Efficacy of Sodium-Glucose Cotransporter-2 Inhibitors in Patients With Acute Myocardial Infarction: A Meta-Analysis of Randomised Controlled Trials.

BACKGROUND: Sodium-glucose cotransporter 2 (SGLT2) inhibitors improve cardiovascular (CV) outcomes in patients with or without Type 2 diabetes and heart failure (HF). However, studies have shown conflicting evidence regarding their efficacy in patients following acute myocardial infarction (MI). We conducted a pilot systematic review and meta-analysis to synthesise the available evidence regarding the effectiveness of SGLT2 inhibitors in MI.

METHODS: A systematic literature search was conducted using PubMed/MEDLINE, the Cochrane Library and Embase databases to identify randomised controlled trials (RCTs) that compared clinical outcomes of SGLT2 inhibitors with placebo following MI. We conducted the statistical analysis using RevMan, version 5.4 and pooled risk ratios (RRs) along the corresponding 95% confidence interval (CI) for all outcomes.

RESULTS: Five RCTs reporting data for 11,211 patients were included in our study. The mean follow-up duration was 43.8 weeks. Our pooled analysis showed that SGLT2 inhibitors significantly reduced the risk of hospitalisations for heart failure (HHF) (RR = 0.76, 95% CI: 0.61-0.88, p = 0.001) in patients with MI. However, the risk of all-cause mortality (RR = 1.05, 95% CI: 0.78-1.41, p = 0.76), CV mortality (RR = 1.04, 95% CI = 0.84-1.29, p = 0.73) and all-cause hospitalisations (RR = 1.06, 95% CI: 0.96-1.17, p = 0.25) remained comparable across the two groups.

CONCLUSION: SGLT2 inhibitors reduce HHF without affecting all-cause mortality, CV mortality and all-cause hospitalisations. However, further evidence is required to reach a definitive conclusion.