Cited by 85Biosimilars and Bioanalytical MethodsMonoclonal and Polyclonal Antibodies ResearchDrug-Induced Adverse Reactions

Pre-existing antibody: biotherapeutic modality-based review

Open access
Gorovits, Boris, Clements-Egan, Adrienne, Birchler, Mary, Liang, Meina, Myler, Heather, Peng, Kun, Purushothama, Shobha, Rajadhyaksha, Manoj +3 more·2016·The AAPS Journal

Abstract

Pre-existing antibodies to biotherapeutic drugs have been detected in drug-naïve subjects for a variety of biotherapeutic modalities. Pre-existing antibodies are immunoglobulins that are either specific or cross-reacting with a protein or glycan epitopes on a biotherapeutic compound. Although the exact cause for pre-existing antibodies is often unknown, environmental exposures to non-human proteins, glycans, and structurally similar products are frequently proposed as factors. Clinical consequences of the pre-existing antibodies vary from an adverse effect on patient safety to no impact at all and remain highly dependent on the biotherapeutic drug modality and therapeutic indication. As such, pre-existing antibodies are viewed as an immunogenicity risk factor requiring a careful evaluation. Herein, the relationships between biotherapeutic modalities to the nature, prevalence, and clinical consequences of pre-existing antibodies are reviewed. Initial evidence for pre-existing antibody is often identified during anti-drug antibody (ADA) assay development. Other interfering factors known to cause false ADA positive signal, including circulating multimeric drug target, rheumatoid factors, and heterophilic antibodies, are discussed.

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  1. Erles K, Sebokova P, Schlehofer JR. Update on the prevalence of serum antibodies (IgG and IgM) to adeno-associated virus (AAV). J Med Virol. 1999;59(3):406-11.

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Authors
Gorovits, B., Clements-Egan, A., Birchler, M., Liang, M., Myler, H., Peng, K., Purushothama, S., Rajadhyaksha, M., Salazar-Fontana, L., Sung, C., & Xue, L.
Affiliations
  • Pfizer (United States) (US)
  • GlaxoSmithKline (United States) (US)
  • Bristol-Myers Squibb (United States) (US)
  • Genentech (US)
  • UCB Pharma (United Kingdom) (GB)
  • Regeneron (United States) (US)
  • Sanofi (United States) (US)
Corresponding author
Gorovits, Boris
Venue
The AAPS Journal
Published
2016-01-28
Volume
18
Issue
2
Pages
311-320
ISSN
1550-7416 (ISSN-L)
OpenAlex
W2288666258
Cited by
85
References
98
Citations by year
2026: 5 · 2025: 14 · 2024: 5 · 2023: 9 · 2022: 6 · 2021: 6 · 2020: 5 · 2019: 13 · 2018: 11 · 2017: 6 · 2016: 5
FWCI
1.13
Type
journal article
Language
en
Open access
Locations
  • The AAPS Journal (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Genentech
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Biosimilars and Bioanalytical Methods
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Health Sciences › Medicine › Pharmacology › Drug-Induced Adverse Reactions
Keywords
pre-existing antibodies, biologic therapy, anti-drug antibodies, immunogenicity, cross-reactive antibodies, carbohydrate epitopes, rheumatoid factor, heterophile antibodies, patient safety
MeSH terms
Animals, Antibodies, Monoclonal, Autoantibodies, Biological Products, Biological Therapy, Humans

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