A study of the degradation profiles of drugs based on recombinant monoclonal antibodies under stress conditions made it possible to determine the dynamics and mechanisms of degradation processes, to identify drug degradation products, and to reveal differences in the stability of biosimilar drugs for relatively short times. A strategy for accelerated (35 d) stability assessment under stress conditions of the original product Soliris® (Switzerland) and its biosimilar PRK-001 (Russia) was proposed. Their degradation profiles after exposure to extreme pH, oxidative stress, and UV radiation were studied. Antibody fragments were analyzed using size-exclusion chromatography, capillary isoelectric focusing, electrophoresis, and mass spectrometry. Both products showed similar degradation profiles and similar changes in isoform contents.
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Translated from Khimiko-Farmatsevticheskii Zhurnal, Vol. 55, No. 7, pp. 47 – 54, July, 2021.
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Zybin, D.I., Zhuchenko, M.A., Rassulin, Y.Y. et al. Comparative Study of the Stability of Eculizumab Biosimilar and the Original Drug under Extreme pH, Oxidative Stress, and UV Irradiation Conditions. Pharm Chem J 55, 732–739 (2021). https://doi.org/10.1007/s11094-021-02485-y
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DOI: https://doi.org/10.1007/s11094-021-02485-y