Testing effectiveness (Phase 2)Looking for participantsNCT04662658What this trial is testingHyperpolarized Xenon-129 MR Imaging of the LungWho this might be right forE-Cig Use University of Virginia 24
Not applicableStudy completedNCT04879225What this trial is testingMenthol and Mint Experimental Tobacco Marketplace (ETM) StudyWho this might be right forCigarette SmokingVaping Wake Forest University Health Sciences 66
Not applicableStudy completedNCT05110716What this trial is testingEffects of Choice Bundling on Valuation of Delayed Gains and Losses in Cigarette SmokersWho this might be right forCigarette Smoking Virginia Polytechnic Institute and State University 308
Not applicableStudy completedNCT01260233What this trial is testingEffect of a Perioperative Smoking Cessation Program on Smoking Cessation/Reduction and Perioperative ComplicationsWho this might be right forSmokingTobacco Use London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's 168
Not applicableStudy completedNCT05430334What this trial is testingAssess the Influence of Nicotine Flux and Nicotine Form on Subjective Effects Related to DependencyWho this might be right forNicotine VapingNicotine DependenceNicotine Addiction American University of Beirut Medical Center 142
Not applicableUnknownNCT06177158What this trial is testingEfficacy of Oral Hygiene Instructions on Proinflammatory Cytokines Among Cigarette Smokers and Individuals Vaping Electronic Cigarettes During Plaque Induced Gingivitis (Clinical Trial)Who this might be right forElectronic Cigarette UsePlaque Induced Gingivitis University of Baghdad 39
Testing effectiveness (Phase 2)Study completedNCT00683033What this trial is testingContingency Management for Smoking in Substance AbusersWho this might be right forCigarette Smoking UConn Health 51
Early research (Phase 1)Active Not RecruitingNCT07476144What this trial is testingNicotine Pouch Pharmacokinetics Abuse LiabilityWho this might be right forSmoking Behaviors JT International SA 55
Not applicableStudy completedNCT05032755What this trial is testingLow Nicotine Cigarettes, Smoking, and Chronic PainWho this might be right forChronic PainSmoking, Cigarette Duke University 40
Not applicableStudy completedNCT00816036What this trial is testingImproving the Delivery of Smoking Cessation Guidelines in Hospitalized VeteransWho this might be right forCigarette Smoking US Department of Veterans Affairs 898
Not applicableStudy completedNCT01970995What this trial is testingReduced Exposure Study Using THS 2.2 Menthol With 5 Days in a Confinement Setting and 85 Days in an Ambulatory SettingWho this might be right forSmoking Philip Morris Products S.A. 160
Early research (Phase 1)Looking for participantsNCT06609109What this trial is testingEffect of Cannabis on E-Cigarette Use BehaviorWho this might be right forCannabis UseTobacco UseElectronic Cigarette Use Johns Hopkins University 100
Not applicableStudy completedNCT01842828What this trial is testingUK-Czech E-cigarette StudyWho this might be right forSmoking Cessation Queen Mary University of London 199
Not applicableStudy completedNCT00957463What this trial is testingEffects of Obstructive Sleep Apnea and/or Cigarette Smoking on Endothelial FunctionWho this might be right forObstructive Sleep ApneaSmoking The University of Hong Kong 150
Not applicableStudy completedNCT01714323What this trial is testingComparative Effectiveness of Post-Discharge Strategies for Hospitalized SmokersWho this might be right forCigarette SmokingTobacco SmokingTobacco Use Disorder Massachusetts General Hospital 1,359
Very early researchLooking for participantsNCT06816459What this trial is testingSensory Tests of Cigarettes for Identification of Flavors in Current Daily Smoking AdultsWho this might be right forCigarette Smoking-Related Carcinoma Roswell Park Cancer Institute 30
Large-scale testing (Phase 3)Study completedNCT01406223What this trial is testingMechanistic Evaluations of Pre-Cessation Therapies for Smoking CessationWho this might be right forNicotine Dependence Duke University 282
Not applicableStudy completedNCT03837379What this trial is testingGoal2Quit + NRT SamplingWho this might be right forCigarette SmokingSmoking CessationDepression Medical University of South Carolina 164
Not applicableStudy completedNCT01454362What this trial is testingEffect of the Electronic Cigarette on Withdrawal SymptomsWho this might be right forMental and Behavioral DisordersWithdrawal State Queen Mary University of London 51
Not applicableEnded earlyNCT04282694What this trial is testingPRogetto Salute ParmaWho this might be right forSmokingSmoking HabitSmoking, Tobacco+3 more University of Parma 9