Researchers at Philadelphia conference announce progress toward noninvasive colon cancer test

October 29, 2010

The Philadelphia Inquirer

The Holy Grail of colorectal cancer prevention - a reliable screening test that users don't dread and avoid - appears to be getting close.

A novel test that detects telltale DNA markers in stool samples correctly identified 85 percent of colon cancers, 64 percent of significant precancerous polyps, and 90 percent of healthy samples, researchers announced Thursday in Philadelphia at a conference held by the American Association for Cancer Research.

There is no other noninvasive screening test for colon cancer that comes close to that accuracy rate, said David Ahlquist, a Mayo Clinic researcher who invented part of the technology and who is working with the commercial developer, Exact Sciences of Madison, Wis... READ MORE