A comparison of methods of loco-regional chemotherapy combined with systemic chemotherapy as neo-adjuvant treatment of osteosarcoma of the extremity. |
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Authors: | G Bacci S Ferrari A Tienghi F Bertoni M Mercuri A Longhi G Fiorentini C Forni P Bacchini S Rimondini U De Giorgi P Picci |
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Institution: | Department of Chemotherapy, Istituto Ortopedico Rizzoli, Bologna, Italy. gaetano.bacci@ior.it |
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Abstract: | AIM: Our experience of pre-operative intraarterial (i.a.) vs intravenous (i.v.) infusion of cisplatinum (CDP) in a multiagent neo-adjuvant chemotherapy for osteosarcoma of the extremity is reported. METHODS: Two successive randomized studies were performed. In the first, pre-operatively, CDP i.a. vs CDP i.v. was applied in combination with high-dose methotrexate (HDMTX) and adriamycin (ADM) within a three-drug regimen. In the second, a combination of HDMTX, ADM and IFO, within a four-drug regimen was tested. RESULTS: The rate of responses to chemotherapy (tumour necrosis > or = 90%) was significantly higher (P<0.04) for the 142 patients treated with the four-drug regimen than in the 79 patients treated with a three-drug regimen (76%vs 62%). According to the route of CDP infusion, in the three-drug regimen the rate of responses was significantly higher (P=0.004) in patients treated with i.a. CDP (77%) than in patients treated i.v. (46%); with the four-drug regimen the rate of response was not significantly different in patients treated i.a. (81%) and in patients treated i.v. (71%). No significant differences in the rates of limb salvages, local recurrence and event-free survival (EFS) were seen between the i.a. and the i.v. groups. CONCLUSION: In the treatment of osteosarcoma of the extremity, the i.a. infusion of CDP does not offer any significant advantage when this drug is used within an aggressive, multiagent, pre-operative four-drug regimen. Copyright Harcourt Publishers Limited. |
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