Alkermes plc worked its way through a complete response letter (CRL) issued in late 2020 as the FDA has approved Lybalvi (olanzapine and samidorphan) for treating adults with schizophrenia and bipolar I disorder. The once-daily, oral antipsychotic treatment, the company’s first, is for maintenance monotherapy or acute treatment of manic or mixed episodes and as a monotherapy or adjunct to lithium or valproate. The therapy had a June 1 PDUFA date.