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First Trimester Screening for Preeclampsia and Intrauterine Growth RestrIction Using Three Dimensional Doppler Angiography

NCT03342014 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 2159

Last updated 2022-12-12

No results posted yet for this study

Summary

Introduction: Preeclampsia (PE) and intrauterine growth restriction (IUGR) are two major pregnancy complications, related to a chronic utero-placental hypoperfusion. Nowadays, there isn't a screening or diagnostic test in clinic for utero-placental vascularization deficiency. Since 2004, 3D Power Doppler angiography has been used for the evaluation of utero-placental vascularisation and three vascular indices have been calculated: the vascularisation index (VI), flow index (FI) and vascularisation-FI (VFI). A high intra and inter-observer reproducibility and its potential interest for placental function study were reported. The investigator's main hypothesis is that these 3DPD indices could provide predictive values for PE and/or IUGR occurrence much higher than those observed with the currents other markers.

Objectives: The main objective of this study is to determine differences in 3DPD indices at first trimester between pregnancies defined at their outcome as uncomplicated pregnancy, PE (mild and severe) and IUGR in nulliparous women.

Methods and analysis: This is a prospective study. The investigators expect to include 2200 women in 4 French centers: Centre Hospitalier Universitaire de Nancy, Paris-Port-Royal (Assistance Publique - Hôpitaux de Paris), Strasbourg and Belfort (Hôpital Nord Franche-Comté).

The nulliparous pregnant women will be recruited during their 1st trimester consultation for routine Down syndrome screening (11-13+6 gestation weeks). Especially for the study, the 3DPD and Uterine Artery Doppler (UAD) acquisition, which last less than 10 min, will be included in the current routine 11-13+6 gestation weeks ultrasound screening. Also, additional blood samples will be taken for biomarker analysis (PAPP-A and P1GF) and biological collection. Utero-placental vascularization indices (VI, FI, VFI) will be quantified using VOCAL® software. For each subgroup (uncomplicated pregnancy, PE and IUGR) mean values in 3DPD indices will be computed and compared using a pairwise t test with a Bonferroni correction p value adjustment.

Conditions

  • Pre-Eclampsia

Interventions

DEVICE

Ultrasound

3DPD and UAD acquisitions (10 min)

BIOLOGICAL

Blood sample collection

A blood sampling (20 mL) is collected for biomarker analysis (PAPP-A and PlGF) and biological collection.

Sponsors & Collaborators

  • Central Hospital, Nancy, France

    lead OTHER

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2018-04-16
Primary Completion
2022-11-14
Completion
2022-11-14

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03342014 on ClinicalTrials.gov