CClinicalTrials.gg
CompletedNCT05124119I-DREMUpdated Aug 12, 2026Results posted

Strategies to Enhance Recruitment and Retention of Black Individuals Into Clinical Trials for Substance Use Disorders

An observational study in Substance Use Disorders, sponsored by University of Texas Southwestern Medical Center. Completed at 1 site in United States. Open to participants aged 18 Years to 90 Years. Per ClinicalTrials.gov, last updated 2026-08-12.

Sponsored by University of Texas Southwestern Medical Center · Observational

Study type
Observational
Model
Other
Time perspective
Cross-sectional
Enrollment
63
Ages
18 Years to 90 Years
Sex
All
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Study summary

The overall goal of this research project will be to obtain feedback from consumers to help develop a manual called I-DREM (Innovative Development of Research Engagement Manual). The researchers hope to learn information from the consented participants to help map out solutions to improve recruitment of African American/Black individuals into Substance Abuse Disorder (SUD) clinical trials.

Read the detailed description

Black individuals represent 12% of the U.S. population. Approximately 3% participate in various clinical trials in the entire country. Black individuals are disproportionately affected by substance use and have higher rates of associated mortality, suggesting the need for action to address this racial disparity in health outcomes. Under-representation of ethnic minorities in clinical trials has significant scientific implications and ultimately compromises generalizability of research findings and further exacerbates existing racial health disparities.

Although incremental progress has occurred since the establishment of the National Institutes of Health (NIH) Revitalization Act, barriers that influence participation of the African American and ethnic minority populations in research continue to exist. The NIH has acknowledged the need for increased enrollment of ethnic minorities in research, yet minority enrollment into clinical and translational research remains low. There are no concrete developments (e.g., protocols, toolbox) to aid clinical researchers' effort to enhance recruitment and retention to date in substance using populations despite the detrimental disproportionate effects of substance use observed in the African American and or Black populations. This suggests the importance of initiating more innovative ways of retainment, recruitment, and education of ethnic minorities about Substance Use Disorders (SUDs).

Specifically, almost 1 million Americans, an estimated 977,000, met criteria for cocaine use disorder in 2018. The rate of overdose deaths attributed to cocaine increased by an average of 27% each year from 2012 to 2018, reaching a rate of 4.5 deaths per 100,000 standard population in 2018. This increase is a tripling in deaths from the year 2012 to 2018 and appears to be continuing to increase. The rate of death is highest among non-Hispanic Blacks at a rate of 8.3 per 100,000 population, which is nearly double the rate of death attributed to cocaine among non-Hispanic Whites. This differential death rate is seen despite similar rates of cocaine use among Blacks and Whites is 1.8 % versus 2.1%, respectively in 2018, suggesting the need for action to address this racial disparity in health outcomes.

Significance: Nearly 40% of Americans belong to a racial or ethnic minority group. However, participants in clinical trials for new pharmacotherapies skew heavily Caucasian. In the area of substance use disorders, Blacks are also disproportionally affected and have higher rates of associated mortality. One study using data from multiple Clinical Trials Network trials showed higher rates of combined opiate and stimulant use among Black compared to White adults. The rate of death is also highest among Black participants using cocaine at a rate of 8.3 per 100,000 population, which is nearly double the rate of death attributed to cocaine among non-Hispanic Whites. This differential death rate is seen despite similar rates of cocaine use among Blacks and Whites suggests the need for action to address this racial disparity in health outcomes. Under-representation of ethnic minorities in clinical trials has significant scientific implications and ultimately compromises generalizability of research findings and further exacerbates existing racial health disparities.

Rationale: While significant attention has been devoted to identifying barriers to inclusion, the current proposal seeks to redirect efforts away from documenting barriers and instead towards improved recruitment and retention of Black/African American (AA) individuals into Randomized Clinical Trials (RCTs). This will be achieved by developing a comprehensive and innovative manual that maps out concrete strategies for both increased recruitment and retention in RCTs

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Conditions studied

  • Substance Use Disorders
03

In context

Substance-Related Disorders

2,124 studies on the registry are indexed under Substance-Related Disorders; 393 are open to participants now.

This study's enrollment of 63 is below the median of 250 across 296 observational studies indexed under Substance-Related Disorders.

Browse Substance-Related Disorders studies →

Lead sponsor

University of Texas Southwestern Medical Center is the lead sponsor of 990 studies on the registry; 201 are open to participants now.

Of its 135 completed or terminated interventional studies of FDA-regulated products, 100 (74%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 90 Years
Sexes eligible
All
Sampling method
Non-probability sample

Study population

African American persons, male and female, 18 years to 90 years that have a history of substance abuse disorder and have competed rehabilitation and not actively using illicit drugs.

Inclusion criteria

  • At least 18 years of age
  • Self-identified as Black American or of African American heritage
  • Is using and looking to stop or reduce their cocaine use and or other illicit substance use
  • Has access to device for virtual meetings
  • Able to provide informed consent and complete verbal study assessments in English

Exclusion criteria

Exclusion Criteria:

-All that does not meet the inclusion criteria from (i) to (v) above

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Study design

Observational model
Other
Time perspective
Cross-sectional
Enrollment
63 participants (actual)
Patient registry
No

Groups and cohorts

  • Focus Groups

    Participants in Focus Group 1 (n=63) were assigned a unique study name or pseudonym and requested to answer a set of three different questionnaires that are described in the study's protocol after Focus Group 1. A subset of 49 participants also participated in Focus Group 2 and answered the same set of questionnaires after Focus Group 2. This study does not involve any type of intervention. The participants will not be administered any type of medications but only questionnaires. This is an observational (cross-section) type of study and not an experimental or randomized clinical trial.

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What researchers measure

Primary outcomes

  1. Identification of Concrete Reasons That Affect the Willingness of Black Individuals With Substance Use Disorder (SUD) Lived Experience to Participate in SUD Research.

    To conduct focus groups among Black Consumer stakeholders with lived substance use experience to understand the factors that may or may not affect their willingness to participate in prospective substance use disorder (SUD) clinical trials.

    Time frame: Baseline Day 1-15 (prior to Focus Group1) [Approximated time frame]

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Results

Posted Aug 12, 2026

Participant flow

Recruitment of participants will be conducted by phone or virtually by the study staff.

Participant flow — Overall Study
MilestoneFocus Group
Started63
Completed62
Not completed1
Withdrew: Lost to follow-up1

Outcome measures

PrimaryIdentification of Concrete Reasons That Affect the Willingness of Black Individuals With Substance Use Disorder (SUD) Lived Experience to Participate in SUD Research.

To conduct focus groups among Black Consumer stakeholders with lived substance use experience to understand the factors that may or may not affect their willingness to participate in prospective substance use disorder (SUD) clinical trials.

Time frame:
Baseline Day 1-15 (prior to Focus Group1) [Approximated time frame]
Reported as:
Number · Number of factors identified
Identification of Concrete Reasons That Affect the Willingness of Black Individuals With Substance Use Disorder (SUD) Lived Experience to Participate in SUD Research.
Number of factors identifiedFocus Group
Have a comprehensivwe understanding of the research1
Receive detailed information clearly and directly from research team1
Researchers' knowledgeable about the research being conductedc1
A friendly and warming response from the research team1
Researchers that represent the participant6s1
Researchers involved in the participant's community1
Must trust the researchers1
Relevance of the research1
A trusted source recommended the research study1
A desire to help others1
Monetary compensation1
The need to learn new things, meet new people, and learn from the experience of others1
Curiosity1
The convenience of virtual participation1

Adverse events

Collected over Adverse Events were not collected.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Focus Group One———

Baseline characteristics

All screened participants were included in the analysis population.

Age, Categorical
Age, Categorical(Participants)Focus Group One
<=18 years0
Between 18 and 65 years54
>=65 years9
Sex: Female, Male
Sex: Female, Male(Participants)Focus Group One
Female29
Male34
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Focus Group One
Hispanic or Latino0
Not Hispanic or Latino63
Unknown or Not Reported0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Focus Group One
American Indian or Alaska Native0
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American63
White0
More than one race0
Unknown or Not Reported0
Region of Enrollment
Region of Enrollment(participants)Focus Group One
United States63
Previous participation in substance/drug abuse prevention research
Previous participation in substance/drug abuse prevention research(Participants)Focus Group One
Yes14
No47
Did not answer2
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Study locations

1 site
  • UT Southwestern Medical Center
    Dallas, Texas 75703, United States
09

References and documents

Publications

  • Magruder KM, Bichun Ouyang, Miller S, Tilley BC. Retention of under-represented minorities in drug abuse treatment studies. Clin Trials. 2009 Jun;6(3):252-60. doi: 10.1177/1740774509105224. PubMed 19528134 ↗
  • Byrne MM, Tannenbaum SL, Gluck S, Hurley J, Antoni M. Participation in cancer clinical trials: why are patients not participating? Med Decis Making. 2014 Jan;34(1):116-26. doi: 10.1177/0272989X13497264. Epub 2013 Jul 29. PubMed 23897588 ↗
  • Murthy VH, Krumholz HM, Gross CP. Participation in cancer clinical trials: race-, sex-, and age-based disparities. JAMA. 2004 Jun 9;291(22):2720-6. doi: 10.1001/jama.291.22.2720. PubMed 15187053 ↗
  • Hedegaard H, Spencer MR, Garnett MF. Increase in Drug Overdose Deaths Involving Cocaine: United States, 2009-2018. NCHS Data Brief. 2020 Oct;(384):1-8. PubMed 33054918 ↗
  • Hayen A, Wanigasekera V, Faull OK, Campbell SF, Garry PS, Raby SJM, Robertson J, Webster R, Wise RG, Herigstad M, Pattinson KTS. Opioid suppression of conditioned anticipatory brain responses to breathlessness. Neuroimage. 2017 Apr 15;150:383-394. doi: 10.1016/j.neuroimage.2017.01.005. Epub 2017 Jan 3. PubMed 28062251 ↗

Study documents

  • Protocol, analysis plan and consent form · Jun 24, 2022

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 12, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05124119
Lead sponsor
University of Texas Southwestern Medical Center
Collaborators
National Institute on Drug Abuse (NIDA)
Responsible party
Madhukar H. Trivedi, MD (Professor of Medicine, University of Texas Southwestern Medical Center) — Principal investigator
First posted
Nov 17, 2021
Start date
Apr 1, 2022
Primary completion
Dec 1, 2022
Completion
Jul 31, 2024
Results posted
Aug 12, 2026
Last update
Aug 12, 2026

Study contacts

Madhukar Trivedi, MD
principal investigator · University of Texas Southwestern Medical Center

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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