RECRUITING

Maternal Left Lateral Position in Fetal Growth Restriction

Description

The goal of this clinical trial is to learn if maternal left-lateral positioning in pregnancy works to treat fetal growth restriction. This study will also help us learn about the effects of left-lateral positioning on maternal metabolomics, maternal mental health, fetal cardiac function, and delivery outcomes. The main questions it aims to answer are: * Does maternal left-lateral position in a pregnancy with fetal growth restriction improve the baby's growth? * How are maternal metabolomics, delivery outcomes, maternal mental health, and fetal cardiac function impacted by maternal left-lateral position? Researchers will compare the intervention group to pregnancies with fetal growth restriction that receive standard of care (without left-lateral positioning) to see if left-lateral position improves fetal biometry in fetal growth restriction. Participants will: * Practice left-lateral position every day for 4 hours (cumulatively) with 10-mins stretching after every hour of left-lateral position, or continue to receive standard of care * Visit the clinic once after 4 weeks for a follow-up research visit, and at the time of delivery Tracking of the physical activity and adherence to left-lateral position at home in intervention group A will be done through a fitbit (smart watch) given during enrollment. A fitbit will also be given to participants in intervention group B, receiving standard of care, to monitor their physical activity trends at home.

Study Overview

Study Details

Study overview

The goal of this clinical trial is to learn if maternal left-lateral positioning in pregnancy works to treat fetal growth restriction. This study will also help us learn about the effects of left-lateral positioning on maternal metabolomics, maternal mental health, fetal cardiac function, and delivery outcomes. The main questions it aims to answer are: * Does maternal left-lateral position in a pregnancy with fetal growth restriction improve the baby's growth? * How are maternal metabolomics, delivery outcomes, maternal mental health, and fetal cardiac function impacted by maternal left-lateral position? Researchers will compare the intervention group to pregnancies with fetal growth restriction that receive standard of care (without left-lateral positioning) to see if left-lateral position improves fetal biometry in fetal growth restriction. Participants will: * Practice left-lateral position every day for 4 hours (cumulatively) with 10-mins stretching after every hour of left-lateral position, or continue to receive standard of care * Visit the clinic once after 4 weeks for a follow-up research visit, and at the time of delivery Tracking of the physical activity and adherence to left-lateral position at home in intervention group A will be done through a fitbit (smart watch) given during enrollment. A fitbit will also be given to participants in intervention group B, receiving standard of care, to monitor their physical activity trends at home.

Impact of Maternal Left-Lateral Recumbent Positioning in Pregnancies With Fetal Growth Restriction

Maternal Left Lateral Position in Fetal Growth Restriction

Condition
Fetal Growth Restriction
Intervention / Treatment

-

Contacts and Locations

Aurora

UCHealth Prenatal Diagnosis and Genetics Clinic - Anschutz Medical Campus, Aurora, Colorado, United States, 80045

Denver

CU John C. Hobbins Perinatal Center, Denver, Colorado, United States, 80202

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • * Pregnant persons between 18 - 65 years of age, with a diagnosis of fetal growth restriction, with an estimated fetal weight less than tenth percentile
  • * Participants with a singleton pregnancy between 24- and 34-weeks' gestational age
  • * Participants with fluency in English or Spanish language
  • * Patients with a known history of deep vein thrombosis, pulmonary embolism, or hypercoagulability disorder
  • * Patients with a pre-pregnancy BMI greater than 40
  • * Pregnancy with severe abnormality in umbilical artery Doppler flow, including absent end-diastolic flow (AEDF) and reverse end-diastolic flow (REDF)
  • * Patients receiving anticoagulation therapy
  • * Pregnancy with suspected chromosomal anomalies or a multifetal pregnancy
  • * Patients with an active smoking status during pregnancy

Ages Eligible for Study

18 Years to 65 Years

Sexes Eligible for Study

FEMALE

Accepts Healthy Volunteers

No

Collaborators and Investigators

University of Colorado, Denver,

Manesha Putra, MD, PRINCIPAL_INVESTIGATOR, University of Colorado Anschutz, Department of Obstetrics and Gynecology

Study Record Dates

2026-12-03