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Comparison of the Efficacy of Plant Sterol-Enriched Soymilk Versus Plain Soymilk in Volunteers With High LDL-Cholesterol (sterols)

Primary Purpose

Hypercholesterolemia

Status
Completed
Phase
Not Applicable
Locations
Thailand
Study Type
Interventional
Intervention
plant sterol and soluble fiber-enriched soymilk
soymilk
Sponsored by
Chiang Mai University
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Hypercholesterolemia

Eligibility Criteria

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

Inclusion Criteria:

  1. Healthy male or female, age > 18 years
  2. If female, subject is either post-menopausal or surgically sterilized, or has a negative urine pregnancy test within 7 days prior to enrollment and will use adequate contraception during the study
  3. Has LDL-C > 130 mg/dL
  4. If subject has been treated with cholesterol-lowering agents prior to admission, he/she must have taken medication regularly at a stable dose for at least 8 weeks
  5. Provided written informed consent prior to admission to the study.

Exclusion criteria:

  1. Has history of organ transplantation
  2. Hypersensitivity to soy bean or has specific allergy to the ingredients of soymilk
  3. Has taken any medication that affects serum cholesterol level, such as oral contraceptive pills, high dose diuretics or beta-blockers, antiretroviral protease inhibitors, tegretol, and anabolic steroids, unless these drugs have been consumed at the same dosage for > 8 weeks prior to admission of the study
  4. Has serum triglyceride ≥ 400 mg/dL
  5. Immunocompromised status, including a debilitated state or malignancy
  6. Has consumed any immunosuppressive agents such as cyclosporine, tacrolimus, azathioprine, and chemotherapeutic agents
  7. Active liver, renal or thyroid diseases
  8. Recent myocardial infarction or stroke within 3 months prior to admission
  9. Has recently been admitted in the hospital due to any illness within 2 months prior to admission
  10. Frequent alcoholic consumption > 2 a week; with beer > 360 mL, alcohol > 45 mL, wine > 150 mL for female, or beer > 720 mL, whisky > 90 mL, wine > 300 mL for male each time
  11. HasGI symptoms such as nausea, vomiting, loss of appetite, premature satiety, diarrhea, or chronic constipation
  12. Consume study product less than 90% during in treatment period
  13. Pregnancy or breast feeding woman
  14. Has previously been admitted to this study
  15. Lack of ability or willingness to give informed consent
  16. Start taking any medication that may affect serum lipid profiles or immunosuppressive agents during in the study
  17. Receiving dietary supplement with plant sterols/ stanols and/ or fiber.

Sites / Locations

  • Clinical trial Unit, Faculty of Medicine, Chiang Mai University

Arms of the Study

Arm 1

Arm 2

Arm Type

Placebo Comparator

Active Comparator

Arm Label

soymilk

sterol/fiber-enriched soymilk

Arm Description

Soymilk (SM) contained 5 gm soy protein and 6.5 gm sugar per 180 mL package.

PLant sterol and soluble fiber-enriched soymilk (SFSM) contained 1 gm free plant sterol, 5 gm inulin (soluble fiber), 5 gm soy protein and 6.5 gm sugar per 180 mL package

Outcomes

Primary Outcome Measures

the change of serum LDL-C levels between 8-week ingestion of plant sterol and soluble fiber-enriched soymilk (SFSM) versus plain soymilk (SM).
compare the change of LDL-C between those who took SFSM and those who took SM and between baseline and after 8 weeks of consumption

Secondary Outcome Measures

changes in other lipid profiles (total cholesterol, HDL-C and triglyceride)
to evaluate the change of total cholesterol, triglyceride, HDL-C, FBS between SFSM and SM group and between baseline and after 8 weeks of consumption
scale of study product satisfaction
score the product satisfaction after 2 weeks and 8 weeks consumption
evaluate any adverse events
gastrointestinal side effects of the product consumption

Full Information

First Posted
May 15, 2015
Last Updated
May 28, 2015
Sponsor
Chiang Mai University
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1. Study Identification

Unique Protocol Identification Number
NCT02459314
Brief Title
Comparison of the Efficacy of Plant Sterol-Enriched Soymilk Versus Plain Soymilk in Volunteers With High LDL-Cholesterol
Acronym
sterols
Official Title
Comparison of the Efficacy of Plant Sterol-Enriched Soymilk Versus Plain Soymilk in Volunteers With High LDL-Cholesterol
Study Type
Interventional

2. Study Status

Record Verification Date
May 2015
Overall Recruitment Status
Completed
Study Start Date
April 2013 (undefined)
Primary Completion Date
November 2013 (Actual)
Study Completion Date
April 2014 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Chiang Mai University

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This was a multicenter, prospective, randomized, double-blinded, controlled-trial study in hypercholesterolemic volunteers (serum LDL-C > 130 mg/dL). Eligible subjects were randomized to receive either plant sterol and soluble fiber-enriched soymilk or plain soymilk 360 mL/day (2 packages a day) for 8 weeks. Venous blood samples were collected from the eligible subjects during pre-treatment (screening period; day -7), every 2 week after treatment (at the end of week 2, 4, 6 and 8) to test for lipid profiles and fasting blood sugar (FBS).
Detailed Description
This was a multicenter, prospective, randomized, double-blinded, controlled-trial study in hypercholesterolemic volunteers (serum LDL-C > 130 mg/dL). After initial assessment at the screening period, eligible subjects were randomized to receive either plant sterol and soluble fiber-enriched soymilk (SFSM) or plain soymilk (SM) 360 mL/day (2 packages a day) for 8 weeks. The participants might take the study product as snack, the first one in the morning and the second one in the afternoon. It was possible to take it before or after meal, however taken before meal was highly suggested. A physical examination (including vital signs, height, weight, body mass index, waist circumference, and systemic evaluation) was performed at each visit, every 2 weeks. Concurrent medications usage were record at each visit during the study as well. Three-day per week of food intake and weekly exercises were recorded and evaluated at every visit. It was recommended every participant to follow dietary control and lifestyle modification to improve hypercholesterolemia during the entire study. Details of overall product satisfaction were evaluated by the participants after 2 and 8 weeks of study products consumption (at visit 2 and 5). To evaluate compliance, the participants were asked to collect and return the empty packages to the investigator every 2 weeks at visit 2, 3, 4, and 5. More than 90% of study product consumption would be considered as eligible on-going subjects. Venous blood samples were collected from the eligible subjects during pre-treatment (screening period; day -7), every 2 week after treatment (visit 2, 3, 4, 5; at the end of week 2, 4, 6 and 8) to test for lipid profiles and fasting blood sugar (FBS). Adverse events, if any, were recorded immediately after study enrollment.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Hypercholesterolemia

7. Study Design

Primary Purpose
Treatment
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
242 (Actual)

8. Arms, Groups, and Interventions

Arm Title
soymilk
Arm Type
Placebo Comparator
Arm Description
Soymilk (SM) contained 5 gm soy protein and 6.5 gm sugar per 180 mL package.
Arm Title
sterol/fiber-enriched soymilk
Arm Type
Active Comparator
Arm Description
PLant sterol and soluble fiber-enriched soymilk (SFSM) contained 1 gm free plant sterol, 5 gm inulin (soluble fiber), 5 gm soy protein and 6.5 gm sugar per 180 mL package
Intervention Type
Dietary Supplement
Intervention Name(s)
plant sterol and soluble fiber-enriched soymilk
Intervention Description
Sterols compete with LDL-C for absorption in GI tract. A meta-analysis of 41 trials indicated that an intake of 2 g sterols/stanols reduces the LDL-C level by 10%. Additive effects occur when sterols are combined with statins; the combination being more efficacious than a 2 times up-dosing of statins alone. Soluble dietary fibers also have significant cholesterol lowering effects. In a meta-analysis, Brown et al estimate that a daily soluble fiber intake ranging from 9-30 g/d, were associated with 10.6% reduction in LDL-C levels.
Intervention Type
Dietary Supplement
Intervention Name(s)
soymilk
Intervention Description
Soy protein is another LDL-C and total cholesterol lowering food. A meta-analysis by Reynolds K et al. discovered that volunteers receiving 20 to more than 61 g of soy protein had reductions in total cholesterol by 5.26 mg/dL (95% CI -7.14 to -3.38), and LDL-C by 4.25 mg/dL (95% CI -6.00 to -2.50), with an increase of HDL-C by 0.77 mg/dL (95% CI 0.20 to 1.34). Reductions in LDL cholesterol were larger in hypercholesterolemic than in normocholesterolemic subjects.
Primary Outcome Measure Information:
Title
the change of serum LDL-C levels between 8-week ingestion of plant sterol and soluble fiber-enriched soymilk (SFSM) versus plain soymilk (SM).
Description
compare the change of LDL-C between those who took SFSM and those who took SM and between baseline and after 8 weeks of consumption
Time Frame
8 weeks
Secondary Outcome Measure Information:
Title
changes in other lipid profiles (total cholesterol, HDL-C and triglyceride)
Description
to evaluate the change of total cholesterol, triglyceride, HDL-C, FBS between SFSM and SM group and between baseline and after 8 weeks of consumption
Time Frame
8 weeks
Title
scale of study product satisfaction
Description
score the product satisfaction after 2 weeks and 8 weeks consumption
Time Frame
8 weeks
Title
evaluate any adverse events
Description
gastrointestinal side effects of the product consumption
Time Frame
8 weeks
Other Pre-specified Outcome Measures:
Title
fasting plasma glucose (FPG)
Description
compare the FPG between SFSM and soymilk consumption in 8 weeks and compare between baseline and after 8 weeks of consumption
Time Frame
8 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Healthy male or female, age > 18 years If female, subject is either post-menopausal or surgically sterilized, or has a negative urine pregnancy test within 7 days prior to enrollment and will use adequate contraception during the study Has LDL-C > 130 mg/dL If subject has been treated with cholesterol-lowering agents prior to admission, he/she must have taken medication regularly at a stable dose for at least 8 weeks Provided written informed consent prior to admission to the study. Exclusion criteria: Has history of organ transplantation Hypersensitivity to soy bean or has specific allergy to the ingredients of soymilk Has taken any medication that affects serum cholesterol level, such as oral contraceptive pills, high dose diuretics or beta-blockers, antiretroviral protease inhibitors, tegretol, and anabolic steroids, unless these drugs have been consumed at the same dosage for > 8 weeks prior to admission of the study Has serum triglyceride ≥ 400 mg/dL Immunocompromised status, including a debilitated state or malignancy Has consumed any immunosuppressive agents such as cyclosporine, tacrolimus, azathioprine, and chemotherapeutic agents Active liver, renal or thyroid diseases Recent myocardial infarction or stroke within 3 months prior to admission Has recently been admitted in the hospital due to any illness within 2 months prior to admission Frequent alcoholic consumption > 2 a week; with beer > 360 mL, alcohol > 45 mL, wine > 150 mL for female, or beer > 720 mL, whisky > 90 mL, wine > 300 mL for male each time HasGI symptoms such as nausea, vomiting, loss of appetite, premature satiety, diarrhea, or chronic constipation Consume study product less than 90% during in treatment period Pregnancy or breast feeding woman Has previously been admitted to this study Lack of ability or willingness to give informed consent Start taking any medication that may affect serum lipid profiles or immunosuppressive agents during in the study Receiving dietary supplement with plant sterols/ stanols and/ or fiber.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Supawan Buranapin, MD
Organizational Affiliation
Faculty of Medicine, Chiang Mai University
Official's Role
Principal Investigator
Facility Information:
Facility Name
Clinical trial Unit, Faculty of Medicine, Chiang Mai University
City
Muang
State/Province
ChiangMai
ZIP/Postal Code
50200
Country
Thailand

12. IPD Sharing Statement

Learn more about this trial

Comparison of the Efficacy of Plant Sterol-Enriched Soymilk Versus Plain Soymilk in Volunteers With High LDL-Cholesterol

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