Evidence map›Paper›PMID 25927334›Full record

Trial reportRadiation oncology (London, England)2015

Comparison of radiation regimens in the treatment of Glioblastoma multiforme: results from a single institution.

Melissa Azoulay, Fabiano Santos, Luis Souhami, Valerie Panet-Raymond, Kevin Petrecca, Scott Owen, Marie-Christine Guiot, Mariia Patyka, Siham Sabri, George Shenouda and 1 more

Abstract readClinical TrialComparative Study
In one paragraph

Trial report in Radiation oncology (London, England), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. From imaging to biology of glioblastoma: new clinical oncology perspectives to the problem of local recurrence.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2018
    Review
  9. Article
  10. The Clinical Significance of OFrontiers in neurology · 2018
    Article
  11. Article
  12. Review
  13. Hypofractionated radiation therapy with temozolomide versus standard chemoradiation in patients with glioblastoma multiforme (GBM): A prospective, single institution experience.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology
    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

11 authors.

Melissa AzoulayDepartment of Oncology, Division of Radiation Oncology, McGill University, Montreal General Hospital, 1650 Avenue Cedar, H3G 1A4, Montréal, QC, Canada. melissa.azoulay@mail.mcgill.ca.
Fabiano SantosDepartment of Oncology, Division of Cancer Epidemiology, McGill University, 546 Pine Avenue West, H2W1S6, Montreal, QC, Canada. fabiano.santos@mcgill.ca.
Luis SouhamiDepartment of Oncology, Division of Radiation Oncology, McGill University, Montreal General Hospital, 1650 Avenue Cedar, H3G 1A4, Montréal, QC, Canada. luis.souhami@mcgill.ca.
Valerie Panet-RaymondDepartment of Oncology, Division of Radiation Oncology, McGill University, Montreal General Hospital, 1650 Avenue Cedar, H3G 1A4, Montréal, QC, Canada. valerie.panet-raymond@mcgill.ca.
Kevin PetreccaDepartment of Neurology and Neurosurgery, Montreal Neurological Hospital, McGill University, 3801 University Avenue, H2W1S6, Montreal, QC, Canada. kevin.petrecca@mcgill.ca.
Scott OwenDivision of Medical oncology, Department of Oncology, Montreal General Hospital, McGill University, 1650 Avenue Cedar, H3G 1A4, Montréal, QC, Canada. scott.owen@mcgill.ca.
Marie-Christine GuiotDepartment of Pathology, Montreal Neurological Hospital, McGill University, 3801 University Avenue, H3A 2B4, Montreal, QC, Canada. marie.christine.guiot@mcgill.ca.
Mariia PatykaResearch Institute of the McGill University Health Center, Montreal General Hospital, 1625 Pine Avenue West, H3G 1A4, Montreal, QC, Canada. mariia.patyka@mail.mcgill.ca.
Siham SabriDepartment of Oncology, Division of Radiation Oncology, McGill University, Montreal General Hospital, 1650 Avenue Cedar, H3G 1A4, Montréal, QC, Canada. siham.sabri@mcgill.ca.
George ShenoudaDepartment of Oncology, Division of Radiation Oncology, McGill University, Montreal General Hospital, 1650 Avenue Cedar, H3G 1A4, Montréal, QC, Canada. george.shenouda@mcgill.ca.
Bassam AbdulkarimDepartment of Oncology, Division of Radiation Oncology, McGill University, Montreal General Hospital, 1650 Avenue Cedar, H3G 1A4, Montréal, QC, Canada. bassam.abdulkarim@mcgill.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe optimal fractionation schedule of radiotherapy (RT) for Glioblastoma multiforme (GBM) is yet to be determined. We aim to compare different fractionation regimens and identify prognostic factors to better tailor RT for newly diagnosed GBM patients.

methodsAll data for patients who underwent surgery for GBM between January 2005 and December 2012 were compiled. Clinical information was collected using patient charts and government registry. Cox analysis was used to identify variables affecting survival and treatment outcome.

resultsThe median follow-up time was 13.2 months. Two hundred and seventy-six patients met the inclusion criteria, including 147 patients in the 60 Gy in 30 fractions (ConvRT) group, 86 patients in the 60 Gy in 20 fractions (HF60) group, and 43 patients in the 40 Gy in 15 fractions (HF40) group. Median survival (MS) was 16.0 months with a median progression-free survival (PFS) of 9.23 months in the ConvRT group. This was comparable to outcome in the HF60 group with MS 15.0 months and a median PFS of 9.1 months. Patients in the HF40 group had MS of 8 months, with a median PFS 5.4 months. Cox analysis showed no significant difference in OS between the ConvRT and HF60 groups but worse outcome in the HF40 group (HR 2.22, P=0.04). MGMT methylation, extent of resection, use of chemotherapy, and repeat surgery were found to be significant independent prognostic factors for survival.

conclusionsHF60 constitutes a safe RT approach that shows survival comparable to standard RT while allowing for a shorter treatment time.

Indexed as

Dose Fractionation, RadiationAgedAntineoplastic Agents, AlkylatingBrachytherapyBrain NeoplasmsChemoradiotherapyDacarbazineFemaleGlioblastomaHumansMaleNeoplasm StagingPrognosisRadiotherapy, Intensity-ModulatedRadiotherapy Planning, Computer-AssistedSurvival RateAntineoplastic Agents, AlkylatingDacarbazineTemozolomide

Identifiers

PMID25927334
PMCPMC4422039

What OpenQuestion holds

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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.