Mobocertinib (TAK-788) is an orally active and irreversible EGFR/HER2 inhibitor. Mobocertinib effectively inhibits oncogenic variants containing mutations that activate the EGFRex20ins, with selectivity superior to that of wild-type EGFR. Mobocertinib is FDA-approved for the treatment of patients with non-small cell lung cancer (NSCLC) who have a HER2 mutation or an EGFR mutation, including an exon 20 insertion mutation. Mobocertinib is approved by the FDA for the treatment of patients with non-small cell lung cancer (NSCLC) who have HER2 mutations or EGFR mutations, including exon 20 insertion mutations.