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Details for Patent: RE37721

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Patent RE37721 protects ZETIA and VYTORIN and is included in two NDAs. There have been zero Paragraph IV challenges on Vytorin and Zetia There are five tentative approvals for the compound protected by this patent. Additional details are available via the generic ingredient links below.

Protection for ZETIA has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

This patent has forty-eight patent family members in thirty countries.

Summary for Patent: RE37721

Title: Hydroxy-substituted azetidinone compounds useful as hypocholesterolemic agents
Abstract:Hydroxy-substituted azetidinone hypocholesterolemic agents of the formula ##STR1## or a pharmaceutically acceptable salt thereof, wherein: Ar.sup.1 and Ar.sup.2 are aryl or R.sup.4 -substituted aryl; Ar.sup.3 is aryl or R.sup.5 -substituted aryl; X, Y and Z are --CH.sub.2 --, --CH(lower alkyl)-- or --C(dilower alkyl)--; R and R.sup.2 are --OR.sup.6, --O(CO)R.sup.6, --O(CO)OR.sup.9 or --O(CO)NR.sup.6 R.sup.7 ; R.sup.1 and R.sup.3 are H or lower alkyl; q is 0 or 1; r is 0 or 1; m, n and p are 0-4; provided that at least one of q and r is 1, and the sum of m, n, p, q and r is 1-6; and provided that when p is O and r is 1, the sum of m, q and n is 1-5; R.sup.4 is selected from lower alkyl, R.sub.5, --CF.sub.3, --CN, --NO.sub.2 and halogen R.sup.5 is selected from --OR.sup.6, --O(CO)R.sup.6, --O(CO)OR.sup.9, --O(CH.sub.2).sub.1-5 OR.sup.6, --O(CO)NR.sup.6 R.sup.7, --NR.sub.6 R.sup.7, --NR.sup.6 (CO)R.sup.7, --NR.sup.6 (CO)OR.sup.9, --NR.sup.6 (CO)NR.sup.7 R.sup.8, --NR.sup.6 SO.sub.2 R.sup.9, --COOR.sup.6, --CONR.sup.6 R.sup.7, --COR.sup.6, --SO.sub.2 NR.sup.6 R.sup.7, S(O).sub.0-2 R.sup.9, --O(CH.sub.2).sub.1-10 --COOR.sup.6, --O(CH.sub.2).sub.1-10 CONR.sup.6 R.sup.7, --(lower alkylene)COOR.sup.6 and --CH.dbd.CH--COOR.sup.6 ; R.sup.6, R.sup.7 and R.sup.8 are H, lower alkyl or aryl-substituted Ic R.sup.9 is lower alkyl, aryl or aryl-substituted lower alkyl; are disclosed, as well as a method of lowering serum cholesterol by administering said compounds, alone or in combination with a cholesterol biosynthesis inhibitor, pharmaceutical compositions containing them; and a process for preparing them.
Inventor(s): Rosenblum; Stuart B. (West Orange, NJ), Dugar; Sundeep (Bridgewater, NJ), Burnett; Duane A. (Fanwood, NJ), Clader; John W. (Cranford, NJ), McKittrick; Brian A. (Bloomfield, NJ)
Assignee: Schering Corporation (Kenilworth, NJ)
Application Number:09/594,996
Patent Claim Types:
see list of patent claims
Compound; Use; Composition;

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Msd Intl Gmbh
ZETIA
ezetimibe
TABLET;ORAL021445-001Oct 25, 2002RXYesRE37721*PED► subscribe
Msd Intl
VYTORIN
ezetimibe; simvastatin
TABLET;ORAL021687-001Jul 23, 2004RXNoRE37721*PED► subscribe
Msd Intl
VYTORIN
ezetimibe; simvastatin
TABLET;ORAL021687-002Jul 23, 2004RXNoRE37721*PED► subscribe
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Non-Orange Book Patents for Patent: RE37721

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
RE42461Hydroxy-substituted azetidinone compounds useful as hypocholesterolemic agents► subscribe
5,631,365 Hydroxy-substituted azetidinone compounds useful as hypocholesterolemic agents► subscribe
5,767,115 Hydroxy-substituted azetidinone compounds useful as hypocholesterolemic agents► 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: RE37721

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria180249► subscribe
Australia681445► subscribe
Australia7795294► 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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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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