The Role of Breast Milk Neutrophils From Mothers With Metabolic Diseases After Nutritional Intervention. Impact on Infant Development and Response to Pulmonary Infections (PI2222/01813)

February 17, 2025 updated by: Fundación Pública Andaluza para la Investigación de Málaga en Biomedicina y Salud

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

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.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
80

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Spain
    • Malaga
      • Málaga, Malaga, Spain, 29590

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

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

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Placebo Comparator: Placebo
Dietary supplement: Placebo
Inert dietary supplement, without activity in the activation of the immune system of breast milk
Active Comparator: Omega-3
Dietary supplement: Omega-3 Fatty Acids (EPA plus DHA)
Dietary supplementation with Omega-3 Fatty Acids to study the effect on the immune system of breast milk

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
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
From enrollment to end of treatment at 3 months
Characterization of microbiota and miRNA content of breast milk
Time Frame: From enrollment to end of treatment at 3 months
From enrollment to end of treatment at 3 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Fundación Pública Andaluza para la Investigación de Málaga en Biomedicina y Salud

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2023

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 31, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 13, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 17, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 25, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 17, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • PI22/01813

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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Conditions

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Dietary Supplements

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