Abstract 343: Trends and Predictors of Use of Angiotensin Receptor Blocker and Neprilysin Inhibitor in Patients With Heart Failure

Objective: Current guidelines recommend use of combination therapy with angiotensin receptor blocker and neprilysin inhibitor (ARNI) (i.e., Entresto ® ) in patients with heart failure (HF) with reduced ejection fraction as a class 1 recommendation. Contemporary data on real-world use of these agents is lacking. Methods: This is a retrospective cohort study of individuals enrolled in Clinformatics® Data Mart Database (OptumInsight, Eden Prairie, MN from January 1, 2016 to December 31, 2018. We included all individuals ≥ 18 years, with two outpatient encounters or one inpatient encounter with a principal ICD 10 diagnosis for HFand 6 months of continuous enrollment. To further identify patients with reduced ejection fraction, we only included individuals who received prescriptions for beta-blockers and angiotensin converting enzyme inhibitors/ angiotensin receptor blockers. Comorbidities were identified using Elixhauser comorbidity index.. Multivariate logistic regression model was used to identify predictors of ARNI use. Results: A total of 154,777 patients were included in our cohort. Overall, 5,834 patients (3.8%) received an ARNI prescription. Use of ARNI increased from 1.4% in 2016 to 3.9% in 2018 (p Conclusion: Rates of ARNI use remain low among patients with heart failure with racial and gender disparities. Heart Failure patients receiving care with a cardiologist were more likely to receive ARNI. Out of pocket cost for this medication remains high and may be a significant barrier to its use.