Cancer cells generally use glycolysis rather than respiration (oxidative phosphorylation) for energy (the Warburg effect), as a result of hypoxia that exists in tumors and damaged mitochondria.^[12] Usually dangerously damaged cells kill themselves via apoptosis, a mechanism of self-destruction that involves mitochondria, but this mechanism fails in cancer cells.

A study published in January 2007 by researchers at the University of Alberta,^[13] testing DCA on in vitro cancer cell lines and a rat model, found that DCA restored mitochondrial function, thus restoring apoptosis, killing cancer cells in vitro, and shrinking the tumors in the rats.^[14]

These results received extensive media attention, beginning with an article in New Scientist titled "Cheap, ‘safe’ drug kills most cancers".^[15] Subsequently, the American Cancer Society and other medical organizations have received a large volume of public interest and questions regarding DCA.^[16] Reports have since pointed out that although the study results are promising, no formal clinical trials in humans with cancer have yet been conducted in the USA and are not yet final in Canada, emphasizing the need for caution in interpreting the preliminary results.^[16][17]buy dca dichloroacetate dichloroacetate for sale
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Some doctors are treating cancer using DCA "off-label",^[18][19] which generates controversy in some circles.^[18] The off-label use of prescription drugs is common practice for cancer patients at the most prestigious medical institutions in the world, especially those diagnosed with cancers designated as orphan diseases, for which very few government-approved therapies are available.

Akbar and Humaira Khan have since March 2007 treated cancer patients using DCA off-label at their private clinic, Medicor Cancer Centres, in Toronto.^[20] They have treated several types of cancer and said on their web site that some patients "are showing varied positive responses to DCA including tumour shrinkage, reduction in tumour markers, symptom control, and improvement in lab tests".^[19] Although, they have not published their results nor reported it at medical conferences, they have uploaded details of patient responses and overall statistics on their web site.^[