PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: No prior therapy with cytotoxic drugs No prior doxorubicin HCl liposome No prior doxorubicin greater than 360 mg/m2 No other concurrent antineoplastic agents Endocrine therapy: Not specified Radiotherapy: Recovered from prior radiotherapy No prior radiotherapy for any other malignancy Surgery: Recovered from prior surgery Other: No other concurrent investigational agents