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Single-agent oxaliplatin in pretreated advanced breast cancer patients: a phase II study
Purpose:
Oxaliplatin (L-OHP), a new platinum analogue, is an active drug in colorectal and ovarian cancer. In this phase II study we explored tolerability and activity of oxaliplatin as a single agent in metastatic breast carcinoma patients.
Patients And Methods:
Fourteen anthracycline pretreated advanced breast cancer patients were enrolled. Oxaliplatin was given at 130 mg/m2 on day 1 and repeated every three weeks. Analysis of toxicity, response rate and survival was performed.
Results:
The median number of courses per patient was four (range 2 6). The median administered dose-intensity was 43.3 mg/m2/week (range 32.5-43.3) which represents 100% of projected dose-intensity. No severe toxicity was encountered. Three patients developed acute transient laryngeal symptoms. Three patients displayed a partial response (21%), (95% confidence interval (CI): 0%-43%), two stable disease (14%) and nine progressed (64%). Response lasted five, four and five months respectively. Median survival was 12 months.
Conclusions:
In this limited experience, oxaliplatin appeared to be well tolerated and moderately active in advanced anthracycline-pretreated breast cancer patients. Combination chemotherapy with other active drugs such as 5-fluorouracil (5-FU), anthracyclines and taxanes should represent the next step of development of this new drug.