Chemotherapy plus sequential hormonal therapy for advanced and recurrent endometrial carcinoma: a phase II study.
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We evaluated the therapeutic value of sequential cyclical hormonal therapy (megestrol acetate, and tamoxifen citrate) plus single-agent chemotherapy (carboplatin) in the outpatient management of advanced or recurrent endometrial cancer. Carboplatin (300 mg/m2) was administered every 4 weeks for six courses or until disease progression. In addition, patients alternated megestrol acetate (80 mg orally twice daily) with tamoxifen citrate (20 mg orally twice daily) every 3 weeks. Thirteen of 18 (72.2%) patients were considered evaluable. Four patients (30.8%) had a complete response, six (46.2%) had a partial response, one (7.7%) had stable disease, and two patients (15.4%) progressed. Six of seven patients with vaginal disease responded. The median progression-free interval was 14 months for complete responders. Two patients (15.4%) are alive with no evidence of disease at 41 and 59 months. Seven of 13 patients experienced a hematologic toxicity (six grade 2, one grade 3); all resolved within 2 weeks. Dose reduction of carboplatin to 200 mg/m2 was required in one patient. No other toxicities were encountered. The median survival for all patients is 11 months, and is 33 months for complete responders. We conclude that a regimen of carboplatin plus sequential hormonal therapy shows promise in this pilot study for the treatment of advanced or recurrent endometrial cancer.
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