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Twice-monthly administration of a lower dose of epoetin beta pegol can maintain adequate hemoglobin levels in hemodialysis patients.

Epoetin beta pegol is a continuous erythropoietin receptor activator (CERA) with a long half-life. Although CERA has been shown to maintain adequate hemoglobin (Hb) levels at prolonged dosing intervals, the optimal dosing schedule remains unclear. We therefore compared the efficacy of maintaining hemoglobin levels with administration of twice-monthly CERA (TWICE) versus once-monthly CERA (ONCE). Twenty hemodialysis patients receiving epoetin beta (EPO) were enrolled in this crossover study. Patients were assigned to either the TWICE or the ONCE group based on matching Hb levels and EPO doses. After 6 months of treatment, the CERA dosage was interchanged between the groups and the study was continued for an additional 6 months. The effect of the different regimens on iron metabolism was also assessed during the first 6 months of the study. Hb levels significantly increased in the TWICE group, allowing for a reduction in CERA dosage, while the dose of CERA required to maintain Hb levels in the ONCE group remained unchanged. After the interchange, a decrease in Hb levels with incremental increase in CERA dosage was observed in the TWICE→ONCE group, with the opposite effect observed in the ONCE→TWICE group. Although increases in ferritin and hepcidin-25 levels in the ONCE group were noted at one month, they disappeared at 6 months. Although Hb levels were maintained in both the ONCE and TWICE groups, a twice-monthly administration was advantageous, as it required a lower dose of CERA.

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