Accrued Expenses

12 Months Ended

Dec. 31, 2018

Accounts Payable And Accrued Liabilities Current [Abstract]

Accrued Expenses

5. ACCRUED EXPENSES

Accrued expenses consisted of the following at December 31, 2018 and 2017:

	December 31, 2018		December 31, 2017
Accrued license fees	$	1,567,368	$	817,578
Accrued payroll and payroll taxes		1,302,728		—
Accrued contract manufacturing		1,079,314		218,108
Accrued contract research		128,678		99,140
Accrued miscellaneous expenses		119,861		73,348
Accrued legal		111,543		174,592
Accrued audit and tax		102,000		111,250
Accrued pre-commercial costs		85,000		341,159
Accrued consulting		49,940		102,156
Total accrued expenses	$	4,546,432	$	1,937,331