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Primary androgen deprivation therapy ineffective for most men with early prostate cancer
Date:3/17/2014

WASHINGTON A study of more than 15,000 men with early stage prostate cancer finds that those who received androgen deprivation as their primary treatment instead of surgery or radiation did not live any longer than those who received no treatment.

The research team, led by scientists at Georgetown Lombardi Comprehensive Cancer Center, say that the risks of serious adverse events associated with the treatment which has been linked to impaired cognition, heart disease, diabetes and other disorders "mitigates against any clinical or policy rationale for use of primary androgen deprivation therapy in these men."

The findings, reported Monday in the Journal of Clinical Oncology, draw from cancer registries linked with extensive electronic medical records in three, large integrated health plans. The men included in the study had prostate cancer that had not spread beyond the organ (localized) and did not have surgery or radiation therapy, considered curative treatment.

Androgen deprivation therapy suppresses the production of testosterone, the male hormone said to fuel growth of prostate cancer. The therapy improves survival when given with radiation for later stages of disease, and is considered the standard of care for men who have metastatic prostate cancer. Effectiveness of primary androgen deprivation therapy (PADT) has not been established.

"This study is the most comprehensive study on the effectiveness of PADT for men who forgo radiation and surgery for their localized prostate cancer, and it tells us there is no strong reason to use it in most patients," says the study's lead investigator, Arnold Potosky, PhD, a professor of oncology and director of health services research at Georgetown Lombardi. "We found only a small survival benefit for primary androgen deprivation therapy compared to no therapy in men diagnosed with higher-risk localized prostate cancer."

Use of primary androgen deprivation therapy for early stage prosta
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Contact: Karen Teber
km463@georgetown.edu
Georgetown University Medical Center
Source:Eurekalert

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