FDA approves companion diagnostic for Opdivo for ESCC and GEJ, gastric, and esophageal adenocarcinoma

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FDA approved PD‑L1 IHC 28‑8 pharmDx assay as a companion diagnostic to identify patients with esophageal squamous cell carcinoma, gastric, gastroesophageal junction, and esophageal adenocarcinoma who may be eligible for treatment with Opdivo (nivolumab) or Opdivo Qvantig (nivolumab and hyaluronidase‑nvhy), Bristol Myers Squibb’s PD‑1‑targeted immunotherapeutic agents. PD-L1 IHC 28-8 pharmDx is approved for exclusive use with the Agilent Autostainer Link 48 advanced staining solution. 

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