Efficacy and Safety of Chemoradiation Therapy Using One- Shot Cisplatin via Hepatic Arterial Infusion for Advanced Hepatocellular Carcinoma with Major Macrovascular Invasion: a Single-arm Retrospective Cohort Study
Abstract Background: Patients with hepatocellular carcinoma (HCC) and macrovascular invasion (MVI) who receive systemic chemotherapy have a poor prognosis. This study aimed to determine if one-shot cisplatin (CDDP) chemotherapy via hepatic arterial infusion (HAI) combined with radiation therapy (RT) prior to systemic chemotherapy could improve the outcomes of these patients. Methods: This study consisted of 32 HCC patients with the following eligibility criteria: (i) portal vein invasion 3/4 and/or hepatic vein invasion 2/3; (ii) received one-shot CDDP via HAI; (iii) received RT for MVI, (iv) a Child-Pugh score ≤7; and (v) an Eastern Clinical Oncology Group Performance Status score of 0 or 1. To determine the therapeutic effect, we collect the information of patients’ characteristics and took contrast-enhanced computed tomography at the start of the therapy and every 2 to 4 months after the therapy initiated. We evaluated the overall response of the tumor and tumor thrombosis according to modified Response Evaluation Criteria in Solid Tumors. We assessed the patient’s data statistically by the Mann-Whitney U-test, fisher’s exact test, and evaluated overall survival and progress-free survival by log-ranked test, and analyzed the predictive factors by as appropriate. Results: The overall response rate at the first evaluation performed a median of 1.4 weeks after HAI was 16% of the main intrahepatic tumor and 59% of the MVI. The best responses were the same as those of the first-time responses. The duration of median survival was 8.6 months, and for progression-free survival of the main intrahepatic tumor was 3.2 months. The predictive factor of overall survival was the relative tumor volume in the liver and the first therapeutic response of MVI. There were no severe adverse events or radiation-induced hepatic complications. Conclusions: One-shot CDDP via HAI and RT were well tolerated and showed immediate and favorable control of MVI. Thus, this combination shows potential as a bridging therapy to systemic chemotherapy.