RT Journal Article SR Electronic T1 Carbon-ion Radiotherapy for Prostate Cancer: Analysis of Morbidities and Change in Health-related Quality of Life JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 5559 OP 5566 VO 35 IS 10 A1 ISHIKAWA, HITOSHI A1 KATOH, HIROYUKI A1 KAMINUMA, TAKUYA A1 KAWAMURA, HIDEMASA A1 ITO, KAZUTO A1 MATSUI, HIROSHI A1 HIRATO, JUNKO A1 SHIMIZU, NOBUAKI A1 TAKEZAWA, YUTAKA A1 TSUJI, HIROSHI A1 SUZUKI, KAZUHIRO A1 OHNO, TATSUYA A1 NAKANO, TAKASHI A1 GROUP FOR GENITOURINARY TUMORS AT GUNMA HEAVY ION MEDICAL CENTER YR 2015 UL http://ar.iiarjournals.org/content/35/10/5559.abstract AB Aim: To prospectively evaluate the feasibility of carbon-ion radiotherapy (C-ion RT) for prostate cancer using a new compact-sized accelerator. Patients and Methods: Seventy-six patients underwent C-ion RT at our center using a recommended dose fractionation of 57.6 GyE in 16 fractions established at the National Institute of Radiological Sciences. Health-related Quality of Life (HRQOL) assessment was also performed using the Medical Outcome Study 8-items Short Form Health Survey (SF-8) questionnaire. Results: The median follow-up time was 51 months (range=8-58 months). Grade 2 gastrointestinal and genitourinary complications developed in 1 (1.3%) and 5 (6.6%) patients, respectively. Recurrences occurred in 4 patients, and the 4-year biochemical relapse-free rate was 94.6%. The HRQOL scores after C-ion RT were objectively well-maintained. Conclusion: Irrespective of the small number of patients of the study, C-ion RT for prostate cancer using the first commercial-based accelerator reproduced the toxicity outcomes at the NIRS.