Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011
REVENUE:
GRANT INCOME AND OTHER	$ 106,543	$ 43,815	$ 111,567	$ 706,633
OPERATING EXPENSES:
Research and development (excluding R&D depreciation of $108,531, $119,633, $225,282 and $235,824 respectively, included below)	2,594,235	3,042,097	5,050,420	6,306,525
Depreciation and amortization	143,428	145,141	281,853	286,288
General and administrative	1,631,237	1,953,573	3,484,927	3,526,850
Total operating expenses	4,368,900	5,140,811	8,817,200	10,119,663
OPERATING LOSS	(4,262,357)	(5,096,996)	(8,705,633)	(9,413,030)
OTHER EXPENSES	0	(12,000,000)	0	(12,000,000)
(LOSS) GAIN ON DERIVATIVE INSTRUMENTS	(4,204,327)	3,062,087	(3,247,857)	1,115,692
INTEREST INCOME	28,673	46,707	57,728	99,586
INTEREST EXPENSE	(55,948)	(41,402)	(179,410)	(82,804)
NET LOSS	(8,493,959)	(14,029,604)	(12,075,172)	(20,280,556)
ISSUANCE OF ADDITIONAL SHARES DUE TO RESET PROVISIONS			(250,000)	0
MODIFICATION OF WARRANTS	0	(1,068,369)	(325,620)	(1,068,369)
INDUCEMENT WARRANTS	(1,593,000)	0	(1,593,000)	0
NET LOSS AVAILABLE TO COMMON SHAREHOLDERS	$ (10,086,959)	$ (15,097,973)	$ (14,243,792)	$ (21,348,925)
NET LOSS PER COMMON SHARE-BASIC	$ (0.04)	$ (0.07)	$ (0.06)	$ (0.10)
NET LOSS PER COMMON SHARE-DILUTED	$ (0.04)	$ (0.09)	$ (0.06)	$ (0.10)
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING-BASIC	247,369,587	207,089,841	237,912,177	206,090,265
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING-DILUTED	247,369,587	207,089,841	237,912,177	206,090,265