On 25 August 2026, Celltrion announced that it has launched Omlyclo® 300 mg, biosimilar to Genentech/Novartis’ Xolair® (omalizumab), in Europe, commencing in Germany, the UK and France.
Omlyclo® was the first (and remains the only) omalizumab biosimilar to be approved in the EU, with Celltrion receiving EU market authorisation for its 75 mg/0.5 mL and 150 mg/1 mL PFS formulations in May 2024, and approval for the 300 mg formulation following in November 2025. Celltrion commenced its European rollout of Omlyclo® (75 mg/0.5 mL and 150 mg/1 mL) in Norway in September 2025, and completed the launch of those formulations in major European countries including Germany, Spain, the UK and France in November 2025.
The 300 mg formulation of Omlyclo® has also been launched in Korea (30 March 2026) and approved in a number of countries including the US (December 2025) and Canada (January 2026).
Omalizumab biosimilars in development include Kashiv BioSciences/Alvotech’s ADL-018/AVT23, with an application for ADL-018 accepted for review by Health Canada in June 2026 and marketing applications for AVT23 accepted by the UK’s MHRA in March 2025 and the European Medicines Agency in October 2025. Under an exclusive licensing agreement with Kashiv entered in October 2023, Alvotech holds the commercialisation rights to ADL-018/AVT23 in Canada, together with the European Economic Area, UK, Switzerland, Australia and New Zealand. Kashiv has entered into agreements for commercialisation of ADL-018 with Cristália for LATAM (August 2025) and MS Pharma for MENA markets (August 2025).
Teva’s biosimilar omalizumab applications have been accepted for review in the US and EU (March 2026) and CuraTeQ announced Phase 3 study results for its biosimilar omalizumab, BP11, in April 2026.
Mabpharm claims to have had an omalizumab biosimilar (Aomaishu®) approved for marketing in China in May 2023.