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New study probes exercise breathing in CF patients on breakthrough drug

NCT ID NCT07314229

Knowledge-focused Sponsor: University Hospital, Lille 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at how cystic fibrosis patients who take the drug combination Elexacaftor-Tezacaftor-Ivacaftor (ETI) breathe during exercise. Researchers will measure lung function while patients walk or step, aiming to find out how many have limited breathing capacity. The results may help tailor exercise advice for these patients.

What this could mean

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

What this could lead to
If successful, this study could help doctors better understand how well cystic fibrosis patients on ETI therapy can exercise, potentially guiding personalized rehabilitation programs.
What could go wrong
This is an observational study, not testing a new treatment. It only measures breathing during exercise, so it won't directly improve health or change therapy.

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

About 130 people

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

Started

Dec 2025

Expected to finish

Apr 2027

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

18 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: * Male or female * Adult aged 18 or over * Suffering from cystic fibrosis * Treated at the CRCM in Lille and Créteil * Treated by ETI * Be covered by social security * Be able to understand the requirements of the study, provide written informed consent, and comply with the study's data collection procedures Exclusion Criteria: * Medical contraindication or inability to perform a stress test according to ERS recommendations * Absolute contraindications * Relative contraindications: * Exacerbation of the condition in the 4 weeks preceding the V1 visit (27). * Pregnant or breastfeeding women * Administrative reasons * Persons deprived of their liberty * Minors or protected adults * Persons who have refused or are unable to give informed consent * Persons in emergency situations

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Conditions

The condition(s) this trial relates to.

cystic fibrosis Motor Activity

As listed by the trial registrant

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

Cystic fibrosis (CF) Mucoviscidosis

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

  • University Hospital

    RECRUITING

    Lille, 59037, France

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