|View printer-friendly version|
“The positive outcome of CABOSUN is extremely exciting, as it marks the
very first time that a therapy has shown a progression-free survival
benefit over standard of care first-line treatment sunitinib for
patients with previously untreated advanced renal cell carcinoma,” said
“All of us at the
“Demonstrating an improvement in progression-free survival with
cabozantinib compared to sunitinib as a first-line treatment represents
an important milestone for patients with previously untreated RCC,” said
About the CABOSUN Study
CABOSUN is a randomized, open-label, active-controlled phase 2 trial
that was designed to enroll 150 patients with advanced RCC determined to
be intermediate- or poor-risk by the
Please see Important Safety Information below and full U.S. prescribing information at https://cabometyx.com/downloads/cabometyxuspi.pdf.
About Advanced Renal Cell Carcinoma
The American Cancer Society’s 2016 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 percent, with no identified cure for the disease.1 Approximately 30,000 patients in the U.S. and 68,000 globally require treatment.3
The majority of clear cell RCC tumors have lower than normal levels of a
CABOMETYX targets include MET, AXL and VEGFR-1, -2 and -3. In preclinical models, cabozantinib has been shown to inhibit the activity of these receptors, which are involved in normal cellular function and pathologic processes such as tumor angiogenesis, invasiveness, metastasis and drug resistance.
CABOMETYX, the tablet formulation of cabozantinib, is available in 20 mg, 40 mg or 60 mg doses. The recommended dose is 60 mg orally, once daily.
Important Safety Information
Hemorrhage: Severe hemorrhage occurred with CABOMETYX. The incidence of Grade ≥3 hemorrhagic events was 2.1% in CABOMETYX-treated patients and 1.6% in everolimus-treated patients. Fatal hemorrhages also occurred in the cabozantinib clinical program. Do not administer CABOMETYX to patients that have or are at risk for severe hemorrhage.
Gastrointestinal (GI) Perforations and Fistulas: Fistulas were reported in 1.2% (including 0.6% anal fistula) of CABOMETYX-treated patients and 0% of everolimus-treated patients. GI perforations were reported in 0.9% of CABOMETYX-treated patients and 0.6% of everolimus-treated patients. Fatal perforations occurred in the cabozantinib clinical program. Monitor patients for symptoms of fistulas and perforations. Discontinue CABOMETYX in patients who experience a fistula that cannot be appropriately managed or a GI perforation.
Thrombotic Events: CABOMETYX treatment results in an increased incidence of thrombotic events. Venous thromboembolism was reported in 7.3% of CABOMETYX-treated patients and 2.5% of everolimus-treated patients. Pulmonary embolism occurred in 3.9% of CABOMETYX-treated patients and 0.3% of everolimus-treated patients. Events of arterial thromboembolism were reported in 0.9% of CABOMETYX-treated patients and 0.3% of everolimus-treated patients. Fatal thrombotic events occurred in the cabozantinib clinical program. Discontinue CABOMETYX in patients who develop an acute myocardial infarction or any other arterial thromboembolic complication.
Hypertension and Hypertensive Crisis: CABOMETYX treatment results in an increased incidence of treatment-emergent hypertension. Hypertension was reported in 37% (15% Grade ≥3) of CABOMETYX-treated patients and 7.1% (3.1% Grade ≥3) of everolimus-treated patients. Monitor blood pressure prior to initiation and regularly during CABOMETYX treatment. Withhold CABOMETYX for hypertension that is not adequately controlled with medical management; when controlled, resume CABOMETYX at a reduced dose. Discontinue CABOMETYX for severe hypertension that cannot be controlled with anti-hypertensive therapy. Discontinue CABOMETYX if there is evidence of hypertensive crisis or severe hypertension despite optimal medical management.
Diarrhea: Diarrhea occurred in 74% of patients treated with CABOMETYX and in 28% of patients treated with everolimus. Grade 3 diarrhea occurred in 11% of CABOMETYX-treated patients and in 2% of everolimus-treated patients. Withhold CABOMETYX in patients who develop intolerable Grade 2 diarrhea or Grade 3-4 diarrhea that cannot be managed with standard antidiarrheal treatments until improvement to Grade 1; resume CABOMETYX at a reduced dose. Dose modification due to diarrhea occurred in 26% of patients.
Palmar-Plantar Erythrodysesthesia Syndrome (PPES): Palmar-plantar erythrodysesthesia syndrome (PPES) occurred in 42% of patients treated with CABOMETYX and in 6% of patients treated with everolimus. Grade 3 PPES occurred in 8.2% of CABOMETYX-treated patients and in <1% of everolimus-treated patients. Withhold CABOMETYX in patients who develop intolerable Grade 2 PPES or Grade 3 PPES until improvement to Grade 1; resume CABOMETYX at a reduced dose. Dose modification due to PPES occurred in 16% of patients.
Reversible Posterior Leukoencephalopathy Syndrome (RPLS): RPLS, a syndrome of subcortical vasogenic edema diagnosed by characteristic finding on MRI, occurred in the cabozantinib clinical program. Perform an evaluation for RPLS in any patient presenting with seizures, headache, visual disturbances, confusion, or altered mental function. Discontinue CABOMETYX in patients who develop RPLS.
Embryo-fetal Toxicity: CABOMETYX can cause fetal harm when administered to a pregnant woman. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with CABOMETYX and for 4 months after the last dose.
Adverse Reactions: The most commonly reported (≥25%) adverse reactions are: diarrhea, fatigue, nausea, decreased appetite, PPES, hypertension, vomiting, weight decreased, and constipation.
Drug Interactions: Strong CYP3A4 inhibitors and inducers: Reduce the dosage of CABOMETYX if concomitant use with strong CYP3A4 inhibitors cannot be avoided. Increase the dosage of CABOMETYX if concomitant use with strong CYP3A4 inducers cannot be avoided.
Lactation: Advise a lactating woman not to breastfeed during treatment with CABOMETYX and for 4 months after the final dose.
Reproductive Potential: Contraception―Advise females of reproductive potential to use effective contraception during treatment with CABOMETYX and for 4 months after the final dose. Infertility ―CABOMETYX may impair fertility in females and males of reproductive potential.
Hepatic Impairment: Reduce the CABOMETYX dose in patients with mild (Child-Pugh score [C-P] A) or moderate (C-P B) hepatic impairment. CABOMETYX is not recommended for use in patients with severe hepatic impairment.
Forward-Looking Statement Disclaimer
This press release contains forward-looking statements, including,
without limitation, statements related to: the therapeutic potential of
cabozantinib as a treatment for previously untreated patients following
their diagnosis with advanced RCC; plans to present the final results
from CABOSUN at a future medical conference; potential next steps in the
development and submission strategy for cabozantinib as a treatment of
first-line advanced RCC and other genitourinary malignancies; the
eligibility of Exelixis’ MAA for cabozantinib in second line advanced
RCC for an expedited review by the EMA; Exelixis’ commitment to
developing small molecule therapies for the treatment of cancer; and
Exelixis’ primary focus on the development and commercialization of
cabozantinib. Words such as “committed,” “will,” “may”, “potential”,
“become”, “pursue”, “next”, “look forward”, “eligible,” “focusing,” or
other similar expressions identify forward-looking statements, but the
absence of these words does not necessarily mean that a statement is not
forward-looking. In addition, any statements that refer to expectations,
projections or other characterizations of future events or circumstances
are forward-looking statements. These forward-looking statements 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: Exelixis’ dependence on decisions in connection with the
CABOSUN study made by The Alliance for Clinical Trials in Oncology as
part of Exelixis’ collaboration with the NCI-CTEP; Exelixis’ dependence
on third-party vendors; risks and uncertainties related to regulatory
application, review, and approval processes and Exelixis’ compliance
with applicable legal and regulatory requirements; Exelixis’ ability to
conduct clinical trials of cabozantinib sufficient to achieve a positive
completion; and other factors discussed under the caption “Risk Factors”
in Exelixis’ annual report on Form 10-K filed with the Securities and
Exchange Commission (
American Cancer Society. Cancer Facts & Figures 2016. Atlanta: American Cancer Society; 2016.
Jonasch E., Gao J., Rathmell W.K., Renal cell carcinoma. BMJ. 2014; 349:g4797.
Decision Resources Report: Renal Cell Carcinoma. October 2014 (internal data on file).
Harshman, L.C. and Choueiri, T.K., Targeting the hepatocyte growth factor/c-Met signaling pathway in renal cell carcinoma. Cancer J. 2013; 19(4):316-23.
Rankin et al., Direct regulation of GAS6/AXL signaling by HIF promotes renal metastasis through SRC and MET. Proc Natl Acad Sci U S A. 2014; 111(37):13373-8.
Zhou L, Liu X-D, Sun M, et al. Targeting MET and AXL overcomes resistance to sunitinib therapy in renal cell carcinoma. Oncogene. 2015 Sep 14. doi:10.1038/onc.2015.343. [Epub ahead of print].
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(9):5902–5912.
Takahashi A, Sasaki H, Kim SJ, 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.
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.
Susan Hubbard, 650-837-8194
Investor Relations & Corporate Communications
Lindsay Treadway, 650-837-7522