CF breakthrough may lower antibiotic doses, reduce side effects
NCT ID NCT07629986
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how the cystic fibrosis drug ETI affects the way the body handles antibiotics. Researchers want to see if people on ETI need lower antibiotic doses to treat lung infections, which could reduce harmful side effects like hearing loss or kidney damage. The study will involve 30 adolescents and adults with CF who are already taking ETI and need antibiotics for a lung infection.
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
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About 30 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2026
- Expected to finish
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May 2028
An estimate. End dates often move.
- 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.
Who is studied
CF patients
- Ages
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12 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Diagnosis of cystic fibrosis confirmed by sweat test and/or genetic testing * Treatment with elexacaftor/tezacaftor/ivacaftor (ETI) for at least 3 months * Age 12 years or older * Patient informed and not objecting to participation; for minors, parents/legal guardians informed and not objecting to participation * Clinical indication for antibiotic therapy for pulmonary exacerbation or respiratory infection according to treating physician * Affiliation to a social security system Exclusion Criteria: * Lung transplantation or heart-lung transplantation * Patients under guardianship or curatorship * Pregnant or breastfeeding women
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Fondation ILDYS
RECRUITINGRoscoff, 29680, France
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Other studies related to the condition(s) this trial covers.
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- AI may predict lung decline in cystic fibrosis kids using muscle and balance data
- Breathing vs. beating: which technique clears lungs better in cystic fibrosis?
- Could modern CF drugs make daily inhaled treatments obsolete?