NCT06919692 · University of Colorado, Denver
Maternal Left Lateral Position in Fetal Growth Restriction
What this study is about
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.
View original scientific 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.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion 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
Exclusion criteria
- 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
Where
- Aurora, Colorado
- Denver, Colorado
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 17, 2025 · Source of record for eligibility and locations