NCT04997057

Brief Summary

Probiotics efficacy is mainly assessed by subjective endpoints such as the FDA responder rate or global relief, which partly explain contradictory results obtained in clinical trials with probiotic bacteria. Objective biomarkers of IBS will allow to measure the efficacy of probiotics. In the case of IBS-C, serum resolvin-D1 appears to be an interesting candidate due to its non-invasive and discriminating character compared to a healthy population. It is, inversely correlated with the severity of symptoms. Resolvin-D1 modulates the duration and intensity of inflammation by regulating the transcription of cytokines, chemokines and their receptors as well as other proteins involved in inflammation. Resolvin D1 could serve as a predictor of probiotic response based on its baseline value.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2022

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 19, 2021

Completed
21 days until next milestone

First Posted

Study publicly available on registry

August 9, 2021

Completed
5 months until next milestone

Study Start

First participant enrolled

January 4, 2022

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 9, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 9, 2022

Completed
Last Updated

December 26, 2023

Status Verified

March 1, 2023

Enrollment Period

11 months

First QC Date

July 19, 2021

Last Update Submit

December 20, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change of the severity of IBS-C symptoms

    Measured by the composite IBS-SSS (Irritable Bowel Syndrome-Severity Scale Scoring) system, compared to the baseline IBS-SSS value. Minimum : 0 (best condition) to maximum (worse condition): 500

    At weeks 0, 4, 8 and 12

Secondary Outcomes (20)

  • Change of the severity of addominal pain

    At weeks 4, 8 and 12

  • Change of the number of days with abdominal pain

    At weeks 4, 8 and 12

  • Change of the severity of abdominal distension (bloating)

    At weeks 4, 8 and 12

  • Change of the satisfaction with bowel habits

    At weeks 4, 8 and 12

  • Change of the IBS-related quality of life

    At weeks 4, 8 and 12

  • +15 more secondary outcomes

Study Arms (1)

Probiotics mixture

OTHER

Daily supplementation with a mixture of probiotics for 12 weeks

Dietary Supplement: Probiotics mixture

Interventions

Probiotics mixtureDIETARY_SUPPLEMENT

12 weeks of daily supplementation with 1 g of probiotics mixture (4.10exp9 colony forming unit/g) containing: * Bifidobacterium longum LA 101 * Lactobacillus helveticus La 102 * Lactococcus lactis LA 103 * Streptococcus thermophilus LA 104

Probiotics mixture

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Irritable Bowel Syndrome with constipation (IBS-C) according to Rome IV criteria ;
  • IBS-SSS between 175-300 in the last 10 days ;
  • Have experienced abdominal pain ≥ 40 according to the IBS-SSS questionnaire (abdominal pain item) during the last 10 days ;
  • Whose abdominal pain / discomfort has had a significant impact on daily life during the past 10 days (impact ≥2 on a 5-point likert scale (from 0: no impact to 5: extreme impact) ;
  • Ability to understand instructions and complete questionnaires Nurstrial APP.
  • Affiliate or beneficiary of a social security ;
  • Having given their free, informed and written consent.

You may not qualify if:

  • CPRu \> 10 mg/l
  • Pregnant or breastfeeding woman, woman planning a pregnancy during the study period ;
  • Intolerance or proven food allergy ;
  • BMI \<18.5 kg / m2 or BMI\> 35 kg / m2 ;
  • Diagnosis or known history of IBS-D, IBS-M, or unclassified forms of IBS, or other gastrointestinal pathologies ;
  • With current first-line IBS-C treatment or second-line treatment ;
  • alternative non pharmacological treatment ;
  • Drug treatment affecting visceral sensitivity or intestinal transit ;
  • Excessive smoking or drinking ;
  • Having or planning bariatric surgery,
  • With known pathologies affecting gut function ;
  • With a deviant eating behavior,
  • Under legal protection,
  • Already included in a clinical trial,
  • With severely impaired physical/psychological health may affect study participation.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

CEN Nutriment

Dijon, Bourgogne-Franche-Comté, 21000, France

Location

Study Officials

  • GABRIEL PERLEMUTER, PR

    Hospital Antoine-Béclère

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Quasi-experimental study: post-treatment versus baseline comparison
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 19, 2021

First Posted

August 9, 2021

Study Start

January 4, 2022

Primary Completion

December 9, 2022

Study Completion

December 9, 2022

Last Updated

December 26, 2023

Record last verified: 2023-03

Data Sharing

IPD Sharing
Will not share

Locations