1. Risk adapted chemotherapy for localised Ewing’s sarcoma of bone: The French EW93 study
- Author
-
Nathalie, Gaspar, Annie, Rey, Perrine Marec, Bérard, Jean, Michon, Jean Claude, Gentet, Marie Dominique, Tabone, Henri, Roché, Anne Sophie, Defachelles, Odile, Lejars, Emmanuel, Plouvier, Claudine, Schmitt, Binh, Bui, Patrick, Boutard, Sophie, Taque, Martine, Munzer, Jean-Pierre, Vannier, Dominique, Plantaz, Natacha, Entz-Werle, Natacha, Enz-Werlé, and Odile, Oberlin
- Subjects
Adult ,Male ,Oncology ,Melphalan ,Cancer Research ,medicine.medical_specialty ,Adolescent ,Cyclophosphamide ,medicine.medical_treatment ,Bone Neoplasms ,Sarcoma, Ewing ,Drug Administration Schedule ,White People ,Young Adult ,Risk Factors ,Internal medicine ,Antineoplastic Combined Chemotherapy Protocols ,medicine ,Humans ,Child ,Etoposide ,Chemotherapy ,Ifosfamide ,business.industry ,Infant ,Ewing's sarcoma ,Induction chemotherapy ,Prognosis ,medicine.disease ,Surgery ,Treatment Outcome ,Child, Preschool ,Female ,France ,Sarcoma ,business ,Follow-Up Studies ,medicine.drug - Abstract
To determine whether a risk factor adapted chemotherapy would improve the outcome of non-metastatic bone Ewing's sarcoma.Standard risk tumours (SR, good histological response to chemotherapy or small unresected tumours) received the previous EW88 chemotherapy. Ifosfamide/etoposide (IE) were introduced after 3 courses of cyclophosphamide/doxorubicine when tumour regression was50% or during consolidation therapy for the intermediate risk tumours (IR, intermediate histological response 5-30% residual cells or large unresected tumours100ml). High risk tumours (HR, histological poor response30% residual cells or clinical poor response50% for unresectable tumours), received IE prior high dose busulfan/melphalan with stem cell rescue.From 1993 to 1999, 214 patients were enrolled. 5 y-EFS and OS were 60% (95% confidence interval (CI), 53-66) and 69% (95% CI, 63-75), respectively. 116 (54%), 46 (21%), 48 (22%) patients were considered as SR, IR and HR of relapse, respectively. No advantage to IE was observed in the IR group. As compared to previous study, tumour with poor histological response to induction chemotherapy seemed to benefit from the consolidation strategy including busulfan/melphalan: EFS were 45% (95% CI, 30-60) and 20% (95% CI, 7-43) for EW93 and EW88, respectively. Despite a risk-adapted strategy, histological response to chemotherapy remains the main prognostic factor in resected tumours, while initial tumour volume is the main prognostic factor for unresected tumours.These results showing a potential benefit of a consolidation strategy including busulfan/melphalan as compared to conventional chemotherapy needed confirmation by a randomised trial and were one of the bases of the ongoing EuroEwing99.
- Published
- 2012
- Full Text
- View/download PDF