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  • Title: Phase II trial combining paclitaxel with 24-hour infusion cisplatin for chemotherapy-naïve patients with locally advanced or metastatic breast carcinoma.
    Author: Hsu C, Huang CS, Chao TY, Lu YS, Bu CF, Chen MM, Chang KJ, Cheng AL.
    Journal: Cancer; 2002 Nov 15; 95(10):2044-50. PubMed ID: 12412156.
    Abstract:
    BACKGROUND: Both paclitaxel and cisplatin are active as second-line chemotherapy for patients with breast carcinoma. A synergistic cytotoxicity of these two drugs has been demonstrated in vitro. This study sought to determine the efficacy of combining these two drugs in the treatment of chemotherapy-naïve patients with breast carcinoma. METHODS: The inclusion criteria for the study were 1) women with histologically proven breast carcinoma; 2) locally advanced disease, as defined by American Joint Committee on Cancer (AJCC) Stage T4 (locally advanced breast carcinoma [LABC]) or clinically proven metastases (metastatic breast carcinoma [MBC]); and 3) no prior cytotoxic chemotherapy. The regimen consisted of paclitaxel 175 mg/m(2) intravenously by 3-hour infusion immediately followed by cisplatin 50 mg/m(2) intravenously by 24-hour infusion on Day 1 and repeated every 3 weeks. After a maximal response to chemotherapy was achieved, patients with LABC underwent resection of their primary tumor if the procedure was not contraindicated. RESULTS: From July, 1999 to January, 2001, 46 patients were enrolled into this study (28 patients with LABC and 18 patients with MBC). Their median age was 49.5 years (range, 29.8-65.5 years). A total of 205 cycles of chemotherapy were given. All patients were evaluable for toxicity, and 45 patients were evaluable for response. There were 3 complete responses (CRs) and 24 partial responses (PRs), for an overall response rate of 58.7% (95% confidence interval, 44.5-72.9%). Grade 4 hypersensitivity (asthma) to paclitaxel occurred in one patient. Grade 3-4 nausea and emesis and Grade 3-4 myelosuppression occurred in six patients and four patients, respectively. Of the 28 patients with LABC, 2 patients achieved a CR, and 14 patients achieved a PR. Twenty-seven patients underwent mastectomy patients after chemotherapy. A pathologic CR was documented in one patient. Postoperatively, 23 patients with LABC received adjuvant chemotherapy, and 18 patients with LABC received adjuvant radiotherapy. During a median follow-up of 14.6 months, 5 of 28 patients with LABC developed recurrent disease, and 2 patients died of progressive disease, whereas 3 of 18 patients with MBC died of progressive disease. CONCLUSIONS: The combination of paclitaxel by 3-hour infusion and cisplatin by 24-hour infusion appears to be an active and well-tolerated regimen for chemotherapy-naïve patients with LABC or MBC.
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