Journal
LIVER INTERNATIONAL
Volume 36, Issue 8, Pages 1206-1212Publisher
WILEY
DOI: 10.1111/liv.13098
Keywords
hepatocellular carcinoma; portal vein invasion; radioembolization; selective internal radiation therapy; sorafenib
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Background & AimsSorafenib (SOR) is the standard of care for patients with hepatocellular carcinoma (HCC) and portal vein invasion (PVI), based on the results of phase 3 trials. However, radioembolization (RE) using yttrium-90 microspheres has been shown to achieve higher response rates and better survival in large cohorts and phase 2 trials. This study aimed to compare survival of HCC patients with PVI treated by RE or SOR. MethodsSurvival among patients with HCC and PVI treated with RE or SOR in four Spanish hospitals between 2005 and 2013 was analysed retrospectively. Kaplan-Meier survival curves were plotted and baseline variables tested for prognostic value using the log-rank test. A multivariate prognostic model including variables identified in the univariate analysis and adjusted by a propensity score based on factors that may determine the probability of exposure to RE was generated using Cox regression analyses. ResultsAfter a median follow-up of 6 months, 60 deaths had occurred: 38 and 22 in SOR and RE groups respectively. Median survival was 6.7 months (95%CI 5.2-8.1 months) for the entire cohort, and 8.8 months (95%CI 1.8-15.8) in the RE group and 5.4 months (95%CI 2.7-8.1) in the SOR group (P = 0.047). The difference in survival was still statistically significant when 13 patients in the RE group who started SOR after a median time of 8 months were censored from the analysis. ConclusionsIn a cohort of patients with HCC and PVI treatment with RE was associated with a more prolonged survival compared with SOR.
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