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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Addiction, Opioid Clear all
Completed Phase 2 Interventional

Buprenorphine Pharmacology Related to Addiction Treatment - 21

NCT00000239
View directory record Official record
Conditions
Opioid-Related Disorders
Interventions
Buprenorphine
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
0 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Aug 16, 2005 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Not applicable Interventional

RETAIN: Retaining Opioid Users Entering Medication Assisted Treatment and Encouraging HCV/HIV Testing

NCT03411265
View directory record Official record
Conditions
Opioid-Related Disorders, Opioid-use Disorder, Drug Addiction, Substance Use Disorders
Interventions
self-administered, e-health application
Other
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 9, 2019 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Phase 2 Interventional Results available

Buprenorphine's Dose Response Curve

NCT00460239
View directory record Official record
Conditions
Opioid-related Disorders
Interventions
Buprenorphine, Morphine, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 2, 2017 · Synced Sep 28, 2026, 5:33 AM EDT
Withdrawn Phase 2 Interventional

Buprenorphine/Naloxone Treatment for Opioid Dependence-Experiment III) - 3

NCT00000328
View directory record Official record
Conditions
Heroin Dependence, Opioid-Related Disorders
Interventions
Opioid-Related Disorders
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated May 3, 2017 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

An Innovative Intervention for OUD Treatment

NCT04325659
View directory record Official record
Conditions
Opioid-Related Disorders, Opioid Dependence, Opioid Addiction, Opioid Withdrawal
Interventions
Bridge Device, Lofexidine, Placebo, Sham Bridge Device
Device · Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Change the Cycle: An RCT to Prevent Injection Initiation

NCT02774954
View directory record Official record
Conditions
Substance Abuse, Intravenous, HIV, Heroin Dependence, Opioid Dependence, Cocaine Dependence, Amphetamine Dependence
Interventions
Change the Cycle
Behavioral
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
979 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
2
States / cities
Los Angeles, California • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 19, 2023 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Memantine-enhanced Buprenorphine Treatment for Opioid-dependent Young Adults

NCT01052662
View directory record Official record
Conditions
Opioid Dependence
Interventions
Memantine, Placebo
Drug
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years to 25 Years
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 31, 2015 · Synced Sep 28, 2026, 5:33 AM EDT
Completed No phase listed Observational

ALK21-025: Vivitrol's Cost and Treatment Outcomes Registry

NCT01422837
View directory record Official record
Conditions
Opioid Dependence
Interventions
Not listed
Lead sponsor
Alkermes, Inc.
Industry
Eligibility
18 Years and older
Enrollment
403 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
31
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Ben Lomond, California + 26 more
Source: ClinicalTrials.gov public record
Updated Nov 15, 2018 · Synced Sep 28, 2026, 5:33 AM EDT
Recruiting Phase 2 Interventional

MDMA for Co-occurring PTSD and OUD After Childbirth

NCT05219175
View directory record Official record
Conditions
Stress Disorders, Post-Traumatic, Opioid Use Disorder
Interventions
MDMA Assisted Therapy
Drug
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older · Female only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Mar 15, 2026 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Phase 2 Interventional Results available

Gabapentin Treatment of Benzodiazepine Abuse in Methadone Maintenance Patients

NCT00420771
View directory record Official record
Conditions
Benzodiazepine Dependence, Opioid Dependence
Interventions
Gabapentin, Placebo
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Long Island City, New York
Source: ClinicalTrials.gov public record
Updated Apr 23, 2019 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Outcomes of Opioid Addicted Prisoners With Extended-Release Injectable Naltrexone

NCT02617628
View directory record Official record
Conditions
Opiate Dependence
Interventions
extended release naltrexone
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
146 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 27, 2021 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Not applicable Interventional Results available

Consortium to Disseminate and Understand Implementation of Opioid Use Disorder Treatment

NCT04178551
View directory record Official record
Conditions
Opioid Medication Assisted Treatment
Interventions
Implementation Facilitation
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
Not listed
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
11
States / cities
Birmingham, Alabama • West Los Angeles, California • Aurora, Colorado + 8 more
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Phase 2 Interventional

Evaluation of L-alpha-acetylmethadol (LAAM) in Methadone Patients - 5

NCT00000356
View directory record Official record
Conditions
Opioid-Related Disorders, Substance-Related Disorders
Interventions
LAAM
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
1991 – 1992
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Phase 4 Interventional

Determine the Safety of a Sublingual Tablet Formulation of Buprenorphine and Naloxone by Extending the Combination Tablet Availability to Physicians in Office-Based Practice

NCT00007527
View directory record Official record
Conditions
Opiate Dependence
Interventions
naloxone, buprenorphine
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
15 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2002
U.S. locations
2
States / cities
New York, New York • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 20, 2009 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Phase 3 Interventional Results available

Efficacy, Safety and Dose-Response Study Followed by Open-Label Study of Lofexidine Treatment of Opioid Withdrawal

NCT01863186
View directory record Official record
Conditions
Opioid Dependence, Acute Opioid Withdrawal Syndrome
Interventions
Lofexidine HCl, Placebo, Open Label Lofexidine HCL
Drug
Lead sponsor
USWM, LLC (dba US WorldMeds)
Industry
Eligibility
18 Years and older
Enrollment
603 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
18
States / cities
Clovis, California • Escondido, California • San Diego, California + 15 more
Source: ClinicalTrials.gov public record
Updated Mar 21, 2022 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Not applicable Interventional

Neurocognitive Empowerment for Addiction Treatment (NEAT) in Opioid Use Disorder and Amphetamine Use Disorder

NCT03922646
View directory record Official record
Conditions
Opioid-use Disorder, Amphetamine Use Disorders
Interventions
Neurocognitive Empowerment for Addiction Treatment (NEAT), Active Control
Behavioral
Lead sponsor
Laureate Institute for Brain Research, Inc.
Other
Eligibility
18 Years to 65 Years
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Tulsa, Oklahoma
Source: ClinicalTrials.gov public record
Updated Aug 27, 2023 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Not applicable Interventional

Fluoxetine to Reduce Cocaine Use in Cocaine and Opioid Addicts

NCT00142779
View directory record Official record
Conditions
Cocaine-Related Disorders, Opioid-Related Disorders
Interventions
Fluoxetine
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 60 Years
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2006
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Sep 28, 2026, 5:33 AM EDT
Terminated Not applicable Interventional Results available

Collaborative Care for Opioid Dependence And Pain Pilot Study

NCT04121546
View directory record Official record
Conditions
Opioid Dependence, Chronic Pain
Interventions
Telecare Intervention
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 29, 2024 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Phase 1 Interventional

Drug Discrimination in Methadone-Maintained Humans Study 3

NCT01068847
View directory record Official record
Conditions
Drug Dependence
Interventions
2-4 of the drugs listed below
Drug
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 65 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Mar 6, 2013 · Synced Sep 28, 2026, 5:33 AM EDT
Recruiting Not applicable Interventional

Peer Recovery to Improve Polysubstance Use and Mobile Telemedicine Retention

NCT05973838
View directory record Official record
Conditions
Polysubstance Addiction, Opioid Medication Assisted Treatment, Treatment Adherence, Retention in Care, Substance-Related Disorders
Interventions
Peer-Delivered Behavioral Activation ("Peer Activate")
Behavioral
Lead sponsor
University of Maryland, College Park
Other
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
4
States / cities
Washington D.C., District of Columbia • Baltimore, Maryland • College Park, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 28, 2026, 5:33 AM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Measuring Acute Drug Demand in Humans

NCT05829655
View directory record Official record
Conditions
Opioid Use Disorder, Opioid Dependence
Interventions
Drug A (Blinded Drug), Drug B (Blinded Drug), Drug C (Blinded Drug), Drug D (Blinded Drug), Suvorexant (20mg/day), Placebo
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 65 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Sep 28, 2026, 5:33 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Addiction Treatment in Russia: Oral vs. Naltrexone Implant

NCT00218426
View directory record Official record
Conditions
Heroin Dependence, Opioid-Related Disorders
Interventions
naltrexone implant, oral naltrexone, oral placebo naltrexone, placebo implant
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 50 Years
Enrollment
306 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 17, 2019 · Synced Sep 28, 2026, 5:33 AM EDT
Terminated Not applicable Interventional Results available

Repetitive Transcranial Magnetic Stimulation for Opiate Use Disorder

NCT03538444
View directory record Official record
Conditions
Opiate Dependence, Chronic Pain
Interventions
Repetitive Transcranial Magnetic Stimulation, Sham rTMS
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Feb 13, 2022 · Synced Sep 28, 2026, 5:33 AM EDT
Withdrawn Not applicable Interventional

Needle-X: Usability Testing of a Smartphone Application

NCT03665298
View directory record Official record
Conditions
Opioid Dependence
Interventions
Smartphone Application
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 1, 2020 · Synced Sep 28, 2026, 5:33 AM EDT