Patients will receive DCA/placebo PO or per G-tube twice a day for 8 weeks. The first 6 patients of the total study population will represent a safety lead-in cohort. The results of the safety lead-in of DCA/placebo in combination with Cisplatin and radiation therapy will be evaluated after the 6th patient has completed 8 weeks of therapy. Recruitment of patients will be withheld during safety data analysis.