Cysteamine: new preparation. Chronic treatment of cystinosis. 1999


(1) Cysteamine bitartrate (also known as mercaptamine) is marketed for the treatment of cystinosis, a rare hereditary disease which, in its juvenile and infantile forms, progresses spontaneously to severe renal and ocular impairment, growth retardation with rickets, and involvement of many other organs. Only symptomatic treatments have been available until now. (2) The clinical file includes only non comparative trials. (3) Few children have been treated with cysteamine beyond the age of 10. Provided treatment is begun early, the main beneficial effects of cysteamine are maintenance of the growth curve and prevention of deterioration of renal lesions (an effect that varies from patient to patient). Oral cysteamine does not prevent the progression of ocular lesions. (4) Cysteamine has many potential adverse effects, some of which are serious (mainly gastrointestinal and neuropsychiatric disorders). Little is known of its long-term adverse effects. (5) The main disadvantage of this treatment is the need for four daily intakes (every 6 hours) and the sulphurous breath it causes. (6) Treatment with cysteamine is expensive.

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D011837 Radiation-Protective Agents Drugs used to protect against ionizing radiation. They are usually of interest for use in radiation therapy but have been considered for other purposes, e.g. military. Radiation Protectant,Radiation Protective Agent,Radiation-Protective Agent,Radiation-Protective Drug,Radioprotective Agent,Radioprotective Agents,Radioprotective Drug,Agents, Radiation-Protective,Radiation Protectants,Radiation Protective Agents,Radiation-Protective Drugs,Radiation-Protective Effect,Radiation-Protective Effects,Radioprotective Drugs,Agent, Radiation Protective,Agent, Radiation-Protective,Agent, Radioprotective,Agents, Radiation Protective,Agents, Radioprotective,Drug, Radiation-Protective,Drug, Radioprotective,Drugs, Radiation-Protective,Drugs, Radioprotective,Effect, Radiation-Protective,Effects, Radiation-Protective,Protectant, Radiation,Protectants, Radiation,Protective Agent, Radiation,Protective Agents, Radiation,Radiation Protective Drug,Radiation Protective Drugs,Radiation Protective Effect,Radiation Protective Effects
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D002986 Clinical Trials as Topic Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries. Clinical Trial as Topic
D003543 Cysteamine A mercaptoethylamine compound that is endogenously derived from the COENZYME A degradative pathway. The fact that cysteamine is readily transported into LYSOSOMES where it reacts with CYSTINE to form cysteine-cysteamine disulfide and CYSTEINE has led to its use in CYSTINE DEPLETING AGENTS for the treatment of CYSTINOSIS. Cysteinamine,Mercaptamine,2-Aminoethanethiol,Becaptan,Cystagon,Cysteamine Bitartrate,Cysteamine Dihydrochloride,Cysteamine Hydrobromide,Cysteamine Hydrochloride,Cysteamine Maleate (1:1),Cysteamine Tartrate,Cysteamine Tartrate (1:1),Cysteamine Tosylate,Cysteamine, 35S-Labeled,Mercamine,Mercaptoethylamine,beta-Mercaptoethylamine,2 Aminoethanethiol,35S-Labeled Cysteamine,Bitartrate, Cysteamine,Cysteamine, 35S Labeled,Dihydrochloride, Cysteamine,Hydrobromide, Cysteamine,Hydrochloride, Cysteamine,Tartrate, Cysteamine,Tosylate, Cysteamine,beta Mercaptoethylamine
D003554 Cystinosis A metabolic disease characterized by the defective transport of CYSTINE across the lysosomal membrane due to mutation of a membrane protein cystinosin. This results in cystine accumulation and crystallization in the cells causing widespread tissue damage. In the KIDNEY, nephropathic cystinosis is a common cause of RENAL FANCONI SYNDROME. Cystine Diathesis,Cystine Disease,Cystine Storage Disease,Cystinoses,Cystinosin, Defect of,Cystinosis, Nephropathic,Lysosomal Cystine Transport Protein, Defect Of,Nephropathic Cystinosis,Cystine Diatheses,Cystine Diseases,Cystine Storage Diseases,Cystinoses, Nephropathic,Defect of Cystinosin,Diatheses, Cystine,Diathesis, Cystine,Nephropathic Cystinoses,Storage Disease, Cystine,Storage Diseases, Cystine
D005060 Europe The continent north of AFRICA, west of ASIA and east of the ATLANTIC OCEAN. Northern Europe,Southern Europe,Western Europe
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths

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