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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Continue-smoking Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Prize Reinforcement for Smoking Cessation

NCT00865254
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Standard Treatment, Traditional Contingency Management, Early Enhanced Contingency Management
Behavioral
Lead sponsor
Wayne State University
Other
Eligibility
13 Years and older
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 27, 2013 · Synced Sep 24, 2026, 2:02 AM EDT
Terminated Not applicable Interventional

Effect of Switching From Cigarette Smoking to THS on Disease Progression in Mild to Moderate COPD Subjects With Chronic Bronchitis Symptoms.

NCT05569005
View directory record Official record
Conditions
COPD, Smoking, Tobacco Use
Interventions
THS use, Cigarette, Smoking Abstinence
Other
Lead sponsor
Philip Morris Products S.A.
Industry
Eligibility
35 Years to 65 Years
Enrollment
715 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
81
States / cities
Brandon, Florida • Cape Coral, Florida • Clearwater, Florida + 41 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2024 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

E-cigarette Nicotine Study

NCT04709471
View directory record Official record
Conditions
Nicotine Dependence, Electronic Cigarette Use, Cigarette Smoking
Interventions
Nicotine, Juul e-cigarette, Reduction
Drug · Device · Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
21 Years and older
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Aug 25, 2022 · Synced Sep 24, 2026, 2:02 AM EDT
Not yet recruiting Not applicable Interventional

Evaluation of Community Health Worker Support to Help People With Serious Mental Illness to Quit Smoking

NCT07789132
View directory record Official record
Conditions
Nicotine Dependance, Serious Mental Illness, Smoking (Tobacco) Addiction, Tobacco Cessation, Community Health Workers, Cardiovascular (CV) Risk, Tobacco Use Disorder
Interventions
Integrated CHW Support intervention, Enhanced usual care (EUC)
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
937 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 24, 2026, 2:02 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Nicotine Withdrawal and Reward Processing: Connecting Neurobiology to Real-world Behavior

NCT03840694
View directory record Official record
Conditions
Cigarette Smoking, Nicotine Withdrawal
Interventions
Smoking Abstinence, Ad Lib Smoking
Other
Lead sponsor
Duke University
Other
Eligibility
21 Years to 55 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 19, 2021 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Not applicable Interventional Results available

Promoting Successful Weight Loss in Primary Care in Louisiana

NCT02561221
View directory record Official record
Conditions
Obesity
Interventions
Lifestyle Counseling
Behavioral
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
20 Years to 75 Years
Enrollment
803 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Jul 31, 2023 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Educating Providers About Lung Screening

NCT05064046
View directory record Official record
Conditions
Lung Cancer
Interventions
LuCa + Health Disparity module
Behavioral
Lead sponsor
Georgetown University
Other
Eligibility
Not listed
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Aug 4, 2022 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Bronchoscopy in Determining the Effect of E-Cigarette Smoking on Biomarkers in the Lungs

NCT03691350
View directory record Official record
Conditions
Cigarette Smoker, Current Every Day Smoker
Interventions
Bronchoscopy with Bronchoalveolar Lavage, Cigarette, Electronic Cigarette, Laboratory Biomarker Analysis, Nicotine Replacement, Questionnaire Administration
Procedure · Drug · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years to 52 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced Sep 24, 2026, 2:02 AM EDT
Recruiting Phase 4 Interventional

Nicotine Replacement Therapy, Counseling, Varenicline, and Bupropion for Smoking Cessation, the PISCES I Trial

NCT04604509
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Bupropion Hydrochloride Controlled-release, Nicotine Replacement, Questionnaire Administration, Tobacco Cessation Counseling, Varenicline
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
2,010 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Extended Treatment for Smoking Cessation

NCT01330043
View directory record Official record
Conditions
Smoking Cessation
Interventions
Bupropion, Nicotine patch, Varenicline
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Enrollment
223 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jul 31, 2017 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Not applicable Interventional Results available

Mobile Contingency Management for Marijuana and Tobacco Cessation

NCT02869451
View directory record Official record
Conditions
Cigarette Smoking, Marijuana Abuse
Interventions
bupropion, transdermal nicotine patch, Nicotine polacrilex, nicotine lozenge, counseling for marijuana and smoking cessation, mobile contingency management
Drug · Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years to 70 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 6, 2020 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Study to Assess Tobacco-related Biomarkers of Exposure in Smokers Using myBlu E-cigarettes

NCT04019626
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Continue-smoking, myblu Tobacco 2.5%, myblu Tobacco 4.0%, myblu Honeymoon 2.5%, myblu Honeymoon 4.0%, JUUL 5%
Other
Lead sponsor
Fontem Ventures BV
Industry
Eligibility
21 Years to 65 Years
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jun 29, 2021 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Varenicline In-Patient Study

NCT01413516
View directory record Official record
Conditions
Smoking Cessation
Interventions
Smoking cessation counseling, Placebo, Varenicline
Behavioral · Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Nov 13, 2023 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Text Messaging-Based Smoking Cessation Program for Homeless Youth

NCT03874585
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Group counseling and nicotine replacement, Group counseling, nicotine replacement, and text messaging support
Behavioral
Lead sponsor
RAND
Other
Eligibility
18 Years to 25 Years
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
3
States / cities
Los Angeles, California • Venice, California
Source: ClinicalTrials.gov public record
Updated Jul 21, 2020 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Smoking Relapse Prevention in Schizophrenia

NCT00320697
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Smokers
Interventions
bupropion + nicotine patch + nicotine gum or lozenges, Placebo pill + placebo patch
Drug
Lead sponsor
North Suffolk Mental Health Association
Other
Eligibility
18 Years to 70 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 26, 2016 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Faith Based Pilot Intervention to Reduce Tobacco Use Among Somali Males

NCT03379142
View directory record Official record
Conditions
Tobacco Use, Faith-Based, Community-engaged, Text Messaging
Interventions
Faith-Based messages
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 79 Years · Male only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
2
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 3, 2020 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Combination of E-cigarettes and Varenicline for Tobacco Harm Reduction

NCT04210180
View directory record Official record
Conditions
Smoking Cessation, Harm Reduction
Interventions
Varenicline, e-cigarette
Drug · Other
Lead sponsor
Rose Research Center, LLC
Industry
Eligibility
21 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
2
States / cities
Charlotte, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 23, 2022 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Connect to Quit for Smoking

NCT01299896
View directory record Official record
Conditions
Smoking, Smoking Cessation
Interventions
Coordinated Care, Usual Care
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
633 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 21, 2016 · Synced Sep 24, 2026, 2:02 AM 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 18, 2017 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Characterization of Product Use in Smokers Switching From Cigarettes to a RELX Electronic Nicotine Delivery System

NCT04708106
View directory record Official record
Conditions
Electronic Cigarette Use
Interventions
RELX ENDS Tobacco Flavor, RELX ENDS Menthol Flavor, RELX ENDS Tobacco and Menthol Flavors
Other
Lead sponsor
Cheerain HK Limited
Industry
Eligibility
22 Years to 65 Years
Enrollment
194 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
5
States / cities
Bentonville, Arkansas • Lexington, Kentucky • Springfield, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 21, 2021 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Phase 3 Interventional Results available

Concurrent Bupropion / Varenicline for Smoking Cessation

NCT01303861
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Varenicline, Bupropion, Nicotine patches, Nicotine Inhaler
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Enrollment
702 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
4
States / cities
Charlotte, North Carolina • Durham, North Carolina • Raleigh, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 5, 2014 · Synced Sep 24, 2026, 2:02 AM EDT
Completed No phase listed Observational

Nicotinic Receptor Levels After Stopping Smoking

NCT01704573
View directory record Official record
Conditions
Nicotine Addiction
Interventions
2-[18F]-fluro-3-[2(S)-2-azethidinylmethoxy]-pyridine
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 15, 2017 · Synced Sep 24, 2026, 2:02 AM EDT
Completed Phase 2 Interventional Results available

Effect of Galantamine on Smoking Abstinence

NCT01548638
View directory record Official record
Conditions
Nicotine Addiction
Interventions
Galantamine ER
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 60 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 25, 2017 · Synced Sep 24, 2026, 2:02 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

GARM II: A Study on the Genetics of Age-related Maculopathy

NCT01115387
View directory record Official record
Conditions
Age-related Macular Degeneration, Age-related Maculopathy
Interventions
Observational-1, Observational-2
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
49 Years and older
Enrollment
603 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2027
U.S. locations
2
States / cities
Los Angeles, California • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 6, 2023 · Synced Sep 24, 2026, 2:02 AM EDT