Impact of CFTR Modulators on Sinus Health in Young Children with Cystic Fibrosis

Sinus Disease in Young Children With Cystic Fibrosis

Observational University of California, Los Angeles · NCT06191640

This study is testing if a new treatment for cystic fibrosis can improve sinus health and smell in young children aged 2-8.

Quick facts

Study typeObservational
Enrollment80 (estimated)
Ages2 Years to 8 Years
SexAll
SponsorUniversity of California, Los Angeles Academic / other
Locations6 sites (Aurora, Colorado and 5 other locations)
Trial IDNCT06191640 on ClinicalTrials.gov

What this trial studies

This observational study examines how highly effective cystic fibrosis transmembrane conductance regulator (CFTR) modulators affect chronic rhinosinusitis and olfactory dysfunction in children aged 2-8 with cystic fibrosis. It includes two groups: one receiving modulator therapy and a control group not receiving it. Over two years, participants will undergo MRI scans, olfactory tests, and quality of life surveys to assess the impact of treatment on sinus health and smell capabilities. The study aims to clarify the benefits of early modulator therapy in this young population.

Who should consider this trial

Good fit: Ideal candidates are children aged 2-8 years with a confirmed diagnosis of cystic fibrosis, either receiving or not receiving highly effective modulator therapy.

Not a fit: Patients who have undergone sinus surgery or are using investigational drugs or corticosteroids may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved management of sinus health and olfactory function in young children with cystic fibrosis.

How similar studies have performed: While studies on CFTR modulators have shown promise in other areas, this specific investigation into sinus health and olfactory function in young children is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

HEMT Group:

* Children with documentation of a CF diagnosis
* Age 2-8 years old at first study visit
* CFTR mutation consistent with FDA labeled indication of highly effective modulator therapy (ivacaftor or elexacaftor/tezacaftor/ivacaftor)
* Clinician intent to prescribe ivacaftor or ETI so that enrollment is before start of HEMT

Non-HEMT/Control Group:

* Children with documentation of a CF diagnosis
* Age 2-8 years at first study visit
* Ineligible for highly effective modulator therapy (ivacaftor or elexacaftor/tezacaftor/ivacaftor) based on CFTR mutation or clinical decision not to initiate HEMT if eligible

Exclusion Criteria:

For Both Groups:

* Use of an investigational drug within 28 days prior to the first study visit
* Use of ivacaftor or elexacaftor/tezacaftor/ivacaftor within the 180 days prior to and including the first study visit
* Use of chronic oral corticosteroids within the 28 days prior to and including the first study visit.
* Sinus surgery within 180 days prior to the first study visit

Where this trial is running

Aurora, Colorado and 5 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 Fibrosis in ChildrenCystic FibrosisChronic RhinosinusitisOlfactory DisorderOlfactory ImpairmentOlfactory Dysfunction
Last reviewed 2026-06-10 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.