Incidence and potential predictors of SGLT2 inhibitor initiation in acutely hospitalized patients with heart failure.

Abstract

Purpose: The purpose of this study was to assess the incidence of sodium-glucose cotransporter 2 (SGLT2) inhibitor initiation in hospitalized patients with heart failure and determine what potential factors may influence use.

Methods: A single-center, retrospective cohort analysis was conducted of hospitalized patients with heart failure. The primary outcome was the incidence of SGLT2 inhibitor initiation. Secondary outcomes included the rates of use of other guideline-directed medical therapy, identification of factors associated with initiation of SGLT2 inhibitors, and reasons why SGLT2 inhibitors were not initiated.

Results: A total of 503 patients were included. The overall incidence of SGLT2 inhibitor initiation was 18% across all heart failure types, with 30% incidence in heart failure with reduced ejection fraction, 2.2% incidence in heart failure with mildly reduced ejection fraction (HFmrEF), and 5.7% incidence in heart failure with preserved ejection fraction (HFpEF). Logistic regression analysis showed that older age (odds ratio [OR], 0.97; 95% confidence interval [CI], 0.95-0.99; P = 0.009) and the presence of HFpEF (OR, 0.37; 95% CI, 0.17-0.77; P = 0.007) or HFmrEF (OR, 0.22; 95% CI, 0.05-0.69; P = 0.02) were negatively associated with SGLT2 inhibitor initiation. Presence of an angiotensin-converting enzyme inhibitor, angiotensin 2 receptor blocker, or angiotensin receptor/neprilysin inhibitor (OR, 2.14; 95% CI, 1.16-4.05; P = 0.017) or a β-blocker (OR, 3.78; 95% CI, 1.62-10.37; P = 0.004) was positively associated with the addition of an SGLT2 inhibitor, as was a cardiology consult (OR, 8.29; 95% CI, 2.36-52.83; P = 0.005). Providers rarely documented the reason for not prescribing an SGLT2 inhibitor, but the most commonly cited reasons were deferral to the outpatient setting (5.6%) and concern for renal function (4.6%).

Conclusion: Use of SGLT2 inhibitors remains low despite recommendations advocating for their use in heart failure, with these agents specifically underutilized in HFpEF and HFmrEF at this institution.