The addition of ifosfamide and etoposide (IE) to
vincristine, doxorubicin and cyclophosphamide (VDC) improved
both local control and overall survival while interval
compression of VDC alternating with IE chemotherapy improved
survival.
In AEWS1031, a provision for response-adapted
post-operative RT as a method to reduce RT volumes for
favorable responders was included to reduce risk of
musculoskeletal complications after treatment.
Identification of older age (>18 years) and
pelvic primary site as predictors of inferior local control
for patients treated primarily with radiotherapy.
The current metastatic COG Ewing trial, AEWS1221,
allows SBRT to metastatic lesions given in 5 fractions, as
opposed to the current standard of 31 fractions.
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