KLK3 and prostate cancer: This study included 188 patients with high-risk localized (clinical stage T2c or a pretreatment prostate-specific antigen level > 20 ng/mL or a biopsy Gleason score ≥ 8) and/or locally advanced (any PSA, cT3-4 or cN+) prostate cancer who underwent RARP between July 2013 and May 2020.