Chugai Pharmaceutical Co., Ltd. and Nippon Shinyaku Co., Ltd. announced that Chugai filed a regulatory application with the Ministry of Health, Labour and Welfare (MHLW), for approval of an anti-cancer agent/humanized anti-CD20 monoclonal antibody Gazyva Intravenous Infusion 1000 mg [generic name; obinutuzumab (genetical recombination)] for the treatment of chronic lymphocytic leukaemia (CLL).