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Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Operating expenses        
Research and development $ 28,618 $ 16,397 $ 50,622 $ 34,589
General and administrative 7,572 5,909 15,228 11,823
Total operating expenses 36,190 22,306 65,850 46,412
Loss from operations (36,190) (22,306) (65,850) (46,412)
Interest income 242 129 441 234
Other income (expense), net (521) 59 (782) (171)
Net loss before provision for income taxes (36,469) (22,118) (66,191) (46,349)
Provision for income taxes 128   128  
Net Loss $ (36,597) $ (22,118) $ (66,319) $ (46,349)
Net loss per share - basic and diluted $ (1.04) $ (0.75) $ (1.89) $ (1.57)
Weighted-average common shares used to compute basic and diluted net loss per share 35,316 29,489 35,001 29,455