Urtasun R, Feldstein M L, Partington J, Tanasichuk H, Miller J D, Russell D B, Agboola O, Mielke B
Br J Cancer. 1982 Jul;46(1):101-8. doi: 10.1038/bjc.1982.171.
As a continuation of a previous controlled trial using "high-dose" metronidazole as a specific sensitizer of hypoxic cells, we used a more efficient nitroimidazole derivative (misonidazole, MISO) in combination with higher doses of radiation in patients with supratentorial high-grade astrocytomas. Sixty-six patients were stratified according to functional level and histological grading, and randomly allocated within 2 weeks of operation of 1 of 3 therapeutic groups: 1, conventional radiation alone; 2, large fractions of radiation with high-dose metronidazole; and 3, radiation as in Group 2 but with equitoxic doses of MISO. We examined survival as the principal end-point of the study. Neither by increasing the dose of radiation over the previous study, nor by using a more efficient sensitizer, were we able to improve survival over the current conventional daily fractionated radiation.
作为之前一项对照试验的延续,该试验使用“高剂量”甲硝唑作为缺氧细胞的特异性增敏剂,我们在幕上高级别星形细胞瘤患者中使用了一种更有效的硝基咪唑衍生物(米索硝唑,MISO),并联合更高剂量的放疗。66例患者根据功能水平和组织学分级进行分层,并在术后2周内随机分配到3个治疗组中的1组:1. 单纯常规放疗;2. 大分割放疗联合高剂量甲硝唑;3. 与第2组放疗相同,但使用等效毒性剂量的米索硝唑。我们将生存期作为研究的主要终点。无论是比之前的研究增加放疗剂量,还是使用更有效的增敏剂,我们都未能在当前的常规每日分次放疗基础上提高生存期。