31

- $

- $

3,953,241
(3,953,241)
(17,657,783)
(21,611,024)$
(0.91)$
(0.91)$

4,283,925
(4,283,925)
5,230,981

947,056 $
0.04 $
0.03 $

September 30 December 31
-
- $
4,898,229
(4,898,229)
1,305,766
(3,592,463)
(0.12)
(0.12)

4,219,322
(4,219,322)
3,181,250
(1,038,072)$
(0.04)$
(0.04)$

2016
For the Quarter Ended
June 30

March 31

- $

- $

4,863,981
(4,863,981)
714,939
(4,149,042)$

3,912,782
(3,912,782)
2,146,958
(1,765,824)$

September 30 December 31
-
- $
3,919,047
(3,919,047)
3,393,564
(525,483)

3,717,575
(3,717,575)
850,579
(2,866,996)$

(0.20)$

(0.08)$

(0.13)$

(0.02)

Since December 31, 2017, the Company granted 701,339 stock options to officers and other employees.

On February 5, 2018, the Company and NEXT BT Co. Ltd., the successor in interest to Rexgene, terminated 
the  research  collaboration  agreement between  the  Company  and  Rexgene. In  exchange  for  Next-BT 
terminating its rights to RX-0201 in Asia, the Company agreed to pay Next-BT a royalty in the low single 
digits  of  any  net  sales  of  RX-0201  the  Company  makes  in  Asia  and  50% of  the  Company’s  licensing 
revenue related to licensing of RX-0201 in Asia, up to an aggregate of $5,000,000.

On February 8, 2018, the Company entered into a research and development collaboration agreement with 
Zhejiang  Haichang  Biotechnology  Co.,  Ltd.  (“Haichang”) under  which  Haichang  will  develop  a  nano-
liposomal formulation of RX-0201 using its proprietary QTzomes™ technology and will conduct certain 
pre-clinical  and  clinical  activities  through  completion  of  a  Phase  2a  proof-of-concept  clinical  study  in 
hepatocellular carcinoma in China.

F-33

 
      CORPORATE INFORMATION 

BOARD OF DIRECTORS  

CORPORATE HEADQUARTERS 

Peter Brandt, Chairman 
Former President and Chief Executive 
Officer,  
Noven Pharmaceuticals 

Charles Beever, Director 
Former Vice President,  
PwC Strategy& 

Mark Carthy, Director 
Managing Partner,  
Orion Equity Partners 

Kwang Soo Cheong, Ph.D., Director 
Associate Professor,  
Johns Hopkins University 

Richard J. Rodgers, Director 
Former Executive Vice President and Chief 
Financial Officer, TESARO 

Peter D. Suzdak, Ph.D., Director 
Chief Executive Officer,  
Rexahn Pharmaceuticals, Inc. 

EXECUTIVE OFFICERS 

Peter D. Suzdak, Ph.D. 
Chief Executive Officer 

Douglas J. Swirsky 
President, Chief Financial Officer and 
Secretary 

Ely Benaim, M.D. 
Chief Medical Officer 

Lisa Nolan, Ph.D. 
Chief Business Officer 

Rexahn Pharmaceuticals, Inc. 
15245 Shady Grove Road, Suite 455 
Rockville, MD 20850 
Phone: 240-268-5300 
www.rexahn.com 

TRANSFER AGENT 

Olde Monmouth Stock Transfer Co., Inc. 
Matthew J. Troster  
200 Memorial Parkway 
Atlantic Highlands, NJ  07716 
Phone: 732-872-2727 

LEGAL COUNSEL 

Hogan Lovells US LLP 
100 International Drive, Suite 2000 
Baltimore, MD 21202 

INDEPENDENT REGISTERED 
PUBLIC ACCOUNTING FIRM  

Baker Tilly Virchow Krause, LLP 
2609 Keiser Blvd 
Wyomissing, PA 19610-3338 

SECURITIES INFORMATION 

Trading Market: NYSE American 
Symbol: RNN 

Stockholders may obtain a copy of our 
annual report or any exhibit to our Form 
10-K free of charge by writing to the 
company at our corporate headquarters 
address above.