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Nonrandomized comparison between concomitant and sequential chemoradiotherapy with anthracyclines in breast cancer

Abstract

Purpose

To evaluate the tolerance of concomitant administration of anthracycline-based chemotherapy (CHT) and 3-dimensional conformal radiotherapy (RT) after breast-conserving surgery.

Methods and Materials

Sixty-seven patients, treated with conservative surgery followed by 3-dimensional whole breast RT and concomitant CHT regimens including “Canadian modified” CEF (5-fluorouracil, epirubicin, cyclophosphamide) or AC (doxorubicin, cyclophosphamide) were evaluated for toxicity. They were compared in terms in compliance and acute toxicity with 67 patients irradiated sequentially after having received anthracyclines.

Results

Acute grade ≥2 skin toxicity was significantly higher in the concomitant group compared to the sequential group, although the incidence of Grade 3 desquamation showed no statistical difference (9% vs. 3%, p = 0.14). Haematological toxicity represented the main cause of treatment discontinuation, reporting higher rate of grade 3-4 leuco-neutropenia in the concomitant group (20.9% vs. 6%, p = 0.01). Mean RT duration was longer in the concomitant group (51 days vs. 45 days) owing to RT breaks. Late toxicity was acceptable. No symptomatic lung and heart events were reported. Radiological lung hyperdensity was detected in 27.7% of the patients in the concomitant group. Post-treatment left ventricular ejection fraction significantly decreased compared with baseline, but cardiac function remained within the normal range, without any difference between left or right-sided RT.

Conclusions

Although there was more acute grade ≥2 skin toxicity in the concomitant group, the rate of grade 3 dermatitis was lower than expected, suggesting some advantages of 3-D CRT over older techniques. Haematological toxicity exerted a significant impact on both RT and CHT delivery.

Tumori 2015; 101(1): 64 - 71

Article Type: ORIGINAL RESEARCH ARTICLE

DOI:10.5301/tj.5000218

Authors

Maria Cristina Leonardi, Anna Morra, Luigi Santoro, Alessandra Balduzzi, Giovanni Battista Ivaldi, Barbara Vischioni, Annamaria Ferrari, Cristiana Fodor, Veronica Dell’Acqua, Daniela Maria Cardinale, Carlo Cipolla, Alberto Luini, Marco Colleoni, Barbara Alicja Jereczek-Fossa, Roberto Orecchia

Article History

Disclosures

Financial support: No financial support was received for this sub­mission.
Conflict of interest: The authors have no conflict of interest.
Meeting presentation: This paper was presented as a poster at the 50th annual meeting of ASTRO, Boston, Massachusetts, September 21-25, 2008.

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Authors

Affiliations

  • Division of Radiotherapy, European Institute of Oncology, Milan - Italy
  • Division of Epidemiology and Biostatistics, European Institute of Oncology, Milan - Italy
  • Research Unit in Medical Senology, Department of Medicine, European Institute of Oncology, Milan - Italy
  • Department of Radiation Oncology, Maugeri Foundation, Pavia - Italy
  • National Centre for Hadron Therapy (CNAO), Pavia - Italy
  • Division of Cardiology, European Institute of Oncology, Milan - Italy
  • Division of Senology, European Institute of Oncology, Milan - Italy
  • University of Milan, Milan - Italy

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