Evidence map›Paper›PMID 25131812›Full record

SynthesisContemporary clinical trials2014

Strategies addressing barriers to clinical trial enrollment of underrepresented populations: a systematic review.

Caren Heller, Joyce E Balls-Berry, Jill Dumbauld Nery, Patricia J Erwin, Dawn Littleton, Mimi Kim, Winston P Kuo

Open access · greenAbstract readSystematic Review
In one paragraph

Synthesis in Contemporary clinical trials, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 170 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
170citing papers in PubMed, 6 pooled it
11.6field-weighted citation impact, top 1% of its field
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

170 citing papers in PubMed, 6 syntheses or guidelines pooled it, 299 citations in OpenAlex.

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  17. Maternal Prenatal Depressive Symptoms and Fetal Amygdala-Cerebellum Functional Connectivity.Journal of the American Academy of Child and Adolescent Psychiatry · 2026
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110 more citing papers are in PubMed but not listed here.

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 at 5 institutions in 1 country.

Caren HellerWeill Cornell Medical College, Department of Medicine, Division of Medical Ethics, United States.
Joyce E Balls-BerryMayo Clinic, Department of Health Sciences Research, Division of Epidemiology, United States; Mayo Clinic, Center for Clinical and Translational Science Office for Community Engagement in Research, United States. Electronic address: ballsberry.joyce@mayo.edu.
Jill Dumbauld NeryUniversity of California San Diego, Clinical and Translational Research Institute, United States.
Patricia J ErwinMayo Clinic Libraries, United States.
Dawn LittletonMayo Clinic Libraries, United States.
Mimi KimNC TraCS Institute, The University of North Carolina at Chapel Hill, United States; Center for Biobehavioral Health Disparities, United States.
Winston P KuoInterferon Expression Signature Diagnostics, Cambridge, MA 02139, United States; Harvard Catalyst, Laboratory for Innovative Translational Technologies, Harvard Medical School, Boston, MA 02115, United States.
Mayo Clinic in Florida · USCommunity Catalyst · USCornell University · USUniversity of California, San Diego · USUniversity of North Carolina at Chapel Hill · US

Funding

UC San Diego Clinical and Translational Research InstituteUL1TR001442 · NCATS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI FIRESTEIN, GARY S, HOGARTH, MICHAEL · 2015 to 2024
$88.3M
San Diego Clinical and Translational Research InstituteUL1TR000100 · NCATS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI FIRESTEIN, GARY S · 2012 to 2015
$19.7M
NCATS NIH HHS UL1 TR000100NCATS NIH HHS UL1 TR001442
6 · The paper itself

Abstract

backgroundUnderrepresentation of racial and ethnic minorities in clinical trials remains a reality while they have disproportionately higher rates of health disparities.

objectiveThe purpose of this study was to identify successful community-engaged interventions that included health care providers as a key strategy in addressing barriers to clinical trial enrollment of underrepresented patients.

designA systematic review of the literature on interventions addressing enrollment barriers to clinical trials for racial and ethnic minorities was performed in Ovid MEDLINE, EBSCO Megafile, and EBSCO CINAHL. The systematic review identified 360 studies, and 20 were selected using the inclusion criteria. An iterative process extracted information from the eligible studies.

resultsThe 20 selected studies were analyzed and then grouped by first author, nature of the clinical research initiative, priority populations, key strategies, and study outcomes. Nine of the studies addressed cancer clinical trials and 11 related to chronic medical conditions, including diabetes, hypertension management, and chronic kidney disease. The key strategies employed were categorized according to their presumed impact on barriers incurred at distinct steps in study recruitment: clinical trial awareness, opportunity to participate, and acceptance of enrollment. The strategies were further categorized by whether they would address barriers associated with minority perceptions of the research process and barriers related to how studies were designed and implemented.

conclusionMultiple and flexible strategies targeting providers and participants at provider sites and within communities might be needed to enroll underrepresented populations into clinical trials.

Indexed as

Minority GroupsPatient SelectionAwarenessClinical Trials as TopicEthnicityHumansRacial GroupsClinical trialsMinorityRecruitment

Identifiers

PMID25131812
PMCPMC6936726
OpenAlexW2091142866

What OpenQuestion holds

Textmetadata
LicenceTDM
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.