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Study identifier: NCT00029965 Synced from ClinicalTrials.gov · July 29, 2026
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Natural History of Glycosphingolipid Storage Disorders and Glycoprotein Disorders

Condition: Neurological Regression · Myoclonus · Cherry Red Spot  ·  Sponsor: National Human Genome Research Institute (NHGRI)

PhaseN/A
Planned participants200
Who can joinAll sexes, 1 Day to 100 Years
Healthy volunteersNo

About this study

Study description: This is a natural history study that will evaluate any patient with enzyme or DNA confirmed GM1 or GM2 gangliosidosis, sialidosis or galactosialidosis. Patients may be evaluated every 6 months for infantile onset disease, yearly for juvenile onset and approximately every two years for adult-onset disease as long as they are clinically stable to travel. Data will be evaluated serially for each patient, and cross-sectionally for patients of similar ages and genotypes. Genotype-phenotype correlations will be made where possible although these are rare disorders and the majority of the patients are compound heterozygotes. Objectives: To study the natural history and progression of neurodegeneration in individuals with glycosphingolipid storage disorders (GSL), GM1 and GM2 gangliosidosis, and glycoprotein (GP) disorders including sialidosis and galactosialidosis using clinical evaluation of patients and patient/parent surveys. To develop sensitive tools for monitoring disease progression. To identify biological markers in blood, cerebrospinal fluid, and urine that correlate with disease severity and progression and can be used as outcome measures for future clinical trials. To further understand and characterize the mechanisms of neurodegeneration in GSL and GP storage disorders across the spectrum of disease beginning with ganglioside storage in fetal life. Endpoints: Exploring the natural history of Lysosomal Storage Diseases and Glycoprotein Disorders…

This description comes directly from the study's public registry record.

Talk to the study team

Jean M Johnston  ·  (240) 515-1448  ·  johnstonjm@mail.nih.gov

Cynthia J Tifft, M.D.  ·  (301) 451-8485  ·  cynthiat@mail.nih.gov

Always discuss trial participation with your own doctor first.

Locations (1)

National Institutes of Health Clinical CenterBethesda, Maryland, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT00029965