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Characterization of Immune-response in Autoimmune Encephalitis and Paraneoplastic Neurological Syndromes

This research focuses on two uncommon brain conditions, Autoimmune Encephalitis (AE) and Paraneoplastic Neurological Syndromes (PNS). Both are caused by the body's own immune system mistakenly attacking the brain, leading to a range of challenging symptoms. While these conditions are rare, a correct diagnosis is crucial because many patients can improve significantly with the right treatment that calms the immune system. The study aims to understand exactly how the immune system causes these problems and why current treatments aren't always effective. Researchers will look for specific markers in blood and spinal fluid that could help diagnose these conditions more accurately, predict which treatments will work best, and ultimately improve care for patients.

At a glance

Status
Recruiting
Sponsor
Hospices Civils de Lyon
Enrolment target
180
Start
01 Feb 2022
Estimated completion
15 Feb 2029

What is this study about?

Imagine your body's defence system, your immune system, suddenly getting confused and attacking healthy parts of your brain. That's essentially what happens in conditions like Autoimmune Encephalitis (AE) and Paraneoplastic Neurological Syndromes (PNS).

These conditions can cause a wide variety of brain-related symptoms, making them hard to diagnose. Doctors often need to rule out many other illnesses, like infections or other brain conditions, before they can identify AE or PNS. Getting the right diagnosis is really important because, even though the symptoms can be severe, many people can get much better with treatments that help calm the immune system.

This study wants to get a clearer picture of how the immune system goes wrong in AE and PNS. Currently, doctors look for certain 'markers' (called antibodies) in a patient's blood or fluid from around their brain and spinal cord to help diagnose these conditions. However, sometimes these markers aren't found, even when doctors strongly suspect AE or PNS. Also, we don't fully understand why some treatments work better than others, or why some people respond well and some don't. By doing special genetic and immune system tests, researchers hope to find new ways to diagnose these conditions more precisely, predict how individual patients will respond to treatment, and discover better ways to help them in the future. The ultimate goal is to offer more effective and tailored treatments.

Key takeaways

  • This study investigates rare brain conditions caused by the immune system.
  • It aims to improve diagnosis and treatment for Autoimmune Encephalitis and Paraneoplastic Syndromes.
  • Participation involves genetic and immune system tests on blood and spinal fluid samples.
  • The study seeks a better understanding, not direct treatment for participants.
  • It's for adults 18+ with neurological conditions, potentially involving 'immune markers'.

Who may be eligible?

This study is for adults aged 18 and over who have a neurological condition, meaning a problem affecting their brain, spine, or nerves.

To be considered for this study, you would either have known antibodies (markers) in your blood or in the fluid around your brain and spinal cord, or doctors might suspect you have one of these conditions even without those specific markers. Everyone who takes part must have enough clinical information available for the research team to review.

Could this study suit you?

Answer these quick questions to see if you may be eligible. This is a guide only — the research team makes the final call.

  1. Are you 18 years old or older?
  2. Do you have a neurological problem (affecting your brain or nerves)?
  3. Have doctors detected special 'markers' (antibodies) in your blood or spinal fluid, or do they suspect you have one of these conditions?
  4. Are your medical records and clinical information available?
  5. Are you willing to provide blood and/or spinal fluid samples for testing?
Answer every question to see your result.

What does participation involve?

The information provided doesn't specify the exact details of what taking part would involve beyond genetic and immunology tests. Generally, this means that your involvement would likely include providing blood samples and, if relevant to your condition, samples of your spinal fluid (obtained through a lumbar puncture, often called a spinal tap). These samples would then be used for genetic and immune system analysis in the laboratory. There is no mention of new medications, extra hospital visits, or a specific duration for participating in this particular study, as it primarily focuses on examining existing biological samples.

Potential risks and benefits

Potential benefits of participating include contributing valuable information that could lead to better diagnoses and treatments for Autoimmune Encephalitis and Paraneoplastic Neurological Syndromes in the future. For you personally, there is no direct immediate benefit expected, as this is a study to understand the conditions better, not a treatment trial. Potential risks typically involve those associated with providing blood samples (like minor bruising or discomfort) and spinal fluid samples (like headaches or pain at the injection site), if required. You have the right to withdraw from the study at any time without giving a reason, and this will not affect your medical care.

Locations (1)

  • Centre de référence des syndromes neurologiques paranéoplasiques et encéphalites autoimmunes
    Verified postcode
    Lyon, France· Recruiting

Common questions

What are Autoimmune Encephalitis and Paraneoplastic Neurological Syndromes?

These are rare brain conditions where your body's immune system mistakenly attacks your brain, causing various symptoms like confusion, seizures, or problems with movement.

Why is this study important?

It aims to help doctors better understand how these conditions develop and find more accurate ways to diagnose them and predict which treatments will work best for individual patients. This could lead to improved care.

Will I receive new treatment in this study?

No, this study is about understanding the conditions through tests of your blood and spinal fluid, not about testing new medications. It's a research study, not a treatment trial.

What does 'genetic and immunology tests' mean?

It means researchers will look at your genes and how your immune system is working by studying samples of your blood and possibly spinal fluid.

Who can take part in this study?

Adults aged 18 and over with a neurological condition, especially those where these autoimmune conditions are suspected or diagnosed, are eligible.

How to find out more

Jerome HONNORAT, MD

Always speak to your GP or specialist before deciding to take part in a study.

Interested in taking part?

Register your interest

Share your details and the research team for "Characterization of Immune-response in Autoimmune Encephalit…" will contact you if you may be eligible. Always speak to your GP before agreeing to take part.

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