Evidence map›Paper›PMID 30919157›Full record

SynthesisJournal of neuro-oncology2019

Hypofractionated versus standard radiation therapy in combination with temozolomide for glioblastoma in the elderly: a meta-analysis.

Victor M Lu, Panogiotis Kerezoudis, Desmond A Brown, Terry C Burns, Alfredo Quinones-Hinojosa, Kaisorn L Chaichana

Registry-linked trialAbstract readMeta-AnalysisReview
PubMed Publisher
In one paragraph

Synthesis in Journal of neuro-oncology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06551909 (Radioimmunotherapy in Solid Tumors), which is not on this map. Cited by 20 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 6 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.

NCT06551909 narecruitingnot on this mapstarted 2024, after this paper: background citation

Radioimmunotherapy in Solid Tumors (Aim 2- Stereotactic Neoadjuvant Radiotherapy for Glioblastoma)

TypeinterventionalSponsorIRCCS San RaffaeleRan2024 to 2027Enrolled30ConditionsGlioblastomaArmsNeoaddjuvant Stereotactic Radiotherapy with Simultaneous Integrated Boost
3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Review
  8. Management of glioblastoma in elderly patients: A review of the literature.Clinical and translational radiation oncology · 2024
    Review
  9. Review
  10. Optimal managements of elderly patients with glioblastoma.Japanese journal of clinical oncology · 2022
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. 3D bioprinting of glioblastoma models.Journal of 3D printing in medicine · 2020
    Review
  18. Article
  19. Article
  20. 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

6 authors.

Victor M LuDepartment of Neurosurgery, Mayo Clinic, 200 First St, Rochester, MN, 55905, USA. lu.victor@mayo.edu.ORCID http://orcid.org/0000-0002-9470-5890
Panogiotis KerezoudisDepartment of Neurosurgery, Mayo Clinic, 200 First St, Rochester, MN, 55905, USA.
Desmond A BrownDepartment of Neurosurgery, Mayo Clinic, 200 First St, Rochester, MN, 55905, USA.
Terry C BurnsDepartment of Neurosurgery, Mayo Clinic, 200 First St, Rochester, MN, 55905, USA.
Alfredo Quinones-HinojosaDepartment of Neurosurgery, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA.
Kaisorn L ChaichanaDepartment of Neurosurgery, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA. Chaichana.Kaisorn@mayo.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is no clear consensus regarding the optimal treatment for glioblastoma (GBM) in the elderly. Hypofractionated radiation therapy (hRT) has emerged as a viable and comparable radiation regime compared to standard radiation therapy (sRT), however the survival effect of temozolomide (TMZ) with hRT is uncertain. The aim of this meta-analysis was to evaluate survival outcomes of hRT + TMZ vs sRT + TMZ in this specific demographic.

methodsSearches of 7 electronic databases from inception to January 2019 were conducted following the appropriate guidelines. Articles were screened against pre-specified criteria. The progression free survival (PFS) and overall survival (OS) metrics were then extracted and pooled by meta-analysis evaluating mean difference (MD).

resultsA total of 7 individual comparative studies describing hRT + TMZ vs sRT + TMZ (n = 917) respectively satisfied inclusion criteria. Meta-analysis by random-effects modelling indicated that compared to sRT + TMZ, hRT + TMZ resulted in comparable PFS (MD 0.3 months; 95% CI - 2.4 to 2.9; I

conclusionThe combination of hRT + TMZ is feasible in well-selected elderly GBM cases, and appears to confer a statistically comparable PFS compared to sRT + TMZ. However, expectations that the OS with hRT + TMZ is comparable to that of sRT + TMZ in all elderly GBM presentations should be tempered. It is likely a specific subgroup of elderly GBM patients will benefit greatly from the addition of TMZ to hRT, and greater investigation is needed to identify their characteristics.

Indexed as

Radiation Dose HypofractionationAntineoplastic Agents, AlkylatingBrain NeoplasmsChemoradiotherapyGlioblastomaHumansPrognosisTemozolomideAntineoplastic Agents, AlkylatingTemozolomideELDERLYGlioblastomaHypofractionatedRadiation therapySurvivalTemozolomide

Identifiers

What OpenQuestion holds

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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.