In a recent study, researchers looked at a new way to track a cancer's growth: measuring the amount of DNA that shakes loose from a cancer cell and floats freely in the blood, called circulating tumor DNA. Doctors hope to use these measurements to assess how a patient's tumor responds to treatment, according to the study, which included 30 women with advanced breast cancer and was led by the University of Cambridge in the United Kingdom. Read more here.
Study mentioned: Dawson SJ, et al. Analysis of Circulating Tumor DNA to Monitor Metastatic Breast Cancer. N Engl J Med. 2013 Mar 13. [Epub ahead of print] PMID: 23484797
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