Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 20, 2026, 8:02 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 73–96 of 125 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Harm Reduction Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Interactive Program for Effective Playground Supervision

NCT01094236
View directory record Official record
Conditions
Behavior
Interventions
On the Playground behavior management program
Behavioral
Lead sponsor
Oregon Center for Applied Science, Inc.
Industry
Eligibility
18 Years and older
Enrollment
2,316 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 26, 2010 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Switching to a Vaping Device: Evaluating Risk Reduction Among Quitline Treatment Failures

NCT03502200
View directory record Official record
Conditions
Smoking, Cigarette
Interventions
JUUL, Treatment As Usual
Device · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years to 99 Years
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 21, 2023 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Not applicable Interventional Results available

Quit or Switch: E-cigarette Study

NCT05525078
View directory record Official record
Conditions
Tobacco Use
Interventions
e-cigarette, Nicotine patch, Nicotine lozenge
Behavioral · Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
21 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 26, 2024 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Electronic Cigarettes (E-cigarettes) as a Harm Reduction Strategy

NCT02628964
View directory record Official record
Conditions
Tobacco Use Disorder, Smoking
Interventions
e-cigarettes
Device
Lead sponsor
NYU Langone Health
Other
Eligibility
21 Years to 35 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 24, 2020 · Synced Oct 20, 2026, 8:02 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Young Adult Naturalistic Alcohol Study (YANAS) Using Smartphone Technology in a Simulated Laboratory Environment

NCT02841735
View directory record Official record
Conditions
Alcohol Use, Alcohol Drinking, Drinking Behavior
Interventions
Smartphone breathalyzer device/app use, BAC estimator app use, Text messaging procedure
Device
Lead sponsor
University of Florida
Other
Eligibility
21 Years to 25 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Dec 3, 2018 · Synced Oct 20, 2026, 8:02 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Prevention and Rapid Outreach for Treatment, Engagement, and Care Transition From the Emergency Department

NCT07868393
View directory record Official record
Conditions
Opioid Overdose Prevention, HIV Prevention and Care, Harm Reduction
Interventions
PROTECT-ED Care Coordination
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 9, 2026 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Phase 1Phase 2 Interventional

Stonewall Treatment Evaluation Project

NCT01129401
View directory record Official record
Conditions
Substance Abuse, HIV Infections
Interventions
Stonewall Project
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older · Male only
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 27, 2014 · Synced Oct 20, 2026, 8:02 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

The Abuse Liability of IQOS Heated Tobacco Products Among Adults Who Smoke

NCT07688304
View directory record Official record
Conditions
Tobacco
Interventions
Smoking Behavioral Research (IQOS), Smoking Behavioral Research (UBC)
Behavioral
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Rapid Self-Testing to Prevent Fentanyl Overdose Among Young People Who Use Drugs

NCT03373825
View directory record Official record
Conditions
Accidental Overdose of Opiate
Interventions
Take home rapid drug test
Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years to 35 Years
Enrollment
93 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jan 24, 2018 · Synced Oct 20, 2026, 8:02 PM EDT
Recruiting Not applicable Interventional

Teaching Health Resilience in a Hospital Setting: A Peer-led Intervention

NCT06843213
View directory record Official record
Conditions
Opioid Use Disorder, Harm Reduction, Health Promotion
Interventions
Peer Intervention, Enhanced Usual Care
Behavioral · Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
262 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
3
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Providing Suboxone and PrEP Using Telemedicine

NCT04521920
View directory record Official record
Conditions
Opioid Use, Opioid-use Disorder, Risk Reduction, Hiv
Interventions
Suboxone, PrEP
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
3
States / cities
Charlotte, North Carolina • Durham, North Carolina • Wilmington, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 9, 2023 · Synced Oct 20, 2026, 8:02 PM EDT
Not yet recruiting Not applicable Interventional

Prescribe to Prevent HIV: A Hybrid Trial Helping Addiction Clinics Prevent HIV & Infections Through Safer Drug Use Support

NCT07073924
View directory record Official record
Conditions
People Who Use Opioids/People With Opioid Use Disorder (OUD)
Interventions
Implementation strategy bundle
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
536 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
4
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Not applicable Interventional Results available

Adaptation of SFA for HRW

NCT07149155
View directory record Official record
Conditions
Occupational Health
Interventions
Stress First Aid for Harm Reduction Workers
Behavioral
Lead sponsor
Suzannah Creech
Other
Eligibility
18 Years to 100 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Adaptive Use of Nicotine Substitution to Maintain Smoking Reduction/Abstinence in Nicotine Responders

NCT06554873
View directory record Official record
Conditions
Smoking Cessation, Harm Reduction
Interventions
Nicoderm, Nicorette 4Mg Chewing Gum, Nicorette Lozenge Product, NJOY e-cigarette, on!
Drug · Other
Lead sponsor
Rose Research Center, LLC
Industry
Eligibility
22 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
2
States / cities
Charlotte, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 6, 2026 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Electronic Cigarettes as a Harm Reduction Strategy in Individuals With Substance Use Disorder

NCT04063267
View directory record Official record
Conditions
Cigarette Smoking, Addiction, E Cig Use
Interventions
E cigarettes, Nicotine Replacement Therapy
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 20, 2024 · Synced Oct 20, 2026, 8:02 PM EDT
Recruiting Not applicable Interventional

Electronic Cigarettes as a Harm Reduction Strategy Among People With Opioid Use Disorder on Buprenorphine

NCT07202039
View directory record Official record
Conditions
Tobacco-flavored EC, Sweet-Cooling EC, Sweet Non-cooling EC
Interventions
Brief individual counseling sessions
Behavioral
Lead sponsor
Prisma Health-Upstate
Other
Eligibility
21 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Greenville, South Carolina
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Integrative Psychosocial Group Treatment

NCT03648177
View directory record Official record
Conditions
Chronic Pain, Opioid Misuse
Interventions
IPGT, Treatment as Usual
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 64 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 6, 2019 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Not applicable Interventional Results available

E-cigarettes for Harm Reduction in Adults With Asthma

NCT05278065
View directory record Official record
Conditions
Smoking, Asthma, Electronic Cigarette Use, Cigarette Smoking
Interventions
Nicotine
Other
Lead sponsor
Brown University
Other
Eligibility
21 Years to 65 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Nov 18, 2025 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

E-cigarettes as a Harm Reduction Strategy

NCT06277271
View directory record Official record
Conditions
Smoking
Interventions
E-cigarette
Other
Lead sponsor
Prisma Health-Upstate
Other
Eligibility
21 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Greenville, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 31, 2024 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

E-Cigarettes and Financial Incentives to Promote Tobacco Harm Reduction Among Adults Accessing Shelter Services

NCT03743532
View directory record Official record
Conditions
Cigarette Smoking
Interventions
E-cigarette Switching, Financial Incentives
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
21 Years to 100 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Feb 21, 2025 · Synced Oct 20, 2026, 8:02 PM EDT
Active, not recruiting Not applicable Interventional

Counseling for Harm Reduction and Retention in Medication-assisted Treatment - Cherokee Nation

NCT05733442
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
Treatment as usual (TAU), CHaRRM-CN
Other
Lead sponsor
Washington State University
Other
Eligibility
18 Years and older
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
2
States / cities
Tahlequah, Oklahoma • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Effectiveness of Using Tobacco Free Snuff in Reducing Negative Effects of Smokeless Tobacco Use

NCT00218270
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Tobacco free snuff
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 70 Years
Enrollment
138 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2005
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 10, 2017 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Phase 4 Interventional Results available

Implementation of Onsite, Rapid ART Initiation Among People Who Inject Drugs Living With HIV at Syringe Services Program

NCT04650269
View directory record Official record
Conditions
Harm Reduction, HIV Infections, Drug Use
Interventions
Biktarvy 50Mg-200Mg-25Mg Tablet, HIV care
Drug · Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 8, 2025 · Synced Oct 20, 2026, 8:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Brief Web-Based Alcohol Reduction Intervention for Undergraduates

NCT01694082
View directory record Official record
Conditions
Alcohol Use, Heavy Drinking, Negative Consequences of Alcohol Use
Interventions
THRIVE, Brief brochure and assessment control
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 24 Years
Enrollment
207 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 16, 2014 · Synced Oct 20, 2026, 8:02 PM EDT