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Constipation - FunctionalNCT05541991

Study on the Effect of Rhubarb Extract on Stool Frequency and Biological Markers of Intestinal Function in Seniors With Low Defecation

A study testing single dose coated tablet Fruits & Fibres Rhubarbe with standardised rhubarb extract and double dose coated tablet Fruits & Fibres Rhubarbe with standardised rhubarb extract in people with Constipation - Functional, run by ortis at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Randomized double-blind clinical study versus placebo evaluating the effect of supplementation with rhubarb extract on stool frequency and biological markers of intestinal function in seniors with a low number of defecations per week Read more about this study

Who is it for?
Ages 50 to 70 yearsHealthy volunteers can take part
Conditions the study is for
Constipation - Functional
What is being tested?
single dose coated tablet Fruits & Fibres Rhubarbe with standardised rhubarb extract and double dose coated tablet Fruits & Fibres Rhubarbe with standardised rhubarb extract
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
45 participants
Where
1 siteFrance
Study dates
10 Feb 2017to 13 Jun 2018
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 to 70 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • presenting a number of stools ≥1 and ≤3 per week during the last month preceding the screening visit and during the last 15 days preceding the inclusion visit;
  • stools often (at least 25% of defecations according to the Rome III questionnaire) hard or lumpy, according to the bristol scale, at least the last 3 months over a period of 6 months;
  • not currently justifying, according to his attending physician, drug treatment;
  • Giving free and informed consent to the study in writing.

Who cannot join

  • Related to the patient:
  • subject with signs requiring further investigations: odynophagia, involuntary weight loss >10% during the last 3 months before inclusion, persistent vomiting, hematemesis, blood in the stools, iron deficiency anemia, symptoms of obstruction, rectal bleeding, rectal prolapse …;
  • subject who has not been screened for colon cancer in the past two years;
  • subject participating in another therapeutic trial;
  • subject with a serious general pathology and in particular renal or hepatic insufficiency, cancer, chronic pancreatitis;
  • premenopausal women;
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  • subject with known hypersensitivity to one of the constituents of the product under study;
  • subject who does not have the legal or ethical capacity to contract due to an impairment of his cognitive functions;
  • subject likely not to be compliant with the constraints imposed by the protocol;
  • subject not benefiting from a health insurance scheme.
  • Related to the disorders assessed:
  • subject having taken in the 30 days preceding the screening visit or currently taking medication, food supplements and any food enriched or presented as containing substances, bacteria or yeasts likely to have an effect on the intestines and more particularly on intestinal transit, digestive comfort, gas production, the occurrence of abdominal pain. These products were also prohibited throughout the duration of the study;
  • subject following a particular diet (vegetarian, vegan, high protein, etc.);
  • subject on a low-calorie diet and monitored by a current or recent doctor or dietitian (< 6 weeks);
  • subject undergoing medical treatment which, according to the investigator, could interfere with the evaluation of the study criteria: antibiotic, corticosteroid, anticholinergic, antidepressant, antiemetic, antihistamine, diuretic, calcium channel blocker, antiparkinsonian, antipsychotic, antacid, analgesic , NSAIDs, H2 receptor antagonist, hypnotic, sedative, iron supplement, opioid and narcotic, laxative, anti-diarrheal, anti-reflux;
  • subject with an alcohol consumption greater than 3 glasses of wine per day, or two pints of beer per day, or one glass of strong alcohol per day;
  • subject with a coffee consumption greater than 5 cups per day;
  • smoker;
  • subject with a BMI greater than 30;
  • subject with constipation attributable to an organic or anatomical cause (Hirschsprung's disease, hypothyroidism, mental deficiency, psychiatric illness, neurological abnormalities, history of colon or anus operation, colorectal cancer, anemia, etc.;
  • subject with a fiber intake higher than the recommended intake (more than 6 fruits and vegetables per day according to the PNNS questionnaire);
  • subject with severe constipation (less than 1 bowel movement per week during the 15 days preceding the inclusion visit);
  • subject with pelvic floor dysfunction;
  • subject with type 1 or 2 diabetes;
  • subject with a history of pathology or current disorder at the gastrointestinal level such as a duodenal ulcer, chronic colitis or a chronic inflammatory disease of the digestive tract (Crohn's disease, ulcerative colitis), celiac disease or the syndrome irritable bowel;
  • subject with a history of digestive tract surgery;
  • subject having undergone surgery in the two months preceding the study;
  • subject having undergone bariatric surgery;
  • subject with the practice of an intense sports activity (more than 10 hours per week of intense activity as defined by the WHO).

Trial locations and contacts

1 site in 1 country.

France1 site
  • CEN nutriment

    Dijon, 21000

Other trials in France

About this study

Official title: Randomized, Double-blind, Placebo-controlled Clinical Study Evaluating the Effect of Rhubarb Extract Supplementation on Stool Frequency and Biological Markers of Intestinal Function in Seniors With a Low Number of Defecations Per Week

Randomized double-blind clinical study versus placebo evaluating the effect of supplementation with rhubarb extract on stool frequency and biological markers of intestinal function in seniors with a low number of defecations per week

Read the detailed description

The main objective was to evaluate the effect of rhubarb extract supplementation on improving intestinal transit in subjects with a low number of defecations per week.

The secondary objectives are to assess: changes in the appearance of the stool; the evolution of the quality of life; the evolution of biological markers of intestinal function; the evolution of the intestinal microbiota; the evolution of low-grade chronic inflammatory markers; the evolution of endotoxemia; the evolution of oxidative stress; the relief experienced; subject satisfaction; the evolution of safety dosages; subject compliance.

The main efficacy criterion is the improvement in intestinal transit assessed by the frequency of stool emissions reported daily from D-14 to D 30.

The secondary endpoints correspond to the evolution of the aspect of the stools evaluated by the Bristol Stool Scale and the evolution of the quality of life evaluated by the SF-12.

They also correspond to the relief of the subjects evaluated on the PGII scale, to the tolerance of the product over the entire study period and in particular the occurrence of diarrhea and to the description of satisfaction on a Likert scale.

Regarding the biological assays, they correspond to:

  • for biological markers of intestinal function to those specific to intestinal transit, i.e. active GLP-1, total GIP total PYY, PP (DPPIV substrates), Leptin, Insulin, by blood samples at D0 and D30 and that specific for permeability intestinal or claudin-3 by urine samples at D0 and D30;
  • for the microbiota, analysis of bacterial taxa by PCR and metagenomics carried out on faecal samples collected on D0 and D30;
  • for chronic low-grade chemokine inflammatory markers, Prostaglandins, interleukins, pro- and anti-inflammatory cytokines, ultra-sensitive CRP by blood samples at D0 and D30;
  • for the measurement of endotoxaemia in the analysis of circulating LPS, TRL2 and 4 by blood samples on D0 and D30;
  • for the measurement of oxidative stress to the ROS and NADPH oxidase content by blood serum samples at D0 and D30;
  • for the safety assays for the lipid profile, NFS, glycaemia, kalemia, transaminases by blood samples on D0 and D30.

The studied product is a food supplement composed of a rhubarb extract standardized, characterized and optimized in order to improve these functional effects on the intestinal system (regulation of the local inflammatory system, microflora, peristalsis, etc.) at 2 different doses. The food supplement comes in the form of a film-coated tablet. The comparator product was a placebo with an appearance strictly identical to the verum and contains only excipients.

Being tested
single dose coated tablet Fruits & Fibres Rhubarbe with standardised rhubarb extract, placebo coated tablet, double dose coated tablet Fruits & Fibres Rhubarbe with standardised rhubarb extract

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • single dose coated tablet Fruits & Fibres Rhubarbe with standardised rhubarb extractDietary supplement

    coated tablet with a single dose of standardised rhubarb extract

  • placebo coated tabletDietary supplement

    coated tablet without active principle

  • double dose coated tablet Fruits & Fibres Rhubarbe with standardised rhubarb extractDietary supplement

    coated tablet with a double dose of standardised rhubarb extract

Study groups in NCT05541991
Study groupRoleWhat they receive
Single dose productExperimentalA single dose coated tablet with standardised rhubarb extract is administrated daily in the evening during 30days
Receives: Dietary Supplement: single dose coated tablet Fruits & Fibres Rhubarbe with standardised rhubarb extract
Double dose productExperimentalA double dose coated tablet with standardised rhubarb extract is administrated daily in the evening during 30days
Receives: Dietary Supplement: double dose coated tablet Fruits & Fibres Rhubarbe with standardised rhubarb extract
placebo productPlacebo comparatorA placebo coated tablet without active is administrated daily in the evening during 30days
Receives: Dietary Supplement: placebo coated tablet

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. change of the number of defecations per week

    The main objective was to evaluate the effect of rhubarb extract supplementation on changing intestinal transit in subjects with a low number of defecations per week.

    Measured: Daily from Day -14 until the selection visit (Day 0) and every day during the 30days of treatment (until Day +30)

Secondary outcomes (18)
  1. changes in the appearance of the stool

    This secondary criteria correspond to the evolution of the aspect of the stools evaluated by the Bristol Stool Scale

    Measured: Daily from Day -14 until the selection visit (Day 0) and every day during the 30days of treatment (until Day +30)

  2. the change of the quality of life

    the evolution of the quality of life is evaluated by the General quality of life score, not specific to a pathology (SF-12).

    Measured: measured at Day -14 and Day +30 of the treatment

  3. the evolution of biological markers of intestinal function

    for biological markers of intestinal function, this corresponds to those specific specific to intestinal permeability claudin-3 by urine samples at D0 and D30

    Measured: measured at Day 0 and Day +30 of the treatment

  4. the evolution of the biological marker of intestinal function, active GLP-1

    for the biological marker of intestinal function: active GLP-1, this corresponds to those specific to intestinal transit, by blood samples at Day 0 and Day 30

    Measured: measured at Day 0 and Day +30 of the treatment

  5. the evolution of the biological marker of intestinal function, total GIP

    for the biological marker of intestinal function: total GIP, this corresponds to those specific to intestinal transit, by blood samples at Day 0 and Day 30

    Measured: measured at Day 0 and Day +30 of the treatment

  6. the evolution of the biological marker of intestinal function, total PYY

    for the biological marker of intestinal function: total PYY, this corresponds to those specific to intestinal transit, by blood samples at Day 0 and Day 30

    Measured: measured at Day 0 and Day +30 of the treatment

  7. the evolution of the biological marker of intestinal function, PP (DPPIV substrates)

    for the biological marker of intestinal function: PP (DPPIV substrates), this corresponds to those specific to intestinal transit, by blood samples at Day 0 and Day 30

    Measured: measured at Day 0 and Day +30 of the treatment

  8. the evolution of the biological marker of intestinal function, Leptin

    for the biological marker of intestinal function: total Leptin, this corresponds to those specific to intestinal transit, by blood samples at Day 0 and Day 30

    Measured: measured at Day 0 and Day +30 of the treatment

  9. the evolution of the biological marker of intestinal function, Insulin

    for the biological marker of intestinal function: total Insulin, this corresponds to those specific to intestinal transit, by blood samples at Day 0 and Day 30

    Measured: measured at Day 0 and Day +30 of the treatment

  10. the evolution of the intestinal microbiota by PCR

    for the microbiota, this corresponds to the analysis of bacterial taxa by PCR carried out on faecal samples collected on D0 and D30

    Measured: measured at Day 0 and Day +30 of the treatment

  11. the evolution of the intestinal microbiota by metagenomics

    for the microbiota, this corresponds to the analysis of bacterial taxa by metagenomics carried out on faecal samples collected on D0 and D30

    Measured: measured at Day 0 and Day +30 of the treatment

  12. the evolution of low-grade chronic inflammatory markers

    for low-grade chronic inflammatory markers, this corresponds to the dosage of chemokines, Prostaglandins, interleukins, pro- and anti-inflammatory cytokines, ultra-sensitive CRP by blood samples at D0 and D30

    Measured: measured at Day 0 and Day +30 of the treatment

  13. the evolution of endotoxemia

    for the measurement of endotoxemia, this corresponds to the analysis of circulating LPS, TRL2 and 4 by blood samples on D0 and D30

    Measured: measured at Day 0 and Day +30 of the treatment

  14. the evolution of oxidative stress

    for the measurement of oxidative stress, this corresponds to the ROS and NADPH oxidase content by blood serum samples at D0 and D30;

    Measured: measured at Day 0 and Day +30 of the treatment

  15. the relief experience

    It corresponds to the relief of the subjects evaluated on the Patient Global Impression of Improvement scale (PGII scale)

    Measured: measured at Day +30 of the treatment

  16. subject satisfaction

    It corresponds to the tolerance of the product over the entire study period and in particular the occurrence of diarrhea and to the description of satisfaction on a Likert scale.

    Measured: measured at Day +30 of the treatment

  17. the evolution of the incidence of treatment

    for the evolution of the incidence of treatment, this corresponds to the lipid profile, NFS, glycaemia, kalemia, transaminases by blood samples on D0 and D30.

    Measured: measured at Day 0 and Day +30 of the treatment

  18. subject compliance for taking the product

    Unused products are collected to assess compliance by measuring the number of unused product

    Measured: measured at Day +30 of the treatment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Sep 2022
  2. Study start10 Feb 2017
  3. Primary completion14 Mar 2018
  4. Study completion13 Jun 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Randomized double-blind clinical study versus placebo
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
45 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05541991
Sponsor's protocol ID
C1486
Status last verified
Sep 2022
First submitted
24 Aug 2022
Last updated
15 Sep 2022
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing single dose coated tablet Fruits & Fibres Rhubarbe with standardised rhubarb extract and double dose coated tablet Fruits & Fibres Rhubarbe with standardised rhubarb extract in people with Constipation - Functional, run by ortis at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 29 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Sep 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

change of the number of defecations per week (time frame: Daily from Day -14 until the selection visit (Day 0) and every day during the 30days of treatment (until Day +30)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Sep 2022; AzTrials last refreshed its copy on 6 Nov 2026.

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