Determination of Lysine Requirement in the Parenterally Fed Neonate

August 1, 2013 updated by: Karen Chapman, The Hospital for Sick Children
The purpose of this study is to establish the parenteral lysine requirements for neonates.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

It is important to identify the appropriate level of lysine requirements for parenterally fed neonates as this amino acid is the limiting amino acid in the diet of neonates. Feeding lysine at requirement improves the likelihood that other amino acids will be utilized appropriately for building proteins. In addition, lysine plays a major role in calcium absorption, development of muscle proteins and in the production of hormones, enzymes and antibodies. We believe that the lysine requirement will be 158 mg/kg/day which is significantly lower than the current 267 and 327 mg/kg/d that is found in the current Trophamine and Primene parenteral solutions.

Study Type

Interventional

Enrollment (Actual)

6

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Ontario
      • Toronto, Ontario, Canada
        • The Hospital for Sick Children

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Clinically stable neonates on TPN
  • minimum of 2.5 g/kg/d protein and 85 - 90 kcal/kg/d)
  • Post conception age of ≥ 34 weeks gestation and appropriate for gestational age
  • Weight of ≥ 1.5 kg
  • NPO or ≤10% of total protein requirement consumed enterally

Exclusion Criteria:

  • Infants on mechanical ventilators, supplemental oxygen or who are receiving medications that would alter protein or energy metabolism (ie. corticosteroid therapy, etc)

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

  • Primary Purpose: Supportive Care
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Neonates
Sixteen neonates admitted to the Neonatal Intensive Care Unit (NICU) at the Hospital for Sick Children (SickKids) will be required for this study. The diagnoses will include, but are not limited to, the following: Trachea-esophageal fistula and/or esophageal atresia, Congenital diaphragmatic hernia, imperforate anus, Hirschsprung's disease, Malrotation with or without volvulus, Intestinal atresias, Gastroschisis, Omphalocele, Necrotizing enterocolitis, Respiratory distress syndrome.
Dietary supplement: Amino Acid Solution with different amount of Lysine
The infants will be placed on a standard Primene solution for the first 24 hours of the study to obtain baseline values. During the second 24 hours they will receive an amino acid solution that has a different amount of lysine currently found in Primene, all lipid, CHO, minerals, vitamins and trace elements will remain unchanged. The Parenteral lysine will be studied at the following intake levels: 100, 110, 120, 130, 135, 140, 145, 150 , 155, 165, 170, 180, 200, 230, 245, 260mg/kg/d. The minimum energy intake will be 85-90 kcal/kg/day.
Other Names:
  • Trophamine
  • Primene

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Oxydation of the Indicator Amino Acid L-[1-13C] phenylalanine will be measured through urine samples to determine urinary phenylalanine enrichment
Time Frame: 2 days
2 days

Secondary Outcome Measures

Outcome Measure
Time Frame
Breath samples will be collected for the measurement of CO2 enrichment in expired air
Time Frame: 2 days
2 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

The Hospital for Sick Children

Investigators

  • Principal Investigator: Karen Chapman, RN, PhD (c), The Hospital for Sick Children, Toronto, Canada

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

July 1, 2008

Primary Completion (Actual)

June 1, 2010

Study Completion (Actual)

June 1, 2010

Study Registration Dates

First Submitted

October 23, 2008

First Submitted That Met QC Criteria

October 23, 2008

First Posted (Estimate)

October 24, 2008

Study Record Updates

Last Update Posted (Estimate)

August 5, 2013

Last Update Submitted That Met QC Criteria

August 1, 2013

Last Verified

August 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 0019880597

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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