DX-88 and HAE: a developmental perspective

An example of an approach to the developmental philosophy of novel recombinant products is explored by using the exemplar of Hereditary Angioedema (HAE). Plasma kallikrein is believed to be an important mediator of angioedema in patients with genetic deficiency of C1 esterase inhibitor (HAE patients). DX-88, a novel Kunitz domain produced by phage display (a powerful method of generating novel binders to potentially therapeutic targets), is a potent and selective inhibitor of plasma kallikrein which in early clinical studies demonstrates a useful efficacy/safety ratio in the treatment of acute attacks of HAE.


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