Exelixis, Inc.NASDAQ: EXEL

Exelixis Enters into a Clinical Collaboration for Three Phase 3 Combination Trials for Patients with Advanced Solid Tumors

· Issued by Exelixis, Inc. via Business Wire

– New pivotal trials will evaluate the combination of cabozantinib and atezolizumab in patients with advanced non-small cell lung cancer, castration-resistant prostate cancer and renal cell carcinoma –

– Collaboration based on data from phase 1b COSMIC-021 trial –

ALAMEDA, Calif.--(BUSINESS WIRE)-- Exelixis, Inc. (NASDAQ:EXEL) today announced a collaboration agreement with Roche to evaluate cabozantinib (CABOMETYX®), Exelixis’ small molecule inhibitor of receptor tyrosine kinases, in combination with atezolizumab (TECENTRIQ®), Roche’s PD-L1 immune checkpoint inhibitor, in patients with locally advanced or metastatic solid tumors. The clinical program, which will be co-funded by the companies, is expected to include three phase 3 pivotal trials in advanced non-small cell lung cancer (NSCLC), castration-resistant prostate cancer (CRPC) and renal cell carcinoma (RCC).

“Encouraging phase 1 data suggests this combination of cabozantinib and atezolizumab may improve outcomes for patients with prostate, lung and kidney cancers, and we look forward to collaborating with Roche to learn more in these pivotal trials,” said Michael M. Morrissey, Ph.D., President and Chief Executive Officer of Exelixis. “This clinical collaboration is an important further step in our committed efforts to maximize the value of the cabozantinib franchise through these cost-sharing clinical collaborations in additional high-impact indications, while building value with new compounds from internal and external sources in 2020 and beyond.”

The clinical development collaboration builds on encouraging activity observed in the phase 1b COSMIC-021 trial. The trial is currently enrolling 24 expansion cohorts in 12 tumor types including RCC, NSCLC and CRPC.

TECENTRIQ® (atezolizumab) is a registered trademark of Genentech, a member of the Roche Group.

About CABOMETYX® (cabozantinib)

In the U.S., CABOMETYX tablets are approved for the treatment of patients with advanced RCC and for the treatment of patients with hepatocellular carcinoma who have been previously treated with sorafenib. CABOMETYX tablets have also received regulatory approvals in the European Union and additional countries and regions worldwide.

About Exelixis’ Collaboration with Ipsen

On February 29, 2016, Exelixis and Ipsen jointly announced an exclusive licensing agreement for the commercialization and further development of cabozantinib indications outside of the United States, Canada and Japan. On December 21, 2016, this agreement was amended to include commercialization rights for Ipsen in Canada. Under the parties’ collaboration agreement, if Ipsen opts to participate in funding these phase 3 trials, or future studies, Ipsen will have access to the respective study results to support potential future regulatory submissions in their territory.

About Exelixis’ Collaboration with Takeda

On January 30, 2017, Exelixis and Takeda jointly announced an exclusive licensing agreement for the commercialization and further development of cabozantinib indications in Japan. Under the parties’ collaboration agreement, if Takeda opts to participate in funding these phase 3 trials, or future studies, Takeda will have access to the respective study results to support potential future regulatory submissions in their territory.

Exelixis holds the exclusive rights to develop and commercialize cabozantinib in the United States.

U.S. Important Safety Information

  • Hemorrhage: Severe and fatal hemorrhages occurred with CABOMETYX. The incidence of Grade 3 to 5 hemorrhagic events was 5% in CABOMETYX patients. Discontinue CABOMETYX for Grade 3 or 4 hemorrhage. Do not administer CABOMETYX to patients who have a recent history of hemorrhage, including hemoptysis, hematemesis, or melena.
  • Perforations and Fistulas: GastrointestinaI (GI) perforations, including fatal cases, occurred in 1% of CABOMETYX patients. Fistulas, including fatal cases, occurred in 1% of CABOMETYX patients. Monitor patients for signs and symptoms of perforations and fistulas, including abscess and sepsis. Discontinue CABOMETYX in patients who experience a fistula that cannot be appropriately managed or a GI perforation.
  • Thrombotic Events: CABOMETYX increased the risk of thrombotic events. Venous thromboembolism occurred in 7% (including 4% pulmonary embolism) and arterial thromboembolism in 2% of CABOMETYX patients. Fatal thrombotic events occurred in CABOMETYX patients. Discontinue CABOMETYX in patients who develop an acute myocardial infarction or serious arterial or venous thromboembolic event requiring medical intervention.
  • Hypertension and Hypertensive Crisis: CABOMETYX can cause hypertension, including hypertensive crisis. Hypertension occurred in 36% (17% Grade 3 and