Evidence map›Paper›PMID 26675031›Full record

ArticleBMC medicine2015

How should individual participant data (IPD) from publicly funded clinical trials be shared?

C Tudur Smith, C Hopkins, M R Sydes, K Woolfall, M Clarke, G Murray, P Williamson

2 registry-linked trialsAbstract read
In one paragraph

Article in BMC medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 47 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing 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.

NCT05466955 naactive not recruitingnot on this mapstarted 2024, after this paper: background citation

Slashing Two-wheeled Accidents by Leveraging Eyecare: a Stepped-wedge Cluster Randomised Controlled Trial to Assess Impact of Spectacles on Reducing Crash and Near-crash Events Among Myopic Motorcycle Drivers in Ho Chi Minh City Vietnam

TypeinterventionalSponsorQueen's University, BelfastRan2024 to 2027Enrolled158ConditionsMyopiaArmsFree eye glasses for un or under-corrected myopia
NCT06567340 narecruitingnot on this mapstarted 2025, after this paper: background citation

StratCare Trial 2: Evaluating the Clinical and Cost-effectiveness of AI-driven Stratified Care for Depression

TypeinterventionalSponsorRotherham Doncaster and South Humber NHS Foundation TrustRan2025 to 2027Enrolled1,252ConditionsDepressionArmsStratCare
3 · Its place in the literature

Who cites it

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

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  19. MarkVCID cerebral small vessel consortium: I. Enrollment, clinical, fluid protocols.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2021
    Article
  20. Discoverability of information on clinical trial data-sharing platforms.Journal of the Medical Library Association : JMLA · 2021
    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

7 authors.

C Tudur SmithMRC North West Hub for Trials Methodology Research, Department of Biostatistics, University of Liverpool, Block F Waterhouse Building, Liverpool, L69 3GL, UK. cat1@liv.ac.uk.
C HopkinsMRC North West Hub for Trials Methodology Research, Department of Biostatistics, University of Liverpool, Block F Waterhouse Building, Liverpool, L69 3GL, UK.
M R SydesMRC Clinical Trials Unit, University College London, Aviation House, 125 Kingsway, London, WC2B 6NH, UK.
K WoolfallMRC North West Hub for Trials Methodology Research, Department of Psychological Sciences, Block B Waterhouse Building, Brownlow Street, Liverpool, L69 3GL, UK.
M ClarkeAll-Ireland Hub for Trials Methodology Research, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Health Sciences Building, 97 Lisburn Road, Belfast, BT9 7BL, UK.
G MurrayCentre for Population Health Sciences, University of Edinburgh, Teviot Place, Edinburgh, EH8 9AG, UK.
P WilliamsonMRC North West Hub for Trials Methodology Research, Department of Biostatistics, University of Liverpool, Block F Waterhouse Building, Liverpool, L69 3GL, UK.

Funding

Medical Research Council G0800792Medical Research Council MC_UU_12023/24Medical Research Council MR/K025635/1Medical Research Council MR/L004933/1Medical Research Council MR/L004933/1-R39Wellcome TrustWellcome Trust WT095874MF
6 · The paper itself

Abstract

backgroundIndividual participant data (IPD) from completed clinical trials should be responsibly shared to support efficient clinical research, generate new knowledge and bring benefit to patients. The Medical Research Council (MRC) Hubs for Trials Methodology Research (HTMR) has developed guidance to facilitate the sharing of IPD from publicly funded clinical trials.

methodsDevelopment of the guidance was completed over four phases which included a focussed review of policy documents, a web-based survey of the UK Clinical Research Collaboration (CRC) Registered Clinical Trials Units (CTU) Network, participation of an expert committee and an open consultation with the UKCRC Registered CTU Network. The project was funded by the MRC HTMR (MR/L004933/1-R39).

resultsGood practice principles include: (i) the use of a controlled access approach, using a transparent and robust system to review requests and provide secure data access; (ii) seeking consent for sharing IPD from trial participants in all future clinical trials with adequate assurance that patient privacy and confidentiality can be maintained; and (iii) establishing an approach to resource the sharing of IPD which would include support from trial funders, sponsor organisations and users of IPD. The guidance has been endorsed by Cancer Research UK, MRC Methodology Research Programme Advisory Group, Wellcome Trust and the Executive Group of the UKCRC Registered CTU Network. The National Institute for Health Research (NIHR) has confirmed it is supportive of the application of this guidance.

conclusionsImplementation of these principles will improve transparency, increase the coherent sharing of IPD from publicly funded trials, and help publicly funded trials to adhere to trial funder and journal requirements for data sharing.

Indexed as

Information DisseminationClinical Trials as TopicFinancial SupportGuidelines as TopicHumansPolicy Making

Identifiers

PMID26675031
PMCPMC4682216

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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.