Accrued Expenses (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Clinical trial expenses	$ 2,655,845	$ 1,633,713
Other	135,666	156,976
Total	$ 2,791,511	$ 1,790,689

Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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