Global Patent Index - EP 1033977 A2

EP 1033977 A2 2000-09-13 - PHARMACEUTICAL COMPOSITIONS HAVING THE SHAPE OF POWDERS OF CROSS-LINKED POLYMERS LOADED WITH DRUGS AND RELATED PREPARATION PROCESS BY SUPERCRITICAL FLUIDS

Title (en)

PHARMACEUTICAL COMPOSITIONS HAVING THE SHAPE OF POWDERS OF CROSS-LINKED POLYMERS LOADED WITH DRUGS AND RELATED PREPARATION PROCESS BY SUPERCRITICAL FLUIDS

Title (de)

PULVERFÖRMIGE PHARMAZEUTISCHE ZUSAMMENSETZUNGEN VON WIRKSTOFFBELADENEN VERNETZTEN POLYMEREN UND HERSTELLUNGSVERFAHREN DURCH GEBRAUCH VON ÜBERKRITISCHEN FLÜSSIGKEITEN

Title (fr)

COMPOSITIONS PHARMACEUTIQUES AYANT LA FORME DE POUDRES DE POLYMERES RETICULES CHARGES DE MEDICAMENTS ET PROCEDE DE PREPARATION CORRESPONDANT AU MOYEN DE FLUIDES SUPERCRITIQUES

Publication

EP 1033977 A2 (EN)

Application

EP 98965674 A

Priority

  • EP 9807311 W
  • IT MI972571 A

Abstract (en)

[origin: WO9925322A2] Pharmaceutical compositions in powder form are prepared by loading drugs solubilized in supercritical fluids on cross-linked polymers. The loading process is carried out by means of two steps. In the first step the supercritical fluid is saturated with the drug in suitable temperature and pressure conditions. In the second step the supercritical fluid containing the drug is contacted with the cross-linked polymer. Owing to its particular properties the supercritical fluid penetrates into the polymer and allows the drug to impregnate the polymer itself. After the removal of the fluid the drug remains in the polymer itself.

IPC 1-7 (main, further and additional classification)

A61K 9/16; A61K 9/14

IPC 8 full level (invention and additional information)

A61K 9/14 (2006.01); A61K 9/16 (2006.01); A61K 47/30 (2006.01)

CPC (invention and additional information)

A61K 9/146 (2013.01); A61K 9/1635 (2013.01); A61K 9/1694 (2013.01)

Citation (search report)

See references of WO 9925322A3

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE

EPO simple patent family

WO 9925322 A2 19990527; WO 9925322 A3 19990819; AU 2153199 A 19990607; AU 738748 B2 20010927; BR 9814656 A 20001003; CA 2310423 A1 19990527; EP 1033977 A2 20000913; IT 1296464 B1 19990625; IT MI972571 A1 19990520; JP 2001522873 A 20011120; NZ 505290 A 20020828

INPADOC legal status


2005-05-18 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20041112

2004-08-18 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20040701

2000-09-13 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000530

2000-09-13 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE