Nov 11, 2020 09:56 JST

Source: Eisai

LENVIMA Plus KEYTRUDA Demonstrated Statistically Significant Improvement in Progression-Free Survival, Overall Survival and Objective Response Rate Versus Sunitinib as First-Line Treatment for Patients with Advanced Renal Cell Carcinoma

- LENVIMA Plus Everolimus Also Showed Statistically Significant Improvement in PFS and ORR Endpoints Versus Sunitinib
- Results of Investigational Phase 3 CLEAR Trial (Study 307)/KEYNOTE-581 to be Presented at Upcoming Medical Meeting

TOKYO, Nov 11, 2020 - (JCN Newswire) - Eisai Co., Ltd. and Merck & Co., Inc., Kenilworth, N.J., U.S.A. (known as MSD outside the United States and Canada) today announced new investigational data demonstrating positive top-line results from the pivotal Phase 3 CLEAR trial (Study 307)/KEYNOTE-581 evaluating LENVIMA, the orally available multiple receptor tyrosine kinase inhibitor discovered by Eisai, plus KEYTRUDA, the anti-PD-1 therapy from Merck & Co., Inc., Kenilworth, N.J., U.S.A., as well as LENVIMA plus everolimus versus sunitinib for the first-line treatment of patients with advanced renal cell carcinoma (RCC).

LENVIMA plus KEYTRUDA met the trial's primary endpoint of Progression-Free Survival (PFS) and its key secondary endpoints of Overall Survival (OS) and Objective Response Rate (ORR), demonstrating a statistically significant and clinically meaningful improvement in PFS, OS and ORR versus sunitinib in the intention-to-treat (ITT) study population. LENVIMA plus everolimus also met the trial's primary endpoint of PFS and a key secondary endpoint of ORR, demonstrating a statistically significant and clinically meaningful improvement in PFS and ORR versus sunitinib in the ITT study population. The ITT population included patients across all Memorial Sloan Kettering Cancer Center (MSKCC) risk groups (favorable, intermediate and poor). The safety profiles of both LENVIMA plus KEYTRUDA and LENVIMA plus everolimus were consistent with previously reported studies. Eisai and Merck & Co., Inc., Kenilworth, N.J., U.S.A. will discuss these data with regulatory authorities worldwide, with the intent to submit marketing authorization applications based on these results, which will be presented at an upcoming medical meeting.

"The results for KEYTRUDA plus LENVIMA versus sunitinib, which showed a statistically significant improvement in progression-free survival, overall survival and objective response rate, build on the growing scientific evidence that supports the investigation of KEYTRUDA-based combinations for the first-line treatment of advanced renal cell carcinoma," said Dr. Gregory Lubiniecki, Associate Vice President, Oncology Clinical Research, Merck Research Laboratories. "Merck and Eisai are committed to working together to continue to explore the potential of the KEYTRUDA plus LENVIMA combination, particularly in areas of great unmet need such as renal cell carcinoma."

"The results from CLEAR (Study 307)/KEYNOTE-581 support the potential use of KEYTRUDA plus LENVIMA for the first-line treatment of advanced RCC. These data also support the potential first-line use of LENVIMA plus everolimus, which is already approved in advanced RCC following prior antiangiogenic therapy," said Dr. Takashi Owa, Vice President, Chief Medicine Creation and Chief Discovery Officer, Oncology Business Group at Eisai. "These findings energize our efforts as we continue to advance our understanding and address the unmet needs of patients with difficult-to-treat cancers."

Eisai and Merck & Co., Inc., Kenilworth, N.J., U.S.A. are continuing to study the LENVIMA plus KEYTRUDA combination through the LEAP (LEnvatinib And Pembrolizumab) clinical program across 19 trials in 13 different tumor types (endometrial carcinoma, hepatocellular carcinoma, melanoma, non-small cell lung cancer, RCC, squamous cell carcinoma of the head and neck, urothelial cancer, biliary tract cancer, colorectal cancer, gastric cancer, glioblastoma, ovarian cancer and triple-negative breast cancer).

About CLEAR (Study 307)/KEYNOTE-581

CLEAR (Study 307)/KEYNOTE-581 is a multi-center, randomized, open-label, Phase 3 trial (ClinicalTrials.gov, NCT02811861(New Window)) evaluating LENVIMA in combination with KEYTRUDA or in combination with everolimus versus sunitinib alone for the first-line treatment of patients with advanced RCC. The study enrolled approximately 1,050 patients who were randomized to one of three treatment arms to receive LENVIMA (18 mg orally once daily) in combination with everolimus (5 mg orally once daily) [arm A]; or LENVIMA (20 mg orally once daily) in combination with KEYTRUDA (200 mg intravenously every three weeks) [arm B]; or sunitinib (50 mg orally once daily for four weeks on treatment, followed by two weeks off treatment) [arm C]. The primary endpoint is comparison of PFS between arm A versus arm C, and arm B versus arm C, by independent review per RECIST v1.1 criteria. Key secondary endpoints include OS, ORR and safety.

For more information, visit https://www.eisai.com/news/2020/news202073.html.

Contact:
Eisai Co., Ltd.
Public Relations:
+81-(0)3-3817-5120

Merck & Co., Inc., Kenilworth, N.J., U.S.A. 
Media Relations
Pamela Eisele: (267) 305-3558
Rebecca Newberry: (484) 678-2952
Source: Eisai
Sectors: BioTech

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