Evaluating CFTR function in cystic fibrosis patients treated with CFTR modulators

CFTR Biomarker Studie Bei Patient*Innen Mit Mukoviszidose Und CFTR-Modulatortherapie

Observational Charite University, Berlin, Germany · NCT04732910

This study is testing how well CFTR modulators work for people with cystic fibrosis by looking at changes in their body functions and health over a year.

Quick facts

Study typeObservational
Enrollment500 (estimated)
Ages6 Months and up
SexAll
SponsorCharite University, Berlin, Germany Academic / other
Locations4 sites (Berlin, State of Berlin and 3 other locations)
Trial IDNCT04732910 on ClinicalTrials.gov

What this trial studies

This observational study assesses the impact of CFTR modulators on CFTR function in patients with cystic fibrosis. It measures biomarkers such as intestinal current measurement (ICM), nasal potential difference (NPD), and sweat chloride levels before treatment and at 12 and 52 weeks post-therapy initiation. Additionally, clinical parameters including lung function and imaging studies will be evaluated to understand the therapy's effects comprehensively. The study aims to gather real-world data on the efficacy of CFTR modulators in improving patient outcomes.

Who should consider this trial

Good fit: Ideal candidates for this study are patients with cystic fibrosis who have been prescribed CFTR modulator therapy by their physician.

Not a fit: Patients currently participating in other investigational drug studies may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the understanding of CFTR modulator therapies and their effectiveness in improving the health of cystic fibrosis patients.

How similar studies have performed: Other studies have shown promising results with CFTR modulators, indicating a potential for success in this observational approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Decision for cystic fibrosis (CF) transmembrane regulator (CFTR)-modulator therapy by the patient and the caring CF physician
* Signed informed consent form (ICF) and, where appropriate, signed assent form.

Exclusion Criteria:

* Ongoing participation in an investigational drug study (including studies investigating lumacaftor, tezacaftor or ivacaftor)

Where this trial is running

Berlin, State of Berlin and 3 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Cystic FibrosisCFTRICMNPD
Last reviewed 2026-06-15 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.