FADD and neoplasm: These results showed that the VNP-FADD+ADT-OH group exhibited the longest tumour growth delay: the tumour doubling time was 13.65 d (confidence interval (CI): 12.91–14.48 d) in the PBS group, 16.12 d (CI: 15.56–16.72 d) in the ADT-OH group, 20.86 d (CI: 19.85–21.99 d) in the VNP group, 24.32 d (CI: 23.72–24.96 d) in the VNP + ADT-OH group, 24.06 d (CI: 22.87–25.38 d) in the VNP-FADD group and 29.63 d (CI: 27.38–32.28 d) in the VNP-FADD + ADT-OH group.