VENTANA CLDN18 (43-14A) Assay is intended for the immunohistochemical detection of the Claudin 18 (CLDN18) protein in formalin-fixed, paraffin-embedded (FFPE) neoplastic tissues stained with BenchMark IHC/ISH instruments. This product should be interpreted by a qualified pathologist in conjunction with histological examination, relevant clinical information, and proper controls. This antibody is intended for in vitro diagnostic (IVD) use.