• Curr Med Res Opin · Jun 2019

    Comparative Study

    Safety concerns of biosimilar hormone products.

    • Alexander A Soldatov, Jeanne I Avdeeva, Nickolay A Kryuchkov, and Elena S Skosyreva.
    • a Federal State Budgetary Institution «Scientific Centre for Expert Evaluation of Medicinal Products» of the Ministry of Health of the Russian Federation , Moscow , Russian Federation.
    • Curr Med Res Opin. 2019 Jun 1; 35 (6): 1003-1009.

    BackgroundCurrently, biotherapeutic medicines are the most effective options for the treatment of many severe and chronic diseases. For faster market entry of biotherapeutic products and their cost reduction, the principles of "biosimilarity" have been developed. Development and licensing of biosimilars is allowed only after the end of patent exclusivity of the original preparation period.PurposeCharacteristics of the main safety parameters of biosimilar hormone preparations licensed by EMA.MethodsThis paper analyzes the results demonstrating the similarities and differences between biosimilar and reference hormone products indicated in the EPAR (public assessment report) for the examination of materials presented for the licensing of biosimilar products.ResultsDuring the development of biosimilar hormone medicines, differences in the glycosylation profile between biosimilar and reference preparations are revealed. As biotherapeutical preparations are produced by cells, the differences in glycosylation profile between biosimilar and referent preparation are predictable. While carrying out clinical studies, a high similarity of biosimilar and reference product effectiveness is shown, but some differences between them in the safety profile are revealed.ConclusionsThe study of biosimilar product safety has shown the necessity of further improvement in safety and standard approaches for the assessment of the immunogenicity of biosimilar products.

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