Need for a risk-based control strategy for managing glycosylation profile for biosimilar products

Rathore, Anurag S.; Malani, Himanshu

doi:10.1080/14712598.2021.1973425

Cited by 4 publications

(1 citation statement)

References 101 publications

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“…As The glycan characterization matrix also facilitates risk-based assessments of glycanrelated CQAs and their potential impact on efficacy, PK, safety, and immunogenicity. As suggested by Rathore and Malani, such assessments should also focus, besides criticality, on the abundance of relevant glycan features in a molecule [99]. To this end, the glycan characterization matrix provides quantitative metrics for the overall content of glycanrelated CQAs, such as sialic acid, Neu5Gc, HM, as well as the sialylation extent of the fused domains.…”

Section: Glycositementioning

confidence: 99%

Innovative Metrics for Reporting and Comparing the Glycan Structural Profile in Biotherapeutics

2023

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Glycosylation is a critical quality attribute in biotherapeutics, impacting properties such as protein stability, solubility, clearance rate, efficacy, immunogenicity, and safety. Due to the heterogenic and complex nature of protein glycosylation, comprehensive characterization is demanding. Moreover, the lack of standardized metrics for evaluating and comparing glycosylation profiles hinders comparability studies and the establishment of manufacturing control strategies. To address both challenges, we propose a standardized approach based on novel metrics for a comprehensive glycosylation fingerprint which greatly facilitates the reporting and objective comparison of glycosylation profiles. The analytical workflow is based on a liquid chromatography–mass spectrometry-based multi-attribute method. Based on the analytical data, a matrix of glycosylation-related quality attributes, both at site-specific and whole molecule level, are computed, which provide metrics for a comprehensive product glycosylation fingerprint. Two case studies illustrate the applicability of the proposed indices as a standardized and versatile approach for reporting all dimensions of the glycosylation profile. The proposed approach further facilitates the assessments of risks associated with changes in the glycosylation profile that may affect efficacy, clearance, and immunogenicity.

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Section: Glycositementioning

confidence: 99%