How HIV and HIV medicines during pregnancy affect the placenta and baby’s birth weight

Impact of in utero HIV and antiretroviral exposure on the placenta and birth weight

NIH-funded research Massachusetts General Hospital · NIH-11254902

This project measures HIV medicine levels in pregnant people and newborns to link those exposures with placental changes and babies' birth weights.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionMassachusetts General Hospital NIH-funded
Lab location1 site (Boston, United States)
Project IDNIH-11254902 on NIH RePORTER

What this research studies

You would provide a small dried blood spot sample during pregnancy and, at delivery, your baby's hair and the placenta would be collected. Researchers will measure antiretroviral drug levels in those samples and examine the placenta for structural or cellular changes. The project compares pregnancies of people with HIV on ART and people without HIV exposed to PrEP to look for patterns tied to birth weight. The goal is to use objective drug measurements to clarify possible effects of HIV medicines taken during pregnancy.

Who could benefit from this research

Good fit: Pregnant people taking antiretroviral drugs for HIV treatment or prevention (PrEP) and their newborns would be ideal candidates.

Not a fit: People who are not pregnant or who are pregnant but not taking any antiretroviral medications would not be the focus and likely would not benefit directly.

Why it matters

Potential benefit: If successful, this work could help doctors choose and counsel about HIV medicines in pregnancy to reduce risks to the placenta and newborn weight.

How similar studies have performed: Antiretroviral treatment in pregnancy is proven to prevent infant HIV, but linking objective drug-level measurements with placental changes and birth weight is relatively new and not well established.

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 Acquired Immune Deficiency Syndrome VirusAcquired Immunodeficiency Syndrome Virus
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.