We propose a single arm phase II clinical trial in 30 newly diagnosed GBM patients who will be treated with the standard chemo-radiotherapy with the addition of daily zinc. We will follow the toxicity, Progression free survival and overall survival of this group of patients. We hope to demonstrate the anti-tumor activity of zinc that will enhance the activity of temozolomide chemotherapy in adult glioblastoma patients. We will also follow the safety and monitor quality of life during treatment. In this study, we will compare results of patients receiving zinc to historical patient data. We will review patient portfolios with GB tumors that received treatment as the subjects in this study in the last five years before the study began. Collecting the data and separating the identified data from the file in a way that cannot be retrieved in any way will be done by a staff member from Dr Ruty Shai's laboratory who is authorized to open medical files. We will adjust the age and number of patients in each gender. Data collected: date of birth, age of disease development, gender, data after receiving treatment: Progression free survival and overall survival of this group of patients, side effects, and quality of life.
