Estrogen receptor alpha (ER), progesterone receptor ... LS specimens from 354 patients for expression of ER, PR, and AR by immunohistochemistry (IHC) using diagnostic-grade reagents and protocols.

Panelists discuss how testing for specific changes in cancer cells, like ESR1 mutations, can help guide treatment choices for patients with hormone receptor-positive metastatic breast cancer.

Until prospective data are available, researchers recommend that patients with ER-low breast cancer “should be counseled regarding the potential benefit” of adjuvant endocrine therapy.

Northwestern Medicine investigators have discovered previously unknown metabolic changes that may contribute to the development of estrogen receptor–negative (ERneg) breast cancer, according to ...

During a live event, Megan Kruse, MD, discussed NCCN guidelines and key therapies for patients with HR-positive metastatic ...

Furthermore, several studies have investigated AI algorithms' use in immunohistochemistry to detect estrogen and progesterone ...

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It is also approved for unresectable locally advanced or metastatic hormone receptor-positive, human epidermal growth factor receptor 2-negative (immunohistochemistry [IHC] 0, IHC 1+ or IHC 2+/in ...