Consolidated Statements of Net Loss and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
OPERATING EXPENSES
Research and development	$ 18,622	$ 12,511
General and administrative	8,125	3,742
Total operating expenses	26,747	16,253
Loss from operations	(26,747)	(16,253)
OTHER INCOME, NET
Interest and other income, net	568	319
NET LOSS	(26,179)	(15,934)
Other comprehensive income
Foreign currency translation	25	56
COMPREHENSIVE LOSS	$ (26,154)	$ (15,878)
Net loss per share attributable to common stockholders, basic and diluted	$ (0.66)	$ (0.47)
Weighted average common shares outstanding, basic and diluted	39,753,583	34,193,666

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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