Core Cerebrospinal Fluid Biomarker Profile in Anti-Leucine Rich Glioma Inactivated 1 (Anti-LGI1) Encephalitis

NCT ID: NCT04001270

Last Updated: 2019-06-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

24 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-07-15

Study Completion Date

2019-11-15

Brief Summary

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Limbic encephalitis associated with anti leucine-rich glioma inactivated-1 LGI1 antibody (anti-LGI1) usually presents with seizures and progressive disturbance of memory and behavior. But anti-LGI1 associated encephalitis (LGI1-E) could present with a variety of features including an elective cognitive form of the disease, which mimicks a neurodegenerative condition such as Creutzfeld Jakob disease or rapidly progressive Alzheimer disease. In these patients, the appropriate diagnosis could be challenging.

The primary aim of this study is to describe cerebrospinal fluid biomarkers in a cohort of LGI1-E patients as results of these markers are currently not described in LGI1-E. Moreover, patients with LGI1-E often present seizures. At this point, the impact on cerebrospinal fluid biomarkers has not been described in this condition. The secondary aims of this study are to compare cerebrospinal fluid (CSF) biomarkers in LGI1-E patients to these in other neurodegenerative conditions ( e.g. creutzfeld Jakob disease, Alzheimer disease), which are considered as a possible differential diagnosis in these patients. The last aim of this study is to look for correlations between cerebrospinal fluid biomarkers in LGI1-E and clinical data in these patients, especially seizure.

Detailed Description

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Conditions

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Encephalitis LGI1 Antibody Associated Encephalitis

Keywords

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LGI1 encephalitis Biomarkers Cerebrospinal Fluid (CSF) Neurology

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

RETROSPECTIVE

Study Groups

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Patients anti leucine rich glioma inactivated-1 encephalitis

Biomarkers from patients with anti-leucine rich glioma inactivated 1 encephalitis (anti LGI1-E) will be studied. This is a non-interventional study involving biological samples (CSF biomarkers) already stored in biobank repositories. All stored samples were collected as part of the diagnostic process of patients with suspected autoimmune encephalitis, meaning that the standard diagnostic and therapeutic approaches will not be altered in the selected study population.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Presence of well characterized leucine rich glioma inactivated 1 (LGI1) antibody in serum or cerebrospinal fluid (CSF);
* LGI1 antibody associated encephalitis diagnosis according to the international guidelines;
* At least one core CSF biomarkers sample (T-tau, P-tau, AB-1-42) available after disease onset;
* Age at least 18 years old.

Exclusion Criteria

* Absence of clinical data
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hospices Civils de Lyon

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Virginie DESESTRET

Role: PRINCIPAL_INVESTIGATOR

Hospices Civils de Lyon

Central Contacts

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Virginie DESESTRET

Role: CONTACT

Phone: 4 72 11 80 41

Email: [email protected]

Géraldine PICARD

Role: CONTACT

Phone: 4 72 35 58 42

Email: [email protected]

Other Identifiers

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LGI1biom

Identifier Type: -

Identifier Source: org_study_id