Intra-arterial 5-fluorouracil/interferon combination therapy for advanced hepatocellular carcinoma with or without three-dimensional conformal radiotherapy for portal vein tumor thrombosis.
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.
Katamura
Yoshio
Y
Department of Medicine and Molecular Science, Division of Frontier Medical Science, Programs for Biomedical Research, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan.
Aikata
Hiroshi
H
Takaki
Shintaro
S
Azakami
Takahiro
T
Kawaoka
Tomokazu
T
Waki
Koji
K
Hiramatsu
Akira
A
Kawakami
Yoshiiku
Y
Takahashi
Shoichi
S
Kenjo
Masahiro
M
Toyota
Naoyuki
N
Ito
Katsuhide
K
Chayama
Kazuaki
K