Investigating how different doses of aspirin affect pregnancy outcomes

Dose based aspirin pharmacokinetics and pharmacodynamics in pregnancy and association with pregnancy outcomes

NIH-funded research Thomas Jefferson University · NIH-11057311

This study is looking at how different doses of aspirin can help improve pregnancy outcomes for women at high risk, by seeing if it can prevent issues like preeclampsia and preterm birth.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionThomas Jefferson University NIH-funded
Lab location1 site (Philadelphia, United States)
Project IDNIH-11057311 on NIH RePORTER

What this research studies

This research focuses on understanding how aspirin, commonly recommended for high-risk pregnancies, impacts pregnancy outcomes. It aims to determine the effectiveness of different doses of aspirin in preventing complications like preeclampsia and preterm birth. Participants will be randomly assigned to receive either 81mg or 162mg of aspirin daily, starting early in their pregnancy and continuing until late gestation. The study will assess how well aspirin works in the body and its relationship to pregnancy outcomes through various tests and analyses.

Who could benefit from this research

Good fit: Ideal candidates for this research are women with high-risk singleton pregnancies who are less than 16 weeks pregnant.

Not a fit: Patients with low-risk pregnancies or those who are not pregnant may not receive any benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to improved aspirin dosing strategies that enhance pregnancy outcomes for high-risk women.

How similar studies have performed: Previous research has shown promising results in using aspirin to improve pregnancy outcomes, but this study aims to refine dosing specifically for high-risk pregnancies.

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.