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Last Updated: September 26, 2021

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Details for Patent: 7,163,931


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Summary for Patent: 7,163,931
Title:Compositions of estrogen-cyclodextrin complexes
Abstract:Pharmaceutical compositions comprising low doses of sensitive complexes between an estrogen and a cyclodextrin are provided with improved stability. In specific embodiments the composition comprises a complex between ethinyl estradiol and .beta.-cyclodextrin in a granulate preparation and in yet another embodiment the composition comprises a limited amount of polyvinylpyrrolidone since this excipient was found to degrade ethinyl estradiol. Furthermore, a method for improving the stability of an estrogen in a composition and for manufacturing such a stable composition is provided. Essentially, the granulate preparation are manufactured under careful control of the relative humidity.
Inventor(s): Backensfeld; Thomas (Berlin, DE), Heil; Wolfgang (Berlin, DE), Lipp; Ralph (Berlin, DE)
Assignee: Schering Aktiengesellchaft (Berlin, DE)
Application Number:11/102,681
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 7,163,931
Patent Claim Types:
see list of patent claims
Use; Composition;

Drugs Protected by US Patent 7,163,931

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Bayer Hlthcare BEYAZ drospirenone; ethinyl estradiol; levomefolate calcium TABLET;ORAL 022532-001 Sep 24, 2010 AB RX No No ⤷  Free Forever Trial ⤷  Free Forever Trial PREVENTION OF PREGNANCY ⤷  Free Forever Trial
Bayer Hlthcare SAFYRAL drospirenone; ethinyl estradiol; levomefolate calcium TABLET;ORAL 022574-001 Dec 16, 2010 AB RX Yes Yes ⤷  Free Forever Trial ⤷  Free Forever Trial PREVENTION OF PREGNANCY ⤷  Free Forever Trial
Bayer Hlthcare YAZ drospirenone; ethinyl estradiol TABLET;ORAL 021676-001 Mar 16, 2006 AB RX Yes Yes ⤷  Free Forever Trial ⤷  Free Forever Trial PREVENTION OF PREGNANCY ⤷  Free Forever Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 7,163,931

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
00610135Dec 20, 2000

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Serving leading biopharmaceutical companies globally:

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