Accrued expenses

9 Months Ended

Sep. 30, 2021

Accrued expenses

Accrued expenses

4. Accrued expenses

Accrued expenses consist of the following:

	September 30,		December 31,
	2021		2020
Professional fees	$	168,485	$	224,424
Compensation and benefits		1,115,320		1,515,312
Research and development		4,424,556		8,158,302
Other		559,068		673,199
Total accrued expenses	$	6,267,429	$	10,571,237