Genzyme receives Complete Response Letter from FDA on Lemtrada™ (alemtuzumab) application Genzyme, 30 Dec 2013 Accessed on 10 Jan 2014 from http://news.genzyme.com/press-release/genzyme-receives-complete-response-letter-fda-lemtrada-alemtuzumab-application. CommentRecommendBookmarkWatch