INCHEON, KOREA -- Samsung Bioepis Co., Ltd. announced the launch of Ustekinumab BS 45 mg Syringe for S.C. Injection ‘NIPRO’, a biosimilar referencing Stelara[1] (ustekinumab), marking its first product launch in Japan under partnership with NIPRO CORPORATION (hereafter “NIPRO”). The launch follows the Official Gazette announcement on May 19 regarding the product’s listing under the National Health Insurance (NHI) Drug Price Standard, which became effective today.

“We are thrilled to announce the launch of our first biosimilar product in Japan in partnership with NIPRO,” said Jinhan Chung, Vice President and Head of Commercial Strategy for International Markets, at Samsung Bioepis. “Together with our partner NIPRO, we look forward to supporting patients living with autoimmune diseases and contributing to the sustainability of Japan’s healthcare system by providing quality-assured, safe and effective biosimilar options.”

Ustekinumab is a human immunoglobulin G1 kappa (IgG1κ) monoclonal antibody that prevents abnormal regulation of IL-12 and IL-23 associated with immune-mediated diseases. Japan’s Pharmaceuticals and Medical Devices Agency (PMDA) has granted marketing authorization to Ustekinumab BS 45 mg Syringe for S.C. Injection‘NIPRO’ for the treatment of plaque psoriasis and psoriatic arthritis in December 2025.[2]

Samsung Bioepis announced a strategic partnership with NIPRO for the development and commercialization of multiple biosimilar candidates in Japan, including ustekinumab, in June 2025.