Accrued expenses (Tables)

3 Months Ended

Mar. 31, 2021

Accrued expenses

Schedule of accrued expenses

	March 31,		December 31,
	2021		2020
Professional fees	$	531,973	$	224,424
Compensation and benefits		556,634		1,515,312
Research and development		6,088,253		8,158,302
Other		355,613		673,199
Total accrued expenses	$	7,532,473	$	10,571,237