An antibiotic gel based on azithromycin helps to prevent the onset of Lyme borreliosis following a tick bite, finds new research.
In addition to the Medical University of Vienna, Austrian partners involved in the Phase II/III study, which now only has to be followed by a verification study in order to be potentially put into clinical use, were the Medical University of Graz (Department of Dermatology), the Medical University of Innsbruck (Department of Dermatology and Venerology), the Elisabethinen Hospital in Linz and the Center for Travel Medicine in St. Pölten. Other study partners come from Germany (Berlin, Würzburg) and Switzerland (Zürich). The antibiotic gel was developed by the Swiss company Ixodes AG.
A total of 1,000 patients with fresh tick bites were treated with the antibiotic gel within 72 hours of being bitten. Says Jilma: “None of the test subjects went on to develop Lyme borreliosis.” Conversely, in the control group that received a placebo, there were seven cases of borreliosis.
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The advantage of the gel is that it has no side-effects and, according to the promising results, can therefore also be used for children. Moreover, treatment is very simple: the gel has to be applied every 12 hours over a period of three days. “This kills off the borrelia,” explains Jilma.
In Austria, there are around 24,000 cases of Lyme disease every year, while in Western Europe the annual figure is more than 200,000 new cases of the world’s most common tick-borne infectious disease. If the infection goes untreated, it can attack a person’s joints, heart and nervous system and lead to serious complications. Up to 5% of all tick bites result in Lyme disease: around 20% of ticks are infected.
