Onyx Pharmaceuticals Announces Second Quarter 2004 Financial Results Webcast and Teleconference

Onyx Pharmaceuticals Announces Second Quarter 2004 Financial
Results Webcast and Teleconference 


RICHMOND, Calif., Aug. 2  /PRNewswire-FirstCall/ -- Onyx Pharmaceuticals, Inc.
(NASDAQ:ONXX) today announced that it will webcast a teleconference discussing
its second quarter 2004 financial results on Monday, August 9, 2004, at 5:00
p.m. Eastern Time (2:00 p.m. Pacific Time).  Financial results for the second
quarter ended June 30, 2004 will be released earlier that day.

Interested parties may access a live webcast of the presentation at:
http://audioevent.mshow.com/179451 or by dialing 706-679-4614 and using the
passcode 9143944.  A replay of the presentation will be available on the Onyx
website or by dialing 706-645-9291 and using the passcode 9143944 approximately
three hours after the teleconference concludes.  The replay will be available
through September 9, 2004.

Onyx Pharmaceuticals is engaged in the development of novel cancer therapies
that target the molecular basis of cancer.  With its collaborators, the company
is developing small molecule drugs, including BAY 43-9006 with Bayer
Pharmaceuticals Corporation.   For more information about Onyx's pipeline and
activities, visit the company's website at http://www.onyx-pharm.com/. 

DATASOURCE: Onyx Pharmaceuticals, Inc.



CONTACT:  Julie Wood of Onyx Pharmaceuticals, Inc., [phone]



Web site:  http://www.onyx-pharm.com/ 

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