Regorafenib combined with transarterial chemoembolization for unresectable hepatocellular carcinoma: a real world study

Background The benefits and tolerability of transarterial chemoembolization (TACE) combined with regorafenib as a second-line therapy has not been reported for unresectable hepatocellular carcinoma (HCC). This study aimed to explore the benefits and tolerability of TACE combined with second-line regorafenib in patients with unresectable advanced HCC and failure to first-line treatment. Methods This was a multicenter retrospective study of patients with progression after first-line sorafenib and/or lenvatinib between 01/2019 and 04/2020 at four tertiary hospitals in China. The patients were treated with TACE. Then, 5-7 days after the first TACE, the patients started taking regorafenib for 3 weeks every 4-week cycle. The overall survival (OS), time to progression (TTP), progression-free survival (PFS), and adverse events (AEs) were observed. Results The median follow-up was 5.6 (range 0.7, 17.0) months. The median age was 60 (range 35, 79) years. There were 32 (84.2%) males. The patients underwent a median of three TACE sessions (range 1-13). The initial doses of regorafenib were 20 mg/d (n = 1, 2.6%), 80 mg/d (n = 10, 26.3%), 120 mg/d (n = 15, 39.5%), and 160 mg/d (n = 11, 28.9%). The incidence of grade 3/4 AEs was 15.8%. Two patients stopped regorafenib due to AEs. The median OS was 14.3 months. The median PFS and TTP were 9.1 (95% CI 4.0, 14.2) and 9.1 (95% CI 5.5, 12.8) months, respectively. Conclusions The present study provides real-world evidence indicating that regorafenib combined with TACE was beneficial and tolerable in patients with unresectable HCC. Additional prospective large-scale studies are required for confirmation.