HER2 CISH pharmDx Kit is a dual color chromogenic assay and by using a bright field microscope it can quantitatively determine HER2 gene amplifications in breast cancer tissue specimens and records HER2 score.

HER2 CISH pharmDx Kit is indicated as an aid in demonstrating patients for whom Herceptin treatment is being considered.

Dako said the clinical studies have shown that breast cancer patients whose tumors have high HER2 receptor overexpression and/or amplification benefit the most from Herceptin.

University of Rochester Medical Center Surgical Pathology director David Hicks said a clear advantage of HER2 CISH pharmDx Kit is that the stains are permanent and can be archived for later examination.