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  • Title: Chemotherapy for osteosarcoma without high-dose methotrexate: a 12-year follow-up on 53 patients.
    Author: Tunn PU, Reichardt P.
    Journal: Onkologie; 2007 May; 30(5):228-32. PubMed ID: 17460416.
    Abstract:
    BACKGROUND: The clinical relevance of polychemotherapy in osteosarcoma is undisputed and well proven. In this retrospective study we report the results of chemotherapy treatment without high-dose methotrexate (HDMTX) for osteosarcoma. PATIENTS AND METHODS: Between 1986 and 1992, 53 patients with stage IIB extremity osteosarcoma received multimodal therapy (age: 6-36 years, median 17 years). All patients received neoadjuvant and adjuvant chemotherapy with adriamycin, cisplatin, cyclophosphamide, and vincristine without HDMTX. In 60.4%, tumor volume was < or =150 ml and in 39.6% >150 ml. Surgical modalities were distributed as follows: 71.7% of patients received limb-sparing surgery, 20.8% ablative surgery, and 7.5% rotationplasty. 35.8% of patients developed pulmonary metastases. RESULTS: Overall survival (OAS) was 71.7% after 5 years and 67.2% after 10 years. Ten-year OAS was not observed with local recurrences; without local recurrence 10-year OAS was 74.2% (p = 0.002). Five-year OAS was 31.6% in patients who developed pulmonary metastases. Ten-year OAS was 71.1% and 61.1% when tumor volume was < or =150 ml and >150 ml, respectively (p = 0.445). Ten-year OAS was 73.5% in responders to preoperative chemotherapy; in poor responders 62.1% (p = 0.353). Event-free 10-year survival was 70.8% in responders and 48.3% in poor responders (p = 0.099). CONCLUSION: Compared to treatment protocols including HDMTX similar survival rates were achieved.
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