TORONTO, April 3 /CNW/ - Transition Therapeutics Inc. ("Transition") (TSX: TTH - News) announced today that the United States Food and Drug Administration ("FDA") has granted Fast Track designation to investigational drug candidate AZD-103/ELND005, being developed in collaboration with Elan Corporation, plc. ("Elan") (NYSE: ELN - News) for the treatment of Alzheimer's disease. AZD-103/ELND005 is currently being evaluated in multiple Phase I clinical studies, and the companies anticipate starting Phase II clinical studies around the end of 2007.