FDA Approves Roche's PATHWAY HER2 Test as Companion Diagnostic for HER2-Positive Biliary Tract Cancer
• The FDA has approved Roche's PATHWAY HER2 (4B5) test to identify biliary tract cancer (BTC) patients eligible for ZIIHERA, a HER2-targeted therapy.
• This marks the first FDA-approved companion diagnostic for HER2 status assessment in BTC, addressing a critical gap in personalized medicine for this cancer.
• Biliary tract cancer has a poor prognosis due to late diagnosis and limited treatment options, making this approval a significant step forward.
• The PATHWAY HER2 test expands its clinical utility, previously used for breast cancer, to now guide HER2-targeted therapy in BTC patients.