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ClinicalTrials.gov public records Last synced Oct 20, 2026, 8:44 PM EDT

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Showing 1–24 of 42 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Harm-Reduction Counseling Clear all
Enrolling by invitation Not applicable Interventional

Lock and Protect: Reducing Adolescent Access to Lethal Means of Suicide

NCT07111052
View directory record Official record
Conditions
Suicide, Suicide Attempt, Adolescent Suicidality, Suicide Ideation
Interventions
Lock and Protect is a self-administered, web-based decision aid for caregivers of adolescents at risk for suicide.
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
13 Years to 17 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 5, 2025 · Synced Oct 20, 2026, 8:44 PM EDT
Completed Not applicable Interventional

Tele-Harm Reduction

NCT05208697
View directory record Official record
Conditions
IV Drug Usage, HIV Infections, Hepatitis C
Interventions
Tele-Harm Reduction, off-site linkage
Behavioral · Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
3
States / cities
Fort Lauderdale, Florida • Miami, Florida • Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Oct 20, 2026, 8:44 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Project POINT: Effectiveness and Scalability of an Overdose Survivor Intervention

NCT03336268
View directory record Official record
Conditions
Substance Use Disorders, Overdose
Interventions
POINT
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
249 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
2
States / cities
Indianapolis, Indiana • Muncie, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 6, 2023 · Synced Oct 20, 2026, 8:44 PM EDT
Completed Not applicable Interventional

Electronic Cigarettes as a Harm Reduction Strategy Among Patients With COPD

NCT04465318
View directory record Official record
Conditions
COPD
Interventions
E-cigarette (EC), Nicotine Replacement Therapy (NRT), Smoking Harm Reduction Counseling Sessions
Other · Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
21 Years to 75 Years
Enrollment
146 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 15, 2023 · Synced Oct 20, 2026, 8:44 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

American Indian and Alaska Native Men Who Have Sex With Men HIV & Substance Abuse Research

NCT03049904
View directory record Official record
Conditions
HIV, Substance Use
Interventions
Vr2L 2Spirit
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older · Male only
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 30, 2018 · Synced Oct 20, 2026, 8:44 PM EDT
Completed Not applicable Interventional

Pharmacist-Led Interventions to Increase Access to Medications for Opioid Use Disorders (PLI-MOUD)

NCT05776823
View directory record Official record
Conditions
Opioid Use Disorder, Overdose
Interventions
Pharmacist Narcan Training, BIRT, SMC, Substance Use Counselor Narcan Training
Behavioral
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years and older
Enrollment
267 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Oct 20, 2026, 8:44 PM EDT
Recruiting Not applicable Interventional

Advancing Scalable Alcohol Brief Interventions in the ED: A Trial of Conversational AI With Digital Reinforcements

NCT07661563
View directory record Official record
Conditions
Alcohol Misuse
Interventions
MICA, TRAC
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Enrollment
750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Oct 15, 2026 · Synced Oct 20, 2026, 8:44 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Motivational Interviewing to Increase Uptake of Drug Checking and Safe Drug Use Behaviors to Reduce Overdose

NCT06855836
View directory record Official record
Conditions
Overdose
Interventions
MI-CHANCE (TS + FTIR + MI), TS + FTIR + Flu and Hepatitis A Education
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
588 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Oct 20, 2026, 8:44 PM EDT
Completed Phase 1 Interventional

Improving Quality-of-life and Depressive Symptoms of Combat Veterans Via Internet-based Intervention

NCT01231711
View directory record Official record
Conditions
Depression, Post-Traumatic Stress Disorder, Functional Status
Interventions
Vets Prevail
Behavioral
Lead sponsor
Prevail Health Solutions, LLC
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 1, 2010 · Synced Oct 20, 2026, 8:44 PM EDT
Completed Phase 2 Interventional

Reduction of Smoking in Cardiac Disease Patients

NCT00469885
View directory record Official record
Conditions
Cardiovascular Disease, Tobacco Use Disorder
Interventions
Nicotine replacement, Motivational counseling
Drug · Behavioral
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years and older
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2005
U.S. locations
2
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 10, 2017 · Synced Oct 20, 2026, 8:44 PM EDT
Recruiting Not applicable Interventional

The MOUD Plus Pilot: Counseling and Peer Support to Support Retention for Medically Complex Patients With Opioid Use Disorder Seen In Primary Care

NCT06837662
View directory record Official record
Conditions
Opioid Dependence, Substance Abuse Disorders, Complex Medical Patients, Primary Care Patients With Chronic Conditions
Interventions
MOUD "Plus" Intervention (treatment as usual + coordinated counseling and referral to community based peer), Treatment As Usual (primary care with low threshold MOUD prescribing)
Behavioral
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 25, 2026 · Synced Oct 20, 2026, 8:44 PM EDT
Completed Phase 2 Interventional Results available

Harm Reduction With Pharmacotherapy (HaRP)

NCT01932801
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
XR-NTX, Placebo, HRC
Drug · Other · Behavioral
Lead sponsor
University of Washington
Other
Eligibility
21 Years to 65 Years
Enrollment
308 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 10, 2023 · Synced Oct 20, 2026, 8:44 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Trauma-informed Personalized Scripts (TIPS) for Relationship Abuse

NCT02782728
View directory record Official record
Conditions
Violence, Abuse
Interventions
TIPS-Plus, TIPS-Basic
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
16 Years to 29 Years · Female only
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 17, 2019 · Synced Oct 20, 2026, 8:44 PM EDT
Recruiting Not applicable Interventional

E-cigarettes for Harm Reduction Among Smokers With Serious Mental Illness

NCT05815199
View directory record Official record
Conditions
Cigarette Smoking
Interventions
E-cigarette (EC), Nicotine Replacement Therapy (NRT), Harm-Reduction Counseling, Ecological Momentary Intervention (EMI) Text Messaging
Other · Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
21 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 29, 2026 · Synced Oct 20, 2026, 8:44 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Text-Based Messaging Strategies for Preventing Subsequent Problematic Alcohol Use

NCT06318975
View directory record Official record
Conditions
Alcohol Drinking, Binge Drinking, Text Messaging
Interventions
Brief Alcohol Intervention, Automated and Targeted Text Messages
Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
7,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Oct 20, 2026, 8:44 PM EDT
Completed Not applicable Interventional

Improving Brief Marijuana Interventions With a Behavioral Economic Supplement

NCT02837315
View directory record Official record
Conditions
Marijuana Use
Interventions
Brief Motivational Intervention (BMI), Substance-Free Activity Session (SFAS), Relaxation Session
Behavioral
Lead sponsor
University of Memphis
Other
Eligibility
18 Years and older
Enrollment
133 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated May 2, 2017 · Synced Oct 20, 2026, 8:44 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

A Randomized Controlled Trial of the Bruthas Project

NCT01270230
View directory record Official record
Conditions
HIV Infection
Interventions
Bruthas Project, Standard HIV Testing and Counseling
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
396 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 27, 2016 · Synced Oct 20, 2026, 8:44 PM EDT
Recruiting Phase 2 Interventional

E-Cigarettes for Harm Reduction in Smokers With Opioid Use Disorder

NCT05722561
View directory record Official record
Conditions
Opioid Use Disorder, Cigarette Smoking
Interventions
Telehealth Motivational Counseling, Nicotine Replacement Product, National Institute on Drug Abuse (NIDA) Standardized Research Electronic Cigarette (SREC).
Behavioral · Drug · Device
Lead sponsor
NYU Langone Health
Other
Eligibility
21 Years to 75 Years
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
2
States / cities
New York, New York • The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Oct 20, 2026, 8:44 PM EDT
Not listed Not applicable Interventional

Harm Reduction for Tobacco Smoking With Support of Tobacco-Replacing Electronic Nicotine Delivery Systems

NCT03962660
View directory record Official record
Conditions
Smoking, Tobacco
Interventions
HaRTS-TRENDS, Standard Care (SC)
Other
Lead sponsor
University of Washington
Other
Eligibility
21 Years to 65 Years
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 24, 2019 · Synced Oct 20, 2026, 8:44 PM EDT
Active, not recruiting Not applicable Interventional

Behavioral Economic and Wellness-based Approaches for Reducing Alcohol Use and Consequences Among Emerging Adults

NCT04776278
View directory record Official record
Conditions
Alcohol Abuse
Interventions
Brief Alcohol Intervention (BAI), Substance-free Activity Session (SFAS), Relaxation Training (RT), Education Control
Behavioral · Other
Lead sponsor
University of Memphis
Other
Eligibility
18 Years to 29 Years
Enrollment
525 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Oct 20, 2026, 8:44 PM EDT
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 18, 2016 · Synced Oct 20, 2026, 8:44 PM EDT
Completed Not applicable Interventional

Electronic Cigarettes as a Harm Reduction Strategy Among People Living With HIV/AIDS

NCT04218708
View directory record Official record
Conditions
Nicotine Addiction
Interventions
Nicotine patch and gum, Minnesota Nicotine Withdrawal Scale (MNWS), ASSIST (the Alcohol, Smoking and Substance Involvement Screening), Counseling, NIDA Standardized Research E-cigarettes (SREC)
Other · Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 65 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 20, 2024 · Synced Oct 20, 2026, 8:44 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The IPV Provider Network: Engaging the Health Care Provider Response to Interpersonal Violence Against Women

NCT03259646
View directory record Official record
Conditions
Violence, Domestic, Violence, Sexual
Interventions
Universal Education
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 59 Years · Female only
Enrollment
6,272 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
9
States / cities
Kingman, Arizona • Lake Havasu City, Arizona • Williams, Arizona + 6 more
Source: ClinicalTrials.gov public record
Updated Jan 18, 2020 · Synced Oct 20, 2026, 8:44 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Family Planning-based Partner Abuse Intervention to Reduce Unintended Pregnancy

NCT01459458
View directory record Official record
Conditions
Violence, Pregnancy
Interventions
Family Planning-based Partner Violence Intervention
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
16 Years to 29 Years · Female only
Enrollment
3,687 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 2, 2015 · Synced Oct 20, 2026, 8:44 PM EDT