Effects of sodium glucose cotransporter type 2 inhibitors on heart failure
Abstract
Heart failure (HF) is emerging as one of the most common cardiovascular (CV) events in patients with type 2 diabetes (T2D), and the one associated with the worst prognosis. T2D and insulin resistance are strong predictors of incident HF, especially HF with preserved ejection fraction (HFpEF). Recent data suggest that even when all traditional risk factors for ASCVD are well controlled, patients with T2D continue to have a substantially greater risk of developing HF-indicating that traditional risk factor control is insufficient from a HF prevention standpoint, and highlighting the need for novel, more effective strategies for both prevention and treatment of heart failure in patients with T2D. Until recently, medications developed for glucose-lowering had, at best, neutral effect on heart failure outcomes in patients with T2D, while several classes of T2D medications had little data in regards to HF risk, and others actually increased the risk of HF hospitalization. Sodium glucose cotransporter type 2 inhibitors (SGLT-2i) have a novel and unique mechanism of action. By inhibiting sodium and glucose reabsorption in the proximal tubule, SGLT-2i result in a number of downstream effects, including glucosuria, weight loss, osmotic diuresis and natriuresis, which should theoretically be beneficial in HF. Three CVOTs of various SGLT-2i (EMPA-REG OUTCOME, CANVAS and DECLARE-TIMI 58) enrolled markedly different patient populations in terms of ASCVD risk, but have demonstrated robust…
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