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CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Operating expenses:        
Research and development $ 8,287 $ 14,429 $ 35,091 $ 39,952
General and administrative 3,484 3,751 10,856 10,868
Restructuring charges 2,243   2,243  
Total operating expenses 14,014 18,180 48,190 50,820
Loss from operations (14,014) (18,180) (48,190) (50,820)
Other income, net 1,267 1,473 4,391 2,986
Net loss attributable to common stockholders $ (12,747) $ (16,707) $ (43,799) $ (47,834)
Net loss per share attributable to common stockholders, basic $ (0.43) $ (0.65) $ (1.47) $ (2.22)
Net loss per share attributable to common stockholders, diluted $ (0.43) $ (0.65) $ (1.47) $ (2.22)
Weighted-average number of shares used in computing net loss per share, basic 29,841,169 25,645,421 29,809,839 21,532,537
Weighted-average number of shares used in computing net loss per share, diluted 29,841,169 25,645,421 29,809,839 21,532,537
Other comprehensive loss:        
Unrealized gain (loss) on investments $ 139 $ (3) $ (163) $ 252
Comprehensive loss $ (12,608) $ (16,710) $ (43,962) $ (47,582)