Clinical Research Directory
Browse clinical research sites, groups, and studies.
DOSE-UP: Dose Optimization for Smoking and E-Cigarette Use Pharmacotherapy
Sponsor: Medical University of South Carolina
Summary
This randomized clinical trial evaluates the effectiveness of augmented-dose combination nicotine replacement therapy (NRT) versus standard-dose NRT and no-NRT control for cessation of dual combustible cigarette (CC) and electronic cigarette (EC) use. Adults who currently engage in dual use and are motivated to quit both products will be assigned to one of three 12-week interventions: (1) no pharmacotherapy (behavioral support only), (2) standard-dose NRT (21 mg nicotine patch + 4 mg lozenges, 5-20/day), or (3) augmented-dose NRT (21 mg + 14 mg patches + 4 mg lozenges, 5-30/day). All groups receive evidence-based behavioral support through the EX Program. Primary outcomes include biochemically confirmed dual abstinence and CC-only abstinence at 12 and 24 weeks. A subset of participants will provide blood and saliva samples to assess DNA damage biomarkers associated with tobacco use and cessation.
Official title: High-Dose Nicotine Replacement Therapy for Quitting Cigarettes and E-cigarettes
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
321
Start Date
2026-10-10
Completion Date
2031-07-10
Last Updated
2026-08-11
Healthy Volunteers
No
Conditions
Interventions
Text- and web-based support
Participants will enroll in the Ex Program for support in quitting smoking and vaping.
Nicotine Replacement Therapy (NRT, nicotine patch)
21mg patch
Nicotine Replacement Therapy (NRT, nicotine patch)
21mg + 14mg patch
Nicotine replacement therapy lozenge
4mg; 5-20/day
Nicotine replacement therapy lozenge
4mg; 5-30/day
Locations (1)
Medical University of South Carolina
Charleston, South Carolina, United States