This will be a randomized masked placebo-controlled single-center study to evaluate the effects of Dichloroacetate (DCA) versus placebo given in combination with Cisplatin and radiation treatment in patients with Stage III-IV Squamous Cell Carcinoma of the Head and Neck (SCCHN). Fifty subjects will be enrolled and randomly assigned on a 1:1 ratio to DCA or matching placebo given with standard of care treatment consisting of Cisplatin and radiation treatment.