Anionic hydrogel matrices with pH dependent modified release as drug carriers

Details for Australian Patent Application No. 2005228716 (hide)

Owner Sigma-Tau Industrie Farmaceutiche Riunite S.p.A.

Inventors Giammona, Gaetano; Mandracchia, Delia

Agent Lord and Company

Pub. Number AU-B-2005228716

PCT Pub. Number WO2005/094792

Priority RM2004A000168 01.04.04 IT

Filing date 16 February 2005

Wipo publication date 13 October 2005

Acceptance publication date 15 July 2010

International Classifications

A61K 9/70 (2006.01) Medicinal preparations characterised by special physical form - Web, sheet or filament bases

A61K 9/16 (2006.01) Medicinal preparations characterised by special physical form - Agglomerates

A61K 9/19 (2006.01) Medicinal preparations characterised by special physical form - lyophilised

A61K 31/205 (2006.01)

A61K 47/34 (2006.01) Medicinal preparations characterised by the non-active ingredients used, e.g. carriers, inert additives - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

Event Publications

27 July 2006 PCT application entered the National Phase

  PCT publication WO2005/094792 Priority application(s): WO2005/094792

15 July 2010 Application Accepted

  Published as AU-B-2005228716

11 November 2010 Standard Patent Sealed

13 September 2012 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This patent ceased under section 143(a), or Expired. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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