Quarterly report pursuant to Section 13 or 15(d)

Prepaid Expenses and Other Current Assets (Details)

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Prepaid Expenses and Other Current Assets (Details) - USD ($)
Mar. 31, 2017
Dec. 31, 2016
Prepaid Expenses and Other Current Assets [Abstract]    
Prepaid insurance $ 247,278 $ 332,809
Prepaid clinical trial expenses 617,155 1,093,441
Other prepaid expenses 166,825 410,201
Total prepaid expenses and other current assets $ 1,031,258 $ 1,836,451