2009 Press Releases

Onyx Pharmaceuticals to Present at the Barclays Capital Global Healthcare Conference


Emeryville, CA — Mar. 03, 2009

Onyx Pharmaceuticals, Inc. (Nasdaq: ONXX) today announced that it will present at the Barclays Capital Global Healthcare Conference on Tuesday, March 10, at 10:45 a.m. Eastern Time. Interested parties may access a live webcast of the presentation on our website at:

http://www.onyx-pharm.com/view.cfm/32/Event-Calendar

It is recommended that listeners log on 15 minutes early in order to register and download any necessary software. For those unable to participate during the live webcast, a recorded replay of the presentation will be available within 24 hours of the completion of the presentation through April 10, 2009.

Onyx Pharmaceuticals, Inc. is a biopharmaceutical company committed to improving the lives of people with cancer by changing the way cancer is treated™ . The company, in collaboration with Bayer HealthCare Pharmaceuticals, Inc., is developing and marketing Nexavar®, a small molecule drug. Nexavar is currently approved for the treatment of liver cancer and advanced kidney cancer. Additionally, Nexavar is being investigated in several ongoing trials in non-small cell lung cancer, melanoma, breast cancer, and other cancers. For more information about Onyx, visit the company's website at www.onyx-pharm.com.

Nexavar® (sorafenib) tablets is a registered trademark of Bayer Pharmaceuticals Corporation.