Kids' CF drug levels under the microscope: new study aims to personalize dosing
NCT ID NCT07303621
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how the cystic fibrosis drug combination ETI (elexacaftor-tezacaftor-ivacaftor) behaves in children aged 2 to 17. Researchers will measure drug levels in the blood and see how they relate to the drug's benefits and side effects, such as liver problems or mood changes. The goal is to better understand how to dose the drug safely and effectively in kids.
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 150 people
The number the study aims to enrol. It can still change while the study runs.
- Started
-
Feb 2026
- Expected to finish
-
Aug 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.
Who is studied
Study population is from a tertiary care hospital. Children enrolled in the study are followed in the referral center for pediatric cystic fibrosis.
- Ages
-
2 to 17 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 Hide 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: * Children aged 2 to 17 years old * Having Cystic Fibrosis * Treated by Elexacaftor/Tezacaftor and Ivacaftor (Trikafta® or Kaftrio®) Exclusion Criteria: * Allergy to previous CFTR modulator association (Ivacaftor, lumacaftor) * Pregnant women * Patient already enrolled in another study with CYP3A4 inhibitor * Pulmonary transplant recipient
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Cystic fibrosis (CF) are added.
Genom att skicka in godkänner du våra Användarvillkor
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.
-
The places running it
1 site. The list below names each one and where it is.
-
The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
-
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
-
Hôpital Femme Mère Enfant (HFME)
RECRUITINGBron, 69029, France
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Glucose sensor may flag diabetes risk in cystic fibrosis
- Can Drug-Level testing personalize cystic fibrosis treatment?
- MRI could reveal a new way to ease gut troubles in cystic fibrosis
- 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?