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- W2045704211 abstract "Purpose: To compare two different timings of radiation treatment in patients with breast cancer who underwent conservative surgery and were candidates to receive adjuvant cyclophosphamide, methotrexate, and fluorouracil (CMF) chemotherapy. Methods and Materials: A total of 206 patients who had quadrantectomy and axillary dissection for breast cancer and were planned to receive adjuvant CMF chemotherapy were randomized to concurrent or sequential radiotherapy. Radiotherapy was delivered only to the whole breast through tangential fields to a dose of 50 Gy in 20 fractions over 4 weeks, followed by an electron boost of 10–15 Gy in 4–6 fractions to the tumor bed. Results: No differences in 5-year breast recurrence-free, metastasis-free, disease-free, and overall survival were observed in the two treatment groups. All patients completed the planned radiotherapy. No evidence of an increased risk of toxicity was observed between the two arms. No difference in radiotherapy and in the chemotherapy dose intensity was observed in the two groups. Conclusions: In patients with negative surgical margins receiving adjuvant chemotherapy, radiotherapy can be delayed to up to 7 months. Concurrent administration of CMF chemotherapy and radiotherapy is safe and might be reserved for patients at high risk of local recurrence, such as those with positive surgical margins or larger tumor diameters. Purpose: To compare two different timings of radiation treatment in patients with breast cancer who underwent conservative surgery and were candidates to receive adjuvant cyclophosphamide, methotrexate, and fluorouracil (CMF) chemotherapy. Methods and Materials: A total of 206 patients who had quadrantectomy and axillary dissection for breast cancer and were planned to receive adjuvant CMF chemotherapy were randomized to concurrent or sequential radiotherapy. Radiotherapy was delivered only to the whole breast through tangential fields to a dose of 50 Gy in 20 fractions over 4 weeks, followed by an electron boost of 10–15 Gy in 4–6 fractions to the tumor bed. Results: No differences in 5-year breast recurrence-free, metastasis-free, disease-free, and overall survival were observed in the two treatment groups. All patients completed the planned radiotherapy. No evidence of an increased risk of toxicity was observed between the two arms. No difference in radiotherapy and in the chemotherapy dose intensity was observed in the two groups. Conclusions: In patients with negative surgical margins receiving adjuvant chemotherapy, radiotherapy can be delayed to up to 7 months. Concurrent administration of CMF chemotherapy and radiotherapy is safe and might be reserved for patients at high risk of local recurrence, such as those with positive surgical margins or larger tumor diameters. In regards to Arcangeli et al. (Int J Radiat Oncol Biol Phys 2006;64:161–167)International Journal of Radiation Oncology, Biology, PhysicsVol. 65Issue 2PreviewWe read with interest the article by Giorgio et al. dealing with sequencing of radiotherapy and chemotherapy in early breast cancer (1). Indeed, the authors have provided novel insight into the world of concurrent chemotherapy administration in breast carcinoma, a rather unexplored area. The authors deserve credit for reporting a well conducted randomized trial using cyclophosphamide-methotrexate-5-fluorouracil (CMF) concurrently with radiotherapy vs. radiotherapy alone in carcinoma breast patients. Full-Text PDF" @default.
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- W2045704211 date "2006-01-01" @default.
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- W2045704211 title "A phase III randomized study on the sequencing of radiotherapy and chemotherapy in the conservative management of early-stage breast cancer" @default.
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- W2045704211 doi "https://doi.org/10.1016/j.ijrobp.2005.06.040" @default.
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