The DAPA-HF study presented by Alfonso Valle McMurray at ESC 2019 evaluated the effects of dapagliflozin in patients with heart failure and reduced ejection fraction. Results indicated that the drug reduced the composite outcome of cardiovascular death or heart failure exacerbation by 26%, decreased the risk of first heart failure hospitalization by 30%, and showed significant improvements in patient-reported outcomes. Additionally, there was a nominally significant 17% reduction in all-cause mortality.