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Lung age test may spark quit smoking success

NCT ID NCT04276116

Symptom relief Sponsor: Assistance Publique - Hôpitaux de Paris Source: ClinicalTrials.gov ↗

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 This study
Running, but no longer taking on new participants.
Completed
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether telling smokers their estimated 'pulmonary age' (how old their lungs act) helps them quit. About 100 smokers aged 25+ will be randomly assigned to get their pulmonary age or not. Success is measured by a breath test at 6 months. The goal is to see if this simple feedback boosts motivation to stop smoking.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
pulmonary age communication
What this could lead to
If it works, this could give doctors a simple new tool to motivate smoking cessation.
What could go wrong
This is a small, early-stage trial with only 101 participants. The effect may be small or not last beyond 6 months.

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

101 people

The number who actually took part.

Started

Oct 2023

Expected to finish

Jun 2026

An estimate. End dates often move.

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

25 years and older

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patient 25 years of age or older * Smoker for a year or more * Patient giving informed and written consent to participate in the study * Patient affiliated to a social security scheme Exclusion Criteria: * Known respiratory illness, chronic or acute in progress or less than 3 weeks old (BPCO, asthma, other respiratory disease * Refusal * Myocardial infarction less than a year * Chest or abdominal pain preventing or limiting completion of the forced exhalation maneuver necessary for evaluation of "pulmonary age", whatever the cause * Oral or facial pain exacerbated by the mouthing of the mouthpiece * Stress urinary incontinence * Mental confusion or dementia * Pregnant or breastfeeding woman * Major protected * Do not understand french

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Conditions

The condition(s) this trial relates to.

Smoking Cessation

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Smoking cessation

Contacts and locations

Locations

  • Hôpital Saint Antoine

    Paris, 75012, France

More trials for these conditions

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