Cited by 350Biosimilars and Bioanalytical MethodsProtein purification and stabilityMonoclonal and Polyclonal Antibodies Research

Impact of Product-Related Factors on Immunogenicity of Biotherapeutics

Singh, Satish Kumar·2011·Journal of Pharmaceutical Sciences

Abstract

All protein therapeutics have the potential to be immunogenic. Several factors, including patient characteristics, disease state, and the therapy itself, influence the generation of an immune response. Product-related factors such as the molecule design, the expression system, post-translational modifications, impurities, contaminants, formulation and excipients, container, closure, as well as degradation products are all implicated. However, a critical examination of the available data shows that clear unequivocal evidence for the impact of these latter factors on clinical immunogenicity is lacking. No report could be found that clearly deconvolutes the clinical impact of the product attributes on patient susceptibility. Aggregation carries the greatest concern as a risk factor for immunogenicity, but the impact of aggregates is likely to depend on their structure as well as on the functionality (e.g., immunostimulatory or immunomodulatory) of the therapeutic. Preclinical studies are not yet capable of assessing the clinically relevant immunogenicity potential of these product-related factors. Simply addressing these risk factors as part of product development will not eliminate immunogenicity. Minimization of immunogenicity has to begin at the molecule design stage by reducing or eliminating antigenic epitopes and building in favorable physical and chemical properties.

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Crossref · 10.1002/jps.22276

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  • Sequence alone is not a reliable predictor of immunogenicity; determinants of immunogenicity include product characteristics such as oxidation and deamidation sites, as well as target biology, patient population, dosing routes, and regimen.

    “However, sequence alone is not a reliable predictor of immunogenicity. Determinants of immunogenicity include product characteristics such as oxidation and deamidation sites, as well as target biology, patient population, dosing routes, and regimen.47”
  • Generation of ADAs is a multi-factorial issue and depends upon patients' genetic background and disease history as well as quality attributes of the protein therapeutics, particularly presence of aggregates and other degradants even in very minute quantities.

    “Generation of ADAs is a multi-factorial issue and depends upon patients genetic background and disease history as well as quality attributes of the protein therapeutics, particularly, presence of aggregates and other degradants even in very minute quantities [190, 191].”

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Authors
Singh, S. K.
Affiliations
Pfizer (United States) (US)
Corresponding author
Singh, Satish Kumar
Venue
Journal of Pharmaceutical Sciences
Publisher
Elsevier BV
Published
2011-02
Volume
100
Issue
2
Pages
354-387
ISSN
0022-3549 (ISSN-L)
OpenAlex
W2008138329
Cited by
350
References
290
Citations by year
2026: 9 · 2025: 12 · 2024: 17 · 2023: 16 · 2022: 10 · 2021: 33 · 2020: 25 · 2019: 21 · 2018: 27 · 2017: 21 · 2016: 24 · 2015: 38 · 2014: 24 · 2013: 26 · 2012: 35
FWCI
1.86
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Pharmaceutical Sciences (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Biosimilars and Bioanalytical Methods
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein purification and stability
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
Keywords
immunogenicity, biologic therapy, therapeutic proteins, aggregation, post-translational modification, container closure systems, degradation products, expression systems, antigenic determinants, immunomodulatory proteins
MeSH terms
Animals, Antibody Formation, Biotechnology, Humans, Protein Processing, Post-Translational, Proteins

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