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Showing 1–24 of 134 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Current Smoker Clear all
Terminated Early Phase 1 Interventional

Bupropion Hydrochloride or Patient's Choice for Smoking Cessation in Patients With Squamous Cell Head and Neck Cancer Undergoing Radiation Therapy With or Without Chemotherapy

NCT02582008
View directory record Official record
Conditions
Current Smoker, Head and Neck Squamous Cell Carcinoma, Hypopharyngeal Squamous Cell Carcinoma, Laryngeal Squamous Cell Carcinoma, Nasopharyngeal Carcinoma, Oral Cavity Squamous Cell Carcinoma, Oropharyngeal Squamous Cell Carcinoma
Interventions
Bupropion Hydrochloride, Laboratory Biomarker Analysis, Nicotine Replacement, Quality-of-Life Assessment, Questionnaire Administration, Varenicline
Drug · Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
2
States / cities
Winston-Salem, North Carolina • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 21, 2023 · Synced Jul 21, 2026, 9:21 AM EDT
Completed Phase 2 Interventional Results available

Phase II Trial to Correlate Radiographic Response Induced By Gefitinib With Mutations in the Protein-Tyrosine Kinase Domain of the EGF Receptor Gene

NCT00588445
View directory record Official record
Conditions
Lung Cancer, Non-small Cell Lung Cancer, Bronchioloalveolar Cancer
Interventions
Gefitinib
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 21, 2016 · Synced Jul 21, 2026, 9:21 AM EDT
Terminated Phase 1 Interventional

Effect of High-Dose Vitamin D3 in Smokers and Non-Smokers With and Without HIV

NCT03270709
View directory record Official record
Conditions
HIV/AIDS, Vitamin D Deficiency, Smoker Lung
Interventions
Vitamin D3 450,000 IU orally
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 20, 2021 · Synced Jul 21, 2026, 9:21 AM EDT
Completed No phase listed Observational

Airway Epithelium Gene Expression: AEGIS IDE

NCT00746759
View directory record Official record
Conditions
Lung Cancer
Interventions
Biomarker (not used as an intervention)
Device
Lead sponsor
Allegro Diagnostics, Corp.
Industry
Eligibility
21 Years and older
Enrollment
1,331 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
21
States / cities
Birmingham, Alabama • Phoenix, Arizona • Sacramento, California + 17 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2015 · Synced Jul 21, 2026, 9:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mobile Smoking Cessation Intervention in Enhancing Cancer Outreach in Low-Income Adult Smokers

NCT00948129
View directory record Official record
Conditions
Cigarette Smoker, Current Every Day Smoker
Interventions
Laboratory Biomarker Analysis, Smoking Cessation Intervention, Telephone-Based Intervention, Tobacco Cessation Counseling
Other · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
626 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 19, 2023 · Synced Jul 21, 2026, 9:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Developing Smokers for Smoker (S4S): A Collective Intelligence Tailoring System

NCT02265354
View directory record Official record
Conditions
Tobacco Smoking
Interventions
Collective-Intelligence computer tailored health communication, Rule-based computer tailored health communication
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
19 Years and older
Enrollment
260 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 7, 2020 · Synced Jul 21, 2026, 9:21 AM EDT
Completed Not applicable Interventional

Testing Methods of Self-persuasion Involving Cigarette Smoking

NCT02069483
View directory record Official record
Conditions
Smoking
Interventions
Motivational Interviewing, Tailored Feedback
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 25, 2014 · Synced Jul 21, 2026, 9:21 AM EDT
Recruiting Phase 2 Interventional

Immunoprevention for High-risk Lung Lesions

NCT07284485
View directory record Official record
Conditions
High-risk Lung Nodules
Interventions
Nadunolimab
Biological
Lead sponsor
Robert Samstein
Other
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 7, 2026 · Synced Jul 21, 2026, 9:21 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Defective FGFR2 Signaling in the Small Airway Basal Progenitor Cells in COPD

NCT02341326
View directory record Official record
Conditions
COPD, Smoking, Lung Disorder
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
111 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 10, 2025 · Synced Jul 21, 2026, 9:21 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Alternate Nicotine Delivery Systems and Airway Epithelial Biology

NCT01974063
View directory record Official record
Conditions
Smoking, Smoking Cessation
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 2, 2018 · Synced Jul 21, 2026, 9:21 AM EDT
Completed Phase 1 Interventional

Investigation of Nicotine Seeking Behavior in Current Smokers

NCT03670212
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Yohimbine Hydrochloride, Hydrocortisone, Lactose Monohydrate Powder
Drug
Lead sponsor
Wayne State University
Other
Eligibility
21 Years to 35 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 12, 2018 · Synced Jul 21, 2026, 9:21 AM EDT
Terminated No phase listed Observational

SPECT Imaging of DAT Genotype

NCT01492322
View directory record Official record
Conditions
Nicotine Withdrawal
Interventions
TRODAT
Radiation
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 60 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 11, 2015 · Synced Jul 21, 2026, 9:21 AM EDT
Not listed Not applicable Interventional

Strategies to Connect Patients at Federally Qualified Health Clinics With Evidence Based Tobacco Cessation Treatment

NCT03900767
View directory record Official record
Conditions
Current Smoker, Tobacco Smoking, Tobacco Use
Interventions
Electronic Health Record intervention, Smoking Cessation Intervention, Telephone-Based Intervention
Other · Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
12,009 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Aug 2, 2023 · Synced Jul 21, 2026, 9:21 AM EDT
Terminated Not applicable Interventional Results available

tDCS and Cognitive Training Intervention for Chronic Smokers With Schizophrenia

NCT03588728
View directory record Official record
Conditions
Transcranial Direct Current Stimulation, Smoking, Cigarette, Schizophrenia
Interventions
Transcranial Direct Current Stimulation, Cognitive Remediation (CR)
Other · Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 65 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 12, 2023 · Synced Jul 21, 2026, 9:21 AM EDT
Completed Early Phase 1 Interventional

Informing the Adaptation of a CHW Model to Facilitate Lung Cancer Screening for the Chinese Community

NCT02914899
View directory record Official record
Conditions
Lung Cancer Screening, Current or Past Cigarette Smoker
Interventions
Surveys, Navigation, Focus groups, In-depth interviews
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
21 Years to 80 Years
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 20, 2025 · Synced Jul 21, 2026, 9:21 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

The Effects of Smoking Withdrawal On Resting State Functional Connectivity

NCT01632384
View directory record Official record
Conditions
Smoking
Interventions
Abstain from smoking for 24 hours
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years to 55 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 30, 2017 · Synced Jul 21, 2026, 9:21 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Vaped Phenanthrene

NCT07134426
View directory record Official record
Conditions
Former Smoker, Non-Smoker
Interventions
D10-phenanthrene
Other
Lead sponsor
University of Minnesota
Other
Eligibility
21 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Jul 21, 2026, 9:21 AM EDT
Completed Phase 4 Interventional

Motivation Project: Testing Intervention Components for the Smoker Who is Unwilling to Quit

NCT02354872
View directory record Official record
Conditions
Smoking, Motivation, Smoking Cessation
Interventions
Nicotine Mini-Lozenge, Behavioral Reduction Counseling, 5Rs Motivation Counseling, Behavioral Activation Counseling, No Treatment
Drug · Behavioral · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
577 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 21, 2020 · Synced Jul 21, 2026, 9:21 AM EDT
Withdrawn Not applicable Interventional

JeffQuit Group Therapy Program for Smoking Cessation in Patients With a History of Cancer

NCT02591433
View directory record Official record
Conditions
Current Smoker, Malignant Neoplasm
Interventions
Tobacco Cessation Counseling, Support Group Therapy, Quality-of-Life Assessment
Other
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 30, 2025 · Synced Jul 21, 2026, 9:21 AM EDT
Active, not recruiting Phase 2 Interventional Results available

Nivolumab for the Reversal of Squamous Dysplasia in High Risk Current and Former Smokers

NCT03347838
View directory record Official record
Conditions
Bronchial Dysplasia, Tobacco Smoking, History of Non-Small Cell Lung Cancer, History of Head and Neck Cancer
Interventions
Nivolumab
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 80 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
2
States / cities
Aurora, Colorado • Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 11, 2025 · Synced Jul 21, 2026, 9:21 AM EDT
Completed Not applicable Interventional Results available

A Trial of E-cigarettes in Current Cigarette Smokers

NCT02357173
View directory record Official record
Conditions
Smoking, Nicotine Dependence, Nicotine Dependence, Other Tobacco Product
Interventions
electronic cigarette, cigarette group
Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 3, 2018 · Synced Jul 21, 2026, 9:21 AM EDT
Recruiting Phase 4 Interventional

The Options 2 Study

NCT06595459
View directory record Official record
Conditions
Smoker, Smoking Cessation
Interventions
Nicotine Pouches, Mini Nicotine lozenges
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
21 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jul 21, 2026, 9:21 AM EDT
Completed No phase listed Observational

Behavioral Pharmacology Associated With Cigar Smoking

NCT02218840
View directory record Official record
Conditions
Cigar Smoking
Interventions
Smoking topography
Other
Lead sponsor
Food and Drug Administration (FDA)
Federal
Eligibility
18 Years to 99 Years
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Feb 27, 2023 · Synced Jul 21, 2026, 9:21 AM EDT
Completed Not applicable Interventional

Feasibility and Smokers' Reactions to DNA Feedback

NCT02922790
View directory record Official record
Conditions
Smoking
Interventions
standard health information, standard health information plus info. on DNA damage, Subjects will review standard health information and information on DNA damage, plus pictures of their DNA damage
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 4, 2018 · Synced Jul 21, 2026, 9:21 AM EDT