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Showing 1–24 of 43 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Harmful Use Clear all
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

Preventing Drug Use in Low Income Clinic Populations

NCT01942876
View directory record Official record
Conditions
Drug Use, Harmful Use
Interventions
Quit Using Drugs Intervention Trial, Health behavior maintenance
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
411 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 17, 2016 · Synced Sep 3, 2026, 1:09 AM EDT
Completed No phase listed Observational

A Prospective Assessment of Opioid Utilization Post-operatively in Sports Orthopaedic Surgeries

NCT03422211
View directory record Official record
Conditions
Narcotic Use, Postoperative Pain, Narcotic Abuse, Opioid Use, Opioid Abuse, Uncomplicated, Opioids; Harmful Use, Analgesic Drug Dependence, Orthopedic Disorder
Interventions
Questionnaire
Other
Lead sponsor
St. Louis University
Other
Eligibility
10 Years to 100 Years
Enrollment
223 participants
Timeline
2017 – 2018
U.S. locations
3
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 23, 2021 · Synced Sep 3, 2026, 1:09 AM EDT
Completed Not applicable Interventional Results available

HealthCall:Brief Intervention to Reduce Non-injecting Drug Use in HIV Primary Care Clinics

NCT01312181
View directory record Official record
Conditions
Mental and Behavioral Disorders Due to Harmful Drug Use
Interventions
HealthCall and Motivational Interviewing, Motivational Interviewing (MI), HIV/AIDS health education
Behavioral
Lead sponsor
Research Foundation for Mental Hygiene, Inc.
Other
Eligibility
18 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 16, 2021 · Synced Sep 3, 2026, 1:09 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Efficacy of the Expectancy Challenge Alcohol Literacy Curriculum on Reducing College Student Alcohol Use and Harms

NCT05616247
View directory record Official record
Conditions
Alcohol Use, Underage, Harmful; Use, Alcohol
Interventions
ECALC, ECALC Plus Weekly Boosters
Behavioral
Lead sponsor
University of Central Florida
Other
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Feb 27, 2025 · Synced Sep 3, 2026, 1:09 AM EDT
Recruiting Not applicable Interventional

Little Cigar Oxidants

NCT06310187
View directory record Official record
Conditions
Tobacco Use, Oxidative Stress
Interventions
High Oxidant Little Cigar, Low Oxidant Little Cigar, Usual Cigarette
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Sep 3, 2026, 1:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Game Plan for PrEP

NCT04973267
View directory record Official record
Conditions
Human Immunodeficiency Virus Exposure, Alcohol; Harmful Use
Interventions
Game Plan for PrEP, Attention-Matched Control Lifestyle Habits Videos
Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years and older · Male only
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Aug 27, 2024 · Synced Sep 3, 2026, 1:09 AM EDT
Completed Phase 1Phase 2 Interventional

Dental and Medical Office iMET to Reduce Teen Tobacco, Alcohol, and Drug Use

NCT00907309
View directory record Official record
Conditions
Use; Tobacco, Harmful, Alcohol Abuse, Drug Abuse
Interventions
iMET, iMET/TE
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
12 Years to 21 Years
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 6, 2016 · Synced Sep 3, 2026, 1:09 AM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

Behavioral Alcohol Responses (BAR) Study

NCT03467191
View directory record Official record
Conditions
Alcohol Drinking, Alcohol Use Disorder, Alcohol Intoxication, Alcohol; Harmful Use, Alcoholism, Binge Drinking
Interventions
Alcohol, Placebo
Drug · Other
Lead sponsor
Carnegie Mellon University
Other
Eligibility
21 Years to 29 Years
Enrollment
782 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2025
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 11, 2025 · Synced Sep 3, 2026, 1:09 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Alcohol and the Social Brain: An Alcohol-Administration Hyperscanning Study

NCT06687525
View directory record Official record
Conditions
Alcohol Drinking, Alcohol Use Disorder, Alcohol Intoxication, Alcohol; Harmful Use, Alcoholism, Binge Drinking
Interventions
Not listed
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
21 Years to 30 Years
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Champaign, Illinois
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Sep 3, 2026, 1:09 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Alcohol and the Social Brain: An Alcohol-Administration Hyperscanning Study Employing a Within-Subject Design

NCT07125534
View directory record Official record
Conditions
Alcohol Drinking, Alcohol Use Disorder (AUD), Alcohol Intoxication, Alcohol; Harmful Use, Alcoholism, Binge Drinking
Interventions
Alcohol beverage, Control - non alcoholic beverage
Drug · Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
21 Years to 30 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
2
States / cities
Champaign, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 28, 2025 · Synced Sep 3, 2026, 1:09 AM EDT
Completed Not applicable Interventional Results available

Acceptability of Less Harmful Alternatives to Cigarettes

NCT00957424
View directory record Official record
Conditions
Bladder Cancer, Cervical Cancer, Esophageal Cancer, Gastric Cancer, Head and Neck Cancer, Kidney Cancer, Leukemia, Liver Cancer, Lung Cancer, Pancreatic Cancer, Tobacco Use Disorder
Interventions
telephone-based intervention, nicotine replacement therapy, informational intervention, internet-based intervention, questionnaire administration
Behavioral · Drug · Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years to 120 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Feb 6, 2017 · Synced Sep 3, 2026, 1:09 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Management of Postoperative Pain After Cesarean Delivery Using Bridge Auricular Percutaneous Nerve Field Stimulator

NCT06434714
View directory record Official record
Conditions
Post-operative Pain, Acute, Cesarean Section, Opioid Use Disorder, Opioids; Harmful Use
Interventions
Auricular percutaneous nerve field stimulator, Sham auricular percutaneous nerve field stimulator
Device
Lead sponsor
Inova Health Care Services
Other
Eligibility
18 Years to 55 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Falls Church, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 2, 2025 · Synced Sep 3, 2026, 1:09 AM EDT
Completed No phase listed Observational

Room Air Levels of Harmful and Potentially Harmful Constituents After Heated Tobacco Product Use and Cigarettes

NCT06476405
View directory record Official record
Conditions
Tobacco Smoking, Tobacco Use
Interventions
Not listed
Lead sponsor
Altria Client Services LLC
Industry
Eligibility
22 Years to 65 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Stockbridge, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Sep 3, 2026, 1:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Insomnia Treatment and Problems (the iTAP Study)

NCT03627832
View directory record Official record
Conditions
Insomnia, Alcohol; Harmful Use
Interventions
Cognitive Behavioral Therapy for Insomnia (CBT-I), Sleep Hygiene
Behavioral
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 30 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 15, 2020 · Synced Sep 3, 2026, 1:09 AM EDT
Completed Phase 4 Interventional Results available

Topiramate Treatment of Hazardous and Harmful Alcohol Use in Veterans With TBI

NCT01750268
View directory record Official record
Conditions
Traumatic Brain Injury (TBI), Hazardous and Harmful Alcohol Use
Interventions
Medical Management Counseling, Topiramate, Placebo
Behavioral · Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 13, 2020 · Synced Sep 3, 2026, 1:09 AM EDT
Completed Phase 2 Interventional Results available

N-acetylcysteine Treatment of Alcohol Use Disorder In Veterans With TBI

NCT02791945
View directory record Official record
Conditions
Traumatic Brain Injury (TBI), Hazardous and Harmful Alcohol Use
Interventions
Medical Management Counseling, N-acetylcysteine, Placebo
Behavioral · Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 10, 2021 · Synced Sep 3, 2026, 1:09 AM EDT
Completed Phase 1 Interventional

Patient Driven Recovery With Nalmefene and Coaching

NCT03279562
View directory record Official record
Conditions
Opioid-use Disorder, Harmful; Use, Alcohol
Interventions
Nalmefene
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 21, 2021 · Synced Sep 3, 2026, 1:09 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Sleep as a Mechanism of Change in Alcohol Use

NCT06286774
View directory record Official record
Conditions
Insomnia, Alcohol; Harmful Use
Interventions
Cognitive Behavioral Therapy for Insomnia
Behavioral
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 49 Years
Enrollment
256 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 21, 2025 · Synced Sep 3, 2026, 1:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Understanding Alcohol Reward in Social Context

NCT03449095
View directory record Official record
Conditions
Alcohol Drinking, Alcohol Use Disorder, Alcohol Intoxication, Alcohol; Harmful Use, Alcoholism, Binge Drinking
Interventions
Alcohol
Drug
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
21 Years to 30 Years
Enrollment
640 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Champaign, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 30, 2024 · Synced Sep 3, 2026, 1:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Gamified, Social Media Inspired Personalized Normative Feedback Alcohol Intervention for Sexual Minority Women

NCT03884478
View directory record Official record
Conditions
Alcohol Drinking, Alcohol Abuse, Alcohol; Harmful Use
Interventions
Personalized Normative Feedback
Behavioral
Lead sponsor
Loyola Marymount University
Other
Eligibility
21 Years to 55 Years · Female only
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 6, 2023 · Synced Sep 3, 2026, 1:09 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Piloting a Naloxone Intervention in Philadelphia

NCT03305497
View directory record Official record
Conditions
Opioids; Harmful Use
Interventions
Mobile Phone Application
Behavioral
Lead sponsor
Drexel University
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 21, 2021 · Synced Sep 3, 2026, 1:09 AM EDT
Active, not recruiting Not applicable Interventional

Pain and Opioids: Integrated Treatment In Veterans

NCT04648228
View directory record Official record
Conditions
Chronic Pain, Opioid-use Disorder, Opioids; Harmful Use
Interventions
ACT+MBRP, Education control
Behavioral
Lead sponsor
University of New Mexico
Other
Eligibility
21 Years to 75 Years
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
4
States / cities
San Francisco, California • Albuquerque, New Mexico • Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Dec 21, 2025 · Synced Sep 3, 2026, 1:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Alcohol and Immune Response

NCT03483389
View directory record Official record
Conditions
Alcohol Drinking, Alcohol; Harmful Use
Interventions
Alcohol, Ethyl, Alcohol, Ethyl - placebo
Drug · Other
Lead sponsor
Brown University
Other
Eligibility
21 Years to 55 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jul 26, 2021 · Synced Sep 3, 2026, 1:09 AM EDT
Active, not recruiting Not applicable Interventional

Using CBPR to Engage Hazardous Drinking Women in the HIV Prevention and Care Continuum

NCT04090723
View directory record Official record
Conditions
HIV, Alcohol; Harmful Use, Mental Health Disorder
Interventions
CBI-CC with peer navigation
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 30, 2025 · Synced Sep 3, 2026, 1:09 AM EDT