Transition Therapeutics to Hold Conference Call On Fiscal Year-End 2009 Financial Results On Wednesday, September 16th, At 4:30 P.M. EDT

Transition Therapeutics Inc. ("Transition" or the "Company") (Nasdaq:TTHI) (TSX:TTH) will hold a conference call on Wednesday, September 16, 2009 at 4:30 P.M. EDT to discuss Year-End fiscal 2009 financial results. Dr. Tony Cruz, Chairman and Chief Executive Officer of the Company, will host the call. Transition will announce its financial results for this period in a press release to be issued prior to the call. In order to participate in the conference call, please call 1-800-920-2983 (North America), 1-212-231-2901 (International). A replay of the conference call will be available on Transition's website www.transitiontherapeutics.com for seven days following the call.

About Transition

Transition is a biopharmaceutical company, developing novel therapeutics for disease indications with large markets. Transition's lead products include ELND005 (AZD-103) for the treatment of Alzheimer's disease and TT-223 for the treatment of diabetes. Transition has an emerging pipeline of preclinical drug candidates acquired externally and developed internally using its proprietary drug discovery engine. Transition's shares are listed on the NASDAQ under the symbol "TTHI" and the Toronto Stock Exchange under the symbol "TTH". For additional information about the Company, please visit www.transitiontherapeutics.com.

Notice to Readers: Information contained in our press releases should be considered accurate only as of the date of the release and may be superseded by more recent information we have disclosed in later press releases, filings with the OSC, SEC or otherwise. Except for historical information, this press release may contain forward-looking statements, relating to expectations, plans or prospects for Transition, including conducting clinical trials and potential efficacy of its products. These statements are based upon the current expectations and beliefs of Transition's management and are subject to certain risks and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. These risks and uncertainties include factors beyond Transition's control and the risk factors and other cautionary statements discussed in Transition's quarterly and annual filings with the Canadian commissions.

For further information on Transition, visit www.transitiontherapeutics.com

This news release was distributed by GlobeNewswire, www.globenewswire.com

SOURCE: Transition Therapeutics Inc.

CONTACT:  Transition Therapeutics Inc.
Dr. Tony Cruz, Chief Executive Officer
416-260-7770, x.223
tcruz@transitiontherapeutics.com
Mr. Elie Farah, President and CFO
416-260-7770, x.203
efarah@transitiontherapeutics.com

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