Radiation, Hormone Therapy Extend Survival in Advanced PC, Phase 3 Trial Shows

Radiation, Hormone Therapy Extend Survival in Advanced PC, Phase 3 Trial Shows
A combination of androgen deprivation therapy (ADT) and external beam radiation therapy (EBRT) is better at delaying disease progression and extending survival of patients with locally advanced prostate cancer than ADT alone, a Phase 3 trial shows. The study, "Long‐term androgen deprivation, with or without radiotherapy, in locally‐advanced prostate cancer: updated results from a phase III randomized trial," was published in BJU International. Previous studies have shown that EBRT, the most common type of radiation therapy, together with ADT, a hormone therapy that aims to slow disease progression by reducing levels of male hormones, led to significant improvements in patients' survival compared to EBRT alone. More recently, the Phase 3 clinical trials NCT00002633 and ISRCTN01534787, plus a third trial, have shown that a combination therapy of ADT and EBRT led to better clinical outcomes compared to ADT alone in patients with locally advanced prostate cancer — that which has spread outside the prostate, but not yet to other tissues and organs. In this multi-center, randomized, open-label, Phase 3 clinical trial (NCT01122121), researchers aimed to confirm these findings and report the long-term effects of the combination therapy of ADT and EBRT compared to ADT alone. The study, called TAP 32, enrolled 263 patients with locally advanced prostate cancer who were randomly assigned to receive either ADT alone or a combination of ADT and EBRT. ADT was similar in both groups, with patients receiving 11.25 mg of leuprorelin for three years. Patients placed in the combination therapy group also received radiation therapy in the whole pelvis at a dose of 46 Gy (a measure of radiation) and 20-28 Gy specifically in the prostate. The trial's primary endpo
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