Not applicableStudy completedNCT04450537What this trial is testingPACE Vape Messaging StudyWho this might be right forVapingE-cigarette UseElectronic Cigarette Use University of Vermont 569
Not applicableStudy completedNCT05958992What this trial is testingEffects of e-Cigarettes on Perceptions and Behavior - Remote Substudy # 2Who this might be right forElectronic Cigarette UseCigarette SmokingCigarette Use, Electronic+1 more University of Southern California 461
Not applicableUnknownNCT03102684What this trial is testingImpact of Secondhand Exposure to E-cigarettes Aerosols on the Respiratory SystemWho this might be right forSecond Hand Tobacco Smoke Institut Català d'Oncologia 40
Not applicableStudy completedNCT02416011What this trial is testingSmoking Cessation Self-Help for Dual Users of Tobacco Cigarettes and E-CigarettesWho this might be right forSmoking Cessation H. Lee Moffitt Cancer Center and Research Institute 2,896
Not applicableStudy completedNCT05239884What this trial is testingCSD201202: A Study to Assess Nicotine Uptake From Electronic Nicotine Delivery System P12Who this might be right forSmokingTobacco Use RAI Services Company 36
Not applicableEnded earlyNCT05598125What this trial is testingStudy of Vascular Function Before vs After Smoking an E-cigarette as Compared to a Normal CigaretteWho this might be right forEndothelial Function GWT-TUD GmbH 64
Large-scale testing (Phase 3)Study completedNCT02521662What this trial is testingThe Use of Nicotine Patches Together With E-cigarettes (With and Without Nicotine) for Smoking CessationWho this might be right forSmoking Cessation University of Auckland, New Zealand 1,124
Early research (Phase 1)Study completedNCT06169813What this trial is testingE-cigarette Harm Reduction Among PLWHA in South AfricaWho this might be right forTobacco Smoking NYU Langone Health 106
Post-approval studies (Phase 4)Not Yet RecruitingNCT07786896What this trial is testingEvaluation of Dependence and Nicotine Replacement Therapy-Supported Cessation Efforts Among Regular Electronic Cigarette UseWho this might be right forE Cigarette UseCessation, TobaccoCessation, Nicotine West Virginia University 100
Testing effectiveness (Phase 2)Study completedNCT04090879What this trial is testingLow Nicotine Content Cigarettes in Vulnerable Populations: Affective DisordersWho this might be right forTobacco Use Disorder Brown University 326
Not applicableStudy completedNCT02527980What this trial is testingE-Cigarettes: Dynamic Patterns of Use and Health EffectsWho this might be right forSmokingNicotine Dependence University of Wisconsin, Madison 422
Not applicableWithdrawnNCT03379025What this trial is testingEffects of Electronic Cigarettes in Cigarette Smokers With Mild to Moderate COPDWho this might be right forCOPDTobacco Use Massachusetts General Hospital
Post-approval studies (Phase 4)Ended earlyNCT01925781What this trial is testingE-Cigarettes Versus NRT Gum for Smoking CessationWho this might be right forNicotine AddictionSmoking Cessation Creighton University 10
Not applicableStudy completedNCT05881304What this trial is testingSwitching Individuals in Treatment for Opioid Use Disorder Who Smoke Cigarettes to the SRECWho this might be right forElectronic Cigarette Use Massachusetts General Hospital 41
Not applicableEnrolling By InvitationNCT06619964What this trial is testingDeveloping Evidence to Inform Regulatory Policy on Nicotine Content in E-LiquidsWho this might be right forNicotine Addiction Rochester Institute of Technology 120
Not applicableStudy completedNCT07214168What this trial is testingVape Use Among Younger & Older SmokersWho this might be right forSmoking CigaretteSmoking BehaviorsVaping+1 more Abramson Cancer Center at Penn Medicine 62
Not applicableStudy completedNCT05134415What this trial is testingUse Behavior, Nicotine Uptake, and Subjective Effects Comparison of Tobacco and Menthol e-Liquids by ENDS ConsumersWho this might be right forElectronic Cigarette Use Cheerain HK Limited 40
Not applicableLooking for participantsNCT07161050What this trial is testingEffects of a Low Nicotine Standard and Tobacco Prices on Illegal Cigarette PurchasingWho this might be right forCigarette SmokingE-cigarette Use Virginia Polytechnic Institute and State University 70
Not applicableStudy completedNCT05207033What this trial is testingResponses to Regulated E-Cigarette AdvertisementsWho this might be right forTobacco Use University of Massachusetts, Worcester 195
Not applicableStudy completedNCT05423340What this trial is testingEffect of E-Liquid Flavor on Respiratory Symptoms in People Using Electronic Nicotine Delivery SystemsWho this might be right forElectronic Cigarette Use Roswell Park Cancer Institute 163