Accrued Expenses (Tables)

6 Months Ended

Jun. 30, 2018

Accrued Expenses [Abstract]

Summary of accrued expenses

	June 30, 2018		December 31, 2017
Clinical trial expenses	$	1,588,393	$	1,011,666
Other		141,512		131,640
Total	$	1,729,905	$	1,143,306