Roche receives FDA approval for first companion diagnostic to identify patients with biliary tract cancer eligible for HER2-targeted treatment with ZIIHERA

The PATHWAY HER2 (4B5) test helps to identify patients with previously-treated, unresectable or metastatic HER2-positive biliary tract cancer (BTC) who may be eligible for treatment with ZIIHERA. There are currently very few options for BTC patients as most cases are at an advanced stage…