Effects of Resistant Starch in a Baked Snack Bar on a Post-prandial Glycemic and Insulinemic Response

July 10, 2014 updated by: Wayne Campbell, Purdue University
  • About two-thirds of adults in the United States are overweight or obese which can cause adverse health consequences for those individuals. Post-prandial hyperglycemia is one of these possible consequences and is associated with a higher risk for Type 2 Diabetes. Controlling hyperglycemia is important in the prevention of the onset of diabetes and obesity. Resistant starch is a dietary carbohydrate which is not completely digested in the gut and produces energy for the body to use. The investigators are interested in assessing the effects of resistant starch on postprandial blood glucose and insulin concentrations.
  • Aim: To assess the effects of a resistant starch on post-prandial blood glucose and insulin concentrations.
  • Hypothesis: A baked snack bar with a resistant starch will blunt and sustain the post-prandial rise in blood glucose and insulin concentrations compared to a baked snack bar with maltodextrin (an easily digested carbohydrate).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

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.

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 (Anticipated)

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.
20

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

  • United States
    • Indiana
      • West Lafayette, Indiana, United States, 47907
        • Recruiting
        • Purdue University
        • Contact:

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 29 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Thirty healthy men and women (aged 18-29y) will be recruited from the greater Lafayette, IN region with the expectation that ≥20 subjects will complete the study. Subjects must weigh >110 pounds, with a BMI between 20.0 and 29.9.

Exclusion Criteria:

  • Weight change > 3kg in the past 3 months
  • Exercising vigorously over the past 3 months as well as no exercise 3 days prior to testing day
  • Intestinal disorders including lipid mal-absorption or lactose intolerance
  • Abnormal liver or kidney function tests; fasting blood glucose >100mg/dL
  • Smoking
  • Drinking more than 2 alcoholic drinks per day
  • Taking lipid-lowering medications or dietary supplements affecting plasma cholesterol concentration.
  • Subjects must not be pregnant or lactating.

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: Double

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: Resistant starch
The test snack bar consumed has the resistant starch
Dietary supplement: Resistant starch
Each subject will complete 2 testing days (randomized and crossover design). On each of 2 test days, subjects will arrive at the Purdue Clinical Research Center after a 12-h fast and will consume a snack bar containing resistant starch. The test snack bar will be consumed along with a standard meal provided at the start of the test day. A second standard meal that does not contain the snack bar will be consumed four hours later.
Experimental: Control
The control bar uses maltodextrin rather than the resistant starch.
Dietary supplement: Resistant starch
Each subject will complete 2 testing days (randomized and crossover design). On each of 2 test days, subjects will arrive at the Purdue Clinical Research Center after a 12-h fast and will consume a snack bar containing resistant starch. The test snack bar will be consumed along with a standard meal provided at the start of the test day. A second standard meal that does not contain the snack bar will be consumed four hours later.

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
resistant starch effects
Time Frame: 2 weeks
effects of resistant starch consumption of area under the curve of blood serum glucose, insulin, and hydrogen breath testing
2 weeks

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.
Purdue University

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.
July 1, 2014

Primary Completion (Anticipated)

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.
December 1, 2014

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).
July 9, 2014

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.
July 10, 2014

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.
July 11, 2014

Study Record Updates

Last Update Posted (Estimate)

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.
July 11, 2014

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.
July 10, 2014

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.
July 1, 2014

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.
  • 1406014929

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