Study of Triheptanoin for Treatment of Long-Chain Fatty Acid Oxidation Disorder

This study is currently recruiting participants.

Verified February 2013 by Oregon Health and Science University

Sponsor:

Collaborator:

University of Pittsburgh

Information provided by (Responsible Party):

Melanie B Gillingham, Oregon Health and Science University

ClinicalTrials.gov Identifier:

NCT01379625

First received: June 21, 2011

Last updated: February 1, 2013

Last verified: February 2013

History of Changes

Tracking Information

First Received Date ^ICMJE

June 21, 2011

Last Updated Date

February 1, 2013

Start Date ^ICMJE

September 2011

Estimated Primary Completion Date

May 2014 (final data collection date for primary outcome measure)

Current Primary Outcome Measures ^ICMJE

Energy Expenditure [ Time Frame: change from baseline after 4 months of treatment ] [ Designated as safety issue: No ]

Total energy expenditure will be measured by doubly labeled water and resting energy expenditure will be measured by indirect calorimetry at baseline and again after 4 months of either MCT or trihpetanoin treatment.

Original Primary Outcome Measures ^ICMJE

Energy Expenditure [ Time Frame: change from baseline after 4 months of treatment ] [ Designated as safety issue: No ]

Total energy expenditure will be measured by doubly labled water and resting energy expenditure will be measured by indirect calorimetry at baseline and again after 4 months of either MCT or trihpetanoin treatment.

Change History

Complete list of historical versions of study NCT01379625 on ClinicalTrials.gov Archive Site

Current Secondary Outcome Measures ^ICMJE

Exercise heart rate [ Time Frame: change from baseline to 4 months of treatment ] [ Designated as safety issue: No ]

Subjects will complete a submaximal treadmill exercise study at baseline. Exercise heart heart, ventilation and perceived exertion will be measured. Subjects will be randomized to MCT or triheptanoin supplementation for 4 months. At the end of treatment, the exercise test will be repeated keeping work performed constant. Change in exercise heart rate, ventilation and exertion will be compared between groups.

Original Secondary Outcome Measures ^ICMJE

Exercise heart rate [ Time Frame: change from baseline to 4 months of treatment ] [ Designated as safety issue: No ]

Subjects will complete a submaximal treadmill exercise study at baseline. Exercise heart heart, ventilation and percieved exertion will be measured. Subjects will be randomized to MCT or triheptanoin supplementation for 4 months. At the end of treatment, the exercise test will be repeated keeping work performed constant. Change in exercise heart rate, ventilation and exercition will be compared between groups.

Current Other Outcome Measures ^ICMJE

Not Provided

Original Other Outcome Measures ^ICMJE

Not Provided

Descriptive Information

Brief Title ^ICMJE

Study of Triheptanoin for Treatment of Long-Chain Fatty Acid Oxidation Disorder

Official Title ^ICMJE

Phase 2 Study of Triheptanoin for Treatment of Long-Chain Fatty Acid Oxidation Disorders

Brief Summary

Humans eat long-chain fat in their diet and use it for energy during exercise and during periods of fasting. Patients with long-chain fatty acid oxidation disorders cannot use dietary fat for energy. They sometimes develop muscle breakdown, and severe pain with exercise or illness. They can also develop a heart that does not function properly. These patients are tired and expend less energy than people who do not have a long-chain fatty acid oxidation disorder. However, they can use a supplement oil called medium chain triglyceride or MCT. This study will determine if a new experimental oil called Triheptanoin can decrease the muscle pain and increase the heart function and the amount of energy in patients with long-chain fatty acid oxidation disorders. Funding source - FDA's OOPD

Detailed Description

Recruitment: Patients with a long-chain fatty acid oxidation disorder will be recruited through our clinic, past research participants, a patient support website, and recruitment letters mailed to physicians around the US. We will enroll 16 subjects at OHSU and 16 subjects at the University of Pittsburgh, age 7 to 40, with a disorder in fatty acid oxidation.

Procedures: Subjects will be admitted to the clinical research center for 4 days. They will collect all their urine for 24 hours. Heart function will be measured using ultrasound an electrocardiogram (ECG). The motion of the heart will be measured by magnetic resonance imaging (MRI). For this test, the patient lies in the magnetic field of the MRI machine in the Advanced Imaging Resource Center (AIRC) for about 45 minutes. The amount of muscle and fat in the whole body and inside the liver and muscle will be measured by MRS and by dual X-ray absorptiometry (DEXA). Subjects will walk on a treadmill for about 45 minutes. The amount of Calories they use, their heart rate, and if they burn fat or carbohydrates will be measured. Blood samples will be collected before and after exercise. A meal test will be used to determine how much fat they burn. The subjects will drink a liquid breakfast with a stable isotope labeled fat in the breakfast. Breath and blood samples will be collected before and after the meal. The amount Calories burned by each subject will be measured when they are at rest on a bed by indirect calorimetry. The amount of Calories burned by subjects when they are doing their routine daily activities will be measured at home by doubly labeled water. All of these tests will be done at baseline. Then, subjects will be randomly assigned to consume MCT (current standard of care) or triheptanoin at 20% of their estimated Calorie needs for 4 months. The subject and/or the parent will be taught how to use the supplement oil in their diet for cooking and baking. The subject will be sent home and the oil will be shipped to their home. The study coordinator will call the subject or subject's guardian each week to monitor the subject's diet, potential side effects and assist with diet planning. At the end of 4 months, all of the baseline tests will be repeated.

Triheptanoin is experimental oil. It is a clear, odorless oil that can be mixed with foods and used in cooking. Almost all oils are made from even chains of carbon molecules. Triheptanoin is different because the carbon chains are odd in number. The co-investigator of this study at the University of Pittsburgh, Dr. Jerry Vockely, holds an IND for the prescription, and use of triheptanoin in humans (IND 106011).

Data Analysis: The change in exercise ability, heart function, Calories used and body fat after 4 months will be compared between subjects randomized to MCT versus triheptanoin.

Study Type ^ICMJE

Interventional

Study Phase

Phase 2

Study Design ^ICMJE

Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Single Blind (Subject)
Primary Purpose: Treatment

Condition ^ICMJE

Very Long-chain acylCoA Dehydrogenase (VLCAD) Deficiency
Carnitine Palmitoyltransferase 2 (CPT2) Deficiency
Mitochondrial Trifunctional Protein (TFP) Deficiency
Long-chain 3 hydroxyacylCoA Dehydrogenase (LCHAD) Deficiency

Intervention ^ICMJE

Drug: Triheptanoin

Triglyceride with three heptanoin or 7 carbon fatty acids esterified to a glycerol backbone

Other Names:

IND 113386
C7

Study Arm (s)

Active Comparator: Medium Chain Triglyceride (MCT)
Subjects randomized to consume 20% of energy from MCT

Intervention: Drug: Triheptanoin
Experimental: Triheptanoin
Subject randomized to consume 20% of energy from triheptanoin.

Intervention: Drug: Triheptanoin

Publications *

Not Provided

* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.

Recruitment Information

Recruitment Status ^ICMJE

Recruiting

Estimated Enrollment ^ICMJE

Estimated Completion Date

August 2014

Estimated Primary Completion Date

May 2014 (final data collection date for primary outcome measure)

Eligibility Criteria ^ICMJE

Inclusion Criteria:

Confirmed diagnosis of Very long-chain acylCoA dehydrogenase (VLCAD) Deficiency, Carnitine Palmitoyltransferase 2 (CPT2) Deficiency, Mitochondrial Trifunctional Protein (TFP) Deficiency, or Long-chain 3 hydroxyacylCoA dehydrogenase (LCHAD) deficiency
> 7 years
Ability to travel to CRC to participate
Ability to follow protocol

Exclusion Criteria:

Hgb < 10 g/dl
Peripheral neuropathy that limits ability to complete treadmill studies
Inclusion in another research study that alters macronutrient intake
Pregnant females

Gender

Both

Ages

7 Years to 45 Years

Accepts Healthy Volunteers

Contacts ^ICMJE

Contact: Julie Martin, MS, RD

503-494-5313

martijul@ohsu.edu

Location Countries ^ICMJE

United States

Administrative Information

NCT Number ^ICMJE

NCT01379625

Other Study ID Numbers ^ICMJE

FD003895

Has Data Monitoring Committee

Yes

Responsible Party

Melanie B Gillingham, Oregon Health and Science University

Study Sponsor ^ICMJE

Oregon Health and Science University

Collaborators ^ICMJE

University of Pittsburgh

Investigators ^ICMJE

Principal Investigator:

Melanie B Gillingham, PhD

Oregon Health and Science University

Information Provided By

Oregon Health and Science University

Verification Date

February 2013

^ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP

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