Evidence map›Paper›PMID 39694799›Full record

ArticleJournal of medical ethics2025

Navigating the consent river: questions to consider before waiving consent requirements in pragmatic cluster randomised trials.

Cory E Goldstein, Monica Taljaard, Stephanie N Dixon, Charles Weijer

Abstract read
In one paragraph

Article in Journal of medical ethics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Trial
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

4 authors.

Cory E GoldsteinMethodological and Implementation Research Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada cogoldstein@ohri.ca.ORCID http://orcid.org/0000-0002-0229-5039
Monica TaljaardMethodological and Implementation Research Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
Stephanie N DixonLondon Health Sciences Centre, London, Ontario, Canada.
Charles WeijerDepartment of Epidemiology and Biostatistics, Western University, London, Ontario, Canada.ORCID http://orcid.org/0000-0002-5510-1074

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The robust design and conduct of pragmatic cluster randomised trials may be in tension with the ethical requirement to obtain written informed consent from prospective research participants. In our experience, researchers tend to focus on whether a waiver of consent is appropriate for their studies. However, pragmatic cluster randomised trials raise other important questions that have direct implications for determining when an alteration or waiver of consent is permissible. To assist those involved in the design, conduct and review of pragmatic cluster randomised trials, we outline four critical questions to consider: (1) What is the nature of the intervention being evaluated? (2) Is the choice to use cluster randomisation justified? (3) Can the risk of recruitment bias be addressed? and (4) Is an alteration or waiver of consent appropriately justified? We recommend that researchers and research ethics committees conduct a stepwise analysis of a planned cluster randomised trial using these questions. To illustrate the application of this stepwise analysis, we use three pragmatic cluster randomised trials in the haemodialysis setting as case studies.

Indexed as

Informed ConsentPragmatic Clinical Trials as TopicRandomized Controlled Trials as TopicCluster AnalysisEthics Committees, ResearchEthics, ResearchHumansPatient SelectionResearch DesignClinical TrialEthics- ResearchInformed ConsentRisk Assessment

Identifiers

PMID39694799
PMCPMC12505058

What OpenQuestion holds

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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.