Abstract
Therapeutical monoclonal antibodies are structurally and functionally complex, whereas the innovator’s manufacturing processes are proprietary. With respect to the similarity assessment, a proposed biosimilar product needs to demonstrate a side-by-side comparison between the reference product (RP) and candidate product in terms of physicochemical properties and biological activities, as well as nonclinical and clinical outcomes. Here, a comprehensive analytical similarity assessment was performed for in-depth comparison of HLX04, China-sourced Avastin® (CN-Avastin®), and Europe-sourced Avastin® (EU-Avastin®) following a tier-based quality attribute (QA) evaluation. A series of orthogonal and state-of-the-art analytical techniques were developed for the assessment. Ten lots of HLX04 were compared with 29 lots bevacizumab RP. Referred to the characterization results, HLX04 is highly similar to the RPs with respect to physicochemical properties and biological functions. In addition, HLX04 was found with similar stability and degradation behaviors upon multiple stressed conditions to bevacizumab. Minor differences were observed in glycosylation, aggregates, FcγRIIIa(F), and FcγRIIIa(V) binding activities; nevertheless, they were evaluated and demonstrated not to impact clinical outcomes. According to the reported clinical results, the totality of evidence, including the pharmacokinetic, efficacy, safety, and immunogenicity, further shows that HLX04 is similar to CN-/EU-Avastin®.
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Acknowledgements
We gratefully thank the scientists of the Department of Analytical Science and Development, Shanghai Henlius Biologics Co., Ltd., for their assistance with experimental execution and figure preparation, as well as the Departments of Manufacturing, Quality Control, and Quality Assurance, Shanghai Henlius Biopharmaceutical Co., Ltd., for HLX04 manufacture and release.
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This work was funded by Shanghai Henlius Biologics Co., Ltd.
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Conceptualization, Zhang L and Zhang ZL; acquisition and analysis, Lu Yu, Yanpeng Xu, Peilan Qin, Pengcheng Shen, Kemeng Liu, Mengdan Fei, Hongya Wang, Yanjing Cao, Lihong Lu, and Wenyuan Gao; supervision, Zhang ZL; writing, original draft preparation, Zhang L and Lu Yu; writing, review and editing, Zhang ZL. All authors have read and agreed to the published version of the manuscript. Zhang ZL is the corresponding author for the manuscript.
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The authors, Lei Zhang, Lu Yu, Yanpeng Xu, Peilan Qin, Pengcheng Shen, Kemeng Liu, Mengdan Fei, Hongya Wang, Yanjing Cao, Lihong Lu, Wenyuan Gao, and Zhongli Zhang, are employees of Shanghai Henlius Biologics Co., Ltd., and declare that they have no other conflicts of interest that might be relevant to the contents of this article.
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Zhang, L., Yu, L., Xu, Y. et al. Demonstrating analytical similarity of a biosimilar HLX04 to bevacizumab with a panel of state-of-the-art methods and tiering of quality attributes. Anal Bioanal Chem 415, 3341–3362 (2023). https://doi.org/10.1007/s00216-023-04716-5
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DOI: https://doi.org/10.1007/s00216-023-04716-5