Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 219,428	$ 244,979
Prepaid expenses and other current assets	4,591	2,313
Total current assets	224,019	247,292
Property and equipment, net	3,395	3,676
Operating lease right-of-use asset, net	3,085	3,300
Other assets	154	154
Total assets	230,653	254,422
Current liabilities:
Accounts payable and accrued expenses	15,754	18,424
Operating lease liabilities	1,432	1,389
Total current liabilities	17,186	19,813
Operating lease liabilities, less current portion	3,608	3,982
Liability to licensor	19,806	19,806
Total liabilities	40,600	43,601
Commitments and contingencies (Note 6)
Stockholders’ equity:
Preferred stock, $0.0001 par value; 200,000,000 shares authorized at March 31, 2022 and December 31, 2021; 0 shares issued and outstanding at March 31, 2022 and December 31, 2021		0
Common stock value	4	4
Additional paid-in capital	400,622	397,136
Accumulated deficit	(210,573)	(186,319)
Total stockholders’ equity	190,053	210,821
Total liabilities and stockholders’ equity	230,653	254,422
Class B Common Stock
Stockholders’ equity:
Common stock value