Alglucosidase Alfa Temporary Access Program
Summary
Pompe disease (also known as glycogen storage disease Type II) is caused by a deficiency of a critical enzyme in the body called acid alpha-glucosidase (GAA). Normally, GAA is used by the body's cells to break down glycogen (a stored form of sugar) within specialized structures called lysosomes. In patients with Pompe disease, an excessive amount of glycogen accumulates and is stored in various tissues, especially heart and skeletal muscle, which prevents their normal function. The objective of this expanded access study is to provide patients with Pompe disease in the United States (US), access to alglucosidase alfa produced from a scaled up manufacturing process for a limited time until production at this scale is approved for commercial use by the Food and Drug Administration.
Study Design
N/A
Conditions
Glycogen Storage Disease Type II (GSD-II)
Intervention
alglucosidase alfa (recombinant human acid alpha-glucosidase [rhGAA])
Location
Sheffield
Alabama
United States
Status
Available
Source
Genzyme
Results (where available)
Links
- Source: http://clinicaltrials.gov/show/NCT00520143
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
Thyrotropin Alfa
A highly purified recombinant glycoprotein form of human THYROID-STIMULATING HORMONE, produced by recombinant DNA technology comprising two non-covalently linked subunits, an alpha subunit of 92 amino acid residues containing two N-linked glycosylation sites, and a beta subunit of 118 residues containing one N-linked glycosylation site. The amino acid sequence of thyrotropin alfa is identical to that of human pituitary thyroid stimulating hormone.
Glycogen Debranching Enzyme System
1,4-alpha-D-Glucan-1,4-alpha-D-glucan 4-alpha-D-glucosyltransferase/dextrin 6 alpha-D-glucanohydrolase. An enzyme system having both 4-alpha-glucanotransferase (EC 2.4.1.25) and amylo-1,6-glucosidase (EC 3.2.1.33) activities. As a transferase it transfers a segment of a 1,4-alpha-D-glucan to a new 4-position in an acceptor, which may be glucose or another 1,4-alpha-D-glucan. As a glucosidase it catalyzes the endohydrolysis of 1,6-alpha-D-glucoside linkages at points of branching in chains of 1,4-linked alpha-D-glucose residues. Amylo-1,6-glucosidase activity is deficient in glycogen storage disease type III.
Epoetin Alfa
This recombinant erythropoietin, a 165-amino acid glycoprotein (about 62% protein and 38% carbohydrate), regulates red blood cell production. Epoetin alfa is produced by Chinese hamster ovary cells into which the human erythropoietin gene has been inserted. (USP Dictionary of USAN and International Drug Names, 1996).
Alpha-glucosidases
Enzymes that catalyze the exohydrolysis of 1,4-alpha-glucosidic linkages with release of alpha-glucose. Deficiency of alpha-1,4-glucosidase may cause GLYCOGEN STORAGE DISEASE TYPE II.
Interferon Alfa-2b
A recombinant alfa interferon consisting of 165 amino acid residues with arginine in position 23 and histidine in position 34. It is used extensively as an antiviral and antineoplastic agent.
Clinical Trials
GSD-II (also known as Pompe disease) is caused by a deficiency of a critical enzyme in the body called acid alpha-glucosidase (GAA). Normally, GAA is used by the body's cells to break down...
Expanded Access Use of Myozyme (Alglucosidase Alfa) in Patients With Infantile-onset Pompe Disease
Pompe disease (also known as glycogen storage disease Type II) is caused by a deficiency of a critical enzyme in the body called acid alpha-glucosidase (GAA). Normally, GAA is used by the...
Expanded Access Use of Myozyme (Alglucosidase Alfa) in Patients With Late-Onset Pompe Disease
Pompe disease (also known as glycogen storage disease Type II) is caused by a deficiency of a critical enzyme in the body called acid alpha-glucosidase (GAA). Normally, GAA is used by the...
Pompe disease (also known as glycogen storage disease Type II) is caused by a deficiency of a critical enzyme in the body called acid alpha-glucosidase (GAA). Normally, GAA is used by the...
Immune Tolerance Induction Study
An exploratory, open-labeled study of patients with Pompe disease, who have previously received Myozyme (alglucosidase alfa) treatment, to evaluate the efficacy, safety and clinical benefi...
PubMed Articles
Enzyme replacement therapy in late-onset Pompe disease: a systematic literature review.
Glycogen storage disease type 2/Pompe disease is a progressive muscle disorder with a wide range of phenotypic presentations, caused by an inherited deficiency of acid alpha-glucosidase. Since 2004 on...
The role of immune tolerance induction in restoration of the efficacy of ERT in Pompe disease.
Pompe disease is a lysosomal storage disorder caused by deficiency in the enzyme acid α-glucosidase (GAA). Pompe disease is characterized by the accumulation of glycogen, predominantly in muscle tiss...
Long-term follow-up results in enzyme replacement therapy for Pompe disease: a case report.
Pompe disease (PD) is a metabolic myopathy caused by a deficiency of acid-alpha glucosidase (GAA), a lysosomal enzyme that cleaves glycogen. The classic infantile-onset form is characterised by severe...
OBJECTIVES: Type II glycogenosis (GSDII) is a lysosomal storage disorder due to acid alpha-glucosidase (GAA) deficiency. Enzyme replacement therapy (ERT) with human recombinant alpha-glucosidase (rhGA...
Microbial conversion of unsaturated fatty acids often leads to special changes in their product structures and in biological potential. In our continuous effort to screen natural products for their an...
