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G1 Therapeutics

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FY2020 Annual Report · G1 Therapeutics
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

(Mark One)
☒

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

For the fiscal year ended December 31, 2020

OR

☐

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

FOR THE TRANSITION PERIOD FROM                      TO

Commission File Number 001-38096

G1 THERAPEUTICS, INC.

(Exact name of Registrant as specified in its Charter)

Delaware
( State or other jurisdiction of
incorporation or organization)

26-3648180
(I.R.S. Employer
Identification No.)

700 Park Offices Drive, Suite 200
Research Triangle Park, NC 27709
(Address of principal executive offices including zip code)
Registrant’s telephone number, including area code: (919) 213-9835

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

Title of each class

Common Stock $.0001 par value

Trading Symbol

GTHX

Name of each exchange on which registered

The Nasdaq Stock Market

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

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

Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. YES ☐ No ☒
Indicate by check mark whether the Registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding
12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐
Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of
this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit such files). Yes ☒ No ☐
Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company.
See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer

Non-accelerated filer

Emerging growth company

  ☒

  ☐  

  ☐

   Accelerated filer

   Smaller reporting company

  ☐

  ☐

If an emerging growth company, indicate by check mark if the Registrant has elected not to use the extended transition period for complying with any new or revised financial
accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

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

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒
The aggregate market value of the voting and non-voting common equity held by non-affiliates of the Registrant as of June 30, 2020, the last business day of the Registrant’s most
recently completed second fiscal quarter, was $820.8 million based on the closing price of the shares of common stock on The Nasdaq Stock Market on that date.
The number of shares of the Registrant’s Common Stock outstanding as of February 22, 2021 was 41,959,379.

Documents Incorporated by Reference

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
Portions of the Registrant’s Definitive Proxy Statement relating to the Annual Meeting of Stockholders, scheduled to be held on June 17, 2021, are incorporated by reference into
Part III of this report. Such proxy statement will be filed with the Securities and Exchange Commission within 120 days of the Registrant’s fiscal year ended December 31, 2020.

 
 
 
 
PART I
Item 1.
Item 1A.
Item 1B.
Item 2.
Item 3.
Item 4.

PART II
Item 5.
Item 6.
Item 7.
Item 7A.
Item 8.
Item 9.
Item 9A.
Item 9B.

PART III
Item 10.
Item 11.
Item 12.
Item 13.
Item 14.

PART IV
Item 15.
Item 16.

Table of Contents

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

  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

  Exhibits, Financial Statement Schedules
  Form 10-K Summary
  Signatures

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Special note regarding forward-looking statements

This Annual Report on Form 10-K (this “Annual Report”) contains forward-looking statements that involve risks and uncertainties. All statements other
than  statements  of  historical  facts  contained  in  this  Annual  Report  are  forward-looking  statements.  In  some  cases,  you  can  identify  forward-looking
statements  by  words  such  as  “anticipate,”  “believe,”  “contemplate,”  “continue,”  “could,”  “estimate,”  “expect,”  “intend,”  “may,”  “plan,”  “potential,”
“predict,” “project,” “seek,” “should,” “target,” “will,” “would,” or the negative of these words or other comparable terminology.

These forward-looking statements are subject to a number of risks, uncertainties and assumptions, including those described in the “Risk Factors” section
and elsewhere in this Annual Report. Moreover, we operate in a very competitive and rapidly changing environment, and new risks emerge from time to
time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor,
or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. In light of
these risks, uncertainties and assumptions, the forward-looking events and circumstances discussed in this Annual Report may not occur and actual results
could differ materially and adversely from those anticipated or implied in the forward-looking statements.

You should not rely upon forward-looking statements as predictions of future events. Although we believe that the expectations reflected in the forward-
looking statements are reasonable, we cannot guarantee that the future results, levels of activity, performance or events and circumstances reflected in the
forward-looking statements will be achieved or occur. Such forward looking statements speak only as of the date of this Annual Report.  Except as may be
required by law, we undertake no obligation to update any forward-looking statements to reflect events or circumstances after the date of such statements.

You should read this Annual Report and the documents that we have filed as exhibits to this Annual Report with the understanding that our actual future
results, levels of activity, performance, and events and circumstances may be materially different from what we expect.

This Annual Report includes statistical and other industry and market data that we obtained from industry publications and research, surveys and studies
conducted by third parties. Industry publications and third-party research, surveys and studies generally indicate that their information has been obtained
from sources believed to be reliable, although they do not guarantee the accuracy or completeness of such information.

1

 
PART I

Item 1. Business.

Overview

We are a commercial-stage biopharmaceutical company focused on the development and commercialization of novel small molecule therapeutics for the
treatment  of  patients  with  cancer.  Our  first  FDA-approved  product,  COSELA™  (trilaciclib)  is  the  first  and  only  therapy  indicated  to  proactively  help
protect  bone  marrow  from  the  damage  of  chemotherapy  (myeloprotection)  and  is  the  first  innovation  in  managing  myelosuppression  in  decades.  Our
therapeutic candidates were developed from a technology platform that targets key cellular pathways including transient arrest of the cell cycle at the G1
phase, prior to the beginning of DNA replication. Our therapies are designed to improve outcomes for patients across multiple oncology indications.

We were incorporated under the laws of the State of Delaware in May 2008 under the name “G-Zero Therapeutics, Inc.” In September 2012, we changed
our name to “G1 Therapeutics, Inc.” Our principal executive offices are located at 700 Park Offices Drive, Suite 200, Research Triangle Park, NC 27709,
and our telephone number is (919) 213-9835. 

We manage our operations as a single segment for the purposes of assessing performance and making operating decisions. All of our assets are held in the
United States.

“G1 Therapeutics,” “COSELA” and our logo are our trademarks. All other service marks, trademarks and trade names appearing in this Annual Report are
the  property  of  their  respective  owners.  We  do  not  intend  our  use  or  display  of  other  companies’  trade  names,  trademarks  or  service  marks  to  imply  a
relationship with, or endorsement or sponsorship of us by, these other companies. We shall use “COSELA” when we are referring to our FDA approved
drug and “trilaciclib” when we are referring to our development of COSELA for additional indications. “Myeloprotection” is synonymous with the term
“myelopreservation.”  We used “myelopreservation” in our communications and disclosures prior to the FDA’s approval of trilaciclib (COSELA) and we
will use the term “myeloprotection” following FDA’s approval in order to align more closely with the FDA’s terminology.

Product Pipeline

We are advancing two clinical stage programs. Our lead compound trilaciclib is a first-in-class therapy designed to improve outcomes for patients who are
treated with chemotherapy. Trilaciclib helps protect HSPCs in bone marrow by transiently inhibiting CDK4/6 leading to a temporary arrest of susceptible
host cells during chemotherapy in ES-SCLC patients.  This reduces the duration and severity of neutropenia and other myelosuppressive consequences of
chemotherapy.  In  addition,  trilaciclib  activates  and  enhances  the  immune  system  response  driving  increased  anti-tumor  efficacy,  which  we  continue  to
explore in clinical trials.

On February 12, 2021, COSELA™ (trilaciclib) for injection was approved by the U.S. Food and Drug Administration (FDA) to decrease the incidence of
chemotherapy-induced  myelosuppression  in  adult  patients  when  administered  prior  to  a  platinum/etoposide-containing  regimen  or  topotecan-containing
regimen  for  extensive  stage  small  cell  lung  cancer  (ES-SCLC).  We  are  also  exploring  potential  use  of  trilaciclib  in  a  variety  of  other  tumors,  including
colorectal cancer (CRC), triple negative breast cancer (TNBC), neoadjuvant breast cancer, non-small cell lung cancer (NSCLC), and bladder cancer.

Rintodestrant  is  an  oral  selective  estrogen  receptor  degrader  (SERD)  which  we  are  developing  as  a  monotherapy  and  in  combination  with  a  CDK4/6
inhibitor, Ibrance® (palbociclib), for the treatment of ER+, HER2- breast cancer.   We will evaluate partnering options for rintodestrant following a data
read-out from our ongoing combination study with palbociclib.

In 2020, we out-licensed global rights to lerociclib, an internally discovered and differentiated oral CDK4/6 inhibitor designed to enable more effective
combination treatment strategies across multiple oncology indications. We also have intellectual property focused on cyclin-dependent kinase targets.

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G1 Therapeutics Product Pipeline

Candidate

trilaciclib

rintodestrant

Indication
Extensive-stage small
cell lung cancer (ES-
SCLC)

Status

 COSELA (trilaciclib) 
Approved by FDA

Colorectal cancer
(CRC)

 Registrational trial
(initiated in 2020)

1L/2L Triple negative
breast cancer (TNBC)

 Registrational trial
(initiating in 1H 2021)

Neoadjuvant breast

cancer

(I-SPY 2 TRIAL™)

 Phase 2 trial
(initiated in 2020)

2L/3L Non-small cell
lung cancer (NSCLC)

 Phase 2 trial
(initiating in 1H 2021)

1L Bladder cancer

ER+, HER2- breast
cancer

Phase 2 trial
(initiating in 1H 2021)
 Phase 2a
(initiated in 2019)            

lerociclib

Multiple

Clinical Stage

Development & Commercialization Rights
(all indications)

G1 Therapeutics owns all global development and commercial
rights across all indications, with the exception of Greater China
(Simcere)

G1 - Global

EQRx: Global and Japan (ex. Asia Pacific)

Genor Biopharma: Asia Pacific (ex. Japan)

Trilaciclib helps protect HSPCs in bone marrow by transiently inhibiting CDK4/6 leading to a temporary arrest of susceptible host cells during
chemotherapy  in  ES-SCLC  patients.    This  reduces  the  duration  and  severity  of  neutropenia  and  other  myelosuppressive  consequences  of
chemotherapy. In addition, trilaciclib has demonstrated immune system response enhancement which we are exploring in clinical trials to show
increased anti-tumor efficacy.

Trilaciclib,  a  transient  IV  CDK4/6  inhibitor,  is  a  novel  therapeutic  approach  which  is  given  before  chemotherapy  that  temporarily  blocks  progression
through  the  cell  cycle.  This  provides  two  benefits.  First,  it  proactively  helps  protect  HSPCs  in  bone  marrow  leading  to  preservation  of  neutrophils,
erythrocytes, and platelets (called myeloprotection) which reduces the occurrences and severity of neutropenia and other myelosuppressive consequences
of chemotherapy. This myeloprotection benefit has been conclusively proven in double-blind placebo-controlled clinical trials in extensive-stage small cell
lung  cancer.  Second,  trilaciclib  activates  and  enhances  the  immune  system  response  driving  increased  anti-tumor  efficacy,  which  we  are  exploring  in
clinical  trials.  Our  randomized  clinical  trials  have  demonstrated  that  trilaciclib  can  provide  myeloprotection  benefits  and  has  the  potential  to  improve
survival as a result of its anti-tumor efficacy benefit.

Chemotherapy is an effective and important weapon against cancer. However, chemotherapy does not differentiate between healthy cells and cancer cells
and kills both, including important stem cells in the bone marrow (hematopoietic stem and progenitor cells, or HSPCs) that produce white blood cells, red
blood cells and platelets, and immune cells. This chemotherapy-induced bone marrow damage is known as myelosuppression. When white blood cells, red
blood cells and platelets become depleted, chemotherapy patients are at increased risk of infection, experience anemia and fatigue, and are at increased risk
of bleeding. Myelosuppression often requires the administration of rescue interventions such as growth factors and blood or platelet transfusions and may
also result in chemotherapy dose delays and reductions. Immune cell damage may decrease the ability of the immune system to fight the cancer, as well as
infection.

On February 12, 2021, COSELA was approved by the FDA to decrease the incidence of chemotherapy-induced myelosuppression in adult patients when
administered prior to a platinum/etoposide-containing regimen or topotecan-containing regimen for ES-SCLC. We expect COSELA to be commercially
available through G1’s specialty distributor network in early March. COSELA is administered intravenously as a 30-minute infusion completed within 4
hours  prior  to  the  start  of  chemotherapy  on  each  day  that  chemotherapy  is  administered,  and  is  the  first  and  only  FDA-approved  therapy  that  helps
proactively deliver multilineage myeloprotection to patients with extensive-stage small cell lung cancer being treated with chemotherapy. The approval of
COSELA is based on data from three randomized, placebo-controlled trials that showed patients receiving COSELA prior to chemotherapy had clinically
meaningful and

3

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
statistically  significant  reduction  in  the  duration  and  severity  of  neutropenia,  reduction  of  red  blood  cell  transfusions,  as  well  as  improvements  in  other
myeloprotection measures, compared to patients receiving chemotherapy without COSELA.

In June 2020, we entered into a three-year co-promotion agreement for COSELA in the United States and Puerto Rico with Boehringer Ingelheim. The
agreement  is  limited  to  support  for  SCLC.  Under  the  terms  of  the  agreement,  we  will  book  revenue  in  the  United  States  and  Puerto  Rico  and  retain
development and commercialization rights to COSELA. We will lead marketing, market access and medical engagement initiatives; Boehringer Ingelheim
will lead sales force engagements.

In August 2020, we entered into an exclusive license agreement with Nanjing Simcere Dongyuan Pharmaceutical Co., Ltd (“Simcere”) for development
and commercialization rights for trilaciclib in all indications in Greater China (mainland China, Hong Kong, Macau and Taiwan). Under the terms of the
agreement, we received an upfront payment of $14.0 million and will be eligible to receive up to $156.0 million in development and commercial milestone
payments. Simcere will also pay us tiered low double-digit royalties on annual net sales of trilaciclib in Greater China. As part of the agreement, Simcere
will  participate  in  global  clinical  trials  of  trilaciclib  and  the  companies  will  be  responsible  for  all  development  and  commercialization  costs  in  their
respective territories.

We  are  also  executing  on  our  tumor-agnostic  strategy  to  evaluate  the  potential  benefits  of  trilaciclib  to  patients  with  other  tumors  that  are  treated  with
chemotherapy. We have two on-going trials: a pivotal 1L colorectal cancer (CRC) study and a Phase 2 neoadjuvant breast cancer (I-SPY 2). We intend to
initiate  another  pivotal  study  in  mTNBC  (including  1L  and  2L  patients)  and  have  two  additional  Phase  2  studies:  a  2L/3L  non-small  cell  lung  cancer
(NSCLC)  trial  in  post-checkpoint  patients  and  a  1L  bladder  cancer  trial  with  chemotherapy  and  a  checkpoint  inhibitor.  These  studies  across  treatment
settings and tumor types will evaluate trilaciclib’s dual benefits in both multi-lineage myeloprotection and anti-tumor efficacy.

Pivotal 1L Colorectal Cancer (CRC)

We enrolled the first patient in a randomized, placebo-controlled registrational trial of trilaciclib in colorectal cancer (CRC) in the first quarter of 2021.
CRC is a large indication commonly treated with 5-FU-based chemotherapy. We have extensive preclinical research demonstrating myeloprotection and
potential efficacy in 5-FU-based regimens with trilaciclib. Our ongoing 1L CRC trial is with FOLFOXIRI, which is the most efficacious chemo regimen in
this  tumor  but  is  also  highly  myelosuppressive.  By  reducing  the  toxicity  of  FOLFOXIRI,  we  believe  we  will  significantly  expand  its  use  in  CRC  and
potentially improve overall survival.

1L/2L Metastatic Triple-Negative Breast Cancer (mTNBC)

In 2017, we initiated a randomized Phase 2 trial of trilaciclib in patients with first-/second-/third-line metastatic triple-negative breast cancer (mTNBC)
receiving  gemcitabine  and  carboplatin  (GC).    Enrollment  was  completed  in  the  second  quarter  of  2018.  At  the  2018  San  Antonio  Breast  Cancer
Symposium  (SABCS),  we  presented  preliminary  trilaciclib  data  demonstrating  improvement  in  progression-free  survival  (PFS).  In  September  2019,  we
presented  updated  data  demonstrating  significant  improvement  in  overall  survival  (OS)  (preliminary).  Though  the  trial  did  not  meet  the  primary
myeloprotection  endpoints,  patients  receiving  trilaciclib  were  able  to  receive  approximately  50%  more  cumulative  dose  of  chemotherapy,  without
additional  hematological  toxicity.  These  data  were  presented  at  the  2019  ESMO  Congress,  and  were  concurrently  published  in  The  Lancet  Oncology.
Updated safety and efficacy data from this trial were presented at the 2020 SABCS. Data included that compared to GC alone (Group 1), OS was improved
in  both  trilaciclib  arms  (Groups  2  and  3)  (Group  2:  HR=0.31,  p=0.0016;  Group  3:  HR=0.40,  p=0.0004).  Median  OS  was  12.6  months  in  Group  1,  not
reached for Group 2, and 17.8 months in Group 3. The median OS for Groups 2 and 3 combined was 19.8 months (HR=0.37, p<0.0001). OS findings in
patients  receiving  trilaciclib  were  consistent  with  previously  reported  data  from  this  trial.  The  median  OS  for  GC  alone  (Group  1,  12.6  months)  was
consistent with the previous trial findings and historical data. Patients with both PD-L1-positive and PD-L1-negative tumors treated with trilaciclib and GC
demonstrated improvement in OS compared to patients receiving GC alone, with the PD-L1-positive subset achieving statistically significant improvement.
Further,  data  from  T  cell  clonality  analyses  suggest  that  administering  trilaciclib  prior  to  chemotherapy  enhanced  immune  system  function.  These
compelling Phase 2 data supported the potential effectiveness of trilaciclib in mTNBC. We expect to initiate a randomized, placebo-controlled registrational
trial in 1L patients and 2L post-checkpoint patients with mTNBC in the first half of 2021. TNBC is a difficult and aggressive tumor to treat with many new
therapies only effective in certain subpopulations.

Phase 2 Neoadjuvant Breast Cancer (I-SPY 2)

In  January  2020,  we  announced  that  trilaciclib  will  be  included  in  a  new  randomized,  investigational  treatment  arm  for  the  ongoing  Phase  2  I-SPY  2
TRIAL™ for neoadjuvant treatment of locally advanced breast cancer. The trial, initiated in the second quarter of 2020 and run by the non-profit Quantum
Leap  Healthcare  Collaborative,  is  designed  to  rapidly  screen  promising  experimental  treatments  and  identify  those  most  effective  in  specific  patient
subgroups based on molecular characteristics (biomarker signatures). Trilaciclib will be evaluated across all high-risk, early-stage breast cancer subtypes
(including  HR+,  HER2+  and  triple-negative  breast  cancer).  All  patients  will  receive  standard  neoadjuvant  treatment,  including  chemotherapy  (and  anti-
HER2 Mab for HER2+ disease)

4

 
 
 
prior to surgical resection of breast tissue. Biomarker  data  to  evaluate  the  impact  of  trilaciclib  on  the  tumor  immune  microenvironment,  as  well  as  pre-
specified endpoints to evaluate anti-tumor efficacy and myeloprotection will be collected.

2L/3L Non-Small Cell Lung Cancer (NSCLC)

Evaluating  trilaciclib  in  a  Phase  2  2L/3L  NSCLC  (post-checkpoint  setting)  will  provide  us  with  meaningful  data  in  an  area  of  high  unmet  with  a  large
patient population. NSCLC is a known immunogenic tumor which may provide trilaciclib an opportunity to increase anti-tumor efficacy through its distinct
mechanism even after checkpoint inhibitors have failed. There is also a high complementary commercial fit with our initial SCLC indication. We expect to
initiate this trial in the first half of 2021.

1L Bladder Cancer

We intend to initiate a 1L bladder cancer trial in the first half of 2021 with chemotherapy and a checkpoint inhibitor. There is a strong rationale to evaluate
trilaciclib in 1L bladder cancer: (1) bladder is a known immunogenic tumor proven to be responsive to chemotherapy; (2) the most common chemotherapy
regimen used in 1L bladder is gemcitabine and platinum, which is similar to the chemotherapy regimen in our TNBC study (gemcitabine and carboplatin)
where we showed significant OS benefits; and (3) we have observed synergistic benefits combining trilaciclib with checkpoints.

Market opportunities for trilaciclib

Cancer is the second leading cause of death in the United States with an estimated 1.8 million new cases and 607,000 deaths in 2020, according to the
American  Cancer  Society.  Chemotherapy  is  the  standard  of  care  treatment  for  multiple  cancers.  We  estimate  that  more  than  one  million  patients  in  the
United States receive chemotherapy annually.

Chemotherapy  has  significant  clinical  utility  and  continues  to  be  the  most  effective  treatment  for  many  cancers.  However,  it  also  damages  HSPCs
(myelosuppression)  and  the  immune  system  (immunosuppression),  leading  to  severe  adverse  effects  and  limiting  anti-tumor  activity.  Chemotherapy-
induced myelosuppression causes abnormally low numbers of red blood cells, or anemia, abnormally low numbers of neutrophils, or neutropenia, and/or
abnormally low numbers of platelets, or thrombocytopenia. The treatment of myelosuppressive side effects of chemotherapy is a large market opportunity.
The only current treatment for chemotherapy-induced myelosuppression are rescue interventions like growth factors and/or transfusions. Two main types of
commercially  available  growth  factors  are:  granulocyte-colony  stimulating  factor,  or  GCSF,  and  erythropoiesis  stimulating  agents,  or  ESAs.  GCSF
increases production of neutrophils in patients to reduce the incidence of infection after chemotherapy. GCSF does not preserve the function of the bone
marrow and immune system from chemotherapy damage. ESAs increase production of red blood cells in patients. Accordingly, ESAs also do not preserve
the function of the bone marrow and immune system from chemotherapy. ESA use in oncology is limited due to a “black box” warning related to death and
serious  cardiovascular  events.  Despite  these  limitations,  we  estimate  that  annual  worldwide  sales  of  growth  factor  support  therapy  in  oncology  to  be
approximately $5 billion.

•

•

Extensive-stage small cell lung cancer (ES-SCLC). According to the American Cancer Society, SCLC accounts for approximately 14% of all
lung cancers. Approximately 30,000 people are treated annually in the United States for ES-SCLC across first line through third line. First-
line  treatment  of  ES-SCLC  in  the  United  States  is  typically  a  chemotherapy  regimen  of  carboplatin  and  etoposide,  which  has  significant
myelosuppressive  side  effects.  Combination  treatment  with  chemotherapy  and  immunotherapy  has  emerged  as  the  standard  of  care  in  the
United States. While these patients often respond to first-line therapy, approximately 90% progress within one year and die within two years.
Five-year  survival  rates  are  less  than  5%  for  patients  with  extensive-stage  SCLC.  Topotecan,  approved  for  SCLC  in  2007,  is  a  standard
treatment used in the second/third line setting and is highly myelosuppressive. Based on market research we have completed to date, many
physicians  see  proactive  myeloprotection  as  a  better  approach  for  patients  and  would  incorporate  trilaciclib  into  their  SCLC  treatment
regimen. We believe the SCLC opportunity exceeds $500 million in worldwide annual net sales at peak.

Colorectal cancer (CRC). We are evaluating the use of trilaciclib in colorectal cancer in a Phase 3 trial that initiated in the fourth quarter of
2020 and enrolled the first patient in the first quarter of 2021. Globally, more than 500,000 patients are diagnosed with colorectal cancer each
year.  In  the  U.S.,  there  are  nearly  150,000  new  cases  of  colorectal  cancer  diagnosed  each  year.  Chemotherapy  is  the  standard  of  care  for
colorectal cancer, and the majority of patients in the U.S., Europe and Japan receive chemotherapy as part of their treatment regimen.

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•

Breast  cancer.  We  are  evaluating  the  use  of  trilaciclib  in  a  variety  of  breast  cancers,  including  metastatic  triple  negative  breast  cancer
(mTNBC)  and  other  high-risk,  early-stage  breast  cancer  subtypes. According  to  the  World  Health  Organization,  an  estimated  2.1  million
cases of breast cancer are diagnosed annually worldwide. TNBC makes up approximately 15-20% of such diagnosed breast cancers. Because
mTNBC cells lack key growth-signaling receptors, patients do not respond well to medications that block estrogen, progesterone, or HER2
receptors. Instead, treating mTNBC typically involves chemotherapy, radiation, and surgery. In general, survival rates tend to be lower with
mTNBC compared to other forms of breast cancer, and mTNBC is also more likely than some other types of breast cancer to return after it
has been treated, especially in the first few years after treatment.

o We expect to initiate a registrational trial in mTNBC in the first half of 2021. This trial will evaluate trilaciclib in combination with a
chemotherapy  regimen  of  gemcitabine/carboplatin  in  two  separate  cohorts:  1)  as  first-line  treatment  in  170  patients  who  are
checkpoint-naive;  and  2)  as  second-line  treatment  in  70  patients  who  are  checkpoint-failures.  Both  cohorts  are  adequately  and
independently powered.

o

Trilaciclib has been included in a randomized, investigational treatment arm of the ongoing Phase 2 I-SPY 2 TRIAL for neoadjuvant
treatment of locally advanced breast cancer. The study will generate data that will allow us to evaluate trilaciclib in combination with
several broadly-used chemotherapy classes and a range of breast cancer subtypes. Enrollment began in the second quarter of 2020.

• We are also evaluating the use of trilaciclib in bladder cancer and NSCLC, and plan to initiate Phase 2 trials in both indications in the first half of

2021.

o

o

Bladder cancer. There are over 80,000 new cases of bladder cancer diagnosed in the U.S. each year.

Non-small cell lung cancer (NSCLC). According to the American Cancer Society, NSCLC accounts for up to 85% of all lung cancers.

There  have  been  a  number  of  positive  registrational  studies  and  approvals  of  checkpoint  inhibitors  in  combination  with  chemotherapy,  and  these
combination  regimens  are  emerging  as  a  standard  of  care  in  multiple  tumor  types.  Data  from  our  trial  of  trilaciclib  in  combination  with  the  checkpoint
inhibitor  Tecentriq  showed  myeloprotection  benefits  without  impairing  efficacy.  The  Phase  2  bladder  cancer  trial  will  explore  the  use  of  trilaciclib  in
combination with chemotherapy and a checkpoint inhibitor. We believe trilaciclib may improve outcomes for patients receiving either chemotherapy or a
regimen of chemotherapy with an immunotherapy agent.

Advantages of trilaciclib

Trilaciclib  is  a  transient  inhibitor  of  CDK4/6.  The  mechanism  of  action  of  trilaciclib  enables  ES-SCLC  patients  to  better  tolerate  chemotherapy,  helps
protect the immune system from damage, enhances the immune system through transient arrest of proliferation of T lymphocytes, and activates anti-tumor
immunity.  Trilaciclib  has  demonstrated  immune  system  response  enhancement  which  we  are  exploring  in  clinical  trials  to  show  increased  anti-tumor
efficacy.  As  a  result,  we  believe  that  treating  patients  with  trilaciclib  prior  to  the  administration  of  chemotherapy  or  chemotherapy/immunotherapy
regimens may have the following benefits and advantages:

•

•

•

•

•

•

Potential  to  decrease  the  incidence  of  chemotherapy-induced  myelosuppression.  Trilaciclib  has  been  rationally  designed  and  optimized  to
preserve HSPCs from damage by chemotherapy, thereby minimizing cytopenias across neutrophils, red cells, and platelets. Trilaciclib has the
potential to decrease the clinically relevant consequences of these cytopenias and improve patient outcomes.

Potential  to  reduce  chemotherapy  dose-delays  and  dose  reductions.  Chemotherapy-induced  myelosuppression  is  the  major  dose  limiting
toxicity of chemotherapy and can lead to dose reductions and schedule delays that can limit therapeutic benefit. Trilaciclib has been designed
specifically to minimize myelosuppression and has the potential to enable maintenance of the indicated and planned chemotherapeutic dose
and schedule.

Potential  to  improve  the  patient  experience  as  measured  by  validated  Patient  Reported  Outcomes  (PRO)  instruments.  PRO  data  from  our
randomized trials demonstrate that patients receiving trilaciclib report less fatigue and improved physical and functional well-being.

Potential  for  use  with chemotherapy/immune  checkpoint  inhibitors  combinations.  Immune  checkpoint  inhibitors  are  often  combined  with
chemotherapy.  We  have  demonstrated  that  trilaciclib  mitigates  myelosuppression  in  first-line  SCLC  patients  treated  with  the  immune
checkpoint inhibitor Tecentriq and chemotherapy.

Potential  broad  applicability.  We  believe  trilaciclib  has  the  potential  to  benefit  patients  treated  with  multiple  myelosuppressive
chemotherapeutic regimens across a wide range of tumor types.

Convenience of administration. Trilaciclib is designed to be administered via an IV infusion prior to chemotherapy treatment. This dosing
regimen fits with standard clinical practice for chemotherapy administration with or without checkpoint inhibitors.

6

 
 
 
 
 
 
 
 
 
 
 
 
•

•

Potential to reduce the cost of rescue interventions. Chemotherapy-induced myelosuppression leads to severe adverse side effects, such as
fatigue due to anemia, infections due to neutropenia, and bleeding due to thrombocytopenia. These adverse side effects often require costly
rescue interventions such as hospitalizations, transfusions, antibiotic usage and/or treatment with growth factor support. Because trilaciclib
has  been  designed  specifically  to  minimize  myelosuppression,  we  believe  that  it  has  the  potential  to  reduce  these  costs.  The  positive
multilineage myeloprotection data we have reported to date and our market research with payers supports the value proposition of trilaciclib.

Potential to preserve/enhance anti-tumor immunity and prolong OS in certain settings. Chemotherapy can damage the immune system and
impair  anti-tumor  immunity.  Trilaciclib  has  demonstrated  the  potential  to  preserve  and  enhance  immune  system  function  during
chemotherapy. Trilaciclib has the ability to improve anti-tumor efficacy through a combination of three potential factors: (1) myeloprotection
benefits  increasing  patients’  ability  to  receive  more  chemotherapy,  (2)  protection  of  the  immune  system  allowing  it  to  work  after
chemotherapy,  and  (3)  enhancing  anti-tumor  immune  response  by  (a)  reducing  immunosuppressive  Treg  populations,  (b)  activating  T-cell
mediated response, and (c) enhancing tumor antigen presentation. The improvement in OS observed in the randomized trial of TNBC patients
may be due to trilaciclib’s ability to enhance anti-tumor immunity during chemotherapy.

Trilaciclib: preclinical and clinical development

Preclinical development

We  have  published  extensive  biochemical,  cellular  and  in  vivo  data  on  trilaciclib.    Our  preclinical  data  show  that  trilaciclib  can  induce  transient  and
reversible cell-cycle arrest of HSPCs; helps protect HSPCs from damage by chemotherapy; preserve bone marrow and immune system function; improve
CBC  recovery;  helps  protect  from  bone  marrow  exhaustion;  prevent  myeloid  skewing  and  consequent  lymphopenia;  activate  T-cells  in  the  tumor
microenvironment; and enhance chemotherapy and checkpoint inhibitor anti-tumor activity.

Completed Phase 1 clinical trial

In  2015,  we  completed  a  Phase  1  clinical  trial  of  trilaciclib  in  45  healthy  volunteers  in  the  Netherlands.  In  this  trial,  subjects  in  seven  cohorts  were
administered a single ascending dose of trilaciclib between 6 mg/m² and 192 mg/m². The purpose of this trial was to evaluate the safety including dose
limiting toxicities, or DLTs, serious adverse events, or SAEs, adverse events, or AEs, and pharmacokinetics, or PK, and identify a biologically effective
dose of trilaciclib. Published data from this trial demonstrated that trilaciclib was well tolerated, with no DLTs or SAEs reported. These data demonstrated
that the administration of trilaciclib resulted in the robust cell-cycle arrest of HSPCs for at least 32 hours and supported a starting dose of 200 mg/m 2 for
the initial studies in patients.

Completed randomized clinical trials
Trilaciclib (IV CDK4/6 inhibitor):

  Regimen
  +Tecentriq/
carboplatin/
etoposide

  + etoposide/
carboplatin

  + topotecan

  Indications
 1st-line
Small  Cell  Lung  Cancer
(study  1 
in  package
insert)
 1st -line 
Small  Cell  Lung  Cancer
(study  2 
in  package
insert)
 2nd /3rd –line
Small  Cell  Lung  Cancer
(study  3 
in  package
insert)
metastatic  Triple 
Negative Breast Cancer

  Status

COSELA™ (trilaciclib) approved to
decrease the incidence of chemotherapy-
induced myelosuppression in adult
patients when administered prior to a
platinum/etoposide-containing regimen or
topotecan-containing regimen for ES-
SCLC.

   Phase
   2

  Publications
  International Journal of Cancer (Daniel
et al.), December 2020

   1b/2

   1b/2

   2

  Annals of Oncology (Weiss et al.)
August 2019

  Advances in Therapy (Hart et al.),
November 2020

  Lancet Oncology (Tan et al.), September
2019

  +gemcitabine/carboplatin  Phase 3 in 1H 2021

7

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Phase 2 clinical program in SCLC (study 1 in package insert)

Based  on  these  encouraging  preliminary  data,  we  advanced  both  SCLC  trials  into  the  randomized,  placebo-controlled,  double-blind  Phase  2  segment.
Enrollment  in  the  first-line  SCLC  Phase  2  trial  was  completed  in  the  second  quarter  of  2017  and  positive  multilineage  myeloprotection  results  were
reported in March 2018, with additional data reported at the European Society for Medical Oncology (ESMO) 2018 Congress and published in Annals of
Oncology  (Weiss  et al.)  in  2019.  Enrollment  in  the  second-/third-line  SCLC  Phase  2  trial  was  completed  in  the  second  quarter  of  2018,  with  positive
multilineage  myeloprotection  data  reported  in  the  fourth  quarter  of  2018  and  full  data  presented  at  an  oral  session  at  the  American  Society  of  Clinical
Oncology (ASCO) 2019 Annual Meeting. These data were also published in the International Journal of Cancer (Daniel et al.; 2020).

In December 2016, we entered into a non-exclusive agreement with Genentech to evaluate the combination of Genentech's immune checkpoint, anti-PD-L1
antibody Tecentriq with trilaciclib. Our first trial under the agreement is in first-line treatment for patients with extensive stage SCLC receiving carboplatin
and etoposide. We initiated enrollment in this randomized, double-blinded, placebo-controlled Phase 2 trial in the second quarter of 2017. The goals of the
clinical trial are to evaluate the safety, OS, myeloprotection, PK, and anti-tumor activity of trilaciclib in combination with Tecentriq and chemotherapy. We
completed enrollment in the first quarter of 2018. We reported positive multilineage myeloprotection data and preliminary progression free survival (PFS)
in November 2018, and presented updated safety and anti-tumor efficacy data at the 2019 ESMO Congress.

Phase 1b/2 clinical trial in first-line treatment of SCLC (study 2 in package insert)

In 2015, we initiated a Phase 1b/2 clinical trial in first-line extensive-stage SCLC patients across multiple sites in the United States and Europe. The Phase
1b segment of the trial was designed to confirm the trilaciclib dose to be used in the randomized, placebo-controlled Phase 2 segment. The goals of the trial
are to evaluate the safety, myeloprotection, pharmacokinetics, and anti-tumor activity of trilaciclib in combination with the existing first-line chemotherapy
standard  of  care  regimen  of  etoposide  and  carboplatin  and  to  confirm  the  dose  to  be  used  in  future  trials.  All  patients  in  the  Phase  1b  segment  were
administered  three-week  cycles  of  trilaciclib  plus  etoposide/carboplatin,  with  an  estimated  four  to  six  cycles  administered  in  total  per  patient  based  on
historical practice. Trilaciclib was administered as an IV infusion prior to every dose of etoposide/carboplatin.

In the Phase 1b section of this trial, as reported at the American Society of Clinical Oncology meetings in June 2017, we treated 19 patients with multiple
cycles of trilaciclib and chemotherapy and did not have a single episode of febrile neutropenia – one of the most common adverse consequences of these
chemotherapy  regimens.  We  also  observed  a  dose  dependent  reduction  in  grade  3/4  hematologic  adverse  events.    The  results  from  the  Phase  1b  study
support the hypothesis that trilaciclib could ameliorate the significant acute and long-term consequences of chemotherapy-induced myelosuppression by
preserving hematopoietic and immune system function. Based on these results, we initiated the randomized, placebo-controlled Phase 2 segment of the trial
in  fourth-quarter  of  2016  with  a  trilaciclib  dose  of  240  mg/m2  and  completed  enrollment  of  a  total  of  77  patients  in  the  second  quarter  of  2017.    We
reported positive multilineage myeloprotection data from the Phase 2 segment of the trial in March 2018, with additional data from the trial presented at the
2018 ESMO Congress and final data published in Annals of Oncology (Weiss et al.; 2019).

Phase 1b/2 clinical trial in second/third-line treatment of SCLC (study 3 in package insert)

In 2015, we initiated a Phase 1b/2 clinical trial in second/third-line SCLC patients across multiple sites in the United States and Europe. The Phase 1b
segment of the trial was designed to confirm the trilaciclib dose to be used in the randomized, placebo-controlled Phase 2 segment of the trial. The goals of
the  trial  are  to  evaluate  the  safety,  myeloprotection,  PK,  and  anti-tumor  activity  of  trilaciclib  in  combination  with  the  existing  second/third-line
chemotherapy  standard  of  care  regimen  of  topotecan  and  to  confirm  the  dose  to  be  used  in  future  trials.  All  patients  in  the  Phase  1b  segment  were
administered three-week cycles of trilaciclib plus topotecan until the progression of disease. Trilaciclib was administered as an IV infusion prior to every
dose of topotecan. Trilaciclib doses of 200 to 280 mg/m2 and topotecan doses of 0.75 to 1.5 mg/m2 were tested across 7 cohorts in the completed Phase 1b
open-label  segment  of  the  trial.  The  doses  chosen  for  the  randomized,  placebo-controlled  Phase  2  segment  of  this  trial  were  trilaciclib  240  mg/m2  +
topotecan 0.75 mg/m2 and trilaciclib 240 mg/m2 + topotecan 1.5 mg/m2.
In  the  Phase  1b  segment  we  treated  32  patients  with  trilaciclib  and  topotecan  without  any  episodes  of  febrile  neutropenia  or  treatment  related  SAEs.
Preliminary results from Phase 1b were reported at the IASCLC World Conference on Lung Cancer in December 2016. Based on these results, the Phase 2
segment was initiated in the first quarter of 2017 and consists of a double blind-design with 91 patients randomized on a 2:1 basis to receive trilaciclib plus
topotecan, or placebo plus topotecan. We completed enrollment in this trial in the second quarter of 2018 and reported multilineage myeloprotection data in
the fourth quarter of 2018. Safety and anti-tumor efficacy data were presented at the 2019 ASCO Annual Meeting. These data were published in the 2019
Advanced in Therapy (Hart et al.; 2020).

Our  double-blind  placebo  controlled  trials  of  trilaciclib  in  SCLC  trials  demonstrated  that,  when  added  to  standard  of  care  chemotherapy  or
chemotherapy/checkpoint  inhibitor  regimens,  trilaciclib  mitigates  clinically  significant  chemotherapy-induced  myelosuppression.  The  FDA  granted
Breakthrough Therapy Designation for trilaciclib based on myeloprotection data from our three

8

 
 
 
 
randomized,  double-blind,  placebo-controlled  SCLC  clinical  trials,  as  well  as  safety  data  collected  across  all  completed  and  ongoing  clinical  trials.  The
Breakthrough  Therapy  program  is  designed  to  expedite  development  and  review  of  drugs  intended  for  serious  or  life-threatening  conditions.  In  August
2020,  the  FDA  accepted  our  New  Drug  Application  (NDA)  for  trilaciclib  in  SCLC,  granting  Priority  Review  with  a  Prescription  Drug  User  Fee  Act
(PDUFA) action date of February 15, 2021. COSELA™ (trilaciclib) was approved by  the  U.S.  Food  and  Drug  Administration  on  February  12,  2021  to
decrease the incidence of chemotherapy-induced myelosuppression in adult patients when administered prior to a platinum/etoposide-containing regimen or
topotecan-containing  regimen  for  ES-SCLC.  Discussions  with  European  regulatory  authorities  have  indicated  existing  data  is  sufficient  to  support  a
Marketing Authorization Application (MAA) to the European Medicines Agency (EMA) for trilaciclib for myeloprotection in SCLC, which we plan to
pursue in collaboration with a partner.

Phase 2 clinical trial in metastatic Triple Negative Breast Cancer (mTNBC)

In January 2017, we initiated an open label, randomized, Phase 2 trial that enrolled 102 patients with first, second or third-line mTNBC across multiple
sites in the United States and Europe. The goals of the clinical trial are to evaluate the safety, myeloprotection, PK, and anti-tumor activity of trilaciclib in
combination  with  the  existing  chemotherapy  standard  of  care  regimen  of  gemcitabine  and  carboplatin  (GC).  We  completed  enrollment  in  the  second-
quarter  of  2018.  At  the  December  2018  SABCS,  we  presented  preliminary  data  demonstrating  improvement  in  progression-free  survival  (PFS).  We
presented  additional  safety  and  anti-tumor  efficacy  data  at  the  2019  ESMO  Congress.  The  results  of  the  trial  demonstrated  significant  improvement  in
overall survival (OS) (preliminary). Though the trial did not meet the primary myeloprotection endpoint, patients receiving trilaciclib were able to receive
~50% more cycles of chemo, without additional hematological toxicity. These data were presented at the 2019 ESMO Congress and concurrently published
in  The  Lancet  Oncology  (Tan  et  al.;  2019).  Updated  safety  and  efficacy  data  from  this  trial  were  presented  at  the  2020  SABCS.  Data  included  that
compared  to  GC  alone  (Group  1),  OS  was  improved  in  both  trilaciclib  arms  (Groups  2  and  3)  (Group  2:  HR=0.31,  p=0.0016;  Group  3:  HR=0.40,
p=0.0004). Median OS was 12.6 months in Group 1, not reached for Group 2, and 17.8 months in Group 3. The median OS for Groups 2 and 3 combined
was  19.8  months  (HR=0.37,  p<0.0001).  OS  findings  in  patients  receiving  trilaciclib  were  consistent  with  previously  reported  data  from  this  trial.  The
median OS for GC alone (Group 1, 12.6 months) was consistent with the previous trial findings and historical data. Patients with both PD-L1-positive and
PD-L1-negative  tumors  treated  with  trilaciclib  and  GC  demonstrated  improvement  in  OS  compared  to  patients  receiving  GC  alone,  with  the  PD-L1-
positive subset achieving statistically significant improvement. Further, data from T cell clonality analyses suggest that administering trilaciclib prior to
chemotherapy enhanced immune system function.

Two ongoing clinical trials
Trilaciclib (IV CDK4/6 inhibitor)

Phase 3 clinical trial in first line Colorectal Cancer

We initiated this trial in the fourth quarter of 2020, and in January of 2021 we enrolled the first patient into our pivotal trial in first line colorectal cancer.
CRC is a large indication commonly treated with 5-FU-based chemotherapy. We have extensive preclinical research demonstrating myeloprotection and
potential efficacy in 5-FU-based regimens with trilaciclib. The Phase 3 trial is being conducted across multiple sites in the United States and Europe. The
study will evaluate the safety myeloprotection and antitumor efficacy of trilaciclib in combination with FOLFOXFIRI, the most efficacious chemotherapy
regimen in CRC. The primary endpoint is myeloprotection; secondary endpoints include progression-free survival (PFS) / overall survival (OS), and patient
reported outcomes (PRO). We expect to enroll approximately 300 participants.

Phase 2 clinical trial in neoadjuvant Breast Cancer (I-SPY 2 Trial)

In January 2020, we announced that trilaciclib would be evaluated in a new randomized investigational treatment arm of the ongoing consortium I-SPY 2
trial for neoadjuvant treatment of locally advanced breast cancer. The neoadjuvant I-SPY 2 trial will generate myeloprotection and anti-tumor efficacy data
across the different subtypes of breast cancer. This trial is a standing Phase 2 randomized, controlled multicenter trial with adaptive randomization design to
rapidly screen and identify promising new treatments in specific subgroups of adults with newly diagnosed high risk locally-active breast cancer (Stage
II/III). Trilaciclib is being evaluated across all high-risk, early-stage breast cancer subtypes (including HR+, HER2+ and triple-negative breast cancer). All
patients will receive standard neoadjuvant treatment, including chemotherapy (and anti-HER2 Mab for HER2+ disease) prior to surgical resection of breast
tissue.

9

 
 
 
 
Clinical trials expected to initiate in 2021
Trilaciclib (IV CDK4/6 inhibitor)

Indications

Regimen

Phase

Status

1st line           
Triple Negative Breast Cancer

2nd line           
Triple Negative Breast Cancer

+ gemcitabine and
carboplatin
(checkpoint-naïve)

+ gemcitabine and
carboplatin (post-
checkpoint)

Phase 3

  Expected 1H 2021initiation

Phase 3

  Expected 1H 2021initiation

2nd / 3rd line             
Non-Small Cell Lung Cancer

+ docetaxel (post-
checkpoint)

  Phase 2

  Expected 1H 2021initiation

1st line             
Bladder Cancer

+ gemcitabine and
platinum (combo
with a checkpoint
inhibitor)

  Phase 2

  Expected 1H 2021initiation

Trilaciclib: regulatory status

COSELA for injection was approved by the FDA in February 2021 to decrease the incidence of chemotherapy-induced myelosuppression in adult patients
when  administered  prior  to  a  platinum/etoposide-containing  regimen  or  topotecan-containing  regimen  for  extensive-stage  small  cell  lung  cancer  (ES-
SCLC).  The  approval  was  based  on  three  SCLC  trials  demonstrating  that  trilaciclib,  when  added  to  standard  of  care  chemotherapy  or
chemotherapy/checkpoint  inhibitor  regimens,  mitigates  clinically  significant  chemotherapy-induced  myelosuppression.  Discussions  with  European
regulatory authorities have indicated existing data is sufficient to support an MAA to the EMA for trilaciclib for myeloprotection in ES-SCLC.

G1 received Breakthrough Therapy Designation from the FDA in 2019 based on positive myeloprotection data in small cell lung cancer patients from three
randomized  Phase  2  clinical  trials.  As  is  common  with  Breakthrough-designated  products  that  receive  priority  review,  G1  will  conduct  certain  post-
marketing  activities,  including  in  vitro  drug-drug  interaction  and  metabolism  studies,  and  a  clinical  trial  to  assess  impact  of  trilaciclib  on  disease
progression  or  survival  in  patients  with  ES-SCLC  with  chemotherapy-induced  myelosuppression  treated  with  a  platinum/etoposide-containing  or
topotecan-containing regimen with at least a two year follow up. G1 intends to initiate the post-approval clinical trial in 2022.

Rintodestrant: Our differentiated oral SERD

Rintodestrant is an oral SERD which we are developing as a monotherapy and in combination with a CDK4/6 inhibitor, Ibrance® (palbociclib), for the
treatment of ER+, HER2- breast cancer. Based on compelling preclinical efficacy and safety data, we filed an Investigational New Drug application (IND)
with the FDA in the fourth quarter of 2017. In 2018, we initiated a Phase 1 (dose escalation/dose expansion) clinical trial in ER+, HER2- breast cancer.
Preliminary  data  from  the  Phase  1b  portion  of  this  trial  were  presented  at  the  2019  ESMO  Congress,  showing  that  rintodestrant  was  well  tolerated  and
demonstrated evidence of anti-tumor activity in heavily pre-treated patients. The mature monotherapy data were presented at the 2020 SABCS, confirming
the safety and efficacy results of the preliminary analysis. Based on those results we advanced an 800 mg dose of rintodestrant into a 40-patient Phase 2
combination  trial  with  palbociclib,  a  CDK4/6  inhibitor.  We  completed  enrollment  of  patients  in  this  trial  in  October  2020  and  expect  to  disclose  initial
safety and efficacy data in the second quarter of 2021. Palbociclib is being provided under a non-exclusive clinical supply agreement that we signed with
Pfizer in February 2020. We will evaluate partnering options for rintodestrant following the data read-out from our combination study.

Market opportunity for rintodestrant

Breast cancer accounts for 30% of all female cancers in the United States. The major cause of death from breast cancer is metastases, and approximately
30% of early-stage patients develop metastatic disease. Approximately 65% of breast cancers are ER+ and depend on estrogen signaling for growth and
survival  of  the  malignant  cells.  Patients  with  ER+  breast  cancers  are  typically  treated  with  endocrine  therapies  such  as  aromatase  inhibitors,  or  AIs,
selective estrogen receptor modulators, or SERMs, and SERDs. AIs, which

10

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
block  the  generation  of  estrogen,  and  SERMs,  which  selectively  inhibit  an  ER’s  ability  to  bind  estrogen,  both  block  ER-dependent  signaling  but  leave
functional ERs present in breast cancer cells. For this reason, although AIs and SERMs are effective treatments for some breast cancers, many patients
acquire resistance to them by developing the ability to signal through the ER in a ligand-independent manner. In contrast, SERDs are a class of endocrine
therapies  that  directly  induce  ER  degradation.  Therefore,  it  is  believed  that  SERDs  have  the  potential  to  treat  ER+  tumors  without  allowing  ligand-
independent resistance to develop, and to act on AI- and SERM-resistant ER-positive tumors. Currently only one SERD, fulvestrant, is approved for the
treatment  of  ER+  metastatic  breast  cancer.  Randomized  clinical  trials  have  demonstrated  superior  anti-tumor  efficacy  of  fulvestrant  versus  aromatase
inhibitors.

Fulvestrant is administered as an IM injection, and requires a loading dose during the first month of treatment. This means it is typically given on days 1,
15, and 29 of treatment and then once monthly thereafter. Each treatment typically consists of two injections, one into each buttock. Injection site reactions
are  common,  occurring  in  approximately  10%  of  patients.  Injection  site  related  events  including  sciatica,  neuralgia,  neuropathic  pain,  and  peripheral
neuropathy have been reported. Other frequently reported adverse reactions with fulvestrant include nausea (9.7%) and bone pain (9.4%).

While  fulvestrant  has  demonstrated  significant  benefit  to  patients  in  the  metastatic  setting,  the  intramuscular  injections  have  precluded  its  use  in  the
adjuvant  setting.  Given  the  validated  MOA  of  a  SERD,  and  demonstration  of  superior  efficacy  to  aromatase  inhibitors,  there  is  significant  potential  to
improve outcomes for patients being treated in the adjuvant setting.  Consequently, there are several oral SERDs in early clinical development, though no
one candidate has emerged as a clear front runner as an oral alternative to fulvestrant based on early results.

Advantages of rintodestrant

We believe that rintodestrant has the following potential advantages:

•

•

•

•

Higher potency. In preclinical models of ER+, HER2- breast cancer, rintodestrant is more potent than fulvestrant in binding and degrading the
ER and inhibiting cell growth.

Improved safety and tolerability. Early clinical data demonstrate that rintodestrant was well tolerated with a low incidence of mostly Grade 1
or Grade 2 adverse effects, and no severe adverse events. No ocular toxicity or bradycardia was observed.

Ease of administration. The only approved SERD, fulvestrant, is required to be given via IM injection. We have designed rintodestrant to be
administered orally.

Potential  for  usage  in  the  adjuvant  setting.    Rintodestrant  has  the  potential  to  offer  superior  efficacy  to  currently  available  anti-estrogen
therapies in the adjuvant setting.

Rintodestrant: Preclinical and clinical development

We have presented extensive biochemical, cellular and in vivo data on rintodestrant demonstrating that it: has drug-like properties, is highly potent, is active
on ER mutant receptors, is highly selective, leads to complete ER degradation, demonstrated a favorable safety profile, and has oral efficacy.

We initiated a Phase 1b (dose escalation/dose expansion) clinical trial in 2018 with the goal of evaluating the safety, tolerability, and PK of the drug in
breast cancer patients. Preliminary Phase 1 data were presented at the 2019 ESMO Congress. In the trial, rintodestrant was well tolerated and demonstrated
evidence of anti-tumor activity in heavily pre-treated patients. The mature monotherapy data were presented at the 2020 SABCS, confirming the safety and
efficacy results of the preliminary analysis.

Based on those results we advanced an 800 mg dose of rintodestrant into a 40-patient Phase 2 combination trial with palbociclib, a CDK4/6 inhibitor. We
completed enrollment of patients in this trial in October 2020 and expect to disclose initial safety and efficacy data in the second quarter of 2021. We will
evaluate partnering options for rintodestrant following the data read-out from our combination study. Palbociclib is being provided under a non-exclusive
clinical supply agreement that we signed with Pfizer in February 2020.

Lerociclib: Our differentiated oral CDK4/6 inhibitor for patients with CDK4/6-dependent tumors

Lerociclib is a differentiated oral CDK4/6 inhibitor being developed for use in combination with other targeted therapies in multiple oncology indications.
In 2020, we entered into separate, exclusive agreements with EQRx, Inc. (rights for U.S., Europe, Japan and all markets outside Asia-Pacific) and Genor
Biopharma Co. Inc. (rights for Asia-Pacific, excluding Japan) for the development and commercialization of lerociclib in all indications. Combined, these
agreements provided $26.0 million in upfront payments, along with sales-based royalties and the opportunity for up to $330.0 million in potential milestone
payments. EQRx, Inc. and Genor Biopharma Co. Inc. are responsible for all costs related to the development and commercialization of lerociclib in their
respective territories.

11

 
 
 
 
 
 
Our Business Strategy

Our goal is to be a leader in the discovery and development of novel treatments that improve outcomes for people with cancer. Our strategy includes the
following key components:

•

•

•

•

Commercialize COSELA™ (trilaciclib) for ES-SCLC in the U.S. and establish as the standard of care. COSELA (trilaciclib) for Injection
was  approved  by  the  FDA  in  February  2021  decrease  the  incidence  of  chemotherapy-induced  myelosuppression  in  adult  patients  when
administered  prior  to  a  platinum/etoposide-containing  regimen  or  topotecan-containing  regimen  for  extensive-stage  small  cell  lung  cancer
(ES-SCLC). Our commercial launch is underway. We are exploring partnership opportunities to commercialize trilaciclib ex-US.

Maximize long-term value of trilaciclib by executing a robust development plan across multiple indications. We believe that trilaciclib has
the potential to be used to treat patients receiving myelosuppressive chemotherapy across multiple oncology indications.

Evaluate  partnership  options  for  rintodestrant  following  Phase  2  trial  in  combination  with  CDK4/6  inhibitor.  Our  short-term  goal  is  to
generate  additional  clinical  data  to  demonstrate  the  safety  and  efficacy  of  rintodestrant  in  combination  with  palbociclib  and  evaluate
partnership opportunities upon data read-out.

Continue  to  manage  capital  efficiently.  We  believe  our  current  cash  on  hand  and  access  to  our  debt  facility  provides  cash  runway  into
2023.  We will continue to efficiently execute our development plan and look to leverage co-development opportunities with our partners.

Commercialization

In  February  2021,  the  U.S.  Food  and  Drug  Administration  (FDA)  approved  COSELA  (trilaciclib)  to  decrease  the  incidence  of  chemotherapy-induced
myelosuppression  in  adult  patients  when  administered  prior  to  a  platinum/etoposide-containing  regimen  or  topotecan-containing  regimen  for  extensive-
stage small cell lung cancer (ES-SCLC). The commercial launch of COSELA is being supported by our sales collaboration with Boehringer Ingelheim.  G1
Therapeutics is managing all marketing, market access and clinical nurse educator functions, as well as product distribution. The G1 to One program will
serve as a patient hub and provide patient and healthcare provider services. COSELA is due to be commercially available in the coming weeks.

We  have  been  using  branded  COSELA  marketing  materials  to  actively  promote  COSELA  since  approval  and  supporting  COSELA  use  to  doctors,
oncology nurses, and payors. Our entire field force is currently communicating the advantages of COSELA, with materials in hand and with COSELA to
be in channel in early March 2021, ready to improve the chemotherapy experience of ES-SCLC patients receiving chemo.

We  plan  to  globally  commercialize  our  product  candidates  through  the  establishment  of  collaboration  agreements  with  global  and/or  regional
pharmaceutical  companies  to  leverage  our  and  their  development  and  commercialization  infrastructures  and  capabilities,  enabling  us  to  cost-effectively
maximize the global commercial opportunities of our product candidates.

Manufacturing

We do not own or operate, and currently have no plans to establish any manufacturing facilities. We rely, and expect to continue to rely, on third parties
(contract  manufacturing  organizations,  or  CMOs)  for  the  manufacture  of  our  product  candidates.  To  date,  we  have  obtained  drug  substances  and  drug
products  for  trilaciclib,  rintodestrant  and  lerociclib  for  our  preclinical  studies  and  clinical  trials  from  multiple  third-party  manufacturers.  Redundant
suppliers are in place for some of our drug substances and drug products.  As development proceeds for our product candidates, we will evaluate qualifying
additional redundant manufacturers for drug substances and drug products.

Although we are reliant on third parties to manufacture our product candidates, we have personnel with extensive manufacturing experience to oversee the
relationships with our CMOs. CMOs are subject to extensive governmental regulations and we depend on them to manufacture our product candidates in
accordance with current good manufacturing practices, or cGMP. We have an established quality assurance program to ensure that the CMOs involved in
the manufacture of product candidates do so in accordance with cGMP and other applicable U.S. and foreign regulations. We believe that our current CMO
network complies with such regulations.

Competition

The development and commercialization of new drug therapies is highly competitive. We will face competition with respect to all therapeutics we may
develop or commercialize in the future from pharmaceutical and biotechnology companies worldwide. Any drug candidates we successfully develop and
commercialize  will  compete  with  currently  marketed  drugs  and  therapies  used  for  treatment  of  the  same  indications,  and  potentially  with  product
candidates  currently  in  development  for  the  same  indications.  Many  of  the  entities  marketing  or  developing  potentially  competing  products  have
significantly greater financial resources and expertise than we do in research and development, manufacturing, preclinical testing, conducting clinical trials,
obtaining regulatory approvals and marketing. We believe the key competitive factors affecting the success of any approved product will be its efficacy,
safety profile, price,

12

 
 
 
 
 
 
 
convenience of administration, and level of promotional activity. Accordingly, our commercial opportunity will be reduced or eliminated if our competitors
develop and commercialize products that are more effective, have fewer side effects, are more convenient or are less expensive than any products that we
may develop.

COSELA™ is the first approved therapy designed and optimized to help protect HSPCs and immune system function from damage by chemotherapy. We
believe administering trilaciclib with the current standard of care may minimize chemotherapy-induced myelosuppression, including the following adverse
side effects: fatigue due to anemia; infections due to neutropenia; and bleeding due to thrombocytopenia. Currently, these adverse side effects often require
costly rescue interventions such as hospitalizations, transfusions, antibiotic usage and/or treatment with growth factor support. Trilaciclib may reduce the
need to administer the existing rescue growth factor support treatments, including Neulasta® (pegfigrastim), Neupogen® (filgrastim), Procrit® (epoeitin
alpha),  and  Aranesp®  (darbepoetin  alfa)  as  well  as  biosimilars  of  these  products.  In  addition,  trilaciclib  may  compete  with  multiple  approved  drugs  or
drugs that may be approved in the future, such as plinabulin which is in development for chemotherapy induced-neutropenia and ALRN-6924 which is in
development for chemotherapy-induced myelosuppression.

If rintodestrant is approved, it will compete with AstraZeneca’s approved IM SERD, fulvestrant. Rintodestrant would also compete with other oral SERDs
in  development  including:  RAD1901,  being  developed  by  Radius  Health;  GDC-9545,  being  developed  by  Genentech;  AZD9833,  being  developed  by
AstraZeneca;  SAR439859,  being  developed  by  Sanofi;  LY3484356,  being  developed  by  Eli  Lilly;  ARV-471,  being  developed  by  Arvenas;  and  ZN-c5,
being  developed  by  Zentalis.  Rintodestrant  may  compete  with  multiple  approved  drugs  or  drugs  that  may  be  approved  in  the  future  for  indications  for
which we may develop rintodestrant.

Intellectual property

Our commercial success depends in part on our ability to obtain and maintain proprietary protection for our CDK4/6 inhibitors, trilaciclib and lerociclib,
and  our  in-licensed  SERD  compound,  rintodestrant,  in  clinical  trials  and  methods  of  treatment  using  our  CDK4/6  inhibitors  and  our  in-licensed  SERD
compound, alone and in combination with other therapeutic agents. We also, where we believe appropriate, seek protection on processes for the production
of  our  CDK4/6  inhibitors  and  in-licensed  SERD  compound,  formulations,  additional  compositions,  combinations  of  our  product  candidates  with  other
active agents and dosing schedules and regimens. Our success also depends on our ability to operate without infringing on the proprietary rights of others
and to prevent others from infringing our proprietary rights. Our policy is to seek to protect our proprietary position by, among other methods, filing U.S.
and  foreign  patent  applications  covering  our  proprietary  technology,  inventions,  and  improvements  that  are  important  to  the  development  and
implementation of our business. In addition, we plan to seek patent term adjustments, restorations, and/or patent term extensions where applicable in the
United States and other jurisdictions. We also rely on trade secrets, know-how, continuing technological innovation and potential in-licensing opportunities
to develop and maintain our proprietary position. Additionally, we expect to benefit, where appropriate, from statutory frameworks in the United States,
Europe,  and  other  countries  that  provide  a  period  of  clinical  data  exclusivity  to  compensate  for  the  time  required  for  regulatory  approval  of  our  drug
products. See also the “Government Regulation and Product Approval” section below.

We are the sole owner or exclusive licensee of all of our patents and currently filed patent applications that cover our product candidates. Our intellectual
property strategy includes patenting our CDK4/6 inhibitors, their uses, and methods of manufacturing as well as our in-licensed applications directed to
selective estrogen receptor degraders and their uses, manufacture, and combination with our and other CDK4/6 inhibitors. We have obtained twenty-two
composition-of-matter patents in the United States on a number of our CDK4/6 inhibitors, including claims that cover our product candidates trilaciclib and
lerociclib, and we continue to seek composition-of-matter patents on additional CDK4/6 inhibitors both in the United States and throughout the world. In
addition, we have obtained eleven patents in the United States on methods of treatment using a number of our CDK4/6 inhibitors, including claims that
cover methods of using our product candidates trilaciclib and lerociclib. We continue to seek additional patents for our key CDK4/6 inhibitors and their
uses in key therapeutic areas.

We have also obtained a composition-of-matter patent, and two method of treatment patents, in the United States on the SERD compounds that we have
exclusively in-licensed, including rintodestrant. We also seek patent protection on methods of treatment that incorporate in-licensed SERD compounds in
combination with other therapeutic agents to treat specific clinical indications and targeted patient populations. Furthermore, we seek, where appropriate,
patent protection on processes of making certain SERD compounds, additional compositions, and intermediates used in the processes.

We  continually  assess  and  refine  our  intellectual  property  strategies  as  we  develop  new  technologies  and  product  candidates.  We  plan  to  file  additional
patent applications based on our intellectual property strategies where appropriate, including where we seek to adapt to competition or to improve business
opportunities. Further, we plan to file patent applications, as we consider appropriate under the circumstances, to protect new technologies that we develop.
Our  patent  filing  strategy  typically  includes  seeking  patent  protection  in  the  United  States,  the  European  Union,  and  in  additional  countries  where  we
believe such protection is likely to be useful, including one or more of Australia, Brazil, Canada, China, Hong Kong, India, Israel, Japan, Mexico, Macau,
Russia, Singapore, and South Korea.

13

 
 
We entered into four license agreements in 2020. On May 22, 2020, we entered into a license agreement with ARC Therapeutics, LLC, (“ARC”) where we
out-licensed to ARC a portfolio of CDK2 inhibitors for development and commercialization. On June 15, 2020, we entered into a license agreement with
Genor Biopharma Co. Inc.(“Genor”) for the development and commercialization of our CDK4/6 inhibitor lerociclib in the Genor Territory. On July 22,
2020, we entered into a license agreement with EQRx, Inc. (“EQRx”) for the development and commercialization of lerociclib in the EQRx Territory. On
August  3,  2020,  we  entered  into  a  license  agreement  with  Nanjing  Simcere Dongyuan  Pharmaceutical  Co.,  Ltd,  (“Simcere”)  for  the  development  and
commercialization of our CDK4/6 inhibitor trilaciclib in the Simcere Territory. Each of these license agreements is described below.

Our owned and in-licensed patent estate as of December 31, 2020, on a worldwide basis, includes over 350 granted or pending patent applications in more
than 30 patent families with 40 granted U.S. patents. The term of individual patents depends upon the laws of the countries in which they are obtained. In
the countries in which we currently file, the patent term is 20 years from the earliest date of filing of a non-provisional patent application which serves as a
priority application. However, the term of a U.S. patent may be extended to compensate for the time required to obtain regulatory approval to sell a drug (a
patent  term  extension)  or  by  delays  encountered  during  patent  prosecution  that  are  caused  by  the  United  States  Patent  and  Trademark  Office  (USPTO)
(referred to as patent term adjustment). For example, the Hatch-Waxman Act permits a patent term extension for FDA-approved drugs of up to five years
beyond the expiration of the patent. The length of the patent term extension is related to the length of time the drug is under regulatory review and diligence
during  the  review  process.  Patent  term  extensions  cannot  extend  the  remaining  term  of  a  patent  beyond  a  total  of  14  years  from  the  date  of  product
approval,  and  only  one  patent  covering  an  approved  drug  or  its  method  of  use  may  be  extended.  A  similar  kind  of  patent  extension,  referred  to  as  a
Supplementary  Protection  Certificate,  is  available  in  Europe.  Legal  frameworks  are  also  available  in  certain  other  jurisdictions  to  extend  the  term  of  a
patent.  We  currently  intend  to  seek  patent  term  extensions  on  any  of  our  issued  patents  in  any  jurisdiction  where  we  have  a  qualifying  patent  and  the
extension is available; however, there is no guarantee that the applicable regulatory authorities, including the FDA and the USPTO in the United States,
will agree with our assessment of whether such extensions should be granted, and even if granted, the length of such extensions. Further, even if our patent
is extended, the patent, including the extended portion of the patent, may be held invalid or unenforceable by a court of final jurisdiction in the United
States or a foreign country.

Our current issued patents covering the composition-of-matter for our present clinical candidates trilaciclib and lerociclib will expire in 2031, exclusive of
any  patent  term  extension.  Our  current  issued  patents  covering  methods  of  use  of  trilaciclib  and  lerociclib  will  expire  in  2034  to  2035.  Our  pending
applications on additional methods of use of trilaciclib and lerociclib, should they issue, will expire on dates ranging from 2034 to 2040. We plan to file
additional applications on aspects of our innovations that may have patent terms that extend beyond these dates.

Our  in-licensed  patent  covering  the  composition-of-matter  of  our  clinical  candidate  rintodestrant  will  expire  in  2036,  exclusive  of  any  patent  term
extension. Our pending applications on additional methods and compositions relating to rintodestrant, should they issue, will expire on dates ranging from
2038 to 2041.

Any of our patents, including patents that we may rely on to protect our market for approved drugs, may be held invalid or unenforceable by a court of final
jurisdiction.  Alternatively,  we  may  decide  that  it  is  in  our  interest  to  settle  a  litigation  in  a  manner  that  affects  the  term  or  enforceability  of  our  patent.
Changes  in  either  the  patent  laws  or  in  interpretations  of  patent  laws  in  the  United  States  and  other  countries  may  diminish  our  ability  to  protect  our
inventions and enforce our intellectual property rights. Accordingly, we cannot predict the breadth or enforceability of claims that have been or may be
granted in our patents or in third-party patents. The biotechnology and pharmaceutical industries are characterized by extensive litigation regarding patents
and  other  intellectual  property  rights.  Our  ability  to  obtain  and  maintain  our  proprietary  position  for  our  CDK4/6  inhibitors  or  our  in-licensed  SERD
compound will depend on our success in enforcing the claims that have been granted or may grant. We do not know whether any of the pending patent
applications that we have filed or may file or license from third parties will result in the issuance of any additional patents. The issued patents that we own
or may receive in the future may be challenged, invalidated, or circumvented, and the rights granted under any issued patents may not provide us with
sufficient protection or competitive advantages against competitors with similar technology. Furthermore, our competitors may be able to independently
develop and commercialize drugs with similar mechanisms of action and duplicate our methods of treatments or strategies without infringing our patents.
Because of the extensive time required for clinical development and regulatory review of a drug we may develop, it is possible that, before any of our drugs
can  be  commercialized,  any  related  patent  may  expire  or  remain  in  force  for  only  a  short  period  following  commercialization,  thereby  reducing  any
advantage of any such patent.

Trilaciclib and lerociclib patent coverage

We  own  five  issued  U.S.  Patents  (U.S.  8,598,186;  U.S.  8,598,197;  U.S.  9,957,276;  U.S.  10,189,849;  and  U.S.  10,189,850)  covering  the  trilaciclib
compositions-of-matter and its pharmaceutical composition. We also own six issued U.S. Patents (U.S. 8,598,186; U.S. 8,598,197; U.S. 9,481,691; U.S.
9,957,276; U.S. 10,189,851; and U.S. 10,696,682) covering the lerociclib composition-of-matter and pharmaceutical composition. We own corresponding
issued  patents  covering  trilaciclib  and  lerociclib  and  their  pharmaceutical  compositions  in  Europe,  Canada,  Japan,  Mexico,  China,  Macau,  Australia,
Russia, South Korea, India, Israel, Hong Kong, Brazil, and

14

Singapore. The expected year of expiration for these composition-of-matter patents, where issued, valid and enforceable, is 2031, without regard to any
extensions, adjustments, or restorations of term that may be available under national law.

In addition, we own two issued U.S. Patents (U.S. 9,487,530 and U.S. 10,085,992) covering the use of trilaciclib to reduce the effect of chemotherapy on
healthy  cells  in  a  subject  being  treated  for  CDK4/6  replication  independent  cancer.  This  patent  family  covers,  for  example,  SCLC  treatment  protocols
involving  chemotherapeutic  agents  carboplatin,  etoposide,  and/or  topotecan  along  with  trilaciclib  for  protection  of  healthy  replicating  cells  like
hematopoietic stem and progenitor cells. The patent filing also covers chemoprotection of healthy replicating cells with trilaciclib during the treatment of
CDK4/6 independent cancer including triple negative breast cancer. Patents from this family have issued in Europe, China, Hong Kong, Macau, and Japan.
A patent application from this family is pending in Canada. The expected year of expiration for this patent family, where issued, valid and enforceable, is
2034, without regard to any extensions, adjustments, or restorations of term that may be available under national law.

We have filed applications in the United States, in the European Patent Office (EPO), Canada, China, Hong Kong, Australia, Brazil, Israel, Japan, South
Korea,  Mexico,  New  Zealand,  Russia,  and  the  regional  patent  office  of  the  Eurasian  Patent  Organization  (EAPO)  and  the  African  Regional  Intellectual
Property Organization (ARIPO) that cover the administration of trilaciclib in combination with a checkpoint inhibitor. The expected year of expiration for
this patent family, where issued, valid and enforceable, is 2037, without regard to any extensions, adjustments, or restorations of term that may be available
under national law.

We own a patent family that is directed to the use of our CDK4/6 inhibitors to treat RB-positive tumors. The family includes three issued U.S. Patents (U.S.
9,527,857; U.S. 10,076,523; and U.S. 10,434,104) and one pending US patent application. The ‘857 patent covers the use of lerociclib, to treat RB-positive
breast cancer, colon cancer, ovarian cancer, NSCL cancer, prostate cancer, and glioblastoma, the ‘523 patent covers the use of lerociclib to treat Rb-positive
breast  cancer  continuously  for  28  days  or  more,  and  the  ‘104  patent  covers  the  use  of  lerociclib  to  treat  Rb-positive  breast  cancer  in  combination  with
goserelin. We have a pending U.S. patent application that has been allowed directed to the use of trilaciclib in combination with a chemotherapeutic agent
to treat RB-positive tumors. Patents in this family have also issued in China, Hong Kong, Macau, and Japan, and a patent application is pending in Canada.
The  expected  year  of  expiration  for  this  patent  family,  where  issued,  valid  and  enforceable,  is  2034,  without  regard  to  any  extensions,  adjustments,  or
restorations of term that may be available under national law.

We own a patent family directed to the use of trilaciclib or lerociclib as an anti-neoplastic agent against certain hematological cancers. This family includes
one issued U.S. Patent (10,709,711) and one pending US patent application. This patent filing is pending in Europe and Canada, and has issued in Japan
and  China.  The  expected  year  of  expiration  for  this  patent  family,  where  issued,  valid  and  enforceable,  is  2034,  without  regard  to  any  extensions,
adjustments, or restorations of term that may be available under national law.

We  have  filed  patent  applications  in  the  United  States,  Europe,  and  China  that  covers  the  administration  of  lerociclib  in  combination  with  an  EGFR
inhibitor, for example osimertinib, for the treatment of EGFR-mutant cancers, most notably NSCLC. The expected year of expiration for this patent family,
where issued, valid and enforceable, is 2038, without regard to any extensions, adjustments, or restorations of term that may be available under national
law.

We own a patent family directed to the use of lerociclib in combination with a Bruton’s tyrosine kinase inhibitor or other selected active agents to treat RB-
positive tumors. The family includes a granted U.S. patent (U.S. 10,231,969), a pending U.S. patent application and a pending European patent application.
The  expected  year  of  expiration  for  this  patent  family,  where  issued,  valid  and  enforceable,  is  2035,  without  regard  to  any  extensions,  adjustments,  or
restorations of term that may be available under national law.

We have filed patent applications in the United States, European Patent Office (EPO), Canada, China, Hong Kong, Australia, Brazil, Israel, Japan, South
Korea,  Mexico,  New  Zealand,  Russia,  and  the  regional  patent  office  of  the  Eurasian  Patent  Organization  (EAPO)  and  the  African  Regional  Intellectual
Property  Organization  (ARIPO)  that  cover  morphic  forms  of  lerociclib.  The  expected  year  of  expiration  for  this  patent  family,  where  issued,  valid  and
enforceable, is 2038, without regard to any extensions, adjustments, or restorations of term that may be available under national law.

We  have  filed  patent  applications  in  the  United  States,  European  Patent  Office  (EPO),  Brazil,  Canada,  China,  Colombia,  Hong  Kong,  Egypt,  Australia,
Brazil,  Israel,  Japan,  South  Korea,  Mexico,  New  Zealand,  Russia,  Indonesia,  Sri  Lanka,  Malaysia,  Nigeria,  Peru,  Philippines,  Singapore,  Thailand,
Vietnam,  South  Africa,  and  the  regional  patent  office  of  the  Eurasian  Patent  Organization  (EAPO)  and  the  African  Regional  Intellectual  Property
Organization (ARIPO) that cover dosage regimes of lerociclib. The expected year of expiration for this patent family, where issued, valid and enforceable,
is 2039, without regard to any extensions, adjustments, or restorations of term that may be available under national law.

We own a patent family directed to certain compositions of trilaciclib. This family has been filed in the United States and has a pending PCT application.
The  expected  year  of  expiration  for  this  patent  family,  where  issued,  valid  and  enforceable,  is  2040,  without  regard  to  any  extensions,  adjustments,  or
restorations of term that may be available under national law.

We own a patent family directed to the use of our CDK4/6 inhibitors in combination with the inhibitor of microtubule function eribulin for the treatment of
cancers. This family has a pending PCT application. The expected year of expiration for this patent

15

family, where issued, valid and enforceable, is 2039, without regard to any extensions, adjustments, or restorations of term that may be available under
national law.

We own a patent family directed to the selection of patients for administration of trilaciclib based on tumor type, chemotherapeutic regimen, and immune
factors. This family has a pending PCT application and has been filed in non-PCT countries. The expected year of expiration for this patent family, where
issued, valid and enforceable, is 2040, without regard to any extensions, adjustments, or restorations of term that may be available under national law.

We also own additional patent families directed to the use of our CDK4/6 inhibitors in combination with various other therapeutic agents for the treatment
of cancers harboring specific mutations. The expected year of expiration for these patent families, where issued, valid, and enforceable, is between 2039
and 2040, without regard to any extensions, adjustments, or restorations of term that may be available under national law.

We own two U.S. patent families directed to the use of our CDK4/6 inhibitors in particular clinical applications. The expected year of expiration for these
patent families, where issued, valid, and enforceable, is 2041, without regard to any extensions, adjustments, or restorations of term that may be available
under national law.

Rintodestrant Patent Coverage

We have exclusively licensed from University of Illinois, or the University, two patent families that cover rintodestrant and related compounds and their
pharmaceutical  compositions  and  use  as  selective  estrogen  receptor  down-regulators.  Selected  applications  from  these  families  are  pending  in  ARIPO,
Australia, Brazil, Canada, China, Eurasia, Europe, Israel, India, Japan, Korea, Mexico, New Zealand, Russia, United States, and South Africa. Three U.S.
Patents  (U.S.  10,118,910,  U.S.  10,377,735,  and  10,807,964)  have  issued  from  this  family.  We  have  also  received  issued  patents  in  Mexico  and  South
Africa.  The  expected  year  of  expiration  for  these  patent  families,  where  issued,  valid  and  enforceable,  is  2036,  without  regard  to  any  extensions,
adjustments, or restorations of term that may be available under national law. Under the Exclusive License Agreement with the University, we have the
right to prosecute the licensed applications, subject to review by the University.

We co-own, along with the University, patent applications filed in the United States, Europe, Australia, Brazil, Canada, China, Israel, India, Japan, South
Korea, Mexico, Russia, New Zealand, and the regional patent offices of ARIPO and the EAPO directed to the combination of rintodestrant and related
compounds  with  lerociclib  and  related  compounds  for  the  treatment  of  estrogen-modulated  disorders  such  as  RB-positive  breast  cancer.  We  have
exclusively licensed the University’s rights in this co-owned application. The expected year of expiration for this patent family, where issued, valid and
enforceable, is 2038, without regard to any extensions, adjustments, or restorations of term that may be available under national law.

We  also  exclusively  own  a  U.S.  application  that  describes  certain  compositions  of  rintodestrant  and  a  U.S.  application  that  describes  methods  of
manufacture of rintodestrant. The expected year of expiration for these patent families, where issued, valid and enforceable, is 2041, without regard to any
extensions, adjustments, or restorations of term that may be available under national law.

A  number  of  our  pending  patent  applications  covering  certain  aspects  of  using  our  current  clinical  candidates  have  not  yet  issued.  As  with  other
biotechnology and pharmaceutical companies, our ability to obtain and maintain a proprietary position on our drug candidates and technologies will depend
on  our  success  in  obtaining  effective  patent  claims  on  these  pending  patents  and  enforcing  those  claims  if  granted.  However,  our  pending  patent
applications,  and  any  patent  applications  that  we  may  in  the  future  file  or  license  from  third  parties,  may  not  result  in  the  issuance  of  patents.  We  also
cannot predict the breadth of claims that may be allowed or enforced in our patents.

Any issued patents that we have received or may receive in the future may be challenged, invalidated or circumvented. In addition, because of the extensive
time required for clinical development and regulatory review of a drug candidate we may develop, it is possible that, before any of our drug candidates can
be commercialized, any related patent may expire or remain in force for only a short period following commercialization, thereby limiting protection such
patent would afford the respective product and any competitive advantage such patent may provide. Moreover, even our issued patents do not guarantee us
the right to practice our technology in relation to the commercialization of our clinical candidates. The area of patent and other intellectual property rights
in pharmaceuticals is an evolving one with many risks and uncertainties, and third parties may have blocking patents that could be used to prevent us from
commercializing our clinical candidates.

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Exclusive license for rintodestrant

In  November  2016,  we  entered  into  a  license  agreement  with  the  University  of  Illinois,  the  University,  pursuant  to  which  we  obtained  an  exclusive,
worldwide  license  to  make,  use,  import,  sell  and  offer  for  sale  certain  SERDs,  including  rintodestrant,  covered  by  patent  rights  owned  by  the
University. The rights licensed to us are for all fields of use. The November 2016 license agreement was amended in March 2017.

Under  the  terms  of  the  agreement  we  paid  a  one-time  only,  non-refundable  upfront  fee  of  $0.5  million,  and  we  are  required  to  pay  the  University  low
single-digit royalties on all net sales of products and a share of any sublicensing revenues. We are also obligated to pay annual maintenance fees, which are
fully  creditable  against  any  royalty  payments  made  by  us.  We  will  also  be  required  to  pay  the  University  milestone  payments  of  up  to  an  aggregate  of
$2.6 million related to the initiation and execution of clinical trials and first commercial sale of a product in multiple countries. We are also responsible for
any future patent prosecution costs that may arise.

The term of the license agreement will continue on a country-by-country basis until the later of (i) the expiration of the last valid claim within the patent
rights covering the product in such country, (ii) the expiration of market exclusivity in such country and (iii) the 10th anniversary of the first commercial
sale in such country. The University may terminate the agreement in the event (i) we fail to pay any amount or make any report when required to be made
and fail to cure such failure within 30 days after receipt of notice, (ii) we are in breach of any provision of the agreement and fail to remedy such breach
within 45 days after receipt of notice, (iii) we make a report to the University under the agreement that is determined to be materially false, (iv) we declare
insolvency or bankruptcy or (v) we take any action that causes patent rights or technical information to be subject to any lien or encumbrance and fail to
remedy  within  45  days  of  receipt  of  notice.  We  may  terminate  the  agreement  at  any  time  upon  at  least  90  days’  written  notice.  Upon  expiration  or
termination of the agreement, all rights revert to the University.

Exclusive license to Nanjing Simcere Dongyuan Pharmaceutical Co., LTD. (“Simcere”) for trilaciclib

On  August  3,  2020,  we  entered  into  a  license  agreement  with  Nanjing  Simcere  Dongyuan  Pharmaceutical  Co.,  LTD.  (“Simcere  License”)  for  the
development and commercialization of trilaciclib for any indication in humans through parenteral delivery, including intravenous delivery, in China, Hong
Kong,  Macau,  and  Taiwan  (“Simcere  Territory”).  Pursuant  to  the  Simcere  License,  Simcere  has  been  granted  an  exclusive,  royalty-bearing,  non-
transferable license, with the right to grant sublicenses to thirteen of our solely-owned patent families in the Simcere Territory. We maintain the exclusive
right  to  prosecute  these  patent  families  with  consideration  of  Simcere’s  comments  and  suggestions.  Where  patent  applications  in  the  Simcere  Territory
cover both trilaciclib and lerociclib they are licensed to both Simcere and Genor.

Under  the  Simcere  License,  the  Company  and  Simcere  share  all  patent  prosecution  costs  incurred  in  the  Simcere  Territory,  except  that  we  are  solely
responsible  for  costs  associated  with  any  adversarial  patent  prosecution  proceeding  in  the  Simcere  Territory,  including  oppositions,  reexaminations,
invalidations, revocations, nullifications, or cancellation proceedings related to our licensed patent.

Under the Simcere License, we have the sole right in its sole discretion to bring and control any legal action to enforce our licensed patent families against
any infringement action in the Simcere Territory, except in the case of infringement relating to i) a G1 patent containing a claim to the composition-of-
matter  of  trilaciclib  or  ii)  a  G1  patent  that  contains  claims  covering  only  trilaciclib  that  arises  as  a  result  of  making,  using,  offering  to  sell,  selling  or
importing of trilaciclib by a third party, in which case we have the first right, but not the obligation, to bring and control any infringement action at its own
expense, subject to the consideration of Simcere’s reasonable and timely comments. To the extent we decline to bring an action against an infringer under
the above described conditions, Simcere has the right, but not the obligation, to bring an infringement action at its own expense.

Exclusive license to EQRx, Inc. for lerociclib

On July 22, 2020, we entered into a license agreement with EQRx, Inc. (the “EQRx License”) for the development and commercialization of lerociclib
using  an  oral  dosage  form  to  treat  any  indication  in  humans.  The  EQRx,  licensed  territories  are  all  of  the  countries  and  regions  of  the  world,  and  their
territories  and  possessions,  excluding  the  Genor  territory  (the  “EQRx  Territory”).  Pursuant  to  the  EQRx  License,  EQRx  has  been  granted  an  exclusive,
royalty-bearing,  non-transferable  license,  with  the  right  to  grant  sublicenses,  to  twelve  of  our  solely-owned  patent  families  in  the  EQRx  Territory.  We
maintain the exclusive right to prosecute these patent families in the EQRx Territory, and EQRx has the right to review and comment on all material patent
filings, with the review and comment to be considered by us in good faith.

Under the EQRx License, the Company and EQRx share all patent prosecution costs incurred in the EQRx Territory, except that we are solely responsible
for  costs  associated  with  any  adversarial  patent  prosecution  proceeding  in  the  EQRx  Territory,  including  oppositions,  reexaminations,  invalidations,
revocations, nullifications, interferences, or cancellation proceedings related to our licensed patent families by a third party. We have the sole right in our
sole discretion to bring and control any legal action to enforce our licensed patent families against any infringement action in the EQRx Territory, except in
the case of infringement relating to a G1

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patent that contains claims covering only lerociclib that arises as a result of making, using, offering to sell, selling or importing of a lerociclib by a third
party,  in  which  case  we  have  the  first  right,  but  not  the  obligation,  to  bring  and  control  any  infringement  action  at  its  own  expense,  subject  to  the
consideration  of  EQRX’s  reasonable  and  timely  comments. To  the  extent  we  decline  to  bring  an  action  against  an  infringer  under  the  above-described
conditions, EQRx has the right, but not the obligation, to bring an infringement action at its own expense.

Exclusive license to Genor Biopharma Co. Inc.. (“ Genor”) for lerociclib

On June 15, 2020, we entered into a license agreement with Genor Biopharma Co. Inc. (“Genor License”) for the development and commercialization of
lerociclib using an oral dosage form to treat any indication in humans. The  Genor licensed territories are in Australia, Bangladesh, China, Hong Kong,
India, Indonesia, Macau, Malaysia, Myanmar, New Zealand, Pakistan, Philippines, Singapore, South Korea, Sri Lanka, Taiwan, Thailand, and Vietnam (the
“Genor Territory”). Pursuant to the  Genor License,  Genor has been granted an exclusive, royalty-bearing, non-transferable license, with the right to grant
sublicenses,  to  ten  of  our  solely-owned  patent  families  in  the  Genor  Territory.  We  maintain  the  exclusive  right  to  prosecute  these  patent  families  in  the
Genor Territory, and Genor has the right to review and comment on all material patent filings, such review and comment to be considered by us in good
faith.

Under the Genor License, the Company and Genor share all patent prosecution costs incurred in the Genor Territory. We are solely responsible for costs
associated  with  any  adversarial  patent  prosecution  proceeding  in  the  Genor  Territory,  including  oppositions,  reexaminations,  invalidations,  revocations,
nullifications, or cancellation proceedings related to our licensed patent families.

Under the Genor License, we have the sole right in our discretion to bring and control any legal action to enforce our licensed patent families against any
infringement action in the Genor Territory, except in the case of i) a G1 patent containing a claim to the composition-of-matter of lerociclib or ii) a G1
patent that contains claims covering only lerociclib that arises as a result of making, using, offering to sell, selling or importing of a lerociclib by a third
party,  in  which  case  we  have  the  first  right,  but  not  the  obligation,  to  bring  and  control  any  infringement  action  at  its  own  expense,  subject  to  the
consideration  of  Genor’s  reasonable  and  timely  comments.  To  the  extent  we  decline  to  bring  an  action  against  an  infringer  under  the  above-described
conditions, Genor has the right, but not the obligation, to bring an infringement action at its own expense.

Exclusive license to ARC Therapeutics

On May 22, 2020, we entered into a global license agreement with ARC for the development and commercialization of a CDK2 inhibitor for all human and
veterinary uses. Pursuant to the ARC License, ARC has been granted an exclusive, royalty-bearing, license with the right to grant sublicenses to four of our
solely-owned patent families. Under the ARC License, ARC received the exclusive right to prosecute these patent families in its sole discretion, and we
have the right to review and comment on all material patent filings, and our review and comments will be considered by ARC in good faith.

Under the ARC License, ARC is solely responsible for all patent prosecution costs. ARC has the first right, but not the obligation, to bring and control any
infringement action at its own expense, subject to ARC keeping us reasonably informed. ARC also has the right to name and join us in any infringement
action relating to our patents. In the case of a patent certification in connection with an Abbreviated New Drug Application under the U.S. Hatch Waxman
Act,  or  the  substantial  equivalent  in  a  foreign  country,  if  ARC  declines  to  file  a  lawsuit,  we  have  the  right  to  bring  an  infringement  action  at  our  own
expense.

Trade secrets

In  addition  to  patents,  we  rely  upon  unpatented  trade  secrets  and  know-how  and  continuing  technological  innovation  to  develop  and  maintain  our
competitive position. We seek to protect our proprietary information, in part, using confidentiality agreements with our commercial partners, collaborators,
employees,  and  consultants,  and  invention  assignment  agreements  with  our  employees.  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.  These  agreements  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 commercial partners, collaborators, employees, and consultants 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.

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Government regulation and product approval

FDA approval process

In the United States, pharmaceutical products are subject to extensive regulation by the U.S. Food and Drug Administration, or FDA. The Federal Food,
Drug,  and  Cosmetic  Act,  or  the  FDC  Act,  and  other  federal  and  state  statutes  and  regulations,  govern,  among  other  things,  the  research,  development,
testing, manufacture, storage, recordkeeping, approval, labeling, promotion and marketing, distribution, post-approval monitoring and reporting, sampling,
and  import  and  export  of  pharmaceutical  products.  Failure  to  comply  with  applicable  U.S.  requirements  may  subject  a  company  to  a  variety  of
administrative or judicial sanctions, such as FDA refusal to approve pending new drug applications, or NDAs, warning letters, voluntary product recalls,
product seizures, total or partial suspension of production or distribution, injunctions, fines, civil penalties, and criminal prosecution.

Pharmaceutical product development in the United States typically involves the performance of nonclinical laboratory and animal tests, the submission to
the  FDA  of  an  investigational  new  drug  application,  or  IND,  which  must  become  effective  before  clinical  testing  may  commence,  and  adequate,  well-
controlled clinical trials to establish the safety and effectiveness of the drug for each indication for which FDA approval is sought. Satisfaction of FDA pre-
market approval requirements typically takes many years, and the actual time required may vary substantially based upon the type, complexity, and novelty
of the product or disease.

Preclinical tests include laboratory evaluation of product chemistry, formulation, and toxicity, as well as animal studies to assess the pharmacokinetic and
pharmacodynamic  characteristics  and  potential  safety  and  effectiveness  of  the  product.  The  conduct  of  the  preclinical  tests  must  comply  with  certain
federal regulations and requirements, including good laboratory practices, or GLP, for any safety testing. The results of preclinical testing are submitted to
the  FDA  as  part  of  an  IND  along  with  other  information,  including  information  about  product  chemistry,  manufacturing  and  controls,  and  a  proposed
clinical  trial  protocol.  Long-term  nonclinical  tests,  such  as  animal  tests  of  reproductive  toxicity  and  carcinogenicity,  may  continue  after  the  IND  is
submitted.

A 30-day waiting period after the submission of each IND is required prior to the commencement of clinical testing in humans. If the FDA has neither
commented on nor questioned the IND within this 30-day period, or placed the proposed clinical trial protocol on hold, the clinical trial proposed in the
IND may begin.

Clinical trials involve the administration of the investigational new drug to healthy volunteers or patients under the supervision of qualified investigators.
Clinical trials must be conducted: (i) under the supervision of one or more qualified investigators and in compliance with federal regulations, including
those encompassing good clinical practice, or GCP, requirements that are meant to protect the rights and welfare of study subjects and to define the roles of
clinical  trial  sponsors,  investigators,  and  monitors,  and  (ii)  under  protocols  detailing  the  objectives  of  the  clinical  trial,  the  parameters  to  be  used  in
monitoring  safety  and  the  effectiveness  criteria  to  be  evaluated.  Each  protocol  in  support  of  an  IND  and  subsequent  protocol  amendments  must  be
submitted to the FDA as part of the IND application.

The FDA may order the temporary, or permanent, discontinuation of a clinical trial at any time by imposing a clinical hold or impose other sanctions if it
believes  that  the  clinical  trial  either  is  not  being  conducted  in  accordance  with  FDA  requirements  or  presents  an  unacceptable  risk  to  the  clinical  trial
subjects. The clinical trial protocol and informed consent information for subjects in clinical trials must also be submitted for review and approval by an
institutional review board, or IRB, on behalf of each participating in the clinical trial before the trial commences at that site. An IRB also monitors the trial
until  completion  and  may  require  the  clinical  trial  at  the  site  to  be  halted,  either  temporarily  or  permanently,  for  failure  to  comply  with  the  IRB’s
requirements or for safety issues or it may impose other conditions on the clinical investigators or the sponsor of the clinical trial.

Clinical trials to support an NDA for marketing approval are typically conducted in three sequential phases, but the phases may overlap, and in some cases,
such as areas of high unmet medical need, NDA approval may be achieved without completing all phases. In Phase 1, the initial introduction of the drug
into healthy human subjects or patients, the drug is tested to assess metabolism, pharmacokinetics, pharmacological actions, side effects associated with
increasing doses, and, if possible, early evidence of effectiveness. Phase 2 usually involves clinical trials in a limited patient population to determine the
effectiveness of the drug for a particular indication, dosage tolerance, and optimum dosage, and to identify common adverse effects and safety risks. If a
compound demonstrates evidence of effectiveness and an acceptable safety profile in Phase 2 evaluations, Phase 3 clinical trials are undertaken to obtain
the additional information about clinical efficacy and safety in a larger number of patients, typically at geographically dispersed clinical trial sites, to permit
the FDA to evaluate the overall benefit-risk relationship of the drug and to provide adequate information for the labeling of the drug. In some cases, the
FDA may require two adequate and well-controlled Phase 3 clinical trials to demonstrate the efficacy of the drug. A single Phase 3 clinical trial with other
confirmatory  evidence  may  be  sufficient  in  rare  instances  where  the  clinical  trial  is  a  large  multicenter  trial  demonstrating  internal  consistency  and  a
statistically very persuasive finding of a clinically meaningful effect on mortality, irreversible morbidity, or prevention of a disease with potentially serious
outcome, and confirmation of the result in a second clinical trial would be practically or ethically impossible. Human clinical trials are inherently uncertain
and Phase 1, Phase 2 and Phase 3 testing may not be successfully completed. In addition, post-approval trials, sometimes referred to as “Phase 4” clinical
trials, may be conducted after initial marketing approval. These trials are used to gain

19

 
additional  experience  from  the  treatment  of  patients  in  the  intended  therapeutic  indication.  In  certain  instances,  FDA  may  mandate  the  performance  of
Phase  4  clinical  trials.  The  results  of  Phase  4  clinical  trials  can  confirm  the  effectiveness  of  a  product  candidate  and  can  provide  important  safety
information. Conversely, the results of Phase 4 clinical trials can raise new safety or effectiveness issues that were not apparent during the original review
of the product, which may result in product restrictions or even withdrawal of product approval.

After completion of the required clinical testing, an NDA is prepared and submitted to the FDA. FDA approval of the NDA is required before marketing of
the  product  may  begin  in  the  United  States.  The  NDA  must  include  the  results  of  all  nonclinical,  clinical,  and  other  testing  and  a  compilation  of  data
relating  to  the  product’s  chemistry,  manufacture,  and  controls.  The  cost  of  preparing  and  submitting  an  NDA  is  substantial.  Under  federal  law,  the
submission of most NDAs is additionally subject to a substantial application user fee, currently over $2.8 million for an NDA with clinical information, and
the  manufacturer  and/or  sponsor  under  an  approved  NDA  is  also  subject  to  an  annual  program  fee,  currently  over  $330,000.  These  fees  are  typically
increased annually. Fee waivers or reductions are available in certain circumstances.

The  FDA  has  60  days  from  its  receipt  of  an  NDA  to  determine  whether  the  application  will  be  accepted  for  filing  based  on  the  agency’s  threshold
determination that it is sufficiently complete to permit substantive review. Once the submission is accepted for filing, the FDA begins an in-depth review.
The FDA has agreed to certain performance goals in the review of NDAs. The FDA seeks to review applications for standard review drug products within
ten months, and applications for priority review drugs within six months. Priority review can be applied to drugs intended to treat a serious condition and
that the FDA determines offer major advances in treatment, or provide a treatment where no adequate therapy exists. The review process for both standard
and priority reviews may be extended by FDA for three additional months to consider additional, late-submitted information, or information intended to
clarify information already provided in the submission in response to FDA review questions.

The FDA may also refer applications for novel drug products, or drug products that present difficult questions of safety or efficacy, to an external advisory
committee, which is typically a panel that includes clinicians and other experts, for review, evaluation, and a recommendation as to whether the application
should  be  approved.  The  FDA  is  not  bound  by  the  recommendation  of  an  advisory  committee,  but  it  generally  follows  such  recommendations.  Before
approving an NDA, the FDA will typically inspect one or more clinical sites to assure compliance with GCP. Additionally, the FDA will typically inspect
the facility or the facilities at which the drug is manufactured, unless the facility has recently had an FDA inspection. The FDA also typically inspects the
application  sponsor.  The  FDA  will  not  approve  the  product  unless  compliance  with  current  good  manufacturing  practice,  or  cGMP,  requirements  is
satisfactory and the NDA contains data that provide substantial evidence that the drug is safe and effective in the indication studied.

After the FDA evaluates the NDA and the manufacturing facilities, it issues either an approval letter or a complete response letter. A complete response
letter  generally  outlines  the  deficiencies  in  the  submission  and  may  require  substantial  additional  testing,  or  additional  nonclinical  or  clinical  study
information,  in  order  for  the  FDA  to  reconsider  the  application.  If  a  complete  response  letter  is  issued,  the  applicant  may  either  resubmit  the  NDA,
addressing  all  of  the  deficiencies  identified  in  the  letter,  or  withdraw  the  application.  If,  or  when,  those  deficiencies  have  been  addressed  to  the  FDA’s
satisfaction in a resubmission of the NDA, the FDA will issue an approval letter. The FDA has committed to reviewing such resubmissions in two or six
months depending on the type of information included.

An approval letter authorizes commercial marketing of the drug with the accompanying approved prescribing information for specific indications. As a
condition of NDA approval, the FDA may require a risk evaluation and mitigation strategy, or REMS, in addition to the approved labeling, to help ensure
that the benefits of the drug outweigh its risks. A REMS could include communication plans for health care professionals, medication guides for patients,
and/or elements to assure safe use, or ETASU. ETASU can include, but are not limited to, special training or certification for prescribing or dispensing,
restricted distribution requirements, dispensing only under certain circumstances, special monitoring, and the use of patient registries. The FDA determines
the requirement for a REMS, as well as the specific REMS provisions, on a case-by-case basis. If the FDA concludes a REMS plan is needed, the sponsor
of the NDA must submit a proposed REMS plan. The requirement for a REMS can materially affect the potential market and profitability of the drug.
Moreover,  product  approval  may  require  substantial  post-approval  testing  and  surveillance  to  monitor  the  drug’s  safety  or  efficacy  as  described  as
postmarketing  commitments  or  requirements  included  in  the  approval  letter.  Once  granted,  product  approvals  may  be  withdrawn  if  compliance  with
regulatory requirements and commitments is not maintained or problems are identified following initial marketing.

Disclosure of clinical trial information

Sponsors  of  clinical  trials  of  certain  FDA-regulated  products,  including  prescription  drugs,  are  required  to  register  and  disclose  certain  clinical  trial
information on a public registry maintained by the U.S. National Institutes of Health (NIH). Information related to the product, patient population, phase of
investigation, clinical trial sites and investigator, and other aspects of the clinical trial is made public as part of the registration of the clinical trial. Although
sponsors are also obligated to disclose the results of their clinical trials after completion, disclosure of the results may be delayed in some cases for up to
two years after the date of completion of the trial.

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Competitors  may  use  this  publicly-available  information  to  gain  knowledge  regarding  the  design  and  progress  of  our  development  programs. Failure to
timely register a covered clinical study or to submit study results as provided for in the law can give rise to civil monetary penalties and also prevent the
non-compliant party from receiving future grant funds from the federal government. The NIH’s Final Rule on ClinicalTrials.gov registration and reporting
requirements became effective in 2017, and both NIH and FDA have signaled the government’s willingness to begin enforcing those requirements against
non-compliant clinical trial sponsors.

Data privacy and the protection of personal information

We are subject to laws and regulations governing data privacy and the protection of personal information including health information. The legislative and
regulatory  landscape  for  privacy  and  data  protection  continues  to  evolve,  and  there  has  been  an  increasing  focus  on  privacy  and  data  protection  issues
which  will  continue  to  affect  our  business.    In  the  United  States,  we  may  be  subject  to  state  security  breach  notification  laws,  state  laws  protecting  the
privacy of health and personal information and federal and state consumer protections laws which regulate the collection, use, disclosure and transmission
of  personal  information.  These  laws  overlap  and  often  conflict  and  each  of  these  laws  is  subject  to  varying  interpretations  by  courts  and  government
agencies,  creating  complex  compliance  issues  for  us.    If  we  fail  to  comply  with  applicable  laws  and  regulations  we  could  be  subject  to  penalties  or
sanctions,  including  criminal  penalties.    Our  customers  and  research  partners  must  comply  with  laws  governing  the  privacy  and  security  of  health
information, including the Health Insurance Portability and Accountability Act of 1996 as amended (“HIPAA”) and state health information privacy laws.
If we knowingly obtain health information that is protected under HIPAA, called “protected health information”, our customers or research collaborators
may be subject to enforcement and we may have direct liability for the unlawful receipt of protected health information or for aiding and abetting a HIPAA
violation.  

State  laws  protecting  health  and  personal  information  are  becoming  increasingly  stringent.    For  example,    California  has  implemented  the  California
Confidentiality  of  Medical  Information  Act  that  imposes  restrictive  requirements  regulating  the  use  and  disclosure  of  health  information  and  other
personally identifiable information, and California has recently adopted the California Consumer Privacy Act of 2018 (the CCPA).  The CCPA mirrors a
number of the key provisions of the EU General Data Protection Regulation (GDPR) described below.  The CCPA establishes a new privacy framework for
covered  businesses  by  creating  an  expanded  definition  of  personal  information,  establishing  new  data  privacy  rights  for  consumers  in  the  State  of
California, imposing special rules on the collection of consumer data from minors, and creating a new and potentially severe statutory damages framework
for violations of the CCPA and for businesses that fail to implement reasonable security procedures and practices to prevent data breaches.  Additionally, a
new  privacy  law,  the  California  Privacy  Rights  Act  (CPRA),  was  approved  by  California  voters  in  the  election  on  November  3,  2020.  The  CPRA  will
modify the CCPA significantly, potentially resulting in further uncertainty, additional costs and expenses in an effort to comply and additional potential for
harm and liability for failure to comply.  Other states in the US are considering privacy laws similar to CCPA.  

The Hatch-Waxman Act and marketing applications for follow-on drugs

In 1984, with passage of the Hatch-Waxman Amendments to the FDC Act, Congress authorized the FDA to approve generic drugs that are the same as
drugs previously approved by the FDA under the NDA provisions of the statute and also enacted Section 505(b)(2) of the FDC Act. To obtain approval of a
generic  drug,  an  applicant  must  submit  an  abbreviated  new  drug  application,  or  ANDA,  to  the  agency.  In  support  of  such  applications,  a  generic
manufacturer may rely on the preclinical and clinical testing conducted for a drug product previously approved under an NDA, known as the reference
listed drug, or RLD. Specifically, in order for an ANDA to be approved, the FDA must find that the generic version is identical to the RLD with respect to
the active ingredients, the route of administration, the dosage form, and the strength of the drug. At the same time, the FDA must also determine that the
generic drug is “bioequivalent” to the innovator drug.

Orange book listing

In seeking approval for a drug through an NDA, applicants are required to list with the FDA each patent that has claims that cover the applicant’s product
or method of therapeutic use. Upon approval of a drug, each of the patents listed in the application for the drug is then published in the FDA’s Approved
Drug Products with Therapeutic Equivalence Evaluations, commonly known as the Orange Book. Drugs listed in the Orange Book can, in turn, be cited by
potential  generic  competitors  in  support  of  approval  of  an  ANDA.  The  ANDA  requests  permission  to  market  a  drug  product  that  has  the  same  active
ingredients in the same strengths and dosage form as the RLD and has been shown through bioequivalence testing to be therapeutically equivalent to the
RLD. Other than the requirement for bioequivalence testing, ANDA applicants are not required to conduct, or submit results of, nonclinical or clinical tests
to prove the safety or effectiveness of their drug product. Drugs approved in this way are commonly referred to as “generic equivalents” to the innovator
drug, and can often be substituted by pharmacists under prescriptions written for the original listed drug referenced by the ANDA applicant if the FDA’s
listing for the generic drug in the Orange Book indicates that it is “therapeutically equivalent” to the RLD.

In contrast, Section 505(b)(2) permits the filing of an NDA where at least some of the information required for approval comes from studies not conducted
by or for the applicant and for which the applicant has not obtained a right of reference. A Section 505(b)(2)

21

applicant may eliminate the need to conduct certain preclinical or clinical studies, if it can establish that reliance on studies conducted for a previously-
approved product is scientifically appropriate. Unlike the ANDA pathway used by developers of bioequivalent versions of innovator drugs, which does not
allow  applicants  to  submit  new  clinical  data  other  than  bioavailability  or  bioequivalence  data,  the  505(b)(2)  regulatory  pathway  does  not  preclude  the
possibility that a follow-on applicant would need to conduct additional clinical trials or nonclinical studies; for example, it may be seeking approval to
market  a  previously  approved  drug  for  new  indications  or  for  a  new  patient  population  that  would  require  new  clinical  data  to  demonstrate  safety  or
effectiveness.

When an ANDA applicant submits its application to the FDA, it is required to certify to the FDA concerning any patents listed for the approved product in
the FDA’s Orange Book. Specifically, the applicant must certify that: (i) the required patent information has not been filed; (ii) the listed patent has expired;
(iii) the listed patent has not expired, but will expire on a particular date and approval is sought after patent expiration; or (iv) the listed patent is invalid or
will not be infringed by the new product. The ANDA applicant may also elect to submit a section viii statement, certifying that its proposed ANDA label
does  not  contain  or  carve  out  any  language  regarding  the  patented  method-of-use,  rather  than  certify  to  a  listed  method-of-use  patent.  Moreover,  to the
extent that the Section 505(b)(2) NDA applicant is relying on studies conducted for an already approved product, the applicant also is required to certify to
the FDA concerning any patents listed for the approved product in the Orange Book to the same extent that an ANDA applicant would. 

If  the  applicant  does  not  challenge  the  innovator’s  listed  patents,  FDA  will  not  approve  the  ANDA  or  505(b)(2)  application  until  all  the  listed  patents
claiming the referenced product have expired. A certification that the new product will not infringe the already approved product’s listed patents, or that
such patents are invalid, is called a Paragraph IV certification. If the ANDA applicant has provided a Paragraph IV certification to the FDA, the applicant
must also send notice of the Paragraph IV certification to the NDA and patent holders once the ANDA has been accepted for filing by the FDA. The NDA
and  patent  holders  may  then  initiate  a  patent  infringement  lawsuit  in  response  to  the  notice  of  the  Paragraph  IV  certification.  The  filing  of  a  patent
infringement  lawsuit  within  45  days  of  the  receipt  of  a  Paragraph  IV  certification  automatically  prevents  the  FDA  from  approving  the  ANDA  until  the
earlier of 30 months, expiration of the patent, settlement of the lawsuit, or a decision in the infringement case that is favorable to the ANDA applicant.

An  ANDA  or  505(b)(2)  application  also  will  not  be  approved  until  any  applicable  non-patent  exclusivity  listed  in  the  Orange  Book  for  the  referenced
product has expired.

Non-Patent Exclusivity

Upon NDA approval of a new chemical entity or NCE, which is a drug that contains no active moiety that has been approved by the FDA in any other
NDA, that drug receives five years of marketing exclusivity during which time the FDA cannot receive any ANDA seeking approval of a generic version
of that drug. Certain changes to a drug, such as the addition of a new indication to the package insert or a different formulation, are associated with a three-
year period of exclusivity. During the exclusivity period, the FDA cannot accept for review any ANDA or 505(b)(2) NDA submitted by another company
for another version of such drug where the applicant does not own or have a legal right of reference to all the data required for approval. However,  an
application may be submitted one year before NCE exclusivity expires if a Paragraph IV certification is filed on an NCE patent and any time after approval
if the application is filed based on a new indication or a new formulation.

The  Hatch-Waxman  Act  also  provides  three  years  of  data  exclusivity  for  a  NDA,  505(b)(2)  NDA  or  supplement  to  an  existing  NDA  if  new  clinical
investigations, other than bioavailability studies, that were conducted or sponsored by the applicant are deemed by the FDA to be essential to the approval
of  the  application,  for  example,  new  indications,  dosages  or  strengths  of  an  existing  drug.  This  three-year  exclusivity  covers  only  the  conditions  of  use
associated  with  the  new  clinical  investigations  and  does  not  prohibit  the  FDA  from  approving  follow-on  applications  for  drugs  containing  the  original
active agent. If there is no listed patent in the Orange Book, there may not be a Paragraph IV certification, and, thus, no ANDA or 505(b)(2) NDA may be
filed before the expiration of the exclusivity period. Five-year and three-year exclusivity also will not delay the submission or approval of a traditional
NDA filed under Section 505(b)(1) of the FDC Act. However, an applicant submitting a traditional NDA would be required to either conduct or obtain a
right of reference to all of the preclinical studies and adequate and well-controlled clinical trials necessary to demonstrate safety and effectiveness.

Patent term extension

After  NDA  approval,  owners  of  relevant  drug  patents  may  apply  for  up  to  a  five-year  patent  term  extension.  The  allowable  patent  term  extension  is
calculated as half of the drug’s testing phase—the time between when the IND becomes effective and NDA submission—and all of the review phase—the
time  between  NDA  submission  and  approval,  up  to  a  maximum  of  five  years.  The  time  can  be  shortened  if  FDA  determines  that  the  applicant  did  not
pursue approval with due diligence. The total patent term after the extension may not exceed 14 years.

22

For patents that might expire during the application phase, the patent owner may request an interim patent extension. An interim patent extension increases
the patent term by one year and may be renewed up to four times. For each interim patent extension granted, the post-approval patent extension is reduced
by one year. The director of the Patent and Trademark Office (PTO) must determine that approval of the drug covered by the patent for which a patent
extension is being sought is likely. Interim patent extensions are not available for a drug for which an NDA has not been submitted.

Pediatric clinical trials and exclusivity

Under the Pediatric Research Equity Act, or PREA, NDAs or certain types of supplements to NDAs must contain data to assess the safety and effectiveness
of the drug for the claimed indications in all relevant pediatric subpopulations and to support dosing and administration for each pediatric subpopulation for
which the drug is safe and effective. The sponsor must submit an initial Pediatric Study Plan, or PSP, within 60 days of an end-of-phase 2 meeting or as
may be agreed between the sponsor and the FDA. The initial PSP must include an outline of the pediatric study or studies that the sponsor plans to conduct,
including study objectives and design, age groups, relevant endpoints and statistical approach, or a justification for not including such detailed information,
and  any  request  for  a  deferral  of  pediatric  assessments  or  a  full  or  partial  waiver  of  the  requirement  to  provide  data  from  pediatric  studies  along  with
supporting information. The FDA and the sponsor must reach agreement on the PSP. A sponsor can submit amendments to an agreed-upon initial PSP at
any time if changes to the pediatric plan need to be considered based on data collected from nonclinical studies, early phase clinical trials, and/or other
clinical development programs. The FDA may grant full or partial waivers, or deferrals, for submission of pediatric assessment data.

The Best Pharmaceuticals for Children Act, or BPCA, provides NDA holders a six-month extension of any exclusivity—patent or non-patent—for a drug if
certain conditions are met, including satisfaction of a pediatric trial(s) agreed with FDA as a Pediatric Written Request. Conditions for pediatric exclusivity
include  the  FDA’s  determination  that  information  relating  to  the  use  of  a  new  drug  in  the  pediatric  population  may  produce  health  benefits  in  that
population, the FDA making a written request for pediatric clinical trials, and the applicant agreeing to perform, and reporting on, the requested clinical
trials within the statutory timeframe. Applications under the BPCA are treated as priority applications, with all of the benefits that designation confers. This
six-month  exclusivity  may  be  granted  if  an  NDA  sponsor  submits  pediatric  data  that  fairly  respond  to  the  written  request  from  the  FDA  for  such  data.
Those data do not need to show the product to be effective in the pediatric population studied; rather, if the clinical trial is deemed to fairly respond to the
FDA’s request, the additional protection is granted. Although this is not a patent term extension, it effectively extends the regulatory period during which
the FDA cannot approve another application.

Fast track, breakthrough therapy, and priority review designations

The FDA is authorized to designate certain products for expedited development or review if they are intended to address an unmet medical need in the
treatment of a serious or life-threatening disease or condition. These programs include fast track designation, breakthrough therapy designation, and priority
review designation. Even if a drug qualifies for one or more of these programs, the FDA may later decide that the drug no longer meets the conditions for
qualification or that the time period for FDA review or approval will not be shortened. Generally, drugs that may be eligible for these programs are those
for serious or life-threatening conditions, those with the potential to address unmet medical needs, and those that offer meaningful benefits over existing
treatments. For example, fast track designation is a process designed to facilitate the development, and expedite the review, of drugs to treat serious or life-
threatening diseases and fill an unmet medical need. The designation request may be made at the time of IND submission and generally no later than the
pre-NDA  meeting.  The  FDA  will  respond  within  60  calendar  days  of  receipt  of  the  request.  Priority  review,  which  is  requested  at  the  time  of  NDA
submission,  is  designed  to  give  drugs  that  offer  major  advances  in  treatment  or  provide  a  treatment  where  no  adequate  therapy  exists,  an  initial  review
within six months after filing as compared to a standard review time of ten months. Although fast track designation and priority review do not affect the
standards for approval, the FDA will attempt to facilitate early and frequent meetings with a sponsor of a fast track designated drug and expedite review of
the application for a drug designated for priority review. Accelerated approval provides an earlier approval of drugs to treat serious diseases, and that fill an
unmet  medical  need  based  on  a  surrogate  endpoint,  which  is  a  laboratory  measurement  or  physical  sign  used  as  an  indirect  or  substitute  measurement
representing  a  clinically  meaningful  outcome.  Discussions  with  the  FDA  about  the  feasibility  of  an  accelerated  approval  typically  begin  early  in  the
development of the drug in order to identify, among other things, an appropriate endpoint. As a condition of approval, the FDA may require that a sponsor
of a drug receiving accelerated approval perform post-marketing clinical trials to confirm the appropriateness of the surrogate marker clinical trial.

Another  expedited  program  is  that  for  breakthrough  therapy  designation,  which  is  designed  to  expedite  the  development  and  review  of  drugs  that  are
intended to treat a serious condition where preliminary clinical evidence indicates that the drug may demonstrate substantial improvement over available
therapy on a clinically significant endpoint(s). A sponsor may request breakthrough therapy designation at the time that the IND is submitted, or no later
than at the end-of-Phase 2 meeting. The FDA will respond to a breakthrough therapy designation request within sixty days of receipt of the request. A drug
that  receives  breakthrough  therapy  designation  is  eligible  for  all  fast  track  designation  features,  intensive  guidance  on  an  efficient  drug  development
program, beginning as early as Phase 1, and commitment from the FDA involving senior managers. Products that are designated as Breakthrough therapies
with priority review are often given preclinical or clinical post-marketing requirements or post marketing commitments by the FDA.

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Accelerated approval pathway
In  addition,  products  studied  for  their  safety  and  effectiveness  in  treating  serious  or  life-threatening  illnesses  and  that  provide  meaningful  therapeutic
benefit over existing treatments may receive accelerated approval from the FDA and may be approved on the basis of adequate and well-controlled clinical
trials establishing that the drug product has an effect on a surrogate endpoint that is reasonably likely to predict clinical benefit. A surrogate endpoint is a
laboratory measurement or physical sign used as an indirect or substitute measurement representing a clinically meaningful outcome. Surrogate endpoints
can often be measured more easily or more rapidly than clinical endpoints. The FDA may also grant accelerated approval for such a drug when the product
has an effect on an intermediate clinical endpoint that can be measured earlier than an effect on irreversible morbidity or mortality, or IMM, and that is
reasonably  likely  to  predict  an  effect  on  IMM  or  other  clinical  benefit,  taking  into  account  the  severity,  rarity,  or  prevalence  of  the  condition  and  the
availability or lack of alternative treatments. The FDA has limited experience with accelerated approvals based on intermediate clinical endpoints, but has
indicated  that  such  endpoints  generally  may  support  accelerated  approval  when  the  therapeutic  effect  measured  by  the  endpoint  is  not  itself  a  clinical
benefit and basis for traditional approval, if there is a basis for concluding that the therapeutic effect is reasonably likely to predict the ultimate long-term
clinical benefit of a drug.

Discussions with the FDA about the feasibility of an accelerated approval typically begin early in the development of the drug in order to identify, among
other  things,  an  appropriate  endpoint.  The  accelerated  approval  pathway  is  most  often  used  in  settings  in  which  the  course  of  a  disease  is  long  and  an
extended period of time is required to measure the intended clinical benefit of a drug, even if the effect on the surrogate or intermediate clinical endpoint
occurs rapidly. For example, accelerated approval has been used extensively in the development and approval of drugs for treatment of a variety of cancers
in  which  the  goal  of  therapy  is  generally  to  improve  survival  or  decrease  morbidity  and  the  duration  of  the  typical  disease  course  requires  lengthy  and
sometimes large clinical trials to demonstrate a clinical or survival benefit.

As a condition of approval, the FDA may require that a sponsor of a drug receiving accelerated approval perform post-marketing clinical trials to verify and
describe the predicted effect on IMM or other clinical endpoint. Drugs granted accelerated approval must meet the same statutory standards for safety and
effectiveness as those granted traditional approval. Because the accelerated approval pathway is usually contingent on a sponsor’s agreement to conduct, in
a  diligent  manner,  additional  post-approval  confirmatory  studies  to  verify  and  describe  the  drug’s  clinical  benefit,  a  product  candidate  approved  on  this
basis  is  subject  to  rigorous  post-marketing  compliance  requirements,  including  the  completion  of  Phase  4  or  post-approval  clinical  trials  to  confirm  the
effect on the clinical endpoint. Failure to conduct required post-approval studies, or to confirm the predicted clinical benefit of the product during post-
marketing studies, would allow the FDA to withdraw approval of the drug. In addition, all promotional materials for product candidates being considered
and approved under the accelerated approval program are subject to prior review by the FDA.

Regulation of companion diagnostic devices

If we decide that a diagnostic test would provide useful information for patient selection or if the FDA requires us to develop such a test, we may work with
a  collaborator  to  develop  an  in  vitro  diagnostic,  or  companion  test.  The  FDA  regulates  in  vitro  diagnostic  tests  as  medical  devices,  and  the  type  of
regulation to which such a test will be subjected will depend, in part, on a risk assessment by the FDA as well as a determination of whether the test is
intended to yield results that would be helpful to know versus one that the FDA or we believe is necessary to know for the safe and effective use of our
drugs under development.

The  FDA  has  issued  several  guidance  documents  on  in  vitro  companion  diagnostic  devices  in  August  2014,  which  are  intended  to  assist  companies
developing in vitro companion diagnostic devices and companies developing therapeutic products that depend on the use of a specific in vitro companion
diagnostic for the safe and effective use of the product. The FDA defines an in vitro companion diagnostic device, or IVD companion diagnostic device, as
a device that provides information that is essential for the safe and effective use of a corresponding therapeutic product, such as when the use of a product
is limited to a specific patient subpopulation that can be identified by using the test. The use of an IVD companion diagnostic device with a therapeutic
product will be stipulated in the instructions for use in the labeling of both the diagnostic device and the corresponding therapeutic product, including the
labeling of any generic equivalents of the therapeutic product. The FDA expects that the therapeutic product sponsor will address the need for an approved
or  cleared  IVD  companion  diagnostic  device  in  its  therapeutic  product  development  plan  and  that,  in  most  cases,  the  therapeutic  product  and  its
corresponding companion diagnostic will be developed contemporaneously. However, the FDA may decide that it is appropriate to approve such a product
without an approved or cleared in vitro companion diagnostic device when the drug or therapeutic biologic is intended to treat a serious or life-threatening
condition for which no satisfactory alternative treatment exists and the FDA determines that the benefits from the use of a product with an unapproved or
uncleared in vitro companion diagnostic device are so pronounced as to outweigh the risks from the lack of an approved or cleared in  vitro  companion
diagnostic device. The FDA encourages sponsors considering developing a therapeutic product that requires a companion diagnostic to request a meeting
with both relevant device and therapeutic product review divisions to ensure that the product development plan will produce sufficient data to establish the
safety and effectiveness of both the therapeutic product and the companion diagnostic. Because the FDA’s policies on companion diagnostics is set forth
only in guidance, this policy is subject to change and is not legally binding.

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Post-approval requirements
Following FDA marketing approval of a new prescription drug product, the manufacturer and the approved drug are subject to pervasive and continuing
regulation by the FDA, including, among other things, monitoring and recordkeeping activities, reporting of adverse experiences with the product, product
sampling  and  distribution  restrictions,  complying  with  promotion  and  advertising  requirements,  which  include  restrictions  on  promoting  drugs  for
unapproved  uses  or  patient  populations  (i.e.,  “off-label  use”)  and  limitations  on  industry-sponsored  scientific  and  educational  activities.  Although
physicians may prescribe legally available products for off-label uses, manufacturers may not market or promote such uses. The FDA and other agencies
actively enforce the laws and regulations prohibiting the promotion of off-label uses, and a company that is found to have improperly promoted off-label
uses  may  be  subject  to  significant  liability.  If  there  are  any  modifications  to  the  product,  including  changes  in  indications,  labeling  or  manufacturing
processes or facilities, the applicant may be required to submit and obtain FDA approval of a new NDA or an NDA supplement, which may require the
applicant to develop additional data or conduct additional preclinical studies and clinical trials.

Once  an  approval  is  granted,  the  FDA  may  withdraw  the  approval  if  compliance  with  regulatory  requirements  and  standards  is  not  maintained  or  if
problems occur after the drug product reaches the market. Later discovery of previously unknown problems with a product, including adverse events of
unanticipated severity or frequency, may result in in mandatory revisions to the approved labeling to add new safety information; imposition of post-market
or clinical trials to assess new safety risks; or imposition of distribution or other restrictions under a REMS program. Other potential consequences include,
among other things:

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restrictions on the marketing or manufacturing of the product, complete withdrawal of the product from the market or product recalls;
fines, warning letters or other enforcement-related letters or clinical holds on post-approval clinical trials;
refusal of the FDA to approve pending NDAs or supplements to approved NDAs, or suspension or revocation of product approvals;
product seizure or detention, or refusal to permit the import or export of products;
injunctions or the imposition of civil or criminal penalties; and
consent  decrees,  corporate  integrity  agreements,  debarment,  or  exclusion  from  federal  health  care  programs;  or  mandated  modification  of
promotional materials and labeling and the issuance of corrective information.

Accordingly,  COSELA  and  any  future  therapeutic  candidate  manufactured  or  distributed  by  us  pursuant  to  FDA  approvals  are  subject  to  continuing
regulation by the FDA, including, among other things:

■
■
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record-keeping requirements;
reporting of adverse experiences with the therapeutic candidate;
providing the FDA with updated safety and efficacy information;
therapeutic sampling and distribution requirements;
notifying the FDA and gaining its approval of specified manufacturing or labeling changes; and
complying with FDA promotion and advertising requirements, which include, among other things, standards for direct-to-consumer advertising,
restrictions  on  promoting  products  for  uses  or  in-patient  populations  that  are  not  described  in  the  product’s  approved  labeling,  limitations  on
industry-sponsored scientific and educational activities and requirements for promotional activities involving the internet.

FDA  regulations  require  that  products  be  manufactured  in  specific  approved  facilities  and  in  accordance  with  cGMPs.  The  cGMP  regulations  include
requirements relating to organization of personnel, buildings and facilities, equipment, control of components and drug product containers and closures,
production  and  process  controls,  packaging  and  labeling  controls,  holding  and  distribution,  laboratory  controls,  records  and  reports  and  returned  or
salvaged products. Drug manufacturers and other entities involved in the manufacture and distribution of approved drug products are required to register
their establishments with the FDA and certain state agencies and are subject to periodic unannounced inspections by the FDA and some state agencies for
compliance  with  cGMPs  and  other  laws.  The  FDA  periodically  inspects  manufacturing  facilities  to  assess  compliance  with  cGMP  requirements.  In
addition, changes to the manufacturing process are strictly regulated, and, depending on the significance of the change, may require FDA approval before
being  implemented.  FDA  regulations  also  require  investigation  and  correction  of  any  deviations  from  cGMP  and  impose  reporting  and  documentation
requirements upon the NDA applicant and any third-party manufacturers involved in producing the approved drug product. Accordingly, manufacturers
must  continue  to  expend  time,  money  and  effort  in  the  area  of  production  and  quality  control  to  maintain  compliance  with  cGMP  and  other  aspects  of
quality control and quality assurance.

In addition, the distribution of prescription pharmaceutical products is subject to the Prescription Drug Marketing Act, or the PDMA, which regulates the
distribution of drugs and drug samples at the federal level, and sets minimum standards for the registration and regulation of drug distributors by the states.
Both the PDMA and state laws limit the distribution of prescription pharmaceutical product samples and impose requirements to ensure accountability in
distribution. Most recently, the Drug Supply Chain Security Act, or the DSCSA, was enacted with the aim of building an electronic system to identify and
trace certain prescription drugs distributed in

25

 
 
 
 
 
 
 
 
 
 
 
 
 
the  United  States,  including  most  biological  products.  The  DSCSA  mandates  phased-in  and  resource-intensive  obligations  for  pharmaceutical
manufacturers,  wholesale  distributors,  and  dispensers  over  a  10‑year  period  that  is  expected  to  culminate  in  November  2023.  From  time  to  time,  new
legislation  and  regulations  may  be  implemented  that  could  significantly  change  the  statutory  provisions  governing  the  approval,  manufacturing  and
marketing  of  products  regulated  by  the  FDA.  It  is  impossible  to  predict  whether  further  legislative  or  regulatory  changes  will  be  enacted,  or  FDA
regulations, guidance or interpretations changed or what the impact of such changes, if any, may be.

Europe/Rest of world government regulation

In addition to regulations in the United States, we are and will be subject, either directly or through our distribution partners, to a variety of regulations in
other  jurisdictions  governing,  among  other  things,  clinical  trials,  the  privacy  of  personal  data  and  commercial  sales  and  distribution  of  our  products,  if
approved.

Whether or not we obtain FDA approval for a product, we must obtain the requisite approvals from regulatory authorities in non-U.S. countries prior to the
commencement of clinical trials or marketing of the product in those countries. Certain countries outside of the United States have a process that requires
the submission of a clinical trial application much like an IND prior to the commencement of human clinical trials. In Europe, for example, a clinical trial
application,  or  CTA,  must  be  submitted  to  the  competent  national  health  authority  and  to  independent  ethics  committees  in  each  country  in  which  a
company plans to conduct clinical trials. Once the CTA is approved in accordance with a country’s requirements, clinical trials may proceed in that country.

The requirements and process governing the conduct of clinical trials, product licensing, pricing and reimbursement vary from country to country, even
though there is already some degree of legal harmonization in the European Union member states resulting from the national implementation of underlying
E.U. legislation. In all cases, the clinical trials are conducted in accordance with GCP and other applicable regulatory requirements.

To obtain a marketing license for a new drug, or medicinal product in the European Union, the sponsor must obtain approval of a marketing authorization
application, or MAA. The way in which a medicinal product can be approved in the European Union depends on the nature of the medicinal product.

The centralized procedure results in a single marketing authorization granted by the European Commission that is valid across the European Union, as well
as in Iceland, Liechtenstein, and Norway. The centralized procedure is compulsory for human drugs that are: (i) derived from biotechnology processes,
such  as  genetic  engineering,  (ii)  contain  a  new  active  substance  indicated  for  the  treatment  of  certain  diseases,  such  as  HIV/AIDS,  cancer,  diabetes,
neurodegenerative diseases, autoimmune and other immune dysfunctions and viral diseases, (iii) officially designated “orphan drugs” (drugs used for rare
human  diseases)  and  (iv)  advanced-therapy  medicines,  such  as  gene-therapy,  somatic  cell-therapy  or  tissue-engineered  medicines.  The  centralized
procedure may at the request of the applicant also be used for human drugs which do not fall within the above mentioned categories if the human drug
(a) contains a new active substance which was not authorized in the European Community; or (b) the applicant shows that the medicinal product constitutes
a significant therapeutic, scientific or technical innovation or that the granting of authorization in the centralized procedure is in the interests of patients or
animal health at the European Community level.

Under  the  centralized  procedure  in  the  European  Union,  the  maximum  timeframe  for  the  evaluation  of  a  marketing  authorization  application  by  the
European Medicines Agency, or EMA, is 210 days (excluding clock stops, when additional written or oral information is to be provided by the applicant in
response to questions asked by the Committee for Medicinal Products for Human Use, or CHMP), with adoption of the actual marketing authorization by
the European Commission thereafter. Accelerated evaluation might be granted by the CHMP in exceptional cases, when a medicinal product is expected to
be of a major public health interest from the point of view of therapeutic innovation, defined by three cumulative criteria: the seriousness of the disease to
be treated; the absence of an appropriate alternative therapeutic approach, and anticipation of exceptional high therapeutic benefit. In this circumstance,
EMA ensures that the evaluation for the opinion of the CHMP is completed within 150 days and the opinion issued thereafter.

The  mutual  recognition  procedure,  or  MRP,  for  the  approval  of  human  drugs  is  an  alternative  approach  to  facilitate  individual  national  marketing
authorizations within the European Union. Basically, the MRP may be applied for all human drugs for which the centralized procedure is not obligatory.
The  MRP  is  applicable  to  the  majority  of  conventional  medicinal  products,  and  is  based  on  the  principle  of  recognition  of  an  already  existing  national
marketing authorization by one or more member states. In the MRP, a marketing authorization for a drug already exists in one or more member states of the
E.U.  and  subsequently  marketing  authorization  applications  are  made  in  other  European  Union  member  states  by  referring  to  the  initial  marketing
authorization. The member state in which the marketing authorization was first granted will then act as the reference member state. The member states
where the marketing authorization is subsequently applied for act as concerned member states. After a product assessment is completed by the reference
member  state,  copies  of  the  report  are  sent  to  all  member  states,  together  with  the  approved  summary  of  product  characteristics,  labeling  and  package
leaflet.  The  concerned  member  states  then  have  90  days  to  recognize  the  decision  of  the  reference  member  state  and  the  summary  of  product
characteristics,  labeling  and  package  leaflet.  National  marketing  authorizations  within  individual  member  states  shall  be  granted  within  30  days  after
acknowledgement of the agreement

26

Should any member state refuse to recognize the marketing authorization by the reference member state, on the grounds of potential serious risk to public
health,  the  issue  will  be  referred  to  a  coordination  group.  Within  a  timeframe  of  60  days,  member  states  shall,  within  the  coordination  group,  make  all
efforts to reach a consensus. If this fails, the procedure is submitted to an EMA scientific committee for arbitration. The opinion of this EMA committee is
then forwarded to the Commission, for the start of the decision-making process. As in the centralized procedure, this process entails consulting various
European Commission Directorates General and the Standing Committee on Human Medicinal Products or Veterinary Medicinal Products, as appropriate.

For  countries  outside  of  the  European  Union,  such  as  countries  in  Eastern  Europe,  Latin  America  or  Asia,  the  requirements  governing  the  conduct  of
clinical trials, product licensing, pricing and reimbursement vary from country to country. In all cases, again, the clinical trials are conducted in accordance
with GCP and the other applicable regulatory requirements.

If  we  fail  to  comply  with  applicable  foreign  regulatory  requirements,  we  may  be  subject  to,  among  other  things,  fines,  suspension  of  clinical  trials,
suspension or withdrawal of regulatory approvals, product recalls, seizure of products, operating restrictions, and criminal prosecution.

Europe - Data Privacy

On May 25, 2018, the European General Data Protection Regulation, or GDPR, went into effect, implementing a broad data protection framework that
expanded the scope of EU data protection law, including to non-EU entities that process, or control the processing of, personal data relating to individuals
located in the EU, including clinical trial data.  The  GDPR sets out a number of requirements that must be complied with when handling the personal data
of  European  Union-based  data  subjects  including:  providing  expanded  disclosures  about  how  their  personal  data  will  be  used;  higher  standards  for
organizations  to  demonstrate  that  they  have  obtained  valid  consent  or  have  another  legal  basis  in  place  to  justify  their  data  processing  activities;  the
obligation to appoint data protection officers in certain circumstances; new rights for individuals to be “forgotten” and rights to data portability, as well as
enhanced  current  rights  (e.g.  access  requests);  the  principal  of  accountability  and  demonstrating  compliance  through  policies,  procedures,  training  and
audit; and a new mandatory data breach regime. In particular, medical or health data, genetic data and biometric data where the latter is used to uniquely
identify  an  individual  are  all  classified  as  “special  category”  data  under  the  GDPR  and  afforded  greater  protection  and  require  additional  compliance
obligations.  Further,  EU  member  states  have  a  broad  right  to  impose  additional  conditions—including  restrictions—on  these  data  categories.  This  is
because the GDPR allows EU member states to derogate from the requirements of the GDPR mainly in regard to specific processing situations (including
special category data and processing for scientific or statistical purposes). As the EU states continue to reframe their national legislation to harmonize with
the GDPR, we will need to monitor compliance with all relevant EU member states’ laws and regulations, including where permitted derogations from the
GDPR are introduced.

We will also be subject to evolving EU laws on data export, if we transfer data outside the EU to ourselves or third parties outside of the EU. The GDPR
only permits exports of data outside the EU where there is a suitable data transfer solution in place to safeguard personal data (e.g. the European Union
Commission  approved  Standard  Contractual  Clauses).  On  July  16,  2020,  the  Court  of  Justice  of  the  European  Union  or  the  CJEU,  issued  a  landmark
opinion  in  the  case  Maximilian  Schrems  vs.  Facebook  (Case  C-311/18),  called  Schrems  II.    This  decision  calls  into  question  certain  data  transfer
mechanisms as between the EU member states and the US.   The CJEU is the highest court in Europe and the Schrems II decision heightens the burden on
data  importers  to  assess  U.S.  national  security  laws  on  their  business  and  future  actions  of  EU  data  protection  authorities  are  difficult  to  predict.   
Consequently, there is some risk of any data transfers from the European Union being halted.   If we have to rely on third parties to carry out services for
us, including processing personal data on our behalf, we are required under GDPR to enter into contractual arrangements to help ensure that these third
parties only process such data according to our instructions and have sufficient security measures in place. Any security breach or non-compliance with our
contractual terms or breach of applicable law by such third parties could result in enforcement actions, litigation, fines and penalties or adverse publicity
and could cause customers to lose trust in us, which would have an adverse impact on our reputation and business.  Any contractual arrangements requiring
the transfer of personal data from the EU to us in the United States will require greater scrutiny and assessments as required under Schrems II and may have
an adverse impact on cross-border transfers of personal data, or increase costs of compliance.  The GDPR provides an enforcement authority to impose
large penalties for noncompliance, including the potential for fines of up to €20 million or 4% of the annual global revenues of the noncompliant company,
whichever  is  greater.    We  will  be  subject  to  the  GDPR  when  we  have  a  European  Union  presence  or  “establishment”  (e.g.,  EU  based  subsidiary  or
operations), when conducting clinical trials with EU based data subjects, whether the trials are conducted directly by us or through a vendor or partner, or
offering approved products or services to EU-based data subjects, regardless of whether involving a EU based subsidiary or operations.  

Pharmaceutical Coverage, Pricing, and Reimbursement

Sales  of  our  products  that  are  approved  by  the  FDA  will  depend,  in  part,  on  the  extent  to  which  the  products  will  be  covered  by  third-party  payors,
including government health programs in the United States such as Medicare and Medicaid, commercial health insurers, and managed care organizations.
The process for determining whether a payor will provide coverage for a product may be separate

27

 
 
 
from the process for setting the price or reimbursement rate that the payor will pay for the product once coverage is approved, and it is time consuming and
expensive to seek reimbursement from third-party payors. Third-party payors may limit coverage to specific products on an approved list, or formulary,
which might not include all of the approved products for a particular indication. Coverage may be more limited than the purposes for which the product is
approved by the FDA or regulatory authorities in other countries.

In  order  to  secure  coverage  and  reimbursement  for  any  product  that  might  be  approved  for  sale,  a  company  may  need  to  conduct  expensive
pharmacoeconomic studies in order to demonstrate the medical necessity and cost-effectiveness of the product, in addition to the costs required to obtain
FDA or other comparable regulatory approvals. A payor’s decision to provide coverage for a drug product does not imply that an adequate reimbursement
rate will be approved. Moreover, eligibility for reimbursement does not imply that any product will be paid for in all cases or at a rate that covers our costs,
including research, development, manufacture, sale and distribution. Interim payments for new products, if applicable, may also not be sufficient to cover
our costs and may not be made permanent. Payment rates may vary according to the use of the product and the clinical setting in which it is used, may be
based on payments allowed for lower cost products that are already reimbursed and may be incorporated into existing payments for other services. Net
prices for products may be reduced by mandatory discounts or rebates required by third-party payors and by any future relaxation of laws that presently
restrict imports of products from countries where they may be sold at lower prices than in the United States. In the U.S., third-party payors often rely upon
Medicare coverage policy and payment limitations in setting their own reimbursement policies, but they also have their own methods and approval process
apart from Medicare coverage and reimbursement determinations. Accordingly, one third-party payor’s determination to provide coverage for a product
does not assure that other payors will also provide coverage for the product.

In addition, the containment of healthcare costs has become a priority of federal and state governments and the prices of therapeutics have been a focus in
this  effort.  The  United  States  government,  state  legislatures  and  foreign  governments  have  shown  significant  interest  in  implementing  cost-containment
programs,  including  price  controls,  restrictions  on  reimbursement  and  requirements  for  substitution  of  generic  products.  Adoption  of  price  controls  and
cost-containment  measures,  and  adoption  of  more  restrictive  policies  in  jurisdictions  with  existing  controls  and  measures,  could  further  limit  our  net
revenue  and  results.  If  these  third-party  payors  do  not  consider  our  products  to  be  cost-effective  compared  to  other  therapies,  they  may  not  cover  our
products  after  approval  as  a  benefit  under  their  plans  or,  if  they  do,  the  level  of  payment  may  not  be  sufficient  to  allow  us  to  sell  our  products  on  a
profitable basis. Moreover, companion diagnostic tests require coverage and reimbursement separate and apart from the coverage and reimbursement for
their  companion  pharmaceutical  products.  Similar  challenges  to  obtaining  coverage  and  reimbursement  for  the  pharmaceutical  products  apply  to
companion diagnostics.

In  the  European  Union,  pricing  and  reimbursement  schemes  vary  widely  from  country  to  country.  Some  countries  provide  that  drug  products  may  be
marketed  only  after  a  reimbursement  price  has  been  agreed.  Some  countries  may  require  the  completion  of  additional  studies  that  compare  the  cost-
effectiveness of our product candidate to currently available therapies (so called health technology assessment, or HTA) in order to obtain reimbursement
or pricing approval. For example, the European Union provides options for its member states to restrict the range of drug products for which their national
health insurance systems provide reimbursement and to control the prices of medicinal products for human use. E.U. member states may approve a specific
price for a drug product or it may instead adopt a system of direct or indirect controls on the profitability of the company placing the drug product on the
market. Other member states allow companies to fix their own prices for drug products but monitor and control prescription volumes and issue guidance to
physicians to limit prescriptions. The downward pressure on health care costs in general, particularly prescription drugs, has become intense. As a result,
increasingly  high  barriers  are  being  erected  to  the  entry  of  new  products.  In  addition,  there  can  be  considerable  pressure  by  governments  and  other
stakeholders on prices and reimbursement levels, including as part of cost containment measures. Political, economic and regulatory developments may
further complicate pricing negotiations, and pricing negotiations may continue after reimbursement has been obtained. Reference pricing used by various
E.U. member states, and parallel distribution (arbitrage between low-priced and high-priced member states), can further reduce prices. Any country that has
price controls or reimbursement limitations for drug products may not allow favorable reimbursement and pricing arrangements. 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 product candidates that are approved for commercial marketing and distribution. Historically, therapeutic candidates launched
in the European Union do not follow price structures of the United States and generally tend to be significantly lower.

Other Healthcare Laws and Regulations

As we are commercializing COSELA and may commercialize other product candidates, we are subject to additional healthcare statutory and regulatory
requirements and enforcement by federal government and the states and foreign governments in the jurisdictions in which we conduct our business.
Healthcare providers, physicians and third-party payors play a primary role in the recommendation and prescription of COSELA and any other product
candidates for which we obtain marketing approval. Our arrangements with third-party payors and customers expose us to broadly applicable fraud and
abuse and other healthcare laws and regulations that constrain the business or financial arrangements and relationships through which we market, sell and
distribute any products for which we obtain marketing approval.

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Restrictions under applicable federal and state healthcare laws and regulations include the following:

• The federal Anti-Kickback Statute prohibits, among other things, any person from knowingly and willfully offering, 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. The federal Anti-Kickback Statute is subject to evolving interpretations. In the past, the government has enforced the federal Anti-
Kickback  Statute  to  reach  large  settlements  with  healthcare  companies  based  on  sham  consulting  and  other  financial  arrangements  with
physicians. A person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to have committed
a violation. In addition, the government may assert that a claim including items or services resulting from a violation of the federal Anti-
Kickback Statute constitutes a false or fraudulent claim for purposes of the civil False Claims Act;

• The federal civil and criminal false claims laws, including the civil False Claims Act, and civil monetary penalty laws, prohibit, among other
things,  knowingly  presenting  or  causing  the  presentation  of  a  false,  fictitious  or  fraudulent  claim  for  payment  to  the  U.S.  government,
knowingly  making,  using,  or  causing  to  be  made  or  used  a  false  record  or  statement  material  to  a  false  or  fraudulent  claim  to  the  U.S.
government, or from knowingly making a false statement to avoid, decrease or conceal an obligation to pay money to the U.S. government.
Actions  under  these  laws  may  be  brought  by  the  Attorney  General  or  as  a  qui  tam  action  by  a  private  individual  in  the  name  of  the
government. The federal government uses these laws, and the accompanying threat of significant liability, in its investigation and prosecution
of  pharmaceutical  and  biotechnology  companies  throughout  the  U.S.,  for  example,  in  connection  with  the  promotion  of  products  for
unapproved uses and other allegedly unlawful sales and marketing practices;

• The U.S. federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, created new federal, civil and criminal statutes that
prohibit  among  other  actions,  knowingly  and  willfully  executing,  or  attempting  to  execute,  a  scheme  to  defraud  any  healthcare  benefit
program, including private third-party payors, knowingly and willfully embezzling or stealing from a healthcare benefit program, willfully
obstructing a criminal investigation of a healthcare offense, and knowingly and willfully falsifying, concealing or covering up a material fact
or making any materially false, fictitious or fraudulent statement in connection with the delivery of or payment for healthcare benefits, items
or services. Similar to the federal Anti-Kickback Statute, a person or entity does not need to have actual knowledge of the statute or specific
intent to violate it in order to have committed a violation;

• The  Physician  Payments  Sunshine  Act,  enacted  as  part  of  the  Affordable  Care  Act  of  2010,  among  other  things,  imposes  reporting
requirements  on  manufacturers  of  FDA-approved  drugs,  devices,  biologics  and  medical  supplies  covered  by  Medicare,  Medicaid,  or  the
Children’s Health Insurance Program to report, on an annual basis, to the Centers for Medicare & Medicaid Services, or CMS, information
related  to  payments  and  other  transfers  of  value  to  physicians  (defined  to  include  doctors,  dentists,  optometrists,  podiatrists,  chiropractors
and, beginning in 2022 for payments and other transfers of value provided in the previous year, certain advanced non-physician health care
practitioners), teaching hospitals, as well as ownership and investment interests held by physicians and their immediate family members;

• HIPAA,  as  amended  by  the  Health  Information  Technology  for  Economic  and  Clinical  Health  Act,  or  HITECH,  and  their  respective
implementing regulations impose specified 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,”
defined  as  independent  contractors  or  agents  of  covered  entities,  which  include  certain  healthcare  providers,  health  plans,  and  healthcare
clearinghouses, that create, receive, maintain or transmit protected health information in connection with providing a service for or on behalf
of a covered entity. HITECH also increased the civil and criminal penalties that may be imposed against covered entities, 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 HIPAA and seek attorney’s fees and costs associated with pursuing federal civil actions;

• Analogous state and foreign laws and regulations, such as state anti-kickback and false claims laws, that may apply to sales or marketing
arrangements  and  claims  involving  healthcare  items  or  services  reimbursed  by  non-governmental  third-party  payors,  including  private
insurers;

•

State  laws  that  require  pharmaceutical  companies  to  comply  with  the  pharmaceutical  industry’s  voluntary  compliance  guidelines  and  the
relevant compliance guidance promulgated by the federal government and may require drug manufacturers to report information related to
payments and other transfers of value to physicians and other healthcare providers or marketing expenditures to the extent that those laws
impose requirements that are more stringent than the

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Physician Payments Sunshine Act, as well as state and local laws that require the registration of pharmaceutical sales representatives; and

•

State  laws  and  foreign  laws  and  regulations  (particularly  European  Union  laws  regarding  personal  data  relating  to  individuals  based  in
Europe)  that  govern  the  privacy  and  security  of  health  information  in  certain  circumstances,  many  of  which  differ  from  each  other  in
significant ways, thus complicating compliance efforts.

Moreover, in November 2020, the Department of Health and Human Services (“DHHS”) finalized significant changes to the regulations implementing the
Anti-Kickback Statute, as well as the Physician Self-Referral Law (Stark Law) and the civil monetary penalty rules regarding beneficiary inducements,
with  the  goal  of  offering  the  healthcare  industry  more  flexibility  and  reducing  the  regulatory  burden  associated  with  those  fraud  and  abuse  laws,
particularly with respect to value-based arrangements among industry participants. As noted below under “Healthcare Reform,” however, those final rules
may be potentially overturned under the Congressional Review Act following the change in control of the legislative and executive branches in January
2021.

Ensuring that our current and future business arrangements with third parties comply with applicable healthcare laws and regulations involve substantial
costs.  It  is  possible  that  governmental  authorities  may  conclude  that  our  business  practices  may  not  comply  with  current  or  future  statutes,  regulations,
agency guidance or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our operations are found to be in violation of
any of these laws or any other governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties,
including  monetary  damages,  fines,  disgorgement,  imprisonment,  loss  of  eligibility  to  obtain  approvals  from  the  FDA,  exclusion  from  participation  in
government contracting, healthcare reimbursement or other government programs, including Medicare and Medicaid, reputational harm, diminished profits
and future earnings, or additional reporting requirements if we become subject to a corporate integrity agreement or other agreement to resolve allegations
of non-compliance with any of these laws, and the curtailment or restructuring of our operations. If any of the physicians or other healthcare providers or
entities with whom we expect to do business is found to be not in compliance with applicable laws, they may be subject to criminal, civil or administrative
sanctions, including exclusions from government funded healthcare programs.

30

 
 
 
Healthcare Reform and potential changes to drug and healthcare laws

In the United States and some foreign jurisdictions, there have been, and continue to be, several legislative and regulatory changes and proposed changes
regarding the healthcare system that could prevent or delay marketing approval of product and therapeutic candidates, restrict or regulate post-approval
activities,  and  affect  the  ability  to  profitably  sell  product  and  therapeutic  candidates  that  obtain  marketing  approval.  The  FDA’s  and  other  regulatory
authorities’  policies  may  change  and  additional  government  regulations  may  be  enacted  that  could  prevent,  limit  or  delay  regulatory  approval  of  our
product and therapeutic candidates. If we are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies,
or if we are not able to maintain regulatory compliance, we may lose any marketing approval that we otherwise may have obtained and we may not achieve
or sustain profitability, which would adversely affect our business, prospects, financial condition and results of operations. Moreover, among policy makers
and payors in the United States and elsewhere, there is significant interest in promoting changes in healthcare systems with the stated goals of containing
healthcare costs, improving quality and/or expanding access.

For example, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act, or collectively the ACA,
was enacted in March 2010 and has had a significant impact on the health care industry in the U.S. The ACA expanded coverage for the uninsured while at
the same time containing overall healthcare costs. With regard to biopharmaceutical products, the ACA, among other things, addressed a new methodology
by which rebates owed by manufacturers under the Medicaid Drug Rebate Program are calculated for drugs that are inhaled, infused, instilled, implanted or
injected, increased the minimum Medicaid rebates owed by manufacturers under the Medicaid Drug Rebate Program and extended the rebate program to
individuals enrolled in Medicaid managed care organizations, established annual fees on manufacturers of certain branded prescription drugs, and created a
new  Medicare  Part  D  coverage  gap  discount  program.  Additionally,  on  December  20,  2019,  President  Trump  signed  the  Further  Consolidated
Appropriations  Act  for  2020  into  law  (P.L.  116-94)  that  includes  a  piece  of  bipartisan  legislation  called  the  Creating  and  Restoring  Equal  Access  to
Equivalent Samples Act of 2019 or the “CREATES Act.” The CREATES Act aims to address the concern articulated by both the FDA and others in the
industry that some brand manufacturers have improperly restricted the distribution of their products, including by invoking the existence of a REMS for
certain products, to deny generic product developers access to samples of brand products. Because generic product developers need samples to conduct
certain comparative testing required by the FDA, some have attributed the inability to timely obtain samples as a cause of delay in the entry of generic
products.  To  remedy  this  concern,  the  CREATES  Act  establishes  a  private  cause  of  action  that  permits  a  generic  product  developer  to  sue  the  brand
manufacturer  to  compel  it  to  furnish  the  necessary  samples  on  “commercially  reasonable,  market-based  terms.”  Whether  and  how  generic  product
developments will use this new pathway, as well as the likely outcome of any legal challenges to provisions of the CREATES Act, remain highly uncertain
and its potential effects on future competition for COSELA or any of our other future commercial products are unknown.

As another example, the 2021 Consolidated Appropriations Act signed into law on December 27, 2020 incorporated extensive healthcare provisions and
amendments to existing laws, including a requirement that all manufacturers of drugs and biological products covered under Medicare Part B report the
product’s average sales price, or ASP, to DHHS beginning on January 1, 2022, subject to enforcement via civil money penalties.  

Since its enactment, there have been executive, judicial and Congressional challenges to certain aspects of the ACA and we expect there will be additional
challenges and amendments to the ACA in the future. Members of the US Congress have indicated that they may continue to seek to modify, repeal or
otherwise  invalidate  all,  or  certain  provisions  of,  the  ACA.  For  example,  the  Tax  Cuts  and  Jobs  Act,  or  TCJA,  was  enacted  in  2017  and,  among  other
things, removed penalties, starting January 1, 2019, for not complying with the ACA’s individual mandate to carry health insurance, commonly referred to
as  the  “individual  mandate.”  In  December  2018,  a  U.S.  District  Court  Judge  in  the  Northern  District  of  Texas  ruled  that  the  individual  mandate  was  a
critical and inseverable feature of the ACA, and therefore, because it was repealed as part of the TCJA, the remaining provisions of the ACA were invalid
and the law in its entirety was unconstitutional. In December 2019, the U.S. Court of Appeals for the Fifth Circuit upheld the District Court ruling that the
individual mandate was unconstitutional but remanded the case back to the District Court to determine whether other reforms enacted as part of the ACA
but not specifically related to the individual mandate or health insurance could be severed from the rest of the ACA so as not to be declared invalid as well.
On  March  2,  2020,  the  United  States  Supreme  Court  granted  the  petitions  for  writs  of  certiorari  to  review  this  case  and  allocated  one  hour  for  oral
arguments,  which  occurred  on  November  10,  2020.  A  decision  from  the  Supreme  Court  is  expected  to  be  issued  in  spring  2021.  It  is  unclear  how  this
litigation and other efforts to repeal and replace the ACA will impact the implementation of the ACA, the pharmaceutical industry more generally, and our
business.  Complying  with  any  new  legislation  or  reversing  changes  implemented  under  the  ACA  could  be  time-intensive  and  expensive,  resulting  in  a
material adverse effect on our business.

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In  addition,  other  legislative  changes  have  been  proposed  and  adopted  in  the  United  States  since  the  ACA  that  affect  health  care  expenditures.  These
changes include aggregate reductions to Medicare payments to providers of up to 2% per fiscal year pursuant to the Budget Control Act of 2011, which
began in 2013 and will remain in effect through 2030 unless additional Congressional action is taken. The Coronavirus Aid, Relief, and Economic Security
Act, or the CARES Act, which was signed into law on March 27, 2020 and was designed to provide financial support and resources to individuals and
businesses affected by the COVID-19 pandemic, suspended the 2% Medicare sequester from May 1, 2020 through December 31, 2020, and extended the
sequester  by  one  year,  through  2030,  in  order  to  offset  the  added  expense  of  the  2020  cancellation.  The  2021  Consolidated  Appropriations  Act  was
subsequently signed into law on December 27, 2020 and extends the CARES Act suspension period to March 31, 2021.

Moreover,  there  has  been  heightened  governmental  scrutiny  over  the  manner  in  which  manufacturers  set  prices  for  their  marketed  products,  which  has
resulted in several Congressional inquiries and proposed and enacted federal and state legislation designed to, among other things, bring more transparency
to  product  pricing,  review  the  relationship  between  pricing  and  manufacturer  patient  programs,  and  reform  government  program  reimbursement
methodologies for drug products. DHHS, has solicited feedback on some of various measures intended to lower drug prices and reduce the out of pocket
costs of drugs and implemented others under its existing authority. For example, in May 2019, DHHS issued a final rule to allow Medicare Advantage
plans the option to use step therapy for Part B drugs beginning January 1, 2020. This final rule codified a DHHS policy change that was effective January
1,  2019.  As  part  of  the  Trump  Administration’s  so-called  “Blueprint”  to  lower  drug  prices,  DHHS  and  FDA  also  released  on  July  31,  2019  their  Safe
Importation Action Plan proposing two different pathways for the importation of foreign drug products. One pathway focuses on the importation of certain
drugs  from  Canada,  which  required  the  agencies  to  go  through  notice-and-comment  rulemaking,  while  the  second  pathway  allows  manufacturers  to
distribute their drugs manufactured abroad and was released as agency policy in an FDA guidance document first issued in December 2019. FDA’s notice
of proposed rulemaking to implement a system whereby state governmental entities could lawfully import and distribute prescription drugs sourced from
Canada  was  published  at  the  end  of  December  2019  and  in  September  2020,  the  rulemaking  was  finalized  by  FDA.  Those  new  regulations  became
effective  on  November  30,  2020,  although  the  impact  of  such  future  programs  is  uncertain,  in  part  because  lawsuits  have  been  filed  challenging  the
government’s authority to promulgate them. The final regulations may also be vulnerable to being overturned by a joint resolution of disapproval from
Congress under the procedures set forth in the Congressional Review Act, which could be applied to regulatory actions taken by the Trump Administration
on or after August 21, 2020 (i.e., in the last 60 days of legislative session of the 116th Congress). Congress and the executive branch have each indicated
that  it  will  continue  to  seek  new  legislative  and/or  administrative  measures  to  control  drug  costs,  making  this  area  subject  to  ongoing  uncertainty.  In
addition, the probability of success of other policies enacted over the final months of the Trump Administration and their impact on the U.S. prescription
drug  marketplace  is  unknown.  There  are  likely  to  be  political  and  legal  challenges  associated  with  implementing  these  reforms  as  they  are  currently
envisioned, and the January 20, 2021 transition to a new Democrat-led presidential administration created further uncertainty. Following his inauguration,
President Biden took immediate steps to order a regulatory freeze on all pending substantive executive actions in order to permit incoming department and
agency heads to review whether questions of fact, policy, and law may be implicated and to determine how to proceed.

Individual states in the United States have also increasingly passed legislation and implemented regulations designed to control pharmaceutical product
pricing,  including  price  or  patient  reimbursement  constraints,  discounts,  restrictions  on  certain  product  access  and  marketing  cost  disclosure  and
transparency  measures,  and,  in  some  cases,  designed  to  encourage  importation  from  other  countries  and  bulk  purchasing.  In  December  2020,  the  U.S.
Supreme  Court  held  unanimously  that  federal  law  does  not  preempt  the  states’  ability  to  regulate  pharmaceutical  benefit  managers  (PBMs)  and  other
members of the health care and pharmaceutical supply chain, an important decision that may lead to further and more aggressive efforts by states in this
area.

We cannot predict the likelihood, nature or extent of government regulation that may arise from future legislation or administrative or executive action,
either in the United States or abroad. We expect that additional state and federal healthcare reform measures will be adopted in the future, any of which
could limit the amounts that federal and state governments will pay for healthcare products and services, including COSELA and any future products for
which we secure marketing approval.

Human Capital

As of December 31, 2020, we had 122 full-time employees, including 57 in research and development and 65 in general and administrative functions. Of
these full-time employees, 35 had an MD, PhD or PharmD. We have no collective bargaining agreements with our employees, and we have not experienced
any  work  stoppages.  We  expect  headcount  growth  to  continue  for  the  foreseeable  future,  particularly  as  we  continue  to  develop  our  products  and
commercialize COSELA. We consider our relations with our employees to be good.

Diversity and Inclusion

Diversity  and  inclusion  are  an  important  part  of  our  culture.  We  seek  to  build  a  diverse  and  inclusive  workplace  where  we  can  leverage  our  collective
cognitive and other diversity. In 2020, we conducted pay equity analysis and we determined that we have pay equity across gender and race for people in
similar jobs, accounting for factors such as role, experience, education and level. We also

32

have a Culture Committee comprised of employees across departments, who focus on employee engagement and other initiatives throughout the year.

Compensation and Benefits

We offer competitive compensation to attract and retain the best people. Our total compensation package includes market-competitive salary, bonuses, and
equity. We offer full-time employees equity at the time of hire and through annual equity grants because we want them to consider themselves to have an
ownership  stake  in  the  company  and  to  be  committed  to  our  long-term  success.  We  offer  a  wide  range  of  benefits  across  areas  such  as  health,  family,
finance, community, and time off, including healthcare and wellness benefits, a 401(k) plan, access to legal services, family leave, and paid time off.

Protection and Support of our Employees During the COVID-19 Pandemic

In response to the COVID-19 pandemic, we put in place the following safety measures for our employees, patients, healthcare professionals, and suppliers
to limit exposure and protect the health of those we employ and serve. These measures included, but were not limited to, we substantially restricted travel,
supplied personal protective equipment to employees, limited access to our headquarters and asked most of our staff to work remotely. On short notice, we
transitioned most of our employees to working remotely and added bandwidth and VPN capacity to our infrastructure. In addition, we continued to enhance
our  cybersecurity  protections.  As  a  company,  we  supported  our  employees  by  maintaining  base  compensation  throughout  the  year,  and  our  year-end
practices  around  merit,  bonus  and  equity  were  not  impacted.  We  continue  to  build  a  strong  supportive  culture  around  values  of  patients  first,  integrity,
respect and collaboration. Our efforts to develop our culture will last far beyond this pandemic.  

Available Information

Our internet address is www.g1therapeutics.com.  Our annual reports on Form 10‑K, quarterly reports on Form 10‑Q, current reports on Form 8‑K, and all
amendments to those reports, are available to you free of charge through the Investors section of our website as soon as reasonably practicable after such
materials have been electronically filed with, or furnished to, the Securities and Exchange Commission, or the SEC.  The information found on our website
is not part of this or any other report we file with, or furnish to, the SEC.

In addition, the SEC maintains an internet site that contains reports, proxy and information statements, and other information regarding issuers that file
electronically with the SEC.  Our filings with the SEC may be accessed through the SEC’s website at http://www.sec.gov.

33

Item 1A. Risk Factors.

Investing in our common stock involves a high degree of risk. You should carefully consider the risks and uncertainties described below, together with all of
the  other  information  in  this  Annual  Report,  including  our  financial  statements  and  related  notes,  before  investing  in  our  common  stock.  The  risks  and
uncertainties described below are not the only ones we face. Additional risks and uncertainties that we are unaware of, or that we currently believe are not
material,  may  also  become  important  factors  that  affect  us.  If  any  of  the  following  risks  occur,  our  business,  operating  results  and  prospects  could  be
materially harmed. In that event, the price of our common stock could decline, and you could lose part or all of your investment.

Summary Risk Factors

Below is a summary of the principal risk factors in each risk category that could adversely affect our business, operations, and financial results.

Risks related to the commercialization of our product candidates

COSELA may fail to achieve the degree of market acceptance for commercial success.

COSELA may become subject to unfavorable pricing regulations or third-party coverage and reimbursement policies.

• We depend almost entirely on the commercial success of COSELA.
•
• We face substantial competition.
•
• We may not be able to effectively sell or market our product candidates, if approved, or generate product revenues.
•
•
•
•

Product liability lawsuits against us could cause us to incur substantial liabilities.
If we or BI fail to adequately perform under the Co-Promotion Agreement, our business would be adversely affected.
If we violate the guidelines pertaining to promotion and advertising we may be subject to disciplinary action.
Our relationships with customers and third-party payors will be subject to applicable anti-kickback, fraud and abuse and other healthcare laws
and regulations, which could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm and diminished profits and
future earnings.

Risks related to development of our product candidates:

Initial success in our ongoing clinical trials may not be indicative of results obtained when these trials are completed.
If we are unable to successfully develop and commercialize our product candidates, our business will be materially harmed.
Our development of a CDK4/6 to decrease the incidence of chemotherapy-induced myelosuppression may never lead to a marketable product.
Delays in the enrollment of patients in clinical trials, may delay or prevent our plans.

•
•
•
•
• We may incur additional costs or experience delays in completing the development and may ultimately be unable to obtain the approval of our

product candidates.

Risks related to our financial position and need for additional capital:

Our limited operating history may make it difficult for you to evaluate the success of our business.

• We expect to incur losses for the foreseeable future and may never achieve or maintain profitability.
•
• We will need substantial additional funding.
•

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

Risks related to marketing approval of our product candidates:

•

•

•

If we are not able to obtain, or if there are delays in obtaining, required marketing approvals, we will not be able to commercialize our product
candidates, and our ability to generate revenue will be materially impaired.
Our product candidates may cause undesirable side effects that could delay or prevent their marketing approval, limit the commercial profile of
an approved label, or result in significant negative consequences following marketing approval, if any.
Any product candidate for which we obtain marketing approval will be subject to extensive post-marketing regulatory requirements and could be
subject to post-marketing restrictions or 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 our products, when and if any of them are approved.

34

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Risks related to our dependence on third parties

• We rely on, and expect to continue to rely on, third parties to conduct our clinical trials for our product candidates. If these third parties do not
successfully carry out their contractual duties, comply with regulatory requirements or meet expected deadlines, we may not be able to obtain
marketing approval for or commercialize our product candidates, and our business could be substantially harmed.

• We  have  entered  into  license  agreements  for  lerociclib,  a  license  agreement  for  the  development  of  COSELA  in  greater  China,  and  intend  to
continue to use third-party collaborators to help us develop and commercialize any new products, and our ability to commercialize such products
could be impaired or delayed if these collaborations are unsuccessful.

• We contract with third parties for the manufacture of our product candidates for preclinical studies and clinical trials and expect to continue to do
so for commercialization. This reliance on third parties increases the risk that we will not have sufficient quantities of our product candidates or
drugs or such quantities at an acceptable cost, which could delay, prevent or impair our development or commercialization efforts.

Risks related to our intellectual property

•

•

If  we  are  unable  to  obtain  and  maintain  intellectual  property  protection  for  our  technology  and  products,  or  if  the  scope  of  the  intellectual
property protection obtained is not sufficiently broad, our competitors could commercialize technology and products similar or identical to ours,
and our ability to successfully commercialize our technology and products may be impaired and, if we infringe the valid patent rights of others,
we may be prevented from making, using or selling our products or may be subject to damages or penalties.
Some intellectual property may have been discovered through government funded programs and thus may be subject to federal regulations such
as “march-in” rights, certain reporting requirements and a preference for U.S.-based companies. Compliance with such regulations may limit our
exclusive rights, and limit our ability to contract with non-U.S. manufacturers.

• We may become involved in administrative adversarial proceedings in the U.S. PTO or in the patent offices of foreign countries brought by a
third party to attempt to cancel or invalidate our patent rights, which could be expensive, time consuming and cause a loss of patent rights.
• We may have to file one or more lawsuits in court to prevent a third party from selling a product or using a product in a manner that infringes our

patent, which could be expensive, time consuming and unsuccessful, and ultimately result in the loss of our proprietary market.

Risks related to employee matters, managing growth and other risks related to our business

• We currently have a limited number of employees, and our future success depends on our ability to retain key executives and to attract, retain and

motivate qualified personnel.

• We expect to potentially implement sales, marketing and distribution capabilities, and as a result, we may encounter difficulties in managing our

growth, which could disrupt our operations.

• We  face  risks  related  to  health  epidemics  and  outbreaks,  including  the  novel  coronavirus  (COVID-19),  which  could  significantly  disrupt  our

preclinical studies and clinical trials.

Risks related to our common stock

•
•

•

The price of our common stock may be volatile and fluctuate substantially.
Provisions in our corporate charter documents and under Delaware law could make an acquisition of our company, which may be beneficial to
our stockholders, more difficult and may prevent attempts by our stockholders to replace or remove our current management.
Our certificate of incorporation includes a forum selection clause, which could limit our stockholders’ ability to obtain a favorable judicial forum
for disputes with us.

For a more complete discussion of the material risks facing our business, see below.

35

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Risks related to the commercialization of our product candidates

We depend almost entirely on the commercial success of COSELA. There is no assurance that the launch of COSELA in the U.S. will occur on our
anticipated timing. There is no assurance that our commercialization efforts in the U.S. with respect to COSELA will be successful or that we will be
able to generate revenues at the levels or within the timing we expect or at the levels or within the timing necessary to support our goals.

To  date,  we  have  not  generated  any  revenues  from  the  sale  of  COSELA.  COSELA  was  approved  by  the  FDA  in  February  2021  but  is  not  yet
commercially available. We plan to make COSELA available in the U.S. in March 2021. There is no assurance that the launch of COSELA will occur on
the timing we anticipate. We may encounter delays or hurdles related to our launch that affect timing.

Our business currently depends heavily on our ability to successfully commercialize COSELA in the U.S. to treat patients with ES-SCLC. We may
never be able to successfully commercialize COSELA or meet our expectations with respect to revenues. We have never marketed, sold or distributed for
commercial  use  any  pharmaceutical  product.  There  is  no  guarantee  that  the  infrastructure,  systems,  processes,  policies,  personnel,  relationships  and
materials we have built in anticipation of the launch and commercialization of COSELA in the U.S. will be sufficient for us to achieve success at the levels
we expect. Additionally, healthcare providers may not accept a new treatment paradigm for patients with ES-SCLC. We may also encounter challenges
related  to  reimbursement  of  COSELA,  even  if  we  have  positive  early  indications  from  payors,  including  potential  limitations  in  the  scope,  breadth,
availability,  or  amount  of  reimbursement  covering  COSLEA.  Similarly,  healthcare  settings  or  patients  may  determine  that  the  financial  burdens  of
treatment are not acceptable. Our results may also be negatively impacted if we have not adequately sized our field teams or our physician segmentation
and targeting strategy is inadequate or if we encounter deficiencies or inefficiencies in our infrastructure or processes. Any of these issues could impair our
ability  to  successfully  commercialize  COSELA  or  to  generate  substantial  revenues  or  profits  or  to  meet  our  expectations  with  respect  to  the  amount  or
timing  of  revenue  or  profits.  Any  issues  or  hurdles  related  to  our  commercialization  efforts  may  materially  adversely  affect  our  business,  results  of
operations, financial condition and prospects. There is no guarantee that we will be successful in our launch or commercialization efforts with respect to
COSELA.

Our COSELA commercialization efforts may fail to achieve the degree of market acceptance by physicians, patients, third-party payors and others in
the medical community necessary for commercial success.

Our COSELA commercialization efforts may fail to gain sufficient market acceptance by physicians, patients, third-party payors and others in the medical
community. If COSELA or our other product candidates do not achieve an adequate level of acceptance, we may not generate significant product revenues
and we may not become profitable. The degree of market acceptance of COSELA and our other product candidates, if approved for commercial sale, will
depend on a number of factors, including:

•
•
•
•
•
•
•
•
•
•
•
•
•

•

the timing of our receipt of any marketing approvals;
the terms of any approvals and the countries in which approvals are obtained;
the efficacy and safety and potential advantages and disadvantages compared to alternative treatments;
the prevalence and severity of any side effects associated with our products;
the indications for which our products are approved;
adverse publicity about our products or favorable publicity about competing products;
the approval of other products for the same indications as our products;
our ability to offer our products for sale at competitive prices;
the convenience and ease of administration compared to alternative treatments;
the willingness of the target patient population to try new therapies and of physicians to prescribe these therapies;
the success of our physician education programs;
the strength of our marketing and distribution support;
the availability of third-party coverage and adequate reimbursement, including patient cost-sharing programs such as copays and deductibles;
and
any restrictions on the use of our products together with other medications.

If  COSELA  and  any  other  product  we  commercialize  fails  to  achieve  market  acceptance,  it  could  have  a  material  and  adverse  effect  on  our  business,
financial condition, results of operation and prospects.

We  face  substantial  competition,  which  may  result  in  others  discovering,  developing  or  commercializing  competing  products  before  or  more
successfully than we do.

The development and commercialization of new drug products is highly competitive. We face competition with respect to our current product candidates
and will face competition with respect to any product candidates that we may seek to develop or commercialize in the future, from major pharmaceutical
companies, specialty pharmaceutical companies and biotechnology companies worldwide.

36

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
There  are  a  number  of  large  pharmaceutical  and  biotechnology  companies  that  currently  market  and  sell  products  or  are  pursuing  the  development  of
products for the treatment of the disease indications for which we are developing our product candidates. Some of these competitive products and therapies
are  based  on  scientific  approaches  that  are  the  same  as  or  similar  to  our  approach,  and  others  are  based  on  entirely  different  approaches.  Potential
competitors also include academic institutions, government agencies and other public and private research organizations that conduct research, seek patent
protection and establish collaborative arrangements for research, development, manufacturing and commercialization.

Specifically,  there  are  a  large  number  of  companies  developing  or  marketing  treatments  for  cancer,  including  many  major  pharmaceutical  and
biotechnology companies. COSELA competes with (a) existing growth factor support treatments, and (b)  multiple approved drugs or drugs that may be
approved  in  the  future  for  indications  for  which  we  may  develop  COSELA.  If  rintodestrant  is  approved,  it  would  compete  with  (a)  the  approved
intramuscular  SERD,  fulvestrant,  being  marketed  by  AstraZeneca,  (b)  if  approved,  other  oral  SERDs  in  development  by  Radius  Health,  Genentech,
AstraZeneca, Sanofi, Eli Lilly and Zentalis; and (c) multiple approved drugs or drugs that may be approved in the future for indications for which we may
develop rintodestrant.

Our commercial opportunity could be reduced or eliminated if our competitors develop and commercialize products that are safer, more effective, have
fewer or less severe side effects, are more convenient or are less expensive than any products that we may develop. Our competitors also may obtain FDA
or other marketing approval for their products more rapidly than we may obtain approval for ours, which could result in our competitors establishing a
strong market position before we are able to enter the market and/or slow our marketing approval. Some of the important competitive factors affecting the
success of all of our product candidates, if approved, are likely to be their efficacy, safety, convenience, price and the availability of reimbursement from
government and other third-party payors.

Many of the companies against which we are competing or against which we may compete in the future have significantly greater financial resources and
expertise  in  research  and  development,  manufacturing,  preclinical  studies,  conducting  clinical  trials,  obtaining  marketing  approvals  and  marketing
approved  products  than  we  do.  Mergers  and  acquisitions  in  the  pharmaceutical  and  biotechnology  industries  may  result  in  even  more  resources  being
concentrated among a smaller number of our competitors. Smaller and early-stage companies may also prove to be significant competitors, particularly
through  collaborative  arrangements  with  large  and  established  companies.  These  third  parties  compete  with  us  in  recruiting  and  retaining  qualified
scientific  and  management  personnel,  establishing  clinical  trial  sites  and  patient  registration  for  clinical  trials,  as  well  as  in  acquiring  technologies
complementary to, or necessary for, our programs.

Even if we are able to commercialize COSELA and our other product candidates, such drugs may become subject to unfavorable pricing regulations or
third-party coverage and reimbursement policies, which would harm our business.

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

Our ability to commercialize any product candidates successfully also will depend in part on the extent to which coverage and reimbursement for these
product  candidates  and  related  treatments  will  be  available  from  government  authorities,  private  health  insurers  and  other  organizations.  In  the  United
States, the principal decisions about reimbursement for new medicines are typically made by the CMS, an agency within the U.S. Department of Health
and Human Services, as CMS decides whether and to what extent a new medicine will be covered and reimbursed under Medicare. Private payors tend to
follow CMS to a substantial degree. It is difficult to predict what CMS will decide with respect to reimbursement. Reimbursement agencies in Europe may
be  more  conservative  than  CMS.  For  example,  a  number  of  cancer  drugs  are  generally  covered  and  paid  for  in  the  United  States,  but  have  not  been
approved for reimbursement in certain European countries. A primary trend in the U.S. healthcare industry and elsewhere is cost containment. Government
authorities and third-party payors have attempted to control costs by limiting coverage and the amount of payments for particular drugs. Increasingly, third-
party payors are requiring that drug companies provide them with predetermined discounts from list prices and are challenging the prices charged for drugs.
We cannot be sure that coverage will be available for any product candidate that we commercialize and, if coverage is available, the level of payments.
Reimbursement  may  impact  the  demand  for,  or  the  price  of,  any  product  candidate  for  which  we  obtain  marketing  approval.  If  reimbursement  is  not
available or is available only to limited levels, we may not be able to successfully commercialize any product candidate for which we obtain marketing
approval.

37

In  addition  to  CMS  and  private  payors,  professional  organizations  such  as  the  National  Comprehensive  Cancer  Network  and  the  American  Society  of
Clinical  Oncology  can  influence  decisions  about  reimbursement  for  new  medicines  by  determining  standards  of  care.  In  addition,  many  private  payors
contract with commercial vendors who sell software that provide guidelines that attempt to limit utilization of, and therefore reimbursement for, certain
products deemed to provide limited benefit to existing alternatives. Such organizations may set guidelines that limit reimbursement or utilization of our
products.

There may be significant delays in obtaining reimbursement for newly approved drugs, and coverage may be more limited than the purposes for which the
drug is approved by the FDA or similar regulatory authorities outside the United States. Moreover, eligibility for reimbursement does not imply that any
drug  will  be  paid  for  in  all  cases  or  at  a  rate  that  covers  our  costs,  including  research,  development,  manufacture,  sale  and  distribution.  Interim
reimbursement levels for new drugs, if applicable, may also not be sufficient to cover our costs and may not be made permanent. Reimbursement rates may
vary according to the use of the drug and the clinical setting in which it is used, may be based on reimbursement levels already set for lower cost drugs and
may  be  incorporated  into  existing  payments  for  other  services.  Net  prices  for  drugs  may  be  reduced  by  mandatory  discounts  or  rebates  required  by
government healthcare programs or private payors and by any future relaxation of laws that presently restrict imports of drugs from countries where they
may be sold at lower prices than in the United States. Our inability to promptly obtain coverage and profitable payment rates from both government-funded
and private payors for any approved drugs that we develop could have a material adverse effect on our operating results, our ability to raise capital needed
to commercialize drugs and our overall financial condition.

If  we  are  unable  to  establish  effective  sales  or  marketing  capabilities  or  enter  into  agreements  with  third  parties  to  sell  or  market  our  product
candidates, we may not be able to effectively sell or market our product candidates, if approved, or generate product revenues.

We have limited infrastructure for the sale, marketing or distribution of drugs. To achieve commercial success for COSELA or any future approved product
candidate for which we retain sales and marketing responsibilities, we must build our sales, marketing, managerial, and other non-technical capabilities or
make arrangements with third parties to perform these services. There are risks involved with both establishing our own sales and marketing capabilities
and  entering  into  arrangements  with  third  parties  to  perform  these  services.  For  example,  recruiting  and  training  a  sales  force  is  expensive  and  time
consuming and could delay any drug launch. If the commercial launch of a product candidate for which we recruit a sales force and establish marketing
capabilities is delayed or does not occur for any reason, we would have prematurely or unnecessarily incurred these commercialization expenses. This may
be costly, and our investment would be lost if we cannot retain or reposition our sales and marketing personnel.

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

•
•
•

•

our inability to recruit and retain adequate numbers of effective sales and marketing personnel;
the inability of sales personnel to obtain access to physicians or persuade adequate numbers of physicians to prescribe any future drugs;
the lack of complementary drugs to be offered by sales personnel, which may put us at a competitive disadvantage relative to companies with
more extensive product lines; and
unforeseen costs and expenses associated with creating an independent sales and marketing organization.

If we enter into arrangements with third parties to perform sales, marketing and distribution services, our drug revenues or the profitability of these drug
revenues to us are likely to be lower than if we were to market and sell any product candidates that we develop ourselves. In addition, we may not be
successful in entering into arrangements with third parties to sell and market our product candidates or may be unable to do so when needed or on terms
that are favorable to us. We likely will have little control over such third parties, and any of them may fail to devote the necessary resources and attention to
sell and market our product candidates effectively. If we do not establish sales and marketing capabilities successfully, either on our own or in collaboration
with third parties, we will not be successful in commercializing our product candidates that receive marketing approval or any such commercialization may
experience delays or limitations. If we are not successful in commercializing our product candidates, either on our own or through collaborations with one
or more third parties, our business, results of operations, financial condition and prospects will be materially adversely affected.

Product liability lawsuits against us could cause us to incur substantial liabilities and to limit commercialization of any products that we may develop.

We  face  an  inherent  risk  of  product  liability  exposure  related  to  the  evaluation  of  our  product  candidates  in  human  clinical  trials  and  will  face  an  even
greater  risk  if  we  commercially  sell  any  products  that  we  may  develop.  If  we  cannot  successfully  defend  ourselves  against  claims  that  our  product
candidates or products caused injuries, we will incur substantial liabilities. Regardless of merit or eventual outcome, liability claims may result in:

•
•

decreased demand for any product candidates or products that we may develop;
injury to our reputation and significant negative media attention;

38

 
 
 
 
 
 
• withdrawal of clinical trial participants;
•
•
•
•
•

significant costs to defend the related litigation;
substantial monetary awards to trial participants or patients;
loss of revenue;
reduced resources of our management to pursue our business strategy; and
the inability to successfully commercialize any products that we may develop.

We  currently  hold  $10.0  million  in  product  liability  insurance  coverage  in  the  aggregate,  with  a  per  incident  limit  of  $10.0  million,  which  may  not  be
adequate to cover all liabilities that we may incur. We may need to increase our insurance coverage as we expand our clinical trials or if we commence
commercialization  of  our  product  candidates.  Insurance  coverage  is  increasingly  expensive.  We  may  not  be  able  to  maintain  insurance  coverage  at  a
reasonable cost or in an amount adequate to satisfy any liability that may arise.

Our  Co-Promotion  Agreement  with  Boehringer  Ingelheim  Pharmaceuticals,  Inc.  or  BI,  is  important  to  our  business.  If  we  or  BI  fail  to  adequately
perform  under  the  Co-Promotion  Agreement,  or  if  we  or  BI  terminate  the  Co-Promotion  Agreement,  the  commercialization  of  COSELA  and  our
business would be adversely affected.

The Co-Promotion Agreement is important to our business, and our ability to fully commercialize COSELA in the United States is dependent upon this
agreement.

Under the terms of the Co-Promotion Agreement, BI will provide salesforce engagements for COSELA within the United States and Puerto Rico utilizing
BI’s  own  sales  and  marketing  personnel.  BI  will  hire  and  maintain,  and  be  solely  responsible  for,  its  own  personnel  conducting  the  promotion  services
described in the Co-Promotion Agreement, including ensuring that such personnel adhere to certain guidelines and practices with respect to the promotion
of COSELA. The Company will lead marketing, market access, and medical engagement initiatives under the Co-Promotion Agreement. The Company
will  also  be  responsible  for  the  costs  of  maintaining  regulatory  approval  of,  manufacturing,  supplying  and  distributing  COSELA,  and  will  prepare  and
control the content of COSELA marketing and training materials, subject to review and feedback by BI.

Subject  to  early  termination,  the  Co-Promotion  Agreement  will  expire  on  the  third  anniversary  of  the  first  commercial  sale.  Subject  to  specified  notice
periods and specified limitations, either party may terminate the Co-Promotion Agreement in the event of (i) uncured material breach by the other party, (ii)
COSELA not having obtained regulatory approval from the FDA by September 30, 2021, (iii) withdrawal of COSELA from the market by the Company as
a  result  of  a  decision  by  the  FDA  or  a  material  safety  concern;  (iv)  the  bankruptcy,  insolvency,  dissolution  or  winding  up  of  the  other  party,  or  (v)  for
convenience  (which  termination  right,  in  the  case  of  BI,  may  only  be  exercised  six  months  after  first  commercial  sale).  In  addition,  the  Company  may
terminate the Co-Promotion Agreement if the Company receives feedback from a regulatory authority that the Company reasonably believes indicates that
COSELA is unlikely to receive regulatory approval. BI may also terminate the Co-Promotion Agreement if the first commercial sale has not occurred by
September 30, 2021 or upon a change of control of the Company.

Termination  of  the  Co-Promotion  Agreement  could  cause  significant  delays  and  disruption  to  our  commercialization  efforts  for  COSELA.  If  the  Co-
Promotion Agreement is terminated, we may need to seek additional financing to support our commercialization efforts or find another third party to enter
into a new collaboration agreement. Any alternative collaboration could also be on less favorable terms to us. If the Co-Promotion Agreement is terminated
our business would be adversely affected.

If we or any of our current or future partners violate the guidelines pertaining to promotion and advertising of COSELA or any of our other product
candidates,  if  approved,  we  or  they  may  be  subject  to  disciplinary  action  by  the  FDA's  Office  of  Prescription  Drug  Promotion  (OPDP)  or  other
regulatory authorities.

The FDA's Office of Prescription Drug Promotion (OPDP), is responsible for reviewing prescription drug advertising and promotional labeling to ensure
that  the  information  contained  in  these  materials  is  not  false  or  misleading.  There  are  specific  disclosure  requirements,  and  the  applicable  regulations
mandate that advertisements cannot be false or misleading or omit material facts about the product. Prescription drug promotional materials must present a
fair  balance  between  the  drug's  effectiveness  and  the  risks  associated  with  its  use.  Most  warning  letters  from  OPDP  cite  inadequate  disclosure  of  risk
information.

OPDP  prioritizes  its  actions  based  on  the  degree  of  risk  to  the  public  health,  and  often  focuses  on  newly  introduced  drugs  and  those  associated  with
significant health risks. There are two types of letters that OPDP typically sends to companies that violate its drug advertising and promotional guidelines:
untitled letters and warning letters. In the case of an untitled letter, OPDP typically alerts the drug company of the violation and issues a directive to refrain
from future violations, but does not typically demand other corrective action. A warning letter is typically issued in cases that are more serious or where the
company is a repeat offender. Although we have not received any such letters from OPDP, we or any of our current or future partners may inadvertently
violate OPDP's guidelines in the future and be subject to an OPDP untitled letter or warning letter, which may have a negative impact on our business.

39

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

As we are commercializing COSELA and may commercialize other product candidates, we are subject to additional healthcare statutory and regulatory
requirements  and  enforcement  by  federal  government  and  the  states  and  foreign  governments  in  the  jurisdictions  in  which  we  conduct  our  business.
Healthcare providers, physicians and third-party payors play a primary role in the recommendation and prescription of COSELA and any other product
candidates for which we obtain marketing approval. Our arrangements with third-party payors and customers expose us to broadly applicable fraud and
abuse and other healthcare laws and regulations that constrain the business or financial arrangements and relationships through which we market, sell and
distribute any products for which we obtain marketing approval. Restrictions under applicable federal and state healthcare laws and regulations include the
following:

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•

•

•

the  federal  Anti-Kickback  Statute  prohibits,  among  other  things,  persons  from  knowingly  and  willfully  soliciting,  offering,  receiving  or
paying remuneration, directly or indirectly, in cash or in kind, to induce or reward, or in return for, either the referral of an individual for, or
the purchase, order or recommendation of, any good or service, for which payment may be made under a federal healthcare program such as
Medicare and Medicaid; a person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to
have committed a violation;
the  federal  false  claims  laws  impose  criminal  and  civil  penalties,  including  civil  whistleblower  or  qui  tam  actions,  against  individuals  or
entities for knowingly presenting, or causing to be presented, to the federal government, claims for payment that are false or fraudulent or
making a false statement to avoid, decrease or conceal an obligation to pay money to the federal government; in addition, the government
may  assert  that  a  claim  including  items  and  services  resulting  from  a  violation  of  the  federal  Anti-Kickback  Statute  constitutes  a  false  or
fraudulent claim for purposes of the False Claims Act;
the  federal  Health  Insurance  Portability  and  Accountability  Act  of  1996,  or  HIPAA,  imposes  criminal  and  civil  liability  for  executing  a
scheme to defraud any healthcare benefit program, or knowingly and willfully falsifying, concealing or covering up a material fact or making
any materially false statement in connection with the delivery of or payment for healthcare benefits, items or services; similar to the federal
Anti-Kickback Statute, a person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to have
committed a violation;
the  federal  physician  payment  transparency  requirements,  sometimes  referred  to  as  the  “Sunshine  Act”  under  the  Patient  Protection  and
Affordable  Care  Act,  as  amended  by  the  Health  Care  and  Education  Reconciliation  Act  of  2010,  or  collectively  the  ACA,  require
manufacturers of drugs, devices, biologics and medical supplies that are reimbursable under Medicare, Medicaid, or the Children’s Health
Insurance Program to report to the Centers for Medicare & Medicaid Services, or CMS, information related to payments and other transfers
of value to physicians and teaching hospitals and the ownership and investment interests of physicians and their immediate family members
in such manufacturers;

•

• HIPPA, as amended by the Health Information Technology for Economic and Clinical Health Act and its implementing regulations, which
also imposes obligations on certain covered entity healthcare providers, health plans, and healthcare clearinghouses as well as their business
associates that perform certain services involving the use or disclosure of individually identifiable health information, including mandatory
contractual terms, with respect to safeguarding the privacy, security and transmission of individually identifiable health information;
analogous  state  and  foreign  laws  and  regulations,  such  as  state  anti-kickback  and  false  claims  laws,  may  apply  to  sales  or  marketing
arrangements  and  claims  involving  healthcare  items  or  services  reimbursed  by  non-governmental  third-party  payors,  including  private
insurers;
some  state  laws  require  pharmaceutical  companies  to  comply  with  the  pharmaceutical  industry’s  voluntary  compliance  guidelines  and  the
relevant compliance guidance promulgated by the federal government and may require drug manufacturers to report information related to
payments and other transfers of value to physicians and other healthcare providers or marketing expenditures; and
state and foreign laws also govern the privacy and security of health information in certain circumstances, many of which differ from each
other in significant ways and often are not preempted by HIPAA, thus complicating compliance efforts.

•

•

Efforts to ensure that our business arrangements with third parties comply with applicable healthcare laws and regulations involve substantial costs. It is
possible that governmental authorities may conclude that our business practices may not comply with current or future statutes, regulations or case law
involving applicable fraud and abuse or other healthcare laws and regulations. If our operations are found to be in violation of any of these laws or any
other  governmental  regulations  that  may  apply  to  us,  we  may  be  subject  to  significant  civil,  criminal  and  administrative  penalties,  damages,  fines,
imprisonment, exclusion of products from government funded healthcare programs, such as Medicare and Medicaid, and the curtailment or restructuring of
our operations. If any of the physicians or other healthcare providers or entities with whom we expect to do business is found to be not in compliance with
applicable laws, they may be subject to criminal, civil or administrative sanctions, including exclusions from government funded healthcare programs.

40

 
 
 
 
 
 
 
 
 
Because  COSELA  received  accelerated  approval  by  the  FDA,  we  must  still  comply  with  post-approval  development  and  regulatory  requirements  to
maintain that approval and, if we fail to do so, FDA could withdraw its approval of COSELA, which would lead to substantially lower revenues.

For  drugs  granted  accelerated  approval,  the  FDA  typically  requires  post-marketing  confirmatory  trials  to  evaluate  the  anticipated  effect  on
irreversible  morbidity  or  mortality  or  other  clinical  benefit.  These  confirmatory  trials  must  be  completed  with  due  diligence.  As  a  condition  of  the
accelerated approval of COSELA, we are required to (i) conduct a study in a sufficient number of adult patients with extensive stage-small cell lung cancer
undergoing chemotherapy to evaluate the impact of COSELA on disease progression or survival in patients with chemotherapy-induced myelosuppression
treated with a platinum/etoposide-containing regimen or topotecan-containing regimen with at least 2 years of follow-up (ii) conduct an in vitro metabolism
study and CYP phenotyping study at clinically relevant concentrations to appropriately determine major metabolic pathway for COSELA. Characterize the
formation of the major circulating metabolite of trilaciclib, M8, using the purified M8 compound with a validated bioanalytical method), (iii) conduct an in
vitro Drug-Drug Interaction (DDI) study to evaluate the major circulating metabolite of COSELA, M8, as an inhibitor for major CYP enzymes and drug
transporters, and (iv) conduct a clinical trial to evaluate the effect of hepatic impairment on the pharmacokinetics and safety of COSELA.

The  FDA  may  withdraw  approval  of  a  product  candidate  approved  under  the  accelerated  approval  pathway  if,  for  example,  the  trial  required  to
verify the predicted clinical benefit of our product candidate fails to verify such benefit or does not demonstrate sufficient clinical benefit to justify the risks
associated  with  the  drug.  The  FDA  may  also  withdraw  approval  if  other  evidence  demonstrates  that  our  product  candidate  is  not  shown  to  be safe  or
effective under the conditions of use, we fail to conduct any required post approval trial of our product candidate with due diligence or we disseminate false
or misleading promotional materials relating to our product candidate.

Governments outside the United States tend to impose strict price controls, which may adversely affect our revenues, if any.

In some countries, particularly the countries of the European Union, the pricing of prescription pharmaceuticals is subject to governmental control. In these
countries, pricing negotiations with governmental authorities can take considerable time after the receipt of marketing approval for a product. To obtain
reimbursement or pricing approval in some countries, we may be required to conduct a clinical trial that compares the cost-effectiveness of our product
candidate to other available therapies. If reimbursement of our products is unavailable or limited in scope or amount, or if pricing is set at unsatisfactory
levels, our business could be harmed, possibly materially.

Risks related to development of our product candidates

Initial success in our ongoing clinical trials may not be indicative of results obtained when these trials are completed or in later stage trials.

We are currently evaluating our product candidates in clinical trials. There can be no assurance that any of our clinical trials will ultimately be successful or
support further clinical development of any of our product candidates. There is a high failure rate for drugs and biologics proceeding through clinical trials.
A number of companies in the pharmaceutical and biotechnology industries have suffered significant setbacks in clinical development even after achieving
promising results in earlier studies, and any such setbacks in our clinical development could have a material adverse effect on our business and operating
results.

If we are unable to successfully commercialize COSELA and develop our product candidates or experience significant delays in doing so, our business
will be materially harmed.

We have invested substantially all of our efforts and financial resources identifying and developing our CDK4/6 inhibitor product candidates, COSELA and
our  oral  SERD  product  candidate,  rintodestrant.  Our  ability  to  generate  product  revenues  will  depend  on  the  successful  development  and  eventual
commercialization of COSELA and our other product candidates. In 2020,  we did not generate any revenues from sales of any drugs. Each of our product
candidates will require additional development, management of development and manufacturing activities, marketing approval in multiple jurisdictions,
obtaining  manufacturing  supply,  commercialization  activities,  substantial  investment  and  significant  marketing  efforts  before  we  generate  any  revenues
from drug sales.

We have not yet demonstrated an ability to successfully overcome many of the risks and uncertainties frequently encountered by companies in new and
rapidly evolving fields, particularly in the biopharmaceutical area. For example, to execute our business plan, we will need to successfully:

•
•

build and maintain robust sales, distribution and marketing capabilities, either on our own or in collaboration with strategic partners;
gain acceptance for our product candidates, if approved, by patients, the medical community and third-party payors;

41

 
 
 
 
 
•
•
•
•

•
•

compete effectively with other therapies;
execute development activities for our product candidates, including successful enrollment in and completion of clinical trials;
obtain required marketing approvals for the development and commercialization of our product candidates;
obtain  and  maintain  patent  and  trade  secret  protection  and  regulatory  exclusivity  for  our  product  candidates  and  ensure  that  we  do  not
infringe the valid patent rights of third parties;
protect, leverage and expand our intellectual property portfolio;
establish and maintain clinical and commercial manufacturing capabilities or make arrangements with third-party manufacturers for clinical
and commercial manufacturing;
obtain and maintain healthcare coverage and adequate reimbursement;

•
• maintain a continued acceptable safety profile for our product candidates following approval, if approved;
•
•
• manage  our  spending  as  costs  and  expenses  increase  due  to  preclinical  development,  clinical  trials,  marketing  approvals  and

develop and maintain any strategic relationships;
enforce and defend intellectual property rights and claims; and

commercialization.

If  we  do  not  achieve  one  or  more  of  these  factors  in  a  timely  manner  or  at  all,  we  could  experience  significant  delays  or  an  inability  to  successfully
commercialize our product candidates, which would materially harm our business.

Our  development  of  COSELA,  a  CDK4/6  to  decrease  the  incidence  of  chemotherapy-induced  myelosuppression  is  novel,  unproven  and  rapidly
evolving.

COSELA  is  a  short-acting  intravenous  CDK4/6  inhibitor.  The  use  of  a  CDK4/6  inhibitor  to  decrease  the  incidence  of  chemotherapy-induced
myelosuppression is a novel approach and we believe that we are the only company currently developing a CDK4/6 inhibitor for this patient population.
Even  though  COSELA  has  demonstrated  positive  results  in  clinical  trials  for  small  cell  lung  cancer,  we  may  not  succeed  in  demonstrating  safety  and
efficacy of COSELA in additional indications.

Advancing COSELA creates significant challenges for us, including:

•

•

•

obtaining marketing approval for multiple indications, as the FDA and other regulatory authorities have limited experience with commercial
development of a CDK4/6 inhibitor for this type of use;
educating medical personnel regarding the potential safety benefits, as well as the challenges, of incorporating our product candidates into
their treatment regimens; and
establishing sales and marketing capabilities to gain market acceptance of a novel therapy.

If  we  experience  delays  or  difficulties  in  the  enrollment  of  patients  in  clinical  trials,  development  of  our  product  candidates  may  be  delayed  or
prevented, which would have a material adverse effect on our business.

Identifying and qualifying patients to participate in clinical trials for our product candidates is critical to our success. In particular, because we are initially
focused on patients with diseases with genetically defined tumors, our ability to enroll eligible patients may be limited or may result in slower enrollment
than we anticipate. We may not be able to initiate or continue clinical trials for our product candidates if we are unable to locate and enroll a sufficient
number of eligible patients to participate in these trials. Patient enrollment may be affected by many factors including:

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•

the severity of the disease under investigation;
the eligibility criteria for the clinical trial in question;
the perceived risks and benefits of the product candidate under study;
the efforts to facilitate timely enrollment in clinical trials;
the patient referral practices of physicians;
the availability of competing therapies and clinical trials; and
the proximity and availability of clinical trial sites for prospective patients.

If  we  experience  delays  or  difficulties  in  the  enrollment  of  patients  in  clinical  trials,  our  clinical  trials  may  be  delayed  or  terminated.  Any  delays  in
completing our clinical trials will increase our costs, delay or prevent our product candidate development and approval process, and jeopardize our ability
to commence product sales and generate revenue. Any of these occurrences may harm our business, financial condition and prospects significantly.

42

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Clinical drug development involves a lengthy and expensive process, with an uncertain outcome. We may incur additional costs or experience delays in
completing,  or  ultimately  be  unable  to  complete,  the  development  and  may  experience  delays  in  obtaining,  or  ultimately  be  unable  to  obtain,  the
approval of our product candidates.

The  risk  of  failure  in  drug  development  is  high.  Before  obtaining  marketing  approval  from  regulatory  authorities  for  the  sale  of  any  of  our  product
candidates, we must complete preclinical development and conduct extensive clinical trials to demonstrate the safety and efficacy of our product candidates
in  humans.  Clinical  trials  are  expensive,  difficult  to  design  and  implement  and  can  take  several  years  to  complete,  and  their  outcomes  are  inherently
uncertain. Failure can occur at any time during the clinical trial process. Further, the results of preclinical studies and early clinical trials of our product
candidates may not be predictive of the results of later-stage clinical trials, and interim results of a clinical trial do not necessarily predict final results.
Moreover, preclinical and clinical data are often susceptible to varying interpretations and analyses, and many companies that have believed their product
candidates  performed  satisfactorily  in  preclinical  studies  and  clinical  trials  have  nonetheless  failed  to  obtain  marketing  approval  of  their  products.  It  is
impossible to predict when or if any of our product candidates will prove effective or safe in humans or will receive marketing approval.

We may experience numerous unforeseen events during, or as a result of, clinical trials that could delay or prevent our ability to receive marketing approval
or commercialize our product candidates. Clinical trials may be delayed, suspended or prematurely terminated because costs are greater than we anticipate
or for a variety of reasons, such as:

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delay  or  failure  in  reaching  agreement  with  the  FDA  or  a  comparable  foreign  regulatory  authority  on  a  trial  design  that  we  are  able  to
execute;
delay  or  failure  in  obtaining  authorization  to  commence  a  trial  or  inability  to  comply  with  conditions  imposed  by  a  regulatory  authority
regarding the scope or design of a clinical trial;
delays  in  reaching,  or  failure  to  reach,  agreement  on  acceptable  terms  with  prospective  trial  sites  and  prospective  contract  research
organizations, or CROs, the terms of which can be subject to extensive negotiation and may vary significantly among different CROs and
trial sites;
inability, delay, or failure in identifying and maintaining a sufficient number of trial sites, many of which may already be engaged in other
clinical programs;
delay or failure in recruiting and enrolling suitable subjects to participate in a trial;
delay or failure in having subjects complete a trial or return for post-treatment follow-up;
clinical sites and investigators deviating from the clinical protocol, failing to conduct the trial in accordance with regulatory requirements, or
dropping out of a trial;
failure to initiate or delay of or failure to complete a clinical trial as a result of an IND being placed on clinical hold by the FDA, or for other
reasons;
lack of adequate funding to continue a clinical trial, including unforeseen costs due to enrollment delays, requirements to conduct additional
clinical trials and increased expenses associated with the services of our CROs and other third parties;
clinical trials of our product candidates may produce negative or inconclusive results, and we may decide, or regulators may require us, to
conduct additional clinical trials or abandon product development programs;
the number of patients required for clinical trials of our product candidates may be larger than we anticipate, enrollment in these clinical trials
may be slower than we anticipate, or participants may drop out of these clinical trials at a higher rate than we anticipate;
our third-party contractors may fail to comply with regulatory requirements or meet their contractual obligations to us in a timely manner, or
at all;
regulators, or a Data Safety Monitoring Board, or DSMB, if one is used for our clinical trials, may require that we suspend or terminate our
clinical  trials  for  various  reasons,  including  noncompliance  with  regulatory  requirements,  unforeseen  safety  issues  or  adverse  side  effects,
failure to demonstrate a benefit from using a drug, or a finding that the participants are being exposed to unacceptable health risks;
the  supply  or  quality  of  our  product  candidates  or  other  materials  necessary  to  conduct  clinical  trials  of  our  product  candidates  may  be
insufficient;
the FDA or other regulatory authorities may require us to submit additional data or impose other requirements before permitting us to initiate
a clinical trial; or
there may be changes in governmental regulations or administrative actions.

Many of the factors that cause, or lead to, a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of marketing
approval for our product candidates. Further, the FDA may disagree with our clinical trial design and our interpretation of data from clinical trials or may
change the requirements for approval even after it has reviewed and commented on the design for our clinical trials.

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

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be delayed in obtaining marketing approval for our product candidates;
not obtain marketing approval for our product candidates at all;
obtain approval for indications or patient populations that are not as broad as intended or desired;
obtain  approval  with  labeling  that  includes  significant  use  or  distribution  restrictions  or  safety  warnings  that  would  reduce  the  potential
market for our products or inhibit our ability to successfully commercialize our products;
be subject to additional post-marketing restrictions and/or requirements; or
have the product removed from the market after obtaining marketing approval.

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

Risks related to our financial position and need for additional capital

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

We have incurred significant operating losses since our inception. We incurred net losses of $99.3 million for the year ended December 31, 2020, $122.4
million for the year ended December 31, 2019, and $85.3 million for the year ended December 31, 2018. As of December 31, 2020, we had an accumulated
deficit  of  $436.1  million.  Our  product  candidates  span  a  range  from  development  to  commercialization,  and  it  may  be  several  years,  if  ever,  before  we
become profitable. To date, we have financed our operations through sales of our preferred and common stock, license agreements and debt. We expect to
continue to incur significant expenses and increasing operating losses for the foreseeable future. The net losses we incur may fluctuate significantly from
quarter to quarter. We anticipate that our expenses will increase substantially as we:

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support our commercialization efforts for COSELA;
continue development of our product candidates, including additional clinical trials;
seek marketing approvals for our product candidates that successfully complete clinical trials;
increase  our  sales,  marketing  and  distribution  infrastructure  to  commercialize  COSELA  and  any  other  products  for  which  we  may  obtain
marketing approval;
achieve market acceptance for COSELA and any other of our product candidates in the medical community and with third-party payors;

•
• maintain, expand and protect our intellectual property portfolio;
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hire additional personnel;
enter into collaboration arrangements, if any, for the development of our product candidates or in-license other products and technologies;
achieve milestones requiring payment under our in-licensing programs;
add operational, financial and management information systems and personnel, including personnel to support our product development and
commercialization efforts; and
incur increased costs as a result of operating as a public company.

•

Because of the numerous risks and uncertainties associated with developing and commercializing pharmaceutical drugs, we are unable to predict the extent
of any future losses or when we will become profitable, if at all. In addition, our expenses could increase beyond expectations if we are required by the
FDA or foreign regulatory agencies, to perform studies and clinical trials in addition to those that we currently anticipate for COSELA, or if there are any
delays in our or our partners completing clinical trials or the development of any of our product candidates.

To become and remain profitable, we must develop and commercialize products with significant market potential. This will require us to be successful in a
range of challenging activities, including the following:

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completing clinical trials of our product candidates that meet their clinical endpoints;
obtaining marketing approval for our product candidates;
manufacturing, marketing and selling those products for which we may obtain marketing approval; and
achieving market acceptance of our product candidates in the medical community and with third-party payors.

44

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We may never succeed in these activities and, even if we do, may never generate revenues that are significant or large enough to achieve profitability. If we
do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis. Our failure to become and remain profitable
would decrease the value of the company and could impair our ability to raise capital, maintain our discovery and preclinical development efforts, expand
our business or continue our operations and may require us to raise additional capital that may dilute your ownership interest. A decline in the value of our
company could also cause you to lose all or part of your investment.

Our limited operating history may make it difficult for you to evaluate the success of our business to date and to assess our future viability.

Biopharmaceutical drug development is a highly speculative undertaking and involves a substantial degree of risk. Our operations to date have been limited
to organizing and staffing our company, business planning, raising capital, developing our technology, identifying potential product candidates, undertaking
preclinical  studies,  and  conducting  clinical  trials  of  trilaciclib,  rintodestrant  and  lerociclib.  We  have  not  yet  demonstrated  our  ability  to  successfully
complete large-scale, pivotal clinical trials, manufacture a commercial scale product, or arrange for a third party to do so on our behalf, or conduct sales
and marketing activities necessary for successful product commercialization. Typically, it takes several years to develop one new drug from the time it is
discovered to when it is available for treating patients. In addition, as a new business, we may encounter unforeseen expenses, difficulties, complications,
delays  and  other  known  and  unknown  factors.  We  will  need  to  transition  from  a  company  with  a  research  focus  to  a  company  capable  of  supporting
commercial activities and continuing to develop products. We may not be successful in such a transition.

We will need substantial additional funding. If we are unable to raise capital when needed, we would be compelled to delay, reduce or eliminate our
product development programs or commercialization efforts.

The development of pharmaceutical drugs is a capital-intensive venture. We expect our expenses to continue to increase along with our ongoing activities,
particularly as we support commercial activities and conduct larger-scale clinical trials of, and seek marketing approval for, our product candidates. For
example, we expect to incur significant COSELA commercialization expenses related to product sales, marketing, manufacturing and distribution. We may
also need to raise additional funds sooner if we choose to pursue additional indications and/or geographies for our product candidates or otherwise expand
more rapidly than we presently anticipate. Furthermore, we have incurred, and expect to continue to incur, additional costs associated with operating as a
public company. Accordingly, we will need to obtain substantial additional funding in connection with our continuing operations. If we are unable to raise
capital  when  needed  or  on  attractive  terms,  we  would  be  forced  to  delay,  reduce  or  eliminate  our  clinical  programs,  development  efforts  or  any  future
commercialization efforts.

As of December 31, 2020, we had $207.3 million in cash and cash equivalents. We believe that, based upon our current operating plan, our existing capital
resources  will  be  sufficient  to  fund  our  anticipated  operations  for  greater  than  12  months  from  the  date  of  filing  this  Annual  Report.  Our  future  capital
requirements  and  the  period  for  which  we  expect  our  existing  resources  to  support  our  operations  may  vary  significantly  from  what  we  expect.  Our
monthly spending levels vary based on new and ongoing commercialization expenses, research and development, and other corporate activities. Because
the length of time and activities associated with successful commercialization and research and development of our product candidates is highly uncertain,
we are unable to estimate the actual funds we will require for commercialization and development of any approved product candidates. In addition, our
future capital requirements will depend on many factors, and could increase significantly as a result of many factors, including:

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the  costs  of  commercialization  activities,  including  product  sales,  marketing,  manufacturing  and  distribution  of  COSELA  and  any  of  our
future product candidates for which we receive marketing approval;
the scope, progress, results and costs of development, laboratory testing and clinical trials for our product candidates;
the scope, prioritization and number of our research and development programs;
the costs, timing and outcome of regulatory review of our product candidates;
the extent to which we enter into non-exclusive, jointly funded clinical research collaboration arrangements, if any, for the development of
our product candidates in combination with other companies’ products;
our ability to establish collaboration arrangements for the development of our product candidates on favorable terms, if at all;
the achievement of milestones or occurrence of other developments that trigger payments under our license agreement and any collaboration
agreements into which we may enter, if any;
the extent to which we are obligated to reimburse, or entitled to reimbursement of, clinical trial costs under future collaboration agreements,
if any;
the extent to which we acquire or in-license product candidates and technologies, such as rintodestrant, and the terms of such in-licenses;
revenue received from commercial sales of COSELA and any future product candidates; and

45

 
 
 
 
 
 
 
 
 
 
 
•

the costs of preparing, filing and prosecuting patent applications, maintaining and enforcing our intellectual property rights and defending
intellectual property-related claims.

Conducting studies and clinical trials is a time-consuming, expensive and uncertain process that can take years to complete, and we may never generate the
necessary  data  or  results  required  to  obtain  marketing  approval  and  achieve  product  sales.  In  addition,  COSELA  and  our  future  product  candidates,  if
approved, may not achieve commercial success. Our commercial revenues, if any, will be derived from sales of products that may not be commercially
available for some time, if ever. Accordingly, we will need to continue to rely on additional financing to achieve our business objectives.

Any  additional  fundraising  efforts  may  divert  our  management  from  their  day-to-day  activities,  which  may  adversely  affect  our  ability  to  develop  and
commercialize COSELA and our other product candidates. Volatility in the financial markets have generally made equity and debt financing more difficult
to obtain and may have a material adverse effect on our ability to meet our fundraising needs. We cannot guarantee that future financing will be available in
sufficient  amounts  or  on  terms  acceptable  to  us,  if  at  all.  Moreover,  the  terms  of  any  financing  may  adversely  affect  the  holdings  or  the  rights  of  our
stockholders and the issuance of additional securities, whether equity or debt, by us, or the possibility of such issuance, may cause the market price of our
shares to decline.

If we are unable to obtain funding on a timely basis, we may be required to significantly curtail, delay or discontinue the commercialization of COSELA or
any one or more of our research or development programs or be unable to expand our operations or otherwise capitalize on our business opportunities, as
desired, which could materially affect our business, financial condition and results of operations.

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

Until such time, if ever, as we can generate substantial product revenues, we expect to finance our cash needs through a combination of equity financings,
debt financings, collaborations, strategic alliances and licensing arrangements. The sale of additional equity or convertible debt securities would dilute all
of  our  stockholders.  The  incurrence  of  indebtedness  would  result  in  increased  fixed  payment  obligations,  and  we  may  be  required  to  agree  to  certain
restrictive covenants, such as limitations on our ability to incur additional debt, limitations on our ability to acquire, sell or license intellectual property
rights, limitations on declaring dividends and other operating restrictions that could adversely impact our ability to conduct our business. We could also be
required to seek funds through collaborations, strategic alliances or licensing arrangements with third parties, and we could be required to do so at an earlier
stage than otherwise would be desirable. In connection with any such collaborations, strategic alliances or licensing arrangements, we may be required to
relinquish valuable rights to our intellectual property, future revenue streams, research programs or product candidates, grant rights to develop and market
product candidates that we would otherwise prefer to develop and market ourselves, or otherwise agree to terms unfavorable to us, any of which may have
a material adverse effect on our business, operating results and prospects.

Our level of indebtedness and debt service obligations could adversely affect our financial condition and may make it more difficult for us to fund our
operations.

We have entered into a loan and security agreement with Hercules Capital, Inc. for up to $100.0 million of debt under a term loan, or the Hercules Loan
Agreement. The maturity date of the Hercules Loan Agreement is June 1, 2024.  As of December 31, 2020, the Company has borrowed $20.0 million under
the Hercules Loan Agreement. The Company’s obligations under the Hercules Loan Agreement are secured by a blanket lien on substantially all of the
Company’s assets, including a security interest in the intellectual property.

This indebtedness may create additional financing risk for us, particularly if our business or prevailing financial market conditions are not conducive to
paying off or refinancing our outstanding debt obligations at maturity. This indebtedness could also have important negative consequences, including the
fact that we will need to repay our indebtedness by making payments of interest and principal, which will reduce the amount of money available to finance
our operations, our commercialization efforts, our research and development efforts and other general corporate activities.

If we were to become unable to pay, when due, the principal of, interest on, or other amounts due in respect of, our indebtedness, our financial condition
would be adversely affected.  Further, under the Hercules Loan Agreement, we are subject to certain restrictive covenants that, among other things, subject
to exceptions, restrict the Company’s ability to do the following things: declare dividends or redeem or repurchase equity interests; incur additional liens;
make loans and investments; incur additional indebtedness; engage in mergers, acquisitions, and asset sales; transact with affiliates; undergo a change in
control; and add or change business locations. If we breach any of these restrictive covenants or are unable to pay our indebtedness under the Hercules
Loan Agreement when due, this could result in a default under the Hercules Loan Agreement. In such event, Hercules may elect (after the expiration of any
applicable notice or grace periods) to declare all outstanding borrowings, together with accrued and unpaid interest and other amounts payable

46

 
 
 
under the Hercules Loan Agreement, to be immediately due and payable. Any such occurrence would have an adverse impact on our financial condition.

If we fail to comply with environmental, health and safety laws and regulations, we could become subject to fines or penalties or incur costs that could
harm our business.

We are subject to numerous environmental, health and safety laws and regulations, including those governing laboratory procedures and the handling, use,
storage,  treatment  and  disposal  of  hazardous  materials  and  wastes.  Our  operations  involve  the  use  of  hazardous  and  flammable  materials,  including
chemicals and biological materials. Our operations also produce hazardous waste products. We generally contract with third parties for the disposal of these
materials and wastes. We cannot eliminate the risk of contamination or injury from these materials. In the event of contamination or injury resulting from
our use of hazardous materials, we could be held liable for any resulting damages, and the amount of the liability could exceed our resources. We also
could incur significant costs associated with civil or criminal fines and penalties for failure to comply with such laws and regulations.

Although we maintain workers’ compensation insurance to cover us for costs and expenses we may incur due to injuries to our employees resulting from
the  use  of  hazardous  materials,  this  insurance  may  not  provide  adequate  coverage  against  other  potential  liabilities.  We  do  not  maintain  insurance  for
environmental liability or toxic tort claims that may be asserted against us in connection with our storage or disposal of biological, hazardous or radioactive
materials.

In addition, we may incur substantial costs in order to comply with current or future environmental, health and safety laws and regulations. These current or
future laws and regulations may impair our discovery, preclinical development or production efforts. Our failure to comply with these laws and regulations
also may result in substantial fines, penalties or other sanctions.

Risks related to marketing approval of our product candidates

If  we  are  not  able  to  obtain,  or  if  there  are  delays  in  obtaining,  required  marketing  approvals,  we  will  not  be  able  to  commercialize  our  product
candidates, and our ability to generate revenue will be materially impaired.

Our  product  candidates  and  the  activities  associated  with  their  development  and  commercialization,  including  their  design,  testing,  manufacture,  safety,
efficacy, recordkeeping, labeling, storage, approval, advertising, promotion, sale, distribution, import and export are subject to comprehensive regulation by the
FDA and other regulatory agencies in the United States and by comparable authorities in other countries. These requirements include submissions of safety and
other post-marketing information and reports, registration and listing requirements, current good manufacturing practice, or cGMP, requirements relating to
manufacturing, quality control, quality assurance and corresponding maintenance of records and documents, including periodic inspections by FDA and other
regulatory authorities, requirements regarding the distribution of samples to physicians and recordkeeping. Before we can commercialize any of our product
candidates, each such product candidate must be approved by the FDA pursuant to a new drug application, or NDA, in the United States, by the European
Medicines Agency, or EMA, pursuant to a marketing authorization application, or MAA, in the European Union, and by similar regulatory authorities outside
the United States prior to commercialization.

The process of obtaining marketing approvals, both in the United States and abroad, is expensive and takes several years, if approval is obtained at all, and
can  vary  substantially  based  upon  a  variety  of  factors,  including  the  type,  complexity  and  novelty  of  the  product  candidates  involved.  Failure  to  obtain
marketing approval for a product candidate will prevent us from commercializing the product candidate. We have not received approval to market any of
our product candidates from regulatory authorities in any jurisdiction. We have limited experience in planning and conducting the clinical trials required for
marketing  approvals,  and  we  expect  to  rely  on  third-party  contract  research  organizations,  or  CROs,  to  assist  us  in  this  process.  Obtaining  marketing
approval  requires  the  submission  of  extensive  preclinical  and  clinical  data  and  supporting  information  to  regulatory  authorities  for  each  therapeutic
indication  to  establish  the  product  candidate’s  safety  and  efficacy.  Securing  marketing  approval  also  requires  the  submission  of  information  about  the
product manufacturing process, and in many cases the inspection of manufacturing facilities by the regulatory authorities. Our product candidates may not
be  effective,  may  be  only  moderately  effective  or  may  prove  to  have  undesirable  or  unintended  side  effects,  toxicities  or  other  characteristics  that  may
preclude our obtaining marketing approval or prevent or limit commercial use. Regulatory authorities have substantial discretion in the approval process
and may refuse to accept any application or may decide that our data are insufficient for approval and require additional preclinical studies or clinical trials.
Our product candidates could be delayed in receiving, or fail to receive, marketing approval for many reasons, including the following:

the FDA or comparable foreign regulatory authorities may disagree with the design or implementation of our clinical trials;

•
• we may be unable to demonstrate to the satisfaction of the FDA or comparable foreign regulatory authorities that a product candidate is safe

•

and effective for its proposed indication;
the results of clinical trials may not meet the level of statistical significance required by the FDA or comparable foreign regulatory authorities
for approval;

• we may be unable to demonstrate that a product candidate’s clinical and other benefits outweigh its safety risks;

47

 
 
 
 
•
•

•

•

the FDA or comparable foreign regulatory authorities may disagree with our interpretation of data from preclinical studies or clinical trials;
the  data  collected  from  clinical  trials  of  our  product  candidates  may  not  be  sufficient  to  support  the  submission  of  an  NDA  or  other
submission to obtain marketing approval in the United States or elsewhere;
third-party manufacturers or our clinical or commercial product candidates may be unable to meet the FDA’s cGMP requirements or similar
requirements of foreign regulatory authorities; and
the  approval  requirements  or  policies  of  the  FDA  or  comparable  foreign  regulatory  authorities  may  significantly  change  in  a  manner
rendering our clinical data insufficient for approval.

In addition, even if we were to obtain approval, regulatory authorities may approve our product candidates for fewer or more limited indications than we
request, may grant approval contingent on the performance of costly post-marketing clinical trials, or may approve a product candidate with a label that
does not include the labeling claims necessary or desirable for the successful commercialization of that product candidate. Any of the foregoing scenarios
could materially harm the commercial prospects for our product candidates.

If  we  experience  delays  in  obtaining  approval  or  if  we  fail  to  obtain  approval  of  our  product  candidates,  the  commercial  prospects  for  our  product
candidates may be harmed and our ability to generate revenues will be materially impaired.

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

Undesirable side effects caused by our product candidates could cause us or the FDA or other regulatory authorities to interrupt, delay or halt our clinical
trials  and  could  result  in  more  restrictive  labels  or  the  delay  or  denial  of  marketing  approval  by  the  FDA  or  other  regulatory  authorities  of  our  product
candidates. Results of our clinical trials could reveal a high and unacceptable severity and prevalence of these or other side effects. In such an event, our
trials could be suspended or terminated, and the FDA or comparable foreign regulatory authorities could order us to cease further development of or deny
approval of our product candidates for any or all targeted indications. In addition to this, the drug-related side effects could affect patient recruitment or the
ability of enrolled patients to complete the trial or result in potential product liability claims. Any of these occurrences may harm our business, financial
condition and prospects significantly.

Further, clinical trials by their nature utilize a sample of the potential patient population. With a limited number of patients, rare and severe side effects of
our product candidates may only be uncovered with a significantly larger number of patients exposed to the product candidate. If our product candidates
receive marketing approval and we or others identify undesirable side effects caused by such product candidates (or any other similar drugs) after such
approval, a number of potentially significant negative consequences could result, including:

regulatory authorities may withdraw or limit their approval of such product candidates;
regulatory authorities may require the addition of labeling statements, such as a “boxed” warning or a contraindication;

•
•
• we may be required to create a medication guide outlining the risks of such side effects for distribution to patients;
• we may be required to change the way such product candidates are distributed or administered, conduct additional clinical trials or change the

•

labeling of the product candidates;
regulatory authorities may require a Risk Evaluation and Mitigation Strategy plan to mitigate risks, which 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;

• we may be subject to regulatory investigations and government enforcement actions;
• we may decide to remove such product candidates from the marketplace after they are approved;
• we could be sued and held liable for injury caused to individuals exposed to or taking our product candidates; and
•

our reputation may suffer.

We  believe  that  any  of  these  events  could  prevent  us  from  achieving  or  maintaining  market  acceptance  of  the  affected  product  candidates  and  could
substantially increase the costs of commercializing our product candidates, if approved, and significantly impact our ability to successfully commercialize
our product candidates and generate revenues.

COSELA and any other product candidate for which we obtain marketing approval will be subject to extensive post-marketing regulatory requirements
and  could  be  subject  to  post-marketing  restrictions  or  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 our products, when and if any of them are approved.

Commercialization  activities  for  COSELA,  and  any  other  product  candidate,  such  as  the  manufacturing  processes,  labeling,  packaging,  distribution,
adverse  event  reporting,  storage,  advertising,  promotion  and  recordkeeping  for  the  product  will  be  subject  to  extensive  and  ongoing  regulatory
requirements. The FDA or a comparable foreign regulatory authority may also impose requirements

48

 
 
 
 
 
 
 
 
 
 
 
 
 
 
for costly post-marketing preclinical studies or clinical trials and surveillance to monitor the safety or efficacy of the product. The FDA closely regulates
the post-approval marketing and promotion of drugs to ensure drugs are marketed only for the approved indications and in accordance with the provisions
of the approved labeling. The FDA imposes stringent restrictions on manufacturers’ communications regarding use of their products, and if we promote
COSELA or any other of our products beyond their approved indications, we may be subject to enforcement actions or prosecution arising from that off-
label promotion. Violations of the Federal Food, Drug, and Cosmetic Act relating to the promotion of prescription drugs may lead to investigations alleging
violations of federal and state healthcare fraud and abuse and other laws, as well as state consumer protection laws.

In  addition,  later  discovery  of  previously  unknown  adverse  events  or  other  problems  with  our  products,  manufacturers  or  manufacturing  processes,  or
failure to comply with regulatory requirements, may yield various results, including:

restrictions on such products, manufacturers or manufacturing processes;
restrictions on the labeling or marketing of a product;
restrictions on product distribution or use;
requirements to conduct post-marketing studies or clinical trials;

•
•
•
•
• warning or untitled letters;
• withdrawal of the products from the market;
•
•
•
•
•
•
•

refusal to approve pending applications or supplements to approved applications that we submit;
recall of products;
fines, restitution or disgorgement of profits or revenues;
suspension or withdrawal of marketing approvals;
refusal to permit the import or export of our products;
product seizure; or
injunctions or the imposition of civil or criminal penalties.

Non-compliance  with  European  Union  requirements  regarding  safety  monitoring  or  pharmacovigilance  can  also  result  in  significant  financial  penalties.
Similarly, failure to comply with the European Union’s requirements regarding the protection of personal information can also lead to significant penalties
and sanctions.

The FDA’s policies may change and additional government regulations may be enacted that could prevent, limit or delay marketing approval of our product
candidates. If we are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we are not able to
maintain regulatory compliance, we may lose any marketing approval that we may have obtained, which would adversely affect our business, prospects and
ability to achieve or sustain profitability.

Current and future legislation may increase the difficulty and cost for us to obtain marketing approval of and commercialize our product candidates
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  of  our  product  candidates,  restrict  or  regulate  post-approval  activities  and  affect  our
ability to profitably sell any product candidates for which we obtain marketing approval.

In the United States, the Medicare Prescription Drug, Improvement, and Modernization Act of 2003, or the MMA, changed the way Medicare covers and
pays  for  pharmaceutical  products.  The  legislation  expanded  Medicare  coverage  for  drug  purchases  by  the  elderly  and  certain  disabled  people  and
introduced  a  reimbursement  methodology  based  on  average  sales  prices  for  physician-administered  drugs.  In  addition,  this  law  provided  authority  for
limiting the number of drugs that will be covered in any therapeutic class. Cost reduction initiatives and other provisions of this law and future laws could
decrease the coverage and price that we will receive for any approved products. While the MMA only applies to drug benefits for Medicare beneficiaries,
private  payors  often  follow  Medicare  coverage  policy  and  payment  limitations  in  setting  their  own  payment  rates.  Therefore,  any  limitations  in
reimbursement that results from the MMA may result in reductions in payments from private payors.

In  March  2010,  the  ACA  became  law.  The  ACA  is  a  sweeping  law  intended  to  broaden  access  to  health  insurance,  reduce  or  constrain  the  growth  of
healthcare  spending,  enhance  remedies  against  fraud  and  abuse,  add  new  transparency  requirements  for  the  healthcare  and  health  insurance  industries,
impose new taxes and fees on the health industry and impose additional health policy reforms.

Among the provisions of the ACA of importance to our potential product candidates are the following:

•
•
•

an annual, nondeductible fee on any entity that manufactures or imports specified branded prescription drugs and biologic products;
an increase in the statutory minimum rebates a manufacturer must pay under the Medicaid Drug Rebate Program;
expansion of healthcare fraud and abuse laws, including the False Claims Act and the Anti-Kickback Statute, new government investigative
powers, and enhanced penalties for noncompliance;

49

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
•

•
•
•
•
•
•

a  new  Medicare  Part  D  coverage  gap  discount  program,  in  which  manufacturers  must  agree  to  offer  50%  point-of-sale  discounts  off
negotiated prices;
extension of manufacturers’ Medicaid rebate liability;
expansion of eligibility criteria for Medicaid programs;
expansion of the entities eligible for discounts under the Public Health Service Act’s pharmaceutical pricing program;
new requirements to report financial arrangements with physicians and teaching hospitals;
a new requirement to annually report drug samples that manufacturers and distributors provide to physicians; and
a  new  Patient-Centered  Outcomes  Research  Institute  to  oversee,  identify  priorities  in,  and  conduct  comparative  clinical  effectiveness
research, along with funding for such research.

There have been several recent U.S. congressional inquiries and proposed and enacted federal and state legislation designed to bring more transparency to
drug  pricing,  reduce  the  costs  of  drugs  under  Medicare,  review  the  relationship  between  pricing  and  manufacturer  patient  programs,  and  reform
government  program  reimbursement  methodologies  for  drug  products.  Although  any  proposed  measures  will  require  authorization  through  additional
legislation  to  become  effective,  Congress  and  the  current  administration  have  each  indicated  that  it  will  continue  to  seek  new  legislative  and/or
administrative  measures  to  control  drug  costs.  Also,  the  FDA  recently  issued  draft  guidance  that  would  allow  manufacturers  to  import  their  own  FDA-
approved drugs that are authorized for sale in other countries as a means to lower drug prices.

We expect that the ACA, as well as other healthcare reform measures that may be adopted in the future, may result in more rigorous coverage criteria and
in  additional  downward  pressure  on  the  price  that  we  will  receive  for  any  approved  product.  Any  reduction  in  payments  from  Medicare  or  other
government  programs  may  result  in  a  similar  reduction  in  payments  from  private  payors.  The  implementation  of  cost  containment  measures  or  other
healthcare reforms may prevent us from being able to generate revenue, attain profitability, or commercialize our products.

Legislative and regulatory proposals have been made to expand post-approval requirements and restrict sales and promotional activities for pharmaceutical
products.  We  cannot  be  sure  whether  additional  legislative  changes  will  be  enacted,  or  whether  FDA  regulations,  guidance  or  interpretations  will  be
changed, or what the impact of such changes on the marketing approvals, if any, of our product candidates, 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 conditions and other requirements.

Our future growth may depend, 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 may depend, in part, on our ability to commercialize our product candidates in foreign markets. In order to market and sell our
products in the European Union and many other jurisdictions, we or our third-party collaborators must obtain separate marketing approvals and comply
with  numerous  and  varying  regulatory  requirements.  The  approval  procedure  varies  among  countries  and  economic  areas  and  can  involve  additional
testing. The time required to obtain approval may differ substantially from that required to obtain FDA approval. The marketing approval process outside
the United States generally includes all of the risks associated with obtaining FDA approval. In addition, in many countries outside the United States, it is
required that the product be approved for reimbursement before the product can be approved for sale in that country. We or these third parties may not
obtain approvals from regulatory authorities outside the United States on a timely basis, if at all. Approval by FDA does not ensure approval by regulatory
authorities in other countries or jurisdictions, and approval by one regulatory authority outside the United States does not ensure approval by regulatory
authorities in other countries or jurisdictions or by FDA. Additionally, a failure or delay in obtaining marketing approval in one jurisdiction may have a
negative  effect  on  the  marketing  approval  process  in  others.  Approval  procedures  vary  among  jurisdictions  and  can  involve  requirements  and
administrative  review  periods  different  from,  and  greater  than,  those  in  the  United  States,  including  additional  preclinical  studies  or  clinical  trials.
Obtaining foreign marketing approvals and compliance with foreign regulatory requirements could result in significant delays, difficulties and costs for us
and  could  delay  or  prevent  the  introduction  of  our  products  in  certain  countries.  If  we  fail  to  comply  with  the  regulatory  requirements  in  international
markets and/or receive applicable marketing approvals, our target market will be reduced and our ability to realize the full market potential of our product
candidates will be harmed.

We may not be able to file for marketing approvals and may not receive necessary approvals to commercialize our products in any market. If we obtain
approval of our product candidates and ultimately commercialize our product candidates in foreign markets, we would be subject to additional risks and
uncertainties, including:

•
•
•
•
•
•

our customers’ ability to obtain reimbursement for our product candidates 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;

50

 
 
 
 
 
 
 
 
 
 
 
 
 
•
•
•
•
•

•

•
•
•

longer lead times for shipping;
language barriers for technical training;
reduced or no protection on pharmaceutical products or their use in some foreign countries;
the unwillingness of courts in some foreign jurisdictions to enforce patents even when valid and infringed in that country;
the possibility of pre-grant or post-grant review proceedings in certain foreign countries that allow a petitioner to hold up patent rights for an
extended period or permanently by challenging the patent filing at the patent office of that country;
the possibility of a compulsory license issued by a foreign country that allows a third-party company or a government to manufacture, use or
sell our products with a government-set low royalty to us;
the existence of additional potentially relevant third-party intellectual property rights;
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 our product candidates could also be adversely affected by the imposition of governmental controls, political and economic instability,
trade restrictions and changes in tariffs.

Risks related to our dependence on third parties

We  rely  on,  and  expect  to  continue  to  rely  on,  third  parties  to  conduct  our  clinical  trials  for  our  product  candidates.  If  these  third  parties  do  not
successfully  carry  out  their  contractual  duties,  comply  with  regulatory  requirements  or  meet  expected  deadlines,  we  may  not  be  able  to  obtain
marketing approval for or commercialize our product candidates, and our business could be substantially harmed.

We do not have the ability to independently conduct clinical trials. We rely on medical institutions, clinical investigators, contract laboratories and other
third  parties,  such  as  CROs,  to  conduct  or  otherwise  support  clinical  trials  for  our  product  candidates.  We  expect  to  rely  heavily  on  these  parties  for
performance of clinical trials for our product candidates. Nevertheless, we will be responsible for ensuring that each of our clinical trials is conducted in
accordance with the applicable protocol, legal and regulatory requirements and scientific standards.

We, our investigators, and our CROs will be required to comply with regulations, including good clinical practice, or GCP, and other related requirements
for conducting, monitoring, recording and reporting the results of clinical trials to ensure that the data and results are scientifically credible and accurate,
and that the trial patients are adequately informed of the potential risks of participating in clinical trials and their rights are protected. These regulations are
enforced by the FDA, the Competent Authorities of the Member States of the European Economic Area and comparable foreign regulatory authorities for
any drugs in clinical development. The FDA enforces GCPs through periodic inspections of clinical trial sponsors, principal investigators and trial sites. If
we, our investigators or our CROs fail to comply with applicable GCPs, the clinical data generated in our clinical trials may be called into question and the
FDA  or  comparable  foreign  regulatory  authorities  may  require  us  to  perform  additional  clinical  trials  before  considering  our  marketing  applications  for
approval. We cannot assure you that, upon inspection, the FDA will determine that any of our future clinical trials will comply with GCPs.

In addition, our clinical trials must be conducted with product candidates produced under cGMPs. Our failure or the failure of our investigators or CROs to
comply with these requirements may require us to repeat clinical trials, which would delay the marketing approval process and could also subject us to
enforcement action. We also are required to register certain clinical trials and post the results of such completed clinical trials involving product candidates
for which we receive marketing approval on a government-sponsored database, ClinicalTrials.gov, within certain timeframes. Failure to do so can result in
fines, adverse publicity and civil and criminal sanctions.

Although  we  intend  to  design  the  clinical  trials  for  our  product  candidates,  CROs  will  administer  all  of  the  clinical  trials.  As  a  result,  many  important
aspects of our development programs, including their conduct and timing, will be outside of our direct control. Our reliance on third parties to conduct
future clinical trials will also result in less direct control over the management of data developed through clinical trials than would be the case if we were
relying entirely upon our own staff. Communicating with outside parties can also be challenging, potentially leading to mistakes as well as difficulties in
coordinating activities. Outside parties may:

have staffing difficulties;
fail to comply with contractual obligations;
experience regulatory compliance issues;
undergo changes in priorities or become financially distressed;

•
•
•
•
• make errors in the design, management or retention of our data or data systems; and/or
•

form relationships with other entities, some of which may be our competitors.

These factors may materially adversely affect the willingness or ability of third parties to conduct our clinical trials and may subject us to unexpected cost
increases that are beyond our control. If the CROs do not perform clinical trials in a satisfactory manner, breach their obligations to us or fail to comply
with regulatory requirements, the development, marketing approval and commercialization of our product candidates may be delayed, we may not be able
to obtain marketing approval and commercialize our product candidates, or our development program may be materially and irreversibly harmed. If we are
unable to rely on clinical data collected by our

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CROs,  we  could  be  required  to  repeat,  extend  the  duration  of,  or  increase  the  size  of  any  clinical  trials  we  conduct,  and  this  could  significantly  delay
commercialization and require significantly greater expenditures.

If any of our relationships with these third-party CROs terminate, we may not be able to enter into arrangements with alternative CROs. 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 clinical
trials such CROs are associated with may be extended, delayed or terminated, and we may not be able to obtain marketing approval for or successfully
commercialize our product candidates. As a result, we believe that our financial results and the commercial prospects for our product candidates in the
subject indication would be harmed, our costs could increase and our ability to generate revenue could be delayed.

We have entered into license agreements for lerociclib, a license agreement for the development of COSELA in greater China, and intend to continue
to use third-party collaborators to help us develop and commercialize any new products, and our ability to commercialize such products could be
impaired or delayed if these collaborations are unsuccessful.

Our drug development programs and the potential commercialization of our product candidates will require substantial additional cash to fund expenses.
For some of our product candidates, we may decide to collaborate with pharmaceutical and biotechnology companies for the development and potential
commercialization of those product candidates.

We have entered into license agreements with third-parties, and may continue to selectively pursue strategic collaborations, for the development and
commercialization of our products.  For example, (i) in June 2020, we entered into a license agreement with Genor Biopharma Co. Inc., for the
development and commercialization of lerociclib in the Asia-Pacific region (excluding Japan); (ii) in July 2020, we and EQRx entered into license
agreement pursuant to which we have granted EQRx the exclusive rights to develop and commercialize lerociclib in the U.S., Europe, Japan and all other
global markets, excluding the Asia-Pacific region (except Japan); and (iii)in August 2020, we entered into a license agreement with Nanjing Simcere
Dongyuan Pharmaceutical Co., Ltd, for the development and commercialization of COSELA in Greater China.

In our third-party collaborations, we are dependent upon the success of the collaborators to perform their responsibilities with continued cooperation. Our
collaborators may not cooperate with us or perform their obligations under our agreements with them. We cannot control the amount and timing of our
collaborators’ resources that will be devoted to performing their responsibilities under our agreements with them. Our collaborators may choose to pursue
alternative therapies in preference to those being developed in collaboration with us. The development and commercialization of our product candidates
will be delayed if collaborators fail to conduct their responsibilities in a timely manner or in accordance with applicable regulatory requirements or if they
breach or terminate their collaboration agreements with us. Disputes with our collaborators could also impair our reputation or result in development
delays, decreased revenues, and litigation expenses.

We face significant competition in seeking additional appropriate collaborators. Whether we reach a definitive agreement for a collaboration will depend,
among  other  things,  upon  our  assessment  of  the  collaborator’s  resources  and  expertise,  the  terms  and  conditions  of  the  proposed  collaboration  and  the
proposed collaborator’s evaluation of a number of factors. Those factors may include the design or results of clinical trials, the likelihood of approval by
the FDA or similar regulatory authorities outside the United States, the potential market for the subject product candidate, the costs and complexities of
manufacturing  and  delivering  such  product  candidate  to  patients,  the  potential  of  competing  drugs  and  market  conditions  generally.  The  proposed
collaborator may also consider alternative product candidates or technologies for similar indications that may be available to collaborate on and whether
such a collaboration could be more attractive than the one with us for our product candidate. The terms of any collaborations or other arrangements that we
may establish may not be favorable to us.

We  may  also  be  restricted  under  existing  collaboration  agreements  from  entering  into  future  agreements  on  certain  terms  with  potential  collaborators.
Collaborations  are  complex  and  time-consuming  to  negotiate  and  document.  In  addition,  there  have  been  a  significant  number  of  recent  business
combinations  among  large  pharmaceutical  companies  that  have  resulted  in  a  reduced  number  of  potential  future  collaborators.  We  may  not  be  able  to
negotiate collaborations on a timely basis, on acceptable terms, or at all. If we are unable to do so, we may have to curtail the development of the product
candidate for which we are seeking to collaborate, reduce or delay its development program or one or more of our other development programs, delay its
potential  commercialization  or  reduce  the  scope  of  any  sales  or  marketing  activities,  or  increase  our  expenditures  and  undertake  development  or
commercialization activities at our own expense. If we elect to increase our expenditures to fund development or commercialization activities on our own,
we may need to obtain additional capital, which may not be available to us on acceptable terms or at all. If we do not have sufficient funds, we may not be
able to further develop our product candidates or bring them to market and generate drug revenue.

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In addition, any collaboration that we enter into may not be successful. The success of our collaboration arrangements will depend heavily on the efforts
and activities of our collaborators. Collaborators generally have significant discretion in determining the efforts and resources that they will apply to these
collaborations.  Any  such  collaboration  may  require  us  to  incur  non-recurring  or  other  charges,  increase  our  near-  and  long-term  expenditures  and  pose
significant  integration  or  implementation  challenges  or  disrupt  our  management  or  business.  These  transactions  would  entail  numerous  operational  and
financial  risks,  including  exposure  to  unknown  liabilities,  disruption  of  our  business  and  diversion  of  our  management’s  time  and  attention  in  order  to
manage  a  collaboration,  incurrence  of  substantial  debt  or  dilutive  issuances  of  equity  securities  to  pay  transaction  consideration  or  costs,  higher  than
expected collaboration or integration costs, write-down of assets or goodwill or impairment charges, increased amortization expenses and difficulty and
cost in facilitating the collaboration.

Lastly, disagreements between parties to a collaboration arrangement regarding clinical development and commercialization matters can lead to delays in
the  development  process  or  commercializing  the  applicable  product  candidate  and,  in  some  cases,  termination  of  the  collaboration  arrangement.  These
disagreements can be difficult to resolve if neither of the parties has final decision-making authority. Collaborations with pharmaceutical or biotechnology
companies and other third parties often are terminated or allowed to expire by the other party. Any such termination or expiration would adversely affect us
financially and could harm our business reputation.

We contract with third parties for the manufacture of COSELA and our other product candidates for preclinical studies, clinical trials, and commercial
supply  This  reliance  on  third  parties  increases  the  risk  that  we  will  not  have  sufficient  quantities  of  COSELA  and  our  other  product  candidates  or
drugs or such quantities at an acceptable cost, which could delay, prevent or impair our development or commercialization efforts.

We do not currently own or operate, nor do we have any plans to establish in the future, any manufacturing facilities. We rely, and expect to continue to
rely, on third parties for the manufacture of COSELA and our other product candidates for preclinical studies, clinical trials, and commercial supply of
COSELA  and  our  other  product  candidates.  This  reliance  on  third  parties  increases  the  risk  that  we  will  not  have  sufficient  quantities  of  our  product
candidates or drugs or such quantities at an acceptable cost or quality, which could delay, prevent or impair our development or commercialization efforts.

The  facilities  used  to  manufacture  COSELA  and  our  other  product  candidates  (drug  substance  and  drug  product)  must  be  approved  by  the  FDA  (and
comparable foreign regulatory authority depending on where marketing authorizations are filed) before marketing authorizations are approved. Often, but
not  always,  these  inspections  are  triggered  by  marketing  authorization  submissions.  We  are  completely  dependent  on  our  contract  manufacturers  for
compliance  with  current  Good  Manufacturing  Practices  (cGMPs)  in  connection  with  the  manufacture  of  our  product  candidates.  If  our  contract
manufacturers cannot successfully manufacture material that conforms to our specifications and to the regulatory requirements of the FDA or comparable
foreign regulatory authority, then we will not be able to use the products produced at their manufacturing facilities. In addition, we have no control over the
ability of our contract manufacturers to maintain adequate quality control, quality assurance and qualified personnel. If the FDA or comparable foreign
regulatory  authority  finds  that  these  facilities  do  not  comply  with  cGMP,  we  may  need  to  find  alternative  manufacturing  facilities,  which  would
significantly impact our ability to develop, obtain marketing approval for or market our product candidates, if approved. Further, our failure, or the failure
of  our  third  party  manufacturers,  to  comply  with  these  or  other  applicable  regulations  could  result  in  sanctions  being  imposed  on  us,  including  clinical
holds,  fines,  injunctions,  civil  penalties,  delays,  suspension  or  withdrawal  of  approvals,  license  revocation,  seizures  or  recalls  of  product  candidates  or
drugs, if approved, operating restrictions and criminal prosecutions, any of which could significantly and adversely affect our business and supplies of our
product candidates.

We may be unable to establish any agreements with third-party manufacturers or do so on acceptable terms. Even if we are able to establish agreements
with third party manufacturers, reliance on third party manufacturers entails additional risks, including:

•
•
•
•

reliance on the third party for regulatory compliance and quality assurance;
the possible breach of the manufacturing agreement by the third party;
the possible misappropriation of our proprietary information, including our trade secrets and know-how; and
the possible termination or nonrenewal of the agreement by the third party at a time that is costly or inconvenient for us.

COSELA and our other product candidates and any other drugs that we may develop may compete with other product candidates and approved drugs for
access  to  manufacturing  facilities.  There  are  a  limited  number  of  manufacturers  that  operate  under  cGMP  regulations  and  that  might  be  capable  of
manufacturing for us.

Any performance failure on the part of our existing or future manufacturers could delay clinical development, marketing approval, or commercialization
efforts. If our current contract manufacturers cannot perform as agreed, we may be required to replace such manufacturers. Although we believe that there
are  several  potential  alternative  manufacturers  who  could  manufacture  our  product  candidates,  we  may  incur  added  costs  and  delays  in  identifying  and
qualifying any such replacements.

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Our current and anticipated future dependence upon others for the manufacture of our product candidates or drugs may adversely affect our future profit
margins and our ability to commercialize any drugs that receive marketing approval on a timely and competitive basis.

We, or our third-party manufacturers, may be unable to successfully scale-up manufacturing of COSELA or our other product candidates in sufficient
quality  and  quantity,  which  would  delay  or  prevent  us  from  developing  COSELA  or  our  other  product  candidates  and  commercializing
approved products.

In  order  to  conduct  large-scale  clinical  trials  of  COSELA  and  our  other  product  candidates,  or  successfully  commercialize  COSELA,  we  will  need  to
manufacture  them  in  large  quantities.  We,  or  any  of  our  manufacturing  partners,  may  be  unable  to  successfully  increase  the  manufacturing  capacity
COSELA or for any of our other product candidates in a timely or cost-effective manner, or at all. In addition, quality issues may arise during scale-up
activities. If we, or any manufacturing partners, are unable to successfully scale up the manufacture COSELA or our other product candidates in sufficient
quality  and  quantity,  the  development,  testing,  and  clinical  trials  of  that  product  candidate  may  be  delayed  or  infeasible,  and  regulatory  approval  or
commercial launch of any resulting product may be delayed or not obtained, which could significantly harm our business.

The third parties upon which we rely for the supply of the drug substance, and drug products are our sole sources of supply and have limited capacity,
and the loss of any of these suppliers could harm our business.

Some drug substances and drug products for our product candidates are supplied to us from single source suppliers with limited capacity. Our ability to
successfully develop our product candidates, and to ultimately supply our commercial drugs in quantities sufficient to meet the market demand, depends in
part on our ability to obtain the drug substances and drug products in accordance with cGMP requirements and in sufficient quantities for clinical trials and
commercialization.      It  is  possible  that  our  suppliers  of  drug  substance  or  drug  product  which  are  not  dual-sourced  could,  for  any  reason,  cease  their
operations.  

We do not know whether our suppliers will be able to meet our demand, either because of the nature of our agreements with those suppliers, our limited
experience with those suppliers or our relative importance as a customer to those suppliers. It may be difficult for us to assess their ability to timely meet
our demand in the future based on past performance. While our suppliers have generally met our demand for their products on a timely basis in the past,
they may subordinate our needs in the future to their other customers.

For all of our product candidates, we intend to identify and qualify additional manufacturers to provide drug substances and drug products ideally prior to
submission of an NDA to the FDA and/or an MAA to the EMA. Establishing additional or replacement suppliers for drug substances and drug products for
our product candidates, if required, may not be accomplished quickly. If we are able to find a replacement supplier, such replacement supplier would need
to be qualified, or we may have to perform comparative studies comparing the drug product from a new manufacturer to the product used in any completed
clinical trials. All of this may require additional regulatory approval, which could result in further delay. While we seek to maintain adequate inventory of
drug substance and drug product for our product candidates, any interruption or delay in the supply of components or materials, or our inability to obtain
such drug substance and drug product from alternate sources at acceptable prices in a timely manner could impede, delay, limit, or prevent our development
efforts, which could harm our business, results of operations, financial condition, and prospects.

Risks related to our intellectual property

If we are unable to obtain and maintain intellectual property protection for our technology and products, or if the scope of the intellectual property
protection obtained is not sufficiently broad, our competitors could commercialize technology and products similar or identical to ours, and our ability
to successfully commercialize our technology and products may be impaired and, if we infringe the valid patent rights of others, we may be prevented
from making, using or selling our products or may be subject to damages or penalties.

Our  success  depends  in  large  part  on  our  ability  to  obtain  and  maintain  patents  in  the  United  States  and  other  countries  that  adequately  protect  our
proprietary technology and products. We seek to protect our proprietary position by filing patent applications in the United States and in foreign countries
that cover our novel product candidates and their uses, pharmaceutical formulations and dosages, and processes for the manufacture of them. Our patent
portfolio currently includes both patents and patent applications.

The patent prosecution process is expensive and time-consuming. We may not be able to file and prosecute all necessary or desirable patent applications at
a  reasonable  cost  or  in  a  timely  manner.  We  may  choose  not  to  seek  patent  protection  for  certain  innovations  and  may  choose  not  to  pursue  patent
protection  in  certain  jurisdictions.  Under  the  laws  of  certain  jurisdictions,  patents  or  other  intellectual  property  rights  may  be  unavailable  or  limited  in
scope. It is also possible that we will fail to identify patentable aspects of our research and development before it is too late to obtain patent protection.

We currently solely own or exclusively license our patents and patent applications and we have the right to control the prosecution of the in-licensed patent
applications. In the future, we may choose to in-license additional patents or patent applications from third

54

parties  that  we  conclude  are  useful  or  necessary  for  our  business  goals.  We  may  not  have  the  right  to  control  the  preparation,  filing,  prosecution  or
maintenance of such patent applications. Therefore, if we do license additional patents or patent applications in the future, these patents and applications
may not be prosecuted and enforced in a manner consistent with the best interests of our business.

The patent position of biotechnology and pharmaceutical companies generally is highly uncertain, involves complex legal and factual questions and has in
recent years been the subject of much litigation. Publications of discoveries in the scientific literature often lag behind the actual discoveries, and patent
applications in the United States and other jurisdictions are typically not published until 18 months after filing, or in some cases not at all. Therefore, we
cannot know with certainty whether we were the first to make the inventions claimed in our owned or licensed patents or pending patent applications, or
that we were the first to file for patent protection of such inventions. As a result, the issuance, scope, validity, enforceability and commercial value of our
patent  rights  are  highly  uncertain.  Our  pending  and  future  patent  applications  may  not  result  in  patents  being  issued  which  protect  our  technology  or
products, in whole or in part, or which effectively prevent others from commercializing competitive technologies and products. Changes in either the patent
laws or interpretation of the patent laws in the United States and other countries may diminish the value of our patents or narrow the scope of our patent
protection.

Recent patent reform legislation could increase the uncertainties and costs surrounding the prosecution of our patent applications and the enforcement or
defense of our issued patents. On September 16, 2011, the Leahy-Smith America Invents Act, or the Leahy-Smith Act, was signed into law. The Leahy-
Smith Act includes a number of significant changes to U.S. patent law. These include provisions that affect the way patent applications are prosecuted and
may  also  affect  patent  litigation.  The  U.S.  Patent  and  Trademark  Office,  or  U.S.  PTO,  recently  developed  new  regulations  and  procedures  to  govern
administration of the Leahy-Smith Act, and many of the substantive changes to patent law associated with the Leahy-Smith Act, and in particular, the first
to file provisions, became effective on March 16, 2013. The Leahy-Smith Act also created certain new administrative adversarial proceedings, discussed
below.  It  is  not  clear  what,  if  any,  impact  the  Leahy-Smith  Act  will  have  on  the  operation  of  our  business.  However,  the  Leahy-Smith  Act  and  its
implementation could increase the uncertainties and costs surrounding the prosecution of our patent applications and the enforcement or defense of our
issued patents, all of which could have a material adverse effect on our business and financial condition.

The U.S. Supreme Court has issued opinions in patent cases in the last few years that many consider may weaken patent protection in the United States,
either  by  narrowing  the  scope  of  patent  protection  available  in  certain  circumstances,  holding  that  certain  kinds  of  innovations  are  not  patentable  or
generally otherwise making it easier to invalidate patents in court. Additionally, there have been recent proposals for additional changes to the patent laws
of the United States and other countries that, if adopted, could impact our ability to obtain patent protection for our proprietary technology or our ability to
enforce our proprietary technology. Depending on future actions by the U.S. Congress, the U.S. courts, the U.S. PTO and the relevant law-making bodies in
other countries, the laws and regulations governing patents could change in unpredictable ways that would weaken our ability to obtain new patents or to
enforce our existing patents and patents that we might obtain in the future.

Even if our patent applications issue as patents, they may not issue in a form that will provide us with any meaningful protection, prevent competitors from
competing with us or otherwise provide us with any competitive advantage. Our competitors may be able to circumvent our owned or licensed patents by
developing similar or alternative technologies or products in a non-infringing manner.

The issuance of a patent is not conclusive as to its inventorship, scope, validity or enforceability, and our owned and licensed patents may be challenged in
the courts or patent offices in the United States and in other countries. Such challenges may result in loss of exclusivity or in patent claims being narrowed,
invalidated  or  held  unenforceable,  in  whole  or  in  part,  which  could  limit  our  ability  to  stop  others  from  using  or  commercializing  similar  or  identical
technology  and  products,  or  limit  the  duration  of  the  patent  protection  of  our  technology  and  products.  Given  the  amount  of  time  required  for  the
development,  testing  and  regulatory  review  of  new  product  candidates,  patents  protecting  such  candidates  might  expire  before  or  shortly  after  such
candidates  are  commercialized.  As  a  result,  our  owned  and  licensed  patent  portfolio  may  not  provide  us  with  sufficient  rights  to  exclude  others  from
commercializing products similar or identical to ours. Likewise, a court could uphold and enforce a third-party patent that it rules we have infringed, which
would subject us to damages or prevent us from making, using or selling our products.

During patent prosecution in the United States and in most foreign countries, a third party can submit prior art or arguments to the reviewing patent office
to  attempt  to  prevent  the  issuance  of  a  competitor’s  patent.  For  example,  our  pending  patent  applications  may  be  subject  to  a  third-party  pre-issuance
submission of prior art to the U.S. PTO or an Observation in Europe. Such submission may convince the receiving patent office not to issue the patent. In
addition, if the breadth or strength of protection provided by our patents and patent applications is reduced by such third-party submission, it could affect
the  value  of  our  resulting  patent  or  dissuade  companies  from  collaborating  with  us  to  license,  develop  or  commercialize  current  or  future  product
candidates.

The risks described here pertaining to our patents and other intellectual property rights also apply to any intellectual property rights that we may license in
the future, and any failure to obtain, maintain and enforce these rights could have a material adverse effect on our business. In some cases, we may not have
control over the prosecution, maintenance or enforcement of the patents that we license, and our licensors may fail to take the steps that we believe are
necessary or desirable in order to obtain, maintain and enforce the

55

licensed patents. Any inability on our part to adequately protect or defend our intellectual property may have a material adverse effect on our business,
operating results and financial position.

Some  intellectual  property  may  have  been  discovered  through  government  funded  programs  and  thus  may  be  subject  to  federal  regulations  such  as
“march-in”  rights,  certain  reporting  requirements  and  a  preference  for  U.S.-based  companies.  Compliance  with  such  regulations  may  limit  our
exclusive rights, and limit our ability to contract with non-U.S. manufacturers.

Many of our intellectual property rights were generated through the use of U.S. government funding and are therefore subject to certain federal regulations.
As a result, the U.S. government may have certain rights to intellectual property embodied in our current or future product candidates pursuant to the Bayh-
Dole Act of 1980, or Bayh-Dole Act. These U.S. government rights in certain inventions developed under a government-funded program include a non-
exclusive, non-transferable, irrevocable worldwide license to use inventions for any governmental purpose. In addition, the U.S. government has the right,
under certain limited circumstances, to require us to grant exclusive, partially exclusive, or non-exclusive licenses to any of these inventions to a third party
if it determines that: (i) adequate steps have not been taken to commercialize the invention; (ii) government action is necessary to meet public health or
safety needs; or (iii) government action is necessary to meet requirements for public use under federal regulations (also referred to as “march-in rights”).
The U.S. government also has the right to take title to these inventions if we fail to disclose the invention to the government or fail to file an application to
register the intellectual property within specified time limits. Intellectual property generated under a government funded program is also subject to certain
reporting requirements, compliance with which may require us to expend substantial resources. In addition, the U.S. government requires that any products
embodying  the  subject  invention  or  produced  through  the  use  of  the  subject  invention  be  manufactured  substantially  in  the  United  States.  The
manufacturing preference requirement can be waived if the owner of the intellectual property can show that reasonable but unsuccessful efforts have been
made  to  grant  licenses  on  similar  terms  to  potential  licensees  that  would  be  likely  to  manufacture  substantially  in  the  United  States  or  that  under  the
circumstances domestic manufacture is not commercially feasible. This preference for U.S. manufacturers may limit our ability to contract with non-U.S.
product  manufacturers  for  products  covered  by  such  intellectual  property.  To  the  extent  any  of  our  current  or  future  intellectual  property  is  generated
through the use of U.S. government funding, the provisions of the Bayh-Dole Act may similarly apply.

We may become involved in administrative adversarial proceedings in the U.S. PTO or in the patent offices of foreign countries brought by a third party
to attempt to cancel or invalidate our patent rights, which could be expensive, time consuming and cause a loss of patent rights.

The  Leahy-Smith  Act  created  for  the  first  time  new  procedures  to  challenge  issued  patents  in  the  United  States,  including  post-grant  review  and  inter
partes review proceedings, which some third parties have been using to cause the cancellation of selected or all claims of issued patents of competitors. For
a patent with a priority date of March 16, 2013 or later, a petition for post-grant review can be filed by a third party in a nine-month window from issuance
of the patent. A petition for inter partes review can be filed immediately following the issuance of a patent if the patent was filed prior to March 16, 2013.
A petition for inter partes review can be filed after the nine-month period for filing a post-grant review petition has expired for a patent with a priority date
of March 16, 2013 or later. Post-grant review proceedings can be brought on any ground of challenge, whereas inter partes review proceedings can only be
brought  to  raise  a  challenge  based  on  published  prior  art.  These  administrative  adversarial  actions  at  the  U.S.  PTO  review  patent  claims  without  the
presumption of validity afforded to U.S. patents in lawsuits in U.S. federal courts, use a lower burden of proof than used by U.S. federal courts. The U.S.
PTO issued a Final Rule on November 11, 2018, announcing that it will now use the same claim construction currently used in the U.S. federal courts to
interpret patent claims, which is the plain and ordinary meaning of words used. If any of our patents are challenged by a third party in such a U.S. patent
office proceeding, there is no guarantee that we will be successful in defending the patent, which would result in a loss of the challenged patent right to us.
Further, even if a U.S. federal court or PTAB rules that a patent owned by us is valid and enforceable, if the other venue takes a contrary position, the patent
is considered invalid and not enforceable. Therefore, a party seeking to invalidate a patent owned by us in the United States has the procedural advantage of
two alternative venues.

Opposition or invalidation procedures are also available in most foreign countries. Many foreign authorities, such as the authorities at the European Patent
Office, have only post-grant opposition proceedings, however, certain countries, such as India, have both pre-grant and post-grant opposition proceedings.
These procedures have been used frequently against pharmaceutical patents in foreign countries. For example, in some foreign countries, these procedures
are  used  by  generic  companies  to  hold  up  an  innovator’s  patent  rights  as  a  means  to  allow  the  generic  company  to  enter  the  market.  This  activity  is
particularly prevalent in India, China and South America and may become more prevalent in Africa and other parts of Asia as certain countries reach more
established economies. If any of our patents are challenged in a foreign opposition or invalidation proceeding, we could face significant costs to defend our
patents, and we may not be successful. Uncertainties resulting from the initiation, continuation or loss of such proceedings could have a material adverse
effect on our ability to compete in the market place. Further, in many foreign jurisdictions, the losing party must pay the attorneys’ fees of the winning
party, which can be substantial.

56

We may have to file one or more lawsuits in court to prevent a third party from selling a product or using a product in a manner that infringes our
patent, which could be expensive, time consuming and unsuccessful, and ultimately result in the loss of our proprietary market.

Because  competition  in  our  industry  is  intense,  competitors  may  infringe  or  otherwise  violate  our  issued  patents,  patents  of  our  licensors  or  other
intellectual  property.  To  counter  infringement  or  unauthorized  use,  we  may  be  required  to  file  infringement  lawsuits,  which  can  be  expensive  and  time
consuming. Any claims we assert against perceived infringers could provoke these parties to assert counterclaims against us alleging that we infringe their
patents. In addition, in a patent infringement proceeding, a court may decide that a patent of ours is invalid or unenforceable, in whole or in part, construe
the patent’s claims narrowly or refuse to stop the other party from using the technology at issue on the grounds that our patents do not cover the technology
in question. An adverse result in any litigation proceeding could put one or more of our patents at risk of being invalidated or interpreted narrowly. We may
also  elect  to  enter  into  license  agreements  in  order  to  settle  patent  infringement  claims  or  to  resolve  disputes  prior  to  litigation,  and  any  such  license
agreements may require us to pay royalties and other fees that could be significant. Furthermore, because of the substantial amount of discovery required in
connection with intellectual property litigation, there is a risk that some of our confidential information could be compromised by disclosure.

Because our CDK 4/6 inhibitor candidates are small molecules, after commercialization they will be subject in the United States to the patent litigation
process of the Hatch Waxman Act, which allows a generic company to submit an Abbreviated New Drug Application, or ANDA, to the FDA to obtain
approval to sell our drug using bioequivalence data only. Under the Hatch Waxman Act, we will have the opportunity to list all of our patents that cover our
drug product or its method of use in the FDA’s compendium of “Approved Drug Products with Therapeutic Equivalence Evaluation,” sometimes referred
to  as  the  FDA’s  Orange  Book.  A  generic  company  can  submit  an  ANDA  to  the  FDA  four  years  after  our  drug  approval  because  our  drug  products
candidates, COSELA and lerociclib, would be deemed new chemical entities. The submission of the ANDA by a generic company is considered a technical
act of patent infringement. The generic company can certify that it will wait until the natural expiration date of our listed patents to sell a generic version of
our product or can certify that one or more of our listed patents are invalid, unenforceable, or not infringed. If the latter, we will have 45 days to bring a
patent  infringement  lawsuit  against  the  generic  company.  This  will  initiate  a  challenge  to  one  or  more  of  our  Orange  Book  listed  patents  based  on
arguments from the generic company that either our patent is invalid, unenforceable or not infringed. Under the Hatch Waxman Act, if a lawsuit is brought,
the FDA is prevented from issuing a final approval on the generic drug until the earlier of seven-and-a-half years from our drug approval or a final decision
of a court holding that our asserted patent claims are invalid, unenforceable or not infringed. If we do not properly list our relevant patents in the Orange
Book,  or  timely  file  a  lawsuit  in  response  to  a  certification  from  a  generic  company  under  an  ANDA,  or  if  we  do  not  prevail  in  the  resulting  patent
litigation, we can lose our proprietary market, which can rapidly become generic. Further, even if we do correctly list our relevant patents in the Orange
Book, bring a lawsuit in a timely manner and prevail in that lawsuit, it may be at a very significant cost to us of attorneys’ fees and employee time and
distraction over a long period. Further, it is common for more than one generic company to try to sell an innovator drug at the same time, and so we may be
faced with the cost and distraction of multiple lawsuits. We may also determine it is necessary to settle the lawsuit in a manner that allows the generic
company to enter our market prior to the expiration of our patent or otherwise in a manner that adversely affects the strength, validity or enforceability of
our patent.

A number of pharmaceutical companies have been the subject of intense review by the U.S. Federal Trade Commission or a corresponding agency in
another  country  based  on  how  they  have  conducted  or  settled  drug  patent  litigation,  and  certain  reviews  have  led  to  an  allegation  of  an  anti-trust
violation, sometimes resulting in a fine or loss of rights. We cannot be sure that we would not also be subject to such a review or that the result of the
review would be favorable to us, which could result in a fine or penalty.

The U.S. Federal Trade Commission, or FTC, has brought a number of lawsuits in federal court in the past few years to challenge Hatch Waxman ANDA
litigation settlements between innovator companies and generic companies as anti-competitive. The FTC has taken an aggressive position that anything of
value is a payment, whether money is paid or not. Under their approach, if an innovator as part of a patent settlement agrees not to launch or delay launch
of an authorized generic during the 180-day period granted to the first generic company to challenge an Orange Book listed patent covering an innovator
drug, or negotiates a delay in entry without payment, the FTC may consider it an unacceptable reverse payment. The biopharmaceutical industry argues
that such agreements are rational business decisions to dismiss risk and are immune from antitrust attack if the terms of the settlement are within the scope
of  the  exclusionary  potential  of  the  patent.  In  2013,  the  U.S.  Supreme  Court,  in  a  five-to-three  decision  in  FTC  v.  Actavis,  Inc.  rejected  both  the
biopharmaceutical  industry’s  and  FTC’s  arguments  with  regard  to  so-called  reverse  payments,  and  held  that  whether  a  “reverse  payment”  settlement
involving the exchange of consideration for a delay in entry is subject to an anticompetitive analysis depends on five considerations: (a) the potential for
genuine adverse effects on competition; (b) the justification of payment; (c) the patentee’s ability to bring about anticompetitive harm; (d) whether the size
of the payment is a workable surrogate for the patent’s weakness; and (e) that antitrust liability for large unjustified payments does not prevent litigating
parties from settling their lawsuits, for example, by allowing the generic to enter the market before the patent expires without the patentee’s paying the
generic. Furthermore, whether a reverse payment is justified depends upon its size, its scale in relation to the patentee’s anticipated future litigation costs,
its independence from other services for which it might represent payment, as was the case in Actavis, and the lack of any other convincing justification.
The Court held that reverse payment settlements can potentially violate antitrust laws and are subject to the standard antitrust rule-of-reason analysis, with
the burden of proving that an agreement is unlawful on the FTC and leaving to lower courts the structuring of such rule of reason analysis. If we are faced
with  drug  patent  litigation,  including  Hatch  Waxman  litigation  with  a  generic  company,  we  could  be  faced  with  such  an  FTC  challenge  based  on  that
activity, including how or whether we settle the case, and even if we strongly disagree with the FTC’s position, we could face a significant expense or
penalty.

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Third parties may initiate legal proceedings alleging that we are infringing their intellectual property rights, the outcome of which would be uncertain
and could have a material adverse effect on the success of our business.

We  may  become  party  to,  or  threatened  with,  adversarial  proceedings  or  litigation  regarding  intellectual  property  rights  covering  our  products  and
technology,  including  inter  parties  review  proceedings  before  the  U.S.  PTO.  Third  parties  may  assert  infringement  claims  against  us  based  on  existing
patents or patents that may be granted in the future. For example, we are aware that many companies, universities and institutions, including competitors,
have filed patent applications and received issued patents in our general areas of CDK 4/6 inhibitors and SERD compounds and their uses in methods of
treatment  and  combinations  with  other  drugs  as  well  as  their  processes  of  manufacture.  If  we  are  found  to  infringe  a  third  party’s  intellectual  property
rights,  we  could  be  required  to  litigate  the  validity  or  enforceability  of  the  third-party  asserted  patent,  which  may  be  expensive,  time-consuming  and
distracting  to  the  company,  and  which  litigation  we  may  lose.  We  may,  instead  of  litigating,  seek  to  obtain  a  license  from  such  third  party  to  continue
developing and marketing our products and technology. However, we may not be able to obtain any required license on commercially reasonable terms or
at all. Even if we were able to obtain a license, it could be non-exclusive, thereby giving our competitors access to the same technologies licensed to us. We
could  be  forced,  including  by  court  order,  to  cease  commercializing  the  infringing  technology  or  product.  In  addition,  we  could  be  found  liable  for
monetary  damages,  including  treble  damages  and  attorneys’  fees  if  we  are  found  to  have  willfully  infringed  a  patent.  A  finding  of  infringement  could
prevent us from commercializing our product candidates or force us to cease some of our business operations, which could materially harm our business.
Claims that we have misappropriated the confidential information or trade secrets of third parties could have a similar negative impact on our business.

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

Filing, prosecuting and defending patents on our product candidates in all countries throughout the world would be prohibitively expensive, and therefore
we  only  file  for  patent  protection  in  selected  countries.  The  requirements  for  patentability  may  differ  in  certain  countries,  particularly  in  developing
countries.  Moreover,  our  ability  to  protect  and  enforce  our  intellectual  property  rights  may  be  adversely  affected  by  unforeseen  changes  in  foreign
intellectual property laws.

The laws of foreign countries may not protect our rights to the same extent as the laws of the United States. For example, Europe, India, China and certain
other countries do not allow patents for methods of treating the human body. Many companies have encountered significant problems in protecting and
defending intellectual property rights in certain foreign jurisdictions that do not favor patent protection on drugs. This could make it difficult for us to stop
the  infringement  of  our  patents  or  the  misappropriation  of  our  other  intellectual  property  rights.  Competitors  may  use  our  technologies  in  jurisdictions
where we have not obtained patent protection to develop their own drugs and, further, may export otherwise infringing drugs to territories where we have
patent protection, if our ability to enforce our patents to stop infringing activities is inadequate. These drugs may compete with our product candidates, and
our patents or other intellectual property rights may not be effective or sufficient to prevent them from competing.

Proceedings  to  enforce  our  patent  rights  in  foreign  jurisdictions,  whether  or  not  successful,  could  result  in  substantial  costs  and  divert  our  efforts  and
resources from other aspects of our business. Furthermore, while we intend to protect our intellectual property rights in the major markets for our product
candidates, we cannot ensure that we will be able to initiate or maintain similar efforts in all jurisdictions in which we may wish to market our product
candidates. Accordingly, our efforts to protect our intellectual property rights in such countries may be inadequate.

A number of foreign countries have stated that they are willing to issue compulsory licenses to patents held by innovator companies on approved drugs to
allow the government or one or more third party companies to sell the approved drug without the permission of the innovator patentee where the foreign
government concludes it is in the public interest. India, for example, has used such a procedure to allow domestic companies to make and sell patented
drugs without innovator approval. There is no guarantee that patents covering any of our drugs will not be subject to a compulsory license in a foreign
country, or that we will have any influence over if or how such a compulsory license is granted. Further, Brazil allows its regulatory agency ANVISA to
participate in deciding whether to grant a drug patent in Brazil, and patent grant decisions are made based on several factors, including whether the patent
meets the requirements for a patent and whether such a patent is deemed in the country’s interest. In addition, several other countries have created laws that
make  it  more  difficult  to  enforce  drug  patents  than  patents  on  other  kinds  of  technologies.  Further,  under  the  treaty  on  the  Trade-Related  Aspects  of
Intellectual Property, or TRIPS, as interpreted by the Doha Declaration, countries in which drugs are manufactured are required to allow exportation of the
drug to a developing country that lacks adequate manufacturing capability. Therefore, our drug markets in the United States or foreign countries may be
affected by the influence of current public policy on patent issuance, enforcement or involuntary licensing in the healthcare area.

In addition, in November 2015, members of the World Trade Organization, or the WTO, which administers TRIPS, voted to extend the exemption against
enforcing pharmaceutical drug patents in least developed countries until 2033. We currently have no patent applications filed in least developed countries,
and our current intent is not to file in these countries in the future, at least in part due to this WTO pharmaceutical patent exemption.

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Obtaining  and  maintaining  our  patent  protection  depends  on  compliance  with  various  procedural,  document  submission,  fee  payment  and  other
requirements  imposed  by  governmental  patent  agencies,  and  our  patent  protection  could  be  reduced  or  eliminated  for  non-compliance  with  these
requirements.

Periodic maintenance fees, renewal fees, annuity fees and various other governmental fees on patents and/or applications will be due to be paid to the U.S.
PTO and various governmental patent agencies outside of the United States in several stages over the lifetime of the patents and/or applications. We have
systems in place to remind us to pay these fees, and we employ an outside firm and rely on our outside counsel to pay these fees due to non-U.S. patent
agencies. We employ reputable law firms and other professionals to help us comply, and in many cases, an inadvertent lapse can be cured by payment of a
late fee or by other means in accordance with the applicable rules. However, there are situations in which non-compliance can result in abandonment or
lapse of the patent or patent application, resulting in partial or complete loss of patent rights in the relevant jurisdiction. In such an event, our competitors
might be able to enter the market and this circumstance would have a material adverse effect on our business.

Intellectual property litigation could cause us to spend substantial resources and distract our personnel from their normal responsibilities.

Litigation  or  other  legal  proceedings  relating  to  intellectual  property  claims,  with  or  without  merit,  is  unpredictable  and  generally  expensive  and  time
consuming and is likely to divert significant resources from our core business, including distracting our technical and management personnel from their
normal responsibilities. Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a
risk  that  some  of  our  confidential  information  could  be  compromised  by  disclosure  during  this  type  of  litigation.  In  addition,  there  could  be  public
announcements of the results of hearings, motions or other interim proceedings or developments and if securities analysts or investors perceive these results
to be negative, it could have a substantial adverse effect on the price of our common stock. Such litigation or proceedings could substantially increase our
operating losses and reduce the resources available for development activities or any future sales, marketing or distribution activities.

We  may  not  have  sufficient  financial  or  other  resources  to  adequately  conduct  such  litigation  or  proceedings.  Some  of  our  competitors  may  be  able  to
sustain the costs of such litigation or proceedings more effectively than we can because of their greater financial resources and more mature and developed
intellectual property portfolios. Accordingly, despite our efforts, we may not be able to prevent third parties from infringing upon or misappropriating or
from  successfully  challenging  our  intellectual  property  rights.  Uncertainties  resulting  from  the  initiation  and  continuation  of  patent  litigation  or  other
proceedings could have a material adverse effect on our ability to compete in the marketplace.

If we fail to comply with our obligations under the license agreement with the University of Illinois, we could lose license rights that are necessary for
developing and commercializing rintodestrant.

Our  exclusive  license  with  the  University  of  Illinois,  or  the  University,  for  technology  relating  to  rintodestrant  imposes  various  development,
commercialization, royalty payment, diligence and other obligations on us. Specifically, we are required to:

•
•
•
•
•
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pay the University a minimum annual fee and potential milestone payments;
pay the University low single-digit royalties on all net sales of products and a share of any sublicensing revenues;
use commercially reasonable efforts to bring products to market;
provide financial reports to the University;
file, prosecute, defend and maintain patent rights; and
indemnify the University against certain claims and maintain insurance coverage.

If  we  breach  any  of  these  obligations,  the  University  may  have  the  right  to  terminate  the  license,  which  would  result  in  our  being  unable  to  develop,
manufacture  and  sell  products  that  are  covered  by  the  licensed  technology,  including  rintodestrant,  or  in  a  competitor’s  gaining  access  to  the  licensed
technology.

We may be subject to claims by third parties asserting that our employees or we have misappropriated their intellectual property, or claiming ownership
of what we regard as our own intellectual property.

Many  of  our  employees  were  previously  employed  at  universities  or  other  biotechnology  or  pharmaceutical  companies,  including  our  competitors  or
potential competitors. Although we try to ensure that our employees do not use the proprietary information or know-how of others in their work for us, we
may be subject to claims that these employees or we have used or disclosed intellectual property, including trade secrets or other proprietary information, of
any such employee’s former employer. Litigation may be necessary to defend against these claims.

In addition, while it is our policy to require our employees and contractors who may be involved in the development of intellectual property to execute
agreements  assigning  such  intellectual  property  to  us,  we  may  be  unsuccessful  in  executing  such  an  agreement  with  each  party  who  in  fact  develops
intellectual property that we regard as our own. Our and their assignment agreements may not be

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self-executing or may be breached, and we may be forced to bring claims against third parties, or defend claims they may bring against us, to determine the
ownership of what we regard as our intellectual property.

If  we  fail  in  prosecuting  or  defending  any  such  claims,  in  addition  to  paying  monetary  damages,  we  may  lose  valuable  intellectual  property  rights  or
personnel.  Even  if  we  are  successful  in  prosecuting  or  defending  against  such  claims,  litigation  could  result  in  substantial  costs  and  be  a  distraction  to
management.

If we are unable to protect the confidentiality of our trade secrets, our business and competitive position would be harmed.

In  addition  to  seeking  patents  for  some  of  our  technology  and  product  candidates,  we  also  rely  on  trade  secrets,  including  unpatented  know-how,
technology and other proprietary information, to maintain our competitive position. We seek to protect these trade secrets, in part, by entering into non-
disclosure  and  confidentiality  agreements  with  parties  who  have  access  to  them,  such  as  our  employees,  corporate  collaborators,  outside  scientific
collaborators, contract manufacturers, consultants, advisors and other third parties. We seek to protect our confidential proprietary information, in part, by
entering into confidentiality and invention or patent assignment agreements with our employees and consultants, however, we cannot be certain that such
agreements have been entered into with all relevant parties. Moreover, to the extent we enter into such agreements, any of these parties may breach the
agreements and disclose our proprietary information, including our trade secrets, and we may not be able to obtain adequate remedies for such breaches.
Enforcing  a  claim  that  a  party  illegally  disclosed  or  misappropriated  a  trade  secret  is  difficult,  expensive  and  time-consuming,  and  the  outcome  is
unpredictable. In addition, some courts inside and outside the United States are less willing or unwilling to protect trade secrets. If any of our trade secrets
were to be lawfully obtained or independently developed by a competitor, we would have no right to prevent them, or those to whom they communicate it,
from  using  that  technology  or  information  to  compete  with  us.  If  any  of  our  trade  secrets  were  to  be  disclosed  to  or  independently  developed  by  a
competitor, our competitive position would be harmed.

Risks related to employee matters, managing growth and other risks related to our business

We  currently  have  a  limited  number  of  employees,  and  our  future  success  depends  on  our  ability  to  retain  key  executives  and  to  attract,  retain  and
motivate qualified personnel.

We are a clinical development company, and, as of December 31, 2020, had only 122 employees, which includes seven executive officers. We are highly
dependent on the commercialization, research and development, clinical, and business development expertise of our executive officers, as well as the other
principal members of our management, scientific and clinical team. Although we have entered into employment agreements with our executive officers,
each  of  them  may  terminate  their  employment  with  us  at  any  time.  We  do  not  maintain  “key  person”  insurance  for  any  of  our  executives  or  other
employees.  In  addition,  we  rely  on  consultants  and  advisors,  including  scientific  and  clinical  advisors,  to  assist  us  in  formulating  our  research  and
development  and  commercialization  strategy.  Our  consultants  and  advisors  may  be  employed  by  employers  other  than  us  and  may  have  commitments
under consulting or advisory contracts with other entities that may limit their availability to us. If we are unable to continue to attract and retain high quality
personnel, our ability to pursue our growth strategy will be limited.

Recruiting  and  retaining  qualified  scientific,  clinical,  manufacturing,  sales  and  marketing  personnel  will  also  be  critical  to  our  success.  The  loss  of  the
services of our executive officers or other key employees could impede the achievement of our research, development and commercialization objectives
and  seriously  harm  our  ability  to  successfully  implement  our  business  strategy.  Furthermore,  replacing  executive  officers  and  key  employees  may  be
difficult and may take an extended period of time because of the limited number of individuals in our industry with the breadth of skills and experience
required to successfully develop, obtain marketing approval of and commercialize products. Competition to hire from this limited pool is intense, and we
may  be  unable  to  hire,  train,  retain  or  motivate  these  key  personnel  on  acceptable  terms  given  the  competition  among  numerous  pharmaceutical  and
biotechnology  companies  for  similar  personnel.  We  also  experience  competition  for  the  hiring  of  scientific  and  clinical  personnel  from  universities  and
research institutions. Failure to succeed in clinical trials may make it more challenging to recruit and retain qualified scientific personnel. If we are unable
to continue to attract and retain high quality personnel, our ability to pursue our growth strategy will be limited.

We may encounter difficulties in managing our growth, which could disrupt our operations.

To  manage  our  anticipated  expansion,  we  must  continue  to  implement  and  improve  our  managerial,  operational  and  financial  systems,  and  continue  to
recruit and train additional qualified personnel. Also, our management may need to divert a disproportionate amount of its attention away from its day-to-
day activities and devote a substantial amount of time to managing these growth activities. Due to our limited resources, we may not be able to effectively
manage the expansion of our operations or recruit and train additional qualified personnel. This may result in weaknesses in our infrastructure, give rise to
operational  mistakes,  loss  of  business  opportunities,  loss  of  employees  and  reduced  productivity  among  remaining  employees.  The  expansion  of  our
operations may lead to significant costs and may divert financial resources from other projects, such as the development of our product candidates. If our
management is unable to effectively manage our expected expansion, our expenses may increase more than expected, our ability to

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generate or increase our revenue could be reduced and we may not be able to implement our business strategy. Our future financial performance and our
ability to commercialize our product candidates, if approved, and compete effectively will depend, in part, on our ability to effectively manage the future
expansion of our company.

Unfavorable global economic conditions could adversely affect our business, financial condition or results of operations.

Our results of operations could be adversely affected by general conditions in the global economy and in the global financial markets. The global financial
crisis at the end of the last decade caused extreme volatility and disruptions in the capital and credit markets. A severe or prolonged economic downturn,
such  as  that  global  financial  crisis,  could  result  in  a  variety  of  risks  to  our  business,  including  our  ability  to  raise  additional  capital  when  needed  on
acceptable terms, if at all. A weak or declining economy could also strain our suppliers, possibly resulting in supply disruption. Any of the foregoing could
harm our business, and we cannot anticipate all of the ways in which the current economic climate and financial market conditions could adversely impact
our business.

We face risks related to health epidemics and outbreaks, including the novel coronavirus (COVID-19), which could significantly disrupt our preclinical
studies and clinical trials.

In December 2019, a novel strain of coronavirus (COVID-19) surfaced in Wuhan, China and in March 2020, in an effort to halt the outbreak of COVID-19,
the United States, along with many other countries, placed significant restrictions on travel and many businesses have announced extended closures which
could adversely impact our operations. Such government-imposed precautionary measures have been relaxed in certain countries or states, but there is no
assurance  that  more  strict  measures  will  be  put  in  place  again  due  to  a  resurgence  in  COVID-19  cases.  The  duration  and  the  geographic  impact  of  the
business disruption and related financial impact resulting from the COVID-19 pandemic cannot be reasonably estimated at this time and our business could
be adversely impacted by the effects of the COVID-19 pandemic.

The enrollment of patients in current and future clinical trials may be slower due to the outbreak of COVID-19. In addition, we rely on independent clinical
investigators, contract research organizations and other third-party service providers to assist us in managing, monitoring and otherwise carrying out our
nonclinical studies and clinical trials, and the outbreak may affect their ability to devote sufficient time and resources to our programs. We also rely on third
party suppliers and contract manufacturers to produce the drug product we utilize in our clinical trials. Although we do not anticipate significant supply
chain  delays  or  shortages  as  a  result  of  the  COVID-19  pandemic  at  this  time,  the  outbreak  may  cause  delays  in  delivery  of  APIs  and  drug  product.
Temporary  closure  of  our  facilities,  or  facilities  at  which  our  clinical  trials  or  nonclinical  studies  are  conducted,  or  restrictions  on  the  ability  of  our
employees,  clinicians  or  patients  enrolled  in  our  trials  to  travel  could  adversely  affect  our  operations  and  our  ability  to  conduct  and  complete  our
nonclinical studies and clinical trials. As a result of the foregoing factors, the expected timeline for data readouts of our clinical trials may be negatively
impacted, which would adversely affect our business.

The COVID-19 pandemic also presents a number of challenges for our emerging commercial business, including, among others, the impact due to travel
limitations  and  government-mandated  work-from-home  or  shelter-in-place  orders,  potential  decreased  product  demand  due  to  reduced  numbers  of  in-
person  meetings  with  prescribers  and  patient  visits  with  physicians,  possible  delay  in  cancer  treatments  with  chemotherapy  as  well  as  increased
unemployment resulting in lower new prescriptions.

In addition, the FDA’s ability to engage in routine regulatory and oversight activities, such as the review and clearance or approval of new products, may be
affected by the COVID-19 pandemic. The FDA and other regulatory authorities may have slower response times or be under-resourced. If the global health
concerns  continue  to  disrupt  or  prevent  the  FDA  or  other  regulatory  authorities  from  conducting  their  regular  reviews,  inspections,  or  other  regulatory
activities,  it  could  significantly  impact  the  ability  of  the  FDA  or  other  regulatory  authorities  to  timely  review  and  process  our  marketing  applications,
clinical trial authorizations, or other regulatory submissions, which could have a material adverse effect on our business.

The full extent to which COVID-19 impacts our business will depend on future developments, including, but not limited to, the ultimate severity and scope
of the pandemic, the pace at which governmental and private travel restrictions and public concerns about public gatherings will ease, the rate at which
historically large increases in unemployment rates will decrease, if at all, and whether, and the speed with which the economy recovers, which are highly
uncertain and cannot be predicted, including new information which may emerge concerning the severity of COVID-19 and the actions to treat or contain
COVID-19 or to otherwise limit its impact.

Our business and operations could suffer in the event of system failures.

We utilize information technology systems and networks to process, transmit and store electronic information in connection with our business activities. As
use of digital technologies has increased, cyber incidents, including deliberate attacks and attempts to gain unauthorized access to computer systems and
networks, have increased in frequency and sophistication. These threats pose a risk to the security of our systems and networks and the confidentiality,
availability  and  integrity  of  our  data.  There  can  be  no  assurance  that  we  will  be  successful  in  preventing  cyber-attacks  or  successfully  mitigating  their
effects.

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Despite the implementation of security measures, our internal computer systems and those of our third-party CROs and other contractors and consultants
are vulnerable to damage from cyber-attack, computer viruses, unauthorized access, natural disasters, terrorism, war and telecommunication and electrical
failures.  Furthermore,  we  have  little  or  no  control  over  the  security  measures  and  computer  systems  of  our  third-party  CROs  and  other  contractors  and
consultants.  While  we  have  not  experienced  any  such  system  failure,  accident,  or  security  breach  to  date,  if  such  an  event  were  to  occur  and  cause
interruptions in our operations, it could result in a material disruption of our programs. For example, the loss of clinical trial data for our product candidates
could  result  in  delays  in  our  marketing  approval  efforts  and  significantly  increase  our  costs  to  recover  or  reproduce  the  data.  To  the  extent  that  any
disruption or security breach results in a loss of or damage to our data or applications or other data or applications relating to our technology or product
candidates,  or  inappropriate  disclosure  of  confidential  or  proprietary  information,  we  could  incur  liabilities  and  the  further  development  of  our  product
candidates could be delayed.

Our employees, principal investigators, CROs and consultants may engage in misconduct or other improper activities, including non-compliance with
regulatory standards and requirements and insider trading.

We are exposed to the risk that our employees, principal investigators, CROs and consultants may engage in fraudulent conduct or other illegal activity.
Misconduct  by  these  parties  could  include  intentional,  reckless  and/or  negligent  conduct  or  disclosure  of  unauthorized  activities  to  us  that  violate  the
regulations of the FDA and other regulatory authorities, including those laws requiring the reporting of true, complete and accurate information to such
authorities; healthcare fraud and abuse laws and regulations in the United States and abroad; or laws that require the reporting of financial information or
data accurately. In particular, sales, marketing and business arrangements in the healthcare industry are subject to extensive laws and regulations intended
to  prevent  fraud,  misconduct,  kickbacks,  self-dealing  and  other  abusive  practices.  These  laws  and  regulations  may  restrict  or  prohibit  a  wide  range  of
pricing, discounting, marketing and promotion, sales commission, customer incentive programs and other business arrangements. Activities subject to these
laws also involve the improper use of information obtained in the course of clinical trials or creating fraudulent data in our preclinical studies or clinical
trials,  which  could  result  in  regulatory  sanctions  and  cause  serious  harm  to  our  reputation.  We  have  adopted  a  code  of  conduct  applicable  to  all  of  our
employees, but it is not always possible to identify and deter misconduct by employees and other third parties, and the precautions we take to detect and
prevent this activity may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental investigations or
other actions or lawsuits stemming from a failure to comply with these laws or regulations. Additionally, we are subject to the risk that a person could
allege such fraud or other misconduct, even if none occurred. If any such actions are instituted against us, and we are not successful in defending ourselves
or  asserting  our  rights,  those  actions  could  have  a  significant  impact  on  our  business,  including  the  imposition  of  civil,  criminal  and  administrative
penalties,  damages,  monetary  fines,  possible  exclusion  from  participation  in  Medicare,  Medicaid  and  other  federal  healthcare  programs,  contractual
damages, reputational harm, diminished profits and future earnings, and curtailment of our operations, any of which could adversely affect our ability to
operate our business and our results of operations.

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

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

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

We  may  acquire  additional  businesses  or  drugs,  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  drugs  resulting  from  a  strategic  alliance  or  acquisition  that  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.

We  or  the  third  parties  upon  which  we  depend  may  be  adversely  affected  by  earthquakes,  pandemics,  or  other  natural  disasters  and  our  business
continuity and disaster recovery plans may not adequately protect us from a serious disaster.

62

Earthquakes, pandemics such as the COVID-19 (coronavirus), or other natural disasters could severely disrupt our operations and have a material adverse
effect on our business, results of operations, financial condition and prospects. If a natural disaster, power outage or other event occurred that prevented us
from  using  all  or  a  significant  portion  of  our  headquarters,  that  damaged  critical  infrastructure,  such  as  the  manufacturing  facilities  of  our  third-party
contract  manufacturers,  or  that  otherwise  disrupted  operations,  it  may  be  difficult  or,  in  certain  cases,  impossible  for  us  to  continue  our  business  for  a
substantial period of time. The disaster recovery and business continuity plans we have in place may prove inadequate in the event of a serious disaster or
similar event. We may incur substantial expenses as a result of the limited nature of our disaster recovery and business continuity plans, which could have a
material adverse effect on our business.

Risks related to our common stock

The price of our common stock may be volatile and fluctuate substantially.

The market price of shares of our common stock could be subject to wide fluctuations in response to many risk factors listed in this section, and others
beyond our control, including:

•
•
•
•
•
•
•
•
•

•
•
•
•
•
•
•
•
•
•
•
•

results of preclinical and clinical trials of our product candidates, including COSELA, rintodestrant and lerociclib;
results of clinical trials of our competitors’ products;
regulatory actions with respect to our products or our competitors’ products;
actual or anticipated fluctuations in our financial condition and operating results;
publication of research reports by securities analysts about us or our competitors or our industry;
our failure or the failure of our competitors to meet analysts’ projections or guidance that we or our competitors may give to the market;
developments or disputes concerning patent applications, issued patents or other proprietary rights;
additions and departures of key personnel;
strategic decisions by us or our competitors, such as acquisitions, collaborations, divestitures, spin-offs, joint ventures, strategic investments
or changes in business strategy;
the passage of legislation or other regulatory developments in the United States and other countries affecting us or our industry;
fluctuations in the valuation of companies perceived by investors to be comparable to us;
sales of our common stock by us, our insiders or our other stockholders;
speculation in the press or investment community;
announcement or expectation of additional financing efforts;
changes in accounting principles;
changes in the structure of healthcare payment systems;
terrorist acts, acts of war or periods of widespread civil unrest;
natural disasters and other calamities;
changes in market conditions for pharmaceutical and biopharmaceutical stocks;
changes in general market, industry and economic conditions; and
the other factors described in this “Risk Factors” section.

In  addition,  the  stock  market  has  experienced  significant  volatility,  particularly  with  respect  to  pharmaceutical,  biotechnology  and  other  life  sciences
company stocks. The volatility of pharmaceutical, biotechnology and other life sciences company stocks often does not relate to the operating performance
of  the  companies  represented  by  the  stock.  In  the  past,  securities  class  action  litigation  has  often  been  initiated  against  companies  following  periods  of
volatility in their stock price. This type of litigation could result in substantial costs and divert our management’s attention and resources, and could also
require us to make substantial payments to satisfy judgments or to settle litigation.

Provisions in our corporate charter documents and under Delaware law could make an acquisition of our company, which may be beneficial to our
stockholders, more difficult and may prevent attempts by our stockholders to replace or remove our current management.

Provisions  in  our  certificate  of  incorporation  and  our  by-laws  may  discourage,  delay  or  prevent  a  merger,  acquisition  or  other  change  in  control  of  our
company  that  stockholders  may  consider  favorable,  including  transactions  in  which  you  might  otherwise  receive  a  premium  for  your  shares.  These
provisions could also limit the price that investors might be willing to pay in the future for shares of our common stock, thereby depressing the market price
of our common stock. In addition, because our board of directors is responsible for appointing the members of our management team, these provisions may
frustrate or prevent any attempts by our stockholders to replace or remove our current management by making it more difficult for stockholders to replace
members of our board of directors. Although we believe these provisions collectively provide for an opportunity to obtain greater value for stockholders by
requiring potential acquirers to negotiate with our board of directors, they would apply even if an offer rejected by our board of directors were considered
beneficial by some stockholders. Among other things, these provisions:

63

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
•
•
•
•

•

•
•

•

establish a classified board of directors such that only one of three classes of directors is elected each year;
allow the authorized number of our directors to be changed only by resolution of our board of directors;
limit the manner in which stockholders can remove directors from our board of directors;
establish advance notice requirements for stockholder proposals that can be acted on at stockholder meetings and nominations to our board of
directors;
require that stockholder actions must be effected at a duly called stockholder meeting and prohibit actions by our stockholders by written
consent;
limit who may call stockholder meetings;
authorize our board of directors to issue preferred stock without stockholder approval, which could be used to institute a “poison pill” that
would work to dilute the stock ownership of a potential hostile acquirer, effectively preventing acquisitions that have not been approved by
our board of directors; and
require the approval of the holders of at least two-thirds of the voting power of all of the then-outstanding shares of capital stock that would
be entitled to vote generally in the election of directors to amend or repeal specified provisions of our certificate of incorporation or by-laws.

Moreover, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, which
prohibits a person who owns in excess of 15% of our outstanding voting stock from merging or combining with us for a period of three years after the date
of  the  transaction  in  which  the  person  acquired  in  excess  of  15%  of  our  outstanding  voting  stock,  unless  the  merger  or  combination  is  approved  in  a
prescribed manner.

Our certificate of incorporation includes a forum selection clause, which could limit our stockholders’ ability to obtain a favorable judicial forum for
disputes with us.

Our certificate of incorporation provides that, unless we consent in writing to the selection of an alternative forum, the Court of Chancery of the State of
Delaware will be the sole and exclusive forum for any stockholder to bring (i) any derivative action or proceeding brought on our behalf, (ii) any action
asserting a claim of breach of a fiduciary duty owed by any of our directors, officers, or employees to us or to our stockholders, (iii) any action asserting a
claim arising pursuant to any provision of the Delaware General Corporation Law or our certificate of incorporation or by-laws, or (iv) any action asserting
a claim governed by the internal affairs doctrine; in all cases subject to the court’s having personal jurisdiction over the indispensable parties named as
defendants. Any person or entity purchasing or otherwise acquiring any interest in shares of our capital stock is deemed to have notice of and consented to
the foregoing provisions. This forum selection provision in our certificate of incorporation may limit our stockholders’ ability to obtain a favorable judicial
forum for disputes with us. It is also possible that, notwithstanding the forum selection clause included in our certificate of incorporation, a court could rule
that such a provision is inapplicable or unenforceable.

We have incurred and will continue to incur increased costs as a result of operating as a public company, and our management will be required to
devote substantial time to new compliance initiatives and corporate governance practices.

As a public company, we have incurred and will continue to incur significant legal, accounting and other expenses. The Sarbanes-Oxley Act of 2002, the
Dodd-Frank Wall Street Reform and Consumer Protection Act, the listing requirements of The Nasdaq Stock Market and other applicable securities rules
and regulations impose various requirements on public companies, including establishment and maintenance of effective disclosure and financial controls
and corporate governance practices. Our management and other personnel devote a substantial amount of time to these compliance initiatives. Moreover,
these rules and regulations increase our legal and financial compliance costs and make some activities more time-consuming and costly. For example, these
rules and regulations make it more difficult and more expensive for us to obtain director and officer liability insurance.

We do not anticipate paying any cash dividends on our capital stock in the foreseeable future.

We have never declared or paid cash dividends on our capital stock. We currently intend to retain all of our future earnings, if any, to finance the growth
and  development  of  our  business.  In  addition,  the  terms  of  any  future  debt  agreements  may  preclude  us  from  paying  dividends.  As  a  result,  capital
appreciation, if any, of our common stock will be the sole source of gain for our stockholders for the foreseeable future.

Item 1B. Unresolved Staff Comments.

None.

64

 
 
 
 
 
 
 
 
 
Item 2. Properties.

Our corporate headquarters is located in Research Triangle Park, North Carolina, where we lease approximately 60,000 square feet of laboratory and office
space.  This lease on our corporate headquarters commenced in September 2019 and expires on September 30, 2027. None of our leases are material to our
business operations. We believe our facility is adequate for our current needs and that suitable additional or substitute space would be available if needed.

Item 3. Legal Proceedings.

We are not currently subject to any material pending legal proceedings.

Item 4. Mine Safety Disclosures.

Not applicable.

65

PART II

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

Market Information

Our common stock has traded on the Nasdaq Global Select Market under the symbol “GTHX” since May 17, 2017. Prior to that time, there was no public
market for our common stock.

Holders

As of February 22, 2021, there were approximately 10 stockholders of record of our common stock.  Holders of record are defined as those stockholders
whose shares are registered in their names in our stock records and do not include beneficial owners of common stock whose shares are held in the names
of brokers, dealers or clearing agencies.  

66

 
 
 
Stock Performance Graph
This performance graph is not “soliciting material,” is not deemed filed with the SEC and is not to be incorporated by reference in any filing by us under
the  Securities  Act  of  1933  or  the  Securities  Exchange  Act  of  1934,  as  amended,  whether  made  before  or  after  the  date  hereof  and  irrespective  of  any
general  incorporation  language  in  any  such  filing.  The  stock  price  performance  shown  on  the  graph  is  not  necessarily  indicative  of  future  price
performance.

Comparison of Cumulative Total Return

Among G1 Therapeutics, Inc., the Nasdaq Biotechnology Index and the Nasdaq Composite Index

The above graph measures the change in a $100 investment in our common stock from May 17, 2017 (the date our common stock commenced trading on the
Nasdaq  Global  Select  Market)  through  December  31,  2020.  Our  relative  performance  is  then  compared  with  the  Nasdaq  Composite  Index  and  the  Nasdaq
Biotechnology Index.

Recent Sales of Unregistered Securities

None.

Equity Compensation Plans

67

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

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

We did not purchase any of our equity securities during the fiscal year 2020.

68

 
 
Item 6. Selected Financial Data.

You should read the following selected financial data together with the information under the caption “Management’s Discussion and Analysis of Financial
Condition and Results of Operations” and our audited financial statements and accompanying notes included in this Annual Report. We have derived the
statement of operations data for the years ended December 31, 2020, 2019 and 2018 and the balance sheet data as of and December 31, 2020 and 2019
from our audited financial statements included elsewhere in this Annual Report. The statement of operations data for the year ended December 31, 2017
and 2016 and the balance sheet data as of December 31, 2018, 2017 and 2016 is derived from audited financial statements that are not included in this
Annual Report.  Our historical results are not necessarily indicative of results that should be expected in the future.

Statements of Operations Data:
License revenue
Operating expenses:

Research and development
General and administrative

Total operating expenses
Loss from operations
Other income (expenses):

Interest income
Interest expense
Other income (expenses)
Change in fair value of warrant liability

Total other income (expense), net
Loss before income taxes
Income tax expense
Net loss
Accretion of redeemable convertible preferred stock(1)
Net loss attributable to common shareholders
Basic and diluted net loss per share(2)
Weighted average shares outstanding, basic and diluted(2)

Balance Sheet Data:
Cash, cash equivalents and short-term investments
Working capital(3)
Total assets
Redeemable convertible preferred stock
Total stockholders' equity/(deficit)

2020

2019

Year Ended December 31,
2018

(in thousands except share and per share amounts)

2017

2016

  $

45,285    $

— 

 $

—    $

—  $

— 

73,271   
68,490   
141,761   
(96,476)  

952   
(1,778)  
(542)  
—   
(1,368)  
(97,844)  
1,410   
(99,254)  
—   
(99,254)  

89,002 
40,039 
129,041   
(129,041)  

6,579   
—   
15   
—   
6,594   
(122,447)  
—   
(122,447)  
—   
(122,447)  

70,683   
18,603   
89,286   
(89,286)  

3,998   
—   
—   
—   
3,998   
(85,288)  
—   
(85,288)  
—   
(85,288)  

53,881   
7,087   
60,968   
(60,968)  

25,161 
5,230 
30,391 
(30,391)

891   
—   
(3)  
(41)  
847   
(60,121)  
—   
(60,121)  
(4,757)  
(64,878)  
(3.57) $

200 
— 
(18)
(82)
100 
(30,291)
— 
(30,291)
(4,405)
(34,696)
(23.33)
  18,197,970    1,486,986

  $

(2.62)   $

(3.27)   $

(2.56)   $

  37,878,026   

  37,499,256   

  33,316,719   

2020

2019

Year Ended December 31,
2018

(in thousands)

2017

2016

  $

 $

207,306 
 $
192,949     
228,552   
—   
177,351   

269,208 
251,234 
284,831 
— 
255,527 

369,290    $
357,771   
371,270   
—   
358,820   

103,812  $
92,957   
105,171   
—   
93,388   

47,305 
42,276 
48,212 
107,580 
(64,993)

(1) Subsequent to our initial public offering in May 2017, our redeemable convertible preferred stock was converted to common stock and no further accretion has

been recorded.

(2) See Note 11 to our financial statements appearing elsewhere in this Annual Report for further details on the calculation of basic and diluted net loss per share

applicable to common stockholders.

(3) We define working capital as current assets less current liabilities.

69

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

You  should  read  the  following  discussion  and  analysis  of  our  financial  condition  and  results  of  operations  together  with  our  financial  statements  and
related notes included elsewhere in this Annual Report. This discussion contains forward-looking statements that involve risk and uncertainties, such as
statements of our plans, objectives, expectations and intentions. As a result of many factors, including those factors set forth in the “Risk Factors” section
of this Annual Report, our actual results could differ materially from the results described in or implied by the forward-looking statements contained in the
following discussion and analysis.

Overview

We are a commercial-stage biopharmaceutical company focused on the development and commercialization of novel small molecule therapeutics for the
treatment of patients with cancer. Our first approved product by the U.S. Food and Drug Administration (FDA), COSELA™ (trilaciclib), is the first and
only therapy indicated to proactively help protect bone marrow from the damage of chemotherapy and is the first innovation in managing myeloprotection
in decades. COSELA was developed from a technology platform that targets key cellular pathways including transient arrest of the cell cycle at G1, prior to
the beginning of DNA replication. Our therapies are designed to improve outcomes for patients across multiple oncology indications.

We  shall  use  “COSELA”  when  we  are  referring  our  FDA  approved  drug  and  “trilaciclib”  when  we  are  referring  to  our  development  of  COSELA  for
additional indications.  

Product Pipeline

We  are  advancing  two  clinical  stage  programs.  Trilaciclib  is  a  first-in-class  therapy  designed  to  help  protect  against  chemotherapy-induced
myelosuppression. Trilaciclib helps protect HSPCs in bone marrow by transiently inhibiting CDK4/6 leading to a temporary arrest of susceptible host cells
during  chemotherapy  in  ES-SCLC  patients.    This  reduces  the  duration  and  severity  of  neutropenia  and  other  myelosuppressive  consequences  of
chemotherapy.  In  addition,  trilaciclib  activates  and  enhances  the  immune  system  response  driving  increased  anti-tumor  efficacy,  which  we  continue  to
explore in clinical trials.

On February 12, 2021, COSELA was approved by the FDA to decrease the incidence of chemotherapy-induced myelosuppression in adult patients treated
with  a  platinum/etoposide-containing  regimen  or  topotecan-containing  regimen  for  extensive  stage  small  cell  lung  cancer  (ES-SCLC).  We  are  also
exploring potential use of trilaciclib in a variety of tumors, including colorectal cancer (CRC), triple negative breast cancer (TNBC), neoadjuvant breast
cancer, non-small cell lung cancer (NSCLC), and bladder cancer.

Rintodestrant  is  an  oral  selective  estrogen  receptor  degrader  (SERD)  for  the  treatment  of  ER+  breast  cancer.  In  2020,  we  out-licensed  global  rights  to
lerociclib,  an  internally  discovered  and  differentiated  oral  CDK4/6  inhibitor  designed  to  enable  more  effective  combination  treatment  strategies  across
multiple oncology indications.  We also have intellectual property focused on cyclin-dependent kinase targets.

70

 
 
 
 
  
 
 
 
 
 
   
G1 Therapeutics Product Pipeline

Candidate

Indication

Status

Development & Commercialization Rights
(all indications)

Extensive-stage small cell lung
cancer (ES-SCLC)

 COSELA (trilaciclib) 
Approved by FDA

Colorectal cancer (CRC)

 Registrational trial
(initiated in 2020)

1L/2L Triple negative breast
cancer (TNBC)

 Registrational trial
(initiating in 1H 2021)

2L/3L Non-small cell lung cancer
(NSCLC)

 Phase 2 trial
(initiating in 1H 2021)

trilaciclib

1L Bladder cancer

Neoadjuvant breast cancer
(I-SPY 2 TRIAL™)

rintodestrant

ER+, HER2- breast cancer

Phase 2 trial
(initiating in 1H 2021)
Phase 2 trial
(initiated in 2020)
 Phase 2a
(initiated in
2019)            

lerociclib

Multiple

Clinical Stage

G1 Therapeutics owns all global development and
commercial rights across all indications, with the
exception of Greater China (Simcere)

G1 - Global

EQRx:  Global and Japan (ex. Asia Pacific)

Genor Biopharma:  Asia Pacific (ex. Japan)

Trilaciclib helps protect HSPCs in bone marrow by transiently inhibiting CDK4/6 leading to a temporary arrest of susceptible host cells during
chemotherapy  in  ES-SCLC  patients.    This  reduces  the  duration  and  severity  of  neutropenia  and  other  myelosuppressive  consequences  of
chemotherapy. In addition, trilaciclib has demonstrated immune system response enhancement which we are exploring in clinical trials to show
increased anti-tumor efficacy.

Trilaciclib,  a  transient  IV  CDK4/6  inhibitor,  is  a  novel  therapeutic  approach  which  is  given  before  chemotherapy  that  temporarily  blocks  progression
through  the  cell  cycle.  This  provides  two  benefits.  First,  it  proactively  helps  protect  HSPCs  in  bone  marrow  leading  to  preservation  of  neutrophils,
erythrocytes, and platelets (called myeloprotection) which reduces the occurrences and severity of neutropenia and other myelosuppressive consequences
of chemotherapy. This myeloprotection benefit has been conclusively proven in double-blind placebo-controlled clinical trials in extensive-stage small cell
lung  cancer.  Second,  trilaciclib  activates  and  enhances  the  immune  system  response  driving  increased  anti-tumor  efficacy,  which  we  are  exploring  in
clinical  trials.  Our  randomized  clinical  trials  have  demonstrated  that  trilaciclib  can  provide  myeloprotection  benefits  and  has  the  potential  to  improve
survival as a result of its anti-tumor efficacy benefit.

Chemotherapy is an effective and important weapon against cancer. However, chemotherapy does not differentiate between healthy cells and cancer cells
and kills both, including important stem cells in the bone marrow (hematopoietic stem and progenitor cells, or HSPCs) that produce white blood cells, red
blood cells and platelets, and immune cells. This chemotherapy-induced bone marrow damage is known as myelosuppression. When white blood cells, red
blood cells and platelets become depleted, chemotherapy patients are at increased risk of infection, experience anemia and fatigue, and are at increased risk
of bleeding. Myelosuppression often requires the administration of rescue interventions such as growth factors and blood or platelet transfusions and may
also result in chemotherapy dose delays and reductions. Immune cell damage may decrease the ability of the immune system to fight the cancer, as well as
infection.

In  preclinical  studies,  administration  of  trilaciclib  prior  to  chemotherapy  has  been  shown  to  induce  transient  cell-cycle  arrest  of  HSPCs,  helps  protect
HSPCs from chemotherapy-induced damage, preserve bone marrow and immune system function, helps protect against bone marrow exhaustion, improve
complete  blood  counts  (CBC)  recovery,  prevent  myeloid  skewing  and  consequent  lymphopenia,  and  enhance  T-cell  effector  function  in  the  tumor
microenvironment.

71

 
 
 
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Following evaluation of trilaciclib in a Phase 1 trial in healthy volunteers, we initiated two Phase 1b/2 trials in patients with ES-SCLC; one in a first line
setting (in combination with carboplatin/etoposide) and the other in a second-/third-line setting (in combination with topotecan). Enrollment in both trials
has been completed and preliminary data from the open label Phase 1b segment were reported in 2016 and 2017. In the Phase 1b segments of these two
trials, we treated 51 patients with over 250 cycles of trilaciclib and chemotherapy. There were no episodes of febrile neutropenia – one of the most common
adverse consequences of these chemotherapy regimens. Further, there were no drug-related serious adverse events reported during the Phase 1b segments
of these two trials. There were some adverse events reported involving fatigue and cytopenias, but those adverse events were less severe and less frequent
than those generally reported in trials involving the use of chemotherapy alone.

Based  on  these  encouraging  preliminary  data,  we  advanced  both  SCLC  trials  into  the  randomized,  placebo-controlled,  double-blind  Phase  2  segment.
Enrollment  in  the  first-line  SCLC  Phase  2  trial  was  completed  in  the  second  quarter  of  2017  and  positive  multilineage  myeloprotection  results  were
reported in March 2018, with additional data reported at the European Society for Medical Oncology (ESMO) 2018 Congress and published in Annals of
Oncology  in  2019.  Enrollment  in  the  second-/third-line  SCLC  Phase  2  trial  was  completed  in  the  second  quarter  of  2018,  with  positive  multilineage
myeloprotection data reported in the fourth quarter of 2018 and full data presented at an oral session at the American Society of Clinical Oncology (ASCO)
2019 Annual Meeting. These data were also published in Advances in Therapy (Hart et al.) in 2020.

Our third trial in SCLC was initiated in 2017, as part of our non-exclusive collaboration with Genentech, with the goal of exploring the use of trilaciclib in
combination  with  chemotherapy  and  a  checkpoint  inhibitor.   The  trial  was  a  randomized,  placebo-controlled,  double-blind  Phase  2  trial  of  trilaciclib  in
combination with Tecentriq® (atezolizumab)/carboplatin/etoposide in first-line SCLC patients. We completed enrollment in February 2018 and reported
positive multilineage myeloprotection data in November 2018. Additional data, including myeloprotection and anti-tumor efficacy findings (as measured
by overall survival, or “OS”), were reported at the 2019 ESMO Congress. and featured in a concurrent publication in The Lancet Oncology

All  three  SCLC  trials  demonstrated  that  trilaciclib,  when  added  to  standard  of  care  chemotherapy  or  chemotherapy/checkpoint  inhibitor  regimens,
decreases  the  incidence  of  clinically  significant  chemotherapy-induced  myelosuppression.  The  FDA  granted  Breakthrough  Therapy  Designation  for
trilaciclib based on myeloprotection data from our three randomized, double-blind, placebo-controlled SCLC clinical trials, as well as safety data collected
across all completed and ongoing clinical trials. The Breakthrough Therapy program is designed to expedite development and review of drugs intended for
serious  or  life-threatening  conditions.  In  August  2020,  the  FDA  accepted  our  New  Drug  Application  (NDA)  for  trilaciclib  in  SCLC,  granting  Priority
Review with a Prescription Drug User Fee Act (PDUFA) action date of February 15, 2021. Discussions with European regulatory authorities have indicated
existing  data  is  sufficient  to  support  a  Marketing  Authorization  Application  (MAA)  to  the  European  Medicines  Agency  (EMA)  for  trilaciclib  for
myeloprotection in SCLC, which we plan to pursue in collaboration with a partner.

On February 12, 2021, COSELA was approved by the FDA to decrease the incidence of chemotherapy-induced myelosuppression in adult patients when
administered prior to a platinum/etoposide-containing regimen or topotecan-containing regimen for extensive-stage small cell lung cancer (ES-SCLC). We
expect COSELA to be commercially available through G1’s specialty pharmacy partner network in early March. COSELA is administered intravenously as
a 30-minute infusion completed within 4 hours prior to the start of chemotherapy and is the first and only FDA-approved therapy that helps proactively
deliver multilineage myeloprotection to patients with extensive-stage small cell lung cancer being treated with chemotherapy. The approval of COSELA is
based on data from three randomized, placebo-controlled trials that showed patients receiving COSELA prior to chemotherapy had clinically meaningful
and statistically significant reduction in the duration and severity of neutropenia, reduction of red blood cell transfusions, as well as improvements in other
myeloprotection measures, compared to patients receiving chemotherapy without COSELA.

In  June  2020,  we  entered  into  a  three-year  co-promotion  agreement  for  COSELA™  (trilaciclib)  in  the  United  States  and  Puerto  Rico  with  Boehringer
Ingelheim. The agreement is limited to support for SCLC. Under the terms of the agreement, we will book revenue in the United States and Puerto Rico
and retain development and commercialization rights to trilaciclib. We will lead marketing, market access and medical engagement initiatives; Boehringer
Ingelheim will lead sales force engagements.

In August 2020, we entered into an exclusive license agreement with Nanjing Simcere Dongyuan Pharmaceutical Co., Ltd (“Simcere”) for development
and commercialization rights for trilaciclib in all indications in Greater China (mainland China, Hong Kong, Macau and Taiwan). Under the terms of the
agreement, we received an upfront payment of $14.0 million and will be eligible to receive up to $156.0 million in development and commercial milestone
payments. Simcere will also pay us tiered low double-digit royalties on annual net sales of trilaciclib in Greater China. As part of the agreement, Simcere
will  participate  in  global  clinical  trials  of  trilaciclib  and  the  companies  will  be  responsible  for  all  development  and  commercialization  costs  in  their
respective territories.

We  are  also  executing  on  our  tumor-agnostic  strategy  to  evaluate  the  potential  benefits  of  trilaciclib  to  patients  with  other  tumors  that  are  treated  with
chemotherapy. We have two on-going trials: a pivotal 1L colorectal cancer (CRC) study and a Phase 2 neoadjuvant breast cancer (I-SPY 2). We intend to
initiate a pivotal study in mTNBC (including 1L and 2L patients) and have two additional Phase 2 studies: a 2L/3L non-small cell lung cancer (NSCLC)
trial in post-checkpoint patients and a 1L bladder cancer trial with chemotherapy and a checkpoint inhibitor. These studies across treatment settings and
tumor types will evaluate trilaciclib’s dual benefits in both multi-lineage myeloprotection and anti-tumor efficacy.

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Pivotal 1L Colorectal Cancer (CRC)

We enrolled the first patient in a randomized, placebo-controlled registrational trial of trilaciclib in colorectal cancer (CRC) in the first quarter of 2021.
CRC is a large indication commonly treated with 5-FU-based chemotherapy. We have extensive preclinical research demonstrating myeloprotection and
potential efficacy in 5-FU-based regimens with trilaciclib. Our ongoing 1L CRC trial is with FOLFOXIRI, which is the most efficacious chemo regimen in
this  tumor  but  is  also  highly  myelosuppressive.  By  reducing  the  toxicity  of  FOLFOXIRI,  we  believe  we  will  significantly  expand  its  use  in  CRC  and
potentially improve overall survival.

1L/2L Metastatic Triple-Negative Breast Cancer (mTNBC)

In 2017, we initiated a randomized Phase 2 trial of trilaciclib in patients with first-/second-/third-line metastatic triple-negative breast cancer (mTNBC)
receiving gemcitabine and carboplatin.  Enrollment was completed in the second quarter of 2018. At the 2018 SABCS, we presented preliminary trilaciclib
data demonstrating improvement in progression-free survival (PFS). In September 2019, we presented updated data demonstrating significant improvement
in OS (preliminary). Though the trial did not meet the primary myeloprotection endpoints, patients receiving trilaciclib were able to receive approximately
50%  more  cycles  of  chemotherapy,  without  additional  hematological  toxicity.  These  data  were  presented  at  the  2019  ESMO  Congress  and  were
concurrently published in The Lancet Oncology. Updated safety and efficacy data from this trial were presented at the 2020 SABCS. Data included that
compared  to  GC  alone  (Group  1),  OS  was  improved  in  both  trilaciclib  arms  (Groups  2  and  3)  (Group  2:  HR=0.31,  p=0.0016;  Group  3:  HR=0.40,
p=0.0004). Median OS was 12.6 months in Group 1, not reached for Group 2, and 17.8 months in Group 3. The median OS for Groups 2 and 3 combined
was  19.8  months  (HR=0.37,  p<0.0001).  OS  findings  in  patients  receiving  trilaciclib  were  consistent  with  previously-reported  data  from  this  trial.  The
median OS for GC alone (Group 1, 12.6 months) was consistent with the previous trial findings and historical data. Patients with both PD-L1-positive and
PD-L1-negative  tumors  treated  with  trilaciclib  and  GC  demonstrated  improvement  in  OS  compared  to  patients  receiving  GC  alone,  with  the  PD-L1-
positive subset achieving statistically significant improvement. Further, data from T cell clonality analyses suggest that administering trilaciclib prior to
chemotherapy enhanced immune system function. These compelling Phase 2 data supported the potential effectiveness of trilaciclib in mTNBC. We expect
to  initiate  a  randomized,  placebo-controlled  registrational  trial  in  in  1L  patients  and  2L  post-checkpoint  patients  with  mTNBC  in  the  first  half  of  2021.
TNBC is a difficult and aggressive tumor to treat with many new therapies only effective in certain subpopulations

Phase 2 Neoadjuvant Breast Cancer (I-SPY 2)

In January 2020, we announced that trilaciclib will be included in a new randomized, investigational treatment arm for the ongoing I-SPY 2 TRIAL™ for
neoadjuvant  treatment  of  locally  advanced  breast  cancer.  The  trial,  initiated  in  the  second  quarter  of  2020  and  run  by  the  non-profit  Quantum  Leap
Healthcare Collaborative, is designed to rapidly screen promising experimental treatments and identify those most effective in specific patient subgroups
based  on  molecular  characteristics  (biomarker  signatures).  This  trial  will  generate  myeloprotection  and  anti-tumor  efficacy  data  across  the  different
subtypes of breast cancer.

2L/3L Non-Small Cell Lung Cancer (NSCLC)

Evaluating  trilaciclib  in  2L/3L  NSCLC  (post-checkpoint  setting)  will  provide  us  with  meaningful  data  in  an  area  of  high  unmet  with  a  large  patient
population.  NSCLC  is  a  known  immunogenic  tumor  which  may  provide  trilaciclib  an  opportunity  to  increase  anti-tumor  efficacy  through  its  distinct
mechanism even after checkpoint inhibitors have failed. There is also a high complementary commercial fit with our initial SCLC indication.

1L Bladder Cancer

We intend to initiate a 1L bladder cancer trial in the first half of 2021 with chemotherapy and a checkpoint inhibitor. There is a strong rationale to evaluate
trilaciclib in 1L bladder cancer: (1) bladder is a known immunogenic tumor proven to be responsive to chemotherapy; (2) the most common chemotherapy
regimen used in 1L bladder is gemcitabine and platinum, which is similar to the chemotherapy regimen in our TNBC study (gemcitabine and carboplatin)
where we showed significant OS benefits; and (3) we have observed synergistic benefits combining trilaciclib with checkpoints.

Rintodestrant: Our differentiated oral SERD

Rintodestrant  is  an  oral  SERD  which  we  plan  to  initially  develop  as  a  monotherapy  and  in  combination  with  CDK4/6  inhibitors,  initially  Ibrance®
(palbociclib), for the treatment of ER+, HER2- breast cancer. Based on compelling preclinical efficacy and safety data, we filed an Investigational New
Drug application (IND) with the FDA in the fourth quarter of 2017. In 2018, we initiated a Phase 1b (dose escalation/dose expansion) clinical trial in ER+,
HER2- breast cancer. Preliminary data from the Phase 1 portion of

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this trial were presented at the 2019 ESMO Congress, showing that rintodestrant was well tolerated and demonstrated evidence of anti-tumor activity in
heavily pre-treated patients. The mature monotherapy data were presented at the 2020 SABCS, confirming the safety and efficacy results of the preliminary
analysis. Based  on  those results we advanced  an  800  mg  dose  of  rintodestrant  into a  40-patient  Phase  2  combination  trial  with  palbociclib,  a  CDK4/6
inhibitor. We completed enrollment of patients in this trial in October 2020 and expect to disclose initial safety and efficacy data in the second quarter of
2021. If the Phase 2 data are promising, we will seek to partner rintodestrant. Palbociclib is being provided under a non-exclusive clinical supply agreement
that we signed with Pfizer in February 2020.

Lerociclib: Our differentiated CDK4/6 inhibitor for patients with CDK4/6-dependent tumors

Lerociclib is a differentiated oral CDK4/6 inhibitor being developed for use in combination with other targeted therapies in multiple oncology indications.
In 2020, we entered into separate, exclusive agreements with EQRx, Inc. (rights for U.S., Europe, Japan and all markets outside Asia-Pacific) and Genor
Biopharma Co. Inc. (rights for Asia-Pacific, excluding Japan) for the development and commercialization of lerociclib in all indications. Combined, these
agreements  provided  $26.0  million  in  upfront  payments,  along  with  sales-based  royalties,  and  the  opportunity  for  up  to  $330.0  million  in  potential
milestone payments. EQRx, Inc. and Genor Biopharma Co. Inc. are responsible for all costs related to the development and commercialization of lerociclib
in their respective territories.

Coronavirus (COVID-19) impact on operations

We  have  implemented  business  continuity  plans  to  address  the  COVID-19  pandemic  and  minimize  disruptions  to  ongoing  operations.  Enrollment  of
patients in current and future clinical trials may be impacted by COVID-19. We do not anticipate significant supply chain delays or shortages as a result of
the COVID-19 pandemic. COVID-19 travel limitations and government-mandated work-from-home or shelter-in-place orders, may reduce the number of
in-person meetings with prescribers and fewer patient visits with physicians, potentially resulting in fewer new prescriptions.

We  established  a  COVID-19  response  team  which  continually  monitors  the  impact  of  COVID-19  on  our  operations.    The  COVID-19  response  team
manages our workplace protocols that governs our employees use of our office. To mitigate the impact of COVID-19 on our business, we put in place the
following safety measures for our employees, patients, healthcare professionals, and suppliers to limit exposure: we substantially restricted travel, supplied
personal protective equipment to employees, limited access to our headquarters and asked most of our staff to work remotely. In addition, we transitioned
most  of  our  employees  to  working  remotely  and  added  bandwidth  and  VPN  capacity  to  our  infrastructure.  We  will  continue  to  monitor  the  impact  of
COVID-19 on our operations and report to our Board regularly on the progress of our response to the COVID-19 outbreak.

Financial Overview

Since our inception in 2008, we have devoted substantially all of our resources to synthesizing, acquiring, testing and developing our product candidates,
including  conducting  preclinical  studies  and  clinical  trials  and  providing  general  and  administrative  support  for  these  operations  as  well  as  securing
intellectual  property  protection  for  our  product  candidates.  As  of  February  2021,  COSELA  is  our  only  product  approved  for  sale.  COSELA  has  not
generated any revenues from product sales in 2020. We expect COSELA to start generating revenue in the first quarter of 2021. We recorded $45.3 million
of license revenue for the year ended December 31, 2020, and $0 million of revenue for the years ended December 31, 2019. To date, we have financed our
operations primarily through the sale of equity securities, our loan agreement with Hercules Capital, Inc., and licensing arrangements. Under our licensing
arrangements, we are eligible to receive certain development and sales-based milestones. Our ability to earn these milestones and the timing of achieving
these milestones is primarily dependent upon the outcome of the licensee’s activities and is uncertain at this time.

As of December 31, 2020, we had cash and cash equivalents of $207.3 million. Since inception, we have incurred net losses. Our net losses were
$99.3 million, $122.4 million and $85.3 million for the years ended December 31, 2020, 2019 and 2018, respectively. As of December 31, 2020, we had an
accumulated deficit of $436.1 million. Substantially all of our net losses have resulted from costs incurred in connection with our research and development
programs, our commercial launch preparations, and from general and administrative expenses associated with our operations. We expect to continue to
incur significant expenses and increasing operating losses. We expect our research and development, commercial activities, and general and administrative
expenses will continue to increase in connection with our ongoing and future activities as we:

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continue development of our product candidates, including initiating additional clinical trials of trilaciclib and rintodestrant;

identify and develop new product candidates;

seek marketing approvals for our product candidates that successfully complete clinical trials;

grow  our  sales,  marketing  and  distribution  infrastructure  to  commercialize  COSELA  and  any  future  products  for  which  we  may  obtain
marketing approval;

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•

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achieve market acceptance of our product candidates in the medical community and with third-party payors;

maintain, expand and protect our intellectual property portfolio;

hire additional personnel;

enter into collaboration arrangements, if any, for the development of our product candidates or in-license other products and technologies;

add operational, financial and management information systems and personnel, including personnel to support our product development and
planned future commercialization efforts; and

continue to incur increased costs as a result of operating as a public company.

License agreement with the University of Illinois - Rintodestrant

In November 2016, and as amended in March 2017, we entered into a license agreement with the Board of Trustees of the University of Illinois, or the
University. Pursuant to the license agreement, as amended, the University licensed patent rights to the Company, with rights to sublicense, to make, have
made, use, import, sell and offer for sale SERDs, including rintodestrant, covered by certain patent rights owned by the University. The rights licensed to us
are  exclusive,  worldwide,  non-transferable  rights,  for  all  fields  of  use.  Under  the  terms  of  the  agreement,  as  amended,  we  paid  a  one-time  only,  non-
refundable  upfront  fee  of  $0.5  million,  and  are  required  to  pay  the  University  low  single-digit  royalties  on  all  net  sales  of  products  and  a  share  of  any
sublicensing  revenues.  We  are  also  obligated  to  pay  annual  maintenance  fees,  which  are  fully  creditable  against  any  royalty  payments  made  by  us.  In
addition, the Company may also be required to pay the University milestone payments of up to an aggregate of $2.6 million related to the initiation and
execution of clinical trials, with payments made for the initial dosing for each phase of the clinical trials, as well as the first commercial sale of a product in
another  country.  To  date,  the  Company  has  made  milestone  payments  totaling  $0.6  million,  of  which  $0  was  incurred  during  2020.  We  will  also  be
responsible for any future patent prosecution costs that may arise. See “Business—Intellectual Property—Exclusive License for rintodestrant.”

Components of our Results of Operations

Revenues

To date, we have not generated any revenues from the sale of products. Our revenues have been derived from our license agreements.

We entered into an exclusive license agreement with Nanjing Simcere Dongyuan Pharmaceutical Co., Ltd (“Simcere”) in August 2020 and granted them
the  rights  to  develop  and  commercialize  trilaciclib  in  Greater  China  (mainland  China,  Hong  Kong,  Macau,  and  Taiwan)  (the  “Simcere  Territory”).  We
received an upfront payment of $14.0 million (less applicable withholding taxes of $1.4 million) in September 2020. This was recognized in December
2020 when we transferred the license and related technology know-how. We have the potential to receive $156.0 million upon reaching development and
commercial milestones, and receive tiered low double-digit royalties on annual net sales of trilaciclib in the Simcere Territory.

We  entered  into  an  exclusive  license  agreement  with  EQRx,  Inc.  (“EQRx”)  in  July  2020  and  granted  them  the  rights  to  develop  and  commercialize
lerociclib in the U.S., Europe, Japan and all other global markets, excluding the Asia-Pacific region (except Japan) (the “EQRx Territory”). We received an
upfront  payment  of  $20.0  million  in  August  2020.  This  was  recognized  as  revenue  in  September  2020  when  we  transferred  the  license  and  related
technology and know-how. We have the potential to receive $290.0 upon reaching development and commercial milestones, and receive tiered royalties
ranging from mid-single digits to mid-teens based on annual net sales of lerociclib in the EQRx Territory.

We  entered  into  an  exclusive  license  agreement  with  Genor  Biopharma  Co.  Inc.  (“Genor”)  in  June  2020  and  granted  them  the  rights  to  develop  and
commercialize  lerociclib  in  the  Asia-Pacific  Region,  excluding  Japan  (the  “Genor  Territory”).  We  received  an  upfront  payment  of  $6.0  million  in  July
2020. This was recognized as revenue in September 2020 when we transferred the license and related technology and know-how. We have the potential to
receive $40.0 million upon reaching development and commercial milestones, and receive tiered royalties ranging from high single to low double-digits
based on annual net sales of lerociclib in the Genor Territory.

We  entered  into  an  exclusive  license  agreement  with  ARC  Therapeutics,  LLC  (“ARC”)  in  May  2020.    The  Company  granted  ARC  an  exclusive,
worldwide,  royalty-bearing  license  of  its  CDK2  inhibitor  compounds  in  exchange  for  an  upfront  payment  and  equity  in  ARC  with  a  total  value  of
approximately $2.1 million, which resulted in the recognition of related party revenue. The Company is entitled to receive additional milestone payments
and sales-based royalties, and has right of first negotiation to re-acquire these assets.

Operating expenses

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We  classify  our  operating  expenses  into  two  categories:  research  and  development  and  general  and  administrative  expenses.  Personnel  costs,  including
salaries,  benefits,  bonuses  and  stock-based  compensation  expense,  comprise  a  significant  component  of  each  of  these  expense  categories.  We  allocate
expenses associated with personnel costs based on the nature of work associated with these resources.

Research and Development Expenses

The largest component of our total operating expenses since inception has been research and development activities, including the preclinical and clinical
development of our product candidates.

Research and development costs are expensed as incurred. Our research and development expense primarily consists of:

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salaries and personnel-related costs, including bonuses, benefits and any stock-based compensation, for our scientific personnel performing or
managing out-sourced research and development activities;

costs incurred under agreements with contract research organizations and investigative sites that conduct preclinical studies and clinical trials;

costs related to manufacturing pharmaceutical active ingredients and drug products for preclinical studies and clinical trials;

costs related to upfront and milestone payments under in-licensing agreements;

fees paid to consultants and other third parties who support our product candidate development;

other costs incurred in seeking regulatory approval of our product candidates; and

allocated facility-related costs and overhead.

The successful development of our product candidates is highly uncertain. Product candidates in later stages of clinical development generally have higher
development  costs  than  those  in  earlier  stages  of  clinical  development,  primarily  due  to  the  increased  size  and  duration  of  later-stage  clinical  trials.
Accordingly,  we  expect  research  and  development  costs  to  increase  significantly  for  the  foreseeable  future  as  programs  progress.  However,  we  do  not
believe that it is possible at this time to accurately project total program-specific expenses through commercialization. We are also unable to predict when,
if ever, material net cash inflows will commence from our product candidates to offset these expenses. Our expenditures on current and future preclinical
and clinical development programs are subject to numerous uncertainties in timing and cost to completion. The duration, costs and timing of clinical trials
and development of our product candidates will depend on a variety of factors including:

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the scope, rate of progress, and expenses of our ongoing as well as any additional clinical trials and other research and development activities;

future clinical trial results;

achievement of milestones requiring payments under our in-licensing agreements;

uncertainties in clinical trial enrollment rates or drop-out or discontinuation rates of patients;

potential additional studies requested by regulatory agencies;

significant and changing government regulation; and

the timing and receipt of any regulatory approvals.

We  track  research  and  development  expenses  on  a  program-by-program  basis  only  for  clinical-stage  product  candidates.  Preclinical  research  and
development expenses and chemical manufacturing research and development expenses are not assigned or allocated to individual development programs.
In 2020, we had two clinical-stage product candidates, trilaciclib and rintodestrant.

General and administrative expenses

General and administrative expenses consist of personnel costs, allocated expenses and other expenses for outside professional services, including legal,
audit  and  accounting  services.  Personnel  costs  consist  of  salaries,  bonuses,  benefits  and  stock-based  compensation.  Other  general  and  administrative
expenses  include  facility-related  costs  not  otherwise  allocated  to  research  and  development  expense,  professional  fees,  pre-commercialization  costs,
expenses  associated  with  obtaining  and  maintaining  patents  and  costs  of  our  information  systems.  We  anticipate  that  our  general  and  administrative
expenses will continue to increase in the future as we increase our headcount to support our continued research and development and commercialization of
COSELA.

We expect to continue to incur additional general and administrative expenses in 2020 as we support continued research and development activities and
support our operations in a public company environment, including expenses related to compliance with

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the rules and regulations of the SEC and Nasdaq, additional insurance expenses, and expenses related to investor relations activities, commercialization
costs and other administration and professional services.

Total other income (expense), net

Total  other  income  (expense),  net  consists  of  interest  income  earned  on  cash  and  cash  equivalents  and  interest  expenses  incurred  under  our  loan  and
security agreement with Hercules.

Income taxes

To  date,  we  have  not  been  required  to  pay  U.S.  federal  or  state  income  taxes  because  we  have  not  generated  taxable  income.  Income  tax  expense
recognized in 2020 related to the foreign withholding taxes incurred as a result of the upfront payment received from the Simcere license agreement entered
into during the quarter.

Critical accounting policies and significant judgments and estimates

This  discussion  and  analysis  of  our  financial  condition  and  results  of  operations  is  based  on  our  financial  statements,  which  have  been  prepared  in
accordance with U.S. generally accepted accounting principles. The preparation of our financial statements requires us to make estimates and assumptions
that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well
as the reported expenses incurred during the reporting periods. Our estimates are based on our historical experience and on various other factors that we
believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities
that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

While our significant accounting policies are more fully described in the notes to our financial statements appearing elsewhere in this Annual Report, we
believe that the following accounting policies are critical to the process of making significant judgments and estimates in the preparation of our financial
statements and understanding and evaluating our reported financial results.

Revenue Recognition

For elements of those arrangements that we determine should be accounted for under ASC 606, Revenue from Contracts with Customers (“ASC 606”), we
assess which activities in our license or collaboration agreements are performance obligations that should be accounted for separately and determine the
transaction  price  of  the  arrangement,  which  includes  the  assessment  of  the  probability  of  achievement  of  future  milestones  and  other  potential
consideration.  For  arrangements  that  include  multiple  performance  obligations,  such  as  granting  a  license  or  performing  manufacturing  or  research  and
development  activities,  we  allocate  the  transaction  price  based  on  the  relative  standalone  selling  price  and  recognize  revenue  that  is  allocated  to  the
respective performance obligation when (or as) control is transferred to the customer and the performance obligation is satisfied. Accordingly, we develop
assumptions  that  require  judgment  to  determine  the  standalone  selling  price  for  each  performance  obligation  identified  in  the  contract.  These  key
assumptions may include revenue forecasts, clinical development timelines and costs, discount rates and probabilities of clinical and regulatory success.

Licenses of Intellectual Property

If a license to the Company’s intellectual property is determined to be distinct from the other performance obligations identified in the arrangement, the
Company recognizes revenue allocated to the license when the license is transferred to the customer and the customer is able to use and benefit from the
license. For licenses that are bundled with other promises, the Company utilizes judgment to assess the nature of the combined performance obligation to
determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring
progress for purposes of recognizing revenue associated with the bundled performance obligation. The Company evaluates the measure of progress each
reporting period and, if necessary, adjusts the measure of progress and related revenue recognition.

Milestone Payments

At the inception of each arrangement that includes developmental and regulatory milestone payments, the Company evaluates whether the achievement of
each milestone specifically relates to the Company’s efforts to satisfy a performance obligation or transfer a distinct good or service within a performance
obligation. The Company evaluates each milestone to determine when and how much of the milestone to include in the transaction price. The Company
first estimates the amount of the milestone payment that the Company could receive using either the expected value or the most likely amount approach.
The Company primarily uses the most likely

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amount approach as that approach is generally most predictive for milestone payments with a binary outcome. Then, the Company considers whether any
portion of that estimated amount is subject to the variable consideration constraint (that is, whether it is probable that a significant reversal of cumulative
revenue would not occur upon resolution of the uncertainty). The Company updates the estimate of variable consideration included in the transaction price
at each reporting date which includes updating the assessment of the likely amount of consideration and the application of the constraint to reflect current
facts and circumstances.

Royalties

For  arrangements  that  include  sales-based  royalties,  including  milestone  payments  based  on  the  level  of  sales,  and  the  license  is  deemed  to  be  the
predominant  item  to  which  the  royalties  relate,  the  Company  will  recognize  revenue  at  the  later  of  (i)  when  the  related  sales  occur,  or  (ii)  when  the
performance  obligation  to  which  some  or  all  of  the  royalty  has  been  allocated  has  been  satisfied  (or  partially  satisfied).  To  date,  the  Company  has  not
recognized any revenue related to sales-based royalties or milestone payments based on the level of sales.

Accrued research and development expenses

As part of the process of preparing our financial statements, we estimate and accrue research and development expenses, including external clinical study
costs associated with clinical trial activities. The process involves reviewing contracts and purchase orders, identifying services that have been provided 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 the actual costs.

Costs for clinical trial activities are recognized based on an evaluation of our vendors’ progress towards completion of specific tasks, using data such as
patient enrollment, clinical site activations or information provided to us by our vendors regarding their actual costs incurred. Payments for these activities
are  based  on  the  terms  of  individual  contracts  and  payment  timing  may  differ  significantly  from  the  period  in  which  the  services  were  performed.  We
determine  accrual  estimates  through  reports  from  and  discussions  with  applicable  personnel  and  outside  service  providers  as  to  the  progress  or  state  of
completion of trials, or the services completed. Our estimates of accrued external clinical study costs as of each balance sheet date are based on the facts
and circumstances known at the time.

Although  we  do  not  expect  our  estimates  to  be  materially  different  from  the  amounts  actually  incurred,  if  our  estimates  of  the  status  and  timing  of  the
services performed differ from the actual status and timing of services performed, we may report amounts that are too high or too low in any particular
period. To date, there have been no material differences from our estimates to the amount actually incurred.

Stock-based compensation

We account for stock-based compensation awards in accordance with Financial Accounting Standards Board (FASB) Accounting Standards Codification
(ASC)  Topic  718,  Compensation—Stock  Compensation,  or  ASC  718.  ASC  718  requires  all  stock-based  payments  to  employees,  including  grants  of
employee stock options, to be recognized in the statement of operations based on their fair values. Our stock-based compensation awards have historically
consisted of stock options.

We recognize compensation costs related to stock options granted to employees based on the estimated fair value of the awards on the date of grant. We
estimate the grant date fair value, and the resulting stock-based compensation expense, using the Black-Scholes option-pricing model. The grant date fair
value of the stock-based awards is generally recognized on a straight-line basis over the requisite service period, which is generally the vesting period of
the respective awards. We account for forfeitures as they occur, rather than estimating forfeitures as of the date of grant.

We recorded non-cash stock-based compensation expense of $18.8 million, $16.4 million and $10.2 million for the years ended December 31, 2020, 2019
and 2018, respectively.

78

We  calculate  the  fair  value  of  stock  options  using  the  Black-Scholes  option-pricing  model.  The  Black-Scholes  option-pricing  model  requires  the  use  of
subjective assumptions, including the expected volatility of our common stock, the assumed dividend yield, the expected term of our stock options, the
risk-free interest rate for a period that approximates the expected term of our stock options, and the fair value of the underlying common stock on the date
of grant. In applying these assumptions, we considered the following factors:

•

•

•

•

•

we do not have sufficient history to estimate the volatility of our common stock; we calculate expected volatility based on reported data for
selected similar publicly traded companies for which the historical information is available as we do not have sufficient history to estimate
volatility  using  only  our  common  stock;  in  2019,  we  began  incorporating  our  historical  stock  price  in  conjunction  with  selected  similar
publicly  traded  companies;  we  plan  to  continue  to  use  the  guideline  peer  group  volatility  information  until  the  historical  volatility  of  our
common stock is sufficient to measure expected volatility for future option grants;

the assumed dividend yield of zero is based on our expectation of not paying dividends for the foreseeable future;

our estimates of expected term used in the Black-Scholes option-pricing model were based on the estimated time from the grant date to the
date of exercise;

we determine the risk-free interest rate by reference to implied yields available from U.S. Treasury securities with a remaining term equal to
the expected life assumed at the date of grant; and

we account for forfeitures as they occur, rather than estimating forfeitures as of an award’s grant date.

See “Note 9 – Stock-Based compensation” to the accompanying audited financial statements included in Item 15 of this Annual Report for the weighted
average assumptions used in the Black-Scholes option-pricing model for awards granted in the years ended December 31, 2020, 2019 and 2018.

Prior to our initial public offering, the fair value of our common shares underlying our stock options was estimated on each grant date by our board of
directors.  In  order  to  determine  the  fair  value  of  our  common  shares  underlying  granted  stock  options,  our  board  of  directors  considered,  among  other
things,  timely  valuations  of  our  common  shares  prepared  by  an  unrelated  third-party  valuation  firm  in  accordance  with  the  guidance  provided  by  the
American Institute of Certified Public Accountants Practice Guide, Valuation of Privately-Held-Company Equity Securities Issued as Compensation.

Given the absence of a public trading market for our common shares, our board of directors exercised reasonable judgment and considered a number of
objective and subjective factors to determine the best estimate of the fair value of our common shares, including (1) our business, financial condition and
results of operations, including related industry trends affecting our operations; (2) our forecasted operating performance and projected future cash flows;
(3) the illiquid nature of our common shares; (4) liquidation preferences and other rights and privileges of our common shares; (5) market multiples of our
most comparable public peers and (6) market conditions affecting our industry. Since our IPO, our board of directors has determined the fair value of each
common share underlying share-based awards based on the closing price of our common shares as reported by the Nasdaq on the date of grant.

Income taxes

We recognize deferred income taxes for temporary differences between the basis of assets and liabilities for financial statement and income tax purposes.
We  periodically  evaluate  the  positive  and  negative  evidence  bearing  upon  the  ability  to  realize  our  deferred  tax  assets.  Based  upon  the  weight  of  the
available evidence, which includes historical operating performance, reported cumulative net losses since inception and difficulty in accurately forecasting
our future results, we maintained a full valuation allowance on the net deferred tax assets for all periods presented. We intend to maintain a full valuation
allowance on the U.S. deferred tax assets for the foreseeable future until sufficient positive evidence exists to support reversal of the valuation allowance.

At December 31, 2020, the Company has federal net operating loss carryforwards (“NOLs”) of approximately $373.1 million, which are available to offset
future  taxable  income.  Of  the  $373.1  million  available,  $95.4  million  will  begin  to  expire  in  2029.  The  remaining  $277.6  million  has  an  indefinite
carryforward period. Under the Tax Cuts and Jobs Act (“Tax Act”), federal NOLs arising after December 31, 2017 may be carried forward indefinitely.
However, for NOLs arising after December 31, 2017, NOL carryforwards will be limited to 80% of taxable income. Our NOLs generated in 2017 and in
prior years will not be subject to the 80% limitation under the Tax Act. In addition, we had state net operating loss carryforwards totaling approximately
$379.8  million,  which  are  available  to  offset  future  state  taxable  income.  State  net  operating  losses  begin  to  expire  in  2024.  Because  we  had  incurred
cumulative  net  operating  losses  since  inception,  all  tax  years  remain  open  to  examination  by  U.S.  federal  and  state  income  tax  authorities.  As  of
December 31, 2020, we also had federal research and development (R&D) credit carryforwards of approximately $14.0 million available to offset future
income tax which begin to expire in 2035.

79

 
 
 
 
 
 
 
 
 
Our ability to utilize net operating losses and research and development credit carryforwards may be substantially limited due to ownership changes that
may have occurred or that could occur in the future, as required by Section 382 of the Internal Revenue Code of 1986, as amended (the Code), as well as
similar  state  provisions.  These  ownership  changes  may  limit  the  amount  of  NOL  and  R&D  credit  carryforwards  that  can  be  utilized  annually  to  offset
future taxable income and tax, respectively. In general, an “ownership change,” as defined by Section 382 of the Code, results from a transaction or series
of  transactions  over  a  three-year  period  resulting  in  an  ownership  change  of  more  than  50  percent  of  the  outstanding  stock  of  a  company  by  certain
stockholders or public groups.

In  April  2019,  we  completed  an  evaluation  study  as  to  whether  an  “ownership  change”  had  occurred  and  determined  that  the  limitation  would  be
approximately $8.0 million on federal net operating loss carryforwards, $1.2 million on state net operating loss carryforwards, and $0.1 million on R&D
tax credit carryforwards. The carryforward amounts reported above have already been reduced for these limitations. We continue to maintain a valuation
allowance  on  the  remaining  NOLs  as  we  believe  that  it  is  more  likely  than  not  that  all  of  the  deferred  tax  asset  associated  with  the  NOLs  will  not  be
realized regardless of whether an “ownership change” has occurred.

Results of operations

Comparison of the year ended December 31, 2020 and December 31, 2019

License revenue
Operating Expenses:

Research and Development
General and Administrative

Total operating expenses
Loss from Operations
Other income (expense):
Interest income
Interest expense
Other income (expense)

Total other income (expense), net
Loss before income taxes
Income tax expense
Net Loss

Year Ended December 31,
2019
2020
(in thousands)

Change
$

  $

45,285    $

—    $

45,285 

73,271     
68,490     
141,761     
(96,476)    

952     
(1,778)    
(542)    
(1,368)    
(97,844)    
1,410     
(99,254)   $

89,002     
40,039     
129,041     
(129,041)    

6,579     
—     
15     
6,594     
(122,447)    
—     
(122,447)   $

(15,731)
28,451 
12,720 
32,565 

(5,627)
(1,778)
(557)
(7,962)
24,603 
1,410 
23,193

  $

Revenue

Revenue  was  $45.3  million  and  $0  for  the  years  ended  December  31,  2020  and  December  31,  2019  respectively.  The  revenue  for  the  year  ended
December 31, 2020 was primarily related to $42.1 million in revenue recognized from the Simcere, EQRx, Genor and ARC upfront payments under the
respective license agreements following the transfer of the related technology and know-how which occurred during the period. We also recognized $1.3
million for clinical trial costs and $0.4 million in patent costs to be reimbursed by EQRx, Genor, and Simcere. Additionally, we recognized $1.3 million in
revenue for existing inventory transfers to EQRx and Genor which occurred during the fourth quarter of 2020.

80

 
 
 
 
 
   
 
 
 
   
   
 
 
 
 
   
      
      
  
   
   
   
   
   
      
      
  
   
   
   
   
   
   
 
 
Research and development

Research  and  development  expenses  were  $73.3  million  for  the  year  ended  December  31,  2020  as  compared  to  $89.0  million  for  the  year  ended
December  31,  2019.  The  decrease  of  $15.7  million,  or  -18%,  was  primarily  due  to  a  decrease  of  $10.2  million  in  our  clinical  program  costs  due  to  a
decrease in spend for ongoing clinical trials of $5.7 million and decrease of $5.9 million related to a regulatory filing expense of $2.9 million incurred in
2019 and reimbursed in 2020, partially offset by an increase in personnel costs of $1.4 million. The decrease of $1.3 million in costs for manufacturing of
active pharmaceutical ingredient and drug product to support our clinical trials, as well as a decrease in research and development expenses was also due to
a  decrease  of  $4.2  million  in  external  costs  related  to  discovery  and  preclinical  development.  The  following  table  summarizes  our  research  and
development expenses allocated to trilaciclib, rintodestrant, lerociclib, and unallocated research and development expenses for the periods indicated:

Clinical Expenses—trilaciclib
Clinical Expenses—rintodestrant
Clinical Expenses—lerociclib
Chemical Manufacturing and Development
Discovery and Pre-clinical Expenses
Total Research and Development Expenses

Year Ended December 31,
2019
2020

(in thousands)

  $

  $

34,292    $
7,005     
6,092     
22,040     
3,842     
73,271    $

36,196 
8,334 
13,041 
23,364 
8,067 
89,002

General and administrative

General  and  administrative  expenses  were  $68.5  million  for  the  year  ended  December  31,  2020  as  compared  to  $40.0  million  for  the  year  ended
December 31, 2019. The increase of $28.5 million, or 71%, was due to an increase of $6.8 million in personnel related costs due to increased headcount, of
which $1.7 million related to non-cash stock compensation expense, an increase of $15.8 million in pre-commercialization activities, an increase of $2.0
million in medical affairs costs related to trilaciclib, an increase of $0.8 million in information technology systems and related expenses, and an increase of
$3.1 million professional services, insurance, and other administrative costs.

Total other income (expense), net

Total other income, net was $(1.4) million for the year ended December 31, 2020 as compared to $6.6 million for the year ended December 31, 2019. The
decrease in income of $8.0 million was primarily driven by a lower balance of money market funds due to cash used in operating activities and changes in
interest rates during the year ended December 31, 2020 as compared to the year ended December 31, 2019, interest expense on loan payable, and loss on
disposal of fixed assets.

Income tax expense

Income tax expense was $1.4 million for the year ended December 31, 2020 as compared to $0 for the year ended December 31, 2019. The increase was
related to the foreign withholding taxes incurred as a result of the upfront payment received from the Simcere license agreement entered into in 2020.

81

 
 
 
 
 
 
   
 
 
 
 
   
   
   
   
 
 
 
Comparison of the year ended December 31, 2019 and December 31, 2018

License revenue
Operating Expenses:

Research and Development
General and Administrative

Total operating expenses
Loss from Operations
Other income (expense):
Interest income
Interest expense
Other income (expense)

Total other income (expense), net
Loss before income taxes
Income tax expense
Net Loss

Year Ended December 31,
2018
2019
(in thousands)

Change
$

  $

—    $

—    $

— 

89,002     
40,039     
129,041     
(129,041)    

6,579     
—     
15     
6,594     
(122,447)    
—     
(122,447)   $

70,683     
18,603     
89,286     
(89,286)    

3,998     
—     
—     
3,998     
(85,288)    
—     
(85,288)   $

18,319 
21,436 
39,755 
(39,755)

2,581 
— 
15 
2,596 
(37,159)
— 
(37,159)

  $

Revenue

Revenue was $0 for the years ended December 31, 2019 and December 31, 2018.

Research and development

Research  and  development  expenses  were  $89.0  million  for  the  year  ended  December  31,  2019  as  compared  to  $70.7  million  for  the  year  ended
December 31, 2018. The increase of $18.3 million, or 26%, was primarily due to an increase of $11.8 million in our clinical program costs which reflects
increased  costs  in  our  ongoing  clinical  trials,  increased  headcount-related  expenses  to  support  these  trials,  and  costs  associated  with  seeking  regulatory
approval  for  our  product  candidates.  The  increase  in  research  and  development  expenses  was  also  due  to  an  increase  of  $6.0  million  in  costs  for
manufacturing of active pharmaceutical ingredient and drug product to support our clinical trials, as well as an increase of $0.5 million in external costs
related  to  discovery  and  preclinical  development.  The  following  table  summarizes  our  research  and  development  expenses  allocated  to  trilaciclib,
rintodestrant, lerociclib and unallocated research and development expenses for the periods indicated:

Clinical Expenses—trilaciclib
Clinical Expenses—rintodestrant
Clinical Expenses—lerociclib
Chemical Manufacturing and Development
Discovery and Pre-clinical Expenses
Total Research and Development Expenses

Year Ended December 31,
2018
2019

(in thousands)

  $

  $

36,196    $
8,334     
13,041     
23,364     
8,067     
89,002    $

35,116 
2,251 
8,383 
17,323 
7,610 
70,683

General and administrative

General  and  administrative  expenses  were  $40.0  million  for  the  year  ended  December  31,  2019  as  compared  to  $18.6  million  for  the  year  ended
December 31, 2018. The increase of $21.4 million, or 115%, was due to an increase of $8.1 million in personnel related costs due to increased headcount,
of which $5.2 million related to non-cash stock compensation expense, an increase of $5.5 million in pre-commercialization activities, an increase of $3.1
million in medical affairs costs related to trilaciclib, an increase of $1.6 million in information technology systems and related expenses, and an increase of
$3.1 million professional services, insurance, and other administrative costs.

82

 
 
 
 
   
 
 
 
   
   
 
 
 
 
   
      
      
  
   
   
   
   
   
      
      
  
   
   
   
   
   
   
 
 
 
 
 
 
 
   
 
 
 
 
   
   
   
   
 
 
Total other income (expense), net

Total other income, net was $6.6 million for the year ended December 31, 2019 as compared to $4.0 million for the year ended December 31, 2018. The
increase of $2.6 million was due to additional interest income earned on a higher balance of cash and cash equivalents during the year ended December 31,
2019 as compared to the year ended December 31, 2018.

Liquidity and Capital Resources   

We have incurred cumulative losses and negative cash flows from operations since our inception in 2008. We incurred net losses of $99.3 million for the
year ended December 31, 2020, $122.4 million for the year ended December 31, 2019, and $85.3 million for the year ended December 31, 2018. As of
December 31, 2020, we had an accumulated deficit of $436.1 million. 

As of December 31, 2020, we had cash and cash equivalents of $207.3 million. To date, we have funded our operations primarily through proceeds from
our initial public offering, our follow-on stock offerings, our debt agreement with Hercules Capital, and proceeds from our license agreements. Under our
licensing arrangements, we are eligible to receive certain development and sales-based milestones. Our ability to earn these milestones and the timing of
achieving these milestones is primarily dependent upon the outcome of the licensee’s activities and are uncertain at this time.

Follow-on offering

On  March  12,  2018,  we  closed  an  underwritten  public  offering  of  3,910,000  shares  of  common  stock  at  a  public  offering  price  of  $29.50  per  share,
including 510,000 shares of common stock issued upon exercise by the underwriters of their option to purchase additional shares. The gross proceeds from
the  offering  were  $115.3  million  and  net  proceeds  were  $107.9  million,  after  deducting  underwriting  discounts  and  commissions  and  other  offering
expenses payable by us.

At-the-market offering

On June 15, 2018, we entered into a sales agreement for “at the market offerings” with Cowen and Company, LLC (“Cowen”), which allows us to issue
and sell shares of common stock pursuant to a shelf registration statement for total gross sales proceeds of up to $125.0 million from time to time through
Cowen, acting as our agent. Between June 18, 2018 and August 2, 2018, we sold 752,008 shares of common stock pursuant to this agreement resulting in
$36.1 million in net proceeds, realizing $12.1 million in the second quarter and the remaining $24.0 million by August 2, 2018.

Between January 14, 2021 and February 9, 2021, we sold 3,513,027 shares of common stock pursuant to this agreement resulting in $86.4 million in net
proceeds. As of February 9, 2021, we have used the entirety of the remaining availability under the sales agreement with Cowen.

Follow-on offering

On September 21, 2018, we closed an underwritten public offering of 3,450,000 shares of common stock at a public offering price of $60.00 per share,
including  450,000  shares  of  common  stock  issued  upon  exercise  by  the  underwriters  of  their  option  to  purchase  additional  shares,  pursuant  to  a  shelf
registration  statement.  The  gross  proceeds  from  the  offering  were  $207.0  million  and  net  proceeds  were  $194.9  million,  after  deducting  underwriting
discounts and commissions and other offering expenses payable by us.

Loan and Security Agreement with Hercules

On May 29, 2020, we entered into a loan and security agreement with Hercules Capital, Inc. (“Hercules”) under which Hercules has agreed to lend us up to
$100.0 million, to be made available in a series of tranches, subject to specified conditions. We borrowed $20.0 million at loan closing. The term of the
loan is approximately 48 months, with a maturity date of June 1, 2024. No principal payments are due during an interest-only period, commencing on the
initial borrowing date and continuing through June 1, 2022. The interest only period may be extended through January 1, 2023 upon satisfaction of certain
milestones. Following the interest only period, we will repay the principal balance and interest of the advances in equal monthly installments through June
1, 2024.

Cash flows

83

 
 
 
The following table summarizes our cash flows for the periods indicated:

Net cash used in operating activities
Net cash provided/used in investing activities
Net cash provided by financing activities
Net change in cash, cash equivalents and restricted cash

Net cash used in operating activities

2020

Year Ended December 31,
2019
(in thousands)

2018

  $

  $

(83,742)   $
152   
21,688   
(61,902)   $

(99,571)   $
(2,716)  
2,705   
(99,582)   $

(74,307)
(709)
340,494 
265,478

During  the  year  ended  December  31,  2020,  net  cash  used  in  operating  activities  was  $83.7  million,  which  consisted  of  a  net  loss  of  $99.3  million,  a
decrease in net operating assets and liabilities of $4.0 million, and a decrease in non-cash equity interest of $0.9 million, partially offset by non-cash stock
compensation  expense  of  $18.8  million,  $0.6  million  of  depreciation  expense,  $0.6  million  in  amortization  of  debt  issuance  costs,  $0.3  million  loss  on
disposal of fixed assets, and $0.2 million of non-cash interest expense.

During the year ended December 31, 2019, net cash used in operating activities was $99.6 million, which consisted of a net loss of $122.4 million, partially
offset by non-cash stock compensation expense of $16.4 million, working capital adjustments of $6.0 million and $0.4 million of depreciation expense.

During the year ended December 31, 2018, net cash used in operating activities was $74.3 million, which consisted of a net loss of $85.3 million, partially
offset by non-cash stock compensation expense of $10.2 million, working capital adjustments of $0.6 million and $0.2 million of depreciation expense.

Net cash used in investing activities

Net cash provided by investing activities was $0.2 million for the year ended December 31, 2020, which represented proceeds from the disposal of property
and equipment.

Net cash used in investing activities was $2.7 million and $0.7 million for the years ended December 31, 2019 and 2018, respectively. Net cash used in
investing activities represented purchases of property and equipment, primarily associated with laboratory equipment and leasehold improvements for new
office space.

Net cash provided by financing activities

During the year ended December 31, 2020, net cash provided by financing activities was $21.7 million, which consisted of $2.3 million in net proceeds
from the exercise of stock options and $20.0 million in proceed from our loan agreement with Hercules, partially offset by $0.6 million in payments related
to debt issuances costs.

During the year ended December 31, 2019, net cash provided by financing activities was $2.7 million in net proceeds from the exercise of stock options.

During the year ended December 31, 2018, net cash provided by financing activities was $340.5 million, consisting of $338.7 million of net proceeds from
our  public  offerings,  after  deducting  cash  paid  for  underwriting  discounts  and  commissions  and  other  expenses,  and  $1.8  million  of  proceeds  from  the
exercise of stock options.

Operating capital requirements and plan of operations

To date, we have not generated any revenue from product sales. We anticipate that we will continue to generate losses for the foreseeable future, and we
expect  the  losses  to  increase  as  we  continue  the  development  of  and  seek  regulatory  approvals  for  our  product  candidates,  and  begin  to  commercialize
COSELA.  We  are  subject  to  all  of  the  risks  inherent  in  the  development  of  new  products,  and  we  may  encounter  unforeseen  expenses,  difficulties,
complications, delays and other unknown factors that may adversely affect our business. We expect to incur additional costs associated with operating as a
public company and we anticipate that we will need substantial additional funding in connection with our continuing operations.

We believe that our existing cash and cash equivalents will be sufficient to fund our projected cash needs for greater than 12 months following the filing of
this Annual Report.

84

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

•

•

•

•

•

•

•

•

•

•

•

the scope, progress, results and costs of nonclinical development, laboratory testing and clinical trials for our product candidates;

the scope, prioritization and number of our research and development programs;

the costs, timing and outcome of regulatory review of our product candidates;

the extent to which we enter into non-exclusive, jointly funded clinical research collaboration arrangements, if any, for the development of
our product candidates in combination with other companies’ products;

our ability to establish such collaborative co-development arrangements on favorable terms, if at all;

the achievement of milestones or occurrence of other developments that trigger payments under our license agreement and any collaboration
agreements into which we enter;

the extent to which we are obligated to reimburse, or entitled to reimbursement of, clinical trial costs under future collaboration agreements, if
any;

the extent to which we acquire or in-license product candidates and technologies, such as rintodestrant, and the terms of such in-licenses;

the costs of future commercialization activities, including product sales, marketing, manufacturing and distribution, for any of our product
candidates for which we receive marketing approval;

revenue, if any, received from commercial sales of our product candidates; and

the  costs  of  preparing,  filing  and  prosecuting  patent  applications,  maintaining  and  enforcing  our  intellectual  property  rights  and  defending
intellectual property-related claims.

Until  such  time,  if  ever,  as  we  can  generate  substantial  revenues,  we  expect  to  finance  our  cash  needs  through  a  combination  of  equity  offerings,  debt
financings, other third-party funding, marketing and distribution arrangements and other collaborations, strategic alliances and licensing arrangements. We do
not have any committed external source of funds except for amounts included under our licensing arrangements and the loan agreement with Hercules. To the
extent that we raise additional capital through the sale of equity or convertible debt securities, our stockholders’ ownership interest will be diluted, and the
terms of these securities may include liquidation or other preferences that adversely affect your rights as a common stockholder. Debt financing, if available,
may  involve  agreements  that  include  covenants  limiting  or  restricting  our  ability  to  take  specific  actions,  such  as  incurring  additional  debt,  making  capital
expenditures or declaring dividends. If we raise funds through additional collaborations, strategic alliances or licensing arrangements with third parties, we may
have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates or to grant licenses on terms that may
not be favorable to us. If we are unable to raise additional funds when needed, we may be required to delay, limit, reduce or terminate our product development
or future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves.

Contractual Obligations, Commitments and Contingencies

Our principal commitments consist of obligations under our clinical trial commitments, consulting fees, operating lease commitments and long-term debt
obligations. The following table summarizes these contractual obligations as of December 31, 2020:

Total

Less than
1 Year

Payments due by period
1 to 3
Years
(in thousands)

3 to 5
Years

More Than
5 Years

Contractual Obligations:
Operating lease obligations(1)
Long-term debt obligation, including interest and end of term
charge (2)

Total contractual obligations(3)

  $

  $
  $

11,529    $

1,657    $

3,337    $

3,404    $

3,131 

27,125     
38,654    $

1,957     
3,614    $

17,530 
20,867    $

7,638 
11,042    $

- 
3,131

85

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
      
      
      
      
  
  
  
 
 
(1)

(2)

Represents  future  minimum  lease  payments  under  the  non-cancelable  lease  for  our  headquarters  in  Research  Triangle  Park,  NC  and  our  former
headquarters in Research Triangle Park, NC. The lease for the new office space commenced in September 2019 for approximately 60,000 square
feet of laboratory space and office space in Research Triangle Park, NC. The lease will expire in September 2027, with the Company having the
option to renew for an additional 5 years. The lease for our former headquarters will expire in December 2022. The minimum lease payments above
do not include any related common area maintenance charges or real estate taxes.

Amounts in the table reflect payments due for our loan agreement under an arrangement with Hercules for $20.0 million. The amounts in the table
above reflect interest-only payments through June 1, 2022 with payments on principal beginning thereafter. For purposes of the table above, interest
payments were calculated using an annual interest rate of 9.65%, which was the interest rate in effect as of December 31, 2020. Additionally, the
table  above  includes  a  payment  due  upon  maturity  of  the  loan  of  $2.1  million.  See  Note  7  of  the  financial  statements  for  further  discussion  of
the Hercules loan agreement.

(3) We  enter  into  agreements  in  the  normal  course  of  business  with  contract  research  organizations  (CROs)  for  clinical  trials  and  with  vendors  for
preclinical studies and other services and products for operating purposes which are cancelable at any time by us, generally upon 30-60 days prior
written notice. As of December 31, 2020, we have several on-going clinical studies in various stages. Under agreements with various CROs and
clinical study sites, we incur expenses related to clinical studies of our product candidates and potential other clinical candidates. The timing and
amounts of these disbursements are contingent upon the services rendered or as expenses are incurred by the CROs or clinical trial sites. Therefore,
we cannot estimate the potential timing and amount of these payments and they have been excluded from the table above. Also, the above amounts
exclude potential payments to be made under our license agreement for rintodestrant with the University of Illinois that are based on the progress of
rintodestrant, as these payments are not determinable.

(4)

(5)

Effective  on  October  22,  2019,  we  entered  into  a  Product  Agreement  with  Patheon  Manufacturing  Services,  LLC  as  issued  under  the  Master
Manufacturing Services Agreement dated August 27, 2019 to manufacture and supply trilaciclib for commercial production. The initial term of the
agreement is effective until December 31, 2024. If the annual volume of product ordered does not meet a specified amount, a true-up payment to this
minimum will be due at the end of the applicable year. This minimum purchase amount was excluded from the table above as the conditions of the
committed amount make it undeterminable at this time.

The Company entered into a three-year co-promotion agreement in the United States and Puerto Rico with Boehringer Ingelheim Pharmaceuticals,
Inc., or BI, in June 2020. Under the terms of the agreement, we will record revenue in the United States and Puerto Rico and retain development and
commercialization  rights  to  trilaciclib.  We  will  lead  marketing,  market  access  and  medical  engagement  initiatives;  BI  will  lead  sales  force
engagements. The agreement is limited to promotional support in the U.S. for the initial extensive stage small cell lung cancer indication.

Off-Balance Sheet Arrangements

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

Recent Accounting Pronouncements

See Note 2 to our financial statements included elsewhere in this report regarding the impact of certain recent accounting pronouncements on our financial
statements.

86

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

We  are  exposed  to  market  risks  in  the  ordinary  course  of  our  business.  These  risks  primarily  include  interest  rate  sensitivities.  We  had  cash  and  cash
equivalents  of  $207.3  million  as  of  December  31,  2020,  which  consists  of  deposits  in  banks,  including  checking  accounts,  money  market  accounts  and
certificates of deposit. Such interest-earning instruments carry a degree of interest rate risk; however, historical fluctuations in interest income have not
been significant.

We also have exposure to market risk on our loan agreement with Hercules Capital, Inc. Our loan agreement accrues interest from its date of issue at a
variable  interest  rate  equal  to  the  greater  of  either  (i)  (a)  the  prime  rate  as  reported  in  The  Wall  Street  Journal,  plus  (b)  6.40%,  and  (ii)  9.65%.  As  of
December 31, 2020, $20.0 million was outstanding under the loan agreement with Hercules.

We are not currently exposed to significant market risk related to changes in foreign currency exchange rates; however, our operations may be subject to
fluctuations in foreign currency exchange rates in the future.

Inflation generally affects us by increasing our cost of labor. We do not believe that inflation had a material effect on our business financial condition or
results of operations three and twelve months ended December 31, 2020.

Item 8. Financial Statements and Supplementary Data.

The financial statements of G1 Therapeutics, Inc. are provided in Part IV, Item 15 in this Annual Report.

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

Not Applicable.

87

 
 
Item 9A. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in the reports that we file or submit
under the Securities and Exchange Act of 1934 is (i) recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and
forms and (ii) accumulated and communicated to our management, including our principal executive officer and principal financial officer, to allow timely
decisions regarding required disclosure.

As  of  December  31,  2020,  our  management,  with  the  participation  of  our  principal  executive  officer  and  principal  financial  officer,  evaluated  the
effectiveness  of  our  disclosure  controls  and  procedures  (as  defined  in  Rules  13a-15(e)  and  15d-15(e)  under  the  Securities  Exchange  Act  of  1934).  Our
management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving
their  objectives,  and  management  necessarily  applies  its  judgement  in  evaluating  the  cost-benefit  relationship  of  possible  controls  and  procedures.    Our
principal executive officer and principal financial officer have concluded based upon the evaluation described above that, as of December 31, 2020, our
disclosure controls and procedures were effective at the reasonable assurance level.

Changes in Internal Controls Over Financial Reporting

There were no changes in our internal control over financial reporting that occurred during 2020 that have materially affected, or are reasonably likely to
materially affect, our internal control over financial reporting.

Management’s Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act
Rule 13a-15(f) and 15d-15(f). Under the supervision and with the participation of our management, including our Chief Executive Officer and our Chief
Financial  Officer,  we  conducted  an  evaluation  of  the  effectiveness  of  our  internal  control  over  financial  reporting  based  on  the  framework  in  Internal
Control—Integrated  Framework  (2013)  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission  (COSO).  Based  on  our
evaluation under the framework in Internal Control—Integrated Framework, our management concluded that our internal control over financial reporting
was effective as of December 31, 2020.

The  effectiveness  of  our  internal  control  over  financial  reporting  as  of  December  31,  2020,  has  been  audited  by  PricewaterhouseCoopers  LLP,  an
independent registered public accounting firm, as stated in their report, which is included in this Annual Report on Form 10-K.

Item 9B. Other Information.

None.

88

 
PART III

Item 10. Directors, Executive Officers and Corporate Governance.

The  information  required  by  this  item  is  incorporated  herein  by  reference  from  the  Company’s  Proxy  Statement  for  the  2021  Annual  Meeting  of
Stockholders,  which  will  be  filed  with  the  SEC  within  120  days  after  the  end  of  our  2020  fiscal  year  pursuant  to  Regulation  14A  for  our  2021  Annual
Meeting of Stockholders (the “Proxy Statement”), under the captions “Management and Corporate Governance” and “Code of Conduct and Ethics.

Item 11. Executive Compensation.

The information required by this item is incorporated herein by reference from the Proxy Statement under the captions “Executive Officer and Director
Compensation,”  “Compensation  Discussion  and  Analysis,”  “Compensation  Committee  Report,”  and  “Management  and  Corporate  Governance  –
Compensation Committee Interlocks and Insider Participation.”

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

The information required by this item is incorporated herein by reference from the Proxy Statement, under the captions “Security Ownership of Certain
Beneficial Owners and Management” and “Equity Compensation Plan Information.”

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

The  information  required  by  this  item  is  incorporated  herein  by  reference  from  the  Proxy  Statement,  under  the  captions  “Management  and  Corporate
Governance” and “Certain Relationships and Related Person Transactions.”

Item 14. Principal Accounting Fees and Services.

The  information  required  by  this  item  is  incorporated  herein  by  reference  from  the  Proxy  Statement  under  the  caption  “Independent  Registered  Public
Accounting Firm”

89

 
 
 
 
 
 
 
 
 
 
 
PART IV

Item 15. Exhibits, Financial Statement Schedules.

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

(a)

Financial Statements. 

INDEX TO FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm

Balance Sheets as of December 31, 2020 and 2019

Statements of Operations for the Years ended December 31, 2020, 2019 and 2018

Statements of Stockholders’ Equity for the Years ended December 31, 2020, 2019 and 2018

Statements of Cash Flows for the Years ended December 31, 2020, 2019 and 2018

Notes to the Financial Statements

(b)

Financial Statement Schedules.

F-1

F-3

F-4

F-5

F-6

F-7

No financial statement schedules are provided because the information called for is not required or is shown either in the financial statements or notes.

(c)

Exhibits.

Exhibit
Number

3.1

3.2

4.1

4.2

4.3

10.1**

10.2**

Description
Amended and Restated Certificate of Incorporation of G1 Therapeutics, Inc., dated as of May 22, 2017, filed
as Exhibit 3.1 to the Registrant’s Current Report on Form 8-K filed on May 26, 2017 (File No. 001-38096),
and incorporated herein by reference.

Amended and Restated Bylaws of G1 Therapeutics, Inc., dated as of May 22, 2017, filed as Exhibit 3.2 to the
Registrant’s Current Report on Form 8-K filed on May 26, 2017 (File No. 001-38096), and incorporated
herein by reference.

Specimen Common Stock Certificate, filed as Exhibit 4.1 to the Registrant’s Second Amendment to the
Registration Statement on Form S-1 filed on May 8, 2017 (File No. 333-217285), and incorporated herein by
reference.

Description of Securities of the Registrant.

Second Amended and Restated Registration Rights Agreement, dated as of April 27, 2016, by and among the
Registrant and the Stockholders listed therein, filed as Exhibit 4.6 to the Registrant’s Registration Statement
on Form S-1 filed on April 13, 2017 (File No. 333-217285), and incorporated herein by reference.

Exclusive License Agreement, dated November 23, 2016, by and between the Registrant and The Board of
Trustees of the University of Illinois, filed as Exhibit 10.11 to the Registrant’s Registration Statement on
Form S-1 filed on April 13, 2017 (File No. 333-217285), and incorporated herein by reference.

Amendment No. 1 to Exclusive License Agreement, dated March 24, 2017, by and between the Registrant
and The Board of Trustees of the University of Illinois, filed as Exhibit 10.12 to the Registrant’s Registration
Statement on Form S-1 filed on April 13, 2017 (File No. 333-217285), and incorporated herein by reference.

90

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
   
 
 
   
 
 
 
 
   
 
 
   
 
 
   
10.3**

10.4**

10.5*

10.6*

10.7*

10.8*

10.9*

10.10*

10.11*

10.12*

10.13*

10.14*

10.15*

Loan and Security Agreement, by and between the Registrant and Hercules Capital, Inc., dated May 29,
2020, filed as Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30,
2020 filed on August 5, 2020 (File No. 001-38096), and incorporated herein by reference.

Co-Promotion Agreement by and between the Registrant and Boehringer Ingelheim Pharmaceuticals, Inc.,
dated June 29, 2020, filed as Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q for the quarter
ended June 30, 2020 filed on August 5, 2020 (File No. 001-38096), and incorporated herein by reference.

2011 Equity Incentive Plan, dated March 3, 2011, as amended; First Amendment effective August 27, 2011;
Second Amendment effective October 8, 2013; Third Amendment effective February 4, 2015; Fourth
Amendment effective December 10, 2015; Fifth Amendment effective April 27, 2016; and Sixth Amendment
effective November 7, 2016, filed as Exhibit 10.2 to the Registrant’s Registration Statement on Form S-1
filed on April 13, 2017 (File No. 333-217285), and incorporated herein by reference.

Amended and Restated 2017 Employee, Director and Consultant Equity Plan, filed as Exhibit 10.4 to the
Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2018 filed on August 8, 2018
(File No. 001-38096), and incorporated herein by reference.

  G1 Therapeutics, Inc. 2021 Inducement Equity Incentive Plan.

Form of Indemnification Agreement, filed as Exhibit 10.1 to the Registrant’s Second Amendment to the
Registration Statement on Form S-1 filed on May 8, 2017 (File No. 333-217285), and incorporated herein by
reference.

Non-Employee Director Compensation Policy, filed as Exhibit 10.13 to the Registrant’s Second Amendment
to the Registration Statement on Form S-1 filed on May 8, 2017 (File No. 333-217285), and incorporated
herein by reference.

Scientific, Clinical, and Regulatory Advisor Agreement, by and between the Registrant and Seth A. Rudnick,
M.D., effective July 1, 2020, filed as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the
quarter ended June 30, 2020 filed on August 5, 2020 (File No. 001-38096), and incorporated herein by
reference.

Employment Agreement by and between Registrant and John E. Bailey, Jr. dated September 29, 2020, filed
as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2020
filed on November 4, 2020 (File No. 001-38096), and incorporated herein by reference.

Senior Advisor Agreement between Registrant and John E. Bailey, Jr. dated September 29, 2020, filed as
Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2020
filed on November 4, 2020 (File No. 001-38096), and incorporated herein by reference.

Employment Agreement by and between the Registrant and Mark Avagliano, dated as of July 29, 2019, filed
as Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2019 filed
on August 7, 2019 (File No. 001-38096), and incorporated herein by reference.

Employment Agreement by and between the Registrant and Soma Gupta dated March 12, 2020, filed as
Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2020 filed
on May 6, 2020 (File No. 001-38096), and incorporated herein by reference.

Employment Agreement by and between the Registrant and James S. Hanson, dated as of June 25, 2018,
filed as Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2018
filed on August 8, 2018 (File No. 001-38096), and incorporated herein by reference.

91

 
 
   
 
 
   
 
 
   
 
 
   
 
   
 
 
   
 
 
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
10.16*

10.17*

10.18*

10.19*

10.20*

21.1

23.1

31.1

31.2

32.1

32.2

101.INS

101.SCH

101.CAL

101.DEF

101.LAB

Employment Agreement, by and between the Registrant and Rajesh K. Malik, M.D., dated July 1, 2014, as
amended; First Amendment effective May 5, 2017, filed as Exhibit 10.5 to the Registrant’s Second
Amendment to the Registration Statement on Form S-1 filed on May 8, 2017 (File No. 333-217285), and
incorporated herein by reference; and Second Amendment effective June 12, 2019, filed as Exhibit 10.2 to
the Registrant’s Form 8-K filed on June 13, 2019 (File No. 001-38096), and incorporated herein by reference.

Amended and Restated Employment Agreement by and between the Registrant and Jennifer K. Moses dated
May 8, 2019, filed as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended
March 31, 2019 filed on May 9, 2019 (File No. 001-38096), and incorporated herein by reference.

Employment Agreement by and between the Registrant and Terry Murdock, dated as of August 1, 2017, filed
as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2017
filed on November 8, 2017 (File No. 001-38096) incorporated herein by reference; and First Amendment
effective June 12, 2019, filed as Exhibit 10.3 to the Registrant’s Form 8-K filed on June 13, 2019 (File No.
001-38096), and incorporated herein by reference.

Executive Employment Agreement, by and between the Registrant and Mark A. Velleca, M.D., Ph.D., dated
May 19, 2014, as amended; First Amendment effective February 1, 2015; Second Amendment effective May
10, 2016; and Third Amendment effective May 5, 2017, filed as Exhibit 10.4 to the Registrant’s Second
Amendment to the Registration Statement on Form S-1 filed on May 8, 2017 (File No. 333-217285), and
incorporated herein by reference.

Senior Advisor Agreement between Registrant and Mark A. Velleca, M.D., Ph.D. dated September 29, 2020,
filed as Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30,
2020 filed on November 4, 2020 (File No. 001-38096), and incorporated herein by reference.

Subsidiaries of the Registrant, filed as Exhibit 21.1 to the Registrant’s Registration Statement on Form S-1
filed on April 13, 2017 (File No. 333-217285), and incorporated herein by reference.

  Consent of PricewaterhouseCoopers LLP.

 Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities
Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 Certification of Principal Financial Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities
Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 Certification of Principal Executive Officer Pursuant to 18 U.S.C. § 1350, as Adopted Pursuant to Section
906 of the Sarbanes-Oxley Act of 2002.

 Certification of Principal Financial Officer Pursuant to 18 U.S.C. § 1350, as Adopted Pursuant to Section 906
of the Sarbanes-Oxley Act of 2002.

 Inline XBRL Instance Document

  Inline XBRL Taxonomy Extension Schema Document

  Inline XBRL Taxonomy Extension Calculation Linkbase Document

  Inline XBRL Taxonomy Extension Definition Linkbase Document

  Inline XBRL Taxonomy Extension Label Linkbase Document

92

 
   
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
   
 
  
 
  
 
  
 
 
  
 
  
 
  
 
  
101.PRE

  Inline XBRL Taxonomy Extension Presentation Linkbase Document

104

*
**

 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)XBRL Taxonomy
Extension Presentation Linkbase Document

Management contract or compensatory plan or arrangement.
Confidential treatment has been requested for portions of this exhibit.  These portions have been omitted and have been filed separately with the
U.S. Securities and Exchange Commission.

Item 16. Form 10-K Summary.

None.

93

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

SIGNATURES

Date:  February 24, 2021

  G1 THERAPEUTICS, INC.

  By:

/s/ John E. Bailey, Jr.
John E. Bailey, Jr.
President and Chief Executive Officer

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

Name

/s/ John E. Bailey, Jr.
John E. Bailey, Jr.

/s/ Jennifer K. Moses
Jennifer K. Moses

Title

  President, Chief Executive Officer and Director
  (Principal Executive Officer)

  Chief Financial Officer
  (Principal Financial and Accounting Officer)

/s/ Fredric N. Eshelman
Fredric N. Eshelman, Pharm.D.

/s/ Willie A. Deese
Willie A. Deese

/s/ Glenn P. Muir
Glenn P. Muir

/s/ Garry A. Nicholson
Garry A. Nicholson

/s/ Seth A. Rudnick
Seth A. Rudnick, Ph.D.

/s/ Cynthia L. Schwalm
Cynthia L. Schwalm

/s/ Mark A. Velleca
Mark A. Velleca, M.D., Ph.D.

  Director

  Director

  Director

  Director

  Director

  Director

  Director

94

Date

February 24, 2021

February 24, 2021

February 24, 2021

February 24, 2021

February 24, 2021

February 24, 2021

February 24, 2021

February 24, 2021

February 24, 2021

 
 
 
   
 
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
   
 
 
 
 
   
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm

To the Board of Directors and Stockholders of G1 Therapeutics, Inc.

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying balance sheets of G1 Therapeutics, Inc. (the “Company”) as of December 31, 2020 and 2019, and the related statements
of operations, of redeemable convertible preferred stock and stockholders’ equity (deficit) and of cash flows for each of the three years in the period ended
December 31, 2020, including the related notes (collectively referred to as the “financial statements”). We also have audited the Company's internal control
over financial reporting as of December 31, 2020, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee
of Sponsoring Organizations of the Treadway Commission (COSO).

In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31,
2020 and 2019, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2020 in conformity with
accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective
internal control over financial reporting as of December 31, 2020, based on criteria established in Internal Control - Integrated Framework (2013) issued
by the COSO.

Change in Accounting Principle

As discussed in Note 6 to the financial statements, the Company changed the manner in which it accounts for leases in 2019.

Basis for Opinions

The Company's management is responsible for these financial statements, for maintaining effective internal control over financial reporting, and for its
assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control Over Financial Reporting
appearing under Item 9A. Our responsibility is to express opinions on the Company’s financial statements and on the Company's internal control over
financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States)
(PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and
regulations of the Securities and Exchange Commission and the PCAOB.

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

Our audits of the financial statements included performing procedures to assess the risks of material misstatement of the financial statements, whether due
to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the
amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by
management, as well as evaluating the overall presentation of the financial statements. Our audit of internal control over financial reporting included
obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the
design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we
considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

Definition and Limitations of Internal Control over Financial Reporting

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

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

Critical Audit Matters

F-1

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

Accrued External Clinical Study Costs

As described in Notes 2 and 5 to the financial statements, management estimated and accrued research and development expenses including external
clinical study costs associated with clinical trial activities. The Company’s accrued external clinical study costs were $5.7 million as of December 31, 2020.
The process of estimating and accruing expenses involved reviewing contracts and purchase orders, identifying services that have been provided on the
Company’s behalf, and estimating the level of service performed and the associated cost incurred for the service when the Company has not yet been
invoiced or otherwise notified of the actual cost. Costs for clinical trial activities were estimated based on an evaluation of the vendors’ progress towards
completion of specific tasks, using data such as patient enrollment, clinical site activations or information provided by vendors regarding their actual costs
incurred. Management determined accrual estimates through reports from and discussion with applicable personnel and outside service providers as to the
progress or state of completion of trials, or the services completed.

The principal considerations for our determination that performing procedures relating to accrued external clinical study costs is a critical audit matter are
the significant judgment by management in estimating the costs incurred to date, specifically progress towards completion of specific tasks. This in turn led
to a high degree of auditor judgment, subjectivity and effort in performing procedures and evaluating audit evidence relating to cost estimates made by
management to establish accrued external clinical study costs.        

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the financial
statements. These procedures included testing the effectiveness of controls relating to the completeness and accuracy of accrued external clinical study
costs. These procedures also included, among others, (i) testing management’s process for estimating accrued external clinical study costs, (ii) evaluating
the appropriateness of the method used by management to develop the estimate, (iii) evaluating the reasonableness of significant assumptions, including
progress towards completion of specific tasks and the associated cost incurred for services when the Company has not yet been invoiced or otherwise
notified of the actual cost, and (iv) testing the completeness and accuracy of underlying data used in the model.

/s/ PricewaterhouseCoopers LLP
Raleigh, North Carolina
February 24, 2021

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

F-2

 
 
 
G1 Therapeutics, Inc.
Balance Sheets
(in thousands, except share and per share amounts)

December 31, 2020

December 31, 2019

Assets
Current assets

Cash and cash equivalents
Restricted cash
Accounts Receivable
Prepaid expenses and other current assets

Total current assets

Property and equipment, net
Restricted cash
Operating lease assets
Other assets

Total assets

Liabilities and Stockholders’ Equity
Current liabilities

Accounts payable
Accrued expenses
Deferred revenue
Other current liabilities

Total current liabilities

Loan payable
Operating lease liabilities

Total liabilities

Stockholders’ equity

Common stock, $0.0001 par value, 120,000,000 shares authorized as of
    December 31, 2020 and December 31, 2019, respectively; 38,140,756 and 37,638,260 shares
    issued as of December 31, 2020 and December 31, 2019, respectively; 38,114,090 and
    37,611,594 shares outstanding as of December 31, 2020 and December 31, 2019, respectively
Treasury stock, 26,666 shares
Additional paid-in capital
Accumulated deficit

Total stockholders’ equity
Total liabilities and stockholders' equity

  $

  $

  $

  $

207,306    $
63   
237   
8,786   
216,392   
2,482   
437   
8,026   
1,215   
228,552    $

3,572    $
16,486   
237   
3,148   
23,443   
19,893   
7,865   
51,201   

4   
(8)  
613,462   
(436,107)  
177,351   
228,552    $

269,208 
63 
— 
1,732 
271,003 
3,538 
437 
9,853 
— 
284,831 

3,684 
15,403 
— 
682 
19,769 
— 
9,535 
29,304 

4 
(8)
592,384 
(336,853)
255,527 
284,831

The accompanying notes are an integral part of these financial statements.

F-3

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
G1 Therapeutics, Inc.
Statements of Operations
(in thousands, except share and per share amounts)

License revenue
Operating expenses

Research and development
General and administrative

Total operating expenses
Loss from operations
Other income (expense):
Interest income
Interest expense
Other income (expense)

Total other income (expense), net
Loss before income taxes

Income tax expense
Net loss

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

2020

Year Ended December 31,
2019

2018

  $

45,285    $

—    $

— 

73,271   
68,490   
141,761   
(96,476)  

952   
(1,778)  
(542)  
(1,368)  
(97,844)   $

1,410   
(99,254)   $

(2.62)   $

89,002   
40,039   
129,041   
(129,041)  

6,579   
—   
15   
6,594   
(122,447)   $

—   

(122,447)   $

(3.27)   $

37,878,026   

37,499,256   

70,683 
18,603 
89,286 
(89,286)

3,998 
— 
— 
3,998 
(85,288)

— 
(85,288)

(2.56)
33,316,719

  $

  $

  $

The accompanying notes are an integral part of these financial statements.

F-4

 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
G1 Therapeutics, Inc.
Statements of Redeemable Convertible Preferred Stock and Stockholders’ Equity (Deficit)
(in thousands, except share amounts)

Common stock

  Amount
  $

Balance at December 31, 2017
Public offering (Follow-on Financings)
Public offering (ATM)
Exercise of common stock options
Stock-based compensation
Stock financing costs
Net loss during year
Balance at December 31, 2018

Exercise of common stock options

Stock-based compensation
Net loss during year
Balance at December 31, 2019

Exercise of common stock options

Stock-based compensation
Net loss during year
Balance at December 31, 2020

Shares
28,420,511 
7,360,000 
752,008 
736,273 
— 
— 
— 
37,268,792 

369,468 

— 
— 
37,638,260 

502,496 

— 
— 
38,140,756 

  $

  $

  $

3 
1 
— 
— 
— 
— 
— 
4 

— 

— 
— 
4 

— 

— 
— 
4 

Treasury stock

Shares

  Amount

Additional
paid-in
capital

Accumulated
deficit

Total stock-
holders'
equity

(26,666)   $
— 
— 
— 
— 
— 
— 
(26,666)   $

— 

— 
— 
(26,666)   $

— 

— 
— 
(26,666)   $

(8)   $
— 

— 
— 
— 
— 
(8)   $

— 

— 
— 
(8)   $

— 

— 
— 
(8)   $

  $

222,511 
303,521 
36,068 
1,797 
10,225 

(892)  
— 
573,230 

  $

2,705 

16,449 
— 
592,384 

2,308 

18,770 
— 
613,462 

  $

  $

(129,118)   $
— 

— 
— 
— 

(85,288)  
(214,406)   $

— 

— 

(122,447)  
(336,853)   $

— 

— 

(99,254)  
(436,107)   $

93,388  
303,522  
36,068  
1,797 
10,225  
(892)
(85,288)
358,820  

2,705 

16,449  
(122,447)
255,527  

2,308 

18,770  
(99,254)
177,351  

The accompanying notes are an integral part of these financial statements.

F-5

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
G1 Therapeutics, Inc.
Statements of Cash Flows
(amounts in thousands)

Cash flows from operating activities
Net loss
Adjustments to reconcile net loss to net cash used in operating activities

2020

Year Ended December 31,
2019

2018

  $

(99,254)   $

(122,447)   $

(85,288)

Stock-based compensation
Depreciation and amortization
Loss on disposal of fixed assets
Amortization of debt issuance costs
Non-cash interest expense
Non-cash equity interest, net
Change in operating assets and liabilities

Accounts Receivable
Prepaid expenses and other assets
Accounts payable
Accrued expenses and other liabilities
Deferred revenue
Deferred rent

Net cash used in operating activities

Cash flows from investing activities
Proceeds from disposal of property and equipment
Purchases of property and equipment

Net cash provided/used in investing activities

Cash flows from financing activities
Proceeds from stock options exercised
Proceeds from loan agreement
Payments of debt issuance costs
Proceeds from public offering, net of underwriting fees and commissions
Payment of public offering costs

Net cash provided by financing activities
Net change in cash, cash equivalents and restricted cash

Cash, cash equivalents and restricted cash
Beginning of period
End of period

Supplemental disclosure of cash flow information
Cash paid for interest
Non-cash investing and financing activities
Upfront project costs and other current assets in accounts payable and accrued expenses
Purchases of equipment in accounts payable and accrued expenses
Operating lease liabilities arising from obtaining right-of-use asset

18,770   
582   
322   
615   
166   
(867)  

(237)  
(5,545)  
(244)  
1,713   
237   
—   
(83,742)  

152   
—   
152   

2,308   
20,000   
(620)  
—   
—   
21,688   
(61,902)  

16,449   
356   
—   
—   
—   
—   

—   
(219)  
248   
6,042   
—   
—   
(99,571)  

—   
(2,716)  
(2,716)  

2,705   
—   
—   
—   
—   
2,705   
(99,582)  

  $

  $

269,708   
207,806    $

369,290   
269,708    $

997    $

—    $

132   
-   
-   

43   
41   
8,947   

10,225 
175 
8 
— 
— 
— 

— 
113 
(1,002)
1,446 
— 
16 
(74,307)

— 
(709)
(709)

1,797 
— 
— 
339,589 
(892)
340,494 
265,478 

103,812 
369,290 

— 

107 
100 
-

The accompanying notes are an integral part of these financial statements.

F-6

 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
    
 
    
 
  
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
G1 Therapeutics, Inc.
Notes to Financial Statements

1. Description of Business

G1 Therapeutics, Inc. (the “Company”) is a commercial-stage biopharmaceutical company based in Research Triangle Park, North Carolina focused on the
development  and  commercialization  of  novel  small  molecule  therapeutics  for  the  treatment  of  patients  with  cancer.  Our  first  FDA-approved  product,
COSELA™  (trilaciclib)  is  the  first  and  only  therapy  indicated  to  proactively  help  protect  bone  marrow  from  the  damage  of  chemotherapy  and  is  first
innovation in managing myelosuppression in decades. The Company was incorporated on May 19, 2008 in the state of Delaware.

The  Company  is  advancing  two  clinical-stage  programs.  Our  lead  compound  trilaciclib  is  a  first-in-class  therapy  designed  to  help  protect  against
chemotherapy-induced myelosuppression. Trilaciclib helps protect HSPCs in bone marrow by transiently inhibiting CDK4/6 leading to a temporary arrest
of  susceptible  host  cells  during  chemotherapy  in  ES-SCLC  patients.   This  reduces  the  duration  and  severity  of  neutropenia  and  other  myelosuppressive
consequences of chemotherapy. In addition, trilaciclib activates and enhances the immune system response driving increased anti-tumor efficacy, which we
continue to explore in clinical trials. We are developing trilaciclib in a variety of tumors, including small cell lung cancer (SCLC), colorectal cancer (CRC),
metastatic triple negative breast cancer (mTNBC), neoadjuvant breast cancer, non-small cell lung cancer (NSCLC) and bladder cancer. Rintodestrant is an
oral selective estrogen receptor degrader (SERD) for the treatment of estrogen receptor-positive (ER+) breast cancer. In 2020, the Company out-licensed
global  rights  to  lerociclib,  an  internally  discovered  and  differentiated  oral  CDK4/6  inhibitor  designed  to  enable  more  effective  combination  treatment
strategies across multiple oncology indications, including ER+, HER2-negative (HER2-) breast cancer. The Company also has intellectual property focused
on cyclin-dependent kinase targets.

Trilaciclib,  a  transient  IV  CDK4/6  inhibitor,  is  a  novel  therapeutic  approach  which  is  given  before  chemotherapy  that  temporarily  blocks  progression
through  the  cell  cycle.  This  provides  two  benefits.  First,  it  proactively  helps  protect  HSPCs  in  bone  marrow  leading  to  preservation  of  neutrophils,
erythrocytes, and platelets (called myeloprotection) which reduces the occurrences and severity of neutropenia and other myelosuppressive consequences
of chemotherapy. This myeloprotection benefit has been conclusively proven in double-blind placebo-controlled clinical trials in extensive-stage small cell
lung  cancer.  Second,  trilaciclib  activates  and  enhances  the  immune  system  response  driving  increased  anti-tumor  efficacy,  which  we  are  exploring  in
clinical trials.

On February 12, 2021, COSELA (trilaciclib) for injection was approved by the U.S. Food and Drug Administration (FDA) to decrease the incidence of
chemotherapy-induced  myelosuppression  in  adult  patients  when  administered  prior  to  a  platinum/etoposide-containing  regimen  or  topotecan-containing
regimen  for  extensive  stage  small  cell  lung  cancer  (ES-SCLC).  COSELA  is  expected  to  be  commercially  available  through  G1’s  specialty  pharmacy
partner  network  in  early  March.  COSELA  is  administered  intravenously  as  a  30-minute  infusion  completed  within  4  hours  prior  to  the  start  of
chemotherapy  and  is  the  first  FDA-approved  therapy  to  provide  proactive,  multilineage  protection  from  chemotherapy-induced  myelosuppression.  The
approval of COSELA is based on data from three randomized, placebo-controlled trials that showed patients receiving COSELA prior to chemotherapy had
clinically meaningful and statistically significant reduction in the duration and severity of neutropenia, reduction of red blood cell transfusions, as well as
improvements in other myeloprotection measures, compared to patients receiving chemotherapy without COSELA.

In  June  2020,  the  Company  entered  into  a  three-year  co-promotion  agreement  for  COSELA  in  the  United  States  and  Puerto  Rico  with  Boehringer
Ingelheim. The agreement is limited to support SCLC. Under the terms of the agreement, the Company will book revenue in the United States and Puerto
Rico  and  retain  development  and  commercialization  rights  to  trilaciclib.  The  Company  will  lead  marketing,  market  access  and  medical  engagement
initiatives; Boehringer Ingelheim will lead sales force engagements. In addition, discussions with European regulatory authorities have indicated existing
data is sufficient to support a Marketing Authorization Application (MAA) to the European Medicines Agency (EMA) for trilaciclib for myeloprotection in
SCLC, which the Company plans to pursue in collaboration with a partner.

In  August  2020,  the  Company  entered  into  an  exclusive  license  agreement  with  Nanjing  Simcere  Dongyuan  Pharmaceutical  Co.,  Ltd  (“Simcere”)  for
development and commercialization rights for trilaciclib in all indications in Greater China (mainland China, Hong Kong, Macau and Taiwan). Under the
terms of the agreement, the Company received an upfront payment of $14.0 million in September 2020 and will be eligible to receive up to $156.0 million
in development and commercial milestone payments. Simcere will also pay the Company tiered low double-digit royalties on annual net sales of trilaciclib
in  Greater  China.  As  part  of  this  agreement,  Simcere  will  participate  in  global  clinical  trials  of  trilaciclib  and  the  companies  will  be  responsible  for  all
development and commercialization costs in their respective territories.

We  are  also  executing  on  our  tumor-agnostic  strategy  to  evaluate  the  potential  benefits  of  trilaciclib  to  patients  with  other  tumors  that  are  treated  with
chemotherapy. We have two on-going trials: a pivotal 1L colorectal cancer (CRC) study and a Phase 2 neoadjuvant breast cancer (I-SPY 2). We intend to
initiate  another  pivotal  study  in  mTNBC  (including  1L  and  2L  patients)  and  have  two  additional  Phase  2  studies:  a  2L/3L  non-small  cell  lung  cancer
(NSCLC)  trial  in  post-checkpoint  patients  and  a  1L  bladder  cancer  trial  with  chemotherapy  and  a  checkpoint  inhibitor.  These  studies  across  treatment
settings and tumor types will evaluate trilaciclib’s dual benefits in both multi-lineage myeloprotection and anti-tumor efficacy.

F-7

 
 
The Company is developing rintodestrant, an oral SERD, as a monotherapy and in combination with CDK4/6 inhibitors, initially Ibrance® (palbociclib),
for the treatment of ER+ breast cancer. In 2018, the Company initiated a Phase 1/2a (dose escalation/dose expansion) clinical trial in ER+, HER2- breast
cancer. Preliminary data from the Phase 1 potion of this trial were presented at the 2019 ESMO Congress, showing that rintodestrant was well tolerated and
demonstrated evidence of anti-tumor activity in heavily pre-treated patients. The mature monotherapy data were presented at the 2020 San Antonio Breast
Cancer  Symposium  (SABCS)  conference,  confirming  the  safety  and  efficacy  results  of  the  preliminary  analysis.  Based  on  these  findings  the  Company
advanced an 800 mg dose of rintodestrant into a 40-patient Phase 2 combination trial with palbociclib, a CDK4/6 inhibitor. The Company has completed
enrollment of patients in this trial, and expects to disclose initial safety and efficacy data in the second quarter of 2021. Palbociclib is being provided under
a non-exclusive clinical supply agreement that was signed with Pfizer in February 2020. We will evaluate partnering options for rintodestrant following the
data read-out from our combination study.

Lerociclib is a differentiated oral CDK4/6 inhibitor being developed for use in combination with other targeted therapies in multiple oncology indications.
In 2020, the Company entered into separate, exclusive agreements with EQRx, Inc. (rights for U.S., Europe, Japan and all markets outside Asia-Pacific)
and  Genor  Biopharma  Co.  Inc.  (rights  for  Asia-Pacific,  excluding  Japan)  for  the  development  and  commercialization  of  lerociclib  in  all  indications.
Combined, these agreements provide $26.0 million in upfront payments to the Company, and the opportunity for up to $330.0 million in potential milestone
payments,  plus  sales-based  royalties.  EQRx,  Inc.  and  Genor  Biopharma  Co.  Inc.  are  responsible  for  all  costs  related  to  the  development  and
commercialization of lerociclib in their respective territories.

The Company’s financial statements have been prepared assuming that the Company will continue as a going concern, which contemplates the realization
of assets and the settlement of liabilities and commitments in the normal course of business. As of December 31, 2020, the Company had an accumulated
deficit of $436.1 million. The Company has reported a net loss in all fiscal periods since inception and expects to incur substantial losses in the future to
conduct research and development and pre-commercialization activities.

As  of  December  31,  2020,  the  Company  had  cash  and  cash  equivalents  of  $207.3  million.      The  Company  expects  that  its  existing  cash  and  cash
equivalents will enable it to fund its operating expenses and capital expenditure requirements for greater than 12 months from the date of filing this Annual
Report.

2. Basis of Presentation and Summary of Significant Accounting Policies

Basis of Presentation

The  Company  has  prepared  the  accompanying  financial  statements  in  conformity  with  generally  accepted  accounting  principles  in  the  United  States  of
America (“U.S. GAAP”).

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts
reported in the financial statements and the accompanying notes. Actual results could differ from those estimates. These estimates include the Company’s
common stock valuation, stock compensation, and deferred tax asset valuation allowance.

Revenue Recognition

For elements of those arrangements that we determine should be accounted for under ASC 606, Revenue from Contracts with Customers (“ASC 606”), we
assess which activities in our license or collaboration agreements are performance obligations that should be accounted for separately and determine the
transaction  price  of  the  arrangement,  which  includes  the  assessment  of  the  probability  of  achievement  of  future  milestones  and  other  potential
consideration.  For  arrangements  that  include  multiple  performance  obligations,  such  as  granting  a  license  or  performing  manufacturing  or  research  and
development  activities,  we  allocate  the  transaction  price  based  on  the  relative  standalone  selling  price  and  recognize  revenue  that  is  allocated  to  the
respective performance obligation when (or as) control is transferred to the customer and the performance obligation is satisfied. Accordingly, we develop
assumptions  that  require  judgment  to  determine  the  standalone  selling  price  for  each  performance  obligation  identified  in  the  contract.  These  key
assumptions may include revenue forecasts, clinical development timelines and costs, discount rates and probabilities of clinical and regulatory success.

F-8

 
 
Licenses of Intellectual Property

If a license to the Company’s intellectual property is determined to be distinct from the other performance obligations identified in the arrangement, the
Company recognizes revenue allocated to the license when the license is transferred to the customer and the customer is able to use and benefit from the
license. For licenses that are bundled with other promises, the Company utilizes judgment to assess the nature of the combined performance obligation to
determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring
progress for purposes of recognizing revenue associated with the bundled performance obligation. The Company evaluates the measure of progress each
reporting period and, if necessary, adjusts the measure of progress and related revenue recognition.

Milestone Payments

At the inception of each arrangement that includes developmental and regulatory milestone payments, the Company evaluates whether the achievement of
each milestone specifically relates to the Company’s efforts to satisfy a performance obligation or transfer a distinct good or service within a performance
obligation. The Company evaluates each milestone to determine when and how much of the milestone to include in the transaction price. The Company
first estimates the amount of the milestone payment that the Company could receive using either the expected value or the most likely amount approach.
The Company primarily uses the most likely amount approach as that approach is generally most predictive for milestone payments with a binary outcome.
Then, the Company considers whether any portion of that estimated amount is subject to the variable consideration constraint (that is, whether it is probable
that  a  significant  reversal  of  cumulative  revenue  would  not  occur  upon  resolution  of  the  uncertainty).  The  Company  updates  the  estimate  of  variable
consideration included in the transaction price at each reporting date which includes updating the assessment of the likely amount of consideration and the
application of the constraint to reflect current facts and circumstances.

Royalties

For  arrangements  that  include  sales-based  royalties,  including  milestone  payments  based  on  the  level  of  sales,  and  the  license  is  deemed  to  be  the
predominant  item  to  which  the  royalties  relate,  the  Company  will  recognize  revenue  at  the  later  of  (i)  when  the  related  sales  occur,  or  (ii)  when  the
performance  obligation  to  which  some  or  all  of  the  royalty  has  been  allocated  has  been  satisfied  (or  partially  satisfied).  To  date,  the  Company  has  not
recognized any revenue related to sales-based royalties or milestone payments based on the level of sales.

Cash and Cash Equivalents

The  Company  considers  all  highly  liquid  investments  purchased  with  an  original  maturity  of  three  months  or  less  at  the  date  of  purchase  to  be  cash
equivalents.  Cash  and  cash  equivalents  at  December  31,  2020  and  2019  consist  of  amounts  on  deposit  in  banks,  including  checking  accounts,  money
market accounts and certificates of deposit. Cash deposits are all in financial institutions in the United States. As part of the lease for the new office space,
the  Company  obtained  a  standby  letter  of  credit  in  the  amount  of  $0.5  million  related  to  the  security  deposit.  This  letter  of  credit  is  secured  by  money
market funds at the financial institution. Therefore, these funds are classified as restricted cash on the balance sheet. The letter of credit will be reduced
ratably on each anniversary of the commencement of the lease until the end of the lease term.

Concentration of Credit Risk

Financial  instruments  that  potentially  subject  the  Company  to  credit  risk  consist  of  cash  and  cash  equivalents.  Deposits  with  financial  institutions  are
insured, up to certain limits, by the Federal Deposit Insurance Corporation (“FDIC”). The Company’s cash deposits often exceed the FDIC insurance limit;
however, all deposits are maintained with high credit quality institutions and the Company has not experienced any losses in such accounts. The financial
condition of financial institutions is periodically reassessed, and the Company believes the risk of any loss is minimal. The Company believes the risk of
any loss on cash due to credit risk is minimal.

Property and Equipment

Property  and  equipment  are  stated  at  cost  less  accumulated  depreciation.  Depreciation  is  generally  calculated  using  the  straight-line  method  over  the
following estimated useful lives:

Computer equipment
Laboratory equipment
Furniture and fixtures
Leasehold improvements

F-9

   5 years
   5 years
   7 years
   7 years

 
 
 
 
 
 
 
Costs  associated  with  maintenance  and  repairs  are  charged  to  expense  as  incurred.  Property  and  equipment  held  under  leasehold  improvements  are
amortized over the shorter of the lease term or the estimated useful life of the related asset.

Impairment of Long-lived Assets

The Company evaluates its long-lived assets for indicators of possible impairment by comparison of the carrying amounts to future net undiscounted cash
flows expected to be generated by such assets when events or changes in circumstances indicate the carrying amount of an asset may not be recoverable.
Should an impairment exist, the impairment loss would be measured based on the excess carrying value of the asset over the asset’s fair value based on
discounted estimates of future cash flows. For the years ended December 31, 2020, 2019 and 2018, the Company’s management evaluated its long-lived
assets and determined no impairment charge was needed.

Research and Development

Research and development expenses consist of costs incurred to further the Company’s research and development activities and include salaries and related
employee  benefits,  manufacturing  of  pharmaceutical  active  ingredients  and  drug  products,  costs  associated  with  clinical  trials,  nonclinical  activities,
regulatory activities, research-related overhead expenses and fees paid to expert consultants, external service providers and contract research organizations
which  conduct  certain  research  and  development  activities  on  behalf  of  the  Company.  Costs  incurred  in  the  research  and  development  of  products  are
charged to research and development expense as incurred.

Each  reporting  period,  management  estimated  and  accrued  research  and  development  expenses,  including  external  clinical  study  costs  associated  with
clinical trial activities. The process of estimating and accruing expenses involved reviewing contracts and purchase orders, identifying services that have
been provided on the Company’s behalf, and estimating the level of service performed and the associated cost incurred for the service when the Company
has not yet been invoiced or otherwise notified of the actual costs.

Costs for clinical trial activities were estimated based on an evaluation of vendors’ progress towards completion of specific tasks, using data such as patient
enrollment, clinical site activations or information provided by vendors regarding their actual costs incurred. Payments for these activities are based on the
terms of individual contracts and payment timing may differ significantly from the period in which the services were performed. The Company determines
accrual estimates through reports from and discussions with applicable personnel and outside service providers as to the progress or state of completion of
trials,  or  the  services  completed.  The  estimates  of  accrued  external  clinical  study  costs  as  of  each  balance  sheet  date  are  based  on  the  facts  and
circumstances known at the time.

Fair value of Financial Instruments

The Company provides disclosure of financial assets and financial liabilities that are carried at fair value based on the price that would be received upon
sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurements may
be classified based on the amount of subjectivity associated with the inputs to fair valuation of these assets and liabilities using the following three levels:

Level 1

Level 2

Inputs  are  unadjusted  quoted  prices  in  active  markets  for  identical  assets  or  liabilities  that  the  Company  has  the  ability  to  access  at  the
measurement date.

Inputs  include  quoted  prices  for  similar  assets  and  liabilities  in  active  markets,  quoted  prices  for  identical  or  similar  assets  or  liabilities  in
markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally
from or corroborated by observable market data by correlation or other means.

Level 3

Unobservable inputs that reflect the Company’s estimates of the assumptions that market participants would use in pricing the asset or liability.
The Company develops these inputs based on the best information available, including its own data.

The carrying amounts of cash, cash equivalents, accounts payable and accrued liabilities approximate fair value because of their short-term nature.

F-10

 
 
 
 
 
  
 
 
  
 
 
  
At  December 31, 2020 and 2019 these financial instruments and respective fair values have been classified as follows (in thousands):

Assets

Money market funds
Certificates of Deposit
Total assets at fair value:

Assets

Money market funds
Certificates of Deposit
Total assets at fair value:

Quoted prices
in active
markets for
identical
assets
(Level 1)

Significant
other
observable
inputs
(Level 2)

Significant
other
unobservable
inputs
(Level 3)

Balance at
December 31,
2020

  $

  $

190,180    $
15,970     
206,150    $

—    $
—     
—    $

—    $
—     
—    $

190,180 
15,970 
206,150

Quoted prices
in active
markets for
identical
assets
(Level 1)

Significant
other
observable
inputs
(Level 2)

Significant
other
unobservable
inputs
(Level 3)

Balance at
December 31,
2019

  $

  $

252,563    $
15,873     
268,436    $

—    $
—     
—    $

—    $
—     
—    $

252,563 
15,873 
268,436

During the twelve months ended December 31, 2020 and December 31, 2019, there were no changes in valuation methodology.

The Loan Payable (discussed in Note 7), which is classified as a Level 3 liability, has a variable interest rate and the carrying value approximates its fair
value. As of December 31, 2020, the carrying value was $19.9 million.

Patent Costs

Costs associated with the submission of patent applications are expensed as incurred given the uncertainty of the future economic benefits of the patents.
Patent-related legal expenses included in general and administrative costs were approximately $2,761 thousand, $2,114 thousand, and $1,352 thousand for
the years ended December 31, 2020, 2019 and 2018, respectively.  

Income Taxes

Income  taxes  are  accounted  for  using  the  asset  and  liability  method.  Deferred  tax  assets  and  liabilities  are  recognized  for  the  future  tax  consequences
attributable to temporary differences between the financial statements carrying amounts of assets and liabilities and their respective tax bases, operating
loss  carryforwards,  and  tax  credit  carryforwards.  Deferred  tax  assets  and  liabilities  are  measured  using  enacted  tax  rates  expected  to  apply  to  taxable
income  in  the  years  in  which  those  temporary  differences  are  expected  to  be  recovered  or  settled.  The  effect  on  deferred  tax  assets  and  liabilities  of  a
change in tax rates is recognized in income in the period that includes the enactment date.

In  accordance  with  Financial  Accounting  Standards  Board  (FASB)  Accounting  Standards  Codification  (ASC)  740,  Accounting  for  Income  Taxes,  the
Company reflects in the financial statements the benefit of positions taken in a previously filed tax return or expected to be taken in a future tax return only
when  it  is  considered  ‘more-likely-than-not’  that  the  position  taken  will  be  sustained  by  a  taxing  authority.  As  of  December  31,  2020  and  2019,  the
Company had no unrecognized income tax benefits and correspondingly there is no impact on the Company’s effective income tax rate associated with
these  items.  The  Company’s  policy  for  recording  interest  and  penalties  relating  to  uncertain  income  tax  positions  is  to  record  them  as  a  component  of
income tax expense in the accompanying statements of operations. As of December 31, 2020 and 2019, the Company had no such accruals.

Stock-Based Compensation

The primary type of stock-based payments utilized by the Company are stock options. The Company accounts for stock-based employee compensation
arrangements by measuring the cost of employee services received in exchange for all equity awards granted based on the fair value of the award on the
grant date. The fair value of each employee stock option is estimated on the date of grant using an options pricing model. The Company currently uses the
Black-Scholes valuation model to estimate the fair value of its share-

F-11

 
 
 
 
   
   
   
 
   
      
      
      
  
   
 
 
 
 
   
   
   
 
   
      
      
      
  
   
 
 
 
 
 
 
based payments. The model requires management to make a number of assumptions including expected volatility, expected life, risk-free interest rate and
expected dividends.

The Company accounts for stock-based non-employee compensation arrangements by recording the expense of such services based on the fair value of the
equity instrument as estimated using the Black-Scholes pricing model. The fair value of the equity instrument is charged to operating expense over the term
of the service agreement. In accordance with the implementation of ASU No. 2018-07 on January 1, 2019, the fair value of non-employee stock options is
no longer be re-measured each reporting period.

Segment Information

The Company manages its operations as a single segment for the purposes of assessing performance and making operating decisions. All of the Company’s
assets are held in the United States.

Comprehensive Loss

Comprehensive loss includes net loss as well as other changes in stockholders’ equity (deficit) that result from transactions and economic events other than
those with stockholders. There was no difference between net loss and comprehensive loss for each of the periods presented in the accompanying financial
statements.

Leases
We determine if an arrangement is a lease at inception. Operating lease assets represent our right to use an underlying asset for the lease term and lease
liabilities  represent  our  obligation  to  make  lease  payments  arising  from  the  lease.  Operating  leases  are  included  in  operating  lease  assets,  other  current
liabilities, and operating lease liabilities on our balance sheet at December 31, 2020. Operating lease assets and operating lease liabilities are recognized
based on the present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do not provide an
implicit rate, we use our incremental borrowing rate based on the information available at commencement date to determine the present value of future
payments.  Our  lease  terms  may  include  options  to  extend  or  terminate  the  lease  when  it  is  reasonably  certain  that  we  will  exercise  that  option.  Lease
expense for minimum lease payments is recognized on a straight-line basis over the lease term.

Debt Issuance Costs

Debt issuance costs are amortized to interest expense over the estimated life of the related debt based on the effective interest method. In accordance with
ASC 835, Interest, we present debt issuance costs on the condensed balance sheet as a direct deduction from the associated debt.

Coronavirus (COVID-19) Impact on Operations

The Company has implemented business continuity plans to address the COVID-19 pandemic and minimize disruptions to ongoing operations. Enrollment
of  patients  in  current  and  future  clinical  trials  may  be  impacted  by  COVID-19.  The  Company  does  not  anticipate  significant  supply  chain  delays  or
shortages as a result of the COVID-19 pandemic. COVID-19 travel limitations and government-mandated work-from-home or shelter-in-place orders, may
reduce the number of in-person meetings with prescribers and fewer patient visits with physicians, potentially resulting in fewer new prescriptions.

The  established  a  COVID-19  response  team  which  continually  monitors  the  impact  of  COVID-19  on  its  operations.    The  COVID-19  response  team
manages workplace protocols that govern employees use of our office. To mitigate the impact of COVID-19 on its business, the Company put in place the
following safety measures for its employees, patients, healthcare professionals, and suppliers to limit exposure: the Company substantially restricted travel,
supplied  personal  protective  equipment  to  employees,  limited  access  to  its  headquarters  and  asked  most  of  its  staff  to  work  remotely.  In  addition,  the
Company transitioned most of its employees to working remotely and added bandwidth and VPN capacity to its infrastructure. The Company will continue
to monitor the impact of COVID-19 on its operations and report to the Board regularly on the progress of its response to the COVID-19 outbreak.

Recent Accounting Pronouncements

Adoption of New Accounting Standards

In  August  2018,  the  FASB  issued  ASU  No.  2018-15,  Goodwill  and  Other—Internal-Use  Software  (Subtopic  350-40):  Customer’s  Accounting  for
Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (“ASU 2018-15”). The FASB issued ASU 2018-15 to align
the requirements for capitalizing implementation costs incurred in a cloud-based hosting

F-12

 
 
 
 
arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and
hosting  arrangements  that  include  an  internal-use  software  license).  ASU  2018-15  became  effective  for  annual  and  interim  reporting  periods  beginning
after December 15, 2019. The Company adopted ASU 2018-15 on January 1, 2020 using the prospective method of adoption, and the adoption did not
have a material impact to the financial statements.

3. Property and Equipment

Property and equipment consists of the following (in thousands):

Computer equipment
Laboratory equipment
Furniture and fixtures
Leasehold improvements
Accumulated depreciation

Property and equipment, net

December 31,
2020

December 31,
2019

  $

  $

327    $
334     
866     
1,782     
(827)    
2,482    $

332 
871 
1,071 
1,941 
(677)
3,538

Depreciation expenses relating to property and equipment were $582 thousand, $356 thousand, and $175 thousand for the years ended December 31, 2020,
2019 and 2018, respectively.

4. Patent License Agreement

On November 23, 2016, the Company entered into a license agreement with the Board of Trustees of the University of Illinois (“the University”), which
was  amended  on  March  24,  2017.  Pursuant  to  the  license  agreement,  as  amended,  the  University  licensed  patent  rights  to  the  Company,  with  rights  of
sublicense, to make, have made, use, import, sell and offer for sale products covered by certain patent rights owned by the University. The rights licensed to
the Company are exclusive, worldwide, non-transferable rights, for all fields of use. Under the terms of the agreement the Company paid a one-time only,
non-refundable license issue fee in the amount of $0.5 million which was charged to research and development expense in the fourth quarter of 2016.

The Company is also obligated to pay annual maintenance fees to the University. All annual minimum payments are fully creditable against any royalty
payments made by the Company. Under the terms of the agreement, the Company must pay the University royalty percentage on all net sales of products
and a share of sublicensing revenues. In addition, the University is eligible to receive milestone payments of up to $2.6 million related to the initiation and
execution of clinical trials and the first commercial sale of a product in another country. To date, the Company has made milestone payments totaling $0.6
million, of which $0 was incurred during 2020. The Company will be responsible for any future patent prosecution costs that may arise.

F-13

 
 
 
 
   
 
 
 
 
 
   
 
  
   
   
   
   
 
 
The term of the license agreement will continue until the later of (i) the expiration of the last valid claim within the patent rights covering the product in
such  country,  (ii)  the  expiration  of  market  exclusivity  in  such  country  and  (iii)  the  10th  anniversary  of  the  first  commercial  sale  in  such  country.  The
University may terminate the agreement in the event (i) the Company fails to pay any amount or make any report when required to be made and fails to
cure such failure within thirty (30) days after receipt of notice from the University, (ii) is in breach of any provision of the agreement and fails to remedy
within  forty-five  (45)  days  after  receipt  of  notice,  (iii)  makes  a  report  to  the  University  under  the  agreement  that  is  determined  to  be  materially  false,
(iv) declares insolvency or bankruptcy or (v) takes an action that causes patent rights or technical information to be subject to lien or encumbrance and fails
to remedy any such breach with in forty-five (45) days of receipt of notice from the University. The Company may terminate the agreement at any time on
written  notice  to  the  University  at  least  ninety  (90)  days  prior  to  the  termination  date  specified  in  the  notice.  Upon  expiration  or  termination  of  the
agreement, all rights revert to the University.

5. Accrued Expenses

Accrued expenses are comprised as follows (in thousands):

Accrued external research
Accrued professional fees and other
Accrued external clinical study costs
Accrued compensation expense

Accrued expenses

December 31,
2020

December 31,
2019

  $

  $

3,219    $
3,920     
5,683     
3,664     
16,486    $

2,737 
1,487 
7,996 
3,183 
15,403

6. Leases

We  adopted  ASC  842  as  of  January  1,  2019.  Prior  period  amounts  have  not  been  adjusted  and  continue  to  be  reported  in  accordance  with  our  historic
accounting under ASC 840.

Pursuant to a lease agreement dated January 10, 2014 (the “Lease”), on April 1, 2014, the Company leased office and lab space with a free rent period and
escalating rent payments; the Lease had an expiration date of July 31, 2017. The Lease was amended on January 27, 2016 to lease new larger office and lab
space beginning in August 2016 with a discounted rent period and escalating rent payments and the Lease term was extended to December 31, 2022. The
amendment also contained an option for a five-year renewal and a right of first refusal to lease adjacent office space. The Lease was further amended on
March  27,  2017  to  lease  additional  office  space  beginning  in  August  2017  with  a  discounted  rent  period  and  escalating  rent  payments.  The  Lease  was
amended  again  in  January  2018  to  lease  additional  adjacent  office  space  beginning  in  August  2018  with  a  discounted  rent  period  and  escalating  rent
payments.  The  term  of  the  renewal  option  contained  in  the  Lease,  as  amended,  was  not  included  in  the  measurement  of  the  operating  lease  asset  and
liability since exercise of the option was uncertain.

On March 20, 2020, the Lease was amended to surrender three of the office spaces previously entered into above, with a termination date of May 31, 2020
and in consideration of a termination fee to be paid. The lease payments and term for the remaining occupied space will remain the same. Due to these
changes in lease terms for the three office spaces, in March 2020 the Company modified the operating lease liabilities and operating lease assets of these
three office spaces to reflect the new terms.

In November 2018, the Company signed a new lease to secure approximately 60,000 square feet of laboratory and office space at 700 Park Offices Drive in
Research Triangle Park, NC (“700 Lease”). The 700 Lease commenced on September 2, 2019 and has an expiration date of September 30, 2027 for the
initial term with the Company having the option to renew for an additional 5 years. The term of the renewal option contained in the Lease was not included
in the measurement of the operating lease asset and liability since exercise of the option was uncertain. As part of the 700 Lease, the Company obtained a
standby letter of credit in the amount of $0.5 million related to the security deposit. This letter of credit is secured by money market funds at the financial
institution. Therefore, these funds are classified as restricted cash on the balance sheet. The letter of credit will be reduced ratably on each anniversary of
the commencement of the 700 Lease until the end of the lease term. 

F-14

 
 
 
 
   
 
 
 
 
 
   
 
  
   
   
   
 
 
 
 The tables below reflect the Company’s lease position and weighted-average lease terms and discount rates for our operating leases as of December 31,
2020.  Operating  lease  liabilities  are  based  on  the  net  present  value  of  the  remaining  lease  payments  over  the  remaining  lease  term.  In  determining  the
present value of lease payments, we use our incremental borrowing rate based on the information available at the lease commencement date.

Classification on the Balance Sheet

  December 31, 2020  

(in thousands)
Assets
Operating lease assets
Total lease assets

Liabilities
Current

Operating
Non-current
Operating

Total lease liabilities

  Operating lease assets

  Other current liabilities

  Operating lease liabilities

Lease Term and Discount Rate
Weighted-average remaining lease term (years)

Operating leases

Weighted-average discount rate

Operating leases

The table below presents information related to the lease costs for operating leases (in thousands):

 $
 $

 $

 $

8,026 
8,026 

988 

7,865 
8,853

December 31, 2020

6.6 

8.0%

(in thousands)

  Classification

Operating lease costs (a)

  Research and development
  General and administrative

Total operating lease costs
(a) Includes variable lease costs
which are immaterial.

Year Ended December 31,
2019

2020

2018

$

  $

955 
1,191 
2,146 

 $

 $

609 
368 
977 

 $

 $

298 
83 
381 

The  table  below  reconciles  the  undiscounted  cash  flow  for  each  of  the  first  five  years  and  total  of  the  remaining  years  to  the  operating  lease  liabilities
recorded on the balance sheet as of December 31, 2020 (in thousands):

Years ending December 31,

2021
2022
2023
2024
2025
Thereafter

Total future minimum lease payments
Less: present value adjustment

Total operating lease liabilities

Operating leases

1,657 
1,703 
1,634 
1,679 
1,725 
3,131 
11,529 
(2,676)
8,853

$

$

Cash payments included in the measurement of our operating leases were $1,683 thousand for the twelve months ended December 31, 2020.

F-15

 
 
 
 
 
   
 
 
 
 
  
  
 
 
 
 
 
  
  
 
 
  
  
 
 
  
  
 
 
  
  
  
 
 
 
 
 
 
 
 
  
 
 
 
 
  
 
 
 
 
 
 
 
 
   
  
   
  
   
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
 
 
   
  
   
  
   
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
7. Loan Payable

On May 29, 2020, the Company entered into a loan and security agreement (the “Loan Agreement”) with Hercules Capital, Inc. (“Hercules”), under which
Hercules has agreed to lend the Company up to $100.0 million, to be made available in a series of tranches, subject to certain terms and conditions. The
first  tranche  totals  $30.0  million,  of  which  the  Company  received  $20.0  million  at  closing.  Upon  initiation  of  the  phase  3  trial  for  metastatic  colorectal
cancer  and  upon  receiving  FDA  approval  for  small  cell  lung  cancer  (“the  Performance  Milestone”),  the  second  tranche  of  $20.0  million  will  become
available to the Company for drawdown through December 15, 2021. The third tranche of $30.0 million will be available through December 31, 2022. The
fourth tranche of $20.0 million will be available at Hercules’ approval through December 31, 2022. If the Company achieves the Performance Milestone
and does not draw further on the loan, no financial covenants are required. If the Company achieves the Performance Milestone and draws any advance
other than the first tranche, financial covenants will apply. As of December 31, 2020, no financial covenants apply as the Company has only drawn down
on the first tranche.

Amounts borrowed under the Loan Agreement will bear an interest rate equal to the greater of either (i) (a) the prime rate as reported in The Wall Street
Journal, plus (b) 6.40%, and (ii) 9.65%. The Company will make interest only payments through June 1, 2022. The interest only period may be extended
through January 1, 2023 upon satisfaction of the Performance Milestone. Following the interest only period, the Company will repay the principal balance
and interest of the advances in equal monthly installments through June 1, 2024.

The Company may prepay advances under the Loan Agreement, in whole or in part, at any time subject to a prepayment charge equal to (a) 3.0% of the
prepayment amount in the first year; (b) 2.0% of the prepayment amount in the second year; and (c) 1.0% of the prepayment amount in the third year.

Upon prepayment or repayment of all or any of the advances under the Loan Agreement, the Company will pay (in addition to the prepayment charge) an
end of term charge of 6.95% of the aggregate funded amount. With respect to the first tranche, the end of term charge of $2.1 million will be payable upon
any prepayment or repayment. To the extent that the Company is provided additional advances under the Loan Agreement, the 6.95% end of term charge
will be applied to such additional amounts. These amounts will be accrued over the term of the loan using effective-interest method.

The Loan Agreement is secured by substantially all of the Company’s assets, including intellectual property, subject to certain exemptions. The Company
out-licensed  lerociclib  as  permitted  in  the  Loan  Agreement  and  the  Company  may  out-license  rintodestrant  upon  approval  of  the  licensing  terms  by
Hercules.

The  Company  incurred  financing  expenses  of  $0.4  million  related  to  the  Loan  Agreement  which  are  recorded  as  debt  issuance  costs  and  as  a  direct
reduction to long-term debt on the Company’s balance sheet. Additionally, the Company is treating $0.2 million of the upfront facility fee that related to the
initial $20.0 million drawn as a debt discount and treating it in the same way as debt issuance costs. The remainder of the facility fee is related to future
undrawn tranches and is accounted for as a deferred financing charge.

Upon issuance, the first tranche was recorded as a liability with an initial carrying value of $19.4 million, net of debt discount and debt issuance costs. The
initial  carrying  value  will  be  accreted  to  the  repayment  amount,  which  includes  the  outstanding  principal  plus  the  end  of  term  charge,  through  interest
expense using the effective-interest method over the term of the debt. During the twelve months ended December 31, 2020, the Company recognized $1.8
million  of  interest  expense  related  to  the  Loan  Agreement,  which  is  reflected  in  other  income  (expense),  net  on  the  unaudited  condensed  statements  of
operations.

As of December 31, 2020 the future principal payments due under the Loan Agreement, excluding interest, are as follows:

2021
2022
2023
2024
Total principal outstanding
End of term charge
Unamortized debt issuance costs
Total

F-16

Amount

— 
4,631 
9,972 
5,397 
20,000 
395 
(502)
19,893

 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
8. Stockholders’ Equity

Common stock

The Company’s common stock has a par value of $0.0001 per share and consists of 120,000,000 authorized shares as of December 31, 2020 and 2019,
respectively.  Holders of common stock are entitled to one vote per share and are entitled to receive dividends, as if and when declared by the Company’s
Board of Directors.

The Company has reserved authorized shares of common stock for future issuance at December 31, 2020 and December 31, 2019 as follows:

Common stock options outstanding
Options available for grant under Equity Incentive Plans

December 31,
2020

December 31,
2019

6,644,780     
932,051     
7,576,831     

5,744,036 
938,738 
6,682,774

Preferred stock

Upon completion of the IPO, all outstanding preferred stock was automatically converted into 18,933,053 shares of common stock.  The Company is also
authorized  to  issue  5,000,000  shares  of  undesignated  preferred  stock  in  one  or  more  series.   As  December  31,  2020,  no  shares  of  preferred  stock  were
issued or outstanding.

9. Stock-Based Compensation

2011 Equity Incentive Plan

In March 2011, the Company adopted the 2011 Equity Incentive Plan (the “Plan”).  As amended, 4,400,640 shares of common stock were reserved for
issuance under the 2011 Plan.  Eligible plan participants included employees, directors, officers, consultants and advisors of the Company. The 2011 plan
permitted the granting of incentive stock options, nonqualified stock options and other stock- based awards. In connection with the adoption of the 2017
Plan (as defined below), the 2011 Plan was terminated and no further awards will be made under the 2011 Plan.

2017 Equity Incentive Plan

In  May  2017,  the  Company  adopted  the  2017  Equity  Incentive  Plan  (the  “2017  Plan”).  The  2017  Plan  provided  for  the  direct  award  or  sale  of  the
Company’s  common  stock  and  for  the  grant  of  up  to  1,932,000  stock  options  to  employees,  directors,  officers,  consultants  and  advisors  of  the
Company.  The 2017 Plan provides for the grant of incentive stock options, non-statutory stock options or restricted stock. Effective January 1, 2018, and in
accordance with the “evergreen” provision of the 2017 plan, an additional 1,066,692 shares were made available for issuance. Effective January 1, 2019,
and in accordance with the “evergreen” provision of the 2017 plan, an additional 1,096,553 shares were made available for issuance. Effective January 1,
2020, and in accordance with the “evergreen” provision of the 2017 plan, an additional 1,096,553 shares were made available for issuance.

Under both the 2011 Plan and the 2017 Plan, options to purchase the Company’s common stock may be granted at a price no less than the fair market value
of a share of common stock on the date of grant.  The fair value shall be the closing sales price for a share as quoted on any established securities exchange
for such grant date or the last preceding date for which such quotation exists.  Vesting terms of options issued are determined by the Board of Directors or
Compensation Committee of the Board.  The Company’s stock options vest based on terms in the stock option agreements.  Stock options have a maximum
term of ten years.

As of December 31, 2020, there were a total of 932,051 shares of common stock available for future issuance under the 2017 Plan.

F-17

 
 
 
 
 
 
   
 
 
 
 
 
   
 
 
 
   
   
 
   
 
 
 
 
Stock-based Compensation

During the years ended December 31, 2020, 2019 and 2018, the Company recorded employee share-based compensation expense of $18,770, $16,351, and
$8,157,  respectively.  The  Company  recorded  non-employee  share-based  compensation  expense  of  $0,  $98,  and  $2,068  during  the  years  ended
December 31, 2020, 2019 and 2018, respectively.  Total share-based compensation expense included in the statements of operations is as follows:

Research and development
General and administrative

Total stock-based compensation expense

2020

Year Ended December 31,
2019
in thousands

2018

 $

 $

6,902 
11,868 
18,770 

 $

 $

6,261 
10,188 
16,449 

 $

 $

5,218 
5,007 
10,225

The  fair  value  of  each  option  grant  is  estimated  on  the  grant  date  using  the  Black-Scholes  option-pricing  model,  using  the  following  weighted  average
assumptions:

Expected volatility
Weighted-average risk free rate
Dividend yield
Expected term (in years)
Weighted-average grant-date fair value per share

2020

74.8 - 81.0%
0.3-1.7%
—%
6.02
12.17

  $

Year Ended December 31,
2019

74.2 - 82.1%
1.4 - 2.6%
—%
6.02
14.94

  $

    $

2018

74.9 - 86.5%
2.3 - 3.0%
—%
6.04
26.42

The expected term of stock options represents the weighted-average period the stock options are expected to remain outstanding and is based on the option
vesting term, contractual terms and industry peers as the Company did not have sufficient historical information to develop reasonable expectations about
future exercise patterns and post-vesting employment termination behavior.

The expected stock price volatility assumptions for the Company’s stock options were determined by examining the historical volatilities for industry peers
as the Company does not have sufficient history to estimate volatility using only its common stock. In 2019, the Company began incorporating its historical
stock  price  in  conjunction  with  selected  similar  publicly  traded  companies.  The  Company  plans  to  continue  to  use  the  guideline  peer  group  volatility
information until the historical volatility of its common stock is sufficient to measure expected volatility for future option grants.

The risk-free interest rate assumption at the date of grant is based on the U.S. Treasury instruments whose term was consistent with the expected term of
the Company’s stock options.

The expected dividend assumption is based on the Company’s history and expectation of dividend payouts.

Stock option activity during 2020 is as follows:

Weighted average

Options
outstanding

Weighted
average
exercise
price

Remaining
contractual
for
life (Years)

Balance as of December 31, 2019

Cancelled
Granted
Exercised
Balance as of December 31, 2020

Exercisable at December 31, 2020
Vested at December 31, 2020 and expected to vest

5,744,036    $

(635,797)   $
2,039,037    $
(502,496)   $
6,644,780    $

3,542,190    $
6,644,780    $

16.88     

30.94     
18.32     
4.59     
16.91     

12.94     
16.91     

F-18

Aggregate
intrinsic
value
(in thousands)  
72,251 

7.5    $

7.3    $

6.0    $
7.3    $

35,464 

31,686 
35,464

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
   
 
 
 
 
   
 
 
 
 
   
 
 
 
 
 
 
 
 
 
   
 
 
   
 
 
 
 
 
   
   
 
   
 
 
 
 
 
 
   
   
 
 
 
 
 
   
   
 
 
 
 
 
   
   
   
 
 
 
 
 
   
 
 
   
 
 
   
   
   
      
  
   
      
  
   
      
  
   
   
   
 
 
As of December 31, 2020, there was $38,834 of total unrecognized share-based compensation costs, which is expected to be recognized over a weighted-
average period of 2.42 years.

Prior to our initial public offering, the fair value of our common shares underlying our stock options was estimated on each grant date by our board of
directors.  In  order  to  determine  the  fair  value  of  our  common  shares  underlying  granted  stock  options,  our  board  of  directors  considered,  among  other
things,  timely  valuations  of  our  common  shares  prepared  by  an  unrelated  third-party  valuation  firm  in  accordance  with  the  guidance  provided  by  the
American Institute of Certified Public Accountants Practice Guide, Valuation of Privately-Held-Company Equity Securities Issued as Compensation.

Since the IPO, the board of directors has determined the fair value of each common share underlying share-based awards based on the closing price of the
common shares as reported by Nasdaq on the date of grant.

10. License Revenue

ARC License Agreement

On May 22, 2020, the Company entered into an exclusive license agreement with ARC Therapeutics, LLC (“ARC”), a company primarily owned by a
related party, whereby the Company granted to ARC an exclusive, worldwide, royalty-bearing license, with the right to sublicense, solely to make, have
made, use, sell, offer for sale, import, export, and commercialize products related to its cyclin dependent kinase 2 (“CDK2”) inhibitor compounds. At close,
the  Company  received  consideration  in  the  form  of  an  upfront  payment  of  $1.0  million  and  an  equity  interest  in  ARC  equal  to  10%  of  its  issued  and
outstanding units valued at $1.1 million. In addition, the Company may receive a future development milestone payment totaling $2.0 million and royalty
payments in the mid-single digits based on net sales of the licensed compound after commercialization. The Company has right of first negotiation to re-
acquire these assets.

The Company assessed the license agreement in accordance with ASC 606 and identified one performance obligation in the contract, which is the transfer
of the license, as ARC can benefit from the license using its own resources. The Company recognized $2.1 million in license revenue consisting of the
upfront payment and the 10% equity interest in ARC upon the effective date as the Company determined the license was a right to use the intellectual
property and the Company had provided all necessary information to ARC to benefit from the license.

The Company considers the future potential development milestones and sales-based royalties to be variable consideration. The development milestone is
excluded  from  the  transaction  price  because  it  determined  the  payment  to  be  fully  constrained  under  ASC  606  due  to  the  inherent  uncertainty  in  the
achievement of such milestone due to factors outside of the Company’s control. As sales-based royalties are all related to the license of the intellectual
property, the Company will recognize revenue in the period when subsequent sales are made pursuant to the sales-based royalty exception. The Company
will re-evaluate the transaction price in each reporting period and as uncertain events are resolved or other changes in circumstances occur.

Genor License Agreement

On  June  15,  2020,  the  Company  entered  into  an  exclusive  license  agreement  with  Genor  Biopharma  Co.  Inc.  (“Genor”)  for  the  development  and
commercialization of lerociclib in the Asia-Pacific region, excluding Japan (the “Genor Territory”). Under the license agreement, the Company granted to
Genor an exclusive, royalty-bearing, non-transferable license, with the right to grant sublicenses, to develop, obtain, hold and maintain regulatory approvals
for, and commercialize lerociclib, in the Genor Territory.

Under  the  license  agreement,  Genor  agreed  to  pay  the  Company  a  non-refundable,  upfront  cash  payment  of  $6.0  million  with  the  potential  to  pay  an
additional $40.0 million upon reaching certain development and commercial milestones. In addition, Genor will pay the Company tiered royalties ranging
from high single to low double-digits based on annual net sales of lerociclib in the Genor Territory. The upfront cash payment was received in July 2020. In
September 2020, the Company transferred to Genor the related technology and know-how that is necessary to develop, seek regulatory approval for, and
commercialize  lerociclib  in  the  Genor  Territory.  Genor  will  be  responsible  for  the  development  of  the  product  in  the  Genor  Territory  and  will  be
responsible, at its sole cost, for obtaining supply of lerociclib to meet its development, regulatory approval, and commercialization obligations under the
agreement.

The  Company  assessed  the  license  agreement  in  accordance  with  ASC  606  and  identified  the  following  promises  under  the  contract:  (i)  to  transfer  the
license, (ii) technology transfer and the transfer of related know-how to occur within 60 days of the effective date of the license agreement, and (iii) the sale
and  delivery  of  certain  existing  inventory  specified  in  the  agreement.  The  Company  assessed  the  promised  goods  and  services  to  determine  if  they  are
distinct. Based on this assessment, the Company determined that Genor cannot benefit from the license separate from the technology transfer and related
know-how  as  they  are  highly  interrelated  and  therefore  not  distinct.  Accordingly,  the  transfer  of  the  license  and  the  related  technology  and  know-how
represent one combined performance obligation.

F-19

 
 
 
 
 
 
In accordance with ASC 606, the Company determined the transaction price at contract inception. The Company considers the future potential development
and sales milestones, as well as the sales-based royalties to be variable consideration. The Company excluded the regulatory-based development and sales
milestones from the transaction price because it determined such payments to be fully constrained under ASC 606 due to the inherent uncertainty in the
achievement of such milestone payments and high susceptibility to factors outside our control. As the sales-based royalties are all related to the license of
the intellectual property, the Company will recognize revenue in the period when subsequent sales are made pursuant to the sales-based royalty exception.
The Company will re-evaluate the transaction price in each reporting period and as uncertain events are resolved or other changes in circumstances occur.
Based on the foregoing, the Company determined that the $6.0 million non-refundable, upfront payment and the $0.6 million owed upon the delivery of
existing inventory constituted the entirety of consideration to be included in the transaction price.

The Company then allocated the transaction price to the performance obligations based on the relative stand-alone selling price of each distinct obligation.
The  Company  determined  the  stand-alone  selling  prices  to  equal  the  amounts  paid  for  each  performance  obligation.  Revenue  is  recognized  for  each
performance obligation based at a point in time in which control has been transferred. The performance obligation for the transfer of the license and related
technology and know-how does not occur until the delivery of the related know-how has been satisfied. This delivery occurred in September 2020 at which
point $6.0 million was recognized as revenue. The delivery of existing inventory occurred in the fourth quarter of 2020 at which point $0.6 million was
recognized as revenue.

EQRx License Agreement

On July 22, 2020, the Company entered into an exclusive license agreement with EQRx, Inc. (“EQRx”) for the development and commercialization of
lerociclib  in  the  U.S.,  Europe,  Japan  and  all  other  global  markets,  excluding  the  Asia-Pacific  region  (except  Japan)  (the  “EQRx  Territory”).  Under  the
license agreement, the Company granted to EQRx an exclusive, royalty-bearing, non-transferable license, with the right to grant sublicenses, to develop,
obtain, hold and maintain regulatory approvals for, and commercialize lerociclib in the EQRx Territory.

Under  the  license  agreement,  EQRx  agreed  to  pay  the  Company  a  non-refundable,  upfront  cash  payment  of  $20.0  million  with  the  potential  to  pay  an
additional $290.0 million upon reaching certain development and commercial milestones. In addition, EQRx will pay the Company tiered royalties ranging
from mid-single digits to mid-teens based on annual net sales of lerociclib in the EQRx Territory. The upfront cash payment was received in August 2020.
In September 2020, the Company transferred to EQRx the related technology and know-how that is necessary to develop, seek regulatory approval for, and
commercialize lerociclib in the EQRx Territory. EQRx will be responsible for the development of the product in the EQRx Territory. The Company will
continue until completion, as the clinical trial sponsor, its two primary clinical trials at EQRx’s sole cost and expense. EQRx will reimburse the Company
for all of its out-of-pocket costs incurred after the effective date of the license agreement in connection with these clinical trials. The Company will invoice
EQRx within 30 days following the end of the quarter, and EQRx will pay within 30 days after its receipt of such invoice.

The  Company  assessed  the  license  agreement  in  accordance  with  ASC  606  and  identified  the  following  promises  under  the  contract:  (i)  to  transfer  the
license,  (ii)  technology  transfer  and  the  transfer  of  related  know-how  to  occur  within  60  days  of  the  effective  date  of  the  license  agreement,  (iii)  the
Company’s continuation as clinical trial sponsor for two primary clinical trials, and (iv) the sale and delivery of certain existing inventory specified in the
agreement. The Company assessed the promised goods and services to determine if they are distinct. Based on this assessment, the Company determined
that EQRx cannot benefit from the license separate from the technology transfer and related know-how as they are highly interrelated and therefore not
distinct. Accordingly, the transfer of the license and the related technology and know-how represent one combined performance obligation.

In accordance with ASC 606, the Company determined the transaction price at contract inception. The Company considers the future potential development
and sales milestones, as well as the sales-based royalties to be variable consideration. The Company excluded the regulatory-based development and sales
milestones from the transaction price because it determined such payments to be fully constrained under ASC 606 due to the inherent uncertainty in the
achievement of such milestone payments and high susceptibility to factors outside our control. As the sales-based royalties are all related to the license of
the intellectual property, the Company will recognize revenue in the period when subsequent sales are made pursuant to the sales-based royalty exception.
We concluded that the reimbursement of costs incurred for the two primary clinical trials qualifies for the practical expedient under ASC 606, which allows
the Company to recognize revenue in the amount for which we have a right to invoice if our right to consideration is an amount that corresponds directly to
the value of performance completed to date. We, therefore, will not allocate that transaction price to the performance obligations. The Company will re-
evaluate  the  transaction  price  in  each  reporting  period  and  as  uncertain  events  are  resolved  or  other  changes  in  circumstances  occur.  Based  on  the
foregoing, the Company determined that the $20.0 million non-refundable, upfront payment and the $0.7 million owed upon delivery of existing inventory
constituted the entirety of consideration to be included in the transaction price.

The Company then allocated the transaction price to the performance obligations based on the relative stand-alone selling price of each distinct obligation.
The Company determined the stand-alone selling prices to equal the amounts paid for each performance obligation. Revenue is recognized for the transfer
of the license and the related technology and know-how and delivery of existing

F-20

 
inventory performance obligations based at a point in time in which control has been transferred. The performance obligation for the transfer of the license
and  the  related  technology  and  know-how  does  not  occur  until  the  delivery  of  the  related  technology  and  know-how  has  been  satisfied.  This  delivery
occurred in September 2020 at which point $20.0 million was recognized as revenue. Revenue is recognized for the reimbursement of costs associated with
the two primary clinical trials based on the amount to be invoiced to EQRx for work completed from the effective date of the license agreement through
December  31,  2020.  During  the  twelve-months  ended  December  31,  2020,  the  Company  recognized  revenue  of  $1.3  million  associated  with  this
performance obligation, of which we have invoiced and received payment for $0.2 million. As of December 31, 2020, the remaining $1.1 million has not
been invoiced and a contract asset for this amount was recognized on the balance sheet. The delivery of existing inventory occurred in the fourth quarter of
2020 at which point $0.7 million was recognized as revenue.

Simcere License Agreement

On August 3, 2020, the Company entered into an exclusive license agreement with Nanjing Simcere Dongyuan Pharmaceutical Co., Ltd (“Simcere”) for
the development and commercialization of trilaciclib in all indications in Greater China (mainland China, Hong Kong, Macau, and Taiwan) (the “Simcere
Territory”). Under the license agreement, the Company granted to Simcere an exclusive, royalty-bearing, non-transferable license, with the right to grant
sublicenses, to develop, obtain, hold and maintain regulatory approvals for, and commercialize trilaciclib in the Simcere Territory.

Under the license agreement, Simcere agreed to pay the Company a non-refundable, upfront cash payment of $14.0 million with the potential to pay an
additional $156.0 million upon reaching certain development and commercial milestones. In addition, Simcere will pay the Company tiered low double-
digit royalties on annual net sales of trilaciclib in the Simcere Territory. The upfront cash payment of $14.0 million (less applicable withholding taxes of
$1.4 million) was received in September 2020. In return, the Company will furnish to Simcere the related technology and know-how that is necessary to
develop,  seek  regulatory  approval  for,  and  commercialize  trilaciclib  in  the  Simcere  Territory.  Simcere  will  be  responsible  for  all  development  and
commercialization costs in its territory and may be able to participate in global clinical trials as agreed upon by the companies. No plans have currently
been  established  for  any  combined  participation  in  global  clinical  trials,  however,  each  company  will  be  responsible  for  the  associated  costs  in  their
respective territories. The license agreement also provides for the companies to enter into a separate supply agreement which shall be entered into by the
companies following the effective date of the license agreement. The supply agreement was executed in January 2021.

The  Company  assessed  the  license  agreement  in  accordance  with  ASC  606  and  identified  the  following  promises  under  the  contract:  (i)  to  transfer  the
license,  (ii)  technology  transfer  and  the  transfer  of  related  know-how  to  occur  promptly  following  the  effective  date  of  the  license  agreement,  (iii)
participation in the joint steering committee (“JSC”), and (iv) participation in the joint development committee (“JDC”). The Company determined that
Simcere cannot benefit from the license separate from the technology transfer and related technology and know-how as they are highly interrelated and
therefore not distinct. Accordingly, the transfer of the license and the related technology and know-how were combined as a single performance obligation.
The Company assessed the participation on the JSC and the JDC and concluded that the promises are immaterial in the context of the license agreement
and therefore are excluded as performance obligations.

The  Company  assessed  the  supply  agreement  to  determine  whether  it  is  a  distinct  performance  obligation.  The  license  agreement  provides  for  the
companies  to  enter  into  a  supply  agreement  following  the  effective  date  of  the  license  agreement.  Simcere  may  notify  the  Company  of  its  desire  to
manufacture, or have manufactured using a third-party CMO, supply of trilaciclib at which point the related manufacturing know-how will be transferred to
Simcere  at  its  sole  cost  and  expense.  Based  on  the  foregoing,  the  supply  agreement  is  considered  an  option  and  was  assessed  to  determine  whether  a
material right exists. The Company determined that the negotiated price for performing services under a supply agreement are at standalone selling prices,
and as such these services would not be provided at a significant or incremental discount and is not considered a material right.

In accordance with ASC 606, the Company determined the transaction price at contract inception. The Company considers the future potential development
and sales milestones, as well as the sales-based royalties to be variable consideration. The Company excluded the regulatory-based development and sales
milestones from the transaction price because it determined such payments to be fully constrained under ASC 606 due to the inherent uncertainty in the
achievement of such milestone payments and high susceptibility to factors outside our control. As the sales-based royalties are all related to the license of
the intellectual property, the Company will recognize revenue in the period when subsequent sales are made pursuant to the sales-based royalty exception.
The Company will re-evaluate the transaction price in each reporting period and as uncertain events are resolved or other changes in circumstances occur.
Based on the foregoing, the Company determined that the $14.0 million non-refundable, upfront payment constituted the entirety of consideration to be
included in the transaction price.

As there is one combined performance obligation, the Company allocated the entirety of the transaction price to the one performance obligation. Revenue is
recognized based at a point in time in which control has been transferred. The performance obligation for the transfer of the license and related technology
and know-how does not occur until the delivery of the related technology and know-how has been satisfied. This delivery occurred in December 2020 at
which point $14.0 million was recognized as revenue.

F-21

 
 
11. Net Loss per Common Share

Basic  net  loss  per  common  share  is  computed  using  the  weighted  average  number  of  common  shares  outstanding  during  the  period  including  nominal
issuances of common stock warrants. Diluted net loss per common share is computed using the sum of the weighted average number of common shares
outstanding during the period and, if dilutive, the weighted average number of potential shares of common stock, including the assumed exercise of stock
options, stock warrants and unvested restricted common stock. For the years ended December 31, 2020, 2019 and 2018, the following potentially dilutive
securities have been excluded from the computations of diluted weighted-average shares outstanding because the effect would be anti-dilutive:

Stock options issued and outstanding

Amounts in the table above reflect the common stock equivalents of the noted instruments.

2020

Year Ended December 31,
2019

2018

6,576,688   
6,576,688   

5,443,730   
5,443,730   

4,318,731 
4,318,731

12. Income Taxes

Income  taxes  are  accounted  for  using  the  asset  and  liability  method.  Deferred  tax  assets  and  liabilities  are  recognized  for  the  future  tax  consequences
attributable to temporary differences between the financial statements carrying amounts of assets and liabilities and their respective tax bases, operating
loss  carryforwards,  and  tax  credit  carryforwards.  Deferred  tax  assets  and  liabilities  are  measured  using  enacted  tax  rates  expected  to  apply  to  taxable
income  in  the  years  in  which  those  temporary  differences  are  expected  to  be  recovered  or  settled.  The  effect  on  deferred  tax  assets  and  liabilities  of  a
change in tax rates is recognized in income in the period that includes the enactment date.

In  accordance  with  FASB  ASC  740,  Accounting for Income Taxes,  the  Company  reflects  in  the  financial  statements  the  benefit  of  positions  taken  in  a
previously filed tax return or expected to be taken in a future tax return only when it is considered ‘more-likely-than-not’ that the position taken will be
sustained by a taxing authority. As of December 31, 2020 and 2019, the Company had no unrecognized income tax benefits and correspondingly there is no
impact  on  the  Company’s  effective  income  tax  rate  associated  with  these  items.  The  Company’s  policy  for  recording  interest  and  penalties  relating  to
uncertain income tax positions is to record them as a component of income tax expense in the accompanying statements of operations. As of December 31,
2020 and 2019, the Company had no such accruals.

The components of income tax expense (benefit) attributable to continuing operations are as follows:

Current Expense:

Federal
State
Foreign

Deferred Expense:

Federal
State
Foreign

Year ended December 31,
2019

2020

2018

  $

—    $
—     
1,410     
1,410     

—    $
—     
—     
—     

—     

—     

—     
1,410    $

  $

—     
—    $

— 
— 
— 
— 

— 

— 
—

F-22

 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
   
      
      
  
   
   
 
   
   
      
      
  
   
   
      
      
  
   
 
 
 
The  differences  between  the  company’s  income  tax  expense  attributable  to  continuing  operations  and  the  expense  computed  at  the  21%  U.S.  statutory
income tax rate were as follows (in thousands):

Year ended December 31,
2019

2020

2018

Federal income tax benefit at statutory rate:
Increase (reduction) in income tax resulting from:

State Income Taxes
Increase in Valuation Allowance
Write off Sec. 382 Limited Carryforwards
Stock Compensation
Research and Development Credit
Foreign Withholding Tax
Other

  $

(20,547)   $

(25,714)   $

(17,910)

(1,779)    
23,782     
—     
1,341     
(3,091)    
1,410     
294     
1,410    $

(2,369)    
29,499     
1,858     
461     
(3,529)    
—     
(206)    
—    $

(1,518)
26,614 
— 
(3,011)
(4,187)
— 
12 
— 

  $

The tax effects of temporary differences and operating loss carryforwards that gave rise to significant portions of the deferred tax assets and deferred tax
liabilities were as follows at December 31, 2020 and 2019 (in thousands):

Deferred tax assets

Accrued expenses
Operating lease liabilities
Stock compensation
Capitalized patents and licenses
R&D credits
Net operating loss carryforwards
Other

Deferred tax assets

Deferred tax liabilities

Operating lease assets
Other

Deferred tax liabilities
Valuation allowance
Net deferred tax assets

Year ended December 31,

2020

2019

  $

2,863    $
2,034   
7,147   
-   
13,965   
85,842   
20   
111,871   

(1,844)  
(245)  
(2,089)  
(109,782)  

  $

—    $

2,205 
2,348 
4,865 
2,156 
10,874 
65,869 
6 
88,323 

(2,263)
(60)
(2,323)
(86,000)
— 

At December 31, 2020 and December 31, 2019, the Company evaluated all significant available positive and negative evidence, including the existence of
losses in recent years and management’s forecast of future taxable income, and, as a result, determined it was more likely than not that federal and state
deferred tax assets, including benefits related to net operating loss carryforwards, would not be realized. The valuation allowance was increased from $86.0
million  at  December  31,  2019  to  $109.8  million  at  December  31,  2020.  The  increase  in  valuation  allowance  was  due  primarily  to  the  increase  in  net
operating loss carryforwards and income tax credits.

The table below summarizes changes in the deferred tax valuation allowance (in thousands):

Balance at beginning of year
Charges to costs and expenses
Write-offs
Balance at end of year

  $

2020

2019

2018

86,000    $
25,170   
(1,388)  
109,782   

56,501    $
31,357   
(1,858)  
86,000   

29,887 
26,614 
— 
56,501 

At December 31, 2020, the Company has federal net operating loss carryforwards (“NOLs”) of approximately $373.1 million, which are available to offset
future  taxable  income.  Of  the  $373.1  million  available,  $95.4  million  will  begin  to  expire  in  2029.  The  remaining  $277.6  million  has  an  indefinite
carryforward period. Under the Tax Cuts and Jobs Act (“Tax Act”), federal NOLs arising

F-23

 
 
 
 
 
 
 
 
   
   
 
   
      
      
  
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
   
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
after December 31, 2017 may be carried forward indefinitely. However, for NOLs arising after December 31, 2017, NOL carryforwards will be limited to
80% of taxable income. The Company’s NOLs generated in 2017 and in prior years will not be subject to the 80% limitation under the Tax Act. In addition,
the Company has state net operating loss carryforwards totaling approximately $379.8 million, which are available to offset future state taxable income.
State net operating losses begin to expire in 2024. Because the Company has incurred cumulative net operating losses since inception, all tax years remain
open to examination by U.S. federal and state income tax authorities. As of December 31, 2020, the Company also had federal research and development
(R&D) credit carryforwards of approximately $14.0 million available to offset future income tax which begin to expire in 2035.
In  accordance  with  FASB  ASC  740,  Accounting for Income Taxes,  the  Company  reflects  in  the  financial  statements  the  benefit  of  positions  taken  in  a
previously filed tax return or expected to be taken in a future tax return only when it is considered ‘more-likely-than-not’ that the position taken will be
sustained by a taxing authority. As of December 31, 2020 and 2019, the Company had no unrecognized income tax benefits and correspondingly there is no
impact  on  the  Company’s  effective  income  tax  rate  associated  with  these  items.  The  Company’s  policy  for  recording  interest  and  penalties  relating  to
uncertain income tax positions is to record them as a component of income tax expense in the accompanying statements of income. As of December 31,
2020 and 2019, the Company had no such accruals.

Section 382 Limitation

The Company’s ability to utilize its net operating loss and research and development credit carryforwards may be substantially limited due to ownership
changes that may have occurred or that could occur in the future, as required by Section 382 of the Internal Revenue Code of 1986, as amended (the Code),
as well as similar state provisions. These ownership changes may limit the amount of NOL and R&D credit carryforwards that can be utilized annually to
offset future taxable income and tax, respectively. In general, an “ownership change,” as defined by Section 382 of the Code, results from a transaction or
series of transactions over a three-year period resulting in an ownership change of more than 50 percent of the outstanding stock of a company by certain
stockholders or public groups.

In April 2019, the Company completed an evaluation study as to whether an “ownership change” had occurred and determined that the limitation would be
approximately $8.0 million on federal net operating loss carryforwards, $1.2 million on state net operating loss carryforwards, and $0.1 million on R&D
tax credit carryforwards. The carryforward amounts reported above have already been reduced for these limitations. The Company continues to maintain a
valuation allowance on the remaining NOLs as it believes that it is more likely than not that all of the deferred tax asset associated with the NOLs will not
be realized regardless of whether an “ownership change” has occurred.

13. Related Party Transactions

The Company paid approximately $6 thousand to a member of the Board of Directors for scientific advisory services outside of his role on the board of
directors for each of the years ended December 31, 2020, 2019 and 2018.

The Company granted an exclusive, worldwide, royalty-bearing license of its CDK2 inhibitor compounds to ARC Therapeutics, LLC (“ARC”), a company
primarily  owned  by  a  related  party,  in  exchange  for  cash  and  equity  in  ARC  with  a  total  value  of  approximately  $2.1  million,  which  resulted  in  the
recognition of related party revenue as discussed in Note 10.

The  Company  entered  into  a  senior  advisor  agreement  with  John  E.  (Jack)  Bailey,  Jr.,  a  member  of  the  Board  of  Directors,  effective  October  1,  2020.
Pursuant  to  the  terms  of  the  agreement,  Mr.  Bailey  received  $60,000  per  month  for  his  services  through  December  31,  2020.  Mr.  Bailey  became  the
Company’s President and Chief Executive Officer effective January 1, 2021.

The Company entered into a senior advisor agreement on September 29, 2020 with Mark A. Velleca, M.D., Ph.D., a member of the Board of Directors,
with  an  effective  date  of  January  1,  2021.  Pursuant  to  the  terms  of  the  agreement,  Dr.  Velleca  will  receive  $200,000  annually,  paid  in  equal  quarterly
installments, for his services. The senior advisory agreement will expire on December 31, 2023.

14. Subsequent Events (Unaudited)

From January 14, 2021 through February 9, 2021, the Company utilized a Sales Agreement for “at the market offerings” with Cowen to sell 3,513,027
shares of common stock, resulting in $86.4 million in net proceeds. As of February 9, 2021, there is no remaining availability under the sales agreement
with Cowen.

On February 23, 2021, the Board of Directors adopted the G1 Therapeutics, Inc. Inducement Equity Incentive Plan (the “Inducement Plan”), to be effective
immediately,  pursuant  to  which  we  reserved  500,000  shares  of  our  common  stock  to  be  used  exclusively  for  grants  of  awards  (as  defined  below)  to
individuals who were not previously employees or directors of G1, or who are returning to employment following a bona fide period of non-employment
with G1, in each case as an inducement material to the individual’s entry into employment with G1 within the meaning of Rule 5635(c)(4) of the Nasdaq
Listing  Rules.  In  accordance  with  Rule  5635(c)(4),  we  did  not  seek  approval  of  the  Inducement  Plan  by  our  shareholders.  An  “award”  is  any  right  to
receive shares of our

F-24

 
 
common stock or other property pursuant to the Inducement Plan, including non-statutory stock options and restricted stock unit awards. In addition, the
Compensation Committee adopted forms of agreements for use with the Inducement Plan.

Complete copies of the Inducement Plan, along with the form of Stock Option Agreement under the Inducement Plan, and the form of Restricted Stock
Unit Agreement under the Inducement Plan, is filed herewith as Exhibit [10.7], and is incorporated herein by reference. The above summary of the terms of
the Inducement Plan and the forms of agreement does not purport to be complete and is qualified in its entirety by reference to such exhibits.

15. Quarterly Results of Operations (Unaudited)

The following table contains quarterly financial information for 2020 and 2019. The Company believes that the following information reflects all normal
recurring adjustments necessary for a fair statement of the information for the periods presented. The operating results for any quarter are not necessarily
indicative of results for any future period.

Three Months Ended

(unaudited)

(in thousands, except share and per share amounts)

March 31,

June 30,

  September 30,  

  December 31,

2020

2020

2020

2020

License Revenue
Total operating expenses
Loss from operations
Total other income (expense), net
Loss before income taxes
Income tax expense
Net loss

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

License Revenue
Total operating expenses
Loss from operations
Total other income (expense), net
Loss before income taxes
Income tax expense
Net loss

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

F-25

$

$

-    $

31,821   
(31,821)  
798   
(31,023)  
—   
(31,023)   $

(0.82)   $

$
  37,659,722   

2,140    $
32,962   
(30,822)  
(388)  
(31,210)  
—   
(31,210)   $

(0.83)   $

26,599    $
36,344   
(9,745)  
(998)  
(10,743)  
931   
(11,674)   $

16,546 
40,634 
(24,088)
(780)
(24,868)
479 
(25,347)

(0.31)   $

(0.67)
  38,053,609 

  37,786,208   

  38,009,204   

March 31,

June 30,

  September 30,  

  December 31,

2019

2019

2019

2019

-    $

-    $

-    $

$

$

25,881   
(25,881)  
1,929   
(23,952)  
—   
(23,952)   $

32,583   
(32,583)  
1,893   
(30,690)  
—   
(30,690)   $

(0.82)   $

34,024   
(34,024)  
1,660   
(32,364)  
—   
(32,364)   $

(0.86)   $

- 
36,553 
(36,553)
1,112 
(35,441)
— 
(35,441)

(0.64)   $

$
  37,396,980   

  37,470,926   

  37,540,380   

(0.94)
  37,586,218

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
 
 
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
DESCRIPTION OF THE REGISTRANT’S SECURITIES
REGISTERED PURSUANT TO SECTION 12 OF THE
SECURITIES EXCHANGE ACT OF 1934

Exhibit 4.2

General

The following description of our capital stock and provisions of our amended and restated certificate of incorporation and amended and restated by-laws
are summaries of material terms and provisions and are qualified by reference to our amended and restated certificate of incorporation and amended and
restated by-laws, copies of which have been filed with the SEC as exhibits to the registration statement of which this prospectus is a part.

Our authorized capital stock consists of 120,000,000 shares of common stock, par value $0.0001 per share, and 5,000,000 shares of preferred stock, par
value $0.0001 per share, all of which are undesignated. Only share of our common stock are and no shares of preferred stock outstanding.

Common stock

We are authorized to issue one class of common stock. Holders of our common stock are entitled to one vote for each share of common stock held of record
for the election of directors and on all matters submitted to a vote of stockholders. Holders of our common stock are entitled to receive dividends ratably, if
any, as may be declared by our board of directors out of legally available funds, subject to any preferential dividend rights of any preferred stock then
outstanding. Upon our dissolution, liquidation or winding up, holders of our common stock are entitled to share ratably in our net assets legally available
after the payment of all our debts and other liabilities, subject to the preferential rights of any preferred stock then outstanding. Holders of our common
stock have no preemptive, subscription, redemption or conversion rights. The rights, preferences and privileges of holders of common stock are subject to,
and may be adversely affected by, the rights of the holders of shares of any series of preferred stock that we may designate and issue in the future. Except as
described under the “—Anti-Takeover Effects of Delaware Law, Our Amended and Restated Certificate of Incorporation and Our Amended and Restated
By-Laws” section below, a majority vote of the holders of common stock is generally required to take action under our amended and restated certificate of
incorporation and amended and restated by-laws.

Preferred stock

Our board of directors is authorized, without action by the stockholders, to designate and issue up to an aggregate of 5,000,000 shares of preferred stock in
one or more series. Our board of directors can designate the rights, preferences and privileges of the shares of each series and any of its qualifications,
limitations or restrictions. Our board of directors may authorize the issuance of preferred stock with voting or conversion rights that could adversely affect
the voting power or other rights of the holders of common stock. The issuance of preferred stock, while providing flexibility in connection with possible
future financings and acquisitions and other corporate purposes could, under certain circumstances, have the effect of restricting dividends on our common
stock, diluting the voting power of our common stock, impairing the liquidation rights of our common stock, or delaying, deferring or preventing a

 
 
 
 
 
 
 
 
 
change in control of our company, which might harm the market price of our common stock. See also the “—Anti-Takeover Effects of Delaware Law, Our
Amended and Restated Certificate of Incorporation and Our Amended and Restated By-Laws” section below.

Our board of directors will make any determination to issue such shares based on its judgment as to our company’s best interests and the best interests of
our stockholders. We have no shares of preferred stock outstanding.

Warrants

There are no warrants outstanding.

Anti-takeover effects of Delaware law, our amended and restated certificate of incorporation and our amended and restated by-laws

Our amended and restated certificate of incorporation and amended and restated by-laws include a number of provisions that may have the effect of
encouraging persons considering unsolicited tender offers or other unilateral takeover proposals to negotiate with our board of directors rather than pursue
non-negotiated takeover attempts. These provisions include the items described below.

Board composition and filling vacancies

In accordance with our amended and restated certificate of incorporation, our board of directors is divided into three classes serving three-year terms, with
one class being elected each year. Our amended and restated certificate of incorporation also provides that directors may be removed only for cause and
then only by the affirmative vote of the holders of 75% or more of the shares then entitled to vote at an election of directors. Furthermore, any vacancy on
our board of directors, however occurring, including a vacancy resulting from an increase in the size of our board of directors, may only be filled by the
affirmative vote of a majority of our directors then in office, even if less than a quorum.

No written consent of stockholders

Our amended and restated certificate of incorporation provides that all stockholder actions are required to be taken by a vote of the stockholders at an
annual or special meeting, and that stockholders may not take any action by written consent in lieu of a meeting.

Meetings of stockholders

Our amended and restated by-laws provide that only a majority of the members of our board of directors then in office may call special meetings of
stockholders and only those matters set forth in the notice of the special meeting may be considered or acted upon at a special meeting of stockholders. Our
amended and restated by-laws limit the business that may be conducted at an annual meeting of stockholders to those matters properly brought before the
meeting.

Advance notice requirements

Our amended and restated by-laws establish advance notice procedures with regard to stockholder proposals relating to the nomination of candidates for
election as directors or new business to be brought before meetings of our stockholders. These procedures provide that notice of stockholder proposals must
be timely given in writing to our corporate secretary prior to the meeting at which the action is to be taken. Generally, to be timely, notice must be received
at our principal executive offices not less than 90 days or more than 120 days prior to the first anniversary date of the annual meeting for the preceding
year. The notice must contain certain information specified in the amended and restated by-laws. These provisions may have the effect of precluding the
conduct of certain business at a meeting if the proper procedures are not followed. These provisions may also discourage or deter a potential acquirer from
conducting a solicitation of proxies to elect the acquirer’s own slate of directors or otherwise attempting to obtain control of our company.

Amendment to by-laws and certificate of incorporation

As required by the Delaware General Corporation Law, any amendment of our amended and restated certificate of incorporation must first be approved by
a majority of our board of directors and, if required by law or our amended and restated certificate of incorporation, thereafter be approved by a majority of
the outstanding shares entitled to vote on the amendment, and a majority of the outstanding shares of each class entitled to vote thereon as a class, except
that the amendment of the provisions relating to stockholder action, directors, limitation of liability, exclusive jurisdiction of Delaware Courts and the
amendment of our amended and restated by-laws and amended and restated certificate of incorporation must be approved by not less than 75% of the
outstanding shares entitled to vote on the amendment, and not less than 75% of the outstanding shares of each class entitled to vote thereon as a class. Our
amended and restated by-laws may be amended by the affirmative vote of a majority of the directors then in office, subject to any limitations set forth in the
amended and restated by-laws; and may also be amended by the affirmative vote of at least 75% of the outstanding shares

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
entitled to vote on the amendment, or, if the board of directors recommends that the stockholders approve the amendment, by the affirmative vote of the
majority of the outstanding shares entitled to vote on the amendment, in each case voting together as a single class.

Blank check preferred stock

Our amended and restated certificate of incorporation provides for 5,000,000 authorized shares of preferred stock. The existence of authorized but unissued
shares of preferred stock may enable our board of directors to render more difficult or to discourage an attempt to obtain control of us by means of a
merger, tender offer, proxy contest or otherwise. For example, if in the due exercise of its fiduciary obligations, our board of directors were to determine
that a takeover proposal is not in the best interests of us or our stockholders, our board of directors could cause shares of preferred stock to be issued
without stockholder approval in one or more private offerings or other transactions that might dilute the voting or other rights of the proposed acquirer or
insurgent stockholder or stockholder group. In this regard, our amended and restated certificate of incorporation grants our board of directors broad power
to establish the rights and preferences of authorized and unissued shares of preferred stock. The issuance of shares of preferred stock could decrease the
amount of earnings and assets available for distribution to holders of shares of common stock. The issuance may also adversely affect the rights and
powers, including voting rights, of these holders and may have the effect of delaying, deterring or preventing a change in control of us.

Section 203 of the Delaware General Corporation Law

We are subject to the provisions of Section 203 of the Delaware General Corporation Law. In general, Section 203 prohibits a publicly-held Delaware
corporation from engaging in a “business combination” with an “interested stockholder” for a three-year period following the time that this stockholder
becomes an interested stockholder, unless the business combination is approved in a prescribed manner. A “business combination” includes, among other
things, a merger, asset or stock sale or other transaction resulting in a financial benefit to the interested stockholder. An “interested stockholder” is a person
who, together with affiliates and associates, owns, or did own within three years prior to the determination of interested stockholder status, 15% or more of
the corporation’s voting stock.

Under Section 203, a business combination between a corporation and an interested stockholder is prohibited unless it satisfies one of the following
conditions:

•

•

•

before the stockholder became interested, the board of directors approved either the business combination or the transaction that resulted in the
stockholder becoming an interested stockholder;
upon consummation of the transaction that resulted in the stockholder becoming an interested stockholder, the interested stockholder owned at
least 85% of the voting stock of the corporation outstanding at the time the transaction commenced, excluding for purposes of determining the
voting stock outstanding, shares owned by persons who are directors and also officers, and employee stock plans, in some instances; or
at or after the time the stockholder became interested, the business combination was approved by the board of directors of the corporation and
authorized at an annual or special meeting of the stockholders by the affirmative vote of at least two-thirds of the outstanding voting stock that is
not owned by the interested stockholder.

A Delaware corporation may “opt out” of these provisions with an express provision in its original certificate of incorporation or an express provision in its
amended and restated certificate of incorporation or by-laws resulting from a stockholders’ amendment approved by at least a majority of the outstanding
voting shares. We have not opted out of these provisions. As a result, mergers or other takeover or change in control attempts of us may be discouraged or
prevented.

Exclusive jurisdiction of certain actions

Our amended and restated certificate of incorporation requires, to the fullest extent permitted by law, that derivative actions brought in our name, actions
against our directors, officers and employees for breach of fiduciary duty and other similar actions may be brought only in the Court of Chancery in the
State of Delaware, unless we otherwise consent. Although we believe this provision benefits us by providing increased consistency in the application of
Delaware law in the types of lawsuits to which it applies, the provision may have the effect of discouraging lawsuits against our directors and officers.

Nasdaq Global Select Market Listing

Our common stock is listed on The Nasdaq Global Select Market under the trading symbol “GTHX.”

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
G1 THERAPEUTICS, INC.

2021 INDUCEMENT EQUITY INCENTIVE PLAN

Exhibit 10.7

1.

DEFINITIONS.

Unless  otherwise  specified  or  unless  the  context  otherwise  requires,  the  following  terms,  as  used  in  this  G1

Therapeutics, Inc. 2021 Inducement Equity Incentive Plan, have the following meanings:

Administrator  means  the  Board  of  Directors,  unless  it  has  delegated  power  to  act  on  its  behalf  to  the
Committee, in which case the term “Administrator” means the Committee.

Affiliate means a corporation which, for purposes of Section 424 of the Code, is a parent or subsidiary of the
Company, direct or indirect.

Agreement  means  an  agreement  between  the  Company  and  a  Participant  pertaining  to  a  Stock  Right
delivered pursuant to the Plan in such form as the Administrator shall approve.

Board of Directors means the Board of Directors of the Company.

Cause means, with respect to a Participant (a) dishonesty with respect to the Company or any Affiliate, (b)
insubordination, substantial malfeasance or non‑feasance of duty, (c) unauthorized disclosure of confidential
information,  (d)  breach  by  a  Participant  of  any  provision  of  any  employment,  consulting,  advisory,
nondisclosure,  non-competition  or  similar  agreement  between  the  Participant  and  the  Company  or  any
Affiliate, and (e) conduct substantially prejudicial to the business of the Company or any Affiliate; provided,
however, that any provision in an agreement between a Participant and the Company or an Affiliate, which
contains  a  conflicting  definition  of  Cause  for  termination  and  which  is  in  effect  at  the  time  of  such
termination,  shall  supersede  this  definition  with  respect  to  that  Participant.    The  determination  of  the
Administrator as to the existence of Cause will be conclusive on the Participant and the Company.

Code means the United States Internal Revenue Code of 1986, as amended including any successor statute,
regulation and guidance thereto.

Committee  means  the  committee  of  the  Board  of  Directors,  if  any,  to  which  the  Board  of  Directors  has
delegated power to act under or pursuant to the provisions of the Plan, the composition of which shall at all
times satisfy the provisions of Section 162(m) of the Code.

Common Stock means shares of the Company’s common stock, $0.0001 par value per share.

 
 
 
Company means G1 Therapeutics, Inc., a Delaware corporation.

Director means any member of the Board of Directors.

Disability or Disabled means permanent and total disability as defined in Section 22(e)(3) of the Code.

Employee means any employee of the Company or of an Affiliate (including, without limitation, an employee
who  is  also  serving  as  an  officer  or  director  of  the  Company  or  of  an  Affiliate),  designated  by  the
Administrator to be eligible to be granted one or more Stock Rights under the Plan.

Exchange Act means the United States Securities Exchange Act of 1934, as amended.

Fair Market Value of a Share of Common Stock means:

(1)

If  the  Common  Stock  is  listed  on  a  national  securities  exchange  or  traded  in  the
over‑the‑counter market and sales prices are regularly reported for the Common Stock, the closing or, if not
applicable, the last price of the Common Stock on the composite tape or other comparable reporting system
for  the  trading  day  on  the  applicable  date  and  if  such  applicable  date  is  not  a  trading  day,  the  last  market
trading day prior to such date;

(2)

If the Common Stock is not traded on a national securities exchange but is traded on the
over‑the‑counter market, if sales prices are not regularly reported for the Common Stock for the trading day
referred to in clause (1), and if bid and asked prices for the Common Stock are regularly reported, the mean
between  the  bid  and  the  asked  price  for  the  Common  Stock  at  the  close  of  trading  in  the  over-the-counter
market for the trading day on which Common Stock was traded on the applicable date and if such applicable
date is not a trading day, the last market trading day prior to such date; and

(3)

If the Common Stock is neither listed on a national securities exchange nor traded in the
over‑the‑counter market, such value as the Administrator, in good faith, shall determine in compliance with
applicable laws.

Non‑Qualified Option means an option which is not intended to qualify as an incentive stock option under
Section 422 of the Code.

Option means a Non‑Qualified Option granted under the Plan.

Participant means an Employee or a Director to whom one or more Stock Rights are granted under the Plan.
As used herein, “Participant” shall include the Participant’s “Survivors” where the context requires.

Plan means this G1 Therapeutics, Inc. 2021 Inducement Equity Incentive Plan.

2

Securities Act means the United States Securities Act of 1933, as amended.

Shares means shares of the Common Stock as to which Stock Rights have been or may be granted under the
Plan or any shares of capital stock into which the Shares are changed or for which they are exchanged within
the provisions of Paragraph 3 of the Plan.  The Shares issued under the Plan may be authorized and unissued
shares or shares held by the Company in its treasury, or both.

Stock-Based Award  means  a  grant  by  the  Company  under  the  Plan  of  an  equity  award  or  an  equity  based
award which is not an Option or a Stock Grant.

Stock Grant means a grant by the Company of Shares under the Plan.

Stock Right means a right to Shares or the value of Shares of the Company granted pursuant to the Plan, in
the form of a Non-Qualified Option, a Stock Grant or a Stock-Based Award.

Survivor means a deceased Participant’s legal representatives and/or any person or persons who acquired the
Participant’s rights to a Stock Right by will or by the laws of descent and distribution.

2.

PURPOSES OF THE PLAN.

The Plan is intended to encourage ownership of Shares by Employees and Directors of the Company in order to attract
and  retain  such  people,  to  induce  them  to  work  for  the  benefit  of  the  Company  or  of  an  Affiliate  and  to  provide  additional
incentive for them to promote the success of the Company or of an Affiliate.  The Company intends that the Plan be reserved for
persons  to  whom  the  Company  may  issue  securities  without  stockholder  approval  as  an  inducement  pursuant  to  Listing  Rule
5635(c)(4) of the corporate governance rules of the Nasdaq Stock Market.  The Plan provides for the granting and awarding of
Non‑Qualified Options, Stock Grants and Stock-Based Awards.

3.

SHARES SUBJECT TO THE PLAN.

(a)

The number of Shares which may be issued from time to time pursuant to this Plan shall be Five Hundred
Thousand (500,000) or the equivalent of such number of Shares after the Administrator, in its sole discretion, has interpreted the
effect of any stock split, stock dividend, combination, recapitalization or similar transaction in accordance with Paragraph 24 of
this Plan.

(b)

If an Option ceases to be “outstanding,” in whole or in part (other than by exercise), or if the Company shall
reacquire (at not more than its original issuance price) any Shares issued pursuant to a Stock Grant or Stock-Based Award, or if
any Stock Right expires or is forfeited, cancelled, or otherwise terminated or results in any Shares not being issued, the unissued
or reacquired Shares which were subject to such Stock Right shall again be available for issuance from time to time pursuant to
this Plan.  Notwithstanding the foregoing, if a Stock Right is exercised, in whole or in part, by tender of Shares or if the Company
or an Affiliate’s tax withholding obligation is satisfied by withholding Shares, the number of Shares deemed to have

3

 
 
been issued under the Plan for purposes of the limitation set forth in Paragraph 3(a) above shall be the number of Shares that
were subject to the Stock Right or portion thereof, and not the net number of Shares actually issued.  

4.

ADMINISTRATION OF THE PLAN.

The Administrator of the Plan will be the Board of Directors, except to the extent the Board of Directors delegates its
authority to the Committee, in which case the Committee shall be the Administrator.  Subject to the provisions of the Plan, the
Administrator is authorized to:

(a)

Interpret the provisions of the Plan and all Stock Rights and to make all rules and determinations which it

deems necessary or advisable for the administration of the Plan;

(b)

(c)

(d)

Determine which Employees and Directors shall be granted Stock Rights;

Determine the number of Shares for which a Stock Right or Stock Rights shall be granted;

Specify the terms and conditions upon which a Stock Right or Stock Rights may be granted;

(e)

Amend  any  term  or  condition  of  any  outstanding  Stock  Right,  other  than  reducing  the  exercise  price  or
purchase  price  or  extending  the  expiration  date  of  an  Option,  provided  that  (i)  such  term  or  condition  as  amended  is  not
prohibited  by  the  Plan;  (ii)  any  such  amendment  shall  not  impair  the  rights  of  a  Participant  under  any  Stock  Right  previously
granted without such Participant’s consent or in the event of death of the Participant the Participant’s Survivors; and (iii) any such
amendment  shall  be  made  only  after  the  Administrator  determines  whether  such  amendment  would  cause  any  adverse  tax
consequences to the Participant, including, but not limited to, pursuant to Section 409A of the Code;

(f)

Buy out for a payment in cash or Shares, a Stock Right previously granted, awarded and/or cancel any such
Stock Right and grant in substitution therefor other Stock Rights, covering the same or a different number of Shares and having
an  exercise  price  or  purchase  price  per  share  which  may  be  lower  or  higher  than  the  exercise  price  or  purchase  price  of  the
cancelled Stock Right, based on such terms and conditions as the Administrator shall establish and the Participant shall accept;
and

(g)

Adopt any sub-plans applicable to residents of any specified jurisdiction as it deems necessary or appropriate
in order to comply with or take advantage of any tax or other laws applicable to the Company, any Affiliate or to Participants or
to otherwise facilitate the administration of the Plan, which sub-plans may include additional restrictions or conditions applicable
to Stock Rights or Shares issuable pursuant to a Stock Right;

provided, however, that all such interpretations, rules, determinations, terms and conditions shall be made and prescribed in the
context of not causing any adverse tax consequences under Section 409A of the Code.  Subject to the foregoing, the interpretation
and construction by the Administrator of any provisions of the Plan or of any Stock Right granted under it shall be final, unless
otherwise determined by the Board of Directors, if the Administrator is the Committee.  In

4

 
addition, if the Administrator is the Committee, the Board of Directors may take any action under the Plan that would otherwise
be the responsibility of the Committee.

To the extent permitted under applicable law, the Board of Directors or the Committee may allocate all or any portion
of its responsibilities and powers to any one or more of its members and may delegate all or any portion of its responsibilities and
powers to any other person selected by it. The Board of Directors or the Committee may revoke any such allocation or delegation
at any time. Notwithstanding the foregoing, only the Board of Directors or the Committee shall be authorized to grant a Stock
Right to any Director or to any “officer” of the Company as defined by Rule 16a-1 under the Exchange Act.

5.

ELIGIBILITY FOR PARTICIPATION.

The  Administrator  will,  in  its  sole  discretion,  name  the  Participants  in  the  Plan;  provided,  however,  that  each
Participant must be an Employee or a Director at the time a Stock Right is granted and a person to whom the Company may issue
securities without stockholder approval as an inducement pursuant to Listing Rule 5635(c)(4) of the corporate governance rules
of the Nasdaq Stock Market.  Notwithstanding the foregoing, the Administrator may authorize the grant of a Stock Right to a
person  not  then  an  Employee  or  a  Director;  provided,  however,  that  the  actual  grant  of  such  Stock  Right  shall  be  conditioned
upon such person becoming eligible to become a Participant at or prior to the time of the execution of the Agreement evidencing
such  Stock  Right.    Non‑Qualified  Options,  Stock  Grants  and  Stock-Based  Awards  may  be  granted  to  any  Employee  or  any
Director.  The granting of any Stock Right to any individual shall neither entitle that individual to, nor disqualify him or her from,
participation  in  any  other  grant  of  Stock  Rights  or  any  grant  under  any  other  benefit  plan  established  by  the  Company  or  any
Affiliate for Employees or Directors.

6.

TERMS AND CONDITIONS OF OPTIONS.

Each Option shall be set forth in writing in an Option Agreement, duly executed by the Company and, to the extent
required by law or requested by the Company, by the Participant.  The Administrator may provide that Options be granted subject
to such terms and conditions, consistent with the terms and conditions specifically required under this Plan, as the Administrator
may deem appropriate.  The Option Agreements shall be subject to at least the following terms and conditions:

(a)

Each Non‑Qualified Option shall be subject to the terms and conditions which the Administrator determines
to  be  appropriate  and  in  the  best  interest  of  the  Company,  subject  to  the  following  minimum  standards  for  any  such
Non‑Qualified Option:

(i)

Exercise  Price:  Each  Option  Agreement  shall  state  the  exercise  price  (per  share)  of  the  Shares
covered by each Option, which exercise price shall be determined by the Administrator and shall be
at  least  equal  to  the  Fair  Market  Value  per  share  of  Common  Stock  on  the  date  of  grant  of  the
Option.

(ii)

Number of Shares: Each Option Agreement shall state the number of Shares to which it pertains.

5

 
 
 
 
(iii)

(iv)

Vesting:  Each Option Agreement shall state the date or dates on which it first is exercisable and the
date after which it may no longer be exercised, and  may  provide  that  the  Option  rights  accrue  or
become  exercisable  in  installments  over  a  period  of  months  or  years,  or  upon  the  occurrence  of
certain performance conditions or the attainment of stated goals or events.

Additional  Conditions:    Exercise  of  any  Option  may  be  conditioned  upon  the  Participant’s
execution of a Share purchase agreement in a form satisfactory to the Administrator providing for
certain protections for the Company and its other shareholders, including requirements that:

A.

B.

The Participant’s or the Participant’s Survivors’ right to sell or transfer the Shares may be
restricted; and

The  Participant  or  the  Participant’s  Survivors  may  be  required  to  execute  letters  of
investment intent and must also acknowledge that the Shares will bear legends noting any
applicable restrictions.

(v)

Term of Option:  Each Option shall terminate not more than ten years from the date of the grant or
at such earlier time as the Option Agreement may provide.

7.

TERMS AND CONDITIONS OF STOCK GRANTS.

Each Stock Grant to a Participant shall state the principal terms in an Agreement duly executed by the Company and, to
the extent required by law or requested by the Company, by the Participant.  The Agreement shall be in a form approved by the
Administrator  and  shall  contain  terms  and  conditions  which  the  Administrator  determines  to  be  appropriate  and  in  the  best
interest of the Company, subject to the following minimum standards:

(a)

Each Agreement shall state the purchase price per share, if any, of the Shares covered by each Stock Grant,
which purchase price shall be determined by the Administrator but shall not be less than the minimum consideration required by
the Delaware General Corporation Law, if any, on the date of the grant of the Stock Grant;

(b)

(c)

Each Agreement shall state the number of Shares to which the Stock Grant pertains; and

Each  Agreement  shall  include  the  terms  of  any  right  of  the  Company  to  restrict  or  reacquire  the  Shares

subject to the Stock Grant.

8.

TERMS AND CONDITIONS OF OTHER STOCK-BASED AWARDS.  

The Administrator shall have the right to grant other Stock-Based Awards based upon the Common Stock having such
terms and conditions as the Administrator may determine, including, without limitation, the grant of Shares based upon certain
conditions,  the  grant  of  securities  convertible  into  Shares  and  the  grant  of  stock  appreciation  rights,  phantom  stock  awards  or
stock units.  The principal terms of each Stock-Based Award shall be set forth in an Agreement, duly

6

 
 
 
 
 
 
 
executed by the Company and, to the extent required by law or requested by the Company, by the Participant.  The Agreement
shall be in a form approved by the Administrator and shall contain terms and conditions which the Administrator determines to
be appropriate and in the best interest of the Company.  Each Agreement shall include the terms of any right of the Company
including the right to terminate the Stock-Based Award without the issuance of Shares, the terms of any vesting conditions  or
events  upon  which  Shares  shall  be  issued.  Under  no  circumstances  may  the  Agreement  covering  stock  appreciation  rights  (a)
have an exercise price (per share) that is less than the Fair Market Value per share of Common Stock on the date of grant or (b)
expire more than ten years following the date of grant.

The Company intends that the Plan and any Stock-Based Awards granted hereunder be exempt from the application of
Section 409A of the Code or meet the requirements of paragraphs (2), (3) and (4) of subsection (a) of Section 409A of the Code,
to the extent applicable, and be operated in accordance with Section 409A so that any compensation deferred under any Stock-
Based  Award  (and  applicable  investment  earnings)  shall  not  be  included  in  income  under  Section  409A  of  the  Code.    Any
ambiguities in the Plan shall be construed to effect the intent as described in this Paragraph 8.

9.

EXERCISE OF OPTIONS AND ISSUE OF SHARES.

An  Option  (or  any  part  or  installment  thereof)  shall  be  exercised  by  giving  written  notice  to  the  Company  or  its
designee (in a form acceptable to the Administrator, which may include electronic notice), together with provision for payment of
the aggregate exercise price in accordance with this Paragraph for the Shares as to which the Option is being exercised, and upon
compliance with any other condition(s) set forth in the Option Agreement.  Such notice shall be signed by the person exercising
the Option (which signature may be provided electronically in a form acceptable to the Administrator), shall state the number of
Shares with respect to which the Option is being exercised and shall contain any representation required by the Plan or the Option
Agreement.  Payment of the exercise price for the Shares as to which such Option is being exercised shall be made (a) in United
States dollars in cash or by check; or (b) at the discretion of the Administrator, through delivery of shares of Common Stock held
for at least six months (if required to avoid negative accounting treatment) having a Fair Market Value equal as of the date of the
exercise to the aggregate cash exercise price for the number of Shares as to which the Option is being exercised; or (c) at the
discretion of the Administrator, by having the Company retain from the Shares otherwise issuable upon exercise of the Option, a
number of Shares having a Fair Market Value equal as of the date of exercise to the aggregate exercise price for the number of
Shares  as  to  which  the  Option  is  being  exercised;  or  (d)  at  the  discretion  of  the  Administrator,  in  accordance  with  a  cashless
exercise program established with a securities brokerage firm, and approved by the Administrator; or (e) at the discretion of the
Administrator, by any combination of (a), (b), (c) and (d) above; or (f) at the discretion of the Administrator, by payment of such
other lawful consideration as the Administrator may determine.

The  Company  shall  then  reasonably  promptly  deliver  the  Shares  as  to  which  such  Option  was  exercised  to  the
Participant (or to the Participant’s Survivors, as the case may be).  In determining what constitutes “reasonably promptly,” it is
expressly understood that the issuance and delivery of the Shares may be delayed by the Company in order to comply with any
law or regulation (including, without limitation, state securities or “blue sky” laws) which requires the

7

 
Company to take any action with respect to the Shares prior to their issuance.  The Shares shall, upon delivery, be fully paid, non-
assessable Shares.

10.

PAYMENT  IN  CONNECTION  WITH  THE  ISSUANCE  OF  STOCK  GRANTS  AND  STOCK-BASED
AWARDS AND ISSUE OF SHARES.

Any Stock Grant or Stock-Based Award requiring payment of a purchase price for the Shares as to which such Stock
Grant  or  Stock-Based  Award  is  being  granted  shall  be  made  (a)  in  United  States  dollars  in  cash  or  by  check;  or  (b)  at  the
discretion of the Administrator, through delivery of shares of Common Stock held for at least six months (if required to avoid
negative accounting treatment) and having a Fair Market Value equal as of the date of payment to the purchase price of the Stock
Grant or Stock-Based Award; or (c) at the discretion of the Administrator, by any combination of (a) and (b) above; or (d) at the
discretion of the Administrator, by payment of such other lawful consideration as the Administrator may determine.

The Company shall, when required by the applicable Agreement, reasonably promptly deliver the Shares as to which
such  Stock  Grant  or  Stock-Based  Award  was  made  to  the  Participant  (or  to  the  Participant’s  Survivors,  as  the  case  may  be),
subject to any escrow provision set forth in the applicable Agreement.  In determining what constitutes “reasonably promptly,” it
is expressly understood that the issuance and delivery of the Shares may be delayed by the Company in order to comply with any
law  or  regulation  (including,  without  limitation,  state  securities  or  “blue  sky”  laws)  which  requires  the  Company  to  take  any
action with respect to the Shares prior to their issuance.

11.

RIGHTS AS A SHAREHOLDER.

No Participant to whom a Stock Right has been granted shall have rights as a shareholder with respect to any Shares
covered by such Stock Right except after due exercise of an Option or issuance of Shares as set forth in any Agreement, tender of
the aggregate exercise or purchase price, if any, for the Shares being purchased and registration of the Shares in the Company’s
share register in the name of the Participant.

12.

ASSIGNABILITY AND TRANSFERABILITY OF STOCK RIGHTS.

By its terms, a Stock Right granted to a Participant shall not be transferable by the Participant other than (i) by will or
by the laws of descent and distribution, or (ii) as approved by the Administrator in its discretion and set forth in the applicable
Agreement  provided  that  no  Stock  Right  may  be  transferred  by  a  Participant  for  value.   The  designation  of  a  beneficiary  of  a
Stock Right by a Participant, with the prior approval of the Administrator and in such form as the Administrator shall prescribe,
shall not be deemed a transfer prohibited by this Paragraph.  Except as provided above during the Participant’s lifetime a Stock
Right  shall  only  be  exercisable  by  or  issued  to  such  Participant  (or  his  or  her  legal  representative)  and  shall  not  be  assigned,
pledged or hypothecated in any way (whether by operation of law or otherwise) and shall not be subject to execution, attachment
or similar process.  Any attempted transfer, assignment, pledge, hypothecation or other disposition of any Stock Right or of any
rights granted thereunder contrary to the provisions of this Plan, or the levy of any attachment or similar process upon a Stock
Right, shall be null and void.

8

 
 
 
13.

EFFECT ON OPTIONS OF TERMINATION OF SERVICE OTHER THAN FOR CAUSE OR DEATH OR
DISABILITY.

Except as otherwise provided in a Participant’s Option Agreement, in the event of a termination of service (whether as
an Employee or Director) with the Company or an Affiliate before the Participant has exercised an Option, the following rules
apply:

(a)

A Participant who ceases to be an Employee or a Director (for any reason other than termination for Cause,
Disability, or death for which events there are special rules in Paragraphs 14, 15 and 16, respectively), may exercise any Option
granted to him or her to the extent that the Option is exercisable on the date of such termination of service, but only within such
term as the Administrator has designated in a Participant’s Option Agreement.

(b)

The provisions of this Paragraph, and not the provisions of Paragraph 15 or 16, shall apply to a Participant
who  subsequently  becomes  Disabled  or  dies  after  the  termination  of  employment  or  director  status;  provided,  however,  in  the
case  of  a  Participant’s  Disability  or  death  within  three  months  after  the  termination  of  employment  or  director  status,  the
Participant or the Participant’s Survivors may exercise the Option within one year after the date of the Participant’s termination of
service, but in no event after the date of expiration of the term of the Option.

(c)

Notwithstanding anything herein to the contrary, if subsequent to a Participant’s termination, but prior to the
exercise  of  an  Option,  the  Administrator  determines  that,  either  prior  or  subsequent  to  the  Participant’s  termination,  the
Participant  engaged  in  conduct  which  would  constitute  Cause,  then  such  Participant  shall  forthwith  cease  to  have  any  right  to
exercise any Option.

(d)

A Participant to whom an Option has been granted under the Plan who is absent from the Company or an
Affiliate because of temporary disability (any disability other than a Disability as defined in Paragraph 1 hereof), or who is on
leave of absence for any purpose, shall not, during the period of any such absence, be deemed, by virtue of such absence alone, to
have  terminated  such  Participant’s  employment  or  director  status  with  the  Company  or  with  an  Affiliate,  except  as  the
Administrator may otherwise expressly provide.

(e)

Except as required by law or as set forth in a Participant’s Option Agreement, Options granted under the Plan
shall  not  be  affected  by  any  change  of  a  Participant’s  status  within  or  among  the  Company  and  any  Affiliates,  so  long  as  the
Participant continues to be an Employee or Director.

14.

EFFECT ON OPTIONS OF TERMINATION OF SERVICE FOR CAUSE.

Except as otherwise provided in a Participant’s Option Agreement, the following rules apply if the Participant’s service
(whether as an Employee or Director) with the Company or an Affiliate is terminated for Cause prior to the time that all his or her
outstanding Options have been exercised:

(a)

All  outstanding  and  unexercised  Options  as  of  the  time  the  Participant  is  notified  his  or  her  service  is

terminated for Cause will immediately be forfeited.

9

 
 
(b)

Cause is not limited to events which have occurred prior to a Participant’s termination of service, nor is it
necessary that the Administrator’s finding of Cause occur prior to termination.  If the Administrator determines, subsequent to a
Participant’s  termination  of  service  but  prior  to  the  exercise  of  an  Option,  that  either  prior  or  subsequent  to  the  Participant’s
termination the Participant engaged in conduct which would constitute Cause, then the right to exercise any Option is forfeited.

15.

EFFECT ON OPTIONS OF TERMINATION OF SERVICE FOR DISABILITY.

Except as otherwise provided in a Participant’s Option Agreement:

(a)

A  Participant  who  ceases  to  be  an  Employee  or  Director  by  reason  of  Disability  may  exercise  any  Option
granted to such Participant to the extent that the Option has become exercisable but has not been exercised on the date of the
Participant’s termination of service due to Disability;

(b)

In the event rights to exercise the Option accrue periodically, a Disabled Participant may exercise any Option
granted to such Participant to the extent of a pro rata portion through the date of the Participant’s termination of service due to
Disability  of  any  additional  vesting  rights  that  would  have  accrued  on  the  next  vesting  date  had  the  Participant  not  become
Disabled.  The proration shall be based upon the number of days accrued in the current vesting period prior to the date of the
Participant’s termination of service due to Disability;

(c)

A Disabled Participant may exercise the Option only within the period ending one year after the date of the
Participant’s termination of service due to Disability, notwithstanding that the Participant might have been able to exercise the
Option  as  to  some  or  all  of  the  Shares  on  a  later  date  if  the  Participant  had  not  been  terminated  due  to  Disability  and  had
continued to be an Employee, Director or, if earlier, within the originally prescribed term of the Option; and

(d)

The Administrator shall make the determination both of whether Disability has occurred and the date of its
occurrence  (unless  a  procedure  for  such  determination  is  set  forth  in  another  agreement  between  the  Company  and  such
Participant, in which case such procedure shall be used for such determination).  If requested, the Participant shall be examined
by a physician selected or approved by the Administrator, the cost of which examination shall be paid for by the Company.

10

 
16.

EFFECT ON OPTIONS OF DEATH WHILE AN EMPLOYEE OR DIRECTOR.

Except as otherwise provided in a Participant’s Option Agreement:

(a)

In the event of the death of a Participant while the Participant is an Employee or Director, such Option may
be exercised by the Participant’s Survivors to the extent that the Option has become exercisable but has not been exercised on the
date of death;

(b)

In the event rights to exercise the Option accrue periodically, a deceased Participant’s Survivors may exercise
any Option granted to such Participant to the extent of a pro rata portion through the date of death of any additional vesting rights
that would have accrued on the next vesting date had the Participant not died.  The proration shall be based upon the number of
days accrued in the current vesting period prior to the Participant’s date of death; and

(c)

If the Participant’s Survivors wish to exercise the Option, they must take all necessary steps to exercise the
Option  within  one  year  after  the  date  of  death  of  such  Participant,  notwithstanding  that  the  decedent  might  have  been  able  to
exercise the Option as to some or all of the Shares on a later date if he or she had not died and had continued to be an Employee
or Director or, if earlier, within the originally prescribed term of the Option.

17.

EFFECT ON STOCK GRANTS AND STOCK-BASED AWARDS OF TERMINATION OF SERVICE.

In the event of a termination of service (whether as an Employee or Director) with the Company or an Affiliate for any
reason before the Participant has accepted a Stock Grant or a Stock-Based Award and paid the purchase price, if required, such
grant shall terminate.

For  purposes  of  this  Paragraph  17  and  Paragraph  18  below,  a  Participant  to  whom  a  Stock  Grant  or  a  Stock-Based
Award  has  been  issued  under  the  Plan  who  is  absent  from  work  with  the  Company  or  with  an  Affiliate  because  of  temporary
disability (any disability other than a Disability as defined in Paragraph 1 hereof), or who is on leave of absence for any purpose,
shall  not,  during  the  period  of  any  such  absence,  be  deemed,  by  virtue  of  such  absence  alone,  to  have  terminated  such
Participant’s employment or director status with the Company or with an Affiliate, except as the Administrator may otherwise
expressly provide.

In  addition,  for  purposes  of  this  Paragraph  17  and  Paragraph  18  below,  any  change  of  employment  or  other  service
within or among the Company and any Affiliates shall not be treated as a termination of employment or director status so long as
the Participant continues to be an Employee or Director.

18.

EFFECT  ON  STOCK  GRANTS  AND  STOCK-BASED  AWARDS  OF  TERMINATION  OF  SERVICE
OTHER THAN FOR CAUSE, DEATH OR DISABILITY.

Except  as  otherwise  provided  in  a  Participant’s  Agreement,  in  the  event  of  a  termination  of  service  for  any  reason
(whether as an Employee or Director), other than termination for Cause, death or Disability for which there are special rules in
Paragraphs  19,  20  and  21  below,  before  all  forfeiture  provisions  or  Company  rights  of  repurchase  shall  have  lapsed,  then  the
Company shall

11

 
 
 
have  the  right  to  cancel  or  repurchase  that  number  of  Shares  subject  to  a  Stock  Grant  or  Stock-Based  Award  as  to  which  the
Company’s forfeiture or repurchase rights have not lapsed.

19.

EFFECT ON STOCK GRANTS AND STOCK-BASED AWARDS OF TERMINATION OF SERVICE FOR
CAUSE.

Except  as  otherwise  provided  in  a  Participant’s  Agreement,  the  following  rules  apply  if  the  Participant’s  service

(whether as an Employee or Director) with the Company or an Affiliate is terminated for Cause:

(a)

All Shares subject to any Stock Grant or Stock-Based Award that remain subject to forfeiture provisions or as
to which the Company shall have a repurchase right shall be immediately forfeited to the Company as of the time the Participant
is notified his or her service is terminated for Cause.

(b)

Cause is not limited to events which have occurred prior to a Participant’s termination of service, nor is it
necessary that the Administrator’s finding of Cause occur prior to termination.  If the Administrator determines, subsequent to a
Participant’s  termination  of  service,  that  either  prior  or  subsequent  to  the  Participant’s  termination  the  Participant  engaged  in
conduct which would constitute Cause, then all Shares subject to any Stock Grant or Stock-Based Award that remained subject to
forfeiture provisions or as to which the Company had a repurchase right on the date of termination shall be immediately forfeited
to the Company.

20.

EFFECT ON STOCK GRANTS AND STOCK-BASED AWARDS OF TERMINATION OF SERVICE FOR
DISABILITY.

Except as otherwise provided in a Participant’s Agreement, the following rules apply if a Participant ceases to be an
Employee or Director by reason of Disability:  to the extent the forfeiture provisions or the Company’s rights of repurchase have
not lapsed on the date of Disability, they shall be exercisable; provided, however, that in the event such forfeiture provisions or
rights  of  repurchase  lapse  periodically,  such  provisions  or  rights  shall  lapse  to  the  extent  of  a  pro  rata  portion  of  the  Shares
subject to such Stock Grant or Stock-Based Award through the date of Disability as would have lapsed had the Participant not
become Disabled.  The proration shall be based upon the number of days accrued prior to the date of Disability.

The  Administrator  shall  make  the  determination  both  as  to  whether  Disability  has  occurred  and  the  date  of  its
occurrence  (unless  a  procedure  for  such  determination  is  set  forth  in  another  agreement  between  the  Company  and  such
Participant, in which case such procedure shall be used for such determination).  If requested, the Participant shall be examined
by a physician selected or approved by the Administrator, the cost of which examination shall be paid for by the Company.

21.

EFFECT  ON  STOCK  GRANTS  AND  STOCK-BASED  AWARDS  OF  DEATH  WHILE  AN  EMPLOYEE
OR DIRECTOR.

Except  as  otherwise  provided  in  a  Participant’s  Agreement,  the  following  rules  apply  in  the  event  of  the  death  of  a
Participant while the Participant is an Employee or Director:  to the extent the forfeiture provisions or the Company’s rights of
repurchase have not lapsed on the date of death, they shall be exercisable; provided, however, that in the event such forfeiture
provisions

12

 
 
 
or rights of repurchase lapse periodically, such provisions or rights shall lapse to the extent of a pro rata portion of the Shares
subject  to  such  Stock  Grant  or  Stock-Based  Award  through  the  date  of  death  as  would  have  lapsed  had  the  Participant  not
died.  The proration shall be based upon the number of days accrued prior to the Participant’s date of death.

22.

PURCHASE FOR INVESTMENT.

Unless the offering and sale of the Shares shall have been effectively registered under the Securities Act, the Company

shall be under no obligation to issue Shares under the Plan unless and until the following conditions have been fulfilled:

(a)

The person who receives a Stock Right shall warrant to the Company, prior to the receipt of Shares, that such
person is acquiring such Shares for his or her own account, for investment, and not with a view to, or for sale in connection with,
the  distribution  of  any  such  Shares,  in  which  event  the  person  acquiring  such  Shares  shall  be  bound  by  the  provisions  of  the
following legend (or a legend in substantially similar form) which shall be endorsed upon the certificate evidencing the Shares
issued pursuant to such exercise or such grant:

“The shares represented by this certificate have been taken for investment and they may not be sold
or  otherwise  transferred  by  any  person,  including  a  pledgee,  unless  (1)  either  (a)  a  Registration
Statement  with  respect  to  such  shares  shall  be  effective  under  the  Securities  Act  of  1933,  as
amended, or (b) the Company shall have received an opinion of counsel satisfactory to it that an
exemption  from  registration  under  such  Act  is  then  available,  and  (2)  there  shall  have  been
compliance with all applicable state securities laws.”

(b)

At the discretion of the Administrator, the Company shall have received an opinion of its counsel that the

Shares may be issued in compliance with the Securities Act without registration thereunder.

23.

DISSOLUTION OR LIQUIDATION OF THE COMPANY.

Upon the dissolution or liquidation of the Company, all Options granted under this Plan which as of such date shall not
have been exercised and all Stock Grants and Stock-Based Awards which have not been accepted, to the extent required under the
applicable  Agreement,  will  terminate  and  become  null  and  void;  provided,  however,  that  if  the  rights  of  a  Participant  or  a
Participant’s  Survivors  have  not  otherwise  terminated  and  expired,  the  Participant  or  the  Participant’s  Survivors  will  have  the
right immediately prior to such dissolution or liquidation to exercise or accept any Stock Right to the extent that the Stock Right
is exercisable or subject to acceptance as of the date immediately prior to such dissolution or liquidation.  Upon the dissolution or
liquidation of the Company, any outstanding Stock-Based Awards shall immediately terminate unless otherwise determined by
the Administrator or specifically provided in the applicable Agreement.

13

 
 
24.

ADJUSTMENTS.

Upon the occurrence of any of the following events, a Participant’s rights with respect to any Stock Right granted to
him  or  her  hereunder  shall  be  adjusted  as  hereinafter  provided,  unless  otherwise  specifically  provided  in  a  Participant’s
Agreement:

(a)

Stock Dividends and Stock Splits.  If (i) the shares of Common Stock shall be subdivided or combined into a
greater  or  smaller  number  of  shares  or  if  the  Company  shall  issue  any  shares  of  Common  Stock  as  a  stock  dividend  on  its
outstanding Common Stock, or (ii) additional shares or new or different shares or other securities of the Company or other non-
cash assets are distributed with respect to such shares of Common Stock, each Stock Right and the number of shares of Common
Stock deliverable thereunder shall be appropriately increased or decreased proportionately, and appropriate adjustments shall be
made  including,  in  the  exercise  or  purchase  price  per  share,  to  reflect  such  events.    The  number  of  Shares  subject  to  the
limitations in Paragraphs 3(a) shall also be proportionately adjusted upon the occurrence of such events.

(b)

Corporate Transactions.  If the Company is to be consolidated with or acquired by another entity in a merger,
consolidation, sale of all or substantially all of the Company’s assets or the acquisition of all of the outstanding voting stock of
the Company in a single transaction or a series of related transactions by a single entity other than a transaction to merely change
the  state  of  incorporation  (a  “Corporate  Transaction”),  the  Administrator  or  the  board  of  directors  of  any  entity  assuming  the
obligations  of  the  Company  hereunder  (the  “Successor  Board”),  shall,  as  to  outstanding  Options,  either  (i)  make  appropriate
provision for the continuation of such Options by substituting on an equitable basis for the Shares then subject to such Options
either  the  consideration  payable  with  respect  to  the  outstanding  shares  of  Common  Stock  in  connection  with  the  Corporate
Transaction  or  securities  of  any  successor  or  acquiring  entity;  or  (ii)  upon  written  notice  to  the  Participants,  provide  that  such
Options  must  be  exercised  (either  (A)  to  the  extent  then  exercisable  or,  (B)  at  the  discretion  of  the  Administrator,  any  such
Options being made partially or fully exercisable for purposes of this Subparagraph), within a specified number of days of the
date of such notice, at the end of which period such Options which have not been exercised shall terminate; or (iii) terminate such
Options  in  exchange  for  payment  of  an  amount  equal  to  the  consideration  payable  upon  consummation  of  such  Corporate
Transaction to a holder of the number of shares of Common Stock into which such Option would have been exercisable (either
(A) to the extent then exercisable or, (B) at the discretion of the Administrator, any such Options being made partially or fully
exercisable  for  purposes  of  this  Subparagraph)  less  the  aggregate  exercise  price  thereof.    For  purposes  of  determining  the
payments to be made pursuant to subsection (iii) above, in the case of a Corporate Transaction the consideration for which, in
whole or in part, is other than cash, the consideration other than cash shall be valued at the fair value thereof as determined in
good faith by the Board of Directors.

With respect to outstanding Stock Grants, the Administrator or the Successor Board, shall make appropriate provision
for the continuation of such Stock Grants on the same terms and conditions by substituting on an equitable basis for the Shares
then subject to such Stock Grants either the consideration payable with respect to the outstanding Shares of Common Stock in
connection  with  the  Corporate  Transaction  or  securities  of  any  successor  or  acquiring  entity.    In  lieu  of  the  foregoing,  in
connection  with  any  Corporate  Transaction,  the  Administrator  may  provide  that,  upon  consummation  of  the  Corporate
Transaction, each outstanding Stock Grant shall

14

 
be terminated in exchange for payment of an amount equal to the consideration payable upon consummation of such Corporate
Transaction to a holder of the number of shares of Common Stock comprising such Stock Grant (to the extent such Stock Grant is
no longer subject to any forfeiture or repurchase rights then in effect or, at the discretion of the Administrator, all forfeiture and
repurchase rights being waived upon such Corporate Transaction).

In taking any of the actions permitted under this Paragraph 24(b), the Administrator shall not be obligated by the Plan

to treat all Stock Rights, all Stock Rights held by a Participant, or all Stock Rights of the same type, identically.

(c)

Recapitalization or Reorganization.  In the event of a recapitalization or reorganization of the Company other
than a Corporate Transaction pursuant to which securities of the Company or of another corporation are issued with respect to the
outstanding  shares  of  Common  Stock,  a  Participant  upon  exercising  an  Option  or  accepting  a  Stock  Grant  after  the
recapitalization  or  reorganization  shall  be  entitled  to  receive  for  the  price  paid  upon  such  exercise  or  acceptance  if  any,  the
number of replacement securities which would have been received if such Option had been exercised or Stock Grant accepted
prior to such recapitalization or reorganization.

(d)

Adjustments to Stock-Based Awards.  Upon the happening of any of the events described in Subparagraphs
(a), (b) or (c) above, any outstanding Stock-Based Award shall be appropriately adjusted to reflect the events described in such
Subparagraphs.    The  Administrator  or  the  Successor  Board  shall  determine  the  specific  adjustments  to  be  made  under  this
Paragraph 24, including, but not limited to the effect of any Corporate Transaction and, subject to Paragraph 4, its determination
shall be conclusive.

(e)

Modification of Options.    Notwithstanding the  foregoing,  any  adjustments  made  pursuant  to  Subparagraph
(a),  (b)  or  (c)  above  with  respect  to  Options  shall  be  made  only  after  the  Administrator  determines  whether  such  adjustments
would cause any adverse tax consequences for the holders of Options, including, but not limited to, pursuant to Section 409A of
the Code.  If the Administrator determines that such adjustments made with respect to Options would constitute a modification or
other adverse tax consequence, it may refrain from making such adjustments, unless the holder of an Option specifically agrees in
writing that such adjustment be made and such writing indicates that the holder has full knowledge of the consequences of such
“modification” on his or her income tax treatment with respect to the Option.  

25.

ISSUANCES OF SECURITIES.

Except  as  expressly  provided  herein,  no  issuance  by  the  Company  of  shares  of  stock  of  any  class,  or  securities
convertible into shares of stock of any class, shall affect, and no adjustment by reason thereof shall be made with respect to, the
number  or  price  of  shares  subject  to  Stock  Rights.    Except  as  expressly  provided  herein,  no  adjustments  shall  be  made  for
dividends paid in cash or in property (including without limitation, securities) of the Company prior to any issuance of Shares
pursuant to a Stock Right.

15

 
26.

FRACTIONAL SHARES.

No  fractional  shares  shall  be  issued  under  the  Plan  and  the  person  exercising  a  Stock  Right  shall  receive  from  the

Company cash in lieu of such fractional shares equal to the Fair Market Value thereof.

27.

WITHHOLDING.

In  the  event  that  any  federal,  state,  or  local  income  taxes,  employment  taxes,  Federal  Insurance  Contributions  Act
(“F.I.C.A.”) withholdings or other amounts are required by applicable law or governmental regulation to be withheld from the
Participant’s salary, wages or other remuneration in connection with the issuance of a Stock Right or Shares under the Plan or for
any other reason required by law, the Company may withhold from the Participant’s compensation, if any, or may require that the
Participant advance in cash to the Company, or to any Affiliate of the Company which employs or employed the Participant, the
statutory minimum amount of such withholdings unless a different withholding arrangement, including the use of shares of the
Company’s  Common  Stock  or  a  promissory  note,  is  authorized  by  the  Administrator  (and  permitted  by  law).    For  purposes
hereof, the fair market value of the shares withheld for purposes of payroll withholding shall be determined in the manner set
forth under the definition of Fair Market Value provided in Paragraph 1 above, as of the most recent practicable date prior to the
date of exercise.  If the Fair Market Value of the shares withheld is less than the amount of payroll withholdings required, the
Participant may be required to advance the difference in cash to the Company or the Affiliate employer.  The Administrator in its
discretion may condition the exercise of an Option for less than the then Fair Market Value on the Participant’s payment of such
additional withholding.  

28.

TERMINATION OF THE PLAN.

The  Plan  will  terminate  on  February  23,  2031.    The  Plan  may  be  terminated  at  an  earlier  date  by  vote  of  the
shareholders or the Board of Directors of the Company; provided, however, that any such earlier termination shall not affect any
Agreements executed prior to the effective date of such termination.  Termination of the Plan shall not affect any Stock Rights
theretofore granted.

29.

AMENDMENT OF THE PLAN AND AGREEMENTS.

The  Plan  may  be  amended  by  the  Administrator.  Any  modification  or  amendment  of  the  Plan  shall  not,  without  the
consent of a Participant, adversely affect his or her rights under a Stock Right previously granted to him or her.  With the consent
of  the  Participant  affected,  the  Administrator  may  amend  outstanding  Agreements  in  a  manner  which  may  be  adverse  to  the
Participant but which is not inconsistent with the Plan.  In the discretion of the Administrator, outstanding Agreements may be
amended by the Administrator in a manner which is not adverse to the Participant.    Nothing in this Paragraph 29 shall limit the
Administrator’s authority to take any action permitted pursuant to Paragraph 24.

16

 
 
 
 
30.

EMPLOYMENT OR OTHER RELATIONSHIP.

Nothing in this Plan or any Agreement shall be deemed to prevent the Company or an Affiliate from terminating the
employment  or  director  status  of  a  Participant,  nor  to  prevent  a  Participant  from  terminating  his  or  her  own  employment  or
director status or to give any Participant a right to be retained in employment or other service by the Company or any Affiliate for
any period of time.

31.

SECTION 409A.

If  a  Participant  is  a  “specified  employee”  as  defined  in  Section  409A  of  the  Code  (and  as  applied  according  to
procedures  of  the  Company  and  its  Affiliates)  as  of  his  separation  from  service,  to  the  extent  any  payment  under  this  Plan  or
pursuant  to  the  grant  of  a  Stock-Based  Award  constitutes  deferred  compensation  (after  taking  into  account  any  applicable
exemptions from Section 409A of the Code), and to the extent required by Section 409A of the Code, no payments due under this
Plan or pursuant to a Stock-Based Award may be made until the earlier of: (i) the first day of the seventh month following the
Participant’s separation from service, or (ii) the Participant’s date of death; provided, however, that any payments delayed during
this  six-month  period  shall  be  paid  in  the  aggregate  in  a  lump  sum,  without  interest,  on  the  first  day  of  the  seventh  month
following the Participant’s separation from service.

The  Administrator  shall  administer  the  Plan  with  a  view  toward  ensuring  that  Stock  Rights  under  the  Plan  that  are
subject to Section 409A of the Code comply with the requirements thereof and that Options under the Plan be exempt from the
requirements of Section 409A of the Code, but neither the Administrator nor any member of the Board, nor the Company nor any
of its Affiliates, nor any other person acting hereunder on behalf of the Company, the Administrator or the Board shall be liable
to a Participant or any Survivor by reason of the acceleration of any income, or the imposition of any additional tax or penalty,
with  respect  to  a  Stock  Right,  whether  by  reason  of  a  failure  to  satisfy  the  requirements  of  Section  409A  of  the  Code  or
otherwise.

32.

INDEMNITY.

Neither the Board nor the Administrator, nor any members of either, nor any employees of the Company or any parent,
subsidiary, or other Affiliate, shall be liable for any act, omission, interpretation, construction or determination made in good faith
in connection with their responsibilities with respect to this Plan, and the Company hereby agrees to indemnify the members of
the Board, the members of the Committee, and the employees of the Company and its parent or subsidiaries in respect of any
claim,  loss,  damage,  or  expense  (including  reasonable  counsel  fees)  arising  from  any  such  act,  omission,  interpretation,
construction or determination to the full extent permitted by law.

33.

CLAWBACK.

Notwithstanding  anything  to  the  contrary  contained  in  this  Plan,  the  Company  may  recover  from  a  Participant  any
compensation received from any Stock Right (whether or not settled) or cause a Participant to forfeit any Stock Right (whether or
not vested) in the event that the Company’s Clawback Policy then in effect is triggered.

17

 
 
 
 
34.

GOVERNING LAW.

This Plan shall be construed and enforced in accordance with the law of the State of Delaware.

18

 
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 23.1

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-236229, 333-232106, 333-226701, and 333-
218468) and Form S-3 (No. 333-225678) of G1 Therapeutics, Inc. of our report dated February 24, 2021 relating to the financial statements and the
effectiveness of internal control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP
Raleigh, North Carolina
February 24, 2021

 
 
 
 
 
Exhibit 31.1

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

I, John E. Bailey, Jr., certify that:

1.

2.

3.

4.

I have reviewed this Annual Report on Form 10-K of G1 Therapeutics, Inc.;

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

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

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

(a)

(b)

(c)

(d)

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

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

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

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

5.

The registrant’s other certifying officer(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)

(b)

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

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

 
 
 
 
 
 
 
 
Date: February 24, 2021

By:

/s/ John E. Bailey, Jr.
John E. Bailey, Jr.
President and Chief Executive Officer
(Principal Executive Officer)

 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 31.2

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

I, Jennifer K. Moses, certify that:

1.

2.

3.

4.

I have reviewed this Annual Report on Form 10-K of G1 Therapeutics, Inc.;

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

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

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

(a)

(b)

(c)

(d)

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

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

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

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

5.

The registrant’s other certifying officer(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)

(b)

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

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

 
 
 
 
 
 
 
Date: February 24, 2021

By:

/s/ Jennifer K. Moses
Jennifer K. Moses
Chief Financial Officer
(Principal Financial and Accounting Officer)

 
 
 
 
 
 
 
 
 
 
 
CERTIFICATION UNDER SECTION 906

Exhibit 32.1

Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United

States Code), the undersigned officer of G1 Therapeutics, Inc., a Delaware corporation (the “Company”), does hereby certify, to such
officer’s knowledge, that:

The Annual Report for the year ended December 31, 2020 (the “Form 10-K”) of the Company fully complies with the requirements

of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and the information contained in the Form 10-K fairly presents, in all
material respects, the financial condition and results of operations of the Company.

Date: February 24, 2021

/s/ John E. Bailey, Jr.
John E. Bailey, Jr.

  President and Chief Executive Officer

(Principal Executive Officer)

 
 
 
 
 
 
 
 
 
 
CERTIFICATION UNDER SECTION 906

Exhibit 32.2

Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United

States Code), the undersigned officer of G1 Therapeutics, Inc., a Delaware corporation (the “Company”), does hereby certify, to such
officer’s knowledge, that:

The Annual Report for the year ended December 31, 2020 (the “Form 10-K”) of the Company fully complies with the requirements

of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and the information contained in the Form 10-K fairly presents, in all
material respects, the financial condition and results of operations of the Company.

Date: February 24, 2021

/s/ Jennifer K. Moses
Jennifer K. Moses
  Chief Financial Officer

(Principal Financial and Accounting Officer)