Independent directory Public ClinicalTrials.gov records United States
Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Nov 6, 2026, 6:52 AM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Showing 289–312 of 797 matching trials from the live ClinicalTrials.gov search.
Conditions
Cigarette Smoking
Interventions
Low-nitrosamine smokefree tobacco product for oral use, Non-tobacco, non-nicotine placebo product
Drug · Other
Lead sponsor
Swedish Match AB
Industry
Eligibility
25 Years to 65 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
4
States / cities
Daytona Beach, Florida • Evansville, Indiana • Portland, Oregon + 1 more
Conditions
Chronic Pain, Smoking, Smoking Cessation
Interventions
Tailored intervention, Ask-Advise-Refer
Behavioral
Lead sponsor
Syracuse University
Other
Eligibility
18 Years and older
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Syracuse, New York
Conditions
Nicotine Use Disorder
Interventions
Active 10-Hz TMS to the DLPFC, Sham TMS-DLPFC
Device
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 55 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Newark, New Jersey
Conditions
Smoking, Tobacco Use, Tobacco Smoking
Interventions
40007388, 40007385, 40007387, 40007386
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
1,180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
10
States / cities
Atlanta, Georgia • Chicago, Illinois • Baltimore, Maryland + 7 more
Conditions
Lung Cancer
Interventions
Not listed
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
18 Years to 55 Years
Enrollment
757 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Substance Related Disorder, Nicotine Dependence
Interventions
Nicotine
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 50 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Baltimore, Maryland
Completed Not applicable Interventional Accepts healthy volunteers

Brief Computerized Feedback for Smokers in Recovery

NCT01325727
Conditions
Smoking
Interventions
Brief computerized feedback, Resources only (control)
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
151 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Midlothian, Virginia
Conditions
Tobacco Use
Interventions
Graphic cigarette warning labels, plain packaging
Behavioral
Lead sponsor
Georgetown University
Other
Eligibility
18 Years to 30 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Recruiting Phase 3 Interventional Accepts healthy volunteers

Switching to E-cigarettes in Smokers Not Interested in Quitting

NCT05703672
Conditions
Smoking Reduction
Interventions
Varenicline Tartrate, Placebo, Electronic cigarette
Drug · Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
21 Years and older
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
2
States / cities
Kansas City, Missouri
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Feasibility of Cell-Free DNA Liquid Biopsy in Screening High-Risk Patients for Lung Cancer

NCT05384769
Conditions
Lung Carcinoma
Interventions
Liquid Biopsy, Low Dose Computed Tomography of the Chest, Survey Administration
Procedure · Other
Lead sponsor
City of Hope Medical Center
Other
Eligibility
50 Years to 80 Years
Enrollment
108 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Duarte, California
Conditions
Smoking Cessation, Overweight, Obesity
Interventions
Nicotine patch
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
Smoking
Interventions
Telephone counseling, Self-help materials
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
1,173 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2004
U.S. locations
1
States / cities
San Diego, California
Conditions
Pelvic Organ Prolapse
Interventions
Blood draw for the study participants
Other
Lead sponsor
TriHealth Inc.
Other
Eligibility
18 Years and older · Female only
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Cincinnati, Ohio
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
Completed Not applicable Interventional Accepts healthy volunteers Results available

Testing Financial Incentive Interventions in Dyadic-Smoker Couples

NCT04832360
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
Completed Not applicable Interventional Results available

Promoting Oral Health Among Smokers Randomized Trial

NCT02347124
Conditions
Oral Disease, Smoking
Interventions
Usual Care Control, Enhanced Intervention
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
718 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Seattle, Washington
Conditions
Tobacco Use Disorder
Interventions
Behavior Therapy
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
40 Years to 79 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2003
U.S. locations
1
States / cities
Minneapolis, Minnesota
Completed No phase listed Observational Accepts healthy volunteers

Memory and Picture Viewing Study

NCT00736203
Conditions
Healthy, Brain Reactivity of Non-smokers Undergoing fMRI Scanning
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
18 Years to 55 Years
Enrollment
116 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Durham, North Carolina
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Imaging Regional Lung Defect Severity

NCT01640288
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
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Cessation Screening Project

NCT04188873
Conditions
Nicotine Dependence
Interventions
Preparation Varenicline and Standard Duration Varenicline, Preparation Varenicline and Extended Duration Varenicline, Standard Duration Varenicline, Extended Duration Varenicline, Preparation Combination NRT and Standard Duration Combination NRT, Preparation Combination NRT and Extended Duration Combination NRT, Standard Duration Combination NRT, Extended Duration Combination NRT, Intensive Counseling, Minimal Counseling
Drug · Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
538 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
2
States / cities
Madison, Wisconsin • Milwaukee, Wisconsin
Conditions
Smoking, Tobacco Use, Cigarette Smoking, E-Cig Use
Interventions
E-cigarettes
Other
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
21 Years and older
Enrollment
210 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
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
Conditions
Tobacco Use
Interventions
Ploom HTP Menthol HTS; MX3 (681), Ploom HTP Tobacco HTS; R8 (120), Smoking Abstinence (menthol), Smoking Abstinence (non-menthol)
Other
Lead sponsor
Altria Client Services LLC
Industry
Eligibility
22 Years to 65 Years
Enrollment
921 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
8
States / cities
Bentonville, Arkansas • Rogers, Arkansas • Overland Park, Kansas + 5 more
Conditions
Alcoholism, Nicotine Dependence
Interventions
Varenicline
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Rochester, Minnesota