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Friday, 20 September 2019, 15:13 HKT/SGT
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Source: Eisai
Eisai and Meiji Announce Parkinson's Disease Treatment Equfina Tablets (Safinamide Mesilate) Approved In Japan

TOKYO, Sept 20, 2019 - (JCN Newswire) - Eisai Co., Ltd. and Meiji Seika Pharma Co., Ltd. has announced the manufacturing and marketing approval in Japan for the indication of improvement of wearing-off phenomenon in patients with Parkinson's disease under treatment with a drug containing levodopa for Equfina TABLETS (safinamide mesilate, "safinamide"), which was developed for use in the treatment of patients with Parkinson's disease was obtained. In Japan, Meiji holds the manufacturing and marketing approval for safinamide, and Eisai exclusively sells the safinamide.

Parkinson's disease is a neurodegenerative disease which causes motor impairment, with symptoms including tremors in the limbs, muscular rigidity and shuffling gait. It is caused by degeneration of the dopamine nervous system, which leads to a shortage of dopamine, a neurotransmitter in the brain. There are approximately 200,000 patients suffering from Parkinson's disease in Japan(1), and the number of patients is increasing due to the aging of the population.(1), (2) Drugs containing levodopa are widely used to treat Parkinson's disease by replenishing the brain's supply of dopamine. However, as the disease progresses, levodopa's duration of effect ("on" time) decreases, and there are cases where patients may experience wearing-off phenomena, a return of Parkinson's disease symptoms before the next dose. Safinamide through its main mechanism of action as a selective monoamine oxidase B (MAO-B) inhibitor, increases the density of endogenous dopamine and exogenous dopamine from levodopa-containing drugs in the brain.

This manufacturing and marketing approval is based on a double-blind, placebo-controlled Phase II/III study (study ME2125-3) to evaluate the efficacy and safety of safinamide as add-on therapy and an open label Phase III study (study ME2125-4) to evaluate the safety and efficacy of long-term administration of safinamide in Japanese patients with Parkinson's disease with wearing-off phenomena who are currently receiving levodopa, as well as global clinical trials.

In study ME2125-3, the change in mean daily "on" time from baseline to 24 weeks of the treatment phase, which is the primary endpoint, of treatment with safinamide 50 mg and 100 mg were statistically significant compared to placebo-controlled treatment. The most common adverse drug reactions (ADRs) (incidence 3% and higher) observed with patients with safinamide 50 mg and 100 mg were dyskinesia and visual hallucination. Also in study ME2125-4, with regard to the change in mean daily "on" time from baseline to 52 weeks of the treatment phase, the "on" time with long-term administration of safinamide was extended, and showed the continued effectiveness. The most common ADRs (incidence 3% and higher) observed with patients were dyskinesia, falls, and constipation.

By providing Equifina TABLETS as a new option for Parkinson's disease treatment, Eisai and Meiji will make further contributions to address the diverse needs of, and increase the benefits provided to, Parkinson's disease patients and their families.


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 https://www.eisai.co.jp.

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

Meiji Seika Pharma Co., Ltd.
Public Relations
TEL: +81-(0)3-3273-5614


Sept 20, 2019 15:13 HKT/SGT
Source: Eisai

Eisai (TSE: 4523)

Topic: Press release summary
Sectors: HealthCare
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