CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
Revenue		$ 5,464	$ 33,193	$ 14,767
Operating expenses:
Research and development	$ 33,392	31,265	94,831	79,417
General and administrative	10,470	11,276	32,304	29,907
Total operating expenses	43,862	42,541	127,135	109,324
Loss from operations	(43,862)	(37,077)	(93,942)	(94,557)
Other income (expense), net	565	(430)	(1,305)	(1,328)
Net loss	$ (43,297)	$ (37,507)	$ (95,247)	$ (95,885)
Net loss per share, basic (in dollars per share)	$ (0.55)	$ (1.02)	$ (1.80)	$ (2.62)
Net loss per share, diluted (in dollars per share)	$ (0.55)	$ (1.02)	$ (1.80)	$ (2.62)
Weighted average common shares outstanding, basic (in shares)	79,336,161	36,683,026	52,958,447	36,549,833
Weighted average common shares outstanding, diluted (in shares)	79,336,161	36,683,026	52,958,447	36,549,833
Comprehensive loss:
Net loss	$ (43,297)	$ (37,507)	$ (95,247)	$ (95,885)
Other comprehensive income (loss):
Unrealized gain (loss) on marketable securities	(857)	(9)	(901)	2
Total other comprehensive income (loss)	(857)	(9)	(901)	2
Comprehensive loss	$ (44,154)	$ (37,516)	$ (96,148)	$ (95,883)