AEterna Zentaris to Announce First Quarter 2008 Financial and Operating Results and Hold Annual Shareholder Meeting on May 7, 20

QUEBEC CITY, May 1 /PRNewswire-FirstCall/ - AEterna Zentaris Inc. (NASDAQ: AEZS, TSX: AEZ), a global biopharmaceutical company focused on endocrine therapy and oncology, will announce its first quarter 2008 financial and operating results before market open on Wednesday, May 7, 2008. The Company will host a conference call and webcast to discuss these results later that same day at 4:00 p.m., Eastern Time.

Participants may access the live webcast via the Company's website at www.aezsinc.com in the "Investors" section, or by telephone using the following numbers: 416-644-3425, 514-807-8791 or 800-796-7558. A replay of the webcast will also be available on the Company's website for a period of 30 days.

The Company further announced that it will hold its Annual Shareholder Meeting also on Wednesday, May 7, starting at 10:00 a.m. Eastern Time, in the Alfred Rouleau Room of the Hyatt Regency Hotel, 1255 Jeanne-Mance, in Montreal.

About AEterna Zentaris Inc.

AEterna Zentaris Inc. is a 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.aezsinc.com.

SOURCE AETERNA ZENTARIS INC.