心臓外科手術を受ける患者でカングレロとの抗血小板治療のブリッジング:ランダム化制御試験
Dominick J Angiolillo1, Michael S Firstenberg, Matthew J Price
1Department of Cardiology, University of Florida, Jacksonville, USA.
JAMA
|January 19, 2012
まとめ
Cangrelorは,チエノピリジン投与を中止した後,冠動脈バイパス移植 (CABG) 手術を受けた患者の血小板抑制を効果的に維持しました. この静脈内投与による治療は安全なブリッジングオプションを提供し,主要な出血イベントの有意な増加を示さなかった.
科学分野:
- 心臓病学 心臓病学
- 薬理学 薬理学とは
- クリニック・トライアル 臨床試験
背景:
- ティエノピリジンは一般的に処方されていますが,手術が必要な場合は課題となります.
- ガイドラインでは,血栓形成のリスクが増加したにもかかわらず,出血リスクを軽減するために,手術の5〜7日前にチエノピリジンの投与を中止することを推奨しています.
研究 の 目的:
- 冠動脈バイパス移植 (CABG) を待っているチエノピリジンを服用している患者のブリッジ療法として,IVリバーシブルP2Y12阻害剤であるカングレロールを評価する.
主な方法:
- CABGを進行中または待っている患者210人を対象とした前向き,ランダム化,ダブルブラインド,プラセボ対照,マルチセンター試験です.
- 患者はチエノピリジン投与を中止した後,カングレロールまたはプラセボを投与され,治療は手術の1〜6時間前に中止されました.
主要な成果:
- Cangrelorは,プラセボと比較して低血小板反応性 (PRU <240) を達成した患者の割合 (98.8% vs 19.0%) を有意に増加させた.
- 過剰出血の割合は,グループ間で類似していた (11.8%がカングレロと10.4%がプラセボ),大きな出血の有意な違いはなかった.
- 軽度の出血エピソードは,カングレロールで数値的に高かったが,統計的に有意ではなかった.
結論:
- Cangrelorは,心臓外科手術前にチエノピリジン治療を中止した患者の血小板阻害を効果的に維持します.
- これは実行可能なブリッジング戦略として機能し,CABGの文脈でプラセボと比較して大きな出血に関する安全性を実証しています.
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