Topical compositions of aqueous gel type in the form of a homogeneous suspension of an active principle of the retinoid class containing at least one hydrophobic silica
US9375477B2 · kind B2 · utility
2Cited by
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31Claims
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Key dates
| Filing date | May 30, 2013 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | May 30, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Aqueous-gel type topical compositions are described. The compositions can be in the form of a homogeneous suspension of an active principle of the class of retinoids including at least one hydrophobic silica, the active principle preferably having general formula (I), and more specifically being 3″-tert-butyl-4′-(2-hydroxy-ethoxy)-4″-pyrrolidin-1-yl-[1,1′3′,1″]-terphenyl-4-carboxylic acid. Also described, is the preparation mode thereof and the use of same in the treatment of dermatological conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.