The Effects of Apple Derived Flavanols on Cardiovascular Disease Risk (FLAVASCULAR Study)

NCT ID: NCT02013856

Last Updated: 2016-12-02

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

42 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-07-31

Study Completion Date

2016-10-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Fruit and vegetable rich diets are associated with a reduced risk of cardiovascular disease (CVD). The protective effect may be ascribed to compounds contained within these foods, called flavonoids. Flavanols (epicatechin and procyanidins) are a particular group of flavonoids and are found mostly in apples, berry fruits, dark chocolate, tea and red wine. There is evidence to suggest that ingestion of flavanol rich foods and beverages beneficially alter 'markers' of CVD risk (e.g. blood pressure). The aim of this study is to determine the acute and chronic effects of apple derived flavanols on some risk markers for CVD.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

This study is a single arm randomized, 4-phase crossover design.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Blood Pressure

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Low Epicatechin and procyanidin

Low epicatechin and procyanidin doses

Group Type EXPERIMENTAL

Low Epicatechin and procyanidin

Intervention Type DIETARY_SUPPLEMENT

70 mg epicatechin and 65 mg procyanidins once daily for 28 days

High Epicatechin and procyanidin

High epicatechin and procyanidin doses

Group Type EXPERIMENTAL

High Epicatechin and procyanidin

Intervention Type DIETARY_SUPPLEMENT

140 mg epicatechin and 130 mg procyanidins once daily for 28 days

High Procyanidin

High procyanidin only

Group Type EXPERIMENTAL

High procyanidin

Intervention Type DIETARY_SUPPLEMENT

No epicatechin and 130 mg procyanidins once daily for 28 days

Placebo

No epicatechin and procyanidin

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DIETARY_SUPPLEMENT

Placebo control once daily for 28 days

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Low Epicatechin and procyanidin

70 mg epicatechin and 65 mg procyanidins once daily for 28 days

Intervention Type DIETARY_SUPPLEMENT

High Epicatechin and procyanidin

140 mg epicatechin and 130 mg procyanidins once daily for 28 days

Intervention Type DIETARY_SUPPLEMENT

High procyanidin

No epicatechin and 130 mg procyanidins once daily for 28 days

Intervention Type DIETARY_SUPPLEMENT

Placebo

Placebo control once daily for 28 days

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Men and women ≥ 50 years of age
* Systolic blood pressure 130 - 159 mmHg

Exclusion Criteria

* History of cardiovascular events such as stroke, myocardial infarction trans- ischaemic attacks or peripheral vascular disease
* Kidney or liver disease/problems
* Diabetes
* Asthmatics (unless no medication taken for 1 year - occasional use will be assessed on an individual basis)
* Prescribed anti-hypertensive medication
* HRT (unless the participant has used the therapy for ≥ 6 months)
* Lipid lowering therapies e.g. statins
* Other medications that may affect any of the study outcome measures e.g. vasodilators (this will be assessed on a case by case basis)
* Current smoker (or stopped for less than 3 months)
* Throat surgery or neck injury
* Allergy to apples
* Consumption of fish oil supplements unless willing to discontinue them up for 4 weeks preceding the start of the study and for the duration of the study. (All other supplements will be assessed on a case by case basis)
* Gastro-intestinal diseases (excluding hiatus hernia unless symptomatic or study intervention/procedure is contra-indicated).
* Parallel participation in another research project which involves dietary intervention
* Participation in another research project which has involved blood sampling within the last four months unless the total amount of combined blood from both studies does not exceed 470 ml.
* Has donated or intends to donate blood within 16 weeks prior to or during the study period.
* Depressed or elevated blood pressure measurements (\<90/50 or 95/55 if symptomatic or \>160/100 (mmHg)) during the course of the trial.
Minimum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Quadram Institute Bioscience

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Paul Dr Kroon, PhD

Role: PRINCIPAL_INVESTIGATOR

Quadram Institute Bioscience

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Institute of Food Research

Norwich, Norfolk, United Kingdom

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United Kingdom

References

Explore related publications, articles, or registry entries linked to this study.

Hollands WJ, Tapp H, Defernez M, Perez Moral N, Winterbone MS, Philo M, Lucey AJ, Kiely ME, Kroon PA. Lack of acute or chronic effects of epicatechin-rich and procyanidin-rich apple extracts on blood pressure and cardiometabolic biomarkers in adults with moderately elevated blood pressure: a randomized, placebo-controlled crossover trial. Am J Clin Nutr. 2018 Nov 1;108(5):1006-1014. doi: 10.1093/ajcn/nqy139.

Reference Type DERIVED
PMID: 30475960 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

IFR05/2013

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Impact of Oranges on Cardiovascular Health
NCT01935362 COMPLETED PHASE1/PHASE2