A Phase II Study of Leuprolide in Advanced/Recurrent Endometrial Cancer
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In order to determine the efficacy and toxicity of the gonadotrophin-releasing hormone agonist Leuprolide in the management of patients with recurrent or metastatic endometrial cancer, we performed a phase II study. Patients were included if there was clinical or radiological documentation of bidimensionally measurable recurrent or metastatic endometrial cancer that was deemed incurable. Treatment was 7.5 mg i.m. every 28 days, and was to continue for at least 2 courses until evidence of disease progression, patient requested withdrawal, or unacceptable toxicity. Twenty-five patients received Leuprolide for recurrent or metastatic endometrial cancer. The median age at study entry was 62 years, and the median time from initial diagnosis to first course of Leuprolide was 25 months. Six patients had received no systemic or radiotherapy prior to study entry, and 2 of these had not previously undergone hysterectomy. Fifteen patients received prior pelvic radiotherapy and 3 patients received prior whole abdominal radiotherapy. Nine of the 25 patients had received prior progestational agents, and 2 had received prior systemic chemotherapy. There were no responders, 8 patients had stable disease for a median 5 months (range 1-8), 14 patients progressed on therapy, and 3 patients were not evaluable for response due to receiving only 1 treatment. One patient experienced a grade 3 toxicity that was possibly attributable to Leuprolide (deep venous thrombosis). The median survival from study entry was 6 months. Twelve patients received progesterone after discontinuing this study, and none responded. Leuprolide does not appear to be a clinically active agent in the treatment of recurrent or metastatic endometrial cancer.
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