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Type 2 Diabetes MellitusNUPREDMNCT03231839

Nutritional Prevention of Diabetes Mellitus Type 2

A study testing Caloric restriction, no red meat and Increased fiber intake in people with Type 2 Diabetes Mellitus and Nutritional and Metabolic Diseases, run by University Hospital Tuebingen at 1 site in Germany.

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 investigates the influence of red meat and fibers on glucose metabolism and body fat composition in subjects at increased risk for type 2 diabetes. Read more about this study

Who is it for?
Ages 18 to 75 years
What is being tested?
Caloric restriction, no red meat and Increased fiber intake
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
132 participants
Where
1 siteGermany
Study dates
1 Feb 2009to 31 Jul 2016
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 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Individuals at a high risk for Type 2 diabetes:
  • positive family history of type 2 diabetes,
  • presence of metabolic syndrome,
  • body mass index (BMI) > 27 kg/m2,
  • diagnosis of impaired glucose tolerance (IGT)
  • previous diagnosis of gestational diabetes diabetes

Who cannot join

  • Main exclusion criteria
  • diagnosis of type 1 or 2 diabetes mellitus
  • BMI >45 kg/m²
  • presence of serious illness such as cardiovascular, malignant or psychiatric disease.

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • University of Tuebingen

    Tübingen, 72074

Other trials in Germany

About this study

Official title: Identification of Factors Predicting the Success of a Nutritional Intervention to Decrease the Risk of Type 2 Diabetes

This study investigates the influence of red meat and fibers on glucose metabolism and body fat composition in subjects at increased risk for type 2 diabetes.

Read the detailed description

The epidemiologic evidence for increased red meat intake and decreased fiber intake as risk factors for T2D is solid. However, few intervention studies have been performed in order to investigate the role of whole-grain intake or the consumption of red meat in glycemic control and prevention of diabetes, yielding contradicting results. Thus, in order to prove causality, further identify potential underlying mechanisms and be able to improve lifestyle modification programs, we performed a randomized, controlled intervention study over six months. The participants are individuals at increased risk for tyoe 2 diabetes. They were randomised to 3 interventions groups: 1) caloric restriction of 400 kcal/day (control group), 2) caloric restriction plus no red meat consumption 3) caloric restriction and increase in fiber intake. Subjects where thoroughly phenotyped by anthropometric parameters, oral glucose tolerance tests, and MRI measurements of body fat composition and iron content in the liver. In this study, we want to compare the effectiveness of reduced caloric intake only versus reduced caloric intake with an additional modification of diet composition in terms of red meat and fiber consumption.

Being tested
Caloric restriction, no red meat, Increased fiber intake
Medical subject headings
Diabetes Mellitus, Type 2, Nutritional and Metabolic Diseases, Fatty Liver, Insulin Resistance

What participants receive

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

  • Caloric restrictionBehavioural

    After the baseline measurements individuals underwent dietary counseling and had 6 sessions with a dietician (after, 1,4,8,12 16 and 20 weeks).

  • no red meatBehavioural

    After the baseline measurements individuals underwent dietary counseling and had 6 sessions with a dietician (after, 1,4,8,12 16 and 20 weeks).

  • Increased fiber intakeBehavioural

    After the baseline measurements individuals underwent dietary counseling and had 6 sessions with a dietician (after, 1,4,8,12 16 and 20 weeks).

Study groups in NCT03231839
Study groupRoleWhat they receive
Caloric restriction (control)Placebo comparatordaily reduction of caloric intake aimed at 400 kcal/day
Receives: Behavioral: Caloric restriction
No red meatActive comparatordaily reduction of caloric intake aimed at 400 kcal/day plus no red meat intake
Receives: Behavioral: no red meat
Increased fiber intakeActive comparatordaily reduction of caloric intake aimed at 400 kcal/day plus increased fiber intake (aim: 40gr/day)
Receives: Behavioral: Increased fiber intake

What is being measured

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

  1. change in glucose metabolism

    glucose metabolism measured during the oral glucose tolerance test (OGTT)

    Measured: baseline and six months

Secondary outcomes (4)
  1. Insulin secretion

    Disposition index (insulin sensitivity (Matsuda) x insulinogenic index (IGI))

    Measured: baseline and six months

  2. liver fat

    measured by magnetic resonance spectroscopy

    Measured: baseline and six months

  3. liver iron content

    measured by magnetic resonance imaging

    Measured: baseline and six months

  4. body composition

    measured by magnetic resonance imaging

    Measured: baseline and six months

Timeline

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

  1. First posted27 Jul 2017
  2. Study start1 Feb 2009
  3. Primary completion30 Jun 2012
  4. Study completion31 Jul 2016

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
Parallel groups
Masking
None (open label)
Enrolment
132 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03231839
Sponsor's protocol ID
UTubingen4
Acronym
NUPREDM
Status last verified
Jul 2017
First submitted
24 Jul 2017
Last updated
27 Jul 2017
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Not allowed by ethics committee

Publications

  • Willmann C, Heni M, Linder K, Wagner R, Stefan N, Machann J, Schulze MB, Joost HG, Haring HU, Fritsche A. Potential effects of reduced red meat compared with increased fiber intake on glucose metabolism and liver fat content: a randomized and controlled dietary intervention study. Am J Clin Nutr. 2019 Feb 1;109(2):288-296. doi: 10.1093/ajcn/nqy307.

    PubMed 30721948

Questions about this trial

What is this clinical trial studying?

A study testing Caloric restriction, no red meat and Increased fiber intake in people with Type 2 Diabetes Mellitus and Nutritional and Metabolic Diseases, run by University Hospital Tuebingen at 1 site in Germany.

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 6 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 27 Jul 2017. 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 Germany. 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 in glucose metabolism (time frame: baseline and six months). 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 NCT03231839, 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 27 Jul 2017; AzTrials last refreshed its copy on 6 Nov 2026.

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