Lipid Storage Disorders Medication
- Author: Lynne Ierardi-Curto, MD, PhD; Chief Editor: Bruce Buehler, MD more...
Medication Summary
Recombinant enzymes may be used to treat Gaucher and Fabry disease.
Enzyme replacement therapies
Class Summary
Specific recombinant enzymes are available to treat Gaucher and Fabry Disease.
Imiglucerase (Cerezyme)
A recombinant-derived analog of beta-glucocerebrosidase. It is an enzyme used for replacement therapy in type 1 Gaucher disease. Catalyzes hydrolytic cleavage of glucocerebroside (a glycoprotein) to glucose and ceramide within the lysosomes of phagocytic cells in the reticuloendothelial system. This normally is a catabolic pathway of membrane lipids derived from hematologic cell turnover. A deficiency of this enzyme results in accumulation of glucocerebroside within tissue macrophages, which become engorged with the glycolipid. Treatment improves anemia and thrombocytopenia, reduces spleen and liver size, and decreases cachexia.
Velaglucerase alfa (VPRIV)
Hydrolytic lysosomal glucocerebroside-specific enzyme indicated for long-term enzyme replacement therapy for type 1 Gaucher disease. Improves symptoms associated with the disease, including anemia, thrombocytopenia, increased spleen and liver size, and cachexia.
Agalsidase alfa (Fabrazyme, Replagal)
Recombinant form of the human enzyme alpha-galactosidase A, levels of which are deficient in Fabry disease. Data from clinical trials show a decrease in GL-3 levels following enzyme replacement, reversal in lipid tissue storage, stabilized or improved renal and cardiac function, and reduced or relief from neuropathic pain. Following enzyme replacement, the long-term use of neuropathic pain medication has been reduced.
Both agalsidase beta and alpha forms are designated as orphan drugs. Agalsidase beta (Fabrazyme) is manufactured by Genzyme Corporation (Cambridge, Mass) and is based on expression of the human GLA gene in CHO cells.
Agalsidase alfa (Replagal) is manufactured by Transkaryotic Therapies, Inc (Cambridge, Mass) and is based on activation of the human GLA gene expression in human (skin) fibroblasts.
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