ベンラリズマブまたはメポリズマブで治療されたポリアンゲイチスによるエオシノフィル・グランウロマトーシスの患者における経口グルココルチコイドの中止と寛解の達成
Michael E Wechsler1, Nancy Agmon-Levin2, David R W Jayne3
1National Jewish Health, Denver, Colorado.
ACR open rheumatology
|August 31, 2025
まとめ
ベンラリズマブは,メポリズマブと比較して,エオシノフィル粒球症の患者で,経口用グルココルチコイドの完全寛解率が高かった. これは,抗IL- 5/ R療法を追加することで,EGPAにおける治療反応が改善される可能性があることを示唆している.
科学分野:
- 免疫学
- リウマトロジ
- 臨床試験
背景:
- エオシノフィル・グラヌロマトーシスとポリヤングライト (EGPA) は珍しい自己免疫疾患である.
- 現在の治療は,しばしば重大な副作用を持つ口服用グルココルチコイド (OGC) を含む.
- 特にOGCなしで寛解を達成し維持することは,重要な治療目標です.
研究 の 目的:
- EGPA患者の寛解の厳格な定義を達成するために,ベンラリズマブとメポリズマブの有効性を比較する.
- OGCからの寛解を達成し,再発のない患者の割合を評価する.
主な方法:
- MANDARA研究は,140人のEGPA患者をランダムにベンラリズマブまたはメポリズマブを52週間投与した.
- 寛解は,OGC投与量0 mg/ dayのBVASと,第36週と第48週に再発がないと定義された.
- 患者さんは,初期にOGCを投与され,同時に免疫抑制剤を投与されていた可能性があります.
主要な成果:
- ベンラリズマブはOGCからの寛解を23. 5%の患者で達成し,メポリズマブでは11. 1%であった (P=0. 042).
- ベンラリズマブを投与した患者の割合は,この厳しい寛解のエンドポイントを達成した.
- ほとんどの患者は治療から36週間以内に寛解した.
結論:
- ベンラリズマブとメポリズマブは,EGPA患者にOGCを中止させ,再発を予防することができます.
- ベンラリズマブは,この試験でOGCフリー寛解の達成において,統計的に有意な優位性を示した.
- 標準的なEGPA治療に抗IL- 5/ R療法を加えると,患者の治療結果が改善される可能性があります.
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