One paraffin block is routinely used for Human Epidermal Growth Factor Receptor 2 (Her2/neu) immunohistochemistry (IHC) assessment. Here, investigators investigated if picking two or multiple paraffin blocks for Her2/neu evaluation is an economical, efficient and practical method, which may reduce false-negativity of Her2/neu IHC assessment due to intratumoral heterogeneity.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
SINGLE
Enrollment
600
Assessing Her2/Neu Expression in Gastric Cancer With Dual or Multiple Tumor Tissue Paraffin Blocks
Assessing Her2/Neu Expression in Gastric Cancer With One Tumor Tissue Paraffin Blocks
180 Fenglin Road
Shanghai, Shanghai Municipality, China
RECRUITINGThe positive rate of cohort using dual or multiple tumor tissue paraffin blocks
Time frame: 24 months
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