US4859696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precutaneous absorption accelerator and preparation containing same
Assignee: Kao Corp
•
Filing: 1988-08-03
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Granted: 1989-08-22
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Expires: 2008-08-03
Abstract
Abstract A percutaneous absorption accelerator and a precutaneous absorbent preparation containing the same and, more particularly, a percutaneous absorption accelerator containing ether derivatives of specific glycerols or polyglycerols and alcohols as effective components and a percutaneous absorbent preparation containing the percutaneous absorption accelerators and pharmaceutically effective components.
Inventors
- 👤 Tetsuro Kamiya
- 👤 Takeshi Inoue
- 👤 Hidenori Yorozu
- 👤 Yasuteru Eguchi
- 👤 Kaoru Tsujii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:29
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0014; A61K47/00; A61K47/06; A61K47/08; A61K47/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
68 words
A percutaneous absorbent preparation for transdermal or transmucosal absorption of a pharmaceutically active substance, comprising: an effective amount of indomethacin; and an absorption accelerator selected from the group consisting of 1-O-n-decylglycerol, 1-O-n-octyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-dodecyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-tetradecyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-hexadecyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecenyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-methyl-branched isostearyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-octyl-2-O-methyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-dodecyl-2-O-methyl-3-O-2',3'-dihydroxypropylglycerol, 1O-n-dodecyl-2-O-n-butyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-dodecyl-2-O-n-octyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-tetradecyl-2O-methyl-3O-2',3'-dihydroxypropylglycerol, 1-O-n-hexadecyl-2-O-methyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecyl-2-O-methyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecenyl-2-O-methyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecenyl-2-O-n-butyl-3-O-2',3'-dihydroxypropyl-glycerol, 1-O-methyl-branched isostearyl-2-O-methyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-methyl-branched isostearyl-2-O-n-octyl-3-O-2',3'-dihydroxypropylglycerol; 1O-n-octyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-n-dodecyl-3-O-methyl-2-O-2',3'dihydroxypropylglycerol, 1-O-n-dodecyl-3-O-n-butyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-n-dodecyl-3-O-n-octyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-n-tetradecyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-n-hexadecyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecenyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecenyl-3-O-n-butyl-2-O-2',3'-dihydroxypropyl-glycerol, 1-O-methyl-branched isostearyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-methyl-branched isostearyl-3-O-n-butyl-2-O-2',3'-dihydroxypropylglycerol, and 1-O-methyl-branched isostearyl-3-O-n-octyl-2-O-2',3'-dihydroxypropylglycerol.
Claim 2
Dependent Claim
68 words
A percutaneous absorbent preparation for transdermal or transmucosal absorption of a pharmaceutically active substance, comprising: an effective amount of indomethacin; and an absorption accelerator selected from the group consisting of 1-O-n-decylglycerol, 1-O-n-octyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-dodecyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-tetradecyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-hexadecyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecenyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-methyl-branched isostearyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-octyl-2-O-methyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-dodecyl-2-O-methyl-3-O-2',3'-dihydroxypropylglycerol, 1O-n-dodecyl-2-O-n-butyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-dodecyl-2-O-n-octyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-tetradecyl-2O-methyl-3O-2',3'-dihydroxypropylglycerol, 1-O-n-hexadecyl-2-O-methyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecyl-2-O-methyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecenyl-2-O-methyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecenyl-2-O-n-butyl-3-O-2',3'-dihydroxypropyl-glycerol, 1-O-methyl-branched isostearyl-2-O-methyl-3-O-2',3'-dihydroxypropylglycerol, 1-O-methyl-branched isostearyl-2-O-n-octyl-3-O-2',3'-dihydroxypropylglycerol; 1O-n-octyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-n-dodecyl-3-O-methyl-2-O-2',3'dihydroxypropylglycerol, 1-O-n-dodecyl-3-O-n-butyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-n-dodecyl-3-O-n-octyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-n-tetradecyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-n-hexadecyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecenyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-n-octadecenyl-3-O-n-butyl-2-O-2',3'-dihydroxypropyl-glycerol, 1-O-methyl-branched isostearyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-methyl-branched isostearyl-3-O-n-butyl-2-O-2',3'-dihydroxypropylglycerol, and 1-O-methyl-branched isostearyl-3-O-n-octyl-2-O-2',3'-dihydroxypropylglycerol.
Claim 3
Dependent Claim
23 words
The preparation of claim 1, wherein said accelerator is present in an amount of from 0.001 to 10% by weight of said preparation.
Claim 4
Dependent Claim
30 words
The preparation of claim 1, which further contains at least one member selected from the group consisting of ether type non-ionic surfactants, enamine derivatives of phenylglycine, N-acylcollagen peptides, and saponins.
Claim 5
Dependent Claim
33 words
The preparation of claim 1, which is in the form of a liquid, a lotion, an ointment, a cream, a gel, a sol, an aerosol, a cataplasm, a plaster, or a tape preparation.
Claim 6
Dependent Claim
33 words
A method for transdermal or transmucosal absorption of which indomethacin comprises administering an effective amount of the percutaneous absorbent preparation of claim 1 to the skin or a mucous membrane of a subject.
Claim 7
Dependent Claim
41 words
The preparation of claim 4, which is in the form of an ointment comprising (a) one member selected from the group consisting of 1-O-n-dodecyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-methyl-branched isostearyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-methyl-branched isostearyl-3-O-n-butyl-2-O-2',3'-dihydroxypropylglycerol, and 1-O-n-octyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol; and (b) a topical agent containing 1 wt % of indomethacin.
Claim 8
Dependent Claim
39 words
The preparation of claim 4, which is in the form of a liquid topical agent comprising (a) one member selected from the group consisting of 1-O-n-dodecyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-methyl-branched isostearyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-methyl-branched isostearyl-3-O-n-butyl-2-O-2',3'-dihydroxypropylglycerol, and 1-O-n-octyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol; (b) indomethacin; (c) ethanol; and (d) water.
Claim 9
Dependent Claim
22 words
The preparation of claim 1, wherein said accelerator is selected from the group consisting of 1-O-n-dodecyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-methyl-branched isostearyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol, 1-O-methyl-branched isostearyl-3-O-n-butyl-2-O-2',3'-dihydroxypropylglycerol, and 1-O-n-octyl-3-O-methyl-2-O-2',3'-dihydroxypropylglycerol.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-21 | 1993-02-20 | 1993-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-21 | 1997-02-20 | 1997-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-21 | 2001-02-20 | 2001-08-22 | $7700.00 | Window Closed / Lapsed |