Liquidity and Going Concern	12 Months Ended
Dec. 31, 2023
Liquidity
Liquidity	2. Liquidity and Going Concern The Company has incurred significant operating losses since inception and has primarily relied on equity, debt and grant financing to fund its operations. As of December 31, 2023, the Company had an accumulated deficit of $308.8 million. The Company expects to continue to incur substantial losses, and its transition to profitability will depend on the successful development, approval and commercialization of product candidates and on the achievement of sufficient revenues to support its cost structure. The Company may never achieve profitability, and unless and until then, the Company will need to continue to raise additional capital. The existing cash and cash equivalents of $13.5 million as of December 31, 2023, together with a $35.0 million loan received from Innoviva in March 2024, will not be sufficient to fund its operations for the next 12 months from the date of these consolidated financial statements. These circumstances raise substantial doubt about the Company’s ability to continue as a going concern. The Company has prepared its consolidated financial statements on a going concern basis, which assumes that the Company will realize its assets and satisfy its liabilities in the normal course of business. The accompanying consolidated financial statements do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classifications of liabilities that may result from the outcome of the uncertainty concerning the Company’s ability to continue as a going concern. Recent Financing: 2024 Credit Agreement On March 4, 2024, the Company entered into a credit and security agreement (the “2024 Credit Agreement”) for a loan in an aggregate amount of $35.0 million with Innoviva SO. The 2024 loan bears interest at an annual rate of 14% and matures on June 4, 2025. Principal and accrued interest are payable at maturity. Repayment of the loan is guaranteed by the Company’s domestic subsidiaries, and the loan is secured by substantially all of the assets of the Company and the subsidiary guarantors. Concurrently with the execution of the 2024 loan, we amended certain provisions of the Convertible Loan and Credit Agreement to, among other things, conform certain terms relating to permitted indebtedness and permitted liens. 2023 Credit Agreement On July 10, 2023, the Company entered into a credit and security agreement (the “Credit Agreement”) for a loan in an aggregate amount of $25.0 million (the “Loan”) with Innoviva SO. The Loan bears interest at an annual rate of 14% and matures on January 10, 2025. Principal and accrued interest are payable at maturity. Repayment of the Loan is guaranteed by the Company’s domestic subsidiaries, and the Loan is secured by substantially all of the assets of the Company and the subsidiary guarantors. See Note 8, “Long Term debt”, for additional details. 2023 Convertible Credit Agreement On January 10, 2023, the Company entered into a secured convertible credit and security agreement (the “Convertible Credit Agreement”) with Innoviva SO. The Convertible Credit Agreement provides for a secured term loan facility in an aggregate amount of $30.0 million (the “Convertible Loan”), which bears interest at a rate of 8.0% per annum and was scheduled to mature on January 10, 2024. Concurrently with the execution of the Credit Agreement, the Company amended certain provisions of the Convertible Credit Agreement to, among other changes, extend the term of the Convertible Loan to January 10, 2025. Repayment of the Convertible Loan is guaranteed by the Company’s domestic subsidiaries and foreign material subsidiaries, and the Convertible Loan is secured by substantially all of the assets of the Company and the subsidiary guarantors. The Convertible Credit Agreement provides for various conversion and repayment options, including the conversion of principal and accrued interest into the shares of the Company’s Common Stock upon a Qualified Financing (as defined below) and the Company’s option to repay the loan prior to maturity. See Note 7, “Convertible debt”, for additional details. The Company plans to raise additional capital through equity offerings, debt financings, or other capital sources, including potential collaborations, licenses and other similar arrangements. While the Company believes this plan to raise additional funds will alleviate the conditions that raise substantial doubt about the Company’s ability to continue as a going concern, these plans are not entirely within its control and cannot be assessed as being probable of occurring. The Company’s ability to raise additional capital may be adversely impacted by potential worsening global economic conditions and the recent disruptions to, and volatility in, financial markets in the United States and worldwide. The Company may not be able to secure additional financing in a timely manner or on favorable terms, if at all. Furthermore, if the Company issues equity securities to raise additional funds, its existing stockholders may experience dilution, and the new equity securities may have rights, preferences and privileges senior to those of the Company’s existing stockholders. If the Company raises additional funds through collaboration, licensing or other similar arrangements, it may be necessary to relinquish valuable rights to its potential products on terms that are not favorable to the Company. If the Company is unable to raise capital when needed or on attractive terms, it would be forced to delay, reduce or eliminate its research and development programs or other operations. If any of these events occur, the Company’s ability to achieve the development and commercialization goals would be adversely affected.

Liquidity and Going Concern

12 Months Ended

Dec. 31, 2023

2. Liquidity and Going Concern

The Company has incurred significant operating losses since inception and has primarily relied on equity, debt and grant financing to fund its operations. As of December 31, 2023, the Company had an accumulated deficit of $308.8 million. The Company expects to continue to incur substantial losses, and its transition to profitability will depend on the successful development, approval and commercialization of product candidates and on the achievement of sufficient revenues to support its cost structure. The Company may never achieve profitability, and unless and until then, the Company will need to continue to raise additional capital. The existing cash and cash equivalents of $13.5 million as of December 31, 2023, together with a $35.0 million loan received from Innoviva in March 2024, will not be sufficient to fund its operations for the next 12 months from the date of these consolidated financial statements. These circumstances raise substantial doubt about the Company’s ability to continue as a going concern.

The Company has prepared its consolidated financial statements on a going concern basis, which assumes that the Company will realize its assets and satisfy its liabilities in the normal course of business. The accompanying consolidated financial statements do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classifications of liabilities that may result from the outcome of the uncertainty concerning the Company’s ability to continue as a going concern.

Recent Financing:

2024 Credit Agreement

On March 4, 2024, the Company entered into a credit and security agreement (the “2024 Credit Agreement”) for a loan in an aggregate amount of $35.0 million with Innoviva SO. The 2024 loan bears interest at an annual rate of 14% and matures on June 4, 2025. Principal and accrued interest are payable at maturity. Repayment of the loan is guaranteed by the Company’s domestic subsidiaries, and the loan is secured by substantially all of the assets of the Company and the subsidiary guarantors. Concurrently with the execution of the 2024 loan, we amended certain provisions of the Convertible Loan and Credit Agreement to, among other things, conform certain terms relating to permitted indebtedness and permitted liens.

2023 Credit Agreement

On July 10, 2023, the Company entered into a credit and security agreement (the “Credit Agreement”) for a loan in an aggregate amount of $25.0 million (the “Loan”) with Innoviva SO. The Loan bears interest at an annual rate of 14% and matures on January 10, 2025. Principal and accrued interest are payable at maturity. Repayment of the Loan is guaranteed by the Company’s domestic subsidiaries, and the Loan is secured by substantially all of the assets of the Company and the subsidiary guarantors. See Note 8, “Long Term debt”, for additional details.

2023 Convertible Credit Agreement

On January 10, 2023, the Company entered into a secured convertible credit and security agreement (the “Convertible Credit Agreement”) with Innoviva SO. The Convertible Credit Agreement provides for a secured term loan facility in an aggregate amount of $30.0 million (the “Convertible Loan”), which bears interest at a rate of 8.0% per annum and was scheduled to mature on January 10, 2024. Concurrently with the execution of the Credit Agreement, the Company amended certain provisions of the Convertible Credit Agreement to, among other changes, extend the term of the Convertible Loan to January 10, 2025. Repayment of the Convertible Loan is guaranteed by the Company’s domestic subsidiaries and foreign material subsidiaries, and the Convertible Loan is secured by substantially all of the assets of the Company and the subsidiary guarantors.

The Convertible Credit Agreement provides for various conversion and repayment options, including the conversion of principal and accrued interest into the shares of the Company’s Common Stock upon a Qualified Financing (as defined below) and the Company’s option to repay the loan prior to maturity. See Note 7, “Convertible debt”, for additional details.

The Company plans to raise additional capital through equity offerings, debt financings, or other capital sources, including potential collaborations, licenses and other similar arrangements. While the Company believes this plan to raise additional funds will alleviate the conditions that raise substantial doubt about the Company’s ability to continue as a going concern, these plans are not entirely within its control and cannot be assessed as being probable of occurring. The Company’s ability to raise additional capital may be adversely impacted by potential worsening global economic conditions and the recent disruptions to, and volatility in, financial markets in the United States and worldwide. The Company may not be able to secure additional financing in a timely manner or on favorable terms, if at all. Furthermore, if the Company issues equity securities to raise additional funds, its existing stockholders may experience dilution, and the new equity securities may have rights, preferences and privileges senior to those of the Company’s existing stockholders. If the Company raises additional funds through collaboration, licensing or other similar arrangements, it may be necessary to relinquish valuable rights to its potential products on terms that are not favorable to the Company. If the Company is unable to raise capital when needed or on attractive terms, it would be forced to delay, reduce or eliminate its research and development programs or other operations. If any of these events occur, the Company’s ability to achieve the development and commercialization goals would be adversely affected.