You should read the following discussion and analysis of our financial condition
and results of operations together with our unaudited condensed consolidated
financial statements and related notes included elsewhere in this Quarterly
Report on Form 10-Q, or Quarterly Report, and the audited financial statements
and related notes and Management's Discussion and Analysis of Financial
Condition and Results of Operations included in our Annual Report on Form 10-K
for the year ended December 31, 2021 filed with the Securities and Exchange
Commission, or SEC, on March 30, 2022, or our Annual Report. Some of the
information contained in this discussion and analysis or set forth elsewhere in
this Quarterly Report, including information with respect to our plans and
strategy for our business and related financing, includes forward-looking
statements that involve risks and uncertainties. As a result of many factors,
including those factors set forth in the "Risk Factors" section of this
Quarterly 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. You should carefully read the "Risk Factors"
section of this Quarterly Report to gain an understanding of the important
factors that could cause actual results to differ materially from our
forward-looking statements.

Overview



We are a clinical-stage biopharmaceutical company currently focused on
developing differentiated therapies for patients with gastrointestinal, or GI,
diseases. Our most advanced program, MET642, targets the farnesoid X receptor,
or FXR, which is central to modulating GI and liver diseases.

Prior to February 2022, we were developing another FXR agonist, MET409, for the
treatment of non-alcoholic steatohepatitis, or NASH, a liver disease
characterized by excess liver fat, inflammation and fibrosis. While we believe
these two compounds demonstrate potential for differentiated treatments in both
monotherapy and combination treatment for NASH, given recent clinical outcomes
of our programs relative to competing programs, reduced investor sentiment in
NASH, and the significant resources required to pursue further development in
NASH, we elected to discontinue future development of our FXR program in NASH
while prioritizing our resources and efforts toward the development of MET642
for the treatment of Ulcerative Colitis, or UC, one of the two primary types of
Inflammatory Bowel Disease, or IBD. We were also developing small molecule
inhibitors of HSD17?13 for the treatment of NASH. HSD17?13 is a genetically
validated target for advanced liver disease. In February 2022, our board of
directors approved a corporate restructuring plan, or Restructuring Plan, that
resulted in the reduction of approximately 50% of our workforce, primarily
consisting of our research organization, which consequently resulted in the
discontinued development of our hydroxysteroid dehydrogenase, or HSD, program.
The Restructuring Plan was completed in April 2022.

We have engaged MTS Health Partners to act as our strategic financial advisor.
We are evaluating and exploring a variety of strategic and financing
alternatives focused on maximizing stockholder value, including, but not limited
to, a merger, sale, or other business combination, a strategic partnership with
one or more parties, or the licensing, sale or divestiture of our programs.
Despite undertaking this process, we may not be successful in completing a
transaction, and, even if a strategic transaction is completed, it ultimately
may not deliver the anticipated benefits or enhance stockholder value.

We believe FXR plays a key role in the treatment of IBD, including UC. FXR is
highly expressed by intestinal epithelial cells and plays a key role in healthy
intestinal function by maintaining the epithelial barrier, reducing bacterial
translocation into the intestinal wall and regulating the innate immune
response. FXR-based therapies in IBD address multiple aspects of IBD
pathogenesis without the immunosuppression inherent to other advanced-line
therapies.

IBD is a significant global health issue and is thought to occur due to a
maladaptive immune response to gut microbes. UC and Crohn's disease are the two
primary types of IBD. Patients with IBD can suffer from abdominal pain and
bloody diarrhea and also be at increased risk of colorectal cancer. The global
incidence of IBD is increasing and as of 2015, it was estimated that there were
3.1 million people in the United States with IBD. Our first clinical
investigation of FXR therapy in IBD will be focused on patients with UC.

We believe an oral, once-daily therapy with FXR agonists could be an attractive
treatment option for UC patients that may prefer oral administration instead of
injectable biologics that are cumbersome to administer chronically. In
preclinical animal studies with our current and previous FXR agonist product
candidates, we have observed statistically significant improvements in colon
histology and at levels similar to that of a mouse antibody which targets
IL-12/23. The IL-12/23 pathway is the target of current approved biologic
therapies.

We have delayed clinical development efforts related to our planned Phase 2a
proof-of-concept clinical trial of MET642 in UC until the completion of our
review of strategic alternatives. The planned UC trial is currently designed as
a 12-week randomized, double blind, placebo controlled, multi-center clinical
trial evaluating the efficacy and safety of two dose levels of MET642, compared
to placebo, over 12 weeks of treatment. Eligible patients will be randomized in
a 1:1:1 ratio to receive MET642 (3 mg), MET642 (6 mg) or placebo. Each trial
drug will be given once daily by oral administration. The trial is designed to
enroll up to 165 patients in the United States and in Europe. An interim
analysis is planned once 50% of the patients have completed treatment in the
trial.

There may be changes to the design of the planned UC trial depending upon the
outcome of our review and as part of the strategic alternatives being
considered. These changes could result in further delays, significant increases
to the cost of the planned UC trial, or the discontinuation of the planned UC
trial.

To date, we have devoted substantially all of our resources to organizing and
staffing our company, business, planning, raising capital, researching,
discovering and developing our pipeline in FXR and other drug targets and
general and administrative support for these operations. We do not have any
products approved for sale and have not generated any product sales. We have
funded our

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operations primarily through the private placement of convertible preferred
stock, the issuance of long-term debt, and the sale of common stock from our
initial public offering, or IPO, and our at-the-market equity offering program,
or ATM offering program. Through June 30, 2022, we have raised gross proceeds of
approximately $124.8 million from the issuance of convertible preferred stock,
$15.0 million under our K2 Loan Agreement (as defined below) and $107.7 million
from the sale of common stock from our IPO and our ATM offering program. As of
June 30, 2022 and December 31, 2021, we had cash, cash equivalents, and
short-term investments of $55.5 million and $76.4 million, respectively.

We have incurred net losses since our inception. Our net losses were
$19.1 million and $30.4 million for the six months ended June 30, 2022 and 2021,
respectively. As of June 30, 2022, we had an accumulated deficit of
$202.1 million. Our net losses may fluctuate significantly from
quarter-to-quarter and year-to-year, depending on the timing of our clinical
trials and preclinical studies and our expenditures on other research and
development activities. We expect our expenses and operating losses will
increase as MET642 or any future product candidates advance through clinical
trials, and as we expand our clinical, regulatory, quality and manufacturing
capabilities, incur significant commercialization expenses for marketing, sales,
manufacturing and distribution, if we obtain marketing approval for MET642 or
any future product candidate, and incur additional costs associated with
operating as a public company.

We do not expect to generate any revenues from product sales unless and until we
successfully complete development and obtain regulatory approval for one or more
product candidates, which will not be for many years, if ever. Accordingly,
until such time as we can generate significant revenue from sales of MET642 or
any future product candidate, if ever, we expect to finance our operations
through a combination of equity offerings, debt financings, additional
borrowings under the K2 Loan Agreement, strategic transactions, collaborations,
and other similar arrangements. However, we may be unable to raise additional
funds or enter into such other arrangements when needed on favorable terms or at
all. Our failure to raise capital or enter into such other arrangements when
needed would have a negative impact on our financial condition and could force
us to delay, reduce or terminate our development programs or other operations,
or grant rights to develop and market product candidates that we would otherwise
prefer to develop and market ourselves.

Financial Operations Overview

Revenues

To date, we have not generated any revenues from the commercial sale of any products, and we do not expect to generate revenues from the commercial sale of any products for the foreseeable future, if ever.

Research and Development Expenses



To date, our research and development expenses have related primarily to
discovery efforts and preclinical and clinical development of our product
candidates. Research and development expenses are recognized as incurred and
payments made prior to the receipt of goods or services to be used in research
and development are capitalized until the goods or services are received.

Research and development expenses include:

• salaries, payroll taxes, employee benefits and stock-based compensation

charges for those individuals involved in research and development efforts;

• external research and development expenses incurred under agreements with

contract research organizations, or CROs, investigative sites and

consultants to conduct our preclinical, toxicology and clinical studies;

• costs related to manufacturing our product candidates for clinical trials

and preclinical studies, including fees paid to third-party manufacturers;




  • laboratory supplies;


  • costs related to compliance with regulatory requirements; and

• facilities, depreciation and other allocated expenses, which include direct

and allocated expenses for rent, maintenance of facilities, insurance,

equipment and other supplies.




The following table summarizes our research and development expenses allocated
by program for the three and six months ended June 30, 2022 and 2021 (in
thousands):


                                              Three Months Ended             Six Months Ended
                                                   June 30,                      June 30,
                                              2022           2021           2022          2021
Third-party research and development
expenses:
FXR program                                $    1,372      $   8,689     $    6,117     $  16,327
Other research programs                            48            391            234           859
Total third-party research and
development expenses                            1,420          9,080          6,351        17,186
Unallocated expenses                              889          2,288          2,638         5,039
Total research and development expenses    $    2,309      $  11,368     $  

8,989 $ 22,225

Unallocated expenses consist primarily of our internal personnel related costs, facility costs, and lab supplies.


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Our Restructuring Plan, which we implemented in February 2022 and completed in
April 2022, resulted in the reduction of approximately 50% of our workforce,
primarily consisting of our research organization, and as a result, we will not
incur research expenses for the foreseeable future. We expect our development
expenses will fluctuate in the future as we review the development plan and
timeline of our FXR program in IBD and as we evaluate strategic alternatives. We
cannot determine with certainty the timing of initiation, the duration or the
completion costs of current or future clinical trials of MET642 or any future
product candidate due to the inherently unpredictable nature of preclinical and
clinical development. Clinical and preclinical development timelines, the
probability of success and development costs can differ materially from
expectations. We will need to raise substantial additional capital in the
future. In addition, we cannot forecast whether MET642 or any future product
candidate 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.

Our development costs may vary significantly based on factors such as:


  • per patient trial costs;


  • the number and scope of preclinical studies;


  • the number of trials required for approval;


  • the number of sites included in the trials;


  • the countries in which the trials are conducted;


  • the length of time required to enroll eligible patients;


  • the number of patients that participate in the trials;


  • the number of doses that patients receive;


  • the drop-out or discontinuation rates of patients;

• potential additional safety monitoring requested by regulatory agencies;




  • the duration of patient participation in the trials and follow-up;


  • the phase of development of the product candidate;


  • the efficacy and safety profile of the product candidate; and

• the extent to which we collaborate with biopharmaceutical companies for the

development and potential commercialization of the product candidate.

General and Administrative Expenses



General and administrative expenses consist primarily of salaries and
employee-related costs, including stock-based compensation, for personnel in
executive, finance, and other administrative functions. Other significant costs
include facility-related costs, legal fees relating to intellectual property and
corporate matters, professional fees for accounting and consulting services, and
insurance. We anticipate that our general and administrative expenses will
increase in the future to support our development and other commercial
activities if MET642 or any future product candidate receives marketing
approval.

Restructuring Charges



Restructuring charges consist primarily of (i) one-time payments relating to
severance obligations and other customary employee benefits and the acceleration
of the vesting of certain equity awards in connection with the staff reduction
and (ii) third-party costs associated with the discontinuation of our HSD
program. Refer to Note 9 in our unaudited condensed consolidated financial
statements for further discussion.

Gain from Lease Termination and Asset Sale



Gain from lease termination and asset sale relates to the termination of our
Corporate Lease (as defined below) and the sale of personal property to Belharra
Therapeutics, Inc., or Belharra. Refer to Note 3 in our unaudited condensed
consolidated financial statements for further discussion.

Total Other Income (Expense)

Total other income (expense) consists primarily of interest income from our cash, cash equivalents, and short-term investments and interest expense under our K2 Loan Agreement.


                                       19
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Results of Operations

Comparison of the Three and Six Months Ended June 30, 2022 and 2021

The following table summarizes our results of operations for the three and six months ended June 30, 2022 and 2021:



                                          Three Months Ended                        Six Months Ended
                                               June 30,                                 June 30,
(In thousands)                      2022         2021         Change        2022          2021         Change
Operating expenses:
Research and development          $  2,309     $  11,368     $ (9,059 )   $   8,989     $  22,225     $ (13,236 )
General and administrative           3,412         3,992         (580 )       8,894         7,688         1,206
Restructuring charges                   44             -           44           902             -           902
Gain from lease termination and
asset sale                               -             -            -          (508 )           -          (508 )
Total operating expenses             5,765        15,360       (9,595 )      18,277        29,913       (11,636 )
Loss from operations                (5,765 )     (15,360 )      9,595       (18,277 )     (29,913 )      11,636
Other income (expense):
Interest income                         67            27           40            90            63            27
Interest expense                      (511 )        (247 )       (264 )        (925 )        (491 )        (434 )
Other expense, net                     (53 )          (5 )        (48 )         (30 )         (12 )         (18 )
Total other income (expense)          (497 )        (225 )       (272 )        (865 )        (440 )        (425 )
Net loss                          $ (6,262 )   $ (15,585 )   $  9,323     $ (19,142 )   $ (30,353 )   $  11,211


Research and Development Expenses. Research and development expenses were $2.3
million and $11.4 million for the three months ended June 30, 2022 and 2021,
respectively. The decrease in research and development expenses of $9.1 million
when comparing the three months ended June 30, 2022 and 2021 was primarily due
to decreases of $6.2 million in clinical trial expenses related to our FXR
program, $1.0 million in personnel costs, including $0.1 million in non-cash
stock-based compensation, $0.9 million in preclinical studies and toxicology
expenses, $0.3 million in third-party medicinal chemistry expenses, $0.3 million
in facilities and information technology expenses and $0.2 million in laboratory
supplies expense.

Research and development expenses were $9.0 million and $22.2 million for the
six months ended June 30, 2022 and 2021, respectively. The decrease in research
and development expenses of $13.2 million when comparing the six months ended
June 30, 2022 and 2021 was primarily due to decreases of $8.2 million in
clinical trial expenses related to our FXR program, $1.9 million in personnel
costs, including $0.5 million in non-cash stock-based compensation, $1.7 million
in preclinical studies and toxicology expenses, $0.4 million in facilities and
information technology expenses, $0.4 million in laboratory supplies expense and
$0.3 million in third-party medicinal chemistry expenses.

General and Administrative Expenses. General and administrative expenses were
$3.4 million and $4.0 million for the three months ended June 30, 2022 and 2021,
respectively. The decrease in general and administrative expenses of $0.6
million when comparing the three months ended June 30, 2022 and 2021 was
primarily due to decreases of $0.3 million in personnel costs, including $0.2
million in non-cash stock-based compensation and $0.2 million in consulting,
professional services and other public company related expenses.

General and administrative expenses were $8.9 million and $7.7 million for the
six months ended June 30, 2022 and 2021, respectively. The increase in general
and administrative expenses of $1.2 million when comparing the six months ended
June 30, 2022 and 2021 was primarily due to increases of $1.1 million in
personnel costs, including $0.7 million in non-cash stock-based compensation and
$0.1 million in facilities and information technology expenses.

Restructuring Charges. Restructuring charges were $44 thousand and none for the
three months ended June 30, 2022 and 2021, respectively, and $0.9 million and
none for the six months ended June 30, 2022 and 2021, respectively. The increase
in restructuring charges when comparing the three and six months ended June 30,
2022 and 2021 was primarily related to one-time payments of severance
obligations and other customary employee benefits made in connection with the
staff reduction resulting from the Restructuring Plan. Refer to Note 9 in our
unaudited condensed consolidated financial statements for further discussion.

Gain from Lease Termination and Asset Sale. Gain from lease termination and
asset sale was none for each of the three months ended June 30, 2022 and 2021,
and $0.5 million and none for the six months ended June 30, 2022 and 2021,
respectively. The gain from lease termination and asset sale was related to the
termination of our Corporate Lease and sale of personal property to Belharra.
Refer to Note 3 in our unaudited condensed consolidated financial statements for
further discussion.

Liquidity and Capital Resources



We have incurred net losses and negative cash flows from operations since our
inception and anticipate we will continue to incur net losses for the
foreseeable future. As of June 30, 2022 and December 31, 2021, we had cash, cash
equivalents, and short-term investments of $55.5 million and $76.4 million,
respectively.

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Cash Flows

The following table sets forth a summary of the net cash flow activity for each of the periods indicated (in thousands):



                                               Six Months Ended
                                                   June 30,
                                              2022          2021
Net cash provided by (used in):
Operating activities                        $ (21,587 )   $ (22,303 )
Investing activities                           18,024        13,852
Financing activities                                1         1,205

Net decrease in cash and cash equivalents $ (3,562 ) $ (7,246 )

Operating Activities



Net cash used in operating activities was $21.6 million and $22.3 million for
the six months ended June 30, 2022 and 2021, respectively. The net cash used in
operating activities during the six months ended June 30, 2022 was primarily due
to our net loss of $19.1 million and $5.8 million from changes in operating
assets and liabilities, adjusted for $3.3 million of non-cash charges. Non-cash
charges for the six months ended June 30, 2022 primarily consisted of $3.3
million of stock-based compensation, $0.3 million in debt amortization expense,
and $0.2 million in other non-cash charges, partially offset by a $0.5 million
gain from lease termination and asset sale related to the termination of our
Corporate Lease.

Net cash used in operating activities was $22.3 million for the six months ended
June 30, 2021 and was primarily due to our net loss of $30.4 million, adjusted
for $4.0 million of non-cash charges and $4.1 million from changes in operating
assets and liabilities. Non-cash charges for the six months ended June 30, 2021
primarily consisted of $3.1 million of stock-based compensation, $0.3 million of
amortization on our right-of-use asset, $0.3 million of amortization of
premiums/discounts on investments, and $0.3 million in other non-cash charges.

Investing Activities

Net cash provided by investing activities of $18.0 million for the six months ended June 30, 2022 was primarily due to sales and maturities of short-term investments of $30.0 million and proceeds from asset sale of $0.7 million, partially offset by purchases of short-term investments of $12.7 million.

Net cash provided by investing activities of $13.9 million for the six months ended June 30, 2021 was primarily due to sales and maturities of short-term investments of $48.5 million, partially offset by purchases of short-term investments of $34.7 million.

Financing Activities

There was an immaterial amount of cash provided by financing activities for the six months ended June 30, 2022.



Net cash provided by financing activities of $1.2 million for the six months
ended June 30, 2021 was primarily due to $1.1 million of proceeds from exercises
of common stock options and $0.1 million of proceeds from the issuance of shares
from our employee stock purchase plan.

Loan Agreement



In August 2019, we borrowed $10.0 million in the first tranche under a loan and
security agreement, or the K2 Loan Agreement, with K2 HealthVentures Equity
Trust LLC, or K2, which was subsequently amended in March 2020 and October 2021.
In October 2021, we amended the K2 Loan Agreement and thereby replaced and
superseded the $10.0 million of existing term loan tranches with new term loan
tranches that enable us to borrow up to an aggregate of $45.0 million upon the
achievement of certain milestones. We have borrowed $15.0 million under the
first tranche, or the 2021 Refinancing Term Loans, and currently have $20.0
million in term loan tranches available to us upon the achievement of certain
milestones under the terms of the K2 Loan Agreement.

Term loans under the K2 Loan Agreement bear interest at a floating annual rate
equal to the greater of (i) the prime rate used by the lender plus 4.5% and
(ii) 7.75%. The monthly payments on the 2021 Refinancing Term Loans are
interest-only until July 1, 2023, and then subsequent to the interest-only
period, the 2021 Refinancing Term Loans will be payable in equal monthly
installments of principal plus accrued and unpaid interest, through April 1,
2025, the maturity date. We are required to make final fee payments equal to
$0.5 million on September 1, 2023 and 5.75% of the aggregate original principal
amount of the 2021 Refinancing Term Loans at the maturity date. We may elect to
prepay all, but not less than all, of the 2021 Refinancing Term Loans prior to
the maturity date, subject to a prepayment fee of up to 3.0% of the then
outstanding principal balance. After repayment, no term loan amounts may be
borrowed again.

Our obligations under the K2 Loan Agreement are secured by a security interest
in substantially all of our assets, other than our intellectual property. The K2
Loan Agreement includes customary affirmative and negative covenants and also
includes standard events of default, including an event of default based on the
occurrence of a material adverse event, and a default under any agreement with a
third party resulting in a right of such third party to accelerate the maturity
of any debt in excess of $0.3 million. The negative covenants include, among
others, restrictions on us transferring collateral, incurring additional
indebtedness, engaging in mergers or acquisitions, paying cash dividends or
making other distributions, making investments, creating liens, selling assets
and

                                       21
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making any payment on subordinated debt, in each case subject to certain
exceptions. Upon the occurrence and continuance of an event of default, the
lender may declare all outstanding obligations immediately due and payable and
take such other actions as set forth in the K2 Loan Agreement. As of June 30,
2022, we were in compliance with all applicable covenants under the K2 Loan
Agreement.

Sales Agreement



On October 4, 2021, we entered into a sales agreement, or the Sales Agreement,
with SVB Leerink LLC, or SVB Leerink, to sell shares of common stock from time
to time through our ATM offering program, under which SVB Leerink will act as
our sales agent. We have no obligation to sell any shares of common stock under
the Sales Agreement and may at any time suspend solicitation and offers under
the Sales Agreement. SVB Leerink will be entitled to compensation in an amount
of up to 3.0% of the gross proceeds of any shares of common stock sold under the
Sales Agreement. A maximum of $50.0 million of shares of common stock may be
sold under the Sales Agreement. We did not sell any shares of our common stock
under the Sales Agreement during the six months ended June 30, 2022. As of June
30, 2022, we may sell up to an additional $27.3 million of shares of our common
stock under the Sales Agreement and pursuant to our ATM offering program.

Material Cash Requirements

Our material cash requirements from known contractual obligations have not changed materially since our Annual Report.



On March 11, 2022, we entered into an Agreement for Termination of Lease and
Voluntary Surrender of Premises, or Lease Termination Agreement, with ARE-SD
Region No. 30, LLC, or Landlord, to accelerate the termination of the operating
lease for our former corporate headquarters, or our Corporate Lease. Under the
terms of the Lease Termination Agreement, our Corporate Lease would terminate on
the later of March 31, 2022 and the date that Landlord notifies us that it has
executed a lease agreement with a third party for the premises. On March 31,
2022, or the Lease Termination Date, Landlord notified us that our Corporate
Lease had been terminated pursuant to the terms of the Lease Termination
Agreement. Since the Lease Termination Date, we have had no further obligations
under our Corporate Lease and have transitioned to a fully remote work
environment and no longer maintain a corporate headquarters. We believe that a
fully remote work environment will be adequate to meet our needs for the
immediate future, and that we will be able to obtain access to suitable physical
office space in the future to the extent necessary.

We believe that our existing cash, cash equivalents and short-term investments
will be sufficient to meet our material cash requirements through at least the
next twelve months based on our current operating plans. We expect to finance
our long-term cash requirements and obligations beyond the next twelve months
through a combination of existing cash and cash equivalents and equity offerings
and debt financings, as well as business combinations, collaborations and other
similar strategic alternatives. Our forecast of the period of time through which
our financial resources will be adequate to support our operations is a
forward-looking statement that involves risks and uncertainties, and actual
results could vary materially. We have based this estimate on assumptions that
may prove to be wrong or change, and we could expend our capital resources
sooner than we expect.

Our future cash requirements will depend on many factors, including:

• the scope, rate of progress and costs of our drug discovery, preclinical

development activities, laboratory testing and clinical trials for MET642 or


      any future product candidate;


  • the number and scope of clinical programs we decide to pursue;

• the extent to which we collaborate with biopharmaceutical companies for the

development and potential commercialization of MET642 or any future product

candidates;

• the scope and costs of manufacturing for MET642 or any future product

candidate and commercial manufacturing activities;

• the cost, timing and outcome of regulatory review of MET642 or any future


      product candidate;


   •  the costs of preparing, filing and prosecuting patent applications,

maintaining and enforcing our intellectual property rights and defending

intellectual property-related claims;

• the terms and timing of establishing and maintaining collaborations,


      licenses and other similar arrangements;


  • the terms and timing of any strategic transaction we may enter into;

• our efforts to enhance operational systems and our ability to attract, hire


      and retain qualified personnel, including personnel to support the
      development of MET642 or any future product candidate;


  • the costs associated with being a public company;

• the timing of any milestone and royalty payments to The Salk Institute for

Biological Studies, or other future licensors;

• the extent to which we acquire or in-license other product candidates and

technologies; and

• the cost associated with commercializing MET642 or any future product

candidate, if they receive marketing approval.




Until such time, if ever, as we can generate substantial product revenues to
support our cost structure, we expect to finance our operations through a
combination of equity offerings, debt financings, strategic transactions,
collaborations, and other similar arrangements. To the extent that we raise
additional capital through the sale of equity or convertible debt securities,
the ownership interest of our stockholders will be or could be diluted, and the
terms of these securities may include liquidation or other preferences that
adversely affect the rights of our common stockholders. Debt financing and
equity 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 collaborations, or other similar arrangements with third parties,
we may have to relinquish valuable rights to our technologies, future revenue
streams, research programs or product candidates or grant

                                       22
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licenses on terms that may not be favorable to us and/or may reduce the value of
our common stock. If we are unable to raise additional sufficient capital when
needed, we may be required to:

• delay, reduce or eliminate our development programs or other operations;

• enter into strategic transactions or grant rights to develop and market

product candidates that we would otherwise prefer to develop and market


      ourselves, or on terms that are less favorable than might otherwise be
      available;

• dispose of technology assets, or relinquish or license on unfavorable terms,


      our rights to technologies or any future product candidates that we
      otherwise would seek to develop or commercialize ourselves;

• pursue the sale of our company to a third party at a price that may result


      in a loss on investment for our stockholders; or


  • file for bankruptcy or cease operations altogether.

Any of these events could have a material adverse effect on our business, operating results and prospects.

Critical Accounting Estimates



Our management's discussion and analysis of our financial condition and results
of operations are based on our unaudited condensed consolidated financial
statements, which have been prepared in accordance with U.S. generally accepted
accounting principles. The preparation of these unaudited condensed consolidated
financial statements requires us to make estimates and judgments that affect the
reported amounts of assets, liabilities, and expenses and the disclosure of
contingent assets and liabilities in our unaudited condensed consolidated
financial statements. On an ongoing basis, we evaluate our estimates and
judgments, including those related to accrued expenses and stock-based
compensation. We base our estimates on historical experience, known trends and
events, and various other factors that are believed to be reasonable under the
circumstances, the results of which form the basis for making judgments about
the carrying values of assets and liabilities that are not readily apparent from
other sources. Actual results may differ from these estimates under different
assumptions or conditions.

While our significant accounting policies are described in more detail in Note 1
to our unaudited condensed consolidated financial statements appearing elsewhere
in this Quarterly Report, we believe the following accounting policies and
estimates to be most critical to the preparation of our unaudited condensed
consolidated financial statements.

Accrued Expenses



We make estimates of our accrued research and development expenses for services
performed by our vendors in connection with research and development activities
for which we have not yet been invoiced. This process involves reviewing open
contracts and purchase orders, communicating with our personnel to identify
services that have been performed on our behalf and estimating the level of
service performed and the associated cost incurred for the service when we have
not yet been invoiced or otherwise notified of the actual cost.

We make estimates of our accrued expenses as of each balance sheet date based on
facts and circumstances known to us at that time. We periodically confirm the
accuracy of our estimates with the service providers and make adjustments if
necessary. The significant estimates in our accrued research and development
expenses include the costs incurred for services performed by our vendors in
connection with research and development activities for which we have not yet
been invoiced.

We base our expenses related to research and development activities on our
estimates of the services received and efforts expended pursuant to quotes and
contracts with vendors that conduct research and development on our behalf. The
financial terms of these agreements are subject to negotiation, vary from
contract to contract and may result in uneven payment flows. There may be
instances in which payments made to our vendors will exceed the level of
services provided and result in a prepayment of the research and development
expense. In accruing service fees, we estimate the time period over which
services will be performed and the level of effort to be expended in each
period. If the actual timing of the performance of services or the level of
effort varies from our estimate, we adjust the accrual or prepaid expense
accordingly. Advance payments for goods and services that will be used in future
research and development activities are expensed when the activity has been
performed or when the goods have been received rather than when the payment is
made.

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

Stock-Based Compensation Expense



Stock-based compensation expense represents the cost of the grant date fair
value of equity awards recognized over the requisite service period of the
awards (usually the vesting period) on a straight-line basis. We estimate the
fair value of all stock option grants using the Black-Scholes option pricing
model and recognize forfeitures as they occur. Estimating the fair value of
equity awards as of the grant date using valuation models, such as the
Black-Scholes option pricing model, is affected by assumptions regarding a
number of variables, including the fair value of the underlying common stock on
the date of grant, the risk-free interest rate, the expected stock price
volatility, the expected term of stock options, and the expected dividend yield.
Changes in the assumptions can materially affect the fair value and ultimately
how much stock-based compensation expense is recognized. These inputs are
subjective and generally require significant analysis and judgment to develop.
See Note 7 to our unaudited condensed consolidated financial statements included
elsewhere in this Quarterly Report for information concerning certain of the
specific assumptions we used in

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applying the Black-Scholes option pricing model to determine the estimated fair
value of our stock options granted the three and six months ended June 30, 2022
and 2021.

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