Biotechnology In November last year, Ireland-incorporated biotech Alkermes submitted a New Drug Application (NDA) for ALKS 3831 (olanzapine/samidorphan) for the treatment of schizophrenia and bipolar I disorder, and today announced that the US Food and Drug Administration has accepted the NDA for review and assigned a Prescription Drug User Fee Act (PDUFA) target action date of November 15, 2020 28 January 2020