Global Patent Index - EP 2023906 A2

EP 2023906 A2 2009-02-18 - DELAYED-RELEASE COMPOSITIONS OF EXTENDED RELEASE FORMS OF VENLAFAXINE

Title (en)

DELAYED-RELEASE COMPOSITIONS OF EXTENDED RELEASE FORMS OF VENLAFAXINE

Title (de)

ZUSAMMENSETZUNGEN MIT VERZÖGERTER FREISETZUNG VON VENLAFAXIN-FORMEN MIT VERLÄNGERTER FREISETZUNG

Title (fr)

COMPOSITIONS À LIBÉRATION RETARDÉE DE FORMES À LIBÉRATION PROLONGÉE DE VENLAFAXINE

Publication

EP 2023906 A2 (EN)

Application

EP 07761266 A

Priority

  • US 2007067397 W
  • US 81154706 P

Abstract (en)

[origin: WO2007143290A2] The present disclosure relates to a delayed controlled release composition of at least one form of venlafaxine. According to the disclosure a delayed controlled release composition of venlafaxine hydrochloride is provided by a blend of polymers in the core formulation. The core formulation having extended release polymers is coated with a non-permeable polymer blend formed of a water in-soluble polymer and an enteric coating polymer, which does not release the active drug in either acid or base for up to about 4 hours. Upon disintegration of the non-permeable coating the active drug is released in a sustained manner due to the polymers within the core formulation. The delayed release prevents the substantial release of venlafaxine into the stomach.

IPC 8 full level (invention and additional information)

A61K 9/28 (2006.01)

CPC (invention and additional information)

A61K 9/2866 (2013.01); A61K 9/2054 (2013.01); A61K 31/137 (2013.01); A61K 9/2081 (2013.01); A61K 9/5047 (2013.01)

Citation (search report)

See references of WO 2007143290A3

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

WO 2007143290 A2 20071213; WO 2007143290 A3 20081016; CA 2654361 A1 20071213; EP 2023906 A2 20090218

INPADOC legal status


2011-05-18 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20101102

2009-09-23 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2009-02-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081210

2009-02-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

2009-02-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK RS