Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses - Schedule of Accrued Expenses (Details)

v3.19.2
Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Payables and Accruals [Abstract]    
Accrued clinical operations and trials costs $ 11,935,501 $ 4,914,881
Accrued product development costs 4,073,377 2,222,093
Accrued compensation 2,100,531 2,253,621
Accrued other 947,209 460,596
Total $ 19,056,618 $ 9,851,191