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Effects of Egg Ingestion on Endothelial Function in Adults With Coronary Artery Disease

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ClinicalTrials.gov Identifier: NCT01672567
Recruitment Status : Completed
First Posted : August 27, 2012
Last Update Posted : March 26, 2020
Sponsor:
Collaborator:
American Egg Board
Information provided by (Responsible Party):
Griffin Hospital

Tracking Information
First Submitted Date  ICMJE August 9, 2011
First Posted Date  ICMJE August 27, 2012
Last Update Posted Date March 26, 2020
Study Start Date  ICMJE October 2010
Actual Primary Completion Date April 2012   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: August 22, 2012)
Endothelial Function Flow mediated dilatation (FMD) as the percent change in brachial artery diameter from pre-cuff inflation to 60 seconds post-cuff release. [ Time Frame: 6 weeks ]
FMD will be measured as the percent change in brachial artery diameter from pre-cuff inflation to 60-seconds post-cuff release (upper arm cuff position). In addition to brachial diameter at 60 seconds post-cuff release, flow after cuff deflation within the first 15 seconds will be used as an indicator of stimulus strength, hyperemic flow being the stimulus for endothelial reactivity.
Original Primary Outcome Measures  ICMJE Same as current
Change History
Current Secondary Outcome Measures  ICMJE
 (submitted: August 22, 2012)
  • Fasting Lipid Panel - Total cholesterol, low density lipoprotein cholesterol, high density lipoprotein cholesterol, triglyceride level, cholesterol / high density lipoprotein cholesterol ratio [ Time Frame: 6 weeks ]
    Total cholesterol, low density lipoprotein cholesterol, high density lipoprotein cholesterol, triglyceride level, cholesterol / high density lipoprotein cholesterol ratio
  • 3-Day Food Diary [ Time Frame: 6 weeks ]
Original Secondary Outcome Measures  ICMJE Same as current
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE Effects of Egg Ingestion on Endothelial Function in Adults With Coronary Artery Disease
Official Title  ICMJE Effects of Egg Ingestion on Endothelial Function in Adults With Coronary Artery Disease: A Randomized, Controlled, Crossover Trial
Brief Summary The purpose of this study is to determine the effects of daily consumption of eggs or egg substitute for 6 weeks on endothelial function and on cholesterol and lipoprotein levels in participants with clinically established coronary heart disease (CHD).
Detailed Description Restriction of dietary cholesterol, and thus the avoidance or restriction of egg intake, is routinely recommended to patients with coronary disease. However, the relative importance of dietary cholesterol to serum lipids has become a subject of active debate. Eggs provide a complete array of amino acids and an array of micronutrients, and are low in total fat. Epidemiological and clinical studies have showed that dietary intake of omega-3 fatty acids decreases the risk of coronary heart disease (CHD). Endothelial function testing represents a uniquely valuable means of assessing aggregated influences on cardiac risk by gauging physiologic responses of the vascular endothelium. In prior studies the investigators have shown that daily egg ingestion for 6 weeks did not adversely affect endothelial function in healthy adults or in hyperlipidemic adults. The investigators now propose a prospective, randomized, single-blind crossover study to assess the effects of eggs, egg substitute and high-carbohydrate American breakfast on endothelial responses and serum lipids in participants with clinically established CHD.
Study Type  ICMJE Interventional
Study Phase  ICMJE Not Applicable
Study Design  ICMJE Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Single (Investigator)
Primary Purpose: Prevention
Condition  ICMJE Coronary Artery Disease
Intervention  ICMJE
  • Dietary Supplement: Egg supplementation
    Daily consumption of 2 eggs for breakfast for 6 weeks
  • Dietary Supplement: Egg substitute
    Daily consumption of 1/2 cup of Egg Beater for breakfast for 6 weeks
  • Dietary Supplement: Control diet
    Daily consumption of high carbohydrate breakfast diet for 6 weeks, consisting of any of the following choices during each day of the treatment period: bagel, waffles, pancakes, or cereal and milk
Study Arms  ICMJE
  • Experimental: Egg supplementation
    Daily consumption of 2 eggs for breakfast for 6 weeks
    Intervention: Dietary Supplement: Egg supplementation
  • Experimental: Egg substitute
    Daily consumption of 1/2 cup of Egg Beater for breakfast for 6 weeks
    Intervention: Dietary Supplement: Egg substitute
  • Experimental: Control diet
    Daily consumption of high carbohydrate breakfast diet for 6 weeks, consisting of any of the following choices during each day of the treatment period: bagel, waffles, pancakes, or cereal and milk
    Intervention: Dietary Supplement: Control diet
Publications * Katz DL, Gnanaraj J, Treu JA, Ma Y, Kavak Y, Njike VY. Effects of egg ingestion on endothelial function in adults with coronary artery disease: a randomized, controlled, crossover trial. Am Heart J. 2015 Jan;169(1):162-9. doi: 10.1016/j.ahj.2014.10.001. Epub 2014 Oct 7.

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Completed
Actual Enrollment  ICMJE
 (submitted: August 22, 2012)
34
Original Actual Enrollment  ICMJE Same as current
Actual Study Completion Date  ICMJE April 2012
Actual Primary Completion Date April 2012   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

Inclusion Criteria:

  1. Males age greater than 35 years;
  2. Post-menopausal females not currently on hormone replacement therapy;
  3. Non-smokers;
  4. CVD as defined by the presence of at least one coronary stenosis >50% determined angiographically or a documented history of myocardial infarction.

Exclusion Criteria:

  1. Failure to meet inclusion criteria;
  2. Anticipated inability to complete study protocol for any reason;
  3. Current eating disorder;
  4. Use of lipid-lowering or antihypertensive medications unless stable on medication for at least 3 months and willing to refrain from taking medication for 12 hours prior to EF scanning;
  5. Regular use of high doses of vitamin E or C;
  6. Use of insulin, glucose-sensitizing medication, vasoactive medication (including glucocorticoids, antineoplastic agents, psychoactive agents, or bronchodilators) or nutraceuticals;
  7. Regular use of fiber supplements;
  8. Diabetes;
  9. Sleep apnea;
  10. Restricted diets by choice (i.e., vegetarian, vegan);
  11. Coagulopathy, known bleeding diathesis, or history of clinically significant hemorrhage; current use of warfarin.
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 35 Years to 75 Years   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE United States
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT01672567
Other Study ID Numbers  ICMJE 2010-05
Has Data Monitoring Committee No
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Current Responsible Party Griffin Hospital
Original Responsible Party Same as current
Current Study Sponsor  ICMJE Griffin Hospital
Original Study Sponsor  ICMJE Same as current
Collaborators  ICMJE American Egg Board
Investigators  ICMJE
Principal Investigator: David L. Katz, MD, MPH Yale-Griffin Prevention Research Center
PRS Account Griffin Hospital
Verification Date March 2020

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP