search
Back to results

A Trial to Assess Full-fat or Low-fat Dairy Foods on Insulin Sensitivity, RBC FA's and Other Markers of Metabolic Health

Primary Purpose

Overweight and Obesity, Elevated Triglycerides

Status
Enrolling by invitation
Phase
Not Applicable
Locations
United States
Study Type
Interventional
Intervention
Full-fat fermented dairy
Low-fat fermented dairy
Non-dairy, non-fermented foods
Sponsored by
Midwest Center for Metabolic and Cardiovascular Research
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Overweight and Obesity

Eligibility Criteria

18 Years - 74 Years (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  1. Subject is 18-74 years of age, inclusive.
  2. Subject has a BMI of 25.00 kg/m2 to 39.99 kg/m2 at screening (visit 1b).
  3. Subject has a fasting TG level ≥135 mg/dL at screening (visit 1a), or a fasting TG level 122-134 mg/dL (inclusive) and a fasting venous TG level of ≥135 mg/dL at screening (visits 1a and 1b, respectively).
  4. Subject has a rating of 7 to 10 on the Vein Access Scale at screening (visit 1b; Appendix 2).
  5. Subject is judged by the Investigator to be in general good health on the basis of medical history and screening laboratory tests.
  6. Subject is willing to maintain usual physical activity pattern throughout the study and is willing to refrain from vigorous physical activity for 24 h prior to each clinic visit.
  7. Subject has no plans to change smoking habits during the study and is willing to abstain from tobacco products and caffeine use 1 h prior to and during each clinic visit.
  8. Subject is willing to refrain from using marijuana and consuming alcoholic beverages for 24 h prior to each clinic visit.
  9. Subject is willing to consume study-related foods and follow the dietary instructions throughout the 12-week treatment period.
  10. Subject is willing to come to the clinic for study food pick-up(s) if needed.
  11. Subject understands the study procedures and signs forms documenting informed consent to participate in the study and authorization for release of relevant protected health information to the study Investigator and is willing to complete study procedures.

Exclusion Criteria:

  1. Subject has a laboratory test result of clinical significance at screening (visit 1b).
  2. Subject has fasting blood glucose ≥126 mg/dL at screening (visit 1a) or known type 1 or type 2 diabetes mellitus.
  3. Subject has atherosclerotic cardiovascular disease including any of the following: clinical signs of atherosclerosis including peripheral arterial disease, abdominal aortic aneurysm, carotid artery disease [symptomatic (e.g., myocardial infarction, angina, transient ischemic attack or stroke of carotid origin) or >50% stenosis on angiography or ultrasound] or other forms of clinical atherosclerotic disease (e.g., renal artery disease).
  4. Subject has a history or presence of a clinically important medical condition that, in the opinion of the investigator, could interfere with the interpretation of the study results.
  5. Subject has uncontrolled hypertension (systolic blood pressure ≥160 mm Hg or diastolic blood pressure ≥100 mm Hg) at screening (visit 1b).
  6. Subject has a history of cancer in the prior 5 years, except for non-melanoma skin cancer or carcinoma in situ of the cervix.
  7. Subject has experienced a change in body weight of ±4.5 kg (10 pounds) over the 3 months prior to screening (visit 1b).
  8. Subject has unstable use (initiation or dose alteration) of any antihypertensive medication within 4 weeks prior to screening (visit 1b).
  9. Subject has unstable use (initiation or dose alteration) of any of the following lipid-altering medications within 4 weeks prior to screening (visit 1b): statins, ezetimibe, bempedoic acid, bile acid sequestrants, fibrates, niacin (drug form), and/or omega-3 fatty acid drugs.
  10. Subject has unstable use (initiation or dose alteration) of a proprotein convertase subtilisin kexin type 9 (PCSK9) inhibitor within 3 months of screening (visit 1b).
  11. Subject has unstable use (initiation or dose alteration) of weight-loss drugs (including over-the-counter medications and/or supplements) and/or systemic corticosteroid drugs within 4 weeks of screening (visit 1b).
  12. Subject has unstable use (initiation or dose alteration) of medications known to influence carbohydrate metabolism, including, but not limited to: adrenergic receptor blockers, thiazide diuretics, hypoglycemic medications, and/or antipsychotics within 4 weeks prior to screening (visit 1b).
  13. Subject has an active infection or has used antibiotics within 5 d of any clinic visit. Those with an active infection and/or using antibiotics must wait at least 5 d after the infection resolves or antibiotic use is complete. The test period will be extended for completion in these cases.
  14. Subject has a known allergy, sensitivity, or intolerance to any ingredients in the study foods. Mild lactose intolerance is not exclusionary.
  15. Subject is a female, who is pregnant, planning to be pregnant during the study period, lactating, or is of childbearing potential and is unwilling to commit to the use of a medically approved form of contraception throughout the study period.
  16. Subject has extreme dietary habits (e.g., vegan or very low carbohydrate diet).
  17. Subject has a current or recent history (past 12 months), or strong potential, for drug or alcohol abuse. Alcohol abuse is defined as >14 drinks per week (1 drink = 12 oz beer, 5 oz wine, or 1 ½ oz distilled spirits).
  18. Subject has a history of a diagnosed eating disorder (e.g., anorexia nervosa or bulimia nervosa).
  19. Subject has been exposed to any non-registered drug product within 30 d of screening (visit 1b).
  20. Subject has a condition the Investigator believes would interfere with his or her ability to provide informed consent or comply with the study protocol, or which might confound the interpretation of the study results or put the person at undue risk.

Sites / Locations

  • Illinois Institute of Technology
  • Great Lakes Clinical Trials
  • Great Lakes Clinical Trials

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Active Comparator

Placebo Comparator

Arm Label

Full-fat fermented dairy

Low-fat fermented dairy

Non-dairy, non-fermented foods

Arm Description

1 serving per day of full-fat yogurt and full-fat fermented cheese

1 serving per day of low-fat yogurt and lower-fat fermented cheese (e.g., reduced-fat or low-fat fermented cheese).

2 servings per day of nondairy, nonfermented foods with a macronutrient composition that is similar to that of the low-fat fermented dairy condition.

Outcomes

Primary Outcome Measures

Insulin Sensitivity
The percent change from baseline to the end of treatment at 12 weeks in the Matsuda index

Secondary Outcome Measures

Carbohydrate metabolism variables
Changes or percent changes from baseline to the end of treatment of fasting glucose and insulin, liquid meal tolerance test (LMTT) disposition index and homeostasis model assessments of pancreatic beta-cell function (HOMA2%B) and insulin sensitivity (HOMA2%S).
Lipid variables
Changes or percent changes from baseline to end of treatment of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), non-high-density lipoprotein cholesterol (non-HDL-C), HDL-C, TG; lipoprotein particle concentrations and subfractions.
Erythrocyte
Changes or percent changes from baseline to the end of treatment of Erythrocyte 15:0, 17:0 and 1-16:1n-7 content (expressed as % of total fatty acids)
High-sensitivity C-reactive proten (hs-CRP)
Changes or percent changes from baseline to the end of treatment
Waist circumference
Changes or percent changes from baseline to the end of treatment
Seated, resting systolic and diastolic blood pressures and heart rate
Changes or percent changes from baseline to the end of treatment
Alternate Healthy Eating Index
Changes or percent changes from baseline to the end of treatment

Full Information

First Posted
July 20, 2021
Last Updated
July 18, 2023
Sponsor
Midwest Center for Metabolic and Cardiovascular Research
Collaborators
National Dairy Council
search

1. Study Identification

Unique Protocol Identification Number
NCT04999462
Brief Title
A Trial to Assess Full-fat or Low-fat Dairy Foods on Insulin Sensitivity, RBC FA's and Other Markers of Metabolic Health
Official Title
A Randomized, Parallel Trial to Assess the Effects of Replacing Non-fermented, Non-dairy Foods With Full-fat or Low-fat Fermented Dairy Foods on Insulin Sensitivity, RBC FA's and Other Markers of Cardiometabolic Health
Study Type
Interventional

2. Study Status

Record Verification Date
July 2023
Overall Recruitment Status
Enrolling by invitation
Study Start Date
September 15, 2021 (Actual)
Primary Completion Date
November 2023 (Anticipated)
Study Completion Date
November 2023 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Midwest Center for Metabolic and Cardiovascular Research
Collaborators
National Dairy Council

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
No

5. Study Description

Brief Summary
The objectives of this trial are to assess the effects of adding 2 servings/d of either full-fat or low-fat fermented dairy products to the diet, as a replacement for non-dairy foods with macronutrient composition similar to the low-fat fermented dairy condition, on insulin sensitivity, erythrocyte fatty acid profile and other cardiometabolic health markers in metabolically at-risk adults.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Overweight and Obesity, Elevated Triglycerides

7. Study Design

Primary Purpose
Prevention
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
138 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Full-fat fermented dairy
Arm Type
Experimental
Arm Description
1 serving per day of full-fat yogurt and full-fat fermented cheese
Arm Title
Low-fat fermented dairy
Arm Type
Active Comparator
Arm Description
1 serving per day of low-fat yogurt and lower-fat fermented cheese (e.g., reduced-fat or low-fat fermented cheese).
Arm Title
Non-dairy, non-fermented foods
Arm Type
Placebo Comparator
Arm Description
2 servings per day of nondairy, nonfermented foods with a macronutrient composition that is similar to that of the low-fat fermented dairy condition.
Intervention Type
Other
Intervention Name(s)
Full-fat fermented dairy
Intervention Description
Subjects assigned to the full-fat fermented dairy condition will consume 1 serving/d each of full-fat yogurt (plain or reduced sugar varieties) and full-fat fermented cheese.
Intervention Type
Other
Intervention Name(s)
Low-fat fermented dairy
Intervention Description
Subjects assigned to the low-fat fermented dairy condition will consume 1 serving/d each of low-fat yogurt (plain or reduced sugar varieties) and lower-fat fermented cheese (e.g., reduced-fat or low-fat fermented cheese).
Intervention Type
Other
Intervention Name(s)
Non-dairy, non-fermented foods
Intervention Description
Subjects assigned to the control condition will consume 2 servings/d of nondairy, nonfermented foods with a macronutrient composition that is similar to that of the low-fat fermented dairy condition.
Primary Outcome Measure Information:
Title
Insulin Sensitivity
Description
The percent change from baseline to the end of treatment at 12 weeks in the Matsuda index
Time Frame
12 weeks
Secondary Outcome Measure Information:
Title
Carbohydrate metabolism variables
Description
Changes or percent changes from baseline to the end of treatment of fasting glucose and insulin, liquid meal tolerance test (LMTT) disposition index and homeostasis model assessments of pancreatic beta-cell function (HOMA2%B) and insulin sensitivity (HOMA2%S).
Time Frame
12 weeks
Title
Lipid variables
Description
Changes or percent changes from baseline to end of treatment of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), non-high-density lipoprotein cholesterol (non-HDL-C), HDL-C, TG; lipoprotein particle concentrations and subfractions.
Time Frame
12 weeks
Title
Erythrocyte
Description
Changes or percent changes from baseline to the end of treatment of Erythrocyte 15:0, 17:0 and 1-16:1n-7 content (expressed as % of total fatty acids)
Time Frame
12 weeks
Title
High-sensitivity C-reactive proten (hs-CRP)
Description
Changes or percent changes from baseline to the end of treatment
Time Frame
12 weeks
Title
Waist circumference
Description
Changes or percent changes from baseline to the end of treatment
Time Frame
12 weeks
Title
Seated, resting systolic and diastolic blood pressures and heart rate
Description
Changes or percent changes from baseline to the end of treatment
Time Frame
12 weeks
Title
Alternate Healthy Eating Index
Description
Changes or percent changes from baseline to the end of treatment
Time Frame
12 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
74 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Subject is 18-74 years of age, inclusive. Subject has a BMI of 25.00 kg/m2 to 39.99 kg/m2 at screening (visit 1b). Subject has a fasting TG level ≥135 mg/dL at screening (visit 1a), or a fasting TG level 122-134 mg/dL (inclusive) and a fasting venous TG level of ≥135 mg/dL at screening (visits 1a and 1b, respectively). Subject has a rating of 7 to 10 on the Vein Access Scale at screening (visit 1b; Appendix 2). Subject is judged by the Investigator to be in general good health on the basis of medical history and screening laboratory tests. Subject is willing to maintain usual physical activity pattern throughout the study and is willing to refrain from vigorous physical activity for 24 h prior to each clinic visit. Subject has no plans to change smoking habits during the study and is willing to abstain from tobacco products and caffeine use 1 h prior to and during each clinic visit. Subject is willing to refrain from using marijuana and consuming alcoholic beverages for 24 h prior to each clinic visit. Subject is willing to consume study-related foods and follow the dietary instructions throughout the 12-week treatment period. Subject is willing to come to the clinic for study food pick-up(s) if needed. Subject understands the study procedures and signs forms documenting informed consent to participate in the study and authorization for release of relevant protected health information to the study Investigator and is willing to complete study procedures. Exclusion Criteria: Subject has a laboratory test result of clinical significance at screening (visit 1b). Subject has fasting blood glucose ≥126 mg/dL at screening (visit 1a) or known type 1 or type 2 diabetes mellitus. Subject has atherosclerotic cardiovascular disease including any of the following: clinical signs of atherosclerosis including peripheral arterial disease, abdominal aortic aneurysm, carotid artery disease [symptomatic (e.g., myocardial infarction, angina, transient ischemic attack or stroke of carotid origin) or >50% stenosis on angiography or ultrasound] or other forms of clinical atherosclerotic disease (e.g., renal artery disease). Subject has a history or presence of a clinically important medical condition that, in the opinion of the investigator, could interfere with the interpretation of the study results. Subject has uncontrolled hypertension (systolic blood pressure ≥160 mm Hg or diastolic blood pressure ≥100 mm Hg) at screening (visit 1b). Subject has a history of cancer in the prior 5 years, except for non-melanoma skin cancer or carcinoma in situ of the cervix. Subject has experienced a change in body weight of ±4.5 kg (10 pounds) over the 3 months prior to screening (visit 1b). Subject has unstable use (initiation or dose alteration) of any antihypertensive medication within 4 weeks prior to screening (visit 1b). Subject has unstable use (initiation or dose alteration) of any of the following lipid-altering medications within 4 weeks prior to screening (visit 1b): statins, ezetimibe, bempedoic acid, bile acid sequestrants, fibrates, niacin (drug form), and/or omega-3 fatty acid drugs. Subject has unstable use (initiation or dose alteration) of a proprotein convertase subtilisin kexin type 9 (PCSK9) inhibitor within 3 months of screening (visit 1b). Subject has unstable use (initiation or dose alteration) of weight-loss drugs (including over-the-counter medications and/or supplements) and/or systemic corticosteroid drugs within 4 weeks of screening (visit 1b). Subject has unstable use (initiation or dose alteration) of medications known to influence carbohydrate metabolism, including, but not limited to: adrenergic receptor blockers, thiazide diuretics, hypoglycemic medications, and/or antipsychotics within 4 weeks prior to screening (visit 1b). Subject has an active infection or has used antibiotics within 5 d of any clinic visit. Those with an active infection and/or using antibiotics must wait at least 5 d after the infection resolves or antibiotic use is complete. The test period will be extended for completion in these cases. Subject has a known allergy, sensitivity, or intolerance to any ingredients in the study foods. Mild lactose intolerance is not exclusionary. Subject is a female, who is pregnant, planning to be pregnant during the study period, lactating, or is of childbearing potential and is unwilling to commit to the use of a medically approved form of contraception throughout the study period. Subject has extreme dietary habits (e.g., vegan or very low carbohydrate diet). Subject has a current or recent history (past 12 months), or strong potential, for drug or alcohol abuse. Alcohol abuse is defined as >14 drinks per week (1 drink = 12 oz beer, 5 oz wine, or 1 ½ oz distilled spirits). Subject has a history of a diagnosed eating disorder (e.g., anorexia nervosa or bulimia nervosa). Subject has been exposed to any non-registered drug product within 30 d of screening (visit 1b). Subject has a condition the Investigator believes would interfere with his or her ability to provide informed consent or comply with the study protocol, or which might confound the interpretation of the study results or put the person at undue risk.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Kevin Maki, PhD
Organizational Affiliation
MB Clinical Research & Consulting, LLC
Official's Role
Study Director
Facility Information:
Facility Name
Illinois Institute of Technology
City
Chicago
State/Province
Illinois
ZIP/Postal Code
60616
Country
United States
Facility Name
Great Lakes Clinical Trials
City
Chicago
State/Province
Illinois
ZIP/Postal Code
60640
Country
United States
Facility Name
Great Lakes Clinical Trials
City
Gurnee
State/Province
Illinois
ZIP/Postal Code
60031
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
No

Learn more about this trial

A Trial to Assess Full-fat or Low-fat Dairy Foods on Insulin Sensitivity, RBC FA's and Other Markers of Metabolic Health

We'll reach out to this number within 24 hrs