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Last Updated: September 17, 2021

DrugPatentWatch Database Preview

Details for Patent: 8,598,233


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Which drugs does patent 8,598,233 protect, and when does it expire?

Patent 8,598,233 protects NAMZARIC and is included in one NDA.

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

This patent has fifty-nine patent family members in nineteen countries.

Summary for Patent: 8,598,233
Title:Method for administering an NMDA receptor antagonist to a subject
Abstract: Compositions and methods for administering memantine to a subject are provided. In particular, a solid pharmaceutical composition in a unit dosage form for once daily oral administration is provided. The compositions comprises an extended release formulation of 22.5 mg to 33.75 mg memantine, or a pharmaceutically acceptable salt thereof, wherein administration of a dose of the composition to a human subject provides a mean plasma memantine concentration profile characterized by a change in memantine concentration as a function of time (dC/dT) that is less than 50% of the dC/dT provided by the same quantity of an immediate release form of memantine, determined in a time period between 0 hours to 6 hours after administration of memantine, and wherein dC/dT is measured in a single-dose human PK study. Methods of treating dementia, in particular Alzheimer's diseases, using the compositions are provided.
Inventor(s): Went; Gregory T. (Mill Valley, CA), Fultz; Timothy J. (Pleasant Hill, CA), Meyerson; Laurence R. (Las Vegas, NV)
Assignee: Adamas Pharmacueticals, Inc. (Emeryville, CA)
Application Number:13/751,876
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,598,233
Patent Claim Types:
see list of patent claims
Composition; Formulation; Dosage form;

Recent additions to Drugs Protected by US Patent 8,598,233

These patents are from the daily update and have not yet been integrated into the regular database
Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Product Substance Delist Req. Patent Expiration Usecode Patented / Exclusive Use
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Type >RLD >Patent No. >Product >Substance >Delist Req. >Patent Expiration >Usecode >Patented / Exclusive Use

Drugs Protected by US Patent 8,598,233

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Allergan NAMZARIC donepezil hydrochloride; memantine hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 206439-003 Jul 18, 2016 RX Yes No ⤷  Try it Free ⤷  Try it Free Y ⤷  Try it Free
Allergan NAMZARIC donepezil hydrochloride; memantine hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 206439-001 Dec 23, 2014 RX Yes No ⤷  Try it Free ⤷  Try it Free Y ⤷  Try it Free
Allergan NAMZARIC donepezil hydrochloride; memantine hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 206439-004 Jul 18, 2016 RX Yes No ⤷  Try it Free ⤷  Try it Free Y ⤷  Try it Free
Allergan NAMZARIC donepezil hydrochloride; memantine hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 206439-002 Dec 23, 2014 RX Yes Yes ⤷  Try it Free ⤷  Try it Free Y ⤷  Try it Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 8,598,233

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 481096 ⤷  Try it Free
Australia 2005209310 ⤷  Try it Free
Australia 2005215767 ⤷  Try it Free
Australia 2005215775 ⤷  Try it Free
Australia 2005309601 ⤷  Try it Free
Australia 2006244297 ⤷  Try it Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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