Results from the study assessing concordance of genomic alterations identified by liquid and tissue biopsy published in Clinical Cancer Research and to be presented at the American Society of Clinical Oncology 2021 Genitourinary Cancers Symposium

San Francisco, CA ( — Foundation Medicine, Inc. and its collaborators announced results from a prostate cancer study evaluating the landscape of genomic alterations identified by liquid biopsy in over 3,000 patients, as well as assessing concordance of liquid and tissue biopsy in over 800 patients. The study demonstrated high concordance between targetable alterations identified using circulating tumor DNA (ctDNA) and tissue-based comprehensive genomic profiling (CGP) in patients with metastatic castration-resistant prostate cancer (mCRPC). It also found that, in many patients, liquid biopsy detects more acquired resistance mechanisms than tissue biopsy. The study, “Genomic analysis of circulating tumor DNA (ctDNA) in 3,334 patients with advanced prostate cancer identifies targetable BRCA alterations and AR resistance mechanisms,” was published online in Clinical Cancer Researcha journal of the American Association for Cancer Research. These data will also be presented as a poster highlight on Feb. 11 at the American Society of Clinical Oncology Genitourinary Cancers Symposium (ASCO GU).