プラスグレルは,ST上昇心筋梗塞 (TRITON-TIMI 38) のために皮膚経冠動脈介入を受けている患者のクロピドグレルと比較:ダブルブラインド,ランダム化制御試験
Gilles Montalescot1, Stephen D Wiviott, Eugene Braunwald
1Institute of Cardiology, INSERM U856, Université Paris 6, Pitié-Salpêtrière Hospital (AP-HP), Paris, France.
Lancet (London, England)
|March 3, 2009
まとめ
プラスグレルは,クロピドグレルと比較して,皮経冠動脈干渉 (PCI) を受けているST上昇心筋梗塞 (STEMI) 患者において,異動性イベントを有意に減少させた. この強力な抗血小板治療は,主要な出血イベントの有意な増加なしに,改善された有効性を示しました.
科学分野:
- 心臓病学 心臓病学
- 薬理学 薬理学とは
背景:
- ST上昇心筋梗塞 (STEMI) の管理には,ステントを設置した機械的再注血がしばしば含まれます.
- ダブル抗血小板療法,典型的にはアスピリンとクロピドグレル,はPCI後の標準治療である.
- プラスグレルは,クロピドグレルに対する強力で迅速な代替品です.
研究 の 目的:
- PCIを受けるSTEMI患者におけるプラスグルとクロピドグレルの有効性と安全性を比較する.
- この患者集団におけるクロピドグレルの潜在的な代替品としてプラズグレルを評価する.
主な方法:
- 30カ国の707カ所で3534人のSTEMI患者を対象としたダブルブラインド,ランダム化制御試験です.
- 参加者は,プラスグリル (60 mg 負荷,10 mg 維持) またはクロピドグレル (300 mg 負荷,75 mg 維持) を投与された.
- 主要エンドポイント:心血管疾患による死亡,非致死性心筋梗塞,または非致死性脳卒中の複合,最大15ヶ月まで評価.
主要な成果:
- プラスグレルは,30日 (6.5%対9.5%,p=0.0017) と15ヶ月 (10.0%対12.4%,p=0.0221) のプライマリエンドポイントを有意に低下させた.
- 緊急の標的血管再血管化およびステント血栓症を含む重要な二次エンドポイントも,プラスグレルで有意に減少しました.
- CABG手術とは無関係な重度の出血の有意な違いは観察されなかったが,CABG後の重度の出血は,プラスグルで増加した.
結論:
- プラスグレルは,PCIを受けているSTEMI患者における不血性イベントの予防において,クロピドグレルよりも優れた有効性を示しています.
- この研究では,プラズグレルはSTEMI患者にとってより効果的な選択肢であり,CABG後の出血を除いて,比較可能な全般的な出血リスクプロファイルを持っています.
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