Risk Factors, Prognosis, and Potential Chemoprevention Drugs in Patients With Recurrent Hepatocellular Carcinoma After Curative Surgeries: a Nationwide Retrospective Cohort Study and a Multi-center Prospective Cohort Analysis

Study subject and methods: Nationwide retrospective cohort study 1. Establish prediction models for postoperative recurrent HCC by analyzing surgical HCC patients' clinical information and perioperative laboratory date based on the database of a nationwide retrospective cohort organized by the Ministry of Health and Welfare and Health insurance office 2. Discover chemoprevention agents in association with reduced risk of post-operative recurrent HCC using the aforementioned database Multicenter prospective cohort study: 1. To discover biomarkers in prediction of post-operative recurrent HCC , we will establish a shared platform to prospectively and systemically collect Taiwanese HCC surgical patients' bio-materials and clinical information from China Medical University Hospital, Asian University Hospital, Mackay Hospital, Taichung Veterans General Hospital, E-Da Hospital,…etc. 2. Using the multicenter prospective cohort, we could validate the results from the nationwide retrospective cohort study, and even improve the prediction models by adding biological parameters that are not available in the nationwide retrospective cohort Hospital biobank based retrospective case-control study Investigate clinical and biological parameters in prediction of tumor recurrence in HCC surgical patients by hospital based biobank and relevant clinical information Laboratory in-vivo and in-vitro study Investigate causal relationship between prognosis of HCC and selected biomarkers from above studies as well as four universal tumor theragnostic markers (ADAM9, MTHFD2, RRM2, and SLC2A1) and explore treatment effects of corresponding inhibitors Expected results: For scientists, they may benefit from the shared database of Taiwanese HCC surgical patients for the HCC related researches; for physicians, they could predict risk of post-operative recurrent HCC in Taiwanese HCC patients and use generic drugs as potentially chemopreventive drugs for HCC; for patients, they could benefit from the personalized medical advice to increase the survival; for the authorities, they could design a policy to reduce the risk of post-operative recurrent HCC, and even prolong HCC patients' survival in a cost-effective way by using generic drugs as chemopreventive regimens for HCC.