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Wednesday, 25 May 2016, 15:25 HKT/SGT

Source: Eisai
Eisai to Launch In-House Developed Antiepileptic Drug Fycompa (Perampanel Hydrate)
As Adjunctive Therapy for Partial-Onset and Generalized Tonic-Clonic Seizures in Japan

TOKYO, May 25, 2016 - (JCN Newswire) - Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") announced today that it will launch its in-house-discovered antiepileptic drug (AED) Fycompa Tablets 2 mg and 4 mg (perampanel hydrate) as an adjunctive therapy for partial-onset seizures (including secondarily generalized seizures) or primary generalized tonic-clonic seizures in patients with epilepsy showing inadequate response to other AEDs in Japan on May 26, 2016. Eisai received marketing and manufacturing approval for this formulation on March 28, 2016, and the product has been added to Japan's National Health Insurance drug price list as of today.

Discovered at Eisai's Tsukuba Research Laboratories and developed in-house, Fycompa is a first-in-class AED, available in tablet form as a once-daily oral dose. It is a highly selective, noncompetitive AMPA receptor antagonist that reduces neuronal hyperexcitation associated with seizures by targeting glutamate activity at postsynaptic AMPA receptors. In both a Phase III clinical study (Study 335)(1) of adjunctive Fycompa in refractory partial-onset seizures, as well as a Phase III clinical study (Study 332)(2) of adjunctive Fycompa in primary generalized tonic-clonic (PGTC) seizures, Fycompa demonstrated a statistically significant reduction in seizure frequency. Furthermore, in Study 332, 30.9% of patients treated with Fycompa were free of PGTC seizures during the 13 week maintenance period (12.3% for placebo). The most common adverse events (>/= 10% in the perampanel arms and greater than placebo) observed in Studies 332 and 335 were dizziness, fatigue, headache, somnolence and irritability.

Epilepsy affects approximately 1 million people in Japan. 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%. PGTC seizures are one of the most common and most severe forms of generalized seizures, accounting for approximately 60% of generalized seizures and approximately 20% of all epilepsy cases.(3) The frequency of generalized tonic-clonic seizures is the most important risk factor associated with sudden unexpected death in epilepsy (SUDEP).(4) As approximately 30% of patients with epilepsy are unable to control their seizures with currently available AEDs,(5) this is a disease with significant unmet medical needs.

Fycompa is currently approved in more than 45 countries and territories, including Europe and the United States, as an adjunctive treatment of partial-onset seizures (with or without secondarily generalized seizures) in adult and adolescent patients with epilepsy 12 years of age and older. Fycompa has been also been approved in more than 35 countries, including Europe and the United States, for the adjunctive therapy of PGTC seizures in patients with epilepsy 12 years of age and older.
Eisai considers neurology a therapeutic area of focus, and by providing Fycompa as a new treatment option in Japan in addition to the AEDs Inovelon and Fostoin as part of an extensive epilepsy product portfolio, Eisai seeks to make continued contributions to address the diverse needs of, as well as increasing the benefits provided to, patients with epilepsy and their families.

(1) Nishida T, et al. "A randomized double-blind, placebo-controlled study to evaluate the efficacy and safety of perampanel as adjunctive therapy in patients with refractory partial-onset seizures from the Asia-Pacific region." Abstract. 69th American Epilepsy Society (AES) Annual Meeting, 2015; 3.256
(2) French JA, et al. "Perampanel for tonic-clonic seizures in idiopathic generalized epilepsy." Neurology 2015; 85, 950-957
(3) Hauser WA, et al. Epilepsia, 34(3):453-468,1993
(4) Shorvon S, Tomson T. "Sudden unexpected death in epilepsy." Lancet, 2011; 378:2028-2038
(5) "The Epilepsies and Seizures: Hope Through Research. What are the epilepsies?" National Institute of Neurological Disorders and Stroke, accessed May 24, 2016,

About Eisai

Eisai Co., Ltd. is a leading global research and development-based pharmaceutical company headquartered in Japan. 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. With approximately 10,000 employees working across our global network of R&D facilities, manufacturing sites and marketing subsidiaries, we strive to realize our hhc philosophy by delivering innovative products in various therapeutic areas with high unmet medical needs, including Neurology and Oncology.

In its medium-term business plan EWAY2025, Eisai is aiming to become a "Medico Societal Innovator" (a company that changes society through creating medicines and providing solutions), and is working on establishment of ecosystem platform business utilizing various data such as a large amount of clinical data, experiences, and know-how.

For more information about Eisai Co., Ltd., please visit

Public Relations Department,
Eisai Co., Ltd.

May 25, 2016 15:25 HKT/SGT
Source: Eisai

Eisai (TSE: 4523)

Topic: Press release summary
Sectors: BioTech
From the Asia Corporate News Network

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