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Diabetes MellitusNCT02589028

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

A study testing premeal protein-enriched bar intake and breakfast follows by protein bar in people with Diabetes Mellitus, run by Seoul National University Hospital at 1 site in South Korea.

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

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. Read more about this study

Who is it for?
Ages 19 to 80 yearsHealthy volunteers can take part
Conditions the study is for
Diabetes Mellitus
What is being tested?
premeal protein-enriched bar intake and breakfast follows by protein bar
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteSouth Korea
Study dates
Oct 2015to Sep 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 19 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • 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
Show all 9Show fewer
  • 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%

Who cannot join

  • 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
Show all 9Show fewer
  • eGFR <30 mL/min/1.73m2
  • Hb <10g/dl
  • History of GI surgery (except hemorrhoidectomy, appendectomy)

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • Seoul National University Hospital

    Seoul, 110-744

Other trials in South Korea

About this study

Official title: 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.

Read the 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.

Being tested
premeal protein-enriched bar intake, breakfast follows by protein bar
Keywords
diabetes mellitus, incretin hormone, glucose level, GLP-1, GIP, premeal protein
Medical subject headings
Diabetes Mellitus

What participants receive

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

  • premeal protein-enriched bar intakeDietary supplement

    Also called premeal protein bar

    Premeal protein bar is provided 30 minutes before breakfast. Participants have to eat protein bar with in 5 minutes with 150ml of water.

  • breakfast follows by protein barOther

    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.

Study groups in NCT02589028
Study groupRoleWhat they receive
premeal protein bar firstExperimentalintervention: 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
Receives: Dietary Supplement: premeal protein-enriched bar intake
breakfast firstOtherintervention: 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
Receives: Other: breakfast follows by protein bar

What is being measured

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

  1. plasma glucose level after breakfast

    Measured: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min

  2. Area under the curve (AUC) of plasma glucose level after breakfast

    Measured: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min

Secondary outcomes (10)
  1. plasma total/active GLP-1 level after breakfast

    Measured: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min

  2. Area under the curve of plasma total/active GLP-1 level after breakfast

    Measured: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min

  3. plasma GIP level after breakfast

    Measured: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min

  4. Area under the curve of plasma GIP level after breakfast

    Measured: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min

  5. plasma insulin level after breakfast

    Measured: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min

  6. Area under the curve of plasma insulin level after breakfast

    Measured: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min

  7. plasma C-peptide level after breakfast

    Measured: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min

  8. Area under the curve of plasma C-peptide level after breakfast

    Measured: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min

  9. plasma glucagon level after breakfast

    Measured: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min

  10. Area under the curve of plasma glucagon level after breakfast

    Measured: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min

Timeline

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

  1. First posted28 Oct 2015 (estimated)
  2. Study startOct 2015
  3. Primary completionJul 2016
  4. Study completionSep 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
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02589028
Sponsor's protocol ID
H-1504-103-666
Status last verified
Oct 2015
First submitted
26 Oct 2015
Last updated
29 Nov 2017
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing premeal protein-enriched bar intake and breakfast follows by protein bar in people with Diabetes Mellitus, run by Seoul National University Hospital at 1 site in South Korea.

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 9 inclusion and 9 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 29 Nov 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 South Korea. 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. 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?

plasma glucose level after breakfast (time frame: -30 min, 0(breakfast), 10, 20, 30, 60, 90, 120, 150, 180min). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 29 Nov 2017.

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