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A Human Trial to Assess the Low Density Lipoprotein Cholesterol (LDL-C) Lowering Effect of Soy (SOY-LDL)

Primary Purpose

Hypercholesterolemia, Cardiovascular Disease, CRP

Status
Completed
Phase
Not Applicable
Locations
Canada
Study Type
Interventional
Intervention
Standardized soy containing muffin
Sponsored by
Guelph Food Research Centre
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional basic science trial for Hypercholesterolemia focused on measuring Cholesterol, Cardiovascular disease, Soy, Dose-response

Eligibility Criteria

30 Years - 70 Years (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • Males and females (not pregnant or lactating) aged 30-70 year
  • Body mass index (BMI) ≤40kg/m² and ≥18.5kg/m²
  • Fasting plasma total cholesterol ≥5.0
  • Fasting plasma LDL cholesterol ≥3.0 and <5.0 mmol/L.

Exclusion Criteria:

  • Fasting plasma triglycerides ≥4.0 mmol/L
  • Abnormal liver and kidney function
  • Unstable body weight(>3kg change in 3 months) or intention to lose or gain weight;
  • Diabetes mellitus (fasting plasma glucose ≥7.0 mmol/L or use of insulin or any hypoglycemic or anti-hyperglycemic medication);
  • Use of any prescription or non-prescription drug, prebiotics or probiotics, herbal or nutritional supplement known to affect blood lipids, except for stable doses (no change in 3 months) of thyroxine, oral contraceptive agents, hormone replacement therapy, and medications for controlling blood pressure);
  • Major surgical or medical events within the past 3 months;
  • Presence of a gastrointestinal disorder or medication that alters the digestion and absorption of nutrients; including antibiotic use within the past 6 weeks.
  • Consumption of a diet containing ≥15% of energy from saturated fat;
  • Any food allergy or aversion or unwillingness to eat wheat, soy or milk;
  • Consumption of ≥5 servings per week of soy based food products;
  • Consumption of an average of >2 alcoholic beverages per day;
  • Regular smokers (smoking ≥1 cigarette per day) of cigarettes or cigars

Sites / Locations

  • Canadian Centre for Agri-food Research in Health and Medicine
  • Human Nutraceutical Research Unit. University of Guelph
  • Glycemic Index Laboratories, Inc

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Placebo Comparator

Experimental

Experimental

Arm Label

Control

Low Dose Soy

High Dose Soy

Arm Description

- Isocaloric control muffins

- Isocaloric muffins containing low dose of soy

- Isocaloric muffins containing high dose soy

Outcomes

Primary Outcome Measures

Low Density Lipoprotein Cholesterol (LDL-Cholesterol)

Secondary Outcome Measures

high sensitivity c-reactive protein (hsCRP)

Full Information

First Posted
March 5, 2012
Last Updated
March 10, 2015
Sponsor
Guelph Food Research Centre
Collaborators
University of Guelph, Glycemic Index Laboratories, Inc, Canadian Centre for Agri-Food Research in Health and Medicine
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1. Study Identification

Unique Protocol Identification Number
NCT01547585
Brief Title
A Human Trial to Assess the Low Density Lipoprotein Cholesterol (LDL-C) Lowering Effect of Soy
Acronym
SOY-LDL
Official Title
A Randomized Controlled Trial to Determine the Low Density Lipoprotein Cholesterol (LDL-C) Lowering Effect of Whole Soy: a Dose Response Study
Study Type
Interventional

2. Study Status

Record Verification Date
March 2015
Overall Recruitment Status
Completed
Study Start Date
May 2012 (undefined)
Primary Completion Date
September 2013 (Actual)
Study Completion Date
October 2013 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Guelph Food Research Centre
Collaborators
University of Guelph, Glycemic Index Laboratories, Inc, Canadian Centre for Agri-Food Research in Health and Medicine

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
This study is being conducted to test the hypothesis that daily consumption of a baked food product containing whole soy for 6 weeks will significantly reduce plasma Low Density Lipoprotein Cholesterol (LDL-C) in individuals with hypercholesterolemia. As such the overall goals of this study are to determine whether daily consumption of muffins made from whole soy flour for 6 weeks can lower plasma LDL-Cholesterol, and if so, establish whether the effect is dose-dependent. To do this, study collaborators will: (1) conduct a detailed chemical and physical characterization of certified defatted whole soy flour that will be incorporated into a muffin; (2) formulate and produce a palatable whole soy flour muffin along with a control muffin containing wheat flour; (3) conduct a parallel controlled trial in which soy muffins will be fed randomly to persons with elevated LDL-cholesterol in a human clinical trial. All participants will be randomized into one of three groups and asked to eat two muffins daily for 6 weeks in the following combination: high dose soy; control group or low dose soy. Before, after, and mid-way during the feeding period, blood samples will be obtained for measurements of lipids, glucose, insulin, inflammation, and soy phytochemicals. The effect of soy consumption on waist circumference, body mass index (BMI) and blood pressure will also be examined.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Hypercholesterolemia, Cardiovascular Disease, CRP
Keywords
Cholesterol, Cardiovascular disease, Soy, Dose-response

7. Study Design

Primary Purpose
Basic Science
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
243 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Control
Arm Type
Placebo Comparator
Arm Description
- Isocaloric control muffins
Arm Title
Low Dose Soy
Arm Type
Experimental
Arm Description
- Isocaloric muffins containing low dose of soy
Arm Title
High Dose Soy
Arm Type
Experimental
Arm Description
- Isocaloric muffins containing high dose soy
Intervention Type
Other
Intervention Name(s)
Standardized soy containing muffin
Other Intervention Name(s)
Soy containing muffins
Intervention Description
Standardized muffin containing two levels of soy
Primary Outcome Measure Information:
Title
Low Density Lipoprotein Cholesterol (LDL-Cholesterol)
Time Frame
6 weeks
Secondary Outcome Measure Information:
Title
high sensitivity c-reactive protein (hsCRP)
Time Frame
6 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
30 Years
Maximum Age & Unit of Time
70 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Males and females (not pregnant or lactating) aged 30-70 year Body mass index (BMI) ≤40kg/m² and ≥18.5kg/m² Fasting plasma total cholesterol ≥5.0 Fasting plasma LDL cholesterol ≥3.0 and <5.0 mmol/L. Exclusion Criteria: Fasting plasma triglycerides ≥4.0 mmol/L Abnormal liver and kidney function Unstable body weight(>3kg change in 3 months) or intention to lose or gain weight; Diabetes mellitus (fasting plasma glucose ≥7.0 mmol/L or use of insulin or any hypoglycemic or anti-hyperglycemic medication); Use of any prescription or non-prescription drug, prebiotics or probiotics, herbal or nutritional supplement known to affect blood lipids, except for stable doses (no change in 3 months) of thyroxine, oral contraceptive agents, hormone replacement therapy, and medications for controlling blood pressure); Major surgical or medical events within the past 3 months; Presence of a gastrointestinal disorder or medication that alters the digestion and absorption of nutrients; including antibiotic use within the past 6 weeks. Consumption of a diet containing ≥15% of energy from saturated fat; Any food allergy or aversion or unwillingness to eat wheat, soy or milk; Consumption of ≥5 servings per week of soy based food products; Consumption of an average of >2 alcoholic beverages per day; Regular smokers (smoking ≥1 cigarette per day) of cigarettes or cigars
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Alison Duncan, PhD, RD
Organizational Affiliation
University of Guelph
Official's Role
Principal Investigator
First Name & Middle Initial & Last Name & Degree
Thomas Wolever, MD, PhD
Organizational Affiliation
Glycemic Index Laboratories, Inc
Official's Role
Principal Investigator
First Name & Middle Initial & Last Name & Degree
Heather Blewett, PhD
Organizational Affiliation
Canadian Centre for Agri-Food Research in Health and Medicine
Official's Role
Principal Investigator
Facility Information:
Facility Name
Canadian Centre for Agri-food Research in Health and Medicine
City
Winnipeg
State/Province
Manitoba
ZIP/Postal Code
R2H 2A6
Country
Canada
Facility Name
Human Nutraceutical Research Unit. University of Guelph
City
Guelph
State/Province
Ontario
ZIP/Postal Code
N1G 2W1
Country
Canada
Facility Name
Glycemic Index Laboratories, Inc
City
Toronto
State/Province
Ontario
ZIP/Postal Code
M5C 2N8
Country
Canada

12. IPD Sharing Statement

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derived

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A Human Trial to Assess the Low Density Lipoprotein Cholesterol (LDL-C) Lowering Effect of Soy

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