Overview Efficacy of Varenicline for Smokeless Tobacco Use in India Status: Completed Trial end date: 2013-10-01 Target enrollment: Participant gender: Summary This study, based in India, is testing the efficacy of varenicline to help smokeless tobacco users with cessation efforts. Phase: Phase 2 Details Lead Sponsor: University of PennsylvaniaCollaborator: All India Institute of Medical Sciences, New DelhiTreatments: LobelineVarenicline