ClinicalTrials.gg
CompletedNCT07786675MEDKIDSUpdated Aug 26, 2026

MEDKIDS: Nutritional Intervention With Improved Bread and Bakery Products in Children With Overweight and Obesity

An interventional study of Nutritionally improved bread and bakery products and Conventional bread and bakery products in Pediatric Obesity, sponsored by Consorcio Centro de Investigación Biomédica en Red (CIBER). Completed at 1 site in Spain. Open to participants aged 6 Years to 12 Years. Per ClinicalTrials.gov, last updated 2026-08-26.

Sponsored by Consorcio Centro de Investigación Biomédica en Red (CIBER) · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 4 years 5 months after the study started (first participant enrolled Oct 2021, registered Mar 2026).
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
6 Years to 12 Years
Sex
All
01

Study summary

The goal of this randomized crossover clinical trial is to evaluate the effect of an intervention with nutritionally improved bread and bakery products on body composition and metabolic health in children aged 6 to 12 years with overweight or obesity.

Read the detailed description

The main questions it aims to answer are:

  • Does consumption of reformulated bread and bakery products improve body composition compared to conventional products?
  • Does the intervention improve lipid profile, inflammatory markers, gastrointestinal satiety-related peptides, and gut microbiota composition?

Researchers will compare conventional bakery products with reformulated products developed within the MEDKIDS project to determine their effects on anthropometric parameters, blood biomarkers, satiety, and intestinal microbiota.

Participants will:

  • Follow a Mediterranean diet-based nutritional intervention with a 20% energy restriction adapted individually
  • Consume either conventional or reformulated bread and bakery products during two 8-week intervention periods separated by a 5-week washout
  • Undergo anthropometric assessments and blood, urine, and stool sample collection at the beginning and end of each period
02

Conditions studied

  • Pediatric Obesity

Keywords

  • mediterranean diet
  • dietary intervention
  • bakery products
  • whole grain
  • childhood obesity
  • gut microbiota
  • inflammation
  • lipid profile
  • satiety
03

In context

Pediatric Obesity

1,129 studies on the registry are indexed under Pediatric Obesity; 187 are open to participants now.

This study's enrollment of 60 is below the median of 100 across 870 interventional studies indexed under Pediatric Obesity.

Browse Pediatric Obesity studies →

Lead sponsor

Consorcio Centro de Investigación Biomédica en Red (CIBER) is the lead sponsor of 18 studies on the registry; 6 are open to participants now.

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

04

Who can participate

Ages eligible
6 Years to 12 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Children aged 6 to 12 years.
  • Overweight or obesity defined according to Cole et al. criteria.
  • Willingness and commitment to consume the study bread and bakery products as part of the nutritional intervention.
  • Written provided by a parent or legal guardian.

Exclusion criteria

Exclusion Criteria:

  • Diagnosed disorders related to glucose metabolism (e.g., diabetes mellitus).
  • Celiac disease.
  • Gastrointestinal disorders, including inflammatory bowel disease.
  • Current medical or pharmacological treatment that may interfere with the study outcomes.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
60 participants (actual)

Study arms

  • Experimental
    Nutritionally improved bread and bakery products

    Participants consume nutritionally improved bread and bakery products developed within the MEDKIDS project during one 8-week period as part of a randomized crossover clinical trial, with their habitual diet.

    Other: Nutritionally improved bread and bakery products

  • Active comparator
    Conventional bread and bakery products

    Participants consume conventional bread and bakery products used as reference products during one 8-week period within a randomized crossover clinical trial, with their habitual diet.

    Other: Conventional bread and bakery products

Interventions

  • OtherNutritionally improved bread and bakery products

    Reformulated bread and bakery products developed within the MEDKIDS project with improved nutritional profile, including reduced saturated fat and free sugars and increased dietary fiber content compared to conventional products.

    Also known as: Intervention group

  • OtherConventional bread and bakery products

    Conventional bread and bakery products

    Also known as: Control group

06

What researchers measure

Primary outcomes

  1. Changes in body weight

    Change in body weight using bioelectrical impedance analysis with Tanita BC 780 MA scale. Unit of measure: kg

    Time frame: Baseline and end of each 8-week intervention period

  2. Change in height

    Change in height measured using a Seca 225 precision stadiometer according to standardized anthropometric procedures. Unit of measure: cm

    Time frame: Baseline and end of each 8-week intervention period

  3. Change in body mass index

    Change in body mass index calculated from body weight and height. Unir of measure: kg/m².

    Time frame: Baseline and end of each 8-week intervention period

  4. Change in body fat mass

    Change in body fat mass using bioelectrical impedance analysis with a Tanita BC 780 MA scale. Unit of measure: kg

    Time frame: Baseline and end of each 8-week intervention period

  5. Change in lean body mass

    Change in lean body mass using bioelectrical impedance analysis with a Tanita BC 780 MA scale. Unit of measure: Kg.

    Time frame: Baseline and end of each 8-week intervention period

  6. Change in total body water

    Change in total body water measured using bioelectrical impedance analysis with a Tanita BC 780 MA scale. Unir of measure: %

    Time frame: Baseline and end of each 8-week intervention period

  7. Changes in triceps and subscapular skinfold thickness

    Change in triceps and subscapular skinfold thickness measured in millimeters using a Holtain skinfold caliper according to standardized anthropometric procedures and International Society for the Advancement of Kinanthropometry (ISAK) recommendations. Three measurements will be performed.

    Time frame: Baseline and end of each 8-week intervention period

  8. Changes in blood biochemical, lipid and inflammatory parameters

    Changes in blood chemical, lipid, and inflammatory parameters measured from fasting blood samples. Biochemical parameters include glucose, total proteins, calcium, iron, and zinc concentrations. Lipid parameters include total cholesterol, HDL cholesterol, LDL cholesterol triglycerides, apolipoprotein A1, and apolipoprotein B. Inflammatory parameters include C-reactive protein (CRP), tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), interleukin-10 (IL-10), complement component 3 (C3), and complement component 4 (C4).

    Time frame: Baseline and end of each 8-week intervention period

  9. Changes in gut microbiota composition and diversity

    Changes in gut microbiota composition and diversity assessed from stool samples using metagenomic analysis following consumption of nutritionally improved versus conventional bread and bakery products.

    Time frame: Baseline and end of each 8-week intervention period

  10. Changes in satiety-related measures

    Changes in circulating satiety-related gastrointestinal hormones measured from fasting blood samples. Gastrointestinal hormones include insulin, leptin, ghrelin, glucose-dependent insulinotropic polypeptide (GIP), pancreatic polypeptide (PP), and glucagon-like peptide-1 (GLP-1).

    Time frame: Baseline and end of each 8-week intervention period

  11. Change in arm, waist and hip circumference

    Change in arm, waist and hip circumference circumference measured in centimeters using a measuring tape according to standardized anthropometric procedures and International Society for the Advancement of Kinanthropometry (ISAK) recommendations. Three measurements will be performed.

    Time frame: Baseline and end of each 8-week intervention period

Secondary outcomes

  1. Changes in sensory acceptability

    Changes in sensory acceptability assessed in the applied nutrition sensometry substudy using a nine-point hedonic scale. Participants rated the pleasantness of three characteristic aromas (chocolate, grass, and n-butanol) under standardized conditions after consumption of a standardized breakfast. Participants also indicated whether each aroma was familiar and completed an exploratory assessment of mood and emotions before and after food consumption using emoticons.

    Time frame: Baseline and week 8

07

Study locations

1 site
  • Growth, Exercise, Nutrition and Development (GENUD) Research Group - University of Zaragoza
    Zaragoza, Zaragoza 50009, Spain
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Oct 2021 to primary completion in Nov 2022, 13 months.

Of 539 non-industry interventional studies with no phase under Pediatric Obesity, half reached primary completion within 25 months of starting (the median), counting those still running; a quarter within 11 and three quarters within 45. This study's 13 months is below that.

Counting every sponsor, half of 541 studies reached it within 25 months; a quarter within 11 and three quarters within 45.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 25, 2026
First posted
Aug 26, 2026
StartActual
Oct 1, 2021
Primary completionActual
Nov 30, 2022
CompletionActual
Mar 31, 2023
Last update
Aug 26, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 26, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07786675
Lead sponsor
Consorcio Centro de Investigación Biomédica en Red (CIBER)
Responsible party
Sponsor
First posted
Aug 26, 2026
Start date
Oct 1, 2021
Primary completion
Nov 30, 2022
Completion
Mar 31, 2023
Last update
Aug 26, 2026

Study contacts

Luis A Moreno
principal investigator · Growth, Exercise, Nutrition and Development (GENUD) Research Group, University of Zaragoza (Spain)

Oversight

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

Not currently enrolling

This study is completed, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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