An intergroup phase III randomized study of doxorubicin and dacarbazine with or without ifosfamide and mesna in advanced soft tissue and bone sarcomas.

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Abstract
PURPOSE AND METHODSDoxorubicin alone or with dacarbazine (DTIC; AD) is considered the best available therapy for metastatic adult sarcomas. Ifosfamide is active in sarcomas that have failed to respond to a doxorubicin-based regimen. This study was designed to determine if ifosfamide added to doxorubicin and DTIC (ADI) significantly effects toxicity, response rate, and survival. Patients with measurable metastatic or unresectable sarcoma were randomized to receive AD or ADI. Patients with chondrosarcomas, fibrosarcomas, and other sarcomas of bone were eligible, although those with osteosarcoma, rhabdomyosarcoma, Ewing's sarcoma, Kaposi's sarcoma, and mesothelioma were excluded, as were patients with prior chemotherapy for sarcoma or prior doxorubicin.RESULTSBetween 1987 and 1989, 340 eligible patients were randomized. Significantly more myelosuppression, a higher response rate (17% v 32%; P < .002) and longer time to progression (4 v 6 months; P < .02) were observed for patients who received ifosfamide. An...

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