NCT02036853

An Open-Label Trial of Triheptanoin in Patients With Glucose Transporter Type-1 Deficiency Syndrome

An Open-Label Trial of Triheptanoin in Patients With Glucose Transporter Type-1 Deficiency Syndrome (GLUT1 DS)

• Status: Completed
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 20 (actual)
• Sponsor: Adrian Lacy · Academic / Other
• Sex: All
• Age: 1 Year – 50 Years
• Healthy volunteers: Not accepted

Summary

This study is being done to assess the safety and long-term efficacy of triheptanoin in pediatric patients with Glut1 DS over a 5-year treatment period. Glut 1 is a protein that helps transport glucose to the brain. Glucose is the brain's primary source of energy. Glut 1 DS prevents this protein from being effectively produced, causing deprivation of energy to the neurons of the of the brain. Glut1 DS is a severely debilitating disease characterized by seizures, developmental delay and movement disorder. There are currently no approved treatments specific to Glut1 DS. Treatment generally includes medications for control of seizures. The use of a ketogenic diet can be effective in controlling seizures when medications are ineffective or provide insufficient control. However, the ketogenic diet may be very difficult for patients to maintain for long periods of time, and there may be negative secondary long-term effects of ketogenic diet.. Triheptanoin is metabolized to molecules that can provide an alternative energy source to the brain, and appears to help in controlling seizures without many of the difficulties of the ketogenic diet. Eligible patients may be those who have been diagnosed with GLUT1 DS, and have discontinued or are not currently on ketogenic diet, or are able to tolerate triheptanoin if they have been treated or are currently being treated with triheptanoin and do not qualify for any other clinical trial.

Detailed description

Triheptanoin is proposed for the treatment of seizures in glucose transporter type-1 deficiency syndrome (Glut1 DS). Glut1 DS is a rare disease with an estimated US prevalence of \~3,300. The proposed study is an open-label study to assess the safety and long-term efficacy of triheptanoin in patients with Glut1 DS over a 5-year treatment period. Eligible patients may be those who are able to tolerate triheptanoin if they have been treated or are currently being treated with triheptanoin and do not qualify for any other clinical trial. Subjects previously treated with triheptanoin will continue to dose at approximately 35% of total daily calories (\~1-4g/kg/day, depending on age). Subjects who are naïve to triheptanoin will begin a 2-week fixed titration schedule up until they have reached 35% of total daily calories. The primary objective of the study is to evaluate the safety of triheptanoin via adverse event rates and laboratory values. The secondary objective is to evaluate the long-term efficacy of triheptanoin as measured by the change in seizure frequency from historical baseline.

Conditions

• Glucose Transporter Type-1 Deficiency Syndrome (Glut1 DS)

Interventions

Type	Name	Description
DRUG	Triheptanoin	Schedule A: Subjects previously treated with triheptanoin will continue to dose at approximately 35% of total daily calories (\~1-4g/kg/day, depending on age). Schedule B: Subjects who are naïve to triheptanoin will begin a 2-week fixed titration schedule up until they have reached 35% of total daily calories (\~1-4 g/kg/day depending on age). If a subject has not reached the target of 35% of total daily calories, by the end of the 2-week fixed titration period, dose titration should continue until achieved or until the maximally tolerated dose has been established.

Timeline

• Start date: 2014-02-20
• Primary completion: 2019-06-30
• Completion: 2019-06-30
• First posted: 2014-01-15
• Last updated: 2021-01-28
• Results posted: 2021-01-28

Locations

1 site across 1 country: United States