Gaucher's disease or Gaucher disease (GD) is a genetic disorder in which glucocerebroside accumulates in cells and certain organs. The disorder is characterized by bruising, fatigue, anemia, low blood platelet count and enlargement of the liver and spleen, and is caused by a hereditary deficiency of the enzyme glucocerebrosidase, which acts on glucocerebroside. When the enzyme is defective, glucocerebroside accumulates, particularly in white blood cells and especially in macrophages. Glucocerebroside can collect in the spleen, liver, kidneys, lungs, brain, and bone marrow.
Glycogen storage disease type II, also called Pompe disease, and formerly known as GSD-IIa. It 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. GSD-II and Danon disease are the only glycogen storage diseases with a defect in lysosomal metabolism, and Pompe disease was the first glycogen storage disease to be identified, in 1932 by the Dutch pathologist J. C. Pompe.
β-Glucocerebrosidase is an enzyme with glucosylceramidase activity that cleaves by hydrolysis the β-glycosidic linkage of the chemical glucocerebroside, an intermediate in glycolipid metabolism that is abundant in cell membranes. It is localized in the lysosome, where it remains associated with the lysosomal membrane. β-Glucocerebrosidase is 497 amino acids in length and has a molecular mass of 59,700 Da.
α-Galactosidase is a glycoside hydrolase enzyme that catalyses the following reaction:
Alglucerase was a biopharmaceutical drug for the treatment of Gaucher's disease. It was a modified form of human β-glucocerebrosidase enzyme, where the non-reducing ends of the oligosaccharide chains have been terminated with mannose residues.
Genzyme was an American biotechnology company based in Cambridge, Massachusetts. Since its acquisition in 2011, Genzyme has been a fully owned subsidiary of Sanofi. In 2010, Genzyme was the world's third-largest biotechnology company, employing more than 11,000 people around the world. As a subsidiary of Sanofi, Genzyme has a presence in approximately 65 countries, including 17 manufacturing facilities and 9 genetic-testing laboratories. Its products are also sold in 90 countries. In 2007, Genzyme generated $3.8 billion in revenue with more than 25 products on the market. In 2006 and 2007, Genzyme was named one of Fortune magazine’s “100 Best Companies to Work for”. The company donated $83 million worth of products worldwide; in 2006, it made $11 million in cash donations. In 2005, Genzyme was awarded the National Medal of Technology, the highest level of honor awarded by the president of the United States to America's leading innovators. In February 2022, Sanofi's new corporate brand was unveiled and former entity "Sanofi Genzyme" got integrated into Sanofi.
Miglustat, sold under the brand name Zavesca among others, is a medication used to treat type I Gaucher disease and Pompe disease.
Afegostat was an experimental drug for the treatment of certain forms of Gaucher's disease that was being developed by Amicus Therapeutics and Shire plc until a failed clinical trial in 2009 led to termination of its development. The substance was used in form of the tartrate.
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.
Protalix BioTherapeutics is an Israeli pharmaceutical company that manufactures a plant-based enzyme, taliglucerase alfa, which has received U.S. Food and Drug Administration approval for the treatment of Gaucher disease.
Eliglustat, sold under the brand name Cerdelga, is a medication used for the treatment of Gaucher's disease. It was discovered at the University of Michigan, developed by Genzyme Corp, and was approved by the FDA in August 2014. Commonly used as the tartrate salt, the compound is believed to work by inhibition of glucosylceramide synthase. According to an article in Journal of the American Medical Association the oral substrate reduction therapy resulted in "significant improvements in spleen volume, hemoglobin level, liver volume, and platelet count" in untreated adults with Gaucher disease Type 1.
The New England Enzyme Center (NEEC) was created at the Tufts University School of Medicine in Boston, Massachusetts in 1964 as a federally supported biochemical resource center.
Henri A. Termeer was a Dutch biotechnology executive and entrepreneur who is considered a pioneer in corporate strategy in the biotechnology industry for his tenure as CEO at Genzyme. Termeer created a business model adopted by many others in the biotech industry by garnering steep prices— mainly from insurers and government payers— for therapies for rare genetic disorders known as orphan diseases that mainly affect children. Genzyme uses biological processes to manufacture drugs that are not easily copied by generic-drug makers. The drugs are also protected by orphan drug acts in various countries which provides extensive protection from competition and ensures coverage by publicly funded insurers. As CEO of Genzyme from 1981 to 2011, he developed corporate strategies for growth including optimizing institutional embeddedness nurturing vast networks of influential groups and clusters: doctors, private equity, patient-groups, insurance, healthcare umbrella organizations, state and local government, and alumni. Termeer was "connected to 311 board members in 17 different organizations across 20 different industries" He has the legacy of being the "longest-serving CEO in the biotechnology industry.
Specialty pharmacy refers to distribution channels designed to handle specialty drugs — pharmaceutical therapies that are either high cost, high complexity and/or high touch. High touch refers to higher degree of complexity in terms of distribution, administration, or patient management which drives up the cost of the drugs. In the early years specialty pharmacy providers attached "high-touch services to their overall price tags" arguing that patients who receive specialty pharmaceuticals "need high levels of ancillary and follow-up care to ensure that the drug spend is not wasted on them." An example of a specialty drug that would only be available through specialty pharmacy is interferon beta-1a (Avonex), a treatment for MS that requires a refrigerated chain of distribution and costs $17,000 a year. Some specialty pharmacies deal in pharmaceuticals that treat complex or rare chronic conditions such as cancer, rheumatoid arthritis, hemophilia, H.I.V. psoriasis, inflammatory bowel disease (IBD) or Hepatitis C. "Specialty pharmacies are seen as a reliable distribution channel for expensive drugs, offering patients convenience and lower costs while maximizing insurance reimbursements from those companies that cover the drug. Patients typically pay the same co-payments whether or not their insurers cover the drug." As the market demanded specialization in drug distribution and clinical management of complex therapies, specialized pharma (SP) evolved.„ Specialty pharmacies may handle therapies that are biologics, and are injectable or infused. By 2008 the pharmacy benefit management dominated the specialty pharmacies market having acquired smaller specialty pharmacies. PBMs administer specialty pharmacies in their network and can "negotiate better prices and frequently offer a complete menu of specialty pharmaceuticals and related services to serve as an attractive 'one-stop shop' for health plans and employers."
Sebelipase alfa, sold under the brand name Kanuma, is a recombinant form of the enzyme lysosomal acid lipase (LAL) that is used as a medication for the treatment of lysosomal acid lipase deficiency (LAL-D). It is administered via intraveneous infusion. It was approved for medical use in the European Union and in the United States in 2015.
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.
Vestronidase alfa, sold under brand name Mepsevii, is a drug 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.
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 (ASMD) 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.
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