Ipsen announced new data to be presented for Cabometyx® (cabozantinib) in combination with immunotherapy across indications at the upcoming American Society of Clinical Oncology Genitourinary Symposium (ASCO GU) taking place on 25-27 January 2024 in San Francisco, U.S. Detailed top-line results from the Phase III CONTACT-02 trial of the combination of Cabometyx and atezolizumab versus a second novel hormone therapy (NHT) in people living with metastatic castration-resistant prostate cancer (mCRPC) and measurable extra-pelvic soft tissue disease who have progressed on one prior NHT, are to be presented as an oral presentation. With a median follow-up of 14.3 months, data from the primary analysis of progression-free survival (PFS) from the CONTACT-02 trial demonstrated a statistically significant PFS benefit for the combination of Cabometyx and atezolizumab of 6.3 months versus 4.2 months for a second NHT (hazard ratio [HR]: 0.65, 95% confidence interval [CI]: 0.50-0.84; p=0.0007). At an interim analysis for the other primary endpoint of overall survival (OS), the data demonstrated a trend toward improvement for the combination, however, these data were immature, and the trial will continue to the next planned analysis, anticipated in 2024.

Safety for the combination appeared to be consistent with the known safety profiles of the individual medicines, and no new safety signals were identified. Also, four-year extended follow-up data from the landmark Phase III CheckMate -9ER trial investigating the combination of Cabometyx and nivolumab versus sunitinib in people living with previously untreated advanced renal cell carcinoma (aRCC) will be presented. With a median follow-up of 55.6 months for OS, the combination of Cabometyx and nivolumab demonstrated a sustained and clinically meaningful OS benefit versus sunitinib, with an absolute median OS gain of 10.5 months (46.5 months for the combination vs 36.0 months for sunitinib, HR 0.77, 95% CI: 0.63-0.95).

Additionally, median PFS remained almost double that for the combination versus sunitinib, at 16.4 vs 8.4 months respectively (HR 0.58, 95% CI: 0.49-0.70). The safety profile was consistent with the known safety profiles of the individual medicines, and no new safety signals were identified. Renal cell carcinoma is the most common form of kidney cancer3, 4 and for the 30% of people diagnosed with an advanced form of the disease, the 5-year survival rate is low at 12%, with no identified cure for this disease.

Additionally, health-related quality of life (HRQoL) data from a modelling analysis based on the CheckMate 9ER trial explored the link between HRQoL and clinical outcomes at a median follow-up of 32.9 months . These data provide further patient-focused context to the benefits of the combination of Cabometyx and nivolumab, whilst also reinforcing the association of the combination with an increased chance of tumor shrinkage, survival and progression-free survival, independent of early HRQoL deterioration.