Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2023

Quarterly Financial Information Disclosure [Abstract]

Summary of Selected Quarterly Financial Data

The following tables provide the selected quarterly financial data for the years ended December 31, 2023 and 2022 (in thousands, except share and per share data):

	2023
	First			Second			Third			Fourth
	Quarter			Quarter			Quarter			Quarter
Statements of Operations Data:
Operating expenses:
Research and development	$	24,395		$	21,938		$	25,347		$	30,866
General and administrative		5,636			5,719			5,772		$	6,462
Total operating expenses		30,031			27,657			31,119			37,328
Loss from operations		(30,031	)		(27,657	)		(31,119	)		(37,328	)
Interest and other income, net		980			2,766			2,690		$	2,444
Net loss	$	(29,051	)	$	(24,891	)	$	(28,429	)	$	(34,884	)
Net loss per share, basic and diluted	$	(0.98	)	$	(0.70	)	$	(0.80	)	$	(0.98	)
Weighted-average number of common shares used to compute    basic and diluted net loss per common share		29,586,468			35,348,293			35,653,988			35,754,165

	2022
	First			Second			Third			Fourth
	Quarter			Quarter			Quarter			Quarter
Statements of Operations Data:
Operating expenses:
Research and development	$	11,350		$	12,582		$	18,242		$	20,539
General and administrative		5,050			4,892			5,242			5,737
Total operating expenses		16,400			17,474			23,484			26,276
Loss from operations		(16,400	)		(17,474	)		(23,484	)		(26,276	)
Interest and other income, net		34			216			594			962
Net loss	$	(16,366	)	$	(17,258	)	$	(22,890	)	$	(25,314	)
Net loss per share, basic and diluted	$	(0.56	)	$	(0.59	)	$	(0.78	)	$	(0.86	)
Weighted-average number of common shares used to compute    basic and diluted net loss per common share		29,126,088			29,196,398			29,319,042			29,441,596