Active clinical trials for "Fabry Disease"

The purpose of this study is to compile a registry of patients with Fabry disease, an inherited metabolic disorder. In this disease, an enzyme called a-galactosidase A, which normally breaks down a lipid (fatty substance) called globotriaosylceramide (Gb3), is missing or does not function properly. As a result, Gb3 accumulates, causing problems with the kidneys, heart, nerves, and blood vessels. It is not known exactly how lipid accumulation causes these problems, but in another lipid storage disease called Gaucher disease the illness can be reversed if the accumulated lipid is removed by repeated intravenous (into a vein) infusions of the deficient enzyme. The Fabry disease registry is a voluntary and anonymous list of patients that includes information about their health and allows doctors to follow changes in their symptoms and test results over time. It also allows doctors to compare symptoms between patients who are receiving certain therapies with those who are not receiving therapy. The goals of the registry are to: Better understand the natural history of Fabry disease, including disease variations within and between affected families; Provide a basis for developing guidelines for disease management; Evaluate how treatment affects the course of disease; Provide high-quality data and analyses that will help to continuously develop better treatments. Patients of all ages with biochemical or genetic evidence of Fabry disease (i.e., individuals who have a deficiency of the enzyme a-galactosidase A or a mutation in the gene that encodes this enzyme, or both) are eligible for this study. This worldwide study will include 100 patients participating in Fabry disease studies at the NIH. These patients will come to the NIH Clinical Center only as required for participation their Fabry disease study. No additional procedures will be required for the current registry study. NIH patients will take part in the registry study for their lifetime, or as long as they are being followed at the NIH for their Fabry disease. At their regularly scheduled NIH clinic visits, participants will have routine medical procedures and examinations deemed necessary by the doctor. The results of blood and urine tests taken at these visits will be entered into the registry database. Blood tests will include information on genotype (determination of which gene mutation is responsible for the disease), a-galactosidase A levels, Gb3 levels, and creatinine. Urine tests results will include creatinine clearance (a measure of kidney function) and protein evaluation.

The purpose of this research project is: to use an advanced quantitative MRI technique (FBFI) to detect and quantify brain lesion in patients with FD to use fMRI to identify altered brain function to use FBFI and fMRI together to map altered connectivity in response to brain lesions

New studies indicate that in about 1 - 2 percent of the younger stroke patients the cause could have been an undiagnosed genetic disease, the so called Fabry disease. In this case certain fat molecules are not digested and broken down by the body - but remain in the cells. These fat molecules build up to dangerous levels, which start to damage the body, because they accumulate e.g. in the walls of the blood vessels. This accumulation in the blood vessels of the whole body may cause life-threatening malfunctions in the brain, inducing a stroke. The purpose of this study is to investigate the stroke rehabilitation of Fabry patients during different therapeutic standard approaches for stroke and for Fabry disease (if any). During this study, stroke patients with Fabry disease will be monitored in greater detail to determine whether the differences in treatment are significant for patient recovery and on what they depend.

Fabry disease is a rare X-linked lysosomal storage disorder. The mutations result in a deficiency of the lysosomal enzyme α-galactosidase causing accumulation of glycosphingolipids in the vascular endothelial cells and many other tissues. An early sign of the disease is painful small fibre neuropathy presenting in two forms: 1. a constant burning sensation in the hand and feet and 2. Fabry crises consisting of attacks of excruciating pain. Given the X-linked inheritance, male patients are severely affected. Recently attention has been drawn to female patients whether they also show signs of nerve involvement. The purpose of this study is to evaluate the small fibre neuropathy in female Fabry patients. Correlation with X-chromosome inactivation will be attempted. Recombinant human α-galactosidase A is now available for patients. A part of this study is evaluation the long term efficacy of enzyme replacement therapy in female patients with Fabry disease and neuropathy. Male family members with Fabry disease will be examined.

This is an international, non-interventional research study of adult patients with Fabry Disease and their caregivers. The study will comprise a prospective time and motion evaluation and a cross-sectional evaluation of patient and caregiver-reported outcomes. The study will evaluate the time associated with the preparation and administration of a single dose of ERT in patients by health care providers as well as the impact on Fabry patients and caregivers time and costs associated with an ERT treatment. The study will also evaluate the patients' quality of life wellbeing, fatigue and work productivity.

The association of Multiple Sclerosis (MS) and Fabry disease is known from own clinical experiences as well as from case reports in the literature, where symptoms and suspicious results in the brain MRI led to the misdiagnosis of Fabry patients as MS. Remarkably, those patients almost never showed oligoclonal bands or an intrathecally derived IgG-production was wrongly assumed due to misinterpretation of CSF results. Where oligoclonal bands were present, concomitant diagnoses had to be discussed. Furthermore, those patients showed no involvement of the spinal cord, as evidenced by MRI. Beside the possible complications of a not-effective and not-necessary MS therapy, those patients are at risk of irreparable organ damage due to the delayed implementation of enzyme replacement therapy for Fabry disease.

This study aims to evaluate blood oxygenation at the optic nerve head in relation with visual field losses observed in many Fabry patients. Data collected will allow to evaluate if there is a link between these two entities. Study will last up to 2 years during which a limited number of Fabry patients will be compared to a control group to confirm any relationship between blood flow and field losses, and to see if these results vary over time. HYPOTHESIS 1. Fabry patients will present significant differences in visual fields compared to control 2 There will be variability of the visual field defects on the long term but not on the short term 3 Blood oxygenation will be higher for Fabry patients 4 Blood volume at the optic nerve head will be the same for both groups.

Anderson Fabry disease (AFD) is an X-linked lysosomal storage disorder caused by a deficiency of the enzyme alpha-galactosidase. AFD can involve various organs and lead to a series of clinical abnormalities. Left ventricular hypertrophy in middle-aged men is one of its life threatening complications. It was shown that pending the absence of myocardial replacement fibrosis, substitution therapy could improve myocardial morphology and function as well as exercise capacity. Today, there is no available marker of the efficacy of the treatment on the heart morphology and function. The T1 time (or longitudinal relaxation time) is one of the major components of the image formation in Magnetic Resonance Imaging (along with T2 time and proton density). Several techniques have been described to assess the myocardial T1-time. One of them called MOLLI (Modified Look Locker Inversion Recovery), was made available in research centres by the Siemens company. In a study published in 2013, Sado et al. showed in a series of various conditions (hypertension, AFD, hypertrophic cardiomyopathy, AL amyloidosis, aortic stenosis and healthy volunteers) that a septal T1 below a threshold of 940ms could discriminate AFD patients. No overlap was shown with other conditions in this study. Our experience with T1 mapping supports that finding (even though our threshold could be slightly different), and we could recently detect by MRI a number of AFD patients, some of them with hypertrophy, some others without hypertrophy. The effect of Replagal® on the T1 relaxation time remains unknown. The purpose of that study was to follow-up the heart morphology, function and myocardial T1 relaxation time in a population of treated/untreated patients.

The purpose of this study is to collect data that will increase understanding of Fabry disease history and progression, in treated and untreated patients with Fabry disease. The data from FOS may provide guidance to healthcare professionals about disease treatment options.

Fabry's disease a genetic disorder (X-linked recessive) due to the absence of the enzyme ceramidetrihexosidase. The disease is characterized by abnormal collections of glycolipids in cells (histiocytes) within blood vessel walls, tumors on the thighs, buttocks, and genitalia, decreased sweating, tingling sensations in the extremities, and cataracts. Patients with Fabry 's disease die from complications of the kidney, heart, or brain. The purpose of this study is to measure levels of a protein marker (PGP 9.5) in the skin, blood, and fluid surrounding the brain and spinal cord (CSF) in patients with Fabry's disease. In addition the study will attempt to determine if levels of the protein are directly related to the severity of disease in the nervous system. PGP 9.5 protein levels will be measured in normal volunteers and patients with other diseases of the nervous system then compared to the levels recorded in patients with Fabry's disease. This research study is designed to improve the understanding of Fabry's disease. Patients participating in it will not directly benefit from it. However, knowledge gained as a result of this study may contribute to the development of effective therapies for Fabry's disease.