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Accrued expenses and other current liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
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Accrued expenses and other current liabilities: |  |
Accrued research and development | $ 6,530 | $ 10,064
Accrued compensation and benefits | 5,446 | 7,428
Other | 1,578 | 1,871
Total accrued expenses and other current liabilities | $ 13,554 | $ 19,363

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