Evidence map›Paper›PMID 30007160›Full record

Trial reportNeurobiology of aging2018

Guanfacine treatment for prefrontal cognitive dysfunction in older participants: a randomized clinical trial.

Nicole M Barcelos, Peter H Van Ness, Allison F Wagner, Martha G MacAvoy, Adam P Mecca, George M Anderson, Mark Trentalange, Keith A Hawkins, Mary Sano, Amy F T Arnsten and 1 more

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Neurobiology of aging, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.0field-weighted citation impact, top 26% 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

14 citing papers in PubMed, 20 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Article
  6. Combined Use of Guanfacine andNeurotrauma reports · 2024
    Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Review
  13. Review
  14. αNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2020
    Article
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 2 institutions in 1 country.

Nicole M BarcelosAlzheimer's Disease Research Unit, Yale University School of Medicine, New Haven, CT, USA; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.
Peter H Van NessDepartment of Medicine (Geriatrics), Yale University School of Medicine, New Haven, CT, USA.
Allison F WagnerAlzheimer's Disease Research Unit, Yale University School of Medicine, New Haven, CT, USA; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.
Martha G MacAvoyAlzheimer's Disease Research Unit, Yale University School of Medicine, New Haven, CT, USA; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.
Adam P MeccaAlzheimer's Disease Research Unit, Yale University School of Medicine, New Haven, CT, USA; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.
George M AndersonChild Study Center, Yale University School of Medicine, New Haven, CT, USA.
Mark TrentalangeDepartment of Medicine (Geriatrics), Yale University School of Medicine, New Haven, CT, USA.
Keith A HawkinsDepartment of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.
Mary SanoDepartment of Psychiatry, Mount Sinai School of Medicine, New York, NY, USA.
Amy F T ArnstenDepartment of Neuroscience, Yale University School of Medicine, New Haven, CT, USA.
Christopher H van DyckAlzheimer's Disease Research Unit, Yale University School of Medicine, New Haven, CT, USA; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA; Department of Neuroscience, Yale University School of Medicine, New Haven, CT, USA; Department of Neurology, Yale University School of Medicine, New Haven, CT, USA. Electronic address: christopher.vandyck@yale.edu.
Yale University · USIcahn School of Medicine at Mount Sinai · US

Funding

Yale Study Support Suite (YES3): Dashboard and Web Portal Software Supporting Research Workflow through integrated, customizable REDCap External ModulesP30AG021342 · NIA · YALE UNIVERSITY · PI Albert C Shaw · 2002 to 2026
$37.9M
Yale Alzheimer Disease Research CenterP50AG047270 · NIA · YALE UNIVERSITY · PI MAROTTOLI, RICHARD · 2015 to 2019
$8.3M
Guanfacine Treatment for Prefrontal Cognitive Dysfunction in Elderly SubjectsR01AG030457 · NIA · YALE UNIVERSITY · PI VAN DYCK, CHRISTOPHER H · 2008 to 2010
$1.1M
Investigation of molecular changes in mGluR5 and SV2A to study synaptic alterations in Alzheimer's disease using PET.K23AG057794 · NIA · YALE UNIVERSITY · PI MECCA, ADAM PETER · 2018 to 2022
$977k
NIA NIH HHS K23 AG057794NIA NIH HHS P30 AG021342NIA NIH HHS P50 AG047270NIA NIH HHS R01 AG030457
6 · The paper itself

Abstract

This study evaluated the effect of the alpha-2A-adrenoceptor agonist guanfacine on prefrontally mediated cognitive functions, as well as quality of life and global function in healthy older participants. One hundred twenty-three participants aged 75 years and older were randomly assigned to guanfacine 0.5 mg, 0.1 mg, or placebo daily for 12 weeks. The primary outcome measure was the change in z-score for 6 prefrontal executive function tasks over 12 weeks (PEF6). Neither dose of guanfacine improved PEF6 z-score relative to placebo. The rate of mean change (95% confidence interval) in PEF6 z-score over 12 weeks was 0.270 (0.159, 0.380) for placebo, compared with 0.121 (0.011, 0.232) for guanfacine 0.1 mg (p = 0.06, compared to placebo) and 0.213 (0.101, 0.324) for 0.5 mg (p = 0.47). Neither dose of guanfacine improved the quality of life or global function relative to placebo. Among common adverse events, only dry mouth was significantly more frequent on guanfacine compared to placebo. Guanfacine failed to ameliorate prefrontal cognitive function in older individuals, who were cognitively normal for age.

Indexed as

Adrenergic alpha-2 Receptor AgonistsAgedAged, 80 and overAge FactorsCognitive DysfunctionDouble-Blind MethodFemaleGuanfacineHumansMaleNeuropsychological TestsPrefrontal CortexQuality of LifeTreatment OutcomeAdrenergic alpha-2 Receptor AgonistsGuanfacineBrain agingCognitive agingExecutive functionGuanfacinePrefrontal cortex

Identifiers

PMID30007160
PMCPMC6503670
OpenAlexW2807262192

What OpenQuestion holds

Textmetadata
LicenceTDM
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.