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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
Recruiting No phase listed Observational Accepts healthy volunteers

Collection of Airway, Blood and/or Urine Specimens From Subjects for Research Studies

NCT01776398
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD), Smoking, Smoking Cessation, Idiopathic Pulmonary Fibrosis (IPF), Rheumatoid Arthritis-Associated Interstitial Lung Disease, Scleroderma-Associated Interstitial Lung Disease (SSC-ILD)
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Sep 5, 2026, 3:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Interventions for Smoking Among Persons in Recovery

NCT00714896
View directory record Official record
Conditions
Smoking Cessation
Interventions
Stepped-Care, Control
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Walnut Creek, California
Source: ClinicalTrials.gov public record
Updated May 28, 2013 · Synced Sep 5, 2026, 3:30 AM EDT
Recruiting Not applicable Interventional

Beating Lung Cancer in Ohio Protocol in Improving Survival in Patients With Stage IV Non-Small Cell Lung Cancer

NCT03199651
View directory record Official record
Conditions
Cigarette Smoker, Current Smoker, Lung Adenocarcinoma, Squamous Cell Lung Carcinoma, Stage IV Non-Small Cell Lung Cancer
Interventions
Best Practice, Biospecimen Collection, Laboratory Biomarker Analysis, Medical Chart Review, Quality-of-Life Assessment, Questionnaire Administration, Smoking Cessation Intervention
Other · Procedure · Behavioral
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
3,584 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2028
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Sep 5, 2026, 3:30 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 Sep 5, 2026, 3:30 AM EDT
Not listed No phase listed Observational

Project PEER: Understanding the Lung Cancer Patient ExperiEnce in the Real-World Setting

NCT05826756
View directory record Official record
Conditions
Lung Cancer Patients, Caregivers
Interventions
There are no interventions in this study. All participants complete online surveys.
Other
Lead sponsor
LUNGevity Foundation
Other
Eligibility
18 Years and older
Enrollment
1,300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 27, 2023 · Synced Sep 5, 2026, 3:30 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Lung Cancer Biomarkers and Screening

NCT00301119
View directory record Official record
Conditions
Lung Cancer
Interventions
Not listed
Lead sponsor
NYU Langone Health
Other
Eligibility
50 Years and older
Enrollment
3,606 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2030
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Sep 5, 2026, 3:30 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Behavioral Activation Therapy and Nicotine Replacement Therapy in Increasing Smoking Cessation

NCT02697227
View directory record Official record
Conditions
Cigarette Smoker, Tobacco Use Disorder
Interventions
Behavioral Intervention, Laboratory Biomarker Analysis, Nicotine Patch, Questionnaire Administration, Smoking Cessation Intervention
Behavioral · Other · Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years to 75 Years
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 5, 2026, 3:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Bioequivalence Study of 21 Milligram (mg) Nicotine Transdermal Patches (NicoDerm CQ, GlaxoSmithKline [GSK] Dungarvan) Compared to the Current Marketed 21 mg Nicotine Transdermal Patches (NicoDerm CQ, Alza) in Healthy Adult Smokers

NCT05024747
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
NicoDerm CQ patch (GSK Dungarvan), NicoDerm CQ (Alza)
Drug
Lead sponsor
HALEON
Industry
Eligibility
21 Years to 55 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Springfield, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 20, 2024 · Synced Sep 5, 2026, 3:30 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 Sep 5, 2026, 3:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Salt-Based E-cigarette

NCT04238832
View directory record Official record
Conditions
Smoking, Tobacco Use
Interventions
Salt Base Nicotine, Free Base Nicotine
Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
21 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 8, 2021 · Synced Sep 5, 2026, 3:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Nicotine, Non-Smokers With and Without ADHD, and Genetics Study

NCT01819259
View directory record Official record
Conditions
Non-smoker, ADHD
Interventions
Nicotine nasal spray, Placebo
Drug
Lead sponsor
Scott Kollins, PhD
Other
Eligibility
18 Years to 25 Years
Enrollment
136 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 29, 2018 · Synced Sep 5, 2026, 3:30 AM EDT
Active, not recruiting Phase 1 Interventional Results available

MUC1 Vaccine in Preventing Lung Cancer in Current and Former Smokers at High Risk for Lung Cancer

NCT03300817
View directory record Official record
Conditions
Lung Carcinoma
Interventions
Laboratory Biomarker Analysis, MUC1 Peptide-Poly-ICLC Vaccine
Other · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
55 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
2
States / cities
Rochester, Minnesota • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 5, 2026, 3:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nicotine Delivery From Novel Non-Tobacco Electronic System in Smokers

NCT02575885
View directory record Official record
Conditions
Cigarette Smoker, Current Smoker, Healthy Subject
Interventions
Electronic Cigarette, Laboratory Biomarker Analysis, Pharmacological Study, Questionnaire Administration
Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years to 55 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jun 11, 2018 · Synced Sep 5, 2026, 3:30 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Smoking-induced EGF-dependent Reprogramming of Airway Basal Cell Function

NCT01974180
View directory record Official record
Conditions
Smoking, COPD, Chronic Obstructive Pulmonary Disease
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 25, 2017 · Synced Sep 5, 2026, 3:30 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Aspirin and Zileuton and Biomarker Expression in Nasal Tissue of Current Smokers

NCT02348203
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Aspirin, Laboratory Biomarker Analysis, Placebo Administration, Zileuton
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
2
States / cities
Tucson, Arizona • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 1, 2022 · Synced Sep 5, 2026, 3:30 AM EDT
Completed Phase 4 Interventional Results available

A Multi-National Study To Assess How Effective And Safe The Smoking Cessation Medicine Varenicline Is In Smokers Who Have Already Tried Varenicline In The Past As A Prescription Medicine From Their Usual Healthcare Provider

NCT01244061
View directory record Official record
Conditions
Smoking Cessation
Interventions
Varenicline, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
498 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
8
States / cities
Los Angeles, California • DeLand, Florida • Lexington, Kentucky + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2014 · Synced Sep 5, 2026, 3:30 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Imaging Regional Lung Defect Severity

NCT01640288
View directory record Official record
Conditions
COPD
Interventions
Perfluorinated Gas/Oxygen Mixture, High Resolution CT of the Chest
Drug · Other
Lead sponsor
Hal C Charles
Other
Eligibility
18 Years and older
Enrollment
171 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 16, 2020 · Synced Sep 5, 2026, 3:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Testing Financial Incentive Interventions in Dyadic-Smoker Couples

NCT04832360
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Financial Incentives
Behavioral
Lead sponsor
University of Georgia
Other
Eligibility
18 Years and older
Enrollment
190 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 23, 2025 · Synced Sep 5, 2026, 3:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Project CASA in Promoting Smoke-Free Indoor Air Policy in Mexican American Households

NCT00850954
View directory record Official record
Conditions
Cigarette Smoker, Current Smoker, Currently Living With Smoker
Interventions
Informational Intervention, Smoking Cessation Intervention, Survey Administration
Other · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
168 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2018
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 27, 2023 · Synced Sep 5, 2026, 3:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Quit4Health Intervention in Supporting Smoking Cessation and Preventing Smoking Initiation in Young Adults

NCT04009590
View directory record Official record
Conditions
Cigarette Smoking, Current Smoker
Interventions
Educational Intervention, Questionnaire Administration, Smoking Cessation Intervention
Other · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years to 35 Years
Enrollment
579 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 21, 2021 · Synced Sep 5, 2026, 3:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

IQOS (Non-Cigarette Tobacco Product) Pilot Study

NCT04357379
View directory record Official record
Conditions
Smoking, Tobacco Use
Interventions
IQOS
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
21 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 26, 2021 · Synced Sep 5, 2026, 3:30 AM EDT
Completed No phase listed Observational

CT Scans in Screening for Lung Cancer in Current and Former Smokers

NCT00625690
View directory record Official record
Conditions
Lung Cancer
Interventions
questionnaire administration, computed tomography, evaluation of cancer risk factors, study of high risk factors
Other · Procedure
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years to 120 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2012
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 25, 2023 · Synced Sep 5, 2026, 3:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Motivating Change in Aging Smokers

NCT05194917
View directory record Official record
Conditions
Smoking Cessation
Interventions
Older Smoker Motivational Intervention, Control Motivational Message
Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
50 Years to 80 Years
Enrollment
201 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 6, 2025 · Synced Sep 5, 2026, 3:30 AM EDT
Completed Phase 3 Interventional Results available

Study Comparing Veliparib Plus Carboplatin and Paclitaxel Versus Investigator's Choice of Standard Chemotherapy in Adults Receiving First Cytotoxic Chemotherapy for Metastatic or Advanced Non-Squamous Non-Small Cell Lung Cancer (NSCLC) and Who Are Current or Former Smokers

NCT02264990
View directory record Official record
Conditions
Non-squamous Non-small Cell Lung Cancer
Interventions
Paclitaxel, Carboplatin, Cisplatin, Veliparib, Pemetrexed
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years and older
Enrollment
595 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
25
States / cities
Huntsville, Alabama • Mobile, Alabama • Springdale, Arkansas + 21 more
Source: ClinicalTrials.gov public record
Updated Feb 25, 2021 · Synced Sep 5, 2026, 3:30 AM EDT