NCT04783597

Brief Summary

Despite advances in obstetric care, preeclampsia (PE) remains the leading cause of maternal death and disability in both developed and developing countries, contributing to over 70,000 maternal and 500,000 fetal deaths annually worldwide. PULSE was designed using a preventative medicine approach, focusing on improving early detection of PE as opposed to managing symptoms after onset. The study aims to uncover the earliest possible signs of PE using a combination of novel clinical tools and established diagnostic techniques to better identify, track, and manage high risk pregnant women. Specifically, PULSE will be examining the incorporation of a non-invasive test for the measurement of arterial stiffness, which has been shown to be predictive of hypertensive disorders. This test, in combination with a wide range of blood biomarkers, detailed ultrasound imaging, and a comprehensive battery of physical and mental health questionnaires, represents the largest, most comprehensive preventative PE study to date. The results of this work has the potential to revolutionize the way PE and other hypertensive disorders of pregnancy are managed and treated and can serve to inform the design of future preventative clinical research studies.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
2,400

participants targeted

Target at P75+ for all trials

Timeline
8mo left

Started Jul 2021

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress88%
Jul 2021Jan 2027

First Submitted

Initial submission to the registry

February 25, 2021

Completed
8 days until next milestone

First Posted

Study publicly available on registry

March 5, 2021

Completed
4 months until next milestone

Study Start

First participant enrolled

July 12, 2021

Completed
4.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2026

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2027

Expected
Last Updated

April 18, 2025

Status Verified

April 1, 2025

Enrollment Period

4.5 years

First QC Date

February 25, 2021

Last Update Submit

April 15, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Diagnosis of pre-eclampsia

    According to the Society of Obstetricians and Gynaecologists (SOGC) guidelines, upon the presence of 2 criteria: 1) hypertension; chronic (pre-dating pregnancy or diagnosed \<20 weeks' gestation) or de novo/gestational (diagnosed ≥20 weeks') hypertension along with 2) de novo end-organ dysfunction

    up to 6 weeks post-partum (after delivery)

Interventions

Arterial stiffness and wave refection, a non-invasive test, will be collected and combined with standard clinical markers (blood biomarkers, ultrasound imaging) as well as medical and psychosocial questionnaires in order to test a comprehensive, multi-marker approach for pre-eclampsia prediction in high risk pregnant women.

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Pregnant women at high risk of developing preeclampsia

You may qualify if:

  • Singleton pregnancy
  • Presence of at least 1 high-risk factor or 2 moderate-risk factors for pre-eclampsia

You may not qualify if:

  • \>14 weeks gestation
  • Multiple pregnancy
  • History of heart disease, stroke, or peripheral arterial disease
  • Infectious diseases/conditions, such as Hepatitis B/C, HIV, and COVID19

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Royal Victoria Hospital

Montreal, Quebec, H3A 1A1, Canada

RECRUITING

Biospecimen

Retention: SAMPLES WITH DNA

Blood will be collected from participants for serum and plasma biomarker analysis.

MeSH Terms

Conditions

Pre-Eclampsia

Interventions

Vascular Stiffness

Condition Hierarchy (Ancestors)

Hypertension, Pregnancy-InducedPregnancy ComplicationsFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital Diseases

Intervention Hierarchy (Ancestors)

Cardiovascular Physiological PhenomenaCirculatory and Respiratory Physiological Phenomena

Study Officials

  • Stella S Daskalopoulou, MD, PhD

    Research Institute of the McGill University Health Centre

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Helena Papacostas, PhD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor - Department of Medicine, Division of Internal Medicine and Division of Experimental Medicine

Study Record Dates

First Submitted

February 25, 2021

First Posted

March 5, 2021

Study Start

July 12, 2021

Primary Completion

January 1, 2026

Study Completion (Estimated)

January 1, 2027

Last Updated

April 18, 2025

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will not share

Locations