The German centre where the technique was developed now performs the technique on all cases meaning the opportunity to evaluate the technique in the setting of an RCT has been missed. The technique is only performed routinely in one NHS centre, Lister Hospital. The current situation provides a unique opportunity to fully evaluate the benefits of this technique for NHS patients. The proposed study, NeuroSAFE PROOF, is a multicentre RCT designed to compare short term oncological and functional outcomes after robotic radical prostatectomy with nerve sparing performed according to current UK practice (based on a perceived risk of pT3a disease from prostate biopsy, MRI and examination findings) with patients who have undergone the NeuroSAFE procedure. For the feasibility phase 50 patients will be randomised 1:1. A NeuroSAFE training academy will be established.