- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01536327
Biomarker for Metachromatic Leukodystrophy (BioMeta) Disease (BioMeta)
Biomarker for Metachromatic Leukodystrophy Disease AN INTERNATIONAL, MULTICENTER, EPIDEMIOLOGICAL PROTOCOL
Study Overview
Status
Conditions
Detailed Description
Metachromatic Leukodystrophy Disease (MLD) is one of a group of genetic disorders called the leukodystrophies. These diseases impair the growth or development of the myelin sheath, the fatty covering that acts as an insulator around nerve fibers. Myelin, which lends its colour to the white matter of the brain, is a complex substance made up of varying lipids (75%) and proteins (25%). The leukodystrophies are caused by genetic defects in myelin production or metabolization of the compounds of the myelin sheath. Each of the leukodystrophies is the result of a defect in the gene that controls one (and only one) of the enzymes responsible for creating or degrading a part of the myelin. MLD is caused by a deficiency of the enzyme arylsulfatase A. MLD is one of several lipid storage diseases, which results in the toxic build-up of fatty materials (lipids) in cells in the nervous system, liver, and kidneys. There are three forms of MLD: late infantile, juvenile, and adult. Onset of the late infantile form (the most common MLD) is typically between 12 and 20 months following birth. Affected children have difficulty walking after the first year of life. Symptoms include muscle wasting and weakness, muscle rigidity, developmental delays, progressive loss of vision leading to blindness, convulsions, impaired swallowing, paralysis, and dementia. Children may become comatose. Most children with this form of MLD die by age 5. The juvenile form of MLD (between 3-10 years of age) usually begins with impaired school performance, mental deterioration, and dementia and then develop symptoms similar to the infantile form but with slower progression. The adult form commonly begins after age 16 as a psychiatric dis-order or progressive dementia. Symptoms include impaired concentration, ataxia, seizures, dementia, and tremor. Due to consanguinity autosomalrecessive disorders such as MLD have higher prevalence in Arabian countries.
New methods, like mass-spectrometry give a good chance to characterize specific metabolic alterations in the blood (plasma) of affected patients that allow to diagnose in the future the disease earlier, with a higher sensitivity and specificity. In a pilotstudy glycosylsphingosin-sulfatid has been determined as a sensitive and specific biomarker. This is a metabolic product likely to be involved in the pathophysiology of the disease. Therefore it is the goal of the study to validate this new biochemical marker from the blood (plasma) of the affected patients helping to benefit other patients by an early diagnose and thereby with an earlier treatment. Examining blood samples will allow to determine whether measurement of the identified marker lyso-Gb1-Sulfatid is feasible in blood samples and will further promote early detection of MLD.
Though MLD is a pan-ethnic disorder, the prevalence of this autosomal-recessive disorder is elevated in countries with a higher frequency of consanguinity. Therefore, we estimate that every 400th newborn in Arabian countries may be eligible for inclusion due to high-grade suspicion of MLD, while approximately every 2000th newborn in a non-Arabian country may be eligible.
Study Type
Contacts and Locations
Study Locations
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Cairo, Egypt, 55131
- Children's Hospital, Faculty of Medicine, Ain Shams University
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Rostock, Germany, 18055
- Centogene AG
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Mumbai, India, 400705
- Navi Mumbai Institute of Research In Mental And Neurological Handicap (NIRMAN)
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Kerala
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Cochin, Kerala, India, 682041
- Amrita Institute Of Medical Sciences & Research Centre
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Colombo 8, Sri Lanka, 00800c
- Lady Ridgeway Hospital for Children
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
INCLUSION CRITERIA:
- Informed consent will be obtained from the patient or the parents before any study related procedures
- Patients from one day
- The patient has a diagnosis of Metachromatic Leukodystrophy disease or profound suspicion for Metachromatic Leukodystro-phy disease
- High-grade suspicion present, if one or more criteria are valid:
Positive family anamnesis for MLD
Neurologic symptoms of unknown origin: peripheral neuropathy, clumsiness, choreatiform movements, spastic quadriplegia, loss of ambulation, bulbar dysfunction/paresis, dysphagia, seizure disorders
Psychiatric symptoms of unknown origin: mental regression, emotional la-bility, disorganized thinking or hallucinations/delusions
Muscle symptoms of unknown origin: muscle weakness
EXCLUSION CRITERIA:
- No Informed consent from the patient or the parents before any study related procedures
- No diagnosis of MLD or no valid criteria for high-grade suspicion of MLD
Study Plan
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
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Observation
Patients with Metachromatic Leukodystrophy disease or profound suspicion for Metachromatic Leukodystrophy disease
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Development of a new MS-based biomarker for the early and sensitive diagnosis of metachromatic leukodystrophy disease from the blood
Time Frame: 24 month
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New methods, like mass-spectrometry give a good chance to characterize specific metabolic alterations in the blood of affected patients that allow diagnosing in the future the disease earlier, with a higher sensitivity and specificity.
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24 month
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Testing for clinical robustness, specificity and long-term stability of the biomarker
Time Frame: 36 months
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the goal of the study to identify and validate a new biochemical marker from the blood of the affected patients helping to benefit other patients by an early diagnose and thereby with an earlier treatment.
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36 months
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Collaborators and Investigators
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pathologic Processes
- Metabolic Diseases
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Demyelinating Diseases
- Neurologic Manifestations
- Genetic Diseases, Inborn
- Musculoskeletal Diseases
- Muscular Diseases
- Neuromuscular Diseases
- Neuromuscular Manifestations
- Metabolism, Inborn Errors
- Lysosomal Storage Diseases
- Lipid Metabolism Disorders
- Brain Diseases, Metabolic
- Brain Diseases, Metabolic, Inborn
- Sphingolipidoses
- Lysosomal Storage Diseases, Nervous System
- Lipidoses
- Lipid Metabolism, Inborn Errors
- Leukoencephalopathies
- Hereditary Central Nervous System Demyelinating Diseases
- Sulfatidosis
- Muscle Weakness
- Peripheral Nervous System Diseases
- Leukodystrophy, Metachromatic
Other Study ID Numbers
- BMLD 06-2018
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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