Patent · US Active

Polymorphic forms of naltrexone

US8389540B2 · kind B2 · utility

1Cited by

10References

12Claims

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	Sep 25, 2007
Grant date	Mar 5, 2013
Priority date	—
Expiry date	Jun 28, 2031

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.