300 / 1708
0%
20%
40%
60%
80%
100%
0
2
4
6
8
10
12
Survival
POG-8631/CCG-923 (
Reduced
Dose
XRT
Alone
, N=46)
CCG-9892
(Reduced Dose
XRT+ Chemo
, N=65)
POG-8631/CCG-923 (
Standard
Dose XRT
Alone
, N=42)
Packer et al. JCO 17: 2127, 1999; Thomas et al. JCO 18: 3004, 2000
Years Post Onstudy
Reduced Dose Radiotherapy Is Feasible in Standard-Risk
Medulloblastomas If Combined with Adjuvant Chemotherapy