Merus’ Bizengri Wins Accelerated Approval

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FDA has granted Merus accelerated approval for Bizengri (zenocutuzumab-zbco) for adults with advanced, unresectable, or metastatic non-small cell lung cancer (NSCLC) and pancreatic adenocarcinoma harboring a neuregulin 1 (NRG1) gene fusion with disease progression on or after prior systemic therapy.

Last month, FDA extended by three months its priority review of the BLA because it needed additional time to review information recently submitted in response to a chemistry, manufacturing and controls information request, the company said at the time, adding that no additional clinical data had been requested.

Approval was based on data from the eNRGy study (NCT02912949) in 64 adults with advanced or metastatic NRG1 fusion-positive NSCLC and 30 adults with advanced or metastatic NRG1 fusion-positive pancreatic adenocarcinoma who had disease progression following standard of care treatment, according to an agency release. The major efficacy outcome measures were confirmed overall response rate (ORR) and duration of response (DOR). For NSCLC, ORR was 33% and median DOR was 7.4 months, and for pancreatic adenocarcinoma, ORR was 40% and the DOR range was 3.7 months to 16.6 months, the agency says.

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