Overview Timing of Surgery in Nonmetastatic Osteosarcoma of the Pelvis and Sacrum Status: Recruiting Trial end date: 2025-02-01 Target enrollment: Participant gender: Summary To study the effect of the timing of surgery on outcome of patients with nonmetastatic osteosarcoma of pelvis and sacrum. Phase: N/A Details Lead Sponsor: Peking University People's HospitalTreatments: CisplatinDoxorubicinIfosfamideIsophosphamide mustardLiposomal doxorubicinMethotrexate