Temozolomide in elderly patients with newly diagnosed glioblastoma and poor performance status: an ANOCEF phase II trial

Jaime Gállego Pérez-Larraya, François Ducray, Olivier Chinot, Isabelle Catry-Thomas, Luc Taillandier, Jean-Sébastien Guillamo, Chantal Campello, Annick Monjour, Stéphanie Cartalat-Carel, Maryline Barrie, Aymeri Huchet, Patrick Beauchesne, Mona Matta, Karima Mokhtari, Marie-Laure Tanguy, Jérôme Honnorat, Jean-Yves Delattre
Journal of Clinical Oncology 2011 August 1, 29 (22): 3050-5

PURPOSE: The management of glioblastoma multiforme (GBM) in elderly patients with poor performance status is not well established. A trial evaluating the efficacy and safety of temozolomide alone in this population was undertaken.

PATIENTS AND METHODS: Patients age 70 years or older with newly diagnosed GBM and postoperative Karnofsky performance score (KPS) less than 70 were eligible for this nonrandomized phase II trial. Treatment consisted of 150 to 200 mg/m(2)/d temozolomide for 5 days every 4 weeks until disease progression. Radiotherapy was not administered. The primary end point was overall survival (OS); secondary end points included progression-free survival (PFS), safety, quality of life, and cognition.

RESULTS: Seventy patients (median age, 77 years; median KPS, 60) were enrolled between July 2007 and February 2009. Grade 3 to 4 neutropenia and thrombocytopenia occurred in 13% and 14% of patients, respectively. Median PFS was 16 weeks (95% CI, 10 to 20 weeks), and median OS was 25 weeks (95% CI, 19 to 28 weeks), comparing favorably with a 12- to 16-week OS expected from a purely supportive approach. Twenty-three patients (33%) improved their KPS by 10 or more points, and 18 (26%) became capable of self-care (KPS ≥ 70). Overall quality of life and cognition improved over time before disease progression. In the 31 tumors evaluated for O(6)-methylguanine-DNA methyltransferase (MGMT) promoter methylation, a methylated status indicated longer PFS (26 v 11 weeks; P = .03) and OS (31 v 19 weeks; P = .03).

CONCLUSION: Temozolomide has an acceptable tolerance in elderly patients with GBM and KPS less than 70. It is associated with improvement of functional status in 33% of patients and appears to increase survival compared with supportive care alone, especially in patients with methylated MGMT promoter.

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