NCT06249178

Brief Summary

The goal of this prospective observational cohort study of pregnant people at-risk of preeclampsia receiving aspirin as part of clinical care or a planned randomized controlled trial of 81mg vs. 162mg of aspirin is to generate proteomic data to show a distinct maternal and fetal Extracellular Vesicle (EV) proteome profile with aspirin treatment, and develop and validate a multi-marker panel for the monitoring of placental function in people at-risk of Preeclampsia and in response to aspirin treatment. The primary research question is: 1\. Does the maternal and fetal Positive for Placental Alkaline Phosphatase (PLAP+) Extracellular Vesicle (EV) proteome profile in the 2nd and 3rd trimester of pregnancy differ between people who receive aspirin and develop (or not) preeclampsia? Participants will be asked to give blood samples up to four times during and at the end of their pregnancy.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
1,000

participants targeted

Target at P75+ for all trials

Timeline
29mo left

Started Jul 2024

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 Progress44%
Jul 2024Sep 2028

First Submitted

Initial submission to the registry

January 31, 2024

Completed
8 days until next milestone

First Posted

Study publicly available on registry

February 8, 2024

Completed
5 months until next milestone

Study Start

First participant enrolled

July 2, 2024

Completed
4.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2028

Last Updated

December 29, 2025

Status Verified

December 1, 2025

Enrollment Period

4.2 years

First QC Date

January 31, 2024

Last Update Submit

December 24, 2025

Conditions

Keywords

Extracellular vesicles proteome profileAspirin treatmentPregnancyPreeclampsia

Outcome Measures

Primary Outcomes (1)

  • multi-marker panel

    Multi-marker panel (list of proteins) associated with placental function in people at-risk of PE and in response to aspirin treatment.

    From enrollment till delivery; up to 29 weeks

Secondary Outcomes (9)

  • Preeclampsia

    From enrollment to deliver; up to 29 weeks

  • Preterm birth < 37 weeks gestation

    From enrollment to deliver; up to 25 weeks

  • Preterm birth < 34 weeks gestation

    From enrollment to deliver; up to 22 weeks

  • Preeclampsia with severe features

    From enrollment to deliver; up to 29 weeks

  • Gestational hypertension

    From enrollment to deliver, up to 29 weeks

  • +4 more secondary outcomes

Eligibility Criteria

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

Pregnant women greater than 18 years of age at risk of preeclampsia (PE), receiving aspirin to prevent PE or a candidate to receive aspirin.

You may qualify if:

  • pregnant individuals age ≥18 years
  • enrolled ≤16 6/7 weeks of gestation based on the best obstetric estimate as defined by ACOG criteria
  • singleton live intrauterine gestation
  • Any of the following:
  • At least one of the high-risk criteria for HDP (per US Preventive Services Task Force Recommendation Statement \[USPSTF\]); i) any prior pregnancy complicated by Preeclampsia ii) current pregnancy complicated by chronic hypertension iii) chronic kidney disease iv) autoimmune disease (e.g., antiphospholipid syndrome, lupus) or
  • Two or more moderate-risk criteria for HDP (per USPSTF); i) nulliparity (no prior delivery at or after 20 weeks 0 days of gestation) ii) obesity (body mass index ≥30 kg/m2 at time of enrollment) iii) age ≥35 years (at time of expected estimated due date) iv) Black race v) Low income vi) Personal risk factors (previous pregnancy with low birth weight or SGA infant, previous adverse pregnancy outcome \[unexplained stillbirth\], placental abruption, interval \>10 years between pregnancies).
  • vii) Pregnancy after in vitro conception viii) family history of preeclampsia ( i.e., mother or sister)
  • or participating in another clinical RCT of 81mg vs. 162mg aspirin for prevention of hypertensive disorders of pregnancy

You may not qualify if:

  • age \< 18 years,
  • involuntarily confined or detained
  • considered as having a diminished decision-making capacity
  • multifetal gestation
  • pregestational diabetes mellitus or gestational diabetes diagnosed \< 20 weeks due to the impact on exosome response
  • known or suspected fetal aneuploidy or major congenital abnormality, fetal demise, or planned pregnancy termination
  • known allergy or hypersensitivity to aspirin or any medical condition where aspirin is contraindicated (e.g., peptic ulcer disease, nasal polyps, NSAID-induced asthma, gastrointestinal bleeding, G6PD deficiency, severe hepatic dysfunction, bleeding disorders)
  • plan to deliver at another center or participating in another intervention study that influences the primary outcome in this study, without prior approval

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The Ohio State University Wexner Medical Center OB/GYN Maternal and Fetal Medicine

Columbus, Ohio, 43210, United States

RECRUITING

Biospecimen

Retention: SAMPLES WITHOUT DNA

Blood and optional placenta samples will be collected.

MeSH Terms

Conditions

Pre-Eclampsia

Condition Hierarchy (Ancestors)

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

Study Officials

  • Maged Costantine, MD, MBA

    Ohio State University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Maged Costantine, MD, MBA

CONTACT

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD, MBA, Professor

Study Record Dates

First Submitted

January 31, 2024

First Posted

February 8, 2024

Study Start

July 2, 2024

Primary Completion (Estimated)

September 1, 2028

Study Completion (Estimated)

September 1, 2028

Last Updated

December 29, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Locations