New study explores how CF drugs change sinus bacteria and smell
NCT ID NCT05982795
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This observational study looks at how CFTR modulator therapy affects the nose and sinuses in adults with cystic fibrosis. Researchers will compare bacterial communities, inflammation, sense of smell, and quality of life between patients on the therapy and those not on it. Participants provide nasal samples, take smell tests, and fill out surveys. The goal is to understand how this therapy impacts chronic sinus problems.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- CFTR modulator therapy
- What this could lead to
- If successful, this study could reveal how CFTR modulators improve sinus health and quality of life in cystic fibrosis, guiding better management of chronic sinus disease.
- What could go wrong
- This is a small observational study (30 participants) comparing two groups, not a controlled trial. Results may not apply to all CF patients, and no new treatment is being tested.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 30 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2023
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
The study population is adult, English-speaking cystic fibrosis patients being seen at the New Hampshire Cystic Fibrosis Center.
- Ages
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18 to 99 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Dartmouth-Hitchcock Medical Center
RECRUITINGLebanon, New Hampshire, 03756, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Could cystic fibrosis offer hidden protection against COVID-19?
- Can a 'Treatable Traits' approach unlock better care for all airway diseases?
- A smartphone tool may help cystic fibrosis patients survive the lung transplant waitlist