Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Jul 22, 2026, 6:20 PM EDT

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

Showing 1–24 of 87 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Former Smoker Clear all
Completed Not applicable Interventional Results available

Pain and Smoking Study

NCT02971137
View directory record Official record
Conditions
Smoking, Pain, Smoking Cessation
Interventions
Smoking Cessation plus CBI, Smoking Cessation Standard
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
371 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
2
States / cities
West Haven, Connecticut • Leeds, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 27, 2023 · Synced Jul 22, 2026, 6:20 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study To Evaluate Cardiac Assessments Following Different Treatments Of Smoking Cessation Medications In Subjects With And Without Psychiatric Disorders.

NCT01574703
View directory record Official record
Conditions
Smoking Cessation
Interventions
placebo, varenicline tartrate, bupropion hydrochloride, Nicotine Replacement Therapy Patch
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 75 Years
Enrollment
4,595 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
65
States / cities
Mobile, Alabama • Encino, California • Escondido, California + 54 more
Source: ClinicalTrials.gov public record
Updated Dec 28, 2016 · Synced Jul 22, 2026, 6:20 PM EDT
Completed Phase 3 Interventional

A 52-Week Multicenter Study Evaluating the Safety and Efficacy of Varenicline for the Maintenance of Smoking Cessation

NCT00143286
View directory record Official record
Conditions
Smoking Cessation
Interventions
varenicline (CP-526,555)
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 75 Years
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
6
States / cities
Santa Ana, California • West Palm Beach, Florida • Lexington, Kentucky + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2007 · Synced Jul 22, 2026, 6:20 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Phase I/II Study of Chemoprevention With EGFR and COX-2 Inhibitor

NCT00314262
View directory record Official record
Conditions
Precancerous Conditions
Interventions
Erlotinib & Celecoxib
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 65 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 23, 2014 · Synced Jul 22, 2026, 6:20 PM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

Smoking Cessation Intervention During Low Dose CT (LDCT) Screening for Lung Cancer

NCT03059940
View directory record Official record
Conditions
Smoking Cessation
Interventions
Questionnaires, Low Dose Computed Tomography Scan, Shared Decision Making + Video, Cessation Counseling, Quitline, Pharmacotherapy Discussion, Nicotine Patch, Anti-Smoking Drug, Tobacco Treatment Program, Carbon Monoxide (CO) Level Test
Behavioral · Procedure · Other + 1 more
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
50 Years and older
Enrollment
630 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Jul 22, 2026, 6:20 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

EQQUAL-NM for the Promotion of Smoking Cessation in Sexual and Gender Minority Young Adults in New Mexico

NCT06386432
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Smartphone App-delivered Smoking Cessation Intervention, Health Promotion and Education, Biospecimen Collection, Questionnaire Administration
Behavioral · Other
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years to 30 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced Jul 22, 2026, 6:20 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Smartphone Application Smoking Cessation Study

NCT04623736
View directory record Official record
Conditions
Tobacco Use
Interventions
quitSTART
Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
152 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 9, 2021 · Synced Jul 22, 2026, 6:20 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Quit Smoking Study for People Who Use E-Cigarettes

NCT04946825
View directory record Official record
Conditions
Nicotine Addiction, E-Cig Use, Quitting Smoking
Interventions
Nicotine replacement therapy patch, Nicotine replacement therapy lozenge, Quit electronic cigarettes, Continue electronic cigarettes
Drug · Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 29 Years
Enrollment
396 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated May 21, 2025 · Synced Jul 22, 2026, 6:20 PM EDT
Completed No phase listed Observational

Vanguard Study for Head and Neck Cancer or Non-Small Cell Lung Cancer (NSCLC) Patients

NCT00352391
View directory record Official record
Conditions
Head and Neck Cancer, Lung Cancer
Interventions
Assessments
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2016
U.S. locations
3
States / cities
Fort Gordon, Georgia • Johnstown, Pennsylvania • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 2, 2016 · Synced Jul 22, 2026, 6:20 PM 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 Jul 22, 2026, 6:20 PM EDT
Completed Not applicable Interventional Results available

Incentive-based and Media Literacy Informed Approaches to Improve Vaping Cessation

NCT05586308
View directory record Official record
Conditions
Behavior, Health Risk, Implementation Science, E Cigarette Use, Cessation, Smoking, Incentives, Engagement, Patient, Peer Support, Media Literacy
Interventions
Text-massaging suport, Financial incentive, Media literacy
Behavioral
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years to 29 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Jul 22, 2026, 6:20 PM EDT
Completed Phase 1 Interventional

Smoking Cessation and Sexual Health in Men

NCT00833404
View directory record Official record
Conditions
Smoking Cessation
Interventions
Nicotine transdermal patch
Drug
Lead sponsor
University of Texas at Austin
Other
Eligibility
23 Years to 60 Years · Male only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Sep 11, 2011 · Synced Jul 22, 2026, 6:20 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Natural History of Gene Expression in the Lung Cells of Non-Smokers, Smokers and Ex-Smokers in Health and Disease

NCT00974064
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD), Smoking, Smoking Cessation, Chronic Bronchitis, Emphysema
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
171 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 26, 2020 · Synced Jul 22, 2026, 6:20 PM EDT
Active, not recruiting Phase 3 Interventional

Optimizing Tobacco Use Treatment for PLWHA

NCT04176172
View directory record Official record
Conditions
HIV/AIDS, Nicotine Dependence
Interventions
Varenicline, Nicotine patch, Standard treatment, Standard treatment + Managed Problem Solving (MAPS) adherence intervention
Drug · Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
340 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
2
States / cities
Chicago, Illinois • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Jul 22, 2026, 6:20 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

A Smoking Cessation Study to Understand the Biological and Functional Changes After One Year of Smoking Cessation

NCT02432729
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Not listed
Lead sponsor
Philip Morris Products S.A.
Industry
Eligibility
30 Years to 65 Years
Enrollment
1,184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 29, 2023 · Synced Jul 22, 2026, 6:20 PM EDT
Completed Phase 3 Interventional

Efficacy and Safety of Rimonabant as an Aid to Maintenance of Smoking Cessation

NCT00459173
View directory record Official record
Conditions
Maintenance of Smoking Cessation
Interventions
rimonabant (SR141716)
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
4,850 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 6, 2009 · Synced Jul 22, 2026, 6:20 PM EDT
Completed Phase 2 Interventional Results available

Inositol in Preventing Lung Cancer in Current or Former Smokers With Bronchial Dysplasia

NCT00783705
View directory record Official record
Conditions
Non-small Cell Lung Cancer, Squamous Lung Dysplasia
Interventions
placebo, inositol
Other · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
45 Years to 79 Years
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
3
States / cities
Scottsdale, Arizona • Rochester, Minnesota • Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Dec 4, 2017 · Synced Jul 22, 2026, 6:20 PM 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 Jun 11, 2026 · Synced Jul 22, 2026, 6:20 PM 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 Jul 22, 2026, 6:20 PM EDT
Completed Phase 2 Interventional

Celecoxib in Preventing Lung Cancer in Former Heavy Smokers

NCT00055978
View directory record Official record
Conditions
Lung Cancer
Interventions
celecoxib, placebo
Drug · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
45 Years and older
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2009
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 19, 2011 · Synced Jul 22, 2026, 6:20 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Study of Chokeberry to Reduce Cardiovascular Disease Risk in Former Smokers

NCT01541826
View directory record Official record
Conditions
Cardiovascular Disease, Oxidative Stress
Interventions
Chokeberry Extract, Placebo capsule, Chokeberry extract capsule, acute
Dietary Supplement
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years to 65 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 10, 2017 · Synced Jul 22, 2026, 6:20 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Jail-Based Use of Smoking Cessation Treatment Study

NCT03799315
View directory record Official record
Conditions
Tobacco Use
Interventions
Nicotine Replacement Therapy, Counseling
Drug · Behavioral
Lead sponsor
Hennepin Healthcare Research Institute
Other
Eligibility
18 Years to 64 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 13, 2020 · Synced Jul 22, 2026, 6:20 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Testing Different Theories of Smoking Cessation: An Intervention Study

NCT01209897
View directory record Official record
Conditions
Smoking Cessation
Interventions
Smoking cessation booklet
Behavioral
Lead sponsor
University of Hawaii
Other
Eligibility
18 Years and older
Enrollment
1,826 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Honolulu, Hawaii
Source: ClinicalTrials.gov public record
Updated May 13, 2024 · Synced Jul 22, 2026, 6:20 PM EDT
Withdrawn Not applicable Interventional

Incentives for Participation Versus Outcomes

NCT01826331
View directory record Official record
Conditions
Smoking
Interventions
Incentives for Participation, Incentives for Cessation
Behavioral
Lead sponsor
University of Rhode Island
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Kingston, Rhode Island
Source: ClinicalTrials.gov public record
Updated Apr 16, 2025 · Synced Jul 22, 2026, 6:20 PM EDT