QUARTERLY FINANCIAL INFORMATION

12 Months Ended

Dec. 31, 2017

Disclosure Text Block [Abstract]

QUARTERLY FINANCIAL INFORMATION

	3 Months Ended
	March 31, 2017			June 30, 2017			September 30, 2017			December 31, 2017
License revenue	$	38,095		$	38,095		$	38,096		$	38,095
Total costs and expenses		27,704,517			28,463,466			31,623,323			31,072,826
Net loss	$	(27,727,509	)	$	(28,353,084	)	$	(31,535,652	)	$	(30,859,767	)
Basic and diluted net loss per common share	$	(0.52	)	$	(0.45	)	$	(0.48	)	$	(0.46	)

	3 Months Ended
	March 31, 2016			June 30, 2016			September 30, 2016			December 31, 2016
License revenue	$	38,095		$	38,095		$	38,096		$	38,095
Total costs and expenses		14,030,251			16,061,538			24,963,567			24,066,153
Net loss	$	(13,848,662	)	$	(15,899,062	)	$	(24,831,027	)	$	(23,674,143	)
Basic and diluted net loss per common share	$	(0.28	)	$	(0.33	)	$	(0.50	)	$	(0.48	)