Annals of Oncology Advance Access originally published online on April 27, 2005
Annals of Oncology 2005 16(7):1177-1184; doi:10.1093/annonc/mdi225
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© 2005 European Society for Medical Oncology
Temozolomide in combination with BCNU before and after radiotherapy in patients with inoperable newly diagnosed glioblastoma multiforme
1 Unité de Neuro-Oncologie, Service de Neurochirurgie, CHU Timone, Assistance PubliqueHôpitaux de Marseille, 2 Service de Pharmacie, CHU Timone, 3 Laboratoire d'Anatomie Pathologie, CHU Timone, 4 Service de Radiothérapie, CHU Timone, 5 Département de Neurologie, CHU Pitié Salpêtrière, Paris; 6 Laboratoire de Cancérologie Expérimentale, INSERM EMI 0359, Université de la Méditerranée, Faculté de Médecine de Marseille, Marseille, France
* Correspondence to: Dr O. Chinot, Unité de Neuro-Oncologie, Service de Neurochirurgie, Hôpital de la Timone, 264 rue Saint Pierre, 13385 Marseille cedex 05, France. Tel: +33-4-91-38-65-69; Fax: +33-4-91-38-73-48; Email: olivier.chinot{at}mail.ap-hm.fr
Background:: The aim of this study was to evaluate the efficacy and safety of carmustine (BCNU) in combination with temozolomide as first-line chemotherapy before and after radiotherapy (RT) in patients with inoperable, newly diagnosed glioblastoma multiforme (GBM).
Patients and methods:: Forty patients were treated with BCNU (150 mg/m2) on day 1 and temozolomide (110 mg/m2/day) on days 1 through 5 of each 42-day cycle for up to four cycles prior to conventional RT (2 Gy fractions to a total of 60 Gy). After RT, BCNU + temozolomide was administered for four additional cycles or until progression. The primary end point was response rate; secondary end points included progression-free survival (PFS); overall survival (OS) and safety.
Results:: Sixty per cent of patients completed four cycles of neo-adjuvant BCNU + temozolomide. Objective response rate (intention-to-treat) was 42.5% (95% confidence interval 27% to 58%), including two (5%) complete and 15 (37.5%) partial responses. In the eligible population (n=37) the objective response rate was 46%. Nine (24%) patients had stable disease and 14 (35%) had progressive disease. Median PFS and OS were 7.4 and 12.7 months, respectively. Age was the only significant prognostic factor and tumor location (lobar versus multifocal versus corpus callosum) showed a trend. Grade 34 toxicities included thrombocytopenia (n=11) and neutropenia (n=7) for both pre- and post-RT chemotherapy. Four patients required platelet transfusions. No patient discontinued treatment because of toxicity.
Conclusions:: The combination of BCNU plus temozolomide as neo-adjuvant therapy in inoperable GBM exhibited promising activity with a good safety profile and warrants further evaluation.
Key words: 3-bis(2-chloroethyl)-1-nitrosourea (BCNU), chemotherapy neo-adjuvant strategy, glioblastoma, inoperable brain tumor, temozolomide
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