Patent · US Active

Muco-adhesive, controlled release formulations of levodopa and/or esters of levodopa and uses thereof

US11622941B2 · kind B2 · utility

11Cited by

63References

29Claims

0Family size

Assignee

Impax Laboratories, LLC · US

Inventors

Ann Hsu · Los Altos Hills, US
Liang Dong · Ann Arbor, US
Amy Ding · Hayward, US
Suneel Gupta · Sunnyvale, US

Key dates

Filing date	Jul 10, 2021
Grant date	Apr 11, 2023
Priority date	—
Expiry date	Sep 15, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02A50/30
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention provides an oral solid formulation comprising (a) a controlled release component comprising a core comprising levodopa, wherein the core is coated with a layer of a muco-adhesive polymer and externally coated with a layer of an enteric polymer; and (b) an immediate release component comprising carbidopa and levodopa.

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