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STATEMENTS OF OPERATIONS - USD ($)
 12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2014
Income Statement [Abstract]      
GRANT INCOME AND OTHER $ 285,055 $ 657,377 $ 264,033
OPERATING EXPENSES:      
Research and development 19,351,779 21,098,147 17,172,587
General & administrative 6,486,501 13,855,775 10,665,558
Total operating expenses 25,838,280 34,953,922 27,838,145
OPERATING LOSS (25,553,225) (34,296,545) (27,574,112)
GAIN ON DERIVATIVE INSTRUMENTS 14,013,726 282,616 248,767
LOSS ON DEBT EXTINGUISHMENT 0 (620,457) 0
INTEREST INCOME (EXPENSE), net 73,001 (40,260) (40,920)
NET LOSS (11,466,498) (34,674,646) (27,366,265)
ISSUANCE OF ADDITIONAL SHARES DUE TO RESET PROVISIONS 0 0 (1,117,447)
NET LOSS AVAILABLE TO COMMON SHAREHOLDERS $ (11,466,498) $ (34,674,646) $ (28,483,712)
NET LOSS PER COMMON SHARE      
BASIC $ (0.09) $ (0.42) $ (0.48)
DILUTED $ (0.09) $ (0.42) $ (0.49)
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING      
BASIC and DILUTED 121,655,108 82,519,027 58,804,622