Evidence map›Paper›PMID 24004722›Full record

Observational studyBMC cancer2013

Clinical variables serve as prognostic factors in a model for survival from glioblastoma multiforme: an observational study of a cohort of consecutive non-selected patients from a single institution.

Signe Regner Michaelsen, Ib Jarle Christensen, Kirsten Grunnet, Marie-Thérése Stockhausen, Helle Broholm, Michael Kosteljanetz, Hans Skovgaard Poulsen

Registry-linked trialOpen access · goldAbstract readObservational Study
In one paragraph

Observational study in BMC cancer, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05958485 (Glioblastoma Multiforme Patients in Clinical Trials), which is not on this map. Cited by 48 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 6 pooled it
2.8field-weighted citation impact, top 9% 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.

NCT05958485 not yet recruitingnot on this mapstarted 2024, after this paper: background citation

Glioblastoma Multiforme Patients in Clinical Trials: An Examination of Their Clinical Trial Experiences

TypeobservationalSponsorPower Life Sciences Inc.Ran2024 to 2026Enrolled500ConditionsGlioblastoma Multiforme
3 · Its place in the literature

Who cites it

48 citing papers in PubMed, 6 syntheses or guidelines pooled it, 86 citations in OpenAlex.

  1. Pooled it
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  3. Molecular Biomarkers in Glioblastoma: A Systematic Review and Meta-Analysis.International journal of molecular sciences · 2022
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  15. Treatment of glioblastoma in Greenlandic patients.International journal of circumpolar health · 2023
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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

7 authors at 1 institution in 1 country.

Signe Regner MichaelsenDepartment of Radiation Biology, The Finsen Center, Copenhagen University Hospital, Blegdamsvej 9, DK-2100 Copenhagen, Denmark. hans.skovgaard.poulsen@regionh.dk.
Ib Jarle Christensen
Kirsten Grunnet
Marie-Thérése Stockhausen
Helle Broholm
Michael Kosteljanetz
Hans Skovgaard Poulsen
Copenhagen University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough implementation of temozolomide (TMZ) as a part of primary therapy for glioblastoma multiforme (GBM) has resulted in improved patient survival, the disease is still incurable. Previous studies have correlated various parameters to survival, although no single parameter has yet been identified. More studies and new approaches to identify the best and worst performing patients are therefore in great demand.

methodsThis study examined 225 consecutive, non-selected GBM patients with performance status (PS) 0-2 receiving postoperative radiotherapy with concomitant and adjuvant TMZ as primary therapy. At relapse, patients with PS 0-2 were mostly treated by reoperation and/or combination with bevacizumab/irinotecan (BEV/IRI), while a few received TMZ therapy if the recurrence-free period was >6 months.

resultsMedian overall survival and time to progression were 14.3 and 8.0 months, respectively. Second-line therapy indicated that reoperation and/or BEV/IRI increased patient survival compared with untreated patients and that BEV/IRI was more effective than reoperation alone. Patient age, ECOG PS, and use of corticosteroid therapy were significantly correlated with patient survival and disease progression on univariate analysis, whereas p53, epidermal growth factor receptor, and O⁶-methylguanine-DNA methyltransferase expression (all detected by immunohistochemistry), tumor size or multifocality, and extent of primary operation were not. A model based on age, ECOG PS, and corticosteroids use was able to predict survival probability for an individual patient.

conclusionThe survival of RT/TMZ-treated GBM patients can be predicted based on patient age, ECOG PS, and corticosteroid therapy status.

Indexed as

AdultAgedAntineoplastic Agents, AlkylatingAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBrain NeoplasmsCombined Modality TherapyDacarbazineFemaleGlioblastomaHumansImmunohistochemistryMaleMiddle AgedNeoplasm StagingPrognosisAntineoplastic Agents, AlkylatingBiomarkers, TumorDacarbazineTemozolomide

Identifiers

PMID24004722
PMCPMC3766209
OpenAlexW2090353215

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.