Ariotti Sara, Gargiulo Giuseppe, Valgimigli Marco
Department of Cardiology, Bern University Hospital, University of Bern, CH-3010, Bern, Switzerland.
Department of Advanced Biomedical Sciences, University Federico II, Naples, Italy.
Curr Cardiol Rep. 2017 Jan;19(1):2. doi: 10.1007/s11886-017-0810-9.
This review aims to summarize and discuss safety and effectiveness of the long-term use of ticagrelor in patients with coronary artery disease (CAD).
Ticagrelor is an orally administered, direct, and reversible inhibitor of the P2Y-platelet receptor. Long-term use of ticagrelor in patients with previous myocardial infarction (MI) has been investigated in the PEGASUS-TIMI-54 trial. Overall, 21,162 patients with a spontaneous MI 1 to 3 years before randomization were randomly assigned to ticagrelor 90 mg bid, ticagrelor 60 mg bid, or placebo. Compared with placebo, both doses of ticagrelor showed that they were capable of significantly reducing the primary efficacy endpoint, although with a significant increase in TIMI major bleeding. Intracranial hemorrhage or fatal bleeding did not differ across groups. These findings establish clear benefit of DAPT extension with ticagrelor beyond 1 year of treatment, which comes with a tradeoff of clinically meaningful bleeding. Altogether, current evidence suggests that the duration of DAPT remains a patient-by-patient decision based on thrombotic and bleeding risk profiles.
本综述旨在总结和讨论替格瑞洛在冠状动脉疾病(CAD)患者中长期使用的安全性和有效性。
替格瑞洛是一种口服的、直接的、可逆的P2Y血小板受体抑制剂。在PEGASUS-TIMI-54试验中研究了替格瑞洛在既往心肌梗死(MI)患者中的长期使用情况。总体而言,21162例在随机分组前1至3年发生自发性心肌梗死的患者被随机分配至替格瑞洛90mg bid、替格瑞洛60mg bid或安慰剂组。与安慰剂相比,两种剂量的替格瑞洛均显示能够显著降低主要疗效终点,尽管TIMI大出血显著增加。各组间颅内出血或致命性出血无差异。这些发现确立了替格瑞洛延长双联抗血小板治疗(DAPT)超过1年的明确益处,这伴随着具有临床意义的出血风险。总之,目前的证据表明,DAPT的持续时间仍需根据血栓形成和出血风险情况逐例决定。