The percentage of adolescents and young adults with sarcoma enrolled in multicenter clinical trials is reportedly much lower than that of younger children. We intended to determine if this remained true despite the availability of a study open to patients up to the age of 40 years Review of interim recruitment and randomization rates in a large randomized multinational trial for resectable osteosarcoma, EURAMOS-1, jointly performed by COG, COSS, EOI, and SSG, within ECT-EUROCORES. Randomization scheduled after preoperative chemotherapy and definitive surgery of the primary tumour.Aim
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