Aventis Profile: Aventis Events (4) January 27, 2003: FDA Does Not Approve Drug Ketek, Requests Additional Information 2003-01-27 March 25, 2004: FDA Memo Discusses Problems with 2001-2002 Clinical Study for Ketek 2004-03-25 April 1, 2004: FDA Approves Ketek 2004-04-01 Early June 2001: FDA Requests Additional Studies for Drug Ketek