PURPOSE: The aim of this study was to evaluate the efficacy and safety of carbon-ion radiotherapy (C-ion RT) for unresectable locally advanced pancreatic cancer (LAPC). METHODS AND MATERIALS: Patients with LAPC treated with definitive C-ion RT between April 2014 and July 2017 were analyzed retrospectively. The prescribed dose was 55.2 Gy (relative biological effectiveness [RBE] weighted absorbed dose) in 12 fractions. Overall survival (OS), local control (LC), progression free survival (PFS), and toxicity were evaluated. RESULTS: Sixty-four patients were enrolled. All patients completed planned course of C-ion RT. The median follow-up time for survivors from the initiation of C-ion RT was 24.4 months (range, 5.1-46.1 months). Median survival time was 25.1 months. Two-year OS, LC, and PFS were 53% (95% confidence interval [CI], 39%-66%), 82% (95% CI, 66%-91%), and 23% (95% CI, 14%-36%), respectively. Four patients experienced acute grade 3 toxicities including 3 gastrointestinal (GI) toxicities. There was no grade 3 or more late toxicity. CONCLUSIONS: The clinical results of C-ion RT for LAPC at our institution were comparable to those of a recent multi-institutional analysis.
PURPOSE: The aim of this study was to evaluate the efficacy and safety of carbon-ion radiotherapy (C-ion RT) for unresectable locally advanced pancreatic cancer (LAPC). METHODS AND MATERIALS: Patients with LAPC treated with definitive C-ion RT between April 2014 and July 2017 were analyzed retrospectively. The prescribed dose was 55.2 Gy (relative biological effectiveness [RBE] weighted absorbed dose) in 12 fractions. Overall survival (OS), local control (LC), progression free survival (PFS), and toxicity were evaluated. RESULTS: Sixty-four patients were enrolled. All patients completed planned course of C-ion RT. The median follow-up time for survivors from the initiation of C-ion RT was 24.4 months (range, 5.1-46.1 months). Median survival time was 25.1 months. Two-year OS, LC, and PFS were 53% (95% confidence interval [CI], 39%-66%), 82% (95% CI, 66%-91%), and 23% (95% CI, 14%-36%), respectively. Four patients experienced acute grade 3 toxicities including 3 gastrointestinal (GI) toxicities. There was no grade 3 or more late toxicity. CONCLUSIONS: The clinical results of C-ion RT for LAPC at our institution were comparable to those of a recent multi-institutional analysis.
Authors: Timothy D Malouff; Anita Mahajan; Sunil Krishnan; Chris Beltran; Danushka S Seneviratne; Daniel Michael Trifiletti Journal: Front Oncol Date: 2020-02-04 Impact factor: 5.738
Authors: Jakob Liermann; Patrick Naumann; Fabian Weykamp; Philipp Hoegen; Juergen Debus; Klaus Herfarth Journal: Front Oncol Date: 2021-07-14 Impact factor: 6.244