Condensed Consolidated Statements of Cash Flows (Unaudited) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2025 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)
Cash flows from operating activities
Net loss	$ (32,733)	$ (81,144)	$ (70,513)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	200	846	941
Stock-based compensation		9,769	9,887
Change in fair value of warrant liability		463	67
Non-cash change in fair value of term loan		627	135
Debt issuance costs expensed under the fair value option		147
Impairment of long-lived assets	0	0	4,838
Non-cash lease expense		959	916
Other		264	678
Changes in operating assets and liabilities:
Prepaid expenses and other assets		401	(612)
Accounts payable		1,973	(1,416)
Accrued expenses and other liabilities		3,615	(1,527)
Deferred revenue		(4,288)	(6,311)
Net cash used in operating activities		(66,368)	(62,917)
Cash flows from investing activities
Purchase of property, plant and equipment		(488)	(376)
Other		131
Net cash used in investing activities		(357)	(376)
Cash flows from financing activities
Proceeds from issuance of common stock and pre-funded warrants from underwritten public offering, net of underwriting discounts and sales commissions and other offering costs		215,716	77,140
Prepayment of 2023 Trinity term loan		(40,612)
Proceeds from 2025 Trinity term loan, net		49,853
Debt issuance costs for term loan			(18)
Payment of shelf registration costs		(33)
Proceeds from common stock issuances under ESPP		159	89
Proceeds from stock option exercises		197	40
Other		(247)	(210)
Net cash provided by financing activities		225,033	77,041
Net increase in cash, cash equivalents and restricted cash		158,308	13,748
Cash, cash equivalents and restricted cash at the beginning of the period	299,944	141,636	146,540
Cash, cash equivalents and restricted cash at the end of the period	299,944	299,944	160,288
Cash and cash equivalents	297,344	297,344	157,688
Restricted cash	$ 2,600	2,600	2,600
Supplemental disclosure of cash flow information:
Cash paid for interest		3,949	3,980
Supplemental disclosure of noncash investing and financing activities:
Proceeds allocated to Success Fee liability		217
Property, plant and equipment in accounts payable and accrued expenses		41	133
Offering costs not yet paid		$ 25	$ 360