alexa Purification of an Fc-fusion biologic: clearance of multiple product related impurities by hydrophobic interaction chromatography.
Pharmaceutical Sciences

Pharmaceutical Sciences

Pharmaceutica Analytica Acta

Author(s): Evans DR, Macniven RP, Labanca M, Walker J, Notarnicola SM

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Abstract An hydrophobic interaction chromatography step was developed for the large-scale production of an Fc-fusion biologic. Two abundant product-related impurities were separated from the active monomer using a Butyl resin and a simple step-wash and step-elution strategy. Capacity and resolution of the HIC step was optimal when sodium sulfate was employed as the lyotropic salt and pore size of the Butyl resin was 750A. Factorial analysis identified critical parameters for the Butyl chromatography and an operating window capable of delivering high product quality and yield over a broad column loading range. This article was published in J Chromatogr A and referenced in Pharmaceutica Analytica Acta

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