Early research (Phase 1)Study completedNCT01135173What this trial is testingWaterpipe Cessation Intervention StudyWho this might be right forSmoking Cessation University of Memphis 50
Early research (Phase 1)Study completedNCT00156702What this trial is testingResearching the Youth Smoking ExperienceWho this might be right forSmoking Virginia Commonwealth University 40
Testing effectiveness (Phase 2)Study completedNCT01625637What this trial is testingTobacco Approach Avoidance Training for Adolescent Smokers-2Who this might be right forTobacco Use Disorder Yale University 66
Not applicableStudy completedNCT05458895What this trial is testingEvaluating E-Cigarette Nicotine Form, Concentration, and Flavors Among YouthWho this might be right forE-cigarette Use Ohio State University Comprehensive Cancer Center 88
Not applicableStudy completedNCT02515500What this trial is testingCigarette Reduction Using the Quitbit Digital Lighter and Mobile Application for Smoking Cessation: a Randomized Controlled TrialWho this might be right forSmoking Cessation University of California, San Francisco 124
Early research (Phase 1)Study completedNCT00864071What this trial is testingA Relative Bioavailability Study of Griseofulvin 125 mg/5 mL Suspension Under Fasting ConditionsWho this might be right forHealthy Actavis Inc. 50
Not applicableStudy completedNCT03219541What this trial is testingFeasibility and Acceptability of a Text Messaging Intervention to Increase Smoking Cessation in VietnamWho this might be right forSmoking NYU Langone Health 190
Not applicableStudy completedNCT00827866What this trial is testingEfficacy of Tobacco Quitline for Cancer SurvivorsWho this might be right forSmoking Cessation St. Jude Children's Research Hospital 946
Not applicableStudy completedNCT04534231What this trial is testingOffering Nicotine Patches to All Households in a Municipality With High Smoking RatesWho this might be right forTobacco Use Cessation Centre for Addiction and Mental Health 123
Not applicableNot Yet RecruitingNCT07274475What this trial is testingSmoking Harm Reduction Using E-cigarettes and CytisineWho this might be right forTobacco SmokingHarm ReductionNicotine Centre for Addiction and Mental Health 6,000
Not applicableStudy completedNCT03915730What this trial is testingSmoking and Peptidoglycan Recognition Protein-1 and Initial Periodontal TherapyWho this might be right forSmoking, Cigarette Kırıkkale University 80
Not applicableStudy completedNCT03885336What this trial is testingCouples Dynamics and Smoking CessationWho this might be right forSmokingSmoking CessationCessation, Smoking+2 more University of Southern California 212
Not applicableStudy completedNCT03364751What this trial is testingEffect of Switching From Cigarette Smoking to the Use of IQOS on Periodontitis Treatment OutcomeWho this might be right forPeriodontal DiseasesChronic PeriodontitisPeriodontal Pocket+3 more Philip Morris Products S.A. 179
Post-approval studies (Phase 4)Active Not RecruitingNCT04789057What this trial is testingAtorvastatin Effect on Reduction of COPD ExacerbationsWho this might be right forCopdCOPD ExacerbationSmoking+2 more Medical University of Bialystok 460
Not applicableEnded earlyNCT03276819What this trial is testingA Clinical and Biological Umbrella Protocol for Smoker or Non-smoker Patients With OPML or HNSCCWho this might be right forPremalignant LesionHead and Neck Squamous Cell Carcinoma (HNSCC) Centre Leon Berard 53
Not applicableStudy completedNCT03448900What this trial is testingIntervention Study for Smoking Cessation in Spanish College StudentsWho this might be right forSmokingSmoking Cessation Clinica Universidad de Navarra, Universidad de Navarra 255
Not applicableStudy completedNCT06534905What this trial is testingE-cigarette Switching Older AdultsWho this might be right forTobacco UseOpioid Use DisorderTobacco-Related Disorders University of Maryland, Baltimore 36
Not applicableStudy completedNCT04784702What this trial is testingSmoking Cessation in Patients After Coronary AngiographyWho this might be right forCoronary Artery Disease Centre of Postgraduate Medical Education 122
Not applicableStudy completedNCT00386945What this trial is testingTobacco Cessation Via Doctors of ChiropracticWho this might be right forTobacco Use Cessation Oregon Research Institute 201
Testing effectiveness (Phase 2)Looking for participantsNCT05121051What this trial is testingTesting the Effect of the Broccoli Seed and Sprout Extract, Avmacol ES, on the Cancer Causing Substances of Tobacco in Heavy SmokersWho this might be right forCigarette Smoking-Related Carcinoma National Cancer Institute (NCI) 135