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Influence of Probiotics on Early Gut Microbial Colonization

Influence of Probiotics on Early Gut Microbial Colonization, Safety and Tolerability in Infants Born by Caesarean Section

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07608341
Acronym
STORKIE
Enrollment
150
Registered
2026-05-27
Start date
2026-08-01
Completion date
2030-08-01
Last updated
2026-05-27

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

Conditions

C-Section

Keywords

microbiome, c-section, probiotic, gut microbiome

Brief summary

The goal of this clinical trial is to learn whether daily probiotic drops plus vitamin D3 can improve early gut microbiome colonization in healthy infants born by C-section. It will also assess safety and tolerability. An intervention with probiotics + vitamin D3 will be compared to placebo + vitamin D3 in a double-blind, randomized design, and include an open-label vaginal-born reference group. Participants will receive study drops daily for 8 weeks and provide stool samples at multiple time points and complete questionnaires/diaries. After the intervention period, there is an optional follow-up period for up to 3 years.

Interventions

DIETARY_SUPPLEMENTProbiotic drops

Probiotic+vitamin D3 drops

DIETARY_SUPPLEMENTPlacebo drops

Placebo+vitamin D3

Sponsors

BioGaia AB
Lead SponsorINDUSTRY
Aurevia
CollaboratorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
0 Days to 3 Days
Healthy volunteers
Yes

Inclusion criteria

Infant born by planned C-section or vaginal born infant Gestational age at birth ≥ 37±0 weeks to \<41 ±0 weeks Infant Apgar score 7-10, (5 minutes after birth) Intention to breastfeed the infant Parents/legal guardians are \>18 years Parents/legal guardians have readiness and the opportunity to fill out a study diary, questionnaires and agree to collect biological samples Parents/legal guardians with ability to understand and comply with the requirements of the study, as judged by the Investigator Parents/legal guardians are willing and able to give written informed consent for their and their infants participation in the study

Exclusion criteria

\>72 hours after birth when collecting the first faecal sample and given the first drops of study product Infants classified as small for gestational age (SGA), defined as birth weight \< -2 standard deviations (SD) for gestational age and sex according to national reference standards. Infants with birth of congenital malformations or anomalies Infants not able to feed adequately by oral means at the time of screening (i.e., requiring tube feeding) Infants requiring care in neonatal unit Disruption of amniotic membranes for \>24 hours Infants consuming probiotics, including in infant formula Mothers use of antibiotics during the last 14 days of pregnancy prior to delivery Participation in other clinical studies Any other disease, condition, or circumstance that, in the investigator's opinion, may compromise the participant's safety, adherence to the protocol, or the interpretation of study results

Design outcomes

Primary

MeasureTime frameDescription
To assess early gut microbial colonization in C-section newborns after probiotic supplementation + vitamin D3 or placebo + vitamin D3 and in vaginal born controls.week 2To evaluate the faecal relative abundance of Actinobacteria in the gut microbiome

Secondary

MeasureTime frameDescription
To evaluate the gut microbiome colonization and composition.week 2To evaluate the faecal relative abundance of Bifidobacterium in gut microbiome
To assess quality of lifeWeeks 4 and 8, with optional assessments at 6 and 12 months.To evaluate quality of life by Paediatric Quality of Life Inventory (PedsQL),
To assess quality of life.Weeks 2, 4 and 8, with optional assessments at 6 and 12 months and 3 years.To evaluate symptoms of infant gastrointestinal distress by Infant Gastrointestinal symptoms questionnaire (IGSQ)

Countries

Finland

Contacts

CONTACTSofia Nordh, PhD
son@biogaianewsciences.com+46 (0)8 555 293 00

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 28, 2026