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Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating expenses:
Research and development	$ 7,806	$ 4,697	$ 19,845	$ 14,054
General and administrative	3,057	1,985	8,612	6,287
Total operating expenses	10,863	6,682	28,457	20,341
Loss from operations	(10,863)	(6,682)	(28,457)	(20,341)
Other income (expense):
Interest and investment income	4	214	231	697
Other expense, net	(3)	(46)	(96)	(39)
Total other income, net	1	168	135	658
Net loss	$ (10,862)	$ (6,514)	$ (28,322)	$ (19,683)
Net loss per share - basic and diluted (in dollars per share)	$ (0.56)	$ (0.56)	$ (1.59)	$ (1.80)
Weighted-average common shares outstanding used in net loss per share - basic and diluted (in shares)	19,424,866	11,624,232	17,769,738	10,945,765

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