Molecular signatures of intrahepatic cholangiocarcinoma: role in targeted therapy selection.

Cholangiocarcinoma is a highly lethal disease with a 5-year overall survival rate of 7-20%. A minority of patients present with resectable disease, and relapse rates remain high. Emerging data from next generation sequencing analysis have identified various actionable mutations which drive the different disease courses opening door to precision medicine and targeted therapies. This review focuses on the clinical significance of genetic alterations as well as the role of systemic therapies, immunotherapy and targeted therapies for intrahepatic cholangiocarcinoma.