Next, the result of the modified Glasgow Prognostic Score (mGPS), neutrophil-to-lymphocyte ratio (NLR) (cut-off ≥3), the presence of high-volume bone metastases (as defined by CHAARTED criteria), hemoglobin (Hb) (cut off < 13.2 g/dl), Gleason score ≥8, and presence of visceral metastases were combined into the Metastasized Prostate Cancer Survival Score (MeProCSS). This evidence concerns the gene GSTM1 and prostate cancer.