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GASTRIC HER2 - GHER2
GHER2
Analytes/procedures in bold type are regulated for proficiency testing by the Centers for Medicare & Medicaid Services (CMS).
Analyte
Challenges per Shipment
Number of Shipments
HER2
10
Two shipments per year
Additional Information
The Gastric HER2 program fulfills the proficiency testing requirement stated in the CAP/ASCP/ASCO Gastroesophageal HER2 Testing Guideline.
The interpretive criteria for HER2 immunohistochemistry performed on gastroesophageal adenocarcinomas differs significantly from breast carcinoma. The GHER2 program will help participating laboratories understand these differences.
The Gastric HER2 program also fulfills the proficiency testing requirement for new "Pan-Tumor HER2" treatment indications, since the assay-scoring system combination is the same for both Pan-Tumor and Gastric HER2.
Program Information
One 10‑core microarray slide with tumor tissue and/or cell line derived cores
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