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ClinicalTrials.gov public records Last synced Nov 3, 2026, 7:28 AM EST

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 121–144 of 797 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Smoker Clear all
Recruiting No phase listed Observational Accepts healthy volunteers

Lung Macrophage Populations and Functions in Chronic Obstructive Pulmonary Disease (COPD)-Susceptible Smokers

NCT04722835
View directory record Official record
Conditions
Copd, Smoking, Tobacco Use
Interventions
Bronchoscopy with Bronchoalveolar Lavage (BAL)
Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
40 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2030
U.S. locations
3
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Nov 3, 2026, 7:28 AM EST
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 28, 2023 · Synced Nov 3, 2026, 7:28 AM EST
Completed Not applicable Interventional Accepts healthy volunteers

CSD170303: Study to Assess Nicotine Uptake in Smokers From Electronic Cigarettes

NCT03234010
View directory record Official record
Conditions
Smoking
Interventions
FT21092, FT21093, FT21096, FT21097
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
122 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Lakewood, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 20, 2017 · Synced Nov 3, 2026, 7:28 AM EST
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 5, 2018 · Synced Nov 3, 2026, 7:28 AM EST
Recruiting Phase 4 Interventional

Mechanism(s) of Airflow Limitation During Exacerbation of Asthma

NCT01225913
View directory record Official record
Conditions
Asthma
Interventions
fluticasone/salmeterol in all asthmatics, budesonide/formoterol or fluticasone/salmeterol in all asthmatics
Drug
Lead sponsor
Gelb, Arthur F., M.D.
Individual
Eligibility
10 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2027
U.S. locations
1
States / cities
Lakewood, California
Source: ClinicalTrials.gov public record
Updated Oct 26, 2023 · Synced Nov 3, 2026, 7:28 AM EST
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 26, 2021 · Synced Nov 3, 2026, 7:28 AM EST
Completed Not applicable Interventional Results available

Financial Incentives for Homeless Smokers: A Community-based RCT

NCT04445662
View directory record Official record
Conditions
Tobacco Smoking
Interventions
Financial incentives, Varenicline, Tobacco coaching
Behavioral · Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 21, 2025 · Synced Nov 3, 2026, 7:28 AM EST
Completed Not applicable Interventional Results available

Study of Mood Effects of Varenicline (Chantix) in Depressed Outpatient Smokers

NCT00525837
View directory record Official record
Conditions
Depressive Disorder, Smoking
Interventions
fixed dose varenicline, varenicline
Drug
Lead sponsor
Butler Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Nov 28, 2018 · Synced Nov 3, 2026, 7:28 AM EST
Completed Not applicable Interventional

Potential Impact of Menthol Ban in Cigarettes and E-cigarettes

NCT05259566
View directory record Official record
Conditions
Tobacco Smoking
Interventions
menthol ban in cigarettes only, total menthol ban
Behavioral
Lead sponsor
Yale University
Other
Eligibility
21 Years and older
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Nov 3, 2026, 7:28 AM EST
Completed Not applicable Interventional Accepts healthy volunteers

A Study to Evaluate the Pharmacokinetic Profiles of Cigarettes and E-Cigarettes With Nicotine Salt Formulations

NCT03822546
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Conventional cigarette, myblu 25 mg freebase, myblu 16 mg nicotine salt, myblu 25 mg nicotine salt, myblu 40 mg nicotine salt, blu PRO 48 mg nicotine salt
Other
Lead sponsor
Fontem Ventures BV
Industry
Eligibility
25 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jan 30, 2019 · Synced Nov 3, 2026, 7:28 AM EST
Completed Phase 2 Interventional Results available

Clinical Trial of Lung Cancer Chemoprevention With Sulforaphane in Former Smokers

NCT03232138
View directory record Official record
Conditions
Lung Cancer
Interventions
Sulforaphane, Placebo
Dietary Supplement · Drug
Lead sponsor
Jian-Min Yuan, MD
Other
Eligibility
55 Years to 75 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 17, 2024 · Synced Nov 3, 2026, 7:28 AM EST
Recruiting Not applicable Interventional

Evaluation of a Novel mHealth Intervention for People Who Are Ambivalent About Quitting Smoking

NCT07459621
View directory record Official record
Conditions
Smoking Behaviors
Interventions
Control Intervention, Experimental Intervention
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 10, 2026 · Synced Nov 3, 2026, 7:28 AM EST
Completed Not applicable Interventional Accepts healthy volunteers

Using Technology to Help Low-income and Latino Smokers Quit

NCT02666482
View directory record Official record
Conditions
Smoking Cessation
Interventions
Stop Smoking SF Web App - baseline
Behavioral
Lead sponsor
i4Health
Other
Eligibility
18 Years to 99 Years
Enrollment
1,107 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Nov 15, 2018 · Synced Nov 3, 2026, 7:28 AM EST
Completed Not applicable Interventional Results available

Pharmacokinetic and Subjective Effects of Heated Tobacco Products

NCT06356610
View directory record Official record
Conditions
Tobacco Use
Interventions
Product A, Product B, Product C, Product D, Product E, Product F
Other
Lead sponsor
Altria Client Services LLC
Industry
Eligibility
22 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
3
States / cities
Lexington, Kentucky • Springfield, Missouri • Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 27, 2026 · Synced Nov 3, 2026, 7:28 AM EST
Terminated Not applicable Interventional Accepts healthy volunteers

Evaluation of Acute and Subacute Effects of Nicotine Free Electronic Cigarette(NCFE) Vapors

NCT02585791
View directory record Official record
Conditions
Healthy Lifetime Non-smokers
Interventions
Propylene Glycol, vegetable glycerin, PG+VG
Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 14, 2020 · Synced Nov 3, 2026, 7:28 AM EST
Completed Phase 2 Interventional Results available

18F-FSPG PET/CT in Diagnosing Early Lung Cancer in Patients With Lung Nodules

NCT03824535
View directory record Official record
Conditions
Cigarette Smoker, Current Smoker, Former Smoker, Multiple Pulmonary Nodules, Pulmonary Nodule
Interventions
Computed Tomography, Fludeoxyglucose F-18, Fluorine F 18 L-glutamate Derivative BAY94-9392, Positron Emission Tomography (PET/CT)
Diagnostic Test · Drug
Lead sponsor
Andrei Iagaru
Other
Eligibility
45 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Apr 9, 2025 · Synced Nov 3, 2026, 7:28 AM EST
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Get Quit - Stay Quit Study

NCT01980485
View directory record Official record
Conditions
Nicotine Dependent Cigarette Smoker
Interventions
Lung Age feedback and exhaled carbon monoxide, No Lung Age Feedback
Behavioral
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
21 Years and older
Enrollment
225 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
4
States / cities
Harrisburg, Pennsylvania • Hershey, Pennsylvania • Palmyra, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 26, 2019 · Synced Nov 3, 2026, 7:28 AM EST
Completed Not applicable Interventional Accepts healthy volunteers

Effects of e-Cigarettes on Nicotine Withdrawal

NCT03098004
View directory record Official record
Conditions
Electronic Cigarettes
Interventions
e-Cigarette
Other
Lead sponsor
University of Southern California
Other
Eligibility
21 Years and older
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 11, 2023 · Synced Nov 3, 2026, 7:28 AM EST
Completed No phase listed Observational

A Focus Group Study to Explore Smoking Triggers and Acceptability of Just-in-time Adaptive Intervent

NCT05231421
View directory record Official record
Conditions
Smoking, Smoking Cessation, Smoking Behaviors
Interventions
Focus Group
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 89 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 7, 2025 · Synced Nov 3, 2026, 7:28 AM EST
Completed Phase 4 Interventional Results available

Safety And Efficacy Of 12 Weeks Of Varenicline For Smoking Cessation In Smokers With Depression

NCT01078298
View directory record Official record
Conditions
Smoking Cessation, Depression
Interventions
varenicline, placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 75 Years
Enrollment
525 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
17
States / cities
Garden Grove, California • Sherman Oaks, California • Aurora, Colorado + 13 more
Source: ClinicalTrials.gov public record
Updated Apr 16, 2013 · Synced Nov 3, 2026, 7:28 AM EST
Terminated Phase 2 Interventional Accepts healthy volunteers

High Dose Bupropion for Smoking Cessation - Pilot Study

NCT03326128
View directory record Official record
Conditions
Smoking Cessation, Smoking, Tobacco, Smoking (Tobacco) Addiction, Cessation, Tobacco, Cigarette Smoking
Interventions
Bupropion Hydrochloride
Drug
Lead sponsor
University of Southern California
Other
Eligibility
21 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 17, 2023 · Synced Nov 3, 2026, 7:28 AM EST
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Sequential Use of Fluoxetine for Smokers With Elevated Depressive Symptoms

NCT00578669
View directory record Official record
Conditions
Major Depressive Disorder, Nicotine Dependence, Depression
Interventions
Fluoxetine, Dextrose
Drug
Lead sponsor
Butler Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
206 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 16, 2018 · Synced Nov 3, 2026, 7:28 AM EST
Not listed Not applicable Interventional

Mobile Smoking Treatment for Spanish-speaking Latinx Smokers

NCT04417075
View directory record Official record
Conditions
Smoking Cessation
Interventions
Impacto (Mobile App), Dejar de Fumar Asistente (Mobile App)
Behavioral
Lead sponsor
University of Houston
Other
Eligibility
18 Years to 55 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 4, 2020 · Synced Nov 3, 2026, 7:28 AM EST
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 12, 2015 · Synced Nov 3, 2026, 7:28 AM EST