RecruitingNot Applicable

Brain Metabolism Observed at 7 Tesla

United States20 participantsStarted 2022-05-03

Plain-language summary

The goal is to develop methodology to monitor flux in the citric acid cycle in brain via 13C nuclear magnetic resonance (NMR) spectroscopy at 7 Tesla.

Who can participate

Age range16 Years – 65 Years

SexALL

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Inclusion criteria

✓. Adolescents and adults with previously documented diagnosis of Glut1 Deficiency with diagnosis genetically confirmed or confirmed by PET scan of the brain.
✓. Ages 16 to 65
✓. Persons with dental fillings, dental crowns, and short (max.4 cm) dental retainer wires can be included.

Exclusion criteria

✕. People or patients with uncontrolled seizure disorder, defined as grand mal (not absence) seizure in the preceding 3 months.
✕. Pregnant females will be excluded. A serum or urine pregnancy test will be administered to all females of child bearing potential within 24 hours of administration of the tracer and MRI scan. The pregnancy test will be communicated in person by the study PI. Positive results in subjects 17 years old or younger will be disclosed to parent/guardian only.
✕. Subjects with typical implanted orthopedic metal in bone may be considered for inclusion in a 7T scan providing the implant is not within the volume of the radio frequency coil. The PI and the AIRC Medical Director will discuss each case and determine eligibility.
✕. Persons with ICD, pacemakers, neurostimulators and other such devices will be excluded.
✕. Persons with claustrophobia are excluded.
✕. Persons with questionable ferrous implants, bullets, BB's, and shrapnel will be excluded.
✕. Subjects who are not fluent in English will be excluded because immediate cooperation and the ability to respond to instructions from the investigators are necessary.

What they're measuring

Select metabolite abundance measured at 7Tfield strength

Timeframe: Day 1, immediately after 13 C labeled isotope infusion

Select metabolite abundance measured at 3T field strength

Timeframe: Day 1, immediately after 13 C labeled isotope infusion

Trial details

NCT IDNCT05085704

SponsorUniversity of Texas Southwestern Medical Center

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2026-09-20

Contact for this trial

Juan M Pascual, M.D.

214-648-4591 rare.diseases@utsouthwestern.edu

View on ClinicalTrials.gov More Glut1 Deficiency Syndrome 1 trials