PURPOSE: To determine the efficacy of gemcitabine (GEM) plus vinorelbine (VRL) administered biweekly in pretreated patients with advanced breast cancer. PATIENTS AND METHODS: Advanced breast cancer patients without response, with stable disease, or with recurrence within 6 months of prior treatment were given GEM 1,000 mg/m(2) and VRL 25 mg/m(2), once every 2 weeks for at least six cycles. RESULTS: Of the 51 patients enrolled, 50 (median, age 58 years; range, 34 to 76 years) were assessable. All patients had prior chemotherapy with an anthracycline-related regimen that included taxanes in 50% of the cases. Four patients (8%) had a complete response (CR) and 23 (46%) had a partial response (PR), for an overall response rate of 54%; 16 (32%) had stable disease and 7 (14%) experienced disease progression. Response occurred mainly in patients with soft tissue (83.3%) and lung metastasis (66.7%). Response duration was 4 to 8+, 4 to 9+, and 4 to 9 months for those with CR, PR, and stable disease, respectively. The regimen was well tolerated, with grade 1 to 2 myelotoxicity and asthenia reported. No patient required a dose reduction. Gastrointestinal side effects were negligible. Patients received 99.7% (range, 93.0% to 100.0%) of the planned dose-intensity of each drug. CONCLUSION: GEM in combination with VRL is an active regimen for advanced breast cancer patients, and biweekly administration significantly reduces myelotoxicity.
PURPOSE: To determine the efficacy of gemcitabine (GEM) plus vinorelbine (VRL) administered biweekly in pretreated patients with advanced breast cancer. PATIENTS AND METHODS: Advanced breast cancerpatients without response, with stable disease, or with recurrence within 6 months of prior treatment were given GEM 1,000 mg/m(2) and VRL 25 mg/m(2), once every 2 weeks for at least six cycles. RESULTS: Of the 51 patients enrolled, 50 (median, age 58 years; range, 34 to 76 years) were assessable. All patients had prior chemotherapy with an anthracycline-related regimen that included taxanes in 50% of the cases. Four patients (8%) had a complete response (CR) and 23 (46%) had a partial response (PR), for an overall response rate of 54%; 16 (32%) had stable disease and 7 (14%) experienced disease progression. Response occurred mainly in patients with soft tissue (83.3%) and lung metastasis (66.7%). Response duration was 4 to 8+, 4 to 9+, and 4 to 9 months for those with CR, PR, and stable disease, respectively. The regimen was well tolerated, with grade 1 to 2 myelotoxicity and asthenia reported. No patient required a dose reduction. Gastrointestinal side effects were negligible. Patients received 99.7% (range, 93.0% to 100.0%) of the planned dose-intensity of each drug. CONCLUSION:GEM in combination with VRL is an active regimen for advanced breast cancerpatients, and biweekly administration significantly reduces myelotoxicity.
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