BLUE BELL, Pa., Dec. 10, 2012 /PRNewswire/ -- Inovio Pharmaceuticals, Inc. (NYSE MKT: INO) reported interim results of a phase I trial that showed that a single dose of its H1N1 universal SynCon® flu vaccine followed with a dose of a seasonal flu vaccine generated protective immune responses in 40% of trial subjects compared with a 20% response rate in elderly patients who received the seasonal flu vaccine alone. This interim data is a significant step in developing a more effective flu vaccine for the most vulnerable segment of our population.
People over 65 years of age represent about 90% of annual influenza deaths in the US. Older people's immune systems typically mount much weaker protective immune responses to seasonal vaccines, often in only 10 to 20% of this population. In younger adults, the same flu vaccines generate protective immune responses in at least 65% of the vaccine recipients. Other approaches, such as the use of higher vaccine doses and novel adjuvants, have not significantly improved the seasonal vaccine's impact in the older population. Thus, there is a significant need for a new approach to provide better protection in this more vulnerable population.
With the vulnerability of the elderly in mind, this phase I study is evaluating the ability of Inovio's SynCon® vaccine alone, as well as in combination with the 2012 seasonal influenza vaccine, to generate protective levels of antigen-specific antibody immune responses in a greater proportion of the elderly population as well as to assess the potential for more universal protection against both matched and unmatched seasonal influenza strains.
In the trial, 50 healthy elderly patients have been divided into three groups: one group of 20 subjects received a two-dose regimen of Inovio's H1N1 universal SynCon® flu v
|SOURCE Inovio Pharmaceuticals, Inc.|
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