On January 22, 2024 Ipsen (Euronext: IPN; ADR: IPSEY) reported new data to be presented for Cabometyx (cabozantinib) in combination with immunotherapy across indications at the upcoming American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Genitourinary Symposium (ASCO GU) taking place on 25-27 January 2024 in San Francisco, U.S (Press release, Ipsen, JAN 22, 2024, View Source [SID1234639407]).
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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 (Abstract #18).
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.
Prostate cancer is the second most common cancer in men1 and for those living with advanced metastatic castration-resistant disease, the prognosis is poor, with an estimated survival of 1-2 years2.
"At the advanced metastatic castration-resistant stage of disease, the prognosis is poor, with a median survival of two years and limited available treatment options," said Stéphane Oudard, Professor of Oncology and Chief of the Oncology Clinical and Translational Research Unit at Georges Pompidou Hospital in Paris, France. "These results from the CONTACT-02 trial represent a positive step in the context of the current treatment landscape, contributing the first positive Phase III data of its kind for the benefit of patients, as we await further data from the overall survival analysis."
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 (Abstract #362).
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.5,6
"Data from our ongoing trials continue to reinforce the value of Cabometyx for patients across a number of challenging tumor types," said Christelle Huguet, EVP and Head of Research and Development, Ipsen. "In combination with immunotherapy, Cabometyx is delivering long-term survival benefits today for people living with renal cell carcinoma worldwide, while also showcasing future potential in metastatic castration-resistant prostate cancer, an area of significant unmet need where no other trials of this modality have proven successful in recent decades."
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 (Abstract #384). 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.