Biocartis Group NV announces the U.S. Food and Drug Administration (FDA) 510(k) clearance for its fully automated Idylla™ MSI Test. This 510(k) clearance reinforces Biocartis' commitment to enable clinical molecular diagnostics in the U.S. Now, labs of all sizes can benefit from Idylla™'s high sensitivity, unmatched ease-of-use, and rapid turnaround times. MSI is the result of inactivation of the body's so-called DNA mismatch repair (MMR) system, which normally spontaneously corrects errors that occur during DNA replication.

In case this MMR system does not function properly, microsatellite instability occurs. MSI-High (MSI-H) is detected in approximately 15% of all colorectal cancers and 3% are associated with Lynch syndrome, whereas the other 12% have sporadic disease2. Lynch syndrome is the most common cause of hereditary colorectal cancer and is caused by inherited changes (mutations) in genes that affect DNA mismatch repair.

The Idylla™ MSI Test is cleared for in-vitro diagnostic use on the Biocartis Idylla™ System only. The Idylla™ MSI Test, for use on the Idylla™ System, uses formalin-fixed, paraffin-embedded (FFPE) tissue sections of human CRC tumor, from which nucleic acids are liberated, then analyzed using PCR amplification of seven monomorphic biomarkers (ACVR2A, BTBD7, DIDO1, MRE11, RYR3, SEC31A and SULF2) and subsequent melt-curve analysis. The Idylla™ MSI Test reports results as either microsatellite stable (MSS), or microsatellite instability high (MSI-H) or invalid.

Idylla™ MSI Test is indicated for use by healthcare professionals for the qualitative identification of microsatellite instability (MSI) in colorectal cancer (CRC) tumors, indicative of mismatch repair deficiency, as an aid in the identification of potential Lynch syndrome to help identify patients that would benefit from additional genetic testing to diagnose Lynch syndrome. The results from the Idylla™ MSI Test should be interpreted by healthcare professionals in conjunction with other clinical findings, family history, and other laboratory data. The Idylla™ MSI Test should not be used for diagnosis of CRC.

The clinical performance of this device to guide treatment decision for MSI high patients has not been established.