Long-term effects of patiromer for hyperkalaemia treatment in patients with mild heart failure and diabetic nephropathy on angiotensin-converting enzymes/angiotensin receptor blockers: Results from AMETHYST-DN
JournalESC Heart Failure
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AbstractAims: Chronic kidney disease (CKD) in heart failure (HF) increases the risk of hyperkalaemia (HK), limiting angiotensin‐converting enzyme inhibitor (ACE‐I) or angiotensin receptor blocker (ARB) use. Patiromer is a sodium‐free, non‐absorbed potassium binder approved for HK treatment. We retrospectively evaluated patiromer's long‐term safety and efficacy in HF patients from AMETHYST‐DN. Methods and results: Patients with Type 2 diabetes, CKD, and HK [baseline serum potassium >5.0–5.5 mmol/L (mild) or >5.5–<6.0 mmol/L (moderate)], with or without HF (New York Heart Association Class I and II, by investigator judgement), on ACE‐I/ARB, were randomized to patiromer 8.4–33.6 g to start, divided twice daily. Overall, 105/304 (35%) patients had HF (75%, Class II). Mean (standard deviation) ejection fraction (EF) was 44.9% (8.2) (n = 81) in patients with HF; 26 had EF ≤40%. In HF patients, mean serum potassium decreased by Day 3 through Week 52. At Week 4, estimated mean (95% confidence interval) change in serum potassium was −0.64 mmol/L (−0.72, −0.55) in mild and −0.97 mmol/L (−1.14, −0.80) in moderate HK (both P < 0.0001). Most HF patients with mild (>88%) and moderate (≥73%) HK had normokalaemia at each visit from Weeks 12 to 52. Three HF patients were withdrawn because of high (n = 1) or low (n = 2) serum potassium. The most common patiromer‐related adverse event was hypomagnesaemia (8.6%). Conclusions: In patients with a clinical diagnosis of HF, diabetes, CKD, and HK on ACE‐I/ARB, patiromer was well tolerated and effective for HK treatment over 52 weeks. Copyright 2018 The Authors.
Identifier to cite or link to this itemhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85051100646&doi=10.1002%2fehf2.12292&partnerID=40&md5=258243bb115ac6cfd81d003d4c63ae82; http://hdl.handle.net/10713/9469
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