Not applicableStudy completedNCT04487470What this trial is testingImpact of Cigar Flavor in Dual UsersWho this might be right forTobacco Use Disorder UConn Health 89
Testing effectiveness (Phase 2)Study completedNCT00087880What this trial is testingMaintaining Abstinence in Chronic Cigarette Smokers - 1Who this might be right forTobacco Use Disorder National Institute on Drug Abuse (NIDA) 407
Not applicableStudy completedNCT04379388What this trial is testingImproving Smoking Cessation in Socioeconomically-Disadvantaged Young AdultsWho this might be right forNicotine Dependence, Cigarettes University of Vermont 437
Testing effectiveness (Phase 2)Looking for participantsNCT06617312What this trial is testingExamining the Effects of Cytisinicline on Neural Substrates of Cigarette Cue-reactivityWho this might be right forSmoking CessationTobacco Use Disorder University of California, Los Angeles 64
Not applicableStudy completedNCT02740595What this trial is testingE-cigarettes and Blood Vessel FunctionWho this might be right forNicotine Dependence University of California, Los Angeles 148
Very early researchStudy completedNCT06602492What this trial is testingCompensatory Behavior of E-cig Users in Response to Reduced Nicotine E-liquidsWho this might be right forHealthyNicotine AddictionElectronic Cigarette Use Rochester Institute of Technology 72
Not applicableStudy completedNCT04568395What this trial is testingAcute Effects of TCIG vs ECIG in PLWHWho this might be right forE Cigarette UseVapingSmoking+6 more University of California, Los Angeles 37
Not applicableStudy completedNCT05432830What this trial is testingSex Differences in E-cig Perception: Study 1Who this might be right forNicotine AddictionE-Cig UseCigarette Smoking+1 more Yale University 66
Not applicableStudy completedNCT03164668What this trial is testingMenthol Flavored E-cigarette Use During a Simulated Ban of Menthol CigarettesWho this might be right forTobacco Use Disorder University of Minnesota 37
Not applicableStudy completedNCT05072925What this trial is testingBIDI Stick ENDS Abuse Liability and Puffing Topography AssessmentWho this might be right forE-cigarette UseCigarette Smoking BIDI Vapor 18
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
Early research (Phase 1)WithdrawnNCT03069768What this trial is testingStage Ib Trial of mSMART With VareniclineWho this might be right forNicotine Dependence Duke University
Testing effectiveness (Phase 2)Study completedNCT01081119What this trial is testingBrief Voluntary Alcohol and Drug Intervention for Middle School YouthWho this might be right forAlcohol DrinkingCigarette SmokingMarijuana Smoking RAND 6,455
Testing effectiveness (Phase 2)Study completedNCT00502216What this trial is testingNaltrexone and Varenicline: Weight Gain and Tolerability in Cigarette SmokersWho this might be right forSmokingNicotine Dependence Yale University 40
Testing effectiveness (Phase 2)Study completedNCT02501265What this trial is testingAdaptive Pharmacotherapy for Smoking CessationWho this might be right forNicotine Dependence Duke University 188
Testing effectiveness (Phase 2)Study completedNCT00960778What this trial is testingGender Differences in Response to Nicotine Replacement Therapy and De-Nicotinized CigarettesWho this might be right forNicotine Dependence Medical University of South Carolina 33
Not applicableStudy completedNCT05210608What this trial is testingWorking Memory Training on Delay Discounting Among Cigarette SmokersWho this might be right forTobacco Use Disorder/Cigarette Smoking University of Kansas Medical Center 13
Not applicableStudy completedNCT02348385What this trial is testingImaging Extrastriatal Dopamine Release in Tobacco Smokers and NonsmokersWho this might be right forNicotine Dependence Yale University 49
Large-scale testing (Phase 3)Study completedNCT00682474What this trial is testingSchool Nurse-Delivered Smoking Cessation InterventionWho this might be right forCigarette SmokingNicotine Dependence University of Massachusetts, Worcester 1,058
Not applicableStudy completedNCT01880099What this trial is testingHelp People Quit Smoking.Who this might be right forNicotine Dependence Yale University 60