CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Operating expenses:        
Research and development $ 27,518 $ 11,361 $ 48,389 $ 20,867
General and administrative 13,767 9,023 27,302 14,120
Total operating expenses 41,285 20,384 75,691 34,987
Loss from operations (41,285) (20,384) (75,691) (34,987)
Other income (expense):        
Change in fair value of preferred stock warrant liability   (1,718)   (1,761)
Interest expense (539) (89) (1,122) (172)
Interest income and other income, net 2,434 952 4,842 1,270
Total other income (expense), net 1,895 (855) 3,720 (663)
Net loss $ (39,390) $ (21,239) $ (71,971) $ (35,650)
Net loss per share, basic and diluted $ (0.50) $ (2.43) $ (0.92) $ (4.17)
Weighted average common shares outstanding, basic and diluted 78,396,714 8,727,392 77,972,757 8,542,362
Comprehensive loss:        
Net loss $ (39,390) $ (21,239) $ (71,971) $ (35,650)
Other comprehensive income (loss):        
Unrealized gains (losses) on investments, net of tax of $0 209 18 319 (27)
Comprehensive loss $ (39,181) $ (21,221) $ (71,652) $ (35,677)