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  2. Vol 54, No 3 (2022)
  3. Angginy

Cohort Prospective Study to Evaluate Immunogenicity of Epodion® (Biosimilar Epoetin-α) in Anemia Associated with Chronic Kidney Disease (CKD) Patients

Nova Angginy, Chang Woo Suh, Jonny Jonny, Nuly Juariah Mahnulia, Suhardjono Suhardjono

Abstract


Background: Anemia due to chronic kidney disease (CKD) is often associated with decreased erythropoietin (EPO) levels in the blood. Treatments available are improving blood iron levels and administration of exogenous EPO (rhEPO). This study aims to assess the safety and immunogenicity of Epodion, a biosimilar rhEPO product, in haemodialysis patients with CKD-associated anaemia in three Indonesian hospitals.
Methods: This prospective, open label, single arm, and multicenter study enrolled patients with anemia associated with CKD under hemodialysis treatment. Patient eligibility was assessed within the 4-week screening period. Blood samples for determination of erythropoietin antibody (Anti-Drug Antibody) were taken at week-0, 24, and 52 using a validated and highly sensitive bridging ELISA method. Evaluation of Neutralizing Antibody (NAb) was carried out to confirm the impact of the antibody to pharmacological activity (e.g., antibody-mediated PRCA) when the ADA detection of patients was positive after screening and confirmatory assay. Results: Results from all tested patients show that Epodion could maintain hemoglobin and hematocrit levels. ADA detection using ELISA assay yielded negative results for all plasma samples of week-24 and week-52, so the evaluation of NAb was not carried out. No adverse events were considered relevant to tested product. Conclusion: This study proves no immunogenic effect of Epodion on stimulating immune system’s antibodies in Indonesian patients with CKD-associated anemia.


Keywords


Anemia; anti-drug antibody; anti-rhEPO; chronic kidney disease; erythropoietin

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