Potential usefulness of radiosensitizers in glioblastoma.

High-grade glioma continues to impart poor prognosis in spite of maximal treatment. Attempted gross total surgical resection followed by concurrent temozolomide and radiation therapy has become standard of care for glioblastoma. Ongoing clinical efforts have been directed at the further development of radiosensitizing agents that exploit tumor biology to maximize effects of concurrently administered radiation. The current article outlines the scientific rationale for the use of radiosensitizing agents and preliminary results from clinical trials using a variety of these approaches.