An interventional study of TRTME in Opioid Use Disorder, Opioid Use Disorder, Moderate and Opioid Use Disorder, Severe, sponsored by T. John Winhusen, PhD. Enrolling by invitation at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-28.
Sponsored by T. John Winhusen, PhD · Not applicable, Interventional, and Health services research
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Among 1,222 studies in Opioid-Related Disorders with a site in United States — 245 open to participants now, 315 under way, 18 of them phase 3. Opioid-Related Disorders · United States.
Among the 1,222 studies in Opioid-Related Disorders with a site in United States, this one is the 698th largest by planned enrollment of the 1,097 interventional ones that give a count, is one of 83 that started in 2026, is one of 570 with no phase, reaches primary completion later than 117 of the 314 other live ones, and was the 1,205th registered.
1,473 studies on the registry are indexed under Opioid-Related Disorders; 290 are open to participants now.
Browse Opioid-Related Disorders studies →245 of the 1,222 studies in Opioid-Related Disorders with a site in United States are open now. Recruiting first, the newest first:
Washington State University · Sites in United States
Ages 18+
University of Massachusetts, Worcester · Sites in United States
Ages 18+ · Healthy volunteers
Baylor College of Medicine · Sites in United States
Ages 18–64
Yale University · Sites in United States
Ages 25–65 · Healthy volunteers
Adneuris Therapeutics, Inc. · Sites in United States
Ages 18–65
A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →
Of the 210 Opioid-Related Disorders studies recruiting now, 122 (58%) set no upper age limit and 74 (35%) stop at 75 or younger; 14 take children under 18; 53 take healthy volunteers.
This study: 18 Years and older · all sexes · no healthy volunteers.
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1,222 studies; the count open now beside each. This study's row is marked.
A study in two phases is counted once above. Listed by phase, each with its combined phases: Phase 1 162 · Phase 2 245 · Phase 3 99 · Phase 4 79
First in 1988; this study’s year is marked. 83 started in 2026.
By drug class, each counting the studies that test any of its medicines:
This study's planned enrollment of 30 is below the median of 63 across 1,167 interventional studies indexed under Opioid-Related Disorders.
Median enrollment 56 across the 1,097 interventional studies, 85 across the 122 observational. Of the 834 that completed or were terminated, 331 (40%) have results posted.
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132 of 1,222 have an industry lead sponsor. The 10 most frequent:
T. John Winhusen, PhD is the lead sponsor of 6 studies on the registry; 2 are open to participants now.
T. John Winhusen, PhD has 6 studies filed under Opioid-Related Disorders — fewer than ten, so there is no comparison to draw.
128 of the studies in Opioid-Related Disorders with a site in United States that are under way reach primary completion within a year, 9 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT05011266Phase 3New York State Psychiatric InstituteEfficacy of Buprenorphine and XR-Naltrexone Combination for Relapse Prevention in Opioid Use Disorder | 2027-01-01 |
| NCT05834478Phase 3Emory UniversityNon-invasive Vagal Nerve Stimulation in Opioid Use Disorders UH3 | 2027-02 |
| NCT05033028Phase 3NYU Langone HealthSmartphones for Opiate Addiction Recovery | 2027-06-01 |
| NCT05459402Phase 3University of Maryland, BaltimoreDivided or Single Exposure (DOSE) Study | 2027-06-01 |
| NCT05766631Phase 3Friends Research Institute, Inc.Treating Polysubstance Use Using a Novel Digital Technology | 2027-06-30 |
Add all 128 to your calendar (.ics) → With an account.
Among the 1,222 studies in Opioid-Related Disorders with a site in United States, from their registry updates:
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The primary objective of this study is to evaluate the ability of TRTME to increase initiation of MOUD outpatient treatment and MOUD knowledge in hospitalized patients with OUD deemed to be good candidates for MOUD by the UCMC Addiction Consult Team (ACT). The secondary objective is to evaluate the ability of TRTME to decrease stigma and increase drug self-efficacy.
This is an intent-to-treat, two-arm, open-label, pragmatic randomized controlled trial. Eligible participants will be randomized in a 1:1 ratio to TRTME or Control. Participants will receive the assigned intervention following randomization, will complete a post-assessment following treatment receipt, and will complete a follow-up phone call at approximately one month posthospital discharge.
All participants will complete assessments of their opioid-overdose and MOUD knowledge and their risk for experiencing an opioid-overdose during baseline. TRTME participants will be offered a 15-minute intervention in which a trained research staff member reviews personal feedback reports with the recipient to provide information on: 1) the items missed on the knowledge assessment; and 2) their personal overdose risk factors. TRTME participants will also have the opportunity to view short videos from patients talking about their experiences with methadone or buprenorphine treatment. Control participants will be offered two SAMHSA handouts.
Enrollment is expected to take place over a period of approximately 7.5 months. Duration of study participation will be approximately 5 weeks.
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Exclusion Criteria:
Control participants will be offered two SAMHSA handouts: 1) "Opioid Overdose Prevention Toolkit: Safety Advice for Patients and Family Members"; and 2) "Medication-Assisted Treatment for Opioid Addiction: Facts for Families and Friends". These handouts can be offered as physical copies or electronically.
TRTME participants will be offered a 15-minute intervention in which a trained research staff member reviews personal feedback reports with the recipient to provide information on: 1) the items missed on the knowledge assessment; and 2) their personal overdose risk factors. TRTME participants will also have the opportunity to view short videos from patients talking about their experiences with methadone or buprenorphine treatment.
Behavioral: TRTME
The TRTME intervention includes three elements that have all been previously studied by our research team: 1) brief, personally-tailored education to correct inaccurate, common misconceptions about MOUD and to address knowledge gaps about opioid-overdose; 2) with personally-tailored feedback on the individual's risk factors for experiencing an opioid-overdose; and 3) review of MOUD testimonial videos.
Outpatient MOUD initiation
The primary outcome is verified enrollment in outpatient MOUD within 30 days post-discharge. Participants will be asked about their enrollment in MOUD approximately 30 days after their discharge from the hospital. Participants reporting having enrolled in treatment will be asked to provide a release of information for the treatment program to verify date of treatment enrollment.
Time frame: 30 days
MOUD knowledge score
The key secondary outcome is MOUD knowledge as measured by the Opioid Overdose and Treatment Awareness Survey (OOTAS) knowledge evaluation. The OOTAS is comprised of 4 sections: 1) opioid-overdose risk factors; 2) signs of an opioid-overdose; 3) how to respond to an opioid-overdose; and 4) misconceptions about MOUD. The OOTAS has been successfully used to measure MOUD knowledge and knowledge change in three studies. The OOTAS includes 10 true-false questions to assess MOUD knowledge, yielding a potential score of 0-10.Secondary Outcome Measures
Time frame: Immediately after the intervention
MOUD Stigma
There are no existing validated measures for assessing MOUD stigma in patients who are good candidates for MOUD but have not yet entered treatment. The Medication for Opioid Use Disorder Attitudes Scale (MOUD-AS) was created by OpenEvidence based on stigmatizing beliefs about MOUD among patients considering treatment. The MOUD-AS includes 16 items scored from 1 (strongly disagree) to 5 (strongly agree). The total score, which has a potential range of 16-80, is the outcome of interest.
Time frame: Immediately after the intervention
Drug Self-efficacy
Self-efficacy in quitting drug use will be assessed with the Thoughts about abstinence (TAA) instrument. This measure assesses the participant's desire to quit, expected success in quitting and estimated difficulty in avoiding drug use. Our MOUD education intervention has been found to increase expected success in quitting drug use as measured by the TAA.
Time frame: Immediately after the intervention
Opioid-overdose knowledge score
Opioid-overdose knowledge will be measured by the first three sections of the OOTAS. The OOTAS has been successfully used to measure opioid-overdose knowledge and knowledge change in three prior studies conducted with individuals with OUD. The OOTAS includes 31 true-false questions to assess opioid-overdose knowledge, yielding a potential score of 0-31.
Time frame: Immediately after the intervention
Started Aug 2026 (actual). Primary completion is estimated for Feb 2027, 6 months after the start.
Of 464 non-industry interventional studies with no phase under Opioid-Related Disorders, half reached primary completion within 29 months of starting (the median), counting those still running; a quarter within 14 and three quarters within 47. This study's planned 6 months is below that.
Counting every sponsor, half of 495 studies reached it within 29 months; a quarter within 13 and three quarters within 46.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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T. John Winhusen, PhD