CClinicalTrials.gg
CompletedNCT06152835Updated Sep 1, 2026

The BuKoBc Project: Building a Deeper Knowledge on Breast Milk Composition

An observational study in Breastfeeding, sponsored by Federico II University. Completed at 1 site in Italy. Open to female participants aged 20 Years to 40 Years. Per ClinicalTrials.gov, last updated 2026-09-01.

Sponsored by Federico II University · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
100
Ages
20 Years to 40 Years
Sex
Female
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Study summary

Breast milk is considered the gold standard for infant nutrition thanks to its ability to provide adequate nutrition and a high amount of protective factors for the baby's health. According to the guidelines of the World Health Organization (WHO), exclusive feeding with breast milk should be conducted until the end of 6 months of life and should be continued in the following months with the simultaneous introduction of complementary foods. Several evidence demonstrates that breast milk intake is associated with positive health outcomes, both during infancy and later in the life. Given the protective role of breast milk for the health of the child and the future adult, studying its content is of fundamental importance to have an integrated vision of the biological effects of its components on the child health, and of the factors that are able to modulate its composition. The "Building a Deeper Knowledge on Breast Milk Composition" (BuKoBc) project was designed to study the content of human milk in its entirety and at different times during the feeding and day, also in relation to environmental factors capable of modulating its composition. The results of this study may provide data on optimal reference ranges for nutrient intake in breastfed infants and may provide guidance for defining optimal nutrient intake for infants who cannot be breastfed. Furthermore, the in-depth study of the environmental factors capable of influencing the composition of breast milk will allow the development of nutritional intervention strategies for the breastfeeding mother in order to positively modulate the composition of her milk.

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Conditions studied

  • Breastfeeding

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03

In context

Breast Feeding

262 studies on the registry are indexed under Breast Feeding; 112 are open to participants now.

This study's enrollment of 100 is below the median of 177 across 48 observational studies indexed under Breast Feeding.

Browse Breast Feeding studies →

Lead sponsor

Federico II University is the lead sponsor of 356 studies on the registry; 60 are open to participants now.

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

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Who can participate

Ages eligible
20 Years to 40 Years
Sexes eligible
Female
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

100 Italian women, aged 20-40 years, who breastfed children born at full term, observed at the specialist pediatric clinics of the "Federico II" University Hospital of Naples, of the "La Sapienza University of Rome", of the "La Statale University of Milan", the "University of Pisa" and the "University of Verona".

Inclusion criteria

  • Italian women aged between 20 and 40 years who exclusively breastfeed children born at term from normal pregnancy
  • Written informed consent

Exclusion criteria

Exclusion Criteria:

  • Non-Italian women;
  • Age \<20 and >40 years;
  • Mothers of children born preterm;
  • Non-exclusive breastfeeding;
  • Mothers suffering from chronic diseases:
  • malignancies;
  • immunodeficiencies;
  • chronic infections;
  • autoimmune diseases;
  • chronic inflammatory intestinal diseases;
  • celiac disease;
  • genetic-metabolic diseases;
  • cystic fibrosis;
  • chronic lung diseases;
  • malformations of the cardiovascular/respiratory/gastrointestinal system;
  • neuropsychiatric disorders;
  • neurological diseases.
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
100 participants (actual)
Patient registry
No

Groups and cohorts

  • Breastfeeding Italian women

    Italian women, aged 20-40 years who breastfeed children born at full term

    Other: Data and breast milk samples collection

Interventions

  • OtherData and breast milk samples collection

    Breast milk samples and, clinical, anamnestic and lifestyle data collection

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What researchers measure

Primary outcomes

  1. To analyze the contents of breast milk completely and at different times during the feeding and during the day.

    6 milk samples of at least 5 ml each will be collected at the beginning and end of the morning feeding, at the beginning and end of the afternoon feeding, and at the beginning and end of the evening feeding.

    Time frame: 36 months

  2. Nutritional composition analysis (macro and micronutrients)

    Mass spectrometry analyzes will be performed.

    Time frame: 36 months

  3. Metagenomic analysis

    Shotgun analysis will be performed.

    Time frame: 36 months

  4. Metabolomics analysis

    Mass spectrometry analyzes will be performed.

    Time frame: 36 months

  5. MicroRNA analysis

    TaqMan MicroRNA Assays will be adopted.

    Time frame: 36 months

  6. Compounds derived from ultraprocessed foods and from packaging analyses

    Mass spectrometry analyzes will be performed.

    Time frame: 36 months

Secondary outcomes

  1. To analyze the environmental factors capable of modulating the composition of breast milk

    Maternal energy and nutrient intake, maternal ultra-processed food intake, level of adherence to the Mediterranean Diet, nutritional status, body composition, lifestyle, level of physical activity, level of education, intake of medications, food supplements, prebiotics, probiotics and synbiotics, consumption of alcohol, caffeine and tobacco will be evaluated.

    Time frame: 36 months

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Study locations

1 site
  • Department of Traslational Medical Science - University of Naples Federico II
    Naples, Naples 80131, Italy
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 1, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06152835
Lead sponsor
Federico II University
Responsible party
Roberto Berni Canani, MD, PhD (Medical Doctor, PhD, Professor, Federico II University) — Principal investigator
First posted
Dec 1, 2023
Start date
Jul 24, 2023
Primary completion
Jul 24, 2026
Completion
Jul 24, 2026
Last update
Sep 1, 2026

Oversight

FDA-regulated drug
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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