European Patent Office Rules in Favor of Exelixis on Formulation Patent Covering CABOMETYX® (cabozantinib) Tablets

ALAMEDA, Calif.–(BUSINESS WIRE)–Exelixis, Inc. (Nasdaq: EXEL) today announced it has successfully defended European Patent number EP2593090 (c-MET Modulator Pharmaceutical Compositions) against three opponents, STADA Arzneimittel AG, Teva Pharmaceutical Industries Ltd., and Generics (U.K.) Ltd. in a hearing before the Opposition Division of the European Patent Office (EPO). The three-member panel of the Opposition Division rejected all grounds of opposition, thus upholding the patent as granted. The patent at issue, which expires on July 18, 2031, covers tablet formulations of cabozantinib, including the tablet formulation approved as CABOMETYX^® (cabozantinib) tablets by the European Medicines Agency. The decision is specific to the European patent at issue and is subject to appeal to the EPO Technical Boards of Appeal.

About Exelixis

Exelixis is a globally ambitious oncology company innovating next-generation medicines and regimens at the forefront of cancer care. Powered by drug discovery and development excellence, we are rapidly evolving our product portfolio to target an expanding range of tumor types and indications with our clinically differentiated pipeline of small molecules, antibody-drug conjugates and other biotherapeutics. This comprehensive approach harnesses decades of robust investment in our science and partnerships to advance our investigational programs and extend the impact of our flagship commercial product, CABOMETYX^® (cabozantinib). Exelixis is driven by a bold scientific pursuit to create transformational treatments that give more patients hope for the future. For information about the company and its mission to help cancer patients recover stronger and live longer, visit www.exelixis.com, follow @ExelixisInc on X (Twitter), like Exelixis, Inc. on Facebook and follow Exelixis on LinkedIn.

Exelixis Forward-Looking Statements

This press release contains forward-looking statements, including, without limitation, statements related to the outcome of the EPO ruling and the potential for appeal of the EPO decision. Any statements that refer to expectations, projections or other characterizations of future events or circumstances are forward-looking statements and are based upon Exelixis’ current plans, assumptions, beliefs, expectations, estimates and projections. Forward-looking statements involve risks and uncertainties. Actual results and the timing of events could differ materially from those anticipated in the forward-looking statements as a result of these risks and uncertainties, which include, without limitation, the factors detailed from time to time under the caption “Risk Factors” in Exelixis’ most recent Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q, and in Exelixis’ other future filings with the Securities and Exchange Commission. All forward-looking statements in this press release are based on information available to Exelixis as of the date of this press release, and Exelixis undertakes no obligation to update or revise any forward-looking statements contained herein, except as required by law.

Exelixis, the Exelixis logo and CABOMETYX are registered U.S. trademarks of Exelixis.

Contacts

Exelixis Investors Contact:
Susan Hubbard
EVP, Public Affairs and

Investor Relations
(650) 837-8194
[email protected]

Exelixis Media Contact:
Claire McConnaughey
Senior Director,

Public Affairs
(650) 837-7052
[email protected]