Alexion Pharmaceuticals Inc. Invites You To Participate In Its 2005 Year End Results Conference Call And Web Cast

CHESHIRE, Conn., Feb. 8 /PRNewswire-FirstCall/ -- Alexion Pharmaceuticals , today announced that the Company will conduct a conference call and audio web cast on Tuesday, February 14, 2006, at 8:30 a.m. Eastern Time (ET), in conjunction with the release of its financial results for the year ended December 31, 2005. Alexion anticipates releasing its financial results at 6:30 a.m. ET on Tuesday, February 14, 2006.

To participate in this conference call, dial (719) 457-2727, confirmation code 7167764, shortly before 8:30 a.m. ET. A replay of the call will be available from 11:30a.m. ET through midnight Monday, February 20, 2006. The replay number is 719-457-0820, confirmation code 7167764. The audio web cast can be accessed at: http://www.alexionpharm.com.

Contacts: Alexion Pharmaceuticals, Inc. Rx Communications Leonard Bell, M.D. Rhonda Chiger (Investors) Chief Executive Officer (917) 322-2569 (203) 272-2596 Noonan/Russo Emily Poe (Media) (212) 845-4266

Alexion Pharmaceuticals, Inc.

CONTACT: Leonard Bell, M.D., Chief Executive Officer of AlexionPharmaceuticals, Inc., +1-203-272-2596; or Investors: Rhonda Chiger of RxCommunications, +1-917-322-2569; or Media: Emily Poe of Noonan/Russo,+1-212-845-4266, both for Alexion Pharmaceuticals, Inc.

Back to news