Publication: Outcome after bevacizumab clinical trial therapy among recurrent grade III malignant glioma patients
Issued Date
2012-03-01
Resource Type
ISSN
15737373
0167594X
0167594X
Other identifier(s)
2-s2.0-84861712545
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Neuro-Oncology. Vol.107, No.1 (2012), 213-221
Suggested Citation
David A. Reardon, James E. Herndon, Katherine Peters, Annick Desjardins, April Coan, Emil Lou, Ashley Sumrall, Scott Turner, Sith Sathornsumetee, Jeremy N. Rich, Susan Boulton, Eric S. Lipp, Henry S. Friedman, James J. Vredenburgh Outcome after bevacizumab clinical trial therapy among recurrent grade III malignant glioma patients. Journal of Neuro-Oncology. Vol.107, No.1 (2012), 213-221. doi:10.1007/s11060-011-0740-0 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/13791
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Title
Outcome after bevacizumab clinical trial therapy among recurrent grade III malignant glioma patients
Abstract
Although outcome following bevacizumab among recurrent grade IV malignant glioma patients is documented as poor by several analyses, outcome for recurrent grade III patients following bevacizumab therapy has not been specifically evaluated. We performed a pooled analysis of 96 recurrent grade III malignant glioma patients enrolled on three consecutive phase II bevacizumab salvage trials to evaluate overall outcome following bevacizumab trial discontinuation. Outcome on the three bevacizumab trials, which included similar eligibility, treatment and assessment criteria, was comparable. Fortynine patients who progressed on bevacizumab trial therapy and remained alive for at least 30 days elected to receive additional therapy. These patients achieved a median PFS- 6 and OS of 30.6% (95% CI: 18.4, 43.6) and 10.3 months (95% CI: 5.2, 11.7), respectively. Among patients who continued bevacizumab therapy (n = 23) after study progression, PFS-6 and median OS were 39.1% (95% CI: 19.9, 58.0) and 9.2 months (95% CI: 5.2, 13.6), respectively, compared to 23.1% (95% CI: 9.4, 40.3; P = 0.51) and 10.3 months (95% CI: 2.5, 14.4; P = 0.91) for patients who initiated non-bevacizumab containing therapy (n = 26). Outcome after discontinuation of bevacizumab therapy for recurrent grade III malignant glioma patients is associated with improved outcome compared to historical data for recurrent grade IV malignant glioma patients. Salvage therapies following bevacizumab failure have modest activity for grade III malignant glioma patients that is independent of further bevacizumab continuation. © Springer Science+Business Media, LLC. 2011.