Patent · US Active

Hydrogel-driven drug dosage form

US9028870B2 · kind B2 · utility

1Cited by

4References

3Claims

0Family size

Assignee

Bend Reserch, Inc. · US

Inventors

Leah E. Appel · Bend, US
Ronald A. Beyerinck · Bend, US
Mark Chidlaw · Bend, US
William J. Curatolo · Niantic, US
Dwayne T. Friesen · Bend, US
Kelly L. Smith · Phoenix, US
Avinash Thombre · Dover, US

Key dates

Filing date	Dec 27, 2010
Grant date	May 12, 2015
Priority date	—
Expiry date	Dec 27, 2030

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P29/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A controlled release dosage form has a coated core with the core comprising a drug-containing composition and a water-swellable composition, each occupying separate regions within the core. The drug-containing composition comprises a low-solubility drug and a drug-entraining agent. The coating around the core is water-permeable, water-insoluble and has at least one delivery port therethrough. A variety of formulations having specific drug release profiles are disclosed.

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