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NOT YET RECRUITING
NCT07754578
PHASE2

DOSE-UP: Dose Optimization for Smoking and E-Cigarette Use Pharmacotherapy

Sponsor: Medical University of South Carolina

View on ClinicalTrials.gov

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

Interventions

BEHAVIORAL

Text- and web-based support

Participants will enroll in the Ex Program for support in quitting smoking and vaping.

DRUG

Nicotine Replacement Therapy (NRT, nicotine patch)

21mg patch

DRUG

Nicotine Replacement Therapy (NRT, nicotine patch)

21mg + 14mg patch

DRUG

Nicotine replacement therapy lozenge

4mg; 5-20/day

DRUG

Nicotine replacement therapy lozenge

4mg; 5-30/day

Locations (1)

Medical University of South Carolina

Charleston, South Carolina, United States