Maternal Body Composition Regulates Placental Function and Fetal Growth

eIRB study # 11175, PI:  Nicole Marshall, MD, MCR

Hablas Español? Clickea aquí.

Trial Status:  Actively enrolling

Researchers at the OHSU Center for Women's Health are conducting a study to learn more about how a pregnant woman's body type (amount of muscle and fat) and food choices affect the nutrients transported from the placenta to the baby. We want to learn how this impacts the baby's growth through the first year of life, and see if there are differences in growth between male and female babies. 

Why is this study being done?

One in five women who deliver in the United States is obese. Babies born to obese women are at risk for being at the extremes of birth weight (>10 pounds or <5.5 pounds) and developing chronic diseases as adults. Due to their rapid growth in utero, boys are at a greater risk of undernourishment. 

There are 2 parts to this observational study:
Part 1 enrolls women at the beginning of their pregnancy, and their babies. 
Part 2 enrolls women at full-term, and their babies. 

The purpose of this study is:

  • To understand how a pregnant woman's body type (amount of muscle and fat) and food choices affect the nutrients transported from the placenta to the baby. 
  • To learn how this impacts the baby's growth through the first year of life. 
  • To see if there are differences in growth between male and female babies.

Who is eligible to participate?

  • Women who are at least 18 years old
  • Pregnant with a single baby
  • Have general good health

What is the compensation for this study?

Participants who enroll in Part 1 will receive up to $120. Participants who enroll in Part 2 will receive up to $70.

Who do I contact for more information?

To find out more information and to see if you may qualify to participate, contact Jessica Mezmar at 503 494-8748, or e-mail