A panel of FDA approved drugs will be tested by high throughput screening, which is CLIA certified allowing for clinical decisions based on the results, to identify a combination of up to 3 drug candidates for treating individual patients. Lead candidates will be evaluated by pharmacists and a team of physicians, to confirm that prescribed drugs do not utilize pharmacological/ metabolic pathways that are known to increase the likelihood of toxicity, prior to initiating treatment. Investigational drug therapy, targeting CSCs, will be initiated alongside standard of care chemoradiation with TMZ.