Cited by 82Monoclonal and Polyclonal Antibodies ResearchBiosimilars and Bioanalytical MethodsImmunotoxicology and immune responses

Evaluating the Use of Antibody Variable Region (Fv) Charge as a Risk Assessment Tool for Predicting Typical Cynomolgus Monkey Pharmacokinetics

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Bumbaca Yadav, Daniela, Sharma, Vikas K., Boswell, Charles Andrew, Hotzel, Isidro, Tesar, Devin, Shang, Yonglei, Ying, Yong, Fischer, Saloumeh K. +8 more·2015·Journal of Biological Chemistry

Abstract

The pharmacokinetic (PK) behavior of monoclonal antibodies in cynomolgus monkeys (cynos) is generally translatable to that in humans. Unfortunately, about 39% of the antibodies evaluated for PKs in cynos have fast nonspecific (or non-target-mediated) clearance (in-house data). An empirical model relating variable region (Fv) charge and hydrophobicity to cyno nonspecific clearance was developed to gauge the risk an antibody would have for fast nonspecific clearance in the monkey. The purpose of this study was to evaluate the predictability of this empirical model on cyno nonspecific clearance with antibodies specifically engineered to have either high or low Fv charge. These amino acid changes were made in the Fv region of two test antibodies, humAb4D5-8 and anti-lymphotoxin α. The humAb4D5-8 has a typical nonspecific clearance in cynos, and by making it more positively charged, the antibody acquires fast nonspecific clearance, and making it less positively charged did not impact its clearance. Anti-lymphotoxin α has fast nonspecific clearance in cynos, and making it more positively charged caused it to clear even faster, whereas making it less positively charged caused it to clear slower and within the typical range. These trends in clearance were also observed in two other preclinical species, mice and rats. The effect of modifying Fv charge on subcutaneous bioavailability was also examined, and in general bioavailability was inversely related to the direction of the Fv charge change. Thus, modifying Fv charge appears to impact antibody PKs, and the changes tended to correlate with those predicted by the empirical model.

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Crossref · 10.1074/jbc.m115.692434

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  • Yadav et al. demonstrated that modifying Fv charge and hydrophobicity altered mAb PK and s.c. bioavailability; more positive-charged antibody variants showed faster nonspecific clearance than the less positively charged variants or the wildtype.

    “Yadav et al. also demonstrated that modifying Fv charge and hydrophobicity altered mAb PK and s.c. bioavailability42: more positive‐charged antibody variants showed faster nonspecific clearance than the less positively charged variants or the wildtype.”

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Authors
Bumbaca Yadav, D., Sharma, V. K., Boswell, C. A., Hotzel, I., Tesar, D., Shang, Y., Ying, Y., Fischer, S. K., Grogan, J. L., Chiang, E. Y., Urban, K., Ulufatu, S., Khawli, L. A., Prabhu, S., Joseph, S., & Kelley, R. F.
Affiliations
Genentech (US)
Corresponding author
Kelley, Robert F.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2015-12
Volume
290
Issue
50
Pages
29732-29741
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2173513233
Cited by
82
References
46
Citations by year
2026: 2 · 2025: 6 · 2024: 8 · 2023: 11 · 2022: 19 · 2021: 9 · 2020: 3 · 2019: 6 · 2018: 11 · 2017: 5 · 2016: 2
FWCI
4.86
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Life Sciences › Immunology and Microbiology › Immunology › Biosimilars and Bioanalytical Methods
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotoxicology and immune responses
Keywords
cynomolgus monkey pharmacokinetics, monoclonal antibodies, risk assessment, empirical model, hydrophobicity, subcutaneous bioavailability, interspecies extrapolation, antibody engineering
MeSH terms
Animals, Enzyme-Linked Immunosorbent Assay, Immunoglobulin Variable Region, Macaca fascicularis, Pharmacokinetics, Risk Assessment

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