CClinicalTrials.gg
RecruitingNCT06833554PI2222/01813Updated Feb 18, 2025

The Role of Breast Milk Neutrophils From Mothers With Metabolic Diseases After Nutritional Intervention. Impact on Infant Development and Response to Pulmonary Infections

An interventional study of Omega-3 Fatty Acids (EPA plus DHA) and Placebo in Gestational Diabetes Mellitus (GDM), sponsored by Fundación Pública Andaluza para la Investigación de Málaga en Biomedicina y Salud. Recruiting at 1 site in Spain. Open to female participants aged 18 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-02-18.

Sponsored by Fundación Pública Andaluza para la Investigación de Málaga en Biomedicina y Salud · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Primary completion was expected by Jul 2025, 1 year 2 months ago, but the record still lists the study as recruiting.
  • Registered 2 years 1 month after the study started (first participant enrolled Jan 2023, registered Feb 2025).
  • Started Jan 2023; still recruiting 3 years 9 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
80
Allocation
Randomized
Ages
18 Years to 50 Years
Sex
Female
01

Study summary

This project aims at identifying variations in breast milk neutrophils among lactating mothers with gestational diabetes or obesity (objective 1), and to describe how a dietary intervention with Omega-3 fatty acids affects these changes (objective 2). The occurrence of respiratory infections on the progeny will be analysed, as well as its development and the impact on gut microbiota and epigenetic changes (objective 3). The involvement of breast milk on the neonate's microbiota (sub-objective 1) and epigenetic variations (sub-objective 2) will be depicted. In addition, the direct engagement of milk neutrophils in the ability of the progeny to react against lung infections will be studied (sub-objective 3).

To attain these mother milk and blood samples will be obtained from three groups of lactating mothers: control, obesity or gestational diabetes, upon a dietary intervention with Omega-3 fatty acids. Neutrophil populations of maternal blood and milk samples will be studied by flow cytometry and in vitro assays. The microbiome and miRNA content of infant's saliva and tool samples will be characterized by 16s rRNA gene sequencing and PCR. The occurrence of respiratory infections and the development the infants participating in the study will be tracked during the first 2 years of life by telephone surveys.

To study the impact of the presented maternal variables on the progeny upon a respiratory inflammation on a systemic level, mouse models will be employed. The offspring of lactating dams with gestational diabetes or obesity will be subjected to an artificial acute lung infection. The progression of the lung disease will be studied by histology and the neutrophil profile in the organs of the litter by flow cytometry. The response to acute lung injury after fecal transplantation with infant's microbiota intro germ-free mice as well as of wild type pups breastfeed by neutropenic dams will complement the animal studies.

02

Conditions studied

  • Gestational Diabetes Mellitus (GDM)
03

In context

Diabetes, Gestational

842 studies on the registry are indexed under Diabetes, Gestational; 199 are open to participants now.

This study's planned enrollment of 80 is below the median of 110 across 549 interventional studies indexed under Diabetes, Gestational.

Browse Diabetes, Gestational studies →

Lead sponsor

Fundación Pública Andaluza para la Investigación de Málaga en Biomedicina y Salud is the lead sponsor of 71 studies on the registry; 23 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Inclusion criteria

  • full term pregnancy (>37 weeks)
  • mother age 18-50 years
  • intention to practice exclusive breastfeeding for at least 3 months

Exclusion criteria

Exclusion Criteria:

  • preterm pregnancy (\<37 weeks)
  • multiple delivery
  • delivery complications that compromise the well-being of the newborn
  • congenital abnormalities of the baby
  • pathologies of the mother such as hypertension, HELLP syndrome, thyroids alterations or nephropathies - drugs or alcohol abuse record
  • occurrence of mastitis during the study
  • mothers practicing tandem nursing
05

Study design

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

Study arms

  • Active comparator
    Omega-3

    Dietary Supplement: Omega-3 Fatty Acids (EPA plus DHA)

  • Placebo comparator
    Placebo

    Dietary Supplement: Placebo

Interventions

  • Dietary supplementOmega-3 Fatty Acids (EPA plus DHA)

    Dietary supplementation with Omega-3 Fatty Acids to study the effect on the immune system of breast milk

  • Dietary supplementPlacebo

    Inert dietary supplement, without activity in the activation of the immune system of breast milk

06

What researchers measure

Primary outcomes

  1. Characterization of milk neutrophils from three groups of lactating mothers: control or gestational diabetes.

    Time frame: From enrollment to end of treatment at 3 months

  2. Characterization of microbiota and miRNA content of breast milk

    Time frame: From enrollment to end of treatment at 3 months

07

Study locations

1 of 1 sites recruiting
  • IBIMA-Plataforma Bionand
    Málaga, Malaga 29590, Spain
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 18, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06833554
Lead sponsor
Fundación Pública Andaluza para la Investigación de Málaga en Biomedicina y Salud
Responsible party
Sponsor
First posted
Feb 18, 2025
Start date
Jan 1, 2023
Primary completion
Jul 31, 2025 (estimated)
Completion
Dec 31, 2025 (estimated)
Last update
Feb 18, 2025

Study contacts

Almudena Ortega-Gomez
Contact
almudena.ortega@ibima.eu
+34 952367600

Oversight

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

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