You should read the following discussion of our financial condition and results of operations in conjunction with our unaudited Interim Financial Statements and the notes thereto included elsewhere in this Quarterly Report on Form 10-Q. This discussion and other parts of this report contains forward-looking statements that involve risks and uncertainties, such as our plans, objectives, expectations, intentions, and beliefs, as well as assumptions made by, and information currently available to, our management. Our actual results could differ materially from those discussed in these forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those discussed in the section of this report entitled "Risk Factors," under Part II, Item 1A of this report and those discussed in our other disclosures and filings.

Overview

We are a clinical-stage oncology company focused on leveraging a deep scientific understanding of cancer biology and medicinal chemistry to develop and advance novel, orally available therapies for the treatment of solid tumors. Our philosophy is to build a company based upon not only creative science and thoughtful management, but also upon the efficient translation of those ideas into therapies that will improve patient's lives. To this end, we currently are advancing three programs, TPST-1495, TPST-1120 and a third program targeting the three prime repair exonuclease ("TREX-1"). TPST-1495 is a dual antagonist of the EP2 and EP4 prostaglandin E2 receptors, and, to our knowledge, is the only such dual antagonist in clinical development. TPST-1495 is currently in a Phase 1 trial in solid tumors. Our second clinical program, TPST-1120, is a selective antagonist of peroxisome proliferator-activated receptor alpha (" PPAR?"), and is also in a Phase 1 trial in solid tumors. Similar to TPST-1495, we believe TPST-1120 is the only PPAR? antagonist in clinical development. We also have a third program in preclinical studies that could be the first to target TREX-1, a cellular enzyme that regulates the innate immune response in tumors.

We have no products approved for commercial sale and have not generated any revenue from product sales. From inception to June 30, 2022, we have raised $164.4 million, through sales of common stock, convertible preferred stock and issuance of debt.

We have never been profitable and has incurred operating losses in each period since inception. Our net losses were $17.7 million and $12.4 million for the six months ended June 30, 2022 and 2021, respectively. As of June 30, 2022, we had an accumulated deficit of $117.7 million. Substantially all of the operating losses resulted from expenses incurred in connection with our research and development programs and from general and administrative costs associated with our operations.

We expect to incur significant expenses and increasing operating losses for at least the next several years as we initiate and continue the clinical development of, and seek regulatory approval for, our product candidates and add personnel necessary to advance our pipeline of clinical-stage product candidates. In addition, operating as a publicly traded company will involve the hiring of additional financial and other personnel, upgrading our financial information and other systems, and incurring substantial costs associated with operating as a public company. We expect our operating losses will fluctuate significantly from quarter to quarter and year to year due to timing of clinical development programs and efforts to achieve regulatory approval.

As of June 30, 2022, we had cash and cash equivalents of $51.6 million. Our ability to fund continued development will require additional capital, and we intend to raise such capital through the issuance of additional debt or equity including in connection with potential merger opportunities, or through business development activities. Our ability to continue as a going concern is dependent upon our ability to successfully accomplish these plans and secure sources of financing and ultimately attain profitable operations. If we are unable to obtain adequate capital, we could be forced to cease operations.

Recent Developments

PIPE Financing

In April 2022, we completed a private investment in public equity ("PIPE") financing from the sale of 3,149,912 shares of our common stock at a price per share of $2.36 and, in lieu of shares of common stock, pre-funded warrants to purchase up to 3,206,020 shares of our common stock at a price per pre-funded warrant of $2.359 to EcoR1 Capital, LLC and Versant Venture Capital (the "PIPE Investors"). Net proceeds from the PIPE financings totaled approximately $14.5 million, after deducting offering expenses. The pre-funded warrants provide that the holder will not have the right to exercise any portion of its warrants if such holder, together with its affiliates, would beneficially own in excess of 9.99% of the number of shares of the Company's common stock outstanding immediately after giving effect to such exercise (the "Beneficial Ownership


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Limitation"); provided, however, that the holder may increase or decrease the Beneficial Ownership Limitation by giving 61 days' notice, but not to any percentage in excess of 19.99%. We entered into a registration rights agreement (the "Registration Rights Agreement") with the PIPE Investors pursuant to which we filed a registration statement with the SEC registering the resale of the 3,149,912 shares common stock and the 3,206,020 shares of common stock underlying the pre-funded warrants issued in the PIPE financing.

Components of Results of Operations

Research and Development Expense

Research and development expenses represent costs incurred to conduct research and development, such as the development of our product candidates.

We recognize all research and development costs as they are incurred. Research and development expenses consist primarily of the following:

•Salaries, benefits and stock-based compensation;



•licensing costs;

•allocated occupancy;

•materials and supplies;

•contracted research and manufacturing;

•consulting arrangements; and

•other expenses incurred to advance our research and development activities.

The largest component of our operating expenses has historically been the investment in research and development activities. We expect research and development expenses will increase in the future as we advance our product candidates into and through clinical trials and pursues regulatory approvals, which will require a significant investment in costs of clinical trials, regulatory support and contract manufacturing and inventory build-up. In addition, we continue to evaluate opportunities to acquire or in-license other product candidates and technologies, which may result in higher research and development expenses due to license fee and/or milestone payments, as well as added clinical development costs.

The process of conducting clinical trials necessary to obtain regulatory approval is costly and time consuming. We may never succeed in timely developing and achieving regulatory approval for our product candidates. The probability of success of our product candidates may be affected by numerous factors, including clinical data, competition, manufacturing capability and commercial viability. As a result, we are unable to determine the duration and completion costs of our development projects or when and to what extent we will generate revenue from the commercialization and sale of any of our product candidates.

General and Administrative Expenses

General and administrative expenses consist of employee-related expenses, including salaries, benefits, travel and non-cash stock-based compensation, for our personnel in executive, finance and accounting, and other administrative functions, as well as fees paid for legal, accounting and tax services, consulting fees and facilities costs not otherwise included in research and development expense. Legal costs include general corporate legal fees and patent costs. We expect to incur additional expenses as a result of becoming a public company following completion of the merger, including expenses related to compliance with the rules and regulations of the SEC and Nasdaq, additional insurance, investor relations and other administrative expenses and professional services.

Other (Expense) Income, Net

Other (expense) income, net consists primarily of interest expense, interest income, and various income or expense items of a non-recurring nature.

Results of Operations



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Comparison of the three months ended June 30, 2022 and 2021



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

                                                Three Months Ended
                                                     June 30,
                                                2022           2021
                                                  (in thousands)
Expenses:
Research and development                    $    5,651      $  4,229
General and administrative                       3,123         2,556
Total expenses                                   8,774         6,785
Operating loss                                  (8,774)       (6,785)
Interest expense                                  (464)         (276)
Interest and other (expense) income, net            70             3
Provision for income taxes                           -             -
Net loss                                    $   (9,168)     $ (7,058)



Research and development

Our research and development expenses for the three months ended June 30, 2022 and 2021 were primarily incurred in connection with our most advanced product candidates, TPST-1120 and TPST-1495. We have not historically tracked research and development expense by program other than direct external expenses in conducting clinical trials for TPST-1120 and TPST-1495. We typically have various early-stage research and drug discovery projects, as well as various potential product candidates undergoing clinical trials. Our internal resources, employees and infrastructure are not directly tied to any one research and drug discovery project and our resources are typically deployed across multiple projects. As such, we do not maintain information regarding these costs incurred for these early-stage research and drug discovery programs on a project specific basis.

Research and development expense increased by $1.5 million to $5.7 million for the three months ended June 30, 2022, compared to the prior year period. The following table summarizes our research and development expenses for the three months ended June 30, 2022 and 2021:



                                                    Three Months Ended June 30,
                                                         2022                   2021
                                                           (in thousands)
Research and development outside services    $        3,686                   $ 2,850
Compensation expense                                  1,010                       679
Stock-based compensation expense                        125                        44
Consulting and professional services                    374                       425
Other expenses                                          456                       231
Total research and development expense       $        5,651                   $ 4,229

The increase in research and development expense of $1.5 million for the three months ended June 30, 2022, compared to the prior year period, was primarily attributable to expanded research and development efforts incurred from contract research organizations and third-party vendors, as well as compensation expenses due to an increase in employee headcount.

General and administrative

General and administrative expenses increased by $0.5 million to $3.1 million for the three months ended June 30, 2022, compared to the prior year period. The increase was primarily due to an increase of $0.3 million in insurance expense, as a result of operating as a publicly traded company.



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Other (expense) income, net

For the three months ended June 30, 2022 and 2021, other (expense) income, net consisted of total interest expense of $464 thousand and $276 thousand, respectively, related to the Oxford Loan, and interest income of $70 thousand and $3 thousand, respectively.

Comparison of the six months ended June 30, 2022 and 2021



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

                                                 Six Months Ended
                                                     June 30,
                                               2022           2021
                                                  (in thousands)
Expenses:
Research and development                    $  10,760      $   7,821
General and administrative                      6,175          4,091
Total expenses                                 16,935         11,912
Operating loss                                (16,935)       (11,912)
Interest expense                                 (797)          (507)
Interest and other (expense) income, net           73              6
Provision for income taxes                          -              -
Net loss                                    $ (17,659)     $ (12,413)



Research and development

Our research and development expenses for the six months ended June 30, 2022 and 2021 were primarily incurred in connection with our most advanced product candidates, TPST-1120 and TPST-1495. We have not historically tracked research and development expense by program other than direct external expenses in conducting clinical trials for TPST-1120 and TPST-1495. We typically have various early-stage research and drug discovery projects, as well as various potential product candidates undergoing clinical trials. Our internal resources, employees and infrastructure are not directly tied to any one research and drug discovery project and our resources are typically deployed across multiple projects. As such, we do not maintain information regarding these costs incurred for these early-stage research and drug discovery programs on a project specific basis.

Research and development expense increased by $3.0 million to $10.8 million for the six months ended June 30, 2022. The following table summarizes our research and development expenses for the six months ended June 30, 2022 and 2021:



                                                    Six Months Ended June 30,
                                                        2022                 2021
                                                         (in thousands)
Research and development outside services    $        6,900                $ 4,963
Compensation expense                                  2,023                  1,400
Stock-based compensation expense                        227                    122
Consulting and professional services                    669                    891
Other expenses                                          941                    445
Total research and development expense       $       10,760                $ 7,821

The increase in research and development expense of $3.0 million for the six months ended June 30, 2022, compared to the prior year period, was primarily attributable to expanded research and development efforts incurred from contract research organizations and third-party vendors, as well as compensation expenses due to an increase in employee headcount.

General and administrative


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General and administrative expenses increased by $2.1 million to $6.2 million for the six months ended June 30, 2022, compared to the prior year period. The increase was primarily due to an increase of $1.2 million in professional and consulting fees and an increase of $0.6 million in insurance expense, as a result of operating as a publicly traded company.

Other (expense) income, net

For the six months ended June 30, 2022 and 2021, other (expense) income, net consisted of total interest expense of $797 thousand and $507 thousand, respectively, related to the Oxford Loan, and interest income of $73 thousand and $6 thousand, respectively.

Liquidity and Capital Resources

Sources of Liquidity

Since inception through June 30, 2022, our operations have been financed primarily by net cash proceeds from the sale of common stock, pre-funded warrants to purchase common stock, convertible preferred stock and issuance of debt. As of June 30, 2022, we had $51.6 million in cash and cash equivalents and an accumulated deficit of $117.7 million. We expect that our research and development and general and administrative expenses will increase, and, as a result, we anticipate that we will continue to incur increasing losses in the foreseeable future.

We believe our cash and cash equivalents as of June 30, 2022 will fund our ongoing working capital, investing, and financing requirements for at least the next 12 months.

On January 15, 2021, we entered into a loan and security agreement with Oxford to borrow a term loan amount of $35.0 million to be funded in three tranches. Tranche A of $15.0 million was funded on January 15, 2021. Tranche B of $10.0 million expired on March 31, 2022. Tranche C of $10,000 is available at lender's option. The term loan matures on August 1, 2025 and has an annual floating interest rate of 7.15% which is an index rate plus 7%. The index rate is the greater of (i) 30-day US LIBOR or (ii) 0.15%. As of June 30, 2022, the balance of the loan payable (net of debt issuance costs) was $15,301, of which $2,000 was classified as current and $13,301 was classified as non-current.

On July 23, 2021, we entered into a sales agreement with Jefferies LLC, pursuant to which we may sell, from time to time, up to an aggregate sales price of $100.0 million of our common stock through the Agent in a series of one or more ATM equity offerings (the "ATM Program").

In April 2022, the Company completed a PIPE financing, which included the issuance of pre-funded warrants to purchase up to 3,206,020 shares of its common stock at a price per pre-funded warrant of $2.359 to the PIPE Investors. Net proceeds from the PIPE financings totaled approximately $14.5 million, after deducting offering expenses.

Cash Flows



The following table summarizes our cash flows for the six months ended June 30,
2022 and 2021:

                                                  Six Months Ended June 30,
                                                      2022              2021
                                                        (in thousands)
Cash used in operating activities           $      (15,521)             $ (6,183)
Cash used in investing activities                      (98)                  (84)
Cash provided by financing activities               15,779                55,905
Net increase in cash and cash equivalents   $          160              $ 49,638

Cash flows from operating activities

Cash used in operating activities for the six months ended June 30, 2022 was $15.5 million, consisting of a net loss of $17.7 million, add back of non-cash adjustments for depreciation, stock-based compensation, non-cash operating lease expense and other non-cash items totaling $1.8 million, plus changes in operating assets and liabilities of $0.4 million.



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Cash used in operating activities for the six months ended June 30, 2021 was $6.2 million consisting of a net loss of $12.4 million, add back of non-cash adjustments for depreciation, stock-based compensation, non-cash operating lease expense and other non-cash items totaling $1.2 million, plus changes in operating assets and liabilities of $5.0 million.

Cash flows from investing activities

Cash used in investing activities for the six months ended June 30, 2022 and 2021 was related to purchases of property and equipment, primarily related to office, laboratory and computer equipment.

Cash flows from financing activities

Cash provided by financing activities for the six months ended June 30, 2022 was $15.8 million, primarily related to proceeds from the issuance of common stock of $1.3 million from the ATM program, and issuance of common stock of $7.2 million and pre-funded warrants of $7.3 million related to the PIPE financing.

Cash provided by financing activities for the six months period ended June 30, 2021 was $55.9 million consisting of (i) proceeds from Oxford Loan of $14.9 million (net of issuance costs), (ii) issuance of common stock of $30.0 million concurrent with closing of the merger with Millendo and (iii) cash brought over by Millendo as a result of the merger, offset by payment of reverse recapitalization costs of $6.1 million.

Material Cash Requirements

We expect our expenses to increase in connection with our ongoing development activities, particularly as we continue the research, development and clinical trials of, and seek regulatory approval for, our product candidates. In addition, subject to obtaining regulatory approval for our product candidates, we anticipate that we will need substantial additional funding in connection with our continuing operations.

Our material cash requirements as of June 30, 2022 primarily relate to the maturities of the principal obligations under our long term debt, operating leases for office space, trade payables, and accrued expenses. As of June 30, 2022, we have $22.4 million payable within 12 months.

Until we can generate a sufficient amount of product revenue to finance our cash requirements, we expect to finance our future cash needs primarily through the issuance of additional equity, borrowings and strategic alliances with partner companies. To the extent that we raise additional capital through the issuance of additional equity or convertible debt securities, the ownership interest of our stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of existing stockholders. Debt financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends. If we raise additional funds through marketing and distribution arrangements or other collaborations, strategic alliances or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates or 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 our product development or commercialization efforts or grant rights to develop and market product candidates to third parties that we would otherwise prefer to develop and market ourself.

Recent Accounting Pronouncements

See Note 2 to our Condensed Consolidated Financial Statements for a description of recent accounting pronouncements applicable to our Condensed Consolidated Financial Statements.

Smaller Reporting Company Status

We are a smaller reporting company as defined in the Securities Exchange Act of 1934, as amended. We may take advantage of certain of the scaled disclosures available to smaller reporting companies and will be able to take advantage of these scaled disclosures for so long as (i) our voting and non-voting common stock held by nonaffiliates is less than $250.0 million measured on the last business day of our second fiscal quarter or (ii) our annual revenue is less than $100.0 million during the most recently completed fiscal year and our voting and non-voting common stock held by non-affiliates is less than $700.0 million measured on the last business day of our second fiscal quarter.

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