Evidence map›Paper›PMID 31944580›Full record

Trial reportAlzheimer's & dementia : the journal of the Alzheimer's Association2020

Polysomnographic assessment of suvorexant in patients with probable Alzheimer's disease dementia and insomnia: a randomized trial.

W Joseph Herring, Paulette Ceesay, Ellen Snyder, Donald Bliwise, Kerry Budd, Jill Hutzelmann, Joanne Stevens, Christopher Lines, David Michelson

Registry-linked trialOpen access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06385106 (Effects of Repetitive Transcranial Magnetic Stimulation on Sleep and Cognitive Function in Patients With Alzheimer's Disease), which is not on this map. Cited by 88 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed, 7 pooled it
12.1field-weighted citation impact, top 1% 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.

NCT06385106 narecruitingnot on this mapstarted 2024, after this paper: background citation

Effects of Repetitive Transcranial Magnetic Stimulation on Sleep and Cognitive Function in Patients With Alzheimer's Disease: a Randomized, Double-blind, Controlled Study

TypeinterventionalSponsorFirst Affiliated Hospital of Zhejiang UniversityRan2024 to 2026Enrolled30ConditionsAlzheimer DiseaseArmsReal repetitive transcranial magnetic stimulation, Sham repetitive transcranial magnetic stimulation
3 · Its place in the literature

Who cites it

88 citing papers in PubMed, 7 syntheses or guidelines pooled it, 181 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Guideline
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pharmacotherapies for sleep disturbances in dementia.The Cochrane database of systematic reviews · 2020
    Pooled it
  8. The DREAMS START intervention for sleep in dementia: Long-term follow-up of a randomized controlled trial.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Trial
  9. Trial
  10. Trial
  11. Trial
  12. The efficacy and safety of zolpidem and zopiclone to treat insomnia in Alzheimer's disease: a randomized, triple-blind, placebo-controlled trial.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022
    Trial
  13. Trial
  14. Article
  15. Review
  16. Observational
  17. Review
  18. Article
  19. Sex differences in neuromodulatory subcortical systems and their implications for Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Review
  20. Article

28 more citing papers are in PubMed but not listed here.

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 at 2 institutions in 1 country.

W Joseph HerringMerck & Co., Inc., Kenilworth, New Jersey.
Paulette CeesayMerck & Co., Inc., Kenilworth, New Jersey.
Ellen SnyderMerck & Co., Inc., Kenilworth, New Jersey.
Donald BliwiseSleep Center, Emory University School of Medicine, Atlanta, Georgia.
Kerry BuddMerck & Co., Inc., Kenilworth, New Jersey.
Jill HutzelmannMerck & Co., Inc., Kenilworth, New Jersey.
Joanne StevensMerck & Co., Inc., Kenilworth, New Jersey.
Christopher LinesMerck & Co., Inc., Kenilworth, New Jersey.
David MichelsonMerck & Co., Inc., Kenilworth, New Jersey.
Merck & Co., Inc., Rahway, NJ, USA (United States) · USEmory University · US

Funding

Merck Sharp & Dohme Corp.
6 · The paper itself

Abstract

introductionWe evaluated the clinical profile of the orexin receptor antagonist suvorexant for treating insomnia in patients with mild-to-moderate probable Alzheimer's disease (AD) dementia.

methodsRandomized, double-blind, 4-week trial of suvorexant 10 mg (could be increased to 20 mg based on clinical response) or placebo in patients who met clinical diagnostic criteria for both probable AD dementia and insomnia. Sleep was assessed by overnight polysomnography in a sleep laboratory. The primary endpoint was change-from-baseline in polysomnography-derived total sleep time (TST) at week 4.

resultsOf 285 participants randomized (suvorexant, N = 142; placebo, N = 143), 277 (97%) completed the trial (suvorexant, N = 136; placebo, N = 141). At week 4, the model-based least squares mean improvement-from-baseline in TST was 73 minutes for suvorexant and 45 minutes for placebo; (difference = 28 minutes [95% confidence interval 11-45], p < 0.01). Somnolence was reported in 4.2% of suvorexant-treated patients and 1.4% of placebo-treated patients. DISCUSSION: Suvorexant improved TST in patients with probable AD dementia and insomnia.

Indexed as

PolysomnographyAgedAlzheimer DiseaseAzepinesFemaleHumansMaleSleepSleep Aids, PharmaceuticalSleep Initiation and Maintenance DisordersTriazolesAzepinesSleep Aids, PharmaceuticalsuvorexantTriazolesAlzheimer's diseaseinsomniarandomized clinical trialsuvorexant

Identifiers

PMID31944580
PMCPMC7984350
OpenAlexW2999676104

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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.