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New prostate cancer screening test shows promise for diagnosis
Date:8/15/2011

CLEVELAND - A new prostate screening test developed by AnalizaDx, Inc., a Cleveland-based biotech company, and studied by researchers at the Seidman Cancer Center at University Hospitals (UH) Case Medical Center along with colleagues at the Cleveland Clinic, the Veterans Administration Boston Healthcare and the National Cancer Institute, may prove to be a promising new tool in the diagnosis of prostate cancer. The study which will be published in the September issue of Urology found that this new screening test, the PSA/SIA assay, may be more sensitive in detecting prostate cancer than traditional screening methods.

"This has the potential to be a major advance in the development of more accurate tests for prostate cancer diagnosis," says Mark Stovsky, MD, Principal Investigator and lead author of the study, urologist at UH Case Medical Center and Associate Professor of Urology at Case Western Reserve University School of Medicine. "Prostate cancer is the most common cancer in men but traditional screening is not very accurate. This test provides a new way to look at prostate cancer diagnosis utilizing a novel biological assay which differentiates PSA molecular structures arising from cancer versus non-cancerous glands."

The accuracy of traditional prostate cancer screening (serum prostate-specific antigen or PSA) is limited by both relatively high false positive and false negative rates. Current diagnostic strategies that use total PSA to determine the need for biopsy demonstrate false positive rates of approximately 55-75 percent. This finding can therefore lead to unneeded prostate biopsies and unnecessary worry in patients. Additionally, the serum PSA test carries, in some studies, false negative rates of up to 15 percent, meaning that some men with 'normal' PSA values actually have cancer. What is needed is a test that can more accurately predict the presence of prostate cancer on biopsy.

Working with AnalizaDx, Inc., Dr. Sto
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Contact: Alicia Reale
alicia.reale@uhhospitals.org
216-844-5158
University Hospitals Case Medical Center
Source:Eurekalert

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