Clinical trial NCT00871611: Viennese Prevalence Study of Anderson-Fabry Disease
Official title: Prevalence of Anderson - Fabry Disease in Patients With Left Ventricular Hypertrophy
Study type: OBSERVATIONAL
Overall status: UNKNOWN
Conditions: Fabry Disease
Left Ventricular Hypertrophy
Keywords: Hereditary
Anderson-Fabry
prevalence
heart
hypertrophy
urine
globotriaosylceramide
isoforms
α - Galactosidase
Lead sponsor: Medical University of Vienna
Sponsor class: OTHER
Collaborators: name: Medical University of Graz
First posted: 2009-03-30
Enrollment: 4000
Sex: ALL
Minimum age (years): 18
Maximum age (years): 90
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: Patients with left ventricular hypertrophy diagnosed by echocardiography

Brief summary: The prevalence of Anderson - Fabry disease in patients with left ventricular hypertrophy is unclear. The investigators will examine urine - α - Galactosidase activity and globotriaosylceramide isoforms in these patients.

Detailed description: Anderson - Fabry disease (AFD) is a rare, X - linked hereditary systemic lysosomal storage disorder which usually affects the heart. The reported incidence of AFD is between 1 in 117000 and 1 in 240000 live births. Due to a deficiency of the enzyme α - galactosidase, glycosphingo-lipids, primarily globotriaosylceramide, are stored also in endothelial and myocardial cells, leading to morphologic and functional changes. AFD-cardiomyopathy progresses with age and with the course of the disease, leading to reduced life expectancy. The investigators hypothesize, that AFD could be underdiagnosed in patients with only mild or moderate left ventricular myocardial hypertrophy. Early diagnosis of AFD may be relevant since affected patients might benefit from enzyme replacement therapy at early stage of disease. The investigators will examine 4000 consecutive patients with an echocardiographically measured interventricular septum thickness of ≥ 12mm. Urine samples will be collected and Gb3-isoforms, creatinine and α - Galactosidase activity will be measured.

Eligibility criteria: Inclusion Criteria:

* Patients with myocardial septum wall thickness ≥ 12mm

Exclusion Criteria:

* Patients \< 18 years
* Patients unable to provide urine sample

Primary outcomes:
measure: Prevalence of Anderson - Fabry disease
timeFrame: 2 years
Secondary outcomes:
Other outcomes:
Locations:
city: Vienna
country: Austria
facility: Department of Internal Medicine II, Div. Cardiology, Vienna General Hospital
Study officials:
affiliation: Medical University of Vienna, Dept. Internal Medicine, Cardiology
name: Gerald Mundigler, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Weidemann F, Breunig F. [Cardiac involvement in Fabry's disease]. Med Klin (Munich). 2008 Mar 15;103(3):161-5. doi: 10.1007/s00063-008-1023-1. German.
citation: Linhart A, Kampmann C, Zamorano JL, Sunder-Plassmann G, Beck M, Mehta A, Elliott PM; European FOS Investigators. Cardiac manifestations of Anderson-Fabry disease: results from the international Fabry outcome survey. Eur Heart J. 2007 May;28(10):1228-35. doi: 10.1093/eurheartj/ehm153. Epub 2007 May 5.
citation: Monserrat L, Gimeno-Blanes JR, Marin F, Hermida-Prieto M, Garcia-Honrubia A, Perez I, Fernandez X, de Nicolas R, de la Morena G, Paya E, Yague J, Egido J. Prevalence of fabry disease in a cohort of 508 unrelated patients with hypertrophic cardiomyopathy. J Am Coll Cardiol. 2007 Dec 18;50(25):2399-403. doi: 10.1016/j.jacc.2007.06.062.
citation: Fauler G, Rechberger GN, Devrnja D, Erwa W, Plecko B, Kotanko P, Breunig F, Paschke E. Rapid determination of urinary globotriaosylceramide isoform profiles by electrospray ionization mass spectrometry using stearoyl-d35-globotriaosylceramide as internal standard. Rapid Commun Mass Spectrom. 2005;19(11):1499-506. doi: 10.1002/rcm.1948.