Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Condensed Consolidated Statements of Operations and Comprehensive Loss
Collaboration revenue	$ 1,029	$ 2,364
Operating expenses:
In-process research and development	111,954
Research and development	15,369	3,913
General and administrative	6,005	2,922
Total operating expenses	133,328	6,835
Loss from operations	(132,299)	(4,471)
Interest income	2,807	201
Net loss	$ (129,492)	$ (4,270)
Per share information:
Net loss per share, Basic	$ (2.51)	$ (0.35)
Net loss per share, Diluted	$ (2.51)	$ (0.35)
Weighted-average shares outstanding, Basic	51,544,383	12,182,478
Weighted-average shares outstanding, Diluted	51,544,383	12,182,478
Comprehensive loss:
Net loss	$ (129,492)	$ (4,270)
Unrealized loss on marketable securities	(18)
Comprehensive loss	$ (129,510)	$ (4,270)