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A comparison of the outcomes of non-randomised chemotherapy regimens in node positive breast cancer.
Adjuvant chemotherapy increases disease-free survival (DFS) and overall survival (OS) following surgery for breast cancer. However, debates concerning the type of adjuvant chemotherapy continue. The effect of adjuvant chemotherapy on loco-regional recurrence-free survival (LFS) was also reported. The present study was undertaken to compare the results of adjuvant FAC (5-fluorouracil, Doxorubicin, Cyclophosphamide) and CMF (Cyclophosphamide, Methotrexate, 5-fluorouracil) chemotherapy on DFS, OS and LFS for node positive breast carcinoma treated with mastectomy in a non-randomised setting. Data from 688 consecutive lymph node positive breast cancer patients who underwent radical or modified radical mastectomy and received adjuvant FAC (600/60/600 mgr/m2 for 6 cycles every three weeks) or CMF (600/40/600 mgr/m2 for 6 cycles on days land 8 every four weeks) chemotherapy were reviewed. The effect of FAC on DFS, OS and LFS as compared with CMF was analysed. Survival curves were generated by the Kaplan-Meier method, and a multivariate analysis was performed by the Cox proportional hazard model. Adjuvant FAC was found to improve DFS, OS and LFS. 5-year DFS, OS and LFS were longer for patients treated with FAC as compared to CMF (67% versus 53%, p < 0.001; 77% versus 66%, p < 0.001, and 97% versus 91%). Adjusted hazard ratio (HR) for potential risk factors and tamoxifen treatment showed that FAC treated patients much benefitted in terms of survival as compared to CMF treated patients (HR 0.53, CI 0.40-0.69 for DFS; HR 0.48, CI 0.35-0.65 for OS, and HR 0.33, CI 0.16-0.65 for LFS). In conclusion, adjuvant FAC improves DFS, OS and LFS as compared to CMF in node positive breast carcinoma patients treated with mastectomy.
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Antineoplastic Combined Chemotherapy Protocols
Combined Modality Therapy
Pub Type(s)Comparative Study
Controlled Clinical Trial