Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating expenses:
Research and development	$ 16,093	$ 13,602
General and administrative	4,229	5,777
Total operating expenses	20,322	19,379
Loss from operations	(20,322)	(19,379)
Other (income) expense, net	(286)	(29)
Interest expense	1,030	477
Net loss and comprehensive loss	$ (21,066)	$ (19,827)
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.31)	$ (0.29)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.31)	$ (0.29)
Weighted-average number of common shares outstanding, basic (in shares)	67,716	67,716
Weighted-average number of common shares outstanding, diluted (in shares)	67,716	67,716