- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01549444
Renin and Aldosterone Levels in the Preterm Neonate At Risk for Hypertension
Renin and Aldosterone Levels in the Preterm Neonate At Risk for Hypertension (RENAL HIT Study)
The purpose of this study is to find out if mothers with high blood pressure (Hypertension) and/or diabetes have babies with high levels of different substances (that help to regulate blood pressure, called Renin and Aldosterone) in their blood. The investigators are also trying to determine if these babies have higher blood pressure than those babies born to mothers without high blood pressure or diabetes, during the first year of life.
The investigators will measure your baby's blood pressure once a day for the first 4 days, at 1 week of age, and then once per week until your baby is discharged. The investigators will also measure the blood pressure after discharge at 4 and 10 months of age, either on the day of your baby's follow-up appointment in the Neonatal Follow-up Clinic or at a visit to our Outpatient Nephrology Clinic, both at CHEO.
Study Overview
Status
Intervention / Treatment
Detailed Description
We will compare two groups of babies born between 26+0 and 34+0 weeks gestation.Group 1 is the babies born to mothers with diabetes and/or high blood pressure, and babies that are small for dates. Group 2 are babies that are 26 to 34 weeks of age, that are born to mothers without these problems.
In the study we will measure the baby's blood pressure once a day for the first 4 days, at 1 week of age, and then once per week until the baby is discharged. We will also measure the blood pressure after discharge at 4 and 10 months of age, either on the day of your baby's follow-up appointment in the Neonatal Follow-up Clinic or at a visit to our Outpatient Nephrology Clinic, both at CHEO.
As blood tests will be done. A small amount of extra blood, 0.75ml - 1.5 ml (about 1/6 -1/3 of a teaspoon, or approximately 1 ml) will be collected for measurement of the blood substances we are studying will be collected when the baby has their regular non-study blood work.
This will be done within six hours of birth and then again at 2-3 weeks of life.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Ontario
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Ottawa, Ontario, Canada, K1H 8L1
- Children's Hospital of Eastern Ontario
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Ottawa, Ontario, Canada, K1H 8L6
- The Ottawa Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Infants < 6 hours of age who require NICU admission
- Infants 26+0 to 34+0 weeks gestation.
Exclusion Criteria:
Immediate Exclusion from Enrollment
- Maternal treatment with drugs known to be teratogenic and cause nephrotoxicity in the fetus (i.e. ACE-Inhibitor).
- Infants with known congenital anomalies and/or renal anomalies.
- Infants with known chromosomal anomalies.
- Infants with severe asphyxia defined as cord pH < 7.0, 5 min Apgar < 3, and urine positive for blood.
- Infants with a known or suspected blood loss at birth (ie: uterine rupture, placental abruption, bleeding placenta previa, or post-natal blood loss in the delivery room).
- Infants who will not receive follow-up care in Ottawa upon discharge from the NICU (ie: live out of town).
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Group 1
Babies of mothers that have diabetes and/or hypertension and babies that are small for dates
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Group 2
Babies born to mothers without diabetes and/or hypertension and babies that are correct size for gestational age
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Renin and Aldosterone levels corelated to BP measurements
Time Frame: at birth and at 2-3 weeks of age
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We hypothesize that infants with higher levels of RE and ALDO at birth and in the early neonatal period will have a higher BP during the first year of life.
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at birth and at 2-3 weeks of age
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Blood pressure measurements
Time Frame: in the first month of life, then at 4 and10 months of age
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We hypothesize that premature infants of mothers with hypertension (HT) and/or diabetes, or who are significantly growth restricted will have a higher blood pressure (BP) in the first year of life.
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in the first month of life, then at 4 and10 months of age
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Collaborators and Investigators
Investigators
- Principal Investigator: Erika Bariciak, MD, The Ottawa Hospital
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- Renin HIT study-01
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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