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G1 Therapeutics

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FY2022 Annual Report · G1 Therapeutics
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
______________________________________________

FORM 10-K
______________________________________________

(Mark One)
x

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

o

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

For the fiscal year ended December 31, 2022

OR

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:
______________________________________________
Trading Symbol

GTHX

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

Title of each class

Common Stock $.0001 par value

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 o No x
Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. Yes o No x
Indicate by check mark whether the Registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12
months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No o
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 x No o
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

o

x

o

Accelerated filer

Smaller reporting company

o

x

If an emerging growth company, indicate by check mark if the Registrant has elected not to use the extended transition period for complying with any new or revised financial
accounting standards provided pursuant to Section 13(a) of the Exchange Act. o
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. x
If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of
an error to previously issued financial statements. o
Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s
executive officers during the relevant recovery period pursuant to §240.10D-1(b). o
Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No x
The aggregate market value of the voting and non-voting common equity held by non-affiliates of the Registrant as of June 30, 2022, the last business day of the Registrant’s most
recently completed second fiscal quarter, was $209.0 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 27, 2023 was 51,657,647.

Auditor Firm Id:

238

Auditor Name: PricewaterhouseCoopers LLP

Auditor Location: New York, NY, United States

Portions of the Registrant’s Definitive Proxy Statement relating to the Annual Meeting of Stockholders, scheduled to be held on June 15, 2023, 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, 2022.

Documents Incorporated by Reference

 
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.
Item 9C.

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
Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

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

i

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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 product approved 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  (myeloprotection)  and  is  the  first  innovation  in
managing myeloprotection in decades. In July 2022, COSELA (trilaciclib hydrochloride for injection) was conditionally approved by the China National
Medical Products Administration (NMPA) for marketing in China.

Trilaciclib was 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. Controlled administration and clean G1 arrest from transient CDK4/6 inhibition can protect bone marrow and reduce
hematologic  adverse  events  (“AEs”)  caused  by  cytotoxic  therapy  and  may  increase  the  ability  to  receive  longer  treatment  durations.  Transient  CDK4/6
inhibition also may improve survival in combination with leading and emerging treatments through myeloprotection, enabling increased cytotoxic exposure
while  protecting  the  immune  system,  and/or  through  immunomodulation,  which  may  improve  patients’  overall  anti-tumor  immune  responses.  We  are
exploring the use of trilaciclib in a variety of trials across multiple tumor types and treatment combinations to optimize these potential benefits of proactive
multi-lineage myeloprotection and survival in combination with leading and emerging treatments for patients globally.

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

COSELA is a prescription medicine used to help reduce the occurrence of low blood cell counts caused by damage to bone marrow from chemotherapy.
COSELA is used to treat adults taking certain chemotherapies (platinum/etoposide or topotecan) for extensive-stage small cell lung cancer.

COSELA is an injection for intravenous (IV) use given within four hours before chemotherapy.

Commercial Product

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  ES-SCLC.  COSELA  became  commercially  available  through  our
specialty distributor network on March 2, 2021.

We  announced  on  March  25,  2021  that  COSELA  had  been  included  in  two  updated  National  Comprehensive  Cancer  Network®  (“NCCN”)  Clinical
Practice  Guidelines  in  Oncology  (NCCN  Guidelines®):  The  Treatment  Guidelines  for  Small  Cell  Lung  Cancer  and  the  Supportive  Care  Guidelines  for
Hematopoietic Growth Factors. These guidelines document evidence-based, consensus-driven management to ensure that all patients receive preventive,
diagnostic, treatment, and supportive services that are most likely to lead to optimal outcomes. On October 1, 2021, we announced that the permanent J-
code for COSELA that was issued in July 2021 by the Centers for Medicare & Medicaid Services (CMS) is now effective for provider billing for all sites
of care. All hospital outpatient departments, ambulatory surgery centers and physician offices in the United States have one consistent Healthcare Common
Procedure Coding System (HCPCS) code to standardize the submission and payment of COSELA insurance claims across Medicare, Medicare Advantage,
Medicaid  and  commercial  plans.  Our  new  technology  add-on  payment  (NTAP)  for  COSELA  which  provides  additional  payment  to  inpatient  hospitals
above the standard Medicare Severity Diagnosis-Related Group (MS-DRG) payment amount also became effective for provider billing on October 1, 2021.

2

We are also exploring potential use of trilaciclib in a variety of tumors, including breast cancer, bladder cancer, and in trials designed to inform the design
of future additional pivotal studies across multiple tumor types and treatment combinations including certain chemotherapies, checkpoint inhibitors, and
antibody-drug conjugates (ADCs).

In  June  2020,  we  entered  into  a  three-year  co-promotion  agreement  for  COSELA  in  the  United  States  and  Puerto  Rico  with  Boehringer  Ingelheim
Pharmaceuticals,  Inc.  (“Boehringer  Ingelheim”).  In  December  2021,  the  Company  and  Boehringer  Ingelheim  mutually  agreed  to  end  the  co-promotion
agreement for COSELA, effective March 2022. At that time, we announced that we would hire and deploy a team of G1 oncology sales representatives to
allow  us  to  target  all  accounts  to  accelerate  sales  activities  and  help  maximize  the  adoption  of  COSELA.  As  of  February  21,  2022,  all  G1  sales
representatives were hired, trained, and deployed into their respective regions. Starting from the second quarter of 2022, the sales of COSELA has been
solely conducted by our COSELA sales team.

On  August  3,  2020,  we  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). On July 13, 2022,
the NMPA conditionally approved COSELA (trilaciclib hydrochloride for injection) for marketing in China. COSELA is indicated in China to decrease the
incidence of chemotherapy-induced myelosuppression in adult patients when administered prior to a platinum/etoposide-containing regimen for ES-SCLC.
As  a  result  of  receiving  approval  in  China,  Simcere  paid  the  Company  a  $13.0  million  milestone  (less  applicable  withholding  taxes  of  $1.3  million)
payment in the third quarter of 2022. In total, we may receive up to $156.0 million in milestone payments. We will also receive double-digit royalties on
annual net sales of COSELA in China, of which there were none during the year ended December 31, 2022.

Product Portfolio

Trilaciclib is a first-in-class therapy designed to help protect against chemotherapy-induced myelosuppression. Trilaciclib, a novel transient IV CDK4/6
inhibitor  has  unique  attributes  including  rapid  onset  from  IV  administration,  potent  and  selective  CDK4  and  CDK6  inhibition  and  a  short  half-life.
Controlled administration and clean G1-phase arrest reduce hematologic AEs caused by cytotoxic therapy and may increase patients’ abilities to receive
longer  treatment  durations.  Transient  CDK4/6  inhibition  also  modulates  multiple  immune  functions  ("immunomodulation")  while  allowing  beneficial  T
cell proliferation which may improve patients’ anti-tumor immune responses.

Trilaciclib  transiently  blocks  progression  through  the  cell  cycle.  This  provides  benefits  which  manifest  depending  on  the  tumor  type  and  therapeutic
backbone, including: (1) proactive multi-lineage myeloprotection to protect the bone marrow from cytotoxic damage, and (2) potentially improved survival
in combination with leading and emerging treatments.

We  are  pursuing  trilaciclib  across  key  growth  platforms.  First,  trilaciclib  provides  proactive  multi-lineage  myeloprotection  by  transiently  arresting
hematopoietic  stem  and  progenitor  cells  (“HSPCs”),  helping  to  protect  them  from  damage  caused  by  cytotoxic  therapy  thereby  minimizing  cytopenias
across  neutrophils,  erythrocytes,  and  platelets.  These  proactive  multi-lineage  myeloprotection  benefits  were  seen  in  our  three  Phase  2  double-blind,
placebo-controlled clinical trials in ES-SCLC, where highly myelosuppressive chemotherapy regimens are administered multiple days in a row. In addition,
these proactive multilineage myeloprotection benefits were seen in the initial data from the Phase 2 trial of trilaciclib in combination with the antibody-drug
conjugate, sacituzumab govitecan-hziy in patients with unresectable locally advanced or metastatic triple-negative breast cancer (TNBC). Initial data on the
first  18  patients  showed  a  clinically  meaningful  on-target  effect  of  trilaciclib  to  reduce  (>50%)  the  rates  of  multiple  adverse  events  compared  to  the
previously  published  sacituzumab  govitecan-hziy  single  agent  safety  profile  from  the  ASCENT  trial,  including  myelosuppression  (neutropenia,  anemia,
thrombocytopenia).

3

Second,  trilaciclib  has  the  potential  to  improve  survival  in  combination  with  leading  and  emerging  treatments  through  two  key  benefits,  including  (1)
myeloprotection, which may allow increased cytotoxic exposure while protecting the immune system, and/or (2) immunomodulation, which can improve
the overall immune response. The immunomodulation properties of trilaciclib is believed to occur through multiple factors, including (1) enhancing T cell
activation  (via  increased  antigen  presentation  and  secretion  of  IL-2  and  IFNγ),  (2)  favorably  altering  the  tumor  microenvironment  (via  increased
chemokines responsible for trafficking T cells to tumors and reducing the number and function of immunosuppressive cell populations), and (3) improving
long-term immune surveillance (via increased generation of memory CD8+ T cells). We are exploring these potential survival benefits of trilaciclib in a
variety  of  ongoing  Phase  2  and  Phase  3  clinical  trials.  A  meaningful  anti-tumor  efficacy  benefit  was  observed  in  our  Phase  2  mTNBC  study  in  which
trilaciclib  led  to  a  significant  improvement  in  overall  survival  (OS)  when  administered  in  combination  with  chemotherapy  (gemcitabine/carboplatin)
compared to chemotherapy alone. These are the foundational data for our ongoing PRESERVE 2 pivotal Phase 3 trial in 1L mTNBC.

We are evaluating the potential benefits of trilaciclib across a variety of treatment settings and potential combinations to maximize the applicability of the
drug  to  potential  future  treatment  paradigms.  We  currently  have  four  ongoing  clinical  trials:  a  pivotal  Phase  3  trial  in  1L  mTNBC,  a  Phase  2  trial  in
combination with an antibody-drug conjugate (“ADC”) in 2L/3L mTNBC, a Phase 2 trial in neoadjuvant TNBC designed to validate trilaciclib’s immune-
based mechanism of action (“MOA”), and a Phase 2 trial in 1L bladder cancer with chemotherapy induction and a checkpoint inhibitor maintenance. These
studies will evaluate trilaciclib’s benefits of myeloprotection and/or immunomodulation to improve anti-tumor efficacy in combination with leading and
emerging treatment options. We are also conducting significant preclinical work to assess the additive/synergistic potential of trilaciclib with a variety of
novel and emerging therapeutic agents to inform future clinical trials. New non-clinical data presented in September 2022 showed consistent synergistic
potential of trilaciclib to enhance the cancer immunity cycle by enhancing T cell activation, favorably altering the tumor microenvironment, and improving
long-term surveillance. Our overall development approach includes monitoring and anticipating the evolving future standards of care across tumor types to
design or support studies that will generate important data for trilaciclib across relevant future treatment settings and maximize future usage.

In  November  2022,  we  disclosed  encouraging  initial  data  from  our  ongoing  Phase  2  trial  of  trilaciclib  in  combination  with  the  ADC,  sacituzumab
govitecan-hziy. Initial data demonstrate the potential for an on-target effect of trilaciclib to meaningfully reduce the rates of adverse events associated with
sacituzumab  govitecan-hziy,  including  myelosuppression,  diarrhea,  and  potentially  alopecia  (due  to  the  presence  of  CDK4/6-expressing  cells  in  the
intestinal crypt and hair follicles) compared to the previously published sacituzumab govitecan-hziy single agent safety profile. We expect to release a more
comprehensive data set including safety and initial efficacy results in the second quarter of 2023.

In December 2022, we reported data at the annual San Antonio Breast Cancer Symposium (SABCS) from the initial dose finding Phase 2 portion of the
MOA trial, a multicenter, open-label, single-arm, neoadjuvant study where tumor tissue was obtained at baseline prior to study drug administration. Initial
results from the first 24 patients show favorable alterations in the tumor microenvironment from a single dose of trilaciclib monotherapy (240 mg/m2) as
measured by increases in the proportions of CD8+ T cells compared to T regulatory cells (Tregs) in patients with early-stage TNBC. No trilaciclib related
serious adverse events have been reported. We expect the pathologic complete response data to be available in the second quarter of 2023.

In  January  2023,  we  provided  an  initial  update  on  PRESERVE  3,  the  ongoing,  randomized,  open-label  Phase  2  study  of  first-line  platinum-based
chemotherapy and maintenance therapy with the immune checkpoint inhibitor, avelumab, administered alone, or in combination with trilaciclib, in patients
with  untreated,  locally  advanced  or  metastatic  urothelial  carcinoma  (“mUC”).  The  confirmed  overall  response  rate  (ORR)  per  RECIST  v1.1  was
comparable between arms and we believe that longer-term follow-up is required to characterize additional anti-tumor endpoints including median duration
of confirmed objective response and progression-free survival (PFS). Additional data, including the primary endpoint of PFS, are anticipated in mid-2023.

4

On February 13, 2023, we announced top line results from our pivotal Phase 3 PRESERVE 1 trial showing that the trial achieved its co-primary endpoints
related  to  severe  neutropenia  with  statistical  significance,  including  clinically  meaningful  and  statistically  significant  reductions  in  both  occurrence  of
severe  neutropenia  during  induction  (placebo=20%  vs.  trilaciclib=1%;  p<0.001)  and  mean  duration  of  severe  neutropenia  in  Cycles  1  through  4
(placebo=1.3  days  vs.  trilaciclib=0.1  days;  p<0.001).  Patients  receiving  trilaciclib  experienced  fewer  chemotherapy  dose  reductions  and  delays.  Other
secondary  measures  of  myeloprotection  also  favored  trilaciclib,  including  reductions  in  Febrile  Neutropenia  (placebo=5%  vs.  trilaciclib=0%)  and  ESA
administration  (placebo=7%  vs.  trilaciclib=3%).  These  results  further  validate  the  myeloprotection  benefit  of  trilaciclib.  In  addition,  patients  receiving
trilaciclib had a clinically meaningful reduction in the rate of chemotherapy-induced diarrhea, including a 50% reduction in the rate of Grade 3/4 diarrhea
and a 30% reduction in the rate of any grade diarrhea, compared to placebo.

However, despite the achievement of the co-primary endpoints and other secondary measures of myeloprotection and tolerability, early anti-tumor efficacy
data,  including  overall  response  rate  (ORR),  favor  patients  receiving  placebo  compared  to  trilaciclib  (61%  and  50%  ORRs,  respectively).  Given  the
differential in these anti-tumor efficacy metrics and the low likelihood of achieving the progression-free survival (PFS) and overall survival (OS) endpoints,
we have made the decision to discontinue PRESERVE 1. Other clinical trials of trilaciclib in combination with different chemotherapies in patients with
extensive-stage small cell lung cancer and triple negative breast cancer did not demonstrate this adverse survival signal.

Trilaciclib Development Pipeline

Candidate

Indication

Phase / Status

Initial Results

Additional
Results

1L metastatic Triple
negative breast cancer
(mTNBC)

Registrational Phase 3
trial (enrollment
completed in October
2022)

Interim OS
analysis
expected in 1H
2024

Endpoints

Primary: OS*
Secondary: PRO,
myeloprotection,
PFS/ORR

Development & 
Commercialization
Rights
(all indications)

trilaciclib

2L/3L TNBC in
combination with an
Antibody-drug
conjugate (ADC)

Phase 2 trial
(enrolling)

Initial safety
data announced
in 4Q 2022

PFS results
expected in 2Q
2023

Primary: PFS
Secondary: ORR, OS,
safety, myeloprotection,
others

Neoadjuvant TNBC
to evaluate
Mechanism of action
(MOA)

Phase 2 trial
(enrollment
completed in August
2022)

MOA data
presented in 4Q
2022

pCR results
expected in 2Q
2023

Primary: Immune-based
MOA
Secondary: pCR,
immune response, others

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

1L Bladder cancer
(mUC)

Phase 2 trial
(enrollment
completed in August
2022)

ORR data
announced in
1Q 2023

PFS results
expected in
mid-2023

Primary: PFS
Secondary: ORR, OS,
safety and efficacy,
others

PFS=progression-free  survival;  OS=overall  survival;  PRO=patient  reported  outcome;  ORR=overall  response  rate;  pCR=pathological  complete  response;
MOA=mechanism of action.

*Initial results expected: Phase 3 1L mTNBC trial: interim OS analysis; if the trial meets the interim analysis stopping rule, it will terminate and we will
report the topline results. If it does not, the trial will continue to the final analysis

5

 
1L Metastatic Triple-Negative Breast Cancer (mTNBC)

Building  upon  the  robust  OS  benefit  observed  in  the  prior  Phase  2  study,  we  initiated  PRESERVE  2,  a  pivotal  Phase  3  trial  of  trilaciclib  in  patients
receiving first-line gemcitabine and carboplatin (GC) for locally advanced unresectable or mTNBC; enrollment was completed in this trial in October 2022.
This study is evaluating trilaciclib in PD-L1 positive and negative patients and largely replicates the design of the positive Phase 2 trial which demonstrated
improved anti-tumor efficacy across patients. Anti-tumor efficacy and myeloprotection endpoints are being assessed in this study. We broadened enrollment
of  the  1L  cohort  in  this  study  to  also  include  patients  who  received  checkpoint  inhibitors  in  the  neo/adjuvant  setting  to  ensure  that  we  develop  clinical
experience for trilaciclib in this increasingly relevant patient population.

An interim overall survival (OS) analysis at 70% of events is currently anticipated in the first half of 2024 to evaluate the effect of trilaciclib on overall
survival in patients with TNBC when administered prior to treatment with GC. If the OS analysis achieves the threshold of statistical significance at this
interim assessment, the trial will be terminated, and the data will be reported. In that event, we would discuss the data with regulatory health authorities
regarding filing for potential approval of this indication.

Phase 2 Study of Trilaciclib in Combination with an Antibody-Drug Conjugate (ADC)

Triple negative breast cancer (“TNBC”) is an area where trilaciclib, in our Phase 2 study, and ADCs – medicines that deliver targeted chemotherapy agents
to cancer cells – have both shown clinically meaningful and substantial improvements in overall survival. We believe that trilaciclib and ADCs could act
synergistically to improve patient outcomes with fewer myelosuppressive side effects.

In November 2022, we disclosed encouraging initial safety and tolerability data from our ongoing Phase 2 trial of trilaciclib in combination with the ADC,
sacituzumab govitecan-hziy. Initial data demonstrate the potential for an on-target effect of trilaciclib to meaningfully reduce the rates of adverse events
associated  with  sacituzumab  govitecan-hziy,  including  myelosuppression,  diarrhea,  and  potentially  alopecia  (due  to  the  presence  of  CDK4/6-expressing
cells in the intestinal crypt and hair follicles) compared to the previously published sacituzumab govitecan-hziy single agent safety profile. Additional data
from this trial are expected in the second quarter of 2023 and will include anti-tumor efficacy endpoints as measured by the primary endpoint of PFS.

Phase 2 Study to Confirm the Immune-Based Mechanism of Action (MOA) of Trilaciclib

In December 2022, we provided initial results from 24 patients with early-stage TNBC receiving neoadjuvant treatment enrolled in the Phase 2 study of
trilaciclib and chemotherapy, a multicenter, open-label, single-arm, study, to evaluate and confirm the immune-based mechanism of action (“MOA”) of
trilaciclib.

Tumor  tissue  was  obtained  at  baseline  prior  to  study  drug  administration  with  patients  receiving  a  single  dose  of  trilaciclib  monotherapy  (240  mg/m2),
followed by a tumor biopsy approximately one week later to assess the ability of trilaciclib to favorably alter the tumor microenvironment. Patients then
entered  the  treatment  phase  in  which  trilaciclib  is  administered  on  day  1  of  each  cycle  of  anthracycline/cyclophosphamide  for  four  cycles  followed  by
trilaciclib administered on day 1 of each weekly cycle of taxane chemotherapy for 12 cycles. Pembrolizumab and/or carboplatin was added at the discretion
of the investigator. Three to five weeks after the treatment phase, patients will have curative surgery and a final tumor tissue sample will be collected if the
patient has residual disease. The primary objective is to evaluate the immune-based mechanism of action of a single dose of trilaciclib as measured by the
change in the ratio of CD8+ tumor-infiltrating lymphocytes (TILs) to Tregs in the tumor microenvironment.

Initial results presented in a poster session at the annual San Antonio Breast Cancer Symposium (SABCS) in December 2022 show favorable alterations in
the tumor microenvironment from a single dose of trilaciclib monotherapy as measured by increases in the proportions of CD8+ T cells compared to T
regulatory cells (Tregs) in patients with early-stage TNBC. The improvement of the ratio of CD8+ T cells to Tregs may enhance the overall anti-tumor
immune response and support the trends we observed in preclinical studies and in our Phase 2 trial in TNBC. No trilaciclib related serious adverse events
have been reported. We anticipate the pathologic complete response (pCR) data to be available in the second quarter of 2023.

6

1L Bladder Cancer

In  January  2023,  we  provided  an  initial  update  on  PRESERVE  3,  an  ongoing,  randomized,  open-label  Phase  2  study  of  first-line  platinum-based
chemotherapy and maintenance therapy with the immune checkpoint inhibitor, avelumab, administered alone, or in combination with trilaciclib, in patients
with  untreated,  locally  advanced  or  mUC.  Ninety-two  patients  with  mUC  were  randomized  (1:1)  to  receive  either  gercitabine/platinum  chemotherapy
(induction  phase)  followed  by  avelumab  (checkpoint  inhibitor)  maintenance  therapy  (maintenance  phase)  or  trilaciclib  prior  to  gercitabine/platinum
chemotherapy followed by trilaciclib plus avelumab maintenance therapy.

The confirmed ORR per RECIST v1.1 was comparable between arms with ORR being 40.0% (n=18/45) and 46.7% (n=21/45) among evaluable patients in
the trilaciclib and control arms, respectively. We believe that longer-term follow-up is required to characterize additional anti-tumor endpoints including
median  duration  of  response  and  PFS.  Though  early,  the  safety  and  tolerability  profile  of  trilaciclib  administered  prior  to  chemotherapy  is  generally
consistent with that expected in patients treated with gemcitabine plus cisplatin/carboplatin and avelumab maintenance for previously untreated advanced
or  mUC.  The  data  monitoring  committee  reviews  the  safety  of  trilaciclib  on  an  ongoing  basis  and  recommended  that  the  study  continue  as  planned.
Additional safety and efficacy data, including the primary endpoint of PFS, are anticipated mid-2023.

Investigator Sponsored Studies (ISS) Program

The  Company  has  an  Investigator  Sponsored  Studies  (“ISS”)  program.  An  ISS  is  a  study  that  is  developed  and  conducted  by  a  qualified  physician
investigator external to the Company who assumes full responsibility for the conduct of the study. An ISS can take a variety of forms including clinical and
nonclinical  studies  that  may  be  interventional  or  observational.  Our  ISS  program  supports  studies  that  align  with  our  areas  of  scientific  interest.  In  the
fourth quarter of 2022, the Company announced that we were supporting a new Phase 2 ISS of trilaciclib and lurbinectedin in patients with ES-SCLC. This
is a prospective, non-randomized, single-arm Phase 2 study, to evaluate trilaciclib administered intravenously prior to lurbinectedin in approximately 30
subjects  with  platinum  refractory  ES-SCLC.  The  primary  endpoint  is  the  rate  of  grade  4  neutropenia  in  any  cycle.  Secondary  endpoints  include  mean
duration (days) of grade 4 neutropenia in cycle 1, overall survival (OS), progression-free survival (PFS), overall rate of response (ORR), quality of life
assessments, and the use of secondary/reactive supportive measures including G-CSF administration.

Market opportunities for trilaciclib

Cancer is the second leading cause of death in the United States with an estimated 1.9 million new cases and 609,000 deaths in 2022, according to the
American Cancer Society. Cytotoxic therapies (chemotherapies, antibody-drug conjugates, others) are the standard of care treatment for multiple cancers.

Myelosuppression is a common serious adverse event related to cytotoxic therapies. These treatments have significant clinical utility and continue to be the
most  effective  treatment  for  many  cancers.  However,  cytotoxic  therapies  also  damage  HSPCs  (myelosuppression)  and  the  immune  system
(immunosuppression), leading to severe adverse effects and limiting anti-tumor activity. 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. Treating or
preventing the myelosuppressive side effects of cytotoxic therapy presents a large market opportunity, with chemotherapy utilized in more than one million
patients in North America annually, and newer cytotoxic agents such as ADCs continuing to demonstrate benefits in expanding patient populations. The
only  current  treatments  for  chemotherapy-induced  myelosuppression  are  rescue  interventions  like  growth  factors  and/or  transfusions  given  after
myelosuppression  occurs.  COSELA  is  the  only  product  approved  to  proactively  prevent  chemotherapy-induced  myelosuppression  and  we  continue  to
evaluate the utility of trilaciclib to prevent myelosuppression in clinical trials with existing and newer cytotoxic therapies.

7

Additionally,  significant  unmet  medical  need  continues  to  exist  for  products  that  can  meaningfully  improve  the  anti-tumor  efficacy  of  existing  and
emerging standard of care therapies. Despite continued advancements of new treatment modalities, additional novel therapies are needed to further improve
anti-tumor efficacy, including in combination with newer agents. Trilaciclib is a novel compound with the potential to meaningfully improve anti-tumor
efficacy across tumor types when administered in treatment combinations. We are studying trilaciclib broadly in multiple Phase 2 and Phase 3 clinical trials
to evaluate its potential to improve anti-tumor efficacy and reduce adverse events commonly associated with cytotoxic therapies:

•

•

•

Extensive-stage small cell lung cancer (ES-SCLC). According to the American Cancer Society, SCLC accounts for approximately
10-15% of all lung cancers. Approximately 27,000 people are treated annually in the United States for ES-SCLC in first and second
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 ES-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  total  market  value  of  the  trilaciclib  opportunity  for  all  eligible  ES-
SCLC patients in the U.S. exceeds $700 million.
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  2.3
million cases of breast cancer are diagnosed annually worldwide. In 2022, it is estimated that 43,250 women and 530 men died of
breast  cancer.  Triple  negative  breast  cancer  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 to return after it has been treated,
especially in the first few years after treatment.
Bladder cancer. We are evaluating the use of trilaciclib in bladder cancer in a Phase 2 study that initiated in the second quarter of
2021.  There  have  been  multiple  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®  (atezolizumab)  and  chemotherapy  in  patients  with  ES-SCLC
showed  myeloprotection  benefits  without  impairing  anti-tumor  efficacy.  This  Phase  2  trial  in  bladder  cancer  explores  the  use  of
trilaciclib in combination with chemotherapy for induction therapy and in combination with a checkpoint inhibitor for maintenance
therapy.  We  believe  trilaciclib  may  improve  outcomes  for  these  patients  based  on  potentially  synergistic  benefits  with  both
chemotherapy  and  immunotherapy.  The  American  Cancer  Society  estimates  that  there  will  be  over  82,000  new  cases  of  bladder
cancer diagnosed in the United States in 2023, and approximately 17,000 reported annual deaths.

8

Advantages of trilaciclib

Trilaciclib is a novel transient IV CDK4/6 inhibitor with unique attributes including rapid onset from IV administration, potent and selective CDK4 and
CDK6 inhibition and a short half-life. We believe that treating patients with trilaciclib prior to the administration of cytotoxic therapy or 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 cytotoxic therapy, 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 cytotoxic therapy 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  anti-tumor  efficacy  and  prolong  overall  survival  in  treatment  combinations.  Trilaciclib  has  demonstrated  the
ability to improve anti-tumor efficacy and increase overall survival in our Phase 2 mTNBC study. Trilaciclib may increase patients’
ability  to  receive  more  cytotoxic  therapy,  protect  their  immune  systems  from  damage  by  cytotoxic  therapy,  and  improve  their
immune responses by modulating multiple immune functions while also allowing beneficial T cell proliferation. We are evaluating
trilaciclib’s  ability  to  improve  anti-tumor  efficacy  across  multiple  tumor  types  and  in  various  treatment  combinations  in  ongoing
clinical studies.
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 prior to chemotherapy report less fatigue and improved physical
and functional well-being.
Potential  for  use  with  cytotoxic  therapy  /  immune  checkpoint  inhibitors  combinations.  Immune  checkpoint  inhibitors  are  often
combined  with  cytotoxic  therapy.  We  have  demonstrated  that  trilaciclib  mitigates  myelosuppression  in  ES-SCLC  patients  treated
with chemotherapy in combination with the immune checkpoint inhibitor Tecentriq. Additionally, our preclinical data suggests there
may  be  meaningful  potential  synergistic  benefits  in  terms  of  anti-tumor  efficacy  when  combining  trilaciclib  with  checkpoint
inhibitors in the appropriate treatment settings.
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.
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 to reduce these costs.
Potential  broad  applicability.  We  believe  trilaciclib  has  the  potential  to  benefit  patients  treated  with  multiple  myelosuppressive
cytotoxic regimens, including targeted chemotherapy (ADCs), across a wide range of tumor types.

9

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 caused by chemotherapy; preserves bone marrow and immune system function;
improves  complete  blood  count  (CBC)  recovery;  helps  protect  from  bone  marrow  exhaustion;  prevents  myeloid  skewing  and  consequent  lymphopenia;
activates T-cells in the tumor microenvironment; and enhances chemotherapy and checkpoint inhibitor anti-tumor activity.

We are currently conducting extensive preclinical development work to assess the synergistic potential of trilaciclib with a variety of novel and emerging
therapeutic agents to identify synergies to evaluate in future clinical trials.

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  for
the initial studies in patients.

 2

Completed randomized clinical trials

Trilaciclib (IV CDK4/6 inhibitor):

Indications
st
1 -line
Small  Cell  Lung  Cancer  (study  1
in package insert)

Regimen
+Tecentriq/
carboplatin/
etoposide

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

Metastatic  Triple  Negative  Breast
Cancer

+ etoposide/
carboplatin

+ topotecan

Status

Phase

Publications

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.

2

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

1b/2

1b/2

2

3

Annals of Oncology (Weiss et al.)
August 2019

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

Lancet Oncology (Tan et al.),
September 2019

To be published

+gemcitabine/carboplatin Phase 2 complete; Phase 3 fully enrolled
with  interim  OS  analysis  at  70%  of
events expected in 1H 2024.

1L metastatic Colorectal cancer
(CRC)

FOLFOXIRI +
bevacizumab

Phase 3 results announced in February
2023. Trial discontinued.

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

Based  on  the  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).

10

 
 
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  was  in  first-line  treatment  for  patients  with  ES-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 were 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 ES-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 were 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 meeting 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/m  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).

2

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  were  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/m  and topotecan doses of 0.75 to 1.5 mg/m  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/m   +
2
topotecan 0.75 mg/m and trilaciclib 240 mg/m  + topotecan 1.5 mg/m .

2 

2

2

2

2

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).

11

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 U.S. Food and Drug
Administration (“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.  COSELA™  (trilaciclib)  was  approved  by  the  FDA  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.

Phase 3 clinical trial in metastatic colorectal cancer (PRESERVE 1) - Trial discontinued

PRESERVE 1 was a randomized, placebo-controlled registrational trial of trilaciclib in colorectal cancer (“CRC”). CRC is a large indication commonly
treated  with  5-FU-based  chemotherapy.  We  have  extensive  preclinical  research  demonstrating  myeloprotection  in  5-FU-based  regimens  with  trilaciclib.
PRESERVE 1 evaluated trilaciclib administered in combination with the triplet therapy FOLFOXIRI (5-FU, folinic acid, oxaliplatin and irinotecan) and
bevacizumab,  which  is  the  most  efficacious  chemotherapy  regimen  for  most  1L  CRC  tumors  but  also  highly  myelosuppressive  compared  to  doublet
therapies including FOLFOX or FOLFIRI.

On February 13, 2023 , we announced topline results from our pivotal Phase 3 PRESERVE 1 trial showing that the trial achieved its co-primary endpoints
related  to  severe  neutropenia  with  statistical  significance,  including  clinically  meaningful  and  statistically  significant  reductions  in  both  occurrence  of
severe  neutropenia  during  induction  (placebo=20%  vs.  trilaciclib=1%;  p<0.001)  and  mean  duration  of  severe  neutropenia  in  Cycles  1  through  4
(placebo=1.3 days vs. trilaciclib=0.1 days; p<0.001).

However, despite the achievement of the co-primary endpoints and other secondary measures of myeloprotection and tolerability, early anti-tumor efficacy
data,  including  overall  response  rate  (ORR),  favor  patients  receiving  placebo  compared  to  trilaciclib  (61%  and  50%  ORRs,  respectively).  Given  the
differential in these anti-tumor efficacy metrics and the low likelihood of achieving the progression-free survival (PFS) and overall survival (OS) endpoints,
we have made the decision to discontinue PRESERVE 1. The Data Monitoring Committee (DMC) independently reached the same conclusion.

12

Other clinical trials of trilaciclib in combination with different chemotherapies in patients with extensive-stage small cell lung cancer and triple negative
breast cancer did not demonstrate this adverse survival signal.

Four ongoing clinical trials

Trilaciclib (IV CDK4/6 inhibitor):

Phase 3 clinical trial in first line Triple Negative Breast Cancer (PRESERVE 2)

Building upon the robust OS benefit observed in the prior Phase 2 study, in April 2021, we have completed enrollment in PRESERVE 2, a pivotal Phase 3
trial  of  trilaciclib  in  patients  receiving  first-  or  second-line  gemcitabine  and  carboplatin  chemotherapy  (“GC”)  for  locally  advanced  unresectable  or
mTNBC. Anti-tumor efficacy and myeloprotection endpoints are being assessed in this study. The Phase 3 trial is being conducted across multiple sites in
the United States and Europe. We have enrolled patients who previously received checkpoint inhibitors in the neo/adjuvant setting into the trial, to ensure
that we develop clinical experience in this patient population. The primary endpoint is to evaluate the effect of trilaciclib on overall survival (OS) compared
with placebo in patients receiving first-line GC. Key secondary endpoints include assessment of the effect of trilaciclib on patients’ quality of life compared
with placebo. Enrollment in this trial is complete at 187 1L patients. The interim Overall Survival (OS) analysis at 70% of events is expected in the first
half of 2024.

Phase 2 clinical trial in combination with the antibody-drug conjugate, Trodelvy® (Sacituzumab Govitecan-Hziy)

We  initiated  this  ongoing  Phase  2,  single  arm,  open-label  study  of  trilaciclib  administered  prior  to  the  antibody-drug  conjugate  (ADC),  Trodelvy®
(sacituzumab  govitecan-hziy)  in  patients  with  unresectable  locally  advanced  or  mTNBC  in  the  fourth  quarter  of  2021.  Anti-tumor  efficacy  and
myeloprotective  endpoints  are  being  assessed.  The  primary  objective  is  to  evaluate  the  anti-tumor  efficacy  of  trilaciclib  when  administered  prior  to
sacituzumab  govitecan-hziy  as  measured  by  progression-free  survival  (PFS).  Secondary  endpoints  include  evaluation  of  the  anti-tumor  efficacy  as
measured by the objective response rate (ORR), duration of objective response (DOR), clinical benefit rate (CBR), overall survival (OS); and evaluation of
the myeloprotective effects of trilaciclib.

In  November  2022,  we  provided  encouraging  initial  data  this  Phase  2  trial.  Initial  data  demonstrate  the  potential  for  an  on-target  effect  of  trilaciclib  to
meaningfully reduce the rates of adverse events associated with sacituzumab govitecan-hziy, including myelosuppression, diarrhea, and potentially alopecia
(due to the presence of CDK4/6-expressing cells in the intestinal crypt and hair follicles) compared to the previously published sacituzumab govitecan-hziy
single agent safety profile. We expect to release a more comprehensive data set including safety and initial efficacy results, including outcome by tumor
PD-L1 status, in the second quarter of 2023.

Phase 2 clinical trial to confirm the anti-tumor mechanism of action (MOA) in the tumor microenvironment

We initiated this trial in the fourth quarter of 2021. The trial is a Phase 2 multicenter, single arm, open-label study of trilaciclib in patients with early-stage
neoadjuvant  TNBC  designed  to  further  investigate  the  role  of  trilaciclib  in  modulating  the  anti-tumor  immune  response.  Pathologic  complete  response
endpoints  are  also  being  evaluated  in  this  trial  and  are  expected  to  be  available  in  the  second  quarter  of  2023.  The  primary  objective  is  to  evaluate  the
immune-based  mechanism  of  action  (“MOA”)  of  trilaciclib  after  a  single-dose  as  measured  by  the  change  in  the  ratio  of  CD8+  tumor-infiltrating
lymphocytes  (TILs)  to  regulatory  T  cells  (Tregs)  in  the  tumor  microenvironment.  Secondary  and  exploratory  endpoints  include  the  assessment  of
pathologic complete response (pCR) at the time of definitive surgery, and safety of the combination of trilaciclib with neoadjuvant chemotherapy regimen;
exploratory endpoints include assessment of the immune response, and identification of molecular and cellular biomarkers in tumor or blood samples that
may be indicative of clinical response/resistance, pharmacodynamic activity, and/or the mechanism of action of trilaciclib.

In  December  2022,  we  reported  data  at  the  annual  San  Antonio  Breast  Cancer  Symposium  (SABCS)  from  the  first  24  patients,  which  show  favorable
alterations in the tumor microenvironment from a single dose of trilaciclib monotherapy (240 mg/m2) as measured by increases in the proportions of CD8+
T cells compared to T regulatory cells (Tregs) in patients with early-stage TNBC. The improvement of the ratio of CD8+ T cells to Tregs may enhance the
overall  anti-tumor  immune  response  and  support  the  trends  we  observed  in  preclinical  studies  and  in  our  Phase  2  trial  in  TNBC.  No  trilaciclib  related
serious adverse events have been reported. We anticipate the pathologic complete response (pCR) results, including outcome by tumor PD-L1 status, to be
available in the second quarter of 2023.

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Phase 2 clinical trial in first line Bladder Cancer (PRESERVE 3)

We initiated PRESERVE 3, a Phase 2, randomized, open-label study of first-line platinum-based chemotherapy and maintenance therapy with the immune
checkpoint inhibitor, avelumab, administered alone, or in combination with trilaciclib, in patients with untreated, locally advanced or mUC, in the second
quarter  of  2021.  The  primary  endpoint  is  to  evaluate  the  anti-tumor  efficacy  of  trilaciclib  when  combined  with  platinum-based  chemotherapy  and  the
checkpoint  inhibitor  avelumab  maintenance  therapy  as  measured  by  progression-free  survival  (PFS)  during  the  overall  study.  Key  secondary  endpoints
include evaluation of the anti-tumor efficacy of trilaciclib as measured by the ORR, DOR, PFS in the maintenance period, OS and other metrics. We have
entered  into  a  clinical  trial  collaboration  with  the  alliance  between  Merck  KGaA,  Darmstadt,  Germany  and  Pfizer  whereby  the  alliance  will  contribute
clinical supply of avelumab to this G1-sponsored and funded trial in mUC.

In January 2023, we provided an initial update on PRESERVE 3. The confirmed ORR per RECIST v1.1 was comparable between arms with ORR being
40.0% (n=18/45) and 46.7% (n=21/45) among evaluable patients in the trilaciclib and control arms, respectively. We believe that longer-term follow-up is
required to characterize additional anti-tumor endpoints including median duration of response and PFS. Though early, the safety and tolerability profile of
trilaciclib administered prior to chemotherapy is generally consistent with that expected in patients treated with gemcitabine plus cisplatin/carboplatin and
avelumab maintenance for previously untreated advanced or mUC. The data monitoring committee reviews the safety of trilaciclib on an ongoing basis and
recommended that the study continue as planned. Additional safety and efficacy data, including the primary endpoint of PFS, are anticipated mid-2023.

Investigator Sponsored Studies (ISS) Program

Trilaciclib (IV CDK4/6 inhibitor)

An Investigator Sponsored Study (“ISS”) is a study that is developed and conducted by a qualified physician external to G1 Therapeutics who assumes full
responsibility  for  the  conduct  of  the  study.  An  ISS  can  take  a  variety  of  forms  including  clinical  and  nonclinical  studies  that  may  be  interventional  or
observational. We support studies that align with our areas of scientific interest.

In the fourth quarter of 2022, the Company announced that we were supporting a new Phase 2 ISS of trilaciclib and lurbinectedin in patients with ES-
SCLC,  This  is  a  prospective,  non-randomized,  single-arm  Phase  2  study,  to  evaluate  trilaciclib  administered  intravenously  prior  to  lurbinectedin  in
approximately 30 subjects with platinum refractory ES-SCLC. The primary endpoint is the rate of grade 4 neutropenia in any cycle. Secondary endpoints
include  mean  duration  (days)  of  grade  4  neutropenia  in  cycle  1,  overall  survival  (OS),  progression-free  survival  (PFS),  overall  rate  of  response  (ORR),
quality of life assessments, and the use of secondary/reactive supportive measures including G-CSF administration.

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  small  cell  lung  cancer  (“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.

We 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,  we  will  conduct  certain  post-
marketing  activities,  including  in  vitro  drug-drug  interaction  and  metabolism  studies,  and  a  clinical  trial  to  assess  the  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. We are in the process of site selection for the post-approval clinical trial and anticipate site
activation and first patient enrollment in the first half of 2023.

14

In 2021, the FDA granted Fast Track designation to trilaciclib for use in combination with chemotherapy for the treatment of locally advanced or mTNBC.
Fast track is a process designed to facilitate the development and expedite the review of drugs to treat serious conditions and fill unmet medical needs. The
purpose is to get important new drugs to the patient earlier. A drug that receives Fast Track designation may be eligible for more frequent engagements
with  the  FDA  to  discuss  a  drug’s  clinical  development  plan,  eligibility  for  Accelerated  Approval  and  Priority  Review,  and  Rolling  Review  in  which
completed sections of a New Drug Application (NDA) can be submitted for FDA review on a rolling basis rather than waiting until all sections of the NDA
are completed before the entire application can be reviewed.

We continue to engage in research and clinical development of trilaciclib in order seek regulatory approval to market additional indications in multiple
tumor types and treatment combinations, including breast cancer and bladder cancer.

Lerociclib

Lerociclib is a differentiated clinical-stage 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 provide $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.

Rintodestrant

Rintodestrant is an oral SERD for use as a monotherapy and in combination with CDK4/6 inhibitors, initially Ibrance® (palbociclib), for the treatment of
ER+, HER2- breast cancer. After completing the evaluation of our rintodestrant partnering options and recent data in the highly competitive oral SERD
space, we made the strategic decision to discontinue the program. We reverted the rights back to the originator (University of Illinois Chicago) during the
third quarter of 2022; there are no additional financial obligations due to the originator resulting from the reversion.

CDK2 Inhibitor

In  2020,  we  entered  into  a  global  license  agreement  with  Incyclix  Bio,  LLC  (“Incyclix”),  formerly  ARC  Therapeutics,  LLC,  for  the  development  and
commercialization  of  an  internally  discovered  cyclin-dependent  kinase  2  (“CDK2”)  inhibitor  for  all  human  and  veterinary  uses.  Incyclix  is  currently
granted an exclusive, royalty-bearing, license with the right to grant sublicenses to one of our solely owned patent families.

Our Business Strategy

Our  goal  is  to  improve  the  lives  of  those  impacted  by  cancer  through  the  ongoing  development  and  expansion  of  trilaciclib.  Our  strategy  includes  the
following key components:

•

•

•

Establish COSELA as the standard of care for ES-SCLC in the United States. COSELA (trilaciclib) 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).
Maximize  long-term  value  of  trilaciclib  by  executing  our  robust  development  plan  across  multiple  indications  and  treatment
settings. We believe that, because of its mechanism of action and unique attributes, including rapid onset from IV administration,
potent and selective CDK4 and CDK6 inhibition, and short half life trilaciclib has the potential to be used to treat patients receiving
myelosuppressive  cytotoxic  therapies  like  chemotherapy  and  to  meaningfully  improve  anti-tumor  efficacy  across  multiple  tumor
types and when administered in various treatment combinations.
Manage capital efficiently to fully fund operations. We intend to efficiently execute our capital management strategies to ensure our
ability  to  fund  our  operations,  including  the  commercialization  of  COSELA  in  ES-SCLC,  and  our  ongoing  and  future  clinical
programs to develop trilaciclib in additional cancer indications.

15

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). In June 2020, we entered into a three-year co-promotion agreement for COSELA in the United States and Puerto
Rico  with  Boehringer  Ingelheim  Pharmaceuticals,  Inc.  (“BI”).  In  December  2021,  G1  and  BI  mutually  agreed  to  end  the  co-promotion  agreement  for
COSELA, effective March 2022. At that time, we announced that we would hire and deploy a team of G1 oncology sales representatives to accelerate sales
activities and help maximize the adoption of COSELA. As of February 21, 2022, all sales representatives have been hired, trained and deployed. We are
now managing and executing all commercial activities in-house, including sales, marketing, market access and clinical nurse educator functions, as well as
product distribution. The G1 to One program serves as a patient hub and provides patient and healthcare provider services.

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 our preclinical studies, clinical trials and commercial product from multiple third-party manufacturers. Redundant suppliers are in place for
some of our drug substances and drug products. As development proceeds for our products, we will evaluate qualifying additional redundant manufacturers
for drug substances and drug products.

Although  we  are  reliant  on  third  parties  to  manufacture  our  products,  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 products 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  products  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 products 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,
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.

16

Intellectual property

Our commercial success depends in part on our ability to obtain and maintain proprietary protection in jurisdictions where we seek to commercialize our
FDA  approved  CDK4/6  inhibitor  trilaciclib  (COSELA).  Our  commercial  success  also  depends  in  part  on  our  ability  to  obtain  and  maintain  proprietary
protection  in  the  jurisdictions  where  our  licensees  seek  to  commercialize  our  proprietary  CDK  inhibitors,  including  clinical  candidates  trilaciclib  and
lerociclib. We have secured patent protection to the composition of matter for trilaciclib and lerociclib in a number of jurisdictions, including for example,
the  United  States,  Europe,  China,  Hong  Kong,  Macau,  Japan,  Korea,  Singapore,  Australia,  Canada,  Mexico,  India,  Israel,  Russia,  and  Brazil.  We  have
secured  patent  protection  to  the  use  of  trilaciclib  or  lerociclib  for  the  treatment  of  certain  cancers,  including  in  the  United  States,  Europe,  China,  Hong
Kong,  Macau,  Japan,  and  Canada.  We  also,  where  we  believe  appropriate,  seek  protection  on  processes  for  the  production  of  our  CDK4/6  inhibitors,
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. For example, we have filed for
patent term extensions with the United States Patent and Trademark Office seeking the extension of term for patents encompassing trilaciclib. 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 trilaciclib and lerociclib. We have the
exclusive right to prosecute these patent families in our sole discretion, and, where we have out-licensed patents and patent applications, our licensees have
the  right  to  review  and  comment  on  all  material  patent  filings,  and  their  review  and  comments  will  be  considered  by  us  in  good  faith.  Our  intellectual
property strategy includes patenting our CDK4/6 inhibitors, their uses, and methods of manufacturing. We have obtained more than twenty composition-of-
matter patents in the United States on a number of our CDK4/6 inhibitors, including claims that cover trilaciclib and lerociclib, and we continue to seek
composition-of-matter patents on additional CDK inhibitors both in the United States and throughout the world. In addition, we have obtained more than
eighteen  patents  in  the  United  States  on  methods  of  treatment  using  a  number  of  our  CDK4/6  inhibitors,  including  claims  that  cover  methods  of  using
trilaciclib and lerociclib. We continue to seek additional patents for our key CDK4/6 inhibitors and their uses in key therapeutic areas.

As of December 31, 2022, we have listed 10 U.S. granted patents in the U.S. FDA’s Orange Book for our U.S. Food and Drug Administration approved
drug trilaciclib (COSELA), with an additional patent granted pending listing. In addition, on April 8, 2021, we filed a request for patent term extension
pursuant to 35 U.S.C. § 156 on two of these listed patents (U.S. 8,598,186 and U.S. 9,487,530). We ultimately intend to elect one patent for extension. To
the  extent  U.S.  8,598,186  is  elected,  the  term  is  expected  to  be  extended  to  December  30,  2034.  To  the  extent  U.S.  9,487,530  is  elected,  the  term  is
expected to be extended to February 12, 2035.

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.

17

We are party to four license agreements relating to our CDK inhibitor technology. On May 22, 2020, we entered into a license agreement with Incyclix Bio,
LLC  ("Incyclix"),  formerly  ARC  Therapeutics,  LLC,  where  we  out-licensed  to  Incyclix  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 (as defined below). 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 (as defined below). 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 (as defined below). Each of these license agreements is described below.

Our owned and in-licensed patent estate as of December 31, 2022, on a worldwide basis, includes over 390 granted or pending patent applications in more
than 30 patent families with more than 46 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 trilaciclib and lerociclib will expire in 2031, exclusive of any patent term extension. As
described  above,  we  have  filed  a  request  for  patent  term  extension  under  35  U.S.C.  §  156  for  a  term  extension  of  U.S.  8,598,186,  which  claims  the
composition  of  matter  of  trilaciclib,  which,  if  granted,  would  extend  the  term  of  this  patent  to  December  30,  2034.  Our  current  issued  patents  covering
methods of use of trilaciclib and lerociclib will expire in 2034 to 2039. As described above, we have filed a request for patent term extension under 35
U.S.C. § 156 for a term extension of U.S. 9,487,530, which claims the use of trilaciclib to reduce the effect of chemotherapy on healthy cells in a subject
being treated for, among other things, small cell lung cancer, which, if granted, would extend the term of this patent to February 12, 2035. Our pending
applications on additional methods of use of trilaciclib and lerociclib, should they issue, will expire on dates ranging from 2034 to 2043. We plan to file
additional applications on aspects of our innovations that may have patent terms that extend beyond these dates.

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 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.

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Trilaciclib and lerociclib patent coverage

We  own  seven  issued  U.S.  Patents  (U.S.  8,598,186;  U.S.  8,598,197;  U.S.  9,957,276;  U.S.  10,189,849;  U.S.  10,189,850;  U.S.  10,927,120;  and  U.S.
11,040,042) covering the trilaciclib compositions-of-matter and its pharmaceutical composition. We have listed each of these patents in the Orange Book
listing for COSELA. 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  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  three  issued  U.S.  Patents  (U.S.  9,487,530;  U.S.  10,085,992;  and  10,966,984)  covering  the  use  of  trilaciclib  to  reduce  the  effect  of
chemotherapy on healthy cells in a subject being treated for cancer, each of which has been listed in the Orange Book listing for COSELA. 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,  and  the  use  of  trilaciclib  to  treat  cancer  in  combination  with  a
chemotherapeutic  agent.  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, Canada, and Japan.
A patent application from this family is pending in Europe, Japan, and the United States. 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. Patents have been granted or allowed
in the United States, Russia, EAPO, and New Zealand. The granted U.S. Patent (U.S. 11,529,352) has been submitted for listing in the Orange Book listing
for COSELA. This granted patent received 595 days of patent term adjustment, and will expire July 23, 2039. The expected year of expiration for other
members of 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 four issued U.S. Patents (U.S.
9,527,857; U.S. 10,076,523; U.S. 10,434,104; and U.S. 10,925,878) and one allowed 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. The ‘878 patent is directed to the use of trilaciclib in combination with a chemotherapeutic agent to treat RB-positive tumors.
The  allowed  U.S.  patent  application  covers  the  treatment  of  NSCLC  or  breast  cancer  by  administering  lerociclib  at  least  once  a  day  for  24  or  more
continuous days. Patents in this family have also issued in China, Hong Kong, Macau, Canada, and Japan, and a patent application has been allowed in the
EPO. 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, allowed in 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. One application has granted in the United States (U.S.
11,395,821).  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.

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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 two granted U.S. patents (U.S. 10,231,969 and U.S. 11,446,295), 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. Patents have been granted in the United States (U.S. 11,261,193), Australia, and
Mexico, and have been allowed in the EAPO and ARIPO. 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. Patents have been granted in the United States (U.S. 11,357,779), and ARIPO. 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 issued in the United States (10,988,479) and is pending in the United
States,  European  Patent  Office  (EPO),  China,  Hong  Kong,  and  Taiwan.  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 is pending in the United States, Europe, China, and Hong Kong. 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 the selection of patients for administration of trilaciclib based on tumor type, chemotherapeutic regimen, and immune
factors.  This  family  has  been  filed  in  the  United  States,  China,  Hong  Kong,  Taiwan,  Japan,  Canada,  Australia,  the  European  Patent  Office  (EPO),  and
Argentina.  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 seven 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 between 2041 and 2043, without regard to any extensions, adjustments, or restorations of term that
may be available under national law.

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.

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Under the Simcere License, G1 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 our 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.

Pursuant to the Simcere License, Simcere agreed to pay us 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 us tiered low double-digit royalties on annual
net  sales  of  trilaciclib  in  the  Simcere  Territory.  On  February  9,  2023,  Simcere  and  G1  announced  the  issuance  of  the  first  prescription  for  COSELA®
(trilaciclib) in China. The upfront payment of $14.0 million (less applicable withholding taxes of $1.4 million) was received in September 2020. In return,
we furnished 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.

On July 13, 2022, the NMPA conditionally approved COSELA (trilaciclib hydrochloride for injection) for marketing in China. As a result of receiving
approval in China, Simcere paid us a $13.0 million milestone payment (less applicable withholding taxes of $1.3 million) in the third quarter of 2022. For
the  completion  of  manufacturing  technology  transfer  in  the  third  quarter  of  2022,  Simcere  paid  us  a  $1.0  million  milestone  payment  (less  applicable
withholding taxes of $0.1 million) in October 2022. For the twelve months ended December 31, 2022, we recognized $14.0 million of revenue related to
development milestones.

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, G1 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  patent  that  contains  claims  covering  only  lerociclib  that  arises  as  a  result  of  making,  using,  offering  to  sell,  selling  or
importing of 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 our 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.

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Pursuant to the license agreement, EQRx agreed to pay us 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  us  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,  we  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. We will continue until completion, as
the clinical trial sponsor, its two primary clinical trials at EQRx’s sole cost and expense. EQRx agreed to reimburse us for all of its out-of-pocket costs
incurred after the effective date of the license agreement in connection with these clinical trials. We will invoice EQRx within 30 days following the end of
each quarter, and EQRx will pay within 30 days after its receipt of such invoice. For the twelve months ended December 31, 2022, we did not recognize
any revenue related to development milestones.

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, G1 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 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  our  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.

Pursuant to the license agreement, Genor agreed to pay us 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 us 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,
we 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. For the twelve months
ended December 31, 2022, we did not recognize any revenue related to development milestones.

Exclusive license to Incyclix Bio, LLC

On May 22, 2020, we entered into a global license agreement with Incyclix Bio, LLC (“Incyclix”), formerly ARC Therapeutics, LLC for the development
and commercialization of a CDK2 inhibitor for all human and veterinary uses. Pursuant to the Incyclix License, Incyclix is currently granted an exclusive,
royalty-bearing, license with the right to grant sublicenses to one of our solely-owned patent families. At close, we received consideration in the form of an
upfront payment of $1.0 million and an equity interest in Incyclix equal to 10% of its issued and outstanding units valued at $1.1 million. In addition, we
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. In the first quarter of 2022, Incyclix announced a new round of financing which we did not participate. Following the
financing, our equity interest is now approximately 6.5%.

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We also have right of first negotiation to re-acquire these assets. In 2021, Incyclix returned three of the four licensed patent families. Under the Incyclix
License, Incyclix 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 Incyclix in good faith.

Under the Incyclix License, Incyclix is solely responsible for all patent prosecution costs. Incyclix has the first right, but not the obligation, to bring and
control any infringement action at its own expense, subject to Incyclix keeping us reasonably informed. Incyclix 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 Incyclix declines to file a lawsuit, we have the right to bring an infringement action
at our own expense.

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.  In  May  2022,  we  notified  the
University that we were terminating the license agreement. After completing the evaluation of our rintodestrant partnering options and recent data in the
highly  competitive  oral  SERD  space,  we  made  the  strategic  decision  to  discontinue  the  program.  We  reverted  the  rights  back  to  the  originator,  the
University, during the third quarter of 2022; there are no additional financial obligations due to the originator resulting from the reversion.

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.

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.

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.

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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.

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.

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.

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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. 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.

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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,  and  certain
provisions  are  effective  as  of  January  1,  2022,  with  full  effectiveness  as  of  January  1,  2023.  The  CPRA  modifies  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.
Among other things the CPRA established a new regulatory authority, the California Privacy Protection Agency, with will be enacting new regulations and
will have expanded enforcement authority. Virginia and Colorado enacted similar data protection laws in 2021, and other U.S. states have proposals under
consideration, increasing the regulatory compliance risk.

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) 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.

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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.

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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.

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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.

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.

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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.

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:

■

■
■
■
■
■

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.

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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:

■
■
■
■
■
■

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  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.

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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

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.

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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 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.

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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 in the future, 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;

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•

•

•

•

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
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.

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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.

37

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.

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Human Capital

As  of  December  31,  2022,  we  had  170  full-time  employees,  including  47  in  research  and  development  and  123  in  selling,  general  and  administrative
functions. Of these full-time employees, 34 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. We conduct routine pay equity analysis to determine we have pay equity across gender and race in similar jobs, accounting
for  factors  such  as  role,  experience,  education  and  level.  We  also  have  a  Culture  Committee  and  a  Diversity,  Equity,  and  Inclusion  (DEI)  Committee
comprised of employees across departments, who focus on employee engagement, building a more diverse and inclusive organization, 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, and family leave.

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

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 govern 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. We supported our employees
by maintaining base compensation throughout the year, and our year-end practices around merit, bonus and equity were not impacted.

As  of  January  1,  2023,  the  majority  of  our  employees  are  still  working  remotely,  which  may  negatively  impact  our  ability  to  conduct  research  and
development activities, engage in sales-related initiatives, or efficiently conduct day-to-day operations. In March 2023, we expect our headquarters-based
employees will return to the office on a 3-2 hybrid model (3 days in office, 2 days remote). In addition, we added bandwidth and VPN capacity to our
infrastructure to facilitate remote work arrangements. We will continue to monitor the impact of COVID-19 on our operations, including how it will impact
our employees, clinical trials, development programs, supply chain, and other aspects of our operations, and report to our Board of Directors regularly on
the  progress  of  our  response  to  the  COVID-19  outbreak.  Throughout  the  outbreak,  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.

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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 COSELA

•
•
•
•
•
•
•
•
•

We depend almost entirely on the commercial success of COSELA.
COSELA may fail to achieve the degree of market acceptance for commercial success.
We may not be able to effectively sell or market COSELA, or generate substantial product revenues.
COSELA may become subject to unfavorable pricing regulations or third-party coverage and reimbursement policies.
We face substantial competition.
We must comply with post-approval development and regulatory requirements to maintain FDA approval of COSELA.
Product liability lawsuits against us could cause us to incur substantial liabilities.
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 our financial position and need for additional capital:

•
•
•
•
•

We may need additional funding.
We expect to incur losses for the foreseeable future and may never achieve or maintain profitability.
Raising additional capital may cause dilution to our stockholders, restrict our operations or require us to relinquish rights.
Our limited operating history may make it difficult for you to evaluate the success of our business.
Our financial condition raises substantial doubt as to our ability to continue as a going concern.

Risks related to development of COSELA:

•
•
•
•

If we are unable to successfully develop and commercialize COSELA, our business will be materially harmed.
Delays in the enrollment of patients in clinical trials, may delay or prevent our plans.
Initial success in our ongoing clinical trials may not be indicative of results obtained when these trials are completed.
We  may  incur  additional  costs  or  experience  delays  in  completing  the  development  and  may  ultimately  be  unable  to  obtain  the
approval COSELA in additional indications.

Risks related to additional marketing approval of COSELA:

•

•

If we are not able to obtain, or if there are delays in obtaining, the additional required marketing approvals, we will not be able to
broadly commercialize COSELA, and our ability to generate revenue will be materially impaired.
COSELA may cause undesirable side effects that could delay or prevent additional marketing approvals, limit the commercial profile
of additional approved labels, or result in significant negative consequences following additional marketing approvals, if any.

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•

COSELA  is  subject  to  extensive  post-marketing  regulatory  requirements  and  could  be  subject  to  additional  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 COSELA.

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

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 COSELA. 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 additional marketing approval for or commercialize COSELA, and our business could be substantially harmed.
We contract with third parties for the manufacture of COSELA for preclinical studies and clinical trials. This reliance on third parties
increases  the  risk  that  we  will  not  have  sufficient  quantities  of  COSELA  or  drugs  or  such  quantities  at  an  acceptable  cost,  which
could delay, prevent or impair our development or commercialization efforts.
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.

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.
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 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.

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

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Risks related to the commercialization of COSELA

We depend almost entirely on the commercial success of COSELA. 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.

In  2022,  we  have  generated  $31.3  million  in  revenues  from  the  sale  of  COSELA.  COSELA  was  approved  by  the  FDA  in  February  2021  and  was
commercially available in the U.S. on March 2, 2021. There is no assurance that the sales of COSELA will grow on the timing we anticipate. We may
encounter delays or hurdles related to our sales efforts that affect amount of revenue generated and the timing of such revenue.

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.  Prior  to  COSELA,  we  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 for the 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  as  we  have  had  positive  early  indications  from  payors,  including  potential  limitations  in  the  scope,  breadth,
availability,  or  amount  of  reimbursement  covering  COSELA.  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 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  does  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 will depend on a number of factors, including:

•
•
•
•
•

•
•
•
•
•
•

•

the timing of our receipt of any additional 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 COSELA;
adverse  publicity  about  COSELA,  including  the  discontinuation  of  the  trial  in  first  line  metastatic  colorectal  cancer,  or
favorable publicity about competing products;
our ability to offer COSELA 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 COSELA together with other medications.

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

42

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

To achieve commercial success for COSELA, we must continue to develop 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 maintaining our own sales and marketing capabilities and
entering into arrangements with third parties to perform these services.

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

•
•

•

•

our inability to 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
COSELA;
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.

In addition, we may not be successful in entering into arrangements with third parties to market and distribute COSELA 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 market and distribute our products effectively. If we do not establish sales, marketing, and distribution capabilities successfully,
either on our own or in collaboration with third parties, we will not be successful in commercializing COSELA to receive marketing approval or any such
commercialization may experience delays or limitations. If we are not successful in commercializing COSELA, 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.

If market opportunities for COSELA are smaller than we estimate or if any FDA approval that we receive for additional indications for COSELA are
based on a narrower definition of the patient population, our revenues may be substantially lower than we estimate.

We are focused on the development and commercialization of COSELA, the first and only therapy indicated to proactively help protect bone marrow from
the damage of chemotherapy. We have estimated the number of people who have cancer or will develop cancer and have estimated those who could benefit
from COSELA. However, our estimates, which have been developed from a number of sources, may ultimately be inaccurate. Our estimates may change
because of novel studies, the number of potential patients may be fewer than contemplated, the additional indications for COSELA approved by FDA may
be based on a narrower definition of the patient population than we have estimated, patients may not be receptive to treatment with COSELA, patients may
select our competitors’ products instead of ours, or it may be more difficult to identify the potential patient population than anticipated, all of which could
cause the market opportunities for COSELA to be more limited than we predicted and adversely impact our business and profitability.

Even if we are able to commercialize COSELA, it 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 COSELA in a particular country, but then be subject to price regulations that delay our commercial launch,
possibly for lengthy time periods, and negatively impact the revenues we are able to generate from the sale of COSELA in that country. Adverse pricing
limitations may hinder our ability to recoup our investment in COSELA, even if marketing approval is obtained.

43

Our ability to commercialize COSELA successfully also will depend in part on the extent to which coverage and reimbursement for COSELA 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 COSELA and, if coverage is available, the level of payments. Reimbursement may impact the demand for, or the price of, COSELA. If
reimbursement is not available or is available only to limited levels, we may not be able to successfully commercialize COSELA.

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  medicines  by  determining  standards  of  care.  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.

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 COSELA 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  COSELA  caused  injuries,  we  will
incur substantial liabilities. Regardless of merit or eventual outcome, liability claims may result in:

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decreased demand for COSELA or products that we may develop;
injury to our reputation and significant negative media attention;
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. 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.

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If we or any of our future partners violate the guidelines pertaining to promotion and advertising of COSELA, 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  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.

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  COSELA  from  major
pharmaceutical companies, specialty pharmaceutical companies and biotechnology companies worldwide. 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 COSELA. 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.

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 additional indications, 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 COSELA 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.

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Even though COSELA received 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.

As a condition of the 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 COSELA if, for example, the trial required to verify the predicted clinical benefit fails to verify such benefit or does
not  demonstrate  sufficient  clinical  benefit  to  justify  the  risks  associated  with  COSELA.  The  FDA  may  also  withdraw  approval  if  other  evidence
demonstrates that COSELA is not shown to be safe or effective under the conditions of use, we fail to conduct any required post approval trial of COSELA
with due diligence or we disseminate false or misleading promotional materials relating thereto. With the exception of the clinical study noted in (i) above,
we have completed the other requirements and submitted them to the FDA for review.

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,  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. 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;

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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.

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 COSELA to
other  available  therapies.  If  reimbursement  of  COSELA  is  unavailable  or  limited  in  scope  or  amount,  or  if  pricing  is  set  at  unsatisfactory  levels,  our
business could be harmed, possibly materially.

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Risks related to our financial position and need for additional capital

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,  COSELA  in  additional
indications.  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 COSELA 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, 2022, we had cash and cash equivalents of $94.6 million and marketable securities of $50.5 million. We believe that, based upon our
current operating plan, our existing capital resources will not be sufficient to fund our planned operations and remain in compliance with our objective
financial covenants for the next 12 months from the date of issuance of these financial statements. 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  COSELA  is  highly  uncertain,  we  are  unable  to  estimate  the  actual  funds  we  will
require for commercialization and development of COSELA. 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
for which we receive marketing approval;
the scope, progress, results and costs of development, laboratory testing and clinical trials for COSELA;
the scope, prioritization and number of our research and development programs;
the costs, timing and outcome of regulatory review of COSELA;
the extent to which we enter into non-exclusive, jointly funded clinical research collaboration arrangements, if any, for the
development of COSELA in combination with other companies’ products;
our ability to establish collaboration arrangements for the development of COSELA 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, and the terms of such in-licenses;
revenue received from commercial sales of COSELA and any future 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.

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.

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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 future 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.

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  $147.6  million  for  the  year  ended  December  31,  2022,
$148.4 million for the year ended December 31, 2021, and $99.3 million for the year ended December 31, 2020. As of December 31, 2022, we had an
accumulated deficit of $732.0 million. 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.

To date, inflation has not had a material impact on our business, but if the global inflationary trends continue, we expect appreciable increases in clinical
trial, selling, labor, and other operating costs. If our costs were to become subject to significant inflationary pressures, we may not be able to fully offset
such higher costs through price increases of our product. Our inability or failure to do so could adversely affect our business, financial condition and results
of operations.

In addition, currently there is a conflict involving Russia and Ukraine, and this may impact our contract research organizations, clinical data management
organizations, and clinical investigators’ ability to conduct certain of our trials in Eastern European countries, and may prevent us from obtaining data on
patients already enrolled at sites in these countries. This could negatively impact the completion of our clinical trials and/or analyses of clinical results,
which may increase our product development costs and materially harm our business.

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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continue development of trilaciclib, including initiations of additional clinical trials
identify and develop new product candidates;
seek additional marketing approvals for trilaciclib upon successful completion of clinical trials;
grow our sales, marketing and distribution infrastructure to commercialize COSELA and any future products for which we
may obtain marketing approval;
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;
identify and develop new product candidates;
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.

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.

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

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.

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

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, grant rights to develop and market product 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 financial condition raises substantial doubt as to our ability to continue as a going concern.

We may be forced to delay or reduce the scope of our development programs and/or limit or cease our operations if we are unable to obtain additional
funding to support our current operating plan. We have identified conditions and events that raise substantial doubt about our ability to continue as a going
concern.

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We  have  experienced  net  losses  since  inception  and  have  an  accumulated  deficit  of  $732.0  million  and  $584.5  million  as  of  December  31,  2022  and
December  31,  2021,  respectively.  We  expect  to  incur  losses  and  have  negative  net  cash  flows  from  operating  activities  as  we  execute  on  our  strategy
including engaging in further research and development activities, particularly conducting non-clinical studies and clinical trials. Our success depends on
the  ability  to  successfully  commercialize  our  technologies  to  support  our  operations  and  strategic  plan.  As  of  the  date  of  issuance  of  these  financial
statements, we expect that our cash and cash equivalents and marketable securities as of December 31, 2022 will not be sufficient to fund our planned
operations and remain in compliance with our objective financial covenants for the next 12 months from the date of issuance of these financial statements.
Based on the foregoing, we have concluded that substantial doubt exists about our ability to continue as a going concern for a period of at least 12 months
from the date of issuance of these financial statements. 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. There can be no assurances that we will be able to secure such additional financing if at all,
or on terms that are satisfactory to us, and that it will be sufficient to meet our needs. In the event we are not successful in obtaining sufficient funding, this
could force us to delay, limit, or reduce our product development, commercialization efforts or other operations, and could result in the default of our loan
payable. Our financial statements have been prepared assuming that we 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.  The  financial  statements  do  not  include  any  adjustments  relating  to  the
recoverability  and  classification  of  recorded  asset  amounts  or  the  amounts  and  classification  of  liabilities  that  might  result  from  the  outcome  of  the
uncertainties described above. In connection with the Loan Payable described in Note 8, we are required to remain in compliance with a minimum cash
covenant and a minimum monthly net product revenue covenant (determined in accordance with U.S. GAAP), measured on a trailing six-month basis. The
lender  also  has  the  ability  to  call  debt  based  on  a  material  adverse  change  clause,  which  is  subjectively  defined.  If  we  are  not  in  compliance  with  the
monthly net revenue covenant, the minimum cash covenant, or the subjective acceleration clauses are triggered under the agreement, then the lender may
call the debt resulting in us immediately needing additional funds. As of December 31, 2022, we were in compliance with all covenants.

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 Fourth Amendment to the Loan and Security Agreement with Hercules Capital, Inc. (the "Hercules Loan Agreement") for up to
$150.0  million  of  debt  under  a  term  loan.  The  maturity  date  of  the  Hercules  Loan  Agreement  is  November  1,  2026.  As  of  December  31,  2022,  the
Company has borrowed $75.0 million under the Hercules Loan Agreement. Our 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. As of December 31, 2022, we were in compliance with all covenants. 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 under the Hercules Loan Agreement, to be immediately due and payable. Any such occurrence
would have an adverse impact on our financial condition.

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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.

Our ability to use our net operating loss carryforwards and other tax attributes may be limited, and changes in tax laws could adversely impact our
business and financial position.

The  Internal  Revenue  Service  or  other  tax  authority  may  review  and  adjust  our  net  operating  loss  and  tax  credit  carryforwards  pursuant  to  the  Internal
Revenue Code of 1986 (the “Code”). In the event of an “ownership change” under Section 382 of the Code (“Section 382”), we may be subject to annual
limitations on our ability to utilize net operating loss and tax credit carryforwards. An ownership change constitutes a change in the ownership interest of
significant shareholders in excess of 50 percent on a cumulative basis over a three-year period. 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. We continue 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. As of December 31, 2022, our federal and state net operating loss carryforwards amounted to $545.1 million and $369.4 million, respectively.
Other  changes  in  the  ownership  of  our  stock  may  have  caused  an  ownership  change  in  the  past  or  could  cause  one  in  the  future.  Additional  ownership
changes under Section 382 could further limit our ability to reduce future tax liabilities by utilizing our net operating loss carryforwards.

In addition, our capacity to utilize our net operating loss carryforwards and other tax attributes could be limited due to statutory and regulatory changes. For
example,  among  other  things,  the  Tax  Cuts  and  Jobs  Act  of  2017  (the  “TCJA”)  comprehensively  changed  U.S.  federal  tax  rates,  permitted  capital
expenditures to be expensed, and restricted tax deductions for net interest expense and net operating losses. The CARES Act of 2020 was enacted to restore
the ailing U.S. economy during the COVID-19 pandemic. Among other things, the CARES Act temporarily eased the TCJA’s restrictions on net interest
expense tax deductions and altered the payroll tax scheme. Congress may enact additional tax legislation, and we cannot predict how future amendments in
tax laws and regulations will impact our business and financial position.

Risks related to development of COSELA

If we are unable to successfully commercialize additional indications for COSELA 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 COSELA. Our ability to generate product revenues will
depend on the successful development and commercialization of COSELA. COSELA 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.

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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:

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maintain robust sales, distribution and marketing capabilities, either on our own or in collaboration with strategic partners;
gain acceptance for COSELA by patients, the medical community and third-party payors;
compete effectively with other therapies;
execute development activities for COSELA, including successful enrollment in and completion of clinical trials;
obtain  required  marketing  approvals  for  the  development  and  commercialization  of  additional  indications  for  COSELA,
which may become more difficult considering the discontinuation of the trial in first line metastatic colorectal cancer;
obtain and maintain patent and trade secret protection and regulatory exclusivity for COSELA 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 COSELA;
develop and maintain any strategic relationships;
enforce and defend intellectual property rights and claims; and
manage our spending as costs and expenses increase due to preclinical development, clinical trials, marketing approvals 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 COSELA, which would materially harm our business.

If  we  experience  delays  or  difficulties  in  the  enrollment  of  patients  in  clinical  trials,  development  of  COSELA  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 COSELA 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  COSELA  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 COSELA 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 development of COSELA and the 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.

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Interim, “topline” and preliminary data from our clinical trials that we announce or publish from time to time may change as more patient data
become available and are subject to audit and verification procedures that could result in material changes in the final data.

From time to time, we may publicly disclose preliminary or topline data from our preclinical studies and clinical trials, which is based on a preliminary
analysis of then-available data, and the results and related findings and conclusions are subject to change following a more comprehensive review of the
data related to the particular study or trial. We make assumptions, estimations, calculations and conclusions as part of our analyses of data, and we may not
have received or had the opportunity to fully and carefully evaluate all data. As a result, the topline or preliminary results that we report may differ from
future results of the same studies, or different conclusions or considerations may qualify such results, once additional data have been received and fully
evaluated.  Topline  data  also  remain  subject  to  audit  and  verification  procedures  that  may  result  in  the  final  data  being  materially  different  from  the
preliminary data we previously published or reported. As a result, topline data should be viewed with caution until the final data are available.

From time to time, we may also disclose interim data from our preclinical studies and clinical trials. Interim data from clinical trials that we may complete
are  subject  to  the  risk  that  one  or  more  of  the  clinical  outcomes  may  materially  change  as  patient  enrollment  continues  and  more  patient  data  become
available. Adverse differences between preliminary or interim data and final data could significantly harm our business prospects. Further, disclosure of
interim data by us could result in volatility in the price of our common stock.

Further,  others,  including  regulatory  agencies,  may  not  accept  or  agree  with  our  assumptions,  estimates,  calculations,  conclusions  or  analyses  or  may
interpret or weigh the importance of data differently, which could impact the value of the particular program, the approvability or commercialization of
COSELA and our company in general. In addition, the information we choose to publicly disclose regarding a particular study or clinical trial is based on
what  is  typically  extensive  information,  and  you  or  others  may  not  agree  with  what  we  determine  is  material  or  otherwise  appropriate  information  to
include in our disclosure.

If  the  interim,  topline,  or  preliminary  data  that  we  report  differ  from  actual  results,  or  if  others,  including  regulatory  authorities,  disagree  with  the
conclusions reached, our ability to obtain approval for, and commercialize, COSELA may be harmed, which could harm our business, operating results,
prospects or financial condition.

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 COSELA in clinical trials. There can be no assurance that any of our clinical trials will ultimately be successful or support
further clinical development of COSELA. For example, even though the topline results from the pivotal Phase 3 trial in colorectal cancer (PRESERVE 1)
showed that COSELA achieved its co-primary endpoints related to severe neutropenia with statistical significance and mean duration of severe neutropenia
in  Cycles  1  through  4,  early  anti-tumor  efficacy  data  favor  patients  receiving  placebo  compared  to  trilaciclib  and  led  to  the  decision  to  discontinue
PRESERVE 1. 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.

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 COSELA in additional indications.

The  risk  of  failure  in  drug  development  is  high.  Before  obtaining  marketing  approval  from  regulatory  authorities  for  the  sale  of  COSELA,  we  must
complete preclinical development and conduct extensive clinical trials to demonstrate the safety and efficacy of COSELA 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 COSELA 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.

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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
in additional indications or commercialize COSELA. 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 COSELA 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 COESLA 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 COSELA or other materials necessary to conduct clinical trials 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 COSELA in additional indications. 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  COSELA  beyond  those  that  we  currently  contemplate,  if  we  are  unable  to
successfully complete clinical trials of COSELA 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 COSELA in additional indications;
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 COSELA or
allow our competitors to bring products to market before we do and impair our ability to successfully commercialize COSELA and may harm our business
and results of operations.

We may not be able to identify additional therapeutic indications for COSELA or to expand our portfolio of product candidates.

We  are  conducting  a  number  of  clinical  trials  to  identify  new  therapeutic  indications  for  COSELA  and  to  expand  our  portfolio  of  product  candidates.
However,  we  may  be  unsuccessful  in  developing  additional  therapeutic  indications  for  COSELA.  For  example,  our  early  anti-tumor  efficacy  data  in
colorectal cancer showed patients receiving placebo are favored compared to trilaciclib and led to the decision to discontinue PRESERVE 1. In addition,
we  may  be  unsuccessful  in  developing  COSELA  for  breast  cancer,  and  bladder  cancer  may  have  shown  potential  for  therapeutic  opportunities  yet  our
clinical trials in these possible additional therapeutic indications may ultimately fail. Moreover, such clinical trials require the use of significant financial,
human, and technical resources. Even if we are able to identify new opportunities, COSELA will not be commercially available in these indications for a
number of years due to extensive clinical testing requirements and regulatory approvals. Additionally, we may focus our limited efforts and resources on a
new  therapeutic  indication  that  is  ultimately  unsuccessful.  Therefore,  we  cannot  guarantee  that  we  will  ever  be  able  to  identify  and  develop  additional
therapeutic indications for COSELA or expand our portfolio of product candidates, which could adversely impact our future growth and prospects.

Our  development  of  COSELA,  a  CDK4/6  inhibitor  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:

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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.

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Risks related to marketing approval of COSELA for additional indications

If  we  are  not  able  to  obtain,  or  if  there  are  delays  in  obtaining,  additional  required  marketing  approvals  for  COSELA,  we  will  not  be  able  to
commercialize it in other indications, and our ability to generate revenue will be materially impaired.

COSELA and the activities associated with its development and commercialization, including 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 COSELA in
additional  indications,  it  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 COSELA in additional indications will prevent us from commercializing it in those indications. For example, our early anti-tumor
efficacy data in colorectal cancer showed patients receiving placebo were favored compared to trilaciclib and led to the decision to discontinue PRESERVE
1. 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 product 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.  COSELA  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 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. COSELA may
be delayed in receiving, or fail to receive, marketing approval in additional indications for many reasons, including the following:

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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 COSELA
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 COSELA’s clinical and other benefits outweigh its safety risks;
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  COSELA  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 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  for  additional  indications,  regulatory  authorities,  may  grant  approval  contingent  on  the  performance  of
costly  post-marketing  clinical  trials,  or  may  approve  a  label  that  does  not  include  the  labeling  claims  necessary  or  desirable  for  the  successful
commercialization of COSELA. Any of the foregoing scenarios could materially harm the commercial prospects of COSELA.

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

If COSELA is approved for additional indications, it may 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.

Commercialization  activities  for  COSELA,  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 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:

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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 additional
indications for COSELA. 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 COSELA 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  COSELA,  restrict  or  regulate  post-approval  activities  and  affect  our  ability  to
profitably sell COSELA.

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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 COSELA are the following:

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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;
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.

The recently-passed Infrastructure Investment and Jobs Act may impact our future strategies and results of operations as it pertains to COSELA. Passed by
the  117th  United  States  Congress  and  signed  into  law  by  President  Joe  Biden  on  November  15,  2021,  the  Infrastructure  Investment  and  Jobs  Act  is
landmark legislation which may significantly impact the pharmaceutical industry.

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. One significant example of recent legislative action is the Inflation Reduction Act of
2022 (the "IRA"), which was signed into law in August 2022. While the IRA is still subject to rulemaking (with more information to come via guidance
documents from the responsible federal agencies), the IRA, as written, will, among other things, allow the United States Department of Health and Human
Services ("HHS") to negotiate the selling price of certain drugs and biologics that the Centers for Medicare & Medicaid Services ("CMS") reimburse under
Medicare Part B and Part D, although only high-expenditure single-source drugs that have been approved for at least 7 years (11 years for biologics) can be
selected  by  CMS  for  negotiation,  with  the  negotiated  price  taking  effect  two  years  after  the  selection  year.  The  IRA  will  also  require  manufacturers  of
certain Part B and Part D drugs to issue to HHS rebates based on certain calculations and triggers (i.e., when drug prices increase and outpace the rate of
inflation). At this time, we cannot predict the implications the IRA provisions will have on our business.

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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  product  may  cause  undesirable  side  effects  that  could  delay  or  prevent  its  marketing  approval  for  additional  indications,  limit  its  commercial
profile, or result in significant negative consequences following marketing approval, if any.

Undesirable side effects caused by our product could cause us or the FDA or other regulatory authorities to interrupt, delay or halt our clinical trials for any
additional indications 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 in additional indications. Results of our ongoing clinical trials could reveal a high and unacceptable severity and prevalence of these or other
side effects we may observe when trilaciclib is administered in the other tumor types and treatment combinations. 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  for  any  or  all  additional  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
trilaciclib  may  only  be  uncovered  with  a  significantly  larger  number  of  patients  exposed  to  the  product.  If  our  product  receives  marketing  approval  in
additional indications and we or others identify undesirable side effects caused by such product (or any other similar drugs) after such approval, a number
of potentially significant negative consequences could result, including:

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regulatory authorities may withdraw or limit their approval of such product;
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  is  distributed  or  administered,  conduct  additional  clinical  trials  or
change the labeling of the product;
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 the product from the marketplace after it is approved;
we could be sued and held liable for injury caused to individuals exposed to or taking our product; and
our reputation may suffer.

We believe that any of these events could prevent us from achieving or maintaining market acceptance of COSELA in ES-SCLC and could substantially
increase the costs of gaining marketing approval for COSELA in additional indications and significantly impact our ability to successfully commercialize
COSELA and generate revenues in other tumor types and treatment combinations.

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The FDA and other government agencies could prevent the timely development and commercialization of new indications of COSELA due to concerns
about the quality of that data from clinical trials performed in China.

Numerous factors, including regulatory and policy changes, could impact the likelihood and timing of obtaining FDA approval of additional indications for
COSELA. The FDA has recently expressed reservations regarding the quality of data from clinical trials conducted in China for the development of cancer
treatments.  In  August  2020,  we  entered  into  a  license  agreement  with  Nanjing  Simcere  Dongyuan  Pharmaceutical  Co.,  Ltd.  (“Simcere”),  for  the
development and commercialization of COSELA in Greater China. In addition, we have collaborated with Simcere in China to help us develop additional
indications for COSELA. We are dependent on Simcere’s ability to comply with applicable foreign and U.S. regulatory requirements. The FDA may be
hesitant to approve drugs that include data from clinical trials performed in China. This may require us to modify our current clinical trials to exclude the
data from China or perform additional clinical trials without Simcere’s assistance, which could be expensive and time-consuming. A delay in obtaining the
required  regulatory  approvals  could  in  turn  lead  to  delays  in  the  development  of  additional  indications  for  COSELA,  which  could  adversely  affect  us
financially.

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 in foreign markets. In order to market and sell our product 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
product 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 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 in foreign markets, we would be subject to additional risks and uncertainties,
including:

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our customers’ ability to obtain reimbursement for our product in foreign markets;
our inability to directly control commercial activities because we are relying on third parties;
the burden of complying with complex and changing foreign regulatory, tax, accounting and legal requirements;
different medical practices and customs in foreign countries affecting acceptance in the marketplace;
import or export licensing requirements;
longer accounts receivable collection times;
longer lead times for shipping;
language barriers for technical training;
reduced 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;

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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 COSELA could also be adversely affected by the imposition of governmental controls, political and economic instability, trade restrictions
and changes in tariffs.

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 commercial-stage biopharmaceutical company, and, as of December 31, 2022, had 170 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.

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.

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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. The COVID-19 pandemic has continued to evolve, with new variants (such as the Omicron variant) emerging and
spreading  more  easily  and  quickly  than  other  variants.  As  such,  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 commercial business, including, among others, the impact due to continued 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 and any variants thereof, or to otherwise limit their 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 COSELA 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,  or  inappropriate
disclosure of confidential or proprietary information, we could incur liabilities and the further development of our COSELA could be delayed.

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. If our management
is unable to effectively manage our expected expansion, our expenses may increase more than expected, our ability to 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, if approved, and compete effectively will depend, in part, on our ability to effectively manage the future expansion of our company.

We may 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 a specific product. 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.

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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 or the third parties upon which we depend may be adversely affected by general political and economic conditions and other events beyond our
control and our business continuity and disaster recovery plans may not adequately protect us from a serious disaster.

We  have  become  increasingly  subject  to  the  risks  arising  from  adverse  changes  in  economic  and  political  conditions,  both  domestically  and  globally,
including  trends  toward  protectionism  and  nationalism,  other  unfavorable  changes  in  economic  conditions,  such  as  inflation,  rising  interest  rates  or  a
recession, and other events beyond our control, such as natural disasters, pandemics such as the COVID-19 (coronavirus), epidemics, political instability,
and  armed  conflicts  and  wars,  including  the  Russia-Ukraine  war.  The  effects  of  current  and  future  economic  and  political  conditions  and  other  events
beyond our control on us, patients, our third party vendors, including clinical trial sites, and our partners 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.

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.

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If we fail to establish and maintain proper and effective internal control over financial reporting, our operating results and our ability to operate our
business could be harmed.

Adequate internal control over financial reporting are necessary for us to provide reliable financial reports and, together with effective disclosure controls
and procedures, are designed to prevent or detect material misstatements due to fraud or error. Any failure to implement required new or improved controls,
or difficulties encountered in their implementation could cause us to fail to meet our reporting obligations. In addition, any testing conducted by us in
connection with Section 404 of the Sarbanes-Oxley Act, or any subsequent testing by our independent registered public accounting firm, may reveal
deficiencies in our internal control over financial reporting that are deemed to be material weaknesses or that may require prospective or retroactive
changes to our financial statements or identify other areas for further attention or improvement. Inadequate internal controls could also cause investors to
lose confidence in our reported financial information, which could have a negative effect on the trading price of our stock.

Implementing any appropriate changes to our internal controls may distract our officers and employees, entail substantial costs to modify our existing
processes, and take significant time to complete. These changes may not, however, be effective in maintaining the adequacy of our internal controls, and
any failure to maintain that adequacy, or consequent inability to produce accurate financial statements on a timely basis, could increase our operating costs
and harm our business. In addition, investors’ perceptions that our internal controls are inadequate or that we are unable to produce accurate financial
statements on a timely basis may harm our stock price and make it more difficult for us to effectively market and sell our service to new and existing
customers.

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 COSELA. 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 commercialize our product or obtain
marketing approval for additional indications, 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 COSELA. We expect to rely heavily on these parties for performance of
clinical  trials  for  our  product.  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 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  our  product  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.

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Although we intend to design the clinical trials for COSELA, 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:

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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 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 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  in  additional
indications or successfully commercialize COSELA. As a result, we believe that our financial results and the commercial prospects for COSELA in the
subject indication would be harmed, our costs could increase and our ability to generate revenue could be delayed.

We contract with third parties for the manufacture of COSELA 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 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  for  preclinical  studies,  clinical  trials,  and  commercial  supply  of  COSELA.  This  reliance  on  third
parties increases the risk that we will not have sufficient quantities of our product 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 (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.  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  COSELA.  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  or  drugs,  if  approved,  operating  restrictions  and  criminal  prosecutions,  any  of  which  could  significantly  and
adversely affect our business and supplies of COSELA.

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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:

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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  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, we may incur added costs and delays in identifying and qualifying any
such replacements.

Our current and anticipated future dependence upon others for the manufacture of our product 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.

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 are supplied to us from single source suppliers with limited capacity. Our ability to successfully
develop our product, 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  our  product,  we  intend  to  identify  and  qualify  additional  manufacturers  to  provide  drug  substances  and  drug  products.  Establishing  additional  or
replacement  suppliers  for  drug  substances  and  drug  products  for  our  product,  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, 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.

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

In order to conduct large-scale clinical trials of COSELA, 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 of COSELA 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 in sufficient quality and quantity, the development, testing, and clinical trials of the product 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.

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We have entered into 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 COSELA will require substantial additional cash to fund expenses. We may decide
to collaborate with pharmaceutical and biotechnology companies for the development and potential commercialization of COSELA.

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. 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. Development and commercialization 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,  the  costs  and  complexities  of
manufacturing and delivering such product 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. 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
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 COSELA or bring it to market and generate drug revenue.

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.

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Lastly, disagreements between parties to a collaboration arrangement regarding clinical development and commercialization matters can lead to delays in
the  development  process  or  commercializing  a  product  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.

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 COSELA and its uses, pharmaceutical formulations and dosages, and processes for the manufacture of it. 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 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.

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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.

The  recently-passed  Inflation  Reduction  Act  may  impact  our  future  strategies  and  results  of  operations  as  it  pertains  to  COSELA.  Passed  by  the  117th
United States Congress and signed into law by President Joe Biden on August 16, 2022, the Inflation Reduction Act of 2022 is landmark legislation which
may significantly impact the pharmaceutical industry.

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 products.

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 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.

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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.

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.

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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.

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  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
COSELA  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 COSELA and lerociclib 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.

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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 COSELA, 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 COSELA, we
cannot ensure that we will be able to initiate or maintain similar efforts in all jurisdictions in which we may wish to market it. 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.

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 products, 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.

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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.

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.

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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.

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 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.

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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:

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results of preclinical and clinical trials;
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, including global economic uncertainty, rising inflation, rising
interest rates, market disruptions and volatility in commodity prices; 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.

Forecasting potential sales for COSELA is difficult, and if our projections are inaccurate, our business may be harmed and our stock price may be
adversely affected.

Our business planning requires us to forecast or make assumptions regarding product demand and revenues for COSELA, despite numerous uncertainties.
These uncertainties may be increased if we rely on third parties to conduct commercial activities in certain jurisdictions and provide us with accurate and
timely information. Actual results may differ materially from projected results for various reasons, including the following, as well as risks identified in
other risk factors:
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the efficacy and safety of COSELA, including as relative to marketed products and drug candidates in development by third
parties;
pricing (including discounting and other promotions), reimbursement, product returns or recalls, competition, labeling,
adverse events and other items that impact commercialization;
the rate of adoption in the particular market, including fluctuations in demand for various reasons;
potential market size;
lack of patient and physician familiarity with the drug product;
lack of patient use and physician prescribing history;

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lack of commercialization experience with COSELA;
uncertainty relating to when COSELA may become commercially available to patients in a particular jurisdiction and rate
of adoption; and
products provided without compensation through patient support programs or product sample programs, may not eventually
result in or contribute to revenue-producing prescriptions.

We  expect  that  our  revenues  from  sales  of  COSELA  will  be  based  in  part  on  estimates,  judgment  and  accounting  policies.  Any  incorrect  estimates  or
disagreements with regulators or others regarding such estimates, judgment or accounting policies may result in changes to our guidance, projections or
previously reported results. Expected and actual product sales and quarterly and other results may greatly fluctuate, including in the near-term, and such
fluctuations can adversely affect the price of our common stock, perceptions of our ability to forecast demand and revenues, and our ability to maintain and
fund  our  operations.  The  metrics  that  we  are  tracking  in  order  to  evaluate  the  success  of  our  sales  efforts  may  not  correlate  to  commercial  success,
particularly given the challenging market for COSELA.

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.

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:

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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

78

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 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.

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.

79

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 27, 2023, 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.

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,  2022.  Our  relative  performance  is  then  compared  with  the  Nasdaq  Composite  Index  and  the
Nasdaq Biotechnology Index.

Recent Sales of Unregistered Securities

None.

80

Equity Compensation Plans

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 2022.

Item 6. [Reserved]

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 product approved 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  (myeloprotection)  and  is  the  first  innovation  in
managing myeloprotection in decades. In July 2022, COSELA (trilaciclib hydrochloride for injection) was conditionally approved by the China National
Medical Products Administration (NMPA) for marketing in China.

Trilaciclib was 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. Controlled administration and clean G1 arrest from transient CDK4/6 inhibition can protect bone marrow and reduce
hematologic  adverse  events  (“AEs”)  caused  by  cytotoxic  therapy  and  may  increase  the  ability  to  receive  longer  treatment  durations.  Transient  CDK4/6
inhibition also may improve survival in combination with leading and emerging treatments through myeloprotection, enabling increased cytotoxic exposure
while  protecting  the  immune  system,  and/or  through  immunomodulation,  which  may  improve  patients’  overall  anti-tumor  immune  responses.  We  are
exploring the use of trilaciclib in a variety of trials across multiple tumor types and treatment combinations to optimize these potential benefits of proactive
multi-lineage myeloprotection and survival in combination with leading and emerging treatments for patients globally.

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

COSELA is a prescription medicine used to help reduce the occurrence of low blood cell counts caused by damage to bone marrow from chemotherapy.
COSELA is used to treat adults taking certain chemotherapies (platinum/etoposide or topotecan) for extensive-stage small cell lung cancer.

COSELA is an injection for intravenous (IV) use given within four hours before chemotherapy.

Commercial Product

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  ES-SCLC.  COSELA  became  commercially  available  through  our
specialty distributor network on March 2, 2021.

81

We  announced  on  March  25,  2021  that  COSELA  had  been  included  in  two  updated  National  Comprehensive  Cancer  Network®  (“NCCN”)  Clinical
Practice  Guidelines  in  Oncology  (NCCN  Guidelines®):  The  Treatment  Guidelines  for  Small  Cell  Lung  Cancer  and  the  Supportive  Care  Guidelines  for
Hematopoietic Growth Factors. These guidelines document evidence-based, consensus-driven management to ensure that all patients receive preventive,
diagnostic, treatment, and supportive services that are most likely to lead to optimal outcomes. On October 1, 2021, we announced that the permanent J-
code for COSELA that was issued in July 2021 by the Centers for Medicare & Medicaid Services (CMS) is now effective for provider billing for all sites
of care. All hospital outpatient departments, ambulatory surgery centers and physician offices in the United States have one consistent Healthcare Common
Procedure Coding System (HCPCS) code to standardize the submission and payment of COSELA insurance claims across Medicare, Medicare Advantage,
Medicaid  and  commercial  plans.  Our  new  technology  add-on  payment  (NTAP)  for  COSELA  which  provides  additional  payment  to  inpatient  hospitals
above the standard Medicare Severity Diagnosis-Related Group (MS-DRG) payment amount also became effective for provider billing on October 1, 2021.

We are also exploring potential use of trilaciclib in a variety of tumors, including breast cancer, bladder cancer, and in trials designed to inform the design
of future additional pivotal studies across multiple tumor types and treatment combinations including certain chemotherapies, checkpoint inhibitors, and
targeted chemotherapy medicines called antibody-drug conjugates (ADCs).

In  June  2020,  we  entered  into  a  three-year  co-promotion  agreement  for  COSELA  in  the  United  States  and  Puerto  Rico  with  Boehringer  Ingelheim
Pharmaceuticals,  Inc.  (“Boehringer  Ingelheim”).  In  December  2021,  the  Company  and  Boehringer  Ingelheim  mutually  agreed  to  end  the  co-promotion
agreement for COSELA, effective March 2022. At that time, we announced that we would hire and deploy our own oncology sales team to allow us to
target all accounts to accelerate sales activities and help maximize the adoption of COSELA. As of February 21, 2022, all sales representatives were hired,
trained, and deployed into their respective regions. Starting from the second quarter of 2022, the sales of COSELA have been solely conducted by the G1
COSELA sales team. As of the beginning of 2023, the sales team comprises approximately 30 sales representatives.

On  August  3,  2020,  we  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). On July 13, 2022,
the NMPA conditionally approved COSELA (trilaciclib hydrochloride for injection) for marketing in China. COSELA is indicated in China to decrease the
incidence of chemotherapy-induced myelosuppression in adult patients when administered prior to a platinum/etoposide-containing regimen for ES-SCLC.
As  a  result  of  receiving  approval  in  China,  Simcere  paid  the  Company  a  $13.0  million  milestone  (less  applicable  withholding  taxes  of  $1.3  million)
payment in the third quarter of 2022. In total, we may receive up to $156.0 million in milestone payments. We will also receive double-digit royalties on
annual net sales of COSELA in China.

Product Pipeline

Trilaciclib is a first-in-class therapy designed to help protect against chemotherapy-induced myelosuppression. Trilaciclib, a novel transient IV CDK4/6
inhibitor  has  unique  attributes  including  rapid  onset  from  IV  administration,  potent  and  selective  CDK4  and  CDK6  inhibition  and  a  short  half-life.
Controlled administration and clean G1-phase arrest reduce hematologic AEs caused by cytotoxic therapy and may increase patients’ abilities to receive
longer  treatment  durations.  Transient  CDK4/6  inhibition  also  modulates  multiple  immune  functions  ("immunomodulation")  while  allowing  beneficial  T
cell proliferation which may improve patients’ anti-tumor immune responses.

Trilaciclib  transiently  blocks  progression  through  the  cell  cycle.  This  provides  benefits  which  manifest  depending  on  the  tumor  type  and  therapeutic
backbone, including: (1) proactive multi-lineage myeloprotection to protect the bone marrow from cytotoxic damage, and (2) potentially improved survival
in combination with leading and emerging treatments.

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We  are  pursuing  trilaciclib  across  key  growth  platforms.  First,  trilaciclib  provides  proactive  multi-lineage  myeloprotection  by  transiently  arresting
hematopoietic  stem  and  progenitor  cells  (“HSPCs”),  helping  to  protect  them  from  damage  caused  by  cytotoxic  therapy  thereby  minimizing  cytopenias
across  neutrophils,  erythrocytes,  and  platelets.  These  proactive  multi-lineage  myeloprotection  benefits  were  seen  in  our  three  double-blind,  placebo-
controlled clinical trials in ES-SCLC, where highly myelosuppressive chemotherapy regimens are administered multiple days in a row. In addition, these
multilineage  myeloprotection  benefits  were  seen  in  the  initial  Phase  2  trial  of  trilaciclib  in  combination  with  the  antibody-drug  conjugate,  sacituzumab
govitecan-hziy  in  patients  with  unresectable  locally  advanced  or  metastatic  triple-negative  breast  cancer  (TNBC).  Initial  data  on  the  first  18  patients
showed a clinically meaningful on-target effect of trilaciclib to reduce (>50%) the rates of multiple adverse events compared to the previously published
sacituzumab govitecan-hziy single agent safety profile from the ASCENT trial, including myelosuppression (neutropenia, anemia, thrombocytopenia).

Second,  trilaciclib  has  the  potential  to  improve  survival  in  combination  with  leading  and  emerging  treatments,  as  a  result  of  (1)  myeloprotection,  thus
enabling increased cytotoxic exposure while protecting the immune system, and/or (2) immunomodulation, thus improving overall immune response. Its
ability to enhance the cancer immune cycle occurs through multiple factors, including (1) enhancing T cell activation (via increased antigen presentation
and secretion of IL-2 and IFNγ), (2) favorably altering the tumor microenvironment (via increased chemokines responsible for trafficking T cells to tumors
and reducing the number and function of immunosuppressive cell populations), and (3) improving long-term immune surveillance (via increased generation
of memory CD8+ T cells). We are exploring this potential survival benefit in a variety of ongoing Phase 2 and Phase 3 clinical trials. A meaningful anti-
tumor  efficacy  benefit  was  observed  in  our  Phase  2  mTNBC  study  in  which  trilaciclib  led  to  a  significant  improvement  in  overall  survival  when
administered  in  combination  with  chemotherapy  (gemcitabine/carboplatin)  compared  to  chemotherapy  alone.  These  are  the  foundational  data  for  our
ongoing PRESERVE 2 pivotal Phase 3 trial in 1L mTNBC. An interim OS analysis at 70% of events is currently anticipated in the PRESERVE 2 pivotal
Phase 3 trial in 1L mTNBC in the first half of 2024 to evaluate the effect of trilaciclib on overall survival in patients with TNBC when administered prior to
treatment with GC. If the interim OS analysis achieves the threshold of statistical significance required for the interim assessment showing that trilaciclib
has superior efficacy in overall survival, the trial will terminate, and the data will be reported. In addition, we will discuss the data with regulatory health
authorities regarding filing for potential approval of this indication.

We  are  executing  on  our  strategy  to  evaluate  the  potential  benefits  of  trilaciclib  to  patients  with  other  tumors  to  continuously  develop  new  data  with
trilaciclib  in  a  variety  of  chemotherapeutic  settings  and  in  combination  with  other  agents  to  maximize  the  applicability  of  the  drug  to  potential  future
treatment paradigms. We currently have four ongoing clinical trials: a pivotal Phase 3 trial in 1L mTNBC, a Phase 2 trial in combination with an antibody-
drug  conjugate  (“ADC”)  in  2L/3L  mTNBC,  a  Phase  2  trial  in  neoadjuvant  TNBC  designed  to  validate  trilaciclib’s  immune-based  mechanism  of  action
(“MOA”), and a Phase 2 trial in 1L bladder cancer with chemotherapy induction and a checkpoint inhibitor maintenance. These studies across treatment
settings  and  tumor  types  will  evaluate  trilaciclib’s  benefits  of  proactive  multi-lineage  myeloprotection  and  survival  in  combination  with  leading  and
emerging  treatments  via  myeloprotection  and/or  immunomodulation.  In  addition,  the  MOA  and  ADC  Phase  2  trials  will  inform  the  design  of  future
additional  pivotal  studies  across  multiple  tumor  types  and  treatment  combinations.  We  are  also  conducting  significant  preclinical  work  to  assess  the
additive/synergistic potential of trilaciclib with a variety of novel and emerging therapeutic agents to identify synergies to evaluate in future clinical trials.
New non-clinical data presented in September 2022 showed consistent synergistic potential of trilaciclib to enhance the cancer immune cycle by enhancing
T  cell  activation,  favorably  altering  the  tumor  microenvironment,  and  improving  long-term  surveillance.  Our  overall  development  approach  includes
monitoring and anticipating the evolving future standards of care across tumor types in order to design or support studies that generate important data for
trilaciclib across relevant future treatment settings and maximize future usage.

In November 2022, we provided encouraging initial safety and tolerability data from our ongoing Phase 2 trial of trilaciclib in combination with the ADC,
sacituzumab  govitecan-hziy.  Initial  data  demonstrate  the  potential  for  an  on-target  effect  of  trilaciclib  to  reduce  (>50%)  the  rates  of  adverse  events
associated  with  sacituzumab  govitecan-hziy,  including  myelosuppression,  diarrhea,  and  potentially  alopecia,  due  to  the  presence  of  CDK4/6-expressing
cells in the intestinal crypt and hair follicles, compared to the previously published sacituzumab govitecan-hziy single agent safety profile. We expect to
release a more comprehensive data set including safety and initial efficacy results, including outcome by tumor PD-L1 status, at a medical meeting in the
first half of 2023.

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In December 2022, we reported data at the annual San Antonio Breast Cancer Symposium (SABCS) from the initial dose finding Phase 2 portion of the
MOA trial, a multicenter, open-label, single-arm, neoadjuvant study where tumor tissue was obtained at baseline prior to study drug administration. Initial
results  from  the  first  twenty-four  patients  show  favorable  alterations  in  the  tumor  microenvironment  from  a  single  dose  of  monotherapy  (240  mg/m2)
trilaciclib monotherapy as measured by increases in the proportions of CD8+ T cells compared to T regulatory cells (Tregs) in patients with early-stage
TNBC. The improvement of the ratio of CD8+ T cells to Tregs may enhance the overall anti-tumor immune response and confirm the trends we observed
in preclinical studies and in peripheral blood in our Phase 2 trial in TNBC. No trilaciclib related serious adverse events have been reported. We expect the
pathologic  complete  response  results,  including  outcome  by  tumor  PD-L1  status,  to  be  available  in  the  second  quarter  of  2023,  which  we  believe  will
clarify the ability of trilaciclib to improve anti-tumor efficacy for TNBC patients in this early-stage treatment setting, particularly in combination with a
checkpoint inhibitor.

In  January  2023,  we  provided  an  initial  update  on  PRESERVE  3,  the  ongoing,  randomized,  open-label  Phase  2  study  of  first-line  platinum-based
chemotherapy and maintenance therapy with the immune checkpoint inhibitor, avelumab, administered alone, or in combination with trilaciclib, in patients
with  untreated,  locally  advanced  or  metastatic  urothelial  carcinoma  (“mUC”).  The  confirmed  overall  response  rate  (ORR)  per  RECIST  v1.1  was
comparable between arms and we believe that longer-term follow-up is required to characterize additional anti-tumor endpoints including median duration
of confirmed objective response and PFS. Though early, the safety and tolerability profile of trilaciclib administered prior to chemotherapy is generally
consistent with that expected in patients treated with gemcitabine plus cisplatin/carboplatin and avelumab maintenance for previously untreated advanced
or mUC. Additional safety and efficacy data, including the primary endpoint of PFS, are anticipated in the midyear of 2023.

On February 13, 2023 , we announced top line results from our pivotal Phase 3 PRESERVE 1 trial showing that the trial achieved its co-primary endpoints
related  to  severe  neutropenia  with  statistical  significance,  including  clinically  meaningful  and  statistically  significant  reductions  in  both  occurrence  of
severe  neutropenia  during  induction  (placebo=20%  vs.  trilaciclib=1%;  p<0.001)  and  mean  duration  of  severe  neutropenia  in  Cycles  1  through  4
(placebo=1.3  days  vs.  trilaciclib=0.1  days;  p<0.001).  Patients  receiving  trilaciclib  experienced  fewer  chemotherapy  dose  reductions  and  delays.  Other
secondary  measures  of  myeloprotection  also  favored  trilaciclib,  including  reductions  in  Febrile  Neutropenia  (placebo=5%  vs.  trilaciclib=0%)  and  ESA
administration  (placebo=7%  vs.  trilaciclib=3%).  These  results  further  validate  the  myeloprotection  benefit  of  trilaciclib.  In  addition,  patients  receiving
trilaciclib had a clinically meaningful reduction in the rate of chemotherapy-induced diarrhea, including a 50% reduction in the rate of Grade 3/4 diarrhea
and  a  30%  reduction  in  the  rate  of  any  grade  diarrhea,  compared  to  placebo.  However,  despite  the  achievement  of  the  co-primary  endpoints  and  other
secondary  measures  of  myeloprotection  and  tolerability,  early  anti-tumor  efficacy  data,  including  overall  response  rate  (ORR),  favor  patients  receiving
placebo compared to trilaciclib (61% and 50% ORRs, respectively). Given the differential in these anti-tumor efficacy metrics and the low likelihood of
achieving the progression-free survival (PFS) and overall survival (OS) endpoints, we have made the decision to discontinue PRESERVE 1.

84

Trilaciclib Development Pipeline

Candidate

Indication

Current Status

Initial Results

Additional Results

Endpoints

1L metastatic Triple
negative breast
cancer (mTNBC)

Registrational Phase
3 trial (enrollment
completed in
October 2022)

Interim OS analysis
expected in 1H 2024

trilaciclib

Antibody-drug
conjugate (ADC)
combination trial in
mTNBC

Phase 2 trial
(enrolling)

Initial safety data
announced in 4Q
2022

PFS results expected
in 2Q 2023

Mechanism of action
trial in early stage
neoadjuvant TNBC

Phase 2 trial
(enrollment
completed in August
2022)

1L Bladder cancer
(mUC)

Phase 2 trial
(enrollment
completed in August
2022)

MOA data presented
in 4Q 2022

pCR results expected
in 2Q 2023

ORR data announced
in 1Q 2023

PFS results expected
in mid-2023

Primary: OS*
Secondary: PRO,
myeloprotection,
PFS/ORR

Primary: PFS
Secondary: ORR,
OS, safety,
myeloprotection,
others

Primary: Immune-
based MOA
Secondary: pCR,
immune response,
others

Primary: PFS
Secondary: ORR,
OS, safety and
efficacy, others

Development & 
Commercialization
Rights
(all indications)

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

PFS=progression-free survival; OS=overall survival; PRO=patient reported outcome; ORR=overall response rate; pCR=pathological complete response;
MOA=mechanism of action.

*Initial results expected: (i) Phase 3 1L mTNBC trial: interim OS analysis; if the trial meets the interim analysis stopping rule, it will terminate and we will
report the topline results. If it does not, the trial will continue to the final analysis.

Lerociclib

Lerociclib is a differentiated clinical-stage 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 provide $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.

Rintodestrant

Rintodestrant is an oral SERD for use as a monotherapy and in combination with CDK4/6 inhibitors, initially Ibrance® (palbociclib), for the treatment of
ER+, HER2- breast cancer. After completing the evaluation of our rintodestrant partnering options and recent data in the highly competitive oral SERD
space, we made the strategic decision to discontinue the program. We reverted the rights back to the originator (University of Illinois Chicago) during the
third quarter of 2022; there are no additional financial obligations due to the originator resulting from the reversion.

CDK2 Inhibitor

In  2020,  we  entered  into  a  global  license  agreement  with  Incyclix  Bio,  LLC  (“Incyclix”),  formerly  ARC  Therapeutics,  LLC,  for  the  development  and
commercialization  of  an  internally  discovered  cyclin-dependent  kinase  2  (“CDK2”)  inhibitor  for  all  human  and  veterinary  uses.  Incyclix  is  currently
granted an exclusive, royalty-bearing, license with the right to grant sublicenses to one of our solely owned patent families.

85

 
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. Although we have not had any significant supply chain delays or shortages as a
result of the COVID-19 pandemic to date, we have experienced delays in the delivery of our investigational product to certain investigative sites due to
shortages  of  ancillary  materials  and  the  delay  of  governmental  inspections.  If  the  COVID-19  pandemic  continues  or  increases  in  severity,  we  could
experience  disruptions  to  our  clinical  development  timelines.  If  we  experience  delays  in  patient  enrollment,  we  could  incur  increased  clinical  program
expense  if  it  is  deemed  necessary  or  advisable  to  improve  patient  recruitment  by  opening  additional  clinical  sites.  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 govern 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.

As  of  December  31,  2022,  the  majority  of  our  employees  are  still  working  remotely,  which  may  negatively  impact  our  ability  to  conduct  research  and
development activities, engage in sales-related initiatives, or efficiently conduct day-to-day operations. In addition, we added bandwidth and VPN capacity
to our infrastructure to facilitate remote work arrangements. We will continue to monitor the impact of COVID-19 on our operations, including how it will
impact  our  employees,  clinical  trials,  development  programs,  supply  chain,  and  other  aspects  of  our  operations,  and  report  to  our  Board  of  Directors
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 selling, general and administrative support for these operations as well as securing
intellectual  property  protection  for  our  products.  Currently,  COSELA  is  our  only  product  approved  for  sale.  We  began  generating  revenue  for  the  net
product sales from COSELA in March of 2021. We recorded $31.3 million of net product sales from COSELA and $20.0 million of license revenue for the
year ended December 31, 2022, $11.1 million of net product sales from COSELA $20.4 million of license revenue for the year ended December 31, 2021,
and $45.3 million of license revenue for the year ended December 31, 2020. 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, 2022, we had cash and cash equivalents of $94.6 million and marketable securities of $50.5 million. Since inception we have incurred
net losses. Our net losses were $147.6 million, $148.4 million and $99.3 million for the years ended December 31, 2022, 2021 and 2020, respectively. As
of December 31, 2022, we had an accumulated deficit of $732.0 million. Substantially all of our net losses have resulted from costs incurred in connection
with our research and development programs, our commercial launch of COSELA, and from selling, general and administrative expenses associated with
our operations. We expect to continue to incur significant expenses and increasing operating losses. As disclosed in the Liquidity and Capital Resources
section, we have concluded that substantial doubt exists about our ability to continue as a going concern for a period of at least 12 months from the date of
issuance of these financial statements. To date, inflation has not had a material impact on our business, but if the global inflationary trends continue, we
expect  appreciable  increases  in  clinical  trial,  selling,  labor,  and  other  operating  costs.  If  our  costs  were  to  become  subject  to  significant  inflationary
pressures, we may not be able to fully offset such higher costs through price increases of our product. Our inability or failure to do so could adversely affect
our business, financial condition and results of operations.

In addition, currently there is a conflict involving Russia and Ukraine, and this may impact our contract research organizations, clinical data management
organizations, and clinical investigators’ ability to conduct certain of our trials in Eastern European countries, and may prevent us from obtaining data on
patients already enrolled at sites in these countries. This could negatively impact the completion of our clinical trials and/or analyses of clinical results,
which may increase our product development costs and materially harm our business.

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We  also  expect  our  research  and  development,  commercial  activities,  and  selling,  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 trilaciclib, including initiation of additional clinical trials;

identify and develop new product candidates;

seek additional marketing approvals for trilaciclib upon successful completion of clinical trials;

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

achieve market acceptance of our product 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 or in-license other products and technologies;

identify and develop new product candidates;

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.

Components of our Results of Operations

Revenues

On February 12, 2021, COSELA was approved by the FDA and we began generating revenue for the product sales of COSELA in March 2021. Prior to the
approval of COSELA, our revenues have been derived from our license agreements.

We  entered  into  an  exclusive  license  agreement  with  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”). Under the license agreement, Simcere agreed to pay us a non-
refundable, upfront cash payment of $14.0 million, which we received (less applicable withholding taxes of $1.4 million) in September 2020. We have the
potential to receive an additional $156.0 million upon reaching development and commercial milestones, and to receive tiered low double-digit royalties on
annual net sales of trilaciclib in the Simcere Territory. The upfront payment of $14.0 million was recognized as revenue in the fourth quarter of 2020, once
the transfer of the related technology and know-how was completed. Through December 31, 2021, we recognized an additional $8.0 million in revenue for
the  achievement  of  development  and  commercial  milestones  as  defined  by  the  license  agreement.  On  July  13,  2022,  the  NMPA  conditionally  approved
COSELA  (trilaciclib  hydrochloride  for  injection)  for  marketing  in  China.  As  a  result  of  receiving  approval  in  China,  Simcere  paid  us  a  $13.0  million
milestone  payment  (less  applicable  withholding  taxes  of  $1.3  million)  in  the  third  quarter  of  2022.  Additionally,  for  the  completion  of  manufacturing
technology transfer in the third quarter of 2022, Simcere paid us a $1.0 million (less applicable withholding taxes of $0.1 million) milestone payment in
October 2022. For the twelve months ended December 31, 2022, we recognized $14.0 million of revenue related to development milestones.

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  million  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 did not receive any development
milestones during the twelve months ended December 31, 2022.

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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. Through December 31, 2021, we recognized an additional $3.0 million in revenue for the
achievement of development and commercial milestones as defined by the license agreement. We did not receive any development milestones during the
twelve months ended December 31, 2022.

We entered into an exclusive license agreement with Incyclix, formerly ARC Therapeutics, LLC, a company primarily owned by a former board member,
in May 2020. We granted Incyclix an exclusive, worldwide, royalty-bearing license of its CDK2 inhibitor compounds in exchange for an upfront payment
and equity in Incyclix with a total value of approximately $2.1 million, which resulted in the recognition of related party revenue. We are entitled to receive
additional milestone payments and sales-based royalties, and has right of first negotiation to re-acquire these assets.

Operating expenses

We classify our operating expenses into three categories: cost of goods sold, research and development and selling, 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. In addition, costs to sell and
market COSELA are included within selling, general and administrative expense categories.

Cost of goods sold

Cost of goods sold includes direct and indirect costs related to the manufacturing and distribution of COSELA, including third-party manufacturing costs,
packaging services, freight-in, third-party logistics costs associated with COSELA, and personnel costs. Cost of goods sold may also include period costs
related to certain inventory manufacturing services and inventory adjustment charges.

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 development; and

allocated facility-related costs and overhead.

The successful development of our products is highly uncertain. Products 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 as we conduct later stage clinical trials. However, we do not believe that it is possible at this time to accurately
project  total  program-specific  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 products 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;

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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.

Selling, general and administrative expenses

Selling, 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  selling,  general  and
administrative expenses include facility-related costs not otherwise allocated to research and development expense, professional fees, commercialization
costs,  expenses  associated  with  obtaining  and  maintaining  patents  and  costs  of  our  information  systems.  We  anticipate  that  our  selling,  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.

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  2022,  2021,  and  2020  related  to  the  foreign  withholding  taxes  incurred  as  a  result  of  the  milestone  payments  received  from  the  Simcere
license agreement.

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.

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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.

License Revenue

Licenses of Intellectual Property

If  a  license  to  our  intellectual  property  is  determined  to  be  distinct  from  the  other  performance  obligations  identified  in  the  arrangement,  we  recognize
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,  we  utilize  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.  We  evaluate  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,  we  evaluate  whether  the  achievement  of  each
milestone specifically relates to our efforts to satisfy a performance obligation or transfer a distinct good or service within a performance obligation. We
evaluate each milestone to determine when and how much of the milestone to include in the transaction price. We first estimate the amount of the milestone
payment that we could receive using either the expected value or the most likely amount approach. We primarily use the most likely amount approach as
that approach is generally most predictive for milestone payments with a binary outcome. Then, we consider 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).  We  update  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,  we  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, we have not recognized any revenue
related to sales-based royalties or milestone payments based on the level of sales.

Product Sales, Net

We  sell  COSELA  to  specialty  distributors  in  the  U.S.  and,  in  accordance  with  ASC  606,  recognizes  revenue  at  the  point  in  time  when  the  customer  is
deemed  to  have  obtained  control  of  the  product.  The  customer  is  deemed  to  have  obtained  control  of  the  product  at  the  time  of  physical  receipt  of  the
product at the customers’ distribution facilities, or Free on Board (“FOB”) destination, the terms of which are designated in the contract.

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Product sales are recorded at the net selling price, which includes estimates of variable consideration for which reserves are established for (a) rebates and
chargebacks, (b) co-pay assistance programs, (c) distribution fees, (d) product returns, and (e) other discounts. Where appropriate, these estimates take into
consideration a range of possible outcomes which are probability-weighted for relevant factors such as current contractual and statutory requirements, and
forecasted customer buying and payment patterns. Overall, these reserves reflect our best estimates of the amount of consideration to which it is entitled
based on the terms of the applicable contract. The amount of variable consideration may be constrained and is included in the net sales price only to the
extent that it is probable that a significant reversal in the amount of the cumulative revenue recognized will not occur in a future period. Actual amounts of
consideration ultimately received may differ from our estimates. If actual results in the future vary from estimates, we adjust these estimates, which would
affect net product revenue and earnings in the period such variances become known.

Liabilities related to co-pay assistance, rebates, and GPO fees are classified as “Accrued Expenses” in the Balance Sheets. Discounts such as chargebacks,
returns, and specialty distributor fees are recorded as a reduction to trade accounts receivable, which is included in “Accounts Receivable” in the Balance
Sheets.

Forms of Variable Consideration

Rebates  and  Chargebacks:  We  estimate  reductions  to  product  sales  for  Public  Health  Service  Institutions,  such  as  Medicaid,  Medicare  and  Veterans
Administration (“VA”) programs, as well as certain other qualifying federal and state government programs, and other group purchasing organizations. We
estimate these reductions based upon our contracts with government agencies and other organizations, statutorily defined discounts and estimated payor
mix. These organizations purchase directly from our specialty distributors at a discount and the specialty distributors charge us back the difference between
the wholesaler price and the discounted price. Our liability for Medicaid rebates consists of estimates for claims that a state will make. We reserve for this
discounted pricing is based on expected sales to qualified healthcare providers and the chargebacks that customers have already claimed.

Co-pay assistance: Eligible patients who have commercial insurance may receive assistance from us to reduce the patient’s out of pocket costs. Liabilities
for co-pay assistance are calculated by actual program participation from third-party administrators.

Distribution Fees: We have written contracts with its customers that include terms for distribution fees and costs for inventory management. We estimate
and record distribution fees due to its customers based on gross sales.

Product Returns: We generally offers a right of return based on the product’s expiration date and certain spoilage and damaged instances. We estimate the
amount of product sales that may be returned and record the estimate as a reduction of product sales in the period the related product sales are recognized.
Our  estimates  for  expected  returns  are  based  primarily  on  an  ongoing  analysis  of  sales  information  and  visibility  into  the  inventory  remaining  in  the
distribution channel.

Cost of Goods Sold

Cost of goods sold includes direct and indirect costs related to the manufacturing and distribution of COSELA, including third-party manufacturing costs,
packaging services, freight-in, third-party logistics costs associated with COSELA, and our personnel costs. Cost of goods sold may also include period
costs related to certain inventory manufacturing services and inventory adjustment charges. In connection with the FDA approval of COSELA on February
12, 2021, we subsequently began capitalizing inventory manufactured or purchased after this date. As a result, certain manufacturing costs associated with
product shipments of COSELA were expensed prior to FDA approval and, therefore, are not included in cost of goods sold during the current period.

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.

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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.

Debt

The  Company  classifies  its  loan  payable  in  current  or  long-term  liabilities  based  on  the  timing  of  scheduled  principal  payments.  The  loan  and  security
agreement (the "Loan Agreement") with Hercules Capital contains events of default, including a material adverse change, which is subjectively defined, in
the Company’s business, payment defaults, and breaches of covenants following any applicable cure period. In the event of default by the Company under
the Loan Agreement, the Company may be required to repay all amounts then outstanding under the Loan Agreement. The Company has determined that
subjective  acceleration  under  the  material  adverse  events  clause  included  in  the  Loan  Agreement  is  not  probable  and,  therefore,  has  classified  the
outstanding principal amount in long-term liabilities based on the timing of scheduled principal payments.

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 $20.6 million, $22.3 million and $18.8 million for the years ended December 31, 2022, 2021
and 2020, respectively.

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:

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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;

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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 10 – 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, 2022, 2021 and 2020.

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, 2022, we have federal net operating loss carryforwards (“NOLs”) of approximately $545.1 million, which are available to offset future
taxable income. Of the $545.1 million available, $95.4 million will begin to expire in 2029. The remaining $449.7 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 $369.4 million,
which are available to offset future state taxable income. The state net operating loss carryforwards are inclusive of North Carolina net operating losses,
which are recorded at zero benefit, as discussed in the income tax footnote. 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, 2022, we also had federal research and development (R&D) credit carryforwards of approximately $20.5 million available to offset future
income tax which begin to expire in 2035.

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.

93

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 and tax credits as we believe that it is more likely than not that all of the deferred tax asset associated with them will not
be realized regardless of whether an “ownership change” has occurred.

Results of operations

Comparison of the year ended December 31, 2022 and December 31, 2021

Revenues

Product sales, net
License revenue

Total revenues

Operating expenses

Cost of goods sold
Research and development
Selling, 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

Product sales, net

Year Ended December 31,

2022

2021

(in thousands)

Change

$

$

31,337  $
19,964 

51,301 

11,120  $
20,356 

31,476 

3,748 
83,316 
100,415 

187,479 

(136,178)

748 
(10,432)
3 

(9,681)

(145,859)
1,700 

2,016 
76,225 
95,692 

173,933 

(142,457)

43 
(4,667)
(346)

(4,970)

(147,427)
925 

$

(147,559) $

(148,352) $

20,217 
(392)

19,825 

1,732 
7,091 
4,723 

13,546 

6,279 

705 
(5,765)
349 

(4,711)

1,568 
775 

793 

Product  sales,  net  was  $31.3  million  and  $11.1  million  for  the  years  ended  December  31,  2022  and  December  31,  2021,  respectively.  The  increase  of
$20.2  million,  or  182%,  was  primarily  due  to  increased  sales  volume  as  we  continued  our  commercialization  efforts.  We  received  FDA  approval  of
COSELA on February 12, 2021 and the product has been commercially available since March 2, 2021.

License revenue

License  revenue  was  $20.0  million  and  $20.4  million  for  the  years  ended  December  31,  2022  and  December  31,  2021,  respectively.  License  revenue
decreased $0.4 million, or 2%. License revenue recognized in the current year was primarily related to $14.0 million in milestone payments from Simcere.
We  also  recognized  $2.4  million  and  $2.3  million  in  clinical  trial  costs  reimbursed  by  EQRx  and  Simcere,  respectively.  Additionally,  we  recognized
$1.3 million in supply, manufacturing services and patent reimbursable costs from EQRx, Genor, and Simcere. License revenue recognized in the prior year
was primarily related to $11.0 million in milestone payments from Genor and Simcere. We also recognized $2.5 million and $1.0 million in clinical trial
costs reimbursed by EQRx and Simcere, respectively. Additionally, we recognized $5.9 million in supply, manufacturing services and patent reimbursable
costs from EQRx, Genor, and Simcere.

94

Cost of goods sold

Cost  of  goods  sold  was  $3.7  million  and  $2.0  million  for  the  years  ended  December  31,  2022  and  December  31,  2021,  respectively.  The  increase  of
$1.7 million, or 85%, was primarily due to an increase in units sold and an increase in overhead.

Research and development

Research  and  development  expenses  were  $83.3  million  for  the  year  ended  December  31,  2022  as  compared  to  $76.2  million  for  the  year  ended
December  31,  2021.  The  increase  of  $7.1  million,  or  9%,  was  primarily  due  to  an  increase  of  $10.8  million  in  our  clinical  program  costs,  offset  by  a
decrease of $3.2 million for manufacturing of active pharmaceutical ingredient and drug product to support our clinical trials and a decrease 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 Program Expenses—trilaciclib
Clinical Program Expenses—rintodestrant
Clinical Program Expenses—lerociclib
Chemical Manufacturing and Development
Discovery, Pre-Clinical and Other Expenses
Total Research and Development Expenses

Selling, general and administrative

Year Ended December 31,

2022

2021

(in thousands)

$

$

73,498  $
2,110 
2,553 
2,707 
2,448 

83,316  $

60,911 
3,132 
3,330 
5,883 
2,969 

76,225 

Selling, general and administrative expenses were $100.4 million for the year ended December 31, 2022 as compared to $95.7 million for the year ended
December 31, 2021. The increase of $4.7 million, or 5%, was due to an increase of $12.5 million in personnel related costs due to increased headcount, and
an increase of $2.6 million in office and other administrative expenses, of which $1.7 million related to travel expenses. These increases were offset by a
decrease of $7.3 million in commercialization activities, a decrease of $1.7 million in information technology systems and related expenses, and a decrease
of $1.4 million in medical affairs costs related to trilaciclib, professional services, and taxes.

Total other income (expense), net

Total other income (expense), net was $(9.7) million for the year ended December 31, 2022 as compared to $(5.0) million for the year ended December 31,
2021. The change of $4.7 million, or 94%, was primarily driven and increase in interest expense on loan payable due to higher principal balance in 2022 as
compared to 2021.

Income tax expense

Income  tax  expense  was  $1.7  million  for  the  year  ended  December  31,  2022  as  compared  to  $0.9  million  for  the  year  ended  December  31,  2021.  The
increase of $0.8 million, or 89%, in foreign tax withholdings incurred is a result of an increase in license revenue recognized from Simcere as compared to
the prior year.

95

Comparison of the year ended December 31, 2021 and December 31, 2020

Revenues:

Product sales, net
License revenue

Total revenues

Operating Expenses:
Cost of goods sold
Research and Development
Selling, 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

Product sales, net

Year Ended December 31,

2021

2020

(in thousands)

Change

$

$

11,120  $
20,356 

31,476 

—  $

45,285 

45,285 

2,016 
76,225 
95,692 

173,933 

(142,457)

43 
(4,667)
(346)

(4,970)

(147,427)
925 

— 
73,271 
68,490 

141,761 

(96,476)

952 
(1,778)
(542)

(1,368)

(97,844)
1,410 

$

(148,352) $

(99,254) $

11,120 
(24,929)

(13,809)

2,016 
2,954 
27,202 

32,172 

(45,981)

(909)
(2,889)
196 

(3,602)

(49,583)
(485)

(49,098)

Product sales, net was $11.1 million and $0 for the years ended December 31, 2021 and December 31, 2020, respectively. The sales revenue recognized in
the year ended December 31, 2021, was related to the product sales of COSELA. We received FDA approval of COSELA on February 12, 2021 and the
product has been commercially available since March 2, 2021.

License revenue

License  revenue  was  $20.4  million  and  $45.3  million  for  the  years  ended  December  31,  2021  and  December  31,  2020,  respectively.  License  revenue
decreased $24.9 million, or 55%. License revenue recognized in the year ended December 31, 2021, was primarily related to $11.0 million in milestone
payments from Genor and Simcere. We also recognized $2.5 million and $1.0 million in clinical trial costs reimbursed by EQRx and Simcere, respectively.
Additionally,  we  recognized  $5.9  million  in  supply,  manufacturing  services  and  patent  reimbursable  costs  from  EQRx,  Genor,  and  Simcere.  License
revenue recognized in 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 related technology and know-how which occurred during the
period. We also recognized $1.3 million for clinical trial costs reimbursed by EQRx 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.

Cost of goods sold

Cost of goods sold was $2.0 million and $0 for the years ended December 31, 2021 and December 31, 2020, respectively. Cost of goods sold includes our
third-party logistics costs for the sales of COSELA, inventory overhead costs, and personnel costs.

96

Research and development

Research  and  development  expenses  were  $76.2  million  for  the  year  ended  December  31,  2021  as  compared  to  $73.3  million  for  the  year  ended
December  31,  2020.  The  increase  of  $2.9  million,  or  4%,  was  primarily  due  to  an  increase  of  $20.0  million  in  our  clinical  program  costs,  offset  by  a
decrease  of  $16.2  million  for  manufacturing  of  active  pharmaceutical  ingredient  and  drug  product  to  support  our  clinical  trials  and  a  decrease  of
$0.9 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

Selling, general and administrative

Year Ended December 31,

2021

2020

(in thousands)

$

$

60,911  $
3,132 
3,330 
5,883 
2,969 

76,225  $

34,292 
7,005 
6,092 
22,040 
3,842 

73,271 

Selling, general and administrative expenses were $95.7 million for the year ended December 31, 2021 as compared to $68.5 million for the year ended
December 31, 2020. The increase of $27.2 million, or 40%, was due to an increase of $12.7 million in personnel related costs due to increased headcount,
of  which  $5.4  million  related  to  non-cash  stock  compensation  expense,  an  increase  of  $12.1  million  in  commercialization  activities,  an  increase  of
$2.2 million in information technology systems and related expenses, and an increase of $0.2 million medical affairs costs related to trilaciclib, professional
services, insurance, and other administrative costs.

Total other income (expense), net

Total other income (expense), net was $(5.0) million for the year ended December 31, 2021 as compared to $(1.4) million for the year ended December 31,
2020. The change of $3.6 million, or 263%, was primarily driven and increase in interest expense on loan payable due to higher principal balance in 2021
as compared to 2020.

Income tax expense

Income  tax  expense  was  $0.9  million  for  the  year  ended  December  31,  2021  as  compared  to  $1.4  million  for  the  year  ended  December  31,  2020.  The
decrease of $0.5 million, or 34%, in foreign tax withholdings incurred is a result of a decrease in license revenue recognized from Simcere as compared to
the prior.

97

Liquidity and Capital Resources

We have experienced net losses since our inception, and have an accumulated deficit of $732.0 million and $584.5 million as of December 31, 2022 and
December  31,  2021,  respectively.  We  expect  to  incur  losses  and  have  negative  net  cash  flows  from  operating  activities  as  we  execute  on  our  strategy
including engaging in further research and development activities, particularly conducting non-clinical studies and clinical trials. Our success depends on
the  ability  to  successfully  commercialize  our  technologies  to  support  our  operations  and  strategic  plan.  As  of  the  date  of  issuance  of  these  financial
statements, we expect that our cash and cash equivalents and marketable securities as of December 31, 2022 will not be sufficient to fund our planned
operations and remain in compliance with our objective financial covenants for at least the next 12 months from the date of issuance of these financial
statements. Based on the foregoing, we have concluded that substantial doubt exists about our ability to continue as a going concern for a period of at least
12 months from the date of issuance of these financial statements. 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. There can be no assurances that we will be able to secure such additional financing if at all,
or on terms that are satisfactory to us, and that it will be sufficient to meet our needs. In the event we are not successful in obtaining sufficient funding, this
could force us to delay, limit, or reduce our product development, commercialization efforts or other operations and could result in the default of our loan
payable. Our financial statements have been prepared assuming that we 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.  The  financial  statements  do  not  include  any  adjustments  relating  to  the
recoverability  and  classification  of  recorded  asset  amounts  or  the  amounts  and  classification  of  liabilities  that  might  result  from  the  outcome  of  the
uncertainties described above. In connection with the Loan Payable described in Note 8, we are required to remain in compliance with a minimum cash
covenant and a minimum monthly net product revenue covenant (determined in accordance with U.S. GAAP), measured on a trailing six-month basis. The
lender  also  has  the  ability  to  call  debt  based  on  a  material  adverse  change  clause,  which  is  subjectively  defined.  If  we  are  not  in  compliance  with  the
monthly net revenue covenant, the minimum cash covenant, or the subjective acceleration clauses are triggered under the agreement, then the lender may
call the debt resulting in us immediately needing additional funds. As of December 31, 2022, we were in compliance with all covenants.

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,  Inc.  (“Hercules”),  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.

Shelf registration statement

On July 2, 2021, we filed an automatically effective shelf registration statement (the “2021 Form S-3”) with the Securities and Exchange Commission (the
“SEC”). Each issuance under the shelf registration statement would have required the filing of a prospectus supplement identifying the amount and terms of
securities to be issued. The 2021 Form S-3 did not limit the amount of securities that could have been issued thereunder.

Since we no longer qualified as a “well-known seasoned issuer” as such term is defined in Rule 405 under the Securities Act of 1933, as amended, at the
time of the filing of our 2021 Form 10-K in February 2022, we filed an automatic post-effective amendment to the 2021 Form S-3 on Form POSASR prior
to the filing of our 2021 Form 10-K, which became effective upon filing, to register for sale up to $300.0 million of any combination of our common stock,
preferred stock, debt securities, warrants, rights and/or units from time to time and at prices and on terms that we may determine and, as required by SEC
rules,  and  another  post-effective  amendment  to  the  2021  Form  S-3  on  Form  POS  AM  after  the  filing  of  our  2021  Form  10-K.  The  post-effective
amendment to the 2021 Form S-3 on Form POS AM was declared effective by the SEC on May 3, 2022 and the 2021 Form S-3 will remain in effect for up
to three years from the date it originally became effective, which was July 2, 2021.

At-the-market offerings

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 (the "2018 Sales Agreement"). Between June 18, 2018 and August 2, 2018, we sold 752,008 shares of common stock pursuant
to the 2018 Sales 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.

98

Between  January  14,  2021  and  February  9,  2021,  we  sold  3,513,027  shares  of  common  stock  pursuant  to  the  2018  Sales  Agreement  resulting  in  $86.4
million in net proceeds. As of February 9, 2021, we used the entirety of the remaining availability under the 2018 Sales Agreement with Cowen.

In connection with the 2021 Form S-3, on July 2, 2021, we entered into a sales agreement for “at the market offerings” with Cowen, which allowed us to
issue and sell shares of common stock pursuant to the 2021 Form S-3 for total gross sales proceeds of up to $150.0 million from time to time through
Cowen, acting as our agent (the “2021 Sales Agreement”). We did not sell any shares of common stock or other securities under the 2021 Sales Agreement
and  we  terminated  the  2021  Sales  Agreement  on  February  23,  2022.  Also,  on  February  23,  2022,  we  entered  into  a  sales  agreement  for  “at  the  market
offerings” with Cowen, acting as our agent (the "2022 Sales Agreement"), which allows us to issue and sell shares of common stock pursuant to the 2021
Form S-3 for total gross sales proceeds of up to $100.0 million from time to time through Cowen.

As of the date hereof, we have not sold any shares of common stock or other securities under the 2022 Sales Agreement.

Equity Offering

On  November  17,  2022,  we  entered  into  an  underwriting  agreement  related  to  a  public  offering  of  7,700,000  shares  of  our  common  stock  at  a  public
offering price of $6.50 per share less the underwriting discounts and commissions, pursuant to the shelf registration statement on Form S-3. We received
approximately $50.1 million in gross proceeds from this offering, before deducting underwriting discounts and commissions and offering expenses. The
offering  closed  on  November  22,  2022.  In  addition,  873,353  shares  of  common  stock  were  issued  upon  exercise  by  the  underwriters  at  their  option  to
purchase  additional  shares  at  the  same  offering  price,  which  closed  on  December  20,  2022.  The  gross  proceeds  from  the  offering  of  the  aggregate  of
8,573,353 shares of our common stock were $55.7 million and net proceeds of $52.0 million, after deducting underwriting discounts and commissions and
other offering expenses payable by us.

Loan and Security Agreement

On  May  29,  2020,  we  entered  into  a  loan  and  security  agreement  with  Hercules  under  which  they  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.

On March 31, 2021, we entered into a First Amendment to Loan and Security Agreement (the “First Amendment”) with Hercules whereby we drew the
remaining $10.0 million of the first tranche and the interest rate and financial covenants were amended. Unless loan advances exceeded $40.0 million, no
financial covenants were required.

On November 1, 2021, we entered into a Second Amendment to the Loan and Security Agreement (the "Second Amendment") with Hercules under which
Hercules has agreed to lend us up to $150.0 million, to be made available in a series of tranches, subject to certain terms and conditions. The first tranche
was increased to $100.0 million. At close of the Second Amendment, we borrowed an additional $45.0 million from the first tranche. We had the right to
request that Hercules make the remaining $25.0 million term loan advances under the first tranche to us by September 15, 2022, which we did not exercise.
No principal payments are due during an interest-only period, commencing on the close of the Second Amendment and continuing through December 1,
2024. The interest only period may be extended through December 1, 2025, in quarterly increments, subject to compliance with covenants of the Second
Amendment. Following the interest only period, we will repay the principal balance and interest of the advances in equal monthly installments through the
maturity date of November 1, 2026.

99

On June 24, 2022, we entered into a Third Amendment to Loan and Security Agreement (the “Third Amendment”) with Hercules which extended the time
for drawing the remainder of the first tranche advance of up to $25.0 million from September 15, 2022 to December 31, 2022. The Third Amendment also
added  a  minimum  cash  covenant  whereby  we  must  maintain  unrestricted  cash  equal  to  at  least  50%  of  the  outstanding  debt,  and  such  percentage  shall
decrease upon us achieving specified net product revenue of COSELA. It further provides for a minimum revenue covenant that, beginning August 15,
2022, with the reporting of the financial results for the second fiscal quarter ended June 30, 2022, and tested monthly, we must have achieved net product
revenue of COSELA of at least 80% of the amounts projected in our forecast. Testing of the minimum revenue covenant shall be waived at any time in
which either (a) our market capitalization exceeds $750.0 million and we maintain unrestricted cash equal to at least 50% of the total amounts funded, or
(b) we maintain unrestricted cash equal to at least 100% of the total amounts funded.

On  November  1,  2022,  we  entered  into  a  Fourth  Amendment  to  Loan  and  Security  Agreement  (the  “Fourth  Amendment”)  with  Hercules.  The  Fourth
Amendment  extended  the  time  for  drawing  the  Tranche  1D  Advance  (as  defined  in  the  Loan  and  Security  Agreement)  of  up  to  $25.0  million  from
December  31,  2022  to  June  30,  2023.  The  Fourth  Amendment  continues  to  provide  for  a  minimum  revenue  covenant,  tested  monthly,  where  we  must
achieve net product revenue of COSELA of at least 80% of the amounts projected in our forecast. The Fourth Amendment also amended the minimum cash
covenant such that if the outstanding debt is less than or equal to $75.0 million, we must maintain unrestricted cash equal to at least 65% of the outstanding
debt in addition to meeting the required revenue covenant. In addition, if the outstanding debt is greater than $75.0 million, we must maintain unrestricted
cash  equal  to  at  least  70%  of  the  outstanding  debt  while  meeting  the  revenue  covenant.  If  we  achieve  specified  net  revenue  of  COSELA,  the  cash
percentage decreases to 45% of the outstanding debt. Testing of the minimum revenue covenant shall be waived at any time in which either (a) our market
capitalization exceeds $750.0 million and we maintain unrestricted cash equal to at least 50% of the total amounts funded, or (b) we maintain unrestricted
cash equal to at least 100% of the total amounts funded. The Fourth Amendment also re-set the prepayment premiums associated with any prepayment of
the loans under the Loan and Security Agreement.

Hercules also has the ability to call debt based on a material adverse change clause, which is subjectively defined. If we are not in compliance with the
monthly net revenue covenants, minimum cash covenant or the subjective acceleration clauses are triggered under the agreement, then Hercules may call
the debt resulting in us immediately needing additional funds. We have determined that subjective acceleration under the material adverse events clause
included in the Loan Agreement is not probable and, therefore, have classified the outstanding principal amount in long-term liabilities based on the timing
of scheduled principal payments. As of December 31, 2022 and as of the date of the issuance of these financial statements, we were in compliance with all
covenants and have not been notified of an event of default by the lender under the Loan Agreement.

Genor License Agreement

On  June  15,  2020,  we  entered  into  an  exclusive  license  agreement  with  Genor  for  the  development  and  commercialization  of  lerociclib  in  the  Genor
Territory. Under the license agreement, we 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 us 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  us  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, we
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.  We  did  not  recognize  any
revenue related to development milestones during the year ended December 31, 2022.

EQRx License Agreement

On  July  22,  2020,  we  entered  into  an  exclusive  license  agreement  with  EQRx  for  the  development  and  commercialization  of  lerociclib  in  the  EQRx
Territory. Under the license agreement, we 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.

100

Under  the  license  agreement,  EQRx  agreed  to  pay  us  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  us  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,  we  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. We will continue until completion, as
the clinical trial sponsor, its two primary clinical trials at EQRx’s sole cost and expense. EQRx agreed to reimburse us for all of its out-of-pocket costs
incurred after the effective date of the license agreement in connection with these clinical trials. We will invoice EQRx within 30 days following the end of
each  quarter,  and  EQRx  will  pay  within  30  days  after  its  receipt  of  such  invoice.  We  did  not  recognize  any  revenue  related  to  development  milestones
during the year ended December 31, 2022.

Simcere License Agreement

On August 3, 2020, we entered into an exclusive license agreement with Simcere for the development and commercialization of trilaciclib in all indications
in the Simcere Territory. Under the license agreement, we 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 us 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 us tiered low double-digit royalties on annual
net sales of trilaciclib in the Simcere Territory. The upfront payment of $14.0 million (less applicable withholding taxes of $1.4 million) was received in
September 2020. In return, we furnished 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.

On July 13, 2022, the NMPA conditionally approved COSELA (trilaciclib hydrochloride for injection) for marketing in China. As a result of receiving
approval in China, Simcere paid us a $13.0 million milestone payment (less applicable withholding taxes of $1.3 million) in the third quarter of 2022. For
the completion of manufacturing technology transfer in the third quarter of 2022, Simcere paid us a $1.0 million (less applicable withholding taxes of $0.1
million)  milestone  payment  in  October  2022.  We  recognized  $14.0  million  of  revenue  related  to  development  milestones  during  the  year  ended
December 31, 2022.

Cash flows

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

2022

Year Ended December 31,

2021

(in thousands)

2020

$

$

(128,620) $
(50,529)
52,495 

(126,654) $

(132,108) $

— 
145,863 

13,755  $

(83,742)
152 
21,688 

(61,902)

During  the  year  ended  December  31,  2022,  net  cash  used  in  operating  activities  was  $128.6  million,  which  consisted  of  a  net  loss  of  $147.6  million,
accretion of discount on available for sale securities of $0.4 million, and a decrease in net operating assets and liabilities of $5.3 million, partially offset by
an increase in non-cash equity interest of $0.5 million, non-cash stock compensation expense of $20.6 million, $0.5 million of depreciation expense, $2.2
million in amortization of debt issuance costs, and $0.9 million of non-cash interest expense.

101

During the year ended December 31, 2021, net cash used in operating activities was $132.1 million, which consisted of a net loss of $148.4 million and a
decrease in net operating assets and liabilities of $8.8 million, partially offset by an increase in non-cash equity interest of $0.4 million, non-cash stock
compensation expense of $22.3 million, $0.5 million of depreciation expense, $1.1 million in amortization of debt issuance costs, $0.6 million of non-cash
interest expense, and $0.2 million from loss on extinguishment of debt.

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.

Net cash used in investing activities

During  the  year  ended  December  31,  2022,  net  cash  used  in  investing  activities  was  $50.5  million,  due  to  the  purchase  of  $65.0  million  in  marketable
securities and $0.5 million of manufacturing equipment placed in service during the year, offset by maturities of $15.0 million in marketable securities.

For the year ended December 31, 2021, there was no cash provided or used in investing activities.

Net cash used in 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 provided by financing activities

During the year ended December 31, 2022, net cash provided by financing activities was $52.5 million, which consisted of $52.3 million in net proceeds
from our public offering after deducting cash paid during the year for underwriting discounts and commissions and other expenses, and $0.2 million in net
proceeds from the exercise of stock options.

During the year ended December 31, 2021, net cash provided by financing activities was $145.9 million, which consisted of $86.4 million in net proceeds
from  our  ATM  offering  after  deducting  cash  paid  during  the  year  for  underwriting  discounts  and  commissions  and  other  expenses,  $55.0  million  in
proceeds  from  our  loan  agreement  with  Hercules,  partially  offset  by  $1.4  million  in  payments  related  to  debt  issuances  costs,  and  $5.9  million  in  net
proceeds from the exercise of stock options.

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.

Operating capital requirements and plan of operations

To date, we have generated limited revenue from product sales. We expect our expenses to increase as we continue the development of and seek additional
regulatory approvals for trilaciclib, and continue 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 have concluded that substantial doubt exists about the Company's ability to continue as a going concern for a period of at least 12 months following the
filing of this Annual Report.

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;

102

•

•

•

•

•

•

•

•

•

•

•

•

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 agreements 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 and the terms of such in-licenses;

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

the  potential  benefit  of  the  NMPA’s  conditional  approval  for  our  products  and  product  candidates  and  our  ability  to  provide
comprehensive clinical data from post-approval clinical research;

revenue received from commercial sales of our product candidates;

our ability to meet the required financial covenants under our loan agreement;

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

global economic uncertainty, rising inflation, rising interest rates, market disruptions and volatility in commodity prices.

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.
Other than amounts included under the terms of our licensing arrangements and the loan agreement with Hercules, which are subject to certain conditions,
we do not have any committed external source of funds. We may be bound by ongoing compliance with financial covenants under 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.

103

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, 2022:

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, 4, 5)

$

$

8,168  $

1,634  $

3,404  $

3,130  $

112,774 

10,175 

58,002 

44,597 

120,942  $

11,809  $

61,406  $

47,727  $

— 

— 

— 

(1)

(2)

(3)

(4)

(5)

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 five years. The lease for our former headquarters expired 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  Fourth  Amendment  to  the  Loan  and  Security  Agreement  with  Hercules  with  outstanding
borrowings of $75.0 million as of December 31, 2022. The amounts in the table above reflect interest-only payments through December 1, 2024
with payments on principal beginning thereafter. For purposes of the table above, interest payments were calculated using an annual interest rate
of 13.4%, which was the interest rate in effect as of December 31, 2022. Additionally, the table above includes end of term charges of $2.1
million  due  on  June  1,  2025  and  $5.1  million  due  upon  maturity  on  November  1,  2026.  See  Note  8  of  the  financial  statements  for  further
discussion of the Hercules loan agreement.

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 cancellable at any time by us, generally upon 30-60 days
prior  written  notice.  As  of  December  31,  2022,  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.

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.

We 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. In December 2021, G1 and BI announced that the parties mutually agreed to end the co-promotion agreement for COSELA,
effective March 2022. At that time, we announced that we would hire and deploy our own oncology sales team to accelerate sales activities and
help maximize the adoption of COSELA. For two years following the termination, sales payments to BI will be decreased to mid-single digit
percentages  of  net  sales.  The  sales  payments  will  vary  based  on  the  level  of  net  sales  in  an  applicable  year  following  the  termination.  Our
obligations to make sales payments under the co-promotion agreement will terminate in March 2024.

104

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.

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,  which  are  affected  by
changes  in  the  general  level  of  U.S.  interest  rates.  We  had  cash  and  cash  equivalents  of  $94.6  million  and  marketable  securities  of  $50.5  million  as  of
December  31,  2022.  Cash  and  cash  equivalents  consist  of  deposits  in  banks,  including  checking  accounts,  money  market  accounts  and  certificates  of
deposit.  Marketable  securities  consist  of  U.S.  Treasury  bills.  Such  interest-earning  instruments  carry  a  degree  of  interest  rate  risk;  however,  historical
fluctuations in interest income have not been significant. Due to the short-term nature of our cash equivalents, a sudden change in interest rates would not
be expected to have a material effect on our business, financial condition or results of operations.

We also have exposure to market risk on our loan agreement with Hercules. Our loan agreement (as such is amended from time to time) 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) 5.90%, and
(ii) 9.15%. As of December 31, 2022, $75.0 million of principal 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, 2022.

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.

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,  2022,  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, 2022, our
disclosure controls and procedures were effective at the reasonable assurance level.

105

Changes in Internal Controls Over Financial Reporting

There were no changes in our internal control over financial reporting that occurred during 2022 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, 2022.

Item 9B. Other Information.

CFO Transition

On March 1, 2023, the Company announced that John W. Umstead V, will be appointed as the Company’s Chief Financial Officer, effective March 15,
2023,  as  Jennifer  K.  Moses  decided  to  step  down  from  the  position  of  Chief  Financial  Officer,  effective  March  15,  2023,  and  as  an  employee  of  the
Company as of March 31, 2023. Mr. Umstead has served as the Company’s Controller since January 2021 and, prior to that, led the Company’s financial
reporting  since  joining  the  Company  in  October  2018.  From  September  2013  to  October  2018,  Mr.  Umstead  worked  for  PricewaterhouseCoopers  LLP
serving clients in various industries ranging from small private companies to large publicly traded corporations. During his time at PricewaterhouseCoopers
LLP, he started in the audit and assurance practice on engagements for publicly traded companies, and later moved into the Capital Markets Accounting
and Advisory Services group within the U.S. Deals Practice where he advised public and private companies in complex accounting and financial reporting
matters related to business combinations, debt and equity financings, divestitures, IPO readiness, and other areas involving technical accounting. Prior to
joining PricewaterhouseCoopers LLP, Mr. Umstead spent five years in commercial banking. Mr. Umstead earned a Master of Accounting from the Kenan-
Flagler Business School at the University of North Carolina at Chapel Hill and a B.A. in Political Science from the University of North Carolina at Chapel
Hill. Mr. Umstead is a certified public accountant in the State of North Carolina.

The Company and Mr. Umstead have entered into an employment agreement, effective March 15, 2023 (the “Employment Agreement”). Pursuant to the
Employment  Agreement,  Mr.  Umstead  will  receive  an  initial  annual  base  salary  of  $405,000.  Mr.  Umstead  is  also  eligible  to  receive  an  annual
discretionary bonus award of up to 40% of his then-current base salary (“Discretionary Bonus”). The Discretionary Bonus award, if any, will be determined
by the Board of Directors or a committee thereof.

In  connection  with  his  appointment,  Mr.  Umstead  will  receive  stock  options  to  purchase  100,000  shares  of  the  Company’s  common  stock  (the  “Stock
Options”), par value $0.0001 per share (“Common Stock”), at an exercise price equal to the closing price of the Common Stock on the Nasdaq Global
Select Market on March 15, 2023, and 50,000 restricted stock units (“RSUs”) with respect to shares of Common Stock. Both the Stock Options and the
RSUs will be granted pursuant to and subject to the terms and conditions of the Company’s 2017 Employee, Director and Consultant Equity Incentive Plan.
The Stock Options will have a ten-year term and will vest as to 25% of the shares on the first anniversary of the grant date and as to an additional 1/48th of
the shares monthly thereafter and the RSUs will vest as to one-fourth (1/4th) of the total number of such RSUs on each of the first, second, third, and fourth
anniversaries of the grant date, subject to Mr. Umstead’s continued service with the Company through the applicable vesting dates.

In the event of a change of control of the Company in which Mr. Umstead’s employment is terminated by the Company without cause (as defined in the
Employment Agreement) or Mr. Umstead resigns for good reason (as defined in the Employment Agreement) within ninety (90) days of the change of
control, 100% of any unvested portion of the Stock Options and RSUs will vest. Mr. Umstead had previously entered into a Non-Competition and Non-
Solicitation Agreement and a Confidentiality and Inventions Agreement with the Company. Mr. Umstead will also enter into an Indemnification Agreement
with the Company relating to his position as Chief Financial Officer.

Under the terms of the Employment Agreement, Mr. Umstead’s employment with the Company may be terminated at any time, with or without cause and
without any prior notice, by either Mr. Umstead or the Company. If the Company terminates Mr. Umstead’s employment without cause or Mr. Umstead
terminates his employment for good reason, he will be entitled to receive continuation of his then-current base salary for a period of twelve months, which
will be payable in periodic installments in accordance with the Company’s payroll practices and procedures beginning on the sixtieth (60th) day following
Mr. Umstead’s termination.

106

There are no transactions to which the Company is a party and in which Mr. Umstead has a material interest that are required to be disclosed under Item
404(a) of Regulation S-K. Mr. Umstead has no family relationship with any directors or executive officers of the Company.

Ms. Moses will continue to be Chief Financial Officer of the Company through March 15, 2023, and as an employee through March 31, 2023, pursuant to
the terms of her current employment agreement with the Company dated May 8, 2019 (the “Moses Employment Agreement”). The Moses Employment
Agreement will automatically terminate on March 31, 2023 and Ms. Moses will begin her service as a senior advisor to the Company pursuant to the terms
of a senior advisor agreement dated March 1, 2023 (the “Moses Senior Advisor Agreement”), which will take effect simultaneously with the termination of
the Moses Employment Agreement. The Moses Senior Advisor Agreement will have a term that expires on March 31, 2024. Pursuant to the terms of the
Moses Senior Advisor Agreement, Ms. Moses will receive $25,000 annually for her services paid in equal monthly installments. In addition, Ms. Moses’
currently outstanding equity, including stock options, RSUs, and Performance Stock Units (“PSUs”) will continue to vest pursuant to their current vesting
schedules while Ms. Moses serves as a senior advisor. Further, upon a change in control of the Company, all of Ms. Moses’ unvested equity, including
stock options, RSUs, and PSUs will vest and become immediately exercisable.

A copy of Mr. Umstead’s Employment Agreement and a copy of the Moses Senior Advisor Agreement are attached hereto as exhibits 10.25 and 10.22,
respectively.

Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

Not applicable.

107

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  2023  Annual  Meeting  of
Stockholders,  which  will  be  filed  with  the  SEC  within  120  days  after  the  end  of  our  2022  fiscal  year  pursuant  to  Regulation  14A  for  our  2023  Annual
Meeting  of  Stockholders  (the  “Proxy  Statement”),  except  for  the  information  provided  under  the  caption  "Pay  Versus  Performance."  The  additional
information required by this Item is included under the captions “Management and Corporate Governance,” "Election of Directors," "Certain Relationships
and Related Party Transactions," "Delinquent Section 16(a) Reports" and other information included in the Proxy Statement and is incorporated herein by
reference.

Item 11. Executive Compensation.

The information required by this item is incorporated herein by reference from the Proxy Statement under the captions “Compensation of Named Executive
Officers  and  Director,”  “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.”

108

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, 2022 and 2021

Statements of Operations for the Years ended December 31, 2022, 2021 and 2020

Statements of Stockholders’ Equity for the Years ended December 31, 2022, 2021 and 2020

Statements of Cash Flows for the Years ended December 31, 2022, 2021 and 2020

Notes to the Financial Statements

(b)

Financial Statement Schedules.

1

3

4

5

6

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

3.3

4.1

4.2

4.3

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.

Certificate  of  Correction  to  G1  Therapeutics,  Inc.’s  Amended  and  Restated  Certificate  of  Incorporation  filed  on  May  22,  2017,
dated June 30, 2021, filed as Exhibit 3.1 to the Registrant’s Current Report on Form 8-K filed on July 2, 2021 (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.

109

 
10.1**

10.2**

10.3**

10.4

10.5**

10.6**

10.7**

10.8**

10.9**

10.10*

10.11*

10.12*

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.

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.

First  Amendment  to  Loan  and  Security  Agreement,  by  and  between  the  Registrant  and  Hercules  Capital,  Inc.,  dated  March  31,
2021, filed as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2021 filed on May 5,
2021 (File No. 001-38096), and incorporated herein by reference.

Second Amendment to Loan and Security Agreement, by and between the Registrant and Hercules Capital, Inc., dated November 1,
2021, filed as Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2021 filed on
November 3, 2021 (File No. 001-38096), and incorporated herein by reference.

Third Amendment to Loan and Security Agreement, by and between the Registrant and Hercules Capital, Inc., dated June 24, 2022,
filed as Exhibit 10.1 to the Registrant's Quarterly Report on Form 10-Q for the quarter ended June 30, 2022 filed on August 3, 2022
(File No. 001-38096), and incorporated herein by reference.

Fourth  Amendment  to  Loan  and  Security  Agreement  by  and  between  Registrant  and  Hercules  Capital,  Inc.,  dated  November  1,
2022, filed as Exhibit 10.1 to the Registrant's Quarterly Report on Form 10-Q for the quarter ended September 30, 2022 filed on
November 2, 2022 (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.

Mutual  Termination,  Release,  and  Settlement  Agreement  by  and  between  the  Registrant  and  Boehringer  Ingelheim
Pharmaceuticals, Inc., dated as of December 15, 2021, filed as Exhibit 10.7 to the Registrant's Annual Report on Form 10-K for the
year ended December 31, 2021 filed on February 23, 2022 (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.

Amended and Restated 2021 Inducement Equity Incentive Plan, filed as Exhibit 10.1 to the Registrant’s Quarterly Report on Form
10-Q for the quarter ended March 31, 2022 filed on May 4, 2022 (File No. 001-38096), and incorporated herein by reference.

110

10.13*

10.14*

10.15*

10.16*

10.17*

10.18*

10.19*

10.20*

10.21*

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, Amended and Restated
Non-Employee Director Compensation Policy effective as of June 12, 2019, filed as Exhibit 10.1 to the Registrant’s Form 8-K filed
on June 13, 2019 (File No. 001-38096), and incorporated herein by reference.

Second  Amended  and  Restated  Non-Employee  Director  Compensation  Policy,  filed  as  Exhibit  10.1  to  the  Registrant’s  Current
Report on Form 8-K filed on June 21, 2021 (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 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.

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.

10.22*†

Senior Advisor Agreement between Registrant and Jennifer K. Moses dated February 28, 2023.

10.23*

10.24*

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.

Employment Agreement by and between Registrant and Andrew Perry dated July 28, 2021, filed as Exhibit 10.2 to the Registrant’s
Quarterly Report on Form 10-Q for the quarter ended June 30, 2021 filed on August 4, 2021 (File No. 001-38096) incorporated
herein by reference.

111

10.25*†

Employment Agreement by and between the Registrant and John W. Umstead V, dated as of February 28, 2023.

10.26*

10.27

10.28

10.29

21.1

23.1

31.1

31.2

32.1

32.2

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.

Sales Agreement by and between the Registrant and Cowen and Company, LLC, dated as of July 2, 2021, filed as Exhibit 1.2 to the
Registrant’s  Registration  Statement  on  Form  S-3ASR  filed  on  July  2,  2021  (File  No.  333-257640),  and  incorporated  herein  by
reference.

Sales Agreement by and between the Registrant and Cowen and Company, LLC, dated as of February 23, 2022, filed as Exhibit
10.29 to the Registrant's Annual Report on Form 10-K for the year ended December 31, 2021 filed on February 23, 2022 (File No.
001-38096), and incorporated herein by reference.

Underwriting Agreement dated November 17, 2022 by and among the Registrant and Cowen and Company, LLC and Raymond
James & Associates, Inc., as representatives of the several underwriters named in Schedule A thereto, filed as Exhibit 1.1 to the
Registrant’s Current Report on Form 8-K filed on November 21, 2022 (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.

101.INS

Inline XBRL Instance Document

101.SCH

Inline XBRL Taxonomy Extension Schema Document

101.CAL

Inline XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF

Inline XBRL Taxonomy Extension Definition Linkbase Document

101.LAB

Inline XBRL Taxonomy Extension Label Linkbase Document

101.PRE

Inline XBRL Taxonomy Extension Presentation Linkbase Document

112

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.

†

Filed herewith.

Item 16. Form 10-K Summary.

None.

113

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: March 1, 2023

By:

/s/ John E. Bailey, Jr.
John E. Bailey, Jr.
President and Chief Executive Officer

G1 THERAPEUTICS, INC.

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

/s/ Garry A. Nicholson
Garry A. Nicholson

/s/ Cynthia L. Flowers
Cynthia L. Flowers

/s/ Jacks Lee
Jacks Lee

/s/ Glenn P. Muir
Glenn P. Muir

/s/ Alicia Secor
Alicia Secor

/s/ Norman E. Sharpless, M.D.
Norman E. Sharpless, M.D.

/s/ Mark A. Velleca
Mark A. Velleca, M.D., Ph.D.

Title

President, Chief Executive Officer and Director
(Principal Executive Officer)

Chief Financial Officer
(Principal Financial and Accounting Officer)

Director

Director

Director

Director

Director

Director

Director

114

Date

March 1, 2023

March 1, 2023

March 1, 2023

March 1, 2023

March 1, 2023

March 1, 2023

March 1, 2023

March 1, 2023

March 1, 2023

Report of Independent Registered Public Accounting Firm

To the Board of Directors and Stockholders of G1 Therapeutics, Inc.

Opinion on the Financial Statements

We have audited the accompanying balance sheets of G1 Therapeutics, Inc. (the “Company”) as of December 31, 2022 and 2021, and the related
statements of operations, of redeemable convertible preferred stock and stockholders’ equity (deficit) and of cash flows for each of the for each of the three
years in the period ended December 31, 2022, including the related notes (collectively referred to as the “financial statements”). In our opinion, the
financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022 and 2021, and the results of its
operations and its cash flows for each of the three years in the period ended December 31, 2022 in conformity with accounting principles generally
accepted in the United States of America.

Substantial Doubt about the Company’s Ability to Continue as a Going Concern

The accompanying financial statements have been prepared assuming that the Company will continue as a going concern. As discussed in Note 2 to the
financial statements, the Company has experienced net losses since its inception and expects that cash and cash equivalents and marketable securities as of
December 31, 2022 will not be sufficient to fund the Company’s planned operations and remain in compliance with its financial covenants for the next 12
months from the date of issuance of the financial statements, which raise substantial doubt about its ability to continue as a going concern. Management's
plans in regard to these matters are also described in Note 2. The financial statements do not include any adjustments that might result from the outcome of
this uncertainty.

Basis for Opinion

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

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

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

Critical Audit Matters

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.

F-1

Accrued External Clinical Study Costs

As described in Notes 2 and 6 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 $15.6 million as of December 31,
2022. 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, NC
March 1, 2023

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)

Assets
Current assets

Cash and cash equivalents
Restricted cash
Marketable securities
Accounts receivable and unbilled receivables, net
Inventories
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
Deferred revenue
Operating lease liabilities
Total liabilities
Stockholders’ equity

Common stock, $0.0001 par value, 120,000,000 shares authorized as of December 31, 2022, and December 31, 2021;

51,526,100 and 42,588,814 shares issued as of December 31, 2022, and December 31, 2021, respectively; 51,499,434
and 42,562,148 shares outstanding as of December 31, 2022, and December 31, 2021, respectively

Treasury stock, 26,666 shares as of December 31, 2022, and December 31, 2021
Additional paid-in capital
Accumulated deficit

Total stockholders’ equity

Total liabilities and stockholders' equity

December 31, 2022

December 31, 2021

$

$

$

$

$

94,594  $
63 
50,476 
11,094 
16,179 
7,094 
179,500  $
1,989 
250 
5,962 
264 
187,965  $

7,431  $
25,557 
7 
2,593 
35,588 
77,015 
1,000 
5,615 
119,218 

5 
(8)
800,768 
(732,018)

68,747 
187,965  $

221,186 
63 
— 
5,688 
3,471 
13,157 
243,565 
2,013 
312 
7,035 
1,169 
254,094 

2,897 
23,180 
31 
1,505 
27,613 
75,190 
1,000 
6,750 
110,553 

4 
(8)
728,004 
(584,459)

143,541 
254,094 

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)

Revenues

Product sales, net
License revenue

Total revenues
Operating expenses

Cost of goods sold
Research and development
Selling, 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

Year Ended December 31,

2022

2021

2020

31,337  $
19,964 
51,301 

11,120  $
20,356 
31,476 

3,748 
83,316 
100,415 
187,479 
(136,178)

748 
(10,432)
3 
(9,681)
(145,859) $

1,700 
(147,559) $

(3.38) $

2,016 
76,225 
95,692 
173,933 
(142,457)

43 
(4,667)
(346)
(4,970)
(147,427) $

925 
(148,352) $

(3.54) $

43,626,113 

41,943,417 

— 
45,285 
45,285 

— 
73,271 
68,490 
141,761 
(96,476)

952 
(1,778)
(542)
(1,368)
(97,844)

1,410 
(99,254)

(2.62)
37,878,026 

$

$

$

$

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

Treasury stock

Amount

Shares

Amount

Additional
paid-in
capital

Accumulated
deficit

Total stock-
holders'
equity

Balance at December 31, 2019

Exercise of common stock options
Stock-based compensation
Net loss during year

Shares
37,638,260  $

502,496 
— 
— 

Balance at December 31, 2020

38,140,756  $

Public offering (ATM)
Exercise of common stock options
Stock-based compensation
Net loss during year

3,513,027 
935,031 
— 
— 

Balance at December 31, 2021

42,588,814  $

Public offering
Exercise of common stock options
Restricted stock units vested
Stock-based compensation
Net loss during year

8,573,353 
206,608 
157,325 
— 
— 

Balance at December 31, 2022

51,526,100  $

4 

— 
— 
— 

4 

— 
— 
— 

4 

1
— 
— 
— 
— 

5 

(26,666) $

(8) $

592,384  $

(336,853) $

— 
— 
— 

— 
— 
— 

2,308 
18,770 
— 

— 
— 
(99,254)

(26,666) $

(8) $

613,462  $

(436,107) $

— 
— 
— 

— 
— 
— 

86,378 
5,845 
22,319 
— 

— 
— 
(148,352)

(26,666) $

(8) $

728,004  $

(584,459) $

— 
— 
— 
— 
— 

— 
— 
— 
— 
— 

52,020 
155 
— 
20,589 
— 

— 
— 
— 
— 
(147,559)

(26,666) $

(8) $

800,768  $

(732,018) $

255,527 

2,308 
18,770 
(99,254)

177,351 

86,378 
5,845 
22,319 
(148,352)

143,541 

52,021 
155 
— 
20,589 
(147,559)

68,747 

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

Stock-based compensation
Accretion of discount on available for sale securities
Depreciation and amortization
Loss on disposal of fixed assets
Amortization of debt issuance costs
Loss on extinguishment of debt
Non-cash interest expense
Non-cash equity interest, net
Change in operating assets and liabilities

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

Net cash used in operating activities

Cash flows from investing activities
Purchases of marketable securities
Maturities of marketable securities
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 operating, investing and financing activities
Upfront project costs and other current assets in accounts payable and accrued expenses
Public offering costs in accounts payable and accrued expenses

Year Ended December 31,

2022

2021

2020

$

(147,559) $

(148,352) $

(99,254)

20,589 
(453)
530 
— 
2,233 
— 
850 
497 

(5,406)
(12,708)
7,184 
4,421 
1,226 
(24)
(128,620)

(65,023)
15,000 
— 
(506)
(50,529)

155 
— 
— 
52,383 
(43)
52,495 
(126,654)

22,319 
— 
469 
— 
1,113 
220 
591 
370 

(5,451)
(3,471)
(3,380)
(675)
3,345 
794 
(132,108)

— 
— 
— 
— 
— 

5,845 
55,000 
(1,360)
86,429 
(51)
145,863 
13,755 

$

221,561 
94,907  $

207,806 
221,561  $

7,924 

47 
320 

2,908 

— 
— 

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)

269,708 
207,806 

997 

132 
— 

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 focused on the development and commercialization of novel
small molecule therapeutics for the treatment of patients with cancer. The Company's first product approved 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
(myeloprotection) and is the first innovation in managing myeloprotection in decades. In July 2022, COSELA (trilaciclib hydrochloride for injection) was
conditionally approved by the China National Medical Products Administration (NMPA) for marketing in China.

Trilaciclib was 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. Controlled administration and clean G1 arrest from transient CDK4/6 inhibition can protect bone marrow and reduce
hematologic  adverse  events  (“AEs”)  caused  by  cytotoxic  therapy  and  may  increase  the  ability  to  receive  longer  treatment  durations.  Transient  CDK4/6
inhibition also may improve survival in combination with leading and emerging treatments through myeloprotection, enabling increased cytotoxic exposure
while  protecting  the  immune  system,  and/or  through  immunomodulation,  which  may  improve  patients’  overall  anti-tumor  immune  responses.  The
Company is exploring the use of trilaciclib in a variety of trials across multiple tumor types and treatment combinations to optimize these potential benefits
of proactive multi-lineage myeloprotection and survival in combination with leading and emerging treatments for patients globally.

COSELA is a prescription medicine used to help reduce the occurrence of low blood cell counts caused by damage to bone marrow from chemotherapy.
COSELA is used to treat adults taking certain chemotherapies (platinum/etoposide or topotecan) for extensive-stage small cell lung cancer.

The Company’s clinical approach to designing its clinical program includes monitoring the evolution of future standards of care and develop trilaciclib with
these  in  mind,  allowing  it  to  conduct  or  support  trials  that  will  generate  important  data  to  maximize  future  usage  in  a  variety  of  future  settings.  The
Company’s robust clinical pipeline includes the following ongoing trials:

•
•

•

•

Phase 3 trial in 1L mTNBC (initial results including interim results for OS expected in 1H2024
Phase 2 trial in combination with the ADC Trodelvy (additional results including anti-tumor efficacy endpoints expected in
2Q2023)
Phase  2  trial  to  confirm  the  immune-based  mechanism  of  action  (MOA)  of  trilaciclib  in  early-stage  neoadjuvant  TNBC
(additional results including pCR and immune enhancements in tumor microenvironment expected in 2Q2023)
Phase  2  trial  in  bladder  cancer  (additional  results  including  the  primary  endpoint  of  the  anti-tumor  efficacy  of  trilaciclib
expected midyear 2023)

The Company is also conducting extensive preclinical development work to assess the synergistic potential of trilaciclib with a variety of new anti-cancer
mechanisms.

The  Company  also  has  an  Investigator  Initiated  Studies  (“ISS”)  program.  An  ISS  is  a  study  that  is  developed  and  conducted  by  a  qualified  physician
external to the Company who assumes full responsibility for the conduct of the study. The Company supports investigator sponsored studies that align with
its areas of scientific interest. In the fourth quarter of 2022, the Company announced that it was supporting a new Phase 2 investigator initiated study (ISS)
of  trilaciclib  and  lurbinectedin  in  patients  with  ES-SCLC.  This  is  a  prospective,  non-randomized,  single-arm  Phase  2  study,  to  evaluate  trilaciclib
administered  intravenously  prior  to  lurbinectedin  in  approximately  30  subjects  with  platinum  refractory  ES-SCLC.  The  primary  endpoint  is  the  rate  of
grade 4 neutropenia in any cycle. Secondary endpoints include mean duration (days) of grade 4 neutropenia in cycle 1, overall survival (OS), progression-
free survival (PFS), overall rate of response (ORR), quality of life assessments, and the use of secondary/reactive supportive measures including G-CSF
administration.

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.  In  addition,  the  company  out-licensed  global  rights  to  an  internally  discovered
CDK2 inhibitor for all human and veterinary uses. The Company also has intellectual property focused on cyclin-dependent kinase targets.

F-7

Trilaciclib

The  Company’s  lead  compound,  COSELA®  (trilaciclib),  is  a  first-in-class  therapy  approved  to  help  protect  hematopoietic  stem  and  progenitor  cells
(“HSPCs”) in bone marrow against chemotherapy-induced myelosuppression by transiently inhibiting CDK4/6 in patients with extensive-stage small cell
lunger cancer (“ES-SCLC”). This action leads to temporary arrest of susceptible host cells during chemotherapy. This reduces the duration and severity of
neutropenia and other myelosuppressive consequences of chemotherapy.

Trilaciclib was 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. Controlled administration and clean G1 arrest from transient CDK4/6 inhibition can protect bone marrow and reduce
hematologic  adverse  events  (“AEs”)  caused  by  cytotoxic  therapy  and  may  increase  the  ability  to  receive  longer  treatment  durations.  Transient  CDK4/6
inhibition also may improve survival in combination with leading and emerging treatments through myeloprotection, enabling increased cytotoxic exposure
while  protecting  the  immune  system,  and/or  through  immunomodulation,  which  may  improve  patients’  overall  anti-tumor  immune  responses.  The
Company is exploring the use of trilaciclib in a variety of trials across multiple tumor types and treatment combinations to optimize these potential benefits
of proactive multi-lineage myeloprotection and survival in combination with leading and emerging treatments for patients globally.

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 ES-SCLC. On March 2, 2021, COSELA became commercially available through the Company’s specialty distributor network. COSELA is
administered  intravenously  as  a  30-minute  infusion  completed  within  four  (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
(3)  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. The Company announced on March 25, 2021 that COSELA had been included
in  two  updated  National  Comprehensive  Cancer  Network®  (“NCCN”)  Clinical  Practice  Guidelines  in  Oncology  (NCCN  Guidelines®):  The  Treatment
Guidelines for Small Cell Lung Cancer and the Supportive Care Guidelines for Hematopoietic Growth Factors. These guidelines document evidence-based,
consensus-driven management to ensure that all patients receive preventive, diagnostic, treatment, and supportive services that are most likely to lead to
optimal outcomes. On October 1, 2021, the Company announced that the permanent J-code for COSELA that was issued in July 2021 by the Centers for
Medicare & Medicaid Services (CMS) is now effective for provider billing for all sites of care. All hospital outpatient departments, ambulatory surgery
centers and physician offices in the United States have one consistent Healthcare Common Procedure Coding System (HCPCS) code to standardize the
submission and payment of COSELA insurance claims across Medicare, Medicare Advantage, Medicaid and commercial plans. G1’s new technology add-
on payment (NTAP) for COSELA which provides additional payment to inpatient hospitals above the standard Medicare Severity Diagnosis-Related Group
(MS-DRG) payment amount also became effective for provider billing on October 1, 2021.

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  Pharmaceuticals,  Inc.  (“BI”).  In  December  2021,  the  Company  and  BI  mutually  agreed  to  end  the  co-promotion  agreement  for  COSELA,
effective March 2022. At that time, the Company announced that it would hire and deploy its own oncology sales team to allow the Company to target all
accounts to accelerate sales activities and help maximize the adoption of COSELA. As of February 21, 2022, all sales representatives have been hired,
trained and deployed.

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.  During  the  twelve  months  ended  December  31,  2022,  the  Company  received  two  development
milestone payments totaling $14.0 million. 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.  On  February  9,  2023,  Simcere  and  G1  announced  the  issuance  of  the  first  prescription  for
COSELA® (trilaciclib) in China.

F-8

The  Company  is  evaluating  the  potential  benefits  of  trilaciclib  to  patients  with  other  tumors  and  to  continuously  develop  new  data  with  trilaciclib  in  a
variety of chemotherapeutic settings and in combination with other agents to maximize the applicability of the drug to potential future treatment paradigms.

Development Pipeline

Trilaciclib is a first-in-class therapy designed to help protect against chemotherapy-induced myelosuppression. Trilaciclib, a novel transient IV CDK4/6
inhibitor  has  unique  attributes  including  rapid  onset  from  IV  administration,  potent  and  selective  CDK4  and  CDK6  inhibition  and  a  short  half-life.
Controlled administration and clean G1-phase arrest reduce hematologic adverse events caused by cytotoxic therapy and may increase patients’ abilities to
receive  longer  treatment  durations.  Transient  CDK4/6  inhibition  also  modulates  multiple  immune  functions  ("immunomodulation")  while  allowing
beneficial T cell proliferation which may improve patients’ anti-tumor immune responses.

Trilaciclib  transiently  blocks  progression  through  the  cell  cycle.  This  provides  benefits  which  manifest  depending  on  the  tumor  type  and  therapeutic
backbone, including: (1) proactive multi-lineage myeloprotection to protect the bone marrow from cytotoxic damage, and (2) potentially improved survival
in combination with leading and emerging treatments.

The Company is pursuing trilaciclib across key growth platforms. First, trilaciclib provides proactive multi-lineage myeloprotection by transiently arresting
hematopoietic  stem  and  progenitor  cells  (“HSPCs”),  helping  to  protect  them  from  damage  caused  by  cytotoxic  therapy  thereby  minimizing  cytopenias
across neutrophils, erythrocytes, and platelets. These proactive multi-lineage myeloprotection benefits were seen in the Company's three Phase 2 double-
blind, placebo-controlled clinical trials in ES-SCLC, where highly myelosuppressive chemotherapy regimens are administered multiple days in a row. This
myeloprotection benefit was initially explored in clinical trials in extensive stage small cell lung cancer, leading to the approval of trilaciclib in that tumor
type  when  administered  prior  to  platinum/etoposide-containing  or  topotecan-containing  chemotherapy  regimens.  In  addition,  these  multilineage
myeloprotection benefits were seen in the initial Phase 2 trial of trilaciclib in combination with the antibody-drug conjugate, sacituzumab govitecan-hziy in
patients  with  unresectable  locally  advanced  or  metastatic  triple-negative  breast  cancer  (TNBC).  Initial  data  on  the  first  18  patients  showed  a  clinically
meaningful  on-target  effect  of  trilaciclib  to  reduce  (>50%)  the  rates  of  multiple  adverse  events  compared  to  the  previously  published  sacituzumab
govitecan-hziy single agent safety profile from the ASCENT trial, including myelosuppression (neutropenia, anemia, thrombocytopenia).

Second,  trilaciclib  has  the  potential  to  improve  survival  in  combination  with  leading  and  emerging  treatments,  as  a  result  of  (1)  myeloprotection,  thus
enabling increased cytotoxic exposure while protecting the immune system, and/or (2) immunomodulation, thus improving overall immune response. Its
ability to enhance the cancer immune cycle occurs through multiple factors, including (1) enhancing T cell activation (via increased antigen presentation
and secretion of IL-2 and IFNγ), (2) favorably altering the tumor microenvironment (via increased chemokines responsible for trafficking T cells to tumors
and reducing the number and function of immunosuppressive cell populations), and (3) improving long-term immune surveillance (via increased generation
of  memory  CD8+  T  cells).  The  Company  is  exploring  this  potential  survival  benefit  in  a  variety  of  ongoing  Phase  2  and  Phase  3  clinical  trials.  A
meaningful  anti-tumor  efficacy  benefit  was  observed  in  the  Company's  Phase  2  mTNBC  study  in  which  trilaciclib  led  to  a  significant  improvement  in
overall  survival  (OS)  when  administered  in  combination  with  chemotherapy  (gemcitabine/carboplatin)  compared  to  chemotherapy  alone.  These  are  the
foundational data for the Company's ongoing PRESERVE 2 pivotal Phase 3 trial in 1L mTNBC.

The Company is executing on its strategy to evaluate the potential benefits of trilaciclib to patients with other tumors to continuously develop new data
with trilaciclib in a variety of chemotherapeutic settings and in combination with other agents to maximize the applicability of the drug to potential future
treatment paradigms. The Company currently has four ongoing clinical trials: a pivotal Phase 3 trial in 1L mTNBC, a Phase 2 trial in combination with an
antibody-drug conjugate (“ADC”) in 2L/3L mTNBC, a Phase 2 trial in neoadjuvant TNBC designed to validate trilaciclib’s immune-based mechanism of
action  (“MOA”),  and  a  Phase  2  trial  in  1L  bladder  cancer  with  chemotherapy  induction  and  a  checkpoint  inhibitor  maintenance.  These  studies  across
treatment settings and tumor types will evaluate trilaciclib’s benefits of proactive multi-lineage myeloprotection and survival in combination with leading
and emerging treatments via myeloprotection and/or immunomodulation. In addition, the MOA and ADC Phase 2 trials will inform the design of future
additional pivotal studies across multiple tumor types and treatment combinations. The Company is also conducting significant preclinical work to assess
the additive/synergistic potential of trilaciclib with a variety of novel and emerging therapeutic agents to identify synergies to evaluate in future clinical
trials. The Company's overall development approach includes monitoring and anticipating the evolving future standards of care across tumor types in order
to design or support studies that generate important data for trilaciclib across relevant future treatment settings and maximize future usage.

F-9

On February 13, 2023, the Company announced top line results from its pivotal Phase 3 PRESERVE 1 trial showing that the trial achieved its co-primary
endpoints  related  to  severe  neutropenia  with  statistical  significance,  including  clinically  meaningful  and  statistically  significant  reductions  in  both
occurrence of severe neutropenia during induction and mean duration of severe neutropenia in Cycles 1 through 4. However, despite the achievement of the
co-primary  endpoints  and  other  secondary  measures  of  myeloprotection  and  tolerability,  early  anti-tumor  efficacy  data,  including  overall  response  rate
(ORR),  favor  patients  receiving  placebo  compared  to  trilaciclib.  Given  the  differential  in  these  anti-tumor  efficacy  metrics  and  the  low  likelihood  of
achieving the progression-free survival (PFS) and overall survival (OS) endpoints, the Company has made the decision to discontinue PRESERVE 1.

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”).

The Company has experienced net losses since its inception and has an accumulated deficit of $732.0 million and $584.5 million as of December 31, 2022
and December 31, 2021, respectively. The Company expects to incur losses and have negative net cash flows from operating activities as it executes on its
strategy including engaging in further research and development activities, particularly conducting non-clinical studies and clinical trials. The success of
the Company depends on the ability to successfully commercialize its technologies to support its operations and strategic plan. As of the date of issuance of
these financial statements, the Company expects that its cash and cash equivalents and marketable securities as of December 31, 2022 will not be sufficient
to fund the Company’s planned operations and remain in compliance with its financial covenants for the next 12 months from the date of issuance of these
financial statements. Based on the foregoing, the Company has concluded that substantial doubt exists about the Company’s ability to continue as a going
concern for a period of at least 12 months from the date of issuance of these financial statements. Until such time, if ever, as the Company can generate
substantial revenues, the Company expects to finance its 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.  There  can  be  no  assurances  that  the
Company will be able to secure such additional financing if at all, or on terms that are satisfactory to the Company, and that it will be sufficient to meet its
needs. In the event the Company is not successful in obtaining sufficient funding, this could force it to delay, limit, or reduce its product development,
commercialization efforts or other operations, and could result in the default on the Company's loan payable. 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. The financial statements do not include any adjustments relating to the recoverability and classification
of recorded asset amounts or the amounts and classification of liabilities that might result from the outcome of the uncertainties described above.

In connection with the Loan Payable described in Note 8, the Company is required to remain in compliance with a minimum cash covenant and a minimum
monthly net product revenue covenant (determined in accordance with U.S. GAAP), measured on a trailing six-month basis. The lender also has the ability
to call debt based on a material adverse change clause, which is subjectively defined. If the Company is not in compliance with the monthly net revenue
covenants, the minimum cash covenant, or the subjective acceleration clauses are triggered under the agreement, then the lender may call the debt resulting
in the Company immediately needing additional funds. As of December 31, 2022, the Company was in compliance with all covenants.

As  described  in  Note  16,  on  February  22,  2023,  the  Company  approved  a  reduction  in  its  workforce  to  streamline  operations  and  reduce  operating
expenses. The Company estimates that it will recognize $1.4 million in severance and termination-related costs in the first quarter of 2023.

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. On an ongoing basis, the Company’s management evaluates its estimates which include,
but  are  not  limited  to,  estimates  related  to  accrued  expenses,  accrued  external  clinical  costs,  net  product  sales,  common  stock  valuation,  stock-based
compensation expense and deferred tax asset valuation allowance. Actual results could differ from those estimates.

F-10

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,  2022  and  2021  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 office space which
commenced on September 2, 2019, 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. As of December 31, 2022,
restricted cash totaled $0.3 million. See Note 7 for further discussion on this transaction.

Marketable Securities

The Company determines the appropriate classification of marketable securities at the time of purchase and reevaluates such designation at each balance
sheet date. The Company classified all of its marketable securities at December 31, 2022 as “available-for-sale” pursuant to ASC Topic 320, Investments –
Debt and Equity Securities. Investments not classified as cash equivalents are presented as either short-term or long-term investments based on both their
maturities as well as the time period the Company intends to hold such securities. Available-for-sale securities are maintained by an investment manager
and  primarily  consist  of  fixed  income  securities.  Available-for-sale  securities  are  carried  at  fair  value.  Any  premium  or  discount  arising  at  purchase  is
amortized or accreted to interest income over the life of the instrument. Realized gains and losses are determined using the specific identification method
and are included in other (income) expense, net. As of December 31, 2022 the unrealized gains and losses are not considered to be material.

Accounts Receivable

The  Company’s  accounts  receivable  consists  of  amounts  due  from  specialty  distributors  in  the  U.S.  (collectively,  its  “Customers”)  related  to  sales  of
COSELA  and  have  standard  payment  terms.  Trade  receivables  are  recorded  net  of  the  estimated  variable  consideration  for  chargebacks  based  on
contractual  terms  and  the  Company’s  expectation  regarding  the  utilization  and  earnings  of  the  chargebacks  and  discounts  as  well  as  the  net  amount
expected to be collected from the Company’s customers. Estimates of the Company’s credit losses are determined based on existing contractual payment
terms, individual customer circumstances, and any changes to the economic environment.

In addition, the Company’s accounts receivable consists of open invoices issued to its license partners for services rendered by the Company or receivables
with  its  license  partners  for  invoices  related  to  milestones  that  were  completed  and  recognized  as  revenue.  The  Company  also  has  unbilled  accounts
receivable related to clinical trial reimbursements where the Company has the right to invoice the license partner and accordingly has recognized revenue.
Invoicing  to  the  license  partner  will  occur  once  the  Company  has  been  invoiced  by  the  service  provider.  As  of  December  31,  2022,  unbilled  accounts
receivable totaled $2.3 million.

Inventories

Inventories are stated at the lower of cost or net realizable value and recognized on a weighted-average cost method. The Company uses actual cost to
determine the cost basis for inventory. Inventory is capitalized based on when future economic benefit is expected to be realized. Due to the nature of the
Company’s supply chain process, inventory that is owned by the Company, is physically stored at third-party warehouses, logistics providers, and contract
manufacturers. The Company began capitalizing inventory upon receiving FDA approval for COSELA on February 12, 2021. Prior to FDA approval of
COSELA, expenses associated with the manufacturing of the Company's products were recorded as research and development expense.

Inventory valuation is established based on a number of factors including, but not limited to, finished goods not meeting product specifications, product
excess and obsolescence, or application of the lower of cost or net realizable value concepts. The determination of events requiring the establishment of
inventory valuation, together with the calculation of the amount of such adjustments may require judgment. The Company analyzes its inventory levels on
a periodic basis to determine if any inventory is at risk for expiration prior to sale or has a cost basis that is greater than its estimated future net realizable
value.  Any  adjustments  are  recognized  through  cost  of  sales  in  the  period  in  which  they  are  incurred.  No  inventory  valuation  adjustments  have  been
recorded for any periods presented.

F-11

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
Manufacturing equipment
Furniture and fixtures
Leasehold improvements

5 years
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, 2022, 2021 and 2020, the Company’s management evaluated its long-lived
assets and determined no impairment charge was needed.

Debt

The  Company  classifies  its  loan  payable  in  current  or  long-term  liabilities  based  on  the  timing  of  scheduled  principal  payments.  The  loan  and  security
agreement (the "Loan Agreement") with Hercules Capital contains events of default, including a material adverse change, which is subjectively defined, in
the Company’s business, payment defaults, and breaches of covenants following any applicable cure period. In the event of default by the Company under
the Loan Agreement, the Company may be required to repay all amounts then outstanding under the Loan Agreement. The Company has determined that
subjective  acceleration  under  the  material  adverse  events  clause  included  in  the  Loan  Agreement  is  not  probable  and,  therefore,  has  classified  the
outstanding principal amount in long-term liabilities based on the timing of scheduled principal payments.

Revenue Recognition

For elements of those arrangements that the Company determines should be accounted for under ASC 606, Revenue from Contracts with Customers (“ASC
606”), the Company assesses which activities in its license or collaboration agreements are performance obligations that should be accounted for separately
and determines 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, the Company allocates the transaction price based on the relative standalone selling price and recognizes 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, the Company develops 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-12

License Revenue

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. For regulatory milestones, the Company recognizes revenue at a point in time upon
approval,  as  that  is  when  achievement  of  the  milestone  is  considered  probable.  The  Company  assesses  milestones  as  they  are  achieved  to  determine
whether they are tied to any other performance obligations in the respective license agreements.

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.

Product Sales, Net

The  Company  sells  COSELA  to  specialty  distributors  in  the  U.S.  and,  in  accordance  with  ASC  606,  recognizes  revenue  at  the  point  in  time  when  the
customer is deemed to have obtained control of the product. The customer is deemed to have obtained control of the product at the time of physical receipt
of the product at the customers’ distribution facilities, or Free on Board (“FOB”) destination, the terms of which are designated in the contract.

Product sales are recorded at the net selling price, which includes estimates of variable consideration for which reserves are established for (a) rebates and
chargebacks, (b) co-pay assistance programs, (c) distribution fees, (d) product returns, and (e) other discounts. Where appropriate, these estimates take into
consideration a range of possible outcomes which are probability-weighted for relevant factors such as current contractual and statutory requirements, and
forecasted customer buying and payment patterns. Overall, these reserves reflect the Company’s best estimates of the amount of consideration to which it is
entitled based on the terms of the applicable contract. The amount of variable consideration may be constrained and is included in the net sales price only to
the extent that it is probable that a significant reversal in the amount of the cumulative revenue recognized will not occur in a future period. Actual amounts
of consideration ultimately received may differ from the Company's estimates. If actual results in the future vary from estimates, the Company adjusts these
estimates, which would affect net product revenue and earnings in the period such variances become known.

Liabilities related to co-pay assistance, rebates, and GPO fees are classified as “Accrued Expenses” in the Balance Sheets. Discounts such as chargebacks,
returns, and specialty distributor fees are recorded as a reduction to trade accounts receivable, which is included in “Accounts Receivable” in the Balance
Sheets.

F-13

Forms of Variable Consideration

Rebates  and  Chargebacks:  The  Company  estimates  reductions  to  product  sales  for  Public  Health  Service  Institutions,  such  as  Medicaid,  Medicare  and
Veterans  Administration  (“VA”)  programs,  as  well  as  certain  other  qualifying  federal  and  state  government  programs,  and  other  group  purchasing
organizations. The Company estimates these reductions based upon the Company’s contracts with government agencies and other organizations, statutorily
defined discounts and estimated payor mix. These organizations purchase directly from the Company’s specialty distributors at a discount and the specialty
distributors charge the Company back the difference between the wholesaler price and the discounted price. The Company’s liability for Medicaid rebates
consists of estimates for claims that a state will make. The Company’s reserve for this discounted pricing is based on expected sales to qualified healthcare
providers and the chargebacks that customers have already claimed.

Co-pay assistance: Eligible patients who have commercial insurance may receive assistance from the Company to reduce the patient’s out of pocket costs.
Liabilities for co-pay assistance are calculated by actual program participation from third-party administrators.

Distribution Fees: The Company has written contracts with its customers that include terms for distribution fees and costs for inventory management. The
Company estimates and records distribution fees due to its customers based on gross sales.

Product Returns: The Company generally offers a right of return based on the product’s expiration date and certain spoilage and damaged instances. The
Company  estimates  the  amount  of  product  sales  that  may  be  returned  and  records  the  estimate  as  a  reduction  of  product  sales  in  the  period  the  related
product sales are recognized. The Company’s estimates for expected returns are based primarily on an ongoing analysis of sales information and visibility
into the inventory remaining in the distribution channel.

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.

Cost of Goods Sold

Cost of goods sold includes direct and indirect costs related to the manufacturing and distribution of COSELA, including third-party manufacturing costs,
packaging  services,  freight-in,  third-party  logistics  costs  associated  with  COSELA,  and  Company  personnel  costs.  Cost  of  goods  sold  may  also  include
period costs related to certain inventory manufacturing services and inventory adjustment charges. In connection with the FDA approval of COSELA on
February 12, 2021, the Company subsequently began capitalizing inventory manufactured or purchased after this date. As a result, certain manufacturing
costs associated with product shipments of COSELA were expensed prior to FDA approval and, therefore, are not included in cost of goods sold during the
current period.

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.

F-14

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

Level 3

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.

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.

At December 31, 2022 and 2021 these financial instruments and respective fair values have been classified as follows (in thousands):

Assets:

Money market funds
Marketable securities:
U.S. Treasury Bills

Total assets at fair value

Assets

Money market funds
Marketable securities:
U.S. Treasury Bills

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,
2022

84,167  $

50,476  $
134,643  $

—  $

—  $
—  $

—  $

—  $
—  $

84,167 

50,476 
134,643 

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,
2021

110,443  $

—  $
110,443  $

—  $

—  $
—  $

—  $

—  $
—  $

110,443 

— 
110,443 

$

$
$

$

$
$

F-15

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
During the twelve months ended December 31, 2022 and December 31, 2021, there were no changes in valuation methodology.

The Loan Payable (discussed in Note 8), 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, 2022, the carrying value was $77.0 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 selling, general and administrative costs were approximately $1.8 million, $1.9 million, and $2.8 million for the
years ended December 31, 2022, 2021 and 2020, 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,  2022  and  2021,  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, 2022 and 2021, 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-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 also incurs stock-based compensation expense related to restricted stock units (“RSUs”) granted to employees. The fair value of RSUs is
determined by the closing market price of the Company’s common stock on the date of grant and then recognized over the requisite service period of the
award.

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.

F-16

Leases

The Company determines if an arrangement is a lease at inception. Operating lease assets represent the Company's right to use an underlying asset for the
lease term and lease liabilities represent the Company's 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  the  Company's  balance  sheet  at  December  31,  2022.  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  the  Company's  leases  do  not  provide  an  implicit  rate,  the  Company  uses  its  incremental  borrowing  rate  based  on  the  information  available  at
commencement date to determine the present value of future payments. The Company's lease terms may include options to extend or terminate the lease
when it is reasonably certain that it 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, the Company presents debt issuance costs on the balance sheet as a direct deduction from the associated debt.

3. Inventories

Inventories consists of the following (in thousands):

Raw materials

Work in process
Finished goods
Inventories

December 31, 2022

December 31, 2021

$

$

2,790  $

10,153 
3,236 

16,179  $

2,105 
1,342 
24 

3,471 

The Company uses third party contract manufacturing organizations for the production of its raw materials, active pharmaceutical ingredients, and finished
drug product which the Company owns. Costs incurred by the Company for manufacturing of initial commercial product of COSELA in preparation of
commercial launch were expensed prior to FDA approval.

4. Property and Equipment

Property and equipment consists of the following (in thousands):

Computer equipment

Laboratory equipment
Furniture and fixtures
Leasehold improvements
Manufacturing equipment
Accumulated depreciation

Property and equipment, net

December 31, 2022

December 31, 2021

$

$

327  $
334 
866 
1,782 
506 
(1,826)

1,989  $

327 
334 
866 
1,782 
— 
(1,296)

2,013 

Depreciation expenses relating to property and equipment were $530 thousand, $469 thousand, and $582 thousand for the years ended December 31, 2022,
2021 and 2020, respectively.

F-17

5. 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. In May 2022, the Company notified the University that it was terminating the license agreement. After completing the
evaluation of the Company’s rintodestrant partnering options and recent data in the highly competitive oral SERD space, the Company made the strategic
decision to discontinue the program. The Company reverted the rights back to the originator, the University, during the third quarter of 2022; there are no
additional financial obligations due to the originator resulting from the reversion.

6. 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

7. Leases

December 31, 2022

December 31, 2021

$

$

268  $

4,304 
15,566 
5,419 

25,557  $

773 
8,058 
9,579 
4,770 

23,180 

The Company adopted ASC 842 as of January 1, 2019. Prior period amounts have not been adjusted and continue to be reported in accordance with the
Company's 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. The Lease term ended on December 31, 2022 and was not renewed.

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.

The  tables  below  reflect  the  Company’s  lease  position  and  weighted-average  lease  terms  and  discount  rates  for  its  operating  leases  as  of  December  31,
2022.  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, the Company used its incremental borrowing rate based on the information available at the lease commencement date.

F-18

(in thousands)

Assets
Operating lease assets

Total lease assets

Liabilities
Current

Operating
Non-current
Operating

Total lease liabilities

Lease Term and Discount Rate

Weighted-average remaining lease term (years)

Operating leases

Weighted-average discount rate

Operating leases

Classification on the Balance Sheet

December 31, 2022

Operating lease assets

Other current liabilities

Operating lease liabilities

$

$

$

$

5,962 

5,962 

1,135 

5,615 

6,750 

December 31, 2022

4.8

8.0 %

The table below presents information related to the lease costs for operating leases (in thousands):

(in thousands)

Classification

2022

2021

2020

Year Ended December 31,

1
Operating lease costs

Total operating lease costs

Research and development

Selling, general and administrative

$

$

618  $

1,048 

1,666  $

799  $
870 

1,669  $

955 
1,191 

2,146 

Includes variable lease costs which are immaterial.
1

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, 2022 (in thousands):

Years ending December 31,

2023
2024
2025
2026
2027

Total future minimum lease payments

Less: present value adjustment

Total operating lease liabilities

Operating leases

$

$

$

1,634 
1,679 
1,725 
1,773 
1,357 

8,168 
(1,418)

6,750 

Cash payments included in the measurement of the Company's operating leases were $1,703 thousand for the twelve months ended December 31, 2022.

F-19

 
 
 
 
8. 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 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  of  COSELA  for  metastatic
colorectal cancer and receiving FDA approval for COSELA for small cell lung cancer (the "Performance Milestone”), the second tranche of $20.0 million
became available to the Company for drawdown through December 15, 2021. The third tranche of $30.0 million was available through December 31, 2022.
The fourth tranche of $20.0 million was available at Hercules’ approval through December 31, 2022. On March 31, 2021, the Company entered into the
First Amendment to Loan and Security Agreement (the “First Amendment”) with Hercules whereby the Company drew the remaining $10.0 million of the
first  tranche  and  the  interest  rate  and  financial  covenants  were  amended.  Unless  loan  advances  exceeded  $40.0  million,  no  financial  covenants  were
required.

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%. Based on original terms of the Loan Agreement, the Company will make interest only payments through June 1,
2022  and  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. Based on the original terms of the Loan Agreement, upon satisfaction of the Performance Milestone, the interest only period was
extended through January 1, 2023 and the maturity date was extended to June 1, 2025. Upon entering into the First Amendment on March 31, 2021, the
interest rate was amended to the greater of either (i) (a) the prime rate as reported in The Wall Street Journal, plus (b) 6.20%, and (ii) 9.45%.

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 have been accrued over the term of the loan using effective-interest method.

On  November  1,  2021,  the  Company  entered  into  a  Second  Amendment  to  Loan  and  Security  Agreement  (the  “Second  Amendment”)  under  which
Hercules agreed to lend the Company up to $150.0 million, to be made available in a series of tranches, subject to certain terms and conditions. The first
tranche was increased to $100.0 million. At close of the Second Amendment, the Company borrowed an additional $45.0 million from the first tranche.
The  Company  had  the  right  to  request  that  Hercules  make  the  remaining  $25.0  million  term  loan  advance  under  the  first  tranche  to  the  Company  by
September 15, 2022, which the Company did not exercise. The second tranche of $20.0 million will become available to the Company upon achievement
of $50.0 million trailing six-month net product revenue of COSELA no later than June 30, 2023 and will be available through December 15, 2023. The
third tranche of $15.0 million will become available upon achievement of certain development performance milestones and available through December
15, 2023. The fourth tranche of $15.0 million will be available at Hercules’ approval through June 30, 2024.

Amounts borrowed under the Second Amendment 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)  5.90%,  and  (ii)  9.15%.  The  Company  will  make  interest  only  payments  through  December  1,  2024  and  may  be  extended  through
December  1,  2025,  in  quarterly  increments,  subject  to  compliance  with  covenants  of  the  Second  Amendment.  Following  the  interest  only  period,  the
Company will repay the principal balance and interest of the advances in equal monthly installments through November 1, 2026.

The Company may prepay advances under the Second Amendment, 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 from the closing of the Second Amendment; (b) 2.0% of the prepayment amount in the second year from the closing of
the Second Amendment; and (c) 1.0% of the prepayment amount in the third year from the closing of the Second Amendment.

F-20

Upon prepayment or repayment of all or any of the advances under the Second Amendment, the Company will pay (in addition to the prepayment charge)
an end of term charge of 6.75% of the aggregate amount funded. The Company will be required to make a final payment to Hercules in the amount of
6.75% of the amounts funded, less any amount previously paid. In addition, the Company will be required to make a payment to the lender for $2.1 million
on the earliest occurrence of (i) June 1, 2025, (ii) the date the Company repays the outstanding principal amount in full, or (iii) the date that the principal
amount becomes due and payable in full.

The  Second  Amendment  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 Second Amendment contains a minimum revenue covenant. Beginning August 15, 2022, with the reporting of the financial results for the second fiscal
quarter  ended  June  30,  2022,  and  tested  monthly,  the  Company  must  have  achieved  net  product  revenue  of  COSELA  of  at  least  65%  of  the  amounts
projected  in  the  Company’s  forecast.  Testing  of  the  minimum  revenue  covenant  shall  be  waived  at  any  time  in  which  either  (a)  the  Company’s  market
capitalization exceeds $750.0 million and the Company maintains unrestricted cash equal to at least 50% of the total amounts funded, or (b) the Company
maintains unrestricted cash equal to at least 100% of the total amounts funded.

The Company evaluated the Second Amendment under the guidance found in ASC 470-50 Modification and Extinguishment.  The  Company  concluded
that the previous debt under the Loan Agreement was extinguished based on the difference in present value of the cash flows of the Loan Agreement and
the  Second  Amendment.  Accordingly,  the  difference  between  the  carrying  value  of  the  Loan  Agreement  as  of  November  1,  2021,  including  the
unamortized debt issuance costs, and the fair value of the Second Amendment was recorded as a $0.2 million loss on extinguishment of debt for the twelve
months ended December 31, 2021. Fees paid to third parties directly related to the funded portion of the Second Amendment have been capitalized as debt
issuance costs and will be amortized to interest expense over the life of the Second Amendment using the effective interest method. Fees paid that were
directly  related  to  the  unfunded  portion  is  account  for  as  a  deferred  financing  charge  and  amortized  to  interest  expense  over  the  period  the  unfunded
portions  are  available.  The  end  of  term  charges  associated  with  the  Second  Amendment  are  being  accreted  through  interest  expense  using  the  effective
interest method over the related term of the debt.

On  June  24,  2022,  the  Company  entered  into  a  Third  Amendment  to  Loan  and  Security  Agreement  (the  “Third  Amendment”)  with  Hercules  which
extended the time for drawing the remainder of the first tranche advance of up to $25.0 million from September 15, 2022 to December 31, 2022, which the
Company did not exercise. The Third Amendment also added a minimum cash covenant whereby the Company must maintain unrestricted cash equal to at
least 50% of the outstanding debt, and such percentage shall decrease upon the Company achieving specified net product revenue of COSELA. It further
provides for a minimum revenue covenant that, beginning August 15, 2022 with the reporting of the financial results for the second fiscal quarter ended
June 30, 2022, and tested monthly, the Company must have achieved net product revenue of COSELA of at least 80% of the amounts projected in the
Company’s  forecast.  Testing  of  the  minimum  revenue  covenant  shall  be  waived  at  any  time  in  which  either  (a)  the  Company’s  market  capitalization
exceeds  $750.0  million  and  the  Company  maintains  unrestricted  cash  equal  to  at  least  50%  of  the  total  amounts  funded,  or  (b)  the  Company  maintains
unrestricted cash equal to at least 100% of the total amounts funded. The Company evaluated the Third Amendment under the guidance found in ASC 470-
50 Modification and Extinguishment.  The  Company  concluded  that  the  Third  Amendment  was  a  modification  and  there  was  no  impact  to  the  financial
statements.

F-21

On November 1, 2022, the Company entered into a Fourth Amendment to Loan and Security Agreement (the “Fourth Amendment”) with Hercules which
extended the time for drawing the remainder of the first tranche advance of up to $25.0 million from December 31, 2022 to June 30, 2023. The Fourth
Amendment continues to provide for a minimum revenue covenant, tested monthly, where we must achieve net product revenue of COSELA of at least
80% of the amounts projected in our forecast. The Fourth Amendment also amended the minimum cash covenant such that if the outstanding debt is less
than  or  equal  to  $75.0  million,  the  Company  must  maintain  unrestricted  cash  equal  to  at  least  65%  of  the  outstanding  debt  in  addition  to  meeting  the
required revenue covenant. In addition, if the outstanding debt is greater than $75.0 million, the Company must maintain unrestricted cash equal to at least
70%  of  the  outstanding  debt  while  meeting  the  revenue  covenant.  If  the  Company  achieves  specified  net  revenue  of  COSELA,  the  cash  percentage
decreases  to  45%  of  the  outstanding  debt.  Testing  of  the  minimum  revenue  covenant  shall  be  waived  at  any  time  in  which  either  (a)  our  market
capitalization exceeds $750.0 million and we maintain unrestricted cash equal to at least 50% of the total amounts funded, or (b) we maintain unrestricted
cash equal to at least 100% of the total amounts funded. The Fourth Amendment also re-set the prepayment premiums associated with any prepayment of
the loans under the Loan and Security Agreement. The Company evaluated the Fourth Amendment under the guidance found in ASC 470-50 Modification
and Extinguishment. The Company concluded that the Fourth Amendment was a modification and there was no impact to the financial statements.

The Loan Agreement contains events of default, including a material adverse change, which is subjectively defined, in the Company’s business, payment
defaults, and breaches of covenants following any applicable cure period. In the event of default by the Company under the Loan Agreement, the Company
may be required to repay all amounts then outstanding under the Loan Agreement. The Company has determined that subjective acceleration under the
material adverse events clause included in the Loan Agreement is not probable and, therefore, has classified the outstanding principal amount in long-term
liabilities based on the timing of scheduled principal payments. As of December 31, 2022 and as of the date of the issuance of these financial statements,
the Company was in compliance with all covenants and has not been notified of an event of default by the lender under the Loan Agreement.

As of December 31, 2022 the future principal payments due under the Loan Agreement, excluding interest, are as follows (in thousands):

2023

2024
2025
2026
Total principal outstanding

End of term charge
Unamortized debt issuance costs
Total

9. Stockholders’ Equity

Common stock

Amount

— 
2,742 
35,287 
36,971 

75,000 
2,709 
(695)

77,014 

$

$

$

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,  2022  and  2021,
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.

On June 15, 2018, the Company entered into a sales agreement for “at the market offerings” with Cowen and Company, LLC (“Cowen”), which allowed
the Company 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 its agent. Between January 14, 2021 and February 9, 2021, the Company 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,  the  Company  has  used  the  entirety  of  the  remaining
availability under the 2018 sales agreement with Cowen.

F-22

On July 2, 2021, the Company filed an automatic shelf registration statement on Form S-3 with the Securities and Exchange Commission (the “SEC”),
which  became  effective  upon  filing,  pursuant  to  which  the  Company  registered  for  sale  an  unlimited  amount  of  any  combination  of  its  common  stock,
preferred stock, debt securities, warrants, rights and/or units from time to time and at prices and on terms that the Company may determine, so long as the
Company continued to satisfy the requirements of a “well-known seasoned issuer” under SEC rules (the “2021 Form S-3”).

In  connection  with  the  2021  Form  S-3,  on  July  2,  2021,  the  Company  entered  into  a  sales  agreement  for  “at  the  market  offerings”  with  Cowen,  which
allowed the Company to issue and sell shares of common stock pursuant to the 2021 Form S-3 for total gross sales proceeds of up to $150.0 million from
time to time through Cowen, acting as its agent (the “2021 Sales Agreement”). The Company did not sell any shares of common stock under the 2021 Sales
Agreement.

Since  the  Company  no  longer  qualified  as  a  “well-known  seasoned  issuer”  as  such  term  is  defined  in  Rule  405  under  the  Securities  Act  of  1933,  as
amended, at the time of the filing of the Company’s 2021 Form 10-K in February 2022, the Company filed an automatic post-effective amendment to the
2021  Form  S-3  on  Form  POSASR  prior  to  filing  of  the  Company’s  2021  Form  10-K,  which  became  effective  upon  filing,  to  register  for  sale  up  to
$300.0 million of any combination of its common stock, preferred stock, debt securities, warrants, rights and/or units from time to time and at prices and on
terms that the Company may determine and, as required by SEC rules, and another post-effective amendment to the 2021 Form S-3 on Form POS AM after
the filing of the Company’s 2021 Form 10-K. The post-effective amendment to the 2021 Form S-3 on Form POS AM was declared effective by the SEC on
May 3, 2022 and the 2021 Form S-3 will remain in effect for up to three years from the date it originally became effective, which was July 2, 2021. The
2021 Form S-3 also includes a prospectus covering up to an aggregate of $100.0 million in common stock that the Company may issue and sell from time
to time, through Cowen acting as its sales agent, pursuant to that certain sales agreement that the Company entered into with Cowen on February 23, 2022
(the “2022 Sales Agreement”). In connection with the Company entering into the 2022 Sales Agreement with Cowen, the Company terminated the 2021
Sales Agreement. As of the date hereof, the Company has not sold any shares of common stock or other securities under the 2022 Sales Agreement for “at
the market offerings.”

On November 17, 2022, the Company entered into an underwriting agreement related to a public offering of 7,700,000 shares of common stock at a public
offering price of $6.50 per share less the underwriting discounts and commissions, pursuant to the shelf registration statement on Form S-3. The Company
received  approximately  $50.1  million  in  gross  proceeds  from  this  offering,  before  deducting  underwriting  discounts  and  commissions  and  offering
expenses. The offering closed on November 22, 2022. In addition, 873,353 shares of common stock were issued upon exercise by the underwriters of their
option to purchase additional shares at the same offering price, which closed on December 20, 2022. The gross proceeds from the offering of the aggregate
of 8,573,353 shares of the Company's common stock were $55.7 million and net proceeds of $52.0 million, after deducting underwriting discounts and
commissions and other offering expenses payable by the Company.

Preferred stock

The Company is authorized to issue 5,000,000 shares of undesignated preferred stock in one or more series. As December 31, 2022, no shares of preferred
stock were issued or outstanding.

Shares Reserved for Future Issuance

The Company has reserved authorized shares of common stock for future issuance at December 31, 2022 and December 31, 2021 as follows:

Common stock options outstanding

RSUs outstanding
Options and RSUs available for grant under Equity Incentive Plans

December 31, 2022

December 31, 2021

7,372,028 
675,406 
2,323,539 

10,370,973 

6,701,727 
414,991 
1,771,635 

8,888,353 

F-23

10. Stock-Based Compensation

2011 Equity Incentive Plan

In  March  2011,  the  Company  adopted  the  2011  Equity  Incentive  Plan  (the  “2011  Plan”).  The  2011  Plan  provided  for  the  direct  award  or  sale  of  the
Company’s common stock and for the grant of stock options to employees, directors, officers, consultants and advisors of the Company. The 2011 Plan was
subsequently  amended  in  August  2012,  October  2013,  February  2015,  December  2015,  April  2016  and  November  2016  to  allow  for  the  issuance  of
additional  shares  of  common  stock.  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,  2022,  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.

Beginning in January 2021, the Company began granting Restricted Stock Units (“RSUs”) under the 2017 Plan. RSUs are granted at the fair market value
of a share of common stock on the date of grant.

As of December 31, 2022, there were a total of 1,738,639 shares of common stock available for future issuance under the 2017 Plan.

Amended and Restated 2021 Inducement Equity Incentive Plan

In February 2021, the Company adopted the 2021 Inducement Equity Incentive Plan (the “2021 Inducement Plan”). The 2021 Inducement Plan provides
for  the  grant  of  up  to  500,000  non-qualified  options,  stock  grants,  and  stock-based  awards  to  employees  and  directors  of  the  Company.  The  2021
Inducement Plan does not include an evergreen provision.

In September 2021, the Company adopted the 2021 Sales Force Inducement Equity Incentive Plan (the “2021 Sales Force Inducement Plan”). The 2021
Sales Force Inducement Plan provides for the grant of up to 500,000 non-qualified options, stock grants, and stock-based awards to sales force individuals
and support staff that were not previously employees or directors of the Company. The 2021 Sales Force Inducement Plan does not include an evergreen
provision.

In  March  2022,  the  Company  merged  the  2021  Sales  Force  Inducement  Plan  into  the  2021  Inducement  Plan  and  amended  and  restated  the  2021
Inducement Plan to create the Amended and Restated 2021 Inducement Equity Incentive Plan (the “Amended and Restated 2021 Plan”). In addition, the
number of shares reserved for issuance under the Amended and Restated 2021 Plan was increased by 750,000 shares of the Company’s common stock, for
an  aggregate  of  1,750,000  shares  of  the  Company’s  common  stock  authorized  to  issue  under  the  Amended  and  Restated  2021  Plan.  The  Amended  and
Restated 2021 Plan does not include an evergreen provision.

As of December 31, 2022, there was a total of 584,900 shares of common stock available for future issuance under the Amended and Restated 2021 Plan.

F-24

Stock-based Compensation

The Company recognizes compensation costs related to stock options granted to employees based on the estimated fair value of the awards on the date of
grant, net of estimated forfeitures. 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. Share-based awards granted to non-employee directors as compensation for
serving on the Company’s Board of Directors are accounted for in the same manner as employee share-based compensation awards.

The Company calculates 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 the Company’s common stock, the assumed dividend yield, the expected term of the
Company’s stock options and the fair value of the underlying common stock on the date of grant.

The Company also incurs stock-based compensation expense related to RSUs. The fair value of RSUs is determined by the closing market price of the
Company’s common stock on the date of grant and then recognized over the requisite service period of the award.

The table below summarizes the stock-based compensation expense recognized in the Company’s statement of operations by classification (in thousands):

Cost of goods sold
Research and development
Selling, general and administrative
Total stock-based compensation expense

Stock options – Black-Scholes inputs

Year Ended December 31,

2022

2021

2020

$

$

207  $

3,956 
16,426 
20,589  $

252  $

4,811 
17,256 
22,319  $

— 
6,902 
11,868 
18,770 

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

2022

76.7% - 81.4%
1.4% - 4.2%
—%
6.00
$6.50

Year Ended December 31,

2021

76.8% - 79.6%
0.4% - 1.3%
—%
6.00
$11.93

2020

74.8% - 81.0%
0.3% - 1.7%
—%
6.02
$12.17

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.

F-25

Stock Option Activity

The following table is a summary of stock option activity during 2022 is as follows:

Weighted average

Options 
outstanding

Weighted
average
exercise
price

Remaining
contractual
for
life (Years)

Balance as of December 31, 2021

Granted

Cancelled
Exercised
Balance as of December 31, 2022

Exercisable at December 31, 2022

Vested at December 31, 2022 and expected to vest

6,701,727  $

1,759,539 
(882,630)
(206,608)

7,372,028  $

4,562,674 
7,372,028 

17.88 

9.62 
19.87 
0.75 

16.15 

17.85 
16.15 

Aggregate
intrinsic
value

(in thousands)

7.2 $

10,427 

6.9 $

5.8
6.9

3,281 

3,248 
3,281 

As of December 31, 2022, unrecognized compensation expense related to unvested stock options totaled $22.4 million, which is expected to be recognized
over a weighted-average period of approximately 2.2 years.

Prior to the Company's initial public offering, the fair value of the Company's common shares underlying the Company's stock options was estimated on
each grant date by the board of directors. In order to determine the fair value of the Company's common shares underlying granted stock options, the board
of  directors  considered,  among  other  things,  timely  valuations  of  the  Company's  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.

Restricted Stock Units

The  Company’s  restricted  stock  units  (“RSUs”)  are  considered  nonvested  share  awards  and  require  no  payment  from  the  employee.  For  each  RSU,
employees receive one common share at the end of the vesting period. Compensation cost is recorded based on the market price of the Company’s common
stock on the grant date and is recognized on a straight-line basis over the requisite service period.

The following table is a summary of the RSU activity for the twelve months ended December 31, 2022:

Balance as of December 31, 2021

Granted

Cancelled
Vested
Balance as of December 31, 2022

Number of
RSUs

Weighted – Average
Fair Value
per Share

414,991  $

510,831 
(93,091)
(157,325)

675,406  $

18.24 

9.43 
12.34 
18.58 

12.31 

As of December 31, 2022, there was $5.8 million of total unrecognized compensation cost related to Company RSUs that are expected to vest. These costs
are expected to be recognized over a weighted-average period of approximately 2.4 years.

F-26

 
 
 
 
 
 
 
 
11. License Revenue

Incyclix License Agreement

On May 22, 2020, the Company entered into an exclusive license agreement with Incyclix Bio, LLC (“Incyclix”), formerly ARC Therapeutics, LLC, a
company primarily owned by a related party, whereby the Company granted to Incyclix 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
Incyclix 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.  In  the  first  quarter  of  2022,  Incyclix  announced  a  new  round  of  financing  which  the
Company did not participate. Following the financing, the Company's equity interest is now approximately 6.5%.

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 Incyclix 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 Incyclix 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 Incyclix 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.

There was no revenue recognized during the twelve months ended December 31, 2022.

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. 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, which
resulted in the recognition of $6.0 million in revenue in accordance with ASC 606. Through December 31, 2021, the Company recognized an additional
$3.0 million in revenue for the achievement of development and commercial milestones as defined by the license agreement.

There was no milestone revenue recognized during the twelve months ended December 31, 2022.

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.

F-27

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. 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 which
resulted in the recognition of $20.0 million in revenue in accordance with ASC 606. 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.

During the twelve months ended December 31, 2022, the Company recognized revenue of $2.4 million for the reimbursement of clinical trial costs and
$0.3 million for the reimbursement of patent costs. No development and commercial milestones, as defined by the agreement, have been achieved through
December 31, 2022.

Simcere License Agreement

On August 3, 2020, the Company entered into an exclusive license agreement with 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. In 2020, the Company transferred the license and related technology and know-how
to  Simcere,  which  resulted  in  the  recognition  of  $14.0  million  in  revenue  in  accordance  with  ASC  606.  Through  December  31,  2021  the  Company
recognized an additional $8.0 million in revenue for the achievement of development and commercial milestones as defined by the license agreement.

During the twelve months ended December 31, 2022, the Company recognized $2.3 million for reimbursement of clinical trial costs and $0.7 million for
drug supply sold to Simcere. There was $14.0 million of milestone revenue recognized during the twelve months ended December 31, 2022.

12. 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, 2022, 2021 and 2020, 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

Unvested RSUs
Total potential dilutive shares

Amounts in the table above reflect the common stock equivalents of the noted instruments.

F-28

Year Ended December 31,

2022

2021

2020

7,692,064 
636,978 

8,329,042 

7,056,745 
451,138 

7,507,883 

6,576,688 
— 

6,576,688 

13. 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, 2022 and 2021, 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,
2022 and 2021, 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,

2022

2021

2020

$

—  $
— 
1,700 

1,700 

— 
— 
— 

—  $
— 
925 

925 

— 
— 
— 

— 
— 
1,410 

1,410 

— 
— 
— 

$

1,700  $

925  $

1,410 

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):

Federal income tax benefit at statutory rate:
Increase (reduction) in income tax resulting from:

State Income Taxes
Increase in Valuation Allowance
Stock Compensation
Research and Development Credit
NC Tax Rate Change
Foreign Withholding Tax
Other

Year ended December 31,

2022

2021

2020

$

(30,631) $

(30,960) $

(20,547)

(5,372)
36,472 
2,879 
(3,521)
— 
1,700 
173 

(1,923)
27,618 
108 
(3,030)
8,359 
925 
(172)

$

1,700  $

925  $

(1,779)
23,782 
1,341 
(3,091)
— 
1,410 
294 

1,410 

F-29

 
 
 
 
 
 
On  November  18,  2021,  North  Carolina  enacted  the  2021  Appropriations  Act,  which  included  a  gradual  corporate  income  tax  rate  decrease  from  the
current 2.5% to 0% by 2030. The Company is in a cumulative loss position and does not have significant deferred tax liabilities that can be utilized as a
source  of  taxable  income  in  the  future.  Therefore,  the  Company  has  reduced  its  North  Carolina  deferred  tax  assets,  including  the  NOLs,  to  zero,  as  no
benefit is expected to be realized from these deferred tax assets prior to 2030 when there would be no income tax in North Carolina. The reduction in the
value of the deferred tax assets resulted in $8.4 million of tax expense in the year ended December 31, 2021, which was offset fully by the reduction in the
corresponding valuation allowance. If the Company becomes profitable prior to 2030, the Company will recognize an income tax benefit related to the
portion of its North Carolina deferred tax assets utilized.

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, 2022 and 2021 (in thousands):

Deferred tax assets

Accrued expenses
Operating lease liabilities
Stock compensation
R&D credits
Net operating loss carryforwards
Nondeductible Interest
Research and experimentation costs
Other

Deferred tax assets

Deferred tax liabilities

Operating lease assets
Other

Deferred tax liabilities

Valuation allowance

Net deferred tax assets

Year ended December 31,

2022

2021

$

4,127  $
1,596 
10,518 
20,516 
117,896 
2,178 
17,945 
571 

175,347 

(1,410)
(65)

(1,475)

(173,872)

$

—  $

2,633 
1,730 
9,037 
16,995 
108,489 
— 
— 
191 

139,075 

(1,548)
(127)

(1,675)

(137,400)

— 

Under the Tax Act, specified research and experimentation costs under Section 174 of the Code are required to be capitalized and amortized ratably over
five years for domestic expenditures and over 15 years for foreign expenditures. This provision of Section 174 became effective for tax years beginning
after December 31, 2021. As a result of the capitalization of these costs in the current year, the Company has recorded a $17.9 million deferred tax asset.

At December 31, 2022 and December 31, 2021, 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 increased $36.5 million
from $137.4 million at December 31, 2021 to $173.9 million at December 31, 2022. The increase in valuation allowance was due primarily to the increase
in net operating loss carryforwards, capitalized research and experimentation costs, 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

1
Write-offs

Balance at end of year

Includes impact of NC enacted tax rate change

1.

2022

2021

2020

137,400  $
36,472 

— 

109,782  $
35,961 

(8,343)

173,872  $

137,400  $

86,000 
25,170 

(1,388)

109,782 

$

$

F-30

At December 31, 2022, the Company has federal net operating loss carryforwards (“NOLs”) of approximately $545.1 million, which are available to offset
future  taxable  income.  Of  the  $545.1  million  available,  $95.4  million  will  begin  to  expire  in  2029.  The  remaining  $449.7  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. 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 $369.4 million, which are available to offset future state taxable income. The state net operating loss carryforwards are inclusive of
North Carolina net operating losses, which are recorded at zero benefit, as discussed in this footnote. 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, 2022, the Company also had federal research and development (R&D) credit carryforwards of approximately
$20.5 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, 2022 and 2021, 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,
2022 and 2021, 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.

14. Related Party Transactions

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.

F-31

15. Quarterly Results of Operations (Unaudited)

The following table contains quarterly financial information for 2022 and 2021. 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.

Product sales, net

License revenue
Total revenues

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

Product sales, net

License revenue
Total revenues

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

16. Subsequent Event

Three Months Ended

(unaudited)

(in thousands, except share and per share amounts)

March 31, 2022

June 30, 2022

September 30, 2022

December 31, 2022

5,480  $
1,422 

6,902 

53,683 

(46,781)

(2,411)

(49,192)
— 
(49,192) $

(1.15) $

8,718  $
1,855 

10,573 

47,535 

(36,962)

(2,484)

(39,446)
— 
(39,446) $

(0.92) $

8,269  $

15,307 

23,576 

45,124 

(21,548)

(2,505)

(24,053)
1,219 
(25,272) $

(0.59) $

42,687,201

42,707,703

42,799,342

8,870 
1,380 

10,250 

41,137 

(30,887)

(2,281)

(33,168)
481 
(33,649)

(0.73)
46,279,808

March 31, 2021

June 30, 2021

September 30, 2021

December 31, 2021

609  $

13,609 

14,218 
39,753 

(25,535)

(769)

(26,304)
138 
(26,442) $

(0.65) $

2,532  $
4,072 

6,604 
44,796 

(38,192)

(1,010)

(39,202)
220 
(39,422) $

(0.94) $

3,576  $
1,282 

4,858 
46,002 

(41,144)

(1,003)

(42,147)
321 
(42,468) $

(1.00) $

40,700,827 

42,119,850 

42,383,573 

4,403 
1,393 

5,796 
43,382 

(37,586)

(2,188)

(39,774)
246 
(40,020)

(0.94)
42,544,321 

$

$

$

$

$

$

On February 13, 2023, the Company made the decision to discontinue PRESERVE 1 following the announcement of top line results. In connection with the
announcement, on February 22, 2023, the Company approved changes to the Company's organization as well as a broader operational cost reduction plan.
As  part  of  this  plan,  the  Company  approved  a  reduction  in  the  Company's  workforce  by  approximately  30%  across  different  areas  and  functions  in  the
Company to be effective on March 1, 2023. Affected employees were offered separation benefits, including severance payments. The Company estimates
that the severance and termination-related costs will total approximately $1.4 million and expects to record these charges in the first quarter of 2023. The
Company expects that payments of these costs will be substantially complete through the end of the first quarter of 2023.

F-32

EXHIBIT 10.22

February 28, 2023

Jennifer K. Moses
109 Cedar Cliff Ct.
Cary, NC 27518

Re:    Senior Advisor Agreement

Dear Jennifer:

        I  am  providing  this  letter  agreement  (the  “Agreement”)  to  confirm  the  terms  of  your  senior  advisor  engagement  with  G1
Therapeutics,  Inc.  (the  “Company”). We  appreciate  all  of  your  efforts  and  contributions  to  the  Company,  and  look  forward  to
entering into this engagement and continuing our valuable work relationship with each other.

1.

Senior  Advisor.  We  anticipate  that  you  shall  continue  to  serve  as  the  Company’s  Chief  Financial  Officer  until
March  15,  2023,  continue  as  an  employee  until  March  31,  2023  under  your  Employment  Agreement  with  the  Company  (as
amended, the “Employment Agreement”),  and  then  transition  to  the  role  of  senior  advisor  to  the  Company.  You  shall  perform
services as a Senior Advisor for a period of one (1) year, from March 31, 2023 (the “Advisor Start Date”)  through  March  31,
2024 (the “Senior Advisor Term”). As a Senior Advisor, you shall report to the Company’s Chief Executive Officer (“CEO”), and
provide financial and accounting advice and assistance to the CEO, to the Company, and other services as reasonably requested
by  the  CEO.  It  is  anticipated  that  you  shall  perform  services  as  a  Senior  Advisor  on  average  of  five  (5)  hours  per  week.  The
Company shall pay you a fee of Twenty-Five Thousand Dollars ($25,000) annually for your services (the “Senior Advisor Fee”),
paid in equal monthly installments in accordance with the Company’s normal practices. In addition, the Company shall reimburse
you  for  business  related  expenses  incurred  as  a  Senior  Advisor,  pursuant  to  the  terms  and  conditions  of  applicable  Company
policies. You may terminate your services as a Senior Advisor upon sixty (60) days’ advance written notice to the Company, or
immediately  for  cause  in  the  event  of  the  material  breach  by  the  Company  of  its  obligations  hereunder  or  under  any  other
agreement between you and the Company. The Company may terminate your services as a Senior Advisor immediately for cause
in the event of your gross negligence, willful misconduct, or material breach of your obligations hereunder, provided that you
shall have the opportunity to cure any alleged material breach following notice to you describing the basis therefor.

2.

Equity.    You  and  the  Company  acknowledge  and  agree  that  you  have  been  granted  Company  equity,  including
options to purchase common stock in the Company (the “Options”), restricted stock units (“RSUs”), and performance stock units
(“PSUs”) (the PSUs, together with the Options and RSUs, collectively the “Equity”) prior to the Advisor Start Date, pursuant to
the  Company’s  2011  Equity  Incentive  Plan  (the  “2011  Plan”)  and  Amended  and  Restated  2017  Employee,  Director  and
Consultant  Equity  Incentive  Plan  (the  “2017  Plan”)  (collectively,  the  “Equity  Incentive  Plans”)  and  stock  option  agreements,
RSU  agreements,  and  PSU  agreement  executed  by  you  pursuant  thereto.  As  we  have  agreed:  (a)  no  additional  equity  shall  be
granted to you during the Senior Advisor Term; (b) as a Senior Advisor you shall qualify as a consultant and/or service provider
under the Equity Incentive Plans; (c) rights and obligations with respect to vesting and exercise of the Equity shall remain subject
to the terms and conditions of the Equity Incentive Plans; and (d) continued vesting of outstanding Equity shall be subject to your
continued compliance with the Continuing Covenants. Notwithstanding the foregoing, in the event of a Change in Control (as
defined below), one hundred percent (100%) of any unvested portion of the Equity shall vest immediately prior to, and subject to,
the consummation of the Change in Control. For the purposes of this paragraph, a “Change in Control” means (i) the Company’s
merger or consolidation with or into another entity such that

the stockholders of the Company prior to such transaction do not or are not expected to own a majority of the voting stock of the
surviving entity, (ii) the sale or other disposition of all or substantially all of the assets of the Company, or (iii) the sale or other
disposition of greater than fifty percent (50%) of the then-outstanding voting stock of the Company by the holders thereof to one
or more persons or entities who are not then stockholders of the Company.

3.

Continuing Covenants. We acknowledge and agree that your obligations under your existing confidentiality and
intellectual property covenants contained in (i) Sections 10 of the Employment Agreement, (ii) the Employee Non-Competition
and  Non-Solicitation  Agreement  by  and  between  Employee  and  the  Company,  and  (iii)  the  Employee  Confidentiality  and
Inventions Agreement by and between Employee and the Company, and any similar covenants applicable to you (collectively the
“Continuing Covenants”) shall remain in effect following the Advisor Start Date pursuant to their terms, which are incorporated
herein and shall survive the signing of this Agreement.

4.

Acknowledgement and Waiver Regarding Employment Agreement. As stated above, prior to the Senior Advisor
Term  you  shall  continue  in  your  role  as  Chief  Financial  Officer  of  the  Company  under  the  Employment  Agreement.  Your
employment with the Company shall conclude on the Advisor Start Date, and your eligibility and entitlements under Company-
provided employment plans or programs shall be governed by the terms and conditions of such plans or programs (including, for
instance, the impact of employment separation on benefits eligibility). Notwithstanding the foregoing: (a) by signing below, you
expressly acknowledge and agree that the execution of this Agreement and the conclusion of your role as Chief Financial Officer
as described herein shall not constitute a termination without “Cause” or a resignation for “Good Reason” (as those terms are
defined  in  the  Employment  Agreement);  and  (b)  by  signing  below,  you  expressly  waive  your  right  to  receive  the  Separation
Benefits described in Section 4 of the Employment Agreement, and acknowledge that such waiver constitutes a valid waiver in
writing  signed  by  the  waiving  party  pursuant  to  Section  7  of  the  Employment  Agreement.  Except  as  otherwise  stated  in  this
Agreement, on the Advisor State Date this Agreement shall supersede the terms of the Employment Agreement, and shall be the
sole agreement between you and the Company.

1/

5.

Release.  In  exchange  for  the  mutual  promises  and  consideration  provided  in  this  Agreement,  you  waive  and
release your right to assert a legal claim against the Company  for any alleged action, inaction or circumstance existing or arising
from the beginning of time through the date of this Agreement. This waiver and release bars any form of legal claim, complaint
or other action (jointly “Claims”) against the Company seeking any form of relief, including equitable relief, the recovery of any
damages,  or  any  other  form  of  monetary  recovery  (including,  without  limitation,  back  pay,  front  pay,  compensatory  damages,
emotional  distress  damages,  punitive  damages,  attorney’s  fees  and  any  other  costs),  for  any  alleged  action,  inaction  or
circumstance existing or arising through the date of this Agreement. Without limiting the foregoing, you specifically waive and
release  the  Company  from  any  waivable  claim  arising  from  or  related  to  your  relationship  with  the  Company,  including:  (i)
Claims under any local, state, or federal employment-related statute, regulation, or executive order (as amended) relating to the
employment relationship, including but not limited to the Age Discrimination in Employment Act, the Civil Rights Acts of 1866
and  1871,  Title  VII  of  the  Civil  Rights  Act  of  1964,  the  Civil  Rights  Act  of  1991,  the  Equal  Pay  Act,  the  Americans  With
Disabilities  Act,  the  Family  and  Medical  Leave  Act,  the  Genetic  Information  Non-Discrimination  Act,  the  Families  First
Coronavirus  Response  Act,  the  Uniformed  Services  Employment  and  Reemployment  Rights  Act  of  1994,  the  National  Labor
Relations  Act,  the  Employee  Retirement  Income  Security  Act  of  1974,  COBRA,  the  Worker  Adjustment  and  Retraining
Notification Act, the Lilly Ledbetter

    For the purposes of this section, the “Company” shall include G1 Therapeutics, Inc., its divisions, affiliates, parents and subsidiaries, and its and their

1/
respective officers, directors, employees, attorneys, agents and assigns.

2

Fair Pay Act, the North Carolina Equal Employment Practices Act, the North Carolina Retaliatory Employment Discrimination
Act, the North Carolina Persons with Disabilities Protection Act, and any similar North Carolina or other state or federal statute;
(ii) Claims under any other statute, regulation or executive order (as amended) relating to terms and conditions of employment,
including  any  North  Carolina  or  other  state  or  federal  statute;  (iii)  Claims  under  any  North  Carolina  or  other  state  or  federal
common  law  theory,  including  wrongful  discharge,  breach  of  express  or  implied  contract,  promissory  estoppel,  unjust
enrichment, breach of the covenant of good faith and fair dealing, retaliation, violation of public policy, defamation, interference
with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit,
fraud, or negligence, or any claim to attorneys’ fees under any applicable statute or common law theory of recovery; (iv) Claims
to any Separation Benefit described in Section 4 of the Employment Agreement.

    For the avoidance of doubt, the release in the above paragraph shall not: (i) include any claims relating to the obligations of the
Company under this Agreement; (ii) affect your vested and accrued rights as a participant in the Company’s 401(k) plan or other
benefit plan; or (iii) affect your rights with respect to the Equity awards as described in this Agreement. In addition, the parties
understand that nothing contained in this Agreement limits your ability to file a charge or complaint with the Equal Employment
Opportunity Commission, the National Labor Relations Board, the Occupational Safety and Health Administration, the Securities
and Exchange Commission or any other federal, state or local governmental agency or commission (the “Government
Agencies”), or limits your ability to communicate with any Government Agencies or otherwise participate in any investigation or
proceeding that may be conducted by any Government Agencies, including providing documents or other information, without
notice to Company, or limits your right to receive an award for information provided to any Government Agencies. You
understand, however, that, except as limited by the immediately preceding sentence, by signing this Agreement, you waive your
right to any monetary recovery in connection with Government Agencies proceedings and your right to file a claim seeking
monetary damages in any court, administrative agency or arbitral tribunal.

3

6.

Independent Contractor Status. As a Senior Advisor, you shall be an independent contractor, and you shall not be
considered an employee for purposes of any Company employment policy, plan or program. While serving as a Senior Advisor,
you shall not act as an agent of the Company, or have authority to bind, represent or speak for the Company. The Company shall
record Senior Advisor Fee payments on an IRS Form 1099, and shall not withhold any federal, state or local employment taxes
from the Senior Advisor Fee on your behalf; you agree to pay such taxes and accept liability for complying with applicable state
and  federal  laws  governing  self-employed  individuals.  Please  note  that  you  shall  be  free  to  provide  professional  consulting
services  to  individuals  or  entities  other  than  the  Company  during  the  Senior  Advisor  Term,  provided  you  meet  your  service
obligations to the Company as described herein, and further provided that you may not render services in a manner that violates
your legal obligations, including pursuant to the Continuing Covenants.

7.

Taxes. Both parties intend this Agreement to be in compliance with Section 409A of the Internal Revenue Code of
1986  (as  amended).  The  Company  does  not  guarantee  the  tax  treatment  or  tax  consequences  associated  with  any  payment  or
benefit arising under this Agreement, including, without limitation, related to Code Section 409A. In the event any payments or
benefits are deemed by the IRS to be non-compliant, this Agreement, at your option, shall be modified to the extent practicable,
so as to make it compliant by altering the payments or benefits, or the timing of their receipt, provided that no such modification
shall increase the Company’s obligations hereunder.

8.

General. The parties acknowledge and agree that, except for the Continuing Covenants, the Equity Incentive Plans
and  any  applicable  stock  option  agreement  executed  by  you  pursuant  thereto,  this  Agreement  supersedes  any  prior  or
contemporaneous oral and/or written agreements between you and the Company relating to the subject matter described herein,
and sets forth the entire agreement between you and the Company relating to such subject matter. No modifications hereof shall
be  deemed  valid  unless  reduced  to  writing  and  signed  by  the  parties.  The  failure  of  either  party  to  seek  enforcement  of  any
provision of this Agreement in any instance or for any period of time shall not be construed as a waiver of such provision or of
such party’s right to seek enforcement of such provision in the future. This Agreement shall be deemed to have been made in
North  Carolina  and  shall  be  construed  in  accordance  with  the  laws  of  North  Carolina  without  giving  effect  to  conflict  of  law
principles.  The  provisions  of  this  Agreement  are  severable,  and  if  for  any  reason  any  part  hereof  shall  be  found  to  be
unenforceable, the remaining provisions shall be enforced in full, provided, however, that if any or all of the release herein is held
unenforceable, this Agreement except for such release shall be deemed null and void.

        By  executing  this  Agreement,  the  parties  each  acknowledge  and  agree  that:  (1)  the  party  has  carefully  read  and
understood  the  terms  and  effects  of  this  Agreement;  (2)  the  party  has  been  afforded  sufficient  time  to  understand  the
terms  and  effects  of  this  Agreement;  (3)  the  party’s  agreements  and  obligations  hereunder  are  made  voluntarily,
knowingly  and  without  duress;  and  (4)  neither  party  or  its  agents  or  representatives  have  made  any  representations
inconsistent with the provisions of this Agreement.

[Signature Page Follows]

4

If this Agreement is acceptable to you, please sign, date and return the enclosed copy of this Agreement to me.

[Signature Page to Senior Advisor Agreement]

Confirmed and Agreed:

/s/ Jennifer K. Moses        
Jennifer K. Moses

Dated: February 28, 2023    

Very Truly Yours,

G1 Therapeutics, Inc.

/s/ James Stillman Hanson    
By: James Stillman Hanson     
Its: General Counsel    

5

    
EXHIBIT 10.25

EMPLOYMENT AGREEMENT

This EMPLOYMENT AGREEMENT (the “Agreement”), is made and entered into effective as of February 28, 2023

(the “Effective Date”), by and between G1 Therapeutics, Inc., a Delaware corporation (the “Company”), and John W. Umstead
V (“Employee”).

1.

EMPLOYMENT; DUTIES. The Company agrees to employ Employee as its Chief Financial Officer, and

Employee agrees to accept such employment upon the terms and conditions hereinafter set forth. Employee will perform such
services for the Company as are customarily associated with such position and as may otherwise be assigned to the Employee
from time to time by the Company’s Chief Executive Officer or his designee. Employee will devote Employee’s full business
time and attention to the business and affairs of the Company, and will perform Employee’s duties diligently and to the best of
Employee’s ability, in compliance with the Company’s policies and procedures and the laws and regulations that apply to the
Company’s business.

2.

TERM; TERMINATION. Employee’s employment under this Agreement will commence on March 15, 2023 (the
“Start Date”) and will continue until terminated by either party. Employee’s employment with the Company is at-will, and either
party can terminate the employment relationship and/or this Agreement at any time, for any or no cause or reason, and with or
without prior notice, subject to the applicable terms of Section 4. Upon termination of Employee’s employment by either party
for any reason, Employee will resign Employee’s position(s), if any, as an officer or director of the Company, as a member of the
Company’s Board of Directors (the “Board”) and any Board committees, as well as any other positions Employee may hold with
or for the benefit of the Company and/or its affiliates.

3.

COMPENSATION. As compensation for the services to be rendered by Employee under this Agreement, the

Company will provide the following compensation and benefits during Employee’s employment hereunder.

(a)    BASE SALARY. The Company will pay Employee a base salary (the

“Base Salary”) at an annual rate of Four Hundred and Five Thousand Dollars ($405,000), payable in equal installments in
accordance with the Company’s customary payroll practices as in effect from time to time. The Base Salary may be reviewed
from time to time by the Company and may be increased in the sole discretion of the Company. The Base Salary may also be
decreased in connection with any Company-wide decrease in executive compensation.

(b)

ANNUAL BONUS. Employee will be eligible to receive an annual calendar year bonus based upon

Employee’s and the Company’s achievement of certain individual and Company goals that will be set for Employee by the Board
or its designee (the “Annual Bonus”). The amount of the target Annual Bonus will be equal to forty percent (40%) of
Employee’s then-current Base Salary as of the date of the payment; provided that the actual amount of the Annual Bonus may be
greater or less than such target amount. The Board or its designee will have the sole discretion to set the applicable individual and
Company goals, to determine whether the goals have been met, and to determine the amount of the Annual Bonus. The Annual
Bonus for any given year, if any is earned, will be paid in accordance with, and subject to, the Company’s policies and procedures
in effect from

time to time. Employee must be employed by the Company on December 31 of the bonus year in order to receive the Annual
Bonus for that year.

(c)

EQUITY.

(i)    STOCK OPTIONS. Effective on March 15, 2023, Employee will be granted stock options to purchase
One Hundred Thousand (100,000) shares of the Company’s common stock (the “Options”) at a per share exercise price equal to
the Fair Market Value (as defined in the Company’s Amended and Restated 2017 Employee, Director and Consultant Equity
Incentive Plan) of the Company’s common stock on the date of grant. The Options will be, to the maximum extent permissible,
treated as “incentive stock options” within the meaning of Section 422 of the Internal Revenue Code and the rules and regulations
thereunder. The Options will be granted pursuant to and subject to the terms and conditions of the Company’s Amended and
Restated 2017 Employee, Director and Consultant Equity Incentive Plan and will be further subject to the terms of a stock option
agreement as approved by the Board setting forth the exercise price, vesting conditions and other restrictions. One fourth (1/4th)
of the total number of such Options will vest on the first anniversary of the date hereof, and one forty-eighth (1/48th) of the total
number of Options will vest each month over the following thirty-six (36) months thereafter, so long as Employee remains
employed by the Company through each such vesting date. One Hundred percent (100%) of any unvested Options will
immediately vest if Employee’s employment is terminated by the Company without Cause (as defined below) or Employee
resigns with Good Reason (as defined below) within ninety (90) days following a Change in Control. A “Change in Control”
means (i) the Company’s merger or consolidation with or into another entity such that the stockholders of the Company prior to
such transaction do not or are not expected to own a majority of the voting stock of the surviving entity, (ii) the sale or other
disposition of all or substantially all of the assets of the Company, or (iii) the sale or other disposition of greater than fifty percent
(50%) of the then-outstanding voting stock of the Company by the holders thereof to one or more persons or entities who are not
then stockholders of the Company.

(ii)    RESTRICTED STOCK UNITS. Effective on March 15, 2023, Employee will be granted Fifty

Thousand (50,000) restricted stock units (“RSUs”) with respect to the Company’s common stock. The RSUs will be subject to
the terms of a RSU award agreement as approved by the Board setting forth vesting conditions and other restrictions applicable to
the RSUs. The RSUs will vest over a four (4) year period following the Start Date, with one fourth (1/4) of the total number of
such RSUs vesting on each of the first, second, third, and fourth anniversaries of the Start Date, so long as Employee remains
employed by the Company through each such vesting date. One Hundred percent (100%) of any unvested RSUs will vest
immediately if Employee’s employment is terminated by the Company without Cause (as defined below) or Employee resigns
with Good Reason (as defined below) within ninety (90) days following a Change in Control (as defined above).

(d)

PAID TIME OFF. Employee will be eligible for paid time off in accordance with, and subject to, the

Company’s policies and procedures in effect from time to time.

(e)

BENEFITS. Employee will (subject to applicable eligibility requirements) receive such other benefits as

are provided from time to time to other similarly-situated employees of the Company pursuant to the Company’s policies and
procedures as they may be instituted from time to time. All such benefits are subject to the provisions of their respective plan
documents in accordance with their terms. Employee acknowledges and agrees that the Company has the unilateral right to

2

amend, modify or terminate its employee benefit plans or policies to the maximum extent allowed by law.

(f)

EXPENSE REIMBURSEMENT. The Company will reimburse Employee for all reasonable business
expenses incurred by Employee in connection with the performance of Employee’s duties hereunder, subject to Employee’s
compliance with the Company’s reimbursement policies in effect from time to time. All reimbursements provided under this
Agreement will be made or provided in accordance with the requirements of Section 409A of the Internal Revenue Code and the
rules and regulations thereunder including, where applicable, the requirement that (i) any reimbursement is for expenses incurred
during Employee’s lifetime (or during a shorter period of time specified in this Agreement); (ii) the amount of expenses eligible
for reimbursement during a calendar year may not affect the expenses eligible for reimbursement in any other calendar year; (iii)
the reimbursement of an eligible expense shall be made no later than the last day of the calendar year following the year in which
the expense is incurred; and (iv) the right to reimbursement or in kind benefits is not subject to liquidation or exchange for
another benefit.

(g) WITHHOLDINGS. The Company will withhold from any amounts payable under this Agreement, such

federal, state and local taxes, as the Company reasonably determines are required to be withheld pursuant to applicable law.

4.

EFFECT OF TERMINATION.

(a)

GENERALLY. When Employee’s employment with the Company is terminated for any reason, Employee,

or Employee’s estate, as the case may be, will be entitled to receive the compensation and benefits earned through the effective
date of termination, along with reimbursement for any approved business expenses that Employee has timely submitted for
reimbursement in accordance with the Company’s expense reimbursement policy or practice.

(b)

SEPARATION BENEFIT UPON CERTAIN TERMINATIONS. If the Company terminates Employee’s
employment without Cause (as defined below), or if Employee resigns Employee’s employment for Good Reason (as defined
below), then conditioned upon Employee executing a Release (as defined below) following such termination, Employee will be
entitled to receive an amount equal to payment of Employee’s then-current Base Salary for a period of twelve (12) months (the
“Separation Benefit”). The Separation Benefit is conditioned upon Employee executing a release of claims in a form satisfactory
to the Company (the “Release”) within the time specified therein, which Release is not revoked within any time period allowed
for revocation under applicable law. The Separation Benefit will be payable to Employee over time in accordance with the
Company’s payroll practices and procedures beginning on the sixtieth (60 ) day following the termination of Employee’s
employment with the Company, provided that the Company, in its sole discretion, may begin the payments earlier. For avoidance
of doubt, the termination of Employee’s employment as a result of Employee’s death or disability (meaning the inability of
Employee, due to the condition of Employee’s physical, mental or emotional health, effectively to perform the essential functions
of Employee’s job with or without reasonable accommodation for a continuous period of more than 90 days or for 90 days in any
period of 180 consecutive days, as determined by the Board in its sole discretion in consultation with a physician retained by the
Company) will not constitute a termination without Cause triggering the rights described in this Section 4(b).

th

3

(c)

CAUSE. For purposes of this Agreement, “Cause” means: (i) Employee’s fraud, embezzlement or
misappropriation with respect to the Company; (ii) Employee’s material breach of fiduciary duties to the Company; (iii)
Employee’s willful or negligent misconduct; (iv) Employee’s material breach of this Agreement; (v) Employee’s willful failure or
refusal to perform Employee’s material duties under this Agreement or failure to follow any specific lawful instructions of the
Company; (vi) Employee’s conviction or plea of nolo contendere in respect of a felony or of a misdemeanor involving moral
turpitude; (vii) Employee’s alcohol or substance abuse which has a material adverse effect on Employee’s ability to perform
Employee’s duties under this Agreement; or (viii) Employee’s engagement in a form of discrimination or harassment prohibited
by law (including, without limitation, discrimination or harassment based on race, color, religion, sex, national origin, age or
disability). In the event that the Company concludes that Employee has engaged in acts constituting Cause as defined in clause
(iii), (iv), (v), or (vii) above, prior to terminating this Agreement for Cause the Company will provide Employee with at least
fifteen (15) days’ advance written notice of the specific circumstances constituting such Cause, and an opportunity to correct
such circumstances.

(d)

GOOD REASON. In order for Employee to resign for Good Reason, Employee must provide written

notice to the Company of the existence of the Good Reason condition within thirty (30) days of the initial existence of such Good
Reason condition. Upon receipt of such notice, the Company will have thirty (30) days during which it may remedy the Good
Reason condition and not be required to provide for the benefits described in Section 4(b) above as a result of such proposed
resignation if successfully remedied. If the Good Reason condition is not remedied within such thirty (30) day period, Employee
may resign based on the Good Reason condition specified in the notice effective no later than thirty (30) days following the
expiration of the thirty (30) day cure period. For purposes of this Agreement, “Good Reason” means the occurrence of any of the
following events without Employee’s consent: (i) a material reduction of Employee’s Base Salary not generally applicable to
other executive-level employees of the Company, (ii) a material diminution of the Employee’s authority, duties, or
responsibilities, (iii) a relocation of Employee’s primary workplace to a location that is more than fifty (50) miles from the
location of Employee’s primary workplace as of the date hereof, or (iv) the Company’s material breach of this Agreement.

(e)

APPLICATION OF INTERNAL REVENUE CODE SECTION 409A. Notwithstanding anything to the

contrary set forth herein, any payments and benefits provided under this Section 4 that constitute “deferred compensation” within
the meaning of Section 409A of the Internal Revenue Code and the regulations and other guidance thereunder and any state law
of similar effect (collectively “Section 409A”) will not commence in connection with Employee’s termination of employment
unless and until Employee has also incurred a “separation from service” (as such term is defined in Treasury Regulation Section
1.409A-1(h) (a “Separation From Service”), unless the Company reasonably determines that such amounts may be provided to
Employee without causing Employee to incur an additional tax under Section 409A. The parties intend that each installment of
the Separation Benefits payments provided for in this Agreement is a separate “payment” for purposes of Treasury Regulation
Section 1.409A-2(b)(2)(i). For the avoidance of doubt, the parties intend that payments of the Separation Benefits set forth in this
Agreement satisfy, to the greatest extent possible, the exemptions from the application of Section 409A provided under Treasury
Regulation Sections 1.409A-1(b)(4), 1.409A-1(b)(5) and 1.409A-1(b)(9). However, if the Company determines that the
Separation Benefits constitute “deferred compensation” under Section 409A and Employee is, on the termination of service, a
“specified employee” of the Company or any successor entity thereto, as such term is defined in Section 409A, then, solely to the
extent necessary to avoid the incurrence of the

4

adverse personal tax consequences under Section 409A, the timing of the Separation Benefits payments will be delayed until the
earlier to occur of: (i) the date that is six months and one day after Employee’s Separation From Service, or (ii) the date of
Employee’s death (such applicable date, the “Specified Employee Initial Payment Date”), the Company (or the successor entity
thereto, as applicable) will (A) pay to Employee a lump sum amount equal to the sum of the Separation Benefits payments that
Employee would otherwise have received through the Specified Employee Initial Payment Date if the commencement of the
payment of the Separation Benefits had not been so delayed pursuant to this Section and (B) commence paying the balance of the
Separation Benefits in accordance with the applicable payment schedules set forth in this Agreement.

(f)    NO FURTHER OBLIGATIONS. Except as expressly provided above or as otherwise required by law, the

Company will have no obligations to Employee in the event of the termination of this Agreement for any reason.

5.

EMPLOYEE REPRESENTATIONS. Employee represents and warrants that Employee is not obligated or

restricted under any agreement (including any non-competition or confidentiality agreement), judgment, decree, order or other
restraint of any kind that could impair Employee’s ability to perform the duties and obligations required of Employee hereunder.
Employee further agrees that Employee will not divulge to the Company any confidential information and/or trade secrets
belonging to others, including Employee’s former employers, nor will the Company seek to elicit from Employee such
information. Consistent with the foregoing, Employee will not provide to the Company, and the Company will not request, any
documents or copies of documents containing such information.

6.

NOTICES. Any notice required to be given hereunder will be sufficient if in writing and hand delivered or sent by
mail, return receipt requested, postage prepaid, in the case of Employee, to Employee’s address shown on the Company’s records,
and in the case of the Company, to 700 Park Offices Drive, Suite 200, Research Triangle Park, North Carolina 27709, or to such
other addresses as either party shall specify to the other.

7.

AMENDMENT; WAIVER. No amendment of any provision of this Agreement will be valid unless the

amendment is in writing and signed by the Company and Employee. No waiver of any provision of this Agreement will be valid
unless the waiver is in writing and signed by the waiving party. The failure of a party at any time to require performance of any
provision of this Agreement will not affect such party’s rights at a later time to enforce such provision. No waiver by a party of
any breach of this Agreement will be deemed to extend to any other breach hereunder or affect in any way any rights arising by
virtue of any other breach.

8.

GOVERNING LAW; VENUE. This Agreement will be governed by and construed in accordance with the laws of

the State of North Carolina, without regard to that body of law known as choice of law. The parties agree that any litigation
arising out of or related to this Agreement or Employee’s employment by the Company will be brought exclusively in any state
or federal court in Durham County, North Carolina. Each party (i) consents to the personal jurisdiction of said courts, (ii) waives
any venue or inconvenient forum defense to any proceeding maintained in such courts, and (iii) agrees not to bring any
proceeding arising out of or relating to this Agreement or Employee’s employment by the Company in any other court.

5

9.

BENEFIT. This Agreement will be binding upon and will inure to the benefit of each of the parties hereto, and to

their respective heirs, representatives, successors and permitted assigns. Employee may not assign any of Employee’s rights or
delegate any of Employee’s duties under this Agreement.

10.

ENTIRE AGREEMENT; OTHER AGREEMENTS. This Agreement contains the entire agreement and

understanding by and between the Company and Employee with respect to the subject matter hereof, and any representations,
promises, agreements or understandings, written or oral, not herein contained will be of no force or effect; provided, however,
that Employee is also subject to the terms and conditions of (i) that certain Employee Non-Competition and Non-Solicitation
Agreement by and between Employee and the Company, and (ii) that certain Employee Confidentiality and Inventions
Agreement by and between Employee and the Company, each of which remains in full force and effect.

11.

CAPTIONS; RULE OF CONSTRUCTION. The captions in this Agreement are for convenience only and in no

way define, bind or describe the scope or intent of this Agreement. The terms and provisions of this Agreement will not be
construed against the drafter or drafters hereof. All parties hereto agree that the language of this Agreement will be construed as a
whole according to its fair meaning and not strictly for or against any of the parties hereto.

12.

COUNTERPARTS. This Agreement may be executed in one or more counterparts, each of which will be deemed

an original but all of which together will constitute one and the same agreement. Facsimile or PDF reproductions of original
signatures will be deemed binding for the purpose of the execution of this Agreement.

13.

SEVERABILITY. Each provision of this Agreement is severable from every other provision of this Agreement.

Any provision of this Agreement that is determined by any court of competent jurisdiction to be invalid or unenforceable will not
affect the validity or enforceability of any other provision. Any provision of this Agreement held invalid or unenforceable only in
part or degree will remain in full force and effect to the extent not held invalid or unenforceable.

14.
any reason.

SURVIVAL. The terms of Sections 4 through 14 will survive the termination or expiration of this Agreement for

[Signature Page Follows.]

6

    [Signature Page to Employment Agreement]

IN WITNESS WHEREOF, the parties have executed this Agreement effective as of the Effective Date.

G1 THERAPEUTICS, INC.

By: /s/ John E. Bailey, Jr.        
Name: John E. Bailey, Jr.
Title: Chief Executive Officer

EMPLOYEE:

/s/ John W. Umstead V        
John W. Umstead V

7

 
Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-265832, 333-254705, 333-236229, 333-232106,
333-226701, and 333-218468) and Form S-3 (Nos. 333-257640 and 333-225678) of G1 Therapeutics, Inc. of our report dated March 1, 2023 relating to the
financial statements, which appear in this Form 10-K.

Raleigh, North Carolina
March 1, 2023

 
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

Exhibit 31.1

I, John E. Bailey, Jr., certify that:

1.    I have reviewed this Annual Report on Form 10-K of G1 Therapeutics, Inc.;

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the

statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this
report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the

financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.    The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in

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

(a)    designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision,

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

(b)    designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our

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

(c)    evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the

effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)    disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most

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

5.    The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the

registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

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

(b)    any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal

control over financial reporting.     

        
Date: March 1, 2023

By:

/s/ John E. Bailey, Jr.
John E. Bailey, Jr.

President and Chief Executive Officer

(Principal Executive Officer)

 
 
 
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

Exhibit 31.2

I, Jennifer K. Moses, certify that:

1.    I have reviewed this Annual Report on Form 10-K of G1 Therapeutics, Inc.;

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the

statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this
report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the

financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.    The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in

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

(a)    designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision,

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

(b)    designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our

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

(c)    evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the

effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)    disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most

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

5.    The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the

registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

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

(b)    any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal

control over financial reporting.    

        
Date: March 1, 2023

By:

/s/ Jennifer K. Moses
Jennifer K. Moses

Chief Financial Officer

(Principal Financial and Accounting Officer)

 
 
 
Exhibit 32.1

CERTIFICATION UNDER SECTION 906

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, 2022 (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: March 1, 2023

/s/ John E. Bailey, Jr.

John E. Bailey, Jr.

President and Chief Executive Officer

(Principal Executive Officer)

Exhibit 32.2

CERTIFICATION UNDER SECTION 906

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, 2022 (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: March 1, 2023

/s/ Jennifer K. Moses

Jennifer K. Moses

Chief Financial Officer

(Principal Financial and Accounting Officer)