Testing effectiveness (Phase 2)Study completedNCT02906644What this trial is testingCombination Nicotine Patch / Lorcaserin for Smoking CessationWho this might be right forNicotine Dependence Duke University 97
Testing effectiveness (Phase 2)Study completedNCT00743366What this trial is testingEffect of Quetiapine on Marijuana Withdrawal and RelapseWho this might be right forMarijuana Smoking New York State Psychiatric Institute 20
Early research (Phase 1)Study completedNCT01062932What this trial is testingInvestigation of Cycloserine as a Smoking Cessation TreatmentWho this might be right forNicotine Addiction Baylor College of Medicine 34
Very early researchStudy completedNCT01495819What this trial is testingNicotine Reinforcement and Aversion in Young Adult Light SmokersWho this might be right forNicotine Addiction Yale University 34
Early research (Phase 1)Study completedNCT02792426What this trial is testingNicotine Pharmacokinetics From Research Electronic Nicotine Delivery System S-TA-U001 in Smokers and E-Cigarette UsersWho this might be right forCigarette Smoking NJOY, Inc. 34
Post-approval studies (Phase 4)Study completedNCT00296647What this trial is testingSmoking Cessation Intervention: Effectiveness in Primary CareWho this might be right forTobacco Dependence University of Wisconsin, Madison 1,346
Very early researchLooking for participantsNCT07007195What this trial is testingSmart Olfaction App to Reduce RelapseWho this might be right forNicotine Dependence University of Houston 132
Not applicableUnknownNCT00456534What this trial is testingThe Effect of Smoking on PerceptionWho this might be right forNicotine Dependence American University 130
Not applicableWithdrawnNCT04047836What this trial is testingVaping High vs. Low Nicotine E-LiquidWho this might be right forCardiovascular Risk FactorNicotine Dependence University of California, San Francisco
Not applicableUnknownNCT02204956What this trial is testingSmoking Cessation Following Psychiatric HospitalizationWho this might be right forNicotine Dependence University of Texas at Austin 422
Not applicableStudy completedNCT00770237What this trial is testingEffects of Smoking Cues on Tobacco Craving Responses and the Reinforcing Efficacy of Cigarettes in Smokers With and Without SchizophreniaWho this might be right forSchizophreniaNicotine Dependence University of Maryland, Baltimore 44
Not applicableNot Yet RecruitingNCT06101459What this trial is testingA Study About Association Between Microbiome, Metabolome and Clinical Characteristics in COPD PatientsWho this might be right forChronic Obstructive Pulmonary Disease Asan Medical Center 300
Large-scale testing (Phase 3)Study completedNCT00587769What this trial is testingChantix & Bupropion for Smoking CessationWho this might be right forSmokingTobacco Use Disorder Mayo Clinic 38
Not applicableStudy completedNCT00314197What this trial is testingImproving Health Behaviors Through Telephone Linked CareWho this might be right forDietPhysical ActivitySmoking+1 more American Academy of Family Physicians 400
Not applicableLooking for participantsNCT07812753What this trial is testingModulating Neural Mechanisms of Reward Processing in Tobacco UsersWho this might be right forTobacco Use Disorder Rutgers, The State University of New Jersey 54
Not applicableStudy completedNCT03901066What this trial is testingSmoking Dependence and PeriodontitisWho this might be right forSmokingPeriodontitis University of Liege 34
Very early researchStudy completedNCT02193256What this trial is testingVarenicline + Prazosin for Heavy Drinking SmokersWho this might be right forCigarette SmokingAlcohol Use Disorders Yale University 5
Not applicableStudy completedNCT05316727What this trial is testingElectronic Nicotine Delivery Devices and Potential Progression to Acute Lung InjuryWho this might be right forAcute Lung InjuryPulmonary InjuryElectronic Cigarette Use+1 more University of Pittsburgh 101
Testing effectiveness (Phase 2)Study completedNCT02188459What this trial is testingPlacebo-controlled Trial of Bupropion for Smoking Cessation in Pregnant WomenWho this might be right forSmokingNicotine Dependence Henry Kranzler 129
Not applicableStudy completedNCT03419741What this trial is testingBrain Stimulation For Cancer SmokersWho this might be right forCancer of Head and NeckBreast CancerProstate Cancer+1 more Medical University of South Carolina 11