Novavax Inc. (NVAX) reported new data from a clinical study among healthy adults 18 to 49 years of age with Novavax's trivalent seasonal influenza Virus-like Particle or VLP vaccine.
The vaccine matched the influenza strains recommended for the 2008-2009 influenza season including H1N1 A/Brisbane/59/2007, H3N2 A/Brisbane/10/2007, and B/Florida/04/2006 strains.
The study enrolled 241 subjects, including 221 who were randomized to receive either VLP vaccine at 15 mcg or 60 mcg doses or a placebo and 20 subjects who received a licensed inactivated influenza vaccine.
The results showed that 50% to 73% of the volunteers immunized with the Novavax VLP vaccine had a 4-fold increase in the antibody that blocks neuraminidase activity. In contrast, only 1 of 19 volunteers that received the TIV showed a 4-fold rise for NAI. There was no 4-fold rise in volunteers that received placebo.
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