Impact of Sodium-Glucose Cotransporter-2 Inhibitors on Cardiovascular Outcomes in Transthyretin Amyloid Cardiomyopathy

IF 2.3 3区 医学 Q2 CARDIAC & CARDIOVASCULAR SYSTEMS
Stefano H. Byer MD, MS , Aravinthasamy Sivamurugan BA , Udhayvir S. Grewal MD , Michael G. Fradley MD , Paari Dominic MD
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引用次数: 0

Abstract

Transthyretin amyloid cardiomyopathy (ATTR-CM) is a progressive form of heart failure characterized by restrictive hemodynamics and high morbidity. Tafamidis remains the only approved treatment, but its limited availability underscores the need for alternative therapies. Sodium-glucose co-transporter 2 inhibitors (SGLT2i), shown to improve outcomes in heart failure with preserved ejection fraction (HFpEF), may offer therapeutic benefits in ATTR-CM due to shared pathophysiological mechanisms. A retrospective cohort analysis was conducted using data from the TriNetX Global Research Network. Patients with wild-type transthyretin amyloid cardiomyopathy (wtATTR-CM) were divided into 2 groups: those receiving SGLT2i therapy and those not treated with SGLT2i. Propensity score matching balanced 19 baseline characteristics. Clinical outcomes, including heart failure exacerbations, all-cause hospitalizations, acute kidney injury (AKI), and all-cause mortality, were assessed over 5 years. The study included 623 matched patients in each cohort. SGLT2i therapy was associated with significant reductions in heart failure exacerbations (hazard ratio [HR] 0.64, 95% confidence interval [CI]: 0.48 to 0.86, p <0.01), all-cause hospitalizations (HR 0.72, 95% CI: 0.58 to 0.91, p <0.01), and AKI (HR 0.53, 95% CI: 0.35 to 0.79, p <0.01). A trend toward reduced all-cause mortality (HR 0.83, 95% CI: 0.63 to 1.08, p = 0.165) was observed, though not statistically significant. In conclusions, SGLT2 inhibitors demonstrate significant potential to reduce morbidity and healthcare utilization in wt-ATTR-CM patients, with promising trends toward improved survival. These findings highlight SGLT2i as a viable adjunct to existing therapies like tafamidis and warrant further investigation through prospective randomized trials.
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来源期刊
American Journal of Cardiology
American Journal of Cardiology 医学-心血管系统
CiteScore
4.00
自引率
3.60%
发文量
698
审稿时长
33 days
期刊介绍: Published 24 times a year, The American Journal of Cardiology® is an independent journal designed for cardiovascular disease specialists and internists with a subspecialty in cardiology throughout the world. AJC is an independent, scientific, peer-reviewed journal of original articles that focus on the practical, clinical approach to the diagnosis and treatment of cardiovascular disease. AJC has one of the fastest acceptance to publication times in Cardiology. Features report on systemic hypertension, methodology, drugs, pacing, arrhythmia, preventive cardiology, congestive heart failure, valvular heart disease, congenital heart disease, and cardiomyopathy. Also included are editorials, readers'' comments, and symposia.
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