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Ecallantide is a novel treatment for attacks of hereditary angioedema due to C1 inhibitor deficiency

Authors Farkas H, Varga

Published 31 May 2011 Volume 2011:4 Pages 61—68

DOI https://doi.org/10.2147/CCID.S10322

Review by Single anonymous peer review

Peer reviewer comments 2


Henriette Farkas, Lilian Varga
3rd Department of Internal Medicine, Semmelweis University, Budapest, Hungary

Abstract: Hereditary angioedema (HAE) resulting from the deficiency of the C1 inhibitor protein is a rare disease, characterized by paroxysms of edema formation in the subcutis and in the submucosa. Edema can cause obstruction of the upper airway, which may lead to suffocation. Prompt elimination of edema is necessary to save patients from this life-threatening condition. Essentially, these edematous attacks are related to the activation of the kinin-kallikrein system and the consequent release of bradykinin. Ecallantide (known as DX-88 previously), a potent and specific inhibitor of plasma kallikrein is an innovative medicinal product. This is the only agent approved recently by the FDA for all localizations of edematous HAE attacks. Its advantages include no risk of viral contamination, high selectivity, very rapid onset of action, good tolerability, and straightforward subcutaneous administration. Owing to the risk of anaphylaxis, ecallantide should be administered by a health care professional. A postmarketing survey to improve risk-assessment and risk-minimization has been launched. The results of these studies may lead to the approval of ecallantide for self-administration.

Keywords: hereditary angioedema, C1-inhibitor deficiency, treatment, bradykinin, kallikrein inhibitor, subcutaneous administration

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