August 11, 2025- Thermo Fisher Scientific has received approval from the U.S. Food and Drug Administration (FDA) for its Oncomine Dx Target Test as a companion diagnostic (CDx) to identify patients who may be candidates for HERNEXEOS® (zongertinib tablets), a tyrosine kinase inhibitor (TKI), developed by Boehringer Ingelheim. The test allows clinicians and pathologists to assess if non-small cell lung cancer (NSCLC) tumors harbor human epidermal growth factor receptor 2 (HER2/ERBB2) tyrosine kinase domain (TKD) activating mutations.
Lung cancer is the second most common cancer in both men and women in the United States, with NSCLC accounting for about 85–90% of all lung cancer cases. Among those diagnosed with NSCLC, approximately 2 to 4 percent of patients present with a HER2 mutation. The FDA approved HERNEXEOS on August 8, 2025 as the first and only orally administered targeted therapy for adult patients with unresectable or metastatic non-squamous non-small cell lung cancer (NSCLC) whose tumors have HER2 (ERBB2) tyrosine kinase domain activating mutations, as detected by an FDA-approved test, and who have received prior systemic therapy.