Management of Chronic Kidney Disease-Mineral Bone Disorder with Sevelamer Hcl Phosphate Binder in Korean Patients with Dialysis

ABSTRACT

BACKGROUND: Sevelamer is associated with reduced complications of chronic kidney disease-mineral bone disorder (CKD-MBD) resulted from hyperphosphatemia, which may contribute mortality, in CKD patients with dialysis. So far clinical outcomes of sevelamer on mortality and risk of cardiovascular mortality related to CKD-MBD are debating. Purpose of this study was to evaluate the effectiveness of sevelamer HCl on mortality of secondary hyperparathyroidism (SHPT), risk of cardiovascular mortality and, frequency of osteopathy in end stage renal disease (ESRD) patients with dialysis. METHODS: We retrospectively reviewed the electronic medical records of 536 patients with ESRD, who were admitted for moderate to severe SHPT, for 36 months. 75 patients who met inclusion criteria were evaluated for the efficacy of sevelamer (mean serum iPTH = 487.5 pg/mL). RESULTS: Sevelamer intervention was not associated with increased three-year survival time compared with non-sevelamers group [average survival month 30.4 months in sevelamer group, 26.8 months in non-sevelamer group, p = 0.463]. Sevelamer intervention was not associated with significant mortality benefit and cardiovascular mortality benefit as compared to non-sevelamer group [sevelamer group non-sevelamer group, all-cause mortality (iPTH > 600 pg/mL) 14.3% (1/34) 20% (1/41) p = 0.962, OR = 0.935, 95% CI, 0.058-14.98, heart disease mortality 6.67% (2/30) 0% (0/32) p = 0.138]. Sevelamer was not associated with significantly lower cumulative incidence of osteopathy compared to non-sevelamer group (sevelamer group non-sevelamer group, 5.9% (2/34)9.8% (4/41); p = 0.538; OR = 0.578; 95% CI, 0.099-3.367). CONCLUSION: Sevelamer was not associated with decreased all-cause mortality and risk of cardiovascular mortality compared to non-sevelamer group in ESRD patients with SHPT.