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Clinical Trial Details — Status: Withdrawn

Administrative data

NCT number NCT02385162
Other study ID # BGL 06-2018
Secondary ID
Status Withdrawn
Phase
First received
Last updated
Start date August 20, 2018
Est. completion date February 28, 2021

Study information

Verified date February 2023
Source CENTOGENE GmbH Rostock
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Development of a new MS-based biomarker for the early and sensitive diagnosis of Glycogen Storage Diseases from plasma. Testing for clinical robustness, specificity and long-term stability of the biomarker.


Description:

Glycogen storage diseases (GSDs) are a group of inherited genetic disorders that cause glycogen to be improperly stored in the body. People with glycogen storage diseases have a buildup of abnormal amounts or types of glycogen in their tissues. The main types of glycogen storage diseases are categorized by number and name. They include: People with GSD I may have episodes of low blood sugar (hypoglycemia), usually during periods of fasting, due to the ability to store glycogen but inability to properly release it. People with GSD I typically develop an enlarged liver (hepatomegaly) from the storage of glycogen. Elevations in liver function enzymes, blood fat and cholesterol levels, lactic acid, and uric acid also occur. Additional features of GSD I can include decreased bone density, poor growth, kidney disease, liver adenomas, and delayed puberty. Treatment primarily consists of dietary management to maintain normal blood glucose levels and prevent hypoglycemia. GSD I is further divided into subtypes. GSD Type Ia is caused by a deficiency of glucose-6-phosphatase (G6Pase) primarily in the liver, and GSD Type Ib is caused by a deficiency of glucose-6-phosphate translocase. Many of the symptoms are similar, especially early in life. However, some people with Type Ib are more prone to infections given a weaker immune system. GSD I is caused by a non-working change in either the G6PC gene or the SLC37A4 gene, causing the deficiency of the particular enzyme. GSD I follows autosomal recessive inheritance. Glycogen Storage Disease Type II [also known as Pompe disease, Acid Maltase Deficiency, Glycogenosis Type II, Acid alpha-Glucosidase Deficiency, Lysosomal alpha-Glucosidase Deficiency] Pompe disease is an inherited and often fatal disorder caused by the deficiency of acid alpha-glucosidase (GAA), an enzyme needed to breakdown glycogen (sugar that is stored for energy) in specialized structures in the body, called lysosomes. Patients with Pompe disease have little or no GAA enzyme activity and cannot breakdown glycogen. The excess glycogen accumulates and is stored in the heart, skeletal muscle and other tissues, causing the progressive symptoms of Pompe disease.Glycogen Storage Disease Type III [also known as Cori disease, Forbes disease, Debrancher enzyme deficiency, Limit Dextrinosis]


Recruitment information / eligibility

Status Withdrawn
Enrollment 0
Est. completion date February 28, 2021
Est. primary completion date February 28, 2021
Accepts healthy volunteers No
Gender All
Age group 2 Months and older
Eligibility Inclusion Criteria: - Informed consent will be obtained from the parents before any study related procedures. - Patients of both genders older than 2 month - The patient has a diagnosis of glycogen storage disease or a high-grade suspicion for glycogen storage disease High-grade suspicion present, if one or more inclusion criteria are valid: - Positive family anamnesis for glycogen storage disease - Hypoglycemia - Growth retardation: short stature, skeletal myopathy - Hepatomegaly, Splenomegaly - Myopathy with muscle weakness - cardiomyopathy Exclusion Criteria: - No Informed consent from the parents before any study related procedures - Patients of both genders younger than 2 month - No diagnosis of glycogen storage disease or no valid criteria for high-grade suspicion of glycogen storage disease

Study Design


Locations

Country Name City State
Germany Centogene AG Rostock
India Amrita Institute of Medical Sciences & Research Centre Cochin Kerala
India Navi Mumbai Institute of Research In Mental And Neurological Handicap (NIRMAN) Mumbai
Sri Lanka Lady Ridgeway Hospital for Children Colombo 8

Sponsors (1)

Lead Sponsor Collaborator
CENTOGENE GmbH Rostock

Countries where clinical trial is conducted

Germany,  India,  Sri Lanka, 

Outcome

Type Measure Description Time frame Safety issue
Primary Development of a new MS-based biomarker for the early and sensitive diagnosis of Glycogen storage disease using the technique of Mass-spectometry 7,5 ml EDTA blood, saliva tube and a dry blood spot filter card 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. 24 months
Secondary Testing for clinical robustness, specificity and long-term stability of the biomarker 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. 36 months
See also
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