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ClinicalTrials.gov public records Last synced Oct 2, 2026, 10:59 PM EDT

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Showing 73–96 of 2,323 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Smoking Tobacco Clear all
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Topiramate Alone and in Combination With the Nicotine Patch for Smoking Cessation: A Pilot Study

NCT00755716
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Placebo (sugar pill), Topiramate, Nicotine patch
Drug
Lead sponsor
UConn Health
Other
Eligibility
18 Years to 65 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2013
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 16, 2017 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Phase 1Phase 2 Interventional

The Role of Nicotine and Non-Nicotine Alkaloids in E-Cigarette Use and Dependence

NCT02590393
View directory record Official record
Conditions
Nicotine Dependence
Interventions
E-cigarettes
Combination Product
Lead sponsor
Duke University
Other
Eligibility
21 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 21, 2024 · Synced Oct 2, 2026, 10:59 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Investigation of the Effects of Electronic Cigarettes on Vascular Health

NCT03041493
View directory record Official record
Conditions
Vascular Health
Interventions
Electronic cigarette, traditional cigarette, (sham cigarette) - no actual exposure to cigarettes
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years to 50 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 18, 2021 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Optimizing Text Messaging to Improve Adherence to Web-Based Cessation Treatment

NCT02585206
View directory record Official record
Conditions
Smoking Cessation
Interventions
Personalization, Integration, Dynamic Tailoring, Message Intensity, Optimal-Adherence Text
Behavioral
Lead sponsor
Truth Initiative
Other
Eligibility
18 Years and older
Enrollment
1,485 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Feb 16, 2021 · Synced Oct 2, 2026, 10:59 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

American Indian Smokefree Native RCT

NCT06544811
View directory record Official record
Conditions
Smoking Cessation
Interventions
Smoking Cessation Program, Cultural Smoking Cessation Program
Other
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
416 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Oct 2, 2026, 10:59 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

A Virtual Reality Vaping Prevention Intervention for Adolescents

NCT07362069
View directory record Official record
Conditions
Vaping
Interventions
Not listed
Lead sponsor
Yale University
Other
Eligibility
12 Years to 15 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
2
States / cities
New Haven, Connecticut • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Phase 2 Interventional Results available

The Effect of Naltrexone and Varenicline on Alcohol-Mediated Smoking Lapse

NCT00773422
View directory record Official record
Conditions
Smoking
Interventions
naltrexone, varenicline, placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 23, 2018 · Synced Oct 2, 2026, 10:59 PM EDT
Completed No phase listed Observational

Electronic Cigarette Use During Pregnancy

NCT03480373
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Not listed
Lead sponsor
UConn Health
Other
Eligibility
16 Years to 45 Years · Female only
Enrollment
182 participants
Timeline
2018 – 2023
U.S. locations
6
States / cities
Denver, Colorado • Farmington, Connecticut • Hartford, Connecticut + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparative Effectiveness of Adding Weight Control to Smoking Cessation Quitlines

NCT01867983
View directory record Official record
Conditions
Cigarette Smoking, Overweight, Obesity
Interventions
Weight gain prevention and smoking cessation, Smoking cessation
Behavioral
Lead sponsor
Consumer Wellness Solutions
Industry
Eligibility
18 Years and older
Enrollment
2,540 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 15, 2016 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Nicotine Replacement and Counseling In Adolescents

NCT00625794
View directory record Official record
Conditions
Smoking Cessation
Interventions
Nicotine nasal spray, Smoking cessation counseling
Drug · Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
15 Years to 18 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 28, 2008 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Memantine Versus Bupropion on Smoking Relapse in Nicotine-Dependent Individuals - 3

NCT00136786
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Memantine
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 21, 2018 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Switching to Reduced Oxidant or Nicotine Content Cigarettes in Smokers

NCT02415270
View directory record Official record
Conditions
Tobacco Smoking Behavior
Interventions
Reduced Nicotine Cigarettes, Reduced ROS/RNS, Control
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 27, 2018 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Not applicable Interventional

Influencer Marketing: a Survey-based Experiment Among Adolescents

NCT06501937
View directory record Official record
Conditions
Vaping
Interventions
Influencer marketing
Other
Lead sponsor
University of Southern California
Other
Eligibility
13 Years to 17 Years
Enrollment
664 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 15, 2024 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Sensitivity to Intravenous Nicotine: Genetic Moderators

NCT00969137
View directory record Official record
Conditions
Nicotine Dependence
Interventions
saline, Nicotine
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years
Enrollment
213 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2016
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 19, 2017 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Breathe 2 Project 3: Comprehensive Chronic Care

NCT05382221
View directory record Official record
Conditions
Smoking Cessation, Smoking Abstinence
Interventions
Comprehensive Chronic Care, Standard Care
Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
979 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
2
States / cities
Madison, Wisconsin • Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Combining Varenicline and Guanfacine for Smoking Cessation

NCT04198116
View directory record Official record
Conditions
Smoking Cessation
Interventions
Varenicline, Guanfacine ER
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
167 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

BRP1602: Evaluation of Technical and Logistical Feasibility to Measure Lung Permeability

NCT06105424
View directory record Official record
Conditions
Tobacco Use, Smoking, Smoking, Tobacco
Interventions
Lung Permeability Assessment
Procedure
Lead sponsor
RAI Services Company
Industry
Eligibility
30 Years to 50 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Oct 27, 2023 · Synced Oct 2, 2026, 10:59 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Baby Steps III: Testing a Clinician and Patient Intervention to Promote Smoking Cessation Among Pregnant Women

NCT04985903
View directory record Official record
Conditions
Smoking Cessation, Pregnancy, Communication Research
Interventions
Clinician Communication Intervention, 5A's lecture
Behavioral · Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
840 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Not applicable Interventional Results available

Smoking Cessation After Hospitalization for a Cardiopulmonary Illness

NCT01791803
View directory record Official record
Conditions
Smoking Cessation
Interventions
hypnotherapy, Nicotine
Behavioral · Drug
Lead sponsor
North Shore Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Salem, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 19, 2017 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vaping Prevention and Vaping in Youth (Vapechat)

NCT06003439
View directory record Official record
Conditions
Vaping, Smoking Cessation
Interventions
Virtual Reality Program, VR Program
Behavioral
Lead sponsor
Boston University
Other
Eligibility
13 Years to 19 Years
Enrollment
119 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 7, 2024 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mood and Smoking: A Comparison of Smoking Cessation Treatments

NCT00075972
View directory record Official record
Conditions
Smoking Cessation, Mood Tolerance, Mood Management, Nicotine Replacement Therapy
Interventions
Mood Tolearance, Mood Management, Nicotine Replacement therapy
Behavioral · Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
Not listed
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 26, 2015 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD201203: A Study to Determine Subject Puffing Patterns of a Non-cylindrical, Closed, Electronic Nicotine Delivery System at Three Nicotine Concentrations in an Ambulatory Setting

NCT05118139
View directory record Official record
Conditions
Smoking, Tobacco Use, Electronic Cigarette Use
Interventions
P1211216, P1213416, P1213716, P1213616, P1213816, P1211916, P1210016, P1211217, P1213417, P1211222, P1213422, P1213722, P1213622, P1213822, P1211922, P1210022
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years and older
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
4
States / cities
Stockbridge, Georgia • Lexington, Kentucky • Hickory, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 10, 2025 · Synced Oct 2, 2026, 10:59 PM EDT
Completed Phase 2 Interventional Results available

Nicotinic Receptors and Schizophrenia

NCT01400477
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
DMXB-A-SR, Placebo
Drug · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 65 Years
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
2
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 7, 2019 · Synced Oct 2, 2026, 10:59 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Experimental Tobacco Marketplace in Regulating Flavored Tobacco Products in Menthol Cigarette Smokers

NCT03897530
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Smoking Cessation Intervention, Functional Assessment, Questionnaire Administration
Behavioral · Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
103 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Apr 3, 2024 · Synced Oct 2, 2026, 10:59 PM EDT