Approximately 10-40%1 of patients with non-small cell lung cancer show tumor associated mutations in the Epidermal Growth Factor Receptor (EGFR) found on the surface of every cell. Identifying these mutations can help determine what medication a person can receive.
Biopsies have traditionally proven useful in this identification and in predicting response and treatment resistance. The health condition of the patient or the location of the tumor, however, often make it difficult to resect enough tissue for biomarker testing.
Liquid biopsy testing
Liquid biopsy testing is a simple and non - invasive alternative to surgical biopsies which enables doctors to discover a range of information about a tumor through a simple blood sample. This additionally allows for repeat testing to better monitor patient response. (cobas® EGFR Mutation Test (with or without v2) is not approved with a monitoring claim in the U.S.)