Clinical trial Recruiting at 1 site Observational Ages 2 and up

Effects of elexacaftor-tezacaftor-ivacaftor on metabolism, epigenetics, and gut bacteria in people with cystic fibrosis

Official title: Impact of Elexacaftor-Tezacaftor-Ivacaftor Treatment on Metabolic, Epigenetic and Fecal Microbiota Profiles in People With Cystic Fibrosis.

Run by Meyer Children's Hospital IRCCS · NCT07363304 · Data updated 2026-11-12

This project will test whether starting elexacaftor-tezacaftor-ivacaftor (ETI) changes blood metabolism, epigenetic markers, and the gut microbiome in people with cystic fibrosis.

More Cystic Fibrosis (CF) trials

Quick facts

Study typeObservational
Ages2 Years and up
SexAll
Enrollment150 (estimated)
SponsorMeyer Children's Hospital IRCCS
Academic / other
Locations6 sites (Bari, Bari and 5 other locations)
StatusRecruiting
StartedDecember 2, 2025
Main results expectedNovember 30, 2028
Study endsApril 30, 2029
Registry record updatedJanuary 26, 2026
Trial IDNCT07363304 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are people with cystic fibrosis of any age who are about to start ETI therapy under Italian marketing authorization and can provide informed consent and follow-up samples at a participating CF center.

Probably not a fit

Patients who are not starting ETI or who are already receiving ETI will not be eligible and thus are unlikely to receive any direct benefit from this project.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational, multicenter Italian project will enroll people with cystic fibrosis who are about to begin ETI therapy and will collect biological samples before and after treatment initiation. Researchers will analyze blood for metabolic and epigenetic markers and stool samples to profile fecal microbiota composition. Serial sampling and laboratory analyses will be used to detect treatment-associated shifts in metabolism, DNA methylation or other epigenetic signals, and microbial community structure. The goal is to map systemic and gut-level changes that occur as patients start ETI under real-world clinic conditions.

Why it matters

Potential benefit: If successful, this work could identify metabolic, epigenetic, or microbiome changes linked to ETI that help clinicians monitor patients, anticipate side effects, and tailor nutritional or microbial interventions.

How similar studies have gone: ETI has produced clear clinical benefits such as improved lung function and nutrition, and some recent reports note metabolic changes, but effects on epigenetic marks and the fecal microbiome remain incompletely characterized.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with CF, of any age, about to start ETI therapy, in accordance with marketing authorization Italian legislative directives, followed at the participating CF centers.
* Obtaining informed consent.

Exclusion Criteria:

* CF patients not in ETI therapy and CF patients already in ETI therapy.

Where it's running

  • Azienda Ospedaliera Universitaria Meyer Istituto di Ricovero e Cura a Carattere Scientifico
    Florence, Italy
    Recruiting
  • Centro per la Fibrosi Cistica, Azienda Universitaria Ospedaliera Consorziale Policlinico
    Bari, Bari, Italy
    Not yet recruiting
  • Dipartimento di Pediatria, Centro Fibrosi Cistica, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico
    Milan, Milano, Italy
    Not yet recruiting
  • Unità Pediatrica, Dipartimento di Scienze Mediche Traslazionali, Centro di Riferimento Regionale per la Fibrosi Cistica, Università degli Studi di Napoli Federico II
    Naples, Napoli, Italy
    Not yet recruiting
  • Ospedale pediatrico Bambino Gesù, IRCCS, Dipartimento Pediatrico Universitario Ospedaliero, UOC Pneumologia e Fibrosi Cistica
    Roma, Roma, Italy
    Not yet recruiting
  • Centro per la Fibrosi Cistica, Ospedale Infantile Regina Margherita
    Torino, Torino, Italy
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.