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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Drug Use Clear all
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Immunologic Effects of HCV Therapy With HARVONI in HCV Genotype 1 Chronically Mono-infected Active and Former IDUs

NCT02347345
View directory record Official record
Conditions
Hepatitis C
Interventions
Harvoni (Fixed dose combination ledipasvir/sofosbuvir)
Drug
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 55 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 12, 2019 · Synced Jul 21, 2026, 7:10 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

GABA (Gamma Amino Butyric Acid) Medication for Tobacco

NCT00644137
View directory record Official record
Conditions
Nicotine Dependence
Interventions
pregabalin, cigarettes
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 1, 2020 · Synced Jul 21, 2026, 7:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of FDA Authorized Smokeless Tobacco Claims Among US Adults Who Smoke Cigarettes

NCT06927700
View directory record Official record
Conditions
Tobacco Product Beliefs and Use
Interventions
Modified Risk Claim Type - None, Product Brand - General Snus, Product Brand - Copenhagen, Modified Risk Claim Type - Multiple Diseases, Modified Risk Claim Type - Lung Cancer
Behavioral
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
21 Years and older
Enrollment
1,257 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Jul 21, 2026, 7:10 AM EDT
Completed Not applicable Interventional

Community Supported Risk Reduction for Syringe Exchange Participants

NCT02654366
View directory record Official record
Conditions
Substance Use Disorders, Risk Reduction
Interventions
Risk Reduction Group
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 70 Years
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 19, 2020 · Synced Jul 21, 2026, 7:10 AM EDT
Recruiting Not applicable Interventional

WORTH Paths Intervention

NCT06889831
View directory record Official record
Conditions
Substance Use Disorder (SUD), Sexual and Reproductive Health, Sexual Risk Behavior
Interventions
WORTH Paths Digital Intervention, WORTH Paths Wellness Group
Behavioral
Lead sponsor
Fairleigh Dickinson University
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Teaneck, New Jersey
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Jul 21, 2026, 7:10 AM EDT
Completed Not applicable Interventional Results available

ED-Home Pilot Study

NCT03864341
View directory record Official record
Conditions
Housing Problems, Drug Use, Alcohol; Use, Problem
Interventions
Referral to homelessness prevention services, Substance use services, Follow-up
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 99 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 18, 2022 · Synced Jul 21, 2026, 7:10 AM EDT
Completed Phase 4 Interventional Results available

Feasibility and Acceptability of Digital Pills to Monitor PrEP Adherence in MSM With Substance Use

NCT03842436
View directory record Official record
Conditions
HIV/AIDS, Substance Use Disorders, Adherence, Medication
Interventions
Digital pill, Truvada
Device · Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older · Male only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Boylston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 21, 2022 · Synced Jul 21, 2026, 7:10 AM EDT
Completed No phase listed Observational

OPTIMISE-CKD Drug Utilization

NCT05932901
View directory record Official record
Conditions
Chronic Kidney Disease
Interventions
Not listed
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
2,682,052 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Minneota, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 16, 2024 · Synced Jul 21, 2026, 7:10 AM EDT
Completed Not applicable Interventional Results available

Stigma and a Shared Decision Aid

NCT05352412
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
Shared Decision Making Aid - Patients, Shared Decision Making Aid - Providers
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 100 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 23, 2025 · Synced Jul 21, 2026, 7:10 AM EDT
Withdrawn Not applicable Interventional

A Mobile Application for Post-op Analgesic Consumption

NCT03197311
View directory record Official record
Conditions
Tooth Extraction Status Nos, Post Operative Pain, Patient Satisfaction, Narcotic Use, Mobile App
Interventions
Mobile app
Other
Lead sponsor
Boston University
Other
Eligibility
18 Years to 40 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 7, 2019 · Synced Jul 21, 2026, 7:10 AM EDT
Recruiting Not applicable Interventional

Social Network Overdose Prevention and Education Intervention

NCT06327061
View directory record Official record
Conditions
Drug Overdose
Interventions
Network overdose prevention, Standard of care health education
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Jul 21, 2026, 7:10 AM EDT
Recruiting Not applicable Interventional

Hydration Intervention to Decrease Side Effects Associated With GLP - 1 RA Therapy

NCT07641361
View directory record Official record
Conditions
Obesity & Overweight, Type 2 Diabetes, Type 2 Diabetes (Adult Onset), Obesity Type 2 Diabetes Mellitus, Dehydration
Interventions
Hydration Plus, Control
Behavioral
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Jul 21, 2026, 7:10 AM EDT
Completed Not applicable Interventional

Effectiveness of an Integrated Treatment to Address Smoking Cessation and Anxiety/ Depression in People Living With HIV

NCT03904186
View directory record Official record
Conditions
Human Immunodeficiency Virus, Smoking Cessation, Smoking, Cigarette, Smoking, Anxiety, Depression, Nicotine Dependence
Interventions
QUIT, Time-Matched Control (TM)
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 79 Years
Enrollment
131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
3
States / cities
Boston, Massachusetts • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced Jul 21, 2026, 7:10 AM EDT
Completed Phase 4 Interventional

N-Acetylcysteine for Smoking Cessation in Tobacco and Cannabis Co-Use

NCT04627922
View directory record Official record
Conditions
Cannabis Use, Tobacco Use Disorder, Drug Use Disorder
Interventions
N-Acetyl cysteine, Placebo comparator, Cognitive behavioral therapy (CBT)
Drug · Other · Behavioral
Lead sponsor
Ellen Herbst
Other
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Jul 21, 2026, 7:10 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Interactions Between Intravenous Cocaine and Acetazolamide or Quinine

NCT01851473
View directory record Official record
Conditions
Cocaine Use, Pharmacokinetics
Interventions
cocaine, quinine, acetazolamide
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 50 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced Jul 21, 2026, 7:10 AM EDT
Not yet recruiting No phase listed Observational

Safety and Outcomes of MUSE Stem Cell Therapy in Individuals With Traumatic Brain Injury

NCT07326059
View directory record Official record
Conditions
Traumatic Brain Injury, Traumatic Brain Injury (TBI) Patients, Traumatic Brain Injury (TBI); Concussion, Initial Encounter, Traumatic Brain Injury (TBI); Concussion, Subsequent Encounter, Traumatic Brain Injury With Brief Loss of Consciousness, Traumatic Brain Injury With Persistent Cognitive Deficits
Interventions
MUSE Stem Cell Therapy
Biological
Lead sponsor
Healing Hope International
Other
Eligibility
6 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2028 – 2036
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 9, 2026 · Synced Jul 21, 2026, 7:10 AM EDT
Recruiting Not applicable Interventional

Longitudinal Neural Fingerprinting of Opioid-use Trajectories

NCT06207162
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
fMRI
Diagnostic Test
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Jul 21, 2026, 7:10 AM EDT
Recruiting Not applicable Interventional

Syringe Service Based Telemedicine and Social Network Driven HIV Prevention Service Implementation

NCT06103370
View directory record Official record
Conditions
HIV Infections, Substance Use Disorders, Addiction, Opioid Use, Drug Use, Intravenous Drug Usage
Interventions
Peer-educator-based network
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
2
States / cities
Baltimore, Maryland • Frederick, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Jul 21, 2026, 7:10 AM EDT
Completed Not applicable Interventional Results available

Evaluation of an Interactive Opioid Risk Education Program (STOMP) for Parents

NCT03287622
View directory record Official record
Conditions
Pain, Postoperative, Medication Adherence, Opioid Use, Knowledge, Attitudes, Practice, Risk Reduction Behavior
Interventions
Educational Intervention, Nudge
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
21 Years to 99 Years
Enrollment
712 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 18, 2020 · Synced Jul 21, 2026, 7:10 AM EDT
Withdrawn Not applicable Interventional

Temporary Use of a Continuous Glucose Monitoring System as an Adjunct to Lifestyle Medicine Education

NCT04306848
View directory record Official record
Conditions
Blood Glucose Profile
Interventions
Temporary Continuous Glucose Monitoring System
Device
Lead sponsor
Ohio University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Marietta, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 24, 2022 · Synced Jul 21, 2026, 7:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Community Wise: An Innovative Multi-level Intervention to Reduce Alcohol and Illegal Drug Use

NCT02951455
View directory record Official record
Conditions
Substance Use Disorders
Interventions
Critical Dialogue, Capacity Building Project, Quality of Life Wheel, PF, LC
Behavioral
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
18 Years and older · Male only
Enrollment
602 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Newark, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 22, 2022 · Synced Jul 21, 2026, 7:10 AM EDT
Completed Phase 4 Interventional

Effect of Iron Therapy as an Adjunct to Epoetin Alfa in the Anemia of Cancer Chemotherapy

NCT00224068
View directory record Official record
Conditions
Anemia
Interventions
Sodium ferric gluconate, ferrous sulfate, standard of care
Drug
Lead sponsor
Watson Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
32
States / cities
Bakersfield, California • Chula Vista, California • Long Beach, California + 29 more
Source: ClinicalTrials.gov public record
Updated Mar 1, 2012 · Synced Jul 21, 2026, 7:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

ClientBot: a Conversational Agent That Supports Skills Practice and Feedback for Motivational Interviewing

NCT05479890
View directory record Official record
Conditions
Motivational Interviewing, Alcohol Use Disorder
Interventions
ClientBot
Other
Lead sponsor
Lyssn.io, Inc.
Industry
Eligibility
18 Years and older
Enrollment
164 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Dec 12, 2024 · Synced Jul 21, 2026, 7:10 AM EDT
Completed Phase 2 Interventional

Culturally Informed Family Based Treatment of Adolescents: A Randomized Trial

NCT01823250
View directory record Official record
Conditions
Substance Use Disorders, Risk Behavior, Psychiatric Disorders, Family Dysfunction
Interventions
Family Therapy based on Structural Family Therapy, Group Therapy, Psychoeducational Sessions, Individual Adolescent Therapy Sessions
Behavioral
Lead sponsor
University of Miami
Other
Eligibility
14 Years to 17 Years
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 15, 2015 · Synced Jul 21, 2026, 7:10 AM EDT