Evidence map›Paper›PMID 24293756›Full record

Trial reportSleep2013

Efficacy of vestipitant, a neurokinin-1 receptor antagonist, in primary insomnia.

Emiliangelo Ratti, David J Carpenter, Stefano Zamuner, Sofia Fernandes, Lisa Squassante, Heidi Danker-Hopfe, Graeme Archer, Jonathan Robertson, Robert Alexander, David G Trist and 1 more

Open access · bronzeAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Sleep, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 16% 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 47 citations in OpenAlex.

  1. Pooled it
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  6. The effect of maropitant on sedation, propofol requirements, and cardiovascular function at induction of anesthesia in healthy cats.Canadian journal of veterinary research = Revue canadienne de recherche veterinaire · 2026
    Article
  7. Review
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  10. Effects of menopause on temperature regulation.Temperature (Austin, Tex.) · 2025
    Review
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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

11 authors at 4 institutions in 4 countries.

Emiliangelo RattiGlaxoSmithKline Neuroscience Centre of Excellence for Drug Discovery, Verona, Italy.
David J Carpenter
Stefano Zamuner
Sofia Fernandes
Lisa Squassante
Heidi Danker-Hopfe
Graeme Archer
Jonathan Robertson
Robert Alexander
David G Trist
Emilio Merlo-Pich
GlaxoSmithKline (Italy) · ITGlaxoSmithKline (United Kingdom) · GBGlaxoSmithKline (United States) · USCharité - Universitätsmedizin Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectivesInvestigate the hypnotic effects of repeated doses of neurokinin-1 receptor antagonist, vestipitant, in primary insomnia.

designRandomized, double-blind, placebo-controlled 28-day parallel-group study.

settingEleven sleep centers in Germany. PATIENTS: One hundred sixty-one patients with primary insomnia.

interventionsPatients received vestipitant (15 mg) or placebo for 28 days; 2-night polysomnographic assessment occurred on nights 1/2 and 27/28. MEASUREMENTS AND

resultsWake after sleep onset (WASO) was improved on nights 1/2 and 27/28 (ratio, vestipitant versus placebo [95% confidence interval]: 0.76 [0.65, 0.90], P = 0.001 and 0.79 [0.65, 0.96], P = 0.02, respectively), demonstrating maintenance of the effect following repeated dosing. Latency to persistent sleep was shorter with vestipitant on nights 1/2 (P = 0.0006 versus placebo), but not on nights 27/28. Total sleep time (TST) improved with vestipitant (nights 1/2: P < 0.0001, nights 27/28: P = 0.02 versus placebo). Next-day cognitive function tests demonstrated no residual effects of vestipitant (P > 0.05 versus placebo). Adverse events (AEs) occurred in 25% of vestipitant patients versus 22% for placebo. Headache was the most common AE (8% of vestipitant patients versus 9% for placebo).

conclusionsVestipitant improved sleep maintenance in patients with primary insomnia, with no associated next-day cognitive impairment. The effects on wake after sleep onset and total sleep time were maintained following repeated dosing.

Indexed as

AdultDouble-Blind MethodFemaleFluorobenzenesHumansMaleMiddle AgedNeurokinin-1 Receptor AntagonistsPiperidinesPolysomnographySleep Initiation and Maintenance DisordersTreatment OutcomeYoung AdultFluorobenzenesNeurokinin-1 Receptor AntagonistsPiperidinesvestipitantCognitioninsomniaNK-1 receptor antagonistplacebopolysomnographysleepsubstance P receptorvestipitant

Identifiers

PMID24293756
PMCPMC3825431
OpenAlexW1992009754

What OpenQuestion holds

Textmetadata
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.