FUS-ALSに対するアンチセンセスオリゴヌクレオチドジャシフーセン:研究者主催の多中心型オープンケースシリーズ
Neil A Shneider1, Matthew B Harms1, Vlad A Korobeynikov1
1Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA.
Lancet (London, England)
|May 25, 2025
まとめ
Jacifusenは,神経変性マーカーとFUSタンパク質のレベルを低下させることで,FUS-ALSの治療に希望を示しています. アミオトロフィック横筋硬化症に対するこの潜在的な治療法のさらなる評価は進行中です.
科学分野:
- 神経科学
- 遺伝学
- 薬理学について
背景:
- サルコマに融合した (FUS) 遺伝子の病原性変異は,しばしば機能増強メカニズムを含むアミオトロフィック横筋硬化症 (ALS) を引き起こします.
- 抗意味オリゴヌクレオチドであるJacifusenは,FUS前mRNAを標的とし,FUS- ALSに対する臨床前および早期の研究で潜在性を示しています.
- この研究は,拡張されたアクセスプログラムを通じて,FUS- ALS患者におけるジャシフーゼンの安全性と有効性をさらに評価することを目的とした.
研究 の 目的:
- FUS- ALSの患者に対して,内投与のジャシフーゼンの安全性と耐容性を評価する.
- 脳脊髄液 (CSF) の神経繊維光鎖 (NfL) レベルを含む神経変性生物マーカーに対するジャシフーセンの影響を評価する.
- FUS- ALSにおける機能的衰弱とFUSタンパク質病理学に対するジャシフーゼンの潜在的な臨床効果を調査する.
主な方法:
- FUSの変種とモーターニューロン疾患の症状を持つ12人の参加者を含む拡張アクセスプログラムです.
- 毎月120mgまで増加する投与量.
- 安全性評価には,有害事象のモニタリングとCSF分析が含まれ,有効性はNfLレベルとALSFRS- Rスコアで測定され,死後のCNS組織分析が行われました.
主要な成果:
- 背中の痛みや頭痛などの管理可能な有害事象で,一般的によく耐えた.
- 治療の6ヶ月後,CSFのNfL濃度は82. 8%まで低下し,軸索損傷の減少を示した.
- ほとんどの被験者は機能的低下を経験したが,1人は有意な回復を示し,もう1人は改善した電気生理学的発見で無症状のままだった.死後の分析では,FUSタンパク質のレベルが低下したことを明らかにした.
結論:
- この発見は,ジャシフーセンがFUS-ALSの潜在的に安全で効果的な治療法であることを示唆しています.
- Jacifusenは神経変性症の重要なバイオマーカーの減少を示し,一部の患者では有望な臨床信号を示しました.
- jacifusenの有効性のさらなる評価は必要であり,現在進行中の臨床試験で調査されています.
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