Efficacy and safety of subcutaneous administration of lyophilized powder of alfa-erythropoietin to maintain hemoglobin concentrations among hemodialysis patients
Authors Satirapoj B, Dispan R, Supasyndh O
Received 11 June 2017
Accepted for publication 18 July 2017
Published 20 September 2017 Volume 2017:10 Pages 275—283
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Akshita Wason
Peer reviewer comments 2
Editor who approved publication: Professor Pravin Singhal
Bancha Satirapoj, Rattanawan Dispan, Ouppatham Supasyndh
Division of Nephrology, Department of Medicine, Phramongkutklao Hospital and College of Medicine, Bangkok, Thailand
Background: Anemia associated with chronic kidney disease (CKD) often requires treatment with recombinant human erythropoietin (EPO). This study investigated the therapeutic equivalence between lyophilized powder and standard liquid EPO alfa by subcutaneous (SC) administration in hemoglobin maintenance among patients on hemodialysis.
Methods: This was a single-blinded, randomized, controlled, single-center, parallel-group study regarding the treatment of anemia among CKD patients on hemodialysis and being treated with stable doses of EPO alfa at least for 12 weeks. Anemic hemodialysis patients (n=63) received standard liquid or lyophilized powder EPO alfa for 24 weeks by SC administration. Achievement of the target hemoglobin concentration and safety and tolerability end points were documented.
Results: Baseline mean hemoglobin level was 11.1±0.7 g/dL using lyophilized powder EPO alfa and 11.2±0.9 g/dL using standard liquid EPO alfa. The baseline median dose of EPO alfa was 126.4 (interquartile range [IQR] 81.6–163.6) U/kg/week in the lyophilized powder EPO alfa group and 116.9 (IQR 76.5–144.1) U/kg/week in the standard liquid EPO alfa group. Treatment with SC lyophilized powder EPO alfa maintained mean hemoglobin and hematocrit concentrations after switching from standard liquid EPO alfa. No statistical significance between groups was reported for hemoglobin concentrations and weekly dose of EPO alfa during the study. No safety concerns were raised, including positive anti-EPO antibodies.
Conclusion: In this study of anemia therapy among patients with end-stage renal disease on hemodialysis therapy, the SC injection of lyophilized powder EPO alfa was well tolerated and effectively maintained hemoglobin levels. Future studies of larger size and longer duration will be required to assess safety profiles.
Keywords: anemia, hemodialysis, lyophilized powder, erythropoietin, subcutaneous injection
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