Dietary Fibers Effect on the Gut Microbiota Composition

Status Withdrawn

Clinical Trial Summary

The randomized double-blinded placebo-controlled multicenter study will be held in parallel groups. During 5 weeks the efficacy of different endpoints as a measure of response to the daily intake of dietary fibers (8 g of either inulin, pectin, beta-glucan or galactooligosaccharides) will be evaluated. Gut microbiota composition, lipids levels, inflammation markers, microbiome metabolites, changes in quality of life and stool parameters will be assessed in order to predict individual response in participants without serious chronic diseases

Clinical Trial Description

A randomized double-blinded study will include 270 volunteers without clinical manifestations of chronic diseases. Participants will be randomized into one of five arms daily consuming one of the following: placebo (maltodextrin, 8 g), inulin (8 g), pectin (8 g), beta-glucan (8 g) or oligosaccharides (8 g). The study will include a 5-day screening period and a 5-weeks intervention period. During screening stage, a volunteer will complete a questionnaire, and the following measurements will be performed: blood levels of glycated hemoglobin, creatinine, lipids, C-reactive protein, anthropometric measurements, as well as cardiovascular risk will be assessed. Before and after the intervention blood and stool samples will be collected to conduct the following analyses: an extended lipid spectrum analysis, high-sensitivity C-reactive protein, 16S rRNA gut microbiome sequencing, laboratory stool testing, stool fecal short-chain fatty acids analysis. Anthropometric measures, physical examination will be performed for each volunteer. The following questionnaires will be completed: dietary recall questionnaire, SF-36, the Rome Criteria for the Functional gastrointestinal disorders (functional constipation). The assessed scales will include Bristol stool scale, Hospital Anxiety and Depression Scale (HADS), Hamilton Rating Scale for Depression (HRSD). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04114513
Study type	Interventional
Source	Atlas Biomed
Contact
Status	Withdrawn
Phase	N/A
Start date	November 25, 2019
Completion date	September 30, 2020

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.