Eisai Fights To Maintain Aricept Patent Rights While Resuming Development On Next Generation Therapy
This article was originally published in PharmAsia News
TOKYO - The preliminary injunction against generic company Teva Pharmaceuticals for its abbreviated new drug application pending at U.S. FDA of Japanese company Eisai's Alzheimer's drug Aricept (donepezil) will have very minimal impact on the generic drug industry as a whole, a Japanese patent lawyer told PharmAsia News
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Japan's Eisai has managed to halt Teva Pharmaceutical plans to market a generic of Eisai's Aricept (donepezil) for treating Alzheimer's disease. Eisai said a U.S. district court issued a preliminary injunction against Teva pending the outcome of a patent-infringement suit Eisai filed against the Israeli drug maker. Eisai, whose Aricept patent does not expire until 2010, said the request for the injunction was part of its effort to "protect our intellectual property throughout the world." (Click here for more
TOKYO - Eisai's new oral jelly formulation of Alzheimer's drug Aricept (donepezil) will have no effect on the Japanese company's position in the market, a pharmaceutical analyst and researcher for KBC Securities Japan told PharmAsia News. "It's just a reformulation from an existing product, that already has a lot of patients," analyst Philip Hall said. Eisai announced its application for the new formulation in Japan March 13. The company will not apply for the new formulation in any other country, Eisai Spokeswoman Chie Suzuki told PharmAsia News. "We consider the particular needs of patients in each country and region." "We developed the new formula for this drug in response to the particular needs of patients in Japan," she said. In Japan, Aricept is already available in tablets, fine granules and orally disintegrating tablets. The new formula is the first Alzheimer's disease treatment available in an oral jelly formulation, according to Eisai.