Evidence map›Paper›PMID 32632894›Full record

Trial reportJournal of neuro-oncology2020

Temozolomide and seizure outcomes in a randomized clinical trial of elderly glioblastoma patients.

Seth A Climans, Alba A Brandes, J Gregory Cairncross, Keyue Ding, Michael Fay, Normand Laperriere, Johan Menten, Ryo Nishikawa, Christopher J O'Callaghan, James R Perry and 5 more

Registry-linked trialAbstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Journal of neuro-oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00482677 (A Randomized Phase III Study of Temozolomide and Short-Course Radiation Versus Short-Course Radiation Alone In The Treatment of Newly Diagnosed Glioblastoma Multiforme in Elderly Patients), which is not on this map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 16% 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.

NCT00482677 phase3completednot on this map

A Randomized Phase III Study of Temozolomide and Short-Course Radiation Versus Short-Course Radiation Alone In The Treatment of Newly Diagnosed Glioblastoma Multiforme in Elderly Patients

TypeinterventionalSponsorCanadian Cancer Trials GroupRan2007 to 2016Enrolled562ConditionsBrain and Central Nervous System TumorsArmstemozolomide, DNA methylation analysis, quality-of-life assessment, Radiation
3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Observational
  3. Review
  4. Article
  5. Review
  6. Epilepsy in Patients with Gliomas.Neurologia medico-chirurgica · 2024
    Review
  7. Review
  8. Review
  9. Article
  10. Optimal managements of elderly patients with glioblastoma.Japanese journal of clinical oncology · 2022
    Review
  11. Article
  12. Review
  13. Review
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

15 authors at 11 institutions in 6 countries.

Seth A ClimansDepartment of Medical Oncology and Hematology, Princess Margaret Cancer Centre, 610 University Ave, Toronto, ON, M5G2M9, Canada. seth.climans@uhn.com.ORCID http://orcid.org/0000-0002-4961-237X
Alba A BrandesAzienda Unità Sanitaria Locale - Istituto di Ricovero e Cura a Carattere Scientifico Istituto delle Scienze Neurologiche, Bologna, Italy.
J Gregory CairncrossUniversity of Calgary, Calgary, Canada.
Keyue DingThe Canadian Cancer Trials Group, Queen's University, Kingston, Canada.
Michael FayUniversity of Newcastle, Newcastle, Australia.
Normand LaperriereDepartment of Medical Oncology and Hematology, Princess Margaret Cancer Centre, 610 University Ave, Toronto, ON, M5G2M9, Canada.
Johan MentenUniversity Hospital Gasthuisberg, Leuven, Belgium.
Ryo NishikawaSaitama Medical University International Medical Center, Saitama, Japan.
Christopher J O'CallaghanThe Canadian Cancer Trials Group, Queen's University, Kingston, Canada.
James R PerryOdette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Canada.
Claire PhillipsPeter MacCallum Cancer Centre, Melbourne, Australia.
Wilson RoaUniversity of Alberta, Edmonton, Canada.
Wolfgang WickNeurology Clinic, University of Heidelberg and Neurooncology Program, German Cancer Research Center, Heidelberg, Germany.
Chad WinchThe Canadian Cancer Trials Group, Queen's University, Kingston, Canada.
Warren P MasonDepartment of Medical Oncology and Hematology, Princess Margaret Cancer Centre, 610 University Ave, Toronto, ON, M5G2M9, Canada.
Princess Margaret Cancer Centre · CAQueen's University · CAGerman Cancer Research Center · DEIstituto delle Scienze Neurologiche di Bologna · ITPeter MacCallum Cancer Centre · AUSaitama International Medical Center · JPSunnybrook Health Science Centre · CAThe University of Queensland · AUUniversitair Ziekenhuis Leuven · BEUniversity of Alberta · CAUniversity of Calgary · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionTumor-related epilepsy may respond to chemotherapy. In a previously-published multi-centre randomized clinical trial of 562 elderly glioblastoma patients, temozolomide plus short-course radiotherapy conferred a survival benefit over radiotherapy alone. Seizure outcomes were not reported.

methodsWe performed an unplanned secondary analysis of this trial's data. The trial design has been previously reported. Seizures were recorded by clinicians as adverse events and by patients in quality of life questionnaires. A Chi-square test of seizure rates between the two groups (α = 0.05) and a Kaplan-Meier estimator of time-to-first self-reported seizure were planned.

resultsAlmost all patients were followed until they died. In the radiotherapy alone group, 68 patients (24%) had a documented or self-reported seizure versus 83 patients (30%) in the temozolomide plus radiotherapy group, Chi-square analysis showed no difference (p = 0.15). Patients receiving radiotherapy alone tended to develop seizures earlier than those receiving temozolomide plus radiotherapy (p = 0.054). Patients with seizures had shorter overall survival than those without seizures (hazard ratio 1.24, p = 0.02).

conclusionsThis study was not powered to detect differences in seizure outcomes, but temozolomide seemed to have minimal impact on seizure control in elderly patients with glioblastoma. CLINICAL

trial registrationNCT00482677 2007-06-05.

Indexed as

AgedAntineoplastic Agents, AlkylatingBrain NeoplasmsChemoradiotherapyFemaleFollow-Up StudiesGlioblastomaHumansMalePrognosisQuality of LifeRadiotherapySeizuresSurvival RateTemozolomideAntineoplastic Agents, AlkylatingTemozolomideEpilepsyGlioblastomaRandomized controlled trialSeizuresTemozolomide

Identifiers

PMID32632894
OpenAlexW3040355266

What OpenQuestion holds

Textmetadata
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.