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Details for Patent: 5,968,895

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Patent 5,968,895 protects PLENAXIS and is included in one NDA.

This patent has fifty-nine patent family members in thirty-four countries.

Summary for Patent: 5,968,895

Title: Pharmaceutical formulations for sustained drug delivery
Abstract:Sustained delivery formulations comprising a water-insoluble complex of a peptide and a carrier macromolecule are disclosed. The formulations of the invention allow for loading of high concentrations of peptide in a small volume and for delivery of a pharmaceutically active peptide for prolonged periods, e.g., one month, after administration of the complex. The complexes of the invention can be milled or crushed to a fine powder. In powdered form, the complexes form stable aqueous suspensions and dispersions, suitable for injection. In a preferred embodiment, the peptide of the complex is an LHRH analogue, preferably an LHRH antagonist, and the carrier macromolecule is an anionic polymer, preferably carboxymethylcellulose. Methods of making the complexes of the invention, and methods of using LHRH-analogue-containing complexes to treat conditions treatable with an LHRH analogue, are also disclosed.
Inventor(s): Gefter; Malcolm L. (Lincoln, MA), Barker; Nicholas (Southborough, MA), Musso; Gary (Hopkinton, MA), Molineaux; Christopher J. (Brookline, MA)
Assignee: Praecis Pharmaceuticals, Inc. (Cambridge, MA)
Application Number:08/762,747
Patent Claim Types:
see list of patent claims
Composition; Dosage form; Delivery;
Patent Metrics:
Source: PatentQuant.com
Field: Not categorized
Back Citations: 52nd percentile
Forward Citations: 4th percentile

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Speciality European
PLENAXIS
abarelix
INJECTABLE;INTRAMUSCULAR021320-001Nov 25, 2003DISCNNo5,968,895► subscribeY
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Non-Orange Book Patents for Patent: 5,968,895

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
6,699,833 Pharmaceutical formulations for sustained drug delivery► subscribe
6,180,608 Pharmaceutical formulations for sustained drug delivery► 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: 5,968,895

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina010351► subscribe
Austria378059► subscribe
Austria383165► 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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