NCT04304014

Brief Summary

This study aims to determine the effect of three factors (delivery type, feeding type and the use of two different dietary supplements) on rebiosis after disbiotic delivery. This is a randomized, single-blinded study with two parallel arms. Group 1 will receive L. reuteri (10\^8 CFU) once a day, group 2 will receive B. longum and P. Pentosaceus (10\^9 CFU) once a day.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
119

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Mar 2020

Longer than P75 for not_applicable

Geographic Reach
1 country

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 4, 2020

Completed
1 day until next milestone

Study Start

First participant enrolled

March 5, 2020

Completed
6 days until next milestone

First Posted

Study publicly available on registry

March 11, 2020

Completed
4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 12, 2024

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2024

Completed
Last Updated

May 20, 2025

Status Verified

May 1, 2025

Enrollment Period

4 years

First QC Date

March 4, 2020

Last Update Submit

May 15, 2025

Conditions

Keywords

probioticmicrobiotanewborn

Outcome Measures

Primary Outcomes (1)

  • Relative abundance of bifidobacteria

    Changes in the relative abundance of bifidobacteria in stool microbiota after 1 month of supplementation, measured with metagenomic techniques.

    1 month

Secondary Outcomes (10)

  • Number of regurgitations by questionnaire included in patients' diary

    3 months

  • Number of constipation episodes by questionnaire included in patients' diary

    3 months

  • Number of infant colic episodes by questionnaire included in patients' diary

    3 months

  • Metagenomic analysis of total gut microbiota

    1 month

  • Respiratory, gastrointestinal infections and use of medication by questionnaire included in patients' diary

    3 months

  • +5 more secondary outcomes

Study Arms (2)

L. reuteri

EXPERIMENTAL

Group that will receive L. reuteri one dose per day in an oral suspension Intervention: Dietary Supplement: L. reuteri

Dietary Supplement: L. reuteri

B. longum and P. Pentosaceus

EXPERIMENTAL

Group that will receive B. longum and P. Pentosaceus one dose per day in an oral suspension. Intervention: Dietary Supplement: B. longum and P. Pentosaceus

Interventions

L. reuteriDIETARY_SUPPLEMENT

(10\^8 CFU) once a day

L. reuteri

(10\^9 CFU) once a day

Eligibility Criteria

AgeUp to 25 Days
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Healthy infants up to 25 days of life
  • Infants with adequate weight according to the gestational age.
  • Infants born by vaginal delivery whose mother was given antimicrobial prophylaxis or infants born by C-section.
  • Gestational birth equal or greater than 37 weeks.
  • Exclusive or almost exclusive breastfeeding (understanding almost exclusive the one in which there is a maximum of one formula feeding per day) or mixed feeding (in which there is more than one formula feeding per day).

You may not qualify if:

  • Infants with smoker mother during pregnancy and after delivery.
  • Infants whose parents cannot follow the study requirements
  • Infants who have suffered neonatal admission or have suffered or suffer necrotizing enterocolitis, infectious disease, congenital malformation, short bowel syndrome or any serious illness.
  • Infants who have taken probiotics before the start of the trial or who take formula with probiotics.
  • Infants who ingest special formulas as extensively hydrolysed formulas.
  • Breast-fed infants whose mothers have excluded dairy products and egg products in their diet during breastfeeding

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Hospital Universitari General de Catalunya

Sant Cugat del Vallès, Barcelona, 08195, Spain

Location

Fundación HM Hospitales (Hospital HM Puerta Sur)

Madrid, Madrid, 28938, Spain

Location

Neonatal Unit, Hospital Clinic-Maternitat

Barcelona, Spain

Location

MeSH Terms

Conditions

Dysbiosis

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and Symptoms

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Both probiotic products will be provided in their commercial form. Both products will be individually placed inside opaque bags so that the investigator can not recognize the external case.
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

March 4, 2020

First Posted

March 11, 2020

Study Start

March 5, 2020

Primary Completion

March 12, 2024

Study Completion

November 30, 2024

Last Updated

May 20, 2025

Record last verified: 2025-05

Locations