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  • Title: Adjuvant chemotherapy with cyclophosphamide, methotrexate, and 5-fluorouracil, vincristine, and prednisone compared with single-agent L-phenylalanine mustard for patients with operable breast carcinoma and positive axillary lymph nodes: 20-year results of a Southwest Oncology Group study.
    Author: Rivkin SE, Green SJ, Lew D, Costanzi JJ, Athens JW, Osborne CK, Vaughn CB, Martino S.
    Journal: Cancer; 2003 Jan 01; 97(1):21-9. PubMed ID: 12491501.
    Abstract:
    BACKGROUND: Adjuvant combination chemotherapy with cyclophosphamide, methotrexate, and 5-fluorouracil plus vincristine and prednisone (CMFVP) was compared with single-agent L-phenylalanine mustard (L-PAM) for the treatment of patients with axillary lymph node positive primary breast carcinoma over 20-years of follow-up. METHODS: Four hundred forty-one women with axillary lymph node positive breast carcinoma were randomized to receive either combination chemotherapy with cyclophosphamide (60 mg/m(2) orally every day for 1 year), fluorouracil (300 mg/m(2) intravenously [IV] weekly for 1 year), methotrexate (15 mg/m(2) IV weekly for 1 year), vincristine (0.625 mg/m(2) IV for 10 weeks), prednisone (30 mg/m(2) orally on Days 1-14, 20 mg/m(2) on Days 15-28, and 10 mg/m(2) on Days 29-42), or single-agent chemotherapy with L-PAM (5 mg/m(2) orally every day for 5 days every 6 weeks for 2 years) after undergoing surgery. Patients were stratified according to menopausal status and number of positive lymph nodes (1-3 positive lymph nodes or > 3 positive lymph nodes). Seventy-seven patients were ineligible. RESULTS: The maximum follow-up is 24 years, with a median follow-up of 21.5 years. Disease free survival and overall survival were superior with CMFVP (two-sided log-rank test; P = 0.0008 and P = 0.007, respectively). For all patients, the estimated 20-year survival rate of patients who received CMFVP was 40% compared with 27% for patients who received L-PAM. There was a substantial survival benefit for CMFVP compared with L-PAM in the subsets of premenopausal patients and patients with four or more positive lymph nodes. The estimated 20-year survival rate for premenopausal women who received CMFVP was 49% compared with 33% for premenopausal women who received L-PAM. Among women with > or = 4 positive lymph nodes, the estimated survival rate for patients who received CMFVP was 31% compared with 15% for patients who received L-PAM. Both regimens were tolerated well. Toxicity was more severe and frequent among patients who received CMFVP. CONCLUSIONS: The authors conclude that, after 20 years of follow-up, adjuvant chemotherapy with CMFVP remains superior to L-PAM for the treatment of patients with lymph node positive breast carcinoma.
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