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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.
Disclaimer
The views and conclusion presented in this paper are those of the European Bioanalysis Forum and do not necessarily reflect the representative affiliation or company’s position on the subject.
Financial & competing interests disclosure
The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.
No writing assistance was utilized in the production of this manuscript.
Acknowledgements
The authors would like to thank the EBF-IGM members for their contributions and impact to our topic team.