STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating expenses:
Research and development	$ 92,889	$ 86,778
General and administrative	30,651	26,957
Total operating expenses	123,540	113,735
Loss from operations	(123,540)	(113,735)
Other income, net	8,102	2,041
Net loss	$ (115,438)	$ (111,694)
Per share information:
Net loss per share of common stock, basic	$ (2.44)	$ (2.43)
Net loss per share of common stock, diluted	$ (2.44)	$ (2.43)
Weighted average common shares outstanding, basic	47,371,589	46,049,763
Weighted average common shares outstanding diluted	47,371,589	46,049,763
Comprehensive loss
Net loss	$ (115,438)	$ (111,694)
Unrealized gain (loss) on marketable securities, net of tax	(981)	(711)
Comprehensive loss	$ (116,419)	$ (112,405)