NEJM:SGLT2抑制剂恩格列净降糖同时心血管获益明显(EMPA-REG OUTCOME研究)

2015-10-04 MedSci MedSci原创

本届EASD年会众目期待的EMPA-REG OUTCOME研究揭晓,文章同步发表在新英格兰杂志上。研究纳入7020例2型糖尿病心血管事件高危患者,在标准治疗基础上1:1:1随机接受SGLT2抑制剂恩格列净10 mg,恩格列净25 mg,安慰剂。平均随访3.1年。主要终点为首次发生心血管死亡、非致死性心梗和非致死性卒中所组成的复合终点。主要的次要复合终点为主要终点+不稳定心绞痛住院(EMP

本届EASD年会众目期待的EMPA-REG OUTCOME研究揭晓,文章同步发表在新英格兰杂志上。研究纳入7020例2型糖尿病心血管事件高危患者,在标准治疗基础上1:1:1随机接受SGLT2抑制剂恩格列净10 mg,恩格列净25 mg,安慰剂。平均随访3.1年。主要终点为首次发生心血管死亡、非致死性心梗和非致死性卒中所组成的复合终点。主要的次要复合终点为主要终点+不稳定心绞痛住院(EMPA-REG OUTCOME研究:具有划时代意义的降糖治疗试验)(NEJM:依帕列净能下降2型糖尿病患者心血管事件和死亡率)。

结果显示,恩格列净治疗组主要终点发生率10.5%(490/4687),对照组12.1%(282/2333),恩格列净组风险比(HR)0.86,95%可信区间0.74~0.99,P=0.04。两组心梗或卒中发生率无明显差异,但恩格列净组心血管死亡率显著降低(3.7% 对安慰剂组5.9%;相对风险降低38%)、心衰住院率更低(2.7% 对 4.1%;相对风险降低35%)、任何原因死亡率更低(5.7% 对 8.3%;相对风险降低32%)。主要的次要终点发生率两组无明显差异(P=0.08)。恩格列净组生殖系统感染率升高,其他不良事件无明显升高。

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中国人民解放军301医院潘长玉教授指出,就研究设计来看,EMPA-REG OUTCOME研究是非常科学的,它纳入40余个国家、7000余例患者、随访了3.1年,结果显示主要终点治疗组明显低于对照组,心衰住院和全因死亡也低于对照组。

既往研究提示SGLT2抑制剂增加酮症酸中毒(DKA)风险,从药物作用机制上也能解释这种可能性,但在这项大规模、长时间的研究中并未看到治疗组DKA风险升高(无论是10mg还是25mg),这一方面给我们带来安慰,另一方面也引人思考,小样本研究可能容易受到干扰因素的影响。

正如临床研究经验丰富的加拿大Gerstein教授点评所言,过去诸多降糖药心血管安全性研究都未如愿,本项研究揭晓的阳性结果无疑让糖尿病医生振奋。但同时也带来更多思考,例如两组终点事件曲线在3个月时就开始分离,其原因是什么仍需进一步分析;该研究获得的阳性结果能否被其他SGLT2抑制剂临床研究所重复;SGLT2抑制剂发生副作用的原因、如何预防等等。

潘教授也期待这项研究会对指南产生一定影响,让SGLT2抑制剂拥有一席之地。另外,我国未能参与到EMPA-REG OUTCOME研究中,潘教授希望未来能有来自中国人群的临床数据回答“yes or no”。

原始出处:

Zinman B, Wanner C, Lachin JM, Fitchett D, Bluhmki E, Hantel S, Mattheus M, Devins T, Johansen OE, Woerle HJ, Broedl UC, Inzucchi SE; EMPA-REG OUTCOME Investigators.Empagliflozin, Cardiovascular Outcomes, and Mortality in Type 2 Diabetes. N Engl J Med. 2015 Sep 17.

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    2016-02-11 jklm09
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    2015-10-24 tulenzi
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    2015-10-06 jiekemin