- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03143400
Behavior of Various Galenic Forms of a Probiotic in the Digestive Tract. (PROBIOSIN)
Behavior of Various Galenic Forms of a Probiotic in the Digestive Tract
The aim of this study is to assess the behavior of a model probiotic strain, Lactobacillus salivarius, in the digestive tract of healthy volunteers and of ileostomized patients, depending on its galenic form.
Two classic forms will be tested (powder and pill). An innovative galenic form (pill with retarded release), developed to enhance intestinal viability and probiotic efficacy, will also be tested.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Probiotic survival in the stomach and in stools will be assessed on 9 healthy volunteers. It will be evaluated in the stomach after one unique probiotic intake. Gastric content will be collected at different times, up until an hour after probiotic ingestion.
Fecal probiotic survival will be evaluated after a 7-day period of probiotic intake. Initial stool collection, before first probiotic intake, will be used as control. Stools will be collected after 7 days of treatment (D8) and 3 days after last intake (D10).
Probiotic survival in the small intestine will be assessed on 9 patients with stable medical condition that either have a terminal or preterminal ileostomy. It will be evaluated after one unique probiotic intake. Ileal content will then be collected within 4 hours after intake.
Probiotic survival will be evaluated in the stomach, small intestine and in stools by qPCR and determination of CFU. Microbiota composition will be determined by pyrosequencing on ileal and fecal samplings. Finally, metabolic activity will be determined by chromatography with a short chain fatty acid dosage.
Healthy volunteers will test each of the 3 galenic forms of Lactobacillus salivarius on 3 periods of 7 days. Each period will be separated from another with a 14-day wash-out period at least.
Ileostomized patients will only take a unique dose of each probiotic. Each intake of a different probiotic will be separated from another by a 14-day wash-out period at least.
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Corinne BOUTELOUP, MD
- Email: cbouteloup@chu-clermontferrand.fr
Study Locations
-
-
Auvergne
-
Clermont-Ferrand, Auvergne, France, 63003
- Recruiting
- CHU Clermont-Ferrand
-
Contact:
- Corinne BOUTELOUP, MD
- Email: cbouteloup@chu-clermontferrand.fr
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
For the healthy volunteer group :
- age between 18 and 65 years old
- without previous digestive pathology that could have modified probiotic survival either by the disease itself or by its treatments (IBD, cholestatic disease, pancreatic insufficiency)
- without previous digestive surgery (except from appendectomy)
- ability to sign written informed consent
- health insurance
For the patients with a ostomy pouch :
- Age between 18 and 65 years old
- Terminal or preterminal (less than 30 cm of resected ileon) ileostomy performed more than 2 months ago with a stabilized digestive situation and a healthy residual intestine.
- Without other digestive resection (gall bladder, stomach, pancreas)
- Healthy and diversified diet
- Health insurance
Exclusion Criteria for both groups :
- Acute disease, digestive in particular
- Intake of antibiotics and non-steroidal anti-inflammatory drugs in the last 3 months
- Intake of probiotics and symbiotic within the month before inclusion, either in a food supplement form (Lactibiane, Probiolog, Bacilor, Ergyphyllus, Bion3,) or as a milk product (Actimel, Activia, LC1)
- Intake of an antacid or gastric antisecretory (anti-H2, proton pump inhibitor) the week before study
- Intake of gastric emptying modificators and drugs that could slow down bowel movement (domperidone, metoclopramide, morphinise, loperamide) within 48 hours before study.
- Pregnant or breastfeeding women
- Patient under guardianship or curatorship
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Healthy volunteers
Healthy volunteers will test each of the 3 galenic forms of Lactobacillus salivarius on 3 periods of 7 days.
Each period will be separated from another with a 14-day wash-out period at least.
|
Two classic forms will be tested (powder and pill).
An innovative galenic form (pill with retarded release), developed to enhance intestinal viability and probiotic efficacy, will also be tested.
|
Active Comparator: Ileostomized patients
Ileostomized patients will only take a unique dose of each probiotic.
Each intake of a different probiotic will be separated from another by a 14-day wash-out period at least.
|
Two classic forms will be tested (powder and pill).
An innovative galenic form (pill with retarded release), developed to enhance intestinal viability and probiotic efficacy, will also be tested.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Survival rate of Lactobacillus salivarius
Time Frame: 7 days
|
Measured by qPCR and determination of CFU in gastric content and in stools for each galenic form.
|
7 days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Probiotic residual amount in control healthy volunteer
Time Frame: 10 days
|
Measured by qPCR and determination of CFU
|
10 days
|
Probiotic residual amount in ostomy pouch
Time Frame: 8 days
|
Measured by qPCR and determination of CFU.
Fecal microbiota composition at D0 and D8 after the first intake, in the healthy volunteer group, for each 3 galenic forms.
|
8 days
|
Ileal microbiota composition
Time Frame: 8 days
|
Patients with ostomy pouch
|
8 days
|
Potential occurrence of digestive symptoms or extra-digestive
Time Frame: 8 days
|
Nausea, bloating, flatulence, abdominal pain, intestinal transit modification
|
8 days
|
Comparison of residual probiotic amount between in vivo and in vitro collection in the stomach, ileon and in stools
Time Frame: 8 days
|
Measured by qPRC and determination of CFU number
|
8 days
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- CHU-322
- 2016-A00597-44 (Other Identifier: 2016-A00597-44)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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