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E-Cigarettes help smokers kick the habit?

NCT ID NCT03277495

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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.

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

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

63 people

The number who actually took part.

Started

Jul 2023

Finished

Aug 2024

Lead sponsor

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

21 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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

  • Institute for Health Research and Policy

    Chicago, Illinois, 60608, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.