Efficacy and Safety of Oral Administration of Postibiotic by FOS Fermentation From Lactobacillus Paracasei in the Treatment of Irritable Bowel Syndrome. (prePO23)

May 28, 2024 updated by: Istituto Clinico Humanitas

A Randomized, Cross-over, Placebo-Controlled, Double-Blind Clinical Trial on the Efficacy and Safety of Oral Administration of Postibiotic by FOS Fermentation From Lactobacillus Paracasei in the Treatment of Irritable Bowel Syndrome.

Irritable bowel syndrome (IBS) is a highly prevalent functional pathology which currently has no real standardized and effective therapy, despite having a significant impact on quality of life and on social-health costs.

Post-biotics have demonstrated in various in vitro and in vivo studies the ability to modulate the microbiota, the intestinal barrier function, the immune response as well as having systemic effects, with prospects for good efficacy in treatment of IBS.

Study Overview

Detailed Description

PostbiotiX Slowing is a food supplement based on Fermented FOS from Lactobacillus paracasei CNCM I-5220, mallow and chamomile.

The Fermented FOS from Lactobacillus paracasei CNCM I-5220 (postbiotic) is the result of a controlled fermentation. The fermentation process allows to eliminate all the individual variability that depends on the microbiota, the diet and the psycho-physical conditions of the single individual, offering a mixture of bacterial metabolites and fermented fiber (postbiotic), which has the functional activity. In addition, as FOS is already fermented it does not induce the formation of gas typical of fiber fermentation in IBS patients, thus providing all the beneficial effects of the fiber without its side effects.

The fermented FOS from Lactobacillus paracasei CNCM I-5220 (postbiotic) is easily absorbed by the gut.

Dosage and method of use: PostbiotiX Slowing 4 g sachets, administered at the dosage of one sachet a day. To pour the contents of the sachet in a glass, add 150 ml of water, mix until complete dissolution of the powder and taken immediately, preferably as soon as awakened, and away from meals.

Ingredients: Maltodextrin, Aroma, Fermented FOS from Lactobacillus paracasei CNCM I-5220, mallow (Malva sylvestris L.) flowers and leaves d.e. tit. 20% polysaccharides, chamomile (Matricaria chamomilla L.) flowers d.e. tit. 0.3% apigenin, acidity regulator: citric acid; anti-caking agent: silicon dioxide; sweetener: sucralose.

Conservation method: to be kept in a cool and dry place, away from light, humidity, and direct sources of heat.

Study Type

Interventional

Enrollment (Estimated)

36

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • Milano
      • Rozzano, Milano, Italy, 20089
        • Department of Gastroenterology, Humanitas Research Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • 18-75 years
  • IBS diagnosis according to ROME IV criteria
  • Mild-moderate disease defined by IBS-SSS questionnaire at the baseline visit and after the washout period
  • Signed Informed Consent
  • Patients' ability to comply with the study procedures
  • Stable diet within two months prior to the screening visit
  • Negative colonoscopy (only > 50 years old patients)

Exclusion Criteria:

  • Therapy with drugs or supplements included in the prohibited list
  • Malignancy or history of malignancy, except patients with a history of surgically removed extraintestinal malignancy and a 5-year disease-free interval
  • Unstable psychiatric pathology
  • Organic bowel disease
  • Major abdominal surgery, except appendectomy and cholecystectomy
  • Relevant organic, systemic, metabolic pathologies or significant laboratory test abnormalities
  • Pregnant or nursing women
  • Patients with known hypersensitivity to one or more components of the product

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: Randomized
  • Interventional Model: Sequential Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: PostbiotiX Slowing (Treatment A) Sequence AB
Each patient will be supplied with the investigational product at Visit 0 (V0, Kit V0, PostibiotiX Slowing) and at visit 3 (V3, Kit V3, Placebo), based on the outcome of the randomization at V0 (Sequence AB, PostbiotiX Slowing/Placebo).
Each patient will be supplied with the investigational product at Visit 0, PostibiotiX Slowing and at visit 3, based on the outcome of the randomization at V0 (Sequence AB, PostbiotiX Slowing/Placebo; Sequence BA, Placebo/PostbiotiX Slowing).
Experimental: Placebo (Tratment B) Sequence BA
Each patient will be supplied with the investigational product at Visit 0 (V0, Kit V0, Placebo) and at visit 3 (V3, Kit V3, PostibiotiX Slowing), based on the outcome of the randomization at V0 (Sequence BA, Placebo/PostbiotiX Slowing).
Each patient will be supplied with the investigational product at Visit 0, PostibiotiX Slowing and at visit 3, based on the outcome of the randomization at V0 (Sequence AB, PostbiotiX Slowing/Placebo; Sequence BA, Placebo/PostbiotiX Slowing).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Reduction in symptom intensity
Time Frame: 10 weeks
Evaluated using a symptom measurement scale, at each visit, on a 4-point Likert scale (IBS symptom scale; 4 symptoms for a minimum sum score of 0, maximum 12).
10 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from baseline in IBS-SSS (symptom severity score)
Time Frame: up to 4 weeks
IBS-SSS is a five-item questionnaire measuring frequency and intensity of abdominal pain, the severity of abdominal distension, dissatisfaction with bowel habits, and the interference of IBS with daily life, scoring from 0 to 500.
up to 4 weeks
Adequate overall symptom relief after treatment,
Time Frame: up to 10 days
To assess adequate overall relief, patients will be asked weekly to answer the question "Compared to how you usually felt before taking the treatment, how would you rate your symptom relief (abdominal pain, bowel habits, and other symptoms of IBS) in the past 10 days?" Possible answers: 1, very relieved; 2, relieved; 3, somewhat relieved; 4, unchanged; 5, slightly worsened; 6, worsened; 7, much worsened.
up to 10 days
Change from baseline after treatment in NRS:
Time Frame: up to 10 days
Severity score of each of the individual symptoms included in the IBS-SSS (VAS sub-scores), assessed by numeric rating scale (NRS) from 0 to 100
up to 10 days
Change from baseline after treatment in QqL:
Time Frame: up to 10 days

Quality of life as assessed by IBS-QoL:

The individual responses to the 34 items are summed and averaged for a total score and then transformed to a 0-100 scale for ease of interpretation with higher scores indicating better IBS specific quality of life

up to 10 days
Change from baseline after treatment in HADS:
Time Frame: up to 10 days

Hospital anxiety and depression scale (HADS):

HADS is a fourteen-item scale with seven items each for anxiety and depression subscales. Scoring for each item ranges from zero to three. A subscale score >8 denotes anxiety or depression.

up to 10 days
Fecal metagenomics:
Time Frame: up to 10 days
Additional functional parameters in stool analysis differences before and after treatment (for example: digestive residues, bile acids, proteic composition)
up to 10 days
Analyses of metabolomic:
Time Frame: up to 10 days
Differences before and after treatment in the Sieric/plasma molecules such as for example Zonulin, soluble CD14, plasmatic inflammatory cytokines, bacterial DNA in the blood, and PBMCs analysis
up to 10 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

June 15, 2024

Primary Completion (Estimated)

May 15, 2025

Study Completion (Estimated)

May 15, 2026

Study Registration Dates

First Submitted

April 24, 2024

First Submitted That Met QC Criteria

May 15, 2024

First Posted (Actual)

May 21, 2024

Study Record Updates

Last Update Posted (Actual)

May 29, 2024

Last Update Submitted That Met QC Criteria

May 28, 2024

Last Verified

April 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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