March 31, 2024, compared to the three months ended March 31, 2023, as well as employee stock-based compensation expenses decrease of $0.5 million, which was primarily due to the full vesting of awards issued in prior periods.
Facilities and overheads increased in the three months ended March 31, 2024 compared to the 2023 period by $0.3 million. The main factor driving the increase is related to expenses related to our operating leases.
General and Administrative
General and administrative expenses were $3.2 million and $2.6 million for the three months ended March 31, 2024 and 2023, respectively. The increase of $0.6 million is primarily related to an increase of $ 0.3 million in legal, accounting and other consulting expenses, an increase of $0.1 million in lease expenses, and an increase in other facilities and overhead expenses of $0.2 million.
Interest Income
Interest income for the three months ended March 31, 2024, and 2023 was less than $0.1 million, and related to interest income on our cash balances.
Interest Expense
We recognized interest expense for the three months ended March 31, 2024, of $1.8 million related to the interest expenses and the amortization of debt discount and issuance costs for the 2023 Loan and 2024 Loan received from Innoviva in July 2023 and March 2024, respectively. Interest expense is accrued and is payable at the maturity of the 2023 Loan and the 2024 Loan in 2025.
Change in Fair Value of Convertible Debt
We recognized a loss on change in the fair value of the Convertible Loan for the three months ended March 31, 2024, and 2023 of $13.2 million and $3.2 million, respectively. The Convertible Loan received from Innoviva in January 2023 and amended in July 2023 is accounted at fair value using a weighted probability of various settlement scenarios of the Convertible Loan during its term discounted to each reporting date. Conversion option scenarios are valued using an option pricing model with significant assumptions and estimates such as volatility, expected term and risk-free interest rates.
Liquidity, Capital Resources and Financial Condition
We have incurred net losses since our inception and have negative operating cash flows. Our cash of $37.9 million as of March 31, 2024, will not be sufficient to fund our operations for the next 12 months from the date of issuance of our condensed consolidated financial statements for the three months ended March 31, 2024. We plan to control our expenses and to raise additional capital through a combination of public and private equity, debt financings, strategic alliances, and grant arrangements. These circumstances raise substantial doubt about our ability to continue as a going concern. While management believes this plan to raise additional funds will alleviate the conditions that raise substantial doubt, these plans are not entirely within its control and cannot be assessed as being probable of occurring. We may not be able to secure additional financing in a timely manner or on favorable terms, if at all.
During the year ended December 31, 2023, we received the convertible Loan in the aggregate amount of $30.0 million and the 2023 Loan in the aggregate amount of $25.0 million from Innoviva. The Convertible Loan and the 2023 Loan mature in January 2025, and principal and accrued interest are payable at maturity. The Convertible Loan provides for various conversion and repayment options, including the conversion of principal and accrued interest into shares of our Common Stock upon a Qualified Financing and the Company’s option to repay the Convertible Loan prior to maturity.
On March 4, 2024, we entered into the 2024 Credit Agreement for the 2024 Loan in an aggregate amount of $35.0 million with Innoviva. Concurrently with the execution of the 2024 Loan, we amended certain provisions of the