AEterna Zentaris Announces Third Quarter Financial Results Conference Call and Webcast QUEBEC, Oct. 28 /PRNewswire-FirstCall/ -- AEterna Zentaris Inc. (TSX: AEZ; Nasdaq: AEZS) announced that its quarterly conference call and webcast have been scheduled for Thursday, November 4, 2004 at 10:00 a.m. Eastern time. The call will follow the press release of AEterna Zentaris' third quarter 2004 financial results issued earlier on the same day. Participants may access the live webcast via the Company's website at http://www.aeternazentaris.com/ in the "investors" section, or by telephone using the following numbers: 416-640-4127, 514-807-8791 or 1-800-814-4941. A replay of the webcast will also be available on the website for a period of 30 days. AEterna Zentaris is a biopharmaceutical company with an extensive portfolio of marketed and development-stage products in oncology, endocrine therapy and infectious diseases. DATASOURCE: AETERNA ZENTARIS INC. (FORMERLY/ANCIENNEMENT - LES LABORATOIRES AETERNA CONTACT: Media Relations: Paul Burroughs, (418) 652-8525 ext. 406, ; Investor Relations: Jacques Raymond, (418) 652-8525 ext. 360, ; U.S. Investor Relations: Lippert/Heilshorn & Associates, Kim Golodetz, (212) 838-3777, ; Europe: Matthias Seeber, +49 69 42602 3425, ; To request a free copy of this organization's annual report, please go to http://www.newswire.ca/ and click on reports@cnw.

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