Early Investigation of High Precision Radiotherapy Prior to Commencing Standard Radiotherapy for Prostate Cancer

Current standard treatment for prostate cancer involves giving patients approximately 40 doses of radiotherapy, one dose per day over an 8 week period. The purpose of this study is to assess the effects of giving two separate high doses of a special type of precision radiotherapy to the prostate and then 5 weeks (instead of 8 weeks) of standard radiotherapy. Hypothesis: It is safe to give patients an extra two doses of high-precision radiotherapy prior to commencing a shorter period of standard radiotherapy for prostate cancer.