Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2025

Segment Reporting [Abstract]

Summary of Revenue Significant Expenses and Net Loss for Segment

The following table presents revenue, significant expenses and net loss for the Company's segment (in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2025			2024			2025			2024
Collaboration revenue	$	183		$	598		$	366		$	1,130
Operating expenses:
Clinical related costs		1,346			5,058			2,632			11,019
Employee related costs		3,074			5,451			6,149			14,926
Product development and manufacturing costs		176			1,415			309			2,898
Facilities, support costs and depreciation		2,669			3,708			5,341			7,773
Professional, consulting and public company costs		1,346			2,771			2,319			5,843
Impairment of property and equipment		—			1,883			—			1,883
Impairment of right-of-use assets		—			22,836			—			22,836
Restructuring and other related charges		398			6,450			1,283			6,450
Total operating expenses		9,009			49,572			18,033			73,628
Loss from operations		(8,826	)		(48,974	)		(17,667	)		(72,498	)
Other income:
Interest income		410			855			708			1,941
Other income:		981			—			981			—
Total other income		1,391			855			1,689			1,941
Loss before income tax expense		(7,435	)		(48,119	)		(15,978	)		(70,557	)
Income tax expense		(2	)		(12	)		(6	)		(26	)
Net loss	$	(7,437	)	$	(48,131	)	$	(15,984	)	$	(70,583	)