CClinicalTrials.gg
CompletedNCT06822621Updated Aug 21, 2026

Functional Cereal Products and Contribution to the Regulation of Metabolism and Obesity-induced Chronic Low-grade Inflammation.

An interventional study of Control and Intervention in Hypercholesterolemia and Overweight/Obesity, sponsored by Harokopio University. Completed at 1 site in Greece. Open to participants aged 25 Years to 60 Years. Per ClinicalTrials.gov, last updated 2026-08-21.

Sponsored by Harokopio University · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Registered 4 months after the study started (first participant enrolled Sep 2024, registered Jan 2025).
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
25 Years to 60 Years
Sex
All
01

Study summary

The goal of this clinical trial is to find out the possible beneficial effects of a white wheat bread enriched with oat beta-glucans on mildly hypercholesterolemic subjects with overweight/obesity.

The main questions it aims to answer are:

Does the enriched bread lower total and LDL-cholesterol levels as well as the levels of inflammatory factors of the participants? Does the enriched bread positively change the composition of gut microbiota? Researchers will compare the enriched bread to a common white wheat bread to see if the enriched bread provides additional effect beyond a hypocaloric dietary plan that the participants of both groups are going to follow.

Participants will:

Take the enriched or the common bread every day for 8 weeks. Visit the clinic once every 2 weeks for checkups and tests.

Read the detailed description

The effect of consuming the new bread product, a white wheat bread enriched with oat beta-glucans, on metabolic and inflammatory markers after an 8-week dietary intervention in volunteers with overweight/obesity will be studied. The volunteers will be randomly divided into two groups: group 1 (control) which will receive the conventional product i.e., white wheat bread and group 2 (intervention) which will receive the beta-glucans enriched bread. Both products will be consumed in isocaloric amounts and volunteers in both groups will follow a hypocaloric diet.

The following procedures/determinations will take place at the beginning and end of the intervention:

  1. Anthropometric characteristics: weight, height, body mass index (BMI), waist circumference, hip circumference, body composition.
  2. Classical biochemical parameters: glycemic control, lipid profile, liver enzymes, urea, creatinine, uric acid.
  3. Inflammation status.
  4. Estimation of daily energy intake by completing a food consumption frequency questionnaire.
  5. Assessment of physical activity.

At the beginning and at the end of the nutritional intervention, stool collection will take place. The samples will be subjected to microbiological and molecular analysis (Next Generation Sequencing, NGS) to determine the microbial populations and the intestinal microbiome.

02

Conditions studied

  • Hypercholesterolemia
  • Overweight/Obesity

Keywords

  • hypercholesterolemia
  • bread
  • beta-glucans
  • overweight/obesity
  • gut microbiota
03

In context

Hypercholesterolemia

1,238 studies on the registry are indexed under Hypercholesterolemia; 109 are open to participants now.

This study's enrollment of 60 is below the median of 99 across 991 interventional studies indexed under Hypercholesterolemia.

Browse Hypercholesterolemia studies →

Lead sponsor

Harokopio University is the lead sponsor of 65 studies on the registry; 8 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
25 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • no underlying diseases
  • with LDL-cholesterol levels between 115-150 mg/dL
  • with 25\<BMI\<32 kg/m2
  • with stable body weight in the last 3 months before the intervention
  • with normal diet and exercise habits

Exclusion criteria

Exclusion Criteria:

  • not suffer from diabetes mellitus, cardiovascular disease, chronic renal failure
  • not receive hypolipidemic treatment
  • not receive nutritional supplements that may affect blood lipid levels (eg omega-3 supplements, plant sterols/stanols) or the intestinal microbial flora (probiotics/prebiotics/antibiotics).
  • not be pregnant or lactating
  • not have food allergies
  • not have habits that prevent their compliance with the research protocol
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
60 participants (actual)

Study arms

  • Placebo comparator
    Control group

    Dietary intervention with common white wheat bread in mildly hypercholesterolemic subjects with overweight/obesity.

    Other: Control

  • Active comparator
    Intervention group

    Dietary intervention with white wheat bread enriched with oat beta-glucans in mildly hypercholesterolemic subjects with overweight/obesity.

    Other: Intervention

Interventions

  • OtherControl

    Dietary intervention with common white wheat bread in mildly hypecholesterolemic subjects following a hypocaloric diet.

  • OtherIntervention

    Dietary intervention with white wheat bread enriched with oat beta-glucans in mildly hypecholesterolemic subjects following a hypocaloric diet.

06

What researchers measure

Primary outcomes

  1. Change of serum total- and LDL-cholesterol concentrations of study participants as determined by biochemical analysis

    Positive effect of consumption of the bread enriched with beta-gucans in the reduction of total- and LDL-cholesterol concentrations

    Time frame: From enrollment to the end of treatment at 8 weeks

Secondary outcomes

  1. Change in the composition of gut microbiota as determined by NGS analysis of fecal samples

    Positive effect of consumption of the bread enriched with beta-gucans on the composition of gut microbiota of the study participants

    Time frame: From enrollment to the end of treatment at 8 weeks.

07

Study locations

1 site
  • National and Kapodistrian University of Athens, School of Medicine
    Athens, Attica 11527, Greece
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 21, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06822621
Lead sponsor
Harokopio University
Collaborators
National and Kapodistrian University of Athens
Responsible party
Amalia Yanni (Senior Researcher, Harokopio University) — Principal investigator
First posted
Feb 12, 2025
Start date
Sep 2, 2024
Primary completion
Jun 30, 2025
Completion
Sep 30, 2025
Last update
Aug 21, 2026

Study contacts

Amalia E Yanni, Senior Researcher
principal investigator · Harokopio University
Alexandros Kokkinos, Professor
study chair · National and Kapodistrian University of Athens, School of Medicine

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2025. You cannot join it, but the record below documents what was studied.

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