Home Therapy With Replagal in Fabry Disease
Fabry DiseaseThe purpose of this study is to proof increasing patient satisfaction and preservation of quality of life in patients with Morbus Fabry disease receiving their Enzyme Replacement Therapy with Replagal (Agalsidase alfa) at home compared to receiving the infusions at the clinic or at doctor's practice.
The Fabrazyme® and Arbs and ACE Inhibitor Treatment (FAACET) Study
Fabry DiseaseProteinuriaThe primary hypothesis is that titration of ACE inhibitor and Angiotensin Receptor Blockers (ARBs)to reduce urine protein excretion to < 500 mg per day in Fabry Patients receiving agalsidase beta therapy at 1 mg/kg every two weeks will slow the progression rate of decline of glomerular filtration rate (GFR) compared to case controls drawn from the Genzyme-sponsored Phase III extension study (GFR 60 to 125 ml/min/1.73 m², urine protein > 1 gram/day) or the Phase IV study (GFR 20 to 60 ml/min/1.73 m², urine protein > 0.5 gram/day). After a 3 month initial Evaluation Phase, the patients will be followed during a 24 month Observation Phase. FAACET is an open label, prospective observational study. The primary objective is reduction of first morning urine protein/creatinine ratio to < 0.5 gram/gram. The primary outcome measure is the regression slope of MDRD GFR with time in years
PET Scans in Normal Volunteers and Patients With Fabry Disease
Fabry DiseaseHealthyThis study will determine the rate of sugar metabolism in the brain of patients with Fabry disease, a genetic disease of abnormal lipid metabolism. Compared with healthy people, patients with Fabry disease have increased blood flow to the brain, which may result from abnormal brain metabolic activity. This study will use positron emission tomography (PET) and magnetic resonance imaging (MRI) to compare brain sugar metabolism in eight untreated patients, eight patients who are receiving enzyme replacement therapy, and eight healthy volunteers. Patients with treated and untreated Fabry disease and normal volunteers may be eligible for this study. Participants will undergo the following two procedures: PET scan < The patient lies in the PET scanning machine. First, the chest is scanned for a few minutes to determine how much radiation the tissues of the chest absorb. A radioactive sugar called fluorodeoxyglucose (FDG) is then injected through a catheter (thin plastic tube placed in a vein) and the heart is scanned for about 45 minutes to measure the amount of FDG in the blood inside the heart. The head is then scanned for about 20 minutes to measure FDG in the brain. This measurement tells how much sugar the brain uses for energy. The procedure requires insertion of two or three catheters. A special facemask may be molded to the patient's head to help hold the head still during the scanning. MRI scan < The patient lies on a table surrounded by the scanner (a metal cylinder) for about 60 minutes. A strong magnetic field and radio waves are used to show images of structural and chemical changes in tissues. This study may provide information that will help explain abnormalities in Fabry disease and the effect of treatment on the brain.
Study to Collect Data on Fabry Disease Patients With Enhanceable Alpha-Galactosidase A Activity...
Fabry DiseaseThis study will collect data needed to design a treatment trial for patients with Fabry disease using the experimental drug AT-1001. Fabry disease is an inherited metabolic disorder in which an enzyme called alpha-galactosidase A, which normally breaks down fatty substances called glycolipids, is missing or does not function properly. As a result, glycolipids accumulate in various tissues, causing liver, kidney, nerves, skin, muscle and blood vessel problems. No treatment is given in this survey study. Males 18 years of age and older with Fabry disease who have certain genetic mutations associated with enhancement of alpha-galactosidase A activity may be eligible for this study. Participants undergo the following tests and procedures over 5 days: Day 1 Medical history and physical examination, blood tests, electrocardiogram (EKG), routine urinalysis, measurements of height, weight, and vital signs (blood pressure, heart rate, breathing rate, and temperature). Day 2 Blood tests, 24-hour urine collection, vital signs and sweat test. The sweat test (also called QSART, or quantitative sudomotor axon reflex test) measures the amount of sweat in a particular area of skin. A small amount of medication called acetylcholine is put on an area of the skin and a small electric current is applied to stimulate the sweat glands. Day 3 Blood tests, 24-hour urine collection, vital signs, and skin biopsy. For the skin biopsy, a small area of skin is numbed and a punch device is used to remove a 3-mm (1/8-inch) layer of skin for microscopic examination. Day 4 Blood tests, 24-hour urine collection, vital signs, and QSART. Day 5 Blood tests and vital signs. In addition to the above, patients are scheduled at some point in the 5-day study for an eye examination, brain magnetic resonance angiogram (MRA), and a heart examination and echocardiogram. MRA uses a strong magnetic field and radio waves to provide images of the blood vessels in the head and neck. It can detect abnormalities such as aneurysms, vessel malformations, and thickening of the vessel walls. An echocardiogram is an ultrasound test that shows how well the heart pumps blood and if there is thickening of the heart muscle. Patients who are taking enzyme replacement therapy discontinue treatment for up to 6 weeks (no more than two missed infusions) to allow accurate measurement of the amount of alpha-galactosidase A the patient's body produces by itself. They provide weekly blood samples between the time they stop treatment and enter the study. The samples are used to monitor the removal of the enzyme from the body and the possible buildup of Gb(3) in the blood.
Vasodilation in Patients With Fabry's Disease
Cerebrovascular AccidentFabry Disease1 moreFabry's disease a genetic disorder (X-linked recessive) due to the absence of the enzyme alpha-galactosidase A. 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 objective of this study is to test the belief that patients with Fabry's disease have a problem with blood vessels becoming larger. The walls of blood vessels contain muscles that when they relax the vessel becomes larger. This process is referred to as vasodilation. It is controlled by a substance released by cells in blood vessels called EDRF (endothelium-derived relaxing factor). Several drugs can affect vasodilation. Researchers believe some drugs may work by blocking the affect of EDRF. Researchers would like to test the effects of these drugs on the blood vessels of normal volunteers and patients with Fabry's disease.
Global Burden and Treatment Trajectiories in Italian Patients With Fabry Disease
Fabry DiseaseGROUND study is an Italian, multicenter retrospective longitudinal cohort study with a cross-sectional phase with the aim to quantify the severe clinical burden in terms of severe and fatal outcomes and extension of clinical impairment in the Italian Fabry Disease patients' population
Characterisation of Heart Involvement in Fabry Disease With T1 Mapping
Fabry DiseaseFabry disease is a rare lysosomal storage disorder characterised by a genetic deficiency in the α-galactosidase enzyme. This deficiency leads to a progressive accumulation of a fatty substance, called glycosphingolipids within a specific part of our cells called the lysosome. This lysosomal accumulation can have devastating effects on patients with Fabry disease, affecting multiple organs. Heart involvement is particularly feared because it is the leading cause of death in Fabry disease. Cardiovascular magnetic resonance imaging (cardiac MRI) is a relatively new heart imaging technique. A cardiac MRI technique called T1 mapping can measure the magnetic relaxation properties of heart tissue. T1 mapping is important in Fabry disease because glycosphingolipids have distinct magnetic relaxation properties. The abnormal build up of glycosphingolipid within the heart may be detectable using T1 mapping. This accumulation of glycosphingolipid could identify an earlier form of Fabry disease. Moreover, it is postulated that T1 mapping may inform prognosis and response to therapy. Whilst promising, further investigation and development of this innovative technique in Fabry disease is required. This study aims to find out more about T1 mapping in Fabry disease. Patients referred for clinical cardiac MRI scanning will also undergo T1 mapping. T1 mapping results will be correlated with other markers of disease severity. This will allow heart muscle T1 to be determined in a larger population of Fabry patients than currently exists in the literature and T1 to be characterised across a wider range of Fabry disease severity than currently exists in the literature.
German Observational Multicenter Study of Patients With Fabry Disease Under Chaperone Therapy With...
Fabry DiseaseThe objective of the study is to document long term data on treatment with Migalastat under "real world" conditions. The selection of patients is based on the SmPC/Fachinformation. The study duration/patient will be 2 years.
The Efficacy and Safety of Switch Between Agalsidase Beta to Agalsidase Alfa for Enzyme Replacement...
Fabry DiseaseFabry´s Disease1 moreThe current approved treatment for Fabry disease is enzyme replacement therapy (ERT). There are actually 2 products in this therapeutic class available: Replagal® (agalsidase alfa) and Fabrazyme® (agalsidase beta). Both are indicated for long-term treatment in patients with a confirmed diagnosis of Fabry disease (alfa-galactosidase A deficiency). Both have been commercially available in Europe for almost 10 years, yet little information is available about the clinical and safety profile of patients who switch from one therapy to the other. An extended shortage of Fabrazyme® that began in June 2009 has necessitated that a large number of patients switch from Fabrazyme® to Replagal®. This offers the possibility to study the clinical status and adverse events in patients who switch from Fabrazyme® to Replagal® on a large-scale basis. In addition, as a result of the increasing Fabrazyme® shortage, many of these patients received a reduced dosage of Fabrazyme® for an extended period before transitioning to treatment with Replagal®.
A Long Term Safety and Efficacy Study of Fabrazyme Replacement Therapy in Japanese Patients With...
Fabry DiseaseThe purpose of this survey is to identify any concerns regarding the following efficacy and safety-related issues in clinical practice with the new drugs "Fabrazyme for intravenous infusion 5mg" and "Fabrazyme for intravenous infusion 35mg" and to confirm the safety of these products in long-term use in the clinical setting. New adverse drug reactions (ADRs) that cannot be predicted from the Precautions (in particular, clinically significant ADRs) The incidence of ADRs under the actual conditions of use of the drug Causal factors that might potentially affect safety Efficacy evaluation in long-term use This survey will be conducted in accordance with the approval condition established for Fabrazyme: "To conduct a special surveillance of Efficacy and Safety in long term treatment and Pediatric with the drug."