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2014

Phase III Trial of Bayer's Investigational Compound Regorafenib (BAY 73-4506) in Metastatic Colorectal Cancer Meets Primary Endpoint of Improving Overall Survival

Trial stopped based on data from a pre-planned interim analysis

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WAYNE, N.J., Oct. 26, 2011 /PRNewswire/ -- Bayer HealthCare Pharmaceuticals today announced results from its Phase III trial evaluating its investigational compound regorafenib (BAY 73-4506) for the treatment of patients with metastatic colorectal cancer (mCRC) whose disease has progressed after approved standard therapies: The trial met its primary endpoint of statistically significant improvement in overall survival. This is the result of a pre-planned interim analysis conducted by an independent Data Monitoring Committee (DMC) of the CORRECT (Patients with metastatic colorectal cancer treated with regorafenib or placebo after failure of standard therapy) trial. Per the recommendation of the DMC, the study has been unblinded and patients in the placebo arm will be offered treatment with regorafenib. In this trial, the safety and tolerability of regorafenib were generally as expected. Data from the study are expected to be presented at a forthcoming scientific meeting.

"These data are significant because they demonstrate that regorafenib increased overall survival in patients with heavily pretreated metastatic colorectal cancer, an area of high unmet medical need," said Kemal Malik, MD, Head of Global Development and member of the Bayer HealthCare Executive Committee.

Bayer will continue discussions with health authorities worldwide, including the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA), regarding next steps in filing for approval of regorafenib in the treatment of mCRC.

Bayer recently entered into an agreement with Onyx Pharmaceuticals, Inc. under which Onyx will receive a royalty on any future global net sales of regorafenib in oncology.

About the CORRECT Study

The CORRECT trial is an international, multicenter, randomized, double-blind, placebo-controlled study that enrolled 760 patients with mCRC whose disease has progressed after approved standard therapies. The study was conducted in North America, Europe, China, Japan and Australia.

Patients were randomized to receive either regorafenib plus best supportive care (BSC) or placebo plus BSC. Treatment cycles consisted of 160 mg of regorafenib (or matching placebo) once daily for three weeks on / one week off plus BSC. The primary endpoint of this trial was overall survival. Secondary endpoints included progression-free survival, objective tumor response rate and disease control rate. The safety and tolerability of the two treatment groups were also compared.

About Colorectal Cancer

Colorectal cancer (CRC) is a disease in which malignant (cancer) cells form in the tissues of the colon or rectum. The majority of cancers occurring in the colon and rectum are adenocarcinomas, which account for more than 90 percent of all large bowel tumors.(1)

Colorectal cancer is the third most commonly diagnosed cancer and the third leading cause of cancer death in the United States, in both men and women. It is estimated that more than 140,000 people will be diagnosed with CRC in 2011, and nearly 50,000 people will die from the disease.(2) Approximately 50 percent of colon cancer patients will be diagnosed with metastases (most commonly to the liver) either at the time of diagnosis or due to recurrent disease.(3)

About Regorafenib

Regorafenib is an investigational oral multi-kinase inhibitor of angiogenic, stromal and oncogenic receptor tyrosine kinases (TK)(4) and is currently being investigated in clinical trials for its potential to treat patients with various tumor types.

Regorafenib is an investigational agent and is not approved by the FDA, EMA or other health authorities.  

Regorafenib was granted orphan drug designation by the FDA for the treatment of patients with gastrointestinal stromal tumors (GIST). Orphan drug designation aims to encourage the development of drugs involved in the diagnosis, prevention or treatment of a medical condition affecting fewer than 200,000 people in the country.

Regorafenib was granted Fast Track designation by the FDA for the treatment of patients with metastatic and/or unresectable GIST whose disease has progressed despite at least imatinib and sunitinib as prior treatments, as well as for the treatment of patients with mCRC who have progressed after approved standard therapies. Fast Track is a process designed to facilitate the development, and expedite the review of drugs to treat serious diseases and fill an unmet medical need.

About Bayer HealthCare Pharmaceuticals Inc.

Bayer HealthCare Pharmaceuticals Inc. is the U.S.-based pharmaceuticals business of Bayer HealthCare LLC, a subsidiary of Bayer AG. Bayer HealthCare is one of the world's leading, innovative companies in the healthcare and medical products industry, and combines the activities of the Animal Health, Consumer Care, Diabetes Care, and Pharmaceuticals divisions. As a specialty pharmaceutical company, Bayer HealthCare Pharmaceuticals provides products for Diagnostic Imaging, General Medicine, Hematology, Neurology, Oncology and Women's Healthcare. The company's aim is to discover and manufacture products that will improve human health worldwide by diagnosing, preventing and treating diseases.  

BAYER (reg'd) and the Bayer Cross (reg'd) are trademarks of Bayer.

Forward-Looking Statements

This release may contain forward-looking statements based on current assumptions and forecasts made by Bayer Group or subgroup management. Various known and unknown risks, uncertainties and other factors could lead to material differences between the actual future results, financial situation, development or performance of the company and the estimates given here. These factors include those discussed in Bayer's public reports which are available on the Bayer website at www.bayer.com. The company assumes no liability whatsoever to update these forward-looking statements or to conform them to future events or developments.

(1)  American Cancer Society. What is colorectal cancer? Available at:

http://www.cancer.org/Cancer/ColonandRectumCancer/DetailedGuide/colorectal-cancer-what-is-colorectal-cancer. Accessed on October 25, 2011.

(2)  American Cancer Society. Colorectal Cancer. Available at: http://www.cancer.org/Cancer/ColonandRectumCancer/DetailedGuide/colorectal-cancer-key-statistics. Accessed on October 25, 2011.

(3)  National Cancer Institute. Stage IV and Recurrent Colon Cancer. Available at: http://www.cancer.gov/cancertopics/pdq/treatment/colon/HealthProfessional/page9. Accessed on October 24, 2011.

(4)  S. Wilhelm, et al.  Regorafenib (Bay 73-4506): A New Oral Multikinase Inhibitor of Angiogenic, Stromal, and Oncogenic Receptor Tyrosine Kinases with Potent Preclinical Antitumor Activity. Online International Journal of Cancer. December 17, 2010.

SOURCE Bayer HealthCare



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