Cediranib Maleate and Cilengitide in Treating Patients With Progressive or Recurrent Glioblastoma

PRIMARY OBJECTIVES: I. To determine the safety profile of cediranib (cediranib maleate) in combination with cilengitide in patients with recurrent glioblastoma (Part A). SECONDARY OBJECTIVES: I. To estimate overall survival. II. To estimate the proportion of radiographic responses in recurrent glioblastoma patients with measurable disease treated with cediranib and cilengitide. III. To estimate the proportion of patients alive and progression free at 6 months (APF6) in patients with recurrent glioblastoma treated at the safe dose as determined in Part A (Part B). IV. To explore potential imaging techniques and biomarkers to capture the disease process through treatment. OUTLINE: This is a dose-escalation study of cediranib maleate. Patients are initially enrolled in the dose-finding portion of the study (part A). Once the safe dose of cediranib maleate is determined, additional patients are enrolled in the dose-expansion portion of the study (part B). Part A (dose finding): Patients receive cediranib maleate orally (PO) once daily on days 1-28 and cilengitide intravenously (IV) over 1 hour on days 1, 4, 8, 11, 15, 18, 22, and 25. Treatment repeats every 28 days in the absence of disease progression or unacceptable toxicity. Part B (dose expansion): Patients are assigned to 1 of 2 groups according to prior anti-VEGF therapy (yes vs no). Patients in both groups receive cediranib maleate (administered at the safe dose determined in part A) and cilengitide as in part A. After completion of study therapy, patients are followed up every 2 months.