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| Home > Publications database > No benefit from TMZ treatment in GB with truly unmethylated MGMT promoter: Reanalysis of the CE.6 and the pooled Nordic/NOA-08 trials in elderly GB patients. > print |
| Home > Publications database > No benefit from TMZ treatment in GB with truly unmethylated MGMT promoter: Reanalysis of the CE.6 and the pooled Nordic/NOA-08 trials in elderly GB patients. > print |
| 001 | 291246 | ||
| 005 | 20251024115532.0 | ||
| 024 | 7 | _ | |a 10.1093/neuonc/noae108 |2 doi |
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| 037 | _ | _ | |a DKFZ-2024-01338 |
| 041 | _ | _ | |a English |
| 082 | _ | _ | |a 610 |
| 100 | 1 | _ | |a Hegi, Monika E |0 0000-0003-0855-6495 |b 0 |
| 245 | _ | _ | |a No benefit from TMZ treatment in GB with truly unmethylated MGMT promoter: Reanalysis of the CE.6 and the pooled Nordic/NOA-08 trials in elderly GB patients. |
| 260 | _ | _ | |a Oxford |c 2024 |b Oxford Univ. Press |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 500 | _ | _ | |a 2024 Oct 3;26(10):1867-1875 |
| 520 | _ | _ | |a The treatment of elderly/ frail patients with glioblastoma is a balance between avoiding undue toxicity, while not withholding effective treatment. It remains debated, whether these patients should receive combined chemo-radiotherapy with temozolomide (RT/TMZ➜TMZ) regardless of the O6-methylguanine DNA methyltransferase gene promoter (MGMTp) methylation status. MGMT is a well-known resistance factor blunting the treatment effect of TMZ, by repairing the most genotoxic lesion. Epigenetic silencing of the MGMTp sensitizes glioblastoma to TMZ. For risk adapted treatment, it is of utmost importance to accurately identify patients, who will not benefit from TMZ treatment.Here, we present a reanalysis of the clinical trials CE.6 and the pooled NOA-08 and Nordic trials in elderly glioblastoma patients that compared RT to RT/TMZ➜TMZ, or RT to TMZ, respectively. For 687 patients with available MGMTp methylation data, we applied a cutoff discerning truly unmethylated glioblastoma, established in a pooled analysis of four clinical trials for glioblastoma, with RT/TMZ➜TMZ treatment, using the same quantitative methylation specific MGMTp PCR assay.When applying this restricted cutoff to the elderly patient population, we confirmed that glioblastoma with truly unmethylated MGMTp derived no benefit from TMZ treatment. In the Nordic/NOA-08 trials RT was better than TMZ, suggesting little or no benefit from TMZ.For evidence-based treatment of glioblastoma patients validated MGMTp methylation assays should be used that accurately identify truly unmethylated patients. Respective stratified management of patients will reduce toxicity without compromising outcome and allow testing of more promising treatment options. |
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| 650 | _ | 7 | |a MGMT promoter methylation |2 Other |
| 650 | _ | 7 | |a elderly/frail GB patients |2 Other |
| 650 | _ | 7 | |a stratified treatment |2 Other |
| 700 | 1 | _ | |a Oppong, Felix B |b 1 |
| 700 | 1 | _ | |a Perry, James R |b 2 |
| 700 | 1 | _ | |a Wick, Wolfgang |0 P:(DE-He78)92e9783ca7025f36ce14e12cd348d2ee |b 3 |u dkfz |
| 700 | 1 | _ | |a Henriksson, Roger |b 4 |
| 700 | 1 | _ | |a Laperriere, Norman J |b 5 |
| 700 | 1 | _ | |a Gorlia, Thierry |b 6 |
| 700 | 1 | _ | |a Malmström, Annika |b 7 |
| 700 | 1 | _ | |a Weller, Michael |0 0000-0002-1748-174X |b 8 |
| 700 | 1 | _ | |a NCBTSG |b 9 |e Collaboration Author |
| 700 | 1 | _ | |a NOA |b 10 |e Collaboration Author |
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| 700 | 1 | _ | |a EORTC-BTG |b 12 |e Collaboration Author |
| 773 | _ | _ | |a 10.1093/neuonc/noae108 |g p. noae108 |0 PERI:(DE-600)2094060-9 |n 10 |p 1867-1875 |t Neuro-Oncology |v 26 |y 2024 |x 1522-8517 |
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