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|Title:||Combinations of adapalene and benzoyl peroxide for treating acne lesions|
|Abstract:||Adapalene or a pharmaceutically acceptable salt thereof formulated into a pharmaceutical composition is useful for reducing the number of acne lesions, via daily topical application, in combination or in association with benzoyl peroxide (BPO); such treatment may be via administration of a pharmaceutical composition combining adapalene and BPO or by a concomitant application of two pharmaceutical compositions, one containing adapalene and the other containing BPO.|
|Inventor(s):||Abou-Chacra Vernet; Marie-line (Nice, FR), Gross; Denis (Callian, FR), Loesche; Christian (Valbonne, FR), Poncet; Michel (Mougins, FR)|
|Assignee:||Galderma Research & Development (Biot, FR)|
1. A method for potentiating the action of benzoyl peroxide, comprising administering therewith adapalene or a pharmaceutically acceptable salt thereof, wherein the benzoyl
peroxide and adapalene or pharmaceutically acceptable salt thereof are topically administered together, as active ingredients, combined at fixed doses of 0.1% adapalene and 2.5% benzoyl peroxide in a single formula that delivers said active ingredients
together in synergistically, wherein the adapalene or pharmaceutically acceptable salt thereof and the benzoyl peroxide are the only anti-acne active ingredients in said single formula.
2. The method according to claim 1, wherein the single formula is a gel.
3. A regimen for the therapeutic treatment of acne lesions, the regimen comprising topically applying to the skin of a subject in need of said treatment, as active ingredients, adapalene or a pharmaceutically acceptable salt thereof and benzoyl peroxide, combined at fixed doses of 0.1% adapalene and 2.5% benzoyl peroxide in a single formula that delivers said active ingredients together synergistically, wherein the adapalene or pharmaceutically acceptable salt thereof and the benzoyl peroxide are the only anti-acne active ingredients in said single formula, wherein said single formula is applied once daily for a period of 12 weeks, and wherein the net clinical benefit, expressed as at least one of success rate and reduction in total lesion counts in a group of such subjects, at least one of weeks 1, 2, 4, 8 and 12 is numerically superior to the sum of the net clinical benefits achieved by 0.1% adapalene alone and 2.5% benzoyl peroxide alone at least one of the corresponding time points.
4. The regimen according to claim 3, wherein the single formula is a gel.
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