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  • Title: An extended range generic immunoassay for total human therapeutic antibodies in preclinical pharmacokinetic studies.
    Author: Hall CM, Pearson JT, Patel V, Wienkers LC, Greene RJ.
    Journal: J Immunol Methods; 2013 Jul 31; 393(1-2):70-3. PubMed ID: 23570944.
    Abstract:
    Bioanalytical support of discovery programs for human monoclonal antibody therapies involves quantitation by immunoassay. Historically, preclinical samples have been analyzed by the traditional Enzyme-Linked Immuno-Sorbent Assay (ELISA). We investigated transferring our generic ELISA for quantitating human IgG constructs in preclinical serum samples to an automated microfluidics immunoassay platform based on nanoscale streptavidin bead columns. Transfer of our immunoassay to the automated platform resulted in not only the anticipated reduction in analysts' time required for manual manipulation (ELISA) but also a substantial increase in the dynamic range of the immunoassay. The generic nature and wide dynamic range of this automated microcolumn immunoassay permit bioanalytical support of novel therapeutic candidates without the need to develop new, specific assay reagents and minimize the chances that sample reassays will be required due to out of range concentration results. Improved process efficiencies and enhanced workflow during the analysis of preclinical PK samples that enable high throughput assessment of a human monoclonal antibody lead in early discovery programs.
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