Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Operating expenses:
Research and development	$ 40,148	$ 18,857	$ 100,807	$ 29,411
In process research and development		8,261	2,000	49,659
General and administrative	9,838	22,906	27,544	30,116
Total operating expenses	49,986	50,024	130,351	109,186
Loss from operations	(49,986)	(50,024)	(130,351)	(109,186)
Other income, net	1,486	622	4,742	1,011
Net loss	(48,500)	(49,402)	(125,609)	(108,175)
Other comprehensive income:
Unrealized gain (loss) on marketable securities, net of tax	(168)	232	389	235
Other comprehensive income (loss)	(168)	232	389	235
Comprehensive loss	$ (48,668)	$ (49,170)	$ (125,220)	$ (107,940)
Net loss per share, basic and diluted	$ (0.80)	$ (7.69)	$ (2.39)	$ (17.64)
Weighted average common shares outstanding, basic and diluted	60,755,872	6,423,397	52,535,569	6,133,911

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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