Evidence map›Paper›PMID 26547911›Full record

ArticleJournal of neuro-oncology2016

Seizure reduction is a prognostic marker in low-grade glioma patients treated with temozolomide.

Johan A F Koekkoek, Linda Dirven, Jan J Heimans, Tjeerd J Postma, Maaike J Vos, Jaap C Reijneveld, Martin J B Taphoorn

Open access · hybridAbstract read
In one paragraph

Article in Journal of neuro-oncology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
2.9field-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.

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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Guideline
  2. Epilepsy in Patients with Gliomas.Neurologia medico-chirurgica · 2024
    Review
  3. Review
  4. Review
  5. Article
  6. Perampanel Add-on to Standard RadiochemotherapyFrontiers in neuroscience · 2020
    Article
  7. Article
  8. Article
  9. Article
  10. Observational
  11. Article
  12. Review
  13. Article
  14. Review
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  17. Article
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 2 institutions in 1 country.

Johan A F KoekkoekDepartment of Neurology, VU University Medical Center, Amsterdam, The Netherlands. j.a.f.koekkoek@lumc.nl.
Linda DirvenDepartment of Neurology, VU University Medical Center, Amsterdam, The Netherlands.
Jan J HeimansDepartment of Neurology, VU University Medical Center, Amsterdam, The Netherlands.
Tjeerd J PostmaDepartment of Neurology, VU University Medical Center, Amsterdam, The Netherlands.
Maaike J VosDepartment of Neurology, Medical Center Haaglanden, The Hague, The Netherlands.
Jaap C ReijneveldDepartment of Neurology, VU University Medical Center, Amsterdam, The Netherlands.
Martin J B TaphoornDepartment of Neurology, VU University Medical Center, Amsterdam, The Netherlands.
Amsterdam UMC Location VUmc · NLMedisch Centrum Haaglanden · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We aimed to analyze the value of seizure reduction and radiological response as prognostic markers of survival in patients with low-grade glioma (LGG) treated with temozolomide (TMZ) chemotherapy. We retrospectively reviewed adult patients with a progressive LGG and uncontrolled epilepsy in two hospitals (VUmc Amsterdam; MCH The Hague), who received chemotherapy with TMZ between 2002 and 2014. End points were a ≥50 % seizure reduction and MRI response 6, 12 and 18 months (mo) after the start of TMZ, and their relation with progression-free survival (PFS) and overall survival (OS). We identified 53 patients who met the inclusion criteria. Seizure reduction was an independent prognostic factor for both PFS (HR 0.38; 95 % CI 0.19-0.73; p = 0.004) and OS (HR 0.39; 95 % CI 0.18-0.85; p = 0.018) after 6mo, adjusting for age and histopathological diagnosis, as well as after 12 and 18mo. Patients with an objective radiological response showed a better OS (median 87.5mo; 95 % CI 62.0-112.9) than patients without a response (median 34.4mo; 95 % CI 26.1-42.6; p = 0.046) after 12mo. However, after 6 and 18mo OS was similar in patients with and without a response on MRI. Seizure reduction is an early and consistent prognostic marker for survival after treatment with TMZ, that seems to precede the radiological response. Therefore, seizure reduction may serve as a surrogate marker for tumor response.

Indexed as

AdultAntineoplastic Agents, AlkylatingBrain NeoplasmsDacarbazineDisease-Free SurvivalFemaleGliomaHumansMaleMiddle AgedRetrospective StudiesSeizuresTemozolomideTreatment OutcomeAntineoplastic Agents, AlkylatingDacarbazineTemozolomideChemotherapyGliomaPrimary brain tumorSeizuresTemozolomide

Identifiers

PMID26547911
PMCPMC4718947
OpenAlexW2239236707

What OpenQuestion holds

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LicenceCC BY
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.