You should read the following discussion and analysis of our financial condition and results of operations together with our consolidated financial statements and related notes included elsewhere in this Annual Report on Form 10-K. This discussion and other parts of this Form 10-K contain forward-looking statements that involve risks and uncertainties, such as statements of our plans, objectives, expectations and intentions. 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 Form 10-K entitled "Risk Factors."





Important Note


This Management's Discussion and Analysis of Financial Condition and Results of Operations includes a discussion of our operations for the years ended December 31, 2022 and December 31, 2021.

References in this report to "we," "us," "our" and similar first-person expressions refer to Aravive, Inc. (formerly known as Versartis, Inc.) and its subsidiaries, including Private Aravive. References to "Versartis, Inc." or "Private Aravive" refer to those respective companies prior to the completion of their merger in October 2018.





Overview


We are a clinical-stage oncology company developing transformative treatments designed to halt the progression of life-threatening diseases, including cancer and fibrosis.

Batiraxcept (formerly AVB-500), is an ultrahigh-affinity, decoy protein that targets the GAS6-AXL signaling pathway. By capturing serum GAS6, batiraxcept starves the AXL pathway of its signal, potentially halting the biological programming that promotes disease progression. AXL receptor signaling plays an important role in multiple types of malignancies by promoting metastasis, cancer cell survival, resistance to treatments, and immune suppression.

Our current development program benefits from the availability of a proprietary serum-based biomarker that has accelerated batiraxcept drug development by allowing us to select a pharmacologically active dose and may potentially identify the cancer patients that have the best chance of responding to batiraxcept.

In our completed Phase 1 clinical trial in healthy volunteers with batiraxcept, we have demonstrated proof of mechanism for batiraxcept in neutralizing GAS6. Importantly, batiraxcept had a favorable safety profile preclinically and in the first in human trial and Phase 1b clinical trial in cancer patients.

In August 2018, the FDA designated as a Fast Track development program the investigation of batiraxcept for platinum-resistant recurrent ovarian cancer.

In December 2018, we initiated our Phase 1b clinical trial of batiraxcept combined with standard of care therapies in patients with PROC, for which we reported results in July 2020.

In April 2020, we entered into a license and collaboration agreement with WuXi, the objective of which is to identify and develop novel high-affinity bispecific antibodies against CCN2, also known as CTGF, implicated in cancer and fibrosis and identified from a similar target discovery screen that identified the significance of the AXL/GAS6 pathway in cancer. However, in August 2022, the Company temporarily halted work on the CTGF program with WuXi in an effort to focus all resources on the clinical programs.

In November 2020, we entered into the 3D Medicines Agreement, whereby we granted 3D Medicines an exclusive license to develop and commercialize products that contain batiraxcept as the sole drug substance, for the diagnosis, treatment or prevention of human oncological diseases, in the Territory.

During the fourth quarter of 2020, we initiated our Phase 1b portion of the Phase 1b/2 trial of batiraxcept in ccRCC and we dosed our first patient in the trial in March 2021.

During the first quarter 2021, we initiated our registrational Phase 3 trial of batiraxcept in PROC and we dosed our first patient in the trial in April 2021.This global, randomized, double-blind, placebo-controlled trial is designed to evaluate efficacy and safety of batiraxcept at a dose of 15 mg/kg in combination with PAC versus PAC alone.

In May 2021, we announced expansion of batiraxcept development programs into first line pancreatic ductal adenocarcinoma ("PDAC") with the goal of initiating the trial by end of 2021. We dosed our first patient in August 2021.

In June 2021, we announced initial safety, pharmacokinetic, and pharmacodynamic results from the batiraxcept Phase 1b portion of the Phase 1b/2 clinical trial in ccRCC.

In October 2021, the EMA granted orphan drug designation for batiraxcept for the treatment of PROC, following a recommendation from the Committee for Orphan Medicinal Products.

In November 2021, we announced preliminary data from our Phase 1b trial evaluating batiraxcept in combination with cabozantinib for treatment of ccRCC.

In January 2022, we announced that we had dosed the first patient in the Phase 2 portion of the Phase 1b/2 study of batiraxcept in combination with cabozantinib for treatment of ccRCC.

In March 2022, we announced updated data and new biomarker data from our Phase 1b trial of batiraxcept in ccRCC.

In May 2022, we provided updated data and information at our Key Opinion Leader symposium.

In October 2022, we received a $6 million development milestone payment from 3D Medicines based on the initiation of the global Phase 3 platinum resistant ovarian cancer ("PROC") clinical trial in the Territory for the development of batiraxcept.

In November 2022, the FDA designated as a Fast Track development program the investigation of batiraxcept for treatment of patients with advanced or metastatic ccRCC who have progressed after 1 or 2 prior lines of systemic therapy that include both immuno-oncology (IO)-based and vascular endothelial growth factor tyrosine kinase inhibitor (VEGF-TKI)-based therapies (either in combination or sequentially).

In January 2023, the Company announced complete enrollment in the global Phase 3 platinum resistant ovarian cancer ("PROC") clinical trial.





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Recent Clinical Developments


The Phase 3 Platinum Resistant Ovarian Cancer (PROC) Trial Remains On Track

The registration-directed Phase 3 program of batiraxcept in combination with paclitaxel in PROC remains on track and enrollment has been completed. We expect to report topline data from the trial by mid-2023. CMC work remains on track with the goal of filing a BLA by year-end 2023. The global, randomized, double-blind, placebo-controlled Phase 3 trial is evaluating efficacy and tolerability of batiraxcept at a dose of 15 mg/kg in combination with paclitaxel versus placebo in combination with paclitaxel. The trial has completed enrollment of over 360 patients with platinum resistant, high-grade serous ovarian cancer who have received 1-4 prior lines of therapy.

Updated Clear Cell Renal Cell Cancer Data (ccRCC) Continues to Be Encouraging

As of August 8, 2022, 26 previously treated (2L+) patients with ccRCC have been treated with batiraxcept in the Phase 1b portion of a Phase 1b/2 trial at doses of 15 mg/kg (n=16) and 20 mg/kg (n=10), plus cabozantinib 60 mg daily. There were no dose limiting toxicities observed at either dose. The best overall response rate (ORR, confirmed) in the ITT population was 42%. One of the objectives of the ongoing Phase 1b/2 ccRCC trial is to evaluate the correlation of baseline serum soluble AXL (sAXL)/GAS6 (biomarker) with radiographic response in patients with ccRCC treated with batiraxcept plus cabozantinib. The best ORR in the biomarker high population was 55%. The 9-month progression-free survival (PFS) rate was 65% in the ITT population and 72% in the biomarker high population. We have discussed a registrational path with the US FDA that includes use of the sAXL/Gas6 ratio as a basis for an accelerated approval.

We expect to report additional data from the Phase 1b portion and preliminary data from the Phase 2 portion of the ccRCC trial mid-2023.

Expansion of Phase 1b Pancreatic Adenocarcinoma Study

As of September 20, 2022, 18 patients with pancreatic adenocarcinoma ("PDAC") had been treated with 15 mg/kg (Days 1 & 15) + nab-paclitaxel (125 mg/m2 on Days 1, 8, & 15) and gemcitabine (1000 mg/m2 on Days 1, 8, & 15) and have pharmacokinetic data. As has been seen for other Phase 1b cancer studies with batiraxcept, there is a relationship between batiraxcept exposures and clinical activity such that 5 out of the 9 patients in the PDAC study whose batiraxcept levels exceeded the minimum efficacious concentration (MEC) of batiraxcept had a response vs 1 out of 9 patients in the low MEC group. Similarly, the mPFS in the high MEC group was 5.6 months (95% CI 2.1, not evaluable) vs 2.7 months (95% CI 1.1, 5.4) in the low MEC group. In May 2022, we had reported that batiraxcept in combination with gemcitabine and nab-paclitaxel was generally well-tolerated with no unexpected safety signals. Based on these data, we intend to dose an additional 6-18 patients at higher doses (20mg/kg and potentially 25mg/kg) to see if higher doses will increase the proportion of patients who will achieve high MEC of batiraxcept and increase the clinical activity of batiraxcept in combination with gemcitabine + nab-paclitaxel.

Recent Financial Developments

In January 2022, we entered into an investment agreement (the "Investment Agreement") with Eshelman Ventures, LLC and, solely for purposes of Article IV and Article V of the Investment Agreement, Dr. Eshelman, Eshelman Ventures, agreed to purchase pre-funded warrants of up to 4,545,455 shares of our common stock, par value $0.0001 per share ("Warrant Shares"), at a price of $2.20 per share, which was the consolidated closing bid price of our common stock on Nasdaq on December 31, 2021, for an aggregate purchase price of $10 million. The closing of the transaction occurred on January 5, 2022. Pursuant to the terms of the Investment Agreement, we were required to file a registration statement registering the shares of common stock underlying the pre-funded warrant. The registration statement was filed on January 5, 2022 and declared effective by the SEC on January 18, 2022. The pre-funded warrants issued to Eshelman Ventures, LLC were exercisable upon the approval by our stockholders of the exercise, which approval was obtained on April 1, 2022, at which time the pre-funded warrants were exercised in full.

On March 31, 2022, we closed a registered direct offering of our common stock with a single healthcare-focused institutional investor and Eshelman Ventures, LLC, pursuant to which we issued 3,185,216 shares of common stock, 1,665,025 pre-funded warrants (the "March Pre-Funded Warrants") and common stock warrants (the "Common Stock Warrants") to purchase up to 4,850,241 shares of common stock in a registered direct offering priced at-the-market under Nasdaq rules. The purchase price per share and accompanying common stock warrant was $2.005 for the institutional investor and $2.325 for Eshelman Ventures, LLC. The purchase price per March Pre-Funded Warrant and accompanying Common Stock Warrant was $2.004 for the institutional investor. The net proceeds from the offering were $9.3 million, after deducting underwriting discounts, commission and offering expenses. The Common Stock Warrants issued to the institutional investor are exercisable immediately, will expire five years from the exercisable date and will have an exercise price of $1.88 per share. The Common Stock Warrants issued to Eshelman Ventures, LLC were exercisable upon the approval by our stockholders of the exercise of previously issued securities, which approval was obtained on April 1, 2022, will expire five years following the exercise date and will have an exercise price of $2.20 per share. We could receive additional gross proceeds of $9.4 million, if the Common Stock Warrants are fully exercised. The 1,665,025 Pre-Funded Warrants were exercised on June 6, 2022.

On October 27, 2022, we closed a private placement offering with new biotechnology investors, existing investors, our management and certain of our directors for the issuance and sale of an aggregate of 45,178,811 shares of our common stock, or pre-funded warrants in lieu thereof (the "October Pre-Funded Warrants" and together with the March Pre-Funded Warrants, the "Pre-Funded Warrants") and warrants (the "October Warrants" and together with the March Common Warrant, the "Warrants") to purchase up to an aggregate of 45,178,811 shares of common stock or pre-funded warrants (the "Private Placement") priced at-the-market under Nasdaq rules. The purchase price per share and accompanying warrant was $0.9199 for all investors who participated in the deal (or $0.9198 per pre-funded warrant and accompanying October Warrant). Fifty percent of the October Warrants have an exercise price of $0.7949 per share and will expire on the date that is the later of: (i) 15 months from the date an increase in the number of authorized shares of common stock is effected, or (ii) one month after the public announcement of the topline Phase 3 PROC data. The remaining 50% of the October Warrants have an exercise price of $0.7949 per share and will expire 30 months from the date an increase in the number of authorized shares of common stock is effected. All of the October Warrants other than the October Pre-funded warrants are exercisable for exchange of cash from the warrant holder. The net proceeds were approximately $40 million and will be used to fund our clinical development programs. Pursuant to the terms of the registration rights agreements that we entered into, we were required to file a registration statement registering the shares of common stock issued and the shares of common stock underlying the October Warrants and October Pre-funded Warrants, underlying the pre-funded warrant. The registration statement was filed on November 18, 2022 and declared effective by the SEC on November 28, 2022.





Financial overview



Revenue


To date, we have not generated any revenue from commercial sales of any of our product candidates. However, for the years ended December 31, 2022 and 2021, we generated approximately $9.1 million and $7.4 million from the 3D Medicine Agreement, which represents a portion of initial signing and milestone payments received from 3D Medicines that is recognized at the time of the receipt and a portion of the payments that is deferred and recognized over the PROC trial period.

In the future, we may generate revenue from a variety of sources, including product sales if we develop products which are approved for sale, license fees, milestones, research and development and royalty payments in connection with strategic collaborations or government contracts, or licenses of our intellectual property.

Research and development expenses

We recognize both internal and external research and development expenses as incurred. Our external research and development expenses consist primarily of:





  • the cost of acquiring and manufacturing clinical trial and other materials,
    including expenses incurred under agreements with contract manufacturing
    organizations;




  • expenses incurred under agreements with contract research organizations,
    investigative sites, and consultants that conduct our clinical trials;




  • other costs associated with development activities, including additional
    studies; and



Internal research and development costs consist primarily of salaries and related fringe benefit costs for our employees (such as workers' compensation and health insurance premiums), stock-based compensation charges and travel costs.

General and administrative expenses

General and administrative expenses consist principally of personnel-related costs, professional fees for legal, consulting, audit and tax services, rent and other general operating expenses not included in research and development.





Other income (expense), net


Other income (expense), net is primarily comprised of sublease income for our 1020 Marsh Facility lease, gains and losses on foreign currency transactions related to third party contracts with foreign-based contract manufacturing organizations and change in fair value of the warrant liability.







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Results of operations


Comparison of the years ended December 31, 2022 and 2021

The following table summarizes our net loss during the periods indicated (in thousands, except percentages):





                                          Year Ended
                                         December 31,                Increase/
                                      2022          2021            (Decrease)
Revenue:
Collaboration revenue               $   9,137     $   7,442     $  1,695         23 %
Operating expenses:
Research and development               66,938        37,541       29,397         78 %
General and administrative             13,036        10,550        2,486         24 %
Total operating expenses               79,974        48,091       31,883         66 %
Loss from operations                  (70,837 )     (40,649 )     30,188         74 %
Total other income (expense), net      (5,485 )       1,498       (6,983 )     -466 %
Net loss                            $ (76,322 )   $ (39,151 )   $ 37,171         95 %




Collaboration revenue


Collaboration revenue was approximately $9.1 million and $7.4 million for the years ended December 31, 2022 and 2021, respectively. The increase in revenue in 2022 compared to the same period in 2021 was driven primarily by increased expenditures related to the Phase 3 PROC trial, which drives the recognition of deferred revenue over the trial period.

Research and development expense

Research and development expense increased by $29.4 million, or 78%, to $66.9 million in 2022 from $37.5 million in 2021. The increase was primarily due to the continued progress of our clinical programs, including our Phase 3 trial of batiraxcept in PROC, our Phase 1b/2 trial of batiraxcept in ccRCC, and our Phase 1 trial of batiraxcept in pancreatic cancer. The continued advancement of our Phase 3 trial of batiraxcept in PROC is the most significant driver to the increase in expense in 2022 when compared to the same period in 2021. There were also significant increased CMC manufacturing activities during 2022 in order to prepare for our BLA filing at the end of 2023.

General and administrative expense

General and administrative expense increased by approximately $2.5 million, or 24%, to approximately $13.0 million in 2022 from approximately $10.6 million for the same period in 2021. The increase was primarily driven by higher salary expense, higher stock-based compensation expense, higher severance expense, and increased consulting fees.

Total other income (expense), net

Total other income (expense), net fluctuated by approximately $7.0 million, to approximately $5.5 million of total other expense, net in 2022 from approximately $1.5 million of total other income, net in 2021. The change relates to sublease income received from our subtenant for a full year in 2022, compared to only a part of the year in 2021, offset by an increase in the fair value of our warrant liability totaling approximately $9.0 million for 2022.





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Liquidity and Capital Resources

Since our inception and through December 31, 2022, we have financed our operations through private placements of our equity securities, public offerings of our equity securities, debt financing, CPRIT grant proceeds, sales of common stock through our at-the-market facility as well as payments received from license agreements. As of December 31, 2022, we had an accumulated deficit of approximately $616.1 million, primarily as a result of research and development and general and administrative expenses, and working capital of $35.9 million. As of December 31, 2022, we had cash and cash equivalents of approximately $53.7 million, a majority of which is invested in money market funds at several highly rated financial institutions.

During 2021 and 2022, our primary sources of funding have been milestone payments from 3D Medicines and proceeds from the sale of our common stock and other securities. In November 2020, June 2021 and August 2021, we received $12 million, $6 million and $3 million, respectively, in upfront and milestone payments from 3D Medicines pursuant to the 3D Medicines Agreement with them. In October 2022, we received a $6 million milestone payment from 3D Medicines. On February 18, 2021, we received approximately $21 million from the purchase by Eshelman Ventures of 2,875,000 shares of our common stock. On September 4, 2020, we entered into an equity distribution agreement (the "Equity Distribution Agreement") with Piper Sandler and Cantor Fitzgerald to sell shares of our common stock, from time to time, through an "at the market offering" program having an aggregate offering price of up to $60,000,000 through which Piper Sandler and Cantor Fitzgerald will act as sales agents. During the year ended December 31, 2021, we sold 1,432,627 shares of common stock for net proceeds of $9.8 million under the Equity Distribution Agreement. On January 5, 2022, we received approximately $9.9 million in net proceeds from the purchase by Eshelman Ventures, LLC of pre-funded warrants to purchase up to 4,545,455 shares of our common stock. In March 2022, we received approximately $9.3 million in net proceeds, in the aggregate, from the purchase by Eshelman Ventures, LLC and a single healthcare-focused institutional investor of 3,185,216 shares of our common stock, 1,665,025 March Pre-Funded Warrants and March Common Stock Warrants to purchase up to 4,850,241 shares of our common stock in a registered direct offering. In October 2022, we received approximately $40 million in net proceeds from a private placement offering from new biotechnology investors, existing investors, our management and certain of our Directors for the issuance and sale of an aggregate of 45,178,811 shares of our common stock (or October Pre-Funded Warrants in lieu thereof) and October Common Warrants to purchase up to an aggregate of 45,178,811 shares of common stock in a private placement offering priced at-the-market under Nasdaq rules. The purchase price per share and accompanying October Common Warrant was $0.9199 for all investors who participated in the deal (or $0.9198 per October Pre-Funded Warrant and accompanying October Common Warrant). During the year ended December 31, 2022, we sold 54,763 shares of common stock for net proceeds of $0.1 million under the Equity Distribution Agreement.

As of December 31, 2022, we had cash and cash equivalents of approximately $53.7 million. We believe that our existing cash and cash equivalents will be sufficient to sustain operations beyond our PROC Phase 3 top line results and into the fourth quarter of 2023 and that we will need to obtain additional financing in order to advance our clinical development program to later stages of development, build out our pipeline and fund operations beyond the fourth quarter of 2023. We intend to provide financing for the foregoing by seeking funds through equity or debt financings, collaborative or other arrangements with corporate sources, or through other sources of financing. These factors raised substantial doubt about our ability to continue as a going concern. The consolidated financial statements included in this Annual Report on Form 10-K do not include any adjustments relating to the recoverability of the recorded assets or the classification of liabilities that may be necessary should we be unable to continue as a going concern. Although management has been successful in raising capital in the past, there can be no assurance that we will be successful or that any needed financing will be available in the future at terms acceptable to us. Our failure to raise capital as and when needed could have a negative impact on our financial condition and our ability to complete clinical trials and pursue our business strategies. We anticipate that we will need to raise substantial additional capital, the requirements of which will depend on many factors, including:





  • the rate of progress, cost of our clinical studies and results of our clinical
    studies, including the need to conduct additional trials if requested by the
    FDA;




  • the timing of, and costs involved in, seeking and obtaining approvals from the
    FDA and other regulatory authorities;




  • the cost of preparing to manufacture on a larger scale;




  • the costs of commercialization activities if any future product candidate is
    approved, including product sales, marketing, manufacturing and distribution;




  • the degree and rate of market acceptance of any products launched by us or
    future partners;




  • the costs of filing, prosecuting, defending and enforcing any patent claims
    and other intellectual property rights;




  • our ability to enter into additional collaboration, licensing,
    commercialization or other arrangements and the terms and timing of such
    arrangements; and




  • the emergence of competing technologies or other adverse market developments.



If we are unable to raise additional funds when needed, or if funds are raised on terms that are not favorable to us, we may be required to delay, reduce, or terminate some or all of our development programs and clinical trials. We may also be required to sell or license our technologies or clinical product candidates or programs that we would prefer to develop and commercialize ourselves.





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Cash flows


The following table sets forth the primary sources and uses of cash and cash equivalents for each of the periods presented below:





                                                  Year Ended
                                                 December 31,
                                              2022          2021
                                                (In thousands)
Net cash (used in) provided by:
Operating activities                        $ (65,079 )   $ (32,177 )
Investing activities                              (11 )           -
Financing activities                           59,369        31,061

Net decrease in cash and cash equivalents $ (5,721 ) $ (1,116 )

Cash used in operating activities

Net cash used in operating activities was $65.1 million and $32.2 million during the years ended December 31, 2022 and 2021, respectively, which was primarily due to the use of funds in our operations related to the development of batiraxcept, our product candidate. Cash used in operating activities in 2022 increased compared to the year ended December 31, 2021 due primarily to the ramp up in our Phase 3 trial of batiraxcept in PROC along with continuing costs related to our trial of our second oncology indication, ccRCC and our third oncology indication, pancreatic adenocarcinoma. There were also significant increased CMC manufacturing activities during 2022 in order to prepare for our BLA filing at the end of 2023.

Cash used in investing activities

Net cash used in investing activities during the years ended December 31, 2022 and 2021 was $11 thousand and $0, respectively.

Cash provided by financing activities

Net cash provided by financing activities was $59.4 million and $31.1 million during the years ended December 31, 2022 and 2021, respectively. Financing activities related to the year ended December 31, 2022 included a registered direct offering of our securities with proceeds of $9.3 million, issuance of Pre-Funded Warrants with proceeds of $9.9 million, at the market offering proceeds of $0.1 million, and a private placement financing with net proceeds of approximately $40.0 million. Financing activities related to the year ended December 31, 2021 included a registered direct offering with proceeds of $20.9 million along with at the market offering proceeds of $9.8 million.

Critical Accounting Estimates

Our discussion and analysis of our financial condition and results of operations is based upon financial statements that we have prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP. The preparation of these financial statements requires management to make estimates and judgments that affect the reported amounts of assets, liabilities and expenses, and related disclosures. On an on-going basis, we evaluate these estimates, including those related to revenue recognition and estimated future research and development expenses, warrant liabilities and share-based compensation. Estimates are based on historical experience, information received from third parties and on various other assumptions 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. Historically, revisions to our estimates have not resulted in a material change to the financial statements.





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Collaboration Revenue


We enter into out-license and collaboration agreements under which we license certain rights to our product candidate to third parties and which to date are within the scope of ASC 606. The terms of these arrangements typically include payment to us of one or more of the following: non-refundable, up-front license fees; development, regulatory, and commercial milestone payments; payments for manufacturing supply services we provide through our contract manufacturers; and royalties on net sales of licensed products. Each of these payments may result in license, collaboration and other revenue, except for revenues from royalties on net sales of licensed products, which are classified as royalty revenues.

For elements of our collaboration agreements that are accounted for pursuant to ASC 606, we must develop assumptions that require judgment to determine whether the individual promises should be accounted for as separate performance obligations or as a combined performance obligation, and to determine the stand-alone selling price for each performance obligation identified in the contract. We use key assumptions to determine the stand-alone selling price, which may include forecasted revenues, development timelines, reimbursement rates for personnel costs, discount rates, and probabilities of technical and regulatory success. If the license to our intellectual property is determined to be distinct from the other performance obligations identified in an out-license and collaboration arrangement, we recognize revenue from non-refundable, up-front fees allocated to the license when the license is transferred to the customer and the customer is able to use and benefit from the license. For licenses that are bundled with other promises, we utilize judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring progress for purposes of recognizing revenue from non-refundable, up-front fees. With regard to the 3D Medicines collaboration agreements, we recognize revenue related to amounts allocated to the identified performance obligation on a proportional performance basis as the underlying services are performed.

The preceding estimates and judgments materially affect our recognition of collaboration revenues. Changes in our estimates of forecasted development costs could impact proportional performance percentages and could have a material effect on collaboration revenue recorded in the period in which we determine that change occurs.





Clinical Trial Accruals



Our clinical trial accruals are based on estimates of patient enrollment and related costs at clinical investigator sites as well as estimates for the services received and efforts expended pursuant to contracts with multiple research institutions and CROs that conduct and manage clinical trials on the Company's behalf.

Our estimates of preclinical and clinical trial expenses are based on the services performed, pursuant to contracts with research institutions and CROs that conduct and manage preclinical studies and clinical trials on our behalf. In accruing service fees, we estimate the time period over which services will be performed and the level of patient enrollment and activity expended in each period. If the actual timing of the performance of services or the level of effort varies from the estimate, we will adjust the accrual accordingly. Payments made to third parties under these arrangements in advance of the receipt of the related services are recorded as prepaid expenses until the services are rendered.

The preceding estimates and judgment materially affect our research and development expenses. Changes in our estimates of patient enrollment and related costs could have a material effect on our research and development expenses.





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Stock-based Compensation Expense

For purposes of calculating stock-based compensation, we estimate the fair value of share-based compensation awards using a Black-Scholes option-pricing model. The determination of the fair value of stock-based compensation awards utilizing the Black-Scholes model is affected by our stock price and a number of assumptions, including but not limited to expected stock price volatility over the term of the awards and the expected term of stock options.

If factors change and we employ different assumptions, share-based compensation expense may differ significantly from what we have recorded in the past. If there is a difference between the assumptions used in determining stock-based compensation expense and the actual factors which become known over time, we may change the input factors used in determining stock-based compensation expense for future grants. These changes, if any, may materially impact our results of operations in the period such changes are made. For actual forfeitures, we recognize the adjustment to compensation expense in the period the forfeitures occur.





Warrant Liability



The Company estimates the fair value of these liabilities using assumptions that are based on the individual characteristics of the warrants on the valuation date and reporting date. The Company uses the Black-Scholes option-pricing model and the fair value of the underlying stock adjusted for discount for lack of marketability, when applicable, to determine the fair value of these liabilities. The valuation model is based on inputs as of the valuation dates, including the estimated volatility of our stock, the remaining contractual term of the warrants and the risk-free interest rates and various other factors.

If factors change and we employ different assumptions, the warrant liability and other income/expense may differ significantly from what we have recorded in the past. If there is a difference between the assumptions used in determining the warrant liability and the actual factors which become known over time, we might change our inputs used in the valuation model. These changes, if any, may materially impact our results of operations in the period such changes are made.





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Additional Information


Refer to Note 2 to the condensed consolidated financial statements for more information on accounting pronouncements that have impacted or are expected to materially impact our consolidated financial condition, results of operations, or cash flows.

Recent Accounting Pronouncements

Recently issued accounting pronouncements that we have adopted or are currently evaluating are described in detail within "Note 2-Summary of Significant Accounting Policies" to the accompanying consolidated financial statements included elsewhere in this Annual Report on Form 10K.

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