Clinical trial Recruiting at 1 site Phase 3 Interventional Ages 18 to 43 Women only

Preventing pre-eclampsia with low-dose aspirin in women after frozen embryo transfer

Official title: A Prospective Interventional Randomized Controlled Trial to Assess the Effect of Low Dose Acetylsalicylic Acid As a Preventive Treatment of Pre-eclampsia in Pregnant Women Who Underwent Frozen Embryo Transfer

Run by Centre Hospitalier Universitaire de Liege · NCT05460416 · Data updated 2026-11-12

This study is testing if taking low-dose aspirin can help prevent pre-eclampsia in pregnant women who have had a frozen embryo transfer.

More Hypertension in Pregnancy trials

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years to 43 Years
SexWomen only
Enrollment276 (estimated)
SponsorCentre Hospitalier Universitaire de Liege
Academic / other
Locations1 site (Liège)
StatusRecruiting
StartedOctober 25, 2022
Main results expectedDecember 31, 2025
Study endsJune 30, 2026
Registry record updatedFebruary 18, 2025
Trial IDNCT05460416 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are healthy women aged 18 to 43 who are planning a frozen embryo transfer and have a confirmed pregnancy at six weeks.

Probably not a fit

Patients with risk factors for pre-eclampsia or contraindications to acetylsalicylic acid will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial is a prospective, multicentric, interventional randomized controlled trial aimed at evaluating the effectiveness of low-dose acetylsalicylic acid as a preventive treatment for pre-eclampsia in pregnant women who have undergone frozen embryo transfer. Participants will be randomly assigned to receive either the treatment or no treatment after confirming an intrauterine pregnancy at six weeks. The primary goal is to assess the incidence of pre-eclampsia in both groups, with regular follow-ups to monitor health outcomes throughout the pregnancy. The study will include women aged 18 to 43 who meet specific eligibility criteria and have provided informed consent.

Why it matters

Potential benefit: If successful, this treatment could significantly reduce the incidence of pre-eclampsia in women undergoing frozen embryo transfer.

How similar studies have gone: Other studies have shown promising results with low-dose aspirin in preventing pre-eclampsia, suggesting this approach may be effective.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Healthy women from \[18 - 43\] years-old, planned for a frozen embryo transfer, with natural and modified natural or HRT cycle
* Who have given their informed consent
* Who have a confirmed pregnancy at week 6 of amenorrhea.

Exclusion Criteria:

* Women presenting one risk factor for preeclampsia: multiple pregnancy, history of preeclampsia, BMI \> 30, lupus syndrome, preexistent proteinuria, non-treated chronic high blood pressure (\>140/90), antiphospholipid antibody syndrome, diabetes (fasting blood sugar \>126mg/dl)
* Contraindication to acetylsalicylic acid (at risk of active hemorrhage (like hemophilia, …); at risk of or who have a gastro-duodenal ulcer; at risk or how have a terminal renal or hepatic in-sufficiency (only if acetylsalicylic acid is given at high dose)
* Already treated with acetylsalicylic acid
* Treatment with anticoagulants or non-steroid anti-inflammatory drugs

Where it's running

  • Centre Hospitalier Universitaire de Liège site Citadelle
    Liège, Belgium
    Recruiting

Study contacts

  • Principal investigator: Laurie Henry — Centre Hospitalier Régional de la Citadelle
  • Study coordinator: Julie Collée
  • Email: julie.collee@uliege.be
  • Phone: +32498973386

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.