– CONTACT-03 is the third of three phase 3 pivotal trials that are part of a clinical collaboration with Roche –
ALAMEDA, CA, USA I July 20, 2020 IExelixis, Inc. (NASDAQ: EXEL) today announced the initiation of CONTACT-03, a global phase 3 pivotal trial of cabozantinib (CABOMETYX®) in combination with atezolizumab (TECENTRIQ®) in patients with inoperable, locally advanced or metastatic renal cell carcinoma (RCC) who progressed during or following treatment with an immune checkpoint inhibitor as the immediate preceding therapy. CONTACT-03 is part of a clinical trial collaboration between Exelixis and Roche that includes two additional phase 3 pivotal trials – CONTACT-01 in patients with metastatic non-small cell lung cancer (NSCLC) who have been previously treated with an immune checkpoint inhibitor and platinum-containing chemotherapy and CONTACT-02 in patients with metastatic castration-resistant prostate cancer (CRPC) who have been previously treated with one novel hormonal therapy – both initiated in June 2020.
“The treatment landscape for metastatic kidney cancer is rapidly evolving as the use of immune checkpoint inhibitor-based regimens move to earlier lines of therapy,” said Gisela Schwab, M.D., President, Product Development and Medical Affairs and Chief Medical Officer, Exelixis. “More data are needed to better understand the sequential use of treatments for this patient community, and we look forward to learning more about the potential role of the combination of cabozantinib and atezolizumab following checkpoint inhibitor therapy in this pivotal trial with our partner Roche.”
CONTACT-03 is a global, multicenter, randomized, phase 3, open-label study that aims to enroll approximately 500 patients. Patients will be randomized 1:1 to the experimental arm of cabozantinib in combination with atezolizumab or the control arm of cabozantinib alone. The co-primary endpoints of the trial are progression-free survival per Response Evaluation Criteria in Solid Tumors (RECIST) v. 1.1 as assessed by independent review and overall survival. Secondary endpoints include progression-free survival, objective response rate and duration of response as assessed by the investigators. The CONTACT-03 trial is sponsored by Roche and co-funded by Exelixis.
The design of CONTACT-03 was informed by the ongoing COSMIC-021 trial — a phase 1b study of cabozantinib in combination with atezolizumab in multiple advanced solid tumors including RCC, NSCLC and CRPC. More information about CONTACT-03 is available at ClinicalTrials.gov (NCT04338269).
About RCC
The American Cancer Society’s 2020 statistics cite kidney cancer as among the top ten most commonly diagnosed forms of cancer among both men and women in the U.S.1 Clear cell RCC is the most common type of kidney cancer in adults.2 If detected in its early stages, the five-year survival rate for RCC is high; for patients with advanced or late-stage metastatic RCC, however, the five-year survival rate is only 12%.2 Approximately 32,000 patients in the U.S. and 71,000 worldwide will require systemic treatment for advanced kidney cancer in 2020.3
About 70% of RCC cases are known as “clear cell” carcinomas, based on histology.4 The majority of clear cell RCC tumors have below-normal levels of a protein called von Hippel-Lindau, which leads to higher levels of MET, AXL and VEGF.5,6 These proteins promote tumor angiogenesis (blood vessel growth), growth, invasiveness and metastasis.7,8,9,10 MET and AXL may provide escape pathways that drive resistance to VEGF receptor inhibitors.6,7
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 HCC who have been previously treated with sorafenib. CABOMETYX tablets have also received regulatory approvals in the European Union and additional countries and regions worldwide.
CABOMETYX in combination with atezolizumab is not indicated for metastatic renal cell carcinoma.
About Exelixis’ Collaboration with Ipsen
On February 29, 2016, Exelixis and Ipsen jointly announced an exclusive collaboration agreement for the further development and commercialization of cabozantinib 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 this phase 3 trial, or future studies, it 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 this phase 3 trial, or future studies, it 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.
About Exelixis
Founded in 1994, Exelixis, Inc. (NASDAQ: EXEL) is a commercially successful, oncology-focused biotechnology company that strives to accelerate the discovery, development and commercialization of new medicines for difficult-to-treat cancers. Following early work in model system genetics, we established a broad drug discovery and development platform that has served as the foundation for our continued efforts to bring new cancer therapies to patients in need. Our discovery efforts have resulted in four commercially available products, CABOMETYX® (cabozantinib), COMETRIQ® (cabozantinib), COTELLIC® (cobimetinib) and MINNEBRO® (esaxerenone), and we have entered into partnerships with leading pharmaceutical companies to bring these important medicines to patients worldwide. Supported by revenues from our marketed products and collaborations, we are committed to prudently reinvesting in our business to maximize the potential of our pipeline. We are supplementing our existing therapeutic assets with targeted business development activities and internal drug discovery — all to deliver the next generation of Exelixis medicines and help patients recover stronger and live longer. Exelixis is a member of the Standard & Poor’s (S&P) MidCap 400 index, which measures the performance of profitable mid-sized companies. For more information about Exelixis, please visit www.exelixis.com, follow @ExelixisInc on Twitter or like Exelixis, Inc. on Facebook.
1 American Cancer Society: Cancer Facts & Figures 2020. Available at: https://www.cancer.org/content/dam/cancer-org/research/cancer-facts-and-statistics/annual-cancer-facts-and-figures/2020/cancer-facts-and-figures-2020.pdf. Accessed July 2020.
2 Jonasch, E., Gao, J., Rathmell, W., Renal cell carcinoma. BMJ. 2014; 349:g4797.
3 Decision Resources Report: Renal Cell Carcinoma. October 2014 (internal data on file).
4 American Cancer Society: What is Kidney Cancer? Available at: https://www.cancer.org/cancer/kidney-cancer/about/what-is-kidney-cancer.html. Accessed July 2020.
5 Harshman, L., and Choueiri, T. Targeting the hepatocyte growth factor/c-Met signaling pathway in renal cell carcinoma. Cancer J. 2013; 19:316-323.
6 Rankin, et al. Direct regulation of GAS6/AXL signaling by HIF promotes renal metastasis through SRC and MET. Proc Natl Acad Sci USA. 2014; 111:13373-13378.
7 Zhou, L., Liu, X-D., Sun, M., et al. Targeting MET and AXL overcomes resistance to sunitinib therapy in renal cell carcinoma. Oncogene. 2016; 35:2687-2697.
8 Koochekpour, et al. The von Hippel-Lindau tumor suppressor gene inhibits hepatocyte growth factor/scatter factor-induced invasion and branching morphogenesis in renal carcinoma cells. Mol Cell Biol. 1999; 19:5902–5912.
9 Takahashi, A., Sasaki, H., Kim, S., et al. Markedly increased amounts of messenger RNAs for vascular endothelial growth factor and placenta growth factor in renal cell carcinoma associated with angiogenesis. Cancer Res. 1994; 54:4233-4237.
10 Nakagawa, M., Emoto, A., Hanada, T., Nasu, N., Nomura, Y. Tubulogenesis by microvascular endothelial cells is mediated by vascular endothelial growth factor (VEGF) in renal cell carcinoma. Br J Urol. 1997; 79:681-687.
SOURCE: Exelixis
