Probiotics and Endotoxemia (PROMS-01)

December 8, 2014 updated by: Danisco

Probiotics and Endotoxemia in Humans

The purpose of this study is to determine whether probiotic treatment of overweight volunteers consuming high fat diet is able to reduce plasma lipopolysaccharide concentration.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
90

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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 Locations

  • France
    • Cedex 9
      • Toulouse, Cedex 9, France
        • CHU Toulouse 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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Body mass index ≥ 27 kg/m2; above 18 years of age
  • Used to eat high fat diet (more than 40% of total energy intake)

Exclusion Criteria:

  • Treated cardiovascular risk factors, treated hypertension, treated dyslipidemia, treated diabetes; Known diabetes, hypertension, dyslipidemia
  • Severe illnesses
  • Artificial heart valve
  • Immunosuppression
  • Regular consumption of probiotics
  • History of bariatric surgery
  • Consumption or wish to consume Orlistat
  • Participation in other research
  • Pregnancy or wishing/trying to get pregnant
  • Inability to follow protocol.

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Placebo Comparator: Placebo
Dietary supplement: Probiotic bacterium Bifidobacterium lactis
Probiotic placebo controlled intervention
Other Names:
  • Bifidobacterium animalis subsp. lactis
Experimental: Probiotic
Dietary supplement: Probiotic bacterium Bifidobacterium lactis
Probiotic placebo controlled intervention
Other Names:
  • Bifidobacterium animalis subsp. lactis

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Level of plasma endotoxin (plasma levels of lipopolysaccharides) in the volunteers before and after the 12 week intervention
Time Frame: 12 weeks
Quantitative, kinetic assay for the detection of gram negative bacterial endotoxin (lipopolysaccharide) is used to test whether the probiotic intervention can reduce plasma endotoxin levels (IU/ml) compared to the baseline.
12 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Volunteer weight before and after the 12 week intervention.
Time Frame: 12 weeks
12 weeks
Volunteer waist perimeter before and after the 12 week intervention
Time Frame: 12 weeks
12 weeks
Insulin resistance (HOMA-IR index), glycemia, insulinemia and glycated hemoglobin in the volunteers before and after the 12 week intervention
Time Frame: 12 weeks
Insulin resistance (IR) will be quantified in the non-diabetic adults using the HOMA-IR index calculated as the product of fasting plasma insulin (in microunits per milliliter) and fasting plasma glucose (in millimoles per liter), divided by 22.5. Higher HOMA values indicate higher IR. Glycated haemoglobin is used as a biological measure indicator of blood glucose concentration over 3 months.
12 weeks
Brachial blood pressure of the volunteers before and after the 12 week intervention.
Time Frame: 12 weeks
12 weeks
Blood lipids in the volunteers before and after the 12 week intervention.
Time Frame: 12 weeks
Plasma total cholesterol and triglycerides are measured by enzymatic methods. High-density lipoprotein (HDL) cholesterol is measured in the supernatant after sodium phosphotungstate/magnesium chloride precipitation. Low-density lipoprotein (LDL) cholesterol is determined by the Friedewald formula.
12 weeks
Serum inflammatory markers of volunteers before and after the 12 week intervention.
Time Frame: 12 weeks
IL-6 (Interleukin-6) level is measured by an immunoenzymatic method, sCD14 is measured using an immuno-enzymatic method, and C reactive protein (CRP) levels is measured by an immunonephelemetric method.
12 weeks
Intestinal microbiota composition measured from stool samples before and after the 12 week intervention.
Time Frame: 12 weeks
Stool samples are collected before and after the intervention and stored frozen until analysis. Bacterial DNA is extracted from the samples and relevant bacterial groups including genus Bifidobacterium, species Bifidobacterium animalis subsp. lactis, Enterobacteriaceae, Escherichia coli, Bacteroidetes and Lactobacillus are measures with quantitative real-time PCR.
12 weeks
Gut function questionaire as a measure of tolerability
Time Frame: Symptoms during last 6 days
Questionaire is used to assess the tolerability of the probiotic supplementation. Questionaire includes questions on frequency and severity of flatulence and bloating, occurence of diarhea, frequency of defecation, and texture of feces using a stool chart.
Symptoms during last 6 days

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Danisco

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 1, 2010

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2010

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 1, 2011

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 24, 2010

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 5, 2010

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 6, 2010

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
December 9, 2014

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 8, 2014

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2014

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • PROMS-01

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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