Amniotic fluid and the extremely preterm baby's gut
Official title: The Impact of Amniotic Fluid on the Development and Microbial Colonization of the Preterm Intestinal Tract: the AMFIBIE Study
Run by Maxima Medical Center · NCT07152106 · Data updated 2026-11-12
We will see if amniotic fluid from extremely preterm births (24+0 to 27+6 weeks) shows changes that relate to gut problems such as necrotizing enterocolitis or sepsis in very preterm infants.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 16 Years and up |
| Sex | Women only |
| Enrollment | 275 (estimated) |
| Sponsor | Maxima Medical Center Academic / other |
| Locations | 2 sites (Amsterdam and 1 other locations) |
| Status | Recruiting |
| Started | October 14, 2024 |
| Main results expected | October 14, 2026 |
| Study ends | October 14, 2027 |
| Registry record updated | September 3, 2025 |
| Trial ID | NCT07152106 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are obstetric patients aged 16 or older who deliver extremely preterm infants (gestational age 24+0 to 27+6 weeks) at the participating centers and can provide written informed consent.
✕Probably not a fit
Patients delivering outside the specified gestational age range, pregnancies with fetal congenital or chromosomal abnormalities, those unable to provide consent, or those delivering at non-participating hospitals are not expected to benefit from this project.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This multicenter, prospective cohort will collect about 5 mL of amniotic fluid from 125 deliveries at gestational ages 24+0 to 27+6 weeks at Amsterdam UMC and Máxima Medical Center. Samples will be obtained during vaginal delivery or cesarean section and analyzed using advanced molecular, metabolomic, and microbiome techniques to characterize fluid composition. Secondary analyses will compare amniotic fluid profiles in cases with maternal chorioamnionitis or fetal growth restriction, examine key metabolites across gestation, and correlate amniotic fluid signatures with neonatal outcomes and early gut microbiota. No interventions are given; the project is observational and aims to identify biomarkers and biological signals linked to NEC and neonatal sepsis risk.
Why it matters
Potential benefit: If successful, the findings could identify amniotic fluid biomarkers that help predict which extremely preterm infants are at higher risk of NEC or sepsis, enabling earlier monitoring or tailored care.
How similar studies have gone: Previous research has linked amniotic fluid components to fetal gut development, but comprehensive molecular profiling in the extremely preterm population is relatively novel and not yet well established.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Maternal age ≥16 years * Written informed consent * Successful collection of amniotic fluid Exclusion Criteria: * Pregnancies complicated by fetal congenital and/or chromosomal abnormalities. * Insufficient proficiency of Dutch or English language
Where it's running
-
Amsterdam UMC
Amsterdam, Netherlands Recruiting -
Máxima Medical Center
Veldhoven, Netherlands Recruiting
Study contacts
- Study coordinator: Mirjam M. van Weissenbruch
- Email: m.vanweissenbruch@amsterdamumc.nl
- Phone: 020 566 9111
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.