Under-representation of key demographic groups in opioid use disorder trials

Background: The extent to which clinical trials of medications for opioid use disorder (MOUD) are representative or not is unknown. Some patient characteristics modify MOUD effectiveness; if these same characteristics differ in distribution between the trial population and usual-care population, thi...

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Main Authors: Kara E. Rudolph, Matthew Russell, Sean X. Luo, John Rotrosen, Edward V. Nunes
Format: Article
Language:English
Published: Elsevier 2022-09-01
Series:Drug and Alcohol Dependence Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2772724622000592
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author Kara E. Rudolph
Matthew Russell
Sean X. Luo
John Rotrosen
Edward V. Nunes
author_facet Kara E. Rudolph
Matthew Russell
Sean X. Luo
John Rotrosen
Edward V. Nunes
author_sort Kara E. Rudolph
collection DOAJ
description Background: The extent to which clinical trials of medications for opioid use disorder (MOUD) are representative or not is unknown. Some patient characteristics modify MOUD effectiveness; if these same characteristics differ in distribution between the trial population and usual-care population, this could contribute to lack of generalizability—a discrepancy between trial and usual-care effectiveness. Our objective was to identify interpretable, multidimensional subgroups who were prescribed MOUD in substance use treatment programs in the US but who were not represented or under-represented by clinical trial participants. Methods: This was a secondary descriptive analysis of trial and real-world data. The trial data included twenty-seven US opioid treatment programs in the National Drug Abuse Treatment Clinical Trials Network, N=2,199 patients. The real-world data included US substance use treatment programs that receive public funding, N=740,015 patients. We characterized real-world patient populations who were non-represented and under-represented in the trial data in terms of sociodemographic and clinical characteristics that could modify MOUD effectiveness. Results: We found that 10.7% of MOUD patients in TEDS-A were not represented in the three clinical trials. As expected, pregnant MOUD patients (n=19,490) were not represented. Excluding pregnancy, education and marital status from the characteristics, 2.6% of MOUD patients were not represented. Patients aged 65 years and older (n=11,204), and those 50-64 years who identified as other (non-White, non-Black, and non-Hispanic) race/ethnicity or multi-racial (n=7,281) were under-represented. Conclusions: Quantifying and characterizing non- or under-represented subgroups in trials can provide the data necessary to improve representation in future trials and address research-to-practice gaps.
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spelling doaj.art-d3c8d4ca4afc40628ddbad3b7f4a18a42022-12-22T04:24:45ZengElsevierDrug and Alcohol Dependence Reports2772-72462022-09-014100084Under-representation of key demographic groups in opioid use disorder trialsKara E. Rudolph0Matthew Russell1Sean X. Luo2John Rotrosen3Edward V. Nunes4Corresponding author. Tel.: +12123422926.; Department of Epidemiology, Columbia University, 722 W 168th St, Room 522, New York, NY 10032, United StatesDepartment of Epidemiology, Columbia University, 722 W 168th St, Room 522, New York, NY 10032, United StatesDepartment of Psychiatry, School of Medicine, Columbia University, and New York State Psychiatric Institute, New York, New York, United StatesDepartment of Psychiatry, New York University Grossman School of Medicine, New York, New York, United StatesDepartment of Psychiatry, School of Medicine, Columbia University, and New York State Psychiatric Institute, New York, New York, United StatesBackground: The extent to which clinical trials of medications for opioid use disorder (MOUD) are representative or not is unknown. Some patient characteristics modify MOUD effectiveness; if these same characteristics differ in distribution between the trial population and usual-care population, this could contribute to lack of generalizability—a discrepancy between trial and usual-care effectiveness. Our objective was to identify interpretable, multidimensional subgroups who were prescribed MOUD in substance use treatment programs in the US but who were not represented or under-represented by clinical trial participants. Methods: This was a secondary descriptive analysis of trial and real-world data. The trial data included twenty-seven US opioid treatment programs in the National Drug Abuse Treatment Clinical Trials Network, N=2,199 patients. The real-world data included US substance use treatment programs that receive public funding, N=740,015 patients. We characterized real-world patient populations who were non-represented and under-represented in the trial data in terms of sociodemographic and clinical characteristics that could modify MOUD effectiveness. Results: We found that 10.7% of MOUD patients in TEDS-A were not represented in the three clinical trials. As expected, pregnant MOUD patients (n=19,490) were not represented. Excluding pregnancy, education and marital status from the characteristics, 2.6% of MOUD patients were not represented. Patients aged 65 years and older (n=11,204), and those 50-64 years who identified as other (non-White, non-Black, and non-Hispanic) race/ethnicity or multi-racial (n=7,281) were under-represented. Conclusions: Quantifying and characterizing non- or under-represented subgroups in trials can provide the data necessary to improve representation in future trials and address research-to-practice gaps.http://www.sciencedirect.com/science/article/pii/S2772724622000592Trial representationExternal validityGeneralizabilityMOUDClinical Trials
spellingShingle Kara E. Rudolph
Matthew Russell
Sean X. Luo
John Rotrosen
Edward V. Nunes
Under-representation of key demographic groups in opioid use disorder trials
Drug and Alcohol Dependence Reports
Trial representation
External validity
Generalizability
MOUD
Clinical Trials
title Under-representation of key demographic groups in opioid use disorder trials
title_full Under-representation of key demographic groups in opioid use disorder trials
title_fullStr Under-representation of key demographic groups in opioid use disorder trials
title_full_unstemmed Under-representation of key demographic groups in opioid use disorder trials
title_short Under-representation of key demographic groups in opioid use disorder trials
title_sort under representation of key demographic groups in opioid use disorder trials
topic Trial representation
External validity
Generalizability
MOUD
Clinical Trials
url http://www.sciencedirect.com/science/article/pii/S2772724622000592
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