Comprehensive genetic profiling using tissue and blood in locally advanced tumors.

ABSTRACT: Comprehensive genomic profiling (CGP) aims to assist clinicians with the diagnosis, treatment decisions and early detection of recurrence in patients with cancer. CGP using tumor tissue is widely implemented, whereas circulating tumor DNA (ctDNA) analysis is a noninvasive method that uses peripheral blood. This pilot study included eight patients with locally advanced tumors (two each of breast, lung, pancreatic, and head and neck cancers). The concordance of somatic variants with tumor tissues and paired ctDNA from pre‑ and post‑resection samples was evaluated. This study demonstrated that the overall concordance rate in all genes between tissue and postoperative blood was high (94.2%), but the concordance rate in genes with somatic variants was low (4.76%). In patient 8 with head and nec

SUBMITTER: Fujiyoshi K 

PROVIDER: S-EPMC12351229 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature