Aims: To assess the cardiovascular effects of glucagon-like peptide-1 receptor agonists (GLP-1 RAs) and sodium-glucose co-transporter-2 (SGLT2) inhibitors in older people with type 2 diabetes.
Methods: PubMed, Embase, and Cochrane library were searched up to November 2020 for cardiovascular outcomes trials with GLP-1 RAs or SGLT2 inhibitors that reported results for older patients with type 2 diabetes. Random-effects meta-analyses were conducted for different age subgroup categories.
Results: A total of 11 studies (93,502 patients) were included. Consistent with their effect in the overall population, in patients ≥65 years, GLP-1 RAs reduced major adverse cardiovascular events (MACE) (hazard ratio [HR], 0.86; 95% confidence interval [CI], 0.80-0.92), cardiovascular death, stroke, and myocardial infarction. In the same age subgroup, SGLT2 inhibitors reduced MACE (HR, 0.90; 95% CI, 0.83-0.98) but had a neutral effect on its components. They also reduced heart failure hospitalization (HR, 0.62; 95% CI, 0.51-0.76), an effect that was not evident in patients <65 years, and the composite renal endpoint (HR, 0.57; 95% CI, 0.43-0.77). Meta-analyses for patients ≥75 years yielded similar results.
Conclusions: In older adults with diabetes, GLP-1 RAs reduced MACE and its components. SGLT2 inhibitors reduced MACE, and heart failure and renal outcomes.
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