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Intestinal MicrobiotaTORNADONCT01449383

Effect of Diet on Intestinal Microbiota and Obesity Markers in Adults

A study testing low meat high fibre and high meat low fibre in people with Intestinal Microbiota and Blood Markers, run by German Institute of Human Nutrition.

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

This study aims to investigate the direct effect of high amounts of dietary fibre and high amounts of red meat in daily diet on intestinal microbiota, anthropometry and obesity markers in healthy adults. Read more about this study

Who is it for?
Ages 20 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Intestinal Microbiota, Blood Markers
What is being tested?
low meat high fibre and high meat low fibre
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
No sites listed yet
Study dates
Nov 2010to Aug 2012
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 20 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • age 20 to 60
  • obtained informed consent
  • willing and able to consume defined diets
  • willing and able to collect all intended samples

Who cannot join

  • prevalent chronic disease, i.e. diabetes (type 1 and 2), cardiovascular diseases, cancer
  • Antibiotic treatment within the last three month before start of studies
  • Prevalent gastrointestinal diseases, disorders and surgeries
  • Pregnancy and breastfeeding

About this study

Official title: Molecular Targets Open for Regulation by the Gut Flora - New Avenues for Improved Diet to Optimize European Health (TORANDO): WP2 Individual Intervention Studies- Effect of Diet on Intestinal Microbiota and Obesity Markers in Adults

This study aims to investigate the direct effect of high amounts of dietary fibre and high amounts of red meat in daily diet on intestinal microbiota, anthropometry and obesity markers in healthy adults.

Read the detailed description

Human gut microbiota composition and its bacterial pathways are involved in many metabolic processes, including digestion of actually indigestible food components and fat storage. Due to that it may contributes to the developement of obesity being one of the most important risk factors for many chronic diseases. Gut microbiota is under the influence of nutrition, consumption of pro- and prebiotics can promote the growth of certain bacterial strains. In a cross over dietary intervention this work will investigate the effect of defined diets on the intestinal microbiota in 20 healthy adults. The diets contain either high amounts (more than 40g/d) of dietary fibre and low red meat (less than 30g/d) or low amounts (less than 20g/d) of dietary fibre and high amounts of red meat (200g/d). Intervention periods last 3 weeks each interrupted by a 3 weeks wash out period. Examination of participants will happen at the beginning and at the end of both interventions and will contain anthropometry, blood sample, faecal sample, urine sample and saliva sample.

Being tested
low meat high fibre, high meat low fibre
Keywords
cross over, dietary intervention, fibre, red meat, microbiota

What participants receive

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

  • low meat high fibreDietary supplement

    less than 30g red meat and at least 40g dietary fibre per day

  • high meat low fibreDietary supplement

    at least 200g red meat (pork, beef or other mammals) and not more than 20g dietary fibre per day

Study groups in NCT01449383
Study groupRoleWhat they receive
low meat high fibre (lmhf)Active comparatorconsumption of less than 30g red meat per day and at least 40g dietary fibre per day
Receives: Dietary Supplement: low meat high fibre
high meat low fibre (hmlf)Active comparatorconsumption of 200g red meat and not more than 20g dietary fibre per day
Receives: Dietary Supplement: high meat low fibre

What is being measured

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

  1. change in gut microbiota composition

    Measured: baseline, week 3, 6 and 9

Secondary outcomes (3)
  1. change in anthropometry

    Body height, body weight, circumferences of waist, hip, upper arm and leg, lower leg and the thickness of body folds at waist, back, upper arm and leg, lower leg and thorax depth and width

    Measured: baseline, week 3, 6 and 9

  2. change in blood markers

    clinical blood count, including Hba1c, gamma-GT, cholesterol, HDL, LDL, Triglycerides, s-creatinin, CRP

    Measured: baseline, week 3, 6 and 9

  3. change in salivary microbial composition

    Measured: baseline, week 3, 6 and 9

Timeline

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

  1. First posted10 Oct 2011 (estimated)
  2. Study startNov 2010
  3. Primary completionAug 2012
  4. Study completionAug 2012

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
Prevention
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01449383
Sponsor's protocol ID
KBBE-2007-2-2-07_WP2.4
Acronym
TORNADO
Status last verified
Aug 2012
First submitted
5 Oct 2011
Last updated
14 Aug 2012
Results posted
No
Data monitoring committee
No

Publications

  • Foerster J, Maskarinec G, Reichardt N, Tett A, Narbad A, Blaut M, Boeing H. The influence of whole grain products and red meat on intestinal microbiota composition in normal weight adults: a randomized crossover intervention trial. PLoS One. 2014 Oct 9;9(10):e109606. doi: 10.1371/journal.pone.0109606. eCollection 2014.

    PubMed 25299601

Questions about this trial

What is this clinical trial studying?

A study testing low meat high fibre and high meat low fibre in people with Intestinal Microbiota and Blood Markers, run by German Institute of Human Nutrition.

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 4 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 14 Aug 2012. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. 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 in gut microbiota composition (time frame: baseline, week 3, 6 and 9). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01449383, which also lists 1 linked publication.

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 14 Aug 2012.

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