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28 recruiting studies matching your filters
Phase 1
Comparative Pharmacokinetics and Pharmacodynamics of Synthetic Nicotine
In a crossover study, experienced electronic cigarette users will vape 3 different forms of nicotine: natural (derived from tobacco), synthetic, or a 50:50 mix…
Nicotine DependenceNicotine Vaping
University of California, San FranciscoNCT05962229
Observational
Effects of Relighting on Smoke Toxicant Deliveries and Subjective Smoking Measures
Characterize effects of relighting on smoke toxicant deliveries and subjective smoking measures. This will be a within-subject comparison in a single experimen…
Tobacco UseCigarette SmokingNicotine Dependence
Masonic Cancer Center, University of MinnesotaNCT06295757
Phase 4
A Prospective Trial of Varenicline and Incentives for E-cigarette Cessation in Adults Who Co-use Cannabis
The purpose of this study is to better understand tobacco outcomes using a commonly prescribed stop smoking medication (varenicline) and financial incentives f…
Nicotine DependenceTobacco Use Disorder
Medical University of South CarolinaNCT06688539
Phase 1
An Innovative Digitally-Delivered Olfactory Method for Reducing Cigarette Cravings and Supporting Smoking Cessation
The proposed project aims to refine and test a novel biobehavioral smoking cessation intervention that integrates the strategic application of olfactory stimul…
Nicotine Dependence
University of HoustonNCT07007195