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Prepaid Expenses and Other Current Assets | 3 Months Ended
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Mar. 31, 2022
Prepaid Expense and Other Assets, Current [Abstract] |
Prepaid Expenses and Other Current Assets | 5. Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets consisted of the following (in thousands):
|  | March 31, 2022 |  |  | December 31, 2021 |
Prepaid insurance |  | $ | 1,919 |  |  | $ | 2,734 |
Prepaid research and development expenses |  |  | 4,155 |  |  |  | 1,754 |
Prepaid license agreements |  |  | 73 |  |  |  | 64 |
Other |  |  | 131 |  |  |  | 66 |
Prepaid expenses and other current assets |  | $ | 6,278 |  |  | $ | 4,618 |

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