CAMBRIDGE, Mass.--(BUSINESS WIRE)--Dyax Corp. (NASDAQ: DYAX - News) announced today that it has treated the final patient in its second Phase 3, 96-patient trial of DX-88, known as EDEMA4, for the treatment of acute attacks of hereditary angioedema (HAE). HAE is a rare and life-threatening inflammatory condition for which there is no approved therapy in the United States.