Effects of Modulator Therapy on Cystic Fibrosis Microbiome

Impact of Highly Effective Modulator Therapy on Sinonasal Microbial Communities, Host Mucosal Inflammatory Environment and Quality of Life in Adults With Cystic Fibrosis

Observational Dartmouth-Hitchcock Medical Center · NCT05982795

This study is trying to see how a new treatment for cystic fibrosis affects the bacteria in the sinuses and overall health of adults with the condition.

Quick facts

Study typeObservational
Enrollment30 (estimated)
Ages18 Years to 99 Years
SexAll
SponsorDartmouth-Hitchcock Medical Center Academic / other
Locations1 site (Lebanon, New Hampshire)
Trial IDNCT05982795 on ClinicalTrials.gov

What this trial studies

This observational study aims to investigate how Cystic Fibrosis Transmembrane Conductance Regulator Modulator Therapy affects the microbiome and inflammation in the paranasal sinuses of adults with cystic fibrosis. Participants will provide nasal samples, undergo olfactory function testing, and complete surveys regarding their quality of life and sense of smell over a two-year period with five research visits. The study will analyze bacterial communities and inflammatory profiles to understand the therapy's impact on sinonasal disease and overall health.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 99 diagnosed with cystic fibrosis who are English-speaking and able to provide informed consent.

Not a fit: Patients who are unable to consent or are under 18 years old will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the understanding of how modulator therapy improves sinonasal health and quality of life for cystic fibrosis patients.

How similar studies have performed: While similar studies on cystic fibrosis therapies exist, this specific focus on the sinonasal microbiome and inflammation is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Subjects between the ages of 18 years old (inclusive) and 99 years old (inclusive)
* English-speaking
* Diagnosed with CF as established by genetic testing combined with clinical assessment and/or sweat chloride
* Patients being seen at the New Hampshire Cystic Fibrosis Center
* Adults able to sign informed consent

Exclusion Criteria:

* Adults unable to consent
* Individuals who are not yet adults
* Prisoners

Where this trial is running

Lebanon, New Hampshire

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
Last reviewed 2026-06-13 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.