Balance Sheet Items

3 Months Ended

Mar. 31, 2022

Balance Sheet Related Disclosures [Abstract]

Balance Sheet Items

4.Balance Sheet Items

Prepaid Expenses and Other Current Assets

Prepaid and other current assets consisted of the following (in thousands):

	March 31, 2022		December 31, 2021
Prepaid insurance	$	874	$	2,099
Prepaid research and development expenses		3,365		1,945
Other prepaid expenses and other assets		398		1,015
Total prepaid expenses and other current assets	$	4,637	$	5,059

Property and Equipment, Net

Property and equipment, net, consisted of the following (in thousands):

	March 31, 2022			December 31, 2021
Furniture and fixtures	$	78		$	78
Leasehold improvements		14			15
Other property and equipment		15			—
Property and equipment, gross		107			93
Less: accumulated depreciation		(41	)		(36	)
Property and equipment, net	$	66		$	57

Depreciation expense for each of the three months ended March 31, 2022 and 2021 was immaterial.

Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following (in thousands):

	March 31, 2022		December 31, 2021
Accrued payroll related expenses	$	1,648	$	3,308
Accrued research and development expenses		4,171		2,565
Accrued professional service expenses		1,098		732
Other		387		104
Total accrued expenses and other current liabilities	$	7,304	$	6,709