Multicenter results of stereotactic body radiotherapy (SBRT) for non-resectable primary liver tumors

Rafael A. Ibarra, Daniel Rojas, Laura Snyder, Min Yao, Jeffrey Fabien, Michael Milano, Alan Katz, Karyn Goodman, Kevin Stephans, Galal El-Gazzaz, Federico Aucejo, Charles Miller, John Fung, Simon Lo, Mitchell MacHtay, Juan R. Sanabria

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73 Scopus citations

Abstract

Background. An excess of 100 000 individuals are diagnosed with primary liver tumors every year in USA but less than 20% of those patients are amenable to definitive surgical management due to advanced local disease or comorbidities. Local therapies to arrest tumor growth have limited response and have shown no improvement on patient survival. Stereotactic body radiotherapy (SBRT) has emerged as an alternative local ablative therapy. The purpose of this study was to evaluate the tumor response to SBRT in a combined multicenter database. Study design. Patients with advanced hepatocellular carcinoma (HCC, n = 21) or intrahepatic cholangiocarcinoma (ICC, n = 11) treated with SBRT from four Academic Medical Centers were entered into a common database. Statistical analyses were performed for freedom from local progression (FFLP) and patient survival. Results. The overall FFLP for advanced HCC was 63% at a median follow-up of 12.9 months. Median tumor volume decreased from 334.2 to 135 cm 3 (p < 0.004). The median time to local progression was 6.3 months. The 1- and 2-years overall survival rates were 87% and 55%, respectively. Patients with ICC had an overall FFLP of 55.5% at a median follow-up of 7.8 months. The median time to local progression was 4.2 months and the six-month and one-year overall survival rates were 75% and 45%, respectively. The incidence of grade 12 toxicities, mostly nausea and fatigue, was 39.5%. Grade 3 and 4 toxicities were present in two and one patients, respectively. Conclusion. Higher rates of FFLP were achieved by SBRT in the treatment of primary liver malignancies with low toxicity.

Original languageEnglish (US)
Pages (from-to)575-583
Number of pages9
JournalActa Oncologica
Volume51
Issue number5
DOIs
StatePublished - May 2012

All Science Journal Classification (ASJC) codes

  • Hematology
  • Oncology
  • Radiology Nuclear Medicine and imaging

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