Number: RTOG 0534 Principal Investigator: Michalski, Jeff
Title: A Phase III Trial of Short Term Androgen Deprivation with Pelvic Lymph Node or Prostate Bed Only Radiotherapy (SPPORT) in Prostate Cancer Patients with a Rising PSA After Radical Prostatectomy
Phase: III Disease Site: Prostate
Participating Site(s):
Main Campus
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South County
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St. Peters
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West County
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Contact: 800-600-3606 or

The purpose of this study is to compare the effects, good and/or bad of three standard of care treatment methods on participants and their cancer.

External beam radiation therapy is one of the standard treatments for men with prostate cancer who have a rising PSA after surgery. Different methods of radiation therapy are used, and it is not known which one is best. Most commonly, the area where the prostate was originally located before being removed (the prostate bed) is treated, without treating the lymph nodes in the pelvis. Prostate cancer can spread to the lymph nodes. There is some evidence in men who have not had surgery that radiotherapy to the pelvic lymph nodes may stop the cancer from spreading under some conditions. Since treating the pelvic lymph nodes can result in increased side effects, the benefit of this method of radiation therapy needs to be tested.

Prostate cancer feeds on male hormones, such as testosterone. Drugs that reduce or block testosterone (hormone therapy) can cause some prostate cancer cells to die and others to become sick so that they don’t grow. Some patients treated with a combination of these drugs and radiation have a greater chance of not having the cancer return when compared to men treated with radiation alone. These studies were done in men who did not have surgery. Since hormone therapy can result in increased side effects, the benefit of combining hormone therapy with radiation therapy needs to be tested.
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