Phase II trial of piperazinedione in patients with advanced or recurrent uterine sarcoma. A Gynecologic Oncology Group study.

Twenty patients with advanced or recurrent uterine sarcoma no longer amenable to control with surgery and/or radiotherapy were entered into study by Gynecologic Oncology Group institutions to receive piperazinedione 9 mg/m2 intravenously every 3 weeks. One patient was deemed to be ineligible for study. Among the 19 evaluable patients, only one response was observed, a partial response in a patient with leiomyosarcoma. Adverse effects consisted primarily of myelosuppression and were tolerable. Piperazinedione at the dose and schedule tested appears to have little activity against uterine sarcomas.