Accrued Expenses

6 Months Ended

Jun. 30, 2022

Accrued Liabilities, Current [Abstract]

Accrued Expenses

8. Accrued Expenses

Accrued expenses consist of the following as of June 30, 2022 and December 31, 2021 (in thousands):

	June 30, 2022		December 31, 2021
Research and development expenses	$	15,700	$	15,169
Payroll and payroll-related		3,745		6,033
Professional fees		1,654		1,417
Other		639		352
Accrued expenses	$	21,738	$	22,971