Comparison of Intermittent Androgen Deprivation Therapy With or Without Irradiation Recovery in Prostate Cancer Patients

Screening procedures will be performed up to three months before starting IADT. After obtaining informed consent, patients will be randomly allocated to one of two groups: Experimental group: IADT + IG-IMRT Control group: IADT In both study arms, the first injection of IADT will be administered in hospital on the day of randomization. The overall duration of IADT will be six months. In the experimental group, patients will receive radiotherapy three months after the first injection of IADT. The overall duration of radiotherapy will be three months. The overall duration of IADT will be six months. It will be administered three months, +/- 15 days prior to the first day of radiotherapy. At the completion of the six-month treatment period, a non-treatment interval will start if : there is no evidence of clinical disease progression and the PSA level is ≤ 4.00 ng/ml If the PSA subsequently rises above 0.20 ng/ml and is confirmed by a second measurement at least three weeks later, PET/CT imaging will be repeated every 6 months until a clinical failure is detected or until the PSA rises above 4.00 ng/ml.