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Updated: Aug 21, 2025
Homogeneous Glycoconjugate Produced by Combined Unnatural Amino Acid Incorporation and Click-Chemistry for Vaccine Purposes
Published on: December 19, 2020
Development of a New Solid-Phase Extraction Base Method for Free Saccharide Content Estimation of Meningococcal
Riccardo De Ricco1, Francesca Rech1, Valeria Onnis1
1Technical R&D, GSK, Via Fiorentina 1, Siena 53100, Italy.
Abstract:
GlaxoSmithKline (GSK) is currently developing a fully liquid presentation to ease the administration of the licensed quadrivalent conjugate vaccine (Menveo) against meningococcal serogroup A, C, W, and Y (MenACWY) infections. Herein, we report a new method for determining the free saccharide (FS) content of CRM197-MenACWY conjugated antigens, with the aim of improving accuracy and reproducibility. Mathematical models have been used to support technical knowledge in reducing the need for experimental development. This results in an improved, faster, and platform-based technique for FS separation with one single pretreatment applicable to all antigens of the multivalent meningococcal vaccine.
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