Conference Call/Webcast Alert: Corixa Corporation First Quarter 2005 Earnings Conference Call.

SEATTLE -- Corixa Corp. (Nasdaq:CRXA), a developer of immunotherapeutics, will hold a live conference call and webcast to discuss the company's first quarter 2005 financial results. Earnings will be announced in a press release issued after the close of U.S. financial markets on Monday, May 9, 2005.

Conference Call Date and Time:

Monday, May 9, 2005

5:00 p.m. ET / 2:00 p.m. PT

Access Via the Web:

Participants can sign up in the Investors section of Corixa's web site: http://www.corixa.com/default.asp?pid=investor.

Access Via the Phone:

Participants can access the conference call by dialing 800-818-5264 or 913-981-4910.

Those unable to participate in the conference call can access a recorded rebroadcast by going to the Investors section of Corixa's web site (www.corixa.com) or by dialing 888-203-1112 or 719-457-0820 and entering code 5886134. The call will be rebroadcast from May 9, 2005 at 8:00 p.m. ET to May 30, 2005 at 11:59 p.m. ET.