New Blood Test for Prostate Cancer?

by Playfuls Staff | 27th April 2007

A new discovery newly discovered blood protein may change the way men are screened for prostate cancer. A Seattle based biotechnology company, Onconome, announced the results of a research study conducted at The Johns Hopkins School of Medicine. [more]

The study relates to a blood protein, ProstaMark EPCA-2 (Early Prostate Cancer Antigen). The simple to use blood test detected an unprecedented 94 percent of men with prostate cancer and correctly identified 97 percent of men who don't have the disease, according to the Hopkins study.

The study was conducted by Robert H. Getzenberg PhD, professor of urology and director of research at the James Buchanan Brady Urological Institute at the Johns Hopkins University School of Medicine, was underwritten by a grant from Onconome, and appeared today in the medical journal Urology.

In the last year the standard test to detect prostate cancer has been prostate-specific antigen (PSA). However, it is not highly specific or sensitive. For example, 80 percent of patients with elevated PSA levels do not have prostate cancer and 15 percent of patients with normal PSA levels do have prostate cancer.

By contrast, the research study showed that the EPCA-2 test is negative in 97 percent of men who do not have prostate cancer and is positive in 94 percent of men with prostate cancer. "The study also shows that EPCA-2 levels are highest in patients with non-organ confined prostate cancer, which is important because cancer that has spread outside of the prostate is much more deadly," said Dr. Getzenberg.

"As a company committed to discovering and developing innovative biomarkers for the early and accurate detection of disease, we appreciate the vast implications of this technology," said Ray Cairncross, Onconome's CEO and Co-Founder. Onconome has exclusive, worldwide rights to the technology.

"The results from the Johns Hopkins University research study demonstrate that the ProstaMark(R) EPCA-2 test is highly specific and sensitive to prostate cancer and could greatly reduce the number of unnecessary prostate biopsies," continued Cairncross. As exclusive licensee, Onconome will focus on optimizing the blood test for routine clinical use.

Onconome is focused on the discovery, development and commercialization of innovative biomarkers for the early detection of not only prostate cancer but also other types of cancer, such as colon.


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