Trial record 1 of 4 for:    "Mitochondrial trifunctional protein deficiency"
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High Protein Diet in Patients With Long-chain Fatty Acid Oxidation Disorders

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Melanie B Gillingham, Oregon Health and Science University
ClinicalTrials.gov Identifier:
NCT01494051
First received: December 14, 2011
Last updated: December 15, 2011
Last verified: December 2011
  Purpose

The study also determines if eating a diet higher in protein alters body composition, energy balance and metabolic control among patients with a long-chain fatty acid oxidation disorder.


Condition Intervention Phase
Very Long-chain Acyl-CoA Dehydrogenase Deficiency
Trifunctional Protein Deficiency
Carnitine Palmitoyltransferase 2 Deficiency
Long-chain 3-hydroxyacyl-CoA Dehydrogenase Deficiency
Behavioral: Diet counseling
Phase 1
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Fatty Acid Oxidation and Body Weight Regulation in Long-chain Fatty Acid Oxidation Disorders.

Resource links provided by NLM:


Further study details as provided by Oregon Health and Science University:

Primary Outcome Measures:
  • energy expenditure [ Time Frame: change from baseline after 4 months of treatment ] [ Designated as safety issue: No ]
    does energy expenditure and substrate oxidation differ between subjects randomized to the high carbohydrate versus the high protein diet?


Secondary Outcome Measures:
  • body composition [ Time Frame: change from baseline to 4 months of treatment ] [ Designated as safety issue: No ]
    does body composition change more among subjects randomized to the high protein diet compared to the high carbohydrate diet?


Enrollment: 13
Study Start Date: January 2006
Study Completion Date: January 2010
Primary Completion Date: September 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: High carbohydrate diet
Diet composition of 10% long-chain fatty acids, 20% medium-chain triglycerides, 12% protein and 68% carbohydrate is the current standard of care in long-chain fatty acid oxidation disorders.
Behavioral: Diet counseling
Subjects counseled how to follow either the high carbohydrate diet or the high protein diet for 4 months at home.
Other Names:
  • low fat diet
  • high carbohydrate diet
  • high protein diet
Experimental: High protein diet
Diet composition of 10% long-chain fatty acids, 20% medium chain triglycerides, 25% protein and 45% carbohydrate is the comparison diet. Fat content is the same between treatments; only the carbohydrate to protein ratio varies.
Behavioral: Diet counseling
Subjects counseled how to follow either the high carbohydrate diet or the high protein diet for 4 months at home.
Other Names:
  • low fat diet
  • high carbohydrate diet
  • high protein diet

Detailed Description:

At baseline, the amount of muscle and fat in the whole body and inside the liver and muscle will be measured. All subjects will complete a moderate treadmill exercise test and a test to determine how they use sugar (oral glucose tolerance test). The amount and type of energy burned by each subject will be measured. Subjects will be randomly assigned to follow either a high carbohydrate diet or a reduced carbohydrate, high protein diet for 4 months. At the end of 4 months, the tests will be repeated.

  Eligibility

Ages Eligible for Study:   7 Years to 45 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • diagnosis of a long-chain fatty acid oxidation disorder including VLCAD, CPT2, LCHAD or TFP deficiency
  • 7 years old or greater
  • able to comply with diet guidelines

Exclusion Criteria:

  • pregnant
  • enrolled in another study that alters diet composition
  • cannot complete treadmill exercise study
  Contacts and Locations
No Contacts or Locations Provided
  More Information

No publications provided

Responsible Party: Melanie B Gillingham, Assistant Professor, Oregon Health and Science University
ClinicalTrials.gov Identifier: NCT01494051     History of Changes
Other Study ID Numbers: DK71869-2
Study First Received: December 14, 2011
Last Updated: December 15, 2011
Health Authority: United States: Institutional Review Board

Keywords provided by Oregon Health and Science University:
fatty acid oxidation disorders

Additional relevant MeSH terms:
Protein Deficiency
Lipid Metabolism, Inborn Errors
Muscular Diseases
Mitochondrial Diseases
Metabolism, Inborn Errors
Deficiency Diseases
Malnutrition
Nutrition Disorders
Genetic Diseases, Inborn
Lipid Metabolism Disorders
Metabolic Diseases
Musculoskeletal Diseases
Neuromuscular Diseases
Nervous System Diseases

ClinicalTrials.gov processed this record on April 16, 2014