Abstract
e15678 Background: Patients with advanced hepatocellular carcinoma (HCC) have a particularly poor prognosis of the median overall survival of less than 12 months. Even though sorafenib has been approved for treating advanced stage HCC, the unsatisfactory objective response rate still remain unresolved. In the current study, we aimed to evaluate the efficacy and safety of localized concurrent chemoradiotherapy (CCRT) followed by sequential sorafenib treatment for advanced hepatocellular carcinoma. Methods: This study is an ongoing, phase II trial. Patients with advanced HCC not amenable for curative treatments were eligible. In the course of radiotherapy for 5 weeks, hepatic arterial infusion of 5-fluorouracil (500mg/day) via implanted port was applied during the first 5 days and the last 5 days of radiotherapy. Four weeks after localized CCRT, sorafenib (400mg bid) was maintained. The primary endpoint was overall survival. Results: A total of 47 patients were enrolled. After the completion of localized CCRT, the objective response rate was 31.9%. During the overall treatment course, the objective response rate was 46.8% respectively. Overall, 7 patients (14.9%) underwent curative resection or transplantation after down-staging. The median overall survival was 18.4 months and the progression-free survival was 6.8 months. Adverse events were predictable and manageable with conservative care. Conclusions: Localized CCRT followed by sequential sorafenib treatment in patients with advanced HCC showed significant activity and good tolerability. Furthermore, such a treatment modality, when compared to the use of sorafenib alone, might provide the additional therapeutic benefit through initial tumor reduction, allowing curative treatment after down-staging in 14.9% of patients, Further randomized trial should be required to make the more robust evidence. Clinical trial information: NCT02425605.
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