Inclusion Criteria:  Unmeasurable PSA after RP pT2-pT3a after RP ISUP 1-3 regardless of surgical margins ISUP 4-5 with negative surgical margins At least one-sided nerve-sparing procedure Baseline score sexual functioning domain of ≥ 40 points (EPIC-26)  Exclusion Criteria:  Metastatic disease (cN1/M1) pT3b or pT4 after RP Prior treatment for PCa Prior TRT Medical history of male breast- or liver carcinoma Uncontrolled hypertension General contra-indication for TRT Allergy for components in TRT Use of vitamin K-antagonists BMI > 30