Evidence map›Paper›PMID 35198955›Full record

ArticleEpilepsy & behavior reports2022

The IDH1 inhibitor ivosidenib improved seizures in a patient with drug-resistant epilepsy from IDH1 mutant oligodendroglioma.

Anh Huan Vo, Prakash Ambady, David Spencer

Open access · goldAbstract readCase Reports
In one paragraph

Article in Epilepsy & behavior reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.6field-weighted citation impact, top 4% 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

21 citing papers in PubMed, 32 citations in OpenAlex.

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  10. Extra-temporal pediatric low-grade gliomas and epilepsy.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024
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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

3 authors at 1 institution in 1 country.

Anh Huan VoDepartment of Neurology, Oregon Health & Science University, Portland, OR, United States.
Prakash AmbadyDepartment of Neurology, Oregon Health & Science University, Portland, OR, United States.
David SpencerDepartment of Neurology, Oregon Health & Science University, Portland, OR, United States.
Oregon Health & Science University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Compared to high grade gliomas, low grade gliomas such as oligodendrogliomas are often more epileptogenic. Epilepsy develops in 70-90% of patients with oligodendrogliomas and 40% of these are resistant to anti-seizure medications and surgery [3]. IDH1/2 mutation is one defining feature of oligodendrogliomas and confers improved prognosis when found in astrocytomas [7]. One possible etiology of the high rate of epileptogenicity in oligodendrogliomas is D-2-Hydroxyglutarate (D2HG), an oncometabolite seen in IDH mutation [8]. D2HG can mimic the effect of glutamate at the NMDA receptor and increase the seizure risk [11]. In this case report, we present a patient with drug resistant focal epilepsy from IDH1 mutant oligodendroglioma with markedly improved seizure frequency after starting Ivosidenib, an IDH1 inhibitor, in the absence of any changes to traditional anti-seizure medications. Our case suggests the possibility that IDH1 inhibitors may help reduce seizure burden in patients with difficult to control epilepsy from IDH1 mutant oligodendrogliomas. This is significant because we show that a targeted cancer therapy is able to improve seizure frequency through a unique pathway, and suggests that research into similar targeted, precision medicine therapies in brain lesions associated with epilepsy may be beneficial.

Indexed as

EpilepsyGliomaIDH1 mutationIvosidenibOligodendrogliomaSeizure

Identifiers

PMID35198955
PMCPMC8844211
OpenAlexW4210384287

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.