Topical drug patch including microspheres
US9808429B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Aug 18, 2014 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Aug 18, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/0259
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A topical drug delivery patch (1) comprising a drug delivery layer (3) including microspheres (2) encapsulating a drug, said microspheres being carried in a hydro gel. The drug delivery layer has a support layer (5) which is attached to a first face of the drug deliver layer and a releasable protective layer (4) attached to a second face of the drug delivery layer. The releasable protective layer can be peeled away do the patch can be applied to the skin to release drugs in the microspheres. The patch is particularly useful for treating skin conditions such as psoriasis and eczema.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.