Press Releases
January 24, 2007

Alexion to Present at the Wachovia Securities 2007 Healthcare Conference

Alexion to Present at the Wachovia Securities 2007 Healthcare Conference

CHESHIRE, CT, January 24, 2007 -- Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today announced that Dr. Leonard Bell, Chief Executive Officer of Alexion Pharmaceuticals, will present at the Wachovia Securities 2007 Healthcare Conference in Boston at 9:00 a.m. ET on Wednesday, January 31, 2007.

An audio webcast of Dr. Bell's remarks will be available live. You can access the webcast at: http://www.alexionpharm.com. An archived version of the remarks will also be available through the Company's web site for a limited time following the conference.