Repeated Super-selective Intraarterial Cerebral Infusion of Bevacizumab (Avastin) for Treatment of Relapsed GBM and AA

"Experimental portion of this proposal:~This trial will have two experimental arms that will be open labeled and non-randomized.~ARM 1 (If the patient has multifocal disease or leptomeningeal disease)~Day 0: Intraarterial Bevacizumab single dose (15mg/kg) after Mannitol to open the blood brain barrier Day 28: Intravenous Bevacizumab (10mg/kg) every two weeks thereafter until disease progression on MRI scan.~If progression occurs, repeat Intraarterial Bevacizumab single dose (15mg/kg) to area of progression and wait 28 days and then restart Intravenous Bevacizumab (10mg/kg) every two weeks thereafter until progression on MRI scan.~Repeat Cycle"

"ARM 2 (If the patient has no multifocal disease or leptomeningeal disease)~Day 0: Intraarterial Bevacizumab single dose (15mg/kg) after Mannitol to open the blood brain barrier Day 28: No biweekly IV Bevacizumab treatment~If MRI shows progression then repeat Intraarterial Bevacizumab single dose (15mg/kg) to area of progression Repeat Cycle"