Characterization and validation of a middle-down hydrophobic interaction chromatography method to monitor methionine oxidation in IgG1

Post-translational modifications (PTMs) of therapeutic monoclonal antibodies (mAbs) can impact the efficacy of a drug. Methionine oxidation can alter the overall hydrophobicity of an antibody, thereby inducing conformational changes and affecting its biological activity. To ensure high quality, safe...

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Main Authors: Somar Khalil, Nisha Patel, Francoise Bevillard-Kumar, Cyrille Chéry, William Burkitt, John O’Hara, Annick Gervais
Format: Article
Language:English
Published: Elsevier 2023-06-01
Series:Journal of Pharmaceutical and Biomedical Analysis Open
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Online Access:http://www.sciencedirect.com/science/article/pii/S2949771X23000087
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author Somar Khalil
Nisha Patel
Francoise Bevillard-Kumar
Cyrille Chéry
William Burkitt
John O’Hara
Annick Gervais
author_facet Somar Khalil
Nisha Patel
Francoise Bevillard-Kumar
Cyrille Chéry
William Burkitt
John O’Hara
Annick Gervais
author_sort Somar Khalil
collection DOAJ
description Post-translational modifications (PTMs) of therapeutic monoclonal antibodies (mAbs) can impact the efficacy of a drug. Methionine oxidation can alter the overall hydrophobicity of an antibody, thereby inducing conformational changes and affecting its biological activity. To ensure high quality, safety, and efficacy of mAbs, routine monitoring of PTMs such as methionine (Met) oxidation is essential. Met oxidation in the fragment crystallizable (Fc) region of immunoglobulin-G1 (IgG1) is a potential critical quality attribute because it impacts not only the interaction with the neonatal Fc receptor and protein A but also the half-life of mAbs in serum circulation. Although bottom-up mass spectrometry provides high site specificity, it may have limited application in quality control workflows, and its complicated sample preparation could result in procedure-induced oxidation. In this study, we describe the development and characterization of a rapid and robust middle-down hydrophobic interaction chromatography method for monitoring Met oxidation in the Fc region of IgG1. Additionally, we assessed a comprehensive method validation package and demonstrated the specificity, linearity, precision, and accuracy of the new method within a range of 3.8–37.7%. The relative quantitative data provided by this method may be used in a regulated workflow to support process and formulation development as well as in the later stages of drug development and batch release and stability studies.
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spelling doaj-art-a78f202ed3454585bd43fc9b3dfb70442025-08-20T02:51:38ZengElsevierJournal of Pharmaceutical and Biomedical Analysis Open2949-771X2023-06-01110000810.1016/j.jpbao.2023.100008Characterization and validation of a middle-down hydrophobic interaction chromatography method to monitor methionine oxidation in IgG1Somar Khalil0Nisha Patel1Francoise Bevillard-Kumar2Cyrille Chéry3William Burkitt4John O’Hara5Annick Gervais6Department of Analytical Science Biologicals, UCB, Braine L’Alleud, Belgium; Correspondence to: Chemin du Foriest 1, Braine L’Alleud 1420, Belgium.Department of Biomolecular Formulation and Characterization Sciences, UCB, Slough, United KingdomDepartment of Analytical Science Biologicals, UCB, Braine L’Alleud, BelgiumDepartment of Analytical Science Biologicals, UCB, Braine L’Alleud, BelgiumDepartment of Biomolecular Formulation and Characterization Sciences, UCB, Slough, United KingdomDepartment of Biomolecular Formulation and Characterization Sciences, UCB, Slough, United KingdomDepartment of Analytical Science Biologicals, UCB, Braine L’Alleud, BelgiumPost-translational modifications (PTMs) of therapeutic monoclonal antibodies (mAbs) can impact the efficacy of a drug. Methionine oxidation can alter the overall hydrophobicity of an antibody, thereby inducing conformational changes and affecting its biological activity. To ensure high quality, safety, and efficacy of mAbs, routine monitoring of PTMs such as methionine (Met) oxidation is essential. Met oxidation in the fragment crystallizable (Fc) region of immunoglobulin-G1 (IgG1) is a potential critical quality attribute because it impacts not only the interaction with the neonatal Fc receptor and protein A but also the half-life of mAbs in serum circulation. Although bottom-up mass spectrometry provides high site specificity, it may have limited application in quality control workflows, and its complicated sample preparation could result in procedure-induced oxidation. In this study, we describe the development and characterization of a rapid and robust middle-down hydrophobic interaction chromatography method for monitoring Met oxidation in the Fc region of IgG1. Additionally, we assessed a comprehensive method validation package and demonstrated the specificity, linearity, precision, and accuracy of the new method within a range of 3.8–37.7%. The relative quantitative data provided by this method may be used in a regulated workflow to support process and formulation development as well as in the later stages of drug development and batch release and stability studies.http://www.sciencedirect.com/science/article/pii/S2949771X23000087Hydrophobic interactionsIdeS proteaseFragment crystallizable regionMethionine oxidationMethod developmentMonoclonal antibodies
spellingShingle Somar Khalil
Nisha Patel
Francoise Bevillard-Kumar
Cyrille Chéry
William Burkitt
John O’Hara
Annick Gervais
Characterization and validation of a middle-down hydrophobic interaction chromatography method to monitor methionine oxidation in IgG1
Journal of Pharmaceutical and Biomedical Analysis Open
Hydrophobic interactions
IdeS protease
Fragment crystallizable region
Methionine oxidation
Method development
Monoclonal antibodies
title Characterization and validation of a middle-down hydrophobic interaction chromatography method to monitor methionine oxidation in IgG1
title_full Characterization and validation of a middle-down hydrophobic interaction chromatography method to monitor methionine oxidation in IgG1
title_fullStr Characterization and validation of a middle-down hydrophobic interaction chromatography method to monitor methionine oxidation in IgG1
title_full_unstemmed Characterization and validation of a middle-down hydrophobic interaction chromatography method to monitor methionine oxidation in IgG1
title_short Characterization and validation of a middle-down hydrophobic interaction chromatography method to monitor methionine oxidation in IgG1
title_sort characterization and validation of a middle down hydrophobic interaction chromatography method to monitor methionine oxidation in igg1
topic Hydrophobic interactions
IdeS protease
Fragment crystallizable region
Methionine oxidation
Method development
Monoclonal antibodies
url http://www.sciencedirect.com/science/article/pii/S2949771X23000087
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