Stratified phase II trial of cetuximab in patients with recurrent high-grade glioma;

Bart Neyns, J. Sadones, Eric Joosens, F Bouttens, L Verbeke, Jean-François Baurain, L Dhondt, T Strauven, C. Chaskis, Pieter In 'T Veld, Alex Michotte, Jacques De Greve

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156 Citations (Scopus)

Abstract

Patients and methods: In this two-arm, open-label, phase II study patients were stratified according to their epidermal growth factor receptor (EGFR) gene amplification status. Cetuximab was administered intravenously at a dose of 400 mg/m(2) on week 1 followed by weekly dose of 250 mg/m(2). The primary end point for this study was the response rate in both study arms separately.
Results: Fifty-five eligible patients (28 with and 27 without EGFR amplification) tolerated cetuximab well. Three patients (5.5%) had a partial response and 16 patients (29.6%) had stable disease. The median time to progression was 1.9 months [95% confidence interval (CI) 1.6-2.2 months]. Whereas the progression-free survival (PFS) was <6 months in the majority (n = 50/55) of patients, five patients (9.2%) had a PFS on cetuximab of > 9 months. Median overall survival was 5.0 months (95% CI 4.2-5.9 months). No significant correlation was found between response, survival and EGFR amplification.
Conclusions: Cetuximab was well tolerated but had limited activity in this patient population with progressive HGG. A minority of patients may derive a more durable benefit but were not prospectively identified by EGFR gene copy number.
Original languageEnglish
Pages (from-to)1596-1603
Number of pages8
JournalAnnals of Oncology
Volume20
Publication statusPublished - 20 Sep 2009

Keywords

  • cetuximab
  • EGFR
  • glioblastoma

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