Mineralocorticoid receptor antagonist use does not affect em
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The use of mineralocorticoid receptor antagonists did not influence the ability of empagliflozin to reduce adverse HF and renal outcomes, according to data from EMPEROR-Reduced published in the Journal of the American College of Cardiology.

Mineralocorticoid receptor antagonists (MRAs) and sodium glucose co-transporter 2 inhibitors favorably influence the clinical course of patients with heart failure and reduced ejection fraction.

This study sought to study the mutual influence of empagliflozin and MRAs in EMPEROR-Reduced (Empagliflozin Outcome Trial in Patients With Chronic Heart Failure With Reduced Ejection Fraction).

Secondary analysis that compared the effects of empagliflozin versus placebo in 3,730 patients with heart failure and a reduced ejection fraction, of whom 71% used MRAs at randomization.

Results:
-- The effects of empagliflozin on the primary endpoint, on most efficacy endpoints, and on safety were similar in patients receiving or not receiving an MRA.

-- For cardiovascular death, the hazard ratios for the effect of empagliflozin versus placebo were 0.82 in MRA users and 1.19 in MRA nonusers; a similar pattern was seen for all-cause mortality.

-- Among MRA nonusers at baseline, patients in the empagliflozin group were 35% less likely than those in the placebo group to initiate treatment with an MRA following randomization.

-- Among MRA users at baseline, patients in the empagliflozin group were 22% less likely than those in the placebo group to discontinue treatment with an MRA following randomization.

-- Severe hyperkalemia was less common in the empagliflozin group.

Conclusively, in EMPEROR-Reduced, the use of MRAs did not influence the effect of empagliflozin to reduce adverse heart failure and renal outcomes. Treatment with empagliflozin was associated with less discontinuation of MRAs. (Empagliflozin Outcome Trial in Patients With Chronic Heart Failure With Reduced Ejection Fraction

Source: https://www.jacc.org/doi/10.1016/j.jacc.2021.01.044
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