Urinary Tract Infection Research Today is a free monthly online journal that collates and summarizes the latest research about Urinary Tract Infection, including details on uti, causes, prevention, diet, treatment. | ||||||||
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A long-term, multicenter, double-blind study of an Escherichia coli extract (OM-89) in female patients with recurrent urinary tract infections.Bauer HW, Alloussi S, Egger G, Blümlein HM, Cozma G, Schulman CC, Maximilianstrasse 31, D-80539 Munich, Germany. OBJECTIVE: To investigate the long-term preventive effect of the immunotherapeutic OM-89 versus placebo in uncomplicated recurrent UTI in a large cohort of female patients only. METHODS: Adult female patients could enroll in this multicenter, double-blind study if they had acute UTI at the enrollment visit and positive results of urinalysis (> or =10(3)bacteria/ml). Patients received the immunotherapeutic OM-89 or a matching placebo; 1 capsule per day for 90 days, 3 months without treatment, then the first 10 days in Months 7, 8 and 9 and were followed up during 12 months. Primary efficacy criteria were UTI rates over 12 months, distribution of UTIs and proportion of patients with UTI. RESULTS: A total of 453 patients were treated, 231 in the active group and 222 in the placebo group. Mean rate of post-baseline UTIs was significantly lower in the active group than in the placebo group (0.84 vs. 1.28; p<0.003), corresponding to a 34% reduction of UTIs in patients treated with OM-89. In the active group, 93 patients (40.3%) had 185 post-baseline UTIs, compared to 276 UTIs in 122 patients (55.0%) in the placebo group (p=0.001). The safety profile of OM-89 was good and consistent with that reported in previous studies. CONCLUSIONS: OM-89 significantly reduced the incidence of UTI during the 12 months of the study including 3 months of treatment and three 10-day booster courses. These results confirm that OM-89 is a valuable component of the management of recurrent UTI. Published 18 March 2005 in Eur Urol, 47(4): 542-8; discussion 548.
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