- Chemoradiotherapy: Patients receive temozolomide and undergo radiotherapy as in arm I. Patients also receive vatalanib twice daily for 6 weeks at the MTD determined in phase I. Four weeks after the completion of chemoradiotherapy, patients proceed to adjuvant therapy. During the 4-week period between chemoradiotherapy and adjuvant therapy, patients continue to receive oral vatalanib twice daily.