Prolonged survival with valproic acid use in the EORTC/NCIC temozolomide trial for glioblastoma

This analysis was performed to assess whether antiepileptic drugs (AEDs) modulate the effectiveness of temozolomide radiochemotherapy in patients with newly diagnosed glioblastoma. The European Organization for Research and Treatment of Cancer (EORTC) 26981-22981/National Cancer Institute of Canada...

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Veröffentlicht in:Neurology 2011-09, Vol.77 (12), p.1156-1164
Hauptverfasser: WELLER, M, GORLIA, T, ROSSETTI, A. O, LACOMBE, D, MIRIMANOFF, R.-O, VECHT, C. J, STUPP, R, CAIRNCROSS, J. G, VAN DEN BENT, M. J, MASON, W, BELANGER, K, BRANDES, A. A, BOGDAHN, U, MACDONALD, D. R, FORSYTH, P
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container_end_page 1164
container_issue 12
container_start_page 1156
container_title Neurology
container_volume 77
creator WELLER, M
GORLIA, T
ROSSETTI, A. O
LACOMBE, D
MIRIMANOFF, R.-O
VECHT, C. J
STUPP, R
CAIRNCROSS, J. G
VAN DEN BENT, M. J
MASON, W
BELANGER, K
BRANDES, A. A
BOGDAHN, U
MACDONALD, D. R
FORSYTH, P
description This analysis was performed to assess whether antiepileptic drugs (AEDs) modulate the effectiveness of temozolomide radiochemotherapy in patients with newly diagnosed glioblastoma. The European Organization for Research and Treatment of Cancer (EORTC) 26981-22981/National Cancer Institute of Canada (NCIC) CE.3 clinical trial database of radiotherapy (RT) with or without temozolomide (TMZ) for newly diagnosed glioblastoma was examined to assess the impact of the interaction between AED use and chemoradiotherapy on survival. Data were adjusted for known prognostic factors. When treatment began, 175 patients (30.5%) were AED-free, 277 (48.3%) were taking any enzyme-inducing AED (EIAED) and 135 (23.4%) were taking any non-EIAED. Patients receiving valproic acid (VPA) only had more grade 3/4 thrombopenia and leukopenia than patients without an AED or patients taking an EIAED only. The overall survival (OS) of patients who were receiving an AED at baseline vs not receiving any AED was similar. Patients receiving VPA alone (97 [16.9%]) appeared to derive more survival benefit from TMZ/RT (hazard ratio [HR] 0.39, 95% confidence interval [CI] 0.24-0.63) than patients receiving an EIAED only (252 [44%]) (HR 0.69, 95% CI 0.53-0.90) or patients not receiving any AED (HR 0.67, 95% CI 0.49-0.93). VPA may be preferred over an EIAED in patients with glioblastoma who require an AED during TMZ-based chemoradiotherapy. Future studies are needed to determine whether VPA increases TMZ bioavailability or acts as an inhibitor of histone deacetylases and thereby sensitizes for radiochemotherapy in vivo.
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O ; LACOMBE, D ; MIRIMANOFF, R.-O ; VECHT, C. J ; STUPP, R ; CAIRNCROSS, J. G ; VAN DEN BENT, M. J ; MASON, W ; BELANGER, K ; BRANDES, A. A ; BOGDAHN, U ; MACDONALD, D. R ; FORSYTH, P</creator><creatorcontrib>WELLER, M ; GORLIA, T ; ROSSETTI, A. O ; LACOMBE, D ; MIRIMANOFF, R.-O ; VECHT, C. J ; STUPP, R ; CAIRNCROSS, J. G ; VAN DEN BENT, M. J ; MASON, W ; BELANGER, K ; BRANDES, A. A ; BOGDAHN, U ; MACDONALD, D. R ; FORSYTH, P</creatorcontrib><description>This analysis was performed to assess whether antiepileptic drugs (AEDs) modulate the effectiveness of temozolomide radiochemotherapy in patients with newly diagnosed glioblastoma. The European Organization for Research and Treatment of Cancer (EORTC) 26981-22981/National Cancer Institute of Canada (NCIC) CE.3 clinical trial database of radiotherapy (RT) with or without temozolomide (TMZ) for newly diagnosed glioblastoma was examined to assess the impact of the interaction between AED use and chemoradiotherapy on survival. Data were adjusted for known prognostic factors. When treatment began, 175 patients (30.5%) were AED-free, 277 (48.3%) were taking any enzyme-inducing AED (EIAED) and 135 (23.4%) were taking any non-EIAED. Patients receiving valproic acid (VPA) only had more grade 3/4 thrombopenia and leukopenia than patients without an AED or patients taking an EIAED only. The overall survival (OS) of patients who were receiving an AED at baseline vs not receiving any AED was similar. Patients receiving VPA alone (97 [16.9%]) appeared to derive more survival benefit from TMZ/RT (hazard ratio [HR] 0.39, 95% confidence interval [CI] 0.24-0.63) than patients receiving an EIAED only (252 [44%]) (HR 0.69, 95% CI 0.53-0.90) or patients not receiving any AED (HR 0.67, 95% CI 0.49-0.93). VPA may be preferred over an EIAED in patients with glioblastoma who require an AED during TMZ-based chemoradiotherapy. 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R</au><au>FORSYTH, P</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Prolonged survival with valproic acid use in the EORTC/NCIC temozolomide trial for glioblastoma</atitle><jtitle>Neurology</jtitle><addtitle>Neurology</addtitle><date>2011-09-20</date><risdate>2011</risdate><volume>77</volume><issue>12</issue><spage>1156</spage><epage>1164</epage><pages>1156-1164</pages><issn>0028-3878</issn><eissn>1526-632X</eissn><coden>NEURAI</coden><abstract>This analysis was performed to assess whether antiepileptic drugs (AEDs) modulate the effectiveness of temozolomide radiochemotherapy in patients with newly diagnosed glioblastoma. The European Organization for Research and Treatment of Cancer (EORTC) 26981-22981/National Cancer Institute of Canada (NCIC) CE.3 clinical trial database of radiotherapy (RT) with or without temozolomide (TMZ) for newly diagnosed glioblastoma was examined to assess the impact of the interaction between AED use and chemoradiotherapy on survival. Data were adjusted for known prognostic factors. When treatment began, 175 patients (30.5%) were AED-free, 277 (48.3%) were taking any enzyme-inducing AED (EIAED) and 135 (23.4%) were taking any non-EIAED. Patients receiving valproic acid (VPA) only had more grade 3/4 thrombopenia and leukopenia than patients without an AED or patients taking an EIAED only. The overall survival (OS) of patients who were receiving an AED at baseline vs not receiving any AED was similar. 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source Journals@Ovid Ovid Autoload; MEDLINE; Alma/SFX Local Collection
subjects Adolescent
Adult
Aged
Antineoplastic Agents, Alkylating - therapeutic use
Biological and medical sciences
Brain Neoplasms - drug therapy
Brain Neoplasms - mortality
Canada - epidemiology
Dacarbazine - analogs & derivatives
Dacarbazine - therapeutic use
Europe - epidemiology
Female
Glioblastoma - drug therapy
Glioblastoma - mortality
Humans
Male
Medical sciences
Middle Aged
Neurology
Neurosurgery
Retrospective Studies
Skull, brain, vascular surgery
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Survival Rate - trends
Valproic Acid - therapeutic use
Young Adult
title Prolonged survival with valproic acid use in the EORTC/NCIC temozolomide trial for glioblastoma
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