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Exelixis’ Hepatocellular Carcinoma Drug Granted Orphan Drug Designation from the FDA

SOUTH SAN FRANCISCO, Calif.–(BUSINESS WIRE)–Exelixis, Inc. (Nasdaq: EXEL) today announced that the U.S. Food & Drug Administration (FDA) has granted orphan drug designation to cabozantinib for the treatment of hepatocellular carcinoma (HCC). This information was posted to FDA’s website on March 4, 2017 and can be accessed here. A pivotal phase 3 trial (CELESTIAL) of cabozantinib is ongoing in patients with advanced HCC, and Exelixis has guided that data from the trial are expected in 2017.

Orphan drug status is granted to treatments for diseases that affect fewer than 200,000 people in the U.S. and provides certain incentives for medications intended for the treatment, diagnosis or prevention of rare diseases. At present, these incentives include seven years of marketing exclusivity for the orphan indication, certain federal grants, tax credits and waiver of certain FDA fees.

About the CELESTIAL Trial

CELESTIAL is designed to enroll 760 patients with advanced HCC who received prior sorafenib. Patients are randomized 2:1 to receive 60 mg of cabozantinib daily or placebo. The primary endpoint for the trial is overall survival, and secondary endpoints include objective response rate and progression-free survival. Exploratory endpoints include patient-reported outcomes, biomarkers and safety. The CELESTIAL trial is being conducted at more than 100 sites globally in 19 countries.

About Exelixis

Exelixis, Inc. (Nasdaq: EXEL) is a biopharmaceutical company committed to the discovery, development and commercialization of new medicines to improve care and outcomes for people with cancer. Since its founding in 1994, three products discovered at Exelixis have progressed through clinical development, received regulatory approval, and entered the marketplace. Two are derived from cabozantinib, an inhibitor of multiple tyrosine kinases including MET, AXL and VEGF receptors: CABOMETYX™ tablets approved for previously treated advanced kidney cancer and COMETRIQ® capsules approved for progressive, metastatic medullary thyroid cancer. The third product, Cotellic®, is a formulation of cobimetinib, a selective inhibitor of MEK, is marketed under a collaboration with Genentech (a member of the Roche Group), and is approved as part of a combination regimen to treat advanced melanoma. Both cabozantinib and cobimetinib have shown potential in a variety of forms of cancer and are the subjects of broad clinical development programs. For more information on Exelixis, please visit www.exelixis.com or follow @ExelixisInc on Twitter.

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