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  • Title: [Evaluation of two different regimens as neoadjuvant chemotherapy for breast cancer].
    Author: Yang D, Tong F, Cao Y, Liu P, Zhou B, Liu H, Qiao X, Zhang J.
    Journal: Zhonghua Zhong Liu Za Zhi; 2002 May; 24(3):303-5. PubMed ID: 12515634.
    Abstract:
    OBJECTIVE: To compare the efficacy and toxicity of two different regimens as neoadjuvant chemotherapy for breast cancer. METHODS: Forty-eight patients with stage II, III breast cancer as proved by cytology biopsy, were treated with either 5-Fu, epirubicin, cyclophosphamide (FEC) or epirubicin, paclitaxel (ET) regimens for 2 cycles every 3 - 4 weeks. Clinical responses in the breast and lymph nodes were assessed after 2 cycles of neoadjuvant chemotherapy. Patients in FEC arm received combination of 5-fluorouracil (5-Fu) 500 mg/m(2) by 4-hour continuous infusion on D1 and D8, epirubicin (EPI) 50 mg/m(2) by intravenous injection on D1, and cyclophosphamide (CTX) 500 mg/m(2) by intravenous injection on D1 and D8. Patients assigned to the ET arm received EPI 60 mg/m(2) by intravenous injection on D1, paclitaxel (TAX) 150 mg/m(2) by 3-hour continuous infusion on D2. All patients were treated by operation 2 weeks later and radiotherapy was added to some. RESULTS: For primary tumor in the breast, the overall response rate (RR) was 50.0% (12/24) in FEC arm and 79.2% (19/24) in ET arm. One patient showed clinical complete response (cCR), 11 partial response (PR), 12 no change (NC) after the FEC therapy, while 1 patient showed CR, 18 PR, 5 NC after ET therapy. There was no pathologic complete response or progressive disease, though a higher proportion of RR was observed in stage II than stage III patients in these two groups. Clinically palpable axillary lymph nodes which had been found in all 48 patients before 2 cycles of treatment, 50.0% (12/24) in the FEC patients and 66.7% (16/24) in the ET patients became in-palpable. The major toxicity, including leukopenia, gastroenteric reactions, were similar in both groups, but alopecia was more severe and arthralgia, myalgia, neurotoxicity and flushing of face were the unique features of the ET regimen. CONCLUSION: Neoadjuvant chemotherapy with two different regimens were effective to the primary tumor and axillary metastatic lymph nodes of breast cancer, and the side effects were tolerable. Higher efficacy and more side effects are observed in ET than in FEC regimen.
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