PMID- 27784004 OWN - NLM STAT- MEDLINE DCOM- 20180118 LR - 20220331 IS - 1421-9670 (Electronic) IS - 0250-8095 (Linking) VI - 44 IP - 5 DP - 2016 TI - Patiromer Decreases Serum Potassium and Phosphate Levels in Patients on Hemodialysis. PG - 404-410 AB - BACKGROUND: Persistent hyperkalemia (serum potassium (K) >/=5.5 mEq/l) is a common condition in hemodialysis (HD) patients, is associated with increased mortality, and treatment options are limited. The effect of patiromer, a gastrointestinal K binder, on serum K was examined in HD patients. METHODS: Six hyperkalemic HD patients (5 anuric) were admitted to clinical research units for 15 days (1 pretreatment week and 1 patiromer treatment week) and they received a controlled diet with identical meals on corresponding days of pretreatment and treatment weeks. Phosphate (P) binders were discontinued on admission. Patiromer, 12.6 g daily (divided 4.2 g TID with meals), was started on the Monday morning following the last pretreatment week blood sampling. Serum and 24-hour stool samples were collected daily. RESULTS: Mean +/- SE serum K decreased (maximum change per corresponding day, 0.6 +/- 0.2 mEq/l, p = 0.009) and fecal K increased 58% on patiromer compared with the pretreatment week. During the pretreatment week, 69.0, 47.6, and 11.9% of patients' serum K values were >/=5.5, >/=6.0, and >/=6.5 mEq/l, respectively. This was reduced to 38.1% (p = 0.009), 11.9% (p < 0.001), and 2.4% (p = 0.2) on patiromer. Following P binder discontinuation, the long interdialytic interval mean +/- SE serum P numerically increased from 5.8 +/- 0.4 to 7.0 +/- 0.5 mg/dl (p = 0.06). On patiromer, P decreased from 7.0 +/- 0.5 to 6.2 +/- 0.5 mg/dl (p = 0.04). While on patiromer, fecal P numerically increased by 112 +/- 72 mg/day (17%; p = 0.1792; range -148 to 344 mg/day). No patient discontinued patiromer because of adverse events (AEs); none had serious AEs. CONCLUSIONS: In 6 hyperkalemic HD patients, patiromer decreased serum K and P levels and increased fecal K. CI - (c) 2016 The Author(s) Published by S. Karger AG, Basel. FAU - Bushinsky, David A AU - Bushinsky DA AD - Department of Medicine, University of Rochester, Rochester, N.Y., USA. FAU - Rossignol, Patrick AU - Rossignol P FAU - Spiegel, David M AU - Spiegel DM FAU - Benton, Wade W AU - Benton WW FAU - Yuan, Jinwei AU - Yuan J FAU - Block, Geoffrey A AU - Block GA FAU - Wilcox, Christopher S AU - Wilcox CS FAU - Agarwal, Rajiv AU - Agarwal R LA - eng PT - Clinical Trial PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20161027 PL - Switzerland TA - Am J Nephrol JT - American journal of nephrology JID - 8109361 RN - 0 (Polymers) RN - 1FQ2RY5YHH (patiromer) SB - IM MH - Adult MH - Female MH - Humans MH - Hyperkalemia/etiology/*prevention & control MH - Kidney Failure, Chronic/*blood/complications/therapy MH - Male MH - Middle Aged MH - Polymers/pharmacology/*therapeutic use MH - Renal Dialysis EDAT- 2016/10/27 06:00 MHDA- 2018/01/19 06:00 CRDT- 2016/10/27 06:00 PHST- 2016/07/01 00:00 [received] PHST- 2016/09/14 00:00 [accepted] PHST- 2016/10/27 06:00 [pubmed] PHST- 2018/01/19 06:00 [medline] PHST- 2016/10/27 06:00 [entrez] AID - 000451067 [pii] AID - 10.1159/000451067 [doi] PST - ppublish SO - Am J Nephrol. 2016;44(5):404-410. doi: 10.1159/000451067. Epub 2016 Oct 27.