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01-04-2011 | Clinical Study – Patient Study

Correlation between O⁶-methylguanine-DNA methyltransferase and survival in elderly patients with glioblastoma treated with radiotherapy plus concomitant and adjuvant temozolomide

Authors: Giuseppe Minniti, M. Salvati, A. Arcella, F. Buttarelli, A. D’Elia, G. Lanzetta, V. Esposito, S. Scarpino, R. Maurizi Enrici, F. Giangaspero

Published in: Journal of Neuro-Oncology | Issue 2/2011

Abstract

Epigenetic silencing of the O⁶-methylguanine-DNA-methyltransferase (MGMT) gene by promoter methylation is correlated with improved progression-free survival (PFS) and overall survival (OS) in adult patients with newly diagnosed glioblastoma multiforme (GBM) who receive alkylating agents. The aim of this study is to determine the correlation between MGMT and survival in elderly patients with GBM treated with radiotherapy (RT) and temozolomide (TMZ). Eighty-three patients aged 70 years or older with histologically confirmed GBM treated with RT plus TMZ between February 2005 and September 2009 were investigated in this study. The methylation status of the MGMT promoter was determined by polymerase chain reaction analysis. Median PFS and OS were 7.5 and 12.8 months, respectively. The MGMT promoter was methylated in 42 patients (50.6%) and unmethylated in 41 patients (49.4%). Median OS was 15.3 months in methylated patients and 10.2 months in unmethylated patients (P = 0.0001). Median PFS was 10.5 months in methylated tumors and 5.5 months in unmethylated tumors (P = 0.0001). On multivariate analysis MGMT methylation status emerged as the strongest independent prognostic factor for OS and PFS (P = 0.004 and P = 0.005, respectively). The results of the present study suggest that MGMT methylation status might be an important prognostic factor associated with better OS and PFS in elderly patients with GBM treated with RT and TMZ.

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Title: Correlation between O6-methylguanine-DNA methyltransferase and survival in elderly patients with glioblastoma treated with radiotherapy plus concomitant and adjuvant temozolomide
Authors: Giuseppe Minniti
M. Salvati
A. Arcella
F. Buttarelli
A. D’Elia
G. Lanzetta
V. Esposito
S. Scarpino
R. Maurizi Enrici
F. Giangaspero
Publication date: 01-04-2011
Publisher: Springer US
Published in: Journal of Neuro-Oncology / Issue 2/2011
Print ISSN: 0167-594X
Electronic ISSN: 1573-7373
DOI: https://doi.org/10.1007/s11060-010-0324-4

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Correlation between O⁶-methylguanine-DNA methyltransferase and survival in elderly patients with glioblastoma treated with radiotherapy plus concomitant and adjuvant temozolomide

Abstract

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Abstract

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