
Most companion diagnostics approaches will involve more than one analyte, which are known as In Vitro Diagnostic Multi Analyte Assays (IVDMIAs). There is considerable discussion in the regulatory community on the best approach for validation and regulatory approval for IVDMIAs in <a href="http://www.flagshipbio.com/services-2/tissue-biomarker-development/">Companion Diagnostics</a>. These IVDIMAs may even mix serological assays with <a href="http://www.flagshipbio.com/services-2/whole-tissue-analysis/">tissue biomarkers</a>