Press Releases
April 13, 2007 at 12:00 AM EDT

Alexion Pharmaceuticals Invites You to Participate in its First Quarter Results Conference Call and Web Cast

CHESHIRE, Conn., April 13, 2007 /PRNewswire-FirstCall via COMTEX News Network/ -- Alexion Pharmaceuticals (Nasdaq: ALXN), today announced that the Company will conduct a conference call and audio web cast on Tuesday, May 1, 2007, at 9:00a.m. Eastern Time (ET), in conjunction with the release of its financial results for the first quarter ended March 31, 2007. Alexion anticipates releasing its financial results at 6:30a.m. ET on Tuesday, May 1, 2007.

To participate in this conference call, dial (913) 981-5533, confirmation code 2484367, shortly before 9:00a.m. ET. A replay of the call will be available from 12:00p.m. ET through a limited time thereafter. The replay number is 719-457-0820, confirmation code 2484367. The audio web cast can be accessed at: http//

SOURCE Alexion Pharmaceuticals

Vikas Sinha, Chief Financial Officer of Alexion Pharmaceuticals, Inc.,
+1-203-272-2596; or David Patti of Makovsky + Company, +1-212-508-9623; or Investors,
Rhonda Chiger of Rx Communications, +1-917-322-2569, both for Alexion Pharmaceuticals


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