Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating activities
Net loss	$ (37,201)	$ (10,150)
Reconciliation of net loss to net cash used in operating activities:
Stock-based compensation	1,464	223
Accretion of premium and interest on marketable securities	10	0
Depreciation expense	9	10
Changes in operating assets and liabilities:
Prepaid expenses and other assets	1,963	453
Accounts payable	(4,353)	(4,992)
Accrued expenses	14,657	1,107
Net cash used in operating activities	(23,451)	(13,349)
Investing activities
Purchase of marketable securities	(85,245)	0
Proceeds from sales and maturities of marketable securities	16,300	0
Net cash used in investing activities	(68,945)	0
Financing activities
Proceeds from issuance of common stock upon initial public offering, net of issuance costs	0	91,977
Cash paid for issuance costs of convertible preferred stock	0	(11)
Proceeds from issuance of common stock upon stock option exercises	19	0
Common stock repurchase	25	0
Net cash (used in) provided by financing activities	(6)	91,966
(Decrease) increase in cash and cash equivalents	(92,402)	78,617
Cash and cash equivalents, beginning of period	146,284	79,400
Cash and cash equivalents, end of period	53,882	158,017
Supplemental disclosure of non-cash financing activities
Conversion of convertible preferred stock upon IPO	0	97,188
Deferred offering costs in accrued expenses	0	816
Common stock repurchase in accrued expenses	$ 25	$ 0