A Phase II Study With Exploratory Outcomes of Fucose Supplementation in GLUT1 Deficiency Syndrome

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorOregon Health and Science University

About this trial

This is a single-center, randomized, double-blind, placebo-controlled, cross-over study to evaluate the efficacy and safety of L-fucose supplementation in subjects with GLUT1 deficiency syndrome (GLUT1DS).

Eligibility criteria

Qualifiers

Age ≥ 18 years

Confirmed diagnosis of GLUT1DS, including at least 2 out of the following 3: molecular genetic testing showing a pathogenic or likely pathogenic variant in SLC2A1; documented hypoglycorrhachia with a CSF:blood glucose ratio ≤ 0.6; clinical features consistent with GLUT1DS (epilepsy, movement disorders, ataxia, intellectual disability, dysarthria)

Presence of ataxia

Disqualifiers

Inability to swallow liquids

Change in neurological medications (either medication itself or medication dosages) in the past 90 days

Use of fucose- or mannose-containing supplements within one year of enrollment

Any degree of hepatic impairment based on the Child-Pugh classification

Trial design

Treatments tested in this trial

  • L-fucose
  • Placebo

Treatment groups

16 Participants
are divided into 2 treatment groups

Sponsors and collaborators

Oregon Health and Science University

Lead sponsor

Glut1 Deficiency Foundation

Collaborator