Evidence map›Paper›PMID 25663202›Full record

ArticleThe Permanente journal2015

Elderly patients with glioblastoma multiforme treated with concurrent temozolomide and standard- versus abbreviated-course radiotherapy.

Christine N Chang-Halpenny, Jekwon Yeh, Winston W Lien

Abstract read
In one paragraph

Article in The Permanente journal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 4 pooled it
1.4field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 4 syntheses or guidelines pooled it, 25 citations in OpenAlex.

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  15. Glioblastoma in the elderly: Therapeutic dilemmas.Surgical neurology international · 2015
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Christine N Chang-HalpennyRadiation Oncologist at the Sunset Medical Center in Los Angeles, CA. christine.n.chang-halpenny@kp.org.
Jekwon YehRadiation Oncologist at the Cancer Center of Irvine in CA. jyeh.md22@ccoi.org.
Winston W LienRadiation Oncologist at the Sunset Medical Center in Los Angeles, CA. winston.w.lien@kp.org.
Los Angeles Medical Center · USUniversity of California, Irvine · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

contextGlioblastoma multiforme (GBM) is an aggressive neoplasm, with controversy regarding treatment in elderly patients.

objectiveTo review outcomes of elderly patients aged ≥ 65 with newly diagnosed GBM treated with concurrent temozolomide and either standard-course radiotherapy (SRT) or abbreviated-course radiotherapy (ART).

designRetrospective review from 2003 to 2012.

main outcome measureSurvival, comparing treatment regimens. One hundred patients received SRT (median dose = 60 Gy), and 29 received ART (median dose = 35 Gy). O6- methylguanine-DNA methyltransferase (MGMT) status was available for 26 SRT and 13 ART recipients.

resultsMedian age was 70 years. Median follow-up was 11 months. At analysis, 3 patients were alive. Multivariate analysis of the entire cohort found SRT (hazard ratio [HR] = 0.421, p = 0.0001), Karnofsky Performance Score of 70 or higher (HR = 1.894, p = 0.0031), and more extensive surgery (HR = 0.466, p = 0.0023) were associated with longer survival time, but age was not. Median time to death with SRT was 13 months versus 5.4 months with ART, but the latter had worse prognostic factors, including lower Karnofsky Performance Scores, fewer gross total resections, and higher recursive partitioning analysis class. Recipients of SRT with methylated MGMT promoter had a trend toward longer survival compared with unmethylated MGMT (p = 0.06), but ART recipients had shorter survival with MGMT methylation (p = 0.02).

conclusionElderly patients with multiple poor prognostic factors given ART had short survival times. Relative to other variables, MGMT status may not predict outcome for these patients.

Indexed as

AgedAged, 80 and overAntineoplastic Agents, AlkylatingBrain NeoplasmsCombined Modality TherapyDacarbazineFemaleGlioblastomaHumansMaleMultivariate AnalysisPromoter Regions, GeneticRadiotherapyRetrospective StudiesSurvival AnalysisTemozolomideAntineoplastic Agents, AlkylatingDacarbazineTemozolomide

Identifiers

PMID25663202
PMCPMC4315371
OpenAlexW2166892775

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.