A phase II trial of vinorelbine and thiotepa in metastatic breast cancer

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Abstract
Vinorelbine as single-agent has achieved an overall response rate of >20% as second-line treatment and 40%–50% as first-line treatment. The aim of this study was to evaluate the activity and toxicity of the combination of vinorelbine and thiotepa as second-line treatment in patients with metastatic breast cancer. Thirty-three patients (31: anthra-cycline-based chemotherapy, 16: high-dose epirubicin) were given vinorelbine 30 mg/m2 and thiotepa 12 mg/m2 d 1 and 8 every 21 days. Among the 32 evaluable patients two complete responses and seven partial responses were observed, for an overall response rate of 28% (C.I. 12–44). The median duration of response was 9 months and the median time to progression 6 months. Significant toxicity was primarily leukopenia (72%); anemia was also frequent (48%) as well as local phlebitis (39%). The present study has shown this combination to be active as second-line treatment, and its toxic effects have been well tolerate. It should be considered a reasonable option for patients with metastatic disease who have already been treated with anthracyclines.

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