Cholangiocarcinoma (CCK) is a rare tumor (2000 new cases/year in France) with very poor prognosis (overall survival < 3% at 5 years). Less than 20% of patients may benefit from curative surgical resection and most patients have medical treatment by palliative treatment by palliative chemotherapy. It is not standard first-line chemotherapy validated for unresectable CCK, but the best objective response rate (OR) and overall survival (OS) are observed with gemcitabine and platinum associations (OR 24 to 36% and OS between 9.5 to 15.4 months). In case of tumor progression ater this first line therapy, no treatment is currently being validated.