About this trial
Stereotactic Ablative Radiation (SABR/SBRT) will be prescribed to a dose of 35 Gy in 5 fractions, once weekly to prostate with a simultaneous intra-prostatic boost to the MR detected nodule up to 50Gy. The pelvic lymph nodes and seminal vesicles will also receive 25 Gy in 5 weekly fractions.
Eligibility criteria
Qualifiers
Histologically confirmed prostate adenocarcinoma
High-risk prostate cancer, defined as at least one of: T3, Gleason 8-10, OR PSA > 20 ng/mL
Willing to give informed consent to participate in this clinical trial
Disqualifiers
Prior pelvic radiotherapy
Contraindication to radical prostate radiotherapy e.g. connective tissue disease or inflammatory bowel disease
Contraindication to prostate MRI
No evidence of castrate resistance (defined as PSA < 3 ng/ml while testosterone is < 0.7nmol/l. Patients could have been on combined androgen blockade but are excluded if this was started due to PSA progression.
Trial design
Treatments tested in this trial
- Pelvic SABR with intra-prostatic SABR