Esorubicin in advanced endometrial cancer: an ineffective and potentially toxic therapy. A Southwest Oncology Group study.

The Southwest Oncology Group conducted a phase II study of esorubicin treatment in patients with advanced endometrial cancer who had received no prior chemotherapy. Twenty of 31 patients were fully evaluable for response and toxicity. There were no clinical responses to treatment and 60% (12/20) of the patients developed severe or life threatening leukopenia on therapy. One evaluable patient was removed from study after a cumulative dose of 150 mg/M2 due to a reduction in left ventricular ejection fraction on MUGA scan and another developed congestive heart failure several months after discontinuation of treatment. Esorubicin has significant toxicity and limited clinical activity in patients with advanced endometrial cancer.