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Last Updated: March 29, 2024

Details for Patent: 6,344,215


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Summary for Patent: 6,344,215
Title: Methylphenidate modified release formulations
Abstract:A pharmaceutical MR (modified release) multiparticulate dosage form such as a capsule (once-a-day MR Capsule) of Methylphenidate indicated for the treatment of children with attention deficit hyperactivity disorder (ADHD), capable of delivering a portion of the dose for rapid onset of action and the remainder of the dose in a controlled manner for about 12 hours, is composed of a multitude of multicoated particles made of two populations of drug layered beads, IR (immediate release) and ER (extended release) Beads. The IR beads preferably are made by layering an aqueous solution comprising a drug and a binder on to non-pareil sugar spheres and then applying a seal coat to the drug coated cores. The ER Beads are made by applying an extended release coating of a water insoluble dissolution rate controlling polymer such as ethylcellulose to IR Beads. The MR Capsules are manufactured by filling IR and ER Beads in a proper ratio; the dose and the ratio required for an efficacious, cost effective and patient compliant treatment of children with ADHD were determined from extensive clinical investigations and in vitro- in vivo correlations performed as per FDA Guidelines, Guidance for Industry: Extended Release Oral Dosage Forms.
Inventor(s): Bettman; Marie J. (Clayton, OH), Percel; Phillip J. (Troy, OH), Hensley; Dan L. (Huber Heights, OH), Vishnupad; Krishna S. (Dayton, OH), Venkatesh; Gopi M. (Dayton, OH)
Assignee: Eurand America, Inc. (Vandalia, OH)
Application Number:09/697,803
Patent Claim Types:
see list of patent claims
Composition; Formulation; Compound; Dosage form; Device;

Drugs Protected by US Patent 6,344,215

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>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 6,344,215

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2001297011 ⤷  Try a Trial
Australia 9701101 ⤷  Try a Trial
Canada 2426883 ⤷  Try a Trial
Cyprus 1118946 ⤷  Try a Trial
Denmark 2103307 ⤷  Try a Trial
European Patent Office 1328251 ⤷  Try a Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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