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Effect of Probiotics Consumed During Pregnancy on the Incidence of Mastitis

Multicenter, Randomized, Double-blind, Controlled Parallel Nutritional Intervention Study to Evaluate the Effect of Consumption During Pregnancy and the Lactation Period of Lactobacillus Fermentum CECT5716 on the Incidence of Mastitis

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04032899
Enrollment
480
Registered
2019-07-25
Start date
2019-04-15
Completion date
2024-05-31
Last updated
2025-02-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Milk, Infant Health, Lactation, Mastitis, Women's Health

Keywords

Probiotics, Gestation, Lactation, Mastitis

Brief summary

The aim of the present study is to evaluate the effect of consumption during pregnancy and the lactation period of the probiotic L. fermentum CECT5716 on the incidence of mastitis. Bacterial load and immunological parameters in breast milk, parameters related to breastfeeding as well as health parameters of the mother and baby will also be evaluated.

Detailed description

Pregnancy and lactation are important moments for the child that will determine their development and future health. One of the key processes is when the microbiota is established in the baby. Contamination during delivery with the mother's vaginal flora, as well as bacteria from the microbiota of breast milk, are important sources for intestinal colonization. However, the mother's microbiota can suffer alterations that affect the health of the mother and can also have an effect on the baby. Mastitis is a condition of the mammary gland that can affect between 3-30% of women during the period of lactation and is the first cause of abandonment of it. It is associated with a dysbiosis with the proliferation of microorganisms in milk such as Staphylococcus and Streptococcus. Previous studies carried out with the strain L. fermentum CECT5716 have demonstrated a powerful regulating activity of the microbiota of breast milk that translates into a preventive and curative effect on mastitis. The highest incidence of mastitis occurs during the first weeks after delivery, so the investigator's working hypothesis is that the modulation of the maternal microbiota before delivery would improve the effectiveness of the probiotic strain consumption.

Interventions

Each participant will consume 1 capsule per day in one of the main meals without any restriction in the diet or in their life habits.

DIETARY_SUPPLEMENTMaltodextrin

Each participant will consume 1 capsule per day in one of the main meals without any restriction in the diet or in their life habits.

Sponsors

Biosearch S.A.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

* Normal development of pregnancy * Single fetus pregnancy * Be in week 28-32 of pregnancy * Intention to breastfeed the child for 16 weeks

Exclusion criteria

* Having a breast disease that hinders or prevents breastfeeding * Have been taking probiotic supplements 2 weeks before starting the study * Have a low expectation of adherence to the study protocol

Design outcomes

Primary

MeasureTime frameDescription
Incidence of mastitis4 monthsTotal events during breastfeeding period /total number of participants

Secondary

MeasureTime frameDescription
Microbiota of breast milk4 monthsLoad of Staphylococcus, S. aureus, S. epidermidis, Streptococcus, Lactobacillus and L. fermentum CECT5716 in breast milk

Other

MeasureTime frameDescription
Time of Breastfeeding4 monthsDate of initiation and cessation of breastfeeding
Percentage of infants breastfeed4 monthsPercentage of infants who receive exclusive breastfeeding
Measurement of biomarkers of inflammation in breast milk4 monthsConcentration of IL-1b, IL-6, IL-8, IL-17, TNF-α in breast milk
Immunoglobulins in breast milk4 monthsConcentration of IgA, IgG1, IgG2, IgG3, IgG4 and IgM in breast milk
Minerals in breast milk4 monthsConcentration of calcium (μg/L), magnesium (μg/L) and potassium (μg/L) in breast milk
Recurrence of mastitis4 monthsReappearance of mastitis symptoms
Data on childbirth4 monthsIncidence of cesareans and incidence of antibiotic use during delivery.
Baby's anthropometric measures16 weeksAnthropometric measures of the baby (weight in kg, height in cm and BMI in kg/m2) at birth, 4 weeks, 8 weeks and 16 weeks.
Data about the intestinal health of the baby4 monthsData about stool frequency, colour and consistency of the feces and gasses
Data about sleep parameters of the baby4 monthsHours of night sleeping per day and hours of total sleeping during the day
Baby feces microbiota4 monthsPresence of Escherichia coli, Clostridium, Bacteroides, Bifidobacteria, Lactobacillus and L. fermentum CECT5716 in baby feces
Breast pain questionnaire4 monthsMcgill Pain Questionnaire, validated for Spain. The Questionnaire has four dimensions or scales of measures of intensity: Sensory Intensity Value, Affective Intensity Value, Current Intensity Value, and Evaluative Intensity Value. The scales of the Questionnaire were calculated as the sum of their items. Those items were re-corded as 1 if the participant described the pain or as 0 if the participant did not report that type of pain. Thus, the sensory intensity scale can range from 0 to 33, as the full scale is formed by 33 items. The Affective scale varies from 0 to 19, and the scales of Current Intensity and Evaluative Intensity can range from 0 to 6 and 5, respectively

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026