Aspirin for Preeclampsia and Pregnancy Loss Prevention

Early Double Low-Dose Aspirin to Reduce Preeclampsia and Miscarriage: a Global Approach RCT

NIH-funded research University of Pennsylvania · NIH-11158899

This project explores if taking a slightly higher dose of aspirin very early in pregnancy can help prevent both preeclampsia and pregnancy loss.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Pennsylvania NIH-funded
Lab location1 site (Philadelphia, United States)
Project IDNIH-11158899 on NIH RePORTER

What this research studies

We are looking into whether taking 162 mg of aspirin daily, starting as soon as you know you are pregnant (up to 6 weeks' gestation), can offer better protection. Current guidelines suggest a lower dose of aspirin starting later in pregnancy to prevent preeclampsia, but we believe an earlier start with a slightly higher dose might also help prevent pregnancy loss. This work involves a randomized comparison to see if this new approach is more effective. Participants will be recruited through the Penn Medicine system to ensure early detection of pregnancy and timely start of the study intervention.

Who could benefit from this research

Good fit: Ideal candidates are pregnant individuals who receive a positive pregnancy test early in their pregnancy, up to 6 weeks' gestation.

Not a fit: Patients who are already past 6 weeks' gestation or who have contraindications to aspirin may not be suitable for this specific approach.

Why it matters

Potential benefit: If successful, this approach could offer a simple and effective way to reduce the risks of preeclampsia and pregnancy loss for many pregnant individuals.

How similar studies have performed: Aspirin is already recommended for preeclampsia prevention, and this work builds on existing data suggesting that earlier and higher doses might offer greater protection, making this a novel extension of a known therapy.

Where this research is happening

Philadelphia, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 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.