Evidence map›Paper›PMID 30579361›Full record

ArticleAlzheimer's research & therapy2018

Reactions to learning a "not elevated" amyloid PET result in a preclinical Alzheimer's disease trial.

Joshua D Grill, Chelsea G Cox, Kristin Harkins, Jason Karlawish

Abstract read
In one paragraph

Article in Alzheimer's research & therapy, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 3 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

19 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Psychosocial implications of learning amyloid PET results in an observational cohort.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Observational
  6. Article
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  9. Observational
  10. Biomarker disclosure protocols in prodromal Alzheimer's disease clinical trials.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2023
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Joshua D GrillInstitute for Memory Impairments and Neurological Disorders, University of California, Irvine, 3204 Biological Sciences III, Irvine, CA, USA. jgrill@uci.edu.ORCID http://orcid.org/0000-0002-4215-7589
Chelsea G CoxInstitute for Memory Impairments and Neurological Disorders, University of California, Irvine, 3204 Biological Sciences III, Irvine, CA, USA.
Kristin HarkinsPenn Memory Center, University of Pennsylvania, Philadelphia, PA, USA.
Jason KarlawishPenn Memory Center, University of Pennsylvania, Philadelphia, PA, USA.

Funding

UC Irvine Alzheimer's Disease Research Center Induced Pluripotent Stem Cell CoreP50AG016573 · NIA · UNIVERSITY OF CALIFORNIA-IRVINE · PI LAFERLA, FRANK M · 2000 to 2019
$37.0M
UPenn ADCC Biomarker CoreP30AG010124 · NIA · UNIVERSITY OF PENNSYLVANIA · PI XIE, SHARON XIANGWEN · 1991 to 2020
$35.1M
NIA NIH HHS P30 AG010124NIA NIH HHS P50 AG016573
6 · The paper itself

Abstract

backgroundThe experiences of biomarker-ineligible cognitively normal persons can inform trial conduct and the translation of preclinical Alzheimer's disease (AD) into clinical practice.

methodsWe interviewed 33 persons whose "not elevated" brain amyloid imaging biomarker result made them ineligible for a preclinical AD trial.

resultsMost participants (n = 17) reported being informed that they did not demonstrate adequately elevated amyloid to qualify, whereas some (n = 14) reported being told they had no amyloid or plaques. Relief (n = 17) and disappointment related to not being able to participate (n = 12) were the most common reactions to results. Nearly all participants would have made healthy lifestyle changes if they had received an "elevated" result, would have another scan, and would participate in another AD prevention trial.

conclusionsAlthough some participants may misconstrue results, disclosure of a "not elevated" amyloid result in the research setting causes little behavior change; willingness to participate in AD research remains.

Indexed as

Clinical Trials as TopicPatient SelectionAgedAged, 80 and overAlzheimer DiseaseAmyloid beta-PeptidesBiomarkersBrainFemaleHumansMalePositron-Emission TomographyAmyloid beta-PeptidesBiomarkersAlzheimer’s diseaseAsymptomaticDisclosurePreclinicalPrevention

Identifiers

PMID30579361
PMCPMC6303934

What OpenQuestion holds

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LicenceCC BY
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.