Figure 7.

Clinical use cases for liquid biopsy in cancer. Liquid biopsy can be used to inform multiple decision points along the entire continuum of cancer care: (1) Cancer screening at regular intervals in patients deemed to be at higher risk for cancer based on age and/or breed; (2) Aid in diagnosis in patients who present with clinical signs (including incidental findings on imaging or laboratory tests) that are suspicious for cancer; (3) Targeted treatment selection based on the unique mutational profile of the tumor in patients diagnosed with cancer; (4) Minimal residual disease detection following a curative-intent intervention (such as surgery); (5) Treatment response monitoring at regular intervals during extended-duration therapeutic regimens; (6) Recurrence monitoring at regular intervals after complete remission or presumed cure.