- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03140878
Defining the Normal Human Response to Probiotics
Defining the Normal Human Response to Probiotics and Developing an in Vitro System to Identify New Microbes With Probiotic Functions
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The study includes 3 visits. The first visit serves to check inclusion/exclusion criteria/complete questionnaire/give information about the study and receive consent. At visit 2 and 3 the included individuals will drink a placebo blend or a drink containing Lactobacillus rhamnosus GG (LGG®) and they will subsequently be biopsied from the upper intestine during endoscopy while under nurse administered propofol sedation (NAPS). There will be four weeks between visit 2 and 3.
At visit 2 and 3, biopsies will be taken from duodenum and jejunum, and luminal fluids will be collected, and one blood sample will be collected.
The down stream analysis will include a combination of gene expression analysis, microbiome analysis and classification of the individuals based on analysis of blood samples.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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-
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Copenhagen, Denmark
- Herlev Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Healthy men or women
- No medication
- Age between 18 and 35 years
- BMI below 30
- Provided voluntary written informed consent
Exclusion Criteria:
- All clinical diagnoses and disorders requiring medicine
- Patient diagnosed with inflammatory bowel disease such as ulcerative colitis and Crohn's disease, colorectal cancer or suffering from irritable bowel syndrome.
- Pregnant and women who are breast-feeding
- Patient with known blood clothing disorders
- Patients with clinical psychiatric diagnoses (including dementia)
- Individuals who have undergone abdominal surgery, which might have effect on the GI function, except appendectomy and cholecystectomy
- Individuals with high blood pressure (≥140 mmHg /90 mmHg)
- Systemic use of antibiotics or steroids or antimicrobial medication in the last 4 months
- Daily usage of NSAID in the last 2 months or incidental use in the last 2 weeks prior to screening
- Usage of medications, except oral contraceptives, during the 14 days prior to screening
- Lactose intolerance
- Participation in other clinical trials in the past three months
- Regular use of probiotics in the last 6 weeks
- Smoking
- Planned changes to current diet or exercise regime
- Use of laxatives, anti-diarrheals, anti-cholinergics within last 4 weeks prior to screening
- Use of immunosuppressant drugs within last 4 weeks prior to screening
- Ulcer or malignancy in the intestine which is discovered during second visit
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: LGG
Lactobacillus rhamnosous (LGG) 450 billion CFU dissolved in water
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LGG is dissolved in water and consumed at one occasion (either at visit 2 or 3)
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Placebo Comparator: Placebo
The placebo product is the same vegetable capsule as the experimental product, identical in composition, taste and appearance but without probiotics
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Placebo is dissolved in water and consumed at one occasion (either at visit 2 or 3)
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Genome-wide gene expression
Time Frame: 3 years
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The effect of LGG on genome-wide gene expression in intestinal tissue and cells
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3 years
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Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
16S analysis of luminal fluid
Time Frame: 3 years
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3 years
|
Collaborators and Investigators
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
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
- HND-GI-024
- H-17002470 (Registry Identifier: Regional ethical committee Denmark)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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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