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Journal Article
Validation Studies
Validation of a biotherapeutic immunoaffinity-LC-MS/MS assay in monkey serum: 'plug-and-play' across seven molecules.
Bioanalysis 2016 August
BACKGROUND: Biotherapeutics development requires validated assays in biological matrices for pharmacokinetic assessment. Historically, ligand-binding assays have been the predominant platform available. Recently, alternative hybrid methods, combining ligand-binding analyte enrichment with LC-MS detection have emerged. Methodology & results: The validation of an immunoaffinity (IA)-LC-MS/MS method to quantify a monoclonal antibody biotherapeutic in cynomolgus monkey serum is described. This method includes immunoaffinity capture of the antibody in serum, followed by enzymatic digestion and detection of a framework peptide. Using similar method conditions, six additional biotherapeutic assays were readily validated in different nonhuman mammalian species, including mouse, rat and monkey.
CONCLUSION: The immunoaffinity-LC-MS/MS assay validation results across seven antibody therapeutics, using comparable conditions, illustrate the 'plug-and-play' nature of the IA-LC-MS/MS mAb framework peptide assay format.
CONCLUSION: The immunoaffinity-LC-MS/MS assay validation results across seven antibody therapeutics, using comparable conditions, illustrate the 'plug-and-play' nature of the IA-LC-MS/MS mAb framework peptide assay format.
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