Clinical trialNCT03181399CompletedPhase 2Interventional

Diet Treatment Glucose Transporter Type 1 Deficiency (G1D)

SponsorUniversity of Texas Southwestern Medical CenterEnrollment45EpilepsyGLUT1DS1Glucose Metabolism DisordersGlucose Transport DefectGlucose Transporter Protein Type 1 Deficiency SyndromeGlucose Transporter Type 1 Deficiency Syndrome+1 more conditions

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

Forty-five subjects receiving no dietary therapy with a proven G1D diagnosis will be enrolled. To evaluate the effect of C7 supplementation of a regular diet on a EEG activity in addition to IQ, language, working memory, processing speed, emotional and behavioral functioning, ataxia, and other neuropsychological and neurological performance indices in children and adults genetically diagnosed with G1D receiving a regular diet at enrollment.

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Investigators

The overall officials registered on this study. Names that resolve to a FindMyKOL profile link to it; the rest are shown as registered.

Juan Pascual, MD
Study Principal Investigator
Principal InvestigatorKOL profile →
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A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

University of Texas Southwestern Medical Center
Dallas, Texas, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

Triheptanoin →

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 18 Apr 2018
Primary completion: 10 Sept 2023
Completion: 10 Sept 2023
Last update posted: 7 Aug 2025
Registered enrollment: 45
Registry id: NCT03181399

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.