NCT02610322

Brief Summary

Project title: A randomized controlled trial of whole soy diet in place of red/processed meat and high fat dairy products on metabolic features in postmenopausal women Objectives: Metabolic syndrome (MetS) is an escalating public health problem especially in postmenopausal women. Traditional whole soy foods are rich in unsaturated fats, high quality plant protein and various bioactive phytochemicals that could benefit on MetS. The aim of the study is to examine the effect of whole soy replacement diet on the features of MetS among postmenopausal women. Hypothesis to be tested: Whole soy diet in place of red or processed meat and high fat dairy products will significantly improve metabolic features. Design and subjects: This will be a 12-month randomized, single-blind, controlled trial among 208 postmenopausal women with high risk of MetS or early MetS. Study instruments: After 4 weeks' run-in, participants will be randomly allocated to either of two intervention groups, whole soy replacement group or control group, each for 6 months. Interventions: Subjects in whole soy group will be required to include 4 servings of whole soy foods (containing 25g soy protein) into their daily diet isocalorically replacing red or processed meat and high fat dairy products. Subjects in the control group will remain an usual diet. Main outcome measures: The outcome measures will include the indices of metabolic features as well as a 10-year risk for ischemic cardiovascular disease. Data analysis: The changes and %change of the metabolic features at 6- and 12-month will be compared among the two groups. Expected results: Whole soy diet substitution of high saturated fat and cholesterol rich animal products will notably decrease the risk of MetS.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
208

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jun 2016

Typical duration for not_applicable

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 18, 2015

Completed
2 days until next milestone

First Posted

Study publicly available on registry

November 20, 2015

Completed
6 months until next milestone

Study Start

First participant enrolled

June 1, 2016

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2017

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2018

Completed
Last Updated

November 20, 2015

Status Verified

November 1, 2015

Enrollment Period

1.5 years

First QC Date

November 18, 2015

Last Update Submit

November 19, 2015

Conditions

Outcome Measures

Primary Outcomes (1)

  • Changes of metabolic components of MetS (body weight, waist circumference, blood pressure, serum lipids and fasting glucose).

    Will be measured at baseline, 6-month and 12-month after intervention.

Secondary Outcomes (1)

  • Changes of 10-year risk for ischemic cardiovascular disease (ICVD)

    Will be assessed at baseline and 12-month after intervention.

Study Arms (2)

Whole soy group

EXPERIMENTAL

Whole soy replacement diet: to incorporate 4 servings of whole soy foods (equivalent to 25g soy protein) into their daily diet and reduce high saturated fat and cholesterol rich animal foods.

Behavioral: Whole soy replacement diet

Control group

PLACEBO COMPARATOR

Usual diet: to receive a conventional lifestyle education on MetS.

Behavioral: usual diet

Interventions

Participants who are allocated to Whole soy group will receive a 30\~40 min counseling session by an experienced nutritionist on: 1) conventional lifestyle education on metabolic syndrome (MetS); 2) The benefits of whole soy diet; 2) Practical techniques to incorporate of 4 servings of whole soy foods (equivalent to 25g soy protein) into their daily diet and reduce high saturated fat and cholesterol rich animal foods based on their prior 7-day dietary record during run-in; (3) Participants will also receive a pamphlet and an 30 min DVD which will provide practical cooking recipes with both illustration and demonstration on how to prepare whole soy foods/diet in an easy and fun way to replace fatty animal meat and dairy products

Whole soy group
usual dietBEHAVIORAL

Participants who are assigned to the usual diet group (control group) will receive a 5\~10 min conventional lifestyle education on MetS by a research staff in which the general recommendation for macronutrient composition of the control diet will be 50-60% of energy as carbohydrate, 15-20% of energy as protein, and \<30% of energy as total fat.

Control group

Eligibility Criteria

Age45 Years - 70 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Postmenopausal women aged 45\~70y within 15 years after menopause;
  • Participants who meet 2 or more of the following items:
  • waist circumference WC ≥80 cm;
  • triglyceride concentration ≥1.7 mmol/l;
  • HDL-c \<50 mg/dl (1.29 mmol/l);
  • SBP/DBP ≥130/85 mm Hg;
  • fasting glucose ≥5.6 mmol/l.

You may not qualify if:

  • On use of medications known to affect body weight, lipids and glucose within past 3-month;
  • Medical history or presence of severe systemic or endocrine diseases;
  • Present or history of breast, endometrial or ovarian cancer;
  • Abnormal uterine bleeding after menopause;
  • On prescribed or vegetarian diet;
  • Known soy allergy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Liu ZM, Ho S, Hao YT, Chen YM, Woo J, Wong SY, He Q, Xie YJ, Tse LA, Chen B, Su XF, Lao XQ, Wong C, Chan R, Ling WH. Randomised controlled trial of effect of whole soy replacement diet on features of metabolic syndrome in postmenopausal women: study protocol. BMJ Open. 2016 Sep 27;6(9):e012741. doi: 10.1136/bmjopen-2016-012741.

MeSH Terms

Conditions

Metabolic Syndrome

Condition Hierarchy (Ancestors)

Insulin ResistanceHyperinsulinismGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic Diseases

Central Study Contacts

Zhao-min Liu, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Research Assistant Professor

Study Record Dates

First Submitted

November 18, 2015

First Posted

November 20, 2015

Study Start

June 1, 2016

Primary Completion

December 1, 2017

Study Completion

December 1, 2018

Last Updated

November 20, 2015

Record last verified: 2015-11