Bayer AG NAFDA granted accelerated approval to Bayer's sevabertinib for first-line HER2-mutant NSCLC, expanding its approved use

Bayer announced that the FDA has granted accelerated approval to sevabertinib for the first-line treatment of adult patients with locally advanced or metastatic non-small cell lung cancer whose tumors have HER2 tyrosine kinase domain-activating mutations. The approval was based on data from the ongoing phase I/II SOHO-01 study, which showed a 75% objective response rate, including complete responses in 6% of patients and partial responses in 70%, with 73% of responders maintaining their response for at least six months. Bayer is running the phase III SOHO-02 confirmatory study of sevabertinib versus standard treatment in previously untreated patients with advanced HER2-mutant NSCLC, and positive data could support converting the accelerated approval into traditional approval in the United States. Sevabertinib, which originated from Bayer's research collaboration with the Broad Institute of MIT and Harvard, received FDA accelerated approval in November 2025 under the brand name Hyrnuo for previously treated patients, and is also approved in China as a monotherapy for adults with unresectable, locally advanced or metastatic HER2-mutant NSCLC after at least one prior systemic therapy and in Japan for HER2-mutant NSCLC regardless of treatment line, including first-line use. In a separate press release, Bayer said it has initiated a global phase II study of BAY 3670549, an investigational highly selective GIRK4 inhibitor, in patients with atrial fibrillation who require electrical cardioversion, following a favorable safety and tolerability profile in the completed phase I first-in-human study.
Bayer AG NAFDA granted accelerated approval to Bayer's sevabertinib for first-line HER2-mutant NSCLC, expanding its approved use
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