Evaluation of Efficacy and Safety of Agalsidase Beta in Heterozygous Females for Fabry Disease (HEART)

Assistance Publique - Hôpitaux de Paris

Status and phase: Unknown; Phase 4

Conditions: Fabry Disease

Treatments: Drug: recombinant alpha-galactosidase A

Study type: Interventional

Funder types: Other

Identifiers

NCT00487630

AOM-01-076

PHRC National 2001

Details and patient eligibility

About

Fabry disease (OMIM 301500) is an X-linked inborn error of sphingolipid metabolism resulting from the deficiency of the lysosomal enzyme alpha-galactosidase A. Heterozygous females for Fabry disease may be symptomatic with cardiac, renal or cerebrovascular involvement. Clearance of Gb3 and stabilization of renal function has been demonstrated in male patients treated with agalsidase beta (FABRAZYME). In contrast, no randomized, controlled study of the efficacy of recombinant alpha-galactosidase A has been reported in heterozygotes for Fabry disease.

Full description

The primary objective is to evaluate cardiac left ventricular mass (measured with echocardiography by unique investigator) in females over 15 years of age affected with Fabry disease receiving 70 mg of agalsidase beta every other week, as compared with an untreated controlled group matched for gender and age.

The secondary objectives include evaluation of :

• left ventricular posterior wall thickness (echocardiography)
• interventricular septum thickness (echocardiography)
• tissue doppler imaging (myocardial function)
• EKG
• creatinaemia
• serum cystatin C level
• urinary protein/creatinine ratio
• microalbuminuria
• Gb3 urinary levels

Evaluation of tolerance and safety with :

• Home therapy infusions follow up
• Vitals
• Physical examination
• Adverse events
• Antibodies levels

Enrollment: 34 estimated patients

Sex: Female

Ages: 15+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Female patients over 15 years with clinical and biological evidence of Fabry disease (GLA gene mutation detected)

Exclusion criteria

• Pregnancy
• Allergy to agalsidase beta
• Congestive heart failure
• Creatinaemia > 135 µmol/l
• Medical history of stroke during the last year
• Medical history of more than 2 transient ischemic attack
• Blood pressure > 160/95
• Modification in medications treating for blood pressure during the last 3 months before enrollment
• Complete absence of clinical or biological symptoms
• Weight > 87 kg or < 35 kg

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)