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Generated: April 28, 2017

DrugPatentWatch Database Preview

Details for Patent: 8,906,890

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Which drugs does patent 8,906,890 protect, and when does it expire?

Patent 8,906,890 protects ANGELIQ and is included in one NDA. There have been two Paragraph IV challenges on Angeliq.

This patent has nineteen patent family members in seventeen countries.

Summary for Patent: 8,906,890

Title:Very low-dosed solid oral dosage forms for HRT
Abstract: The present invention relates to a very low-dosed dosage form for hormone replacement therapy (HRT). More particularly, the present invention concerns a solid oral dosage form comprising about 0.5 mg estradiol and about 0.25 mg drospirenone, and at least one pharmaceutically acceptable excipient. Despite the very low E2 and DRSP doses it has surprisingly been found that a high proportion of the women suffering from moderate to severe hot flushes actually respond to this treatment. Accordingly, the dosage form of the invention may be used as maintenance HRT or may be used already when HRT is initiated.
Inventor(s): Mletzko; Stephan (Berlin, DE), Schurmann; Rolf (Teltow, DE), Gude; Kerstin (Birkenwerder, DE)
Assignee: Bayer Intellectual Property GmbH (Monheim, DE)
Application Number:13/087,701
Patent Claim Types:
see list of patent claims
Composition; Dosage form; Use;

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Bayer Hlthcare
drospirenone; estradiol
TABLET;ORAL021355-001Feb 29, 2012RXYesNo8,906,890► SubscribeY
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Foreign Priority and PCT Information for Patent: 8,906,890

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
10160072Apr 15, 2010

International Patent Family for Patent: 8,906,890

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office2558063► Subscribe
Eurasian Patent Organization201201403► Subscribe
Costa Rica20120523► Subscribe
Israel222353► Subscribe
Guatemala201200281► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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