E-Cigarettes help smokers kick the habit?
NCT ID NCT03277495
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether smokers who want to cut down can switch to a special research e-cigarette and smoke fewer regular cigarettes. Over 12 weeks, researchers tracked how many cigarettes people smoked and if any quit completely. The goal was to see if e-cigarettes are a helpful tool for reducing tobacco use.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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63 people
The number who actually took part.
- Started
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Jul 2023
- Finished
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Aug 2024
- 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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21 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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: 1. men and women 21 years of age or older; 2. daily smoking rate of 3 cigarettes/day or greater for at least one year; 3. interested in reducing cigarette use; 4. willing to try e-cigarettes; 5. able to attend in-person assessments over the next 5 months; 6. English speaking; and 7. breath CO of 3ppm or greater (assessed at baseline visit). Women who are of child-bearing age cannot be pregnant and must agree to use an approved form of birth control during the study. Exclusion Criteria: 1. current use of any smoking cessation medication or participation in a smoking cessation program or study; 2. current daily ENDS user; 3. pregnancy if female; and 4. no two members of the same household may participate in this study.
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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.
Contacts and locations
Locations
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Institute for Health Research and Policy
Chicago, Illinois, 60608, United States
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Other studies related to the condition(s) this trial covers.
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