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Study identifier: NCT06614504 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Nicotine Regulation for Dual Users of E-cigarettes and Cigarettes

Condition: Tobacco Use Disorder  ·  Sponsor: University of Vermont

PhasePhase 2
Planned participants308
Who can joinAll sexes, 21 Years to no upper limit
Healthy volunteersYes

About this study

Cigarette smoking remains the leading cause of preventable morbidity and mortality in the US. Use of multiple tobacco products is becoming increasingly prevalent, with dual use of e-cigarettes and cigarettes representing the most common combination. Though e-cigarettes are not without risk, completely switching from cigarettes to e-cigarettes likely reduces risk for tobacco-related harm. However, many established dual users maintain long-term smoking and the majority who use e-cigarettes non-daily are at an even greater risk for prolonged smoking than exclusive cigarette smokers. The Food and Drug Administration Center for Tobacco Products (FDA CTP) has announced plans to implement a nicotine-limiting product standard, capping the nicotine in cigarettes at a minimally or non-addictive level. Randomized controlled trials (RCTs) demonstrate that adults who exclusively smoke cigarettes respond to very low nicotine content (VLNC) cigarettes with reductions in smoking, demand, and dependence. However, nicotine reduction RCTs to date have excluded people who regularly use e-cigarettes and therefore it remains unclear how a nicotine-limiting standard for cigarettes would affect smoking among dual users. Given the potential substitutability of e-cigarettes for cigarettes, reducing the nicotine in cigarettes could promote a transition to exclusive e-cigarette use among dual users unable to completely quit nicotine, but only if sufficiently appealing e-cigarettes remain available. E-ci…

This description comes directly from the study's public registry record.

Talk to the study team

Emily Booth  ·  802-656-1641  ·  emily.booth@med.uvm.edu

Always discuss trial participation with your own doctor first.

Locations (2)

Brown UniversityProvidence, Rhode Island, United StatesRecruiting
University of VermontBurlington, Vermont, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT06614504