Mesothelioma News European Commission Grants Orphan Drug Status to Eisai’s… By Mesothelioma News January 22, 2014 January 22, 2014 Mesothelioma News The investigational monoclonal antibody amatuximab , has today been granted orphan drug designation for the treatment of malignant mesothelioma by the European Commission. European Commission Grants Orphan Drug Status to Eisai’s… Making lives easier, helping firms to thrive – that’s what making law should be all about