STATEMENTS OF OPERATIONS (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
STATEMENTS OF OPERATIONS
Licensing Revenue (Note 13)	$ 0	$ 0	$ 2,000,000	$ 0
Operating expenses:
Research and development	4,964,022	3,439,302	9,312,658	6,714,597
General and administrative	1,281,984	1,025,369	2,497,267	2,324,487
Total operating expenses	6,246,006	4,464,671	11,809,925	9,039,084
Loss from operations	(6,246,006)	(4,464,671)	(9,809,925)	(9,039,084)
Other (expense) income:
(Loss) gain from valuation of common stock warrant liability	(586,171)	1,828,544	(417,860)	258,925
Interest income	97	13,953	564	22,150
Interest and dividend expense	(111,945)	(8,336)	(481,087)	(17,528)
Other expense	0	(5)	0	(19)
Total other (expense) income, net	(698,019)	1,834,156	(898,383)	263,528
Net Loss	$ (6,944,025)	$ (2,630,515)	$ (10,708,308)	$ (8,775,556)
Net loss per common share - basic and diluted (in dollars per share)	$ (0.42)	$ (0.22)	$ (0.72)	$ (0.72)
Weighted average shares outstanding - basic and diluted (In shares)	16,366,409	12,231,620	16,366,409	12,231,620
Weighted average shares outstanding for the period (in shares)	14,914,438	12,207,826	14,914,438	12,207,826