In the full series, negative IHC expression for BAP1 and PBRM1 was associated with better mTOR inhibitor response (OR = 4.0, 95%CI = 1.4-11.9, P = 0.011 and OR = 3.9, 95%CI = 1.2-12.8, P = 0.025, respectively, multivariable analysis)….Lack of BAP1 and PBRM1 expression was associated with improved response to mTOR inhibitors.