Methods of treating cancer using N-(4-(4-((2-(4-chlorophenyl)-5,5-dimethyl-1-cyclohex-1-en-1-yl)methyl)pip- erazin-1-yl)benzoyl)-4-(((1R)-3-(morpholin-4-yl)-1-((phenylsulfanyl)methyl- )propyl)amino)-3-((trifluoromethyl)sulfonyl)benzenesulfonamide are disclosed.