Biosimilar & Bispecific Antibodies for Preclinical In Vivo Research

InVivoSIM™ biosimilar antibodies from Bio X Cell are research-grade monoclonal antibodies that have the same variable-region amino acid sequence as the reference therapeutic antibody. These antibodies enable researchers to study drug mechanisms, function, and efficacy without sourcing expensive pharmaceutical-grade material. InVivoSIM™ offerings also include biosimilar bispecific antibodies that simultaneously bind two targets, allowing researchers to investigate dual-target strategies.

InVivoSIM™ antibodies feature validated binding specificity, ultra-low endotoxin levels (≤0.5 EU/mg), and are free from preservatives, stabilizers, and carrier proteins, making them ideal for in vivo applications such as drug efficacy studies in humanized mouse models. Lot-specific Certificates of Analysis (CoAs) are available for every product and can be readily shared with veterinarians, lab managers, and vivarium managers, ensuring transparency, compliance, and confidence in every experiment.

Need more than off-the-shelf antibodies? Bio X Cell Antibody Production Services provide flexible solutions from hybridoma and mammalian expression to custom recombinant engineering, gram-scale manufacturing, and advanced conjugation to power your next breakthrough discovery. See all custom service capabilities.

Do you have questions? Visit our FAQs page, contact us by email customerservice@bioxcell.com or call +1-866-787-3444.