About this trial
The primary objective of the Stillbirth Research Consortium (SBRC) longitudinal cohort study is to develop and evaluate a robust multivariable prediction model to identify pregnancies at \<14 weeks gestation that are at increased risk of stillbirth or fetal growth restriction (FGR), often reflecting underlying placental dysfunction.
Secondary objectives include:
* To evaluate placental pathology among cases and selected controls using standardized Amsterdam criteria. * To identify key aspects of perinatal nutrition contributing to placental dysfunction * To determine relationships between maternal biomarkers, placental pathology and energetics, with the goal of identifying biomarkers predictive of placental dysfunction * To develop a risk stratification model for pregnancies complicated by decreased fetal movements (DFM)
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Gestational age at enrollment: Between 12.0 and 13.6 weeks of gestation
Pregnant individuals receiving care at participating clinical sites with intent of delivering at study hospital
Consent to participate in study procedures through 6 weeks postpartum
18 years or older
Disqualifiers
Evidence of fetal genetic anomaly or major structural malformation
Known fetal aneuploidy based on chorionic villus sampling
Positive cell-free fetal DNA screening for aneuploidy
Multifetal gestation
Trial population
The study population for the primary objective will include pregnant individuals who are screened and enrolled between 12.0 and 13.6 weeks of gestation at participating clinical sites ("Early Pregnancy Cohort"). Individuals may also be screened and enrolled at later gestational ages greater than or equal to 28 weeks gestation to address the secondary objectives of the project, including DFM, and FGR and relationship to perinatal nutrition and allostatic load ("Late Pregnancy Cohort"). This study will collect discarded neonatal cord blood post-delivery and will request access to neonatal medical record charts using appropriate HIPAA Authorization. We will also collect paternal saliva samples, when possible, after obtaining consent from the father.
Trial design
Cohort
Prospective
Treatments tested in this trial
Not listed
Trial groups
Trial outcomes
Primary outcomes
The primary outcome is a composite outcome of stillbirth or severe placental dysfunction, defined as the occurrence of birth at or beyond 20.0 weeks of gestation.
Stillbirth, Fetal Growth Restriction (FGR) or Neonatal Mortality \<7 days among births at ≥20.0 weeks' gestation meeting one or more of the following: * Stillbirth among births at \>20.0 weeks' gestation * FGR defined as: FGR \< 3rd percentile FGR 3 - \<10th percentile with at least one of the following criteria: Umbilical artery Doppler \> 95th percentile for either systolic/diastolic ratio (S/D), pulsatility index (PI), or resistance index (RI) Oligohydramnios Non-reassuring fetal heart rate or biophysical profile \- Neonatal death less than or equal to 7 days, excluding non-medical causes Primary outcome Time Frame: Birth through 7-days post delivery
Secondary outcomes
Stillbirth
Stillbirth among all births
Fetal growth restriction (FGR)
Fetal growth restriction \<10%ile with at least one of the following criteria: * Umbilical artery Doppler \> 95th percentile for either systolic/diastolic ratio (S/D), pulsatility index (PI), or resistance index (RI) * Oligohydramnios * Non-reassuring fetal heart rate or biophysical profile
Neonatal mortality
Early neonatal mortality among live births
Placental dysfunction among stillbirths, fetal growth restriction and neonatal deaths
Placental dysfunction will be defined using the Amsterdam Criteria including the following characteristics: Maternal vascular malperfusion (MVM), fetal vascular malperfusion (FVM), VUE, or MPVFD/MFI; other important findings associated with placental insufficiency; and/or cord abnormalities associated with placental insufficiency
Sponsors and contacts
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RTI International
Lead sponsor
Old Dominion University
Collaborator
University of Utah
Collaborator
Columbia University
Collaborator
University of California, San Diego
Collaborator
Oregon Health and Science University
Collaborator
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Collaborator
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