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Commitments and Contingencies | 12 Months Ended
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Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract] |
Commitments and Contingencies | 7. Commitments and Contingencies Leases At the inception of a contractual arrangement, the Company determines whether the contract contains a lease by assessing whether there is an identified asset and whether the contract conveys the right to control the use of the identified asset in exchange for consideration over a period of time. If both criteria are met, the Company calculates the associated lease liability and corresponding right-of-use asset upon lease commencement using a discount rate based on the rate implicit in the lease or an incremental borrowing rate commensurate with the term of the lease. Lease renewable options are included in the estimation of lease term when it is reasonably certain that the Company will exercise such options. The Company records lease liabilities within current liabilities or long-term liabilities based upon the length of time associated with the lease payments. The Company records its operating lease right-of-use assets as long-term assets. Leases with an initial term of 12 months or less are not recorded on the balance sheets. Instead, the Company recognizes lease expense for these leases on a straight-line basis over the lease term in the statements of operations. The Company leased laboratory, office and storage facilities in San Antonio, Texas, under operating lease agreements that expire in 2025. The Company also leased, through December 31, 2024, certain office space in Austin, Texas under a month-to-month operating lease agreement and certain office space in Charlottesville, Virginia (the “Charlottesville Lease”). The Company’s existing operating lease agreements generally provide for periodic rent increases, and renewal and termination options. The Company’s lease agreements do not contain any material variable lease payments, residual value guarantees or material restrictive covenants. The Charlottesville Lease has a term of 12 months and the Company has the ability to renew for three additional one-year periods. On March 31, 2023, Company believed that it was reasonably certain that the Charlottesville Lease will be renewed through March 31, 2026, and as a result, it remeasured the related lease liability as of March 31, 2023 to be $80,000 using the then-in-effect discount rate of 12.76%. Effective July 1, 2023, the Company added additional office lease premises in Charlottesville, which was accounted for as a separate operating lease contract with a lease liability and corresponding right-of-use asset of $19,000, at a discount rate of 13.47%. Certain leases require the Company to pay taxes, insurance, and maintenance. Payments for the transfer of goods or services such as common area maintenance and utilities represent non-lease components. The Company elected the package of practical expedients and therefore does not separate non-lease components from lease components. The Company’s operating lease liabilities and corresponding right-of-use assets are included in the balance sheets. As of December 31, 2024, the weighted average discount rate used to measure operating lease liabilities and the operating leases remaining term were 11.6% and 0.9 years, respectively. The table below summarizes the Company’s operating lease costs from its statements of operations, and cash payments from its statements of cash flows (in thousands).
|  | Year Ended December 31, |
|  |  | 2024 |  |  | 2023 |
Lease expense: |  |  |  |  |
Operating lease expense |  | $ | 145 |  | $ | 141 |
Total lease expense |  | $ | 145 |  | $ | 141 |
Cash payment information: |  |  |  |  |
Operating cash used for operating leases |  | $ | 180 |  | $ | 141 |
Total cash paid for amounts included in the measurement of lease liabilities |  | $ | 180 |  | $ | 141 |
Total rent expenses for each of the years ended December 31, 2024 and 2023 was $0.2 million, which includes leases in the table above, month-to-month operating leases, and common area maintenance charges. The Company’s future minimum annual lease payments under operating leases at December 31, 2024 are as follows (in thousands):
|  | Operating Leases |
2025 |  | $ | 69 |
2026 |  |  | 11 |
Total minimum lease payments |  |  | 80 |
Less: amount representing interest |  | $ | (5 | )
Present value of obligations under leases |  |  | 75 |
Less: current portion |  |  | 44 |
Noncurrent lease obligations |  | $ | 31 |
Manufacturing Agreement with SpectronRX On November 5, 2024, the Company entered into a manufacturing services agreement with SpectronRx for drug product development and manufacturing, which includes an initial commitment fee of $0.3 million. Under this agreement, the Company will own all rights to intellectual property related to the products developed, while SpectronRx retains rights to its own technology. SpectronRx is required to negotiate a commercial supply agreement upon six months' written notice before the Company's first commercial manufacturing needs. The agreement will remain in place for five years, automatically renewing for successive one-year terms unless terminated with six months' notice. During the year ended December 31, 2024, the Company did not recognize any expenses related to this agreement. Other Commitments and Contingencies The Company has entered into agreements with various research organizations for pre-clinical and clinical development studies, which have provisions for cancellation. Under the terms of these agreements, the vendors provide a variety of services including conducting research, recruiting and enrolling patients, monitoring studies and data analysis. Payments under these agreements typically include fees for services and reimbursement of expenses. The timing of payments due under these agreements is estimated based on current study progress. As of December 31, 2024, the Company did no t have any clinical research study obligations. The Company has entered into service and subscription-based agreements, which are recorded in accounts payable and accrued expenses, with an offsetting amount included in deferred costs within other current assets (see Note 6). Legal proceedings The Company is subject to various claims and contingencies related to legal proceedings. Due to their nature, such legal proceedings involve inherent uncertainties including, but not limited to, court rulings, negotiations between affected parties and governmental actions. Management assesses the probability of loss for such contingencies and accrues a liability and/or discloses the relevant circumstances, as appropriate.

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