This Quarterly Report on Form 10-Q contains "forward-looking statements" as
defined in Section 27A of the Securities Act of 1933, as amended, and
Section 21E of the Securities Exchange Act of 1934, as amended, in connection
with the Private Securities Litigation Reform Act of 1995 that involve risks and
uncertainties, as well as assumptions that, if they never materialize or prove
incorrect, could cause our results to differ materially and adversely from those
expressed or implied by such forward-looking statements. Such forward-looking
statements include estimates of our expenses, future revenue, capital
requirements and our needs for additional financing; statements regarding our
ability to develop, acquire and advance drug candidates into, and successfully
complete, clinical trials and preclinical studies; statements concerning new
product candidates; risks and uncertainties associated with our research and
development activities, including our clinical trials and preclinical studies;
our expectations regarding the potential market size and the size of the patient
populations for our drug candidates, if approved for commercial use, and our
ability to serve such markets; statements regarding our ability to maintain and
establish collaborations or obtain additional funding; statements regarding
developments and projections relating to our competitors and our industry and
other matters that do not relate strictly to historical facts or statements of
assumptions underlying any of the foregoing. These statements are often
identified by the use of words such as "anticipate," "believe," "continue,"
"could," "estimate," "expect," "intend," "may" or "will," the negative versions
of these terms and similar expressions or variations. These statements are based
on the beliefs and assumptions of our management based on information currently
available to management. Such forward-looking statements are subject to risks,
uncertainties and other factors that could cause actual results and the timing
of certain events to differ materially and adversely from future results
expressed or implied by such forward-looking statements. Factors that could
cause or contribute to such differences include, but are not limited to, those
identified below, and those discussed in the section titled "Risk Factors"
included elsewhere in this Quarterly Report on Form 10-Q and in our other
Securities and Exchange Commission, or SEC, filings. Furthermore, such
forward-looking statements speak only as of the date of this Quarterly Report on
Form 10-Q. We undertake no obligation to update any forward-looking statements
to reflect events or circumstances occurring after the date of such statements.

Overview



We are a clinical-stage biopharmaceutical company focused on the development of
novel, first-in-class or best-in-class therapies for metabolic and endocrine
disorders.

Our lead clinical program's drug candidate, VK2809, is an orally available, tissue and receptor-subtype selective agonist of the thyroid hormone receptor beta, or TRß. In November 2019, we initiated the VOYAGE study, a Phase 2b clinical trial of VK2809 in patients with biopsy-confirmed non-alcoholic steatohepatitis, or NASH.



The VOYAGE study is a randomized, double-blind, placebo-controlled, multicenter
trial designed to assess the efficacy, safety and tolerability of VK2809 in
patients with biopsy-confirmed NASH and fibrosis ranging from stages F1 to F3.
The study is targeting enrollment of approximately 340 patients across five
treatment arms. The primary endpoint of the study will evaluate the relative
change in liver fat content, as assessed by magnetic resonance imaging, proton
density fat fraction (MRI-PDFF), from baseline to week 12 in subjects treated
with VK2809 as compared to placebo. Secondary objectives include evaluation of
histologic changes assessed by hepatic biopsy after 52 weeks of dosing.

VK2809 has been evaluated in eight completed clinical studies, which enrolled
more than 300 subjects. No serious adverse events, or SAEs, have been observed
in subjects receiving VK2809 in these completed studies, and overall
tolerability remains encouraging. In addition, the compound has been evaluated
in chronic toxicity studies of up to 12 months in duration.

We are also developing VK0214, which is also an orally available, tissue and
receptor-subtype selective agonist of TRß for X-linked adrenoleukodystrophy, or
X-ALD, a rare X-linked, inherited neurological disorder characterized by a
breakdown in the protective barriers surrounding brain and nerve cells. The
disease, for which there is no approved treatment, is caused by mutations in a
peroxisomal transporter of very long chain fatty acids, or VLCFA, known as
ABCD1. As a result, transporter function is impaired and patients are unable to
efficiently metabolize VLCFA. The TRß receptor is known to regulate expression
of an alternative VLCFA transporter, known as ABCD2. Various preclinical models
have demonstrated that increased expression of ABCD2 can lead to normalization
of VLCFA metabolism. Preliminary data suggest that VK0214 stimulates ABCD2
expression in an in vitro model and reduces VLCFA levels in an in vivo model of
X-ALD.

In September 2020, we initiated a randomized, double-blind, placebo-controlled
Phase 1 single ascending dose, or SAD, and multiple ascending dose, or MAD,
clinical trial of VK0214 in healthy patients. The primary objective of the study
is to evaluate the safety and tolerability of VK0214 administered orally for up
to 14 days.  The secondary objective is to evaluate the pharmacokinetics of
VK0214 following single and multiple oral doses.  In June 2021, we announced the
results of the study. The first portion of the study evaluated single doses of
VK0214; in the second portion of the study, subjects received VK0214 once daily
for 14 days.  Subsequent cohorts in both portions of the study received
successively higher VK0214 doses.

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VK0214 was shown to be safe and well-tolerated at all doses evaluated in this
study.  No serious adverse events were reported, and no treatment or
dose-related trends were observed for vital signs, gastrointestinal effects,
cardiovascular measures or physical examinations.  VK0214 demonstrated
dose-dependent exposures, no evidence of accumulation following multiple doses,
and a half-life consistent with anticipated once-daily dosing regimens.

While the study's primary objective was to evaluate safety and tolerability,
laboratory assessments included a lipid panel to determine potential
pharmacodynamic effects following exposure to VK0214.  The results showed that
subjects who received VK0214 experienced reductions in low-density lipoprotein
cholesterol, or LDL-C, triglycerides and apolipoprotein B following 14 days of
treatment at all VK0214 doses.  Many of the observed lipid reductions achieved
statistical significance, though the study was not powered to demonstrate
statistical significance on laboratory assessments.

        % Change in Lipid Markers Following 14 Days of Treatment of VK0214

              Placebo1    5 mg     10 mg     25 mg     50 mg     75 mg    100 mg
               (n=11)    (n=6)     (n=6)     (n=6)     (n=6)     (n=6)     (n=6)

    LDL-C       3.8%     -0.7%    -12.5%*  -21.4%**  -19.5%**  -19.1%*** -18.9%**

Triglycerides   4.9%     -6.7%    -19.5%*    -1.7%   -36.8%**  -45.0%*** -39.1%**

    ApoB        4.4%     -5.7%    -12.5%** -23.3%*** -24.0%*** -28.3%*** -28.2%***
(1) Excludes one placebo subject due to an anomalous triglyceride value (>7x
higher than SD). *p < 0.05; **p < 0.01; ***p < 0.001.


In June 2021, we initiated a Phase 1b clinical trial of VK0214 in patients with
X-ALD.  The Phase 1b trial is a multi-center, randomized, double-blind,
placebo-controlled study in adult male patients with the adrenomyeloneuropathy,
or AMN, form of X-ALD.  The study is initially targeting enrollment across three
cohorts: placebo, VK0214 20 mg daily, and VK0214 40 mg daily.  Pending a blinded
review of preliminary safety, tolerability, and pharmacokinetic data, additional
dosing cohorts may be pursued.

The primary objectives of the study are to evaluate the safety and tolerability
of VK0214 administered once-daily over a 28-day dosing period, and to assess the
efficacy of VK0214 at lowering plasma levels of VLCFAs in patients with AMN.
Secondary objectives include an evaluation of the pharmacokinetics and
pharmacodynamics of VK0214 following 28 days of dosing in this population.

Other clinical programs include VK5211, an orally available, non-steroidal
selective androgen receptor modulator, or SARM. In November 2017, we announced
positive top-line results from a Phase 2 proof-of-concept clinical trial in 108
patients recovering from non-elective hip fracture surgery. Top-line data showed
that the trial achieved its primary endpoint, demonstrating statistically
significant, dose dependent increases in lean body mass, less head, following
treatment with VK5211 as compared to placebo. The study also achieved certain
secondary endpoints, demonstrating statistically significant increases in
appendicular lean body mass and total lean body mass for all doses of VK5211,
compared to placebo. VK5211 demonstrated encouraging safety and tolerability in
this study, with no drug-related SAEs reported. Our intent is to continue to
pursue partnering or licensing opportunities prior to conducting additional
clinical studies.

We were incorporated under the laws of the State of Delaware on September 24,
2012. Since our incorporation, we have devoted most of our efforts towards
conducting certain clinical trials and preclinical studies related to our
VK2809, VK0214 and VK5211 programs, as well as efforts towards raising capital
and building infrastructure. We obtained exclusive worldwide rights to our
VK2809, VK0214 and VK5211 programs and certain other assets pursuant to an
exclusive license agreement with Ligand Pharmaceuticals Incorporated, or Ligand.
The terms of this license agreement are detailed in the Master License Agreement
with Ligand, which we entered into on May 21, 2014, as amended, or the Master
License Agreement. A summary of the Master License Agreement can be found under
the heading "Agreements with Ligand-Master License Agreement" under Part I,
"Item 1. Business" of our Annual Report on Form 10-K filed with the SEC on
February 17, 2021.

We are subject to risks and uncertainties as a result of the COVID-19 pandemic.
The extent of the impact of the COVID-19 pandemic on our business is highly
uncertain and difficult to predict, as the responses that we, other businesses
and governments are taking continue to evolve. Furthermore, capital markets and
economies worldwide have also been negatively impacted by the COVID-19 pandemic,
and it is possible that it could cause a local and/or global economic slowdown
or recession. Policymakers around the globe have responded with fiscal policy
actions to support the healthcare industry and economy as a whole. The magnitude
and overall effectiveness of these actions remain uncertain.

In addition, our clinical trials have been affected by and may continue to be
affected by the COVID-19 pandemic. Clinical site initiation and patient
enrollment have been, and may continue to be delayed due to prioritization of
hospital resources toward the COVID-19 pandemic. Some patients have not been
able and others may not be able to comply with clinical trial protocols if
quarantines impede patient movement or interrupt healthcare services. Similarly,
any inability to recruit and retain patients and

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principal investigators and site staff who, as healthcare providers, may have heightened exposure to COVID-19, may adversely impact our clinical trial operations.



The severity of the impact of the COVID-19 pandemic on our business will depend
on a number of factors, including, but not limited to, the duration and severity
of the pandemic and the extent and severity of the impact on our service
providers, suppliers, contract research organizations, or CROs, and our clinical
trials, all of which are uncertain and cannot be predicted, as well as the
timing, rollout and availability of vaccines and the effectiveness thereof, and
the willingness of the general population to be vaccinated. As of the date of
issuance of our financial statements, the extent to which the COVID-19 pandemic
may materially impact our financial condition, liquidity or results of
operations is still uncertain.

Financial Operations Overview

Revenues

To date, we have not generated any revenue. We do not expect to receive any revenue from any drug candidates that we develop unless and until we obtain regulatory approval for, and commercialize, our drug candidates or enter into collaborative agreements with third parties.

Research and Development Expenses



During the year ended December 31, 2020, we charged $31.9 million to research
and development expense primarily related to our efforts in continuing to
conduct the VK2809 Phase 2b VOYAGE clinical trial as well as preparing for and
initiating the VK0214 Phase 1 SAD and MAD study in healthy patients. During the
six months ended June 30, 2021, we charged $24.3 million to research and
development expense primarily related to our efforts in continuing to conduct
the VK2809 Phase 2b VOYAGE clinical trial and completing our VK0214 Phase 1 SAD
and MAD clinical trial in healthy patients as well as preparing for and
initiating our Phase 1b clinical trial of VK0214 in patients with X-ALD.  We
expect that our ongoing research and development expenses will consist of costs
incurred for the development of our drug candidates, including, but not limited
to:






• employee- and consultant-related expenses, which will include salaries,


        benefits and stock-based compensation, and certain consultant fees and
        travel expenses;




    •   expenses incurred under agreements with investigative sites and CROs,
        which will conduct a substantial portion of our research and
        development activities, including studies in NASH and X-ALD, on our
        behalf;



• payments to third-party manufacturers, which will produce our active


        pharmaceutical ingredients and finished drug products;



• license fees paid to third parties for use of their intellectual property;


        and




    •   facilities, depreciation and other allocated expenses, which will
        include direct and allocated expenses for rent and maintenance of
        facilities and equipment, depreciation of leasehold improvements,
        equipment and laboratory and other supplies.



We expense all research and development costs as incurred.





The process of conducting the necessary clinical research to obtain regulatory
approval is costly and time-consuming and the successful development of our drug
candidates is highly uncertain. Our future research and development expenses
will depend on the clinical success of each of our drug candidates, as well as
ongoing assessments of the commercial potential of such drug candidates. In
addition, we cannot forecast with any degree of certainty which drug candidates
may be subject to future collaborations, when such arrangements will be secured,
if at all, and to what degree such arrangements would affect our development
plans and capital requirements. We expect to incur increased research and
development expenses in the future as we continue our efforts towards advancing
our VK2809 and VK0214 programs and seek to advance our additional programs.



General and Administrative Expenses





Our general and administrative expenses have generally increased year-over-year
as we have hired additional employees, issued additional equity awards, which
has resulted in increased stock-based compensation expense, implemented certain
systems to increase efficiency, and incurred additional costs for insurance,
legal and accounting related to operating as a public company. We expect that
our general and administrative expenses will continue to increase in the future
in order to support our expected increase in research and development
activities, including increased salaries and other related costs, stock-based
compensation and consulting fees for executive, finance, accounting and business
development functions. We also expect general and administrative expenses to
increase as a result of additional costs associated with being a public company,
including expenses related to compliance with the rules and

                                       22

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regulations of the SEC and The Nasdaq Stock Market LLC, additional insurance
expenses, investor relations activities and other administration and
professional services. Other significant costs are expected to include legal
fees relating to patent and corporate matters, facility costs not otherwise
included in research and development expenses, and fees for accounting and other
consulting services.



Other Income (Expense)


Other income (expense) includes interest income earned from our cash, cash equivalents and short-term investments.

Smaller Reporting Company and Non-Accelerated Filer





Until December 31, 2020, we were deemed an "emerging growth company" within the
meaning of the rules under the Securities Act, and we utilized certain
exemptions from various reporting requirements that were applicable to public
companies that were not emerging growth companies. For example, as an emerging
growth company, we were not required to provide an auditor's attestation report
on our internal control over financial reporting in our annual reports on Form
10-K as otherwise required by Section 404(b) of the Sarbanes-Oxley Act of 2002,
as amended. Effective December 31, 2020, we are no longer an emerging growth
company as December 31, 2020 was the last day of the fiscal year following the
fifth anniversary of the completion of our initial public offering. In March
2020, the SEC released final rules amending the definitions for accelerated and
large accelerated filers. In addition, these final rules also exclude from these
definitions of accelerated and large accelerated filers an issuer that is
eligible to be a smaller reporting company and non-accelerated filer. As our
public float on June 30, 2020 was less than $700 million and our annual revenues
were less than $100 million, we have been deemed a smaller reporting company and
a non-accelerated filer since January 1, 2021. As a non-accelerated filer and in
accordance with these new rules, we are not required to provide an auditor's
attestation report on our internal control over financial reporting in our
annual reports on Form 10-K as otherwise required by Section 404(b) of the
Sarbanes-Oxley Act of 2002, as amended. In addition, as a smaller reporting
company, we have the ability to take advantage of several "scaled disclosure"
accommodations in accordance with the smaller reporting company rules. We
reassessed our public float as of June 30, 2021, and since it was less than $700
million and our annual revenues are less than $100 million, we have determined
that we will continue as a smaller reporting company and a non-accelerated filer
until at least December 31, 2022. We will need to reassess, as of June 30, 2022,
whether we continue to qualify as a smaller reporting company and a
non-accelerated filer for filings beyond the fiscal year ending December 31,
2022.

Critical Accounting Policies and Estimates



Our management's discussion and analysis of financial condition and results of
operations is based on our financial statements, which have been prepared in
accordance with accounting principles generally accepted in the United States.
The preparation of these 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 revenues and expenses during the reporting
periods. On an ongoing basis, we evaluate our estimates and judgments related to
the preclinical, nonclinical and clinical development costs and drug
manufacturing costs. We base our estimates on 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.

Our significant accounting policies are more fully described in Note 1 and Note 3 to our financial statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q.

Results of Operations

Comparison of the Three Months Ended June 30, 2021 and 2020

Research and Development Expenses

The following table summarizes our research and development expenses for the three months ended June 30, 2021 and 2020 (in thousands, except % change).





                                                                             $           %
                                       Three Months Ended June 30,        Change      Change
                                         2021                2020

Research and development expenses $ 12,804 $ 7,780 $ 5,024 64.6 %






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The increase in research and development expenses during the three months ended June 30, 2021 as compared to the same period in 2020 was primarily due to increased expenses related to our clinical studies of $3.0 million and pre-clinical studies of $2.7 million, partially offset by a decrease in manufacturing for our drug candidates of $370,000, salaries and benefits of $228,000 and stock-based compensation of $57,000.

General and Administrative Expenses

The following table summarizes our general and administrative expenses for the three months ended June 30, 2021 and 2020 (in thousands, except % change).



                                                                                     $              %
                                              Three Months Ended June 30,          Change         Change
                                               2021                2020

General and administrative expenses $ 2,737 $ 2,826 $ (89 ) (3.1 )%






The decrease in general and administrative expenses during the three months
ended June 30, 2021 as compared to the same period in 2020 was primarily due to
decreased expenses related to salaries and benefits of $131,000 and stock-based
compensation of $100,000, partially offset by increased expenses related to
third-party consultants of $52,000, professional fees of $48,000 and insurance
of $42,000.



Other income (expense)

The following table summarizes our other income (expense) for the three months ended June 30, 2021 and 2020 (in thousands, except % change).





                                                                     $           %
                             Three Months Ended June 30,          Change      Change
                            2021                   2020
Other income (expense)   $       160         $          1,034     $  (874 )     (84.5 )%




Other income (expense) recognized during the three months ended June 30, 2021
consisted primarily of interest income of $181,000, partially offset by $21,000
of expense relating to the amortization of certain financing costs. Other income
(expense) recognized during the three months ended June 30, 2020 consisted
primarily of interest income of $1.0 million, partially offset by $20,000 of
expense relating to the amortization of certain financing costs.



Comparison of the Six Months Ended June 30, 2021 and 2020

Research and Development Expenses

The following table summarizes our research and development expenses for the six months ended June 30, 2021 and 2020 (in thousands, except % change).



                                                                             $           %
                                        Six Months Ended June 30,         Change      Change
                                        2021                2020

Research and development expenses $ 24,340 $ 15,766 $ 8,574 54.4 %






The increase in research and development expenses during the six months ended
June 30, 2021 as compared to the same period in 2020 was primarily due to
increased expenses related to our clinical studies of $6.3 million, pre-clinical
studies of $1.8 million, manufacturing for our drug candidates of $470,000 and
stock-based compensation of $58,000, partially offset by a decrease in
third-party consultants of $45,000.

General and Administrative Expenses

The following table summarizes our general and administrative expenses for the six months ended June 30, 2021 and 2020 (in thousands, except % change).



                                                                                   $              %
                                              Six Months Ended June 30,          Change         Change
                                               2021               2020

General and administrative expenses $ 5,430 $ 5,787

   $     (357 )         (6.2 )%




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The decrease in general and administrative expenses during the six months ended
June 30, 2021 as compared to the same period in 2020 was primarily due to
decreased expenses related to stock-based compensation of $290,000, salaries and
benefits of $195,000, legal services of $73,000 and travel expenses of $13,000,
partially offset by increased expenses related to professional fees of $94,000,
insurance of $89,000 and third-party consultants of $68,000.



Other income (expense)

The following table summarizes our other income (expense) for the six months ended June 30, 2021 and 2020 (in thousands, except % change).



                                                                    $            %
                              Six Months Ended June 30,           Change      Change
                            2021                  2020
Other income (expense)   $       379         $         2,294     $ (1,915 )     (83.5 )%




Other income (expense) recognized during the six months ended June 30, 2021
consisted primarily of interest income of $420,000, partially offset by $41,000
of expenses relating to the amortization of certain financing costs. Other
income (expense) recognized during the six months ended June 30, 2020 consisted
primarily of interest income of $2.3 million, partially offset by $65,000 of
expenses relating to the amortization of certain financing costs.

Liquidity and Capital Resources



We have incurred losses and negative cash flows from operations and have not
generated any revenues since our inception. As of June 30, 2021, we had cash,
cash equivalents and short-term investments of $228.3 million. As such, we
believe our cash, cash equivalents and short-term investments will be sufficient
to fund our operations through at least September 30, 2022, which is more than
one year after the date of our filing of this Form 10-Q.

Our primary use of cash is to fund operating expenses, which to date have
consisted of the cost to obtain the license of intellectual property from
Ligand, certain research and development expenses related to furthering the
development of VK2809, VK0214 and VK5211, and general and administrative
expenses. Since we have not generated any revenues to date, we have incurred
operating losses since our inception. Cash used to fund operating expenses is
impacted by the timing of payment of these expenses, as reflected in the change
in our outstanding accounts payable and accrued expenses.

On July 11, 2018, we filed with the SEC a universal Shelf Registration Statement
on Form S-3 (File No. 333-226133), or the 2018 Shelf Registration Statement. The
2018 Shelf Registration Statement initially provided us with the ability to
offer up to $450.0 million of securities, including equity, debt and other
securities as described in the 2018 Shelf Registration Statement. The 2018 Shelf
Registration Statement was declared effective by the SEC on July 19, 2018 and
expired on July 19, 2021. Pursuant to the 2018 Shelf Registration Statement, we
could offer additional securities from time to time and through one or more
methods of distribution, subject to market conditions and our capital needs.

On August 1, 2019, we entered into an At-The-Market Equity Offering Sales
Agreement, or the ATM Agreement, with Stifel, Nicolaus & Company, Incorporated
and Oppenheimer & Co. Inc., or, together, the Agents, pursuant to which we may
offer and sell, from time to time, through or to the Agents, as sales agent or
principal, or the ATM Offering, shares of our common stock having an aggregate
offering price of up to $75.0 million, or the ATM Shares. Any ATM Shares offered
and sold in the ATM Offering were to be issued pursuant to the 2018 Shelf
Registration Statement and the 424(b) prospectus supplement relating to the ATM
Offering dated August 1, 2019. The 2018 Shelf Registration Statement expired on
July 19, 2021. No shares of our common stock were sold under the ATM Agreement
from its inception through June 30, 2021.

On March 17, 2020, our board of directors authorized a stock repurchase program,
whereby we may purchase up to $50.0 million in shares of our common stock and
outstanding warrants to purchase our common stock, over a period of up to two
years, or the Repurchase Program. The Repurchase Program may be carried out at
the discretion of a committee of our board of directors through open market
purchases, one or more Rule 10b5-1 trading plans, block trades and in privately
negotiated transactions. Through June 30, 2021, no shares of our common stock or
warrants to purchase our common stock were repurchased by us under the
Repurchase Program.

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The following table summarizes our cash flows for the periods indicated below
(in thousands):



                                                    Six Months Ended June 30,
                                                      2021               2020
Cash used in operating activities                 $     (24,310 )     $  (10,968 )
Cash provided by (used in) investing activities   $      (3,067 )     $   20,932
Cash provided by financing activities             $       7,089       $     

449

Cash Used in Operating Activities



During the six months ended June 30, 2021, cash used in operating activities of
$24.3 million primarily reflected our net losses for the period, adjusted by
non-cash charges such as stock-based compensation, amortization of investment
premiums, amortization of right of use assets, amortization of financing costs,
and interest expense related to operating lease liability as well as changes in
our working capital accounts, primarily consisting of an increase in accounts
payable, accrued expenses and accrued interest, net of interest received on
maturity of investments, partially offset by an increase in prepaid expenses and
other assets and lease liability.

During the six months ended June 30, 2020, cash used in operating activities of
$11.0 million primarily reflected our net losses for the period, adjusted by
non-cash charges such as stock-based compensation, amortization of investment
premiums, amortization of right of use assets, amortization of financing costs,
and interest expense related to operating lease liability as well as changes in
our working capital accounts, primarily consisting of an increase in prepaid
expenses, accounts payable and accrued expenses.

Cash Provided by (Used in) Investing Activities



During the six months ended June 30, 2021, cash used in investing activities of
$3.1 million resulted primarily from the purchase of investments of $108.3
million, partially offset by the proceeds of sales and maturities of investments
of $105.2 million.

During the six months ended June 30, 2020, cash provided by investing activities
of $20.9 million resulted primarily from the proceeds of sales and maturities of
investments of $159.9 million, partially offset by the purchase of investments
of $139.0 million.

Cash Provided by Financing Activities



During the six months ended June 30, 2021, cash provided by financing activities
was $7.1 million, which consisted primarily of proceeds from certain warrant
exercises of $7.1 million and proceeds from certain stock option exercises and
ESPP purchases of $498,000, partially offset by the value of shares withheld to
cover taxes of $473,000.

During the six months ended June 30, 2020, cash provided by financing activities
was $449,000, which consisted primarily of proceeds from certain warrant
exercises of $363,000 and proceeds from certain stock option exercises and ESPP
purchases of $239,000, partially offset by the value of shares withheld to cover
taxes of $127,000.

Future Funding Requirements

As of the date of this Quarterly Report on Form 10-Q and based upon our current
operating plan, we believe that we have sufficient capital to fund our operating
and capital requirements for at least the next 12 months. We anticipate,
however, that we will continue to generate losses for the foreseeable future,
and we expect the losses to increase materially as we continue the development
of, and seek regulatory approvals for, our drug candidates, and seek to
commercialize any drugs for which we receive regulatory approval. We will need
to raise additional capital to fund our operations and complete our ongoing and
planned clinical trials. Although we expect to finance future cash needs through
public or private equity or debt offerings, funding may not be available to us
on acceptable terms, or at all. If we are unable to raise additional capital in
sufficient amounts or on terms acceptable to us, we may be required to delay,
limit, reduce or terminate our drug development or future commercialization
efforts or grant rights to develop and market drug candidates that we would
otherwise prefer to develop and market ourselves.

Our future capital requirements will depend on many factors, including, but not limited to:

• the scope, rate of progress, results and costs of our clinical trials,

preclinical studies and other related activities;

• our ability to establish and maintain strategic collaborations, licensing

or other arrangements and the financial terms of such agreements;

• the timing of, and the costs involved in, obtaining regulatory approvals


        for any of our current or future drug candidates;


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• the number and characteristics of the drug candidates we seek to develop

or commercialize;

• the cost of manufacturing clinical supplies, and establishing commercial

supplies, of our drug candidates;

• the cost of commercialization activities if any of our current or future


        drug candidates are approved for sale, including marketing, sales and
        distribution costs;


  • the expenses needed to attract and retain skilled personnel;


  • the costs associated with being a public company;

• the amount of revenue, if any, received from commercial sales of our drug

candidates, should any of our drug candidates receive marketing approval;

• the impacts that the COVID-19 global pandemic may have on our business,

financial condition and results of operations, including disruptions to

our operations and clinical trials, as well as disruptions or delays with

respect to the operations of our service providers, suppliers and CROs;

and

• the costs involved in preparing, filing, prosecuting, maintaining,

defending and enforcing possible patent claims, including litigation costs

and the outcome of any such litigation.

Off-Balance Sheet Arrangements

As of June 30, 2021, we did not have any off-balance sheet arrangements as defined in Item 303(a)(4)(ii) of Regulation S-K promulgated by the SEC.

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