PT - JOURNAL ARTICLE AU - Iaccarino, Antonino AU - Pisapia, Pasquale AU - Pepe, Francesco AU - Sgariglia, Roberta AU - Nacchio, Mariantonia AU - Russo, Gianluca AU - Gragnano, Gianluca AU - De Luca, Caterina AU - Troncone, Giancarlo AU - Malapelle, Umberto TI - Liquid biopsy for <em>BRAF</em> mutations testing in non-small cell lung cancer: a retrospective study AID - 10.1136/jclinpath-2020-207107 DP - 2022 Jan 01 TA - Journal of Clinical Pathology PG - 58--60 VI - 75 IP - 1 4099 - http://jcp.bmj.com/content/75/1/58.short 4100 - http://jcp.bmj.com/content/75/1/58.full SO - J Clin Pathol2022 Jan 01; 75 AB - V-Raf murine sarcoma viral oncogene homolog B (BRAF) gene mutations have recently been approved to select advanced stages non-small cell lung cancer (NSCLC) patients for tyrosine kinase inhibitors treatments. In this setting, liquid biopsy may represent a valuable option for BRAF mutational testing in patients without tissue availability. Here, we reviewed 196 plasma based liquid biopsies analysed by an in-house developed next generation sequencing panel, termed SiRe. On the overall, 6 (3.1%) out of 196 BRAF mutated cases were identified, with an overall median allelic frequency of 3.4%. Exon 15 p.V600E was the most common detected mutation (2/6, 33.3%). Our data highlighted that the SiRe panel is a robust tool for BRAF mutation assessment on circulating tumour DNA. Further investigation is required to develop a diagnostic algorithm to harmonise BRAF testing on tissue and blood in advanced stages NSCLC patients.