Evidence map›Paper›PMID 39439251›Full record

SynthesisAlzheimer's & dementia : the journal of the Alzheimer's Association2024

Assessing clinical progression measures in Alzheimer's disease trials: A systematic review and meta-analysis.

Jonathan McLaughlin, William J Scotton, Natalie S Ryan, John A Hardy, Maryam Shoai

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
–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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Assessing clinical progression measures in Alzheimer's disease trials: A systematic review and meta-analysis.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Pooled it
  3. Review
  4. Article
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  9. Review
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  11. Article
  12. Genetic drivers of progression in Alzheimer's disease are distinct from disease risk.medRxiv : the preprint server for health sciences · 2025
    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

5 authors.

Jonathan McLaughlinUniversity of Aberdeen, NRS Career Researcher Fellow, Royal Cornhill Hospital, Scotland, UK.
William J ScottonUniversity College London Queen Square Institute of Neurology, London, UK.
Natalie S RyanUniversity College London Queen Square Institute of Neurology, London, UK.
John A HardyUniversity College London Queen Square Institute of Neurology, London, UK.
Maryam ShoaiUniversity College London Queen Square Institute of Neurology, London, UK.

Funding

Wellcome Trust
6 · The paper itself

Abstract

introductionAssessing treatments for Alzheimer's disease (AD) relies on reliable tools for measuring AD progression. In this analysis, we evaluate the sensitivity of clinical progression measures in AD within randomized controlled trials (RCTs) with confirmed positive amyloid (Aβ+) status prior to trial enrollment.

methodsExcluding trials targeting non-cognitive symptoms, we conducted meta-analyses on progression measures from 25 selected RCTs using R version 4.2.0, along with the metafor and emmeans libraries.

resultsThe Functional Activities Questionnaire (FAQ) demonstrated the greatest sensitivity over 12 weeks. Other cognitive measures demonstrated lower sensitivity. The integrated Alzheimer's Disease Rating Scale (iADRS) and Clinical Dementia Rating-Sum of Boxes (CDR-SB) seemed more effective than their individual cognitive components. Neuropsychiatric measures were the least sensitive in measuring progression. DISCUSSION: Functional measures generally outperformed other measure categories. Purely cognitive domain-based measures were suboptimal for tracking early AD progression. Ideally, future measures should incorporate both cognitive and functional components to enhance sensitivity. HIGHLIGHTS: Concerns remain regarding the limitations of current outcome measures used in AD clinical trials, particularly their sensitivity in the early and preclinical stages of the disease, which hampers their reliability as indicators of AD progression. The Functional Activities Questionnaire (FAQ) demonstrated the most substantial weighted mean change over 12 weeks, followed by the Mini-Mental State Examination (MMSE). Functional measures outperformed other measure categories. Composite scores of integrated Alzheimer's Disease Rating Scale and Clinical Dementia Rating-Sum of Boxes are more sensitive to change than their individual cognitive components, possibly driven by the functional components of the score. Neuropsychiatric measures analyzed in this study appeared to be the least sensitive in measuring progression.

Indexed as

Alzheimer DiseaseDisease ProgressionHumansNeuropsychological TestsRandomized Controlled Trials as TopicAlzheimer's dementiaamyloid positivemeta‐analysisoutcome measuresprogression measuresrandomized controlled trialssystematic review

Identifiers

PMID39439251
PMCPMC11667530

What OpenQuestion holds

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LicenceCC BY
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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.