In multivariable Cox regression analysis, LNM size (HR 1.01 per mm, CI 1.00–1.02) and count (HR 1.03 per LNM, CI 1.01–1.05), PSA at RP (HR 1.00, CI 1.00–1.01), and local advanced disease (HR for pT3: 1.51, CI 1.19–1.92) were significant predictors of longer BCRFS (p < 0.05). Here, KLK3 is linked to glycogen storage disease VI.