Ann Intern Med:射血分数降低的心力衰竭患者虚弱程度对达格列净疗效和安全性的影响

2022-04-26 MedSci原创 MedSci原创

达格列净改善了所有评估的结局,而不考虑患者的虚弱状态。然而,在体质较弱的患者中,绝对减少量更大。

虚弱可能会改变某些治疗的风险-收益情况,虚弱患者可能会降低对治疗的耐受性。近日,内科学权威杂志Annals of Internal Medicine上发表了一篇研究文章,该研究旨在根据患者的虚弱状态,采用Rockwood累积亏损法,探讨达格列净在DAPA-HF(达格列净预防心力衰竭不良结局)中的疗效。

该研究是在20个国家的410个地区进行的3期随机临床试验的事后分析(ClinicalTrials.gov: NCT03036124)。患者为左心室射血分数为40%或更低且钠尿肽升高的症状性心力衰竭(HF)患者。该研究的干预为在指南推荐的治疗中加入10mg的达格列净或安慰剂,每日一次。该研究的结局结局指标为心衰恶化或心血管死亡。

在4744例随机分配的DAPA-HF患者中,4742例患者可计算出衰弱指数(FI)。该研究共有2392例(50.4%)患者FI属于1级(FI≤0.210;不虚弱),1606 例(33.9%)患者FI为2级(FI为0.211~0.310);744例(15.7%)患者FI为3级(FI≥0.311;最脆弱的)。中位随访时间为18.2个月。达格列净降低了HF恶化或心血管死亡的风险,无论FI等级如何。达格列净与安慰剂组的每100人每年事件率的差异从最低的FI等级到最高的FI等级分别为-3.5 (95%CI为-5.7至-1.2)、-3.6(CI为-6.6至-0.5)和-7.9(CI为-13.9至-1.9)。在其他临床事件和健康状况中观察到一致的获益,但在最虚弱的患者中,绝对降幅通常更大。不管FI等级如何,达格列净的研究药物停用和严重不良事件并不比安慰剂更频繁。

由此可见,达格列净改善了所有评估的结局,而不考虑患者的虚弱状态。然而,在体质较弱的患者中,绝对减少量更大。

原始出处:

Jawad H. Butt,et al.Efficacy and Safety of Dapagliflozin According to Frailty in Heart Failure With Reduced Ejection Fraction A Post Hoc Analysis of the DAPA-HF Trial.Ann Intern Med 2022.https://www.acpjournals.org/doi/10.7326/M21-4776

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    2022-04-26 病毒猎手

    #心力衰竭##达格列净#,未来需要进一步细分,对不同分型的心力衰竭的作用进行综合判断

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