We identified 116 mRCC patients who were administered sunitinib or sorafenib...Patients with low PBRM1 expression had significantly shorter median PFS (9 vs 26 months, P < 0.001) and OS (21 vs 44 months, P < 0.001) than those with high expression. The expression of PBRM1 could be a significant prognostic factor for mRCC patients treated with targeted therapy...