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Prepaid Expenses and Other Current Assets | 9 Months Ended
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Sep. 30, 2021
Prepaid Expenses and Other Current Assets |
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): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | December 31,
​ | ​ | 2021 | ​ | 2020
Prepaid clinical trial costs | ​ | $ | 1,167 | ​ | $ | 1,148
Prepaid insurance |  | ​ | 318 |  | ​ | 1,663
Prepaid subscriptions and licenses | ​ | ​ | 318 | ​ | ​ | —
Prepaid research contracts | ​ | ​ | 199 | ​ | ​ | 432
Prepaid rent | ​ | ​ | 91 | ​ | ​ | 196
Other |  |  | 233 | ​ | ​ | 149
Total |  | $ | 2,326 | ​ | $ | 3,588
​

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