PMID- 32030422 OWN - NLM STAT- MEDLINE DCOM- 20210318 LR - 20210318 IS - 1460-2385 (Electronic) IS - 0931-0509 (Print) IS - 0931-0509 (Linking) VI - 36 IP - 1 DP - 2021 Jan 1 TI - Long-term safety and efficacy of sodium zirconium cyclosilicate for hyperkalaemia in patients with mild/moderate versus severe/end-stage chronic kidney disease: comparative results from an open-label, Phase 3 study. PG - 137-150 LID - 10.1093/ndt/gfz285 [doi] AB - BACKGROUND: Sodium zirconium cyclosilicate (SZC; formerly ZS-9) is a selective potassium (K+) binder for the treatment of adults with hyperkalaemia. This post hoc analysis of an open-label, single-arm trial (NCT02163499) compared SZC efficacy and safety >12 months among outpatients with hyperkalaemia and Stages 4 and 5 chronic kidney disease (CKD) versus those with Stages 1-3 CKD. METHODS: Adults with serum K+ >/=5.1 mmol/L (measured by point-of-care i-STAT device) received SZC 10 g three times daily for 24-72 h until normokalaemia (i-STAT K+ 3.5-5.0 mmol/L) was achieved [correction phase (CP)], followed by once daily SZC 5 g for /=30 mL/min/1.73 m2). Study endpoints included percent achieving normokalaemia during CP and MP, mean serum K+ and bicarbonate during MP, and adverse events (AEs). RESULTS: Of 751 patients enrolled, 289 (39%), 453 (60%) and 9 (1%) had baseline eGFR values of <30, >/=30 mL/min/1.73 m2 or missing, respectively. During the CP, 82% of patients achieved normokalaemia in both eGFR subgroups within 24 h, and 100 and 95% with baseline eGFR <30 and >/=30 mL/min/1.73 m2, respectively, within 72 h. Corresponding proportions with normokalaemia during the MP were 82 and 90% at Day 365, respectively. Mean serum K+ reduction from baseline during the CP was sustained throughout the MP and serum bicarbonate increased. AEs during the MP were more common in the eGFR <30 >/=30 mL/min/1.73 m2 subgroup. CONCLUSIONS: SZC corrects hyperkalaemia and maintains normokalaemia among outpatients regardless of the CKD stage. CI - (c) The Author(s) 2020. Published by Oxford University Press on behalf of ERA-EDTA. FAU - Roger, Simon D AU - Roger SD AD - Renal Research, Gosford, New South Wales, Australia. FAU - Lavin, Philip T AU - Lavin PT AD - Boston Biostatistics Research Foundation, Framingham, MA, USA. FAU - Lerma, Edgar V AU - Lerma EV AD - University of Illinois at Chicago College of Medicine/Advocate Christ Medical Center, Oak Lawn, IL, USA. FAU - McCullough, Peter A AU - McCullough PA AD - Baylor University Medical Center, Dallas, TX, USA. FAU - Butler, Javed AU - Butler J AD - Department of Medicine, University of Mississippi, Jackson, MS, USA. FAU - Spinowitz, Bruce S AU - Spinowitz BS AD - Division of Nephrology, Department of Medicine, New York Presbyterian Queens, New York, NY, USA. FAU - von Haehling, Stephan AU - von Haehling S AD - Department of Cardiology and Pneumology, University of Gottingen Medical Centre, Gottingen, Germany. FAU - Kosiborod, Mikhail AU - Kosiborod M AD - Saint Luke's Mid America Heart Institute and University of Missouri-Kansas City, Kansas City, MO, USA. AD - The George Institute for Global Health, University of New South Wales, Sydney, Australia. FAU - Zhao, June AU - Zhao J AD - AstraZeneca, Gaithersburg, MD, USA. FAU - Fishbane, Steven AU - Fishbane S AD - Zucker School of Medicine at Hofstra/Northwell, Great Neck, NY, USA. FAU - Packham, David K AU - Packham DK AD - Melbourne Renal Research Group, Department of Medicine, University of Melbourne, Melbourne, Australia. LA - eng SI - ClinicalTrials.gov/NCT02163499 PT - Clinical Trial, Phase III PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't PL - England TA - Nephrol Dial Transplant JT - Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association JID - 8706402 RN - 0 (Biomarkers) RN - 0 (Silicates) RN - D652ZWF066 (sodium zirconium cyclosilicate) RN - RWP5GA015D (Potassium) SB - IM MH - Aged MH - Biomarkers/*blood MH - Female MH - Humans MH - Hyperkalemia/blood/*drug therapy/etiology/pathology MH - Kidney Failure, Chronic/*complications MH - Male MH - Middle Aged MH - Potassium/*blood MH - Prognosis MH - Prospective Studies MH - Renal Insufficiency, Chronic/*complications MH - *Severity of Illness Index MH - Silicates/*therapeutic use PMC - PMC7771984 OTO - NOTNLM OT - chronic kidney disease OT - estimated glomerular filtration rate OT - hyperkalaemia OT - potassium OT - sodium zirconium cyclosilicate EDAT- 2020/02/08 06:00 MHDA- 2021/03/19 06:00 PMCR- 2020/02/06 CRDT- 2020/02/08 06:00 PHST- 2020/08/16 00:00 [received] PHST- 2020/02/08 06:00 [pubmed] PHST- 2021/03/19 06:00 [medline] PHST- 2020/02/08 06:00 [entrez] PHST- 2020/02/06 00:00 [pmc-release] AID - 5728762 [pii] AID - gfz285 [pii] AID - 10.1093/ndt/gfz285 [doi] PST - ppublish SO - Nephrol Dial Transplant. 2021 Jan 1;36(1):137-150. doi: 10.1093/ndt/gfz285.