Basis of Presentation

The unaudited condensed financial statements have been prepared in accordance with U.S. Securities and Exchange Commission (“SEC”) regulations and include all of the information and disclosures required by U.S. generally accepted accounting principles (“U.S. GAAP” or “GAAP”) for interim financial reporting, and, in the opinion of management include all adjustments necessary for a fair presentation of the condensed financial statements for each period presented. All adjustments are normal and

recurring in nature. Any reference in these notes to applicable guidance is meant to refer to the authoritative U.S. GAAP as found in the Accounting Standards Codification (“ASC”) and Accounting Standards Updates (“ASU”) of the Financial Accounting Standards Board (“FASB”). These unaudited condensed financial statements should be read in conjunction with the audited financial statements as of and for the year ended December 31, 2021 in the Company’s Annual Report on Form 10-K filed with the SEC on March 22, 2022. The results of operations for the interim periods are not necessarily indicative of results of operations for a full year. The Company’s condensed financial statements are stated in U.S. Dollars.

Segment Information

Operating segments are defined as components of an enterprise about which separate discrete information is available for evaluation by the chief operating decision maker, or decision-making group, in deciding how to allocate resources and in assessing performance. The Company views its operations and manages its business in one operating segment. All the assets and operations of the Company’s sole operating segment are located in the United States.

Use of Estimates

The preparation of condensed financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed financial statements and the reported amounts of expenses during the reporting period. Actual results could differ from those estimates. Management considers many factors in selecting appropriate financial accounting policies and controls and in developing the estimates and assumptions that are used in the preparation of these condensed financial statements. Management must apply significant judgment in this process. In addition, other factors may affect estimates, including expected business and operational changes, sensitivity and volatility associated with the assumptions used in developing estimates, and whether historical trends are expected to be representative of future trends. The estimation process often may yield a range of potentially reasonable estimates of the ultimate future outcomes, and management must select an amount that falls within that range of reasonable estimates. Estimates have been or are used in the following areas, among others: prepaid research and development contracts, fair value of the Company's common stock prior to the IPO, fair value of warrant derivative liabilities, stock compensation expense and income taxes.

Prior to its IPO, the Company utilized estimates and assumptions in determining the fair value of its common stock. The Company has granted stock options at exercise prices that represented the fair value of its common stock on grant date. The Company utilized various valuation methodologies in accordance with the framework of the American Institute of Certified Public Accountants Technical Practice Aid, Valuation of Privately Held Company Equity Securities Issued as Compensation, to estimate the fair value of its common stock prior to its IPO. Each valuation methodology includes estimates and assumptions that require the Company's judgment. These estimates and assumptions include a number of objective and subjective factors, including external market conditions, the prices at which the Company sold shares of redeemable convertible preferred stock, the superior rights and preferences of the redeemable convertible preferred stock senior to the Company's common stock at the time, and a probability analysis of various liquidity events at that time, such as a public offering or sale of the Company, under differing scenarios. Changes to the key assumptions used in the valuations could have resulted in different fair values of common stock at each valuation date.

The Company's results and business operations can also be affected or disrupted by economic, political, legislative, health concerns, such as the COVID-19 pandemic, regulatory, legal actions and geopolitical events, such as the ongoing military conflict between Ukraine and Russia and the related sanctions against Russia. Economic conditions, such as recessionary trends, inflation, interest, changes in regulatory laws and monetary exchange rates, and government fiscal policies, can also have a significant effect on operations. While the Company maintains reserves for anticipated liabilities, the Company could be affected by civil, criminal, regulatory, or administrative actions, claims, or proceedings. The extent to which the Company’s business can be impacted by future events is highly uncertain and cannot be predicted at this time.

Concentration of Credit Risk and Other Risks and Uncertainties

The Company has no significant off-balance sheet concentrations of credit risk, such as foreign currency exchange contracts, option contracts, or other hedging arrangements. Financial instruments that potentially subject the Company to concentrations of credit risk primarily consist of cash and cash equivalents, which consist of money market funds that invest primarily in short­ term U.S. government securities and short term marketable securities that are primarily invested in fixed income securities.

The Company has not yet generated any revenue from the sale of its products and is subject to all of the risks and uncertainties that are typically faced by biotechnology companies that devote substantially all of their efforts to research and development and clinical trials and do not yet have commercial products. The Company expects to continue incurring losses for the foreseeable future.

Cash and Cash Equivalents

The Company considers all highly liquid investments purchased with original maturities of 90 days or less at acquisition to be cash equivalents. Cash and cash equivalents include cash held in banks and amounts held primarily in interest-bearing money market accounts. Cash equivalents are carried at cost, which approximates their fair market value.

Marketable Securities

The Company determines the appropriate classification of marketable securities at the time of purchase and reevaluates such designation at each condensed balance sheet date. The Company classified all of its marketable securities at December 31, 2021 as “available-for-sale” pursuant to ASC Topic 320, Investments – Debt and Equity Securities. Investments not classified as cash equivalents are presented as either short-term or long-term investments based on both their maturities as well as the time period the Company intends to hold such securities. Available-for-sale securities are maintained by an investment manager and primarily consist of fixed income securities. Available-for-sale securities are carried at fair value with the unrealized gains and losses included in other comprehensive loss as a component of stockholders’ equity (deficit) until realized. Any premium or discount arising at purchase is amortized or accreted to interest income over the life of the instrument. Realized gains and losses are determined using the specific identification method and are included in other (income) expense, net. There were no material realized gains or losses on marketable securities recognized for three months ended March 31, 2022 or 2021.

Initial Public Offering Costs

Costs directly attributable to the Company’s IPO which were incurred in 2021 were deferred and capitalized as prepaid expenses and other current assets at December 31, 2021. These costs primarily represented legal, underwriting and accounting costs related to the Company’s efforts to raise capital through a public sale of its common stock. Any additional costs incurred during the three months ended March 31, 2022 were deferred until the completion of the IPO, which occurred on January 11, 2022, at which time they were reclassified to additional paid in capital as a reduction of the IPO gross proceeds. At December 31, 2021, the Company had capitalized $2.6 million of deferred IPO costs, as prepaid expenses and other current assets. A total of $4.5 million of IPO issuance costs were incurred through January 11, 2022, which were recorded as a reduction of the IPO gross proceeds.

Redeemable Convertible Preferred Stock

In accordance with ASC Topic 480, Distinguishing Liabilities from Equity (“ASC 480”), preferred stock issued with redemption provisions that are outside of the control of the issuer or that contain certain redemption features in a Deemed Liquidation Event (as defined in our Amended and Restated Certificate of Incorporation) is required to be presented outside of stockholders' equity (deficit) on the face of the condensed balance sheet and certain disclosures are required to be included in the notes to the condensed financial statements. If required, changes in fair value are recorded as additional paid in capital and/or accumulated deficit in the condensed balance sheets. Changes in fair value that would reduce the fair value of the redeemable convertible preferred stock below the original issue price are limited so that the value of the shares are not recorded below the original issue price.

Fair Value Measurements

Financial assets and liabilities are recorded at fair value. The carrying amount of certain financial instruments, including cash and cash equivalents, accounts payable and other current liabilities approximate fair value due to their relatively short maturities. Assets and liabilities recorded at fair value on a recurring basis in the condensed balance sheets are categorized based upon the level of judgment associated with the inputs used to measure their fair values. Fair value is defined as the exchange price that would be received for an asset or an exit price that would be paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The authoritative guidance on fair value measurements establishes a three-tier fair value hierarchy for disclosure of fair value measurements as follows:

Level 1—Inputs are unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date;

Level 2—Inputs are observable, unadjusted quoted prices in active markets for similar assets or liabilities, unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the related assets or liabilities; and

Level 3—Unobservable inputs that are significant to the measurement of the fair value of the assets or liabilities that are supported by little or no market data.

Where quoted prices are available in an active market, assets or liabilities are classified as Level 1.

To the extent that a valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. Accordingly, the degree of judgment exercised by the Company in determining fair value is greatest for instruments categorized in Level 3. A financial instrument's level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. There were no transfers within the fair value hierarchy in 2022 and 2021.

Research and Development

The Company charges all research and development costs, both internal and external, to expense when incurred. Costs are considered incurred based on an evaluation of the progress to completion of specific tasks under each contract using information and data provided to the Company by its clinical sites and vendors. These costs consist of direct and indirect costs associated with specific projects, as well as fees paid to various entities that perform certain research on behalf of the Company. The Company's research and

development expenses consist primarily of clinical trial expenses, consulting costs and stock-based compensation, and costs associated with required regulatory filings, licenses, and fees.

Stock-Based Compensation

The Company accounts for its stock-based compensation awards in accordance with ASC Topic 718, Compensation – Stock Compensation (“ASC 718”). ASC 718 requires all stock-based payments to employees, including grants of employee stock options, to be recognized in the statements of operations and comprehensive loss based on their fair values. The Company’s stock-based awards are subject only to service-based vesting conditions. The Company estimates the fair value of its stock-based awards using the Black-Scholes option pricing model, which requires the input of assumptions, including (a) the expected stock price volatility, (b) the calculation of expected term of the award, (c) the risk-free interest rate and (d) expected dividends.

Prior to its IPO, the Company had based its estimate of expected volatility on the historical volatility of a group of similar companies that are publicly traded. The computation of expected volatility is based on the historical volatility of a representative group of companies with similar characteristics to the Company, including stage of product development and life science industry focus. The Company believes the group selected has sufficient similar economic and industry characteristics and includes companies that are most representative of the Company.

The Company uses the simplified method as prescribed by the SEC Staff Accounting Bulletin No. 107, Share-Based Payment, to calculate the expected term, as it does not have sufficient historical exercise data to provide a reasonable basis upon which to estimate the expected term for options granted to employees and utilizes the contractual term for options granted to non-employees. The expected term is applied to the stock option grant group as a whole, as the Company does not expect substantially different exercise or post-vesting termination behavior among its employee population. The risk-free interest rate is based on a treasury instrument whose term is consistent with the expected life of the stock options.

Compensation expense related to awards to employees is calculated on a straight-line basis by recognizing the grant date fair value over the associated service period of the award, which is generally the vesting term.

Derivative Instruments, Including Warrant Derivative Liabilities

The Company accounts for derivatives, specifically freestanding detachable stock purchase warrants, in accordance with ASC Topic 815, Derivatives and Hedging ("ASC 815"). This guidance establishes accounting and reporting principles for derivative instruments, including certain derivative instruments embedded in other contracts.

Net Loss Per Share

The Company's basic net loss per share attributable to common stockholders is calculated by dividing the net loss attributable to common stockholders by the weighted average number of shares of common stock outstanding for the period. The diluted net loss per share attributable to common stockholders is computed by giving effect to all potential common stock equivalents outstanding for the period determined using the treasury stock method. For purposes of this calculation, redeemable convertible preferred stock prior to the Company's IPO and stock options to purchase common stock are considered to be common stock equivalents but have been excluded from the calculation of diluted net loss per share attributable to common stockholders as their effect is anti-dilutive.

Income Taxes

Income taxes are recorded in accordance with ASC Topic 740, Income Taxes ("ASC 740"), which provides for deferred taxes using an asset and liability approach. The Company recognizes deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the condensed financial statements or tax returns. Deferred tax assets and liabilities are determined based on the difference between the condensed financial statement and tax bases of assets and liabilities and for loss and credit carryforwards using enacted tax rates anticipated to be in effect for the year in which the differences are expected to reverse. Valuation allowances are provided if, based upon the weight of available evidence, it is more likely than not that some or all the deferred tax assets will not be realized.

The Company accounts for uncertain tax positions in accordance with the provisions of ASC 740. When uncertain tax positions exist, the Company recognizes the tax benefit of tax positions to the extent that some or all the benefit will more likely than not be realized. The determination as to whether the tax benefit will more likely than not be realized is based upon the technical merits of the tax position, as well as consideration of the available facts and circumstances. As of March 31, 2022, and December 31, 2021, the Company does not have any significant uncertain tax positions. If the Company were to incur interest and penalties on uncertain tax positions, it would classify them as income tax expense.

The Company files U.S. federal and state income tax returns.

The Company did not record a current or deferred income tax expense or benefit for the three months ended March 31, 2022 and 2021, due to the Company’s net and comprehensive losses and increases in its deferred tax asset valuation allowance.

Comprehensive Loss

Comprehensive loss is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. For the three months ended March 31, 2022, the Company’s only element of other comprehensive loss was unrealized losses on available-for-sale securities. Comprehensive loss for the three months ended March 31, 2021, equaled net loss for the period.

Litigation and Other Contingencies

The Company may be subject to legal proceedings and claims arising from the ordinary course of its business, including contract and employment claims. U.S. GAAP requires that a liability for contingencies be recorded when it is probable that a liability has occurred, and the amount of the liability can be reasonably estimated. In the opinion of management, the aggregate liability, if any, with respect to such ordinary course of business actions will not have a material adverse effect on the financial position or results of operations of the Company.

Reverse Stock Split

On December 30, 2021, the Company’s Board of Directors approved an amendment to the Company’s amended and restated certificate of incorporation to effect a 3.4-for-1 reverse stock split of the Company’s common stock, which was effected on December 30, 2021. Stockholders entitled to fractional shares as a result of the reverse stock split will receive a cash payment in lieu of receiving fractional shares. The par value of the common stock was not adjusted as a result of the reverse stock split. Shares of common stock underlying outstanding stock options and other equity instruments were proportionately reduced and the respective exercise prices, if applicable, were proportionately increased in accordance with the terms of the appropriate securities agreements. Shares of common stock reserved for issuance upon the conversion of our convertible preferred stock were proportionately reduced and the respective conversion prices were proportionately increased. All common share and per share data have been retrospectively revised including the three months ended March 31, 2021, to reflect the reverse stock split.

Recent Accounting Pronouncements

From time to time, new accounting pronouncements are issued by the FASB or other standard setting bodies and adopted by the Company as of the specified effective date. Unless otherwise discussed, the Company believes the impact of recently issued standards that are not yet effective will not have a material impact on its financial position or results of operations upon adoption.