Pragmatic Trial Of Alerts for Use of Mineralocorticoid Receptor Antagonists

Despite the robust literature demonstrating improved outcomes with the use of mineralocorticoid antagonists (MRAs) in patients with heart failure with reduced ejection fraction (HFrEF), MRAs continue to be underused in clinical practice. This underuse often stems from the perceived risks of hyperkalemia, including a prior history of hyperkalemia and acute or chronic kidney disease, as well as the cautioned use for those with potassium greater than 5.0 mEq/L, as recommended in national societal guidelines. New potassium binders have recently been approved by the United States Food and Drug Administration (FDA) to treat hyperkalemia. It remains unknown if a best practice alert built into the clinical electronic health record can facilitate MRA prescription in eligible patients by providing guideline-based information about MRA recommendations and evidence, as well as informing practitioners about available treatments for hyperkalemia.

This is a pragmatic, cluster-randomized, open-label interventional trial to test the comparative effectiveness of an EHR BPA system that informs practitioners about MRAs for HFrEF and, if necessary, potassium-binders that are FDA-approved for hyperkalemia, versus usual care (no alert, current standard of care). One hundred and fifty outpatient Cardiology and Internal Medicine providers (to include physicians and advanced practice providers (nurse practitioners, physician assistants, and advanced practice registered nurses)) practicing at affiliated locations will be enrolled and undergo randomization to either the intervention (alert) group or a control (usual care) group. Those in the intervention group will receive an informational alert for their eligible adult outpatients (those with HFrEF not currently prescribed an MRA). Those in the control group will not receive any alerts and will continue to care for patients as usual. The primary outcome will be the proportion of patients with HFrEF who have an active prescription for an MRA at 6 months following randomization.