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Predicting the return of prostate cancer: New Johns Hopkins study betters the odds of success
Date:7/2/2009

en whose PSA doubled the fastest, within three months, were more than 20 times more likely to develop metastatic cancer than men whose PSA look longer than 15 months to double.

For men enrolled in the study, it took a median of 10 years for the disease to reappear on imaging scans. "The 10-year average will not apply to every man, so we wanted to know what factors put men at higher risk for their cancer progressing earlier," says Mario Eisenberger, M.D., professor of oncology at the Johns Hopkins Kimmel Cancer Center.

An increase in PSA, or prostate specific antigen, occurs in approximately 20 percent to 30 percent of men after surgery to remove the cancerous prostate, says Antonarakis. In these patients, the newly emerging prostate cancer cells are rarely detectable on imaging scans. When faced with the likelihood that their cancer has spread, many men opt to undergo hormone therapy, which blocks testosterone production, a fuel for prostate cancer. The side effects, which mimic those of menopausal women, include hot flashes, night sweats, osteoporosis, metabolic syndrome and coronary disease, and can be debilitating, says Antonarakis.

Besides immediate hormone therapy, other options for men whose PSA is rising are to use hormone therapy intermittently, enroll in clinical trials testing experimental therapies or combinations of them, or to "watch and wait" until imaging scans can locate metastatic disease.


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Contact: Amy Mone
amone1@jhmi.edu
410-955-1287
Johns Hopkins Medical Institutions
Source:Eurekalert

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