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The analysis of biomarkers by ligand-binding assays offers significant challenges compared with the bioanalysis of small and large molecule drugs. The presence of endogenous analyte is a commonly cited issue.… Click to show full abstract
The analysis of biomarkers by ligand-binding assays offers significant challenges compared with the bioanalysis of small and large molecule drugs. The presence of endogenous analyte is a commonly cited issue. Also the sourcing and application of appropriate calibration or reference standards can present many issues. One of the main challenges is ensuring the continuity and validity of biomarker data when the source or lot number of calibration standard changes within or between studies. Several strategies exist in attempting to deal with this and standardize the biomarker data through the assay life or looking for ways to compare and normalize biomarker data. In this manuscript, the European Bioanalysis Forum view on dealing with calibration standards in biomarker assays is described.
Journal Title: Bioanalysis
Year Published: 2017
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