Vaping cessation pill under trial: varenicline tested on 326 adults
NCT ID NCT07040566
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether the medication varenicline can help adults quit using e-cigarettes. Researchers will compare varenicline to a placebo in 326 people who vape daily. The main goal is to see if more participants can stop vaping for at least a week by the 12-week mark, with a follow-up at 26 weeks.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 326 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2025
- Expected to finish
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Oct 2030
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * report daily use of an e-cigarette containing nicotine * live in Connecticut or South Carolina Exclusion Criteria: * regular use of other tobacco products besides e-cigarettes * medical contraindications for varenicline use * current treatment for tobacco cessation * lack proficiency in English
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Hollings Cancer Center at MUSC (HCC)
RECRUITINGCharleston, South Carolina, 29425, United States
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Yale Cancer Center/Smilow Cancer Hospital at Yale-New Haven
RECRUITINGNew Haven, Connecticut, 06520, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Practice quitting: a new way to help smokers who Aren't ready to stop?
- Can a Quit-Smoking program built for transgender adults help them stop?
- Mindfulness meets wearable tech in a new bid to break the smoking habit
- Teens vs. vaping: can peer power break the habit?
- Can nicotine patches and lozenges break the vaping habit?