Intravaginal ring drug delivery system
US10413504B2 · kind B2 · utility
4Cited by
24References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2014 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Jul 1, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Described herein is an intra-vaginal drug delivery system comprising (i) a core comprising a first thermoplastic polymer and a first therapeutic agent, wherein the first therapeutic agent is dissolved in the first thermoplastic polymer, and (ii) a skin surrounding the core comprising a second thermoplastic polymer, wherein the first therapeutic agent is less permeable in the second thermoplastic polymer than the first thermoplastic polymer, and a second therapeutic agent in solid form, wherein the second therapeutic agent is loaded in a portion of the skin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.