Relation between bevacizumab dose intensity and high-grade glioma survival: a retrospective study in two large cohorts.

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Date publication

avril 2012

Auteurs

Membres identifiés du Cancéropôle Est :
Pr GHIRINGHELLI François, Dr LADOIRE Sylvain, Pr TAILLANDIER Luc


Tous les auteurs :
Lorgis V, Maura G, Coppa G, Hassani K, Taillandier L, Chauffert B, Apetoh L, Ladoire S, Ghiringhelli F

Résumé

Bevacizumab is one of the rare drugs that could improve high-grade glioma outcome after failure of chemoradiotherapy. However, to date, there is no biomarker predictive for efficacy of bevacizumab therapy in terms of survival improvement for patients with high-grade glioma. We performed a retrospective analysis of clinical factors associated with patient survival using a training cohort of 110 consecutive patients treated with bevacizumab for recurrent high-grade glioma and an independent validation cohort of 109 patients. In the training cohort, 110 consecutive patients received bevacizumab-based therapy. The number of chemotherapy cycles delivered was 1,411. Median follow-up was 12 months. Thirty-four patients (31%) had objective partial response and 24% had stable disease on magnetic resonance imaging evaluation. Median progression-free survival (PFS) and overall survival (OS) were 4.3 and 9.2 months, respectively. On univariate analysis, among classical prognosis factors, only Karnofsky status >/=70% was associated with improved outcome. Surprisingly, patients with low bevacizumab dose intensity (

Référence

J Neurooncol. 2012 Apr;107(2):351-8