title: [Treatment of relapsed osteosarcoma. Role of chemotherapy using ifosamide and carboplatin].
abstract: Our investigation involved 27 patients with osteosarcoma and 2--malignant fibrous histiocytoma of long tubular bones treated at the Center's Clinics (2001-2008). Two regimes were used for relapsed tumor: ifosamide up to 5-10 g/m2 (median 7.5) + carboplatin 300-750 mg/m2 (median 350) + etoposide 300-500 mg/m2 (median 450) (ICE), or doxorubicin 50-80 mg/m2 (median 60) (ICA). Surgical treatment used atypical resection of the lung or precision excision of metastasis. Median post-relapse follow-up was 18 months. When ICE was used, partial effect was reported in 3 (17.6%), stabilization--10 (58.8%), and tumor progression--4 (23.5%); ICA: partial effect--3 (25%), stabilization--6 (50%), tumor progression--3 (25%). Metastases were removed after a course of chemotherapy in 16 cases. Overall 3- and 5-year survival was 51.6 +/- 11% and 34.4 +/- 16%, respectively. Relatively more aggressive was the course of the disease in cases of early relapse (< or = 12 months), combination of local recurrence and distant metastasis and those who had not survived until a second surgical remission. Hence, timely combination therapy of relapsed high-grade osteosarcoma may secure relatively long remission in 35-40.3%.
authors.forename: G N
authors.initials: GN
authors.lastname: Machak
authors.forename: B E
authors.initials: BE
authors.lastname: Polotskiĭ
authors.forename: O M
authors.initials: OM
authors.lastname: Meluzova
authors.forename: I S
authors.initials: IS
authors.lastname: Chernov
authors.forename: M D
authors.initials: MD
authors.lastname: Aliev
mesh_terms: D000293:Adolescent; D000328:Adult; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D001859:Bone Neoplasms / Q000188:drug therapy* / Q000473:pathology*; D016190:Carboplatin / Q000008:administration & dosage; D017024:Chemotherapy, Adjuvant; D004317:Doxorubicin / Q000008:administration & dosage; D005047:Etoposide / Q000008:administration & dosage; D005260:Female; D005500:Follow-Up Studies; D051677:Histiocytoma, Malignant Fibrous / Q000188:drug therapy* / Q000556:secondary; D006801:Humans; D007069:Ifosfamide / Q000008:administration & dosage; D053208:Kaplan-Meier Estimate; D008175:Lung Neoplasms / Q000556:secondary / Q000601:surgery; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000601:surgery*; D012516:Osteosarcoma / Q000188:drug therapy* / Q000556:secondary; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D005047:Etoposide; D004317:Doxorubicin; D016190:Carboplatin; D007069:Ifosfamide