Modified carrier particles for use in dry powder inhalers
US7132115B2 · kind B2 · utility
59Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2003 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Jul 29, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/145
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to carrier particles for use in pharmaceutical compositions for the pulmonary administration of medicaments by means of dry powder inhalers. In particular, the invention relates to a novel technological process for obtaining a carrier modified so as to improve the efficiency of redispersion of active particles and hence increase the respirable fraction. After the treatment of the invention, the surface of said modified carrier particles can also be coated with a suitable additive so as to further improve the respirable fraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.