- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04720690
Bioimpedence and Arterial Function Monitoring at Birth and in Infants (BAMBI)
January 20, 2021 updated by: Imperial College Healthcare NHS Trust
Bioimpedence and Arterial Function Monitoring at Birth and in Infants: the BAMBI Study
Babies may be born appropriately grown for gestational age (AGA, >10th centile) or small for gestational age (SGA, <10th centile).
Babies who are SGA and have evidence in utero of vascular compromise using antenatal doppler indices are classified as having fetal growth restriction (FGR).
Babies with FGR are at increased risk of cardiovascular disease in adult life.
Increased arterial stiffness and intima-media thickness are thought to mediate this risk in adults.
It is not known how early in life these changes can be robustly detected.
In addition, very little is known generally about how babies' hearts and arteries change in structure and function over the first year of life, whether affected by SGA or not.
This study aims to understand if there are differences in cardiac and arterial structure and function between babies born AGA or SGA.
Within the group of SGA babies, the study team will investigate whether FGR and maternal pre-eclampsia influence these measurements.
The effects gestational age on these parameters will be studied within all groups: half of the babies recruited will be <32 weeks gestational age (GA), and half will be ≥32 weeks GA.
Study participants will have further measurements at 3-6 months of life to assess if cardiac and arterial structure and function change in babies over the first year of life.
The study team will use the Vicorder device to measure arterial stiffness, and assess the feasibility of using this device in neonates.
The Vicorder will also be used to measure cardiac output.
The feasibility and validity of this device for this purpose will be investigated (Vicorder is not validated for cardiac output measurement in infants).
Vicorder cardiac output results will be compared to echocardiography and bioimpedence technology (using the NICaS monitor).
The study team will use ultrasound for arterial structure measurements of the carotid artery and aorta.
Study Overview
Status
Recruiting
Conditions
Study Type
Observational
Enrollment (Anticipated)
120
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Jayanta Banerjee, MD (Res), FRCPCH
- Phone Number: 020 3313 7308
- Email: j.banerjee@imperial.ac.uk
Study Locations
-
-
-
London, United Kingdom, W120HS
- Recruiting
- Queen Charlotte's and Chelsea Hospital
-
Contact:
- Jayanta Banerjee, MD (Res), FRCPCH
- Phone Number: 020 3313 7308
- Email: j.banerjee@imperial.ac.uk
-
London, United Kingdom, W21NY
- Recruiting
- St Mary's Hospital
-
Contact:
- Jayanta Banerjee, MD (Res), FRCPCH
- Phone Number: 020 3313 7308
- Email: j.banerjee@imperial.ac.uk
-
-
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.
Eligibility Criteria
Ages Eligible for Study
No older than 6 months (CHILD)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
All
Sampling Method
Non-Probability Sample
Study Population
All term and preterm infants born at the Imperial College Healthcare NHS trust can be included to the study after parental consent.
Description
Inclusion Criteria:
- Healthy term infants (including those with SGA+/-FGR) in the postnatal ward
- Term and Preterm infants (including those with SGA+/-FGR) admitted to the neonatal unit
- Written informed parental consent
Exclusion Criteria:
- Antenatal or postnatal diagnosis of complex/life-limiting congenital anomaly or genetic condition
- Infants with no realistic chance of survival
- Infants with fragile skin not permitting use of cuffs for research purposes
- Babies whose parents have a limited understanding of English will be excluded in the event that communication via NHS translation services is not possible due to clinical demands on these services
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Appropriately grown for age infants
40 appropriately grown for gestational age (AGA) infants.
20 will be <32 weeks, and 20 will be ≥32 weeks gestational age at birth.
|
Measurement of arterial stiffness and cardiac output
Measurement of cardiac output
Measurement of cardiac output; measurement of intima-media thickness of arteries
|
Small for gestational age infants
40 small for gestational age (SGA) infants.
20 will be <32 weeks, and 20 will be ≥32 weeks gestational age at birth.
|
Measurement of arterial stiffness and cardiac output
Measurement of cardiac output
Measurement of cardiac output; measurement of intima-media thickness of arteries
|
Fetal growth restricted infants
40 fetal growth restricted (FGR) infants.
20 will be <32 weeks, and 20 will be ≥32 weeks gestational age at birth.
|
Measurement of arterial stiffness and cardiac output
Measurement of cardiac output
Measurement of cardiac output; measurement of intima-media thickness of arteries
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Feasibility of arterial and cardiac function measurements: the proportion of babies from whom study measurements are successfully obtained.
Time Frame: 3 years
|
Feasibility of arterial and cardiac function measurements assessed through establishing from what proportion of babies the team is able to successfully obtain these measurements.
|
3 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Non-invasive measurement of arterial stiffness: brachial-femoral pulse wave velocity
Time Frame: 3 years
|
Brachial-femoral pulse wave velocity in metres per second (m/s) will be measured using the Vicorder and compared between neonates of different gestational age and birth weight groups at or near term corrected gestational age, and at 3-6 months of age.
|
3 years
|
Non-invasive measurement of arterial stiffness: augmentation index
Time Frame: 3 years
|
Augmentation index (%) will be measured using the Vicorder and compared between neonates of different gestational age and birth weight groups at or near term corrected gestational age, and at 3-6 months of age.
|
3 years
|
Arterial structure measurements
Time Frame: 3 years
|
The intima-media thickness of the carotid artery and abdominal aorta will be measured in micrometres (µm) using ultrasound at or near term corrected gestational age, and at 3-6 months of age.
Gestational age and birth weight groups will be compared at each time point.
|
3 years
|
Cardiac output measurements: comparison of neonatal and infant birth weight and gestational age cohorts
Time Frame: 3 years
|
Cardiac output in L/min and ml/min/kg will be measured using echocardiography, the NICaS monitor and the Vicorder.
Values obtained in different gestational age and birth weight groups will be compared at or near term corrected gestational age and at 3-6 months of age.
|
3 years
|
Cardiac output measurements: comparison of devices
Time Frame: 3 years
|
Cardiac output values in L/min and ml/min/kg obtained by each device (echocardiography, NICaS monitor and Vicorder) will be compared using correlation and Bland-Altman statistics.
|
3 years
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
December 1, 2020
Primary Completion (Anticipated)
December 1, 2023
Study Completion (Anticipated)
December 1, 2023
Study Registration Dates
First Submitted
January 8, 2021
First Submitted That Met QC Criteria
January 20, 2021
First Posted (Actual)
January 22, 2021
Study Record Updates
Last Update Posted (Actual)
January 22, 2021
Last Update Submitted That Met QC Criteria
January 20, 2021
Last Verified
January 1, 2021
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 20QC6217
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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