Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Operating expenses:
Research and development (includes related party amounts of $130, $77, $538 and $1,800, respectively)	$ 12,263	$ 19,020	$ 36,505	$ 55,495
General and administrative (includes related party amounts of $14, $0, $30 and $0, respectively)	23,396	23,509	60,932	70,303
Total operating expenses	35,659	42,529	97,437	125,798
Loss from operations	(35,659)	(42,529)	(97,437)	(125,798)
Other income (expense):
Interest income	2,720	726	4,528	845
Interest expense	(10,107)	(9,277)	(28,939)	(17,703)
Other (expense), net	(197)	(11)	(174)	(20)
Total other expense	(7,584)	(8,562)	(24,585)	(16,878)
Net loss and comprehensive loss	$ (43,243)	$ (51,091)	$ (122,022)	$ (142,676)
Net loss per share, basic	$ (0.76)	$ (1.32)	$ (2.48)	$ (3.72)
Net loss per share, diluted	$ (0.76)	$ (1.32)	$ (2.48)	$ (3.72)
Weighted-average shares of common stock outstanding, basic	56,782,379	38,820,266	49,265,321	38,379,292
Weighted-average shares of common stock outstanding, diluted	56,782,379	38,820,266	49,265,321	38,379,292