Annals of Oncology Advance Access originally published online on October 26, 2005
Annals of Oncology 2006 17(1):85-92; doi:10.1093/annonc/mdj034
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© 2005 European Society for Medical Oncology
Long-term cardiac toxicity after adjuvant epirubicin-based chemotherapy in early breast cancer: French Adjuvant Study Group Results
1 Centre Georges-François Leclerc, Dijon; 2 Institut Claudius Régaud, Toulouse; 3 Centre Eugène Marquis, Rennes; 4 Centre Oscar Lambret, Lille; 5 Centre Hospitalier Jules Courmont, Lyon; 6 Centre Antoine Lacassagne, Nice; 7 Centre Hospitalier André Boulloche, Montbéliard; 8 Clinique Saint-Vincent, Besançon; 9 Centre Hospitalier de Bretagne Sud, Lorient; 10 Centre Alexis Vautrin, Nancy, France
* Correspondence to: Prof. P. Fumoleau, Département d'Oncologie Médicale, Centre Georges François Leclerc, 1 rue du Professeur Marion, BP 77980, 21079 Dijon Cedex, France. Tel: +33-3-80-73-75-06; Fax: +33-3-80-73-77-12; E-mail: pfumoleau{at}dijon.fnclcc.fr
Background: The aim of the study was to evaluate and compare incidence and risk factors of left ventricular dysfunction (LVD) in early breast cancer patients receiving (E+) or not (E) epirubicin-based adjuvant chemotherapy.
Patients and methods: Among eight FASG trials, 3577 assessable patients were analyzed retrospectively: 2553 received epirubicin, 662 received hormonotherapy alone and 362 had no systemic treatment. Chemotherapy was FEC regimen in 86% of cases (fluorouracil, epirubicin, cyclophosphamide). Epirubicin cumulative dose was <300 mg/m2 in 1040 patients, 300600 in 1155,
600 in 279, followed by radiotherapy in 96% of cases.
Results: Twenty delayed LVD occurred: two in E patients and 18 in E+ patients. In E+ patients, 14 patients normalized their cardiac function or did not require further investigations, one patient was stabilized with specific treatment, two patients worsened their functions and one died of congestive heart failure. The 7-year risk of LVD was 1.36% (95% CI 0.851.87) in E+ patients and 0.21% (95%CI: 0.000.52) in E patients (P = 0.004). Two significant risk factors were identified: age
65 years and body mass index >27 kg/m2.
Conclusion: After a long-term follow-up, epirubicin-related LVD risk was acceptable (1.36%) with one toxic death (0.04%). In 78% of cases, LVD were transient or well controlled.
Key words: adjuvant chemotherapy, breast cancer, epirubicin, cardiotoxicity
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