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US 11,229,611 B2Granted
Clobazam transdermal delivery system and uses thereof
AssigneeTaho Pharmaceuticals Ltd.
InventorsMoonika Sari Widjajana, Tachien Lu, Catherine Lee
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Abstract
The present invention relates to transdermal drug delivery system of pharmaceutical compositions, which have a satisfactory in-vitro performance and good bioavailability. In particular, the transdermal pharmaceutical composition of clobazam in the present invention includes a micro-emulsion in liquid or semi solid form, in a dosage form adapted for transdermal delivery (e.g., transdermal patch) for treatment of certain types of epilepsy and anxiety for continues application.
Claims20
A transdermal patch comprising:
- a. 10 to 90% w/w of microemulsion phase;
- b. 0.1% to 40% w/w of adhesive;
- c. 0.1 to 10% w/w of a crystallization inhibitor;
- d. a physiologically effective amount of clobazam loaded in the microemulsion phase, wherein the clobazam content of said patch remains substantially free of crystals when stored at 25° C. for at least four weeks;
- e. a backing layer;
- f. a drug-containing layer comprising the microemulsion phase, wherein the drug-containing layer is disposed on a body proximal side of the backing layer;
- and
- g. a body-contacting adhesive layer and a rate-control layer, wherein the body-contacting adhesive layer and the rate-control layer are disposed on a body proximal side of the drug-containing layer and reduce a flux rate of the clobazam, and wherein the body-contacting adhesive layer and the rate-control layer are made of a material that is different from the drug-containing layer.
5 more elements
Dependencies are inferred from the claim text.