A phase II trial of single-agent bevacizumab given every 3 weeks for recurrent malignant gliomas

2044 Background: Increasingly target specific agents are used in the treatment of malignant gliomas (MG). Among targeted agents, bevacizumab appears most promising and when combined with CPT-11. As CPT-11 has limited activity in recurrent MG, a single agent phase II trial of bevacizumab given every 3 weeks in with recurrent MG was performed. Methods: All patients (pts) had to sign an IRB informed consent except six pts who were treated at a different site in a similar fashion. All pts had to have at least one relapse with the first sixteen required to have two relapses before protocol amendment. Inclusion criteria required > 18 year of age, KPS > 60, on a non-enzyme inducing anticonvulsant, adequate bone marrow, liver and renal function, and normal urine protein and creatinine. MRI with perfusion was done at baseline (if patient consented) and then every 6 weeks. Patients were assessed using Macdonald criteria and continued on trial until tumor progression or toxicity. Treatment was bevacizumab 15 mg/kg e...