The project
Influenza epidemics remain a
burden to both human health and national economies, as
witnessed by the recent advance of pathogenic avian H5N1
influenza virus. While the numbers of human deaths in
Europe have remained relatively low, the presence of such
cases in Turkey demonstrates the danger posed by this
virus. Now that H5N1 virus has been detected in wild birds
in Europe, the PANFLUVAC consortium is committed to
creating an efficacious vaccine against this virus, to
provide strong protection in a pandemic situation.
The overall aim of PANFLUVAC is to construct vaccine
delivery systems for intranasal and parenteral vaccines.
New H5N1 vaccines are based on a current subunit vaccine
construction – for immediate evaluation – as well as
well-established virosome technology for future development
within the project. Pre-clinical evaluation will also
permit comparison of the new intranasal vaccines with whole
virus vaccine. The vaccine potency will be enhanced by
novel adjuvants – ISCOM, glycolipids and lipopeptide
adjuvants biosafe for humans - known to promote the
dendritic cell activity critical for efficient induction of
immune defences. This approach offers both antigen sparing
potential and immunopotentiation characteristics. biosafe
for humans. With the ISCOM having been employed with
experimental influenza vaccines, this will allow the new
H5N1 vaccines to be fast-tracked in their development.
Accordingly, PANFLUVAC will generate its first H5N1 vaccine
for intranasal evaluation within the first 18 months of the
project.
The PANFLUVAC project is also designed to facilitate rapid
modification of the vaccine in the face of virus drift.
Within the preclinical evaluation, the new vaccines will be
tested for the degree of heterotypic cross protection they
offer. PANFLUVAC offers a generic vaccine development
system to provide safe and efficacious vaccines against
influenza, fitting with the “Community Influenza Pandemic
Preparedness and Response Planning".