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ClinicalTrials.gov public records Last synced May 22, 2026, 4:57 AM 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.
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Filters: Condition: Former Smoker Clear all
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
HIV Infections, Smoking, Smoking Cessation
Interventions
Wellness Intervention for Smokers with HIV
Behavioral
Lead sponsor
Seattle Institute for Biomedical and Clinical Research
Other
Eligibility
18 Years and older
Enrollment
234 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced May 22, 2026, 4:57 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Nicotine Addiction, Drug Addiction, Drug Dependence, Substance Use Disorder, Tobacco Dependence
Interventions
Mobile Smoking Cessation Solution
Device
Lead sponsor
Click Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
416 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 13, 2018 · Synced May 22, 2026, 4:57 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available
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 May 22, 2026, 4:57 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Smoking, Prevention
Interventions
Celecoxib, Placebo
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years to 74 Years
Enrollment
219 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2009
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 31, 2012 · Synced May 22, 2026, 4:57 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Lung Cancer
Interventions
Enzastaurin, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
45 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 20, 2020 · Synced May 22, 2026, 4:57 AM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Lung Cancer
Interventions
sorafenib
Drug
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 5, 2019 · Synced May 22, 2026, 4:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Tobacco Use Cessation
Interventions
proactive outreach (PRO), telephone counseling (TC), Nicotine replacement therapy (NRT), Usual care (UC)
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 64 Years
Enrollment
2,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 26, 2015 · Synced May 22, 2026, 4:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
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 May 22, 2026, 4:57 AM EDT
Completed Not applicable Interventional Results available
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 May 22, 2026, 4:57 AM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers
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 May 22, 2026, 4:57 AM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Lung Cancer, Head and Neck Cancer
Interventions
High Intensity Counseling + Long Acting NRT + PRN NRT, High Intensity Counseling + bupropion + PRN NRT, High Intensity Counseling + varenicline + PRN NRT, High Intensity Counseling + Long Acting NRT, High Intensity Counseling + bupropion, High Intensity Counseling + varenicline, Low Intensity Counseling + Long Acting NRT + PRN NRT, Low Intensity Counseling + bupropion + PRN NRT, Low Intensity Counseling + varenicline + PRN NRT, Low Intensity Counseling + Long Acting NRT, Low Intensity Counseling + bupropion, Low Intensity Counseling + varenicline
Drug
Lead sponsor
University of Kentucky
Other
Eligibility
18 Years and older
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
10
States / cities
Ashland, Kentucky • Elizabethtown, Kentucky • Hazard, Kentucky + 5 more
Source: ClinicalTrials.gov public record
Updated Jan 28, 2020 · Synced May 22, 2026, 4:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Smoking Cessation Intervention (New website), Smoking Cessation Intervention (Standard of care website), Health Education, Health Promotion and Education, Questionnaire Administration
Behavioral · Other
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Bedford, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 6, 2023 · Synced May 22, 2026, 4:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Cigarette Smoking
Interventions
Smoking cessation guideline implementation
Behavioral
Lead sponsor
University of Iowa
Other
Eligibility
18 Years and older
Enrollment
789 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
2
States / cities
Des Moines, Iowa • Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Nov 3, 2011 · Synced May 22, 2026, 4:57 AM EDT
Completed Phase 3 Interventional
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 May 22, 2026, 4:57 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Bladder Cancer
Interventions
Polyphenon E, erlotinib hydrochloride, Erlotinib placebo, Polyphenon E
Dietary Supplement · Drug · Other
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
5
States / cities
Phoenix, Arizona • Los Angeles, California • Santa Monica, California + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2020 · Synced May 22, 2026, 4:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Smoking Cessation
Interventions
Nicotine Replacement Therapy (NRT), Questionnaire, Counseling, Self-Help Materials
Drug · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years to 65 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 18, 2020 · Synced May 22, 2026, 4:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Use and Dissemination of Smoking Cessation Intervention, Cessation of Smoking
Interventions
Facebook app - condition t, Facebook app - condition z, Facebook app - condition B-active, Facebook app - condition B-passive
Behavioral
Lead sponsor
Truth Initiative
Other
Eligibility
18 Years and older
Enrollment
11,413 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Mar 14, 2016 · Synced May 22, 2026, 4:57 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Cancer and Tobacco Abuse
Interventions
Bupropion and intensive behavioral therapy
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 30, 2007 · Synced May 22, 2026, 4:57 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available
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 May 22, 2026, 4:57 AM EDT
Recruiting Phase 1 Interventional
View directory record Official record
Conditions
Smokers, Former Smokers
Interventions
lamivudine, rapamycin, Exercise Regimen, Spermidine
Drug · Behavioral · Dietary Supplement
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
65 Years to 80 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 24, 2025 · Synced May 22, 2026, 4:57 AM EDT
Completed No phase listed Observational
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 May 22, 2026, 4:57 AM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Smoking Cessation, Pregnancy
Interventions
Text Messages, Incentives
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced May 22, 2026, 4:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
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 May 22, 2026, 4:57 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Tobacco Use Cessation, Sleep Disorders
Interventions
Bupropion, Transdermal Nicotine Patch, Placebo Bupropion, Placebo transdermal nicotine patch
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 65 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
1
States / cities
Menlo Park, California
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced May 22, 2026, 4:57 AM EDT