リバロキサバン+アスピリン 対 アスピリン 単独 患者 経皮動脈干渉 (COMPASS- PCI)
Kevin R Bainey1, Robert C Welsh1, Stuart J Connolly2
1Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (K.R.B., R.C.W.).
Circulation
|March 18, 2020
まとめ
慢性冠動脈症候群の患者では,リバロキサバンとアスピリンの二重経路阻害 (DPI) は,前回の皮膚経冠動脈介入 (PCI) にかかわらず,重大な心血管不良事件 (MACE) と死亡率を著しく減少させた. しかし,DPIは大きな出血のリスクを増加させました.
科学分野:
- 心血管医学
- 薬理学について
- 臨床試験
背景:
- COMPASS試験では,リバロキサバンとアスピリンの二重経路阻害 (DPI) が,慢性冠動脈症候群または外周動脈疾患の患者における主要な有害心血管疾患 (MACE) と死亡率の減少に有効であることが示されました.
- 経皮冠動脈介入 (PCI) の歴のある患者におけるDPIの有効性および安全性は,COMPASS試験の初回結果によって取り扱われていなかった.
研究 の 目的:
- 以前PCIを受けた慢性冠動脈症候群の患者で,DPI (リバロキサバンとアスピリン) の有効性と安全性をアスピリン単独と比較する.
- 前回のPCIのタイミングがDPI治療の結果に与える影響を分析する.
主な方法:
- 慢性冠動脈症候群の患者を中心に,COMPASS試験の予め指定されたサブグループ分析が行われました.
- DPIで治療された患者とアスピリン単独で治療された患者のアウトカムを比較し,特に前回のPCIとそれ以外のサブグループを調査した.
- 前回のPCI患者の場合,治療効果は介入から経過した時間に基づいて評価されました.
主要な成果:
- 前回のPCIを受けた患者では,DPIはアスピリン単独投与と比較してMACE (4. 0% 対 5. 5%) と死亡率 (2. 5% 対 3. 5%) を著しく低下させ,PCI以降の期間に関係なく一貫した効果が観察されました.
- これらの効果は,前回のPCIのない患者で反映され,両方のグループで一貫した有効性を示した (MACE: 4. 4%対5. 7%;死亡率: 4. 1%対5. 0%).
- DPIは,両方の患者群で重度の出血のリスク増加と関連していた (PCI: 3. 3% 対 2. 0%; PCIなし: 2. 9% 対 1. 8%).
結論:
- 慢性冠動脈症候群の患者では,以前のPCI歴やPCI以来の経過時間に関係なく,リバロキサバンとアスピリンの二重経路阻害により,MACEと死亡率が一貫して低下します.
- DPI 治療に関連する重度の出血のリスクは,両方の患者集団で慎重に考慮する必要があります.
- 慢性冠動脈症候群とPCI歴のある選択された患者でDPIを使用することを支持し,出血リスクと有効性をバランスします.
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