Preliminary results of a randomized trial of adjuvant doxorubicin for sarcomas: lack of apparent difference between treatment groups.

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Abstract
Forty-two patients with localized intermediate and high-grade sarcoma were randomized after optimal primary treatment to receive five cycles of adjuvant doxorubicin 90 mg/m2 every three weeks (20 patients) or observation (22 patients). Patients were stratified for grade, size, extent of surgical margin, and soft tissue versus other sarcomas. Groups appeared balanced for histology and superficial versus deep lesions. Eight patients (19%) have died. Follow-up times range from two to 69 months (median, 16 months). Two patients receiving doxorubicin (10%) developed cardiotoxicity presenting as pulmonary edema. One patient returned to normal activity on digoxin and diuretics; the other (age, 28 years) died of intractable failure and arrhythmias after four weeks. While a nonsignificant difference in local control, metastasis-free survival, disease-free survival, and survival was observed for extremity lesions, the advantage may be outweighed by the risk of cardiotoxicity. Seventy-six percent of the control patients with extremity lesions remain disease free. Because control patients do well, a very large study is required to define the role of adjuvant doxorubicin.

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