Evidence map›Paper›PMID 40499566›Full record

ReviewJournal of evaluation in clinical practice2025

Improving Trial Informativeness: A Rapid Review of Global Research on How to Ensure Trials Are Useful.

Sarah R Prowse, Shaun Treweek, Miriam Brazzelli, Hanne Bruhn

Abstract readReview
In one paragraph

Review in Journal of evaluation in clinical practice, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. 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

4 authors.

Sarah R ProwseAberdeen Centre for Evaluation, University of Aberdeen, Aberdeen, UK.ORCID 0000-0002-9091-6586
Shaun TreweekAberdeen Centre for Evaluation, University of Aberdeen, Aberdeen, UK.ORCID 0000-0002-7239-7241
Miriam BrazzelliAberdeen Centre for Evaluation, University of Aberdeen, Aberdeen, UK.ORCID 0000-0002-7576-6751
Hanne BruhnAberdeen Centre for Evaluation, University of Aberdeen, Aberdeen, UK.ORCID 0000-0002-9309-9809

Funding

This review is supported by a grant from the Bill & Melinda Gates Foundation: INV-067716. INV-067716
6 · The paper itself

Abstract

rationaleRandomised controlled trials are considered the 'gold standard' in clinical research and decision-making. However, many trials have significant flaws that current review processes fail to identify early enough for corrections to be made. Flaws in trial design, conduct and reporting ultimately lead to research waste. This rapid review provides insights from global research aimed at improving trial 'informativeness' as described by Zarin and colleagues.

methodsA rapid review was conducted with a focus on research addressing trial design processes that might improve informativeness aligned with one or more of the five key conditions outlined by Zarin and colleagues: 1) Importance, 2) Design, 3) Feasibility, 4) Integrity and 5) Reporting. A further thematic analysis was conducted using NVivo 12.

resultsThe final review includes 42 texts. Of the 27 recommended processes or actions to improve trial informativeness, most were relevant to the second condition of trial design (2) Design; 44%). A key recommendation was the use of 'tools' to enhance trial informativeness. A total of 23 tools were identified across the conditions of 1) Importance (17%), 2) Design (74%) and 5) Reporting (9%).

conclusionThis review highlights how a better understanding of design processes that lead to informative trials can reduce or eliminate research waste. Further research is needed on how these processes can better support pre-funding peer review, which would also increase the likelihood of producing informative trials.

Indexed as

Randomized Controlled Trials as TopicResearch DesignHumans

Identifiers

PMID40499566
PMCPMC12158544

What Socratic 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 Socratic graph.