Could a daily aspirin save mothers and babies from hypertension risks?

NCT ID NCT04356326

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether taking 150 mg of aspirin daily, starting before 20 weeks of pregnancy, can prevent serious problems like preeclampsia, poor fetal growth, placental abruption, preterm birth, and death in pregnant women with chronic high blood pressure. About 500 women will be randomly assigned to receive either aspirin or a placebo. The goal is to find a safe, simple way to improve outcomes for both mother and baby.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
Aspirin 150 mg daily
What this could lead to
If it works, this could offer a simple, low-cost way to prevent life-threatening complications like preeclampsia and preterm birth in pregnant women with chronic hypertension.
What could go wrong
This is a large Phase 3 trial, but aspirin may not reduce risks enough to change practice, and there is a small chance of side effects like bleeding.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • CH Poissy

    RECRUITING

    Poissy, France

  • CHRU Lille

    NOT_YET_RECRUITING

    Lille, France

  • CHRU Nancy

    WITHDRAWN

    Nancy, France

  • CHU Antoine Béclère, AP-HP

    RECRUITING

    Clamart, France

  • CHU Bicêtre, AP-HP

    RECRUITING

    Le Kremlin-Bicêtre, France

  • CHU Bordeaux

    RECRUITING

    Bordeaux, France

  • CHU Caen

    WITHDRAWN

    Caen, 14000, France

  • CHU Cochin- Port Royal, AP-HP

    RECRUITING

    Paris, France

  • CHU Dijon

    RECRUITING

    Dijon, France

  • CHU Lyon

    RECRUITING

    Lyon, France

  • CHU Nantes

    RECRUITING

    Nantes, France

  • CHU Robert Débré, AP-HP

    RECRUITING

    Paris, France

  • CHU St Etienne

    RECRUITING

    Saint-Etienne, France

  • CHU Tenon

    RECRUITING

    Paris, France

  • CHU Toulouse

    NOT_YET_RECRUITING

    Toulouse, France

  • CHU Tours

    WITHDRAWN

    Tours, France

  • Centre Hospitalier Intercommunal de Créteil

    RECRUITING

    Créteil, 94000, France

  • Hôpital Louis Mourier, AP-HP

    RECRUITING

    Colombes, France

  • Hôpital St Joseph

    WITHDRAWN

    Marseille, France

  • Hôpital Trousseau, AP-HP

    RECRUITING

    Paris, France

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