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Showing 1–24 of 3,216 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 4 Interventional

The Kentucky Viral Hepatitis Treatment Study

NCT03949764
View directory record Official record
Conditions
Hepatitis C, Opioid-Related Disorders, Injection Drug Use
Interventions
Sofosbuvir/velpatasvir (Epclusa®)
Drug
Lead sponsor
Jennifer Havens
Other
Eligibility
18 Years and older
Enrollment
374 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Hazard, Kentucky
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Jul 21, 2026, 11:14 AM EDT
Completed Not applicable Interventional Results available

PRescribing INterventions for Chronic Pain Via the Electronic Health Record Study - Primary Care Providers

NCT04601506
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
472 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 26, 2024 · Synced Jul 21, 2026, 11:14 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers Results available

Opioid Analgesic Reduction Study

NCT04452344
View directory record Official record
Conditions
Opioid Use
Interventions
opioid-containing analgesic, two over-the-counter analgesics
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years and older
Enrollment
1,815 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
5
States / cities
Chicago, Illinois • Baltimore, Maryland • Ann Arbor, Michigan + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Jul 21, 2026, 11:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Strategies: Motivational Interviewing/Psychoeducation

NCT03458299
View directory record Official record
Conditions
Alcohol Use, Underage, Substance Use, Underage Drinking
Interventions
Motivational Interviewing, Psychoeducation
Behavioral
Lead sponsor
Pacific Institute for Research and Evaluation
Other
Eligibility
13 Years to 20 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Valley Center, California
Source: ClinicalTrials.gov public record
Updated Mar 16, 2022 · Synced Jul 21, 2026, 11:14 AM EDT
Recruiting Phase 2 Interventional

Cannabidiol and Alcohol Use Disorder Phenotypes

NCT07279558
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
Full-Spectrum Cannabidiol (CBD), Broad-Spectrum Cannabidiol (CBD), Placebo
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
21 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Jul 21, 2026, 11:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Substance Use Adaptation of Fathering Through Change

NCT04532619
View directory record Official record
Conditions
Parenting, Substance Use
Interventions
Fathering Through Change
Behavioral
Lead sponsor
University of Oregon
Other
Eligibility
18 Years and older · Male only
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 7, 2024 · Synced Jul 21, 2026, 11:14 AM EDT
Not yet recruiting Phase 2 Interventional

Daridorexant for People With Insomnia and Alcohol Use Disorder Study

NCT07701928
View directory record Official record
Conditions
Alcohol Use Disorder, Insomnia
Interventions
Daridorexant, Placebo, Brief Counseling, MEMS and Medication Accounting, Contingency Management for Medication Adherence
Drug · Behavioral · Device
Lead sponsor
Sterling McPherson
Other
Eligibility
18 Years and older
Enrollment
205 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Spokane, Washington
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Jul 21, 2026, 11:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Kentucky Communities and Researchers Engaging to Halt the Opioid Epidemic (CARE2HOPE)

NCT04134767
View directory record Official record
Conditions
Substance Use, HIV Infections, HCV Infection, Sexually Transmitted Infections (Not HIV or Hepatitis), Overdose, Drug, Opioid Use
Interventions
Health Linkage, Overdose Education
Behavioral
Lead sponsor
April M Young
Other
Eligibility
18 Years and older
Enrollment
234 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Dec 20, 2023 · Synced Jul 21, 2026, 11:14 AM EDT
Recruiting Phase 3 Interventional

Non-invasive Vagal Nerve Stimulation in Opioid Use Disorders UH3

NCT05834478
View directory record Official record
Conditions
Withdrawal Symptoms, Opioid Use Disorder, Opioid Use
Interventions
Transcutaneous Cervical Vagal Nerve Stimulation, Sham Stimulation, [F-18]Fallypride
Device · Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 75 Years
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
6
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Jul 21, 2026, 11:14 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Reduced Nicotine Cigarette Purchasing Decisions

NCT04999644
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Full Nicotine Cigarettes, Reduced Nicotine Cigarettes, Average Nicotine Expectancy, Very Low Nicotine Expectancy
Drug · Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years and older
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 8, 2024 · Synced Jul 21, 2026, 11:14 AM EDT
Recruiting Not applicable Interventional

Neuromodulation and Cognitive Training for Substance Use Disorders

NCT04426214
View directory record Official record
Conditions
Stimulant Use, Alcohol Use Disorder
Interventions
tDCS, Cognitive Training
Device · Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 25, 2025 · Synced Jul 21, 2026, 11:14 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Mortality Reductions Based on AUD/Heavy Alcohol Use, HIV Risk, and Cardiovascular Risk

NCT05828849
View directory record Official record
Conditions
Cardiovascular Disease, Alcohol Use Disorder, HIV Risk, Substance Use Disorders
Interventions
Navigation, compensation, and personalization
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
35 Years to 64 Years
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 2, 2026 · Synced Jul 21, 2026, 11:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

SARA - Substance Abuse Research Assistant

NCT03255317
View directory record Official record
Conditions
Substance Use
Interventions
Reinforcers, Notifications
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
14 Years to 24 Years
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 17, 2018 · Synced Jul 21, 2026, 11:14 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Nicotine Regulation for Dual Users of E-cigarettes and Cigarettes

NCT06614504
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Varying the nicotine content of cigarettes, Varying the nicotine content of e-cigarettes
Other
Lead sponsor
University of Vermont
Other
Eligibility
21 Years and older
Enrollment
308 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
2
States / cities
Providence, Rhode Island • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Jun 26, 2025 · Synced Jul 21, 2026, 11:14 AM EDT
Completed Not applicable Interventional

STD Risk Reduction for Heterosexual Methamphetamine Users

NCT00344214
View directory record Official record
Conditions
Substance-Related Disorders, HIV Infections, Sexually Transmitted Diseases
Interventions
Tri-focal cognitive behavioral therapy - social skills training (CBTSS) counseling program, Standard care
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
432 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Sep 27, 2012 · Synced Jul 21, 2026, 11:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Loneliness and Health Outcomes in the High Need Population

NCT05484258
View directory record Official record
Conditions
Anxiety, Loneliness, Depression, Alcohol Use Disorder, Utilization, Health Care
Interventions
Shared Medical Visit
Behavioral
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 5, 2023 · Synced Jul 21, 2026, 11:14 AM EDT
Recruiting Not applicable Interventional

Telehealth vs In-Person Evaluation of Addiction Treatment After Visiting the Emergency Department

NCT06961058
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
referral to telehealth treatment, referral to in person treatment
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
528 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
3
States / cities
El Centro, California • Sacramento, California • Sylmar, California
Source: ClinicalTrials.gov public record
Updated Jun 28, 2026 · Synced Jul 21, 2026, 11:14 AM EDT
Completed Phase 1 Interventional

Single Ascending Dose Study of ALA-1000

NCT04122755
View directory record Official record
Conditions
Opioid-use Disorder
Interventions
ALA-1000, buprenorphine sublingual film
Drug
Lead sponsor
Alar Pharmaceuticals Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 29, 2021 · Synced Jul 21, 2026, 11:14 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Smoking, Sex Hormones, and Pregnancy

NCT01811225
View directory record Official record
Conditions
Nicotine Dependence, Contraception
Interventions
Low-dose Progesterone, High-dose Progesterone
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 12, 2020 · Synced Jul 21, 2026, 11:14 AM EDT
Recruiting Not applicable Interventional

Medical Cannabis and Behavior

NCT06808048
View directory record Official record
Conditions
Chronic Pain Patients, Medical Cannabis Users
Interventions
Cognitive testing, Task-based fMRI measure of face-name and verbal learning
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
30 Years to 75 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Jul 21, 2026, 11:14 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Ketamine for OUD and Comorbid Depression (OUDCD)

NCT05051449
View directory record Official record
Conditions
Opioid Use Disorder, Depressive Disorder
Interventions
Ketamine Hydrochloride
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 6, 2024 · Synced Jul 21, 2026, 11:14 AM EDT
Completed Not applicable Interventional

Mindfulness-Oriented Recovery Enhancement For Chronic Pain and Prescription Opioid Misuse in Primary Care

NCT02602535
View directory record Official record
Conditions
Chronic Pain, Opioid Use Disorders
Interventions
Mindfulness-Oriented Recovery Enhancement, Support Group
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 100 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 21, 2025 · Synced Jul 21, 2026, 11:14 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Testing Methylphenidate for Smoking Abstinence

NCT00549640
View directory record Official record
Conditions
Smoking
Interventions
Methylphenidate, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 18, 2011 · Synced Jul 21, 2026, 11:14 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Nicotine on Areas of Impaired and Preserved Functioning in Schizophrenia

NCT01034085
View directory record Official record
Conditions
Nicotine Dependence, Schizophrenia
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 55 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Jul 21, 2026, 11:14 AM EDT