Pharmacokinetics, Safety and Tolerability of Zavesca (Miglustat) in Patients With Infantile Onset Gangliosidosis: Single and Steady State Oral Doses

• ClinicalTrials.gov Identifier: NCT00672022
• Recruitment Status: Completed
• First Posted: May 6, 2008
• Last Update Posted: May 6, 2008
• Sponsor: Children's National Research Institute
• Collaborator: Actelion
• Information provided by: Children's National Research Institute

Study Description

Brief Summary:

We want to see if Zavesca (or miglustat) is safe and can be tolerated by patients with acute infantile onset GM2 gangliosidosis - classical Tay-Sachs and infantile onset Sandhoff disease. We know that miglustat inhibits the formation of GM2 ganglioside, the compound that is stored in the brains of children with Tay-Sachs and Sandhoff disease. Since it inhibits the synthesis of ganglioside, miglustat may be able to reduce or delay the onset of clinical symptoms.

Condition or disease	Intervention/treatment	Phase
GM2 Gangliosidoses; Tay-Sachs; Sandhoff Disease	Drug: Zavesca (Miglustat)	Phase 3

Detailed Description:

Specific Aims

The primary objective of the study is to investigate the pharmacokinetics of ZAVESCA® (miglustat, OGT918), when given as a single dose and at steady state, in infantile patients with GM2 gangliosidosis. The secondary objectives are to evaluate the tolerability and safety of single and multiple doses of miglustat and to monitor disease progression using physical and developmental assessments and disease-specific biomarkers.

Study Design

• Study Type: Interventional (Clinical Trial)
• Estimated Enrollment: 10 participants
• Allocation: Non-Randomized
• Intervention Model: Single Group Assignment
• Masking: None (Open Label)
• Primary Purpose: Treatment
• Official Title: Pharmacokinetics, Safety and Tolerability of Zavesca (Miglustat) in Patients With Infantile Onset GM2 Gangliosidosis: Single and Steady State Oral Doses
• Study Start Date: July 2004
• Actual Primary Completion Date: August 2007
• Actual Study Completion Date: August 2007

Arms and Interventions

Outcome Measures

Primary Outcome Measures :

1. Biomarkers (level of GM2 ganglioside, chitotriosidase activity, anti-GM2 antibodies) in plasma, serum and CSF will be measured at initial visit (run-in period), Week 13, and Week 25.

Secondary Outcome Measures :

1. Neurophysiologic Assessment - EEG and BEAR tests will be done at initial visit (run-in period), Week 13, and Week 25.
2. Ophthalmology Assessment - comparision of the "cherry-red" macula changes will be made at initial visit (run-in period) and Week 25.

Eligibility Criteria

• Ages Eligible for Study: 6 Months to 5 Years (Child)
• Sexes Eligible for Study: All
• Accepts Healthy Volunteers: No

Criteria

Inclusion criteria

1. Diagnosis of GM2 gangliosidosis, confirmed by demonstration of profound deficiency of -hexosaminidase A or A & B in peripheral blood leukocytes or in cultured skin fibroblasts, within the previous 1 year in non-bone marrow transplant recipients who are < 2 years of age, or prior to stem cell transplant in stably engrafted transplant patients who are < 5 years of age.
2. Onset of characteristic clinical symptoms of the disease before the age of 9 months.
3. Normal renal and hepatic function.
4. Written informed consent from parent or legal guardian.

Exclusion criteria

1. Patients who are unable to comply with the study procedures of this protocol, including the refusal to swallow the food used to mask the taste of the study drug and whose parents are unwilling to administer the drug through a nasogastric or gastrostomy tube.
2. Patients receiving other investigational agents within 3 months of study initiation.
3. Patients who are anemic (hemoglobin < 11 g/dl, and/or hematocrit < 34%)
4. Patients who have a history of significant gastrointestinal disorders, including clinically significant diarrhea (>3 liquid stools per day for > 7 days), without definable cause within 3 months of baseline visit.
5. Patients with a high probability of dying during the 6-month assessment period of the study.
6. Patients who in the opinion of the investigator (for whatever reason) are thought to be unsuitable for the study.

Contacts and Locations

Locations

United States, District of Columbia

Children's National Medical Center

Washington, District of Columbia, United States, 20010

Sponsors and Collaborators

Children's National Research Institute

Actelion

Investigators

• Principal Investigator: Cynthia J TIfft, MD, PhD; Children's National Research Institute

More Information

• ClinicalTrials.gov Identifier: NCT00672022
• Other Study ID Numbers: 3445
• First Posted: May 6, 2008
• Last Update Posted: May 6, 2008
• Last Verified: July 2005

Additional relevant MeSH terms:

Tay-Sachs Disease; Gangliosidoses; Gangliosidoses, GM2; Sandhoff Disease; Sphingolipidoses; Lysosomal Storage Diseases, Nervous System; Brain Diseases, Metabolic, Inborn; Brain Diseases, Metabolic; Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Metabolism, Inborn Errors; Genetic Diseases, Inborn; Lipidoses; Lipid Metabolism, Inborn Errors; Lysosomal Storage Diseases; Metabolic Diseases; Lipid Metabolism Disorders; Miglustat; Enzyme Inhibitors; Molecular Mechanisms of Pharmacological Action; Anti-HIV Agents; Anti-Retroviral Agents; Antiviral Agents; Anti-Infective Agents; Glycoside Hydrolase Inhibitors; Hypoglycemic Agents; Physiological Effects of Drugs