Provided is a method for predicting the therapeutic effect of a chemotherapy on a hepatocellular carcinoma patient who underwent hepatic artery embolization, and an antitumor agent for treating a carcinoma patient on whom said chemotherapy is predicted to highly likely exert sufficient therapeutic effect.In the method for predicting the therapeutic effect of a chemotherapy on a hepatocellular carcinoma patient who underwent hepatic artery embolization, the expression amount of PDGF-BB or IL-8 is used as an indicator. The antitumor agent for treating a carcinoma patient is predicted, by the aforesaid prediction method, to highly likely exert sufficient therapeutic effect.
