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Thirty-seven patients (pts) with previously untreated and measurable advanced soft tissue sarcoma entered this phase II study: 22 men and 15 women were included. Median age was 58 (range: 20-71). The starting dose of epirubicin was 100 mg/m2 IV bolus every 3 wks. In the case of minimal myelosuppression, the dose was increased by 10 mg/m2 to 130 mg/m2 (Mean dose per cycle: 105 mg/m2). Median cumulative dose of epirubicin administered was 445 mg/m2 (range: 200-1320 mg/m2). From 32 evaluable pts, one had a complete response (CR), 5 a partial response (PR), (CR + PR = 18.7% +/- 13.8%), 12 showed no change (37.5%) and 14 had progressive disease. The number of complete or partial responses observed was not modified by increasing the doses of epirubicin. Median time to progression was 4 months. From 32 pts evaluable for toxicity, hematologic toxicity at d 21 was mild. Non hematological toxicities consisted of nausea and vomiting in 74% of pts (WHO grade 3 = 5%), stomatitis in 12.2% (WHO grade 3 = 3%) and alopecia in 91% (WHO grade 2-3 = 72%). No cardiac dysfunction was recorded during the treatment, even though 7 patients received more than 800 mg/m2 of epirubicin (median: 850 mg/m2, range: 810-1320 mg/m2). The results of this study show that epirubicin is an active drug in advanced soft tissue sarcoma.