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Segment Information | 3 Months Ended
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Mar. 31, 2026
Segment Reporting [Abstract] |
Segment Information | Segment Information The Company has determined that it operates in a single reportable segment, which is the research and development of innovative drug candidates for the treatment of human cancer. Resources are allocated and performance is assessed by the Company's President and Chief Executive Officer, whom the Company has determined to be its Chief Operating Decision Maker (CODM). The CODM considers actual operating results on an annual basis or as needed on a consolidated basis, including consolidated net loss, when making decisions about allocating capital and personnel to the segment in the annual budgeting and forecasting process, which includes comparison of budget to actual and current period to prior period variances. The CODM assesses performance for the operating segment and decides, in part, how to allocate resources based on net loss that also is reported on the Condensed Consolidated Statement of Operations as net loss. The measure of segment assets is reported on the Condensed Consolidated Balance Sheets as total assets. The Company’s long-lived assets are located in the United States. In addition to the significant categories included within net loss presented on the Company's Condensed Consolidated Statement of Operations, the following table is representative of the significant expense categories for the three months ended March 31, 2026 and 2025, including a reconciliation to Net loss:
| Three Months Ended March 31, |  |
| 2026 |  | 2025 |  |  |  |
Revenues, net | $ | — |  |  | $ | 2,380 |  |  |  |  |
Direct research and development | 3,652 |  |  | 4,997 |  |  |  |  |
Research and development employee related | 2,499 |  |  | 3,130 |  |  |  |  |
General and administrative employee related | 1,767 |  |  | 1,884 |  |  |  |  |
Professional, legal, and consulting | 2,616 |  |  | 1,263 |  |  |  |  |
Change in fair value of warrant liability | 12,757 |  |  | — |  |  |  |  |
Other segment items (1) | 908 |  |  | 1,722 |  |  |  |  |
Net loss | $ | 24,199 |  |  | $ | 10,616 |  |  |  |  |
(1) Other segment items for the three months ended March 31, 2026 include facility related costs, insurance costs, and interest income. Other segment items for the three months ended March 31, 2025 include cost of royalties, facility related costs, insurance costs, expense related to the sale of future royalties, and interest income.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-21 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name 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