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Pimecrolimus is an immunomodulating agent used in the treatment of atopic dermatitis (eczema). It is currently available as a topical cream, once marketed by Novartis, (however Galderma will be promoting the molecule in Canada in early 2007) under the trade name Elidel.
Additional recommended knowledge
Pimecrolimus is an ascomycin macrolactam derivative. It has been shown in vitro that pimecrolimus binds to macrophilin-12 and inhibits calcineurin. Thus pimecrolimus inhibits T-cell activation by inhibiting the synthesis and release of cytokines from T-cells. Pimecrolimus also prevents the release of inflammatory cytokines and mediators from mast cells.
See also: Immunomodulators in the treatment of eczema
In January 2006, the United States Food and Drug Administration (FDA) announced that Elidel packaging would be required to carry a black box warning regarding the potential increased risk of lymph node or skin malignancy, as for the similar drug tacrolimus. Whereas current practice by UK dermatologists is not to consider this a significant real concern and they are increasingly recommending the use of such new drugs.
Dermatologists' and Allergists' professional societies, the American Academy of Dermatology, and the American Academy of Allergy, Asthma, and Immunology, have protested the inclusion of the black box warning. The AAAAI states "None of the information provided for the cases of lymphoma associated with the use of topical pimecrolimus or tacrolimus in AD indicate or suggest a causal relationship.". In light of the known side effects of steroids which are used first line for many dermatological conditions, many doctors prefer to use this drug instead. In practice, other doctors use the drug as a second-line remedy only after conventional methods of treatment have failed.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Pimecrolimus". A list of authors is available in Wikipedia.|