Defining Normal Citrulline Levels as a Diagnostic Tool for Screening of

Status Terminated

Clinical Trial Summary

Since the first description of citrulline as a potential marker for intestinal function in 1998, its use has been investigated in a variety of disease processes including Short Bowel Syndrome, Celiac disease, chemotherapy and radiation induced intestinal injury, infections producing intestinal cytopathic effects like Adenovirus, and predicting rejection in intestinal transplantation. The use of citrulline levels as a diagnostic tool to predict gastrointestinal disease in the premature population has not been properly addressed.

The introduction of enteral nutrition in the premature infant is a process of trial and error, knowing that the immaturity of the gastrointestinal system may lead to frequent episodes of feeding intolerance. This is augmented by the fear of the development of necrotizing enterocolitis (NEC) once feeds are commenced. NEC is a condition characterized by disruption of the intestinal epithelial barrier, a pathogenic process shared with some of the conditions mentioned above for which citrulline has proven clinically useful.

A normal pattern of citrulline production has not been established in the premature population. Previous studies have shown decreased levels of glutamine and arginine in premature infants up to 10 days prior to the development of necrotizing enterocolitis. Glutamine and arginine are two amino acids closely involved in the synthesis and catabolism of citrulline.

The investigators therefore hypothesize that defining a normal pattern of citrulline production in the premature population may prove to be a clinically useful diagnostic tool to screen for gastrointestinal disease.

Clinical Trial Description

The use of citrulline levels as a diagnostic tool to predict gastrointestinal disease in the premature population has not been properly addressed. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01062828
Study type	Observational
Source	University of Miami
Contact
Status	Terminated
Phase	N/A
Start date	July 2009
Completion date	July 2017

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See also
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Active, not recruiting	`NCT03554278` - Alteration of Stool Microbiota in Preterm Infants With Anemia
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Not yet recruiting	`NCT03700957` - The Impact of Docosahexaenoic Acid on the Prevention of Necrotizing Enterocolitis in Preterm Neonates	N/A
Completed	`NCT03551600` - Splanchnic and Renal Tissue Oxygenation During Enteral Feedings in Neonates With Patent Ductus Arteriosus
Completed	`NCT01735578` - Splanchnic Tissue Oxygenation During Enteral Feedings in Anemic Premature Infants at Risk for Necrotizing Enterocolitis	N/A
Completed	`NCT01745510` - Enteral Administration of Docosahexaenoic Acid to Prevent Necrotizing Enterocolitis in Preterm Neonates	Phase 1/Phase 2
Unknown status	`NCT01807858` - The Effects of Synbiotics on Morbidity and Mortality in Preterm Infants	N/A

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Defining Normal Citrulline Levels as a Diagnostic Tool for Screening of Gastrointestinal Disease in Premature Infants

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms