After standard multimodal therapy, the prognosis of relapsed and metastatic Ewing Sarcoma is dismal and unchanged over the last decades. The anti-tumor activity of VIT was demonstrated by several studies in the past. However, the detailed schedule of VIT was not decided. Thus, the investigators explored the activity of 5-d shorter schedule of VIT and 5-d x2w longer schedule of VIT in patients with relapsed and metastatic Ewing Sarcoma after the failure of first-line chemotherapy with doxorubicin, vincristine, cyclophosphamide, ifosphamide and etoposide.
The investigators explored the activity of vincristine and irinotecan combined with temozolomide (VIT) in patients with relapsed and metastatic Ewing Sarcoma.