10. EORTC22845 Trial
EORTC22845 III期临床随机研究
目的:评价LGG术后患者早期放疗与延迟治疗的长期疗效
van den Bent M J, Afra D, de Witte O, et al. Long-term efficacy of early versus delayed radiotherapy for low- grade astrocytoma and oligodendroglioma in adults: the EORTC 22845 randomised trial [J]. Lancet, 2005,366(9490):985- 990.
11. van den Bent M J, Afra D, de Witte O, et al. Long-term efficacy of early versus delayed radiotherapy for low- grade astrocytoma and oligodendroglioma in adults: the EORTC 22845 randomised trial [J]. Lancet, 2005,366(9490):985- 990.方案设计
12. 研究结果(1)中位生存期
早期放疗组:7.4年
延迟治疗组:7.2年
van den Bent M J, Afra D, de Witte O, et al. Long-term efficacy of early versus delayed radiotherapy for low- grade astrocytoma and oligodendroglioma in adults: the EORTC 22845 randomised trial [J]. Lancet, 2005,366(9490):985- 990.
13. 研究结果(2)中位无进展生存期
早期放疗组:5.3年
延迟治疗组:3.5年
van den Bent M J, Afra D, de Witte O, et al. Long-term efficacy of early versus delayed radiotherapy for low- grade astrocytoma and oligodendroglioma in adults: the EORTC 22845 randomised trial [J]. Lancet, 2005,366(9490):985- 990.
14. 结 论
尽管早期放疗与延迟治疗OS无差别,但可延长PFS
对年老、局部神经功能缺陷、高颅内压或认知力下降的患者,应早期放疗
对于年轻(<45岁)、临床仅表现为癫痫、预后良好的患者,可采用“wait and see”策略
van den Bent M J, Afra D, de Witte O, et al. Long-term efficacy of early versus delayed radiotherapy for low- grade astrocytoma and oligodendroglioma in adults: the EORTC 22845 randomised trial [J]. Lancet, 2005,366(9490):985- 990.
15. 术后放疗剂量的问题
EORTC 22844 Trial
NCCTG/RTOG/ECOG Study
16. 术后放疗剂量的问题
EORTC 22844 Trial
NCCTG/RTOG/ECOG Study
17. 研究方法及目的Ⅲ期前瞻性临床随机研究
共379例LGG术后患者
分低剂量组(45Gy/25次)和高剂量组(59.4Gy/33次)
研究低级别胶质瘤术后放疗的剂量-效应关系
Karim A B, Maat B, Hatlevoll R, et al. A randomized trial on dose - response in radiation therapy of low-grade cerebral glioma: European Organization for Re-search and Treatment of Cancer (EORTC) Study 22844.[J]. Int J Radiat Oncol Biol Phys, 1996, 36:549- 556.
18. 研究结果(1):生存情况中位随访期74个月
5年总生存率:
低剂量组:58%
高剂量组:59%
5年无进展生存率:
低剂量组:47%
高剂量组:50%
Karim A B, Maat B, Hatlevoll R, et al. A randomized trial on dose - response in radiation therapy of low-grade cerebral glioma: European Organization for Re-search and Treatment of Cancer (EORTC) Study 22844.[J]. Int J Radiat Oncol Biol Phys, 1996, 36:549- 556.
19. 研究结果(2):毒性反应急性反应轻微,两组间未见统计学差异
未见明确的放射性脑坏死
晚期毒性及生活质量两组间未见差异
Karim A B, Maat B, Hatlevoll R, et al. A randomized trial on dose - response in radiation therapy of low-grade cerebral glioma: European Organization for Re-search and Treatment of Cancer (EORTC) Study 22844.[J]. Int J Radiat Oncol Biol Phys, 1996, 36:549- 556.
20. 术后放疗剂量的问题
EORTC 22844 Trial
NCCTG/RTOG/ECOG Study
21. 术后放疗剂量的问题
EORTC 22844 Trial
NCCTG/RTOG/ECOG Study
22. 研究方法及目的203例LGG术后患者
分低剂量组(50.4Gy/28次)和高剂量组(64.8Gy/36次)
对比两组间的生存及毒性
Shaw E, Arusell R, Scheithauer B, et al. Prospective randomized trial of low- versus high- dose radiation ther-apy in adults with supratentorial low- grade glioma: ini-tial report of a North Central Cancer Treatment Group/Radiation Therapy Oncology Group/Eastern Cooperative Oncology Group study [J]. J Clin Oncol, 2002, 20:2267- 2276.
23. 研究结果(1):生存期及TTP5年生存率:
Low-dose RT组:72%
High-dose RT组:65%
Shaw E, Arusell R, Scheithauer B, et al. Prospective randomized trial of low- versus high- dose radiation ther-apy in adults with supratentorial low- grade glioma: ini-tial report of a North Central Cancer Treatment Group/Radiation Therapy Oncology Group/Eastern Cooperative Oncology Group study [J]. J Clin Oncol, 2002, 20:2267- 2276.中位肿瘤进展时间(TTP):
Low-dose RT组 vs High-dose RT组
无显著差异(p=0.65)
24. 研究结果(2):毒性反应严重CNS放射毒性发生率:
Low-dose RT组 6% vs High-dose RT组 10%
Shaw E, Arusell R, Scheithauer B, et al. Prospective randomized trial of low- versus high- dose radiation ther-apy in adults with supratentorial low- grade glioma: ini-tial report of a North Central Cancer Treatment Group/Radiation Therapy Oncology Group/Eastern Cooperative Oncology Group study [J]. J Clin Oncol, 2002, 20:2267- 2276.
39. PET与MRI融合图像各体积示例图 图1-1 11C-MET-PET和MRI融合图像上各体积及距离示例图Vol-MRI(T2/Gd)
Vol-MET∪Vol-MRIVol-METVol-MET∩Vol-MRIVol-MRI minus Vol-MET∩Vol-MRIVol-MET minus Vol-MET∩Vol-MRIM DMaximal distance between PET and MRIMRI强化区或异常高信号区体积11C-MET-PET异常高代谢区体积 PET与MRI并集的体积 PET与MRI交集的体积MRI在PET外的体积PET在MRI外的体积两者边界的最大距离