Core Viewpoints - AbbVie (ABBV) shares declined after the company announced a 3.5billionimpairmentchargeduetothefailureofitsexperimentalschizophreniadrug,emraclidine[1][3]−TheimpairmentchargeisrelatedtotheacquisitionofCerevelTherapeuticsHoldings,fromwhichAbbVieobtainedemraclidine[1][3]−ThePhase2trialofemraclidinedidnotmeetprimaryendpoints,leadingtoasignificantdecreaseinestimatedfuturecashflowsfortheproduct[1][2][3]FinancialImpact−AbbVie′ssharesfell13.5 billion impairment charge reflects the financial impact of the drug's failure on the company's balance sheet [1][3] Drug Development Update - Emraclidine, an experimental medicine for treating schizophrenia in adults, failed to meet primary endpoints in its Phase 2 trial [1][3] - Following the trial results, AbbVie evaluated the impact, concluding a significant reduction in future cash flows for the product [2][3]