Evidence map›Paper›PMID 33076983›Full record

Trial reportAlzheimer's research & therapy2020

The impact of a multi-domain intervention on cerebral glucose metabolism: analysis from the randomized ancillary FDG PET MAPT trial.

Julien Delrieu, Thierry Voisin, Laure Saint-Aubert, Isabelle Carrie, Christelle Cantet, Bruno Vellas, Pierre Payoux, Sandrine Andrieu

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

Trial report in Alzheimer's research & therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01513252 (A 2-years Extension Study of MAPT Trial), which is not on this map. Cited by 10 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 2 pooled it
0.9field-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.

NCT01513252 nacompletednot on this map

A 2-years Extension Study of MAPT Trial : Evaluation of the Long Term Effects of Interventional Strategies to Prevent the Decline in Cognitive Functioning in Frail Older Adults

TypeinterventionalSponsorUniversity Hospital, ToulouseRan2011 to 2020Enrolled1,028ConditionsFrail ElderlyArmsGröber and Buschke test
3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.

  1. Pooled it
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  3. Trial
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  6. 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

8 authors at 2 institutions in 1 country.

Julien DelrieuPôle gériatrie, Cité de la santé, Place Lange - TSA 60033, 31059, Toulouse Cedex 9, France. delrieu.j@chu-toulouse.fr.ORCID 0000-0001-8690-8615
Thierry VoisinINSERM UMR 1027, Toulouse, France; University of Toulouse III, Toulouse, France.
Laure Saint-AubertToulouse NeuroImaging Center, University of Toulouse III, INSERM, UPS, Toulouse, France.
Isabelle CarrieGérontopôle, Department of Geriatrics, Toulouse (University Hospital) CHU, Purpan University Hospital, Toulouse, France.
Christelle CantetINSERM UMR 1027, Toulouse, France; University of Toulouse III, Toulouse, France.
Bruno VellasINSERM UMR 1027, Toulouse, France; University of Toulouse III, Toulouse, France.
Pierre PayouxDepartment of Nuclear Medicine, Toulouse CHU, Purpan University Hospital, Toulouse, France.
Sandrine AndrieuINSERM UMR 1027, Toulouse, France; University of Toulouse III, Toulouse, France.
Université Toulouse III - Paul Sabatier · FRHôpital Purpan · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe Multidomain Alzheimer Preventive Trial (MAPT) was designed to assess the efficacy of omega-3 fatty acid supplementation, multidomain intervention (MI), or a combination of both on cognition. Although the MAPT study was negative, an effect of MI in maintaining cognitive functions compared to placebo group was showed in positive amyloid subjects. A FDG PET study (MAPT-NI) was implemented to test the impact of MI on brain glucose metabolism.

methodsMAPT-NI was a randomized, controlled parallel-group single-center study, exploring the effect of MI on brain glucose metabolism. Participants were non-demented and had memory complaints, limitation in one instrumental activity of daily living, or slow gait. Participants were randomly assigned (1:1) to "MI group" or "No MI group." The MI consisted of group sessions focusing on 3 domains: cognitive stimulation, physical activity, nutrition, and a preventive consultation. [

resultsThe intention-to-treat population included 67 subjects (34 in the MI group and 33 in the No MI group. No significant MI effect was observed on primary outcome at 6 months. In the exploratory voxel-wise analysis, we observed a difference in favor of MI group on the change of cerebral glucose metabolism in limbic lobe (right hippocampus, right posterior cingulate, left posterior parahippocampal gyrus) at 6 months.

conclusionsMI failed to show an effect on metabolism in FDG-based AD biomarker, but exploratory analysis suggested positive effect on limbic system metabolism. This finding could suggest a delay effect of MI on AD progression.

trial registrationClinicalTrials.gov Identifier, NCT01513252 .

Indexed as

Alzheimer DiseaseFatty Acids, Omega-3BrainFluorodeoxyglucose F18GlucoseHumansPositron-Emission TomographyFatty Acids, Omega-3Fluorodeoxyglucose F18GlucoseAll cognitive disorders/dementiaAlzheimer’s diseaseClinical trials randomized controlledPETPrevention

Identifiers

PMID33076983
PMCPMC7574215
OpenAlexW3092745228

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.