D. Western Therapeutics Institute, Inc. engages in the discovery and development of new biopharmaceuticals, primarily focusing on protein kinase inhibitors for ophthalmic, neuropathic, and respiratory conditions. The company offers Ripasudil hydrochloride hydrate (K-321) for Fuchs endothelial corneal dystrophy licensed to Kowa in the US and other regions; GLA-ALPHA (Ripasudil hydrochloride hydrate/Brimonidine tartrate) for glaucoma and ocular hypertension licensed to Kowa in Japan and Asia; DW-1002 and related products for ILM, ALC, ERM, and PVR membrane staining licensed to DORC in Europe, US, China, and other areas, and to Wakamoto Pharmaceutical in Japan; DW-1001 ophthalmic treatment agent licensed to ROHTO Pharmaceutical in Japan; H-1337 multi-kinase inhibitor for glaucoma and ocular hypertension under internal development in the US; DW-5LBT lidocaine patch for post-shingles neuropathic pain jointly developed with MEDRx in the US; and DWR-2206 regenerative medicine cell product for bullous keratopathy jointly developed with ActualEyes in Japan. Founded in 1999 and headquartered in Nagoya, Japan, with an R&D laboratory at Mie University, the company operates primarily in Japan while licensing products internationally to pharmaceutical partners and targets patients with eye diseases, pain disorders, and related conditions through alliances with universities and biotech firms; it maintains a consolidated subsidiary, Japan Innovative Therapeutics, Inc.. Recent developments include extension of its joint research agreement with the University of Fukui in May 2025 for novel cataract treatments; publication of favorable Phase IIb trial results for H-1337 glaucoma treatment in 2025 positioning it as a potential second-line option; commencement of Phase II trials in Japan for DWR-2206 regenerative cell therapy with ActualEyes; and ongoing Phase III preparations for K-321 while advancing multiple ophthalmic projects through strategic partnerships.