title: Adjuvant chemotherapy for osteogenic sarcoma.
abstract: 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.
mesh_terms: D000293:Adolescent; D000328:Adult; D001859:Bone Neoplasms / Q000188:drug therapy* / Q000601:surgery; D002648:Child; D002675:Child, Preschool; D002986:Clinical Trials as Topic; D003520:Cyclophosphamide / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D002955:Leucovorin / Q000627:therapeutic use; D008297:Male; D008727:Methotrexate / Q000627:therapeutic use; D009362:Neoplasm Metastasis; D012516:Osteosarcoma / Q000188:drug therapy* / Q000601:surgery; D014750:Vincristine / Q000627:therapeutic use
chemical_list: D014750:Vincristine; D003520:Cyclophosphamide; D002955:Leucovorin; D008727:Methotrexate