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Accrued Expenses and Other Current Liabilities | 6 Months Ended
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Jun. 30, 2022
Payables and Accruals [Abstract] |
Accrued Expenses and Other Current Liabilities | Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities as of June 30, 2022 and December 31, 2021 were comprised as follows (in thousands):
| June 30, 2022 |  | December 31, 2021
Manufacturing | $ | 5,452 |  | $ | 3,427
Contract research | 2,258 |  | 2,542
Employee compensation and benefits | 1,938 |  | 2,200
Professional fees | 1,855 |  | 433
Leasehold improvements | 1,295 |  | —
Success payment liability | 863 |  |  | — |
Other | 429 |  |  | 163 |
Total accrued expenses and other current liabilities | $ | 14,090 |  | $ | 8,765

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