On 27 March 2026, Celltrion announced that Japan’s Ministry of Health, Labour and Welfare has approved two of its biosimilars: Omlyclo®, biosimilar to Genentech/Novartis’ Xolair® (omalizumab), and Eydenzelt®, biosimilar to Regeneron/Bayer’s Eylea® (aflibercept), 2mg.
According to Celltrion, Omlyclo® is the first omalizumab biosimilar approved in Japan with the full range of on‑label indications, namely bronchial asthma, idiopathic chronic urticaria, and seasonal allergic rhinitis. The product will be offered in both prefilled syringe (PFS) and autoinjector (AI) presentation.
Omlyclo® was the first omalizumab biosimilar approved in: the EU (May 2024); Korea (June 2024, as PFS, with autoinjector approved December 2025); Australia (November 2024); Canada (December 2024, with a high dose formulation approved January 2026); the US (March 2025, in 75 mg/0.5ml and 150mg/ml PFS forms, with full interchangeable status); and New Zealand (April 2025). Celltrion commenced its European rollout of Omlyclo® with the launch of the product in Norway in September 2025, and completed its launch in major European countries including Germany, Spain, the UK and France in November 2025. In late November 2025, Celltrion announced that it launched Omlyclo® in Brazil, Latin America’s largest pharmaceutical market. Aurobindo, Teva, Glenmark and Kashiv reportedly also have omalizumab biosimilars under development
A number of aflibercept biosimilars are approved in Japan including Alvotech/Fuji Pharma’s AVT06 (September 2025) and Sam Chun Dang’s SCD411 (September 2025). Under a settlement and licence agreement with Regeneron & Bayer announced in January 2026, Alvotech was permitted to launch AVT06 in Japan from 1 January 2026.