CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating expenses
Research and development	$ 1,652,318	$ 3,793,022
General and administrative	2,276,784	1,048,020
Total operating expenses	3,929,102	4,841,042
Loss from operations	(3,929,102)	(4,841,042)
Other income (expense)
Change in fair value of derivative liabilities	0	(776,273)
Interest income	119	594
Interest expense	(14,749)	(695,469)
Other income (expense)	(87)	(416)
Total other income (expense)	(14,717)	(1,471,564)
Net loss	$ (3,943,819)	$ (6,312,606)
Net loss per share of common stock - basic and diluted (in USD per share)	$ (0.07)	$ (1.27)
Weighted average shares outstanding - basic and diluted (in shares)	52,627,228	4,960,552
Other comprehensive income (loss)
Foreign currency translation adjustment	$ 0	$ (282)
Comprehensive loss	$ (3,943,819)	$ (6,312,888)