NEJM:降糖药沙格列汀无心血管保护作用

2013-09-06 xzdjh dxy

研究要点: SAVOR-TIMI 53试验旨在评价沙格列汀对有心血管事件风险的糖尿病患者的心血管预后情况。沙格列汀既未降低也没增加缺血性事件发生,但沙格列汀组患者心衰住院率高于安慰剂组患者。临床医生在沙格列汀改善血糖的基础上,必须采取其他降低心血管事件危险的措施。沙格列汀是选择性二肽基肽酶-4 (DPP - 4 )抑制剂,可改善血糖调节,但其心血管安全性和有效性并不清楚。Scirica BM等研

研究要点:

SAVOR-TIMI 53试验旨在评价沙格列汀对有心血管事件风险的糖尿病患者的心血管预后情况。沙格列汀既未降低也没增加缺血性事件发生,但沙格列汀组患者心衰住院率高于安慰剂组患者。
临床医生在沙格列汀改善血糖的基础上,必须采取其他降低心血管事件危险的措施。沙格列汀是选择性二肽基肽酶-4 (DPP - 4 )抑制剂,可改善血糖调节,但其心血管安全性和有效性并不清楚。Scirica BM等研究人员在9月份的NEJM杂志上发表了SAVOR-TIMI 53试验的研究结果。该试验是一项为多中心、随机双盲,安慰剂对照研究,旨在评价沙格列汀对有心血管事件风险的糖尿病患者的心血管预后情况。【原文下载

本项研究共纳入16,492例曾发生心血管事件或有心血管事件危险因素的2型糖尿病患者,研究人员对受试者分别予以沙格列汀或安慰剂治疗,中位随访时间为2.1年。主管医生可根据临床情况对受试者的包括降糖药在内的其他药物进行调整。主要终点事件包括心血管死亡、心肌梗死或缺血性卒中。研究发现,在主要终点事件上(心血管疾病死亡、非致死性心梗和非致死性卒中), 沙格列汀组有613例患者出现,安慰剂对照组则有609例患者,两组间无统计学意义;该结果与意向性治疗分析的结果相近。心血管疾病死亡、心肌梗死、卒中、因不稳的心绞痛、冠脉血运重建和心衰住院情况等主要的次级终点事件,在沙格列汀组共有1059例患者发生,安慰剂组则为1034例,两组间无统计学差异。但沙格列汀组患者心衰住院率高于安慰剂组患者。两组间急性和慢性胰腺炎的发生情况相似。

这项研究表明,DPP-4抑制剂沙格列汀既未降低也没增加缺血性事件发生,这虽然满足与安慰剂比较的非劣性标准,但却没有任何心血管获益。沙格列汀可显着改善血糖控制情况以及减少微量白蛋白尿的发生和进展;但其也增加因心衰住院和低血糖风险。临床医生在沙格列汀改善血糖的基础上,也必须采取其他降低心血管事件危险的措施。

原文下载

Scirica BM, Bhatt DL, Braunwald E, Steg PG, Davidson J, Hirshberg B, Ohman P, Frederich R, Wiviott SD, Hoffman EB, Cavender MA, Udell JA, Desai NR, Mozenson O, McGuire DK, Ray KK, Leiter LA, Raz I; the SAVOR-TIMI 53 Steering Committee and Investigators.Saxagliptin and Cardiovascular Outcomes in Patients with Type 2 Diabetes Mellitus.N Engl J Med. 2013 Sep 2.

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