Düsseldorf Bread Study (DBS)

October 27, 2021 updated by: Stephan Martin, West German Center of Diabetes and Health

Düsseldorf Bread Study on Health Effects of Bread.

The hypothesis is to be tested that eating carbohydrate-reduced bread over three months leads to a significant weight difference compared to conventional, carbohydrate-rich bread.

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.

Detailed Description

Carbohydrate reduction is an important element for weight loss or can also be used to keep weight constant. Since the majority of the carbohydrates consumed daily in industrialized countries come from bread and rolls, the present study will examine the effect of two different types of bread on the weight development of overweight bread consumers. The two types of bread differ in their carbohydrate content and the hypothesis is to be tested that eating carbohydrate-reduced bread over three months leads to a significant weight difference compared to conventional, carbohydrate-rich bread. The comparison of the two types of bread is carried out triple blinded. During two visits (before and after the bread consumption phase), the health status is determined with physical parameters and laboratory parameters from a blood test. The primary endpoint is body weight. Overall, this study will for the first time allow extensive statements to be made on the health value of the three-month consumption of two different types of bread.

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.
80

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

  • Germany
      • Düsseldorf, Germany, 40591
        • West German Centre of Diabetes and Health

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

18 years to 69 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

- body mass index of at least 27 kg/m2

Exclusion Criteria:

  • serious illness with hospitalization in the last 3 months
  • Changes in body weight (estimated weekly average) by more than 2 kg in the past 4 weeks
  • Non-smoking status for less than 3 months
  • Change of smoking habits planned during the study
  • acute diseases such as respiratory or gastrointestinal infections
  • Chronic diseases, e.g. Tumor diseases, chronic obstructive pulmonary disease (COPD), asthma, dementia, intestinal diseases, diabetes
  • regular use of medication (except contraceptives) such as Lipid lowering, blood pressure lowering, weight-regulating medication, aspirin
  • no contraception in women of childbearing age or breastfeeding a child
  • high sporting activity (≥ 1 hour per day)
  • planned absence of> 7 days during the intervention phase

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: Prevention
  • 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: carbohydrate rich bread
Other: carbohydrate rich bread
Consumption of carbohydrate rich bread for three months.
Experimental: carbohydrate reduced bread
Other: carbohydrate reduced bread
Consumption of carbohydrate reduced bread for three months.

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
body weight
Time Frame: 3 months
change of body weight in kg
3 months

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
body mass index
Time Frame: 3 months
change of body mass index in kg/m*m (body weight and height will be combined to report body mass index)
3 months
waist circumference
Time Frame: 3 months
change of weight circumference in cm
3 months
waist-to-height-index
Time Frame: 3 months
change of waist-to-height-index (waist circumference and height will be combined to report waist-to-height-index)
3 months
hip circumference
Time Frame: 3 months
change of hip circumference in cm
3 months
blood pressure
Time Frame: 3 months
change of blood pressure in mmHg
3 months
triglycerides
Time Frame: 3 months
change of triglycerides in mg/dl
3 months
total cholesterol
Time Frame: 3 months
change of total cholesterol in mg/dl
3 months
high-density lipoprotein (HDL) cholesterol
Time Frame: 3 months
change of high-density lipoprotein (HDL) cholesterol in mg/dl
3 months
low-density lipoprotein (HDL) cholesterol
Time Frame: 3 months
change of low-density lipoprotein (HDL) cholesterol in mg/dl
3 months
hemoglobin A1c (HbA1C)
Time Frame: 3 months
change of hemoglobin A1c (HbA1C) in %
3 months
fasting blood glucose
Time Frame: 3 months
change of fasting blood glucose in mg/dl
3 months
fasting blood insulin
Time Frame: 3 months
change of fasting blood insulin µU/ml
3 months
homeostasis model assessment of insulin resistance (HOMA-IR)
Time Frame: 3 months
change of homeostasis model assessment of insulin resistance (HOMA-IR) (fasting blood glucose and fasting blood insulin will be combined to report HOMA-IR)
3 months
height
Time Frame: at baseline
height in cm
at baseline

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.
West German Center of Diabetes and Health

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Bakery Hinkel

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 (Actual)

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.
August 1, 2020

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.
October 21, 2021

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.
October 21, 2021

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).
January 22, 2020

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.
January 28, 2020

First Posted (Actual)

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.
January 30, 2020

Study Record Updates

Last Update Posted (Actual)

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.
October 28, 2021

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.
October 27, 2021

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.
October 1, 2021

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.
  • Bread study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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