Iomai Patch-Based Vaccine Cut Rate of Travelers' Diarrhea by 75 Percent in Phase 2 F...(y be near aturning point in the preventi...),Health

Date:9/18/2007

y be near a turning point in the prevention of this common, often-serious disease," said Herbert L. DuPont, M.D., professor and director of the Center for Infectious Diseases at The University of Texas School of Public Health and the principal investigator on the trial. "If Phase 3 trials for the vaccine validate these results, those of us in travel medicine will have an excellent new weapon in our arsenal."

The research was conducted in collaboration with researchers from the Johns Hopkins Bloomberg School of Public Health and the University of Texas School of Public Health.

Iomai plans to begin a Phase 3 program for the needle-free vaccine patch vaccine in 2008.

"We are moving this product ahead as quickly as possible," said Chief Executive Officer Stanley C. Erck. "This is a pressing, unmet medical need. Travelers' diarrhea is the most common travel ailment in the world, yet there are no effective vaccines available for the condition. A recently completed market study suggests that there is a $750 million market for effective protection against travelers' diarrhea, an opportunity that we are well-positioned to target."

About the Phase 2 Trek Study

The Trek Study followed 170 travelers to Mexico and Guatemala. Each volunteer received either two doses of the Iomai vaccine patch or a placebo, 2 to 3 weeks apart, with the last dose administered a week before travel. Travelers kept detailed diaries and received in-country checkups. The study met its primary endpoints, which were designed to evaluate the safety of the vaccine and the incidence of enterotoxigenic E. coli (ETEC) bacteria -- the most common cause of travelers' diarrhea. No vaccine-related serious adverse events were reported.

Of the few vaccinated patients who were sickened, the diarrhea lasted only half a day on average, while those in the placebo group endured two days of illness and more than twice as many loose stools. Although not statistically significant, the fre
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SOURCE Iomai Corporation Copyright©2007 PR Newswire. All rights reserved

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