Consolidated Balance Sheets - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 53,199	$ 162,752
Grant receivable		48,000
Deferred and capitalized financing costs	$ 3,429	85,702
Prepaid expenses, including current portion of long-term prepaid insurance of $14,945 at December 31, 2015 and 2014	29,144	24,219
Total current assets	85,772	320,673
Equipment, net of accumulated depreciation of $8,776 and $1,659 at December 31, 2015 and 2014, respectively	12,121	16,741
Long-term prepaid insurance, net of current portion of $14,945 at December 31, 2015 and 2014	47,949	62,894
Total assets	145,842	400,308
Current liabilities:
Accounts payable and accrued expenses, including $111,688 and $108,375 payable to related parties at December 31, 2015 and 2014, respectively	1,434,429	1,845,875
Accrued compensation and related expenses	$ 710,409	144,000
Unearned grant revenues		34,333
10% convertible notes payable, including accrued interest of $61,388 and $4,093, net of unamortized discounts of $342,932 and $323,350 at December 31, 2015 and 2014, respectively	$ 297,956	50,243
Note payable to related party, including accrued interest of $171,257 and $122,618 at December 31, 2015 and 2014, respectively	561,568	$ 526,257
Other short-term note payable, including accrued interest of $8	3,689
Total current liabilities	$ 3,008,051	$ 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: 489,846,883 and 232,145,326 at December 31, 2015 and 2014, respectively	$ 489,847	$ 232,145
Additional paid-in capital	144,647,529	138,984,110
Accumulated deficit	(148,279,854)	(142,311,095)
Total stockholders' deficiency	(2,862,209)	(2,200,400)
Total liabilities and stockholders' deficiency	145,842	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	$ 258,566	$ 872,737