Vitamin D and Omega-3 Inhibit Metabolic Syndrome

June 12, 2013 updated by: Kelly Anne Meckling, PhD, University of Guelph

Phase 3 Study of Vitamin D and Omega-3 Supplementation to Reduce Risk of Metabolic Syndrome

The study will test the hypothesis that supplementing the diet of subjects with Metabolic Syndrome with 2000 IU vitamin D and 1.8 g omega-3 fatty acids (EPA + DHA) per day, will facilitate weight loss, improve body composition and reduce metabolic and biochemical risk factors associated with type II diabetes and cardiovascular disease. Adult men and women who meet the International Diabetes Federation criteria for Metabolic Syndrome will be enrolled and embark on a 16 week diet and exercise intervention using a low glycemic index diet with or without the supplementary vitamin D and omega-3. Subjects will be counseled weekly and blood collected at weeks 0 and 16.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

40

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Ontario
      • Guelph, Ontario, Canada, N1G2W1
        • University of Guelph

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • must have Metabolic Syndrome as defined by International Diabetes Federation
  • must be able to swallow tablets and capsules
  • must be 18 years of age or older
  • must be physically capable of moderate intensity exercise

Exclusion Criteria:

  • pregnant or lactating
  • vegetarian

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: diet only
low glycemic index diet, calorie restricted with exercise 3 times per week.
Other: low glycemic diet
a low glycemic diet, calorie restricted with exercise sessions 3 times per week
Active Comparator: supplemented
2000 IU vitamin D3 plus 1.8 g EPA + DHA
Other: low glycemic diet
a low glycemic diet, calorie restricted with exercise sessions 3 times per week
Dietary supplement: vitamin D omega-3
2000 IU vitamin D3 plus 1.8 g EPA + DHA per day for 16 weeks.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
body weight
Time Frame: up to 16 weeks
body weight will be measured to nearest 0.5 kg weekly
up to 16 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Blood pressure
Time Frame: up to 16 weeks
systolic and diastolic blood pressure will be measured in duplicate, weekly
up to 16 weeks
Blood lipids
Time Frame: up to 16 weeks
blood lipids will be measured at baseline and after study completion.
up to 16 weeks
Glucose homeostasis
Time Frame: up to 16 weeks
fasting blood glucose, insulin, HbA1c, CRP, cytokines and inflammatory markers will be measured at weeks 0 and 16 of the intervention.
up to 16 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Guelph

Investigators

  • Principal Investigator: Kelly A Meckling, PhD, University of Guelph

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2011

Primary Completion (Actual)

December 1, 2012

Study Completion (Actual)

December 1, 2012

Study Registration Dates

First Submitted

March 29, 2011

First Submitted That Met QC Criteria

March 29, 2011

First Posted (Estimate)

March 30, 2011

Study Record Updates

Last Update Posted (Estimate)

June 13, 2013

Last Update Submitted That Met QC Criteria

June 12, 2013

Last Verified

June 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2011MeckVitD

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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