FDA Approves Roche's PATHWAY HER2 Test as Companion Diagnostic for Biliary Tract Cancer
• The FDA has approved Roche's PATHWAY HER2 (4B5) test as a companion diagnostic for identifying biliary tract cancer (BTC) patients eligible for ZIIHERA (zanidatamab-hrii) treatment.
• This marks the first FDA-approved companion diagnostic for HER2-positive BTC, addressing a critical unmet need in selecting patients for targeted therapy.
• The PATHWAY HER2 test expands its clinical utility, building upon its existing use in breast cancer to now include identifying HER2-positive BTC patients.
• ZIIHERA is the first FDA-approved treatment for adults with previously-treated, unresectable or metastatic HER2-positive biliary tract cancer.