J-Pharma Co., Ltd. is engaged in drug discovery and development, focusing on amino acid transporters as drug targets. The company researches and develops drugs targeting solute carrier (SLC) transporters, with emphasis on the LAT1 amino acid transporter. It is developing several compounds for various medical indications, including JPH034 for central nervous system demyelinating diseases and multiple sclerosis. The company conducts functional and structural analysis of selected SLC transporters to support drug discovery, collaborates with academic institutions, and participates in joint research for new pharmaceutical development. It is preparing for clinical trials and global distribution of its drug candidates. The company was founded in 2005 and is based in Yokohama, Japan.