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Showing 1–24 of 241 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Abuse Opioids Clear all
Completed No phase listed Observational

PCORnet Opioid Surveillance Study

NCT03743493
View directory record Official record
Conditions
Opioid Use, Opioid Abuse
Interventions
Not listed
Lead sponsor
Louisiana Public Health Institute
Other
Eligibility
Not listed
Enrollment
15,438,284 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
24
States / cities
Irvine, California • La Jolla, California • Los Angeles, California + 15 more
Source: ClinicalTrials.gov public record
Updated Nov 11, 2020 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Not applicable Interventional

Optimizing Outcomes Using Suboxone for Opiate Dependence

NCT00591617
View directory record Official record
Conditions
Opioid Dependency
Interventions
Psychosocial treatment plus Suboxone pharmacotherapy
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
15 Years and older
Enrollment
202 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 28, 2013 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Not applicable Interventional

Recovery Housing and Drug Abuse Treatment Outcome

NCT03278496
View directory record Official record
Conditions
Mental and Behavioral Disorders Due to Use of Cocaine: Harmful Use, Opiate Addiction
Interventions
Recovery Housing plus Counseling, Usual Care Referral, Recovery Housing Only
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 55 Years
Enrollment
243 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 10, 2017 · Synced Sep 4, 2026, 5:14 AM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers

A Comparison of Plasma Concentrations of Hydrocodone and Acetaminophen After Administration of a New and a Marketed Tablet Formulation Under Fasted and Fed Conditions in Healthy Adults

NCT03137017
View directory record Official record
Conditions
Opioid-Related Disorders, Pain, Acute, Pain, Postoperative
Interventions
Norco 5Mg-325Mg Tablet, GRT7014 - Abuse Deterrent Tablet
Drug
Lead sponsor
Grünenthal GmbH
Industry
Eligibility
18 Years to 55 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 20, 2017 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Early Phase 1 Interventional Results available

Caffeine and Neurologic Recovery Following Surgery and General Anesthesia

NCT03577730
View directory record Official record
Conditions
Pain, Postoperative
Interventions
Caffeine Citrate, Dextrose Water
Drug
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 5, 2021 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Reinforcing Effects of Marijuana and Opioids

NCT05485012
View directory record Official record
Conditions
Marijuana Use, Opioid Use
Interventions
Marijuana, Opioid
Drug
Lead sponsor
Shanna Babalonis, PhD
Other
Eligibility
18 Years to 50 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Not applicable Interventional Results available

A Patient-Centered Intervention to Improve Opioid Safety

NCT02791399
View directory record Official record
Conditions
Opioid Safety, Prescription Opioid Misuse, Chronic Pain
Interventions
ISOP Intervention with the Nurse Care Manager
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
286 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 26, 2023 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Phase 2 Interventional Results available

Naltrexone and Memantine Effects on Alcohol Drinking Behaviors

NCT01519063
View directory record Official record
Conditions
Alcohol Drinking
Interventions
Naltrexone and memantine first, Naltrexone and Placebo first
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 55 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 8, 2020 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Phase 2 Interventional Results available

Effects of Ibudilast on Oxycodone Self-administration in Opioid Abusers

NCT01740414
View directory record Official record
Conditions
Opioid Abuse, Opioid Dependence
Interventions
MN-166 (50 mg) First, Placebo First
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 55 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 16, 2017 · Synced Sep 4, 2026, 5:14 AM EDT
Completed No phase listed Observational Results available

TAU Opioid Use Outcomes Following Discharge From Detoxification and Short Term Residential Programs Affiliated With CTN-0051

NCT02730403
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
Treatment As Usual
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
211 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
5
States / cities
Tarzana, California • Jacksonville, Florida • Fall River, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 26, 2020 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Not applicable Interventional Results available

PRescribing INterventions for Chronic Pain Via the Electronic Health Record Study - Opioid-Naive Population

NCT04601493
View directory record Official record
Conditions
Opioid-use Disorder, Opioid Use, Opioid Abuse
Interventions
Choice Architecture Nudge, PMP Integration & Nudge
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
Not listed
Enrollment
631 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 25, 2024 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Phase 1 Interventional

Study of the Treatment of Experimental Pain in Opioid Dependent Persons on Methadone or Buprenorphine Maintenance

NCT01642030
View directory record Official record
Conditions
Opioid Dependence, Pain, Addiction
Interventions
Placebo, Hydromorphone, Buprenorphine
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 55 Years
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 10, 2017 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Phase 1Phase 2 Interventional Results available

The Discriminative Effects of Tramadol in Humans

NCT00499746
View directory record Official record
Conditions
Opioid Abuse, Opioid Addiction, Stimulant Abuse, Stimulant Addiction
Interventions
tramadol, placebo, Hydromorphone, Methylphenidate
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
21 Months to 55 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 16, 2017 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Not applicable Interventional Results available

AESOPS Trial 2 (AESOPS-2): Availability of Opioid Harm

NCT04758637
View directory record Official record
Conditions
Opioid Abuse
Interventions
Overdose Notification
Behavioral
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 6, 2025 · Synced Sep 4, 2026, 5:14 AM EDT
Recruiting No phase listed Observational

fMRI and Opioid Abstinence

NCT06651333
View directory record Official record
Conditions
Drug Use Disorder, Opioid Dependence, Opioid-Related Disorders, Opioid Use, Opioid Abuse
Interventions
fMRI
Diagnostic Test
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
2
States / cities
Hartford, Connecticut • New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Not applicable Interventional

Opioid Education in Total Knee Arthroplasty

NCT05593341
View directory record Official record
Conditions
Arthropathy of Knee, Post Operative Pain, Opioid Use, Opioid Abuse, Opioid Misuse
Interventions
Opioid education in person, Opioid education via video
Other
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years to 80 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 26, 2024 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Phase 1 Interventional Results available

Opioid and Cannabinoid Interactions

NCT03705559
View directory record Official record
Conditions
Marijuana Usage, Opioid Use
Interventions
Vaporized Marijuana, Opioid Agonist, Placebo
Drug
Lead sponsor
Shanna Babalonis, PhD
Other
Eligibility
18 Years to 50 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 9, 2025 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Not applicable Interventional Results available

A Tailored, Peer-delivered Intervention to Reduce Recurring Opioid Overdoses

NCT02922959
View directory record Official record
Conditions
Drug Overdose, Opioid-Related Disorders, Drug Addiction, Drug Abuse, Substance Abuse
Interventions
Peer Intervention, naloxone nasal spray kit, Personally-tailored opioid overdose prevention education (information packet)
Behavioral · Drug
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 23, 2020 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Not applicable Interventional Results available

Employment-based Reinforcement of Naltrexone Ingestion and Abstinence

NCT00149669
View directory record Official record
Conditions
Cocaine-Related Disorders, Heroin Dependence, Opioid-Related Disorders, Substance Abuse, Intravenous
Interventions
employment-based reinforcement
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 65 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 13, 2017 · Synced Sep 4, 2026, 5:14 AM EDT
Not listed Not applicable Interventional

University of Houston Drug Abuse Research Development Program II

NCT03557632
View directory record Official record
Conditions
Heroin Dependence
Interventions
Virtual Reality Cue Exposure Therapy, Relapse Prevention Drug Education
Behavioral
Lead sponsor
University of Houston
Other
Eligibility
18 Years to 64 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 5, 2018 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Prazosin and Naltrexone (PaN) Study for Veterans With Alcohol Use Disorders

NCT02322047
View directory record Official record
Conditions
Alcohol Use Disorder, Posttraumatic Stress Disorder (PTSD)
Interventions
Prazosin, Naltrexone, Placebo (Prazosin), Placebo (Naltrexone)
Drug
Lead sponsor
Seattle Institute for Biomedical and Clinical Research
Other
Eligibility
18 Years to 80 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 28, 2020 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Abuse Potential of Oxymorphone Compared to Other Mu Opioid Agonists.

NCT03389750
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
Intravenous Challenge Drug
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 55 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Lexington, Kentucky • New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 6, 2023 · Synced Sep 4, 2026, 5:14 AM EDT
Terminated Early Phase 1 Interventional

Reducing the Abuse of Opioids in Drug Users

NCT03837860
View directory record Official record
Conditions
Opioid Abuse, Unspecified, Opioid Dependence
Interventions
Oxycodone/Placebo, Oxycodone/Risperidone, Oxycodone/Ziprasidone
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
21 Years to 65 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Feb 14, 2022 · Synced Sep 4, 2026, 5:14 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

The Efficacy of Methadyl Acetate (LAAM) and Contingency Management Procedures for Treating Dual Opioid and Cocaine Abuse - 1

NCT00158288
View directory record Official record
Conditions
Behavior Therapy, Cocaine, Contingency Management, Heroin Dependence, LAAM, Opioid Dependence, Substance-Related Disorders, Alcohol & Drug Use
Interventions
LAAM
Behavioral
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
21 Years to 55 Years
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1997 – 2001
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Sep 4, 2026, 5:14 AM EDT