Chugai Pharmaceutical Co., Ltd., together with its subsidiaries, engages in the research, development, manufacture, sale, importation, and exportation of pharmaceuticals in Japan and internationally. It offers oncology products, such as Alecensa, Avastin, FoundationOne, Herceptin, Kadcyla, Perjeta, Polivy, Tecentriq, and Phesgo; Actemra for humanized anti-human IL-6 receptor monoclonal antibody; CellCept for immunosuppressant; Edirol, an osteoporosis agent; Enspryng, a pH-dependent binding humanized anti-IL-6 receptor monoclonal antibody; Evrysdi for spinal muscular atrophy agent; Hemlibra, an anti-coagulation factor IXa/X humanized bispecific monoclonal antibody; Mircera, an erythropoiesis-stimulating agent; PiaSky, a pH-dependent binding humanized anti-complement (C5) monoclonal antibody; Ronapreve, an anti-SARS-CoV-2 monoclonal antibody; Tamiflu, an anti-influenza agent; and Vabysmo, an anti VEGF/anti Ang-2 bispecific antibody. The company has strategic alliances and collaboration with Roche Group; and research collaboration and option to license agreement with Araris Biotech AG to develop ADCs using Araris AraLinQ technology. The company was founded in 1925 and is headquartered in Chuo-ku, Japan. Chugai Pharmaceutical Co., Ltd. operates as a subsidiary of Roche Holding Ltd.