Effects of sacubitril/valsartan according to polypharmacy status in PARAGON‐HF

AimsPatients with heart failure (HF) and preserved ejection fraction (HFpEF) have a particularly high prevalence of comorbidities, often necessitating treatment with many medications. The aim of this study was to evaluate the association between polypharmacy status and outcomes in PARAGON‐HF.Methods and resultsIn this post hoc analysis, baseline medication status was available in 4793 of 4796 patients included in the primary analysis of PARAGON‐HF. The effects of sacubitril/valsartan, compared with valsartan, were assessed according to the number of medications at baseline: 683 non‐polypharmacy (<5 medications); 2750 polypharmacy (5–9 medications), and 1360 hyper‐polypharmacy (≥10 medications). The primary outcome was total HF hospitalizations and cardiovascular deaths. Patients with hyper‐polypharmacy were older, had more severe limitations due to HF (worse New York Heart Association class and Kansas City Cardiomyopathy Questionnaire scores), and had greater comorbidity. The non‐adjusted risk of the primary outcome was significantly higher in patients taking more medications, and similar trends were seen for HF hospitalization and cardiovascular and all‐cause death. The effect of sacubitril/valsartan versus valsartan on the primary outcome from the lowest to highest polypharmacy category was (as a rate ratio): 1.19 (0.76–1.85), 0.94 (0.77–1.15), and 0.77 (0.61–0.96) (pinteraction = 0.16). Treatment‐related adverse events were more common in patients in the higher polypharmacy categories but not more common with sacubitril/valsartan, versus valsartan, in any polypharmacy category.ConclusionsPolypharmacy is very common in patients with HFpEF, and those with polypharmacy have worse clinical status and a higher rate of non‐fatal and fatal outcomes. The benefit of sacubitril/valsartan was not diminished in patients taking a larger number of medications at baseline.