Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Operating expenses:
Research and development	$ 62,203	$ 54,294	$ 125,232	$ 106,999
General and administrative	13,379	10,093	25,283	19,792
Total operating expenses	75,582	64,387	150,515	126,791
Loss from operations	(75,582)	(64,387)	(150,515)	(126,791)
Other income:
Interest income	2,373	5,393	5,325	9,450
Interest expense	(314)		(314)
Other income (expense), net	(6)	44	(11)	43
Total other income, net	2,053	5,437	5,000	9,493
Net loss	$ (73,529)	$ (58,950)	$ (145,515)	$ (117,298)
Net loss per share attributable to common stockholders, basic	$ (0.53)	$ (0.43)	$ (1.05)	$ (0.91)
Net loss per share attributable to common stockholders, diluted	$ (0.53)	$ (0.43)	$ (1.05)	$ (0.91)
Weighted average common shares outstanding, basic	114,466,080	99,240,030	114,463,810	97,022,345
Weighted average common shares outstanding, diluted	114,466,080	99,240,030	114,463,810	97,022,345
Comprehensive loss:
Net loss	$ (73,529)	$ (58,950)	$ (145,515)	$ (117,298)
Other comprehensive loss:
Net unrealized losses on marketable securities	(151)	(153)	(434)	(438)
Total other comprehensive loss	(151)	(153)	(434)	(438)
Comprehensive loss	$ (73,680)	$ (59,103)	$ (145,949)	$ (117,736)
Series A Non-Voting Convertible Preferred Stock [Member]
Other income:
Net loss per share attributable to common stockholders, basic	$ (132.95)	$ (107.98)	$ (263.08)	$ (228.63)
Net loss per share attributable to common stockholders, diluted	$ (132.95)	$ (107.98)	$ (263.08)	$ (228.63)
Weighted average common shares outstanding, basic	67,686	74,465	67,788	74,465
Weighted average common shares outstanding, diluted	67,686	74,465	67,788	74,465
Series B Non Voting Convertible Preferred Stock [Member]
Other income:
Net loss per share attributable to common stockholders, basic	$ (531.89)	$ (431.93)	$ (1,052.27)	$ (914.46)
Net loss per share attributable to common stockholders, diluted	$ (531.89)	$ (431.93)	$ (1,052.27)	$ (914.46)
Weighted average common shares outstanding, basic	6,868	18,621	6,868	12,626
Weighted average common shares outstanding, diluted	6,868	18,621	6,868	12,626