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Cardiovascular DiseaseFEELGOODNCT01059760

Expression of Longevity Genes in Response to Extended Fasting

A study testing Fasting First and Fed First in people with Cardiovascular Disease, run by Intermountain Health Care, Inc. at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to evaluate the effect of fasting on physical changes associated with cardiovascular disease. Read more about this study

Who is it for?
Ages 18 to 70 yearsHealthy volunteers can take part
Conditions the study is for
Cardiovascular Disease
What is being tested?
Fasting First and Fed First
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteUnited States
Study dates
Jan 2010to Oct 2010
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • The volunteer (male or non-pregnant female, any ethnicity) must be >18 years of age.
  • The volunteer must either have a body mass index of 25.0-35.0 kg/m2 or the combination of a body mass index of 18.5-24.9 kg/m2 and two or more previously or currently measured symptoms of the metabolic syndrome (fasting glucose≥110 mg/dL, triglycerides≥150 mg/dL, high-density lipoprotein cholesterol<40 mg/dL in males or <50 mg/dL in females, systolic blood pressure≥130 mmHg or diastolic blood pressure≥85 mmHg, or waist circumference≥40 inches in males or ≥36 inches in females [glucose and cholesterol levels may be self-reported]).
  • The volunteer has not routinely participated in caloric restriction (deliberate limitation of caloric intake of <80% than the FDA-recommended daily caloric intake) within the last 2 years, has not participated in extended fasting (>12 hours at a time) for at least a year, and does not deliberately skip meals as a routine dietary practice.

Who cannot join

  • Body mass index <18.5 or >35 kg/m2.
  • Current active cancer treatment, treatment with immunosuppressive medications, or solid organ transplantation within 1 year.
  • Presence of immunosuppressive disease, myocardial infarction, peripheral vascular disease, or stroke within the past year.
  • Use of insulin.
  • Although it is unlikely fasting will harm the pregnant or lactating woman, the dietary restrictions placed on the participant for the duration of the study may conflict with dietary recommendations for pregnant or lactating women. Women of child bearing potential, therefore, will meet an exclusion if they become pregnant.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Intermountain Medical Center

    Murray, Utah, 84107-5701

Other trials in United States

About this study

The purpose of this study is to evaluate the effect of fasting on physical changes associated with cardiovascular disease.

Read the detailed description

Coronary heart disease (CHD) is the largest contributor to morbidity and mortality in the Western world and is associated with high-calorie diet, high body mass, and a variety of other factors. CHD can lead to myocardial infarction (MI) and other embolic events. A growing body of evidence suggests that relatively low caloric intake in the diets of a variety of animals increases longevity and preliminary evidence among humans indicates that such caloric restriction reduces risk factors for CHD, including cholesterol levels, blood pressure, glucose, and obesity. Caloric restriction has also been shown to alter the expression of certain genes, especially the forkhead box (FOX) O and sirtuin (SIRT) genes whose over-expression has been shown to increase longevity in animal models. Extended avoidance of caloric intake, also called fasting or short-term starvation, has been shown to increase expression of the FOXA genes that have similar sequence and function as the FOXO genes and that have been shown to increase longevity among animals regardless of FOXO function. We recently demonstrated that the risk of CHD was significantly lower among patients who reported a history of routine periodic extended fasting. The two primary hypotheses for this observation are that fasting may improve individual ability to control dietary intake or that fasting may initiate a cascade of protective mechanisms that preserve cellular and metabolic health.

Being tested
Fasting First, Fed First
Keywords
Fasting, Short-term starvation, Diet, Coronary artery disease
Medical subject headings
Cardiovascular Diseases, Fasting, Coronary Artery Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Fasting FirstBehavioural

    28±4 hours of water-only fasting followed by 28±4 hours fed

  • Fed FirstBehavioural

    28± 4 hours fed followed by 28± 4 hours of fasting

Study groups in NCT01059760
Study groupRoleWhat they receive
Fasting Day FirstOther28±4 hours of water-only fasting followed by 28±4 hours fed
Receives: Behavioral: Fasting First
Fed Day FirstOther28± 4 hours fed followed by 28± 4 hours of fasting
Receives: Behavioral: Fed First

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change From Baseline in Participant Glucose When Fasting and Fed

    Measured: Baseline and 3 days

  2. Change From Baseline in Participant Human Growth Hormone (HGH) When Fasting and Fed

    Measured: Baseline and 3 days

  3. Change From Baseline in Participant Insulin When Fasting and Fed

    Measured: Baseline and 3 days

  4. Change From Baseline in Participant Homeostasis Model Assessment-Insulin Resistance (HOMA-IR) When Fasting and Fed

    HOMA-IR is used to measure the severity of insulin resistance. Healthy Range: 1.0 (0.5-1.4) Less than 1.0 is optimal Above 1.9 indicates early insulin resistance Above 2.9 indicates significant insulin resistance

    Measured: Baseline and 3 days

  5. Change From Baseline in Participant Glycogen-Like Protein-1 (GLP-1) When Fasting and Fed

    Measured: Baseline and 3 days

  6. Change From Baseline in Participant Adiponectin When Fasting and Fed

    Measured: Baseline and 3 days

  7. Change From Baseline in Participant Fibroblast Growth Factor-21 (FGF-21) When Fasting and Fed

    Measured: Baseline and 3 days

  8. Change From Baseline in Participant White Blood Cell Count (WBC) When Fasting and Fed

    Measured: Baseline and 3 days

  9. Change From Baseline in Participant Hemoglobin When Fasting and Fed

    Measured: Baseline and 3 days

  10. Change From Baseline in Participant Red Blood Cell Count (RBC) When Fasting and Fed

    Measured: Baseline and 3 days

  11. Change From Baseline in Participant Hematocrit When Fasting and Fed

    Measured: Baseline and 3 days

  12. Change From Baseline in Participant Platelet Count When Fasting and Fed

    Measured: Baseline and 3 days

  13. Change From Baseline in Participant Mean Corpuscular Volume (MCV) When Fasting and Fed

    Measured: Baseline and 3 days

  14. Change From Baseline in Participant Mean Corpuscular Hemoglobin (MCH) When Fasting and Fed

    Measured: Baseline and 3 days

  15. Change From Baseline in Participant Mean Corpuscular Hemoglobin Concentration (MCHC) When Fasting and Fed

    Measured: Baseline and 3 days

  16. Change From Baseline in Participant Red Cell Distribution Width (RDW) When Fasting and Fed

    Measured: Baseline and 3 days

  17. Change From Baseline in Participant Mean Platelet Volume (MPV) When Fasting and Fed

    Measured: Baseline and 3 days

  18. Change From Baseline in Participant Bicarbonate When Fasting and Fed

    Measured: Baseline and 3 days

  19. Change From Baseline in Participant Sodium When Fasting and Fed

    Measured: Baseline and 3 days

  20. Change From Baseline in Participant Chloride When Fasting and Fed

    Measured: Baseline and 3 days

  21. Change From Baseline in Participant Blood Urea Nitrogen (BUN) When Fasting and Fed

    Measured: Baseline and 3 days

  22. Change From Baseline in Participant Calcium When Fasting and Fed

    Measured: Baseline and 3 days

  23. Change From Baseline in Participant Potassium When Fasting and Fed

    Measured: Baseline and 3 days

  24. Change From Baseline in Participant Creatinine When Fasting and Fed

    Measured: Baseline and 3 days

  25. Change From Baseline in Participant Total Cholesterol (TC) When Fasting and Fed

    Measured: Baseline and 3 days

  26. Change From Baseline in Participant Low-Density Lipoprotein Cholesterol (LDL-C) When Fasting and Fed

    Measured: Baseline and 3 days

  27. Change From Baseline in Participant High-Density Lipoprotein Cholesterol (HDL-C) When Fasting and Fed

    Measured: Baseline and 3 days

  28. Change From Baseline in Participant Triglycerides When Fasting and Fed

    Measured: Baseline and 3 days

  29. Change From Baseline in Participant TC/HDL Ratio When Fasting and Fed

    Measured: Baseline and 3 days

  30. Change From Baseline in Participant Weight When Fasting and Fed

    Measured: Baseline and 3 days

  31. Change From Baseline in Participant Waist Circumference When Fasting and Fed

    Measured: Baseline and 3 days

  32. Change From Baseline in Participant Systolic Blood Pressure (SBP), Supine When Fasting and Fed

    Measured: Baseline and 3 days

  33. Change From Baseline in Participant Diastolic Blood Pressure (DBP), Supine When Fasting and Fed

    Measured: Baseline and 3 days

  34. Change From Baseline in Participant High Sensitivity C-Reactive Protein (hsCRP) When Fasting and Fed

    Measured: Baseline and 3 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Feb 2010 (estimated)
  2. Study startJan 2010
  3. Primary completionAug 2010
  4. Study completionOct 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01059760
Sponsor's protocol ID
154-002
Acronym
FEELGOOD
Status last verified
Mar 2011
First submitted
28 Jan 2010
Last updated
17 Jul 2017
Data monitoring committee
No

Publications

  • Horne BD, May HT, Anderson JL, Kfoury AG, Bailey BM, McClure BS, Renlund DG, Lappe DL, Carlquist JF, Fisher PW, Pearson RR, Bair TL, Adams TD, Muhlestein JB; Intermountain Heart Collaborative Study. Usefulness of routine periodic fasting to lower risk of coronary artery disease in patients undergoing coronary angiography. Am J Cardiol. 2008 Oct 1;102(7):814-819. doi: 10.1016/j.amjcard.2008.05.021. Epub 2008 Jul 10.

    PubMed 18805103
  • Horne BD, Anderson JL, May HT, Bair TL, Le VT, Iverson L, Knowlton KU, Muhlestein JB. Weight loss-independent changes in human growth hormone during water-only fasting: a secondary evaluation of a randomized controlled trial. Front Endocrinol (Lausanne). 2025 Feb 7;15:1401780. doi: 10.3389/fendo.2024.1401780. eCollection 2024.

    PubMed 39991046
  • Allaf M, Elghazaly H, Mohamed OG, Fareen MFK, Zaman S, Salmasi AM, Tsilidis K, Dehghan A. Intermittent fasting for the prevention of cardiovascular disease. Cochrane Database Syst Rev. 2021 Jan 29;1(1):CD013496. doi: 10.1002/14651858.CD013496.pub2.

    PubMed 33512717
  • Horne BD, Muhlestein JB, Lappe DL, May HT, Carlquist JF, Galenko O, Brunisholz KD, Anderson JL. Randomized cross-over trial of short-term water-only fasting: metabolic and cardiovascular consequences. Nutr Metab Cardiovasc Dis. 2013 Nov;23(11):1050-7. doi: 10.1016/j.numecd.2012.09.007. Epub 2012 Dec 7.

    PubMed 23220077

Questions about this trial

What is this clinical trial studying?

A study testing Fasting First and Fed First in people with Cardiovascular Disease, run by Intermountain Health Care, Inc. at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 17 Jul 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 17 Jul 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change From Baseline in Participant Glucose When Fasting and Fed (time frame: Baseline and 3 days). The study lists 34 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01059760, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Jul 2017.

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