Worrisome new signals caused the U.S. FDA – which earlier this month OK’d revised labeling for Valneva SE’s chikungunya virus vaccine Ixchiq – to suspend the product’s license altogether. Regulators pointed to four added reports of serious adverse events consistent with chikungunya-like illness, and told Valneva, of Saint Herblain, France, that the company must stop U.S. shipping and sales of the product. Shares (NASDAQ:VALN) closed Aug. 25 at $9.43, down $2.21, or 19%.
Danish vaccines manufacturer Bavarian Nordic A/S is to be taken private in a DKK233 per-share deal valuing the company at DKK19 billion (US$2.97 billion). The deal needs the support of 90% of Bavarian Nordic shareholders to go through, and as things stand may not reach that target because it does not have the support of the largest shareholder, the Danish pension fund ATP, which owns 10.17%.
Infectious disease stocks stumbled in the early months of 2025, with the BioWorld Infectious Disease Index (BIDI) plunging 17.83% by the end of April, well behind the broader markets. By comparison, the Nasdaq Biotechnology Index slipped just 1.16%, and the Dow Jones Industrial Average declined 4.41%. In 2024, the BIDI ended the year down 6.28%, after hitting a low of -25.12% in late April.
With the U.S. FDA’s approval of Vimkunya, Bavarian Nordic A/S is now in the chikungunya virus infection mix along with Valneva SE’s Ixchiq. A single-dose, adjuvanted virus-like particle-based vaccine to protect against the chikungunya virus infection, Vimkunya is the first of its kind available in the U.S. for those age 12 and older.
Oregon Health and Science University (OHSU) and the Southern Research Institute have patented compounds reported to be useful for the treatment of alphaviral infections.
The EMA has been sent back to the drawing board to re-evaluate PTC Therapeutics Inc.’s Duchenne muscular dystrophy therapy Translarna (ataluren), after failing to get the usual rubber stamp following its recommendation in January that the drug’s conditional approval be withdrawn.
Emergex Vaccines Holding Ltd. has signed a contract with the U.K. Department of Health and Social Care (DHSC) for almost £1.8 million (US$2.2 million) to advance a CD8 T cell-based vaccine candidate against Chikungunya virus (CHIKV).
With Valneva SE’s accelerated approval from the U.S. FDA for chikungunya vaccine Ixchiq, attention turned to the February 2024 meeting of the Advisory Committee on Immunization Practices (ACIP), which will vote on the product. A single-dose, live-attenuated vaccine, Ixchiq is designed to prevent disease caused by the virus in people 18 and older who are at increased risk of exposure to the bug.
About two weeks after chikungunya virus (CHIKV) vaccine contender Bavarian Nordic A/S provided phase III data with its prospect, rival Valneva SE rolled out positive phase III safety findings in adolescents with its single-dose candidate VLA-1553. Results from the Saint-Herblain, France-based company’s first trial in an endemic area with people previously infected with CHIKV showed the product was generally safe and well-tolerated in subjects aged 12-17 years, regardless of previous infection by the mosquito-borne disease, carried mainly by Aedes aegypti and Aedes albopictus. Immunogenicity data from the study are expected in November.
