Substrate Cycling in Energy Metabolism
Public ClinicalTrials.gov record NCT00361751. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
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Official title
Phase 2 Trial to Examine the Metabolic Effects of Fenofibrate in Burned Patients
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Insulin resistance and hyperglycemia contribute to negative outcomes in burned patients. We will assess insulin sensitivity in traditional terms of glucose metabolism, and with regard to the responsiveness of both muscle and liver protein metabolism, in severely burned patients. Plasma free fatty acid (FFA) and tissue TG levels will be manipulated via inhibition of peripheral lipolysis with nicotinic acid or activation of plasma lipoprotein lipase activity with heparin, stimulation of tissue fatty acid oxidation and thus reduction of tissue TG with the peroxisome proliferate-activated receptor (PPAR) alpha agonist fenofibrate. Methodological approaches will include stable isotope tracer techniques to quantify kinetic responses of protein, glucose and lipid metabolism in vivo, quantification of intracellular stores of TG and glycogen by means of magnetic resonance spectroscopy (MRS), as well as quantitative analysis of tissue levels of active products of fatty acids, key intermediates of the insulin signaling pathway, glycogen, the enzyme activities of citrate synthase and glycogen synthase and the activity of the muscle mitochondria. These studies will clarify the physiological and clinical significance of the alterations of tissue lipid metabolism that occur after burn injury, thereby forming the basis for new therapeutic approaches not only in this specific clinical condition but in other clinical circumstances in which hepatic and/or muscle TG is elevated. We will investigate the general hypothesis that the accumulation of intracellular TG in liver and muscle either directly causes insulin resistance in those tissues or serves as an indictor of the intracellular accumulation of active fatty acid products, such as fatty acyl CoA and diacylglycerol, which in turn disrupt insulin action. The following specific hypotheses will be investigated: 1. Intracellular TG is elevated in both muscle and liver in severely burned patients. The reduction of the fat in the liver and the insulin resistance will improve clinical outcomes, glucose and protein metabolism. 2. The insulin signaling pathway, as reflected by phosphoinositol-3-kinase (PI3K) and PKC activity, is impaired in tissues with elevated TG. 3. Fatty acids, or their active intracellular products, are the direct inhibitors of insulin action, rather than the tissue TG itself.
Study identification
- NCT ID
- NCT00361751
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 40 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 4 Years to 18 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Apr 30, 2003
- Primary completion
- Not listed
- Completion
- Apr 30, 2005
- Last update posted
- Feb 14, 2010
2003 – 2005
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Shriners Hospital for CHildren | Galveston | Texas | 77550 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00361751, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Feb 14, 2010 · Synced Sep 4, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00361751 live on ClinicalTrials.gov.