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Drugs in Development Information for Favipiravir

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Summary for Favipiravir

US Patents	15
International Patents	258
US Patent Applications	35
WIPO Patent Applications	35
Japanese Patent Applications	0
Clinical Trial Progress	Phase 3 (2014-01-01)
Vendors	66

US Patents for Favipiravir

Drugname	Patent Number	Patent Title	Patent Assignee	Estimated Expiration
Favipiravir		Nitrogen-containing heterocyclic carboxamide derivatives or salts thereof and antiviral agents comprising the same	Toyama Chemical Co., Ltd. (Tokyo, JP)
Favipiravir		Pyrazine derivatives or salts thereof, pharmaceutical composition containing the same, and production intermediates thereof	Toyama Chemical Co., Ltd. (Tokyo, JP)
Favipiravir		Compositions and kits for treating influenza	Adamas Pharmaceuticals, Inc. (Emeryville, CA)
Favipiravir		Compositions and kits for treating influenza	Adamas Pharmaceuticals, Inc. (Emeryville, CA)
Favipiravir		Organic amine salt of 6-fluoro-3-hydroxy-2-pyrazinecarbonitrile and method for producing the same	Toyama Chemical Co., Ltd. (Tokyo, JP)
Favipiravir		Tablet and granulated powder containing 6-fluoro-3-hydroxy-2-pyrazinecarboxamide	Toyama Chemical Co., Ltd. (Tokyo, JP)
Favipiravir		Method for producing dichloropyrazine derivative	Nippon Soda Co., Ltd. (Tokyo, JP)

International Patents for Favipiravir

Drugname	Country	Document Number	Estimated Expiration	Related US Patent
Favipiravir	Austria	376418	2018-08-20
Favipiravir	Australia	5300499	2018-08-20
Favipiravir	Australia	756635	2018-08-20
Favipiravir	Brazil	9913097	2018-08-20
Favipiravir	Canada	2339272	2018-08-20
Favipiravir	China	1154493	2018-08-20
Favipiravir	China	1275947	2018-08-20