Beyond MARS: Magnetic Resonance Study: A Novel Assessment of Placental

Status Not yet recruiting

Clinical Trial Summary

The purpose of this study is to evaluate the flow of oxygen and blood necessary for nutrient transfer across the placenta during the second and third trimesters in pregnancy in women who are obese before pregnancy compared to women who have an average weight before pregnancy. This study will evaluate blood flow across the placenta by functional Magnetic Resonance Imaging (fMRI) using arterial spin labeling (ASL). The investigators hypothesize that there will be differences in placental oxygenation and blood flow among women with obesity as compared to those with normal weight. Participants will be asked to complete Magnetic Resonance Imaging scans (MRIs), the first in the second trimester at 20-24 weeks and the second in the third trimester at 30-34 weeks.

Clinical Trial Description

The transfer of oxygen and nutrients from the mother to the baby across the placenta is essential to successful pregnancy outcomes. Conversely, poor transfer of oxygen from the mother to the baby through the placenta is associated with adverse outcomes, including poor fetal growth, preterm delivery, and stillbirth. Babies need oxygen to maintain good health. Babies born to women who are obese before pregnancy have a higher risk of experiencing health problems in pregnancy and long-term health problems such as metabolic syndrome, obesity, and diabetes. Obesity has continued to increase in the United States over the past decades, and a quarter of pregnancy complications, such as preterm birth, gestational diabetes, hypertension, and large gestational infants, can be attributed to maternal obesity. In this study, the investigators propose using a novel method, arterial spin labeling (ASL)) to measure placental blood flow. The study aims to evaluate the feasibility and reliability of assessing placental blood flow by this novel method. The investigators will also evaluate the mean global placental perfusion of second and third trimester placentas among obese women as compared to those with a normal weight before pregnancy. To provide an innovative and comprehensive evaluation of placental oxygen delivery and insights into the delivery of nutrients, investigators will compare global placental perfusion of second and third trimester placentas with measurements of placental oxygenation by R2* relaxation rates. ;

Study Design

Related Conditions & MeSH terms

Placenta Diseases

Clinical Trial Details

NCT number	NCT06314009
Study type	Observational
Source	NorthShore University HealthSystem
Contact	Olivert Mbah
Phone	847-570-2243
Email	OMbah@northshore.org
Status	Not yet recruiting
Phase
Start date	March 2024
Completion date	December 2026

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Beyond MARS: Magnetic Resonance Study: A Novel Assessment of Placental Perfusion During Pregnancy

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms