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Editorial
. 2023 Apr;8(2):100778.
doi: 10.1016/j.esmoop.2022.100778. Epub 2023 Feb 13.

Claudin18.who? Examining biomarker overlap and outcomes in claudin18.2-positive gastroesophageal adenocarcinomas

Affiliations
Editorial

Claudin18.who? Examining biomarker overlap and outcomes in claudin18.2-positive gastroesophageal adenocarcinomas

S J Klempner et al. ESMO Open. 2023 Apr.
No abstract available

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Conflict of interest statement

Disclosure SJK reports consulting/advisory role in Eli Lilly, Merck, BMS, Novartis, Astellas, AstraZeneca, Daiichi-Sankyo, Novartis, Sanofi-Aventis, Natera, Exact Sciences, and Mersana; stock/equity in Turning Point Therapeutics and Nuvalent. YYJ reports consulting/advisory role in AmerisourceBergen Corporation, Arcus Biosciences, Inc., AstraZeneca, Axis Medical Education, Basilea Pharmaceutica International Ltd., Bristol-Myers Squibb, Clinical Care Options, Creative Educational Concepts, Inc., Daiichi Sankyo, Eli Lilly and Company, Geneos Therapeutics, Inc., GlaxoSmithKline, Imedex, Inc., Lynx Health LLC, Merck & Co Inc., Michael J. Hennessy Associates, PeerView Institute for Medical Education (PVI), Prova Education, Inc., Research to Practice, Rgenix (Ownership/Equity Interests), and Silverback Therapeutics, Inc. ZAW reports consulting for Amgen, Arcus, Astra Zeneca, Daiichi, Bayer, BMS, Merck, Ipsen, Lilly, Gilead, Arcus, Astellas, and Molecular Templates; and research grants from Arcus, BMS, and Plexxikon.

Figures

Figure 1
Figure 1
Potential future biomarker testing in advanced gastroesophageal adenocarcinomas. Current approaches rely on individual immunohistochemical tests for MMR assessment, HER2 testing, and PD-L1 CPS testing. CLDN18.2 and FGFR2b are emerging biomarkers utilizing IHC platforms. Molecular alterations detectable by tissue and/or plasma-based next-generation sequencing are shown on the right. amp, amplification; CPS, combined positive score; EGFR, epidermal growth factor receptor; ERBB2, Erb-B2 Receptor Tyrosine Kinase; FGFR2b, fibroblast growth factor receptor 2b; HER2, human epidermal growth factor receptor 2; IHC, immunohistochemistry; MET, MET proto-oncogene, receptor tyrosine kinase; MMR, mismatch repair; MSI, microsatellite instability; NTRK, neurotrophic receptor tyrosine kinase; PD-L1, programmed death-ligand 1; TMB, tumor mutation burden.

Comment on

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