NCT07040566 2025-12-17A Trial of Varenicline for E-cigarette CessationYale UniversityPhase 2 Recruiting326 enrolled
NCT01756885 2019-07-30Extended Varenicline Treatment for Smoking Among Cancer PatientsUniversity of PennsylvaniaPhase 3 Completed207 enrolled 17 charts
NCT00790569 2018-06-06Varenicline or Nicotine Patch and Nicotine Gum in Helping Smokers in a Methadone Treatment Program Stop SmokingButler HospitalPhase NA Completed315 enrolled 19 charts