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.
Studieöversikt
Status
Betingelser
Studietyp
Inskrivning (Beräknad)
Kontakter och platser
Studieorter
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Brussels, Belgien, 1200
- Université Catholique de Louvain
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Kontakt:
- Vincent Van Pesch, MD, PhD
- Telefonnummer: 003227641082
- E-post: vincent.vanpesch@saintluc.uclouvain.be
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Huvudutredare:
- Vincent Van Pesch, MD, PhD
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Testmetod
Studera befolkning
Patients with MS and healthy controls
Beskrivning
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
Hur är studien utformad?
Designdetaljer
- Observationsmodeller: CASE_CONTROL
- Tidsperspektiv: PROSPECTIVE
Kohorter och interventioner
Grupp / Kohort |
Intervention / 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 |
Vad mäter studien?
Primära resultatmått
Resultatmått |
Tidsram |
|---|---|
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Characterization of the phenotype of peripheral CD19⁺CD11c⁺FCRL5⁺ B lymphocytes in patients with MS
Tidsram: 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
Tidsram: Throughout the entire study, approximately during 40 months
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Throughout the entire study, approximately during 40 months
|
Sekundära resultatmått
Resultatmått |
Tidsram |
|---|---|
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Immunological role of CD19⁺CD11c⁺FCRL5⁺ B cells in the pathogenesis of MS.
Tidsram: 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
Tidsram: Throughout the entire study, approximately during 40 months
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Throughout the entire study, approximately during 40 months
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Samarbetspartners och utredare
Sponsor
Publikationer och användbara länkar
Allmänna 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.
Användbara länkar
Studieavstämningsdatum
Studera stora datum
Studiestart (Beräknad)
Primärt slutförande (Beräknad)
Avslutad studie (Beräknad)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Faktisk)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- FCRL5-PBMC
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