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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Abstinence Clear all
Completed No phase listed Observational Accepts healthy volunteers

Neuroimaging of Smokers With and Without Attention Deficit Hyperactivity Disorder (ADHD)

NCT01123668
View directory record Official record
Conditions
Smoking, ADHD
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
18 Years to 50 Years
Enrollment
101 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 7, 2018 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Helping Eliminate Marijuana Use Through Pediatric Practice

NCT02744118
View directory record Official record
Conditions
Marijuana
Interventions
5A's Model, Healthy Internet Use Model
Other
Lead sponsor
American Academy of Pediatrics
Other
Eligibility
13 Years to 25 Years
Enrollment
620 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Elk Grove Village, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 8, 2020 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Smartphone-based Financial Incentives

NCT03922360
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Smartphone-based Financial Incentives, Best Practices
Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Training Community Members to Deliver HIV Prevention Programs to Urban Youth

NCT00859144
View directory record Official record
Conditions
HIV, HIV Infections
Interventions
Be Proud! Be Responsible!, Becoming A Responsible Teen (BART), Reducing the Risk
Behavioral
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
12 Years to 60 Years
Enrollment
901 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 7, 2012 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Test of Parent-Focused Cannabis-Related Actions and Practices Intervention for Adolescent Marijuana Abuse

NCT04923230
View directory record Official record
Conditions
Cannabis Use Disorder, Mild, Cannabis Use Disorder, Moderate
Interventions
Cannabis Actions and Practices Resource for Parents
Behavioral
Lead sponsor
Oregon Research Institute
Other
Eligibility
13 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Sep 25, 2023 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pharmacokinetics, Subjective Effects, and Abuse Liability of Nicotine Salt-Based Vaping Products With Tobacco or Unflavored E-liquids, SALTVAPE Study

NCT04231539
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Nicotine, Vaporizer Device, Salt-HIgh Nicotine Unflavored (Product B), Free-Low Nicotine Tobacco Flavored (Product C), Salt-High Nicotine Tobacco Flavored (Product D)
Drug · Device
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
21 Years to 55 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Oct 30, 2025 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Exercise on Acute Nicotine Withdrawal

NCT01047930
View directory record Official record
Conditions
Nicotine Dependence, Smoking, Sleep Disorders, Intrinsic
Interventions
Exercise
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 45 Years
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 1, 2014 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Voucher-Based Incentives in a Prevention Setting

NCT00607269
View directory record Official record
Conditions
Substance-related Disorders
Interventions
Voucher-Based Reinforcement Therapy
Behavioral
Lead sponsor
Friends Research Institute, Inc.
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 31, 2013 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Aim 1: App for Reducing Cravings to Smoke

NCT06923033
View directory record Official record
Conditions
Smoking
Interventions
Smartphone App
Behavioral
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Nov 17, 2025 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Not applicable Interventional Results available

SUPER Study (Substance Use and PTSD Treatment Effectiveness Research Study)

NCT00265564
View directory record Official record
Conditions
Substance Use Disorders, Posttraumatic Stress Disorder
Interventions
Modified Seeking Safety integrated into std outpatient SUD care, Standard outpatient SUD care
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older · Male only
Enrollment
117 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Sep 6, 2020 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Phase 2 Interventional Results available

Prazosin for Alcohol Dependence and Posttraumatic Stress Disorder

NCT01518972
View directory record Official record
Conditions
Alcohol Abuse, Posttraumatic Stress Disorder
Interventions
Prazosin, Placebo medication
Drug
Lead sponsor
Seattle Institute for Biomedical and Clinical Research
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 24, 2020 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Phase 4 Interventional Results available

Cannabis and Tobacco Co-use Study

NCT04228965
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Varenicline, Contingency Management, Counseling
Drug · Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 40 Years
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
3
States / cities
Charleston, South Carolina • Florence, South Carolina • Pickens, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 14, 2025 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Phase 4 Interventional Results available

A Comparative Effectiveness RCT of Optimized Cessation Treatments

NCT02301403
View directory record Official record
Conditions
Smoking Cessation
Interventions
Nicotine patch, in-person counseling and quitline counseling, Preparation Nicotine Mini-Lozenges, Combination NRT (nicotine patch + nicotine mini-lozenges), Intensive In-Person Cessation Counseling, Extended Maintenance Counseling Calls, Automated Adherence Calls
Drug · Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
623 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 12, 2020 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Phase 1 Interventional

Long Term Maintenance of Drug Abstinence

NCT00842517
View directory record Official record
Conditions
Cocaine Dependence, Cocaine Abuse
Interventions
Contingency Management
Behavioral
Lead sponsor
Treatment Research Institute
Other
Eligibility
18 Years and older
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 27, 2023 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pilot Trial of Contingency Management for Long-Term Cannabis Abstinence

NCT03786224
View directory record Official record
Conditions
Cannabis Use, Adolescent Behavior
Interventions
Contingency Management
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
13 Years to 19 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 1, 2024 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Phase 3 Interventional Results available

Non-Opiate Treatment After Prenatal Opiate Exposure to Prevent Postnatal Injury to the Young Brain

NCT03396588
View directory record Official record
Conditions
Neonatal Abstinence Syndrome
Interventions
Clonidine, Morphine
Drug
Lead sponsor
Henrietta Bada
Other
Eligibility
12 Hours to 7 Days
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated May 22, 2025 · Synced Sep 20, 2026, 1:17 AM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Can Post-operative TAP Block Improve Quality of Recovery After C-sections in Patients on Methadone Maintenance?

NCT01644864
View directory record Official record
Conditions
Uncontrolled Postoperative Pain
Interventions
0.375% ROPIVACAINE, placebo
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years to 40 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 7, 2017 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Not applicable Interventional

Does Eliminating Coffee Avoid Fibrillation?

NCT05121519
View directory record Official record
Conditions
Atrial Fibrillation, Coffee
Interventions
Consume coffee, Avoid coffee
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years and older
Enrollment
200 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 Nov 25, 2025 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Phase 4 Interventional

Study of Aripiprazole in Subjects With Alcoholism

NCT00082199
View directory record Official record
Conditions
Alcoholism
Interventions
Aripiprazole, Placebo
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
14
States / cities
Farmington, Connecticut • New Haven, Connecticut • Indianapolis, Indiana + 11 more
Source: ClinicalTrials.gov public record
Updated Nov 10, 2013 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Phase 1 Interventional

Texting to Promote Tobacco Abstinence in Emergency Department Smokers: A Pilot Study

NCT02081144
View directory record Official record
Conditions
Smoking, Tobacco Abstinence
Interventions
Smokefree TXT Program, nicotine replacement patches, Nicotine Replacement Gum, Faxed Referral CT Smokers Quitline
Other · Drug · Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 4, 2020 · Synced Sep 20, 2026, 1:17 AM EDT
Recruiting No phase listed Observational

fMRI and Opioid Abstinence

NCT06651333
View directory record Official record
Conditions
Drug Use Disorder, Opioid Dependence, Opioid-Related Disorders, Opioid Use, Opioid Abuse
Interventions
fMRI
Diagnostic Test
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
2
States / cities
Hartford, Connecticut • New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Not applicable Interventional Results available

Extending Long-term Outcomes Through an Adaptive Aftercare Intervention

NCT02143063
View directory record Official record
Conditions
Cocaine Use Disorder, Contingency Management
Interventions
prize contingency management on a traditional twice weekly schedule for cocaine abstinence, prize contingency management on a variable interval schedule for cocaine abstinence, standard care
Behavioral
Lead sponsor
UConn Health
Other
Eligibility
18 Years and older
Enrollment
274 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
4
States / cities
Bridgeport, Connecticut • Hartford, Connecticut • New Britain, Connecticut + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 12, 2022 · Synced Sep 20, 2026, 1:17 AM EDT
Recruiting Not applicable Interventional

Preliminary Effectiveness of Enhanced Text Message + Incentives

NCT07420621
View directory record Official record
Conditions
Smoking Cessation, Pregnancy
Interventions
Text Messages, Incentives
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Sep 20, 2026, 1:17 AM EDT
Completed Not applicable Interventional Results available

Long-term Behavior Change - 1

NCT00158197
View directory record Official record
Conditions
Amphetamine-related Disorders
Interventions
contingency management voucher
Behavioral
Lead sponsor
Friends Research Institute, Inc.
Other
Eligibility
18 Years to 65 Years
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
2
States / cities
Los Angeles, California • Rancho Cucamonga, California
Source: ClinicalTrials.gov public record
Updated Aug 24, 2015 · Synced Sep 20, 2026, 1:17 AM EDT