[High-dose chemotherapy and autologous bone marrow transplantation in high-grade metastatic sarcomas].

Metastatic sarcomas have a poor prognosis with current therapeutic regimens. High dose chemotherapy (HDC) has proved to be efficient in a selected group of solid tumors. Nine patients with high grade metastatic sarcomas were treated with HDC followed by autologous bone marrow transplantation. Four patients received HDC as a consolidation of the complete response (CR) obtained with chemotherapy (CT) and two of them were free from disease at 27 and 41 months, respectively. Other four patients had a disease total or partially refractory to conventional CT, and in one case the sensitivity to the chemotherapeutical agents was unknown. In these five cases a partial response was observed in two of the three who had measurable response parameters, but all of them died because of disease progression in a short period of time. These results suggest that there are active HDC schedules on metastatic sarcomas, but its possible benefit would be limited to the consolidation of a CR obtained with previous CT. HDC is a therapeutical alternative under investigation in patients with metastatic sarcomas with an indication that could be extended to cover localized sarcomas with poor prognosis.