DUBLIN – The EMA has rejected Biogen Inc.’s application for European Union approval of Aduhelm (aducanumab), its controversial Alzheimer’s disease drug. Its human medicines committee (CHMP) issued a negative opinion on Biogen’s dossier during its December meeting this week, stating that the data from the key studies submitted in support of the application “were conflicting and did not show overall that Aduhelm was effective at treating adults with early stage Alzheimer’s disease.”