Adjuvant chemotherapy for osteogenic sarcoma.
1978
: Twenty-nine evaluable patients with nonmetastatic osteosarcoma were given sequential combination chemotherapy utilizing high-dose methotrexate with citrovorum factor rescue, vincristine, adriamycin, and cyclophosphamide. Fourteen (48%) of 29 patients are currently disease-free for 8--48 months from initiation of chemotherapy with a median disease-free survival of 21 months. The projected 4-year disease-free survival is 13%. At 4 years the projected overall survival is 57%. In this particular study, adjuvant chemotherapy does not appear to significantly prevent the development of overt metastases. In four patients, delayed onset of metastasis was observed at 18--43 months from initiation of treatment.
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