Trastuzumab, tested only as a single agent, has been shown to achieve 7% response in heavily pretreated patients with AOC with 3+ and 2+ HER2 immunostaining by immunohistochemistry (IHC).

The analysis was performed on independent study sets of HER2-positive and negative/low breast cancers, already analyzed by central immunohistochemistry (IHC) and FISH testing. Phospho-HER2 and ...

Specifically, Enhertu (trastuzumab deruxtecan) has been cleared to treat HR-positive, HER2-low metastatic breast cancer – an immunohistochemistry (IHC) score of 1+ or 2+ or negative for in situ ...

Breast cancer classed as HER2-positive – defined as an immunohistochemical (IHC) score of three or more – accounts for somewhere between 20% to 25% of all patients with the disease.

HER2 negative (IHC 0, IHC 1+ or IHC 2+/ISH-) breast cancer who have received endocrine therapy and at least one line of chemotherapy in the advanced setting. DATROWAY is a specifically engineered ...

advanced or metastatic breast cancer in patients with human epidermal growth factor receptor 2 (HER2) low (IHC 1+ or IHC 2+/ISH–) or HER2-negative (IHC 0) disease, including TNBC, who have ...