NCT06066723 · University of North Carolina, Chapel Hill
19F MRI in Healthy Children and Children With Mild Cystic Fibrosis Lung Disease
What this study is about
This study capitalizes on the emerging technology of 19F MRI, using conventional 'thermally' polarized perfluorinated gas (perfluoropropane, or PFP) mixed with oxygen and studied with magnetic resonance imaging (MRI) to visualize ventilation. This technique has not been studied in children.
View original scientific description
This study capitalizes on the emerging technology of 19F MRI, using conventional 'thermally' polarized perfluorinated gas (perfluoropropane, or PFP) mixed with oxygen and studied with magnetic resonance imaging (MRI) to visualize ventilation. This technique has not been studied in children. Children and adolescents (6-17 years old) with cystic fibrosis (CF) who have normal spirometry will undergo 19F MRI with the inhalation of an inert contrast gas to study ventilation. Comparisons will be made to a cohort of healthy children (6-17 years old) who will perform the same measures. The primary outcome measure is the feasibility of conducting these studies in the pediatric population. Parallel performance of multiple breath nitrogen washout (MBW) and spirometry will be used to compare the sensitivity of these outcomes to the presence of mild lung disease in these children. Finally, the investigators will compare data obtained during standard breath holds with a novel "free-breathing" technique that will eliminate the need for breath holds during MRI acquisition.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- 6-17 years old
- Non-smoker and non-vaper
- Cystic Fibrosis (CF) Group: must have a diagnosis of CF
- No use of supplemental oxygen
- They must be able to perform spirometry and have stable lung function (within 10% personal best in the last 6 months) and no exacerbations within the past 4 weeks
- Baseline forced expiratory volume in 1 second (FEV1) \>80% with ratio of the forced expiratory volume in the first one second to the forced vital capacity of the lung (FEV1:FVC) ratio \>0.7
Exclusion criteria
- Healthy volunteers: with any history of chronic lung disease (i.e. asthma)
- Active or former smoker with less than 1 year of quitting
- Unable to undergo an MRI of the lungs and chest because of contraindications, including:
- Injury to the eye involving a metallic object
- Injury to the body involving a metallic object
- Presence of an implanted drug infusion device that is not MRI safe
- Bone growth of fusion simulator
- Presence of cochlear, otologic, or ear implant
- Shunt (spinal or intraventricular)
- Any implant held in place by magnet
- Claustrophobia
- Unable to tolerate the inhalation of the gas mixture
- Facial hair preventing a tight fit of the mask used in the study
- Changes in medication that may affect CF lung disease or lung function in the past 28 days, including experimental therapies
Where
- Chapel Hill, North Carolina
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 2, 2026 · Source of record for eligibility and locations