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Last Updated: April 19, 2024

Details for Patent: 8,591,946


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Summary for Patent: 8,591,946
Title:Modified release compositions comprising tacrolimus
Abstract: A modified release composition comprising tacrolimus releases less than 20% w/w of the active ingredient within 0.5 hours when subjected to an in vitro dissolution test using USP Paddle method and using 0.1 N HCl as dissolution medium and has increased bioavailability by effectively reducing or even avoiding the effects of CYP3A4 metabolism. The modified composition may be coated with an enteric coating; and/or may comprise a solid dispersion or a solid solution of tacrolimus in a hydrophilic or water-miscible vehicle and one or more modifying release agents; and/or may comprise a solid dispersion or a solid solution of tacrolimus in an amphiphilic or hydrophobic vehicle and optionally one or more modifying release agents.
Inventor(s): Holm; Per (Vanlose, DK)
Assignee: Veloxis Pharmaceuticals A/S (Horsholm, DK)
Application Number:10/569,862
Patent Claim Types:
see list of patent claims
Composition; Formulation; Dosage form; Compound;

Drugs Protected by US Patent 8,591,946

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Veloxis Pharms Inc ENVARSUS XR tacrolimus TABLET, EXTENDED RELEASE;ORAL 206406-001 Jul 10, 2015 RX Yes No ⤷  Try a Trial ⤷  Try a Trial Y ⤷  Try a Trial
Veloxis Pharms Inc ENVARSUS XR tacrolimus TABLET, EXTENDED RELEASE;ORAL 206406-002 Jul 10, 2015 RX Yes No ⤷  Try a Trial ⤷  Try a Trial Y ⤷  Try a Trial
Veloxis Pharms Inc ENVARSUS XR tacrolimus TABLET, EXTENDED RELEASE;ORAL 206406-003 Jul 10, 2015 RX Yes Yes ⤷  Try a Trial ⤷  Try a Trial Y ⤷  Try a 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

Foreign Priority and PCT Information for Patent: 8,591,946

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Denmark2003-01232Aug 29, 2003
Denmark2003-01837Dec 11, 2003
Denmark2004-00079Jan 21, 2004
Denmark2004-00463Mar 23, 2004
Denmark2004-00467Mar 23, 2004
PCT Information
PCT FiledAugust 30, 2004PCT Application Number:PCT/DK2004/000573
PCT Publication Date:March 10, 2005PCT Publication Number: WO2005/020993

International Family Members for US Patent 8,591,946

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 473003 ⤷  Try a Trial
Austria 531368 ⤷  Try a Trial
Australia 2004267909 ⤷  Try a Trial
Australia 2004267910 ⤷  Try a Trial
Brazil PI0413927 ⤷  Try a Trial
Brazil PI0414000 ⤷  Try a Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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