Immunoassay antibody

An immunoassay antibody is a specialized protein, typically an immunoglobulin, used as a primary reagent in biochemical tests to measure the presence or concentration of a specific analyte (Wild, D., 2013, "The Immunoassay Handbook"). These antibodies function through highly specific binding to an antigen, allowing for the detection of biomarkers, hormones, or drugs in clinical and research settings (Thermo Fisher Scientific, "Overview of ELISA"). While essential for diagnostics and monitoring therapeutic efficacy, immunoassay antibodies are not therapeutic targets themselves; rather, they are tools used to study or quantify targets (NCBI, "Immunoassay"). They are utilized in various formats, such as Enzyme-Linked Immunosorbent Assays (ELISA) and lateral flow assays, to provide critical data for disease diagnosis and management (StatPearls, "Immunoassay"). In the context of drug development, they are used to assess pharmacokinetics and pharmacodynamics but do not serve as the site of action for therapeutic intervention. Consequently, the term refers to a category of laboratory reagents rather than a specific biological molecule targeted for the treatment of disease.

Other names

Detection antibodyCapture antibodyDiagnostic antibodyAnalytical antibody

Not applicable (diagnostic reagent)