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Condensed Statements of Operations and Comprehensive Loss (Unaudited) - 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 $ 7,109 $ 2,286 $ 11,934 $ 4,699
General and administrative 2,466 357 3,716 704
Total operating expenses 9,575 2,643 15,650 5,403
Loss from operations (9,575) (2,643) (15,650) (5,403)
Interest income 513 81 907 81
Interest expense   (358)   (957)
Change in fair value of derivative liability   (188)   (206)
Net loss (9,062) (3,108) (14,743) (6,485)
Other comprehensive loss:        
Unrealized gain on available for sales securities 103   129  
Total comprehensive loss $ (8,959) $ (3,108) $ (14,614) $ (6,485)
Net loss per share - basic and diluted $ (0.57) $ (0.93) $ (1.52) $ (1.93)
Weighted average shares of common stock outstanding - basic and diluted 15,849,189 3,360,109 9,719,173 3,360,049