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Clinical Trial Summary

International, multicenter, epidemiological study to demonstrate the correlation and predictive value of lyso-Gb1 concentration with the clinical severity of naïve, initially non-ERT/SRT Gaucher disease type 1 and during the study ERT/SRT-newly started Gaucher type 1 patients and to correlate lyso-Gb1 concentration with the clinical improvement of ERT or SRT treated Gaucher type 1 and the clinical course of non-treated patients based on GD-DS3


Clinical Trial Description

Gaucher disease is an autosomal recessive inherited lysosomal storage disorder. The disease is caused by the hereditary deficiency of the glucocerebrosidase, a lysosomal enzyme that breaks down glucocerebroside into glucose and ceramide. To date a definitive diagnosis of Gaucher's disease can only be made applying biochemical testing measuring the reduced enzymatic activity of the beta-glucosidase together with genetic confirmation. Since numerous different mutations may be the cause of a particular lysosomal storage disease the sequencing of the entire beta-glucosidase gene is applied in Gaucher's disease in order to confirm the genetic diagnosis. The use of primary storage molecules as biomarker was assessed for glucosylceramide (Gb1) in plasma of Gaucher's disease patients and compared to the level of Gb1 in healthy individuals. In order to establish a sensitive and specific biomarker for GD, we compared mass spectra of the plasma of healthy controls and GD patients using HPLC and tandem mass spectrometry. Mass spectra that differed most between patients and controls were analysed in more detail. The resulting biomarker, which was patented in June 2011 (PCT/EP2012/002409), was lyso - Gb1. We identified this compound as a reliable, sensitive and specific biomarker for GD in a cohort of GD patients. Furthermore, in a pilot study we evaluated whether lyso-Gb1 is related to the specific genotypes and is reliable for long-term monitoring of the efficiency of therapy. The aim this study is therefore to investigate lyso-Gb1 as a long-term prognostic marker in naïve, non-ERT/SRT GD type 1 patients by monitoring over the course of 36 months. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02416661
Study type Observational
Source CENTOGENE GmbH Rostock
Contact
Status Completed
Phase
Start date August 27, 2018
Completion date January 15, 2021

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