Temozolomide and Radiation Therapy With or Without Cediranib Maleate in Treating Patients With Newly Diagnosed Glioblastoma

Study Summary

This randomized phase II trial studies temozolomide, radiation therapy, and cediranib maleate to see how well they work compared with temozolomide, radiation therapy, and a placebo in treating patients with newly diagnosed glioblastoma (a type of brain tumor). Drugs used in chemotherapy, such as temozolomide, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Radiation therapy uses high energy x-rays to kill tumor cells. Cediranib maleate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth and by blocking blood flow to the tumor. It is not yet known whether temozolomide and radiation therapy are more effective when given with or without cediranib maleate in treating glioblastoma.

Primary Outcome

Six-month progression-free survival is the rate of patients who have NOT progressed at six months, where progressive disease is defined as any of the following: ≥ 25% increase in sum of the products of perpendicular diameters of enhancing lesions; any new lesion; or clinical deterioration. Progression will be determined by central review of MRI exams, assessed using MacDonald criteria for progression versus response on 2D T1 and T2 weighted images.

Interventions

• OTHER Laboratory Biomarker Analysis
• RADIATION Intensity-Modulated Radiation Therapy
• RADIATION 3-Dimensional Conformal Radiation Therapy
• OTHER Placebo Administration
• DRUG Cediranib Maleate