Prepaid Expenses and Other Current Assets

3 Months Ended

Mar. 31, 2022

Prepaid Expense and Other Assets, Current [Abstract]

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):

	March 31, 2022		December 31, 2021
Prepaid insurance	$	1,414	$	1,021
Prepayments to CROs		1,031		1,658
Prepaid maintenance		1,128		115
Prepayments to CMOs		31		1,884
Other prepaid expenses and current assets		45		31
Total prepaid expenses and other current assets	$	3,649	$	4,709