Testing effectiveness (Phase 2)Ended earlyNCT01756053What this trial is testingEffects of ABT-089 on Smoking Abstinence Symptoms and RewardWho this might be right forNicotine Addiction University of Pennsylvania 17
Not applicableStudy completedNCT00740896What this trial is testingAcute Effects of Smoking on Airway Dendritic CellsWho this might be right forTobacco Use Disorder University of Rostock 16
Not applicableLooking for participantsNCT07576595What this trial is testingMultilevel Intervention for LDCT Lung Cancer Screening and Smoking Cessation Among African AmericansWho this might be right forLung Cancer ScreeningTobacco Use DisorderSmoking Cessation Louisiana State University Health Sciences Center in New Orleans 250
Not applicableStudy completedNCT00407277What this trial is testingNeural Inhibition as a Mechanism of Nicotine Dependence Among Persons With SchizophreniaWho this might be right forSmokingNicotine DependenceSchizophrenia+3 more Centre for Addiction and Mental Health 120
Not applicableStudy completedNCT01084707What this trial is testingMultiple-dose Nicotine Pharmacokinetics With a New Oral Nicotine Replacement Product.Who this might be right forTobacco Dependence McNeil AB 40
Post-approval studies (Phase 4)Study completedNCT00332644What this trial is testingSmoking Cessation Medications: Efficacy, Mechanisms and AlgorithmsWho this might be right forNicotine Dependence University of Wisconsin, Madison 1,504
Testing effectiveness (Phase 2)Ended earlyNCT04396834What this trial is testingMechanisms of Lorcaserin for Smoking CessationWho this might be right forTobacco Use DisorderSmoking Cessation The Mind Research Network 3
Not applicableUnknownNCT04419922What this trial is testingA Digital Smoking Cessation Intervention for Adults With Substance Use DisorderWho this might be right forTobacco Use DisorderSubstance Use Disorders BrightView LLC 100
Not applicableStudy completedNCT04043728What this trial is testingAddressing Psychological Risk Factors Underlying Smoking Persistence in COPD Patients: The Fresh Start StudyWho this might be right forCopdSmoking CessationNicotine Dependence+2 more Rush University Medical Center 18
Not applicableStudy completedNCT01880099What this trial is testingHelp People Quit Smoking.Who this might be right forNicotine Dependence Yale University 60
Not applicableStudy completedNCT02952703What this trial is testingDisseminating and Implementing a Smoking Cessation Program for Pregnant and Postpartum WomenWho this might be right forSmokingTobacco Use Disorder University of Wisconsin, Madison 185
Testing effectiveness (Phase 2)Study completedNCT01592695What this trial is testingTailored Tobacco Quitline for Rural VeteransWho this might be right forCigarette Smoking Iowa City Veterans Affairs Medical Center 63
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 completedNCT01368016What this trial is testingNicotine Pharmacodynamics With a New Oral Nicotine Replacement Therapy and Nicotine GumWho this might be right forTobacco Dependence McNeil AB 346
Not applicableNot Yet RecruitingNCT07779161What this trial is testingImpact of Appointment Reminder Strategies on Smoking Cessation Clinic AttendanceWho this might be right forBehavioral InterventionNicotine Addiction Medical University of Gdansk 300
Very early researchNot Yet RecruitingNCT07694466What this trial is testingLung Health and Breath Biomarkers: Acute Effects of Inhaled CannabisWho this might be right forCannabis UseTobaccoBiomarkers Hannah Harris 12
Not applicableStudy completedNCT03206710What this trial is testingVitamin C Supplementation to Pregnant Smokers: Follow-up of 2 Randomized Trials Plus Changes in DNA MethylationWho this might be right forAsthmaWheezingIn Utero Nicotine+1 more Oregon Health and Science University 395
Post-approval studies (Phase 4)Study completedNCT02378714What this trial is testingBehavioral Activation and Varenicline for Smoking Cessation in Depressed SmokersWho this might be right forNicotine DependenceMajor Depressive Disorder Northwestern University 300
Early research (Phase 1)Looking for participantsNCT05445804What this trial is testingOral Cannabidiol for Tobacco CessationWho this might be right forTobacco UseTobacco SmokingTobacco Dependence+2 more Johns Hopkins University 50
Not applicableUnknownNCT01185652What this trial is testingA Study on Smoking-related Lung Function Abnormalities and Correlation With Serum Biomarkers in ChineseWho this might be right forChronic Airflow Obstruction The University of Hong Kong 1,000