FDA delays review of Bayer’s elinzanetant NDA

26 July 2025

The US Food and Drug Administration (FDA) has notified Bayer (BAYN: DE) that it has extended the review period for the New Drug Application (NDA) for elinzanetant, the first neurokinin 1 and neurokinin 3 receptor antagonist for the treatment of moderate to severe vasomotor symptoms (VMS; also known as hot flashes) due to menopause.

The German pharma major noted that the FDA has determined additional time is needed for a full review of the NDA submission, including information provided to support the application. The extension to the Prescription Drug User Fee Act (PDUFA) review period is up to 90 days. The FDA did not raise any concern regarding the general approvability of elinzanetant in its correspondence.

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