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Prepaid Expenses and Other Current Assets | 12 Months Ended
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Dec. 31, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Prepaid Expenses and Other Current Assets | 5. Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets consisted of the following:
|  | December 31, |
|  | 2023 |  |  | 2022 |
Prepaid clinical expenses |  | $ | 688 |  |  | $ | 5,836 |
Prepaid insurance expense |  |  | 678 |  |  |  | 377 |
Other |  |  | 329 |  |  |  | 1,049 |
|  | $ | 1,695 |  |  | $ | 7,262 |

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