New influenza vaccine to EU
The Astrazeneca subsidary Medimmune submits marketing authorisationapplication in EU for an new intranasal vaccine against influenza.
The marketing authorisation application submission for live attenuated influenza vaccine is based on data from 73 global clinical and US post-marketing studies of more than 141 000 subjects ranging in age from seven weeks to 97 years and conducted in 38 countries. Study objectives have included clinical safety and tolerability, clinical efficacy and effectiveness, and immunogenicity.
Each dose of live attenuated influenza vaccine is formulated to contain three live attenuated influenza virus strains, which are weakened as to not cause illness - Two Type A influenza strains and one Type B strain. The vaccine strains are selected annually by the World Health Organization, WHO, based on anticipated circulating influenza strains for the upcoming season. The vaccine is sprayed into the nose, rather than by injection as with other licensed influenza vaccines, where it induces protective immunity.
