title: Intra-arterial 5-fluorouracil/interferon combination therapy for advanced hepatocellular carcinoma with or without three-dimensional conformal radiotherapy for portal vein tumor thrombosis.
abstract: BACKGROUND
  The aim of this study was to elucidate the efficacy of intra-arterial 5-fluorouracil (5-FU) and interferon (IFN) alpha combined with three-dimensional conformal radiotherapy (3D-CRT) for portal vein tumor thrombosis (PVTT).
  
  
  METHODS
  The study groups were 16 HCC patients with PVTT treated with 5-FU/IFN combined with 3D-CRT (RT group) and 16 matched controls treated with 5-FU/IFN alone (non-RT group). We compared the survival rate, response, time to progression (TTP), portal hypertension-related events (PREs) and safety.
  
  
  RESULTS
  Complete response (CR) of PVTT, partial response (PR), stable disease (SD) and progressive disease (PR) were noted in three (19%), nine (56%), four (25%) and zero patients of the RT group, one (6%), three (19%), seven (44%) and five (31%) patients of the non-RT group, respectively. The objective response rate of PVTT was higher in the RT group (P = 0.012). The rate of PREs (variceal rupture, worsening of esophagogastric varices and emerging of uncontrollable ascites) was lower in the RT group than in the non-RT group (P = 0.0195). The median survival time of the RT group (7.5 months) was not significantly different from that of the non-RT group (7.9 months). RT-induced liver disease was not observed.
  
  
  CONCLUSIONS
  5-FU/IFN combination with 3D-CRT for PVTT improved the response rate of PVTT and reduced the incidence of portal hypertension-related events.
authors.affiliation: Department of Medicine and Molecular Science, Division of Frontier Medical Science, Programs for Biomedical Research, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan.
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Katamura
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Aikata
authors.forename: Shintaro
authors.initials: S
authors.lastname: Takaki
authors.forename: Takahiro
authors.initials: T
authors.lastname: Azakami
authors.forename: Tomokazu
authors.initials: T
authors.lastname: Kawaoka
authors.forename: Koji
authors.initials: K
authors.lastname: Waki
authors.forename: Akira
authors.initials: A
authors.lastname: Hiramatsu
authors.forename: Yoshiiku
authors.initials: Y
authors.lastname: Kawakami
authors.forename: Shoichi
authors.initials: S
authors.lastname: Takahashi
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kenjo
authors.forename: Naoyuki
authors.initials: N
authors.lastname: Toyota
authors.forename: Katsuhide
authors.initials: K
authors.lastname: Ito
authors.forename: Kazuaki
authors.initials: K
authors.lastname: Chayama