STATEMENTS OF EXPENSES (USD $)	3 Months Ended		6 Months Ended		102 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011
Research and development	$ 854,208	$ 785,103	$ 1,539,369	$ 1,568,637	$ 68,378,206
General and administrative	560,834	595,424	1,152,892	1,079,849	26,355,698
Depreciation and amortization	70,732	48,729	100,366	98,375	1,236,595
Loss on disposal of assets					500,562
Operating loss	(1,485,774)	(1,429,256)	(2,792,627)	(2,746,861)	(96,471,061)
Interest income	260	395	471	580	1,357,956
Other income and expense, net					661,146
Gain on extinguishment of debt					1,612,440
Gain (loss) on derivative instruments					1,388,848
Gain on sale of technology					3,000,000
Interest expense	(870)	(392,121)	(2,005)	(497,196)	(9,055,829)
Net loss	$ (1,486,384)	$ (1,820,982)	$ (2,794,161)	$ (3,243,477)	$ (97,506,500)
Basic and diluted loss per share	$ (0.06)	$ (0.12)	$ (0.13)	$ (0.21)
Weighted average shares outstanding	23,048,488	15,827,353	22,007,955	15,569,623