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ClinicalTrials.gov public records Last synced Oct 20, 2026, 11:57 AM EDT

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Showing 1–24 of 125 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Harm Reduction Clear all
Completed Not applicable Interventional Results available

Preventing Overdose Using Information and Data From the Environment

NCT05096429
View directory record Official record
Conditions
Opioid Overdose, Drug Overdose
Interventions
PROVIDENT
Behavioral
Lead sponsor
Brown University
Other
Eligibility
Not listed
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Apr 9, 2026 · Synced Oct 20, 2026, 11:57 AM EDT
Terminated Not applicable Interventional

Reducing Hospital Falls by Empowering Nurses to Provide Ambulatory Aids

NCT03675503
View directory record Official record
Conditions
Accidental Falls, Harm Reduction
Interventions
Fall Prevention Decision Support
Other
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years to 99 Years
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 10, 2023 · Synced Oct 20, 2026, 11:57 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Study to Determine the Effects of ENDS Flavor Availability on Abstinence Within Smokers

NCT07598136
View directory record Official record
Conditions
Smoking, Tobacco
Interventions
P2613422, P2611222, P2615522, P2615122, P2615422
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 65 Years
Enrollment
1,280 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
7
States / cities
Maitland, Florida • Atlanta, Georgia • St Louis, Missouri + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Oct 20, 2026, 11:57 AM EDT
Not listed No phase listed Observational

Comparative Tobacco Interventions for Individuals With Severe and Persisting Behavioral Health Disorders

NCT04523948
View directory record Official record
Conditions
Tobacco Use
Interventions
Behavioral and pharmacological support to reduce combustible tobacco use.
Behavioral
Lead sponsor
Rose Research Center, LLC
Industry
Eligibility
21 Years and older
Enrollment
100 participants
Timeline
2020 – 2023
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 28, 2021 · Synced Oct 20, 2026, 11:57 AM EDT
Active, not recruiting Phase 4 Interventional

Vending Machine Naloxone Distribution for Your Community (VENDY)

NCT06429436
View directory record Official record
Conditions
Harm Reduction, Naloxone, Opioid Overdose
Interventions
VENDY
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
Not listed
Enrollment
4,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
3
States / cities
Denver, Colorado • Frisco, Colorado • Pueblo, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Oct 20, 2026, 11:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Naloxone Auto-injector as a Universal Precaution for Patients With Opioid Use Disorder

NCT02669901
View directory record Official record
Conditions
Opiate Antagonist Overdose, Opioid-Related Disorders
Interventions
Naloxone Auto-Injector
Behavioral
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older
Enrollment
395 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Aug 12, 2024 · Synced Oct 20, 2026, 11:57 AM EDT
Not yet recruiting Not applicable Interventional

Combining Social Network Strategies and Routine Substance Use Screening

NCT07414459
View directory record Official record
Conditions
HIV, Substance Use Disorder (SUD)
Interventions
Substance use disorder screening, Social network intervention
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older · Male only
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Oct 20, 2026, 11:57 AM EDT
Completed No phase listed Observational

Evaluation of an HIV Outreach Program

NCT00300183
View directory record Official record
Conditions
HIV Infections
Interventions
Not listed
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jan 8, 2019 · Synced Oct 20, 2026, 11:57 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

A RCT to Determine the Effect of ENDS Flavor Availability on Abstinence Within Smokers

NCT07172438
View directory record Official record
Conditions
Smoking, Tobacco
Interventions
P2611222, P2615022, P2615122, P2613422
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 65 Years
Enrollment
668 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
27
States / cities
Chandler, Arizona • Fort Smith, Arkansas • Altamonte Springs, Florida + 21 more
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 20, 2026, 11:57 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

TeleHealth Resources for IndiVidualizEd Goals (THRIVE) in Alcohol Recovery Study

NCT06074341
View directory record Official record
Conditions
Alcohol Use Disorder, Alcohol Drinking, Alcohol-Related Disorders
Interventions
Mindfulness-based relapse prevention, Online Mutual Support Groups
Behavioral
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older
Enrollment
470 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Dec 24, 2025 · Synced Oct 20, 2026, 11:57 AM 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, 11:57 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers

Evaluate Harm Reduction Products as a Second Line Intervention for Adult Smokers Who Do Not Quit With NRT

NCT06088862
View directory record Official record
Conditions
Smoking Cessation, Harm Reduction
Interventions
Nicoderm, Nicorette 4Mg Chewing Gum, Nicorette Lozenge Product, BIDI e-cigarette, on!
Drug · Other
Lead sponsor
Rose Research Center, LLC
Industry
Eligibility
22 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
2
States / cities
Charlotte, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 30, 2025 · Synced Oct 20, 2026, 11:57 AM EDT
Recruiting Not applicable Interventional

Harm Reduction Services

NCT05776316
View directory record Official record
Conditions
Drug Use, Substance Abuse, Mental Illness
Interventions
Integrated Harm Reduction Intervention (IHRI)
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
3
States / cities
New Haven, Connecticut • New York, New York • Orangeburg, New York
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Oct 20, 2026, 11:57 AM 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, 11:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Group-based Intervention for Club Patrons

NCT03652688
View directory record Official record
Conditions
Drink Too Much, Drinking, Binge, Drunk, Drug Use, Aggression, Aggression Sexual, Peer Group, Safety Issues, Harm Reduction
Interventions
Nightlife Safety Plans (NSP), Fire Safety
Behavioral
Lead sponsor
Pacific Institute for Research and Evaluation
Other
Eligibility
21 Years and older
Enrollment
959 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
2
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Jan 14, 2025 · Synced Oct 20, 2026, 11:57 AM 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, 11:57 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Harm Reduction in HIV Primary Care for PLWH Who Use Drugs

NCT05404750
View directory record Official record
Conditions
Human Immunodeficiency Virus, Substance Use, Stigma, Social
Interventions
Harm Reduction
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
641 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
3
States / cities
Birmingham, Alabama • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 10, 2026 · Synced Oct 20, 2026, 11:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Community-Based, Client-Centered Prevention Homes to Address the Rural Opioid Epidemic- Aim 3

NCT04268173
View directory record Official record
Conditions
Drug Use Disorders, Hepatitis C, Harm Reduction, Opioid-use Disorder
Interventions
Community-Based, Client-Centered Prevention Home
Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
343 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
6
States / cities
Appleton, Wisconsin • Eau Claire, Wisconsin • Green Bay, Wisconsin + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 1, 2024 · Synced Oct 20, 2026, 11:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Trial for Harm Reduction With Incentives & Vaping E-cigarettes

NCT06111053
View directory record Official record
Conditions
Obesity, Smoking Cessation
Interventions
ENDS, CI, No ENDS, NI
Other
Lead sponsor
Brown University
Other
Eligibility
21 Years to 99 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Nov 18, 2024 · Synced Oct 20, 2026, 11:57 AM EDT
Not yet recruiting No phase listed Observational Accepts healthy volunteers

Clinical Decision Support for Safety of Opioid Transitions

NCT06527040
View directory record Official record
Conditions
Medication Abuse, Harm Reduction
Interventions
Opioid Transitions Clinical Decision Support (CDS)
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Years to 89 Years
Enrollment
200,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 20, 2026, 11:57 AM EDT
Completed Not applicable Interventional

Patient Navigation-based Tobacco Harm Reduction Program Among Cancer Patients

NCT04972916
View directory record Official record
Conditions
Tobacco Use
Interventions
Patient navigation-based tobacco harm reduction intervention
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 11, 2022 · Synced Oct 20, 2026, 11:57 AM 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, 11:57 AM EDT
Recruiting Not applicable Interventional

Trial of a Culturally Informed Brief Intervention to Reduce Alcohol Related Health Disparities and Treatment Inequities Among Latinxs

NCT05800899
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
Brief Motivational Interviewing, Culturally adaptation brief motivational interviewing
Behavioral
Lead sponsor
University of Texas, El Paso
Other
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
El Paso, Texas
Source: ClinicalTrials.gov public record
Updated Aug 24, 2025 · Synced Oct 20, 2026, 11:57 AM EDT
Active, not recruiting Not applicable Interventional

Integrated Care and Treatment for Severe Infectious Diseases and Substance Use Disorders Among Hospitalized Patients

NCT05688423
View directory record Official record
Conditions
Injection Site Infection, Substance Use Disorders
Interventions
SIRI Team, Treatment as Usual
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
6
States / cities
Birmingham, Alabama • Miami, Florida • Tampa, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 21, 2025 · Synced Oct 20, 2026, 11:57 AM EDT