Patent · US Active

Multiparticulate crystalline drug compositions having controlled release profiles

US7887844B2 · kind B2 · utility

6Cited by

113References

15Claims

0Family size

Assignee

PFIZER INC. · US

Inventors

Leah E. Appel · Bend, US
Roderick J. Ray · Bend, US
David Keith Lyon · Bend, US
James B. West · Bend, US
Scott B. McCray · Bend, US
Marshall Crew · Bend, US
Dwayne T. Friesen · Bend, US
Scott M. Herbig · East Lyme, US
Julian B. Lo · Old Lyme, US

Key dates

Filing date	Dec 3, 2004
Grant date	Feb 15, 2011
Priority date	—
Expiry date	Aug 21, 2028

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K31/4422
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A multiparticulate for controlled release of a drug comprises crystalline drug, a glyceride having at least one alkylate substituent of at least 16 carbon atoms, and a poloxamer, wherein at least 70 wt % of the drug in the multiparticulate is crystalline.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.