期刊
CANCER
卷 119, 期 1, 页码 45-51出版社
WILEY-BLACKWELL
DOI: 10.1002/cncr.27723
关键词
preoperative; short course; carbon-ion radiotherapy; pancreatic cancer; phase 1
类别
资金
- National Institute of Radiological Sciences-Heavy Ion Medical Accelerator in Chiba (NIRS-HIMC)
BACKGROUND: The authors evaluated the tolerance and efficacy of carbon-ion radiotherapy (CIRT) as a short-course, preoperative treatment and determined the recommended dose needed to reduce the risk of postoperative local recurrence without excess injury to normal tissue. METHODS: Patients radiographically defined with potentially resectable pancreatic cancer were eligible. A preoperative, short-course, dose-escalation study was performed with fixed 8 fractions in 2 weeks. The dose of irradiation was increased by 5% increments from 30 grays equivalents (GyE) to 36.8 GyE. Surgery was to be performed 2 to 4 weeks after the completion of CIRT. RESULTS: The study enrolled 26 patients. At the time of restaging after CIRT, disease progression with distant metastasis or refusal ruled out 5 patients from surgery. Twenty-one of 26 patients (81%) patients underwent surgery. The pattern of initial disease progression was distant metastasis in 17 patients (65%) and regional recurrence in 2 patients (8%). No patients experienced local recurrence. The 5-year survival rates for all 26 patients and for those who underwent surgery were 42% and 52%, respectively. CONCLUSIONS: Preoperative, short-course CIRT followed by surgery is feasible and tolerable without unacceptable morbidity. Cancer 2013. (c) 2012 American Cancer Society.
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