Dichloroacetic acid, often abbreviated DCA, is the chemical compound with formula CHCl2COOH. It is an acid, an analogue of acetic acid, in which two of the three hydrogen atoms of the methyl group have been replaced by chlorine atoms. The salts and esters of dichloroacetic acid are called dichloroacetates. Salts of DCA have been studied as potential drugs because they inhibit the enzyme pyruvate dehydrogenase kinase.
DCA has been effectively used for treating cancer. Cancer cells change the way cells metabolize oxygen in a way that promotes cancer cells' survival. In laboratory studies of isolated cancer cells grown in tissue culture, DCA restores the original metabolism, and promotes their self-destruction. This has led to the use of DCA for treating cancer, by individuals experimenting with it themselves, by doctors administering it to patients as a non-approved drug, by scientists testing it in cancer tissue cultures in cell culture and in mice, and in human Phase II studies. DCA has improved certain biochemical parameters, but it has not demonstrated improved survival.http://en.wikipedia.org/wiki/Dichloroacetic_acid
The cure was discovered by scientists at the University of Alberta, in Edmonton, Canada. The cure uses a dichloroacetate, a simple drug used to treat metabolic disorders. Because it's so simple, it had no side effects and also requires no patent. Therefore, it is relatively cheap (at least in comparison to current cancer treatments) and will actually cure cancer rather than warding it off.
Lost the link but might be able to find it?
I am not a doctor so don't take my word on it, just found it interesting.