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When to Wait and When to Treat? New Program Will Search for Biomarkers in Men With Prostate Cancer to Help Find an Answer
Date:5/2/2008

SEATTLE, May 2 /PRNewswire/ -- Researchers at Fred Hutchinson Cancer Research Center have a lead role in a new public/private partnership to create the first systematic surveillance program of men with prostate cancer to look for biological clues to help determine when to wait and when to treat the disease. The project was announced by the Canary Foundation and the National Cancer Institute.

Peter Nelson, M.D., of the Hutchinson Center's Clinical Research and Human Biology divisions, will lead the Canary Prostate Consortium. This group of six institutions nationwide will enroll men in a cancer-surveillance study to look for biomarkers -- proteins in the blood that could predict prostate-tumor aggressiveness.

The new study is meant to help answer a key question that has vexed physicians and researchers: When is it best to treat prostate cancer versus observation or "watchful waiting." For most men with prostate cancer, the disease never progresses to become a serious health problem, yet most receive some sort of treatment, such as radiation or surgery. Such treatments can have side effects, such as impotence and incontinence, which can be worse than the low-grade cancer. Currently it is challenging to accurately predict when inactive or slow-growing prostate tumors will become aggressive.

"There's an emerging consensus that we dramatically over treat prostate cancer in general," said Nelson. "The overall prevalence of the disease in the population far exceeds the number of men whose disease progresses to cause serious problems. Yet, there are clearly many prostate cancers that behave aggressively and patients benefit from treatment. It is a challenging problem."

In the study, men diagnosed with early-stage prostate cancer will not be treated right away but will be closely followed in an active surveillance program involving regular collection of blood and urine samples as well as prostate biopsies. A new repository for blood and DNA
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SOURCE Fred Hutchinson Cancer Research Center
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