You should read the following discussion and analysis of our financial condition
and results of operations together with the unaudited condensed financial
statements and the notes thereto included elsewhere in this Quarterly Report on
Form 10-Q for the quarter ended March 31, 2023 and with our audited financial
statements and notes thereto contained in our Annual Report on Form 10-K for the
year ended December 31, 2022 filed with the Securities and Exchange Commission
(SEC) on March 14, 2023 (2022 Form 10-K) and other filings we have made with the
SEC. As discussed under the heading "Cautionary Note Regarding Forward-Looking
Statements," this discussion contains forward-looking statements that reflect
our plans, estimates and beliefs and involve numerous risks and uncertainties,
including but not limited to those described in Part II, Item 1A, "Risk Factors"
of this Quarterly Report on Form 10-Q. Actual results may differ materially from
those described in or implied by any forward-looking statements.


Overview



We are a biopharmaceutical company that has been focused on discovering,
developing and commercializing novel oral anti-viral therapeutics to improve the
lives of patients suffering from life-threatening disease, with our first
indication being COVID-19, which is the disease caused by infection with the
severe acute respiratory syndrome coronavirus (SARS-CoV-2).

In early April 2023, we announced topline results from our Phase 2 clinical
trial to evaluate pomotrelvir (formerly known as PBI-0451) for the treatment of
mild-to-moderate COVID-19 in test-positive, symptomatic, otherwise healthy,
vaccinated adults without risk factors for developing severe disease. Based upon
the topline results from the Phase 2 clinical trial, we decided to suspend
further clinical development of pomotrelvir, winddown our research and
development activities and initiate a review of a range of strategic
alternatives that may include, but are not limited to, an acquisition, merger,
business combination, or other transaction (the Restructuring Plan). There can
be no assurance that this review process will result in us pursuing a
transaction or that any transaction, if pursued, will be completed on attractive
terms or at all. We do not intend to comment further unless or until our Board
of Directors (the Board) has approved a definitive course of action, the review
process is concluded, or it is determined that other disclosure is appropriate.

In connection with the Restructuring Plan, in March 2023, the Board approved a
reduction in workforce (the RIF) to align operations with the changes in our
corporate strategy and to reduce operating expenses. On April 3, 2023, we
notified our employees about the results of the Phase 2 clinical trial, the
Restructuring Plan and the RIF. Under the RIF, we are reducing headcount by
approximately 89% through a reduction in our workforce, all of which is
anticipated to occur in the second quarter of 2023. As of April 30, 2023, the
workforce was reduced by 55%.

As of April 30, 2023, our preliminary cash, cash equivalents and short-term
investments totaled approximately $168.2 million. The results for the
quarter-to-date period are preliminary and are not necessarily indicative of the
results that may be expected for the full quarter ending June 30, 2023 or any
other period. In addition, during the course of the preparation of our results
for the three months ending June 30, 2023, additional adjustments to this
preliminary estimated information may be identified. Any such adjustments may be
material. Therefore, actual financial results that will be reflected in our
Quarterly Report on Form 10-Q for the three months ended June 30, 2023 when they
are completed and publicly disclosed may differ from the preliminary results
presented here.

Pomotrelvir

In September 2022, we initiated a Phase 2 double-blind, randomized study
evaluating the antiviral activity, safety, and clinical efficacy of pomotrelvir
compared with placebo in nonhospitalized, symptomatic, otherwise healthy adults
with mild-to-moderate COVID-19 and a confirmed positive SARS-CoV-2 test.
Participants were dosed orally twice-daily at 700 mg (2 x 350 mg tablets) with
food for five days.

In April 2023, we reported that pomotrelvir did not achieve the primary endpoint
as measured by the proportion of participants below the limit of detection for
infectious SARS-CoV-2 by infectious virus assay (IVA) on day three of treatment
with pomotrelvir versus with placebo. Pomotrelvir did not demonstrate meaningful
improvement over placebo in reduction from baseline of SARS-CoV-2 infectious
virus titer by IVA or in the reduction from baseline or proportion achieving
undetectable viral load by quantitative reverse transcriptase polymerase chain
reaction measured from mid-turbinate swabs.

The median time to alleviation of the 14 U.S. Food and Drug Administration
guidance-defined and 12 (excluding loss of taste and smell) targeted COVID-19
symptoms were eight days and seven days, respectively, in both pomotrelvir and
placebo treated participants. The median time to alleviation of five key
COVID-19 symptoms (cough, stuffy or runny nose, low energy or tiredness, sore
throat, and feeling hot or feverish) was six days in both pomotrelvir and
placebo treated participants with median times to resolution of each individual
key symptom being two to five days and similar for pomotrelvir- and
placebo-treated participants.

There were no deaths and no participants experienced progression to severe
COVID-19. There were no treatment emergent drug-related serious adverse events
and no drug-related adverse events leading to study drug or study
discontinuation in either treatment arm. Pomotrelvir was well tolerated, with
drug-related nausea occurring in 3.1% of participants, which represented the
only adverse event occurring in greater than 2% of pomotrelvir-treated
participants.
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Based upon the topline data indicating difficulty in demonstrating a clinically
meaningful benefit of treatment of SARS-CoV-2 infection in otherwise healthy
nonhospitalized participants with COVID-19, we decided to suspend further
development of pomotrelvir and winddown research and development activities.

Impact of Macroeconomic Conditions
Uncertainty in the global economy presents significant risks to our business. We
are subject to continuing risks and uncertainties in connection with the current
macroeconomic environment, including as a result of increases in inflation,
rising interest rates and instability in the global banking system and
geopolitical factors, including the ongoing conflict between Russia and Ukraine
and the responses thereto, and the effects of the COVID-19 pandemic. While we
are closely monitoring the impact of the current macroeconomic conditions on all
aspects of our business, the ultimate extent of the impact on our business
remains highly uncertain and will depend on future developments and factors that
continue to evolve. Most of these developments and factors are outside of our
control and could exist for an extended period of time. As a result, we are
subject to continuing risks and uncertainties and continue to closely monitor
the impact of the current conditions on our business. For additional
information, see the sections titled "Risk Factors" in the 2022 Form 10-K and in
this Quarterly Report on Form 10-Q.

Components of Our Results of Operations

Revenue



We have not generated any revenue since inception and do not expect to generate
any revenue in the near term, if ever. We are not currently developing any
product candidates and we do not have any products approved for sale. If we
decide to pursue any future product development efforts, we will not generate
revenue from product sales unless and until we successfully complete clinical
development and obtain regulatory approval for any future product candidate. In
addition, if we obtain regulatory approval for any product candidate and to the
extent that we engage in commercialization activities on our own, we expect we
will incur significant expenses related to developing our commercialization
capability to support product sales, marketing, manufacturing, and distribution
activities.

Operating Expenses

Research and Development Expenses

Research and development expenses consist primarily of costs incurred for research activities, including drug discovery efforts and the development of our potential product candidates. We expense research and development costs as incurred, which include:

expenses incurred to conduct the necessary preclinical studies, nonclinical studies and clinical trials required to obtain regulatory approval;


expenses incurred under agreements with contract research organizations (CROs)
that are primarily engaged in the oversight and conduct of our drug discovery
efforts and preclinical studies, clinical trials and contract manufacturing
organizations (CMOs) that are primarily engaged to provide preclinical and
clinical drug substance and product for our research and development programs;


other costs related to acquiring and manufacturing materials in connection with
our drug discovery efforts and preclinical studies and clinical trial materials,
including manufacturing validation batches, as well as investigative site and
consultants that conduct our clinical trials, preclinical studies and other
scientific development services;

employee-related expenses, including salaries and benefits, travel and stock-based compensation expense for employees engaged in research and development functions; and

costs related to compliance with regulatory requirements.



We recognize research and development expenses as incurred. Any advance payments
that we make for goods or services to be received in the future for use in
research and development activities are recorded as prepaid expenses. Such
amounts are expensed as the related goods are delivered or the related services
are performed, or until it is no longer expected that the goods will be
delivered or the services rendered. We estimate and accrue for the value of
goods and services received from CROs, CMOs and other third parties each
reporting period based on an evaluation of the progress to completion of
specific tasks. This process involves reviewing open contracts and purchase
orders, communicating with our personnel and service providers to identify
services that have been performed on our behalf and estimating the level of
service performed and the associated cost incurred for the service when we have
not yet been invoiced or otherwise notified of actual costs.
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We do not allocate employee costs and overhead costs associated to specific
programs because these costs are deployed across multiple programs and, as such,
are not separately classified. We use internal resources to manage our research
and discovery as well as our preclinical, nonclinical, manufacturing and
clinical development activities. To date, substantially all of the research and
development costs incurred have been in connection with the development of our
lead product candidate, pomotrelvir.

Research and development activities are central to our business model. Product candidates in later stages of clinical development generally have higher development costs than those in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials.

General and Administrative Expenses



General and administrative expenses consist primarily of employee-related
expenses, including salaries and related benefits, travel and stock-based
compensation for personnel in executive, business development, finance, human
resources, legal, information technology and administrative functions. General
and administrative expenses also include insurance costs and professional fees
for legal, patent, consulting, investor and public relations, pre-commercial
planning, accounting and audit services. Our general and administrative costs
are expensed as incurred.

Income Taxes

We have incurred net losses in every period since our inception and have not
recorded any U.S. federal or state income tax benefits for the losses, as they
have been offset by valuation allowances.

Interest and Other Income, Net

Interest and other income, net consists primarily of interest income.

Results of Operations

Comparison of the three months ended March 31, 2023 and 2022



The following table sets forth our results of operations for the periods
presented (in thousands):

                                      Three Months Ended March 31,
                                       2023                   2022               Change
Operating expenses:
Research and development         $         12,980       $         13,199     $          (219 )
General and administrative                  6,829                  8,226              (1,397 )
Total operating expenses                   19,809                 21,425              (1,616 )
Interest and other income
(expense), net                              2,004                    (15 )             2,019
Net loss                         $        (17,805 )     $        (21,440 )   $         3,635



Research and Development Expenses

The following table summarizes the components of research and development expenses for the periods presented (in thousands):



                                                    Three Months Ended March 31,
                                                      2023                 2022            Change
External costs:
Pomotrelvir                                      $        9,431       $        7,814     $    1,617
Next generation and discovery programs                        -                2,850         (2,850 )
Total external costs                                      9,431               10,664         (1,233 )
Internal costs:
Salaries and benefits                                     2,685                1,820            865
Stock-based compensation                                    705                  463            242
Other unallocated costs                                     159                  252            (93 )
Total internal costs                                      3,549                2,535          1,014
Total research and development expenses          $       12,980       $       13,199     $     (219 )




Research and development expenses were $13.0 million for the three months ended
March 31, 2023, compared to $13.2 million for the three months ended March 31,
2022, a decrease of $0.2 million. The decrease was primarily driven by the
suspension of next generation and discovery programs while we advanced
pomotrelvir, offset by higher pomotrelvir costs and personnel costs, including
stock-based compensation. As a result of our decision to suspend clinical
development of pomotrelvir and winddown all research and development
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activities, we anticipate that our research and development expenses, excluding costs associated with the RIF, will decrease in the near term pending any decision related to our review of strategic alternatives.

General and Administrative Expenses



General and administrative expenses were $6.8 million for the three months ended
March 31, 2023, compared to $8.2 million for the three months ended March 31,
2022, a decrease of $1.4 million. The decrease was primarily due to decreases in
professional fees related to legal fees and pre-commercial planning. We
anticipate that our general and administrative expenses, excluding costs
associated with the RIF, will continue to decrease in the near term as we
decrease our headcount, pursuant to the RIF. Additionally, depending on the
outcome of our ongoing strategic alternative review process, including the
extent to which we identify and enter into any potential strategic transaction,
there may be an increase in general and administrative expenses in the future.

Interest and Other Income (Expense), Net



Interest and other income, net was $2.0 million for the three months ended March
31, 2023 compared to a nominal amount of interest and other expense for the
three months ended March 31, 2022, an increase of approximately $2.0 million.
The increase was due to higher interest rates.

Liquidity and Capital Resources

Sources of Liquidity and Capital



Since inception, we have not generated any revenue from any product sales or any
other sources and have incurred operating losses and negative cash flows from
our operations. Through March 31, 2023, we have primarily funded our operations
with gross cash proceeds of $44.5 million from sales of preferred stock and net
proceeds of approximately $257.5 million in connection with the Business
Combination and the PIPE Investment. See Note 1, Description of Business -
Business Combination, to the condensed financial statements included in Part I,
Item 1 of this Quarterly Report on Form 10-Q for additional information.

On January 12, 2023, we filed a shelf registration statement on Form S-3, which
was declared effective by the U.S. Securities and Exchange Commission on January
20, 2023 (2023 Shelf). The 2023 Shelf covers the offering, issuance and sale by
us of up to an aggregate of $200.0 million of our common stock, preferred stock,
debt securities, warrants to purchase our common stock, preferred stock or debt
securities, subscription rights to purchase our common stock, preferred stock or
debt securities and/or units consisting of some or all of these securities. In
connection with the 2023 Shelf, we entered into a Sales Agreement, dated January
11, 2023, with SVB Securities LLC (Sales Agent), pursuant to which we may offer
and sell up to $50.0 million of our common stock, from time to time at our sole
discretion, through the Sales Agent, in "at-the-market" offerings under the 2023
Shelf.

As of March 31, 2023, we had cash, cash equivalents and short-term investments
of $172.2 million and an accumulated deficit of $166.0 million. We believe that
our existing cash resources will be sufficient for at least the next 12 months
to allow us to fund current planned operations.

Cash and cash equivalents are comprised of cash on deposit, money market funds
and government agency securities. We have cash deposits with regulated financial
institutions, which may from time to time exceed the insurance provided on such
deposits.

CRO and CMO Agreements

We have entered into agreements in the normal course of business with certain
vendors for the provision of goods and services, which includes manufacturing
services with CMOs and development services with CROs. In connection with the
suspension of the Phase 2 clinical trial and the winding down of our research
and development activities, we are terminating or modifying substantially all of
our agreements with CMOs and CROs. Such contracts are generally cancellable by
us for convenience with a specified amount of notice. However, we may be subject
to certain termination fees or winddown costs upon termination of these
agreements. The amount of the cancellation or termination fees vary and are
based on the timing of the cancellation or termination and the specific terms of
the applicable agreement and are not capable of being estimated in good faith at
this time. The Company expects to recognize substantially all of the charges
related to the Restructuring Plan in the second quarter of 2023.

During the periods presented, we did not have, and we do not currently have, any
commitments or obligations, including contingent obligations, arising from
arrangements with unconsolidated entities or persons that have or are reasonably
likely to have a material current or future effect on our financial condition,
changes in financial condition, revenues or expenses, results of operations,
liquidity, cash requirements or capital resources.
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Cash Flows

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



                                               Three Months Ended March 31,
                                                 2023                 2022

Net cash used in operating activities $ (26,533 ) $ (20,362 ) Net cash provided by investing activities

           14,413                  

-


Net cash used in financing activities                    -                 

(397 ) Net decrease in cash and cash equivalents $ (12,120 ) $ (20,759 )




Operating Activities

During the three months ended March 31, 2023, net cash used in operating
activities consisted of a net loss of $17.8 million, net accretion of discounts
on available-for-sale securities of $1.4 million and a decrease of $9.0 million
in accounts payable and accrued expenses, partially offset by a non-cash charge
of $2.3 million related to stock-based compensation expense.

During the three months ended March 31, 2022, net cash used in operating activities consisted of a net loss of $21.4 million and a decrease in prepaid expenses and other current assets of $0.6 million, partially offset by a non-cash charge of $1.5 million related to stock-based compensation expense.

Investing Activities



During the three months ended March 31, 2023, net cash provided by investing
activities consisted of $30.2 million from the sale and maturities of
available-for-sale securities, offset by $15.8 million in purchases of
available-for-sale securities. There were no investing activities during the
three months ended March 31, 2022.

Financing Activities

During the three months ended March 31, 2023, there were no financing activities. During the three months ended March 31, 2022, net cash used was payments for transaction costs associated with the Business Combination.

Funding Requirements



We expect our operating expenses to decrease significantly beginning in the
second half of 2023 following our March 2023 decision to implement the
Restructuring Plan and the RIF. However, we may not realize, in full or in part,
the anticipated benefits and savings in operating expenses from these decisions
due to unforeseen difficulties, delays or unexpected costs. As a result, our
future expenses may fluctuate significantly from quarter-to-quarter and
year-to-year, depending on the outcome of our strategic process and depending on
whether we decide to pursue any future product development efforts.

Based on our current operating plan, we expect our existing cash, cash
equivalents and short-term investments will enable us to fund our operating
expenses and capital expenditure requirements for at least 12 months from the
date of filing this Quarterly Report on Form 10-Q. However, we have based this
estimate on assumptions that may prove to be wrong and we could exhaust our
capital resources sooner than we expect. Moreover, our resource requirements
could materially change depending on the outcome of our ongoing strategic
alternative review process, including to the extent we identify and enter into
any potential strategic transaction.

If we decide to pursue any future product development efforts, our future funding requirements will depend on, and could increase significantly as a result of, many factors, including:

whether we realize the anticipated cost savings in connection with the RIF and the Restructuring Plan;

our ability to consummate a strategic transaction and the nature and type of such a transaction

our ability to bring any product candidates through preclinical and clinical development, and the timing and scope of these research and development activities;

the costs of obtaining clinical and commercial supplies for any product candidates we may develop;

our ability to successfully commercialize any product candidates we may develop;

the manufacturing, selling and marketing costs associated with any product candidates we may develop, including the cost and timing of establishing our sales and marketing capabilities;

the amount and timing of sales and other revenues from any product candidates we may develop, including the sales price and the availability of adequate third-party reimbursement;

the time and cost necessary to respond to technological and market developments;


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the extent to which we may acquire or in-license other product candidates and technologies;

our ability to attract, hire and retain qualified personnel;

the costs of maintaining, expanding and protecting our intellectual property portfolio; and

the costs associated with operating as a public company and maintaining compliance with exchange listing and SEC requirements.



A change in the outcome of any of these or other variables with respect to the
development of any product candidate we may develop in the future could
significantly change the costs and timing associated with the development of
that product candidate. Further, our need for additional funds is heavily
dependent on the outcome of our ongoing assessment of strategic options and our
ability to consummate a strategic transaction.

Until such time, if ever, as we can generate substantial product revenues, and
subject to our pursuit of a potential strategic transaction and the consummation
of such potential transaction, we expect to finance our cash needs through a
combination of cash-on-hand, equity offerings, debt financings, collaborations,
strategic alliances and licensing arrangements. We currently have no credit
facility or committed sources of capital. To the extent that we raise additional
capital through the sale of equity or convertible debt securities, the ownership
interests of our existing stockholders may be diluted, and the terms of these
securities may include liquidation or other preferences that could adversely
affect the rights of such stockholders. Additional debt financing, if available,
may involve agreements that include restrictive covenants that limit our ability
to take specific actions, such as incurring additional debt, making capital
expenditures or declaring dividends, that could adversely impact our ability to
conduct our business.

If we raise additional funds through collaborations, strategic alliances or
licensing arrangements with third parties, we may have to relinquish valuable
rights to our technologies, future revenue streams, research program or product
candidates, or grant licenses on terms that may not be favorable to us. If we
are unable to raise additional funds through equity or debt financings when
needed, we may be required to delay, limit, reduce or terminate any 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.

Critical Accounting Policies and Significant Judgments and Estimates



The preparation of our unaudited condensed financial statements in conformity
with U.S. generally accepted accounting principles requires us to make estimates
and assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities, as of the date of the financial
statements, and the reported amounts of revenue and expenses during the reported
period. If these estimates differ significantly from actual results, the impact
to the unaudited condensed financial statements may be material. There have been
no material changes in our critical accounting policies and estimates from those
disclosed in our 2022 Form 10-K for the fiscal year ended December 31, 2022.
Please refer to Part II, Item 7 of our 2022 Form 10-K for a discussion of our
critical accounting policies and significant judgments and estimates.

Recent Accounting Pronouncements



We have not adopted any significant accounting policies since December 31, 2022.
Upon evaluation of recently issued accounting pronouncements, we do not believe
any will have a material impact on our condensed financial statements or related
financial statement disclosures.

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