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v3.21.2

Accrued expenses | 6 Months Ended
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Jun. 30, 2021
Accrued expenses |
Accrued expenses | 4. Accrued expenses Accrued expenses consisted of the following:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | June 30, 2021 |  | December 31, 2020 |
Deferred research obligations | ​ | ​ | 486 | ​ | ​ | — | ​
Compensation and related benefits | ​ | ​ | 653 | ​ | ​ | 845 | ​
Professional fees, contractors and other | ​ |  | 548 | ​ |  | 527 | ​
​ | ​ | $ | 1,687 | ​ | $ | 1,372 | ​
​

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