Transcenta Holding Limited and Agilent Technologies, said that they have collaborated to develop a Claudin18.2 (CLDN18.2) companion diagnostic to support TranStar301 global Phase III pivotal trial of Osemitamab (TST001) in combination with Nivolumab and chemotherapy as first-line treatment in patients with CLDN18.2 expressing locally advanced or metastatic gastric or gastroesophageal adenocarcinoma.
Transcenta has developed a mouse anti-CLDN18.2 monoclonal antibody, clone 14G11 which specifically binds to CLDN18.2 but not CLDN18.1. This antibody, generated against a linear epitope located on the extracellular domain of loop 1, has a binding site that overlaps with the binding site of therapeutic antibody Osemitamab (TST001).
Agilent is developing Claudin18.2 IHC 14G11 pharmDx, an immunohistochemistry (IHC) assay for the detection of CLDN18.2 protein in gastric and gastroesophageal junction (GEJ) adenocarcinoma with the potential for other indications. Agilent and Transcenta presented the early results of the Claudin18.2 IHC 14G11 pharmDx assay at AACR Annual Meeting. Claudin18.2 IHC 14G11 pharmDx for Investigational Use Only/for Performance Evaluation Only will be used for patient selection in the phase III trial of gastric/GEJ adenocarcinoma where applicable ethics committee and regulatory approvals have been granted.
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April 17, 2026 15:29 ET The ongoing conflict in the Middle East continues to raise concerns for policymakers who worry about the impact of the supply shock and high energy prices on the real economy. Producer price data and various survey results on the housing market were the main news from the U.S. this week. In Europe, industrial production data for the euro area gained attention. GDP figures out of China and the policy move by the Singapore central bank were in focus in Asia.