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Xenon (129Xe)

Researchers are exploring an innovative imaging technique using hyperpolarized Xenon-129 (129Xe) in Magnetic Resonance Imaging (MRI) to study progressive fibrosing interstitial lung diseases. This non-invasive method aims to identify early signs of pulmonary fibrosis and assess its effects on cardiac function. The study also seeks to evaluate risk factors and therapeutic responses to anti-fibrotic drugs, potentially revolutionizing how we diagnose and monitor these challenging lung conditions.

Table of Contents

What is XENON (129XE)?

XENON (129XE) is a special form of xenon gas used as an imaging agent in medical research[1]. It’s not a traditional medication that treats diseases directly, but rather a tool doctors use to get better pictures of what’s happening inside your lungs. The technical name for this type of imaging agent is a contrast agent, which helps make certain parts of your body show up more clearly on medical scans.

Medical Conditions XENON (129XE) is Used For

XENON (129XE) is being studied for use in patients with a group of lung diseases called Progressive Fibrosing Interstitial Lung Diseases (ILDs)[1]. These are conditions where the lungs become scarred over time, making it harder to breathe. Some examples include:

  • Idiopathic Pulmonary Fibrosis (IPF): A type of lung disease where the cause of the scarring is unknown
  • Other types of fibrotic ILDs that get worse over time

The goal is to use XENON (129XE) to help doctors better understand and monitor these diseases.

How XENON (129XE) Works

XENON (129XE) is used in a special type of imaging called Magnetic Resonance Imaging (MRI)[1]. Here’s how it works:

  1. The xenon gas is made into a special form called “hyperpolarized,” which makes it show up very clearly on MRI scans.
  2. When you breathe in the gas, it travels into your lungs and even dissolves slightly into your blood and tissues.
  3. The MRI machine can then create detailed images of your lungs, showing how well air is flowing and how the gas is moving into your blood.

This gives doctors a unique view of how your lungs are functioning, which isn’t possible with regular MRI or CT scans.

How XENON (129XE) is Administered

XENON (129XE) is given as an inhalation solution, which means you breathe it in[1]. The amount you inhale can vary, but typically ranges from 400 ml to 1000 ml (about 1/2 to 1 liter). You’ll be asked to hold your breath for a short time (at least 20 seconds) while the images are taken.

Who Can Use XENON (129XE)?

XENON (129XE) is currently being studied in specific groups of people. You might be eligible if you:

  • Have been diagnosed with a progressive fibrosing interstitial lung disease
  • Are prescribed anti-fibrotic treatment (medications to slow down lung scarring)
  • Can understand and participate in the study
  • If you’re a woman of childbearing age, you must not be pregnant

Safety Considerations

While XENON (129XE) is generally considered safe, there are some people who shouldn’t use it[1]:

  • People with certain metal implants or devices (like pacemakers) that aren’t safe for MRI
  • Those who are claustrophobic (fear of enclosed spaces)
  • People who can’t hold their breath for at least 20 seconds
  • Anyone allergic to xenon
  • Those with ongoing respiratory infections

It’s important to discuss any health conditions or concerns with your doctor before participating in a study using XENON (129XE).

Research Goals and Potential Benefits

The main goals of research using XENON (129XE) include[1]:

  1. Finding early signs of pulmonary fibrosis (lung scarring)
  2. Monitoring how lung diseases progress over time
  3. Evaluating how well anti-fibrotic treatments are working
  4. Assessing how lung disease might be affecting heart function

By providing more detailed information about lung function, XENON (129XE) imaging could potentially help doctors:

  • Diagnose lung diseases earlier
  • Make more informed decisions about treatment
  • Better understand how treatments are working

This research is still ongoing, and XENON (129XE) is not yet widely available outside of clinical trials. However, it represents an exciting new tool in the field of lung disease research and treatment.

Aspect Details
Study Title Hyperpolarized 129-Xenon MRI in Fibrosing Interstitial Lung Disease
Main Objective To investigate non-invasive imaging for identifying early signs of pulmonary fibrosis and cardiac dysfunction in fibrosing interstitial lung disease patients
Study Drug Hyperpolarized Xenon-129 (129Xe) inhalation solution
Administration Method Inhalation
Dosage Forms 400 ml, 500 ml, 650 ml, 800 ml, and 1000 ml
Primary Endpoints MR xenon ventilation and dissolved parameters, pulmonary function tests, HRCT parameters, patient-reported symptoms
Secondary Endpoints Regional perfusion changes, myocardial strain and fibrosis, late contrast enhancement
Key Inclusion Criteria Diagnosed with IPF or fibrotic ILD, prescribed anti-fibrotic treatment, cognitively able to participate
Key Exclusion Criteria MRI contraindications, inability to hold breath for 20 seconds, Xenon allergy, ongoing respiratory infections

FAQ

  • What is hyperpolarized Xenon-129 MRI? Hyperpolarized Xenon-129 MRI is an advanced imaging technique that uses a special form of xenon gas as a contrast agent. When inhaled, it allows for detailed visualization of lung structure and function, providing valuable information about lung diseases.
  • Who can participate in this clinical trial? Participants must be diagnosed with IPF (Idiopathic Pulmonary Fibrosis) or fibrotic ILD (Interstitial Lung Disease) meeting PPF (Progressive Pulmonary Fibrosis) criteria and prescribed anti-fibrotic treatment. They must be cognitively able to understand and participate in the study. Pre-menopausal women must confirm they are not pregnant.
  • Are there any reasons why someone cannot participate in this study? Yes, there are several exclusion criteria. These include contraindications for MRI (such as having a pacemaker or certain metal implants), inability to hold breath for at least 20 seconds, allergy to Xenon, and ongoing respiratory infections. People with severe kidney problems or previous adverse reactions to gadolinium contrast are also excluded.
  • What will the study measure? The study will primarily measure MR xenon ventilation and dissolved parameters, changes in pulmonary function tests, High-Resolution Computed Tomography (HRCT) parameters, and patient-reported symptoms. Secondary measurements include regional perfusion changes and evidence of myocardial strain and fibrosis.
  • How is the Xenon-129 administered in this study? Xenon-129 is administered as an inhalation solution. The study uses various volumes (400 ml, 500 ml, 650 ml, 800 ml, and 1000 ml) of hyperpolarized Xenon-129 gas, which participants inhale during the MRI procedure.

Ongoing Clinical Trials on Xenon (129Xe)

  • Study on the Use of Hyperpolarized Xenon (129Xe) and Gadobutrol for Imaging in Patients with Progressive Fibrosing Interstitial Lung Diseases

    Not recruiting

    2 1 1 1
    Investigated diseases:
    Investigated drugs:
    Denmark

Glossary

  • Hyperpolarized Xenon-129 (129Xe): A special form of xenon gas used as a contrast agent in MRI. It allows for detailed imaging of lung structure and function.
  • Fibrosing Interstitial Lung Disease: A group of lung disorders characterized by inflammation and scarring (fibrosis) of the lung tissues, which can lead to breathing difficulties.
  • Pulmonary Fibrosis: A condition where lung tissue becomes scarred and thickened, making it harder for the lungs to work properly.
  • Anti-fibrotic Drugs: Medications designed to slow down or prevent the scarring process in the lungs.
  • MRI (Magnetic Resonance Imaging): A medical imaging technique that uses strong magnetic fields and radio waves to produce detailed images of the inside of the body.
  • HRCT (High-Resolution Computed Tomography): A specialized CT scan that provides very detailed images of the lungs, useful for diagnosing and monitoring lung diseases.
  • Gadolinium: A contrast agent commonly used in MRI scans to enhance the visibility of certain tissues or blood vessels.
  • eGFR (estimated Glomerular Filtration Rate): A test used to check how well the kidneys are working by estimating how much blood passes through the glomeruli each minute.
  • Myocardial Strain: A measure of heart muscle deformation, which can indicate how well the heart is functioning.
  • Late Contrast Enhancement: A technique used in MRI to visualize areas of scarring or damage in the heart muscle.

References

  1. http://clinicaltrials.eu/trial/study-on-the-use-of-hyperpolarized-xenon-129xe-and-gadobutrol-for-imaging-in-patients-with-progressive-fibrosing-interstitial-lung-diseases/