The Role of the FCRL5 Protein in the Pathophysiology of Multiple Sclerosis and Response to Treatment
Multiple sclerosis (MS) is a chronic inflammatory and neurodegenerative disease of the central nervous system (CNS) and the leading non-traumatic cause of neurological disability in young adults. Historically considered a T-cell-mediated disease, the paradigm for MS has shifted thanks to the efficacy of therapies targeting B cells. The investigators recently identified FCRL5 as a B-cell-specific biomarker that is significantly elevated in the cerebrospinal fluid (CSF) of patients with relapsing-remitting MS and is independently associated with an increased risk of developing new MRI lesions within two years of diagnosis (ref. Deltombe et al., PMID: 41004694). This project aims to further explore FCRL5 as a prognostic biomarker, study the role of FCRL5-expressing B cells in MS pathogenesis and the effects of disease-modifying therapies on these subsets.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Kontakter og lokationer
Studiesteder
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-
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Brussels, Belgien, 1200
- Université Catholique de Louvain
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Kontakt:
- Vincent Van Pesch, MD, PhD
- Telefonnummer: 003227641082
- E-mail: vincent.vanpesch@saintluc.uclouvain.be
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Ledende efterforsker:
- Vincent Van Pesch, MD, PhD
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Patients with MS and healthy controls
Beskrivelse
Inclusion Criteria:
- For MS patients:
- Male or female
- Between 18 and 80 years of age
- Diagnosed with MS according to the most recent McDonald criteria (2025)
- Patients who are about to start a new MS treatment or switch treatments
For healthy volunteers:
- Men or women
- Ages 18 to 80
- Healthy volunteers with no neurological conditions or autoimmune diseases
For participants with Sjögren's syndrome:
- Men or women
- Ages 18 to 80
Exclusion Criteria:
- For MS patients:
- No recent relapse (during the 3 months prior to study enrollment)
- Patients treated with corticosteroids (during the 3 months prior to study enrollment)
- Patients receiving another immunosuppressive therapy unrelated to MS
- Inability to sign the informed consent form
For healthy volunteers:
Subjects not receiving immunosuppressive therapy
For subjects with Sjögren's syndrome:
Subjects not receiving immunosuppressive therapy
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Observationsmodeller: CASE_CONTROL
- Tidsperspektiver: PROSPECTIVE
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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A group of patients with MS
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A blood test every 6 months for MS patients : Day1, Month 6, Month 12 and Month 24 |
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A group of healthy volunteers
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A single blood draw for the healthy volunteer |
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A group of volunteers with Sjögren's syndrome
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A single blood draw for the group of volunteers with Sjögren's syndrome |
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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Characterization of the phenotype of peripheral CD19⁺CD11c⁺FCRL5⁺ B lymphocytes in patients with MS
Tidsramme: Throughout the entire study, approximately during 40 months
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Throughout the entire study, approximately during 40 months
|
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Characterization of the activity of peripheral CD19⁺CD11c⁺FCRL5⁺ B lymphocytes in patients with MS
Tidsramme: Throughout the entire study, approximately during 40 months
|
Throughout the entire study, approximately during 40 months
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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Immunological role of CD19⁺CD11c⁺FCRL5⁺ B cells in the pathogenesis of MS.
Tidsramme: Throughout the entire study, approximately during 40 months
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Throughout the entire study, approximately during 40 months
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Correlations in the participants' clinical, biological, radiological profiles and the immunological characteristics
Tidsramme: Throughout the entire study, approximately during 40 months
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Throughout the entire study, approximately during 40 months
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Publikationer og nyttige links
Generelle publikationer
- Reich DS, Lucchinetti CF, Calabresi PA. Multiple Sclerosis. N Engl J Med. 2018 Jan 11;378(2):169-180. doi: 10.1056/NEJMra1401483. No abstract available.
- Deltombe M, Stolting A, Maggi P, van Pesch V. FCRL5, a B-Cell Marker With Novel Diagnostic and Prognostic Value for Multiple Sclerosis. Neurol Neuroimmunol Neuroinflamm. 2025 Nov;12(6):e200485. doi: 10.1212/NXI.0000000000200485. Epub 2025 Sep 26.
- Nutma E, Willison H, Martino G, Amor S. Neuroimmunology - the past, present and future. Clin Exp Immunol. 2019 Sep;197(3):278-293. doi: 10.1111/cei.13279. Epub 2019 Mar 11.
- Cree BAC, Arnold DL, Chataway J, Chitnis T, Fox RJ, Pozo Ramajo A, Murphy N, Lassmann H. Secondary Progressive Multiple Sclerosis: New Insights. Neurology. 2021 Aug 24;97(8):378-388. doi: 10.1212/WNL.0000000000012323. Epub 2021 Jun 4.
Hjælpsomme links
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- FCRL5-PBMC
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
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