Patent · US Active

Polymorphic forms of naltrexone

US8975272B2 · kind B2 · utility

2Cited by

4References

4Claims

0Family size

Assignee

Alkermes, Inc. · US

Inventors

Harry G. Brittain · Milford, US
David A. Dickason · Cincinnati, US
Joyce M. Hotz · Cincinnati, US
Shawn L. Lyons · Cincinnati, US
J. Michael Ramstack · Lebanon, US
Steven G. Wright · Madeira, US

Key dates

Filing date	Apr 10, 2014
Grant date	Mar 10, 2015
Priority date	—
Expiry date	Apr 10, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07B2200/13
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

This invention relates to the discovery of novel polymorphic forms of naltrexone, including solvates, hydrates, anhydrous and other crystalline forms and combinations thereof. These novel forms of naltrexone impart advantages in pharmaceutical formulations incorporating them, including sustained release, or long acting, formulations.

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