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Consolidated Condensed Statements of Operations and Comprehensive Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended		281 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011
Costs and expenses:
General and administrative expenses	$ 5,744,142	$ 3,165,414	$ 15,148,228	$ 9,413,709	$ 55,013,310
Research and development costs	6,437,186	4,256,048	15,333,306	11,800,267	71,923,470
Total costs and expenses	12,181,328	7,421,462	30,481,534	21,213,976	126,936,780
Operating loss	(12,181,328)	(7,421,462)	(30,481,534)	(21,213,976)	(126,936,780)
Change in fair value of warrant liability, net	3,871,727	(2,111,543)	14,864,018	(10,164,567)	(5,834,584)
Interest income	537	2,949	1,202	6,824	2,872,481
Other income and interest expense	0	0	0	0	(274,226)
Net loss	(8,309,064)	(9,530,056)	(15,616,314)	(31,371,719)	(130,173,109)
Other comprehensive income (loss)	(3,000)	(3,000)	(14,000)	(4,000)	(40,200)
Total comprehensive loss	$ (8,312,064)	$ (9,533,056)	$ (15,630,314)	$ (31,375,719)	$ (130,213,309)
Common share data:
Basic and diluted loss per share	$ (0.18)	$ (0.24)	$ (0.35)	$ (0.83)
Weighted average number of shares of common stock outstanding, basic and diluted	46,961,123	39,712,207	44,315,838	37,703,577

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