Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, “Eisai”) announced today that presentations on a series of abstracts highlighting updates on its in-house discovered lenvatinib mesylate (product name: LENVIMA^?, the orally available kinase inhibitor, “l(fā)envatinib”) will be given at the 2022 American Society of Clinical Oncology (ASCO) Gastrointestinal Cancers Symposium (#GI22), taking place in-person in San Francisco, California, and virtually, from January 20 to 22, 2022.

At this symposium, the results of a primary analysis of a prospective?clinical?study evaluating transcatheter arterial chemoembolization (TACE) therapy in combination strategy with lenvatinib (TACTICS-L) in patients with unresectable hepatocellular carcinoma (uHCC) in Japan (Abstract No: 417), as well as research updates on the Phase IV Study (STELLAR) to evaluate safety and tolerability of lenvatinib in patients with advanced/unresectable hepatocellular carcinoma (Abstract No: TPS485) and results from a clinical study to evaluate the efficacy of lenvatinib for conversion surgery in patients with uHCC (investigator-initiated study in Japan, Abstract No: 458), will be presented.

In addition, trial-in-progress (TiP) posters from the clinical program evaluating the combination therapy of lenvatinib plus pembrolizumab?(product name: KEYTRUDA^?), the anti-PD-1 therapy from Merck & Co., Inc., Kenilworth, N.J., U.S.A. (known as MSD outside the United States and Canada), include the Phase III LEAP-014 Study of the combination plus chemotherapy in patients with esophageal carcinoma squamous cell carcinoma (Abstract No: TPS367), Phase III LEAP-015 Study of the combination plus chemotherapy in patients with advanced/metastatic gastroesophageal adenocarcinoma (Abstract No: TPS369), Phase III Study LEAP-012 of the combination plus TACE in patients with intermediate-stage hepatocellular carcinoma not amenable to curative treatment (Abstract No: TPS494), and Phase II Study of the combination plus belzutifan in patients with advanced solid tumors (Abstract No: TPS669).

In March 2018, Eisai and Merck & Co., Inc., Kenilworth, N.J., U.S.A., through an affiliate, entered into a strategic collaboration for the worldwide co-development and co-commercialization of lenvatinib.

Eisai positions oncology as a key therapeutic area and is aiming to discover revolutionary new medicines with the potential to cure cancer. Eisai will continue to create innovation in the development of new drugs based on cutting-edge cancer research, as it seeks to contribute further to addressing the diverse needs of, and increasing the benefits provided to, patients with cancer, their families, and healthcare providers.

This release discusses investigational compounds and investigational uses for FDA-approved products. It is not intended to convey conclusions about efficacy and safety. There is no guarantee that any investigational compounds or investigational uses of FDA-approved products will successfully complete clinical development or gain FDA approval.

 

The full list of Eisai poster presentations is below.

* The presentation with TPS (Trial in Progress Submission) attached to the abstract number indicates that the study is in the intermediate stage, and the presentation does not report the final study results.

 

Media Inquiries:

Public Relations Department,

Eisai Co., Ltd.

+81-(0)3-3817-5120

 

[Notes to editors]

1．About the Merck & Co., Inc., Kenilworth, N.J., U.S.A. and Eisai Strategic Collaboration

In March 2018, Eisai and Merck & Co., Inc., Kenilworth, N.J., U.S.A., known as MSD outside the United States and Canada, through an affiliate, entered into a strategic collaboration for the worldwide co-development and co-commercialization of LENVIMA. Under the agreement, the companies will jointly develop, manufacture and commercialize LENVIMA, both as monotherapy and in combination with KEYTRUDA, the anti-PD-1 therapy from Merck & Co., Inc., Kenilworth, N.J., U.S.A.

In addition to ongoing clinical studies evaluating the LENVIMA plus KEYTRUDA combination across several different tumor types, the companies have jointly initiated new clinical studies through the LEAP (LEnvatinib And Pembrolizumab) clinical program and are evaluating the combination in more than 10 different tumor types across more than 20 clinical trials.

 

2. Eisai’s Focus on Cancer

Eisai focuses on the development of anticancer drugs, targeting the tumor microenvironment (with experience and knowledge from existing in-house discovered compounds) and the driver gene mutation and aberrant splicing (leveraging RNA Splicing Platform) as areas (Ricchi) where real patient needs are still unmet, and where Eisai can aim to become a frontrunner in oncology. Eisai aspires to discover innovative new drugs with new targets and mechanisms of action from these Ricchi, with the aim of contributing to the cure of cancers.

KEYTRUDA^? is a registered trademark of Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Kenilworth, N.J., U.S.A.

First Approval in Japan for the LENVIMA Plus KEYTRUDA Combination

 

TOKYO and KENILWORTH, N.J., December 24, 2021 – Eisai (Headquarters: Tokyo, CEO: Haruo Naito) and Merck & Co., Inc., Kenilworth, N.J., U.S.A. (known as MSD outside the United States and Canada) today announced that the Japanese Ministry of Health, Labour and Welfare (MHLW) has approved the combination of 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., for the treatment of patients with unresectable, advanced or recurrent endometrial carcinoma that progressed after cancer chemotherapy. This approval marks the first time the combination of LENVIMA plus KEYTRUDA has been approved in Japan. LENVIMA plus KEYTRUDA is now approved in Japan, the U.S. and Europe for certain types of advanced endometrial carcinoma.

“Rates of endometrial carcinoma have been steadily increasing in Japan each year¹, and there are limited options for patients who are diagnosed at an advanced stage or find their disease has returned,” said Dr. Gregory Lubiniecki, Vice President, Clinical Research, Merck & Co., Inc., Kenilworth, N.J., U.S.A. Research Laboratories. “With today’s approval, patients in Japan with unresectable, advanced or recurrent endometrial carcinoma now have the option of the first immunotherapy and tyrosine kinase inhibitor combination that has significantly improved overall survival and progression-free survival compared to chemotherapy.”

“This is the first approval of the LENVIMA plus KEYTRUDA combination in Japan,” said Terushige Iike, President of Eisai Japan, Senior Vice President, Eisai. “We thank the patients, families and healthcare providers who made this approval possible. By delivering this combination therapy, we are proud to provide patients with advanced or recurrent endometrial carcinoma an additional treatment option.”

The approval is based on results from the pivotal Phase 3 Study 309/KEYNOTE-775 trial, in which LENVIMA plus KEYTRUDA demonstrated statistically significant improvements in overall survival (OS), reducing the risk of death by 38% (HR=0.62 [95% CI, 0.51-0.75]; p<0.0001), and progression-free survival (PFS), reducing the risk of disease progression or death by 44% (HR=0.56 [95% CI, 0.47-0.66]; p<0.0001), versus chemotherapy (investigator’s choice of doxorubicin or paclitaxel). The median OS was 18.3 months (95% CI, 15.2-20.5) for LENVIMA plus KEYTRUDA versus 11.4 months (95% CI, 10.5-12.9) for chemotherapy. The median PFS was 7.2 months (95% CI, 5.7-7.6) for LENVIMA plus KEYTRUDA versus 3.8 months (95% CI, 3.6-4.2) for chemotherapy.

The Japanese package inserts for KEYTRUDA and LENVIMA note that in the Study 309/KEYNOTE-775 trial, adverse reactions were observed in 395 patients (97.3%) out of the safety analysis set of 406 patients (including 51 out of 52 Japanese patients) receiving LENVIMA　 plus KEYTRUDA. The most common adverse reactions were hypertension in 249 patients (61.3%), hypothyroidism in 222 patients (54.7%), diarrhea in 171 patients (42.1%), nausea in 158 patients (38.9%), decreased appetite in 151 patients (37.2%), fatigue in 113 patients (27.8%), proteinuria in 105 patients (25.9%), vomiting in 98 patients (24.1%), weight decreased in 91 patients (22.4%), arthralgia in 87 patients (21.4%) and palmar-plantar erythrodysesthesia syndrome in 84 patients (20.7%).

Endometrial carcinoma begins in the inner lining of the uterus, which is known as the endometrium, and accounts for more than 90% of uterine cancers². In Japan, it is estimated there were more than 17,000 new cases of uterine cancer and more than 3,000 deaths in 2020 alone³. LENVIMA and KEYTRUDA have each received orphan drug designation in Japan for endometrial carcinoma.

In addition to advanced endometrial carcinoma, Eisai and Merck & Co., Inc., Kenilworth, N.J., U.S.A. continue to study the LENVIMA plus KEYTRUDA combination across several types of cancer with more than 20 clinical trials.

 

Eisai Co., Ltd.

 

Merck & Co., Inc., Kenilworth, N.J., U.S.A.

 

About Study 309/KEYNOTE-775 Trial

The approval was based on data from Study 309/KEYNOTE-775 (ClinicalTrials.gov, NCT03517449), a Phase 3 multicenter, open-label, randomized, active-controlled study conducted in 827 patients (including 104 Japanese patients) with advanced endometrial carcinoma who had been previously treated with at least one prior platinum-based chemotherapy regimen in any setting, including in the neoadjuvant and adjuvant settings. The primary efficacy outcome measures were OS, and PFS as assessed by blinded independent central review (BICR) according to RECIST v1.1.

Patients were randomized 1:1 to receive LENVIMA (20 mg orally once daily) plus KEYTRUDA (200 mg intravenously every three weeks) or investigator’s choice, consisting of either doxorubicin (60 mg/m²?every three weeks)?or paclitaxel (80 mg/m² given weekly, three weeks on/one week off). Treatment with LENVIMA plus KEYTRUDA continued until RECIST v1.1-defined progression of disease as verified by BICR, unacceptable toxicity, or for KEYTRUDA, a maximum of 24 months. Administration of LENVIMA plus KEYTRUDA was permitted beyond RECIST-defined disease progression if the treating investigator considered the patient to be deriving clinical benefit and the treatment was tolerated.

?

About LENVIMA^? (lenvatinib) Capsules

LENVIMA, discovered and developed by Eisai, is an orally available kinase inhibitor that inhibits the kinase activities of vascular endothelial growth factor (VEGF) receptors VEGFR1 (FLT1), VEGFR2 (KDR), and VEGFR3 (FLT4). LENVIMA inhibits other kinases that have been implicated in pathogenic angiogenesis, tumor growth, and cancer progression in addition to their normal cellular functions, including fibroblast growth factor (FGF) receptors FGFR1-4, the platelet derived growth factor receptor alpha (PDGFRα), KIT, and RET. In syngeneic mouse tumor models, LENVIMA decreased tumor-associated macrophages, increased activated cytotoxic T cells, and demonstrated greater antitumor activity in combination with an anti-PD-1 monoclonal antibody compared to either treatment alone.

Currently, LENVIMA has been approved for monotherapy as a treatment for thyroid cancer in over 75 countries including Japan, in Europe, China and in Asia, and in the United States for locally recurrent or metastatic, progressive, radioiodine-refractory differentiated thyroid cancer. In addition, LENVIMA has been approved for monotherapy as a treatment for unresectable hepatocellular carcinoma in over 70 countries including Japan, in Europe, China and in Asia, and in the United States for first-line unresectable hepatocellular carcinoma. LENVIMA has been approved for monotherapy as a treatment for unresectable thymic carcinoma in Japan. It is also approved in combination with everolimus as a treatment for renal cell carcinoma following prior antiangiogenic therapy in over 60 countries, including in Europe and Asia, and in the United States the treatment of adult patients with advanced renal cell carcinoma following one prior anti-angiogenic therapy. In Europe, the agent was launched under the brand name Kisplyx^? for renal cell carcinoma. LENVIMA has been approved in combination with KEYTRUDA (generic name: pembrolizumab), for the first-line treatment of adult patients with advanced renal cell carcinoma (RCC) in United States and in Europe. LENVIMA has been approved in combination with KEYTRUDA as a treatment for advanced endometrial carcinoma that is not microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) who have disease progression following prior systemic therapy in any setting and are not candidates for curative surgery or radiation in the United States, and has been approved for the similar indication (including conditional approval) in over 10 countries such as Canada and Australia. In some regions, continued approval for this indication is contingent upon verification and description of clinical benefit in the confirmatory trials. ?In Europe, it has been approved in combination with KEYTRUDA (generic name: pembrolizumab) as the treatment of advanced or recurrent endometrial carcinoma in adults who have disease progression on or following prior treatment with a platinum containing therapy in any setting and who are not candidates for curative surgery or radiation. In Japan, it is approved in combination with KEYTRUDA (generic name: pembrolizumab) as the treatment of patients with unresectable advanced or recurrent endometrial carcinoma that progressed after cancer chemotherapy.

?

About KEYTRUDA^??(pembrolizumab) Injection, 100mg

KEYTRUDA is an anti-programmed death receptor-1 (PD-1) therapy that works by increasing the ability of the body’s immune system to help detect and fight tumor cells. KEYTRUDA is a humanized monoclonal antibody that blocks the interaction between PD-1 and its ligands, PD-L1 and PD-L2, thereby activating T lymphocytes which may affect both tumor cells and healthy cells.

Merck & Co., Inc., Kenilworth, N.J., U.S.A. has the industry’s largest immuno-oncology clinical research program. There are currently more than 1,600 trials studying KEYTRUDA across a wide variety of cancers and treatment settings. The KEYTRUDA clinical program seeks to understand the role of KEYTRUDA across cancers and the factors that may predict a patient’s likelihood of benefitting from treatment with KEYTRUDA, including exploring several different biomarkers.

?

About the Eisai and Merck & Co., Inc., Kenilworth, N.J., U.S.A. Strategic Collaboration

In March 2018, Eisai and Merck & Co., Inc., Kenilworth, N.J., U.S.A., known as MSD outside the United States and Canada, through an affiliate, entered into a strategic collaboration for the worldwide co-development and co-commercialization of LENVIMA. Under the agreement, the companies will jointly develop, manufacture and commercialize LENVIMA, both as monotherapy and in combination with KEYTRUDA, the anti-PD-1 therapy from Merck & Co., Inc., Kenilworth, N.J., U.S.A.

In addition to ongoing clinical studies evaluating the LENVIMA plus KEYTRUDA combination across several different tumor types, the companies have jointly initiated new clinical studies through the LEAP (LEnvatinib And Pembrolizumab) clinical program and are evaluating the combination in more than 10 different tumor types across more than 20 clinical trials.

?

Eisai’s Focus on Cancer

Eisai focuses on the development of anticancer drugs, targeting the tumor microenvironment (with experience and knowledge from existing in-house discovered compounds) and the driver gene mutation and aberrant splicing (leveraging RNA Splicing Platform) as areas (Ricchi) where real patient needs are still unmet, and where Eisai can aim to become a frontrunner in oncology. Eisai aspires to discover innovative new drugs with new targets and mechanisms of action from these Ricchi, with the aim of contributing to the cure of cancers.

 

About Eisai

Eisai is a leading global research and development-based pharmaceutical company headquartered in Japan, with approximately 10,000 employees worldwide. We define our corporate mission as “giving first thought to patients and their families and to increasing the benefits health care provides,” which we call our human health care (hhc) philosophy. We strive to realize our hhc philosophy by delivering innovative products in therapeutic areas with high unmet medical needs, including Oncology and Neurology. In the spirit of hhc, we take that commitment even further by applying our scientific expertise, clinical capabilities and patient insights to discover and develop innovative solutions that help address society’s toughest unmet needs, including neglected tropical diseases and the Sustainable Development Goals.

For more information about Eisai, please visit www.eisai.com (for global headquarters: Eisai. Co., Ltd.), us.eisai.com (for U.S. headquarters: Eisai, Inc.) or www.eisai.eu (for Europe, Middle East, Africa, Russia, Australia and New Zealand headquarters: Eisai Europe Ltd.), and connect with us on Twitter (U.S. and global) and LinkedIn (for U.S. and EMEA).

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Merck & Co., Inc., Kenilworth, N.J., U.S.A.’s Focus on Cancer

Our goal is to translate breakthrough science into innovative oncology medicines to help people with cancer worldwide. At Merck & Co., Inc., Kenilworth, N.J., U.S.A., the potential to bring new hope to people with cancer drives our purpose and supporting accessibility to our cancer medicines is our commitment. As part of our focus on cancer, Merck & Co., Inc., Kenilworth, N.J., U.S.A. is committed to exploring the potential of immuno-oncology with one of the largest development programs in the industry across more than 30 tumor types. We also continue to strengthen our portfolio through strategic acquisitions and are prioritizing the development of several promising oncology candidates with the potential to improve the treatment of advanced cancers. For more information about our oncology clinical trials, visit www.merck.com/clinicaltrials.

 

About Merck & Co., Inc., Kenilworth, N.J., U.S.A. 　

For over 130 years, Merck & Co., Inc., Kenilworth, N.J., U.S.A., known as MSD outside of the United States and Canada, has been inventing for life, bringing forward medicines and vaccines for many of the world’s most challenging diseases in pursuit of our mission to save and improve lives. We demonstrate our commitment to patients and population health by increasing access to health care through far-reaching policies, programs and partnerships. Today, Merck & Co., Inc., Kenilworth, N.J., U.S.A. continues to be at the forefront of research to prevent and treat diseases that threaten people and animals – including cancer, infectious diseases such as HIV and Ebola, and emerging animal diseases – as we aspire to be the premier research-intensive　biopharmaceutical company in the world. For more information, visit www.merck.com and connect with us on Twitter, Facebook, Instagram, YouTube and LinkedIn.

 

Forward-Looking Statement of Merck & Co., Inc., Kenilworth, N.J., USA

This news release of Merck & Co., Inc., Kenilworth, N.J., USA (the “company”) includes “forward-looking statements” within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. These statements are based upon the current beliefs and expectations of the company’s management and are subject to significant risks and uncertainties. There can be no guarantees with respect to pipeline products that the products will receive the necessary regulatory approvals or that they will prove to be commercially successful. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements.

Risks and uncertainties include but are not limited to, general industry conditions and competition; general economic factors, including interest rate and currency exchange rate fluctuations; the impact of the global outbreak of novel coronavirus disease (COVID-19); the impact of pharmaceutical industry regulation and health care legislation in the United States and internationally; global trends toward health care cost containment; technological advances, new products and patents attained by competitors; challenges inherent in new product development, including obtaining regulatory approval; the company’s ability to accurately predict future market conditions; manufacturing difficulties or delays; financial instability of international economies and sovereign risk; dependence on the effectiveness of the company’s patents and other protections for innovative products; and the exposure to litigation, including patent litigation, and/or regulatory actions.

The company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. Additional factors that could cause results to differ materially from those described in the forward-looking statements can be found in the company’s 2020 Annual Report on Form 10-K and the company’s other filings with the Securities and Exchange Commission (SEC) available at the SEC’s Internet site (www.sec.gov).

 

¹ Yamagami W et al. Clinical statistics of gynecologic cancers in Japan. J Gynecol Oncol. 2017 Mar;28(2):e32.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5323288/pdf/jgo-28-e32.pdf .

² American Cancer Society, “About Endometrial Cancer.”

https://www.cancer.org/content/dam/CRC/PDF/Public/8609.00.pdf .

³ International Agency for Research on Cancer, World Health Organization. “Japan Fact Sheet.” Cancer Today, 2020.

https://gco.iarc.fr/today/data/factsheets/populations/392-japan-fact-sheets.pdf .

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, “Eisai”) today announced it has entered into an agreement with Gilead Sciences, Inc. (Headquarters: Foster City, California, “Gilead”) for the commercialization and distribution of filgotinib (generic name, product name: Jyseleca^? ), an oral, JAK1 preferential inhibitor for indications of rheumatoid arthritis (RA), ulcerative colitis, and Crohn’s disease in Asia (South Korea, Chinese Taiwan, HKSA and Singapore). In December 2019, Eisai signed a partnership agreement with Gilead Sciences K.K. (Headquarters: Tokyo), a Japanese subsidiary of Gilead, for the distribution and co-promotion of filgotinib in Japan.

Under the terms of the new agreement, Eisai will obtain an exclusive marketing right for filgotinib in South Korea, Chinese Taiwan, HKSA and Singapore from Gilead. Gilead has received approval for the treatment of RA in Chinese Taiwan and has applied for approval of filgotinib for the treatment of RA in South Korea. Following approvals, Eisai will take over the manufacturing and marketing licenses for filgotinib from Gilead in South Korea and Chinese Taiwan. In HKSA and Singapore, Eisai will apply for approval for filgotinib. With this agreement, Eisai will pay Gilead a contractual up-front payment, as well as regulatory milestones and sales milestones.

Filgotinib is a once-daily, oral, JAK1 preferential inhibitor. In Japan, filgotinib has been approved for the treatment of rheumatoid arthritis (including prevention of structural joint damage) in patients who have had an inadequate response to conventional therapies. In April 2021, Gilead Sciences K.K. applied for an additional indication of filgotinib as a treatment for patients with moderate to severe active ulcerative colitis.

Eisai will leverage its strong business foundation throughout Asia, provide new treatment options for patients with rheumatoid arthritis and inflammatory bowel disease, and contribute further to addressing the diverse needs of, and increasing the benefits provided to, patients their families, and healthcare providers.

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, “Eisai”) announced today that the company will conduct a total of 42 poster presentations, including the latest data on its in-house discovered and developed anti-epileptic agent (AED) perampanel (product name: Fycompa^?) and in-house discovered and developed E2730, an investigational novel small compound for AED and the treatment for neurological diseases, at the 75th American Epilepsy Society Annual Meeting (AES2021), to be held in Chicago, Illinois and virtually from December 3 to 7, 2021.

Major presentations regarding perampanel include poster presentations about the analysis results from the phase III clinical trial (FREEDOM/Study 342), which evaluated long-term efficacy and safety of the perampanel monotherapy in the open-label extension (52 weeks) for epilepsy patients with focal-onset seizures (FOS) from 12 to 74 years of age without prior treatment history (Poster number: 1.283). Additionally, an overview of phase III and other clinical studies (Poster number: 2.218) and a real-world pooled analysis of perampanel for elderly patients (Poster number: 1.215), will be presented. For E2730, a poster presentation will be given on the non-clinical study results (Poster number 2.197).

Perampanel is a first-in-class AED discovered by Eisai’s Tsukuba Research Laboratories. The agent is a highly selective, noncompetitive AMPA receptor antagonist that is postulated to reduce neuronal hyper-excitation associated with seizures by targeting glutamate activity at AMPA receptors on postsynaptic membranes. The agent is currently approved for partial onset seizures in over 70 countries including Japan, the United States, China and other countries in Europe and in Asia. The agent is currently approved as an adjunctive therapy for primary generalized tonic-clonic seizures in over 70 countries including Japan, the United States, and other countries in Europe and in Asia.

E2730 is a novel selective uncompetitive GAT-1 (GABA transporter-1) inhibitor with a novel mechanism of action that selectively regulates activated synaptic functions, which was discovered by Eisai’s Tsukuba Research Laboratories. Clinical study of E2730 for epilepsy is underway.

Eisai considers neurology, including epilepsy, a therapeutic area of focus. Eisai pursues its mission to provide “seizure freedom” to a greater number of patients with epilepsy. Eisai remains committed further to addressing the diverse needs of, and increasing the benefits provided to, patients with epilepsy and their families.

 

■ Main poster presentations

 

1.?About perampanel (product name: Fycompa)

Perampanel is a first-in-class anti-epileptic agent (AED) discovered and developed by Eisai. With epileptic seizures being mediated by the neurotransmitter glutamate, the agent is a highly selective, noncompetitive AMPA receptor antagonist that reduces neuronal hyperexcitation associated with seizures by targeting glutamate activity at AMPA receptors on postsynaptic membranes. Perampanel is available in drug form to be taken once daily orally at bedtime. A tablet and fine granule formulation have been approved in Japan. An oral suspension formulation and tablet have been approved in the United States and Europe.

Perampanel is currently approved in more than 70 countries and territories, including Japan, the United States, China, and other countries in Europe and in Asia as an adjunctive treatment for partial-onset seizures (with or without secondarily generalized seizures) in patients with epilepsy 12 years of age and older. In Japan, the United States and China, perampanel is approved for monotherapy and adjunctive use in the treatment of partial-onset seizures (with or without secondarily generalized seizures) in patients with epilepsy 4 years of age and older. In Europe the approved age range has been expanded to 4 years and above.

In addition, perampanel has been approved in more than 70 countries, including the United States, Japan, in Europe and in Asia for treatment as an adjunctive therapy for primary generalized tonic-clonic seizures in patients with epilepsy 12 years of age and older. In Europe the approved age range has been expanded to 7 years and above.

To date, perampanel has been used to treat more than 410,000 patients worldwide across all indications.

Eisai is conducting a global Phase III clinical study (Study 338) for the agent in patients with seizures associated with Lennox-Gastaut syndrome. In addition, Eisai is conducting development of an injection formulation.

 

2.?About E2730

E2730 is a novel selective uncompetitive GAT-1 (GABA transporter-1) inhibitor with a novel mechanism of action that selectively regulates activated synaptic functions, which was discovered by Eisai’s Tsukuba Research Laboratories. Clinical study for epilepsy is underway.

 

3.?About Epilepsy

Epilepsy is broadly categorized by seizure type, with partial-onset seizures accounting for approximately 60% of epilepsy cases and generalized seizures accounting for approximately 40%. In a partial-onset seizure, an abnormal electrical disturbance occurs in a limited area of the brain, and may subsequently spread throughout the brain, becoming a generalized seizure (known as a secondarily generalized seizure). In a generalized seizure, abnormal electrical disturbances occur throughout the brain, and can be followed by a loss of consciousness or physical symptoms manifested throughout the whole body.

Epilepsy affects approximately 3.4 million people in the United States, 1 million people in Japan, 6 million people in Europe, 9 million people in China, and approximately 60 million people worldwide. As approximately 30% of patients with epilepsy are unable to control their seizures with currently available AEDs,^* this is a disease with significant unmet medical needs. Although onset occurs at any age, onset is most common in people aged 18 and younger and the elderly. As causes and clinical symptoms of pediatric epilepsy are not uniform, and prognoses can range from very positive cases to obstinate cases, special consideration for each patient is required of treatments.

^*“The Epilepsies and Seizures: Hope Through Research. What are the epilepsies?” National Institute of Neurological Disorders and Stroke, accessed May 24, 2016, http://www.ninds.nih.gov/disorders/epilepsy/detail_epilepsy.htm#230253109

Approval Based on Results From CLEAR/KEYNOTE-581 Trial Demonstrating LENVIMA Plus KEYTRUDA Significantly Reduced the Risk of Disease Progression or Death by 61%, With a Median Progression-Free Survival of Nearly Two Years Versus Nine Months for Sunitinib

 

TOKYO and KENILWORTH, N.J., November. 29, 2021 – Eisai (Headquarters: Tokyo, CEO: Haruo Naito) and Merck & Co., Inc., Kenilworth, N.J., U.S.A. (known as MSD outside the United States and Canada) today announced that the European Commission has approved the combination of LENVIMA (KISPLYX^? in the European Union [EU] for the treatment of advanced renal cell carcinoma [RCC]), 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., for the first-line treatment of adult patients with advanced RCC.

The approval for advanced RCC is based on results from the pivotal Phase 3 CLEAR (Study 307)/KEYNOTE-581 trial, in which LENVIMA plus KEYTRUDA demonstrated statistically significant improvements versus sunitinib in the efficacy outcome measures of progression-free survival (PFS), reducing the risk of disease progression or death by 61% (HR=0.39 [95% CI, 0.32-0.49]; p<0.0001) with a median PFS of 23.9 months versus 9.2 months for sunitinib, and overall survival (OS), reducing the risk of death by 34% (HR=0.66 [95% CI, 0.49-0.88]; p=0.0049) versus sunitinib. Median OS was not reached at the time of analysis in either study arm. The objective response rate (ORR) was 71% (95% CI: 66-76) for patients treated with LENVIMA plus KEYTRUDA (n=355) versus 36% (95% CI: 31-41) for patients treated with sunitinib (n=357; p<0.0001). Patients treated with LENVIMA plus KEYTRUDA achieved a complete response (CR) rate of 16% and partial response (PR) rate of 55% versus a CR rate of 4% and a PR rate of 32% for patients treated with sunitinib.

“A key focus of our collaboration with Eisai is to advance our clinical development program to evaluate the potential of KEYTRUDA plus LENVIMA to improve responses across different types of cancer, including renal cell carcinoma,” said Dr. Gregory Lubiniecki, Vice President, Clinical Research, Merck & Co., Inc., Kenilworth, N.J., U.S.A. Research Laboratories. “Today’s approval of KEYTRUDA plus LENVIMA brings a new treatment option to patients with advanced renal cell carcinoma in Europe, and further validates our efforts to research this promising combination of an immunotherapy and tyrosine kinase inhibitor for some of the most difficult-to-treat cancers.”

“Renal cell carcinoma is the most common type of kidney cancer in both men and women, marking the significance of the European approval for the LENVIMA plus KEYTRUDA combination,” said Corina Dutcus, M.D., Vice President, Clinical Research, Oncology Business Group at Eisai Inc. “We remain committed to continuing to explore this combination therapy with the goal of improving care for people living with cancer. The participation of many patients, families and healthcare providers made this approval possible, for which we are very grateful.”

In the CLEAR/KEYNOTE-581 trial, the most common adverse reactions (≥30%) for LENVIMA plus KEYTRUDA* were diarrhoea (61.8%), hypertension (51.5%) fatigue (47.1%), hypothyroidism (45.1%), decreased appetite (42.1%), nausea (39.6%), stomatitis (36.6%), proteinuria (33.0%), dysphonia (32.8%), and arthralgia (32.4%).

This approval allows marketing of LENVIMA plus KEYTRUDA in all 27 EU member states plus Iceland, Liechtenstein, Norway and Northern Ireland. LENVIMA plus KEYTRUDA is now approved by the European Commission for two different types of cancer: for the first-line treatment of adult patients with advanced renal cell carcinoma and for advanced or recurrent endometrial carcinoma in adults who have disease progression on or following prior treatment with a platinum-containing therapy in any setting and who are not candidates for curative surgery or radiation.

*According to the information listed in the SmPC (Summary of Product Characteristics)

 

About CLEAR/KEYNOTE-581 Trial

The approval was based on data from the CLEAR(Study 307)/KEYNOTE-581 trial (ClinicalTrials.gov, NCT02811861), a Phase 3, multicenter, open-label, randomized trial conducted in 1,069 patients with advanced RCC with clear cell component including other histological features such as sarcomatoid and papillary in the first-line setting.

Patients were enrolled regardless of PD-L1 tumor expression status. The study excluded patients with active autoimmune disease or a medical condition that required immunosuppression. Randomization was stratified by geographic region (North America and Western Europe vs. “Rest of the World”) and Memorial Sloan Kettering Cancer Center (MSKCC) prognostic groups (favorable vs. intermediate vs. poor). The primary efficacy outcome measure was PFS based on Blinded Independent Central Review (BICR) using RECIST 1.1, and PFS results were consistent across pre-specified subgroups, MSKCC prognostic groups and PD-L1 tumor expression status. Key secondary efficacy outcome measures were OS and ORR.

Patients were randomized 1:1:1 to receive LENVIMA (20 mg orally once daily) plus KEYTRUDA (200 mg intravenously every three weeks for up to 24 months), or LENVIMA (18 mg orally once daily) plus everolimus (5 mg orally once daily), or sunitinib (50 mg orally once daily for four weeks on treatment, followed by two weeks off treatment). Treatment continued until unacceptable toxicity or disease progression as determined by investigator and confirmed by BICR using RECIST 1.1. Administration of LENVIMA plus KEYTRUDA was permitted beyond RECIST-defined disease progression if the patient was clinically stable and considered by the investigator to be deriving clinical benefit. KEYTRUDA was continued for a maximum of 24 months; however, treatment with LENVIMA could be continued beyond 24 months. Assessment of tumor status was performed at baseline and then every eight weeks.

 

About Renal Cell Carcinoma (RCC)^1,2,3,4,5,6

Worldwide, it is estimated there were more than 431,000 new cases of kidney cancer diagnosed and more than 179,000 deaths from the disease in 2020. In Japan, there were more than 25,000 new cases and 8,000 deaths in 2020. In Europe, it is estimated there were more than 138,000 new cases of kidney cancer diagnosed and more than 54,000 deaths from the disease in 2020. ^?Renal cell carcinoma is by far the most common type of kidney cancer; about nine out of 10 kidney cancer diagnoses are RCC. Renal cell carcinoma is about twice as common in men as in women. Most cases of RCC are discovered incidentally during imaging tests for other abdominal diseases. Approximately 30% of patients with RCC will have metastatic disease at diagnosis. Survival is highly dependent on the stage at diagnosis, and the five-year survival rate is 13% for patients diagnosed with metastatic disease.

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About LENVIMA^? (lenvatinib); available as 10mg and 4mg capsules

LENVIMA, discovered and developed by Eisai, is a kinase inhibitor that inhibits the kinase activities of vascular endothelial growth factor (VEGF) receptors VEGFR1 (FLT1), VEGFR2 (KDR), and VEGFR3 (FLT4). LENVIMA inhibits other kinases that have been implicated in pathogenic angiogenesis, tumor growth, and cancer progression in addition to their normal cellular functions, including fibroblast growth factor (FGF) receptors FGFR1-4, the platelet derived growth factor receptor alpha (PDGFRα), KIT, and RET. In syngeneic mouse tumor models, lenvatinib decreased tumor-associated macrophages, increased activated cytotoxic T cells, and demonstrated greater antitumor activity in combination with an anti-PD-1 monoclonal antibody compared to either treatment alone.

Currently, LENVIMA has been approved for monotherapy as a treatment for thyroid cancer in over 75 countries including Japan, in Europe, China and in Asia, and in the United States for locally recurrent or metastatic, progressive, radioiodine-refractory differentiated thyroid cancer. In addition, LENVIMA has been approved for monotherapy as a treatment for unresectable hepatocellular carcinoma in over 70 countries including Japan, in Europe, China and in Asia, and in the United States for first-line unresectable hepatocellular carcinoma. LENVIMA has been approved for monotherapy as a treatment for unresectable thymic carcinoma in Japan. It is also approved in combination with everolimus as a treatment for renal cell carcinoma following prior antiangiogenic therapy in over 60 countries, including in Europe and Asia, and in the United States the treatment of adult patients with advanced renal cell carcinoma following one prior anti-angiogenic therapy. In Europe, the agent was launched under the brand name Kisplyx^? for renal cell carcinoma. LENVIMA has been approved in combination with KEYTRUDA (generic name: pembrolizumab), for the first-line treatment of adult patients with advanced renal cell carcinoma (RCC) in United States and in Europe. LENVIMA has been approved in combination with KEYTRUDA (generic name: pembrolizumab) as a treatment for advanced endometrial carcinoma that is not microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) who have disease progression following prior systemic therapy in any setting and are not candidates for curative surgery or radiation in the United States, and has been approved for the similar indication? (including conditional approval) in over 10 countries such as Canada and Australia. In some regions, continued approval for this indication is contingent upon verification and description of clinical benefit in the confirmatory trials. In Europe, it is approved in combination with KEYTRUDA (generic name: pembrolizumab) as the treatment of advanced or recurrent endometrial carcinoma in adults who have disease progression on or following prior treatment with a platinum containing therapy in any setting and who are not candidates for curative surgery or radiation.

 

About KEYTRUDA^??(pembrolizumab) Injection, 100mg

KEYTRUDA is an anti-programmed death receptor-1 (PD-1) therapy that works by increasing the ability of the body’s immune system to help detect and fight tumor cells. KEYTRUDA is a humanized monoclonal antibody that blocks the interaction between PD-1 and its ligands, PD-L1 and PD-L2, thereby activating T lymphocytes which may affect both tumor cells and healthy cells.

Merck & Co., Inc., Kenilworth, N.J., U.S.A. has the industry’s largest immuno-oncology clinical research program. There are currently more than 1,600 trials studying KEYTRUDA across a wide variety of cancers and treatment settings. The KEYTRUDA clinical program seeks to understand the role of KEYTRUDA across cancers and the factors that may predict a patient’s likelihood of benefitting from treatment with KEYTRUDA, including exploring several different biomarkers.

About the Eisai and Merck & Co., Inc., Kenilworth, N.J., U.S.A. Strategic Collaboration

In March 2018, Eisai and Merck & Co., Inc., Kenilworth, N.J., U.S.A., known as MSD outside the United States and Canada, through an affiliate, entered into a strategic collaboration for the worldwide co-development and co-commercialization of LENVIMA. Under the agreement, the companies will jointly develop, manufacture and commercialize LENVIMA, both as monotherapy and in combination with KEYTRUDA, the anti-PD-1 therapy from Merck & Co., Inc., Kenilworth, N.J., U.S.A.

In addition to ongoing clinical studies evaluating the LENVIMA plus KEYTRUDA combination across several different tumor types, the companies have jointly initiated new clinical studies through the LEAP (LEnvatinib And Pembrolizumab) clinical program and are evaluating the combination in more than 10 different tumor types across more than 20 clinical trials.

 

Eisai’s Focus on Cancer

Eisai focuses on the development of anticancer drugs, targeting the tumor microenvironment (with experience and knowledge from existing in-house discovered compounds) and the driver gene mutation and aberrant splicing (leveraging RNA Splicing Platform) as areas (Ricchi) where real patient needs are still unmet, and where Eisai can aim to become a frontrunner in oncology. Eisai aspires to discover innovative new drugs with new targets and mechanisms of action from these Ricchi, with the aim of contributing to the cure of cancers.

 

About Eisai

Eisai is a leading global research and development-based pharmaceutical company headquartered in Japan, with approximately 10,000 employees worldwide. We define our corporate mission as “giving first thought to patients and their families and to increasing the benefits health care provides,” which we call our human health care (hhc) philosophy. We strive to realize our hhc philosophy by delivering innovative products in therapeutic areas with high unmet medical needs, including Oncology and Neurology. In the spirit of hhc, we take that commitment even further by applying our scientific expertise, clinical capabilities and patient insights to discover and develop innovative solutions that help address society’s toughest unmet needs, including neglected tropical diseases and the Sustainable Development Goals.

For more information about Eisai, please visit www.eisai.com (for global headquarters: Eisai. Co., Ltd.), us.eisai.com (for U.S. headquarters: Eisai, Inc.) or www.eisai.eu (for Europe, Middle East, Africa, Russia, Australia and New Zealand headquarters: Eisai Europe Ltd.), and connect with us on Twitter (U.S. and global) and LinkedIn (for U.S. and EMEA).

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Merck & Co., Inc., Kenilworth, N.J., U.S.A.’s Focus on Cancer

Our goal is to translate breakthrough science into innovative oncology medicines to help people with cancer worldwide. At Merck & Co., Inc., Kenilworth, N.J., U.S.A., the potential to bring new hope to people with cancer drives our purpose and supporting accessibility to our cancer medicines is our commitment. As part of our focus on cancer, Merck & Co., Inc., Kenilworth, N.J., U.S.A. is committed to exploring the potential of immuno-oncology with one of the largest development programs in the industry across more than 30 tumor types. We also continue to strengthen our portfolio through strategic acquisitions and are prioritizing the development of several promising oncology candidates with the potential to improve the treatment of advanced cancers. For more information about our oncology clinical trials, visit www.merck.com/clinicaltrials.

 

About Merck & Co., Inc., Kenilworth, N.J., U.S.A. 　

For over 130 years, Merck & Co., Inc., Kenilworth, N.J., U.S.A., known as MSD outside of the United States and Canada, has been inventing for life, bringing forward medicines and vaccines for many of the world’s most challenging diseases in pursuit of our mission to save and improve lives. We demonstrate our commitment to patients and population health by increasing access to health care through far-reaching policies, programs and partnerships. Today, Merck & Co., Inc., Kenilworth, N.J., U.S.A. continues to be at the forefront of research to prevent and treat diseases that threaten people and animals – including cancer, infectious diseases such as HIV and Ebola, and emerging animal diseases – as we aspire to be the premier research-intensive　biopharmaceutical company in the world. For more information, visit www.merck.com and connect with us on Twitter, Facebook, Instagram, YouTube and LinkedIn.

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Forward-Looking Statement of Merck & Co., Inc., Kenilworth, N.J., USA

This news release of Merck & Co., Inc., Kenilworth, N.J., USA (the “company”) includes “forward-looking statements” within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. These statements are based upon the current beliefs and expectations of the company’s management and are subject to significant risks and uncertainties. There can be no guarantees with respect to pipeline products that the products will receive the necessary regulatory approvals or that they will prove to be commercially successful. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements.

Risks and uncertainties include but are not limited to, general industry conditions and competition; general economic factors, including interest rate and currency exchange rate fluctuations; the impact of the global outbreak of novel coronavirus disease (COVID-19); the impact of pharmaceutical industry regulation and health care legislation in the United States and internationally; global trends toward health care cost containment; technological advances, new products and patents attained by competitors; challenges inherent in new product development, including obtaining regulatory approval; the company’s ability to accurately predict future market conditions; manufacturing difficulties or delays; financial instability of international economies and sovereign risk; dependence on the effectiveness of the company’s patents and other protections for innovative products; and the exposure to litigation, including patent litigation, and/or regulatory actions.

The company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. Additional factors that could cause results to differ materially from those described in the forward-looking statements can be found in the company’s 2020 Annual Report on Form 10-K and the company’s other filings with the Securities and Exchange Commission (SEC) available at the SEC’s Internet site (www.sec.gov).

 

¹? International Agency for Research on Cancer, World Health Organization. “Kidney Fact Sheet.” Cancer Today, 2020.

https://gco.iarc.fr/today/data/factsheets/cancers/29-Kidney-fact-sheet.pdf .

²? International Agency for Research on Cancer, World Health Organization. “Japan Fact Sheet.” Cancer Today, 2020.
https://gco.iarc.fr/today/data/factsheets/populations/392-japan-fact-sheets.pdf .

³? American Cancer Society. Key Statistics About Kidney Cancer.
https://www.cancer.org/cancer/kidney-cancer/about/key-statistics.html .

⁴? Seattle Cancer Care Alliance. “Kidney Cancer Fact.”

https://www.seattlecca.org/diseases/kidney-cancer/facts .

⁵? Richard E. et al. Renal Cell Carcinoma: Diagnosis and Management. American Family Physician. 2019 Feb 1;99(3):179-184.

https://www.aafp.org/afp/2019/0201/afp20190201p179.pdf .

⁶? Cancer. Net. “Statistics, 2021.” Kidney cancer.

https://www.cancer.net/cancer-types/kidney-cancer/statistics .