CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended	6 Months Ended	68 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011
Revenues	$ 0	$ 0	$ 0	$ 0	$ 0
Costs and Expenses:
Research and development	2,354,450	4,395,266	3,832,576	5,579,128	18,826,976
Purchased in-process research and development					28,156,502
General and administrative	1,524,402	1,419,019	3,422,028	2,617,302	16,321,028
Loss from Operations	(3,878,852)	(5,814,285)	(7,254,604)	(8,196,430)	(63,304,506)
Interest and investment income	20,003	27,724	44,067	60,964	232,545
Interest expense			(11,877)		(11,877)
Other Income					494,479
Change in fair value of derivative instruments-warrants	(697,660)		(1,036,375)		(739,591)
Loss from Continuing Operations	(4,556,509)	(5,786,561)	(8,258,789)	(8,135,466)	(63,328,950)
Loss from discontinued operations					(71,821)
Net Loss	$ (4,556,509)	$ (5,786,561)	$ (8,258,789)	$ (8,135,466)	$ (63,400,771)
Weighted Average Common Shares Outstanding Basic (in shares)	93,285,801	88,462,128	92,812,943	88,442,851
Weighted Average Common Shares Outstanding Diluted (in shares)	93,285,801	88,462,128	92,812,943	88,442,851
Net Loss per Common Share, Basic and Diluted (in dollars per share)	$ (0.05)	$ (0.07)	$ (0.09)	$ (0.9)

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.