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Last Updated: November 18, 2019

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Details for Patent: 6,228,398

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Summary for Patent: 6,228,398
Title: Multiparticulate modified release composition
Abstract:The invention relates to a multiparticulate modified release composition that in operation delivers an active ingredient in a pulsed or bimodal manner. The multiparticulate modified release composition comprises an immediate release component and a modified release component; the immediate release component comprising a first population of active ingredient containing particles and the modified release component compnsimg a second population of active ingredient containing particles coated with a controlled release coating; wherein the combination of the immediate release and modified release components in operation deliver the active ingredient in a pulsed or a bimodal manner. The invention also relates to a solid oral dosage form containing such a multiparticulate modified release composition. The plasma profile achieved by the multiparticulate modified release composition is advantageous in reducing patient tolerance to the active ingredient and in increasing patient compliance by reducing dosage frequency.
Inventor(s): Devane; John G. (Athlone, IE), Stark; Paul (Athlone, IE), Fanning; Niall M. M. (Athlone, IE)
Assignee: Elan Corporation, PLC (Dublin, IE)
Application Number:09/566,636
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 6,228,398
Patent Claim Types:
see list of patent claims
Composition; Delivery; Formulation; Dosage form; Use;

Drugs Protected by US Patent 6,228,398

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Novartis FOCALIN XR dexmethylphenidate hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 021802-001 May 26, 2005 AB RX Yes No   Start Trial   Start Trial Y METHOD OF TREATING ATTENTION DEFICIT DISORDER USING ORAL ADMINISTRATION OF A BI-MODAL OR PULSATILE RELEASE COMPOSITION   Start Trial
Novartis FOCALIN XR dexmethylphenidate hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 021802-002 May 26, 2005 AB RX Yes No   Start Trial   Start Trial Y METHOD OF TREATING ATTENTION DEFICIT DISORDER USING ORAL ADMINISTRATION OF A BI-MODAL OR PULSATILE RELEASE COMPOSITION   Start Trial
Novartis FOCALIN XR dexmethylphenidate hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 021802-004 Aug 1, 2006 AB RX Yes No   Start Trial   Start Trial Y METHOD OF TREATING ATTENTION DEFICIT DISORDER USING ORAL ADMINISTRATION OF A BI-MODAL OR PULSATILE RELEASE COMPOSITION   Start Trial
Novartis FOCALIN XR dexmethylphenidate hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 021802-003 May 26, 2005 AB RX Yes No   Start Trial   Start Trial Y METHOD OF TREATING ATTENTION DEFICIT DISORDER USING ORAL ADMINISTRATION OF A BI-MODAL OR PULSATILE RELEASE COMPOSITION   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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