additionally , response following ifosfamide treatment is being evaluated for previously untreated children with osteosarcoma and rhabdomyosarcoma after 6 weeks of treatment , and for previously untreated patients with ewing 's sarcoma after 9 weeks of treatment with ifosfamide/vp-16 ( etoposide ) given in combination .
C0029463
osteosarcoma
C0553580
ewing 's sarcoma