IP Library Granted Patent US 12,156,927
Granted Patent B2
US 12,156,927 · App. 17/596,426 · Granted Dec 3, 2024

Formulation for odontological and dermatological use containing trchloroacetate salts and hydroxyacids

Inventor: Rossana Castellana (Trieste, IT)
Assignee: GPQ S.R.L.
A61K8/19A61K8/36A61K8/731A61Q19/08
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Quick Facts
Patent No.
US 12,156,927
App. No.
17/596,426
Granted
Dec 3, 2024
Kind
B2
Abstract

Pharmaceutical, odontological, cosmetic and dermatological compositions comprising addition salts of trichloroacetic acid, one or more hydroxyacids and optionally glutamic acid or glutamic acid bioisosteres and phytic acid are useful for the peeling of the gingival collar, skin peeling, for resurfacing, treating skin hyper pigmentation, control sebum production, acne, pore size reduction and reducing the appearance of scars without causing undesirable side effects and contrast in coloration of the treated skin, for stimulation of the fibroblasts, transdermal biorevitalization, stimulation of the production of new collagen, for aesthetic improvement, for skin lightening, skin beautifying, skin firming and skin rejuvenation.

Claims (16)

1. Aqueous formulation for topical use containing

trichloroacetate salts at a concentration ranging between 20 and 40% w/w, wherein the trichloroacetate salts are selected from sodium salt (1:1), ammonium salt (1:1), potassium salt (1:1), magnesium salt (2:1), calcium salt (2:1), zinc salt (2:1) and silver salt (1:1),

one or more hydroxyacids at a concentration ranging between 0.5% and 10% w/w, and

optionally glutamic acid or glutamic acid bioisosteres, phytic acid at a concentration ranging between 0.2 and 4.0% w/w, glycerol at a concentration lower than 15% w/w, oxidants at a concentration lower than 1% w/w and a hydrophilic pharmaceutically acceptable gelling agent in concentration up to 7% w/w.

2. A formulation according to claim 1 in which the trichloroacetate salts are present at a concentration of 32-34% w/w.

3. A formulation according to claim 1 in which the hydroxyacid is selected from tartaric acid, citric acid, glycolic acid, glucuronic acid, alpha-hydroxybutyric acid, alpha-hydroxy-isobutyric acid and lactic acid.

4. A formulation according to claim 1 in which the glutamic acid bioisostere is homocysteic acid.

5. A formulation according to claim 1 in which the oxidant is hydrogen peroxide.

6. A formulation according to claim 1 in which the hydrophilic pharmaceutically acceptable gelling agents are selected among hydroxyethyl cellulose, xanthan gum, sclerotium gum, hydroxypropyl starch phosphate, polyacrylamide and C 13 -C 14 an laureth-7 305 and polyacrylate crosspolymer-6.

7. A formulation according to claim 1 in which the gelling agent is absent.

8. A formulation according to claim 1 in which the gelling agent is present in concentration up to 0.8%.

9. A formulation according to claim 1 in form of compact gel in which the gelling agent is present in concentration up to 7%.

10. Method of treating acne and folliculitis in subjects in need thereof with an antiseptic agent comprising an effective amount of the formulation of claim 1 , said method comprising topically applying said formulation and treating said acne and said folliculitis in said subjects.

11. A method of treating skins defects, for cosmetic peels, for stimulation of fibroblast proliferation in subjects in need thereof with an effective amount of the formulation of claim 1 , said method comprising

topically applying said formulation to said subjects.

12. The method according to claim 11 wherein said skins defects are rhytides, actinic photodamage, hyperpigmentation and scars.

Assignments (2)
CHANGE OF NAME Recorded Dec 17, 2024
From: G.P.Q. S.R.L.
To: WIQO S.P.A.
Reel/Frame 069607/0524 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 3, 2023
From: CASTELLANA, ROSSANA
To: GPQ S.R.L.
Reel/Frame 062870/0628 →
Continuity (2)
Provisional Application 62865364 · Jun 24, 2019
Related Publication 20220304904A1 · Sep 29, 2022