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- Klinische proef NCT07625800
Switch to Ofatumumab and Level of Immunoglobulins (SOLI)
This real-life study aims to describe IgG levels after switching from ocrelizumab 600 mg IV every 6 to 8 months in Patients with Multiple Sclerosis (PwMS) to ofatumumab 20 mg SC every month and showing a decreasing level of IgG during treatment by ocrelizumab in real life practice in France over 24 months of follow-up.
The primary objective is therefore to determine if the downward trend of IgG observed during ocrelizumab treatment is modified after a switch to ofatumumab, in PwMS treated during at least 18 months of ocrelizumab in real life practice, over 24 months of follow-up.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Studietype
Inschrijving (Geschat)
Contacten en locaties
Studiecontact
- Naam: PATRICK VERMERSCH, Pr
- Telefoonnummer: 06.33.38.32.60
- E-mail: patrick.vermersch@chu-lille.fr
Studie Locaties
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Lille, Frankrijk, 59000
- CHU de Lille
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Contact:
- Patrick VERMERSCH, Dr
- Telefoonnummer: 06.33.38.32.60
- E-mail: patrick.vermersch@chu-lille.fr
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- Adult patients (≥ 18 years old) who had been treated with ocrelizumab for a relapsing form of Multiple Sclerosis according to the ocrelizumab marketing authorization (MA) treatment regimen for at least 18 months.
- Patients with a decrease of IgG at a minimum of two consecutive dosages (around six months apart) during ocrelizumab treatment*.
- Patients already switched or switching from ocrelizumab to ofatumumab treatment (decision independent from the study*).
- Patients agreeing to participate to the study.
Able to provide their non-opposition
- At the discretion of the investigator, if a benefit for patients is expected based on their experience and depending on patient's characteristics
Exclusion Criteria:
- Patients with ocrelizumab dose spacing > 8 months in the last 18 months before switch
- Patient who underwent an immunoglobulin supplementation therapy within 18 months before the switch
- Ongoing or planned pregnancy
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Cohorten en interventies
Groep / Cohort |
Interventie / Behandeling |
|---|---|
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Ofatumumab
Adult patients (≥18 years) with relapsing multiple sclerosis treated with ocrelizumab for at least 18 months and already switched or switching from ocrelizumab to ofatumumab treatment
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There is no treatment allocation.
Participants with MS that initiated treatment with ofatumumab (Kesimpta ®) as per neurologist practice and regardless of the study protocol.
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
|---|---|
|
Slope of serum immunoglobulin G (IgG) levels during ocrelizumab treatment period (minimum 18 months)
Tijdsspanne: 42 months
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42 months
|
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Slope of serum immunoglobulin G (IgG) levels during ofatumumab treatment period (24 months)
Tijdsspanne: 42 months
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42 months
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Age at baseline (years)
Tijdsspanne: Baseline
|
Baseline
|
|
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Number and percentage of patients with stable serum IgG levels
Tijdsspanne: 24 months
|
24 months
|
|
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Number of severe infections occurring during ocrelizumab treatment period prior to switch to ofatumumab
Tijdsspanne: 18 months
|
18 months
|
|
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Slope of serum immunoglobulin M (IgM) levels during ocrelizumab treatment period (minimum 18 months)
Tijdsspanne: 24 months
|
24 months
|
|
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Number of patients who discontinued ofatumumab before the end of follow-up
Tijdsspanne: 24 months
|
24 months
|
|
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Number and type of adverse events (AEs) during ofatumumab follow-up period
Tijdsspanne: 24 months
|
24 months
|
|
|
Disease duration (years since diagnosis)
Tijdsspanne: Baseline
|
Baseline
|
|
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Number and percentage of patients with increased serum IgG levels
Tijdsspanne: 24 months
|
24 months
|
|
|
Slope of serum immunoglobulin M (IgM) levels during ofatumumab treatment period (24 months)
Tijdsspanne: 24 months
|
24 months
|
|
|
Number of relapses per patient after switch to ofatumumab
Tijdsspanne: 24 months
|
24 months
|
|
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Reasons for discontinuation of ofatumumab before the end of follow-up
Tijdsspanne: 24 months
|
24 months
|
|
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Number and type of serious adverse events (SAEs) during ofatumumab follow-up period
Tijdsspanne: 24 months
|
24 months
|
|
|
Distribution of Expanded Disability Status Scale (EDSS) scores after switch to ofatumumab
Tijdsspanne: 24 months
|
Expanded Disability Status Scale (EDSS): score range 0-10, where higher scores indicate greater neurological disability (worse outcome).
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24 months
|
|
Sex distribution (male/female, percentage of patients)
Tijdsspanne: Baseline
|
Baseline
|
|
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Distribution of Fatigue Severity Scale (FSS) scores after switch to ofatumumab
Tijdsspanne: 24 months
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Fatigue Severity Scale (FSS): score range 9-63, where higher scores indicate greater fatigue severity (worse outcome).
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24 months
|
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Distribution of Multiple Sclerosis Functional Composite (MSFC) scores after switch to ofatumumab
Tijdsspanne: 24 months
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Multiple Sclerosis Functional Composite (MSFC): standardized composite score (z-score), with higher scores indicating better neurological function (better outcome).
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24 months
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Medewerkers en onderzoekers
Sponsor
Studie record data
Bestudeer belangrijke data
Studie start (Geschat)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- 2024_0720
- 2025-A02557-42 (Andere identificatie: [ID-RCB number, ANSM])
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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