Gel composition for treatment of common acne comprising a combination of benzoyl perozide and adapalene and/or adapalene salt

Abstract

Dermatological/cosmetic compositions suited for preventing or treating cell differentiation and/or proliferation and/or keratinization disorders, including preventing or treating common acne, comprise, in a physiologically acceptable medium, (i) at least one dispersed retinoid, (ii) dispersed benzoyl peroxide, in free or encapsulated form, and (iii) at least one pH-independent gelling agent, selected from the group consisting of (a) polyacrylamide gelling agents, (b) gelling agents which are acrylic polymers coupled to hydrophobic chains, (c) modified starch gelling agents, and mixture thereof, said composition maintaining good chemical stability of (i) and (ii) without their degradation over time at a temperature of between 4° C. and 40° C.

1 - 34 . (canceled) 
     
     
         35 . A physiologically acceptable aqueous gel composition for treatment of common acne comprising:
 0.05% to 1% adapalene and/or at least one pharmaceutically acceptable salt thereof,   2.5% to 5% dispersed benzoyl peroxide; and   2 to 5% of at least one pH-independent gelling agent of the polyacrylamide family, said percentages being based on the weight of the total aqueous gel composition for treatment of common acne.   
     
     
         36 . The physiologically acceptable aqueous gel composition of  claim 35  comprising:
 0.15% adapalene and/or at least one pharmaceutically acceptable salt thereof, and 
 3% dispersed benzoyl peroxide 
 said percentages being based on the weight of the total aqueous gel composition for treatment of common acne. 
 
     
     
         37 . The physiologically acceptable aqueous gel composition of  claim 35  comprising:
 0.3% adapalene and/or at least one pharmaceutically acceptable salt thereof, and 
 2.5% dispersed benzoyl peroxide 
 said percentages being based on the weight of the total aqueous gel composition for treatment of common acne. 
 
     
     
         38 . The physiologically acceptable aqueous gel composition of  claim 35  further comprising at least one additive used in the cosmetics or pharmaceutical field chosen from corticosteroids, antihistamines, antifungal agents, and antibacterial agents, wherein the at least one additive is present in a combined amount ranging from 0.01 to 20% based on the weight of the total aqueous gel composition for treatment of common acne. 
     
     
         39 . The physiologically acceptable aqueous gel composition of  claim 35 , wherein the at least one pH-independent gelling agent of the polyacrylamide family is chosen from polyacrylamide/C13-14 isoparaffin/laureth-7 gelling agent and acrylamide sodium acryloyldimethyltaurate copolymer/isohexadecane/polysorbate 80 gelling agent. 
     
     
         40 . A method for treating common acne comprising administering, to a subject in need thereof, a physiologically acceptable aqueous gel composition for treatment of common acne comprising:
 0.05% to 1% adapalene and/or at least one pharmaceutically acceptable salt thereof,   2.5% to 5% dispersed benzoyl peroxide; and   2% to 5% of at least one pH-independent gelling agent of the polyacrylamide family,   said percentages being based on the weight of the total aqueous gel composition for treatment of common acne.   
     
     
         41 . The method of  claim 40 , wherein the physiologically acceptable aqueous gel composition comprises:
 0.15% adapalene and/or at least one pharmaceutically acceptable salt thereof, and   3% dispersed benzoyl peroxide   said percentages being based on the weight of the total aqueous gel composition for treatment of common acne.   
     
     
         42 . The method of  claim 40 , wherein the physiologically acceptable aqueous gel composition comprises:
 0.3% adapalene and/or at least one pharmaceutically acceptable salt thereof, and   2.5% dispersed benzoyl peroxide   said percentages being based on the weight of the total aqueous gel composition for treatment of common acne.   
     
     
         43 . The method of  claim 40 , wherein the physiologically acceptable aqueous gel composition further comprises at least one additive used in the cosmetics or pharmaceutical field chosen from corticosteroids, antihistamines, antifungal agents, and antibacterial agents, wherein the at least one additive is present in a combined amount ranging from 0.01 to 20% based on the weight of the total aqueous gel composition for treatment of common acne. 
     
     
         44 . The method of  claim 40 , wherein the at least one pH-independent gelling agent of the polyacrylamide family is chosen from polyacrylamide/C13-14 isoparaffin/laureth-7 gelling agent and acrylamide sodium acryloyldimethyltaurate copolymer/isohexadecane/polysorbate 80 gelling agent. 
     
     
         45 . A product for treatment of common acne comprising:
 a container; and   a physiologically acceptable aqueous gel composition for treatment of common acne comprising:   0.05% to 1% adapalene and/or at least one pharmaceutically acceptable salt thereof;   2.5% to 5% dispersed benzoyl peroxide; and   2% to 5% of at least one pH-independent gelling agent of the polyacrylamide family,   said percentages being based on the weight of the total aqueous gel composition for treatment of common acne,   wherein the container contains the aqueous gel composition for treatment of common acne.   
     
     
         46 . The product of  claim 45 , wherein the physiologically acceptable aqueous gel composition comprises anti-acne actives consisting of:
 0.15% adapalene and/or at least one pharmaceutically acceptable salt thereof, and   3% dispersed benzoyl peroxide   said percentages being based on the weight of the total aqueous gel composition for treatment of common acne.   
     
     
         47 . The product of  claim 45 , wherein physiologically acceptable aqueous gel composition comprises anti-acne actives consisting of:
 0.3% adapalene and/or at least one pharmaceutically acceptable salt thereof, and   2.5% dispersed benzoyl peroxide   said percentages being based on the weight of the total aqueous gel composition for treatment of common acne.   
     
     
         48 . The product of  claim 45 , wherein the physiologically acceptable aqueous gel composition further comprises at least one additive used in the cosmetics or pharmaceutical field chosen from corticosteroids, antihistamines, antifungal agents, and antibacterial agents, wherein the at least one additive is present in a combined amount ranging from 0.01 to 20%, based on the weight of the total aqueous gel composition for treatment of common acne. 
     
     
         49 . The product of  claim 45 , wherein the at least one pH-independent gelling agent of the polyacrylamide family is chosen from polyacrylamide/C13-14 isoparaffin/laureth-7 gelling agent and acrylamide sodium acryloyldimethyltaurate copolymer/isohexadecane/polysorbate 80 gelling agent.