急性冠動脈症候群後の死亡率に対するアリロキュマブの効果
Philippe Gabriel Steg1,2, Michael Szarek3, Deepak L Bhatt4
1Assistance Publique-Hôpitaux de Paris, Hôpital Bichat, Université de Paris, FACT (French Alliance for Cardiovascular Trials), INSERM U1148, Paris, France (P.G.S.).
Circulation
|May 24, 2019
まとめ
アリロキュマブは急性冠動脈症候群の患者で,特に治療期間が長くなり,LDLコレステロール値が低下すると,全因死亡率が著しく低下しました. このPCSK9阻害剤は,高リスクの心血管疾患患者の死亡率に潜在的利点をもたらします.
科学分野:
- 心臓病科
- 薬理学について
- 臨床試験
背景:
- 前回のプロプロテイン変換酵素9型 (PCSK9) 阻害剤試験では,心血管疾患の減少が認められたが,死亡率は認められなかった.
- ODYSSEY OUTCOMES試験では,急性冠動脈症候群 (ACS) の後の死亡に対するアリロキュマブの効果を調査した.
研究 の 目的:
- ACS後の患者における全因死亡率およびその成分に対するアリロキュマブの影響を評価する.
- 達成された低密度脂質タンパク質コレステロール (LDL-C) 値と死亡率の利益との関係を評価する.
主な方法:
- 最近のACSとスタチンの治療でLDL- Cが上昇した18,924人の患者を対象とした二重盲検ランダム化試験です.
- アリロキュマブの投与量は,25- 50 mg/ dLのLDL- Cを達成するために調整され,結果はプラセボと比較された.
- ログランクテストと関節半パラメトリックモデルは,死亡と心血管疾患を分析するために使用されました.
主要な成果:
- アリロキュマブは,すべての原因による死亡率 (HR 0. 85,P=0. 03) を,平均2. 8年の追跡期間で減少させた.
- 3年以上の追跡期間で,前述の分析で死亡率に有意な改善が見られた (HR 0. 78,P=0. 01).
- 死亡率の減少は,初期LDL- C≥100 mg/ dLと,LDL- Cレベルが約30 mg/ dLに達した患者で顕著であった.
結論:
- アリロキュマブは,スタチンの集中治療に追加された場合,ACS後の死亡率を低下させる可能性があります.
- 治療期間 ≥3年,LDL-Cのベースライン ≥100 mg/ dL,および低レベルのLDL-Cの達成は,死亡率の利点を高めます.
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