Not applicableStudy completedNCT02825459What this trial is testingDoes Abstinence From E-cigarettes Produce Withdrawal Symptoms?Who this might be right forSubstance Withdrawal Syndrome University of Vermont 147
Not applicableWithdrawnNCT04179617What this trial is testingImpact of New Product Standards for JUUL Among Dual JUUL/Combusted Cigarette UsersWho this might be right forSmokingE-cigarette UseCigarette Smoking Duke University
Not applicableStudy completedNCT03742700What this trial is testingAcute Health Effects of Short-term Use of E-cigarettes on Pulmonary and Cardiovascular SystemWho this might be right forE-cigarette Medical University of Silesia 120
Not applicableStudy completedNCT02357173What this trial is testingA Trial of E-cigarettes in Current Cigarette SmokersWho this might be right forSmokingNicotine DependenceNicotine Dependence, Other Tobacco Product Medical University of South Carolina 68
Not applicableStudy completedNCT03861078What this trial is testingThe Effect of Electronic Cigarette Liquid Characteristics in Smokers.Who this might be right forElectronic Cigarettes Virginia Commonwealth University 22
Early research (Phase 1)Looking for participantsNCT05962229What this trial is testingComparative Pharmacokinetics and Pharmacodynamics of Synthetic NicotineWho this might be right forNicotine DependenceNicotine Vaping University of California, San Francisco 18
Not applicableStudy completedNCT05105555What this trial is testingThe e-BILD Study: Effects of E-cigarettes on Lung Health in Teenagers.Who this might be right forVapingLung Diseases Insel Gruppe AG, University Hospital Bern 60
Testing effectiveness (Phase 2)Study completedNCT05541497What this trial is testingVarenicline for Treatment of E-cigarette DependenceWho this might be right forSmoking Cessation Yale University 40
Not applicableStudy completedNCT01194583What this trial is testingEfficacy and Safety of an Electronic Nicotine Delivery Device (E-Cigarette) Without Nicotine CartridgesWho this might be right forHealthy SmokersSmoking Cessation University of Catania 100
Large-scale testing (Phase 3)UnknownNCT05825924What this trial is testingEffectiveness of Different THR Products in Adult PopulationWho this might be right forSmoking Cessation Foundation for a Smoke Free World INC 258
Not applicableWithdrawnNCT01979796What this trial is testingAntismoking Effects of Electronic Cigarettes in Subjects With Schizophrenia and Their Potential Influence on Cognitive Functioning.Who this might be right forTobacco Smoking in Schizophrenic Patients University of Catania
Not applicableStudy completedNCT03301129What this trial is testingRole of Traditional Cigarettes, Electronic and IQOS Cigarettes on Oxidative Stress.Who this might be right forOxidative Stress InductionEndothelial DysfunctionPlatelet Activation University of Roma La Sapienza 20
Testing effectiveness (Phase 2)Looking for participantsNCT07040566What this trial is testingA Trial of Varenicline for E-cigarette CessationWho this might be right forE-cigarette UseVapingNicotine Dependence Yale University 326
Not applicableStudy completedNCT04226404What this trial is testingCSD190501: A Study to Determine Subject Puffing Patterns of an Electronic Nicotine Delivery System in an Ambulatory SettingWho this might be right forSmokingSmoking BehaviorsTobacco Use+1 more RAI Services Company 75
Not applicableStudy completedNCT02949648What this trial is testingElectronic Cigarette Use and Quitting in YouthWho this might be right forSmoking The University of Hong Kong 189
Not applicableStudy completedNCT02185898What this trial is testingEvaluation of Environmental Emissions From Electronic Cigarettes and Tobacco-Burning CigarettesWho this might be right forSmoking R.J. Reynolds Vapor Company 71
Not applicableActive Not RecruitingNCT06164678What this trial is testingVaping Cessation Using the Ottawa Model for Smoking Cessation Among E-Cigarette UsersWho this might be right forTobacco SmokingVaping Ottawa Heart Institute Research Corporation 180
Not applicableStudy completedNCT04899999What this trial is testingGraphic Messages to Prevent E-Cigarette Use Among Black and Latino AdolescentsWho this might be right forVaping University of Rochester 362
Large-scale testing (Phase 3)Looking for participantsNCT06832098What this trial is testingNicotine Patch Plus Nicotine Mouth Spray Versus Nicotine Reduction for Vaping CessationWho this might be right forVaping Cessation University of Auckland, New Zealand 774
Not applicableNot Yet RecruitingNCT07581041What this trial is testingStudying the Impacts of Higher Taxes and Bans on Electronic Cigarettes to Improve Public HealthWho this might be right forTobacco-Related Carcinoma Ohio State University Comprehensive Cancer Center 3,400