Condensed Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Operating expenses:
Research and development	$ 14,401	$ 27,244	$ 53,864	$ 92,845
General and administrative	4,199	6,795	15,724	21,151
Impairment of long-lived assets	2,205		2,205
Total operating expenses	20,805	34,039	71,793	113,996
Loss from operations	(20,805)	(34,039)	(71,793)	(113,996)
Interest and other income, net	4,398	1,252	5,384	4,872
Net and comprehensive loss	$ (16,407)	$ (32,787)	$ (66,409)	$ (109,124)
Net loss per common share, basic	$ (0.27)	$ (0.91)	$ (1.45)	$ (3.03)
Net loss per common share, diluted	$ (0.27)	$ (0.91)	$ (1.45)	$ (3.03)
Weighted-average number of common shares used to compute basic net loss per common share	59,848,325	36,220,736	45,787,018	36,052,173
Weighted-average number of common shares used to compute diluted net loss per common share	59,848,325	36,220,736	45,787,018	36,052,173