TUSTIN, CA and LA JOLLA, CA--(Marketwire - June 15, 2010) - Avid Bioservices, Inc., a leading provider of integrated commercial and clinical manufacturing services and a subsidiary of Peregrine Pharmaceuticals, Inc. (NASDAQ: PPHM), is presenting today at IBC Life Sciences' Single-Use Applications for Biopharmaceutical Manufacturing Conference, the largest event focused exclusively on disposables. A pioneer in the early adoption of single-use bioreactors (S.U.B.), Avid will highlight data comparing its S.U.B. (Thermo Scientific HyClone S.U.B.) and its traditional stainless steel bioreactors in the company's cGMP manufacturing facility in Orange County, CA.

"The consistent data from both our 1000 liter S.U.B. and 1000 liter stainless steel bioreactor has allowed us to offer flexibility and scalability for our clients in meeting their commercial and clinical manufacturing requirements," said Steven W. King, president of Avid. "This side-by-side comparison of our bioreactors shows our manufacturing process is consistent and scalable, and offers significant manufacturing efficiencies in the process."

For additional information on this conference, please visit http://www.ibclifesciences.com/singleuse/overview.xml.

About the Thermo Scientific HyClone S.U.B.
The Thermo Scientific HyClone S.U.B. consists of a reusable stainless steel outer support container and S.U.B. BioProcess Container (BPC®) that integrates with existing bioreactor control systems, providing the advantages of single-use bioprocessing without having to install a complete new bioreactor system. The retrofit product replaces the stainless steel bioreactor vessel in existing bioreactor systems, making it a flexible, rapid and economic option to increase bioreactor capacity.

About Avid Bioservices
Avid Bioservices provides a comprehensive range of cGMP manufacturing services for the biotechnology and biopharmaceutical industries. Avid manufactures cGMP commercial and clinical products and has over 10 years of experience producing monoclonal antibodies and recombinant proteins in batch, fed-batch and perfusion modes. Avid's services include cell banking, stability testing, clinical and commercial product manufacturing and purification, bulk packaging, final product filling and regulatory strategy, submission and support. The company also provides a variety of process development activities, including cell line optimization, analytical method development and product characterization. For more information about Avid, visit www.avidbio.com.

Contact Information:

Amy Figueroa
Investor Relations/Corporate Communications
(800) 987-8256