Exelixis, Inc. announced results demonstrating efficacy benefits regardless of prior nephrectomy status with CABOMETYX® (cabozantinib) in combination with Bristol Myers Squibb’s OPDIVO® (nivolumab) versus sunitinib for patients with previously untreated advanced renal cell carcinoma (RCC). The data, from a post-hoc exploratory analysis of the phase 3 CheckMate -9ER pivotal trial, will be presented as an ePoster available on demand beginning at September 16 during the 2021 European Society of Medical Oncology (ESMO) Congress (abstract 663P). As previously announced, the phase 3 CheckMate -9ER pivotal trial showed that CABOMETYX in combination with OPDIVO improved overall survival (OS) and doubled median progression-free survival (PFS) and objective response rate (ORR) versus sunitinib in patients with previously untreated advanced RCC. In this new exploratory analysis presented at ESMO 2021, at a median follow-up of 23.5 months, PFS and ORR benefits were observed regardless of prior nephrectomy status. The magnitudes of PFS and ORR benefits associated with CABOMETYX in combination with OPDIVO were greater in the subgroup of patients with prior nephrectomy versus those without prior nephrectomy. See table below for additional details. In CheckMate -9ER, CABOMETYX in combination with OPDIVO was generally well tolerated and reflected the known safety profiles of the tyrosine kinase inhibitor and immunotherapy components in previously untreated advanced RCC. The most common adverse reactions reported in at least 20% of patients treated with CABOMETYX in combination with OPDIVO were diarrhea, fatigue, hepatotoxicity, palmar-plantar erythrodysesthesia, stomatitis, rash, hypertension, hypothyroidism, musculoskeletal pain, decreased appetite, nausea, dysgeusia, abdominal pain, cough and upper respiratory tract infection. A safety analysis with extended follow-up reported at the 2021 American Society of Clinical Oncology’s Genitourinary Cancers Symposium identified no new safety signals; among patients treated with OPDIVO and CABOMETYX, 6.6% discontinued both agents due to treatment-related adverse events, 9.7% discontinued OPDIVO only and 7.2% discontinued CABOMETYX only.