CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating expenses
Research and development	$ 17,205	$ 18,554
General and administrative	5,957	8,704
Total operating expenses	23,162	27,258
Loss from operations	(23,162)	(27,258)
Other income
Interest and other income, net	71	58
Total other income	71	58
Net loss	(23,091)	(27,200)
Other comprehensive loss
Unrealized loss on marketable securities	(489)	(1)
Comprehensive loss	$ (23,580)	$ (27,201)
Net loss per share, basic and diluted	$ (0.48)	$ (0.69)
Weighted average common shares outstanding, basic and diluted	48,123,930	39,679,734