Dose Comparison of Amino Acids on Growth in Premature Neonates
|First Received Date ICMJE||July 11, 2005|
|Last Updated Date||September 27, 2006|
|Start Date ICMJE||August 2005|
|Primary Completion Date||Not Provided|
|Current Primary Outcome Measures ICMJE
||The primary outcome is growth velocity for first 28 days of life calculated as: weight gain, head circumference, length|
|Original Primary Outcome Measures ICMJE||Same as current|
|Change History||Complete list of historical versions of study NCT00120926 on ClinicalTrials.gov Archive Site|
|Current Secondary Outcome Measures ICMJE
||Secondary outcomes include serum amino acid profiles measured on: day 7 of life, day 28 of life|
|Original Secondary Outcome Measures ICMJE||Same as current|
|Current Other Outcome Measures ICMJE||Not Provided|
|Original Other Outcome Measures ICMJE||Not Provided|
|Brief Title ICMJE||Dose Comparison of Amino Acids on Growth in Premature Neonates|
|Official Title ICMJE||Randomized Control Trial Evaluating the Effect of Two Different Doses of Amino Acids on Growth and Serum Amino Acids in Premature Neonates Admitted to the NICU|
Malnutrition is a common problem in the neonatal intensive care unit. Recent studies indicate that prematurely born neonates commonly develop a severe nutritional deficit during the first weeks after birth, referred to as extrauterine growth restriction. Despite an increase in growth during the second month of hospitalization, many neonates are ultimately discharged home having grown inadequately. The early nutritional deficit affects weight gain as well as growth in length and head circumference.
Growth measurements such as weight, length, and head circumference, however, are macroscopic measures of nutritional status and underestimate the physiologic consequences of prolonged nutritional deprivation. Energy and micronutrient deficiencies alter growth at a cellular and tissue level before macroscopic measures are altered. In the brain, for instance, energy is required for cell division and neuronal growth, glial cell function, and myelination. Energy deprivation may consequently alter neuronal function and growth, resulting in adverse neurodevelopmental outcomes.
Immunocompetence also appears to be sensitive to the untoward effects of energy and nutritional deficiency. Malnourished neonates often exhibit immune deficiencies related to inadequate protein intake that compound an already immature immune system. Such immunodeficiency results in susceptibility to infectious agents that creates substantial morbidity and mortality to the course of intensive care for premature infants.
A recent study suggests that postnatal malnutrition and growth restriction are inevitable if current recommended dietary intakes are followed. Multicenter studies show that variation in dietary intake accounts for 45% of the variation in growth. Hence, efforts have focused on determining whether nutritional deficiency and the observed growth restriction of premature infants can be prevented through the use of more optimal nutritional intake. In addition, inadequate protein support may be a primary cause for growth failure.
Based on animal studies showing high in utero amino acid flux observed during the latter phase of gestation, Thureen et al have suggested the use of higher doses of amino acid supplementation in order to minimize growth restriction and improve outcomes of premature infants. However there are no large human trials that demonstrate that this approach promotes better growth or that it is safe. While small doses of amino acids may be inadequate to promote normal growth, high doses may lead to elevated serum amino acid levels and increase the occurrence of toxicity. Through the implementation of a multicenter, randomized trial and tandem mass spectrometry, the investigators propose to evaluate the effects of two distinct strategies of amino acid supplementation on serum amino acid profiles and growth of premature infants during the first 28 days of life.
|Detailed Description||Not Provided|
|Study Type ICMJE||Interventional|
|Study Phase||Phase 3|
|Study Design ICMJE||Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Primary Purpose: Treatment
|Intervention ICMJE||Drug: Parenteral Nutrition|
|Study Arm (s)||Not Provided|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Recruitment Status ICMJE||Completed|
|Completion Date||June 2006|
|Primary Completion Date||Not Provided|
|Eligibility Criteria ICMJE||
|Ages||up to 48 Hours|
|Accepts Healthy Volunteers||No|
|Contacts ICMJE||Contact information is only displayed when the study is recruiting subjects|
|Location Countries ICMJE||United States|
|NCT Number ICMJE||NCT00120926|
|Other Study ID Numbers ICMJE||PDX05-001|
|Has Data Monitoring Committee||Not Provided|
|Responsible Party||Not Provided|
|Study Sponsor ICMJE||Pediatrix Medical Group|
|Collaborators ICMJE||Not Provided|
|Information Provided By||Pediatrix Medical Group|
|Verification Date||September 2006|
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP