Radiation Therapy, Temozolomide, and Irinotecan in Treating Patients With Newly Diagnosed Glioblastoma Multiforme

RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Drugs used in chemotherapy, such as temozolomide and irinotecan, work in different ways to stop tumor cells from dividing so they stop growing or die. Combining radiation therapy with chemotherapy may kill more tumor cells. PURPOSE: This phase II trial is studying how well radiation therapy, temozolomide, and irinotecan work in treating patients with newly diagnosed glioblastoma multiforme.