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Efficacy and safety of high dose epoetin alfa therapy in CAPD patients by cross-over study.
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Abstract
Background: Recombinant human erythropoietin (rHuEPO) is an essential and well-established treatment for renal anemia. Rcently, clinicians have moved toward administration of high dose rHuEPO to reduce the inconvenience and time efficient.We aimed to determine whether high dose subcutaneous (SC) epoetin alfa is as efficient and safe as the usual dose for treating anemia in continuous ambulatory peritoneal dialysis (CAPD) patients.
Methods: Twenty-four patients on CAPD were randomly assigned to a high-usual dose group (n=12) and an usual-high dose group (n=12) with a variable interval for 48 weeks. Patients received 10 times treatments by scheduled visiting during Period I lasting 24 weeks and received 4 times treatments by scheduled visiting in Period II lasting 24 weeks by cross-over. The high dose was 10,000 IU and the usual dose was 4,000 IU epoetin alfa regimen. If hematocrit was out of the targeted range, 30~39%, the interval of epoetin alfa was changed within 50% of the previous interval.
Results: Fifteen patients, out of 24, completed the study (8 patients in the high-usual dose group; 7 patients in the usual-high dose group). Mean hemoglobin levels at randomization and after 12, 24, 36 and 48 weeks were 10.8+/-1.1, 11.5+/-0.9, 11.5+/-1.5, 11.4+/-1.5, 11.5+/-0.8 g/dL, respectively, in high-usual dose group compared with 11.2+/-0.8, 11.4+/-1.2, 11.2+/-0.9, 11.2+/-1.4, 11.4+/-0.9 g/dL, respectively, in usual-high dose group. The mean weekly epoetin alfa dosages at randomization and after 12, 24, 36 and 48 weeks were 83.6+/-38.1, 87.1+/-35.8, 89.4+/-34.2, 60.1+/-25.1, 62.8+/-30.7 IU/kg/week, respectively, in high-usual dose group compared with 69.8+/-31.6, 64.9+/-12.2, 69.9+/-46.1, 78.8+/-29.3, 75.9+/-16.4 IU/kg/week, respectively, in usual-high dose group. No statistically significant differences between the two groups were apparent for hemoglobin levels or mean weekly epoetin alfa dosages. Treatment interval at Period I and Period II were 13.3+/-5.3, 8.2+/-4.3 days in high-usual dose group compared with 7.0+/-2.5, 13.4+/-4.0 days in usual-high dose group with statistically significant differences. Treatment interval in high dose was about two times as longer as usual dose. Adverse events were generally mild and transient, and pain on injection site following subcutaneous administration was rarely reported.
Conclusion: This study demonstrates that epoetin alfa 10,000 IU is as efficient and safe as 4,000 IU with a similar weekly dose in CAPD patients. Epoetin alfa 10,000 IU administration can reduce frequency of injections by about one half.
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CAPD, Erythropoietin, Anemia
KMID :
0882420060710050527
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epoetin alfa 10,000 IU is as efficient and safe as 4,000 IU with a similar weekly dose in CAPD patients. Epoetin alfa 10,000 IU administration can reduce frequency of injections by about one half