Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 43,411	$ 8,266
Marketable securities	497,299	179,408
Prepaid expenses and other current assets	11,233	6,358
Accounts receivable - other	137	92
Total current assets	552,080	194,124
Property and equipment, net	63	69
Operating lease right-of-use assets	275	422
Other assets	53	19
Deferred offering costs		4,667
Total assets	552,471	199,301
Current liabilities:
Accounts payable	4,076	3,242
Success fee liability, current portion		352
Operating lease liabilities, current portion	225	217
Accrued expenses and other current liabilities	11,329	10,443
Total current liabilities	15,630	14,254
Success fee liability, non-current		13
Operating lease liabilities, net of current portion	71	244
Total liabilities	15,701	14,511
Commitments and contingencies
Stockholders' equity (deficit):
Common stock, $0.0001 par value per share; 700,000,000 and 493,530,000 shares authorized as of June 30, 2024 and December 31, 2023, respectively; 66,659,852 and 5,222,283 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	7
Additional paid-in capital	722,946	6,842
Accumulated deficit	(186,183)	(129,942)
Total stockholders' equity (deficit)	536,770	(123,100)
Total liabilities, redeemable convertible preferred stock and stockholders' equity (deficit)	$ 552,471	199,301
Series A-1 Redeemable Convertible Preferred Stock
Redeemable convertible preferred stock:
Redeemable convertible preferred stock		3,570
Series B Redeemable Convertible Preferred Stock
Redeemable convertible preferred stock:
Redeemable convertible preferred stock		10,000
Series C Redeemable Convertible Preferred Stock
Redeemable convertible preferred stock:
Redeemable convertible preferred stock		22,000
Series D Redeemable Convertible Preferred Stock
Redeemable convertible preferred stock:
Redeemable convertible preferred stock		47,300
Series E Redeemable Convertible Preferred Stock
Redeemable convertible preferred stock:
Redeemable convertible preferred stock		120,000
Series F Redeemable Convertible Preferred Stock
Redeemable convertible preferred stock:
Redeemable convertible preferred stock		$ 105,020