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Phenylalanine, Methionine and Histidine Requirements in TPN Fed Neonates

RecruitingNAAges 1 Day - 28 DaysAllThe Hospital for Sick Children
NCT05562310 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

This is a single center project assessing the requirements for three essential amino acids in TPN fed neonates. Using the Carbon Oxidation method (indicator amino oxidation and direct amino acid oxidation method), the investigators will determine the requirement of each of the 3 amino acids. The investigators will first determine the requirement for Phenylalanine, then Methionine and finally Histidine. The investigators will recruit 18 - 20 babies per amino acid study. Breath and urine samples will be collected to determine the oxidation of the indicator amino acid. The response of the indicator amino acid to changes in intake of the test amino acid (phenylalanine, methionine, and histidine) will be analyzed by bi-phase linear mixed effect model to determine the breakpoint or mean requirement for each amino acid. It is hypothesized that the requirement for phenylalanine, methionine and

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📋 Eligibility rules (as published)
Inclusion Criteria: 1. Stable preterm babies that are growing and fully TPN fed (at least 90% of calories and protein). 2. TPN providing adequate calories and protein as determined by attending physician and dietitian. 3. Babies born ≥ 28 weeks gestation, 4. ≤ 28 days chronological age at the time of the study, 5. Birth weight and length appropriate for gestational age, 6. Medically stable as determined by normal blood results and lack of a fever or infection, 7. At least 3 days after surgery, if the baby had a surgery. Exclusion Criteria: 1. Babies on mechanical ventilation, on low flow oxygen and CPAP. 2. Small for gestational age, 3. On medications known to affect protein and amino acid metabolism, 4. Documented infection, fever 5. Unstable medical condition 6. Receiving enteral feeding providing \> 10% of protein intake.
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What it tests

  • Total parenteral nutrition (TPN). This is total nutrition provided by central vein.
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Where

1 site
Glenda Courtney-Martin
Toronto, Canada
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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