Population Pharmacokinetics of Elexacaftor-tezacaftor-ivacaftor in a Paediatric Population
Recruiting now
Conditions studied: Cystic Fibrosis (CF)
In brief
Cystic fibrosis is a rare, progressive genetic disease caused by a mutation in the CFTR (cystic fibrosis transmembrane conductance regulator) gene. Respiratory and nutritional effects are crucial to patients' prognosis. Since the early years of 2010, etiological treatment has been based on the use of CFTRm (CFTR modulator), which aim to restore the function of the mutated protein. Initially used as monotherapy and targeting a limited number of patients, CFTRm has gradually been extended to a larger number of patients, to the point where it now concerns 9 out of 10 patients, through the use of triple therapy with Elexacaftor-Tezacaftor-Ivacaftro (ETI) or Kaftrio(R). The efficacy of triple therapy is spectacular, revolutionizing the prognosis of the disease. However, the potential for neuropsychological side-effects (20-50% depending on age, but more frequent in young children under 5) and hepatic side-effects (hepatic cytolysis) must be taken into account. A better understanding of pharmacokinetic variability in children, as well as the relationship between exposure to therapeutic effects and adverse reactions, is therefore particularly important. The aim of this study is to measure the association between the pharmacokinetic parameters of Elexacaftor, Tezacaftor and Ivacaftor (plasma clearance and volume of distribution) and therapeutic or adverse effects in pediatric patients with cystic fibrosis treated with the combination.
Key facts
- Study ID
- NCT07303621
- Run by
- Hospices Civils de Lyon
- People needed
- 150
- Starts
- 2026-02-09
- Expected to finish
- 2027-08-09
- Last updated by the study team
- 2026-02-20
Who can join
Age: 2 and older, up to 17. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- Children aged 2 to 17 years old
- Having Cystic Fibrosis
- Treated by Elexacaftor/Tezacaftor and Ivacaftor (Trikafta® or Kaftrio®)
You may not qualify if…
- Allergy to previous CFTR modulator association (Ivacaftor, lumacaftor)
- Pregnant women
- Patient already enrolled in another study with CYP3A4 inhibitor
- Pulmonary transplant recipient
Where it is running
- Hôpital Femme Mère Enfant (HFME) — Bron, France (enrolling)
Full record on ClinicalTrials.gov
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