Kaken Pharmaceutical Co. Ltd.’s license agreement with Johnson & Johnson (J&J) for signal transducer and activator of transcription (STAT)6 inhibitor KP-723 could presage further deals in STAT6, where a number of developers are active. Kaken’s arrangement with J&J involves the global development, manufacturing and sale of KP-723, which has reached the preclinical stage. Tokyo-based Kaken will take the drug through phase I trials, after which J&J takes over.