Evidence map›Paper›PMID 42663325›Full record

ArticleAnnals of neurology2026

Therapeutic Prospects of Ketamine for Cataplexy in Narcolepsy Type 1: Evidence from a Human Case and a Murine Model.

Francois Ricordeau, Sebastien Arthaud, Leila Langbour, Silvia Melzi, Aurelie Richard-Mornas, Hannah Doudoux, Benjamin Rolland, Laure Peter-Derex, Christelle Peyron

Abstract readCase Reports
In one paragraph

Article in Annals of neurology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

9 authors.

Francois RicordeauCenter for Sleep Medicine, Hospices Civils de Lyon, Université Claude Bernard Lyon 1, Lyon, France.
Sebastien ArthaudLyon Neuroscience Research Center, CNRS UMR 5292, INSERM U1028, Université Claude Bernard Lyon 1, Lyon, France.
Leila LangbourLyon Neuroscience Research Center, CNRS UMR 5292, INSERM U1028, Université Claude Bernard Lyon 1, Lyon, France.ORCID https://orcid.org/0009-0006-1415-3245
Silvia MelziLyon Neuroscience Research Center, CNRS UMR 5292, INSERM U1028, Université Claude Bernard Lyon 1, Lyon, France.
Aurelie Richard-MornasDepartment of Functional Neurology and Epileptology, Hospices Civils de Lyon, Lyon, France.
Hannah DoudouxMedipole de Savoie, Challes les Eaux, France.
Benjamin RollandLyon Neuroscience Research Center, CNRS UMR 5292, INSERM U1028, Université Claude Bernard Lyon 1, Lyon, France.
Laure Peter-DerexCenter for Sleep Medicine, Hospices Civils de Lyon, Université Claude Bernard Lyon 1, Lyon, France.ORCID https://orcid.org/0000-0002-9938-9639
Christelle PeyronLyon Neuroscience Research Center, CNRS UMR 5292, INSERM U1028, Université Claude Bernard Lyon 1, Lyon, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Narcolepsy type 1 is characterized by cataplexy, for which current treatments targeting monoaminergic, histaminergic, and GABAergic pathways may be ineffective or poorly tolerated. We report the case of a 34-year-old man with narcolepsy type 1, intolerant to standard therapies, who experienced marked and sustained cataplexy reduction with morning intranasal ketamine, with symptom recurrence upon discontinuation. To confirm this observation, ketamine was compared with vehicle in a crossover study in orexin knockout mice implanted for polysomnography. Ketamine dramatically reduced time spent in cataplexy (-76%, p = 0.008) without affecting sleep architecture. These translational findings suggest ketamine as a potential anticataplectic agent, warranting further clinical investigation. ANN NEUROL 2026;100:1023-1027.

Indexed as

CataplexyKetamineNarcolepsyAdultAnimalsDisease Models, AnimalHumansMaleMiceMice, KnockoutOrexinsPolysomnographyKetamineOrexins

Identifiers

PMID42663325
PMCPMC13688053

What OpenQuestion holds

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Read underepoch 390

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.