A randomised three-arm multi-centre comparison of 1 year and 2 years of Herceptin® versus no Herceptin® in women with HER2-positive primary breast cancer who have completed adjuvant chemotherapy.
Randomization: No Herceptin Herceptin every 3 weeks x 1 year Herceptin every 3 weeks x 2 years
Objectives
To compare disease-free survival (DFS) in patients with HER2 overexpressing breast cancer who have been randomised to Herceptin® for one year versus no Herceptin®.
Endpoints
Primary endppoint:
Disease-free survival (no vs 1yr, no vs 2 yr Herceptin)
Secondary endpoints:
Overall survival 1 yr versus no en 2 yrs versus no Herceptin
Relapse-free survival
Distant disease-free survival
Safety and tolerability
Incidence of cardiac dysfunction
To compare outcomes (DFS, OS, RFS, DDFS, cardiac safety, overall safety) of patients treated with Herceptin® for one year compared with Herceptin® for two years
Eligibility Criteria
Primary breast cancer HER2 overexpression Completed (neo-)adjuvant systemic chemotherapy and radiotherapy