About this trial
Aim of this study is to evaluate image quality and reproducibility of Xenon-129 and Inert fluorinated (19F) gas Magnetic Resonance Imaging (MRI) and to evaluate changes in lung structure and function in participants with cystic fibrosis (CF) and asthma compared to healthy controls.
Eligibility criteria
Qualifiers
Participants male and female aged 8 years old and older.
Participants have no smoking history.
For participants with CF and asthma, a clinical diagnosis is necessary and they should be at their baseline level of symptom control based on history.
Participants should have a FEV1%pred value greater than 40%.
Disqualifiers
Participant is, in the opinion of the investigator, mentally or legally incapacitated, preventing informed consent/assent from being obtained, or cannot read or understand the written material.
Participant has a history of cardiovascular disorders including coronary insufficiency, cardiac arrhythmias, severe hypertension.
Other than for the PEx sub-cohort, participant has had a cold or respiratory infection in the last four weeks.
Participant requires supplemental oxygen or has a daytime room air oxygen saturation ≤ 95%.
Trial design
Treatments tested in this trial
- Xenon-129 and Perfluoropropane (19F)
- Magnetic Resonance Imaging
- Lung Clearance Index