TEST:

Idylla™ BRAF Mutation Test

This is the largest study evaluating Idylla on archival FFPE material. High concordance with traditional methods suggests that Idylla can be used as an alternative approach for Lynch syndrome screening, improving accessibility and reliability of MSI and BRAF testing in challenging archival specimens.

"Seven abstracts from leading research and academic institutions will be presented as posters, highlighting the rapid, fully automated molecular testing capabilities of the Idylla Platform across several different cancer types, including lung cancer, thyroid cancer, endometrial carcinoma and colorectal cancer. Biocartis also continues to focus on melanoma, blood, brain and breast cancer."

The association of LCH with a periapical cyst could be explained by the active surveillance and migration of neoplastic Langerhans-type cells in blood to the site of apical chronic inflammation, in a patient with LCH. Careful attention to morphologic features in conjunction with Langerin IHC, helps exclude other closely-related dendritic tumours. BRAF p. V600E testing, ideally with real-time PCR assays, can help identify patients who may benefit from BRAF inhibitor therapies. New generations of sequencing that cover a large panel of genetic alterations beyond the frequent BRAF p. V600E mutations (e.g. rare in-frame BRAF deletions), could provide valuable information about the extent, prognosis and treatment of LCH patients.

IdyllaTM testing proved to be a reliable and rapid alternative to NGS in the determination of BRAF V600 mutation. Although BRAF. status was available earlier, this had no influence on the treatment decision in most cases.

However, NGS had a 12-day longer TAT compared to EGFR PCR. Gene fusion-panel PCR and NGS identified an additional 11.6% of patients harboring actionable alterations who may benefit from FDA-approved targeted therapies.

Our results suggest that total loss of BRAF in patients with CRC is more likely to be observed in patients with KRAS mutation. A correlation with molecular BRAF status is necessary to definitively assess the benefit of BRAF IHC as an indicative method of BRAF and KRAS status in CRC which could be used as a first alternative in countries with low income.

Regardless, we recommend that Idylla BRAF cases with non-classical amplification curves undergo reflex NGS testing. These findings are likely relevant for other Idylla assays interrogating hotspot mutations in genes such as EGFR, IDH1/2, KRAS, and NRAS.

This report presents the initial analysis of the OPTIMEL study. The variant allele frequency of BRAF mutations in circulating tumor DNA is indicative of the objective response to BRAF and MEK inhibitors, as well as PFS. These findings could potentially influence our approach to managing patients with MM harboring a BRAF mutation.

BRAF V600E mutation was identified in 15 out of 40 secondary tumors with lymph node location (37.5%) and in 6 out of 15 secondary tumors with another location (40%) without statistically significant differences between the mutation frequency and the location of the secondary tumors. Our results support MM high genetic heterogeneity, pointing out the relationship between BRAF V600E mutation and several clinicopathological characteristics, in primary and metastatic MMs, stressing the importance of BRAF testing implementation in Romania.

"Biocartis...announces that it will host a free corporate workshop at the Annual Meeting of the ‘Association for Molecular Pathology’ (AMP), a leading molecular diagnostics conference, taking place between 14-18 November 2023 in Salt Lake City, Utah (US)."

Melanin bleaching can be a double-edged sword: The melanin may disappear, but the tissue's morphology and integrity of nuclear contents may be compromised. KMnOâ‚„ frequently compromises structural integrity and antigenicity in IHC. Thus, a gentler Hâ‚‚Oâ‚‚ treatment was selected for the molecular analysis of moderately/heavily pigmented melanomas.

The rapid demise of these two patients with BRAF V600E-mutant AML highlights their poor prognosis. Few cases of BRAF V600E-mutant AML have been described in the literature, all of which reported poor survival. Intriguingly, most cases exhibited monocytic morphology and concurrent KMT2A rearrangements, as was observed in case 2.