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Can your home air trigger asthma? new study investigates

NCT ID NCT05525169

Knowledge-focused Sponsor: Nantes University Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tracks 30 adults with asthma to see if changes in indoor and outdoor air pollution are linked to asthma attacks. Participants will have sensors placed in their homes to measure pollutants like fine particles and chemicals. The goal is to understand which pollutants are most harmful and help guide future prevention strategies.

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.

Participants

About 30 people

The number the study aims to enrol. It can still change while the study runs.

Started

Nov 2022

Expected to finish

Nov 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.

Who is studied

The study population will consist of adult men and women recruited from the active file of asthma patients followed at the Nantes University Hospital, the Saint Nazaire Hospital, the Châteaubriant Nozay Pouancé Hospital and the Erdre et Loire Hospital. Regardless of the type of asthma, patients will be potentially included if they have a minimum of 4 exacerbations during the year preceding inclusion in the EXAP project\>. Participation in other non-interventional research is allowed during the study unless this research increases the number of exacerbations.

Ages

18 to 99 years

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 over 18 years of age, * Patient with a confirmed diagnosis of asthma for at least 12 months as defined by the investigator, * Patient with at least 4 asthma exacerbations in the last year * Patient sleeping at least 6 nights per week in the same home Exclusion Criteria: * Patient who is an active smoker or living with an active smoker, * Patient with a diagnosis of COPD, ABPA or associated pulmonary fibrosis, * Patient with an asthma exacerbation within 15 days prior to the inclusion visit, * Patient with known occupational exposure, * Patient living in a dwelling that does not allow the installation of sensors (inability to connect the sensor to the power supply, no location for the outdoor sensor...) * Patient who plans to move in the next 6 months, * Patient with a life expectancy of less than 6 months, * Patient who has someone living in their household also included in EXAP, * Patient who lives in an apartment and does not have a balcony or space for the outdoor sensor, * Pregnant or breastfeeding women,

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Conditions

The condition(s) this trial relates to.

asthma

As listed by the trial registrant

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

Asthma

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • CHU de Nantes

    RECRUITING

    Nantes, 44093, France

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