CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited) - 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	$ 8,582	$ 9,181	$ 24,720	$ 23,387
General and administrative	1,733	1,364	6,094	3,889
Total operating expenses	10,315	10,545	30,814	27,276
Loss from operations	10,315	10,545	30,814	27,276
Other income:
Other income, net	344	261	1,033	559
Net loss	(9,971)	(10,284)	(29,781)	(26,717)
Other comprehensive income/(loss)	15	(4)	17	(4)
Total comprehensive loss	$ (9,956)	$ (10,288)	$ (29,764)	$ (26,721)
Net loss per share, basic and diluted	$ (12.41)	$ (15.90)	$ (40.15)	$ (45.11)
Weighted average number of shares used in computing net loss per share, basic and diluted	803,229	646,800	741,711	592,237

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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