ClinicalTrials.gg
RecruitingNCT07054216BABIES IIUpdated Aug 28, 2025

Probiotic for Infants

An interventional study of Probiotic and Placebo in Healthy Infants, sponsored by Hvidovre University Hospital. Recruiting at 2 sites in Denmark. Open to participants aged 0 Days to 1 Day, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-08-28.

Sponsored by Hvidovre University Hospital · Not applicable, Interventional, and Other

From the registry’s dates

  • Started Aug 2025; still recruiting 1 year 2 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
378
Allocation
Randomized
Ages
0 Days to 1 Day
Sex
All
01

Study summary

The BABIES II study is a single-center, randomized, double-blinded, placebo-controlled study in newborns with an 8½ months intervention period from 14 days of age to 9 months of age followed by a 3-months short-term follow-up period until 1 year of age and a possible long-term follow-up until 18 years of age. The study will evaluate the effect of supplementation with a probiotic strain on different health outcomes.

02

Conditions studied

  • Healthy Infants

Keywords

  • Infant
  • Gastrointestinal Microbiome
  • Diet, Food, and Nutrition
03

In context

Lead sponsor

Hvidovre University Hospital is the lead sponsor of 299 studies on the registry; 20 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
0 Days to 1 Day
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

"Inclusion Criteria"

Inclusion Criteria for the pregnant person

  1. Pregnant person above 18 years of age in gestational week 36+0-38+0 (at Visit 0)
  2. Singleton pregnancy
  3. Ability to read and speak Danish
  4. Plan to breastfeed
  5. Provided voluntary written .

Inclusions Criteria for the newborn

  1. Born at full-term ≥37+0
  2. Birth weight ≥ 2500 g
  3. APGAR score of ≥ 7 within the first 5 min of life.

"Exclusion Criteria" Exclusion Criteria for the pregnant person

  1. Pregnancy at 38 weeks + 0 or later at the time of recruitment
  2. Pregnancy with significant fetal abnormality at ultrasound scan of the fetus at gestational age 19-20 weeks
  3. Alcohol or drug abuse
  4. Plan to give birth at other hospitals than Copenhagen University Hospital Hvidovre
  5. Pregnant person with any for breastfeeding.

Exclusion Criteria for the newborn

  1. Congenital disorders that could affect their safety or the study outcome
  2. Admission to Neonatal Intensive Care Unit for more than 24 hours
  3. Participation in another clinical intervention study which can interfere with this probiotic intervention
  4. Probiotics other than the study product.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
378 participants (estimated)

Study arms

  • Active comparator
    Probiotic

    Probiotic Dietary supplement

    Other: Probiotic

  • Placebo comparator
    Placebo

    Identical looking placebo consisting of maltodextrin

    Dietary Supplement: Placebo

Interventions

  • OtherProbiotic

    Given daily from 14 days of age until 9 months of age

  • Dietary supplementPlacebo

    Given daily from 14 days of age until 9 months of age

06

What researchers measure

Primary outcomes

  1. Total abundance of Bifidobacteria

    Abundance of Bifidobacteria in infant fecal samples by quantitative PCR

    Time frame: At 3 months of age

Secondary outcomes

  1. Infant fecal pH

    Changes in Fecal pH measured in fecal water from fecal samples

    Time frame: Birth (first stool after meconium), 2 weeks, 1 month, 2 months, 3 months, 4 months, 5 months, 6 months, 9 months, and 1 year

  2. Infant gut microbiome composition

    Changes in gut microbiome composition analyzed by metagenomics analysis of fecal stool samples (shotgun DNA sequencing)

    Time frame: Birth (first stool after meconium), 2 weeks, 1 month, 2 months, 3 months, 4 months, 5 months, 6 months, 9 months, and 1 year

  3. Proportion of infants with hard or very hard stool consistency

    The proportion of infants with episodes 'hard' and/or 'very hard' stool consistency assessed as the difference in numbers of infants who experience 'hard' and /or 'very hard' stool consistency during weaning (from first introduction of solid food) between the two groups

    Time frame: 4 months, 5 months, 6 months

Other outcomes

  1. Infant gut metabolome composition

    Changes in the overall infant fecal metabolome assessed by untargeted metabolomics

    Time frame: Birth (first stool after meconium), 2 weeks, 1 month, 2 months, 3 months, 4 months, 5 months, 6 months, 9 months, and 1 year

  2. Quantity of metabolites in infant fecal samples

    Quantification of metabolites in infant fecal samples measured by targeted metabolomics

    Time frame: Birth (first stool after meconium), 2 weeks, 1 month, 2 months, 3 months, 4 months, 5 months, 6 months, 9 months, and 1 year

  3. Infant Whole Gut Transit Time

    Whole gut transit time measured by sweet corn test

    Time frame: 9 months and 1 year

  4. Abundance of clinically relevant pathogens in feces

    Abundance of clinically relevant pathogens in feces (e.g., but not limited to Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus haemolyticus, Pseudomonas aeruginosa, Enterobacter, Klebsiella, Proteus, group B Streptococcus, Clostridioides difficile, Bacillus subtilis and Acinetobacter measured by DNA/RNA sequencing of fecal samples

    Time frame: Birth (first stool after meconium), 2 weeks, 1 month, 2 months, 3 months, 4 months, 5 months, 6 months, 9 months, and 1 year

  5. Infant bowel habits

    Changes in bowel habits as measured by stool frequency and stool consistency. The consistency will be assessed by a modified Diapered Infant Stool Scale continuously in an electronic diary weekly from birth to 1 year of age

    Time frame: Weekly (0-52 weeks of age)

  6. Pediatric Quality of Life Inventory™ 2.0 Family Impact Module (PedsQL™)

    Familys health-related quality of life will be measured by Pediatric Quality of Life Inventory™ 2.0 Family Impact Module (PedsQL™) The 36-item PedsQL consists of 6 scales measuring parent self-reported functioning: 1) Physical Functioning (6 items), 2) Emotional Functioning (5 items), 3) Social Functioning (4 items), 4) Cognitive Functioning (5 items), 5) Communication (3 items), 6) Worry (5 items), and 2 scales measuring parent-reported family functioning; 7) Daily Activities (3 items) and 8) Family Relationships (5 items). A 5-point response scale is utilized (0 = never a problem; 4 = always a problem). Items are reverse-scored and linearly transformed to a 0-100 scale (0 = 100, 1 = 75, 2 = 50, 3 = 25, 4 = 0) and higher scores indicate better functioning (less negative impact).

    Time frame: 3 months, 6 months, 9 months, and 1 year

  7. Infant blood metabolome

    Newborn blood metabolome as assessed by targeted and untargeted metabolomics from dried blood spots

    Time frame: 3 months, 6 months, 9 months, and 1 year

  8. Alarm Distress Baby scale

    Infant socioemotional development (stress and failure to thrive) will be measured by the Alarm Distress Baby scale. The scale focuses on eight distinctive areas of infant behaviour: facial expression, eye contact, general level of activity, self-stimulation gestures, vocalisations, briskness of response to stimulation, ability to initiate and maintain a relationship and ability to generate and sustain attention. It is used for infants aged 0-24 months and each item is rated from 0 to 4 with the overall score reflecting an interpretation of the baby's behaviour in a given situation. A score of 5 or above is indicative of relational withdrawal. A low score means a better outcome.

    Time frame: 3-4 weeks of age, 2-3 months and 8-10 months of age

07

Study locations

1 of 2 sites recruiting
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 28, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT07054216
Collaborators
University of Copenhagen, Chr Hansen
Responsible party
Andreas Munk Petersen (Professor Andreas Munk Petersen, MD, PhD, DMSc, Hvidovre University Hospital) — Principal investigator
First posted
Jul 8, 2025
Start date
Aug 25, 2025
Primary completion
Dec 31, 2027 (estimated)
Completion
Jul 1, 2028 (estimated)
Last update
Aug 28, 2025

Study contacts

Sofie Ingdam Halkjær, MSc, PhD
Contact
sofie.ingdam.halkjaer@regionh.dk
+45 38 62 38 62
Andreas Munk Petersen, MD, PhD, DMSc
principal investigator · Center for Klinisk Mikrobiom Forskning, Gastroenheden og Klinisk Mikrobiologisk Afdeling, Hvidovre Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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