Ifosfamide, methotrexate, and 5-fluorouracil: effective combination in resistant breast cancer

Citation:
Gad-El-Mawla, N., M. R. Hamza, Z. K. Zikri, M. Elserafi, A. El-Khodari, H. Khaled, and R. Gafaar, "Ifosfamide, methotrexate, and 5-fluorouracil: effective combination in resistant breast cancer", Cancer Chemotherapy and Pharmacology, vol. 26, no. 1 Supplement: Springer-Verlag, pp. S85-S86, 1990.

Abstract:

Ifosfamide has definite efficacy in many malignant tumours, including breast cancer. In the present study we substituted cyclophosphamide with ifosfamide in the combination CMF (cyclophosphamide, methotrexate, and 5-fluorouracil) regimen in 25 patients with breast cancer whose disease was refractory to CMF or who had relapsed after previous response. Ifosfamide was given in an i.v. infusion at a dose of 1.2 g/m2 daily for 5 days, together with mesna as a uroprotector (at 20% of the ifosfamide dose). Methotrexate was given at a dose of 40 mg/m2 and 5-fluorouracil was given at 600 mg/m2, both by i.v. push. Courses were repeated every 21 days. The 24 evaluable patients received 3-12 courses (average, 5 courses); results included a complete remission in 3 patients (12.5%) and a partial remission in 3 (12.5%). Among the remaining patients, improvement was seen in 4 (16.6%); stable disease, in 7; and progressive disease, in 7 (29.2%). The complete responses lasted for 11+, 13+, and 15+ months, and partial remissions, for 2, 6, and 9 months. The responses were detected in soft-tissue as well as visceral lesions, but not in bony lesions. The responders remain under follow-up. This study shows the efficacy of ifosfamide-containing chemotherapy in breast cancer. As toxicities were tolerable, higher doses of ifosfamide could safely be used in these patients. Use of this combination as first-line therapy in breast cancer could be considered for a future study. © 1990 Springer-Verlag.

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