Abstract: The present invention provides a marker which can be used as an indicator for efficacy prediction of an mTOR related anticancer agent or prognostic prediction, and a novel anticancer agent. The present invention provides a method for efficacy evaluation of a cancer drug, and, specifically, a prediction method for the efficacy of an mTOR-related cancer drug by detecting NRF2 abnormality. In addition, the present invention provides a prognostic prediction method for cancer, and, specifically, a prediction method for the prognosis of cancer by detecting NRF2 abnormality. Furthermore, the present invention provides a novel anticancer agent that targets NRF2.

Abstract: The present invention provides a therapeutic agent for bile duct cancer comprising 5-((2-(4-(1-(2-hydroxyethyl)piperidin-4-yl)benzamide)pyridin-4-yl)oxy)-6-(2-methoxyethoxy)-N-methyl-1H-indole-1-carboxamide or a pharmacologically acceptable salt thereof.

Abstract: The present invention provides a therapeutic agent for bile duct cancer comprising 5-((2-(4-(1-(2-hydroxyethyl)piperidin-4-yl)benzamide)pyridin-4-yl)oxy)-6-(2-methoxyethoxy)-N-methyl-1H-indole-1-carboxamide or a pharmacologically acceptable salt thereof.

Abstract: To identify mutations that can serve as indicators for predicting the effectiveness of drug treatments in cancers such as gastric cancer; to provide a means for detecting said mutations; and to provide a means for identifying, based on said mutations, patients with cancer or subjects with a risk of cancer, in whom drugs targeting genes having said mutations or proteins encoded by said genes show a therapeutic effect. A method for detecting a gene fusion serving as a responsible mutation (driver mutation) for cancer, the method comprising the step of detecting any one of an ATG3-EPHB1 fusion polynucleotide, a TNIK-RNF123 fusion polynucleotide, or an SLC12A2-NRG2 fusion polynucleotide, or a polypeptide encoded thereby, in an isolated sample from a subject.

Abstract: In order to identify genes that can serve as indicators for predicting the effectiveness of drug treatments in cancers and provide novel methods for predicting the effectiveness of treatments with drugs targeting said genes, transcriptome sequencing was performed of biliary tract cancer. As a result, in-frame fusion transcripts between the FGFR2 gene and other gene (BICC1 or AHCYL1 gene) were identified. It was also found that said gene fusions induce activation of FGFR2 protein, thereby causing canceration of cells. Further, it was demonstrated that the FGFR2 protein activation and canceration caused by said gene fusions can be suppressed by using an FGFR2 inhibitor, and that treatments with an FGFR2 inhibitor are effective in patients with detection of said gene fusions.

Abstract: In order to identify genes that can serve as indicators for predicting the effectiveness of drug treatments in cancers and provide novel methods for predicting the effectiveness of treatments with drugs targeting said genes, transcriptome sequencing was performed of diffuse-type gastric cancer. As a result, in-frame fusion transcripts between the CEP55 gene and the RET gene were identified. It was also found that said gene fusions induce activation of RET protein, thereby causing canceration of cells. Further, it was demonstrated that the RET protein activation and canceration caused by said gene fusion can be suppressed by using a RET tyrosine kinase inhibitor, and that treatments with a RET tyrosine kinase inhibitor are effective in patients with detection of said gene fusion.

Abstract: The present invention provides a marker which can be used as an indicator for efficacy prediction of an mTOR related anticancer agent or prognostic prediction, and a novel anticancer agent. The present invention provides a method for efficacy evaluation of a cancer drug, and, specifically, a prediction method for the efficacy of an mTOR-related cancer drug by detecting NRF2 abnormality. In addition, the present invention provides a prognostic prediction method for cancer, and, specifically, a prediction method for the prognosis of cancer by detecting NRF2 abnormality. Furthermore, the present invention provides a novel anticancer agent that targets NRF2.