Freelite™ is a major breakthrough for the detection and monitoring of Multiple Myeloma (MM) and other B-cell dyscrasia. Freelite™ assays were developed by Binding Site to measure free lambda and free kappa immunoglobulin light chains. Our expertise in the manufacture of antibodies has enabled us to provide a quantifiable, highly specific, automatable free light chain assay for serum.
Significant clinical evidence indicates the benefit of Freelite™ serum free light chain assays in initial screening for monoclonal gammopathies. Other benefits include the identification of AL amyloidosis and Nonsecretory MM patients missed by conventional electrophoretic methods, use as a prognostic indicator for progression in myeloma, for risk stratification of MGUS patients, and rapid evaluation of treatment efficacy.
Freelite™ is a sensitive, specific marker of kappa and lambda free light chains (FLC) in serum and provides quantitative measurement of:
Free kappa in serum
Free lambda in serum
The serum free kappa/free lambda ratio (κ/λ)
The serum free light chain ratio is a strong indicator of monoclonality and is valuable for distinguishing monoclonal from polyclonal diseases.
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