HER2 IHC 3+ staining was observed in 15 (4.7%) of the 320 tumor samples analyzed and HER2 IHC 2+ in 26 (8.1%; Table 1). Low HER2 expression (IHC 0 or 1+) was detected in the 279 (87.2% ...

HER2-low (IHC 1+ or IHC 2+/ISH-) or HER2-ultralow (IHC 0 with membrane staining) breast cancer who have progressed on at least one endocrine therapy in the metastatic setting. Enhertu first ...

Rabbit Monoclonal Primary Antibody Package Insert [4] NORDIQC HER2 IHC Assessment Run B37 2024 [5] Mayr D, et al. Comprehensive immunohistochemical analysis of Her-2/neu oncoprotein overexpression in ...