The Effect of Plant Sterols on Vascular Function

NCT ID: NCT01803178

Last Updated: 2013-10-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

240 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-02-28

Study Completion Date

2013-08-31

Brief Summary

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The main aim of the study is to investigate, in humans, the effect of plant sterols on vascular function by measuring flow-mediated dilation (FMD).

This study also aims to study the effect of plant sterols on pulse wave velocity (PWV), aortic augmentation index (Aix), central blood pressure (CBP), office blood pressure (BP), blood lipids and plasma plant sterol concentration. At last, the effects of plant sterols on z-scores of circulating biomarkers of endothelial dysfunction and low-grade inflammation will be assessed.

For all study outcomes, effect sizes and 95% confidence intervals will be estimated.

Hypothesis: Based on available evidence, it is hypothesized that plant sterols modestly increase FMD.

Detailed Description

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Plant sterols are well known for their LDL-cholesterol lowering benefit. Elevated cholesterol and especially LDL-cholesterol concentrations are established risk factors for coronary heart disease (CHD) and reducing these concentrations by dietary modification or drug treatment have been shown to reduce the risk of CHD. Direct evidence supporting a reduced risk of CHD has so far not been generated. Investigating the effects of consuming plant sterols on intermediate risk factors beyond cholesterol-lowering is therefore warranted.

Conditions

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Vascular Diseases Hypercholesterolemia

Keywords

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vascular function plant sterols blood lipids

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Plant Sterols

Plant Sterols

Group Type ACTIVE_COMPARATOR

Plant Sterols

Intervention Type DIETARY_SUPPLEMENT

Placebo Product

Placebo Product

Group Type PLACEBO_COMPARATOR

Placebo Product

Intervention Type DIETARY_SUPPLEMENT

Interventions

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Plant Sterols

Intervention Type DIETARY_SUPPLEMENT

Placebo Product

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Apparently healthy men and post-menopausal women
* BMI ≥ 18 and ≤ 30 kg/m2.
* Aged between 40 - 65 years.
* Having elevated LDL-cholesterol concentrations at screening (130-190 mg/dL or 3.4-4.9 mmol/L).
* Blood pressure, heart rate, haematological and clinical chemical parameters within the normal reference range as judged by the research physician

Exclusion Criteria

* Having (previous) cardiovascular event(s) (stroke, TIA, angina, myocardial infarction, heart failure), systemic inflammatory conditions or diabetes mellitus.
* Use of over-the-counter and prescribed medication which may interfere with study measurements (i.e. statins, ezetimibe, fibrates, diabetic drugs, ARB and ACE inhibitors), to be judged by the Principal Investigator.
* Use of medical treatment for elevated TG concentrations.
* Use of antibiotics in the three months prior to screening.
* Currently smoking or being a non-smoker for less than 6 months and reported use of any nicotine containing products in the 6 months prior to screening and/or during the study.
Minimum Eligible Age

40 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Unilever R&D

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Wieneke Koppenol, MSc

Role: STUDY_DIRECTOR

Unilever Research & Development

Locations

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Charité Research Organisation

Berlin, , Germany

Site Status

Countries

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Germany

References

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Ras RT, Fuchs D, Koppenol WP, Schalkwijk CG, Otten-Hofman A, Garczarek U, Greyling A, Wagner F, Trautwein EA. Effect of a plant sterol-enriched spread on biomarkers of endothelial dysfunction and low-grade inflammation in hypercholesterolaemic subjects. J Nutr Sci. 2016 Dec 6;5:e44. doi: 10.1017/jns.2016.40. eCollection 2016.

Reference Type DERIVED
PMID: 28620471 (View on PubMed)

Ras RT, Koppenol WP, Garczarek U, Otten-Hofman A, Fuchs D, Wagner F, Trautwein EA. Increases in plasma plant sterols stabilize within four weeks of plant sterol intake and are independent of cholesterol metabolism. Nutr Metab Cardiovasc Dis. 2016 Apr;26(4):302-9. doi: 10.1016/j.numecd.2015.11.007. Epub 2015 Dec 12.

Reference Type DERIVED
PMID: 26806045 (View on PubMed)

Ras RT, Fuchs D, Koppenol WP, Garczarek U, Greyling A, Keicher C, Verhoeven C, Bouzamondo H, Wagner F, Trautwein EA. The effect of a low-fat spread with added plant sterols on vascular function markers: results of the Investigating Vascular Function Effects of Plant Sterols (INVEST) study. Am J Clin Nutr. 2015 Apr;101(4):733-41. doi: 10.3945/ajcn.114.102053.

Reference Type DERIVED
PMID: 25809853 (View on PubMed)

Other Identifiers

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FDS-SCC-0574

Identifier Type: -

Identifier Source: org_study_id