Evidence map›Paper›PMID 34782417›Full record

ArticleJournal of medical ethics2021

Informed consent in pragmatic trials: results from a survey of trials published 2014-2019.

Jennifer Zhe Zhang, Stuart G Nicholls, Kelly Carroll, Hayden Peter Nix, Cory E Goldstein, Spencer Phillips Hey, Jamie C Brehaut, Paul C McLean, Charles Weijer, Dean A Fergusson and 1 more

Abstract read
In one paragraph

Article in Journal of medical ethics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–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

18 citing papers in PubMed.

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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

11 authors.

Jennifer Zhe ZhangSchool of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada.ORCID http://orcid.org/0000-0001-9766-0416
Stuart G NichollsClinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
Kelly CarrollClinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
Hayden Peter NixSchulich School of Medicine & Dentistry, Western University, London, Ontario, Canada.ORCID http://orcid.org/0000-0002-4205-5857
Cory E GoldsteinPhilosophy, Rotman Institute of Philosophy, London, Ontario, Canada.
Spencer Phillips HeyCenter for Bioethics, Harvard Medical School, Boston, Massachusetts, USA.
Jamie C BrehautSchool of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada.
Paul C McLeanBoston, Massachusetts, USA.
Charles WeijerMedicine, Epidemiology and Biostatistics, and Philosophy, Western University, London, Ontario, Canada.ORCID http://orcid.org/0000-0002-5510-1074
Dean A FergussonSchool of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada.
Monica TaljaardSchool of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada mtaljaard@ohri.ca.ORCID http://orcid.org/0000-0002-3978-8961

Funding

Training Core (I)U54AG063546 · NIA · BROWN UNIVERSITY · PI JASON H KARLAWISH · 2019 to 2026
$125.9M
NIA NIH HHS U54 AG063546
6 · The paper itself

Abstract

objectivesTo describe reporting of informed consent in pragmatic trials, justifications for waivers of consent and reporting of alternative approaches to standard written consent. To identify factors associated with (1) not reporting and (2) not obtaining consent.

methodsSurvey of primary trial reports, published 2014-2019, identified using an electronic search filter for pragmatic trials implemented in MEDLINE, and registered in ClinicalTrials.gov.

resultsAmong 1988 trials, 132 (6.6%) did not include a statement about participant consent, 1691 (85.0%) reported consent had been obtained, 139 (7.0%) reported a waiver and 26 (1.3%) reported consent for one aspect (eg, data collection) but a waiver for another (eg, intervention). Of the 165 trials reporting a waiver, 76 (46.1%) provided a justification. Few (53, 2.9%) explicitly reported use of alternative approaches to consent. In multivariable logistic regression analyses, lower journal impact factor (p=0.001) and cluster randomisation (p<0.0001) were significantly associated with not reporting on consent, while trial recency, cluster randomisation, higher-income country settings, health services research and explicit labelling as pragmatic were significantly associated with not obtaining consent (all p<0.0001). DISCUSSION: Not obtaining consent seems to be increasing and is associated with the use of cluster randomisation and pragmatic aims, but neither cluster randomisation nor pragmatism are currently accepted justifications for waivers of consent. Rather than considering either standard written informed consent or waivers of consent, researchers and research ethics committees could consider alternative consent approaches that may facilitate the conduct of pragmatic trials while preserving patient autonomy and the public's trust in research.

Indexed as

clinical trialethics committeesethics- researchinformed consentprimary health care

Identifiers

PMID34782417
PMCPMC9107524

What OpenQuestion holds

Textmetadata
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.