- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving 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.
Studieoversikt
Status
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
Studietype
Registrering (Antatt)
Kontakter og plasseringer
Studiekontakt
- Navn: PATRICK VERMERSCH, Pr
- Telefonnummer: 06.33.38.32.60
- E-post: patrick.vermersch@chu-lille.fr
Studiesteder
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-
-
Lille, Frankrike, 59000
- CHU de Lille
-
Ta kontakt med:
- Patrick VERMERSCH, Dr
- Telefonnummer: 06.33.38.32.60
- E-post: patrick.vermersch@chu-lille.fr
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
- Eldre voksen
Tar imot friske frivillige
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
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
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
Intervensjon / Behandling |
|---|---|
|
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
|
There is no treatment allocation.
Participants with MS that initiated treatment with ofatumumab (Kesimpta ®) as per neurologist practice and regardless of the study protocol.
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Slope of serum immunoglobulin G (IgG) levels during ocrelizumab treatment period (minimum 18 months)
Tidsramme: 42 months
|
42 months
|
|
Slope of serum immunoglobulin G (IgG) levels during ofatumumab treatment period (24 months)
Tidsramme: 42 months
|
42 months
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Age at baseline (years)
Tidsramme: Baseline
|
Baseline
|
|
|
Number and percentage of patients with stable serum IgG levels
Tidsramme: 24 months
|
24 months
|
|
|
Number of severe infections occurring during ocrelizumab treatment period prior to switch to ofatumumab
Tidsramme: 18 months
|
18 months
|
|
|
Slope of serum immunoglobulin M (IgM) levels during ocrelizumab treatment period (minimum 18 months)
Tidsramme: 24 months
|
24 months
|
|
|
Number of patients who discontinued ofatumumab before the end of follow-up
Tidsramme: 24 months
|
24 months
|
|
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Number and type of adverse events (AEs) during ofatumumab follow-up period
Tidsramme: 24 months
|
24 months
|
|
|
Disease duration (years since diagnosis)
Tidsramme: Baseline
|
Baseline
|
|
|
Number and percentage of patients with increased serum IgG levels
Tidsramme: 24 months
|
24 months
|
|
|
Slope of serum immunoglobulin M (IgM) levels during ofatumumab treatment period (24 months)
Tidsramme: 24 months
|
24 months
|
|
|
Number of relapses per patient after switch to ofatumumab
Tidsramme: 24 months
|
24 months
|
|
|
Reasons for discontinuation of ofatumumab before the end of follow-up
Tidsramme: 24 months
|
24 months
|
|
|
Number and type of serious adverse events (SAEs) during ofatumumab follow-up period
Tidsramme: 24 months
|
24 months
|
|
|
Distribution of Expanded Disability Status Scale (EDSS) scores after switch to ofatumumab
Tidsramme: 24 months
|
Expanded Disability Status Scale (EDSS): score range 0-10, where higher scores indicate greater neurological disability (worse outcome).
|
24 months
|
|
Sex distribution (male/female, percentage of patients)
Tidsramme: Baseline
|
Baseline
|
|
|
Distribution of Fatigue Severity Scale (FSS) scores after switch to ofatumumab
Tidsramme: 24 months
|
Fatigue Severity Scale (FSS): score range 9-63, where higher scores indicate greater fatigue severity (worse outcome).
|
24 months
|
|
Distribution of Multiple Sclerosis Functional Composite (MSFC) scores after switch to ofatumumab
Tidsramme: 24 months
|
Multiple Sclerosis Functional Composite (MSFC): standardized composite score (z-score), with higher scores indicating better neurological function (better outcome).
|
24 months
|
Samarbeidspartnere og etterforskere
Sponsor
Studierekorddatoer
Studer hoveddatoer
Studiestart (Antatt)
Primær fullføring (Antatt)
Studiet fullført (Antatt)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- 2024_0720
- 2025-A02557-42 (Annen identifikator: [ID-RCB number, ANSM])
Legemiddel- og utstyrsinformasjon, studiedokumenter
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