SOPs for Biosimilars V 2.0

To define the procedure for analyzing glycosylation profiles of expressed biosimilar proteins in mammalian cell clones, facilitating clone selection based on critical quality attributes (CQAs).
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To describe the procedure for assessing productivity of biosimilar-expressing cell clones using small-scale cultures to support early clone ranking and upstream development.
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To define the procedure for evaluating the genetic and phenotypic stability of biosimilar-producing clones across extended cell passages under laboratory conditions.
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To outline the procedure for the preparation, qualification, documentation, and storage of Master Cell Banks (MCBs) derived from biosimilar-producing cell lines intended for GMP manufacturing.
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To define the procedure for the generation, labeling, freezing, testing, and storage of the Working Cell Bank (WCB) derived from a qualified Master Cell Bank (MCB) for biosimilar production use.
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To outline the standardized procedure for cryopreservation of biosimilar-producing cell banks including Master Cell Bank (MCB) and Working Cell Bank (WCB), using GMP-compliant freezing and storage processes.
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To define the procedure for safe, sterile, and effective thawing of frozen biosimilar-producing cell stocks including Master Cell Banks (MCB) and Working Cell Banks (WCB) for initiation of cell culture processes.
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To establish a validated procedure for sterility testing of Master Cell Banks (MCB) and Working Cell Banks (WCB) used in biosimilar manufacturing, ensuring absence of microbial contamination as per regulatory standards.
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To define the procedure for performing validated mycoplasma testing of Master Cell Bank (MCB) and Working Cell Bank (WCB) samples to ensure biosafety and GMP compliance for biosimilar manufacturing.
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To define the validated procedure for cell line authentication used in biosimilar production using genetic, morphological, and cytogenetic methods to confirm cell identity and prevent cross-contamination.
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