Hisamitsu Pharmaceutical. has filed a patent for a ropinirole-containing patch with a unique adhesive agent layer. The patch includes ropinirole or its salt, sodium carboxylate, and an adhesive agent. This innovation could potentially improve drug delivery systems. GlobalData’s report on Hisamitsu Pharmaceutical gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Hisamitsu Pharmaceutical, Microneedles for transdermal drug delivery was a key innovation area identified from patents. Hisamitsu Pharmaceutical's grant share as of January 2024 was 43%. Grant share is based on the ratio of number of grants to total number of patents.
A patent application (Publication Number: US20240016758A1) discloses a ropinirole-containing patch designed to improve skin permeability. The patch consists of a backing layer and an adhesive agent layer, with the adhesive agent layer containing ropinirole or a pharmaceutically acceptable salt, along with sodium carboxylate such as sodium pentanoate, disodium glutarate, or sodium hexanoate, and an adhesive agent. The sodium carboxylate content in the adhesive agent layer ranges from 0.1 to 45% by mass relative to the total mass of the layer, enhancing the skin permeability of ropinirole.
Furthermore, the patent application details a method for enhancing the skin permeability of ropinirole in the patch by incorporating sodium carboxylate into the adhesive agent layer. This method involves adding sodium carboxylate, such as sodium pentanoate, disodium glutarate, or sodium hexanoate, to the adhesive agent layer containing ropinirole or its salt. The sodium carboxylate content in the adhesive agent layer is crucial for improving the skin permeability of ropinirole, ensuring effective drug delivery through the patch. The innovative approach outlined in the patent application aims to optimize the delivery of ropinirole through a transdermal patch, offering potential benefits in the treatment of various medical conditions.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies
