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.
調査の概要
詳細な説明
研究の種類
入学 (推定)
連絡先と場所
研究連絡先
- 名前:PATRICK VERMERSCH, Pr
- 電話番号:06.33.38.32.60
- メール:patrick.vermersch@chu-lille.fr
研究場所
-
-
-
Lille、フランス、59000
- CHU de Lille
-
コンタクト:
- Patrick VERMERSCH, Dr
- 電話番号:06.33.38.32.60
- メール:patrick.vermersch@chu-lille.fr
-
-
参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
サンプリング方法
調査対象母集団
説明
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
研究計画
研究はどのように設計されていますか?
デザインの詳細
コホートと介入
グループ/コホート |
介入・治療 |
|---|---|
|
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.
|
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
時間枠 |
|---|---|
|
Slope of serum immunoglobulin G (IgG) levels during ocrelizumab treatment period (minimum 18 months)
時間枠:42 months
|
42 months
|
|
Slope of serum immunoglobulin G (IgG) levels during ofatumumab treatment period (24 months)
時間枠:42 months
|
42 months
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Age at baseline (years)
時間枠:Baseline
|
Baseline
|
|
|
Number and percentage of patients with stable serum IgG levels
時間枠:24 months
|
24 months
|
|
|
Number of severe infections occurring during ocrelizumab treatment period prior to switch to ofatumumab
時間枠:18 months
|
18 months
|
|
|
Slope of serum immunoglobulin M (IgM) levels during ocrelizumab treatment period (minimum 18 months)
時間枠:24 months
|
24 months
|
|
|
Number of patients who discontinued ofatumumab before the end of follow-up
時間枠:24 months
|
24 months
|
|
|
Number and type of adverse events (AEs) during ofatumumab follow-up period
時間枠:24 months
|
24 months
|
|
|
Disease duration (years since diagnosis)
時間枠:Baseline
|
Baseline
|
|
|
Number and percentage of patients with increased serum IgG levels
時間枠:24 months
|
24 months
|
|
|
Slope of serum immunoglobulin M (IgM) levels during ofatumumab treatment period (24 months)
時間枠:24 months
|
24 months
|
|
|
Number of relapses per patient after switch to ofatumumab
時間枠:24 months
|
24 months
|
|
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Reasons for discontinuation of ofatumumab before the end of follow-up
時間枠:24 months
|
24 months
|
|
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Number and type of serious adverse events (SAEs) during ofatumumab follow-up period
時間枠:24 months
|
24 months
|
|
|
Distribution of Expanded Disability Status Scale (EDSS) scores after switch to ofatumumab
時間枠: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)
時間枠:Baseline
|
Baseline
|
|
|
Distribution of Fatigue Severity Scale (FSS) scores after switch to ofatumumab
時間枠: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
時間枠:24 months
|
Multiple Sclerosis Functional Composite (MSFC): standardized composite score (z-score), with higher scores indicating better neurological function (better outcome).
|
24 months
|
協力者と研究者
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- 2024_0720
- 2025-A02557-42 (その他の識別子:[ID-RCB number, ANSM])
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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