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Rexahn Pharmaceuticals, Inc.

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FY2008 Annual Report · Rexahn Pharmaceuticals, Inc.
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Rexahn Pharmaceuticals 

 (cid:190) Corporate Profile 

 Rexahn  is  a  leading  clinical  stage  biopharmaceutical  company 

dedicated to the discovery, development and commercialization of 

innovative  treatments  for  cancer,  central  nervous  system  (CNS) 

disorders, and other unmet medical needs.  Our motto, "Saving Lives 

Through  Innovation,"  represents  the  Company's  use  of  scientific 

innovation  to  improve  the  health  and  wellness  of  patients.   We 

develop therapies that treat specific disease states, while minimizing 

side  effects  in  order  to  help  patients  regain  quality  of  life  during 

treatment. The Company is committed to becoming a market leader 

in  its  therapeutic  segments  with  innovative  and  first-in-class  products  that  improve  quality  of  life 

for patients. 

Rexahn  currently  has  three  Phase  II  clinical  stage  drug  candidates:  ArchexinTM,  SerdaxinTM,  and 

ZoraxelTM.    Our  lead  anticancer  drug  candidate,  Archexin™  is  in  clinical  trials  for  renal  cell 

carcinoma (RCC) and pancreatic cancer, and is a first-in-class inhibitor of the protein kinase Akt. 

Akt  plays  critical  roles  in  cancer  cell  proliferation,  survival,  angiogenesis,  metastasis,  and  drug 

resistance.  We  are  currently  developing  SerdaxinTM 

for 

treatment  of  depression  and 

neurodegenerative disorders.  The Phase II clinical trials for SerdaxinTM were initiated in 2008 and 

are  ongoing  in  2009  for  major  depressive  disorder  (MDD).    SerdaxinTM  increases  availability  of 

neurotransmitters,  serotonin  and  dopamine,  with  mechanisms  different  from  the  current  market 

leaders of reuptake inhibitors such as SSRIs and SNRIs to treat mood disorders derived from both 

negative mood state and loss of positive mood state.  For sexual dysfunction, ZoraxelTM is in Phase 

II clinical trials for patients with erectile dysfunction (ED) and preliminary results will be released in 

the  second  quarter.    ZoraxelTM  is  the  first  centrally  acting  dual  enhancer  of  serotonin  and 

dopamine,  affecting  all  three  phases  of  male  sexual  function,  such  as  sexual  arousal,  erection 

and ejaculation. 

Rexahn is currently traded on the New York Stock Exchange  (NYSE), as a NYSE Amex company, 

under  the symbol “RNN”.   The company  was added to the broad-market Russell 3000 Index as 

part  of  Russell  Investments'  reconstitution  of  its  comprehensive  set  of  U.S.  and  global  equity 

indexes which occurred in June, 2008.  The Russell 3000 Index measures the performance of the 

largest  3,000  U.S.  companies  and  determines  membership  for  its  equity  indexes  primarily  by 

objective,  market-capitalization  rankings  and  style  attributes.  The  Russell  3000  also  serves  as  the 

U.S. component to the Russell Global Index.   

 
 
 
 
Rexahn Pharmaceuticals 

(cid:190)  Corporate Milestones 

Listed on the American Stock Exchange (Amex) and moved to the New York Stock Exchange (NYSE) as 
a NYSE Amex company  

Formation of the Oncology Scientific Advisory Board (SAB) to collaborate on the clinical development 
planning and strategy for its lead cancer drug candidate, Archexin™ 

Added to the broad-market Russell 3000 Index as part of Russell Investments' reconstitution of its 
comprehensive set of U.S. and global equity indexes 

Phase II clinical trial of ArchexinTM, a first-in-class AKT inhibitor, for Renal Cell Carcinoma, 2007-09 and 
Pancreatic Cancer, 2009 

Phase II clinical trial of ZoraxelTM, a CNS-acting enhancer, for treatment of ED, 2008 

Phase II clinical trial of SerdaxinTM, a non-SSRI dual neurotransmitter enhancer, for treatment of major 
depressive disorder, 2008 

Successful development of nano-polymer-based anti-cancer drugs, 2008 

Completed Corporate raise of $8 million through private placement, 2008 

(cid:190)  Awards and Recognition 

Awarded MIPS (Maryland Industrial Partnerships) grant, 2008  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Rexahn Pharmaceuticals 

(cid:190) Pipeline Overview  

Oncology 

According  to  the  American  Cancer  Society’s

Cancer  Facts  &  Figures,  cancer  is  the  second

leading cause of death among Americans and is

responsible  for  one  of  every  four  deaths  in  the

United  States.  Worldwide,  it  is  predicted  that  the

number  of  new  cancer  cases  diagnosed  will  rise

to 16 million annually in 2020, with cancer-related

deaths reaching 10 million in 2020 (Datamonitor). 

Oncology Drug Candidates 

Rexahn is developing targeted cancer drugs that inhibit cancer cell signal transduction involved 

in cancer cell survival and progression. We are also developing anti-cancer nanomedicines that 

potentially offer significant advantages and treatment benefits over conventional chemotherapy, 

in  cancer  patients  through  improved  target  drug  delivery,  reduced  side  effects,  and  greater 

treatment effectiveness. 

ArchexinTM: AKT-1 inhibitor.  ArchexinTM is a first-in-class, potent inhibitor of the Akt-1 protein kinase, 

which  plays  a  key  role  in  cancer  progression  by  stimulating  cell  proliferation  and  cell  survival, 

promoting angiogenesis and being a mechanism for drug resistance. ArchexinTM is the first drug 

that is able to inhibit both activated and native AKT-1, and potentially reverse the drug resistance 

observed with the protein kinase inihibitors. Phase I clinical trials demonstrated that grade 3 (G3) 

fatigue  was  the  only  dose  limiting  toxicity.  No  significant  hematological  effects  or  other  serious 

adverse  events  were  observed.  Phase  II  clinical  trials  are  ongoing  in  patients  with  renal  cell 
carcinoma and pancreatic cancer.  

RX-0047-Nano: HIF-1 Transcription Factor Inhibitor.  RX-0047-Nano is a first-in-class, nanoliposomal 

cancer  drug  that  selectively  inhibits  expression  of  the  HIF-1  transcription  factor.  HIF-1  is  a  key 

signaling  molecule  in  angiogenesis,  cancer  cell  survival  and  invasion,  and  radiation  resistance. 

HIF-1 is over-expressed in several human cancers, which is related to the increased mortality. RX-

0047-Nano  is  expected  to  provide  significant  clinical  benefits  including  improved  efficacy, 

extended circulation time and reduced drug-related toxicity.  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Rexahn Pharmaceuticals 

Nano-polymer  Anticancer  Drugs.  A  major  problem  with  many  cancer  drugs  is  their  limited 

efficacy, severe toxicity and drug resistance. Rexahn’s HPMA-docetaxel and HPMA-gemcitabine 

are expected to achieve the anticancer effects of docetaxel and gemcitabine, respectively, at 

much lower dose levels with significantly fewer side effects and may be able to bypass multi-drug 

resistance.   

RX-0183:  Small  Molecule.    RX-0183  possesses  distinct  molecular  pharmacology  properties  and 

mechanisms to affect specific signaling proteins involved in cancer cell proliferation, survival, and 

angiogenesis, and radiation resistance as well. Study results of RX-0183 indicate its potential as a 

novel small molecule drug that downregulates Akt and c-Fos, and inhibits tumor growth in colon 

cancer xenograft animal models. 

RX-5902: Small molecule microtubule inhibitor.  RX-5902 is a novel small molecule anticancer 

compound that demonstrates significant anti-proliferative activity and belongs to the 

microtubule-cell cycle inhibitor class. RX-5902 has demonstrated in vivo the inhibition of tumor 

growth in animal xenograft models; potent anti-growth activity in drug-resistant cancer cells and 

animal studies; and delayed tumor growth in paclitaxel-resistant colon cancer cells. RX-5902 has 

potential use in combination therapy with known cancer drugs to improve efficacy and 

decrease toxicity to cancer patients, and good PK parameters and bioavailability when given by 

oral route of administration in animal model studies.  

RX-3117: Small molecule anti-metabolite nucleoside.  RX-3117 is an anti-metabolite nucleoside 

compound that has the potential to treat gemcitabine-resistant solid tumors of lung (NSCLC), 

stomach, and colon cancers. In vitro RX-3117 inhibited proliferation of human cancer cells 

derived from several different solid tumors. Further, RX-3117 treated mice xenografted with 

human colon cancer cells demonstrated significantly reduced tumor mass compared to control 

animals. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Rexahn Pharmaceuticals 

Neuroscience  

According  to  the  World  Health  Organization  (WHO),  154  million  cases  of 

depression are reported annually, worldwide. Depression affects 45 million 

people 

in 

the  U.S.  and 

is  a  major  co-morbidity  of  other  CNS 

neurodegenerative  disorders.    Among  the  $95  billion  in  worldwide  CNS 

drug sales, the Parkinson’s disease (PD) and depression markets have high 

unmet needs.  Worldwide PD therapeutic sales are forecast to exceed $2.4 

billion  in  2013,  while  antidepressant  drugs  remain  the  largest  and  most 

mature  market  of  glo

bal  CNS  therapeutics  sales.   

There  are  150  million  estimated  men  with 

erectile  dysfunction  (ED)  worldwide.  In  the  year  2025,  it  is  estimated  that  322  million  men 

worldwide will suffer from some degree of sexual dysfunction.  

Neuroscience Drug Candidates 

Our neuroscience compounds are being developed for neurodegenerative disorders, depression 

and  mood  disorders,  and  to  work  as  a  centrally  acting  therapeutic  for  the  treatment  of  sexual 

dysfunction.  

SerdaxinTM.  SerdaxinTM is a dual enhancer of serotonin and dopamine.  Based on this novel dual 

mechanism,  it  is  a  potential  treatment  for  multiple  CNS  disorders  where  these  neurotransmitters 

are depleted or implicated, such as depression or CNS-based illnesses such as Parkinson’s disease 

and  Alzheimer’s  disease. 

It  has  shown  neuroprotective  effects 

in  the  substantia  nigra, 

hippocampus,  and  nucleus  accumbens  -  areas  of  the  brain  involved  in  neurodegenerative 

diseases.  Studies  to  date  indicate  that  SerdaxinTM  does  not  cause  motor  impairment  and 

cognition deficit, and does not result in insomnia, weight gain, nausea or sexual dysfunction that 

is  linked  with  the  current  standard  of  care,  which  may  potentially  result  in  greater  medication 

compliance. SerdaxinTM addresses unmet needs in the depression market by providing potentially 

faster onset of action, better and broader efficacy and fewer side effects. Phase II clinical trials 

are currently in progress in patients with major depressive disorder. 

ZoraxelTM.    ZoraxelTM  is  a  centrally  acting  drug  candidate  for  treatment  of  erectile  dysfunction 

(ED).  It is a dual enhancer of neurotransmitters in the brain that play a key role in sexual activity 

phases of motivation and arousal, erection and release, and may be the first ED drug to affect all 

three  of  these  phases  of  sexual  activity.    Unlike  PDE-5  inhibitors,  which  are  limited  to  working 

peripherally  with  a  mechanical  vasodilating  action  and  have  numerous  side  effects,  ZoraxelTM 

works in the CNS and has extensive and well-established safety in humans. Phase II clinical trials 

are ongoing in patients with erectile dysfunction. 

 
  
 
 
 
 
 
Rexahn Pharmaceuticals 

(cid:190) Letter from the Chairman  

Dear Shareholders: 

2008 marked another year of significant progress for Rexahn, 

and we are very pleased with the clinical and organizational 

strides  that  we  have  made.  While  the  global  financial  crisis 

reduced 

the  valuations  of  many  companies 

in 

the 

biopharmaceutical  space,  we  are  encouraged  by  the 

resilience  that  companies  with  solid  strategies  and  diverse 

clinical  pipelines  have  shown.  At  Rexahn  we  have  worked 

diligently  to  ensure  that  we  have  the  right  strategies  and  people  in  place,  and  we 

have already begun to see value from these efforts. 

We  started  2008  off  on  a  very  positive  note,  with  the  announcement  that  we  had 

completed  $8  million in  a private  placement  of  our  common  stock.  This  placement 

was  done  with  a  group  of  accredited  investors  in  Korea,  and  the  proceeds  were 

used  for  the  continued  development  of  our  clinical  pipeline.  This  pipeline  includes 

three  of  what  we  see  as  the  most  promising  compounds  in  the  biopharmaceutical 

arena, and ones that we feel, once brought to market, will fill a treatment void that 

has  been  created  by  the  current  standard  of  care.  As  many  of  you  know,  these 

compounds are, Zoraxel™ for the treatment of erectile dysfunction (ED), Serdaxin™, 

for the treatment of major depressive disorder, and Archexin™, for the treatment of 

renal cell carcinoma and pancreatic cancer.  

We  have  made  very  good  progress  with  these  compounds,  with  each  currently 

undergoing phase II trials. Archexin™, our flagship drug, is a targeted cancer therapy 

with the potential to deliver less toxic, more effective, better-tolerated treatment to 

patients  with  solid  tumors.  Archexin  stands  apart  from  other  targeted  or  cytotoxic 

cancer drugs in that it is the first and only inhibitor of both the activated and native 

forms  of  Akt,  a  protein  kinase  essential  for  tumor  growth  and  progression.    Another 

key differentiator is Archexin’s ability to impact the drug resistance that is developed 

by treatment with current targeted therapies.   

SerdaxinTM  is  a  potential  market  leading  CNS  neuroprotective  agent,  as  well  as 

antidepressant.  Serdaxin  is  being  developed  as  an  orally  administered,  extended 

release  tablet  for  the  treatment  of  depression  and  anxiety,  but  based  on  its  novel 

 
  
 
 
 
 
 
Rexahn Pharmaceuticals 

actions  as  a  dual  serotonin  and  dopamine  enhancer,  it is  a  potential  treatment  for 

multiple CNS disorders, such as Parkinson’s disease and Alzheimer’s disease. Zoraxel is 

being  developed  as  an  orally  administered  tablet  for  on-demand  use,  and  acts 

through  the  central  nervous  system  that  regulates  all  phases  of  sexual  functions, 

whereas  traditional  PDE-5  inhibitors  work  in  the  peripheral  blood  vessels  and  affect 

only  erectile  function.  With  these  promising  and  potentially  lucrative  compounds  in 

place,  we  also  worked  to  ensure  that  we  were  making  equal  progress  on  the 

corporate side.   

We  were  very  happy  to  have  successfully  made  the  jump  to  the  American  Stock 

Exchange in 2008, as this move exposed us to a new and broader class of investors, 

and served to augment both our exposure and liquidity. In addition, we were added 

to  the  broad-market  Russell  3000  Index  as  part  of  Russell  Investments  June  2008 

reconstitution  of  their  comprehensive  set  of  U.S.  and  global  equity indexes.  We  feel 

that  both  of  these  accomplishments  represented  significant  milestones  for  us,  and 

we intend to build on this momentum.     

We have also made a very conscious decision to bolster our internal team, recruiting 

Rick  Soni  as  Chief  Business  Officer  in  July,  2008.  Rick  joined  Rexahn  after  serving  as 

Director  of  Commercialization  and  Business  Development  at  Otsuka  America 

Pharmaceuticals,  Inc,  and  brought  over  20  years  of  marketing  and  business 

development  experience  in  pharmaceutical  industry  to  his  new  role.  He  has  also 

held variety of management positions at Novartis and Schering-Plough, and we are 

excited to have someone of Rick’s caliber on board with our team.  

We  were  also  happy  to  bring  an  extremely  qualified  team  of  advisors  on  board 

during  the  course  of  the  year.  Currently  Archexin  is  guided  by  our  new  oncology 

scientific advisory board, chaired by Margaret Tempero, MD, Deputy Director of the 

UCSF Helen Diller Family Comprehensive Cancer Center, and former President of the 

American Society of Clinical Oncology (ASCO).  

Finally,  in  order  to  ensure  that  the  Rexahn  investment  story  and  the  promise  of  our 

pipeline  do  not  get  lost  amidst  the  noise  of  the  global  economic  slowdown,  we 

retained KCSA Strategic Communications and Base Pair Communications to help us 

improve  our  shareholder  communications  and  expand  our  shareholder  base.  We 

recognized  that  the  need  for  transparent  and  consistent  communication  is  even 

greater during a bear market, as quality high growth opportunities become few and 

 
 
 
 
 
Rexahn Pharmaceuticals 

far  between.  With  this  in  mind,  we  are  working  diligently  to  improve  our  outreach 

efforts.  

I  am  confident  that  the  financial  markets  will  right  themselves  in  due  course.  Until 

then,  we  will remain  focused  on  the  maintenance  and  growth  of  our  business,  and 

will  remain  poised  to  take  advantage  of  any  opportunities  that  may  arise.  Our 

confidence  comes  from  our  belief  in  the  strength  of  our  compounds,  and  the 

knowledge and skill set of the team that we have put in place.  

On  behalf  of  our  Board  and  our  employees,  I  would  like  to  thank  you  all  for  your 

continued support. 

Sincerely, 

Chang H. Ahn, Ph.D. 
Chairman and CEO 

 
 
 
 
 
 
 
 
 
 
 
 
UNITED STATES SECURITIES AND EXCHANGE COMMISSION 
Washington, D.C. 20549  
Form 10-K 

(cid:59)  

(cid:134)  

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES 
EXCHANGE ACT OF 1934  
  For the fiscal year ended December 31, 2008  

OR  
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE 
SECURITIES EXCHANGE ACT OF 1934  
  For the transition period from          to            

Commission file number: 000-50590 
Rexahn Pharmaceuticals, Inc.  
(Exact name of registrant as specified in its charter)  

Delaware  
(State or other jurisdiction of 
incorporation or organization)  

9620 Medical Center Drive 
Rockville, Maryland 
(Address of principal executive offices)  

11-3516358  
(I.R.S. Employer 
Identification No.)  

20850 

(Zip Code)  

 (240) 268-5300 
(Registrant’s telephone number, including area code)  
Securities registered pursuant to Section 12(b) of the Exchange Act:  

Title of Each Class  
Common Stock, $.0001 par value per share  

NYSE Alternext US 
Securities registered pursuant to Section 12(g) of the Exchange Act:  
None  

   Name of Each Exchange on Which Registered 

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:134)     No (cid:59)  

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by 

Section 13 or 15(d) of the Exchange Act 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:134)  

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-

accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” 
“accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):  

Large accelerated filer (cid:134) Accelerated filer  (cid:59)  Non-accelerated filer (cid:134) Smaller reporting company (cid:59)
                                                                  (Do not check if a smaller reporting company)  
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the 

Exchange Act).  Yes (cid:134)     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, 2008, the aggregate market value of the registrant’s common 
stock held by non-affiliates of the registrant was $116,568,697 based on the closing price reported 
on NYSE Alternext US.  

Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of 

the latest practicable date:  

Class  

Outstanding at March 16, 2009  

Common Stock, $.0001 par value per share  

56,025,649 shares  

DOCUMENTS INCORPORATED BY REFERENCE  

Document  

Parts Into Which Incorporated  

Portions of the registrant’s Proxy Statement for the 
Annual Meeting of Stockholders to be held on June 
1, 2009  

Part III  

ii 

  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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.  
Actual  results  may  differ  materially  from  those  projected  as  a  result  of  certain  risks  and  uncertainties, 
including but not limited to the following:  

• 

• 

• 

• 

• 

• 

• 

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

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

successful and timely completion of clinical trials for our drug candidates; 

demand for and market acceptance of our drug candidates; 

the availability of qualified third-party researchers and manufacturers for our drug development 
programs; 

our ability to develop and obtain protection of our intellectual property; 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.    The  safe  harbors  for  forward-looking  statements  provided  by  the  Private 
Securities  Litigation  Reform Act  are  unavailable  to  issuers  of  "penny  stock."    Our  shares  may  be 
considered a penny stock and, as a result, the safe harbors may not be available to us. 

iii 

 
  
 
 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 

INDEX  

PAGE 

PART I .......................................................................................................................................................... 5 
Item 1.  Description of Business ............................................................................................................ 5 
Item 1A.  Risk Factors.......................................................................................................................... 19 
Item 1B.  Unresolved Staff Comments................................................................................................ 30 
Item 2.  Description of Property.......................................................................................................... 30 
Item 3.  Legal Proceedings ................................................................................................................... 31 
Item 4.  Submission of Matters to a Vote of Security Holders.......................................................... 31 

PART II....................................................................................................................................................... 32 

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

Purchases of Equity Securities ........................................................................................... 32 
Item 6.  Selected Financial Data .......................................................................................................... 33 
Item 7.  Management's Discussion and Analysis of Financial Condition and 

Results of Operation ........................................................................................................... 33 
Item 7A.  Quantitative and Qualitative Disclosures About Market Risk........................................ 44 
Item 8.  Financial Statements and Supplementary Data................................................................... 44 
Item 9. Changes In and Disagreements With Accountants on Accounting and 

Financial Disclosure ............................................................................................................ 44 
Item 9A.  Controls and Procedures..................................................................................................... 44 
Item 9B.  Other Information ............................................................................................................... 46 

PART III ..................................................................................................................................................... 49 
Item 10.  Directors, Executive Officers and Corporate Governance ............................................... 49 
Item 11.  Executive Compensation...................................................................................................... 49 
Item 12. Security Ownership of Certain Beneficial Owners and Management and 

Related Stockholder Matters.............................................................................................. 49 

Item 13.  Certain Relationships and Related Transactions; and Director 

Independence ....................................................................................................................... 49 
Item 14.  Principal Accounting Fees and Services ............................................................................. 50 
Item 15.  Exhibits, Financial Statement Schedules............................................................................ 51 

SIGNATURES............................................................................................................................................ 54 

iv 

  
 
 
Item 1.  Description of Business. 

PART I 

Any  references  to  "we",  "us",  "our,"  the  "Company"  or  "Rexahn"  shall  mean  Rexahn 

Pharmaceuticals, Inc. 

We are a clinical stage biopharmaceutical company dedicated to the discovery, development, and 
commercialization  of  innovative  treatments  for  cancer,  central  nervous  system  (CNS)  disorders,  sexual 
dysfunction  and  other  unmet  medical  needs.    We  develop  therapies  that  make  it  possible  to  regain 
normalcy for patients suffering from disease.  We have three drug candidates in Phase II clinical trials this 
year and six or more other drug candidates in pre-clinical development.  We intend to leverage our drug-
discovery technologies, scientific expertise and developmental know-how to develop and commercialize 
targeted  cancer  drugs  with  greater  clinical  benefits  for  patients  and  new  drugs  for  the  treatment  of 
diseases  of  the  central  nervous  system  and  sexual  dysfunction.    We  will  continue  to  identify  internally 
developed compounds as potential drug candidates, as well as assess compounds developed by others and, 
if necessary, license the rights to these compounds in order to develop and commercialize them as drugs.  
For a description of our pipeline drug candidates, see "Our Pipeline Drug Candidates" in this Item 1. 

Our  principal  corporate  offices  are  located  at  9620  Medical  Center  Drive,  Rockville, 

Maryland 20850 in Maryland's I-270 technology corridor.  Our telephone number is (240) 268-5300. 

Rexahn currently has three clinical stage drug candidates: ArchexinTM, SerdaxinTM, and ZoraxelTM. 
Our  lead  anticancer  drug  candidate,  Archexin™  is  in  Phase  II  clinical  trials  for  renal  cell  carcinoma 
(RCC) and pancreatic cancer, and is a first-in-class inhibitor of the protein kinase Akt. Akt plays critical 
roles  in  cancer  cell  proliferation,  survival,  angiogenesis,  metastasis,  and  drug  resistance.    Archexin™ 
received "orphan drug" designation from the U.S. Food and Drug Administration (FDA) for five cancer 
indications (RCC, glioblastoma, ovarian cancer, stomach cancer and pancreatic cancer).  The FDA orphan 
drug program enables expedited FDA review or approval process, seven years of marketing exclusivity 
after approval and tax incentives for clinical research. 

We  are  currently  developing  SerdaxinTM  for  treatment  of  depression  and  neurodegenerative 
disorders.  The Phase II clinical trials for SerdaxinTM are ongoing in 2009 for major depressive disorder 
  SerdaxinTM  increases  availability  of  neurotransmitters,  serotonin  and  dopamine,  with 
(MDD). 
mechanisms  different  from  the  current  market  leaders  of  reuptake  inhibitors such  as  SSRIs  and  SNRIs. 
SerdaxinTM  possesses  excellent  neuroprotective  ability  as  demonstrated  against  neurotoxin-induced 
neurodegeneration  models    and  in  a  Parkinson’s  model.  Considering  over  60%  of  Parkinson’s, 
Alzheimer’s,  and  Multiple  Sclerosis  patients  are  suffering  from  depression  as  a  co-morbidity, 
SerdaxinTM’s effectiveness in both depression and neuroprotection may make it a potential market leader 
for treatment of the neurological diseases. 

We are also developing ZoraxelTM for treatment of sexual dysfunction. ZoraxelTM is in Phase II 
clinical trials for male erectile dysfunction and preliminary results are expected in early 2009.  It is the 
first centrally acting dual enhancer of serotonin and dopamine, key neurotransmitters affecting all phases 
of male sexual function, such as sexual arousal, erection and ejaculation.  

Further,  Rexahn  leverages  its  proprietary  nanomedicine  research  and  platforms  of  TIMES  (The 
Inhibitors of Multi-Expression Signals) and 3D-GOLD (3-D Gateway Of Ligand Discovery) technology, 
to strengthen and expand its innovative pipelines, which offer greater therapeutic benefits and quality of 
life for patients. 

5 

 
 
 
 
 
 
 
 
 
 
Company Background 

Our company resulted from a merger of Corporate Road Show.Com Inc., originally a New York 
corporation  ("CPRD"),  and  Rexahn,  Corp,  a  Maryland  corporation  immediately  after  giving  effect  to 
a 1-for-100  reverse  stock  split  and  the  reincorporation  of  CPRD  as  a  Delaware  corporation  under  the 
name  "Rexahn  Pharmaceuticals,  Inc."  ("Rexahn  Pharmaceuticals"),  with  Rexahn,  Corp  surviving  as  a 
wholly owned operating subsidiary of ours (the "Merger").  The Merger was effective as of May 13, 2005.  
On  September 29,  2005,  Rexahn,  Corp,  was  merged  with  and  into  us  and  Rexahn,  Corp's  separate 
existence was terminated. 

Rexahn, Corp was founded in March 2001 and began as a biopharmaceutical company focusing 
on oncology drugs.  Dr. Chang Ahn, our Chairman, a former U.S. Food and Drug Administration (FDA) 
reviewer,  and  National  Cancer  Institute  (NCI)  research  scientist,  helped  guide  initial  research  and 
commercialization  efforts  in  targeted  cancer  drugs.    Our  mission  is  to  discover,  develop  and  market 
innovative therapeutics that address unmet medical needs. 

Industry and Disease Markets  

Overview 

Our research and development focuses on several therapeutic areas that affect the lives of many 
people—cancer, CNS neurodegenerative disorders (such as Parkinson’s disease), depression and related 
mood disorders, and sexual dysfunction.  These disorders can have a debilitating effect on the quality of 
life for patients who suffer from them.  Our strategy is to develop drugs that satisfy unmet needs in the 
market and help patients regain quality of life by providing innovative therapeutics. 

According to the Center 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.  In 2008, 
the National Institute of Cancer estimated that $228 billion was spent in medical costs in the United States.  
Worldwide, it is predicted that the number of new cancer cases diagnosed will rise to 16 million annually 
in  2020,  with  cancer-related  deaths  reaching  10  million  in  2020. 1 Global  sales  of  cancer  drugs  are 
predicted  to  grow  to  $60  billion  by  2010,  driven  mainly  by  commercialization  of  molecular  targeted 
therapies.2  

Among the $95 billion in worldwide CNS drug sales for 2007, the Parkinson’s disease (PD) and 
depression markets have high unmet needs. PD is a progressive neurodegenerative disorder where loss of 
body control stems from death of CNS dopaminergic neurons in the substantia nigra, resulting in patients 
being  unable  to  direct  or  control  movements  in  a  normal  manner.  There  are  300,000  estimated  U.S. 
incident  cases  of  PD,  and  over  1.5  million  PD  cases  worldwide.  Worldwide  PD  therapeutic  sales  are 
forecast  to  exceed  $2.4  billion  in 2013.  Growth  drivers  include  drug  combinations,  reformulations,  and 
indication expansions.  

Depression  affects  45  million  people  in  the  U.S.  and  is  a  major  co-morbidity  of  other  CNS 
neurodegenerative disorders.  Patients with these neurological disorders have a host of symptoms beyond 

1 Cancer, 2007 (Datamonitor). 
2 Pipeline Insight: Cancer Overview Emerging Therapeutic and Market Opportunities, July 2006 (Datamonitor). 

6 

 
 
 
 
 
 
 
 
 
 
 
                                                 
those  directly  related  to  their  neurological  condition.  These  “associated”  symptoms  include  psychiatric 
disturbances such as depression, anxiety and cognitive impairment and significantly impact quality of life 
for millions of patients suffering from the neurological disorders.  Antidepressant sales worldwide were 
$19 billion in 2007.3  Current antidepressants focus on reuptake inhibitors and serotonin-based drugs as a 
first-line treatment. Many depression patients are refractory to the various classes of antidepressants and 
suffer from severe side effects. Unmet needs include faster time to onset of action (current antidepressants 
taking up to six weeks for effect); fewer side effects; greater medication compliance; and higher efficacy 
and lower relapse rates.4 

Erectile dysfunction (ED) is defined as the consistent inability to attain and maintain an erection 
sufficient for satisfactory sexual intercourse.5 There are 150 million estimated men with ED worldwide. 
In the year 2025, it is estimated that 322 million men worldwide will suffer from some degree of sexual 
dysfunction.6  Worldwide sales for ED drugs were $3 billion in 2007.7  ED is estimated to affect up to 30 
million men in the United States8, with 52% of men between the ages of 40 and 70 reporting difficulty 
with erectile function.9 While the phosphodiesterase type-5 (PDE-5) inhibitors are the standard of care in 
ED drugs, several unmet needs remain. About 30% of patients are refractory to PDE-5 inhibitors. Further, 
PDE-5 inhibitors are limited to working peripherally only, and targeting end-organ effect with mechanical 
vasodilating  action.  PDE-5  inhibitors  have  significant  drawbacks  of  cardiovascular  risks,  and  potential 
severe  side  effects  such  as  priapism,  severe  hypotension,  myocardial  infarction,  and  ventricular 
arrhythmias. 

Current Cancer Treatments 

The life-threatening nature of cancer, and the various ways of trying to cure cancer to save lives, 
has led to treatment(s) with surgery, radiation therapy, and chemotherapy. Surgery is widely used to treat, 
and in many cases cure cancer; however, there may be related or significant complications and surgery 
may be ineffective if metastasis has occurred.  Radiation therapy, or radiotherapy, can be highly effective.  
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.    Cytotoxic  cancer  drugs  destroy  cancer  cells  by  interfering  with  various  stages  of  the  cell 
division  process.    However,  many  current  cytotoxic  chemotherapy  drugs  have  limited  efficacy  and 
debilitating adverse side effects and may result in the development of multi-drug resistance. 

Unmet Needs in Cancer  

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

including:  

3 IMS Report 2007; CNS Drug Discoveries, 2008 by ESPICOM 

4 Commercial Insight: Depression, June 2007; Stakeholder Insight: Major Depressive Disorder (MDD), March 2006 (Datamonitor). Delay in onset of relief is associated with 

SSRIs and SNRIs, MAOIs, and TCAs  (selective serotonin or serotonin-norepinephrine reuptake inhibitors, monoamine oxidase inhibitors, tricyclic antidepressants). The SSRIs 

are linked to side effects insomnia, weight gain, and sexual dysfunction.  Medication compliance rates range from 40% to 65%. The proportion of patients achieving remission 

after antidepressant treatment ranges from 35% to 55% depending on severity of depression. 

5 NIH Consensus Development Panel and Conference: Impotence. JAMA 1993; 270:83-90. 

6 Ayta et al. The likely worldwide increase in erectile dysfunction between 1995 and 2025. BJU Int. 1999; 84:50-56. 

7 Pharmaventures, PharmaDeals May 2005: 16-17. 

8 Benet and Melman. The epidemiology of erectile dysfunction. Urol Clin North Am 1995; 22:699–709. 

9 Feldman, et al. Impotence and its medical and psychosocial correlates: Results of the Massachusetts Male Aging Study. J. Urol. 1994; 151:54–61. 

7 

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

•  Multi-drug  resistance:  Multi-drug  resistance  is  a  major  obstacle  in  successful  clinical 

outcomes. 

•  Debilitating  toxicity  by  chemotherapy:  Chemotherapy  as  a  mainstay  of  cancer  treatment 

induces severe adverse reactions and toxicities, affecting quality of life or life itself. 

Archexin™:  First-in-class Anticancer Akt Inhibitor 

ArchexinTM  is  a  first-in-class,  potent  inhibitor  of  the  Akt-1  protein  kinase  in  cancer  cells. 
ArchexinTM has FDA orphan drug designations for five cancers (RCC, glioblastoma, and cancers of the 
ovary,  stomach  and  pancreas).  Multiple  indications  for  other  solid  tumors  can  also  be  pursued. 
ArchexinTM is differentiated by its ability to inhibit both activated and inactivated forms of Akt, and to 
potentially  reverse  the  drug  resistance  observed  with  the  protein  kinase  inhibitors.  Other  targeted  drugs 
may  only  inhibit  inactivated  Akt  and  be  vulnerable  to  development  of  drug  resistance.    Akt  activation 
plays  a  key  role  in  cancer  cell  proliferation,  survival,  angiogenesis  and  drug  resistance.  Akt  is  over-
activated  in  many  human  cancers  (e.g.,  breast,  colorectal,  gastric,  pancreatic,  prostate,  and  melanoma 
cancers). A method to control the Akt activity involves inhibition of signaling molecules upstream of Akt 
in cancer cells (e.g., EGFR or VEGFR inhibitors). In this case, only the activity of native Akt is indirectly 
affected. However, signal transmission for cancer progression and resistance occurs when Akt is activated, 
thus  inhibition  of  the  activated  Akt  becomes  more  important.  ArchexinTM  inhibits  both  activated  and 
native Akt. 

ArchexinTM  is  an  antisense  oligonucleotide  (ASO)  compound  that  is  complementary  to  Akt 
mRNA, and highly selective for inhibiting mRNA expression and production of Akt protein.  ArchexinTM 
has demonstrated excellent safety, tolerability and minimal side effects in a Phase I study in patients with 
advanced  cancers,  where  Grade  3  (G3)  fatigue  was  the  only  dose-limiting  toxicity  and  no  significant 
hematological abnormalities were observed. The main objectives of the Phase I study were to determine 
maximum tolerated dose (MTD), dose limiting toxicity, and PK parameters for Archexin™ monotherapy. 
The  Archexin™  Phase  I  study  design  was  an  open  label,  single  arm  ascending  dose,  safety  and 
tolerability study. 

Archexin™  Phase  II  trials  for  RCC  have  been  extended.  There  are  over  200,000  RCC  cases 
worldwide and 40,000 U.S. cases annually. Expected peak sales of the RCC drugs Nexavar and Sutent are 
$750  million  and  $1.5  billion,  respectively.  Only  20%  of  metastatic  RCC  tumors  respond  to  standard 
therapy, leaving 80% of advanced RCC patients with no effective treatment. Further, up to 30 to 50% of 
RCC stage I to stage III patients relapse following treatment. Once metastatic disease develops, five-year 
survival is low and ranges from 0% to 20%.10   

Archexin™ has been issued a U.S. patent that covers composition of matter and broad claims for 
the  nucleotide  sequences  of  the  antisense  compounds  that  target  and  inhibit  the  expression  of  Akt  in 
human tissues or cells, and the method of using the compounds to induce cytotoxicity in cancer cells. 

10 Mekhail et al, 2005. 

8 

 
 
 
 
 
 
 
 
 
                                                 
Current CNS Treatments 

The U.S. National Institute of Mental Health (NIMH) estimates that 26 percent of adults, or more 
than  55  million  Americans,  suffer  from  a  diagnosable  mental  disorder  in  a  given  year.  The  depression 
market  is  one  of  the  more  mature  and  established  markets  in  CNS  therapeutics.  Current  treatments  for 
depression focus on serotonin-based drugs (e.g., selective serotonin reuptake inhibitors, SSRIs) as a first-
line treatment. Many depression patients are refractory to the various classes of antidepressants and suffer 
from severe side effects. 

Unmet Needs in CNS Disorders: Major Depressive Disorder (MDD) 

Unmet needs for treating Major Depressive Disorder (MDD) include11 the following: 

•  Faster onset of action. Current antidepressants take four to six weeks to relieve depression 
symptoms. The delay in onset of antidepressant activity is associated with the most common 
antidepressant  drug  classes  including:  selective  serotonin  reuptake  inhibitors  (SSRIs), 
serotonin-norepinephrine  reuptake 
inhibitors 
(MAOIs), and tricyclic antidepressants (TCAs). 

inhibitors  (SNRIs),  monoamine  oxidase 

•  Fewer side effects. The most widely used antidepressants, SSRIs, are linked with side effects 
of  insomnia,  weight  gain  and  sexual  dysfunction.  The  safety  of  SSRIs  has  also  been  called 
into  question  over  concerns  about  inducing  suicidal  ideations.  Use  of  benzodiazepines  is 
linked with side effects of cognitive deficit and motor impairment. 

• 

Improved  compliance.  High  rate  of  serious  side  effects  among  patients  taking  anti-
depressant drugs leads many to stop taking the prescribed medicines, resulting in high non-
compliance rates of 40% to 65%. 

•  Need  for  greater  efficacy.    Remission  is  one  key  objective  of  depression  treatment.    The 
proportion of patients achieving remission after antidepressant treatment ranges from 35% to 
55% depending on the severity of depression.12  New drugs with much higher efficacy as well 
as wider coverage of the depression patients are needed. 

•  Reduced MDD relapse.  High relapse rate of about 35% and lingering symptoms are serious 

problems in antidepressant treatment. 

Serdaxin™: CNS Drug to Treat Neurodegenerative Disorders, Depression, and Mood Disorders 

SerdaxinTM is a potential market leading CNS neuroprotective agent and antidepressant. Based on 
its novel actions as a dual serotonin and dopamine enhancer, it is a potential treatment for multiple CNS 
disorders  where  these  neurotransmitters  are  depleted  or  implicated  in  CNS-based  illnesses  such  as 
Parkinson’s  disease  and  depression.  It  has  shown  neuroprotective  effects  in  the  substantia  nigra, 

11 Depression, June 2007; Stakeholder Insight: Major Depressive Disorder (MDD), March 2006 (Datamonitor).

12 Remission rates tend to vary based on factors such as: treatment algorithm and drugs prescribed, patient geographic population 
or country, prescribing doctor (primary care, psychiatrist), and time at which remission rates are measured (3, 6, 8, or 10 weeks 
of treatment). Depression, June 2007; MDD, March 2006 (Datamonitor). 

9 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
                                                 
 
hippocampus, and nucleus accumbens- areas of the brain involved in neurodegenerative diseases. Among 
lead  indications,  Rexahn  is  conducting  a  Phase  IIa  clinical  trial  of  Serdaxin™  to  treat  depression.  The 
study  goals  include  assessment  of  preliminary  efficacy,  and  will  recruit  up  to  100  patients  with  major 
depressive  disorder  (MDD)  in  a  multi-center,  randomized,  double  blind,  dose  ranging  and  placebo-
controlled trial. Main endpoints include the HAM-D and MADRS depression rating scales.  Serdaxin™ 
will be administered as an oral, extended release tablet. Clinical programs are also planned in Parkinson’s 
and biodefense uses.  

SerdaxinTM  has  well-established  and  extensive  safety  in  humans,  and  appears  to  have  excellent 
tolerability and few side effects. It may realize its greatest potential as a neuroprotective agent that further 
addresses  the  morbidity  of  depression  and  mood  disorders  that  are  linked  to  CNS  illnesses  of  the 
neurodegenerative  category,  such  as  PD  and  Alzheimer’s  disease.  In  regards  to  PD,  Serdaxin™  has 
shown  in  animal  models  that  it  has  the  potential  to address  both  non-motor  and  motor  events  of  PD  in 
humans,  by  treating  depleted  dopamine  levels  that  lead  to  loss  of  control  of  movements;  and  further, 
enhancing serotonin and dopamine levels that are involved in depression and mood disorders. Serdaxin™ 
may achieve greater and broader therapeutic coverage, and appears to have no cognition deficit and side 
effects such as nausea, vomiting, insomnia, weight gain, and sexual dysfunction that are linked to existing 
drugs. 

Current Sexual Dysfunction Treatment 

The  launch  of  Viagra®  in  1998  as  the  first  orally  available  phosphodiesterase  PDE-5  inhibitor 
established a new standard of care for ED. The majority of ED drugs in the R&D pipeline work by a ‘me-
too’ PDE-5 inhibitor mechanism of action.13 Dopamine agonists are also in clinical trials for ED.14 

Unmet Needs in Sexual Dysfunction 

There  are  potential  severe  side  effects  associated  with  PDE-5  drugs,  such  as  priapism,  severe 
hypotension, myocardial infarction, sudden death, increased intraocular pressure and sudden hearing loss. 
PDE-5 inhibitors only target end organ erectile function, and work in peripheral blood vessels. Beyond 
the PDE-5 inhibitors, there is currently no single class of ED drugs to dominate the market.22 

•  Need for Greater Efficacy- An estimated 30% of US men are refractory to the leading PDE-
5  inhibitor  drugs  (Viagra®,  Cialis®,  and  Levitra®),  which  work  peripherally  and 
mechanically.  

•  Reduced  Side  Effects-  Certain  segments  of  the  ED  patient  population  that  respond  less  to 
PDE-5  inhibitors  include  diabetics,  obese  or  post-surgical  prostatectomy  or  coronary  risk 
patients.i PDE-5 inhibitors have significant drawbacks of cardiovascular risks and other side 
effects  (e.g.,  priapism,  severe  hypotension,  myocardial  infarction,  ventricular  arrhythmias, 
sudden death and increased intraocular pressure). 

Zoraxel™: Drug Candidate to Treat Erectile Dysfunction (ED) Sexual Dysfunction 

ZoraxelTM is centrally acting in the CNS and may be a more effective ED treatment for patients 
who  are  responsive  or  unresponsive  to  PDE-5  inhibitors.  ZoraxelTM  is  being  developed  as  an  orally 

13 Erectile Dysfunction, 2006 (Datamonitor). 
14 Gresser U and Gleiter CH. Erectile Dysfunction: Comparison of efficacy and side effects of the PDE-5 inhibitors sildenafil, 

vardenafil and tadalafil (Review of Literature). Eur J Med Res (2002) 7:435-46. 

10 

 
 
 
 
 
 
 
 
 
                                                 
administered, on-demand tablet to treat sexual dysfunction, and has extensive and well-established safety 
in humans. Zoraxel™ is a dual enhancer of neurotransmitters in the brain that play a key role in sexual 
activity phases of motivation and arousal, erection and release, and may be the first ED drug to affect all 
three  of  these  phases  of  sexual  activity.  In  preclinical  animal  studies,  ZoraxelTM  significantly  improved 
sexual  performance  and  suggested  positive  behavioral  effects.  Enrollment  in  the  Zoraxel™  Phase  IIa 
clinical trial for treatment of Erectile Dysfunction (ED) has been completed. The trial was a double blind, 
placebo-controlled, dose ranging study conducted at three U.S. study sites in up to 50 male subjects ages 
18 to 65 with ED for six months. Main study endpoints for the 8-week treatment period were the Sexual 
Encounter  Profile  (SEP)  and  the  International  Index  of  Erectile  Function  (IIEF),  both  of  which  are 
validated surveys for assessing erectile function. 

Market Opportunity 

There  are  several  favorable  environmental  factors  for  commercializing  new  cancer,  CNS  and 

sexual dysfunction drugs that may be first-in-class or market leaders, including: 

•  Favorable  Environment  for  Formulary  Access  and  Reimbursement.    Cancer  drugs  with 
proven efficacy or survival benefit, and cost-effective clinical outcomes would be expected to 
gain rapid market uptake, formulary listing and payer reimbursement. In addition, drugs that 
have orphan designations are generally reimbursed by insurance companies given that there 
are few, if any, alternatives.  Because mental disorders affect more than 55 million estimated 
Americans,  the  burden  of  illness  is  significant  for  insurance  companies  as  well  as  for 
employers.    Given  the  significant  cost  of  treating  behavioral  health  problems,  there  is  a 
favorable  environment  for  formulary  access  and  reimbursement  for  effective  products  that 
treat multiple disorders. 

•  Focus  on  Specialty  Markets.    The  marketing  of  new  drugs  to  specialty  physicians  can  be 
accomplished  with  a  specialty  sales  force  that  requires  fewer  personnel  and  lower  related 
costs  than  a  typical  sales  force  that  markets  to  primary  care  physicians  and  general 
practitioners.  

•  Expedited  Regulatory  or  Commercialization  Pathways.    Drugs  for  life-threatening  diseases 
such  as  cancer  are  often  treated  by  the  FDA  as  candidates  for  fast  track,  priority  and 
accelerated  reviews.    Expedited  regulatory  review  may  lead  to  clinical  studies  that  require 
fewer patients, or expedited clinical trials. Our lead products, Serdaxin™ and Zoraxel™, are 
also  expected  to  have  expedited  or  shortened  clinical  development  timelines  because  their 
active  pharmaceutical  ingredient,  or  API,  have  extensive  and  well  established  safety  in 
humans. 

Our Strategy 

Our strategy has several key components: 

Develop innovative therapeutics with the potential to be first-in-class or market leaders 

We plan to expand our R&D pipeline and introduce more new drugs into clinical trials over the 
next five years, and develop an industry-leading oncology therapeutics franchise.  Our pipeline spans the 
major  classes  of  cancer  drugs  –  molecular  targeted  therapies,  signal  transduction  and  multi-kinase 
inhibitors,  nano-medicines,  and  small  molecule  cytotoxics  (microtubule  inhibitors,  quinazoline  and 
nucleoside  analogues).  Differentiated  target  product  profiles,  and  proprietary  discovery  and  research 
technology platforms further support these strategic efforts. Further, we plan to commercialize neurology 

11 

 
 
 
 
 
 
 
 
 
 
 
and psychiatry drugs for growing CNS markets. Rexahn has exclusive patent and development rights to a 
portfolio of CNS compounds that are repurposed and adaptable for development in multiple indications, 
including Parkinson’s disease, depression, and neurodegenerative disorders. 

Target Signal Transduction Molecules with Multiple Drug Candidates 

We  plan  to  expand  our  oncology  drug  candidate  pipeline  and  introduce  several  new  signal 
inhibitor drugs into clinical trials over  the next five years.  By identifying and characterizing the genes 
and proteins that control the signaling pathways and gene expression of cancer cells, we seek to develop 
DNA/RNA-based  and  small-molecule  drugs  to  treat  a  broad  range  of  diseases  caused  by  abnormal 
expression or functions of those genes and proteins.   

Establish Partnerships with Large Pharmaceutical Companies 

We seek to establish strategic alliances and partnerships with large pharmaceutical companies. To 

date, we have not entered into such agreements with any large pharmaceutical companies. 

Clinically Develop Drug Candidates as Orphan Drugs to Reduce Time-to-Market 

Under  the  Orphan  Drug  Act,  the  FDA  may  expedite  approval  of  new  drugs  that  treat  diseases 
affecting less than 200,000 patients each year.  This category of diseases is called an "orphan indication".  
Incentives  in  the  Orphan  Drug  Act  include  a  faster  time-to-market  of  the  drug  (with  FDA  approval 
possible after Phase II trials instead of Phase III trials) and seven years of drug marketing exclusivity for 
the sponsor. We plan to develop drug candidates initially for orphan category cancers in order to reduce 
the time-to-market. 

In-License Unique Technology 

We continually review opportunities to in-license and advance compounds in oncology and other 
strategic therapeutic areas that have value creating potential and will strengthen our R&D pipeline.  For 
example,  in  February 2005,  we  licensed  the  intellectual  property  of  Revaax  Pharmaceuticals  LLC 
("Revaax") to develop new drugs for treatment of CNS and mood disorders.  As a result of this licensing 
agreement, we have now advanced Serdaxin™ and Zoraxel™ into Phase II clinical trials for depression 
and sexual dysfunction patients.  

Capitalize  on  Our  Management  Team’s  Expertise 
Commercialization 

for  Drug  Development  and  Product 

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

Our Pipeline Drug Candidates 

We have three clinical stage drug candidates, and several more pre-clinical drugs, including the 

following: 

Clinical Stage Pipeline 

12 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(1)  Archexin™: First-in-class anticancer Akt inhibitor 

(2)  Serdaxin™: Antidepressant and CNS Disorders drug 

(3)  Zoraxel™: Erectile Dysfunction (ED) and sexual dysfunction drug 

Pre-clinical Pipeline 

(1) RX-0201-Nano: Nanoliposomal anticancer Akt-1 inhibitor 

(2) RX-0047-Nano: Nanoliposomal anticancer HIF-1 alpha inhibitor 

(3) Nano-polymer Anticancer Drugs: HPMA-docetaxel and HPMA-gemcitabine 

(4) RX-0183: Small molecule targeted anticancer drug candidate 

(5) RX-5902: Small molecule microtubule inhibitor anticancer drug candidate 

(6) RX-3117: Small molecule anti-metabolite nucleoside anticancer drug candidate 

We have discussed our clinical stage pipeline in detail above. 

Pre-clinical Pipeline 

Our pre-clinical pipeline includes: 

(1) RX-0201-Nano: Nanoliposomal anticancer Akt-1 inhibitor 

RX-0201,  the  active  ingredient  of  ArchexinTM,  is  a  first-in-class,  potent  inhibitor  of  the  Akt-1 
protein kinase. RX-0201-Nano is a nanoliposomal product of RX-0201 with high incorporation efficiency 
and  good  stability.  Nanoliposomal  delivery  of  RX-0201  may  provide  significant  clinical  benefits 
including  targeted  higher  cellular  uptake,  extended  circulation  time,  reduced  drug-related  toxicity,  and 
improved efficacy. IND-enabling studies are planned for 2009. 

(2) RX-0047-Nano: Nanoliposomal anticancer HIF-1α inhibitor 

RX-0047-Nano  is  a  nanoliposomal  cancer  drug  candidate  that  selectively  inhibits  expression  of 
the HIF-1α transcription factor. HIF-1α is a key signaling molecule in angiogenesis, cancer cell survival 
and  invasion,  and  radiation  resistance.    RX-0047  is  a  first-in-class  anticancer  candidate  that  directly 
inhibits  HIF-1α,  which  is  over-expressed  in  a  broad  range  of  human  cancers,  and  associated  with 
increased  cancer  mortality  and  resistance.  In  pre-clinical  studies,  RX-0047  significantly  downregulated 
expression of HIF-1α mRNA and protein. At nanomolar concentrations, RX-0047 inhibited proliferation 
of  cancer  cells  from  human  solid  tumors  and  growth  of  implanted  tumors  in  lung  and  prostate  cancer 
xenograft  animal  models,  and  reversed  resistance  in  radiation-resistant  cancer  cells.  RX-0047-Nano  is 
expected  to  provide  significant  clinical  benefits  including  targeted  higher  cellular  uptake,  extended 
circulation time, reduced drug-related toxicity, and improved efficacy.  

(3) Nano-polymer Anticancer Drugs- HPMA-docetaxel and HPMA-gemcitabine 

A  major  problem  with  many  cancer  drugs  is  their  lack  of  tumor  specificity  and  dose-limiting 
toxicity.  Nano-polymer  conjugated  drugs  may  deliver  drugs  more  precisely  to  tumor  tissues  with  less 

13 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
toxic effects. Rexahn’s HPMA-docetaxel and HPMA-gemcitabine are expected to achieve the anticancer 
effects of docetaxel and gemcitabine, respectively, at much lower dose levels with significantly fewer side 
effects.  

(4) RX-0183: Small molecule targeted anticancer drug candidate 

RX-0183 possesses distinct molecular pharmacology properties and mechanisms to affect specific 
signaling  proteins  involved  in  cancer  cell  proliferation,  survival,  and  angiogenesis,  and  radiation 
resistance  as  well.  Study  results  of  RX-0183  indicate  its  potential  as  a  novel  small  molecule  drug  that 
downregulates Akt and c-Fos, and inhibits tumor growth in colon cancer xenograft animal models. 

(5) RX-5902: Small molecule microtubule inhibitor anticancer drug candidate 

RX-5902  is  a  novel  small  molecule  anticancer  compound  that  demonstrates  significant  anti-
proliferative activity and belongs to the microtubule-cell cycle inhibitor class. RX-5902 has demonstrated 
in  vivo  the  inhibition  of  tumor  growth  in  animal  xenograft  models;  potent  anti-growth  activity  in drug-
resistant cancer cells and animal studies; and delayed tumor growth in paclitaxel-resistant colon cancer 
cells.  RX-5902  has  potential  use  in  combination  therapy  with  known  cancer  drugs  to  improve  efficacy 
and decrease toxicity to cancer patients, and good PK parameters and bioavailability when given by oral 
route of administration in animal model studies.  

(6) RX-3117: Small molecule anti-metabolite nucleoside anticancer drug candidate 

RX-3117 is an anti-metabolite nucleoside compound that has the potential to treat gemcitabine-
resistant  solid  tumors  of  lung  (NSCLC),  stomach,  and  colon  cancers.  In  vitro  RX-3117  inhibited 
proliferation of human cancer cells derived from several different solid tumors. Further, RX-3117 treated 
mice  xenografted  with  human  colon  cancer  cells  demonstrated  significantly  reduced  tumor  mass 
compared to control animals. 

Competition 

We are developing new drugs to address unmet medical needs in oncology, CNS disorders, and 
sexual  dysfunction  markets.    Our  drug  candidates  will  be  competing  with  products  and  therapies  that 
either currently exist or are expected to be developed.  Competition among these products will be based 
on factors such as product efficacy, safety, price, launch timing and execution.  Our competitive position 
will also depend upon our ability to attract and retain qualified personnel, to obtain patent protection or 
otherwise  develop  proprietary  products  or  processes,  and  to  secure  sufficient  capital  resources  for  the 
often substantial period between technological conception and commercial sales. 

There are a number of pharmaceutical and biotechnology companies that are conducting research 
and  development  on  technologies  and  products  for  treatment  of  cancers,  CNS  diseases  and  sexual 
dysfunction.  Our competitors may succeed in developing products based on novel technologies that are 
more  effective  than  ours,  which  could  render  our  technology  and  products  noncompetitive  prior  to 
recovery by us of expenses incurred with respect to those products. 

Our  competitors  may  include  major  pharmaceutical,  specialized  biotechnology  firms,  and 
academic  and other research institutions.  Many of our competitors have substantially greater financial, 
technical  and  human  resources  than  we  do.    In  addition,  many  of  our  competitors  have  significantly 
greater  experience  than  we  do  in  undertaking  pre-clinical  testing  and  human  clinical  trials  of  new 
pharmaceutical products and obtaining FDA and other regulatory approvals of products for use in health 
care. 

14 

 
 
  
  
  
  
  
 
 
 
As  we  expand  our  drug  development  programs  to  include  diseases  other  than  cancer,  CNS  and 
sexual  dysfunction,  we  will  also  face  competition  from  pharmaceutical  and  biotechnology  companies 
conducting  research  and  development  on  products  for  treatment  of  those  other  diseases,  increasing  our 
competition.  For many of the same reasons described above, we cannot assure you that we will compete 
successfully. 

Government Regulation 

Regulation by governmental authorities in the United States and in other countries constitutes a 
significant  consideration  in  our  product  development,  manufacturing  and  marketing  strategies.    We 
expect  that  all  of  our  drug  candidates  will  require  regulatory  approval  by  appropriate  governmental 
agencies  prior  to  commercialization  and  will  be  subjected  to  rigorous  pre-clinical,  clinical,  and  post-
approval testing, as well as to other approval processes by the FDA and by similar health authorities in 
foreign  countries.    U.S. federal  regulations  control  the  ongoing  safety,  manufacture,  storage,  labeling, 
record keeping, and marketing of all biopharmaceutical products intended for therapeutic purposes.  We 
believe that we are in compliance in all material respects with currently applicable rules and regulations. 

Obtaining governmental approvals and maintaining ongoing compliance with federal 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  building  our  own  internal  infrastructure  for  long-term  corporate 
growth. 

The  process  by  which  biopharmaceutical  compounds  for  therapeutic  use  are  approved  for 
commercialization in the United States is lengthy.  Many other countries have instituted equally difficult 
approval  processes.    In  the  United  States,  regulations  published  by  the  FDA  require  that  the  person  or 
entity sponsoring and/or conducting a clinical study for the purpose of investigating a potential biological 
drug  product's  safety  and  effectiveness  submit  an  IND  application  to  the  FDA.    These  investigative 
studies are required for any drug product for which the product manufacturer intends to pursue licensing 
for  marketing  the  product  in  interstate  commerce.    If  the  FDA  does  not  object  to  the  IND  application, 
clinical testing of the compound may begin in humans after a 30-day review period.  Clinical evaluations 
typically are performed in three phases. 

In Phase I, the drug is administered to a small number of healthy human subjects or patients to 
confirm  its  safety  and  to  develop  detailed  profiles  of  its  pharmacological  and  pharmacokinetic  actions 
(i.e., absorption, metabolism, excretion, duration of therapeutic concentration and effects, if any). 

In Phase II, the drug is administered to groups of patients (up to a total of 500) to determine its 
preliminary efficacy against the targeted disease and the requisite dose and dose intervals.   In a typical 
development  program,  additional  animal  toxicology  studies  precede  this  phase.    Some  Phase I  clinical 
studies may also proceed in parallel with some Phase II studies. 

In  Phase  III,  the  drug  is  administered  to  a  larger  group  of  patients  (usually  1,000  to  3,000  or 
more)  by  physicians  (study  site  investigators)  in  a  network  of  participating  clinics  and  hospitals.    The 
extensive clinical testing is intended to confirm Phase II results and to document the nature and incidence 
of adverse reactions.  Studies also are performed in patients with concomitant diseases and medications.  
While  larger  patient  populations  are  evaluated  in  Phase  III  at  multiple  study  sites,  many  clinical  trial 
programs or registration studies could be conducted concurrently for the sake of time and efficiency. 

15 

 
 
 
 
 
 
 
 
 
 
After  completing  the  IND  clinical  studies,  the  product  developer  submits  the  safety  and 
effectiveness data generated by the studies to the FDA in the form of a New Drug Application (NDA) to 
market the product.  It is the legal responsibility of the FDA to review the proposed product labeling, the 
pre-clinical  (animal  and  laboratory)  data,  the  clinical  data,  as  well  as  the  facilities  utilized  and  the 
methodologies employed in the manufacture of the product which have been submitted to the agency to 
determine whether the product is safe and effective for its intended use. 

Even  after  initial  FDA  approval  has  been  obtained,  further  studies  may  be  required  to  provide 
additional data on safety or to gain approval for expanded labeling or treatment indications.   Also, the 
FDA  may  require  post-marketing  testing  and  surveillance  programs  to  monitor  the  drug's  effects.    Side 
effects resulting from the use of drug products may prevent or limit the further marketing of the products. 

For  marketing  outside  the  United  States,  we  will  be  subject  to  foreign  regulatory  requirements 
governing  human  clinical  trials  and  marketing  approval  for  drugs.    The  requirements  relating  to  the 
conduct  of  clinical  trials,  product  licensing,  pricing  and  reimbursement  vary  widely  from  country  to 
country. 

Certain drugs are eligible in the United States for designation by the FDA as "orphan" drugs if 
their  use  is  intended  to  treat  a  disease  that  affects  less  than  200,000 persons  in  the  U.S. or  the  disease 
affects more than 200,000 persons in the United States but there is no reasonable expectation that the cost 
of developing and marketing a drug will be recovered from the  U.S. sales of such drug.  In order for a 
sponsor to obtain orphan designation for a drug product, an application must be submitted for approval to 
the  FDA's  Office  of  Orphan  Products  Development.    The  approval  of  an  application  for  orphan 
designation  is  based  upon  the  information  submitted  by  the  sponsor.    A  drug  that  has  obtained  orphan 
designation is said to have "orphan status".  The approval of an orphan designation request does not alter 
the standard regulatory requirements and process for obtaining marketing approval.  Safety and efficacy 
of a compound must be established through adequate and well-controlled studies. 

Orphan  drugs  may  obtain  FDA  approval  after  successful  Phase  II  trials,  rather  than  after 
completion  of  Phase  III  trials,  resulting  in  faster  time-to-market  for  those  drugs.    If  a  sponsor  obtains 
orphan drug designation for a particular compound and is the first to obtain FDA regulatory approval of 
that compound, then that sponsor is granted marketing exclusivity for a period of seven years. 

Sales and Marketing 

Rexahn plans to commercialize unique and differentiated drugs that are first-in-class or potential 
market leaders. We may develop cancer drugs for orphan indications initially, and then expand into more 
highly prevalent cancers. Currently, ArchexinTM has Orphan drug designation for five cancer indications. 
For drugs that require larger pivotal trials and/or large sales force, Rexahn seeks alliances and corporate 
partnerships  with  larger  pharmaceutical  firms.  We  also  seek  acquisition  or  in-licensing  candidates  to 
strengthen our product pipeline. 

Research Technologies  

Our research technologies are focused on our proprietary multi-target aimed ligands platform and 
nano-based  drug  delivery.  For  a  discussion  of  collaboration  arrangements  pursuant  to  which  we  obtain 
research  and  development  services  from  universities,  research  institutions  and  other  organizations,  see 
"Collaboration and License Agreements" in this item. 

TIMES (The Inhibitors of Multi-Expression Signals) 

16 

 
 
 
 
 
 
 
 
 
 
Rexahn  has  developed  a  unique  ligand  discovery  platform  targeting  multi-expression  signals. 
Since  cancer  is  a  complex  disease  caused  by  multiple  factors  as  well  as  genetic  modifications,  cancer 
treatment involves a combination of drugs with different mechanisms of action, which compound degree 
and  extent  of  toxicities.    The  Rexahn  approach  is  to  control  multiple  targets  important  for  cancer 
proliferation with a single agent. In doing so, Rexahn utilizes a proprietary, genomics-based integrated, 
gene expression system to identify potentially important targets that control multiple genes or signaling 
events in cancer cells.  

3-D GOLD (3-D Gateway of Ligand Discovery) 

3D-GOLD  is  a  drug  discovery  platform  that  integrates  3-D  natures  of  molecular  modeling, 
databases of chemicals and proteins, and ligand filtering and generation. Chemical database contains 3D 
structures  of  about  5  million  compounds.  Rexahn’s  proprietary  QSID  (Quantitative  structure-activity 
relationship tool for Innovative Discovery) and docking tools are parts of the platform. Filtering module 
is  a  powerful  component  to  determine  similarity  in pharmacophore  and  3D  fingerprinting, while  ligand 
generation helps optimize the leads. 

Nano-medicine Drug Delivery  

Rexahn  has  developed  unique  proprietary  drug  delivery  nano-systems  that  may  increase  the 
availability  of  a  drug  at  the  disease  site,  minimize  adverse  reactions,  and/or  provide  longer  duration  of 
action.    Rexahn  is  currently  testing  multiple  nanoliposomal-  and  nanopolymer-based  anticancer  drugs.  
Rexahn was awarded grants from MIPS (Maryland Industrial Partnerships) and is collaborating with the 
Center for Nanomedicine of University of Maryland to accelerate the development of its proprietary nano 
technologies and nano products. 

Manufacturing 

We  do  not  currently  have  the  resources  required  for  commercial  manufacturing  of  our  drug 
candidates.  We currently outsource the manufacturing of drug substances and drug products for our drug 
candidates.    We  have  no  current  plans  to  build  internal  manufacturing  capacity  for  any  product.  
Manufacturing  will  be  accomplished 
large 
pharmaceutical companies. 

through  partnerships  with 

through  outsourcing  or 

Intellectual Property (IP) 

Proprietary  patent  and  IP  protection  for  our  drug  candidates,  processes  and  know-how  is 
important to our business.  We aggressively prosecute and defend our patents and proprietary technology.  
Rexahn has several U.S. and international patents issued for broad IP coverage of our drug candidates in 
cancer, CNS, behavioral and mood disorders, neuroprotection and sexual dysfunction.  Additional U.S., 
Europe,  and  foreign  patents  are  pending.  We  also  rely  upon  trade  secrets,  know-how,  continuing 
technological innovation and licensing opportunities to develop and maintain our competitive position. 

In  March 2005,  we  licensed-in  CNS-related  intellectual  property from  Revaax  Pharmaceuticals, 
LLC.  The intellectual property rights acquired cover use of certain compounds for anxiety, depression, 
aggression, cognition, Attention Deficit Hyperactivity Disorder, neuroprotection and sexual dysfunction.  
See "Collaboration and License Arrangements" in this Item for additional information. 

17 

 
 
 
 
 
 
Collaboration and License Arrangements 

We  have  numerous  collaborative  research  and  development  relationships  with  universities, 

research institutions and other organizations.  A description of these material relationships is below  

UPM  Pharmaceuticals,  Inc.  ("UPM").    On  April  3,  2006,  we 
entered into an agreement with UPM to develop product formulations 
for  Serdaxin™  and  Zoraxel™,  respectively.    In  addition,  we  also 
entered into 10 additional attachments to the original agreement as of 
December 31, 2008.  

Korean  Research  Institute  of  Bioscience  and  Biotechnology 
("KRIBB").  On April 1, 2006, we entered into a research agreement 
with  KRIBB 
toxicology, 
pharmacokinetics  and  mechanisms  of  action  for  RX-5902.    This 
project was completed as of December 31, 2008. 

anti-tumor 

evaluate 

activity, 

to 

Ewha  Womans  University  ("Ewha").    On  March  1,  2004,  we 
entered into an agreement with Ewha to collaborate with and sponsor 
Ewha's research in the area of carbocyclic nucleoside, which relates to 
our  anticancer  drug  discovery  efforts.    Intellectual  property  made  or 
developed in the course of this agreement is or will be owned by us.  
In  March  1,  2006,  we  entered  into  another  research  program  with 
Ewha.  This project was completed as of December 31, 2008. 

Korea  Research  Institute  of  Chemical  Technology  ("KRICT").  
On  June  1,  2005,  we  entered  into  a  joint  research  agreement  with 
KRICT  with  respect  to  research  regarding  protein  kinases  in  human 
cancer diseases.  The research term expired in early 2006.  Intellectual 
property made or developed under this agreement is jointly owned by 
us  and  KRICT.    On  March  1,  2007,  we  entered  into  a  research 
agreement with KRICT with respect to research regarding evaluation 
of  plasma  pharmacokinetics  of  RX-10100  in  male  Beagle  dogs.  
Inventions or discoveries made or developed under this agreement is 
solely owned by us.  This project was completed as of December 31, 
2008. 

The  University  of  Maryland  ("UMD").    On  March  15,  2005,  we 
entered  into  a  Maryland  Industrial  Partnership  agreement  with  the 
Biotechnology  Institute  of  UMD  to  collaborate  with  and  sponsor 
UMD's  research  in  the  area  of  ligand  screening  for  novel  anticancer 
therapeutics.    Intellectual  property  made  or  developed  under  this 
agreement  is  jointly  owned  by  us  and  UMD.    This  project  was 
completed as of December 31, 2008.  

The University of Maryland Baltimore (“UMB”).  On February 1, 
2007,  we  entered  into  a  Maryland  Industrial  Partnership  agreement 
with the UMB to collaborate with and sponsor the joint development 
of  polymer-drug  conjugates  for  cancer  therapy,  for  the  targeted 
delivery  of  cancer  drugs.    Intellectual  property  made  or  developed 

18 

 
 
 
 
 
 
 
 
under this agreement is jointly owned by us and UMB.  This project is 
currently on-going. 

Revaax Pharmaceuticals LLC ("Revaax").  On February 10, 2005, 
we licensed on an exclusive basis, with the right to sublicense, all of 
the  intellectual  property  of  Revaax,  which  includes  four  patents  and 
multiple  patent  applications,  with  respect 
to  certain  chemical 
structures that have demonstrated in pre-clinical research the potential 
to  treat  certain  behavioral  disorders,  such  as  anxiety,  depression  and 
cognitive disorders.  This agreement expires upon the expiration of the 
royalty  term  for  all  licensed  products  in  all  countries,  which  is  no 
earlier  than  August  2020  and  could  extend  to  August  2024.    This 
agreement provides for an initial license fee  and  milestone payments 
based on the initiation of pivotal trials for disease treatment indication 
for  licensed  products.    Furthermore,  we  will  pay  Revaax  a  specified 
fee  for  each  licensed  product  under  the  agreement  upon  receipt  of 
marketing  approval  for  the  licensed  product.    Notwithstanding  the 
milestone payment arrangement described above, we are not obligated 
to  make  any  milestone  payment  with  respect  to  milestone  events  for 
which we receive sublicense revenues and are obligated to pay Revaax 
a percentage of such sublicense revenues, as well as royalties for sales 
of licensed products based on net sales of the licensed products. 

Formatech,  Inc.  ("Formatech").    On  August  17,  2004  we  entered 
into  an  agreement  with  Formatech  to  monitor  and  perform  stability 
studies  on  our  drug  candidate,  Archexin™.    On  January  3,  2006  and 
March  29,  2006,  we  contracted  with  Formatech 
to  perform 
experiments on Archexin™ dosage form and concentrations. 

Employees 

We  currently  have  14  full-time  employees,  all  of  whom  are  based  at  our  Rockville,  Maryland 
office.    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. 

Item 1A.  Risk Factors. 

You should carefully consider the risks described below together with the other information included in 
this  Annual  Report  on  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. 

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  and  other  regulatory  authorities  for  our  drug 
candidates, we cannot sell our drugs and will not have product revenues.  Therefore, for the foreseeable 

19 

 
 
 
 
 
 
 
 
 
 
 
 
future, we will have to fund all of our operations and capital expenditures from the net proceeds of equity 
or debt offerings we may make, cash on hand, licensing fees and grants.  Through the end of 2009, we 
expect  to  spend  approximately  $1.2  million  on  clinical  development  for  Phase  II  clinical  trials  of 
Archexin™, Serdaxin™ and Zoraxel™, and the development of preclinical compounds, $2.4 million on 
general  corporate  expenses  and  approximately  $113,000  on  facilities  rent.    We  will  need  to  raise 
additional money through debt and/or equity offerings in order to continue to develop our drug candidates.  
If  we  are  not  able  to  raise  sufficient  additional  money,  we  will  have  to  reduce  our  research  and 
development  activities.    We  will  first  reduce  research  and  development  activities  associated  with  our 
preclinical  compounds.    To  the  extent  necessary,  we  will  then  reduce  our  research  and  development 
activities related to some or all of our clinical drugs. 

Additionally,  changes  may  occur  that  would  consume  our  existing  capital  at  a  faster  rate  than 
projected, including but not limited to, 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 Phase I clinical trials for other new drug candidates, as well as other 
research and development projects, which together with the current operating plan for the next year, could 
aggregate up to $3.6 million through the end of 2009.   

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. 

We  have  generated  no  revenues  to  date  from  product  sales.    Our  accumulated  deficit  as  of 
December 31,  2008  and  2007  was  $29,906,479  and  $24,994,331,  respectively.    For  the  years  ended 
December 31, 2008 and 2007, we had net losses of $4,912,148 and $4,304,005 respectively, primarily 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.  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: 

• 

• 

• 

• 

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

efforts to seek regulatory approvals for our drug candidates; 

implementing additional internal systems and infrastructure; 

licensing in additional technologies to develop; and 

20 

 
 
 
 
 
 
 
 
 
 
•  hiring additional personnel. 

We also expect to continue to experience negative cash flow for the foreseeable future as we fund 
our operating losses and capital expenditures.  Until we have the capacity to generate revenues, we are 
relying upon outside funding resources to fund our cash flow requirements. 

We have a limited operating history. 

We  are  a  development-stage  company  with  a  limited  number  of  drug  candidates.    To  date,  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 
perform a variety of functions, including, but not limited to: 

• 

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  our  company,  acquiring, 
developing  and  securing  our  proprietary  technology,  drug  candidate  research  and  development  and 
undertaking,  through  third  parties,  pre-clinical  trials  and  clinical  trials  of  our  principal  drug  candidates.  
These operations provide a limited basis for assessment of our ability to commercialize drug candidates. 

We  may  not  obtain  the  necessary  U.S. or  worldwide  regulatory  approvals  to  commercialize  our  drug 
candidates. 

We will need FDA approval to commercialize our drug candidates in the U.S. and approvals from 
the FDA-equivalent regulatory authorities in foreign jurisdictions to commercialize our drug candidates in 
those jurisdictions.  In order to obtain FDA approval of our drug candidates, we must submit to the FDA a 
New Drug Application ("NDA") demonstrating that the drug candidate is safe for humans and effective 
for its intended use.  This demonstration requires significant research and animal tests, which are referred 
to as pre-clinical studies, as well as human tests, which are referred to as clinical trials.  Satisfaction of the 
FDA's  regulatory  requirements  typically  takes  many  years,  and  depends  upon  the  type,  complexity  and 
novelty  of  the  drug  candidate  and  requires  substantial  resources  for  research,  development  and  testing.  
We  cannot  predict  whether  our  research  and  clinical  approaches  will  result  in  drugs  that  the  FDA 
considers safe for humans and effective for indicated uses.  Two of our drug candidates, Archexin™ and 
RX-0047, are ASO compounds.  To date, the FDA has not approved any NDAs for any ASO compounds.  
In addition, each of Archexin™, RX-0201-nano and RX-0047-nano is of a drug class (Akt inhibitor, in 
the case of Archexin™ and RX-0201-nano, and HIF inhibitor, in the case of RX-0047) that has not been 
approved by the FDA to date, nor have we submitted such NDA.  After the clinical trials are completed, 
the FDA has substantial discretion in the drug approval process and may require us to conduct additional 
pre-clinical and clinical testing or to perform post-marketing studies. 

In  foreign  jurisdictions,  we  must  receive  approval  from  the  appropriate  regulatory  authorities 
before we can commercialize our drugs.  Foreign regulatory approval processes generally include all of 
the risks associated with the FDA approval procedures described above.  We cannot assure you that we 

21 

 
 
 
 
 
 
 
 
 
 
 
 
will  receive  the  approvals  necessary  to  commercialize  our  drug  candidates  for  sale  outside  the  United 
States. 

Our drug candidates are in early stages of clinical trials. 

Our drug candidates are in an early stage of development and require extensive clinical testing, 
which  are  very  expensive,  time-consuming  and  difficult  to  design.    In  2007,  Archexin™,  an  oncology 
drug candidate, entered Phase II clinical trials. In 2008, we initiated Phase II clinical trial of Zoraxel™, 
sexual  dysfunction  drug  candidate,  and  received  FDA  approval  to  initiate  Phase  II  clinical  trial  of 
Serdaxin™, drug candidate for depression and other CNS disorders. 

Clinical trials are very expensive, time-consuming and difficult to design and implement. 

Human clinical trials are very 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.  
We  estimate  that  clinical  trials  of  our  current  drug  candidates  will  take  up  to  three  years  to  complete.  
Furthermore, failure can occur at any stage of the trials, and we could encounter problems that cause us to 
abandon or repeat clinical trials.  The commencement and completion of clinical trials may be delayed by 
several factors, including, but not limited to: 

•  unforeseen safety issues; 

•  determination of dosing issues; 

• 

• 

• 

• 

• 

lack of effectiveness during clinical trials; 

reliance on third party suppliers for the supply of drug candidate samples; 

slower than expected rates of patient recruitment; 

inability to monitor patients adequately during or after treatment; 

inability or unwillingness of medical investigators and institutional review boards to follow 
our clinical protocols; and 

• 

lack of sufficient funding to finance the clinical trials. 

In  addition,  we  or  the  FDA  may  suspend  clinical  trials  at  any  time  if  it  appears  that  we  are 
exposing  participants  to  unacceptable  health  risks  or  if  the  FDA  finds  deficiencies  in  our  IND 
submissions or the conduct of these trials. 

If  the  results  of  our  clinical  trials  fail  to  support  our  drug  candidate  claims,  the  completion  of 
development  of  such  drug  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  our  results  will 
support our drug candidate claims.  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 our drug candidates are safe for humans and effective for indicated uses.  This failure 

22 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
would cause us to abandon a drug candidate and may delay development of other drug candidates.  Any 
delay  in,  or  termination  of,  our  clinical  trials  will  delay  the  filing  of  our  NDAs  with  the  FDA  and, 
ultimately,  delay  our  ability  to  commercialize  our  drug  candidates  and  generate  product  revenues.    In 
addition, our trial designs may involve a small patient population.  Because of the small sample size, the 
results of early clinical trials may not be indicative of future results. 

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: 

• 

awareness of the 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 product relative to competing products; 

• 

• 

availability of reimbursement for our products from government or other healthcare payers; 

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. 

Much of our drug development program depends upon third-party researchers, and the results of our 
clinical trials and such research activities are, to a limited extent, beyond our control. 

We  depend  upon  independent  investigators  and  collaborators,  such  as  universities  and  medical 
institutions, to conduct our pre-clinical and clinical trials and toxicology studies.  This business practice is 
typical for the pharmaceutical industry and companies like us.  For example, the Phase I clinical trials of 
Archexin™  were  conducted  at  the  Lombardi  Comprehensive  Cancer  Center  of  Georgetown  Medical 
Center  and  the  University  of  Alabama  at  Birmingham,  with  the  assistance  of  Amarex,  LLC,  a 
pharmaceutical clinical research service provider who is responsible for creating the reports that will be 
submitted to the FDA.  We also relied on TherImmune Research Corporation (now named Bridge Global 
Pharmaceutical Services, Inc.), a discovery and pre-clinical service provider, to summarize Archexin™ 's 
pre-clinical data.  While we make every effort internally to oversee their work, these collaborators are not 
our employees and we cannot control the amount or timing of resources that they devote to our programs.  
These investigators may not assign priority to our programs or pursue them as diligently as we would if 
we  were  undertaking  such  programs  ourselves.  For  example,  we  have  a  billing  dispute  on  the  work 
performance and expenses with Amarex, LLC for clinical trials.  The dispute might cause a delay of the 
program  or  increase  our  costs  associated  with  the  program.    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, if any, and our introduction of new drugs, if any, may be delayed.  
The risk of completion or delay of these studies is not within our direct control and a program delay may 

23 

 
 
 
 
 
 
 
 
 
 
 
 
occur due to circumstances outside our control.   A delay in any of these programs  may not necessarily 
have a direct impact on our daily operations.  However, to the extent that a delay results in additional cost 
to us, a higher than expected expense may result.  These 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 expose 
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.  Internally, we lack the resources 
and  expertise  to  formulate  or  manufacture  our  own  drug  candidates.    Therefore,  we  rely  on  third  party 
expertise  to  support  us  in  this  area.    For  example,  we  have  entered  into  contracts  with  third-party 
manufacturers  such  as  Raylo  Chemicals  Inc.,  Formatech,  Inc.,  Avecia  Biotechnology  Inc.  and  UPM 
Pharmaceuticals, Inc. 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  will  rely  on  these  or  other 
third-party contractors to manufacture our drugs.  Our reliance on third-party manufacturers exposes us to 
the following potential risks: 

•  We may be unable to identify manufacturers on acceptable terms or at all because the number 
of potential manufacturers is limited and the FDA must approve any replacement contractor.  
This  approval  would  require  new  testing  and  compliance  inspections.    In  addition,  a  new 
manufacturer would have to be educated in, or develop substantially equivalent processes for, 
the production of our products after receipt of FDA approval, if any. 

•  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 needs and commercial needs. 

•  Our  contract  manufacturers  may  not  perform  as  agreed  or  may  not  remain  in  the  contract 
manufacturing  business  for  the  time  required  to  supply  our  clinical  trials  or  to  successfully 
produce, store and distribute our products. 

•  Drug manufacturers are subject to ongoing periodic unannounced inspection by the FDA, the 
Drug  Enforcement  Agency  ("DEA"),  and  corresponding  state  agencies  to  ensure  strict 
compliance  with  good  manufacturing  practice  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  be  ultimately  responsible  for 
any of their failures. 

• 

If  any  third-party  manufacturer  makes  improvements  in  the  manufacturing  process  for  our 
products,  we  may  not  own,  or  may  have  to  share,  the  intellectual  property  rights  to  the 
innovation. 

Each  of  these  risks  could  delay  our  clinical  trials,  drug  approval  and  commercialization  and 

potentially result in higher costs and/or reduced revenues. 

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

24 

 
 
 
 
 
 
 
 
 
 
 
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 globally develop 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 having sales, marketing and distribution capabilities, the collaborator's strategic interest in the 
products  under  development  and  such  collaborator's  ability  to  successfully  market  and  sell  any  such 
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 
technical 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 its 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. 

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

We will compete against fully integrated pharmaceutical companies and smaller companies that 
are  collaborating  with  larger  pharmaceutical  companies,  such  as  Keryx  Biopharmaceuticals,  Genta 
Incorporated  and  Imclone  Systems  Incorporated,  as  well  as  academic  institutions,  government  agencies 
and other public and private research organizations. In addition, 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: 

•  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  such  as  Bristol-Myers  Squibb,  Eli-Lilly,  Novartis  and  Glaxo-
SmithKline  currently  sell  both  generic  and  proprietary  compounds  for  the  treatment  of  cancer.    In 
addition, companies pursuing different but related fields represent substantial competition.  Many of these 
organizations  have  substantially  greater  capital  resources,  larger  research  and  development  staff  and 
facilities,  longer  drug  development  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. 

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 to obtain and maintain patent protection for our products, methods, processes and 

25 

 
 
 
 
 
 
 
 
 
 
 
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 filed 
U.S. and  PCT  patent  applications  for  anti-Akt  compounds,  including  Archexin™  and  anti-HIF 
compounds,  including  RX-0047.    In  November 2006,  we  were  granted  a  U.S. patent  for  our  anti-Akt 
compounds,  including  Archexin™.    The  patent  covers  the  nucleotide  sequences  of  the  antisense 
compounds that target and inhibit the expression of Akt in human tissues or cells.  The patent also covers 
the  method  of  using  the  compounds  to  induce  cytotoxicity  in  cancer  cells.    We  have  also  filed  three 
U.S. provisional  patent  applications  for  new  anticancer  quinazoline  compounds,  new  anticancer 
nucleoside products and a drug target, cenexin, a polo-box binding protein.  In December 2004, we also 
filed  two  Korean  patent  applications  for  new  anticancer  piperazine  compounds.    Through  our  licensing 
agreement  with  Revaax,  we  hold  exclusive  rights  to  five  patents  and  multiple  patent  applications,  with 
respect to certain chemical structures related to antibiotics, but without antibiotic efficacy.  However, we 
cannot predict: 

• 

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

• 

if and when patents will issue; 

•  whether  or  not  others  will  obtain  patents  claiming  aspects  similar  to  those  covered  by  our 

licensed patents and patent applications; or 

•  whether we will need to initiate litigation or administrative proceedings which may be costly 

whether we win or lose. 

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 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. 

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

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

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

•  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 the patents held by others, which could cause us to 
lose the use of one or more of our drug candidates; 

26 

 
 
 
 
 
 
 
 
 
 
 
•  pay damages; or 

•  defend litigation or administrative proceedings which may be costly whether we win or lose, 

and which could result in a substantial diversion of our management resources. 

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

Our license agreement with Revaax may be terminated in the event we commit a material breach, the 
result of which would significantly harm our business prospects. 

Our license agreement with Revaax is subject to termination by Revaax if we materially breach 
our obligations under the agreement, including breaches with respect to certain installment payments and 
royalty payments, if such  breaches are  not cured within a 60-day period.  The agreement also provides 
that it may be terminated if we become involved in a bankruptcy, insolvency or similar proceeding.  If 
this  license  agreement  is  terminated,  we  will  lose  all  of  our  rights  to  develop  and  commercialize  the 
licensed compounds, including Serdaxin™ and Zoraxel™, which would significantly harm our business 
and future prospects. 

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

In addition to our own internally developed drug candidates, we proactively seek opportunities to 
license-in  the  compounds  in  oncology  and  other  therapeutic  areas  that  are  strategic  and  have  value 
creating potential to take advantage of our development know-how.  We are actively pursuing additional 
drug candidates to acquire for development.  Such additional drug candidates could significantly increase 
our capital requirements and place further strain on the time of our existing personnel, which may delay 
or otherwise adversely affect the development of our existing drug candidates.  Alternatively, we may be 
required to hire more employees, 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 will be 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. 

The  loss  of  the  technical  knowledge  and  management  and  industry  expertise  of  any  of our  key 
personnel, especially Dr. Chang H. Ahn, our Chairman and Chief Executive Officer and regulatory expert, 
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 
officers. 

27 

 
 
 
 
 
 
 
  
 
 
 
 
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.  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 entitles us to indemnification against losses, such indemnification may not 
be available or adequate should any claim arise. 

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  shareholder,  and  interest  on  bank  account  balances  and  short-term 
investments.    Our  accumulated  deficit  as  of  December 31,  2008  and  2007  was  $29,906,479  and 
$24,994,331,  respectively.    For  the  years  ended  December 31,  2008  and  2007,  we  had  net  losses  of 
$4,912,148  and  $4,304,005,  respectively,  primarily  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: 

• 

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

•  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; and 

•  developments in the biotechnology industry. 

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  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 have not paid, and do not expect to pay, any cash dividends because we 
anticipate that any earnings generated from future operations will be used to finance our operations and 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. 

28 

 
 
 
 
 
 
 
 
 
 
 
 
 
Some  or  all  of  the  "restricted"  shares  of  our  common  stock  issued  in  the  merger  of  CPRD  and 
Rexahn, Corp or held by other stockholders may be offered from time to time in the open market pursuant 
to Rule 144, and these sales may have a depressive effect on the market for our common stock.  In general, 
an affiliated person who has held restricted shares for a period of six months may, upon filing with the 
SEC a notification on Form 144, sell into the market common stock in an amount equal to 1 percent of the 
outstanding shares (approximately 600,000 shares) during a three-month period.  Non-affiliates may sell 
restricted securities after six months without any limits on volume. 

Our common stock may be delisted from NYSE Alternext.  

On February 24, 2009, we received a notice from NYSE Alternext providing notification that we 
are  not  in  compliance  with  Section  1003(a)(iii)  of  the  NYSE  Alternext  US  LLC  Company  Guide  (the 
“Guide”)  because  we  have  stockholders’  equity  of  less  than  $6,000,000  and  losses  from  continuing 
operations and net losses in our five most recent fiscal years.  We must submit a plan of compliance by 
March 24, 2009 addressing how we intend to regain compliance  with Section 1003(a)(iii) of the Guide 
within  a  maximum  of  eighteen  months  (the  “Plan  Period”).    The  Corporate  Compliance  Department 
management  of  NYSE  Alternext  will  evaluate  our  plan  and  determine  whether  we  have  reasonably 
demonstrated that we will be able to regain compliance with the continued listing standards.  If the plan is 
accepted, we will be subject to review during the Plan Period.  We intend to submit our plan by March 24, 
2009.  If we do not submit a plan or if our plan is not accepted, we will immediately become subject to 
delisting  proceedings.    Additionally,  if  the  plan  is  accepted  but  we  are  not  in  compliance  with  the 
continued  listing  standards  of  the  Guide  within  the  appropriate  time  periods,  or  if  we  do  not  make 
progress consistent with the plan during the Plan Period, we will become subject to delisting proceedings.   

We believe that the listing of our common stock on a recognized national trading market, such as 
NYSE Alternext, is an important part of our business and strategy. Such a listing helps our stockholders 
by providing a readily available trading market with current quotations. Without that, stockholders may 
have a difficult time getting a quote for the sale or purchase of our stock, the sale or purchase of our stock 
would  likely  be  made  more  difficult  and  the  trading  volume  and  liquidity  of  our  stock  would  likely 
decline.  The  absence  of  such  a  listing  may  adversely  affect  the  acceptance  of  our  common  stock  as 
currency or the value accorded it by other parties.  The delisting from NYSE Alternext would result in 
negative publicity and would negatively impact our ability to raise capital in the future. 

If NYSE Alternext delists our securities from trading on its exchange, we could face significant 

material adverse consequences including: 

• 

• 

• 

• 

a limited ability of market quotations for our securities; 

a  determination  that  our  common  stock  is  a  “penny  stock”  which  will  require  brokers 
trading in our common stock to adhere to more stringent rules and possibly resulting in a 
reduced level of trading activity in the secondary trading market for our common stock; 

a limited amount of news and analyst coverage for our company; and 

a  decreased  ability  to  issue  additional  securities  or  obtain  additional  financing  in  the 
future. 

Our  common  stock  is  currently  listed  on  the  NYSE  Alternext.    However,  because  our  common  stock 
may be a "penny stock," it may be more difficult for you to sell shares of our common stock, and the 
market price of our common stock may be adversely affected. 

29 

 
 
 
 
 
 
 
 
Our  common  stock  may  be  a  "penny  stock"  if,  among  other  things,  the  stock  price  is  below 
$5.00 per  share,  we  are  not  listed  on  a  national  securities  exchange  or  approved  for  quotation  on  the 
Nasdaq  Stock  Market,  or  we  have  not  met  certain  net  tangible  asset  or  average  revenue  requirements.  
Broker-dealers  who  sell  penny  stocks  must  provide  purchasers  of  these  stocks  with  a  standardized 
risk-disclosure document prepared by the SEC.  This document provides information about penny stocks 
and the nature and level of risks involved in investing in the penny-stock market.  A broker must also give 
a  purchaser,  orally  or  in  writing,  bid  and  offer  quotations  and  information  regarding  broker  and 
salesperson compensation, make a written determination that the penny stock is a suitable investment for 
the  purchaser,  and  obtain  the  purchaser's  written  agreement  to  the  purchase.    Broker-dealers  must  also 
provide customers that hold penny stock in their accounts with such broker-dealer a  monthly statement 
containing price and market information relating to the penny stock.  If a penny stock is sold in violation 
of the penny stock rules, purchasers may be able to cancel their purchase and get their money back.  If 
applicable,  the  penny  stock  rules  may  make  it  difficult  for  investors  to  sell  their  shares  of  our  stock.  
Because of the rules and restrictions applicable to a penny stock, there is less trading in penny stocks and 
the  market  price  of  our  common  stock  may  be  adversely  affected.    Also,  many  brokers  choose  not  to 
participate in penny stock transactions.  Accordingly, purchasers may not always be able to resell shares 
of our common stock publicly at times and prices that they feel are appropriate. 

Our business could be adversely impacted if we have deficiencies in our disclosure controls and 
procedures or internal control over financial reporting.  

Effective  internal  control  over  financial  reporting  and  disclosure  controls  and  procedures  are 
necessary  in  order  for  us  to  provide  reliable  financial  and  other  reports  and  effectively  prevent  fraud. 
These types of controls are designed to provide reasonable assurance regarding the reliability of financial 
reporting and the proper preparation of our financial statements, as well as regarding the timely reporting 
of  material  information.  If  we  cannot  maintain  effective  internal  control  or  disclosure  controls  and 
procedures, or provide reliable financial or SEC reports or prevent fraud, investors may lose confidence in 
our reported financial information, our common stock could be subject to delisting on the stock exchange 
where it is traded, our operating results and the trading price of our common stock could suffer, and we 
might become subject to litigation.  

While  our  management  will  continue  to  review  the  effectiveness  of  our  internal  control  over 
financial  reporting  and  disclosure  controls  and  procedures,  there  is  no  assurance  that  our  disclosure 
controls and procedures or our internal control over financial reporting will be effective in accomplishing 
all control objectives, including the prevention and detection of fraud, all of the time.  

Item 1B.  Unresolved Staff Comments. 

None. 

Item 2.  Description of Property. 

We lease approximately 8,030 square feet of laboratory and office space at 9620 Medical Center 
Drive,  Rockville,  Maryland,  20850.    The  facility  is  equipped  with  the  requisite  laboratory  services 
required to conduct our business and we believe that our existing facilities are adequate to meet our needs 
for the foreseeable future.  Our lease expires on June 30, 2009.  We are in the process of negotiating a 
new lease at a different location.  We do not own any real property. 

30 

 
 
  
 
  
 
 
 
 
 
 
Item 3.  Legal Proceedings. 

We are not subject to any material pending legal proceedings. 

Item 4.  Submission of Matters to a Vote of Security Holders. 

None. 

31 

 
 
 
 
 
PART II 

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

As of March 16, 2009, we are authorized to issue two classes of capital stock, which are common 
stock  and  preferred  stock.    Our  total  authorized  shares  of  common  stock  and  preferred  stock  are 
500,000,000 shares, par value $0.0001 per share, and 100,000,000 shares, par value $0.0001, respectively.  
As  of  March  16,  2009,  we  have  56,025,649  shares  of  common  stock  outstanding  and  approximately 
800 stockholders  of  record  of  common  stock.    As  of  March  16,  2009,  no  shares  of  preferred  stock  are 
outstanding. 

Our  common  stock  is  traded  on  the  NYSE  Alternext,  formerly  known  as  the  American  Stock 
Exchange, under the ticker symbol “RNN”.  From May 16, 2005 to May 23, 2008 our common stock was 
traded on the Over the Counter Bulletin Board (the "OTC-BB") under the ticker symbol "RXHN."  Prior 
to May 13, 2005, our common stock was traded on the OTC-BB under the ticker symbol "CPRD" since 
November 2004.   

The  following  table  sets  forth  the  high  and  low  sales  prices  of  our  common  shares  as  reported 

during the periods indicated.   

Period 
2007 

First Quarter 
Second Quarter 
Third Quarter 
Fourth Quarter 

2008 

First Quarter 
Second Quarter  
Third Quarter 
Fourth Quarter 

Dividends 

High

1.85
2.52
2.20
2.45

2.50
9.99
3.50
1.35

Low

1.10
1.25
1.01
1.05

1.35
1.85
0.51
0.66

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 2008. 

32 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Equity Compensation Plan Information 

The following table provides information, as of December 31, 2008, about shares of our common 
stock  that  may  be  issued  upon  the  exercise  of  options,  warrants  and  rights  granted  to  employees, 
consultants or directors under all of our existing equity compensation plans. 

Number of 
securities to 
be issued upon 
exercise of 
outstanding 
options, 
warrants  
and rights 

Weighted average 
exercise price of 
outstanding options, 
warrants and rights 

Number of 
securities 
remaining available 
for future issuance 
under equity 
compensation plans

Equity compensation plans 
approved by stockholders 
Equity compensation plans 
not approved by stockholders 
Total 

7,760,795 

- 
7,760,795 

$1.01 

- 
$1.01 

8,912,500 

- 
8,912,500 

Item 6.  Selected Financial Data. 

A smaller reporting company is not required to provide the information required by this Item. 

Item 7.  Management's Discussion and Analysis of Financial Condition and Results of Operation. 

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 on Form 10-K.  Some of the information contained in this discussion and analysis or set 
forth elsewhere in this Annual Report on Form 10-K, 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 

Our  company  resulted  from  the  merger  of  Corporate  Road  Show.Com  Inc.,  a  New  York 
corporation  incorporated  in  November 1999,  and  Rexahn,  Corp,  a  Maryland  corporation,  immediately 
after  giving  effect  to  our  reincorporation  as  a  Delaware  corporation  under  the  name  "Rexahn 
Pharmaceuticals,  Inc."    In  connection  with  that  transaction,  a  wholly  owned  subsidiary  of  ours  merged 
with  and  into  Rexahn,  Corp,  with  Rexahn,  Corp  remaining  as  the  surviving  corporation  and  a  wholly 
owned  subsidiary  of  ours.    In  exchange  for  their  shares  of  capital  stock  in  Rexahn,  Corp,  the  former 
stockholders of Rexahn, Corp received shares of common stock representing approximately 91.8% of the 
Company's outstanding equity after giving effect to the transaction.  Further, upon the effective time of 
the  Merger,  our  historic  business  was  abandoned  and  the  business  plan  of  Rexahn,  Corp  was  adopted.  
The transaction was therefore accounted for as a reverse acquisition with Rexahn, Corp as the accounting 

33 

 
 
 
 
 
 
 
 
 
 
 
 
acquiring party and CPRD as the acquired party.  In September 2005, Rexahn, Corp was merged with and 
into the Company. 

Our  efforts  and  resources  have  been  focused  primarily  on  acquiring  and  developing  our 
pharmaceutical  technologies,  raising  capital  and  recruiting  personnel.    We  are  a  development  stage 
company  and  have  no  product  sales  to  date  and  we  will  not  receive  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  financings, 
primarily  private  sales  of  common  stock  and  debt  securities,  and  collaboration  agreements  with  our 
strategic investors. 

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 United States generally accepted accounting principles, or 
GAAP,  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  and  our 
assessment relating to the impairment of intangible assets and deferred revenues. 

Use of Estimates 

The preparation of financial statements in conformity with GAAP 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  those  estimates.    These  estimates  are  reviewed  periodically  and  as  adjustments 
become necessary, they are reported in earnings in the period in which they become available. 

Stock-Based Compensation 

Effective  January  1,  2006,  the  Company’s  Plan  is  accounted  for  in  accordance  with  the 
recognition  and  measurement  provisions  of  Statement  of  Financial  Accounting  Standards  ("FAS")  No. 
123 (revised 2004), Share-Based Payment ("FAS 123(R)"), which replaces FAS No. 123, Accounting for 
Stock-Based  Compensation,  and  supersedes  Accounting  Principles  Board  Opinion  ("APB")  No.  25, 
Accounting  for  Stock  Issued  to  Employees,  and  related  interpretations.  FAS  123(R)  requires 
compensation costs related to share-based payment transactions, including employee stock options, to be 
recognized in the financial statements. In addition, the Company adheres to the guidance set forth within 
Securities  and  Exchange  Commission  ("SEC")  Staff  Accounting  Bulletin  No.  107  ("SAB  107"),  which 
provides the Staff's views regarding the interaction between FAS No. 123(R) and certain SEC rules and 
regulations and provides interpretations with respect to the valuation of share-based payments for public 
companies.  See Note 7 to the Financial Statements in Item 7 of this Annual Report for further details. 

Recently Issued Accounting Standards 

In  September  2006,  the  Financial  Accounting  Standards  Board  (“FASB”)  issued  FASB  Staff 
Position  (“FSP”)  Statement  of  Financial  Accounting  Standards  ("FAS")  No. 157,  “Fair  Value 
Measurements”  (“FAS  No.  157”),  which  defines  fair  value,  establishes  a  framework  for  measuring  fair 
value  and  expands  the  related  disclosure  requirements.  FAS  No.  157  applies  under  other  accounting 

34 

 
 
 
 
 
 
 
 
 
 
 
pronouncements that require or permit fair value measurements and does not require any new fair value 
measurements. FAS No. 157 indicates, among other things, that a fair value measurement assumes that 
the transaction to sell an asset or transfer a liability occurs in the principal market for the asset or liability 
or, in the absence of a principal market, the most advantageous market for the asset or liability. FAS No. 
157 defines fair value based upon an exit price model. In February 2008, the FASB issued FSP on FAS 
No. 157-1,  “Application  of  FASB  Statement  No. 157  to  FASB  Statement  No. 13  and  Its  Related 
Interpretive Accounting Pronouncements That Address Leasing Transactions,” and FSP FAS No. 157-2, 
“Effective Date of FASB Statement No. 157.” FSP FAS No. 157-1 removes leasing transactions from the 
scope of FAS No. 157, while FAS No. 157-2 defers the effective date of FAS No. 157 to the fiscal year 
beginning after November 15, 2008 for nonfinancial assets and nonfinancial liabilities that are recognized 
or disclosed at fair value in the financial statements on a nonrecurring basis. It does not defer recognition 
and  disclosure  requirements  for  financial  assets  and  financial  liabilities,  or  for  nonfinancial  assets  and 
nonfinancial  liabilities  that  are  remeasured  at  least  annually.  Effective  January 1,  2008,  the  Company 
adopted FAS No. 157, with the exception of the application of the statement to non-recurring nonfinancial 
assets and nonfinancial liabilities. The adoption of FAS No. 157 did not impact the Company’s financial 
position or results of operations. 

In December 2007, FASB issued FAS No. 141 (revised 2007), "Business Combinations" ("FAS 
No. 141(R)"). This statement replaces FAS No. 141, "Business Combinations" and requires an acquirer to 
recognize  the  assets  acquired,  the  liabilities  assumed,  including  those  arising  from  contractual 
contingencies,  any  contingent  consideration,  and  any  noncontrolling  interest  in  the  acquiree  at  the 
acquisition  date,  measured  at  their  fair  values  as  of  that  date,  with  limited  exceptions  specified  in  the 
statement.  FAS  No.  141(R)  also  requires  the  acquirer  in  a  business  combination  achieved  in  stages 
(sometimes referred to as a step acquisition) to recognize the identifiable assets and liabilities, as well as 
the  noncontrolling  interest  in  the  acquiree,  at  the  full  amounts  of  their  fair  values  (or  other  amounts 
determined in accordance with FAS No. 141(R)). In addition, FAS No. 141(R)'s requirement to measure 
the noncontrolling interest in the acquiree at fair value will result in recognizing the goodwill attributable 
to the noncontrolling interest in addition to that attributable to the acquirer. FAS No. 141(R) amends FAS 
No. 109, "Accounting for Income Taxes", to require the acquirer to recognize changes in the amount of its 
deferred  tax  benefits  that  are  recognizable  because  of  a  business  combination  either  in  income  from 
continuing operations in the period of the combination or directly in contributed capital, depending on the 
circumstances.  It  also  amends  FAS  No.  142,  "Goodwill  and  Other  Intangible  Assets",  to,  among  other 
things,  provide  guidance  on  the  impairment  testing  of  acquired  research  and  development  intangible 
assets and assets that the acquirer intends not to use. FAS No. 141(R) applies prospectively to business 
combinations  for  which  the  acquisition  date  is  on  or  after  the  beginning  of  the  first  annual  reporting 
period  beginning  on  or  after  December  15,  2008.  The  adoption  of  FAS  No.  141(R)  will  not  have  an 
impact on the Company's financial statements. 

In  December  2007,  FASB  issued  FAS  No.  160,  “Noncontrolling  Interests  in  Consolidated 
Financial Statements—amendment of Accounting Research Bulletin No. 51” (“FAS No. 160”). FAS No. 
160 establishes accounting and reporting standards for the noncontrolling interest in a subsidiary and for 
the  deconsolidation  of  a  subsidiary.  It  also  clarifies  that  a  noncontrolling  interest  in  a  subsidiary  is  an 
ownership  interest  in  the  consolidated  entity  that  should  be  reported  as  equity  in  the  consolidated 
financial statements. FAS No. 160 also changes the way the consolidated income statement is presented 
by requiring consolidated net income to be reported at amounts that include the amounts attributable to 
both the parent and the noncontrolling interest. It also requires disclosure, on the face of the consolidated 
statement  of  income,  of  the  amounts  of  consolidated  net  income  attributable  to  the  parent  and  to  the 
noncontrolling interest. FAS No. 160 requires that a parent recognize a gain or loss in net income when a 
subsidiary  is  deconsolidated  and  requires  expanded  disclosures  in  the  consolidated  financial  statements 
that  clearly  identify  and  distinguish  between  the  interests  of  the  parent  owners  and  the  interests  of  the 
noncontrolling  owners  of  a  subsidiary.  FAS  No.160  is  effective  for  fiscal  periods,  and  interim  periods 

35 

 
  
 
within those fiscal years, beginning on or after December 15, 2008.  The adoption of FAS No. 160 will 
not have an impact on the Company’s financial statements. 

In  March  2008,  FASB  issued  FAS  No.  161,  "Disclosures  about  Derivative  Instruments  and 
Hedging Activities - an amendment of FASB Statement No. 133" ("FAS 161"). FAS No. 161 changes the 
disclosure requirements for derivative instruments and hedging activities. Entities are required to provide 
enhanced  disclosures  about  (a)  how  and  why  an  entity  uses  derivative  instruments,  (b)  how  derivative 
instruments and related hedged items are accounted for under Statement 133 and its related interpretations, 
and (c) how derivative instruments and related hedged items affect an entity's financial position, financial 
performance, and cash flows. FAS No. 161 is effective for fiscal years and interim periods beginning after 
November 15, 2008. The Company is currently assessing the potential impact that the adoption of FAS 
161 could have on its financial statements. 

Results of Operations 

Total Revenues 

During 2003 we entered into a collaborative research agreement with Rexgene Biotech Co., Ltd.  
("Rexgene"), a minority shareholder.  Rexgene is engaged in the development of pharmaceutical products 
in  Asia  and  has  agreed  to  assist  us  with  the  research,  development  and  clinical  trials  necessary  for 
registration of our Archexin™ drug candidate in Asia.  This agreement provides Rexgene with exclusive 
rights  to  license,  sublicense,  make,  have  made,  use,  sell  and  import  Archexin™  in  Asia.    A  one-time 
contribution to the joint development and research of Archexin™ of $1,500,000 was paid to us in 2003 in 
accordance  with  the  agreement.    The  amount  of  revenue  from  this  contribution  is  being  recognized  as 
income over the term of this agreement which terminates at the later of 20 years or the term of the patent 
on the licensed product.  We use 20 years as the basis for revenue recognition and accordingly $75,000 
was  included  in  revenues  in  each  fiscal  year  beginning  with  2003  and  the  remaining  $1,050,000  is 
reflected as deferred revenue on the balance sheet as of December 31, 2008.  We adopted SAB No. 104, 
"Revenue Recognition - Nonrefundable Upfront Fees" with respect to the accounting for this transaction.  
These fees are to be used in the cooperative funding of the costs of development of Archexin™. 

Comparison of the Year Ended December 31, 2008 and the Year Ended December 31, 2007 

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 and general legal activities. 

General  and  administrative  expenses  decreased  $202,447,  or  7.4%,  from  $2,728,152  in  fiscal 
2007 to $2,525,705 in fiscal 2008.  The decrease was due primarily to a reduction of $389,000 in stock 
compensation  expense  due  to  lower  fair  values  calculated  using  option pricing  model  as  a  result  of  the 
decline in our share price for the current year as compared to 2007.  In 2008, we issued 2,005,000 options 
compared to 525,000 in 2007.  The decrease in our stock value more than offset the increase of 1,480,000 
options issued in 2008.  The decrease in general and administrative expenses is partly offset by increase 
in  payroll  expenses  of  $105,000  as  more  employees  were  hired  and  payment  of  $87,000  for  the  initial 
listing fee on the NYSE Alternext US LLC, formerly the American Stock Exchange. 

36 

 
 
 
 
 
 
 
 
 
 
 
 
Research and Development Expenses 

Research and development expenses consist primarily of salaries and related personnel costs, fees 
paid to consultants and outside service providers for laboratory development and other expenses relating 
to the design, development, testing, and enhancement of our drug candidates.  We expense our research 
and development costs as they are incurred. 

Research  and  development  expenses  increased  $902,213  or  59.1%,  from  $1,527,294  in  fiscal 
2007  to  $2,429,507  in  fiscal  2008.    The  increase  was  due  primarily  to  expenses  incurred  in  relation  to 
Phase  II  clinical  trials  for  Serdaxin  and  Zoraxel  drug  candidates.    We  expect  that  research  and 
development  expenses will increase  as  our other drug candidates move into the clinical trials phases of 
development. 

Patent Fees 

Our patent fees increased $29,747, or 15.9%, from $186,613 in fiscal 2007 to $216,360 in fiscal 
2008.  This was primarily due to increased activity and legal costs incurred to respond to existing patent 
applications in 2008 as compared to 2007. 

Depreciation and Amortization 

Depreciation  expense  decreased  $9,327,  or  14.3%,  from  $65,070  in  fiscal  2007  to  $55,743  in 
fiscal  2008.    The  decrease  was  due  primarily  to  lab  equipment  being  depreciated  based  on  a  declining 
balance. 

Interest Expense 

Our interest expense was $0 for fiscal 2007 and 2008.  

Interest Income 

In fiscal 2008, we recorded $260,533 of interest income from the investment of our cash and cash 
equivalents  and  other  short-term  investments,  compared  to  $128,124  recorded  in  fiscal  2007.    The 
increase  of  $132,409,  or  103.3%,  was  primarily  due  to  higher  average  cash  and  equivalents  balance  in 
2008 as a result of private placements occurring in late 2007. 

Research and Development Projects 

Research  and  development  expenses  are  expensed  as  incurred.    Research  and  development 
expenses  consist  primarily  of  salaries  and  related  personnel  costs,  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 license rights to technology in the research and development stage 
and  that  have  no  alternative  future  uses  are  expensed  as  incurred.    Our  research  and  development 
programs  are  related  to  our  three  clinical  stage  lead  drug  candidates,  Archexin™,  Serdaxin™  and 
Zoraxel™  and  pre-clinical  stage  nano  drug  candidates,  RX-0201-Nano,  RX-0047-Nano  and  Nano-
polymer  Anticancer  Drugs.  Each  of  our  lead  drug  candidates  is  in  various  stages  of  completion  as 
described  below.    As  we  expand  our  clinical  studies,  we  will  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 

37 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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, Archexin™, Serdaxin™ and Zoraxel™, is uncertain, and because RX-0201-Nano, RX-
0047-Nano  and  Nano-polymer  Anticancer  Drugs  are  in  early-stage  development,  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 these projects are not completed as planned, our results of operations and financial 
condition could be negatively affected and if we are unable to obtain additional financing to fund these 
projects, we may not be able to continue as a going concern. 

Archexin™ 

In  October  2006,  we  announced  the  conclusion  of  the  Phase  I  clinical  trial  of  Archexin™,  our 

leading drug candidate.  The costs incurred for the clinical trial was approximately $1,500,000. 

The Phase I clinical trial of Archexin™, which took place at Georgetown University's Lombardi 
Cancer Center beginning in September 2004 and at the University of Alabama at Birmingham beginning 
in  August 2005,  was  primarily  to  determine  the  safety  and  tolerability  of  the  drug  in  patients  with 
advanced cancer.  As the main purpose of the clinical trial was to establish the safety of Archexin ™, the 
parameters that determined the completion of this project were a direct function of the safety profile of 
this compound in humans.  As this was the first time that Archexin™ had been administered to humans, 
the safety profile in humans was unknown and, therefore, the number of doses required to determine the 
dosage at which the FDA safety endpoints would be met was estimated. 

The  Phase  II  clinical  trial  of  Archexin™  began  in  the  third  quarter  of  2007  in  patients  with 
advanced renal cell carcinoma who have failed previous treatments.  The trial is the first of multiple trials 
planned for Archexin™.  We estimate that the Phase II trials will be completed in 2010 and will require 
approximately  $5,000,000.    In  January 2005,  we  received  "orphan  drug  designation"  from  the  FDA  for 
Archexin™  for  five  cancer  indications,  including  renal  cell  carcinoma,  ovarian  cancer,  glioblastoma, 
stomach  cancer,  and  pancreatic  cancer.    The  orphan  drug  program  is  intended  to  provide  patients  with 
faster  access  to  drug  therapies  for  diseases  and  conditions  that  affect  fewer  than  200,000  people.  
Companies  that  receive  orphan  drug  designation  are  provided  an  accelerated  review  process,  tax 
advantages, and seven years of market exclusivity in the United States.  In the future, we plan to apply 
Archexin™ to the treatment of other orphan indications and other cancers. 

Serdaxin™  

SerdaxinTM is being developed to treat depression and mood disorders, and has proven and well-
established safety in humans.  Through December 31, 2008, the costs incurred for development of these 
compounds to date have been approximately $800,000.  Serdaxin™ enters Phase II trials in the first half 
of 2009. We currently estimate that these studies will require $1,750,000 through the end of 2011. 

Zoraxel™ 

ZoraxelTM  is  a  CNS-based  sexual  dysfunction  drug  that  has  extensive  and  excellent  safety  in 
humans.  Through  December 31,  2008,  the  costs  incurred  for  development  of  these  compounds  to  date 
have  been  approximately  $1,000,000.    Zoraxel™  entered  Phase  II  trials  in  the  first  half  of  2008.  We 
currently estimate that these studies will require approximately $1,250,000 through the end of 2011.   

38 

 
 
 
 
 
 
 
 
 
 
Pre-clinical Pipeline 

RX-0201-Nano, RX-0047-Nano and Nano-polymer Anticancer Drugs are in a pre-clinical stage 
of  development  and  the  next  scheduled  program  for  each  compound  is  a  pre-clinical  toxicology  study 
required prior to submission of an Investigational New Drug ("IND") application to the FDA.  Through 
December 31,  2008,  the  costs  incurred  for  development  of  these  compounds  to  date  have  been 
approximately  $1,250,000.    The  estimated  cost  to  complete  pre-clinical  toxicology  and  Phase  I  clinical 
trials is estimated to be approximately $1,500,000 per each compound for a total of $4,500,000.  These 
compounds may be entered into these Phase I clinical trials in 2010.  

The conduct of the clinical trial and toxicology studies described above are being accomplished in 
conjunction with third-party clinical research organizations, or CROs, at external locations.  This business 
practice  is  typical  for  the  pharmaceutical  industry  and  companies  like  us.    As  a  result,  the  risk  of 
completion or delay of these studies is not within our direct control and a program delay may occur due to 
circumstances outside our control.  A delay in any of these programs may not necessarily have a direct 
impact  on  our  daily  operations.    However,  to  the  extent  that  a  delay  results  in  additional  cost  to  us,  a 
higher than expected expense may result. 

We will need to raise additional money through debt and/or equity offerings in order to continue 
to develop our drug candidates.  If we are not able to raise sufficient additional money, we will have to 
reduce our research and development activities.  We will first reduce research and development activities 
associated with our preclinical compounds.  To the extent necessary, we will then reduce our research and 
development activities related to some or all of our clinical drugs. 

Liquidity and Capital Resources  

Comparison of 2008 and 2007 

Cash used in operating activities was $4,323,853 in fiscal 2008 compared to $3,394,839 in fiscal 
2007.  Fiscal 2008 operating cash flows reflect our loss from continuing operations of $4,912,148, offset 
by  net  non-cash  charges  of  $485,793  and  a  net  increase  in  cash  components  of  working  capital  of 
$102,502.    Non-cash  charges  consist  of  depreciation  and  amortization  of  $55,743,  stock  option 
compensation expense of $484,684, amortization of deferred revenue of $75,000 and realized losses on 
securities  available  for  sale  of  $20,366.    The  increase  in  working  capital  primarily  consists  of  prepaid 
expenses  and  other  of  $350,440  offset  by  reduction  in  accounts  payable  and  accrued  expenses  of 
$247,937.    Fiscal  2007  operating  cash  flows  reflect  our  loss  from  continuing  operations  of  $4,304,005, 
offset by net non-cash charges of $1,111,716 and a net decrease in cash components of working capital of 
$202,550.    Non-cash  charges  consist  of  depreciation  and  amortization  of  $65,070,  stock  option 
compensation expense of $1,121,646 and amortization of deferred revenue of $75,000.  The decrease in 
working capital primarily consists of a $31,469 increase in accounts payable and accrued expenses and an 
increase of $234,019 to prepaid and other assets.   

Cash of $47,789 was used in investing activities in fiscal 2008, which consisted of $27,193 for 
the purchase of equipment, $5,848,176 for the purchase of available-for-sale securities and $5,827,580 for 
proceeds  from  sales  of  available-for-sale  securities.    Cash  used  in  investing  activities  of  $3,550,000  in 
fiscal 2007 consisted of the purchase of $3,550,000 of available-for-sale securities. 

Cash  provided  by  financing  activities  of  $931,201  in  fiscal  2008  consists  of  proceeds  from  the 
issuance of common stock for cash.  Cash provided by financing activities of $6,720,350 in fiscal 2007 
consists of proceeds from the issuance of common stock for cash. 

39 

 
 
 
 
 
 
 
 
 
 
For the years ended December 31, 2008 and 2007, we experienced net losses of $4,912,148 and 
$4,304,005, respectively.  Our accumulated deficit as of December 31, 2008 and 2007 was $29,906,479 
and $24,994,331, respectively. 

Financings 

We  have  financed  our  operations  since  inception primarily  through  equity  and  convertible  debt 
financings and interest income from investments of cash and cash equivalents.  During fiscal year 2008, 
we had a net decrease in cash and cash equivalents of $3,440,441.  This decrease resulted primarily from 
cash used in operating activities of $4,323,853 offset by cash provided by financing activities of $931,201.  
During  fiscal  2007,  we  had  a  net  decrease  in  cash  and  cash  equivalents  of  $224,489.    This  decrease 
primarily  resulted  from  the  cash  provided  by  financing  activities  of  $6,720,350,  offset  by  cash  used  in 
operating activities of $3,394,839 and cash used in financing activities of $3,550,000  

On December, 24, 2007 we received approximately $6,800,000  in net proceeds upon closing of 
the  sales  of  our  securities.  Such  sales  consisted  of  the  following:  (1)  sale  to  KT&G  Corporation  of 
2,142,858 shares of our common stock and a warrant to purchase 428,572 shares of our common stock for 
total consideration of $3,000,000; (2) sale to Rexgene Biotech Co., Ltd. of 714,286 shares of our common 
stock  and  a  warrant  to  purchase  142,857  shares  of  our  common  stock  for  total  consideration  of 
$1,000,000; (3) sale to Jungwoo Family Co., Ltd. of 142,857 shares of our common stock and a warrant 
to  acquire  up  to  28,571  shares  of  our  common  stock  for  aggregate  cash  consideration  of  $200,000;  (4) 
sale to Kumho Investment Bank of 357,143 shares of our common stock and a warrant to acquire up to 
71,429  shares  of  our  common  stock  for  aggregate  cash  consideration  of  $500,000;  and  (5)  sale  to  26 
individual Korean investors of a total of 1,500,015 shares of our common stock and a warrant to acquire 
up to 300,003 shares of our common stock for aggregate cash consideration of $2,100,000.   

On  March  20,  2008,  we  received  approximately  $900,000  in  net  proceeds  upon  closing  of  the 
sales  of  our  securities.  Such  sales  consisted  of  the  following:  (1)  sale  to  Jungwoo  Family  Co.,  Ltd.  of 
285,715 shares of our common stock and a warrant to acquire up to 57,143 shares of our common stock 
for  aggregate  cash  consideration  of  $400,000;  (2)  sale  to  Super  Bio  Co.  Ltd.  of  357,143  shares  of  our 
common  stock  and  a  warrant  to  acquire  up  to  71,429  shares  of  our  common  stock  for  aggregate  cash 
consideration of $500,000. 

For  the  foreseeable  future,  we  will  have  to  fund  all  of  our  operations  and  capital  expenditures 
from the net proceeds of equity and debt offerings we may make, cash on hand, licensing fees and grants.  
Although we have plans to pursue additional financing, there can be no assurance that we will be able to 
secure financing when needed or obtain such financing on terms satisfactory to us, if at all, or that any 
additional funding we do obtain will be sufficient to meet our needs in the long term.  If we are not able to 
raise  sufficient  additional money,  we  will  have  to  reduce  our  research  and  development  activities.    We 
will first reduce research and development activities associated with our preclinical compounds.  To the 
extent necessary, we will then reduce our research and development activities related to some or all of our 
clinical drugs. 

Contractual Obligations 

In  April 2004,  we  entered  into  a  clinical  development  agreement  with  Georgetown  University 
with  an  effective  period  from  April 5,  2004  through  April 5,  2006.    The  total  estimated  cost  of  the 
program is $223,126, based on the fees, enrollment and completion of 20 patients.  The clinical trial has 
been completed and $121,359 was paid in 2008. 

40 

 
 
 
 
 
 
 
 
 
In  April 2004,  we  signed  a  5-year  lease  for  8,030  square  feet  of  office  space  in  Rockville, 
Maryland  from  July 2004  to  June  2009.    The  lease  requires  annual  base  rents  of  $200,750  subject  to 
annual increases of 3% of the preceding years adjusted base rent.  Under the leasing agreement, we also 
pay  our  allocable  portion  of  real  estate  taxes  and  common  area  operating  charges.  We  are  currently  in 
negotiations with a new party to enter into a lease for new office space.   

Minimum future rental payments under this lease are as follows: 

For the years ended December 31 

2009 

$112,972 

On  January 6,  2006,  we  contracted  with  Amarex,  LLC  to  conduct  Phase  II  clinical  studies  for 
Archexin™.  In accordance with the agreement, the estimated contract duration is 24 months for a total 
cost of $596,244 plus pass through expenses.  The service costs are payable in 24 monthly payments of 
$18,633 plus an up front payment of $149,061 due upon signing.  We paid $614,876 towards the cost of 
the study as of December 31, 2008.  We are in the process of negotiating with Amarex, LLC to determine 
the actual cost of service.  In 2007, we added additional services to the Phase II clinical studies.   The cost 
of these services totals $106,220, all of which was paid as of December 31, 2008.  

On  October  2,  2003,  we  contracted  with  Amarex  to  conduct  Phase  I  clinical  studies  for 
Archexin™  (then  RX-0201).    Of  the  $239,337  to  be  paid  under  this  contract,  $194,461  was  paid  as  of 
December 31, 2008.  The balance will be paid when the final report is accepted, which is expected to be 
in  2009.    Since  2003,  additional  services  were  added  to  the  study.    These  services  were  contracted  for 
$200,043, all of which was paid as of December 31, 2008.   

From  April 3,  2006  through  2008,  we  have  contracted  with  UPM  Pharmaceuticals,  Inc.  to 
develop several release formulations for Serdaxin™ and Zoraxel™.  In accordance with the agreements, 
the estimated total cost is $945,080, of which $785,315 was paid as of December 31, 2008.  The service 
costs were payable based upon a payment schedule related to certain milestones.   

On  April  15,  2007  we  entered  into  research  agreement  with  University  of  Maryland 
Biotechnology Institute to identify new JNK inhibitors using their NMR technology.  The total amount to 
be  paid  under  this  contract  is  $17,000,  of  which  $10,000  was  paid  in  2007.    The  balance  will  be  paid 
when the final report is submitted. 

On  May  18,  2007,  we  contracted  with  LabConnect  to  provide  sample  management  and  central 
laboratory services for Phase II clinical studies for Archexin™ clinical trials.  The total contract amount is 
estimated to be $197,220, of which $54,444 was paid in 2007 and $7,180 was paid in 2008.  The balance 
will be paid as services are performed over the next 20 months.   

On June 13, 2007, we contracted with Formatech to test the stability of the Archexin™ package.  
The  total  amount  to  be  paid  for  this  contract  was  $17,000,  of  which  $10,000  was  paid  in  2007.The 
balance will be paid when the final report is submitted, which is expected to be in two years.   

On  May  6,  2008,  we  contracted  with  Delaware  Valley  Urology,  LLC  as  a  clinical  site  for  our 
Phase  IIa  erectile  dysfunction  study  for  Zoraxel™.    In  accordance  with  the  agreement,  the  estimated 

41 

 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
contract  duration  is 17  months  for  an  estimated  cost  of  $57,365, with  lab  costs  included.  $43,147  was 
paid in 2008. 

On  April  14,  2008,  we  contracted  with  Myron  I  Murdock  M.D.  LLC  as  a  clinical  site  for  our 
Phase  IIa  erectile  dysfunction  study  for  a  duration 12  months  for  Zoraxel™.    The  estimated  amount  of 
this contract, without lab costs, is $104,559, of which $37,750 was paid in 2008. 

On  April  15,  2008,  we  entered  into  a  24  month  contract  with  Radiant  Development  CRO  to 
manage  clinical  trials  for  our  Phase  IIa  erectile  dysfunction  study  for  Zoraxel™.    The  total  contract 
amount is estimated to be $109,655, of which $55,217 was paid in 2008.    

On December 23, 2008, we entered into a 12 month contract with Radiant Development CRO to 
manage clinical trials for our Phase IIa major depressive disorder study for Serdaxin™.  The total contract 
amount is estimated to be $169,343, of which $16,934 was paid in 2008. 

On  September  5,  2008,  we  contracted  with  Radiant  Research  -  Greer  as  a  clinical  site  for  our 
Phase IIa clinical study for Zoraxel™ for erectile dysfunction.  The estimated cost for the 12 month study 
is $62,532, of which $44,969 was paid in 2008. 

On  January  17,  2008,  we  entered  into  a  Research  Services  Agreement  with  the  University  of 
Maryland, Baltimore to conduct in vivo studies of the PC-3 tumor model with Archexin™ and RX-0047.  
The total cost of the contract is $27,288, of which $20,466 was paid in 2008. 

On  December  1,  2008,  we  entered  into  Research  Services  Agreement  with  the  University  of 
Tromso,  Norway  to  conduct  statistical  analysis  regarding  sexual  incentive  motivation  for  our  erectile 
dysfunction study.  The total cost for these services is $19,000, of which $9,500 was paid in 2008.   

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.  Based on our current plans and our capital resources, we believe that our cash and 
cash equivalents will be sufficient to enable us to meet our minimum planned operating needs through the 
end  of  2009,  which  would  entail  focusing  our  resources  on  Phase  II  clinical  trials  of  Archexin™, 
Serdaxin™ and Zoraxel™.  Through the end of 2009, we expect to spend a minimum of approximately 
$1.2 million on clinical development for Phase II clinical trials of Archexin™, Serdaxin™ and Zoraxel™ 
(including our commitments described under "Contractual Commitments" of this Item 6), $2.3 million on 
general  corporate  expenses,  and  approximately  $113,000  on  facilities  rent.    We  will  need  to  seek 
additional financing to implement and fund other drug candidate development, clinical trial and research 
and development efforts to the maximum extent of our operating plan, including in-vivo animal and pre-
clinical  studies,  Phase  II  clinical  trials  for  new  product  candidates,  as  well  as  other  research  and 
development projects, which together with the minimum operating plan through the end of 2009, could 
aggregate  up  to  $3.6  million.  If  we  are  not  able  to  secure  additional  financing,  we  will  not  be  able  to 
implement and fund the research and development.   

However, 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: 

• 

the progress of our product development activities; 

42 

 
 
 
 
 
 
 
 
 
 
 
 
• 

• 

• 

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. 

Impact of Inflation 

To date inflationary factors have not had a significant effect on our operations. 

Off-Balance Sheet Arrangements 

We do not have any off-balance sheet arrangements. 

43 

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

A smaller reporting company is not required to provide the information required by this Item. 

Item 8.  Financial Statements and Supplementary Data. 

Our  financial  statements  and  financial  statement  schedule  and  the  Report  of  Independent 
Registered  Public  Accounting  Firm  thereon  are  filed  pursuant  to  this  Item 8  and  are  included  in  this 
Annual Report on Form 10-K beginning on page F-1. 

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  Securities  Exchange  Act  of  1934  (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  Securities  Exchange  Act  of  1934  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, 2008, 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. 

44 

 
 
 
 
 
 
 
 
 
 
 
 
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 
generally accepted accounting principles and includes those policies and procedures that:   

• 

• 

• 

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

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  authorization  of  management  and  the  board  of 
directors of the Company; and 

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 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 the Company’s internal control over financial reporting as of December 31, 
2008. In making this assessment, the Company’s management used the criteria set forth by the Committee 
of  Sponsoring  Organizations  of  the  Treadway  Commission  (“COSO”)  in  Internal  Control-Integrated 
Framework.   

Based  on  this  evaluation,  our  management,  with  the  participation  of  the  Chief  Executive  Officer 
and Chief Financial Officer, concluded that, as of December 31, 2008, our internal control over financial 
reporting was effective. 

Our independent registered public accounting firm, Parente Randolph, LLC, has issued an audit 
report  on  the  effectiveness  of  our  internal  control  over  financial  reporting  as  of  December  31,  2008  as 
stated in their report, which is included in this Annual Report on Form 10-K. 

Chang H. Ahn   
Chairman and Chief Executive Officer 

March 16, 2009

Tae Heum Jeong 
Chief Financial Officer, Secretary and  
Director 

45 

 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 9B.  Other Information. 

None. 

46 

 
 
 
Report of Independent Registered Public Accounting Firm 
on Internal Control Over Financial Reporting 

Board of Directors and Stockholders 
Rexahn Pharmaceuticals, Inc. 
Rockville, Maryland: 

We have audited Rexahn Pharmaceuticals, Inc. (the “Company”) internal control over financial reporting 
as of December 31, 2008, based on criteria established in Internal Control - Integrated Framework issued 
by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission  (COSO).    Rexahn 
Pharmaceuticals, Inc.’s management is reasonable 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 and opinion on the Company’s internal control over financial reporting based 
on our audit. 

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight 
Board (United States).  Those standards require that we plan and perform the audit to obtain reasonable 
assurance about whether effective internal control over financial reporting was maintained in all material 
respects.    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 audit 
also  included  performing  such  other  procedures  as  we  considered  necessary  in  the  circumstances.    We 
believe that our audit provides a reasonable basis for our opinion. 

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)  proved  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. 

47 

 
  
 
 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm 
on Internal Control Over Financial Reporting 
(Continued) 

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. 

In  our  opinion,  Rexahn  Pharmaceuticals,  Inc.  maintained,  in  all  material  respects,  effective  internal 
control over financial reporting as of December 31, 2008, based on criteria established in Internal Control 
-  Integrated  Framework  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway 
Commission (COSO). 

We  also  have  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight 
Board (United States), the balance sheet of Rexahn Pharmaceuticals, Inc. as of December 31, 2008, and 
the related statements of operations, shareholders’ equity and comprehensive loss, and cash flows for the 
year then ended, and the cumulative from inception column in the statements of operations and cash flows 
for the year then ended, and our report dated March 10, 2009 expressed an unqualified opinion. 

/s/ Parente Randolph, LLC 

Morristown, New Jersey 
March 10, 2009 

48 

 
  
 
 
 
 
 
 
 
 
 
PART III 

Item 10.  Directors, Executive Officers and Corporate Governance. 

The information to be provided under the caption “Election of Directors,” to be contained in the 
Definitive  Proxy  Statement  and  required  to  be  disclosed  in  this  Item  10,  is  hereby  incorporated  by 
reference in this Item 10; and the information to be provided under the caption “Section 16(a) Beneficial 
Ownership Reporting Compliance,” to be contained in the Definitive Proxy Statement and required to be 
disclosed pursuant to Section 16(a) of the Exchange Act, is also hereby incorporated by reference in this 
Item 9.   

Code of Ethics 

We  have  adopted  a  code  of  ethics  that  applies  to  our  principal  executive  officer,  principal 
financial  officer,  principal  accounting  officer  or  controller,  or  persons  performing  similar  functions.  
Rexahn’s Code of Ethics is posted on its website, which is located at www.rexahn.com.   

We  intend  to  satisfy  any  disclosure  requirement  regarding  an  amendment  to,  or  waiver  from,  a 

provision of this code of ethics by posting such information on our website, at the address specified above.   

Item 11.  Executive Compensation. 

The information to be provided under the caption “Executive Compensation and Other Matters”, 
to be contained in the Definitive Proxy Statement and required to be disclosed in this Item 11, is hereby 
incorporated by reference in this Item 11. 

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

The information to be provided under the captions “Equity Compensation Plan Information” and 
“Security  Ownership  of  Management  and  Certain  Security  Holders”,  each  to  be  contained  in  the 
Definitive  Proxy  Statement  and  required  to  be  disclosed  in  this  Item 12,  is  hereby  incorporated  by 
reference in this Item 12. 

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

49 

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
Related Transactions 

The  information  to  be  provided  under  the  caption  “Certain  Relationships  and  Related 
Transactions,” to be contained in the Definitive Proxy Statement and required to be disclosed in this Item 
12, is hereby incorporated by reference in this Item 13.   

Item 14.  Principal Accounting Fees and Services. 

The following table presents fees for professional audit services rendered by our independent registered 
public  accounting  firm  for  the  audits  of  the  Company's  annual  financial  statements  for  the  years  ended 
December 31, 2008 and 2007, respectively.1 

Audit Fees 
Audit-Related Fees 
Tax Fees 
All Other Fees 

2008 
$125,5002 
- 
- 
- 

2007 
$83,000 
- 
- 
- 

1. For the year ended December 31, 2007, the fees were paid to Lazar Levine & Felix LLP. For the year ended December 31, 2008, the fees for the quarterly reviews 

were paid to Lazar Levine & Felix LLP and the remaining fees will be paid to Parente Randolph, LLC which acquired the assets of Lazar Levine & Felix LLP in 2009.   

2. Audit Fees relate to the audit of the Company's financial statements, reviews of certain financial statements included in the Company's quarterly reports on Form 

10-Q and the audit of internal controls over financial reporting.  The amount shown represents the maximum fees for such services.   

Our  Audit  Committee  reviews  all  audit  fees  at  least  annually  and  approves  in  advance  the  fee 
arrangements.  

50 

 
  
 
 
 
 
 
 
 
 
 
 
 
Item 15.  Exhibits, Financial Statement Schedules. 

(a)  The following documents are filed as a part of this Annual Report on Form 10-K:  
(b)   

(1)  Financial Statements: 

  Report of Parente Randolph, LLC 

 Report of Lazar Levine & Felix LLP 

  Balance Sheets at December 31, 2008 and December 31, 2007 

  Statement of Operations for the years ended December 31, 2008 and December 31, 2007 
and cumulative from March 19, 2001 (Inception) to December 31, 2008 

  Statement of Stockholders’ Equity and Comprehensive Loss from March 19, 2001 
(Inception) to December 31, 2008 

  Statement of Cash Flows for the years ended December 31, 2008 and December 31, 2007 
and cumulative from March 19, 2001 (Inception) to December 31, 2008 

  Notes to Financial Statements 

(2)   

Page

F-1

F-2

F-3

F-4

F-5

F-7

F-8

  All schedules for which provision is made in the applicable accounting regulations of the SEC are 
omitted because the required information is either presented in the financial statements or notes 
thereto, or is not applicable, required or material. 

(3)  Exhibits: 

The documents listed below are filed with this Annual Report on Form 10-K as exhibits or 
incorporated into this Annual Report on Form 10-K by reference as noted: 

Exhibit 
Number 
3.1. 

3.2. 

4.1. 

*10.1.1. 

*10.1.2. 

Exhibit Description 

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. 
Amended and Restated Bylaws, filed as Appendix H to the Company's Definitive Proxy 
Statement on Schedule 14A (File No. 000-50590) dated April 29, 2005, 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. 
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, 

51 

 
 
  
  
 
  
  
  
 
 
  
 
 
  
 
  
  
  
  
 
  
  
  
 
  
 
  
 
  
  
 
  
 
  
  
  
 
  
 
  
  
  
  
 
  
  
  
 
  
  
  
 
  
  
     
   
  
 
 
 
*10.1.3. 

*10.2. 

*10.3. 

10.4. 

10.5. 

10.6 

10.7 

10.8 

10.9 

10.10 

10.11 

10.12 

10.13 

10.14 

2005, is incorporated herein by reference. 
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. 
Employment Agreement, dated September 12, 2005, by and between Rexahn 
Pharmaceuticals, Inc. and C. H. Ahn, filed as Exhibit 10.1 to the Company's Current Report 
on Form 8-K filed on September 12, 2005, is incorporated herein by reference. 
Employment Agreement, effective September 12, 2007, by and between Rexahn 
Pharmaceuticals, Inc. and T. H. Jeong, filed as Exhibit 10 to the Company's Current Report on 
Form 8-K filed on October 9, 2007 is incorporated herein by reference. 
Research Collaboration Agreement dated February 6, 2003 by and between Rexahn 
Pharmaceuticals, Inc. and Rexgene Biotech Co., Ltd., filed as Exhibit 10.5 to the Company’s 
Annual Report on Form 10-KSB for the fiscal year ended December 31, 2005, is incorporated 
herein by reference. 
Revaax License Agreement, dated February 8, 2005, by and between Rexahn 
Pharmaceuticals, Inc. and Revaax Pharmaceuticals LLC, filed as Exhibit 10.6 to the 
Company’s Annual Report on Form 10-KSB for the fiscal year ended December 31, 2005, is 
incorporated herein by reference.  
Lease Agreement, dated April 26, 2004, by and between Red Gate III LLC and Rexahn 
Corporation, filed as Exhibit 10.6 to the Company’s Annual Report on Form 10-KSB for the 
fiscal year ended December 31, 2007, is incorporated herein by reference. 
Securities Purchase Agreement, dated as of November 19, 2007, by and between Rexahn 
Pharmaceuticals, Inc. and KT&G Corporation, filed as Exhibit 10.1 to the Company’s Current 
Report on Form 8-K filed on November 21, 2007, is incorporated herein by reference. 
Securities Purchase Agreement, dated as of November 20, 2007, by and between Rexahn 
Pharmaceuticals, Inc. and Rexgene Biotech Co., Ltd, filed as Exhibit 10.4 to the Company’s 
Current Report on Form 8-K filed on November 21, 2007, is incorporated herein by reference.
Securities Purchase Agreement, dated as of December 17, 2007, by and between Rexahn 
Pharmaceuticals, Inc. and Jungwoo Family Co., Ltd, filed as Exhibit 10.1 to the Company’s 
Current Report on Form 8-K filed on December 18, 2007, is incorporated herein by reference.
Securities Purchase Agreement, dated as of December 17, 2007, by and between Rexahn 
Pharmaceuticals, Inc. and Kumho Investment Bank, filed as Exhibit 10.2 to the Company’s 
Current Report on Form 8-K filed on December 18, 2007, is incorporated herein by reference.
Securities Purchase Agreement, dated as of December 17, 2007, by and between Rexahn 
Pharmaceuticals, Inc. and the several parties thereto, filed as Exhibit 10.3 to the Company’s 
Current Report on Form 8-K filed on December 18, 2007, is incorporated herein by reference.
Warrant, dated December 24, 2007, issued to KT&G Corporation, filed as Exhibit 10.6 to the 
Company’s Current Report on Form 8-K filed on December 26, 2007, is incorporated herein 
by reference. 
Warrant, dated December 24, 2007, issued to Rexgene Biotech Co., Ltd., filed as Exhibit 10.7 
to the Company’s Current Report on Form 8-K filed on December 26,2007, is incorporated 
herein by reference. 
Form of Warrant, dated December 24, 2007, issued to the purchasers pursuant to the Jungwoo 
Securities Purchase Agreement, the Kumho Securities Purchase Agreement, the Individual 
Investor Securities Purchase Agreement and to a consultant, filed as Exhibit 10.4 to the 
Company’s Current Report on Form 8-K filed on December 18, 2007, is incorporated herein 
by reference.  

52 

 
10.15 

10.16 

10.17 

10.18 

*10.19 

*10.20 

14. 
23.1 
23.2 
24. 
31.1. 

31.2. 

32.1 

32.2 

Registration Rights Agreement, dated as of December 24, 2007, by and among Rexahn 
Pharmaceuticals, Inc. and the purchasers pursuant to the KT&G Securities Purchase 
Agreement, the Rexgene Securities Purchase Agreement, the Jungwoo Securities Purchase 
Agreement, the Kumho Securities Purchase Agreement, the Individual Investor Securities 
Purchase Agreement and a consulting Services Agreement, filed as Exhibit 10.9 to the 
Company Current Report on Form 8-K filed on December 26, 2007, is incorporated herein by 
reference. 
Securities Purchase Agreement, dated as of March 20, 2008, by and between Rexahn 
Pharmaceuticals, Inc. and Jungwoo Family Co., Ltd. (the "Jungwoo Securities Purchase 
Agreement”), filed as Exhibit 10.1 to the Company's current report on Form 8-K filed on 
March 26, 2008, is incorporated herein by reference. 
Securities Purchase Agreement, dated as of March 20, 2008, by and between Rexahn 
Pharmaceuticals, Inc. and Super Bio Co. Ltd., (the "Super Bio Securities Purchase 
Agreement"), filed as Exhibit 10.2 to the Company's current report on Form 8-K filed on 
March 26, 2008, is incorporated herein by reference. 
Form of Warrant for issuance pursuant to the Jungwoo Securities Purchase Agreement and the 
Super Bio Securities Purchase Agreement, filed as Exhibit 10.3 to the Company's current 
report on Form 8-K filed on March 26, 2008, is incorporated herein by reference. 
Employment Agreement, dated July 14, 2008, by and between Rexahn Pharmaceuticals, Inc. 
and Rakesh Soni, filed as Exhibit 10.1 to the Company's Current Report on Form 8-K filed on 
July 16, 2008, is incorporated herein by reference. 
Consulting Agreement, dated August 12, 2008, by and between Rexahn Pharmaceuticals, Inc. 
and Y. Michelle Kang, filed as Exhibit 10.1 to the Company's Current Report on Form 8-K 
filed on August 27, 2008, is incorporated herein by reference. 
Code of Ethics and Business Conduct. 
Consent of Parente Randolph, LLC, independent registered public accounting firm. 
Consent of Lazar Levine & Felix LLP, independent registered public accounting firm. 
Power of Attorney. 
Certification of Chief Executive Officer of Periodic Report Pursuant to Pursuant to Rule 13a-
15(e) or Rule 15d-15(e).  
Certification of Chief Financial Officer of Periodic Report Pursuant to Pursuant to Rule 13a-
15(e) or Rule 15d-15(e). 
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. 

_______________________ 
* Management contract or compensation plan or arrangement.  

53 

 
  
 
 
SIGNATURES 

In accordance with the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the 
issuer has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized 
on this 16th day of March, 2009. 

REXAHN PHARMACEUTICALS, INC. 

By:  /s/ Chang H. Ahn 
Chang H. Ahn 
Chairman and Chief Executive Officer 

In accordance with the requirement of the Securities Exchange Act of 1934, this report has been 
signed on the 16th day of March, 2009 by the following persons on behalf of the issuer and in the 
capacities indicated: 

Name 

/s/ Chang H. Ahn* 
Chang H. Ahn 
/s/ Tae Heum Jeong* 
Tae Heum Jeong 
/s/ Freddie Ann Hoffman* 
Freddie Ann Hoffman 
/s/ David McIntosh* 
David McIntosh 
/s/ Charles Beever* 
Charles Beever 
/s/ Kwang Soo Cheong*  
Kwang Soo Cheong 
/s/ Y. Michele Kang* 
Y. Michele Kang 

Title 
Chairman and Chief Executive Officer 

Chief  Financial  Officer,  Secretary  and 
Director 
Director 

Director 

Director 

Director 

Director 

* By: /s/ Tae Heum Jeong, Attorney-in Fact 

Tae Heum Jeong, Attorney-in-Fact** 

** By authority of the power of attorney filed as Exhibit 24 hereto.   

54 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm 

To the Board of Directors and Stockholders 
Rexahn Pharmaceuticals, Inc. 
Rockville, Maryland: 

We have audited the balance sheet of Rexahn Pharmaceuticals, Inc. (the “Company”) (a development stage 
company)  as  of  December  31,  2008,  and  the  related  statements  of  operations,  stockholders’  equity  and 
comprehensive loss, and cash flows for the year then ended and the amounts in the cumulative from inception 
column in the statements of operations and cash flows for the year then ended.  These financial statements are 
the  responsibility  of  the  Company’s  management.    Our  responsibility  is  to  express  an  opinion  on  these 
financial statements based on our audit. 

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board 
(United States).  Those standards require that we plan and perform the audit to obtain reasonable assurance 
about whether the financial statements are free of material misstatement.  An audit includes examining, on a 
test basis, evidence supporting the amounts and disclosures in the financial statements.  An audit also includes 
assessing the accounting principles used and significant estimates made by management, as well as evaluating 
the  overall  financial  statement  presentation.    We  believe  that  our  audit  provides  a  reasonable  basis  for  our 
opinion. 

In our opinion, the financial statements referred to above present fairly, in all material respects, the financial 
position of Rexahn Pharmaceuticals, Inc. as of December 31, 2008, and the results of its operations and its 
cash  flows  for  the  year  then  ended  and  the  amounts  included  in  the  from  inception  columns  in  the 
consolidated statements of operations and cash flows for the year then ended in conformity with accounting 
principles generally accepted in the United States of America. 

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board 
(United  States),  Rexahn  Pharmaceuticals,  Inc.  internal  control  over  financial  reporting  as  of  December  31, 
2008,  based  on  criteria  established  in  Internal  Control-Integrated  Framework  issued  by  the  Committee  of 
Sponsoring  Organizations  of  the  Treadway  Commission  (COSO),  and  our  report  dated  March  10,  2009 
expressed an unqualified opinion. 

/s/ Parente Randolph, LLC 

Morristown, New Jersey 
March 10, 2009 

F-1 

 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm 

Board of Directors and Stockholders of 
Rexahn Pharmaceutical, Inc. 
Rockville, Maryland: 

We  have  audited  the  accompanying  balance  sheet  of  Rexahn  Pharmaceuticals,  Inc.  (a  development  stage 
company)  as  of  December  31,  2007  and  the  related  statements  of  operations,  stockholders’  equity  and 
comprehensive  loss  and  cash  flows  for  the  year  ended  December  31,  2007  and  the  cumulative  period  from 
inception (March 19, 2001) to December 31, 2007.  These financial statements are the responsibility of the 
Company’s management.  Our responsibility is to express an opinion on these financial statements based on 
our audits. 

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board 
(United States).  Those standards require that we plan and perform the audit to obtain reasonable assurance 
about  whether  the  financial  statements  are  free  of  material  misstatement.    The  Company  is  not  required  to 
have, nor were we  engaged to perform, an audit of its internal control over financial reporting.  Our audits 
included  consideration  of  internal  control  over  financial  reporting  as  a  basis  for  designing  audit  procedures 
that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness 
of  the  Company’s  internal  control  over  financial  reporting.    Accordingly,  we  express  no  such  opinion.   An 
audit includes examining, on the test basis, evidence supporting the amounts and disclosures in the financial 
statements, assessing the accounting principles used and significant estimates made by management, as well 
as  evaluating  the  overall  financial  statement  presentation.    We  believe  that  our  audit  provides  a  reasonable 
basis for our opinion. 

In our opinion, the financial statements referred to above present fairly, in all material respects, the financial 
position of Rexahn Pharmaceuticals, Inc. at December 31, 2007 and the results of its operations and its cash 
flows for the year then ended and the cumulative period from inception (March 19, 2001) to December 31, 
2007, in conformity with accounting principles generally accepted in the United States of America. 

/s/ LAZAR LEVINE & FELIX LLP 

New York, New York 
March 24, 2008 

F-2 

 
 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Balance Sheets 

December 31, 
2008 

December 31, 
2007 

ASSETS 

Current Assets: 

Cash and cash equivalents 
Marketable securities (note 3) 
Prepaid expenses and other (note 4) 

Total Current Assets 
Equipment, Net (note 5) 
Intangible Assets, Net (note 6) 
Total Assets 

$

$

369,130 
2,999,750 
366,765 
3,735,645 
92,212 
286,132 
4,113,989 

LIABILITIES AND STOCKHOLDERS' EQUITY 

Current Liabilities: 

Accounts payable and accrued expenses (note 7) 

Total Current Liabilities 
Deferred Revenue (note 8)  

$

358,894 
358,894 
1,050,000 

$

$

$

3,809,571 
3,550,000 
717,205 
8,076,776 
102,951 
303,943 
8,483,670 

606,832 
606,832 
1,125,000 

Total Liabilities 

Commitment and Contingencies (note 12) 
Stockholders' Equity (note 9): 

1,408,894 

1,731,832 

Preferred stock, par value $0.0001, 100,000 authorized shares, 
none issued and outstanding 
Common stock, par value $0.0001, 500,000,000 authorized 
shares, 56,039,854 (2007 – 55,306,996) issued and 56,025,649 
(2007 – 55,292,791) outstanding  
Additional paid-in capital 
Accumulated deficit during the development stage 
Treasury stock, 14,205 (2007 – 14,205) shares, at cost 
Accumulated other comprehensive (loss) 

- 

- 

5,604 
33,184,860 
(29,906,479) 
(28,410) 
(550,480) 

5,530 
31,769,049 
(24,994,331)
(28,410)

- 

Total Stockholders' Equity 

2,705,095 

6,751,838 

Total Liabilities and Stockholders' Equity  

$

4,113,989 

$

 8,483,670 

(See the notes accompanying the financial statements.) 

F-3 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Statements of Operations 

Revenue: 

Research 

Expenses: 

General and administrative 
Research and development 
Patent fees 
Depreciation and amortization 

Total Expenses 

Loss from Operations 

Other (Income) Expense 

Realized loss on marketable securities 

Interest  income 

Interest expense 
Beneficial conversion feature 

Years Ended 
December 31, 

2008 

2007 

Cumulative from March 19, 
2001 (Inception) to 
December 31, 2008 

$

 75,000 

$

75,000 

$ 

450,000 

2,525,705 
2,429,507 
216,360 
55,743 

5,227,315 

2,728,152 
 1,527,294 
186,613 
65,070 

4,507,129 

 14,864,439 
13,231,844 
921,833 
 503,204 

29,521,320 

(5,152,315) 

(4,432,129) 

(29,071,320) 

20,366 
(260,533)  

- 
- 

- 

(128,124)  

- 
- 

20,366 
(1,111,354) 

301,147 
1,625,000 

(240,167)  

(128,124)  

835,159 

Loss Before Provision for Income Taxes 

 (4,912,148)  

 (4,304,005)  

 (29,906,479) 

Provision for Income Taxes 

-

- 

- 

Net Loss 

Net  Loss  per  share  outstanding,  basic  and 

diluted  

Weighted 

average 

number 

of 

shares 

outstanding,  basic and diluted 

$

$

 (4,912,148)  

(0.09) 

$

$

 (4,304,005)  

$ 

(29,906,479) 

(0.09) 

55,856,991 

50,332,642 

(See the notes accompanying the financial statements.) 

F-4 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Statements of Stockholders' Equity and Comprehensive Loss  
Period from March 19, 2001 (Inception) to December 31, 2008 

Common Stock  

Treasury Stock  

Number of 
shares 

Amount 

Number of 
shares 

Amount  

Additional 
Paid -  
Capital 

Accumulated 
Other 
Comprehensive  
Loss 

Accumulated 
Deficit  
During the  
Development  
Stage 

Total 
Stockholders’ 
Equity (Deficit)

- 

  $ 

7,126,666 
-  

7,126,666 
-  

7,126,666 
500,000 
- 
- 

 7,626,666 
1,500 
- 
- 

-  
71,266 
- 

71,266 
- 

71,266 
5,000 
- 
- 

76,266 
15 
- 
- 

7,628,166 
 30,512,664 

76,281 
(72,467)    

3,397,802 

 4,175,000 

 650,000 
 40,000 

7,000 

-  
- 
- 

340 

17 

65 
4 

1 

- 
- 
- 

 46,410,632 
 61,705 

4,641 
6 

  $ 

- 
-
-

-
-

-
-
-
-

-
-
-
-

-
-

-

-

-
-

-

-
-
-

-
-

-
-
-

-
-

-
-
-
-

-
-
-
-

-
-

-

-

-
-

-

-
-
-

-
-

3,850,000 
- 
- 
- 

385 
- 
- 
- 

-
14,205 
-
-

-
(28,410)
-
-

  $ 

  $ 

-
4,448,702
-

4,448,702 
-

4,448,702 
1,995,000 
538,074 
-

6,981,776 
1,785 
230,770 
-

7,214,331 
72,467 

(340)

8,349,565 

1,299,935 
9,596 

21,876 

1,625,000 
436,748 
- 

19,029,178 
14,802 

3,849,615 
-
1,033,956 
-

- 
- 
- 

- 
- 

- 
- 
- 
- 

- 
- 
- 
- 

- 
- 

- 

- 

- 
- 

- 

- 
- 
- 

- 
- 

- 
- 
- 
- 

  $ 

- 
- 
(625,109) 

  $ 

-
4,519,968 
(625,109)

(625,109) 
(1,181,157) 

(1,806,266) 
- 
- 
(2,775,075) 

(4,581,341) 
- 
- 
(3,273,442) 

(7,854,783) 
- 

- 

- 

- 
- 

- 

- 
- 
(6,349,540) 

(14,204,323) 
- 

- 
- 
- 
(6,486,003) 

3,894,859 
(1,181,157)

2,713,702 
2,000,000 
538,074 
(2,775,075)

2,476,701 
1,800 
230,770 
(3,273,442)

(564,171)
-

-

8,349,982 

1,300,000 
9,600 

21,877 

1,625,000 
436,748 
(6,349,540)

4,829,496 
14,808 

3,850,000 
(28,410)
1,033,956 
(6,486,003)

50,322,337 

  $ 

5,032 

14,205 

  $   (28,410)

  $  23,927,551 

  $ 

- 

  $  (20,690,326) 

  $ 

3,213,847 

Opening balance, March 

19, 2001  

Common shares issued` 
Net loss 
Balances at, December 31, 

2001  
Net loss 
Balances at, December 31, 

2002 

Common shares issued 
Stock option compensation 
Net loss 
Balances at, December 31, 

2003 

Common shares issued 
Stock option compensation 
Net loss 
Balances at, December 31, 

2004 

Stock split (5 for 1) 
Common shares issued in 
connection with merger 
Common shares issued for 

cash 

Common shares issued on 

conversion of convertible 
debt 

Exercise of stock options 
Common shares issued in 
exchange for services 

Beneficial conversion 

feature   

Stock option compensation 
Net loss 
Balances at, December 31, 

2005 

Exercise of stock options 
Common shares issued on 

conversion of convertible 
debt 

Purchase of treasury stock 
Stock option compensation 
Net loss 
Balances at, December 31, 

2006 

(See the notes accompanying the financial statements.) 

F-5 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
   
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
    
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Statements of Stockholders' Equity and Comprehensive Loss  
Period from March 19, 2001 (Inception) to December 31, 2008 

 Common Stock  

 Treasury Stock  

Additional 

Other 

 During the  

 Stockholders’ 

 Number of  

 Number of 

 shares  

 Amount  

 shares  

 Amount  

Paid -  

Capital 

Comprehensive 

 Development 

Loss 

 Stage  

 Equity  

 (Deficit)  

 Accumulated 

Accumulated 

 Deficit  

 Total  

Balances at, December 31, 

2006 

Common shares issued for 

cash 

Exercise of stock options 
Stock option compensation 
Share issuance costs 

Net loss 

Balances at, December 31, 

50,322,337 

  $  5,032  

    14,205  

  $  (28,410)

  $  23,927,551 

  $ 

4,857,159 

127,500 
- 
- 

- 

486  

12  
- 
- 

- 

- 

- 
- 
- 

- 

- 

- 
- 
- 

- 

6,799,538 

59,988 
1,121,646 
(139,674)

- 

2007 

55,306,996 

5,530  

    14,205  

     (28,410)

  31,769,049 

Common shares issued  

Exercise of stock options 

628,858 

90,000 

65 

9  

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

899,936 

31,191 

484,684 

- 

- 

- 

Stock option compensation 
expense 

Net (loss) 
Unrealized loss on 

securities available for 
sale 

Balances at, December 31, 

2008 

- 

- 

- 
- 
- 

- 

- 

- 

- 

- 

- 

  $ (20,690,326)

  $  3,213,847 

- 

- 
- 
- 

6,800,024 

60,000 
1,121,646 
 (139,674)

(4,304,005)

(4,304,005)

  (24,994,331)

6,751,838 

- 

- 

- 

(4,912,148)

900,001 

31,200 

484,684 

(4,912,148)

(550,480) 

- 

(550,480)

56,039,854 

  $  5,604  

    14,205  

  $  (28,410)

  $  33,184,860 

  $ 

 (550,480) 

  $ (29,906,479)

  $  2,705,095 

(See the notes accompanying the financial statements.) 

F-6 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
 
   
 
   
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
   
   
   
 
 
   
 
 
 
 
 
 
 
 
  
   
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Statement of Cash Flows 

Cash Flows from Operating Activities: 

Net loss 

Adjustments to reconcile net loss to net cash used in 

operating activities: 
Beneficial conversion feature 
Compensatory stock 
Depreciation and amortization 
Stock option compensation expense 
Amortization of deferred revenue 
Realized losses on marketable securities available-
for-sale 

Changes in assets and liabilities: 
Prepaid expenses and other 
Accounts payable and accrued expenses 

Net Cash Used in Operating Activities 

Cash Flows from Investing Activities:` 

Purchase of equipment 
Purchase of marketable securities 
Proceeds from sales of marketable securities 

Net Cash Used in Investing Activities 
Cash Flows from Financing Activities: 

Issuance of common stock 
Proceeds from long-term debt 
Proceeds from research contribution 
Payment of licensing fees 
Principal payments on long-term debt 
Net Cash Provided by Financing Activities 
Net (Decrease) Increase in Cash and Cash 

Equivalents 

Cash and Cash Equivalents - beginning of period 

Years Ended 
December 31, 

2008 

2007 

Cumulative 
From March 19, 
2001 
(Inception) to 
December 31, 
2008 

$ (4,912,148) 

$   (4,304,005) 

$(29,906,479)

- 
- 
55,743 
484,684 
(75,000) 

20,366 

350,440 
(247,938) 
(4,323,853) 

(27,193) 
(5,848,176) 
5,827,580 
(47,789) 

931,201 
- 
- 
- 
- 
931,201 

- 
- 
65,070 
1,121,646 
(75,000) 

 - 

(234,019) 
31,469 
(3,394,839) 

- 
(3,550,000) 

(3,550,000) 

6,720,350 
- 
- 
- 
- 
6,720,350 

1,625,000
21,877
503,585
3,856,834
(450,000)

20,366

(366,765)
358,894
(24,336,688)

(525,713)
(9,398,176)
5,827,580
(4,096,309)

22,536,753
5,150,000
1,500,000
(356,216)
(28,410)
28,802,127

(3,440,441) 
3,809,571 

        (224,489) 
 4,034,060 

369,130
                        -

Cash and Cash Equivalents - end of period 

  $      369,130 

  $ 

3,809,571 

$ 

$369,130

Supplemental Cash Flow Information: 

Interest paid 

$             - 

$                       8,235 

$ 

$301,147 

Non-cash financing and investing activities: 

Warrants 

$      220,004 

  $ 

1,194,283  

    $  $1,414,287

(See the notes accompanying the financial statements.) 

F-7 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
  
  
 
 
 
  
  
  
 
 
 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

1.  Operations and Organization 

Operations, Organization and Management Plans 

Rexahn  Pharmaceuticals,  Inc.  (the  "Company"  or  "Rexahn  Pharmaceuticals"),  a  Delaware 
corporation,  is  a  development  stage  biopharmaceutical  company  dedicated  to  the  discovery, 
development  and  commercialization  of  innovative  treatments  for  cancer,  central  nervous  system 
(CNS) disorders, sexual dysfunction and other medical needs.  The Company had an accumulated 
deficit of approximately $29,900,000 at December 31, 2008 and anticipates incurring losses through 
the year 2009 and beyond.  The Company has not yet generated commercial sales revenue and has 
been able to fund it operating losses to date through the sale of its common stock, issuance of long-
term debt, and proceeds from reimbursed research and development costs.  The Company believes 
that its existing cash and cash equivalents and short-term investments will be sufficient to cover its 
cash  flow  requirements  for  2009.    Management  has  the  capability  of  managing  the  Company’s 
operations  within  existing  cash  and  marketable  securities  available  by  reducing  its  research  and 
development  activities.    This  may  result  in  slowing  down  clinical  studies,  but  will  conserve  the 
Company’s cash to allow it to operate for the next twelve months.   

Reverse Merger Acquisition 

Pursuant to an Agreement and Plan of Merger by and among Rexahn, Corp ("Rexahn"), Corporate 
Road  Show.Com  Inc.  ("CRS"),  a  New  York  corporation  and  predecessor  corporation  of  the 
Company,  CRS  Merger  Sub,  Inc.,  a  Delaware  corporation  and  wholly  owned  subsidiary  of  CRS 
("Merger Sub"), CRS Delaware, Inc., a Delaware corporation and wholly owned subsidiary of CRS 
("CRS  Delaware"),  immediately  after  giving  effect  to  a  1-for-100  reverse  stock  split  and  the 
reincorporation  of  CRS  as  a  Delaware  corporation  under  the  name  Rexahn  Pharmaceuticals,  Inc. 
("Rexahn  Pharmaceuticals"),  on  May  13,  2005,  Merger  Sub  merged  with  and  into  Rexahn,  with 
Rexahn  surviving  as  a  wholly  owned  subsidiary  of  Rexahn  Pharmaceuticals  (the  "Acquisition 
Merger"). In the Acquisition Merger, (i) each share of the issued and outstanding common stock of 
Rexahn (other than dissenting shares) was converted into the right to receive five shares of Rexahn 
Pharmaceuticals  common  stock;  and  (ii)  each  issued,  outstanding  and  unexercised  option  to 
purchase a share of Rexahn common stock was converted into an option to purchase five shares of 
Rexahn Pharmaceuticals common stock. 

Shares  of  Rexahn  Pharmaceuticals  common  stock  issued  in  the  Acquisition  Merger  were  exempt 
from the registration requirements of the Securities Act of 1933, as amended (the "Securities Act"), 
pursuant  to  Regulation  D  under  the  Securities  Act  and/or  Regulation  S  under  the  Securities  Act. 
These shares of Rexahn Pharmaceuticals common stock are deemed "restricted securities" and bear 
an appropriate restrictive legend indicating that the resale of such shares may be made only pursuant 
to registration under the Securities Act or pursuant to an available exemption from such registration. 

For accounting purposes, the Acquisition Merger was accounted for as a reverse acquisition of CRS 
(legal acquirer) by Rexahn (accounting acquirer).  As a result, following the Acquisition Merger, the 
historical financial statements of Rexahn became the historical financial statements of the Company. 

F-8 

 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

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”  securities  in  accordance  with  FAS 
No. 115,  “Accounting  for  Certain  Investments  in  Debt  and  Equity  Securities”,  and  thus  are 
reported  at  fair  value  in  our  accompanying  balance  sheets,  with  unrealized  gains  and  losses 
excluded  from  earnings  and  reported  as  a  separate  component  of  stockholders’  equity.  
Realized gains and losses are accounted on the basis of specific identification and are included 
in  other  income  (expense)  in  our  income  statements.    If  a  decline  in  the  fair  value  of  a 
marketable security below the Company’s cost basis is determined to be other than temporary, 
such marketable security is written down to its estimated fair value as a new cost basis and the 
amount  of  the  write-down  is  included  in  earnings  as  an  impairment  charge.  To  date,  only 
temporarily impairment charges have been recorded in any of the years presented herein.  We 
classify  marketable  securities  as  current  assets  on  our  balance  sheets  as  the  investments  are 
readily marketable and available for use in our current operations.   

c) 

Equipment 

Equipment is stated at cost less accumulated depreciation. Depreciation, based on the estimated 
useful lives of the assets, is provided as follows: 

Furniture and fixtures 
Office equipment 
Lab and computer equipment 

7 years 
5 years 
5-7 years 

double declining balance 
double declining balance 
double declining balance 

Life  Depreciation Method 

d)  Research and Development  

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

Costs  incurred  in  obtaining  the  license  rights  to  technology  in  the  research  and  development 
stage and that have no alternative future uses are expensed as incurred. 

e)  Use of Estimates 

The  preparation  of  financial  statements  in  conformity  with  accounting  principles  generally 
accepted  in  the  United  States  requires  management  to  make  estimates  and  assumptions  that 

F-9 

 
 
 
 
 
 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

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 those 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,  prepaid  expenses  and  other  current  assets  and  accounts  payable  and  accrued 
expenses  approximate  fair  value  because  of  the  short-term  maturity  of  these  financial 
instruments.   

g) 

Income Taxes 

The  Company  accounts  for  income  taxes  pursuant  to  Statement  of  Financial  Accounting 
Standards ("FAS") No. 109, "Accounting for 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.    Valuation  allowances  are  established  when  necessary  to  reduce  deferred  tax 
assets to the amount expected to be realized.  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.    The  Company  has  adopted  FASB 
Interpretation  No.  48,  or  FIN  48,  Accounting  for  Uncertainty  in  Income  Taxes,  issued  July 
2006.  FIN  48  applies  to  all  tax  positions  related  to  income  taxes  subject  to  FAS  No.  109.  
Under FIN 48, we recognize the benefit from a tax position only if it is more-likely-than-not 
that the position would be sustained upon an audit based solely on the technical merits of the 
tax position.  Our policy to include interest and penalties related to unrecognized tax benefits as 
a component of income tax expense did not change as a result of implementing FIN 48.  

h)   Earnings or Loss Per Share: 

The Company accounts for earnings per share pursuant to FAS No. 128, "Earnings per Share", 
which  requires  disclosure  on  the  financial  statements  of  "basic"  and  "diluted"  earnings  (loss) 
per  share.    Basic  earnings  (loss)  per  share  is  computed  by  dividing  net  income  (loss)  by  the 
weighted average number of common shares outstanding for the year.  Diluted earnings (loss) 
per  share  is  computed  by  dividing  net  income  (loss)  by  the  weighted  average  number  of 
common  shares  outstanding  plus  potentially  dilutive  securities  outstanding  for  each  year. 
Potentially dilutive securities include stock options and warrants and shares of common stock 
issuable upon conversion of the Company's convertible notes. 

Diluted loss per share for the years ended December 31, 2008 and 2007 is the same as basic 
loss  per  share,  since  the  effects  of  the  calculation  were  anti-dilutive  due  to  the  fact  that  the 
Company  incurred  losses  for  all  periods  presented.  The  following  securities,  presented  on  a 
common share equivalent basis, have been excluded from the per share computations: 

F-10 

 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

Stock Options 

Warrants 

For the years ended  

December 31,  
2008 

December 31,  
2007 

7,760,795 

6,045,795 

1,207,148 
8,967,943 

1,078,576 
7,124,371 

i) 

Stock-Based Compensation 

Effective  January  1,  2006,  the  Company’s  Stock-based  Employee  Compensation  Plan  is 
accounted for in accordance with the recognition and measurement provisions of Statement of 
Financial Accounting Standards ("FAS") No. 123 (revised 2004), Share-Based Payment ("FAS 
123(R)"),  which  replaces  FAS  No.  123,  Accounting  for  Stock-Based  Compensation,  and 
supersedes  Accounting  Principles  Board  Opinion  ("APB")  No.  25,  Accounting  for  Stock 
Issued  to  Employees,  and  related  interpretations.  FAS  123(R)  requires  compensation  costs 
related  to  share-based  payment  transactions,  including  employee  stock  options,  to  be 
recognized  in  the  financial  statements.  In  addition,  the  Company  adheres  to  the  guidance  set 
forth within Securities and Exchange Commission ("SEC") Staff Accounting Bulletin No. 107 
("SAB  107"),  which  provides  the  Staff's  views  regarding  the  interaction  between  FAS  No. 
123(R) and certain SEC rules and regulations and provides interpretations with respect to the 
valuation of share-based payments for public companies.  See footnote 9 for further details.  

j) 

Impairment of Long-Lived Assets and Intangible Assets 

In accordance with FAS No. 144, "Accounting for the Impairment or Disposal of Long-Lived 
Assets", long-lived assets to be held and used are analyzed for impairment whenever events or 
changes  in  circumstances  indicate  that  the  related  carrying  amounts  may  not  be  recoverable.  
The  Company  evaluates  at  each  balance  sheet  date  whether  events  and  circumstances  have 
occurred  that  indicate  possible  impairment.    If  there  are  indications  of  impairment,  the 
Company uses future undiscounted cash flows of the related asset or asset grouping over the 
remaining life in measuring whether the assets are recoverable.  In the event such cash flows 
are  not  expected  to  be  sufficient  to  recover  the  recorded  asset  values,  the  assets  are  written 
down to their estimated fair value.   

F-11 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

k)  Concentration of Credit Risk 

The  Company  does  not  have  significant  off-balance  sheet  risk  or  credit  concentration.    The 
Company  maintains  cash  and  marketable  securities  with  major  financial  institutions.    From 
time to time the Company has funds on deposit with commercial banks that exceed federally 
insured  limits.    As  of  December  31,  2008,  the  Company  had  cash  of  $119,130  in  excess  of 
insured limits.  The marketable securities are not covered by any federal insurance programs. 

l)  Comprehensive Loss 

Comprehensive  loss  for  2008  was  $5,462,628  which  is  comprised  of  $550,480  of  other 
comprehensive loss and net loss for the year ended December 31, 2008 of $4,912,148 

m)  Recent Accounting Standards Affecting the Company 

Effective January 1, 2008, the Company adopted Statement of Financial Accounting Standards 
No. 159, The Fair Value Option for Financial Assets and Financial Liabilities (“FAS 159”).  
FAS 159 provides companies an option to report certain financial assets and liabilities at fair 
value and established presentation and disclosure requirements.  The intent of FAS 159 is to 
reduce  the  complexity  in  accounting  for  financial  instruments  and  the  volatility  of  earnings 
caused by measuring related assets and liabilities differently.  The Company chose not to elect 
the fair value option for its financial assets and liabilities exiting at January 1, 2008, and did 
not  elect  the  fair  value  option  on  financial  assets  and  liabilities  transacted  during  the  year 
ended  December  31,  2008.    Therefore,  the  adoption  of  SFAS  159  had  no  impact  on  the 
Company’s  financial  statements.    Effective  January 1,  2008,  the  Company  adopted  FAS  No. 
157, with the exception of the application of the statement to non-recurring nonfinancial assets 
and  nonfinancial  liabilities.  The  adoption  of  FAS  No.  157  did  not  impact  the  Company’s 
financial position or results of operations. 

 In  December  2007,  FASB  issued  FAS  No.  141  (revised  2007),  "Business  Combinations" 
("FAS  No.  141(R)").  This  statement  replaces  FAS  No.  141,  "Business  Combinations"  and 
requires  an  acquirer  to  recognize  the  assets  acquired,  the  liabilities  assumed,  including  those 
arising  from  contractual  contingencies,  any  contingent  consideration,  and  any  noncontrolling 
interest in the acquiree at the acquisition date, measured at their fair values as of that date, with 
limited exceptions specified in the statement. FAS No. 141(R) also requires the acquirer in a 
business  combination  achieved  in  stages  (sometimes  referred  to  as  a  step  acquisition)  to 
recognize  the  identifiable  assets  and  liabilities,  as  well  as  the  noncontrolling  interest  in  the 
acquiree, at the full amounts of their fair values (or other amounts determined in accordance 
with  FAS  No.  141(R)).  In  addition,  FAS  No.  141(R)'s  requirement  to  measure  the 
noncontrolling  interest  in  the  acquiree  at  fair  value  will  result  in  recognizing  the  goodwill 
attributable to the noncontrolling interest in addition to that attributable to the acquirer. FAS 
No. 141(R) amends FAS No. 109, "Accounting for Income Taxes", to require the acquirer to 
recognize changes in the amount of its deferred tax benefits that are recognizable because of a 
business  combination  either  in  income  from  continuing  operations  in  the  period  of  the 
combination or directly in contributed capital, depending on the circumstances. It also amends 
FAS  No.  142,  "Goodwill  and  Other  Intangible  Assets",  to,  among  other  things,  provide 

F-12 

 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

guidance on the impairment testing of acquired research and development intangible assets and 
assets that the acquirer intends not to use. FAS No. 141(R) applies prospectively to business 
combinations  for  which  the  acquisition  date  is  on  or  after  the  beginning  of  the  first  annual 
reporting period beginning on or after December 15, 2008. The adoption of FAS No. 141(R) 
will not have an impact on the Company's financial statements. 

In  December  2007,  FASB  issued  FAS  No.  160,  “Noncontrolling  Interests  in  Consolidated 
Financial Statements—amendment of Accounting Research Bulletin No. 51” (“FAS No. 160”). 
FAS No. 160 establishes accounting and reporting standards for the noncontrolling interest in a 
subsidiary  and  for  the  deconsolidation  of  a  subsidiary.  It  also  clarifies  that  a  noncontrolling 
interest  in  a  subsidiary  is  an  ownership  interest  in  the  consolidated entity  that  should  be 
reported as equity in the consolidated financial statements. FAS No. 160 also changes the way 
the  consolidated  income  statement  is  presented  by  requiring  consolidated  net  income  to  be 
reported  at  amounts  that  include  the  amounts  attributable  to  both  the  parent  and  the 
noncontrolling interest. It also requires disclosure, on the face of the consolidated statement of 
income,  of  the  amounts  of  consolidated  net  income  attributable  to  the  parent  and  to  the 
noncontrolling  interest.  FAS  No.  160  requires  that  a  parent  recognize  a  gain  or  loss  in  net 
income  when  a  subsidiary  is  deconsolidated  and  requires  expanded  disclosures  in  the 
consolidated financial statements that clearly identify and distinguish between the interests of 
the parent owners and the interests of the noncontrolling owners of a subsidiary. FAS No.160 
is  effective  for  fiscal  periods,  and  interim  periods  within  those  fiscal  years,  beginning  on  or 
after  December  15,  2008.  The  adoption  of  FAS  No.  160  will  not  have  an  impact  on  the 
Company’s financial statements. 

In  March  2008,  FASB  issued  FAS  No.  161,  "Disclosures  about  Derivative  Instruments  and 
Hedging Activities - an amendment of FASB Statement No. 133" ("FAS 161"). FAS No. 161 
changes the disclosure requirements for derivative instruments and hedging activities. Entities 
are required to provide enhanced disclosures about (a) how and why an entity uses derivative 
instruments, (b) how derivative instruments and related hedged items are accounted for under 
Statement  133  and  its  related  interpretations,  and  (c)  how  derivative  instruments  and  related 
hedged items affect an entity's financial position, financial performance, and cash flows. FAS 
No. 161 is effective for fiscal years and interim periods beginning after November 15, 2008. 
The Company is currently assessing the potential impact that the adoption of FAS 161 could 
have on its financial statements. 

In June 2007, the EITF issued EITF Issue No. 07-03, “Accounting for Advance Payments for 
Goods or Services to Be Used in Future Research and Development,” (“EITF 07-03”).  EITF 
07-03  addresses  the  accounting  for  the  non-refundable  portion  of  a  payment  made  by  a 
research  and  development  entity  for  future  research  and  development  activities.    Pursuant  to 
EITF  07-03,  an  entity  is  required  to  defer  and  capitalize  non-refundable  advance  payments 
made  for  research  and  development  activities  until  the  related  goods  are  delivered  or  the 
related  services  are  performed.    EITF  07-03  is  effective  for  fiscal  years  beginning  after 
December 15, 2007.  We adopted EITF 07-03 beginning in the first quarter of our 2008 fiscal 
year and it did not have a material impact to our financial position or results of operations.  

F-13 

 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

3.  Marketable Securities 

The following is a summary of marketable securities: 

Gross 
Unrealized 
Gains 

Gross 
Unrealized 
Losses 

Estimated 
Fair Value 

Cost 

December 31, 2008 

State authority auction rate bonds 

$ 3,550,000

$             0 

$ 550,250 

$ 2,999,750 

$ 3,550,000

$             0 

$ 550,250 

$ 2,999,750 

December 31, 2007 

State authority auction rate bonds 

$ 3,550,000

$             0 

$            0 

$ 3,550,000 

$ 3,550,000

$             0 

$            0 

$ 3,550,000 

The amortized cost and estimate fair value of marketable securities on December 31, 2008, by 

contractual maturities, are shown below: 

Due in one year or less 
Due in two to ten years 
Due in ten to twenty years 
Due in twenty to forty years 

Cost 

$              0 
                0 
                0 
  3,550,000 

Estimated 
Fair Value 

$              0 
                0 
                0 
  2,999,750 

$ 3,550,000 

$ 2,999,750 

In January 2009, the Company redeemed all of its marketable securities at their cost of 

$3,550,000. 

4.  Prepaid Expenses and Other 

Deposits on contracts 
Other assets 

F-14 

December 31, 
2008 

December 31,
2007 

  $ 

294,337 
72,428 

  $ 

679,769
37,436

  $ 

366,765 

  $ 

717,205

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

5.  Equipment, Net 

Furniture and fixtures 
Office equipment 
Lab and computer equipment 

Less: Accumulated depreciation 

December 31, 
2008 

December 31,
2007 

  $ 

  $ 

31,713 
70,276 
423,724 

31,713
43,648
423,159

525,713 
(433,501) 

498,520
(395,569)

Net carrying amount 

  $ 

92,212 

  $ 

102,951

Depreciation expense was $37,932 and $47,042 for the years ended December 31, 2008 and 2007, 
respectively. 

6. 

Intangible Assets, Net 

into  a 

the  Company  entered 

On  February  10,  2005, 
licensing  agreement  with  Revaax 
Pharmaceuticals LLC ("Revaax"), whereby the Company received an exclusive, worldwide, royalty 
bearing  license,  with  the  right  to  sub-license  Revaax's  licensed  technology  and  products.    The 
agreement called for an initial licensing fee of $375,000 to be payable to Revaax in eight quarterly 
installments ending on November 10, 2006.  Accordingly, the Revaax license has been measured at 
fair  value  at  the  date  the  licensing  agreement  was  entered  into.    The  fair  value  of  the  license 
component of $356,216 was determined by discounting the stream of future quarterly payments of 
$46,875  at  6%,  the  prevailing  market  rate  for  a  debt  instrument  of  comparable  maturity  and  credit 
quality.  The asset is amortized on a straight line basis over the estimated useful life of 20 years.  The 
discount  was  accreted  over  the  term  of  the  liability,  calculated  based  on  the  Company's  estimated 
effective market interest rate of 6%. During 2006 the outstanding balance was paid.  Amortization 
expense  was  $17,811  and  $18,028  for  the  years  ended  December  31,  2008  and  2007  respectively. 
Management does not believe that there is an impairment of intangible assets at December 31, 2008. 

The following table sets forth the intangible asset: 

Revaax license, original cost 
Less: Accumulated amortization  

Balance 

December 31,  December 31,

2008 

2007 

  $ 

356,216 
(70,084) 

  $ 

356,216
(52,273)

  $ 

286,132 

  $ 

303,943

Amortization over the next five (5) years and thereafter is as follows: 

F-15 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
   
   
 
 
 
 
 
 
 
 
   
   
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

2009 
2010 
2011 
2012 
2013 
Thereafter 

$ 

17,811 
17,811 
17,811 
17,811 
17,811 
197,077 

$  286,132 

7.  Accounts Payable and Accrued Expenses 

Trade payables 
Accrued expenses 
Payroll liabilities 

8.  Deferred Revenue 

December 31, 
2008 

December 31,
2007 

  $ 

  $ 

136,906 
98,486 
123,502 

246,786
259,871
100,175

  $ 

358,894 

  $ 

606,832

In 2003, the Company entered into a collaborative research agreement with Rexgene Biotech Co., 
Ltd.  ("Rexgene"),  a  minority  stockholder. 
  Rexgene  is  engaged  in  the  development  of 
pharmaceutical  products  in  Asia  and  has  agreed  to  assist  the  Company  with  the  research, 
development and clinical trials necessary for registration of the Company's drug candidate, RX-0201, 
in Asia.  This agreement provides Rexgene with exclusive rights to license, sublicense, make, have 
made, use, sell and import RX-0201 in Asia. A one-time contribution to the joint development and 
research  of  RX-0201  of  $1,500,000  was  paid  to  the  Company  in  2003  in  accordance  with  the 
agreement.  The amount of revenue from this contribution is being recognized as income over the 
term  of  the  agreement  which  terminates  at  the  later  of  20  years  or  the  term  of  the  patent  on  the 
licensed product. 

The Company is using 20 years as its basis for recognition and accordingly $75,000 was included in 
revenues for the years ended December 31, 2008 and 2007.  The remaining $1,050,000 at December 
31, 2008 (2007 - $1,125,000) is reflected as deferred revenue on the balance sheet.  The Company 
adopted  SAB  No.  104,  "Revenue  Recognition  Nonrefundable  Up-front  Fees"  with  respect  to  the 
accounting for this transaction. These fees are being used in the cooperative funding of the costs of 
development of RX-0201.  Royalties of 3% of net sales of licensed products will become payable to 
the  Company  on  a  quarterly  basis  once  commercial  sales  of  RX-0201  begin.  The  product  is  still 
under development and commercial sales are not expected to begin until at least 2010. 

9.  Common Stock  

The following transactions occurred during fiscal years 2001 through December 31, 2008: 

F-16 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
   
   
 
 
 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

a)  On  May  10, 2001  the  Company  issued  3,600,000  shares  of  common  stock  to  the  Company's 

founders for $1. 

b)  On August 10, 2001 the Company issued:  

i) 

1,208,332  shares  of  common  stock  to  the  directors  of  the  Company  for  cash  of 
$1,450,000. 

ii) 

958,334 shares of common stock to Rexgene for cash of $550,000. 

iii)  360,000 shares of common stock in a private placement to individual investors for cash 

of $1,080,000. 

These share purchases were negotiated by the parties at various dates prior to the August 10, 
2001 share issuance date. 

c)  On  October  10,  2001  the  Company  issued  400,000  shares  of  common  stock  to  Chong  Kun 
Dang  Pharmaceutical  Corp.  ("CKD")  for  cash  of  $479,991  and  400,000  shares  of  common 
stock to an individual investor for cash of $479,991. 

d)  On October 10, 2001 the Company issued 200,000 shares of common stock to CKD for cash of 

$479,985. 

e) 

f) 

Since inception, the Company's founders have transferred 800,000 shares of the common stock 
described in a) to officers and directors of the Company. 

In July 2003, the shareholders described in b)(iii) and e) transferred an aggregate of 1,268,332 
shares of common stock to a voting trust.  The trust allows for the unified voting of the stock 
by the trustees.  The appointed trustees are senior management of the Company who, together 
with their existing shares, control a majority of the voting power of the Company. 

g)  On  August  20,  2003  the  Company  issued  500,000  shares  of  common  stock  to  KT&G 

Corporation for cash of $2,000,000. 

h)  On October 29, 2004, an option holder exercised options to purchase shares of the Company’s 
common stock for cash of $1,800 and the Company issued an aggregate of 1,500 shares. 

i) 

Pursuant to the agreement and plan of merger which occurred on May 13, 2005, (i) each share 
of  the  issued  and  outstanding  common  stock  of  Rexahn,  Corp  (“Rexahn”)  (other  than 
dissenting  shares)  was  converted  into  the  right  to  receive  five  shares  of  Rexahn 
Pharmaceuticals  common  stock;  (ii)  each  issued,  outstanding  and  unexercised  option  to 
purchase  a  share  of  Rexahn  common  stock  was  converted  into  an  option  to  purchase  five 
shares of Rexahn Pharmaceuticals common stock and (iii) the par value of Rexahn's common 
stock  was  adjusted  to  reflect  the  par  value  of  Corporate  Road  Show.  Com  Inc.  (“CRS”) 
common  stock.    In  the  acquisition  merger,  289,780,000  CRS  pre-reverse  stock  split  shares 
were converted into 2,897,802 post-reverse stock split Rexahn Pharmaceuticals shares, and an 
additional  500,000  post-reverse  stock  split  Rexahn  Pharmaceuticals  shares  were  issued  to  a 
former  executive  of  CRS.  For  purposes  of  the  Statement  of  Stockholders'  Equity,  the 
five-for-one stock split is reflected as a one-line adjustment.  All shares and earnings per share 
information has been retroactively restated in these financial statements. 

F-17 

 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

j)  On August 8, 2005, the Company issued, in a transaction exempt from registration under the 
Securities Act, 4,175,000 shares of common stock at a purchase price of $2.00 per share. 

k)  On  October  3,  2005,  the  Company  issued  7,000  shares  of  common  stock  for  $21,877  and 

$7,500 cash in exchange for services. 

l)  On  December  2,  2005,  the  holders  of  a  convertible  note,  representing  $1,300,000  aggregate 
principal amount, exercised their option to convert the entire principal amount of the note into 
the  Company's  common  stock.    Based  on  a  $2.00  per  share  conversion  price,  the  holders 
received an aggregate of 650,000 shares. 

m)  On December 27, 2005, option holders exercised options to purchase shares of the Company's 
common stock for cash of $9,600 and the Company issued an aggregate of 40,000 shares. 

n)  On February 22, 2006, an option holder exercised options to purchase shares of the Company's 
common stock for cash of $1,200 and the Company issued an aggregate of 5,000 shares. 

o)  On  April  12,  2006,  an  option  holder  exercised  options  to  purchase  shares  of  the  Company’s 
common stock for cash of $3,409 and the Company issued an aggregate of 14,205 shares.  On 
the same date, the Company agreed to repurchase common stock from the option holder based 
on the then market price for treasury in exchange for the aggregate purchase price of $28,410 
in cash.   

p)  On  May 13, 2006,  holders  of  the  $3,850,000  convertible  notes  issued  on  February 28, 2005, 
exercised  their  rights  to  convert  the  entire  principal  amount  of  the  notes  into  shares  of  the 
Company’s common stock.   Based on a $1.00 per share conversion price, the Company issued 
3,850,000 shares of common stock in connection with the conversion. 

q)  On October 9, 2006, an option holder exercised options to purchase shares of the Company’s 
common stock for cash of $2,400 and the Company issued an aggregate of 10,000 shares.   

r)  On  November  19,  2006,  an  option  holder  exercised  options  to  purchase  shares  of  the 
Company's common stock for cash of $1,800 and the Company issued an aggregate of 7,500 
shares. 

s)  On  December  19,  2006,  an  option  holder  exercised  options  to  purchase  shares  of  the 
Company's common stock for cash of $6,000 and the Company issued an aggregate of 25,000 
shares. 

t)  On  April  18,  2007,  an  option  holder  exercised  options  to  purchase  shares  of  the  Company's 
common stock for cash of $14,400 and the Company issued an aggregate of 18,000 shares. 

u)  On  July  23,  2007,  an  option  holder  exercised  options  to  purchase  shares  of  the  Company's 
common stock for cash of $12,000 and the Company issued an aggregate of 15,000 shares. 

v)  On  September  27,  2007,  an  option  holder  exercised  options  to  purchase  shares  of  the 
Company's common stock for cash of $15,600 and the Company issued an aggregate of 19,500 
shares. 

F-18 

 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

w)  On December 18, 2007, the Company issued 4,857,159 units at a price $1.40 per share for total 
gross  proceeds  of  $6,800,023.   Investors  also  were  issued  one  warrant  for  every  five  shares 
purchased.    One  warrant  will  entitle  the  holder  to  purchase  an  additional  share  of  common 
stock at a purchase price of $1.80 at any time over a period of three years from the date of the 
closing  of  the  private  placement  valued  at  $1,103,164  on  closing  and  were  charged  to 
additional  paid  in  capital.  Private  placement  closing  costs  of  $139,674,  including  107,144 
warrants issued, valued at $91,119, were recorded as a reduction of the issuance proceeds. 

x)  On  December  27,  2007,  an  option  holder  exercised  options  to  purchase  shares  of  the 
Company's common stock for cash of $18,000 and the Company issued an aggregate of 75,000 
shares. 

y)  On  March  20,  2008,  the  Company  issued  642,858  units  consisting  of  one  share  of  the 
Company’s  common  stock  and  one  warrant  for  every  five  common  shares  purchased  in  a 
private placement at a price of $1.40 per unit for total gross proceeds of $900,001. One warrant 
will entitle the holder to purchase an additional share of common stock at a price of $1.80 at 
any time over a period of three years from the date of the private placement. The warrants were 
valued at $220,004 and were charged to additional paid-in-capital. 

z)  On  May  30,  2008,  an  option  holder  exercised  options  to  purchase  shares  of  the  Company's 
common stock for cash of $7,200 and the Company issued an aggregate of 30,000 shares. 

aa)  On  June  2,  2008,  an  option  holder  exercised  options  to  purchase  shares  of  the  Company's 
common stock for cash of $12,000 and the Company issued an aggregate of 50,000 shares. 

bb)  On  June  30,  2008,  an  option  holder  exercised  options  to  purchase  shares  of  the  Company's 
common stock for cash of $12,000 and the Company issued an aggregate of 10,000 shares. 

10.  Stock-Based Compensation 

On August 5, 2003, the Company established a stock option plan (the “Plan”). Under the Plan, the 
Company grants stock options to key employees, directors and consultants of the Company. For all 
grants  prior  to  September  12,  2005  and  grants  to  employees  of  the  Company  after  September  12, 
2005, the vesting period is 30% on the first anniversary of the grant date, an additional 30% on the 
second anniversary and the remaining 40% on the third anniversary. Options expire between 5 and 
10 years from the date of grant. 

For grants to non-employee directors and consultants of the Company after September 12, 2005, the 
vesting  period  is  between  1  to  3  years,  subject  to  the  fulfillment  of  certain  conditions  in  the 
individual stock option grant agreements, or 100% upon the occurrence of certain events specified in 
the  individual  stock  option  grant  agreements.  Options  authorized  for  issuance  under  the  Plan  total 
17,000,000 after giving effect to an amendment to the Plan approved at the Annual Meeting of the 
Stockholders of the Company on June 2, 2006 and at December 31, 2008, 8,912,500 options were 
available for issuance. 

Prior  to  adoption  of  the  plan,  the  Company  made  restricted  stock  grants.  During  2003  all  existing 
restricted stock grants were converted to stock options. The converted options maintained the same 
full vesting period as the original restricted stock grants. 

F-19 

 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

Accounting for Employee Awards 

Effective  January  1,  2006,  the  plan  is  accounted  for  in  accordance  with  the  recognition  and 
measurement provisions of FAS No. 123R, which replaces FAS No. 123 and supersedes APB No. 25, 
and related interpretations. 

The Company's results of operations for the year ended December 31, 2008 and 2007 include share-
based employee compensation expense totaling $253,198 and $596,097, respectively. Such amounts 
have been included in the Statements of Operations in general and administrative and research and 
development expenses. No income tax benefit has been recognized in the Statements of Operations 
for  share-based  compensation  arrangements  as  the  Company  has  provided  for  a  100%  valuation 
allowance  on  its  deferred  tax  assets.    Employee  stock  option  compensation  expense  in  2008  is  the 
estimated fair value of options granted amortized on a straight-line basis over the requisite service 
period for the entire portion of the award.  

Accounting for Non-Employee Awards 

The  Company  previously  accounted  for  options  granted  to  its  non-employee  consultants  and  non-
employee registered representatives using the fair value cost in accordance with FAS No. 123 and 
EITF  96-18.  The  adoption  of  FAS  No.  123R  and  SAB  No.  107,  as  of  January  1,  2006,  had  no 
material impact on the accounting for non-employee awards. The Company continues to consider the 
additional guidance set forth in EITF Issue No. 96-18. 

Stock compensation expenses related to non-employee options were $231,487 and $525,549 for the 
year  ended  December  31,  2008  and  2007,  respectively.  Such  amounts  have  been  included  in  the 
Statements of Operations in general and administrative and research and development expenses. 

Total stock-based compensation recognized by the Company in the years ended December 31, 2008 
and  2007,  and  the  period  from  inception  (March  19,  2001)  to  December  31,  2008,  all  of  which 
relates to stock options and warrants, is as follows: 

F-20 

 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

Statement of Operations line 
item:  General and 
administrative 
Payroll 
Consulting and other 
professional fees 
Research and development: 

Payroll 
Consulting and other 
professional fees 

Years ended 

December 31, 
2008 

December 31, 
2007 

Inception 
(March 19, 2001) to 
December 31, 2008 

  $ 

60,350   $ 

408,731 

$ 

1,157,078

136,918  

178,167 

192,848  

187,366 

734,020

677,218

94,568  

347,382 

1,288,518

Total 

  $ 

484,684   $  1,121,646 

$ 

3,856,834

During  the  year  ended  December  31,  2008  and  2007,  2,005,000  and  525,000  stock  options  were 
granted with fair values of $1,485,885 and $2,335,325 respectively.  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  FAS  No.  123(R)  and  SAB  No.  107  when  reviewing  and  updating 
assumptions. The expected volatility is based upon historical volatility of the Company's stock. The 
expected term is based upon the simplified method as allowed under SAB 110. 

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

Black-Scholes weighted average assumptions 

Expected dividend yield 
Expected volatility   
Risk free interest rate 
Expected term (in years) 

Year Ended December 31, 

2008 

2007 

0% 
104 - 114% 
1.55 - 2.98% 
0.25 - 5 years 

0% 
100% 
2.76 - 4.99% 
0.05 - 5 years 

F-21 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

The following table summarizes the employee and non-employee share-based transactions: 

2008 

2007 

Shares 
subject to 
Options 

Weighted 
Avg. 
Option 
Prices 

Shares 
Subject to 
Options 

Weighted 
Avg. 
Option Prices

6,045,795 
2,005,000 
(90,000) 
(200,000) 
7,760,795 
5,366,795 

$ 

$ 
$ 

0.97 
1.13 
0.35 
1.33 
1.01 
0.92 

6,123,295 
525,000 
(127,500) 
(475,000) 
6,045,795 
3,877,795 

$ 

$ 
$ 

0.94 
1.48 
0.47 
1.29 
0.97 
0.87 

6.9 
6.7 

6.9 
6.7 

Outstanding at January 1 
Granted 
Exercised 
Cancelled 
Outstanding at December 31 
Exercisable at December 31 
Weighted Average 
Remaining Contractual 
Terms (Years) 
Outstanding 
Exercisable 

The  intrinsic  value  of  the  options  outstanding  and  exercisable  was  $987,817  and  $849,767, 
respectively, at December 31, 2008.  The intrinsic value of the options outstanding and exercisable 
was $8,029,932 and $5,521,496, respectively, at December 31, 2007. 

As  of  December  31,  2008  and  2007,  there  was  $2,411,468  and  $1,410,269  of  total  unrecognized 
compensation cost, respectively, and 2,394,000 and 2,168,000 unvested stock options, respectively, 
which is expected to be recognized over a weighted average vesting period of 1.2 years and 1.8 years, 
respectively. 

Warrants and Options 

As  at  December  31,  2008,  warrants  to  purchase  1,207,148  shares  were  outstanding,  having  an 
exercise price of $1.80 per share with an average remaining contractual life of 2 years. 

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

2008 

2007 

Number of 
warrants 
  1,078,576 
128,572 
   - 

Weighted average 
exercise price 
$  1.80 
$  1.80 
- 
$ 

Number of 
warrants 
- 
  1,078,576 
   - 

Weighted average 
exercise price 
$ 
- 
$  1.80 
- 
$ 

Balance, December 31,  

 1,207,148 

$  1.80 

 1,078,576 

$  1.80 

As at December 31, 2008 the range of exercise prices of the outstanding warrants and options were 
as follows: 

F-22 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

Range of exercise prices 

$1.80 

Number of 
warrants 
1,207,148 

Average remaining 
contractual life 
2 years 

Weighted 
average exercise 
price 
$1.80 

Warrants were valued using the Black-Scholes model, using the weighted average key assumptions 
of volatility of 100%, a risk-free interest rate of 1.80% - 3.2%, a term equivalent to the life of the 
warrant, and reinvestment of all dividends in the Company of zero percent. 

11.  Income Taxes 

No  provision  for  Federal  income  taxes  was  required  for  the  years  ended  December  31,  2008  and 
2007, due to the Company’s operating losses.  At December 31, 2008 and 2007, the Company has 
unused  net  operating  loss  carry-forwards  of  approximately  $  29,906,000  and  $24,994,000  which 
expire  at  various  dates  through  2028.    Most  of  this  amount  is  subject  to  annual  limitations  under 
certain provisions of the Internal Revenue Code related to “changes in ownership”.   

Income tax benefit differs from the amount computed by applying the federal statutory income tax 
rate of 35% to loss before income taxes due to the valuation allowance.   

As  of  December  31,  2008  and  2007,  the  deferred  tax  assets  related  to  the  aforementioned  carry-
forwards have been fully offset by valuation allowances, since significant utilization of such amounts 
is not presently expected in the foreseeable future.   

Deferred tax assets and valuation allowances consist of: 

Net operating loss carry-forwards 
Valuation allowance 

2008 
$  11,364,336 
(11,364,336)

2007 
$    9,554,013 

(9,554,013)  

Net deferred tax assets 

$     

 $ 

- 

We file income tax returns in the U.S. federal and Maryland state jurisdictions.  Tax years for fiscal 
2005 through 2007 are open and potentially subject to examination by the federal and Maryland state 
taxing authorities.   

12.  Commitments and Contingencies 

a)  The  Company  has  contracted  with  various  vendors  to  provide  research  and  development 
services.  The  terms  of  these  agreements  usually  require  an  initiation  fee  and  monthly  or 
periodic payments over the terms of the agreement, ranging from 6 months to 24 months. The 
costs to be incurred are estimated and are subject to revision.  

As  of  December  31,  2008  and  2007,  the  total  dollar  amount  of  these  agreements  was 
approximately  $3,125,000  and  $1,972,000  and  the  Company  made  payments  totaling 
$2,475,000 and $1,353,000 under the terms of the agreements. All of these agreements may be 
terminated by either party upon appropriate notice as stipulated in the respective agreements. 

F-23 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

b)  The Company and three of its key executives entered into employment agreements. One of the 
two agreements was renewed on September 12, 2007 and results in an annual commitment of 
$160,000 through September 12, 2009. The second agreement expires on September 12, 2010 
and  results  in  an  annual  commitment  of  $350,000.    The  third  agreement  expires  on  July  13, 
2009 and results in an annual commitment of $200,000. 

c) 

In  April  2004,  the  Company  signed  a  5  year  lease  for  8,030  square  feet  of  office  space  in 
Rockville,  Maryland  from  July  2004  to  June  2009.  The  lease  requires  annual  base  rents  of 
$200,750 subject to annual increases of 3% of the preceding year’s adjusted base rent. Under 
the  leasing  agreement,  the  Company  also  pays  its  allocable  portion  of  real  estate  taxes  and 
common area operating charges.  Rent expense was $222,656 and $216,170, as of December 
31, 2008 and 2007, respectively. 

Minimum future rental payments under this lease as of December 31, 2008 total $112,973 for 
fiscal year 2009. 

d)  Regulation by governmental authorities in the United States and in other countries constitutes a 
significant consideration in our product development, manufacturing and marketing strategies. 
The  Company  expects  that  all  of  drug  candidates  will  require  regulatory  approval  by 
appropriate governmental agencies prior to commercialization and will be subjected to rigorous 
pre-clinical,  clinical,  and  post-approval  testing,  as  well  as  to  other  approval  processes  by  the 
FDA  and  by  similar  health  authorities  in  foreign  countries.  United  States  federal  regulations 
control the ongoing safety, manufacture, storage, labeling, record keeping, and marketing of all 
biopharmaceutical products intended for therapeutic purposes.  

e)  On  August  19,  2008,  the  Company  entered  into  an  agreement  with  KCSA  Strategic 
Communications (“KCSA”) for KCSA to provide investor relations services to the Company. 
Under this agreement, the Company agreed to pay KCSA a monthly fixed retainer amount of 
$7,000 commencing August 19, 2008.  In December 2008, the monthly retainer was reduced to 
$4,000 per month.  In accordance with the agreement, the contract may be terminated by either 
party upon thirty (30) days prior written notice to the other party. 

13.  Fair Value Measurements 

The Company adopted Statement of Financial Accounting Standards (“FAS”) No.157, “Fair Value 
Measurements”  (“FAS  157”)  as  of  January 1,  2008.  FAS  157  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.  FAS  157  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 is accessible by the Company; 

F-24 

 
 
 
 
 
 
 
 
REXAHN PHARMACEUTICALS, INC. 
(A Development Stage Company) 
Notes to the Financial Statements 
December 31, 2008 and 2007 

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 Company determines fair values for its investment assets as follows:  

Investments,  at  fair  value—The  Company  investments,  at  fair  value,  consists  of  marketable  debt 
securities which are valued at market and classified within level 2 of the fair value hierarchy. 

The following tables present our assets and liabilities that are measured at fair value on a recurring 
basis  and  are  categorized  using  the  fair  value  hierarchy.  The  fair  value  hierarchy  has  three  levels 
based on the reliability of the inputs used to determine fair value. 

Assets: 
State Authority Auction 
Rate Bonds 

Total 

  $  2,999,750 

Total Assets 

  $  2,999,750 

  $ 

14.  Comparative Information 

Fair Value Measurements as of December 31, 2008 
Level 2 

Level 1 

Level 3 

-  

- 

  $  2,999,750 

   $  2,999,750 

   $ 

-  

- 

Certain amounts for the year-ended December 31, 2007 have been reclassified to conform with the 
current year’s financial statement presentation. 

F-25 

 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
Number 

EXHIBIT INDEX 

Exhibit Description 

3.1.  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. 

3.2.  Amended  and  Restated  Bylaws,  filed  as  Appendix H  to  the  Company's  Definitive  Proxy 
Statement on Schedule 14A (File No. 000-50590) dated April 29, 2005, is incorporated herein 
by reference. 

4.1.  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. 

*10.1.1.  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. 

*10.1.2.  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. 

*10.1.3.  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. 

10.5. 

10.4. 

*10.3. 

*10.2.  Employment Agreement, dated September 12, 2005, by and between Rexahn Pharmaceuticals, 
Inc.  and  C.  H.  Ahn,  filed  as  Exhibit 10.1  to  the  Company's  Current  Report  on  Form 8-KSB 
filed on September 12, 2005, is incorporated herein by reference. 
Employment Agreement, effective September 12, 2007, by and between Rexahn 
Pharmaceuticals, Inc. and T. H. Jeong, filed as Exhibit 10 to the Company's Current Report on 
Form 8-KSB filed on October 9, 2007 is incorporated herein by reference. 
Research Collaboration Agreement dated February 6, 2003 by and between Rexahn 
Pharmaceuticals, Inc. and Rexgene Biotech Co., Ltd., filed as Exhibit 10.5 to the Company’s 
Annual Report on Form 10-KSB for the fiscal year ended December 31, 2005, is incorporated 
herein by reference. 
Revaax License Agreement, dated February 8, 2005, by and between Rexahn Pharmaceuticals, 
Inc. and Revaax Pharmaceuticals LLC, filed as Exhibit 10.6 to the Company’s Annual Report on 
Form 10-KSB for the fiscal year ended December 31, 2005, is incorporated herein by reference. 
Lease Agreement, dated April 26, 2004, by and between Red Gate III LLC and Rexahn 
Corporation, filed as Exhibit 10.3 to the Company’s Annual Report on Form 10-KSB for the 
fiscal year ended December 31, 2007, is incorporated herein by reference.. 
Securities Purchase Agreement, dated as of November 19, 2007, by and between Rexahn 
Pharmaceuticals, Inc. and KT&G Corporation, filed as Exhibit 10.1 to the Company’s Current 
Report on Form 8-K filed on November 21, 2007, is incorporated herein by reference. 
Securities Purchase Agreement, dated as of November 20, 2007, by and between Rexahn 
Pharmaceuticals, Inc. and Rexgene Biotech Co., Ltd, filed as Exhibit 10.4 to the Company’s 
Current Report on Form 8-K filed on November 21, 2007, is incorporated herein by reference. 
Securities Purchase Agreement, dated as of December 17, 2007, by and between Rexahn 
Pharmaceuticals, Inc. and Jungwoo Family Co., Ltd, filed as Exhibit 10.1 to the Company’s 
Current Report on Form 8-K filed on December 18, 2007, is incorporated herein by reference. 
Securities Purchase Agreement, dated as of December 17, 2007, by and between Rexahn 

10.6 

10.7 

10.8 

  10.9 

 10.10 

 
 
 
 
 
 
 
Exhibit 
Number 

Exhibit Description 

10.11 

 10.12 

 10.13 

 10.14 

10.15 

10.16 

10.17 

10.18 

*10.19 

*10.20 

14 
23.1 
23.2 
24. 
31.1. 

31.2. 

Pharmaceuticals, Inc. and Kumho Investment Bank, filed as Exhibit 10.2 to the Company’s 
Current Report on Form 8-K filed on December 18, 2007, is incorporated herein by reference. 
Securities Purchase Agreement, dated as of December 17, 2007, by and between Rexahn 
Pharmaceuticals, Inc. and the several parties thereto, filed as Exhibit 10.3 to the Company’s 
Current Report on Form 8-K filed on December 18, 2007, is incorporated herein by reference. 
Warrant, dated December 24, 2007, issued to KT&G Corporation, filed as Exhibit 10.6 to the 
Company’s Current Report on Form 8-K filed on December 26, 2007, is incorporated herein by 
reference. 
Warrant, dated December 24, 2007, issued to Rexgene Biotech Co., Ltd., filed as Exhibit 10.7 
to the Company’s Current Report on Form 8-K filed on December 26, 2007, is incorporated 
herein by reference. 
Form of Warrant, dated December 24, 2007, issued to the purchasers pursuant to the Jungwoo 
Securities Purchase Agreement, the Kumho Securities Purchase Agreement, the Individual 
Investor Securities Purchase Agreement and to a consultant, filed as Exhibit 10.4 to the 
Company’s Current Report on Form 8-K filed on December 18, 2007, is incorporated herein by 
reference.  
Registration Rights Agreement, dated as of December 24, 2007, by and among Rexahn 
Pharmaceuticals, Inc. and the purchasers pursuant to the KT&G Securities Purchase 
Agreement, the Rexgene Securities Purchase Agreement, the Jungwoo Securities Purchase 
Agreement, the Kumho Securities Purchase Agreement, the Individual Investor Securities 
Purchase Agreement and a consulting Services Agreement, filed as Exhibit 10.9 to the 
Company Current Report on Form 8-K filed on December 26, 2007, is incorporated herein by 
reference. 
Securities Purchase Agreement, dated as of March 20, 2008, by and between Rexahn 
Pharmaceuticals, Inc. and Jungwoo Family Co., Ltd. (the "Jungwoo Securities Purchase 
Agreement”), filed as Exhibit 10.1 to the Company's current report on Form 8-K filed on 
March 26, 2008, is incorporated herein by reference. 
Securities Purchase Agreement, dated as of March 20, 2008, by and between Rexahn 
Pharmaceuticals, Inc. and Super Bio Co. Ltd., (the "Super Bio Securities Purchase 
Agreement"), filed as Exhibit 10.2 to the Company's current report on Form 8-K filed on 
March 26, 2008, is incorporated herein by reference. 
Form of Warrant for issuance pursuant to the Jungwoo Securities Purchase Agreement and the 
Super Bio Securities Purchase Agreement, filed as Exhibit 10.3 to the Company's current 
report on Form 8-K filed on March 26, 2008, is incorporated herein by reference. 
Employment Agreement, dated July 14, 2008, by and between Rexahn Pharmaceuticals, Inc. 
and Rakesh Soni, filed as Exhibit 10.1 to the Company's Current Report on Form 8-K filed on 
July 16, 2008, is incorporated herein by reference. 
Consulting Agreement, dated August 12, 2008, by and between Rexahn Pharmaceuticals, Inc. 
and Y. Michelle Kang, filed as Exhibit 10.1 to the Company's Current Report on Form 8-K 
filed on August 27, 2008, is incorporated herein by reference. 
Code of Ethics and Business Conduct. 
Consent of Parente Randolph, LLC, independent registered public accounting firm. 
Consent of Lazar Levine & Felix LLP, independent registered public accounting firm. 
Power of Attorney. 
Certification of Chief Executive Officer of Periodic Report Pursuant to Pursuant to Rule 13a-
15(e) or Rule 15d-15(e).  
Certification of Chief Financial Officer of Periodic Report Pursuant to Pursuant to Rule 13a-
15(e) or Rule 15d-15(e). 

 
 
 
 
 
Exhibit 
Number 
32.1 

Exhibit Description 

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.

32.2 
_______________________ 
* Management contract or compensation plan or arrangement.   

 
 
 
 
 
Exhibit 23.1 

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 

We  consent  to  the  incorporation  by  reference  in  the  Registration  Statement  of  Rexahn 
Pharmaceuticals,  Inc.  on  Form S-8  (Registration  Statement No.  333-129294)  of  our  report  dated  March 
10, 2009 (which report expresses an unqualified opinion), relating to the financial statements of Rexahn 
Pharmaceuticals,  Inc.,  and  our  report  dated  March  10,  2009  relating  to  internal  control  over  financial 
reporting  included  in  this  Annual  Report  on  Form 10-K  of  Rexahn  Pharmaceuticals,  Inc.  for  the  year 
ended December 31, 2008. 

/s/ Parente Randolph, LLC 
New York, New York 
March 13, 2009 

  
 
 
 
 
 
Exhibit 23.2 

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 

We  consent  to  the  incorporation  by  reference  in  the  Registration  Statement  of  Rexahn 
Pharmaceuticals,  Inc.  on  Form S-8  (Registration  Statement No.  333-129294)  of  our  report  dated  March 
24, 2008 (which report expresses an unqualified opinion), relating to the financial statements of Rexahn 
Pharmaceuticals, Inc. included in this Annual Report on Form 10-K of Rexahn Pharmaceuticals, Inc. for 
the year ended December 31, 2008. 

/s/ Lazar, Levine & Felix, LLP 
New York, New York 
March 13, 2009 

 
 
 
 
 
 
 
 
Exhibit 24 

POWER OF ATTORNEY 

KNOW  ALL  PERSONS  BY  THESE  PRESENTS,  that  each  person  whose  signature  appears 
below constitutes and appoints Tae Heum Jeong, a true  and lawful attorney-in-fact and agent, with full 
power to him (including the full power of substitution and resubstitution), to sign for him or her and in his 
or her name, place and stead, in the capacity or capacities set forth below, (1) the Annual Report on Form 
10-K  for  the  fiscal  year  ended  December  31,  2008  to  be  filed  by  Rexahn  Pharmaceuticals,  Inc.  (the 
"Company") with the Securities and Exchange Commission (the "Commission") pursuant to Section 13 of 
the  Securities  Exchange  Act  of  1934,  as  amended,  and  (2)  any  amendments  to  the  foregoing  Annual 
Report, and to file the same, with all exhibits thereto and other documents in connection therewith, with 
the Commission, granting unto said attorney-in-fact and agent, full power and authority to do and perform 
each and every act and thing requisite and necessary to be done in connection therewith, as fully to all 
intents and purposes as he or she  might or could do in person, hereby ratifying and confirming all that 
said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done 
by virtue hereof. 

Signature 

Title 

Date 

         /s/ Chang H. Ahn               
Chang H. Ahn 
      /s/ Tae Heum Jeong          
Tae Heum Jeong 
         /s/ Freddie Ann Hoffman           
Freddie Ann Hoffman 
         /s/David McIntosh             
David McIntosh 
         /s/ Charles Beever               
Charles Beever 
     /s/ Kwang Soo Cheong         
Kwang Soo Cheong 
/s/ Y. Michele Kang 
Y. Michele Kang 

Chairman and Chief Executive Officer 

March 16, 2009

Chief Financial Officer, Secretary and 
Director 
Director 

Director 

Director 

Director 

Director 

March 16, 2009

March 16, 2009

March 16, 2009

March 16, 2009

March 16, 2009

March 16, 2009

  
 
 
 
CERTIFICATION 

Exhibit 31.1 

I, Chang H. Ahn, Chief Executive Officer of Rexahn Pharmaceuticals, Inc. certify that: 

1.  I have reviewed this Annual Report on Form 10-K for the fiscal year ended December 31, 2008 of 

Rexahn Pharmaceuticals, Inc.; 

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

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

4.  The registrant’s other certifying officer and I are responsible for establishing and maintaining 

disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and 
internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) 
for the registrant and have: 

   a.    Designed such disclosure controls and procedures, or caused such disclosure controls and 

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

   b.    Designed such internal control over financial reporting, or caused such internal control over 

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

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

   d.    Disclosed in this report any change in the registrant’s internal control over financial reporting that 
occurred during the registrant’s fourth fiscal quarter that has materially affected, or is reasonably 
likely to materially affect, the registrant’s internal control over financial reporting; and 

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

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

   b.    Any fraud, whether or not material, that involves management or other employees who have a 

significant role in the registrant’s internal control over financial reporting. 

 
 
  
 
 
     
     
     
 
  
 
  
  
 
  
  
 
  
 
 
  
 
  
 
Dated:  March 16, 2009 

/s/ Chang H. Ahn 
Chang H. Ahn 
Chief Executive Officer

 
 
  
 
 
CERTIFICATION 

Exhibit 31.2 

I, Tae Heum Jeong, Chief Financial Officer of Rexahn Pharmaceuticals, Inc. certify that: 

1.  I have reviewed this Annual Report on Form 10-K for the fiscal year ended December 31, 2008 of 

Rexahn Pharmaceuticals, Inc.; 

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

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

4.  The registrant’s other certifying officer and I are responsible for establishing and maintaining 

disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and 
internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) 
for the registrant and have: 

   a.    Designed such disclosure controls and procedures, or caused such disclosure controls and 

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

   b.    Designed such internal control over financial reporting, or caused such internal control over 

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

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

   d.    Disclosed in this report any change in the registrant’s internal control over financial reporting that 
occurred during the registrant’s fourth fiscal quarter that has materially affected, or is reasonably 
likely to materially affect, the registrant’s internal control over financial reporting; and 

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

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

   b.    Any fraud, whether or not material, that involves management or other employees who have a 

significant role in the registrant’s internal control over financial reporting. 

 
 
  
 
 
     
     
     
 
  
 
  
  
 
  
  
 
  
 
 
  
 
  
 
Dated:  March 16, 2009 

/s/ Tae Heum Jeong 
Tae Heum Jeong 
Chief Financial Officer

 
 
  
 
Exhibit 32.1 

CERTIFICATION OF 
CHIEF EXECUTIVE OFFICER 
PURSUANT TO 
18 U.S.C. SECTION 1350 

SECTION 1350 CERTIFICATION* 

 In connection with the Annual Report of Rexahn Pharmaceuticals, Inc. (the “Company”) on Form 10-K 
for the fiscal year ended December 31, 2008 as filed with the Securities and Exchange Commission on the 
date hereof (the “Report”), I, Chang H. Ahn, Chief Executive Officer of the Company, certify, pursuant to 
18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my 
knowledge: 

   (1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange 

Act of 1934; and 

   (2) The information contained in the Report fairly presents, in all material respects, the financial 

condition and result of operations of the Company. 

Dated: March 16, 2009  

By:  /s/ Chang H. Ahn 

Chang H. Ahn,  
Chief Executive Officer  

*  This Certification is being furnished as required by Rule 13a-14(b) under the Securities Exchange Act 
of 1934 (the “Exchange Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code, 
and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to 
the liability of that section. This Certification shall not be deemed to be incorporated by reference into 
any filing under the Securities Act of 1933 or the Exchange Act, except as otherwise stated in such 
filing. 

    A signed original of this written statement required by 18 U.S.C. § 1350 has been provided to the 
Company and will be retained by the Company and furnished to the Securities and Exchange 
Commission or its staff upon request. 

 
 
  
 
 
 
    
  
  
  
   
  
  
  
  
  
  
  
  
  
  
  
  
  
     
  
Exhibit 32.2 

CERTIFICATION OF 
CHIEF FINANCIAL OFFICER 
PURSUANT TO 
18 U.S.C. SECTION 1350 

SECTION 1350 CERTIFICATION* 

 In connection with the Annual Report of Rexahn Pharmaceuticals, Inc. (the “Company”) on Form 10-K 
for the fiscal year ended December 31, 2008 as filed with the Securities and Exchange Commission on the 
date hereof (the “Report”), I, Tae Heum Jeong, Chief Financial Officer of the Company, certify, pursuant 
to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of 
my knowledge: 

   (1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange 

Act of 1934; and 

   (2) The information contained in the Report fairly presents, in all material respects, the financial 

condition and result of operations of the Company. 

Dated: March 16, 2009  

By:  /s/ Tae Heum Jeong 

Tae Heum Jeong,  
Chief Financial Officer  

*  This Certification is being furnished as required by Rule 13a-14(b) under the Securities Exchange Act 
of 1934 (the “Exchange Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code, 
and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to 
the liability of that section. This Certification shall not be deemed to be incorporated by reference into 
any filing under the Securities Act of 1933 or the Exchange Act, except as otherwise stated in such 
filing. 

    A signed original of this written statement required by 18 U.S.C. § 1350 has been provided to the 
Company and will be retained by the Company and furnished to the Securities and Exchange 
Commission or its staff upon request. 

 
  
 
 
 
    
  
  
  
   
  
  
  
  
  
  
  
  
  
  
  
  
  
     
 
 
                                                 
 
Rexahn Pharmaceuticals 

(cid:190) Corporate Information: 

SECURITIES INFORMATION: 

CORPORATE COUNSEL: 

EXCHANGE: NYSE AMEX 
TICKER: RNN 

Chadbourne & Parke LLP 
1200 New Hampshire Avenue, N.W. 
Washington, DC 20036 

EXECUTIVE OFFICERS 

Chang H. Ahn, Ph.D., Chairman 
and Chief Executive Officer 

Rick Soni, M.B.A., Chief Business 
Officer 

Tae Heum (Ted) Jeong, M.S.F, Chief 
Financial Officer 

BOARD OF DIRECTORS 

Chang H. Ahn, Chairman 

Charles G. Beever, Director 

Kwang Soo Cheong, Director 

Freddie Ann Hoffman, Director  

Tae Heum (Ted) Jeong, Director 

Y. Michele Kang, Director  

David M. McIntosh, Director 

PUBLIC ACCOUNTING FIRM:  

Parente Randolph, LLC 
65 Madison Avenue, Suite 300
PO Box 2138
Morristown, NJ 07962-2138

CORPORATE HEADQUARTERS: 

9620 Medical Center Drive 
Rockville, MD 20850 
(240) 268-5300 

WEBSITE: 

www.rexahn.com 

INVESTOR RELATIONS CONTACT: 

KCSA Strategic Communications 
Jeffrey Goldberger / Yemi Rose 
212-896-1249 / 212-896-1233 
jgoldberger@kcsa.com / 
yrose@kcsa.com

PUBLIC RELATIONS CONTACT: 

Base Pair Communications 
Constantine Theodoropulos 
617-292-7319 
constantine@basepaircomm.com

PLEASE CONTACT KCSA FOR 
INVESTOR RELATIONS INQUIRIES OR TO 
REQUEST ADDITIONAL COPIES OF THIS 
ANNUAL REPORT.