Search | Clinical Trials Finder

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 15, 2026, 7:28 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 193–216 of 798 matching trials from the live ClinicalTrials.gov search.

Filters: Condition: Smoking Cigarette Clear all

Conditions: Cigarette Smoking
Interventions: NIDA Standard Research E-cigarette (SREC); Device
Lead sponsor: University of Southern California; Other
Eligibility: 22 Years to 55 Years
Enrollment: 150 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2021 – 2028
U.S. locations: 1
States / cities: Los Angeles, California

Conditions: Cigarette Smoking, Tobacco Smoking
Interventions: Motivational Interviewing/CBT, CONcise Tapes Reviewing Obstacles to healthy Living (CONTROL); Behavioral · Other
Lead sponsor: Memorial Hospital of Rhode Island; Other
Eligibility: 18 Years and older
Enrollment: 350 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2010 – 2011
U.S. locations: 1
States / cities: Pawtucket, Rhode Island

Conditions: Cigarette Smoking
Interventions: Reat ETM, Hypothetical ETM; Drug
Lead sponsor: Virginia Polytechnic Institute and State University; Other
Eligibility: 21 Years and older
Enrollment: 87 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2025
U.S. locations: 1
States / cities: Roanoke, Virginia

Conditions: Cervical Dysplasia
Interventions: Nicotine Replacement Therapy, Electronic Cigarettes; Other · Device
Lead sponsor: University of Oklahoma; Other
Eligibility: 18 Years to 65 Years · Female only
Enrollment: 31 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2013 – 2017
U.S. locations: 1
States / cities: Oklahoma City, Oklahoma

Conditions: Cigarette Smoking
Interventions: Ask-Advise-Refer, Nicotine Patch, 14 Mg/24 Hr Transdermal Film, Extended Release, Nicotine lozenge; Behavioral · Drug
Lead sponsor: Sandra Japuntich; Other
Eligibility: 18 Years and older
Enrollment: 1,239 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2023 – 2025
U.S. locations: 1
States / cities: Minneapolis, Minnesota

Conditions: Electronic Cigarette Use, Cigarette Smoking, Cigarette Use, Electronic, Vaping
Interventions: E-cigarette; Other
Lead sponsor: University of Southern California; Other
Eligibility: 21 Years and older
Enrollment: 461 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2020 – 2022
U.S. locations: 1
States / cities: Los Angeles, California

Conditions: Airway Morbidity, Smoking Cessation, Nicotine Adverse Reaction, Smoking, Tobacco, Smoking, Cigarette
Interventions: Electronic cigarette use, Control regular cigarette smokers; Device · Other
Lead sponsor: Miami VA Healthcare System; Federal
Eligibility: 18 Years and older
Enrollment: 200 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2016 – 2021
U.S. locations: 1
States / cities: Miami, Florida

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

Conditions: Nicotine Addiction, Cigarette Smoking
Interventions: Smoking research cigarettes with e-cigarette, Nicotine discrimination thresholds; Drug
Lead sponsor: Rose Research Center, LLC; Industry
Eligibility: 21 Years to 65 Years
Enrollment: 150 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2019 – 2021
U.S. locations: 2
States / cities: Charlotte, North Carolina • Raleigh, North Carolina

Conditions: Electronic Cigarettes
Interventions: ECIG Lab Session 15 watts, 10 mg nicotine, ECIG Lab Session 15 watts, 15 mg nicotine, ECIG Lab Session 15 watts, 30 mg nicotine, ECIG Lab Session 30 watts, 10 mg nicotine, ECIG Lab Session 30 watts, 15 mg nicotine, ECIG Lab Session 30 watts, 30 mg nicotine; Other
Lead sponsor: Virginia Commonwealth University; Other
Eligibility: 18 Years to 55 Years
Enrollment: 45 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2019 – 2020
U.S. locations: 1
States / cities: Richmond, Virginia

Conditions: Smoking, Cigarette, Craving, Addiction, Nicotine
Interventions: Real cTBS, Sham cTBS, Real iTBS, Sham iTBS; Device
Lead sponsor: Medical University of South Carolina; Other
Eligibility: 18 Years to 70 Years
Enrollment: 25 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2018 – 2019
U.S. locations: 1
States / cities: Charleston, South Carolina

Conditions: Smoking Cessation
Interventions: Very Low Nicotine Content (VLNC) Cigarettes, One on One Counseling; Drug · Behavioral
Lead sponsor: H. Lee Moffitt Cancer Center and Research Institute; Other
Eligibility: 18 Years and older
Enrollment: 163 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2017 – 2021
U.S. locations: 1
States / cities: Tampa, Florida

Conditions: Cigarette Smoking, Nicotine Vaping
Interventions: Promotion factors, Mitigation strategies; Behavioral
Lead sponsor: Virginia Polytechnic Institute and State University; Other
Eligibility: 21 Years and older
Enrollment: 65 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2025
U.S. locations: 1
States / cities: Roanoke, Virginia

Conditions: Tobacco Dependence
Interventions: Standard brief advice, Quitline intervention; Behavioral
Lead sponsor: Mayo Clinic; Other
Eligibility: 18 Years and older
Enrollment: 300 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2007 – 2011
U.S. locations: 1
States / cities: Rochester, Minnesota

Conditions: Smoking
Interventions: Minimally Ventilated non-menthol cigarettes, Ventilated non-menthol cigarettes; Other
Lead sponsor: Masonic Cancer Center, University of Minnesota; Other
Eligibility: 21 Years and older
Enrollment: 46 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2025
U.S. locations: 1
States / cities: Minneapolis, Minnesota

Conditions: Electronic Cigarette Use
Interventions: RELX ENDS Tobacco Flavor, RELX ENDS Menthol Flavor, Subject Usual Brand ENDS; Other
Lead sponsor: Cheerain HK Limited; Industry
Eligibility: 22 Years to 59 Years
Enrollment: 29 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2020 – 2021
U.S. locations: 2
States / cities: Cypress, California • Overland Park, Kansas

Conditions: Cigarette Smoking
Interventions: Best practices, financial incentives; Behavioral
Lead sponsor: University of Vermont; Other
Eligibility: 18 Years and older · Female only
Enrollment: 257 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2014 – 2020
U.S. locations: 1
States / cities: Burlington, Vermont

Conditions: Smoking
Interventions: Not listed
Lead sponsor: National Institute on Minority Health and Health Disparities (NIMHD); NIH
Eligibility: 21 Years to 120 Years
Enrollment: 30 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2026 – 2028
U.S. locations: 1
States / cities: Kansas City, Kansas

Conditions: E-cigarette Use
Interventions: ECIG lab session 1, ECIG lab session 2, ECIG lab session 3, ECIG lab session 4, ECIG lab session 5, ECIG lab session 6, ECIG lab session 7, ECIG lab session 8; Other
Lead sponsor: Ohio State University Comprehensive Cancer Center; Other
Eligibility: 21 Years to 25 Years
Enrollment: 88 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2021 – 2023
U.S. locations: 1
States / cities: Columbus, Ohio

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

Conditions: Cigarette Smoker, Current Every Day Smoker, Current Smoker
Interventions: Questionnaire Administration, Repetitive Transcranial Magnetic Stimulation, Sham Intervention; Other · Procedure
Lead sponsor: Roswell Park Cancer Institute; Other
Eligibility: 18 Years and older
Enrollment: 206 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2018 – 2026
U.S. locations: 1
States / cities: Buffalo, New York

Conditions: Lung Cancer
Interventions: Not listed
Lead sponsor: Masonic Cancer Center, University of Minnesota; Other
Eligibility: 21 Years to 65 Years
Enrollment: 161 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2010 – 2017
U.S. locations: 1
States / cities: Minneapolis, Minnesota

Conditions: Smoking, Cigarette
Interventions: Standardized Research E-cigarette (SREC); Drug
Lead sponsor: Masonic Cancer Center, University of Minnesota; Other
Eligibility: 18 Years to 65 Years
Enrollment: 47 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2022 – 2026
U.S. locations: 1
States / cities: Minneapolis, Minnesota

Conditions: Cigarette Smoking-Related Carcinoma, E-Cig Use
Interventions: Effectiveness of different recruitment approaches, Choice of study completion locations, Cannabis Engagement Assessment, E-cigarette dependence Scale, Nicotine dependence Scale, Co use practices QUestionnaire; Other
Lead sponsor: Roswell Park Cancer Institute; Other
Eligibility: 18 Years to 25 Years
Enrollment: 150 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2025 – 2028
U.S. locations: 1
States / cities: Buffalo, New York

Search by objective public record fields.

Are Smokers Switching to Vaping at Lower Risk for Cancer? (Electronic Cigarettes and Cancer Risk)

Working Inside for Smoking Elimination

Testing the ETM: Examination and Comparison of Different Methods

Smoking Cessation in Women With Gynecological Conditions

Free Samples for Health

Effects of e-Cigarettes on Perceptions and Behavior - Remote Substudy # 2

Adverse Airway Effects From Tobacco and E-Cigarettes

High Dose Bupropion for Smoking Cessation - Pilot Study

Abuse Liability of Reduced Nicotine Content Cigarettes in the Context of Concurrent E-Cigarette Use

Effects of Electronic Cigarette Settings and Liquid Concentrations in Cigarette Smokers and Electronic Cigarette Users

QuitFast: Evaluating Transcranial Magnetic Stimulation as a Tool to Reduce Smoking Directly Following a Quit Attempt

Facilitating Smoking Cessation With Reduced Nicotine Cigarettes

Promotion and Mitigation Factors Leading to Illegal Tobacco Purchases

Quitline Use in Surgical Patients

Feasibility of Conducting a Pilot Telehealth Study Assessing the Removal of Filter Ventilation on Smoking Behavior and Biomarkers in Menthol Smokers Switched to Non-menthol Cigarettes

Nicotine Uptake, Measures of Abuse Liability, and Puffing Topography With Use of RELX ENDS Products by ENDS Consumers

Financial Incentives for Smoking Cessation Among Disadvantaged Pregnant Women

Using Smartwatches to Monitor Smoking in Real-life Situations

Evaluating E-Cigarette Nicotine Form, Concentration, and Flavors Among Youth

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

rTMS in Promoting Smoking Cessation and Preventing Relapse in Current Smokers

Metabolism of NNK Among African Americans

Biomarkers of Exposure and Effect in Standardized Research E-cigarette (SREC) Users

Carcinogen and Toxicant Exposure Among Young Adults Who Co-Use Cigarettes, E-cigarettes and Cannabis (Co-Tox Study)