Scientists supported by Stand Up To Cancer have developed a test that spots tiny amounts of cancer-specific DNA in blood, allowing them to identify people with early-stage colorectal, breast, lung, and ovarian cancers. “This study shows that identifying cancer early using DNA changes in the blood is feasible and that our high accuracy sequencing method is a promising approach to achieve this goal,” says Victor Velculescu, MD, PhD, professor of oncology at the Johns Hopkins Kimmel Cancer Center and co-leader of the SU2C-Dutch Cancer Society Dream Team on Molecular Early Detection of Colorectal Cancer (MEDOCC). A report on the research, performed on blood and tumor tissue samples from 200 people with all stages of cancer in the U.S., Denmark and the Netherlands, appears as the cover story in the Aug. 16, 2017, issue of Science Translational Medicine, a major scientific journal.