Long-term Safety and Efficacy of GBG Study Participants

The ETERNITY study is an international, multicenter, observational study that aims to follow up patients who have participated in a GBG trial for early breast cancer, even after the study has officially ended, in order to collect long-term data on survival, late or delayed adverse events, in addition to information related to pregnancy, fertility and other parameters impacting quality of life.

Inclusion criteria:Participation and treatment in a GBG clinical trial for early breast cancer.Prospective registration: Written informed consent according to local regulatory requirements prior to data and biomaterial collection.Exclusion criteria:Participation and treatment in a non-GBG clinical trial for early breast cancer.Patients with advanced or metastatic breast cancer who have participated and received treatment in a GBG clinical trial.