IP Library Granted Patent US 12685730
Granted Patent B2
US 12685730 · App. 19/323,422 · Granted Jul 21, 2026

Pharmaceutical composition for keratosis and use thereof

Inventors: Ryuta Saito (Osaka, JP); Yasuaki Matsushita (Osaka, JP)
Assignee: TANABE PHARMA CORPORATION
A61K31/495A61P17/00
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Quick Facts
Patent No.
US 12685730
App. No.
19/323,422
Granted
Jul 21, 2026
Kind
B2
Abstract

A pharmaceutical composition for keratosis contains 5-methyl-2-(1-piperazinyl)benzenesulfonic acid. The compound may be in a form of an anhydrate thereof, a salt thereof, a hydrate or solvate thereof, or a hydrate or solvate of a salt thereof, and the hydrate is, for example, 5-methyl-2-(1-piperazinyl)benzenesulfonic acid monohydrate. The keratosis is, for example, Darier's disease or psoriasis.

Claims (21)

1 . A method for treating Darier's disease, comprising:

administering an effective amount of a pharmaceutical composition comprising 5-methyl-2-(1-piperazinyl)benzenesulfonic acid to a subject in need thereof.

2 . The method of claim 1 , wherein the pharmaceutical composition is orally administered to the subject in need thereof.

3 . The method of claim 1 , wherein the pharmaceutical composition is parenterally administered to the subject in need thereof.

4 . The method of claim 1 , wherein the pharmaceutical composition is administered to the subject in need thereof such that a dosage of the 5-methyl-2-(1-piperazinyl)benzenesulfonic acid is in a range of 1 to 1000 mg/day.

5 . The method of claim 2 , wherein the pharmaceutical composition is administered to the subject in need thereof such that a dosage of the 5-methyl-2-(1-piperazinyl)benzenesulfonic acid is in a range of 1 to 1000 mg/day.

6 . The method of claim 3 , wherein the pharmaceutical composition is administered to the subject in need thereof such that a dosage of the 5-methyl-2-(1-piperazinyl)benzenesulfonic acid is in a range of 1 to 1000 mg/day.

7 . The method of claim 1 , wherein the pharmaceutical composition is administered to the subject in need thereof such that at least one of hyperkeratosis in a stratum corneum, a granular layer and a spinous layer, dyskeratosis in a spinous layer, and acantholysis in a spinous layer is suppressed.

8 . The method of claim 1 , wherein the pharmaceutical composition is administered daily to the subject in need thereof.

9 . The method of claim 1 , wherein the pharmaceutical composition is administered to the subject in need thereof in a range of 1 to 3 times per day.

10 . The method of claim 1 , wherein the subject in need thereof is a patient in need thereof.

11 . The method of claim 4 , wherein the pharmaceutical composition is administered to the subject in need thereof such that at least one of hyperkeratosis in a stratum corneum, a granular layer and a spinous layer, dyskeratosis in a spinous layer, and acantholysis in a spinous layer is suppressed.

12 . The method of claim 4 , wherein the pharmaceutical composition is administered daily to the subject in need thereof.

13 . The method of claim 4 , wherein the pharmaceutical composition is administered to the subject in need thereof in a range of 1 to 3 times per day.

14 . The method of claim 4 , wherein the subject in need thereof is a patient in need thereof.

15 . The method of claim 1 , wherein the pharmaceutical composition is administered to the subject in need thereof such that a dosage of the 5-methyl-2-(1-piperazinyl)benzenesulfonic acid is in a range of 10 to 500 mg/day.

16 . The method of claim 1 , wherein the pharmaceutical composition is administered to the subject in need thereof such that a dosage of the 5-methyl-2-(1-piperazinyl)benzenesulfonic acid is in a range of 100 to 400 mg/day.

17 . The method of claim 2 , wherein the pharmaceutical composition is administered to the subject in need thereof such that a dosage of the 5-methyl-2-(1-piperazinyl)benzenesulfonic acid is in a range of 10 to 500 mg/day.

18 . The method of claim 2 , wherein the pharmaceutical composition is administered to the subject in need thereof such that a dosage of the 5-methyl-2-(1-piperazinyl)benzenesulfonic acid is in a range of 100 to 400 mg/day.

19 . The method of claim 10 , wherein the pharmaceutical composition is administered to the patient in need thereof such that a dosage of the 5-methyl-2-(1-piperazinyl)benzenesulfonic acid is in a range of 10 to 500 mg/day.

20 . The method of claim 10 , wherein the pharmaceutical composition is administered to the patient in need thereof such that a dosage of the 5-methyl-2-(1-piperazinyl)benzenesulfonic acid is in a range of 100 to 400 mg/day.