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Accrued Expenses | 12 Months Ended
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Dec. 31, 2022
Accrued Liabilities, Current [Abstract] |
Accrued Expenses | 8. Accrued Expenses Accrued expenses consisted of the following (in thousands):
|  | December 31, |
|  | 2022 |  |  | 2021 |
Accrued payroll and other employee benefits |  | $ | 2,975 |  |  | $ | 2,511 |
Clinical development |  |  | 3,253 |  |  |  | 2,627 |
Other accruals |  |  | 472 |  |  |  | 245 |
Non-clinical research |  |  | 465 |  |  |  | 432 |
Accrued interest |  |  | 74 |  |  |  | 71 |
Total accrued expenses |  | $ | 7,239 |  |  | $ | 5,886 |

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