Evidence map›Paper›PMID 40682696›Full record

ArticleActa neurochirurgica2025

A scoping review of proton radiation therapy and mutant-isocitrate dehydrogenase-inhibitors in IDH mutated lower-grade gliomas: pushing beyond surrogate end-points.

Dima Harba, Alba Corell, Alireza Mansouri, Petter Brandal, Malin Blomstrand, Asgeir Store Jakola

Abstract readScoping Review
In one paragraph

Article in Acta neurochirurgica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. 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

6 authors.

Dima HarbaInstitute of Neuroscience and Physiology, Section of Clinical Neuroscience, Sahlgrenska Academy, Gothenburg, Sweden.
Alba CorellInstitute of Neuroscience and Physiology, Section of Clinical Neuroscience, Sahlgrenska Academy, Gothenburg, Sweden.
Alireza MansouriDepartment of Neurosurgery, Penn State College of Medicine, Hershey, PA, United States.
Petter BrandalDepartment of Oncology, Oslo University Hospital, Oslo, Norway.
Malin BlomstrandDepartment of Oncology, Sahlgrenska University Hospital, Gothenburg, Sweden.
Asgeir Store JakolaInstitute of Neuroscience and Physiology, Section of Clinical Neuroscience, Sahlgrenska Academy, Gothenburg, Sweden. jakola.asgeir@gu.se.

Funding

ALF-agreement ALFGBG-1006089
6 · The paper itself

Abstract

backgroundProton radiation therapy (PRT) and mutant isocitrate dehydrogenase inhibitors (mIDH-inhibitors) are emerging therapies for mIDH lower grade gliomas (LGGs). Despite their substantial theoretical benefits, comparisons with current standards - particularly pertaining to patient-centred outcomes - are limited.

methodsThrough PubMed and Scopus, a search strategy based on keywords focusing on PRT and mIDH-inhibitors was applied on December 3, 2024. Studies in English on at least 20 adult patients (≥ 18 years) with mIDH-LGG grade 2 or 3 and published between January 1, 2011 and August 31, 2024 were included. Review articles were excluded.

resultsOf 6383 identified articles, seven per treatment strategy were included. Overall survival was not reported for mIDH-inhibitors. The lack of high-quality studies comparing PRT to photon radiation therapy precludes conclusions regarding efficacy, effectiveness or even post-PRT radiological manifestations. For the mIDH-inhibitor Vorasidenib (AG-881), the radiological objective response rate was 10.0-42.9%, although lower for contrast-enhancing tumors. Vorasidenib significantly delayed tumor progression (27.7 versus 11.1 months, p < 0.001) and time to next intervention (not reached versus 17.8 months, p < 0.001) when compared to placebo. Adverse events were mostly mild, including elevated liver enzymes (15.6-44.2%) and headache (26.9-46.2%). Only 1/14 studies included assessments related to quality of life (QoL)-domains with inconclusive research on cognitive outcomes.

conclusionStudies reporting on patient-centred data including survival, cognition and QoL remain scarce. Larger, comparative prospective studies, preferably randomized controlled trials, with such outcomes are needed to inform clinicians whether the theoretical and radiological benefits can be translated to improved outcomes that matter to patients, i.e. living better and/or longer.

Indexed as

Brain NeoplasmsGliomaIsocitrate DehydrogenaseProton TherapyHumansMutationNeoplasm GradingIsocitrate DehydrogenaseGliomaIDH inhibitorProtonQuality of lifeSurvivalVorasidenib

Identifiers

PMID40682696
PMCPMC12276128

What OpenQuestion holds

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Registered trials

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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.