Accrued Expenses

3 Months Ended

Mar. 31, 2021

Accrued Expenses

Accrued Expenses

4. Accrued Expenses

Accrued expenses consisted of the following (in thousands):

	March 31,		December 31,
	2021		2020
Payroll and related costs	$	2,533	$	4,097
Clinical trials and drug development		6,645		2,452
Professional fees		1,158		927
Short-term lease liabilities		519		510
Other		99		532
Total accrued expenses	$	10,954	$	8,518