CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 92,487	$ 96,140
Short-term investments	37,886	27,769
Accounts receivable	12,120	7,733
Inventory	4,823	3,282
Prepaid commercial manufacturing	13,835	13,567
Prepaid expenses and other current assets	5,896	5,112
Total current assets	167,047	153,603
Inventory, non-current	40,124	25,064
Right-of-use assets	7,972	9,295
Property and equipment, net	1,102	1,223
Other assets	774	881
Total assets	217,019	190,066
Current liabilities:
Accounts payable	10,513	10,859
Accrued compensation and benefits	5,074	7,548
Current portion of long-term debt	26,880	26,711
Current portion of operating lease liability	3,998	3,894
Deferred revenue	5,545	4,211
Accrued expenses and other current liabilities	11,053	12,380
Total current liabilities	63,063	65,603
Operating lease liability, net of current portion	4,814	5,855
Deferred revenue, non-current	11,498	9,025
Deferred royalty obligation related to the sale of future royalties	12,223	11,254
Total liabilities	91,598	91,737
Commitments and contingencies (Note 14)
Stockholders’ equity:
Preferred stock, $0.0001 par value; 5,000,000 shares authorized; no shares issued and outstanding as of March 31, 2023 and December 31, 2022, respectively.	0	0
Common stock, $0.0001 par value; 300,000,000 shares authorized; 214,462,050 and 198,575,016 shares issued and outstanding as of March 31, 2023 and December 31, 2022, respectively.	21	20
Additional paid-in capital	932,330	878,500
Accumulated deficit	(806,910)	(780,137)
Accumulated other comprehensive loss	(20)	(54)
Total stockholders’ equity	125,421	98,329
Total liabilities and stockholders’ equity	$ 217,019	$ 190,066