SBRT Boost for Unfavorable Prostate Cancer'

This study is testing whether adding a focused radiation treatment called stereotactic body radiation therapy (SBRT) as a targeted boost to the prostate — on top of standard radiation — can improve outcomes for men with higher-risk prostate cancer while limiting side effects. **You may be eligible if...** - You have been diagnosed with prostate cancer classified as intermediate or high risk (based on PSA level, Gleason score, and tumor stage) - You are scheduled to receive radiation therapy for your prostate cancer - You are in generally good health and your urinary function is adequate before treatment - You are at least 18 years old **You may NOT be eligible if...** - You have had prior radiation to the pelvis - You have had previous prostate surgery - You have serious urinary problems that would be worsened by radiation - You have cancer that has spread beyond the prostate to lymph nodes or distant organs - You are unable to lie still for the radiation treatment sessions Talk to your doctor to see if this trial is right for you.