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NCT07788573Not yet recruiting

The Role of the FCRL5 Protein in the Pathophysiology of Multiple Sclerosis and Response to Treatment

Source: ClinicalTrials.gov · Last updated 4 Nov 2026

Brief summary (registry, in English)

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.

Status (registry)
Not yet recruiting
Study type
Observational
Enrollment
90 (estimated)
First submitted
19 Aug 2026
Start date
Dec 2026
Primary completion date
31 Dec 2029
Lead sponsor
Université Catholique de Louvain
NCT number
NCT07788573

What you commit to

  • Study type: Observational
  • Planned participants: 90
  • From Dec 2026 to the primary completion date, 31 Dec 2029
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • 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

Other

  • For MS patients:

Who the study is looking for

  • 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

Age in the registry: 18 years to 80 years · Sex: All · Accepts healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Université Catholique de Louvain
Coordinator of this site? Confirm its status
BrusselsBelgiumUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.