Ipsen (Euronext: IPN; ADR: IPSEY) today announced presentation of new analyses at the European Society for Medical Oncology (ESMO) Congress 2021 across different forms of cancer for people treated with Cabometyx® (cabozantinib). Of note, the final analysis of the pivotal Phase III COSMIC-311 trial (Abstract LBA67) will be presented, with Cabometyx demonstrating a clinically meaningful, sustained efficacy benefit versus placebo in people living with previously treated radioactive iodine-refractory differentiated thyroid cancer (RAI-R DTC).
With a median follow-up of 10.1 months, Cabometyx continued to demonstrate superior median progression-free survival (mPFS) with a reduction in the risk of disease progression or death of 78% versus placebo (hazard ratio [HR]: 0.22, 96% confidence interval [CI]: 0.15-0.32; p<0.0001).1 This final analysis is consistent with data from the interim analysis, presented at the American Society of Clinical Oncology (ASCO) Annual Meeting 2021 and published in The Lancet Oncology, (HR: 0.22; 96% CI: 0.13-0.36; p<0.0001).5,6 Further data from the final analysis also confirmed that superior efficacy with Cabometyx was maintained irrespective of previous vascular endothelial growth factor receptor (VEGFR)-targeted therapy.
Efficacy and safety data from the COSMIC-311 interim analysis formed the basis of a type II variation submission to the European Medicines Agency (EMA) for an extension of indication for Cabometyx in RAI-R DTC. On 14 August 2021, the EMA validated the type II variation, confirming the submission is complete and beginning its centralized review process.
The safety profile identified in the COSMIC-311 trial was consistent with that previously observed for cabozantinib and adverse events (AEs) were managed with dose modifications. The discontinuation rate due to treatment-emergent AEs (TEAEs) was 8.8% for Cabometyx vs. 0% for placebo. Grade 3/4 TEAEs occurred in 62% of patients who received Cabometyx vs. 28% for placebo, with no treatment-related grade 5 events.
Steven Hildemann, M.D., Executive Vice President, Chief Medical Officer, Head of Global Medical Affairs and Global Patient Safety, Ipsen said, “The therapeutic potential of Cabometyx as a key treatment option in our arsenal against a broad range of tumors is continuing to be realized. These final data from the COSMIC-311 trial are a strong example of how Cabometyx can make a tangible difference to the lives of people living with cancer and we look forward to receiving a decision from the EMA next year. We are committed to further evaluating the role Cabometyx may continue to play against difficult-to-treat cancers as we also look towards the results of the ongoing Phase III trials in non-small cell lung cancer (CONTACT-01) and metastatic castration-resistant prostate cancer (CONTACT-02).”
Additional data to be presented at ESMO featuring Cabometyx include new results from cohort 6 of the COSMIC-021 Phase Ib trial evaluating the combination of Cabometyx and atezolizumab in people living with previously treated metastatic castration-resistant prostate cancer (mCRPC) (Abstract LBA24).2 These additional analyses build on the interim data presented at ASCO 2020,7 with an expanded cohort 6 of 132 patients evaluated.2 With a median follow-up of 15.2 months, the primary endpoint of objective response rate (ORR) assessed by investigator per RECIST 1.1 (response evaluation criteria in solid tumours) was 23%, with three patients demonstrating a complete response (CR).2
Prof. Dr. Gunhild von Amsberg, University Medical Center Hamburg-Eppendorf (UKE) and investigator in the CONTACT-02 trial, said, “As a uro-oncologist, I am encouraged by the results presented at this year’s ESMO congress. For people living with advanced metastatic castration-resistant prostate cancer, the prognosis is often poor and the potential of new innovative therapies is critically important. Based on these clinically meaningful results of Cabometyx plus atezolizumab from cohort 6 of the COSMIC-021 trial, we now look forward to the results of the ongoing Phase III CONTACT-02.”
Further analyses from the landmark Phase III CheckMate -9ER trial investigating the combination of Cabometyx and nivolumab were are also being presented at ESMO, providing additional evidence to inform clinical decision-making in advanced renal cell carcinoma (RCC). New data demonstrated improved efficacy for Cabometyx and nivolumab regardless of prior nephrectomy status, when measured by PFS, ORR, CR and response durability outcomes, versus sunitinib (Abstract 663P).3 Additionally, a matching-adjusted indirect comparison analysis is being presented, demonstrating superior, statistically significant differences in health-related quality of life across all outcomes analysed in favour of Cabometyx and nivolumab versus the combination of axitinib and pembrolizumab (Abstract 668P).4
More information on these data can be found during the presentation sessions outlined below:
Date and time
Cabozantinib in combination with atezolizumab in patients with metastatic castration-resistant prostate cancer (mCRPC): results of expanded cohort 6 of the COSMIC-021 Study
Saturday 18 September
Cabozantinib Versus Placebo in Patients With Radioiodine-Refractory Differentiated Thyroid Cancer (DTC) Who Have Progressed After Prior VEGFR-Targeted Therapy: Updated Results From the Phase 3 COSMIC-311 Trial
Monday 20 September
First-line nivolumab + cabozantinib (NIVO+CABO) vs sunitinib (SUN) in patients (pts) with advanced renal cell carcinoma (aRCC) in subgroups based on prior nephrectomy in the CheckMate 9ER trial
Poster presentation – Available on-demand beginning September 16 at 8:30 am CEST
Matching-adjusted indirect comparison (MAIC) of health-related quality of life (HRQoL) of nivolumab plus cabozantinib (N+C) vs pembrolizumab plus axitinib (P+A) in previously untreated advanced renal cell carcinoma (aRCC)
Poster presentation – Available on-demand beginning September 16 at 8:30 am CEST
About radioactive iodine-refractory differentiated thyroid cancer (RAI-R DTC)
In 2020, over 580,000 new cases of thyroid cancer were diagnosed worldwide.8 Thyroid cancer is the ninth most commonly occurring cancer globally and incidence is three times higher in women than in men, with the disease representing one in every 20 cancers diagnosed among women.7 While cancerous thyroid tumors include differentiated, medullary and anaplastic forms, differentiated thyroid tumors make up about 90 to 95% of cases.9,10 These include papillary, follicular and Hürthle cell cancer.7,8 DTC is typically treated with surgery, followed by ablation of the remaining thyroid tissue with radioactive iodine (RAI), but approximately 5 to 15% of cases are resistant to RAI treatment.11 Patients who develop RAI-R DTC have a poor prognosis with an average estimated survival of three to five years.12
About the COSMIC-311 trial
COSMIC-311 is a multicenter, randomized, double-blind, placebo-controlled Phase III trial that enrolled 258 patients at 164 sites globally.6 Patients were randomized in a 2:1 ratio to receive either Cabometyx 60 mg or placebo once-daily.6 The primary endpoints were progression-free survival and objective response rate, evaluated by a blinded independent radiology committee. Additional endpoints include safety, overall survival and quality of life.2 More information about this trial is available at ClinicalTrials.gov.
About metastatic castration-resistant prostate cancer (mCRPC)
In 2020, over 1.4 million new cases of prostate cancer were diagnosed worldwide,13 making it the fourth most commonly occurring cancer globally.13 Prostate cancer that has spread beyond the prostate and does not respond to androgen-suppression therapies which reduce the levels of testosterone, a common treatment for prostate cancer, is known as mCRPC.14 Men diagnosed with mCRPC often have a poor prognosis, with an estimated survival of 1-2 years.15
About the COSMIC-021 trial
COSMIC-021 is a multicenter, Phase Ib, open-label trial that is divided into two parts: a dose-escalation phase and an expansion cohort phase. The dose-escalation phase was designed to enroll patients either with advanced renal cell carcinoma (RCC) with or without prior systemic therapy or with inoperable, locally advanced, metastatic or recurrent urothelial carcinoma (UC), (including renal, pelvis, ureter, urinary bladder and urethra) after prior platinum-based therapy. Ultimately, all 12 patients who enrolled in this stage of the trial were patients with advanced RCC. The dose-escalation phase of the study determined the optimal dose of cabozantinib to be 40 mg daily when given in combination with atezolizumab (1200 mg infusion once every 3 weeks).
In the expansion phase, the trial is enrolling 24 cohorts in 12 tumor types: RCC, urothelial carcinoma, non-small cell lung cancer, CRPC, hepatocellular carcinoma, triple-negative breast cancer, epithelial ovarian cancer, endometrial cancer, gastric or gastroesophageal junction adenocarcinoma, colorectal adenocarcinoma, head and neck cancer, and DTC.
Four of the cohorts are exploratory single agent cohorts. In UC, NSCLC, CRPC with cabozantinib as a single-agent, and in CRPC with single-agent atezolizumab.
Exelixis is the study sponsor of COSMIC-021. Both Ipsen Pharma SAS (Ipsen) and Takeda Pharmaceutical Company Limited (Takeda) have opted in to participate in the trial and are contributing to the funding for this study under the terms of the companies’ respective collaboration agreements with Exelixis. Roche is providing atezolizumab for the trial.
About renal cell carcinoma (RCC)
There are over 400,000 new cases of kidney cancer diagnosed worldwide each year.16 Of these, RCC is the most common type of kidney cancer, accounting for approximately 90% of cases.17,18 It is twice as common in men, and male patients account for over two thirds of deaths.16 If detected in the early stages, the five-year survival rate is high, but for patients living with advanced or late-stage metastatic RCC the survival rate is much lower, around 12%, with no identified cure for this disease.19,20
About the CheckMate -9ER trial
CheckMate -9ER was an open-label, randomized, multi-national Phase III trial evaluating people living with previously untreated advanced or metastatic RCC. A total of 651 patients (23% favorable risk, 58% intermediate risk, 20% poor risk; 25% PD-L1 ≥1%) were randomized to Cabometyx plus Opdivo (n = 323) versus sunitinib (n = 328). The primary endpoint is progression-free survival (PFS). Secondary endpoints include overall survival and objective response rate. The primary efficacy analysis compared the doublet combination versus sunitinib in all randomized patients. The trial was sponsored by Bristol Myers Squibb and Ono Pharmaceutical Co and co-funded by Exelixis, Ipsen and Takeda Pharmaceutical Company Limited.
About Cabometyx (cabozantinib)
In the U.S., Cabometyx tablets are approved for the treatment of patients living with advanced RCC; for the treatment of patients living with hepatocellular carcinoma (HCC) who have been previously treated with sorafenib; and for patients living with advanced RCC as a first-line treatment in combination with nivolumab. Outside the U.S., Cabometyx is currently approved in 59 countries, including in the European Union, Great Britain, Norway, Iceland, Australia, New Zealand, Switzerland, South Korea, Canada, Brazil, Taiwan, Hong Kong, Singapore, Macau, Jordan, Lebanon, the Russian Federation, Ukraine, Turkey, United Arabic Emirates, Saudi Arabia, Serbia, Israel, Mexico, Chile, Peru, Panama, Guatemala, Dominican Republic, Ecuador, Thailand, Malaysia and Egypt for the treatment of advanced RCC in adults who have received prior VEGF-targeted therapy; in the European Union, Great Britain, Norway, Iceland, Canada, Australia, New Zealand, Brazil, Taiwan, Hong Kong, Singapore, Lebanon, Jordan, the Russian Federation, Ukraine, Turkey, the United Arab Emirates (U.A.E.)., Saudi Arabia, Israel, Mexico, Chile, Peru, Panama, Guatemala, the Dominican Republic, Ecuador, Thailand, Egypt and Malaysia for previously untreated intermediate- or poor-risk advanced RCC; and in the European Union, Great Britain Norway, Iceland, Canada, Australia, Switzerland, Saudi Arabia, Serbia, Israel, Taiwan, Hong Kong, South Korea, Singapore, Jordan, the Russian Federation, Ukraine, Turkey, Lebanon, the U.A.E., Peru, Panama, Guatemala, Chile, the Dominican Republic, Ecuador, Thailand, Brazil, New Zealand and Malaysia for HCC in adults who have previously been treated with sorafenib. Cabometyx is also approved in combination with nivolumab as first line treatment for people living with advanced RCC, in the European Union, Great Britain, Norway, Iceland, Switzerland, Taiwan, the Russian Federation.
Ipsen has exclusive rights for the commercialization of Cabometyx outside the U.S. and Japan. Cabometyx is marketed by Exelixis in the U.S. and by Takeda Pharmaceutical Company Limited in Japan. Cabometyx is a registered trademark of Exelixis.
Ipsen is a global, mid-sized biopharmaceutical company focused on transformative medicines in Oncology, Rare Disease and Neuroscience; it also has a well-established consumer healthcare business. With total sales of over €2.5bn in FY 2020, Ipsen sells more than 20 medicines in over 115 countries, with a direct commercial presence in more than 30 countries. The company’s research and development efforts are focused on its innovative and differentiated technological platforms located in the heart of leading biotechnological and life-science hubs: Paris-Saclay, France; Oxford, U.K.; Cambridge, U.S.; Shanghai, China. Ipsen has c.5,700 colleagues worldwide and is listed in Paris (Euronext: IPN) and in the U.S. through a Sponsored Level I American Depositary Receipt program (ADR: IPSEY). For more information, visit ipsen.com.
Ipsen’s Forward-Looking Statements
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- Capdevila et al., ESMO 2021. Cabozantinib (C) versus placebo (P) in patients (pts) with radioiodine-refractory (RAIR) differentiated thyroid cancer (DTC) who have progressed after prior VEGFR-targeted therapy: updated results from the phase 3 COSMIC-311 trial and prespecified subgroup analyses based on prior VEGFR-targeted therapy
- Agarwal et al., ESMO 2021. Cabozantinib (C) in combination with atezolizumab (A) in patients (pts) with metastatic castration-resistant prostate cancer (mCRPC): primary analysis of cohort 6 of the COSMIC-021 study
- Porta et al., ESMO 2021. First-line nivolumab + cabozantinib (NIVO+CABO) vs sunitinib (SUN) in patients (pts) with advanced renal cell carcinoma (aRCC) in subgroups based on prior nephrectomy in the CheckMate 9ER trial
- Porta et al., ESMO 2021. Matching-adjusted indirect comparison (MAIC) of health-related quality of life (HRQoL) of nivolumab plus cabozantinib (N+C) vs pembrolizumab plus axitinib (P+A) in previously untreated advanced renal cell carcinoma (aRCC)
- Brose et al., ASCO 2021. Cabozantinib versus placebo in patients with radioiodine-refractory differentiated thyroid cancer who have progressed after prior VEGFR-targeted therapy: results from the phase 3 COSMIC-311 trial.
- Brose et al., Cabozantinib for radioiodine-refractory differentiated thyroid cancer (COSMIC-311): a randomised, double-blind, placebo-controlled, phase 3 trial. Lancet Oncology. 2021; 22:8. DOI: https://doi.org/10.1016/S1470-2045(21)00332-6
- Agarwal et al., ASCO 2020. Cabozantinib in combination with atezolizumab in patients with metastatic castration-resistant prostate cancer: Results of cohort 6 of the COSMIC-021 study.
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- Fugazzola L. et al. 2019 European Thyroid Association Guidelines for the Treatment and Follow-Up of Advanced Radioiodine-Refractory Thyroid Cancer. Eur Thyroid J. 2019;8:227–245. doi: 10.1159/000502229.
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- Orlin, I et al. Renal cell carcinomas epidemiology in the era of widespread imaging. Journal of Clinical Oncology. 2019; 37:15. DOI: https://ascopubs.org/doi/10.1200/JCO.2019.37.15_suppl.e13083.
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