Houston doctors closer to blood test for early cancer detection


The blood test was developed at MD Anderson Cancer Center. It's based on a protein called ca-125, which already is used to predict when ovarian cancer recurs.

Houston scientists believe a screening test to look for ca-125 could help catch up to 80 percent of early ovarian cancers, saving many lives. Now seven of every 10 women with ovarian cancer are diagnosed late because there are few symptoms. The new ovarian cancer screening test is already being tested in a huge British study of 200,000 women. Results are expected in two years.

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