CAMBRIDGE, Mass.--(BUSINESS WIRE)--Dyax Corp. (NASDAQ: DYAX) announced today the publication of results from its second Phase 3, placebo-controlled trial, known as EDEMA4®, evaluating KALBITOR (ecallantide) for the treatment of acute attacks of hereditary angioedema (HAE). The results, published in the June 2010 issue of the Annals of Allergy, Asthma, and Immunology, indicate that KALBITOR is effective in ameliorating HAE attacks, resolving associated symptoms and preventing attack progression. KALBITOR, a selective plasma kallikrein inhibitor that was discovered and developed by Dyax, is available in the U.S. for the treatment of acute attacks of HAE in patients 16 years of age and older.