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Italian Cooperative Study for the treatment of children and young adults with localized Ewing sarcoma of bone: a preliminary report of 6 years of experience.

Abstract：

BACKGROUND:In 1991, the Italian Association for Pediatric Hematology-Oncology and the National Council of Research (CNR) initiated an Italian Cooperative Study (SE 91-CNR Protocol) with the main objective of improving the overall survival (SUR) and the event free survival (EFS) of children and young adults with localized Ewing sarcoma and primitive neuroectodermal tumors of bone compared with a previous study (IOR/Ew2 Protocol). METHODS:Between November 1991 and November 1997, 165 patients were enrolled in this study, 160 of whom were evaluable. The patients were treated with a multimodal approach characterized by intensified chemotherapy, hyperfractionated and accelerated radiation therapy, and the addition of ifosfamide and etoposide to standard chemotherapy with vincristine, actinomycin-D, doxorubicin, and cyclophosphamide. RESULTS:After a median follow-up of 37 months, 126 of the 160 evaluable patients remained free of disease recurrence. Thirty-one patients developed a disease recurrence (20 with disseminated disease). CONCLUSIONS:The 3-year SUR and EFS rates found in the current study (83.6% and 77.8%, respectively) may be considered satisfactory. Only age at diagnosis < or =14 years and a good histologic response appeared to affect the outcome of patients with localized Ewing sarcoma positively. These results appear to demonstrate the efficacy of the addition of ifosfamide in induction chemotherapy to four-drug standard combination chemotherapy, as confirmed by the improved outcome in terms of 3-year EFS reported in the SE 91-CNR Protocol compared with the IOR/Ew2 Protocol (77.8% vs. 60.7%). In addition, the better outcome also could be explained by the change in treatment strategy with a trend toward the use of more surgery than radiation therapy compared with the authors' previous protocol.

journal_name

Cancer

journal_title

Cancer

authors

Rosito P,Mancini AF,Rondelli R,Abate ME,Pession A,Bedei L,Bacci G,Picci P,Mercuri M,Ruggieri P,Frezza G,Campanacci M,Paolucci G

doi

10.1002/(sici)1097-0142(19990801)86:3<421::aid-cnc

subject

Has Abstract

pub_date

1999-08-01 00:00:00

pages

421-8

issue

eissn

0008-543X

issn

1097-0142

pii

10.1002/(SICI)1097-0142(19990801)86:3<421::AID-CNC

journal_volume

pub_type

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Italian Cooperative Study for the treatment of children and young adults with localized Ewing sarcoma of bone: a preliminary report of 6 years of experience.