November 14, 2018
Researchers find a new way to detect small traces of tumour DNA in blood and determine the tumour’s tissue of origin
A blood sample can be used to detect and monitor certain cancers in select patients, but there are significant technical barriers that prevent the widespread adoption of this “liquid biopsy”. This type of blood test analyzes the rare traces of tumour DNA that are circulating in the blood, but distinguishing tumour DNA from healthy DNA is both difficult and expensive. New methods are needed to improve the accuracy, sensitivity and cost-effectiveness of liquid biopsies so that more patients can benefit from this less-invasive test.