Phthalate exposure during pregnancy and after birth and mothers' heart and metabolic health

Pregnancy and postpartum as vulnerable exposure windows: phthalates and maternal cardiometabolic health

NIH-funded research Harvard University D/b/a Harvard School of Public Health · NIH-11312583

Researchers are looking at whether common plastics chemicals called phthalates during pregnancy and the postpartum period are linked to changes in mothers' weight, blood sugar, inflammation, and heart health.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionHarvard University D/b/a Harvard School of Public Health NIH-funded
Lab location1 site (Boston, United States)
Project IDNIH-11312583 on NIH RePORTER

What this research studies

If I join, the team will measure phthalate breakdown products in my blood and urine during pregnancy and after my baby is born and will track my weight, blood sugar, cholesterol, inflammation (like C-reactive protein), and other health measures over time. They will use samples and data from multiple pregnancy groups and follow people from early pregnancy into the postpartum period to see when exposure matters most. The study uses stored biological samples, clinic visits, and questionnaires to build a detailed picture of exposure and health changes. The goal is to identify times when mothers are most vulnerable so guidance can better protect long-term heart and metabolic health.

Who could benefit from this research

Good fit: People who are pregnant (especially in early or late pregnancy) or recently postpartum who can provide urine/blood samples and health information would be the best fit.

Not a fit: People who are not pregnant or far beyond the postpartum period, or those seeking immediate clinical treatment for diabetes or heart disease, are unlikely to get direct medical benefit from participating.

Why it matters

Potential benefit: If successful, this work could help identify chemical exposures that raise mothers' risk of diabetes or cardiovascular disease and inform guidance to reduce those risks during pregnancy and postpartum.

How similar studies have performed: Prior pregnancy cohort research has linked phthalates to excessive gestational weight gain, gestational diabetes, and impaired glucose tolerance, but long-term effects and precise vulnerable windows remain unclear.

Where this research is happening

Boston, 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.
Conditions Adult-Onset Diabetes Mellitus
Last reviewed 2026-06-10 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.