Effects of Bilberry and Oat Intake After Type 2 Diabetes and/or MI

NCT ID: NCT03620266

Last Updated: 2025-07-24

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

RECRUITING

Clinical Phase

NA

Total Enrollment

900 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-09-30

Study Completion Date

2025-12-31

Brief Summary

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Background:

Bilberries from Sweden, rich in polyphenols, have shown cholesterol-lowering effects in small studies, and the cholesterol-lowering properties of oats, with abundant beta-glucans and potentially bioactive phytochemicals, are well established. Both may provide cardiometabolic benefits for patients with manifest chronic cardiometabolic disease, such as type 2 diabets mellitus (T2DM) and myocardial infarction (MI). However, large studies of adequate statistical power and appropriate duration are needed to confirm clinically relevant treatment effects. No previous study has evaluated the potential additive or synergistic effects of bilberry combined with oats on cardiometabolic risk factors.

Design:

This is a double-blind, randomized, placebo-controlled clinical trial. Our primary objective is to assess cardioprotective effects of diet supplementation with dried bilberry and with bioprocessed oat bran, with a secondary explorative objective of assessing their combination, compared with a neutral isocaloric reference supplement, for patients diagnosed with T2DM and/or MI. Patients will be randomized 1:1:1:1 to a three-month intervention. The primary endpoint is the difference in LDL cholesterol change between the intervention groups after three months. The major secondary endpoint is exercise capacity at three months. Other secondary endpoints include plasma concentrations of biochemical markers of inflammation, glycaemia, and gut microbiota composition after three months.

Implications:

Secondary prevention after cardiometabolic disease, including T2DM and MI, has improved during the last decades but diabetes complications, readmissions and cadiovascular related deaths following these conditions remain large health care challenges. Controlling hyperlipidemia, hyperglycaemia, hypertension and inflammation is critical to preventing (new) cardiovascular events, but novel pharmacological treatments for these conditions are expensive and associated with negative side effects. If bilberry and/or oat, in addition to standard medical therapy, can lower LDL cholesterol and inflammation more than standard therapy alone, this could be a cost-effective and safe dietary strategy for secondary prevention in high-risk patients or risk prevention in subjects with T2DM.

Detailed Description

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Conditions

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Myocardial Infarction

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Bilberry

Dietary supplement with bilberry shakes 2 times daily for 3 months (containing in total 40g of dried bilberry powder equalling 480 g of fresh berries per day). Product development in collaboration with Glucanova AB.

Group Type EXPERIMENTAL

Bilberry

Intervention Type DIETARY_SUPPLEMENT

The dietary intervention will continued for three months. After randomization, participants will be given bilberry shakes (active), liquid oat shakes (active), a combination shake with bilberry and oats, or reference shakes (placebo product containing no active bilberry or active oats but with similar taste and texture as both oat and bilberry), for intake two times a day (t.i.d). The formula for the shakes to be used in the intervention will be finalized during the initial project period.

Reference/Placebo

Dietary supplement with reference shakes 2 times daily for 3 months (containing no active bilberry or no active oats, but with similar texture and taste as both bilberry and oat). Product development in collaboration with Glucanova AB.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DIETARY_SUPPLEMENT

The dietary intervention will be continued for three months. After randomization, participants will be given bilberry shakes (active), liquid oat shakes (active), a combination shake with bilberry and oats, or reference shakes (placebo product containing no active bilberry or active oats but with similar taste and texture), for intake two times a day (t.i.d). The formula for the shakes to be used in the intervention will be finalized during the initial project period.

Bioprocessed oat bran

Dietary supplement with bioprocessed oat bran shakes 2 times daily for 3 months (containing beta glucans from the Glucanova® technology, invented by Glucanova AB).Product development in collaboration with Glucanova AB.

Group Type EXPERIMENTAL

Bioprocessed oat bran

Intervention Type DIETARY_SUPPLEMENT

The dietary intervention will be continued for three months. After randomization, participants will be given bilberry shakes (active), liquid oat shakes (active), a combination shake with bilberry and oats, or reference shakes (placebo product containing no active bilberry or active oats but with similar taste and texture), for intake two times a day (t.i.d). The formula for the shakes to be used in the intervention will be finalized during the initial project period.

Combination of oat and bilberry

Dietary supplement with a combination of bioprocessed oat bran and dried bilberry (shakes) 2 times daily for 3 months. Product development in collaboration with Glucanova AB.

Group Type EXPERIMENTAL

Combination bilberry/oats

Intervention Type DIETARY_SUPPLEMENT

The dietary intervention will be continued for three months. After randomization, participants will be given bilberry shakes (active), liquid oat shakes (active), a combination shake with bilberry and oats, or reference shakes (placebo product containing no active bilberry or active oats but with similar taste and texture), for intake two times a day (t.i.d). The formula for the shakes to be used in the intervention will be finalized during the initial project period.

Interventions

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Bilberry

The dietary intervention will continued for three months. After randomization, participants will be given bilberry shakes (active), liquid oat shakes (active), a combination shake with bilberry and oats, or reference shakes (placebo product containing no active bilberry or active oats but with similar taste and texture as both oat and bilberry), for intake two times a day (t.i.d). The formula for the shakes to be used in the intervention will be finalized during the initial project period.

Intervention Type DIETARY_SUPPLEMENT

Placebo

The dietary intervention will be continued for three months. After randomization, participants will be given bilberry shakes (active), liquid oat shakes (active), a combination shake with bilberry and oats, or reference shakes (placebo product containing no active bilberry or active oats but with similar taste and texture), for intake two times a day (t.i.d). The formula for the shakes to be used in the intervention will be finalized during the initial project period.

Intervention Type DIETARY_SUPPLEMENT

Bioprocessed oat bran

The dietary intervention will be continued for three months. After randomization, participants will be given bilberry shakes (active), liquid oat shakes (active), a combination shake with bilberry and oats, or reference shakes (placebo product containing no active bilberry or active oats but with similar taste and texture), for intake two times a day (t.i.d). The formula for the shakes to be used in the intervention will be finalized during the initial project period.

Intervention Type DIETARY_SUPPLEMENT

Combination bilberry/oats

The dietary intervention will be continued for three months. After randomization, participants will be given bilberry shakes (active), liquid oat shakes (active), a combination shake with bilberry and oats, or reference shakes (placebo product containing no active bilberry or active oats but with similar taste and texture), for intake two times a day (t.i.d). The formula for the shakes to be used in the intervention will be finalized during the initial project period.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Confirmed T2DM diagnosis (any treatment modality accepted) and/or within 3 years post STEMI or NSTEMI
* Completed coronary angiography/PCI
* Male and female subjects ≥18 years
* Allocated to atorvastatin at a daily dose of 80 mg (only eligible for patients enrolled up to 7 days post MI and not for T2D subjects)
* Written informed consent

Exclusion Criteria

* Emergency coronary artery bypass grafting
* \<18 years of age
* LDL cholesterol \<2.0 mmol/L
* Daily intake or the intent to initiate daily intake of bilberry in any form or daily intake of \>15 g of oatmeal or equivalent
* Food allergy/intolerance to gluten, bilberries or legumes
* Previous randomization in the BioDiaMI trial
* Inability to provide informed consent
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Region Västmanland

OTHER

Sponsor Role collaborator

Region Skane

OTHER

Sponsor Role collaborator

Chalmers University of Technology

OTHER

Sponsor Role collaborator

Värmland County Council, Sweden

OTHER_GOV

Sponsor Role collaborator

Vastra Gotaland Region

OTHER_GOV

Sponsor Role collaborator

Aarhus University Hospital

OTHER

Sponsor Role collaborator

Odense University Hospital

OTHER

Sponsor Role collaborator

Falu Hospital

OTHER

Sponsor Role collaborator

Ole Frobert, MD, PhD

OTHER

Sponsor Role lead

Responsible Party

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Ole Frobert, MD, PhD

Professor

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Ole Frobert, Prof

Role: STUDY_DIRECTOR

Department of Cardiology, Örebro Univerity Hospital, 701 85 Örebro, Sweden

Cecilia Bergh, PhD

Role: PRINCIPAL_INVESTIGATOR

Clinical Epidemiology and Biostatistics, School of medical Sciences, örebro University, Sweden

Locations

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Steno Diabetes center

Aarhus, , Denmark

Site Status NOT_YET_RECRUITING

Odense University Hospital

Odense, , Denmark

Site Status RECRUITING

Falu lasarett

Falun, , Sweden

Site Status NOT_YET_RECRUITING

Sahlgrenska Universitetssjukhuset

Gothenburg, , Sweden

Site Status RECRUITING

Karlstad general hospital

Karlstad, , Sweden

Site Status RECRUITING

Department of Cardiology, Skånes universitetssjukhus

Lund, , Sweden

Site Status RECRUITING

Department of Cardiology, Örebro University Hospital

Örebro, , Sweden

Site Status RECRUITING

Cardiology Clinic, Västmanlands sjukhus

Västerås, , Sweden

Site Status RECRUITING

Countries

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Denmark Sweden

Central Contacts

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Ole Frobert, Prof

Role: CONTACT

+46 19 602 543

Cecilia Bergh, PhD

Role: CONTACT

+46 730 68 28 92

Facility Contacts

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Sören Gregersen, Prof

Role: primary

Mona El Faramawi, MD

Role: primary

Kristina Hambreaus, MD

Role: primary

Carlo Pirazzi, MD, PhD

Role: primary

Payam Khalili, MD, PhD

Role: primary

David Ehrlinge, prof

Role: primary

tel:+46 46 17 25 97

Ole Frobert, prof

Role: primary

+46 19 602 54 13

Cecilia Bergh, PhD

Role: backup

+46 730 68 28 92

Amra Kåregren, MD

Role: primary

+46 21 17 52 04

References

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Bergh C, Landberg R, Andersson K, Heyman-Linden L, Rascon A, Magnuson A, Khalili P, Karegren A, Nilsson J, Pirazzi C, Erlinge D, Frobert O. Effects of Bilberry and Oat intake on lipids, inflammation and exercise capacity after Acute Myocardial Infarction (BIOAMI): study protocol for a randomized, double-blind, placebo-controlled trial. Trials. 2021 May 10;22(1):338. doi: 10.1186/s13063-021-05287-5.

Reference Type DERIVED
PMID: 33971938 (View on PubMed)

Other Identifiers

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BioDiaMI

Identifier Type: -

Identifier Source: org_study_id

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