Roche Pathway HER2 (4B5) test gets expanded approval
Feb. 3, 2025—The Food and Drug Administration approved a label expansion for the Roche Pathway anti-HER2/neu (4B5) Rabbit Monoclonal Primary Antibody to identify patients with hormone-receptor-positive, HER2-ultralow metastatic breast cancer who may be eligible for treatment with Enhertu.


