Quarterlytics / Healthcare / Biotechnology / Corbus Pharmaceuticals Holdings, Inc.

Corbus Pharmaceuticals Holdings, Inc.

crbp · NASDAQ Healthcare
Claim this profile
Ticker crbp
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Employees 28
← All annual reports
FY2017 Annual Report · Corbus Pharmaceuticals Holdings, Inc.
Sign in to download
Loading PDF…
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 10-K

[X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE FISCAL YEAR ENDED DECEMBER 31, 2017

[  ] 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: 001-37348

Corbus Pharmaceuticals Holdings, Inc.
(Exact name of registrant as specified in its charter)

Delaware
(State or other jurisdiction of
incorporation or organization)

500 River Ridge Drive
Norwood, Massachusetts
(Address of principal executive offices)

46-4348039
(I.R.S. Employer
Identification No.)

02062
(Zip Code)

(617) 963-0100
Registrant’s telephone number, including area code:
Securities registered pursuant to Section 12(b) of the Act:

Title of each class
Common Stock, par value $0.0001 per share

Name of each exchange on which registered
NASDAQ Global Market

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

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

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

[X]

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

Indicate  by  check  mark  whether  the  registrant  has  submitted  electronically  and  posted  on  its  corporate  Web  site,  if  any,  every
Interactive  Data  File  required  to  be  submitted  and  posted  pursuant  to  Rule  405  of  Regulation  S-T  (§232.405  of  this  chapter)  during  the
preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes [X] No [  ]

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

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

Large accelerated filer [  ]
Non-accelerated filer [  ]

(Do not check if a smaller reporting company)

Accelerated filer [X]
Smaller reporting company [  ]

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Emerging growth company [X]

If  an  emerging  growth  company,  indicate  by  check  mark  if  the  registrant  has  elected  not  to  use  the  extended  transition  period  for

complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. [X]

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

As  of  June  30,  2017,  the  last  business  day  of  the  registrant’s  most  recently  completed  second  fiscal  quarter,  the  aggregate  market
value  of  the  common  stock  held  by  non-affiliates  of  the  registrant  was  approximately  $294,882,116,  based  on  the  closing  price  of  the
registrant’s common stock on June 30, 2017.

As  of  March  6,  2018,  the  number  of  shares  outstanding  of  the  registrant’s  common  stock,  $0.0001  par  value  per  share,  was

57,134,677.

Portions  of  the  registrant’s  proxy  statement  for  the  2018  annual  meeting  of  stockholders  to  be  filed  pursuant  to  Regulation  14A

within 120 days after the registrant’s fiscal year ended December 31, 2017, are incorporated by reference in Part III of this Form 10-K.

Documents incorporated by reference

 
 
 
 
 
 
 
 
 
 
 
 
CORBUS PHARMACEUTICALS HOLDINGS, INC.
ANNUAL REPORT ON FORM 10-K
FOR THE YEAR ENDED DECEMBER 31, 2017
TABLE OF CONTENTS

ITEM  

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

PART I

PART II

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

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

PART III

Exhibits, Financial Statement Schedules
Form 10-K Summary

PART IV

1.
1A.
1B.
2.
3.
4.

5.
6.
7.
7A.
8.
9.
9A.
9B.

10.
11.
12.
13.
14.

15.
16.

Page

1
24
45
45
46
46

47
48
49
56
56
56
56
56

57
57
57
57
57

58
60

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

PART I

This report on Form 10-K contains forward-looking statements made pursuant to the safe harbor provisions of the Private Securities
Litigation Reform Act of 1995 under Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange
Act of 1934, as amended. Forward-looking statements include statements with respect to our beliefs, plans, objectives, goals, expectations,
anticipations,  assumptions,  estimates,  intentions  and  future  performance,  and  involve  known  and  unknown  risks,  uncertainties  and  other
factors, which may be beyond our control, and which may cause our actual results, performance or achievements to be materially different
from  future  results,  performance  or  achievements  expressed  or  implied  by  such  forward-looking  statements. All  statements  other  than
statements  of  historical  fact  are  statements  that  could  be  forward-looking  statements.  You  can  identify  these  forward-looking  statements
through our use of words such as “may,” “can,” “anticipate,” “assume,” “should,” “indicate,” “would,” “believe,” “contemplate,” “expect,”
“seek,” “estimate,” “continue,” “plan,” “point to,” “project,” “predict,” “could,” “intend,” “target,” “potential” and other similar words and
expressions of the future.

There are a number of important factors that could cause the actual results to differ materially from those expressed in any forward-

looking statement made by us. These factors include, but are not limited to:

● our lack of operating history;

● our current and future capital requirements and our ability to satisfy our capital needs;

●  our ability to complete required clinical trials of our product and obtain approval from the FDA or other regulatory agents in

different jurisdictions;

●  our ability to maintain or protect the validity of our patents and other intellectual property;

● our ability to retain key executive members;

● our ability to internally develop new inventions and intellectual property;

● 

interpretations of current laws and the passages of future laws;

● acceptance of our business model by investors;

● the accuracy of our estimates regarding expenses and capital requirements; and

● our ability to adequately support growth.

The  foregoing  does  not  represent  an  exhaustive  list  of  matters  that  may  be  covered  by  the  forward-looking  statements  contained
herein  or  risk  factors  that  we  are  faced  with  that  may  cause  our  actual  results  to  differ  from  those  anticipate  in  our  forward-looking
statements. Please see “Risk Factors” for additional risks which could adversely impact our business and financial performance.

All forward-looking statements are expressly qualified in their entirety by this cautionary notice. You are cautioned not to place
undue reliance on any forward-looking statements, which speak only as of the date of this report or the date of the document incorporated
by reference into this report. We have no obligation, and expressly disclaim any obligation, to update, revise or correct any of the forward-
looking statements, whether as a result of new information, future events or otherwise. We have expressed our expectations, beliefs and
projections  in  good  faith  and  we  believe  they  have  a  reasonable  basis.  However,  we  cannot  assure  you  that  our  expectations,  beliefs  or
projections will result or be achieved or accomplished.

Item 1. BUSINESS

This  report  and  the  information  incorporated  herein  by  reference  contain  references  to  trademarks,  service  marks  and  trade  names
owned  by  us  or  other  companies.  Solely  for  convenience,  trademarks,  service  marks  and  trade  names  referred  to  in  this  report  and  the
information  incorporated  herein,  including  logos,  artwork,  and  other  visual  displays,  may  appear  without  the  ®  or  ™  symbols,  but  such
references are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights or the rights
of the applicable licensor to these trademarks, service marks  and  trade  names.  We  do  not  intend  our  use  or  display  of  other  companies’
trade names, service marks or trademarks to imply a relationship with, or endorsement or sponsorship of us by, any other companies. Other
trademarks, trade names and service marks appearing in this report are the property of their respective owners.

1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Overview

We are a Phase 3, clinical stage pharmaceutical company focused on the development and commercialization of novel therapeutics
to treat rare, chronic and serious inflammatory and fibrotic diseases with clear unmet medical needs. Our product, lenabasum, is a novel
synthetic,  oral,  endocannabinoid-mimetic  drug  designed  to  resolve  chronic  inflammation  and  halt  fibrotic  processes  without  causing
immunosuppression. We are currently developing lenabasum to treat four life-threatening diseases: systemic sclerosis (SSc), cystic fibrosis
(CF), dermatomyositis (DM) and systemic lupus erythematosus (SLE).

Lenabasum is a synthetic, rationally-designed, oral small-molecule drug that selectively binds to the cannabinoid receptor type 2,
or  CB2  found  on  activated  immune  cells,  fibroblasts  and  other  cell  types  including  muscle  and  bone  cells.  Lenabasum  stimulates  the
production  of  Specialized  Pro-Resolving  Lipid  Mediators  (SPMs)  that  act  to  resolve  inflammation  and  halt  fibrosis  by  activating
endogenous  pathways.  These  pathways  are  activated  in  healthy  individuals  during  the  course  of  normal  immune  responses  but  are
dysfunctional in patients with chronic inflammatory and fibrotic diseases. By its binding to CB2, lenabasum drives innate immune responses
from the activation phase into the resolution phase. CB2 plays a central role in modulating and resolving inflammation by, in effect, turning
heightened inflammation “off” and restoring homeostasis. This has been demonstrated in animal models lacking CB2 as well as humans
with genetic polymorphism in the CB2 gene, as these exhibit excessive inflammation and fibrosis in response to activators of the innate
immune system.

Lenabasum  has  generated  positive  clinical  data  in  three  consecutive  Phase  2  studies  in  diffuse  cutaneous  SSc,  CF  and  skin-
predominant DM. Lenabasum is currently being evaluated in a Phase 3 SSc study that is expected to enroll 354 patients, a Phase 2b CF
study that is expected to enroll 415 patients (that is being supported by a development award for up to $25 million (the “2018 CFF Award”)
from the Cystic Fibrosis Foundation (“CFF”)), and a Phase 2 SLE study that is expected to enroll 100 patients and is being funded by a
grant through the National Institutes of Health (“NIH”). In DM, the Company plans to consult with the FDA on the protocol design for the
next clinical study, which the Company expects to commence before the end of 2018. Open-label extension studies are ongoing in SSc and
DM following the completion of the Phase 2 studies in these indications.

The U.S. Food and Drug Administration, or the FDA, granted lenabasum Orphan Designation as well as Fast Track Status for both

SSc and CF. The European Medicines Authority, or the EMA, granted lenabasum Orphan Designation for both SSc and CF.

The development status of lenabasum is summarized below:

Figure 1-: Clinical development pipeline

Clinical Development

Systemic Sclerosis (Scleroderma)

On-Going Phase 3 Study

In  December  2017,  we  initiated  a  Phase  3  double-blind  placebo-controlled  multi-center  international  clinical  study  (“RESOLVE-1”)  in
diffuse  cutaneous  SSc  and  the  first  patient  was  dosed  in  January  2018.  The  RESOLVE-1  study  is  expected  to  enroll  approximately  354
subjects at 70 sites in North America, Europe, Israel, Japan, South Korea, and Australia. The planned duration of treatment with study drug
is 52 weeks. Subjects will be randomized 1:1:1 to receive lenabasum 5 mg twice per day, lenabasum 20 mg twice per day, or placebo twice
per day.

2

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The  primary  efficacy  outcome  of  the  RESOLVE-1  study  will  be  change  from  baseline  in  modified  Rodnan  Skin  Score  (“mRSS”),  a
measure  of  skin  fibrosis  and  a  standard  clinical  trial  outcome  in  SSc.  Secondary  outcomes  of  the  RESOLVE-1  study  include  patient
reported  outcome  of  Health  Assessment  Questionnaire-Disability  Index,  the  American  College  of  Rheumatology  Combined  Response
Index in diffuse cutaneous Systemic Sclerosis (“ACR CRISS”) score, a novel composite measure of clinical improvement from baseline
that  incorporates  change  from  baseline  in  mRSS,  and  lung  function  and  forced  vital  capacity,  %  predicted.  These  same  outcomes  were
evaluated in the Phase 2 study as well as the ongoing open-label extension study. The Company expects to complete the study and report
top-line data in the first half of 2020.

Encouraging Data from Open Label Extension Study

Thirty-six subjects with diffuse cutaneous SSc received open-label dosing with lenabasum at 20 mg twice per day following 16
weeks participation in the preceding double-blinded placebo-controlled part of the lenabasum Phase 2 study. Patients had a mean of about
20  weeks  off  treatment  from  the  end  of  lenabasum  dosing  during  the  placebo-controlled  period  before  starting  open-label  dosing.
Lenabasum was administered in addition to standard-of-care treatments for SSc, including concomitant immunosuppressive drugs in 92%
of subjects.

Efficacy Outcomes

The modified Rodnan Skin Score (mRSS), the primary outcome for the Phase 3 study of lenabasum in SSc, improved by a mean (SD) of -
8.4 in the 32 subjects who had completed 28 weeks open-label dosing at the time of data analyses, compared to baseline at the start of the
Phase 2 double-blind placebo-controlled portion of the study. 75% of 36 subjects who received open-label dosing with lenabasum achieved
a degree of improvement in mRSS (reduction ≥ 5 points and > 25% baseline) from the study start that has been previously associated with
improved survival in SSc. A third of subjects reached a mRSS ≤ 10 points and 22% achieved a mRSS score < 5 points.

The ACR  CRISS  score  increased  over  time  with  lenabasum  open-label  dosing  and  reached  a  median  of  71%  at  28  weeks,  with  44%  of
subjects achieving an ACR CRISS score ≥ 70%. For comparison, the median ACR CRISS score was 32% at 48 weeks in the Phase 2 study
of tocilizumab in diffuse cutaneous SSc patients and 24% at 12 months in a study of cyclophosphamide in diffuse cutaneous SSc patients
with interstitial lung disease. Patient-reported disability, function, skin symptoms and global assessment of health all improved from study
start and start of open-label dosing. Forced vital capacity (FVC) % predicted was stable during lenabasum treatment (mean change 0.3%
predicted from study start) in contrast to the natural history of a decline in FVC in the disease.

Figure 2-: mRSS Results from Phase 2 Study-Primary Outcome Measure for Phase 3 RESOLVE -1 Study

Data  are  shown  for  subjects  who  received  lenabasum  during  double-blinded  placebo-controlled  dosing  (N  =  26)  and  during  open-label
dosing (N = 36 at the start of open-label dosing). The data show the change in patient mRSS scores from the study start at the beginning of
the double-blinded placebo-controlled dosing period.

3

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 3-:ACR CRISS Results from Phase 2 Study

Safety

There have been no severe or serious adverse events (AEs) and no clinically significant laboratory abnormalities related to lenabasum in
the Phase 2 study. Thirty (83%) subjects experienced AEs and 3 (8%) subjects experienced AEs related to lenabasum during open-label
dosing. The AEs experienced by ≥ 10% of subjects were upper respiratory tract illness in 7 (19%) subjects and urinary tract infection in 5
(14%) subjects.

Positive Data from Double-blinded Placebo-Controlled Part of Phase 2 Systemic Sclerosis Study

In October 2016, the Company reported positive results from the double-blind, randomized placebo-controlled portion of the Phase 2
study in diffuse cutaneous SSc. This part of the multi-center Phase 2 study evaluated lenabasum’s clinical benefit and safety in 27 subjects
who received lenabasum and 15 who received placebo. Subjects had disease duration up to 6 years and were allowed to receive stable doses
of  immunosuppressive  drugs  during  this  study.  Subjects  were  randomized  in  a  2  to  1  overall  lenabasum  to  placebo  ratio.  Subjects
randomized to lenabasum received 5 mg once a day (n = 9), 20 mg once a day (n = 9), or 20 mg twice a day (n = 9) for the first four weeks,
then all lenabasum subjects received 20 mg twice a day for the next 8 weeks. Subjects randomized to placebo received placebo twice a day
for 12 weeks. All subjects were followed off study drug from weeks 13 through 16.

The primary efficacy objective was to evaluate clinical benefit in all subjects who received lenabasum versus subjects who received
placebo using the ACR CRISS score. Lenabasum out-performed placebo in the ACR CRISS reaching 33% at week 16 (p = 0.044, 1-sided
mixed model repeated measures using rank transformed data) versus 1% for placebo. Lenabasum also outperformed placebo in the mRSS,
the primary outcome for the Phase 3 study, with a mean improvement (reduction) of 4.8 points in mRSS at sixteen weeks.

4

 
 
 
 
 
 
 
 
 
 
 
Figure 4-mRSS Primary Endpoint in Phase 3 RESOLVE-1 Improved from Baseline

Cystic Fibrosis

On-Going Phase 2B Study

In January 2018, the Company initiated a Phase 2b study in cystic fibrosis which is being supported by an award for up to $25
million from the Cystic Fibrosis Foundation. The Phase 2b multicenter, double-blinded, randomized, placebo-controlled study is expected
to  enroll  approximately  415  subjects  with  CF  who  are  at  least  12  years  of  age  and  at  increased  risk  for  pulmonary  exacerbations.  The
primary  outcome  is  the  event  rate  of  pulmonary  exacerbations  which  is  the  average  number  of  pulmonary  exacerbations  per  subject  per
time  period.  Secondary  efficacy  outcomes  include  other  measures  of  pulmonary  exacerbations,  change  in  Cystic  Fibrosis  Questionnaire-
Revised Respiratory domain score and change in forced expiratory volume in 1 second (FEV1), % predicted. The study will be conducted
in  approximately  100  sites  across  North America,  Europe,  Israel  and Australia.  Subjects  will  be  centrally  randomized  to  one  of  three
cohorts to receive lenabasum 20 mg twice per day, lenabasum 5 mg twice per day, or placebo twice per day for 28 weeks, with 4 weeks
follow-up off active treatment. This Phase 2b CF study was designed with input from the Therapeutic Development Network of the Cystic
Fibrosis Foundation and the European Cystic Fibrosis Society Clinical Trials Network. The Company expects to complete this study and
report top line data in the first half of 2020.

Positive Data from Phase 2 Cystic Fibrosis Study

In March 2017, the Company completed a double-blind placebo-controlled Phase 2 study in CF and reported positive results. The
Phase 2 study evaluated multiple doses of lenabasum compared to placebo for the treatment of patients with CF. The 16-week study dosed
85 adult CF patients with baseline (FEV1) percent predicted ≥ 40%, who were enrolled without regard to their specific CFTR mutation or
infecting pathogens and continued with all baseline treatment regimens.

Lenabasum successfully achieved the primary objective of the study by demonstrating an acceptable safety and tolerability profile
at all doses with no serious or severe adverse events related to the study drug. Lenabasum cohorts showed a dose-dependent reduction in a
number  of  acute  pulmonary  exacerbations  defined  as  those  requiring  intravenous  (IV)  antibiotics  compared  to  placebo.  Patients  in  the
highest dose cohort of lenabasum (20 mg orally, twice per day) had a 75% reduction in the annualized rate of pulmonary exacerbations
requiring IV antibiotics compared to placebo cohort. Additionally, lenabasum caused a consistent reduction in multiple inflammatory cell
types in sputum, including total leukocytes, neutrophils, eosinophils, and macrophages. Inflammatory mediators, including interleukin-8,
neutrophil elastase, and immunoglobulin G, were also reduced in sputum by lenabasum in a dose-dependent manner. These patient data
provide evidence of biological activity of lenabasum in resolving ongoing innate immune responses in lungs of CF patients and support the
observed reduction in pulmonary exacerbations.

5

 
 
 
 
 
 
 
 
 
 
 
 
Figure 5-Lenabasum Reduced Pulmonary Exacerbations in Completed Phase 2 Study

Figure 6-Lenabasum Reduced Inflammation in the Sputum in Completed Phase 2 Study

The  Cystic  Fibrosis  Foundation  Therapeutics,  Inc.  (“CFFT”),  the  non-profit  drug  discovery  and  development  affiliate  of  the
Cystic Fibrosis Foundation supported the prior Phase 2 study with a $5 million development award. To date the Company has received two
development awards with total potential payments of up to $30 million from the CFF to support the clinical development of lenabasum in
CF.

Dermatomyositis

Positive Data from Phase 2 Dermatomyositis Study

In October 2017, the Company completed the double-blind placebo-controlled part of the Phase 2 study in skin-predominant DM
and reported positive results. The mean improvement (reduction) in the primary efficacy outcome, the Cutaneous Dermatomyositis Disease
Area and Severity Index (“CDASI”) activity score, an outcome measure of skin disease severity, was 9.3 points for lenabasum treatment
versus a reduction of 3.7 points for placebo treatment (p = 0.04,2-sided MMRM) at sixteen weeks. Lenabasum also outperformed placebo in
multiple  secondary  efficacy  outcomes  studied.  Lenabasum  was  well  tolerated  with  no  severe  or  serious  side  effects  associated  with  the
drug.  No  subjects  dropped  out.  The  dermatomyositis  trial  was  funded  by  a  grant  from  the  National  Institute  of  Arthritis  and
Musculoskeletal and Skin Diseases of the National Institutes of Health to the University of Pennsylvania Perelman School of Medicine.

6

 
 
 
 
 
 
 
 
 
 
 
 
The single center trial enrolled 22 adults at a 1 to 1 ratio of lenabasum to placebo cohorts. At baseline, subjects in each cohort had a mean
CDASI  activity  score  in  the  severe  range  and  skin  symptoms  in  the  extremely  severe  range  despite  background  treatment  with
immunosuppressive drugs in 19 of the 22 subjects. Demographic parameters, CDASI activity scores, patient-reported outcomes, and use of
immunosuppressive  drugs  at  baseline  were  similar  for  lenabasum  and  placebo  cohorts.  Subjects  received  lenabasum  20  mg  QD  through
week 4, then lenabasum 20 mg BID through week 12 with safety and efficacy follow-up thereafter through week 16. All subjects remained
on their background standard-of-care therapy throughout the study. In DM, the Company plans to consult with the FDA on the protocol
design for the next clinical study, which the Company expects to commence before the end of 2018.

Figure 7-Lenabasum Demonstrated Clinically Meaningful Improvement in CDASI

Dermatomyositis Open Label Study

In  November  2016,  the  Company  commenced  open-label  dosing  of  subjects  in  Phase  2  DM  clinical  study.  The  same  safety  and
efficacy endpoints evaluated in the double-blinded, placebo-controlled part of the Phase 2 study are continuing to be assessed throughout
open-label dosing.

Systemic Lupus Erythematosus (SLE)

In December 2017 a Phase 2 clinical study of lenabasum was initiated for the treatment of systemic lupus erythematosus and patient
dosing commenced in February 2018. The Phase 2 SLE clinical trial is being conducted by the Autoimmunity Centers of Excellence (ACE)
program, which is funded by the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health
(NIH).

The randomized, double-blind, placebo-controlled, Phase 2 trial is being conducted at 15 sites in the U.S. and is expected to enroll
100  adult  SLE  patients  with  active  musculoskeletal  disease,  which  is  the  most  common  disease  manifestation  of  SLE.  Subjects  will  be
randomized in a 1:1:1:1 ratio to one of four cohorts to receive placebo or three different doses of lenabasum for 3 months, with 1-month
follow-up.  The  primary  efficacy  outcome  assesses  pain  from  active  musculoskeletal  disease,  and  secondary  efficacy  outcomes  include
other  assessments  of  active  musculoskeletal  disease,  overall  disease  activity  using  SLE  Responder  Index,  SLE  Disease Activity  Index
(“SLEDAI”) and British Isles Lupus Activity Group (“BILAG”) scoring systems, and patient-reported outcomes.

7

 
 
 
 
 
 
 
 
 
 
 
 
 
Lenabasum’s Unique and Novel Mechanism of Action as a Pro-Resolving Drug

Lenabasum is a synthetic, rationally-designed, oral small-molecule drug that selectively binds to the cannabinoid receptor type 2,
or  CB2,  found  on  activated  immune  cells,  fibroblasts  and  other  cell  types  including  muscle  and  bone  cells.  Lenabasum  stimulates  the
production  of  Specialized  Pro-Resolving  Lipid  Mediators  (SPMs)  that  act  to  resolve  inflammation  and  halt  fibrosis  by  activating
endogenous  pathways.  These  pathways  are  activated  in  healthy  individuals  during  the  course  of  normal  immune  responses  but  are
dysfunctional  in  patients  with  chronic  inflammatory  and  fibrotic  diseases.  By  its  binding  to  the  CB2  receptor,  lenabasum  drives  innate
immune  responses  from  the  activation  phase  through  completion  of  the  resolution  phase.  The  CB2  receptor  plays  a  central  role  in
modulating  and  resolving  inflammation  by,  in  effect,  turning  heightened  inflammation  “off”  and  restoring  homeostasis.  This  has  been
demonstrated in animal models lacking CB2 as well as humans suffering from polymorphism in the CB2 gene, as these exhibit abnormal
immune responses and a propensity for chronic inflammation.

A key aspect of the body’s innate immune response is its activation phase when inflammatory cells are recruited to the site of tissue
infection/injury whereupon these cells act to destroy the infection and/or repair tissue damage. The next phase in a normal innate immune
response is its resolution phase, during which the nature of the infiltrating immune cells changes from pro-inflammatory to pro-resolving,
the infectious pathogens are eliminated, residual cellular debris and immune cells are cleared from the tissue, and tissue repair processes are
eventually halted when they are no longer needed. In chronic inflammatory and fibrotic diseases, the innate immune responses are “stuck”
in the initial activation phase. This failure to progress through the resolution phase causes chronic tissue infiltration with inflammatory cells
and chronic activation of healing processes that cause tissue scarring, or fibrosis. The key event that propels an innate immune response
from  its  activation  phase  to  its  resolution  phase  is  a  “class  switch”  from  production  of  pro-inflammatory  lipid  mediators  such  as
prostaglandins and leukotrienes to a family of SPMs (Figure 8) which include lipoxins, resolvins, protectins, and marescins. If an innate
immune response persists in the activation phase and does not progress through resolution, chronic inflammation and fibrosis can result,
causing  organ  dysfunction,  organ  failure,  severe  morbidity  and  even  death.  There  are  hundreds  of  life-long  chronic  and  incurable
inflammatory diseases.

Figure 8-Lenabasum’s Mechanism of Action

Lenabasum is designed to restore immune system homeostasis, by harnessing the body’s own physiologic pathways to transition the
innate immune response from the activation phase to the resolution phase. If the innate immune response is “stuck” in the activation phase,
tissue damage, fibrosis and persistent infection are expected consequences. Endogenous progression of the innate immune response through
its resolution phase has been shown to clear inflammation, stop fibrosis, and promote pathogen clearance. Lenabasum’s unique mechanism
of  action  is  different  than  anti-inflammatory  drugs  that  inhibit  the  production  or  functions  of  distinct  pro-inflammatory  mediators  that
initiate or are active during the activation phase. Activation of an innate immune response is necessary to clear infections, however drugs
that  interfere  with  the  activation  phase  carry  the  risk  of  immunosuppression  and  may  have  other  undesirable  side  effects.  In  contrast,
lenabasum  is  designed  to  transition  an  innate  immune  response  from  its  activation  phase  to  resolution  phase.  Lenabasum’s  CB2  agonist
activity initiates a class switch in bioactive lipid mediators from inflammation-activating mediators to pro-resolving mediators. Lenabasum
acts to impact and activate multiple pathways including:

8

 
 
 
 
 
 
 
 
 
 
● 

● 

● 

● 

Increase in production of SPMs and anti-inflammatory eicosanoids, with a concomitant decrease in production of pro-inflammatory
eicosanoids.

Increase in production of anti-inflammatory cytokines, coupled with a decrease in production of pro-inflammatory cytokines and
pro-fibrotic growth factors.

Increase in  influx  of  non-inflammatory  macrophages  with  a  decrease  in  influx  and  accumulation  of  inflammatory  cells  and  pro-
fibrotic myofibroblasts.

Increase in bacterial clearance. SPMs stimulate production of bactericidal peptides, enhance phagocytosis and killing of bacteria by
neutrophils and macrophages.

● 

Increase in apoptosis of inflammatory cells, including neutrophil and pro-fibrotic cells, including fibroblasts.

● Increase in clearance of apoptotic cells and cellular debris by non-inflammatory macrophages.

Effect of Lenabasum in a Human Model of Inflammatory Resolution

Dr.  Derek  Gilroy,  Professor  of  Experimental  Inflammation  and  Pharmacology  at  University  College  of  London  evaluated  the  effects  of
lenabasum in a clinical research model of inflammation and its resolution in healthy volunteers. In this model, inflammation was triggered
in healthy individuals by the subcutaneous injection of heat-killed E. coli. Blood flow to the site of inflammation was measured with laser
Doppler techniques. Suction blisters were generated over the site of inflammation, and cells and inflammatory mediators were measured in
the blister fluid at different times after the injection of E. coli. In this study twenty two subjects received either lenabasum at 5 mg or 20 mg
twice a day or placebo prior to the procedure.

The  data  demonstrated  that  both  doses  of  lenabasum  exerted  potent  anti-inflammatory  effects  by  inhibiting  neutrophil  infiltration,  and
increased the clearance of bacteria as measured by local endotoxin levels, both key determinants of inflammation. Controlling neutrophils is
considered highly important for treating many diseases driven by chronic inflammation. In addition to inhibiting neutrophil accumulation,
lenabasum  also  enhanced  clearance  of  the  injected  bacteria.  The  data  were  published  in  January  2018  in  the  peer-reviewed  “Clinical
Pharmacology & Therapeutics” journal in a paper entitled: “Potent anti-inflammatory and pro-resolving effects of lenabasum in a human
model of self-resolving acute inflammation.” The findings in this paper provide additional evidence for lenabasum’s unique mechanism of
action  to  modulate  the  trafficking  of  key  harmful  effector  cells  to  the  site  of  infection  and  injury  without  compromising  internal  host
defense mechanisms, and instead enhancing it. This dual mechanism of action of lenabasum combines the inhibition of lipid mediators that
normally  reduce  the  immune  system’s  ability  to  clear  bacteria  with  the  inhibition  of  pro-inflammatory  lipid  mediators.  We  believe  this
unique activity of lenabasum ultimately drives the inflammatory response down the pro-resolution pathway.

9

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 9- Lenabasum Increases Pro-Resolving Lipid Mediators in Humans

Figure 10- Lenabasum also Decreases Inflammatory Lipid Mediators in Humans

Data  from  this  human  clinical  model  demonstrated  that  lenabasum  activates  the  resolution  of  innate  immune  responses  and  is  the  first
experimental  therapeutic  shown  to  activate  the  “pro-resolution”  pathway  in  humans.  These  results  are  consistent  with  previous  findings
from  experiments  that  evaluated  lenabasum’s  effects  in  animal  models  of  inflammation  and  support  lenabasum’s  potential  to  deliver
therapeutic  benefit  in  chronic  inflammatory  diseases  as  a  first-in-class  pro-resolution  drug.  The  results  identify  the  CB2  receptor,  the
therapeutic target of lenabasum, as a key link between the innate immune response and the endocannabinoid system acting as an upstream
activator of the resolution of innate immunity. The top dose of lenabasum in this study at 20 mg twice a day is the same as the highest dose
in the Phase 3 SSc clinical trial and the Phase 2b CF trial.

10

 
 
 
 
 
 
 
 
 
Market Opportunity for Lenabasum in Inflammatory and Fibrotic Diseases

There are many different chronic, serious inflammatory and fibrotic diseases that could be addressed by treatment with lenabasum.
Some examples of chronic, serious diseases characterized by inflammation with variable degrees of fibrosis include genetic diseases such
as  cystic  fibrosis,  nonalcoholic  steatohepatitis  (“NASH”),  myelofibrosis,  lung  diseases  including  idiopathic  pulmonary  fibrosis,
bronchiolitis  obliterans,  and  sarcoidosis  and  autoimmune  diseases  including  systemic  sclerosis,  systemic  lupus  erythematosus,  myositis,
rheumatoid arthritis, vasculitis, primary biliary cirrhosis .

In autoimmune diseases, four out of the five top selling drugs in the U.S. are anti-inflammatory biologic drugs which had total sales
of  $41  billion  in  2016.  These  drugs  however  suppress  the  immune  systems  and  thus  leave  patients  susceptible  to  serious  infections.
Lenabasum,  on  the  other  hand,  is  designed  to  resolve  inflammation  without  immunosuppression  and  is  an  oral  pill,  which  potentially
positions it as a front-line, first choice for autoimmune and other serious inflammatory and fibrotic diseases.

Lenabasum Market Opportunity for Current Indications Being Developed

Autoimmune Disorders

Systemic Sclerosis

Systemic sclerosis is a chronic, systemic autoimmune disease characterized by activation of innate and adaptive immune systems, an
obliterative, proliferative vasculopathy of small blood vessels, and fibrosis of the skin and multiple internal organs. Approximately 90,000
people in the United States and Europe have SSc. The disease affects mainly adults (80% of SSc patients are women) with mean age of
onset about 46 years of age in the United States and the majority of patients between 45-64 years of age.

A  commonly  used  system  classifies  SSc  patients  into  those  with  more  wide-spread  skin  thickening  (diffuse  cutaneous  SSc,  about
45% of patients) and those with more restricted skin thickening (limited cutaneous SSc, about 55% of patients). There is significant overlap
in the clinical manifestations for these two groups of SSc patients and no known significant differences in disease pathogenesis.

SSc  can  affect  multiple  internal  organs  in  the  body,  including  the  lungs,  heart,  kidneys,  joints,  muscles,  esophagus,  stomach  and
intestines.  Clinically  apparent  organ  involvement  that  occurs  in  more  than  a  third  of  these  patients  includes  thickened  skin,  Raynaud’s
phenomenon,  esophageal  symptoms,  pulmonary  fibrosis,  restrictive  lung  disease,  edematous  skin,  joint  contractures,  digital  ulcers,  and
muscle  weakness.  Less  frequently  occurring,  yet  life-threatening  manifestations  include  pulmonary  artery  hypertension  (about  1  in  5
patients), cardiac conduction blocks (about 1 in 10 patients), and renal crisis (about 1 in 50 patients). In the US, SSc is the most deadly of
the systemic autoimmune diseases. The median disease duration for an individual who dies of SSc is 7.1 years from the onset of symptoms.
About 85% of deaths caused by SSc are the result of pulmonary fibrosis, pulmonary artery hypertension, or cardiovascular disease, such as
sudden death.

In SSc the innate immune system fails to transition from the activation phase to the resolution phase. Individuals with SSc who have
interstitial  lung  disease  have  an  imbalance  of  bioactive  lipid  mediators,  causing  a  predominance  of  inflammatory  mediators  versus
resolving mediators. The preponderance of inflammatory mediators correlates positively with the degree of inflammation in the lungs and
negatively with forced vital capacity, a measure of lung fibrosis. Excessive activation of the pathways which cause fibrosis including TGFβ,
myofibroblast accumulation, and production of collagen and other extracellular matrix proteins are all present in SSc.

Currently, there are no FDA-approved therapies specifically for SSc, although therapies have been approved for the pulmonary artery
hypertension associated with this disease. Immunosuppressants with significant toxicities are commonly used to treat SSc, however, as far
as we know, there is a general absence of clinical data to support their use. For example, systemic corticosteroids are used frequently in SSc
patients despite concerns about toxic side effects and precipitation of renal crisis.

We believe there is general agreement in the SSc community that an effective anti-inflammatory and anti-fibrotic drug would address
a  significant  unmet  medical  need  in  SSc,  especially  a  drug  that  is  orally  administered,  can  be  used  chronically  with  other  commonly
prescribed medications for SSc, and is not immunosuppressive. We believe such a therapy would be positively received by the market.

11

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Dermatomyositis

Dermatomyositis is a serious and rare autoimmune idiopathic inflammatory myopathy with characteristic cutaneous findings. About
70,000 individuals in the U.S. suffer from dermatomyositis. Dermatomyositis usually strikes adults, with most common age of adult onset
between 50-60 years.

This systemic disorder most frequently affects the skin and muscles, and DM can also include interstitial lung disease/restrictive lung
disease,  arthritis,  gastrointestinal  and  cardiac  involvement.  Inflammatory  muscle  disease  associated  with  DM  can  cause  discomfort  and
significant weakness of the proximal muscles of the arms and legs and of the trunk. Dermatomyositis can include damaging inflammation
elsewhere  in  the  body,  for  example:  lung  inflammation  that  leads  to  lung  fibrosis  and  restrictive  lung  disease;  heart  inflammation  that
causes arrhythmia, congestive heart failure, and pericarditis, inflammation of muscles in the esophagus that causes swallowing problems or
aspiration  pneumonia,  and  arthritis.  DM  patients  may  have  active  skin  disease  despite  successful  treatment  of  their  muscle  and/or  lung
disease. The skin findings in DM can be disfiguring and are inflammatory rashes characterized by redness and itching in exposed areas of
the skin, around the eyes, on the hands, and in a “shawl” distribution on the scalp, hands, upper back, and photo-exposed areas. Due to this
chronic inflammation, patients with DM have an increased risk of malignancy, most commonly in older patients By itself, skin involvement
in DM has a large negative impact on quality of life, comparable to that of cutaneous lupus erythematosus and vulvodynia, and much higher
than those of many dermatologic diseases. The pathophysiology of DM is consistent with a patient’s inherent inability to adequately resolve
innate immune responses.

Therapy for DM involves both general measures and specific measures to control the muscle disease and the skin disease. In addition,
some  patients  with  DM  need  treatment  for  other  systemic  manifestations  or  complications.  The  muscle  component  is  treated  by
administering  corticosteroids,  typically  with  an  immunosuppressive  agent.  The  skin  disease  is  treated  by  avoiding  sun  exposure  and  by
using  sunscreens  and  photoprotective  clothing,  as  well  as  with  topical  corticosteroids,  and  antimalarial  agents.  Antimalarial  therapy
frequently  is  ineffective  or  can  cause  drug  reactions.  Antimalarial-refractory  disease  is  then  treated  with  systemic  therapies  that  may
additionally cause toxicity, including systemic glucocorticoids, immunosuppressive therapies such as methotrexate, mycophenolate mofetil,
or intravenous immunoglobulin.

We believe that an effective drug that controls inflammation in the skin, muscles, and other organs will address a significant unmet
medical need in DM, particularly a drug that is orally administered, can be used chronically with other commonly prescribed medications
for the disease, and is not immunosuppressive.

Systemic Lupus Erythematosus

Systemic lupus erythematosus, or SLE, is a prototypical autoimmune disease with a wide array of clinical manifestations, including
arthritis,  rash,  photosensitivity,  oral  ulcers,  pleuritis,  pericarditis,  kidney  problems,  seizures  and  psychosis  and  blood  cell  abnormalities.
About 500,000 individuals in the U.S. and in the E.U. suffer from SLE. The musculoskeletal system is the most commonly involved system
in SLE. Patients with SLE have an increased frequency of related autoimmune problems, such as Sjogren’s syndrome and antiphospholipid
syndrome that require additional treatments. SLE may occur with other autoimmune conditions, such as thyroiditis, hemolytic anemia, and
idiopathic thrombocytopenia purpura. Accelerated atherosclerosis among SLE patients is responsible for premature mortality.

The  pathology  of  SLE  involves  chronic  activation  of  the  innate  immune  system  by  immune  complexes,  with  activation  of  the
complement cascade, increased production of type 1 interferons and other mediators of inflammation and resultant tissue inflammation and
damage.

Drugs  specifically  approved  by  the  FDA  for  SLE  are  limited  to  aspirin,  corticosteroids,  hydroxychloroquine  and  belimumab.
Physicians commonly treat SLE disease manifestations with immunosuppressive or corticosteroid therapies that have significant toxicities.

We believe that an effective drug that controls inflammation in the joints and skin as well as improves overall disease activity will
address  a  significant  unmet  medical  need  in SLE,  particularly  a  drug  that  is  orally  administered,  can  be  used  chronically  with  other
commonly prescribed medications for the disease, and is not immunosuppressive.

Cystic Fibrosis

Cystic fibrosis is a life-long, progressive, debilitating, and life-threatening autosomal recessive disease. Cystic fibrosis is caused by
mutations  in  the  gene  Cystic  Fibrosis  Transmembrane  Conductance  Regulator  or  CFTR. The  CFTR  serves  as  a  central  hub  to  modulate
transport,  trafficking,  and  signaling  in  cells. Given multiple roles of CFTR in cellular activation and homeostasis, mutation of the CFTR
gives rise to multiple disorders in respiratory, digestive and reproductive organs.

12

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The current median life expectancy of cystic fibrosis patients is about 40 years. According to the Cystic Fibrosis Foundation, 30,000

Americans and a total of 75,000 people in the United States and Europe suffer from cystic fibrosis.

The CFTR mutations lead to defective ion transport, with reduced chloride and bicarbonate secretion and sodium hyper-absorption,
followed  by  water  hyper-absorption,  by  airway  epithelia  and  other  cell  types.  The  resultant  reduced  height  of  epithelial  lining  fluid  and
decreased hydration of mucus results in abnormally thick and sticky mucus, which obstructs the lumen into which the mucus is secreted and
reduces mucociliary clearance of bacteria. The dysfunction in ion transport in CF patients is reflected in abnormal sweat chloride levels.

The negative effects caused by CFTR gene mutations are not restricted to ion channels, but also extend to dysfunction of the innate
immune system. The nature of the abnormalities in CF is consistent with inability of innate immune responses to make the transition out of
the  activation  phase  and  into  and  through  the  resolution  phase.  Specialized  Pro-Resolving  Lipid  Mediators  (SPMs)  that  initiate  the
transition to resolution phase of innate immune responses have been found to be deficient relative to pro-inflammatory lipid mediators that
initiate its activation phase, and this reduction correlates with poor recovery of lung function following an acute pulmonary exacerbation in
children. The preponderance of activated neutrophils and pro-inflammatory macrophages in inflamed tissue, reduced neutrophil apoptosis,
high levels of neutrophil proteases that reflect persistent neutrophil activation, reduced clearance of neutrophils by macrophages, ineffective
clearance of certain bacteria such as P. aeruginosa, and excessive activation of fibrotic pathways all show the inability of individuals with
CF to resolve their innate immune responses.

An overview of the disease progression in cystic fibrosis is provided in Figure 11.

Figure 11: Factors involved in cystic fibrosis progression

As  a  result  of  obstructing  secretions,  recurrent  infections,  hyper-inflammation,  and  activated  fibrotic  pathways  in  the  lungs,
individuals  with  CF  develop  bronchiectasis,  pulmonary  fibrosis,  mixed  obstructive/restrictive  lung  disease,  and,  eventually,  respiratory
failure.  They  may  also  have  chronic  sinusitis  and  nasal  polyps.  The  same  pathophysiologic  events  of  obstruction,  infection,  chronic
inflammation,  and  tissue  damage/fibrosis  occur  in  the  gastrointestinal  system,  which  can  lead  to  bowel  obstructions,  fat  malabsorption,
bacterial  overgrowth,  gut  dysmotility,  malnutrition,  growth  retardation,  low  weight,  pancreatic  insufficiency,  cystic  fibrosis-related
diabetes,  gallstones,  and  liver  failure  including  cirrhosis. Adult  males  with  cystic  fibrosis  have  degeneration  of  the  ductus  deferens  and
sterility. End-stage organ involvement in cystic fibrosis is sometimes treated with transplantation, especially lung transplantation.

Current therapies for cystic fibrosis include mucolytics to breakdown mucus, antibiotics to fight bacterial infection, and drugs that act
to restore some functionality to the faulty CFTR protein in specific genetic sub-populations of patients, including Kalydeco™, Orkambi™
and the recently approved Symdeco™. Drugs that are designed to partially restore ion channel functions of mutant CFTR protein are not
necessarily  able  to  correct  the  dysfunction  of  the  innate  immune  system.  For  example,  ivacaftor  treatment  has  not  been  associated  with
reduction in sputum neutrophils or neutrophil derived proteases in CF patients.

All  CF  patients  appear  to  have  dysfunction  in  resolution  of  the  innate  immune  system,  no  matter  which  CFTR  mutations  a  given
patient has. This is borne out by the incidence of pulmonary exacerbations which according to the CF registry occur at an annual rate of
17,000 case per year and an event rate of 0.70 times per patient per year. A pulmonary exacerbation is acute worsening of the patient’s day-
to-day  signs  and  symptoms  of  lung  disease  and  is  associated  with  worsening  of  inflammation  at  the  start  of  the  exacerbation.  Failure  to
resolve  lung  inflammation  during  a  pulmonary  exacerbation  is  associated  with  treatment  failure,  such  as  need  to  change  antibiotics,
prolonged antibiotic therapy, early recurrent of pulmonary exacerbation, and failure to recover lung function lost during the exacerbation.
Pulmonary  exacerbations  in  CF  are  associated  with  reduced  survival,  lung  function,  and  patient  quality  of  life  and  increased  health-care
burden. The annual average pulmonary exacerbation hospitalization related costs in the U.S. vary from $30,000 for a “mild” exacerbation to
as high as $120,000 in patients with severe lung disease. Currently, there are no approved drugs used to address pulmonary exacerbations, a
key driver of morbidity and mortality in cystic fibrosis.

13

 
 
 
 
 
 
 
 
 
 
 
 
 
We  believe  there  is  general  agreement  in  the  CF  community  that  an  effective  drug  that  will  reduce  hyper-inflammation  and  help
reduce  the  rate  of  pulmonary  exacerbations  would  address  a  significant  unmet  medical  need  in  CF,  especially  a  drug  that  is  orally
administered, can be used chronically with other prescribed medications for CF, is not immunosuppressive, and has anti-fibrotic effects.

Current Treatment Alternatives for Chronic, Serious Diseases Characterized by Chronic Inflammation and Fibrosis

Drugs currently used to treat chronic serious inflammatory and fibrotic diseases are divided broadly into several groups: non-steroidal
anti-inflammatory  drugs  (NSAIDS),  anti-malarial  agents,  systemic  corticosteroids,  and  other  immunosuppressive  agents.  The  choice  of
agent or combination generally depends upon the underlying disease, and physician and patient preferences.

The potency of NSAIDs in the treatment of chronic, serious diseases, inflammatory and fibrotic diseases is often too limited to control
disease activity, requiring patients to receive additional treatment with anti-malarial drugs, systemic corticosteroids or immunosuppressive
agents. Anti-malarial therapy is used as a baseline treatment for chronic inflammation in certain autoimmune diseases, typically SLE and
DM,  especially  in  patients  with  milder  manifestations  of  disease. Anti-malarial  therapy  is  frequently  ineffective  in  controlling  chronic,
serious inflammation, or can cause adverse drug reactions. Antimalarial-refractory disease is then treated with systemic therapies that may
cause additional toxicity, including systemic corticosteroids and immunosuppressive agents.

Systemic corticosteroids are commonly prescribed for treatment of chronic, serious diseases characterized by chronic inflammation
and  fibrosis,  such  as  cystic  fibrosis,  SSc,  and  DM.  Chronic  corticosteroid  use  is  limited  by  toxicities  that  include  growth  retardation,
iatrogenic  Cushings’s  Disease,  hypertension,  high  glucose  levels/diabetes,  obesity,  brittle  bones/osteoporosis,  aseptic  necrosis  of  bone,
immunosuppression/increased infection, glaucoma, depression, and psychosis. Thus, safer yet potent alternatives to steroids have long been
sought.

Multiple other immunosuppressive drugs are used to treat chronic, serious, inflammatory diseases, to achieve disease control and to
curtail the need for corticosteroids. These include biological agents, such as monoclonal antibodies or fusion proteins, which target a very
specific molecule in a key disease pathway. These drugs have a number of disadvantages including parental administration and increased
associated  incidence  of  malignancy  and  infection.  Non-biologic  immunosuppressive  agents  that  are  used  to  treat  chronic,  serious
inflammation  include  methotrexate,  mycophenolate,  leflunomide,  cyclophosphamide,  and  azathioprine,  among  others.  Intravenous
immunoglobulin is used occasionally to treat refractory chronic, serious inflammatory diseases.

Lenabasum As a Pro Resolving Drug with a Novel Mechanism of Action Has Safety Advantages versus Anti-Inflammatory Drugs,
Steroids and Immunosuppressive Agents

Corticosteroids  and  NSAIDs  exert  their  effect  by  inhibiting  the  activation  of  inflammation.  In  simple  terms,  both  classes  of  drugs
inhibit  inflammation  by  “interfering”  with  the  biochemical  pathways  in  the  cell  that  promote  and  sustain  inflammation.  For  example,
NSAIDs directly inhibit the activity of the COX 1 and COX 2 enzymes that are responsible for generating pro-inflammatory eicosanoids. A
drawback of this approach is that it one arm of the eicosanoid pathway (e.g. COX but not LOX) is inhibited resulting in a buildup in LOX-
derived inflammatory mediators which leads to gastrointestinal and cardiovascular side effects (termed “molecular shunting”). Lenabasum
on  the  other  hand  triggers  endogenous  pathways  that  resolves  inflammation  and  halts  fibrosis  without  immunosuppression  Therefore
lenabasum potentially offers a new and unique mechanism to treat a spectrum of rare, chronic, serious inflammatory and fibrotic diseases.

Autoimmune Disorders

Systemic Sclerosis

Cytotoxic and immunosuppressive medications are used to control overall disease activity in SSc. In a one-year study of 2,739 SSc
patients  in  the  U.S.,  44.3%  received  corticosteroids,  4.8%  received  mycophenolate  mofetil,  2.7%  received  cyclophosphamide,  and  0.5%
received cyclosporine. In a report of 7,655 patients in the European Scleroderma Trials and Research Group database, the percentage of
SSc  patients  receiving  immunosuppressant  treatments  were:  prednisone  (43.5%)  with  median  dose  of  8  mg/day;  cyclophosphamide
(15.9%); methotrexate (13.7%); azathioprine (6.4%); mycophenolate mofetil (4.2%), d-penicillamine (2.1%), and rituximab (1%).

14

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
DM

Current medications for DM involve both treatments to reduce overall disease activity and specific treatments to control the muscle
disease  and  the  skin  disease.  The  muscle  component  is  treated  by  administering  corticosteroids,  typically  with  an  immunosuppressive
agent. The skin component of the disease is treated by avoiding sun exposure and by using sunscreens and photoprotective clothing, as well
as with topical corticosteroids, antimalarial agents such as hydroxychloroquine and immunosuppressive medications such as methotrexate,
azathioprine, mycophenolate mofetil, or intravenous immunoglobulin.

Systemic Lupus Erythematosus

Similar to DM, current medications for SLE involve treatments to reduce overall disease activity and specific treatments for a given
organ involvement. Commonly used medications include NSAIDs, topical corticosteroids, antimalarial agents, prednisone, belimumab, and
other immunosuppressive medications such as mycophenolate, methotrexate, azathioprine, and cyclophosphamide.

Cystic Fibrosis

The  importance  of  treating  inflammation  in  cystic  fibrosis  is  confirmed  in  the  Cystic  Fibrosis  Foundation’s  Strategic  Plan,  2014-
2018.  While  treatment  with  systemic  corticosteroids  and  ibuprofen  are  effective  in  improving  the  symptoms  of  cystic  fibrosis,  the  side
effects associated with chronic treatment using these drugs are significant. Specifically, long term usage of oral corticosteroids in children
are  associated  with  glucose  intolerance,  cataract  formation,  multiple  bone  fractures  secondary  to  osteoporosis  or  osteopenia,  Cushing
disease effects, and anorexia nervosa as well as growth retardation. The use of high dose ibuprofen is limited by the years of treatment it
takes to show benefit, a need to monitor levels closely in the patient, and the increased risk of gastrointestinal bleeding. As a result, these
drugs have limited long-term use in cystic fibrosis.

Other therapies routinely used by cystic fibrosis patients routinely include antibiotics, such as Cayston from Gilead and TOBI from
Novartis,  and  mucolytics,  such  as  Pulmozyme  from  Genentech.  In  addition,  Vertex  currently  markets  the  only  approved  drugs  that
specifically target the defective CFTR protein, Kalydeco and Orkambi.

Competition

For  autoimmune  disorders  such  as  SSc,  DM  and  SLE,  physicians  treat  patients  with  a  number  of  drugs  including  potent
immunosuppressants and cytotoxics to try to reduce the autoimmune response characteristic of the disease. These drugs have not proven to
be very effective thus there remains a high unmet need for safe and effective drugs to treat these autoimmune disorders. Several companies,
including Roche, Boehringer Ingelheim, Bayer, Inventiva, Bristol Myers and Sanofi, are actively working to develop new drugs for treating
the inflammation and/or fibrosis in SSc. To the best of our knowledge, lenabasum offers a unique mode of action to treat SSc being one of
the few oral drugs with the potential to resolve inflammation and halt fibrosis without immunosuppression.

There are numerous drug therapies currently used to treat CF patients, targeting different aspects of this complex disease. Inhaled and
oral  antibiotics  address  the  pulmonary  microbial  infection.  Mucolytics  address  the  accumulation  of  mucus  in  the  lungs.  Bronchodilators
and  hydration  agents  are  also  used  to  help  improve  pulmonary  function.  Targeting  of  the  inflammatory  component  of  the  disease  is
currently done by high dose Ibuprofen and oral corticosteroids. While these offer some clinical benefit, they are not used chronically due to
their adverse side effects which include immunosuppression and metabolic changes (steroids) as well as the risk of gastrointestinal bleeding
(ibuprofen).  Thus,  there  is  a  clear  and  urgent  unmet  medical  need  for  safe  and  effective  inflammation-targeting  drugs  for  the  chronic
treatment of CF that could potentially have a beneficial impact on morbidity and mortality.

An  emerging  area  of  CF  therapy  is  the  development  of  correctors  and  potentiators  of  CFTR.  In  January  2012,  Vertex  launched
Kalydeco™, or ivacaftor, the first ever cystic fibrosis drug specifically targeting the underlying genetic defect in the CFTR ion channel.
Kalydeco is a small synthetic oral molecule that helps potentiate the function of the G551D mutant CFTR protein, resulting in improved
forced expiratory volume in one second (a measure of obstruction of airflow in the lungs) by approximately 10% in cystic fibrosis patients.

A combination drug from Vertex, Orkambi™ (lumacaftor/ivacaftor) combination treatment targets a larger population of homozygote
ΔF508 CFTR mutation patients. Orkambi was approved by the FDA on July 2, 2015. In clinical studies, the lung function of patients taking
Orkambi improved by a range of 2.6 percentage points to 3 percentage points, compared with that of patients receiving placebo.

15

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Several other companies are developing drugs for CF targeting CFTR either as a protein or mRNA transcript. These are highlighted

in the table below:

Company
PTC Therapeutics

Drug

  Ataluren

Mechanism
  Ribosome read thru

(nonsense mutations)

Delivery

Mutation

Stage

  Oral

  Class 1, nonsense   Phase 3

Selected CF Products in Development

  pGM169/GL67A   Gene therapy

Inhaled

  All

  Phase 2b

UK CF Gene Therapy
Consortium
Novartis
Bayer

Flatley Discovery Lab
Galapagos / AbbVie

ProQR

Celtaxsys

  QBW251
  Riociguat

  Potentiator

  Oral
stimulates sGC enzyme   Oral

  FDL169
  GLPG1837 /
ABBV-974

  QR-010

  Corrector
  Potentiator

  Oral
  Oral

  Gating
  F508del

homozygous

  F508del
  Gating

  Phase 2
  Phase 2

  Phase 1
  Phase 1

  RNA oligonucleotide

Inhaled

  F508del

  Phase 2

homozygous

  Acebilustat

  Anti-inflammatory-

  Oral

  N/A

  Phase 2

inhibits production of
LTB4

Proteostasis

  PTI130

  CFTR amplifier

  Oral

  All

  Phase 2

Research and Development

We  incurred  expenses  of  approximately  $26,039,000,  $15,437,000  and  $5,889,000  for  research  and  development  activities  for  the
years  ended  December  31,  2017,  2016  and  2015,  respectively.  These  expenses  include  cash  and  non-cash  expenses  relating  to  the
development of our clinical and pre-clinical programs for lenabasum.

Intellectual Property

We have filed patent applications directed to lenabasum, compositions and methods for treating disease using lenabasum. If granted,
the  resulting  patents  would  expire  on  dates  ranging  from  2031  to  2034,  subject  to  extension  under  certain  circumstances.  The  patent
application filings are directed to:

●

●

●

Compositions including  an  improved  ultrapure  version  of  lenabasum  and  uses  of  the  compositions  for  the  treatment  of
fibrotic conditions and inflammatory conditions;

The use of lenabasum in the treatment of fibrotic diseases; and

Lenabasum formulations and uses of the formulations for the treatment of disease.

On  October  31,  2017,  the  Company  announced  that  the  U.S.  Patent  and  Trademark  Office  (“USPTO”)  issued  U.S.  Patent  No.
9,801,849 to the Company with claims covering the use of pharmaceutical compositions comprising lenabasum, Corbus’ lead product in
development for the treatment of inflammatory diseases. The patent provides to Corbus intellectual property exclusivity regarding use of
lenabasum to treat inflammatory diseases in the United States to February 12, 2034.

16

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
On  November  27,  2017,  the  Company  announced  that  the  U.S.  Patent  and  Trademark  Office  (“USPTO”)  issued  U.S.  Patent  No.
9,820,964 to the Company with claims covering the use of pharmaceutical compositions comprising lenabasum for the treatment of fibrotic
diseases, encompassing the Company’s lead indications: systemic sclerosis, DM, cystic fibrosis as well as others. The patent provides to
Corbus intellectual property exclusivity in the United States regarding the use of lenabasum through February 12, 2034.

Lenabasum has been granted Orphan Drug Designation for both cystic fibrosis and systemic sclerosis in the U.S. and in the European
Union. We plan to seek orphan drug status for lenabasum in DM and possibly other orphan inflammatory diseases from the U.S. Food and
Drug Administration  and  in  Europe.  Orphan  drug  status  provides  seven  years  of  market  exclusivity  in  the  U.S.  and  ten  years  in  Europe
beginning on the date of drug approval.

Our commercial success depends in part on our ability to obtain and maintain patent and other proprietary protection for lenabasum
and to operate without infringing the proprietary right of others and to prevent others from infringing our proprietary rights. We strive to
protect our intellectual property through a combination of patents and trademarks as well as through the confidentiality provisions in our
contracts. With respect to lenabasum, we endeavor to obtain and maintain patent protection in the U.S. and internationally on all patentable
aspects of the drug. We cannot be sure that the patents will be granted with respect to any patent applications we may own or license in the
future, nor can we be sure that any patents issued or licensed to us in the future will be useful in protecting our technology. For this and
more  comprehensive  risks  related  to  our  intellectual  property,  please  see  “Risk  Factors—Risks  Relating  to  Our  Intellectual  Property
Rights.”

In  addition  to  patent  protection,  we  rely  on  trade  secrets  and  know-how  to  develop  and  maintain  our  competitive  position.  For
example, aspects of our proprietary technology platform are based on unpatented trade secrets and know-how related to the manufacturing
of lenabasum. Trade secrets and know-how can be difficult to protect. We seek to protect our proprietary technology and processes, in part,
by  confidentiality  agreements  and  invention  assignment  agreements  with  our  employees,  consultants,  scientific  advisors,  contractors  and
commercial  partners.  These  agreements  are  designed  to  protect  our  proprietary  information  and,  in  the  case  of  the  invention  assignment
agreements, to grant us ownership of technologies that are developed through a relationship with a third party. We also seek to preserve the
integrity  and  confidentiality  of  our  data  and  trade  secrets  by  maintaining  physical  security  of  our  premises  and  physical  and  electronic
security of our information technology systems. While we have confidence in these individuals, organizations and systems, agreements or
security measures may be breached, and we may not have adequate remedies for any breach. In addition, our trade secrets may otherwise
become known or be independently discovered by competitors. To the extent that our contractors use intellectual property owned by others
in their work for us, disputes may arise as to the rights in related or resulting know-how and inventions.

We also plan to seek trademark protection in the U.S. and outside of the U.S. where available and when appropriate. We intend to use

these registered marks in connection with our pharmaceutical research and development as well as our product candidates.

Manufacturing and Supply for Lenabasum

We have developed and validated a good manufacturing practice, or GMP, process to manufacture lenabasum active pharmaceutical
ingredient (“API”) and drug product through our contract manufacturers. Our existing API contract manufacturer has produced multi-Kg
scale  bulk  batches  under  GMP  for  our  on-going  clinical  studies  and  is  under  agreement  to  produce  sufficient  API  required  prior  to
submitting an NDA filing with the FDA. We do not own or operate manufacturing facilities for the production of lenabasum. We expect to
depend on third-party suppliers and manufacturing organizations for all of our clinical trial quantities of raw materials and drug substance.
Lenabasum is a synthetic molecule and there are readily available supplies of all raw materials necessary for the manufacture of lenabasum.

Regulatory Matters

Government Regulation

The  process  of  obtaining  regulatory  approvals  and  the  subsequent  compliance  with  appropriate  federal,  state,  local  and  foreign
statutes  and  regulations  require  the  expenditure  of  substantial  time  and  financial  resources.  Failure  to  comply  with  the  applicable
requirements  at  any  time  during  the  product  development  process,  approval  process  or  after  approval,  may  subject  an  applicant  to
administrative or judicial sanctions. These sanctions could include the US FDA’s refusal to approve pending applications, withdrawal of an
approval, a clinical hold, warning letters, product recalls or withdrawals from the market, product seizures, total or partial suspension of
production or distribution, injunctions, fines, refusals of government contracts, restitution, disgorgement, or civil or criminal penalties. Any
agency or judicial enforcement action could have a material adverse effect on us

Any product development activities related to lenabasum or products that we may develop or acquire in the future will be subject to
extensive  regulation  by  various  government  authorities,  including  the  FDA,  other  federal,  state  and  local  agencies  and  comparable
regulatory authorities in other countries, which regulate the design, research, clinical and non-clinical development, testing, manufacturing,
storage, distribution, import, export, labeling, advertising and marketing of pharmaceutical products and devices. Generally, before a new
drug can be sold, considerable data demonstrating its quality, safety and efficacy must be obtained, organized into a format specific to each
regulatory  authority,  submitted  for  review  and  approved  by  the  regulatory  authority.  The  data  are  often  generated  in  two  distinct
development states: pre-clinical and clinical.

17

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Development of Drugs in the United States

Lenabasum or other products that we may develop or acquire in the future must be approved by the FDA before they may be legally
marketed  in  the  United  States.  For  new  chemical  entities,  the  pre-clinical  development  stage  generally  involves  synthesizing  the  active
component,  developing  the  formulation  and  determining  the  manufacturing  process,  as  well  as  carrying  out  non-human  toxicology,
pharmacology and drug metabolism studies that support subsequent clinical testing. These pre-clinical laboratory and animal tests are often
performed  under  the  FDA’s  Good  Laboratory  Practices  regulations. A  drug’s  sponsor  must  submit  the  result  of  the  pre-clinical  tests,
together with manufacturing information, analytical data and any available clinical data or literature and a proposed clinical protocol to the
FDA as part of an IND application, which is a request for authorization from the FDA to administer an investigational drug or biological
product to humans. Similar filings are required in other countries.

The clinical stage of development can generally be divided into three sequential phases that may overlap, Phase 1, Phase 2 and Phase
3 clinical trials. In Phase 1, generally, small numbers of healthy volunteers are initially exposed to single escalating doses and then multiple
escalating  doses  of  the  product  candidate.  The  primary  purpose  of  these  studies  is  to  assess  the  metabolism,  pharmacologic  action  and
general safety of the drug. Phase 2 trials typically involve studies in disease-affected patients to determine the dose required to produce the
desired benefits, common short-term side effects and risks. Phase 2 studies are typically well-controlled, closely monitored, and conducted
in a relatively small number of patients, usually involving no more than several hundred subjects. Phase 3 trials are intended to gather the
additional  information  about  effectiveness  and  safety  that  is  needed  to  evaluate  the  overall  benefit-risk  relationship  of  the  drug  and  to
provide an adequate basis for physician labeling. Phase 3 studies usually include from several hundred to several thousand subjects and are
closely  controlled  and  monitored.  In  addition  to  these  Phase  1-3  trials,  other  trials  may  be  conducted  to  gather  additional  safety,
pharmacokinetic  and  pharmacodynamic  information.,  Pharmaceutical  products  with  active  ingredients  equal  or  similar  to  those  already
approved  by  the  FDA  often  have  more  streamlined  development  programs  than  compounds  entirely  new  to  the  agency,  often  skipping
Phase 1 and 2 trials.

A clinical plan must be submitted to the FDA prior to commencement of a clinical trial. If the FDA has concerns about the clinical
plan or the safety of the proposed studies, they may suspend or terminate the study at any time. Studies must be conducted in accordance
with good clinical practice and reporting of study progress and any adverse experiences is required. Studies are also subject to review by
independent institutional review boards responsible for overseeing studies at particular sites and protecting human research study subjects.
An  independent  institutional  review  board  may  also  suspend  or  terminate  a  study  once  initiated. Accordingly,  we  cannot  be  sure  that
submission of an IND will result in the FDA allowing clinical trials to begin, or that once begun, issues will not arise that could cause the
trial to be suspended or terminated.

Post-approval studies, sometimes referred to as Phase 4 clinical trials, may be conducted after initial marketing approval. Sometimes,
these studies are used to gain additional experience from the treatment of patients in the intended therapeutic condition. In certain instances,
the FDA may mandate the performance of Phase 4 studies. In other situations, post-approval studies aim to gain additional indications for a
medication.

Special Protocol Assessment

The Federal Food, Drug, and Cosmetic Act directs the FDA to meet with sponsors, pursuant to a sponsor’s written request, for the
purpose of reaching agreement on the design and size of clinical trials intended to form the primary basis of an efficacy claim in an NDA. If
an agreement is reached, the FDA will reduce the agreement to writing and make it part of the administrative record. This agreement is
called  a  special  protocol  assessment,  or  SPA.  While  the  FDA’s  guidance  on  SPAs  states  that  documented  SPAs  should  be  considered
binding on the review division, the FDA has latitude to change its assessment if certain exceptions apply. Exceptions include public health
concerns emerging that were unrecognized at the time of the protocol assessment, identification of a substantial scientific issue essential to
the safety or efficacy testing that later comes to light, a sponsor’s failure to follow the protocol agreed upon, or the FDA’s reliance on data,
assumptions or information that are determined to be wrong.

18

 
 
 
 
 
 
 
 
 
 
 
Review and Approval in the United States

Following pivotal or Phase 3 trial completion, data are analyzed to determine safety and efficacy. Data are then filed with the FDA in
a New Drug Application, or an NDA, along with proposed labeling for the product and information about the manufacturing and testing
processes and facilities that will be used to ensure product quality. In the United States, FDA approval of an NDA must be obtained before
marketing  a  pharmaceutical  product.  The  NDA  must  contain  proof  of  safety,  purity,  potency  and  efficacy,  which  entails  extensive  pre-
clinical and clinical testing.

The FDA will likely re-analyze the clinical trial data, which could result in extensive discussions between the FDA and us during the
review  process.  The  review  and  evaluation  of  applications  by  the  FDA  is  extensive  and  time  consuming  and  may  take  several  years  to
complete. The FDA may conduct a pre-approval inspection of the manufacturing facilities for the new product to determine whether they
comply with current good manufacturing practice requirements and may also audit data from clinical and pre-clinical trials.

There is no assurance that the FDA will act favorably or quickly in making such reviews and significant difficulties or costs may be
encountered  in  our  efforts  to  obtain  FDA  approvals.  The  FDA  may  require  that  certain  contraindications,  warnings  or  precautions  be
including in the product labeling, or may condition the approval of the NDA on other changes to the proposed labeling, development of
adequate  controls  and  specifications,  or  a  commitment  to  conduct  post-marketing  testing  or  clinical  trials  and  surveillance  programs  to
monitor the safety of approved products that have been commercialized. Further, the FDA may place conditions on approvals including the
requirement for a risk evaluation and mitigation strategy, or REMS, to assure the safe use of the drug. If the FDA concludes a REMS is
needed,  the  sponsor  of  the  NDA  must  submit  a  proposed  REMS;  the  FDA  will  not  approve  the  NDA  without  an  approved  REMS,  if
required. A  REMS  could  include  medication  guides,  physician  communication  plans,  or  elements  to  assure  safe  use,  such  as  restricted
distribution methods, patient registries and other risk minimization tools. Any of these limitations on approval or marketing could restrict
the commercial promotion, distribution, prescription or dispensing of products. Product approvals may be withdrawn for non-compliance
with regulatory standards or if problems occur.

Orphan Drug Designation

Under the Orphan Drug Act, the FDA may grant orphan drug designation to a drug intended to treat a rare disease or condition, which
is  generally  a  disease  or  condition  that  affects  fewer  than  200,000  individuals  in  the  United  States.  Orphan  product  designation  must  be
requested before submitting an NDA. After the FDA grants orphan drug designation, the identity of the therapeutic agent and its potential
orphan use are disclosed publicly by the FDA. Orphan product designation does not convey any advantage in or shorten the duration of
regulatory review and approval process. In addition to the potential period of exclusivity, orphan designation makes a company eligible for
grant funding of up to $500,000 per year for four years to defray costs of clinical trial expenses, tax credits for clinical research expenses
and potential exemption from the FDA application user fee.

If a product that has orphan designation subsequently receives the first FDA approval for the disease or condition for which it has
such  designation,  the  product  is  entitled  to  orphan  drug  exclusivity,  which  means  the  FDA  may  not  approve  any  other  applications  to
market the same drug for the same indication for seven years, except in limited circumstances, such as (i) the drug’s orphan designation is
revoked;  (ii)  its  marketing  approval  is  withdrawn;  (iii)  the  orphan  exclusivity  holder  consents  to  the  approval  of  another  applicant’s
product; (iv) the orphan exclusivity holder is unable to assure the availability of a sufficient quantity of drug; or (v) a showing of clinical
superiority to the product with orphan exclusivity by a competitor product. If a drug designated as an orphan product receives marketing
approval for an indication broader than what is designated, it may not be entitled to orphan drug exclusivity. We have received orphan drug
designation for lenabasum for cystic fibrosis and systemic sclerosis. There can be no assurance that we will receive orphan drug designation
for lenabasum for DM, or additional orphan diseases.

Drug Development in Europe

In the European Union, our future products may also be subject to extensive regulatory requirements. Similar to the United States, the
marketing  of  medicinal  products  is  subject  to  the  granting  of  marketing  authorizations  by  regulatory  agencies.  . Also,  as  in  the  United
States, the various phases of pre-clinical and clinical research in the European Union are subject to significant regulatory controls.

19

 
 
 
 
 
 
 
 
 
 
 
 
 
Review and Approval in the European Union

Medicinal  Products  require  a  marketing  authorization  before  they  may  be  placed  on  the  market  in  the  European  Economic Area
(EEA), comprising the member states of the European Union as well as Iceland, Liechtenstein and Norway. There are various application
procedures available, depending on the type of product involved. The centralized procedure gives rise to marketing authorizations that are
valid throughout the EEA. Applicants file marketing authorization applications with the European Medicines Agency (EMA) where they
are reviewed by a relevant scientific committee, in most cases the Committee for Medicinal Products for Human Use (CHMP). The EMA
forwards  CHMP  opinions  to  the  European  Commission,  which  uses  them  as  the  basis  for  deciding  whether  to  grant  a  marketing
authorization. The centralized procedure is compulsory for medicinal products that (1) are derived from specified biotechnology processes,
(2)  contain  a  new  active  substance  (not  yet  approved  on  November  20,  2005)  indicated  for  the  treatment  of  certain  diseases,  such  as
HIV/AIDS, cancer, diabetes, neurodegenerative disorders, viral diseases or autoimmune diseases and other immune dysfunctions, (3) are
orphan medicinal products or (4) are advanced therapy medicinal products (such as gene therapy, somatic cell therapy and tissue engineered
products).  For  medicines  that  do  not  fall  within  these  categories,  an  applicant  may  voluntarily  submit  an  application  for  a  centralized
marketing authorization to the EMA, as long as the CHMP agrees that (i) the medicine concerned contains a new active substance (not yet
approved on November 20, 2005), (ii) the medicine is a significant therapeutic, scientific, or technical innovation, or (iii) if its authorization
under the centralized procedure would be in the interest of public health.

For those medicinal products for which the centralized procedure is not available, the applicant must submit marketing authorization
applications to the national medicines regulators through one of three procedures: (1) a national procedure, which results in a marketing
authorization in a single EEA member state; (2) the decentralized procedure, in which applications are submitted simultaneously in two or
more EEA member states; and (3) the mutual recognition procedure, which must be used if the product has already been authorized in at
least  one  other  EEA  member  state,  and  in  which  the  EEA  member  states  are  required  to  grant  an  authorization  recognizing  the  existing
authorization in the other EEA member state, unless they identify a serious risk to public health.

Marketing authorization applications must usually include the results of clinical trials. Clinical trials of medicinal products in the EEA
must be conducted in accordance with EEA and national regulations and the International Conference on Harmonization guidelines on GCP.
Prior  to  commencing  a  clinical  trial  in  a  particular  EEA  member  state,  the  sponsor  must  obtain  a  clinical  trial  authorization  from  the
competent authority and a positive opinion from an independent ethics committee.

In the EEA, companies developing a new medicinal product must agree a Paediatric Investigation Plan (PIP) with the EMA and must
conduct pediatric clinical trials in accordance with that PIP, unless a waiver applies, e.g., because the relevant disease or condition occurs
only  in  adults.  The  marketing  authorization  application  for  the  product  must  include  the  results  of  pediatric  clinical  trials  conducted  in
accordance  with  the  PIP,  unless  a  waiver  applies,  or  a  deferral  has  been  granted,  in  which  case  the  pediatric  clinical  trials  must  be
completed at a later date. 

Post-Marketing Requirements

Following approval of a new product, a pharmaceutical company and the approved product are subject to continuing regulation by
the  FDA  and  other  federal  and  state  regulatory  authorities,  including,  among  other  things,  monitoring  and  recordkeeping  activities,
reporting  to  applicable  regulatory  authorities  of  adverse  experiences  with  the  product,  providing  the  regulatory  authorities  with  updated
safety  and  efficacy  information,  product  sampling  and  distribution  requirements,  and  complying  with  promotion  and  advertising
requirements,  which  include,  among  others,  standards  for  direct-to-consumer  advertising,  restrictions  on  promoting  drugs  for  uses  or  in
patient  populations  not  described  in  the  drug’s  approved  labeling  (known  as  “off-label  use”),  and  limitations  on  industry-sponsored
scientific and educational activities. Although physicians may prescribe legally available drugs for off-label uses, manufacturers may not
market or promote such off-label uses. Modifications or enhancements to the products or labeling or changes of site of manufacture are
often  subject  to  the  approval  of  the  FDA  and  other  regulators,  which  may  or  may  not  be  received  or  may  result  in  a  lengthy  review
process.. The FDA regulations require the products be manufactured in specific approved facilities and in accordance with current good
manufacturing practices, and NDA holders must list their products and register their manufacturing establishments with the FDA. These
regulations  also  impose  certain  organizational,  procedural  and  documentation  requirements  with  respect  to  manufacturing  and  quality
assurance activities. Drug manufacturers and other entities involved in the manufacture and distribution of approved drugs are subject to
periodic  unannounced  inspections  by  the  FDA  and  certain  state  agencies  for  compliance  with  current  good  manufacturing  practice  and
other  laws.  NDA  holders  using  contract  manufacturers,  laboratories  or  packagers  are  responsible  for  the  selection  and  monitoring  of
qualified firms. These firms are subject to inspections by  the  FDA  at  any  time,  and  the  discovery  of  violative  conditions  could  result  in
enforcement actions that interrupt the operation of any such facilities or the ability to distribute products manufactured, processed or tested
by them.

Other Regulatory Matters

Manufacturing, sales, promotion and other activities following product approval are also subject to regulation by numerous regulatory
authorities in addition to the FDA, including, in the United States, the Centers for Medicare & Medicaid Services, or CMS, other divisions
of the Department of Health and Human Services, the Drug Enforcement Administration, the Consumer Product Safety Commission, the
Federal Trade Commission, the Occupational Safety & Health Administration, the Environmental Protection Agency, and state and local
governments. These regulations include:

●  the  federal  healthcare  program  anti-kickback  law  which  prohibits,  among  other  things,  persons  from  soliciting,  receiving  or
providing  remuneration,  directly  or  indirectly,  to  induce  either  the  referral  of  an  individual,  for  an  item  or  service  or  the  purchasing  or
ordering  of  a  good  or  service,  for  which  payment  may  be  made  under  federal  healthcare  programs  such  as  the  Medicare  and  Medicaid
programs;

20

 
 
 
 
 
 
 
 
 
 
 
 
 
 
● federal false claims laws which prohibit, among other things, individuals or entities from knowingly presenting, or causing to be
presented,  claims  for  payment  from  Medicare,  Medicaid,  or  other  government  reimbursement  programs  that  are  false  or  fraudulent.  The
government may assert that a claim including items or services resulting from a violation of the federal healthcare program anti-kickback
law or related to off-label promotion constitutes a false or fraudulent claim for purposes of the federal false claims laws;

● the Federal Physician Payments Sunshine Act within the ACA, and its implementing regulations, require that certain manufacturers
of  drugs,  devices,  biological  and  medical  supplies  for  which  payment  is  available  under  Medicare,  Medicaid  or  the  Children’s  Health
Insurance  Program  (with  certain  exceptions)  to  report  information  related  to  certain  payments  or  other  transfers  of  value  made  or
distributed to physicians and teaching hospitals, or to entities or individuals at the request of, or designated on behalf of, the physicians and
teaching  hospitals  and  to  report  annually  certain  ownership  and  investment  interests  held  by  physicians  and  their  immediate  family
members; and

●  the  Health  Insurance  Portability  and  Accountability  Act,  or  HIPAA,  as  amended  by  the  Health  Information  Technology  for
Economic  and  Clinical  Health Act,  or  HITECH,  and  its  implementing  regulations,  imposes  certain  requirements  relating  to  the  privacy,
security  and  transmission  of  individually  identifiable  health  information.  Among  other  things,  HITECH  makes  HIPAA’s  privacy  and
security standards directly applicable to “business associates”—independent contractors or agents of covered entities that receive or obtain
protected health information in connection with providing a service on behalf of a covered entity. HITECH also created four new tiers of
civil monetary penalties, amended HIPAA to make civil and criminal penalties directly applicable to business associates and possibly other
persons,  and  gave  state  attorneys  general  new  authority  to  file  civil  actions  for  damages  or  injunctions  in  federal  courts  to  enforce  the
federal HIPAA laws and seek attorneys’ fees and costs associated with pursuing federal civil actions.

● applicable child-resistant packaging requirements under the U.S. Poison Prevention Packaging Act.

●The Lanham Act and federal antitrust laws.

●state law equivalents of each of the above federal laws, such as anti-kickback and false claims laws, which may apply to items or
services reimbursed by any third party payer, including commercial insurers, and state laws governing the privacy and security of health
information  in  certain  circumstances,  many  of  which  differ  from  each  other  in  significant  ways  and  often  are  not  preempted  by  federal
laws, thus complicating compliance efforts.

Distribution  of  pharmaceutical  products  is  subject  to  additional  requirements  and  regulations,  including  extensive  record-keeping,

licensing, traceability, and storage and security requirements intended to prevent the unauthorized sale of pharmaceutical products

The  handling  of  any  controlled  substances  must  comply  with  the  U.S.  Controlled  Substances Act  and  the  Controlled  Substances
Import and Export Act. In the United States, our product candidate, lenabasum, is currently classified as Schedule I controlled substance as
defined in the Controlled Substance Act (“CSA”). This designation is based on lenabasum’s chemical structure and pharmacology (namely,
it  being  a  synthetic  endocannabinoid  mimetic  that  binds  to  the  CB2  receptor).  Even  though  lenabasum’s  mechanism  of  action  is  to
modulate the immune system and results to date from clinical studies have demonstrated the drug has no psychotropic effects (which we
believe is unlike other members of its chemical class), the DEA classifies lenabasum as a Schedule I substance.

Schedule I controlled substances are pharmaceutical products subject to specific regulations under the CSA, that establishes, among
other  things,  certain  registration,  manufacturing  quotas,  security,  recordkeeping,  reporting,  import,  export  and  other  requirements
administered by the DEA. All parties responsible for the manufacturing, distribution and testing the drug in clinical studies must apply for
and obtain a license from the DEA before they are permitted to perform these activities with lenabasum. Furthermore, these parties must
have the security, control, recordkeeping, reporting and inventory mechanisms required by the DEA to prevent drug loss and diversion. All
licensed facilities are required to renew their registrations annually if they intend to continue to work with our drug. The DEA conducts
periodic inspections of certain registered establishments that handle controlled substances. We have been working with our manufacturers,
distributors,  exporters  and  clinical  sites  to  obtain  the  necessary  licenses  to  work  with  lenabasum.  The  parties  responsible  for  the
manufacturing,  distribution  and  export  of  lenabasum  have  already  applied  for  and  have  been  granted  DEA  licenses  and  a  number  of
institutions responsible for conducting our current clinical studies have also been granted DEA licenses

21

 
 
 
 
 
 
 
 
 
 
 
 
 
Individual  states  have  also  established  controlled  substance  laws  and  regulations.  Though  state-controlled  substances  laws  often
mirror  federal  law,  because  the  states  are  separate  jurisdictions,  they  may  separately  schedule  drugs,  as  well.  While  some  states
automatically  schedule  a  drug  based  on  federal  action,  other  states  schedule  drugs  through  rulemaking  or  a  legislative  action.  The
requirement for state registrations could also result in delay of the manufacturing, distribution of lenabasum or in the completion of our
current clinical studies. We and our manufacturing vendors and clinical sites must also obtain separate state registrations, permits or licenses
in order to be able to obtain, handle, and distribute controlled substances for clinical trials or commercial sale, and failure to meet applicable
regulatory requirements could lead to enforcement and sanctions by the states in addition to those from the DEA or otherwise arising under
federal law.

Third-Party Payer Coverage and Reimbursement

Significant uncertainty exists as to the coverage and reimbursement status of any of our drug candidates that ultimately may obtain
regulatory approval. In both the United States and foreign markets, our ability to commercialize our product candidates successfully, and to
attract commercialization partners for our product candidates, depends in significant part on the availability of adequate financial coverage
and  reimbursement  from  third-party  payers,  including,  in  the  United  States,  governmental  payers  such  as  the  Medicare  and  Medicaid
programs, managed care organizations, and private health insurers. Medicare is a federally funded program managed by the CMS, through
contractors and plans that develop certain coverage policies and process claims for certain healthcare items and services furnished to the
elderly and disabled. Medicaid is an insurance program for certain categories of patients whose income and assets fall below state defined
levels  and  who  are  otherwise  uninsured  that  is  both  federally  and  state  funded  and  managed  by  each  state.  The  federal  government  sets
general guidelines for Medicaid and each state creates specific laws and regulations that govern its individual program. Each payer has its
own process and standards for determining whether it will cover and reimburse a procedure or particular product. Private payers often rely
on  the  lead  of  the  governmental  payers  in  rendering  coverage  and  reimbursement  determinations.  Therefore,  achieving  favorable  CMS
coverage and reimbursement is usually a significant gating issue for successful introduction of a new product. The competitive position of
some  of  our  products  will  depend,  in  part,  upon  the  extent  of  coverage  and  adequate  reimbursement  for  such  products  and  for  the
procedures in which such products are used. Prices at which we or our customers seek reimbursement for our product candidates can be
subject to challenge, reduction or denial by the government and other payers.

The United States Congress and state legislatures may, from time to time, propose and adopt initiatives aimed at cost containment,
which could impact our ability to sell our product candidates profitably. For example, the two-year spending law signed by the President of
United States on February 9, 2018 (the “2018 Spending Law”) includes a provision raising the manufacturer discount to 70% in 2019 in the
Medicare Part D coverage gap, also known as the “donut hole.” Under prior law, manufacturers were required to provide a 50% discount on
prescription drugs purchased in the donut hole. Manufacturers of branded drugs will face much higher liabilities from donut hole payments
beginning in 2019, estimated at multiple billions of dollars for some of the largest companies.

The  cost  of  pharmaceuticals  continues  to  generate  substantial  governmental  and  third-party  payer  interest.  We  expect  that  the
pharmaceutical industry will experience pricing pressures due to the trend toward managed healthcare, the increasing influence of managed
care  organizations  and  additional  legislative  proposals.  Our  results  of  operations  could  be  adversely  affected  by  current  and  future
healthcare reforms.

Some  third-party  payers  also  require  pre-approval  of  coverage  for  new  or  innovative  devices  or  drug  therapies  before  they  will
reimburse healthcare providers that use such therapies. While we cannot predict whether any proposed cost-containment measures will be
adopted or otherwise implemented in the future, the announcement or adoption of these proposals could have a material adverse effect on
our ability to obtain adequate prices for our product candidates and operate profitably.

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

Employees

We  had  47  full  time  employees  at  December  31,  2017.  All  of  our  employees  are  engaged  in  administration,  finance,  clinical,
manufacturing, regulatory and business development functions. We believe our relations with our employees are good. We anticipate that
the number of employees will grow as we continue to develop our product candidates. In addition, we utilize and will continue to utilize
consultants,  clinical  research  organizations  and  third  parties  to  perform  our  pre-clinical  studies,  clinical  studies,  manufacturing  and
regulatory functions.

22

 
 
 
 
 
 
 
 
 
 
 
 
 
Emerging Growth Company

We are an “emerging growth company,” as defined in the Jumpstart Our Business Startups Act of 2012, or the JOBS Act. We will
remain an emerging growth company until the earlier of (1) January 1, 2020, (2) the last day of the first fiscal year in which our annual
gross  revenues  exceed  $1.07  billion,  (3)  the  date  on  which  we  become  a  “large  accelerated  filer”  as  defined  in  Rule  12b-2  under  the
Securities Exchange Act of 1934, as amended, which would occur if the market value of our common stock that is held by non-affiliates
exceeds $700 million as of the last business day of our most recently completed second fiscal quarter or (4) the date on which we have
issued more than $1 billion in non-convertible debt during the preceding three-year period.

For  as  long  as  we  remain  an  “emerging  growth  company,”  we  may  take  advantage  of  certain  exemptions  from  various  reporting
requirements  that  are  applicable  to  public  companies  that  are  not  “emerging  growth  companies”  including,  but  not  limited  to,  not  being
required  to  comply  with  the  auditor  attestation  requirements  of  Section  404  of  the  Sarbanes-Oxley Act,  reduced  disclosure  obligations
regarding  executive  compensation  and  financial  statements  in  our  periodic  reports  and  proxy  statements,  and  exemptions  from  the
requirements of holding a nonbinding advisory vote to approve executive compensation and shareholder approval of any golden parachute
payments  not  previously  approved.  We  are  choosing  to  “opt  out”  of  the  extended  transition  periods  available  under  the  JOBS Act  for
complying with new or revised accounting standards, and intend to take advantage of the other reporting exemptions until we are no longer
an “emerging growth company.”

Corporate Information

Corbus Pharmaceuticals, Inc. (formerly known as JB Therapeutics Inc.), was incorporated on April 24, 2009 under the laws of the
State of Delaware. On April 11, 2014, JB Therapeutics, Inc. completed a merger with Corbus Pharmaceuticals Holdings, Inc. and changed
its  name  to  Corbus  Pharmaceuticals,  Inc.  Upon  the  consummation  of  the  merger,  Corbus  Pharmaceuticals,  Inc.  became  a  wholly  owned
subsidiary of Corbus Pharmaceuticals Holdings, Inc. which continues to operate the business of Corbus Pharmaceuticals, Inc. Our principal
executive offices are located at 500 River Ridge Drive, Norwood, Massachusetts 02062, and our telephone number is (619) 963-0100. Our
website address is www.corbuspharma.com.

We make available free of charge on or through the Investor Relations link on our website,  www.corbuspharma.com, access to press
releases and investor presentations, as well as all materials that we file electronically with the SEC, including our annual report on Form
10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports, filed or furnished pursuant to Section
13(a) or 15(d) of the Exchange Act as soon as reasonably practicable after electronically filing such materials with, or furnishing them to,
the SEC. During the period covered by this Form 10-K, we made all such materials available through our website as soon as reasonably
practicable  after  filing  such  materials  with  the  SEC.  You  may  also  read  and  copy  any  materials  filed  by  us  with  the  SEC  at  the  SEC’s
Public  Reference  Room  at  100  F  Street,  N.E.,  Washington,  D.C.  20549,  and  you  may  obtain  information  on  the  operation  of  the  Public
Reference  Room  by  calling  the  SEC  in  the  United  States  at  1-800-SEC-0330.  In  addition,  the  SEC  maintains  an  Internet  website,
www.sec.gov, that contains reports, proxy and information statements and other information that we file electronically with the SEC.

23

 
 
 
 
 
 
 
 
 
 
Item 1A. RISK FACTORS

An investment in our common stock is speculative and illiquid and involves a high degree of risk including the risk of a loss of your entire
investment. You should carefully consider the risks and uncertainties described below and the other information contained in this report
and  our  other  reports  filed  with  the  Securities  and  Exchange  Commission.  The  risks  set  forth  below  are  not  the  only  ones  facing  us.
Additional risks and uncertainties may exist that could also adversely affect our business, operations and financial condition. If any of the
following  risks  actually  materialize,  our  business,  financial  condition  and/or  operations  could  suffer.  In  such  event,  the  value  of  our
common stock could decline, and you could lose all or a substantial portion of the money that you pay for our common stock.

Risk Related to our Company and our Business

Risks Related to Our Financial Position and Need for Capital

We are a clinical stage pharmaceutical company with a limited operating history.

We are a clinical stage pharmaceutical company with a limited operating history. We have to complete clinical studies and receive
regulatory approval of a New Drug Application, or NDA, before commercial sales of a product can commence. The likelihood of success
of  our  business  plan  must  be  considered  in  light  of  the  problems,  substantial  expenses,  difficulties,  complications  and  delays  frequently
encountered in connection with developing and expanding early-stage businesses and the regulatory and competitive environment in which
we operate. Pharmaceutical product development is a highly speculative undertaking, involves a substantial degree of risk and is a capital-
intensive business.

Accordingly, you should consider our prospects in light of the costs, uncertainties, delays and difficulties frequently encountered
by  companies  in  the  early  stages  of  development,  especially  clinical  pharmaceutical  companies  such  as  ours.  Potential  investors  should
carefully  consider  the  risks  and  uncertainties  that  a  company  with  a  limited  operating  history  will  face.  In  particular,  potential  investors
should consider that we cannot assure you that we will be able to:

● successfully implement or execute our current business plan, and we cannot assure you that our business plan is sound;

● successfully manufacture our clinical product and establish commercial drug supply;

●  obtain  Drug  Enforcement Administration,  or  DEA,  licenses  necessary  for  the  manufacturing  of  lenabasum  and  for  evaluating

lenabasum in our clinical trials;

● successfully complete the clinical trials necessary to obtain regulatory approval for the marketing of lenabasum;

● secure market exclusivity and/or adequate intellectual property protection for lenabasum;

● attract and retain an experienced management and advisory team;

● secure acceptance of lenabasum in the medical community and with third party payors and consumers;

● launch commercial sales of lenabasum, whether alone or in collaboration with others; and

● raise sufficient funds in the capital markets to effectuate our business plan.

If we cannot successfully execute any one of the foregoing, our business may not succeed and your investment will be adversely

affected.

We have incurred operating losses in each year since our inception and expect to continue to incur substantial losses for the foreseeable
future. We may never become profitable or, if we achieve profitability, be able to sustain profitability.

We expect to incur substantial expenses without corresponding revenues unless and until we are able to obtain regulatory approval
and successfully commercialize lenabasum. We have been engaged in developing lenabasum since 2009. To date, we have not generated
any  revenue  from  lenabasum  and  we  expect  to  incur  significant  expense  to  complete  our  clinical  program  for  lenabasum  in  the  United
States and elsewhere. We may never be able to obtain regulatory approval for the marketing of lenabasum in any indication in the United
States or internationally. Even if we are able to commercialize lenabasum or any other product candidate, there can be no assurance that we
will generate significant revenues or ever achieve profitability.

24

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Our  net  losses  for  the  years  ended  December  31,  2017,  2016  and  2015  were  approximately  $32,422,000,  $19,999,000  and

$8,851,000, respectively. As of December 31, 2017, we had an accumulated deficit of approximately $65,698,000.

If we were to obtain FDA approval for lenabasum, we would expect that our research and development expenses will continue to
increase  as  we  advance  clinical  trials  for  indications  for  the  treatment  of  cystic  fibrosis,  systemic  sclerosis,  DM  and  systemic  lupus
erythematosus, or SLE. We may elect to pursue FDA approval for lenabasum in other indications, which will result in significant additional
research and development expenses. As a result, we expect to continue to incur substantial losses for the foreseeable future, and these losses
will increase. We are uncertain when or if we will be able to achieve or sustain profitability. If we achieve profitability in the future, we
may not be able to sustain profitability in subsequent periods. Failure to become and remain profitable would impair our ability to sustain
operations and adversely affect the price of our common stock and our ability to raise capital.

Our cash or cash equivalents will only fund our operations for a limited time and we will need to raise additional capital to support our
development and commercialization efforts.

We are currently operating at a loss and expect our operating costs will increase significantly as we incur further costs related to
the  clinical  trials  for  lenabasum.  As  of  December  31,  2017,  our  consolidated  cash  and  cash  equivalents  balance  was  approximately
$62.5 million. On January 5, 2018, we entered into a Controlled Equity OfferingSM Sales Agreement (“January 2018 Sales Agreement”)
with  Cantor  Fitzgerald  &  Co.  (“Cantor  Fitzgerald”)  pursuant  to  which  Cantor  Fitzgerald  is  serving  as  our  sales  agent  to  sell  up  to  $50
million of shares of our common stock through an “at the market offering,” of which we have sold 1,500,000 shares for net proceeds of
$11.3 million to date. On January 26, 2018, we entered into the Cystic Fibrosis Program Related Investment Agreement (the “Investment
Agreement”) with the Cystic Fibrosis Foundation (“CFF”), a non-profit drug discovery and development corporation, pursuant to which we
received a development award for up to $25 million in funding (the “2018 CFF Award”) to support a Phase 2b Clinical Trial (the “Phase 2b
Clinical Trial”) of lenabasum in patients with cystic fibrosis, of which we received $6.25 million to date. The remainder of the Award is
payable to us incrementally upon the achievement of the remaining milestones related to the progress of the Phase 2b Clinical Trial, as set
forth in the Investment Agreement.

We expect our cash and cash equivalents of approximately $62.5 million at December 31, 2017 together with the $11.3 million of
net proceeds received to date from the January 2018 Sales Agreement and the up to $25 million of proceeds that we expect to receive under
the  2018  CFF Award,  of  which  we  have  received  $6.25  million  to  date,  to  be  sufficient  to  meet  our  operating  and  capital  requirements
through the end of the fourth quarter of 2019, based on current planned expenditures.

Other than the January 2018 Sales Agreement and the Investment Agreement, we do not currently have any arrangements or credit
facilities in place as a source of funds, and there can be no assurance that we will be able to raise sufficient additional capital on acceptable
terms, or at all, including pursuant to the January 2018 Sales Agreement due to limiting terms contained therein and sales thereunder being
subject to market conditions and pursuant to the Investment Agreement due to the dependency of our receiving future payments thereunder
on our achieving certain milestones described therein. If we are not successful in raising additional capital, we may not be able to continue
as  a  going  concern.  We  may  seek  additional  capital  through  a  combination  of  private  and  public  equity  offerings,  debt  financings  and
strategic  collaborations.  Debt  financing,  if  obtained,  may  involve  agreements  that  include  covenants  limiting  or  restricting  our  ability  to
take specific actions, such as incurring additional debt, and could increase our expenses and require that our assets secure such debt.

Equity financing, if obtained, could result in dilution to our then existing stockholders and/or require such stockholders to waive
certain rights and preferences. If such financing is not available on satisfactory terms, or is not available at all, we may be required to delay,
scale back or eliminate the development of business opportunities and our operations and financial condition may be materially adversely
affected.  We  can  provide  no  assurances  that  any  additional  sources  of  financing  will  be  available  to  us  on  favorable  terms,  if  at  all.  In
addition,  if  we  are  unable  to  secure  sufficient  capital  to  fund  our  operations,  we  may  choose  to  pursue,  as  an  alternative,  strategic
collaborations that could require us to share commercial rights to lenabasum with third parties in ways that we currently do not intend or on
terms that may not be favorable to us. If we choose to pursue additional indications and/or geographies for lenabasum or otherwise expand
more rapidly than we presently anticipate we may also need to raise additional capital sooner than expected.

25

 
 
 
 
 
 
 
 
 
 
 
Risks Related to Product Development, Regulatory Approval, Manufacturing and Commercialization

We  depend  entirely  on  the  success  of  lenabasum.  If  we  are  unable  to  generate  revenues  from  lenabasum,  our  ability  to  create
stockholder value will be limited.

Our  only  product  candidate  currently  is  lenabasum,  for  which  we  have  completed  Phase  1  safety  studies  and  are  evaluating  in
subsequent clinical studies. We do not generate revenues from any FDA approved drug products and have no other product candidates in
development. There is no guarantee that our clinical trials  will  be  successful  or  that  we  will  continue  with  clinical  studies  to  support  an
approval from the FDA for any indication. We note that most drug candidates never reach the clinical development stage and even those
that do have only a small chance of successfully completing clinical development and gaining regulatory approval. Therefore, our business
currently  depends  entirely  on  the  successful  development,  regulatory  approval  and  commercialization  of  lenabasum,  which  may  never
occur.

If we are not able to obtain any required regulatory approvals for lenabasum, we will not be able to commercialize our only product
candidate and our ability to generate revenue will be limited.

Our  clinical  trials  may  be  unsuccessful,  which  would  materially  harm  our  business.  Even  if  our  ongoing  clinical  trials  are
successful,  we  will  be  required  to  conduct  additional  clinical  trials  to  establish  lenabasum’s  safety  and  efficacy,  before  a  New  Drug
Application, or NDA, can be filed with the FDA for marketing approval of lenabasum.

Clinical testing is expensive, is difficult to design and implement, can take many years to complete and is uncertain as to outcome.
Success in early phases of pre-clinical and clinical trials does not ensure that later clinical trials will be successful, and interim results of a
clinical trial do not necessarily predict final results. A failure of one or more of our clinical trials can occur at any stage of testing. We may
experience numerous unforeseen events during, or as a result of, the clinical trial process that could delay or prevent our ability to receive
regulatory  approval  or  commercialize  lenabasum.  The  research,  testing,  manufacturing,  labeling,  packaging,  storage,  approval,  sale,
marketing, advertising and promotion, pricing, export, import and distribution of drug products are subject to extensive regulation by the
FDA and other regulatory authorities in the United States and other countries, which regulations differ from country to country. We are not
permitted to market lenabasum as a prescription pharmaceutical product in the United States until we receive approval of an NDA from the
FDA  or  comparable  regulatory  agencies  for  sales  in  foreign  markets  until  we  receive  the  requisite  approval  from  such  countries.  In  the
United States, the FDA generally requires the completion of clinical trials of each drug to establish its safety and efficacy and extensive
pharmaceutical development to ensure its quality before an NDA is approved. Regulatory authorities in other jurisdictions impose similar
requirements. Of the large number of drugs in development, only a small percentage result in the submission of an NDA to the FDA and
even fewer are eventually approved for commercialization. We have never submitted an NDA to the FDA or comparable applications to
other  regulatory  authorities.  If  our  development  efforts  for  lenabasum,  including  regulatory  approval,  are  not  successful  for  its  planned
indications, or if adequate demand for lenabasum is not generated, our business will be harmed.

Receipt of necessary regulatory approval is subject to a number of risks, including the following:

● the FDA or comparable foreign regulatory authorities or institutional review boards, or IRBs, may disagree with the design or

implementation of our clinical trials;

● we may not be able to provide acceptable evidence of lenabasum’s safety and efficacy;

● the results of our clinical trials may not be satisfactory or may not meet the level of statistical or clinical significance required by

the FDA, European Medicines Agency, or EMA, or other comparable foreign regulatory authorities for marketing approval;

● the dosing of lenabasum in a particular clinical trial may not be at an optimal level;

● patients in our clinical trials may suffer adverse effects for reasons that may or may not be related to lenabasum;

● the data collected from clinical trials may not be sufficient to support the submission of an NDA or other submission or to obtain

regulatory approval in the United States or elsewhere;

●  the  FDA  or  comparable  foreign  regulatory  authorities  may  fail  to  approve  the  manufacturing  processes  or  facilities  of  third-

party manufacturers with which we contract for clinical and commercial supplies; and

●  the  approval  policies  or  regulations  of  the  FDA  or  comparable  foreign  regulatory  authorities  may  significantly  change  in  a

manner rendering our clinical data insufficient for approval.

Failure to obtain regulatory approval for lenabasum for the foregoing or any other reasons will prevent us from commercializing
this product candidate as a prescription product, and our ability to generate revenue will be materially impaired. We cannot guarantee that
regulators  will  agree  with  our  assessment  of  the  results  of  our  clinical  trials  or  that  such  trials  will  be  considered  by  regulators  to  have
shown safety or efficacy of our product candidates. The FDA, EMA and other regulators have substantial discretion in the approval process
and may refuse to accept any application or may decide that our data is insufficient for approval and require additional clinical trials, or pre-
clinical or other studies. In addition, varying interpretations of the data obtained from pre-clinical and clinical testing could delay, limit or
prevent regulatory approval of a product candidate.

26

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We have only limited experience in filing the applications necessary to gain regulatory approvals and expect to rely on consultants
and  third  party  contract  research  organizations,  or  CROs,  with  expertise  in  this  area  to  assist  us  in  this  process.  Securing  FDA  approval
requires  the  submission  of  pre-clinical,  clinical  and/or  pharmacokinetic  data,  information  about  product  manufacturing  processes  and
inspection of facilities and supporting information to the FDA for each therapeutic indication to establish a product candidate’s safety and
efficacy for each indication. Lenabasum may prove to have undesirable or unintended side effects, toxicities or other characteristics that
may preclude our obtaining regulatory approval or prevent or limit commercial use with respect to one or all intended indications.

The process of obtaining regulatory approvals is expensive, often takes many years, if approval is obtained at all, and can vary
substantially  based  upon,  among  other  things,  the  type,  complexity  and  novelty  of  the  product  candidates  involved,  the  jurisdiction  in
which regulatory approval is sought and the substantial discretion of the regulatory authorities. Changes in the regulatory approval policy
during  the  development  period,  changes  in  or  the  enactment  of  additional  statutes  or  regulations,  or  changes  in  regulatory  review  for  a
submitted  product  application  may  cause  delays  in  the  approval  or  rejection  of  an  application.  Regulatory  approval  obtained  in  one
jurisdiction does not necessarily mean that a product candidate will receive regulatory approval in all jurisdictions in which we may seek
approval, but the failure to obtain approval in one jurisdiction may negatively impact our ability to seek approval in a different jurisdiction.
Failure  to  obtain  regulatory  marketing  approval  for  lenabasum  in  any  indication  will  prevent  us  from  commercializing  the  product
candidate, and our ability to generate revenue will be materially impaired.

Clinical drug development involves a lengthy and expensive process with an uncertain outcome, and results of earlier studies and trials
may not be predictive of future trial results.

Clinical testing is expensive and can take many years to complete, and its outcome is inherently uncertain. Failure can occur at any
time during the clinical trial process. The results of pre-clinical studies and early clinical trials may not be predictive of the results of later-
stage clinical trials. We cannot assure you that the FDA will view the results as we do or that any future trials of lenabasum will achieve
positive results. Product candidates in later stages of clinical trials may fail to show the desired safety and efficacy traits despite having
progressed  through  pre-clinical  studies  and  initial  clinical  trials. A  number  of  companies  in  the  pharmaceutical  industry  have  suffered
significant setbacks in advanced clinical trials due to lack of efficacy or adverse safety profiles, notwithstanding promising results in earlier
trials. Any future clinical trial results for lenabasum may not be successful.

In addition, a number of factors could contribute to a lack of favorable safety and efficacy results for lenabasum. For example,
such trials could result in increased variability due to varying site characteristics, such as local standards of care, differences in evaluation
period and surgical technique, and due to varying patient characteristics, including demographic factors and health status.

Lenabasum is our only product candidate in development. If we fail to successfully commercialize lenabasum, we may need to acquire
additional product candidates and our business will be adversely affected.

We  have  never  commercialized  any  product  candidates  and  do  not  have  any  other  compounds  in  pre-clinical  testing,  lead
optimization or lead identification stages beyond lenabasum. We cannot be certain that lenabasum will prove to be sufficiently effective and
safe to meet applicable regulatory standards for any indication. If we fail to successfully commercialize lenabasum as a treatment for cystic
fibrosis, systemic sclerosis, DM, SLE or any other indication, whether as a stand-alone therapy or in combination with other treatments, our
business would be adversely affected.

Even  if  we  receive  regulatory  approval  for  lenabasum,  we  still  may  not  be  able  to  successfully  commercialize  this  product,  and  the
revenue that we generate from its sales, if any, may be limited.

If  approved  for  marketing,  the  commercial  success  of  lenabasum  will  depend  upon  its  acceptance  by  the  medical  community,
including physicians, patients and health care payors. The degree of market acceptance of lenabasum will depend on a number of factors,
including:

● demonstration of clinical safety and efficacy;

● relative convenience, pill burden and ease of administration;

● the prevalence and severity of any adverse effects;

27

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

● safety, tolerability and efficacy of lenabasum compared to competing products;

● the introduction of any new products that may in the future become available to treat indications for which lenabasum may be

approved;

● new procedures or methods of treatment that may reduce the incidences of any of the indications in which lenabasum may show

utility

● pricing and cost-effectiveness;

● the inclusion or omission of lenabasum in applicable treatment guidelines;

● the effectiveness of our or any future collaborators’ sales and marketing strategies;

● limitations or warnings contained in FDA-approved labeling;

●  our  ability  to  obtain  and  maintain  sufficient  third-party  coverage  or  reimbursement  from  government  health  care  programs,

including Medicare and Medicaid, private health insurers and other third-party payors; and

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

If lenabasum is approved, but does not achieve an adequate level of acceptance by physicians, health care payors and patients, we
may  not  generate  sufficient  revenue  and  we  may  not  be  able  to  achieve  or  sustain  profitability.  Our  efforts  to  educate  the  medical
community and third-party payors on the benefits of lenabasum may require significant resources and may never be successful.

In  addition,  even  if  we  obtain  regulatory  approvals,  the  timing  or  scope  of  any  approvals  may  prohibit  or  reduce  our  ability  to
commercialize lenabasum successfully. For example, if the approval process takes too long, we may miss market opportunities and give
other companies the ability to develop competing products or establish market dominance. Any regulatory approval we ultimately obtain
may  be  limited  or  subject  to  restrictions  or  post-approval  commitments  that  render  lenabasum  not  commercially  viable.  For  example,
regulatory authorities may approve lenabasum for fewer or more limited indications than we request, may not approve the price we intend
to  charge  for  lenabasum,  may  grant  approval  contingent  on  the  performance  of  costly  post-marketing  clinical  trials,  or  may  approve
lenabasum  with  a  label  that  does  not  include  the  labeling  claims  necessary  or  desirable  for  the  successful  commercialization  of  that
indication.  Further,  the  FDA  or  comparable  foreign  regulatory  authorities  may  place  conditions  on  approvals,  such  as  risk  management
plans and a Risk Evaluation and Mitigation Strategy, or REMS, to assure the safe use of the drug. If the FDA concludes a REMS is needed,
the sponsor of the NDA must submit a proposed REMS; the FDA will not approve the NDA without an approved REMS, if required. A
REMS  could  include  medication  guides,  physician  communication  plans,  or  elements  to  assure  safe  use,  such  as  restricted  distribution
methods, patient registries and other risk minimization tools. The FDA may also require a REMS for an approved product when new safety
information emerges. Any of these limitations on approval or marketing could restrict the commercial promotion, distribution, prescription
or dispensing of lenabasum. Moreover, product approvals may be withdrawn for non-compliance with regulatory standards or if problems
occur  following  the  initial  marketing  of  the  product. Any  of  the  foregoing  scenarios  could  materially  harm  the  commercial  success  of
lenabasum.

Even if we obtain marketing approval for lenabasum, we will be subject to ongoing obligations and continued regulatory review, which
may result in significant additional expense. Additionally, lenabasum could be subject to labeling and other restrictions and withdrawal
from the market and we may be subject to penalties if we fail to comply with regulatory requirements or if we experience unanticipated
problems with lenabasum.

Even  if  we  obtain  United  States  regulatory  approval  of  lenabasum  for  an  indication,  the  FDA  may  still  impose  significant
restrictions  on  its  indicated  uses  or  marketing  or  the  conditions  of  approval,  or  impose  ongoing  requirements  for  potentially  costly  and
time-consuming  post-approval  studies,  including  Phase  4  clinical  trials,  and  post-market  surveillance  to  monitor  safety  and  efficacy.
Lenabasum will also be subject to ongoing regulatory requirements governing the manufacturing, labeling, packaging, storage, distribution,
safety  surveillance,  advertising,  promotion,  recordkeeping  and  reporting  of  adverse  events  and  other  post-market  information.  These
requirements include registration with the FDA, continued compliance with current Good Clinical Practices regulations, or cGCPs, for any
clinical  trials  that  we  conduct  post-approval,  continued  compliance  with  the  CSA  and  ongoing  review  by  the  DEA.  In  addition,
manufacturers of drug products and their facilities are subject to continual review and periodic inspections by the FDA and other regulatory
authorities for compliance with current Good Manufacturing Practices, or cGMP, requirements relating to quality control, quality assurance
and corresponding maintenance of records and documents.

28

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
With respect to sales and marketing activities by us or any future partner, advertising and promotional materials must comply with
FDA rules in addition to other applicable federal, state and local laws in the United States and similar legal requirements in other countries.
In the United States, the distribution of product samples to physicians must comply with the requirements of the U.S. Prescription Drug
Marketing Act. Application  holders  must  obtain  FDA  approval  for  product  and  manufacturing  changes,  depending  on  the  nature  of  the
change.  We  may  also  be  subject,  directly  or  indirectly  through  our  customers  and  partners,  to  various  fraud  and  abuse  laws,  including,
without limitation, the U.S. Anti-Kickback Statute, U.S. False Claims Act, and similar state laws, which impact, among other things, our
proposed  sales,  marketing,  and  scientific/educational  grant  programs.  If  we  participate  in  the  U.S.  Medicaid  Drug  Rebate  Program,  the
Federal Supply Schedule of the U.S. Department of Veterans Affairs, or other government drug programs, we will be subject to complex
laws and regulations regarding reporting and payment obligations. All of these activities are also potentially subject to U.S. federal and state
consumer protection and unfair competition laws. Similar requirements exist in many of these areas in other countries.

In  addition,  if  lenabasum  is  approved  for  an  indication,  our  product  labeling,  advertising  and  promotion  would  be  subject  to
regulatory  requirements  and  continuing  regulatory  review.  The  FDA  strictly  regulates  the  promotional  claims  that  may  be  made  about
prescription products. In particular, a product may not be promoted for uses that are not approved by the FDA as reflected in the product’s
approved  labeling.  If  we  receive  marketing  approval  for  lenabasum,  physicians  may  nevertheless  legally  prescribe  our  products  to  their
patients in a manner that is inconsistent with the approved label. However, if we are found to have promoted such off-label uses, we may
become  subject  to  significant  liability  and  government  fines.  The  federal  government  has  levied  large  civil  and  criminal  fines  against
companies for alleged improper promotion and has enjoined several companies from engaging in off-label promotion. The FDA has also
requested  that  companies  enter  into  consent  decrees  of  permanent  injunctions  under  which  specified  promotional  conduct  is  changed  or
curtailed.

If  we  or  a  regulatory  agency  discover  previously  unknown  problems  with  a  product,  such  as  adverse  events  of  unanticipated
severity or frequency or problems with the facility where the product is manufactured, or if we or our manufacturers fail to comply with
applicable regulatory requirements, we may be subject to the following administrative or judicial sanctions:

●  restrictions  on  the  marketing  or  manufacturing  of  the  product,  withdrawal  of  the  product  from  the  market,  or  voluntary  or

mandatory product recalls;

● issuance of warning letters or untitled letters;

● injunctions or the imposition of civil or criminal penalties or monetary fines;

● suspension of any ongoing clinical trials;

●  refusal  to  approve  pending  applications  or  supplements  to  approved  applications  filed  by  us,  or  suspension  or  revocation  of

product license approvals;

● suspension of, or imposition of restrictions on, operations, including costly new manufacturing requirements; or

● product seizure or detention or refusal to permit the import or export of product.

The occurrence of any event or penalty described above may inhibit our ability to commercialize lenabasum and generate revenue.
Adverse  regulatory  action,  whether  pre-  or  post-approval,  can  also  potentially  lead  to  product  liability  claims  and  increase  our  product
liability exposure.

We  currently  have  no  sales  and  marketing  organization.  If  we  are  unable  to  secure  a  sales  and  marketing  partner  or  establish
satisfactory sales and marketing capabilities, we may not successfully commercialize lenabasum.

At present, we have no sales or marketing personnel. In order to commercialize products that are approved for commercial sales,
we  must  either  collaborate  with  third  parties  that  have  such  commercial  infrastructure  or  develop  our  own  sales  and  marketing
infrastructure. If we are not successful in entering into appropriate collaboration arrangements, or recruiting sales and marketing personnel
or in building a sales and marketing infrastructure, we will have difficulty successfully commercializing lenabasum, which would adversely
affect our business, operating results and financial condition.

29

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We may not be able to enter into collaboration agreements on terms acceptable to us or at all. In addition, even if we enter into
such relationships, we may have limited or no control over the sales, marketing and distribution activities of these third parties. Our future
revenues may depend heavily on the success of the efforts of these third parties. If we elect to establish a sales and marketing infrastructure
we  may  not  realize  a  positive  return  on  this  investment.  In  addition,  we  will  have  to  compete  with  established  and  well-funded
pharmaceutical and biotechnology companies to recruit, hire, train and retain sales and marketing personnel. Factors that may inhibit our
efforts to commercialize lenabasum without strategic partners or licensees include:

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

● the inability of sales personnel to obtain access to or persuade adequate numbers of physicians to prescribe lenabasum;

● the lack of complementary products to be offered by sales personnel, which may put us at a competitive disadvantage relative to

companies with more extensive product lines; and

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

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

The  biotechnology  and  pharmaceutical  industries  are  intensely  competitive  and  subject  to  rapid  and  significant  technological
change.  We  have  competitors  in  a  number  of  jurisdictions,  many  of  which  have  substantially  greater  name  recognition,  commercial
infrastructures  and  financial,  technical  and  personnel  resources  than  we  have.  Established  competitors  may  invest  heavily  to  quickly
discover  and  develop  novel  compounds  that  could  make  lenabasum  obsolete  or  uneconomical. Any  new  product  that  competes  with  an
approved  product  may  need  to  demonstrate  compelling  advantages  in  efficacy,  cost,  convenience,  tolerability  and  safety  to  be
commercially successful. Other competitive factors, including generic competition, could force us to lower prices or could result in reduced
sales. In addition, new products developed by others could emerge as competitors to lenabasum. If we are not able to compete effectively
against our current and future competitors, our business will not grow and our financial condition and operations will suffer.

Recently enacted and future legislation may increase the difficulty and cost for us to obtain marketing approval of and commercialize
lenabasum and affect the prices we may obtain.

In the United States and some foreign jurisdictions, there have been a number of legislative and regulatory changes and proposed
changes regarding the healthcare system that could prevent or delay marketing approval for lenabasum, restrict or regulate post-approval
activities and affect our ability to profitably sell lenabasum. Legislative and regulatory proposals have been made to expand post-approval
requirements  and  restrict  sales  and  promotional  activities  for  pharmaceutical  products.  We  do  not  know  whether  additional  legislative
changes will be enacted, or whether the FDA regulations, guidance or interpretations will be changed, or what the impact of such changes
on  the  marketing  approvals  of  lenabasum,  if  any,  may  be.  In  addition,  increased  scrutiny  by  the  U.S.  Congress  of  the  FDA’s  approval
process may significantly delay or prevent marketing approval, as well as subject us to more stringent product labeling and post-marketing
testing and other requirements.

In  the  United  States,  under  the  Medicare  Modernization Act,  or  MMA,  Medicare  Part  D  provides  coverage  to  the  elderly  and
disabled for outpatient prescription drugs through prescription drug plans offered by private insurers. The MMA also authorizes Medicare
Part D prescription drug plans to use formularies where they can limit the number of drugs that will be covered in any therapeutic class.
The Part D plans use their formulary leverage to negotiate rebates and other price concessions from drug manufacturers. Also under the
MMA, Medicare Part B provides coverage to the elderly and disabled for physician-administered drugs on the basis of the drug’s average
sales price, a price that is calculated according to regulatory requirements and that the manufacturer reports to Medicare quarterly.

Both  Congress  and  the  Centers  for  Medicare  &  Medicaid  Services  (CMS),  the  agency  that  administers  the  Medicare  program,
from time to time consider legislation, regulations, or other initiatives to reduce drug costs under Medicare Parts B and D. For example,
under the 2010 Affordable Care Act, drug manufacturers are required to provide a 50% discount on prescriptions for branded drugs filled
while the beneficiary is in the Medicare Part D coverage gap, also known as the “donut hole.” Under the 2018 Spending Law, the discount
will increase to 70% in 2019. There have been legislative proposals to repeal the ‘non-interference” provision of the MMA to allow CMS to
leverage the Medicare market share to negotiate larger Part D rebates. Further cost reduction efforts could decrease the coverage and price
that we receive for lenabasum and could seriously harm our business. Private payors often follow Medicare coverage policy and payment
limitations  in  setting  their  own  reimbursement  rates,  and  any  reduction  in  reimbursement  under  the  Medicare  program  may  result  in  a
similar reduction in payments from private payors.

The 2010 Affordable Care Act is intended to broaden access to health insurance and reduce or constrain the growth of healthcare
spending. Further, the Affordable Care Act imposes a significant annual fee on companies that manufacture or import branded prescription
drug products. It also increased the amount of the rebates drug manufacturers must pay to state Medicaid programs, required that Medicaid
rebates  be  paid  on  managed  Medicaid  utilization,  and  increased  the  additional  rebate  on  “line  extensions”  (such  as  extended  release
formulations)  of  solid  oral  dosage  forms  of  branded  products.  The  law  also  contains  substantial  provisions  affecting  fraud  and  abuse
compliance and transparency, which may require us to modify our business practices with  healthcare  practitioners,  and  incur  substantial
costs to ensure compliance.

30

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The President and the majority party in both Houses of the U.S. Congress have indicated their desire to repeal the Affordable Care
Act. It is unclear whether, when and how that repeal will be effectuated and what the effect on the healthcare sector will be. In addition to
the potential repeal of the Affordable Care Act, there are indications that the Medicaid program may be restructured, which could lead to
revisions in Medicaid coverage for prescription drugs. While we are unable to predict what legislation, if any, may potentially be enacted, to
the extent that future changes affect how our product candidates could be paid for and/or reimbursed by the government and private payers,
our business could be adversely affected.

In addition, other legislative changes have been proposed and adopted in the United States since the ACA was enacted. For example, the
Budget Control Act of 2011 included, among other things, provisions that have led to 2% across-the-board reductions in Medicare payment
amounts.  Several  states  have  adopted  or  are  considering  adopting  laws  that  require  pharmaceutical  companies  to  provide  notice  prior  to
raising  prices  and  to  justify  price  increases.  We  expect  that  additional  healthcare  reform  measures  will  be  adopted  in  the  future,  any  of
which  could  limit  the  amounts  that  federal  and  state  governments  will  pay  for  healthcare  products  and  services,  and  in  turn  could
significantly reduce the projected value of certain development projects and reduce our profitability.

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

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

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

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

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

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

● import or export licensing requirements;

● longer accounts receivable collection times;

● longer lead times for shipping;

● language barriers for technical training;

● reduced protection of intellectual property rights in some foreign countries;

● foreign currency exchange rate fluctuations; and

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

Foreign sales of lenabasum could also be adversely affected by the imposition of governmental controls, political and economic

instability, trade restrictions and changes in tariffs, any of which may adversely affect our results of operations.

31

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
If we market lenabasum in a manner that violates healthcare fraud and abuse laws, or if we violate government price reporting laws,
we may be subject to civil or criminal penalties.

The  FDA  enforces  laws  and  regulations  which  require  that  the  promotion  of  pharmaceutical  products  be  consistent  with  the
approved prescribing information. While physicians may prescribe an approved product for a so-called “off label” use, it is unlawful for a
pharmaceutical company to promote its products in a manner that is inconsistent with its approved label and any company which engages in
such conduct may be subject to significant liability. Similarly, industry codes in the European Union and other foreign jurisdictions prohibit
companies  from  engaging  in  off-label  promotion  and  regulatory  agencies  in  various  countries  enforce  violations  of  the  code  with  civil
penalties. While we intend to ensure that our promotional materials are consistent with our label, regulatory agencies may disagree with our
assessment and may issue untitled letters, warning letters or may institute other civil or criminal enforcement proceedings. In addition to
FDA restrictions on marketing of pharmaceutical products, several other types of state and federal healthcare fraud and abuse laws have
been  applied  in  recent  years  to  restrict  certain  marketing  practices  in  the  pharmaceutical  industry.  These  laws  include  the  U.S. Anti-
Kickback  Statute,  U.S.  False  Claims Act  and  similar  state  laws.  Because  of  the  breadth  of  these  laws  and  the  narrowness  of  the  safe
harbors, it is possible that some of our business activities could be subject to challenge under one or more of these laws.

The  U.S. Anti-Kickback  Statute  prohibits,  among  other  things,  knowingly  and  willfully  offering,  paying,  soliciting  or  receiving
remuneration to induce, or in return for, purchasing, leasing, ordering or arranging for the purchase, lease or order of any healthcare item or
service reimbursable under Medicare, Medicaid or other federally financed healthcare programs. This statute has been interpreted broadly
to apply to arrangements between pharmaceutical manufacturers on the one hand and prescribers, purchasers and formulary managers on
the  other.  Although  there  are  several  statutory  exemptions  and  regulatory  safe  harbors  protecting  certain  common  activities  from
prosecution, the exemptions and safe harbors are drawn narrowly, and practices that involve remuneration intended to induce prescribing,
purchasing or recommending may be subject to scrutiny if they do not qualify for an exemption or safe harbor. Our practices may not, in all
cases,  meet  all  of  the  criteria  for  safe  harbor  protection  from  anti-kickback  liability.  Moreover,  recent  health  care  reform  legislation  has
strengthened these laws. For example, the Health Care Reform Law, among other things, amends the intent requirement of the U.S. Anti-
Kickback  Statute  and  criminal  health  care  fraud  statutes;  a  person  or  entity  no  longer  needs  to  have  actual  knowledge  of  this  statute  or
specific intent to violate it. In addition, the Health Care Reform Law provides that the government may assert that a claim including items
or services resulting from a violation of the U.S. Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the U.S. False
Claims Act. Federal false claims laws prohibit any person from knowingly presenting, or causing to be presented, a false claim for payment
to the federal government or knowingly making, or causing to be made, a false statement to get a false claim paid.

Over the past few years, pharmaceutical and other healthcare companies have been prosecuted under these laws for a variety of
alleged promotional and marketing activities, such as: allegedly providing free trips, free goods, sham consulting fees and grants and other
monetary benefits to prescribers; reporting to pricing services inflated average wholesale prices that were then used by federal programs to
set reimbursement rates; engaging in off-label promotion that caused claims to be submitted to Medicare or Medicaid for non-covered, off-
label uses; and submitting inflated best price information to the Medicaid Rebate Program to reduce liability for Medicaid rebates. Most
states also have statutes or regulations similar to the U.S. Anti-Kickback Statute and the U.S. False Claims Act, which apply to items and
services  reimbursed  under  Medicaid  and  other  state  programs,  or,  in  several  states,  apply  regardless  of  the  payor.  Sanctions  under  these
federal and state laws may include substantial civil monetary penalties, exclusion of a manufacturer’s products from reimbursement under
government programs, substantial criminal fines and imprisonment.

We are, and will be, completely dependent on third parties to manufacture lenabasum, and our commercialization of lenabasum could
be  halted,  delayed  or  made  less  profitable  if  those  third  parties  fail  to  obtain  manufacturing  approval  from  the  FDA  or  comparable
foreign regulatory authorities, fail to provide us with sufficient quantities of lenabasum or fail to do so at acceptable quality levels or
prices.

We  do  not  currently  have,  nor  do  we  plan  to  acquire,  the  capability  or  infrastructure  to  manufacture  the  active  pharmaceutical
ingredient, or the finished lenabasum drug product in tablet form, for use in our clinical trials or for commercial product, if any. As a result,
we will be obligated to rely on contract manufacturers if and when lenabasum is approved for commercialization.

The facilities used by our contract manufacturers to manufacture lenabasum must be approved by the FDA pursuant to inspections
that  will  be  conducted  after  we  submit  our  NDA  to  the  FDA.  We  do  not  control  the  manufacturing  processes  of,  and  are  completely
dependent on, our contract manufacturing partners for compliance with cGMPs for manufacture of both active drug substances and finished
drug  products.  These  cGMP  regulations  cover  all  aspects  of  the  manufacturing,  testing,  quality  control  and  record  keeping  relating  to
lenabasum.  If  our  contract  manufacturers  cannot  successfully  manufacture  material  that  conforms  to  our  specifications  and  the  strict
regulatory requirements of the FDA or others, they will not be able to secure and/or maintain regulatory approval for their manufacturing
facilities. If the FDA or a comparable foreign regulatory authority does not approve these facilities for the manufacture of lenabasum or if it
withdraws any such approval in the future, we may need to find alternative manufacturing facilities, which would significantly impact our
ability to develop, obtain regulatory approval for or market lenabasum, if approved.

Our contract manufacturers will be subject to ongoing periodic unannounced inspections by the FDA and corresponding state and
foreign  agencies  for  compliance  with  cGMPs  and  similar  regulatory  requirements.  We  will  not  have  control  over  our  contract
manufacturers’ compliance with these regulations and standards. Failure by any of our contract manufacturers to comply with applicable
regulations could result in sanctions being imposed on us, including fines, injunctions, civil penalties, failure to grant approval to market
lenabasum,  delays,  suspensions  or  withdrawals  of  approvals,  operating  restrictions  and  criminal  prosecutions,  any  of  which  could
significantly  and  adversely  affect  our  business.  In  addition,  we  will  not  have  control  over  the  ability  of  our  contract  manufacturers  to
maintain  adequate  quality  control,  quality  assurance  and  qualified  personnel.  Failure  by  our  contract  manufacturers  to  comply  with  or
maintain any of these standards could adversely affect our ability to develop, obtain regulatory approval for or market lenabasum.

32

 
 
 
 
 
 
 
 
 
 
 
 
If  for  any  reason,  these  third  parties  are  unable  or  unwilling  to  perform,  we  may  not  be  able  to  terminate  our  agreements  with
them,  and  we  may  not  be  able  to  locate  alternative  manufacturers  or  formulators  or  enter  into  favorable  agreements  with  them  and  we
cannot be certain that any such third parties will have the manufacturing capacity to meet future requirements. If these manufacturers or
any  alternate  manufacturer  of  finished  drug  product  experiences  any  significant  difficulties  in  its  respective  manufacturing  processes  for
our  active  pharmaceutical  ingredient,  or  API,  or  our  finished  lenabasum  product  or  should  cease  doing  business  with  us,  we  could
experience  significant  interruptions  in  the  supply  of  lenabasum  or  may  not  be  able  to  create  a  supply  of  lenabasum  at  all.  Were  we  to
encounter  manufacturing  issues,  our  ability  to  produce  a  sufficient  supply  of  lenabasum  might  be  negatively  affected.  Our  inability  to
coordinate the efforts of our third party manufacturing partners, or the lack of capacity available at our third party manufacturing partners,
could impair our ability to supply lenabasum at required levels. Because of the significant regulatory requirements that we would need to
satisfy in order to qualify a new bulk or finished product manufacturer, if we face these or other difficulties with our current manufacturing
partners, we could experience significant interruptions in the supply of lenabasum if we decided to transfer the manufacture of lenabasum
to one or more alternative manufacturers in an effort to deal with the difficulties.

Any manufacturing problem or the loss of a contract manufacturer could be disruptive to our operations and result in lost sales.
Additionally, we rely on third parties to supply the raw materials needed to manufacture our potential products. Any reliance on suppliers
may  involve  several  risks,  including  a  potential  inability  to  obtain  critical  materials  and  reduced  control  over  production  costs,  delivery
schedules,  reliability  and  quality. Any  unanticipated  disruption  to  a  future  contract  manufacturer  caused  by  problems  at  suppliers  could
delay shipment of lenabasum, increase our cost of goods sold and result in lost sales.

We cannot guarantee that our manufacturing and supply partners will be able to manufacture lenabasum at commercial scale on a
cost-effective  basis.  If  the  commercial-scale  manufacturing  costs  of  lenabasum  are  higher  than  expected,  these  costs  may  significantly
impact our operating results. In order to reduce costs, we may need to develop and implement process improvements. However, in order to
do so, we will need, from time to time, to notify or make submissions with regulatory authorities, and the improvements may be subject to
approval by such regulatory authorities. We cannot be sure that we will receive these necessary approvals or that these approvals will be
granted in a timely fashion. We also cannot guarantee that we will be able to enhance and optimize output in our commercial manufacturing
process. If we cannot enhance and optimize output, we may not be able to reduce our costs over time.

Our product candidate, lenabasum, is currently classified as a Schedule I controlled substance subject to U.S. controlled substance laws
and regulations, including regulations of the Drug Enforcement Agency and the U.S. Food and Drug Administration. Failure to obtain
the  necessary  licenses  and  registrations  and  failure  to  comply  with  these  laws  could  result  in  the  delay  in  the  manufacturing  and
distribution of lenabasum and could delay the completion of clinical studies. Such delays and the cost of compliance with these laws
and regulations, could adversely affect our business operations and our financial condition.

In the United States, our product candidate, lenabasum, is currently classified as a Schedule I controlled substance as defined in
the Controlled Substance Act (“CSA”). This designation is based on lenabasum’s chemical structure and pharmacology (namely, it being a
synthetic  endocannabinoid  mimetic  that  binds  to  the  CB2  receptor).  Even  though  lenabasum’s  mechanism  of  action  is  to  modulate  the
immune system and results to date from clinical studies have demonstrated the drug has no psychotropic effects (which we believe is unlike
other members of its chemical class), the DEA classifies lenabasum as a Schedule I substance.

Schedule  I  controlled  substances  are  pharmaceutical  products  subject  to  specific  regulations  under  the  CSA,  which  establishes,
among  other  things,  certain  registration,  manufacturing  quotas,  security,  recordkeeping,  reporting,  import,  export  and  other  requirements
administered by the DEA. All parties responsible for the manufacturing, distribution and testing of the drug in clinical studies must apply
for and obtain a license from the DEA before they are permitted to perform these activities with lenabasum. Furthermore, these parties must
have the security, control, recordkeeping, reporting and inventory mechanisms required by the DEA to prevent drug loss and diversion. All
licensed facilities are required to renew their registrations annually if they intend to continue to work with our drug. The DEA conducts
periodic inspections of certain registered establishments that handle controlled substances. We have been working with our manufacturers,
distributors,  exporters  and  clinical  sites  to  obtain  the  necessary  licenses  to  work  with  lenabasum.  The  parties  responsible  for  the
manufacturing,  distribution  and  export  of  lenabasum  have  already  applied  for  and  have  been  granted  DEA  licenses  and  a  number  of
institutions responsible for conducting our current clinical studies have also been granted DEA licenses. However, the failure to maintain
the necessary registrations, and the delay or failure of additional clinical sites to obtain DEA registrations, could delay the manufacturing,
distribution and export of lenabasum and could delay the completion of the clinical studies. Furthermore, failure to maintain compliance
with the CSA, particularly non-compliance resulting in loss or diversion, could result in regulatory action that could have a material adverse
effect  on  our  business,  financial  condition  and  results  of  operations.  The  DEA  may  seek  civil  penalties,  refuse  to  renew  necessary
registrations,  or  initiate  proceedings  to  restrict,  suspend  or  revoke  those  registrations.  In  certain  circumstances,  violations  could  lead  to
criminal proceedings. In addition, if the FDA, DEA, or any foreign regulatory authority determines that lenabasum may have potential for
abuse,  it  may  require  us  to  generate  more  clinical  or  other  data  than  we  currently  anticipate  to  establish  whether  or  to  what  extent  the
substance has an abuse potential, which could increase the cost and/or delay the launch of lenabasum.

33

 
 
 
 
 
 
 
 
 
 
Individual states have also established controlled substance laws and regulations. Though state-controlled substances laws often
mirror  federal  law,  because  the  states  are  separate  jurisdictions,  they  may  separately  schedule  drugs,  as  well.  While  some  states
automatically  schedule  a  drug  based  on  federal  action,  other  states  schedule  drugs  through  rulemaking  or  a  legislative  action.  The
requirement for state registrations could also result in delay of the manufacturing and distribution of lenabasum or in the completion of our
clinical  studies.  We  and  our  manufacturing  vendors  and  clinical  sites  must  also  obtain  separate  state  registrations,  permits  or  licenses  in
order to be able to obtain, handle and distribute controlled substances for clinical trials or commercial sale, and failure to meet applicable
regulatory requirements could lead to enforcement and sanctions by the states in addition to those from the DEA or otherwise arising under
federal law.

The  manufacturing  and  distribution  of  lenabasum  is  subject  to  the  DEA’s  annual  manufacturing  and  procurement  quota
requirements.  The  annual  quota  allocated  to  us  or  our  contract  manufacturers  for  the  controlled  substances  in  lenabasum  may  not  be
sufficient  to  complete  clinical  trials.  Consequently,  any  delay  or  refusal  by  the  DEA  in  establishing  our,  or  our  contract  manufacturers’,
procurement and/or production quota for controlled substances could delay or stop our clinical trials or product launches, which could have
a material adverse effect on our business, financial position and operations.

Delays in shipping lenabasum could have a material adverse effect on our business, results of operations and financial condition.

The import and export of lenabasum requires import and export licenses. However, because lenabasum is currently a Schedule I
controlled substance in the United States, in addition to the FDA and U.S. Customs and Border Protection, its import and export is also
regulated  by  the  DEA.  We  may  not  be  granted,  or  if  granted,  maintain,  such  licenses  for  import  or  export  from  the  authorities  these
regulatory agencies. Even if we obtain the relevant licenses, shipments of lenabasum may be held up in transit by any of these authorities,
which  could  cause  significant  delays  and  may  lead  to  product  batches  which  no  longer  meet  specifications  for  use  in  clinical  trials  or
commercial distribution. Such events could result in delayed development timelines, increased expenses and partial or total loss of revenue
from lenabasum.

We  expect  that  we  will  rely  on  third  parties  to  assist  us  in  conducting  clinical  trials  for  lenabasum.  If  these  third  parties  do  not
successfully  carry  out  their  contractual  duties  or  meet  expected  deadlines,  we  may  not  be  able  to  obtain  regulatory  approval  for  or
commercialize lenabasum and our business would be substantially harmed.

We  expect  to  enter  into  agreements  with  third-party  CROs  to  assist  us  in  conducting  and  managing  our  clinical  programs,
including contracting with clinical sites to perform our clinical studies. We plan to rely on these parties for execution of clinical studies for
lenabasum and we will control only certain aspects of conducting the clinical studies. Nevertheless, we will be responsible for ensuring that
each of our studies is conducted in accordance with the applicable protocol, legal, regulatory and scientific standards, and our reliance on
CROs and clinical sites will not relieve us of our regulatory responsibilities. We and our CROs will be required to comply with cGCPs,
which are regulations and guidelines enforced by the FDA, the Competent Authorities of the Member States of the European Economic
Area and comparable foreign regulatory authorities for any products in clinical development. The FDA enforces these cGCP regulations
through  periodic  inspections  of  trial  sponsors,  principal  investigators  and  trial  sites.  If  we  or  our  CROs  fail  to  comply  with  applicable
cGCPs, the clinical data generated in our clinical trials may be deemed unreliable and the FDA or comparable foreign regulatory authorities
may  require  us  to  perform  additional  clinical  trials  before  approving  our  marketing  applications.  We  cannot  assure  you  that,  upon
inspection, the FDA will determine that any of our clinical trials comply with cGCPs. In addition, our clinical trials must be conducted with
products  produced  under  cGMP  regulations  and  will  require  a  large  number  of  test  subjects.  Our  failure  or  the  failure  of  our  CROs  or
clinical sites to comply with these regulations may require us to repeat clinical trials, which would delay the regulatory approval process
and could also subject us to enforcement action up to and including civil and criminal penalties.

Although we intend to design the clinical trials for lenabasum in consultation with CROs, we expect that the CROs will manage all
of the clinical trials conducted at contracted clinical sites. As a result, many important aspects of our drug development programs would be
outside of our direct control. In addition, the CROs and clinical sites may not perform all of their obligations under arrangements with us or
in compliance with regulatory requirements. If the CROs or clinical sites do not perform clinical trials in a satisfactory manner, or if they
breach their obligations to us or fail to comply with regulatory requirements, the development and commercialization of lenabasum for the
subject  indication  may  be  delayed  or  our  development  program  materially  and  irreversibly  harmed.  We  cannot  control  the  amount  and
timing  of  resources  these  CROs  and  clinical  sites  will  devote  to  our  program  or  lenabasum.  If  we  are  unable  to  rely  on  clinical  data
collected  by  our  CROs,  we  could  be  required  to  repeat,  extend  the  duration  of,  or  increase  the  size  of  our  clinical  trials,  which  could
significantly delay commercialization and require significantly greater expenditures.

If any of our relationships with these third-party CROs or clinical sites terminate, we may not be able to enter into arrangements
with  alternative  CROs  or  clinical  sites.  If  CROs  do  not  successfully  carry  out  their  contractual  duties  or  obligations  or  meet  expected
deadlines,  if  they  need  to  be  replaced  or  if  the  quality  or  accuracy  of  the  clinical  data  they  obtain  is  compromised  due  to  the  failure  to
adhere  to  our  clinical  protocols,  regulatory  requirements  or  for  other  reasons,  any  such  clinical  trials  may  be  extended,  delayed  or
terminated, and we may not be able to obtain regulatory approval for or successfully commercialize lenabasum. As a result, our financial
results and the commercial prospects for lenabasum would be harmed, our costs could increase and our ability to generate revenue could be
delayed.

34

 
 
 
 
 
 
 
 
 
 
 
 
Any  termination  or  suspension  of  or  delays  in  the  commencement  or  completion  of  any  necessary  studies  of  lenabasum  for  any
indications  could  result  in  increased  costs  to  us,  delay  or  limit  our  ability  to  generate  revenue  and  adversely  affect  our  commercial
prospects.

● The commencement and completion of clinical studies can be delayed for a number of reasons, including delays related to:

● the FDA failing to grant permission to proceed and placing the clinical study on hold;

● subjects failing to enroll or remain in our trials at the rate we expect;

● a facility manufacturing lenabasum being ordered by the FDA or other government or regulatory authorities to temporarily or
permanently shut down due to violations of cGMP requirements or other applicable requirements, or cross-contaminations of product in the
manufacturing process;

● any changes to our manufacturing process that may be necessary or desired;

●  subjects  choosing  an  alternative  treatment  for  the  indications  for  which  we  are  developing  lenabasum,  or  participating  in

competing clinical studies;

● subjects experiencing severe or unexpected drug-related adverse effects;

● reports of similar technologies and products raising safety and/or efficacy concerns;

●  third-party  clinical  investigators  losing  their  license  or  permits  necessary  to  perform  our  clinical  trials,  not  performing  our
clinical  trials  on  our  anticipated  schedule  or  employing  methods  consistent  with  the  clinical  trial  protocol,  cGCP  requirements,  or  other
third parties not performing data collection and analysis in a timely or accurate manner;

● inspections of clinical study sites by the FDA or IRBs finding regulatory violations that require us to undertake corrective action,
result in suspension or termination of one or more sites or the imposition of a clinical hold on the entire study, or that prohibit us from using
some or all of the data in support of our marketing applications;

● third-party contractors becoming debarred or suspended or otherwise penalized by the FDA or other government or regulatory
authorities for violations of regulatory requirements, in which case we may need to find a substitute contractor, and we may not be able to
use some or any of the data produced by such contractors in support of our marketing applications;

● one or more IRBs refusing to approve, suspending or terminating the study at an investigational site precluding enrollment of
additional subjects, or withdrawing its approval of the trial; reaching agreement on acceptable terms with prospective CROs and clinical
trial sites, the terms of which can be subject to extensive negotiation and may vary significantly among different CROs and trial sites;

● deviations of the clinical sites from trial protocols or dropping out of a trial;

● adding new clinical trial sites;

● the inability of the CRO to execute any clinical trials for any reason; and

● government or regulatory delays or “clinical holds” requiring suspension or termination of a trial.

Product development costs for lenabasum will increase if we have delays in testing or approval or if we need to perform more or
larger clinical studies than planned. Additionally, changes in regulatory requirements and policies may occur and we may need to amend
study  protocols  to  reflect  these  changes.  Amendments  may  require  us  to  resubmit  our  study  protocols  to  the  FDA  and  IRBs  for
reexamination, which may impact the costs, timing or successful completion of that study. If we experience delays in completion of, or if
we, the FDA or other regulatory authorities, the IRB, or other reviewing entities, or any of our clinical study sites suspend or terminate any
of our clinical studies of lenabasum, its commercial prospects may be materially harmed and our ability to generate product revenues will
be  delayed. Any  delays  in  completing  our  clinical  trials  will  increase  our  costs,  slow  down  our  development  and  approval  process  and
jeopardize  our  ability  to  commence  product  sales  and  generate  revenues. Any  of  these  occurrences  may  harm  our  business,  financial
condition and prospects significantly. In addition, many of the factors that cause, or lead to, termination or suspension of, or a delay in the
commencement or completion of, clinical studies may also ultimately lead to the denial of regulatory approval of lenabasum. In addition, if
one  or  more  clinical  studies  are  delayed,  our  competitors  may  be  able  to  bring  products  to  market  before  we  do,  and  the  commercial
viability of lenabasum could be significantly reduced.

35

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We may not be able to obtain or maintain orphan drug designation or exclusivity for our product candidates.

We have been granted orphan drug designation in the United States and in the European Union for lenabasum for the treatment of
cystic fibrosis and systemic sclerosis. We also intend to seek orphan drug status for lenabasum for the treatment of DM. Upon receipt of
regulatory approval, orphan drug status will provide us with seven years of market exclusivity in the United States under the Orphan Drug
Act. However, there is no guarantee that the FDA will grant orphan drug designation for lenabasum for DM or any other indication, which
would make us ineligible for the additional exclusivity and other benefits of orphan drug designation. Moreover, there can be no assurance
that another company also holding orphan drug designation for the same indication or which may receive orphan drug designation in the
future will not receive approval prior to us, in which case our competitor would have the benefit of the seven years of market exclusivity,
and we would be unable to commercialize our product for the same indication until the expiration of the seven-year period. Even if we are
the first to obtain approval for the orphan drug indication, there are circumstances under which a competing product may be approved for
the same indication during our seven-year period of exclusivity.

Under the Orphan Drug Act, the FDA may grant orphan drug designation to a drug intended to treat a rare disease or condition,
which  is  generally  a  disease  or  condition  that  affects  fewer  than  200,000  individuals  in  the  United  States  and  for  which  there  is  no
reasonable expectation that the cost of developing and making a drug available in the Unites States for this type of disease or condition will
be  recovered  from  sales  of  the  product.  Orphan  drug  designation  must  be  requested  before  submitting  an  NDA. After  the  FDA  grants
orphan  drug  designation,  the  identity  of  the  therapeutic  agent  and  its  potential  orphan  use  are  disclosed  publicly  by  the  FDA.  Orphan
designation does not convey any advantage in or shorten the duration of regulatory review and approval process. In addition to the potential
period of exclusivity, orphan designation makes a company eligible for grant funding of up to $400,000 per year for four years to defray
costs of clinical trial expenses, tax credits for clinical research expenses and potential exemption from the FDA application user fee.

If a product that has orphan designation subsequently receives the first FDA approval for the disease or condition for which it has
such  designation,  the  product  is  entitled  to  orphan  drug  exclusivity,  which  means  the  FDA  may  not  approve  any  other  applications  to
market the same drug for the same indication for seven years, except in limited circumstances, such as (i) the drug’s orphan designation is
revoked;  (ii)  its  marketing  approval  is  withdrawn;  (iii)  the  orphan  exclusivity  holder  consents  to  the  approval  of  another  applicant’s
product; (iv) the orphan exclusivity holder is unable to assure the availability of a sufficient quantity of drug; or (v) a showing of clinical
superiority to the product with orphan exclusivity by a competitor product. If a drug designated as an orphan product receives marketing
approval for an indication broader than what is designated, it may not be entitled to orphan drug exclusivity. There can be no assurance that
we will receive orphan drug designation for lenabasum for the treatment of DM, or other inflammatory disease indications, if we elect to
seek such applications.

36

 
 
 
 
 
 
 
 
Any fast track designation or grant of priority review  status  by  the  FDA  may  not  actually  lead  to  a  faster  development  or  regulatory
review or approval process, nor will it assure FDA approval of our product candidates. Additionally, our product candidates may treat
indications that do not qualify for priority review vouchers.

We  have  received  fast  track  designation  for  lenabasum  for  the  treatment  of  cystic  fibrosis  and  systemic  sclerosis  in  the  United
States and European Union and may seek fast track designation or priority review of applications for approval of our product candidate for
future indications. If a drug is intended for the treatment of a serious or life-threatening condition and the drug demonstrates the potential to
address unmet medical needs for this condition, the drug sponsor may apply for FDA fast track designation. If a product candidate offers
major advances in treatment, the FDA may designate it eligible for priority review. The FDA has broad discretion whether or not to grant
these  designations,  so  even  if  we  believe  a  particular  product  candidate  is  eligible  for  these  designations,  we  cannot  assure  you  that  the
FDA  would  decide  to  grant  them.  Even  if  we  do  receive  fast  track  designation  or  priority  review,  we  may  not  experience  a  faster
development process, review or approval compared to conventional FDA procedures. The FDA may withdraw fast track designation if it
believes that the designation is no longer supported by data from our clinical development program.

Any  breakthrough  therapy  designation  granted  by  the  FDA  for  our  product  candidate  may  not  lead  to  a  faster  development  or
regulatory  review  or  approval  process,  and  it  does  not  increase  the  likelihood  that  our  product  candidate  will  receive  marketing
approval.

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

Designation of a product candidate as a breakthrough therapy is within the discretion of the FDA. Accordingly, even if we believe
our  product  candidate  meets  the  criteria  for  designation  as  a  breakthrough  therapy,  the  FDA  may  disagree  and  instead  determine  not  to
make such designation. In any event, the receipt of a breakthrough therapy designation for a product candidate may not result in a faster
development  process,  review  or  approval  compared  to  drugs  considered  for  approval  under  conventional  FDA  procedures  and  does  not
assure ultimate approval by the FDA. In addition, even if one or more of our product candidates qualify as breakthrough therapies, the FDA
may later decide that the products no longer meet the conditions for qualification or decide that the time period for FDA review or approval
will not be shortened.

Third-party  coverage  and  reimbursement  and  health  care  cost  containment  initiatives  and  treatment  guidelines  may  constrain  our
future revenues.

Our  ability  to  successfully  market  lenabasum  will  depend  in  part  on  the  level  of  reimbursement  that  government  health
administration  authorities,  private  health  coverage  insurers  and  other  organizations  provide  for  the  cost  of  our  products  and  related
treatments. Countries in which lenabasum is expected to be sold through reimbursement schemes under national health insurance programs
frequently  require  that  manufacturers  and  sellers  of  pharmaceutical  products  obtain  governmental  approval  of  initial  prices  and  any
subsequent price increases. In certain countries, including the United States, government-funded and private medical care plans can exert
significant indirect pressure on prices. We may not be able to sell lenabasum profitably if adequate prices are not approved or coverage and
reimbursement is unavailable or limited in scope. Increasingly, third-party payors attempt to contain health care costs in ways that are likely
to impact our development of products including:

● failing to approve or challenging the prices charged for health care products;

● introducing reimportation schemes from lower priced jurisdictions;

● limiting both coverage and the amount of reimbursement for new therapeutic products;

● denying or limiting coverage for products that are approved by the regulatory agencies but are considered to be experimental or

investigational by third-party payors; and

● refusing to provide coverage when an approved product is used in a way that has not received regulatory marketing approval.

Risks Relating to Our Intellectual Property Rights

It is difficult and costly to protect our intellectual property rights, and we cannot ensure the protection of these rights.

Our  commercial  success  will  depend,  in  part,  on  maintaining  and  obtaining  additional  patent  protection  for  our  technologies,
products and processes, successfully defending these patents against third-party challenges and successfully enforcing these patents against
third party competitors. The patent positions of pharmaceutical companies can be highly uncertain and involve complex legal, scientific and
factual questions for which important legal principles remain unresolved. Changes in either the patent laws or in interpretations of patent
laws may diminish the value of our intellectual property. Accordingly, we cannot predict the breadth of claims that may be allowable in our
pending applications or, the enforceability of our existing and future patents. Our pending patent applications for lenabasum and its uses
may never be approved by United States or foreign patent offices and the existing patents and patent applications relating to lenabasum and
related  technologies  may  be  challenged,  invalidated  or  circumvented  by  third  parties  and  may  not  protect  us  against  competitors  with
similar products or technologies.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The  degree  of  our  current  and  future  protection  for  our  proprietary  rights  is  uncertain,  because  legal  means  afford  only  limited
protection  and  may  not  adequately  protect  our  rights,  permit  us  to  gain  or  keep  our  competitive  advantage,  or  provide  us  with  any
competitive advantage at all. For example, others have filed, and in the future are likely to file, patent applications covering products and
technologies that are similar, identical or competitive to lenabasum, or important to our business. We cannot be certain that any patents or
patent  application  owned  by  a  third  party  will  not  have  priority  over  patents  and  patent  applications  filed  by  us,  or  that  we  will  not  be
involved in interference, opposition or invalidity proceedings before United States or foreign patent offices.

37

 
 
 
 
We  also  rely  on  trade  secrets  to  protect  technology,  especially  in  cases  when  we  believe  patent  protection  is  not  appropriate  or
obtainable.  However,  trade  secrets  are  difficult  to  protect.  While  we  require  employees,  academic  collaborators,  consultants  and  other
contractors  to  enter  into  confidentiality  agreements,  we  may  not  be  able  to  adequately  protect  our  trade  secrets  or  other  proprietary  or
licensed information. Typically, research collaborators and scientific advisors have rights to publish data and information in which we may
have  rights.  If  we  cannot  maintain  the  confidentiality  of  our  proprietary  technology  and  other  confidential  information,  our  ability  to
receive patent protection and our ability to protect valuable information owned by us may be imperiled. Enforcing a claim that a third-party
entity  illegally  obtained  and  is  using  any  of  our  trade  secrets  is  expensive  and  time  consuming,  and  the  outcome  is  unpredictable.  In
addition,  courts  are  sometimes  less  willing  to  protect  trade  secrets  than  patents.  Moreover,  our  competitors  may  independently  develop
equivalent knowledge, methods and know-how.

If  we  fail  to  maintain  or  obtain  additional  patent  protection  or  trade  secret  protection  for  lenabasum  or  our  technologies,  third
parties could use our proprietary information, which could impair our ability to compete in the market and adversely affect our ability to
generate revenues and attain profitability.

We may also rely on the trademarks we may develop to distinguish our products from the products of our competitors. We cannot
guarantee  that  any  trademark  applications  filed  by  us  or  our  business  partners  will  be  approved.  Third  parties  may  also  oppose  such
trademark  applications,  or  otherwise  challenge  our  use  of  the  trademarks.  In  the  event  that  the  trademarks  we  use  are  successfully
challenged,  we  could  be  forced  to  rebrand  our  products,  which  could  result  in  loss  of  brand  recognition,  and  could  require  us  to  devote
resources to advertising and marketing new brands. Further, we cannot provide assurance that competitors will not infringe the trademarks
we use, or that we will have adequate resources to enforce these trademarks.

Lenabasum may infringe the intellectual property rights of others, which could increase our costs and delay or prevent our development
and commercialization efforts.

Our success depends in part on avoiding infringement of the proprietary technologies of others. The pharmaceutical industry has
been characterized by frequent litigation regarding patent and other intellectual property rights. Identification  of  third  party  patent  rights
that  may  be  relevant  to  our  proprietary  technology  is  difficult  because  patent  searching  is  imperfect  due  to  differences  in  terminology
among patents, incomplete databases and the difficulty in assessing the meaning of patent claims. Additionally, because patent applications
are  maintained  in  secrecy  until  the  application  is  published,  we  may  be  unaware  of  third-party  patents  that  may  be  infringed  by
commercialization  of  lenabasum  or  any  future  product  candidate.  There  may  be  certain  issued  patents  and  patent  applications  claiming
subject matter that we may be required to license in order to research, develop or commercialize lenabasum, and we do not know if such
patents and patent applications would be available to license on commercially reasonable terms, or at all. Any claims of patent infringement
asserted by third parties would be time-consuming and may:

● result in costly litigation;

● divert the time and attention of our technical personnel and management;

● prevent us from commercializing a product until the asserted patent expires or is held finally invalid or not infringed in a court

of law;

● require us to cease or modify our use of the technology and/or develop non-infringing technology; or

● require us to enter into royalty or licensing agreements.

Although  no  third  party  has  asserted  a  claim  of  infringement  against  us,  others  may  hold  proprietary  rights  that  could  prevent
lenabasum from being marketed. Any patent-related legal action against us claiming damages and seeking to enjoin commercial activities
relating to lenabasum or our processes could subject us to potential liability for damages and require us to obtain a license to continue to
manufacture or market lenabasum or any future product candidates. We cannot predict whether we would prevail in any such actions or that
any license required under any of these patents would be made available on commercially acceptable terms, if at all. In addition, we cannot
be sure that we could redesign lenabasum or any future product candidates or processes to avoid infringement, if necessary. Accordingly,
an  adverse  determination  in  a  judicial  or  administrative  proceeding,  or  the  failure  to  obtain  necessary  licenses,  could  prevent  us  from
developing  and  commercializing  lenabasum  or  a  future  product  candidate,  which  could  harm  our  business,  financial  condition  and
operating results.

38

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
A number of companies, including several major pharmaceutical companies, have conducted research on anti-inflammatory and
anti-fibrosis therapies which resulted in the filing of many patent applications related to this research. If we were to challenge the validity of
these  or  any  issued  United  States  patent  in  court,  we  would  need  to  overcome  a  statutory  presumption  of  validity  that  attaches  to  every
issued United States patent. This means that, in order to prevail, we would have to present clear and convincing evidence as to the invalidity
of the patent’s claims.

If we were to challenge the validity of these or any issued United States patent in an administrative trial before the Patent Trial and
Appeal  Board  in  the  United  States  Patent  and  Trademark  Office,  we  would  have  to  prove  that  the  claims  are  unpatentable  by  a
preponderance of the evidence. There is no assurance that a jury and/or court would find in our favor on questions of infringement, validity
or enforceability.

We may be subject to claims that we have wrongfully hired an employee from a competitor or that we or our employees have wrongfully
used or disclosed alleged confidential information or trade secrets of their former employers.

As  is  commonplace  in  our  industry,  we  employ  individuals  who  were  previously  employed  at  other  pharmaceutical  companies,
including our competitors or potential competitors. Although no claims against us are currently pending, we may be subject in the future to
claims  that  our  employees  or  prospective  employees  are  subject  to  a  continuing  obligation  to  their  former  employers  (such  as  non-
competition  or  non-solicitation  obligations)  or  claims  that  our  employees  or  we  have  inadvertently  or  otherwise  used  or  disclosed  trade
secrets or other proprietary information of their former employers. Litigation may be necessary to defend against these claims. Even if we
are successful in defending against these claims, litigation could result in substantial costs and be a distraction to management.

We may be subject to claims challenging the inventorship of our patents and other intellectual property.

Although  we  are  not  aware  of  any  asserted  third-party  claims  challenging  inventorship  on  our  patents  or  ownership  of  our
intellectual  property,  we  may  in  the  future  be  subject  to  claims  that  former  employees,  strategic  partners,  commercial  counterparties  or
other third parties have an interest in our patents or other intellectual property as an inventor or co-inventor. While it is our policy to require
our  employees  and  contractors  who  may  be  involved  in  the  conception  or  development  of  intellectual  property  to  execute  agreements
assigning such intellectual property to us, we cannot fully control the enforcement of these policies by third parties with which we contract,
nor  can  we  be  certain  that  assignment  agreements  between  us  and  our  employees,  between  us  and  our  counterparties,  or  between  our
counterparties and their employees, will effectively protect our interests as to any party who conceives or develops intellectual property that
we  regard  as  our  own.  Among  other  issues,  the  assignment  of  intellectual  property  rights  may  not  be  self-executing,  the  assignment
agreements  may  be  breached,  or  we  may  have  disputes  arise  from  conflicting  obligations  of  consultants  or  others  who  are  involved  in
developing our product candidates. As we approach potential commercialization of our product candidates, we are more closely analyzing
all facts that we believe might be used to assert an inventorship claim against us. Determinations like these involve complex sets of fact and
applications of sometimes-unsettled patent law, resulting in inherent uncertainties regarding ownership rights. Determining the history of
development of certain of our intellectual property is made more difficult by the fact that certain of our intellectual property was developed
by other companies for other indications before being acquired by us. Consequently, we cannot be sure that we have all of the documentary
records relevant to such an analysis.

If claims challenging inventorship are made against us, we may need to resort to litigation to resolve those claims. If we fail in
defending  against  any  such  claims,  in  addition  to  paying  monetary  damages,  we  may  lose  valuable  intellectual  property  rights,  such  as
exclusive  ownership  of  valuable  intellectual  property  rights  or  the  right  to  assert  those  rights  against  third-parties  marketing  competing
products.  Even  if  we  are  successful  in  defending  against  such  claims,  litigation  could  result  in  substantial  costs  and  be  a  distraction  to
management and other employees.

General Company-Related Risks

We will need to grow the size of our organization, and we may experience difficulties in managing this growth.

As  of  December  31,  2017,  we  had  47  full-time  employees.  As  our  development  and  commercialization  plans  and  strategies
develop, we will need to expand the size of our employee base for managerial, operational, sales, marketing, financial and other resources.
Future  growth  would  impose  significant  added  responsibilities  on  members  of  management,  including  the  need  to  identify,  recruit,
maintain, motivate and integrate additional employees. In addition, our management may have to divert a disproportionate amount of its
attention  away  from  our  day-to-day  activities  and  devote  a  substantial  amount  of  time  to  managing  these  growth  activities.  Our  future
financial  performance  and  our  ability  to  commercialize  lenabasum  and  any  other  future  product  candidates  and  our  ability  to  compete
effectively will depend, in part, on our ability to effectively manage our future growth.

39

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Future capital raises may dilute our existing stockholders’ ownership and/or have other adverse effects on our operations.

If  we  raise  additional  capital  by  issuing  equity  securities,  our  existing  stockholders’  percentage  ownership  will  be  reduced  and
these  stockholders  may  experience  substantial  dilution.  We  may  also  issue  equity  securities  that  provide  for  rights,  preferences  and
privileges  senior  to  those  of  our  common  stock.  If  we  raise  additional  funds  by  issuing  debt  securities,  these  debt  securities  would  have
rights  senior  to  those  of  our  common  stock  and  the  terms  of  the  debt  securities  issued  could  impose  significant  restrictions  on  our
operations,  including  liens  on  our  assets.  If  we  raise  additional  funds  through  collaborations  and  licensing  arrangements,  we  may  be
required to relinquish some rights to our technologies or candidate products, or to grant licenses on terms that are not favorable to us.

If  we  are  not  successful  in  attracting  and  retaining  highly  qualified  personnel,  we  may  not  be  able  to  successfully  implement  our
business strategy. In addition, the loss of the services of certain key employees, including Yuval Cohen, our Chief Executive Officer,
Mark  Tepper,  our  President  and  Chief  Scientific  Officer,  Barbara  White,  our  Chief  Medical  Officer  and  Sean  Moran,  our  Chief
Financial Officer would adversely impact our business prospects.

Our ability to compete in the highly competitive pharmaceuticals industry depends in large part upon our ability to attract highly
qualified  managerial,  scientific  and  medical  personnel.  In  order  to  induce  valuable  employees  to  remain  with  us,  we  intend  to  provide
employees with stock options that vest over time. The value to employees of stock options that vest over time will be significantly affected
by movements in the price of our common stock that we will not be able to control and may at any time be insufficient to counteract more
lucrative offers from other companies.

Our  management  team  has  expertise  in  many  different  aspects  of  drug  development  and  commercialization.  However,  we  will
need  to  hire  additional  personnel  as  we  further  develop  lenabasum.  Competition  for  skilled  personnel  in  our  market  is  intense  and
competition for experienced scientists may limit our ability to hire and retain highly qualified personnel on acceptable terms. Despite our
efforts to retain valuable employees, members of our management, scientific and medical teams may terminate their employment with us on
short notice. In connection with the merger in April 2014 with Corbus Pharmaceuticals, Inc., our wholly-owned subsidiary, we entered into
employment agreements with certain of our executive officers. However, these employment arrangements provide for at-will employment,
which means that any of our employees could leave our employment at any time, with or without notice. The loss of the services of any of
our executive officers or other key employees could potentially harm our business, operating results or financial condition. In particular, we
believe  that  the  loss  of  the  services  of  Yuval  Cohen,  Ph.D.,  our  Chief  Executive  Officer,  Mark  Tepper,  Ph.D.,  our  President  and  Chief
Scientific Officer, Barbara White, M.D., our Chief Medical Officer and Sean Moran, C.P.A., M.B.A., our Chief Financial Officer, would
have a material adverse effect on our business. Our success also depends on our ability to continue to attract, retain and motivate highly
skilled junior, mid-level, and senior managers as well as junior, mid-level, and senior scientific and medical personnel.

Other  pharmaceutical  companies  with  which  we  compete  for  qualified  personnel  have  greater  financial  and  other  resources,
different risk profiles, and a longer history in the industry than we do. They also may provide more diverse opportunities and better chances
for career advancement. Some of these characteristics may be more appealing to high-quality candidates than what we have to offer. If we
are unable to continue to attract and retain high-quality personnel, the rate and success at which we can develop and commercialize product
candidates would be limited.

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

We face a potential risk of product liability as a result of the clinical testing of lenabasum and will face an even greater risk if we
commercialize lenabasum or any other future product. For example, we may be sued if any product we develop, including lenabasum, or
any  materials  that  we  use  in  our  products  allegedly  causes  injury  or  is  found  to  be  otherwise  unsuitable  during  product  testing,
manufacturing, marketing or sale. Any such product liability claims may include allegations of defects in manufacturing, defects in design,
a failure to warn of dangers inherent in the product, negligence, strict liability and a breach of warranties. Claims could also be asserted
under state consumer protection acts. If we cannot successfully defend ourselves against product liability claims, we may incur substantial
liabilities  or  be  required  to  limit  commercialization  of  lenabasum.  Even  successful  defense  would  require  significant  financial  and
management resources. Regardless of the merits or eventual outcome, liability claims may result in:

● decreased demand for lenabasum or any future products that we may develop;

● injury to our reputation;

● withdrawal of clinical trial participants;

● costs to defend the related litigation;

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

●  substantial monetary awards to trial participants or patients;

40

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

● the inability to commercialize lenabasum; and

● a decline in the value of our stock.

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

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

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

Risks Related to our Common Stock

Our affiliates may control our company for the foreseeable future, including the outcome of matters requiring stockholder approval.

Our  officers,  directors,  and  five  percent  stockholders  collectively  owned  approximately  19.6%  of  our  outstanding  shares  of
common  stock  as  of  December  31,  2017.  This  concentration  of  voting  power  and  control  could  have  a  significant  effect  in  delaying,
deferring or preventing an action that might otherwise be beneficial to our other stockholders and be disadvantageous to our stockholders
with  interests  different  from  those  entities  and  individuals.  Certain  of  these  individuals  also  have  significant  control  over  our  business,
policies and affairs as officers or directors of our company. Therefore, you should not invest in reliance on your ability to have any control
over our company.

An active, liquid trading market for our common stock may not be sustained.

Presently, our common stock is traded on the Nasdaq Global Market, or Nasdaq, and as we are in our early stages, an investment
in  our  company  may  require  a  long-term  commitment,  with  no  certainty  of  return.  If  we  are  unable  to  maintain  an  active,  liquid  active
trading market:

● investors may have difficulty buying and selling or obtaining market quotations;

● market visibility for shares of our common stock may be limited; and

● a lack of visibility for shares of our common stock may have a depressive effect on the market price for shares of our common

stock.

The lack of an active market could impair your ability to sell your shares at the time you wish to sell them or at a price that you
consider reasonable. The lack of an active market may also reduce the fair market value of your shares. An inactive market may also impair
our  ability  to  raise  capital  to  continue  to  fund  operations  by  selling  shares  and  may  impair  our  ability  to  acquire  additional  intellectual
property assets by using our shares as consideration.

41

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We  are  currently  listed  on  the  Nasdaq  Global  Market.  If  we  are  unable  to  maintain  listing  of  our  securities  on  the  Nasdaq  Global
Market  or  any  stock  exchange,  our  stock  price  could  be  adversely  affected  and  the  liquidity  of  our  stock  and  our  ability  to  obtain
financing could be impaired and it may be more difficult for our stockholders to sell their securities.

Although  our  common  stock  is  currently  listed  on  the  Nasdaq  Global  Market,  we  may  not  be  able  to  continue  to  meet  the
exchange’s minimum listing requirements or those of any other national exchange. If we are unable to maintain listing on Nasdaq or if a
liquid market for our common stock does not develop or is sustained, our common stock may remain thinly traded.

The Listing Rules of Nasdaq require listing issuers to comply with certain standards in order to remain listed on its exchange. If,
for any reason, we should fail to maintain compliance with these listing standards and Nasdaq should delist our securities from trading on its
exchange and we are unable to obtain listing on another national securities exchange, a reduction in some or all of the following may occur,
each of which could have a material adverse effect on our stockholders:

●  the liquidity of our common stock;

●  the market price of our common stock;

●  our ability to obtain financing for the continuation of our operations;

●  the number of institutional and general investors that will consider investing in our common stock;

●  the number of investors in general that will consider investing in our common stock;

●  the number of market makers in our common stock;

●  the availability of information concerning the trading prices and volume of our common stock; and

●  the number of broker-dealers willing to execute trades in shares of our common stock.

The market price of our common stock may be significantly volatile.

The  market  price  for  our  common  stock  may  be  volatile  and  subject  to  wide  fluctuations  in  response  to  factors  including  the

following:

●  actual or anticipated fluctuations in our quarterly or annual operating results;

●  changes in financial or operational estimates or projections;

●  conditions in markets generally;

●  changes in the economic performance or market valuations of companies similar to ours; and

●  general economic or political conditions in the United States or elsewhere.

In particular, the market prices of biotechnology companies like ours have been highly volatile due to factors, including, but not

limited to:

● any delay or failure to conduct a clinical trial for our product or receive approval from the FDA and other regulatory agencies;

● developments or disputes concerning a company’s intellectual property rights;

● technological innovations of such companies or their competitors;

● changes in market valuations of similar companies;

●  announcements  by  such  companies  or  their  competitors  of  significant  contracts,  acquisitions,  strategic  partnerships,  joint

ventures, capital commitments, new technologies, or patents; and

● failure to complete significant transactions or collaborate with vendors in manufacturing a product.

42

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The  securities  market  has  from  time  to  time  experienced  significant  price  and  volume  fluctuations  that  are  not  related  to  the
operating  performance  of  particular  companies.  These  market  fluctuations  may  also  materially  and  adversely  affect  the  market  price  of
shares of our common stock.

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

As  of  December  31,  2017,  we  had  outstanding  options  to  purchase  an  aggregate  of  7,844,966  shares  of  our  common  stock  at  a
weighted average exercise price of $3.75 per share and warrants to purchase an aggregate of 1,288,500 shares of our common stock at a
weighted average exercise price of $1.00 per share.

On January 26, 2018, pursuant to the terms of the Investment Agreement, we issued a warrant to CFF to purchase an aggregate of
1,000,000 shares of our common stock (the “CFF Warrant”). The CFF Warrant is exercisable at a price equal to $13.20 per share and was
immediately  exercisable  for  500,000  shares  of  our  common  stock.  Upon  completion  of  the  final  milestone  set  forth  in  the  Investment
Agreement and receipt of the final payment from CFF to us pursuant to the Investment Agreement, the CFF Warrant will be exercisable for
the  remaining  500,000  shares  of  our  common  stock.  The  CFF  Warrant  expires  on  January  26,  2025. Any  shares  of  our  common  stock
issued upon exercise of the CFF Warrant will be unregistered and subject to a one-year lock-up.

The exercise of such outstanding options and warrants will result in further dilution of your investment. If our existing stockholders
sell substantial amounts of our common stock in the public market, or if the public perceives that such sales could occur, this could have an
adverse impact on the market price of our common stock, even if there is no relationship between such sales and the performance of our
business.

We do not currently intend to pay dividends on our common stock in the foreseeable future, and consequently, your ability to achieve a
return on your investment will depend on appreciation in the price of our common stock.

We have never declared or paid cash dividends on our common stock and do not anticipate paying any cash dividends to holders
of our common stock in the foreseeable future. Consequently, investors must rely on sales of their common stock after price appreciation,
which may never occur, as the only way to realize any future gains on their investments. There is no guarantee that shares of our common
stock will appreciate in value or even maintain the price at which our investors have purchased their shares.

We are an “emerging growth company,” and will be able take advantage of reduced disclosure requirements applicable to “emerging
growth companies,” which could make our common stock less attractive to investors.

We are an “emerging growth company,” as defined in the Jumpstart Our Business Startups Act of 2012, or JOBS Act, and, for as
long  as  we  continue  to  be  an  “emerging  growth  company,”  we  intend  to  take  advantage  of  certain  exemptions  from  various  reporting
requirements  applicable  to  other  public  companies  but  not  to  “emerging  growth  companies,”  including,  but  not  limited  to,  not  being
required  to  comply  with  the  auditor  attestation  requirements  of  Section  404  of  the  Sarbanes-Oxley Act,  reduced  disclosure  obligations
regarding  executive  compensation  in  our  periodic  reports  and  proxy  statements,  and  exemptions  from  the  requirements  of  holding  a
nonbinding advisory vote on executive compensation and stockholder approval of any golden parachute payments not previously approved.
We will remain an emerging growth company until the earlier of (1) January 1, 2020, (2) the last day of the first fiscal year in which our
annual gross revenues exceed $1.07 billion, (3) the date on which we become a “large accelerated filer” as defined in Rule 12b-2 under the
Securities Exchange Act of 1934, as amended, which would occur if the market value of our common stock that is held by non-affiliates
exceeds $700 million as of the last business day of our most recently completed second fiscal quarter or (4) the date on which we have
issued more than $1 billion in non-convertible debt during the preceding three-year period.

We  intend  to  take  advantage  of  these  reporting  exemptions  described  above  until  we  are  no  longer  an  “emerging  growth
company.”  Under  the  JOBS Act,  “emerging  growth  companies”  can  also  delay  adopting  new  or  revised  accounting  standards  until  such
time  as  those  standards  apply  to  private  companies.  We  have  irrevocably  elected  not  to  avail  ourselves  of  this  exemption  from  new  or
revised accounting standards and, therefore, we will be subject to the same new or revised accounting standards as other public companies
that are not “emerging growth companies.”

We  cannot  predict  if  investors  will  find  our  common  stock  less  attractive  if  we  choose  to  rely  on  these  exemptions.  If  some
investors find our common stock less attractive as a result of any choices to reduce future disclosure, there may be a less active trading
market for our common stock and our stock price may be more volatile.

43

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We incur significantly increased costs and devote substantial management time as a result of operating as a public company, , and we
expect these costs to increase particularly after we are no longer an “emerging growth company.”

As a public company, we incur significant legal, accounting and other expenses that we did not incur as a private company. For
example, we are required to comply with certain of the requirements of the Sarbanes-Oxley Act and the Dodd-Frank Wall Street Reform
and  Consumer  Protection Act,  as  well  as  rules  and  regulations  subsequently  implemented  by  the  SEC,  including  the  establishment  and
maintenance of effective disclosure and financial controls and changes in corporate governance practices. We expect that compliance with
these requirements will increase our legal and financial compliance costs and will make some activities more time consuming and costly. In
addition, we expect that our management and other personnel will need to divert attention from operational and other business matters to
devote substantial time to these public company requirements. In particular, we expect to incur significant expenses and devote substantial
management effort toward ensuring compliance with the requirements of Section 404 of the Sarbanes-Oxley Act. In addition, after we are
no longer qualify as an “emerging growth company,” we expect to incur additional management time and cost to comply with the more
stringent reporting requirements applicable to companies that are deemed accelerated filers or large accelerated filers, including complying
with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act. We currently do not have an internal audit function, and
we  will  need  to  hire  or  contract  for  additional  accounting  and  financial  staff  with  appropriate  public  company  experience  and  technical
accounting knowledge.

We cannot predict or estimate the amount of additional costs we may incur as a result of becoming a public company or the timing

of such costs.

There may be limitations on the effectiveness of our internal controls, and a failure of our control systems to prevent error or fraud may
materially harm our company.

Proper systems of internal controls over financial accounting and disclosure are critical to the operation of a public company. As
of December 31, 2017, we had 47 full-time employees, which results in a lack of segregation of duties, and we may be unable to effectively
establish such systems, especially in light of the fact that we expect to operate as a publicly reporting company. This would leave us without
the ability to reliably assimilate and compile financial information about our company and significantly impair our ability to prevent error
and detect fraud, all of which would have a negative impact on our company from many perspectives.

Moreover, we do not expect that disclosure controls or internal control over financial reporting will prevent all error and all fraud.
A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control system’s
objectives will be met. Further, the design of a control system must reflect the fact that there are resource constraints and the benefits of
controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can
provide absolute assurance that all control issues and instances of fraud, if any, have been detected. Failure of our control systems to detect
or prevent error or fraud could materially adversely impact us.

We  may  be  unable  to  complete  our  analysis  of  our  internal  controls  over  financial  reporting  in  a  timely  manner,  or  these  internal
controls  may  not  be  determined  to  be  effective,  which  may  adversely  affect  investor  confidence  in  our  company  and,  as  a  result,  the
value of our common stock.

We  are  required,  pursuant  to  Section  404  of  the  Sarbanes-Oxley Act,  to  furnish  a  report  by  our  management  on,  among  other
things, the effectiveness of our internal control over financial reporting. This assessment includes disclosure of any material weaknesses
identified by our management in our internal control over financial reporting.

We may not be able to complete our evaluation, testing and any required remediation in a timely fashion. During the evaluation
and testing process, if we identify one or more material weaknesses in our internal control over financial reporting, we will be unable to
assert that our internal controls are effective.

If we are unable to assert that our internal control over financial reporting is effective, or, if applicable, our independent registered
public accounting firm is unable to express an opinion on the effectiveness of our internal controls, we could lose investor confidence in
the  accuracy  and  completeness  of  our  financial  reports,  which  would  cause  the  price  of  our  common  stock  to  decline,  and  we  may  be
subject to investigation or sanctions by the SEC. We will also be required to disclose changes made in our internal control and procedures
on a quarterly basis.

Our  remediation  efforts  may  not  enable  us  to  avoid  a  material  weakness  in  our  internal  control  over  financial  reporting  in  the
future. Any of the foregoing occurrences, should they come to pass, could negatively impact the public perception of our company, which
could have a negative impact on our stock price.

Upon dissolution of our company, you may not recoup all or any portion of your investment.

In  the  event  of  a  liquidation,  dissolution  or  winding-up  of  our  company,  whether  voluntary  or  involuntary,  the  proceeds  and/or
assets of our company remaining after giving effect to such transaction, and the payment of all of our debts and liabilities and distributions
required to be made to holders of any outstanding preferred stock will then be distributed to the stockholders of common stock on a pro rata
basis. There can be no assurance that we will have available assets to pay to the holders of common stock, or any amounts, upon such a
liquidation, dissolution or winding-up of our Company. In this event, you could lose some or all of your investment.

44

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Our ability to use our net operating loss carryforwards and certain other tax attributes may be limited.

As a result of our merger in April 2014 with Corbus Pharmaceuticals, Inc., our wholly-owned subsidiary, our ability to utilize our
federal net operating loss, carryforwards and federal tax credit prior to that date may be limited under Sections 382 of the Internal Revenue
Code. The limitations apply if an “ownership change,” as defined by Section 382, occurs. Generally, an ownership change occurs if the
percentage of the value of the stock that is owned by one or more direct or indirect “five percent shareholders” increases by more than 50
percentage  points  over  their  lowest  ownership  percentage  at  any  time  during  the  applicable  testing  period  (typically  three  years).  In
addition,  future  changes  in  our  stock  ownership,  which  may  be  outside  of  our  control,  may  trigger  an  “ownership  change”  and,
consequently,  Section  382  limitations. As  a  result,  if  we  earn  net  taxable  income,  our  ability  to  use  our  pre-change  net  operating  loss
carryforwards and other tax attributes to offset United States federal taxable income may be subject to limitations, which could potentially
result in increased future tax liability to us.

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

On  December  22,  2017,  President  Trump  signed  into  law  new  tax  legislation,  or  the  Tax Act,  which  significantly  reforms  the
Internal  Revenue  Code  of  1986,  as  amended.  The  Tax  Act,  among  other  things,  contains  significant  changes  to  corporate  taxation,
including  reduction  of  the  corporate  tax  rate  from  a  top  marginal  rate  of  35%  to  a  flat  rate  of  21%;  limitation  of  the  tax  deduction  for
interest  expense  to  30%  of  adjusted  earnings  (except  for  certain  small  businesses);  limitation  of  the  deduction  of  net  operating  losses
generated  in  tax  years  beginning  after  December  31,  2017  to  80%  of  taxable  income,  indefinite  carryforward  of  net  operating  losses
generated in tax years ending after 2017 and elimination of net operating loss carrybacks for net operating losses generated in tax years
ending after 2017; one-time taxation of offshore earnings at reduced rates regardless of whether they are repatriated; current inclusion in
U.S. federal taxable income of certain earnings of controlled foreign corporations, mandatory capitalization of research and development
expenses beginning in 2022; immediate deductions for certain new investments instead of deductions for depreciation expense over time;
further  deduction  limits  on  executive  compensation;  and  modifying,  repealing  and  creating  many  other  business  deductions  and  credits,
including the reduction in the orphan drug credit from 50% to 25% of qualifying expenditures. We continue to examine the impact this tax
reform legislation may have on our business. Notwithstanding the reduction in the corporate income tax rate, the overall impact of the Tax
Act  is  uncertain  and  our  business  and  financial  condition  could  be  adversely  affected.  The  impact  of  this  tax  reform  on  holders  of  our
common stock is also uncertain and could be adverse. This periodic report does not discuss any such tax legislation or the manner in which
it might affect us or our stockholders in the future. We urge our stockholders to consult with their legal and tax advisors with respect to
such legislation.

Our certificate of incorporation, as amended, allows for our board to create new series of preferred stock without further approval by
our stockholders, which could adversely affect the rights of the holders of our common stock.

Our board of directors has the authority to fix and determine the relative rights and preferences of preferred stock. We anticipate
that  our  board  of  directors  will  have  the  authority  to  issue  up  to  10,000,000  shares  of  our  preferred  stock  without  further  stockholder
approval. As  a  result,  our  board  of  directors  could  authorize  the  issuance  of  a  series  of  preferred  stock  that  would  grant  to  holders  the
preferred right to our assets upon liquidation and the right to receive dividend payments before dividends are distributed to the holders of
common stock. In addition, our board of directors could authorize the issuance of a series of preferred stock that has greater voting power
than our common stock or that is convertible into our common stock, which could decrease the relative voting power of our common stock
or result in dilution to our existing stockholders.

Item 1B. UNRESOLVED STAFF COMMENTS

Not applicable.

Item 2.

PROPERTIES

Our  principal  offices  are  located  at  500  River  Ridge  Drive,  Norwood,  MA  02062.  On August  21,  2017,  we  entered  into  a  lease
agreement (“the August 2017 Lease Agreement”) with the same landlord, pursuant to which we agreed to lease 32,733 square feet of office
space. The initial term of the August 2017 Lease Agreement is for a period of seven years and commenced in February 2018. The base rent
pursuant to the August 2017 Lease Agreement ranges from approximately $470,000 for the first year to approximately $908,000 for the
seventh year. We believe our facilities are adequate for our foreseeable needs.

45

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 3. LEGAL PROCEEDINGS

We are not currently subject to any material legal proceedings. However, we may from time to time become a party to various legal

proceedings arising in the ordinary course of our business.

Item 4.

MINE SAFETY DISCLOSURES

Not applicable.

46

 
 
 
 
 
 
 
 
PART II

Item 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER

PURCHASES OF EQUITY SECURITIES

Market Information

Our common stock is currently listed on the Nasdaq Global Market under the symbol “CRBP.” Our shares of common stock began

trading on the Nasdaq Capital Market under the symbol “CRBP” effective April 16, 2015.

The following table contains information about the range of high and low sale prices for our common stock for each quarter during

the last two years. The source of these high and low sales prices was the Nasdaq Global Market and the Nasdaq Capital Market.

Fiscal Year Ended December 31, 2017
First Quarter,
Second Quarter
Third Quarter
Fourth Quarter

Fiscal Year Ended December 31, 2016
First Quarter
Second Quarter
Third Quarter
Fourth Quarter

Dividends

High Sales
Price

Low Sales
Price

10.50    $
8.45    $
7.90    $
8.75    $

6.15 
5.30 
5.60 
6.40 

High Sales
Price

Low Sales
Price

1.95    $
3.85    $
7.88    $
10.78    $

1.01 
1.78 
2.68 
4.65 

  $
  $
  $
  $

  $
  $
  $
  $

We  have  never  declared  or  paid  cash  dividends  on  our  common  stock.  We  do  not  intend  to  declare  or  pay  cash  dividends  on  our
common  stock  for  the  foreseeable  future,  but  currently  intend  to  retain  any  future  earnings  to  fund  the  development  and  growth  of  our
business. The payment of cash dividends if any, on the common stock will rest solely within the discretion of our board of directors and
will depend, among other things, upon our earnings, capital requirements, financial condition, and other relevant factors.

Record Holders

As of March 6, 2018, there are approximately 91 record holders of shares of common stock.

Shareholder Return Performance Graph.

The graph below compares the cumulative total return of holders of our common stock with the cumulative total returns of the Russell

2000 (the “RUT Index”), and the S&P Biotechnology Select Industry Index (the “S&P Index”).

The  graph  tracks  the  performance  of  a  $100  investment  in  our  common  stock,  in  the  RUT  Index,  and  the  S&P  Index  (with  the
reinvestment of all dividends) from November 25, 2014, the date which we first registered under the Securities Exchange Act, to December
31, 2017.

47

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 6.

SELECTED FINANCIAL DATA

Consolidated Statements of Operations Data  

Revenue from awards
Operating expenses:

Research and development
General and administrative
Total operating expenses

Operating loss
Other income (expense):

Interest income (expense), net
Foreign currency exchange gain (loss)
Change in fair value of warrant liability
Forgiveness of interest on note payable
Gain on settlement of debt

Other income (expense), net

Net loss
Net loss per share, basic and diluted
Weighted average number of common shares
outstanding, basic and diluted

Consolidated Balance Sheet Data

For the Years Ended December 31,
2015

2014

2013

2017
2,440,195    $

  $

2016
1,911,424   

26,038,965   
8,964,046   
35,003,011   
(32,562,816)  

15,436,735   
6,459,747   
21,896,482   
(19,985,058)  

183,112   
(41,908)  
—   
—   
—   
141,204   

477   
(14,094)  
—   
—   
—   
(13,617)  
  $ (32,421,612)   $ (19,998,675)  
(0.49)  
  $

(0.65)   $

648,382   

—   

— 

5,888,659   
3,613,416   
9,502,075   
(8,853,693)  

977   
1,977   
—   
—   
—   
2,954   
(8,850,739)  
(0.28)  

1,255,535   
1,391,638   
2,647,173   
(2,647,173)  

(21,906)  
4,570   
(28,448)  
7,466   
145,006   
106,688   
(2,540,485)  
(0.13)  

210,670 
346,606 
557,276 
(557,276)

(44,360)
(2,692)
1,978 
— 
— 
(45,074)
(602,350)
(0.09)

50,176,953   

41,137,518   

31,350,145   

  20,159,861   

6,964,788 

2017

2016

At December 31,
2015

2014

2013

Working capital (deficit)
Total Assets
Total Long-Term Liabilities
Total Stockholders’ Equity (Deficit)

  $ 57,300,055    $

66,978,161   
989,925   
57,783,561   

8,504,340   
17,888,182   
70,356   
8,919,235   

9,084,757   
12,875,303   
260,260   
8,985,010   

5,794,961   
6,600,773   
—   
5,862,733   

(343,346)
305,520 
331,243 
(1,783,198)

48

 
 
 
 
 
 
   
   
   
   
 
 
 
 
 
 
    
 
    
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
 
 
 
 
   
 
   
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 7. MANAGEMENT’S DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF

OPERATIONS

The  following  discussion  and  analysis  of  our  financial  condition  and  results  of  operations  should  be  read  together  with  our  financial
statements and the related notes and the other financial information included elsewhere in this Annual Report. This discussion contains
forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated in these
forward-looking  statements  as  a  result  of  various  factors,  including  those  discussed  below  and  elsewhere  in  this  Annual  Report,
particularly those under “Risk Factors.”

Overview

We are a Phase 3, clinical stage pharmaceutical company focused on the development and commercialization of novel therapeutics
to treat rare, chronic and serious inflammatory and fibrotic diseases with clear unmet medical needs. Our product, lenabasum, is a novel
synthetic,  oral,  endocannabinoid-mimetic  drug  designed  to  resolve  chronic  inflammation  and  halt  fibrotic  processes  without  causing
immunosuppression. We are currently developing lenabasum to treat four life-threatening diseases: systemic sclerosis (SSc), cystic fibrosis
(CF), dermatomyositis (DM) and systemic lupus erythematosus (SLE).

Lenabasum is a synthetic, rationally-designed, oral small-molecule drug that selectively binds to the cannabinoid receptor type 2,
or  CB2  found  on  activated  immune  cells,  fibroblasts  and  other  cell  types  including  muscle  and  bone  cells.  Lenabasum  stimulates  the
production  of  Specialized  Pro-Resolving  Lipid  Mediators  (SPMs)  that  act  to  resolve  inflammation  and  halt  fibrosis  by  activating
endogenous  pathways.  These  pathways  are  activated  in  healthy  individuals  during  the  course  of  normal  immune  responses  but  are
dysfunctional in patients with chronic inflammatory and fibrotic diseases. By its binding to CB2, lenabasum drives innate immune responses
from the activation phase into the resolution phase. CB2 plays a central role in modulating and resolving inflammation by, in effect, turning
heightened inflammation “off” and restoring homeostasis. This has been demonstrated in animal models lacking CB2 as well as humans
with genetic polymorphism in the CB2 gene, as these exhibit excessive inflammation and fibrosis in response to activators of the innate
immune system.

Lenabasum  has  generated  positive  clinical  data  in  three  consecutive  Phase  2  studies  in  diffuse  cutaneous  SSc,  CF  and  skin-
predominant DM. Lenabasum is currently being evaluated in a Phase 3 SSc study that is expected to enroll 354 patients, a Phase 2b CF
study  that  is  expected  to  enroll  415  patients  (that  is  being  supported  by  a  development  award  (the  “2018  CFF Award”)  from  the  Cystic
Fibrosis Foundation (“CFF”)), and a Phase 2 SLE study that is expected to enroll 100 patients and is being funded by a grant through the
National Institutes of Health (“NIH”) grant. In DM, the Company plans to consult with the FDA on the protocol design for the next clinical
study,  which  the  Company  expects  to  commence  before  the  end  of  2018.  Open-label  extension  studies  are  ongoing  in  SSc  and  DM
following the completion of the Phase 2 studies in these indications.

The U.S. Food and Drug Administration, or the FDA, granted lenabasum Orphan Designation as well as Fast Track Status for both

SSc and CF. The European Medicines Authority, or the EMA, granted lenabasum Orphan Designation for both SSc and CF.

Since our inception, we have devoted substantially all of our efforts to business  planning,  research  and  development,  recruiting
management  and  technical  staff,  acquiring  operating  assets  and  raising  capital.  Our  research  and  development  activities  have  included
conducting  pre-clinical  studies,  developing  manufacturing  methods  and  the  manufacturing  of  our  drug  lenabasum  for  clinical  trials  and
conducting clinical studies in patients. Three of the four clinical programs for lenabasum have been supported, by non-dilutive awards and
grants. The National Institutes of Health, or NIH, is funding the majority of the clinical development costs for the DM and SLE Phase 2
clinical trials, and the Phase 2 clinical trial in cystic fibrosis has been supported by a $5 million award from the Cystic Fibrosis Foundation
Therapeutics, Inc., or CFFT, a non-profit drug discovery and development affiliate of the Cystic Fibrosis Foundation.

Financial Operations Overview

We are a clinical stage pharmaceutical company and have not generated any revenues from the sale of products. We have never
been profitable and at December 31, 2017, we had an accumulated deficit of approximately $65.7 million. Our net losses for the years
ended December 31, 2017, 2016 and 2015 were approximately $32,422,000, $19,999,000 and $8,851,000, respectively.

49

 
 
 
 
 
 
 
 
 
 
 
 
 
 
We  expect  to  continue  to  incur  significant  expenses  and  increasing  operating  losses  for  the  foreseeable  future.  We  expect  our
expenses to increase significantly in connection with our ongoing activities to develop, seek regulatory approval of and commercialize
lenabasum. Accordingly, we will need additional financing to support our continuing operations. We will seek to fund our operations
through public or private equity or debt financings or other sources, which may include government grants and collaborations with third
parties. Adequate additional financing may not be available to us on acceptable terms, or at all. Our failure to raise capital as and when
needed  would  have  a  negative  impact  on  our  financial  condition  and  our  ability  to  pursue  our  business  strategy.  We  will  need  to
generate significant revenues to achieve profitability, and we may never do so.

We expect to continue to incur significant expenses and increasing operating losses for at least the next several years. We expect

our expenses will increase substantially in 2018 and in the future in connection with our ongoing activities, as we:

conduct clinical trials for lenabasum in scleroderma, cystic fibrosis, DM, systemic lupus erythematosus and other indications;

continue our research and development efforts;

manufacture clinical study materials and develop commercial scale manufacturing capabilities;

seek regulatory approval for our product candidates;

add personnel to support development of our product candidates; and

operate as a public company.

●

●

●

●

●

●

Revenue

To date, we have not generated any revenues from the sales of products. We do not expect to generate revenue from product sales
unless and until we successfully complete development and obtain regulatory approval for the marketing of lenabasum, which we expect
will take a number of years and is subject to significant uncertainty.

We  recognized  $2,440,195,  $1,911,424  and  $648,382  of  revenue  from  awards  in  the  years  ended  December  31,  2017,  2016  and
December 31, 2015, respectively, related to an award agreement (the “2015 CFFT Award Agreement) we entered into in fiscal 2015 with
the CFFT, pursuant to which we received a development award (the “2015 CFFT Award”) for up to $5 million in funding. We received a
total of $5 million in payments under the 2015 CFFT Award as outlined below. The payments received under the 2015 CFFT Award were
recorded as deferred revenue when the triggering event to receive those amounts occurred and were amortized on a straight-line basis over
the expected duration of the remaining performance period under the 2015 CFFT Award, which concluded in the third quarter of 2017.

Upon the execution of the 2015 CFFT Award Agreement, we received a payment of $1,250,000 in May 2015. In November 2015,
we received a second payment of $1,250,000 upon the achievement of a milestone for dosing the first patient. In August 2016, we received
a third payment from the CFFT in the amount of $1,000,000 for achieving a milestone in July 2016 related to dosing the median clinical
trial  patient.  In  January  2017,  we  received  a  fourth  payment  from  the  CFFT  in  the  amount  of  $1,000,000  for  achieving  a  milestone  in
December 2016 related to completing the final visit for the final patient. In November 2017, we received the fifth and final payment from
the  CFFT  in  the  amount  of  $500,000  for  achieving  a  milestone  in  September  2017  related  to  completing  the  final  integrated  statistical
report related to the Phase 2 CF clinical trial.

Pursuant  to  the  terms  of  the  Award  agreement,  we  are  obligated  to  make  royalty  payments  to  CFFT  contingent  upon
commercialization of lenabasum in the Field of Use (as defined in the CFFT Award Agreement) as follows: (i) a royalty payment equal to
five  times  the  amount  we  receive  under  the  CFFT  Award  Agreement,  up  to  $25  million,  payable  in  three  equal  annual  installments
following the first commercial sale of lenabasum, the first of which is due within 90 days following the first commercial sale of lenabasum,
(ii)  a  royalty  payment  to  CFFT  equal  to  the  amount  we  receive  under  the  CFFT Award Agreement,  up  to  $5  million,  due  in  the  first
calendar  year  in  which  the  aggregate  cumulative  net  sales  of  lenabasum  in  the  Field  of  Use  exceed  $500  million,  and  (iii)  royalty
payment(s) to CFFT of up to approximately $15 million if we transfer, sell or license lenabasum in the Field of Use other than for certain
clinical or development purposes, or if we enter into a change of control transaction, with such payment(s) to be credited against the royalty
payments  due  upon  commercialization.  The  Field  of  Use  is  defined  in  the  CFFT Award Agreement  as  the  treatment  in  humans  of  CF,
asbestosis, bronchiectasis, byssinosis, chronic bronchitis/COPD hypersensitivity pneumonitis, pneumoconiosis, primary ciliary dyskinesis,
sarcoidosis and silicosis. Either CFFT or we may terminate the CFFT Award Agreement for cause, which includes our material failure to
achieve  certain  commercialization  and  development  milestones.  Our  payment  obligations,  if  any,  would  survive  the  termination  of  the
CFFT Award Agreement.

50

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
On January 26, 2018, we entered into the Cystic Fibrosis Program Related Investment Agreement (“Investment Agreement) with the
Cystic  Fibrosis  Foundation  (“CFF”),  a  non-profit  drug  discovery  and  development  corporation,  pursuant  to  which  we  received  a
development award for up to $25 million in funding (the “2018 CFF Award”) to support a Phase 2b Clinical Trial (the “Phase 2b Clinical
Trial”) of lenabasum in patients with cystic fibrosis of which we received $6.25 million to date. The remainder of the 2018 CFF Award is
payable to us incrementally upon the achievement of the remaining milestones related to the progress of the Phase 2b Clinical Trial, as set
forth in the Investment Agreement. We will assess this agreement for accounting under ASC 606 in the first quarter of 2018, including if
this agreement falls under the scope of such standard. We have not yet determined the potential effect the new standard will have on our
consolidated financial statements.

Pursuant to the terms of the Investment Agreement, we are obligated to make certain royalty payments to CFF, including a royalty
payment of one and one-half times the amount of the 2018 CFF Award, payable in cash within sixty days upon the first receipt of approval
of  lenabasum  in  the  United  States  and  a  second  royalty  payment  of  one  and  one-half  times  the  amount  of  the  2018  CFF Award  upon
approval in another major market, as set forth in the Investment Agreement (the “Approval Royalty”). At our election, we may satisfy the
first of the two Approval Royalties in registered shares of our common stock.

Additionally, we are obligated to make (i) royalty payments to CFF of two and one-half percent of net sales from lenabasum due
within sixty days after any quarter in which such net sales occur in the Field, as defined in the Investment Agreement, (ii) royalty payments
to CFF of one percent of net sales of Non-Field Products, as defined in the Investment Agreement due within sixty days after any quarter in
which  such  net  sales  occur,  and  (iii)  royalty  payments  to  CFF  of  ten  percent  of  any  amount  that  we  and  our  stockholders  receive  in
connection with the license, sale, or other transfer to a third party of lenabasum, if indicated for the treatment or prevention of CF, or a
change  of  control  transaction,  except  that  such  payment  shall  not  exceed  five  times  the  amount  of  the  2018  CFF  Award,  with  such
payments to be credited against any other net sales royalty payments due. Either CFF or we may terminate the Investment Agreement for
cause,  which  includes  our  material  failure  to  achieve  certain  commercialization  and  development  milestones.  Our  payment  obligations
survive the termination of the Investment Agreement.

Research and Development

Research and development expenses are incurred for the development of lenabasum and consist primarily of payroll and payments to
contract research and development companies. To date, these costs are related to generating pre-clinical data and the cost of manufacturing
lenabasum for clinical trials and conducting clinical trials. These costs are expected to increase significantly in the future as lenabasum is
continued to be evaluated in additional later stage clinical trials.

General and Administrative Expenses

General  and  administrative  expenses  consist  primarily  of  payroll,  rent  and  professional  services  such  as  accounting  and  legal
services. We anticipate that our general and administrative expenses will increase significantly during 2018 and in the future as we increase
our headcount to support our continued research and development and the potential commercialization of our product candidates. We also
anticipate  increased  expenses  related  to  audit,  legal,  and  tax-related  services  associated  with  maintaining  compliance  with  NASDAQ
exchange listing and SEC requirements, director and officer insurance, and investor relations costs associated with being a public company.

Other Income (Expense), Net

Other income (expense), net consists primarily of interest income we earn on interest-bearing accounts, interest expense incurred on

our outstanding debt, and foreign currency exchange transaction losses and gains.

Critical Accounting Policies and Estimates

Our consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United
States of America. The preparation of these financial statements 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.

On  an  ongoing  basis,  we  evaluate  our  estimates  and  judgments  for  all  assets  and  liabilities,  including  those  related  to  stock-based
compensation  expense  and  accrued  research  and  development  expense.  We  base  our  estimates  and  judgments  on  historical  experience,
current  economic  and  industry  conditions  and  on  various  other  factors  that  are  believed  to  be  reasonable  under  the  circumstances.  This
forms the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources.
Actual results may differ from these estimates under different assumptions or conditions.

51

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We  believe  that  full  consideration  has  been  given  to  all  relevant  circumstances  that  we  may  be  subject  to,  and  the  consolidated
financial  statements  accurately  reflect  our  best  estimate  of  the  results  of  operations,  financial  position  and  cash  flows  for  the  periods
presented.

Accrued Research and Development Expenses

As part of the process of preparing financial statements, we are required to estimate and accrue expenses, the largest of which are
research  and  development  expenses.  This  process  involves:  communicating  with  our  applicable  personnel  to  identify  services  that  have
been performed on our behalf and estimating the level of service performed and the associated cost incurred for the service when we have
not yet been invoiced or otherwise notified of actual cost; estimating and accruing expenses in our financial statements as of each balance
sheet  date  based  on  facts  and  circumstances  known  to  us  at  the  time;  and  periodically  confirming  the  accuracy  of  our  estimates  with
selected service providers and making adjustments, if necessary.

Examples of estimated research and development expenses that we accrue include:

●

●

●

●

fees paid to CROs in connection with nonclinical studies;

fees paid to contract manufacturers in connection with the production of lenabasum for clinical trials ;

fees paid to CRO and research institutions in connection with conducting of clinical studies; and

professional service fees for consulting and related services.

We base our expense accruals related to clinical studies on our estimates of the services performed pursuant to contracts with multiple
research institutions and clinical research organizations that conduct and manage clinical studies on our behalf. The financial terms of these
agreements vary from contract to contract and may result in uneven payment flows. Payments under some of these contracts depend on
factors,  such  as  the  successful  enrollment  of  patients  and  the  completion  of  clinical  study  milestones.  Our  service  providers  invoice  us
monthly in arrears for services performed. In accruing service fees, we estimate the time period over which services will be performed and
the  level  of  effort  to  be  expended  in  each  period.  If  we  do  not  identify  costs  that  we  have  begun  to  incur  or  if  we  underestimate  or
overestimate the level of services performed or the costs of these services, our actual expenses could differ from our estimates.

To date, we have not experienced significant changes in our estimates of accrued research and development expenses following each
applicable reporting period. However, due to the nature of estimates, we cannot assure you that we will not make changes to our estimates
in  the  future  as  we  become  aware  of  additional  information  regarding  the  status  or  conduct  of  our  clinical  studies  and  other  research
activities.

Stock-Based Compensation

Stock options are granted with an exercise price at no less than fair market value at the date of the grant. The stock options normally

expire ten years from the date of grant. Stock option awards vest upon terms determined by our board of directors.

We  recognize  compensation  costs  resulting  from  the  issuance  of  stock-based  awards  to  employees,  members  of  our  Board  of
directors and consultants. The fair value of each option grant was estimated as of the date of grant using the Black-Scholes option-pricing
model. The fair value is amortized as compensation cost on a straight-line basis over the requisite service period of the awards, which is
generally  the  vesting  period.  Due  to  our  limited  operating  history,  we  estimated  our  volatility  in  consideration  of  a  number  of  factors,
including  the  volatility  of  comparable  public  companies  and,  commencing  in  2015,  we  also  included  the  volatility  of  our  own  common
stock.  We  use  historical  data,  as  well  as  subsequent  events  occurring  prior  to  the  issuance  of  the  consolidated  financial  statements,  to
estimate option exercise and employee forfeitures within the valuation model. The expected term of options granted to employees under
our  stock  plans  is  based  on  the  average  of  the  contractual  term  (generally  10  years)  and  the  vesting  period  (generally  48  months).  The
expected term of options granted under the 2014 Plan, all of which qualify as “plain vanilla” per SEC Staff Accounting Bulletin 107, is
based on the average of the 6.25 years. For non-employee options, the expected term is the contractual term and stock options granted to
non-employee  consultants  are  revalued  at  the  end  of  each  reporting  period  until  vested  and  changes  in  their  fair  value  are  recorded  as
adjustments  to  expense  over  the  related  vesting  period.  The  risk-free  rate  is  based  on  the  yield  of  a  U.S.  Treasury  security  with  a  term
consistent with the option. We estimate the forfeiture rate at the time of grant and revise it, if necessary, in subsequent periods if actual
forfeitures  differ  from  those  estimates.  Forfeitures  were  estimated  based  on  management’s  expectation  through  industry  knowledge  and
historical data. We have never paid dividends on our common stock and do not anticipate paying dividends on our common stock in the
foreseeable  future.  Accordingly,  we  have  assumed  no  dividend  yield  for  purposes  of  estimating  the  fair  value  of  our  share-based
compensation.

52

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The  following  assumptions  were  used  to  estimate  the  fair  value  of  stock  options  granted  using  the  Black-Scholes  option  pricing

model for the years ended December 31, 2017, 2016 and 2015 is as follows:

Risk free interest rate
Expected dividend yield
Expected term in years
Expected volatility
Estimated forfeiture rate

Emerging Growth Company Status

2017

2016

2015

2.17% 
0% 

7.00 
86.36% 
5.00% 

1.70% 
0% 

6.66 
90.39% 
5.00% 

1.85%
0%

6.73 
90.68%
4.83%

Under Section 107(b) of the Jumpstart Our Business Startups Act of 2012, emerging growth companies can delay adopting new or
revised  accounting  standards  until  such  time  as  those  standards  apply  to  private  companies.  We  have  irrevocably  elected  not  to  avail
ourselves  of  this  exemption  from  new  or  revised  accounting  standards  and,  therefore,  we  will  be  subject  to  the  same  new  or  revised
accounting standards as other public companies that are not emerging growth companies.

Results of Operations

Comparison of Year Ended 2017 to 2016

Revenue  from  Awards.  We  have  recognized  approximately  $2,440,000  and  $1,911,000  of  revenue  from  awards  in  the  years  ended
December 31, 2017 and December 31, 2016, respectively, related to the funding from the 2015 CFFT Award. We have received a total of
$5  million  in  payments  since  the  inception  of  the  2015  CFFT Award  as  outlined  below.  The  payments  received  under  the  2015  CFFT
Award were recorded as deferred revenue when the triggering event to receive those amounts occurred and were amortized on a straight-
line  basis  over  the  expected  duration  of  the  remaining  performance  period  under  the  2015  CFFT Award,  which  concluded  in  the  third
quarter of 2017.

Upon  the  execution  of  the  2015  CFFT Award Agreement,  we  received  a  payment  of  $1,250,000  in  May  2015.  In  November  2015,  we
received a second payment of $1,250,000 upon the achievement of a milestone for dosing the first patient. In August 2016, we received a
third payment from the CFFT in the amount of $1,000,000 for achieving a milestone in July 2016 related to dosing the median clinical trial
patient. In January 2017, we received a fourth payment from the CFFT in the amount of $1,000,000 for achieving a milestone in December
2016 related to completing the final visit for the final patient. In November 2017, we received the fifth and final payment from the CFFT in
the amount of $500,000 for achieving a milestone in September 2017 related to completing the final integrated statistical report related to
the Phase 2 CF clinical trial.

Research  and  Development. Research  and  Development  expenses  for  the  year  ended  December  31,  2017  totaled  approximately
$26,039,000, an increase of $10,602,000 over the $15,437,000 recorded for the year ended December 31, 2016. The increase in fiscal 2017
as  compared  to  fiscal  2016  was  primarily  attributable  to  increases  of  approximately  $6,577,000  in  clinical  trial  costs,  $2,646,000  in
compensation costs, and $1,379,000 in stock-based compensation expense.

General  and  Administrative.  General  and  Administrative  expense  for  the  year  ended  December  31,  2017  totaled  approximately
$8,964,000,  an  increase  of  $2,504,000  over  the  $6,460,000  recorded  for  year  ended  December  31,  2016.  The  increase  in  fiscal  2017  as
compared  to  fiscal  2016  was  primarily  attributable  to  increases  of  approximately  $1,152,000  in  stock-based  compensation  expense,
$429,000  in  compensation  costs,  $289,000  in  investor  relations  and  public  company  costs,  $260,000  in  recruiting  costs,  $150,000  in
insurance costs, and $113,000 in consulting expenses.

Other  Income  (Expense),  Net.  Other  income,  net  for  fiscal  2017  was  approximately  $141,000  as  compared  to  other  expense,  net  of
approximately  $14,000  recorded  for  fiscal  2016  and  was  primarily  attributable  to  an  increase  in  net  interest  income  of  approximately
$183,000 due to increased cash balances in 2017 as compared to 2016, offset partially by increases in foreign currency exchange transaction
losses of approximately $28,000.

53

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Comparison of Year Ended 2016 to 2015

Revenue from Awards.  We have recognized approximately $1,911,000 and $648,000 of revenue related to the 2015 CFFT Award in the
years ended December 31, 2016 and December 31, 2015, respectively. As of December 31, 2016, we had billed and received a total of $4.5
million in payments since the inception of the 2015 CFFT Award as outlined below The payments received under the 2015 CFFT Award
were recorded as deferred revenue when the triggering event to receive those amounts occurred and were amortized on a straight-line basis
over the expected duration of the remaining performance period under the 2015 CFFT Award.

Upon  the  execution  of  the  2015  CFFT Award Agreement,  we  received  a  payment  of  $1,250,000  in  May  2015.  In  November  2015,  we
received a second payment of $1,250,000 upon the achievement of a milestone for dosing the first patient. In August 2016, we received a
third payment from the CFFT in the amount of $1,000,000 for achieving a milestone in July 2016 related to dosing the median clinical trial
patient. In January 2017, we received a fourth payment from the CFFT in the amount of $1,000,000 for achieving a milestone in December
2016 related to completing the final visit for the final patient. In November 2017, we received the fifth and final payment from the CFFT in
the amount of $500,000 for achieving a milestone in September 2017 related to completing the final integrated statistical report related to
the Phase 2 CF clinical trial.

Research  and  Development. Research  and  Development  expenses  for  the  year  ended  December  31,  2016  totaled  approximately
$15,437,000, an increase of $9,548,000 over the $5,889,000 recorded for the year ended December 31, 2015. The increase in fiscal 2016 as
compared to fiscal 2015 was primarily attributable to increases of $7,132,000 in clinical trial costs, $1,447,000 in compensation costs, and
$969,000 in stock-based compensation expense.

General  and  Administrative.  General  and  Administrative  expense  for  the  year  ended  December  31,  2016  totaled  approximately
$6,460,000,  an  increase  of  $2,847,000  over  the  $3,613,000  recorded  for  year  ended  December  31,  2015.  The  increase  in  fiscal  2016  as
compared  to  fiscal  2015  was  primarily  attributable  to  increases  of  approximately  $1,251,000  in  stock-based  compensation  expense,
$997,000 in compensation costs, $375,000 in investor relations costs, and $213,000 in legal costs.

Other  Income  (Expense),  Net.  Other  expense,  net  for  fiscal  2016  was  approximately  $14,000  as  compared  to  other  income,  net  of
approximately $3,000 recorded for fiscal 2015 and was primarily attributable to an increase in foreign currency exchange transaction losses
recorded during fiscal 2016.

Liquidity and Capital Resources

Since inception, we have experienced negative cash flows from operations. We have financed our operations primarily through sales
of equity-related securities. In addition, the majority of the costs of the DM and SLE clinical trials have been or are expected to be funded
by NIH grants, and our Phase 2 cystic fibrosis clinical trial was partially funded by the 2015 CFFT Award. Our Phase 2b cystic fibrosis trial
is  being  supported  by  the  2018  CFF  Award.  At  December  31,  2017,  our  accumulated  deficit  since  inception  was  approximately
$65,698,000.

At December 31, 2017, we had total current assets of approximately $65,505,000 and current liabilities of approximately $8,205,000
resulting in working capital of approximately $57,300,000. Net cash used in operating activities for the year ended December 31, 2017 was
approximately  $27,797,000,  which  includes  a  net  loss  of  approximately  $32,422,000,  adjusted  for  non-cash  expenses  of  approximately
$6,855,000 principally related to stock-based compensation expense of $5,694,000 and deferred rent of $914,000, and for approximately
$2,230,000 of cash used by net working capital items.

Cash  used  in  investing  activities  for  the  year  ended  December  31,  2017  totaled  approximately  $707,000,  which  was  principally

related to construction costs in the fourth quarter of 2017 to build out our office space that we began occupying in February 2018.

Cash  provided  by  financing  activities  for  the  year  ended  December  31,  2017  totaled  approximately  $76,008,000.  On  February  28,
2017, we entered into a securities purchase agreement providing for the issuance and sale of 3,887,815 shares of our common stock in a
registered  direct  offering  to  institutional  and  accredited  investors  at  a  purchase  price  of  $7.00  per  share  with  net  proceeds  to  us  totaling
$27,177,102. In November 2016, we entered into a Controlled Equity OfferingSM Sales Agreement (“2016 Sales Agreement”) with Cantor
Fitzgerald pursuant to which Cantor Fitzgerald served as our sales agent to sell up to $35 million of shares of our common stock through an
“at the market offering.” During the year ended December 31, 2017, we received net proceeds of approximately $13,404,000 from sales of
our  common  stock  pursuant  to  the  2016  Sales Agreement,  net  of  3%  commission  paid  to  Cantor  Fitzgerald. All  sales  of  common  stock
under the 2016 Sales Agreement occurred in the first quarter of 2017, and we did not sell any shares of our common stock under the 2016
Sales Agreement during the remainder of 2017. The 2016 Sales Agreement was terminated in connection with the October 2017 Offering
discussed below.

On October 26, 2017, we consummated an underwritten public offering of shares of our common stock pursuant to which we sold an
aggregate of 5,347,500 shares of our common stock to institutional investors at a purchase price of $7.00 per share with net proceeds to us
totaling approximately $35,181,000 (“October 2017 Offering”).

54

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
During  the  year  ended  December  31,  2017,  we  also  received  proceeds  of  approximately  $189,490  from  the  issuance  of  272,734
shares of our common stock upon the exercise of stock options to purchase common stock. Cash provided by financing activities for the
year ended December 31, 2017 included proceeds from issuances of notes payable of $415,265, partially offset by principal payments on
notes payable of $354,161 in connection with our loan agreements with financing companies. The terms of the loan that we entered into in
November 2017 stipulate equal monthly payments of principal and interest payments of $41,975 over a ten-month period. Interest accrues
on this loan at an annual rate of 2.35%.

On  January  5,  2018,  we  entered  into  a  Controlled  Equity  OfferingSM  Sales Agreement  (“January  2018  Sales Agreement”)  with
Cantor Fitzgerald pursuant to which Cantor Fitzgerald is serving as our sales agent to sell up to $50 million of shares of our common stock
through an “at the market offering,” of which we have sold 1,500,000 shares for net proceeds of $11.3 million to date.

We expect our cash and cash equivalents of approximately $62.5 million at December 31, 2017 together with the $11.3 million of
net proceeds received from the January 2018 Sales Agreement and the up to $25 million of proceeds that we expect to receive under the
2018 CFF Award, of which we have received $6.25 million to date, to be sufficient to meet our operating and capital requirements through
the end of the fourth quarter of 2019, based on current planned expenditures. The remainder of the up to $25 million 2018 CFF Award is
payable to us incrementally upon the achievement of the remaining milestones related to the progress of the Phase 2b Clinical Trial, as set
forth in the Investment Agreement.

We will need to raise significant additional capital to continue to fund operations and the clinical trials for lenabasum. We may seek
to sell common stock, including sales under our January 2018 Sales Agreement, preferred stock or convertible debt securities, enter into a
credit  facility  or  another  form  of  third-party  funding  or  seek  other  debt  financing.  In  addition,  we  may  seek  to  raise  cash  through
collaborative  agreements  or  from  government  grants.  The  sale  of  equity  and  convertible  debt  securities  may  result  in  dilution  to  our
stockholders and certain of those securities may have rights senior to those of our common shares. If we raise additional funds through the
issuance of preferred stock, convertible debt securities or other debt financing, these securities or other debt could contain covenants that
would restrict our operations. Any other third-party funding arrangement could require us to relinquish valuable rights.

The source, timing and availability of any future financing will depend principally upon market conditions, and, more specifically, on
the progress of our clinical development programs. Funding may not be available when needed, at all, or on terms acceptable to us. Lack of
necessary  funds  may  require  us,  among  other  things,  to  delay,  scale  back  or  eliminate  expenses  including  some  or  all  of  our  planned
clinical trials.

Contractual Obligations and Commitments

The  following  table  presents  information  about  our  known  contractual  obligations  as  of  December  31,  2017.  It  does  not  reflect
contractual  obligations  that  may  have  arisen  or  may  arise  after  that  date.  Except  for  historical  facts,  the  information  in  this  section  is
forward-looking information.

Payments due by period

Contractual Obligations
Operating lease obligations (1)
Capital lease obligations (2)

Total

Total
5,474,623    $
4,922     
5,479,545    $

  $

  $

2018

    Fiscal 2019-2020     Fiscal 2021-2022  
1,685,750 
— 
1,685,750 

1,408,580    $

1,408,201    $

379   

445,333    $
4,543     
449,876    $

  After Fiscal 2022  
1,935,339 
  $
— 
1,935,339 

  $

(1) On August  21,  2017,  we  entered  into  a  lease  agreement  (“the August  2017  Lease Agreement”)  with  the  initial  term  of  a  period  of
seven  years  which  commenced  in  February  2018.  The  base  rent  pursuant  to  the  August  2017  Lease  Agreement  ranges  from
approximately  $470,000  for  the  first  year  to  approximately  $908,000  for  the  seventh  year.  The  September  2016 Amendment  was
terminated  upon  the  commencement  date  of  the August  2017  Lease Agreement. Additionally,  the August  2017  Lease Agreement
required  us  to  provide  a  standby  irrevocable  letter  of  credit  of  $400,000,  which  may  be  reduced,  if  we  are  not  in  default under  the
August 2017 Lease Agreement, to $300,000 and $200,000 on the third and fourth anniversary of the commencement date, respectively,
We  entered  into  an  unsecured  letter  of  credit  with  a  commercial  bank  for  $400,000  in  connection  with  the  August  2017  Lease
Agreement.

(2) On December 30, 2015, we entered into a lease agreement for a copier machine. The machine was placed in service in January 2016.

The lease is for a three-year term and includes a bargain purchase option at the end of the term.

We may enter into contracts in the normal course of business with clinical research organizations for clinical trials and clinical supply
manufacturing and with vendors for pre-clinical research studies, research supplies and other services and products for operating purposes.
These  contracts  generally  provide  for  termination  on  notice,  and  therefore,  we  believe  that  our  non-cancelable  obligations  under  these
agreements are not material. As of December 31, 2017, other than our leases in the table above, we had no material Contractual Obligations
or Commitments that will affect our future liquidity.

55

 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
Off-Balance Sheet Arrangements

We  do  not  have  any  off-balance  sheet  arrangements  that  have  or  are  reasonably  likely  to  have  a  current  or  future  effect  on  our
financial  condition,  changes  in  financial  condition,  revenues  or  expenses,  results  of  operations,  liquidity,  capital  expenditures  or  capital
resources that is material to investors.

Item 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Our exposure to market risk is limited to our cash and cash equivalents, all of which have maturities of three months or less. The
primary  objectives  of  our  investment  activities  are  to  preserve  principal,  provide  liquidity  and  maximize  income  without  significantly
increasing risk. Our primary exposure to market risk is interest income sensitivity, which is affected by changes in the general level of U.S.
interest rates. However, because of the short-term nature of the instruments in our portfolio, a sudden change in market interest rates would
not be expected to have a material impact on our financial condition and/or results of operation. We do not have any foreign currency or
other derivative financial instruments.

Item 8.

FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

See pages F-1 through F-20 following the Exhibit Index of this Annual Report on Form 10-K.

Item 9.

C H A N G E S IN  AND  DISAGREEMENTS  WITH  ACCOUNTANTS  ON  ACCOUNTING  AND  FINANCIAL
DISCLOSURE

None.

Item 9A. CONTROLS AND PROCEDURES

Evaluation of Our Disclosure Controls

We maintain disclosure controls and procedures that are designed to provide reasonable assurance that material information required
to  be  disclosed  in  our  periodic  reports  filed  under  the  Exchange Act  is  recorded,  processed,  summarized,  and  reported  within  the  time
periods  specified  in  the  SEC’s  rules  and  forms  and  to  provide  reasonable  assurance  that  such  information  is  accumulated  and
communicated to our management, our chief executive officer and our chief financial officer, to allow timely decisions regarding required
disclosure.  We  carried  out  an  evaluation,  under  the  supervision  and  with  the  participation  of  our  management,  including  our  principal
executive  and  principal  financial  officer,  of  the  effectiveness  of  the  design  and  operation  of  our  disclosure  controls  and  procedures,  as
defined in Rule 13(a)-15(e) under the Exchange Act. Based on this evaluation, our principal executive officer and principal financial officer
concluded that, as of December 31, 2017, our disclosure controls and procedures were effective.

Management’s Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules
13a-15(f) and 15d-15(f) under the Exchange Act. Under the supervision and with the participation of our management, including our Chief
Executive  Officer  and  Chief  Financial  Officer,  we  conducted  an  evaluation  of  the  effectiveness  of  our  internal  control  over  financial
reporting based on criteria established in the framework in Internal Control — Integrated Framework (2013) issued by the Committee of
Sponsoring Organizations of the Treadway Commission. Based on this evaluation, our management concluded that our internal control over
financial reporting was effective as of December 31, 2017.

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  risks  that  controls  may  become  inadequate  because  of
changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

This Annual Report does not include an attestation report of our independent registered public accounting firm because we are an
“emerging  growth  company,”  and  may  take  advantage  of  certain  exemptions  from  various  reporting  requirements  that  are  applicable  to
public companies that are not “emerging growth companies” including, but not limited to, not being required to comply with the auditor
attestation requirements of Section 404 of the Sarbanes-Oxley Act.

Changes in Internal Controls over Financial Reporting

During  the  year  ended  December  31,  2017,  there  have  been  no  changes  in  our  internal  control  over  financial  reporting  that  have
materially affected or are reasonably likely to materially affect our internal controls over financial reporting. From time to time, we make
changes to our internal control over financial reporting that are intended to enhance its effectiveness and which do not have a material effect
on our overall internal control over financial reporting.

Item 9B. OTHER INFORMATION

None

56

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

PART III

Information required by this item is incorporated by reference to our Proxy Statement for the 2018 Annual Meeting of Stockholders.

Item 11. EXECUTIVE COMPENSATION

Information  required  by  this  item  is  incorporated  herein  by  reference  to  our  Proxy  Statement  for  the  2018  Annual  Meeting  of

Stockholders.

Item 12.

SECURITY OWNERSHIP  OF  CERTAIN  BENEFICIAL  OWNERS  AND  MANAGEMENT  AND  RELATED
STOCKHOLDER MATTERS

Information required by this item is incorporated by reference to our Proxy Statement for the 2018 Annual Meeting of Stockholders.

Item 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

Information required by this item is incorporated by reference to our Proxy Statement for the 2018 Annual Meeting of Stockholders.

Item 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

Information required by this item is incorporated by reference to our Proxy Statement for the 2018 Annual Meeting of Stockholders.

57

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
PART IV

Item 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES

(a) List of Documents filed as part of this Report

(1) Consolidated Financial Statements

The financial statements and related notes, together with the report of EisnerAmper LLP appear at pages F-1 through F-19 following

the Exhibit List as required by Part II, Item 8 “Financial Statements and Supplementary Data” of this Form 10-K.

(2) Financial Statement Schedules.

Schedules are omitted because they are either not required, not applicable, or the information is otherwise included.

(3) Exhibits

The Company has filed with this report or incorporated by reference herein certain exhibits as specified below pursuant to Rule 12b-
32 under the Exchange Act. See Exhibit Index following the signature page to this report for a complete list of documents filed with this
report.

Exhibit No.

Description

3.1

  Amended  and  Restated  Certificate  of  Incorporation  of  the  Company  (incorporated  by  reference  to  Exhibit  3.1  of  the

Company’s Current Report on Form 8-K filed with the SEC on May 26, 2017).

3.2

  Amended and Restated Bylaws of the Company (incorporated by reference to Exhibit 3.2 of the Company’s Current Report

on Form 8-K filed with the SEC on May 26, 2017).

4.1

  Form of Merger Warrant (incorporated by reference to Exhibit 4.1 of the Company’s Registration Statement on Form S-1

filed with the SEC on September 3, 2014).

4.2

  Form of Replacement Warrant (incorporated by reference to Exhibit 4.2 of the Company’s Registration Statement on Form

S-1 filed with the SEC on September 3, 2014).

4.3

  Form of Investor Warrant (incorporated by reference to Exhibit 4.3 of the Company’s Registration Statement on Form S-1

filed with the SEC on September 3, 2014).

4.4

  Form  of  Additional  Replacement  Warrant  (incorporated  by  reference  to  Exhibit  4.4  of  the  Company’s  Registration

Statement on Form S-1 filed with the SEC on September 3, 2014).

4.5

  Form of Placement Agent Warrant (incorporated by reference to Exhibit 4.5 of the Company’s Registration Statement on

Form S-1 filed with the SEC on September 3, 2014).

4.6

  Registration Rights Agreement (incorporated by reference to Exhibit 4.6 of the Company’s Registration Statement on Form

S-1 filed with the SEC on September 3, 2014).

4.7

  Specimen Common Stock Certificate, $0.0001 par value (incorporated herein by reference to Exhibit 4.1 of the Company’s

Registration Statement on Form S-3 filed with the SEC on November 10, 2015).

4.8

  Warrant to Purchase Common Stock, dated as of January 26, 2018, issued to the Cystic Fibrosis Foundation*

10.1

  Placement Agency Agreement, dated March 27, 2014, between the Company and Aegis Capital Corporation (incorporated
by  reference  to  Exhibit  10.1  of  the  Company’s  Registration  Statement  on  Form  S-1  filed  with  the  SEC  on  September  3,
2014).

10.2

  Consulting Agreement,  dated  March  21,  2014,  between  the  Company  and  Orchestra  Medical  Ventures  (incorporated  by
reference to Exhibit 10.2 of the Company’s Registration Statement on Form S-1 filed with the SEC on September 3, 2014).

58

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit No.

Description

10.3

  Form of Subscription Agreement for the Company’s 2014 Private Placement (incorporated by reference to Exhibit 10.3 of

the Company’s Registration Statement on Form S-1 filed with the SEC on September 3, 2014).

10.4

  Form  of  Voting  Agreement,  dated  April  11,  2014,  by  and  among  the  Company  and  the  stockholders  named  therein
(incorporated  by  reference  to  Exhibit  10.4  of  the  Company’s  Registration  Statement  on  Form  S-1  filed  with  the  SEC  on
September 3, 2014).

10.5

  2014  Equity  Compensation  Plan  (incorporated  by  reference  to  Exhibit  10.5  of  the  Company’s  Registration  Statement  on

Form S-1 filed with the SEC on September 3, 2014). †

10.6

  Form  of  Incentive  Stock  Option  Agreement  (incorporated  by  reference  to  Exhibit  10.6  of  the  Company’s  Registration

Statement on Form S-1 filed with the SEC on September 3, 2014). †

10.7

  Form of Non-Qualified Stock Option Agreement (incorporated by reference to Exhibit 10.7 of the Company’s Registration

Statement on Form S-1 filed with the SEC on September 3, 2014). †

10.8

  Form of Restricted Stock Agreement (incorporated by reference to Exhibit 10.8 of the Company’s Registration Statement

on Form S-1 filed with the SEC on September 3, 2014). †

10.9

  Employment Agreement,  dated April  11,  2014,  between  the  Company  and  Yuval  Cohen  (incorporated  by  reference  to

Exhibit 10.9 of the Company’s Registration Statement on Form S-1 filed with the SEC on September 3, 2014). †

10.10

  Employment  Agreement,  dated  April  11,  2014,  between  the  Company  and  Mark  Tepper  (incorporated  by  reference  to

Exhibit 10.10 of the Company’s Registration Statement on Form S-1 filed with the SEC on September 3, 2014). †

10.11

10.12

10.13

10.14

  Amended and Restated Employment Agreement, dated June 19, 2014, between the Company and Sean Moran (incorporated
by reference to Exhibit 10.11 of the Company’s Registration Statement on Form S-1 filed with the SEC on September 3,
2014). †

  Agreement and Plan of Merger, dated March 27, 2014, by and among the Company, Corbus Pharmaceuticals Acquisition,
Inc.  and  JB  Therapeutics,  Inc.  (incorporated  by  reference  to  Exhibit  10.12  of  the  Company’s  Registration  Statement  on
Form S-1 filed with the SEC on September 3, 2014).

  Subscription Agreement,  dated April  2009,  between  Sumner  Burstein  and  JB  Therapeutics,  Inc.  (which  is  now  known  as
Corbus  Pharmaceuticals,  Inc.)  (incorporated  by  reference  to  Exhibit  10.13  of  the  Company’s  Registration  Statement  on
Form S-1 filed with the SEC on September 3, 2014).

  Letter Agreement, dated April 29, 2009, between JB Therapeutics, Inc. (which is now known as Corbus Pharmaceuticals,
Inc.) and Sumner Burstein (incorporated by reference to Exhibit 10.14 of the Company’s Registration Statement on Form S-
1 filed with the SEC on September 3, 2014).

10.15

  Form of Indemnification Agreement (incorporated by reference to Exhibit 10.15 of the Company’s Registration Statement

on Amendment No. 1 to Form S-1 filed with the SEC on September 30, 2014). †

10.16

10.17

10.18

10.19

10.20

  Letter Agreement, dated August 18, 2014, between the Company and Barbara White (incorporated herein by reference to
Exhibit 10.15 of the Company’s Post-Effective Amendment No. 1 to Form S-1 filed with the SEC on March 31, 2015). †

  Award  Agreement,  dated  April  9,  2015,  between  Cystic  Fibrosis  Foundation  Therapeutics,  Inc.  and  the  Company
(incorporated herein by reference to Exhibit 10.1 of the Company’s Quarterly Report on Form 10-Q filed with the SEC on
May 13, 2015).#

  Amendment No.1 to Employment Agreement, dated April 11, 2016, between the Company and Yuval Cohen (incorporated

by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed with the SEC on April 15, 2016). †

  Amendment No.1 to Employment Agreement, dated April 11, 2016, between the Company and Mark Tepper (incorporated

by reference to Exhibit 10.2 of the Company’s Current Report on Form 8-K filed with the SEC on April 15, 2016). †

  Amendment No.1 to Amended and Restated Employment Agreement, dated April 11, 2016, between the Company and Sean
Moran  (incorporated  by  reference  to  Exhibit  10.3  of  the  Company’s  Current  Report  on  Form  8-K  filed  with  the  SEC  on
April 15, 2016). †

59

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit No.

Description

10.21

10.22

10.23

10.24

10.25

10.26

10.27

10.28

10.29

10.30

10.31

10.32

10.33

  Employment Agreement,  dated April  11,  2016,  between  the  Company  and  Barbara  White  (incorporated  by  reference  to

Exhibit 10.4 of the Company’s Current Report on Form 8-K filed with the SEC on April 15, 2016). †

  Securities  Purchase Agreement,  dated  June  10,  2016,  between  Company  and  each  purchaser  identified  on  the  signature
pages thereto (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed with the SEC
on June 10, 2016).

  Consulting Agreement, dated September 20, 2016, between Company and Orchestra Medical Ventures, LLC (incorporated
by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed with the SEC on September 21, 2016).

  Lease, dated May 30, 2014, between Corbus Pharmaceuticals, Inc. and River Ridge Limited Partnership (incorporated by

reference to Exhibit 10.2 of the Company’s Current Report on Form 8-K filed with the SEC on November 10, 2016).

  First  Amendment  to  Lease,  dated  August  27,  2015,  between  Corbus  Pharmaceuticals,  Inc.  and  River  Ridge  Limited
Partnership (incorporated by reference to Exhibit 10.3 of the Company’s Current Report on Form 8-K filed with the SEC on
November 10, 2016).

  Second  Amendment  to  Lease,  dated  March  30,  2016,  between  Corbus  Pharmaceuticals,  Inc.  and  River  Ridge  Limited
Partnership (incorporated by reference to Exhibit 10.4 of the Company’s Current Report on Form 8-K filed with the SEC on
November 10, 2016).

  Third Amendment  to  Lease,  dated  September  13,  2016,  between  Corbus  Pharmaceuticals,  Inc.  and  River  Ridge  Limited
Partnership (incorporated by reference to Exhibit 10.5 of the Company’s Current Report on Form 8-K filed with the SEC on
November 10, 2016).

  Controlled  Equity  OfferingS M Sales  Agreement,  dated  November  23,  2016,  by  and  between  Corbus  Pharmaceuticals
Holdings, Inc. and Cantor Fitzgerald & Co. (incorporated by reference to Exhibit 1.1 of the Company’s Current Report on
Form 8-K filed with the SEC on November 23, 2016.)

  Securities Purchase Agreement, dated February 28, 2017, between Company and each purchaser identified on the signature
pages thereto (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed with the SEC
on February 28, 2017).

  Lease  Agreement,  dated  August  21,  2017,  by  and  between  Corbus  Pharmaceuticals,  Inc.  and  River  Ridge  Limited
Partnership (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed with the SEC on
August 22, 2017).

  Guarantee, dated August 21, 2017, by Corbus Pharmaceuticals Holdings, Inc. (incorporated by reference to Exhibit 10.2 of

the Company’s Current Report on Form 8-K filed with the SEC on August 22, 2017).

  Controlled Equity OfferingSM Sales Agreement, dated January 5, 2018, by and between Corbus Pharmaceuticals Holdings,
Inc.  and  Cantor  Fitzgerald  &  Co.  (incorporated  by  reference  to  Exhibit  1.2  of  the  Company’s  Registration  Statement  on
Form S-3 filed with the SEC on January 5, 2018).

  Cystic  Fibrosis  Program  Related  Investment  Agreement,  dated  January  26,  2018,  between  Cystic  Fibrosis  Foundation

Therapeutics, Inc. and the Company.#*

21.1

  List of Subsidiaries of the Company (incorporated by reference to Exhibit 21.1 of the Company’s Registration Statement on

Form S-1 filed with the SEC on September 3, 2014).

23.1

  Consent of EisnerAmper LLP.*

31.1

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

31.2

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

32.1

  Certification of Chief Executive Officer pursuant to Rule 13a-14(b) or Rule 15d-14(b).*

32.2

  Certification of Chief Financial Officer pursuant to Rule 13a-14(b) or Rule 15d-14(b).*

101.INS

  XBRL Instance Document.*

101.SCH   XBRL Taxonomy Extension Schema Document.*

101.CAL   XBRL Taxonomy Extension Calculation Linkbase Document.*

101.DEF   XBRL Taxonomy Extension Definition Linkbase Document.*

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
101.LAB   XBRL Taxonomy Extension Label Linkbase Document.*

101.PRE   XBRL Taxonomy Extension Presentation Linkbase Document.*

Filed herewith.

Confidential treatment  has  been  granted  with  respect  to  certain  portions  of  this  exhibit.  Omitted  portions  have  been  submitted
separately to the SEC.

Indicates a management contract or compensation plan, contract or arrangement.

*

#

†

Item 16. FORM 10-K SUMMARY

None.

60

 
 
 
 
 
 
 
 
 
 
 
 
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report

to be signed on its behalf by the undersigned, thereunto duly authorized.

SIGNATURES

Date: March 12, 2018

CORBUS PHARMACEUTICALS HOLDINGS, INC.

/s/ YUVAL COHEN

By:
Name: Yuval Cohen
Title: Chief Executive Officer

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

behalf of the registrant and in the capacities and on the dates indicated.

Signature

/s/ YUVAL COHEN
Yuval Cohen

/s/ SEAN MORAN
Sean Moran

/s/ ALAN HOLMER
Alan Holmer

/s/ DAVID HOCHMAN
David Hochman

/s/ RENU GUPTA
Renu Gupta

/s/ AVERY CATLIN
Avery Catlin

/s/ PARIS PANAYIOTOPOULOS
Paris Panayiotopoulos 

Title

  Chief Executive Officer and Director

(Principal Executive Officer)

  Chief Financial Officer (Principal Financial and

Accounting Officer)

  Director

  Director

  Director

  Director

  Director

61

Date

March 12, 2018

March 12, 2018

March 12, 2018

March 12, 2018

March 12, 2018

March 12, 2018

March 12, 2018

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
INDEX TO FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm
Corbus Pharmaceuticals Holdings, Inc. Financial Statements-December 31, 2017:
Consolidated Balance Sheets as of December 31, 2017 and December 31, 2016
Consolidated Statements of Operations for the Years Ended December 31, 2017, 2016 and 2015
Consolidated Statements of Stockholders’ Equity for the Years Ended December 31, 2017, 2016 and 2015
Consolidated Statements of Cash Flows for the Years Ended December 31, 2017, 2016 and 2015
Notes to Consolidated Financial Statements

 F-1

Page
Number

F-2

F-3
F-4
F-5
F-6
F-7

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors and Stockholders of
Corbus Pharmaceuticals Holdings, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Corbus Pharmaceuticals Holdings, Inc. and Subsidiary (the “Company”)
as of December 31, 2017 and 2016, and the related consolidated statements of operations, stockholders’ equity, and cash flows for each of
the years in the three-year period ended December 31, 2017, and the related notes (collectively referred to as the “financial statements”). In
our  opinion,  the  financial  statements  present  fairly,  in  all  material  respects,  the  consolidated  financial  position  of  the  Company  as  of
December 31, 2017 and 2016, and the consolidated results of their operations and their cash flows for each of the years in the three-year
period ended December 31, 2017, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

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

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

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

/s/ EisnerAmper LLP

We have served as the Company’s auditor since 2014.

EISNERAMPER LLP
Iselin, New Jersey
March 12, 2018

 F-2

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Corbus Pharmaceuticals Holdings, Inc.
Consolidated Balance Sheets

ASSETS
Current assets:

Cash and cash equivalents
Restricted cash
Grants receivable
Stock subscriptions receivable
Prepaid expenses and other current assets

Total current assets

Restricted cash
Property and equipment, net
Other assets

Total assets

LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Notes payable
Accounts payable
Accrued expenses
Deferred revenue, current
Deferred rent, current

Total current liabilities

Deferred rent, noncurrent
Other liabilities

Total liabilities

Commitments and Contingencies
Stockholders’ equity

December 31,

2017

2016

  $

  $

62,537,495    $
158,991   
—   
—   
2,808,244   
65,504,730   
—   
1,432,655   
40,776   
66,978,161    $

  $

332,861    $

3,130,295   
4,741,519   
—   
—   
8,204,675   
989,550   
375   
9,194,600   

14,992,257 
150,000 
1,000,000 
330,413 
930,261 
17,402,931 
50,000 
435,251 
— 
17,888,182 

271,757 
3,419,921 
3,256,455 
1,940,195 
10,263 
8,898,591 
65,724 
4,632 
8,968,947 

Preferred Stock $0.0001 par value:10,000,000 shares authorized, no shares issued and
outstanding at December 31, 2017 and 2016
Common stock, $0.0001 par value; 150,000,000 shares authorized at December 31, 2017 and
2016, 55,603,427 and 44,681,745 shares issued and outstanding at December 31, 2017 and
2016, respectively
Additional paid-in capital
Accumulated deficit

Total stockholders’ equity

Total liabilities and stockholders’ equity

—   

— 

5,560   
123,476,102   
(65,698,101)  
57,783,561   
66,978,161    $

4,468 
42,191,256 
(33,276,489)
8,919,235 
17,888,182 

  $

The accompanying notes are an integral part of these Consolidated Financial Statements.

 F-3

 
 
 
 
 
 
 
 
   
 
 
    
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Revenue from awards
Operating expenses:

Research and development
General and administrative
Total operating expenses

Operating loss
Other income (expense):
Interest income, net
Foreign currency exchange gain (loss)

Other income (expense), net

Corbus Pharmaceuticals Holdings, Inc.
Consolidated Statements of Operations

For the Years Ended
December 31,

2017
2,440,195    $

2016
1,911,424    $

2015

648,382 

  $

26,038,965   
8,964,046   
35,003,011   
(32,562,816)  

15,436,735   
6,459,747   
21,896,482   
(19,985,058)  

183,112   
(41,908)  
141,204   
(32,421,612)   $
(0.65)   $

50,176,953   

477   
(14,094)  
(13,617)  
(19,998,675)   $
(0.49)   $

41,137,518   

5,888,659 
3,613,416 
9,502,075 
(8,853,693)

977 
1,977 
2,954 
(8,850,739)
(0.28)
31,350,145 

Net loss
Net loss per share, basic and diluted
Weighted average number of common shares outstanding, basic and diluted  

  $
  $

The accompanying notes are an integral part of these Consolidated Financial Statements.

 F-4

 
 
 
 
 
 
   
 
 
 
   
   
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Corbus Pharmaceuticals Holdings, Inc.
Statements of Stockholders’ Equity

Common Stock

Shares

    Amount

Additional
Paid-in
    Capital

    Accumulated   
Deficit

  25,938,332    $

2,594    $ 10,287,214    $ (4,427,075)   $

Balance at December 31, 2014
Stock-based compensation expense
Issuance of common stock upon exercise of warrants, net
of issuance costs of $509,215
Issuance of common stock upon exercise of stock options
Net Loss

Balance at December 31, 2015
Stock-based compensation expense
Issuance of common stock, net of issuance costs of
$260,179

Issuance of common stock  upon exercise of warrants
Issuance of common stock upon exercise of stock options
Net Loss
Balance at December 31, 2016
Stock-based compensation expense
Issuance of common stock, net of issuance costs of
$2,969,837

Issuance of common stock upon exercise of stock options
Net Loss
Balance at December 31, 2017

1,153,302     

  11,615,674     
51,128     

1,162      10,812,963     
5,584     

5     

(8,850,739)    

  37,605,134    $

3,761    $ 22,259,063    $ (13,277,814)   $

3,163,534     

  6,148,695     

615      16,300,309     

601,030     
326,886     

60     
32     

1,190     
467,160     

  44,681,745    $

       (19,998,675)    
4,468    $ 42,191,256    $ (33,276,489)   $

5,694,489     

  10,648,948     

1,065      75,400,894     

272,734     

27     

189,463     

       (32,421,612)    

Total
Stockholders’ 
Equity
5,862,733 
1,153,302 

10,814,125 
5,589 
(8,850,739)

8,985,010 
3,163,534 

16,300,924 

1,250 
467,192 
(19,998,675)
8,919,235 
5,694,489 

75,401,959 

189,490 
(32,421,612)

  55,603,427    $

5,560    $123,476,102    $ (65,698,101)   $ 57,783,561 

The accompanying notes are an integral part of these Consolidated Financial Statements.

 F-5

 
 
 
 
 
   
 
 
   
   
 
 
 
 
      
      
      
 
      
 
 
      
 
 
      
      
      
 
 
 
      
      
      
      
  
 
 
 
      
      
      
 
      
 
 
 
      
      
      
      
  
 
 
      
 
 
      
 
 
      
      
 
 
 
      
      
      
 
      
 
 
 
      
      
      
      
  
 
 
      
 
 
      
      
 
 
 
 
 
Corbus Pharmaceuticals Holdings, Inc.
Consolidated Statements of Cash Flows

Cash flows from operating activities:

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

Year Ended December 31,
2016

2017

2015

  $

(32,421,612)  

(19,998,675)   $

(8,850,739)

Stock-based compensation expense
Depreciation and amortization
(Gain) loss on foreign exchange
Deferred rent

Changes in operating assets and liabilities:
Decrease (increase) in grants receivable
Increase in prepaid expenses and other current assets
Increase in other assets
(Decrease) increase in accounts payable
Increase in accrued expenses
(Decrease) increase in deferred revenue
Net cash used in operating activities

Cash flows from investing activities:

Purchases of property and equipment
Net cash used in investing activities

Cash flows from financing activities:

Proceeds from issuance of notes payable
Principal payments on notes payable
Proceeds from issuance of common stock
Issuance costs paid for common stock financings
Principal payments under capital lease obligations

Net cash provided by financing activities
Net increase in cash, cash equivalents, and restricted cash
Cash, cash equivalents, and restricted cash at beginning of the year
Cash, cash equivalents, and restricted cash at end of the year

  $

Supplemental disclosure of cash flow information and non cash transactions:  

Cash paid during the period for interest
Assets acquired under capital lease obligation
Purchases of property and equipment included in accounts payable or
accrued expenses
Unpaid stock issuance costs

  $
  $

  $

5,694,489   
255,652   
(8,490)  
913,563   

1,000,000   
(1,877,983)  
(40,776)  
(885,797)  
1,514,521   
(1,940,195)  
(27,796,628)  

3,163,534   
87,664   
14,094   
75,987   

(1,000,000)  
(553,745)  
—   
1,890,876   
2,660,461   
88,577   
(13,571,227)  

(707,429)  
(707,429)  

(353,032)  
(353,032)  

1,153,302 
43,943 
(1,977)
— 

— 
(105,959)
— 
972,194 
312,788 
1,851,618 
(4,624,830)

(114,037)
(114,037)

415,265   

348,750   

207,750 

(354,161)  
78,891,699   
(2,940,685)  
(3,832)  
76,008,286   
47,504,229   
15,192,257   
62,696,486   

12,377   
—   

579,734   
225,501   

(239,012)  
16,699,133   
(63,830)  
(3,175)  
16,741,866   
2,817,607   
12,374,650   
15,192,257    $

(190,120)
11,328,929 
(509,215)
— 
10,837,344 
6,098,477 
6,276,173 
12,374,650 

5,586    $
11,638    $

34,107    $
196,349    $

— 
— 

— 
— 

The accompanying notes are an integral part of these Consolidated Financial Statements.

 F-6

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
Corbus Pharmaceuticals Holdings, Inc.
Notes to Consolidated Financial Statements

1.

NATURE OF OPERATIONS

Business

Corbus  Pharmaceuticals  Holdings,  Inc.  (“CPHI”  or  “the  Company”)  is  a  clinical  stage  pharmaceutical  company,  focused  on  the
development and commercialization of novel therapeutics to treat rare, chronic, and serious inflammatory and fibrotic diseases. Since
its  inception,  the  Company  has  devoted  substantially  all  of  its  efforts  to  business  planning,  research  and  development,  recruiting
management and technical staff, acquiring operating assets and raising capital. . The Company’s business is subject to significant risks
and uncertainties and the Company will be dependent on raising substantial additional capital before it becomes profitable and it may
never achieve profitability.

2.

LIQUIDITY

The Company anticipates operating losses to continue for the foreseeable future due to, among other things, costs related to research
funding, development of its product candidates and its preclinical and clinical programs, strategic alliances and the development of its
administrative  organization.  The  Company  has  incurred  recurring  losses  since  inception  and  as  of  December  31,  2017,  had  an
accumulated deficit of $65,698,101.

On January 5, 2018, the Company entered into a Controlled Equity OfferingSM Sales Agreement (“January 2018 Sales Agreement”)
with Cantor Fitzgerald & Co. (“Cantor Fitzgerald”) pursuant to which Cantor Fitzgerald is serving as the Company’s sales agent to sell
up to $50 million of shares of the Company’s common stock through an “at the market offering,” of which 1,500,000 shares have been
sold for net proceeds of $11.3 million to date. (See Note 15).

On  January  26,  2018,  the  Company  entered  into  the  Cystic  Fibrosis  Program  Related  Investment  Agreement  (“Investment
Agreement”)  with  the  Cystic  Fibrosis  Foundation  (“CFF”),  a  non-profit  drug  discovery  and  development  corporation,  pursuant  to
which the Company received a development award for up to $25 million in funding (the “2018 CFF Award”) to support a Phase 2b
Clinical Trial (the “Phase 2b Clinical Trial”) of lenabasum in patients with cystic fibrosis, of which the Company has received $6.25
million  to  date.  The  Company  expects  the  remainder  of  the  2018  CFF Award  will  be  paid  to  the  Company  incrementally  upon  the
achievement  of  the  remaining  milestones  related  to  the  progress  of  the  Phase  2b  Clinical  Trial,  as  set  forth  in  the  Investment
Agreement. (See Note 15).

The Company expects the cash on hand of $62,537,495 at December 31, 2017 together with the $11.3 million of net proceeds received
from the January 2018 Sales Agreement and the $6.25 million that the Company has received to date under the 2018 CFF Award, to be
sufficient to meet its operating and capital requirements at least 12 months from the filing of this 10-K.

Should the Company be unable to raise sufficient additional capital, the Company may be required to undertake cost-cutting measures
including delaying or discontinuing certain clinical activities. The Company will need to raise significant additional capital to continue
to  fund  the  clinical  trials  for  lenabasum.  The  Company  may  seek  to  sell  common  or  preferred  equity  or  convertible  debt  securities,
enter into a credit facility or another form of third-party funding, or seek other debt financing. The sale of equity and convertible debt
securities may result in dilution to the Company’s stockholders and certain of those securities may have rights senior to those of the
Company’s common shares. If the Company raises additional funds through the issuance of preferred stock, convertible debt securities
or other debt financing, these securities or other debt could contain covenants that would restrict the Company’s operations. Any other
third-party funding arrangement could require the Company to relinquish valuable rights.

The source, timing and availability of any future financing will depend principally upon market conditions, and, more specifically, on
the  progress  of  the  Company’s  clinical  development  programs.  Funding  may  not  be  available  when  needed,  at  all,  or  on  terms
acceptable to the Company. Lack of necessary funds may require the Company, among other things, to delay, scale back or eliminate
some or all of the Company’s planned clinical trials.

 F-7

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3.

SIGNIFICANT ACCOUNTING POLICIES

A  summary  of  the  significant  accounting  policies  followed  by  the  Company  in  the  preparation  of  the  financial  statements  is  as
follows:

Use of Estimates

The  process  of  preparing  financial  statements  in  conformity  with  accounting  principles  generally  accepted  in  the  United  States  of
America  requires  management  to  make  estimates  and  assumptions  that  affect  the  reported  amounts  of  assets  and  liabilities  and
disclosure of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates and changes in estimates may occur. The most significant estimates
are  related  to  stock  based  compensation  expense,  the  accrual  of  research,  product  development  and  clinical  obligations,  and  the
expected performance period under the 2015 CFFT Award (See Note 8).

Prior to the registration of its common stock and the subsequent public listing of the common stock, the Company had granted stock
options  at  exercise  prices  not  less  than  the  fair  value  of  its  common  stock  as  determined  by  the  board  of  directors,  with  input  from
management.  The  Company’s  board  of  directors  determined  the  estimated  fair  value  of  the  common  stock  based  on  a  number  of
objective  and  subjective  factors,  including  external  market  conditions  affecting  the  biotechnology  industry  sector  and  the  historic
prices at which the Company sold shares of preferred stock.

Cash, Cash Equivalents, and Restricted Cash

The  Company  considers  only  those  investments  which  are  highly  liquid,  readily  convertible  to  cash,  and  that  mature  within  three
months  from  date  of  purchase  to  be  cash  equivalents.  Marketable  investments  are  those  with  original  maturities  in  excess  of  three
months. At December 31, 2017 and 2016, cash equivalents were comprised of money market funds. The Company had no marketable
investments at December 31, 2017 and 2016.

Restricted  cash  as  of  December  31,  2017  and  2016  included  a  collateral  account  for  the  Company’s  corporate  credit  cards  and  is
classified in current assets in the amount of $108,991 and $150,000, respectively. Additionally, as of December 31, 2017 and 2016
restricted cash included a stand-by letter of credit issued in favor of a landlord for $50,000 which was classified in current assets as of
December 31, 2017 and in noncurrent assets as of December 31, 2016 (See Note 5).

Cash, cash equivalents, and restricted cash consists of the following:

Cash
Money market fund

Cash and cash equivalents

Restricted cash, current
Restricted cash, noncurrent

Restricted cash

December 31,

2017

  $

206,510    $

62,330,985   
62,537,495   

2016
1,127,530 
13,864,727 
14,992,257 

158,991   
—   
158,991   

150,000 
50,000 
200,000 

Total cash, cash equivalents, and restricted cash shown in the statement of
cash flows

  $ 62,696,486    $ 15,192,257 

Financial Instruments

The  carrying  amounts  reported  in  the  consolidated  balance  sheet  for  cash  and  cash  equivalents,  receivables,  accounts  payable  and
accrued expenses approximate their fair value based on the short-term nature of these instruments. The carrying values of the notes
payable approximate their fair value due to the fact that they are at market terms.

Property and Equipment

The estimated life for the Company’s property and equipment is as follows: three years for computer hardware and software and three
to five years for office furniture and equipment. The Company’s leasehold improvements and assets under capital lease are amortized
over the shorter of their useful lives or the respective leases. See Note 4 for details of property and equipment and Note 5 for operating
and capital lease commitments.

 F-8

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Research and Development Expenses and Development Award Agreements

Costs incurred for research and development are expensed as incurred.

Nonrefundable advance payments for goods or services that have the characteristics that will be used or rendered for future research
and  development  activities  pursuant  to  executory  contractual  arrangements  with  third  party  research  organizations  are  deferred  and
recognized as an expense as the related goods are delivered or the related services are performed.

For amounts received under the development award received from the CFFT (See Note 8), the Company recognized those amounts
when the triggering event to receive those payments occurred, with those amounts being amortized on a straight-line basis over the
expected  duration  of  the  remaining  performance  period  of  the  development  program  under  the  award,  which  concluded  in  the  third
quarter of 2017.

Accruals for Research and Development Expenses and Clinical Trials

As  part  of  the  process  of  preparing  its  financial  statements,  the  Company  is  required  to  estimate  its  expenses  resulting  from  its
obligations  under  contracts  with  vendors,  clinical  research  organizations  and  consultants  and  under  clinical  site  agreements  in
connection with conducting clinical trials. The financial terms of these contracts are subject to negotiations, which vary from contract
to contract and may result in payment terms that do not match the periods over which materials or services are provided under such
contracts. The Company’s objective is to reflect the appropriate expenses in its financial statements by matching those expenses with
the  period  in  which  services  are  performed  and  efforts  are  expended.  The  Company  determines  accrual  estimates  by  taking  into
account  discussion  with  applicable  personnel  and  outside  service  providers  as  to  the  progress  of  clinical  trials,  or  the  services
completed. During the course of a clinical trial, the Company adjusts its clinical expense recognition if actual results differ from its
estimates. The Company makes estimates of its accrued expenses as of each balance sheet date based on the facts and circumstances
known  to  it  at  that  time.  The  Company’s  clinical  trial  accruals  are  dependent  upon  the  timely  and  accurate  reporting  of  contract
research organizations and other third-party vendors. Although the Company does not expect its estimates to be materially different
from amounts actually incurred, its understanding of the status and timing of services performed relative to the actual status and timing
of services performed may vary and may result in it reporting amounts that are too high or too low for any particular period. For the
years  ended  December  31,  2017,  2016  and  2015,  there  were  no  material  adjustments  to  the  Company’s  prior  period  estimates  of
accrued expenses for clinical trials.

Leases and Deferred Rent

The Company leases its office space. Leases are evaluated and classified as operating or capital leases for financial reporting purposes.
The Company’s office space leases qualify as operating leases. For operating leases that contain rent escalations and rent holidays, the
Company  records  the  total  rent  payable  during  the  lease  term  on  a  straight-line  basis  over  the  term  of  the  lease  and  records  the
difference between the rents paid and the straight-line rent as deferred rent. Additionally, any tenant improvement allowances received
from the lessor are recorded as a reduction to rent expense over the term of the lease.

Concentrations of Credit Risk

The Company has no significant off-balance-sheet concentration of credit risk such as foreign exchange contracts, option contracts or
other  hedging  arrangements.  The  Company  may  from  time  to  time  have  cash  in  banks  in  excess  of  Federal  Deposit  Insurance
Corporation insurance limits. However, the Company believes the risk of loss is minimal as these banks are large financial institutions.

Segment Information

Operating segments are identified as components of an enterprise about which separate discrete financial information is available for
evaluation  by  the  chief  operating  decision  maker,  or  decision  making  group,  in  making  decisions  regarding  resource  allocation  and
assessing  performance.  To  date,  the  Company  has  viewed  its  operations  and  manages  its  business  as  principally  one  operating
segment, which is developing and commercializing therapeutics to treat rare life-threatening inflammatory and fibrotic diseases. As of
December 31, 2017 and 2016, all of the Company’s assets were located in the United States.

Income Taxes

For  federal  and  state  income  taxes,  deferred  tax  assets  and  liabilities  are  recognized  based  upon  temporary  differences  between  the
financial statement and the tax basis of assets and liabilities. Deferred income taxes are based upon prescribed rates and enacted laws
applicable to periods in which differences are expected to reverse. A valuation allowance is recorded to reduce a net deferred tax asset
when it is not more likely than not that the tax benefit from the deferred tax assets will be realized. Accordingly, given the cumulative
losses since inception, the Company has provided a valuation allowance equal to 100% of the deferred tax assets in order to eliminate
the deferred tax assets amounts.

 F-9

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Tax  positions  taken  or  expected  to  be  taken  in  the  course  of  preparing  the  Company’s  tax  returns  are  required  to  be  evaluated  to
determine whether the tax positions are “more-likely-than-not” of being sustained by the applicable  tax  authority.  Tax  positions  not
deemed to meet a more-likely-than-not threshold, as well as accrued interest and penalties, if any, would be recorded as a tax expense
in the current year. There were no uncertain tax positions that require accrual or disclosure to the financial statements as of December
31, 2017 or 2016.

Impairment of Long-lived Assets

The Company continually monitors events and changes in circumstances that could indicate that carrying amounts of long-lived assets
may not be recoverable. An impairment loss is recognized when expected undiscounted cash flows of an asset are less than an asset’s
carrying value. Accordingly, when indicators of impairment are present, the Company evaluates the carrying value of such assets in
relation  to  the  operating  performance  and  future  undiscounted  cash  flows  of  the  underlying  assets. An  impairment  loss  equal  to  the
excess of the fair value of the asset over its carrying amount, is recorded when it is determined that the carrying value of the asset may
not be recoverable. No impairment charges were recorded for the years ended December 31, 2017, 2016 and 2015.

Share-based Payments

The  Company  recognizes  compensation  costs  resulting  from  the  issuance  of  stock-based  awards  to  employees,  non-employees  and
directors as an expense in the statement of operations  over  the  service  period  based  on  a  measurement  of  fair  value  for  each  stock-
based  award.  The  fair  value  of  each  option  grant  to  employees  is  estimated  as  of  the  date  of  grant  using  the  Black-Scholes  option-
pricing model. The fair value is amortized as compensation cost on a straight-line basis over the requisite service period of the awards,
which  is  generally  the  vesting  period.  Stock  options  granted  to  non-employee  consultants  are  revalued  at  the  end  of  each  reporting
period  until  vested  using  the  Black-Scholes  option-pricing  model  and  the  changes  in  their  fair  value  are  recorded  as  adjustments  to
expense over the related vesting period.

On  March  30,  2016,  the  FASB  issued  ASU  No.  2016-09,  Compensation—Stock  Compensation  (Topic  718):  Improvements  to
Employee  Share-Based  Payment  Accounting (“ASU  2016-09”).  ASU  2016-09  simplifies  several  aspects  of  the  accounting  for
employee  share-based  payment  transactions  including  the  accounting  for  income  taxes,  forfeitures,  and  statutory  tax  withholding
requirements, as well as classification in the statement of cash flows. ASU 2016-09 took effect for fiscal years, and interim periods
within those fiscal years, beginning after December 15, 2016. In the first quarter of 2017, when the Company adopted ASU 2016-09 it
did not elect to account for forfeitures as they occur but rather to continue to estimate forfeitures at grant date. As a result, the adoption
of  ASU  2016-09  did  not  have  an  impact  on  the  Company’s  consolidated  financial  statements.  ASU  2016-09  also  removed  the
requirement to recognize the excess tax benefits in respect of share based payments only when realized (See Note 9).

Net Loss Per Common Share

Basic and diluted net loss per share of the Company’s common stock has been computed by dividing net loss by the weighted average
number  of  shares  outstanding  during  the  period.  For  years  in  which  there  is  a  net  loss,  options  and  warrants  are  anti-dilutive  and
therefore excluded from diluted loss per share calculations. The following table sets forth the computation of basic and diluted earnings
per share for the years ended December 31, 2017, 2016 and 2015:

    Years Ended December 31,

2017

2016

2015

Basic and diluted net loss per share of common stock:
Net loss
Weighted average shares of common stock outstanding
Net loss per share of common stock-basic and diluted

 F-10

  (32,421,612)  
  50,176,953   

  $

(0.65)   $

  (19,998,675)  $ (8,850,739)
  31,350,145 
  41,137,518   
(0.28)

(0.49)  $

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
    
 
    
 
  
 
 
 
 
 
The impact of the following potentially dilutive securities for the years ended December 31, 2017, 2016 and 2015 have been excluded
from the computation of dilutive weighted average shares outstanding as the inclusion would be antidilutive.

Warrants
Stock options

Recent Accounting Pronouncements

Revenue Recognition

2017
1,288,500   
7,844,966   
9,133,466   

December 31,
2016
1,288,500   
6,610,179   
7,898,679   

2015
1,969,250 
3,982,065 
5,951,315 

In May 2014, the FASB issued guidance codified in Accounting Standards Codification (ASC) 606, Revenue Recognition — Revenue
from Contracts with Customers (“ASC 606”) which amends the guidance in former ASC 605, Revenue Recognition, and is effective for
public companies for annual and interim periods beginning after December 15, 2017. Specifically, the new standard differs from the
current  accounting  standard  in  many  respects,  such  as  in  the  accounting  for  variable  consideration  received,  including  milestone
payments  or  contingent  payments.  Under  the  Company’s  accounting  policy  prior  to  the  adoption  of ASC  606  in  the  first  quarter  of
2018, milestone payments were initially recognized only in the period that the payment-triggering event occurred or was achieved (See
Note 8). ASC 606, however, may require a company to recognize such payments before the payment-triggering event is completely
achieved based on the Company’s estimate of the amount of consideration to which it will be entitled in exchange for transferring the
services, subject to management’s assessment of whether it is probable that a significant reversal in the amount of cumulative revenue
recognized  will  not  occur  when  the  uncertainty  associated  with  the  variable  consideration  is  subsequently  resolved.  The  Company
adopted ASC  606  in  the  first  quarter  of  2018  using  the  modified  retrospective  method  according  to  which  the  cumulative  effect  of
initially  applying  ASC  606  is  recognized  at  the  date  of  initial  application.  Since  the  Company  has  concluded  its  performance
obligations and has completed recognizing revenue under the agreement with CFFT in the third quarter of 2017 (See Note 8), there
was no cumulative effect to record at the date of the Company’s adoption of ASC 606. The Company will assess any new agreements
it enters into, including the 2018 CFF Award, (See Note 15) under ASC 606, including if such agreements fall under the scope of such
standard.

Accounting for Leases

In February 2016, the FASB issued ASU No . 2016-02, Leases  (Topic  842) (“ASU 2016-02”). Under ASU 2016-02, a lessee will be
required to recognize assets and liabilities for all leases with lease terms of more than 12 months. Consistent with current GAAP, the
recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee primarily will depend on its
classification as a finance or operating lease. However, unlike current GAAP, which requires only capital leases to be recognized on
the balance sheet, ASU 2016-02 will require both types of leases to be recognized on the balance sheet. ASU 2016-02 will take effect
for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, with early application permitted. The
adoption of ASU 2016-02 will have an impact on the Company’s financial position as the Company has operating lease commitments
for office space as of December 31, 2017 with future non-cancelable lease payments amounting to $5,474,623 (see Note 5) for which
ASU 2016-02 would apply.

4.

PROPERTY AND EQUIPMENT

Property and Equipment consisted of the following:

Computer hardware and software
Office furniture and equipment
Leasehold improvements
Construction in progress
Property and equipment, gross
Less: accumulated depreciation
Property and equipment, net

December 31,

2017

2016

  $

  $

136,522    $
287,048   
191,244   
1,181,730   
1,796,544   
(363,889) 
1,432,655    $

96,131 
259,138 
188,219 
— 
543,488 
(108,237)
435,251 

Depreciation  expense  was  approximately  $256,000,  $88,000  and  $44,000  for  the  years  ended  December  31,  2017,  2016  and  2015,
respectively. At  December  31,  2017,  construction  in  progress  consisted  of  purchased  property  and  equipment  not  placed  in  service
until the Company’s relocation into 32,733 square feet of office space in February 2018 (See Note 5).

 F-11

 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
On December 30, 2015, the Company entered into a lease agreement for a copier machine. The cost of the machine was approximately
$12,000  and  is  included  in  office  furniture  and  equipment  category  in  the  table  above.  The  lease  payments  commenced  when  the
machine was placed in service in January 2016. The machine is being amortized over the life of the lease, which is for a three-year
term and includes a bargain purchase option at the end of the term. See Note 5 for details of this capital lease commitment.

5. COMMITMENTS AND CONTINGENCIES

Operating Lease Commitment

In  September  2016,  the  Company  amended  its  commercial  lease  for  office  space  to  expand  into  an  additional  4,088  square  feet  of
office  space  within  the  same  building  for  an  aggregate  total  of  10,414  square  feet  of  leased  office  space  (“September  2016
Amendment”).  The  Company  began  occupying  this  space  in  early  November  2016  and  the  final  lease  payment  was  to  be  due  in
January  2021.  The  September  2016 Amendment  required  an  increase  in  the  standby  letter  of  credit  to  $50,000  (See  Note  3).  The
September 2016 Amendment was terminated upon the commencement date of the August 2017 Lease Agreement discussed below.

On August 21, 2017, the Company entered into a lease agreement (“August 2017 Lease Agreement”) with the same landlord, pursuant
to  which  the  Company  agreed  to  lease  32,733  square  feet  of  office  space  (“Leased  Premises”).  The  initial  term  of  the August  2017
Lease Agreement is for a period of seven years which began with the Company’s occupancy of the Leased Premises in February 2018.
The  base  rent  for  the  Leased  Premises  ranges  from  approximately  $470,000  for  the  first  year  to  approximately  $908,000  for  the
seventh year. Per the terms of the August 2017 Lease Agreement, the landlord agreed to reimburse the Company for $1,080,189 of
leasehold improvements. The reimbursements have been deferred and will be recognized as a reduction of rent expense over the term
of the lease. Additionally, the August 2017 Lease Agreement required a standby irrevocable letter of credit of $400,000, which may be
reduced, if the Company is not in default under the August 2017 Lease Agreement, to $300,000 and $200,000 on the third and fourth
anniversary  of  the  commencement  date,  respectively,  The  Company  entered  into  an  unsecured  letter  of  credit  for  $400,000  in
connection with the August 2017 Lease Agreement for which it incurred interest expense of $9,743 in year ended December 31, 2017.

The Company records the total rent payable during the lease term on a straight-line basis over the term of the lease and records the
difference between the rents paid and the straight-line rent as deferred rent, which is classified in deferred rent, current and deferred
rent, noncurrent in the Company’s balance sheet as of December 31, 2017 and 2016.

Pursuant  to  the  terms  of  the  Company’s  non-cancelable  lease  agreements  in  effect  at  December  31,  2017,  the  future  minimum  rent
commitments are as follows:

2018
2019
2020
2021
2022
Thereafter
Total

  $

  $

445,333 
623,958 
784,243 
830,600 
855,150 
1,935,339 
5,474,623 

Total rent expense for the years ended December 31, 2017, 2016 and 2015 was $356,547, $229,705 and $55,496, respectively.

Capital Lease Commitment

The  lease  payments  commenced  when  the  machine  was  placed  in  service  in  January  2016.  The  lease  is  for  a  three-year  term  and
includes a bargain purchase option at the end of the term. In the accompanying balance sheet as of December 31, 2017 and 2016, the
current portion of this capital lease obligation is classified in accrued expenses and the long-term portion of the capital lease obligation is
classified  in  other  long-term  liabilities.  Pursuant  to  the  terms  of  this  capital  lease  agreement,  the  future  minimum  capital  lease
commitments are as follows as of December 31, 2017:

2018
2019
Total future minimum lease payments
Less: interest
Future capital lease obligations
Less: current portion
Long-term portion

 F-12

  $

  $

4,543 
379 
4,922 
(291)
4,631 
(4,256)
375 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Interest  expense  for  this  capital  lease  obligation  for  the  years  ended  December  31,  2017,  2016  and  2015  was  $712,  $1,286  and  $0,
respectively.

For commitments under the Company’s development award agreements- see Note 8.

6. NOTES PAYABLE

In  November  2015,  the  Company  entered  into  a  loan  agreement  with  a  financing  company  for  $207,750  to  finance  one  of  the
Company’s insurance policies. The terms of the loan stipulated equal monthly payments of principal and interest payments of $23,397
over a nine month period. Interest on this loan was accrued at an annual rate of 3.25%. This loan was fully repaid in July 2016.

In October 2016, the Company entered into a loan agreement with a financing company for $348,750 to finance one of the Company’s
insurance policies. The terms of the loan stipulate equal monthly payments of principal and interest payments of $39,114 over a nine-
month period. Interest on this loan was accrued at an annual rate of 2.25%. This loan was fully repaid in July 2017.

In  November  2017,  the  Company  entered  into  a  loan  agreement  with  a  financing  company  for  $415,265  to  finance  one  of  the
Company’s insurance policies. The terms of the loan stipulate equal monthly payments of principal and interest payments of $41,975
over a ten-month period. Interest accrues on this loan at an annual rate of 2.35%.

Prepaid expenses and other current assets as of December 31, 2017 and 2016 included $368,976 and $378,750, respectively, related to
these insurance policies.

Interest  expense  for  notes  payable  for  the  years  ended  December  31,  2017,  2016  and  2015  totaled  $3,632,  $3,115  and  $2,440,
respectively.

7. ACCRUED EXPENSES

Accrued expenses consisted of the following:

Accrued clinical operations and trials costs
Accrued product development costs
Accrued compensation
Accrued other
Total

8. DEVELOPMENT AWARD AND DEFERRED REVENUE

December 31,

2017
2,003,799    $
1,255,439   
1,335,672   
146,609   
4,741,519    $

2016
1,647,490 
713,426 
778,250 
117,289 
3,256,455 

  $

  $

On April 20, 2015, the Company entered into an award agreement (the “2015 CFFT Award Agreement “) with the CFFT pursuant to
which it received a development award (the “2015 CFFT Award”) for up to $5 million in funding. The funding from the 2015 CFFT
Award supported a first-in-patient Phase 2 clinical trial of the Company’s oral anti-inflammatory drug lenabasum in adults with cystic
fibrosis (“CF”). The Company has received $5.0 million in payments since the inception of the 2015 CFFT Award as outlined below.
The  payments  received  under  the  2015  CFFT Award  were  recorded  as  deferred  revenue  when  the  triggering  event  to  receive  those
amounts  had  occurred  and  were  amortized  on  a  straight-line  basis  over  the  expected  duration  of  the  remaining  performance  period
under the 2015 CFFT Award which concluded in the third quarter of 2017.

Upon the execution of the 2015 CFFT Award Agreement, the Company received a payment of $1,250,000 in May 2015. In November
2015,  the  Company  received  a  second  payment  of  $1,250,000  upon  the  achievement  of  a  milestone  for  dosing  the  first  patient.  In
August 2016, the Company received a third payment from the CFFT in the amount of $1,000,000 for achieving a milestone in July
2016 related to dosing the median clinical trial patient. In January 2017, the Company received a fourth payment from the CFFT in the
amount of $1,000,000 for achieving a milestone in December 2016 related to completing the final visit for the final patient, which was
billed by the Company to CFFT in December 2016 and was classified in grants receivable as of December 31, 2016. The Company
received the final payment from CFFT in the amount of $500,000 in November 2017 for achieving the final milestone in September
2017  related  to  the  issuance  to  CFFT  of  the  final  integrated  statistical  report  for  to  the  Phase  2  CF  clinical  trial. At  that  time  the
Company had completed all its performance obligations under the contract and therefore the performance period had concluded.

 F-13

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pursuant to the terms of the 2015 CFFT Award Agreement, the Company is obligated to make royalty payments to CFFT contingent
upon commercialization of lenabasum in the Field of Use (as defined in the 2015 CFFT Award Agreement) as follows: (i) a royalty
payment equal to five times the amount the Company receives under the 2015 CFFT Award Agreement, up to $25 million, payable in
three equal annual installments following the first commercial sale of lenabasum, the first of which is due within 90 days following the
first commercial sale of lenabasum, (ii) a royalty payment to CFFT equal to the amount the Company receives under the 2015 CFFT
Award Agreement, up to $5 million, due in the  first  calendar  year  in  which  the  aggregate  cumulative  net  sales  of  lenabasum  in  the
Field of Use exceed $500 million, and (iii) royalty payment(s) to CFFT of up to approximately $15 million if the Company transfers,
sells or licenses lenabasum in the Field of Use other than for certain clinical or development purposes, or if the Company enters into a
change of control transaction, with such payment(s) to be credited against the royalty payments due upon commercialization. The Field
of  Use  is  defined  in  the  2015  CFFT  Award  as  the  treatment  in  humans  of  CF,  asbestosis,  bronchiectasis,  byssinosis,  chronic
bronchitis/COPD hypersensitivity pneumonitis, pneumoconiosis, primary ciliary dyskinesis, sarcoidosis and silicosis. Either CFFT or
the  Company  may  terminate  the  agreement  for  cause,  which  includes  the  Company’s  material  failure  to  achieve  certain
commercialization  and  development  milestones.  The  Company’s  payment  obligations,  if  any,  would  survive  the  termination  of  the
2015  CFFT  Award  Agreement.  For  the  years  ended  December  31,  2017,  2016  and  2015,  in  respect  of  the  2015  CFFT  Award
Agreement,  the  Company  recognized  revenue  of  $2,440,195,  $1,911,424  and  $648,382,  respectively.  Deferred  revenue  consisted  of
the following:

Deferred revenue
Less: current portion
Long term portion

December 31,

2017

2016
1,940,195 
(1,940,195)
— 

—    $
—   
—    $

  $

  $

See Note 15 for the Investment Agreement entered into by the Company after the balance sheet date.

9.

INCOME TAXES

No  provision  or  benefit  for  federal  or  state  income  taxes  has  been  recorded,  as  the  Company  has  incurred  a  net  loss  for  all  of  the
periods presented, and the Company has provided a full valuation allowance against its deferred tax assets.

At  December  31,  2017  and  2016,  the  Company  had  federal  net  operating  loss  carryforwards  of  approximately  $56,536,000  and
$28,644,000, respectively, of which federal carryforwards will expire in varying amounts beginning in 2029. At December 31, 2017
and  2016,  the  Company  had  Massachusetts  net  operating  loss  carryforwards  of  approximately  $53,110,000  and  $26,573,000,
respectively.  In  the  first  quarter  of  2017,  the  Company  adopted  ASU  2016-09,  which  removed  the  requirement  to  recognize  the
deferred  tax  assets  on  excess  tax  benefits  in  respect  of  share  based  payments  only  when  realized. As  such,  during  the  year  ended
December 31, 2017, the Company’s gross deferred tax assets and corresponding valuation allowance each included a one-time increase
in respect of an additional federal and state net operating losses of $1,432,000. The adoption of ASU 2016-09 did not have an impact
on the Company’s balance sheet, results of operations, cash flows or statement of stockholders’ equity because the Company has a full
valuation allowance on its deferred tax assets. Utilization of net operating losses may be subject to substantial annual limitations due to
the “change in ownership” provisions of the Internal Revenue Code, and similar state provisions. The annual limitations may result in
the expiration of net operating losses before utilization. The Company has not yet conducted a study to determine if any such changes
have occurred that could limit the Company’s ability to use the net operating losses and tax credit carryforwards. The Company also
had research and development tax credit carryforwards at December 31, 2017 and 2016 of approximately $1,283,000 and $736,000,
respectively.

Significant components of the Company’s net deferred tax asset are as follows:

December 31,

2017

2016

NOL carryforward
Tax credits
Stock based compensation
Accrued expenses
Other temporary differences
Subtotal
Valuation allowance
Net deferred tax asset

 F-14

  $ 15,229,127    $ 10,860,828 
673,690 
1,177,650 
302,943 
225,214 
  13,240,325 
  (13,240,325)
— 

1,213,347   
1,724,248   
45,654   
116,292   
  18,328,668   
  (18,328,668) 

—    $

  $

 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The Company has maintained a full valuation allowance against its deferred tax assets in all periods presented. A valuation allowance
is required to be recorded when it is not more likely than not that some portion or all of the net deferred tax assets will be realized.
Since the Company cannot determine that it is more likely than not that it will generate taxable income, and thereby realize the net
deferred tax assets, a full valuation allowance has been provided. The valuation allowance increased by $5,088,343 and $7,860,985 in
2017 and 2016, respectively, due to the increase in deferred tax assets, primarily due to net operating loss carryforwards. The Company
has no uncertain tax positions at December 31, 2017 and 2016 that would affect its effective tax rate. Since the Company is in a loss
carryforward position, the Company is generally subject to U.S. federal and state income tax examinations by tax authorities for all
years for which a loss carryforward is available.

Income tax benefits computed using the federal statutory income tax rate differs from the Company’s effective tax rate primarily due to
the following:

Tax provision at statutory rate
State taxes, net of federal benefit
Permanent differences
Tax credits
Income tax rate change
Other
Increase in valuation reserve
Total

The Tax Cut and Jobs Act of 2017

2017

2016

2015

December 31,

34.00% 
5.66% 
-2.05% 
1.59% 
-24.11% 
0.60% 
-15.69% 
0.00% 

34.00% 
4.76% 
-0.65% 
1.33% 
—% 
-0.13% 
-39.31% 
0.00% 

34.00%
4.76%
-0.62%
2.67%
— 
0.04%
-40.85%
0.00%

On December 22, 2017, the Tax Cut and Jobs Act (the “Tax Act”) was enacted into law. The Tax Act, among other things, contains
significant changes to corporate taxation, including reduction of the corporate tax rate from a top marginal rate of 35% to a flat rate of
21%; limitation of the tax deduction for interest expense to 30% of adjusted earnings (except for certain small businesses); limitation
of the deduction of net operating losses generated in tax years beginning after December 31, 2017 to 80% of taxable income, indefinite
carryforward of net operating losses generated in tax years after 2018 and elimination of net operating loss carrybacks; changes in the
treatment of offshore earnings regardless of whether they are repatriated; current inclusion in U.S. federal taxable income of certain
earnings  of  controlled  foreign  corporations,  mandatory  capitalization  of  research  and  development  expenses  beginning  in  2022;
immediate deductions for certain new investments instead of deductions for depreciation expense over time; further deduction limits
on executive compensation; and modifying, repealing and creating many other business deductions and credits, including the reduction
in the orphan drug credit from 50% to 25% of qualifying expenditures. As of December 31, 2017, we have made a reasonable estimate
of the effects of the Tax Act on our existing deferred taxes and related disclosures by reducing our net federal and state deferred tax
assets by $7,815,832 for the reduction in corporate tax rate. This adjustment to our deferred tax assets is offset against the valuation
allowance.

Additionally,  the  SEC  staff  has  issued  SAB  118,  which  allows  to  record  provisional  amounts  during  a  measurement  period  not  to
extend beyond one year of the enactment date. On December 22, 2017, Staff Accounting Bulletin No. 118 (“SAB 118”) was issued to
address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or
analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the Act. Because
the Company is still in the process of analyzing certain provisions of the Tax Act, the Company has determined that the adjustment to
its deferred taxes was a provisional amount as permitted under SAB 118.

10. COMMON STOCK

The  Company  has  authorized  150,000,000  shares  of  common  stock,  $0.0001  par  value  per  share,  of  which  55,603,427  shares,
44,681,745 shares, and 37,605,134 shares were issued and outstanding as of December 31, 2017, 2016, and 2015, respectively.

During the year ended December 31, 2015, the Company issued 11,666,802 shares of common stock upon the exercise of warrants and
stock options to purchase common stock and the Company received net proceeds of $10,819,714 from these exercises.

In June 2016, the Company completed a sale of shares of its common stock pursuant to the terms of a securities purchase agreement
under which the Company sold an aggregate of 5,960,000 shares of its common stock in a registered direct offering to investors at a
purchase  price  of  $2.50  per  share  with  gross  proceeds  to  the  Company  totaling  approximately  $14,900,000  less  issuance  costs  of
$25,222. On February 28, 2017, the Company entered in a securities purchase agreement providing for the issuance and sale by the
Company of 3,887,815 shares of its common stock in a registered direct offering to institutional and accredited investors at a purchase
price of $7.00 per share with gross proceeds to the Company totaling $27,214,705 less issuance costs of $36,291.

 F-15

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
In November 2016, the Company entered into a sales agreement with Cantor Fitzgerald under which the Company could direct Cantor
Fitzgerald as its sales agent to sell common stock under an “At the Market Offering” (“Sales Agreement”). Sales of common stock
under the Sales Agreement were made pursuant to an effective registration statement for an aggregate offering of up to $35 million.
Under the Sales Agreement, the Company was obligated to pay Cantor a 3% commission on gross proceeds. In 2016, the Company
sold 188,695 shares of our common stock under the Sales Agreement at an average selling price of approximately $8.54 per share (net
of  3%  commission  paid  to  Cantor  Fitzgerald)  which  resulted  in  proceeds  of  approximately  $1,621,182  and  net  proceeds  of
approximately  $1,426,145  net  of  incurred  issuance  costs.  Approximately  $330,413  of  these  proceeds  were  classified  in  stock
subscriptions receivable as of December 31, 2016 because the Company did not receive these proceeds until January 2017. During the
year  ended  December  31,  2017,  in  the  first  quarter,  the  Company  sold  1,413,633  shares  of  its  common  stock  under  the  Sales
Agreement  at  an  average  selling  price  of  approximately  $9.71  per  share  for  gross  proceeds  of  $13,724,591  and  net  proceeds  of
$13,268,208. The Company did not sell any shares of its common stock under the Sales Agreement in the second or third quarter of
2017 and terminated the Sales Agreement in connection with the October 2017 Offering discussed below. The aggregate amount sold
under the Sales Agreement as described above was approximately $15.4 million.

See Note 15 for the January 2018 Sales Agreement entered into by the Company and Cantor Fitzgerald after the balance sheet date.

On October 26, 2017, the Company consummated an underwritten public offering of shares of its common stock pursuant to which the
Company sold an aggregate of 4,650,000 shares of its common stock to institutional investors at a purchase price of $7.00 per share
with  gross  proceeds  to  the  Company  totaling  $32,550,000,  less  estimated  issuance  costs  incurred  of  approximately  $2,184,000.  The
Company also granted the underwriters a 30-day option to purchase up to an additional 697,500 shares of common stock on the same
terms as the underwriters were purchasing the base number of shares, which they exercised in November 2017 with net proceeds to us
totaling $4,589,550.

During the year ended December 31, 2017, the Company issued 272,734 shares of common stock upon the exercise of stock options
and warrants to purchase common stock and the Company received net proceeds of $189,490 from these exercises. During the year
ended December 31, 2016, the Company issued 927,916 shares of common stock upon the exercise of stock options and warrants to
purchase common stock and the Company received net proceeds of $468,442 from these exercises.

11. STOCK OPTIONS

In  April  2014,  the  Company  adopted  the  Corbus  Pharmaceuticals  Holdings,  Inc.  2014  Equity  Incentive  Plan  (the  “2014  Plan”).
Pursuant to the 2014 Plan, the Company’s Board of Directors may grant incentive and nonqualified stock options and restricted stock
to employees, officers, directors, consultants and advisors. On January 1, 2017, pursuant to an annual evergreen provision contained in
the 2014 Plan, the number of shares reserved for future grants was increased by 3,127,722 shares. As of December 31, 2017, there was
a  total  of  13,043,739  shares  reserved  for  issuance  under  the  2014  Plan  and  there  were  4,460,334  shares  available  for  future  grants.
Options issued under the 2014 Plan generally vest over 4 years from the date of grant in multiple tranches and are exercisable for up to
10 years from the date of issuance.

Pursuant to the terms of an annual evergreen provision in the 2014 Plan, the number of shares of common stock available for issuance
under the 2014 Plan shall automatically increase on January 1 of each year by at least seven percent (7%) of the total number of shares
of common stock outstanding on December 31st of the preceding calendar year, or, pursuant to the terms of the 2014 Plan, in any year,
the Board of Directors may determine that such increase will provide for a lesser number of shares. In accordance with the terms of the
2014 Plan, effective as of January 1, 2018, the number of shares of common stock available for issuance under the 2014 Plan increased
by 2,500,000 shares, which was less than seven percent (7%) of the outstanding shares of common stock on December 31, 2017. As of
January 1, 2018, the 2014 Plan had a total reserve of 15,543,739 shares and there were 6,960,334 shares available for future grants.

Share-based Compensation

For stock options issued and outstanding for the years ended December 31, 2017, 2016 and 2015, the Company recorded non-cash,
stock-based  compensation  expense  of  $5,694,489  ($4,640,646  for  employees  and  $1,053,843  for  non-employees),  $3,163,534
($2,104,939  for  employees  and  $1,058,595  for  non-employees)  and  $1,153,302  ($672,071  for  employees  and  $481,231  for  non-
employees), respectively, net of estimated forfeitures.

The fair value of each option award for employees is estimated on the date of grant and for non-employees is estimated at the end of
each reporting period using the Black-Scholes option pricing model that uses the assumptions noted in the following table. Due to its
limited  operating  history,  the  Company  estimated  its  volatility  in  consideration  of  a  number  of  factors,  including  the  volatility  of
comparable public companies and, commencing in 2015, the Company also included the volatility of its own common stock, taking
into  account  the  expected  life  of  the  option.  The  Company  uses  historical  data,  as  well  as  subsequent  events  occurring  prior  to  the
issuance of the financial statements, to estimate option exercises and employee terminations in order to estimate its forfeiture rate. The
expected term of options granted under the 2014 Plan, all of which qualify as “plain vanilla” per SEC Staff Accounting Bulletin 107, is
based on the average between the vesting period and the contractual life of the options which is 6.25 years. For non-employee options,
the expected term is the contractual term. The risk-free rate is based on the yield of a U.S. Treasury security with a term consistent
with the option.

 F-16

 
 
 
 
 
 
 
 
 
 
 
 
 
 
The weighted average assumptions used principally in determining the fair value of options granted to employees were as follows:

Risk free interest rate
Expected dividend yield
Expected term in years
Expected volatility
Estimated forfeiture rate

2017

2016

2015

2.12% 
0% 

6.25 
86.01% 
5.00% 

1.70% 
0% 

6.66 
90.39% 
5.00% 

1.85%
0%

6.73 
90.68%
4.83%

For  the  year  ended  December  31,  2017,  the  assumptions  used  in  determining  the  fair  value  of  options  granted  to  nonemployees
included risk free interest rate ranging from 2.12%-2.38%, no expected dividend yield, expected term ranging from 4.91 years to 9.91
years, expected volatility ranging from 85.58% to 89.58%, and estimated forfeiture rate of 5%.

A summary of option activity for years ended December 31, 2017 and 2016 is presented below:

Options
Outstanding at December 31, 2015
Granted
Exercised
Forfeited
Outstanding at December 31, 2016
Granted
Exercised
Forfeited
Outstanding at December 31, 2017
Vested at December 31, 2017

Weighted 
Average 
Exercise 
Price

Weighted 
Average 
Remaining 
Contractual 
Term in 
Years

Intrinsic 
Value

1.03   
4.42   
1.43   
2.44   
2.54   
8.28   
0.67   
6.53   
3.75   
1.98   

7.72    $
7.02    $

29,433,877 
23,444,225 

Shares
3,982,065    $
3,020,000    $
(326,886)   $
(65,000)   $
6,610,179    $
1,681,500    $
(272,734)   $
(173,979)   $
7,844,966    $
4,514,977    $

The weighted average grant-date fair value of options granted during the years ended December 31, 2017, 2016 and 2015 was $6.22,
$3.81 and $1.41 per share, respectively. The aggregate intrinsic value of options exercised during the years ended December 31, 2017,
2016  and  2015  was  approximately  $2,092,964.  $1,004,321  and  $152,531,  respectively.  As  of  December  31,  2017  there  was
approximately  $12,542,918  of  total  unrecognized  compensation  expense,  related  to  non-vested  share-based  compensation
arrangements.  The  unrecognized  compensation  expense  is  estimated  to  be  recognized  over  a  period  of  2.87  years  at  December  31,
2017.

As summary of non-vested stock options for the years ended December 31, 2017 and 2016 is presented below:

Options
Non-vested at December 31, 2015
Granted
Vested
Forfeited
Nonvested at December 31, 2016
Granted
Vested
Forfeited
Non-vested at December 31, 2017

 F-17

Weighted 
Average 
Fair 
Value

0.85 
3.69 
1.57 
1.77 
2.86 
6.22 
2.60 
5.03 
4.61 

Shares
2,035,254    $
3,020,000    $
(1,194,600)  $
(34,380)  $
3,826,274    $
1,681,500    $
(2,003,806)  $
(173,979)  $
3,329,989    $

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
12. WARRANTS

At  December  31,  2017,  there  were  warrants  outstanding  to  purchase  1,288,500  shares  of  common  stock  with  a  weighted  average
exercise  price  of  $1.00  and  a  weighted  average  remaining  life  of  1.41  years.  No  warrants  were  exercised  during  the  year  ended
December 31, 2017. During the year ended December 31, 2016, warrants to purchase 679,500 shares of common stock were exercised
on a cashless basis resulting in the issuance of 599,780 shares and 1,250 shares of common stock were exercised on a for cash basis.
There were no warrants issued or cancelled during the year ended December 31, 2017 or 2016

For warrant issued to CFF after the balance sheet date – see Note 15.

13. RELATED PARTY TRANSACTIONS

On  September  20,  2016,  the  Company  entered  into  a  consulting  agreement  (the  “2016  Consulting  Agreement”)  with  Orchestra
Medical  Ventures,  LLC  (“Orchestra”),  of  which  a  member  of  the  Company’s  Board  of  Directors,  David  Hochman,  is  Managing
Partner. Under this agreement, Orchestra rendered a variety of consulting and advisory services relating principally to identifying and
evaluating  strategic  relationships,  licensing  opportunities,  and  business  strategies.  The  term  of  the  2016  Consulting  Agreement
commenced  on  September  20,  2016  and  expired  on  March  20,  2017.  Pursuant  to  the  terms  of  the  2016  Consulting Agreement,  the
Company paid to Orchestra cash compensation in an aggregate amount of $100,000. In connection with this agreement, the Company
granted  an  equity  incentive  award  to  Mr.  Hochman  consisting  of  options  to  purchase  50,000  shares  (“Option  Shares”)  of  common
stock (the “Option Award”) pursuant to the Company’s 2014 Equity Compensation Plan, of which fifty percent (50%) vested on the
three (3) month anniversary of the date of grant of the Option Award and the remainder of the Option Shares vested on the six (6)
month anniversary of the date of grant of the Option Award. The Option Shares were granted with an exercise price of $7.14 per share.
The Company recorded stock-based compensation expense of approximately $222,000 during the year ended December 31, 2016 and
$171,000 during the first quarter of 2017 in respect of the Option Award. No stock-based compensation expense was recorded after the
first quarter of 2017 related to the Option Shares as they were fully vested in March 2017.

14. QUARTERLY FINANCIAL INFORMATION (UNAUDITED)

Quarters Ended

  March 31, 2017
  $

1,293,697    $

June 30, 2017

    September 30, 2017     December 31, 2017  
— 

796,312    $

350,186    $

Revenue from awards
Operating expenses:

Research and development
General and administrative
Total operating expenses

Operating loss
Other income (expense):

Interest income (expense), net
Foreign currency exchange gain
(loss)

Other income (expense), net

Net loss
  $
Net loss per share, basic and diluted   $
Weighted average number of
common shares outstanding, basic
and diluted

6,366,112     
2,380,125     
8,746,237     
(7,452,540)    

5,763,660     
1,878,090     
7,641,750     
(7,291,564)    

5,622,511     
2,130,587     
7,753,098     
(6,956,786)    

8,286,682 
2,575,244 
10,861,926 
(10,861,926)

1,366     

5,271     

43,402     

133,073 

(14,265)    
(12,899)    
(7,465,439)   $
(0.16)   $

(10,594)    
(5,323)    
(7,296,887)   $
(0.15)   $

(52,212)    
(8,810)    
(6,965,596)    
(0.14)    

35,163 
168,236 
(10,693,690)
(0.20)

46,381,482     

50,193,726     

50,221,597     

53,828,680 

 F-18

 
 
 
 
 
 
 
 
 
 
 
 
   
   
      
      
      
  
   
   
   
   
   
      
      
      
  
   
   
   
   
 
 
 
 
 
  March 31, 2016
  $

396,598    $

June 30, 2016

    September 30, 2016     December 31, 2016  
375,670 

742,558    $

396,598    $

Quarters Ended

2,173,933     
1,109,889     
3,283,822     
(2,887,224)    

3,567,003     
1,021,225     
4,588,228     
(4,191,630)    

4,315,632     
1,760,696     
6,076,328     
(5,333,770)    

5,380,167 
2,567,937 
7,948,104 
(7,572,434)

(5,360)    

4,049     

1,731     

57 

343     
(5,017)    
(2,892,241)   $
(0.08)   $

(1,810)    
2,239     
(4,189,391)   $
(0.11)   $

(14,729)    
(12,998)    
(5,346,768)    
(0.12)    

2,102 
2,159 
(7,570,275)
(0.17)

37,605,210     

38,748,452     

43,783,504     

44,348,543 

Revenue from awards
Operating expenses:

Research and development
General and administrative
Total operating expenses

Operating loss
Other income (expense):

Interest income (expense), net
Foreign currency exchange gain
(loss)

Other income (expense), net

Net loss
  $
Net loss per share, basic and diluted   $
Weighted average number of
common shares outstanding, basic
and diluted

15. SUBSEQUENT EVENTS

Evergreen Provision

Pursuant to the terms of an annual evergreen provision in the 2014 Plan, the number of shares of common stock available for issuance
under the 2014 Plan shall automatically increase on January 1 of each year by at least seven percent (7%) of the total number of shares
of common stock outstanding on December 31st of the preceding calendar year, or, pursuant to the terms of the 2014 Plan, in any year,
the Board of Directors may determine that such increase will provide for a lesser number of shares. In accordance with the terms of the
2014 Plan, effective as of January 1, 2018, the number of shares of common stock available for issuance under the 2014 Plan increased
by 2,500,000 shares, such amount being less than seven percent (7%) of the outstanding shares of common stock on December 31,
2017. As  of  January  1,  2018,  the  2014  Plan  had  a  total  reserve  of  15,543,739  shares  and  there  were  6,960,334  shares  available  for
future grants.

At the Market Offering

On January 5, 2018, the Company entered into a sales agreement with Cantor Fitzgerald under which the Company may direct Cantor
Fitzgerald as its sales agent to sell common stock up to an aggregate offering of up to $50 million under an “At the Market Offering”
(“January  2018  Sales Agreement”).  Sales  of  common  stock  under  the  January  2018  Sales Agreement  were  made  pursuant  to  an
effective registration statement for an aggregate offering of up to $50 million. In February 2018, the Company sold 1,500,000 shares
of  its  common  stock  to  an  institutional  investor  under  the  January  2018  Sales  Agreement  for  which  it  received  net  proceeds  of
$11,349,000.

Cystic Fibrosis Program Related Investment Agreement

On January 26, 2018, the Company entered into the Cystic Fibrosis Program Related Investment Agreement with the Cystic Fibrosis
Foundation  (“CFF”)  (“Investment  Agreement”),  a  non-profit  drug  discovery  and  development  corporation,  pursuant  to  which  the
Company received an award for up to $25 million in funding (the “2018 CFF Award”) to support a Phase 2b Clinical Trial (the “Phase
2b  Clinical  Trial”)  of  lenabasum  in  patients  with  cystic  fibrosis,  of  which  the  Company  has  received  $6.25  million  to  date.  The
Company  expects  that  the  remainder  of  the  2018  CFF Award  will  be  paid  incrementally  upon  the  Company’s  achievement  of  the
remaining milestones related to the progress of the Phase 2b Clinical Trial, as set forth in the Investment Agreement.

Pursuant to the terms of the Investment Agreement, the Company is obligated to make certain royalty payments to CFF, including a
royalty payment of one and one-half times the amount of the 2018 CFF Award, payable in cash within sixty days upon the first receipt
of approval of lenabasum in the United States and a second royalty payment of one and one-half times the amount of the 2018 CFF
Award upon approval in another major market, as set forth in the Investment Agreement (the “Approval Royalty”). At the Company’s
election, the Company may satisfy the first of the two Approval Royalties in registered shares of the Company’s common stock.

Additionally, the Company is obligated to make (i) royalty payments to CFF of two and one-half percent of net sales from lenabasum
due within sixty days after any quarter in which such net sales occur in the Field, as defined in the Investment Agreement, (ii) royalty
payments to CFF of one percent of net sales of Non-Field Products, as defined in the Investment Agreement due within sixty days after
any  quarter  in  which  such  net  sales  occur,  and  (iii)  royalty  payments  to  CFF  of  ten  percent  of  any  amount  the  Company  and  its
stockholders receive in connection with the license, sale, or other transfer to a third party of lenabasum, if indicated for the treatment
or prevention of CF, or a change of control transaction, except that such payment shall not exceed five times the amount of the 2018
CFF Award,  with  such  payments  to  be  credited  against  any  other  net  sales  royalty  payments  due.  Either  CFF  or  the  Company  may
terminate  the  Investment Agreement  for  cause,  which  includes  the  Company’s  material  failure  to  achieve  certain  commercialization
and development milestones. The Company’s payment obligations survive the termination of the Investment Agreement.

Pursuant  to  the  terms  of  the  Investment Agreement,  the  Company  issued  a  warrant  to  CFF  to  purchase  an  aggregate  of  1,000,000
shares of the Company’s common stock (the “CFF Warrant”). The CFF Warrant is exercisable at a price equal to $13.20 per share and
is immediately exercisable for 500,000 shares of the Company’s common stock. Upon completion of the final milestone set forth in the

 
 
 
 
 
 
   
   
      
      
      
  
   
   
   
   
   
      
      
      
  
   
   
   
   
 
 
 
 
 
 
 
 
 
 
Investment Agreement  and  receipt  of  the  final  payment  from  CFF  to  the  Company  pursuant  to  the  Investment Agreement,  the  CFF
Warrant will be exercisable for the remaining 500,000 shares of the Company’s common stock. The CFF Warrant expires on January
26, 2025. Any shares of the Company’s common stock issued upon exercise of the CFF Warrant will be unregistered and subject to a
one-year lock-up.

 F-19

 
 
 
 
 
EXHIBIT 4.8

Warrant Certificate No. F-1

NEITHER THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES ISSUABLE UPON THE EXERCISE
OF  THIS  WARRANT  HAVE  BEEN  REGISTERED  UNDER  THE  SECURITIES ACT  OF  1933, AS AMENDED  (THE  “ACT”),  OR
ANY  STATE  SECURITIES  LAWS, AND  NEITHER  SUCH  SECURITIES  NOR ANY  INTEREST  THEREIN  MAY  BE  OFFERED,
SOLD, ASSIGNED OR OTHERWISE TRANSFERRED UNLESS (1) A REGISTRATION STATEMENT WITH RESPECT THERETO
IS EFFECTIVE UNDER THE ACT AND ANY APPLICABLE STATE SECURITIES LAWS, OR (2) AN EXEMPTION FROM SUCH
REGISTRATION  EXISTS  AND  THE  COMPANY  RECEIVES  AN  OPINION  OF  COUNSEL  TO  THE  HOLDER  OF  SUCH
SECURITIES,  WHICH  COUNSEL AND  OPINION ARE  SATISFACTORY  TO  THE  COMPANY,  THAT  SUCH  SECURITIES  MAY
BE  OFFERED,  SOLD,  PLEDGED,  ASSIGNED  OR  TRANSFERRED  IN  THE  MANNER  CONTEMPLATED  WITHOUT  AN
EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT OR APPLICABLE STATE SECURITIES LAWS.

Effective Date: January 26, 2018

Void After: January 26, 2025

CORBUS PHARMACEUTICALS HOLDINGS, INC.

WARRANT TO PURCHASE COMMON STOCK

Corbus  Pharmaceuticals  Holdings,  Inc.,  a  Delaware  corporation  (the  “Company”),  for  value  received  on  January  26,  2018  (the
“Effective Date”), hereby issues to The Cystic Fibrosis Foundation (the “ Holder”) this warrant (the “Warrant”) to purchase, 1,000,000
shares  (each  such  share  as  from  time  to  time  adjusted  as  hereinafter  provided  being  a  “Warrant Share”  and  all  such  shares  being  the
“Warrant Shares”) of the Company’s Common Stock (as defined below), at the Exercise Price (as defined below), as adjusted from time
to time as provided herein, on or before January 26, 2025 (the “Expiration Date”), all subject to the following terms and conditions.

As used in this Warrant, (i) “Business Day” means any day other than Saturday, Sunday or any other day on which commercial banks in
the City of New York, New York, are authorized or required by law or executive order to close; (ii) “ Common Stock” means the common
stock of the Company, par value $0.0001 per share,  including  any  securities  issued  or  issuable  with  respect  thereto  or  into  which  or  for
which such shares may be exchanged for, or converted into, pursuant to any stock dividend, stock split, stock combination, recapitalization,
reclassification,  reorganization  or  other  similar  event;  (iii)  “Exercise  Price”  means  $13.20  per  share  of  Common  Stock,  subject  to
adjustment as provided herein; (iv) “Trading Day” means any day on which the Common Stock is traded (or available for trading) on its
principal  Trading  Market  (as  defined  below);  and  (v)  “Affiliate”  means  any  person  that,  directly  or  indirectly,  through  one  or  more
intermediaries,  controls,  is  controlled  by,  or  is  under  common  control  with,  a  person,  as  such  terms  are  used  and  construed  in  Rule  144
promulgated under the Securities Act of 1933, as amended (the “Securities Act”). For purposes hereof, “Trading Market” means any of
the  following  markets  or  exchanges  on  which  the  Common  Stock  is  listed  or  quoted  for  trading  on  the  date  in  question:  the  New  York
Stock Exchange, the NYSE MKT, the NASDAQ Global Select Market, the NASDAQ Global Market, the NASDAQ Capital Market, or
any other national securities exchange, as well as the OTC Bulletin Board or any tier of the OTC Markets.

1. DURATION AND EXERCISE OF WARRANTS

(a) Exercise Period. Commencing on the Effective Date of this Warrant, the Holder may exercise this Warrant for up to 500,000 shares of
Common Stock (the “Initial Exercise Amount”). Upon the Completion of the CF Trial (as defined below), the Holder may exercise this
Warrant for the remaining 500,000 shares of Common Stock (the “Additional Exercise Amount”) issuable pursuant to the terms of this
Warrant. At no point in time, may the Holder exercise this Warrant for more than 1,000,000 shares of Common Stock in the aggregate. The
Holder may exercise this Warrant, in whole or in part (in accordance with the limitations set forth in this Section 1(a)), on any Business Day
on or before 5:00 P.M., Eastern Time, on the Expiration Date, at which time this Warrant shall become void and of no value. For purposes
of this Warrant, the term “Completion of the CF Trial” shall mean completion of the final Milestone by the Company and receipt of the
final Milestone Payment by the Company from Cystic Fibrosis Foundation as set forth in Exhibit B to the Cystic Fibrosis Program Related
Investment Agreement by and between Corbus Pharmaceuticals, Inc. and Cystic Fibrosis Foundation dated January 26, 2018.

 
 
 
 
 
 
 
 
 
 
 
 
(b) Exercise Procedures.

(i) While this Warrant remains outstanding and exercisable in accordance with Section 1(a) , the Holder may exercise this Warrant in whole
or in part at any time and from time to time by:

(A) delivery to the Company of a duly executed copy of the Notice of Exercise attached as Exhibit A;

(B) surrender of this Warrant to the Secretary of the Company at its principal offices or at such other office or agency as the Company may
specify in writing to the Holder; and

(C) payment of the then-applicable Exercise Price per share multiplied by the number of Warrant Shares being purchased upon exercise of
the Warrant (such amount, the “ Aggregate Exercise Price”) made in the form of cash, or by certified check, bank draft or money order
payable in lawful money of the United States of America.

(ii) Upon the exercise of this Warrant in compliance with the provisions of Section 1(a) and this Section 1(b), the Company shall promptly
issue and cause to be delivered to the Holder a certificate for the Warrant Shares purchased by the Holder. Each exercise of this Warrant
shall be effective immediately prior to the close of business on the date (the “Date of Exercise”) that the conditions set forth in this Section
1(b) have been satisfied, as the case may be. On the first Business Day following the date on which the Company has received each of the
Notice  of  Exercise  and  the  Aggregate  Exercise  Price  (the  “ Exercise  Delivery  Documents”),  the  Company  shall  transmit  an
acknowledgment of receipt of the Exercise Delivery Documents to the Company’s transfer agent (the “ Transfer Agent”). On or before the
second Business Day following the date on which the Company has received all of the Exercise Delivery Documents (the “Share Delivery
Date”),  the  Company  shall  (X)  provided  that  the  Transfer  Agent  is  participating  in  The  Depository  Trust  Company  (“ DTC”)  Fast
Automated  Securities  Transfer  Program,  upon  the  request  of  the  Holder,  credit  such  aggregate  number  of  shares  of  Common  Stock  to
which  the  Holder  is  entitled  pursuant  to  such  exercise  to  the  Holder’s  or  its  designee’s  balance  account  with  DTC  through  its  Deposit
Withdrawal Agent Commission system, or (Y) if the Transfer Agent is not participating in the DTC Fast Automated Securities Transfer
Program,  issue  and  dispatch  by  overnight  courier  to  the  address  as  specified  in  the  Notice  of  Exercise,  a  certificate,  registered  in  the
Company’s share register in the name of the Holder or its designee, for the number of shares of Common Stock to which the Holder is
entitled  pursuant  to  such  exercise.  Upon  delivery  of  the  Exercise  Delivery  Documents,  the  Holder  shall  be  deemed  for  all  corporate
purposes to have become the holder of record of the Warrant Shares with respect to which this Warrant has been exercised, irrespective of
the date of delivery of the certificates evidencing such Warrant Shares.

(c) Partial Exercise. This Warrant shall be exercisable, either in its entirety or, from time to time, for part only of the number of Warrant
Shares referenced by this Warrant for which the Warrant is then currently exercisable. If this Warrant is submitted in connection with any
exercise  pursuant  to  Section  1  and  the  number  of  Warrant  Shares  represented  by  this  Warrant  submitted  for  exercise  is  greater  than  the
actual number of Warrant Shares being acquired upon such an exercise, then the Company shall as soon as practicable after any exercise
and  at  its  own  expense,  issue  a  new  Warrant  of  like  tenor  representing  the  right  to  purchase  the  number  of  Warrant  Shares  purchasable
immediately prior to such exercise under this Warrant, less the number of Warrant Shares with respect to which this Warrant is exercised.

(d) Disputes. In the case of a dispute as to the determination of the Exercise Price or the arithmetic calculation of the Warrant Shares, the
Company shall promptly issue to the Holder the number of Warrant Shares that are not disputed and resolve such dispute in accordance
with Section 16.

-2-

 
 
 
 
 
 
 
 
 
 
2. ISSUANCE OF WARRANT SHARES

(a)  The  Company  covenants  that  all  Warrant  Shares  will,  upon  issuance  in  accordance  with  the  terms  of  this  Warrant,  be  (i)  duly
authorized, fully paid and non-assessable, and (ii) free from all liens, charges and security interests, with the exception of claims arising
through the acts or omissions of any Holder and except as arising from applicable Federal and state securities laws.

(b) The Company shall register this Warrant upon records to be maintained by the Company for that purpose in the name  of  the  record
holder of such Warrant from time to time. The Company may deem and treat the registered Holder of this Warrant as the absolute owner
thereof for the purpose of any exercise thereof, any distribution to the Holder thereof and for all other purposes.

(c)  The  Company  will  not,  by  amendment  of  its  certificate  of  incorporation,  by-laws  or  through  any  reorganization,  transfer  of  assets,
consolidation,  merger,  dissolution,  issue  or  sale  of  securities  or  any  other  voluntary  action,  avoid  or  seek  to  avoid  the  observance  or
performance of any of the terms to be observed or performed hereunder by the Company, but will at all times in good faith assist in the
carrying out of all the provisions of this Warrant and in the taking of all action necessary or appropriate in order to protect the rights of the
Holder to exercise this Warrant, or against impairment of such rights.

3. ADJUSTMENTS OF EXERCISE PRICE, NUMBER AND TYPE OF WARRANT SHARES

(a) The Exercise Price and the number of shares purchasable upon the exercise of this Warrant shall be subject to adjustment from time to
time upon the occurrence of certain events described in this Section 3; provided, that notwithstanding the provisions of this Section 3, the
Company  shall  not  be  required  to  make  any  adjustment  if  and  to  the  extent  that  such  adjustment  would  require  the  Company  to  issue  a
number of shares of Common Stock in excess of its authorized but unissued shares of Common Stock, less all amounts of Common Stock
that  have  been  reserved  for  issue  upon  the  conversion  of  all  outstanding  securities  convertible  into  shares  of  Common  Stock  and  the
exercise of all outstanding options, warrants and other rights exercisable for shares of Common Stock. If the Company does not have the
requisite number of authorized but unissued shares of Common Stock to make any adjustment, the Company shall use its commercially
reasonable efforts to obtain the necessary stockholder consent to increase the authorized number of shares of Common Stock to make such
an adjustment pursuant to this Section 3.

(i) Subdivision or Combination of Stock. In case the Company shall at any time subdivide (whether by way of stock dividend, stock split or
otherwise) its outstanding shares of Common Stock into a greater number of shares, the Exercise Price in effect immediately prior to such
subdivision shall be proportionately reduced and the number of Warrant Shares, the Initial Exercise Amount and the Additional Exercise
Amount  shall  be  proportionately  increased,  and  conversely,  in  case  the  outstanding  shares  of  Common  Stock  of  the  Company  shall  be
combined (whether by way of stock combination, reverse stock split or otherwise) into a smaller number of shares, the Exercise Price in
effect  immediately  prior  to  such  combination  shall  be  proportionately  increased  and  the  number  of  Warrant  Shares,  the  Initial  Exercise
Amount  and  the  Additional  Exercise  Amount  shall  be  proportionately  decreased.  The  Exercise  Price,  the  Warrant  Shares,  the  Initial
Exercise Amount and the Additional Exercise Amount, as so adjusted, shall be readjusted in the same manner upon the happening of any
successive event or events described in this Section 3(a)(i).

(ii) Dividends in Stock, Property, Reclassification. If at any time, or from time to time, all of the holders of Common Stock (or any shares of
stock or other securities at the time receivable upon the exercise of this Warrant) shall have received or become entitled to receive, without
payment therefore:

(A) any shares of stock or other securities that are at any time directly or indirectly convertible into or exchangeable for Common Stock, or
any rights or options to subscribe for, purchase or otherwise acquire any of the foregoing by way of dividend or other distribution, or

(B) additional stock or other securities or property (including cash) by way of spin-off, split-up, reclassification, combination of shares or
similar  corporate  rearrangement  (other  than  shares  of  Common  Stock  issued  as  a  stock  split  or  adjustments  in  respect  of  which  shall  be
covered  by  the  terms  of  Section  3(a)(i)  above),  then  and  in  each  such  case,  the  Exercise  Price  and  the  number  of  Warrant  Shares  to  be
obtained upon exercise of this Warrant shall be adjusted proportionately, and the Holder hereof shall, upon the exercise of this Warrant, be
entitled  to  receive,  in  addition  to  the  number  of  shares  of  Common  Stock  receivable  thereupon,  and  without  payment  of  any  additional
consideration therefor, the amount of stock and other securities and property (including cash in the cases referred to above) that such Holder
would hold on the date of such exercise had such Holder been the holder of record of such Common Stock as of the date on which holders
of Common Stock received or became entitled to receive such shares or all other additional stock and other securities and property. The
Exercise Price and the Warrant Shares, as so adjusted, shall be readjusted in the same manner upon the happening of any successive event
or events described in this Section 3(a)(ii).

-3-

 
 
 
 
 
 
 
 
 
 
 
 
(iii) Reorganization, Reclassification, Consolidation, Merger or Sale. If any recapitalization, reclassification or reorganization of the capital
stock of the Company, or any consolidation or merger of the Company with another corporation, or the sale of all or substantially all of its
assets or other transaction shall be effected in such a way that holders of Common Stock shall be entitled to receive stock, securities, or
other  assets  or  property  (an  “Organic Change”),  then,  as  a  condition  of  such  Organic  Change,  lawful  and  adequate  provisions  shall  be
made  by  the  Company  whereby  the  Holder  hereof  shall  thereafter  have  the  right  to  purchase  and  receive  (in  lieu  of  the  shares  of  the
Common  Stock  of  the  Company  immediately  theretofore  purchasable  and  receivable  upon  the  exercise  of  the  rights  represented  by  this
Warrant) such shares of stock, securities or other assets or property as may be issued or payable with respect to or in exchange for a number
of  outstanding  shares  of  such  Common  Stock  equal  to  the  number  of  shares  of  such  stock  immediately  theretofore  purchasable  and
receivable assuming the full exercise of the rights represented by this Warrant. In the event of any Organic Change, appropriate provision
shall be made by the Company with respect to the rights and interests of the Holder to the end that the provisions hereof (including, without
limitation, provisions for adjustments of the Exercise Price and of the number of shares purchasable and receivable upon the exercise of this
Warrant) shall thereafter be applicable, in relation to any shares of stock, securities or assets thereafter deliverable upon the exercise hereof.
The Company will not affect any such consolidation, merger or sale unless, prior to the consummation thereof, the successor corporation (if
other  than  the  Company)  resulting  from  such  consolidation  or  merger  or  the  corporation  purchasing  such  assets  shall  assume  by  written
instrument reasonably satisfactory in form and substance to the Holder executed and mailed or delivered to the registered Holder hereof at
the  last  address  of  such  Holder  appearing  on  the  books  of  the  Company,  the  obligation  to  deliver  to  such  Holder  such  shares  of  stock,
securities or assets as, in accordance with the foregoing provisions, such Holder may be entitled to purchase. If there is an Organic Change,
then the Company shall cause to be mailed to the Holder at its last address as it shall appear on the books and records of the Company, at
least 10 calendar days before the effective date of the Organic Change, a notice stating the date on which such Organic Change is expected
to  become  effective  or  close,  and  the  date  as  of  which  it  is  expected  that  holders  of  the  Common  Stock  of  record  shall  be  entitled  to
exchange their shares for securities, cash, or other property delivered upon such Organic Change; provided, that the failure to mail such
notice or any defect therein or in the mailing thereof shall not affect the validity of the corporate action required to be specified in such
notice. The Holder is entitled to exercise this Warrant during the 10-day period for the amount of shares of Common Stock for which this
Warrant is then currently exercisable commencing on the date of such notice to the effective date of the event triggering such notice. In any
event,  the  successor  corporation  (if  other  than  the  Company)  resulting  from  such  consolidation  or  merger  or  the  corporation  purchasing
such assets shall be deemed to assume such obligation to deliver to such Holder such shares of stock, securities or assets even in the absence
of a written instrument assuming such obligation to the extent such assumption occurs by operation of law.

(b) Certificate as to Adjustments . Upon the occurrence of each adjustment or readjustment pursuant to this Section 3, the Company at its
expense  shall  promptly  compute  such  adjustment  or  readjustment  in  accordance  with  the  terms  hereof  and  furnish  to  each  Holder  a
certificate  setting  forth  such  adjustment  or  readjustment  and  showing  in  detail  the  facts  upon  which  such  adjustment  or  readjustment  is
based. The Company shall promptly furnish or cause to be furnished to such Holder a like certificate setting forth: (i) such adjustments and
readjustments;  and  (ii)  the  number  of  shares  and  the  amount,  if  any,  of  other  property  which  at  the  time  would  be  received  upon  the
exercise of the Warrant.

(c) Certain Events.  If  any  event  occurs  as  to  which  the  other  provisions  of  this  Section  3  are  not  strictly  applicable  but  the  lack  of  any
adjustment would not fairly protect the purchase rights of the Holder under this Warrant in accordance with the basic intent and principles
of such provisions, or if strictly applicable would not fairly protect the purchase rights of the Holder under this Warrant in accordance with
the  basic  intent  and  principles  of  such  provisions,  then  the  Company’s  Board  of  Directors  will,  in  good  faith,  make  an  appropriate
adjustment  to  protect  the  rights  of  the  Holder; provided, that no such adjustment pursuant to this Section 3(c) will increase the Exercise
Price or decrease the number of Warrant Shares as otherwise determined pursuant to this Section 3.

-4-

 
 
 
 
 
4. RESERVED

5. TRANSFERS AND EXCHANGES OF WARRANT AND WARRANT SHARES

(a) Registration of Transfers and Exchanges.  Subject  to  Section  5(c),  upon  the  Holder’s  surrender  of  this  Warrant,  with  a  duly  executed
copy of the Form of Assignment attached as Exhibit B, to the Secretary of the Company at its principal offices or at such other office or
agency as the Company may specify in writing to the Holder, the Company shall register the transfer of all or any portion of this Warrant.
Upon  such  registration  of  transfer,  the  Company  shall  issue  a  new  Warrant,  in  substantially  the  form  of  this  Warrant,  evidencing  the
acquisition  rights  transferred  to  the  transferee  and  a  new  Warrant,  in  similar  form,  evidencing  the  remaining  acquisition  rights  not
transferred, to the Holder requesting the transfer.

(b) Warrant  Exchangeable  for  Different  Denominations.  The  Holder  may  exchange  this  Warrant  for  a  new  Warrant  or  Warrants,  in
substantially the form of this Warrant, evidencing in the aggregate the right to purchase the number of Warrant Shares which may then be
purchased hereunder, each of such new Warrants to be dated the date of such exchange and to represent the right to purchase such number
of Warrant Shares as shall be designated by the Holder. The Holder shall surrender this Warrant with duly executed instructions regarding
such  re-certification  of  this  Warrant  to  the  Secretary  of  the  Company  at  its  principal  offices  or  at  such  other  office  or  agency  as  the
Company may specify in writing to the Holder.

(c) Restrictions on Transfers. This Warrant may not be transferred at any time without: (i) registration under the Securities Act; or (ii) an
exemption  from  such  registration  and  a  written  opinion  of  legal  counsel  addressed  to  the  Company  that  the  proposed  transfer  of  the
Warrant  may  be  effected  without  registration  under  the  Securities  Act,  which  opinion  will  be  in  form  and  from  counsel  reasonably
satisfactory to the Company.

(d) Permitted Transfers and Assignments. Notwithstanding any provision to the contrary in this Section 5, the Holder may transfer, with or
without  consideration,  this  Warrant  or  any  of  the  Warrant  Shares  (or  a  portion  thereof)  to  the  Holder’s Affiliates  without  obtaining  the
opinion  from  counsel  that  may  be  required  by  Section  5(c)(ii), provided,  that  the  Holder  delivers  to  the  Company  and  its  counsel
certification,  documentation,  and  other  assurances  reasonably  required  by  the  Company’s  counsel  to  enable  the  Company’s  counsel  to
render an opinion to the Company’s Transfer Agent that such transfer does not violate applicable securities laws.

6. MUTILATED OR MISSING WARRANT CERTIFICATE

If this Warrant is mutilated, lost, stolen or destroyed, upon request by the Holder, the Company will, at its expense, issue, in exchange for
and upon cancellation of the mutilated Warrant, or in substitution for the lost, stolen or destroyed Warrant, a new Warrant, in substantially
the form of this Warrant, representing the right to acquire the equivalent number of Warrant Shares;  provided, that, as a prerequisite to the
issuance of a substitute Warrant, the Company may require satisfactory evidence of loss, theft or destruction as well as an indemnity from
the Holder of a lost, stolen or destroyed Warrant.

7. PAYMENT OF TAXES

The Company will pay all transfer and stock issuance taxes attributable to the preparation, issuance and delivery of this Warrant and the
Warrant  Shares  (and  replacement  Warrants)  including,  without  limitation,  all  documentary  and  stamp  taxes;  provided, however,  that  the
Company  shall  not  be  required  to  pay  any  tax  in  respect  of  the  transfer  of  this  Warrant,  or  the  issuance  or  delivery  of  certificates  for
Warrant Shares or other securities in respect of the Warrant Shares to any person or entity other than to the Holder.

-5-

 
 
 
 
 
 
 
 
 
 
 
 
8. FRACTIONAL WARRANT SHARES

No fractional Warrant Shares shall be issued upon exercise of this Warrant. The Company, in lieu of issuing any fractional Warrant Share,
shall round up the number of Warrant Shares issuable to nearest whole share.

9. NO STOCK RIGHTS AND LEGEND

No holder of this Warrant, as such, shall be entitled to vote or be deemed the holder of any other securities of the Company that may at any
time be issuable on the exercise hereof, nor shall anything contained herein be construed to confer upon the holder of this Warrant, as such,
the rights of a stockholder of the Company or the right to vote for the election of directors or upon any matter submitted to stockholders at
any  meeting  thereof,  or  give  or  withhold  consent  to  any  corporate  action  or  to  receive  notice  of  meetings  or  other  actions  affecting
stockholders (except as provided herein), or to receive dividends or subscription rights or otherwise (except as provide herein).

Each certificate for Warrant Shares initially issued upon the exercise of this Warrant, and each certificate for Warrant Shares issued to any
subsequent transferee of any such certificate, shall be stamped or otherwise imprinted with a legend in substantially the following form:

“THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT
OF  1933, AS AMENDED  (THE  “ACT”),  OR ANY  STATE  SECURITIES  LAWS, AND  NEITHER  SUCH  SECURITIES  NOR ANY
INTEREST  THEREIN  MAY  BE  OFFERED,  SOLD,  PLEDGED,  ASSIGNED  OR  OTHERWISE  TRANSFERRED  UNLESS  (1)  A
REGISTRATION STATEMENT WITH RESPECT THERETO IS EFFECTIVE UNDER THE ACT AND ANY APPLICABLE STATE
SECURITIES  LAWS,  OR  (2) AN  EXEMPTION  FROM  SUCH  REGISTRATION  EXISTS AND  THE  COMPANY  RECEIVES AN
OPINION  OF  COUNSEL  TO  THE  HOLDER  OF  SUCH  SECURITIES,  WHICH  COUNSEL AND  OPINION ARE  REASONABLY
SATISFACTORY  TO  THE  COMPANY,  THAT  SUCH  SECURITIES  MAY  BE  OFFERED,  SOLD,  PLEDGED,  ASSIGNED  OR
TRANSFERRED IN THE MANNER CONTEMPLATED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT UNDER THE
ACT OR APPLICABLE STATE SECURITIES LAWS.”

10. LOCK-UP

Any Warrant Shares acquired pursuant to an exercise of this Warrant must not be transferred, sold, hypothecated or otherwise disposed for a
period of one year from the date on which the Share Delivery Date .

11. NOTICES

All notices, consents, waivers, and other communications under this Warrant must be in writing and will be deemed given to a party when
(a) delivered to the appropriate address by hand or by nationally recognized overnight courier service (costs prepaid); (b) sent by facsimile
or e-mail with confirmation of transmission by the transmitting equipment; (c) received or rejected by the addressee, if sent by certified
mail, return receipt requested, if to the registered Holder hereof; or (d) seven (7) days after the placement of the notice into the mails (first
class postage prepaid), to the Holder at the address, facsimile number, or e-mail address furnished by the registered Holder to the Company
in accordance with the Subscription Agreement by and between the Company and the Holder, or if to the Company, to it at One Kendall
Square, Bldg 200, Cambridge, MA 02139, Attn: Yuval Cohen, CEO (or to such other address, facsimile number, or e-mail address as the
Holder or the Company as a party may designate by notice the other party).

12. SEVERABILITY

If a court of competent jurisdiction holds any provision of this Warrant invalid or unenforceable, the other provisions of this Warrant will
remain in full force and effect. Any provision of this Warrant held invalid or unenforceable only in part or degree will remain in full force
and effect to the extent not held invalid or unenforceable.

-6-

 
 
 
 
 
 
 
 
 
 
 
 
 
 
13. BINDING EFFECT

This Warrant shall be binding upon and inure to the sole and exclusive benefit of the Company, its successors and assigns, the registered
Holder or Holders from time to time of this Warrant and the Warrant Shares.

14. SURVIVAL OF RIGHTS AND DUTIES

This Warrant shall terminate and be of no further force and effect on the earlier of 5:00 P.M., Eastern Time, on the Expiration Date or the
date on which this Warrant has been exercised in full.

15. GOVERNING LAW

This Warrant will be governed by and construed under the laws of the State of New York without regard to conflicts of laws principles that
would require the application of any other law.

16. DISPUTE RESOLUTION

In the case of a dispute as to the determination of the Exercise Price or the arithmetic calculation of the Warrant Shares, the Company shall
submit  the  disputed  determinations  or  arithmetic  calculations  via  facsimile  within  two  (2)  Business  Days  of  receipt  of  the  Notice  of
Exercise  giving  rise  to  such  dispute,  as  the  case  may  be,  to  the  Holder.  If  the  Holder  and  the  Company  are  unable  to  agree  upon  such
determination  or  calculation  of  the  Exercise  Price  or  the  Warrant  Shares  within  three  Business  Days  of  such  disputed  determination  or
arithmetic  calculation  being  submitted  to  the  Holder,  then  the  Company  shall,  within  two  Business  Days,  submit  via  facsimile  (a)  the
disputed determination of the Exercise Price to an independent, reputable investment bank selected by the Company and approved by the
Holder or (b) the disputed arithmetic calculation of the Warrant Shares to the Company’s independent, outside accountant. The Company
shall  cause  at  its  expense  the  investment  bank  or  the  accountant,  as  the  case  may  be,  to  perform  the  determinations  or  calculations  and
notify the Company and the Holder of the results no later than ten (10) Business Days from the time it receives the disputed determinations
or calculations. Such investment bank’s or accountant’s determination or calculation, as the case may be, shall be binding upon all parties
absent demonstrable error.

17. NOTICES OF RECORD DATE

Upon (a) any establishment by the Company of a record date of the holders of any class of securities for the purpose of determining the
holders thereof who are entitled to receive any dividend or other distribution, or right or option to acquire securities of the Company, or any
other  right;  or  (b)  any  capital  reorganization,  reclassification,  recapitalization,  merger  or  consolidation  of  the  Company  with  or  into  any
other corporation, any transfer of all or substantially all the assets of the Company, or any voluntary or involuntary dissolution, liquidation
or winding up of the Company, or the sale, in a single transaction, of a majority of the Company’s voting stock (whether newly issued, or
from treasury, or previously issued and then outstanding, or any combination thereof), the Company shall mail to the Holder at least ten
(10) Business Days, or such longer period as may be required by law, prior to the record date specified therein, a notice specifying; (i) the
date established as the record date for the purpose of such dividend, distribution, option or right and a description of such dividend, option
or right; (ii) the date on which any such reorganization, reclassification, transfer, consolidation, merger, dissolution, liquidation or winding
up,  or  sale  is  expected  to  become  effective;and  (iii)  the  date,  if  any,  fixed  as  to  when  the  holders  of  record  of  Common  Stock  shall  be
entitled to exchange their shares of Common Stock for securities or other property deliverable upon such reorganization, reclassification,
transfer, consolation, merger, dissolution, liquidation or winding up.

18. RESERVATION OF SHARES

The Company shall reserve and keep available out of its authorized but unissued shares of Common Stock for issuance upon the exercise of
this  Warrant,  free  from  pre-emptive  rights,  such  number  of  shares  of  Common  Stock  for  which  this  Warrant  shall  from  time  to  time  be
exercisable. The Company will take all such reasonable action as may be necessary to assure that such Warrant Shares may be issued as
provided  herein  without  violation  of  any  applicable  law  or  regulation.  Without  limiting  the  generality  of  the  foregoing,  the  Company
covenants  that  it  will  use  commercially  reasonable  efforts  to  take  all  such  action  as  may  be  necessary  or  appropriate  in  order  that  the
Company  may  validly  and  legally  issue  fully  paid  and  nonassessable  Warrant  Shares  upon  the  exercise  of  this  Warrant  and  use
commercially reasonable efforts to obtain all such authorizations, exemptions or consents, including but not limited to consents from the
Company’s stockholders or Board of Directors or any public regulatory body, as may be necessary to enable the Company to perform its
obligations under this Warrant.

19. NO THIRD PARTY RIGHTS

This Warrant is not intended, and will not be construed, to create any rights in any parties other than the Company and the Holder, and no
person or entity may assert any rights as third-party beneficiary hereunder.

[SIGNATURE PAGE FOLLOWS]

-7-

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
IN WITNESS WHEREOF, the Company has caused this Warrant to be duly executed as of the date first set forth above.

CORBUS PHARMACEUTICALS HOLDINGS, INC.

/s/ Yuval Cohen

By:
Name: Yuval Cohen
Title: Chief Executive Officer

-8-

 
 
 
 
 
 
 
 
 
 
EXHIBIT A NOTICE

OF EXERCISE

(To be executed by the Holder of Warrant if such Holder desires to exercise Warrant)

To Corbus Pharmaceuticals Holdings, Inc.:

The  undersigned  hereby  irrevocably  elects  to  exercise  this  Warrant  and  to  purchase  thereunder,  [                              ]  full  shares  of  Corbus
Pharmaceuticals Holdings, Inc. Common Stock issuable upon exercise of the Warrant and delivery of:

$[              ] (in cash as provided for in the foregoing Warrant) and any applicable taxes payable by the undersigned pursuant to such
Warrant.

The undersigned requests that certificates for such shares be issued in the name of:

(Please print name, address and social security or federal employer
identification number (if applicable))

If the shares issuable upon this exercise of the Warrant are not all of the Warrant Shares which the Holder is entitled to acquire upon the
exercise of the Warrant, the undersigned requests that a new Warrant evidencing the rights not so exercised be issued in the name of and
delivered to:

(Please print name, address and social security or federal employer
identification number (if applicable))

Name of Holder (print):
(Signature):
(By:)
(Title:)
Dated:

-9-

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EXHIBIT B

FORM OF ASSIGNMENT

FOR VALUE RECEIVED, [                        ] hereby sells, assigns and transfers to each assignee set forth below all of the rights of the
undersigned under the Warrant (as defined in and evidenced by the attached Warrant) to acquire the number of Warrant Shares set opposite
the name of such assignee below and in and to the foregoing Warrant with respect to said acquisition rights and the shares issuable upon
exercise of the Warrant:

Name of Assignee

Address

Number of Shares

If the total of the Warrant Shares are not all of the Warrant Shares evidenced by the foregoing Warrant, the undersigned requests that a new
Warrant evidencing the right to acquire the Warrant Shares not so assigned be issued in the name of and delivered to the undersigned.

Name of Holder (print):
(Signature):
(By:)
(Title:)
Dated:

-10-

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CONFIDENTIAL TREATMENT

CONFIDENTIAL  TREATMENT  HAS  BEEN  REQUESTED  AS  TO  CERTAIN  PORTIONS  OF  THIS  DOCUMENT.  EACH
SUCH PORTION, WHICH HAS BEEN OMITTED HEREIN AND REPLACED WITH AN ASTERISK [*], HAS BEEN FILED
SEPERATELY WITH THE SECURITIES AND EXCHANGE COMMISSION.

CYSTIC FIBROSIS PROGRAM RELATED INVESTMENT AGREEMENT

Execution Copy

Exhibit 10.33

by and between

Corbus Pharmaceuticals, Inc.

and

Cystic Fibrosis Foundation

 
 
 
 
 
 
 
 
 
 
 
Cystic Fibrosis Program Related Investment Agreement

ARTICLE I – DEFINITIONS

ARTICLE II – DEVELOPMENT PLAN

2.1
2.2
2.3
2.4
2.5

Commencement; Objective
Duration of the Development Plan
Development Diligence
Project Advisory Group
Delivery of Information to the PAG

ARTICLE III – AWARD PAYMENTS; RECORDS

3.2

Records; Reporting Obligations; Audits

ARTICLE IV – COMMERCIALIZATION; ROYALTIES

4.1
4.2
4.3
4.4
4.5

Development and Commercialization of a Product
Royalties
Warrants
Sales Reports
Transferee Liability

ARTICLE V – CONFIDENTIALITY

5.1
5.2

Confidentiality
Publicity; Use of Name

ARTICLE VI – PUBLICATION

ARTICLE VII – INDEMNIFICATION AND INSURANCE

7.1
7.2
7.3
7.4
7.5

Indemnification by Corbus
Claims Procedures
Participation; Assuming Control of the Defense
Insurance
Limitation of Liability

ARTICLE VIII – PATENTABLE INVENTIONS

8.1
8.2
8.3
8.4
8.5
8.6

Ownership
Exclusive License Grant
Preparation
Costs
Abandonment
No License

ARTICLE IX – TERM AND TERMINATION

9.1
9.2
9.3
9.4
9.5

Term
Termination by CFF For Cause
Termination for CFF Breach
General Effect of Termination; Survival
Prior Agreement

 - i -

2

10

10
10
10
11
12

13

15

17

17
17
19
19
20

21

21
23

24

25

25
25
26
26
27

27

27
27
28
28
28
28

29

29
29
30
30
30

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ARTICLE X – REPRESENTATIONS AND WARRANTIES

10.1
10.2

Representations and Warranties of Corbus
Representations and Warranties of CFF

ARTICLE XI – MISCELLANEOUS PROVISIONS

Governing Law
Dispute Resolution

11.1
11.2
11.3 Waiver
11.4
11.5
11.6
11.7
11.8
11.9
11.10 Headings
11.11
11.12 No Impairment

Force Majeure
Severability
Assignment
Counterparts
No Agency
Notice

Entire Agreement

Exhibit A – Development Plan

Exhibit B – Budget and Milestone Payments

Exhibit C - CFF Patents

Exhibit D – Warrants to CFF

Exhibits

 - ii -

31

31
31

31

31
32
32
32
33
33
34
34
34
36
36
36

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
PROGRAM RELATED INVESTMENT AGREEMENT

This Agreement  (this  “Agreement”)  is  made  on  this  26th  day  of  January,  2018  (the  “Effective Date”)  by  and  between  Corbus
Pharmaceuticals, Inc. (“Corbus”), a Delaware corporation, with its principal office at 100 River Ridge Drive, Norwood, MA 02062, and
Cystic  Fibrosis  Foundation  (“CFF”),  a  nonprofit  corporation  with  its  principal  offices  at  4550  Montgomery Ave,  Bethesda,  Maryland,
20814. Corbus and CFF are each a “Party,” and, collectively, the “Parties.”

WHEREAS, CFF’s principal charitable mission is the discovery and development of drugs to cure or mitigate Cystic Fibrosis, to

which CFF brings significant scientific, human resources and financial support; and

WHEREAS, Corbus is developing Lenabasum for the treatment of rare, chronic and serious inflammatory and fibrotic diseases

including (i) systemic sclerosis (ii) Cystic Fibrosis (iii) dermatomyositis and (iv) systemic lupus erythematosus; and

WHEREAS, Corbus desires to prepare for and conduct a Phase 2 Clinical Trial for Lenabasum in cystic fibrosis patients; and

WHEREAS, CFF  desires  to  provide  an Award  to  fund  the  Phase  2  Clinical  Trial  on  the  terms  and  conditions  set  forth  in  this

Agreement and Corbus desires to accept the Award;

NOW, THEREFORE,  in  consideration  of  the  mutual  covenants  set  forth  in  this Agreement,  and  for  other  good  and  valuable

consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties agree as follows:

 
 
 
 
 
 
 
 
 
 
ARTICLE I – DEFINITIONS

For  purposes  of  this Agreement,  the  terms  defined  in  this Article  1  shall  have  the  following  meanings  whether  used  in  their

singular or plural forms. Use of the singular shall include the plural and vice versa, unless the context requires otherwise:

1.1 “Affiliate” shall mean, with respect to any Person, any other Person which directly or indirectly, by itself or through one or
more intermediaries, controls, or is controlled by, or is under direct or indirect common control with, such Person. The term “control” as
used  in  this  Section  1.1  means  the  possession,  direct  or  indirect,  of  the  power  to  direct  or  cause  the  direction  of  the  management  and
policies of a Person, whether through the ownership of voting securities, by contract or otherwise. Control will be presumed if one Person
owns, either of record or beneficially, more than fifty percent (50%) of the voting stock of any other Person.

1.2 “Agreement”  means  this  agreement,  together  with  all  appendices,  exhibits  and  schedules  hereto,  and  as  the  same  may  be
amended or supplemented from time to time hereafter by a written agreement duly executed by authorized representatives of each Party
hereto.

1.3  “Applicable  Laws”  shall  mean  the  applicable  laws  of  any  jurisdiction  which  are  applicable  to  any  of  the  Parties  or  their
respective Affiliates  in  carrying  out  activities  hereunder  or  to  which  any  of  the  Parties  or  their  respective Affiliates  in  carrying  out  the
activities  hereunder  is  subject,  and  shall  include  all  statutes,  enactments,  acts  of  legislature,  laws,  ordinances,  rules,  regulations,
notifications, guidelines, policies, directions, directives and orders of any statutory authority, tribunal, board, or court or any central or state
government or local authority or other governmental entity in such jurisdictions.

1.4 “Approval” shall mean all approvals from the relevant Regulatory Authority in a given country necessary to market and sell a
pharmaceutical product in such country, including pricing and reimbursement approvals if required for marketing or sale of such product in
such country.

1.5 “Approval Date” shall mean the date on which an Approval is granted by a relevant Regulatory Authority for the Product.

 -2-

 
 
 
 
 
 
 
 
 
 
 
1.6 “Award” shall mean the total amount of funding CFF provides to Corbus pursuant to this Agreement, provided that the Award

shall not exceed Twenty-Five Million Dollars ($25 million).

1.7 “Budget” shall mean the total amount of monies estimated and agreed to by the Parties for the costs and expenses of the Phase
2 Clinical Trial as set forth in the Development Plan as shown on Exhibit B, which (a) may be amended from time to time solely upon the
mutual written agreement of the Parties, and (b) shall detail the projected allocation and use of: the funds to be paid by CFF to Corbus with
respect of the Award.

1.8 “CFF” shall have the meaning set forth in the preamble of this Agreement.

1.9 “CFF Designees” shall have the meaning set forth in Section 2.4.1.

1.10 “CFF Indemnitee” shall have the meaning set forth in Section 7.1.

1.11 “CFF Patents” shall mean any Patents Controlled by CFF or its Affiliates relating to the Phase 2 Clinical Trial and directed

to a CFF Sole Invention which CFF Patents are set forth on Exhibit C.

1.12 “CFF Sole Invention” shall have the meaning set forth in Section 8.1.

1.13 “Change of Control” shall mean the consummation of a transaction, whether in a single transaction or in a series of related
and substantially contemporaneous transactions, constituting (i) a merger, share exchange or other reorganization, (ii) the sale by one or
more  stockholders  of  a  majority  of  the  voting  power  of  Corbus,  or  (iii)  a  sale  of  all  or  substantially  all  of  the  assets  of  Corbus  (or  that
portion  of  its  assets  related  to  the  subject  matter  of  this Agreement),  in  which  the  stockholders  of  Corbus  immediately  prior  to  such
transaction do not own a majority of the voting power of the acquiring, surviving or successor entity, as the case may be, provided that a
Change  of  Control  shall  not  include  a  bona  fide  financing  transaction  for  the  benefit  of  Corbus  (i.e.  in  which  Corbus  raises  capital  for
general working or business purposes) in which voting control of Corbus transfers to one or more persons who acquire shares of Corbus
and the existing Corbus shareholders receive no consideration directly or indirectly in connection with the transaction.

 -3-

 
 
 
 
 
 
 
 
 
 
 
 
1.14  “Commercially  Reasonable  Efforts”  shall  mean  the  level  of  effort,  expertise  and  resources  that  is  substantially  and
materially  consistent  with  industry  standards  for  companies  of  similar  size  and  financial  resources  to  develop  and  commercialize  the
Product, provided such effort is technically and commercially feasible, devoting the degree of attention and diligence to such efforts that
are substantially and materially consistent with industry standards for a product at a comparable stage of development with similar market
potential, and taking into account, with limitation issues of safety and efficacy, proprietary position, the regulatory environment, and other
relevant scientific and commercial factors for companies of similar size and financial resources.

1.15 “Confidential Information” shall have the meaning set forth in Section 5.1.1.

1.16 “Controlled” (except in the context of Section 1.1) shall mean the legal authority or right of a Party hereto to grant a license

or sublicense of intellectual property rights to another party, without breaching the terms of any agreement with a Third Party.

1.17 “Corbus Designees” shall have the meaning set forth in Section 2.4.1.

1.18  “Corbus  Patents”  shall  mean  any  Patents  Controlled  by  Corbus  or  its  Affiliates  claiming  Corbus  Development  Plan

Technology and directed to a Corbus Sole Invention.

1.19 “Corbus Sole Invention” shall have the meaning set forth in Section 8.1.

1.20 “Cystic Fibrosis” or “CF” shall mean any one and/or all of the human diseases commonly known as cystic fibrosis.

1.21 “Default” shall have the meaning set forth in Section 9.2.

1.22 “Development Plan” shall mean the Development Plan attached hereto in Exhibit A, which shall cover the work performed

under the Agreement until the Development Plan Completion Date.

 -4-

 
 
 
 
 
 
 
 
 
 
 
 
 
1.23  “Development  Plan  Technology”  shall  mean  all  intellectual  property,  data,  technical  information,  know-how,  inventions
(whether  or  not  patented),  trade  secrets,  laboratory  notebooks,  processes  and  methods  at  any  time  discovered  or  developed  in  the
performance of the Development Plan under this Agreement.

1.24  “Development  Plan  Completion  Date”  shall  mean  the  date  on  which  the  last  milestone  specified  in  Exhibit  B  has  been

completed.

1.25 “Discloser” shall have the meaning set forth in Section 5.1.2.

1.26 “Disposition Royalty” shall have the meaning set forth in Section 4.2.3.

1.27 “Disposition Transaction” shall have the meaning set forth in Section 4.2.3.

1.28 “Dispute” shall have the meaning set forth in Section 11.2.1.

1.29 “Dollars” shall have the meaning set forth in Section 3.1.1.

1.30 “Effective Date” shall mean the date set forth in the first paragraph of this Agreement.

1.31 “FDA” shall mean the United States Food and Drug Administration, or any successor agency having regulatory jurisdiction

over the manufacture, distribution and sale of drugs in the United States, and its territories and possessions.

1.32 “Field”  shall  mean  the  use  of  the  Product  for  the  treatment  or  prevention  of  Cystic  Fibrosis,  asbestosis,  bronchiectasis,

byssinosis, chronic bronchitis/COPD hypersensitivity pneumonitis, pneumoconiosis, primary ciliary dyskinesia, sarcoidosis and silicosis.

1.33 “First Commercial Sale” shall mean the first sale of a Product by Corbus or an Affiliate, licensee, sublicensee, transferee or
successor  of  Corbus  in  a  country  in  the  Territory  following Approval  of  the  Product  in  that  country  or,  if  no  such Approval  or  similar
marketing approval is required, the date upon which a Product is first commercially sold in that country in an arms-length transaction. For
clarity, the supply of a Product as part of a compassionate use or sampling program shall not constitute a First Commercial Sale.

 -5-

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1.34 “GAAP” shall mean generally accepted accounting principles consistently applied.

1.35 “IND” shall mean the investigational new drug application filed with respect to a Product with the FDA pursuant to Part 312

of Title 21 of the U.S. Code of Federal Regulations, including any amendments thereto.

1.36 “Interest” shall mean the Prime Rate plus five (5) percentage points.

1.37 “Joint Invention” shall have the meaning set forth in Section 8.1.

1.38 “Joint Patents” shall mean any Patents Controlled by Corbus and CFF or their respective Affiliates claiming Development

Plan Technology and directed to a Joint Invention.

1.39 “Losses” shall have the meaning set forth in Section 7.1.

1.40  “Major  Market” shall  mean  Canada,  Israel,  any  member  country  of  the  European  Union,  and  the  United  Kingdom  (if  it

ceases to be a member of the European Union).

1.41 “Net Sales” shall mean the gross amounts invoiced for sales or other dispositions of the Product to Third Parties (excluding,
for the avoidance of doubt, any sales to Related Parties for resale), less the following deductions actually incurred, allowed, paid, accrued
or otherwise specifically allocated to sales of Product in the Field and for Non-Field Indications (as applicable) less: (a) customary trade
discounts, including trade, cash and quantity discounts or rebates credits or refunds, actually allowed or taken; (b) credits or allowances
actually granted or made for rejection of or return of previously sold Products in the Field or Non-Field Products (as applicable), including
recalls, or for retroactive price reductions and billing errors or for stocking allowances; (c) governmental and other rebates (or credits or
other  equivalents  thereof)  actually  granted  to  managed  health  care  organizations,  commercial  insurance  companies,  pharmacy  benefit
managers (or equivalents thereof), distributors, national, state/provincial, local, and other governments, their agencies and purchasers, and
reimbursers, or to trade customers; (d) reasonable fees paid to wholesalers, distributors, selling agents (excluding sales representatives of
the  Selling  Party),  group  purchasing  organizations,  Third  Party  payors,  other  contractees  and  managed  care  entities,  in  each  case  with
respect  to  the  Product  in  the  Field  or  Non-Field  Indications  (as  applicable);  (e)  charges  separately  invoiced  for  freight,  insurance,
transportation, postage and handling; (f) taxes, custom duties or other governmental charges (including any tax such as a value added or
similar tax or government charge but excluding what is commonly known as income tax) levied on or measured by the billing amount for
Products in the Field or Non-Field Indications (as applicable), as adjusted for rebates and refunds; (g) bad debts or provision for bad debts
deductions actually written off during the applicable accounting period; and (h) any other specifically identifiable amounts included in the
Product’s  gross  invoice  price  that  should  be  credited  for  reasons  substantially  equivalent  to  those  listed  above;  all  as  determined  in
accordance with the selling Party’s usual and customary accounting methods, which are in accordance with GAAP. In no event shall any
particular amount identified above be deducted more than once in calculating Net Sales (i.e., no “double counting” of deductions).

 -6-

 
 
 
 
 
 
 
 
 
 
 
 
In the case of any sale or other disposal for value, such as barter or counter-trade, of any Product, or part thereof, other than in an

arm’s length transaction exclusively for money, Net Sales shall be calculated as above on the value of the consideration received.

1.42 “Non-Field Product” shall mean any pharmaceutical composition or preparation (in any and all dosage forms) in final form
containing  Lenabasum  or  any  derivative  thereof  that  is  approved  or  being  developed  for  a  Non-Field  Indication.  For  clarity,  different
formulations  or  dosage  strengths  of  a  given  Non-Field  Product  shall  be  considered  the  same  Non-Field  Product  for  purposes  of  this
Agreement. In addition, the Parties acknowledge that the same product may be both a Product for use in the Field and a Non-Field Product
(i.e., where such product has more than one indication such that it is for use in the Field and for Non-Field Indications).

 -7-

 
 
 
 
 
 
1.43 “Non-Field Indication” shall mean the treatment or prevention of any disease in humans other than those in the Field.

1.44 “Non-Publishing Party” shall have the meaning set forth in Section 6.

1.45 “Party(ies)” shall have the meaning set forth in the preamble of this Agreement.

1.46  “Patents”  means  all  existing  patents  and  patent  applications  and  all  patent  applications  hereafter  filed,  including  any
continuation, continuation-in-part, division, provisional, priority, or any substitute applications, any patent issued with respect to any such
patent  applications,  any  reissue,  reexamination,  renewal  or  extension  (including  any  supplementary  protection  certificate)  of  any  such
patent, and any confirmation patent or registration patent or patent of addition based on any such patent, and all foreign counterparts of any
of the foregoing.

1.47  “Person”  means  any  individual,  corporation,  partnership,  association,  joint-stock  company,  trust,  unincorporated

organization or government or political subdivision thereof.

1.48 “Phase  2  Clinical  Trial”  shall  mean  a  multicenter,  randomized,  double  blind,  placebo-controlled  Phase  2  clinical  trial  to
evaluate the efficacy and safety of Lenabasum in the treatment of cystic fibrosis which shall be conducted pursuant to the Development
Plan.

1.49 “Prime Rate” shall mean the average prime rate published in the Wall Street Journal during the relevant period (calculated
by dividing (a) the sum of the prime rates for each of the days during the relevant period, by (b) the number of days in the relevant period).

1.50 “Prior Agreement” shall mean the agreement of April 9, 2015 entered into by the Parties.

1.51 “Product” means Lenabasum in any form, dosage or preparation in finished form, and any derivative thereof.

 -8-

 
 
 
 
 
 
 
 
 
 
 
 
 
1.52 “Project Advisory Group” or “PAG” shall have the meaning set forth in Section 2.4.1.

1.53 “Publishing Party” shall have the meaning set forth in Article VI.

1.54 “Recipient” shall have the meaning set forth in Section 5.1.2.

1.55 “Recipient Notice Requirement” shall have the meaning set forth in Section 5.1.3.

1.56 “Regulatory Authority” shall mean any country, federal, supranational, state or local regulatory agency, department, bureau
or  other  governmental  or  regulatory  authority  having  the  administrative  authority  to  regulate  the  development  or  marketing  of
pharmaceutical products in any country or other jurisdiction.

1.57 “Results” shall have the meaning set forth in Article VI.

1.58 “Securities Regulatory Authority” shall have the meaning set forth in Section 5.1.3.

1.59 “Share Election” shall have the meaning set forth in Section 4.2.1.

1.60 “Territory” shall mean worldwide.

1.61 “Third Party” shall mean any Person which is not a Party or an Affiliate of any Party to this Agreement.

1.62 “Trading Day” shall mean any day in which the stock exchange on which Corbus shares are regularly traded is open.

 -9-

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ARTICLE II – DEVELOPMENT PLAN

2.1 Commencement; Objective. The objective of the Phase 2 Clinical Trial will be to establish clinical proof of principal and to
obtain sufficient information of the Product’s safety and efficacy in the Field to permit the design of further clinical studies and that would
satisfy the requirements of 21 CFR 312.21(b). Corbus shall be solely responsible for the conduct of the Phase 2 Clinical Trial as set forth in
the Development Plan. CFF shall provide the financial support hereinafter specified, consultation and advice as provided herein through its
participation on the PAG as provided below.

2.2 Duration of the Development Plan. The Development Plan shall commence on the Effective Date and shall conclude on the
Development Plan Completion Date, unless extended by mutual agreement of the Parties, or unless earlier terminated in accordance with
the provisions of Article IX hereof.

2.3 Development Diligence.

2.3.1 Generally. Corbus shall use Commercially Reasonable Efforts to conduct the Phase 2 Clinical Trial pursuant to the
Development Plan. In furtherance of the foregoing, and in accordance with the terms and conditions of this Agreement (including, without
limitation,  Section  2.3.2  below),  Corbus  shall  commit  (i)  the  level  of  staffing  required  by  the  Development  Plan,  with  such  staff  that
possess  the  necessary  experience,  training  and  scientific  expertise  in  order  for  Corbus  to  fulfill  its  obligations  hereunder,  and  (ii)  the
infrastructure (e.g., laboratories, offices, equipment and facilities) required by the Development Plan.

2.3.2 Obligations of Corbus. Subject to the terms and conditions of this Agreement, and without limiting the generality of
Section 2.3.1 above, Corbus shall be solely responsible for the sponsorship, conduct and oversight of the Phase 2 Clinical Trial as set forth
in  the  Development  Plan,  which  such  responsibilities  shall  include,  without  limitation,  utilizing  Commercially  Reasonable  Efforts  to
perform  its  obligations  hereunder  and  complete  the  Phase  2  Clinical  Trial  in  a  timely  fashion  so  as  to  enable  the  possibility  of  further
development and commercialization of the Product in the Field in accordance with Section 4.1; and responding to all reasonable requests
and inquiries of CFF for information in possession of Corbus regarding any of the subject matter hereof.

 -10-

 
 
 
 
 
 
 
 
 
 
2.4 Project Advisory Group.

2.4.1 Composition and Purposes. During the term of the Development Plan, a Program Advisory Group (“ PAG”)  shall
facilitate communication between the Parties, and make recommendations, with respect to the Development Plan. The PAG shall consist of
four (4) members, two (2) of whom shall be designated by Corbus (the “Corbus Designees”), and two (2) of whom shall be designated by
CFF (the “CFF Designees”). Each Party (i) shall select a Program Coordinator from among its designees to the PAG (who may be changed
at any time or from time to time by such Party), and (ii) may change any of its designees to the PAG at any time or from time to time. The
Program Coordinator of Corbus shall serve as the Chairperson of the PAG.

Without limiting the generality of the foregoing, the PAG shall:

(a)  consider,  review,  reevaluate  and  discuss  the  Development  Plan,  evaluate  any  proposed  revisions  or
modifications by either Party to the Development Plan, and give its recommendations regarding any proposed amendments to the
Development Plan;

next steps to implement the Development Plan; and

(b)  monitor  the  progress  of  the  Development  Plan,  and  make  recommendations  to  Corbus’s  team  as  needed  on

(c) determine that the Award has been used as set forth in the Development Plan.

The PAG shall terminate on the First Commercial Sale of a Product in the Field or in the event Corbus determines to discontinue

development of the Product for use in the Field.

 -11-

 
 
 
 
 
 
 
 
 
 
 
2.4.2 Meetings. The PAG shall meet no less frequently than once in each three (3) month period;  provided, however, that
the PAG may meet more or less frequently upon mutual agreement of the Program Coordinators. The first meeting of the PAG shall be
held  within  ninety  (90)  days  of  the  Effective  Date.  Meetings  of  the  PAG  shall  be  held  at  such  times  and  locations  as  may  be  mutually
agreed by the Program Coordinators, which times and locations shall be communicated in writing (including, without limitation, by email)
to  the  other  members  of  the  PAG  with  reasonable  advance  notice  of  the  meeting. At  least  one  (1)  Corbus  Designee  and  one  (1)  CFF
Designee shall be required to participate in a meeting for such meeting to be deemed a quorum. So long as a quorum is present at a meeting,
the PAG may make, or decide to make, recommendations to Corbus, or take, or decide to take, such actions as are within the scope of the
PAG’s  authority  hereunder.  Members  of  the  PAG  may  attend  each  meeting  either  in  person  or  by  means  of  telephone  or  other
telecommunications device that allows all participants to hear and speak at such meeting simultaneously. At least ten (10) business days
prior to each meeting, Corbus shall deliver (including by email) to CFF a written report detailing the progress made on the Development
Plan since the last meeting of the PAG. Within twenty (20) days after the date of each meeting, the Corbus Designees shall prepare and
deliver  (including  by  email)  to  the  CFF  Designees  written  minutes  of  such  meeting  setting  forth  in  detail  all  discussions  and/or
recommendations  of  the  PAG  made  at  such  meeting,  which  such  minutes  shall  be  subject  to  the  prior  approval  of  CFF’s  Program
Coordinator.

2.4.3 Discussions/Recommendations. As  a  general  matter,  and  except  as  otherwise  provided  for  herein,  the  PAG  shall
discuss the items set forth in Section 2.4.1, make unanimous, non-binding recommendations to Corbus as a result of such discussions, and
facilitate communication between the Parties with respect to the Development Plan.

with its participation on the PAG.

2.4.4 Expenses.  Each  Party  shall  pay  its  own  expenses  (including  travel  and  lodging  expenses)  incurred  in  connection

2.5 Delivery of Information to the PAG. Corbus shall deliver to each PAG member such information and other data as soon as
practicable following its availability as is necessary to facilitate mutual understanding of the status of, and developments relating to, the
Development Plan.

 -12-

 
 
 
 
 
 
 
 
ARTICLE III – AWARD PAYMENTS; RECORDS

3.1.1 Award Grant and Payments. In accordance with the terms, and subject to the conditions, set forth in this Agreement,
CFF hereby grants the Award to Corbus and Corbus accepts such Award. Corbus shall send invoices in United States Dollars (“Dollars”) to
CFF for payment of the Award in accordance with the milestones set forth in  Exhibit B. CFF shall pay amounts invoiced by Corbus within
[*] days of the receipt of the invoice for amounts expended in accordance with the Budget and milestone schedule. Except as expressly
provided in Sections 4.2.1 (a) and (b), all payments to be made hereunder (including, without limitation, pursuant to Article IV) shall be
made in Dollars and, at the option and direction of the receiving party, shall be made by cashier’s or certified check or by wire transfer of
immediately available funds.

required to make any payment or additional payment in respect of the Award:

3.1.2 Limitations.  Notwithstanding  Section  3.1.1  above  or  any  contrary  provision  contained  herein,  CFF  shall  not  be

(a) To the extent amounts paid hereunder would exceed of Twenty-Five Million Dollars ($25 million);

(b) unless at the time such payment is due, the Development Plan is in material compliance with all Applicable

Laws;

(c)  upon  the  occurrence  and/or  during  the  continuance  of  any  uncured  default  and/or  any  material  breach  by
Corbus  of  any  of  its  covenants  or  obligations  under  this Agreement  (including,  without  limitation,  Corbus’s  obligations  under
Sections 3.1.3 and 3.1.4 below);

 -13-

 
 
 
 
 
 
 
 
 
 
(d) if a case or proceeding (i) under the bankruptcy laws of the United States, or relevant non-U.S. law, now or
hereafter  in  effect  is  filed  against  Corbus  or  all  or  substantially  all  of  its  assets  and  such  petition  or  application  is  not  dismissed
within sixty (60) days after the date of its filing or Corbus shall file any answer admitting and not contesting such petition, or (ii)
under  the  bankruptcy  laws  of  the  United  States,  or  relevant  non-U.S.  law,  now  or  hereafter  in  effect  or  under  any  insolvency,
reorganization, receivership, dissolution or liquidation law or statute of any jurisdiction now or hereafter in effect (whether at law or
equity) is filed by Corbus for all or substantially all of its assets; and/or

(e) if this Agreement is terminated by either Party in accordance with Article IX.

3.1.3 Budget. Corbus hereby covenants and agrees to use the Award funds provided by CFF to Corbus hereunder to fund
the Phase 2 Clinical Trial in accordance with the Budget (including, without limitation, making applicable payments to subcontractors and
vendors) and Development.

3.1.4 Competition. Corbus hereby agrees and acknowledges that nothing contained herein shall restrict or prevent CFF’s
ability to provide funding to, or take any other action with respect to, any Person that competes with a Product, the business, operations,
and/or  Development  Plan  of  Corbus;  and  Corbus  hereby  waives  any  claim  against  CFF  with  respect  to  any  such  competing  activities;
provided,  however,  that  CFF  shall  use  Corbus  Confidential  Information  only  in  accordance  with  the  provisions  of  this Agreement,  and
Corbus does not waive any claims relating to use or misuse of Corbus Confidential Information not in accordance with this Agreement.

 -14-

 
 
 
 
 
 
 
 
3.2 Records; Reporting Obligations; Audits.

3.2.1 Records.  Corbus  shall  prepare  and  maintain  complete  and  accurate  books  and  records  in  connection  with  the
Development  Plan  in  accordance  with  GAAP  (including  financial  records  of  expenditures  under  the Award)  and  the  development  and
commercialization  of  any  Product,  and  shall  keep  all  such  books  and  records  in  a  manner  that  is  consistent  with  its  document  retention
policy. CFF shall have the right to inspect such books and records at the offices of Corbus during normal business hours.

3.2.2 Response  to  Inquiries.  Corbus  personnel  (including,  without  limitation,  licensees,  sublicensees,  transferees,
successors and subcontractors) shall be available to discuss (whether in person or via telephone) with CFF the books and records and/or
reports delivered by Corbus to CFF at such time or times as CFF may reasonably request.

3.2.3 Audit. At the request of CFF, from time to time prior to the first anniversary of the Development Plan Completion
Date, Corbus shall permit agents of an independent, certified public accounting firm appointed by CFF, upon reasonable notice, but not
more  often  than  once  a  year,  to  audit  and  examine  such  books  and  records  of  Corbus  as  may  be  necessary  for  verifying  Corbus’s
compliance with the terms and conditions hereunder. Any and all records audited and examined by agents of such accounting firm shall be
deemed  Corbus’s  Confidential  Information.  CFF  shall  pay  the  costs  of  such  audit  and  examination  of  the  books  and  records  of  Corbus,
provided, however, that, if such audit and examination reveal a material breach of this Agreement or a material discrepancy with respect to
other  information  previously  provided  by  Corbus  to  CFF,  then  the  costs  of  such  audit  and  examination  shall  be  borne  by  Corbus  and
Corbus shall reimburse CFF for all of the costs and expenses incurred by CFF in connection with such audit and examination.

 -15-

 
 
 
 
 
 
 
 
3.2.4 Reports; Notices. Corbus shall furnish to CFF the following reports and/or notices:

(a) As soon as practicable, and in any event within sixty (60) days after the end of each calendar quarter (including
the  calendar  quarter  ending  December  31),  financial  reports  which  describe  the  use  of  the  Award  funds  (including,  without
limitation, a detailed breakdown of the actual costs of the Development Plan and how such Award funds have been allocated and in
fact used in respect of the Development Plan), the progress made toward achieving the purposes of the Development Plan, and the
development of any Product, and any other information in possession of Corbus that CFF reasonably requests.

(b)  As  soon  as  practicable  after  the  Development  Plan  Completion  Date,  a  closing  report  customary  for  a
Development Plan at such stage of development which shall (i) be prepared by Corbus or a Corbus-approved Third Party, (ii) be
reasonably satisfactory to CFF, and (iii) set forth Corbus’s final analysis, summary tables, data listings, results and conclusions from
the Development Plan and such other information and materials as CFF may reasonably request.

(c) As soon as practicable, and in any event within sixty (60) days after January 1 and June 1 of each fiscal year
following  the  Development  Plan  Completion  Date,  progress  reports  and  status  updates  on  Corbus’s  activities  with  respect  to  the
Development  Plan  Technology  and/or  a  Product  including,  without  limitation,  the  development  and/or  commercialization  of  any
Products, Corbus’s compliance with the terms of this Agreement, and any other information that CFF reasonably requests. Corbus
shall  include  the  requirements  of  this  Section  3.2.4(c)  in  any  agreements  with  sublicensees  relating  to  the  development  and/or
commercialization of any Products.

 -16-

 
 
 
 
 
 
 
 
ARTICLE IV – COMMERCIALIZATION; ROYALTIES

4.1 Development and Commercialization of a Product

4.1.1 Development and Commercialization of a Product. Corbus shall use Commercially Reasonable Efforts to develop
and commercialize the Product in the United States and in one of the other Major Markets; provided however that nothing contained herein
shall require Corbus to initiate any other clinical trials (other than the Phase 2 Clinical Trial described herein) for the Product in the Field.

have the exclusive rights to develop, commercialize, market, sell and distribute any or all Products throughout the Territory.

4.1.2 Commercialization of Product. Corbus and/or its Affiliates, licensees, sublicensees, transferees and successors shall

4.2 Royalties. Corbus shall make the following payments to CFF:

Approvals:

4.2.1 Approval  Royalties.  Corbus  shall  make  the  following  royalty  payments  to  CFF  in  the  event  of  the  following

Corbus to CFF within sixty (60) days of the first Approval of the Product in the United States; and

(a) A royalty payment equal to one and one-half (1.5) times the amount of the Award, such royalty to be paid by

Corbus to CFF within sixty (60) days of the first Approval of the Product in a Major Market.

(b) A royalty payment equal to one and one-half (1.5) times the amount of the Award such royalty to be paid by

 -17-

 
 
 
 
 
 
 
 
 
 
 
 
The first milestone payment due under Section 4.2.1(a) or (b), as the case may be, may be made in cash or, at Corbus’s election,
made by notice to CFF within ten (10) days after such Approval, in Corbus shares (the “Share Election”), provided, however, that the Share
Election shall no longer be applicable after a Change of Control. If Corbus makes the Share Election: (i) such payment shall be made to the
extent available in registered Corbus common shares that can be sold by CFF on the stock exchange on which Corbus is customarily traded
immediately following such transfer of shares to CFF or (ii) if such registered shares are not available, Corbus shall register such shares
within sixty (60) days of the Share Election. The Corbus shares transferred to CFF as a result of the Share Election shall be determined in
accordance with the following sentence to be of equal value to the cash payment otherwise due. If Corbus makes the Share Election, the
number of shares transferred to CFF shall be determined by (A) dividing an amount equal to 1.5 times the Award by (B) the average share
price of Corbus shares determined by adding the closing prices of Corbus shares on each of the five (5) Trading Days prior to the relevant
Approval plus the closing prices of Corbus shares on the Approval date and each of the four (4) Trading Days thereafter, and dividing such
sum by ten 10; provided that, if the Approval date is not a Trading Day, the fifth (5th) Trading Day after the Approval date shall be used for
purposes of the foregoing calculation; and further provided, if Corbus must register the Shares after the Share Election, and if the shares on
the effective date of their registration have a lower market value on the date such shares are registered than the average price calculated in
accordance with (B) above, Corbus shall transfer such additional registered shares to CFF on the effective date of such registration as are
necessary to provide CFF with a payment equal to such average.

4.2.2 Royalty on Net Sales. Corbus shall pay to CFF:

days after any quarter in which such Net Sales occur; and

(a) A royalty equal to two and one-half percent (2.5%) of Net Sales of the Product in the Field within sixty (60)

quarter in which such Net Sales occur.

(b) A royalty equal to one percent (1.0%) of the Net Sales of Non-Field Products within sixty (60) days after any

 -18-

 
 
 
 
 
 
 
 
4.2.3 Disposition Payment. A royalty equal to ten percent (10%) of any amount Corbus and its shareholders receive in
connection with the license, sale, or other transfer to a Third Party of the Product and/or Development Plan Technology (a “Disposition
Royalty”) and a Change of Control (collectively, a “Disposition Transaction”), whether such amounts are received by Corbus upfront, in
subsequent milestone payments, or other payment prior to the First Commercial Sale, provided, however, that the Disposition Royalty shall
not exceed five (5) times the amount of the Award, and shall be credited against the royalties on Net Sales otherwise due under Section
4.2.2 until the full amount of the Disposition Payment has been offset against such royalties . The Disposition Payment[s] shall be made to
CFF with sixty (60) days after Corbus receives any amount attributable to a Disposition Transaction. Corbus shall notify CFF promptly of
any Disposition Transaction.

4.3 Warrants. In addition to the royalties specified in Section 4.2, Corbus Pharmaceuticals Holdings, Inc. hereby awards to CFF
warrants  entitling  CFF  upon  exercise  to  one-million  (1,000,000)  Corbus  common  shares.  Such  warrants  shall  be  subject  to  the  terms
specified in Exhibit D to this Agreement.

4.4 Sales Reports.

4.4.1 Reports. Commencing upon Approval of a Product and ending upon the last payment of all royalties under Section
4.2.2, within sixty (60) days after the end of each quarter, Corbus shall furnish or cause to be furnished to CFF a written sales report or
reports covering the relevant period setting forth in detail the Net Sales of Product during such period divided into sales inside the Field and
for  Non-Field  Indications.  With  respect  to  sales  of  Products  invoiced  in  Dollars,  the  Net  Sales  amounts  and  the  amounts  due  to  CFF
hereunder  shall  be  expressed  in  Dollars.  With  respect  to  sales  of  Products  invoiced  in  a  currency  other  than  Dollars,  the  Net  Sales  and
amounts due to CFF hereunder shall be expressed in the domestic currency of the party making the sale, together with the Dollar equivalent
of  the  amount  payable  to  CFF,  calculated  by  translating  foreign  currency  sales  into  Dollars  in  accordance  with  Corbus’s  accounting
policies.  If  any  licensee  or  sublicensee  makes  any  sales  invoiced  in  a  currency  other  than  its  domestic  currency,  the  Net  Sales  shall  be
converted  to  its  domestic  currency  in  accordance  with  the  licensee’s  or  sublicensee’s  normal  accounting  principles.  Corbus  shall  keep
accurate records in sufficient detail to enable the amounts due hereunder to be determined and to be verified by CFF.

 -19-

 
 
 
 
 
 
 
 
4.4.2 Independent Accountant.  Upon  the  written  request  of  CFF,  at  CFF’s  expense  and  not  more  than  one  time  in  the
twelve  (12)  month  period  following  the  receipt  by  CFF  of  the  report  required  under  Section  4.4.1,  Corbus  shall  permit  an  independent
accountant  selected  by  CFF  to  have  access  during  normal  business  hours  to  those  records  of  Corbus  as  may  be  reasonably  necessary  to
verify  the  accuracy  of  the  report  furnished  by  Corbus  pursuant  to  this  Section  4.4.  CFF  shall  pay  the  cost  of  any  such  examination,
provided, however, that if such examination determines that actual Net Sales were five percent (5%) or greater than the amount reported by
Corbus to CFF, in addition to promptly paying CFF for any additional royalty then due, Corbus shall reimburse CFF for its reasonable and
documented expenses associated with such examination.

4.4.3 Interest. In case of any delay in payment by Corbus to CFF not occasioned by force majeure in accordance with
Section 11.4, Interest shall be calculated from the tenth (10th) day after the date upon which the applicable payment first becomes due from
Corbus.

4.5 Transferee Liability .  In  the  event  of  a  license,  sale  or  other  transfer  of  the  Product  and/or  Development  Plan  Technology,
Corbus shall cause the licensee, buyer or other transferee to agree to be jointly and severally liable with Corbus for the royalties specified in
Section 4.1 and 4.2, and failing that, such license, sale or other transfer shall be null and void.

 -20-

 
 
 
 
 
 
 
5.1 Confidentiality.

ARTICLE V – CONFIDENTIALITY

5.1.1 Definition of Confidential Information. For purposes of this Agreement, “Confidential Information” shall mean all
information Recipient received from the Discloser in connection with this Agreement, including (a) the financial terms of this Agreement
and any other terms of this Agreement that a Party believes disclosure of which would be harmful to it, and (b) any other trade secrets,
confidential or proprietary information, or any other knowledge, information, data, reports, documents or materials, owned, developed or
possessed by Discloser(as defined below) whether in tangible or intangible form, the confidentiality of which Discloser takes reasonable
measures  to  protect.  “Confidential Information”  shall  not,  however,  include  any  information  of  Discloser  that:  (a)  is  already  known  to
Recipient (as defined below) at the time of its disclosure; (b) becomes publicly known through no wrongful act of Recipient; (c) is received
from  a  Third  Party  free  to  disclose  it  to  Recipient  and  without  any  obligations  to  Discloser  to  keep  confidential;  (d)  is  independently
developed  by  Recipient  without  use  of  the  Confidential  Information;  or  (e)  is  communicated  to  a  Third  Party  without  confidentiality
requirements with express written consent of Discloser.

5.1.2 Non-Disclosure.  During  the  term  of  this  Agreement  and  for  a  period  of  five  (5)  years  thereafter,  each  Party
(“Recipient”)  shall  hold  all  Confidential  Information  it  receives  or  received  from  the  other  Party  (“Discloser”)  in  strict  confidence,  and,
other than as provided herein or without first obtaining the prior written consent of Discloser, Recipient shall not disclose any Confidential
Information of Discloser to any Person, except to directors, officers, employees, consultants, committee members, volunteers, contractors,
subcontractors,  licensees,  sublicensees,  accountants  or  counsel  of  Recipient  who  have  a  need  to  know,  who  are  subject  to  terms  of
confidentiality  that  are  no  less  stringent  than  such  confidentiality  terms  under  this  Agreement  and  who  have  been  informed  of  the
confidential nature of the information. Recipient shall use not less than a reasonable degree of care to protect such Confidential Information
of Discloser.

 -21-

 
 
 
 
 
 
 
 
5.1.3 Required Disclosure. Notwithstanding Section 5.1.2 above, Recipient’s disclosure of Confidential Information shall
not be prohibited if such disclosure is required by a legally binding requirement; provided, however, that, Recipient shall have first given
prompt notice to Discloser of any possible requirement and Discloser shall have been afforded a reasonable opportunity to prevent or limit
such  disclosure  (the  “Recipient  Notice  Requirement” ) ; provided,  further,  that  the  Recipient  Notice  Requirement  shall  not  apply  to
proceedings which, by applicable law, are of a nature that the existence of such proceedings may not be disclosed or made public in which
case Recipient shall take all legally available measures to minimize or avoid the public disclosure of Discloser Confidential Information. In
the event that Recipient discloses any Discloser Confidential Information pursuant to the immediately preceding sentence, Recipient shall
cooperate with Discloser, at Discloser’s sole cost and expense, in the prosecution of any appeal that Discloser decides to pursue. For any
disclosures  of  this Agreement  required  by  the  Securities  and  Exchange  Commission  or  other  body  regulating  Corbus’s  or  its Affiliates’
securities (“Securities Regulatory Authority”),  Corbus  shall  exercise  good  faith  efforts  to  give  confidential  treatment  of  the  information
described in Section 5.1.1, and Corbus shall provide CFF with contemporaneous copies of the requests for confidential treatment filed with
such Securities Regulatory Authority.

or without first obtaining Discloser’s prior written consent, Recipient shall not use any of Discloser’s Confidential Information.

5.1.4 No Use of Confidential Information. Recipient hereby agrees and acknowledges that, other than as provided herein

 -22-

 
 
 
 
 
 
5.2 Publicity; Use of Name.

public announcement relating to this Agreement and the transactions contemplated herein.

5.2.1 Mutual Agreement. The Parties shall mutually agree upon the timing and content of any initial press release or other

5.2.2 Prior  Written  Consent.  Except  to  the  extent  already  disclosed  in  the  initial  press  release  or  other  public
announcement  referenced  in  Section  5.2.1  above,  and  except  as  may  be  otherwise  provided  herein,  neither  Party  shall  issue  any  press
release or make any public announcement concerning the terms of this Agreement or the transactions described herein without the prior
written consent of the other Party, which such consent shall not be unreasonably withheld, conditioned or delayed; provided, however, that
it shall not be unreasonable for any Party to withhold consent with respect to any press release or public announcement containing any of
such  Party’s  Confidential  Information;  and,  provided, further,  that  this  Section  5.2.2  shall  not  preclude  any  Party  from  issuing  any  such
press  release  or  making  any  such  public  announcement  if  such  Party  reasonably  believes  that  any  such  release  or  announcement  is  (a)
legally required by Applicable Laws, or (b) required by the rules of any stock exchange on which such Party’s (or such Party’s Affiliates’)
securities are listed.

5.2.3 Advanced  Written  Copy.  In  each  instance,  the  Party  desiring  to  issue  any  press  release  or  to  make  any  public
announcement shall provide the other Party with a written copy of the proposed release or announcement in sufficient time prior to public
release to allow such other Party to comment upon such release or announcement prior to its public release. In addition, each press release
and/or  public  announcement  issued  or  made  pursuant  to  this  Section  5.2  shall  include  CFF-approved  language  acknowledging  CFF’s
funding of the Development Plan.

5.2.4 Trademark and Logos. Except as may be otherwise provided herein, neither Party shall have any right, express or
implied, to use in any manner the name or other designation of the other Party or any other trade name, trademark or logos of the other
Party for any purpose.

 -23-

 
 
 
 
 
 
 
 
 
5.2.5 Permitted  Use  of  Name  and  Logo.  Notwithstanding  the  foregoing  or  any  contrary  provision  contained  herein,  in
connection  with:  (a)  any  description  by  CFF  of  its  portfolio  and  of  its  industry  discovery  and  Development  Plan,  and/or  (b)  CFF’s
fundraising activities, marketing materials and/or reporting requirements, CFF shall be entitled to use and/or disclose, and Corbus hereby
pre-approves CFF’s use and/or disclosure of: (i) the mark “Corbus,” Corbus’s logo and a general description of Corbus, (ii) the existence
and a general description of the nature of this Agreement (excluding financial terms), and (iii) a general description of the nature of the
Development  Plan  consistent  with  the  confidentiality  terms  herein; provided,  however,  CFF  shall  properly  use  any  and  all  Corbus
trademarks in a manner so as to not diminish its goodwill. Notwithstanding the foregoing or any contrary provision contained herein, in
connection with: any description by Corbus or its Affiliates of its portfolio and of its industry discovery and Development Plan, Corbus
shall be entitled to use and/or disclose, and CFF hereby pre-approves Corbus’s use and/or disclosure of: (i) a general description of CFF, (ii)
the existence and a general description of the nature of this Agreement (excluding financial terms), and (iii) a general description of the
nature of the Development Plan consistent with the confidentiality terms herein.

ARTICLE VI – PUBLICATION

The Parties shall publish the Results of the Phase 2 Clinical Trial at the earliest opportunity that is consistent with the protection
of  the  confidentiality  of  Development  Plan  Technology.  Corbus  reserves  the  first  right  to  publish  or  publicly  present  the  data  generated
during the performance of, or as a result of, the Development Plan (the “Results”), subject to the following terms and conditions. To the
extent Corbus decides not to publish or publicly present the Results, Corbus shall in its sole discretion allow CFF to publish or publicly
present such Results in accordance with this Article VI, and such consent will be binding if, and only if, provided in writing in accordance
with the notice provisions contained herein. The Party proposing to publish or publicly present the Results (the “Publishing Party”)  will
submit a draft of any proposed manuscript, speech, poster or other disclosure to the other Party (the “Non-Publishing Party”) for comments
at least sixty (60) days prior to submission for publication or oral presentation. The Non-Publishing Party shall notify the Publishing Party
in  writing  within  thirty  (30)  days  of  receipt  of  such  draft  with  its  comments,  which  shall  be  reasonably  incorporated  by  the  Publishing
Party.  The  comments  of  the  Non-Publishing  Party  shall  include  but  not  be  limited  to  whether  such  draft  contains  (a)  information  of  the
Non-Publishing Party which it considers to be Confidential Information under the provisions of Article V hereof, (b) information that if
published would have an adverse effect on a Patent which the Non-Publishing Party intends to file or has filed, or (c) information, including
but not limited to chemical structures of a Product, which the Non-Publishing Party reasonably believes would be likely to have a material
adverse  impact  on  the  development  or  commercialization  of  a  Product.  In  any  such  notification,  the  Non-Publishing  Party  shall  indicate
with specificity its suggestions regarding the manner and degree to which the Publishing Party may disclose such information. In the case
of  item  (a)  above,  no  Party  shall  publish  the  Confidential  Information  of  the  other  Party  without  the  prior  written  consent  of  such  other
Party  in  violation  of Article  V  of  this Agreement.  In  the  case  of  item  (b)  above,  the  Non-Publishing  Party  may  request  a  delay  and  the
Publishing Party shall delay such publication, for a period not exceeding an additional ninety (90) days, to permit the timely preparation
and filing of a patent application or an application for a certificate of invention on the information involved. In the case of item (c) above, if
the  Publishing  Party  shall  disagree  with  the  Non-Publishing  Party’s  assessment  of  the  impact  of  the  publication,  then  the  issue  shall  be
referred  to  the  Program  Coordinator  of  each  Party  who  shall  attempt  in  good  faith  to  reach  a  fair  and  equitable  resolution  of  this
disagreement.  If  the  disagreement  is  not  resolved  in  this  manner  within  fourteen  (14)  days  of  referral  to  the  respective  Program
Coordinators, then the decision of publication shall be subject to the Dispute Resolution provisions at Section 11.2, subject always to the
confidentiality  provisions  of  Article  V  hereof.  The  Parties  agree  that  authorship  of  any  publication  will  be  determined  based  on  the
customary standards then being applied in the relevant scientific journal.

Corbus shall acknowledge the financial support of CFF in all Development Plan publications.

 -24-

 
 
 
 
 
 
 
 
ARTICLE VII – INDEMNIFICATION AND INSURANCE

7.1  Indemnification  by  Corbus.  Corbus  shall  indemnify,  defend  and  hold  harmless  CFF,  its  Affiliates,  and  their  respective
directors, officers, employees and agents (including, without limitation, the CFF Designees) (each, a “CFF Indemnitee”), from and against
any and all claims, suits and demands of Third Parties and losses, liabilities, damages for personal injury, property damage or otherwise,
costs, penalties, fines and expenses (including reasonable fees of attorneys) (collectively, “Losses”) arising out of or resulting from: (a) the
conduct of the Development Plan by Corbus and any breach of, or inaccuracy in, any of representations or warranties made by Corbus in
this Agreement, or any breach or violation of any covenant or agreement of Corbus in or pursuant to this Agreement; and (b) any claim of
infringement  or  misappropriation  of  intellectual  property  with  respect  to  the  Development  Plan  or  any  Product.  Corbus  will  have  no
obligation to indemnify CFF to the extent that the Losses arise out of or result from, directly or indirectly, any breach of, or inaccuracy in,
any  representation  or  warranty  made  by  CFF  in  this Agreement,  or  any  breach  or  violation  of  any  covenant  or  agreement  of  CFF  in  or
pursuant to this Agreement, or the negligence or willful misconduct by or of any of the CFF Indemnitees.

7.2 Claims Procedures. Each CFF Indemnitee shall give notice Corbus promptly after receipt by a CFF Indemnitee of notice of
the commencement of any action, suit or proceeding. Subject to Section 7.3, Corbus shall have the right to assume and manage the defense
thereof (with counsel reasonably satisfactory to the CFF Indemnitee), including the right to settle, compromise and/or litigate with respect
to any such claim (but only after obtaining Corbus’s prior written consent with respect to any proposed settlement, compromise or litigation;
provided, however, that Corbus shall not be required to obtain the CFF Indemnitee’s prior written consent in connection with any proposed
settlement, compromise or litigation if, in connection with and following any such settlement, compromise or litigation, the CFF Indemnitee
(a) has no liability (monetary or otherwise), (b) has not waived any of its rights and has not admitted to any wrongdoing or guilt, (c) is not
subject to any injunction or other equitable or non-monetary relief, and (d) receives a full and unconditional release of all applicable claims
and liability).

 -25-

 
 
 
 
 
 
 
7.3 Participation; Assuming Control of the Defense . Notwithstanding Section 7.2 above, CFF may participate in the defense of
any claim at its sole expense, with counsel reasonably  acceptable  to  Corbus;  provided,  however,  if  (a)  there  is  a  conflict  of  interest  that
would prevent Corbus, on the one hand, and CFF, on the other hand, from being represented by a single law firm in the defense of such
action; in each such instance, or (b) there shall be one or more additional or other defenses available to CFF that are not available to Corbus,
then in each such instance Corbus shall pay the reasonable fees and expenses of one law firm serving as counsel for CFF, which law firm
shall be subject to the prior consent of Corbus, which consent shall not be unreasonably withheld, conditioned or delayed.

7.4 Insurance. Corbus shall maintain at its own expense, with a reputable insurance carrier, coverage for Corbus, its Affiliates,
and their respective employees written on a per occurrence basis commensurate with a reasonable assessment of the risks associated with
the  conduct  of  the  Development  Plans.  Maintenance  of  such  insurance  coverage  will  not  relieve  Corbus  of  any  responsibility  under  this
agreement for damages in excess of insurance limits or otherwise. Corbus shall provide CFF with an insurance certificate from the insurers,
brokers or agents evidencing the applicable insurance coverage. At its request, CFF may review Corbus’ insurance coverages no more than
one time per year.

 -26-

 
 
 
 
 
 
7.5  Limitation  of  Liability.  Neither  Party  shall  be  liable  to  the  other  Party  for  any  special,  indirect,  incidental,  consequential,

punitive or exemplary damages, including, but not limited to, lost profits, in connection with such Party’s breach of this Agreement.

ARTICLE VIII – PATENTABLE INVENTIONS

8.1  Ownership.  All  inventions  relating  to  the  Development  Plan  invented,  conceived  or  made  and  all  data  and  know-how
generated with respect thereto exclusively by Corbus or its Affiliates (directly or through others acting on its behalf) during the term of this
Agreement (a “Corbus Sole Invention”) and all inventions relating to the Development Plan invented, conceived or made and all data and
know-how generated with respect thereto exclusively by CFF or its Affiliates (directly or through others acting on its behalf) during the
term of this Agreement (a “CFF Sole Invention”) shall be solely owned by the Party conceiving or making the invention or generating the
data  or  know-how  claimed. All  inventions  relating  to  the  Development  Plan  invented,  conceived  or  made  and  all  data  and  know-how
generated with respect thereto by both Parties or their respective Affiliates (directly or through others acting on its behalf) during the term
of this Agreement (a “Joint Invention”) shall be jointly owned by the CFF and Corbus. Inventorship shall be determined in accordance with
United States laws of inventorship.

8.2 Exclusive License Grant. CFF hereby grants, and agrees to grant to Corbus, the consideration of which is acknowledged, an
exclusive (even as to CFF) fully paid up worldwide license with the right to grant sublicenses to all its rights under the CFF Patents and
Joint  Patents  for  all  purposes  and  to  CFF  Sole  Inventions,  Joint  Inventions,  and  all  information,  methods,  data  and  know-how  that  CFF
controls and is useful to the Development Plan. CFF acknowledges and agrees that it does not retain any rights to any Sole Invention or any
Joint Invention or any Patents claiming such Inventions for any purpose whatsoever.

 -27-

 
 
 
 
 
 
 
 
8.3 Preparation. Corbus will control in its sole discretion the preparation, filing, prosecution, maintenance and enforcement of all
Corbus Patents, CFF Sole Inventions, CFF Patents and Joint Patents. CFF will have the right to review, and Corbus will deliver to CFF, all
patent applications related to CFF Sole Inventions and Joint Inventions prior to their filing. Notwithstanding the foregoing, nothing herein
shall obligate Corbus to prepare or file a patent application directed to any Sole Invention or Joint Invention. CFF agrees to execute any
documents  of  assignment,  declaration,  or  otherwise  reasonably  necessary  for  Corbus  to  file,  prosecute,  maintain  and  enforce  the  Corbus
Patents, CFF Patents and Joint Patents.

8.4 Costs.  Corbus  shall  be  responsible  for  all  costs  incurred  in  the  preparation,  prosecution,  maintenance  and  enforcement  of

Corbus Patents, CFF Patents, and Joint Patents.

8.5  Abandonment.  Notwithstanding  any  contrary  provision  contained  herein,  prior  to  Corbus  (or  any  Affiliate,  licensee,
sublicensee, transferee or successor of Corbus) abandoning any Patent or patent application related to any Product (including abandonment
for  failure  to  pay  any  required  fees)  for  any  reason,  Corbus  shall  promptly  notify  CFF,  or  cause  CFF  to  be  notified,  of  such  pending
abandonment, whereupon CFF shall have the right and opportunity to prosecute or maintain the applicable Patent at CFF’s own expense.
Corbus  hereby  agrees  to  exercise  its  good  faith  efforts  to  obtain  such  consents,  on  CFF’s  behalf,  as  may  be  necessary,  advisable  and/or
appropriate for CFF to exercise its rights under this Section 8.5.

8.6 No License. Nothing herein shall be construed as a grant or obligation of grant of any license of any kind or a change of title

from Corbus to CFF or any Third Party under any Patent owned or controlled by Corbus unless explicitly stated herein.

 -28-

 
 
 
 
 
 
 
 
ARTICLE IX – TERM AND TERMINATION

9.1 Term .  This Agreement  shall  become  effective  as  of  the  Effective  Date  and,  unless  earlier  terminated  pursuant  to  the  other
provisions of this Article IX, shall terminate at such time as when there are no longer any payment obligations owing from Corbus to CFF
under Article IV hereto.

9.2 Termination by CFF For Cause . Notwithstanding any provision contained herein or in any other document to the contrary,
CFF may, without prejudice to any other remedies available to it at law or in equity, terminate this Agreement upon the occurrence of any
of the following events (each, a “Default”) (provided, however, that, in each instance (other than pursuant to Section 9.2(c)), Corbus shall
have  thirty  (30)  days  following  the  earlier  of  Corbus’s  receipt  of  written  notice  from  CFF  to  Corbus  of  the  occurrence  of  a  Default  or
Corbus becoming aware of such Default to cure such Default):

9.2.1  Any  material  breach  or  default  by  Corbus  in  the  performance  of  any  of  its  material  covenants  or  obligations

hereunder;

made; and/or

9.2.2 Any representation or warranty made by Corbus in this Agreement is not true in any material respects as of the date

9.2.3 A case or proceeding (i) under the bankruptcy laws of the United States now or hereafter in effect is filed against
Corbus or all or substantially all of its assets and such petition or application is not dismissed within sixty (60) days after the date of its
filing or Corbus shall file any answer admitting and not contesting such petition, or (ii) under the bankruptcy laws of the United States now
or hereafter in effect or under any insolvency, reorganization, receivership, dissolution or liquidation law or statute of any jurisdiction now
or hereafter in effect (whether at law or equity) is filed by Corbus for all or substantially all of its assets.

 -29-

 
 
 
 
 
 
 
 
 
 
9.3  Termination  for  CFF  Breach .  Corbus  may,  without  prejudice  to  any  other  remedies  available  to  it  at  law  or  in  equity,
terminate  this Agreement  in  the  event  CFF  shall  have  (a)  materially  breached  or  defaulted  in  the  performance  of  any  of  its  material
covenants or obligations hereunder or (b) any representation or warranty made by CFF in this Agreement is not true in any material respects
as of the date made, and such breach or default shall have continued for thirty (30) days after written notice thereof was provided to CFF by
Corbus.

9.4 General Effect of Termination; Survival.

9.4.1 Termination or expiration of this Agreement for any reason shall be without prejudice to any rights that shall have
accrued to the benefit of any Party prior to such termination or expiration. Such termination or expiration shall not relieve any Party from
obligations which are expressly indicated to survive termination of this Agreement.

contained in Sections 3.2 and 9.4 and Articles IV, V, VI, VII, VIII, X and XI shall survive termination or expiration of this Agreement.

9.4.2 If this Agreement is terminated for any reason, all of the Parties’ rights and obligations under, and/or the provisions

9.4.3 Subject to Section 8.4, upon termination or expiration of this Agreement, Corbus will retain ownership or exclusive
rights to the Corbus Development Plan Technology and the inventions licensed to it by CFF pursuant to Article VIII of this Agreement
(including intellectual property rights).

9.5  Prior  Agreement. The  Parties  previously  entered  into  the  Prior  Agreement.  The  terms  of  the  Prior  Agreement  are  not
intended to be affected by this Agreement, and whether or not this Agreement is terminated, the Prior Agreement shall remain in full force
and effect.

 -30-

 
 
 
 
 
 
 
 
 
 
ARTICLE X – REPRESENTATIONS AND WARRANTIES

10.1 Representations and Warranties of Corbus . Corbus represents and warrants to CFF that: (i) this Agreement has been duly
executed  and  delivered  by  Corbus  and  constitutes  the  valid  and  binding  obligation  of  Corbus,  enforceable  against  Corbus  in  accordance
with its terms, except as enforceability may be limited by bankruptcy, fraudulent conveyance, insolvency, reorganization, moratorium and
other  laws  relating  to  or  affecting  creditors’  rights  generally  and  by  general  equitable  principles;  (ii)  the  execution,  delivery  and
performance of this Agreement have been duly authorized by all necessary action on the part of Corbus and its directors and stockholders;
(iii)  the  individual  executing  this Agreement  on  behalf  of  Corbus  is  duly  authorized  to  do  so;  and  (iv)  no  provision  contained  in  this
Agreement violates any other agreement to which Corbus is bound or otherwise subject; and (v) without the Award provided for in this
Agreement, the development of the Product for use in the Field either would not be conducted by Corbus or would be substantially delayed.

10.2 Representations and Warranties of CFF . CFF represents and warrants to Corbus that: (a) this Agreement has been duly
executed and delivered by CFF and constitutes the valid and binding obligation of CFF, enforceable against CFF in accordance with its
terms,  except  as  enforceability  may  be  limited  by  bankruptcy,  fraudulent  conveyance,  insolvency,  reorganization,  moratorium  and  other
laws relating to or affecting creditors’ rights generally and by general equitable principles; (b) the execution, delivery and performance of
this Agreement  have  been  duly  authorized  by  all  necessary  action  on  the  part  of  CFF  and  its  directors;  (c)  the  individual  executing  this
Agreement on behalf of CFF is duly authorized to do so; and (d) no provision contained in this Agreement violates any other agreement to
which CFF is bound or otherwise subject.

ARTICLE XI – MISCELLANEOUS PROVISIONS

11.1 Governing Law . This Agreement shall be governed by and construed in accordance with the internal laws of the State of

Maryland.

 -31-

 
 
 
 
 
 
 
 
 
11.2 Dispute Resolution.

11.2.1  In  the  event  of  any  dispute,  claim  or  controversy  arising  out  of,  relating  to  or  in  any  way  connected  to  the
interpretation  of  any  provision  of  this Agreement,  the  performance  of  either  Party  under  this Agreement  or  any  other  matter  under  this
Agreement, including any action in tort, contract or otherwise, at equity or law (a “Dispute”), either Party may at any time provide the other
Party with written notice specifying the nature and terms of such Dispute in reasonable detail. As soon as practicable after receipt of such
notice, the chief executive officers of each of the Parties or their designees shall meet at a mutually agreed upon time and location for the
purpose of resolving such Dispute. Each Party shall engage in good faith discussions and/or negotiations for a period of up to thirty (30)
days  to  attempt  to  resolve  the  Dispute  or  negotiate  an  interpretation  or  revision  of  the  applicable  portion  of  this Agreement  which  is
mutually agreeable to both Parties without the necessity of formal dispute resolution procedures relating thereto.

pursue the resolution of such Dispute in a court of competent jurisdiction.

11.2.2 In the event that such Dispute is not resolved by the Parties in accordance with subparagraph (a), either Party may

11.3 Waiver .  No  provision  of  this Agreement  may  be  waived  except  in  writing  by  both  Parties  hereto.  No  failure  or  delay  by
either Party hereto in exercising any right or remedy hereunder or under applicable law will operate as a waiver thereof, or a waiver of any
right or remedy on any subsequent occasion.

11.4 Force Majeure. Neither Party will be in breach hereof by reason of its delay in the performance of or failure to perform any
of its obligations hereunder, if that delay or failure is caused by strikes, acts of God or the public enemy, riots, incendiaries, interference by
civil or military authorities, compliance with governmental priorities for materials, or any fault beyond its reasonable control. In such event
Corbus or CFF, as the case may be, shall immediately notify the other Party of such inability and of the period for which such inability is
expected to continue. The Party giving such notice shall thereupon be excused from such of its obligations under this Agreement as it is
thereby disabled from performing for so long as it is so disabled. To the extent possible, each Party shall use reasonable efforts to minimize
the duration of any force majeure.

 -32-

 
 
 
 
 
 
 
 
 
11.5 Severability. Should one or more provisions of this Agreement be or become invalid, then the Parties hereto shall attempt to
agree upon valid provisions in substitution for the invalid provisions, which in their economic effect come so close to the invalid provisions
that it can be reasonably assumed that the Parties would have accepted this Agreement with those new provisions. If the Parties are unable
to agree on such valid provisions, the invalidity of such one or more provisions of this Agreement shall nevertheless not affect the validity
of the Agreement as a whole, unless the invalid provisions are of such essential importance for this Agreement that it may be reasonably
presumed that the Parties would not have entered into this Agreement without the invalid provisions.

11.6 Assignment. This Agreement may not be assigned or otherwise transferred by either Party without the prior written consent
of the other Party; provided, however, that either Party may assign this Agreement, without the consent of the other Party, (i) to any of its
Affiliates,  if  the  assigning  Party  unconditionally  guarantees  the  full  performance  of  its  Affiliate’s  obligations  hereunder,  or  (ii)  in
connection with such Party’s merger, consolidation or transfer, license or sale of all or substantially all of the assets of such Party to which
this Agreement relates, provided, that the successor, surviving entity, purchaser of assets, transferee, or other similar party, as applicable,
expressly  assumes  in  full  in  writing  such  Party’s  obligations  under  this Agreement. Any  purported  assignment  in  contravention  of  this
Section 11.6 shall, at the option of the non-assigning Party, be null and void and of no effect. No assignment shall release either Party from
responsibility  for  the  performance  of  any  accrued  obligation  of  such  Party  hereunder.  This  Agreement  shall  be  binding  upon  and
enforceable against the successor to, or any permitted assignees from, either of the Parties hereto.

 -33-

 
 
 
 
 
 
11.7 Counterparts. This Agreement may be executed in duplicate, each of which shall be deemed to be original and both of which

shall constitute one and the same Agreement.

11.8 No Agency.  Nothing herein contained shall be deemed to create an agency, joint venture, partnership or similar relationship
between CFF and Corbus. Notwithstanding any of the provisions of this Agreement, neither Party to this Agreement shall at any time enter
into,  incur,  or  hold  itself  out  to  Third  Parties  as  having  authority  to  enter  into  or  incur,  on  behalf  of  the  other  Party,  any  commitment,
expense, or liability whatsoever, and all contracts, expenses and liabilities in connection with or relating to the obligations of each Party
under this Agreement shall be made, paid, and undertaken exclusively by such Party on its own behalf and not as an agent or representative
of the other.

11.9 Notice. All communications between the Parties with respect to any of the provisions of this Agreement will be sent to the
addresses set out below, or to such other addresses as may be designated by one party to the other by notice pursuant hereto, by prepaid,
certified air mail (which shall be deemed received by the other Party on the seventh (7th) business day following deposit in the mails), or
by  facsimile  transmission,  or  other  electronic  means  of  communication  (which  shall  be  deemed  received  when  transmitted),  with
confirmation  by  first  class  letter,  postage  pre-paid,  given  by  the  close  of  business  on  or  before  the  next  following  business  day,  or  by  a
nationally recognized overnight courier (which shall be deemed received on the date of delivery):

 -34-

 
 
 
 
 
 
 
if to CFF:

Dr. Preston Campbell, III
President and CEO
4550 Montgomery Ave.
Suite 1100N
Bethesda, Maryland 20814
Phone:
Fax:
E-mail: Pcampbell@cff.org

with a copy to:

Kenneth I. Schaner, Esq.
Schaner & Lubitz, PLLC
4550 Montgomery Ave.
Suite 1100N
Bethesda, Maryland 20814
Phone: 240-482-2848
Fax: 202-470-2241
E-mail: ken@schanerlaw.com

if to Corbus:

Yuval Cohen, CEO
Corbus Pharmaceuticals, Inc
100 River Ridge Drive
Norwood, MA 02062
Phone: 617-963-0100
Fax: 617-663-6085
E-mail: ycohen@CorbusPharma.com

with a copy to:

Lowenstein Sandler LLP
65 Livingston Avenue
Roseland, New Jersey 07068
Attn: Michael J. Lerner, Esq.
Phone: 973-597-6395
E-mail: mlerner@lowenstein.com

-35-

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
11.10 Headings. The paragraph headings are for convenience only and will not be deemed to affect in any way the language of the

provisions to which they refer.

11.11  Entire Agreement .  This Agreement  contains  the  entire  understanding  of  the  Parties  relating  to  the  matters  referred  to

herein, and may only be amended by a written document, duly executed on behalf of the respective Parties.

11.12 No Impairment . Corbus will not, by amendment of its organizational or governing documents, or through reorganization,
recapitalization,  consolidation,  merger,  dissolution,  sale,  transfer  or  assignment  of  assets,  issuance  of  securities,  or  any  other  voluntary
action, avoid or seek to avoid the observance or performance of any of the terms, provisions, covenants or agreements of this Agreement,
but rather will at all times in good faith assist in the carrying out of all such terms, provisions, covenants and agreements and in the taking
of all such actions as may be necessary, advisable or appropriate in order to protect the rights of CFF against impairment.

[Remainder of page intentionally left blank]

-36-

 
 
 
 
 
 
 
 
IN WITNESS WHEREOF, the undersigned have executed this Research, Development and Commercialization Agreement as of

the date first written above.

CYSTIC FIBROSIS FOUNDATION

  CORBUS PHARMACEUTICALS, INC.

By:

/s/ Preston Campbell

Name: Preston Campbell

Title: President and CEO

  By:

/s/ Yuval Cohen

  Name: Yuval Cohen

  Title: CEO

[Signature Page]

 
 
 
 
 
 
 
                            
 
 
 
 
 
 
 
 
 
 
 
 
 
EXHIBIT A

Development Plan

A Multicenter, Randomized, Double-blind, Placebo-controlled Phase 2
Trial to Evaluate Efficacy and Safety of Lenabasum in Cystic Fibrosis

INVESTIGATIONAL PRODUCT: Lenabasum

INDICATION: Cystic fibrosis

INVESTIGATIONAL SITES/LOCATIONS: Up to 100 sites in North America, Europe, Israel and Australia are planned

OBJECTIVES AND ENDPOINTS:

 Primary efficacy objective

 Primary endpoint

To evaluate  the efficacy  of  lenabasum 20  mg  twice per  day
(BID) compared to  placebo  in the  treatmen t o f cystic  fibrosis
(CF)  by  assessin g the  rate  of  pulmonary  exacerbations (PEx)
using primary definition of PEx

 Secondary efficacy objective

1. To  evaluate  the  efficacy  of  lenabasum  20  mg  BID  compared  to
placebo  in  the  treatment  of  CF  by  assessing  other  efficacy
endpoints

Rate of PEx using primary definition of PEx with lenabasum 20 mg
BID, compared to placebo, during the treatment period

 Secondary endpoints
a . Event  rate  of  PEx  using  secondary  definition  of  PEx  with

lenabasum 20 mg BID compared to placebo

b . Time  to  first  new  PEx  using  primary  definition  of  PEx  with

lenabasum 20 mg BID compared to placebo

c . Time  to  first  PEx  using  secondary  definition  of  PEx  with

lenabasum 20 mg BID compared to placebo

d . Change  from  baseline  in  CFQ-R  respiratory  symptom  domain

with lenabasum 20 mg BID compared to placebo

e. Change from baseline in FEV1 %

predicted with lenabasum 20 mg BID
compared to placebo

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2. To  evaluate  the  efficacy  of  lenabasum  5  mg  BID  compared  to
placebo in the treatment of CF

a. Rate of pulmonary exacerbations (PEx) using primary definition
of PEx with lenabasum 5 mg BID compared to placebo, during
the treatment period

b . Event  rate  of  PEx  using  secondary  definition  of  PEx  with

lenabasum 5 mg BID compared to placebo

c . Time  to  first  new  PEx  using  primary  definition  of  PEx  with

lenabasum 5 mg BID compared to placebo

d . Time  to  first  PEx  using  secondary  definition  of  PEx  with

lenabasum 5 mg BID compared to placebo

e . Change  from  baseline  in  CFQ-R  respiratory  symptom  domain

with lenabasum 5 mg BID compared to placebo

f. Change from baseline in FEV1 % predicted with lenabasum 5 mg

BID compared to placebo

Tertiary efficacy objective

Tertiary endpoints

[*]

a.     [*]
b.     [*]
c.     [*]
d.     [*]
e.     [*]
f.      [*]
g.     [*]

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pharmacokinetic (PK) objectives

PK endpoints

[*]

[*]

[*]

[*]

[*]

[*]

[*]

[*]

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Safety objectives
To evaluate  safety  of  lenabasum  20  mg  BID  and  lenabasum  5  mg
BID treatment and placebo treatment

  ● TEAEs

Safety endpoints

●  Changes  in  vital  signs,  physical  examination,  blood  and  urine

laboratory safety tests and electrocardiograms

To evaluate tolerability of lenabasum 20 mg BID and lenabasum 5
mg BID treatment

  Treatment discontinuations with lenabasum treatments compared to

placebo

 
 
 
 
 
 
 
 
 
 
 
STUDY DESIGN:

This is a multicenter, double-blind, randomized, placebo-controlled, parallel group trial of efficacy and safety of treatment of CF subjects
with lenabasum 20 mg BID and lenabasum 5 mg BID.

This trial includes analyses of event rate of and time to PEx. In this study, primary definition of PEx is based on the physician decision to
treat with oral, intravenous or inhaled antibiotic(s) in the presence of at least 4/12 Fuch’s criteria. [*].

The target population is males and females with CF ≥ 12 years of age with FEV1 ≥ 40% predicted and < 100% predicted in 12 months
before screening. The target population will be enriched for subjects with increased risk of a new PEx [*]. Subjects must have 2 or 3 new
PEx treated with intravenous (IV) antibiotics in the 12 months before screening. Alternatively, if the subject had only 1 new PEx treated
with IV antibiotics in the last 12 months, then that subject must have ≥ 1 other new PEx treated with oral antibiotics in the last 12 months
before screening; [*].

See Table 1 below for the eligibility criterion by number of new PEx in the 12 months before screening.

Table 1 Eligibility by Number of New PEx in 12 Months before Screening

New PEx treated with
intravenous antibiotics, N

2 or 3
1
0, > 3

New PEx treated with oral
antibiotics, N
No requirement
≥ 1
Not applicable

[*] subjects will be screened to identify a target of 415 eligible subjects. [*].

Eligible by PEx criteria
Yes
Yes
No

Subjects will be randomized centrally to treatment assignment before dosing in a 2:1:2 ratio to 1 of 3 treatment cohorts:

1. Cohort 1: Lenabasum 20 mg BID, n = 166

2. Cohort 2: Lenabasum 5 mg BID, n = 83

3. Cohort 3: Placebo BID, n = 166.

[*].

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Duration and Visits

[*]. Active dosing with study drug is 28 weeks. [*].

[*] they will return 4 weeks after the last dose of study drug [*].

[*].

[*].

Efficacy Assessments

● [*]

● [*]

● [*]

● [*]

● CFQ-R questionnaire at screening, [*]

● [*]

● [*]

Safety Assessments

● [*]

● [*]

● [*]

● [*]

● [*]

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
STUDY SCHEMATIC

[*]

SUBJECTS (PLANNED): 415 subjects

PATIENT POPULATION:

Target population for this study is subjects ≥ 12 years of age with known diagnosis of CF, with history of prior PEx in the last 12 months,
[*].

STUDY PRODUCTS, DOSE AND MODE OF ADMINISTRATION

Study drugs are [*] of lenabasum 20 mg, lenabasum 5 mg and placebo.

● Lenabasum: The preparation of lenabasum that will be used in this study is [*]

● Placebo: [*]

Lenabasum and placebo capsules are identical in terms of appearance. Both are packaged in the same type container closures with the same
number of capsules.

[*].

DURATION OF TREATMENT: 28 weeks

DISCONTINUATION FROM TREATMENT:

Removal of Subjects from Therapy or Assessments:

An individual subject will have study drug permanently discontinued if any of the following occur in the subject in question:

● Withdrawal of consent

● Pregnancy

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
● Any serious TEAE probably or definitely-related to lenabasum

● Any life-threatening AE.

[*].

Premature Termination or Suspension of the Study:

This study may be suspended or prematurely terminated if there is sufficient reasonable cause. If any of the following events occur in a
subject  during  enrollment,  study  entry  and  randomization  of  new  subjects  into  the  study  will  be  suspended  until  review  of  the  event  in
question occurs by the Data Monitoring Committee (DMC):

● [*]

● [*]

● [*]

● [*]

Administration  of  study  drug  may  continue  during  the  time  of  review  in  subjects  who  are  already  receiving  study  drug,  based  on  the
judgment of the Chief Medical Officer of Corbus.

An expedited and cumulative review of safety data and the circumstances of the event(s) in question will be conducted by the DMC, with
additional external expertise as needed, to make recommendations to Corbus whether screening, randomization, and/or dosing can resume
or  should  be  discontinued,  whether  the  protocol  should  be  modified,  or  whether  the  study  should  be  discontinued  permanently.  Upon
consideration of a cumulative review of safety and other data, the study can be discontinued permanently by Corbus.

Written notification, documenting the reason for study suspension or termination, will be provided by Corbus to the investigators and the
respective country regulatory authorities. If the study is suspended or prematurely terminated, the investigators will promptly inform the
reviewing Independent Ethics Committee/Institutional Review Board (hereafter referred to as the Ethics Committee or EC) at each site and
will  provide  the  reason(s)  for  the  suspension  or  termination.  Review  and  approval  by  the  reviewing  EC  at  each  site  is  required  for
resumption of the study in the event the study is interrupted.

STATISTICAL ANALYSES:

The Statistical Analysis Plan will be completed before database locking and unblinding.

The study is expected to enroll approximately 415 subjects, with ~166 subjects each in the lenabasum 20 mg BID and placebo BID cohorts
and ~83 subjects in the lenabasum 5 mg BID cohort [*].

[*]

[*]

[*]

[*]

Efficacy comparisons will be made between each dose of lenabasum and placebo. The event rate of new PEx will be compared between the
lenabasum and placebo groups [*].

For time to first PEx, [*] will be used for comparing the [*] between the active and placebo groups. [*].

[*] endpoints such as [*], change in CFQ-R domain scores, change in FEV1 % predicted, [*],[*],[*], and [*] will be analyzed using [*].

[*]

[*]

[*]

[*]

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EXHIBIT B

Milestone Payments and Budget

Milestone Payments

 Milestone

Milestone Payment

  Expected Milestone Completion Date

Upon Contract Execution

[*]

[*]

[*]

[*]

[*]

10% ($2,500,000)

15% ($3,750,000)

[*]

[*]

[*]

[*]

[*]

[*]

[*]

[*]

[*]

[*]

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
[*][NOTE: Approximately  seven  pages  of  this  Exhibit  B  for  which  confidential  treatment  has  been  requested  have  been  omitted
and filed separately with the Securities and Exchange Commission.]

BUDGET

 
 
 
 
 
 
 
EXHIBIT C

CFF Patents

None.

 
 
 
 
 
 
 
 
Exhibit D

Warrants Awarded to CFF

Warrant Certificate No. F-1

NEITHER THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES ISSUABLE UPON THE EXERCISE
OF  THIS  WARRANT  HAVE  BEEN  REGISTERED  UNDER  THE  SECURITIES ACT  OF  1933, AS AMENDED  (THE  “ACT”),  OR
ANY  STATE  SECURITIES  LAWS, AND  NEITHER  SUCH  SECURITIES  NOR ANY  INTEREST  THEREIN  MAY  BE  OFFERED,
SOLD, ASSIGNED OR OTHERWISE TRANSFERRED UNLESS (1) A REGISTRATION STATEMENT WITH RESPECT THERETO
IS EFFECTIVE UNDER THE ACT AND ANY APPLICABLE STATE SECURITIES LAWS, OR (2) AN EXEMPTION FROM SUCH
REGISTRATION  EXISTS  AND  THE  COMPANY  RECEIVES  AN  OPINION  OF  COUNSEL  TO  THE  HOLDER  OF  SUCH
SECURITIES,  WHICH  COUNSEL AND  OPINION ARE  SATISFACTORY  TO  THE  COMPANY,  THAT  SUCH  SECURITIES  MAY
BE  OFFERED,  SOLD,  PLEDGED,  ASSIGNED  OR  TRANSFERRED  IN  THE  MANNER  CONTEMPLATED  WITHOUT  AN
EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT OR APPLICABLE STATE SECURITIES LAWS.

Effective Date: January 26, 2018

Void After: January 26, 2025

CORBUS PHARMACEUTICALS HOLDINGS, INC.

WARRANT TO PURCHASE COMMON STOCK

Corbus  Pharmaceuticals  Holdings,  Inc.,  a  Delaware  corporation  (the  “Company”),  for  value  received  on  January  26,  2018  (the
“Effective Date”), hereby issues to The Cystic Fibrosis Foundation (the “ Holder”) this warrant (the “Warrant”) to purchase, 1,000,000
shares  (each  such  share  as  from  time  to  time  adjusted  as  hereinafter  provided  being  a  “Warrant Share”  and  all  such  shares  being  the
“Warrant Shares”) of the Company’s Common Stock (as defined below), at the Exercise Price (as defined below), as adjusted from time
to time as provided herein, on or before January 26, 2025 (the “Expiration Date”), all subject to the following terms and conditions.

As used in this Warrant, (i) “Business Day” means any day other than Saturday, Sunday or any other day on which commercial banks in
the City of New York, New York, are authorized or required by law or executive order to close; (ii) “ Common Stock” means the common
stock of the Company, par value $0.0001 per share,  including  any  securities  issued  or  issuable  with  respect  thereto  or  into  which  or  for
which such shares may be exchanged for, or converted into, pursuant to any stock dividend, stock split, stock combination, recapitalization,
reclassification,  reorganization  or  other  similar  event;  (iii)  “Exercise  Price”  means  $13.20  per  share  of  Common  Stock,  subject  to
adjustment as provided herein; (iv) “Trading Day” means any day on which the Common Stock is traded (or available for trading) on its
principal  Trading  Market  (as  defined  below);  and  (v)  “Affiliate”  means  any  person  that,  directly  or  indirectly,  through  one  or  more
intermediaries,  controls,  is  controlled  by,  or  is  under  common  control  with,  a  person,  as  such  terms  are  used  and  construed  in  Rule  144
promulgated under the Securities Act of 1933, as amended (the “Securities Act”). For purposes hereof, “Trading Market” means any of
the  following  markets  or  exchanges  on  which  the  Common  Stock  is  listed  or  quoted  for  trading  on  the  date  in  question:  the  New  York
Stock Exchange, the NYSE MKT, the NASDAQ Global Select Market, the NASDAQ Global Market, the NASDAQ Capital Market, or
any other national securities exchange, as well as the OTC Bulletin Board or any tier of the OTC Markets.

1. DURATION AND EXERCISE OF WARRANTS

(a) Exercise Period. Commencing on the Effective Date of this Warrant, the Holder may exercise this Warrant for up to 500,000 shares of
Common Stock (the “Initial Exercise Amount”). Upon the Completion of the CF Trial (as defined below), the Holder may exercise this
Warrant for the remaining 500,000 shares of Common Stock (the “Additional Exercise Amount”) issuable pursuant to the terms of this
Warrant. At no point in time, may the Holder exercise this Warrant for more than 1,000,000 shares of Common Stock in the aggregate. The
Holder may exercise this Warrant, in whole or in part (in accordance with the limitations set forth in this Section 1(a)), on any Business Day
on or before 5:00 P.M., Eastern Time, on the Expiration Date, at which time this Warrant shall become void and of no value. For purposes
of this Warrant, the term “Completion of the CF Trial” shall mean completion of the final Milestone by the Company and receipt of the
final Milestone Payment by the Company from Cystic Fibrosis Foundation as set forth in Exhibit B to the Cystic Fibrosis Program Related
Investment Agreement by and between Corbus Pharmaceuticals, Inc. and Cystic Fibrosis Foundation dated January 26, 2018.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(b) Exercise Procedures.

(i) While this Warrant remains outstanding and exercisable in accordance with Section 1(a) , the Holder may exercise this Warrant in whole
or in part at any time and from time to time by:

(A) delivery to the Company of a duly executed copy of the Notice of Exercise attached as Exhibit A;

(B) surrender of this Warrant to the Secretary of the Company at its principal offices or at such other office or agency as the Company may
specify in writing to the Holder; and

(C) payment of the then-applicable Exercise Price per share multiplied by the number of Warrant Shares being purchased upon exercise of
the Warrant (such amount, the “ Aggregate Exercise Price”) made in the form of cash, or by certified check, bank draft or money order
payable in lawful money of the United States of America.

(ii) Upon the exercise of this Warrant in compliance with the provisions of Section 1(a) and this Section 1(b), the Company shall promptly
issue and cause to be delivered to the Holder a certificate for the Warrant Shares purchased by the Holder. Each exercise of this Warrant
shall be effective immediately prior to the close of business on the date (the “Date of Exercise”) that the conditions set forth in this Section
1(b) have been satisfied, as the case may be. On the first Business Day following the date on which the Company has received each of the
Notice  of  Exercise  and  the  Aggregate  Exercise  Price  (the  “ Exercise  Delivery  Documents”),  the  Company  shall  transmit  an
acknowledgment of receipt of the Exercise Delivery Documents to the Company’s transfer agent (the “ Transfer Agent”). On or before the
second Business Day following the date on which the Company has received all of the Exercise Delivery Documents (the “Share Delivery
Date”),  the  Company  shall  (X)  provided  that  the  Transfer  Agent  is  participating  in  The  Depository  Trust  Company  (“ DTC”)  Fast
Automated  Securities  Transfer  Program,  upon  the  request  of  the  Holder,  credit  such  aggregate  number  of  shares  of  Common  Stock  to
which  the  Holder  is  entitled  pursuant  to  such  exercise  to  the  Holder’s  or  its  designee’s  balance  account  with  DTC  through  its  Deposit
Withdrawal Agent Commission system, or (Y) if the Transfer Agent is not participating in the DTC Fast Automated Securities Transfer
Program,  issue  and  dispatch  by  overnight  courier  to  the  address  as  specified  in  the  Notice  of  Exercise,  a  certificate,  registered  in  the
Company’s share register in the name of the Holder or its designee, for the number of shares of Common Stock to which the Holder is
entitled  pursuant  to  such  exercise.  Upon  delivery  of  the  Exercise  Delivery  Documents,  the  Holder  shall  be  deemed  for  all  corporate
purposes to have become the holder of record of the Warrant Shares with respect to which this Warrant has been exercised, irrespective of
the date of delivery of the certificates evidencing such Warrant Shares.

(c) Partial Exercise. This Warrant shall be exercisable, either in its entirety or, from time to time, for part only of the number of Warrant
Shares referenced by this Warrant for which the Warrant is then currently exercisable. If this Warrant is submitted in connection with any
exercise  pursuant  to  Section  1  and  the  number  of  Warrant  Shares  represented  by  this  Warrant  submitted  for  exercise  is  greater  than  the
actual number of Warrant Shares being acquired upon such an exercise, then the Company shall as soon as practicable after any exercise
and  at  its  own  expense,  issue  a  new  Warrant  of  like  tenor  representing  the  right  to  purchase  the  number  of  Warrant  Shares  purchasable
immediately prior to such exercise under this Warrant, less the number of Warrant Shares with respect to which this Warrant is exercised.

(d) Disputes. In the case of a dispute as to the determination of the Exercise Price or the arithmetic calculation of the Warrant Shares, the
Company shall promptly issue to the Holder the number of Warrant Shares that are not disputed and resolve such dispute in accordance
with Section 16.

 
 
 
 
 
 
 
 
 
 
 
 
 
2.

ISSUANCE OF WARRANT SHARES

(a)  The  Company  covenants  that  all  Warrant  Shares  will,  upon  issuance  in  accordance  with  the  terms  of  this  Warrant,  be  (i)  duly
authorized, fully paid and non-assessable, and (ii) free from all liens, charges and security interests, with the exception of claims arising
through the acts or omissions of any Holder and except as arising from applicable Federal and state securities laws.

(b) The Company shall register this Warrant upon records to be maintained by the Company for that purpose in the name  of  the  record
holder of such Warrant from time to time. The Company may deem and treat the registered Holder of this Warrant as the absolute owner
thereof for the purpose of any exercise thereof, any distribution to the Holder thereof and for all other purposes.

(c)  The  Company  will  not,  by  amendment  of  its  certificate  of  incorporation,  by-laws  or  through  any  reorganization,  transfer  of  assets,
consolidation,  merger,  dissolution,  issue  or  sale  of  securities  or  any  other  voluntary  action,  avoid  or  seek  to  avoid  the  observance  or
performance of any of the terms to be observed or performed hereunder by the Company, but will at all times in good faith assist in the
carrying out of all the provisions of this Warrant and in the taking of all action necessary or appropriate in order to protect the rights of the
Holder to exercise this Warrant, or against impairment of such rights.

3. ADJUSTMENTS OF EXERCISE PRICE, NUMBER AND TYPE OF WARRANT SHARES

(a) The Exercise Price and the number of shares purchasable upon the exercise of this Warrant shall be subject to adjustment from time to
time upon the occurrence of certain events described in this Section 3; provided, that notwithstanding the provisions of this Section 3, the
Company  shall  not  be  required  to  make  any  adjustment  if  and  to  the  extent  that  such  adjustment  would  require  the  Company  to  issue  a
number of shares of Common Stock in excess of its authorized but unissued shares of Common Stock, less all amounts of Common Stock
that  have  been  reserved  for  issue  upon  the  conversion  of  all  outstanding  securities  convertible  into  shares  of  Common  Stock  and  the
exercise of all outstanding options, warrants and other rights exercisable for shares of Common Stock. If the Company does not have the
requisite number of authorized but unissued shares of Common Stock to make any adjustment, the Company shall use its commercially
reasonable efforts to obtain the necessary stockholder consent to increase the authorized number of shares of Common Stock to make such
an adjustment pursuant to this Section 3.

(i) Subdivision or Combination of Stock. In case the Company shall at any time subdivide (whether by way of stock dividend, stock split or
otherwise) its outstanding shares of Common Stock into a greater number of shares, the Exercise Price in effect immediately prior to such
subdivision shall be proportionately reduced and the number of Warrant Shares, the Initial Exercise Amount and the Additional Exercise
Amount  shall  be  proportionately  increased,  and  conversely,  in  case  the  outstanding  shares  of  Common  Stock  of  the  Company  shall  be
combined (whether by way of stock combination, reverse stock split or otherwise) into a smaller number of shares, the Exercise Price in
effect  immediately  prior  to  such  combination  shall  be  proportionately  increased  and  the  number  of  Warrant  Shares,  the  Initial  Exercise
Amount  and  the  Additional  Exercise  Amount  shall  be  proportionately  decreased.  The  Exercise  Price,  the  Warrant  Shares,  the  Initial
Exercise Amount and the Additional Exercise Amount, as so adjusted, shall be readjusted in the same manner upon the happening of any
successive event or events described in this Section 3(a)(i).

(ii) Dividends in Stock, Property, Reclassification. If at any time, or from time to time, all of the holders of Common Stock (or any shares of
stock or other securities at the time receivable upon the exercise of this Warrant) shall have received or become entitled to receive, without
payment therefore:
(A) any shares of stock or other securities that are at any time directly or indirectly convertible into or exchangeable for Common Stock, or
any rights or options to subscribe for, purchase or otherwise acquire any of the foregoing by way of dividend or other distribution, or

(B) additional stock or other securities or property (including cash) by way of spin-off, split-up, reclassification, combination of shares or
similar  corporate  rearrangement  (other  than  shares  of  Common  Stock  issued  as  a  stock  split  or  adjustments  in  respect  of  which  shall  be
covered  by  the  terms  of  Section  3(a)(i)  above),  then  and  in  each  such  case,  the  Exercise  Price  and  the  number  of  Warrant  Shares  to  be
obtained upon exercise of this Warrant shall be adjusted proportionately, and the Holder hereof shall, upon the exercise of this Warrant, be
entitled  to  receive,  in  addition  to  the  number  of  shares  of  Common  Stock  receivable  thereupon,  and  without  payment  of  any  additional
consideration therefor, the amount of stock and other securities and property (including cash in the cases referred to above) that such Holder
would hold on the date of such exercise had such Holder been the holder of record of such Common Stock as of the date on which holders
of Common Stock received or became entitled to receive such shares or all other additional stock and other securities and property. The
Exercise Price and the Warrant Shares, as so adjusted, shall be readjusted in the same manner upon the happening of any successive event
or events described in this Section 3(a)(ii).

 
 
 
 
 
 
 
 
 
 
 
 
 
 
(iii) Reorganization, Reclassification, Consolidation, Merger or Sale. If any recapitalization, reclassification or reorganization of the capital
stock of the Company, or any consolidation or merger of the Company with another corporation, or the sale of all or substantially all of its
assets or other transaction shall be effected in such a way that holders of Common Stock shall be entitled to receive stock, securities, or
other  assets  or  property  (an  “Organic Change”),  then,  as  a  condition  of  such  Organic  Change,  lawful  and  adequate  provisions  shall  be
made  by  the  Company  whereby  the  Holder  hereof  shall  thereafter  have  the  right  to  purchase  and  receive  (in  lieu  of  the  shares  of  the
Common  Stock  of  the  Company  immediately  theretofore  purchasable  and  receivable  upon  the  exercise  of  the  rights  represented  by  this
Warrant) such shares of stock, securities or other assets or property as may be issued or payable with respect to or in exchange for a number
of  outstanding  shares  of  such  Common  Stock  equal  to  the  number  of  shares  of  such  stock  immediately  theretofore  purchasable  and
receivable assuming the full exercise of the rights represented by this Warrant. In the event of any Organic Change, appropriate provision
shall be made by the Company with respect to the rights and interests of the Holder to the end that the provisions hereof (including, without
limitation, provisions for adjustments of the Exercise Price and of the number of shares purchasable and receivable upon the exercise of this
Warrant) shall thereafter be applicable, in relation to any shares of stock, securities or assets thereafter deliverable upon the exercise hereof.
The Company will not affect any such consolidation, merger or sale unless, prior to the consummation thereof, the successor corporation (if
other  than  the  Company)  resulting  from  such  consolidation  or  merger  or  the  corporation  purchasing  such  assets  shall  assume  by  written
instrument reasonably satisfactory in form and substance to the Holder executed and mailed or delivered to the registered Holder hereof at
the  last  address  of  such  Holder  appearing  on  the  books  of  the  Company,  the  obligation  to  deliver  to  such  Holder  such  shares  of  stock,
securities or assets as, in accordance with the foregoing provisions, such Holder may be entitled to purchase. If there is an Organic Change,
then the Company shall cause to be mailed to the Holder at its last address as it shall appear on the books and records of the Company, at
least 10 calendar days before the effective date of the Organic Change, a notice stating the date on which such Organic Change is expected
to  become  effective  or  close,  and  the  date  as  of  which  it  is  expected  that  holders  of  the  Common  Stock  of  record  shall  be  entitled  to
exchange their shares for securities, cash, or other property delivered upon such Organic Change; provided, that the failure to mail such
notice or any defect therein or in the mailing thereof shall not affect the validity of the corporate action required to be specified in such
notice. The Holder is entitled to exercise this Warrant during the 10-day period for the amount of shares of Common Stock for which this
Warrant is then currently exercisable commencing on the date of such notice to the effective date of the event triggering such notice. In any
event,  the  successor  corporation  (if  other  than  the  Company)  resulting  from  such  consolidation  or  merger  or  the  corporation  purchasing
such assets shall be deemed to assume such obligation to deliver to such Holder such shares of stock, securities or assets even in the absence
of a written instrument assuming such obligation to the extent such assumption occurs by operation of law.

(b) Certificate as to Adjustments . Upon the occurrence of each adjustment or readjustment pursuant to this Section 3, the Company at its
expense  shall  promptly  compute  such  adjustment  or  readjustment  in  accordance  with  the  terms  hereof  and  furnish  to  each  Holder  a
certificate  setting  forth  such  adjustment  or  readjustment  and  showing  in  detail  the  facts  upon  which  such  adjustment  or  readjustment  is
based. The Company shall promptly furnish or cause to be furnished to such Holder a like certificate setting forth: (i) such adjustments and
readjustments;  and  (ii)  the  number  of  shares  and  the  amount,  if  any,  of  other  property  which  at  the  time  would  be  received  upon  the
exercise of the Warrant.

(c) Certain Events.  If  any  event  occurs  as  to  which  the  other  provisions  of  this  Section  3  are  not  strictly  applicable  but  the  lack  of  any
adjustment would not fairly protect the purchase rights of the Holder under this Warrant in accordance with the basic intent and principles
of such provisions, or if strictly applicable would not fairly protect the purchase rights of the Holder under this Warrant in accordance with
the  basic  intent  and  principles  of  such  provisions,  then  the  Company’s  Board  of  Directors  will,  in  good  faith,  make  an  appropriate
adjustment  to  protect  the  rights  of  the  Holder; provided, that no such adjustment pursuant to this Section 3(c) will increase the Exercise
Price or decrease the number of Warrant Shares as otherwise determined pursuant to this Section 3.

 
 
 
 
 
 
 
 
4. RESERVED

5. TRANSFERS AND EXCHANGES OF WARRANT AND WARRANT SHARES

(a) Registration of Transfers and Exchanges.  Subject  to  Section  5(c),  upon  the  Holder’s  surrender  of  this  Warrant,  with  a  duly  executed
copy of the Form of Assignment attached as Exhibit B, to the Secretary of the Company at its principal offices or at such other office or
agency as the Company may specify in writing to the Holder, the Company shall register the transfer of all or any portion of this Warrant.
Upon  such  registration  of  transfer,  the  Company  shall  issue  a  new  Warrant,  in  substantially  the  form  of  this  Warrant,  evidencing  the
acquisition  rights  transferred  to  the  transferee  and  a  new  Warrant,  in  similar  form,  evidencing  the  remaining  acquisition  rights  not
transferred, to the Holder requesting the transfer.

(b) Warrant  Exchangeable  for  Different  Denominations.  The  Holder  may  exchange  this  Warrant  for  a  new  Warrant  or  Warrants,  in
substantially the form of this Warrant, evidencing in the aggregate the right to purchase the number of Warrant Shares which may then be
purchased hereunder, each of such new Warrants to be dated the date of such exchange and to represent the right to purchase such number
of Warrant Shares as shall be designated by the Holder. The Holder shall surrender this Warrant with duly executed instructions regarding
such  re-certification  of  this  Warrant  to  the  Secretary  of  the  Company  at  its  principal  offices  or  at  such  other  office  or  agency  as  the
Company may specify in writing to the Holder.

(c) Restrictions on Transfers. This Warrant may not be transferred at any time without: (i) registration under the Securities Act; or (ii) an
exemption  from  such  registration  and  a  written  opinion  of  legal  counsel  addressed  to  the  Company  that  the  proposed  transfer  of  the
Warrant  may  be  effected  without  registration  under  the  Securities  Act,  which  opinion  will  be  in  form  and  from  counsel  reasonably
satisfactory to the Company.

(d) Permitted Transfers and Assignments. Notwithstanding any provision to the contrary in this Section 5, the Holder may transfer, with or
without  consideration,  this  Warrant  or  any  of  the  Warrant  Shares  (or  a  portion  thereof)  to  the  Holder’s Affiliates  without  obtaining  the
opinion  from  counsel  that  may  be  required  by  Section  5(c)(ii), provided,  that  the  Holder  delivers  to  the  Company  and  its  counsel
certification,  documentation,  and  other  assurances  reasonably  required  by  the  Company’s  counsel  to  enable  the  Company’s  counsel  to
render an opinion to the Company’s Transfer Agent that such transfer does not violate applicable securities laws.

6. MUTILATED OR MISSING WARRANT CERTIFICATE

If this Warrant is mutilated, lost, stolen or destroyed, upon request by the Holder, the Company will, at its expense, issue, in exchange for
and upon cancellation of the mutilated Warrant, or in substitution for the lost, stolen or destroyed Warrant, a new Warrant, in substantially
the form of this Warrant, representing the right to acquire the equivalent number of Warrant Shares;  provided, that, as a prerequisite to the
issuance of a substitute Warrant, the Company may require satisfactory evidence of loss, theft or destruction as well as an indemnity from
the Holder of a lost, stolen or destroyed Warrant.

7. PAYMENT OF TAXES

The Company will pay all transfer and stock issuance taxes attributable to the preparation, issuance and delivery of this Warrant and the
Warrant  Shares  (and  replacement  Warrants)  including,  without  limitation,  all  documentary  and  stamp  taxes;  provided, however,  that  the
Company  shall  not  be  required  to  pay  any  tax  in  respect  of  the  transfer  of  this  Warrant,  or  the  issuance  or  delivery  of  certificates  for
Warrant Shares or other securities in respect of the Warrant Shares to any person or entity other than to the Holder.

8. FRACTIONAL WARRANT SHARES

No fractional Warrant Shares shall be issued upon exercise of this Warrant. The Company, in lieu of issuing any fractional Warrant Share,
shall round up the number of Warrant Shares issuable to nearest whole share.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
9. NO STOCK RIGHTS AND LEGEND

No holder of this Warrant, as such, shall be entitled to vote or be deemed the holder of any other securities of the Company that may at any
time be issuable on the exercise hereof, nor shall anything contained herein be construed to confer upon the holder of this Warrant, as such,
the rights of a stockholder of the Company or the right to vote for the election of directors or upon any matter submitted to stockholders at
any  meeting  thereof,  or  give  or  withhold  consent  to  any  corporate  action  or  to  receive  notice  of  meetings  or  other  actions  affecting
stockholders (except as provided herein), or to receive dividends or subscription rights or otherwise (except as provide herein).

Each certificate for Warrant Shares initially issued upon the exercise of this Warrant, and each certificate for Warrant Shares issued to any
subsequent transferee of any such certificate, shall be stamped or otherwise imprinted with a legend in substantially the following form:

“THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT
OF  1933, AS AMENDED  (THE  “ACT”),  OR ANY  STATE  SECURITIES  LAWS, AND  NEITHER  SUCH  SECURITIES  NOR ANY
INTEREST  THEREIN  MAY  BE  OFFERED,  SOLD,  PLEDGED,  ASSIGNED  OR  OTHERWISE  TRANSFERRED  UNLESS  (1)  A
REGISTRATION STATEMENT WITH RESPECT THERETO IS EFFECTIVE UNDER THE ACT AND ANY APPLICABLE STATE
SECURITIES  LAWS,  OR  (2) AN  EXEMPTION  FROM  SUCH  REGISTRATION  EXISTS AND  THE  COMPANY  RECEIVES AN
OPINION  OF  COUNSEL  TO  THE  HOLDER  OF  SUCH  SECURITIES,  WHICH  COUNSEL AND  OPINION ARE  REASONABLY
SATISFACTORY  TO  THE  COMPANY,  THAT  SUCH  SECURITIES  MAY  BE  OFFERED,  SOLD,  PLEDGED,  ASSIGNED  OR
TRANSFERRED IN THE MANNER CONTEMPLATED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT UNDER THE
ACT OR APPLICABLE STATE SECURITIES LAWS.”

10. LOCK-UP

Any Warrant Shares acquired pursuant to an exercise of this Warrant must not be transferred, sold, hypothecated or otherwise disposed for a
period of one year from the date on which the Share Delivery Date .

11. NOTICES

All notices, consents, waivers, and other communications under this Warrant must be in writing and will be deemed given to a party when
(a) delivered to the appropriate address by hand or by nationally recognized overnight courier service (costs prepaid); (b) sent by facsimile
or e-mail with confirmation of transmission by the transmitting equipment; (c) received or rejected by the addressee, if sent by certified
mail, return receipt requested, if to the registered Holder hereof; or (d) seven (7) days after the placement of the notice into the mails (first
class postage prepaid), to the Holder at the address, facsimile number, or e-mail address furnished by the registered Holder to the Company
in accordance with the Subscription Agreement by and between the Company and the Holder, or if to the Company, to it at One Kendall
Square, Bldg 200, Cambridge, MA 02139, Attn: Yuval Cohen, CEO (or to such other address, facsimile number, or e-mail address as the
Holder or the Company as a party may designate by notice the other party).

12. SEVERABILITY

If a court of competent jurisdiction holds any provision of this Warrant invalid or unenforceable, the other provisions of this Warrant will
remain in full force and effect. Any provision of this Warrant held invalid or unenforceable only in part or degree will remain in full force
and effect to the extent not held invalid or unenforceable.

13. BINDING EFFECT

This Warrant shall be binding upon and inure to the sole and exclusive benefit of the Company, its successors and assigns, the registered
Holder or Holders from time to time of this Warrant and the Warrant Shares.

14. SURVIVAL OF RIGHTS AND DUTIES

This Warrant shall terminate and be of no further force and effect on the earlier of 5:00 P.M., Eastern Time, on the Expiration Date or the
date on which this Warrant has been exercised in full.

15. GOVERNING LAW

This Warrant will be governed by and construed under the laws of the State of New York without regard to conflicts of laws principles that
would require the application of any other law.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
16. DISPUTE RESOLUTION

In the case of a dispute as to the determination of the Exercise Price or the arithmetic calculation of the Warrant Shares, the Company shall
submit  the  disputed  determinations  or  arithmetic  calculations  via  facsimile  within  two  (2)  Business  Days  of  receipt  of  the  Notice  of
Exercise  giving  rise  to  such  dispute,  as  the  case  may  be,  to  the  Holder.  If  the  Holder  and  the  Company  are  unable  to  agree  upon  such
determination  or  calculation  of  the  Exercise  Price  or  the  Warrant  Shares  within  three  Business  Days  of  such  disputed  determination  or
arithmetic  calculation  being  submitted  to  the  Holder,  then  the  Company  shall,  within  two  Business  Days,  submit  via  facsimile  (a)  the
disputed determination of the Exercise Price to an independent, reputable investment bank selected by the Company and approved by the
Holder or (b) the disputed arithmetic calculation of the Warrant Shares to the Company’s independent, outside accountant. The Company
shall  cause  at  its  expense  the  investment  bank  or  the  accountant,  as  the  case  may  be,  to  perform  the  determinations  or  calculations  and
notify the Company and the Holder of the results no later than ten (10) Business Days from the time it receives the disputed determinations
or calculations. Such investment bank’s or accountant’s determination or calculation, as the case may be, shall be binding upon all parties
absent demonstrable error.

17. NOTICES OF RECORD DATE

Upon (a) any establishment by the Company of a record date of the holders of any class of securities for the purpose of determining the
holders thereof who are entitled to receive any dividend or other distribution, or right or option to acquire securities of the Company, or any
other  right;  or  (b)  any  capital  reorganization,  reclassification,  recapitalization,  merger  or  consolidation  of  the  Company  with  or  into  any
other corporation, any transfer of all or substantially all the assets of the Company, or any voluntary or involuntary dissolution, liquidation
or winding up of the Company, or the sale, in a single transaction, of a majority of the Company’s voting stock (whether newly issued, or
from treasury, or previously issued and then outstanding, or any combination thereof), the Company shall mail to the Holder at least ten
(10) Business Days, or such longer period as may be required by law, prior to the record date specified therein, a notice specifying; (i) the
date established as the record date for the purpose of such dividend, distribution, option or right and a description of such dividend, option
or right; (ii) the date on which any such reorganization, reclassification, transfer, consolidation, merger, dissolution, liquidation or winding
up,  or  sale  is  expected  to  become  effective;and  (iii)  the  date,  if  any,  fixed  as  to  when  the  holders  of  record  of  Common  Stock  shall  be
entitled to exchange their shares of Common Stock for securities or other property deliverable upon such reorganization, reclassification,
transfer, consolation, merger, dissolution, liquidation or winding up.

18. RESERVATION OF SHARES

The Company shall reserve and keep available out of its authorized but unissued shares of Common Stock for issuance upon the exercise of
this  Warrant,  free  from  pre-emptive  rights,  such  number  of  shares  of  Common  Stock  for  which  this  Warrant  shall  from  time  to  time  be
exercisable. The Company will take all such reasonable action as may be necessary to assure that such Warrant Shares may be issued as
provided  herein  without  violation  of  any  applicable  law  or  regulation.  Without  limiting  the  generality  of  the  foregoing,  the  Company
covenants  that  it  will  use  commercially  reasonable  efforts  to  take  all  such  action  as  may  be  necessary  or  appropriate  in  order  that  the
Company  may  validly  and  legally  issue  fully  paid  and  nonassessable  Warrant  Shares  upon  the  exercise  of  this  Warrant  and  use
commercially reasonable efforts to obtain all such authorizations, exemptions or consents, including but not limited to consents from the
Company’s stockholders or Board of Directors or any public regulatory body, as may be necessary to enable the Company to perform its
obligations under this Warrant.

19. NO THIRD PARTY RIGHTS

This Warrant is not intended, and will not be construed, to create any rights in any parties other than the Company and the Holder, and no
person or entity may assert any rights as third-party beneficiary hereunder.

[SIGNATURE PAGE FOLLOWS]

 
 
 
 
 
 
 
 
 
 
 
 
 
 
IN WITNESS WHEREOF, the Company has caused this Warrant to be duly executed as of the date first set forth above.

CORBUS PHARMACEUTICALS HOLDINGS, INC.

By:  
Name:Yuval Cohen
Title: Chief Executive Officer

 
 
 
 
 
 
                             
 
 
 
 
 
 
 
 
EXHIBIT A

NOTICE OF EXERCISE

(To be executed by the Holder of Warrant if such Holder desires to exercise Warrant)

To Corbus Pharmaceuticals Holdings, Inc.:

The undersigned hereby irrevocably elects to exercise this Warrant and to purchase thereunder, [ ] full shares of Corbus Pharmaceuticals
Holdings, Inc. Common Stock issuable upon exercise of the Warrant and delivery of:

$[ ] (in cash as provided for in the foregoing Warrant) and any applicable taxes payable by the undersigned pursuant to such Warrant.

The undersigned requests that certificates for such shares be issued in the name of:

(Please print name, address and social security or federal employer
identification number (if applicable))

If the shares issuable upon this exercise of the Warrant are not all of the Warrant Shares which the Holder is entitled to acquire upon the
exercise of the Warrant, the undersigned requests that a new Warrant evidencing the rights not so exercised be issued in the name of and
delivered to:

(Please print name, address and social security or federal employer
identification number (if applicable))

Name of Holder (print):
(Signature):
(By:)
(Title:)
Dated:

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EXHIBIT B

FORM OF ASSIGNMENT

FOR VALUE RECEIVED, [ ] hereby sells, assigns and transfers to each assignee set forth below all of the rights of the undersigned under
the Warrant (as defined in and evidenced by the attached Warrant) to acquire the number of Warrant Shares set opposite the name of such
assignee  below  and  in  and  to  the  foregoing  Warrant  with  respect  to  said  acquisition  rights  and  the  shares  issuable  upon  exercise  of  the
Warrant:

Name of Assignee

Address

Number of Shares

If the total of the Warrant Shares are not all of the Warrant Shares evidenced by the foregoing Warrant, the undersigned requests that a new
Warrant evidencing the right to acquire the Warrant Shares not so assigned be issued in the name of and delivered to the undersigned.

Name of Holder (print):
(Signature):
(By:)
(Title:)
Dated:

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statements of Corbus Pharmaceuticals Holdings, Inc. on Form S-3 (No.
333-222447)  and  Form  S-8  (Nos.  333-200350,  333-201898,  333-210428  and  333-216547)  of  our  report  dated  March  12,  2018,  on  our
audits of the consolidated financial statements as of December 31, 2017 and 2016 and for each of the years in the three-year period ended
December 31, 2017, which report is included in this Annual Report on Form 10-K to be filed on or about March 12, 2018.

Exhibit 23.1

/s/ EisnerAmper LLP

EISNERAMPER LLP
Iselin, New Jersey
March 12, 2018

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT
TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Yuval Cohen, certify that:

Exhibit 31.1

1.

I have  reviewed  this  annual  report  on  Form  10-K  for  the  period  ended  December  31,  2017  of  Corbus  Pharmaceuticals  Holdings,
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(s) and I are responsible for establishing and maintaining disclosure controls and procedures
(as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financing reporting (as  defined in Exchange
Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

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

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

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

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

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

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

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s

internal control over financial reporting.

Date: March 12, 2018

/s/ Yuval Cohen
Yuval Cohen
Chief Executive Officer
(Principal Executive Officer)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT
TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Sean M. Moran, certify that:

Exhibit 31.2

1.

I have  reviewed  this  annual  report  on  Form  10-K  for  the  period  ended  December  31,  2017  of  Corbus  Pharmaceuticals  Holdings,
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(s) and I are responsible for establishing and maintaining disclosure controls and procedures
(as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financing reporting (as  defined in Exchange
Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

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

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

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

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

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

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

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s

internal control over financial reporting.

Date: March 12, 2018

/s/ Sean Moran
Sean Moran
Chief Financial Officer
(Principal Accounting and Financial Officer)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Certification of Chief Executive Officer Pursuant to
18 U.S.C. Section 1350,
as Adopted Pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 32.1

This Certification is being filed pursuant to 18 U.S.C. Section 1350, as adopted by Section 906 of the Sarbanes-Oxley Act of 2002. This
Certification  is  included  solely  for  the  purposes  of  complying  with  the  provisions  of  Section  906  of  the  Sarbanes-Oxley Act  and  is  not
intended to be used for any other purpose. In connection with the accompanying Annual Report on Form 10-K of Corbus Pharmaceuticals
Holdings,  Inc.  for  the  year  ended  December  31,  2017,  each  of  the  undersigned  hereby  certifies  in  his  capacity  as  an  officer  of  Corbus
Pharmaceuticals Holdings, Inc. that to such officer’s knowledge:

(1) The Annual 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 Annual  Report  fairly  presents,  in  all  material  respects,  the  financial  condition  and  results  of

operations of the Company.

Dated: March 12, 2018

By: /s/ Yuval Cohen
  Yuval Cohen

Chief Executive Officer
(Principal Executive Officer)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Certification of Chief Financial Officer Pursuant to
18 U.S.C. Section 1350,
as Adopted Pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 32.2

This Certification is being filed pursuant to 18 U.S.C. Section 1350, as adopted by Section 906 of the Sarbanes-Oxley Act of 2002. This
Certification  is  included  solely  for  the  purposes  of  complying  with  the  provisions  of  Section  906  of  the  Sarbanes-Oxley Act  and  is  not
intended to be used for any other purpose. In connection with the accompanying Annual Report on Form 10-K of Corbus Pharmaceuticals
Holdings,  Inc.  for  the  year  ended  December  31,  2017,  each  of  the  undersigned  hereby  certifies  in  his  capacity  as  an  officer  of  Corbus
Pharmaceuticals Holdings, Inc. that to such officer’s knowledge:

(1) The Annual 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 Annual  Report  fairly  presents,  in  all  material  respects,  the  financial  condition  and  results  of

operations of the Company.

Dated: March 12, 2018

By: /s/ Sean Moran
Sean Moran
Chief Financial Officer
(Principal Accounting and Financial Officer)