Evidence map›Paper›PMID 37733174›Full record

SynthesisJournal of neuro-oncology2023

Reirradiation versus systemic therapy versus combination therapy for recurrent high-grade glioma: a systematic review and meta-analysis of survival and toxicity.

Ravi Marwah, Daniel Xing, Timothy Squire, Yu Yang Soon, Hui K Gan, Sweet Ping Ng

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of neuro-oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
9.5field-weighted citation impact, top 2% 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 33 citations in OpenAlex.

  1. Pooled it
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  3. FET-PETTranslational cancer research · 2026
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  13. Salvage reirradiation for recurrent glioblastoma: a retrospective case series analysis.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
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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

6 authors at 4 institutions in 2 countries.

Ravi MarwahDepartment of Radiation Oncology, Townsville University Hospital, 100 Angus Smith Drive, Douglas, Townsville, QLD, 4814, Australia. ravi.marwah@health.qld.gov.au.
Daniel XingDepartment of Radiation Oncology, Townsville University Hospital, 100 Angus Smith Drive, Douglas, Townsville, QLD, 4814, Australia.
Timothy SquireDepartment of Radiation Oncology, Townsville University Hospital, 100 Angus Smith Drive, Douglas, Townsville, QLD, 4814, Australia.
Yu Yang SoonDepartment of Radiation Oncology, National University Cancer Institute, Singapore, Singapore.
Hui K GanDepartment of Medical Oncology, Olivia Newton-John Cancer Wellness & Research Centre, Austin Health, Melbourne, Australia.
Sweet Ping NgDepartment of Radiation Oncology, Olivia Newton-John Cancer Wellness & Research Centre, Austin Health, Melbourne, Australia.
Townsville Hospital · AUAustin Health · AUNational University Cancer Institute, Singapore · SGOlivia Newton-John Cancer Wellness & Research Centre · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis review compares reirradiation (reRT), systemic therapy and combination therapy (reRT & systemic therapy) with regards to overall survival (OS), progression-free survival (PFS), adverse effects (AEs) and quality of life (QoL) in patients with recurrent high-grade glioma (rHGG).

methodsA search was performed on PubMed, Scopus, Embase and CENTRAL. Studies reporting OS, PFS, AEs and/or QoL and encompassing the following groups were included; reirradiation vs systemic therapy, combination therapy vs systemic therapy, combination therapy vs reRT, and bevacizumab-based combination therapy vs reRT with/without non-bevacizumab-based systemic therapy. Meta-analyses were performed utilising a random effects model. Certainty of evidence was assessed using GRADE.

resultsThirty-one studies (three randomised, twenty-eight non-randomised) comprising 2084 participants were included. In the combination therapy vs systemic therapy group, combination therapy improved PFS (HR 0.57 (95% CI 0.41-0.79); low certainty) and OS (HR 0.73 (95% CI 0.56-0.95); low certainty) and there was no difference in grade 3 + AEs (RR 1.03 (95% CI 0.57-1.86); very low certainty). In the combination therapy vs reRT group, combination therapy improved PFS (HR 0.52 (95% CI 0.38-0.72); low certainty) and OS (HR 0.69 (95% CI 0.52-0.93); low certainty). In the bevacizumab-based combination therapy vs reRT with/without non-bevacizumab-based systemic therapy group, adding bevacizumab improved PFS (HR 0.46 (95% CI 0.27-0.77); low certainty) and OS (HR 0.42 (95% CI 0.24-0.72; low certainty) and reduced radionecrosis (RR 0.17 (95% CI 0.06-0.48); low certainty).

conclusionsCombination therapy may improve OS and PFS with acceptable toxicities in patients with rHGG compared to reRT or systemic therapy alone. Particularly, combining bevacizumab with reRT prophylactically reduces radionecrosis. REGISTRATION: CRD42022291741.

Indexed as

GliomaRe-IrradiationBevacizumabHumansNeoplasm Recurrence, LocalQuality of LifeRandomized Controlled Trials as TopicBevacizumabCombination therapyHigh-grade gliomaRecurrentReirradiationSystemic therapy

Identifiers

PMID37733174
PMCPMC10589175
OpenAlexW4386909875

What OpenQuestion holds

Textmetadata
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.