Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses - Schedule of Accrued Expenses (Details)

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Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($)
Mar. 31, 2018
Dec. 31, 2017
Payables and Accruals [Abstract]    
Accrued clinical operations and trials costs $ 3,267,875 $ 2,003,799
Accrued product development costs 1,484,701 1,255,439
Accrued compensation 577,116 1,335,672
Accrued other 568,582 146,609
Total $ 5,898,274 $ 4,741,519