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NCT04974892Completed

Aspirin and Neutrophils in Preeclampsia

Investigating the Role of Neutrophils in Aspirin Treatment for Women at High Risk of Preeclampsia

Source: ClinicalTrials.gov · Last updated 23 Apr 2026

Brief summary (registry, in English)

The exact mechanisms by which aspirin prevents the development of preeclampsia in high-risk patients are currently not fully known. Furthermore, a small proportion of high-risk patients who are on low-dose aspirin (LDA) still go on to develop preeclampsia (PE). This longitudinal observational study will assess the immune profile in participants who are taking low dose aspirin (LDA) in pregnancy. As part of routine care, patients at high risk of developing preeclampsia are treated with LDA from 16 weeks gestation. The study will be conducted at Barts Health National Health Service (NHS) Trust. The study population will comprise of 2 groups of participants: 1. Those who respond to LDA and do not develop preeclampsia (responders) 2. Participants who do not respond to LDA and develop preeclampsia (non responders) Participants will be consented at their booking appointment. Participants will be eligible if they have a singleton pregnancy and are aged over 18 years. They will have an additional blood sample taken at 12, 20, 28 and 36 weeks gestation. The blood samples will be tested to assess immune cell function, metabolism and genetics. This will identify cumulative changes in immunobiology at key time points in pregnancy.

Status (registry)
Completed
Study type
Observational
Enrollment
35 (actual)
First submitted
21 May 2021
Start date
27 Apr 2022
Primary completion date
31 Dec 2025
Lead sponsor
Queen Mary University of London
NCT number
NCT04974892

What you commit to

  • Study type: Observational
  • Participants enrolled: 35
  • From 27 Apr 2022 to the primary completion date, 31 Dec 2025
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Other

  • Unwilling or unable to give consent
  • Participants who are unable to understand written English

Who the study is looking for

  • Age 18-60 years
  • Singleton pregnancy
  • Live fetus at 11-13 weeks of gestation
  • Informed, written consent
  • Upper age of 60 years
  • Patient taking low dose aspirin as standard of care

Age in the registry: 18 years to - · Sex: Female · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Barts Health NHS Trust , The Royal London Hospital
Coordinator of this site? Confirm its status
LondonUnited KingdomUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.