Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Operating expenses:
Research and development	$ 2,964	$ 2,764
General and administrative	1,284	860
Total operating expenses	4,248	3,624
Loss from operations	(4,248)	(3,624)
Other income:
Interest income	16	35
Total other income	16	35
Net loss	(4,232)	(3,589)
Comprehensive loss	$ (4,232)	$ (3,589)
Net loss per share attributable to common stockholders—basic and diluted	$ (18.70)	$ (21.54)
Weighted-average common shares outstanding—basic and diluted	230,860	170,156

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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