Irritable Bowel Syndrome With Diarrhea Clinical Trial
Official title:
The Role of Intestinal Permeability and Intestinal Microbiota in the Development of the Irritable Bowel Syndrome and Functional Dyspepsia Symptoms
Patients with diarrhea-predominant irritable bowel syndrome (IBS) and functional dyspepsia (FD) were examined and received treatment in the study. Severity of complaints and quality of life patients were assessed according to questionnaires. The state of the intestinal barrier (analysis of the protein composition, intestinal mucin levels in biopsies, serum zonulin level in blood), the composition of the gut microbiota (16S rRNA gene sequencing), bacterial metabolic function (short-chain fatty acid levels in feces), and the presence of gut inflammation (levels of lymphocytes and eosinophils in biopsies) were assessed in the patients. Patients were divided into 3 treatment groups: trimebutin + placebo, rebamipide + placebo, trimebutin + rebamipide. The above parameters were compared in patients before and after treatment.
The study included 60 patients with an established diagnosis IBS and FD. Patients were randomized in toone of three groups. Patients in group 1 received Trimedat (trimebutine, marketing authorization number LP-005534/07 of 2007-12-28) for 2 months, patients in group 2 received Trimedat and Rebagit (rebamipide, marketing authorization number LP-001831 of 2012-09-12) for 2 months, patients in group 3 received Rebagit for 2 months. The patients were blinded to the treatment assignment. At inclusion and 1 month after the severity of complaints were assessed, 2 months after starting treatment, the severity of complaints, quality of life, state of tight junction proteins, mucin-2 expression level, serum zonulin level, histological investigation of the mucous membrane of the small and large intestine, state of the intestinal microbiota and short-chain fatty acid levels were assessed. After the end of the study, an interim analysis of the effect of the therapy on the parameters was carried out. In the case of a positive effect, a full analysis of all the aforementioned factors contributing to its development was to be performed. In addition, all these parameters were also in the control group (15 healthy volunteers without complaints, matched for sex and age with the main group). ;
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