@article{oai:repo.qst.go.jp:00045249,
 author = {Mizoe, Junetsu and Tsujii, Hirohiko and Hasegawa, Azusa and Yanagi, Takeshi and Takagi, Ryo and Kamada, Tadashi and Tsuji, Hiroshi and Takakura, Kintomo and et.al and 溝江 純悦 and 辻井 博彦 and 長谷川 安都佐 and 柳 剛 and 高木 亮 and 鎌田 正 and 辻 比呂志 and 高倉 公朋},
 issue = {2},
 journal = {International Journal of Radiation Oncology Biology Physics},
 month = {Oct},
 note = {Purpose: To report the results of a Phase I/II clinical trial for patients with malignant gliomas, treated with combined X-ray radiotherapy (XRT), chemotherapy, and carbon ion radiotherapy (CRT).
\nMethods and Materials: Between October 1994 and February 2002, 48 patients with histologically confirmed malignant gliomas (16 anaplastic astrocytoma (AA) and 32 glioblastoma multiforme (GBM) were enrolled in a Phase I/II clinical study. The treatment involved the application of 50 Gy/25 fractions/5 weeks of XRT, followed by CRT at 8 fractions/2 weeks. Nimustine hydrochloride (ACNU) were administered at a dose of 100 mg/m2 concurrently in weeks 1, 4, or 5 of XRT. The carbon ion dose was increased from 16.8 to 24.8 Gray equivalent (GyE) in 10% incremental steps (16.8, 18.4, 20.0, 22.4, and 24.8 GyE, respectively).
\nResults: There was no Grade 3 or higher acute reaction in the brain. The late reactions included four cases of Grade 2 brain morbidity and four cases of Grade 2 brain reaction among 48 cases. The median survival time (MST) of AA patients was 35 months and that of GBM patients 17 months (p = 0.0035). The median progression-free survival and MST of GBM showed 4 and 7 months for the low-dose group, 7 and 19 months for the middle-dose group, and 14 and 26 months for the high-dose group.
\nConclusion: The results of combined therapy using XRT, ACNU chemotherapy, and CRT showed the potential efficacy of CRT for malignant gliomas in terms of the improved survival rate in those patients who received higher carbon doses.},
 pages = {390--396},
 title = {Phase I/II clinical trial of carbon ion radiotherapy for malignant gliomas: combined X-ray radiotherapy, chemotherapy, and carbon ion radiotherapy.},
 volume = {69},
 year = {2007}
}