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Serving 500+ biopharmaceutical companies globally:

Citi
Dow
Baxter
Johnson and Johnson
Boehringer Ingelheim
Harvard Business School
US Department of Justice
McKesson
Fuji
Federal Trade Commission

Generated: June 22, 2017

DrugPatentWatch Database Preview

Details for Patent: 8,247,425

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Which drugs does patent 8,247,425 protect, and when does it expire?


Patent 8,247,425 protects RELISTOR and is included in one NDA. There have been three Paragraph IV challenges on Relistor.

This patent has twenty-six patent family members in fifteen countries.

Summary for Patent: 8,247,425

Title:Peripheral opioid receptor antagonists and uses thereof
Abstract: The present invention provides a compound of formula I: ##STR00001## wherein X.sup.-, R.sup.1, and R.sup.2 are as defined herein, and compositions thereof.
Inventor(s): Bazhina; Nataliya (Tappan, NY), Donato, III; George Joseph (Swarthmore, PA), Fabian; Steven R. (Barnegat, NJ), Lokhnauth; John (Fair Lawn, NJ), Megati; Sreenivasulu (New City, NY), Melucci; Charles (Highland Mills, NY), Ofslager; Christian (Newburgh, NY), Patel; Niketa (Lincoln Park, NJ), Radebaugh; Galen (Chester, NJ), Shah; Syed M. (East Hanover, NJ), Szeliga; Jan (Croton on Hudson, NY), Zhang; Huyi (Garnerville, NY), Zhu; Tianmin (Monroe, NY)
Assignee: Wyeth (Madison, NJ)
Application Number:12/570,891
Patent Claim Types:
see list of patent claims
Composition; Compound; Use;

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Salix Pharms
RELISTOR
methylnaltrexone bromide
SOLUTION;SUBCUTANEOUS021964-002Sep 27, 2010RXYesYes8,247,425► Subscribe TREATMENT OF OPIOID-INDUCED CONSTIPATION
Salix Pharms
RELISTOR
methylnaltrexone bromide
SOLUTION;SUBCUTANEOUS021964-001Apr 24, 2008RXYesYes8,247,425► Subscribe TREATMENT OF OPIOID-INDUCED CONSTIPATION
Salix Pharms
RELISTOR
methylnaltrexone bromide
SOLUTION;SUBCUTANEOUS021964-003Sep 27, 2010RXYesYes8,247,425► Subscribe TREATMENT OF OPIOID-INDUCED CONSTIPATION
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Non-Orange Book Patents for Patent: 8,247,425

For Orange Book-listed patents (shown in the main table above) generic applications must certify that the listed patents are expired, invalid, or will not be infringed by generic entry.

The non-Orange Book patents listed below do not require formal certifications, so they do not automatically impede generic entry. Instead, they represent potential opportunities for branded firms to block generic entry through patent infringment challenges.

Patent No. Title Estimated Patent Expiration
9,180,125Peripheral opioid receptor antagonists and uses thereof► Subscribe
8,420,663Peripheral opioid receptor antagonists and uses thereof► Subscribe
9,492,445Peripheral opioid receptor antagonists and uses thereof► Subscribe
8,822,490Peripheral opioid receptor antagonists and uses thereof► Subscribe
8,455,644Peripheral opioid receptor antagonists and uses thereof► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Because of the complexity of determining patent expiration dates it is advisable to have patent counsel verify freedom to operate.

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International Patent Family for Patent: 8,247,425

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Singapore194393► Subscribe
Russian Federation2013157119► Subscribe
Russian Federation2011117335► Subscribe
New Zealand619972► Subscribe
New Zealand602667► 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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Serving 500+ biopharmaceutical companies globally:

Queensland Health
Teva
Covington
Citi
Federal Trade Commission
Fish and Richardson
Argus Health
AstraZeneca
Farmers Insurance
Chubb

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

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