Feeding the Preterm Gut Microbiota - Impact of Infant-feeding on Preterm Gut Microbiota Development (FEEDMI)

September 28, 2018 updated by: Universidade do Porto
Preterm infants are especially vulnerable to gut microbiota disruption and dysbiosis since their early gut microbiota is less abundant and diverse. Several factors may influence infants' microbiota such as mother's diet, mode of delivery, antibiotic exposure and type of feeding. The main goal of this observational study is to evaluate the impact of different types of feeding (breast milk, donor human milk and preterm formulas) on the intestinal microbiota of preterm infants hospitalized in the neonatal intensive care unit (NICU) of Maternidade Alfredo da Costa (MAC). Furthermore, the influence of mode of delivery and the mother's diet, among others factors, on vertical microbiota transmission will be evaluated. After delivery, mothers will be asked to collect their own fecal samples and will be invited to complete a semi-quantitative food frequency questionnaire. Stool samples will be collected from premature infants every 7 days. DNA will be extracted from fecal samples and different bacterial genus and species will be analyzed.

Study Overview

Status

Status

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

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.

Detailed Description

Meconium and the additional 3 fecal samples will be collected from preterm infants by the nursing team of MAC Neonatology Unit. Fecal samples will be collected every 7 days, during 21 days, from diapers into sterile tubes. Mothers will be asked to collect their own fecal samples with an appropriate stool collection kit (EasySampler®) and will be invited to complete a semi-quantitative food frequency questionnaire, previously validated for the Portuguese population.

Infant-feeding profile (breast milk, donor human milk or formula) of preterm infants will be recorded every day to select the most representative (>50 %) type of infant-feeding received during the 7 days prior to each fecal sample collection.

Additionally, detailed clinical data will be collected during the preterm infant enrollment in the study. Personal clinical data includes sociodemographic information and clinical intrapartum and postpartum outcomes, such as newborn's weight, days of antibiotic exposure, number of total days of hospitalization and others outcomes related to the preterm clinical evolution.

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.
Observational

Enrollment (Anticipated)

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.
60

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 Contact Backup

Study Locations

  • Portugal
      • Lisbon, Portugal, 1050-010
        • Recruiting
        • Maternidade Dr. Alfredo da Costa, Centro Hospitalar de Lisboa Central
        • Contact:
        • Contact:
        • Principal Investigator:
          • Sara Brito, MD
        • Sub-Investigator:
          • Manuela Cardoso, BsC
        • Sub-Investigator:
          • Teresa Tomé, MD
        • Sub-Investigator:
          • Israel Macedo, MD
      • Lisbon, Portugal, 1169-056
        • Active, not recruiting
        • NOVA Medical School, Universidade Nova de Lisboa

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

No older than 3 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Very preterm infants born with less than 32 weeks recruited at the NICU of Maternidade Dr. Alfredo da Costa, Centro Hospitalar de Lisboa Central, Lisbon, Portugal

Description

Inclusion Criteria:

  • To be eligible for enrolment, preterm infants must have been admitted to the NICU in less than 24 hours of life, have been born with less than 32 weeks with absence of malformations or metabolic diseases.

Exclusion Criteria:

  • non applicable

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

  • Observational Models: Case-Only
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
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.
Very Preterm Infants
Newborn infants with less than 32 weeks admitted in the NICU.
Other: Infant-feeding
Preterm infants hospitalized in the NICU can be feed by three different types of infant feeding, such as breast milk, donor human milk and/or formulas.

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
Measure Description
Time Frame
Changes from baseline intestinal microbiota composition of preterm infants at 7, 14 and 21 days.
Time Frame: The first fecal sample (meconium) of preterm infants will be collected. Afterwards, fecal samples will be collected every 7 days, during 21 days.
The intestinal microbiota profile of preterm infants will be evaluated over time.
The first fecal sample (meconium) of preterm infants will be collected. Afterwards, fecal samples will be collected every 7 days, during 21 days.
Changes from baseline intestinal microbiota composition of preterm infants in relation to infant-feeding profile (breast milk, donor human milk or formula) at 7,14 and 21 days.
Time Frame: Infant-feeding type of preterm infants before the first, second, third and fourth collection will be recorded during these 21 days.
Infant-feeding profile (breast milk, donor human milk or formula) will be recorded every day to select the most representative type of infant-feeding (> 50 %) received during the 7 days prior to each fecal sample collection.
Infant-feeding type of preterm infants before the first, second, third and fourth collection will be recorded during these 21 days.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Maternal intestinal microbiota composition, analyzed by RT-PCR.
Time Frame: Maternal fecal samples will be collected after delivery up to 1 week.
Mother's will be asked to collect their own fecal samples for gut microbiota analysis by RT-PCR. An appropriate stool collection kit will be provided (EasySampler Stool Collection kit).
Maternal fecal samples will be collected after delivery up to 1 week.
Changes in maternal gut microbiota in relation to clinical variables described below
Time Frame: Clinical variables will be collected daily, until study completion an average of 2 years.
Changes in intestinal microbiota profile of preterm infants' mothers will be evaluated in relation to mode of delivery, mother's gestational age, dietary pattern during pregnancy, weight gain in gestation and antibiotic exposure.
Clinical variables will be collected daily, until study completion an average of 2 years.

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.
Universidade do Porto

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Center for Health Technology and Services Research
Universidade Nova de Lisboa
Maternidade Dr. Alfredo da Costa

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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.
May 25, 2017

Primary Completion (Anticipated)

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.
December 30, 2018

Study Completion (Anticipated)

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 30, 2018

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).
July 19, 2018

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.
September 5, 2018

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.
September 10, 2018

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.
October 2, 2018

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.
September 28, 2018

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.
August 1, 2018

More Information

Terms related to this study

Keywords

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.
  • FEEDMI

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

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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