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- Title
Vinorelbine combined with paclitaxel infused over 96 hours (VI-TA-96) for patients with metastatic breast carcinoma.
- Authors
Cocconi, Giorgio; Mambrini, Andrea; Quarta, Maria; Vasini, Giovanna; Bella, Maria Angela; Ferrozzi, Francesco; Beretta, Myriam Debora; Cocconi, G; Mambrini, A; Quarta, M; Vasini, G; Bella, M A; Ferrozzi, F; Beretta, M D
- Abstract
<bold>Background: </bold>Vinorelbine (VI) and paclitaxel (TA) are among the most active single agents in the treatment of patients with breast carcinoma, and both have microtubules as their cytotoxic target. This Phase I-II study combined these 2 agents and used a 96-hour intravenous (i.v.) infusion of paclitaxel to maximize their cytotoxic activities.<bold>Methods: </bold>Patients with metastatic breast carcinoma who were previously treated with chemotherapy were administered increasing doses of a 96-hour paclitaxel i.v. infusion from Days 1 to 5, with a first fixed dose of vinorelbine (12.5 mg/m(2) on Days 1 and 5) every 3 weeks. The dose of paclitaxel was then decreased starting from the previously established tolerated dose, and a second fixed dose of vinorelbine (15 mg/m(2) on Days 1 and 5) was given. This identified 2 acceptable doses of paclitaxel (110 mg/m(2) with VI 12.5 mg/m(2) and 90 mg/m(2) with VI 15 mg/m(2)). The latter was used in the subsequent Phase II study.<bold>Results: </bold>For the 50 patients treated with any dose, the complete response (CR) and the CR plus partial response (PR) rates were, respectively, 14% and 48% (95% confidence interval [CI], 34-67%). When only the 27 patients treated with the Phase II dose were considered, the figures were, respectively, 11% and 52% (95% CI, 42-62%). The median time to progression was 26 weeks, and the median survival 51 weeks. The dose-limiting toxicity was febrile neutropenia.<bold>Conclusions: </bold>At the dose schedule identified for the Phase II study, the VI-TA-96 combination has considerable antitumor activity; pharmacoeconomic interest (it requires about half the doses of the agents administered singly); no major toxicity, except G4 neutropenia; and no need for premedication. This combination may be recommended as one of the most effective therapeutic options for patients with metastatic breast carcinoma who were pretreated mainly with anthracycline-containing chemotherapy.
- Publication
Cancer (0008543X), 2000, Vol 88, Issue 12, p2731
- ISSN
0008-543X
- Publication type
journal article
- DOI
10.1002/1097-0142(20000615)88:12<2731::AID-CNCR11>3.0.CO;2-9