Journal
BIOANALYSIS
Volume 3, Issue 5, Pages 523-534Publisher
FUTURE SCI LTD
DOI: 10.4155/BIO.11.16
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Ligand-binding assays are the standard technology used for bioanalysis of therapeutic proteins, for example, for drug quantification (pharmacokinetics assays) and immunogenicity testing (antidrug antibody assays). Besides the selection of the most suitable technology platform (e.g., ELISA, electrochemiluminescence assays and surface plasmon resonance assays) and assay procedure, a pivotal prerequisite for good assay performance on any technology platform is the design, production and characterization of high quality reagents. To enable bioanalytical project support over the complete product life cycle, an appropriate long-term reagent supply is needed. This perspective describes our opinion on the requirements for generation and QC of critical reagents used in ligand-binding assays for drug quantification and antidrug antibody detection to enable high-quality assays and long-term supply, including reagent batch switches. The critical parameters during reagent design, production and long-term supply, along with the appropriate analytical methods for QC testing and appropriate certification, are discussed.
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