AEterna Zentaris to Present at Upcoming UBS Warburg Global Life Sciences Conference in New York

QUEBEC CITY, Sept. 20 /PRNewswire-FirstCall/ - AEterna Zentaris Inc. , a global biopharmaceutical company focused on endocrine therapy and oncology, today announced that its President and CEO, David J. Mazzo, Ph.D., will present a Company overview at the UBS Global Life Sciences Conference on Thursday, September 27, 2007 at 10:00 a.m. Eastern, in the Ballroom E of the Grand Hyatt Hotel in New York City.

A live webcast of this presentation will be available on AEterna Zentaris’ website at www.aeternazentaris.com in the Investors section. A replay will also be available for a period of 30 days on the Company’s website.

About AEterna Zentaris Inc.

AEterna Zentaris Inc. is global biopharmaceutical company focused on endocrine therapy and oncology with proven expertise in drug discovery, development and commercialization.

News releases and additional information are available at www.aeternazentaris.com.

AETERNA ZENTARIS INC.

CONTACT: Jenene Thomas, Senior Director, Investor Relations & CorporateCommunications, (908) 938-1475, jenene.thomas@aeternazentaris.com; PaulBurroughs, Media Relations, (418) 652-8525 ext. 406,paul.burroughs@aeternazentaris.com

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