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Bevacizumab (Avastin)and daily temozolomide (Temodar)for recurrent glioblastoma.

Posted on: 07/28/2011

Cancer. 2011 Jul 26. doi: 10.1002/cncr.26381. [Epub ahead of print]

Bevacizumab and daily temozolomide for recurrent glioblastoma.

Desjardins A, Reardon DA, Coan A, Marcello J, Herndon JE 2nd, Bailey L, Peters KB, Friedman HS, Vredenburgh JJ.


Department of Neurology, Duke University Medical Center, Durham, North Carolina.




The authors performed a phase 2 trial of combined protracted daily temozolomide and biweekly bevacizumab for patients with recurrent glioblastoma who had previously received radiation therapy and temozolomide.



There was no limit on the number of previous disease progressions or previous regimens allowed. Thirty-two adult patients were enrolled. Patients received temozolomide 50 mg/m(2) daily and bevacizumab 10 mg/kg intravenously every 14 days. Patients underwent physical examination and brain magnetic resonance imaging every 8 weeks.



The authors observed a 6-month progression-free survival (PFS) rate of 18.8% (95% confidence interval [CI], 7.6%-33.7%) and a median PFS of 15.8 weeks. The median overall survival (OS) was 37 weeks, the 6-month OS rate was 62.5% (95% CI, 43.5%-76.7%), and the 12-month OS rate was 31.3% (95% CI, 16.4%-47.3%). Nine patients (28%) had a radiographic response, and 7 patients (22%) had disease progression within the first 8 weeks of treatment. Patterns of progression were available for 21 patients. The authors observed that 52% of patients (n = 11) progressed locally, 38% (n = 8) progressed with a diffuse pattern, and 10% (n = 2) progressed at a distant site. Two patients discontinued therapy secondary to toxicity (prolonged thrombocytopenia and grade 4 pancreatitis). One patient experienced grade 5 pneumonia.



The current study demonstrated that a regimen of combined daily temozolomide and biweekly bevacizumab had some activity and was well tolerated. However, the results obtained in this study were inferior to those observed in studies of bevacizumab monotherapy and of combined irinotecan and bevacizumab therapy. The current patient population was more heterogeneous and was pretreated more heavily than patients in previous studies. Cancer 2011;. © 2011 American Cancer Society.


Copyright © 2011 American Cancer Society.





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