チロシンキナーゼ阻害剤スニチニブと関連した心臓毒性
Tammy F Chu1, Maria A Rupnick, Risto Kerkela
1Department of Cardiology, Children's Hospital Boston and Harvard Medical School, Boston, MA 02115, USA.
Lancet (London, England)
|December 18, 2007
まとめ
消化器系ストロマル腫瘍に対するスニチニブ治療は,心不全や左心室噴出分数 (LVEF) の減少を含む心血管疾患を引き起こす可能性があります. スニチニブを投与している患者は,高血圧とLVEFの変化を注意深くモニタリングすることが推奨されます.
科学分野:
- 心血管研究に関する研究.
- 腫瘍学 腫瘍学
- 薬理学 薬理学とは
背景:
- スニチニブは,転移性がんの生存期間を延長する承認されたチロシンキナーゼ阻害剤です.
- Sunitinibの心臓安全性プロファイルに関する懸念があります.
- この研究は,スニチニブで治療された転移性胃腸筋腫瘍 (GIST) 患者の心血管リスクを評価しています.
研究 の 目的:
- 転移性GIST患者のスニチニブに関連した心血管リスクの評価.
- 左心室噴出分数 (LVEF) と血圧に対するスニチニブの影響を調査する.
- サニチニブ誘発の心臓効果の潜在的メカニズムを探求する.
主な方法:
- 75人のイマチニブ耐性転移性GIST患者における心血管イベントの遡及レビュー.
- 複合心血管エンドポイントの分析:心臓死,心筋梗塞,心不全.
- ネズミの心筋細胞とマウスを用いたインビトロおよびインビボ研究で,心臓の毒性メカニズムを調査した.
主要な成果:
- 患者の11%が心血管疾患を発症し,8%が閉塞性心不全を発症した.
- 承認された用量を投与した患者の28%は,少なくとも10%のLVEFの減少を示した.
- 47%の患者が高血圧を発症し,スニチニブが誘発した心筋細胞アポトーシスとミトコンドリア損傷.
結論:
- 左心室機能不全は,直接の心筋細胞毒性および高血圧に起因する可能性があります.
- スニチニブを投与している患者は,高血圧とLVEFの低下を注意深く監視する必要があります.
- 以前から心疾患がある人は特に注意が必要です.
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