Exelixis’ Partner Ipsen Receives Positive CHMP Opinion for CABOMETYX® (cabozantinib) for Patients with Previously Treated Advanced Neuroendocrine Tumors

– A regulatory decision by the European Medicines Agency is anticipated in 2025 –

– In March 2025, the U.S. Food and Drug Administration approved CABOMETYX in this setting –

ALAMEDA, Calif.--(BUSINESS WIRE)-- Exelixis, Inc. (Nasdaq: EXEL) today announced that its partner Ipsen received a positive opinion from the European Medicine Agency’s (EMA) Committee for Medicinal Products for Human Use (CHMP) for CABOMETYX® (cabozantinib) for adult patients with unresectable or metastatic, well-differentiated extra-pancreatic (epNET) and pancreatic (pNET) neuroendocrine tumors who have progressed following at least one prior systemic therapy other than somatostatin analogues. The European Commission (EC), which has the authority to approve medicines for the European Union (EU), will now review the CHMP recommendation, and a final decision on the application is expected in the coming months.

“Neuroendocrine tumors are difficult to treat given their indolent nature and lack of robust responses to traditional oncology agents. This often results in people living with this type of cancer for long periods of time and running out of effective options, underscoring the critical need for new treatments following disease progression,” said Amy Peterson, M.D., Executive Vice President, Product Development and Medical Affairs, and Chief Medical Officer. “The CHMP’s recommendation is a pivotal milestone for our partner Ipsen as they work to bring CABOMETYX to patients in Europe, and we look forward to hearing the European Commission’s decision in the coming months.”

The CHMP recommendation is based on results from the phase 3 CABINET pivotal trial, which is evaluating CABOMETYX compared with placebo in two cohorts of patients with previously treated NET: advanced pNET and advanced epNET. CABINET was the basis for the U.S. Food and Drug Administration (FDA) approval of CABOMETYX in March 2025 for the treatment of 1) adult and pediatric patients 12 years of age and older with previously treated, unresectable, locally advanced or metastatic, well-differentiated pNET; and 2) adult and pediatric patients 12 years of age and older with previously treated, unresectable, locally advanced or metastatic, well-differentiated epNET. Final progression-free survival (PFS) results were presented at the 2024 European Society for Medical Oncology Congress and published in The New England Journal of Medicine.

About CABINET (Alliance A021602) CABINET (Randomized, Double-Blinded, Phase III Study of CABozantinib versus Placebo In Patients with Advanced NEuroendocrine Tumors After Progression on Prior Therapy) is sponsored by the National Cancer Institute (NCI), part of the National Institutes of Health, and is being led and conducted by the NCI-funded Alliance for Clinical Trials in Oncology with participation from the NCI-funded National Clinical Trials Network, as part of Exelixis’ collaboration through a Cooperative Research and Development Agreement with the NCI’s Cancer Therapy Evaluation Program.

CABINET is a multicenter, randomized, double-blinded, placebo-controlled phase 3 pivotal trial that enrolled a total of 298 patients in two separate cohorts (pNET and epNET) in the U.S. at the time of the final analysis. Patients were randomized 2:1 to cabozantinib (60 mg) or placebo; each cohort was randomized separately and had its own statistical analysis plan. The trial was stopped early after an interim analysis showed superior efficacy associated with cabozantinib as compared to placebo in each of the two cohorts. Patients with epNET had primary tumors arising in the gastrointestinal (GI) tract, lung, unknown primary sites and other organs. Patients must have had measurable disease per RECIST 1.1 criteria and must have experienced disease progression or intolerance after at least one U.S. FDA-approved line of prior systemic therapy other than somatostatin analogs. The primary endpoint in each cohort was PFS per RECIST 1.1 by blinded independent central review. Secondary endpoints included overall survival, objective response rate and safety. More information about this trial is available at ClinicalTrials.gov.

About NET NET are cancers that begin in the specialized cells of the body’s neuroendocrine system.1 These cells have traits of both hormone-producing endocrine cells and nerve cells.1 It is estimated that 161,000 to 192,000 people in the U.S. are living with unresectable, locally advanced or metastatic NET.2 The number of people diagnosed with NET has been increasing in recent decades.3 Functional NET release peptide hormones that can cause debilitating symptoms, like diarrhea, hypertension and flushing, while symptoms of non-functional NET are related primarily to tumor growth.4,5,6,7,8 Most NET take years to develop and grow slowly, but eventually all patients with advanced or metastatic NET will develop refractory and progressing disease.9,10

NET can start in the pancreas (pNET), where they tend to be more aggressive, with a five-year survival rate of only 23% for advanced disease.1,11 NET can also develop in any part of the body, but most commonly start in the GI tract or in the lungs, where they have historically been referred to as carcinoid tumors and are more recently called epNET.1 The five-year survival rates for advanced GI and lung NET tumors are 68% and 55%, respectively.12,13 For advanced NET patients, treatment options include somatostatin analogs, chemotherapy, molecular targeted therapy and peptide-receptor radionuclide therapy.14

About CABOMETYX® (cabozantinib) In the U.S., CABOMETYX tablets are approved as monotherapy for the treatment of patients with advanced renal cell carcinoma (RCC) and in combination with nivolumab as a first-line treatment for patients with advanced RCC; for the treatment of patients with hepatocellular carcinoma (HCC) who have been previously treated with sorafenib; for adult and pediatric patients 12 years of age and older with locally advanced or metastatic differentiated thyroid cancer (DTC) that has progressed following prior VEGFR-targeted therapy and who are radioactive iodine-refractory or ineligible; for the treatment of adult and pediatric patients 12 years of age and older with previously treated, unresectable, locally advanced or metastatic, well-differentiated pNET; and adult and pediatric patients 12 years of age and older with previously treated, unresectable, locally advanced or metastatic, well-differentiated epNET. CABOMETYX tablets have also received regulatory approvals in over 65 countries outside the U.S. and Japan, including the EU. In 2016, Exelixis granted Ipsen Pharma SAS exclusive rights for the commercialization and further clinical development of cabozantinib outside of the U.S. and Japan. In 2017, Exelixis granted exclusive rights to Takeda Pharmaceutical Company Limited for the commercialization and further clinical development of cabozantinib for all future indications in Japan. Exelixis holds the exclusive rights to develop and commercialize cabozantinib in the U.S.

IMPORTANT SAFETY INFORMATION

WARNINGS AND PRECAUTIONS

Hemorrhage: CABOMETYX can cause severe and fatal hemorrhages. The incidence of Grade 3-5 hemorrhagic events was 5% in CABOMETYX patients in RCC, HCC, and DTC studies. Discontinue CABOMETYX for Grade 3-4 hemorrhage and before surgery. Do not administer to patients who have a recent history of hemorrhage, including hemoptysis, hematemesis, or melena.

Perforations and Fistulas: Fistulas, including fatal cases, and gastrointestinal (GI) perforations, including fatal cases, each occurred in 1% of CABOMETYX patients. Monitor for signs and symptoms, and discontinue CABOMETYX in patients with Grade 4 fistulas or GI perforation.

Thrombotic Events: CABOMETYX can cause arterial or venous thromboembolic event. Venous thromboembolism occurred in 7% (including 4% pulmonary embolism) and arterial thromboembolism in 2% of CABOMETYX patients. Fatal thrombotic events have occurred. Discontinue CABOMETYX in patients who develop an acute myocardial infarction or serious arterial or venous thromboembolic events.

Hypertension and Hypertensive Crisis: CABOMETYX can cause hypertension, including hypertensive crisis. Hypertension was reported in 37% (16% Grade 3 and