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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Substance, Addiction Clear all
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 Jun 10, 2026, 1:41 AM EDT
Recruiting Not applicable Interventional

Circuitry-Guided Smoking Cessation in Schizophrenia (UH3)

NCT05276050
View directory record Official record
Conditions
Smoking Cessation, Nicotine Addiction, Schizophrenia
Interventions
active F8-coil delivered rTMS, active H-coil delivered rTMS
Device
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
22 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 11, 2026 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Buprenorphine and Methadone for Opioid Dependent Chronic Pain Patients

NCT00879996
View directory record Official record
Conditions
Opiate Addiction
Interventions
Methadone, Buprenorphine/naloxone
Drug
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
2
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Aug 6, 2012 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Phase 1 Interventional Results available

Clavulanic Acid (CLAV) and Cocaine Interaction Safety Study

NCT02563769
View directory record Official record
Conditions
Cocaine Dependence, Cocaine Addiction, Cocaine Abuse, Cocaine-Related Disorders
Interventions
Clavulanic acid, Intravenous cocaine, Placebo
Drug
Lead sponsor
Temple University
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 2, 2023 · Synced Jun 10, 2026, 1:41 AM EDT
Completed No phase listed Observational

A Prospective Investigation of the Risks of Opioid Misuse, Abuse, and Addiction Among Patients Treated With Opioids for the Treatment of Chronic Pain

NCT02751762
View directory record Official record
Conditions
Opioid-Related Disorders, Opiate Addiction, Narcotic Abuse, Drug Abuse
Interventions
Observation Only
Other
Lead sponsor
Member Companies of the Opioid PMR Consortium
Industry
Eligibility
18 Years to 79 Years
Enrollment
3,600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
2
States / cities
Portland, Oregon • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 28, 2025 · Synced Jun 10, 2026, 1:41 AM EDT
Recruiting Early Phase 1 Interventional

Advancing VR-based Attentional Bias as a Biomarker for Tobacco Use Disorder

NCT06582888
View directory record Official record
Conditions
Nicotine Addiction, Craving
Interventions
Varenicline Tartrate, Placebo
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
22 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Mar 15, 2026 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Strategies to Reduce Addiction Stigma Among Health Professionals

NCT05127707
View directory record Official record
Conditions
Opioid Use Disorder, Substance Use Disorders, Stigma, Social
Interventions
Words Matter - Visual Campaign, Words Matter - Visual Campaign & Narrative Vignette (Messenger: Person with Opioid Use Disorder) Experimental: Words Matter - Visual Campaign & Narrative Vignette (Messenger: Clinician), Words Matter - Visual Campaign & Narrative Vignette (Messenger: Clinician), Words Matter - Visual Campaign & Narrative Vignette (Messenger: Health System Administrator), Medication Treatment for Opioid Use Disorder Works - Visual Campaign, Medication Treatment for Opioid Use Disorder Works - Visual Campaign & Narrative Vignette (Messenger: Person with Opioid Use Disorder), Medication Treatment for Opioid Use Disorder Works - Visual Campaign & Narrative Vignette (Messenger: Clinician), Medication Treatment for Opioid Use Disorder Works - Visual Campaign & Narrative Vignette (Messenger: Health System Administrator)
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years and older
Enrollment
1,842 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 18, 2021 · Synced Jun 10, 2026, 1:41 AM EDT
Withdrawn Not applicable Interventional

A Comprehensive Peer Mentor-based Disease Management Program for Medically Complex Substance Users

NCT00993395
View directory record Official record
Conditions
Substance Addiction
Interventions
peer mentor-based disease management
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 9, 2018 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Cigar Flavor in Dual Users

NCT04487470
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Flavored filtered cigars, Unflavored filtered cigars
Other
Lead sponsor
UConn Health
Other
Eligibility
21 Years to 34 Years
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 6, 2025 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Not applicable Interventional Results available

Cognitive Training for Nicotine Dependence

NCT01252966
View directory record Official record
Conditions
Tobacco Use Disorder, Nicotine Addiction
Interventions
Cognitive Training, Control training
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
213 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 15, 2017 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Phase 4 Interventional Results available

A Pilot Study of Treating HCV at a Psychiatrist-staffed Outpatient Addiction Clinic

NCT03235154
View directory record Official record
Conditions
Hepatitis C, Chronic, Hepatitis C, Opiate Dependence
Interventions
sofosbuvir/velpatasvir
Drug
Lead sponsor
Community Research Initiative of New England
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Somerville, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 12, 2021 · Synced Jun 10, 2026, 1:41 AM EDT
Enrolling by invitation Not applicable Interventional

LDART for Alcohol Use Disorder

NCT07221383
View directory record Official record
Conditions
Alcohol Use Disorder, Hazardous Alcohol Use
Interventions
LDART, Psychoeducational control
Device · Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Not applicable Interventional

Sequenced vs. Integrated Delivery of Treatment for Adolescent Depression and SUD

NCT00680966
View directory record Official record
Conditions
Adolescent, Depression, Substance Use Disorders
Interventions
Adolescent Coping With Depression/Functional Family Therapy
Behavioral
Lead sponsor
Oregon Research Institute
Other
Eligibility
13 Years to 17 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 11, 2014 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Human Perception of Odors and Odor Blockers

NCT06191419
View directory record Official record
Conditions
Tobacco Smoking, Smoking Behaviors
Interventions
Odorants
Other
Lead sponsor
Tim McClintock
Other
Eligibility
18 Years to 60 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 29, 2025 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Extinction Updating in Reconsolidation

NCT02154685
View directory record Official record
Conditions
Nicotine Addiction, Smoking Cessation
Interventions
Retrieval-Extinction, Non-Retrieval Extinction
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 1, 2015 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Phase 2 Interventional

Behavioral and Subjective Efficacy of Ramelteon in Subjects With a History of Polydrug Abuse

NCT00671632
View directory record Official record
Conditions
Drug Abuse
Interventions
Ramelteon, triazolam, and placebo (56 possible combinations total)
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 60 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 27, 2012 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Not applicable Interventional

Improving Substance Abuse Treatment Aftercare Adherence and Outcome

NCT00057187
View directory record Official record
Conditions
Substance Dependence, Compliance, Treatment Outcome
Interventions
Contracting, Prompting and Reinforcing
Behavioral
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
Not listed
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2005
U.S. locations
1
States / cities
Salem, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 6, 2015 · Synced Jun 10, 2026, 1:41 AM EDT
Recruiting Not applicable Interventional

Written Exposure Therapy for Veterans With SUD and PTSD

NCT05327504
View directory record Official record
Conditions
Substance Use Disorders, Posttraumatic Stress Disorder
Interventions
Written Exposure Therapy, Neutral Topic Writing
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Phase 1 Interventional

Safety Study of Intravenous 6β-Naltrexol (AIKO-150) in Opioid-Dependent Subjects

NCT00829777
View directory record Official record
Conditions
Opiate Addiction
Interventions
6β-Naltrexol escalating doses from 0.05-0.5 mg IV
Drug
Lead sponsor
California Pacific Medical Center Research Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 15, 2009 · Synced Jun 10, 2026, 1:41 AM EDT
Terminated Phase 4 Interventional Results available

Anxiety in Recovering Opiate Dependence

NCT00668265
View directory record Official record
Conditions
Generalized Anxiety Disorder, Comorbid Opiate Dependence in Remission, Status Post Methadone-Maintenance Treatment
Interventions
Quetiapine
Drug
Lead sponsor
Beth Israel Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 17, 2013 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Not applicable Interventional Results available

Personally-Tailored Opioid-overdose and Medication for Opioid Use Disorder (MOUD) Education (TOME) for Pregnant and Postpartum Persons in MOUD

NCT06262347
View directory record Official record
Conditions
Opioid Use Disorder, Pregnancy Related, Substance Use, Drug Abuse, Drug Abuse in Pregnancy, Drug Addiction
Interventions
Personally-Tailored Opioid-overdose and Medication for opioid use disorder (MOUD) Education (TOME), Control
Behavioral
Lead sponsor
T. John Winhusen, PhD
Other
Eligibility
18 Years and older · Female only
Enrollment
131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
6
States / cities
Jacksonville, Florida • Pittsburgh, Pennsylvania • Charleston, South Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated May 10, 2025 · Synced Jun 10, 2026, 1:41 AM EDT
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers

VK4-116 Phase I Study With Food-Effect

NCT06808932
View directory record Official record
Conditions
Opioid Dependence, Opioid Use Disorder (OUD)
Interventions
VK4-116, Placebo
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 60 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Repetitive Transcranial Magnetic Stimulation (rTMS) for Nicotine Addiction

NCT02401672
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Transcranial magnetic stimulation
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 60 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Sep 20, 2020 · Synced Jun 10, 2026, 1:41 AM EDT
Completed Not applicable Interventional

Tech-Enabled CM for AUD at Scale

NCT04581499
View directory record Official record
Conditions
Alcohol Use Disorder, Alcohol Dependence, Drug Dependence
Interventions
DynamiCare Motivation Support Program, Untreated or Routine Care Control Group
Combination Product · Other
Lead sponsor
DynamiCare Health
Industry
Eligibility
18 Years and older
Enrollment
236 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 1, 2025 · Synced Jun 10, 2026, 1:41 AM EDT