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Segment Disclosures (Tables)

9 Months Ended

Sep. 30, 2025

Segment Disclosures [Abstract]

Schedule of Segment Loss from Operations

The following table summarizes the segment loss from operations, including significant segment expenses (in thousands):

		Three Months Ended September 30, 2025				Three Months Ended September 30, 2024				Nine Months Ended September 30, 2025				Period from February 6, 2024 (inception) to September 30, 2024
Research and development personnel-related (excluding stock-based compensation)		$	3,774			$	1,304			$	9,538			$	2,374
General and administrative personnel-related (excluding stock-based compensation)			1,945				1,206				5,356				3,131
Research and development stock-based compensation			8,341				7,772				14,712				8,310
General and administrative stock-based compensation			1,824				1,229				5,413				1,459
External research and development			15,581				15,908				45,607				37,926
Other research and development			1,292				707				3,143				947
General and administrative, excluding personnel-related and stock-based compensation			1,348				1,323				3,851				3,658
Total operating expenses		$	34,105			$	29,449			$	87,620			$	57,805
Loss from operations		$	(34,105	)		$	(29,449	)		$	(87,620	)		$	(57,805	)

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- Definition

Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-31

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-30

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X

- References

No definition available.

+ Details

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