Not applicableStudy completedNCT02069483What this trial is testingTesting Methods of Self-persuasion Involving Cigarette SmokingWho this might be right forSmoking Duke University 48
Not applicableLooking for participantsNCT03199651What this trial is testingBeating Lung Cancer in Ohio Protocol in Improving Survival in Patients With Stage IV Non-Small Cell Lung CancerWho this might be right forCigarette SmokerCurrent SmokerLung Adenocarcinoma+2 more Ohio State University Comprehensive Cancer Center 3,584
Not applicableStudy completedNCT01921439What this trial is testingOCAST Cessation StudyWho this might be right forTobacco Smoking BehaviorCigarette Smoking BehaviorSecond Hand Tobacco Smoke+1 more University of Oklahoma 152
Not applicableStudy completedNCT03593239What this trial is testingComparing the Pharmacokinetics of Nicotine Salt Based ENDS in Healthy SmokersWho this might be right forNicotine DependenceNicotine Dependence, CigarettesTobacco Use+1 more Juul Labs, Inc. 24
Not applicableStudy completedNCT01721473What this trial is testingBrain Nicotine Receptor Density in Veteran SmokersWho this might be right forPositron Emission Tomography VA Office of Research and Development 184
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
Early research (Phase 1)Study completedNCT03559751What this trial is testingEvaluation of the Abuse Liability of Very Low Nicotine (VLN) CigarettesWho this might be right forTobacco Use 22nd Century Group, Inc. 66
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
Not applicableUnknownNCT04417075What this trial is testingMobile Smoking Treatment for Spanish-speaking Latinx SmokersWho this might be right forSmoking Cessation University of Houston 38
Not applicableStudy completedNCT07764549What this trial is testingSalivary TNF-α, FoxO-1, and SIRT-1 Levels in Periodontitis and SmokingWho this might be right forPeriodontitis (Stage 3)Smoking ( Cigarette) Zehra Hasgül 80
Post-approval studies (Phase 4)WithdrawnNCT02488889What this trial is testingEffects of Varenicline in Heavy Drinking SmokersWho this might be right forCigarette SmokingAlcohol Consumption University of California, Los Angeles
Not applicableLooking for participantsNCT04163081What this trial is testingThe INITIATE Study: Initiating Nicotine Dependence Treatment for Smokers Admitted to Emergency DepartmentsWho this might be right forNicotine Dependence, CigarettesNicotine Withdrawal Ottawa Heart Institute Research Corporation 1,208
Not applicableEnded earlyNCT02986711What this trial is testingPenn State TXT2STAYQUIT Study- a Texting Study to Help Hospitalized Smokers Stay QuitWho this might be right forNicotine Dependence, Cigarettes Milton S. Hershey Medical Center 158
Early research (Phase 1)Study completedNCT01337830What this trial is testingPilot Study to Evaluate the Safety and Efficacy of Ariva® Silver Wintergreen in Reducing Cigarette Craving in SmokersWho this might be right forTobacco Use DisorderSmoking Star Scientific, Inc 111
Not applicableStudy completedNCT05023096What this trial is testingPotential Effects of Electronic Nicotine Delivery System Flavor Regulations on African American Menthol SmokersWho this might be right forElectronic Nicotine Delivery System Flavors Virginia Commonwealth University 71
Not applicableStudy completedNCT04461288What this trial is testingEngaging Sexual and Gender Minority Cigarette Smokers Into Social Media-based TreatmentWho this might be right forSmoking CessationNicotine DependenceTobacco Use+1 more University of California, San Francisco 121
Testing effectiveness (Phase 2)Study completedNCT01199380What this trial is testingBehavioral Activation Intervention for Smoking Cessation in Smokers With Depressive SymptomsWho this might be right forCigarette Smoking University of Maryland, College Park 184
Not applicableStudy completedNCT02922790What this trial is testingFeasibility and Smokers' Reactions to DNA FeedbackWho this might be right forSmoking Duke University 39
Not applicableStudy completedNCT03028558What this trial is testingBiology of the Oral Epithelium of E-Cigarette SmokersWho this might be right forHealthy Weill Medical College of Cornell University 105
Not applicableWithdrawnNCT02974582What this trial is testingUnderstanding How Cigarette Direct Mail Marketing Influences Smoking Behaviors Among High and Low Socioeconomic Status Young Adult SmokersWho this might be right forNicotine Dependence National Institute on Minority Health and Health Disparities (NIMHD)