The Effects of Premeal Consumption of Protein-enriched Bar on Blood Glucose Level and Secretion of Hormones

November 27, 2017 updated by: Seoul National University Hospital

The Effects of Premeal Consumption of Protein-enriched Bar on Blood Glucose Level and Secretion of Hormones in Healthy Adults and Patients With Type 2 Diabetes

The aim of this study is to explore premeal protein-enriched bar effect in postprandial glucose levels and concentration of plasma incretin hormones [glucagon-like peptide 1 (GLP-1) and/or glucose-dependent insulinotropic polypeptide (GIP)] in healthy subjects and those with type 2 diabetes.

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

Fifteen healthy subjects and fifteen subjects with type 2 diabetes treated by diet and/or metformin, SU, DPP4 inhibitors will be recruited. Every subject will studied on 2 separate days in random order with 1-2 week intervals. These participants will consume protein enriched bar followed by a standardized high-glycemic-index breakfast in a hospital setting or breakfast followed protein enriched bar in a cross-over fashion. Blood sampling will be done at the moment of start of breakfast (0 min) and then 10, 20, 30, 60, 90, 120, 150, 180 min. Plasma glucose levels, total/active GLP-1, GIP, insulin, C-peptide, glucagon will be measured. Incremental area under the curve (iAUC) of glucose level and hormone from 0 min to 180 min will be calculated.

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.
30

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

  • Korea, Republic of
      • Seoul, Korea, Republic of, 110-744
        • Seoul National University 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

19 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • BMI 18.5~35 kg/m2

  • Healthy volunteer:

    • never diagnosed by diabetes and
    • fasting plasma glucose <=100mg/dl and HbA1c <6.0%

  • participants with diabetes

    • diagnosed by diabetes
    • if treated by diet, HbA1c 6.0~9.0%
    • if treated by metformin or SU, HbA1c 6.0~10.0%
    • if treated by DPP4 inhibitor HbA1c 6.0~9.0%

Exclusion Criteria:

  • Those who diagnosed by Type 1 diabetes
  • History of DKA
  • History of insulin therapy
  • Allergy to wheat, flour, nuts, milk
  • Pregnancy/lactation
  • AST or ALT >2.5 times of upper normal reference range
  • eGFR <30 mL/min/1.73m2
  • Hb <10g/dl
  • History of GI surgery (except hemorrhoidectomy, appendectomy)

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: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

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.
Experimental: premeal protein bar first

intervention: premeal protein-enriched bar intake

  • protein enriched bar(total serving: 30g, 43.28% carbohydrate; 1.29% fat; 40.39% protein; 42.63% fiber) will be given 30 minutes before breakfast
  • protein enriched bar is provided with 150 ml of water
  • amount of protein bar : 30g
  • breakfast : plain bagel, cream cheese, strawberry jam, orange juice 210ml
Dietary supplement: premeal protein-enriched bar intake
Premeal protein bar is provided 30 minutes before breakfast. Participants have to eat protein bar with in 5 minutes with 150ml of water.
Other Names:
  • premeal protein bar
Other: breakfast first

intervention: breakfast follows by protein bar

  • protein enriched bar is provided with 150 ml of water shortly after breakfast
  • amount of protein bar : 30g
  • breakfast : plain bagel, cream cheese, strawberry jam, orange juice 210ml
Other: breakfast follows by protein bar
Participants have to eat provided breakfast within 30 minutes. It is recommended for participants to eat protein bar shortly after finishing breakfast within 5 minutes.

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
Time Frame
plasma glucose level after breakfast
Time Frame: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
-30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
Area under the curve (AUC) of plasma glucose level after breakfast
Time Frame: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
-30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min

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
Time Frame
plasma total/active GLP-1 level after breakfast
Time Frame: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
-30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
Area under the curve of plasma total/active GLP-1 level after breakfast
Time Frame: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
-30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
plasma GIP level after breakfast
Time Frame: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
-30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
Area under the curve of plasma GIP level after breakfast
Time Frame: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
-30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
plasma insulin level after breakfast
Time Frame: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
-30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
Area under the curve of plasma insulin level after breakfast
Time Frame: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
-30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
plasma C-peptide level after breakfast
Time Frame: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
-30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
Area under the curve of plasma C-peptide level after breakfast
Time Frame: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
-30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
plasma glucagon level after breakfast
Time Frame: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
-30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
Area under the curve of plasma glucagon level after breakfast
Time Frame: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min
-30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min

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.
Seoul National University Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Chair: Young Min Cho, MD, PHD, Associate Professor Division of Endocrinology and Metabolism Department of Internal Medicine Seoul National University College of Medicine

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.
October 1, 2015

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.
July 1, 2016

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.
September 1, 2016

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).
October 26, 2015

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.
October 26, 2015

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.
October 28, 2015

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.
November 29, 2017

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.
November 27, 2017

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, 2015

More Information

Terms related to this study

Keywords

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.
  • H-1504-103-666

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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