There is no specific treatment regimen for this study. This is an observational retrospective study in which the clinical decisions concerning the optimal strategy in the treatment of the disease for each patient have been taken independently and prior to the physician's decision to include patient data in this registry, in keeping with the drug information, local treatment guidelines and/or standard clinical practice.
The study target population are all patients (men and women) who have been newly diagnosed with invasive breast cancer between January 1, 2002 and December 31, 2005 and treated in the medical oncology departments of participating sites, ensuring an approximate follow-up of 10 years.
