Safety and efficacy of policosanol in elder patients with high on-treatment platelet reactivity after ;drug-eluting stent implantation:a subgroup analysis of the SPIRIT study
10.3969/j.issn.1004-8812.2016.12.001
- VernacularTitle:多廿烷醇治疗老年急性冠状动脉综合征患者药物洗脱支架置入术后血小板高反应性的疗效与安全性研究：SPIRIT研究预设亚组分析
- Author:
Xiaofan YU
;
Heyang WANG
;
Yi LI
;
Kai XU
;
Hongyun ZANG
;
Liang GUO
;
Lu LI
;
Wei ZHAO
;
Xiaozeng WANG
;
Yaling HAN
- Keywords:
Policosanol;
High on-treatment platelet reactivity;
Drug-eluting stent
- From:
Chinese Journal of Interventional Cardiology
2016;24(12):661-666
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the safety and efficacy of policosanol in elder patients with high on-treatment platelet reactivity ( HPR) after drug-eluting stent ( DES) implantation. Methods This study was a prespecified subgroup analysis of the multicenter, randomized SPIRIT trial,in which there were a total of 169 elder patients (≥60 years old) with HPR. Among these patients, 30 patients were in group A ( given clopidogrel 75 mg/d for one year) , 75 patients in group B ( given clopidogrel 150 mg/d for 30 days followed by 75 mg/d until one year ) and 64 patients in group C ( given policosanol 40 mg/d for 6 month and clopidgrel 75 mg/d for one year ) . All patients were treated with aspirin at the same time. The primary endpoint was the reversion rate of HPR at 30 days (reversion was defined as platelet aggregation ﹤65%). The secondary endpoint was 2-year major adverse cardiac events ( MACE ) rate, which included cardiac death, non-fatal myocardial infarction and ischemic symptoms driven target vessel revascularization. The safety endpoint was any bleeding as defined by the Bleeding Academic Research Consortium ( BARC ) definition. Results At 30 days, the reversion rate of HPR in group C was numerically higher as compared with group A ( 42. 9% vs. 23. 3. 0%, P=0. 068 ) , and similar with group B ( 42. 9% vs. 49. 3%, P=0.447). MACE occurred in 4 (13.3%), 5(6.7%) and 3(4.7%) patients in group A, B and C respictively ( P=0. 352). Bleeding events in group A and group C were both markedly lower in comparison to group B (3. 3% vs. 17. 3% vs. 1. 6%, P=0. 001). At the 24-month follow-up, the MACE-free survival rates were not significantly different (95. 3% vs. 93. 3% vs. 86. 7%, P=0. 146). Conclusions For elder patients with HPR, policosanol reduced platelet reactivity to a similar extent in comparison of high maintenance dose of clopidogrel without increasing bleeding risk.
