Nutrigenomics Investigation of the Body's Metabolic Response to 2 Different Meal Challenges (MECHE)

January 10, 2011 updated by: University College Dublin

A Nutrigenomics Study of Post-prandial Metabolic Responses in Individuals of Varying Body Weight: An Assessment of the Body's Response to Meals Containing Different Levels of Fat and Carbohydrate

The purpose of this study is to investigate the biological response to a metabolic stress, given in the form of a high carbohydrate or fat meal in normal weight, overweight and obese individuals and to further explore these responses using novel metabolomic, proteomic, transcriptomic and genotyping techniques.

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

The most recent statistics from the Department of Health in Ireland (2005) indicate that the leading causes of death are those in which nutrition can play a key preventative role. The proposed study will provide information on the metabolic stress from varying body weight overlaid by the additional metabolic stress of a test-meal challenge, in this case being delivered in the form of an oral glucose tolerance test (OGTT) and oral lipid tolerance test (OLTT), standard metabolic challenges in post-prandial research. Previous studies assessing metabolic risk factors associated with a disease have typically focused on information collected from individuals in a fasting state only. However, it is equally important to assess how the body responds when stressed. Employing an acute high fat or carbohydrate intake is sufficient to induce a mild stress in which time an individual's unique post-prandial response can be monitored. This study will combine traditional markers (dietary, anthropometric, lifestyle, clinical and physical activity) with nutrigenomics, a tool that attempts to describe the genome-wide influences of nutrition by examining the impact of diet on genes (genomics), mRNA (transcriptomics), proteins (proteomics) and metabolites (metabolomics).

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.
200

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

  • Ireland
      • Dublin, Ireland, 4
        • St Vincent's University Hospital
      • Dublin, Ireland, 4
        • Institute for Sport and Health, University College Dublin

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 60 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Aged 18 to 60 years
  • Not taking medication (other than contraceptive pill/HRT)
  • Irish resident and living in Dublin area

Exclusion Criteria:

  • Known chronic/infectious disease
  • Pregnancy/lactation
  • Desire to conceive or lose weight during study
  • Athlete

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: Parallel 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.
Active Comparator: OGTT-OGTT-Physical tests
2 successive Oral Glucose Tolerance Tests followed by a physical tests session
Other: Oral glucose tolerance test
75g anhydrous glucose powder mixed with 100mls water
Active Comparator: OLTT-OLTT-Physical tests
2 successive Oral Lipid Tolerance Tests followed by a physical test session
Other: Oral lipid tolerance test
150ml drink composed of 2 commercially available high fat products
Active Comparator: OGTT-OLTT-Physical tests
Oral glucose tolerance test followed by an oral lipid tolerance test (or vice-versa) followed by a physical tests session
Other: Oral glucose tolerance test
75g anhydrous glucose powder mixed with 100mls water
Other: Oral lipid tolerance test
150ml drink composed of 2 commercially available high fat products

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
Comprehensive analysis of the metabolic response to the acute ingestion of fat and glucose loads
Time Frame: 2-5 hours post test meal ingestion
2-5 hours post test meal ingestion

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.
University College Dublin

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.
  • Principal Investigator: Helen Roche, PhD, University College Dublin
  • Principal Investigator: Michael J Gibney, PhD, University College Dublin
  • Principal Investigator: Donal O'Shea, MD, St Vincent's University Hospital, Ireland
  • Principal Investigator: Eileen Gibney, PhD, University College Dublin

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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.
December 1, 2008

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.
December 1, 2010

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.
December 1, 2010

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 29, 2010

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 29, 2010

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 30, 2010

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.
January 11, 2011

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.
January 10, 2011

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.
January 1, 2011

More Information

Terms related to this study

Keywords

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.
  • LS-08-43-GR
  • DAF- HRB (Ireland) (Other Grant/Funding Number: 07FHRIUCD1)

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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