FDA approves expanded use Dyax’s KALBITOR in treatment of acute hereditary angioedema

Dyax Corp. (NASDAQ:DYAX) today announced that the U.S. Food and Drug Administration (FDA) has approved an expansion of the indication for KALBITOR (ecallantide), a peptide inhibitor of plasma kallikrein used in the treatment of acute hereditary angioedema (HAE) attacks, to include patients 12 years of age and older. With this approval, KALBITOR is the first and only subcutaneous therapy available to treat acute attacks of HAE in patients 12 years of age and older. KALBITOR is also the only therapy that is not purified from human plasma that has been approved to treat this patient group.

The FDA approval of this label expansion for KALBITOR is supported by the results from two previously completed Phase 3 placebo-controlled clinical studies, known as EDEMA3® and EDEMA4® as well as the results of study DX-88/19, which was ongoing at the time of the original approval of KALBITOR. The efficacy and safety profile observed in pediatric patients 12 years of age and older is similar to the adult population.

"KALBITOR has an established track record in the HAE marketplace and this FDA approval for the expanded use in pediatric patients is an important achievement for both Dyax and the children and families who are affected by this disease," said Gustav Christensen, President and Chief Executive Officer of Dyax. "We remain committed to providing access to novel therapeutics and first-class patient services to the HAE community."


Dyax Corp.


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