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Prepaid Expenses and Other Current Assets | 9 Months Ended
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Sep. 30, 2021
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract] |
Prepaid Expenses And Other Current Assets |
(4) | Prepaid Expenses and Other Current Assets
Prepaid expenses and other current assets consist of the following:
|  | September 30, |  |  | December 31, |
|  | 2021 |  |  | 2020 |
Clinical trial expenses |  | $ | 1,630 |  |  | $ | 1,497 |
Insurance premiums |  |  | 154 |  |  |  | 845 |
Royalty receivable |  |  | 124 |  |  |  | - |
Other |  |  | 87 |  |  |  | 328 |
Total prepaid expenses and other current assets |  | $ | 1,995 |  |  | $ | 2,670 |

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