Media Release 

Pleasanton, CA / Tuesday, July 12, 2010

Roche obtains co-exclusive license to develop PCR assays detecting mutations in the PI3K oncogene

Roche (SIX: RO, ROG; OTCQX: RHHBY) announced today that the company has obtained a worldwide co-exclusive license for the biomarker PI3K (phosphoinositide 3-kinase) from QIAGEN to develop real-time and endpoint PCR diagnostic assays. Johns Hopkins University owns the patent for the PI3K biomarker and has previously granted an exclusive license to QIAGEN's wholly owned subsidiary DxS, now QIAGEN Manchester. Financial details were not disclosed.

The PI3K pathway is mutated in more cancer patients than any other1, playing a significant role in colorectal, gastric, breast and endometrial tumors, among others. Drugs that inhibit PI3K are a significant focus of current cancer drug development. Genentech, a member of the Roche Group, has several molecules in early development targeting various points along this pathway, in a variety of tumor types.

Multiple scientific papers have shown that PI3K has the potential to be a clinically relevant biomarker for the prediction of individual response to specific cancer therapies. "There is abundant clinical evidence that the PI3K biomarker will play a significant role in the future of oncology treatment," said Paul Brown, president and CEO, Roche Molecular Diagnostics. "Diagnostic assays that detect mutations in PI3K will be an essential component of cancer drug development and personalized healthcare."

Roche has an ongoing program to develop a real-time PCR assay that detects mutations in the PI3K oncogene. The assay will run on Roche's cobas® 4800 System. Roche intends to make the PI3K PCR assay available to internal and external pharmaceutical partners for use in clinical drug trials.

The PI3K assay will complement Roche's extensive menu in development of assays for validated biomarkers, including the B-RAF V600E mutation, found in greater than 50 percent of melanomas.

"Given the demonstrated predictive value of these biomarkers, developing assays that identify clinically relevant mutations is an area of high priority for Roche," said Brown. "By applying our vast, global experience in both cancer drug development and molecular diagnostics, we believe we can quickly generate new assays that will provide value to both drug developers and oncology medical professionals."

About the cobas® 4800 System

The cobas® 4800 System is designed to deliver new standards in laboratory testing efficiency and medically relevant diagnostic information with increased testing throughput. The system combines state-of-the-art sample preparation with Roche's proprietary real-time PCR technology for the amplification and detection of genetic material (deoxyribonucleic acid or DNA). The intuitive, easy-to-use software integrates sample preparation, amplification and detection, and results management.

About Roche

Headquartered in Basel, Switzerland, Roche is a leader in research-focused healthcare with combined strengths in pharmaceuticals and diagnostics. Roche is the world's largest biotech company with truly differentiated medicines in oncology, virology, inflammation, metabolism and CNS. Roche is also the world leader in in-vitro diagnostics, tissue-based cancer diagnostics and a pioneer in diabetes management. Roche's personalized healthcare strategy aims at providing medicines and diagnostic tools that enable tangible improvements in the health, quality of life and survival of patients. In 2009, Roche had over 80,000 employees worldwide and invested almost 10 billion Swiss francs in R&D. The Group posted sales of 49.1 billion Swiss francs. Genentech, United States, is a wholly owned member of the Roche Group. Roche has a majority stake in Chugai Pharmaceutical, Japan. For more information: www.roche.com.

1American Association for Cancer Research. http://www.aacr.org/home/public--media/stand-up-to-cancer/su2c-dream-teams/targeting-the-pi3k-pathway-in-womens-cancers.aspx

All trademarks used or mentioned in this release are protected by law.

For more information please contact:

Brien Mahoney
Manager, Corporate Communications
Roche Molecular Systems, Inc.
Email: brien.mahoney@roche.com
Phone: 925-699-8512

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