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[Alternating chemotherapy and hyperfractionated accelerated radiotherapy in non-metastatic inflammatory breast
A Hasbini1, C Le Péchoux, B Roche
1Département de radiothérapie, institut Gustave-Roussy, Villejuif, France.
Purpose:
Based on encouraging results reported in alternating radiotherapy and chemotherapy in inflammatory breast carcinoma, we have tried in this study to optimize locoregional treatment with a hyperfractionated accelerated radiotherapy schedule alternating with chemotherapy.
Patients And Methods:
From May 1991 to May 1995, 54 patients, previously untreated, with non-metastatic inflammatory breast cancer were entered in an alternating protocol consisting of eight courses of combined chemotherapy and two series of loco-regional hyperfractionated accelerated radiotherapy with a total dose of 66 Gy. Hyperfractionated accelerated radiotherapy was started after three courses of neoadjuvant chemotherapy (Adriamycin, Vincristine, Cyclophosphamide, Methotrexate, 5-fluoro-uracile) administered every 21 days +/- G.CSF. The first series delivered 45 Gy/three weeks to the breast, the axillary, subclavicular and internal mammary nodes, with two daily sessions of 1.5 Gy separated by an interval of eight hours; the second series consisted of a boost (21 Gy/14 fractions/10 d) alternating with another regimen of anthracycline-based-chemotherapy (a total of five cycles every three weeks). Hormonal treatment was given to all patients.
Results:
Of the 53 patients evaluated at the end of the treatment, 44 (83%) had a complete clinical response, seven (13%) had a partial response (> 50%) and two (4%) had tumoral progression. Of the 51 patients who were locally controlled, 18 (35%) presented a locoregional recurrence (LRR); eight (15%) had to undergo a mastectomy. All the patients but two with LRR developed metastases or died of local progressive disease and 26 (50%) developed metastases. With a median follow-up of 39 months (range: 4-74 months), survival rates at three and five years were respectively, 66 and 45% for overall survival and 45 and 36% for disease-free survival.
Conclusion:
Alternating a combination of chemotherapy and hyperfractionated accelerated radiotherapy is a well-tolerated regimen which provides acceptable local control. The systemic dissemination remains the major problem of inflammatory breast carcinoma and further clinical trials using alternative drug regimens are warranted.