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Completed

NCT Number: NCT04673721

PROSPective Evaluation of Fortified Eggs Related to Improvement in The Biomarker Profile for Your Health

The objective of the study is to assess the effect of fortified eggs (compared to a non-egg supplemented diet) and intermittent fasting (IF) (compared to a usual care diet) on biomarker profile at 4 months. This will be a 140-participant, 2x2 factorial, randomized clinical trial comparing fortified eggs vs. a non-egg supplemented diet and IF vs. usual care diet through 4 months. Participants will be randomized 1:1:1:1 to the four treatment groups. Participants will have in-person follow-up visits at 1- and 4- months (inclusive of laboratory assessments) in addition to telephone calls at months 2 and 3. A subset of patients (~24 in each egg randomized strata) will undergo microbiome assessment at baseline and at 4 months.

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Key information

Age range

50 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Duke University Health System

Durham, North Carolina, 27710, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • ≥ 50 years of age AND
  • At least one of the following two criteria:
  • Prior cardiovascular event (myocardial infarction, coronary revascularization or ischemic stroke) OR
  • 2 cardiovascular risk factors including: 1) Diabetes mellitus (Defined as taking a medication for diabetes OR HgbA1c ≥6.5% within the prior 18 months; patients with diabetes may be treated with medications that are not associated with hypoglycemia such as metformin, thiazolidinediones (TZDs), glucagon-like peptide-1 receptor agonists (GLP-1 RAs), sodium glucose co-transporter 2 (SGLT2) inhibitors and/or dipeptidyl peptidase-4 (DPP-4) inhibitors, 2) Body mass index (BMI) ≥ 30 kg/m2, 3) Hypertension (Defined as taking blood pressure lowering medications OR systolic BP > 140mmHg at screening OR diastolic BP > 90mmHg at screening), 4) Dyslipidemia (Defined as taking lipid lowering medication OR LDL ≥130 OR HDL <50 for women OR HDL <40 for men OR triglycerides ≥150), or 5) Chronic kidney disease (Defined as eGFR <60 on most recent laboratory assessment within prior 18 months)
  • Signed informed consent

Exclusion criteria

  • Known allergy or intolerance to eggs
  • Patients with diabetes who are on insulin or insulin secretagogues (e.g., sulfonylureas and meglitinides)
  • Recent cardiovascular event (MI, stroke, HF hospitalization) within the past 30 days
  • Planned initiation/change in lipid therapy within the next 4 months
  • Current daily use of any supplements or multivitamins containing Vitamin B2 (riboflavin), Vitamin B12, Vitamin D, Vitamin E, or selenium or planned initiation within the next 4 months (current users need a 1-month washout period off supplement prior to eligibility)
  • Inability or unwillingness to comply with the study requirements
  • History of heart transplant or left ventricular assist device
  • Pregnant or nursing women
  • Malignancy or other non-cardiac condition limiting life expectancy to <4 months
  • Consumption of > 2 eggs per week (this does not include eggs contained within other foods)
  • Ongoing or recent (prior 30 days) participation in another interventional study

Treatment and study plan

Fortified eggs

Dietary Supplement

Average 12 eggs consumed per week

Intermittent fasting

Behavioral

16-hour fast and then an 8-hour nutritional window with aim for energy needs to be consumed during an 8 hour eating window (e.g., 11 am - 7 pm) with fasting for 16 hours (e.g., 7 pm - 11 am the next day).

Non-egg supplemented

Dietary Supplement

2 or less eggs consumed per week

Usual care diet

Behavioral

Consistency with current diet without consideration of intermittent fasting

Primary outcomes

  1. Change in LDL-cholesterol

    Time frame: Baseline, 4 months

  2. Change in HDL-cholesterol

    Time frame: Baseline, 4 months

Secondary outcomes

  1. Change in total cholesterol

    Time frame: Baseline, 4 months

  2. Change in triglycerides

    Time frame: Baseline, 4 months

  3. Change in NMP LipoProfile

    Time frame: Baseline, 4 months

  4. Change in lipoprotein subfractionation

    Time frame: Baseline, 4 months

  5. Change in apolipoprotein B

    Time frame: Baseline, 4 months

  6. Change in fatty acid profile

    Time frame: Baseline, 4 months

  7. Change in Vitamin B2 level

    Time frame: Baseline, 4 months

  8. Change in Vitamin B12 level

    Time frame: Baseline, 4 months

  9. Change in Vitamin D level

    Time frame: Baseline, 4 months

  10. Change in Vitamin E level

    Time frame: Baseline, 4 months

  11. Change in selenium level

    Time frame: Baseline, 4 months

  12. Change in high-sensitivity troponin (hsTroponin)

    Time frame: Baseline, 4 months

  13. Change in high-sensitivity c-reactive protein (hsCRP)

    Time frame: Baseline, 4 months

  14. Change in hemoglobin A1c (HbA1c)

    Time frame: Baseline, 4 months

  15. Change in insulin resistance score (LP-IR)

    Time frame: Baseline, 4 months

Other outcomes

  1. Change in weight

    Time frame: Baseline, 4 months

  2. Change in blood pressure

    Time frame: Baseline, 4 months

    Both systolic and diastolic blood pressure will be assessed

  3. Change in Dietary intake (2005-Block Questionnaire)

    Time frame: Baseline, 4 months

  4. Change in microbiome profile

    Time frame: Baseline through 4 months

Sponsors and collaborators

Lead sponsor

Duke University

Other

Collaborators

  • Eggland's Best

Registry information

Acronym: PROSPERITY

Important dates

Study start
2021
Primary completion
2022
Study completion
2022
First posted
Dec 17, 2020
Registry last updated
Jan 23, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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