公开(公告)号：US20220117934A1

公开(公告)日：2022-04-21

申请号：US17428699

申请日：2020-01-23

Applicant: HISAMITSU PHARMACEUTICAL CO., INC.

Inventor： Takao KUROKAWA ,  Hiroyuki ARAKI ,  Kimiko KOMATANI

IPC: A61K31/381 ,  A61K9/70 ,  A61K47/32 ,  A61K47/06

Abstract: The present invention provides a rotigotine stabilization method for stabilizing rotigotine and/or a pharmaceutically acceptable salt thereof in a rotigotine-containing patch comprising a backing layer and an adhesive agent layer, the adhesive agent layer containing the rotigotine and/or the pharmaceutically acceptable salt thereof and a styrene-based thermoplastic elastomer, the method comprising further incorporating cross-linked polyvinylpyrrolidone in the adhesive agent layer in a content of 3 to 25% by mass in the adhesive agent layer.

公开(公告)号：US20200306203A1

公开(公告)日：2020-10-01

申请号：US16954627

申请日：2018-12-14

Applicant: HISAMITSU PHARMACEUTICAL CO., INC.

Inventor： Hiroyuki ARAKI ,  Yuka TAKAGI ,  Yoko FUJIWARA ,  Hiroaki KOBAYASHI ,  Takao KUROKAWA

IPC: A61K9/70 ,  A61K31/381

Abstract: The present invention provides a rotigotine-containing patch comprising: a backing layer; and an adhesive agent layer, wherein the adhesive agent layer contains rotigotine and/or a pharmaceutically acceptable salt thereof,the adhesive agent layer further contains a styrene-based thermoplastic elastomer, a petroleum-based resin and/or a terpene-based resin, an aliphatic alcohol, and a cross-linked polyvinylpyrrolidone, andin the adhesive agent layer, a mass ratio of a content of the rotigotine and/or the pharmaceutically acceptable salt thereof in terms of rotigotine free form and a content of the cross-linked polyvinylpyrrolidone (content of the rotigotine and/or the pharmaceutically acceptable salt thereof in terms of rotigotine free form:content of the cross-linked polyvinylpyrrolidone) is 10:3 to 1:3.

公开(公告)号：US20220257528A1

公开(公告)日：2022-08-18

申请号：US17617991

申请日：2020-06-05

Applicant: Hisamitsu Pharmaceutical Co., Inc.

Inventor： Hiroyuki ARAKI ,  Yuka TAKAGI ,  Yoko FUJIWARA ,  Hiroaki KOBAYASHI ,  Takao KUROKAWA

IPC: A61K9/70 ,  A61K31/381

Abstract: The present invention provides a rotigotine-containing patch comprising: a backing layer; and an adhesive agent layer, wherein the adhesive agent layer contains rotigotine and/or a pharmaceutically acceptable salt thereof, and the adhesive agent layer further contains an alicyclic saturated hydrocarbon resin and at least one aliphatic alcohol selected from the group consisting of lauryl alcohol, octyldodecanol, oleyl alcohol, and myristyl alcohol.