Search | Clinical Trials Finder

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 Nov 15, 2026, 8:53 AM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Showing 649–672 of 1,374 matching trials from the live ClinicalTrials.gov search.

Filters: Condition: Substance Use Behavior Clear all

Conditions: Opioid-use Disorder
Interventions: Peer-Facilitated Counseling, Fitbit activity tracker; Behavioral
Lead sponsor: Butler Hospital; Other
Eligibility: 18 Years to 65 Years
Enrollment: 81 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2016 – 2022
U.S. locations: 1
States / cities: Fall River, Massachusetts

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

Conditions: Smoking Cessation
Interventions: Telephone Counseling, Self-Help Materials; Behavioral
Lead sponsor: University of California, San Diego; Other
Eligibility: 18 Years to 75 Years
Enrollment: 2,277 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2004 – 2008
U.S. locations: 1
States / cities: San Diego, California

Conditions: Stress Disorder, Post-Traumatic, Substance-Related Disorders
Interventions: Integrated Cognitive Behavioral Therapy, Treatment-as-usual; Behavioral
Lead sponsor: Dartmouth-Hitchcock Medical Center; Other
Eligibility: 18 Years and older
Enrollment: 56 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2015
U.S. locations: 1
States / cities: Providence, Rhode Island

Conditions: Tobacco Use Disorder
Interventions: E-cigarette product; Device
Lead sponsor: University of Kansas Medical Center; Other
Eligibility: 21 Years and older
Enrollment: 52 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2021
U.S. locations: 1
States / cities: Kansas City, Missouri

Conditions: Tobacco Dependence
Interventions: Smoking Cessation, Yoga, Wellness; Behavioral · Other
Lead sponsor: The Miriam Hospital; Other
Eligibility: 18 Years to 65 Years
Enrollment: 255 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2012 – 2017
U.S. locations: 1
States / cities: Providence, Rhode Island

Conditions: Tobacco Use Disorder
Interventions: Cognitive Behavior Therapy; Behavioral
Lead sponsor: National Institute on Drug Abuse (NIDA); NIH
Eligibility: 18 Years to 65 Years
Enrollment: 304 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2004 – 2009
U.S. locations: 1
States / cities: San Jose, California

Conditions: Cannabis Dependence
Interventions: CI-581a; Drug
Lead sponsor: New York State Psychiatric Institute; Other
Eligibility: 21 Years to 60 Years
Enrollment: 8 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2016 – 2018
U.S. locations: 1
States / cities: New York, New York

Conditions: Nicotine Addiction, Smoking Cessation
Interventions: Computer Tablet; Other
Lead sponsor: University of California, San Francisco; Other
Eligibility: 18 Years to 100 Years
Enrollment: 961 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2012 – 2015
U.S. locations: 2
States / cities: San Francisco, California

Conditions: Opioid Use Disorder
Interventions: Group well child care; Other
Lead sponsor: Thomas Jefferson University; Other
Eligibility: 18 Years and older · Female only
Enrollment: 49 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2021 – 2026
U.S. locations: 1
States / cities: Philadelphia, Pennsylvania

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

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: 300 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2025 – 2027
U.S. locations: 3
States / cities: Pittsburgh, Pennsylvania

Conditions: Opioid-use Disorder
Interventions: Prescriber Recruitment Bundle (PRB); Behavioral
Lead sponsor: University of Wisconsin, Madison; Other
Eligibility: Not listed
Enrollment: 76 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2016 – 2019
U.S. locations: 3
States / cities: Tallahassee, Florida • Columbus, Ohio • Madison, Wisconsin

Conditions: Nicotine Dependence
Interventions: Nicotine; Other
Lead sponsor: Mclean Hospital; Other
Eligibility: 18 Years to 40 Years · Female only
Enrollment: 300 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2008 – 2016
U.S. locations: 1
States / cities: Belmont, Massachusetts

Conditions: Substance Use Disorders, Pregnancy Related, Alcohol Use Disorder (AUD), Alcohol Use Complicating Pregnancy, First Trimester, Alcohol Use Complicating Pregnancy, Second Trimester, Alcohol Use Complicating Pregnancy, Third Trimester, Alcohol Use Complicating Pregnancy, Unspecified Trimester, Alcohol Use Complicating Pregnancy, Childbirth, and the Puerperium, Fetal Alcohol Spectrum Disorders, Fetal Alcohol Syndrome, Drug Use Disorders, Drug Use Complicating Pregnancy, First Trimester, Drug Use Complicating Pregnancy, Second Trimester, Drug Use Complicating Pregnancy, Third Trimester, Drug Use Complicating Pregnancy, Unspecified Trimester, Drug Use Complicating Pregnancy, Childbirth, and the Puerperium, Maternal Drugs Affecting Fetus
Interventions: Parent-Child Assistance Program; Other
Lead sponsor: University of Oklahoma; Other
Eligibility: 18 Years and older · Female only
Enrollment: 200 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2022 – 2026
U.S. locations: 2
States / cities: Oklahoma City, Oklahoma • Tulsa, Oklahoma

Conditions: Tobacco Dependence
Interventions: ProChange ExpertSystem; Behavioral
Lead sponsor: Stanford University; Other
Eligibility: 18 Years and older
Enrollment: 360 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2015 – 2018
U.S. locations: 3
States / cities: Menlo Park, California • San Francisco, California • San Rafael, California

Conditions: Tobacco Use Disorder, Tobacco Use Cessation, Cannabis Use, Cannabis Use Disorder, Marijuana Use
Interventions: Varenicline, Counseling, Psychosocial modules; Drug · Behavioral
Lead sponsor: Medical University of South Carolina; Other
Eligibility: 18 Years and older
Enrollment: 200 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2025 – 2029
U.S. locations: 1
States / cities: Charleston, South Carolina

Conditions: Tobacco Use, Tobacco Use Disorder
Interventions: Tailored QuitGuide app, Standard QuitGuide app; Behavioral
Lead sponsor: Masonic Cancer Center, University of Minnesota; Other
Eligibility: 18 Years and older
Enrollment: 115 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2022 – 2023
U.S. locations: 1
States / cities: Minneapolis, Minnesota

Conditions: Attention Deficit Hyperactivity Disorder, Substance Use Disorder
Interventions: Atomoxetine, Placebo; Drug
Lead sponsor: Massachusetts General Hospital; Other
Eligibility: 15 Years to 30 Years
Healthy volunteers: Healthy volunteers not accepted
U.S. locations: 1
States / cities: Cambridge, Massachusetts

Conditions: Marijuana Smoking
Interventions: Dronabinol 120mg/day, Placebo, Dronabinol 240mg/day; Drug
Lead sponsor: Johns Hopkins University; Other
Eligibility: 18 Years to 100 Years
Enrollment: 25 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2011 – 2012
U.S. locations: 1
States / cities: Baltimore, Maryland

Conditions: Nicotine Addiction, Smoking Cessation
Interventions: Quit Center cessation program; Behavioral
Lead sponsor: Quit Center LLC; Industry
Eligibility: 18 Years and older
Enrollment: 371 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2026
U.S. locations: 1
States / cities: Naples, Florida

Conditions: Tobacco Use
Interventions: Approach Avoidance Training, SHAM Training; Other
Lead sponsor: Jasper A. Smits; Other
Eligibility: 18 Years to 65 Years
Enrollment: 52 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2015 – 2016
U.S. locations: 1
States / cities: Austin, Texas

Conditions: Nicotine Dependence
Interventions: Not listed
Lead sponsor: Duke University; Other
Eligibility: 18 Years and older
Enrollment: 209 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2016 – 2018
U.S. locations: 1
States / cities: Durham, North Carolina

Conditions: Chronic Pain Patients, Medical Cannabis Users
Interventions: Cognitive testing, Task-based fMRI measure of face-name and verbal learning; Behavioral
Lead sponsor: University of Minnesota; Other
Eligibility: 30 Years to 75 Years
Enrollment: 180 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2025 – 2029
U.S. locations: 1
States / cities: Minneapolis, Minnesota

Search by objective public record fields.

Transforming Recovery Through Exercise and Community

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

Smokers' Quitline for Asian Language Speakers

Integrated Cognitive Behavioral Therapy (ICBT) for Posttraumatic Stress Disorder (PTSD) and Substance Use Disorders

Comparative Acceptability of Tobacco and Menthol Flavored E-cigarettes

Yoga as a Complementary Therapy for Smoking Cessation

Behavioral Smoking Cessation Treatment - 1

Facilitating the Behavioral Treatment of Cannabis Use Disorder

Computer-Facilitated 5A's for Smoking Cessation in Primary Care

Child Healthcare at MATER - Pediatric Study

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

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

Intervention to Expand Opioid Use Disorder Treatment Pharmacotherapy Prescribers

Smoked Nicotine Induced Changes in Hormone Function, Mood States and Behaviors

The Oklahoma Parent-Child Assistance Program

Tobacco Treatment for Employable Californians, Total IMPACT Study

Cannabis-Tobacco Co-Use Treatment Study

QuitGuide for American Indians: Aims 2 & 3

Efficacy of Atomoxetine for ADHD in Adolescents and Young Adults With SUD

Effects of Dronabinol (Oral THC) on Cannabis Use

Evaluation of a Smoking Cessation Program for Long-Term Abstinence

The Effect of AAT Training in Smokers

Study on Smoking Cessation and Cost Outcomes in the Duke Smoking Cessation Program

Medical Cannabis and Behavior