Daily Adaptive RadioTherapy in Postoperative HypofrActionated Salvage radiothERapy for Prostate Cancer Patients

This study is testing whether daily adaptive radiation therapy — where the radiation plan is adjusted each day based on how the prostate area looks — can improve outcomes for men who need radiation after prostate cancer surgery when their PSA has risen or remained detectable. **You may be eligible if...** - You are 80 years old or younger - You have had your prostate surgically removed (radical prostatectomy) for prostate cancer - Your cancer was stage pT2–3 and did not spread to the lymph nodes - You need salvage radiation because your PSA has risen or did not fall low enough after surgery - You have no evidence of cancer spread (confirmed by a PSMA PET-CT scan) - You have not had any prior radiation to the pelvic area **You may NOT be eligible if...** - You are under 18 years old - You received adjuvant radiotherapy right after surgery - You have previously had radiation in the same area Talk to your doctor to see if this trial is right for you.