Condensed Consolidated Balance Sheets - USD ($)	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 154,152	$ 162,752
Grant receivable	28,583	48,000
Capitalized financing Costs	77,030	85,702
Prepaid insurance, including current portion of long-term prepaid insurance of $14,945 at March 31, 2015 and December 31, 2014	58,824	24,219
Total current assets	318,589	320,673
Equipment, net of accumulated depreciation of $3,561 and $1,659 at March 31, 2015 and December 31, 2014, respectively	17,336	16,741
Long-term prepaid insurance, net of current portion of $14,945 at March 31, 2015 and December 31, 2014	59,158	62,894
Total assets	395,083	400,308
Current liabilities:
Accounts payable and accrued expenses, including $95,000 and $108,375 payable to related parties at March 31, 2015 and December 31, 2014, respectively	2,173,254	1,845,875
Accrued compensation and related expenses	18,500	144,000
Unearned grant revenue	12,382	34,333
10% convertible notes payable, including accrued interest of $16,715 and $4,093, net of unamortized discount of $367,354 and $323,350, at March 31, 2015 and December 31, 2014, respectively	228,861	50,243
Note payable to related party, including accrued interest of $134,611 and $122,618 at March 31, 2015 and December 31, 2014, respectively	534,060	$ 526,257
Other short-term note payable, including accrued interest of $77	36,202
Total current liabilities	3,003,259	$ 2,600,708
Commitments and contingencies (Note 9)
Stockholders' deficiency:
Common stock, $0.001 par value; shares authorized: 1,400,000,000; shares issued and outstanding: 240,819,176 and 232,145,326 at March 31, 2015 and December 31, 2014, respectively	240,819	$ 232,145
Additional paid-in capital	139,320,936	138,984,110
Accumulated deficit	(143,042,245)	(142,311,095)
Total stockholders' deficiency	(2,608,176)	(2,200,400)
Total liabilities and stockholders' deficiency	395,083	400,308
Series B Convertible Preferred Stock [Member]
Stockholders' deficiency:
Preferred stock value	21,703	21,703
Series G 1.5% Cumulative Mandatorily Convertible Preferred Stock [Member]
Stockholders' deficiency:
Preferred stock value	$ 850,611	$ 872,737