Plasma TMAO and Choline Levels in Individuals With Metabolic Syndrome - Comparison Between Eggs and Choline Supplement.

November 2, 2020 updated by: Maria Luz Fernandez, University of Connecticut

Plasma TMAO and Choline Levels in Individuals With Metabolic Syndrome - Comparison Between Eggs and Choline Supplement Intake

The objective of this study is to determine the effects of consuming either 3 eggs per day and compare it to daily choline supplement (choline bitartrate) for a dose of approximately 400 mg/day on plasma concentrations of high density lipoprotein cholesterol (HDL-c), trimethylamine N oxide (TMAO) and plasma choline. The goal is to determine if choline given as phosphatidyl choline (from eggs) will have a more beneficial effect on plasma choline and microbiota.

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

Epidemiological data suggests that egg intake does not increase the risk for cardiovascular disease (CVD). In fact eggs are a good source of phosphatidyl choline (PC) and choline has a number of metabolic roles including lipid metabolism, membrane structure, liver health and a neurotransmitter. Recent reports that choline may be metabolized by the intestinal microbiota into TMAO, a compound that may increase the risk for heart disease. It is not clear how much egg contribute to TMAO formation in individuals with metabolic syndrome.

Therefore the objective of this study is to determine the impact of daily intake of 3 eggs versus a choline supplement on plasma TMAO and other biomarkers for CVD risk and also to assess if there are changes in microbiota with these interventions that might lead to the increases of TMAO in plasma.

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.
25

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
    • Connecticut
      • Storrs, Connecticut, United States, 06269
        • University of Connecticut
      • Storrs, Connecticut, United States, 06269
        • Department of Nutritional Sciences

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

31 years to 66 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • All genders
  • 35-70 years
  • Metabolic syndrome (based on 3 out of 5 characteristics: waist circumference > 88 cm for women and > 102 cm for men, plasma triglycerides > 150 mg/dL, fasting glucose > 100 mg/dL, blood pressure > 135/85 and HDL < 40 mg/dL for men and < 50 mg/dL for women),
  • willing to consume 3 eggs per day for 4 weeks
  • willing to consume choline supplement (400 mg/day for 4 weeks)

Exclusion Criteria:

  • Self-reported diaberes, cardiovascular disease, history of stroke, liver disease or cancer
  • Taking glucose lowering medications
  • Taking antibiotics in the previous 1 month
  • Triglycerides > 500 mg/dL,
  • Cholesterol > 240 mg/dL,
  • blood pressure > 145/100 mm of Hg
  • Allergic to eggs or to choline

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: 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: Egg Intake
Consumption of 3 eggs per day for breakfast during 4 weeks
Other: Eggs
Eggs: Consume 3 eggs per day for 4 weeks Choline supplement: Consume 1.5 pills per day for 4 weeks
Other Names:
  • Dietary supplement (choline bitartrate)
Experimental: Choline Supplement Intake
Consumption of choline supplement 1.5 tablets (approx. 400 mg) with breakfast for 4 weeks
Other: Eggs
Eggs: Consume 3 eggs per day for 4 weeks Choline supplement: Consume 1.5 pills per day for 4 weeks
Other Names:
  • Dietary supplement (choline bitartrate)

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
Plasma choline and TMAO (micromol/L)
Time Frame: 1 year
They will be measured simultaneously by use of a mass spectrophotometer
1 year
Plasma lipids (total cholesterol, HDL cholesterol and triglycerides) in mg/dL
Time Frame: 1 year
They will be measured simultaneoulsy by use of an automated spectrophotometer
1 year

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
Analysis of microbiota diversity (expressed as concentrations of different microorganisms.
Time Frame: 1 year
All microorganisms are assayed simultaneously
1 year

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 of Connecticut

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.
American Egg Board

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.
November 1, 2018

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 14, 2019

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.
June 30, 2020

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).
March 13, 2019

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.
March 13, 2019

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.
March 15, 2019

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 3, 2020

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 2, 2020

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.
November 1, 2020

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.
  • H18-126

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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