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Trade names | Myozyme, Lumizyme, others |
AHFS/Drugs.com | Monograph |
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Routes of administration | Intravenous [1] [2] |
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Chemical and physical data | |
Formula | C4758H7262N1274O1369S35 [5] |
Molar mass | 105338 g·mol−1 [5] |
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Alglucosidase alfa, sold under the brand name Myozyme among others, is an enzyme replacement therapy (ERT) orphan drug for treatment of Pompe disease (Glycogen storage disease type II), a rare lysosomal storage disorder (LSD). [6] Chemically, the drug is an analog of the enzyme that is deficient in patients affected by Pompe disease, alpha-glucosidase. It is the first drug available to treat this disease. [2]
It was approved for medical use in the United States in April 2006, as Myozyme [7] and in May 2010, as Lumizyme. [8]
Alglucosidase alfa is indicated for people with Pompe disease (GAA deficiency). [1]
In 2014 the U.S. Food and Drug Administration announced the approval of alglucosidase alfa for treatment of people with infantile-onset Pompe disease, including people who are less than eight years of age. In addition, the Risk Evaluation and Mitigation Strategy (REMS) is being eliminated. [9]
Common observed adverse reactions to alglucosidase alfa treatment are pneumonia, respiratory complications, infections and fever. More serious reactions reported include heart and lung failure and allergic shock. Myozyme boxes carry warnings regarding the possibility of life-threatening allergic response. [2]
Some American health plans have refused to subsidize alglucosidase alfa for adults because it lacks approval for treatment in adults, as well as its high cost (US$ 300,000 per year for life). [10]
In 2015, alglucosidase alfa was ranked the costliest drug per patient, with an average charge of US$630,159. [11]
Glycogen storage disease type II(GSD-II), also called Pompe disease, and formerly known as GSD-IIa or Limb–girdle muscular dystrophy2V, is an autosomal recessive metabolic disorder which damages muscle and nerve cells throughout the body. It is caused by an accumulation of glycogen in the lysosome due to deficiency of the lysosomal acid alpha-glucosidase enzyme (GAA). The inability to breakdown glycogen within the lysosomes of cells leads to progressive muscle weakness throughout the body and affects various body tissues, particularly in the heart, skeletal muscles, liver and the nervous system.
Rifapentine, sold under the brand name Priftin, is an antibiotic used in the treatment of tuberculosis. In active tuberculosis it is used together with other antituberculosis medications. In latent tuberculosis it is typically used with isoniazid. It is taken by mouth.
Iduronidase, sold as Aldurazyme, is an enzyme with the systematic name glycosaminoglycan α-L-iduronohydrolase. It catalyses the hydrolysis of unsulfated α-L-iduronosidic linkages in dermatan sulfate.
Miglustat, sold under the brand name Zavesca among others, is a medication used to treat type I Gaucher disease and Pompe disease.
William Canfield is a glycobiologist, chief scientific officer and founder of an Oklahoma City-based biotechnology company, Novazyme, which was acquired by Genzyme in August 2001 and developed, among other things, an enzyme that can stabilize Pompe disease, based on Canfield's ongoing research since 1998. Canfield subsequently left Genzyme and established, with his partner in the Novazyme operation, John Crowley, another research laboratory, which he still heads. He saved Cytovance from bankruptcy by forming an investor group and raising $9 million after Crowley suddenly left the lab in 2005 to become the chief executive officer at Amicus Therapeutics in New Jersey
Velaglucerase alfa, sold under the brand name Vpriv, is a medication used for the treatment of Gaucher disease Type 1. It is a hydrolytic lysosomal glucocerebroside-specific enzyme, which is a recombinant form of glucocerebrosidase. It has an identical amino acid sequence to the naturally occurring enzyme. It is manufactured by Shire plc.
Taliglucerase alfa, sold under the brand name Elelyso among others, is a biopharmaceutical medication developed by Protalix and Pfizer. The drug, a recombinant glucocerebrosidase used to treat Gaucher's disease, is the first plant-made pharmaceutical to win approval by the U.S. Food and Drug Administration (FDA). Each vial has 200 units of taliglucerase alfa.
Apixaban, sold under the brand name Eliquis, is an anticoagulant medication used to treat and prevent blood clots and to prevent stroke in people with nonvalvular atrial fibrillation through directly inhibiting factor Xa. Specifically, it is used to prevent blood clots following hip or knee replacement and in those with a history of prior clots. It is used as an alternative to warfarin and does not require monitoring by blood tests or dietary restrictions. It is taken by mouth.
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Asfotase alfa, sold under the brand name Strensiq, is a medication used in the treatment of people with perinatal/infantile- and juvenile-onset hypophosphatasia.
Migalastat, sold under the brand name Galafold, is a medication for the treatment of Fabry disease, a rare genetic disorder. It was developed by Amicus Therapeutics. The US Food and Drug Administration (FDA) granted it orphan drug status in 2004, and the European Commission followed in 2006. The European Medicines Agency's Committee for Medicinal Products for Human Use (CHMP) granted the drug a marketing approval under the name Galafold in May 2016.
Daprodustat, sold under the brand name Duvroq among others, is a medication that is used for the treatment of anemia due to chronic kidney disease. It is a hypoxia-inducible factor prolyl hydroxylase inhibitor. It is taken by mouth.
Vestronidase alfa, sold under brand name Mepsevii, is a medication for the treatment of Sly syndrome. It is a recombinant form of the human enzyme beta-glucuronidase. It was approved in the United States in November 2017, to treat children and adults with an inherited metabolic condition called mucopolysaccharidosis type VII, also known as Sly syndrome. MPS VII is an extremely rare, progressive condition that affects most tissues and organs.
Autophagic vacuolar myopathy (AVM) consists of multiple rare genetic disorders with common histological and pathological features on muscle biopsy. The features highlighted are vacuolar membranes of the autophagic vacuoles having sarcolemmal characteristics and an excess of autophagic vacuoles. There are currently five types of AVM identified. The signs and symptoms become more severe over the course of the disease. It begins with an inability to pick up small objects and progresses to difficulty in walking. The age of onset varies from early childhood to late adulthood, affecting people of all ages.
Ropeginterferon alfa-2b, sold under the brand name Besremi, is a medication used to treat polycythemia vera. It is an interferon. It is given by injection.
Avalglucosidase alfa, sold under the brand name Nexviazyme, is an enzyme replacement therapy medication used for the treatment of glycogen storage disease type II.
Atidarsagene autotemcel, sold under the brand name Libmeldy among others, is a gene therapy treatment for metachromatic leukodystrophy developed by Orchard Therapeutics. It contains an autologous CD34⁺ cell enriched population that contains haematopoietic stem and progenitor cells transduced using a lentiviral vector encoding the human arylsulfatase A (ARSA) gene.
Olipudase alfa, sold under the brand name Xenpozyme, is a medication used for the treatment of non-central nervous system (CNS) manifestations of acid sphingomyelinase deficiency type A/B or type B.
Cipaglucosidase alfa, sold under the brand name Pombiliti, and used in combination with miglustat, is a medication used for the treatment of glycogen storage disease type II. Cipaglucosidase alfa is a recombinant human acid α-glucosidase enzyme replacement therapy that provides an exogenous source of acid α-glucosidase.