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Last Updated: November 21, 2019

DrugPatentWatch Database Preview

Details for Patent: 8,454,998

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Which drugs does patent 8,454,998 protect, and when does it expire?

Patent 8,454,998 protects RYTARY and is included in one NDA.

This patent has twenty-four patent family members in eleven countries.

Summary for Patent: 8,454,998
Title:Controlled release formulations of levodopa and uses thereof
Abstract: The current invention provides a controlled release oral solid formulation of levodopa comprising levodopa, a decarboxylase inhibitor, and a carboxylic acid. Also provided by this invention is multiparticulate, controlled release oral solid formulations of levodopa comprising: i) a controlled release component comprising a mixture of levodopa, a decarboxylase inhibitor and a rate controlling excipient; ii) a carboxylic acid component; and iii) an immediate release component comprising a mixture of levodopa and a decarboxylase inhibitor.
Inventor(s): Hsu; Ann (Los Altos Hills, CA), Kou; Jim H. (San Jose, CA), Alani; Laman (Hillsborough, CA)
Assignee: Impax Laboratories, Inc. (Hayward, CA)
Application Number:13/367,230
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,454,998
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Dosage form;

Drugs Protected by US Patent 8,454,998

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Impax Labs Inc RYTARY carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 203312-001 Jan 7, 2015 RX Yes No   Start Trial   Start Trial Y TREATMENT OF POST-ENCEPHALITIC PARKINSONISM, AND PARKINSONISM THAT MAY FOLLOW CARBON MONOXIDE INTOXICATION OR MANGANESE INTOXICATION   Start Trial
Impax Labs Inc RYTARY carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 203312-001 Jan 7, 2015 RX Yes No   Start Trial   Start Trial Y TREATMENT OF PARKINSONISM THAT MAY FOLLOW CARBON MONOXIDE INTOXICATION OR MANGANESE INTOXICATION   Start Trial
Impax Labs Inc RYTARY carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 203312-001 Jan 7, 2015 RX Yes No   Start Trial   Start Trial Y TREATMENT OF POST-ENCEPHALITIC PARKINSONISM   Start Trial
Impax Labs Inc RYTARY carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 203312-001 Jan 7, 2015 RX Yes No   Start Trial   Start Trial Y TREATMENT OF PARKINSON'S DISEASE   Start 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

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