New MRI breath test could spot lung transplant rejection earlier
NCT ID NCT03603899
First seen Jun 24, 2026 · Last updated Sep 18, 2026 · Updated 3 times
Summary
This study tested a new MRI technique using inhaled hyperpolarized xenon gas to detect early signs of bronchiolitis obliterans syndrome (BOS), a common form of chronic rejection after lung transplant. Only 3 participants were involved, and the goal was to see if the imaging could spot ventilation defects. The research is very early and focused on improving diagnosis, not treatment.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- hyperpolarized 129Xenon gas
- What this could lead to
- If successful, this imaging method could allow earlier detection of bronchiolitis obliterans in lung transplant patients, potentially improving outcomes through timely intervention.
- What could go wrong
- This is a very small, early-phase study (only 3 participants) focused on developing imaging techniques, not testing a treatment. The method may not prove sensitive enough or may not work in larger, more diverse groups.
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.
- Phase
-
Phase 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
-
3 people
The number who actually took part.
- Started
-
Sep 2020
- Finished
-
May 2024
- Lead sponsor
-
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.
- Ages
-
6 years and older
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Lung Transplantation within the last 10 years or being assessed for possible lung transplantation. * Participant must be able to hold their breath for up to 16 seconds. Exclusion Criteria: * Standard MRI exclusion criteria * Bleeding disorders * Participant is claustrophobic or otherwise unable to tolerate the imaging * Pregnancy or positive pregnancy test * Symptoms of respiratory infection within the past two weeks. * Baseline oximetry at MRI visit of less than 95% on room air or less than 95% on a previously prescribed dosage of oxygen delivered by nasal cannula.
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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.
Contacts and locations
Locations
-
Cincinnati Children's Hospital Medical Center
Cincinnati, Ohio, 45229, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- New study aims to detect lung damage earlier in young transplant patients
- Can lung MRI replace CT scans for detecting a serious Post-Transplant lung condition?
- Inhaled drug aims to save transplanted lungs from silent threat
- New hope for lung scarring after transplant: belumosudil trial launches
- Inhaled cyclosporine aims to halt lung transplant rejection