Valneva Submits Adolescent Label Extension Application for its Chikungunya Vaccine, IXCHIQ®, to UK MHRA

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VALNEVA
VALNEVA

Saint Herblain (France), March 31, 2025Valneva SE (Nasdaq: VALN; Euronext Paris: VLA), a specialty vaccine company, today announced that it has submitted a label extension application to the Medicines and Healthcare products Regulatory Agency (MHRA) of the United Kingdom (UK) to potentially expand the use of its chikungunya vaccine, IXCHIQ®, currently approved in adults1, to adolescents aged 12 to 17 years in the UK. This submission follows the recent positive opinion of the European Medicines Agency (EMA) on extension of IXCHIQ® label to adolescents in the European Union (EU)2.

IXCHIQ® is the world’s first licensed chikungunya vaccine available to address this significant unmet medical need. It is approved in the U.S.3, Europe4, Canada5 and the UK for the prevention of disease caused by the chikungunya virus in individuals 18 years of age and older.

Chikungunya has become an increasingly pressing public health issue, with outbreaks currently ongoing in India, Brazil and the French Island of La Réunion. Valneva announced last week that it has responded to the French government’s call for supply of IXCHIQ® in La Réunion and that it will provide 40,000 doses to the Island’s wholesalers, with an option to provide more6.

Juan Carlos Jaramillo, M.D., Chief Medical Officer of Valneva, commented, “Given the substantial risk that chikungunya presents to people residing in or traveling to endemic regions, it's imperative to ensure the vaccine is available to all age groups. Broader accessibility would certainly help provide protection and mitigate the burden of this debilitating illness, which is currently spreading in areas that were previously unaffected. The long-term durability of the immune response is also extremely important, especially for endemic countries where access to immunization can be difficult."

Valneva is focused on expanding the vaccine’s label and access. Label extension applications to adolescent were submitted in Europe, the United-States, Canada and the UK based on positive six-month adolescent Phase 3 data which showed that a single-dose vaccination with IXCHIQ® induces a high and sustained immune response in 99.1% of adolescents, and that the vaccine was generally well tolerated7. Valneva reported further positive Phase 3 data in adolescents earlier this year, which showed a sustained 98.3% sero-response rate one-year after single vaccination with IXCHIQ®8. The Lancet Infectious Diseases, a world leading infectious diseases journal, also published an article showing that the vaccine was well tolerated in adolescents aged 12 to 17 years 28 days after a single injection, regardless of previous chikungunya virus (CHIKV) infection.