Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues
Collaborative revenue			$ 41,175,600
Total revenues			41,175,600
Expenses
Research and development	$ 4,638,614	$ 9,674,310	18,488,108	$ 29,600,119
General and administrative	3,451,667	4,607,462	13,541,253	13,897,497
Total expenses	8,090,281	14,281,772	32,029,361	43,497,616
(Loss) gain from operations	(8,090,281)	(14,281,772)	9,146,239	(43,497,616)
Foreign exchange losses	(27,496)	(4,766)	(40,549)	(17,797)
Investment income	5,164	324,535	159,908	1,249,739
Net (loss) income	$ (8,112,613)	$ (13,962,003)	$ 9,265,598	$ (42,265,674)
Net (loss) income per share, basic	$ (0.19)	$ (0.36)	$ 0.23	$ (1.08)
Weighted average shares outstanding, basic	41,917,923	39,025,471	40,199,196	39,006,561
Net (loss) income per share, diluted	$ (0.19)	$ (0.36)	$ 0.23	$ (1.08)
Weighted average shares outstanding, diluted	41,917,923	39,025,471	40,477,801	39,006,561