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 appearing elsewhere in this Annual Report. Some of the information contained in this discussion and analysis or set forth elsewhere in this Annual Report, including information with respect to our plans and strategy for our business and related financing, includes forward-looking statements that involve risks and uncertainties. As a result of many factors, including those factors set forth in the "Risk Factors" section of this Annual Report, our actual results could differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis.

Overview

We are an innovative oncology company focused on the discovery and development of selective cancer therapies to treat patients across a range of solid tumors with significant unmet medical needs. We are rethinking drug development by seeking innovative, selective cancer therapies that can be matched to a patient's unique tumor characteristics.

Our lead product candidate, EO-3021 (also known as SYSA1801 or CPO102), is an antibody-drug conjugate ("ADC") designed to target Claudin 18.2, a clinically validated molecular target, which can selectively deliver a cytotoxic payload directly to cancer cells expressing Claudin 18.2. We currently retain worldwide development and commercialization rights for EO-3021 outside Greater China (the People's Republic of China, Hong Kong, Macau and Taiwan). Our licensor and partner, CSPC Pharmaceutical Group Limited (collectively with its affiliates, "CSPC"), is actively recruiting patients in its ongoing Phase 1 clinical trial of SYSA1801 (EO-3021) in China.

We are working to rapidly advance EO-3021 into the clinic in the United States and other territories outside Greater China across a range of solid tumor indications. We expect to present preclinical proof-of-concept data of EO-3021 at a major medical conference in the first half of 2023 and initiate a Phase 1 clinical trial of EO-3021 in the United States in the second half of 2023. An Investigational New Drug application ("IND") for EO-3021 has been cleared with the U.S. Food and Drug Administration (the "FDA"). EO-3021 was granted orphan drug designation by the FDA for the treatment of gastric cancer (including cancer of gastroesophageal junction) in November 2020 and for the treatment of pancreatic cancer in May 2021.

Claudin 18.2 is expressed across several solid tumor types, including many gastrointestinal cancers such as gastric, gastroesophageal junction and pancreatic cancer. Claudin 18.2 is also expressed in ovarian cancer, non-small cell lung cancer ("NSCLC") and other solid tumors. EO-3021 is an anti-Claudin 18.2 ADC that binds to Claudin 18.2 on the cell surface and is internalized, upon which the linker is cleaved in the lysosome to release the monomethyl auristatin E ("MMAE") payload, a potent anti-mitotic agent. This results in microtubule disruption, inhibiting cell division and promoting cancer cell death via apoptosis. MMAE has been clinically validated as an effective anti-tumor payload and is the cytotoxic component of several FDA-approved ADCs.

In July 2022, we entered into a license agreement with CSPC (the "CSPC License Agreement") to develop and commercialize EO-3021 outside Greater China. Pursuant to the terms of the CSPC License Agreement, we paid to CSPC a one-time, upfront payment of $27.0 million. CSPC will also be eligible to receive up to $148.0 million in potential development and regulatory milestone payments and up to $1.0 billion in potential commercial milestone payments plus royalties on net sales.

Additionally, in July 2022, we entered into a loan and security agreement (the "Loan Agreement") with K2 HealthVentures LLC (together with its affiliates, "K2HV", and together with any other lender from time to time party thereto, the "Lenders"), as administrative agent for the Lenders, and Ankura Trust Company, LLC, as collateral agent for the Lenders. The Loan Agreement provides up to $50.0 million principal in term loans (the "Term Loan") consisting of a first tranche of $30.0 million funded at closing and a subsequent second tranche of up to $20.0 million upon our request, subject to review by the Lenders of certain information from us and discretionary approval by the Lenders.

In January 2023, we announced that we have paused further investment in the clinical development of seribantumab, an anti-HER3 monoclonal antibody for solid tumors driven by neuregulin-1, or NRG1 fusions, a type of genomic alteration



                                       87

Table of Contents

and oncogenic driver in solid tumors. As a result, further enrollment in the Phase 2 CRESTONE study of seribantumab has been paused. Long-term follow-up of all patients who have been treated with seribantumab to date remains ongoing. We intend to pursue further clinical development of seribantumab only in collaboration with a partner. We plan to present additional interim clinical data from our Phase 2 CRESTONE clinical trial investigating the safety and efficacy of seribantumab in advanced solid tumors harboring an NRG1 fusion in the first half of 2023.

We are exploring opportunities through new or existing partnerships and business development opportunities to expand our novel oncology pipeline. This includes leveraging our value-driving partnerships with Caris Life Sciences ("Caris") and others.

We were incorporated in April 2019. We have devoted substantial resources to in-licensing and developing EO-3021, developing seribantumab, building our intellectual property portfolio, business planning, raising capital and providing general and administrative support for these operations. To date, we have financed our operations through private placements of convertible preferred stock, our IPO and a debt facility.

Since our inception, we have incurred significant operating losses on an aggregate basis. Our ability to generate product revenue sufficient to achieve profitability will depend on the successful development and eventual commercialization of one or more of our product candidates. Our net losses were $95.1 million and $32.0 million for the years ended December 31, 2022 and 2021, respectively. As of December 31, 2022, we had an accumulated deficit of $150.3 million. These losses have resulted primarily from costs incurred in connection with research and development activities, acquisition, patent investment, and general and administrative costs associated with our operations. We expect to continue to incur significant expenses and operating losses for at least the next several years.

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

? the progress, timing and results of preclinical studies and clinical trials for

EO-3021 and our other product candidates;

? disruptions or delays in enrollment of our clinical trials, including due to

the COVID-19 pandemic;

? the extent to which we develop, in-license or acquire other pipeline product

candidates or technologies;

the number and development requirements of other future product candidates that

? we may pursue, and other indications for our current product candidates that we

may pursue;

the costs, timing and outcome of obtaining regulatory approvals of EO-3021 and

? our other product candidates and any companion or complementary diagnostics we

may pursue;

the scope and costs of making arrangements with third-party manufacturers, or

? establishing manufacturing capabilities, for both clinical and commercial

supplies of our product candidates;

the costs involved in growing our organization to the size needed to allow for

? the research, development and potential commercialization of our current or

future product candidates;

? the costs associated with commercializing any approved product candidates,

including establishing sales, marketing and distribution capabilities;

? the costs associated with completing any post-marketing studies or trials

required by the FDA or other regulatory authorities;

? the revenue, if any, received from commercial sales of any of our product

candidates that receive marketing approval;




                                       88

  Table of Contents

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

? and enforcing our intellectual property rights and defending intellectual

property-related claims that we may become subject to, including any litigation

costs and the outcome of such litigation;

the costs associated with potential product liability claims, including the

? costs associated with obtaining insurance against such claims and with

defending against such claims; and

to the extent we pursue strategic collaborations, including collaborations to

commercialize seribantumab or to develop any future product candidates, our

? ability to establish and maintain collaborations on favorable terms, if at all,

as well as the timing and amount of any milestone or royalty payments we are

required to make or are eligible to receive under such collaborations, if any.

We will not generate revenue from product sales unless and until we successfully complete clinical development and obtain regulatory approval for our product candidates. If we obtain regulatory approval for any of our product candidates, we expect to incur significant expenses related to developing our internal commercialization capability to support product sales, marketing and distribution.

As a result, we will need additional financing to support our continuing operations. Until such time as we can generate significant revenue from product sales, if ever, we expect to finance our operations through a combination of public or private equity or debt financings or other sources, which may include collaborations with third parties. Adequate additional financing may not be available to us on favorable terms, or at all. In addition, we may seek additional capital due to favorable market conditions or strategic considerations even if we believe we have sufficient funds for our current or future operating plans. If we are unable to raise capital or debt when needed or on favorable terms, we could be forced to delay, reduce or eliminate our research and development programs, our commercialization plans or other operations.

Because of the numerous risks and uncertainties associated with product development, we are unable to predict the timing or amount of increased expenses or when or if we will be able to achieve or maintain profitability. Even if we are able to generate revenue from product sales, we may not become profitable. If we fail to become profitable or are unable to sustain profitability on a continuing basis, then we may be unable to continue our operations at planned levels and be forced to reduce or terminate our operations.

As of December 31, 2022, we had cash, cash equivalents and marketable securities of $90.3 million. We believe that our existing cash, cash equivalents and marketable securities will enable us to fund our operating expenses and capital expenditure requirements into the fourth quarter of 2024, without giving effect to financial covenant compliance under the Loan Agreement with K2HV. We have based this estimate on assumptions that may prove to be wrong, and we could exhaust our available capital resources sooner than we expect. See "Management's Discussion and Analysis of Financial Condition and Results of Operations - Liquidity and Capital Resources."

Impact of COVID-19

Since it was reported to have surfaced in December 2019, COVID-19 has spread across the world and has been declared a pandemic by the World Health Organization. Efforts to contain the spread of COVID-19 by the United States, Europe and Asia have included severe travel restrictions, social distancing requirements, stay-at-home orders and have delayed the commencement of non-COVID-19 related clinical trials, among other restrictions. As a result, the ongoing COVID-19 pandemic has presented a substantial public health and economic challenge around the world and is affecting our employees, patients, communities and business operations, as well as contributing to significant volatility and negative pressure on the U.S. economy and in financial markets.

COVID-19 precautions may directly or indirectly impact the timeline for our clinical trials. We are continuing to assess the potential impact of the COVID-19 pandemic on our current and future business and operations, including our expenses and clinical trials, as well as on our industry and the healthcare system.

The full extent to which the COVID-19 pandemic will directly or indirectly impact our business, results of operations and financial condition, including expenses, clinical trials and research and development costs, will depend on future



                                       89

  Table of Contents

developments that are highly uncertain, including as a result of new information that may emerge concerning COVID-19 and the actions taken to contain or treat COVID-19, as well as the economic impact on local, regional, national and international markets.

Components of our Results of Operations

Operating Expenses

Research and Development Expenses

Our operating expenses have consisted solely of research and development costs and general and administrative costs. Research and development expenses consist primarily of costs related to our research activities, including the development of our product candidates, and costs incurred for the in-licensing of EO-3021. Our research and development expenses include:

a one-time, upfront payment of $27.0 million paid to CSPC pursuant to the CSPC

? License Agreement for the exclusive rights to develop and commercialize EO-3021

in the Territory. Of this amount, $25.7 million was recorded as research and

development expense and $1.3 million was recorded as prepaid expense;

employee-related expenses, including salaries, related benefits, and

? stock-based compensation expense for employees engaged in research and

development activities;

external research and development expenses incurred in connection with the

? preclinical and clinical development of seribantumab, as well as the

preclinical development of EO-3021, including expenses incurred under

agreements with contract research organizations and consultants;

costs incurred with contract manufacturing organizations that manufacture drug

? products for use in our preclinical studies and clinical trials of

seribantumab;

? fees paid to consultants for services directly related to our product

development and regulatory efforts; and

? costs related to compliance with regulatory requirements related to conducting

our clinical activity.

Research and development costs consist of salaries and benefits, including associated stock-based compensation, and fees paid to other entities that conduct certain research and development activities on our behalf. Research and development costs are expensed as incurred. We estimate preclinical study and clinical trial expenses based on the services performed pursuant to contracts with research institutions and contract research organizations, and clinical manufacturing organizations that conduct and manage preclinical studies and clinical trials on our behalf based on actual time and expenses incurred by them. Further, we accrue expenses related to clinical trials based on the level of patient activity according to the related agreement. We monitor patient enrollment levels and related activity to the extent reasonably possible and adjust estimates accordingly.

To date, our research and development expenses have primarily been incurred to advance seribantumab and in-license EO-3021. We expect that significant additional spending will be required to advance EO-3021 and other product candidates through clinical development. These expenses will primarily consist of expenses for the administration of clinical studies as well as manufacturing costs for clinical material supply. At this time, we cannot reasonably estimate or know the nature, timing and costs of the efforts that will be necessary to complete the preclinical and clinical development of any of our product candidates.



                                       90

  Table of Contents

The following table provides a breakout of our research and development expenses by major categories of expense:



                                                             Year Ended December 31,
                                                               2022             2021         Change

                                                                  (in thousands)
Seribantumab                                               $     39,721     $     17,576    $ 22,145
EO-3021                                                          26,096                -      26,096
Unallocated and other research and development expenses           3,584            2,675         909
Personnel costs (including stock-based compensation)              9,316            3,344       5,972
Total research and development expenses                    $     78,717     $     23,595    $ 55,122

The successful development and commercialization of EO-3021 or our other product candidates is highly uncertain. The success of EO-3021 or any other product candidate will depend on several factors, including the following:

successful completion of preclinical studies and timely and successful

? enrollment of patients in, and completion of, clinical trials with favorable

results;

demonstration of safety, efficacy and acceptable risk-benefit profiles of our

? product candidates to the satisfaction of the FDA and other regulatory

agencies;

acceptance of an IND and a BLA by the FDA or other similar clinical trial

? applications by foreign regulatory authorities for clinical trials for our

product candidates;

our ability, or that of our collaborators, to develop and obtain clearance or

? approval of companion or complementary diagnostics, on a timely basis, or at

all;

receipt and related terms of marketing approvals from applicable regulatory

? authorities for our product candidates, including the completion of any

required post-marketing studies or trials;

? raising additional funds necessary to complete the clinical development of and

commercialization of our product candidates;

? successfully identifying and developing, acquiring or in-licensing additional

product candidates to expand our pipeline;

obtaining and maintaining patent, trade secret and other intellectual property

? protection and regulatory exclusivity for our product candidates, and

protecting and enforcing our rights in our intellectual property portfolio;

making arrangements with third-party manufacturers, or establishing

? manufacturing capabilities, for both clinical and commercial supplies of our

product candidates;

establishing sales, marketing and distribution capabilities and launching

? commercial sales of our products, if approved, whether alone or in

collaboration with third parties;

? acceptance of our products, if approved, by patients, the medical community and

third-party payors;

? effectively competing with other therapies available on the market or in

development;

? obtaining and maintaining third-party payor coverage and adequate

reimbursement; and

? maintaining a continued acceptable safety profile of any products following


   regulatory approval.


                                       91

  Table of Contents

Many of these factors are beyond our control, and it is possible that none of our product candidates will ever obtain regulatory approval even if we expend substantial time and resources seeking such approval. If we do not achieve one or more of these factors in a timely manner or at all, we could experience significant delays or an inability to successfully commercialize our product candidates, which would materially harm our business.

General and Administrative Expenses

General and administrative expenses consist primarily of salaries and other related costs, including stock-based compensation, for personnel in our executive and administrative functions. General and administrative expenses also include legal fees relating to patent and corporate matters; professional fees for accounting, auditing, tax and consulting services, and insurance costs.

We anticipate that our general and administrative expenses will increase in the future as we support our continued research activities and development of our product candidates. We also expect to incur increased expenses, including costs of accounting, audit, legal, investor and public relations, directors and officers insurance, and regulatory and tax related services associated with maintaining compliance with exchange listings and SEC requirements. In addition, if we obtain regulatory approval for any of our product candidates, we expect to incur significant expenses related to building a sales and marketing team to support product sales, and marketing and distribution activities, to the extent that such activities are not supported by one or more third-party collaborators.

Other Income (Expense)

Interest Income

Interest income consists of interest earned on our invested cash balances and associated with our marketable securities.

Interest Expense

Interest expense consists of interest expense on borrowings under the K2HV Loan Agreement, as well as amortization of debt discount and debt issuance costs.

Income Taxes

Since our inception, we have not recorded any income tax benefits for the net losses we have incurred each year or for our research and development tax credits, as we believe, based upon the weight of available evidence, that it is more likely than not that all of our net operating loss carryforwards and tax credits will not be realized. As of December 31, 2022, we had U.S. federal and state net operating loss carryforwards of $58.0 million and $4.5 million, respectively, which may be available to offset future income tax liabilities and can be carried forward indefinitely. As of December 31, 2022, we also had U.S. federal and state research and development tax credit carryforwards of $4.2 million and $0.5 million, respectively, which begin to expire in 2040. We have recorded a full valuation allowance against our net deferred tax assets at each balance sheet date.



                                       92

  Table of Contents

Results of operations

Comparison of the years ended December 31, 2022 and 2021:



The following table summarizes our results of operations for the years ended
December 31, 2022 and 2021:

                                  Year Ended December 31,
                                     2022            2021         Change

                                     (in thousands)
Operating expenses:
Research and development        $       78,717    $   23,595    $   55,122
General and administrative              15,832         8,451         7,381
Total operating expenses                94,549        32,046        62,503
Loss from operations                  (94,549)      (32,046)      (62,503)
Other income (expenses), net             (506)             7         (513)
Loss before income taxes              (95,055)      (32,039)      (63,016)
Income tax expenses                         25             -            25
Net loss                        $     (95,080)    $ (32,039)    $ (63,041)

Research and Development Expenses

Research and development expenses were $78.7 million for the year ended December 31, 2022, compared to $23.6 million for the year ended December 31, 2021. The increase of $55.1 million was primarily due to $27.0 million in cost related to the CSPC License Agreement for the exclusive rights to develop and commercialize EO-3021 outside Greater China, partially offset by $1.3 million was recorded as prepaid expense, a $20.5 million increase in costs related to manufacturing clinical supply of seribantumab for use in the CRESTONE clinical trial, a $6.0 million increase in employee related costs, including stock-based compensation, and an increase of $2.9 million in the expenses associated with the CRESTONE clinical trial, regulatory, consulting, and other expenses.

General and Administrative Expenses

General and administrative expenses were $15.8 million for the year ended December 31, 2022, compared to $8.5 million for the year ended December 31, 2021. The increase of $7.4 million was primarily due to an increase of $4.1 million in personnel costs, including stock-based compensation, an increase of $2.0 million in administrative costs including Directors and Officers insurance, and an increase of $1.3 million of professional fees and other consulting costs.

Other Income (Expense), Net

Other income (expense), net, was $0.5 million expense incurred for the year ended December 31, 2022, compared to less than $0.01 million for the year ended December 31, 2022.

Interest Income

Interest income of $1.0 million for the year ended December 31, 2022 was associated with our the balance of marketable securities. The Company did not hold any marketable securities as of December 31, 2021.

Interest Expense

Interest expense was $1.5 million for the year ended December 31, 2022 and consisted primarily of cash and non-cash interest related to the K2HV Loan Agreement, which was entered in July 2022.



                                       93

Table of Contents

Comparison of the Years Ended December 31, 2021 and 2020

A discussion of changes in our results of operations during the year ended December 31, 2021 compared to the year ended December 31, 2020 has been omitted from this Annual Report on Form 10-K, but may be found in "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for the year ended December 31, 2021, filed with the SEC on March 3, 2022, which discussion is incorporated herein by reference and which is available free of change on the SEC's website at http://www.sec.gov.

Liquidity and Capital Resources

Since our inception, we have not generated any revenue from product sales or any other sources and have incurred significant operating losses. We have not yet commercialized any products and we do not expect to generate revenue from sales of any product candidates for several years, if ever.

In July 2022, we entered into the Loan Agreement with K2HV, as administrative agent for the Lenders, and Ankura Trust Company, LLC, as collateral agent for the Lenders. The Loan Agreement provides up to $50.0 million principal in the Term Loan consisting of a first tranche of $30.0 million funded at closing and a subsequent second tranche of up to $20.0 million upon our request, subject to review by the Lenders of certain information from us and discretionary approval by the Lenders. As of December 31, 2022, we had drawn down the first tranche and received net proceeds of $29.5 million.

Cash Flows



The following table summarizes our sources and uses of cash for each of the
periods presented:

                                                          Year Ended December 31,
                                                             2022            2021

                                                               (in thousands)
Statement of cash flows data:
Cash used in operating activities                       $     (85,483)    $ (30,167)
Cash used in investing activities                             (44,398)             -
Cash provided by financing activities                           29,514        97,051

Net (decrease) increase in cash and cash equivalents $ (100,367) $ 66,884

Operating Activities

During the year ended December 31, 2022, cash used in operating activities was $85.5 million, which consisted primarily of our net loss of $95.1 million, partially offset by $6.3 million of cash used in changes in our operating assets and liabilities, $3.2 million of stock-based compensation expense and $0.1 million non-cash interest. Changes in our operating assets and liabilities consisted primarily of an increase of $6.2 million in accrued expenses, and an increase of $0.7 million accounts payable, due to the timing of payments related to research and development costs, partially offset by an increase of $0.6 million in prepaid expenses and other current assets, due to increased insurance related to operating as of public company.

During the year ended December 31, 2021, cash used in operating activities was $30.2 million, which consisted primarily of our net loss of $32.0 million, partially offset by $1.6 million of stock-based compensation expense and $0.2 million of cash used in changes in our operating assets and liabilities. Changes in our operating assets and liabilities consisted primarily of a decrease of $2.0 million in accrued expenses, due to the timing of payments related to research and development costs, partially offset by an increase of $1.7 million in prepaid expenses and other current assets, due to increased insurance due to operating as of public company.



                                       94

  Table of Contents

Investing Activities

During the year ended December 31, 2022, net investing activities consisted of $44.3 million of net cash investment in marketable securities and $0.1 million of purchases of property and equipment.

During the year ended December 31, 2021, there was no cash used in or provided by investing activities.

Financing Activities

During the year ended December 31, 2022, cash provided by financing activities was $29.5 million, due to $30.0 million of proceeds from issuance of long-term debt, partially offset by $0.5 million of payments of debt issuance costs.

During the year ended December 31, 2021, cash provided by financing activities was $97.1 million, which consisted of net proceeds from the issuance of common stock upon the completion of our IPO.

Funding Requirements

We expect our expenses to increase substantially in connection with our ongoing activities, particularly as we advance the preclinical activities and clinical trials for EO-3021 and seek to develop, acquire or in-license additional product candidates. The timing and amount of our operating expenditures will depend largely on:

? the timing and progress of preclinical and clinical development activities;

? successful enrollment in and completion of clinical trials;

? the timing and outcome of regulatory review of our product candidates;

? the cost to develop companion or complementary diagnostics as needed for each

of our product candidates;

our ability to establish agreements with third-party manufacturers for clinical

? supply for our clinical trials and, if any of our product candidates are

approved, commercial manufacturing;

? addition and retention of key research and development personnel;

our efforts to enhance operational, financial and information management

? systems, and hire additional personnel, including personnel to support

development of our product candidates;

the costs and timing of future commercialization activities, including product

? manufacturing, marketing, sales and distribution, for any of our product

candidates for which we obtain marketing approval;

? the legal patent costs involved in prosecuting patent applications and

enforcing patent claims and other intellectual property claims; and

? the terms and timing of any collaboration, license or other arrangement,

including the terms and timing of any milestone payments thereunder.

We believe our cash, cash equivalents and marketable securities of $90.3 million as of December 31, 2022 will enable us to fund our operating expenses and capital expenditure requirements into the fourth quarter of 2024, without giving effect to financial covenant compliance under the Loan Agreement with K2HV. We have based this estimate on assumptions that may prove to be wrong, and we could exhaust our available capital resources sooner than we expect.



                                       95

Table of Contents

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

? the progress, timing and results of preclinical studies and clinical trials for

EO-3021 and our other product candidates;

? disruptions or delays in enrollment of our clinical trials, including due to

the COVID-19 pandemic;

? the extent to which we develop, in-license or acquire other pipeline product

candidates or technologies;

the number and development requirements of other future product candidates that

? we may pursue, and other indications for our current product candidates that we

may pursue;

the costs, timing and outcome of obtaining regulatory approvals of EO-3021 and

? our other product candidates and any companion or complementary diagnostics we

may pursue;

the scope and costs of making arrangements with third-party manufacturers, or

? establishing manufacturing capabilities, for both clinical and commercial

supplies of our product candidates;

the costs involved in growing our organization to the size needed to allow for

? the research, development and potential commercialization of our current or

future product candidates;

? the costs associated with commercializing any approved product candidates,

including establishing sales, marketing and distribution capabilities;

? the costs associated with completing any post-marketing studies or trials

required by the FDA or other regulatory authorities;

? the revenue, if any, received from any product candidates that receive

marketing approval;

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

? and enforcing our intellectual property rights and defending intellectual

property-related claims that we may become subject to, including any litigation

costs and the outcome of such litigation;

the costs associated with potential product liability claims, including the

? costs associated with obtaining insurance against such claims and with

defending against such claims; and

to the extent we pursue strategic collaborations, including collaborations to

commercialize seribantumab or to develop any future product candidates, our

? ability to establish and maintain collaborations on favorable terms, if at all,

as well as the timing and amount of any milestone or royalty payments we are

required to make or are eligible to receive under such collaborations, if any.

We will not generate revenue from product sales unless and until we successfully complete clinical development and obtain regulatory approval for EO-3021 or our other product candidates. If we obtain regulatory approval for any of our product candidates, we expect to incur significant expenses related to developing our internal commercialization capability to support product sales, marketing and distribution.

Until such time as we can generate significant revenue from product sales, if ever, we expect to finance our operations through a combination of public or private equity or debt financings or other sources, which may include collaborations with third parties. Adequate additional financing may not be available to us on favorable terms, or at all. In addition, we may seek additional capital due to favorable market conditions or strategic considerations even if we believe we have sufficient funds for our current or future operating plans. If we are unable to raise capital or debt when needed or on favorable terms, we could be forced to delay, reduce or eliminate our research and development programs, our commercialization plans or other operations.



                                       96

  Table of Contents

Because of the numerous risks and uncertainties associated with product development, we are unable to predict the timing or amount of increased expenses or when or if we will be able to achieve or maintain profitability. Even if we are able to generate revenue from product sales, we may not become profitable. If we fail to become profitable or are unable to sustain profitability on a continuing basis, then we may be unable to continue our operations at planned levels and be forced to reduce or terminate our operations.

Contractual Obligations and Commitments

We enter into contracts in the normal course of business with various third parties for clinical trials, preclinical research studies and testing, manufacturing and other services and products for operating purposes. These contracts do not contain any minimum purchase commitments and provide for termination upon notice.

In May 2019, we entered into the Asset Purchase Agreement with the previous sponsor, pursuant to which we acquired all rights and interest to patents, know-how, and inventory for assets related to seribantumab. If we are successful in finding a partner to develop and commercialize seribantumab, we may be obligated to pay the previous sponsor up to $54.5 million in development, regulatory and sales milestone payments pursuant to the terms of the asset purchase agreement. Additionally, in conjunction with the asset purchase agreement with the previous sponsor, we assumed the rights and obligations under certain collaboration and license agreements which may require the payment of milestones and/or royalties on future sales of seribantumab. We are currently unable to estimate the timing or likelihood of achieving these milestones or generating future product sales. See "Business - Asset purchase, licensing and collaboration agreements" for additional information about these license agreements, including with respect to potential payments thereunder.

In July 2022, we entered into the Loan Agreement with K2HV, as administrative agent for the Lenders, and Ankura Trust Company, LLC, as collateral agent for the Lenders. The Loan Agreement provides up to $50.0 million principal in the Term Loan consisting of a first tranche of $30.0 million funded at closing and a subsequent second tranche of up to $20.0 million upon our request, subject to review by the Lenders of certain information from us and discretionary approval by the Lenders.

The Term Loan will mature on August 1, 2026, with interest only payments for 30 months, and bears a variable interest rate equal to the greater of (i) 7.95% and (ii) the sum of (A) the prime rate last quoted in The Wall Street Journal (or a comparable replacement rate, as determined by the Lenders, if The Wall Street Journal ceases to quote such rate) and (B) 3.20%. Upon the final payment under the Loan Agreement, the Lenders are entitled to an end of term charge equal to 6.45% of the aggregate original principal amount of the term loans made pursuant to the Loan Agreement. We may prepay, at our option, all, but not less than all, of the outstanding principal balance and all accrued and unpaid interest with respect to the principal balance being prepaid of the term loans, subject to a prepayment premium to which the Lenders are entitled and certain notice requirements.

Critical Accounting Policies and Significant Judgments and Estimates

Our management's discussion and analysis of financial condition and results of operations is based on our consolidated financial statements, which have been prepared in accordance with generally accepted accounting principles in the United States, or GAAP. The preparation of our consolidated financial statements and related disclosures requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, costs and expenses and the disclosure of contingent assets and liabilities in our consolidated financial statements. We base our estimates on known trends and events and various other factors that we believe are 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. We evaluate our estimates and assumptions on an ongoing basis. Our actual results may differ from these estimates under different assumptions or conditions.

While our significant accounting policies are described in more detail in the notes to our consolidated financial statements appearing at the end of this Annual Report, we believe that the following accounting policies are those most critical to the judgments and estimates used in the preparation of our consolidated financial statements.



                                       97

Table of Contents

Research and Development Costs and Accruals

Research and development costs consist of salaries and benefits, including associated stock-based compensation, and fees paid to other entities that conduct certain research and development activities on our behalf. Research and development costs are expensed as incurred. We estimate preclinical study and clinical trial expenses based on the services performed pursuant to contracts with research institutions and contract research organizations, and clinical manufacturing organizations that conduct and manage preclinical studies and clinical trials on our behalf based on actual time and expenses incurred by them. Further, we accrue expenses related to clinical trials based on the level of patient activity according to the related agreement. We monitor patient enrollment levels and related activity to the extent reasonably possible and adjusts estimates accordingly.

We account for nonrefundable advance payments for goods and services that will be used in future research and development activities as expenses when the services have been performed or when the goods have been received rather than when the payment is made.

Although we do not expect our estimates to be materially different from amounts actually incurred, our understanding of the status and timing of services performed relative to the actual status and timing of services performed may vary and may result in reporting amounts that are too high or too low in any particular period. To date, there have not been any material adjustments to our prior estimates of accrued research and development expenses.

Stock-Based Compensation Expense

We measure stock-based compensation expense at the accounting measurement date based on the fair value of the award and recognize the expense on a straight-line basis over the requisite service period of the award, which is typically the vesting period. Compensation expense is measured using the fair value of the award at the grant date and is adjusted to reflect actual forfeitures as they occur.

We estimate the fair value of stock options using the Black-Scholes option pricing model that takes into account the fair value of our common stock, the exercise price, the expected term of the option, the expected volatility of our common stock, expected dividends on our common stock, and the risk-free interest rate over the expected life of the option.

Expected term - We use the simplified method described in the Securities and Exchange Commission Staff Accounting Bulletin Topic 14.D.2 to calculate the expected term as we do not have sufficient historical exercise data to provide a reasonable basis upon which to estimate the expected term for options granted to employees.

Expected volatility - We estimate expected volatility based on the historical volatility of publicly traded peer companies and expect to continue to do so until such time as we have adequate historical data regarding the volatility of our traded stock price.

Risk-free interest rate - The risk-free rate assumption is based on the U.S. Treasury yield curves whose terms are consistent with the expected term of the stock options.

Expected dividend - We have not issued any dividends and do not expect to issue dividends over the life of the options. As a result, we have estimated the dividend yield to be zero.

We classify stock-based compensation expense in our statement of operations in the same manner in which the award recipient's payroll costs or service payments are classified.

© Edgar Online, source Glimpses